Lightning arrester on-line monitoring system

Abstract

The utility model provides an on-line monitoring system for a lightning arrester. The output end of monitoring equipment is connected with the input end of an IED (Intelligent Electronic Device); the output end of the IED device is connected with the upper computer; the monitoring equipment comprises a monitoring module, a data acquisition module and a signal conversion module; the monitoring module is arranged between the low-voltage end of the lightning arrester and the ground; the input end of the data acquisition module is connected with the output end of the monitoring module; the output end of the data acquisition module is connected with the input end of the signal conversion module; the output end of the signal conversion module is connected with the output end of the monitoring equipment; namely, the monitoring equipment is connected with the upper computer through the IED device, the monitoring data are collected into the upper computer through the data acquisition module and the signal conversion module in the monitoring equipment, and the upper computer can correspondingly process the monitoring data, so that the operation state of the lightning arrester can be remotely monitored efficiently in time, and the monitoring efficiency is improved. And safe and reliable operation of the lightning arrester is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric power signal processing technical field, more specifically, especially, it relates to a lightning arrester on -line monitoring system. BACKGROUND

[0002] As the key component of ensuring the equipment in the power system from lightning damage, the safe, reliable and efficient operation of the lightning arrester is very important. In order to achieve this goal, the introduction of lightning arrester on-line monitoring system becomes an indispensable link. The system not only greatly reduces the frequency and intensity of artificial inspection, but also effectively reduces the potential threat of high-voltage environment in the power station to the health and safety of workers.

[0003] At present, the lightning arrester on-line monitoring technology mainly uses traditional monitor. However, the traditional monitor is limited to local processing of various measurement point data of lightning arrester, and cannot realize remote transmission and centralized management of data. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a lightning arrester on-line monitoring system for collecting monitoring data into the upper computer, and the upper computer can process various monitoring data correspondingly, so as to efficiently and timely monitor the running state of lightning arrester remotely and ensure the safe and reliable operation of lightning arrester.

[0005] The application discloses a lightning arrester on-line monitoring system, which comprises an IED device, an upper computer and N monitoring devices, wherein N is an integer greater than 1.

[0006] The output end of the monitoring device is connected with the input end of the IED device.

[0007] The output end of the IED device is connected with the input end of the upper computer.

[0008] The monitoring device comprises a monitoring module, a data acquisition module and a signal conversion module.

[0009] The monitoring module is arranged between the low-voltage end of the lightning arrester and the ground, the input end of the data acquisition module is connected with the output end of the monitoring module, the output end of the data acquisition module is connected with the input end of the signal conversion module, and the output end of the signal conversion module is connected with the output end of the monitoring device.

[0010] Optionally, the first power supply is arranged on the monitoring device.

[0011] The first power supply supplies power for the monitoring device.

[0012] Optionally, the output end of the monitoring device adopts an RS485 interface.

[0013] Optionally, the data acquisition module further has a program end and a test end; wherein:

[0014] The program end of the data acquisition module is used for connecting with an external program downloading device; and the test end of the data acquisition module is used for connecting with an external test device.

[0015] The signal conversion module further has a program end; wherein:

[0016] The program end of the signal conversion module is used for connecting with an external program downloading device.

[0017] Optionally, the output end of the IED device and the input end of the upper computer are both Ethernet interfaces, and an Ethernet line is used to connect between the Ethernet interface of the IED device and the Ethernet interface of the upper computer.

[0018] The input end of the IED device adopts an RS485 / 232 interface or an optical signal interface.

[0019] Optionally, the IED device has a main power supply interface and a backup power supply interface.

[0020] Optionally, further comprising: a second power supply and a third power supply.

[0021] The main power supply interface of the IED device is connected with the second power supply.

[0022] The backup power supply interface of the IED device is connected with the third power supply.

[0023] Optionally, further comprising: an alarm device.

[0024] The input end of the alarm device is connected with the alarm end of the IED device.

[0025] Optionally, further comprising: a server.

[0026] The IED device communicates with the server.

[0027] Optionally, the upper computer comprises: a message communication module and a visualization module.

[0028] The input end of the message communication module is used as the input end of the upper computer.

