CN212989611U

CN212989611U - Intelligent direct-current insulation monitoring device inspection equipment

Info

Publication number: CN212989611U
Application number: CN202022099351.6U
Authority: CN
Inventors: 张铭凯; 张志林
Original assignee: Hebei Nengheng Electric Technology Co ltd
Current assignee: Jiusheng Zhonghong Hebei Electronic Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-04-16
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses an intelligent direct current insulation monitoring device check out test set, including controller and detector, the controller passes through the screw fixation on the detector, the controller includes cuboid controller shell, installs the display screen on the controller shell, and there is the audio amplifier hole on the right side of display screen, includes main control chip, power module, communication module, display screen module and alarm module in the controller, the detector includes the base, installs the detector box on the base, and detector box one side is installed the inductor, and the detector embeds there is leakage current detection module, leakage current detection module passes through RS232 interface module and is connected with the controller; the utility model discloses in, the detector is arranged in and is waited the check out test set next door, gathers the signal of telecommunication through the detector to the signal that will gather passes to the controller, and display screen shows trouble information in the controller, and alarm module reports to the police, and gives total control unit with data transmission through WIFI communication module, improves work efficiency.

Description

Intelligent direct-current insulation monitoring device inspection equipment

Technical Field

The utility model relates to a check out test set design field specifically is an intelligence direct current insulation monitoring devices check out test set.

Background

According to incomplete statistics, electric shock and fire accidents caused by electric leakage in China each year cause thousands of people to die and billions of economic losses, and how to guarantee the electricity utilization safety is a problem which is continuously explored in order to avoid or reduce the losses. If an electric leakage accident occurs, the electric leakage accident needs to be detected and alarmed at the first time, so that higher requirements are put on inspection equipment for detecting the electric leakage condition and protecting personal safety.

Therefore, the inventor provides the intelligent direct-current insulation monitoring device inspection equipment by integrating various factors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intelligence direct current insulation monitoring devices check out test set to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an intelligent direct-current insulation monitoring device inspection device comprises a controller and a detector, wherein the controller is fixed on the detector through screws and comprises a cuboid controller shell, a display screen is mounted on the controller shell, a sound box hole is formed in the right side of the display screen, a main control chip, a power supply module, a communication module, a display screen module and an alarm module are arranged in the controller, the main control chip is respectively connected with the display screen module, the alarm module and the communication module, and the communication module comprises an RS232 interface module and a WIFI communication module; the detector comprises a base, a detector box body is arranged on the base, an inductor is arranged on one side of the detector box body, a leakage current detection module is arranged in the detector, and the leakage current detection module is connected with the controller through an RS232 interface module; the utility model discloses in, during the use, arrange the detector in wait to detect equipment other, make the inductor aim at and wait to detect equipment, detect through the detector whether the equipment that awaits measuring leaks electricity, if wait to detect equipment electric leakage, can produce the signal of telecommunication in the inductance, input control chip after filtering amplification, control chip receives behind the signal, through 232 bus communication, give main control chip with data transmission, main control chip control alarm module reports to the police, and give total control unit with data transmission through WIFI communication module, make the plant maintenance personnel can in time discover the trouble and get rid of the trouble.

As a further aspect of the present invention: the power supply module comprises a power supply P1, the power supply P1 supplies power to the system through a voltage stabilizing circuit, the voltage stabilizing circuit comprises capacitors C10 to C13 which are sequentially numbered and a voltage stabilizing chip VR1, one end of the capacitor C10 is connected with one end of a capacitor C11 and a Vin pin of the voltage stabilizing chip VR1, and the pin 2 of the power supply P1 is connected in parallel; one end of the capacitor C12 is connected with one end of the capacitor C13 and is connected with the Vout pin of the voltage stabilizing chip VR1 in parallel; the other end of the capacitor C10 is connected with the other end of the capacitor C11, the other end of the capacitor C12, the other end of the capacitor C13 and the pin 1 of the power supply P1, and is grounded, wherein the model of the voltage stabilization chip VR1 is LM 1117-3.3.

