Research And Application On The Technology Of Data Fusion Used In The Road Test System

With China’s rapid economic development, urbanization is accelerating. With various modes of transport to facilitate people’s travel, frequent traffic accidents have brought huge losses to people’s lives and property. In order to improve the level of the driver’s driving, solve the outstanding problems in driving test. Road Test intelligence is imperative for a fair and just test. Intelligent road test is that the car in the exam candidates by adding a variety of motion sensors, vehicle location, status monitoring, when the candidates in the examination process of some kind of illegal operation, the road test system should be able to judge based on violations of the correct operation items In order to judge the candidates operating by the information collected by sensors, Data fusion technology must be used.Currently, data fusion technology is still in the research stage, and there is no unified definition and framework, we must be based on the different applications use different data fusion methods. Limited to the current level of knowledge and technology, road test system can determine that not all items are intelligent judge, and only some of the items can be judged judge. Being able to intelligently judge the test items judged related to sensor technology, data fusion technology, interface technology, etc., and data fusion techniques is the most important, it is responsible for information processing, analysis, and draw the end result is that the entire Road test the system evaluation of the brain. How data fusion judge the road items is becoming more important. It started around this subject of this article.The background of this paper is the project designed and developed for "road test monitoring system," in "national road safety action plan". The Car-side System is focused as the subsystem.Paper through the theory of data fusion technology research, analysis of the data fusion structure, function models, classification methods, focusing on the data fusion algorithms, and through the comparison of various algorithms to analyze road test the characteristics and needs, proposed the production rules as a way of data fusion in road test system. Through further researching on the road test, I determine the specific ways of data fusion, propose data fusion rule database building program. This collected data can be matched with the fusion database, and to be decision-making.Data fusion method of production rules applied to the subsystem of the "road test monitoring system", which can make the right decision according to the information collected by sensors.The practical application of the system demonstrate that the system which using the fusion method works well and achieves the desired purpose.