JP2019071605A - Video recording apparatus for vehicle, reproducing apparatus, and program - Google Patents

Abstract

To provide a video recording apparatus, a reproducing apparatus, and a program for displaying an image according to the driver's intention simply by performing a driving operation.SOLUTION: In camera video display processing of configuration of a drive recorder, when a video signal is input to a video signal from a rear view camera 13, a video to be displayed on a display device 16 is switched to a video from a rear view camera 13, and when a video signal is not input to the video signal from real view camera 13, processing of switching of a video displayed on the display device 16 to a video before switching to the video from the rear view camera 13 is performed.EFFECT: A driver can check the situation behind the vehicle by looking at the display device 16 due to display of an image taken by the rear view camera 13 on the display 16 only by setting of the shift position to the back.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a video recording apparatus for vehicles and the like.

  The drive recorder, which stores vehicle condition information (forward image, vehicle speed, quick acceleration / deceleration, etc.) before and after the occurrence of a car accident, provides useful information for verification in the case of a car collision or the like. In particular, vehicles for transportation such as trucks, and commercial vehicles such as taxis and buses are in widespread use, and are also being mounted on general vehicles.

The drive recorder can store forward images showing a predetermined period before and after the occurrence of the accident and sudden braking, etc., and traveling data indicating the driving operation (brake operation, turn signal operation, traveling route, etc.) status of the driver. It is a structure. A brief description will be given of the configuration for storing video data. The CCD camera or the like always captures the vehicle and the surrounding situation from the driver's viewpoint (field of view), and temporarily captures the captured video as a ring buffer Remember to The video stored in the temporary storage memory is updated to the latest one by one, and video data of the past is held for the set time. On the other hand, the drive recorder is provided with a sensor such as an acceleration sensor that detects an accident occurring during an accident or a sudden braking or sudden steering, and when the output value of the sensor exceeds the threshold, it is from the time of the threshold (impact detection) The image of the previous fixed period is read out from the temporary storage memory and stored in the non-volatile memory (SD memory card etc.), and after the threshold is exceeded, the image of the CCD camera etc. taken after that is either directly or By storing via temporary storage memory, it has a function to save the image and the travel data etc. for a predetermined time before and after the impact in a non-volatile memory (SD card).

Then, when an accident occurs, it is possible to clearly prove the legitimacy of the driver based on the vehicle status information (such as an image) of the own vehicle stored in the non-volatile memory. This type of drive recorder is disclosed, for example, in Patent Document 1 and the like.

Unexamined-Japanese-Patent No. 2006-321423

Some drive recorders of this type have a function of reproducing and displaying the recorded video around the vehicle on display means such as a monitor. In addition, there is one which has a function of acquiring a vehicle peripheral image and displaying the acquired image on a display means. It is necessary to designate which one of these images is to be displayed on the display device with a remote control or a switch. Therefore, there is a problem that it is difficult for the driver to switch to a desired image during driving operation.

  In order to solve the problems described above, the present invention (1) acquires a vehicle state and a plurality of vehicle peripheral images, and synchronizes the acquired vehicle state and the plurality of vehicle peripheral images in time and can be reproduced as data In the vehicle image recording apparatus for recording in the recording means, an image to be preferentially outputted to the display means is determined and outputted out of the plurality of vehicle peripheral pictures based on the operation state of the vehicle by the driver. It is characterized by performing control.

According to such a configuration, the driver needs to switch the image with the remote control or the switch together with the driving operation in order to determine and output the image to be preferentially output to the display means based on the operation state of the vehicle by the driver. There is no

Note that the vehicle peripheral image may be an image of the outside of the vehicle or an image of the inside of the vehicle (for example, a vehicle interior).

  (2) In particular, as the operation state of the vehicle by the driver, it is preferable to set the driving state to indicate the direction in which the driver intends to travel the vehicle. In this way, an image in the direction in which the driver is to travel will be output, and an appropriate image according to the driver's intention will be displayed at an appropriate timing. For example, it is good to set it as the structure shown to (8) (9) mentioned later.

  (3) A video generation unit for generating a video to be output to the display unit, wherein the video generated by the video generation unit is controlled to determine and output a video to be preferentially output to the display unit At least one of the image showing the setting items relating to the vehicle, the image showing the vehicle state recorded in the recording means, the acquired image of the vehicle surroundings, and the image of at least one recorded in the recording means The control to determine and output the video to be output preferentially to the display means, including at least any one of the reproduced video, the control to switch only to the video, and superimposing a predetermined video on the video Control to switch to the combined video, control to display the video as a video larger than the other video, control to display the video at the center of the display means more than the other video It may be one of at least one.

  (4) On the premise of the configuration of (3), the video generation unit is configured to generate a video to be output to the display unit by executing a program by a computer, and further by executing the program by the computer Hardware that performs control to output the video with priority over other video when a video signal to be output preferentially is detected to the display unit even if the video generation is not possible Wear should be provided.

When realizing a function of generating video by executing a program by a computer, for example, since the computer is in the process of starting up or the processing load on the computer is high, the video by the execution of the program by the computer It may be in a state where generation is not possible. In such a case, it is difficult to output an image immediately reflecting the operation state of the vehicle by the driver by executing the program by the computer. However, with such a configuration, when a video signal to be output with priority given to the display means is detected by the hardware, the video is output with priority over other video, so the driver It is possible to immediately reflect the operation state of the vehicle according to the above, and to display an image to be output preferentially to the display means.

