JP2017022721A - Image recording device for vehicle, reproducing apparatus, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display an image to meet driver's intention only by performing a driving operation by a driver.SOLUTION: Camera image displaying processing performs processing that an image to be displayed on a display device 16 is switched to an image from a rear view camera 13 if an image signal is inputted in an image signal from the rear view camera 13, and the image to be displayed on the display device 16 is switched to an image before switching to the image from the rear view camera 13 if the image signal is not inputted in the image signal from the rear view camera 13. Thereby, only by setting a shift position to a back position by a driver, the image photographed by the rear view camera 13 is displayed on the display device 16 and conditions in rear of a vehicle can be checked by watching the display device 16.SELECTED DRAWING: Figure 2

Description

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

  A drive recorder that stores vehicle status information before and after an automobile accident (forward image, vehicle speed, sudden acceleration / deceleration, etc.) provides useful information for verification in the event of an automobile collision. In particular, it is widely used in transportation vehicles such as trucks and business vehicles such as taxis and buses, and is also being installed in general vehicles.

This drive recorder is capable of storing a front video and a driving data indicating a driver's driving operation (brake operation, turn signal operation, driving route, etc.) for a certain period before and after the occurrence of an accident or sudden braking. It has a configuration. Briefly describing the configuration for storing video data, the CCD camera or the like always images the vehicle and the surrounding situation from the driver's viewpoint (view), and the captured image is temporarily stored in a ring buffer or the like. To remember. The video stored in the temporary storage memory is sequentially updated to the latest one, and the past video data is held for the set time. On the other hand, the drive recorder is equipped with a sensor that detects an impact such as an acceleration sensor or an impact that occurs during sudden braking or sudden steering. If the output value of the sensor exceeds the threshold, the threshold is exceeded (impact detection). The previous video for a certain period is read from the temporary storage memory and stored in the non-volatile memory (SD memory card or the like). By storing via a temporary storage memory, it has a function to save the video and the running data for a predetermined time before and after the impact in a nonvolatile memory (SD card).

When an accident occurs, it is possible to clearly prove the validity of the driver based on the vehicle status information (video etc.) of the own vehicle stored in the nonvolatile memory. This type of drive recorder is disclosed in, for example, Patent Document 1 and the like.

JP 2006-321423 A

Some drive recorders of this type have a function of reproducing and displaying recorded video around the vehicle on a display means such as a monitor. Some have a function of acquiring a vehicle peripheral image and displaying the acquired image on a display means. Which of these images is to be displayed on the display device needs to be instructed by a remote controller or a switch. Therefore, there is a problem that it is difficult for the driver to switch to a desired image during the driving operation.

  In order to solve the above-described problems, the present invention acquires (1) a vehicle state and a plurality of vehicle peripheral images, and the acquired vehicle state and the plurality of vehicle peripheral images are temporally synchronized and reproduced as data. In the vehicular video recording apparatus for recording to the recording means, a video to be preferentially output to the display means is determined and output from among the plurality of vehicle peripheral images based on the operation state of the vehicle by the driver. Control is performed.

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 output with priority to the display unit based on the operation state of the vehicle by the driver. There is no.

Note that the vehicle periphery image may be an image outside the vehicle or an image inside the vehicle (for example, in the vehicle interior).

  (2) In particular, the operation state of the vehicle by the driver may be a driving state indicating a direction in which the driver tries to drive the vehicle. In this way, an image in the direction in which the driver will travel will be output, and an appropriate image in accordance with the driver's intention will be displayed at an appropriate timing. For example, the configurations shown in (8) and (9) described later are preferable.

  (3) Control that includes a video generation unit that generates a video to be output to the display unit, and the video generated by the video generation unit determines and outputs a video to be output with priority to the display unit. A video indicating a setting item, a video indicating a vehicle state recorded in the recording unit, at least one video of the acquired vehicle surrounding video, and at least one video recorded in the recording unit. The control that determines and outputs the video to be output with priority to the display means includes at least one of the reproduced videos, the control to switch only to the video, and the predetermined video to be superimposed on the video Control to switch to the combined video, control to display the video as a video of a size larger than other video, control to display the video at the center of the display means than the other video It may be one of at least one.

  (4) On the premise of the configuration of (3), the video generation means generates a video to be output to the display means by executing a program by a computer, and further by execution of 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 with priority to the display means is detected even when video generation is not possible. It is good to have wear.

When realizing the function of generating a video by executing a program by the computer, for example, because the computer is in the process of starting or the processing load of the computer is high, the video of the video by executing 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 that immediately reflects 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 to the display means is detected by hardware, the video is output with priority over other videos. By immediately reflecting the operation state of the vehicle according to the above, it is possible to display a video output preferentially on the display means.

