WO2023047704A1 - Information presentation device and method - Google Patents

Information presentation device and method 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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vehicle
camera
running state
information
unit
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PCT/JP2022/021586
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French (fr)
Japanese (ja)
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健 森林
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株式会社Ｊｖｃケンウッド
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Publication of WO2023047704A1 publication Critical patent/WO2023047704A1/en

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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.

Abstract

Provided are an information presentation device and method that are capable of determining the travel state of a vehicle and appropriately providing information necessary for a driver on the basis of the travel state. An information presentation device (11) according to the present invention comprises a photographing unit (111) that photographs a rear-view image of a vehicle from the vehicle, a determination unit (112) that determines the travel state of the vehicle, a presentation unit (113) that presents information for a driver driving the vehicle, and a control unit (114) that determines that the presentation unit (113) presents the rear-view image when the determination unit (112) has determined that the vehicle is traveling as the travel state.

Description

情報提示装置、および方法Information presentation device and method
　本発明は、情報提示装置、および方法に関し、特に、車両の走行状態を判定し、走行状態に基づいてドライバに必要な情報を適切に提供することが可能な情報提示装置、および方法に関する。 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.
　近年、主に自動車事故発生時の映像（画像）などの状況記録を目的として、ドライブレコーダが普及してきている。その中には、車室内のルームミラーを兼用するものがあり、ミラー型ドライブレコーダと呼ばれている。情報提示装置の１つであり、車載機器でもあるドライブレコーダは、車両の走行中は過去記録映像画面の表示の禁止などの様々な規制（制限）を受ける。よって、ミラー型ドライブレコーダは、車両の走行中においては車両のドライバが後方を確認できるようにするため、ルームミラーに現在の車両後方の画像（映像）を表示するように制御することが好ましい。後付けのミラー型ドライブレコーダでは、ドライブレコーダ本体をルームミラーに装着し、車両の外部ＡＣＣ（アクセサリ）電源ソケットへ接続し、前方または後方を撮像するカメラを設置するという、ユーザにとって容易な取付が大きなメリットとなっている。しかしながら、車両の走行状態を検知する場合には、車両から車速パルスを取得するための配線を新たに行う必要があり、これがユーザにとって容易ではなかった。これにより、後付けのミラー型ドライブレコーダは、走行状態を検知することが難しかった。 In recent years, drive recorders have become popular, mainly for the purpose of recording situations such as video (images) when car accidents occur. Among them, there is one that also serves as a rearview mirror in the vehicle compartment, and is called a mirror-type drive recorder. 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.
　特許文献１の００３６段落には「ＥＣＵ（Electric Control Unit）は、車両に設置された各種センサから車両の走行情報を受信する。ＥＣＵは、車両の各種センサからデータを受け取って演算を通じて各種駆動装置およびその他の装置などを制御して車両の走行状況に対して最適化され、安定した出力と燃費を引き出す助けをする。」と記載されている。また、特許文献１の００３７段落には「計器盤は、ＥＣＵから信号の伝送を受けて車両の走行状態に関連した情報をクラスターディスプレイに表示する」と記載されている。特許文献１には、車両からの撮像画像に基づいて車両の走行状態を判定し、当該走行状態に基づいてドライバのための情報を提供することは記載されていない。 In paragraph 0036 of Patent Document 1, "ECU (Electric Control Unit) receives vehicle driving information from various sensors installed in the vehicle. 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." Further, 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.
　特許文献２の００２３段落には「走行状態検出手段としての車両データ受信部は、後述するＥＣＵから車両情報、特に車両が後進しているか否かを示す情報を取得し、制御部に出力する。」と記載されている。また、特許文献２の００２９段落には「ＥＣＵ（Electronic Control Unit）は、車両において、車速やエンジンの回転数、車両の前進または後進など各種の車両情報を収集して、エンジンなどの各部の制御を行う制御装置である。」と記載されている。特許文献２には、車両からの撮像画像に基づいて車両の走行状態を判定し、当該走行状態に基づいてドライバのための情報を提供することは記載されていない。 Paragraph 0023 of 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. In addition, in paragraph 0029 of Patent Document 2, "ECU (Electronic Control Unit) collects various vehicle information such as vehicle speed, engine rotation speed, forward or backward movement of the vehicle, and controls each part such as the engine. It is a control device that performs Patent Document 2 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.
