JP2022073132A - Vehicle recording control device and vehicle recording control method - Google Patents

Abstract

To appropriately record a video capable of identifying another vehicle related to an event during parking of a vehicle.SOLUTION: A vehicle recording control device includes: a video data acquisition section 120 for acquiring video data imaged by imaging sections 210 for imaging a periphery of a vehicle; a parking detection section 123 for detecting that the vehicle is parking; a moving body detection section 132 for detecting a moving body moving in a vicinity of the vehicle during parking of the vehicle; an other-vehicle detection section 124 for detecting that the moving body is another vehicle existing in the vicinity of the vehicle from the video data; an event detection section 125 for detecting an event with respect to the vehicle; and a recording control section 126 for temporarily preserving video data of detection of the other vehicle, when the other-vehicle detection section 124 detects the other vehicle after the parking detection section 123 detects that the vehicle has parked, and preserve video data resulting from a detected event and the video data of detection of the other vehicle, in association with each other, when the event detection section 125 detects the event during parking of the vehicle.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle record control device and a vehicle record control method.

Drive recorders that are attached to a vehicle and photograph the surroundings of the vehicle, detect an event for the vehicle by detecting an impact, and record an image when the event occurs have become widespread (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2019-288760

When parking in a parking lot or while parking, contact between vehicles may occur. However, while the vehicle is parked, it may be difficult to identify other vehicles that have come into contact with the video that is saved when an event due to contact between the vehicles is detected.

The present invention has been made in view of the above, and an object of the present invention is to appropriately record an image capable of identifying another vehicle related to a parked event.

In order to solve the above-mentioned problems and achieve the object, the vehicle recording control device according to the present invention includes a video data acquisition unit that acquires video data taken by a shooting unit that shoots the surroundings of the vehicle, and the vehicle. A parking detection unit that detects that the vehicle is parked, a moving object detecting unit that detects a moving object that moves in the vicinity of the vehicle while the vehicle is parked, and a moving object detecting unit that detects the moving object. The other vehicle detection unit that detects that the moving object is another vehicle existing in the vicinity of the vehicle from the video data acquired by the video data acquisition unit, the event detection unit that detects an event for the vehicle, and the vehicle parked. When the other vehicle detection unit detects another vehicle after the parking detection unit detects this, the video data in which the other vehicle is detected is temporarily saved, and the event detection unit causes an event while the vehicle is parked. When it is detected, it is provided with a recording control unit that stores the video data caused by the detected event and the video data detected by another vehicle in association with each other.

Further, in order to solve the above-mentioned problems and achieve the object, the vehicle recording control method executed by the vehicle recording control device according to the present invention acquires video data taken by a photographing unit that photographs the surroundings of the vehicle. A video data acquisition step, a parking detection step for detecting that the vehicle is parked, a moving object detection step for detecting a moving object moving in the vicinity of the vehicle while the vehicle is parked, and the moving object detecting step. When a moving object is detected in, the other vehicle detection step for detecting that the detected moving object is another vehicle existing in the vicinity of the vehicle from the video data acquired in the video data acquisition step, and the event for the vehicle are detected. When another vehicle is detected by the other vehicle detection step after detecting that the vehicle is parked in the event detection step and the other vehicle detection step, the video data in which the other vehicle is detected is temporarily saved and the vehicle is described. When an event is detected in the event detection step while the vehicle is parked, the recording control step of associating and storing the video data caused by the detected event and the video data detected by another vehicle is included.

The vehicle record control device and the vehicle record control method according to the present invention have an effect that it is possible to appropriately record an image that can identify another vehicle related to a parked event.

FIG. 1 is a block diagram showing a configuration example of a vehicle recording device according to the first embodiment. FIG. 2 is an explanatory diagram of an arrangement position of a photographing unit mounted on a vehicle. FIG. 3 is a conceptual diagram of loop recording of video data. FIG. 4 is a flowchart showing a processing flow in the vehicle record control device according to the first embodiment. FIG. 5 is an explanatory diagram showing a state in which the vehicle is parked. FIG. 6 is an explanatory diagram showing a state in which a moving object exists in the vicinity of a parked vehicle. FIG. 7 is an explanatory diagram showing a state in which another vehicle is stopped at a position near the parked vehicle. FIG. 8 is an explanatory diagram of video data when another vehicle is detected. FIG. 9 is an explanatory diagram showing a state in which another vehicle is in contact with the vehicle. FIG. 10 is an explanatory diagram of video data when an event is detected while the vehicle is parked. FIG. 11 is a flowchart showing a processing flow in the vehicle record control device according to the second embodiment. FIG. 12 is a flowchart showing a processing flow in the vehicle record control device according to the third embodiment.

Hereinafter, embodiments of the vehicle record control device and the vehicle record control method according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment. Further, the components in the following embodiments include those that can be easily conceived by those skilled in the art, or those that are substantially the same.

[First Embodiment]
<Vehicle recording device>
FIG. 1 is a block diagram showing a configuration example of the vehicle recording device 10 according to the first embodiment. FIG. 2 is an explanatory diagram of an arrangement position of the photographing unit 210 mounted on the vehicle 1. The vehicle recording device 10 is a so-called drive recorder, and is driven by electric power supplied from the vehicle 1. The vehicle recording device 10 may be a portable device that can be used in the vehicle, in addition to the device mounted on the vehicle.

The vehicle recording device 10 includes a photographing unit 210, a CAN interface 220, an acceleration sensor 230, a moving body sensor 240, a recording unit 250, an operation unit 260, a display unit 270, and a GNSS (Global Navigation Satellite System: all). It has a receiver unit 280 (earth navigation satellite system), a map information storage unit 290, and a vehicle record control device (hereinafter referred to as "control device") 100.

