摘要
针对物联网工程应用,设计了一种低成本的轻量级物联网网关.该网关采用32位Cortex-M3微处理器STM32F107VC和开源嵌入式操作系统Free RTOS作为系统平台,运行FAT文件系统、TCP/IP和Modbus协议,通过RS485网络和433MHz无线网络采集现场传感器数据,并可将数据存储于SD卡,具有以太网和GPRS DTU 2种连接Internet的通信链路,支持通过2种链路上传数据到服务器或接收服务器的远程控制.网关成本低、功耗小、多链路、通信实时性好,适合应用于物联网监测领域.
In this paper, we design and implement a low cost and lightweight gatewayfor engineering application of the Internet of things, adopting STM32F107VC based on 32 bit Cortex-M3 core and open source embedded operating system FreeRTOS as the system platform, operated by FAT file system, TCP/IP and Modbus protocol. Gateway can acquire sensor data in field through RS485 or 433MHz wireless network, and store them on build-in SD memory card. It can connect Internet by using link of Ethernet or GPRS, transmit data to server, and be controlled remotely. Characterized by low cost, low power, multi-interface, and real-time, it offers a more cost-efficient solution to supervisory system in IOT.
出处
《深圳职业技术学院学报》
CAS
2015年第1期12-17,共6页
Journal of Shenzhen Polytechnic
基金
深圳职业技术学院校级重点科研项目资助(2210K3010001)
