A wireless transmission system for an intelligent surge protector

Abstract

The present invention relates to a wireless transmission system for an intelligent surge protector, which includes an antenna, a pluggable lithium battery, a battery monitoring module, a charging module, and a wireless transmission module that are installed together with the SPD and the data acquisition unit. The wireless transmission module is connected to the charging module. The charging module is connected between the external power supply through an electronic switch and is in an open circuit state under normal operation. The battery monitoring module is connected to the pluggable lithium battery and is used to monitor the capacity of the pluggable lithium battery. The pluggable lithium battery is connected to the wireless transmission module. The antenna is installed on the SPD and is connected to the wireless transmission module. The wireless transmission module is wirelessly connected to the lightning protection intelligent management system through the antenna. The charging module of the wireless transmission module is connected to the external power supply through an electronic switch and is in an open circuit state under normal operation. Since there is no external connection line at this time, the wireless transmission module is not damaged by a secondary lightning strike at this time, improving the operating efficiency and stability of the system.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent lightning protection, and particularly to a wireless transmission system for an intelligent surge protector. Background Art

[0002] A surge protector (SPD), also known as a lightning arrester, is an electronic device that provides safety protection for various electronic devices, instruments, and communication lines. When a sudden peak current or voltage occurs in an electrical circuit or communication line due to external interference, the surge protector can conduct and shunt in an extremely short time, thereby avoiding damage to other devices in the circuit caused by the surge.

[0003] In the existing technology, the application of intelligent SPD has solved the problem of damage monitoring of power SPD, but at the same time has brought factors such as unstable surge data transmission.

[0004] Due to the large number and relatively scattered distribution of SPDs, the traditional intelligent SPD using wired transmission brings difficulties in wiring and debugging in actual projects. Currently, the wireless transmission intelligent SPD on the market requires external power supply due to power consumption problems or unstable wireless signals, which may cause secondary damage to the line by lightning strikes, resulting in the system for monitoring lightning damage being damaged by lightning strikes instead. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a wireless transmission system for an intelligent surge protector, which can overcome the problems of difficult wiring for data transmission such as surge aging of intelligent SPD, unstable signals, and secondary lightning damage caused by external lines, and improve the operation efficiency and stability of the system.

[0006] The above object of the present invention is achieved through the following technical solutions:

[0007] A wireless transmission system for an intelligent surge protector includes an antenna, a pluggable lithium battery, a battery monitoring module, a charging module, and a wireless transmission module, which are installed together with the SPD and the data acquisition unit. The wireless transmission module is connected to the charging module;

[0008] The charging module is connected between the external power supply through an electronic switch and is in an open circuit state under normal operation. The battery monitoring module is connected to the pluggable lithium battery and is used to monitor the capacity of the pluggable lithium battery;

[0009] The pluggable lithium battery is connected to the wireless transmission module. The antenna is installed on the SPD and is connected to the wireless transmission module. The wireless transmission module is wirelessly connected to the lightning protection intelligent management system through the antenna.

[0010] Through the above technical solution, the charging module of the wireless transmission module is connected to the external power supply through an electronic switch, and is in an open circuit state under normal operation. Since there is no external connection line at this time, the wireless transmission module is not damaged by lightning strikes. In addition, the battery monitoring module overcomes the problems of data transmission wiring difficulties and unstable signals such as intelligent SPD surge aging, while ensuring the wireless transmission stability and low power consumption of lightning surge data, and improving the operating efficiency and stability of the system.

[0011] In a preferred example, the present invention can be further configured as follows: under working conditions, the wireless transmission module adaptively selects the NB-IoTs, 5G or 4G mode to perform surge aging data transmission, and its power supply is powered by the pluggable lithium battery.

[0012] Through the above technical solutions, compared with the traditional 2G or Zigbee wireless transmission methods, NB-IoTs, 5G or 4G wireless transmission methods have more stable transmission and lower power consumption, which improves the practicality of the wireless transmission system.

[0013] In a preferred example, the present invention can be further configured as follows: when the battery monitoring module detects that the capacity of the pluggable lithium battery is less than a preset value, the preset value is 20%, and at this time, the maintenance personnel are notified to operate the remote control software to close the electronic switch when there is no lightning strike;

[0014] The electronic switch can also be automatically closed according to a preset mode, and the wireless transmission module is charged by the external power supply through the charging module. When the charging is completed, the electronic switch automatically returns to an open circuit state.