特開２０２０－１７０５０５号公報JP 2020-170505 A 特開２０１０－０８９６７１号公報JP 2010-089671 A
　上述のとおり、情報提示装置の１つであるドライブレコーダ、特に、後付けのドライブレコーダでは、車両の走行状態を検知することが難しいという課題があった。 As described above, 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.
　本発明は、車両の走行状態を判定し、走行状態に基づいてドライバに必要な情報を適切に提供することが可能な情報提示装置、および方法を提供することを目的とする。 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.
　そこで、本実施形態は、
　車両から前記車両の後方画像を撮像する撮像部と、
　前記車両の走行状態を判定する判定部と、
　前記車両を操作するドライバのための情報を提示する提示部と、
　前記判定部が、前記車両が前記走行状態であると判定すると前記提示部に前記後方画像を提示する制御部と、
　を備える情報提示装置を提供する。 Therefore, in this embodiment,
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;
To provide an information presentation device comprising
　また、本実施形態は、
　車両から前記車両の後方画像を撮像することと、
　前記車両の走行状態を判定することと、
　前記車両を操作するドライバのための情報を提示することと、
　前記車両が前記走行状態であると判定されたとき前記後方画像を提示することを決定することと、
　を備える方法を提供する。 Also, in this embodiment,
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
　本実施形態によれば、車両の走行状態を判定し、走行状態に基づいてドライバに必要な情報を適切に提供することが可能な情報提示装置、および方法を提供することができる。 According to the present embodiment, it is possible to provide 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.
実施の形態１に係るドライブレコーダを例示するブロック図である。1 is a block diagram illustrating a drive recorder according to Embodiment 1; FIG. 実施の形態１に係るドライブレコーダを例示する模式図である。1 is a schematic diagram illustrating a drive recorder according to Embodiment 1; FIG. 実施の形態１に係るドライブレコーダの動作を例示するフローチャートである。4 is a flowchart illustrating the operation of the drive recorder according to Embodiment 1; 実施の形態２に係るドライブレコーダを例示する模式図である。FIG. 10 is a schematic diagram illustrating a drive recorder according to Embodiment 2; FIG.
　［実施の形態１］
　実施の形態においては、情報提示装置の１つとしてドライブレコーダを例に挙げて説明するが、これには限定されない。実施の形態は、ドライブレコーダ以外の情報提示装置にも適用可能である。 [Embodiment 1]
In the embodiments, 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.
　＜構成＞
　図１は、実施の形態１に係るドライブレコーダを例示するブロック図である。
　図２は、実施の形態１に係るドライブレコーダを例示する模式図である。 <Configuration>
FIG. 1 is a block diagram illustrating a drive recorder according to Embodiment 1. FIG.
FIG. 2 is a schematic diagram illustrating a drive recorder according to Embodiment 1. FIG.
　図１及び図２に示すように、実施の形態１に係るドライブレコーダ１１は、撮像部１１１とドライブレコーダ本体１１ａと提示部１１３とを備える。ドライブレコーダ本体１１ａは、判定部１１２と制御部１１４とを有する。撮像部１１１は、少なくともカメラ１１１ａとカメラ１１１ｂとを有する。ドライブレコーダ１１は、ドライブレコーダ本体１１ａを、例えば、車室内のルームミラーに装着して使用する。提示部をミラー提示部と称することもある。 As shown in FIGS. 1 and 2, the drive recorder 11 according to Embodiment 1 includes an imaging section 111, a drive recorder main body 11a, and a presentation section 113. FIG. 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.
