Intelligent Power Consumption Monitoring Device Based on Single-Chip Microcomputer

With the continuous update and continuation of modern science and technology, the application of power system in student dormitory building is more and more extensive, and more and more complicated. This puts forward higher requirements to the testing and management level of power ac parameters in student dormitory buildings. This paper introduces a single-chip microcomputer AT89C51 as the core processor to complete the real-time monitoring of dormitory power consumption and power limit function; this system is composed of LCD screen, current transformer, current signal acquisition, voltage signal acquisition, alarm circuit, relay contact protection circuit, smartphone and communication bluetooth module. The circuit detection module can detect the ac voltage and current continuously in real time and monitor the dormitory electrical appliances in real time with the LCD screen LCD12864 and the smartphone. When the high-power electrical appliances are used, the alarm is prompted and transmitted to the main monitoring unit through the communication bus, so as to realize intelligent monitoring and power limit.