High-voltage switchgear remote control circuit based on 4G communication technology

Abstract

The utility model provides a high-voltage switchgear remote control circuit based on 4G communication technology. The high-voltage switchgear remote control circuit comprises an address setting module, a power supply module, a magnetic latching relay drive circuit, a magnetic latching relay, a 4G wireless module, a microprocessor module and a communication module. The remote locking and unlocking device is implanted into the switch equipment body, and the magnetic latching relay is used for controlling the on-off of the opening and closing coil, so that the remote locking and unlocking of the operating mechanism are realized, and the equipment is ensured not to be operated at will before the payment of goods is settled.

Description

Technical Field

[0001] The utility model discloses a high-voltage switchgear remote control circuit based on 4G communication technology, belonging to the technical field of power control. Background Art

[0002] In power systems, high-voltage switchgear is a critical component of ensuring the safe and stable operation of the power grid. However, in practice, due to the instability of business finances, payment delays are common, posing significant financial risks to equipment suppliers. To effectively manage these devices and ensure they are not arbitrarily operated before payment is cleared, a technical solution for remotely monitoring and controlling high-voltage switchgear is urgently needed.

[0003] In the existing technology, although some remote monitoring technologies have been applied to power equipment, the remote control and locking functions of high-voltage switchgear are still not perfect. In particular, the demand for remote control without changing the original operating mechanism of the circuit breaker has not been fully met. Utility Model Content

[0004] In response to the above problems, the utility model proposes a remote control circuit for high-voltage switchgear based on 4G communication technology. The circuit is implanted in the switchgear body and uses a magnetic latching relay to control the on and off of the opening and closing coils, thereby realizing remote locking and unlocking of the operating mechanism, ensuring that the equipment cannot be operated at will before the payment is settled.

[0005] The technical solution of the utility model is as follows:

[0006] A high-voltage switchgear remote control circuit based on 4G communication technology, comprising an address setting module, a power supply module, a magnetic latching relay drive circuit, a magnetic latching relay, a 4G wireless module, a microprocessor module, and a communication module;

[0007] The output terminal of the address setting module is connected to the input terminal I / O port of the microprocessor module;

[0008] The input end of the magnetic latching relay drive circuit is connected to the I / O port of the microprocessor module output end, and the output end of the magnetic latching relay drive circuit is connected to the power supply end of the magnetic latching relay; the magnetic latching relay is used to control the opening and closing of the opening and closing coils;

[0009] The output terminal of the power supply module is connected to the power supply terminal corresponding to the microprocessor module;

[0010] The input end of the communication module is connected to the communication end corresponding to the microprocessor module; the output end of the communication module is connected to the input end of the 4G wireless module.

[0011] Preferably, the address setting module adopts a 24-bit DIP switch for setting the address signal of the circuit breaker.

[0012] Preferably, the power supply module adopts a 110-220VAC / DC switching power supply module to output a 5VDC voltage, and then a 5VDC to 3.3V voltage conversion module.

[0013] Preferably, the above-mentioned microprocessor module adopts an STM32 microprocessor chip.

[0014] Preferably, the magnetic latching relay driving circuit adopts an H-bridge circuit to control the reversing of the magnetic latching relay coil, thereby realizing the disconnection control of the magnetic latching relay.

[0015] Preferably, the magnetic latching relay is a 12V single-coil magnetic latching relay.

[0016] Preferably, the above-mentioned 4G wireless module adopts EC20 wireless 4G communication module.

[0017] Preferably, the communication module is an RS485 communication module.

[0018] The beneficial effects of the utility model are:

[0019] 1. No change to the original operating mechanism of the circuit breaker: By controlling the on-off of the opening and closing coil circuit, the circuit breaker operation is indirectly controlled without any physical modification of the circuit breaker.

[0020] 2. Remote locking and unlocking function: The magnetic latching relay is used to lock the opening and closing coil circuit. Remote unlocking can only be performed when the actual requirements are met (such as payment is settled), effectively preventing the equipment from being operated at will.

[0021] 3. High reliability and stability: Adopting mature 4G communication technology and high-performance microprocessor chips to ensure accurate transmission and execution of remote control instructions.