　撮像部１１１は、車両から、車両の外部を撮像する少なくとも２台以上のカメラを有する。撮像部１１１のカメラ１１１ａは、車両の前方を撮像する。撮像部１１１のカメラ１１１ｂは、車両の後方を撮像する。 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.
　なお、ドライブレコーダ１１は、撮像部１１１が撮像したカメラ画像を保存する保存部（図示しない）を備えてもよい。 Note that the drive recorder 11 may include a storage unit (not shown) that stores camera images captured by the imaging unit 111 .
　ドライブレコーダ１１は、カメラ１１１ａだけでなく、カメラ１１１ｂが撮像した画像を使用することにより、撮像環境に影響されず、走行状態をより正確に判定（検知）することができる。例えば、太陽光によって逆光となり、その逆光の影響でカメラ１１１ａが撮像したカメラ画像に悪影響を与えることがある。また、例えば、夜間に別の車両のヘッドライトによって逆光となり、その逆光の影響でカメラ１１１ｂが撮像したカメラ画像に悪影響を与えることがある。実施の形態１によれば、このような場合でも、逆光となっていない方のカメラが撮像したカメラ画像に基づいて車両の走行状態を判定することができる。すなわち、カメラ１１１ａのカメラ画像が逆光により車両の走行状態を判定することができない場合でも、カメラ１１１ｂのカメラ画像に基づいて車両の走行状態を判定することができる。 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. For example, sunlight may cause backlight, and the backlight may adversely affect the camera image captured by the camera 111a. Further, for example, the headlights of another vehicle may cause backlight at night, and the backlight may adversely affect the camera image captured by the camera 111b. According to Embodiment 1, even in such a case, 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.
　また、例えば、カメラ１１１ａとカメラ１１１ｂの両方のカメラ画像が使用可能な場合、両方のカメラ画像に基づいて総合判定を行うことで、より正確な走行状態を判定することができる。より具体的には、先ず、カメラ１１１ａで走行状態の判定を行う。カメラ１１１ａで走行状態の判定ができない場合、カメラ１１１ｂで走行状態の判定を行う。また、カメラ１１１ｂで走行状態の判定ができない場合、カメラ１１１ａで走行状態の判定を行ってもよい。 Also, for example, when camera images of both the camera 111a and the camera 111b are available, it is possible to more accurately determine the driving state by performing comprehensive determination based on both camera images. More specifically, first, the camera 111a determines the running state. When the camera 111a cannot determine 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.
　判定部１１２は、撮像部１１１が撮像したカメラ画像に基づいて車両の走行状態を判定する。すなわち、判定部１１２は、撮像部１１１が撮像したカメラ画像（映像）を解析して、走行状態であるか否かを判定する。具体的には、判定部１１２は、連続する異なる時刻に撮像されたカメラ画像を比較し、それらの画像の間に差異が有るか無いかに基づいて車両の走行状態を判定する。判定部１１２は、時刻ｔ１に撮像されたカメラ画像と、時刻ｔ２に撮像されたカメラ画像と、の間に差異が有る場合、走行状態を「走行」と判定する。また、判定部１１２は、時刻ｔ１に撮像されたカメラ画像と、時刻ｔ２に撮像されたカメラ画像と、の間に差異が無い場合、走行状態を「停止」と判定する。なお、判定部１１２は、車両の走行状態を判定する際、車両の前進および／または後進に関係なく、連続する異なる時刻のカメラ画像に差異が有る場合（車両が動いている場合）、走行状態を走行と判定する。これにより、車両が動いている場合には、確実に鏡による反射表示（ミラー映像）を提示部１１３に表示させることができる。また、撮像部１１１のカメラが車両の内部を撮像した場合でも、そのカメラが車窓から車両の外部を撮像することがある。そのような場合、判定部１１２は、車窓から撮像されたカメラ画像であって、車外の様子を撮像した当該カメラ画像に基づいて車両の走行状態を判定してもよい。 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. If there is a 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 "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 . Moreover, even when the camera of the imaging unit 111 captures an image of the interior of the vehicle, the camera may capture an image of the exterior of the vehicle through the car window. In such a case, 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.
