WO2023190047A1 - 映像記録装置 - Google Patents

映像記録装置 Download PDF

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Publication number
WO2023190047A1
WO2023190047A1 PCT/JP2023/011540 JP2023011540W WO2023190047A1 WO 2023190047 A1 WO2023190047 A1 WO 2023190047A1 JP 2023011540 W JP2023011540 W JP 2023011540W WO 2023190047 A1 WO2023190047 A1 WO 2023190047A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording
trigger
video
video data
recording device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2023/011540
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
尚 多胡
昌輝 日暮
正道 田中
雅嗣 荒井
理沙 齋藤
大斗 坂井
毅一 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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.)
Filing date
Publication date
Application filed by Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to EP23780058.6A priority Critical patent/EP4451238A4/en
Priority to CN202380019029.1A priority patent/CN118633113A/zh
Priority to KR1020247024829A priority patent/KR102923589B1/ko
Priority to US18/729,875 priority patent/US20250119636A1/en
Priority to JP2024512277A priority patent/JP7672575B2/ja
Publication of WO2023190047A1 publication Critical patent/WO2023190047A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/02—Registering or indicating working or idle time only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/61—Control of cameras or camera modules based on recognised objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/20—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/22—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle
    • B60R1/23—Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles for viewing an area outside the vehicle, e.g. the exterior of the vehicle with a predetermined field of view
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
    • 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
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/188—Capturing isolated or intermittent images triggered by the occurrence of a predetermined event, e.g. an object reaching a predetermined position
    • 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
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station

