CN113165573A - Vehicle communication system - Google Patents

Vehicle communication system Download PDF

Info

Publication number
CN113165573A
CN113165573A CN201980080275.1A CN201980080275A CN113165573A CN 113165573 A CN113165573 A CN 113165573A CN 201980080275 A CN201980080275 A CN 201980080275A CN 113165573 A CN113165573 A CN 113165573A
Authority
CN
China
Prior art keywords
vehicle
information
pedestrian
unit
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201980080275.1A
Other languages
Chinese (zh)
Inventor
伊藤義朗
金子进
杉本笃
竹田新
原田知明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Manufacturing Co Ltd
Original Assignee
Koito Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koito Manufacturing Co Ltd filed Critical Koito Manufacturing Co Ltd
Publication of CN113165573A publication Critical patent/CN113165573A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/547—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for issuing requests to other traffic participants; for confirming to other traffic participants they can proceed, e.g. they can overtake
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/24—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead
    • B60Q1/249—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments for lighting other areas than only the way ahead for illuminating the field of view of a sensor or camera
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/507—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking specific to autonomous vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/503—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text
    • B60Q1/5035—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text electronic displays
    • B60Q1/5037—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking using luminous text or symbol displays in or on the vehicle, e.g. static text electronic displays the display content changing automatically, e.g. depending on traffic situation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/50—Projected symbol or information, e.g. onto the road or car body

Abstract

A vehicle communication system (2) according to the present invention includes: a detection unit (300) that can detect a target person around the vehicle; an estimation unit (403) that determines a target person who is most likely to enter an estimated course of the vehicle, based on course information acquired from the vehicle control unit (3); and an information transmission unit (401) that transmits the first information so that the identified target person can be identified by at least one of light, heat, sound, and vibration.

