WO2018138983A1 - Dispositif d'enregistrement, procédé d'enregistrement, et programme - Google Patents

Dispositif d'enregistrement, procédé d'enregistrement, et programme Download PDF

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Publication number
WO2018138983A1
WO2018138983A1 PCT/JP2017/037639 JP2017037639W WO2018138983A1 WO 2018138983 A1 WO2018138983 A1 WO 2018138983A1 JP 2017037639 W JP2017037639 W JP 2017037639W WO 2018138983 A1 WO2018138983 A1 WO 2018138983A1
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WIPO (PCT)
Prior art keywords
data
recording
event
control unit
unit
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Application number
PCT/JP2017/037639
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English (en)
Japanese (ja)
Inventor
聡隆 村田
啓太 林
山田　康夫
Original Assignee
株式会社Ｊｖｃケンウッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from JP2017012709A external-priority patent/JP2018120497A/ja
Priority claimed from JP2017040030A external-priority patent/JP2018148325A/ja
Application filed by 株式会社Ｊｖｃケンウッド filed Critical 株式会社Ｊｖｃケンウッド
Publication of WO2018138983A1 publication Critical patent/WO2018138983A1/fr

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles

Definitions

  • the present invention relates to a recording apparatus, a recording method, and a program.
  • the drive recorder is used as a recording device that captures a situation inside or outside the vehicle and records the photographed data. Data recorded in the drive recorder is used to investigate the cause of an accident when a traffic accident occurs.
  • the drive recorder for example, keeps recording the shooting data shot using a camera or the like while the engine is running. For this reason, when the data recorded in the memory becomes full, the drive recorder overwrites the existing shooting data and continues to record new shooting data.
  • Patent Document 1 discloses a configuration of a recording apparatus that prevents important photographing data at the moment when an event such as an accident occurs from being overwritten by photographing data at a normal time when no event has occurred.
  • the recording device disclosed in Patent Document 1 is such that, after an accident occurs, when the vehicle is in a stopped state, the recorded photographing data is overwritten by stopping the recording. To avoid.
  • Shooting data recorded by a recording device disclosed in Patent Document 1 or a general drive recorder is a case where images inside and outside the vehicle are continuously recorded and the engine of the vehicle is stopped. Even if there is, it keeps holding the shooting data.
  • a recording device or the like a general drive recorder
  • not only one driver uses the vehicle but a plurality of drivers or passengers may use the vehicle.
  • privacy-related images inside and outside the vehicle will be recorded on the recording device, etc., and vehicle users will be able to view and use privacy-related images when other users use them. turn into. Further, even when a vehicle user is alone, there are cases where an image related to privacy is used for public purposes.
  • the present embodiment provides a recording apparatus, a recording method, and a program that can hold shooting data for investigating the cause of an accident and protect the privacy of the shooting target.
  • the shooting data acquisition unit that acquires shooting data including at least video data, an event detection unit that detects occurrence of an event, and the shooting that is caused by an event detected by the event detection unit
  • first shooting data that does not take privacy measures for the video data is recorded in the recording unit, and the shooting data is recorded in the recording unit without causing an event.
  • a recording apparatus includes a recording control unit that records second shooting data obtained by taking privacy measures on the video data in the recording unit.
  • the second aspect of the present embodiment obtains shooting data including at least video data, detects an event occurrence, and records the shooting data in a recording unit due to the detected event.
  • shooting data including at least video data
  • detects an event occurrence and records the shooting data in a recording unit due to the detected event.
  • privacy measures are taken for the video data.
  • a recording method for recording the second image data on the recording unit is provided.
  • a third aspect of the present embodiment when capturing data including at least video data is detected, an event occurrence is detected, and the video data is recorded in a recording unit due to the detected event, the video data
  • the first shooting data that does not take privacy measures is recorded in the recording unit and the shooting data is recorded in the recording unit without causing an event
  • privacy measures are taken for the video data.
  • a program for causing a computer to record the second image data on the recording unit is provided.
  • the present embodiment it is possible to provide a recording apparatus, a recording method, and a program that can hold shooting data for investigating the cause of an accident and can protect the privacy of a shooting target.
  • FIG. 1 is a configuration diagram of a recording apparatus according to a first embodiment.
  • FIG. 3 is a diagram illustrating a relationship between data recorded in a recording unit according to the first embodiment and data recorded in a buffer memory.
  • FIG. 3 is a diagram illustrating a flow of recording processing of photographing data according to the first embodiment.
  • FIG. 3 is a configuration diagram of a recording apparatus according to a second embodiment.
  • FIG. 9 is a diagram illustrating a flow of recording processing of shooting data according to the second embodiment.
  • FIG. 6 is a configuration diagram of a recording apparatus according to a third embodiment.
  • FIG. 10 is a diagram illustrating a relationship between data output to a transmission control unit according to a third embodiment and data recorded in a buffer memory.
  • FIG. 10 is a diagram illustrating a flow of transmission processing of photographing data according to the third embodiment.
  • FIG. 9 is a diagram illustrating a flow of transmission processing of photographing data according to the fourth embodiment. It is a figure explaining the content of the event which the event detection part concerning Embodiment 4 detects.
  • FIG. 6 is a configuration diagram of a recording apparatus according to a fifth embodiment.
  • the recording apparatus 10 may be used as a drive recorder mounted on a vehicle, for example.
  • the recording device 10 may be a computer device that operates when a processor executes a program stored in a memory.
  • the processor may be, for example, a microprocessor, an MPU (Micro Processing Unit), or a CPU (Central Processing Unit).
  • the memory may be a volatile memory or a nonvolatile memory, and may be configured by a combination of a volatile memory and a nonvolatile memory.
  • the processor executes one or more programs including a group of instructions for causing a computer to execute an algorithm described with reference to the following drawings.
  • the recording apparatus 10 includes a control unit 20, a camera 31, a microphone 32, a recording unit 33, a sensor 34, a display unit 35, and a speaker 36.
