WO2017113874A1

WO2017113874A1 - Board card error detection method and system

Info

Publication number: WO2017113874A1
Application number: PCT/CN2016/098235
Authority: WO
Inventors: 陈振安
Original assignee: 广州视源电子科技股份有限公司
Priority date: 2015-12-28
Filing date: 2016-09-06
Publication date: 2017-07-06
Also published as: CN105631878A

Abstract

A board card error detection method and system. The method comprises the following steps: acquiring image data of a board card (S100); performing matching analysis on the image data and image data of a standard board card to generate and store differential image information about the board card (S110); and sending the differential image information to a handheld device, so that the handheld device is enabled to generate a differential image used for board card error detection according to the differential image information (S120). In the present method and system, a user performs error detection on a board card according to a differential image displayed on a handheld device and the actual situation of the board card; and since the user can conveniently move the handheld device without manually taking the board card to be compared with a standard board card, the convenience and efficiency of board card error detection are increased.

Description

Board error detection method and system

Technical field

The present invention relates to the field of quality monitoring technologies, and in particular, to a card error detection method and system.

Background technique

The board is a very important component in various electronic devices and devices. It is often used for data acquisition and output, and its quality directly affects the performance of electronic devices and devices. In the current industrial production, the quality of the board is usually measured by the worker's hand-held board, and compared with the picture of the standard board or the standard board to find out the difference between it and the standard board. And then judge the quality of the board according to the difference. However, in the actual production process of the board, the temperature of the board after the reflow process is still high, which is not convenient for the worker to take the board, which makes it impossible to detect the quality of the board in time. Compared with the standard board, the board is not only cumbersome, but also easy to cause visual fatigue of the workers, which leads to the inaccurate and timely detection of defects and errors in the board, which brings hidden dangers to the quality of the board.

Summary of the invention

Based on this, it is necessary to provide a board error detection method and system for the problem of inconvenient board detection and low detection efficiency, so as to improve the efficiency of board error detection.

To achieve the above object, the present invention adopts the following technical solutions:

A method for detecting a card error, the method comprising the following steps:

Obtain image data of the board;

Performing matching analysis on the image data and image data of the standard board to generate and store difference image information of the board;

Sending the difference image information to the handheld device,

So that the handheld device generates a difference image for the card error detection based on the difference image information.

A method for detecting a card error, the method comprising the following steps:

Receiving difference image information sent by the processing device, wherein the difference image information is generated by the processing device after performing matching analysis on image data of the card and image data of the standard card;

A difference image for the card error detection is generated based on the difference image information.

Accordingly, the present invention provides a card error detecting system, the system comprising a processing device, the processing device comprising:

An obtaining unit, configured to acquire image data of the board;

a matching analysis unit, configured to perform matching analysis on the image data and image data of the standard board, and generate and store difference image information of the board;

And a sending unit, configured to send the difference image information to the handheld device, so that the handheld device generates a difference image for the card error detection according to the difference image information.

A card error detection system, the system comprising a handheld device, the handheld device comprising:

a receiving unit, configured to receive the difference image information sent by the processing device, where the difference image information is generated by the processing device after performing matching analysis on the image data of the card and the image data of the standard card;

And a display unit configured to generate a difference image for the card error detection according to the difference image information.

Meanwhile, the present invention also provides a card error detecting system, the system comprising an image capturing device, the processing device as described above, and the handheld device as described above, wherein the camera device, the processing device and the handheld device are sequentially connected ,

The image capturing device transmits image data of the acquired board to the processing device, and the processing device receives the image data and performs matching analysis on the image data and the image data of the standard card to obtain the board. a difference image information of the card, the processing device stores the difference image information and transmits the difference image information to the handheld device, the handheld device receiving the difference image information and generating for the difference image information The difference image of the card error detection.

The above-mentioned board error detection method obtains a difference image for board error detection by performing matching analysis on the image data of the board to be tested and the image data of the standard board, and realizes between the board containing the board and the standard board by using the handheld device. Differences in the display of the difference image, so the user can follow the handheld device The displayed difference image and the actual situation of the board detect the card incorrectly, and the user can conveniently move the handheld device when the user uses the handheld device for card error detection, without manually picking up the card and the standard board. The card is compared, so the error detection of the card according to the difference image displayed on the handheld device has high convenience, and the efficiency of the card error detection is further improved, and is particularly suitable for the production in the card industry. Monitoring of board quality during the process.