The photographing unit 210 is a camera capable of photographing the periphery of the vehicle 1 on which the vehicle recording device 10 is mounted and outputting it as an electric signal. In the first embodiment, the photographing unit 210 includes a first photographing unit 211 for photographing the front and rear of the vehicle 1, and a second photographing unit 216 provided on the left and right sides of the vehicle 1. The first photographing unit 211 has a front camera 212 for photographing the front of the vehicle 1 and a rear camera 213 for photographing the rear of the vehicle 1, and the second photographing unit 216 photographs the left side of the vehicle 1. It has a left-side camera 217 and a right-side camera 218 that photographs the right side of the vehicle 1.

Of these, the front camera 212 included in the first photographing unit 211 is arranged near the windshield in the vehicle interior of the vehicle 1 so as to face the front of the vehicle 1 and photographs the surroundings centered on the front of the vehicle 1. The rear camera 213 included in the first photographing unit 211 is arranged behind the vehicle interior of the vehicle 1 so as to face the rear of the vehicle 1, and photographs the surroundings centered on the rear of the vehicle 1. These front camera 212 and rear camera 213 are cameras used as drive recorders.

The left side camera 217 of the second photographing unit 216 is arranged on the left side surface of the vehicle 1 so as to face the left rear side, and photographs the left rear side of the vehicle 1. The right-side camera 218 included in the second photographing unit 216 is arranged on the right side surface of the vehicle 1 so as to face the rear right side, and photographs the rear right side of the vehicle 1. The left side camera 217 and the right side camera 218 may be either a camera for a side monitor (electronic side mirror) or a camera for displaying a bird's-eye view image. The photographing unit 210 configured as described above outputs the photographed video data to the video data acquisition unit 120 of the control device 100.

The CAN interface 220 is an interface for acquiring various vehicle information via CAN (Control Area Network). The vehicle information includes, for example, information on the running state of the vehicle such as the operating state of the engine, the vehicle speed information, and the side brake information.

The acceleration sensor 230 is a sensor capable of detecting an event for the vehicle 1 on which the vehicle recording device 10 is mounted, and outputs the detection result to the event detection unit 125 of the control device 100. The acceleration sensor 230 is, for example, a sensor that detects acceleration in three axial directions. The three-axis directions are the front-rear direction, the left-right direction, and the up-down direction of the vehicle 1. The acceleration sensor 230 can detect an impact on the vehicle 1 by accelerating in the three axial directions.

The moving body sensor 240 is a sensor used for detecting a moving body moving in the vicinity of the vehicle 1, and outputs the detection result to the moving body detection unit 132 of the control device 100. For example, a plurality of moving body sensors 240 are arranged on each of the front bumper and the rear bumper of the vehicle 1, and an obstacle sensor that detects an obstacle around the vehicle 1 by ultrasonic waves is used. The moving body sensor 240 detects a moving body moving in the vicinity of the vehicle 1 by detecting that the obstacle detected by the moving body sensor 240 is moving relative to the parked vehicle 1. Is possible.

The moving body sensor 240 may detect a moving body moving in the vicinity of the vehicle 1 by means other than ultrasonic waves. The moving body sensor 240 may be configured to be able to detect a moving body moving in the vicinity of the vehicle 1 by using an electromagnetic wave such as infrared rays, for example. Further, the moving object sensor 240 may use the photographing unit 210 to detect a moving object based on the image data photographed by the photographing unit 210.

The recording unit 250 is used for temporary storage and storage of data in the vehicle recording device 10. The recording unit 250 is, for example, a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory (Flash Memory), or a recording medium such as a memory card. Alternatively, it may be an external recording unit wirelessly connected via a communication device (not shown). The recording unit 250 records the video data 300 acquired by the video data acquisition unit 120 based on the control signal output from the recording control unit 126 of the control device 100.

The operation unit 260 is an interface capable of receiving various operations on the vehicle recording device 10. The operation unit 260 accepts, for example, an operation for instructing reproduction of video data, an operation for instructing deletion, and the like. Further, the operation unit 260 can accept an operation for manually recording an event. The operation unit 260 outputs the input operation information to the operation control unit 128 of the control device 100.

As an example, the display unit 270 is a display device unique to the vehicle recording device 10 or a display device shared with other systems including a navigation system. The display unit 270 is a display including, for example, a liquid crystal display (LCD: Liquid Crystal Display) or an organic EL (Organic Electro-Luminence) display. In the first embodiment, the display unit 270 is arranged on the dashboard, the instrument panel, the center console, or the like in front of the driver of the vehicle 1. The display unit 270 displays an image based on the image signal output from the display control unit 129 of the control device 100. The display unit 270 displays the image captured by the photographing unit 210 or the image recorded on the recording unit 250.

The GNSS receiving unit 280 receives radio waves emitted from a plurality of positioning satellites. The GNSS receiving unit 280 outputs the received radio wave signal to the position information acquisition unit 130 of the control device 100.

The map information storage unit 290 stores map information. The map information includes, for example, parking lot information. The map information storage unit 290 outputs the stored map information to the map information acquisition unit 131 of the control device 100. The map information storage unit 290 may be a storage device such as an external server that acquires map information via a communication function (not shown).

The control device 100 is, for example, an arithmetic processing unit (control device) configured by a CPU (Central Processing Unit) or the like. The control device 100 loads the stored program into the memory and executes the instruction included in the program. Therefore, the control device 100 executes the vehicle record control method according to the present invention. Further, the control device 100 is a computer that executes the program according to the present invention. The control device 100 includes an internal memory (not shown), and the internal memory is used for temporary storage of data in the control device 100 and the like. The control device 100 includes a video data acquisition unit 120, a buffer memory 121, a video data processing unit 122, a parking detection unit 123, another vehicle detection unit 124, and an event detection unit 125, which are connected to the bus 110. It has a motion detection unit 132, a recording control unit 126, a reproduction control unit 127, an operation control unit 128, a display control unit 129, a position information acquisition unit 130, and a map information acquisition unit 131.

