CN104934800A - Intelligent electric shock preventive socket system based on plug identification - Google Patents

Abstract

The invention discloses an intelligent anti-shock socket system based on plug identification, which includes a CPU main controller module, a plug detection module, a power supply module, a thyristor switch module and a reset module; the plug detection module collects plug information, and the CPU main The controller module analyzes and judges the signal collected by the plug detection module, and then outputs a driving signal to control the thyristor switch module, which controls the power on and off of the socket, and the reset module resets the operating state of the CPU main controller module. The power module provides DC power. Identify whether there is a plug inserted into the socket through the plug detection module, and transmit the detection signal of the plug detection module to the CPU main controller module in real time, and the CPU main controller module outputs the driving signal according to the signal collected by the plug detection module to control the thyristor switch module on and off , and then form an intelligent anti-shock system. The invention has simple structure and low cost, improves the safety of the plug detection system, and has broad market application prospects.

Description

Intelligent anti-shock socket system based on plug identification

technical field

The invention relates to the technical field of socket safety, in particular to an intelligent anti-shock socket system based on plug identification.

Background technique

The socket is an indispensable electrical connection device in modern life. At present, most of the traditional sockets directly connect the electrode contacts in the socket with the power lines, and when in use, the plugs of the electrical appliances directly contact the electrode contacts to achieve the purpose of connecting to the power supply. Because the electrode contacts of this socket are electrified, an arc will be generated during the plugging and unplugging process of the plug, which is easy to be directly or indirectly touched by hands, causing an electric shock accident. In addition, children may misplug the socket with their hands or conductors out of curiosity, which is very likely to cause electric shock accidents. In addition, ordinary electric shock-proof sockets only have a baffle at the socket, and cannot identify the plug from the source to prevent electric shock accidents.

Contents of the invention

The purpose of the present invention is to provide a safe and reliable intelligent anti-shock socket system based on plug identification. Turn on the power supply in time to prevent electric shock accidents and ensure personal safety.

The technical solution to realize the object of the present invention is: a kind of intelligent anti-shock socket system based on plug identification, including CPU main controller module, plug detection module, power supply module, silicon controlled rectifier switch module and reset module, described plug detection module , power supply module, thyristor switch module and reset module are all connected with the CPU main controller module; the plug detection module collects the plug information, and the CPU main controller module analyzes and judges the signal collected by the plug detection module and outputs the driving signal Control the thyristor switch module, the thyristor switch module controls the on and off of the socket power supply, the reset module resets the running state of the CPU main controller module, and the power supply module sends information to the CPU main controller module, the plug detection module, and the thyristor switch module and reset module to provide DC power;

Identify whether there is a plug inserted into the socket through the plug detection module, and transmit the detection signal of the plug detection module to the CPU main controller module in real time, and the CPU main controller module analyzes and judges the signal collected by the plug detection module and outputs the controllable driving signal The silicon switch module is on and off, and the thyristor switch module controls the on and off of the socket power supply, thereby forming an intelligent anti-shock system.

Compared with the prior art, the present invention has significant advantages in that: (1) it adopts a cost-effective, low-power microprocessor and an ultra-high-accuracy plug detection module to identify whether there is a plug inserted in the socket through the plug detection module, Thereby controlling the on-off of the socket power supply and realizing the purpose of preventing electric shock; (2) It can not only avoid electric leakage and electric shock accidents caused by the plug in the process of plugging and unplugging, but also prevent children from mistaking the socket with hands or conductors out of curiosity. (3) Integrate low power consumption, low cost, and intelligent control into one, with high reliability, good stability, strong anti-interference ability, small size, easy installation, no need for human operation, and can directly replace traditional socket system.

Description of drawings

Fig. 1 is a block diagram of the working principle of the intelligent anti-shock socket system based on plug identification in the present invention.

Fig. 2 is a circuit diagram of a power module in the smart electric shock-proof socket system based on plug identification according to the present invention.

