一种无线传感网与现场总线通信网关的设计与实现

设计了一种无线传感网与CAN总线、Modbus总线的通信网关。该装置以嵌入式微处理器STM32F207ZG为核心,采用无线通信模块CC2530作为无线传感网汇聚节点。在RS485通信的基础上实现了Modbus协议。STM32F207ZG内部CAN总线控制器配合CAN总线收发模块使网关可以接入CAN总线。试验表明:该网关分别接入Modbus总线、CAN总线均可实现总线监控网络与无线传感网的数据传输,且可以作为新型无线传感网监控系统扩充现场总线数据采集设备的接入点。

Design and Implementation of Communication Gateway for Wireless Sensor Network and Fieldbus

A communication gateway is designed for wireless sensor network and CAN,Modbus.The embedded microprocessor STM32F207ZG is taken as core.The wireless communication module CC2530 is used as cluster node.The Modbus protocol is implemented based on RS485.The gateway can access to CAN by the cooperation of internal CAN controller and transceiver module.The experiments show that the gateway can provide stable data transmission when access to Modbus as master or slave,as well as to CAN,and can serve as a access point for new wirless sensor network monitoring system to expand fieldbus data acquisition equipment.