  (5) Based on the operation state of the vehicle by the driver, the control for determining and outputting the video to be output with priority to the display means is performed when the video signal of the video to be output with priority is input. For a device that outputs the video to the display means, and outputs the video signal of the video to be preferentially output when the vehicle operation state by the driver is not a predetermined operation state. It may be configured to supply power to a device that outputs a video signal of a video to be preferentially output when a vehicle operation state by the driver becomes a predetermined operation state without supplying power.

According to such a configuration, when the operation state of the vehicle by the driver is not the predetermined operation state, the video signal of the video output with priority is not output, and the video is not displayed on the display means. . On the other hand, when the operation state of the vehicle by the driver becomes a predetermined operation state, the video signal of the video 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 images are provided, and a video input terminal for video output preferentially to the display means is different from other video input terminals. The shape is good. In this way, it can be easily understood which video input terminal should be connected to an image capturing means (for example, a camera) for outputting video with priority.

  (7) On the premise of the configuration of (6), the video input terminal for the video output preferentially to the display means and the video input terminal for the other video are arranged in the same plane of the casing. It is preferable to provide an insertion port for 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, the cables connected to the video input terminal do not get in the way when the recording medium is inserted into or removed from the insertion slot. Further, when the recording medium is inserted into or removed from the insertion slot, a problem that the cables connected to the video input terminal are caught and pulled out is less likely to occur.

  (8) At least one of the plurality of vehicle peripheral images is a vehicle rear image, and the vehicle rear image is compared with another image when a shift position is set to the back as an operation state of the vehicle by the driver. Also, it is preferable that the control is performed so that the output is given priority. In this way, the driver can check the situation behind the vehicle by looking at the display means only by setting the shift position to the back.

  (9) At least one of the plurality of vehicle surrounding images is a right side image of the vehicle, and at least one of the plurality of vehicle surrounding images is a left side image of the vehicle. When the right turn signal is output in a state below the vehicle speed of the vehicle, control is performed to output the vehicle right side image with priority over other images, and the vehicle operation state by the driver is less than a predetermined vehicle speed. In this state, when the left turn signal is taken out, the vehicle left-side image may be controlled to be output with priority over other images.

In this way, for example, when leaving the parking lot in either the left or right direction, or when trying to make a turn at an intersection with poor visibility, the vicinity of the vehicle in the direction in which the turn signal is emitted at a predetermined vehicle speed or less. The video is displayed on the display means. Therefore, the driver can easily check the vehicle surrounding image in the direction without special operation for display in such a situation requiring attention. On the other hand, when the vehicle speed exceeds the predetermined vehicle speed, even if the winker is taken out, the vehicle peripheral image in the direction in which the winker is taken out is not displayed on the display means. Therefore, the driver does not feel annoyed by displaying the vehicle peripheral image on the display means while traveling at a speed higher than the predetermined vehicle speed, and the driver's consciousness is not distracted.

  (10) It may be provided with a function of issuing an alarm when a person is shown in the video output with priority to the display means. In this way, avoidance behavior can be taken easily and immediately, such as stopping the vehicle when an alarm is issued. Further, the driver can easily confirm whether the alarm target is an avoidance target or the like by merely looking at the display means when there is an alarm without performing any special operation. For example, if there is a person in the side camera image in the direction of the turn signal, the alarm will notify you, or if you are in the back position, if there is a person in the back camera image, It ’s a good idea to let them know.

  (11) A collision detection unit that detects a state corresponding to a vehicle collision is provided, and the acquired vehicle state and the plurality of vehicle surrounding images are output regardless of the image output to the display unit. The recording unit may be configured to perform recording when a collision is detected by the collision detection unit. In this way, it is possible to reliably record a plurality of vehicle peripheral images at the time of a collision.

  (12) Regardless of the video output to the display unit, the acquired vehicle state and the plurality of vehicle peripheral images may be recorded on the recording unit. In this way, it is possible to reliably record a plurality of vehicle peripheral images at the time of a collision.

  (13) It comprises a collision detection means for detecting a state corresponding to a vehicle collision, and when the collision is detected by the collision detection means, the recording means gives priority to the video output to the display means. May be recorded. In this way, it is possible to reliably record an image with a high possibility of recording the moment of collision. In particular, according to the configuration premised on the configuration of (2), an image in a direction in which the driver intends to drive the vehicle can be recorded, so that an excellent effect is exhibited.

