WO2023047704A1 - Dispositif et procédé de présentation d'informations - Google Patents

Dispositif et procédé de présentation d'informations Download PDF

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Publication number
WO2023047704A1
WO2023047704A1 PCT/JP2022/021586 JP2022021586W WO2023047704A1 WO 2023047704 A1 WO2023047704 A1 WO 2023047704A1 JP 2022021586 W JP2022021586 W JP 2022021586W WO 2023047704 A1 WO2023047704 A1 WO 2023047704A1
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WIPO (PCT)
Prior art keywords
vehicle
camera
running state
information
unit
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Application number
PCT/JP2022/021586
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English (en)
Japanese (ja)
Inventor
健 森林
Original Assignee
株式会社Ｊｖｃケンウッド
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Filing date
Publication date
Application filed by 株式会社Ｊｖｃケンウッド filed Critical 株式会社Ｊｖｃケンウッド
Publication of WO2023047704A1 publication Critical patent/WO2023047704A1/fr

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles

Definitions

  • the present invention relates to an information presentation device and method, and more particularly to an information presentation device and method capable of determining the running state of a vehicle and appropriately providing necessary information to the driver based on the running state.
  • drive recorders have become popular, mainly for the purpose of recording situations such as video (images) when car accidents occur.
  • a drive recorder which is one of the information presentation devices and also an in-vehicle device, is subject to various regulations (restrictions) such as prohibition of displaying a past recorded video screen while the vehicle is running. Therefore, the mirror-type drive recorder is preferably controlled to display the current image (video) of the rear of the vehicle on the rearview mirror so that the driver of the vehicle can check the rear while the vehicle is running.
  • the retrofit mirror-type drive recorder is easy for the user to install: the drive recorder body is attached to the rearview mirror, connected to the vehicle's external ACC (accessory) power socket, and a camera that captures the front or rear is installed. It is an advantage. However, when detecting the running state of the vehicle, it is necessary to newly install wiring for acquiring the vehicle speed pulse from the vehicle, which is not easy for the user. This makes it difficult for the retrofitted mirror-type drive recorder to detect the running state.
  • ECU Electronic Control Unit
  • ECU receives data from various sensors of the vehicle and calculates various driving devices and other devices are optimized for the vehicle's driving conditions, helping to achieve stable output and fuel efficiency.
  • paragraph 0037 of Patent Document 1 describes that "the instrument panel receives a signal transmitted from the ECU and displays information related to the running state of the vehicle on the cluster display.”
  • Patent Literature 1 does not describe determining the running state of the vehicle based on the captured image from the vehicle and providing information for the driver based on the running state.
  • Patent Document 2 states, "A vehicle data receiving section as a driving state detecting means acquires vehicle information, particularly information indicating whether or not the vehicle is moving backward, from an ECU described later, and outputs the acquired information to the control section. ” is stated.
  • ECU Electronic Control Unit
  • the drive recorder which is one of the information presentation devices, especially the retrofit drive recorder, has the problem that it is difficult to detect the running state of the vehicle.
  • An object of the present invention is to provide an information presentation device and method capable of judging the running state of a vehicle and appropriately providing necessary information to the driver based on the running state.
  • an imaging unit that captures an image behind the vehicle from the vehicle; a determination unit that determines the running state of the vehicle; a presentation unit that presents information for a driver who operates the vehicle; a control unit that presents the rearward image to the presentation unit when the determination unit determines that the vehicle is in the running state;
  • Capturing a rearward image of the vehicle from the vehicle; determining a running state of the vehicle; presenting information for a driver operating the vehicle; determining to present the rear image when the vehicle is determined to be in the running state; provides a method of providing
  • an information presentation device and method capable of determining the driving state of a vehicle and appropriately providing necessary information to the driver based on the driving state.
  • FIG. 1 is a block diagram illustrating a drive recorder according to Embodiment 1;
  • FIG. 1 is a schematic diagram illustrating a drive recorder according to Embodiment 1;
  • FIG. 4 is a flowchart illustrating the operation of the drive recorder according to Embodiment 1;
  • FIG. 10 is a schematic diagram illustrating a drive recorder according to Embodiment 2;
  • FIG. 1 is a block diagram illustrating a drive recorder according to Embodiment 1;
  • FIG. 1 is a schematic diagram illustrating a drive recorder according to Embodiment 1;
  • FIG. 4 is a flowchart illustrating the operation of the drive recorder according to Embodiment 1;
  • FIG. 10 is a schematic diagram illustrating a drive recorder according to Embodiment 2;
  • a drive recorder will be described as an example of an information presentation device, but the present invention is not limited to this. Embodiments are also applicable to information presenting devices other than drive recorders.
  • FIG. 1 is a block diagram illustrating a drive recorder according to Embodiment 1.
  • FIG. 2 is a schematic diagram illustrating a drive recorder according to Embodiment 1.
  • FIG. 1 is a block diagram illustrating a drive recorder according to Embodiment 1.
  • FIG. 2 is a schematic diagram illustrating a drive recorder according to Embodiment 1.
  • the drive recorder 11 includes an imaging section 111, a drive recorder main body 11a, and a presentation section 113.
  • the drive recorder main body 11 a has a determination section 112 and a control section 114 .
  • the imaging unit 111 has at least a camera 111a and a camera 111b.
  • the drive recorder 11 is used by attaching the drive recorder main body 11a to, for example, a room mirror in the vehicle.
  • the presentation unit may also be referred to as a mirror presentation unit.
  • the imaging unit 111 has at least two or more cameras that capture images of the outside of the vehicle.
  • the camera 111a of the imaging unit 111 images the front of the vehicle.
  • the camera 111b of the imaging unit 111 images the rear of the vehicle.
  • the drive recorder 11 may include a storage unit (not shown) that stores camera images captured by the imaging unit 111 .
  • the drive recorder 11 uses images captured by the camera 111b as well as the camera 111a, so that the driving state can be determined (detected) more accurately without being affected by the imaging environment.
  • sunlight may cause backlight, and the backlight may adversely affect the camera image captured by the camera 111a.