  (5) The control for determining and outputting the video to be preferentially output to the display means based on the operation state of the vehicle by the driver is the case where the video signal of the video to be preferentially output is input, The apparatus is configured to output the video to display means, and to output a video signal of the video to be preferentially output when the operation state of the vehicle by the driver is not in the predetermined operation state. It is preferable that power is supplied to a device that outputs a video signal of a video to be output with priority when the driver does not supply power and the driver operates in a predetermined operation state.

According to such a configuration, when the operation state of the vehicle by the driver is not in the predetermined operation state, the video signal of the video to be preferentially output is not output, and the video is not displayed on the display means . On the other hand, when the driver's operation state of the vehicle becomes a predetermined operation state, the video signal of the video to be output with priority is output and the video is displayed on the display means.

  (6) A plurality of video input terminals for inputting the plurality of vehicle peripheral videos are provided, and video input terminals of video to be output preferentially to the display means are different from video input terminals of other videos It is good to shape it. In this way, it can be easily understood which video input terminal should be connected to the video image pickup means (for example, a camera etc.) to be output preferentially.

  (7) Based on the configuration of (6), the video input terminal of the video to be output preferentially to the display means and the video input terminal of the other video are disposed in the same plane of the housing It is preferable to provide an insertion port of a recording medium constituting the recording means on the surface opposite to the surface on which these video input terminals are provided. In this way, when the recording medium is inserted into the insertion slot or taken out from the insertion slot, the cables connected to the video input terminal do not get in the way. In addition, when the recording medium is inserted into the insertion slot or taken out from the insertion slot, the problem that the cables connected to the video input terminal are caught and pulled out hardly occurs.

  (8) At least one of the plurality of vehicle peripheral images is a vehicle rear image, and when the shift position is back as the operation state of the vehicle by the driver, the vehicle rear image is compared with other images. It is preferable to perform control to output with priority. In this way, the driver can check the condition behind the vehicle by checking the display means only by setting the shift position to the back.

  (9) At least one of the plurality of vehicle peripheral images is a vehicle right image, and at least one of the plurality of vehicle peripheral images is a vehicle left image, and is determined as an operation state of the vehicle by the driver. When the right turn signal is issued at a speed equal to or lower than the vehicle speed, control is performed to output the video on the right side of the vehicle with priority over other video, and a predetermined speed or lower When the left turn signal is taken out in the state, it is preferable to perform control to output the vehicle left side image with priority over other images.

In this way, for example, when leaving a parking lot in one of the left and right directions, or when trying to turn a poorly visible intersection, the vehicle surroundings in the direction in which the turn signal is output below a predetermined vehicle speed An image will be displayed on the display means. Therefore, the driver can easily confirm the vehicle peripheral image in that direction without special operation for display in such a situation requiring attention. On the other hand, when the vehicle speed exceeds a predetermined speed, even if the winker is put out, the vehicle peripheral image in the direction in which the turn signal is put out is not displayed on the display means. Therefore, the driver does not feel annoyance due to the vehicle peripheral image being displayed on the display means while traveling at a predetermined vehicle speed or more, and the concentration of consciousness on the driving operation is not deviated.

  (10) It is preferable to have a function of issuing an alarm when a person is included in a video to be output preferentially to the display means. In this way, it is possible to take evasive action easily and immediately, such as stopping the vehicle when a warning is issued. In addition, the driver can easily confirm, for example, whether or not the target object of the warning is an avoidance target, by merely looking at the display means when there is a warning, without performing a special operation. For example, when a person is shown in the side camera image in the direction in which the turn signal is being emitted, an alarm is notified or when a person is shown in the back camera image when the back position is shown, the alarm is displayed. It is good to let

  (11) A collision detection means for detecting a state corresponding to a collision of a vehicle is provided, and regardless of the image output to the display means, the acquired vehicle state and the plurality of vehicle peripheral images The recording on the recording means may be performed when the collision detection means detects a collision. In this way, it is possible to reliably record a plurality of vehicle peripheral images at the time of a collision.

  (12) It is preferable that the recording of the acquired vehicle state and the plurality of vehicle peripheral images be performed on the recording unit regardless of the image output to the display unit. In this way, it is possible to reliably record a plurality of vehicle peripheral images at the time of a collision.

  (13) A collision detection means for detecting a state corresponding to a collision of a vehicle is provided, and when the collision detection means detects a collision, the recording means gives priority to the image being output to the display means. You may make it record with respect to. In this way, it is possible to reliably record an image that is likely to be recorded at the moment of the collision. In particular, according to the configuration premised on the configuration of (2), since it is possible to record an image in a direction in which the driver is about to drive the vehicle, excellent effects are exhibited.

  (14) When the video to be output with priority given to the display means is determined based on the operation state of the vehicle by the driver among the plurality of vehicle peripheral pictures, recording on the recording means as the reproducible data is performed. It is good also as composition to carry out. For example, on the premise of the configuration of (9), when the speed of the car is slower than a predetermined value and the turn signal is taken, the image of the side camera is displayed on the indoor monitor, and the recording outputs the turn signal. It may be performed at the same timing.

  (15) When reproducing the data of the vehicle peripheral image recorded in the recording means, it is preferable to have a function of inverting the reproduced image horizontally or vertically and reproducing the same. In this way, even if the camera for capturing a video around the vehicle is installed upside down, the video can be reproduced in the correct direction. In addition, for example, a video captured by a rear view camera that outputs a video signal of a horizontally reversed video can be horizontally flipped and reproduced.