As a further aspect of the present invention: the RS232 interface module comprises a connector J1, the connector J1 is connected with a main control chip U1 through an RS232 interface circuit, the RS232 interface circuit comprises capacitors C1 to C5 and a chip U2 which are numbered sequentially, and one end of the capacitor C1 is connected with a C1+ pin of the chip U2; the other end of the capacitor C1 is connected with a C1-pin of the chip U2; one end of the capacitor C2 is connected with the C2+ pin of the chip U2; the other end of the capacitor C2 is connected with a C2-pin of the chip U2; one end of the capacitor C3 is connected with the GND pin of the chip U2; the other end of the capacitor C3 is connected with the VEE pin of the chip U2 and is grounded; one end of the capacitor C4 is connected with one end of the capacitor C5 and a VCC pin of the chip U2 and is connected with a power supply in parallel; the other end of the capacitor C4 is connected with the VDD pin of the chip U2; the other end of the capacitor C5 is grounded; the T2OUT pin of the chip U2 is connected with the 2 pin of the J1; the pin R2IN of the chip U2 is connected with the pin 3 of the J1; the T2IN pin of the chip U2 is connected with the PB10 pin of the main control chip U1; the R2OUT pin of the chip U2 is connected with the PB11 pin of the main control chip U1, wherein the model of the main control chip U1 is STM32F103ZET6, and the model of the chip U2 is MAX 232.

As a further aspect of the present invention: the WIFI communication module comprises a WIFI chip U4, and a TXD pin of the WIFI chip U4 is connected with a PA10 pin of a master control chip U1; the RXD pin of the WIFI chip U4 is connected with the PA9 pin of the main control chip U1; the GND pin of the WIFI chip U4 is grounded; the VCC pin of the WIFI chip U4 is connected with a power supply, wherein the type of the WIFI chip U4 is SKW 93A.

As a further aspect of the present invention: the display screen module comprises a display screen U5, and a D0 pin of the display screen U5 is connected with a PB0 pin of a main control chip U1; the D1 pin of the display screen U5 is connected with the PB1 pin of the main control chip U1; the D2 pin of the display screen U5 is connected with the PB2 pin of the main control chip U1; the D3 pin of the display screen U5 is connected with the PB3 pin of the main control chip U1; the D4 pin of the display screen U5 is connected with the PB4 pin of the main control chip U1; the D5 pin of the display screen U5 is connected with the PB5 pin of the main control chip U1; the D6 pin of the display screen U5 is connected with the PB6 pin of the main control chip U1; the D7 pin of the display screen U5 is connected with the PB7 pin of the main control chip U1; the D8 pin of the display screen U5 is connected with the PB8 pin of the main control chip U1; the D9 pin of the display screen U5 is connected with the PB9 pin of the main control chip U1; the D10 pin of the display screen U5 is connected with the PB10 pin of the main control chip U1; the D11 pin of the display screen U5 is connected with the PB11 pin of the main control chip U1; the D12 pin of the display screen U5 is connected with the PB12 pin of the main control chip U1; the D13 pin of the display screen U5 is connected with the PB13 pin of the main control chip U1; the D14 pin of the display screen U5 is connected with the PB14 pin of the main control chip U1; the D15 pin of the display screen U5 is connected with the PB15 pin of the main control chip U1; the RD pin of the display screen U5 is connected with the PE6 pin of the main control chip U1; the WR pin of the display screen U5 is connected with the PE7 pin of the main control chip U1; the RS pin of the display screen U5 is connected with the PE8 pin of the main control chip U1; the CS pin of the display screen U5 is connected with the PE9 pin of the main control chip U1; the LED pin of the display screen U5 is connected with the PE10 pin of the main control chip U1, and the display screen U5 is a TFT display screen.

As a further aspect of the present invention: the alarm module comprises a voice chip U3, the voice chip U3 is connected with a main control chip U1 through a voice alarm circuit, the voice alarm circuit comprises a resistor R1 to a resistor R3 which are numbered sequentially, a capacitor C6 to a capacitor C9 which are numbered sequentially, a switch S1 and a loudspeaker LS1, and one end of a capacitor C6 is connected with a PA4 pin of the main control chip U1; the other end of the capacitor C6 is connected with one end of a resistor R1; the other end of the resistor R1 is connected with an IN + pin of the voice chip U3; one end of the capacitor C7 is connected with the PA5 pin of the main control chip U1; the other end of the capacitor C7 is connected with one end of a resistor R2; the other end of the resistor R2 is connected with an IN-pin of the voice chip U3; one end of the resistor R3 is connected with the BYPASS pin of the voice chip U3 and one end of the switch S1; the other end of the resistor R3 is grounded; the other end of the switch S1 is connected with a power supply; one end of the capacitor C8 is connected with the CTRL pin of the voice chip U3; the other end of the capacitor C8 is grounded; one end of the capacitor C9 is connected with a VCC pin of the voice chip U3 and is connected with a power supply in parallel; the other end of the capacitor C9 is connected with a power supply; one end of the loudspeaker LS1 is connected with the OUT + pin of the voice chip U3; the other end of the loudspeaker LS1 is connected with an OUT-pin of the voice chip U3; the GND pin of the voice chip U3 is grounded, wherein the model of the voice chip U3 is HT 6872.

