JP2023090299A - Imaging apparatus, method for controlling the same, and program - Google Patents

Abstract

To allow replacement of a recording medium and a battery depending on a photographic mode.SOLUTION: An imaging apparatus 100 can switch a photographic mode between a still image mode and a moving image mode, and comprises: a card lid open/close detection unit 120 that detects open/close of a card lid 21 being a lid of a recording medium storage unit that stores a first recording medium 105 and a second recording medium 106; and a battery lid open/close detection unit 121 that detects open/close of a battery lid 22 being a lid of a battery storage unit that stores a battery. When the detection unit 120 or the detection unit 121 detects that the card lid 21 or the battery lid 22 is open, if the imaging apparatus is in the still image mode, a microcomputer 108 turns off the power, and if in the moving image mode, does not turn off the power and continues the power-on state.SELECTED DRAWING: Figure 2

Description

The present invention relates to an imaging device, its control method, and a program.

2. Description of the Related Art In an imaging apparatus, if a recording medium or a battery is removed during data access to a recording medium such as a memory card, there is a risk that data recorded in the recording medium will be damaged or the recording medium itself will be destroyed.
Therefore, in order to prevent damage to data and destruction of the recording medium itself, if the lid of the recording medium housing portion for housing the recording medium or the lid of the battery housing portion for housing the battery is opened, the power supply of the imaging device itself is turned off. may be equipped with a function to turn off the
Japanese Patent Application Laid-Open No. 2002-200001 discloses a technique for switching power on and off based on whether or not an external memory is attached to an external memory storage unit and on the basis of open/close information of a lid provided in the external memory storage unit.

JP 2017-5620 A

In the case of recording photographed data on a recording medium for a long period of time, there is a situation where it is desirable to replace the recording medium or battery while continuing the recording. However, there is a problem that the recording medium and the battery cannot be replaced because the power of the imaging apparatus itself is turned off when the lid of the storage medium storage section or the lid of the battery storage section is opened.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to enable replacement of recording media and batteries depending on the shooting mode.

An image pickup apparatus of the present invention is an image pickup apparatus that can be switched between a plurality of shooting modes, and includes detecting means for detecting opening/closing of a cover, and a first shooting mode when the opening of the cover is detected by the detecting means. and control means for controlling to turn off the power in the case of , and not to turn off the power in the case of the second photographing mode.

According to the present invention, it becomes possible to replace the recording medium and the battery depending on the shooting mode.

1 is an external view of an imaging device according to a first embodiment; FIG. 1 is a block diagram showing the configuration of an imaging device according to a first embodiment; FIG. 4 is a flowchart showing processing executed by the imaging device in the first embodiment; 9 is a flowchart showing processing executed by an imaging device in the second embodiment; 10 is a flowchart showing processing executed by an imaging device in the third embodiment;

Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.
<First embodiment>
1A and 1B are external views of an imaging device 100 according to the first embodiment, where (a) is a front perspective view of the imaging device 100 and (b) is a rear perspective view of the imaging device 100. is.
The imaging device 100 has a camera body 1 . At the right front end of the camera body 1, a grip portion 2 is provided as a holding portion having a shape that is easy to grip with the right hand of the user when the imaging device 100 is held.

A ring-shaped mounting portion 3 is provided on the front surface of the camera body 1 for detachably mounting a lens unit 101 (see FIG. 2), not shown in FIG. A quick return mirror 4 that is moved up and down by an actuator (not shown) is installed inside the camera body 1 . Further, the mounting portion 3 is provided with a communication terminal 5 for communicating with the lens unit 101 side.

The eyepiece finder 6 provided on the upper back of the camera body 1 is a looking-in type for confirming the focus and composition of the optical image of the subject obtained through the lens unit 101 by observing a focusing screen (not shown). Finder. A display unit 7 provided on the rear surface of the camera body 1 displays images and various information. A display unit 8 outside the viewfinder provided on the upper surface of the camera body 1 displays various setting values such as shutter speed and aperture.

