CN103035106B - Wireless remote control power-stealing detector - Google Patents

Abstract

A wireless remote control electricity stealing detector, which consists of a main control CPU, a crystal oscillator circuit, a reset circuit, a communication interface circuit, a buzzer control circuit, a keyboard control circuit, a liquid crystal display circuit, a power supply circuit, a wireless data sending circuit and a wireless data receiving circuit Composition, it can generate remote control transmission codes according to the remote control transmission parameters preset by the inspectors under the common remote control frequency, and automatically transmit them in sequence. When the illegal remote control receiving device in the electric stealing meter receives the matching code Action, stop or start the work of the meter, so that the inspector can find the electricity-stealing meter, so as to effectively stop the remote-control stealing behavior; at the same time, in the standby monitoring mode, it can automatically scan the abnormal remote-control transmitting devices around, and detect the abnormal The abnormal wireless data transmitted by the normal remote control transmitter into the air is decoded, and various technical parameters of the abnormal remote control transmitter can be found in a timely and effective manner, providing technical support for preventing remote control stealing electricity.

Description

Wireless Remote Control Electricity Theft Detector

technical field

The invention relates to a electricity theft detector, in particular to a wireless remote control electricity theft detector.

Background technique

At present, in view of the behavior of using remote control to control the work of electric meters in the society to achieve the purpose of stealing electricity, the existing electric stealing detection devices usually cannot function normally to find abnormal working electric meters, so that they cannot effectively prevent remote stealing. electrical behavior. The above are the deficiencies in the prior art.

Contents of the invention

The purpose of the present invention is: to overcome the deficiencies of the prior art, to design a wireless remote control electric stealing detector, which can detect abnormally working electric meters with illegal remote control receiving devices, thereby effectively preventing remote electric stealing behavior .

The purpose of the present invention can be achieved through the following technical solutions:

This wireless remote control electricity stealing detector is composed of main control CPU, crystal oscillator circuit, reset circuit, communication interface circuit, buzzer control circuit, keyboard control circuit, liquid crystal display circuit, power supply circuit, wireless data sending circuit and wireless data receiving circuit , it is characterized in that: as the control part of the whole system, the main control CPU is used to control the ringing of the buzzer, the input of the keyboard, the display of the LCD screen, the communication of data, the transmission of wireless data and the reception of wireless data; the crystal oscillator circuit It is used to provide the working clock for the main control CPU; the reset circuit is used to provide the power-on reset signal for the main control CPU; the communication interface circuit is used to connect the main control CPU with the programmer, so as to write programs to the main control CPU through the programmer; The buzzer control circuit is used to stop the buzzer, so that people can get the alarm information; the keyboard control circuit is used to input the level signal to the main control CPU, so that the main control CPU can judge whether there is a valid signal according to the change of the level signal. key input, so that the remote control transmission parameters set by the inspector are input to the main control CPU; the liquid crystal display circuit is used to input the remote control transmission parameters set by the detection personnel, the remote control transmission code generated after the remote control transmission parameters are processed by the main control CPU, And the various technical parameters of the abnormal remote control transmitting device obtained after decoding and processing the abnormal wireless data existing in the air by the main control CPU are displayed on the LCD screen, and provide backlight for the LCD screen; the power supply circuit is used to provide 5V and 7.4 V DC voltage; the wireless data sending circuit is used to convert the remote control transmission code generated after the main control CPU processes the remote control transmission parameters into radio waves, and transmits it in the air through the antenna; the wireless data receiving circuit is used to receive the radio waves existing the abnormal wireless data in the air, and input the abnormal wireless data into the main control CPU after conditioning, so as to facilitate the main control CPU to decode and process the data.

