无线传感器网络数据终端设计与开发

在无线传感器网络（WSN）中，网关是连接无线传感器网络与外部网络的桥梁。该文根据农业应用需求，针对现有WSN网关功能单一、适用面狭窄等问题，设计开发了一个基于嵌入式Linux系统和ARM的多功能数据终端。该数据终端包括硬件层和软件层，硬件层主要包括控制核心、GPRS模块和无线传感器模块等,软件层则主要包括窗口模块、拔号模块、数据远程发送模块和数据采集模块。系统不仅具有数据转发的功能，而且可进行实时显示、本地存储和历史数据查询。系统使用MINIGUI为平台构建了一个窗口操作程序，用户可通过窗口进行系统控制，

Development of data terminal for wireless sensor network

In wireless sensor network (WSN), gateway is the bridge connecting wireless sensor networks and the external network. Based on ARM9 and embedded Linux system, a multi-function data terminal was designed which used for data transmission, data real-time display, data local storage and historical data query, including hardware and software. The hardware is mainly consisted of an ECU, a GPRS module, several wireless sensors. And the software is composed of interface module, dialing module, remote data transmitting module, and data collecting module. The system is multi-function and has wide applications. Graphical interfaces illustrate the function above using MINIGUI, and can be operated by touch screen easily. Through the experiment in lab, the multi-function data terminal designed can work stably and reliably, and is worth of practical application.