The camera body 1 is provided with various operating members. The shutter button 9 is an operation member for instructing photographing. The mode changeover switch 10 is an operation member for switching between various modes. The main electronic dial 11 is a rotary operation member for changing set values such as shutter speed and aperture. The power switch 12 is an operation member for switching ON and OFF of the power of the imaging device 100 . The sub-electronic dial 13 is a rotary operation member for moving a selection frame, feeding images, and the like. The cross key 14 is an operating member composed of a four-way key whose up, down, left, and right portions can be pressed, respectively, and can be operated according to the pressed portion. The SET button 15 is an operating member mainly used for determining selection items. The LV button 16 is an operation member for switching ON and OFF of a live view (hereinafter referred to as LV) as a menu button, and is used for instructing start and stop of moving image shooting (recording) in moving image mode. The enlargement button 17 is an operation member for turning ON/OFF the enlargement mode and changing the enlargement ratio in the enlargement mode in the live view display in the shooting mode. increase. The reduction button 18 is an operation member that reduces the magnification of the enlarged reproduced image and reduces the displayed image. The playback button 19 is an operation member for switching between shooting mode and playback mode. When the playback button 19 is pressed in the shooting mode, the playback mode is entered, and the latest image among the images recorded in the first recording medium 105 or the second recording medium 106 (see FIG. 2) is displayed on the display unit 7. can be displayed. The assign button 20 is an operating member to which other functions can be assigned. In the initial state, the assign button 20 functions as a button for displaying the status screen, and assigns other functions such as a function to change the setting contents or status related to video shooting and playback, a function to start video shooting (recording), and the like. be able to. Also, the function of displaying the status screen can be assigned to an assign button other than the assign button 20 . The status screen is a screen composed of a plurality of pages that displays settings or statuses related to moving image shooting and playback, the internal status of the digital camera, and the like.

A card cover 21 provided at the right end of the camera body 1 is a cover of a card slot, which is a recording medium storage section for storing the first recording medium 105 and the second recording medium 106 (see FIG. 2). A battery lid 22 provided in the lower right portion of the camera body 1 is a lid of a battery housing section for housing a battery which is a power supply section 119 (see FIG. 2). A terminal cover 23 provided at the left end of the camera body 1 is a cover that protects a connector (not shown) of a connection cable that connects with an external device.

FIG. 2 is a block diagram showing the configuration of the imaging device 100 according to the first embodiment.
The lens unit 101 causes an optical image of a subject to enter the imaging surface of the imaging device 102 . The lens unit 101 includes a fixed lens group for condensing light, a variable magnification lens group, an aperture, and a correction lens group. and perform the function of making adjustments.
The imaging device 102 is, for example, a CMOS (Complementary Metal Oxide Semiconductor) image sensor or the like, and converts incident light intensity into electric charge to generate an image signal. The imaging device 102 outputs, for example, a 4K image (horizontal 4096 images×vertical 2160 pixels) and an image signal of 60 frames per second.
The camera signal processing unit 103 performs predetermined processing on the image signal from the image sensor 102 and outputs image data.

The recording unit 104 records the moving image data or still image data encoded by the encoding processing unit 112 on the first recording medium 105 or the second recording medium 106 . The first recording medium 105 and the second recording medium 106 are memory cards, for example. The first recording medium 105 and the second recording medium 106 may be the same type of memory card or different types of memory cards. The recording unit 104 manages moving image files recorded on the first recording medium 105 and the second recording medium 106 according to a predetermined file system.

The operation unit 107 includes the various operation members described above, and operations thereof are input to the microcomputer 108 . In the operation unit 107, the shooting mode can be switched between a still image mode for shooting still images such as JPEG and a moving image mode for shooting moving images such as MP4 and MXF. In the moving image mode, it is possible to switch between the normal recording setting and the relay recording setting that continues recording over a plurality of recording media. In the normal recording setting, recording is performed on either the first recording medium 105 or the second recording medium, and recording is stopped when the free space is exhausted. In the relay recording setting, recording is performed on either the first recording medium 105 or the second recording medium, and when the free space is exhausted, recording is continued on the other recording medium.

A microcomputer 108 controls the entire imaging apparatus 100 .
The ROM 109 is, for example, a flash ROM or the like, and stores programs and the like executed by the microcomputer 108 .
A RAM 110 is a volatile memory used by the microcomputer 108 as a work area.
The DRAM 111 is used to temporarily store image data to be processed by the camera signal processing unit 103 , the recording unit 104 , and the encoding processing unit 112 and the result of the processing. Specifically, the camera signal processing unit 103 stores the developed image data in the DRAM 111 . The encoding processing unit 112 reads and compresses a series of image data stored in the DRAM 111 and writes the encoded video data back to the DRAM 111 . The recording unit 104 sequentially reads the encoded video data from the DRAM 111 and records it on the first recording medium 105 or the second recording medium 106 .

The encoding processing unit 112 converts the 4K video data into H.264. 264 or the like, and still image data is encoded into JPEG or the like. The encoding processing unit 112 encodes each frame of moving image data by inter-frame predictive encoding using a GOP (Group of Picture) as a compression unit.

The output unit 113 outputs the video signal in a predetermined digital format such as an HDMI (registered trademark) signal or an SDI signal to the outside.
The display control unit 114 controls the image display of the display unit 115, superimposes various setting menus, titles, and the time code generated by the time code generation unit 117 on the video data and displays them on the display unit 115 according to instructions from the microcomputer 108. do. The display unit 115 has, for example, a liquid crystal panel, and displays images under the control of the display control unit 114 . The display section 115 corresponds to the display section 7 shown in FIG.
Bus 116 is used to transmit data and control signals between the above-described elements of imaging device 100 .
The time code generator 117 generates a time code.