  • the control unit 20, the camera 31, the microphone 32, the recording unit 33, the sensor 34, the display unit 35, and the speaker 36 may be directly connected using a predetermined cable or the like, and a CAN (Controller (Area) that is an in-vehicle network. Network).
  • the recording apparatus 10 may be configured to include components realized by the control unit 20. Specifically, the recording apparatus 10 includes a shooting data acquisition unit 21, an event detection unit 22, a recording control unit 23, and a detection unit 26.
  • the camera 31 generates video data taken inside or outside the vehicle.
  • the camera 31 may be one camera that captures only the front outside the vehicle, or may be two cameras that capture the front and rear outside the vehicle.
  • the camera 31 may be two cameras that take images outside and inside the vehicle.
  • the camera that captures the outside and inside of the vehicle may be an all-around camera that can capture 360 degrees around the vehicle.
  • the microphone 32 collects sound inside or outside the vehicle and generates sound data.
  • the recording unit 33 may be a hard disk, a card type memory, or the like, and records shooting data including at least video data.
  • the shooting data may include audio data.
  • the sensor 34 is, for example, an acceleration sensor, and may detect an impact or the like that occurs when the vehicle on which the recording apparatus 10 is mounted has an accident or is involved in the accident. Further, the sensor 34 may detect the speed of the vehicle and the like.
  • the display unit 35 may be a display that reproduces the video data recorded in the recording unit 33.
  • the speaker 36 reproduces audio data recorded in the recording unit 33.
  • the speaker 36 includes a sound amplifying unit and a sound processing unit (not shown) before the input of the speaker 36, and includes these even when described as the speaker 36.
  • the control unit 20 includes a shooting data acquisition unit 21, an event detection unit 22, a recording control unit 23, a buffer memory 24, a reproduction control unit 25, and a detection unit 26.
  • Each component constituting the control unit 20 such as the shooting data acquisition unit 21, the event detection unit 22, the recording control unit 23, the reproduction control unit 25, and the detection unit 26 executes a program stored in the memory by the processor. It may be software or a module that executes processing according to the above. Or each component which comprises the control part 20 may be hardware, such as a circuit or a chip
  • the imaging data acquisition unit 21 acquires video data generated by the camera 31 and audio data generated by the microphone 32.
  • Data including video data and audio data may be referred to as shooting data.
  • the shooting data acquisition unit 21 may be paraphrased as acquiring shooting data from the camera 31 and the microphone 32.
  • the shooting data may be data including at least video data. In other words, only the video data may be included in the shooting data.
  • the video data is, for example, H.264. H.264 or H.264 It may be generated using a method such as H.265.
  • the audio data may be generated using a PCM (Pulse Code Modulation) method or the like, and shooting data that is moving image data including video data and audio data is MPEG (Moving Picture Experts Group) 2-TS. (Transport Stream) or AVI (Audio (Video Interleave) may be used.
  • the shooting data acquisition unit 21 outputs shooting data including video data to the buffer memory 24.
  • the buffer memory 24 temporarily stores the output shooting data.
  • the buffer memory 24 may be referred to as a built-in memory built in the control unit 20. Temporarily storing may mean, for example, that the buffer memory 24 erases shooting data after a predetermined period. Alternatively, temporarily storing may mean storing the data output from the captured data acquisition unit 21 by overwriting the data in the buffer memory 24. Alternatively, temporarily storing means that when the buffer memory 24 outputs the shooting data output from the shooting data acquisition unit 21 to the recording control unit 23 or the detection unit 26, the output shooting data is deleted. May be.
  • the event detection unit 22 detects the occurrence of an event using information output from the sensor 34. For example, when the impact level detected by the sensor 34 operating as an acceleration sensor exceeds a predetermined value, the event detection unit 22 detects that an event of a traffic accident has occurred. The impact level exceeding a predetermined value may be rephrased as the acceleration exceeding the predetermined value. When the event detection unit 22 detects the occurrence of an event, the event detection unit 22 outputs information indicating that the event has occurred to the recording control unit 23.
  • the information indicating that an event has occurred includes the time at which the event occurred. Furthermore, the information indicating that an event has occurred may include the content of the event that has occurred.
  • the detecting unit 26 detects a video related to privacy from the shooting data stored in the buffer memory 24.
  • the video related to privacy may be a video on which a human face or a vehicle license plate is displayed.
  • the detection unit 26 includes at least one of a face detection unit that detects a human face and a license plate detection unit that detects a license plate of a vehicle.
  • the recording control unit 23 records the shooting data stored in the buffer memory 24 in the recording unit 33 as a file format.
  • the recording control unit 23 acquires the shooting acquired from the buffer memory 24 without taking privacy measures. Data is recorded in the recording unit 33. In other words, the recording control unit 23 transfers the shooting data from the buffer memory 24 to the recording unit 33.
  • the recording control unit 23 records the shooting data acquired from the buffer memory 24 as it is. To record.
  • the recording control unit 23 generates a moving image file including video data and audio data from the shooting data stored in the buffer memory 24 and records the moving image file in the recording unit 33.
  • the recording control unit 23 generates a moving image file including only video data and records the moving image file in the recording unit 33.
  • the recording control unit 23 When recording the shooting data stored in the buffer memory 24 without being attributed to the event detected by the event detection unit 22 to the recording unit 33, the recording control unit 23 is privacy with respect to the shooting data acquired from the buffer memory 24. Measured data is recorded in the recording unit 33 for privacy measures. Specifically, the detection unit 26 outputs information related to the detection result of the video related to privacy to the recording control unit 23. The recording control unit 23 performs privacy countermeasures on the video data related to privacy detected by the detection unit 26 in the shooting data stored in the buffer memory 24. For example, when the detection unit 26 detects a human face, the privacy measure may be to process the video data so that the detected face becomes unclear. Processing video data may be paraphrased as correcting video data. Alternatively, the privacy measure may be to process the video data so that the detected license plate is unclear when the detection unit 26 detects the license plate.
  • the privacy measure performed in the recording control unit 23 may be mainly processing the video data so that the license plate is unclear.
