CN218331912U

CN218331912U - Grounding state output circuit of grounding rod

Info

Publication number: CN218331912U
Application number: CN202222019189.1U
Authority: CN
Inventors: 朱黎明
Original assignee: Wuhan Jiayi Times Technology Co ltd
Current assignee: Wuhan Jiayi Times Technology Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2023-01-17
Anticipated expiration: 2032-08-02

Abstract

The utility model provides a grounding rod grounding state output circuit, which comprises a microcontroller firmware download interface, an external IO state input interface, an LORA wireless communication module, a power input interface, a microcontroller and a stabilized voltage power supply; downloading the firmware to the microcontroller through a microcontroller firmware downloading interface; the external IO state input interface detects the grounding state of the grounding rod, records a state event and outputs the state event to the microcontroller; the LORA wireless communication module receives the state event from the microcontroller and outputs the state event to an external receiving end for receiving; the power input interface is connected with a stabilized voltage power supply; the microcontroller receives a state event of an external IO state input interface and controls the working mode and communication of the LORA wireless communication module; the regulated power supply provides power.

Description

Grounding state output circuit of grounding rod

Technical Field

The utility model relates to an electric power apparatus field especially relates to an earthing rod ground connection state output circuit.

Background

When the power supply circuit is maintained and repaired, in order to ensure the reliability of grounding and the life safety of workers, reliable and effective grounding needs to be arranged, and a grounding rod is necessary equipment. When the existing grounding rod is used in maintenance work, the hanging result of the grounding rod is judged only by naked eyes or manpower, but the danger of the maintenance work is still high due to the problems of insufficient cognition, inadequate management, lack of responsibility and the like, and the currently used grounding rod has the following defects: the grounding rod is hung with the exposed wire, but the judgment of the grounding state is not obvious enough and needs to be judged by naked eyes.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an earthing rod ground connection state output circuit.

The technical scheme of the utility model is realized like this: the utility model provides a grounding rod ground connection state output circuit, includes microcontroller firmware download interface P1, outside IO state input interface P2, LORA wireless module P3, power input interface P4, microcontroller U1 and power U2, and microcontroller U1 receives external event, control LORA wireless module P3 mode of operation and communication.

On the basis of the above technical solution, preferably, pins 3 and 4 of the microcontroller firmware download interface P1 are electrically connected to the microcontroller U1, pin 1 is electrically connected to the 3.3V power supply, and pin 2 is grounded.

Preferably, pins 5, 6, 7, and 8 of the external IO status input interface P2 are grounded, pins 2, 3, and 4 are electrically connected to the microcontroller U1, pin 1 is electrically connected to one end of the resistor R3, the other end of the resistor R3 is electrically connected to one end of the capacitor C3 and one end of the resistor R4, the other end of the capacitor C3 is electrically connected to the other end of the resistor R4 and the ground, and one end of the resistor R4 is electrically connected to the microcontroller U1.

Preferably, the model of the LORA wireless module P3 is ATK-LORA-02,

pins

1, 3, 9, and 15 of the LORA wireless module are grounded, pin 2 is electrically connected to the 4G antenna socket J1,

pins

6, 10, 11, and 12 are electrically connected to the microcontroller U1, and pins 7 and 8 are electrically connected to the 4V power supply.

Preferably, pin 1 of the power input interface P3 is grounded, pin 2 is electrically connected to the 4V power supply and one end of the resistor R5, the other end of the resistor R5 is electrically connected to the microcontroller U1 and one end of the resistor R6, and the other end of the resistor R6 is grounded.

Preferably, pin 4 of microcontroller U1 is electrically connected to one end of resistor R1 and one end of capacitor C1, the other end of resistor R1 is electrically connected to the 3.3V power supply, the other end of capacitor C1 is electrically connected to microcontroller U1 and ground, pin 8 of microcontroller U1 is electrically connected to one end of capacitor C2 and the 3.3V power supply, the other end of capacitor C2 is grounded, pin 10 of microcontroller U1 is electrically connected to one end of light emitting diode D1, the other end of light emitting diode D1 is electrically connected to one end of resistor R2, and the other end of resistor R2 is electrically connected to the 3.3V power supply.

