JP2003223634A - Image reader and image reading method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image reader and an image reading method capable of improving the efficiency of an image recognition by shortening an image reading time. <P>SOLUTION: This image reader reading an optical image of a photographing object by a camera 9 with a line sensor 11 stores information related to a plurality of intake ranges of the image by the line sensor 11 in a storage part 13, collates the information related to a single intake range by a pixel selecting part 10 to select a pixel outputting an image signal, outputs the image signal from the selected pixel alone, receives a changeover signal from a facility control part 25 of a whole control device 20, and changes over the information related to the intake range referred by the pixel selecting part 10 to the information related to another intake image. This constitution can shorten the image reading time so as to improve the efficiency of the image recognition. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading device and an image reading method for reading an image of an image pickup target.

[0002]

2. Description of the Related Art An electronic component mounting apparatus for mounting electronic components on a board generally includes an image reading device for recognizing the position of the electronic components. When mounting the electronic components on a mounting point of the board, Positioning is performed based on the position recognition result. In such an image reading apparatus, an image pickup unit such as a line sensor in which a plurality of pixels are arranged in a row is used. When an optical image is formed on these image pickup means, electric charge corresponding to the optical image is stored in each pixel, and by outputting the electric charge as an electric signal (image signal),
The image data of the imaging target can be obtained.

In recent years, as such a line sensor, a CMOS type sensor capable of reading an image signal from an arbitrary pixel has been used. By using the CMOS type sensor, it is possible to selectively output the image signal only from the pixels belonging to the image capturing range that is the output target of the image signal among all the pixels, so that the image signal can be output from the unnecessary pixels. There is an advantage that waste of the image reading time due to the transfer can be eliminated. This pixel selection is performed based on a preset image capture range.

[0004]

Recently, with the increase in speed of electronic component mounting apparatuses, it has been required to reduce the time required for image recognition. Moreover, there are various types and sizes of electronic components that are targets of image recognition, and the image reading apparatus is required to process different types of imaging targets at high speed. However, this kind of
When the above CMOS type line sensor is used in an image reading apparatus that requires high-speed processing, the following problems have conventionally been encountered.

In the CMOS type line sensor, in the case of targeting various kinds of electronic parts having different sizes, it is necessary to change the range of pixels to be selected by updating the information regarding the capture range for each image pickup target. is there. Since the image signal cannot be output from the pixels while the information regarding the capture range is being read, the higher the update frequency of the information regarding the capture range, the more frequently the image reading is interrupted. There has been a problem that the image reading time as a whole is delayed and the improvement in the efficiency of image recognition is hindered.

Therefore, an object of the present invention is to provide an image reading apparatus and an image reading method that can shorten the image reading time and improve the efficiency of image recognition.

[0007]

An image reading apparatus according to claim 1 is an image reading apparatus which outputs an image picked up by an image pickup device having a plurality of pixels as an image signal to the outside.
A communication unit that externally receives information regarding the capturing range of the image by the image sensor, a storage unit that stores a plurality of information regarding the capturing range, and the storage unit that receives information regarding the capturing range received by the communication unit. Writing means for writing to
A pixel selection unit that selects a pixel that outputs an image signal by referring to information about one capture range stored in the storage unit and outputs an image signal only from the selected pixel, and a pixel selection unit that outputs the image signal from the pixel An image output unit that outputs an image signal to the outside, and a switching signal from the outside is received, and the information about the capture range referred to by the pixel selection unit is switched to information about another capture range stored in the storage unit. A switching means was provided.

An image reading apparatus according to a second aspect is the image reading apparatus according to the first aspect.
The image reading device according to claim 1, wherein the storage unit includes a first storage region and a second storage region, and the pixel selection unit refers to information regarding a capture range stored in the first storage region to determine the pixel. And the writing means writes the information about the capture range newly received by the communication unit in the second storage area, and the capture range referred to by the pixel selection unit when the switching means receives the switching signal. The information is switched to the information on the capture range stored in the second storage area, and the storage area in which the writing means newly writes the information on the capture range is switched to the first storage area.

An image reading apparatus according to a third aspect of the present invention is the image reading apparatus according to the first aspect.
The image reading apparatus according to claim 1, wherein the writing unit writes information regarding a plurality of capturing ranges received by the communication unit in the storage unit in a predetermined order, and the switching unit receives the switching signal from the outside. The information regarding the capture range referred to by the pixel selection unit is switched in the predetermined order.

An image reading apparatus according to a fourth aspect is an image reading apparatus for outputting an image picked up by an image pickup device having a plurality of pixels as an image signal to the outside, and relates to an image pickup range of the image pickup device. A communication unit for externally receiving imaging information including information and parameters for image quality adjustment; a storage unit for storing a plurality of the imaging information; a writing unit for writing the imaging information received by the communication unit in the storage unit; A pixel selection unit that selects a pixel to output an image signal by referring to information regarding a capture range in one piece of imaged information stored in the storage unit and outputs an image signal only from the selected pixel; An image output unit that corrects the image signal output from the pixel and outputs the image signal by referring to the image quality adjustment parameter in the two pieces of image pickup information, and receives the switching signal from the outside to receive the image signal. Comprising a switching means for switching selector and imaging information by the image output unit refers to other imaging information stored in the storage unit.

An image reading apparatus according to a fifth aspect is the image reading apparatus according to the fourth aspect.
The image reading device according to claim 1, wherein the storage unit includes a first storage region and a second storage region, and the pixel selection unit refers to information regarding a capture range stored in the first storage region to determine the pixel. The image output unit corrects the image signal output from the pixel with reference to the image quality adjustment parameter stored in the first storage area, and outputs the corrected image signal to the outside. Writes the newly received imaging information in the second storage area, and when the switching unit receives the switching signal, the pixel selection unit refers to the information about the capture range and the image output unit refers to the image quality adjustment. The parameter is switched to the information relating to the capture range and the parameter for image quality adjustment stored in the second storage area, and the storage area for writing the newly received imaging information by the writing means is the first storage area. It switched.

An image reading apparatus according to a sixth aspect is the image reading apparatus according to the fourth aspect.
The image reading device according to claim 1, wherein the writing unit stores a plurality of image pickup information received by a communication unit in a predetermined order in the storage unit, and the switching unit receives the switching signal from the outside, the pixel The imaging information referred to by the selection unit and the image output unit is switched in the predetermined order.

According to another aspect of the image reading method of the present invention, an image pickup device having a plurality of pixels, a communication unit for receiving data from the outside, a storage unit for storing the received data, and a plurality of the plurality of pixels are provided. What is claimed is: 1. An image reading method in an image reading apparatus including a pixel selection unit that selects a pixel for outputting an image signal and outputs the image signal only from the selected pixel, wherein information about an image capturing range by the image sensor is provided. Receiving a plurality of steps, writing the received information about the capture range to the storage unit, selecting a pixel that outputs an image signal based on the information about one capture range written in the storage unit, An image is output based on the step of outputting an image signal from the selected pixel and the information on another one of the capturing ranges written in the storage unit in response to a switching signal from the outside. Selects a pixel to be output, and outputting the image signal from the selected pixel.