　ドライブレコーダ本体１１ａの片面に提示部１１３が設けられる。提示部１１３は、車両を操作するドライバのための情報を提示する。すなわち、提示部１１３は、車両のドライバにとって必要な情報を提示する。ドライバのための情報は、車両の走行状態が走行の場合にはカメラ１１１ｂが撮像した現在のカメラ画像であり、車両の走行状態が停止の場合にはカメラ１１１ｂが撮像した過去のカメラ画像の再生画像、または、設定情報である。設定情報は、例えば、各種機能のオンオフ設定や時計表示のオンオフや日時／時刻設定等の情報である。 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. An image or setting information. The setting information is, for example, information such as on/off setting of various functions, on/off of clock display, and date/time setting.
　なお、提示部１１３には、カメラ１１１ｂが撮像した現在のカメラ画像の代わりに、鏡による反射表示を表示してもよい。このように、提示部１１３にカメラ１１１ｂが撮像した現在のカメラ画像が表示され、もしくは、鏡による反射表示が表示された場合には、提示部１１３は、車室内に設けられたルームミラーとして使用することができる。また、車両の走行状態が停止の場合であっても、提示部１１３に過去のカメラ画像や設定情報を提示しないように制御した場合には、現在のカメラ１１１ｂのカメラ画面を表示してもよい。 Note that 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. .
　提示部１１３は、例えば、鏡面反射ミラー（光学ミラー）、電子ミラー、または、両ミラーに対応してもよい。提示部１１３が両ミラーに対応する場合の詳細を以下に示す。 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.
　提示部１１３は、ミラー（鏡）部分と電子ミラー部分とを有する。ミラー部分は、鏡による反射により表示される部分である。ドライブレコーダ本体１１ａの内部にはＬＣＤ（Liquid Crystal Display）や有機ＥＬ（Electro Luminescence）などの表示デバイス搭載されている。電子ミラー部分は、ミラー表面を透過して、当該表示デバイスによって表示される部分である。 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.
　制御部１１４は、走行状態に基づいて提示部１１３に提示するドライバのための情報を決定する。具体的には、制御部１１４は、提示部１１３を光学ミラーに設定するための光学ミラーモード、もしくは、電子ミラーに設定するための電子ミラーモードに設定する。提示部１１３は、光学ミラーモードに設定された場合には鏡による反射表示を表示する。提示部１１３は、電子ミラーモードに設定された場合には撮像部１１１で撮像した現在のカメラ画像（リアルタイム映像）、録画したカメラ画像、または、設定用のＧＵＩ（Graphical User Interface）画像などを表示する。なお、この例では、画像には静止画の他、動画も含まれるものとする。 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. When the electronic 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.
　実施の形態１では、ドライブレコーダ１１は、撮像部１１１が撮像したカメラ画像（映像）を解析して、走行状態であるか否かを判定する。これにより、車両から車速パルスを取得することで走行状態を判定する場合と比べて、容易に走行状態を判定（検知）することができる。また、ドライブレコーダ１１は、走行状態が走行の場合には、提示部１１３を電子バックミラーモードもしくは光学ミラーモードに設定する。そして、提示部１１３には、カメラ１１１ｂが撮像した現在のカメラ画像が表示され、もしくは、鏡による反射表示が表示される。 In Embodiment 1, 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.
　その結果、実施の形態１では、車両の走行状態を判定し、走行状態に基づいてドライバに必要な情報を適切に提供することが可能な情報提示装置、および方法を提供することができる。 As a result, in 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.
　また、実施の形態１では、走行状態の判定をする際、カメラ１１１ａとカメラ１１１ｂのうち、より好ましい判定が可能な方のカメラを用いて判定する。これにより、例えば、逆光時などで一方のカメラだけでは判定が困難な場合でも、走行状態を適切に判定することができる。 In addition, in the first embodiment, when determining the running state, the camera, which is capable of more preferable determination, is used between the camera 111a and the camera 111b. As a result, even when it is difficult to make a determination with only one camera due to backlight, for example, it is possible to appropriately determine the running state.
