基于单芯片传感器的箱式变电站温湿度监控装置的研制

Development of Temperature and Humidity Monitoring Device for Box-type Substation Based on Single-chip Sensor

介绍了一种基于单芯片数字式温湿度传感器的箱式变电站温湿度监控装置。该装置利用AT89S52单片机对温湿度传感器输出的信号进行采集和处理,若温度或湿度值超限,则由单片机发出控制信号,通过固态继电器自动启动风扇散热或启动加热器和排气扇除湿,以防止电气设备过热和凝露的产生。同时,装置还具有报警、液晶显示和RS-485通信功能。

A temperature and humidity monitoring device for box-type substations is introduced, which based on the single chip digital temperature and humidity sensor. By using microprocessor AT89S52, the device gathers and processes the signals from the temperature and humidity sensors. When the temperature or humidity is higher than preset value, by the solid satae relay （SSR）, the microprocessor will turn the fan on for radiating heat, or turn heater and fan on for dehumidifing, preventing overheating and dewing of electrical equipment. Besides, the device has LCD display, alarm giving and RS-485 communication.