  (14) When a video to be preferentially output to the display unit is determined from the plurality of vehicle peripheral images based on the operation state of the vehicle by the driver, recording to the recording unit as the reproducible data is performed. It is good also as a structure to perform. For example, on the premise of the configuration of (9), when the speed of the car is slower than a predetermined value and the winker is released, the video of the side camera is displayed on the indoor monitor, and the recording of the winker is displayed. It may be performed at the timing.

  (15) When reproducing the vehicle peripheral video data recorded in the recording means, it is preferable to provide a function of reversing the reproduced video horizontally or vertically. In this way, even if the camera that captures the vehicle surrounding image is installed upside down, the image can be reproduced in the correct orientation. Further, for example, a video captured by a rear view camera that outputs a video signal of a horizontally reversed video can be reproduced by being reversed horizontally.

(16) The operation state of the vehicle by the driver, the acquired vehicle state, and a plurality of vehicle peripheral images may be recorded on the recording unit as reproducible data in time synchronization. For example, by recording what the shift position is as the vehicle operation state by the driver, the engine is braked on the downhill, hitting the back, or parked, neutral, or parked. (ECO operation)
I understand.

  (17) Information indicating video preferentially output to the display means, operation state of the vehicle by the driver, the acquired vehicle state, and a plurality of vehicle peripheral images, and data that can be reproduced in time synchronization It is good to have a configuration for recording to the recording means.

  (18) A reproduction apparatus for reproducing data recorded on the recording means by the vehicle video recording apparatus according to any one of (1) to (17), wherein the vehicle peripheral video data recorded on the recording means is reproduced. When playing back, it is preferable to have a function of playing back the playback video by flipping it horizontally or vertically. The playback device may be mainly installed outside the vehicle, such as a personal computer, or may be configured as a function of a navigation device installed in the vehicle.

(19) A playback device for playing back data recorded in the recording means by the vehicle video recording device described in (17), based on information indicating a video output preferentially to the display means, It is preferable that a predetermined display indicating a video output with priority to the display unit is performed from among a plurality of vehicle peripheral images being reproduced. In this way, it is possible to easily grasp which video is displayed on the display means when the video is played back by the playback device later.
(20) It can be configured as a program for causing a computer to realize the function as the playback device described in (18) or (19).

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

It is a block diagram which shows the structure of the drive recorder which is preferable one Embodiment of this 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 example of the insertion method to the main unit of a memory card, and the attachment of the main unit to the vehicle. 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 additional camera, and the structure of a camera. It is a figure which shows the attachment state to the vehicle and imaging | photography range 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 example of a structure of a remote control, and the attachment position to a vehicle. It is a figure which shows the example of the display content which displays the image | 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 a display example of a reproduction screen.

FIG. 1 to FIG. 9 are diagrams showing the configuration of a drive recorder as a vehicle video recording apparatus as a preferred embodiment of the present 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) including a control unit 10, a remote controller 11, a GPS unit 12, a rear view camera 13, and an extension connected to the control unit 10 of the main unit 1. The camera 14 includes 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.

As shown in FIGS. 2 and 3A and the like, an AV output terminal 16b that is a terminal for outputting a video signal and an audio signal to the display device 16 and an external microphone 18 are provided on the front of the main unit 1. When the SD card 2 (see FIG. 4A) is inserted into the microphone terminal 18b that 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. Includes 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. 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 the SD card 2 is locked.

As shown in FIG. 3 (b), 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 rear surface of the main unit 1 (the surface opposite the front surface). And 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, each of these terminals is connected to a corresponding connector, and connected to a corresponding device (each unit) via a cord (cable) connected to each connector. 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 is connected to the external microphone 18 via the microphone connector 18a connected to the microphone terminal 18b. The control unit 10 also has a vehicle brake lamp line 33, a vehicle left turn signal line 32, a vehicle right turn signal line 31, and a vehicle speed signal line via a vehicle signal connection connector 40a connected to the vehicle signal connection terminal 40b. 30, connected to the ground wire of the vehicle and the ACC power source of the vehicle. Further, the control unit 10 is connected to the remote controller 11 via the remote control connector 11a connected to the remote control connection terminal 11b, and is connected to the GPS unit 12 via the GPS unit connection connector 12a connected to the GPS unit connection terminal 12b. Are connected to the rear view camera 13 via the rear view camera connection connector 13a connected to the rear view camera connection terminal 13b, and are connected to the extension camera 14 via the extension camera connection connector 14a connected to the extension camera connection terminal 14b. The front view camera 15 is connected to the front view camera 15 via the front view camera connection connector 15a connected to the view camera connection terminal 15b. 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 have different shapes.