　また、実施の形態１では、車両の走行状態が走行の場合にはカメラ１１１ｂが撮像した現在のカメラ画像を提示部１１３に表示する。これにより、車両の走行中にドライバの視認性が低下することは無い。 Further, in Embodiment 1, 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.
　また、実施の形態１では、車両の走行状態を判定するために、例えば、ＧＮＳＳ（Global Navigation Satellite System / 全球測位衛星システム）受信機等の機器を使用しない。これにより、ＧＮＳＳ受信機の分だけコストを低減することができる。 Also, in 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.
　＜動作＞
　図３は、実施の形態に係るドライブレコーダの動作を例示するフローチャートである。 <Action>
FIG. 3 is a flow chart illustrating the operation of the drive recorder according to the embodiment.
　図３に示すように、ドライブレコーダ１１の通電開始（電源オン）のため、車両の外部ＡＣＣ（アクセサリ）電源ソケットへ接続して電源をオンにする（ステップＳ１０１）。 As shown in FIG. 3, in order to start energizing (power on) the drive recorder 11, the power is turned on by connecting to the external ACC (accessory) power socket of the vehicle (step S101).
　ステップＳ１０１では、通電開始しただけで車両は動いていないので、車両の走行状態は「走行」に該当しない。よって、ドライブレコーダ１１は、車両の走行状態を示す走行状態フラグを「未走行」へセットする（ステップＳ１０２）。「未走行」を「停止」と称することもある。 　In 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".
　ドライブレコーダ１１の提示部１１３は、後述するステップＳ１０９において、状態フラグが「走行」の場合、所定のリアミラー表示をする（ステップＳ１０３）。すなわち、制御部１１４は、走行状態が走行と判定された場合、提示部１１３にカメラ１１１ｂが撮像した現在のカメラ画像を表示することを決定する。これにより、提示部１１３には車両の後方の状態が表示される。なお、所定のリアミラー表示とは、カメラ１１１ｂが撮像した現在（リアルタイム）のカメラ画像、もしくは、光学ミラーモードでの鏡による反射表示のことを示す。 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 . Note that 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.
　ドライブレコーダ１１は、自身を起動し、車両の前方及び後方の映像の録画を開始、もしくは、録画を継続する（ステップＳ１０４）。車両の前方はカメラ１１１ａによって録画され、車両の後方はカメラ１１１ｂによって録画される。 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.
　ドライブレコーダ１１は、走行状態の判定機能の設定をオン（ОＮ）にした場合（ステップＳ１０５：右）、判定部１１２は、撮像部１１１が撮像したカメラ画像から走行状態を判定する（ステップＳ１０６）。なお、判定部１１２は、走行状態の判定を行うと共に、前進走行、後進走行、及び走行速度の検知を行ってもよい。 When the drive recorder 11 turns on (ON) the setting of the driving state determination function (step S105: right), 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.
　ドライブレコーダ１１の判定部１１２は、「走行」判定の場合、走行状態フラグを走行へセットし（ステップＳ１０７）、後述のステップＳ１０９に移動する。 In the case of "running" determination, 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.
　ドライブレコーダ１１の判定部１１２は、「未走行」判定の場合、走行状態フラグを未走行へセットし（ステップＳ１０８）、後述のステップＳ１０９に移動する。 In the case of the "not running" determination, 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.