Preferably, pin 1 of the power supply U2 is grounded, pin 2 is electrically connected to a 3.3V power supply, and pin 3 is electrically connected to a 4V power supply.

Still further preferably, the controller U1 is an STM8L051F3P6 single chip microcomputer.

The utility model provides a pair of grounding rod ground state output circuit for prior art, has following beneficial effect:

(1) The grounding rod grounding state datamation records the grounding rod grounding state data through the LORA wireless module and the 4G antenna socket, and can be output to an external receiving end for further processing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a circuit wiring diagram of a grounding rod grounding state output circuit of the present invention;

fig. 2 is a front view of the grounding rod structure of the grounding rod grounding state output circuit of the present invention;

fig. 3 is a perspective view of the grounding rod structure of the grounding rod grounding state output circuit of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

If fig. 1 is the utility model relates to an earthing rod ground connection state output circuit's circuit wiring diagram, including microcontroller U1, constant voltage power supply U2, microcontroller firmware download interface P1, outside IO state input interface P2, LORA wireless communication module P3, six parts of power input interface P4.

Pin 1 of the microcontroller firmware download interface P1 is electrically connected with a 3.3V power supply, pin 2 is grounded, and pins 3 and 4 are electrically connected with the microcontroller U1; for accessing external inputs and downloading firmware to the microcontroller U1.

Pin 1 of the external IO state input interface P2 is electrically connected with one end of a resistor R3, pins 2, 3 and 4 are electrically connected with the microcontroller U1, and pins 5, 6, 7 and 8 are grounded; the grounding state of the grounding rod is detected and input to the microcontroller U1.

Pins

1, 3, 9 and 15 of the LORA wireless communication module P3 are grounded, pin 2 is electrically connected to the 4G antenna socket J1, pins 4 and 5 are general purpose input and output interfaces,

pins

6, 10, 11 and 12 are electrically connected to the microcontroller U1, and pins 7 and 8 are electrically connected to the 3.3V power supply; the LORA wireless communication module adopts an ATK-LORA-02 module, has the characteristics of micropower, low power consumption and high performance, and is used for outputting a grounding state to an external receiving end.

Pin 1 of the power input interface P4 is grounded, and pin 2 is electrically connected with one end of the resistor R5 and the 4V power supply; for inputting regulated power supply U2.

A pin 4 of the microcontroller U1 is electrically connected with one end of the resistor R1 and one end of the capacitor C1; the other end of the resistor R1 is electrically connected with a 3.3V power supply, and the other end of the capacitor C1 is electrically connected with a pin 7 and a ground wire of the microcontroller U1. Pin 8 of microcontroller U1 and the one end and the 3.3V power electrical connection of electric capacity C2, the other end ground connection of electric capacity C2. The pin 10 of the microcontroller U1 is electrically connected with one end of the light-emitting diode D1, the other end of the light-emitting diode D1 is electrically connected with the resistor R2, and the other end of the resistor R2 is electrically connected with the 3.3V power supply. Pin 14 of microcontroller U1 is electrically connected to resistors R3 and R4 and one end of capacitor C3, and the other end of resistor R4 is electrically connected to the other end of capacitor C3 and ground. Pin 17 of microcontroller U1 is electrically connected to the other ends of resistors R5 and R6, and one end of resistor R6 is grounded. Microcontroller U1 is STM8L051F3P6 singlechip, receives the external event of outside IO state input interface P2, controls LORA wireless communication module P3 mode and communication.

Pin 1 of the regulated power supply U2 is grounded, pin 2 inputs a 3.3V power supply, and pin 3 outputs a 4V power supply to a power supply input interface P4; the LDO low dropout regulator is used for providing a regulated power supply and adopts an LDO low dropout regulator.