  • the detection unit 26 detects only the license plate of the vehicle without detecting a human face.
  • the privacy measure performed in the recording control unit 23 is to process the video data so that the human face and the license plate are unclear. Also good.
  • the privacy measure performed in the recording control unit 23 is to process the video data so that the human face and the license plate are unclear. Also good. Specifically, the recording control unit 23 processes the video data so that the license plate is unclear for the shooting data shot outside the vehicle, and for the shooting data shot inside the vehicle, The video data may be processed so that the human face is unclear. Alternatively, when the camera 31 is a camera that captures the outside of the vehicle and the inside of the vehicle, the recording control unit 23 displays an image so that the human face and the license plate are unclear with respect to the shooting data that is captured outside the vehicle. Data may be processed.
  • the recording control unit 23 may process the video data so that the human face is unclear as a privacy measure when the size of the human face recognized in the video data is greater than or equal to a predetermined value.
  • determining the privacy countermeasure target according to the size of the person's face for example, the face of a person away from the vehicle by a predetermined distance or more can be excluded from the privacy countermeasure target.
  • the face of a person photographed at a position away from the camera becomes smaller. Therefore, a face that is so small that a human face cannot be identified can be excluded from the privacy measures.
  • a person whose face size is smaller than a predetermined value may not be a passenger inside the vehicle but a passer-by outside the vehicle that can be seen from the window of the vehicle.
  • the predetermined value of the size of the person's face is determined according to the range where privacy measures are implemented.
  • the range in which the privacy measure is implemented may be determined as a range within a few meters from the vehicle, for example.
  • the recording control unit 23 may determine whether or not to take privacy measures according to the number of license plate numbers recognized in the video data. For example, when the number of the license plate is 4 digits and the number recognized in the video data is 3 digits or more, the video data may be processed so that the license plate is unclear. The recording control unit 23 determines whether or not to take privacy countermeasures by using other information shown in the license plate in addition to determining whether or not to take privacy countermeasures according to the number of license plates. May be.
  • the processing load of the recording control unit 23 during a period in which no event occurs is limited by limiting the privacy countermeasure target according to the size of the face of the person recognized in the video data or the number of license plate numbers. It can be reduced.
  • the recording control unit 23 When recording the shooting data in the recording unit 33, the recording control unit 23 records the shooting data resulting from the event, that is, shooting data including shooting data for which privacy measures are not taken, in the recording unit 33 as overwriting-prohibited data. May be.
  • the recording control unit 23 may specify the address of the memory area in the recording unit 33 that prohibits overwriting of data, and record the photographing data in the recording unit 33.
  • the recording control unit 23 may set flag information indicating prohibition of overwriting in the header or payload of the photographic data.
  • the recording control unit 23 when the recording control unit 23 records shooting data that does not result from an event, that is, shooting data including shooting data for which privacy measures have been taken, to the recording unit 33, the shooting data is recorded in the recording unit 33 as data that can be overwritten. May be.
  • the recording control unit 23 may record the shooting data in the recording unit 33 by designating an address of a memory area in which data in the recording unit 33 can be overwritten.
  • the recording control unit 23 may set flag information indicating that overwriting is possible in the header or payload of the imaging data.
  • the recording unit 33 records the data output from the recording control unit 23, in other words, the data transferred from the buffer memory 24 via the recording control unit 23.
  • the playback control unit 25 acquires the shooting data recorded in the recording unit 33, outputs video data based on the acquired shooting data to the display unit 35, and outputs audio data based on the acquired shooting data to the speaker 36 and the like. To do.
  • the recording device 10 includes a reproduction control unit 25, a display unit 35, and a speaker 36.
  • a reproduction device or the like different from the recording device 10 includes a reproduction control unit 25 and a display unit 35.
  • a speaker 36 may be included.
  • the recording apparatus 10 may not include the reproduction control unit 25, the display unit 35, and the speaker 36.
  • a playback device including the playback control unit 25, the display unit 35, and the speaker 36 may play back the data recorded in the recording unit 33 of the recording device 10.
  • the playback device or the like may be a device that plays back data recorded on a portable recording medium such as an optical disk or a card-type recording medium. Data recorded in the recording unit 33 may be transferred to a portable recording medium.
  • each of D-4 to D + 2 represents shooting data shot during a predetermined period.
  • D-4 is the oldest photographed data
  • D + 2 is the latest photographed data.
  • the predetermined period may be several seconds, several tens of seconds, several minutes, or the like.
  • FIG. 2 shows that the shooting data acquired by the shooting data acquisition unit 21 is stored in the buffer memory 24 as it is.
  • FIG. 2 shows that the timing at which the imaging data acquisition unit 21 acquires the imaging data and the timing at which the imaging data is stored in the buffer memory 24 substantially match.
  • the term “substantially match” includes the case where the timing at which the shooting data acquisition unit 21 acquires the shooting data does not completely match the timing at which the shooting data is stored in the buffer memory 24.
  • the term “substantially match” includes that the timing at which shooting data is stored in the buffer memory 24 is shifted later than the timing at which the shooting data acquisition unit 21 acquires shooting data.
  • the photographing data recorded in the recording unit 33 is temporarily stored in the buffer memory 24 and then recorded in the recording unit 33 by the recording control unit 23. Therefore, the timing at which the shooting data acquired by the shooting data acquisition unit 21 is stored in the buffer memory 24 is different from the timing at which it is recorded in the recording unit 33. Specifically, the timing at which shooting data is recorded in the recording unit 33 is later than the timing at which shooting data is stored in the buffer memory 24.
  • T1 to t6 indicate time.
  • the recording control unit 23 determines whether an event has occurred in the past predetermined period from time t1 to t6. For example, the recording control unit 23 determines whether an event has occurred between time t1 and time t2 at time t2. The recording control unit 23 determines whether or not an event has occurred at other times as well. In FIG. 2, the recording control unit 23 determines that no event has occurred at times t1 to t3 and time t5. In addition, at time t4, the recording control unit 23 determines that an event has occurred at time t6, which is between time t3 and time t4.
