| At present, Highway passenger transport is important transportation way in China. However, there are some problems in the safety management of highway passenger transportation. Soliciting outside the station, get off on the highway and other irregularities have occurred in the process of passenger vehicles operating.It not only caused some congestion to the urban road traffic, but also bring some security risks. In reality, however, these prohibited behaviors have become the unspoken rules in the process of passenger vehicles operating. Although GPS positioning, video surveillance and other technology in the long-distance passenger traffic monitoring equipment has been applied for the existing problems in the management of passenger vehicle operation, the focus is primarily concentrated on the driving style of driver monitoring and passenger vehicle line positioning. Therefore, it has a very important significance to improve the level of passenger station supervision and management, and to avoid the illegal operation of passenger vehicles in the process of passenger vehicles operating.The content of this thesis is one part of the Intelligent Gated System of Passenger Vehicle Whole Anti-cheating.It is developed for the security requirements of passenger vehicle management. As an important part of the intelligent gated system of whole anti-cheating of passenger vehicle, Site marker receives passenger vehicle’s running track, the time and location of abnormal opening or closing door and other information in the driving process. And these information will be uploaded to the management information system through the serial port. At the same time, it can make system clearly record the time of in and out station site, illegal stay and other information of passenger vehicle. Site maker can make the system very clearly define the responsibility of the driver, the driver will be treated as a basis for a variety of recording illegal operations issues.The work principle of the intelligent gating system and the site marker is described from the function of the system, and the overall program of the site marker is designed. On the basis of it, the hardware design and software design of the site maker are carried out. In terms of hardware, first of all to chip and other components selection, STC89C52 microcontroller, which functional and cost are ideal, is the selection of control chip, using RS-485 bus to realize serial data transmission function, using nRF24L01 wireless module to realize wireless communication function. And design circuit principle diagram and PCB diagram for the site maker, finally make the circuit board of the site maker. In terms of software, through the analysis of the function and workflow of the site maker, the microcontroller program, including serial communication, wireless communication and control LED lattice screen,is designed. The laboratory debug and the outdoor debug for the site marker is carried out, and it... |