JP2020008943A - Vehicle identification and detection method with respect to vehicle, and device thereof - Google Patents

Abstract

To provide a vehicle identification and detection method with respect to a vehicle and a device thereof, that enable correct measurement of mutual position relation between vehicles in an area.SOLUTION: A vehicle identification and detection method with respect to a vehicle includes steps of: receiving a communication request to be transmitted from an adjacent vehicle by a high frequency signal in multiple different communication directions being symmetrical with a vehicle as a center on a location plane of the vehicle; giving identification information of the vehicle to an adjacent vehicle that has transmitted a communication request by a high frequency signal as an answer on the basis of a communication direction of a received communication request; transmitting a communication request in the multiple communication directions by a high frequency signal with the use of a time-division polling method or a simultaneous communication method; and receiving identification information to be replied from an adjacent vehicle by a high frequency signal. Contents of identification information include at least: individual vehicle information of the vehicle, direction information of a communication direction of a communication request received by the vehicle, and travel parameter information of the vehicle.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an active safety technology for a vehicle, and more particularly, to a method and apparatus for identifying and detecting a vehicle with respect to a vehicle in which an accident is prevented by the active safety technology.

  Safety is one of the most important issues for vehicle users or manufacturers, and technologies related to vehicle safety can be roughly classified into active safety technologies and passive safety technologies. Passive safety technology is a technology to reduce injuries after an accident has occurred in a vehicle, while active safety technology is applied to various electro-sensitive devices or detection devices to detect possible danger in advance. After the judgment, the danger is prevented from occurring during the operation of the vehicle through mechanical automatic control.

  At present, active safety technologies of many vehicles are already used in commercial vehicles, for example, anti-lock breaking system (ABS), traction control system (Traction Control system). System, TRC), Electronic Stability Control System (Electronic Stability Control, ESC), Lane Departure Warning System (Lane Departure Warning System, LDWS), Adaptive Cruise Control System (AdaptiveCC) Emergency Braking System (Autonomous Emergency Bra) ing, AEB) and the like have been proposed. These technologies mainly use lasers, microwave radars, and image recognition technologies to realize active detection between vehicles.

The safety of vehicles is constantly being improved, and realization of unmanned vehicles or autonomous driving is one of the goals of current vehicle manufacturers. Key technologies for implementing unmanned vehicles or autonomous driving include environmental sensing, navigational positioning, route selection, decision control, and the like.
The active safety technology described above, despite having many mature sensing technologies, still has complex relative positions, angles and distances within the last 20 meters of close range, and communication between vehicles. And the function of automatic negotiation operation continuation or negotiation deceleration stop cannot be realized, and the current vehicle positioning technology is mainly realized through a global positioning system (GPS).
However, there is a limit to the positioning accuracy of general civilian GPS, which can only reach an accuracy of about 5 meters (M), and it has not been possible to satisfy the high accuracy requirements by unmanned vehicles or automatic driving.

  The problem to be solved by the present invention is to accurately measure the mutual positional relationship between vehicles in an area, thereby supporting the safety control in the active operation of the vehicle, or providing data necessary for automatic driving. It is an object of the present invention to provide a method and apparatus for identifying and detecting a vehicle with respect to the vehicle.

  In order to solve the above problems, the method for identifying and detecting a vehicle with respect to a vehicle according to the present invention includes transmitting a high frequency signal from a neighboring vehicle in a plurality of different communication directions symmetric with respect to the center of the vehicle on a plane where the vehicle is located. Receiving a communication request to be transmitted, and, based on the communication direction of the communication request received by the vehicle, responding the identification information of the vehicle with a high-frequency signal to a nearby vehicle that has transmitted the communication request. Sending a communication request with a high-frequency signal by a time-division polling method or a simultaneous communication method in a plurality of different communication directions symmetrical to the center of the vehicle on the plane where the vehicle is located, and responding with a high-frequency signal from a neighboring vehicle Receiving the identification information, wherein the content of the identification information is at least the personal information of the vehicle and the communication of the communication request received by the vehicle. Including the direction information of the direction, and a travel parameter information of the vehicle.