  • the recording control unit 23 determines at time t2 that no event has occurred between time t1 and time t2, the video included in the shooting data D-2 stored in the buffer memory 24 Take privacy measures on data.
  • the recording control unit 23 records shooting data including video data including video data in which at least one of a human face and a license plate of a vehicle is obscured into a recording unit 33.
  • the recording control unit 23 determines that an event has occurred at time t6 between time t3 and time t4 at time t4. In this case, the recording control unit 23 converts the data D stored in the buffer memory 24 into a file as it is without taking a privacy measure for the data D acquired by the photographic data acquisition unit 21 at time t6. Record to 33.
  • FIG. 2 shows that shooting data that has been stored in the buffer memory 24 is immediately recorded in the recording unit 33
  • the shooting data stored in the buffer memory 24 is stored in the recording unit 33.
  • the recording timing is not limited to FIG.
  • the recording control unit 23 may acquire the shooting data being stored in the buffer memory 24 and record the acquired shooting data in the recording unit 33.
  • the recording control unit 23 may record the shooting data in the recording unit 33 after a predetermined period has elapsed from the time when the storage of the shooting data is completed when the shooting data is stored in the buffer memory 24.
  • the photographing data is intended to be any one of D-4 to D + 2 shown in FIG.
  • the recording control unit 23 records, in the recording unit 33, only the shooting data acquired by the shooting data acquisition unit 21 during the period including the time when the event occurs without performing privacy measures. Is shown.
  • the recording control unit 23 is not limited to this.
  • the shooting data acquired by the shooting data acquisition unit 21 may be recorded in the recording unit 33 without taking privacy measures.
  • the recording control unit 23 may record the data D-1 in the recording unit 33 without taking privacy measures in addition to the data D acquired by the imaging data acquisition unit 21 at time t6. .
  • the recording control unit 23 determines that an event has not occurred, in addition to the shooting data acquired in the latest period stored in the buffer memory 24, the period before the latest period Also, the captured data acquired in the above may be recorded in the recording unit 33 by taking a privacy measure.
  • the period for recording data D-4 to D-1 and the period for recording data D + 1 in the recording unit 33 are the privacy measure implementation period, and the period for recording the data D in the recording unit 33 is privacy. The measure is not implemented.
  • the shooting data acquisition unit 21 outputs shooting data including at least video data to the buffer memory 24, and the buffer memory 24 starts storing shooting data (S11).
  • the recording control unit 23 determines whether or not an event has occurred when starting to record the shooting data stored in the buffer memory 24 in the recording unit 33 (S12). Specifically, the recording control unit 23 determines whether an event has occurred during the shooting period of the shooting data to be transferred. For example, the recording control unit 23 determines whether the event detection unit 22 detects the occurrence of an event during the shooting period of the shooting data to be transferred.
  • the recording control unit 23 When it is determined that the event has occurred, the recording control unit 23 records the shooting data including the timing at which the event has occurred during the shooting period in the recording unit 33 without taking privacy measures (S13). The recording control unit 23 converts the shooting data stored in the buffer memory 24 into a file without taking a privacy measure, and records the shooting data in the recording unit 33.
  • the recording control unit 23 determines that an event has not occurred, the recording control unit 23 performs privacy countermeasures on the captured data captured during a period in which no event has occurred.
  • the recording control unit 23 records photographing data including video data in which at least one of the human face and the vehicle license plate is unclear in the recording unit 33 (S14).
  • the recording control unit 23 performs privacy countermeasures on the shooting data stored in the buffer memory 24, creates a file of the shooting data on which privacy measures have been taken, and records the shooting data in the recording unit 33.
  • the recording control unit 23 records the shooting data stored in the buffer memory 24 in step S13 or S14 in the recording unit 33, and then there is shooting data not recorded in the recording unit 33 in the buffer memory 24. It is determined whether or not (S15).
  • the recording control unit 23 determines that there is no shooting data not recorded in the recording unit 33 in the buffer memory 24, the recording control unit 23 ends the processing.
  • the case where there is no shooting data that is not recorded in the recording unit 33 in the buffer memory 24 is, for example, when the driver performs an operation to stop shooting, or when the shooting is stopped because the engine is stopped. There is.
  • the recording control unit 23 determines that there is shooting data that is not recorded in the recording unit 33 in the buffer memory 24, the recording control unit 23 repeatedly executes the processing from step S12.
  • the recording apparatus 10 can record video data for which privacy measures are not taken in the recording unit 33 with respect to shooting data including the timing at which an event occurs in the shooting period. it can. Further, the recording device 10 records video data in which at least one of the human face and the vehicle license plate is obscured with respect to the captured data captured during a period in which no event occurs. It can be recorded in the section 33. As a result, the recording device 10 is able to determine the shooting data when an event such as a traffic accident occurs, even if the human face or the license plate of the vehicle is reflected, and the raw shooting data that can be identified. Can be used to investigate the cause of the accident. On the other hand, the recording device 10 protects the privacy of the subject to be photographed inside and outside the vehicle by making at least one of the human face and the license plate of the vehicle unclear about the shooting data during a period in which no event occurs. Can do.
  • the recording device 40 includes a control unit 41 instead of the control unit 20 in the recording device 10 of FIG.
  • the control unit 41 has a configuration in which a volume level acquisition unit 42 is added to the control unit 20 of FIG.
  • symbol is attached
  • the recording device 40 will be mainly described with respect to a configuration different from that of the recording device 10.
  • the recording apparatus 40 may include a component realized by the control unit 41.
  • the recording device 40 includes an imaging data acquisition unit 21, an event detection unit 22, a recording control unit 23, a detection unit 26, and a volume level acquisition unit 42.
  • the volume level acquisition unit 42 acquires information about the volume level from the audio data generated by the microphone 32.
  • the volume level acquisition unit 42 may acquire information related to the volume level from the audio data acquired by the imaging data acquisition unit 21.
  • the volume level may be information indicating the volume of audio, for example.