According to another aspect of the image reading method of the present invention, an image pickup device having a plurality of pixels, a communication section for receiving data from the outside, a first storage area for storing the received data, and a second storage area.
An image reading method in an image reading apparatus, comprising: a storage section having a storage area; and a pixel selection section that selects a pixel that outputs an image signal from the plurality of pixels and outputs an image signal only from the selected pixel. And receiving the information about the first capture range of the image by the image sensor, writing the received information about the first capture range to the first storage area, and the first storage area. Selecting a pixel for outputting an image based on the information about the first capture range written in the image, outputting an image signal from the selected pixel, and an image by the image sensor during the step of outputting the image signal. Receiving information regarding the second capture range of the second storage area, and information regarding the second capture range received during the step of outputting the image signal. And writing the second written by receiving a switching signal from the outside to the second storage area
Selecting a pixel to output an image based on the information about the capture range of and outputting an image signal from the selected pixel.

According to another aspect of the image reading method of the present invention, an image pickup device having a plurality of pixels, a communication unit for receiving data from the outside, a storage unit for storing the received data, and the plurality of pixels among the plurality of pixels. What is claimed is: 1. An image reading method in an image reading apparatus including a pixel selection unit that selects a pixel for outputting an image signal and outputs the image signal only from the selected pixel, wherein information about an image capturing range by the image sensor is provided. A plurality of receiving steps, a step of writing the received information about the capture range in the storage unit in a predetermined order, and a step regarding the first capture range in the order of the information about the capture range written in the storage unit The step of selecting a pixel for outputting an image based on information, outputting an image signal from the selected pixel, and receiving a switching signal from the outside and relating to the leading capture range Selects a pixel that outputs the image based on information about the next acquisition range of information, and outputting the image signal from the selected pixel.

According to a tenth aspect of the present invention, there is provided an image reading method, wherein an image pickup device having a plurality of pixels, a communication section for receiving data from the outside, a storage section for storing the received data, and the plurality of pixels among the plurality of pixels. An image reading method in an image reading device, comprising: a pixel selection unit that selects a pixel that outputs an image signal and outputs the image signal only from the selected pixel; and an output unit that corrects and outputs the image signal. A step of receiving a plurality of pieces of imaging information including information regarding a capture range and a parameter for image quality adjustment; a step of writing the received imaging information in the storage unit; and one of the imaging information written in the storage unit. Selecting a pixel to output an image based on the information on the capture range of the image, outputting an image signal from the selected pixel, and a step for image quality adjustment in the one image pickup information. A step of correcting the image signal output from the pixel based on the meter, and based on the information regarding the capture range in the other one of the image pickup information written in the storage section in response to the switching signal from the outside. Selecting a pixel to output an image, outputting an image signal from the selected pixel, and correcting the image signal output from the pixel based on a parameter for image quality adjustment in the other one of the image pickup information And steps.

According to an eleventh aspect of the present invention, there is provided an image reading method, which comprises an image pickup device having a plurality of pixels, a communication section for receiving external data, a first storage area for storing the received data, and a second storage area. A storage unit provided, a pixel selection unit that selects a pixel that outputs an image signal from the plurality of pixels and outputs an image signal only from the selected pixel, and an output unit that corrects and outputs the image signal. An image reading method in an image reading apparatus provided, comprising: receiving information regarding a first capture range and a first image quality adjustment parameter; and receiving the received information regarding the first capture range and the first
Writing a parameter for image quality adjustment in the first storage area, and selecting a pixel to output an image based on the information about the first capture range written in the first storage area, and selecting the pixel from the selected pixels. The step of outputting an image signal, the step of correcting the image signal output from the pixel based on the first parameter for image quality adjustment, and the step of outputting the image signal during the second capturing range are related. The step of receiving information and a second image quality adjustment parameter; and the information on the second capture range received during the step of outputting the image signal and the second image quality adjustment parameter stored in the second storage. Pixels for outputting an image based on the step of writing in the area and the information about the second capture range written in the second storage area in response to a switching signal from the outside Selected, comprising the steps of outputting an image signal from the selected pixel, the step of correcting the image signal outputted from said pixel based on said second parameter for image quality adjustment.

According to a twelfth aspect of the present invention, there is provided an image reading method, wherein an image pickup device having a plurality of pixels, a communication section for receiving data from the outside, a storage section for storing the received data, and the plurality of pixels among the plurality of pixels. An image reading method in an image reading apparatus including a pixel selection unit that selects a pixel for outputting an image signal and outputs the image signal only from the selected pixel,
Receiving a plurality of pieces of imaging information including information about a capture range and parameters for adjusting image quality; writing the received imaging information in the storage unit in a predetermined order; and the imaging information written in the storage unit Selecting a pixel to output an image based on the information regarding the capture range in the first imaging information in the order, and outputting an image signal from the selected pixel; and an image quality in the first imaging information. A step of correcting the image signal output from the pixel based on a parameter for adjustment, and a step of receiving a switching signal from the outside, based on information regarding a capture range in the next image pickup information of the image pickup information next to the first image pickup information Selecting a pixel for outputting an image, outputting an image signal from the selected pixel, and selecting from the pixel based on an image quality adjustment parameter in the next imaging information. Comprising the step of correcting the force image signal.

According to the present invention, a plurality of pieces of information regarding the image capturing range of the image pickup device are stored, and the pixel selecting section refers to the information regarding one capturing range to select a pixel for outputting an image signal. The image reading time can be reduced by outputting the image signal only from the selected pixel, receiving the switching signal from the outside, and switching the information on the capture range referred to by the pixel selection unit to the information on another capture range. The efficiency of image recognition can be improved by shortening.

[0020]

(First Embodiment) FIG. 1 is a perspective view of an electronic component mounting apparatus according to a first embodiment of the present invention, and FIG. 2 is a control system of the electronic component mounting apparatus according to the first embodiment of the present invention. FIG. 3 is a partial perspective view of a camera of the image reading apparatus according to the first embodiment of the present invention, and FIG. 4 shows an image capturing range by the image reading apparatus according to the first embodiment of the present invention. FIG. 5 is a diagram showing imaging information of the image reading device according to the first embodiment of the present invention, FIG. 6 is a flowchart of an electronic component mounting method by the electronic component mounting device according to the first embodiment of the present invention, and FIG. FIG. 8 is a flowchart of the image reading method according to the first embodiment of the present invention, and FIG. 8 is an explanatory diagram showing timings of writing mode setting information and image signals in the image reading method according to the first embodiment of the present invention.

First, the electronic component mounting apparatus will be described with reference to FIG. In FIG. 1, a transport path 2 is arranged in the X direction at the center of a base 1. The transport path 2 transports and positions the substrate 3. A component supply unit 4 for supplying electronic components is arranged on both sides of the transport path 2, and each component supply unit 4
A large number of tape feeders 5 are arranged side by side. The tape feeder 5 stores the electronic components held on the tape,
By feeding this tape at a pitch, electronic components are supplied to the pickup position.

Two Y-axis tables 6A and 6B are arranged in parallel at both ends of the upper surface of the base 1, and an X-axis table having a transfer head 8 mounted on the Y-axis tables 6A and 6B. 7 is installed. The transfer head 8 has a plurality of suction nozzles 8a for sucking electronic components at its lower end (see FIGS. 2 and 3).
It is possible to hold a plurality of electronic components. By driving the Y-axis tables 6A and 6B and the X-axis table 7, the transfer head 8 moves horizontally, picks up a plurality of electronic components from the pickup position of the tape feeder 5, and transfers and mounts them on the substrate 3. The Y-axis tables 6A and 6B and the X-axis table 7 are a transfer mechanism that transfers a plurality of electronic components onto the substrate 3 by the transfer head 8 and sequentially mounts these electronic components on the substrate 3.

