Dynamic road segment division based vehicle route guidance method

A vehicle path and road section technology, applied in the field of Internet of Vehicles technology and wireless communication, can solve the problems of unsatisfactory optimal path, non-uniform vehicle speed without considering the distribution of vehicles, etc.

Inactive Publication Date: 2013-10-02
BEIHANG UNIV
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Problems solved by technology

[0004] At present, using the floating car technology to collect the location information of road network vehicles, the existing method of establishing road network connectivity graphs uses the average speed of vehicles collected in each road section as the weight of this road section, without taking into account road sections (especially The uneven distribution of vehicles on the long road section) and the difference in vehicle speed in different areas of the road section, the optimal path calculated by such a road network connectivity graph is not ideal

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  • Dynamic road segment division based vehicle route guidance method
  • Dynamic road segment division based vehicle route guidance method
  • Dynamic road segment division based vehicle route guidance method

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Embodiment Construction

[0044] The present invention is a vehicle route guidance method based on the dynamic division of road sections, such as figure 1 As shown, it is realized through the following steps:

[0045] Step 1: The driving vehicle obtains its own current state information (location information, speed information) and destination information, and sends them to the traffic information service center;

[0046] Such as figure 1 As shown, the driver inputs the destination in the human-computer interaction system. At this time, the wireless communication device establishes a socket communication with the traffic information center server based on the TCP / IP protocol. After the socket communication is established, every time T1 (1 minute or according need to be set), the on-board control unit obtains the latitude and longitude information of the destination in the human-computer interaction system, and the current position information (latitude and longitude information) and speed information ...

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Abstract

The invention discloses a dynamic road segment division based vehicle route guidance method, which is characterized in that a dynamic rod network connected graph is built through dynamic road segment division for the purpose of searching optimal path search and realizing dynamic navigation. The method specifically comprises the following steps: first, acquiring vehicle real-time information through a vehicle networking technology by the traffic center, and utilizing an algorithm of Density-based Spatial Clustering Of Applications With Noise (DBSCAN) to regularly and dynamically divide the regional rods, so as to generate the dynamic rod network connected graph; secondly, sending the position and destination of a vehicle itself to a traffic information center for asking for the optimal path; and finally, generating the optimal path on the dynamic rod network connected graph through utilizing a shortest path algorithm by the traffic information center according to the position and destination of the vehicle, and sending the information to the vehicle and realizing path guidance. The method has the advantages that the generated dynamic rod network connected graph which is accurate and real-time can provide the optimal path guidance for a traveler, thereby alleviating city traffic jam and improving running efficiency.

Description

technical field [0001] The invention relates to the field of vehicle networking technology and wireless communication technology, in particular, it is a vehicle route guidance method based on dynamic division of road sections. Background technique [0002] In recent years, my country's transportation industry has flourished, and the number of residents' car ownership has increased significantly. The subsequent urban road congestion has occurred frequently, directly causing problems such as fuel consumption, air pollution, and a large waste of travel time for travelers. Therefore, the realization of intelligent and dynamic route guidance has become a hot topic of concern to the transportation department and travelers. [0003] With the rapid development of wireless communication and mobile computing technology, network mobile terminals have been extended to vehicle-mounted platforms. Based on advanced wireless communication technology and Internet of Vehicles technology, eff...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/0969G08G1/127
Inventor 田大新原勇王云鹏段续庭周建山王建鲁光泉余贵珍鹿应荣
Owner BEIHANG UNIV
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