As a further aspect of the present invention: the leakage current detection module comprises a detection module, an RS232 communication module and a control chip, and the control chip is respectively connected with the detection module and the RS232 communication module.

As a further aspect of the present invention: the detection module is connected with a control chip U6 through a detection circuit, the detection circuit comprises a resistor R4-resistor R7, an inductor L1, a capacitor C14, a diode D1, a diode D2 and an operational amplifier P2 which are sequentially numbered, one end of the inductor L1 is connected with one end of a resistor R4, the negative electrode of the diode D1, the positive electrode of the diode D2 and one end of the capacitor C14; the other end of the inductor L1 is connected with the other end of the resistor R4, the anode of the diode D1 and the cathode of the diode D2; the other end of the capacitor C14 is connected with one end of a resistor R5; the other end of the resistor R5 is connected with one end of the resistor R7 and the reverse end of the operational amplifier P2; the other end of the resistor R7 is connected with the output end of the operational amplifier P2; one end of the resistor R6 is connected with the equidirectional end of the operational amplifier P2; the other end of the resistor R6 is grounded; the V + end of the operational amplifier P2 is connected with a +12V power supply; the V-end of the operational amplifier P2 is connected with a-12V power supply; the output end of the operational amplifier P2 is connected with a P0.6 pin of a control chip U6, wherein the model of the operational amplifier P2 is LM358, and the model of the control chip U6 is AT89C 51.

As a further aspect of the present invention: the RS232 communication module comprises a connector J2, the connector J2 is connected with a control chip U6 through an RS232 communication circuit, the RS232 communication circuit comprises sequentially numbered capacitors C15-C19 and a chip U7, and one end of the capacitor C15 is connected with a C1+ pin of the chip U7; the other end of the capacitor C15 is connected with a C1-pin of the chip U7; one end of the capacitor C16 is connected with the C2+ pin of the chip U7; the other end of the capacitor C2 is connected with a C2-pin of the chip U7; one end of the capacitor C17 is connected with the GND pin of the chip U7; the other end of the capacitor C17 is connected with the VEE pin of the chip U7 and is grounded; one end of the capacitor C18 is connected with one end of the capacitor C19 and a VCC pin of the chip U7 and is connected with a power supply in parallel; the other end of the capacitor C18 is connected with the VDD pin of the chip U7; the other end of the capacitor C19 is grounded; the T2OUT pin of the chip U7 is connected with the 2 pin of the J2; the pin R2IN of the chip U7 is connected with the pin 3 of the J2; the T2IN pin of the chip U7 is connected with the P3.0/RXD pin of the U6; the R2OUT pin of the chip U7 is connected with the P3.1/TXD pin of the U6, wherein the model number of the chip U7 is MAX 232.

Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:

1. the utility model provides an intelligent direct current insulation monitoring devices check out test set, the structure sets up ingeniously and arranges rationally, in the utility model, during the use, arrange the detector beside the equipment to be detected, make the inductor aim at the equipment to be detected, detect through the detector whether the equipment to be detected leaks electricity, if the equipment to be detected leaks electricity, can produce the signal of telecommunication in the inductance, input control chip after filtering and amplifying, after control chip received the signal, through 232 bus communication, send data to main control chip, main control chip control alarm module reports to the police, and send data to total control unit through WIFI communication module, make the equipment maintainer can find the trouble and get rid of the trouble in time;

2. the utility model discloses further designed communication module, the RS232 bus of RS232 interface connection among the communication module for bus communication, WIFI communication module is then used for sending data to total control unit, makes the maintainer can receive trouble information at the very first time;

3. the utility model further designs an alarm module, which can send out a fault prompt in time through voice alarm, so that maintenance personnel can find out the fault and maintain the fault as soon as possible;

4. the utility model discloses further display screen module, display screen module are used for display system trouble reason and trouble area, more convenient accurate for maintainer provides trouble equipment serial number and trouble reason, improve maintenance efficiency.