[0029] The output end of the message communication module is connected with the input end of the visualization module.

[0030] From the above technical scheme can know, the utility model provides an arrester on -line monitoring system, wherein: the output of monitoring equipment is connected with the input of IED device, the output of IED device is connected with host computer, monitoring equipment includes monitoring module, data acquisition module and signal conversion module, monitoring module sets up between the low voltage end of arrester and ground, the input of data acquisition module is connected with the output of monitoring module, the output of data acquisition module is connected with the input of signal conversion module, the output of signal conversion module is connected with the output of monitoring equipment, that is to say, monitoring equipment is connected with host computer through IED device, and through data acquisition module and signal conversion module in monitoring equipment, monitoring data is gathered to host computer, and each monitoring data can be handled in host computer, and the running state of arrester can be remotely monitored efficiently and in time, and the safe and reliable operation of arrester is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is some embodiments of the utility model, and for ordinary skilled person in the art, other drawings can be obtained according to these drawings without creating labor.

[0032] Figure 1 It is a kind of arrester on -line monitoring system's schematic diagram provided in the embodiment of the utility model;

[0033] Figure 2 It is the schematic diagram of monitoring equipment involved in the arrester on -line monitoring system provided in the embodiment of the utility model;

[0034] Figure 3 It is the schematic diagram of monitoring equipment involved in the arrester on -line monitoring system provided in the embodiment of the utility model;

[0035] Figure 4 It is the schematic diagram of data acquisition module involved in the arrester on -line monitoring system provided in the embodiment of the utility model;

[0036] Figure 5 It is the schematic diagram of data acquisition module involved in the arrester on -line monitoring system provided in the embodiment of the utility model;

[0037] Figure 6 It is the schematic diagram of signal conversion module involved in the arrester on -line monitoring system provided in the embodiment of the utility model;

[0038] Figure 7 It is the schematic diagram of signal conversion module involved in the arrester on -line monitoring system provided in the embodiment of the utility model;

[0039] Figure 8 is a schematic diagram of a monitoring device involved in the lightning arrester on-line monitoring system provided by the embodiment of the utility model;

[0040] Figure 9 is a main circuit element connection schematic diagram of the monitoring device involved in the lightning arrester on-line monitoring system provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0042] In the present application, the terms "comprising", "containing" or any other variants thereof are intended to cover non-exclusive containing, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, the terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0043] The embodiments of the present application provide a lightning arrester on-line monitoring system, which is used to solve the problem that the conventional monitor in the prior art is limited by the design of on-site processing and cannot meet the demand of remote data transmission.

[0044] Referring to Figure 1 , the lightning arrester on-line monitoring system comprises an IED device 102, a host computer 103 and N monitoring devices 101. N is an integer greater than 1.

[0045] The output end of the monitoring device 101 is connected with the input end of the IED device 102.

[0046] Specifically, the monitoring device 101 transmits the monitored data to the IED device 102.

[0047] The output end of the IED device 102 is connected to the input end of the host computer 103.

[0048] The IED device 102 transmits the monitoring data received by the monitoring device 101 to the host computer 103.

[0049] It should be noted that the number of monitoring devices 101 can be multiple, and different monitoring devices 101 are arranged at different positions, for example, each monitoring device 101 corresponds to each arrester one by one, and each monitoring device 101 monitors the relevant parameters of the corresponding arrester.

[0050] Specifically, each monitoring device 101 is arranged between the low-voltage end of the corresponding arrester and the ground; more specifically, one end of the monitoring device 101 is connected to the low-voltage end of the arrester; the other end of the monitoring device 101 is grounded. The output end of the monitoring device 101 outputs the monitoring data to the host computer 103.

[0051] The monitoring data of the monitoring device 101 can include full current, action event, action times and temperature and other parameters of the arrester during operation, that is, the monitoring data of the monitoring device 101 is the operating parameter of the arrester, of course, the monitoring data can also include other parameters, which will not be described one by one here, and can be determined according to the actual situation, which is within the protection scope of the present application.

[0052] As shown in Figure 8 The monitoring device 101 includes a monitoring module 101-3, a data acquisition module 101-1 and a signal conversion module 101-2.

