Design And Implementation Of Public Bike System Based On CPU Card

With the continuous development of the public transport system and the ownership of private cars explosive growth, road traffic congestion is more and more serious, especially in the rush hour, a great obstacle to the people's daily travel, due to air pollution caused by the exhaust emissions of motor vehicles will seriously affect the sustainable development of society. A short trip of low carbon environmental protection and safety, and is recognized by more and more people's attention, will integrate the bike to the public transport system, as a supplement of city traffic trip is an important direction of traffic development in the world.Research work based on the actual development project, this thesis designed a set of complete public bike system can run independently, based on the existing site of public bicycle system controller, electronic anti-theft lock function improvement and development, with the help of the high security of the CPU card, designed a set of more efficient secure public bicycle systems, and between individual sites completed the actual test.First, this thesis studied the existing public bike system development history and present situation at home and abroad, and summarizes summarizes the existing problems of public bicycle systems, aiming at these problems puts forward the research purpose and research content of this article system.Secondly, this thesis has summarized the public bicycle system based on CPU card design requirements and design principles, and explained the basic technical specifications in the design of the CPU card. Through on leasing card in the system and the importance of the change of system transmission bus, put forward in this thesis, the system design scheme, and the structure of double CPU card was introduced.Again, through to the new design of software and hardware condition of electronic anti-theft lock design analysis, introduced in this thesis, an essential part of the design system and the basic working principle. This thesis adopted double CPU card as the user leasing card and bicycle key card, improved the security of the system and user, full site data transmission using CAN bus, improve the data transmission efficiency and stability of the system, and based on STM32 core controller to complete electronic anti-theft lock development, mainly includes CPU card reader design, intelligent motor drive, CAN bus data transfer, voice, LCD control hardware and software development and debugging, etc. According to the changed electronic anti-theft lock site controller development, perfect design and the debugging, the design of the system design to the design process and the results show, and complete the bike rental between the single site commissioning.System designed in this thesis to a certain extent, solve the safety stability of the existing public bicycle systems, improve operational efficiency, has the good practical application and reference value.