Drawings

Fig. 1 is a structural diagram of an intelligent dc insulation monitoring device inspection apparatus.

Fig. 2 is a block diagram of an intelligent dc insulation monitoring device inspection apparatus.

Fig. 3 is a circuit diagram of an intelligent dc insulation monitoring device inspection apparatus.

Fig. 4 is a circuit diagram of a power module in an intelligent dc insulation monitoring device inspection apparatus.

Fig. 5 is a circuit diagram of a leakage current detection module in an inspection apparatus of an intelligent dc insulation monitoring device.

In the figure: 100. a controller; 200. a main control chip; 300. a power supply module; 400. a display screen module; 401. a display screen; 500. an alarm module; 501. a speaker hole; 600. a leakage current detection module; 700. an RS232 interface module; 800. a WIFI communication module; 900. a detector; 901. a detector box body; 902. an inductor.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-5, an intelligent dc insulation monitoring device inspection apparatus includes a controller 100 and a detector 900, the controller 100 is fixed on the detector 900 by screws, the controller 100 includes a rectangular controller housing, a display screen 401 is mounted on the controller housing, a speaker hole 501 is formed in the right side of the display screen 401, a main control chip 200, a communication module, a display screen module 400 and an alarm module 500 are included in the controller 100, the main control chip 200 is respectively connected to the display screen module 400, the alarm module 500 and the communication module, and the communication module includes an RS232 interface module 700 and a WIFI communication module 800; the detector 900 comprises a base, a detector box 901 is installed on the base, an inductor 902 is installed on one side of the detector box 901, a leakage current detection module 600 is arranged in the detector 900, and the leakage current detection module 600 is connected with the controller 100 through an RS232 interface module 700; the utility model discloses in, during the use, arrange detector 900 in wait to detect equipment other, make inductor 902 aim at and wait to detect equipment, detect through detector 900 whether electric leakage of equipment that awaits measuring, if wait to detect equipment electric leakage, can produce the signal of telecommunication in the inductance, input control chip after filtering and amplifying, control chip receives the signal after, through 232 bus communication, give main control chip 200 with data transmission, main control chip 200 controls alarm module 500 and reports to the police, and give total control unit with data transmission through WIFI communication module 800.

The power supply module 300 comprises a power supply P1, the power supply P1 supplies power to the system through a voltage stabilizing circuit, the voltage stabilizing circuit comprises capacitors C10 to C13 which are numbered sequentially and a voltage stabilizing chip VR1, one end of the capacitor C10 is connected with one end of a capacitor C11 and a Vin pin of the voltage stabilizing chip VR1, and the pin 2 of the power supply P1 is connected in parallel; one end of the capacitor C12 is connected with one end of the capacitor C13 and is connected with the Vout pin of the voltage stabilizing chip VR1 in parallel; the other end of the capacitor C10 is connected with the other end of the capacitor C11, the other end of the capacitor C12, the other end of the capacitor C13 and a pin 1 of a power supply P1, and the other end of the capacitor C13 is grounded, wherein the voltage stabilizing chip VR1 is LM1117-3.3 in model number;

the RS232 interface module 700 includes a connector J1, the connector J1 is connected to a main control chip U1 through an RS232 interface circuit, the RS232 interface circuit includes capacitors C1 to C5 and a chip U2 which are numbered sequentially, and one end of the capacitor C1 is connected to a C1+ pin of the chip U2; the other end of the capacitor C1 is connected with a C1-pin of the chip U2; one end of the capacitor C2 is connected with the C2+ pin of the chip U2; the other end of the capacitor C2 is connected with a C2-pin of the chip U2; one end of the capacitor C3 is connected with the GND pin of the chip U2; the other end of the capacitor C3 is connected with the VEE pin of the chip U2 and is grounded; one end of the capacitor C4 is connected with one end of the capacitor C5 and a VCC pin of the chip U2 and is connected with a power supply in parallel; the other end of the capacitor C4 is connected with the VDD pin of the chip U2; the other end of the capacitor C5 is grounded; the T2OUT pin of the chip U2 is connected with the 2 pin of the J1; the pin R2IN of the chip U2 is connected with the pin 3 of the J1; the T2IN pin of the chip U2 is connected with the PB10 pin of the main control chip U1; the R2OUT pin of the chip U2 is connected with the PB11 pin of the main control chip U1, wherein the model of the main control chip U1 is STM32F103ZET6, and the model of the chip U2 is MAX 232; the WIFI communication module 800 comprises a WIFI chip U4, and a TXD pin of the WIFI chip U4 is connected with a PA10 pin of a master control chip U1; the RXD pin of the WIFI chip U4 is connected with the PA9 pin of the main control chip U1; the GND pin of the WIFI chip U4 is grounded; a VCC pin of the WIFI chip U4 is connected with a power supply, wherein the type of the WIFI chip U4 is SKW 93A;