Receiving communication requests transmitted by high-frequency signals from neighboring vehicles in eight different communication directions symmetrical to the center of the vehicle on the plane where the vehicle is located, and sequentially using a time-division polling method or a simultaneous communication method; Sending communication requests in the eight different communication directions.
The method may include calculating a distance between the vehicle and a nearby vehicle based on a radio signal analysis of the identification information that is returned.
The method may include a step of determining a direction of a nearby vehicle with respect to the present vehicle based on a communication direction in which the identification information is received or a content of the identification information.

  The communication request is received from different communication directions respectively through a plurality of high-frequency communication units, the high-frequency communication unit includes a high-frequency communication module, and an antenna electrically connected to the high-frequency communication module. The communication direction of the antenna of the high-frequency communication unit is different, and each of the high-frequency communication units is switchable between an active mode and a passive mode in a normal state. When the high-frequency communication unit is in the passive mode, After receiving a communication request from a nearby vehicle in a predetermined communication direction through the antenna that is electrically connected, and receiving the communication request by the high-frequency communication unit, communication of the antenna through the antenna that is electrically connected is performed. Responds to the nearby vehicle that sent the communication request based on the direction. Switching a plurality of the high-frequency communication units to the active mode by the time-division polling method or the simultaneous communication method using the communication main control module, the communication main control module is connected to the antenna of the high-frequency communication unit in the active mode. Electrically connected, the main communication control module sends a communication request via a communication direction of the electrically connected antenna, and identification information returned from a nearby vehicle through the electrically connected antenna. May be obtained.

In this case, the antenna is a linearly polarized antenna, and the polarization directions of the linearly polarized antennas in any two adjacent high-frequency communication units are different, and the polarization directions are horizontal polarization and vertical polarization. Polarization.
Alternatively, the antenna is a circularly polarized antenna, and the circularly polarized wave directions of the circularly polarized wave antennas in any two adjacent high-frequency communication units are different, and the circularly polarized wave direction is a left circularly polarized wave. , Right-handed circularly polarized waves.
The antenna may be a narrow beam antenna.

  The apparatus used for the method of identifying and detecting a vehicle with respect to the vehicle of the present invention includes a plurality of high-frequency communication units, a single-pole multi-throw switch, and a main communication control module, and the high-frequency communication unit includes a high-frequency communication module, An antenna electrically connected to the high-frequency communication module, wherein the antennas in the plurality of high-frequency communication units respectively perform high-frequency communication in different communication directions symmetrical to the center of the vehicle on a plane where the vehicle is located. Responsibly, the communication direction of the antenna of each high-frequency communication unit is different, each said high-frequency communication unit is switched between active mode and normal passive mode, when the high-frequency communication unit is in passive mode A nearby vehicle in a predetermined communication direction through the electrically connected antenna. Receiving the communication request, and when the high-frequency communication unit receives the communication request, the identification information is returned to the neighboring vehicle that has transmitted the communication request based on the communication direction of the antenna through the antenna that is electrically connected. Then, the communication main control module sequentially switches the plurality of high-frequency communication units to the active mode by the time-division polling method or the simultaneous communication method through the single-pole multi-throw switch, and the communication main control module changes to the active mode. The high-frequency communication unit is electrically connected to the antenna, the main communication control module sends a communication request via a communication direction of the electrically connected antenna, and the electrically connected antenna To obtain the identification information that is responded from the neighboring vehicle.

It is preferable that eight high-frequency communication units are provided, and the antennas in the eight high-frequency communication units perform high-frequency communication in eight communication directions symmetric with respect to the center of the vehicle on the plane where the vehicle is located.
The communication main control module is an RFID reader, the high-frequency communication unit includes a high-frequency communication module and an antenna, and the high-frequency communication module includes a tag IC of a high-frequency identification tag and a single-pole double-throw switch. The tag IC is electrically connected to the antenna through the single pole double throw switch when the identification information is stored in the tag IC and the high frequency communication unit is in a passive mode; When the unit is in the active mode, the communication main control module may be electrically connected to the antenna through the single-pole double-throw switch, and may disconnect the tag IC from the antenna. is there.