  • the volume level acquisition unit 42 outputs information related to the volume level to the recording control unit 23. Specifically, the information regarding the sound volume level may include identification information of the audio data.
  • volume level acquisition unit 42 is disposed between the microphone 32 and the recording control unit 23.
  • the volume level acquisition unit 42 includes the shooting data acquisition unit 21 and the recording control unit 23. Between the two.
  • the recording control unit 23 takes privacy measures according to the volume level related to the audio data. Decide whether to do it. For example, a threshold value 1 of the sound volume level is provided between the sound volume of the normal conversation level and the loud voice exceeding the normal conversation level. That is, the threshold value 1 is used to distinguish between a normal conversation level and a volume level higher than that.
  • the loud voice exceeding the normal conversation level may be, for example, a human screaming or yelling voice.
  • the recording control unit 23 When the volume level is less than the threshold value 1, the recording control unit 23 records video data on which privacy measures have been taken in the recording unit 33. Further, the recording control unit 23 records the captured data without taking privacy measures even when the sound level exceeds the threshold 1 and the event detection unit 22 does not detect the occurrence of an event. Record to 33.
  • the recording control unit 23 determines whether or not to take a privacy measure using the threshold value 1, the privacy of the shooting target can be protected. Furthermore, no event is detected by the sensor 34, but no privacy measures are taken when it is assumed that some abnormality has occurred in the vehicle due to the detection of a loud voice exceeding the normal conversation level. Data can be recorded in the recording unit 33.
  • Steps S21 to S25 are the same as steps S11 to S15 in FIG.
  • the recording control unit 23 determines whether or not the volume level of the audio data included in the captured data is less than a predetermined value, for example, a threshold value 1 (S26). ). When the recording control unit 23 determines that the volume level exceeds the threshold value 1, the recording control unit 23 records the shooting data in the recording unit 33 without taking a privacy measure for the shooting data stored in the buffer memory 24 ( S23). When the recording control unit 23 determines that the volume level is less than the threshold value 1, the recording control unit 23 performs privacy measures on the shooting data stored in the buffer memory 24, and the shooting data on which privacy measures have been taken is sent to the recording unit 33. Record (S24).
  • a predetermined value for example, a threshold value 1
  • the recording device 40 As described above, by using the recording device 40 according to the second embodiment, it is possible to determine whether or not to take a privacy measure for the photographic data according to the volume level. As a result, even if the event detection unit 22 cannot detect the event, the recording device 40 presumes that an abnormality has occurred in the vehicle and does not take privacy measures. Can be recorded.
  • the recording apparatus 50 includes a control unit 51 instead of the control unit 20 in the recording apparatus 10 of FIG. Furthermore, the recording apparatus 50 has a configuration in which a communication unit 37 is added to the recording apparatus of FIG. Further, the control unit 51 has a configuration in which a transmission control unit 28 and a reception control unit 29 are added to the control unit 20 of FIG.
  • the communication unit 37 includes a transmission unit 38 and a reception unit 39.
  • symbol is attached
  • the recording apparatus 50 will be mainly described with respect to a configuration different from that of the recording apparatus 10.
  • the recording apparatus 50 may include a component realized by the control unit 51.
  • the recording device 50 includes an imaging data acquisition unit 21, an event detection unit 22, a recording control unit 23, a detection unit 26, a transmission control unit 28, and a reception control unit 29.
  • the recording device 50 communicates with the external recording device 5 via a network. Specifically, the recording device 50 transmits image data captured using the camera 31 and the microphone 32 to the external recording device 5. In other words, the recording device 50 records the photographic data in the external recording device 5.
  • the external recording device 5 may be a server device such as a cloud server, or may be a server device managed by a company or an individual. Alternatively, the external recording device 5 may be a computer device such as a personal computer. The external recording device 5 records photographing data received via a network.
  • the display unit 35 may be a display that reproduces video data recorded in the external recording device 5.
  • the speaker 36 reproduces audio data recorded in the external recording device 5.
  • the communication unit 37 transmits or receives data to / from the external recording device 5. Specifically, the transmission unit 38 transmits data to the external recording device 5, and the reception unit 39 receives data transmitted from the external recording device 5.
  • the communication unit 37 may be connected to a network by using, for example, a wireless LAN (Local Area Network) communication method. Alternatively, the communication unit 37 may be connected to a network using a wireless communication standard such as LTE (Long Term Evolution).
  • LTE Long Term Evolution
  • the transmission unit 38 performs modulation processing or the like on the photographing data output from the control unit 51, and transmits the wireless data generated as a result to the external recording device 5.
  • the reception unit 39 demodulates the wireless data transmitted from the external recording device 5 and outputs the shooting data generated as a result to the control unit 51.
  • the modulation process for the photographing data and the demodulation process for the radio data may be performed in the transmission control unit 28 and the reception control unit 29 in the control unit 51.
  • the recording control unit 23 outputs the shooting data stored in the buffer memory 24 to the transmission control unit 28 as a file format.
  • the transmission control unit 28 transmits the photographing data to the external recording device 5 via the transmission unit 38.
  • the recording control unit 23 acquires the captured data stored in the buffer memory 24 due to the event detected by the event detection unit 22 to the transmission control unit 28 from the buffer memory 24 without taking privacy measures.
  • Shooting data is output to the transmission control unit 28.
  • the recording control unit 23 transfers the captured data acquired from the buffer memory 24 to the external recording device 5 via the transmission control unit 28 and the transmission unit 38.
  • the recording control unit 23 records the shooting data acquired from the buffer memory 24 in the external recording device 5.
  • the recording control unit 23 When the recording control unit 23 outputs the shooting data stored in the buffer memory 24 due to the event detected by the event detection unit 22 to the transmission control unit 28, the recording control unit 23 performs transmission control on the shooting data acquired from the buffer memory 24 as it is. To the unit 28. Specifically, the recording control unit 23 generates a moving image file including video data and audio data from the shooting data stored in the buffer memory 24 and outputs the moving image file to the transmission control unit 28. When the audio data is not included in the shooting data stored in the buffer memory 24, the recording control unit 23 generates a moving image file including only video data and outputs the moving image file to the transmission control unit 28.