the display screen module 400 comprises a display screen U5, and a D0 pin of the display screen U5 is connected with a PB0 pin of a main control chip U1; the D1 pin of the display screen U5 is connected with the PB1 pin of the main control chip U1; the D2 pin of the display screen U5 is connected with the PB2 pin of the main control chip U1; the D3 pin of the display screen U5 is connected with the PB3 pin of the main control chip U1; the D4 pin of the display screen U5 is connected with the PB4 pin of the main control chip U1; the D5 pin of the display screen U5 is connected with the PB5 pin of the main control chip U1; the D6 pin of the display screen U5 is connected with the PB6 pin of the main control chip U1; the D7 pin of the display screen U5 is connected with the PB7 pin of the main control chip U1; the D8 pin of the display screen U5 is connected with the PB8 pin of the main control chip U1; the D9 pin of the display screen U5 is connected with the PB9 pin of the main control chip U1; the D10 pin of the display screen U5 is connected with the PB10 pin of the main control chip U1; the D11 pin of the display screen U5 is connected with the PB11 pin of the main control chip U1; the D12 pin of the display screen U5 is connected with the PB12 pin of the main control chip U1; the D13 pin of the display screen U5 is connected with the PB13 pin of the main control chip U1; the D14 pin of the display screen U5 is connected with the PB14 pin of the main control chip U1; the D15 pin of the display screen U5 is connected with the PB15 pin of the main control chip U1; the RD pin of the display screen U5 is connected with the PE6 pin of the main control chip U1; the WR pin of the display screen U5 is connected with the PE7 pin of the main control chip U1; the RS pin of the display screen U5 is connected with the PE8 pin of the main control chip U1; the CS pin of the display screen U5 is connected with the PE9 pin of the main control chip U1; an LED pin of the display screen U5 is connected with a PE10 pin of the main control chip U1, and the display screen U5 is a TFT display screen;

the alarm module 500 comprises a voice chip U3, the voice chip U3 is connected with a main control chip U1 through a voice alarm circuit, the voice alarm circuit comprises a resistor R1 to a resistor R3 which are numbered sequentially, a capacitor C6 to a capacitor C9 which are numbered sequentially, a switch S1 and a loudspeaker LS1, and one end of the capacitor C6 is connected with a PA4 pin of the main control chip U1; the other end of the capacitor C6 is connected with one end of a resistor R1; the other end of the resistor R1 is connected with an IN + pin of the voice chip U3; one end of the capacitor C7 is connected with the PA5 pin of the main control chip U1; the other end of the capacitor C7 is connected with one end of a resistor R2; the other end of the resistor R2 is connected with an IN-pin of the voice chip U3; one end of the resistor R3 is connected with the BYPASS pin of the voice chip U3 and one end of the switch S1; the other end of the resistor R3 is grounded; the other end of the switch S1 is connected with a power supply; one end of the capacitor C8 is connected with the CTRL pin of the voice chip U3; the other end of the capacitor C8 is grounded; one end of the capacitor C9 is connected with a VCC pin of the voice chip U3 and is connected with a power supply in parallel; the other end of the capacitor C9 is connected with a power supply; one end of the loudspeaker LS1 is connected with the OUT + pin of the voice chip U3; the other end of the loudspeaker LS1 is connected with an OUT-pin of the voice chip U3; the GND pin of the voice chip U3 is grounded, wherein the type of the voice chip U3 is HT 6872;