A camera 9 for picking up an image of a plurality of electronic components held by the transfer head 8 is arranged on the moving path of the transfer head 8 between the transport path 2 and the component supply unit 4. The camera 9 captures a scanned image of the electronic component by imaging the electronic component with the camera 9 while moving the transfer head 8. The electronic components are identified and the position is detected by recognizing the obtained scanned image, and the transfer head 8 is positioned on the substrate 3 based on the recognized position of the electronic part. A plurality of electronic components held by the head 8 are sequentially mounted on the substrate 3.

Next, the configuration of the control system of the electronic component mounting apparatus will be described with reference to FIG. In FIG. 2, 19 shown by a rectangular frame shows the configuration of the image pickup unit as an image reading device that outputs the image picked up by the camera 9 as an image signal to the outside, and 20 shown by a rectangular frame shows the image signal of the image reading device. The configuration of the overall control device (equipment-side control device) of the electronic component mounting apparatus that is the target of outputting

In FIG. 2, the motor 7a is a transfer head 8
The feed screw 7c for moving in the X direction is rotationally driven. The motor 7a is a mechanism drive unit 28 of the overall control device 20.
Driven by. The motor 7a includes an encoder 7b. When the position detection unit 27 (described later) of the overall control device 20 receives the pulse signal output from the encoder 7b, the relative position of the electronic component held by the suction nozzle 8a of the transfer head 8 with respect to the line sensor 11 is determined. It is detected as information.

The image pickup section 19 is composed of a line sensor 11 constituting the camera 9, a pixel selection section 10, a camera control section 12, a storage section 13, an image output section 14 and a communication section 16. The line sensor 11 includes a plurality of pixels 11a arranged in series in the Y direction (see FIG. 3). By forming an optical image on the line sensor 11 by an optical system (not shown) such as a lens, the photoelectric conversion element provided in each pixel 11a is exposed to accumulate electric charges. An image signal is read by outputting this electric charge as an electric signal.

FIG. 3 shows an operation when the electronic component held by the transfer head 8 is imaged by the camera 9 having the line sensor 11. In the imaging operation, the four suction nozzles 8a have different types of electronic components Pa, Pb,
The transfer head 8 holding Pc and Pd respectively has a first passing point R1 set before and after the line sensor 11.
To the second passing point R2 at a predetermined scan speed. By this scanning operation, the electronic component P in a state proved from below by the illumination device 18 arranged around
The line sensor 11 images a, Pb, Pc, and Pd. Note that illustration of an optical system such as a lens is omitted in FIG.

In this image pickup, the range of the image captured by the line sensor 11 can be arbitrarily set within the range of the pixel array length, and the line sensor 11 can be set according to the image pickup target.
The image capturing range is determined. Then, when a pixel to which an image signal is to be output is set in the pixel selection unit 10 based on the information regarding the acquisition range that defines the acquisition range of the image, the acquisition is performed among the pixels 11a connected to the pixel selection unit 10. The image signal is periodically output only from the pixels 11a corresponding to the range. This pixel setting is performed by the pixel selection unit 10 referring to the information about one capture range among the information about the capture ranges stored in the storage unit 13 via the camera control unit 12.

Next, referring to FIG. 4, the electronic component P described above is used.
An image capturing range set for capturing a, Pb, Pc, and Pd will be described. These electronic components Pa,
In order to collectively capture images of Pb, Pc, and Pd by one scanning operation, the image capturing windows A, B, C, and D as shown in FIG.
It is set corresponding to each of c and Pd.

This image capture window A, B, C, D
Is set to a size necessary and sufficient to include each electronic component to be imaged, and in the Y direction, a capture range indicating a range of pixels to which an image signal is to be output among the pixels of the line sensor 11, For the X direction, line sensor 1
It is determined by a numerical value indicating the relative position between 1 and the electronic component. And these image capture windows A, B, C, D
Based on, the capture ranges (1) to (5) shown in FIG.
Is set.

That is, as shown in FIG. 4B, the capture range (1) is limited to the pixels 11a (A) in the range corresponding to the image capture window A, and the capture ranges (2) and (4) are Pixels 11a in the range corresponding to the image capture window C
(C) only, and the capture range (5) is composed of only the pixels 11a (D) in the range corresponding to the image capture window D. On the other hand, the capture range (3) includes pixels 11a (C) in the range corresponding to the image capture window C and pixels 11a in the range corresponding to the image capture window B.
(B).

When a pixel for outputting an image signal is set by the camera control unit 12 based on the information on the capture range, the pixel selection unit 10 only selects from the pixels 11a corresponding to the information on the capture range. The image signal is output periodically.

The switching of these capture ranges is performed by the X value indicating the relative position of the line sensor 11 and the transfer head 8 in the X direction. In FIG. 4A, X on the vertical axis
S and XE correspond to the image reading operation start position and the image reading operation end position, respectively. X1 and X2 are in the capture range (1), X3 and X4 are in the capture range (2), and X4 and X5 are in the capture range. The capture range (3), X5, and X6 represent the capture range (4), and X7 and X8 represent the capture start position and capture end position corresponding to the capture range (5), respectively.

By receiving the pulse signal from the encoder 7b, the overall controller 20 monitors the X value, which is the position information indicating the relative position between the line sensor 11 and the transfer head 8, and monitors the X value. Thus, if it is detected that the image capture window switching timing has come, a mode switching signal is output to the camera control unit 12. When the camera control unit 12 receives the mode switching signal, it reads the information about the capture range corresponding to the next image capture window from the storage unit 13, and based on this information, determines which pixel should output the image signal to the pixel selection unit 10. Set.

Note that, in these capture ranges, for example, the capture range (1) and the capture range (2) differ in the period at which the pixels output the image signal, depending on the number of pixels in the capture range. That is, the larger the number of pixels, the longer the output cycle, and conversely, the smaller the number of pixels, the shorter the output cycle. Therefore, the time during which each pixel is exposed to light and accumulates charges differs depending on the number of pixels in the capture range, and the quality of the resulting image differs. Since it is not preferable that the image quality of the image obtained by the same scanning operation varies depending on the capture range, the image reading apparatus according to the present embodiment sets the image quality adjustment parameter as described below and outputs the capture target to be output. The image signal is corrected according to the number of pixels in the range so that the variation in image quality is reduced, and then the image signal is output.

Next, the image pickup information will be described. Here, the imaging information is information necessary for imaging the imaging target according to the setting conditions by the line sensor 11 and outputting the image signal acquired by the imaging according to the setting conditions. It includes information about the image capture range that is set correspondingly, and image quality adjustment parameters such as gain and offset for adjusting the image quality. The imaging information is created by collecting each of the above-mentioned information for each mounting turn by the transfer head 8 and combining the information with respect to the loading start position, the loading end position, and a mode switching position described later. By referring to these pieces of imaging information every time, all information necessary for imaging can be acquired.

FIG. 5 shows an example of the image pickup information, and the image pickup information of the first turn shown in FIG. 5 corresponds to the image capture window setting example shown in FIG. In the imaging information corresponding to one mounting turn, information regarding a capture range and mode setting information including a gain and an offset are stored for each mode. Further, an image capture start position and a capture end position by the line sensor 11 are stored. And information about the mode switching position is stored. Here, the mode refers to information relating to imaging conditions when the camera 9 images a plurality of electronic components held by the transfer head 8 in each mounting turn, in association with the image capturing order in the mounting turn. is there.

By sequentially switching these modes, it is possible to capture an image signal from a predetermined image capture range, correct the captured image signal in accordance with a predetermined image quality adjustment parameter, and output the corrected image signal. You can do it. In general, the imaging information corresponding to one mounting turn includes a plurality of modes, and in the scanning operation in which the transfer head 8 moves with respect to the camera 9 to image a plurality of electronic components, these modes are sequentially selected. By switching, it is possible to obtain images of a plurality of electronic components by the same scanning operation.