[0015] Through the above technical solution, the two modes enable the entire system to operate normally and uninterruptedly, facilitating the wireless transmission module to transmit data stably.

[0016] In a preferred example, the present invention can be further configured as follows: when the pluggable battery has aged, the battery monitoring module notifies the maintenance personnel to replace the pluggable battery;

[0017] During replacement, the electronic switch is closed in conjunction with the plug-in mechanism, and the wireless transmission module is powered by the external power supply.

[0018] The above technical solution ensures that the entire system does not need to be shut down for maintenance in whole or in part, and can maintain and replace module components while ensuring normal operation without interruption, greatly improving the operating efficiency and stability of the system.

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] 1. The charging module of the wireless transmission module is connected to the external power supply through an electronic switch, which is in an open circuit state under normal operation. Since there is no external connection line at this time, the wireless transmission module is not damaged by lightning strikes a second time. And through the battery monitoring module, problems such as difficult data transmission wiring and unstable signals caused by the aging of intelligent SPD surge are overcome. While ensuring the stability and low power consumption of wireless transmission of lightning strike surge data, the operation efficiency and stability of the system are improved.

[0021] 2. Compared with the traditional wireless transmission methods of 2G or Zigbee, the wireless transmission methods of NB-IoTs, 5G or 4G are more stable and have lower power consumption, improving the practicability of the wireless transmission system.

[0022] 3. The hot-swappable lithium battery supports the hot-swappable function, ensuring that the entire system does not need to be shut down for overall or partial maintenance. It can completely guarantee normal operation without interruption, and perform maintenance, replacement, etc. of module components, greatly improving the operation efficiency and stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural block diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the device structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the operation principle of the present invention.

[0026] Reference numerals: 1, antenna; 2, hot-swappable lithium battery; 3, battery monitoring module; 4, charging module; 5, wireless transmission module; 6, external power supply; 7, electronic switch. DETAILED DESCRIPTION OF THE INVENTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Refer to Figure 1 , a wireless transmission system of an intelligent surge protector disclosed by the present invention, includes an antenna 1, a hot-swappable lithium battery 2, a battery monitoring module 3, a charging module 4, and a wireless transmission module 5 that are installed together with the SPD and the data acquisition unit. The wireless transmission module 5 is connected to the charging module 4.

[0029] The charging module 4 is connected to the external power supply 6 through an electronic switch 7, which is in an open circuit state under normal operation. The battery monitoring module 3 is connected to the hot-swappable lithium battery 2 for monitoring the capacity of the hot-swappable lithium battery 2. The hot-swappable lithium battery 2 is connected to the wireless transmission module 5. The antenna 1 is installed on the SPD and connected to the wireless transmission module 5. The wireless transmission module 5 is wirelessly connected to the lightning protection intelligent management system through the antenna 1 (see Figure 3 ).

[0030] Reference Figure 2 , two interconnected intelligent PCB boards are installed inside the base of the SPD, namely the left intelligent PCB board and the right small PCB board. The size of the left intelligent PCB board is 50*85*1.6 mm, and 1.6 mm is the thickness of the PCB. The right small PCB board is a telemetry output board and needs to be connected to the left intelligent board, which can be connected integrally, by strip lines or by flexible flat cables. In this embodiment, the PCB can be a conventional board or a flexible board. The size and shape of the PCB are determined according to the actual structure inside the base.

[0031] And the width of the intelligent appearance part is increased by 54 mm, the upper and lower lengths remain the same as the original height of the SPD, and terminals with a spacing of 5.08 (full row) are placed in two rows up and down. The lower left side of the panel is the SMA antenna 1 interface. Reference Figure 2 , the battery module and the lightning arrester module share the same kind of shell and are pluggable modules.

[0032] For 4P products: 3 resistive leakage current coils (circular) plus 1 Rogowski coil (square); for 3P products: 2 resistive leakage current coils (circular) plus 1 Rogowski coil (square); for 2P products: 1 resistive leakage current coil (circular) plus 1 Rogowski coil (square). Reference Figure 2 , the thickness of the base is increased by the length of one module as the thickness (mainly considering that the diameter of the resistive leakage current coil is too large and needs to be stacked, and the thickness only needs to meet the placement of the coil).