There are macro crystal single-chip microcomputer U1 and power filter capacitor C1 in the main control CPU of the present invention, and the model of its macro crystal single-chip microcomputer U1 is STC12C5A60S2; There are 12MHZ crystal oscillator Y1 and crystal oscillator compensation capacitor C3 and C4 in the crystal oscillator circuit; There is resistance in the reset circuit R1 and polarized capacitor C2; communication interface circuit with 4-core terminal P1 and power filter capacitor C5; buzzer control circuit with PNP transistor Q1 and buzzer LS1; keyboard control circuit with pull-up resistor RK1 ～RK6 and buttons S1～S7; the liquid crystal display circuit has a liquid crystal interface circuit and a backlight circuit, wherein the liquid crystal interface circuit has a liquid crystal interface P5 and a liquid crystal contrast adjustment resistor RL1, and the liquid crystal interface P5 is plugged with a liquid crystal screen, There are PNP transistor Q5 and resistors R10 and R11 in the backlight circuit; there are switch wiring interface P2, battery interface P3, charging interface P4, regulated power supply chip U2 and power filter capacitors E2 and C7 in the power supply circuit, and the regulated power supply chip U2 The model is REG1117, the switch wiring interface P2 is connected with a switch, the battery interface P3 is connected with a 7.4V battery, and the charging interface P4 is connected with a charger; the wireless data transmission circuit has a sound meter resonator U3 and an NPN transistor Q2 and Q4, inductors L1 and L2, capacitors C6 and C8, resistors R4 and R8, ground potential isolation resistor R9, and antenna interface P6, the model of the SAW resonator U3 is UR315A, and the antenna interface P6 is connected with an antenna ; There are wireless receiving module U4, NPN transistor Q3, resistors R3, R5, R6 and R7 and power filter capacitor E1 in the wireless data receiving circuit, and the model of the wireless receiving module U4 is WXLCM1;

The connection relationship is as follows: in the main control CPU, the 38th pin of the macro crystal microcontroller U1 is connected to 5V DC voltage, and at the same time connected to the positive pole of the power filter capacitor C1, and the negative pole of the power filter capacitor C1 is grounded; the crystal oscillator circuit and the main control CPU Between the terminals X1 and X2 at both ends of the crystal oscillator Y1 are respectively connected to the 15th and 14th pins of the macro crystal microcontroller U1; between the reset circuit and the main control CPU, the negative electrode of the polar capacitor C2 is connected to the reset signal terminal RST to The 4th pin of the macro-chip microcomputer U1; between the communication interface circuit and the main control CPU, the 2nd and 3rd pins of the 4-core terminal P1 are respectively connected to the 7th and 5th pins of the macro-chip microcomputer U1; Between the buzzer control circuit and the main control CPU, the base lead-out signal terminal Bell of the PNP transistor Q1 is connected to the 21st pin of the macrochip microcontroller U1; between the keyboard control circuit and the main control CPU, the KEY1 terminal of the button S1, The KEY2 terminal of S2, the KEY3 terminal of S3, the KEY4 terminal of S4, the KEY5 terminal of S5, the KEY6 terminal of S6 and the RST terminal of S7 are respectively connected to the 39th, 40th, 41st, 42nd and 42nd terminals of the macrochip microcontroller U1 43. The 44th and 4th pins; in the liquid crystal display circuit, one end of the liquid crystal contrast adjustment resistor RL1 leads to the signal VOUT and connects to the 18th pin of the liquid crystal interface P5, and the other end of the liquid crystal contrast adjustment resistor RL1 is grounded, and the liquid crystal contrast adjustment The adjustment contact end of the resistor RL1 leads to the signal VO connected to the third pin of the liquid crystal interface P5, the base of the PNP transistor Q5 is connected to one end of the resistor R10, the other end of the resistor R10 is connected to one end of the resistor R11, and the signal terminal LCD_LG is drawn out , the other end of the resistor R11 is connected to the emitter of the PNP transistor Q5, and connected to a 5V DC voltage, and the collector of the PNP transistor Q5 is connected to the 20th pin of the liquid crystal interface P5; between the liquid crystal display circuit and the main control CPU, The signal terminal LCD_LG drawn from the other end of the resistor R10 is connected to the 22nd pin of the macrochip U1, and the 4th to 17th pins of the LCD interface P5 are respectively connected to the 37th, 36th, 35th, and 35th pins of the macrochip U1. 