[0053] The monitoring module 101-3 is arranged between the low-voltage end of the arrester and the ground. Specifically, one end of the monitoring module 101-3 is connected to the low-voltage end of the arrester, and the other end of the monitoring module 101-3 is grounded.

[0054] The input end of the data acquisition module 101-1 is connected to the output end of the monitoring module 101-3, and the data acquisition module 101-1 acquires the data monitored by the monitoring module 101-3.

[0055] That is, the data acquisition module 101-1 is installed inside the monitoring device 101; the data acquisition module 101-1 is used to acquire full current, action event, action times, temperature and other parameters of the arrester during operation, which are all monitoring data.

[0056] The output end of the data acquisition module 101-1 is connected to the input end of the signal conversion module 101-2; the data acquisition module 101-1 transmits the acquired monitoring data to the signal conversion module 101-2.

[0057] That is, the signal conversion module 101-2 is installed inside the monitoring device 101; the signal conversion module 101-2 is used to further process the monitoring data collected by the data collection module 101-1 to obtain the resistive current of the arrester during operation.

[0058] The output end of the signal conversion module 101-2 is connected with the output end of the monitoring device 101; the signal conversion module 101-2 performs signal conversion processing on the monitoring data, such as converting analog signals into digital signals, and of course can also be other signal conversion processing, which will not be repeated here, and can be determined according to the actual situation, which is within the protection scope of the present application.

[0059] In the embodiment, the output end of the monitoring device 101 is connected with the input end of the IED device 102; the output end of the IED device 102 is connected with the host computer 103; the monitoring device 101 includes a monitoring module 101-3, a data collection module 101-1 and a signal conversion module 101-2; the monitoring module 101-3 is arranged between the low-voltage end of the arrester and the ground; the input end of the data collection module 101-1 is connected with the output end of the monitoring module 101-3; the output end of the data collection module 101-1 is connected with the input end of the signal conversion module 101-2; the output end of the signal conversion module 101-2 is connected with the output end of the monitoring device 101; that is, the monitoring device 101 is connected with the host computer 103 through the IED device 102, and the monitoring data is collected into the host computer 103 through the data collection module 101-1 and the signal conversion module 101-2 in the monitoring device 101, and the host computer 103 can process the monitoring data accordingly, so that the operation state of the arrester can be remotely monitored efficiently and timely, and the safe and reliable operation of the arrester is ensured.

[0060] Optionally, a first power supply is further included.

[0061] The first power supply supplies power for the monitoring device 101.

[0062] The first power supply can be a 24V power supply, that is, the monitoring device 101 is powered by 24V voltage, and of course the first power supply can also use other power supplies as long as it can stably supply power for the monitoring device 101, which will not be repeated here.

[0063] The first power supply is an isolation power supply, that is, the power supply of the monitoring device 101 is not affected by other devices.

[0064] Since the monitoring device 101 includes three modules, the three modules can share the same power supply, and of course can also use independent power supplies, at this time the first power supply can include multiple independent power supplies, which will not be repeated here, and can be determined according to the actual situation, which is within the protection scope of the present application.

[0065] Optionally, the output of the monitoring device 101 adopts an RS485 interface and is connected to the IED device 102.

[0066] Specifically, the output end of the monitoring device 101 can be understood as a terminal block, which is an RS485 interface.

[0067] The RS485 interface is a half-duplex serial communication protocol that uses differential signal transmission, supports multi-point connection, and allows multiple devices to communicate on the same bus. It has advantages such as long-distance transmission, multi-device connection, high anti-interference capability, and low cost.

[0068] The monitoring device 101 can use the Modbus-RTU communication protocol to communicate with the IED device 102. Of course, other communication protocols can also be used, as long as the monitoring device 101 and the IED device 102 can communicate.

[0069] like Figure 2 As shown, it illustrates a schematic diagram of monitoring device 101, wherein the output terminal of monitoring device 101 is as follows: Figure 2 The terminal 201 shown can receive power and communicate with the IED device 102 via a four-core twisted pair cable.

[0070] Specifically, two of the four twisted-pair cables are used to receive power, and the other two are used to communicate with the IED device 102.