[0033] Among them, reference Figure 3 , during operation, the wireless transmission module 5 adaptively selects the NB-IoTs, 5G or 4G mode to transmit surge aging data, and its power supply uses a pluggable lithium battery. Compared with the traditional 2G or Zigbee wireless transmission methods, the NB-IoTs, 5G or 4G wireless transmission methods are more stable, have lower power consumption, and improve the practicability of the wireless transmission system.

[0034] Furthermore, when the battery monitoring module 3 detects that the capacity of the pluggable lithium battery 2 is less than the preset value, and the preset value is 20%, it notifies the maintenance personnel to operate the remote control software to close the electronic switch 7 when there is no lightning strike. It can also automatically close the electronic switch 7 according to the preset mode. At this time, the external power supply 6 charges the wireless transmission module 5 through the charging module 4. When the charging is completed, the electronic switch 7 automatically returns to the open state. These two modes enable the entire system to operate normally without interruption, facilitating the stable transmission of data by the wireless transmission module 5.

[0035] When the pluggable battery is aged, the battery monitoring module 3 notifies the maintenance personnel to replace the pluggable battery. During the replacement, the electronic switch 7 is closed in conjunction with the plug-in mechanism, and the wireless transmission module 5 is powered by the external power supply 6. This arrangement ensures that the entire system does not need to be shut down for maintenance in whole or in part, and the maintenance and replacement of module components can be carried out while ensuring normal operation without interruption, which greatly improves the operating efficiency and stability of the system.

[0036] The implementation principle of this embodiment is: the charging module 4 of the wireless transmission module 5 is connected to the external power supply 6 through an electronic switch 7, which is in an open circuit state under normal operation. Since there is no external connection line at this time, the wireless transmission module 5 is not subject to secondary damage caused by lightning strikes.

[0037] In addition, the battery monitoring module 3 overcomes the problems of difficult data transmission wiring and unstable signals such as intelligent SPD surge aging, while ensuring the wireless transmission stability and low power consumption of lightning surge data, and improving the operating efficiency and stability of the system.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wireless transmission system for intelligent surge protectors, which is used in scenarios where wireless transmission intelligent SPDs require external power supply, causing the system that monitors lightning damage to be damaged by lightning. Features: It comprises an antenna (1) installed together with an SPD and a data acquisition unit, a pluggable lithium battery (2), a battery monitoring module (3), a charging module (4) and a wireless transmission module (5), wherein the wireless transmission module (5) is connected to the charging module (4); Under working conditions, the wireless transmission module (5) is powered by the pluggable lithium battery (2); the charging module (4) of the wireless transmission module (5) is connected to an external power source (6) via an electronic switch (7), and the electronic switch (7) is in an open circuit state under normal working conditions. Since there is no external connection line at this time, the wireless transmission module (5) is not subject to secondary damage caused by lightning strikes; the battery monitoring module (3) is connected to the pluggable lithium battery (2) to monitor the capacity of the pluggable lithium battery (2), thereby overcoming the problems of difficult data transmission wiring and unstable signals caused by surge aging of the intelligent SPD; The pluggable lithium battery (2) is connected to the wireless transmission module (5), the antenna (1) is installed on the SPD and connected to the wireless transmission module (5), and the wireless transmission module (5) is wirelessly connected to the lightning protection intelligent management system through the antenna (1); When the battery monitoring module (3) detects that the capacity of the pluggable lithium battery (2) is less than a preset value, the preset value is 20%, and at this time, the maintenance personnel are notified to operate the remote control software to close the electronic switch (7) when there is no lightning strike; or the electronic switch (7) is automatically closed according to a preset mode, and at this time, the pluggable lithium battery (2) is charged by the external power supply (6) through the charging module (4), and when the charging is completed, the electronic switch (7) automatically returns to an open circuit state; When the pluggable lithium battery (2) ages, the battery monitoring module (3) notifies the maintenance personnel to replace the pluggable lithium battery (2); during the replacement, the electronic switch (7) is closed in conjunction with the plug-in mechanism, and the wireless transmission module (5) is powered by the external power supply (6).

2. The wireless transmission system of a smart surge protector according to claim 1, Features: In working condition, the wireless transmission module (5) adaptively selects the NB-IoTs, 5G or 4G mode to perform surge aging data transmission, and is powered by the pluggable lithium battery.

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