(16) The operation state of the vehicle by the driver, the acquired vehicle state, and the plurality of vehicle peripheral images may be temporally synchronized with each other and recorded on the recording means as reproducible data. For example, by recording what the shift position is as the operation state of the vehicle by the driver, the engine brake is applied on the downhill which is hit during the back, or the vehicle is stopped or in neutral or parking (ECO operation)
I understand.

  (17) Data that can be reproduced in time synchronization with information indicating the video that is preferentially output to the display means, the operation state of the vehicle by the driver, the acquired vehicle state, and a plurality of vehicle peripheral videos It is preferable that the recording is performed on the recording unit.

  (18) A reproducing apparatus for reproducing data recorded in the recording means by the video recording apparatus for vehicles according to any one of (1) to (17), wherein the data of the vehicle peripheral picture recorded in the recording means is At the time of reproduction, it is preferable to have a function to reproduce the reproduced video horizontally and vertically or to reproduce it. The reproduction device may be mainly installed outside the vehicle, for example, a personal computer, or may be configured as a function of a navigation device or the like installed in the vehicle.

(19) A reproducing apparatus for reproducing data recorded in the recording means by the video recording apparatus for a vehicle according to (17), which is based on information indicating an image outputted with priority to the display means, It is preferable that a predetermined display indicating a video output with priority to the display means is performed among a plurality of vehicle peripheral videos being reproduced. In this way, which video is displayed on the display means can be easily grasped later when the video is played back by the playback device.
(20) The program according to (18) or (19) can be configured as a program for causing a computer to realize the function as the reproducing apparatus.

  According to the present invention, the driver does not need to perform special operations such as switching the image with the remote control or the switch together with the driving operation, and displays the video according to the driver's intention on the display means simply by performing the driving operation. be able to.

It is a block diagram showing composition of a drive recorder which is one suitable embodiment of the present invention. It is a figure which shows the connection relation of the main unit of a drive recorder, and each part. It is a perspective view which shows the front and back of the main unit of a drive recorder. It is a figure which shows the insertion method to the main unit of a memory card, and the example of attachment to the vehicle of a main unit. It is a figure which shows the attachment state to the vehicle of a front view camera. It is a figure which shows the example of attachment of an extension camera, and the structure of a camera. It is a figure which shows the attachment state and the imaging | photography range to the vehicle of a rear view camera. It is a figure which shows the power supply method etc. to a rear view camera. It is a figure which shows the structure of a remote control, and the example of the attachment position to a vehicle. It is a figure which shows the example of the display content which displays the imaging | video of a camera with respect to a display apparatus. It is a figure which shows the example of the display content displayed with respect to a display apparatus at the time of reproduction | regeneration. It is an example of a display of a reproduction screen.

FIGS. 1-9 is a figure which shows the structure of the drive recorder as a video recording device for vehicles as one preferable embodiment of this invention. FIG. 1 is a functional block diagram, and FIG. 2 is a device configuration diagram.

As shown in FIGS. 1 and 2, a main unit 1 (hereinafter also referred to as a main body) having a control unit 10, and a remote control 11, a GPS unit 12, a rear view camera 13, and an extension connected to the control unit 10 of the main unit 1 A camera 14, a front view camera 15, a display device 16, a built-in microphone 17, an external microphone 18, a memory card slot 19, an acceleration sensor 20, and a speaker 21 are provided.

As shown in FIG. 2 and FIG. 3A, etc., an AV output terminal 16b, which is a terminal for outputting a video signal and an audio signal to the display device 16, is provided on the front of the main unit 1; When the SD card 2 (see FIG. 4A) is inserted into the microphone terminal 18b, which is a terminal for inputting an audio signal, the SD card slot 19b (corresponding to the memory card slot 19 in FIG. 1), and the SD card slot 19b. And a slide lever 19c for locking and fixing the SD card. The slide lever 19c is for locking the SD card 2 when the SD card 2 is inserted, and as shown in FIG. 4A, the slide lever 19c is moved to the left to insert the SD card 2 into the SD card slot 19b. When the hand is released from the slide lever 19c, the slide lever 19c returns to the original position (FIG. 4A) and locks the SD card 2.

As shown in FIG. 3B, the vehicle signal connection terminal 40b, the remote control connection terminal 11b, the GPS unit connection terminal 12b, and the rear view camera connection terminal 13b are provided on the back of the main unit 1 (the surface facing the front). , An additional camera connection terminal 14b, and a front view camera connection terminal 15b, which are connected to the control unit 10, respectively. Further, an opening is provided on the upper surface of the main unit, and the built-in microphone 17 connected to the control unit 10 is provided in the opening.

As shown in FIG. 2, corresponding connectors are connected to these terminals, and connected to corresponding devices (each part) via cords (cables) connected to the connectors. That is, the control unit 10 is connected to the display device 16 via the AV output connector 16a connected to the AV output terminal 16b, and connected to the external microphone 18 via the microphone connector 18a connected to the microphone terminal 18b. In addition, the control unit 10 controls the brake lamp line 33 of the vehicle, the left blinker line 32 of the vehicle, the right blinker line 31 of the vehicle, and the vehicle speed signal line of the vehicle via the vehicle signal connection connector 40a connected to the vehicle signal connection terminal 40b. 30. Ground wire of the vehicle is connected to the ACC system power supply of the vehicle. The control unit 10 is also connected to the remote control 11 via the remote control connection connector 11a connected to the remote control connection terminal 11b, and connected to the GPS unit 12 via the GPS unit connection connector 12a connected to the GPS unit connection terminal 12b. Connected to the rear view camera connection connector 13a connected to the rear view camera connection terminal 13b, and connected to the extension camera 14 via the extension camera connection connector 14a connected to the extension camera connection terminal 14b; It is connected to the front view camera 15 via the front view camera connection connector 15 a connected to the view camera connection terminal 15 b. The front view camera connection terminal 15b and the additional camera connection terminal 14b are mini pin jacks, the rear view camera connection terminal 13b is an RCA terminal, and both are terminals of different shapes.