the leakage current detection module 600 comprises a detection module, an RS232 communication module and a control chip, wherein the control chip is respectively connected with the detection module and the RS232 communication module; the detection module is connected with a control chip U6 through a detection circuit, the detection circuit comprises a resistor R4-resistor R7, an inductor L1, a capacitor C14, a diode D1, a diode D2 and an operational amplifier P2 which are sequentially numbered, one end of the inductor L1 is connected with one end of a resistor R4, the negative electrode of the diode D1, the positive electrode of the diode D2 and one end of the capacitor C14; the other end of the inductor L1 is connected with the other end of the resistor R4, the anode of the diode D1 and the cathode of the diode D2; the other end of the capacitor C14 is connected with one end of a resistor R5; the other end of the resistor R5 is connected with one end of the resistor R7 and the reverse end of the operational amplifier P2; the other end of the resistor R7 is connected with the output end of the operational amplifier P2; one end of the resistor R6 is connected with the equidirectional end of the operational amplifier P2; the other end of the resistor R6 is grounded; the V + end of the operational amplifier P2 is connected with a +12V power supply; the V-end of the operational amplifier P2 is connected with a-12V power supply; the output end of the operational amplifier P2 is connected with a P0.6 pin of the control chip U6; the RS232 communication module comprises a connector J2, the connector J2 is connected with a control chip U6 through an RS232 communication circuit, the RS232 communication circuit comprises sequentially numbered capacitors C15-C19 and a chip U7, and one end of the capacitor C15 is connected with a C1+ pin of the chip U7; the other end of the capacitor C15 is connected with a C1-pin of the chip U7; one end of the capacitor C16 is connected with the C2+ pin of the chip U7; the other end of the capacitor C2 is connected with a C2-pin of the chip U7; one end of the capacitor C17 is connected with the GND pin of the chip U7; the other end of the capacitor C17 is connected with the VEE pin of the chip U7 and is grounded; one end of the capacitor C18 is connected with one end of the capacitor C19 and a VCC pin of the chip U7 and is connected with a power supply in parallel; the other end of the capacitor C18 is connected with the VDD pin of the chip U7; the other end of the capacitor C19 is grounded; the T2OUT pin of the chip U7 is connected with the 2 pin of the J2; the pin R2IN of the chip U7 is connected with the pin 3 of the J2; the T2IN pin of the chip U7 is connected with the P3.0/RXD pin of the U6; the R2OUT pin of the chip U7 is connected with the P3.1/TXD pin of the U6, wherein the model of the operational amplifier P2 is LM358, the model of the control chip U6 is AT89C51, and the model of the chip U7 is MAX 232.

The utility model discloses a theory of operation is: the utility model discloses in, whether through leakage current detection module 600 detection load electric leakage, when the load electric leakage, can produce the electric signal in the inductance, input control chip after filtering and amplifying, after control chip received the signal, through 232 bus communication, give main control chip 200 with data transmission, main control chip 200 controls alarm module 500 and reports to the police, and give main control unit with data transmission through WIFI communication module 800, make the equipment maintenance personnel can in time discover the trouble and get rid of the trouble; an RS232 interface in the communication module is connected with an RS232 bus and used for bus communication; through voice alarm, a fault prompt is sent out in time, so that maintenance personnel can find and maintain the fault as soon as possible; the display screen module 400 is used for displaying the system fault reason and the fault area, so that the fault equipment number and the fault reason can be provided for maintenance personnel more conveniently and accurately, and the maintenance efficiency is improved.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The intelligent direct-current insulation monitoring device inspection equipment comprises a controller (100) and a detector (900), and is characterized in that the controller (100) is fixed on the detector (900) through screws, the controller (100) comprises a cuboid controller shell, a display screen (401) is installed on the controller shell, a sound box hole (501) is formed in the right side of the display screen (401), a main control chip (200), a power supply module (300), a communication module, a display screen module (400) and an alarm module (500) are arranged in the controller (100), the main control chip (200) is respectively connected with the display screen module (400), the alarm module (500) and the communication module, and the communication module comprises an RS232 interface module (700) and a WIFI communication module (800); the detector (900) comprises a base, a detector box body (901) is installed on the base, an inductor (902) is installed on one side of the detector box body (901), a leakage current detection module (600) is arranged in the detector (900), and the leakage current detection module (600) is connected with the controller (100) through an RS232 interface module (700).

2. The intelligent direct-current insulation monitoring device inspection equipment according to claim 1, wherein the power supply module (300) comprises a power supply P1, the power supply P1 supplies power to a system through a voltage stabilizing circuit, the voltage stabilizing circuit comprises a capacitor C10 to a capacitor C13 and a voltage stabilizing chip VR1 which are sequentially numbered, one end of the capacitor C10 is connected with one end of a capacitor C11, a Vin pin of the voltage stabilizing chip VR1 is connected with a 2 pin of the power supply P1 in parallel; one end of the capacitor C12 is connected with one end of the capacitor C13 and is connected with the Vout pin of the voltage stabilizing chip VR1 in parallel; the other end of the capacitor C10 is connected with the other end of the capacitor C11, the other end of the capacitor C12, the other end of the capacitor C13 and the pin 1 of the power supply P1, and is grounded, wherein the model of the voltage stabilization chip VR1 is LM 1117-3.3.