The information processing device may include an information processing device arranged in the vehicle, and the information processing device may calculate a distance between the vehicle and a nearby vehicle based on wireless signal analysis of identification information to be responded to.
In this case, the information processing device may determine the direction of the neighboring vehicle with respect to the vehicle based on the communication direction of the antenna receiving the response identification information or the content of the identification information.

ADVANTAGE OF THE INVENTION According to this invention, the exact positioning of the mutual positional relationship between the individual vehicles in an area | region can be implement | achieved, the safety control in the active of a vehicle can also be assisted, and if it mounts in an unmanned vehicle or an autonomous vehicle, Data necessary for driving can be provided.
In addition, although various types of transportation are various in various cities around the world, high-frequency communication modules mounted on vehicles are inexpensive, small in size, and easy to install. Unlike a typical automatic driving device, it is easy to be mounted on a large number of vehicles of various forms, and has a decisive effect on automatic driving within a certain distance at the end.

1 is a functional block diagram of a vehicle identification and detection device for a vehicle according to an embodiment of the present invention. FIG. 4 is a functional block diagram in a passive mode of the high-frequency communication unit according to the embodiment of the present invention. FIG. 3 is a functional block diagram in an active mode of the high-frequency communication unit according to the embodiment of the present invention. 1 is a plan view of a vehicle equipped with a plurality of high-frequency communication units according to an embodiment of the present invention. 1 is a plan view of a vehicle according to an embodiment of the present invention in a state where a vehicle identification and detection device is used for a vehicle. FIG. 11 is a functional block diagram of a vehicle identification and detection device for a vehicle according to another embodiment of the present invention.

The method for identifying and detecting a vehicle with respect to a vehicle according to the present invention includes the following steps: transmitting a high frequency signal from a neighboring vehicle in a plurality of different communication directions symmetric with respect to the center of the vehicle on a plane where the vehicle is located. Receiving a communication request to be transmitted to the vehicle based on the communication direction of the communication request received by the vehicle, and responding the identification information of the vehicle to a nearby vehicle that has transmitted the communication request with a high-frequency signal. Sending a communication request with a high-frequency signal by a time-division polling method or a simultaneous communication method in a plurality of different communication directions symmetrical to the center of the vehicle on a plane where the vehicle is located; and responding with a high-frequency signal from a neighboring vehicle Receiving the identification information, wherein the content of the identification information includes at least the vehicle information of the vehicle and the communication direction of the communication request received by the vehicle. Including the direction information, and travel parameter information of the vehicle.
Here, the plurality of different communication directions symmetric with respect to the center of the vehicle means that two communication directions forming a pair among the plurality of communication directions are symmetric with respect to the center of the vehicle.

  A preferred embodiment of the present invention is to receive a communication request transmitted by a high frequency signal from a neighboring vehicle in a plurality of different communication directions symmetric with respect to the center of the vehicle on the plane where the vehicle is located, and perform time-division polling. Or by simultaneous communication, sequentially send communication requests in a plurality of different communication directions, based on the radio signal analysis of the identification information responding from the nearby vehicle, calculate the distance between the vehicle and the nearby vehicle, Achieving accurate positioning of the mutual positional relationship between individual vehicles in the area can support safe control during active vehicle operation, or provide data necessary for automatic driving, thus ensuring safe driving. The effect of can be improved.

In the embodiment shown in FIGS. 1 and 3, eight high-frequency communication units for performing high-frequency communication in eight different communication directions are arranged on the vehicle. For convenience of explanation and understanding, high-frequency communication units in charge of eight different communication directions are indicated by numerals 1 to 8, respectively.
These high-frequency communication units 1 to 8 and their communication directions are 1-front, 2-left front, 3-left middle, 4-left rear, 5-forward, 6-right rear, and 7-right center, respectively. And 8-right front. It should be understood that these eight different communication directions are merely preferred embodiments of the present invention and are not limiting.

  A communication main control module 40 and eight high-frequency communication units 1 to 8 are arranged on a vehicle body. Each of the high-frequency communication units 1 to 8 is responsible for performing high-frequency communication with a nearby vehicle in a different communication direction, and the communication main control module 40 is electrically connected to the eight high-frequency communication units 1 to 8. Further, the communication main control module 40 can control each of the high-frequency communication units 1 to 8 to switch between the “active mode” and the “passive mode”.