The main unit 1 is installed in the vehicle. For example, as shown in FIG. 4B, in the vicinity of the driver's seat, at a position where the driver can easily take out the SD card 2, and at a position where the cables connected to the above-mentioned terminals do not interfere with the driving operation. Install. For example, as shown in FIG. 4B, the bottom surface is attached and fixed to a center console at a position in front of the driver's seat and an undercover of an instrument panel using a double-sided tape. At this time, the front of the main body is directed to the right in FIG. 4B, and the rear of the main body is directed to the left.

The front view camera 15 is a camera for photographing the front of the vehicle, and outputs an NTSC signal as a video signal of a photographed video. As shown in FIG. 5, the front view camera 15 fixes the front side of the vehicle interior with a double-sided tape so that the lens faces in the direction of travel as a direction for capturing the front of the vehicle. The fixed position is a position within 20% of the entire windshield from the upper portion of the windshield in the vehicle compartment (a range indicated by a symbol d in the drawing). The power of the front view camera 15 is supplied from the control unit 10.

  The additional camera 14 is a camera that can be mounted at an arbitrary position and capable of capturing an image around the vehicle, and outputs an NTSC signal as an image signal of the captured image. For example, as shown in FIG. 6 (a), the indoor direction (the direction from the front glass to the rear of the vehicle) is fixed as a direction to capture an image on the front glass of the vehicle interior with double-sided tape. The power supply of the additional camera 14 is supplied from the control unit 10.

  As shown in FIG. 6B, the extension camera 14 has a normal image mode for outputting the captured image as it is and a mirror image mode for inverting the captured image and outputting the image horizontally, and setting for setting the mode. A switch 14s is provided. The additional camera 14 switches between the normal image mode and the mirror image mode according to the state of the setting switch 14s, and outputs a corresponding video signal. For example, the normal image mode may be set when capturing the forward direction of the vehicle, and the mirror image mode may be set when capturing the indoor direction or the backward direction of the vehicle.

The rear view camera 13 is a camera for photographing the rear of the vehicle, and outputs an NTSC signal as a video signal of a photographed video. The rear view camera 13 is installed, for example, in the vicinity of the license plate outside the back door of the vehicle as shown in FIGS. 7 (a) and 7 (b). The view | field angle which the rear view camera 13 image | photographs is shown in FIG.7 (c) (d). FIG. 7C is a view showing the vehicle viewed from the upper surface side of the vehicle, and shows the angle of view in the left-right direction when displayed on the display device 16, and the angle of view is the right 60 degrees (120 degrees in total). FIG. 7D is a view showing the vehicle viewed from the side of the vehicle, and shows the angle of view in the vertical direction when displayed on the display device 16, and the angle of view with respect to the photographing direction It is 43 degrees left and right (86 degrees overall).

The wiring of the power supply of the rear view camera 13 and the wiring of the video signal from the rear view camera 13 will be described with reference to FIG. The power of the rear view camera 13 is supplied from the positive side wire 93 of the reverse lamp of the vehicle. That is, the positive side wiring 93 of the reverse lamp and the power supply line 81 are connected by the electro tap 80 and connected to the power supply line of the rear view camera 13 through the power supply line 81 and the fuse 82. The positive side wiring 93 of the reverse lamp of the vehicle is connected to one end of the reverse lamp and one end of the back position switch 92 of the shift lever, and the other end of the reverse lamp 94 is the negative terminal of the battery and the other end of the back position switch 92 Are each connected to the positive terminal of the battery. Ground line 83 has one end connected to the existing unpainted vehicle etc. and the other end connected to the ground line of rear view camera 13, and the unpainted vehicle screw is the negative terminal of battery 91. It is connected to the. The back position switch 92 of the vehicle is configured to be on when the shift lever is in the back position and to be off when the shift lever is other than the back position. As a result, while the shift lever is in the back position, current flows through the plus wire 93 of the reverse lamp of the vehicle, and the reverse lamp 94 is turned on. At this time, power is supplied from the electro tap 83 to the rear view camera 13 through the power supply line 81 and the fuse 82. The rear view camera 13 outputs a video signal while power is supplied. The video signal is input to the control unit 10 through the rear view camera connection connector 13a connected to the rear view camera connection terminal 13b. On the other hand, while the shift lever is in a state other than the back position, no current flows through the plus wire 93 of the reverse lamp of the vehicle, the reverse lamp 94 is extinguished, and the power supply to the rear view camera 13 is not made. . As a result, while the shift lever is in the state other than the back position, the video signal is not output from the rear view camera 13 and the video signal from the rear view camera 13 is not input to the control unit 10 either.

  The GPS unit 12 is installed at the front position of the dashboard, receives GPS signals, obtains the current position from the received GPS signal, and obtains position information (longitude, latitude) of the obtained current position, etc. as data in NMEA format To the control unit 10.

As shown in FIG. 9A, the remote controller 11 includes a first button 11p, a second button 11q, a third button 11r, a first lamp 11x, and a second lamp 12y. As shown in FIG. 9B, three installation patterns are shown, and the back surface is attached and fixed using a double-sided tape at a position where the driver can easily operate, such as a center console or an undercover of an instrument panel.
The display device 16 is a liquid crystal monitor for inputting and displaying an NTSC signal such as a car navigation system or a car television.