  • the headlights of another vehicle may cause backlight at night, and the backlight may adversely affect the camera image captured by the camera 111b.
  • the running state of the vehicle can be determined based on the camera image captured by the non-backlit camera. That is, even if the camera image of the camera 111a cannot determine the running state of the vehicle due to backlight, the running state of the vehicle can be determined based on the camera image of the camera 111b.
  • the camera 111a determines the running state.
  • the camera 111b determines the running state. If the camera 111b cannot determine the running state, the camera 111a may determine the running state.
  • the determination unit 112 determines the running state of the vehicle based on the camera image captured by the imaging unit 111 . That is, the determination unit 112 analyzes the camera image (video) captured by the imaging unit 111 and determines whether or not the vehicle is in a running state. Specifically, the determination unit 112 compares camera images captured at successive different times, and determines the running state of the vehicle based on whether or not there is a difference between the images.
  • determination unit 112 determines that the running state is "running.” If there is no difference between the camera image captured at time t1 and the camera image captured at time t2, determination unit 112 determines that the running state is "stopped.” When judging the running state of the vehicle, the determination unit 112 determines whether the vehicle is moving forward and/or backward, and if there is a difference between camera images taken at successive different times (when the vehicle is moving), the running state is determined to be running. Thereby, when the vehicle is moving, the reflection display (mirror image) by the mirror can be reliably displayed on the presentation unit 113 .
  • the determining unit 112 may determine the running state of the vehicle based on a camera image taken from the car window, which captures the state outside the vehicle.
  • a presentation unit 113 is provided on one side of the drive recorder main body 11a.
  • the presentation unit 113 presents information for the driver who operates the vehicle. That is, the presentation unit 113 presents information necessary for the driver of the vehicle.
  • the information for the driver is the current camera image captured by the camera 111b when the vehicle is running, and the past camera image captured by the camera 111b is reproduced when the vehicle is stopped.
  • the setting information is, for example, information such as on/off setting of various functions, on/off of clock display, and date/time setting.
  • the presentation unit 113 may display a reflection display by a mirror instead of the current camera image captured by the camera 111b. In this way, when the current camera image captured by the camera 111b is displayed on the presentation unit 113, or the reflection display by the mirror is displayed, the presentation unit 113 is used as a rearview mirror provided in the vehicle interior. can do. Further, even when the vehicle is in a stopped state, if the presentation unit 113 is controlled so as not to present past camera images and setting information, the current camera screen of the camera 111b may be displayed. .
  • the presentation unit 113 may correspond to, for example, a specular reflection mirror (optical mirror), an electronic mirror, or both mirrors. The details of the case where the presentation unit 113 corresponds to both mirrors are shown below.
  • the presentation unit 113 has a mirror portion and an electronic mirror portion.
  • the mirror portion is the portion displayed by reflection from the mirror.
  • a display device such as an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence) is mounted inside the drive recorder body 11a.
  • the electronic mirror portion is the portion that is transmitted through the mirror surface and displayed by the display device.
  • the control unit 114 determines information for the driver to be presented to the presentation unit 113 based on the driving state. Specifically, the control unit 114 sets the presentation unit 113 to an optical mirror mode for setting the display unit 113 as an optical mirror, or an electronic mirror mode for setting the display unit 113 as an electronic mirror.
  • the presentation unit 113 displays reflection display by a mirror when the optical mirror mode is set.
  • the presentation unit 113 displays a current camera image (real-time video) captured by the imaging unit 111, a recorded camera image, or a GUI (Graphical User Interface) image for setting. do. Note that, in this example, images include not only still images but also moving images.
  • the drive recorder 11 analyzes the camera image (video) captured by the imaging unit 111 and determines whether or not the vehicle is in a running state. As a result, the running state can be determined (detected) more easily than when determining the running state by acquiring the vehicle speed pulse from the vehicle. Further, when the driving state is driving, the drive recorder 11 sets the presentation unit 113 to the electronic rearview mirror mode or the optical mirror mode. The presenting camera image captured by the camera 111b is displayed on the presentation unit 113, or a reflection display by a mirror is displayed.
  • Embodiment 1 it is possible to provide an information presentation device and method that can determine the running state of the vehicle and appropriately provide necessary information to the driver based on the running state.
  • the camera which is capable of more preferable determination, is used between the camera 111a and the camera 111b.
  • the camera which is capable of more preferable determination, is used between the camera 111a and the camera 111b.
  • the present camera image captured by the camera 111b is displayed on the presentation unit 113 when the running state of the vehicle is running. As a result, the driver's visibility is not degraded while the vehicle is running.
  • Embodiment 1 equipment such as a GNSS (Global Navigation Satellite System) receiver is not used to determine the running state of the vehicle. Thereby, the cost can be reduced by the amount of the GNSS receiver.
  • GNSS Global Navigation Satellite System
  • FIG. 3 is a flow chart illustrating the operation of the drive recorder according to the embodiment.
  • the power is turned on by connecting to the external ACC (accessory) power socket of the vehicle (step S101).
  • step S101 the vehicle is not moving just because the energization has started, so the running state of the vehicle does not correspond to "running". Therefore, the drive recorder 11 sets the running state flag indicating the running state of the vehicle to "non-running" (step S102). "Not running” is sometimes referred to as "stopped”.
  • the presentation unit 113 of the drive recorder 11 displays a predetermined rear mirror display when the state flag is "running" in step S109, which will be described later (step S103). That is, when the running state is determined to be running, the control unit 114 determines to display the current camera image captured by the camera 111b on the presentation unit 113 . Thereby, the state behind the vehicle is displayed on the presentation unit 113 .