The power supply control unit 118 includes a battery detection circuit, a DC-DC converter, a switching circuit for switching blocks to be energized, and the like, and detects whether or not a battery is installed, the type of battery, and the remaining amount of the battery. Also, the power supply control unit 118 controls the DC-DC converter based on the detection results and instructions from the microcomputer 108, and supplies necessary voltage to each unit including the display unit 115 for a necessary period. The power supply unit 119 is a primary battery such as an alkaline battery or a lithium battery, or a secondary battery such as a NiCd battery, a NiMH battery, or a Li battery. A power supply unit 122 is a USB power supply, an AC adapter, or the like.

The card cover opening/closing detection unit 120 is detecting means for detecting opening/closing of the card cover 21 , and notifies the microcomputer 108 of the detection result of opening/closing of the card cover 21 . The battery lid opening/closing detection unit 121 is a detection means for detecting opening/closing of the battery lid 22 and notifies the microcomputer 108 of the detection result of the opening/closing of the battery lid 22 . The microcomputer 108 controls the power supply based on the photographing mode when the card cover opening/closing detection unit 120 detects that the card cover 21 is open and when the battery cover opening/closing detection unit 121 detects that the battery cover 22 is open. It instructs the unit 118 whether to turn on or turn off the power of the imaging device 100 to control turning on and off of the power.

The imaging device 100 according to this embodiment has a function of restoring a moving image file. If the recording medium 105 or 106 is removed from the card slot or the power supply is momentarily interrupted while recording the moving image file, the recording of the moving image file cannot be completed, the data is damaged, and the moving image cannot be played. A file is generated. However, in a moving image file, information necessary for data recovery is recorded in the file together with video data and audio data. Therefore, the recording unit 104 can restore the data up to the point immediately before the data corruption occurred in the damaged moving image file for which recording could not be completed normally. In other words, a video file can be repaired by discarding frames containing corrupted data. However, since a still image file is data of one frame, a file whose recording could not be completed normally cannot be recovered. In the moving image mode, even if the recording medium 105 or 106 is removed from the card slot or the battery is replaced during image recording, restoration processing can be performed. Alternatively, even if the battery lid is opened, the power supply continues to be turned on.

FIG. 3 is a flowchart showing processing executed by the imaging device 100 in the first embodiment. The flowchart of FIG. 3 is implemented by the microcomputer 108 executing a program stored in the ROM 109, for example.

In step S301, the microcomputer 108 determines whether opening of the card lid 21 or the battery lid 22 is detected via the card lid opening/closing detection unit 120 and the battery lid opening/closing detection unit 121. FIG. The microcomputer 108 waits until the opening of the card lid 21 or the battery lid 22 is detected, and when the opening of the card lid 21 or the battery lid 22 is detected, the process proceeds to step S302.

In step S302, the microcomputer 108 determines whether the shooting mode is the moving image mode. If the microcomputer 108 determines that the mode is the still image mode, the process proceeds to step S304. On the other hand, when the microcomputer 108 determines that the mode is the movie mode, the process proceeds to step S304.

In step S303, the microcomputer 108 instructs the power control unit 118 to turn off the power. If the card lid 21 or the battery lid 22 is opened during data access to the recording media 105 and 106, the power is turned off after the data access is completed.

In step S304, the microcomputer 108 continues to be powered on without turning off the power.

As described above, in the moving image mode in which there is a possibility of recording long-time shooting data on the recording media 105 and 106, even if the card lid 21 or the battery lid 22 is opened, the power does not turn off, and the recording media 105 and 106 or the battery can be removed. can be exchanged.

<Second embodiment>
Next, a second embodiment will be described. Note that the configuration and basic processing operations of the imaging apparatus 100 are the same as those of the first embodiment, and the following description will focus on the points of difference, omitting the description of the points in common with the first embodiment. .

FIG. 4 is a flowchart showing processing executed by the imaging device 100 in the second embodiment. The same reference numerals are given to the same processes as those in the flowchart of FIG. 3, and the description thereof will be omitted.
In step S302, when the microcomputer 108 determines that the recording mode is the moving image mode, the process proceeds to step S401.
In step S401, the microcomputer 108 determines whether or not relay recording is set. If the microcomputer 108 determines that the relay recording setting has not been made, the process proceeds to step S303 to turn off the power. If the card lid 21 or the battery lid 22 is opened during moving image recording, the moving image recording is stopped, and the power is turned off after data access to the recording media 105 and 106 is completed. On the other hand, if the microcomputer 108 determines that the relay recording setting has been made, the process proceeds to step S304, and the power is kept on without being turned off. As a result, it is possible to replace a recording medium on which no recording is being performed.