The video data acquisition unit 120 acquires video data obtained by photographing the surroundings of the vehicle 1. More specifically, the video data acquisition unit 120 acquires video data output by the photographing unit 210 that photographs the surroundings of the vehicle 1. Further, since the vehicle recording device 10 has a plurality of photographing units 210, the video data acquisition unit 120 can acquire the video data photographed by the plurality of photographing units 210. That is, the video data acquisition unit 120 can acquire the video data shot by the first shooting unit 211 and the video data shot by the second shooting unit 216, respectively.

The buffer memory 121 is an internal memory included in the control device 100, and is a memory for temporarily storing video data. The buffer memory 121 is, for example, a memory for temporarily recording video data for a certain period of time acquired by the video data acquisition unit 120 while updating the video data.

The video data processing unit 122 temporarily stores the video data (hereinafter, referred to as “temporary video data”) stored in the buffer memory 121 by, for example, H. Convert to any file format encoded by any codec such as 264 or MPEG-4 (Moving Picture Experts Group), for example MP4 format. The video data processing unit 122 generates video data from the temporary video data by combining the video data for a certain period of time into one file. Specifically, the video data processing unit 122 generates video data of a predetermined time as one file from the temporary video data in the recording order, and creates a file consisting of the video data of the predetermined time according to the shooting time of the shooting unit 210. And generate multiple. As the predetermined time in this case, the time set by the input operation to the operation unit 260 (for example, 60 seconds) is used. The video data processing unit 122 outputs the video data thus generated to the recording control unit 126. Further, the video data processing unit 122 outputs the generated video data to the display control unit 129. The time of the video data generated as one file is set to 60 seconds as an example, but the time is not limited to this. Further, the video data referred to here may be data including audio in addition to the video shot by the shooting unit 210.

The parking detection unit 123 detects that the vehicle 1 is in the parked state based on the vehicle information acquired from the CAN interface 220. The vehicle 1 is in the parked state when the shift position is "parked", the side brake is operated, for example, the time for 5 seconds or more, the speed becomes zero, the engine is stopped, and the like. Alternatively, the vehicle 1 may be in the parked state by an arbitrary trigger such as a user operation. Further, when the parking detection unit 123 indicates that the position where the vehicle 1 is stopped is a parking lot by referring to the map information acquired by the map information acquisition unit 131, the vehicle 1 is in the parked state. It may be detected that there is.

The other vehicle detection unit 124 detects another vehicle from the video data acquired by the video data acquisition unit 120. That is, the other vehicle detection unit 124 detects another vehicle that is another vehicle existing around the vehicle 1 based on the video data acquired by the video data acquisition unit 120.

The event detection unit 125 detects an event for the vehicle 1. The method by which the event detection unit 125 detects an event for the vehicle 1 is arbitrary, but as an example, the event detection unit 125 detects an event based on the detection result of the acceleration sensor 230. In this case, the event detection unit 125 determines from the output of the acceleration sensor 230 that an event has occurred for the vehicle 1 when an acceleration equal to or higher than a predetermined threshold value is applied based on the acceleration applied to the vehicle 1. That is, when the acceleration sensor 230 detects an acceleration equal to or higher than a predetermined threshold value, the event detection unit 125 detects it as an event. The threshold value of the acceleration detected by the event detection unit 125 as an event is a value that can detect the acceleration generated by the contact of another object with the stopped vehicle 1, for example, 0.2G or the like. Set.

The moving object detection unit 132 detects a moving object moving in the vicinity of the vehicle 1 while the vehicle 1 is parked. The moving object detection unit 132 is a state in which the parking detection unit 123 detects that the vehicle 1 is parked, and the moving object detecting unit 132 is a moving object that moves in the vicinity of the parked vehicle 1 based on the information output from the moving object sensor 240. Perform detection.

FIG. 3 is a conceptual diagram of loop recording of video data. In FIG. 3, the recording control unit 126 controls the recording unit 250 to record the video data 300 filed by the video data processing unit 122. When the recording control unit 126 is set to perform loop recording, the recording control unit 126 executes the loop recording process and records the video data 300 filed by the video data processing unit 122 as the overwriteable video data 300. Record in section 250. More specifically, when the recording control unit 126 continues to record the video data 300 generated by the video data processing unit 122 in the recording unit 250 while the loop recording process is being executed, and the capacity of the recording unit 250 becomes full. The oldest video data 300 is overwritten with the new video data 300 and recorded.

The reproduction control unit 127 reproduces the video data selected by the input operation to the operation unit 260. The reproduction control unit 127 controls to reproduce the video data recorded in the recording unit 250 based on the control signals of the selection operation and the reproduction operation according to the operation of the operation unit 260 output from the operation control unit 128. ..

The operation control unit 128 acquires the operation information of the operation received by the operation unit 260, and executes the operation control based on the operation information. The operation control unit 128 acquires, for example, the reproduction information of the video data, and causes the reproduction control unit 127 to reproduce the video data. Further, the operation control unit 128 acquires the erasing operation information indicating the erasing operation of the video data, and causes the recording control unit 126 to erase the video data.

The display control unit 129 controls the display of video data on the display unit 270. That is, the display control unit 129 outputs a video signal displayed by the display unit 270 by reproducing the video imaged by the photographing unit 210 or the video data recorded in the recording unit 250. As a result, the display control unit 129 causes the display unit 270 to display the video data.

The position information acquisition unit 130 calculates the current position information of the vehicle 1 by a known method based on the radio waves received by the GNSS receiving unit 280.

The map information acquisition unit 131 acquires map information from the map information storage unit 290 according to the current position information of the vehicle 1 acquired by the position information acquisition unit 130. As a result, the map information acquisition unit 131 compares the current position information of the vehicle 1 with the map information and identifies the current position of the vehicle 1 on the acquired map information.

<Processing in vehicle recording equipment>
Next, the flow of processing in the control device 100 will be described with reference to FIG. FIG. 4 is a flowchart showing a processing flow in the vehicle record control device 100 according to the first embodiment.