  • the predetermined rear-mirror display indicates the current (real-time) camera image captured by the camera 111b, or the reflection display by the mirror in the optical mirror mode.
  • the drive recorder 11 activates itself and starts or continues recording of images in front of and behind the vehicle (step S104).
  • the front of the vehicle is recorded by the camera 111a, and the rear of the vehicle is recorded by the camera 111b.
  • the determination unit 112 determines the driving state from the camera image captured by the imaging unit 111 (step S106). . Note that the determination unit 112 may determine the running state and also detect the forward running, the backward running, and the running speed.
  • the determination unit 112 of the drive recorder 11 sets the running state flag to "running” (step S107), and moves to step S109, which will be described later.
  • the determining unit 112 of the drive recorder 11 sets the running state flag to "not running” (step S108), and moves to step S109, which will be described later.
  • the drive recorder 11 When the setting of the driving state determination function is turned off (OFF) (step S105: bottom), the drive recorder 11 presents an image (playback image) recorded by the imaging unit 111 in the past or a setting screen to the presentation unit 113. (Step S109).
  • the setting screen is a screen for presenting setting information, and is used to switch to a display based on mirror reflection or a display other than the current camera image.
  • the reproduced image is, for example, reproduced from the recorded image at the time of the accident in order to confirm the details of the accident.
  • a camera image recorded by the camera 111a may be displayed as the image when the accident occurred.
  • a playback image may be selected from a plurality of lists that are different for each time.
  • the setting information is, for example, information such as on/off setting of various functions, on/off of clock display, and date/time setting.
  • step S109 if the running state flag is "running", the process returns to step S103.
  • step S109 if the running state flag is "not running”, the rear mirror display is stopped, and the reproduced image recorded by the imaging unit 111 or the setting screen is presented (step S110). That is, when it is determined that the running state is stopped (not running), the control unit 114 determines to present the reproduction image of the past camera image captured by the camera 111b or the setting information screen to the presentation unit 113. good too.
  • step S110 when the drive recorder 11 turns on (ON) the setting of the driving state determination function (step S111: right), the determination unit 112 determines the driving state from the camera image captured by the imaging unit 111. (step S112).
  • the determining unit 112 of the drive recorder 11 sets the running state flag to "running” (step S113), and moves to step S103.
  • step S114 If the determination unit 112 of the drive recorder 11 determines that the vehicle is "not running”, it sets the running state flag to "not running” (step S114), and proceeds to step S115, which will be described later.
  • step S111 When the setting of the driving state determination function is turned off (OFF) (step S111: bottom), the drive recorder 11 ends the reproduction of the image recorded by the imaging unit 111 and stops the manual operation of the setting screen (step S115).
  • step S115 when the reproduction of the image recorded by the imaging unit 111 is finished and the manual operation of the setting screen is stopped (step S115: Yes), the process returns to step S103.
  • step S115 when the reproduction of the image recorded by the imaging unit 111 is finished and the manual operation of the setting screen is not stopped (step S115: NO), the process returns to step S110.
  • the display state of the presentation unit 113 can be automatically controlled and switched.
  • the running state of the vehicle is determined based on the camera image captured by the imaging unit 111 . Therefore, in the first embodiment, it is not necessary to detect the running signal "vehicle speed pulse" of the vehicle or the position "R (reverse)" of the shift lever in order to determine the running state. As a result, there is no need to connect to the vehicle's dedicated line, and there is no need to disassemble and wire the dashboard or instrument panel, making it easier for users to enjoy the drive recorder service. can.
  • Embodiment 1 there is no need to use the GNSS receiver to determine the running state of the vehicle. Therefore, the cost can be reduced by the GNSS receiver. In addition, the running state of the vehicle can be accurately determined even when the vehicle is running in a tunnel, in a covered parking lot, or under an overpass.
  • FIG. 4 is a schematic diagram illustrating a drive recorder according to Embodiment 2.
  • FIG. 4 is a schematic diagram illustrating a drive recorder according to Embodiment 2.
  • the drive recorder 21 according to Embodiment 2 is different from the drive recorder 11 according to Embodiment 1 in that a GNSS (Global Navigation Satellite System) receiver 211 is added. There is a difference. That is, the drive recorder 21 according to Embodiment 2 includes a GNSS receiver 211 mounted on the vehicle. The GNSS receiver 211 obtains vehicle position information based on data received from satellites.
  • GNSS Global Navigation Satellite System
  • the determination unit 112 determines the running state of the vehicle based on the vehicle position information obtained by the GNSS receiver 211 instead of the camera image captured by the imaging unit 111 . That is, in the first embodiment, the determination unit 112 determines the running state using the camera image, but in the second embodiment, the determination unit 112 determines the running state based on the position information obtained by the GNSS receiver 211. do.
  • the GNSS receiver 211 can detect the The running state of the vehicle can be determined based on the vehicle position information obtained.
  • Non-transitory computer-readable media include various types of tangible storage media. Examples of non-transitory computer-readable media include magnetic recording media (eg, flexible discs, magnetic tapes, hard disk drives), magneto-optical recording media (eg, magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, Includes CD-R/W, semiconductor memory (eg, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)).
  • magnetic recording media eg, flexible discs, magnetic tapes, hard disk drives
  • magneto-optical recording media eg, magneto-optical discs
  • CD-ROMs Read Only Memory
  • CD-Rs Includes CD-R/W
  • semiconductor memory eg, mask ROM, PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (Random Access Memory)
  • the program may also be supplied to the computer on various types of transitory computer readable medium.
  • Examples of transitory computer-readable media include electrical signals, optical signals, and electromagnetic waves.
  • Transitory computer-readable media can deliver the program to the computer through wired channels, such as wires and optical fibers, or wireless channels.
  • the present invention is applicable to information presentation devices and methods, and has industrial applicability.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)