The take-in start position and the take-in end position indicate the X-direction positions corresponding to the timings when the equipment control unit 25 outputs the write permission signal and the write stop signal to the image storage unit 22, respectively. The mode switching position indicates the X-direction position at which the capture range should be switched.
Here, the position (X2, X4, X5, X) corresponding to the timing when the preset mode ends as the mode switching position.
6) is used, but for mode switching when there is a time delay between the preset mode and the next mode, for example, the switching timing from mode (1) to mode (2) is between X2 and X3. If it is any position,
The switching timing from the mode (4) to the mode (5) may be any position as long as it is between X6 and X7.

In the present embodiment, the X numerical value indicating the position coordinate of the transfer head 8 in the X direction is used as a parameter for setting the timing of start of capturing, end of capturing and timing of mode switching. Instead, the time elapsed from a specific timing (for example, the image reading processing start timing) may be used as the parameter.

Referring again to FIG. 2, the storage unit 13 has a first storage area M1 and a second storage area M2, and the mode setting information is stored in the first storage area M1 and the second storage area M2, respectively. Of these storage areas, the camera control unit 1
One of them is set as the reference memory by 2, and the other storage area becomes the non-reference memory. In the mode setting described below, the camera control unit 12 refers to the mode setting information written in the storage area set in the reference memory.

The image output unit 14 outputs the image signal output from the pixel 11a via the pixel selection unit 10 to the overall control device 2.
Output for 0. At this time, the pixel 11 is referred to by referring to the image quality adjustment parameter in one of the mode setting information among the plurality of mode setting information written in the storage unit 13.
The image signal output from a through the pixel selection unit 10 is
It is designed to be corrected and output by performing image quality adjustment such as gain and offset.

The function of the camera controller 12 will be described. The camera control unit 12 has an overall control function of image capturing by the image capturing unit 19 and image data output, and a mode setting described below based on a command from the equipment control unit 25 of the overall control device 20 which is an external device. , Reference memory switching, and mode setting information writing processing.

The mode setting process will be described. In this mode setting, the camera control unit 12 reads the mode setting information written in one of the two storage areas of the storage unit 13 which is set as the reference memory,
The pixel selection unit 10 is set with information about the range of image capture by the line sensor 11, and the image output unit 14 is set with image quality adjustment parameters such as gain and offset for adjusting image quality.

The switching of the reference memory is performed by a mode switching signal output from the equipment control unit 25 as a timing signal for instructing the timing of switching the capturing range. The camera control unit 12 receives the leased line (see FIG. 2, from the equipment control unit 25).
Mode setting information stored in another storage area of the storage unit 13 by receiving the mode switching signal output via the code (f) and referring to the mode setting information referred to by the pixel selection unit 10 and the image output unit 14. Switch to. That is, the camera control unit 12 receives the switching signal from the outside, and the pixel selection unit 10 receives.
Is a switching means for switching the information regarding the capture range referred to by the above-mentioned information to the information regarding other capture ranges stored in the storage unit 13.

Writing of mode setting information will be described. The communication unit 16 receives the mode setting information from the overall control device 20 via the data transmission cable 17. The mode setting information sent from the communication unit 16 to the camera control unit 12 is written in the storage unit 13 by the camera control unit 12. The camera control unit 12 is a writing unit that writes the mode setting information received from the overall control device 20 into the storage unit 13.

During the operation of the electronic component mounting apparatus, a large number of mounting turns are repeatedly executed, so that there are many types of mode setting information to be referred to. On the other hand, since the storage unit 13 includes only two storage areas, the mode setting information is written in the two storage areas and the mode setting information written in these storage areas in the imaging operation. Are alternately referred to as described below.

That is, after the camera control unit 12 writes one mode setting information in the first storage area M1, the pixel selection unit 10 makes information about the capture range of the mode setting information stored in the first storage area M1. To select the pixel 11a that outputs an image signal, and the image output unit 14
The image signal output from the pixel 11a is corrected with reference to the image quality adjustment parameter stored in the storage area M1 and output to the outside.

Further, the camera control section 12 writes the mode setting information newly received by the communication section 16 from the overall control device 20 via the data transmission cable 17 in the second storage area M2. Then, when the camera control unit 12 receives the mode switching signal, the information regarding the capture range referred to by the pixel selection unit 10 and the image quality adjustment parameter referred to by the image output unit 14 are stored in the second storage area M2. The storage area of the writing destination for writing the newly received mode setting information by the camera control unit 12 is switched to the first storage area M1.

Next, the structure of the overall control device 20 will be described. In FIG. 2, the image input unit 21 is connected to the image output unit 14 of the image pickup unit 19 via the image data transmission cable 15, and receives the image signal whose image quality is corrected by the image output unit 14. The received image signal is stored in the image storage unit 22. The writing control of the image storage unit 22 is performed by a writing permission signal and a writing stop signal output from the facility control unit 25 to the image storage unit 22.

The recognition processing section 23 recognizes the positions of the plurality of electronic components held by the transfer head 8 from the image generated based on the image signal stored in the image storage section 22.
The recognition result is transmitted to the equipment control unit 25, and the equipment control unit 25
By controlling the mechanism drive unit 28 based on the position of the electronic component recognized by the recognition processing unit 23 and the position of the transfer head 8 detected by the position detection unit 27, the transfer head when mounting the electronic component 8 positions are controlled. Therefore, the equipment control unit 25 serves as mounting control means for controlling the mounting operation of the transfer head 8. Data storage unit 2
Reference numeral 6 stores imaging information and data necessary for operating the electronic component mounting apparatus. The position detection unit 27 counts the pulse signal of the encoder 7b and outputs the current position of the transfer head 8 in the X-axis direction to the equipment control unit 25.

The communication unit 24 is connected to the communication unit 16 of the image pickup unit 19 via the data transmission cable 17, and sends commands and data from the equipment control unit 25 to the image pickup unit 19. The equipment control unit 25 reads out the mode setting information in the imaging information from the data storage unit 26, and the communication unit 24,
The data is transmitted to the camera control unit 12 via the data transmission cable 17 and the communication unit 16. Then, the camera control unit 12 receives the mode setting information and writes the mode setting information in the first storage area M1 and the second storage area M2.

Further, the equipment control unit 25 includes a position detection unit 27
By monitoring the position information of the transfer head 8 detected by and comparing it with the position information indicated by the capture start position, capture end position, and mode switch position in the imaged information, the mode switch signal, capture The start signal and the capture end signal are output to the camera control unit 12 via the dedicated line (f) for signal transmission. The purpose of using the dedicated line here is to increase the communication speed and perform processing without time delay.

Therefore, the data storage section 26 and the equipment control section 25 serve as acquisition range information providing means for providing the image pickup section 19 with information on the acquisition range, and the equipment control section 25 switches the acquisition range timing. Is a switching signal output means for outputting a mode switching signal for informing.
The switching signal output means monitors the position of the transfer head 8 passing above the line sensor 11 and outputs a mode switching signal when the transfer head 8 reaches a predetermined position. Has been done.

This electronic component mounting apparatus is configured as described above. Next, the control processing in the electronic component mounting operation will be described with reference to FIG. This processing is performed by a command from the equipment control unit 25. Prior to starting the mounting operation, first, a mounting turn number counter N indicating the mounting turn number is reset to zero (ST1). Next, 1 is added to the counter N (ST2). As a result, the processing for the [1] th mounting turn is started. That is, the equipment control unit 25 reads the imaging information of the [1] th mounting turn from the data storage unit 26 (ST3).