34, 33rd, 32nd, 31st, 30th, 29th, 27th, 26th, 25th, 24th and 23rd pins; in the power supply circuit, the first pin of the switch wiring interface P2 is connected to the battery The 2nd pin of the interface P3, the 2nd pin of the switch wiring interface P2 is connected to the 3rd pin of the regulated power chip U2, the 1st pin of the regulated power chip U2 is grounded, the 2nd pin of the regulated power chip U2 Short circuit with the 4th pin, output 5V DC voltage, and connect the positive pole of the power filter capacitor E2 and one end of the power filter capacitor C7, the other end of the power filter capacitor C7 is connected to the negative pole of the power filter capacitor E2, and at the same time connect to the stable The first pin of the piezoelectric power chip U2, the first and second pins of the charging interface P4 are respectively connected to the first and second pins of the battery interface P3, and the second pin of the battery interface P3 outputs 7.4V DC Voltage; in the wireless data transmission circuit, the first pin of the SAW resonator U3 is connected to one end of the inductor L1 and one end of the capacitor C8, and the other end of the inductor L1 is connected to the collector of the NPN transistor Q2, and at the same time connected to the capacitor C6 The other end of the capacitor C8 is connected to the emitter of the NPN transistor Q2, the base of the NPN transistor Q2 is connected to one end of the resistor R4, and at the same time connected to the second pin of the SAW resonator U3, the resistor R4 The other end of the NPN transistor Q4 is connected to the emitter of the NPN transistor Q2, and the emitter of the NPN transistor Q4 is connected to one end of the ground potential isolation resistor R9, and at the same time connected to the SAW resonance The third pin of the device U3, the other end of the ground potential isolation resistor R9 is grounded, the base of the NPN transistor Q4 is connected to one end of the resistor R8, and the first and second pins of the antenna interface P6 are short-circuited to the other end of the capacitor C6 One end is connected; between the wireless data sending circuit and the power circuit, the other end of the inductor L2 is connected to the second pin of the switch wiring interface P2; between the wireless data sending circuit and the main control CPU, the other end of the resistor R8 is connected to the macro The first pin of the single-chip microcomputer U1; in the wireless data receiving circuit, the first pin of the wireless receiving module U4 is connected to one end of the resistor R5, and at the same time connected to the negative pole of the power filter capacitor E1, and the other end of the resistor R5 is grounded, and the power filter The positive pole of capacitor E1 is connected to 5V DC voltage, and one end of resistor R3 is connected at the same time. The other end of resistor R3 is connected to the fourth pin of wireless receiving module U4, and the second and third pins of wireless receiving module U4 are shorted and then connected to One end of the resistor R7, the other end of the resistor R7 is connected to the base of the NPN transistor Q3, the emitter of the NPN transistor Q3 is grounded, the collector of the NPN transistor Q3 is connected to one end of the resistor R6, and the other end of the resistor R6 is connected to 5V DC Voltage; between the wireless data receiving circuit and the main control CPU, the collector of the NPN transistor Q3 is connected to the eighth pin of the macrochip microcontroller U1.