Description

Vehicle communication system
Technical Field
The present invention relates to a vehicle communication system.
Background
Currently, research on an automatic driving technique of an automobile is actively conducted in each country, and legislation for enabling a vehicle (hereinafter, "vehicle" means an automobile) to travel on a highway in an automatic driving mode is being studied in each country. Here, in the automatic driving mode, the vehicle system automatically controls the running of the vehicle. Specifically, in the automatic driving mode, the vehicle system automatically performs at least one of steering control (control of the traveling direction of the vehicle), braking control, and acceleration control (control of braking, acceleration, and deceleration of the vehicle) based on various information obtained from a camera, a sensor, a radar, and the like. On the other hand, in the manual driving mode described below, the travel of the vehicle is controlled by the driver, like many vehicles of the conventional type. Specifically, in the manual driving mode, the travel of the vehicle is controlled in accordance with the operation (steering operation, braking operation, acceleration operation) by the driver, and the vehicle system does not automatically perform steering control, braking control, and acceleration control. In addition, the driving mode of the vehicle is not a concept existing only in a part of the vehicles, but a concept existing in all vehicles including existing types of vehicles having no automatic driving function, and is classified according to a vehicle control method and the like, for example.
For example, if a pedestrian who wants to cross a crosswalk is present in front of an autonomous vehicle, the pedestrian may feel uneasy whether or not the pedestrian can cross the crosswalk if the pedestrian does not know that the autonomous vehicle has recognized the pedestrian. Further, a driver of an emergency vehicle (an ambulance, a fire truck, a patrol car, or the like) traveling behind the autonomous vehicle is not aware that the autonomous vehicle has recognized the emergency vehicle, and the driver feels uneasy as to whether the autonomous vehicle can be passed over.
On the other hand, patent document 1 discloses an automatic follow-up running system in which a following vehicle automatically follows a preceding vehicle. In this automatic follow-up running system, the preceding vehicle and the following vehicle are provided with illumination devices, respectively, and the illumination device of the preceding vehicle displays character information for preventing another vehicle from being inserted between the preceding vehicle and the following vehicle, and the illumination device of the following vehicle displays character information indicating the meaning of automatic follow-up running.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 9-277887
Disclosure of Invention
Technical problem to be solved by the invention
However, in patent document 1, since all vehicles and persons located near the vehicle are communicated, communication with a specific partner is not possible.
The purpose of the present invention is to provide a vehicle communication system capable of communicating with a specific partner located in the periphery of a vehicle.
Means for solving the problems
In order to achieve the above object, a vehicle communication system according to one aspect of the present invention is characterized in that,
a detection unit capable of detecting a target person around a host vehicle;
an estimation unit that determines a target person who is most likely to enter an estimated course of the host vehicle, based on the course information acquired from the vehicle control unit; and
an information transmitting unit that transmits first information so that the identified target person can be identified by at least one of light, heat, sound, and vibration.
According to the vehicle communication system of the above configuration, after identifying the target person who is most likely to enter the expected route of the own vehicle, the information transmission unit transmits the first information so that the identified target person can recognize the first information.
Thus, according to the above configuration, it is possible to provide a vehicle communication system capable of communicating with a specific partner located in the periphery of a vehicle.
In the vehicle communication system according to one aspect for achieving the above object,
the information transmitting unit conveys second information different from the first information to the subject person.
According to the vehicle communication system of the above configuration, the specific target person can recognize information such as a message transmitted from the vehicle by recognizing the second information.
In the vehicle communication system according to one aspect for achieving the above object,
the information transmitting unit transmits first information by emitting light to the subject person.
According to the vehicle communication system of the above configuration, since light is emitted to the subject person, the subject person can more reliably recognize the first information.
In the vehicle communication system according to one aspect for achieving the above object,
the information transmitting unit intermittently irradiates light to the subject person.
According to the vehicle communication system of the above configuration, the energy of the light output from the information transmitting unit and the energy of the light emitted to the subject person can be limited. Therefore, the light consumption energy can be reduced, and the eyes of the subject person are not excessively burdened.
In the vehicle communication system according to one aspect for achieving the above object,
the information transmitting unit emits light in a direction in which the subject person is looking based on information including the direction in which the subject person is looking, which is acquired from the vehicle control unit.
According to the vehicle communication system of the above configuration, the information transmitting unit emits light in a direction in which the subject person is looking. Therefore, the subject person can easily visually confirm the emitted light.
In the vehicle communication system according to one aspect for achieving the above object,
the information transmitting section is capable of communicating with a communication terminal that can be carried by the subject person,
the information transmitting unit is configured to cause the communication terminal to generate at least one of sound and vibration.
According to the vehicular communication system of the above configuration, the information transmitting unit causes the communication terminal carried by the subject person to generate at least one of sound and vibration. Therefore, communication with a specific partner is possible.
In the vehicle communication system according to one aspect for achieving the above object,
the information transmitting unit includes a directional speaker for transmitting a sound to the subject person.
According to the vehicle communication system of the above configuration, since the information transmitting unit includes the directional speaker, information can be transmitted to a specific target person by voice or the like. Therefore, communication with a specific partner is possible.
Effects of the invention
According to the present invention, it is possible to provide a vehicle communication system capable of communicating with a specific partner located around a vehicle.
Drawings
Fig. 1A is a plan view of a vehicle equipped with the vehicle communication system according to the present embodiment.
FIG. 1B is a side view of the vehicle shown in FIG. 1A.
Fig. 2 is a block diagram of the vehicle communication system according to the present embodiment.
Fig. 3 is a vertical sectional view of the road surface depiction lamp.
Fig. 4 is a side view showing the structure of a light source unit of the pavement marker lamp.
Fig. 5 is a perspective view showing a structure of a light distribution portion of the road surface drawing lamp.
Fig. 6 is a flowchart showing a process until predetermined information is transmitted to an object.
Fig. 7 is a schematic diagram for explaining a case where predetermined information is transmitted to an object that becomes an obstacle when the vehicle turns left.
Fig. 8 is a schematic diagram for explaining a case where predetermined information is transmitted to an object that becomes an obstacle when the vehicle turns left.
Fig. 9 is a schematic diagram for explaining a case where predetermined information is transmitted to an object that becomes an obstacle when the vehicle turns left.
Fig. 10 is a schematic diagram for explaining a case where predetermined information is transmitted to an object that becomes an obstacle when the vehicle turns left.
Detailed Description
Hereinafter, an embodiment of the present invention (hereinafter, referred to as the present embodiment) will be described with reference to the drawings. Note that, for the sake of convenience of description, the description of the members having the same reference numerals as those already described in the description of the present embodiment will be omitted. For convenience of explanation, the dimensions of the respective members shown in the drawings may be different from the actual dimensions of the respective members.
In the description of the present embodiment, for convenience of description, the terms "left-right direction", "front-back direction", and "up-down direction" are appropriately used. These directions are relative directions set for the vehicle 100 shown in fig. 1A and 1B. Here, the "up-down direction" is a direction including the "up direction" and the "down direction". The "front-rear direction" is a direction including the "front direction" and the "rear direction". The "left-right direction" is a direction including the "left direction" and the "right direction".
The following describes a vehicle 100 including the information transmission device 40 according to the present embodiment. Fig. 1A illustrates a top view of the vehicle 100. Fig. 1B illustrates a left side view of the vehicle 100. Vehicle 100 is a vehicle capable of traveling in an autonomous driving mode, and includes information transmitting device 40. The information transmission device 40 includes an information transmission unit 401 and a transmission control unit 402 (see fig. 2). The information transmission device 40 is disposed on the roof 100A of the vehicle 100, and is configured to emit light, infrared laser light, sound, radio waves, and the like to the outside of the vehicle 100.
In the present embodiment, a single information transmission device 40 is disposed on the vehicle body ceiling 100A, but the number, arrangement, shape, and the like are not particularly limited as long as the information transmission device 40 can irradiate a light pattern to an object existing in an arbitrary direction with respect to the vehicle 100. For example, when the information transmitting device 40 includes 4 road surface drawing devices, the road surface drawing devices may be arranged in the left headlamp 20L, the right headlamp 20R, the left rear combination lamp 30L, and the right rear combination lamp 30R, respectively. The road surface drawing device may be disposed so as to surround the side surface 100B of the vehicle 100.
