JP2014102800A - Drive recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To start recording processing automatically without a user being conscious of a setting of the recording processing.SOLUTION: A drive recorder 1 includes: a camera 11 for photographing a periphery of a vehicle; an acceleration sensor 13 for outputting acceleration information obtained by detecting acceleration of the vehicle; a GPS module 14 for acquiring positional information indicating a position of the vehicle; a recording section 18 for recording video data obtained by photographing; a display 16 for displaying the video data recorded by the recording section 18; an operation section 15 for instructing various settings by a user's operation; and a control section 10 for reproducing the video data recorded by the recording section 18 on the display 16 while recording the video data from the camera 11 to the recording section 18. The control section 10 stores so as to delete the video data at that time and immediately before when an abnormality is detected on the basis of the acceleration information, and stops the recording processing when a stop operation of the recording processing is performed, and starts the recording processing when the stop operation of the recording processing is completed.

Description

  The present invention relates to a drive recorder, and more particularly to a drive recorder that automatically starts a recording process after the recording process stops.

  2. Description of the Related Art In recent years, drive recorders that are mounted on vehicles and record images when an accident or abnormality occurs are rapidly spreading.

  The drive recorder includes, for example, a camera for photographing the surroundings of the vehicle, an acceleration sensor for detecting an impact or abnormality, and a recording medium for recording video data based on the video photographed by the camera, and is running by the camera. Always record video around the. Then, when an abnormality such as an accident or sudden braking / steep steering wheel is detected based on the output from the acceleration sensor, images of a predetermined time before and after that point are stored in the recording medium as video data (for example, Patent Document 1).

  Recently, a display unit such as a monitor is provided, and a user operates an operation unit provided in advance on a housing or the like, and the video data recorded on the recording medium is designated. Has been proposed and commercialized.

JP 2010-128606 A

  By the way, in such a drive recorder, when the drive recorder is manually operated such as during reproduction of video data, the video recording process is interrupted. For this reason, when the video data reproduction process or the like is completed, the user needs to manually operate the operation unit to set the start of the recording process in order to resume the video recording process.

  However, since the user normally recognizes that the recording process by the drive recorder is always performed, the user may forget to record the video while the vehicle is running without setting the recording process after the reproduction process. There was a problem.

  Therefore, the present invention has been made in view of the problems in the above-described conventional technology, and a drive recorder that can automatically start recording processing without the user being aware of the setting of recording processing. The purpose is to provide.

  In order to achieve the above object, the present invention provides an imaging unit that captures an image of the surroundings of a vehicle and outputs the obtained video data, and an acceleration that detects acceleration of the vehicle and outputs acceleration information indicating the detected acceleration. A sensor, a position information acquisition unit that acquires position information indicating the position of the vehicle, a recording unit that records video data obtained by the shooting, and a display unit that displays the video data recorded in the recording unit; An operation unit operated by a user and instructing various settings, and a recording process for recording the video data output from the photographing unit in the recording unit, and the video data recorded in the recording unit are displayed. A control unit that executes a playback process to be played back by the video unit, and when the abnormality of the vehicle is detected based on the acceleration information, the video data at the time of detection and the video data immediately before A drive recorder that stores data so that it cannot be erased, and the control unit stops the recording process when the operation for stopping the recording process is performed, and the operation for stopping the recording process ends. The recording process is started.

  According to the present invention, since the recording process is automatically started when the operation of stopping the recording process is completed, the video can be recorded without the user being aware of the setting of the recording process.

  In the drive recorder, the control unit includes a counter for counting time, and when the operation for stopping the recording process is performed, the counter starts counting, and the value of the counter is set in advance. When the predetermined value is reached, the recording process can be started. Thereby, when it is determined that the operation on the apparatus is completely completed, the stopped recording process can be resumed.

  In the drive recorder, the operation of stopping the recording process is the execution of the reproduction process, and the control unit can start counting by the counter when the reproduction process is completed.

  In the drive recorder, the operation of stopping the recording process is a user operation on the operation unit, and the control unit can start counting by the counter when the operation unit is operated.

  In the drive recorder, the control unit can reset the count of the counter when the operation unit is operated before the value of the counter reaches the predetermined value. Thus, it is possible to prevent the recording process from being executed before determining that the operation on the apparatus is completely completed, and to suppress the unnecessary execution of the recording process.