DRAWINGS

1 is a schematic flow chart of a method for detecting a card error in one embodiment;

2 is a schematic flow chart of a method for detecting a card error in another embodiment;

3 is a schematic structural diagram of a card error detecting system in one embodiment;

4 is a schematic structural diagram of a card error detecting system in another embodiment;

FIG. 5 is a schematic structural diagram of a card error detecting system in another embodiment; FIG.

6 is a schematic diagram showing the workflow of a processing device in one embodiment;

FIG. 7 is a schematic diagram showing the workflow of the handheld device in one embodiment.

detailed description

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

In one embodiment, referring to the flow diagram of the card error detection method shown in FIG. 1, the board error detection method includes the following steps:

S100 acquires image data of the board;

S110 performs matching analysis on the image data and image data of the standard board, and generates and stores difference image information of the board;

S120 transmits the difference image information to the handheld device, so that the handheld device generates a difference image for the card error detection according to the difference image information.

Specifically, the image of the board is taken and the analog signal of the board image is converted into a processable digital signal to form image data corresponding to the board and the image data is acquired, wherein the image of the board can be captured by an industrial camera. It is realized by a device with image acquisition function such as a camera and a scanner.

After acquiring the image data of the board, matching the image data of the board and the image data of the standard board Analyze, generate and store difference image information for the board. As a specific implementation manner, when performing matching analysis on the image data of the acquired board and the image data of the standard board, it may be implemented according to image recognition technology based on image matching. In the field of image recognition based image recognition technology, image recognition methods can be implemented by using various image matching methods, such as a relation structure based matching method, a matching method combined with a specific theoretical tool, a matching method based on gray information, and a sub-pixel based. The matching method of the content feature and the matching method based on the content feature, according to the image matching technology based on image matching, the image data of the card and the image data of the standard card are matched and analyzed, and the difference image information of the card is generated and stored, wherein When the image data of the board matches the image data of the standard board, the difference image information only includes the image data of the board, and only the image data of the board is sent to the handheld device; when the image data of the board and the standard board When the image data of the card does not match, the difference image information includes image data of the board and difference position information between the board and the standard board, and the difference position information reflects between the image of the board and the image of the standard board. The location of the difference, at this time, the image data of the board and the difference position information are sent to the handheld device .

The handheld device in this embodiment refers to an electronic device or device that can be conveniently held on the hand, such as various mobile terminals capable of image display, for receiving difference image information and generating for use according to difference image information. The difference image of the board error detection. When the analysis result of the image data of the board and the image data of the standard board are matched, the image data of the board is transmitted to the handheld device, and the handheld device generates a difference image according to the image data, and the difference image at this time is The image of the board; in the case that the analysis result of the image data of the board and the image data of the standard board is not matched, the image data of the board and the difference position information are transmitted to the handheld device, and the handheld device according to the image data and The difference position information generates a difference image, and the difference image at this time includes not only the image of the board but also the specific difference position on the image of the board.

The card error detection method of the embodiment obtains a difference image for the card error detection by performing matching analysis on the image data of the board to be detected and the image data of the standard board, and implements the card and the standard by using the handheld device. The difference between the boards is displayed by the difference image, so the user can perform error detection on the board according to the difference image displayed on the handheld device and the actual situation of the board, and at the same time, because the user performs the board error detection by using the handheld device, It is convenient to move the handheld device without manually picking up the card and comparing it with the standard board, so according to the difference map displayed on the handheld device For example, the error detection of the board is highly convenient, and the efficiency of the board error detection is further improved, and is particularly suitable for monitoring the quality of the board during the production process of the board industry.

In another embodiment, referring to FIG. 2, the method for detecting a card error includes the following steps:

The S200 receives the difference image information sent by the processing device, where the difference image information is generated by the processing device after performing matching analysis on the image data of the card and the image data of the standard card;

S210 generates a difference image for the card error detection according to the difference image information.