Next, the vehicle system 1 of the vehicle 100 will be described with reference to fig. 2. Fig. 2 illustrates a block diagram of the vehicle system 1. As illustrated in fig. 2, the vehicle System 1 includes a vehicle control unit 3, a sensor 5, a camera 6, a radar 7, an HMI (Human Machine Interface) 8, a GPS (Global Positioning System) 9, a wireless communication unit 10, and a map information storage unit 11. The vehicle system 1 further comprises a steering actuator 12, a steering device 13, a brake actuator 14, a braking device 15, an acceleration actuator 16 and an acceleration device 17.
The vehicle system 1 further includes a vehicle communication system 2. The vehicle communication system 2 includes a detection unit 300 that combines the camera 6 and the radar 7, and an information transmission device 40. The information transmission device 40 includes an information transmission unit 401 and a transmission control unit 402. The transmission control unit 402 includes an estimation unit 403.
The vehicle control unit 3 is configured to control the traveling of the vehicle 100. The vehicle control portion 3 includes an Electronic Control Unit (ECU). The electronic control Unit includes a processor such as a CPU (Central Processing Unit), a ROM (Read Only Memory) in which various vehicle control programs are stored, and a RAM (Random Access Memory) in which various vehicle control data are temporarily stored. The processor is configured to run a program designated from among various vehicle control programs stored in the ROM on the RAM, and to execute various processes in cooperation with the RAM.
The sensor 5 includes an acceleration sensor, a speed sensor, a gyro sensor, and the like. The sensor 5 is configured to detect a running state of the vehicle 100 and output running state information to the vehicle control unit 3. The sensor 5 may further include a seating sensor for detecting whether the driver is seated in the driver's seat, a face direction sensor for detecting the direction of the face of the driver, an outside weather sensor for detecting an outside weather state, a human body sensor for detecting whether or not a person is present in the vehicle, and the like.
The camera 6 is a camera including an image pickup Device such as a CCD (Charge-Coupled Device) or a CMOS (complementary MOS). The radar 7 is a millimeter wave radar, a microwave radar, a laser radar, or the like. The camera 6 and/or the radar 7 are configured to detect the surrounding environment of the vehicle 100 (other vehicles, pedestrians, road shapes, traffic signs, obstacles, and the like) and output the surrounding environment information to the vehicle control unit 3. The radar 7 can also detect an object such as a pedestrian located in the periphery of the vehicle 100. The radar 7 may be configured to be able to receive radio waves transmitted from another communication device.
The HMI8 includes an input unit that receives an input operation from the driver, and an output unit that outputs travel information and the like to the driver. The input unit includes a steering wheel, an accelerator pedal, a brake pedal, a driving mode changeover switch that switches the driving mode of the vehicle 100, and the like. The output unit is a display for displaying various kinds of travel information.
The GPS9 is configured to acquire current position information of the vehicle 100 and output the acquired current position information to the vehicle control unit 3. The wireless communication unit 10 is configured to: information (e.g., travel information, etc.) related to other vehicles located around the vehicle 100 is received from the other vehicles, and the information (e.g., travel information, etc.) related to the vehicle 100 is transmitted to the other vehicles (inter-vehicle communication). The wireless communication unit 10 is configured to receive infrastructure information from an infrastructure such as a traffic signal or a beacon light and transmit travel information of the vehicle 100 to an infrastructure device (road-to-vehicle communication). The vehicle 100 may communicate directly with other vehicles or infrastructure or may communicate via a wireless communication network. The map information storage unit 11 is an external storage device such as a hard disk drive that stores map information, and is configured to output the map information to the vehicle control unit 3.
The information transmission device 40 includes an information transmission unit 401 and a transmission control unit 402. The information transmitting unit 401 includes, for example, at least one of the following devices: a road surface drawing device including a laser light source and a light deflection device for deflecting laser light emitted from the laser light source; a laser transmitter for irradiating infrared laser beams of various wave numbers; a directional speaker having higher directivity than a normal speaker; and a radio wave transmitting device for transmitting a radio wave for communication with a mobile communication terminal or the like. For example, when the information transmission unit 401 includes a road surface drawing device, the optical deflection device is a movable mirror such as a MEMS (Micro Electro Mechanical Systems) mirror or a galvanometer mirror (ガルバノミラー). As described later, the road surface drawing device draws a light pattern on the road surface around the object by scanning the laser light.
The information transmitting unit 401 can transmit predetermined information to an object such as a pedestrian located in the periphery of the vehicle 100. The information transmitting unit 401 may include, for example, a body display provided in the vehicle 100. In this case, the information transmitting unit 401 displays predetermined information on the vehicle body display or the like. The vehicle body display may be provided on the front surface of vehicle 100, for example, or may be a display displayed on a windshield.
The transmission control unit 402 is configured to include an Electronic Control Unit (ECU). The transmission control unit 402 is configured to control the information transmission unit 401. The transmission control unit 402 is configured to control the road surface drawing device to irradiate the object with the laser light based on the position information of the object, for example. The transmission control unit 402 and the vehicle control unit 3 may be configured to include the same electronic control unit. When the information transmission unit 401 includes a plurality of devices (a laser transmission device, a directional speaker, a radio wave transmission device, and the like), the transmission control unit 402 can determine which device is used to transmit the predetermined information according to the situation around the vehicle 100.
The estimation unit 403 of the transmission control unit 402 determines whether or not there is an object (such as a pedestrian) that can enter the estimated course of the vehicle 100, based on the information (course information) about the estimated course of the vehicle 100 generated by the vehicle control unit 3 and the information about the object around the vehicle 100 detected by the detection unit 300. The estimation unit 403 specifies an object that is most likely to intrude into the estimated travel route of the vehicle 100.
When the vehicle 100 travels in the automatic driving mode, the vehicle control unit 3 automatically generates at least one of a steering control signal, an acceleration control signal, and a braking control signal based on the travel state information, the surrounding environment information, the current position information, the map information, and the like. The steering actuator 12 is configured to receive a steering control signal from the vehicle control unit 3 and control the steering device 13 based on the received steering control signal. The brake actuator 14 is configured to receive a brake control signal from the vehicle control unit 3 and control the brake device 15 based on the received brake control signal. The acceleration actuator 16 is configured to receive an acceleration control signal from the vehicle control unit 3 and control the acceleration device 17 based on the received acceleration control signal. In this way, in the automatic driving mode, the travel of the vehicle 100 is automatically controlled by the vehicle system 1.
On the other hand, when the vehicle 100 is running in the manual driving mode, the vehicle control unit 3 generates a steering control signal, an acceleration control signal, and a braking control signal in accordance with manual operations of an accelerator pedal, a brake pedal, and a steering wheel by the driver. In this way, in the manual driving mode, the steering control signal, the acceleration control signal, and the brake control signal are generated by manual operations of the driver, and thus the travel of the vehicle 100 is controlled by the driver.
Next, a driving mode of vehicle 100 will be described. The driving modes include an automatic driving mode and a manual driving mode. The automatic driving mode includes a full automatic driving mode, a high driving assistance mode, and a driving assistance mode. In the full-automatic driving mode, the vehicle system 1 automatically performs all the travel control of the steering control, the braking control, and the acceleration control, and the driver is not in a state in which the vehicle 100 can be driven. In the high driving assist mode, the vehicle system 1 automatically performs all the travel control of the steering control, the braking control, and the acceleration control, and the driver is in a state in which the vehicle 100 can be driven but does not drive the vehicle 100. In the driving assistance mode, the vehicle system 1 automatically performs travel control of a part of steering control, braking control, and acceleration control, and the driver drives the vehicle 100 with driving assistance of the vehicle system 1. On the other hand, in the manual driving mode, the vehicle system 1 does not automatically perform the running control, and the driver drives the vehicle 100 without the driving assistance of the vehicle system 1.
In addition, the driving mode of the vehicle 100 may be switched by operating a driving mode switching switch. In this case, the vehicle control unit 3 switches the driving mode of the vehicle 100 among 4 driving modes (full-automatic driving mode, high driving assistance mode, manual driving mode) in accordance with the operation of the driving mode switching switch by the driver. The driving mode of the vehicle 100 may be automatically switched based on information on a travelable section in which the autonomous vehicle can travel, a travel prohibited section in which travel of the autonomous vehicle is prohibited, or information on an external weather state. In this case, the vehicle control unit 3 switches the driving mode of the vehicle 100 based on these pieces of information. Further, the driving mode of the vehicle 100 may be automatically switched by using a seating sensor, a face orientation sensor, or the like. In this case, the vehicle control unit 3 switches the driving mode of the vehicle 100 based on the output signals from the seating sensor and the face direction sensor.