  The said drive recorder WHEREIN: The said control part can start the said recording process, when it is judged that the said vehicle moved based on the said positional information. Thus, when it is determined that the vehicle is traveling, the recording process that has been stopped can be resumed.

  In the drive recorder, the display unit includes an indicator for notifying the operation state to the outside, and the control unit can control the display unit so that the operation state is not notified by the indicator. Thereby, when the suspicious person enters the vehicle, the inside of the vehicle can be monitored without being noticed by the suspicious person.

  As described above, according to the present invention, the recording process can be automatically started without the user being aware of the recording process setting.

It is a block diagram which shows one Embodiment of the drive recorder which concerns on this invention. It is a flowchart for demonstrating a security mode function. It is a flowchart for demonstrating an apparatus abnormality prevention guidance function. It is a flowchart for demonstrating the flow of a recording process.

  Next, an embodiment for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an embodiment of a drive recorder according to the present invention. The drive recorder 1 includes a camera 11, a microphone (hereinafter referred to as "microphone") 12, an acceleration sensor 13, and a GPS (Global Positioning System) module. 14, an operation unit 15, a display unit 16, an audio output unit 17, a recording unit 18, and an input / output interface (hereinafter referred to as “input / output I / F”) 19.

  The camera 11 uses, for example, a charge coupled device (CCD), a complementary metal oxide semiconductor (COMS) image sensor, or the like as an image sensor, and performs various signal processing on an image signal based on light received by the image sensor to generate an image. A signal is generated and supplied to the control unit 10 described later.

  The microphone 12 collects surrounding sounds, generates a sound signal, and supplies the sound signal to the control unit 10.

  For example, the acceleration sensor 13 detects acceleration, inclination, impact, and the like in three axis (X, Y, Z) directions, generates acceleration information indicating the detected acceleration, and supplies the acceleration information to the control unit 10.

  The GPS module 14 receives radio waves from a plurality of artificial satellites constituting the GPS with an antenna (not shown), generates position information indicating the coordinates (longitude and latitude) of the current position based on the received radio waves, and controls the control unit 10. To supply.

  The operation unit 15 is, for example, various keys provided on the housing or the like of the drive recorder 1, generates an operation signal corresponding to a user operation, and supplies the operation signal to the control unit 10.

  The display unit 16 includes, for example, a monitor for displaying a video signal and an indicator for indicating an operation state of the drive recorder 1 and the like. The monitor is, for example, an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence) display, and displays a video signal supplied from the camera 11 to the control unit 10. The indicator is composed of, for example, an LED (Light Emitting Diode), and by turning on / flashing the LED or changing the color of the LED, whether or not the drive recorder 1 is being activated or whether an image is being recorded. The operation state of the drive recorder 1 such as whether or not is displayed.

  The audio output unit 17 is, for example, a speaker, and outputs an audio signal supplied from the microphone 12 to the control unit 10. For example, when the drive recorder 1 is activated, the audio output unit 17 outputs a notification sound for notifying the user that the drive recorder 1 has been activated.

  The recording unit 18 includes a recording medium, and records a video signal supplied from the camera 11 to the control unit 10 as video data based on the control of the control unit 10 and supplies the video signal from the microphone 12 to the control unit 10. The recorded audio signal is recorded as audio data. Further, the recording unit 18 reads out video data and audio data recorded on the recording medium based on the control of the control unit 10, and supplies them to the control unit 10. Furthermore, the recording unit 18 records position information when an accident or abnormality is detected.

  For example, an SD memory card can be used as the recording medium. The recording medium is not limited to this example. For example, an HDD (Hard Disc Drive), an SSD (Solid State Drive), or the like may be used.

  The input / output I / F 19 is an interface for exchanging various data with an external device, and includes, for example, an external monitor output terminal, a USB (Universal Serial Bus) input / output terminal, and the like.

  The control unit 10 controls the overall operation of the drive recorder 1, for example, a recording process for recording a video signal and an audio signal obtained by the camera 11 and the microphone 12 on the recording medium of the recording unit 18 as video data and audio data. Then, the video data and the audio data recorded on the recording medium of the recording unit 18 are read out, and the display unit 16 and the audio output unit 17 are used to perform reproduction processing for reproducing the video and audio.