The start of use of the vehicle recording device 10 is, for example, when power is supplied to the vehicle recording device 10 by turning on the power of the engine or the like of the vehicle 1. When the vehicle 1 is not parked, the vehicle recording device 10 performs a function as a known drive recorder. While the vehicle recording device 10 is operating, the process of FIG. 4 is periodically executed. When the process of FIG. 4 is started, the control device 100 determines whether or not the vehicle 1 is parked (step S101). That is, the control device 100 determines whether or not the vehicle 1 equipped with the vehicle recording device 10 is parked, in other words, whether or not the vehicle 1 is parked by the parking detection unit 123. FIG. 5 is an explanatory diagram showing a state in which the vehicle 1 is parked. For example, as shown in FIG. 5, when the vehicle 1 parks in an arbitrary parking lot P and the operation for parking is completed, the vehicle speed becomes 0 km / h and the side brake is applied so as to be in a braking state. It is operated and the shift position is operated to the "parking" position. The parking detection unit 123 acquires vehicle information from the CAN interface 220, and the vehicle information acquired from the CAN interface 220 is based on whether or not the vehicle 1 is in a state of being parked as described above. 1 determines whether or not the vehicle has been parked.

The parking detection unit 123 may determine whether or not the vehicle has been parked based on information other than the vehicle information acquired from the CAN interface 220. For example, the parking detection unit 123 acquires the current position information of the vehicle 1 by the position information acquisition unit 130 based on the radio wave received by the GNSS reception unit 280, and the vehicle 1 is based on the map information acquired by the map information acquisition unit 131. If it can be determined that the current position of the vehicle is a parking lot, it may be determined that the vehicle 1 is parked when the vehicle 1 stops at that position. That is, the control device 100 detects that the vehicle 1 is parked in the parking lot.

When it is determined by the determination by the parking detection unit 123 that the vehicle 1 is not parked (step S101: No determination), the control device 100 ends the process of FIG. 4, and the process of FIG. 4 is executed again. When it is started, it starts again from step S101.

When the parking detection unit 123 determines that the vehicle 1 is parked by the determination by the parking detection unit 123 (step S101: Yes determination), parking monitoring is started (step S102). In parking monitoring, when the vehicle 1 is parked, the acceleration sensor 230 and the moving body sensor 240 are operated to detect the occurrence of an event by the acceleration sensor 230 and move around the vehicle 1 by the moving body sensor 240. Detect moving objects.

Next, the control device 100 determines whether or not the moving object is detected by the moving object detecting unit 132 (step S103). FIG. 6 is an explanatory diagram showing a state in which a moving body M exists in the vicinity of the parked vehicle 1. For example, as shown in FIG. 6, when another vehicle V, which is another vehicle, tries to park in a section P adjacent to the parking section P in which the vehicle 1 is parked, the other vehicle V is own. Move in the vicinity of vehicle 1. The moving object sensor 240 included in the vehicle recording device 10 continuously detects the presence or absence of an object existing in the vicinity of the vehicle 1 and the distance to the object if the object is present in the vicinity of the vehicle 1, and the detection result is the moving object. Output to the detection unit 132. Therefore, when another vehicle V is present in the vicinity of the vehicle 1, the moving body sensor 240 detects the distance from the other vehicle V and outputs the detection result to the moving body detection unit 132. Further, since the moving body sensor 240 continuously detects the distance to the other vehicle V, when the distance between the moving body sensor 240 and the other vehicle V changes with the passage of time due to the movement of the other vehicle V, the moving body sensor 240 continuously detects the distance to the other vehicle V. The moving body sensor 240 continuously outputs the changing distance to the other vehicle V to the moving body detecting unit 132.

Upon receiving the detection result of the moving body sensor 240, the moving body detecting unit 132 moves the moving body detecting unit 132 to the vehicle 1 in the vicinity of the parked vehicle 1 based on the fact that the distance output from the moving body sensor 240 changes with the passage of time. On the other hand, it is detected that there is a moving body M that moves relative to each other. Further, since a plurality of moving body sensors 240 are arranged in the vehicle 1, the moving body detection is performed by integrating the changes in the distances to the objects located in the vicinity of the vehicle 1 detected by the plurality of moving body sensors 240. The unit 132 detects a moving body M moving in the vicinity of the vehicle 1.

When it is determined that the moving object is detected by the moving object detecting unit 132 (step S103: Yes determination), it is determined whether or not the moving object is a nearby vehicle (step S104). Specifically, when the moving object is detected by the moving object detecting unit 132, the photographing unit 210 starts shooting and the video data acquisition unit 120 acquires the video data. At that time, the video data acquisition unit 120 acquires the video data captured by the plurality of imaging units 210. The other vehicle detection unit 124 detects whether or not the moving object is another vehicle existing in the vicinity of the vehicle 1 based on the video data acquired by the video data acquisition unit 120. That is, when the moving object detection unit 132 detects a moving object, the other vehicle detecting unit 124 has acquired a plurality of images that the video data acquisition unit 120 has acquired that the detected moving object is another vehicle existing in the vicinity of the vehicle 1. Detect from data.

The other vehicle detection unit 124 detects another vehicle by using, for example, a vehicle recognition dictionary. The vehicle recognition dictionary is stored in advance in the internal memory of the control device 100 as a dictionary capable of collating that the moving object shown in the video data is a vehicle. The other vehicle detection unit 124 detects a moving object by the moving object detecting unit 132, and collates a plurality of video data captured by the photographing unit 210 that has started photographing with a vehicle recognition dictionary, thereby collating the other vehicle with the video data. Is detected.

