阅读说明：本技术 智能安全插座 (Intelligent safety socket ) 是由 李达 鲁涛 于 2020-06-10 设计创作，主要内容包括：本发明公开了一种智能安全插座,包括主控制器、单片机以及电流检测电路、漏电检测电路、电压检测电路,所述主控制器与单片机连接,所述单片机与电流检测电路、漏电检测电路、电压检测电路连接；本申请提供一种具体的电路结构,通过具体电路结果进行采集电流、电压数据,其中,主控DSP-LPM2100MX通过串口通讯接收单片机发送来的,经过逻辑处理过的电压、电流、漏电的数据信息,在DSP内完成各种分析、比较、调取、计算,得到过压、过载、漏电、短路、负责特性判断等故障隐患信息,及突发事故结论分析,再通过SIM卡的无线通讯功能,发送到手机、电脑、管控平台等智能终端。(The invention discloses an intelligent safety socket which comprises a main controller, a single chip microcomputer, a current detection circuit, an electric leakage detection circuit and a voltage detection circuit, wherein the main controller is connected with the single chip microcomputer; the application provides a concrete circuit structure, gather electric current, voltage data through concrete circuit result, wherein, master control DSP-LPM2100MX receives that the singlechip sends through serial communication, the data message of voltage, electric current, electric leakage that passes through logic processing accomplishes various analysis, comparison, transfer, calculation in DSP, obtain the hidden trouble information such as overvoltage, overload, electric leakage, short circuit, responsible for characteristic judgement, and accident conclusion analysis, the wireless communication function of rethread SIM card, send intelligent terminal such as cell-phone, computer, management and control platform.)

1. An intelligent safety socket is characterized by comprising a main controller, a single chip microcomputer, a current detection circuit, a leakage detection circuit and a voltage detection circuit, wherein the main controller is connected with the single chip microcomputer;

the current detection circuit adopts a non-isolated series-connected sampling resistor mode for two paths of L-220Vout and L-220V, R9 plays a role in increasing creepage distances of the two paths, input signals are divided and limited by R8, C13, R10 and C17 respectively, are converted into fully differential input analog signals, and are connected into a positive analog input channel of a singlechip V1P and a negative analog input channel of a singlechip V1N to finish current sampling of a detection circuit;

the leakage detection circuit is an NCT1 and NCT2 external zero sequence current transformer, transformer signals are respectively subjected to partial pressure filtering of two loops of R11, R12, C18, R13, R14 and C20 and converted into fully differential input analog signals, a single chip microcomputer V2P positive analog input channel and a single chip microcomputer V2N negative analog input channel are accessed to finish sampling of zero line current of a detection line, and leakage current in the line is detected through logical operation;

the voltage detection circuit samples zero line voltage, namely an L line is directly connected with a GND of a system, R19 and R20 have a voltage division function, and then are converted into a fully differential input analog signal through current-limiting filtering of R16, R17, C22 and C24, and the fully differential input analog signal is accessed into a positive analog input channel of a single chip microcomputer V3P and a negative analog input channel of a single chip microcomputer V3N, so that voltage sampling of a detection line is completed.

2. The smart security socket of claim 1, wherein the main controller is DSP-LPM2100 MX.

3. The intelligent safety socket according to claim 1, wherein the single chip microcomputer is RN 8209C.

4. The intelligent safety socket of claim 1, further comprising a wireless communication unit, wherein the main processor is in communication connection with the intelligent terminal through the wireless communication unit.

5. The smart security socket according to claim 1, further comprising a temperature sensor, wherein the temperature sensor is used for collecting the temperature of the operation area.

Technical Field

The invention relates to the technical field of Internet of things equipment, in particular to an intelligent safety socket.

Background

Currently, intelligent products of various manufacturers are full of markets, and particularly in the increasingly perfected intelligent home, remote opening and closing and basic data acquisition and display are realized in a wireless and wired control mode; however, for smart sockets, only simple intelligent management and control can be realized at present. With the development and progress of the technology, people have more and more functional requirements on the intelligent socket, and the current intelligent safety socket cannot meet the use requirements of people.

Disclosure of Invention

In order to solve the above problems, an object of the present application is to provide an intelligent security socket.

In order to achieve the purpose of the invention, the intelligent safety socket provided by the invention comprises a main controller, a single chip microcomputer, a current detection circuit, an electric leakage detection circuit and a voltage detection circuit, wherein the main controller is connected with the single chip microcomputer, and the single chip microcomputer is connected with the current detection circuit, the electric leakage detection circuit and the voltage detection circuit;

the current detection circuit adopts a non-isolated series-connected sampling resistor mode for two paths of L-220Vout and L-220V, R9 plays a role in increasing creepage distances of the two paths, input signals are divided and limited by R8, C13, R10 and C17 respectively, are converted into fully differential input analog signals, and are connected into a positive analog input channel of a singlechip V1P and a negative analog input channel of a singlechip V1N to finish current sampling of a detection circuit;