Fig. 3 is a circuit diagram of the photoelectric cross-radiation signal detection in the intelligent anti-shock socket system based on plug identification of the present invention.

Fig. 4 is a circuit diagram of a switch pressing signal detection circuit in the smart electric shock-proof socket system based on plug identification according to the present invention.

Fig. 5 is a circuit diagram of a strain gauge mechanical signal detection circuit in the smart electric shock-proof socket system based on plug identification according to the present invention.

Fig. 6 is a circuit diagram of a thyristor switch module in the smart electric shock-proof socket system based on plug identification according to the present invention.

Fig. 7 is a circuit diagram of the CPU main controller module in the smart electric shock-proof socket system based on plug identification of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

In conjunction with Fig. 1, the intelligent anti-shock socket system based on plug identification of the present invention includes a CPU main controller module, a plug detection module, a power supply module, a thyristor switch module and a reset module, the plug detection module, the power supply module, the controllable Both the silicon switch module and the reset module are connected with the CPU main controller module; the plug detection module collects the plug information, and the CPU main controller module analyzes and judges the signal collected by the plug detection module, and then outputs a driving signal to control the thyristor switch module , the thyristor switch module controls the power on and off of the socket, the reset module resets the operating status of the CPU main controller module, and the power supply module provides DC power to the CPU main controller module, plug detection module, thyristor switch module and reset module ;

Identify whether there is a plug inserted into the socket through the plug detection module, and transmit the detection signal of the plug detection module to the CPU main controller module in real time, and the CPU main controller module analyzes and judges the signal collected by the plug detection module and outputs the controllable driving signal The silicon switch module is on and off, and the thyristor switch module controls the on and off of the socket power supply, thereby forming an intelligent anti-shock system.

Referring to Fig. 2, the power module includes an LM7805 chip, a first capacitor C1, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4, wherein the anode of the first capacitor C1 is connected to the input voltage Vin and the input terminal of the LM7805 chip respectively. Connection, the negative pole of the first capacitor C1 is respectively connected to one end of the third capacitor C3 and the ground terminal of the LM7805 chip, and the other end of the third capacitor C3 is connected to the input voltage Vin; the positive pole of the second capacitor C2 is respectively connected to the output end of the LM7805 chip , the output power supply VCC connection, the negative pole of the second capacitor C2 is connected to the ground terminal of the LM7805 chip; one end of the fourth capacitor C4 is connected to the ground terminal of the LM7805 chip, and the other end is connected to the output terminal of the LM7805 chip; the ground terminal of the LM7805 chip is grounded GND; the Vin is the input voltage after the step-down and rectification of the transformer, and the Vin is converted into a 5V output power supply VCC through the power supply module, and the output power supply VCC is used as the CPU main controller module, plug detection module, thyristor switch module and reset The power supply of the module.

The plug detection module adopts a triple detection structure, including a photoelectric signal detection circuit, a switch pressing signal detection circuit and a strain gauge mechanical signal detection circuit. The plug detection module includes a photoelectric signal detection circuit, a switch pressing signal detection circuit and The mechanical signal detection circuit of the strain gauge, the photoelectric signal detection circuit and the switch pressing signal detection circuit are digital quantity detection, and the mechanical signal detection circuit of the strain gauge is an analog signal detection; the CPU main controller module analyzes and judges the three As for the output results of the detection circuits, when the three detection circuits simultaneously judge that a plug is inserted into the socket, the CPU main controller module outputs a high level to make the thyristor switch module control the power supply of the socket to be turned on. The three detections are to detect whether there is a plug inserted into the socket, and the three detections are in the relationship of "and". Only when the signals are detected in the three detections, can it be judged that there is a plug inserted, and the socket will be delayed to turn on the power to prevent the occurrence of Electric shock accidents ensure personal safety, greatly increase the accuracy of detection, and prevent misuse.