In the present invention, in the power supply circuit, a 7.4V lithium battery is connected to the battery interface P3.

In the present invention, in the liquid crystal display circuit, the liquid crystal interface P5 is plugged with a 128*64 dot matrix liquid crystal screen.

In the present invention, in the wireless data sending circuit, the antenna interface P6 is connected with a small wireless carrier antenna.

The advantage of the present invention is: the wireless remote control electricity stealing detector can generate remote control transmission codes according to the remote control transmission parameters (working frequency, coding rate) preset by the testing personnel under the common remote control frequency (315M), and automatically transmit the remote control The codes are sent out in sequence, and when the illegal remote control receiving device in the electricity stealing meter receives the matching code, it will take action to stop or start the work of the meter, so that the inspector can find the meter that is not working normally, so as to effectively Prevent remote control stealing behavior; at the same time, the wireless remote control stealing detector can also automatically scan the surrounding abnormal remote control transmitters in the standby monitoring mode, and decode the abnormal wireless data transmitted into the air by abnormal remote control transmitters Processing can timely and effectively discover various technical parameters of abnormal remote control transmitters, and provide technical support for preventing remote control stealing electricity.

Description of drawings

Fig. 1 is a circuit block diagram of the present invention;

Figure 2 is a schematic diagram of the main control CPU;

Figure 3 is a schematic diagram of the crystal oscillator circuit;

Fig. 4 is a schematic diagram of a reset circuit;

Fig. 5 is a schematic diagram of the communication interface circuit;

Fig. 6 is a schematic diagram of the buzzer control circuit;

Fig. 7 is a schematic diagram of the keyboard control circuit;

Fig. 8 is a schematic diagram of a liquid crystal display circuit;

Fig. 9 is a schematic diagram of a power supply circuit;

Fig. 10 is a schematic diagram of a wireless data transmission circuit;

Figure 11 is a schematic diagram of the wireless data receiving circuit.

Detailed ways

As shown in Figure 1-11, the wireless remote control electric stealing detector consists of a main control CPU2, a crystal oscillator circuit 9, a reset circuit 8, a communication interface circuit 10, a buzzer control circuit 1, a keyboard control circuit 3, and a liquid crystal display circuit 6 , power supply circuit 7, wireless data sending circuit 4 and wireless data receiving circuit 5, it is characterized in that: the main control CPU2 is used as the control part of the whole system, and is used to control the beeping of the buzzer, the input of the keyboard, and the display of the LCD screen , data communication, transmission of wireless data and reception of wireless data; crystal oscillator circuit 9 is used to provide operating clock for main control CPU2; reset circuit 8 is used for main control CPU2 to provide power-on reset signal; communication interface circuit 10 is used for The main control CPU2 is connected with the programmer, so that the program is written into the main control CPU2 by the programmer; the buzzer control circuit 1 is used to realize the ringing of the buzzer, so that people can obtain alarm information; the keyboard control circuit 3 is used to The main control CPU2 inputs the level signal, so that the main control CPU2 judges whether there is an effective button input according to the change of the level signal, so that the remote control emission parameters set by the inspector are input to the main control CPU2; the liquid crystal display circuit 6 is used for detecting The remote control transmission parameters set by personnel, the remote control transmission code generated after the main control CPU2 processes the remote control transmission parameters, and the various technologies of the abnormal remote control transmission device obtained after the main control CPU2 decodes and processes the abnormal wireless data existing in the air The parameters are displayed on the LCD screen and provide backlight for the LCD screen; the power supply circuit 7 is used to provide 5V and 7.4V DC voltage for the system; the wireless data transmission circuit 4 is used to process the remote control transmission code generated after the main control CPU2 processes the remote control transmission parameters Convert it into radio waves, and transmit them in the air through the antenna; the wireless data receiving circuit 5 is used to receive the abnormal wireless data existing in the air in the form of radio waves, and input the abnormal wireless data into the main control CPU2 after conditioning, It is convenient for the main control CPU2 to decode and process data.

There are macro crystal single-chip microcomputer U1 and power filter capacitor C1 in the described main control CPU2, and the model of its macro crystal single-chip microcomputer U1 is STC12C5A60S2; There are 12MHZ crystal oscillator Y1 and crystal oscillator compensation capacitors C3 and C4 in the crystal oscillator circuit 9; Resistors are arranged in the reset circuit 8 R1 and polarized capacitor C2; communication interface circuit 10 has 4-core terminal P1 and power filter capacitor C5; buzzer control circuit 1 has PNP transistor Q1 and buzzer LS1; keyboard control circuit 3 has upper Pull resistors RK1-RK6 and buttons S1-S7; liquid crystal display circuit 6 has a liquid crystal interface circuit and a backlight circuit, wherein the liquid crystal interface circuit has a liquid crystal interface P5 and a liquid crystal contrast adjustment resistor RL1, and the liquid crystal interface P5 is plugged into There is an LCD screen, a PNP transistor Q5 and resistors R10 and R11 in the backlight circuit; a switch wiring interface P2, a battery interface P3, a charging interface P4, a regulated power supply chip U2, and power filter capacitors E2 and C7 in the power supply circuit 7. The model of the regulated power supply chip U2 is REG1117, the switch wiring interface P2 is connected with a switch, the battery interface P3 is connected with a 7.4V battery, and the charging interface P4 is connected with a charger; the wireless data transmission circuit 4 has a sound meter resonance device U3, NPN transistors Q2 and Q4, inductors L1 and L2, capacitors C6 and C8, resistors R4 and R8, ground potential isolation resistor R9 and antenna interface P6, the model of the SAW resonator U3 is UR315A, the antenna An antenna is connected to the interface P6; the wireless data receiving circuit 5 has a wireless receiving module U4, an NPN transistor Q3, resistors R3, R5, R6 and R7, and a power filter capacitor E1, and the wireless receiving module U4 is WXLCM1;