The acceleration sensor 20 is provided inside the main unit 1 and connected to the control unit 10. After fixing the main unit 1 to the vehicle (for example, after fixing as shown in FIG. 4B), the control unit 10 simultaneously presses the first button 11p and the second button 11q of the remote control 11 for 2 seconds or more If it is detected, perform initial setting. In this initial setting, the vehicle is moved straight back and forth, and the acceleration sensor 20 detects the direction of acceleration when this is moved back and forth. The three axes (x-axis, y-axis and z-axis) of the acceleration sensor 20 The acceleration sensor 20 outputs a value with the X-axis in the front-rear direction of the vehicle, the Y-axis in the left-right direction of the vehicle, and the Z-axis in the vertical direction of the vehicle. Setting processing. The forward direction is the positive direction of the X axis, the left direction is the positive direction of the Y axis, and the upper direction is the positive direction of the Z axis. A known method can be used as such an initialization method.
The speaker 21 is provided inside the main unit 1 and connected to the control unit 10.

  The control unit 10 includes a microcomputer including a CPU, a ROM, a RAM, a flash memory, various peripheral circuits, an interface, etc., and is connected to each unit shown and described in FIG. ing. When the ACC of the vehicle is turned on, the control unit 10 is supplied with power and starts operation. The control unit 10 expands the OS and the application program recorded in the flash memory on the RAM by the boot loader recorded in the ROM, and executes the OS and the application program on the RAM to perform various processes to be described later. Execute to realize various functions. The OS is a multitasking OS, which implements parallel processing by switching and executing various application programs.

  The control unit 10 acquires the signal states of the NMEA data from the GPS unit 12, the acceleration sensor 20, the brake lamp line 33, the left turn signal line 32, and the right turn signal line 31 as the vehicle state as needed after power on. A data / signal state recording process is performed on the memory card 2 loaded in the card slot 19 to record these data and signal states in a file at predetermined time intervals (for example, 30 times per second).

In addition, the control unit 10 acquires an image of the front view camera 15, the rear view camera 13, and the additional camera 14 as a plurality of vehicle peripheral images, and performs camera image display processing to be displayed on the display device 10, data / signal condition recording processing The video / audio recording process is performed to temporally synchronize the vehicle state to be recorded with the vehicle peripheral image and to reproduce the data as reproducible data.

  The control unit 10 includes, as peripheral circuits, a video capture circuit for capturing the NTSC signals from the front view camera 15, the rear view camera 13, and the extension camera 14 on the RAM as video data. In addition, the control unit 10 includes a video memory (VRAM) or the like as a peripheral circuit, and outputs the drawing data drawn in the video memory as an NTSC signal to the display device 16 via an electronic switch described later. And a generation circuit.

  The control unit 10 performs camera image display processing of transferring each captured video data to a video memory and displaying the video data on the display device 16 as needed after power on. The camera image display process performs a process of outputting an image of the front view camera 15 to the display device 16 as a default process. In the camera image display process, when the depression of the first button 11p of the remote control 11 is detected, the image transferred to the video memory and displayed on the display device 16 is displayed on the front view camera 15, the additional camera 14, and the rear view camera A process of switching in order of 13 videos is performed. For example, if the driver presses the first button 11p twice after activation of the apparatus, and the shift position is back, as shown in FIG. 10, it is photographed by the rear view camera 13 An image is displayed on the display area 16 a of the display device 16. In the camera video display process, when a video signal is input to the video signal from the rear view camera 13, the video transferred to the video memory and displayed on the display device 16 is switched to the video from the rear view camera 13. When the video signal is not input to the video signal from the rear view camera 13, processing for switching the video transferred to the video memory and displayed on the display device 16 to the video before switching to the video from the rear view camera 13 is performed.

In this way, the driver simply places the shift position in the back, and as shown in FIG. 10, the image captured by the rear view camera 13 is displayed in the display area 16a of the display device 16, and the vehicle rear Can be confirmed by viewing the display device 16. As described above, since the control unit 10 determines and outputs a video to be preferentially output to the display device 16 based on the operation state of the vehicle by the driver, the driver switches the video with the remote control 11 together with the driving operation. There is no need, and an image in the direction to be run will be outputted, and an appropriate image according to the driver's intention will be displayed at an appropriate timing.

  The video and audio recording process records audio acquired from the built-in microphone 17 and audio data acquired from the external microphone 18 together with video data captured by the front view camera 15, the rear view camera 13, and the extension camera 14 after power on. Processing. For each of the video data of the front view camera 15, the video data of the rear view camera 13 and the video data of the additional camera 14, the audio data acquired from the built-in microphone 17 is the left channel, and the audio data acquired from the external microphone 18 is the right channel As it is encoded in the MPEG format, it will be recorded in three files.

File name of file of signal state to be recorded in data / signal state recording process and file name of three MPEG files to be recorded by video / audio recording process are respectively obtained in respective processes from real time clock (clock) provided as peripheral circuit of microcomputer Record the file using the date and time when recording started. Therefore, by reading the date and time of this file name, it is possible to specify the position recorded at the same date and time of the data of each file. Therefore, it is possible to perform reproduction processing to reproduce these files in time synchronization. The end of the recording of these files is performed when the supply of ACC power to the main unit is cut off. The control unit 18 is provided with a backup power supply having a battery that operates the control unit 18 and the connected units during the time (5 seconds) required to complete the recording of the file when the ACC power is shut off. When the interruption of the ACC power source is detected, the OS notifies the recording process of the recording process, and the termination process of the recording of all the files is executed. Therefore, each recording file will be generated between the power-on by ACCON of the vehicle and the power-off by ACCOFF.

