Internet-of-things intelligent circuit breaker based on WIFI mode

Abstract

The invention provides an internet-of-things intelligent circuit breaker based on a WIFI mode. The internet-of-things intelligent circuit breaker comprises an electric leakage circuit breaker body andan internet-of-things intelligent device. The internet-of-things intelligent device comprises a sampling circuit, a driving circuit, an MCU and a WIFI communication circuit. The sampling circuit collects current, residual current and temperature of the residual current circuit breaker body in real time and sends the current, the residual current and the temperature to the MCU through A / D conversion after signal conditioning. The MCU compares the current, the residual current and the temperature with corresponding thresholds respectively and outputs high-low level pulse signals to the drive circuit. When the driving circuit receives the low-level pulse signal, the tripping mechanism of the residual-current circuit breaker body is kept not to act. When the high-level pulse signal is received, a tripping mechanism of the residual-current circuit breaker body is driven to act to trip the residual-current circuit breaker body. The WIFI communication circuit sends the current, the residualcurrent and the temperature to a mobile terminal or a cloud terminal. According to the invention, the circuit breaker is combined with the Internet of Things, carries out the effective monitoring andcontrol of the basic state of a circuit, and achieves the real-time monitoring and big data analysis of the circuit breaker in time.

Description

technical field [0001] The invention relates to the technical field of leakage circuit breakers, in particular to a WIFI-based intelligent circuit breaker for the Internet of Things. Background technique [0002] The circuit breaker is one of the most important switching electrical equipment in the low-voltage power distribution system. It plays the role of control and fault protection of the power supply and distribution lines in the power supply and distribution system, and plays a very important role in the safety, stability and economic operation of the power grid. role. The protection and control functions of the circuit breaker to its protected objects are mainly completed by the opening and closing operations of its core unit, the tripping device. Leakage circuit breaker is a category of circuit breaker, which has both overload and short-circuit protection, and can operate when the leakage current in the circuit exceeds a predetermined value. Its characteristic is th...

AI Technical Summary

Problems solved by technology

[0003] However, the existing leakage circuit breakers cannot be combined with the Internet of Things, and cannot effectively monitor and control the basic state of the circuit, let alone timely real-time monitoring and big data analysis of the circuit breaker.

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