  In addition, the control unit 10 determines whether an accident or abnormality has occurred based on the acceleration information supplied from the acceleration sensor 13, and the vehicle is running based on the position information supplied from the GPS module 14. Judge whether there is. When it is determined that an accident or abnormality has occurred, the control unit 10 stores the video data and audio data at the time when the accident or abnormality has occurred, and the video data and audio data immediately before the video data and audio data. Prevent erasure from storage media.

  The control unit 10 includes a counter 20 and counts the time after the recording process is stopped. When a threshold value is set in advance in the counter 20 and the value of the counter 20 reaches this threshold value, the control unit 10 determines that the operation of stopping the recording process such as the reproduction process or the operation by the user has ended, Resume the recording process.

  The controller 10 is connected to a vehicle accessory power supply (hereinafter referred to as “ACC”), and when the ACC is supplied, it is determined that the vehicle power is turned on.

  Furthermore, the control unit 10 includes a storage area (not shown). In this storage area, for example, when an abnormality or the like of the drive recorder 1 occurs, a voice guidance for notifying the user of an abnormality is provided. Audio data and the like are stored in advance.

  Here, functions provided in the drive recorder 1 according to the present embodiment will be described. The drive recorder 1 includes an auto recording function, a security mode function, a device abnormality prevention guidance function, and an abnormal point marking function in addition to the video recording function of the conventional drive recorder.

  The auto-recording function stops video and audio recording processing when the user performs playback processing during recording processing, or when manual operation is performed to perform various settings. This is a function for automatically starting the recording process at a predetermined timing. In this way, by automatically starting the recording process after the recording process is stopped, the video and audio around the vehicle can be recorded without the user being aware of the setting of the recording process.

  The security mode function does not perform an operation for notifying the user of the operation state of the drive recorder 1, such as indicator lighting / flashing when the drive recorder 1 is started, output of a start sound, and indicator lighting / flashing during startup. It is a function to make it. When the security mode function is set to “ON” by the user's operation, the control unit 10 signals to the display unit 16 and the audio output unit 17 for notifying the operation state of the drive recorder 1 at the time of activation and during activation. Do not supply.

  Here, the camera 11 is usually arranged so as to photograph the front of the vehicle, but when this function is used, for example, the camera 11 is arranged facing the inside of the vehicle so that the inside of the vehicle can be photographed. In addition, a power supply means such as a battery is provided outside, and the power required for operating the drive recorder 1 is supplied from the power supply means to the drive recorder 1, thereby turning off the power of the vehicle during parking or the like. Even in this state, the drive recorder 1 can be continuously operated to record the state in the vehicle. Accordingly, since it cannot be determined from the outside that the drive recorder 1 is operating, for example, even when a suspicious person enters the vehicle during parking, the inside of the vehicle can be monitored.

  The device abnormality prevention guidance function is a function that warns the user by voice guidance when an abnormality occurs in the drive recorder 1, such as when a recording medium such as an SD memory card is not installed. Thereby, it is possible to notify the user that the recording process cannot be executed when the recording medium is not loaded.

  The abnormal point marking function is a function of storing a point where an accident or abnormality has occurred and marking the point on a map displayed on an externally connected device. For example, by connecting a terminal such as a PC capable of displaying a map to the drive recorder 1 via the input / output I / F 19 and transmitting location information when an accident or abnormality has occurred to the terminal, the accident or abnormality can be detected. The point where it occurred can be clearly displayed.

  Next, the operation of the drive recorder 1 having the above configuration will be described with reference to the flowcharts shown in FIGS.

  First, the flow of processing when setting the security mode will be described with reference to the flowchart shown in FIG.

  In step S1, when ACC is supplied from the vehicle on which drive recorder 1 is mounted, drive recorder 1 is activated (step S1), and whether or not the security mode is set to “ON” by control unit 10 is determined. Determination is made (step S2). When it is determined that the security mode setting is “ON” (step S2; Yes), the control unit 10 sets the display unit 16 and the audio output unit 17 so as not to output the video signal and the audio signal. (Step S3), a series of processing ends.

  On the other hand, when it is determined that the security mode setting is “OFF” (step S2; No), a series of processing ends.

  Since the above-described processing is executed when the drive recorder 1 is activated, the setting at the time of activation is retained even when the security mode setting is changed during activation.