3. The intelligent direct-current insulation monitoring device inspection equipment as claimed in claim 1, wherein the RS232 interface module (700) comprises a connector J1, the connector J1 is connected with a main control chip U1 through an RS232 interface circuit, the RS232 interface circuit comprises sequentially numbered capacitors C1 to C5 and a chip U2, and one end of the capacitor C1 is connected with a C1+ pin of a chip U2; the other end of the capacitor C1 is connected with a C1-pin of the chip U2; one end of the capacitor C2 is connected with the C2+ pin of the chip U2; the other end of the capacitor C2 is connected with a C2-pin of the chip U2; one end of the capacitor C3 is connected with the GND pin of the chip U2; the other end of the capacitor C3 is connected with the VEE pin of the chip U2 and is grounded; one end of the capacitor C4 is connected with one end of the capacitor C5 and a VCC pin of the chip U2 and is connected with a power supply in parallel; the other end of the capacitor C4 is connected with the VDD pin of the chip U2; the other end of the capacitor C5 is grounded; the T2OUT pin of the chip U2 is connected with the 2 pin of the J1; the pin R2IN of the chip U2 is connected with the pin 3 of the J1; the T2IN pin of the chip U2 is connected with the PB10 pin of the main control chip U1; the R2OUT pin of the chip U2 is connected with the PB11 pin of the main control chip U1, wherein the model of the main control chip U1 is STM32F103ZET6, and the model of the chip U2 is MAX 232.

4. The intelligent direct current insulation monitoring device inspection apparatus according to claim 1, wherein the WIFI communication module (800) comprises a WIFI chip U4, and a TXD pin of the WIFI chip U4 is connected with a PA10 pin of a master control chip U1; the RXD pin of the WIFI chip U4 is connected with the PA9 pin of the main control chip U1; the GND pin of the WIFI chip U4 is grounded; the VCC pin of the WIFI chip U4 is connected with a power supply, wherein the type of the WIFI chip U4 is SKW 93A.

5. The intelligent direct-current insulation monitoring device inspection equipment according to claim 1, wherein the display screen module (400) comprises a display screen U5, and a D0 pin of the display screen U5 is connected with a PB0 pin of a main control chip U1; the D1 pin of the display screen U5 is connected with the PB1 pin of the main control chip U1; the D2 pin of the display screen U5 is connected with the PB2 pin of the main control chip U1; the D3 pin of the display screen U5 is connected with the PB3 pin of the main control chip U1; the D4 pin of the display screen U5 is connected with the PB4 pin of the main control chip U1; the D5 pin of the display screen U5 is connected with the PB5 pin of the main control chip U1; the D6 pin of the display screen U5 is connected with the PB6 pin of the main control chip U1; the D7 pin of the display screen U5 is connected with the PB7 pin of the main control chip U1; the D8 pin of the display screen U5 is connected with the PB8 pin of the main control chip U1; the D9 pin of the display screen U5 is connected with the PB9 pin of the main control chip U1; the D10 pin of the display screen U5 is connected with the PB10 pin of the main control chip U1; the D11 pin of the display screen U5 is connected with the PB11 pin of the main control chip U1; the D12 pin of the display screen U5 is connected with the PB12 pin of the main control chip U1; the D13 pin of the display screen U5 is connected with the PB13 pin of the main control chip U1; the D14 pin of the display screen U5 is connected with the PB14 pin of the main control chip U1; the D15 pin of the display screen U5 is connected with the PB15 pin of the main control chip U1; the RD pin of the display screen U5 is connected with the PE6 pin of the main control chip U1; the WR pin of the display screen U5 is connected with the PE7 pin of the main control chip U1; the RS pin of the display screen U5 is connected with the PE8 pin of the main control chip U1; the CS pin of the display screen U5 is connected with the PE9 pin of the main control chip U1; the LED pin of the display screen U5 is connected with the PE10 pin of the main control chip U1, and the display screen U5 is a TFT display screen.