As shown in Figure 3, the photoelectric beam signal detection circuit includes a first resistor R1, a second resistor R2, a third resistor R3, a photoelectric tube U1, a second comparator chip U2, namely LM393, wherein the first resistor R1 One end of the second resistor R2 is connected to the anode input end of the photoelectric tube U1, and the other end is connected to VCC. One end of the second resistor R2 is connected to the anode output end of the photoelectric tube U1, and the other end is connected to VCC. One end of the third resistor R3 It is connected to VCC, the other end is grounded to GND, and the third end is the adjustment end is connected to the inverting input end of the comparator chip U2. The output end of the second comparator chip U2 is the V1 port of the photoelectric signal detection circuit. After the plug is inserted into the socket, the signal of the photoelectric transmitting tube in the photoelectric tube U1 will be blocked, and the photoelectric receiving tube will be in a closed state if it cannot receive the photoelectric signal. The positive input terminal of the second comparator chip U2 is at high level, and the second The output terminal of the second comparator chip U2, that is, the V1 port, outputs a high-level digital signal and transmits it to the CPU main controller module; is low level, the output terminal of the second comparator chip U2, that is, the V1 port outputs a low level digital signal and transmits it to the CPU main controller module; the CPU main controller module judges whether the plug is inserted through the high and low level identification of the V1 port socket.

As shown in Figure 4, the switch press signal detection circuit includes a fourth resistor R4, a fifth resistor R5, a light touch press self-resetting switch S1, a third comparator chip U3, namely LM393, wherein one end of the fourth resistor R4 is connected to the first The non-inverting input terminal of the three comparator chip U3 is connected, the other end is connected to VCC, one end of the self-resetting switch S1 is connected to the non-inverting input end of the third comparator chip U3, the other end is grounded to GND, and the fifth resistor R5 is connected to one end The ground is GND, the other end is connected to VCC, and the third end, namely the adjustment end, is connected to the inverting input end of the third comparator chip U3. When the plug is inserted into the socket, lightly press the self-resetting switch S1 to turn on, the positive input terminal of the third comparator chip U3, that is, LM393, is at high level, and the output terminal of the third comparator chip U3, that is, V2 port, outputs a high level digital The signal is transmitted to the CPU main controller module; when no plug is inserted into the socket, lightly touch and press the self-resetting switch S1 to turn off, the positive input terminal of the third comparator chip U3 is at low level, and the output terminal of the third comparator chip U3 That is, the V2 port outputs a low-level digital signal and transmits it to the CPU main controller module, and the CPU main controller module judges whether the plug is inserted into the socket by identifying the high and low levels of the V2 port.

As shown in Figure 5, the strain gauge mechanical signal detection circuit includes a first strain gauge Y1, a second strain gauge Y2, a sixth resistor R6, a seventh resistor R7, and an operational amplifier U4, wherein the first strain gauge Y1 One end is connected to the inverting input end of the operational amplifier U4, and the other end is connected to VCC. One end of the second strain patch Y2 is connected to the inverting input end of the operational amplifier U4, and the other end is grounded to GND. One end of the sixth resistor R6 is connected to the operational amplifier U4 The non-inverting input end of the seventh resistor R7 is connected to the non-inverting input end of the operational amplifier U4, and the other end is connected to VCC. One end of the seventh resistor R7 is connected to the non-inverting input end of the operational amplifier U4, and the other end is grounded to GND. Stick the first strain patch Y1 and the second strain patch Y2 on the reed of the socket. When a plug is inserted into the socket, the socket reed deforms, and the metal foil in the first strain patch Y1 and the second strain patch Y2 As the strain elongates or shortens, the resistance value changes, and the changed resistance value is converted into a changed voltage value through the Wheatstone bridge, and the voltage is amplified by the operational amplifier U4 and output from the output terminal of the operational amplifier U4, that is, the V3 port Output to the CPU main controller module, and the CPU main controller module judges whether there is a plug inserted into the socket by the voltage value of the V3 port.