  The high-frequency communication units 1 to 8 in the “passive mode” can receive a communication request transmitted by a high-frequency signal from a nearby vehicle in a communication direction in which the high-frequency communication unit is in charge, and transmit the communication request after receiving the communication request. The identification information of the present vehicle is responded to the nearby vehicle by a high frequency signal. The high-frequency communication units 1 to 8 switched to the “active mode” are used for transmitting a communication request by a high-frequency signal in a communication direction in which the high-frequency communication unit is in charge, and for receiving identification information responded by a high-frequency signal from a nearby vehicle.

In a preferred example, high-frequency communication is performed through high-frequency identification (Radio Frequency Identification, RFID) technology, in which the communication main control module 40 is basically an RFID reader (RFID Reader), and each of the high-frequency communication units 1 to 8 is A high frequency identification tag (RFID Tag) may be used. More preferably, the RFID reader and the high frequency identification tag share an antenna, and as a result, the installation cost of hardware can be further reduced.
The communication main control module 40 sends the above communication request mainly through the antenna shared with the high frequency identification tag, and the high frequency identification tag is used for reading the material by the RFID reader of the nearby vehicle in the “passive mode”. .
The RFID reader and the high-frequency identification tag can be replaced by another high-frequency communication technology, and the switching operation between the “active mode” and the “passive mode” can be realized. The RFID reader and the high-frequency identification tag described above are merely examples given for realizing the present invention, and the present invention is not limited thereto.

The method and the apparatus for identifying and detecting the vehicle with respect to the vehicle of the present embodiment switch only one of the eight high-frequency communication units 1 to 8 to the “active mode” in the operation mode of the time division polling during the operation period. Then, the remaining seven high-frequency communication units are switched to the “passive mode”.
In the simultaneous communication operation mode, the plurality of high-frequency communication units are selectively arranged to switch to the “active mode”.
In a preferred example, the eight high-frequency communication units 1 to 8 are normally set to be in a “passive mode”, and the main communication control module 40 is configured to operate the eight high-frequency communication units in a time-division polling or simultaneous communication operation mode. The high-frequency communication units 1 to 8 are switched to the “active mode”, and such switching operation is performed continuously and cyclically.

As shown in FIG. 2A, each of the high-frequency communication units 1 to 8 includes a high-frequency communication module 10 and an antenna 20.
The high frequency communication module 10 includes a tag IC 11 (Tag IC) of a high frequency identification tag (RFID Tag) and a single pole double throw switch 30. The tag IC 11 is electrically connected to the antenna 20 through the single pole double throw switch 30. Is done.
The antennas 20 of the eight high-frequency communication units 1 to 8 are each responsible for performing high-frequency communication with neighboring vehicles in different communication directions symmetrical with respect to the vehicle center on the plane where the vehicle is located. The communication main control module 40 and a plurality of high-frequency communication units 1 to 8 are arranged in a similar manner in a nearby vehicle.

Identification information (identification information) is recorded in the memory of the tag IC 11 of each of the high-frequency communication units 1 to 8, and the identification information includes at least the direction information of the communication direction assigned to the antenna 20 of each of the high-frequency communication units 1 to 8, and the high-frequency communication. Includes individual vehicle information of vehicles located in units 1 to 8 and traveling parameter information of the vehicle.
For example, since the communication direction in charge of the antenna 20 of the high-frequency communication unit 1 disposed in front of the vehicle body is front, the direction information recorded in the memory of the tag IC 11 of the high-frequency communication unit 1 is changed to “1- In front of you.
The individual vehicle information may be a vehicle type or a vehicle registration serial number, and the traveling parameter of the vehicle may be a vehicle speed or the like.

  As shown in FIG. 2A, the high-frequency communication module 10 is normally in the “passive mode”, and the single-pole double-throw switch 30 is normally electrically connected to the tag IC 11 and the antenna 20. In other words, it means that when any one of the high-frequency communication units 1 to 8 is in the “passive mode”, it receives a communication request from a nearby vehicle in a predetermined communication direction through the electrically connected antenna 20. , Any one of the eight high-frequency communication units 1 to 8 receives a communication request, and then transmits the communication request in a preset communication direction of the antenna 20 through the electrically connected antenna 20. Responds with identification information provided for the nearby vehicle to perform identification and detection.

