Design Of Communication System & Manage Interface For Multi-Field Vehicle Stake Test System

With the rapid development of the society and the improving level of people's life, there are amount of traffic for use and the number of driver is increasing. Vehicle Stake Test Systems are spreading all over the country. They have some disadvantages, for example: most of the time; one set of Vehicle Stake test system only operates one field. For the training teams who have more then two fields, if one field requires installing one set of Vehicle Stake test system, then they need more computers to use, more people to operate the computers, it is a waste of money and work force. In order to satisfy the different demands of the market, we design Multi-Field Vehicle Stake Test System which is based on embedded system. This equipment realizes the function that one computer control more than two fields. And we use visual basic to program, realizing the need for judging, depositing, printing the results of the test.In the course of exploitation, we mainly have completed missions below:1. Complete the design of host machine: The main function of host machine is detecting the complexion of the stake test; collecting the information of the pressing and bumping; analyzing the data in the MCU; sending the codes to assistant machine for sending the pressing, bumping or regular status, at the same time, the data is sent to the upper computer.2. Complete the design of assistant machine: The main function of assistant machine is incepting the code from the host machine; using the sensors and the signals of the car's appearance for detecting the car's status which is going ahead, backing off, shutting down or flameout, sending the car's status code to host control equipment. We design sound system, realizing sound prompt, so the drivers can hear the status real time during the process of test.3. Communication of several host machine and upper computer. Serial communication modules are used between the upper computer and the host machines.4. Manage interface on upper computer: Visual Basic language is used for program systems manage interface. People can see the process of the test on the interface, then finally the results will be printed, and the data generated in the whole process will be saved in the examinee database.This paper introduces the software and the hardware design of multi-field serial communication. The hardware and software has applied and run reliably. The design can realize the demand that more cars can be trained and tested at the same time; automation features and highly efficient is embodied, lower the system cost, has definite significance.