FIG. 7 is an explanatory diagram showing a state in which another vehicle V is stopped at a position near the parked vehicle 1. The other vehicle detection unit 124 detects the other vehicle V from the plurality of video data acquired by the video data acquisition unit 120, so that, for example, as shown in FIG. 7, the moving body M detected by the moving body detecting unit 132 , Detects that it is another vehicle V stopped at a position near the vehicle 1. That is, when the vehicle 1 is parked, no other vehicle is parked in the parking lot P (see FIG. 5) adjacent to the parking lot P in which the vehicle 1 is parked, and the moving body M is used after the vehicle 1 is parked. When the other vehicle V is parked and the other vehicle V stops at a position near the vehicle 1, the other vehicle detection unit 124 detects the other vehicle V from the video data acquired by the video data acquisition unit 120. .. Further, when the vehicle 1 is parked, another vehicle is already parked in the parking lot P where the vehicle 1 is parked, and the other vehicle leaves the parking lot while the vehicle 1 is parked, and another vehicle moves. It is also detected when the goods are received.

The other vehicle detection unit 124 does not need to detect all the other vehicles reflected in the video of the video data, but may detect the other vehicles existing in the vicinity of the vehicle 1. The other vehicle detection unit 124 has a predetermined area ratio of, for example, 20% or more in the image captured by the photographing unit 210, such as another vehicle whose parking position is adjacent to the parking position of the vehicle 1. It is preferable to recognize other vehicles that occupy an area ratio. Further, the other vehicle detection unit 124 determines that the detected other vehicle has stopped when the detected position of the other vehicle has stopped or has almost stopped in the image.

When it is detected by the other vehicle detection unit 124 that the moving body detected by the moving body detecting unit 132 is another vehicle existing in the vicinity of the vehicle 1, and the moving body is determined to be another vehicle (step S104: Yes determination). , Another vehicle image is temporarily saved (step S105). FIG. 8 is an explanatory diagram of the video data 300 when another vehicle is detected. When the recording control unit 126 detects that the vehicle 1 is parked by the parking detection unit 123 and then detects another vehicle by the other vehicle detection unit 124 from the video data 300 acquired by the video data acquisition unit 120, the recording control unit 126 detects the other vehicle. The video data 300 in which another vehicle is detected is set to be treated as the other vehicle video data 310, and temporarily stored. That is, when a moving body moving in the vicinity of the parked vehicle 1 is detected and a plurality of video data 300 are acquired by the video data acquisition unit 120, the moving body reflected in the video data 300 is another vehicle. When the other vehicle detection unit 124 detects the above, the recording control unit 126 temporarily stores the video data 300 detected by the other vehicle in the recording unit 250 as the other vehicle video data 310. As a result, the recording control unit 126 temporarily stores the video data 300 in which the other vehicle is detected among the video data 300 shot by the plurality of shooting units 210. The term "temporary save" as used herein means that the video data 300 when another vehicle is detected is flagged as having been detected by another vehicle, saved in association with the event video data, or the temporary save is canceled. Until it is done, processing such as prohibiting overwriting is performed.

Further, after the video data detected by another vehicle is temporarily stored in the recording unit 250 as the video data of another vehicle while the vehicle 1 is parked, the shooting by the shooting unit 210 may be continued as it is, and the shooting may be continued. You may stop. FIG. 8 is shown as a conceptual diagram when shooting by the shooting unit 210 is stopped after the video data 310 of another vehicle is temporarily stored.

Next, the control device 100 determines whether or not an event for the vehicle 1 has been detected by the event detection unit 125 (step S106). Specifically, the event detection unit 125 detects the occurrence of an event based on whether or not the acceleration detected by the acceleration sensor 230 is equal to or higher than a preset threshold value. That is, when the acceleration detected by the acceleration sensor 230 is less than the threshold value, the event detection unit 125 does not detect an event for the vehicle 1. On the other hand, when the acceleration detected by the acceleration sensor 230 is equal to or greater than the threshold value, the event detection unit 125 detects that a large impact is generated on the vehicle 1 and an event is generated on the vehicle 1.

FIG. 9 is an explanatory diagram showing a state in which the other vehicle V is in contact with the vehicle 1. Since the parked vehicle 1 does not move by itself, as an event for the parked vehicle 1, for example, as shown in FIG. 9, another vehicle V comes into contact with the vehicle 1. As a case where the other vehicle V comes into contact with the vehicle 1, for example, when the other vehicle V parked in the parking lot P adjacent to the parking lot P in which the vehicle 1 is parked, as shown in FIG. 7, leaves the parking lot. As shown in FIG. 9, a case where the vehicle comes into contact with the vehicle 1 can be considered. Further, as another case, for example, when the other vehicle V enters the parking lot P, it may come into contact with the vehicle 1 as shown in FIG.

When the event detection unit 125 detects that an event has occurred for the vehicle 1 (step S106: Yes determination), the video for a predetermined period caused by the event and the temporarily saved video of another vehicle are stored in association with each other (step S106: Yes determination). Step S107). FIG. 10 is an explanatory diagram of the video data 300 when an event is detected while the vehicle 1 is parked. When the event detection unit 125 detects the occurrence of an event, the vehicle recording device 10 according to the first embodiment starts shooting by the shooting unit 210 and acquires the video data 300 by the video data acquisition unit 120. That is, since the vehicle recording device 10 temporarily stores the other vehicle video data 310 and then stops the shooting by the shooting unit 210, the event detection unit 125 generates an event while the shooting by the shooting unit 210 is stopped. When it is detected, shooting by the shooting unit 210 is resumed, and the video data 300 is acquired by the video data acquisition unit 120. As a result, it is possible to record the video data 300 immediately after detecting the event that occurred while the vehicle 1 is parked.

Further, the recording control unit 126 sets and saves the video data 300 for a predetermined period from the time of the event occurrence as the event video data 320 among the video data 300 captured immediately after the event is detected in this way. The predetermined time in this case is a time assumed as a time required to verify the cause of the event generated in the vehicle 1, and for example, 60 seconds from the event detection is set.

Further, when the event detection unit 125 detects an event while the vehicle 1 is parked, the recording control unit 126 associates the event video data 320, which is video data caused by the detected event, with the other vehicle video data 310. save. Specifically, the recording control unit 126 uses the event video data 320 and the other vehicle video data 310 so that the event video data 320 can be easily played back when the event video data 320 is played back. Associate.