　ドライブレコーダ１１は、走行状態の判定機能の設定をオフ（ОＦＦ）にした場合（ステップＳ１０５：下）、提示部１１３に撮像部１１１が過去に録画した画像（再生画像）または設定画面を提示する（ステップＳ１０９）。設定画面は、設定情報を提示する画面であって、鏡の反射による表示や現在のカメラ画像以外の表示に切替えるものである。再生画像は、例えば、事故の内容を確認するために、録画した事故発生時の画像を再生するものである。事故発生時の画像として、カメラ１１１ａが録画したカメラ画像を表示してもよい。再生画像は、時間ごとに異なる複数のリストの中から選択されてもよい。設定情報は、例えば、各種機能のオンオフ設定や時計表示のオンオフや日時／時刻設定等の情報である。 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.
　ステップＳ１０９において、走行状態フラグが「走行」の場合、ステップＳ１０３に戻る。 In step S109, if the running state flag is "running", the process returns to step S103.
　ステップＳ１０９において、走行状態フラグが「未走行」の場合、リアミラー表示を停止し、撮像部１１１が録画した再生画像または設定画面を提示する（ステップＳ１１０）。すなわち、制御部１１４は、走行状態が停止（未走行）と判定された場合、提示部１１３にカメラ１１１ｂが撮像した過去のカメラ画像の再生画像または設定情報の画面を提示することを決定してもよい。 In 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.
　ドライブレコーダ１１は、ステップＳ１１０の後、走行状態の判定機能の設定をオン（ОＮ）にした場合（ステップＳ１１１：右）、判定部１１２は、撮像部１１１が撮像したカメラ画像から走行状態を判定する（ステップＳ１１２）。 After 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).
　ドライブレコーダ１１の判定部１１２は、「走行」判定の場合、走行状態フラグを走行へセットし（ステップＳ１１３）、ステップＳ１０３に移動する。 In the case of "running" determination, the determining unit 112 of the drive recorder 11 sets the running state flag to "running" (step S113), and moves to step S103.
　ドライブレコーダ１１の判定部１１２は、「未走行」判定の場合、走行状態フラグを未走行へセットし（ステップＳ１１４）、後述のステップＳ１１５に移動する。 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.
　ドライブレコーダ１１は、走行状態の判定機能の設定をオフ（ОＦＦ）にした場合（ステップＳ１１１：下）、撮像部１１１が録画した画像の再生を終了すると共に、設定画面の手動操作を停止する（ステップＳ１１５）。 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).
　ステップＳ１１５において、撮像部１１１が録画した画像の再生を終了すると共に、設定画面の手動操作を停止する場合（ステップＳ１１５：Ｙｅｓ）、ステップＳ１０３に戻る。 In 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.
　ステップＳ１１５において、撮像部１１１が録画した画像の再生を終了すると共に、設定画面の手動操作を停止しない場合（ステップＳ１１５：Ｎо）、ステップＳ１１０に戻る。 In 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.
　ステップＳ１０１からステップＳ１１５に示すように、車両の走行状態を判定（検知）することで、提示部１１３の表示状態を自動で制御し切替えることができる。 By determining (detecting) the running state of the vehicle as shown in steps S101 to S115, the display state of the presentation unit 113 can be automatically controlled and switched.
　＜特徴＞
　実施の形態１では、撮像部１１１が撮像したカメラ画像に基づいて車両の走行状態を判定する。このため、実施の形態１では、走行状態を判定するために、車両の走行信号「車速パルス」や、シフトレバーの位置「Ｒ（リバース）」検知をすることは必要ない。これにより、車両の専用線と接続する必要もなく、また、ダッシュボードやインパネインストルメントパネル（Instrument Panel）を分解し、配線を行うことも必要ないので、ユーザにとって容易にドライブレコーダのサービスを享受できる。 <Features>
In Embodiment 1, 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.
　また、実施の形態１では、ＧＮＳＳ受信機を使用して車両の走行状態を判定する必要が無い。このため、ＧＮＳＳ受信機の分だけコストを低減することができる。また、トンネル内、屋根付き駐車場、高架下を走行中でも、車両の走行状態を正確に判定することができる。 Also, in 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.
　［実施の形態２］
　図４は、実施の形態２に係るドライブレコーダを例示する模式図である。 [Embodiment 2]
FIG. 4 is a schematic diagram illustrating a drive recorder according to Embodiment 2. FIG.