The connection relationship is: in the main control CPU2, the 38th pin of the macro crystal microcontroller U1 is connected to a 5V DC voltage, and at the same time connected to the positive pole of the power filter capacitor C1, and the negative pole of the power filter capacitor C1 is grounded; the crystal oscillator circuit 9 is connected to the main control CPU2 between the terminals X1 and X2 at both ends of the crystal oscillator Y1 are respectively connected to the 15th and 14th pins of the macro crystal microcontroller U1; between the reset circuit 8 and the main control CPU2, the negative pole of the polar capacitor C2 leads to the reset signal terminal RST Connect to the 4th pin of the macro-chip microcomputer U1; between the communication interface circuit 10 and the main control CPU2, the 2nd and 3rd pins of the 4-core terminal P1 are respectively connected to the 7th and 5th pins of the macro-chip microcomputer U1 pin; between the buzzer control circuit 1 and the main control CPU2, the base lead-out signal terminal Bell of the PNP transistor Q1 is connected to the 21st pin of the macrochip microcontroller U1; between the keyboard control circuit 3 and the main control CPU2, the key The KEY1 terminal of S1, the KEY2 terminal of S2, the KEY3 terminal of S3, the KEY4 terminal of S4, the KEY5 terminal of S5, the KEY6 terminal of S6 and the RST terminal of S7 are respectively connected to the 39th, 40th and 41st terminals of the macrochip microcontroller U1 , 42nd, 43rd, 44th and 4th pins; in the liquid crystal display circuit 6, one end of the liquid crystal contrast adjustment resistor RL1 leads to the signal VOUT and is connected to the 18th pin of the liquid crystal interface P5, and the other end of the liquid crystal contrast adjustment resistor RL1 One end is grounded, the adjustment contact end of the liquid crystal contrast adjustment resistor RL1 leads to the signal VO connected to the third pin of the liquid crystal interface P5, the base of the PNP transistor Q5 is connected to one end of the resistor R10, and the other end of the resistor R10 is connected to one end of the resistor R11 , and leads to the signal terminal LCD_LG, the other end of the resistor R11 is connected to the emitter of the PNP transistor Q5, and connected to a 5V DC voltage, the collector of the PNP transistor Q5 is connected to the 20th pin of the liquid crystal interface P5; the liquid crystal display circuit 6 Between the main control CPU2, the signal terminal LCD_LG drawn from the other end of the resistor R10 is connected to the 22nd pin of the macrochip microcontroller U1, and the 4th to 17th pins of the liquid crystal interface P5 are respectively connected to the 37th and 17th pins of the macrochip microcontroller U1. The 36th, 35th, 34th, 33rd, 32nd, 31st, 30th, 29th, 27th, 26th, 25th, 24th and 23rd pins; in the power circuit 7, switch wiring interface The first pin of P2 is connected to the second pin of the battery interface P3, the second pin of the switch connection interface P2 is connected to the third pin of the regulated power supply chip U2, and the first pin of the regulated power supply chip U2 is grounded. After the 2nd and 4th pins of the regulated power supply chip U2 are short-circuited, the output 5V DC voltage is connected to the positive pole of the power filter capacitor E2 and one end of the power filter capacitor C7, and the other end of the power filter capacitor C7 is connected to the power filter capacitor E2 and connected to the first pin of the regulated power supply chip U2 at the same time, the first and second pins of the charging interface P4 are respectively connected to the first and second pins of the battery interface P3, and the battery The second pin of the port P3 outputs 7.4V DC voltage; in the wireless data transmission circuit 4, the first pin of the SAW resonator U3 is connected to one end of the inductor L1 and one end of the capacitor C8, and the other end of the inductor L1 is connected to the NPN The collector of the NPN transistor Q2 is connected to one end of the capacitor C6 at the same time, the other end of the capacitor C8 is connected to the emitter of the NPN transistor Q2, and the base of the NPN transistor Q2 is connected to one end of the resistor R4 and simultaneously connected to the acoustic The second pin of the resonator U3, the other end of the resistor R4 is connected to one end of the inductor L2, the collector of the NPN transistor Q4 is connected to the emitter of the NPN transistor Q2, and the emitter of the NPN transistor Q4 is isolated from the ground potential resistor R9 The other end of the ground potential isolation resistor R9 is connected to the ground, and the base of the NPN transistor Q4 is connected to one end of the resistor R8, and the first and second pins of the antenna interface P6 The second pin is short-circuited and connected to the other end of the capacitor C6; between the wireless data transmission circuit 4 and the power supply circuit 7, the other end of the inductor L2 is connected to the second pin of the switch wiring interface P2; the wireless data transmission circuit 4 Between the main control CPU2, the other end of the resistor R8 is connected to the first pin of the macrochip microcontroller U1; in the wireless data receiving circuit 5, the first pin of the wireless receiving module U4 is connected to one end of the resistor R5, and simultaneously connected to The negative pole of the power filter capacitor E1, the other end of the resistor R5 is grounded, the positive pole of the power filter capacitor E1 is connected to a 5V DC voltage, and one end of the resistor R3 is connected at the same time, and the other end of the resistor R3 is connected to the fourth pin of the wireless receiving module U4. The 2nd and 3rd pins of the wireless receiving module U4 are short-circuited and connected to one end of the resistor R7, and the other end of the resistor R7 is connected to the base of the NPN transistor Q3, the emitter of the NPN transistor Q3 is grounded, and the NPN transistor Q3’s The collector is connected to one end of the resistor R6, and the other end of the resistor R6 is connected to a 5V DC voltage; between the wireless data receiving circuit 5 and the main control CPU2, the collector of the NPN transistor Q3 is connected to the 8th pin of the macrochip microcontroller U1.