For example, the recording control unit 126 causes the other vehicle video data 310 to be continuously played when the event video data 320 is played back, or the event video data 320 is divided when the other vehicle video data 310 is played back. Associate both video data so that they can be played back simultaneously as a screen or picture-in-picture.

Saving the event video data 320 and the other vehicle video data 310 in association with each other means that, for example, both the video data 320 and the other vehicle video data 310 are reproduced simultaneously or continuously. Save the data as overwriting prohibited. Alternatively, the event video data 320 and the other vehicle video data 310 are stored as combined video data as overwriting prohibition so as to be continuously reproduced.

Note that, as in FIG. 8, when the vehicle 1 is parked, the recording of the video data 300 by the loop recording is stopped, and the other vehicle video data 310 temporarily saved by detecting the other vehicle is shown in FIG. , Is a diagram conceptually showing event video data 320 saved by event detection. The recording control unit 126 stores the event video data 320 and the other vehicle video data 310 in association with each other.

After the processing of step S107 is completed, the parking detection unit 123 determines whether or not parking is completed (step S108). That is, the control device 100 determines whether or not the parking of the vehicle 1 equipped with the vehicle recording device 10 is completed by the parking detection unit 123. The parking detection unit 123 determines that the parking is completed when the power of the engine or the like of the vehicle 1 is turned on and the electric power is supplied to the vehicle recording device 10. Further, the parking detection unit 123 acquires vehicle information from the CAN interface 220, the shift position is operated to a position other than "parking", the braking state by the side brake is released, and the vehicle speed becomes higher than 0 km / h. It may be determined whether or not the parking of the vehicle 1 is completed by determining whether or not the vehicle 1 has been parked.

When it is determined from the determination by the parking detection unit 123 that the parking of the vehicle 1 is completed (step S108: Yes determination), the control device 100 ends the process of FIG. In this case, the other vehicle video data temporarily saved in step S105 is canceled from the temporary saving and is subject to erasure or overwriting. Further, in the video data of other vehicles temporarily saved in step S105, the event is not detected (step S106: No determination), the parking is not completed (step S108: No determination), and the moving object is detected again. If (step S103: Yes determination), the temporary storage of the previous video data of another vehicle is canceled, and the new video data of another vehicle is temporarily saved.

Further, when it is determined from the determination by the parking detection unit 123 that the parking of the vehicle 1 has not been completed (step S108: No determination), the process returns to step S103 and determines whether or not a moving object has been detected.

If the event detection unit 125 does not detect that an event has occurred for the vehicle 1 in the determination in step S106 (step S106: No determination), the process proceeds to step S108 to determine whether parking has been completed. Determination (step S108).

Further, when it is determined in step S103 that the moving object is not detected (step S103: No determination), or in the determination in step S104, the detected moving object is another vehicle located in the vicinity of the vehicle 1. When it is determined that the event is not detected (step S104: No determination), the event detection unit 125 determines whether or not an event for the vehicle 1 has been detected (step S109). That is, based on the acceleration detection result of the acceleration sensor 230, the event detection unit 125 detects the occurrence of an event based on whether or not it is equal to or higher than a preset threshold value.

When the event detection unit 125 detects that an event has occurred for the vehicle 1 (step S109: Yes determination), the video for a predetermined period caused by the event is saved (step S110).

After saving the event video data in step S110, the parking detection unit 123 determines whether or not parking is completed (step S111). That is, the control device 100 determines whether or not the parking of the vehicle 1 equipped with the vehicle recording device 10 is completed in the same manner as in the process of step S108.

When it is determined from the determination by the parking detection unit 123 that the parking of the vehicle 1 is completed (step S111: Yes determination), the control device 100 ends the process of FIG. Further, when it is determined from the determination by the parking detection unit 123 that the parking of the vehicle 1 has not been completed (step S111: No determination), the process returns to step S103 to determine whether or not a moving object has been detected.

Further, if the event detection unit 125 does not detect that an event has occurred for the vehicle 1 in the determination in step S109 (step S109: No determination), the process proceeds to step S111 and whether or not parking is completed is determined. Determination (step S111).

<Effect>
As described above, in the first embodiment, when a moving body moving in the vicinity of the parked vehicle 1 is detected by the moving body detection unit 132, the detected moving body is another vehicle moving in the vicinity of the vehicle 1. Is detected by the other vehicle detection unit 124 based on the video data, the other vehicle video data in which the other vehicle is detected is temporarily stored. Further, when the event detection unit 125 detects an event while the vehicle 1 is parked after temporarily storing the video data of another vehicle, the event video data which is the video data caused by the detected event and the video data of the other vehicle are stored. Associate and save. As a result, even if an event occurs in the parked vehicle 1, by referring to the event video data and the other vehicle video data, it is possible to appropriately record a video that can identify the other vehicle that caused the event. It can be carried out. For example, when an event occurs due to the contact of another vehicle with the parked vehicle 1, even if the other vehicle runs as it is and hits and runs, the other vehicle image data in which the other vehicle is detected is referred to. By doing so, it is possible to appropriately identify the other vehicle that has hit and run.

Further, the video data acquisition unit 120 acquires the video data taken by the plurality of shooting units 210, and the recording control unit 126 captures the video data taken by the plurality of shooting units 210, and the other vehicle in which another vehicle is detected is detected. Since the video data is temporarily saved, other vehicles can be detected more reliably. That is, when a moving object moving in the vicinity of the vehicle 1 is detected, the moving object can be photographed over a wide range around the vehicle 1, and another vehicle can be detected over a wide range around the vehicle 1. It can be performed. As a result, while the vehicle 1 is parked, other vehicles approaching the vehicle 1 can be detected more reliably, and when an event occurs, the other vehicle that caused the event can be more appropriately identified. be able to.

