Based on ZigBee technology smart home system design using ZigBee star configuration. That ZigBee
coordinator (including full-featured ZigBee devices) is the core of the entire communications program. To a
number of ZigBee end devices, as the surrounding nodes. Form a star network. Combined with remote control, *
the program may be composed of several parts: ZigBee coordinator, ZigBee end devices (controlled object,
such as: gas water table, smoke, temperature, gas, fire, theft alarm and other electrical appliances), the Internet,
the remote computer. ZigBee coordinator is responsible for ZigBee end and external network communication
between the cores of the system as a whole. ZigBee end device is responsible for data collection and a variety
of data transmission. The program based on the composition of the program can be divided into two modules:
The first family ZigBee coordinator module; two ZigBee end module. The former is further divided into core
control module to coordinate the server side wireless transceiver module, the network receive module and
GPRS module: the latter is divided into the terminal transceiver module and data acquisition and control
modules. The model in Figure 1. Smart Home ZigBee coordinator module ARM microprocessor core.
Communications Coordinator end wireless transceiver modules and terminal modules. GPRS mobile
communications through the Internet communicate with remote computers.
Function of each module and communicate with each other. Remote monitoring via cell phone or remote
computer on the Internet.