As shown in FIG. 6 , the thyristor switch module adopts a BTA20-600B double triac AC switch and a triode SS8050 drive circuit to realize the control of the live wire (AC+). The thyristor switch module includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a first light-emitting diode D1, a first triode SS8050, and a first triac BTA20-600B, wherein the eighth resistor One end of R8 is connected to the anode of the first light-emitting diode D1, the other end is connected to VCC, one end of the ninth resistor R9 is connected to the base of the first triode SS8050, and the other end is V4 port, one end of the tenth resistor R10 is connected to the first bidirectional The emitter of the thyristor BTA20-600B is connected, the other end is grounded to GND, the cathode of the first light-emitting diode D1 is connected to the collector of the first triode SS8050, the first anode of the first bidirectional thyristor BTA20-600B is connected to the AC power supply The live wire input terminal AC+ is connected, the second anode is connected to the AC power supply live wire output terminal AC-Load, and the control electrode is connected to the emitter of the first triode SS8050. The first light-emitting diode D1 is the AC power switch indicator light, the first triode SS8050 is the driving triode, the V4 port is connected to the CPU main controller module, when the output of the V4 port is low level, the driving first triode SS8050 is cut off, The control of the first bidirectional thyristor BTA20-600B is extremely low level, the first bidirectional thyristor BTA20-600B is turned off, and the socket is powered off; when the output of the V4 port is high level, the first triode SS8050 is driven to conduct , the first bidirectional thyristor BTA20-600B is controlled at an extremely high level, the first bidirectional thyristor BTA20-600B is turned on, and the socket is charged.

As shown in Figure 7, the CPU main controller module includes a main controller chip ATMEGA328P-AU, an eleventh resistor R11, a twelfth resistor R12, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, a Eight capacitance C8, the second light-emitting diode D2, the first crystal oscillator XTAL and the first download port J1, wherein one end of the eleventh resistor R11 is connected to the PC6 port of the main controller chip ATMEGA328P-AU, the other end is connected to VCC, and the tenth One end of the second resistor R12 is connected to the PB4 port of the main controller chip ATMEGA328P-AU, the other end is connected to the anode of the second light emitting diode D2, one end of the fifth capacitor C5 is connected to the PC6 port of the main controller chip ATMEGA328P-AU, and the other end is connected to the PC6 port of the main controller chip ATMEGA328P-AU. One end is connected to the No. 5 pin DTR of the first download port J1, one end of the sixth capacitor C6 is connected to the AREF port of the main controller chip ATMEGA328P-AU, the other end is grounded to GND, one end of the seventh capacitor C7 is connected to the main controller chip The PB6 port of ATMEGA328P-AU is connected, and the other end is grounded to GND. One end of the eighth capacitor C8 is connected to the PB7 port of the main controller chip ATMEGA328P-AU, and the other end is grounded to GND. The No. 1 pin of the first download port J1 is grounded to GND, The 2nd pin is connected to VCC, the 3rd pin RXD is connected to the PD0 port of the main controller chip ATMEGA328P-AU, the 4th pin TXD is connected to the PD1 port of the main controller chip ATMEGA328P-AU, the 5th pin DTR is connected to the The five-capacitor C5 is connected to the PC6 port of the main controller chip ATMEGA328P-AU; the PB0 port of the main controller chip ATMEGA328P-AU is connected to the V4 port of the thyristor switch module, and the PB1 port and PB2 port of the main controller chip ATMEGA328P-AU and the PB3 port are respectively connected to the V3 port, the V2 port and the V1 port of the plug detection module. The reset module includes a first reset switch RESET, one end of the first reset switch RESET is connected to the PC6 port of the main controller chip ATMEGA328P-AU, the other end is grounded to GND, and the button is reset by low voltage.

The main controller chip ATMEGA328P-AU is the CPU of the system of the present invention, the second LED D2 is the CPU work indicator, the first reset switch RESET is a manual low-level reset module, and the operating frequency of the first crystal oscillator XTAL is 16MHz.

