| 基于无线传感器的远程实时监控与固件更新系统设计 |
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| 引用本文： | 吴睿超,侯 俊.基于无线传感器的远程实时监控与固件更新系统设计[J].教育技术导刊,2019,18(9):130-133. |
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| 作者姓名： | 吴睿超 侯 俊 |
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| 作者单位： | 上海理工大学 光电信息与计算机工程学院，上海 200093 |
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| 摘 要： | 针对工业生产中难以监控传感器状态的问题，设计一个物联网系统，实现远程传感器数据监控与固件更新。该系统由远程实时监控系统与远程固件更新系统组成，传感器采用嵌入式实时操作系统。在远程实时监控系统中，传感器可调节频率测量数据，基于消息排队遥测传输协议，通过无线网络将数据传输到服务器。为使远程固件更新系统运行符合限制应用协议，传感器连接至轻量级物联网协议服务器，再通过网关连接到hawkBit服务器中，基于超文本传输协议与轮询方式，由hawkBit提供远程更新服务。实践操作表明，该系统操作简单，具有可视化、直观的优点，可满足大型工厂远程实时监控与固件更新需求。
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| 关 键 词： | 无线传感器 远程固件更新 远程实时监测 消息队列遥测传输 轻量级物联网 |
| 收稿时间： | 2018-12-13 |
Design of Remote Real-time Monitoring and Firmware Update over the Air System Based on Wireless Sensor |
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| WU Rui-chao,HOU Jun.Design of Remote Real-time Monitoring and Firmware Update over the Air System Based on Wireless Sensor[J].Introduction of Educational Technology,2019,18(9):130-133. |
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| Authors: | WU Rui-chao HOU Jun |
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| Institution: | School of Optical-Electrical Computer Engineering，University of Shanghai for Science and Technology， Shanghai 200093，China |
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| Abstract: | Aiming at the problem that it is difficult to monitor and control sensors in the industrial production， an IoT system is designed to monitor and control sensors remotely and update firmware over the air. The system based on the wireless sensors using an embedded real-time operating system consists of two subsystems： one is a remote real-time monitoring system and the other one is firmware updating over the air system. In the remote real-time monitoring system， the measurement frequency of sensors can be changed remotely and data will be transmitted to the server via a wireless network based on the Message Queuing Telemetry Transport Protocol. In the firmware updating over the air system， in order to implement the restricted application protocol， sensors are connected to server based on lightweight machine to machine （LWM2M） protocol， and then LWM2M sever is connected to hawkBit server through the gateway， afterwards， hawkBit provides a firmware update service remotely based on HTTP and a polling method. This system is proved to be easy to operate with an advantage of visualization and intuition and it can meet the requirements of remote real-time monitoring and firmware update for factories. |
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| Keywords: | wireless sensor firmware update over the air remote real-time monitoring MQTT LWM2M |
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