Based On The Design Of Zigbee Wireless Network Terminal

This paper first introduced the concept of zigbee technology, and then to the protocol stack zigbee framework for analysis. On this basis, designed and produced zigbee wireless network (short end of the terminal), including hardware circuit design and software design. The hardware circuit of the terminal to the Chipcon company CC2430 chips as the core chip, coupled with human-computer interaction interface circuit, JTAG interface circuit and power voltage circuit hardware circuit composed overall, and in external expanded the DS-18B20 digital temperature sensor. In addition also devised a RS232 serial communication circuit, Through a serial port and PC connection, so in the program during the commissioning of the observation results of the experiment. Terminal has eight independent configurable d/a transformation channel, conversion digits can choose 8-14, also has 11 can be used for external function expansion the digital quantity input/output interface. Software design part which is based on the Z-Stackl.4.2 ZigBee technology-version 1.0.1 protocol stack.Build own engineering applications. Realize the terminal access, data acquisition, and network routers and coordination of wireless data communication between an etc. Function.The test results show that to terminal, terminal can realize automatic joining an existing network, in the current environment temperature and real-time acquisition, Then will the data sent to router, finally by the router forwards to coordinate implement, complete the terminal network data acquisition and send.This terminal which has better versatility. Terminal currently adopted widely, the price is cheap digital temperature sensor DS-18B20 to complete the acquisition and send temperature environment. The application in the future based on the terminal hardware can be extended, in order to achieve the other sensors to other physical quantities of acquisition. Still can increase control function, applied to such as intelligent household, medical monitoring, mine monitoring and environmental monitoring, ZigBee technology application to have a certain reference value.