Abstract

L'invention concerne un dispositif et un procédé de présentation d'informations pouvant déterminer l'état de déplacement d'un véhicule et de fournir de manière appropriée des informations nécessaires à un conducteur sur la base de l'état de déplacement. Un dispositif de présentation d'informations (11) selon la présente invention comprend une unité de photographie (111) qui photographie une image de vue arrière d'un véhicule depuis le véhicule, une unité de détermination (112) qui détermine l'état de déplacement du véhicule, une unité de présentation (113) qui présente des informations à un conducteur conduisant le véhicule, ainsi qu'une unité de commande (114) qui indique à l'unité de présentation (113) de présenter l'image de vue arrière lorsque l'unité de détermination (112) détermine, en tant qu'état de déplacement, que le véhicule se déplace.
PCT/JP2022/021586 2021-09-27 2022-05-26 Dispositif et procédé de présentation d'informations WO2023047704A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-156724 2021-09-27
JP2021156724 2021-09-27

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WO2023047704A1 true WO2023047704A1 (fr) 2023-03-30

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020067402A (ja) * 2018-10-25 2020-04-30 株式会社デンソー センサ校正方法、及びセンサ校正装置
WO2020250977A1 (fr) * 2019-06-14 2020-12-17 株式会社 村上開明堂 Miroir électronique monté sur véhicule pourvu d'une sortie d'image

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020067402A (ja) * 2018-10-25 2020-04-30 株式会社デンソー センサ校正方法、及びセンサ校正装置
WO2020250977A1 (fr) * 2019-06-14 2020-12-17 株式会社 村上開明堂 Miroir électronique monté sur véhicule pourvu d'une sortie d'image

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