[0071] Optional, such as Figure 9 As shown, the data acquisition module 101-1 includes: a first processing module 101-11, a first isolation power supply 101-12, a first MCU 101-13, and a first RS485 module 101-14.

[0072] The input terminal of the first processing module 101-12 is connected to the input terminal of the data acquisition module 101-1 and the output terminal of the monitoring module 101-3.

[0073] The output of the first arithmetic processing module 101-11 is connected to the input of the first MCU 101-13.

[0074] The first arithmetic processing module 101-11 includes two differential amplifiers. That is, the first arithmetic processing module 101-11 is used to differentially amplify the output signal of the monitoring module 101-3 and then transmit it to the first MCU 101-13.

[0075] The input terminal of the first isolation power supply 101-12 can receive ±24V power supply to power the first MCU 101-13.

[0076] The power supply terminal of the first MCU 101-13 is connected to the output terminal of the first isolation power supply 101-12. That is, the first isolation power supply 101-12 supplies power to the first MCU 101-13.

[0077] The output of the first MCU 101-13 is connected to the input of the first RS485 module 101-14.

[0078] The output terminal of the first RS485 module 101-14 serves as the output terminal of the data acquisition module 101-1 and is connected to the input terminal of the signal conversion module 101-2.

[0079] In other words, the first MCU 101-13 controls the first RS485 module 101-14 to output the corresponding data signal to the signal conversion module 101-2.

[0080] Optionally, the data acquisition module 101-1 also includes a program terminal and a test terminal; wherein:

[0081] The program terminal of the data acquisition module 101-1 is used to connect to an external program downloading device. In other words, embedded programs can be downloaded through the program terminal of the data acquisition module 101-1. For example, the program downloading device connects to the data acquisition module 101-1 through the program terminal, and then the program downloading device downloads the embedded program to the data acquisition module 101-1 so that the data acquisition module 101-1 can perform data acquisition according to the program in subsequent use.

[0082] The test terminal of the data acquisition module 101-1 is a program testing interface used to connect with external testing equipment to test the data acquisition module 101-1.

[0083] like Figure 4 and Figure 5 The diagrams shown depict the circuit diagrams of the front and back sides of the circuit board of the data acquisition module 101-1. Here, 401-405 are interfaces; ports A and B form a set of interfaces 401, which are the input terminals of the data acquisition module 101-1 and connect to the output terminals of the circuit board of the monitoring module 101-3; interface 402 is the program terminal of the data acquisition module 101-1, used to download embedded programs to the circuit board; interface 403 has four pins, two of which are power supply pins; the other two are RS485 pins, serving as the output terminals of the data acquisition module 101-1 and connecting to interface 502 of the signal conversion board; interfaces 404 and 405 are both test terminals of the data acquisition module 101-1.

[0084] The circuit board of data acquisition module 101-1 uses isolated power supply 409 (i.e. Figure 9To improve the anti-interference and reliability of the operation, the main control MCU 406 (i.e., 101-12) in the circuit board of data acquisition module 101-1 is used. Figure 9 The 101-13 module uses the STM32F446 series chip to meet the performance requirements of the circuit and program. The circuit board of the data acquisition module 101-1 uses two differential amplifiers (such as...). Figure 5 The 407-1 and 407-2 shown perform signal processing, and the RS485 module 408 (i.e., ...) on the data acquisition module 101-1 circuit board performs signal processing. Figure 9 (101-14 in the middle), after acquiring data from interface 401, it is transmitted to signal conversion module 101-2 through interface 403.

[0085] Optionally, the signal conversion module 101-2 includes: a second arithmetic processing module 101-21, a second isolation power supply 101-22, a second MCU 101-23, and a second RS485 module 101-24.

[0086] The input terminal of the second arithmetic processing module 101-21 serves as the input terminal of the signal conversion module 101-2 and receives the data output by the data acquisition module 101-1.

[0087] The output of the second arithmetic processing module 101-21 is connected to the input of the second MCU 101-23.

[0088] The second arithmetic processing module 101-21 includes an arithmetic processing unit and a storage unit, used to perform arithmetic processing on the received data and store it.