  • the recording control unit 23 When the recording control unit 23 outputs the shooting data stored in the buffer memory 24 without being attributed to the event detected by the event detection unit 22 to the transmission control unit 28, the recording control unit 23 performs processing on the shooting data acquired from the buffer memory 24.
  • the privacy measures are taken, and the photographing data for which the privacy measures are taken is output to the transmission control unit.
  • the detection unit 26 outputs information related to the detection result of the video related to privacy to the recording control unit 23.
  • the recording control unit 23 performs privacy countermeasures on the video data related to privacy detected by the detection unit 26 in the shooting data stored in the buffer memory 24.
  • the privacy measure may be to process the video data so that the detected face becomes unclear. Processing video data may be paraphrased as correcting video data.
  • the privacy measure may be to process the video data so that the detected license plate is unclear when the detection unit 26 detects the license plate.
  • the recording control unit 23 When outputting the shooting data to the transmission control unit 28, the recording control unit 23 sets the shooting data caused by the event, that is, shooting data including shooting data for which privacy measures are not taken, to the transmission control unit 28 as overwriting prohibition data. It may be output.
  • the recording control unit 23 may specify the address of the memory area in the external recording device 5 that prohibits overwriting of data, and output the photographing data to the transmission control unit 28.
  • the recording control unit 23 may set flag information indicating prohibition of overwriting in the header or payload of the photographic data.
  • the transmission control unit 28 sets the shooting data as data that can be overwritten. May be output.
  • the recording control unit 23 may specify an address of a memory area where data of the external recording device 5 can be overwritten, and output the photographing data to the transmission control unit 28.
  • the recording control unit 23 may set flag information indicating that overwriting is possible in the header or payload of the imaging data.
  • the reproduction control unit 25 acquires shooting data recorded in the external recording device 5, outputs video data based on the acquired shooting data to the display unit 35, and outputs audio data based on the acquired shooting data to the speaker 36 and the like. Output.
  • the reception control unit 29 outputs the shooting data output from the reception unit 39 to the reproduction control unit 25. That is, the reproduction control unit 25 receives the shooting data transmitted from the external recording device 5 via the reception unit 39 and the reception control unit 29.
  • the recording device 50 includes a reproduction control unit 25, a reception control unit 29, a display unit 35, and a speaker 36.
  • a reproduction device or the like different from the recording device 50 is used as the reproduction control unit.
  • 25, a reception control unit 29, a display unit 35, and a speaker 36 may be included.
  • the recording device 50 may not include the reproduction control unit 25, the reception control unit 29, the display unit 35, and the speaker 36.
  • the playback device including the playback control unit 25, the reception control unit 29, the display unit 35, and the speaker 36 may play back the data recorded in the external recording device 5.
  • the playback device or the like may be a device that plays back data recorded on a portable recording medium such as an optical disk or a card-type recording medium. Data recorded in the external recording device 5 may be transferred to a portable recording medium.
  • FIG. 7 shows the relationship between the data output to the transmission control unit 28 and the data recorded in the buffer memory 24.
  • FIG. 7 shows that the recording control unit 23 does not record the shooting data in the recording unit 33, but the recording control unit 23 outputs the shooting data to the transmission control unit 28. Since FIG. 7 shows the same contents as FIG. 2 except that the recording control unit 23 outputs the photographing data to the transmission control unit 28, detailed description thereof is omitted.
  • the shooting data acquisition unit 21 outputs shooting data including at least video data to the buffer memory 24, and the buffer memory 24 starts storing shooting data (S31).
  • the recording control unit 23 determines whether or not an event has occurred when starting to output the photographing data stored in the buffer memory 24 to the transmission control unit 28 (S32). Specifically, the recording control unit 23 determines whether an event has occurred during the shooting period of the shooting data to be transferred. For example, the recording control unit 23 determines whether the event detection unit 22 detects the occurrence of an event during the shooting period of the shooting data output to the transmission control unit 28.
  • the recording control unit 23 When it is determined that the event has occurred, the recording control unit 23 outputs the shooting data including the timing at which the event has occurred during the shooting period to the transmission control unit 28 without taking privacy measures (S33).
  • the recording control unit 23 converts the shooting data stored in the buffer memory 24 into a file without taking a privacy measure, and outputs the shooting data to the transmission control unit 28.
  • the transmission control unit 28 transmits the output shooting data to the external recording device 5 via the transmission unit 38.
  • the recording control unit 23 determines that an event has not occurred, the recording control unit 23 performs privacy countermeasures on the captured data captured during a period in which no event has occurred.
  • the recording control unit 23 outputs to the transmission control unit 28 photographing data including video data in which at least one of the human face and the vehicle license plate is unclear (S34).
  • the recording control unit 23 performs privacy countermeasures on the shooting data stored in the buffer memory 24, files the shooting data on which privacy measures have been taken, and outputs the shooting data to the transmission control unit 28.
  • the transmission control unit 28 transmits the output shooting data to the external recording device 5 via the transmission unit 38.
  • the recording control unit 23 determines whether or not the output of the photographic data in a predetermined period has ended after outputting the photographic data stored in the buffer memory 24 to the transmission control unit 28 in step S33 or S34. (S35).
  • the predetermined period may be an imaging period of each of the imaging data D ⁇ 4 to D + 2 described in FIG.
  • the recording control unit 23 determines whether or not the shooting data D-2 that has not been output to the transmission control unit 28 remains in the buffer memory 24. It may be determined whether or not. If the recording control unit 23 determines that the shooting data D-2 that has not been output to the transmission control unit 28 does not remain in the buffer memory 24, the recording control unit 23 determines that the output of the shooting data in a predetermined period has ended. May be. When the recording control unit 23 determines that the shooting data D-2 that has not been output to the transmission control unit 28 remains in the buffer memory 24, the recording control unit 23 continues to output the shooting data D-2.