<Third Embodiment>
Next, a third embodiment will be described. Note that the configuration of the imaging apparatus 100 and the basic processing operation are the same as those of the first and second embodiments, and the description of the points in common with the first and second embodiments will be omitted below, and the points of difference will be omitted. Mainly explained.

FIG. 5 is a flowchart showing processing executed by the imaging device 100 in the third embodiment. The same reference numerals are assigned to the same processes as those in the flowcharts of FIGS. 3 and 4, and the description thereof will be omitted.
In step S401, when the microcomputer 108 determines that relay recording is set, the process proceeds to step S501.
In step S501, the microcomputer 108 determines whether power is being supplied from a power supply other than the battery housed in the battery housing. That is, the microcomputer 108 determines whether power is being supplied from the power supply unit 122 instead of the power supply unit 119 . When the microcomputer 108 determines that power supply from the power supply unit 122 is not being performed, the process advances to step S303 to turn off the power. If the card lid 21 or the battery lid 22 is opened during moving image recording, the moving image recording is stopped, and the power is turned off after data access to the recording media 105 and 106 is completed. On the other hand, if the microcomputer 108 determines that power is being supplied from the power supply unit 122, the process advances to step S304 to continue the power-on state without turning off the power. As a result, it is possible to replace the recording medium on which no recording is being performed and the battery, which is the power supply unit 119 .

As described above, the present invention has been described together with the embodiments, but the above-described embodiments merely show specific examples for carrying out the present invention, and the technical scope of the present invention is not construed in a limited manner. It should not be. That is, the present invention can be embodied in various forms without departing from its technical concept or main features.
(Other embodiments)
The present invention supplies a program that implements one or more functions of the above-described embodiments to a system or device via a network or a storage medium, and one or more processors in the computer of the system or device reads and executes the program. It can also be realized by processing to It can also be implemented by a circuit (for example, ASIC) that implements one or more functions.

21: card lid, 22: battery lid, 100: imaging device, 102: imaging device, 104: recording unit, 105: first recording medium, 106: second recording medium, 108: microcomputer, 109: ROM, 110: RAM , 111: DRAM, 118: Power supply control unit, 119: Power supply unit, 120: Card cover open/close detection unit, 121: Battery cover open/close detection unit, 122: Power supply unit

Claims (10)

An imaging device that can be switched to a plurality of shooting modes,
detection means for detecting opening and closing of the lid;
a control means for controlling to turn off the power in the case of the first photographing mode and not to turn off the power in the case of the second photographing mode when the opening of the lid is detected by the detecting means; An imaging device comprising: The control means is
When the opening of the lid is detected by the detecting means, if the second photographing mode is selected, and if the recording setting of photographed data to a recording medium is a predetermined recording setting, the power supply is not turned off, 2. The imaging apparatus according to claim 1, wherein the power is turned off when the recording setting is not the predetermined one. 3. The imaging apparatus according to claim 2, wherein the predetermined recording setting is a relay recording setting that continues recording over a plurality of recording media. The control means is
When the opening of the lid is detected by the detecting means, in the case of the second photographing mode, and in the case where power is being supplied from a predetermined power supply, power is supplied from the predetermined power supply without turning off the power supply. 4. The imaging apparatus according to any one of claims 1 to 3, wherein the power supply is turned off when not in the middle. 5. The imaging apparatus according to claim 4, wherein said predetermined power source is a power source separate from a battery housed in a battery housing portion. The first shooting mode is a still image mode for shooting a still image,
6. The imaging apparatus according to any one of claims 1 to 5, wherein the second shooting mode is a moving image mode for shooting moving images. Equipped with a recovery means for recovering a file that was not recorded to the recording medium normally,
7. The imaging apparatus according to claim 6, wherein said restoration means can restore a moving image file recorded in said moving image mode. 8. The lid is at least one of a lid of a recording medium housing portion for housing a recording medium and a lid of a battery housing portion for housing a battery. The imaging device according to . A control method for an imaging device for controlling an imaging device switchable to a plurality of imaging modes, comprising:
When the lid opening is detected by the detecting means for detecting opening and closing of the lid, the power is turned off in the case of the first photographing mode, and the power is not turned off in the case of the second photographing mode. A control method for an imaging device, comprising the step of controlling. A program for controlling an imaging device capable of switching between multiple shooting modes,
When the lid opening is detected by the detecting means for detecting opening and closing of the lid, the power is turned off in the case of the first photographing mode, and the power is not turned off in the case of the second photographing mode. A program that causes a computer to execute a process to be controlled.

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