Fig. 3 is a vertical cross-sectional view showing a schematic configuration of the road surface drawing lamp 102 incorporated in the road surface drawing device when the information transmitting unit 401 includes the road surface drawing device. The road surface drawing lamp 102 is a lamp capable of drawing a road surface. As shown in fig. 3, the road surface drawing lamp 102 includes: a lamp body 111 having an opening on the vehicle front side; and a transparent front cover 112 attached to cover the opening of the lamp body 111.
The road surface drawing lamp 102 includes a light source unit 120 and a light distribution unit 130 that reflects light from the light source unit 120. The light source unit 120 and the light distribution unit 130 are supported at predetermined positions in the lamp chamber 113 by a support plate 141. The support plate 141 is attached to the lamp body 111 via an alignment screw 142.
The light source unit 120 includes a plurality of (3 in this example) light sources 121, a heat sink 122, a plurality of (4 in this example) lenses 123, and a light collecting unit 124. The light source unit 120 is fixed to the front surface of the support plate 141. Each light source 121 is electrically connected to lamp control unit 4, which is one of transmission control units 402.
The light distribution portion 130 includes a terminal portion 137 and a reflecting mirror 138. The light distribution unit 130 determines a positional relationship with the light source unit 120 so that the laser light emitted from the light source unit 120 can be reflected to the front of the road surface drawing lamp 102 via the reflector 138. The light distribution portion 130 is fixed to the tip of a protrusion 143 protruding forward from the front surface of the support plate 141. Terminal 137 is electrically connected to lamp control unit 4.
The road surface drawing lamp 102 is configured such that the optical axis can be adjusted in the horizontal direction and the vertical direction by adjusting the posture of the support plate 141 by rotating the alignment screw 142.
Fig. 4 is a side view of the light source unit 120 constituting the pavement marker lamp 102. As shown in fig. 4, the light source unit 120 has a first light source 121a, a second light source 121b, a third light source 121c, a heat sink 122, a first lens 123a, a second lens 123b, a third lens 123c, a fourth lens 123d, and a light condensing part 124.
The first light source 121a is a light source that emits red laser light R, and includes a light emitting element including a red laser diode. Similarly, the second light source 121B includes a green laser diode that emits green laser light G, and the third light source 121c includes a blue laser diode that emits blue laser light B. The first light source 121a, the second light source 121b, and the third light source 121c are arranged such that the respective light exit surfaces, i.e., the laser emission surface 125a, the laser emission surface 125b, and the laser emission surface 125c are parallel to each other. The light emitting element of each light source is not limited to a laser diode.
The first to third light sources 121a to 121c are disposed so that the laser emitting surfaces 125a to 125c thereof face the front of the road surface drawing lamp 102, and are attached to the heat sink 122. The heat sink 122 is made of a material having high thermal conductivity such as aluminum, and is attached to the light source unit 120 in a state where the rear surface of the heat sink 122 is in contact with the support plate 141 (see fig. 3).
The first to fourth lenses 123a to 123d include, for example, collimator lenses. The first lens 123a is disposed on the optical path of the red laser beam R between the first light source 121a and the light collecting unit 124, and converts the red laser beam R emitted from the first light source 121a into parallel light and emits the parallel light to the light collecting unit 124. The second lens 123b is disposed on the optical path of the green laser beam G between the second light source 121b and the light collecting unit 124, and converts the green laser beam G emitted from the second light source 121b into parallel light and emits the parallel light to the light collecting unit 124.
The third lens 123c is disposed on the optical path of the blue laser beam B between the third light source 121c and the light collecting unit 124, and converts the blue laser beam B emitted from the third light source 121c into parallel light and emits the parallel light to the light collecting unit 124. The fourth lens 123d is fitted into an opening provided in an upper portion of the housing 126 of the light source unit 120. The fourth lens 123d is provided on the optical path of the white laser light W (described later) between the condensing unit 124 and the light distribution unit 130 (see fig. 3), and converts the white laser light W emitted from the condensing unit 124 into parallel light and emits the parallel light to the light distribution unit 130.
The condensing unit 124 condenses the red, green, and blue laser beams R, G, and B to generate the white laser beam W. The light-condensing section 124 has a first dichroic mirror 124a, a second dichroic mirror 124b, and a third dichroic mirror 124 c.
The first dichroic mirror 124a is a mirror that reflects at least red light and transmits blue light and green light, and is disposed so as to reflect the red laser light R having passed through the first lens 123a toward the fourth lens 123 d. The second dichroic mirror 124b is a mirror that reflects at least green light and transmits blue light, and is disposed so as to reflect the green laser light G having passed through the second lens 123b toward the fourth lens 123 d. The third dichroic mirror 124c is a mirror that reflects at least blue light, and is disposed so as to reflect the blue laser light B having passed through the third lens 123c toward the fourth lens 123 d.
The first to third dichroic mirrors 124a to 124c determine the positional relationship between the reflected laser beams so that the optical paths of the laser beams are parallel to each other and the laser beams converge and are incident on the fourth lens 123 d. In this example, the first to third dichroic mirrors 124a to 124c are arranged such that regions irradiated with laser light (reflection points of laser light) are aligned on a straight line in the dichroic mirrors 124a to 124 c.
The blue laser light B emitted from the third light source 121c is reflected by the third dichroic mirror 124c, and propagates toward the second dichroic mirror 124B. The green laser light G emitted from the second light source 121B is reflected by the second dichroic mirror 124B toward the first dichroic mirror 124a, and is merged with the blue laser light B transmitted through the second dichroic mirror 124B. The red laser light R emitted from the first light source 121a is reflected by the first dichroic mirror 124a toward the fourth lens 123d, and is combined with the condensed light of the blue laser light B and the green laser light G transmitted through the first dichroic mirror 124 a. As a result, the white laser beam W is formed, and the formed white laser beam W propagates toward the light distribution section 130 through the fourth lens 123 d.
Of the first to third light sources 121a to 121c, the first light source 121a that emits the red laser beam R is disposed at a position closest to the light collecting unit 124, the third light source 121c that emits the blue laser beam B is disposed at a position farthest from the light collecting unit 124, and the second light source 121B that emits the green laser beam G is disposed at an intermediate position. That is, the first to third light sources 121a to 121c are arranged at positions closer to the light condensing unit 124 as the wavelength of the emitted laser light becomes longer.
Fig. 5 is a perspective view of the light distribution portion 130 constituting the road surface drawing lamp 102 viewed from the front side. As shown in fig. 5, the light distribution section 130 includes a base 131, a first rotating body 132, a second rotating body 133, a first torsion bar 134, a second torsion bar 135, permanent magnets 136a and 136b, a terminal section 137, and a mirror 138. The light distribution section 130 includes, for example, a galvanometer mirror. The light distribution unit 130 may be formed of, for example, a MEMS (micro) mirror.
The base 131 is a frame having an opening 131a at the center, and is fixed to the protruding portion 143 (see fig. 3) in a state of being inclined in the front-rear direction of the road surface drawing lamp 102. The first rotor 132 is disposed in the opening 131a of the base 131. The first rotating body 132 is a frame having an opening 132a at the center, and is supported to be rotatable leftward and rightward (in the vehicle width direction) with respect to the base 131 by a first torsion bar 134 extending from the lower rear side to the upper front side of the road surface drawing lamp 102.
The second rotor 133 is disposed in the opening 132a of the first rotor 132. The second rotating body 133 is a rectangular flat plate, and is supported rotatably in the vertical direction (vertical direction) with respect to the first rotating body 132 by a second torsion bar 135 extending in the vehicle width direction. When the first rotating body 132 rotates left and right about the first torsion bar 134, the second rotating body 133 rotates left and right together with the first rotating body 132. A mirror 138 is provided on the surface of the second rotor 133 by plating, vapor deposition, or the like.
A pair of permanent magnets 136a is provided on the base 131 at positions orthogonal to the extending direction of the first torsion bar 134. The permanent magnet 136a forms a magnetic field orthogonal to the first torsion bar 134. A first coil (not shown) is provided on first rotor 132, and the first coil is connected to lamp control unit 4 via terminal unit 137. Further, a pair of permanent magnets 136b is provided on the base 131 at positions orthogonal to the extending direction of the second torsion bar 135. The permanent magnet 136b forms a magnetic field orthogonal to the second torsion bar 135. A second coil (not shown) is disposed on the second rolling element 133, and the second coil is connected to the lamp control unit 4 via the terminal unit 137.
The first and second rotating bodies 132 and 133 are reciprocally rotated left and right by controlling the magnitude and direction of the current flowing through the first and second coils, and the second rotating body 133 is reciprocally rotated up and down independently. Thereby, the mirror 138 reciprocates up and down and right and left.