  • the recording control unit 23 determines whether or not the output of all the shooting data stored in the buffer memory 24 is completed (S36). If the recording control unit 23 determines that the output of all the shooting data stored in the buffer memory 24 has ended, the process ends.
  • the case where there is no shooting data that is not output to the transmission control unit 28 in the buffer memory 24 is, for example, when the driver performs an operation to stop shooting, or when the shooting is stopped because the engine is stopped. Etc.
  • the recording control unit 23 determines that the output of all the shooting data stored in the buffer memory 24 has not been completed, the recording control unit 23 repeatedly executes the processes after step S31.
  • the recording apparatus 50 transmits video data for which privacy measures are not taken to the external recording apparatus 5 with respect to shooting data that includes the timing at which an event occurs in the shooting period. Can do.
  • the recording device 50 externally captures video data in which at least one of the human face and the vehicle license plate is obscured with respect to captured data captured during a period in which no event occurs. It can be transmitted to the recording device 5.
  • the video data transmitted to the external recording device 5 is stored in the external recording device.
  • the recording device 50 is able to determine the shooting data when an event such as a traffic accident occurs, even if a human face or a license plate of a vehicle is reflected, and the raw shooting data that can be identified.
  • the recording device 50 protects the privacy of the photographing target inside and outside the vehicle by making at least one of the human face and the vehicle license plate unclear regarding the shooting data during a period in which no event occurs. Can do.
  • the shooting data is recorded in the external recording device 5, even if the vehicle or the drive recorder is damaged due to an accident or the like, it is possible to prevent the shooting data from being lost.
  • step S41 is the same as step S31 in FIG. 8, detailed description thereof is omitted.
  • the recording control unit 23 determines whether or not an event has occurred when starting to output the photographing data stored in the buffer memory 24 to the transmission control unit 28 (S42).
  • the sensing column in FIG. 10 describes information acquired by the event detection unit 22 or a device that detects the information.
  • the acceleration sensor detects acceleration information or impact information of the vehicle and outputs it to the event detection unit 22.
  • the user operation refers to accepting an operation for manually starting recording due to an event regardless of a sensor or the like when the user operates the recording device 50.
  • the speed information is, for example, vehicle speed information acquired via CAN.
  • the volume is information indicating the sound level of the vehicle user, for example.
  • the event detection unit 22 determines that the vehicle has collided with a person or an object when the acceleration detected by the acceleration sensor is greater than or equal to the threshold value 1 and further greater than or equal to the threshold value 2 indicating a collision.
  • the threshold value 2 is larger than the threshold value 1.
  • the event detection unit 22 may determine that the vehicle has collided with a person or an object when the waveform shape of acceleration is a waveform shape indicating a collision.
  • the event detection unit 22 determines that the vehicle has accelerated or decelerated suddenly.
  • the event detection unit 22 may determine that the vehicle has suddenly accelerated or decelerated when the waveform shape of acceleration is not a waveform shape indicating a collision. Further, the event detection unit 22 detects that the operation unit of the recording device 50 is operated and an instruction to start recording due to the event is given. Further, the event detection unit 22 determines that the driver has suddenly turned off the steering wheel when the rotational speed of the steering wheel exceeds a predetermined value or the rotational amount of the steering wheel exceeds a predetermined value. In addition, the event detection unit 22 determines that the vehicle is in an overspeed state when the speed of the vehicle exceeds a predetermined value. Moreover, the event detection part 22 determines with the human trouble having generate
  • the level related to each event is described. For example, the event levels of events such as collisions and human troubles are set to high, and the event levels of other events are set to low.
  • the recording control unit 23 determines the type of shooting data to be transmitted to the external recording device 5 based on the event level.
  • the recording control unit 23 transmits video data and audio data when the event level is set to high.
  • the recording control unit 23 transmits only video data when the event level is set to low.
  • the recording control part 23 may also transmit acceleration information together, when the event detection part 22 determines an event using the information detected in the acceleration sensor.
  • the recording control unit 23 may also transmit the speed information.
  • the recording control unit 23 determines whether or not the event level is high (S43). When detecting an event, the event detection unit 22 notifies the recording control unit 23 of the content and event level of the event described in the event column of FIG. If the recording control unit 23 determines that the event level is high, the recording control unit 23 outputs to the transmission control unit 28 shooting data including a timing at which an event having a high event level is set during the shooting period (S44). The shooting data output in step S44 is shooting data for which privacy measures are not taken.
  • the recording control unit 23 determines that the event has not been notified from the event detection unit 22 in step S42 and it is determined that no event has occurred. In step S43, the event level of the event that has occurred is not high. When it determines, the process prescribed
  • Steps S46 and S47 are the same as steps S35 and S36 in FIG.
  • the recording apparatus 50 transmits the shooting data with the privacy measures taken to the external recording device 5 according to the event level of the event that has occurred, or the shooting without taking the privacy measures. It is possible to determine whether to transmit data to the external recording device 5. For both high and low event levels, flag information indicating overwriting prohibition is set as shooting data resulting from the event. Further, data recorded in the external recording device 5 is recorded so that photographic data not attributed to an event can be overwritten with a privacy measure, and photographic data attributed to an event is a privacy measure when the event level is high. If the event level is low, privacy measures are taken and recorded.
  • the video data recording the occurrence of the accident or trouble is the person's face for investigating the cause of the accident or trouble. Since the video data that records the vehicle operation status etc. is recorded as data that can be referred to, such as vehicle license plates, etc., since privacy measures are taken and recorded, even in the shooting data recorded due to the event The privacy of the photographed person or vehicle can be protected.
  • the recording device 60 includes a control unit 61 instead of the control unit 51 in the recording device 50 of FIG.
  • the control unit 61 has a configuration in which a volume level acquisition unit 42 is added to the control unit 51 of FIG.
  • symbol is attached
  • the recording apparatus 60 will be mainly described with respect to a configuration different from the recording apparatus 50.
  • the recording device 60 may include a component realized by the control unit 61.
  • the recording device 60 includes an imaging data acquisition unit 21, an event detection unit 22, a recording control unit 23, a detection unit 26, a transmission control unit 28, and a volume level acquisition unit 42.