  Next, the flow of processing of the device abnormality prevention guidance function will be described with reference to the flowchart shown in FIG.

  In step S <b> 11, the control unit 10 confirms the state of the recording unit 18 and the acceleration sensor 13 and determines whether there is an abnormality in the drive recorder 1. When it is determined that there is no abnormality in the drive recorder 1 (step S11; No), the process returns to step S11, and the control unit 10 confirms the state of the device at predetermined time intervals set in advance, for example.

  On the other hand, when it is determined that there is an abnormality in the drive recorder 1 (step S11; Yes), the control unit 10 has an abnormality in the drive recorder 1 stored in the storage area, such as a recording medium not inserted. Is supplied to the voice output unit 17. And the audio | voice output part 17 outputs the audio | voice data supplied from the control part 10 (step S12). And the process mentioned above is cyclically performed for every predetermined time set beforehand.

  In addition, you may make it confirm only at the time of starting of the drive recorder 1, for example about the state confirmation of the part with a low possibility that abnormality will generate | occur | produce during use, such as the acceleration sensor 13. Thereby, an unnecessary confirmation process can be suppressed.

  Next, the flow of recording processing for recording video and audio will be described with reference to the flowchart shown in FIG.

  In step S21, when the recording process is started, the control unit 10 supplies the video signal and the audio signal supplied from the camera 11 and the microphone 12 to the recording unit 18 as video data and audio data. The recording unit 18 records the video data and audio data supplied from the control unit 10 on a recording medium. At this time, the control unit 10 may supply video data and audio data to the display unit 16 and the audio output unit 17, and output video and audio from the display unit 16 and the audio output unit 17.

  Next, in step S22, it is determined whether or not an operation for stopping the recording process being executed has been performed. Here, the operation of stopping the recording process indicates, for example, a process of reproducing video data and audio data recorded on the recording medium of the recording unit 18, an operation on the operation unit 15 by the user, and the like.

  When it is determined that the operation for stopping the recording process is not performed (step S22; No), the control unit 10 continues the recording process. Then, based on the acceleration information supplied from the acceleration sensor 13, it is determined whether there is an accident or abnormality (step S23).

  Here, when the value indicated by the acceleration information supplied from the acceleration sensor 13 exceeds a preset threshold value, it is determined that there is an accident or abnormality (step S23; Yes), and the control unit 10 The file recorded on the recording medium of the recording unit 18 at the time when the abnormality is detected and the file recorded immediately before the file are saved, and the position information supplied from the GPS module 14 at the time of detection is stored in an accident or abnormality. Is stored in the recording medium in association with the file at the time of detecting (steps S24 and S25). Then, the process returns to step S22. If it is determined that there is no accident or abnormality (step S23; No), the process returns to step S22.

  On the other hand, when it is determined in step S22 that the operation for stopping the recording process has been performed (step S22; Yes), the control unit 10 stops the recording process being executed (step S26). Then, it is determined whether or not the operation for stopping the recording process is an operation for performing the reproduction process (step S27).

  If it is determined that the operation is to perform the reproduction process (step S27; Yes), the control unit 10 reads the designated file from the recording medium of the recording unit 18, and displays the video data and audio data on the display unit 16 and the audio output. The video and audio are output from the display unit 16 and the audio output unit 17 (step S28).

  Next, it is determined whether or not the reproduction process has been completed (step S29). If it is determined that the reproduction process has been completed (step S29; Yes), the process proceeds to step S30. If it is determined that the reproduction process has not been completed (step S29; No), the process is performed. Returning to step S28, the reproduction process is continued.

  On the other hand, if it is determined in step S27 that the operation for stopping the recording process is not an operation for performing the reproduction process (step S27; No), the process proceeds to step S30.

In step S <b> 30, counting is started by the counter 20 provided in the control unit 10.
Then, it is determined whether or not the value indicated by the counter 20 has reached a preset threshold value (step S31).

  When it is determined that the value of the counter 20 has reached the threshold value (step S31; Yes), the control unit 10 resumes the recording process, and the video signal and the audio signal supplied from the camera 11 and the microphone 12 are converted into the video data and the audio signal. The sound data is recorded on the recording medium of the recording unit 18 (step S32).