The light source unit 120 and the light distribution unit 130 are positioned so that the laser light emitted from the light source unit 120 is reflected by the reflector 138 toward the front of the road surface drawing lamp 102. The light distribution unit 130 scans the front of the vehicle 100 with laser light by reciprocating rotation of the mirror 138. For example, the light distribution unit 130 scans an area where a drawing pattern is to be formed with laser light. Thus, the laser beam is irradiated to the drawing pattern forming region, and a predetermined drawing pattern is formed in front of the vehicle 100.
Next, an operation example of the vehicle communication system 2 will be described.
(first working example)
With reference to fig. 6 and 7, a case where predetermined information is transmitted to the object when the vehicle 100 turns left will be described. Fig. 6 is a flowchart showing a process until predetermined information is transmitted to an object. Fig. 7 is a schematic diagram for explaining a case where predetermined information is transmitted to an obstacle object when the vehicle 100 turns left. In addition, in the first working example, the vehicle 100 is scheduled to turn left at the intersection I. In addition, when the first operation example is implemented by the vehicle communication system 2, the information transmitting unit 401 includes a road surface drawing device.
As illustrated in fig. 6, first, the vehicle control unit 3 determines a route (estimated route) on which the vehicle 100 is expected to pass (step 01). Specifically, the vehicle control unit 3 determines the expected travel route of the vehicle 100 based on destination information input by the driver of the vehicle 100, current position information acquired by the GPS9, information about other vehicles around the vehicle 100 received by the wireless communication unit 10, map information stored in the map information storage unit 11, and the like. In the first working example, the vehicle 100 is scheduled to turn left at the intersection I as illustrated in fig. 7. Therefore, the vehicle control unit 3 determines that the vehicle 100 is scheduled to turn left at the intersection I and pass through the crosswalk Z1.
In step 02, the detection unit 300 transmits information about the object (such as a pedestrian) around the vehicle 100 detected by the detection unit 300 to the transmission control unit 402. In fig. 7, the detection portion 300 detects a pedestrian P1 located near the crosswalk Z1, a pedestrian P2 located near the crosswalk Z2, and a pedestrian P3 located further away from the vehicle 100 than the pedestrian P1. Step 02 may be performed before step 01.
In step 03, the estimation unit 403 of the transmission control unit 402 determines whether or not there is an object (such as a pedestrian) that may enter the estimated course of the vehicle 100, based on the information (course information) about the estimated course of the vehicle 100 and the information about the object in the vicinity of the vehicle 100 detected by the detection unit 300. If there is a pedestrian or the like that may intrude into the expected course of the vehicle 100 (yes in step 03), the routine proceeds to step 04. In fig. 7, a pedestrian P1 and a pedestrian P3 attempt to cross the crosswalk Z1. Therefore, the estimation section 403 determines that there is a possibility that the pedestrian P1 or the pedestrian P3 intrude into the estimated course of the vehicle 100. On the other hand, since the pedestrian P2 does not cross the crosswalk Z1, the estimation section 403 determines that the pedestrian P2 is unlikely to intrude into the estimated course of the vehicle 100. If there is no target person who may intrude into the expected course of the vehicle 100 (no in step 03), the present process is terminated.
In step 04, the estimation unit 403 specifies the target person who is most likely to intrude into the estimated course of the vehicle 100, based on the information (course information) about the estimated course of the vehicle 100 and the information about the target object around the vehicle 100 detected by the detection unit 300. The transmission control unit 402 generates an instruction signal for transmitting predetermined information to the target person specified by the estimating unit 403. In the example shown in fig. 7, the pedestrian P3 is located farther from the vehicle 100 than the pedestrian P1. Therefore, the subject most likely to intrude into the predicted course of the vehicle 100 is the pedestrian P1. Therefore, the transmission control unit 402 generates an instruction signal for transmitting predetermined information to the pedestrian P1.
The transmission control unit 402 controls the information transmission unit 401 based on the generated instruction signal. The information transmitting unit 401 transmits the first information to the subject specified by the estimating unit 403 (step 05). The first information is information for making a pedestrian or the like recognize that some information is transmitted or is being transmitted from the vehicle 100. In the example shown in fig. 7, light as the first information is emitted from the information transmitting portion 401 toward the face of the pedestrian P1. The emitted light is preferably weak light to the extent that a human can visually recognize it. The light illuminates the face of the pedestrian P1 and projects a circle C.
Further, the information transmitting unit 401 transmits the second information to the subject specified by the estimating unit 403 (step 06). The second information refers to a message or the like transmitted from the vehicle 100 to a pedestrian or the like. The information transmission device 40 draws predetermined information on the crosswalk Z1. In the example shown in fig. 7, the information transmission device 40 draws a sign S on the crosswalk Z1 for reminding the pedestrian P1 of paying attention not to cross the crosswalk Z1. Since the light is irradiated to the pedestrian P1 itself, the pedestrian P1 can recognize that the symbol S is information transmitted to itself. Thus, the pedestrian P1 does not cross the crosswalk Z1. The pedestrians P2 to P3 may not transmit unnecessary information. The vehicle 100 can pass the crosswalk Z1 without contacting the pedestrian P1. When step 06 is executed, the present process ends.
According to the first working example, the information transmitting portion 401 irradiates light as the first information to the pedestrian P1, which is most likely to intrude into the expected traveling route of the vehicle 100, among pedestrians located around the vehicle 100. Thus, according to the first working example, communication can be performed only with a specific partner. In addition, the pedestrian P1 can recognize the presence of the vehicle 100. Further, the pedestrian P1 can recognize that some kind of information is conveyed from the vehicle 100.
In addition, according to the first working example, since the second information is displayed in the vicinity of the traveling direction of the pedestrian P1, the pedestrian P1 can easily recognize the message (second information) communicated from the vehicle 100 to itself.
In addition, according to the first working example, since the pedestrian P1 is irradiated with light as the first information, the pedestrian P1 can recognize that the vehicle 100 intends to convey some kind of information to itself.
(second working example)
Fig. 8 is a schematic diagram for explaining a case where predetermined information is transmitted to an object that becomes an obstacle when the vehicle 100 turns left. In the second working example, the description of the parts overlapping with the first working example is omitted. The second working example is different from the first working example in that: pedestrians P4-P6 wear communication glasses GL 4-GL 6. The eyeglasses GL4 to GL6 having a communication function have two antennas. Radio waves are transmitted from the two antennas. The detection unit 300 can receive radio waves transmitted from the two antennas. In addition, when the second operation example is implemented by the vehicle communication system 2, the information transmitting unit 401 includes a road surface drawing device.
In the second working example, as in the first working example, the vehicle control unit 3 also determines that the vehicle 100 is scheduled to turn left at the intersection I and pass through the crosswalk Z1 (step 01 in fig. 6). Further, the detection portion 300 detects a pedestrian P4 located near the crosswalk Z1, a pedestrian P5 located near the crosswalk Z2, and a pedestrian P6 located further away from the vehicle 100 than the pedestrian P4 (step 02 of fig. 6). Therefore, the estimation unit 403 of the transmission control unit 402 determines that there is a possibility that the pedestrian P4 or the pedestrian P6 intrude into the estimated course of the vehicle 100 (yes in step 03 of fig. 6). On the other hand, the estimation unit 403 determines that the pedestrian P5 is unlikely to intrude into the estimated course of the vehicle 100. Then, the estimation unit 403 determines that the subject most likely to intrude into the estimated course of the vehicle 100 is the pedestrian P4 (step 04 in fig. 6). The transmission control unit 402 generates an instruction signal for transmitting predetermined information to the pedestrian P4.
Here, the vehicle control unit 3 receives radio wave information transmitted from the antennas of the communication-function-equipped glasses GL4 to GL6 worn by the pedestrians P4 to P6. The vehicle control unit 3 determines the face orientations of the pedestrians P4 to P6 based on the received radio wave information, and specifies the direction in which the pedestrians P4 to P6 are looking. The vehicle control portion 3 transmits information about the direction in which the pedestrian is looking to the transmission control portion 40. Instead of the vehicle control unit 3, the transmission control unit 402 may determine the directions in which the pedestrians P4 to P6 are looking based on radio wave information transmitted from the antennas of the communication-function-equipped glasses GL4 to GL6 worn by the pedestrians P4 to P6.
Note that, for example, in the case where the pedestrian is oriented in a direction different from the vehicle 100, unlike the case of the first working example, even if light is irradiated to the face of the pedestrian, the pedestrian may not notice the light. Therefore, the transmission control unit 402 controls the information transmission unit 401 to change the light emission direction based on the information including the direction in which the pedestrian is looking, which is acquired from the vehicle control unit 3. That is, the transmission control unit 402 controls the information transmission unit 401 to change the light emission direction according to the direction in which the pedestrian is facing. In the example shown in fig. 8, the information transmitting unit 401 irradiates light as the first information to the glasses GL4 to GL6 having the communication function. The irradiated light is reflected by the communication-function-equipped glasses GL4 to GL6, and as a result, the pedestrian recognizes the light (step 05 in fig. 6).
