Urban intelligent traffic information system based on optimal path
An optimal route, intelligent transportation technology, applied in the field of urban intelligent transportation information system
Inactive Publication Date: 2010-08-04
四川大学锦江学院 +2
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Problems solved by technology
However, there is currently no advanced means combining RFID (radio frequency identification) technology, electronic information technology, network communication technology, and computer technology to implement remote speed measurement on road vehicles, and remotely and automatically count the traffic flow of all road sections, and pass the data through the central processing unit. Calculate an optimal route that takes the least time from the origin to the destination to solve the problem of urban traffic congestion
Method used
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Embodiment 1
[0023] Embodiment 1: The user installs the vehicle information receiving device on the car, when the user sends a service request to the data central processing system through the terminal service equipment on the vehicle information receiving device, the service request information is transmitted through the Internet or GSM, CDMA, 3G wireless network To the data central processing system, the data central processing system performs the following steps:
[0024] 1. The data central processing system analyzes all reachable paths from the departure point to the destination.
[0025] 2. The Floyd-Warshall algorithm calculates an optimal path from the departure point to the destination with the least time consumption.
[0026] The specific execution method of said step 2: when the data central processing system receives N instantaneous velocities, then the average passing speed of the whole section of road is V=∑Vi / N, and the length of the whole section of road is S, which can be ...
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The invention discloses an urban intelligent traffic information system based on an optimal path, relating to a method for realizing an optimal travel path and belonging to the field of intelligent traffic. The invention applies a RFID (Radio Frequency Identification) technology, an electronic information technology, a network communication technology and a computer technology to enable a driver to avoid a traffic jam road section and reach a destination with relative little time. The urban intelligent traffic information system comprises a remote vehicle identification device (consisting of a data storage device, a communication interface device and a wireless radiofrequency transmitter), a data central processing system and a vehicle information receiver (consisting of a receiving and sending module). The collected instantaneous speed of a vehicle is transferred to the data central processing system by remote vehicle identification devices installed at both sides of a road, and the optimal path with least time consumption is calculated by the system and is transferred to the vehicle information receiver through a wireless network. The invention has wide application prospect in the intelligent traffic field.
Description
technical field [0001] The patent of the present invention belongs to the field of intelligent transportation, and specifically relates to a method for realizing an optimal path urban intelligent transportation information system, through which an optimal path from a starting point to a destination can be calculated. Background technique [0002] Food, clothing, housing and transportation are the four major elements of human life. After having enough food and clothing, good home conditions and travel conditions become an important symbol of the quality of life. [0003] With the rapid progress of social civilization and economy, people's living standards are also increasing day by day, and the demand for private cars is increasing, which makes the number of cars in various places increase rapidly. However, the development level of urban road traffic and the current utilization of urban road traffic However, the management methods are far behind the development speed of car o...
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IPC IPC(8): G08G1/00G08G1/052G08G1/09G08G1/0968
Inventor 王亨姚衡李科杨海军任倩黄世麟喻星晨常晶晶伍良富李炳法任学亮唐文宇
Owner 四川大学锦江学院