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A human-vehicle-road information interaction system and method based on intelligent transportation

A technology of intelligent transportation and information interaction, applied in the field of human-vehicle-road information interaction system based on intelligent transportation, can solve the problems of occupying space in the car, easy to fail, and limited application, achieve convenient supervision, and overcome inconvenience in use. , the real-time effect of information interaction

Inactive Publication Date: 2019-05-24
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some defects in this method, for example: because the transmission distance of the passive RFID wireless communication protocol is too limited, generally no more than 20 meters, it is difficult for the driver to receive traffic information and respond accordingly in such a short distance
Another example: the life of active RFID devices is limited by battery capacity and life, and the cost is high, which greatly limits its application
Using the RFID communication solution, it is necessary to place an RFID reader inside the vehicle, which will take up space in the vehicle and cause inconvenience in use
[0003] In addition, in terms of Internet vehicles and mobile phone-car remote interactive communication, there is now a technology to realize in-vehicle information services through the LTE cellular mobile network. At present, some smart cars such as SAIC Roewe RX5 can realize the connection between vehicles and mobile phones through the Internet of Vehicles. When entering the LTE cellular mobile network, the mobile phone is used to operate the car to achieve vehicle control and view the basic information of the vehicle. Easy to fail

Method used

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  • A human-vehicle-road information interaction system and method based on intelligent transportation
  • A human-vehicle-road information interaction system and method based on intelligent transportation
  • A human-vehicle-road information interaction system and method based on intelligent transportation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Provide the driver of the vehicle driving in the direction of 45° east by north with the traffic sign information of "sharp left turn" ahead, and the location coordinates of the road sign are 100.00° east longitude 50.00° north latitude;

[0080] The driver's mobile phone Bluetooth in the driving vehicle receives the data and comprehensively analyzes and processes the data;

[0081] In this way, the mobile phone Bluetooth of the driver of the car driving to the east and north receives the information and displays the words and signs of "sharp left" on the screen, and plays the voice; the driver of the car driving in other directions receives the information via Bluetooth, But will not prompt. And once the Bluetooth of the mobile phone receives the signal source coordinate information, it will display the position of the signal source (ie street sign) in the map in the mobile phone application. At the same time, the information read by the body diagnosis system, includi...

Embodiment 2

[0083] Judging the driving direction of the vehicle and whether it violates the rules at the intersection.

[0084] Such as Figure 5 In the intersection shown in the scene, each road is a double carriageway, and the roadside device is placed in the center of the road. The scheme for judging the driving direction of the vehicle is as follows: Figure 6 Shown below:

[0085] (1) When the vehicle enters a road intersection, the on-board XBee device sends the vehicle information (including license plate number, vehicle speed, etc.) read by the vehicle body diagnostic system to the roadside device A through ZigBee communication, and the roadside device A reads and Record the relevant information of the vehicle, and record the moment when the vehicle passes the roadside device, and at the same time, detect the state of the signal light at this time through the signal control system;

[0086](2) During one cycle of the signal light, all passing vehicles in other lanes in various d...

Embodiment 3

[0090] On the Panshan Highway, the U-shaped bends are used to remind passing vehicles.

[0091] Such as Figure 7 In the scene shown, there is a U-shaped curve somewhere on a winding mountain road. If the driver does not know the situation in advance and slows down to prepare for the turn, accidents will easily occur; at the same time, if two vehicles are driving in the opposite direction, accidents will easily occur here crash. Install the roadside device at the outer edge of the U-shaped curve. In order to avoid the above two accidents, the design scheme is as follows: Figure 8 Shown below:

[0092] (1) Place the roadside device at the corner of the U-shaped bend, and code the location coordinates of the device and the information of "U-shaped bend here" and send it to the environment. The on-board XBee device in the vehicle that enters the communication range of the roadside device receives this information, and at the same time, the mobile phone calculates the distance...

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Abstract

The invention discloses a people-vehicle-road information interaction system based on intelligent transportation. The system comprises a roadside device which is mounted at a road side and is connected with an external cloud server; a vehicular device which is arranged in a vehicle, is used for carrying out information receiving and sending with the roadside device through a zigbee protocol and is connected with a vehicular body diagnosis system; a mobile phone auxiliary device which is connected with the vehicular device wirelessly through the zigbee protocol; and a mobile phone communication terminal which is connected with the mobile phone auxiliary device and the vehicular device wirelessly through Bluetooth. According to the information interaction system provided by the invention, through adoption of a zigbee-Bluetooth communication protocol, long-distance transmission can be carried out without being limited by the fact of whether a honeycomb mobile network signal exists or not. The invention also provides a people-vehicle-road information interaction method based on intelligent transportation. Through determination of the frequency lambda of sending information to the vehicular device by the roadside device and the frequency k of sending the information to the roadside device by the vehicular device, the information interaction is real-time and efficient.

Description

technical field [0001] The present invention relates to the technical field of intelligent transportation vehicle-road communication infrastructure, and more specifically, the present invention relates to a human-vehicle-road information interaction system and method based on intelligent transportation. Background technique [0002] Existing vehicle-road communication devices are mainly based on radio frequency identification technology (RFID). By providing roadside information (mainly traffic signs or signal lights) with an ID and a radio frequency identification transmitter capable of broadcasting its ID, the RFID on the vehicle The reader reminds the driver of the corresponding roadside information so as to realize the process of transmitting the roadside information to the vehicle. There are some defects in this method, for example: because the transmission distance of the passive RFID wireless communication protocol is too limited, generally no more than 20 meters, it i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/3822H04L29/08H04B5/00
CPCH04B1/3822H04B5/0025H04L67/12
Inventor 许楠王嘉伟初亮杨志华郭建华郭崇赵迪
Owner JILIN UNIV
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