Definitions

  • the present invention relates to a video recording device mounted on a construction machine.
  • Patent Document 1 In automobiles, for the purpose of investigating the cause of an accident, there is a recording device that attaches a camera to the car body to record surrounding images and save the image data, as disclosed in Patent Document 1, for example. Commonly used. In recent years, more detailed information on the situation can be obtained by storing not only video but also vehicle body data such as CAN signals and the video.
  • triggers are generally triggered by brake signals or body shocks, but there are always workers and equipment around construction machinery, and depending on the work, the construction machinery may be constantly subjected to shocks. , a trigger similar to a car is not appropriate. Therefore, it is required to reliably detect near misses at sites where construction machinery is used.
  • a video recording device includes: a recording unit that records video data temporarily or non-temporarily; a trigger determination unit that determines whether a recording trigger is enabled; When it is determined that the recording trigger is enabled, video data for a predetermined period of time before and after the time when the recording trigger was activated is temporarily stored in the recording unit from among the video data temporarily recorded in the recording unit. and a trigger determination unit that activates the recording trigger when an object detection sensor attached to the vehicle body detects an object and a predetermined operation on the construction machine is restricted. It is determined that there is.
  • the trigger can be activated at the timing when recording is required, and the accuracy of extracting near misses can be improved.
  • FIG. 1 is a diagram showing the structure of a construction machine having a camera and an object detection sensor.
  • FIG. 2 is a block diagram showing the functional configuration of a camera and an object detection sensor included in the construction machine.
  • FIG. 1 is a functional block diagram of a video recording device and a vehicle body controller according to the present invention. A timing chart showing conditions under which the recording function is enabled.
  • 5 is a flowchart showing processing for generating video data.
  • 5 is a flowchart showing a process for determining a recording trigger.
  • FIG. 1 shows a construction machine 100 having a video recording device according to the present invention.
  • the construction machine 100 is equipped with an engine 1 as a prime mover and a main pump 2 driven by the engine 1, and the lower traveling body 3, upper rotating body 4, and front device 5 are powered by hydraulic oil sent by the main pump 2. operate independently.
  • the lower traveling body 3 drives and controls a pair of crawler tracks 6 (only one side is shown in FIG. 1) with a traveling hydraulic motor 7.
  • the upper rotating body 4 is connected to the lower traveling body 3 so as to be able to rotate, and the upper rotating body 4 is driven and controlled by a swing hydraulic motor 8.
  • the front device 5 is mounted on the upper revolving body 4, and drives a boom 9, a boom cylinder 10 for driving the boom 9, an arm 11, an arm cylinder 12 for driving the arm 11, a bucket 13, and a bucket 13. It is composed of a bucket cylinder 14 for causing Each cylinder expands and contracts with hydraulic oil sent from the main pump 2, and drives the rotating shaft 15 of the upper revolving structure 4 and the boom 9, the rotating shaft 16 of the boom 9 and arm 11, and the rotating shaft 17 of the arm 11 and bucket 13, respectively. This allows for work such as excavation and land leveling.
  • FIG. 2 is a block diagram showing the functional configuration of the camera and object detection sensor mounted on the construction machine 100.
  • a plurality of cameras 18 and object detection sensors 19 for monitoring the surroundings are installed outside the driver's seat of the construction machine 100, and a monitor controller 20, a vehicle body controller 21, a monitor 22, and a video recording device are installed inside the driver's seat.
  • a device 23 is installed.
  • One or more cameras 18 are arranged at the periphery of the vehicle body so that images of the entire surroundings of the construction machine 100 can be obtained.
  • the camera 18 is connected to the monitor controller 20 and transmits the acquired video to the monitor controller 20.
  • the camera 18 can constantly acquire images of the surroundings of the construction machine 100 and transmit the images to the monitor controller 20 in real time.
  • the object detection sensor 19 is composed of an infrared sensor, an ultrasonic sensor, a radar, LiDAR (Light Detection and Ranging), a camera, or the like.
  • One or more object detection sensors 19 are arranged at the peripheral edge of the vehicle body so that objects can be detected all around the construction machine 100.
  • the object detection sensor 19 can measure the position of the detected object by measuring the distance to the detected object and the direction in which the object is detected.
  • the position of the object to be measured is the relative position of the object to the construction machine 100.
  • the object detection sensor 19 is connected to the vehicle body controller 21 and transmits information regarding the position of the detected object to the vehicle body controller 21.
  • Each controller and the video recording device 23 can communicate with each other via an in-vehicle network 24 such as CAN. Moreover, these are mounted in the vehicle body as an ECU equipped with a CPU and memory. Furthermore, the video recording device 23 has a cache for temporarily recording video data captured by the camera 18 and a storage for non-temporarily (non-volatile) recording a part of the temporarily recorded video data.
  • the camera 18 is connected to a monitor controller 20, and the object detection sensor 19 is connected to a vehicle body controller 21.
  • a monitor controller 20 synthesizes the surrounding images input from the cameras 18, and outputs an image obtained by dividing the images of each camera 18 or an image obtained by blending the boundaries of adjacent cameras 18 to a monitor 22 as a surround view.
  • the monitor 22 displays the input composite video, and further outputs the video displayed on the monitor 22 to the video recording device 23.
  • the video data temporarily recorded in the video recording device 23 is recorded in the cache when the video recording device 23 is powered on (during startup), and is erased when the video recording device 23 is powered off. Video data that is non-temporarily recorded in the storage is continuously recorded (saved) even after the power is turned off.
  • a communication terminal 25 is connected to the video recording device 23, which records the input video on the monitor 22 and the vehicle body information flowing to the in-vehicle network 24, connects to the Internet with the communication terminal 25, and uploads it to the server 26 and the server. 26 to the video recording device 23.
  • the vehicle body controller 21 transmits the detection signal of the object detection sensor 19 to the video recording device 23 via the vehicle network 24.
