The Design Of RFID Access Control System On The Basis Of TCP/IP Protocol

With the rapid development of computer and network technology, access control system goes towards integration intelligence networking and distribution continuously. In recent years, due to the formation of INTERNET/Ethernet environment throughout the world, the design and development of access control system based on Ethernet has become an important aspect of the future access control system construction and development. Great changes took place in the scale construction function performance and etc. compared to traditional system, therefore, how to adapt the change and how to present a practical development method becomes the key element that modern access control system has to face.The design of RFID access control system, which is based on TCP/IP protocol conform to the current situation. By carrying out the data transfer between the MCU embedded TCP/IP protocol stack and the manager PC and combining the Radio Frequency technology, we accomplish the modern networking access control system. This system can provide more convenience than the old one, which the data transfer, is based RS 485 protocol, such as save our money and save our wealth.At present, the control means of access control system is mainly by touching IC controller, RFID controller, and fingerprint controller, etc according to the world. Among them because of the advances of the RFID technology, RFID access control system has the incomparable superiorities. The applications of it become the important parties of building weak electricity system already, and it is also the important signs of building managements. AS speaking as the way of communication, the current system confine to single door system or networking system on the basis of RS485 or RS232 protocol. Along with the development of the information technology, people want higher and higher standard of living and automobile. Ethernet based on TCP/IP protocol has become popularized to the factory, workshop, company, office premises and family. It is more and more for enterprise to set up building network system. and join the worldwide INTERNET issues. By the development of networks, many companies carry out management by networks, In order to simplify operating and save manpower resources. Therefore, how to adapt the change and how to present a practical development method becomes the key element that access control system has to face.The design accomplishes the RFID access control system by combining the Radio Frequency technology with TCP/IP protocol. Because of absorbing the merits of these two kinds of technology, the system has the technology advantage, broad market prospects, and practical value. The outstanding advantage is the means that communication uses is depend on steady Ethernet. The system can provide more convinces, especially in the places, which have networking environments. We can Control and manage by any PC which has been installed the management software on the networking.By combining the RFID technology with the technology of database and the TCP/IP protocol, Working out the RFID access control system on the basis of TCP/IP protocol, has very great actual meanings on the topic, At the same time the researches of it still can open up the new train of thought for other uses, So this achievement has certain value on academy and application. The main achievements of this research are as below:Have expounded the principle of the design for access control system that is based on TCP/IP protocol, and have put forward the overall plan of design.Have solved the problem of network data transmission for the MCU embedded TCP/IP protocol stack. This system can provide more conveniences than the old one of which the data transmission is based on RS 485 protocol .the transfer rate of the data is higher, the number of the nodes are more, and it is more convenient for administrator to manage.Have done further research about the RFID technology.Have accomplished one unit of RFID reader model, one unit of access controller model, and one unit of the man...