WO2023203706A1 - Dispositif de surveillance d'occupant et procédé de surveillance d'occupant - Google Patents

Dispositif de surveillance d'occupant et procédé de surveillance d'occupant Download PDF

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Publication number
WO2023203706A1
WO2023203706A1 PCT/JP2022/018347 JP2022018347W WO2023203706A1 WO 2023203706 A1 WO2023203706 A1 WO 2023203706A1 JP 2022018347 W JP2022018347 W JP 2022018347W WO 2023203706 A1 WO2023203706 A1 WO 2023203706A1
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WIPO (PCT)
Prior art keywords
unit
line
sight
section
occupant
Prior art date
Application number
PCT/JP2022/018347
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English (en)
Japanese (ja)
Inventor
雄城 煤孫
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三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2024515991A priority Critical patent/JPWO2023203706A1/ja
Priority to PCT/JP2022/018347 priority patent/WO2023203706A1/fr
Publication of WO2023203706A1 publication Critical patent/WO2023203706A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle

Definitions

  • the present disclosure relates to an occupant monitoring device and an occupant monitoring method.
  • Some vehicles are equipped with electronic mirror devices.
  • This electronic mirror device images the surroundings of a vehicle using an image pickup section outside the vehicle, and displays the captured image (including video) on a display section provided inside the vehicle interior. Therefore, the occupant of the vehicle can check the surroundings of the vehicle through the captured image displayed on the display unit.
  • Patent Document 1 A conventional electronic mirror device is disclosed in Patent Document 1, for example.
  • the display section of the electronic mirror device disclosed in Patent Document 1 is provided on the A-pillar in the vehicle interior.
  • This occupant monitoring device includes an in-vehicle imaging unit inside the vehicle interior for monitoring occupants.
  • the in-vehicle imaging unit of the occupant monitoring device is preferably placed at a position where it can accurately image the occupant, and is therefore often installed in an instrument panel that constitutes the front portion of the vehicle interior.
  • the instrument panel is placed at a lower position than the seated occupant, compared to when installed in a passenger car. For this reason, the in-vehicle imaging unit images the occupant from below, which may not be able to accurately image the occupant. Therefore, when installing an occupant monitoring device in a commercial vehicle, it is conceivable to install the in-vehicle imaging unit on the A-pillar, which is located at a higher position than the instrument panel.
  • the present disclosure has been made in order to solve the above-mentioned problems, and it is possible to provide an in-vehicle imaging unit at a position where accurate imaging can be performed while securing installation space for a display unit in the A-pillar.
  • the purpose is to provide a monitoring device.
  • the occupant monitoring device includes an in-vehicle imaging unit that photographs an area in a vehicle interior of a vehicle where at least the face of an occupant exists, and an illumination unit that irradiates light to an area in the vehicle interior where at least the face of the occupant exists.
  • the in-vehicle imaging section and the illumination section are attached to a display section provided on an A-pillar arranged inside the vehicle interior.
  • the in-vehicle imaging unit can be provided at a position where the in-vehicle image capturing unit can accurately capture an image while securing the installation space for the display unit.
  • FIG. 1 is a schematic perspective view showing the interior of a vehicle to which the occupant monitoring device according to Embodiment 1 is applied;
  • FIG. 1 is a block diagram showing the configuration of an occupant monitoring device according to Embodiment 1.
  • FIG. 3 is a diagram showing an example of how an in-vehicle imaging section and a lighting section are attached to a display section.
  • FIG. 3A is a diagram when the in-vehicle imaging section and illumination section are attached to the upper edge of the frame section.
  • FIG. 3B is a diagram when the in-vehicle imaging section and illumination section are attached to the lower edge of the frame section.
  • FIG. 3C is a diagram when the in-vehicle imaging unit and illumination unit are attached to the upper and lower edges of the frame, respectively.
  • FIG. 3A is a diagram when the in-vehicle imaging section and illumination section are attached to the upper edge of the frame section.
  • FIG. 3B is a diagram when the in-vehicle imaging section
  • 3D is a diagram when the mounting plate in which the in-vehicle imaging section and the lighting section are integrated is attached to the frame section.