  • the video recording device 23 receives the detection signal, the video recording device 23 non-temporarily records the video data before and after object detection and the operation information data, which were temporarily recorded in the cache, in the storage for a preset period.
  • the vehicle body position data acquired by the communication terminal 25 at the time of object detection is also recorded at the same time, and linked to the recorded video data and operation information data.
  • the vehicle body controller 21 is a controller that performs hydraulic control of the machine, and acquires the amount of operation of the swing lever 27 and the amount of operation of the travel lever 28 operated by the operator.
  • the state of the gate lock device 29 (locked state or unlocked state) that permits or prohibits operation of the vehicle body is also acquired.
  • the gate lock device 29 in this embodiment is arranged, for example, as a gate lock lever, and when in the locked state, disables the operation of the operating lever and prohibits operation of the vehicle body, and when in the unlocked state, enables the operation of the operating lever. to allow vehicle operation.
  • the gate lock lever is connected to the vehicle body controller 21 and transmits a gate lock signal indicating the operating state of the gate lock lever to the vehicle body controller 21.
  • the gate lock signal may be a pulse signal indicating the ON or OFF state of the gate lock lever.
  • the vehicle body controller 21 detects that there is a possibility that a person or an object is present around the vehicle body.
  • the operation of the swing lever 27 and the drive lever 28 is restricted to prevent contact with people or objects during running and turning operations. Specifically, operations by the swing lever 27 and the travel lever 28 are disabled to put the upper swing structure 4 and the lower travel structure 3 into a non-driving state, or even if the swing lever 27 and the drive lever 28 are operated, the operation is disabled.
  • the operating speed of the upper revolving structure 4 and lower traveling structure 3 may be extremely slowed by limiting the operating speed instructed by the lever.
  • the video recording device 23 records the video data before and after the object detection and the vehicle body data, which were temporarily recorded in the cache, in the storage for a preset period.
  • the object detection sensor 19 detects a person or the like in the operator's blind spot and the operation is disabled, and the operator performs a turning or traveling operation without noticing this, the operation becomes effective. If the situation remains the same, it is assumed that turning and traveling are performed, and the object detection sensor 19 detects a person, etc. in the operator's blind spot and the operation is restricted, and the operator performs the turning or traveling operation without noticing this. In this case, if the operation is not restricted, the robot will turn and run at the normal operating speed according to the lever operation, which may pose a danger to the detected person, that is, a near-miss event may occur. The purpose is to record such situations as images and take subsequent measures.
  • FIG. 3 is a functional block diagram of the video recording device 23 and the vehicle body controller 21 according to the present invention.
  • the video recording device 23 is an ECU equipped with a CPU and a memory as described above, and includes functional units included in the CPU such as a communication unit 30, a recording management unit 31, a trigger determination unit 32, and a memory. It has a recording section 33.
  • the recording unit 33 includes a cache for temporarily recording (volatilely storing) video data and a storage for non-temporarily (non-volatilely) recording.
  • the communication unit 30 transmits and receives various data to and from the server 26 via the communication terminal 25 , and also transmits and receives various data to and from the vehicle body controller 21 via the in-vehicle network 24 .
  • the recording management unit 31 When the recording trigger is enabled, the recording management unit 31 records video data for a predetermined period of time before and after the recording trigger is enabled, among the video data temporarily recorded in the cache of the recording unit 33. A non-temporary recording process is performed in the storage within the same recording unit 33.
  • the trigger determination unit 32 determines whether the vehicle body controller 21 has enabled the recording trigger, and if the recording trigger has been enabled, outputs a command signal to the recording management unit 31 to start recording video data. .
  • the vehicle body controller 21 connected to the video recording device 23 via the in-vehicle network 24 includes a communication section 34, an operation control section 35, and a gate lock control section 36.
  • the communication unit 34 transmits and receives various data to and from the video recording device 23 via the in-vehicle network 24.
  • the operation control unit 35 acquires the amount of operation of the turning lever 27 and the amount of operation of the traveling lever 28 operated by the operator, and limits the turning operation and the traveling operation under conditions described below.
  • the gate lock control unit 36 acquires the locked/unlocked state of the gate lock device 29.
  • FIG. 4 is a diagram illustrating the conditions and recording time under which the video recording device 23 starts recording video data.
  • the operation by the operator becomes effective.
  • FIGS. 4(b), (c), (e), and (f) when the object detection sensor 19 detects an object, the turning operation and traveling operation by the operator are restricted (invalidated).
  • the recording trigger (detection) 37 becomes valid for t seconds. From among the video data temporarily recorded in the cache, video data from T1 seconds before to T2 seconds after the generation of the recording trigger (detection) 37 is non-temporarily (non-volatile) recorded.
  • the recording trigger (invalid operation) 38 becomes valid for t seconds.
  • video data is recorded non-temporarily (non-volatile) in the same way as when the recording trigger (detection) 37 is generated.
  • the recording trigger (detection) 37 becomes effective when the gate lock device 29 is in the released state and the object detection sensor 19 detects an object. Furthermore, after the recording trigger (detection) 37 is enabled, when the swing lever 27 or the travel lever 28 is operated while the gate lock device 29 is in the released state and the object detection sensor 19 has not detected an object, etc.
  • the recording trigger (invalid operation) 38 becomes valid. Until recording is completed due to activation of the recording trigger (detection) 37, even if the recording trigger (invalidation operation) 38 is activated, it is ignored in order to avoid duplication of recording processing.
  • FIG. 5 shows a flowchart when the video recording device 23 records video data.
  • step A2 When the vehicle body is powered on, the video recording device 23 is powered on in step A1, and preparations for recording are made (step A2).
  • step A3 the trigger determination unit 32 determines whether the recording trigger is valid. If the recording trigger is enabled, proceed to step A4; if not, proceed to step A7.