The main unit 1 is installed in the vehicle. For example, as shown in FIG. 4 (b), in the vicinity of the driver's seat, the driver can easily take out the SD card 2, and the cable connected to each terminal described above does not interfere with the driving operation. Install. For example, as shown in FIG. 4B, the bottom surface is attached and fixed to the center console at the left front position of the driver's seat, the under cover of the instrument panel, or the like using double-sided tape. At this time, it is installed with the main body front side facing the right side of FIG. 4B and the main body rear side facing the left direction.

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 the photographed video. As shown in FIG. 5, the front view camera 15 is fixed to the windshield in the vehicle interior with a double-sided tape so that the lens faces the traveling direction as a direction for photographing the front of the vehicle. The fixed position is a position within 20% of the entire windshield from the upper part of the windshield in the vehicle interior (range indicated by a symbol d in the figure). The power of the front view camera 15 is supplied from the control unit 10.

  The extension camera 14 is a camera that can be mounted at an arbitrary position and can capture a vehicle peripheral image, and outputs an NTSC signal as a video signal of the captured image. For example, as shown in FIG. 6 (a), the interior direction (from the windshield to the vehicle rearward direction) is set as the direction for photographing, and is fixed to the windshield in the interior of the vehicle with double-sided tape. The power for the extension camera 14 is supplied from the control unit 10.

  As shown in FIG. 6B, the additional camera 14 has a normal image mode for outputting the captured video as it is, and a mirror image mode for outputting the captured video by reversing left and right, and a 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 photographing the vehicle front direction, and the mirror image mode may be set when photographing the indoor direction or the vehicle rear direction.

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 the photographed video. For example, as shown in FIGS. 7A and 7B, the rear view camera 13 is installed in the vicinity of the license plate outside the back door of the vehicle. The angles of view taken by the rear view camera 13 are shown in FIGS. FIG. 7C is a diagram showing a state in which the vehicle is 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 60 degrees (total of 120 degrees). FIG. 7D is a diagram showing a state in which the vehicle is viewed from the side of the vehicle, and shows an angle of view in the vertical direction when displayed on the display device 16, and the angle of view is relative to the shooting direction. 43 degrees on the left and right (86 degrees overall).

The power supply wiring of the rear view camera 13 and the video signal wiring 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 plus side wiring 93 of the reverse lamp of the vehicle. That is, the reverse lamp positive wiring 93 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 via the power supply line 81 and the fuse 82. A 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 lever switch 92 of the shift lever. The other end of the reverse lamp 94 is connected to the negative terminal of the battery and the other end of the back position switch 92 is connected. Are connected to the positive terminal of the battery. One end of the ground wire 83 is connected to an existing screw or the like that is not painted on the vehicle, and the other end is connected to the ground line of the rear view camera 13. The screw that is not painted on the vehicle is connected to the negative terminal of the battery 91. It is connected to the. The vehicle back position switch 92 is turned on when the shift lever is in the back position, and turned off when the shift lever is not in the back position. As a result, while the shift lever is in the back position, a current flows through the plus side wiring 93 of the reverse lamp of the vehicle, and the reverse lamp 94 is lit. At this time, power is supplied from the electro tap 83 to the rear view camera 13 via the power line 81 and the fuse 82. The rear view camera 13 outputs a video signal while power is supplied. This video signal is input to the control unit 10 via 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-side wiring 93 of the reverse lamp of the vehicle, the reverse lamp 94 is turned off, and power is not supplied to the rear view camera 13. . As a result, while the shift lever is in a 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.

  The GPS unit 12 is installed at the front position of the dashboard, receives a GPS signal, obtains the current position from the received GPS signal, and obtains position information (longitude, latitude), etc. of the obtained current position in NMEA format data. 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. 9 (b), three installation patterns are used, such as a center console or an instrument panel undercover, where the driver can easily operate and affix the back side using double-sided tape.
The display device 16 is a liquid crystal monitor that receives and displays an NTSC signal such as a car navigation system or a car TV.