  • the volume level acquisition unit 42 acquires information about the volume level from the audio data generated by the microphone 32.
  • the volume level acquisition unit 42 may acquire information related to the volume level from the audio data acquired by the imaging data acquisition unit 21.
  • the volume level may be information indicating the volume of audio, for example.
  • the volume level acquisition unit 42 outputs information related to the volume level to the event detection unit 22. Specifically, the information regarding the sound volume level may include identification information of the audio data.
  • the volume level acquisition unit 42 is disposed between the microphone 32 and the event detection unit 22, but the volume level acquisition unit 42 includes the shooting data acquisition unit 21 and the event detection unit 22. Between the two.
  • the recording control unit 23 determines whether or not to take privacy measures according to the volume level related to the audio data. For example, a threshold value 1 of the sound volume level is provided between the sound volume of the normal conversation level and the loud voice exceeding the normal conversation level. That is, the threshold value 1 is used to distinguish between a normal conversation level and a volume level higher than that.
  • the loud voice exceeding the normal conversation level may be, for example, a human screaming or yelling voice.
  • the volume level exceeding the threshold value 1 indicates that the human trouble shown in FIG. 10 has occurred. That is, when the volume level exceeds the threshold value 1, it is detected in the event detection unit 22 that a human trouble has occurred as an event, and the event level is set to high.
  • the recording control unit 23 transmits video data on which privacy measures have been taken to the external recording device 5. That is, when the volume level is less than the threshold value 1, no event is detected.
  • the privacy of the subject to be photographed can be protected by determining whether or not the recording control unit 23 takes a privacy measure based on the threshold value 1.
  • the photographing data transmission process according to the fifth embodiment is a process mainly according to the volume level. In the following, contents related to the processing using the volume level in FIG. 9 will be described.
  • step S42 the recording control unit 23 determines whether or not an event related to human trouble is notified from the event detection unit 22. Specifically, the event detection unit 22 determines whether or not a volume level exceeding the threshold 1 has been acquired from the volume level acquisition unit 42. When the volume level acquired by the volume level acquisition unit 42 exceeds the threshold value 1, the event detection unit 22 notifies the recording control unit 23 that an event related to human trouble has occurred. When the volume level acquired by the volume level acquisition unit 42 is less than the threshold value 1, the event detection unit 22 determines that an event related to human trouble has not occurred.
  • step S43 the recording control unit 23 determines whether or not the event level of the event notified from the event detection unit 22 is high. As shown in FIG. 10, the event level of an event related to human trouble is set high. Therefore, the recording control unit 23 determines that the event level is high when notified in step S42 that a human trouble has occurred. Further, when the event detection unit 22 has a plurality of threshold values related to the volume level, the event level related to the human trouble may be set to be high or low according to the volume level. In such a case, the recording control unit 23 may determine that a human trouble has occurred as an event in step S42, and may determine that the event level is not high in step S43.
  • step S42 and step S43 Since the processes other than step S42 and step S43 are the same as those already described, detailed description thereof will be omitted.
  • the recording device 60 it is possible to determine whether or not to take a privacy measure for the photographic data according to the volume level.
  • the recording device 40 can record the photographic data for which privacy measures are not taken in the external recording device 5 when the volume level corresponds to a human trouble.
  • Non-transitory computer readable media include various types of tangible storage media (tangible storage medium).
  • Examples of non-transitory computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable ROM), flash ROM, RAM (Random Access Memory)) are included.
  • the program may also be supplied to the computer by various types of temporary computer-readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves.
  • the temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
  • the present application is applicable to a recording apparatus that records photographing data.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Television Signal Processing For Recording (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

L'objet de la présente invention est de réaliser un dispositif d'enregistrement grâce auquel il est possible de conserver des données photographiques servant à rechercher la cause d'un accident et aussi de protéger la vie privée d'un sujet photographié. Un dispositif d'enregistrement (10) selon le présent mode de réalisation comprend : un dispositif d'acquisition (21) de données photographiques qui acquiert des données photographiques incluant au moins des données vidéo ; une unité de détection (22) d'événement qui détecte la survenue d'un événement ; et une unité de contrôle (23) d'enregistrement qui, lors de l'enregistrement des données photographiques dans une unité d'enregistrement (33) tel qu'il est déclenché par l'événement que l'unité de détection (22) d'événement a détecté, enregistre dans l'unité d'enregistrement (33) des premières données photographiques dans lesquelles des mesures de confidentialité ne sont pas mises en œuvre en ce qui concerne les données vidéo, et qui, lors de l'enregistrement des données photographiques dans l'unité d'enregistrement (33) sans déclenchement par l'événement, enregistre dans l'unité d'enregistrement (33) des deuxièmes données photographiques dans lesquelles des mesures de confidentialité ont été mises en œuvre en ce qui concerne les données vidéo.
PCT/JP2017/037639 2017-01-27 2017-10-18 Dispositif d'enregistrement, procédé d'enregistrement, et programme WO2018138983A1 (fr)

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JP2017012709A JP2018120497A (ja) 2017-01-27 2017-01-27 記録装置、記録方法、及びプログラム
JP2017-012709 2017-01-27
JP2017-040030 2017-03-03
JP2017040030A JP2018148325A (ja) 2017-03-03 2017-03-03 記録装置、送信方法、及びプログラム

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EP4152281A4 (fr) * 2020-06-19 2023-12-06 JVCKenwood Corporation Dispositif d'enregistrement de véhicule, procédé de commande d'enregistrement de véhicule, et programme

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WO2020054030A1 (fr) * 2018-09-13 2020-03-19 三菱電機株式会社 Dispositif de commande de génération d'informations de surveillance dans un véhicule et procédé de commande de génération d'informations de surveillance dans un véhicule
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EP4152281A4 (fr) * 2020-06-19 2023-12-06 JVCKenwood Corporation Dispositif d'enregistrement de véhicule, procédé de commande d'enregistrement de véhicule, et programme
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