In the power supply circuit 7, a 7.4V lithium battery is connected to the battery interface P3. In the liquid crystal display circuit 6, a 128×64 dot matrix liquid crystal screen is plugged into the liquid crystal interface P5. In the wireless data sending circuit 4, a wireless carrier small antenna is connected to the antenna interface P6.

Claims (4)

1. A wireless remote control stealing detector, consisting of a main control CPU (2), a crystal oscillator circuit (9), a reset circuit (8), a communication interface circuit (10), a buzzer control circuit (1), and a keyboard control circuit (3), liquid crystal display circuit (6), power supply circuit (7), wireless data sending circuit (4) and wireless data receiving circuit (5), the characteristic is: main control CPU (2) is the control part of the whole system , used to control the beeping of the buzzer, keyboard input, LCD display, data communication, wireless data transmission and wireless data reception; the crystal oscillator circuit (9) is used to provide work for the main control CPU (2) Clock; the reset circuit (8) is used to provide a power-on reset signal for the main control CPU (2); the communication interface circuit (10) is used to connect the main control CPU (2) with the programmer, so that the main control CPU can be sent to the main control CPU through the programmer (2) Write the program; the buzzer control circuit (1) is used to stop the buzzer, so that people can obtain alarm information; the keyboard control circuit (3) is used to input the level to the main control CPU (2) signal, so that the main control CPU (2) judges whether there is an effective key input according to the change of the level signal, so as to input the remote control transmission parameters set by the inspector to the main control CPU (2); the liquid crystal display circuit (6) is used for The remote control transmission parameters set by the inspector, the remote control transmission code generated after the main control CPU (2) processes the remote control transmission parameters, and the abnormal wireless data obtained after the main control CPU (2) decodes and processes the abnormal wireless data in the air The technical parameters of the normal remote control transmitting device are displayed on the LCD screen and provide backlight for the LCD screen; the power supply circuit (7) is used to provide 5V and 7.4V DC voltage for the system; the wireless data transmission circuit (4) is used to transfer the main The remote control transmission code generated by the control CPU (2) after processing the remote control transmission parameters is converted into radio waves, and transmitted in the air through the antenna; the wireless data receiving circuit (5) is used to receive abnormal wireless data that exists in the air in the form of radio waves , and input the abnormal wireless data into the main control CPU (2) after conditioning, so as to facilitate the main control CPU (2) to decode and process the data; The main control CPU (2) has a macrocrystal single-chip microcomputer U1 and a power filter capacitor C1, and the model of the macrocrystal single-chip microcomputer U1 is STC12C5A60S2; the crystal oscillator circuit (9) has a 12MHZ crystal oscillator Y1 and crystal oscillator compensation capacitors C3 and C4; The circuit (8) has a resistor R1 and a polarized capacitor C2; the communication interface circuit (10) has a 4-core terminal P1 and a power filter capacitor C5; the buzzer control circuit (1) has a PNP transistor Q1 and a buzzer buzzer LS1; the keyboard control circuit (3) has pull-up resistors RK1-RK6 and buttons S1-S7; the liquid crystal display circuit (6) has a liquid crystal interface circuit and a backlight circuit, wherein the liquid crystal interface circuit has a liquid crystal interface P5 and The liquid crystal contrast adjustment resistor RL1, the liquid crystal interface P5 is plugged with a liquid crystal screen, the backlight circuit has a PNP transistor Q5 and resistors R10 and R11; the power