The acceleration sensor 20 is provided inside the main unit 1 and is connected to the control unit 10. After the main unit 1 is fixed to the vehicle (for example, after fixing as shown in FIG. 4B), the controller 10 simultaneously presses both the first button 11p and the second button 11q of the remote controller 11 for 2 seconds or more. If detected, perform initial setting. In this initial setting, the vehicle is moved straight back and forth, the direction of acceleration generated when the vehicle is moved back and forth is detected by the acceleration sensor 20, and the three axes of the acceleration sensor 20 (x-axis, y-axis, z-axis) and the vehicle After that, the acceleration sensor 20 outputs a value in which the longitudinal direction of the vehicle is the X axis, the lateral direction of the vehicle is the Y axis, and the vertical direction of the vehicle is the Z axis. This is a setting process. The forward direction is the positive direction of the X axis, the left direction is the positive direction of the Y axis, and the upward direction is the positive direction of the Z axis. A known method can be used as such an initial setting method.
The speaker 21 is provided inside the main unit 1 and is connected to the control unit 10.

  The control unit 10 includes a microcomputer including a CPU, ROM, RAM, flash memory, various peripheral circuits, an interface, and the like, and is connected to each unit illustrated in FIG. 1 via an interface that inputs or outputs each signal. ing. When the ACC of the vehicle is turned on, the control unit 10 is supplied with power and starts operating. The control unit 10 expands the OS and application program recorded in the flash memory on the RAM by the boot loader recorded in the ROM, and executes the OS and application program on the RAM, thereby performing various processes described below. Run to implement various functions. The OS is a multitasking OS, and implements parallel processing by switching and executing various application programs.

  The controller 10 acquires 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 at any time after the power is turned on. Data / signal state recording processing is performed on the memory card 2 mounted in the card slot 19 to record these data and signal states in a file at a predetermined time interval (for example, 30 times per second).

In addition, the control unit 10 acquires images of the front view camera 15, the rear view camera 13, and the additional camera 14 as a plurality of vehicle peripheral images and displays them on the display device 10, and data / signal state recording processing. The audio / video recording process for recording the data on the memory card 2 as reproducible data by synchronizing the vehicle state to be recorded and the video around the vehicle with time.

  The control unit 10 includes a video capture circuit that captures NTSC signals from the front view camera 15, the rear view camera 13, and the additional camera 14 as video data on a RAM as peripheral circuits. In addition, the control unit 10 includes a video memory (VRAM) or the like as a peripheral circuit, and the image data to be output to the display device 16 via the electronic switch described later as drawing data drawn in the video memory as an NTSC signal. A generation circuit is provided.

  The controller 10 performs camera video display processing for transferring each captured video data to the video memory and displaying it on the display device 16 as needed after the power is turned on. The camera image display process performs a process of outputting the image of the front view camera 15 to the display device 16 as a default process. Further, in the camera image display processing, when the pressing of the first button 11p of the remote controller 11 is detected, an image to be transferred to the video memory and displayed on the display device 16 is displayed in the front view camera 15, the extension camera 14, and the rear view camera. The process of switching the order of 13 images is performed. For example, if the driver presses the first button 11p twice after starting the apparatus and the shift position is in the back, the image was taken by the rear view camera 13 as shown in FIG. The video is displayed in 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 that is 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 no longer input to the video signal from the rear view camera 13, a process of switching the video that is 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 displays the image taken by the rear view camera 13 in the display area 16a of the display device 16 as shown in FIG. This situation can be confirmed by looking at the display device 16. As described above, the control unit 10 determines and outputs an image to be output preferentially to the display device 16 based on the operation state of the vehicle by the driver, so the driver switches the image with the remote controller 11 together with the driving operation. There is no need to output a video in the direction of traveling, and an appropriate video in accordance with the driver's intention is displayed at an appropriate timing.

  In the video / audio recording process, after the power is turned on, the audio acquired from the built-in microphone 17 and the audio data acquired from the external microphone 18 are recorded together with the video data captured by the front view camera 15, the rear view camera 13, and the additional camera 14. It is processing to do. 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. Are encoded in MPEG format and recorded in three files.

The file name of the signal state file to be recorded by the data / signal state recording process and the file name of the three MPEG files to be recorded by the video / audio recording process are determined from the real-time clock (clock) provided as a peripheral circuit of the microcomputer. Record using the date and time when the file started recording. Therefore, by reading the date and time of this file name, the position recorded on the same date and time of the data of each file can be specified. Therefore, it is possible to perform a reproduction process for reproducing these files while keeping temporal synchronization. Note that the recording of these files is terminated when the supply of ACC power to the main body is interrupted. The control unit 18 is provided with a backup power source having a battery for operating the control unit 18 and each connected unit for a time required for the end of file recording (5 seconds) when the ACC power source is cut off. When the interruption of the ACC power supply is detected, the OS notifies the recording process, and the recording end process of all files is executed. Therefore, each recording file is generated between the time when the vehicle is turned on by ACCON and the time when the power is turned off by ACCOFF.