As shown in FIG. 1, FIG. 2-1 and FIG. 2-2, the vehicle identification and detection device for the vehicle of the present embodiment includes eight high-frequency communication units 1 to 8, a communication main control module 40, A multi-throw switch (a single-pole, eight-throw switch 60 is used in this embodiment).
During the operation period, at least one of the eight high-frequency communication units 1 to 8 is in the “active mode”, and the rest are in the “passive mode”.
The communication main control module 40 sequentially switches the eight high-frequency communication units 1 to 8 to the “active mode” by the time-division polling method or the simultaneous communication method through the single-pole eight-throw switch 60. The communication main control module 30 is electrically connected to the communication main control module 40 and the antenna 20 (which temporarily disconnects the electric connection between the tag IC 11 and the antenna 20 in the original normal mode). By transmitting a communication request to the high-frequency communication units 1 to 8 of the neighboring vehicles through the electrically connected antenna 20, it is used to acquire identification information responding from the neighboring vehicles. In other words, during the operation of the vehicle identification and detection device with respect to the vehicle, the communication main control module 40 is electrically connected only to the antenna 20 of the single high-frequency communication unit 1 to 8 that has entered the “active mode”. Instead, the remaining seven high-frequency communication units are still in "passive mode".

  The communication main control module 40 is electrically connected to the antennas 20 of the eight high-frequency communication units 1 to 8 sequentially through the single-pole eight throw switch 60 by a time division polling method or a simultaneous communication method. A communication request is transmitted to the high-frequency communication module 10 of a nearby vehicle through the electrically connected antenna 20. The “sending communication request” means that the communication main control module 40 performs a high-frequency signal with the high-frequency communication module 10 of the nearby vehicle through the high-frequency signal, and transmits identification information of the nearby vehicle from the memory of the high-frequency communication module 10 of the nearby vehicle. It should be understood to be used to read or identify.

As an example, polarization separation is adopted between the antennas 20 of the high-frequency communication module 10 in any two adjacent high-frequency communication units 1 to 8, for example, in the case of a linearly polarized antenna, horizontal polarization and vertical polarization are respectively used. While it is necessary to employ polarized waves, in the case of a circularly polarized antenna, it is necessary to employ left-handed circularly polarized waves and right-handed circularly polarized waves, respectively.
As in the example shown in FIG. 3, the linearly polarized antennas of the four high-frequency communication modules 10, 1-front, 3-left middle, 5-positive and 7-right, are arranged in the horizontal direction ( The linearly polarized antennas of a total of four high-frequency communication modules 10 (shown by black rectangles), 2-left front, 4-left rear, 6-right rear, and 8-right front (see FIGS. 2-1 and 2-2) (See black square) and the circularly polarized antennas are similarly arranged for the same reason.
After the antennas 20 of the high-frequency communication units 1 to 8 in a certain communication direction enter the “active mode” through the installation of the linearly polarized antenna, the adjacent high-frequency communication units 1 to 8 mounted on the vehicle are connected. The identification signal can be prevented from being erroneously read, and the effect of preventing unauthorized reading can be obtained.

  As another example of the antenna 20, a narrow beam antenna is used, and the antenna 20 of each of the high-frequency communication units 1 to 8 is restricted to a predetermined communication direction, and an effect of similarly preventing illegal reading can be obtained.

Referring to FIG. 4 (also refer to FIG. 5), a method of identifying and detecting a vehicle with respect to the vehicle of the present invention and a mode of using the apparatus will be described.
For convenience of explanation, alphabets displayed on the roof of the vehicle are given as vehicle organization numbers (A to I), and the numbers of the high-frequency communication units 1 to 8 of each vehicle are expressed as “vehicle organization number + numeric number of high-frequency communication unit ( 1-8) ".
For example, the serial number of the high-frequency communication unit responsible for performing high-frequency communication in the forward direction on the vehicle A is A1, and the serial number of the high-frequency communication unit responsible for performing high-frequency communication on the vehicle E in the middle right direction is E7. .
Hereinafter, a function of avoiding the illegal reading described above with the most typical vehicle E as an example will be described. In the figure, when the high frequency communication module is indicated by a black rectangle, the black rectangle indicates that the antenna 20 of the high frequency communication units 1 to 8 is a horizontally polarized antenna, while the black rectangle indicates the high frequency communication unit. 1 to 8 indicate that the antennas 20 are vertically polarized antennas.