Specifically, in this embodiment, the handheld device is used as the main body to receive the difference image information, where the difference image information is generated by the processing device after performing matching analysis on the image data of the card and the image data of the standard card; After the image information, the difference image for the card error detection is generated according to the difference image information, and in the case where the analysis result of the image data of the board and the image data of the standard board is matched, the difference image information only includes the board. Image data, at this time, a difference image is generated according to the difference image information, and the difference image is an image of the card; in the case where the analysis result of the image data of the card and the image data of the standard card does not match, the difference image information includes The image data of the board and the difference position information between the board and the standard board. The difference position information reflects the position of the difference between the image of the board and the image of the standard board. At this time, the difference image information is generated. a difference image, which generates a difference image based on the difference image information, and the difference image includes not only the image of the board but It includes a display position of the specific differences in the image on the board.

The card error detecting method of the embodiment generates the difference image for the card error detection by using the difference image information generated by the matching analysis of the image data of the board and the image data of the standard board by the processing device, and realizes the inclusion board The difference between the card and the standard board is displayed, so the user can detect the card according to the difference image and the actual situation of the board, without having to manually pick up each board and standard board to be tested. The card is compared, and when the actual image of the card to be detected is different from the image of the standard card, the displayed difference image includes the specific difference position of the two, and the user can perform targeted detection according to the difference image. Thereby improving the efficiency and accuracy of board error detection.

As a specific implementation manner, the difference position of the board relative to the standard board is displayed in high brightness or blinking according to the difference image information. According to the image data of the board and the map of the standard board Like the difference image information of the data generation board, the difference image information includes both the image data of the board itself and the difference position information of the board relative to the standard board, wherein the image data of the board reflects each board The image of the component and its position, solder joints, etc., and the difference position information refers to the difference position of the image of the board relative to the standard board image obtained by analysis, such as coordinate information of the difference position, pixel information, etc., When the difference image information of the board is displayed, the difference position of the board relative to the standard board is displayed in high brightness or blinking according to the difference position information. Since the difference position of the board relative to the standard board is high-brightness display or flashing display, it is convenient for the user to quickly find the specific position of the difference point on the board, thereby avoiding the search for the difference point of the entire image of the board. Greatly improve the efficiency and accuracy of board error detection.

As a specific implementation manner, the process of receiving the difference image information and generating the difference image for the card error detection according to the difference image information includes: determining whether the to-be-confirmed queue of the received difference image information is empty, and if yes, according to the difference image The information generates a difference image for board error detection, otherwise, it waits to receive the difference image information until the queue to be confirmed is empty. In this embodiment, before receiving the difference image information, it is first determined whether the queue to be confirmed for receiving the difference image is empty. If the queue to be confirmed is empty, it indicates that there is no difference image information to be displayed at this time, so the difference can be received. And generating image according to the difference image information for the difference image of the card error detection; if the queue to be confirmed is not empty, indicating that the difference image information is being confirmed or waiting for confirmation at this time, and therefore waiting to receive the difference image information at this time Until the queue to be confirmed is empty, that is, until the queue to be confirmed is empty, the difference image information can be received again. In the present embodiment, before determining the difference image information, it is first determined whether the queue to be confirmed is empty, and determining whether to receive the difference image information according to the determination result, so even if a plurality of pieces of difference image information corresponding to the plurality of boards are sequentially generated, In the following, the plurality of difference image information can be sequentially displayed, and the difference image generated according to the previously received difference image information is not covered by the difference image information received later, thereby implementing the one-by-one detection of the card. Avoid user's missed detection and misdetection of the board.

As a specific implementation manner, the alarm information is generated when the image data of the board does not match the image data of the standard board. For example, when the image data of the analysis board and the image data of the standard board do not match, the alarm information is generated at this time, and corresponding light alarm or sound alarm can be performed according to the alarm information, and the user can directly determine the matching analysis according to the alarm. As a result, it is judged that the board needs to be made. Make further confirmation. In the embodiment, by alerting the analysis result that the image data of the board and the image data of the standard board do not match, the user may be promptly reminded that the board may have an error, so that the user can perform error detection on the board as soon as possible. For the board whose image data matches the image data of the standard board, it is not necessary to manually confirm whether there is an error, and therefore, the alarm can reduce the time consuming of the board error detection, thereby improving the production efficiency of the board. In addition, when the image data of the board matches the image data of the standard board, the user can also be reminded by light or sound, thereby helping the user to quickly analyze whether there is a difference between the board and the standard board.