  On the other hand, when it is determined that the value of the counter 20 has not reached the threshold value (step S31; No), it is determined whether or not the user has operated the operation unit 15 (step S33). When it is determined that the user's operation has been performed based on the operation signal from the operation unit 15 (step S33; Yes), the control unit 10 resets the count of the counter 20 (step S34), and the process proceeds to step S30. Return.

  If it is determined in step S33 that no user operation has been performed (step S33; No), the process proceeds to step S35.

  In step S35, the control unit 10 compares the current position information supplied from the GPS module 14 with the previous position information, and whether or not the vehicle has moved based on changes in latitude and longitude indicated by the position information. Judging. Here, when there is a change in latitude and longitude, it is determined that the vehicle is traveling.

  If it is determined that the vehicle has moved (step S35; Yes), the process proceeds to step S32, and the recording process is resumed. On the other hand, when it is determined that the vehicle is not moving (step S35; No), the process returns to step S31.

  As described above, according to the present embodiment, after the recording process is stopped, the recording process is automatically resumed, so that the video and audio around the vehicle can be recorded without the user being aware of the setting of the recording process. It becomes possible to record.

  In addition, if the operation unit 15 is operated before the counter value reaches the predetermined value after the operation for stopping the recording process is completed, the recording process is not started and the operation on the apparatus is completely performed. Since the recording process is not performed until it is determined that the process has been completed, it is possible to suppress the execution of an unnecessary recording process.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments of the present invention, and various modifications and applications are possible without departing from the scope of the present invention. It is. For example, in the above-described example, when an accident or abnormality is detected, the file at that time and the immediately preceding file are saved. However, the present invention is not limited to this, for example, immediately after the time when an accident or abnormality is detected. You may save further files.

  When the security mode function is used, for example, a moving body sensor for detecting a moving body is provided in addition to the acceleration sensor 13, and an impact on the vehicle and the drive recorder 1 is detected to record video and audio. Video and audio may be recorded by detecting a person or the like that moves.

  Furthermore, for example, the display unit 16 may be configured by a touch panel display, and the operation unit 15 may be a touch panel of the display unit 16. An infrared light receiving unit may be provided for the drive recorder 1, and a remote controller capable of communicating by infrared rays may be provided. It may be used as 15.

DESCRIPTION OF SYMBOLS 1 Drive recorder 10 Control part 11 Camera 12 Microphone 13 Acceleration sensor 14 GPS module 15 Operation part 16 Display part 17 Audio | voice output part 18 Recording part 19 Input / output interface 20 Counter

Claims (7)

A shooting unit that shoots around the vehicle and outputs the obtained video data;
An acceleration sensor that detects acceleration of the vehicle and outputs acceleration information indicating the detected acceleration;
A position information acquisition unit that acquires position information indicating the position of the vehicle;
A recording unit for recording video data obtained by the photographing;
A display unit for displaying video data recorded in the recording unit;
An operation unit that is operated by the user and instructs various settings;
A control unit that executes a recording process for recording the video data output from the photographing unit in the recording unit, and performs a reproduction process for reproducing the video data recorded in the recording unit on the display unit. ,
When detecting an abnormality of the vehicle based on the acceleration information, a drive recorder that stores the video data at the time of detection and the immediately preceding video data so as not to be erased,
The control unit stops the recording process when an operation for stopping the recording process is performed, and starts the recording process when the operation for stopping the recording process ends. . The control unit has a counter for counting time,
When the operation for stopping the recording process is performed, counting by the counter is started, and when the value of the counter reaches a predetermined value set in advance, the recording process is started. The drive recorder according to claim 1. The operation of stopping the recording process is execution of the reproduction process,
The drive recorder according to claim 2, wherein the control unit starts counting by the counter when the reproduction process is completed. The operation to stop the recording process is a user operation on the operation unit,
3. The drive recorder according to claim 2, wherein the control unit starts counting by the counter when the operation unit is operated.   5. The drive recorder according to claim 4, wherein the control unit resets the count of the counter when the operation unit is operated before the value of the counter reaches the predetermined value.   The drive recorder according to claim 1, wherein the control unit starts the recording process when it is determined that the vehicle has moved based on the position information. The display unit includes an indicator for notifying the operation state to the outside,
The drive controller according to claim 1, wherein the control unit controls the display unit so as not to execute the notification of the operation state by the indicator.

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