Next, electronic component pickup is executed (S
T4). That is, the transfer head 8 picks up a plurality of electronic components from the component supply unit 4. After that, the transfer head 8 is moved and moved toward the camera 9. Then, as shown in FIG. 3, the transfer head 8 starts moving from the first passage point R1 toward the second passage point R2 (ST5). If the transfer head 8 reaches the image reading operation start position (see XS shown in FIG. 4) during this movement, the image reading process is executed (ST6).

The image signals of the plurality of electronic components output by the image reading process are stored in the image storage unit 22, and the images of the plurality of electronic components are obtained based on these image signals. When the image reading is completed, an operation of moving the transfer head 8 to the mounting position on the substrate 3 (ST7),
The recognition processing unit 23 executes the recognition processing (ST8) at the same time. In this recognition processing, the position of the electronic component held by the transfer head 8 is recognized from the images of the plurality of electronic components.

When the transfer head 8 reaches the substrate 3, the transfer head 8 is positioned on the substrate 3 based on the position of the electronic component obtained by the recognition processing section 23. A mounting operation of sequentially mounting a plurality of electronic components held by the head 8 on the substrate 3 is executed (S
T9).

Thereafter, it is confirmed whether or not all the mounting turns are completed (ST10), and if not completed (ST10).
Returning to 2), the same processing is repeated. The processes of (ST2) to (ST9) are repeated until all the mounting turns are completed, and it is confirmed that all the mountings are completed, and the mounting operation is ended.

Next, with reference to FIGS. 7 and 8, the image reading process of the flow (ST6) will be described. Figure 8
Storage unit 1 in image reading processing by the line sensor 11
3, the timing of writing the mode setting information to the No. 3 and the writing of the image signal to the image storage unit 22 are made to correspond to the X value indicating the position of the transfer head 8, and further related to the division of the reference memory and the mode at the time of outputting the image signal. This is what was shown. Here, a processing example in the case of reading an image with reference to imaging information (FIG. 5) created corresponding to the setting example of the capture range shown in FIG. 4 is shown.

First, the value of the mode switching counter is set to 2 (MK
= 2) (ST11). The reason for making such settings in advance is that modes (1), (2)
This is because the information of (1) is written in advance prior to the execution of image reading, so that the next read target is set to mode (3) in advance.

Then, mode setting information of mode (1) is written in the memory M1 and mode setting information of mode (2) is written in the memory M2 (ST12). This writing is performed by the camera control unit 12
Receives the mode setting information from the equipment control unit 25 via the communication unit 16, and writes the received mode setting information (see FIG. 5) in the storage unit 13. That is, in this process, a plurality of mode setting information including information regarding the capture range and parameters for image quality adjustment is received.

Next, the reference memory of the storage unit 13 is set in the storage area M1 and the non-reference memory is set in the storage area M2 (ST13). This setting is performed by a mode switching signal output from the equipment control unit 25 to the camera control unit 12. As a result, as shown in FIG. 8, the first storage area M1 is set as the reference memory at the timing when the transfer head 8 reaches the image reading operation start position XS, and the mode (1 stored in the first storage area M1 is set. ), The image signal is output from the line sensor 11 according to the capture range (1) (see FIG. 5). Then, the output image signal is subjected to image quality correction by the image output unit 14 by the image quality adjustment parameters (gain (1), offset (1)) of the mode (1), and then the image signal is input to the image input unit 21. Is output.

Upon completion of the above processing, the line sensor 11 becomes ready for image capturing, and in this state, the equipment control unit 25 monitors the current position of the transfer head 8 to detect the image capture start timing. Perform (ST14).

If it is detected that the transfer head 8 has reached the loading start position X1 during this monitoring, the equipment control unit 2
5 outputs a write permission signal to the image storage unit 22 (S
T15). After outputting the write enable signal, (ST
Returning to 14), the transfer head current position monitoring is continued.

With this write enable signal, as shown in FIG. 8, the image signal (electronic component Pa (see FIG. 4)) output from the pixel 11a of the line sensor 11 at the timing when the position of the transfer head 8 becomes X1. (Including) is started to be written to the image storage unit 22. When it is detected in the transfer head current position monitoring that the loading end position X2 is reached, the write permission signal is stopped (S).
T16). As a result, as shown in FIG.
The writing of the image signal to 2 is stopped. Then, after stopping the write enable signal, the process returns to (ST14) to continue the monitoring of the current position of the transfer head.

That is, in the above processing, the storage unit 13
A pixel for outputting an image is selected based on the information about the capture range in the one mode setting information written in, and the image signal including the image of at least one electronic component is output from the selected pixel. Then, the image signal output from the pixel is corrected based on the image quality adjustment parameter in one image pickup information.

Here, the take-in end position X2 is also set as a mode switching position, and if it is detected that the transfer head 8 has reached X2, the equipment control unit 25 instructs the camera control unit 12 to operate. And outputs a mode switching signal indicating the timing of switching the capture range. As a result, the camera control unit 12 switches between the reference memory and the non-reference memory of the storage unit 13 (ST17). That is, as shown in FIG. 8, at the timing when the mode switching position X2 is reached, the second storage area M2 is set as the reference memory and the first storage area M1 becomes the non-reference memory.

Then, according to the capture range (2) of the mode (2) stored in the second storage area M2 (see FIG. 5),
An image signal (including an image of the electronic component Pc (see FIG. 4)) is output from the line sensor 11. The image quality of the output image signal is corrected by the image output unit 14 by the image quality adjustment parameters (gain (2), offset (2)) of the mode (2), and then the image input unit 2
Output for 1.

Then, the count of the mode switching counter MK is incremented by 1 (ST18), and it is judged whether or not there is the next mode (MK) (ST19). Here, MK = 3, and this mode (3) is set in the equipment control unit 2 in the next step.
5 is read from the data storage unit 26 and the camera control unit 12
Then, the camera control unit 12 writes the mode setting information of the mode (3) into the first storage area M1 which is a non-reference memory (ST20). After this, return to (ST14),
Continue monitoring the current position of the transfer head.

That is, in the above processing, a pixel for outputting an image is selected on the basis of the information on the capture range in the other one of the mode setting information written in the storage unit 13 in response to the mode switching signal from the outside. Then, an image signal including an image of at least one electronic component is output from the selected pixel. Then, the image signal output from the pixel is corrected based on the image quality adjustment parameter in the other one of the mode setting information.

Next, when it is detected that the transfer head 8 has reached the take-in start position X3, a write permission signal is output from the equipment control unit 25 to the image storage unit 22 (ST1.
5). After the write enable signal is output, (ST1
Returning to 4), the transfer head current position monitoring is continued. This write enable signal causes the transfer head 8 to move as shown in FIG.
The writing of the image signal output from the pixel 11 a of the line sensor 11 to the image storage unit 22 is started at the timing when the position of X becomes X3.

After that, if it is detected that the new mode switching position X4 has been reached, the camera control unit 12 is similarly operated.
A mode switching signal indicating the timing of switching the capture area is output to the camera control section 12 and the camera control section 12 switches the reference memory and the non-reference memory of the storage section 13 (ST1).
7). That is, as shown in FIG. 8, the mode switching position X4
The first storage area M1 is set as the reference memory again and the second storage area M2 becomes the non-reference memory at the timing of reaching.