As a specific implementation manner, when receiving the correct analysis instruction input by the user, storing the corresponding difference image information according to the analysis correct instruction to the first database; when receiving the analysis error instruction input by the user, according to the analysis error instruction The corresponding difference image information is stored to the second database. In the present embodiment, taking the handheld device as an example, firstly, according to the difference image information sent by the processing device, the difference image of the card is displayed, and the user inputs an instruction to the handheld device according to the displayed difference image and the actual situation of the card, specifically, When the matching evaluation result of the user evaluation processing device is correct, that is, the board is actually different from the standard board, at this time, the user inputs an analysis correct instruction to the handheld device, and the instruction indicates that the detection result of the board error detection is correct, The handheld device receives the analysis correct instruction, and sends the analysis correct instruction to the processing device, and the processing device stores the difference image information corresponding to the card to the first database according to the analysis correct instruction sent by the handheld device; when the user evaluates the processing device matching The analysis result is wrong, that is, the board is actually the same as the standard board. At this time, the user inputs an analysis error instruction to the handheld device, which indicates that the detection result of the board error detection is wrong, and the handheld device receives the analysis error instruction. Sending an analysis error instruction to the processing device, and the processing device is rooted Analysis handheld device sent corresponding to the error command to the card information stored in the difference image to the second database. In this embodiment, according to the difference image displayed by the handheld device, the user can input different instructions (analyze the correct command or analyze the wrong command) to the handheld device according to the actual situation of the card, and the handheld device receives the received command. Feedback to the processing device, the processing device stores the difference image information of the card in the corresponding database according to different instructions, and finally realizes the classification and storage of the difference image information of each card, and the beneficial effects thereof are: Backtracking analysis of the quality of the board provides a reference for further improving the quality of the board production. On the other hand, it can provide a basis for the accuracy evaluation of the board error detection method. If the board is detected by the board error detection method, the suspected information is obtained. The more data Less, the accuracy of the board error detection method is higher. At the same time, the user can mark or store the error type of the card through the handheld device, without manual labeling of the wrong card, which simplifies the process of detecting the card error and saves human resources.

As a specific implementation manner, when the analysis error finger input by the user is received, the data flag type of the difference image information is modified according to the analysis error instruction; when the deletion instruction input by the user is received, the corresponding difference image is deleted according to the deletion instruction. information. Still taking the handheld device as an example, specifically, when the user evaluates the matching analysis result of the processing device as an error according to the difference image displayed by the handheld device and the actual situation of the card, the data flag of the difference image information of the card is required. When the type is modified, the user can input an analysis error instruction to the handheld device. At this time, the handheld device receives the analysis error instruction and sends it to the processing device, and the processing device sends the difference image information of the stored card according to the analysis error instruction. The data flag type is changed from the error type to the false positive or suspected type, thereby completing the distinction of the data mark types of different difference image information, and providing objective data for the backtracking analysis of the late card quality; when the user displays the difference according to the handheld device The image is combined with the actual situation of the board, and when the matching analysis result of the evaluation processing device is an error, that is, the actual situation of the board is the same as that of the standard board, and there are no component defects, solder joint defects, etc. on the board, and the user does not When such differential image information needs to be stored, at this time, the user can The deletion command is input to the handheld device, and the handheld device receives the delete command, and sends the delete command to the processing device, and the processing device deletes the difference image information corresponding to the card according to the delete command, thereby saving the storage space of the processing device and reducing the processing device. cost.

Accordingly, the present invention further provides a card error detecting system. In one embodiment, as shown in FIG. 3, the card error detecting system includes a processing device, and the processing device includes:

The acquiring unit 300 is configured to acquire image data of the board;

The matching analysis unit 310 is configured to perform matching analysis on the image data and the image data of the standard board, and generate and store difference image information of the board;

The sending unit 320 is configured to send the difference image information to the handheld device, so that the handheld device generates a difference image for the card error detection according to the difference image information.