  • step A4 the recording management unit 31 generates video data from a preset time T1 seconds ago, starting from the time when the recording trigger became valid.
  • step A5 it is determined whether a preset time T2 seconds has elapsed starting from the time when the recording trigger became effective. If T2 seconds have elapsed, the process proceeds to step A6; if not, the process waits until T2 seconds have elapsed.
  • step A6 the video data acquired during steps A4 and A5 from T1 seconds before to T2 seconds after the recording trigger was activated is recorded in the storage of the recording unit 33, and the process proceeds to step A7.
  • step A7 if the power of the vehicle body is turned on, the process returns to A3, and the recording trigger validation determination and data generation/recording are repeated. If the power to the vehicle body is turned off, the process advances to step A8.
  • step A8 the video recording device 23 is powered off, and the recording flow is ended. At this time, the power of the vehicle is OFF, but the video recording device 23 is driven by a separate battery power source, and the video recording device 23 uses its own power source until the last data recording to the storage is completed. Do not turn off.
  • FIG. 6 shows a flowchart when the vehicle body controller 21 determines whether the recording trigger is valid or invalid. This control is executed in parallel with the recording flow shown in FIG.
  • step B1 the gate lock control unit 36 determines whether the gate lock device 29 is released, and if it is released, the process proceeds to step B2. If it is locked, it will remain on standby.
  • step B2 it is determined whether the object detection sensor 19 has detected an object or not based on whether the communication unit 34 has received a detection signal, and if it has detected an object, the process proceeds to step B3. If not detected, the process returns to step B1.
  • step B3 the communication unit 34 enables the recording trigger (detection) for t seconds and transmits a signal to the trigger determination unit 32 of the video recording device 23 to that effect. Further, the operation control unit 35 restricts (invalidates) the operator's turning operation and traveling operation via the in-vehicle network 24.
  • step B4 it is determined whether the object detection sensor 19 has not detected an object by the same process as step B2, and if it has not detected an object, the process proceeds to step B5. If it is not detected, proceed to step B6.
  • step B5 the gate lock control unit 36 determines whether the gate lock device 29 is locked, and if it is locked, the process proceeds to step B8. If it has been released, the process advances to step B6.
  • step B6 the operation control unit 35 determines whether or not a restricted (invalidated) turning or running operation has been performed, and if the operation has been performed, the process proceeds to step B7. If no operation has been performed, the process returns to step B4.
  • step B7 the recording trigger (disable operation) is enabled for t seconds, and the process returns to step B4.
  • step B8 the operation control unit 35 enables the operator's turning operation and traveling operation via the in-vehicle network 24. Thereafter, the operator can actually operate the construction machine by releasing the gate lock device 29. Thereafter, the flow from step B1 is repeated until the vehicle power is turned off.
  • the video recording device is a video recording device that records video data acquired by a camera attached to the body of a construction machine, and is a recording unit that records video data temporarily or non-temporarily.
  • a trigger determination unit that determines whether or not the recording trigger is enabled; and when it is determined that the recording trigger is enabled, the recording trigger is selected from among the video data temporarily recorded in the recording unit.
  • a recording management section that non-temporarily records video data for a predetermined period of time before and after activation in the recording section, and a trigger determination section that detects an object by an object detection sensor attached to the vehicle body. , it is determined that the recording trigger is enabled when a predetermined operation on the construction machine is restricted.
  • the trigger determination unit determines that the recording trigger is enabled when a predetermined operation is performed on the construction machine while the predetermined operation on the construction machine is restricted.
  • the object detection sensor detects a person in the operator's blind spot and the operation is disabled, and the operator performs a turning/travel operation without noticing this, the operation will be disabled. If the sensor continues to move, the sensor may turn/run and pose a danger to the detected person, in other words, there is a risk of a near-miss event occurring, so it is necessary to record such a situation as a video and take subsequent measures. It becomes possible.
  • the recording management section non-temporarily records operation information of the construction machine synchronized with the video data in the storage section along with the video data. This makes it possible to analyze the situation when a near-miss occurs in more detail.
  • the recording management section further non-temporarily records the position information of the construction machine at the time when the recording trigger is activated in the recording section. This makes it possible to associate the frequency of occurrence of near-miss incidents with the location of occurrence, allowing for flexible responses on-site.
  • the recording management unit further includes a communication unit, and the recording management unit further records information on the operation of the construction machine synchronized with the video data and the position information of the construction machine at the time when the recording trigger is activated.
  • the communication unit can upload the recorded video data, operating information, and location information to an external server via the Internet. This allows an operator in a remote location to monitor the occurrence of near misses in real time.
  • the present invention is not limited to the above embodiments, and various modifications are possible.
  • an example has been described in which the vehicle body operation is disabled when the object detection sensor detects an object, but the vehicle body operation may be slowed down by restricting the operation as described above.
  • the present invention is utilized at a site where construction machinery equipped with an object detection device is operated.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Component Parts Of Construction Machinery (AREA)
PCT/JP2023/011540 2022-03-28 2023-03-23 映像記録装置 Ceased WO2023190047A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP23780058.6A EP4451238A4 (en) 2022-03-28 2023-03-23 VIDEO RECORDING DEVICE
CN202380019029.1A CN118633113A (zh) 2022-03-28 2023-03-23 影像记录装置
KR1020247024829A KR102923589B1 (ko) 2022-03-28 2023-03-23 영상 기록 장치
US18/729,875 US20250119636A1 (en) 2022-03-28 2023-03-23 Video recording device
JP2024512277A JP7672575B2 (ja) 2022-03-28 2023-03-23 映像記録装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-051608 2022-03-28
JP2022051608 2022-03-28

