Design And Implement Of Assistant System In Multi-function Road Information Collection Vehicle

In recent years, the more and more people paid close attention to the high-speed, the security and the comfort level in the road journey, but in the multitudinous influence factor, the roads information importance was more and more prominent. The roads information contains the dynamic data message and the static data message. At present, some static data such as traffic facilities complete degree, mainly obtains by the artificial site survey or the appraisal, time-consuming and laborious, the scene operation is unsafe, and the results vulnerable to man-made factors. Therefore, domestic and foreign has conducted certain research on the automatically processing the information of traffic facilities, and made great progress in the system development. Along with the mileage of highway is increasing, the road basic information is gradually increasing, its maintenance is also arduous day after day, the traditional manual testing has been unable to meet the development of highway maintenance needs. Therefore, in order to highly effective, accurate, safe gather traffic facilities information, using the computer technology, the sensor technology, the data processing technology and the data bank technology to development road information system has practical significance.This dissertation focuses on the support system of road information acquisition vehicle analysis, including the road information data demand analysis, the power supply and control system design of vehicle, the sensor connection circuit design, the software connection design, the distance and the position system design, the sensor-calibration of system initialization and so on. The arm is to collect road information of Road facilities information, Road Roughness, Track, Form, and Traffic Sign and so on. The main research is as follows:First carries on the introduction of the road information acquisition subsystem requirement principles, analysis of road information acquisition subsystem relationship, determination of road information acquisition subsystem data form and road information acquisition support system data form. And through to the design of the power supply control system, the sensor interface circuit, Fan control circuit to build road information acquisition platform.At next the introduction of the main process of the software interface technology in the object-oriented software development, Through to the analysis of network structure, functional requirements, data collection time sequence, system architecture design to transfer the data. Through to the introduction of the client/server Communication mode and the TCP timing change to design the protocol and transfer the data and command.At last, with the established system initialization calibration platform, the designed scheme of experiment and the data error analysis of the experiment, there is a study on the system initialization calibration. The experiment result indicates that, the designed Assistant System of Multi-function Road Information Collection Vehicle is feasible, and the research and the development of the overall system are reasonable and practicable.