Specifically, the image of the board is taken and the analog signal of the board image is converted into a processable digital signal to form image data corresponding to the board, and the acquiring unit 300 acquires the image data, wherein the image of the board can be captured. Equipment with image acquisition functions such as industrial cameras, cameras, and scanners achieve.

After the acquisition unit 300 acquires the image data of the board, the matching analysis unit 310 performs matching analysis on the image data of the board and the image data of the standard board, and generates and stores the difference image information of the board. As a specific implementation manner, the matching analysis unit 310 can perform the matching analysis on the image data of the acquired board and the image data of the standard board according to the image matching technology based on image matching. In the field of image recognition based image recognition technology, image recognition methods can be implemented by using various image matching methods, such as a relation structure based matching method, a matching method combined with a specific theoretical tool, a matching method based on gray information, and a sub-pixel based. The matching method and the matching method based on the content feature, the matching analysis unit 310 performs matching analysis on the image data of the card and the image data of the standard card according to the image matching technology based on the image matching, and generates and stores the difference image of the card. Information, wherein when the image data of the card matches the image data of the standard card, the difference image information only includes the image data of the card, and at this time, the sending unit 320 transmits only the image data of the card to the handheld device, so that The handheld device generates a difference image for the card error detection according to the difference image information; when the image data of the card does not match the image data of the standard card, the difference image information includes the image data of the card and the board and the standard board The difference between the location information, the difference location information reflects the map of the board The position of the difference from the image of the standard board, at this time, the transmitting unit 320 transmits the image data of the board and the difference position information to the handheld device, so that the handheld device generates the difference for the card error detection according to the difference image information. image. The handheld device in this embodiment refers to an electronic device or device that can be conveniently held on the hand, such as various mobile terminals capable of image display, for receiving difference image information and generating for use according to difference image information. The difference image of the board error detection.

The card error detection system of the embodiment performs matching analysis on the image data of the board to be detected and the image data of the standard board by the processing device, obtains a difference image for board error detection, and transmits the difference image information to the handheld The device realizes the display of the difference image including the difference between the board and the standard board by using the handheld device, so the user can perform error detection on the card according to the difference image displayed on the handheld device and the actual situation of the board, and at the same time When using the handheld device for card error detection, the handheld device can be conveniently moved without manually picking up the card and comparing with the standard card, so the card is error-detected according to the difference image displayed on the handheld device. It has high convenience and further improves the efficiency of board error detection, especially suitable for use in the board industry. Monitoring of board quality during production.

In another embodiment, referring to FIG. 4, a card error detection system includes a handheld device, and the handheld device includes:

The receiving unit 400 is configured to receive the difference image information sent by the processing device, where the difference image information is generated by the processing device performing matching analysis on the image data of the card and the image data of the standard card;

The display unit 410 is configured to generate a difference image for the card error detection according to the difference image information.

Specifically, in the embodiment, the handheld device includes a receiving unit 400 and a display unit 410 connected in sequence, wherein the receiving unit 400 receives the difference image information sent by the processing device, where the difference image information is the processing device through the card After the image data of the standard board and the image data of the standard board are matched and analyzed, the receiving unit 400 receives the difference image information, and sends the received difference image information to the display unit 410, and the display unit 410 generates the difference image information according to the difference image information. The difference image for the board error detection. In the case where the processing device matches the image data of the card and the image data of the standard card, the difference image information only includes the image data of the card, and at this time, the display unit 410 generates a difference image according to the difference image information, and the difference The image is the image of the board; in the case that the processing device does not match the image data of the board and the image data of the standard board, the difference image information includes the image data of the board and the board and the standard board. The difference position information between the difference position information reflects the difference between the image of the board and the image of the standard board. At this time, the display unit 410 generates a difference image according to the difference image information, and generates a difference according to the difference image information. The image, the difference image includes not only the image of the board, but also the display of the specific difference position on the image of the board. The handheld device of the card error detecting system displays the difference image information by using the difference image information generated by the matching analysis of the image data of the board and the image data of the standard board by the processing device, and generates the difference image information for generating the card error detection. The difference image, so the user can perform error detection on the card according to the difference image displayed by the handheld device and the actual situation of the board, without manually picking up each board to be tested and comparing it with the standard board, when the to-be-detected When the actual image of the board is different from the image of the standard board, the difference image displayed by the handheld device includes the specific difference position of the two, and the user can perform targeted detection according to the difference image, and the user can conveniently move Handheld device This improves the efficiency and accuracy of board error detection.