[0089] The power supply terminal of the second MCU 101-23 is connected to the output terminal of the second isolation power supply 101-22.

[0090] The input terminal of the second isolated power supply 101-22 can receive ±24V power supply to power the second MCU 101-23.

[0091] The output of the second MCU 101-23 is connected to the input of the second RS485 module 101-24.

[0092] The output of the second RS485 module 101-24 serves as the output of the signal conversion module 101.

[0093] In other words, the second MCU 101-23 controls the second RS485 module 101-24 to output corresponding data signals to the IED device 102.

[0094] Specifically, such as Figure 9The diagram shows the connection logic of the main circuit components of the data acquisition module 101-1 and the signal conversion module 101-2. Specifically: the data acquisition module 101-1 is powered by an external 24V power supply connected to the first isolated power supply 101-12 within the module, supplying power to the first MCU 101-13. Data from the monitoring module 101-3 first enters the first processing module 101-11 within the data acquisition module 101-1, where the electrical signal is filtered and amplified before entering the first MCU 101-13 for calculation. The calculation result is then transmitted to the signal conversion module 101-2 via the first RS485 module 101-14. The signal conversion module 101-2 is powered by an external 24V power supply connected to the second isolated power supply 101-22 within the module, supplying power to the second MCU 101-23. Data from the data acquisition module 101-1 is first processed and stored before entering the second MCU 101-23 for calculation. The calculation result is then transmitted to the IED device 102 via the second RS485 module 101-24.

[0095] The signal conversion module 101-2 also has a programmable interface; among which:

[0096] The program terminal of the signal conversion module 101-2 is used to connect to an external program downloading device. In other words, embedded programs can be downloaded through the program terminal of the signal conversion module 101-2. For example, the program downloading device connects to the signal conversion module 101-2 through the program terminal, and then downloads the embedded program to the signal conversion module 101-2 so that the signal conversion module 101-2 can perform signal conversion according to the program in subsequent use.

[0097] like Figure 6 and Figure 7 The diagram shows circuit diagrams of the front and back sides of the circuit board of signal conversion module 101-2. Interfaces 501-503 are interfaces; interface 501 is the program interface of signal conversion module 101-2; interface 502 serves as the input terminal of signal conversion module 101-2, connected to the data acquisition board; and interface 503 serves as the output terminal of the circuit board of signal conversion module 101-2, connected to the wiring terminals (output terminal) of monitoring device 101 inside monitoring device 101. The circuit board of signal conversion module 101-2 uses an isolated power supply 505 to improve anti-interference and reliability. The main control MCU 504 of the circuit board of signal conversion module 101-2 uses an STM32F446 series chip to meet the performance requirements of the circuit and program. The RS485 module of the circuit board of signal conversion module 101-2 (including...) Figure 6 As shown in 506-1 and 506-2, data is received from the data acquisition board through interface 502 and transmitted to the IED device 102 through interface 503.

[0098] Optionally, both the output of the IED device 102 and the input of the host computer 103 are Ethernet interfaces, and the Ethernet interfaces of the IED device 102 and the host computer 103 are connected by an Ethernet cable.

[0099] Specifically, the output of the IED device 102 is connected to the input of the host computer 103 via an Ethernet cable.

[0100] It should be noted that the IED device 102 supports the Modbus-RTU / TCP communication protocol, that is, the Modbus-RTU / TCP communication protocol can be used to transmit data packets with the host computer 103 and the monitoring device 101.

[0101] The input terminal of the IED device 102 adopts an RS485 / 232 interface or an optical signal interface.

[0102] In this example, the optical signal interface can be a reserved interface. Different models of monitors have different transmission methods, so you can choose the one that matches your transmission method.

[0103] As can be seen from the above description, the input terminal of the IED device 102 is connected to the monitoring device 101, and the output terminal of the monitoring device 101 uses an RS485 interface; that is, the input terminal of the IED device 102 is connected to the output terminal of the monitoring device 101 via a cable.