Then, according to the capture range (3) of the mode (3) stored in the first storage area M1, the image signals (including the images of the electronic parts Pc and Pb (see FIG. 4)) are sent from the line sensor 11. Is output. Then, the output image signal is subjected to image quality correction by the image output unit 14 by the image quality adjustment parameters (gain (3), offset (3)) of the mode (3), and then the image signal is input to the image input unit 21. Is output. As a result, at the timing when the position of the transfer head 8 becomes X4, the pixel 11a of the line sensor 11 is
The output of the image signal output from the image storage unit 22 and output to the image storage unit 22 is switched to the mode (3).

Then, the count of the mode switching counter MK is incremented by 1 (ST18), and it is judged whether or not there is the next mode (MK) (ST19). Here, MK = 4, and the process proceeds to the next step. That is, the equipment control unit 25 reads the mode (4) from the data storage unit 26 and transmits it to the camera control unit 12, and the camera control unit 12 stores the mode setting information of the mode (4) in the second storage area which is a non-reference memory. Write to M2 (ST20). And after this (ST
Returning to 14), the transfer head current position monitoring is continued.

That is, in the above processing, the storage unit 13
The pixel for outputting the image is selected based on the information regarding the capture range (first capture range) of the mode (3) written in the first storage area M1 of the pixel, and at least 1 is selected from the selected pixels.
An image signal including an image of each electronic component is output. Then, the image signal output from the pixel is corrected based on the image quality adjustment parameter of the mode (3) (first image quality adjustment parameter).

While the image signal is being output, information about the capture range (second capture range) in the mode setting information of mode (4) and the image quality adjustment parameter (second image quality) of mode (4). Parameter for adjustment) equipment control unit 2
Receive from 5. Then, the information regarding the capture range (second capture range) in the mode setting information of the mode (4) received during the output of this image signal and the image quality adjustment parameter of the mode (4) (for the second image quality adjustment) Parameter) is written in the second storage area M2 of the storage unit 13.

Then, in response to the switching signal from the outside, the second
A pixel for outputting an image is selected based on the information about the capture range (second capture range) in the mode setting information of the mode (4) written in the memory area M2, and at least one of the selected pixels is selected. An image signal including an image of the electronic component is output. Then, the image signal output from the pixel is corrected based on the image quality adjustment parameter (second image quality adjustment parameter) of the mode (4).

After that, if it is detected in the transfer head current position monitoring that the new mode switching position X5 has been reached, a mode switching signal is output to the camera control unit 12, and thereby the camera control unit. 12 is a storage unit 13
The reference memory and the non-reference memory of (ST1
7). That is, as shown in FIG. 8, the mode switching position X5
The second storage area M2 is set as the reference memory again at the timing of reaching, and the first storage area M1 becomes the non-reference memory.

Simultaneously with the switching of the reference area, the output of the image signal output from the pixel 11a of the line sensor 11 and written in the image storage section 22 is switched to the mode (4). When it is detected in the transfer head current position monitoring that the loading end position X6 is reached, the write permission signal is stopped (ST16). As a result, the writing of the image signal to the image storage unit 22 is stopped as shown in FIG. Then, after stopping the write enable signal, the process returns to (ST14) to continue the monitoring of the current position of the transfer head.

Then, the count of the mode switching counter MK is incremented by 1 (ST18), and it is determined whether or not there is the next mode (MK) (ST19). Here, MK = 5, and in the next step, the mode setting information of mode (5) is written in the first storage area M1 which is a non-reference memory (ST20). After that, the process returns to (ST14) to continue monitoring the current position of the transfer head.

Simultaneously with the above processing, a new mode switching signal is output at the timing when the next mode switching position, X6, is reached. Then, by this mode switching signal, the reference memory and the non-reference memory are switched as shown in FIG. 8, and the first storage area M1 is set again as the reference memory. At the same time when the reference area is switched, the line sensor 11
The output of the image signal output from the pixel 11a is switched to the mode (5).

After that, writing of the image signal to the image storage unit 22 is started at the timing when the position of the transfer head 8 reaches the taking-in start position X7, and the writing is stopped at the taking-in end position X8. After this, if it is determined in (ST19) that there is no next mode (MK = 6), (ST
14), the transfer head current position monitoring is continued, and when the transfer head 8 reaches the image reading operation end position XE, the image reading process is ended and the process returns to the main flow of FIG.

As described above, in the image reading apparatus according to the present embodiment, even when a wide variety of electronic components are targeted, the information regarding the capturing range is updated for each electronic component to be imaged. Therefore, the output of the image signal from the pixel is not interrupted even while the range of the selected pixel is changed, so that the image reading time is not delayed and the image reading time is shortened to improve the image recognition efficiency. Can be improved.

(Second Embodiment) FIG. 9 is a block diagram showing a configuration of an electronic component mounting apparatus according to a second embodiment of the present invention, FIG.
0 is a flowchart of the image reading method according to the second embodiment of the present invention, and FIG. 11 is an explanatory diagram showing timings of writing mode setting information and image signals in the image reading method according to the second embodiment of the present invention.

First, the electronic component mounting apparatus will be described with reference to FIG. In FIG. 9, the overall control device 20 has the same configuration and function as those shown in the first embodiment, and the line sensor 1 of the imaging unit 19 similar to that of the first embodiment.
1, camera control unit 12, image output unit 14, and communication unit 1
6 is also the same as that of the first embodiment.

The image pickup section 19 has a storage section 130,
The storage unit 130 includes a memory M that is a plurality of storage areas.
(1), M (2), M (3) ... The mode setting information of the imaging information (see FIG. 5) described in the first embodiment is written in the memories M (1), M (2), M (3) ,.

This mode setting information is stored in the data storage unit 26 of the overall control device 20 as in the first embodiment, read by the equipment control unit 25, and the communication unit 2
4. The data is transmitted to the communication unit 16 of the imaging unit 19 via the data communication cable 17, and then written in the storage unit 130 by the camera control unit 12.

In writing the mode setting information,
The camera control unit 12 writes each mode setting information in the storage unit 130 in a predetermined order according to the mode order. That is,
In the memory M (1), the memory M (2), ..., The mode (1), the mode (2) ,. Then, when the camera control unit 12 receives the mode switching signal from the equipment control unit 25 and switches the information regarding the capture range referred to by the pixel selection unit 10, the modes are switched according to the order written in each memory. It has become.

Next, the image reading process will be described with reference to FIGS. This image reading process is a process of reading an image of the electronic component held by the transfer head 8 in the same manner as the process performed in (ST6) in the electronic component mounting method shown in the flowchart of FIG. 6 of the first embodiment. Is.

First, the mode switching counter MK = 2 is set (ST21). Next, the mode setting information of the imaging information is received from the equipment control unit 25, and all modes in the mounting turn of this time are stored in the memory group (M (1), M (2) ...
・) (ST22). At this time, as described above,
The modes (1), (2), ... Are sequentially written in the memories M (1), M (2) ,. That is, a plurality of pieces of mode setting information including information on the capture range and parameters for image quality adjustment are received, and the received mode setting information is written in the storage unit 130 in a predetermined order.

Next, the pixel selection unit 10 sets the reference memory for referring to the information regarding the capture range in the memory M (1) (ST23). As a result, as shown in FIG. 11, the mode (1) stored in the memory (1) at the timing when the transfer head 8 reaches the image reading operation start position XS.
An image signal is output from the line sensor 11 in accordance with the capture range (1) (see FIG. 5). Then, the output image signal is subjected to image quality correction by the image output unit 14 by the image quality adjustment parameters (gain (1), offset (1)) of the mode (1), and then the image input unit 2
Output for 1.