the leakage detection circuit is an NCT1 and NCT2 external zero sequence current transformer, transformer signals are respectively subjected to partial pressure filtering of two loops of R11, R12, C18, R13, R14 and C20 and converted into fully differential input analog signals, a single chip microcomputer V2P positive analog input channel and a single chip microcomputer V2N negative analog input channel are accessed to finish sampling of zero line current of a detection line, and leakage current in the line is detected through logical operation;

the voltage detection circuit samples zero line voltage, namely an L line is directly connected with a GND of a system, R19 and R20 have a voltage division function, and then are converted into a fully differential input analog signal through current-limiting filtering of R16, R17, C22 and C24, and the fully differential input analog signal is accessed into a positive analog input channel of a single chip microcomputer V3P and a negative analog input channel of a single chip microcomputer V3N, so that voltage sampling of a detection line is completed.

Wherein the main controller is DSP-LPM2100 MX.

Wherein, the singlechip is RN 8209C.

The intelligent terminal comprises a main processor and a wireless communication unit, wherein the main processor is in communication connection with the intelligent terminal through the wireless communication unit.

The device also comprises a temperature sensor, and the temperature of the operation area is acquired through the temperature sensor.

Compared with the prior art, the intelligent terminal has the beneficial effects that the current and voltage data are collected through a specific circuit result, wherein the master control DSP-LPM2100MX receives the voltage, current and electric leakage data information which is sent by the single chip microcomputer through serial port communication and is subjected to logic processing, various analyses, comparisons, calling and calculation are completed in the DSP, the fault hidden danger information such as overvoltage, overload, electric leakage, short circuit and responsible characteristic judgment and the like and the accident conclusion analysis are obtained, and the fault hidden danger information and the accident conclusion analysis are sent to the intelligent terminal such as a mobile phone, a computer, a management and control platform and the like through the wireless communication function of the SIM card.

It should be noted that, a software program that is relied on for completing data processing in the DSP is not innovative in the present application, and the innovation in the present application is designed in the integration and connection structure of each functional module of the intelligent safety socket by adopting the prior art.

Drawings

FIG. 1 is a schematic diagram of a first portion of a circuit configuration of the present application;

fig. 2 is a second partial schematic diagram of the circuit structure of the present application.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, pins 28 and 29 of the master LPM module in fig. 1 are connected to pins 12 and 13 of the single chip RN8, respectively.

As shown in fig. 1 and 2, a specific embodiment of an intelligent safety socket provided by the present invention includes a main controller, a single chip, a current detection circuit, a leakage detection circuit, and a voltage detection circuit, wherein the main controller is connected to the single chip, and the single chip is connected to the current detection circuit, the leakage detection circuit, and the voltage detection circuit;

the current detection circuit adopts a non-isolated series-connected sampling resistor mode for two paths of L-220Vout and L-220V, R9 plays a role in increasing creepage distances of the two paths, input signals are divided and limited by R8, C13, R10 and C17 respectively, are converted into fully differential input analog signals, and are connected into a positive analog input channel of a singlechip V1P and a negative analog input channel of a singlechip V1N to finish current sampling of a detection circuit;

the leakage detection circuit is an NCT1 and NCT2 external zero sequence current transformer, transformer signals are respectively subjected to partial pressure filtering of two loops of R11, R12, C18, R13, R14 and C20 and converted into fully differential input analog signals, a single chip microcomputer V2P positive analog input channel and a single chip microcomputer V2N negative analog input channel are accessed to finish sampling of zero line current of a detection line, and leakage current in the line is detected through logical operation;

the voltage detection circuit samples zero line voltage, namely an L line is directly connected with a GND of a system, R19 and R20 have a voltage division function, and then are converted into a fully differential input analog signal through current-limiting filtering of R16, R17, C22 and C24, and the fully differential input analog signal is accessed into a positive analog input channel of a single chip microcomputer V3P and a negative analog input channel of a single chip microcomputer V3N, so that voltage sampling of a detection line is completed.

Wherein the main controller may employ DSP-LPM2100 MX.

Wherein, the singlechip can adopt RN 8209C.

The intelligent terminal comprises a main processor and a wireless communication unit, wherein the main processor is in communication connection with the intelligent terminal through the wireless communication unit.

The method adopts an embedded DSP with a high-speed communication function to finish the collection and operation of large data volume, and comprises the steps of carrying out analog/digital conversion on collected voltage U, collected detection current, collected leakage current and connection point temperature collected by a temperature sensor, amplifying signals by an operational amplifier, transmitting the signals to a main processor, carrying out mathematical calculation on four types of data, establishing various mathematical models, and increasing the sampling frequency and the reduction degree of analog quantity; and when the fault information is judged, the fault information is output to the communication module through the I/O port, finally, fault data is transmitted to the cloud platform in a wireless transmission mode, and then the cloud platform pushes alarm information to each intelligent terminal. Of course, the collected real-time four types of data are calculated and analyzed by the processor and then transmitted to the cloud platform through the communication module.

The technical means not described in detail in the present application are known techniques.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.