In the second operation example, the vehicle control unit 3 determines that the pedestrian P4 is oriented leftward and the pedestrians P5-6 are oriented rearward. Since the subject most likely to intrude into the expected traveling route of the vehicle 100 is the pedestrian P4, the information transmission unit 401 irradiates light to the glasses GL4 with a communication function worn by the pedestrian P4. In this way, the pedestrian P4 recognizes the light and observes the direction of the vehicle 100 as the light emission source. As illustrated in fig. 8, the information transmission unit 401 draws a symbol S as second information on the crosswalk Z1 (step 06 in fig. 6). Thereby, the pedestrian P4 can recognize the symbol S. Thus, the pedestrian P4 does not cross the crosswalk Z1. The pedestrians P5 to P6 may not transmit unnecessary information. The vehicle 100 can pass the crosswalk Z1 without contacting the pedestrian P4.
According to the second operation example, the information transmitting portion 401 emits light in the direction in which the pedestrian P4 is looking. Therefore, the pedestrian P4 can easily visually confirm the emitted light.
(third working example)
Fig. 9 is a schematic diagram for explaining a case where predetermined information is transmitted to an object that becomes an obstacle when the vehicle 100 turns left. In the third working example, the description of the parts overlapping with the first working example is omitted. The third working example is different from the first working example in that: the pedestrians P7 to P9 carry communication terminals TD7 to TD9 capable of communicating with the vehicle 100. The communication terminals TD7 to TD9 are, for example, smart phones. In the case where the third operation example is implemented by the vehicle communication system 2, the information transmitting unit 401 includes a road surface drawing device and a radio wave transmitting device.
In the third working example as well, the vehicle control unit 3 determines that the vehicle 100 is scheduled to turn left at the intersection I and pass through the crosswalk Z1 (step 01 in fig. 6), as in the first working example. Further, the detection portion 300 detects a pedestrian P7 located near the crosswalk Z1, a pedestrian P8 located near the crosswalk Z2, and a pedestrian P9 located further away from the vehicle 100 than the pedestrian P7 (step 02 of fig. 6).
In fig. 9, a pedestrian P7 and a pedestrian P9 want to cross the pedestrian crossing Z1. Therefore, the estimation unit 403 determines that there is a possibility that the pedestrian P7 or the pedestrian P9 will intrude into the estimated course of the vehicle 100 (yes in step 03 of fig. 6). On the other hand, the estimation unit 403 determines that the pedestrian P8 is unlikely to intrude into the estimated course of the vehicle 100. Then, the vehicle control unit 3 determines that the subject most likely to intrude into the estimated course of the vehicle 100 is the pedestrian P7 (step 04 in fig. 6). The transmission control unit 402 generates an instruction signal for transmitting predetermined information to the pedestrian P7.
The transmission control unit 402 controls the information transmission unit 401 based on the generated instruction signal. As a result, the information transmitting unit 401 transmits the radio wave as the first information to the communication terminal TD7 carried by the pedestrian P7 (step 05 in fig. 6). The communication terminal TD7 that has received the radio wave vibrates as illustrated in fig. 9. Thus, the pedestrian P7 confirms the surroundings of the pedestrian P7 itself.
Further, the information transmitting unit 401 irradiates light as second information to a road surface near the pedestrian P7, for example, the crosswalk Z1 (step 06 in fig. 6). In the example shown in fig. 9, a symbol S is drawn on the crosswalk Z1. Thereby, the pedestrian P7 can recognize the symbol S. Thus, the pedestrian P7 does not cross the crosswalk Z1. The pedestrians P8 to P9 may not transmit unnecessary information. The vehicle 100 can pass the crosswalk Z1 without contacting the pedestrian P7.
According to the third working example, by vibrating the communication terminal TD7 carried by the pedestrian P7, it is possible to communicate with the pedestrian P7 carrying the vibrating communication terminal TD 7.
(fourth working example)
Fig. 10 is a schematic diagram for explaining a case where predetermined information is transmitted to an object that becomes an obstacle when the vehicle 100 turns left. In the fourth working example, the description of the parts overlapping with the first working example is omitted. In addition, when the fourth operation example is implemented by the vehicle communication system 2, the information transmitting unit 401 includes a road surface drawing device and a directional speaker.
In the fourth working example, as in the first working example, the vehicle control unit 3 also determines that the vehicle 100 is scheduled to turn left at the intersection I and pass through the crosswalk Z1 (step 01 in fig. 6). Further, the detection portion 300 detects a pedestrian P10 located near the crosswalk Z1, a pedestrian P11 located near the crosswalk Z2, and a pedestrian P12 located further away from the vehicle 100 than the pedestrian P10 (step 02 of fig. 6).
In fig. 10, a pedestrian P10 and a pedestrian P12 want to cross the crosswalk Z1. Therefore, the estimation section 403 determines that the pedestrian P10 and the pedestrian P12 are likely to intrude into the estimated course of the vehicle 100 (yes in step 03 of fig. 6). On the other hand, the estimation unit 403 determines that the pedestrian P11 is unlikely to intrude into the estimated course of the vehicle 100. Then, the vehicle control unit 3 determines that the subject most likely to intrude into the estimated course of the vehicle 100 is the pedestrian P10 (step 04 in fig. 6). The transmission control unit 402 generates an instruction signal for transmitting predetermined information to the pedestrian P10.
The transmission control unit 402 controls the information transmission unit 401 based on the generated instruction signal. As a result, the information transmitting unit 401 emits the voice as the first information to the pedestrian P10 from the directional speaker of the information transmitting unit 401 (step 05 in fig. 6). Although the pedestrian P10 can recognize the voice, the pedestrians P11 to P12 cannot recognize the voice. Therefore, the pedestrian P10 recognizes the voice and observes the direction of the vehicle 100 that is the transmission source of the voice.
The information transmitting unit 401 irradiates light as the second information to the vicinity of the pedestrian P10, for example, the crosswalk Z1 (step 06 in fig. 6). In the example shown in fig. 10, a symbol S is drawn on the crosswalk Z1. Thereby, the pedestrian P10 can recognize the symbol S. Thus, the pedestrian P10 does not cross the crosswalk Z1. On the other hand, the pedestrians P11 to P12 may not transmit unnecessary information. The vehicle 100 can pass the crosswalk Z1 without contacting the pedestrian P10.
According to the fourth working example, since a voice is emitted from the directional speaker of the information transmitting unit 401 to the pedestrian P10, information can be transmitted to the specific pedestrian P10. Therefore, communication can be performed only with the pedestrian P10.
In the first working example described above, the pedestrian P1 may be intermittently irradiated with light. In this case, the energy of the output light and the energy of the light emitted to the pedestrian P1 can be limited. Therefore, the consumed energy of light can be reduced without placing an excessive burden on the eyes of the pedestrian P1.
In the second working example described above, the pedestrians P4 to P6 wear the glasses GL4 to GL6 with communication functions, but the present invention is not limited thereto. Any wearable device having a communication function may be used as long as it is a device other than eyeglasses.
In the third working example described above, the example of vibration of the communication terminal TD7 carried by the pedestrian P7 was explained, but the example is not limited thereto. For example, instead of vibrating the communication terminal TD7, the communication terminal TD7 may play back a sound such as music or voice. In addition, for example, sound such as music may be played from the communication terminal TD7 while the communication terminal TD7 is vibrating.
In the fourth working example described above, an example in which sound is emitted from the directional speaker of the information transmitting unit 401 has been described, but the present invention is not limited to this. For example, sound other than voice (e.g., music) may be output from the directional speaker of the information transmitting unit 401.
In the above-described embodiment, the description has been made using the example in which the second information is transmitted to the pedestrian by the road surface drawing, but the present invention is not limited to this. For example, the second information may be transmitted by voice such as voice, or may be transmitted to a pedestrian by displaying a message on a display unit of an electronic communication device such as a smartphone.
In the above-described embodiment, the estimation unit 403 is included in the transmission control unit 402, but the present invention is not limited to this example. The estimation unit 403 may be included in the vehicle control unit 3, for example.
In the above embodiment, the example of performing step 05 and step 06 is described, but the invention is not limited thereto. For example, step 06 need not be performed. That is, the second information does not necessarily have to be conveyed to the pedestrian.
The road surface drawing device of the information transmission unit 401 may include a light source that emits infrared rays. In this case, the information transmitting unit 401 may emit infrared rays toward the pedestrian. When infrared rays hit a pedestrian, the pedestrian feels hot, and thus the first information can be recognized.
In the above-described embodiments, the description has been given of the mode in which the first information is transmitted to the pedestrian by at least one of light, heat, sound, and vibration, but the invention is not limited thereto. The first information may be transmitted to the pedestrian by appropriately combining a plurality of light, heat, sound, and vibration.
The present invention is not limited to the above-described embodiments, and modifications, improvements, and the like can be appropriately made. The material, shape, size, numerical value, form, number, arrangement location, and the like of each component in the above embodiments are arbitrary and are not limited as long as the object of the present invention can be achieved.
The present application is based on the japanese patent application No. 2018, 12/4 (japanese patent application No. 2018-227396), the contents of which are incorporated herein by reference.