As preferably, described CPU controller adopts the main controller of single-chip ATMEGA328P-AU, and ATMEGA328P-AU main controller of the present invention is the RISC micro-controller of Atmel Company AVR series, and it compares traditional CISC aspect instruction and data throughput capacity Structs are many times faster. The clock frequency can reach up to 20MHz, with rich on-chip analog and digital peripherals, high performance, low power consumption, and high cost performance, which can meet the needs of signal processing of various sensing units.

Preferably, the plug detection module adopts a triple detection structure, which includes photoelectric beam signal detection, switch press signal detection and strain gauge mechanical signal detection, wherein the photoelectric beam signal and switch press signal detection belong to digital quantity detection, and the strain gauge mechanical signal detection The signal detection belongs to the analog quantity detection, and the accuracy of the detection result is guaranteed through the triple detection of the two signals of the digital quantity and the analog quantity of the plug.

Preferably, the chip of the power supply module is a 7805 chip, and its internal circuit has functions of overvoltage protection, overcurrent protection, and overheat protection, so that its performance is very stable, and an output current of more than 1A can be realized.

Preferably, the thyristor switch control part adopts Philips' BTA20-600B dual triac AC switch and triode SS8050 drive circuit.

To sum up, the present invention uses the plug detection module to judge whether the plug is inserted into the socket and transmits the detection data to the CPU. The CPU performs multiple analyzes and then controls the switching of the AC power supply of the socket to achieve the purpose of intelligent anti-shock and ensure the use process. personal safety. This design reduces the complexity and cost of the hardware, improves the accuracy of the plug detection system, has a modular design, is easy to maintain, and has broad market application prospects.

Claims (9)

1. the intelligent electric-shock protection socket system based on plug identification, it is characterized in that, comprise CPU main controller module, plug detection module, power module, reverse-blocking tetrode thyristor module and reseting module, described plug detection module, power module, reverse-blocking tetrode thyristor module are all connected with CPU main controller module with reseting module; Plug detection module gathers Plug Info, the signal of CPU main controller module to the collection of plug detection module is analyzed and is judged that rear output drive signal controls reverse-blocking tetrode thyristor module, the break-make of reverse-blocking tetrode thyristor module controls socket power, reseting module resets to CPU main controller module running status, and power module provides DC power supply to CPU main controller module, plug detection module, reverse-blocking tetrode thyristor module and reseting module;

Plug insertion socket has been identified whether by plug detection module, in real time the detection signal of plug detection module is transferred to CPU main controller module, the signal of CPU main controller module to the collection of plug detection module is analyzed and is judged that rear output drive signal controls reverse-blocking tetrode thyristor module break-make, the break-make of reverse-blocking tetrode thyristor module controls socket power, and then form intelligent electric-shock protection system.

2. the intelligent electric-shock protection socket system based on plug identification according to claim 1, it is characterized in that, described power module comprises LM7805 chip, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3 and the 4th electric capacity C4, wherein the positive pole of the first electric capacity C1 is connected with the input of input voltage vin, LM7805 chip respectively, the negative pole of the first electric capacity C1 is connected with one end of the 3rd electric capacity C3, the earth terminal of LM7805 chip respectively, and the other end of the 3rd electric capacity C3 is connected with input voltage vin; The positive pole of the second electric capacity C2 is connected with the output of LM7805 chip, out-put supply VCC respectively, and the negative pole of the second electric capacity C2 is connected with the earth terminal of LM7805 chip; One end of 4th electric capacity C4 is connected with the earth terminal of LM7805 chip, the other end is connected with the output of LM7805 chip; The earth terminal ground connection GND of LM7805 chip; Described Vin is the input voltage after transformer pressure-reducing rectification, by this power module, Vin is converted to the out-put supply VCC of 5V, and out-put supply VCC is as the power supply of CPU main controller module, plug detection module, reverse-blocking tetrode thyristor module and reseting module.