supply circuit (7) has a switch wiring interface P2, a battery interface P3, a charging Interface P4, regulated power supply chip U2, and power filter capacitors E2 and C7. The model of the regulated power supply chip U2 is REG1117. The switch connection interface P2 is connected with a switch, and the battery interface P3 is connected with a 7.4V battery. A charger is connected to the interface P4; the wireless data transmission circuit (4) has a sound meter resonator U3, NPN transistors Q2 and Q4, inductors L1 and L2, capacitors C6 and C8, resistors R4 and R8, ground potential isolation resistor R9 and Antenna interface P6, the model of the SAW resonator U3 is UR315A, the antenna interface P6 is connected with an antenna; the wireless data receiving circuit (5) has a wireless receiving module U4, an NPN transistor Q3, resistors R3, R5, R6 and R7 and the power filter capacitor E1, the model of the wireless receiving module U4 is WXLCM1; The connection relationship is as follows: in the main control CPU (2), the 38th pin of the macro crystal microcontroller U1 is connected to a 5V DC voltage, and at the same time connected to the positive pole of the power filter capacitor C1, and the negative pole of the power filter capacitor C1 is grounded; the crystal oscillator circuit (9 ) and the main control CPU (2), the lead-out terminals X1 and X2 at both ends of the crystal oscillator Y1 are respectively connected to the 15th and 14th pins of the macro crystal microcontroller U1; between the reset circuit (8) and the main control CPU (2) , the negative electrode of the polarized capacitor C2 leads to the reset signal terminal RST and is connected to the fourth pin of the macrochip microcontroller U1; between the communication interface circuit (10) and the main control CPU (2), the second and the second of the 4-core terminal P1 The 3rd pin is respectively connected to the 7th and 5th pins of the macro crystal microcontroller U1; between the buzzer control circuit (1) and the main control CPU (2), the base of the PNP transistor Q1 leads to the signal terminal Bell to connect To the 21st pin of the macro crystal microcontroller U1; between the keyboard control circuit (3) and the main control CPU (2), the KEY1 terminal of the key S1, the KEY2 terminal of the S2, the KEY3 terminal of the S3, the KEY4 terminal of the S4, and the KEY4 terminal of the S5 The KEY5 terminal, the KEY6 terminal of S6 and the RST terminal of S7 are respectively connected to the 39th, 40th, 41st, 42nd, 43rd, 44th and 4th pins of the macrochip microcontroller U1; in the liquid crystal display circuit (6) Inside, one end of the liquid crystal contrast adjustment resistor RL1 leads to the signal VOUT connected to the 18th pin of the liquid crystal interface P5, the other end of the liquid crystal contrast adjustment resistor RL1 is grounded, and the adjustment contact end of the liquid crystal contrast adjustment resistor RL1 leads to the signal VO connected to the liquid crystal interface The third pin of P5, the base of PNP transistor Q5 is connected to one end of resistor R10, the other end of resistor R10 is connected to one end of resistor R11, and the signal terminal LCD_LG is drawn out, and the other end of resistor R11 is connected to the emitter of PNP transistor Q5 Pole, and connected to 5V DC voltage, the collector of PNP transistor Q5 is connected to the 20th pin of liquid crystal interface P5; between the liquid crystal display circuit (6) and the main control CPU (2), the signal drawn from the other end of the resistor R10 The terminal LCD_LG is connected to the 22nd pin of the macrochip U1, and the 4th to 17th pins of the LCD interface P5 are respectively connected to the 37th, 36th, 35th, 34th, 33rd, 32nd, and 32nd pins of the macrochip U1. The 31st, 30th, 29th, 27th, 26th, 25th, 24th and 23rd pins; in the power supply circuit (7), the first pin of the switch wiring interface P2 is connected to the second pin of the battery interface P3 Pin, the 2nd pin of the switch wiring interface