The Intelligent Gateway Design Based On ZigBee

In the process of the development of a new generation of information technology to connect wireless sensor network(WSN)and traditional communication network gateway,is the key to provide convenient interactive information service.In view of the WSN in some application scenarios need to factors such as long distance transmission of data,and the gateway as the middle part of the directional data transmission process,need improvement in its traditional mode to meet the needs of the development of information technology.Comprehensive the above consideration,this paper designed and built based on the platform of ARM + Linux is suitable for short distance,low power consumption ZigBee wireless communication technology of the embedded intelligent gateway.First of all,this article from the ZigBee wireless sensing network access to the Internet this,put forward building a gateway system based on ARM + Linux platform,through the application of embedded gateway and Internet communication technology combined solution of completed the top-level design of embedded intelligent gateway system.On this basis,according to the gateway function requirements of the design,the implementation of the gateway from the three aspects of wireless sensor network data information receiving,storage,view and the data transmission with the Internet.First,the ZigBee sensor device node in the network data reception;Second,the terminal nodes to collect information on the gateway,through the design of the gateway applications and drivers to provide the data file to check the service,have the ability to human-computer interaction;Third,remote network transmission to the original data or data files,can make reasonable choice according to the scene,either in the remote PC monitoring to collect data,also can be stored in the gateway local view.Then,in this paper,on the basis of building hardware platform,the Internet gateway was designed and implemented the function of the software modules,and a software platform,ZigBee nodes in the system module,communication interface module,the module driven and data management display module design idea and technical implementation are analyzed in detail.Then,in this paper,the main work is on the basis of the hardware equipment,set up open source,portable,easy to reuse the Linux system operation platform,in view of the gateway on the function of the design requirements completed to TCP network communication program and display program design and implementation of the interface,which also to the input and output devices such as LCD and touch screen driver for the transplant.Gateway on the application of a feature is to maximize the reduced dependence on the tool software,to avoid the load on the system resources,and based on the POSIX standard C program also have good portability,compatible with most of the embedded operating system.Finally,in the setting of test environment on the system each function module and gateway platform hardware and software for comprehensive test.By analyzing the test results,this paper proved the design of the embedded intelligent gateway is completely suitable for sensor networks based on ZigBee technology,and the overall performance can meet the expected design goal.