电量传感器在用电测控系统中的应用

Application of energy sensors in the test and control system of energy

设计了一种集中用电测控系统.该系统由1台PC机(上位机)和以5台单片机为核心的电量采集系统(下位机)组成.上位机的RS—485接口通过线缆与各下位机的RS—485接口相连,构成网络化测控系统;下位机利用新型的电子式电量传感器AD7751作为电量测量元件,实现多点电量检测和窃电侦测.该系统由于采用了专用电能传感器,使得电量计算方法简单,且可及时检测到系统短路、盗电等事故,有助于提高用电的安全性.

A kind of network system of energy test is designed.The system consists of two parts:a PC computer and an electrical gathering system which is consisted of five single chip microcomputers.The PC computer and the electrical gathering system are linked through interface RS-485,so a test and control network system is formed.The electrical gathering stsyem makes use of a new type of energy sensor AD7751,as energy test component to measure many energy parameters and have fault detection scheme.The calculating method of energy is simple because the new energy sensors are used.The fault detection scheme can be tested in time,so the system has higher safety propetry.