Further, in order to detect that the moving object detected by the moving object detecting unit 132 is another vehicle stopped at a position near the vehicle 1, the other vehicle detecting unit 124 parks the vehicle 1 and then places the moving object in the vicinity of the vehicle 1. Other parked vehicles can be detected. Therefore, it is possible to more reliably detect a vehicle that easily comes into contact with the vehicle 1 and is likely to cause an event.

[Second Embodiment]
The vehicle recording device 10 according to the second embodiment has the same configuration as the vehicle recording device 10 according to the first embodiment, except that the license plates of other vehicles are detected. Since the other configurations and processes are the same as those in the first embodiment, the description thereof will be omitted and the same reference numerals will be given.

In the vehicle recording device 10 according to the second embodiment, when it is detected that the moving body moving in the vicinity of the vehicle 1 while the vehicle 1 is parked is another vehicle existing in the vicinity of the vehicle 1, the other vehicle Detects the license plate provided. That is, in the second embodiment, the other vehicle detection unit 124 detects the other vehicle and the license plate of the other vehicle from the video data acquired by the video data acquisition unit 120.

FIG. 11 is a flowchart showing a processing flow in the vehicle record control device 100 according to the second embodiment.

When the moving body detected by the moving body detecting unit 132 in step S104 is detected by the other vehicle detecting unit 124 to be another vehicle existing in the vicinity of the vehicle 1, and the moving body is determined to be another vehicle. (Step S104: Yes determination), it is determined whether or not the license plate of another vehicle in the vicinity is detected (step S121). That is, the other vehicle detection unit 124 that detects another vehicle based on the video data acquired by the video data acquisition unit 120 detects the other vehicle from the video data acquired by the video data acquisition unit 120, and further to the other vehicle. Detects the license plate to be attached. That is, the other vehicle detection unit 124 further detects the other vehicle in the video data in which the other vehicle is detected, and detects whether or not the license plate is included in the video data in which the other vehicle is detected.

When the license plate of another vehicle moving in the vicinity of the vehicle 1 is detected by the other vehicle detection unit 124 (step S121: Yes determination), the image of the other vehicle in which the license plate is detected is temporarily saved (step S105). That is, among the video data acquired by the video data acquisition unit 120, the recording control unit 126 temporarily stores the video data in which the license plate of the other vehicle is detected together with the other vehicle as the video data of the other vehicle.

Next, the control device 100 determines whether or not an event for the vehicle 1 has been detected by the event detection unit 125 (step S106). When the event detection unit 125 detects that an event has occurred for the vehicle 1 by this determination (step S106: Yes determination), the video for a predetermined period caused by the event and the video temporarily stored in step S105 are stored. Another vehicle image is associated and saved (step S107).

Further, when it is determined in step S103 that the moving object M is not detected (step S103: No determination), or in the determination in step S104, the detected moving object M is another vehicle located in the vicinity of the vehicle 1. When it is determined that the detection of V is not performed (step S104: No determination), or in the determination in step S121, the license plate of the other vehicle V moving in the vicinity of the vehicle 1 is used as the license plate of the other vehicle. When the event is not detected in 124 (step S121: No determination), the event detection unit 125 determines whether or not an event for the vehicle 1 has been detected (step S109). That is, when it is possible to detect that the moving body M is another vehicle existing in the vicinity of the vehicle 1 based on the video data 300 acquired by the video data acquisition unit 120, but the license plate of the other vehicle cannot be detected ( Step S121: No determination) proceeds to step S109 to determine whether or not an event for the vehicle 1 has been detected.

<Effect>
As described above, in the second embodiment, the other vehicle detection unit 124 not only detects that the moving object is another vehicle from the video data acquired by the video data acquisition unit 120, but also detects the license plate of the other vehicle. It also detects and temporarily saves the video data for which the license plate is detected as video data for other vehicles. Therefore, it is possible to more reliably identify another vehicle that moves in the vicinity of the vehicle 1 while the vehicle 1 is parked, based on the information written on the license plate. As a result, even when an event occurs in the parked vehicle 1, the cause of the event can be more reliably identified by referring to the event video data and the other vehicle video data in which the license plate is detected. .. That is, the other vehicle that has come into contact with the parked vehicle 1 can be more reliably identified based on the information written on the license plate displayed in the video data of the other vehicle. As a result, it is possible to more appropriately record an image that can identify another vehicle related to the parked event of the vehicle 1.

[Third Embodiment]
The vehicle recording device 10 according to the third embodiment has the same configuration as the vehicle recording device 10 according to the first embodiment, and is characterized in that it specifies a method for reproducing the stored video data. Since the other configurations are the same as those of the first embodiment, the description thereof will be omitted and the same reference numerals will be given.

In the vehicle recording device 10 according to the third embodiment, as illustrated in the first embodiment and the second embodiment, the video data in which the event video data is associated with the other vehicle video data is reproduced. .. The reproduction of the video data is executed by inputting the reproduction instruction to the operation unit 260.

The video data stored in the recording unit 250 may be reproduced by another device such as a PC (Personal Computer) in addition to the reproduction by the vehicle recording device 10.

Next, with reference to FIG. 12, the flow of processing when reproducing the event video data will be described. FIG. 12 is a flowchart showing a processing flow in the vehicle record control device 100 according to the third embodiment. In the processing procedure for reproducing the event video data, the reproduction control unit 127 determines whether or not there is an event video data reproduction instruction from the operation control unit 128 (step S201).

When it is determined that there is no event video data reproduction instruction (step S201: No determination), the control device 100 ends the process for reproducing the event video data. When it is determined that there is a reproduction instruction of the event video data (step S201: Yes determination), the reproduction control unit 127 determines whether or not the event video data instructed to be reproduced is associated with other vehicle image data. (Step S202).

When it is determined by the determination by the reproduction control unit 127 that the event video data for which reproduction is instructed is associated with the other vehicle image data (step S202: Yes determination), the event image data and the other vehicle image data Playback is started (step S203).