In another embodiment, referring to FIG. 5, the card error detecting system includes a camera device 500, a processing device 510, and a handheld device 520.

The imaging device 500, the processing device 510, and the handheld device 520 are sequentially connected,

The image capturing device 500 transmits the collected image data to the processing device 510; the processing device 510 receives the image data and performs matching analysis on the image data and the image data of the standard card to obtain difference image information of the card, and the processing device 510 stores the difference image. The information is transmitted to the handheld device 520, and the handheld device 520 receives the difference image information and generates a difference image for the card error detection based on the difference image information.

Specifically, the imaging device 500 collects image data of the card. The imaging device 500 captures an image of the card, and converts the analog signal of the card image into a digital signal that the processing device 510 can process, forms image data corresponding to the card, and outputs the image data to the processing device 510, wherein the imaging device 500 It can be an image capture function device such as an industrial camera, a video camera, and a scanner.

The processing device 510 performs matching analysis on the image data of the board collected by the camera 500 and the image data of the standard board to obtain difference image information of the board, and the processing device 510 stores the difference image information of the board and sends the difference image information to Handheld device 520. As a specific implementation manner, when the processing device 510 performs matching analysis on the image data of the card and the image data of the standard card, the processing device 510 can be implemented according to an image recognition technology based on image matching. In the field of image recognition based image recognition technology, image recognition methods can be implemented by using various image matching methods, such as a relation structure based matching method, a matching method combined with a specific theoretical tool, a matching method based on gray information, and a sub-pixel based. The matching method, the matching method based on the content feature, and the like, the processing device 510 performs matching analysis on the image data of the card and the image data of the standard card according to the image matching technology based on image matching, and generates and stores the difference image information of the card. Wherein, when the image data of the card matches the image data of the standard card, the difference image information only includes image data of the card, and the processing device 510 transmits only the image data of the card to the handheld device 520; when the card is When the image data does not match the image data of the standard board, the difference image information includes the image data of the board and the difference position information between the board and the standard board, and the difference position information reflects the image of the board and the standard board. The position of the difference between the images of the card, the processing device 510 will image the data of the card and Different position information is transmitted to the handheld device 520.

The handheld device 520 refers to an electronic device or device that can be conveniently operated on the hand, such as various mobile terminals capable of image display, and the handheld device 520 receives the difference image information transmitted by the processing device 510 and generates the difference image information according to the difference image information. A difference image for board error detection. In a case where the processing device 510 matches the analysis result of the image data of the card and the image data of the standard card, the processing device 510 transmits the difference image information of the card to the handheld device 520, and the handheld device 520 generates the difference image information according to the difference image information. The difference image, the difference image at this time is the image of the card; in the case that the processing device 510 does not match the analysis result of the image data of the card and the image data of the standard card, the processing device 510 will include the difference position information. The difference image information is sent to the handheld device 520, and the handheld device 520 generates a difference image based on the difference image information. The difference image at this time includes not only the image of the card but also the specific difference position on the image of the card.

The card error detection system implements communication between the processing device and the handheld device to display a difference image including a difference between the card and the standard card on the handheld device, and the user can display the difference image and the board according to the displayed on the handheld device. The actual situation of the card detects the error of the card. Because the user can easily move the handheld device when using the handheld device for card error detection, instead of manually picking up the card and comparing with the standard card, according to the handheld The difference image displayed on the device has high convenience for error detection of the board, and further improves the efficiency of board error detection, especially suitable for monitoring the quality of the board during the production process of the board industry. .