  • 3 is a flowchart showing an occupant monitoring method according to the first embodiment.
  • 5A and 5B are diagrams illustrating an example of the hardware configuration of the supervisory control device according to the first embodiment.
  • Embodiment 1 An occupant monitoring device 20 according to Embodiment 1 will be described using FIGS. 1 to 5.
  • FIG. 1 is a schematic perspective view showing the interior of a vehicle 100 to which an occupant monitoring device 20 according to the first embodiment is applied.
  • FIG. 2 is a block diagram showing the configuration of the occupant monitoring device 20 according to the first embodiment.
  • a driver's seat 101, a windshield 102, a side door 103, an A-pillar 104, and an instrument panel 105 are provided on the front side of the interior of the vehicle 100, for example.
  • the vehicle 100 is assumed to be, for example, a commercial vehicle such as a truck or a bus.
  • Side door 103 is a right side door corresponding to driver's seat 101.
  • This side door 103 has a door glass 103a.
  • a pillar 104 is arranged between windshield 102 and side door 103.
  • This A-pillar 104 is formed to extend in the vertical direction of the vehicle 100.
  • the instrument panel 105 is arranged in front of the driver's seat 101 and below the windshield 102. This instrument panel 105 is a structure extending in the vehicle width direction.
  • the vehicle 100 is equipped with an electronic mirror device 10 and an occupant monitoring device 20.
  • the electronic mirror device 10 has an external imaging section 11 and a display section 12.
  • the external imaging unit 11 is provided outside the vehicle 100.
  • This external imaging unit 11 images an area including at least the rear of the vehicle 100.
  • the external imaging unit 11 photographs a range from the left side to the rear of the vehicle 100.
  • the external imaging unit 11 transmits a range from the right side of the vehicle 100 to the rear.
  • the outside-vehicle imaging section 11 outputs the captured image (including video) to the display section 12 .
  • the vehicle exterior imaging unit 11 is, for example, a camera.
  • the display unit 12 acquires the captured image output from the external imaging unit 11. Furthermore, the display unit 12 displays the acquired captured image. This display section 12 is provided on the A pillar 104. Therefore, the display unit 12 is installed at a position where it can be easily seen by the passenger (driver) seated in the driver's seat 101. As a result, the display unit 12 is used in place of a conventional side mirror or rearview mirror, and is effective when the vehicle 100 is parked side by side or rearward.
  • the display section 12 has a display surface 12a and a frame section 12b.
  • the display surface 12a is for displaying photographed images.
  • the frame portion 12b is formed into a rectangular frame shape and is arranged so as to entirely surround the outer peripheral edge of the display surface 12a. Note that the display content displayed on the display surface 12a may be not only the captured image captured by the external imaging unit 11 but also vehicle information regarding the vehicle 100.
  • the occupant monitoring device 20 includes an in-vehicle imaging section 21, a lighting section 22, and a monitoring control device 20A.
  • one in-vehicle imaging section 21 and two illumination sections 22 are integrally attached to the display section 12 provided on the A-pillar 104.
  • the number of lighting units 22 may be one or more.
  • the in-vehicle imaging unit 21 is arranged so as to face the driver's seat 101 from the display unit 12.
  • the in-vehicle imaging unit 21 images at least an area where the face of the occupant seated in the driver's seat 101 exists. Further, the in-vehicle imaging section 21 outputs the captured image (including video) to the line of sight detection section 24 .
  • the lighting section 22 is arranged so as to face the driver's seat 101 from the display section 12. This illumination unit 22 irradiates light to at least a range where the face of the passenger seated in the driver's seat 101 is present.
  • the occupant monitoring device 20 uses the illumination unit 22 to irradiate light onto the occupant seated in the driver's seat 101, and images the occupant through the in-vehicle imaging unit 21.
  • the in-vehicle imaging unit 21 is, for example, a camera.
  • the lighting section 22 is, for example, an LED (Light Emitting Diode).
  • the in-vehicle imaging section 21 and the lighting section 22 are electrically connected to the display section 12.
  • the in-vehicle imaging section 21 and the illumination section 22 have already started operating when an image is displayed on the display surface 12a of the display section 12.