  When a long press (continuous press for 2 seconds or more) of the second button 11q of the remote controller 11 is detected, the control unit 10 plays back the video from the beginning of the currently recorded MPEG file for the video and audio of the front view camera 15 Playback processing is started (so-called chasing playback is started while recording). For a fixed time (5 seconds) from the start of the playback process, as shown in FIG. 11, the operation help 82, camera information 85 of the playback video, playback status 84, and playback video date and time 83 are displayed superimposed on the playback video 81. . These displays are also performed for a predetermined time (3 seconds) even when pressing of any button of the remote controller 11 is detected during the reproduction process.

  The operation help 82 indicates what processing is performed when which button of the remote controller 11 is pressed. As shown in FIG. 11, the correspondence between the button position of the remote controller 11 and the processing content in the state in which the remote controller 11 of FIG. 9 is rotated 45 degrees clockwise is shown. When the button shown in black in the figure is pressed , The process described in characters on the right side is executed. For example, the button shown in black in the schematic diagram of the remote controller 11 on the left side of the portion drawn as “play / stop / slow” in FIG. 11 corresponds to the second button 11q, and only the second button 11q is pressed. Each time is detected, the screen display process (that is, the content of the playback process of the control unit 10) is switched in the order of playback → stop → slow. The current state of the screen display process is displayed in the playback state 84 as “playing”, “stopped”, or “slowing”. In addition, information indicating which camera is the camera that recorded the currently reproduced video is displayed as camera information 85. The camera information 85 is “CAM1” when displaying the video of the file recorded by the front view camera 15, “CAM2” when displaying the video of the file recorded by the extension camera 14, and the file recorded by the rear view camera 13. “REAR” is displayed while the video is displayed. The playback video date and time 83 is an area for displaying the video date and time of the file being displayed, and the recording date and time of the currently displayed frame based on the recording date and time of the top of the file acquired from the file name and the frame information of the file To display.

When it is detected that only the first button 11p is pressed during the reproduction process, the file to be reproduced is switched, and the video is reproduced from the frame having the same date and time as the currently reproduced frame. In this way, even if the file to be played is switched, the video is displayed continuously in time. As a result, the playback video date and time 83 is continuously advanced even when the file to be played back is switched.
If it is detected that only the third button 11r is pressed during the reproduction process, the reproduction process is terminated and the camera video display process is performed (reproduction end).

  When simultaneous pressing of the second button 11q and the third button 11r is detected during the reproduction process, the file to be reproduced is switched from the currently reproduced file to the one old file. That is, referring to the file name, the file recorded immediately before the file currently being reproduced is identified 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 playing file, the currently playing 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 currently reproduced file to a new file. That is, referring to the file name, the file recorded immediately after the file currently being reproduced is identified 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 newer file than the currently playing file, the currently playing file is played from the beginning.

As described above, by operating the remote controller 11, the images of the front view camera 15, the extension camera 14, and the rear view camera 13 are switched to display a desired current image on the display device 16, or the front view camera 15 and the extension camera 14 are displayed. The video shot by the rear view camera 13 and recorded on the memory card 2 is played back, and the playback video of the front view camera 15, the additional camera 14, and the rear view camera 13 is switched by the operation of the remote controller 11. Can be displayed on the display device 16. The control unit 10 performs control to switch to at least one of the vehicle surrounding images acquired as described above or only the reproduced video of at least one of the images recorded on the memory card 2.

  In the present embodiment, the control unit 10 performs control 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 video. However, the control unit 10 further determines a video to be output preferentially to the display device 16 and displays a video indicating setting items relating to control and a vehicle state recorded in the memory card 2. A video may be displayed. Further, the control for determining and outputting the video to be output with priority to the display device 16 is the control for switching to only the video, but the control for switching to the video in which a predetermined video is superimposed on the video, At least one of control for displaying a video in a larger size than other video and control for displaying the video in the center of the display device 16 than other video may be used.

  According to the processing of the present embodiment, regardless of the video output to the display device 16, the acquired vehicle state and the plurality of vehicle peripheral videos acquired from the front view camera 15, the rear view camera 13, and the additional camera 14 Recording on the memory card 2 is performed. 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 video is always recorded from ACCON to ACCOFF. However, the acceleration sensor 20 does not always record or always records the state corresponding to the collision of the vehicle. When detected, regardless of the video output to the display device 16, the vehicle state and the vehicle peripheral video acquired from the front view camera 15, the rear view camera 13, and the additional camera 14 are recorded in the memory card 2. It is good also as a structure. In this way, it is possible to reliably record a plurality of vehicle peripheral images at the time of a collision. Further, when a collision is detected, the video output to the display device 16 may be preferentially recorded on the memory card 2. In this way, it is possible to reliably record an image with a high possibility of recording the moment of collision.