　図４に示すように、実施の形態２に係るドライブレコーダ２１は、実施の形態１に係るドライブレコーダ１１と比べて、ＧＮＳＳ（Global Navigation Satellite System / 全球測位衛星システム）受信機２１１が追加されている点が異なる。すなわち、実施の形態２に係るドライブレコーダ２１は、車両に搭載されたＧＮＳＳ受信機２１１を備える。ＧＮＳＳ受信機２１１は、人工衛星から受信したデータに基づいて車両の位置情報を求める。 As shown in FIG. 4, 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.
　判定部１１２は、撮像部１１１が撮像したカメラ画像に代えて、ＧＮＳＳ受信機２１１が求めた車両の位置情報に基づいて車両の走行状態を判定する。すなわち、実施の形態１では判定部１１２がカメラ画像を用いて走行状態を判定したが、実施の形態２では、判定部１１２が、ＧＮＳＳ受信機２１１が求めた位置情報に基づいて走行状態を判定する。 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.
　実施の形態２では、撮像部１１１が故障して走行状態を判定することが難しい場合や、逆光等で撮像部１１１による車両の走行状態を判定することが難しい場合でも、ＧＮＳＳ受信機２１１が求めた車両の位置情報に基づいて車両の走行状態を判定することができる。 In the second embodiment, even when it is difficult to determine the running state of the vehicle due to a failure of the imaging unit 111 or when it is difficult to determine the running state of the vehicle by the imaging unit 111 due to backlight or the like, the GNSS receiver 211 can detect the The running state of the vehicle can be determined based on the vehicle position information obtained.
　尚、上記処理のうちの一部または全部は、コンピュータプログラムによって実行されてもよい。上述したプログラムは、様々なタイプの非一時的なコンピュータ可読媒体（ｎｏｎ－ｔｒａｎｓｉｔｏｒｙ　ｃｏｍｐｕｔｅｒ　ｒｅａｄａｂｌｅ　ｍｅｄｉｕｍ）を用いて格納され、コンピュータに供給することができる。非一時的なコンピュータ可読媒体は、様々なタイプの実体のある記録媒体（ｔａｎｇｉｂｌｅ　ｓｔｏｒａｇｅ　ｍｅｄｉｕｍ）を含む。非一時的なコンピュータ可読媒体の例は、磁気記録媒体（例えばフレキシブルディスク、磁気テープ、ハードディスクドライブ）、光磁気記録媒体（例えば光磁気ディスク）、ＣＤ－ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、ＣＤ－Ｒ、ＣＤ－Ｒ／Ｗ、半導体メモリ（例えば、マスクＲＯＭ、ＰＲＯＭ（Ｐｒｏｇｒａｍｍａｂｌｅ　ＲＯＭ)、ＥＰＲＯＭ（Ｅｒａｓａｂｌｅ　ＰＲＯＭ)、フラッシュＲＯＭ、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ））を含む。また、プログラムは、様々なタイプの一時的なコンピュータ可読媒体（ｔｒａｎｓｉｔｏｒｙ　ｃｏｍｐｕｔｅｒ　ｒｅａｄａｂｌｅ　ｍｅｄｉｕｍ)によってコンピュータに供給されてもよい。一時的なコンピュータ可読媒体の例は、電気信号、光信号、および電磁波を含む。一時的なコンピュータ可読媒体は、電線および光ファイバ等の有線通信路、または無線通信路を介して、プログラムをコンピュータに供給できる。 A part or all of the above processes may be executed by a computer program. The programs described above can be stored and provided to computers using various types of non-transitory computer readable media. 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)). 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.
　以上、発明を実施の形態に基づき具体的に説明したが、本発明は上記実施の形態に限られたものではなく、その要旨を逸脱しない範囲で種々変更可能であることは言うまでもない。 Although the invention has been specifically described above based on the embodiments, it goes without saying that the invention is not limited to the above embodiments, and that various modifications can be made without departing from the gist of the invention.