[0022] 4. Flexible configuration: The address setting module can flexibly set the address signal of the circuit breaker, which facilitates unified management of multiple devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a system block diagram of the present utility model. DETAILED DESCRIPTION

[0024] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0025] like Figure 1As shown, a high-voltage switchgear remote control circuit based on 4G communication technology includes an address setting module, a power supply module, a magnetic latching relay drive circuit, a magnetic latching relay, a 4G wireless module, a microprocessor module and a communication module;

[0026] The output terminal of the address setting module is connected to the input terminal I / O port of the microprocessor module;

[0027] The input end of the magnetic latching relay drive circuit is connected to the I / O port of the microprocessor module output end, and the output end of the magnetic latching relay drive circuit is connected to the power supply end of the magnetic latching relay; the magnetic latching relay is used to control the opening and closing of the opening and closing coils;

[0028] The output terminal of the power supply module is connected to the power supply terminal corresponding to the microprocessor module;

[0029] The input end of the communication module is connected to the communication end corresponding to the microprocessor module; the output end of the communication module is connected to the input end of the 4G wireless module.

[0030] Preferably, the address setting module adopts a 24-bit DIP switch for setting the address signal of the circuit breaker.

[0031] Preferably, the power supply module adopts a 110-220VAC / DC switching power supply module to output a 5VDC voltage, and then a 5VDC to 3.3V voltage conversion module.

[0032] Preferably, the above-mentioned microprocessor module adopts an STM32 microprocessor chip.

[0033] Preferably, the magnetic latching relay driving circuit adopts an H-bridge circuit to control the reversing of the magnetic latching relay coil, thereby realizing the disconnection control of the magnetic latching relay.

[0034] Preferably, the magnetic latching relay is a 12V single-coil magnetic latching relay.

[0035] Preferably, the above-mentioned 4G wireless module adopts EC20 wireless 4G communication module.

[0036] Preferably, the communication module is an RS485 communication module.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-voltage switchgear remote control circuit based on 4G communication technology, characterized in that: It includes an address setting module, a power supply module, a magnetic latching relay drive circuit, a magnetic latching relay, a 4G wireless module, a microprocessor module and a communication module; The output terminal of the address setting module is connected to the input terminal I / O port of the microprocessor module; The input end of the magnetic latching relay drive circuit is connected to the I / O port of the microprocessor module output end, and the output end of the magnetic latching relay drive circuit is connected to the power supply end of the magnetic latching relay; the magnetic latching relay is used to control the opening and closing of the opening and closing coils; The output terminal of the power supply module is connected to the power supply terminal corresponding to the microprocessor module; The input end of the communication module is connected to the communication end corresponding to the microprocessor module; the output end of the communication module is connected to the input end of the 4G wireless module.

2. The high-voltage switchgear remote control circuit based on 4G communication technology according to claim 1 is characterized in that: The address setting module uses a 24-bit dial switch to set the address signal of the circuit breaker.

3. The high-voltage switchgear remote control circuit based on 4G communication technology according to claim 1, characterized in that: The power supply module adopts a 110-220VAC / DC switching power supply module to output a 5VDC voltage, and then a 5VDC to 3.3V voltage conversion module.

4. The high-voltage switchgear remote control circuit based on 4G communication technology according to claim 1, characterized in that: The microprocessor module adopts an STM32 microprocessor chip.

5. The high-voltage switchgear remote control circuit based on 4G communication technology according to claim 1, characterized in that: The magnetic latching relay driving circuit adopts an H-bridge circuit to control the reversing of the magnetic latching relay coil, thereby realizing the disconnection control of the magnetic latching relay.

6. The high-voltage switchgear remote control circuit based on 4G communication technology according to claim 1, characterized in that: The magnetic latching relay adopts a 12V single-coil magnetic latching relay.

7. The high-voltage switchgear remote control circuit based on 4G communication technology according to claim 1, characterized in that: The 4G wireless module adopts EC20 wireless 4G communication module.

8. The high-voltage switchgear remote control circuit based on 4G communication technology according to claim 1, characterized in that: The communication module adopts RS485 communication module.

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