Upon completion of the above processing, the line sensor 11 becomes ready for image capturing, and in this state, the equipment control section 25 monitors the current position of the transfer head 8 for detecting the image capture start timing. Perform (ST24).

If it is detected that the transfer head 8 has reached the loading start position X1 during this monitoring, the equipment control unit 2
5 outputs a write permission signal to the image storage unit 22 (S
T25). After outputting the write enable signal, (ST
Returning to 24), the transfer head current position monitoring is continued.

With this write enable signal, as shown in FIG. 11, the image signal (including the image of the electronic component Pa (FIG. 4) output from the pixel 11a of the line sensor 11 at the timing when the position of the transfer head 8 becomes X1. ) Is started to be written in the image storage unit 22. When it is detected in the transfer head current position monitoring that the loading end position X2 is reached, the write enable signal is stopped (ST
26). As a result, as shown in FIG.
The writing of the image signal to 2 is stopped. Then, after stopping the write enable signal, the process returns to (ST24) to continue the monitoring of the current position of the transfer head.

That is, in the above processing, the storage unit 13
A pixel for outputting an image is selected based on the information about the capture range in the first mode (1) in the written order among the mode setting information written in 0, and at least one electron is selected from the selected pixel. An image signal including the image of the part is output. Then, the image signal output from the pixel is corrected based on the image quality adjustment parameter in the first mode (1).

Here, the taking-in end position X2 is also set as the mode switching position, and if it is detected that the transfer head 8 has reached X2, the equipment control unit 25 instructs the camera control unit 12 to operate. To output the mode switching signal. As a result, the camera control unit 12 switches the reference memory of the storage unit 130 to the memory M (MK = 2) (ST27). As a result, as shown in FIG. 11, the memory M (2) is set as the reference memory at the timing when the mode switching position X2 is reached, and the capture range (2) of the mode (2) stored in the memory M (2) is set. According to (see FIG. 5), the image signal is output from the line sensor 11. The image quality of the output image signal is corrected by the image output unit 14 by the image quality adjustment parameters (gain (2), offset (2)) of the mode (2), and then the image input unit 2
Output for 1. Next, the mode switching counter M
The count of K is incremented by 1 (ST28), and (ST2
Returning to 4), the transfer head current position monitoring is continued.

That is, in the above processing, a pixel for outputting an image is received on the basis of the information regarding the capture range (2) in the mode (2) following the leading mode (1) in response to the switching signal from the outside. An image signal is output from the selected pixel. Then, the image signal output from the pixel is corrected based on the image quality adjustment parameter in the next mode (2).

Then, when it is detected that the transfer head 8 has reached the take-in start position X3, a write permission signal is output from the equipment control unit 25 to the image storage unit 22 (ST2).
5). After outputting the write enable signal, (ST2
Returning to 4), the transfer head current position monitoring is continued. By this write enable signal, writing of the image signal output from the pixel 11a of the line sensor 11 to the image storage unit 22 is started at the timing when the transfer head 8 becomes X3 as shown in FIG.

Thereafter, new mode switching positions X4, X
If the arrival at 5 or X6 is detected, the mode switching signal is output to the camera control unit 12 each time,
Accordingly, the camera control unit 12 similarly switches the reference memory of the storage unit 130 to the memory M (MK) (ST2).
7). As a result, as shown in FIG. 11, the reference memories are sequentially switched in the writing order at the timing when each mode switching position is reached. By switching the reference memory, the output mode of the image signal is sequentially switched, and the image is captured in each mode.

Then, returning to (ST24), the transfer head current position monitoring is continued, and when the transfer head 8 reaches the image reading operation end position XE, the image reading process is ended and the main flow of FIG. Return. In the second embodiment, since all the modes forming the image pickup information are stored in advance, it is not necessary to perform the process of writing the image pickup information in the storage unit during image output, and the image reading process can be performed more easily. It can be done efficiently.

In the first and second embodiments,
Although the example in which the image pickup unit 19 as the image reading device is used for the electronic component recognition application in the electronic component mounting device is shown, the application example of the image reading device is not limited to this, and a plurality of types of image pickup objects having different sizes are picked up. It can also be used for targeted general purposes.

The present invention can be applied to an image sensor other than the CMOS type, which can select an arbitrary pixel and output an image signal.

[0104]

According to the present invention, a plurality of pieces of information regarding the image capturing range of the image pickup device are stored, and the pixel selecting section refers to the information regarding one capturing range to determine the pixel for outputting the image signal. Since the image signal is output only from the selected pixel and the switching signal from the outside is received and the information regarding the capture range referred to by the pixel selection unit is switched to the information regarding another capture range, It is possible to shorten the image reading time and improve the efficiency of image recognition.

[Brief description of drawings]

FIG. 1 is a perspective view of an electronic component mounting apparatus according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a control system of the electronic component mounting apparatus according to the first embodiment of the present invention.

FIG. 3 is a partial perspective view of a camera of the image reading apparatus according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing an image capturing range by the image reading apparatus according to the first embodiment of the present invention.

FIG. 5 is a diagram showing image pickup information of the image reading apparatus according to the first embodiment of the present invention.

FIG. 6 is a flowchart of an electronic component mounting method by the electronic component mounting apparatus according to the first embodiment of the present invention.

FIG. 7 is a flowchart of the image reading method according to the first embodiment of the present invention.

FIG. 8 is an explanatory diagram showing timings of writing mode setting information and an image signal in the image reading method according to the first embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of an electronic component mounting apparatus according to a second embodiment of the present invention.

FIG. 10 is a flowchart of an image reading method according to the second embodiment of the present invention.

FIG. 11 is an explanatory diagram showing timings of writing mode setting information and an image signal in the image reading method according to the second embodiment of the present invention.

[Explanation of symbols]

3 substrates 8 Transfer head 9 cameras 10 pixel selection section 11 line sensor 11a pixel 12 Camera control unit 13 Storage 14 Image output section 16 Communication unit 19 Imaging unit 20 Overall control device 21 Image input section 22 Image storage 23 Recognition processing unit 25 Equipment control section 26 Data storage M1 first storage area M2 second storage area Pa, Pb, Pc, Pd Electronic parts M (1), M (2) ... Memory

Claims (12)