Earthing rod ground connection state output circuit adopts STM8L051F3P6 as master control MCU, is in the ultralow power consumption state at ordinary times, and MCU's pin 14 is as the perception input port of earthing rod switch-on and disconnect switch, and when 14 level changes of pin, can awaken MCU, get into the interrupt service routine, with the state event through the serial ports with the help of LORA wireless communication module send data to outside receiving terminal receipt. The LORA wireless communication module adopts an integrated module, and multi-module data mutual transmission can be realized.

If fig. 2 is the utility model relates to a grounding rod ground connection state output circuit's grounding rod structure elevation, wherein A department is the U-shaped piece, adopts elastic material, consequently can the not unidimensional, the different shapes of adaptation bare electric wire, has strengthened the commonality.

Fig. 3 is a perspective view of the grounding rod structure of the grounding rod grounding state output circuit of the present invention, the circuit board of the grounding rod grounding state output circuit of the present invention is placed in the box at B, the pin 14 of the MCU is connected to the U-shaped piece of the grounding rod, the U-shaped piece is equivalent to the sensing probe, and is connected to the exposed wire to sense the level change, when the level becomes high, the grounding rod is not connected to the exposed wire, i.e. the exposed wire is not grounded, and the D1 yellow light is on; when the level becomes low, the grounding rod is well connected with the bare wire, namely, the bare wire is grounded, and the D1 yellow lamp is not lighted.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a grounding rod ground state output circuit which characterized in that: the system comprises a microcontroller firmware downloading interface P1, an external IO state input interface P2, an LORA wireless module P3, a power input interface P3, a microcontroller U1 and a power supply U2, wherein the microcontroller U1 receives an external event and controls the working mode and communication of the LORA wireless module P3.

2. The ground rod grounding state output circuit of claim 1, wherein: pins 3 and 4 of the microcontroller firmware download interface P1 are electrically connected with the microcontroller U1, pin 1 is electrically connected with the 3.3V power supply, and pin 2 is grounded.

3. The ground rod grounding state output circuit of claim 2, wherein: pins 5, 6, 7 and 8 of the external IO state input interface P2 are grounded, pins 2, 3 and 4 are electrically connected with the microcontroller U1, pin 1 is electrically connected with one end of the resistor R3, the other end of the resistor R3 is electrically connected with one end of the capacitor C3 and one end of the resistor R4, the other end of the capacitor C3 is electrically connected with the other end of the resistor R4 and the ground wire, and one end of the resistor R4 is electrically connected with the microcontroller U1.

4. A ground rod grounding state output circuit as claimed in claim 3, wherein: the LORA wireless module P3 is ATK-LORA-02 in model, pins 1, 3, 9 and 15 of the LORA wireless module are grounded, pin 2 is electrically connected with the 4G antenna socket J1, pins 6, 10, 11 and 12 are electrically connected with the microcontroller U1, and pins 7 and 8 are electrically connected with the 4V power supply.

5. The ground rod grounding state output circuit of claim 4, wherein: pin 1 of power input interface P4 is grounded, pin 2 and 4V power and the one end electric connection of resistance R5, the other end of resistance R5 and microcontroller U1 and the one end electric connection of resistance R6, the other end ground connection of resistance R6.

6. The ground rod grounding state output circuit of claim 5, wherein: pin 4 of microcontroller U1 and resistance R1's one end and capacitance C1's one end electric connection, resistance R1's the other end and 3.3V power electric connection, capacitance C1's the other end and microcontroller U1 and ground wire electric connection, microcontroller U1's pin 8 and capacitance C2's one end and 3.3V power electric connection, capacitance C2's the other end ground connection, microcontroller U1's pin 10 and emitting diode D1's one end electric connection, emitting diode D1's the other end and resistance R2's one end electric connection, resistance R2's the other end and 3.3V power electric connection.

7. The ground rod grounding state output circuit of claim 6, wherein: pin 1 of power U2 is ground connection, pin 2 and 3.3V power electrical connection, pin 3 and 4V power electrical connection.

8. The ground rod grounding state output circuit of claim 7, wherein: and the controller U1 is an STM8L051F3P6 singlechip.