  • the monitoring control device 20A includes an acquisition section 23, a line-of-sight detection section 24, a line-of-sight determination section 25, and a warning control section 26.
  • the acquisition unit 23 acquires the captured image output from the in-vehicle imaging unit 21. Further, the acquisition unit 23 outputs the acquired captured image to the line of sight detection unit 24.
  • the line of sight detection unit 24 acquires the captured image output from the acquisition unit 23. Furthermore, the line-of-sight detection unit 24 detects the line-of-sight direction of the passenger seated in the driver's seat 101 from the acquired captured image. Further, the line of sight detection section 24 outputs the detected direction of the passenger's line of sight to the line of sight determination section 25 .
  • the line of sight determination unit 25 acquires the direction of the passenger's line of sight output from the line of sight detection unit 24. Furthermore, the line of sight determination unit 25 determines whether the acquired direction of the passenger's line of sight is directed toward the display surface 12a of the display unit 12. At this time, when the passenger's line of sight satisfies a preset condition, the line of sight determination unit 25 determines that the passenger's line of sight is directed toward the display surface 12a.
  • the preset conditions include, for example, when the time period during which the occupant visually recognizes the display surface 12a is longer than a predetermined time, and when the frequency during which the occupant visually recognizes the display surface 12a is equal to or greater than a predetermined number of times. .
  • the time period during which the occupant views the display surface 12a and the frequency at which the occupant views the display surface 12a are detected by the above-mentioned line of sight detection unit 24 based on the acquired captured image.
  • the line of sight detection unit 24 outputs the detected lines to the line of sight determination unit 25.
  • the line of sight determination unit 25 determines that the direction of the passenger's line of sight is toward the display surface 12a, it outputs an operation signal for operating the warning control unit 26 to the warning control unit 26.
  • the line of sight determination unit 25 outputs a stop signal to the warning control unit 26 to stop the warning control unit 26.
  • the warning control unit 26 receives the operation signal or stop signal output from the line of sight determination unit 25. Further, when the warning control unit 26 receives the operation signal, it issues a warning to the occupant indicating that the occupant is not looking at the captured image displayed on the display surface 12a. Specifically, the warning control unit 26 operates at least one of the lighting unit 22 and the audio output unit 31. The warning control unit 26 causes the lighting unit 22 to blink at predetermined intervals. Further, the warning control unit 26 causes the audio output unit 31 to generate a sound toward the occupant. Therefore, the occupant comes to see the imaged information displayed on the display surface 12a.
  • the warning control unit 26 when the warning control unit 26 receives the stop signal, it does not issue a warning to the occupant. That is, the warning control unit 26 stops or cancels the operation of the lighting unit 22 and the audio output unit 31.
  • the audio output unit 31 is, for example, a speaker provided in the vehicle interior.
  • FIG. 3 is a diagram showing an example of how the in-vehicle imaging section 21 and the lighting section 22 are attached to the display section 12.
  • the in-vehicle imaging section 21 and the illumination section 22 are provided on the upper edge of the frame section 12b of the display section 12.
  • the in-vehicle imaging section 21 is arranged between the two illumination sections 22.
  • the in-vehicle imaging section 21 and the illumination section 22 are provided at the lower edge of the frame section 12b of the display section 12.
  • the in-vehicle imaging section 21 is arranged between the two illumination sections 22.
  • the in-vehicle imaging section 21 is provided on the upper edge of the frame section 12b of the display section 12.
  • the illumination section 22 is provided at the lower edge of the frame section 12b.
  • the in-vehicle imaging section 21 and the illumination section 22 are provided on the frame section 12b of the display section 12
  • the in-vehicle imaging section 21 and the illumination section 22 are located at the upper edge of the frame section 12b, It may be provided on any one of the lower edge, left edge, and right edge.
  • the in-vehicle imaging section 21 and the illumination section 22 are attached to a mounting plate 27.
  • the length of this mounting plate 27 is approximately the same as the length of the upper edge of the frame portion 12b of the display portion 12.
  • the in-vehicle imaging section 21 is arranged between the two illumination sections 22 in the length direction of the mounting plate 27.