  When the control unit 10 detects that the second button 11 q of the remote control 11 is pressed long (continuously pressed for 2 seconds or more), the control unit 10 reproduces the video from the beginning of the currently recorded MPEG file of the video and audio of the front view camera 15 Start playback processing (start playback so-called playback while playing back while recording). As shown in FIG. 11, the operation help 82, the camera information 85 of the reproduction video, the reproduction state 84, and the reproduction video date 83 are displayed superimposed on the reproduction video 81 for a predetermined time (5 seconds) from the start of the reproduction processing. . These displays are also performed for a predetermined time (3 seconds) even when pressing of any button of the remote control 11 is detected during the reproduction process.

  The operation help 82 indicates what kind of processing is performed when any button of the remote control 11 is pressed. As shown in FIG. 11, the correspondence between the button position of the remote control 11 in the state where the remote control 11 in FIG. 9 is rotated 45 degrees clockwise and the processing content is shown. , Indicates that the processing described in characters on the right side is to be performed. For example, the button shown in black in the schematic view of the remote control 11 on the left side of the portion drawn as "play / stop / slow" in FIG. 11 corresponds to the second button 11q, and pressing only the second button 11q Each time when is detected, it is shown that the screen display processing (that is, the content of the reproduction processing of the control unit 10) is switched in the order of reproduction → stop → throw. The current state of the screen display processing is displayed in the reproduction state 84 as "during playback", "stopped", and "slowing". Also, information indicating which camera has recorded the video currently being reproduced is displayed as camera information 85. The camera information 85 is “CAM 1” while displaying the image of the file recorded by the front view camera 15, “CAM 2” while displaying the image of the file recorded by the extension camera 14, and the file recorded by the rear view camera 13 "REAR" is displayed while displaying the image of. The playback video date and time 83 is an area for displaying the date and time of the video of the file being displayed, and the recording date and time of the head of the file acquired from the file name and the date and time when the frame currently being displayed was recorded It asks for and displays.

If pressing of only the first button 11p is detected during playback processing, the file to be played back is switched, and the video is played from the frame having the same date and time as the frame currently being played. By doing this, even when the file to be reproduced is switched, the video is displayed continuously in time. As a result, even with the switching of the file to be reproduced, the reproduction video date 83 is continuously advanced.
When pressing of only the third button 11r is detected during the reproduction process, the reproduction process is ended and the camera image display process is performed (the reproduction end).

  If simultaneous pressing of the second button 11 q and the third button 11 r is detected during playback processing, the file to be played back is switched from the file currently being played back to the file older by one. That is, referring to the file name, the file recorded immediately before the currently reproduced file is specified from the date and time included in the file name, and the video is reproduced from the beginning of the file. If there is no file older than the currently played file, the currently played file is played from the beginning.

  If simultaneous pressing of the first button 11p and the second button 11q is detected during the reproduction process, the file to be reproduced is switched from the file currently being reproduced to one new file. That is, referring to the file name, the file recorded one after the currently reproduced file is specified from the date and time included in the file name, and the video is reproduced from the beginning of the file. If there is no file newer than the currently played file, the currently played file is played from the beginning.

As described above, the image of the front view camera 15, the additional camera 14, and the rear view camera 13 is switched by the operation of the remote control 11, and a desired current image is displayed on the display device 16, or the front view camera 15 and the additional camera 14 The image taken by the rear view camera 13 and reproduced on the memory card 2 is reproduced, and the reproduction image of the front view camera 15, the additional camera 14 and the rear view camera 13 is switched by the operation of the remote control 11, and the desired past Can be displayed on the display device 16 or the like. The control unit 10 performs control to switch to at least one of the vehicle peripheral images acquired in this manner or to at least one of the images recorded on the memory card 2 and reproduced.

  In the present embodiment, the control unit 10 controls the control unit 10 to switch only at least one of the acquired vehicle peripheral images and at least one of the images recorded on the memory card 2 to the reproduced image. In addition, the control unit 10 determines the image to be output preferentially to the display device 16 and indicates the setting item related to the control to output, and indicates the vehicle state recorded in the memory card 2 An image may be displayed. The control to determine and output the video to be output preferentially to the display device 16 is the control to switch only to the video, but further, the control to switch to a video in which a predetermined video is superimposed on the video, The control may be at least one of control for displaying a video as a video having a size larger than that of another video, and control for displaying the video at a central portion of the display device 16 more than the other video.

  According to the process of the present embodiment, regardless of the image output to the display device 16, the acquired vehicle state and the plurality of vehicle peripheral images acquired from the front view camera 15, the rear view camera 13, and the extension camera 14 Recording on the memory card 2 of FIG. In this way, it is possible to reliably record a plurality of vehicle peripheral images at the time of a collision.

In this embodiment, the image is always recorded from ACCON to ACC OFF, but the recording is not always performed or the condition corresponding to the collision of the vehicle by the acceleration sensor 20 while the recording is always performed is When detected, regardless of the image output to the display device 16, recording is performed on the memory card 2 of the vehicle state and the vehicle peripheral image acquired from the front view camera 15, the rear view camera 13, and the extension camera 14 It is good also as composition. In this way, it is possible to reliably record a plurality of vehicle peripheral images at the time of a collision. Also, when a collision is detected, the video output to the display device 16 may be preferentially recorded in the memory card 2. In this way, it is possible to reliably record an image that is likely to be recorded at the moment of the collision.