  Referring to Table 1 below, mutual identification and detection are performed between the vehicle E and other vehicles adjacent thereto through the cooperative operation of the plurality of high-frequency communication units 1 to 8 and the communication main control module 40. The situation to be performed will be described.

  The communication direction of the antenna 20 of the high-frequency communication unit E1 of the vehicle E is the forward direction, and is used for detecting the vehicle in front of the vehicle E. When the high-frequency communication unit E1 enters the “active mode”, it can be effectively identified. Is a high-frequency communication unit B5, which can be identified with a certain probability includes the high-frequency communication units A5 and C5.

  The communication direction of the antenna 20 of the high-frequency communication unit E2 of the vehicle E is the front left direction, which is used to detect the vehicle on the left front. When the high-frequency communication unit E2 enters the “active mode”, it can be effectively identified. , And the high-frequency communication units A6 that can be identified with a certain probability include the high-frequency communication units B4 and D8.

  The communication direction of the antenna 20 of the high-frequency communication unit E3 of the vehicle E is the middle left direction, which is used for detecting the vehicle on the left side. When the high-frequency communication unit E3 enters the “active mode”, it can be effectively identified. And the high-frequency communication unit D7.

  The communication direction of the antenna 20 of the high-frequency communication unit E4 of the vehicle E is the rear left direction, which is used to detect the vehicle at the rear left. When the high-frequency communication unit E4 enters the "active mode", it can be effectively identified. Is a high-frequency communication unit G8, which can be identified with a certain probability includes the high-frequency communication units D6 and H2.

  The communication direction of the antenna 20 of the high-frequency communication unit E5 of the vehicle E is the front-rear direction, which is used to detect the vehicle in the front-rear direction. When the high-frequency communication unit E5 enters the “active mode”, it can be effectively identified. Is a high-frequency communication unit H1, which can be identified with a certain probability includes the high-frequency communication units G1 and I1.

  The communication direction of the antenna 20 of the high-frequency communication unit E6 of the vehicle E is the right rear direction, which is used for detecting the right rear vehicle. When the high-frequency communication unit E6 enters the “active mode”, it can be effectively identified. Is a high-frequency communication unit I2, which can be identified with a certain probability includes the high-frequency communication units F4 and H8.

  The communication direction of the antenna 20 of the high-frequency communication unit E7 of the vehicle E is the middle right direction, which is used to detect the vehicle on the right side. When the high-frequency communication unit E7 enters the "active mode", it can be effectively identified. And the high-frequency communication unit F3.

  The communication direction of the antenna 20 of the high-frequency communication unit E8 of the vehicle E is the front right direction, which is used to detect the vehicle on the right front. When the high-frequency communication unit E8 enters the "active mode", it can be effectively identified. , And the high-frequency communication unit C4, which can be identified with a certain probability include the high-frequency communication units B6 and F2.

  4, when the high-frequency communication module 10 in the high-frequency communication unit E1 of the vehicle E receives the identification information of the high-frequency communication module 10 in the high-frequency communication unit B5, Based on the direction information in the identification information, it indicates that there is a nearby vehicle ahead.

The apparatus for identifying and detecting a vehicle with respect to the vehicle of the present invention further includes an information processing device 50 (see FIG. 1). Distance can be calculated.
When the high-frequency communication unit E1 of the vehicle E receives the identification information of the high-frequency communication module 10 in the high-frequency communication unit A5 of the vehicle A, the high-frequency communication unit E2 of the vehicle E also changes the high-frequency communication module 10 in the high-frequency communication unit A6 of the vehicle A. After receiving the processing and calibration of the information processing device 50 based on the direction information in the identification information returned from the high-frequency communication module 10 in the high-frequency communication unit A5 and the high-frequency communication unit A6, It is possible to determine that there is a nearby vehicle A to the front left of the vehicle E and its relative distance.