[0104] The IED device 102 may have two optical signal interfaces, two Ethernet interfaces, and eight RS232 / 485 interfaces. The RS232 / 485 interfaces can adaptively switch between RS232 and RS485 modes. The RS232 / 485 interfaces are used to connect to the output of the monitoring device 101; that is, the IED device 102 can connect to multiple monitoring devices 101. The optical signal interfaces are also used to connect to the output of the monitoring devices 101.

[0105] The Ethernet interface is used to connect to the host computer 103; that is, the IED device 102 can support the connection of multiple host computers 103.

[0106] The various interfaces of the IED device can be expanded through switches or hubs, so multiple devices can be connected.

[0107] It should be noted that intelligent monitors exhibit more powerful data acquisition and transmission capabilities. They can not only monitor more types of measurement point information, but also remotely send this data to the backend host computer 103 or server 104 for centralized monitoring and analysis. However, although some intelligent monitors have remote transmission capabilities, ensuring the stability, accuracy, and real-time performance of data transmission in the complex and ever-changing power plant environment has become a major bottleneck restricting their widespread application.

[0108] In this application, wired transmission and wired power supply are used between the host computer 103 and the IED device 102, as well as between the IED device 102 and the monitoring device 101; the monitoring device 101 uses an RS485 interface to transmit data, which achieves fast data transmission speed, strong anti-interference ability, and ensures the accuracy and timeliness of the collected data.

[0109] Optionally, the IED device 102 has a main power supply interface and a backup power supply interface.

[0110] In other words, the IED device 102 can support dual power supply, such as primary and backup power supply, and the primary and backup power supplies can switch between each other.

[0111] like Figure 3 The diagram shows a schematic of the IED device 102, where there are two power supply interfaces at 301-1, namely the main power supply interface and the backup power supply interface; 301-2 is an RS485 / 232 interface, 301-3 is an optical signal interface, and 301-4 is an Ethernet interface.

[0112] Optionally, a second power supply and a third power supply may also be included.

[0113] The main power supply interface of the IED device 102 is connected to the second power supply.

[0114] In other words, the second power source serves as the main power source for the IED device 102.

[0115] The backup power interface of the IED device 102 is connected to a third power source.

[0116] The third power source serves as a backup power source for the IED device 102.

[0117] Both the first power supply and the second power supply can be 220VAC power, that is, the IED device 102 is powered by 220VAC.

[0118] When the second power supply is working properly, the second power supply is used to power the IED device 102; when the second power supply is not working properly, for example, when the second power supply fails, the third power supply is used to power the IED device 102.

[0119] It also includes: alarm devices.

[0120] The input terminal of the alarm device is connected to the alarm terminal of the IED device 102.

[0121] When the main power supply interface of IED device 102 loses power, IED device 102 sends an alarm signal to the alarm device, which then sounds an alarm. In other words, the surge arrester online monitoring system supports power failure alarms for IED device 102. This alarm device can issue an alarm signal to remind personnel to take action and ensure the normal operation of IED device 102 or the power supply.

[0122] There are many ways for an alarm device to sound an alarm, such as sounding a horn, flashing lights, or sending alarm information to the host computer 103 or a client, etc. These will not be elaborated here. The appropriate method depends on the actual situation and is within the scope of protection of this application.

[0123] Optionally, it also includes: server 104.

[0124] IED device 102 communicates with server 104.

[0125] The IED device 102 communicates with the server 104 using the IEC61850 communication protocol.

[0126] Of course, the IED device 102 can also use other communication protocols, which will not be elaborated here. It can be determined according to the actual situation, and all of them are within the protection scope of this application.

[0127] Optional, such as Figure 1 As shown, the host computer 103 includes: a message communication module 103-1 and a visualization module 103-2.

[0128] The input terminal of the message communication module 103-1 serves as the input terminal of the host computer 103, receiving monitoring data sent by the IED device 102.

[0129] The output of the message communication module 103-1 is connected to the input of the visualization module 103-2.

[0130] The message communication module 103-1 is mainly used to communicate with the IED device 102. The visualization module 103-2 is mainly used to display monitoring data. The visualization module 103-2 can also interact with users and receive user requests.

[0131] In other words, the host computer 103 is equipped with a message communication module 103-1 that is compatible with the IED device 102. It can view and store data messages, monitor the operation and communication status of the device, and configure various measurement points of the monitoring device 101.