  In the present embodiment, although the video of the rear view camera 15 for capturing the rear of the vehicle is recorded, the present invention is not limited to this and any video may be recorded. Further, an arbitrary state may be acquired and recorded as the operation state of the vehicle. For example, a side camera for acquiring a vehicle right side image and a vehicle left side image is respectively provided, and the control unit 10 is connected to the in-vehicle LAN, and the driver operating state of the vehicle by the driver In the state of 10 km / h or less, when it is detected that the right blinker has been issued, control is performed to output the vehicle right image with priority over other images, while the vehicle speed is lower than a predetermined vehicle speed (for example, 10 km) When it is detected that the left turn signal has been output in the state of (/ h or less), control may be performed to output the vehicle left image with priority over other images. In this way, for example, when leaving a parking lot in one of the left and right directions, or when trying to turn a poorly visible intersection, the vehicle surroundings in the direction in which the turn signal is output below a predetermined vehicle speed An image is to be displayed on the display device 16. Therefore, the driver can easily confirm the vehicle peripheral image in that direction by looking at the display device 16 without special operation for display in such a situation requiring attention. On the other hand, when the vehicle speed exceeds a predetermined speed, even if the winker is put out, the vehicle peripheral image in the direction in which the turn signal is put out is not displayed on the display device 16. Therefore, the driver does not feel annoyance due to the display of the vehicle peripheral image while being driven at a predetermined vehicle speed or more, and does not distract attention. In addition, when the control unit 10 determines an image to be output preferentially to the display device 16 among a plurality of vehicle peripheral images based on the operation state of the vehicle by the driver, the memory card is data that can be reproduced. It is good also as composition which performs recording to 2. For example, when the speed of the car is slower than a predetermined value and the turn signal is taken, the image of the side camera may be displayed on the indoor monitor, and the recording may be performed at the timing when the turn signal is taken. .

When the data of the vehicle peripheral image recorded in the memory card 2 is reproduced, it is preferable to have a function of inverting the reproduced image horizontally or vertically and reproducing it. In this way, even if the camera for capturing a video around the vehicle is installed upside down, the video can be reproduced in the correct direction. In addition, for example, a video captured by a rear view camera that outputs a video signal of a horizontally reversed video can be horizontally flipped and reproduced.

Note that it is preferable that the operation state of the vehicle by the driver, the acquired vehicle state, and the plurality of vehicle peripheral images be synchronized in time and recorded on the memory card 2 as reproducible data. For example, by recording what the shift position is as the operation state of the vehicle by the driver, the engine brake is applied on the downhill which is hit during the back, or the vehicle is stopped or in neutral or parking (ECO operation) etc. are understood. Then, the information indicating the video that is preferentially output to the display device 16, the operation state of the vehicle by the driver, the acquired vehicle state, and the plurality of vehicle peripheral images are stored as data that can be reproduced in time synchronization with each other. It is preferable to perform a recording process on the card 2.

  In the present embodiment, camera image display processing is performed by execution of a program by a computer to generate an image to be output. However, even if generation of an image by execution of a program by a computer is not possible, the display device 16 If a video signal to be output with priority given to is detected, it is preferable to include hardware that performs control to output the video with priority over other video. That is, the control unit 10 is hardware that performs control to output the video of the rear view camera 13 with priority over the video of the front view camera 15 and the video of the extension camera 14 when the shift position is back. A control unit 10 is provided with a certain electronic switch (video signal selector). A video signal line from the rear view camera 13 and an output line from the video generation circuit of the control unit 10 are connected to this electronic switch, and a video signal is input to the video signal from the rear view camera 13 of the electronic switch. In this case, the video signal from the rear view camera 13 is output to the display device 16, and when the video signal is not input to the video signal from the rear view camera 13, the output from the video generation circuit is displayed on the display device 16. Output to Further, a signal indicating whether or not the video signal from the rear view camera 13 is input is output to the microcomputer provided in the control unit 18, and the video signal is output as the video signal from the rear view camera 13 during the reproduction processing described above. When the input signal is detected, the reproduction process is paused. With the configuration shown and described with reference to FIG. 8, while the shift lever is in a state other than the back position, the video signal from the rear view camera 13 is not input to the electronic switch of the control unit 10, and the shift lever is in the back position. While in the state of, the video signal from the rear view camera 13 is input to the electronic switch of the control unit 10.

In this way, the driver can immediately confirm the situation behind the vehicle by looking at the display device 16 simply by setting the shift position to the back. As described above, since the control unit 10 determines and outputs a video to be preferentially output to the display device 16 based on the operation state of the vehicle by the driver, the driver switches the video with the remote control 11 together with the driving operation. There is no need, and an image in the direction to be run will be outputted, and an appropriate image according to the driver's intention will be displayed at an appropriate timing. Since the camera image display process is realized by the execution of the program by the microcomputer, the camera image display process is performed because, for example, the microcomputer is in the process of starting up the OS or the microcomputer processing load is high. There are cases where it is not possible to generate an image. In such a state, it is difficult to immediately reflect the operation state of the vehicle by the driver and output the image of the rear view camera 13 by the camera image display processing. However, when the video signal from the rear view camera 13 is detected by the electronic switch (hardware), the video from the rear view camera 13 is output with priority over other videos, so the driver's operation state of the vehicle Can be reflected immediately, and the image from the rear view camera 13 can be displayed on the display device 16.