  • the mounting plate 27 that integrates the in-vehicle imaging section 21 and the illumination section 22 is attached to the display section 12 along the upper edge of the frame section 12b.
  • the mounting plate 27 that integrates the in-vehicle imaging section 21 and the illumination section 22 may be provided with respect to the display section 12 along the lower edge, left edge, or right edge of the frame section 12b.
  • FIG. 4 is a flowchart showing the occupant monitoring method according to the first embodiment.
  • step ST11 the illumination unit 22 irradiates light to an area where at least the face of the occupant seated in the driver's seat 101 exists.
  • step ST12 the in-vehicle imaging unit 21 photographs an area where at least the face of the occupant seated in the driver's seat 101 exists.
  • step ST13 the acquisition unit 23 acquires the captured image captured by the in-vehicle imaging unit 21.
  • step ST14 the line of sight detection unit 24 detects the direction of the passenger's line of sight from the captured image captured by the in-vehicle imaging unit 21.
  • step ST15 the line of sight determination unit 25 determines whether the direction of the passenger's line of sight detected by the line of sight detection unit 24 is directed toward the display unit 12.
  • the passenger monitoring method returns to step ST14. If the line of sight determination unit 25 determines that the direction of the passenger's line of sight is not directed toward the display unit 12, the passenger monitoring method proceeds to step ST16.
  • step ST16 the warning control unit 26 controls at least one of the lighting unit 22 and the audio output unit 31 based on the determination result of the line of sight determination unit 25.
  • the occupant monitoring method then ends.
  • FIG. 5 is a diagram showing an example of the hardware configuration of the supervisory control device 20A according to the first embodiment.
  • the supervisory control device 20A is composed of a computer, and the computer includes a processor 51 and a memory 52.
  • the memory 52 stores a program for causing the computer to function as the acquisition section 23 , the line-of-sight detection section 24 , the line-of-sight determination section 25 , and the warning control section 26 .
  • the processor 51 reads and executes the program stored in the memory 52, the functions of the acquisition section 23, the line-of-sight detection section 24, the line-of-sight determination section 25, and the warning control section 26 are realized.
  • the monitoring control device 20A may include a processing circuit 53.
  • the acquisition unit 23, the line-of-sight detection unit 24, the line-of-sight determination unit 25, and the warning control unit 26 may be implemented.
  • the supervisory control device 20A may include a processor 51, a memory 52, and a processing circuit 53 (not shown).
  • a processor 51 part of the functions of the acquisition unit 23, line-of-sight detection unit 24, line-of-sight determination unit 25, and warning control unit 26 are realized by the processor 51 and memory 52, and the remaining functions are realized by the processing circuit 53. It may be something.
  • the processor 51 includes, for example, at least one of a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), a microprocessor, a microcontroller, or a DSP (Digital Signal Processor). This is what was used.
  • a CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • DSP Digital Signal Processor
  • the memory 52 uses at least one of a semiconductor memory and a magnetic disk, for example. More specifically, the memory 52 includes RAM (Random Access Memory), ROM (Read Only Memory), flash memory, and EPROM (Erasable Programmable Read Only Memory). ), EEPROM (Electrically Erasable Programmable Read-Only Memory), SSD (Solid At least one of a state drive (state drive) and a hard disk drive (HDD) is used.
  • RAM Random Access Memory
  • ROM Read Only Memory
  • flash memory and EPROM (Erasable Programmable Read Only Memory).
  • EEPROM Electrical Erasable Programmable Read-Only Memory
  • SSD Solid At least one of a state drive (state drive) and a hard disk drive (HDD) is used.
  • the processing circuit 53 is, for example, an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field-Programmable). Gate Array), SoC (System-on-a-Chip) or System LSI (Large-Scale Integration) At least one of these is used.
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field-Programmable
  • Gate Array Gate Array
  • SoC System-on-a-Chip
  • System LSI Large-Scale Integration
  • the occupant monitoring device 20 includes the in-vehicle imaging section 21 that photographs the range where at least the face of the occupant exists in the cabin of the vehicle 100, and the in-vehicle imaging unit 21 that photographs the area where at least the face of the occupant exists in the cabin of the vehicle 100;
  • the in-vehicle imaging section 21 and the illumination section 22 are attached to the display section 12 provided on the A-pillar 104 arranged inside the vehicle interior. Therefore, the occupant monitoring device 20 can secure the installation space for the display unit 12 in the A-pillar 104 and provide the in-vehicle imaging unit 21 at a position where it can accurately capture images.
