The Research Of ITS Signal Fuzzy Logic Control Subsystem

Along with the quick development of the economy and the fast fierce increment of the vehicle, the transportation problem is serious day by day. The transportation system is random, complexity, indetermination system, so the research of transportation can't build up very accurate mathematics model. The transportation system has to ask for help from fuzzy logic control, nerve network and GA way etc. Intelligence control theories, just probably work out transportation problem. Therefore, establishment valid of the intelligence transportation will be the key which work outs a transportation problem currently, ITS adopts information technique, calculator technique, automatic control technique etc. various forerunners of technique means, carry on effectively reasonable control to the transportation system. It constitutes from some subsystems, passing ITS signal control to carry on a reasonable leading and control to the transportation, alleviating transportation to hustle, reducing the tail spirit emissions, voice pollution and the energy consume, and can provide in time transportation condition information and increase traffic safety. Abroad, Japan, the United States, EU all built up correspond organizations to carry on study and obtained some results. Our country government section is also early cognizant to arrive the important and strategic meaning of intelligence transportation, adopt a series of strength measure to the intelligence transportation study. The signal control of cross is the foundation of ITS signal control. Because cross is the basic unit of road network. It has very important function to traffic signal control and it is the key of traffic safety. Making use of forerunner cross control theories and designing to make valid intelligence transportation system, will alleviate transportation to hug and have very important meaning to the traffic safety.This paper aims at the shortage of the existing traffic signal control, putting forward the new method of cross traffic signal control and only set one feeling machine nearby the car line and carry on judgment through three fuzzy logic controls. The fuzzy logic control is an importance part of intelligence control, the fuzzy logic control theories study and the engineering apply develop very quickly. The fuzzy logic control technique has a lot of advantages, it doesn't need accurate mathematics model, and controls speed quickly, and it is similar to the person's judgment. The fuzzy logic control oneself have estimate function. The fuzzy logic control rule comes from the expert's experience knowledge. Because of the above characteristics of the fuzzy logic control, this paper selects it to put up traffic signal control.The paper combines together fuzzy logic control and tiny controller technique, putting forward the new method of cross traffic signal control and only sets one feeling machine nearby the car line and carries on judgments through three fuzzy logic controls. Passing MATLAB designs, result elucidates that the design is valid. The paper mainly includes several aspects as follows:Firstly, according to existing ITS control shortage, put forward a kind of new arithmetic of ITS signal fuzzy logic control and proves the validity of the method. Secondly, it designs the hardware examination electric circuit using the technology of the MSC1214 etc.Thirdly, under the foundation of the hardware design in the paper, carries on the mold piece of the software design, and gives each mold piece frame. Finally, it concludes the work of full paper, and points out the further work.