[0132] The host computer 103 is equipped with a data visualization module 103-2, which can monitor the operation data of the surge arrester in real time and make accurate judgments on the operation status of the surge arrester based on the monitored data.

[0133] In this embodiment, the monitoring device 101 uploads the collected data to the IED device 102 through a specific communication protocol and interface via the data acquisition module 101-1 and the signal conversion module 101-2. The IED device 102 then forwards the data to the host computer 103. The host computer 103 software then visualizes the data and displays the real-time operating status of the surge arrester. In other words, the online surge arrester monitoring system can monitor various parameters during the operation of the surge arrester. It can efficiently and timely remotely monitor the operating status of the surge arrester, providing strong protection for the safe and reliable operation of the surge arrester.

[0134] The features described in the various embodiments of this specification can be substituted for or combined with each other. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0135] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0136] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An online monitoring system for surge arresters, characterized in that, It includes an IED device, a host computer, and N monitoring devices; N is an integer greater than 1. The output terminal of the monitoring device is connected to the input terminal of the IED device; The output terminal of the IED device is connected to the input terminal of the host computer; The monitoring equipment includes a monitoring module, a data acquisition module, and a signal conversion module; The monitoring module is positioned between the low-voltage end of the surge arrester and ground; the input end of the data acquisition module is connected to the output end of the monitoring module; the output end of the data acquisition module is connected to the input end of the signal conversion module; and the output end of the signal conversion module is connected to the output end of the monitoring device.

2. The online monitoring system for surge arresters according to claim 1, characterized in that, It also includes the first power source; The first power source supplies power to the monitoring device.

3. The online monitoring system for surge arresters according to claim 1, characterized in that, The output of the monitoring device uses an RS485 interface.

4. The online monitoring system for surge arresters according to claim 1, characterized in that, The data acquisition module includes: a first processing module, a first isolated power supply, a first MCU, and a first RS485 module; The input terminal of the first arithmetic processing module serves as the input terminal of the data acquisition module; The output of the first arithmetic processing module is connected to the input of the first MCU; The power supply terminal of the first MCU is connected to the output terminal of the first isolated power supply; The output terminal of the first MCU is connected to the input terminal of the first RS485 module; The output terminal of the first RS485 module serves as the output terminal of the data acquisition module.

5. The online monitoring system for surge arresters according to claim 1, characterized in that, The signal conversion module includes: a second arithmetic processing module, a second isolated power supply, a second MCU, and a second RS485 module; The input terminal of the second arithmetic processing module serves as the input terminal of the signal conversion module; The output of the second arithmetic processing module is connected to the input of the second MCU; The power supply terminal of the second MCU is connected to the output terminal of the second isolated power supply; The output terminal of the second MCU is connected to the input terminal of the second RS485 module; The output terminal of the second RS485 module serves as the output terminal of the signal conversion module.

6. The online monitoring system for surge arresters according to claim 1, characterized in that, The output terminal of the IED device and the input terminal of the host computer are both Ethernet interfaces, and the Ethernet interfaces of the IED device and the Ethernet interfaces of the host computer are connected by an Ethernet cable. The input terminal of the IED device adopts an RS485 / 232 interface or an optical signal interface.

7. The online monitoring system for surge arresters according to claim 1, characterized in that, The IED device has a main power supply interface and a backup power supply interface; The surge arrester online monitoring system also includes: a second power supply and a third power supply; The main power supply interface of the IED device is connected to the second power supply. The backup power interface of the IED device is connected to the third power source.

8. The online monitoring system for surge arresters according to claim 7, characterized in that, Also includes: Alarm device; The input terminal of the alarm device is connected to the alarm terminal of the IED device.

9. The online monitoring system for surge arresters according to any one of claims 1-8, characterized in that, Also includes: server; The IED device communicates with the server.

10. The online monitoring system for surge arresters according to any one of claims 1-8, characterized in that, The host computer includes: a message communication module and a visualization module; The input terminal of the message communication module serves as the input terminal of the host computer. The output of the message communication module is connected to the input of the visualization module.

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