Furthermore, pattern matching processing on image data acquired from the rear-view camera 13 of the control unit 10 as to whether or not a person is captured in the image preferentially output to the display device 16 like the image of the rear-view camera 13 It is preferable to perform a process of emitting an alarm sound from the speaker 21 when a pattern corresponding to a person is determined. In this way, it is possible to easily and immediately take evasive action, such as stopping the vehicle when an alarm sound occurs. In addition, the driver can easily confirm, for example, whether the target object of the alarm is an avoidance target, by merely looking at the display device 16 when the alarm sound is sounded without performing a special operation. . For example, when a person is shown in the side camera image in the direction in which the turn signal is being emitted, an alarm sound is notified, or when a person is shown in the back camera image when the back position is shown, the alarm It is good to inform by sound.

  In this embodiment, the rear view camera connection terminal 13b, which is an input terminal for a rear view image that is an image to be output preferentially to the display device 16, is an RCA terminal, while the front view camera is an image input terminal for other images. The connection terminal 15b and the additional camera connection terminal 14b have different shapes as mini pin jacks. In this way, it can be easily understood to which video input terminal the camera (rear view camera 13) of the video to be output preferentially should be connected. The rear-view camera connection terminal 13b, the front-view camera connection terminal 15b, and the additional camera connection terminal 14b are disposed in the back of the main unit 1, and the main unit is a surface facing the surface provided with these video input terminals. A memory card slot 19 which is an insertion slot for the memory card 2 is provided on the front of 1. In this way, when the memory card 2 is inserted into the memory card slot 19 or taken out of the memory card slot 19, the cables connected to the video input terminal do not get in the way. In addition, when the memory card 2 is inserted into the memory card slot 19 or taken out of the memory card slot 19, the problem that the cables connected to the video input terminal are caught and pulled out hardly occurs.

The data recorded on the memory card 2 can be taken out of the memory card slot 19 from the memory card slot 19, inserted into a personal computer, and reproduced using a program on the personal computer. For example, a viewer screen 100 as shown in FIG. 12 is displayed by processing by a program on a personal computer. As shown in FIG. 12, the viewer screen 100 has a menu bar 101, display area 102, display switching button 103, volume knob 104, speed display 105, brake blinker display 106, acceleration display 107, latitude and longitude display 108, display operation button An acceleration sensor graph 110, a date and time display 111, a map 112, and a playlist list 113 are provided.

  The display area 102 includes a front view camera video reproduction area 102 a, an additional camera video reproduction area 102 b, and a rear view camera video reproduction area 102 c. When reproducing the data of the vehicle-surrounding image of the front view camera, the additional camera, and the rear view camera recorded in the memory card 2, it has a function of inverting the reproduced image horizontally and vertically and reproducing it. When the front view camera video reproduction area 102a, the additional camera video reproduction area 102b, and the rear view camera video reproduction area 102c are right-clicked, the reproduced video is switched in the order of horizontal flip, vertical flip, horizontal flip, and reverse.

Further, based on the information indicating the video output with priority given to the display device 16 described above, a predetermined video representing the video output with priority given to the display device 16 out of the plurality of vehicle surroundings video being reproduced. It is good to be configured to display. In this way, which video is displayed on the display device 16 can be easily grasped later when the video is played back by a playback device such as a personal computer. For example, the start date and end date when the video from the rear view camera is input are recorded, and the outer frame portion of the rear view camera video playback area 102c is highlighted during playback of the video at that date and time. .

Although the viewer screen 100 is a screen displayed on a personal computer, the viewer screen 100 may be output to a screen of a navigation device installed in a car, or may be output to the display device 16, for example.

  As mentioned above, although this invention was demonstrated using the Example, the technical scope of this invention is not limited to the range as described in the said embodiment. The examples described in the above embodiments may be combined in any combination, or various modifications or improvements may be added. In addition, the description contents of the claims, background art, problems to be solved by the invention, and means for solving the problems are appropriately applied to each embodiment, and technical common knowledge of those skilled in the art is applied to make the embodiment. be able to.

DESCRIPTION OF SYMBOLS 2 Memory card 10 Control part 11 Remote control 12 GPS unit 13 Rear view camera 14 Expansion camera 15 Front view camera 16 Display 17 Built-in microphone 18 External microphone 19 Memory card slot 20 Acceleration sensor 21 Speaker

Claims (3)

  A vehicle video recording apparatus for acquiring a vehicle state and a plurality of vehicle peripheral videos, and temporally synchronizing the acquired vehicle states and the plurality of vehicle peripheral videos with respect to a recording unit as reproducible data.
  It has a function of determining and outputting a video to be preferentially output to the display means based on the operation state of the vehicle by the driver among the plurality of vehicle peripheral videos.
  At least one of the plurality of vehicle peripheral images is a vehicle right image, and at least one of the plurality of vehicle peripheral images is a vehicle left image,
  As a state of operation of the vehicle by the driver, when a right turn signal is taken out at a predetermined vehicle speed or lower, control is performed to output the vehicle right side image with priority over other images.
  When a left turn signal is taken out at a predetermined vehicle speed or less as the operation state of the vehicle by the driver, control is performed to output the vehicle left image with priority over other images.
  A video recording apparatus for vehicles characterized by   It has a function to issue an alarm when a person appears in the image to be output preferentially to the display means
  The video recording apparatus for a vehicle according to claim 1, characterized in that:   The program for making a computer implement | achieve the function of the video recording device for vehicles of Claim 1 or 2.