Claims (7)

1. A vehicle communication system is characterized by comprising:
a detection unit capable of detecting a target person around a host vehicle;
an estimation unit that determines a target person who is most likely to enter an estimated course of the host vehicle, based on the course information acquired from the vehicle control unit; and
an information transmitting unit that transmits first information so that the identified target person can be identified by at least one of light, heat, sound, and vibration.
2. The communication system for a vehicle according to claim 1,
the information transmitting unit conveys second information different from the first information to the subject person.
3. The communication system for a vehicle according to claim 1 or 2,
the information transmitting unit transmits the first information by emitting light to the subject person.
4. The communication system for a vehicle according to claim 3,
the information transmitting unit intermittently irradiates light to the subject person.
5. The communication system for a vehicle according to claim 3 or 4,
the information transmitting unit emits light in a direction in which the subject person is looking based on information including the direction in which the subject person is looking, which is acquired from the vehicle control unit.
6. The communication system for a vehicle according to claim 1 or 2,
the information transmitting unit is capable of communicating with a communication terminal that can be carried by the subject person,
the information transmitting unit is configured to cause the communication terminal to generate at least one of sound and vibration.
7. The communication system for a vehicle according to claim 1 or 2,
the information transmitting unit includes a directional speaker for transmitting a sound to the subject person.
CN201980080275.1A 2018-12-04 2019-11-14 Vehicle communication system Pending CN113165573A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2018-227396 2018-12-04
JP2018227396 2018-12-04
PCT/JP2019/044757 WO2020116121A1 (en) 2018-12-04 2019-11-14 Vehicular communication system