  In this embodiment, the video of the rear view camera 15 that captures the rear of the vehicle is recorded. However, the present invention is not limited to this, and an arbitrary video may be recorded. Moreover, you may make it acquire and record arbitrary states also as the operation state of a vehicle. For example, a side camera that acquires the vehicle right side image and the vehicle left side image is provided, and the control unit 10 is connected to the in-vehicle LAN, and the operation state of the vehicle by the driver is less than a predetermined vehicle speed from a packet flowing through the in-vehicle LAN (for example, In the state of 10 km / h or less), when it is detected that the right turn signal has been output, control is performed to output the vehicle right-side image with priority over other images, while the vehicle speed is below a predetermined vehicle speed (for example, 10 km) When it is detected that the left turn signal is released in the state of / h or less), it may be configured to control to output the left side image of the vehicle with priority over other images. In this way, for example, when leaving the parking lot in either the left or right direction, or when trying to make a turn at an intersection with poor visibility, the vicinity of the vehicle in the direction in which the turn signal is emitted at a predetermined vehicle speed or less. The video is displayed on the display device 16. Therefore, the driver can easily check the vehicle periphery image in that direction by looking at the display device 16 without performing a special operation for display in such a situation requiring attention. On the other hand, when the vehicle speed exceeds the predetermined vehicle speed, even if the winker is taken out, the vehicle peripheral image in the direction in which the winker is taken out is not displayed on the display device 16. Therefore, the driver does not feel bothered or distracted from the consciousness due to the vehicle peripheral image being displayed on the display device 16 while traveling at a predetermined vehicle speed or higher. In addition, when the control unit 10 determines a video to be output preferentially to the display device 16 based on the operation state of the vehicle by the driver from among a plurality of vehicle peripheral images, the control unit 10 stores the memory card as reproducible data. 2 may be recorded. For example, when the vehicle speed is slower than a predetermined value and the winker is released, the side camera image may be displayed on the indoor monitor, and the recording may be performed at the timing when the winker is released. .

When reproducing the data of the vehicle surroundings recorded on the memory card 2, it is preferable to provide a function of reversing the reproduced image horizontally and vertically. In this way, even if the camera that captures the vehicle surrounding image is installed upside down, the image can be reproduced in the correct orientation. Further, for example, a video captured by a rear view camera that outputs a video signal of a horizontally reversed video can be reproduced by being reversed horizontally.

In addition, it is good to set it as the structure which records on the memory card 2 as data which can reproduce | regenerate the operation state of the vehicle by a driver, the acquired vehicle state, and several vehicle periphery image | video in time synchronization. For example, by recording what the shift position is as the vehicle operation state by the driver, the engine is braked on the downhill, hitting the back, or parked, neutral, or parked. (ECO operation) etc. The information indicating the video output preferentially 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. Processing for recording on the card 2 may be performed.

  In the present embodiment, the camera video display process is performed by executing a program by a computer and a video to be output is generated. However, even if the video cannot be generated by executing the program by the computer, the display device 16 When a video signal to be output with priority is detected, hardware for performing control to output the video with priority over other videos may be provided. 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 additional camera 14 when the shift position is in the back. An electronic switch (video signal selector) is provided in the control unit 10. 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 the electronic switch. The electronic switch receives a video signal as a video signal from the rear view camera 13. If the video signal from the rear view camera 13 is output to the display device 16 and no video signal is input to the video signal from the rear view camera 13, the output from the video generation circuit is output to the display device 16. Output to. In addition, 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 added to the video signal from the rear view camera 13 during the above-described reproduction processing. When an input signal is detected, the reproduction process is paused. With the configuration shown in 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. During this state, 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 only by setting the shift position to the back. As described above, the control unit 10 determines and outputs an image to be output preferentially to the display device 16 based on the operation state of the vehicle by the driver, so the driver switches the image with the remote controller 11 together with the driving operation. There is no need to output a video in the direction of traveling, and an appropriate video in accordance with the driver's intention is displayed at an appropriate timing. Since the camera video display processing is realized by executing the program by the microcomputer, for example, because the microcomputer is in the process of starting the OS or the processing load of the microcomputer is high, the camera video display processing is performed. There is a case where it is not possible to generate a video. 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 process. However, when a 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 that the driver's operation state of the vehicle Can be immediately reflected, and the video from the rear view camera 13 can be displayed on the display device 16.