Publications (1)

Publication Number Publication Date
WO2023190047A1 true WO2023190047A1 (ja) 2023-10-05

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PCT/JP2023/011540 Ceased WO2023190047A1 (ja) 2022-03-28 2023-03-23 映像記録装置

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US (1) US20250119636A1 (https=)
EP (1) EP4451238A4 (https=)
JP (1) JP7672575B2 (https=)
KR (1) KR102923589B1 (https=)
CN (1) CN118633113A (https=)
WO (1) WO2023190047A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4394780B2 (ja) 1999-10-08 2010-01-06 クラリオン株式会社 移動体情報記録装置
JP2020042537A (ja) * 2018-09-11 2020-03-19 矢崎エナジーシステム株式会社 作業車両の稼働管理システム
WO2021241033A1 (ja) * 2020-05-29 2021-12-02 日立建機株式会社 作業機械

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9332229B2 (en) 2010-06-18 2016-05-03 Hitachi Construction Machinery Co., Ltd. Surrounding area monitoring device for monitoring area around work machine
EP4012120A4 (en) * 2019-08-08 2022-11-09 Sumitomo Construction Machinery Co., Ltd. EXCAVATOR AND INFORMATION PROCESSING DEVICE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4394780B2 (ja) 1999-10-08 2010-01-06 クラリオン株式会社 移動体情報記録装置
JP2020042537A (ja) * 2018-09-11 2020-03-19 矢崎エナジーシステム株式会社 作業車両の稼働管理システム
WO2021241033A1 (ja) * 2020-05-29 2021-12-02 日立建機株式会社 作業機械

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4451238A4

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Publication number Publication date
EP4451238A4 (en) 2025-12-31
CN118633113A (zh) 2024-09-10
JPWO2023190047A1 (https=) 2023-10-05
JP7672575B2 (ja) 2025-05-07
EP4451238A1 (en) 2024-10-23
US20250119636A1 (en) 2025-04-10
KR102923589B1 (ko) 2026-02-05
KR20240130110A (ko) 2024-08-28

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