[Claims] 1. An image reading apparatus for outputting an image picked up by an image pickup device having a plurality of pixels to the outside as an image signal, and a communication section for receiving information on an image capturing range of the image pickup device from the outside. A storage unit for storing a plurality of pieces of information on the capturing range; a writing unit for writing information on the capturing range received by the communication unit to the storage unit; and a single capturing range stored on the storage unit. A pixel selecting section that selects an image signal that outputs an image signal by referring to information regarding the pixel information and outputs an image signal only from the selected pixel; and an image output section that outputs the image signal output from the pixel to the outside. It is characterized by comprising switching means for receiving a switching signal from the outside and switching the information on the capture range referred to by the pixel selection section to the information on another capture range stored in the storage section. Image reading apparatus according to. 2. The storage section includes a first storage area and a second storage area, and the pixel selection section selects the pixel by referring to information about a capture range stored in the first storage area,
The writing unit writes the information about the capture range newly received by the communication unit to the second storage area, and when the switching unit receives the switching signal, the information about the capture range referred to by the pixel selection unit is stored in the second storage region. 2. The information on the capture range stored in the second storage area is switched to, and the storage area in which the writing means newly writes the information on the capture range is switched to the first storage area. Image reading device. 3. The pixel selecting unit writes the information about a plurality of capturing ranges received by the writing unit in a predetermined order in the storage unit, and the switching unit receives the switching signal from the outside. The image reading apparatus according to claim 1, wherein the information regarding the capture range referred to by is switched in the predetermined order. 4. An image reading apparatus for outputting an image picked up by an image pickup device having a plurality of pixels to the outside as an image signal, wherein information relating to an image pickup range of the image pickup device and image quality adjustment parameters are provided. A communication unit that receives image pickup information including the image pickup information from outside, a storage unit that stores the plurality of pieces of image pickup information, a writing unit that writes the image pickup information received by the communication unit to the storage unit, and one storage unit that is stored in the storage unit. A pixel selection unit that refers to the information regarding the capture range in the imaging information, selects a pixel that outputs an image signal, and outputs the image signal only from the selected pixel, and image quality adjustment in the one imaging information The image output unit that corrects the image signal output from the pixel by referring to the parameter for output and outputs the image signal to the outside, and the pixel selection unit and the image output unit that receive the switching signal from the outside. Image reading apparatus characterized by the imaging information comprising a switching means for switching to other imaging information stored in the storage unit to be. 5. The storage section includes a first storage area and a second storage area, and the pixel selection section selects the pixel by referring to information about a capture range stored in the first storage area,
The image output unit corrects the image signal output from the pixel by referring to the image quality adjustment parameter stored in the first storage area and outputs the corrected image signal to the outside, and the writing unit newly receives the communication unit. The captured image information is written in the second storage area, and when the switching means receives the switching signal, the information regarding the capture range referred to by the pixel selection section and the image quality adjustment parameter referred to by the image output section are set to the second parameter Two
5. The information on the capture range stored in the storage area and the parameter for image quality adjustment are switched, and the storage area for writing the newly received imaging information by the writing unit is switched to the first storage area. The image reading device described. 6. The writing unit stores a plurality of image pickup information received by a communication unit in a predetermined order in the storage unit, and the switching unit receives the switching signal from the outside, the pixel selection unit and the pixel selection unit. The image reading apparatus according to claim 4, wherein the image pickup information referred to by the image output unit is switched in the predetermined order. 7. An image pickup device having a plurality of pixels, a communication section for receiving data from the outside, a storage section for storing the received data, and a pixel for outputting an image signal among the plurality of pixels is selected. An image reading method in an image reading apparatus having a pixel selection unit that outputs an image signal only from the selected pixels, the method comprising: receiving a plurality of pieces of information regarding an image capturing range of the image sensor; Writing information about the capture range to the storage unit; selecting a pixel that outputs an image signal based on the information about one capture range written in the storage unit, and outputting the image signal from the selected pixel And a pixel for outputting an image based on the information regarding the other one of the capturing ranges written in the storage unit in response to a switching signal from the outside. Image reading method characterized by comprising the step of outputting an image signal from the pixel. 8. An image pickup device having a plurality of pixels, a communication unit for receiving data from the outside, a storage unit having a first storage area and a second storage area for storing the received data, and the plurality of storage units. An image reading method in an image reading apparatus including a pixel selection unit that selects an image signal that outputs an image signal from among the pixels and outputs the image signal only from the selected pixel. Receiving information regarding the capture range, writing the received information regarding the first capture range in the first storage area, and relating to the first capture range written in the first storage area Selecting a pixel for outputting an image based on the information, outputting an image signal from the selected pixel, and setting a second capturing range of the image by the image sensor during the step of outputting the image signal. The method comprising the steps of: receiving information,
The second signal received during the step of outputting the image signal
Writing information about the capture range to the second storage area, and a pixel that outputs an image based on the information about the second capture range written to the second storage area in response to a switching signal from the outside. And outputting an image signal from the selected pixel, the image reading method. 9. An image pickup device having a plurality of pixels, a communication section for receiving data from the outside, a storage section for storing the received data, and a pixel for outputting an image signal among the plurality of pixels is selected. An image reading method in an image reading apparatus having a pixel selection unit that outputs an image signal only from the selected pixels, the method comprising: receiving a plurality of pieces of information regarding an image capturing range of the image sensor; An image is output based on the step of writing the information about the capture range in the storage unit in a predetermined order, and the information about the first capture range in the order among the information about the capture range written in the storage unit. The step of selecting a pixel and outputting an image signal from the selected pixel, and receiving the switching signal from the outside, receiving the information regarding the next capturing range of the information regarding the leading capturing range. Image reading method selects a pixel that outputs the image, characterized in that it comprises a step of outputting an image signal from the selected pixels based on. 10. An image pickup device having a plurality of pixels, a communication section for receiving data from the outside, a storage section for storing the received data, and a pixel for outputting an image signal among the plurality of pixels. And an image reading method in an image reading apparatus including a pixel selection unit that outputs an image signal only from the selected pixel and an output unit that corrects and outputs the image signal. Receiving a plurality of imaging information including parameters for adjustment, writing the received imaging information in the storage unit,
A step of selecting a pixel to output an image based on information about a capture range in one imaged information written in the storage unit, and outputting an image signal from the selected pixel;
A step of correcting the image signal output from the pixel based on a parameter for image quality adjustment in the one image pickup information, and another one of the image pickups written in the storage section in response to a switching signal from the outside. Selecting a pixel to output an image based on the information about the capture range in the information, and outputting an image signal from the selected pixel, and based on the image quality adjustment parameter in the other one of the image pickup information And a step of correcting the image signal output from the pixel. 11. An image sensor having a plurality of pixels, a communication section for receiving data from the outside, a storage section having a first storage area and a second storage area for storing the received data, and the plurality of storage sections. Image reading in an image reading apparatus including a pixel selection unit that selects a pixel that outputs an image signal from among the pixels and outputs the image signal only from the selected pixel, and an output unit that corrects and outputs the image signal A method of receiving information about a first capture range and a first parameter for image quality adjustment; and receiving the received information about the first capture range and a parameter for first image quality adjustment. Writing to the first storage area, and selecting a pixel to output an image based on the information about the first capture range written to the first storage area, and outputting an image signal from the selected pixel. A step of correcting the image signal output from the pixel based on the first image quality adjustment parameter, and information regarding a second capture range during the step of outputting the image signal and the second A step of receiving a parameter for image quality adjustment, a step of writing information on the second capture range and a second parameter for image quality adjustment received during the step of outputting the image signal in the second storage area. A step of receiving a switching signal from the outside and selecting a pixel for outputting an image based on the information about the second capturing range written in the second storage area, and outputting the image signal from the selected pixel, The second
An image reading method, comprising the step of correcting the image signal output from the pixel based on the image quality adjustment parameter. 12. An image pickup device having a plurality of pixels, a communication section for receiving data from the outside, a storage section for storing the received data, and a pixel for outputting an image signal among the plurality of pixels. An image reading method in an image reading apparatus including a pixel selection unit that outputs an image signal only from the selected pixels, the step of receiving a plurality of pieces of image pickup information including information regarding a capture range and image quality adjustment parameters And a step of writing the received imaging information in the storage unit in a predetermined order, and based on information regarding a capture range in the imaging information at the head of the order among the imaging information written in the storage unit. Selecting a pixel for outputting an image and outputting an image signal from the selected pixel,
A step of correcting an image signal output from the pixel based on a parameter for image quality adjustment in the head image pickup information; and a step of receiving image information next to the head image pickup information by receiving a switching signal from the outside. Selecting a pixel to output an image based on the information about the capture range of the pixel, outputting an image signal from the selected pixel, and outputting from the pixel based on an image quality adjustment parameter in the next imaging information. An image reading method comprising a step of correcting an image signal.