Further, a pattern matching process for the video data acquired from the rear view camera 13 of the control unit 10 as to whether or not a person is reflected in the video output preferentially to the display device 16 like the video of the rear view camera 13. It is good to perform the process which emits an alarm sound from the speaker 21, when it matches with the pattern corresponded to a person and it matches. In this way, it is possible to easily and immediately take avoidance actions such as stopping the vehicle when an alarm sounds. In addition, the driver can easily confirm whether or not the alarm target is an avoidance target by simply looking at the display device 16 when the alarm sounds without performing any special operation. . For example, if there is a person in the side camera image in the direction of the turn signal, the alarm sounds, the back position is displayed, or there is a person in the back camera image. 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 video that is a video output preferentially to the display device 16, is an RCA terminal, while a front view camera that is a video input terminal for another video. 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 which video input terminal should be connected with a video camera (rear view camera 13) to be preferentially output. The rear-view camera connection terminal 13b, the front-view camera connection terminal 15b, and the additional camera connection terminal 14b are arranged in the back surface of the main unit 1, and are the main unit that is a surface facing the surface on which these video input terminals are provided. 1 is provided with a memory card slot 19 serving as an insertion slot for the memory card 2. In this way, the cables connected to the video input terminal do not get in the way when the memory card 2 is inserted into the memory card slot 19 or removed from the memory card slot 19. Further, when the memory card 2 is inserted into the memory card slot 19 or removed from the memory card slot 19, a problem that the cables connected to the video input terminal are hooked and pulled out hardly occurs.

The data recorded on the memory card 2 can be reproduced by using the program on the personal computer after the memory card 2 is removed from the memory card slot 19 and inserted into the personal computer. For example, a viewer screen 100 as shown in FIG. 12 is displayed by processing by a program on the personal computer. As shown in FIG. 12, the viewer screen 100 includes a menu bar 101, a display area 102, a display switching button 103, a volume knob 104, a speed display 105, a brake blinker display 106, an acceleration display 107, a latitude / longitude display 108, and display operation buttons. 109, an acceleration sensor graph 110, a date / time display 111, a map 112, and a playlist list 113.

  The display area 102 includes a front view camera video playback area 102a, an additional camera video playback area 102b, and a rear view camera video playback area 102c. When reproducing the data of the video around the vehicle of the front view camera / additional camera / rear view camera recorded on the memory card 2, it has a function of reproducing the reproduced video by flipping it horizontally or vertically. When the front view camera video playback area 102a, the additional camera video playback area 102b, and the rear view camera video playback area 102c are right-clicked, the playback video is switched in the order of left / right inversion, up / down inversion, left / right up / down inversion, and no inversion.

Further, based on the information indicating the video output preferentially to the display device 16 described above, the predetermined video indicating the video output preferentially to the display device 16 from among the plurality of vehicle peripheral images being reproduced. The display may be configured to be displayed. In this way, it is possible to easily grasp which video is being displayed on the display device 16 when the video is played back later by a playback device such as a personal computer. For example, the start date and time and the end date and time 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 while the video of that date is played back. .

The viewer screen 100 is a screen displayed on a personal computer. However, the viewer screen 100 may be configured to output to a screen of a navigation device or the like installed in the vehicle or to the display device 16.

  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, and various changes 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 the technical common sense of those skilled in the art is applied to form the embodiment. be able to.

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

Claims (4)

By Film image recording apparatus comprising a reproducing apparatus for reproducing the plurality of vehicle surroundings images recorded in a plurality of files,
Based on the video recording apparatus records information indicating an image that is preferentially outputted to the display unit from a plurality of vehicles near video file from a plurality of vehicles near video being reproduced, on said display means A playback apparatus comprising a function of performing a predetermined display indicating a video output with priority over the other. The vehicle video recording apparatus having a function that records by obtaining a plurality of vehicle surroundings image,
A function of determining a video to be preferentially output to the display unit from the plurality of vehicle peripheral images, and performing a control to output to the display unit;
A file for recording information indicating an image that is preferentially outputted to the display means, the files and for recording the plurality of vehicles near the image as a separate file, which can reproduce both files is temporally synchronized A video recording apparatus for a vehicle, comprising: a function for recording as a file to a recording unit. A playback device for playing back a vehicle peripheral image recorded in the other file recorded by the vehicle video recording device according to claim 2 ,
Based on a file that records information indicating video output preferentially to the display means, a predetermined video indicating a video output preferentially to the display means from among a plurality of vehicle peripheral images being reproduced A playback device comprising a display function. Program for realizing the functions of the playback equipment according to the computer to claim 1 or 3.