The reproduction of the event video data and the other vehicle video data started in step S203 is, for example, the simultaneous reproduction of the event video data and the other vehicle video data on the same screen, or the continuous reproduction of the event video data and the other vehicle video data. And play back, both video data are played back. Alternatively, when the event video data is played back, the other vehicle video data can be played back by urging the other vehicle video data to be played back by indicating that the other vehicle video data exists.

Next, the reproduction control unit 127 determines whether or not the reproduction of the event video data and the other vehicle image data is completed (step S204), and if the reproduction is not completed (step S204: No determination), the reproduction is completed. Continue playing until you do. The end of reproduction includes the end of reproduction by the user's operation in addition to the end of reproduction of event video data and other vehicle video data.

When it is determined that the reproduction of the event video data and the other vehicle video data is completed (step S204: Yes determination), the control device 100 ends the process for reproducing the event video data.

When it is determined by the determination in step S202 that the event video data for which the reproduction instruction has been given is not associated with the other vehicle video data (step S202: No determination), the reproduction of the event video data is started (step S205). ..

After the reproduction of the event video data is started, the reproduction control unit 127 determines whether or not the reproduction of the event video data that has started reproduction is completed (step S204), and if the reproduction is not completed (step S204: No determination). ) Continues to play until the end of playback. When the reproduction of the event video data is completed (step S204: Yes determination), the process for reproducing the event video data is terminated.

<Effect>
As described above, in the third embodiment, when the event video data, which is the video data when the event detected while the vehicle 1 is parked, is instructed to be reproduced, the event video data is associated with the other vehicle video data. If so, other vehicle video data is also reproduced in addition to the event video data, so that other vehicles related to the event can be more appropriately identified. As a result, the usefulness of the vehicle recording device 10 when the vehicle 1 is parked can be enhanced.

Although the vehicle recording device 10 according to the present invention has been described so far, it may be implemented in various different forms other than the above-mentioned first embodiment to the third embodiment.

Each component of the illustrated vehicle recording device 10 is functionally conceptual and does not necessarily have to be physically configured as shown in the figure. That is, the specific form of each device is not limited to the one shown in the figure, and all or part of the device is functionally or physically dispersed or integrated in an arbitrary unit according to the processing load and usage status of each device. You may.

The configuration of the vehicle recording device 10 is realized, for example, by a program loaded in a memory as software. In the above embodiment, it has been described as a functional block realized by cooperation of these hardware or software. That is, these functional blocks can be realized in various forms by hardware only, software only, or a combination thereof.

The above-mentioned components include those that can be easily assumed by those skilled in the art and those that are substantially the same. Further, the above configurations can be combined as appropriate. Further, various omissions, substitutions or changes of the configuration can be made without departing from the gist of the present invention.

1 Vehicle 10 Vehicle recording device 100 Vehicle recording control device 110 Bus 120 Video data acquisition unit 121 Buffer memory 122 Video data processing unit 123 Parking detection unit 124 Other vehicle detection unit 125 Event detection unit 126 Recording control unit 127 Playback control unit 128 Operation control unit 129 Display control unit 130 Position information acquisition unit 131 Map information acquisition unit 132 Motion detection unit 210 Imaging unit 211 First imaging unit 212 Front camera 213 Rear camera 216 Second imaging unit 217 Left side camera 218 Right side camera 220 CAN Interface 230 Acceleration sensor 240 Moving object sensor 250 Recording unit 260 Operation unit 270 Display unit 280 GNSS receiving unit 290 Map information storage unit

Claims (5)

The video data acquisition unit that acquires the video data taken by the shooting unit that shoots the surroundings of the vehicle, and the video data acquisition unit.
A parking detection unit that detects that the vehicle is parked,
A moving object detection unit that detects a moving object moving in the vicinity of the vehicle while the vehicle is parked.
When the moving object detection unit detects a moving object, the other vehicle detection unit detects that the detected moving object is another vehicle existing in the vicinity of the vehicle from the video data acquired by the video data acquisition unit.
An event detection unit that detects an event for the vehicle,
When the other vehicle detection unit detects another vehicle after the parking detection unit detects that the vehicle has parked, the video data in which the other vehicle is detected is temporarily stored, and the event is held while the vehicle is parked. When the detection unit detects an event, the recording control unit that stores the video data caused by the detected event and the video data detected by another vehicle in association with each other,
Vehicle record control device. The video data acquisition unit acquires video data shot by a plurality of the shooting units having different shooting directions.
The recording control unit temporarily stores video data in which at least another vehicle is detected among the video data shot by the plurality of shooting units.
The vehicle record control device according to claim 1. The other vehicle detection unit detects another vehicle and the license plate of the other vehicle from the video data acquired by the video data acquisition unit.
The recording control unit temporarily stores video data in which the other vehicle detection unit detects the other vehicle and the license plate of the other vehicle, and the video data caused by the detected event and the license plate of the other vehicle and the other vehicle. Save in association with the detected video data,
The vehicle record control device according to claim 1 or 2. The other vehicle detection unit detects that the moving object detected by the moving object detecting unit is another vehicle stopped at a position in the vicinity of the vehicle.
The vehicle record control device according to any one of claims 1 to 3. The video data acquisition step to acquire the video data taken by the shooting unit that shoots the surroundings of the vehicle,
A parking detection step that detects that the vehicle is parked, and
A moving object detection step for detecting a moving object moving in the vicinity of the vehicle while the vehicle is parked, and a moving object detection step.
When the moving object is detected in the moving object detection step, the other vehicle detection step for detecting that the detected moving object is another vehicle existing in the vicinity of the vehicle from the video data acquired in the video data acquisition step, and the other vehicle detection step.
An event detection step for detecting an event for the vehicle and
When another vehicle is detected by the other vehicle detection step after detecting that the vehicle is parked in the parking detection step, the video data in which the other vehicle is detected is temporarily stored, and the event is performed while the vehicle is parked. When an event is detected in the detection step, a recording control step that stores the video data caused by the detected event and the video data detected by another vehicle in association with each other,
The vehicle record control method executed by the vehicle record control device.

Images