  • the in-vehicle imaging section 21 and the lighting section 22 are attached to the frame section 12b of the display section 12. Therefore, the occupant monitoring device 20 can save space for the in-vehicle imaging section 21 and the lighting section 22.
  • the occupant monitoring device 20 includes a mounting plate 27 on which an in-vehicle imaging section 21 and a lighting section 22 are provided, and the mounting plate 27 is attached to the frame section 12b with the in-vehicle imaging section 21 and lighting section 22 integrated. It will be done.
  • the occupant monitoring device 20 can improve the installation workability of the in-vehicle imaging section 21 and the lighting section 22.
  • the occupant monitoring device 20 includes an acquisition unit 23 that acquires an image captured by the in-vehicle imaging unit 21, a line-of-sight detection unit 24 that detects the direction of the occupant's line of sight from the captured image acquired by the acquisition unit 23, A line-of-sight determination unit 25 determines whether or not the direction of the passenger's line of sight detected by the detection unit 24 is directed toward the display unit 12; 31. Therefore, the occupant monitoring device 20 can issue a warning to the occupant indicating that the occupant is not looking at the captured image displayed on the display surface 12a.
  • the line-of-sight determination unit 25 determines whether the line-of-sight of the occupant is directed toward the display unit 12 when the line-of-sight of the occupant detected by the line-of-sight detection unit 24 satisfies a preset condition. It is determined that there is. Therefore, the occupant monitoring device 20 can appropriately perform the determination by the line of sight determining section 25.
  • the warning control unit 26 causes the lighting unit 22 to blink. Therefore, the occupant monitoring device 20 can reliably warn the occupant.
  • the warning control unit 26 causes the audio output unit 31 to generate a sound. Therefore, the occupant monitoring device 20 can reliably warn the occupant.
  • any component of the embodiments can be modified or any component of the embodiments can be omitted.
  • an in-vehicle imaging unit that photographs an area in the vehicle interior where at least the face of an occupant is present; an illumination unit that irradiates light to an area where at least the face of the occupant is present in the vehicle interior;
  • the occupant monitoring device wherein the in-vehicle imaging section and the illumination section are attached to a display section provided on an A-pillar arranged inside the vehicle interior.
  • the occupant monitoring device according to appendix 1 wherein the in-vehicle imaging section and the lighting section are attached to a frame section of the display section.
  • FIG. 3 (Additional note 3) comprising a mounting plate on which the in-vehicle imaging unit and the lighting unit are provided; The occupant monitoring device according to appendix 1, wherein the mounting plate is attached to a frame portion of the display unit with the in-vehicle imaging unit and the lighting unit integrated.
  • an acquisition unit that acquires a captured image captured by the in-vehicle imaging unit; a line of sight detection unit that detects the direction of the passenger's line of sight from the captured image acquired by the acquisition unit; a line-of-sight determination unit that determines whether the direction of the passenger's line of sight detected by the line-of-sight detection unit is directed toward the display unit; and a warning control section that controls at least one of the illumination section and the audio output section based on the determination result of the line of sight determination section.
  • passenger monitoring device that acquires a captured image captured by the in-vehicle imaging unit
  • a line of sight detection unit that detects the direction of the passenger's line of sight from the captured image acquired by the acquisition unit
  • a line-of-sight determination unit that determines whether the direction of the passenger's line of sight detected by the line-of-sight detection unit is directed toward the display unit
  • a warning control section that controls at least one of the illumination section and the audio output section based on the determination result of the
  • the line of sight determination unit is Supplementary note 4, characterized in that when the passenger's line of sight detected by the line of sight detection unit satisfies a preset condition, it is determined that the passenger's line of sight is directed toward the display unit.
  • Occupant monitoring device (Appendix 6) Occupant monitoring according to appendices 4 and 5, wherein when the line of sight determination unit determines that the direction of the occupant's line of sight is toward the display unit, the warning control unit causes the lighting unit to blink.