As a specific implementation manner, a wireless communication module is respectively disposed on the processing device and the handheld device, so as to realize real-time transmission of difference image information between the processing device and the handheld device, and at the same time, the setting of the wireless communication module is Handheld devices are more convenient for error detection of boards. The wireless communication module disposed on the processing device and the handheld device may be any one of a GSM module, a GPRS module, a Wifi module, or a Bluetooth module. As a specific implementation manner, when the processing device performs wireless communication with the handheld device, The wireless communication module can use any one of a GSM (Global System for Mobile Communication, GSM) module, a GPRS (General Packet Radio Service, GPRS) module, a Wifi (Wireless Fidelity, Wifi) module, or a Bluetooth module, wherein the GSM module, GPRS The module is suitable for long-distance wireless communication, while the Wifi module and Bluetooth module are suitable for short-distance wireless communication. The global mobile communication system module is a functional module that integrates a GSM radio frequency chip, a baseband processing chip, a memory, a power amplifier device, and the like on a circuit board, and can implement GSM. Network communication function, commonly used GSM module has Siemens TC35 and so on. The general packet radio service module is an important module for industrial-grade wireless data transmission. It can provide transparent TCP wireless long-distance data transmission or transparent UDP wireless long-distance data transmission through the GPRS network. There are many types of GPRS modules. Such as the WISMO series of Wave Company of France and the S series of Siemens. Wifi modules suitable for short-distance data transmission include TLN13UA06, WM001S-600, etc. The Bluetooth modules suitable for short-distance data transmission include Dell Bluetooth module and CSR Bluetooth module.

As an alternative solution, the processing device and the handheld device can also communicate in a wired manner, and the communication method is not easily interfered by the environmental electromagnetic field, which is beneficial to enhancing the reliability of the card error detection method.

In the actual board error detection process, the image data of the board is collected by the camera device, and the communication mode between the processing device and the handheld device can also be combined with wireless communication and wired communication to ensure the processing device and the handheld device. The communication between the two is normal. FIG. 6 is a schematic diagram of a workflow of a processing device, and the working process of the processing device adopting the above communication method specifically includes the following steps:

S600 processing device initialization;

S610 determines whether the camera device is normally accessed, and if so, proceeds to step S620; otherwise, returns to step S600;

S620 controls the camera device to collect image data of the board, and proceeds to step S630;

S630 determines whether the handheld device is wireless access; if yes, proceeds to step S650; otherwise, proceeds to step S640;

S640 determines whether the handheld device is wired access; if yes, proceeds to step S650; otherwise, returns to step S600;

The S650 matches the image data collected by the analysis camera device and the image data of the standard board, and proceeds to step S660;

S660 generates and stores the difference image information of the board, proceeds to step S670;

The S670 transmits the difference image information of the board to the handheld device.

The flow diagram shown in FIG. 6 specifically reflects an implementation of a practical processing device that fully considers the connection between the processing device and the camera device and the handheld device, and wireless access and wired connection to the handheld device. In both cases, analysis and judgment can be performed to ensure processing The communication between the handheld device and the handheld device is normal.

In a specific implementation manner, the processing device sends the difference image information of each card to the handheld device in the form of a queue, and the handheld device receives the difference image information of each card sent by the processing device, and according to the difference corresponding to each card The order of the image information and the alarm information is sequentially displayed. After each display of the handheld device, the user evaluates whether the matching analysis result of the processing device is correct according to the difference image displayed by the handheld device and the actual situation of the card. If correct, The user inputs an analysis correct command to the handheld device, otherwise inputs an analysis error command, and the handheld device transmits the command input by the user to the processing device. Specifically, referring to the workflow diagram of the handheld device shown in FIG. 7, the following steps are included:

S700 determines whether the queue to be confirmed is empty, and if so, proceeds to step S710; otherwise, repeats step S700;

S710 is displayed according to the difference image information, proceeds to step S720;

S720 receives the instruction that the user inputs according to the result of the difference image and the actual situation of the board, and proceeds to step S730;

S730 determines whether the instruction is to analyze the correct instruction, and if so, proceeds to step S740; otherwise, proceeds to step S750;

The S740 handheld device sends the analysis correct command to the processing device;

The S750 handheld device sends an analysis error command to the processing device.

