基于树莓派和Java语言的温湿度远程实时测量系统的设计

Design of Remote Real-time Measuring System of Temperature and Humidity Based on Raspberry Pi and Java Language

为了提高变电站内温湿度监测水平,基于树莓派嵌入式系统和Java语言开发了一种温湿度远程实时测量系统,该系统包含客户端、服务器、温湿度测量模块三层硬件架构,客户端和服务器都连接在互联网或局域网中,采用Java语言编程,实现客户端与服务器之间多种通讯模式,客户端可显示可视化控制界面和测量结果;系统运行表明,由于树莓派同时作为现场测量模块的控制器和服务器,数据库在树莓派服务器端生成,数据库文件不会受客户端连接状态的影响,客户端不必时刻与服务器连接,在需要时可连接任一接入系统的树莓派服务器,连接效率大大提高,该系统还可根据实际需要改变服务器和客户端数量、客户端的控制界面,具有很大的灵活性和很强的可扩展性。

In order to improve the temperature and humidity monitoring level in substations, a remote real--time measuring system of temperature and humidity based on Raspberry Pi and Java language is developed. This system consists of three layers of hardware architec- ture, including client, server and temperature and humidity measurement module. The client and server are connected to the Internet or LAN, using Java language programming, and there are four modes of communication between the client and the server, while the client can display the visual control interface and measurement results. The system in operation shows that since the Raspberry pies act both as meas- urement controller and server, the database can be generated in Raspberry pi server and the database files will not be affected by the client connection status. So the client does not have to constantly be in connection with the servers. When it is needed, the client can be connected to any one of Raspberry pi servers, so connection efficiency is greatly improved. What＇ s more, the system can also change the number of servers and clients and the control interface of the client, according to the actual needs, which makes great flexibility and strong extensible property.