　この出願は、２０２１年９月２７日に出願された日本出願特願２０２１－１５６７２４を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2021-156724 filed on September 27, 2021, and the entire disclosure thereof is incorporated herein.
　本発明は、情報提示装置、および方法に適用可能であり、産業上の利用可能性を有する。 The present invention is applicable to information presentation devices and methods, and has industrial applicability.
　１１、２１…ドライブレコーダ、情報提示装置
　１１ａ…ドライブレコーダ本体
　１１１…撮像部
　１１１ａ…カメラ
　１１１ｂ…カメラ
　１１２…判定部
　１１３…提示部
　１１４…制御部
　２１１…ＧＮＳＳ受信機
　ｔ１、ｔ２…時刻 DESCRIPTION OF SYMBOLS 11, 21... Drive recorder, information presentation apparatus 11a... Drive recorder main body 111... Imaging part 111a... Camera 111b... Camera 112... Judgment part 113... Presentation part 114... Control part 211... GNSS receiver t1, t2... Time

Claims (5)

  1. 　車両から前記車両の後方画像を撮像する撮像部と、
    　前記車両の走行状態を判定する判定部と、
    　前記車両を操作するドライバのための情報を提示する提示部と、
    　前記判定部が、前記車両が前記走行状態であると判定すると前記提示部に前記後方画像を提示する制御部と、
    　を備える情報提示装置。     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;
    Information presentation device.
  2. 　前記制御部は、前記走行状態に基づいて前記提示部に提示する前記ドライバのための情報を決定する、
    　請求項１に記載の情報提示装置。     The control unit determines information for the driver to be presented to the presentation unit based on the driving state.
    The information presentation device according to claim 1.
  3. 　前記撮像部は、少なくとも前記車両の前方を撮像するカメラと前記車両の後方を撮像するカメラとを有する、
    　請求項２に記載の情報提示装置。     The imaging unit has at least a camera for imaging the front of the vehicle and a camera for imaging the rear of the vehicle,
    3. The information presentation device according to claim 2.
  4. 　前記車両に搭載されたＧＮＳＳ（Global Navigation Satellite System）受信機をさらに備え、
    　前記ＧＮＳＳ受信機は、人工衛星から受信したデータに基づいて前記車両の位置情報を求め、
    　前記判定部は、前記撮像部が撮像したカメラ画像に代えて、前記ＧＮＳＳ受信機が求めた前記位置情報に基づいて前記車両の前記走行状態を判定する、
    　請求項１から３のいずれか１つに記載の情報提示装置。     Further comprising a GNSS (Global Navigation Satellite System) receiver mounted on the vehicle,
    The GNSS receiver obtains position information of the vehicle based on data received from satellites;
    The determination unit determines the running state of the vehicle based on the position information obtained by the GNSS receiver instead of the camera image captured by the imaging unit.
    The information presentation device according to any one of claims 1 to 3.
  5. 　車両から前記車両の後方画像を撮像することと、
    　前記車両の走行状態を判定することと、
    　前記車両を操作するドライバのための情報を提示することと、
    　前記車両が前記走行状態であると判定されたとき前記後方画像を提示することを決定することと、
    　を備える方法。     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;
    How to prepare.
PCT/JP2022/021586 2021-09-27 2022-05-26 Information presentation device and method WO2023047704A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020067402A (en) * 2018-10-25 2020-04-30 株式会社デンソー Sensor calibration method and sensor calibration apparatus
WO2020250977A1 (en) * 2019-06-14 2020-12-17 株式会社 村上開明堂 Vehicle-mounted electronic mirror provided with image output

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020067402A (en) * 2018-10-25 2020-04-30 株式会社デンソー Sensor calibration method and sensor calibration apparatus
WO2020250977A1 (en) * 2019-06-14 2020-12-17 株式会社 村上開明堂 Vehicle-mounted electronic mirror provided with image output

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