  • Device (Appendix 7) Supplementary notes 4 to 6, characterized in that when the line of sight determination unit determines that the passenger's line of sight is directed toward the display unit, the warning control unit generates a sound from the audio output unit.
  • an in-vehicle imaging unit that photographs an area in the vehicle interior where at least the face of an occupant is present; an illumination unit that irradiates light to an area where at least the face of the occupant is present in the vehicle interior;
  • the in-vehicle imaging unit and the illumination unit are included in an occupant monitoring device attached to a display unit provided on an A-pillar arranged in the vehicle interior, an acquisition unit acquires a captured image captured by the in-vehicle imaging unit, a line of sight detection unit detects the direction of the passenger's line of sight from the captured image acquired by the acquisition unit, a line-of-sight determination unit determines whether the direction of the passenger's line of sight detected by the line-of-sight detection unit is directed toward the display unit;
  • An occupant monitoring method characterized in that a warning control section controls at least one of the lighting section and the audio output section based on the determination result of the line of sight determination section.
  • the occupant monitoring device By attaching the in-vehicle imaging unit and the lighting unit to the display unit provided in the A-pillar, the occupant monitoring device according to the present disclosure secures installation space for the display unit in the A-pillar, and captures images of the in-vehicle imaging unit with high accuracy. It can be installed at any possible location, and is suitable for use in occupant monitoring devices, etc.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

Un dispositif de surveillance d'occupant (20) comprend : une unité d'imagerie d'intérieur de véhicule (21) qui image une plage dans laquelle existe au moins le visage d'un occupant à l'intérieur d'un véhicule (100) ; et une unité d'éclairage (22) qui projette de la lumière dans la plage dans laquelle existe au moins le visage de l'occupant à l'intérieur du véhicule. L'unité d'imagerie d'intérieur de véhicule (21) et l'unité d'éclairage (22) sont fixées à une unité d'affichage (12) disposée sur un montant avant (104) disposé à l'intérieur du véhicule.
PCT/JP2022/018347 2022-04-21 2022-04-21 Dispositif de surveillance d'occupant et procédé de surveillance d'occupant WO2023203706A1 (fr)

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JP2024515991A JPWO2023203706A1 (fr) 2022-04-21 2022-04-21
PCT/JP2022/018347 WO2023203706A1 (fr) 2022-04-21 2022-04-21 Dispositif de surveillance d'occupant et procédé de surveillance d'occupant

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Application Number Priority Date Filing Date Title
PCT/JP2022/018347 WO2023203706A1 (fr) 2022-04-21 2022-04-21 Dispositif de surveillance d'occupant et procédé de surveillance d'occupant

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007316036A (ja) * 2006-05-29 2007-12-06 Honda Motor Co Ltd 車両の乗員検知装置
WO2008041497A1 (fr) * 2006-09-29 2008-04-10 Aisin Seiki Kabushiki Kaisha Dispositif d'alarme pour un véhicule et procédé d'alarme pour un véhicule
JP2010253987A (ja) * 2009-04-21 2010-11-11 Yazaki Corp 車載用撮影ユニット
JP2019014360A (ja) * 2017-07-06 2019-01-31 マツダ株式会社 乗員撮影装置
US20210174103A1 (en) * 2019-04-12 2021-06-10 Stoneridge Electronics, AB Mobile device usage monitoring for commercial vehicle fleet management

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007316036A (ja) * 2006-05-29 2007-12-06 Honda Motor Co Ltd 車両の乗員検知装置
WO2008041497A1 (fr) * 2006-09-29 2008-04-10 Aisin Seiki Kabushiki Kaisha Dispositif d'alarme pour un véhicule et procédé d'alarme pour un véhicule
JP2010253987A (ja) * 2009-04-21 2010-11-11 Yazaki Corp 車載用撮影ユニット
JP2019014360A (ja) * 2017-07-06 2019-01-31 マツダ株式会社 乗員撮影装置
US20210174103A1 (en) * 2019-04-12 2021-06-10 Stoneridge Electronics, AB Mobile device usage monitoring for commercial vehicle fleet management

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