3. the intelligent electric-shock protection socket system based on plug identification according to claim 1, it is characterized in that, described plug detection module comprises photoelectricity reciprocal signal testing circuit, switch press signal deteching circuit and foil gauge mechanical signal testing circuit, described photoelectricity reciprocal signal testing circuit, switch press signal deteching circuit are that digital quantity detects, and described foil gauge mechanical signal testing circuit is analog signal detection; CPU main controller module analysis and judge the Output rusults of these three testing circuits, when three testing circuits judge there is plug insertion socket simultaneously, CPU main controller module exports high level and makes the conducting of reverse-blocking tetrode thyristor module controls socket power.

4. the intelligent electric-shock protection socket system based on plug identification according to claim 1, it is characterized in that, described reverse-blocking tetrode thyristor module comprises the 8th resistance R8, 9th resistance R9, tenth resistance R10, first light-emitting diode D1, first triode SS8050, first bidirectional triode thyristor BTA20-600B, wherein the 8th resistance R8 one end is connected with the first light-emitting diode D1 anode, the other end is connected with VCC, 9th resistance R9 one end is connected with the base stage of the first triode SS8050, the other end is V4 port, tenth resistance R10 one end is connected with the emitter of the first bidirectional triode thyristor BTA20-600B, other end ground connection GND, the negative electrode of the first light-emitting diode D1 is connected with the collector electrode of the first triode SS8050, the first anode of the first bidirectional triode thyristor BTA20-600B is connected with AC power live wire input AC+, second plate is connected with AC power fire wire output end AC-Load, control pole to be connected with the emitter of the first triode SS8050,

First light-emitting diode D1 is ac power switch indicator light, first triode SS8050 is for driving triode, V4 port is connected with CPU main controller module, when V4 port exports as low level, the first triode SS8050 is driven to end, the control very low level of the first bidirectional triode thyristor BTA20-600B, the first bidirectional triode thyristor BTA20-600B turns off, socket power-off; When V4 port exports as high level, drive the first triode SS8050 conducting, the control very high level of the first bidirectional triode thyristor BTA20-600B, the first bidirectional triode thyristor BTA20-600B conducting, socket is charged.

5. intelligent electric-shock protection socket system according to claim 1, is characterized in that, described CPU main controller module comprises master controller chip ATMEGA328P-AU, 11 resistance R11, 12 resistance R12, 5th electric capacity C5, 6th electric capacity C6, 7th electric capacity C7, 8th electric capacity C8, second light-emitting diode D2, first crystal oscillator XTAL and the first download port J1, wherein one end of the 11 resistance R11 is connected with the PC6 port of master controller chip ATMEGA328P-AU, the other end is connected with VCC, and one end of the 12 resistance R12 is connected with the PB4 port of master controller chip ATMEGA328P-AU, the other end is connected with the anode of the second light-emitting diode D2, and one end of the 5th electric capacity C5 is connected with the PC6 port of master controller chip ATMEGA328P-AU, the other end is connected with No. 5 pin DTR of the first download port J1, and one end of the 6th electric capacity C6 is connected with the AREF port of master controller chip ATMEGA328P-AU, one end of other end ground connection GND, the 7th electric capacity C7 is connected with the PB6 port of master controller chip ATMEGA328P-AU, one end of other end ground connection GND, the 8th electric capacity C8 is connected with the PB7 port of master controller chip ATMEGA328P-AU, No. 1 pin ground connection GND of other end ground connection GND, the first download port J1, No. 2 pins meet VCC, No. 3 pin RXD are connected with the PD0 port of master controller chip ATMEGA328P-AU, No. 4 pin TXD are connected with the PD1 port of master controller chip ATMEGA328P-AU, No. 5 pin DTR are connected with the PC6 port of master controller chip ATMEGA328P-AU by the 5th electric capacity C5, the PB0 port of master controller chip ATMEGA328P-AU is connected with the V4 port of reverse-blocking tetrode thyristor module, and the PB1 port of master controller chip ATMEGA328P-AU, PB2 port, PB3 port are connected with the V3 port of plug detection module, V2 port, V1 port respectively.