Referring to FIG. 5, another embodiment in which the method and the apparatus for identifying and detecting a vehicle with respect to the vehicle of the present invention are applied to an unmanned vehicle or an automatic driving system will be described.
In this embodiment, similarly to the above-described embodiment, a plurality of high-frequency communication units 1 to 8 for performing high-frequency communication in different communication directions are arranged on the body of the vehicle. Can respond to a communication request from a nearby vehicle by providing the identification information of the vehicle to the nearby vehicle that has sent the communication request. The vehicle can also transmit communication requests in different directions through the high-frequency communication modules 10 in the plurality of high-frequency communication units 1 to 8 arranged in the vehicle by a time-division polling method or a simultaneous communication method. By performing high-frequency communication with a nearby vehicle, identification information of the nearby vehicle can be obtained. Thereafter, through processing of the information processing device 50 of the vehicle, for example, any one of information such as the direction and distance of an approaching vehicle is obtained. One or a combination thereof can be obtained.

  In another embodiment, the speed of a nearby vehicle (for example, a vehicle in front of the vehicle) can be obtained through the system of the on-vehicle radar 73, and the position information of the vehicle location can be obtained through the GPS system 70 of the vehicle. This information is then provided to an unmanned vehicle control system 71 located on the vehicle, or uploaded to the rear vehicle control center 72 via a mobile communication network to provide accurate information on the mutual positional relationship between the individual vehicles in the area. In addition to achieving accurate positioning, it can also support active safety control of the vehicle, and can provide data required for unmanned vehicles or automatic driving.

  The foregoing merely shows preferred embodiments of the present invention, and the scope of the present invention is not limited to these embodiments, and any changes and modifications that do not depart from the scope of the claims are set forth in the appended claims. Included within the scope of the invention.

1-8: High frequency communication unit 11: Tag IC
10: High-frequency communication module 20: Antenna 30: Single-pole double-throw switch 40: Communication main control module 50: Information processor 60: Single-pole 8-throw switch 70: GPS system 71: Unmanned vehicle control system 72: Vehicle control center 73: Automotive radar

Claims (16)