P2 is connected to the 3rd pin of the regulated power chip U2, the 1st pin of the regulated power chip U2 is grounded, the 2nd and 4th pins of the regulated power chip U2 After short circuit, output 5V DC voltage, and connect the positive pole of the power filter capacitor E2 and one end of the power filter capacitor C7, the other end of the power filter capacitor C7 is connected to the negative pole of the power filter capacitor E2, and at the same time connected to the voltage regulator chip U2 Pin 1, the first pin of the charging interface P4 The 1st and 2nd pins are respectively connected to the 1st and 2nd pins of the battery interface P3, and the 2nd pin of the battery interface P3 outputs a 7.4V DC voltage; in the wireless data sending circuit (4), the SAW resonator The first pin of U3 is connected to one end of the inductor L1 and one end of the capacitor C8, the other end of the inductor L1 is connected to the collector of the NPN transistor Q2, and is connected to one end of the capacitor C6 at the same time, and the other end of the capacitor C8 is connected to the NPN The emitter of the type transistor Q2, the base of the NPN type transistor Q2 is connected to one end of the resistor R4, and at the same time connected to the second pin of the SAW resonator U3, the other end of the resistor R4 is connected to one end of the inductor L2, and the NPN type transistor Q4 The collector of the NPN transistor Q2 is connected to the emitter, the emitter of the NPN transistor Q4 is connected to one end of the ground potential isolation resistor R9, and at the same time connected to the third pin of the SAW resonator U3, the ground potential isolation resistor R9 The other end of the NPN triode Q4 is connected to one end of the resistor R8, the first and second pins of the antenna interface P6 are short-circuited and connected to the other end of the capacitor C6; the wireless data transmission circuit (4) is connected to the power supply Between the circuit (7), the other end of the inductor L2 is connected to the second pin of the switch wiring interface P2; between the wireless data transmission circuit (4) and the main control CPU (2), the other end of the resistor R8 is connected to the macro crystal The first pin of the single-chip microcomputer U1; in the wireless data receiving circuit (5), the first pin of the wireless receiving module U4 is connected to one end of the resistor R5, and at the same time connected to the negative pole of the power filter capacitor E1, and the other end of the resistor R5 is grounded. The positive pole of the power filter capacitor E1 is connected to 5V DC voltage, and at the same time connected to one end of the resistor R3, the other end of the resistor R3 is connected to the 4th pin of the wireless receiving module U4, and the 2nd and 3rd pins of the wireless receiving module U4 are shorted Then connect one end of resistor R7, the other end of resistor R7 is connected to the base of NPN transistor Q3, the emitter of NPN transistor Q3 is grounded, the collector of NPN transistor Q3 is connected to one end of resistor R6, and the other end of resistor R6 is connected to 5V DC voltage; between the wireless data receiving circuit (5) and the main control CPU (2), the collector of the NPN transistor Q3 is connected to the 8th pin of the macrochip microcontroller U1. 2. The wireless remote control electricity theft detector according to claim 1, characterized in that: in the power supply circuit (7), a 7.4V lithium battery is connected to the battery interface P3. 3. The wireless remote control electric stealing detector according to claim 1 or 2, characterized in that: in the liquid crystal display circuit (6), a 128×64 dot matrix liquid crystal screen is plugged into the liquid crystal interface P5. 4. The wireless remote control electric stealing detector according to claim 1 or 2, characterized in that: in the wireless data transmission circuit (4), a small wireless carrier antenna is connected to the antenna interface P6.