6. intelligent electric-shock protection socket system according to claim 1, it is characterized in that, described reseting module comprises the first reset switch RESET, one end of first reset switch RESET is connected with the PC6 port of master controller chip ATMEGA328P-AU, other end ground connection GND, adopts button low-voltage reset.

7. intelligent electric-shock protection socket system according to claim 3, it is characterized in that, described photoelectricity reciprocal signal testing circuit comprises the first resistance R1, second resistance R2, 3rd resistance R3, photoelectric correlated cell U1, second comparator chip U2 and LM393, wherein one end of the first resistance R1 is connected with the anode input of photoelectric correlated cell U1, the other end is connected with VCC, one end of second resistance R2 is connected with the anode output end of photoelectric correlated cell U1, the other end is connected with VCC, one end of 3rd resistance R3 is connected with VCC, other end ground connection GND, 3rd end and adjustable side are connected with the inverting input of comparator chip U2, the output of the second comparator chip U2 is the V1 port of photoelectricity reciprocal signal testing circuit,

After plug insertion socket, block to the photoemission cell signal in photoelectric correlated cell U1, photoelectric receiving tube does not receive photosignal and is then in closed condition, second comparator chip U2 positive input is high level, and the output of the second comparator chip U2 and V1 port export a high level digital signal and be transferred to CPU main controller module; When without plug insertion socket, photoelectric correlated cell U1 is open-minded, and the second comparator chip U2 positive input is low level, and the output of the second comparator chip U2 and V1 port export a low level digital signal and be transferred to CPU main controller module; By the low and high level identification of V1 port, CPU main controller module judges whether plug inserts socket.

8. intelligent electric-shock protection socket system according to claim 3, it is characterized in that, described switch press signal deteching circuit comprises the 4th resistance R4, 5th resistance R5, touch pressing self-resetting switch S1, 3rd comparator chip U3 and LM393, wherein one end of the 4th resistance R4 is connected with the normal phase input end of the 3rd comparator chip U3, the other end is connected with VCC, touch pressing self-resetting switch S1 one end to be connected with the normal phase input end of the 3rd comparator chip U3, other end ground connection GND, 5th resistance R5 one end ground connection GND, the other end is connected with VCC, 3rd end and adjustable side are connected with the inverting input of the 3rd comparator chip U3,

When a plug is to be inserted into the socket, touch pressing self-resetting switch S1 conducting, the 3rd comparator chip U3 and LM393 positive input are high level, and the output of the 3rd comparator chip U3 and V2 port export high level digital signal and be transferred to CPU main controller module; When without plug insertion socket, touch pressing self-resetting switch S1 to turn off, 3rd comparator chip U3 positive input is low level, the output of the 3rd comparator chip U3 and V2 port output low level numeral letter are transferred to CPU main controller module, by the low and high level identification of V2 port, CPU main controller module judges whether plug inserts socket.

9. intelligent electric-shock protection socket system according to claim 3, it is characterized in that, described foil gauge mechanical signal testing circuit comprises the first strain paster Y1, second strain paster Y2, 6th resistance R6, 7th resistance R7, operational amplifier U4, wherein first strain paster Y1 one end is connected with the inverting input of operational amplifier U4, the other end is connected with VCC, second strain paster Y2 one end is connected with the inverting input of operational amplifier U4, other end ground connection GND, 6th resistance R6 one end is connected with the normal phase input end of operational amplifier U4, the other end is connected with VCC, 7th resistance R7 one end is connected with the normal phase input end of operational amplifier U4, other end ground connection GND,

First strain paster Y1 and second strain paster Y2 is attached in Die for Reeds of Connector Jack, when there being plug insertion socket, Die for Reeds of Connector Jack is out of shape, metal foil in first strain paster Y1 and second strain paster Y2 elongates or shortens along with strain, and then resistance value changes, by Wheatstone bridge, the resistance value of change is converted into the magnitude of voltage of change, this voltage amplification is exported to CPU main controller module from the output of operational amplifier U4 and V3 port by operational amplifier U4, CPU main controller module has judged whether plug insertion socket by the voltage value of V3 port.