During the process in which the handheld device sends the analysis correct command or the analysis error command to the processing device, the handheld device first sequentially sends the commands input by the user to the confirmed queue in sequence, and the processing device then correspondingly according to the instructions in the confirmed queue. The difference image information is processed. The communication between the handheld device and the processing device is completed in the form of a queue, which improves the accuracy and reliability of data transmission between the two.

As a specific implementation, the handheld device can be a mobile phone or a tablet. Since mobile phones and tablet computers are light in weight, easy to carry, safe and reliable, the use of a mobile phone or a tablet computer as a handheld device makes the handheld device more flexible and convenient, and has greater flexibility and convenience. It is important that the mobile phone or tablet as a handheld device can make full use of the powerful data transmission function of the mobile phone or the tablet computer, realizing the real-time and fast processing between the processing device and the mobile phone, or the processing device and the tablet computer in the card error detection method. Data transfer, thereby improving the board's Detection efficiency. Similar to a mobile phone or a tablet computer, a wearable device with a picture display function can also be applied to the card error detection method proposed by the present invention instead of the handheld device, thereby providing a feasible solution for further efficient card error detection. The way.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A method for detecting a card error, comprising the steps of:

Obtain image data of the board;

Performing matching analysis on the image data and image data of the standard board to generate and store difference image information of the board;

The difference image information is transmitted to the handheld device such that the handheld device generates a difference image for the card error detection based on the difference image information.
A method for detecting a card error, comprising the steps of:

Receiving difference image information sent by the processing device, wherein the difference image information is generated by the processing device after performing matching analysis on image data of the card and image data of the standard card;

A difference image for the card error detection is generated based on the difference image information.
The method for detecting a card error according to claim 2, further comprising the steps of:

And displaying, according to the difference image information, a high brightness display or a blinking display on a difference position of the board relative to the standard board.
The method for detecting a card error according to claim 2 or 3, wherein the process of generating a difference image for the card error detection based on the difference image information comprises:

Determining whether the queue to be confirmed that receives the difference image information is empty,

If yes, generating a difference image for the card error detection according to the difference image information,

Otherwise, the difference image information is waiting to be received until the queue to be confirmed is empty.
The method for detecting a card error according to claim 2 or 3, further comprising the steps of:

The alarm information is generated when the image data does not match the image data of the standard board.
The method for detecting a card error according to claim 2 or 3, further comprising:

When the correct instruction of the analysis input by the user is received, the corresponding difference image information is stored to the first database according to the analysis correct instruction;

When the analysis error instruction input by the user is received, the corresponding difference image information is stored to the second database according to the analysis error instruction.
The method for detecting a card error according to claim 2 or 3, further comprising the steps of:

When receiving an analysis error instruction input by the user, modifying the data flag type of the difference image information according to the analysis error instruction;

When the deletion instruction input by the user is received, the corresponding difference image information is deleted according to the deletion instruction.
A card error detecting system, comprising: a processing device, the processing device comprising:

An obtaining unit, configured to acquire image data of the board;

a matching analysis unit, configured to perform matching analysis on the image data and the image data of the standard board, and generate and store difference image information of the board;

And a sending unit, configured to send the difference image information to the handheld device, so that the handheld device generates a difference image for the card error detection according to the difference image information.
A card error detecting system, comprising: a handheld device, the handheld device comprising:

a receiving unit, configured to receive the difference image information sent by the processing device, where the difference image information is generated by the processing device after performing matching analysis on the image data of the card and the image data of the standard card;

And a display unit configured to generate a difference image for the card error detection according to the difference image information.
A card error detecting system, comprising: an image capturing device, the processing device according to claim 8, the handheld device according to claim 9,

The camera device, the processing device, and the handheld device are sequentially connected,

The image capturing device transmits image data of the acquired board to the processing device, and the processing device receives the image data and performs matching analysis on the image data and the image data of the standard card to obtain the board. a difference image information of the card, the processing device stores the difference image information and transmits the difference image information to the handheld device, the handheld device receiving the difference image information And generating a difference image for the card error detection based on the difference image information.