Publications (1)

Publication Number Publication Date
CN113165573A true CN113165573A (en) 2021-07-23

Family

ID=70975396

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980080275.1A Pending CN113165573A (en) 2018-12-04 2019-11-14 Vehicle communication system

Country Status (3)

Country Link
JP (1) JP7320000B2 (en)
CN (1) CN113165573A (en)
WO (1) WO2020116121A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013005903A1 (en) * 2013-04-05 2014-10-09 Volkswagen Aktiengesellschaft Device and method for warning road users of a traffic hazard
CN105867875A (en) * 2016-04-14 2016-08-17 吉林大学 Front pedestrian target recognition based automobile horn volume self-adaption control system
CN205706411U (en) * 2016-04-19 2016-11-23 北京奔驰汽车有限公司 A kind of traffic safety information interactive device and install the automobile of this device
JP2017159881A (en) * 2016-03-10 2017-09-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ Recognition result presentation device, recognition result presentation method and autonomous movable body
WO2018074011A1 (en) * 2016-10-20 2018-04-26 パナソニック株式会社 Pedestrian-vehicle communication system, in-vehicle terminal device, pedestrian terminal device and safe-driving assistance method
JP2018069752A (en) * 2016-10-24 2018-05-10 マツダ株式会社 Headlight control device for vehicle
WO2018198156A1 (en) * 2017-04-24 2018-11-01 三菱電機株式会社 Notification control device and notification control method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6447545B2 (en) * 2016-03-11 2019-01-09 トヨタ自動車株式会社 Vehicle lighting device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013005903A1 (en) * 2013-04-05 2014-10-09 Volkswagen Aktiengesellschaft Device and method for warning road users of a traffic hazard
JP2017159881A (en) * 2016-03-10 2017-09-14 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ Recognition result presentation device, recognition result presentation method and autonomous movable body
CN105867875A (en) * 2016-04-14 2016-08-17 吉林大学 Front pedestrian target recognition based automobile horn volume self-adaption control system
CN205706411U (en) * 2016-04-19 2016-11-23 北京奔驰汽车有限公司 A kind of traffic safety information interactive device and install the automobile of this device
WO2018074011A1 (en) * 2016-10-20 2018-04-26 パナソニック株式会社 Pedestrian-vehicle communication system, in-vehicle terminal device, pedestrian terminal device and safe-driving assistance method
JP2018069752A (en) * 2016-10-24 2018-05-10 マツダ株式会社 Headlight control device for vehicle
WO2018198156A1 (en) * 2017-04-24 2018-11-01 三菱電機株式会社 Notification control device and notification control method

Also Published As

Publication number Publication date
JPWO2020116121A1 (en) 2021-10-21
WO2020116121A1 (en) 2020-06-11
JP7320000B2 (en) 2023-08-02

Similar Documents

Publication Publication Date Title
US10602331B2 (en) Inter-vehicle communication system, vehicle system, vehicle illumination system and vehicle
CN109720267B (en) Vehicle lamp system
CN110154881B (en) Lighting system for vehicle and vehicle
CN108367707B (en) Lighting device for vehicle, and lighting control system
US20210256933A1 (en) Vehicle display system, vehicle system, and vehicle
CN114302828A (en) Display system for vehicle and vehicle
US20210347259A1 (en) Vehicle display system and vehicle
CN111225826B (en) Lamp system for vehicle
CN113165573A (en) Vehicle communication system
JP7309751B2 (en) vehicle lighting system
CN111247033B (en) Lamp system for vehicle
CN111247034B (en) Lamp system for vehicle
JP2020083050A (en) Vehicular illumination system
JP7284705B2 (en) vehicle lamp system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination