The Parameter Model Method Of Picking Up The Automobile Audio Signal Information

The basic of highway intelligent management is the traffic information sampling system,and the most important technology of the traffic information sampling system is traffic streamchecking and measuring technology. The composition of the highway traffic stream issingleness comparatively, namely, only composed with motor vehicles. Thus the key of trafficstream checking and measuring is vehicle checking and measuring, vehicle speed judging andvehicle model identifying. Because the highway charging system is the important componentof highway management system, the vehicle model identifying is very important for thetraffic stream checking and measuring. In automatic charges system, the car type identifyingoccupies the very important position automatically, because it is one of the important factorsdeciding the charging standard. Therefore it is very important to develop a vehicle modelidentifying system fitting our country with cheap price. The paper takes the sound signals of vehicles and shaking signals of ground, signalacquisition, blend identifying as main line. Taking on the trial data collecting on the scene asthe foundation, the parameter model as analytical means, we thoroughly study the technologyof vehicle identifying according to the sound signals of vehicles and shaking signals ofground. The purpose of the paper is to study the processing technique of the vehicle sound andshaking signals, making use of the parameter model analysis theories, the characteristic of thesignal with vehicle moving under the condition that loading capacity, driving speed, road faceeach not same. It is preparing for the study of traffic stream signals, for raising the theoriesfoundation and the fulfillment foundations of traffic stream being inspected. At analyzing the superhighway up the characteristic of the automobile audio frequencysignal, we choose to use the same rank number of model to carry on the analysis withdifferent two kinds of circumstances alike soon to the car. The result enunciation is that car issoon same and car soon hours can carry on the discretion to the big and small car type. It canalso pick-up the characteristic index of each different types (or speeds) of cars. It is clear thatthe parameter model method is applicable to the highway traffic information to discriminateor judge the vehicles types. It is also clear that the parameter model method is applicable tothe analysis of the vehicles carrying the heavy goods. Thus, using the parameter modelmethod to analyze the vehicles types and carrying capacity load of vehicles is viable.