Dynamic inducing method based on integral equation
An integral equation and dynamic technology, applied in the induction field of urban intelligent traffic management, can solve the problems that dynamic prediction cannot be truly realized, and achieve the effect of improving road utilization, high accuracy and performance, and objective effect
Inactive Publication Date: 2010-11-24
陈新凯
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the function that current other induced traffic technologies can not really realize the dynamic prediction, and provide a dynamic induction method based on integral method that can effectively overcome this defect
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[0020] figure 2 It is a structural schematic diagram of a hypothetical driving section. In order to realize the present invention, the present invention is equipped with a monitoring system at each intersection (A intersection, B intersection, C intersection, D intersection, E intersection, F intersection and G intersection) of the driving section. Vehicle monitoring device for vehicle speed and vehicle count. According to actual needs, the vehicle monitoring can be realized by using floating car, video or ground induction coil. The so-called floating cars refer to the vehicles that are equipped with mobile positioning equipment and actually drive on the intersection of the road section. Their speed is the most real average speed on the road section. The video is analyzed through the image collected by the fixed camera, and the traffic flow and instantaneous speed at the measurement point can be obtained. The ground induction coil is a group of induction coils buried under ...
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The invention discloses a dynamic inducing method based on an integral equation, which is characterized by mainly comprising the following steps: a vehicle monitoring plant acquires real-time traffic data on all road sections; and a computer works out the vehicle speed within a short time (delta t) in future on any road section according to the acquired real-time traffic data by utilizing a surrounding integral equation V(x,y,t+delta t)= the integral of <L>g(x,y,t)dldt+R(x,y,z)dxdydt, wherein g(x,y,t) is a parametric function, and R(x,y,z) is a modification function. In the invention, the surrounding integral equation is used for calculating the dynamic inducement of real-time data, therefore, the accuracy is very high. In addition, the inducing process is the optimal scheme, which is automatically derived from global integrated information evaluation by the computer, and the induction ratio commands and other commands which are correspondingly adopted. Therefore, the invention is applicable to the whole city and has very objective effects.
Description
technical field [0001] The invention relates to an induction method for urban intelligent traffic management, in particular to a dynamic induction method based on an integral equation. Background technique [0002] Dynamic guidance traffic technology is the most core technology in urban intelligent traffic management. It is mainly used to more accurately predict traffic data in the future time period, and then realize the function of traffic guidance in real time. At present, this technology has not been reported in China, and it has only been used abroad. figure 1 It is a schematic diagram of the most common driving section at present. For the sake of illustration, it is assumed that travelers need to go from point A to point E through several intersections B, C, and D. The most difficult key to dynamic induction is to achieve dynamic prediction. From point A At the time of departure, we can know the current driving speed on the roads of AB, BC, CD, DE, etc., and it seems ...
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IPC IPC(8): G08G1/09G08G1/08
Inventor 陈新凯
Owner 陈新凯