Receiving a communication request transmitted by a high-frequency signal from a neighboring vehicle in a plurality of different communication directions symmetrical to the center of the vehicle on a plane where the vehicle is located;
Based on the communication direction of the communication request received by the vehicle, responding the identification information of the vehicle with a high-frequency signal to a nearby vehicle that sent the communication request,
Sending a communication request with a high-frequency signal by a time-division polling method or a simultaneous communication method in a plurality of different communication directions symmetrical to the center of the vehicle on a plane where the vehicle is located;
Receiving identification information responsive to a high-frequency signal from a nearby vehicle;
The content of the identification information is at least individual vehicle information of the vehicle, direction information of the communication direction of the communication request received by the vehicle, and includes travel parameter information of the vehicle, Vehicle identification and detection methods. Receiving a communication request transmitted by a high frequency signal from a neighboring vehicle in eight different communication directions symmetric with respect to the center of the vehicle on a plane where the vehicle is located;
Transmitting a communication request in the eight different communication directions sequentially by a time-division polling method or a simultaneous communication method.   The method of claim 1, further comprising calculating a distance between the vehicle and a nearby vehicle based on a radio signal analysis of the response identification information.   The method according to claim 1, further comprising: determining a direction of a nearby vehicle with respect to the vehicle based on a communication direction in which the identification information is received or a content of the identification information. Identification and detection methods. The communication request is received from different communication directions respectively through a plurality of high-frequency communication units, the high-frequency communication unit includes a high-frequency communication module, and an antenna electrically connected to the high-frequency communication module. The communication direction of the antenna of the high-frequency communication unit is different, and each of the high-frequency communication units is switchable between an active mode and a passive mode in a normal state. When the high-frequency communication unit is in the passive mode, After receiving a communication request from a nearby vehicle in a predetermined communication direction through the antenna that is electrically connected, and receiving the communication request by the high-frequency communication unit, communication of the antenna through the antenna that is electrically connected is performed. Responds to the nearby vehicle that sent the communication request based on the direction. ,
A plurality of the high-frequency communication units are switched to the active mode by a time-division polling method or a simultaneous communication method using the communication main control module, and the communication main control module electrically connects the antenna of the high-frequency communication unit in the active mode to the antenna. Connected, the communication main control module sends a communication request via a communication direction of the electrically connected antenna, and transmits identification information responded from a nearby vehicle through the electrically connected antenna. The method for identifying and detecting a vehicle with respect to the vehicle according to claim 1, wherein the method is obtained.   The antenna is a linearly polarized antenna, and the polarization directions of the linearly polarized antennas in any two adjacent high-frequency communication units are different, and the polarization directions are horizontal polarization and vertical polarization. The method for identifying and detecting a vehicle with respect to the vehicle according to claim 5, comprising:   The antenna is a circularly polarized antenna, and the circularly polarized wave directions of the circularly polarized wave antennas in any two adjacent high-frequency communication units are different from each other. The vehicle identification and detection method for a vehicle according to claim 5, wherein the method includes circularly polarized waves.   The method of claim 5, wherein the antenna is a narrow beam antenna. An apparatus used for a method of identifying and detecting a vehicle with respect to the vehicle according to claim 1, comprising: a plurality of high-frequency communication units; a single-pole / multi-throw switch; and a main communication control module.
The high-frequency communication unit has a high-frequency communication module and an antenna electrically connected to the high-frequency communication module,
The antennas in the plurality of high-frequency communication units are responsible for performing high-frequency communication in different communication directions symmetric with respect to the center of the vehicle on the plane where the vehicle is located, and the communication direction of the antenna of each high-frequency communication unit is different. Each of the high-frequency communication units is switched between an active mode and a normal passive mode, and when the high-frequency communication unit is in the passive mode, the high-frequency communication unit is in a predetermined communication direction through the electrically connected antenna. Upon receiving a communication request from the vehicle and the high-frequency communication unit receives the communication request, based on the communication direction of the antenna via the electrically connected antenna, transmits identification information to a nearby vehicle that has transmitted the communication request. Respond,
The communication main control module sequentially switches a plurality of the high-frequency communication units to the active mode by the time-division polling method or the simultaneous communication method through the single-pole multi-throw switch, and the communication main control module is in the active mode. The communication main control module is electrically connected to the antenna of the high-frequency communication unit, sends a communication request through a communication direction of the electrically connected antenna, and transmits a communication request through the electrically connected antenna. The apparatus used in the method for identifying and detecting a vehicle with respect to the vehicle according to claim 1, wherein identification information responding from the vehicle is acquired.   Eight high-frequency communication units are provided, and the antennas in the eight high-frequency communication units are each responsible for performing high-frequency communication in eight communication directions symmetrical to the center of the vehicle on the plane where the vehicle is located. 10. The device according to claim 9, wherein:   The communication main control module is an RFID reader, the high-frequency communication unit includes a high-frequency communication module and an antenna, and the high-frequency communication module includes a tag IC of a high-frequency identification tag and a single-pole double-throw switch. The tag IC is electrically connected to the antenna through the single pole double throw switch when the identification information is stored in the tag IC and the high frequency communication unit is in a passive mode; When the unit is in the active mode, the main communication control module is electrically connected to the antenna through the single pole double throw switch, and disconnects the electrical connection between the tag IC and the antenna. The device according to claim 9, characterized in that it is characterized by:   The antenna is a linearly polarized antenna, and the polarization directions of the linearly polarized antennas in any two adjacent high-frequency communication units are different, and the polarization directions are horizontal polarization and vertical polarization. Apparatus according to claim 9, characterized in that it comprises:   The antenna is a circularly polarized antenna, and the circularly polarized wave directions of the circularly polarized wave antennas in any two adjacent high-frequency communication units are different from each other. The apparatus of claim 9, comprising circularly polarized waves.   The apparatus according to claim 9, wherein the antenna is a narrow beam antenna.   10. The information processing device according to claim 9, further comprising an information processing device arranged in the vehicle, wherein the information processing device calculates a distance between the vehicle and a nearby vehicle based on a radio signal analysis of the identification information to be responded. The described device.   16. The apparatus according to claim 15, wherein the information processing unit determines a direction of a nearby vehicle with respect to the vehicle based on a communication direction of the antenna receiving the response identification information or a content of the identification information. .

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