6. The intelligent direct-current insulation monitoring device inspection equipment as claimed in claim 1, wherein the alarm module (500) comprises a voice chip U3, the voice chip U3 is connected with a main control chip U1 through a voice alarm circuit, the voice alarm circuit comprises a resistor R1 to a resistor R3 which are sequentially numbered, a capacitor C6 to a capacitor C9 which are sequentially numbered, a switch S1 and a loudspeaker LS1, and one end of the capacitor C6 is connected with a PA4 pin of the main control chip U1; the other end of the capacitor C6 is connected with one end of a resistor R1; the other end of the resistor R1 is connected with an IN + pin of the voice chip U3; one end of the capacitor C7 is connected with the PA5 pin of the main control chip U1; the other end of the capacitor C7 is connected with one end of a resistor R2; the other end of the resistor R2 is connected with an IN-pin of the voice chip U3; one end of the resistor R3 is connected with the BYPASS pin of the voice chip U3 and one end of the switch S1; the other end of the resistor R3 is grounded; the other end of the switch S1 is connected with a power supply; one end of the capacitor C8 is connected with the CTRL pin of the voice chip U3; the other end of the capacitor C8 is grounded; one end of the capacitor C9 is connected with a VCC pin of the voice chip U3 and is connected with a power supply in parallel; the other end of the capacitor C9 is connected with a power supply; one end of the loudspeaker LS1 is connected with the OUT + pin of the voice chip U3; the other end of the loudspeaker LS1 is connected with an OUT-pin of the voice chip U3; the GND pin of the voice chip U3 is grounded, wherein the model of the voice chip U3 is HT 6872.

7. The intelligent direct-current insulation monitoring device inspection equipment according to claim 1, wherein the leakage current detection module (600) comprises a detection module, an RS232 communication module and a control chip, and the control chip is respectively connected with the detection module and the RS232 communication module.

8. The intelligent direct-current insulation monitoring device inspection equipment as claimed in claim 7, wherein the detection module is connected with a control chip U6 through a detection circuit, the detection circuit comprises a resistor R4-resistor R7, an inductor L1, a capacitor C14, a diode D1, a diode D2 and an operational amplifier P2 which are sequentially numbered, one end of the inductor L1 is connected with one end of a resistor R4, the cathode of the diode D1, the anode of the diode D2 and one end of a capacitor C14; the other end of the inductor L1 is connected with the other end of the resistor R4, the anode of the diode D1 and the cathode of the diode D2; the other end of the capacitor C14 is connected with one end of a resistor R5; the other end of the resistor R5 is connected with one end of the resistor R7 and the reverse end of the operational amplifier P2; the other end of the resistor R7 is connected with the output end of the operational amplifier P2; one end of the resistor R6 is connected with the equidirectional end of the operational amplifier P2; the other end of the resistor R6 is grounded; the V + end of the operational amplifier P2 is connected with a +12V power supply; the V-end of the operational amplifier P2 is connected with a-12V power supply; the output end of the operational amplifier P2 is connected with a P0.6 pin of a control chip U6, wherein the model of the operational amplifier P2 is LM358, and the model of the control chip U6 is AT89C 51.

9. The intelligent direct-current insulation monitoring device inspection equipment as claimed in claim 7, wherein the RS232 communication module comprises a connector J2, the connector J2 is connected with a control chip U6 through an RS232 communication circuit, the RS232 communication circuit comprises sequentially numbered capacitors C15 to C19 and a chip U7, and one end of the capacitor C15 is connected with a C1+ pin of a chip U7; the other end of the capacitor C15 is connected with a C1-pin of the chip U7; one end of the capacitor C16 is connected with the C2+ pin of the chip U7; the other end of the capacitor C2 is connected with a C2-pin of the chip U7; one end of the capacitor C17 is connected with the GND pin of the chip U7; the other end of the capacitor C17 is connected with the VEE pin of the chip U7 and is grounded; one end of the capacitor C18 is connected with one end of the capacitor C19 and a VCC pin of the chip U7 and is connected with a power supply in parallel; the other end of the capacitor C18 is connected with the VDD pin of the chip U7; the other end of the capacitor C19 is grounded; the T2OUT pin of the chip U7 is connected with the 2 pin of the J2; the pin R2IN of the chip U7 is connected with the pin 3 of the J2; the T2IN pin of the chip U7 is connected with the P3.0/RXD pin of the U6; the R2OUT pin of the chip U7 is connected with the P3.1/TXD pin of the U6, wherein the model number of the chip U7 is MAX 232.