A monitoring method and device for overvoltage protection equipment

Abstract

The present invention discloses a monitoring method and device for overvoltage protection equipment. The method first determines the current protection mode according to the equipment quantity information of the monitoring equipment and the number of times overvoltage occurs in each monitoring equipment within a preset time period, and then collects the protection information of the corresponding overvoltage protection equipment according to the determined protection mode, and then determines whether the corresponding overvoltage protection equipment is abnormal. By implementing the present invention, dynamic monitoring of overvoltage protection equipment can be achieved, avoiding redundant monitoring of unused overvoltage protection equipment and eliminating redundant monitoring situations.

Description

Technical Field

[0001] The present invention relates to the technical field of overvoltage protection, and in particular to a monitoring method and device for overvoltage protection equipment. Background Art

[0002] Overvoltage refers to the phenomenon of long-term voltage fluctuation when the RMS value of AC voltage under power frequency rises to more than 10% of the rated value and lasts for more than 1 minute; the occurrence of overvoltage is usually the result of the moment of load switching. It occurs when the inductive or capacitive load is connected or disconnected during normal use;

[0003] When protecting against overvoltage, a variety of protective equipment will be used. By monitoring the status of the protective equipment, the real-time status of the protective equipment can be understood. When abnormal protection is found, it can be maintained in time to ensure stable overvoltage protection.

[0004] The existing monitoring of overvoltage protection equipment has a single monitoring mode, which is generally a fixed and continuous monitoring of one or more protection devices, and the type of the monitored overvoltage protection equipment remains unchanged; however, in actual situations, there are multiple protection modes, and not all overvoltage protection devices need to be used during a protection process. At this time, it is unnecessary to continuously monitor the unused overvoltage protection equipment; therefore, the use of existing overvoltage protection equipment monitoring methods will result in more redundant monitoring situations. Summary of the invention

[0005] The embodiments of the present invention provide a method and apparatus for monitoring overvoltage protection equipment, which can automatically determine the type of overvoltage protection equipment to be monitored according to a protection mode, exclude equipment items that do not need to be monitored, and avoid redundant monitoring.

[0006] An embodiment of the present invention provides a method for monitoring an overvoltage protection device, comprising: obtaining device quantity information of monitoring devices and number of times overvoltage occurs in each monitoring device within a preset time period;

[0007] Generate a mode setting evaluation value according to the device quantity information and each number of times information, and then determine the current protection mode according to the mode setting evaluation value; wherein the protection mode includes: a first protection mode, a second protection mode and a third protection mode;

[0008] When the first protection mode is determined, a lightning rod is set for protection and first protection information is obtained; and whether the lightning rod is abnormal is determined according to the first protection information; wherein the first protection information includes: lightning rod installation time, lightning rod image information, and lightning rod location information;

[0009] When the second protection mode is determined, a gapless lightning arrester and a lightning rod are set for protection, and second protection information and the first protection information are obtained; whether the lightning rod is abnormal is determined according to the first protection information, and whether the gapless lightning arrester is abnormal is determined according to the second protection information; wherein the second protection information includes: service life of the gapless lightning arrester, installation time of the gapless lightning arrester, and appearance image information of the gapless lightning arrester;

[0010] When the third protection mode is determined, a gapless lightning arrester, a gapped lightning arrester and a lightning rod are set for protection, and the third protection information, the second protection information and the first protection information are obtained; whether there is an abnormality in the lightning rod is determined according to the first protection information, whether there is an abnormality in the gapless lightning arrester is determined according to the second protection information, and whether there is an abnormality in the gapped lightning arrester is determined according to the third protection information; wherein the third protection information includes: the service life of the gapped lightning arrester, the installation time of the gapped lightning arrester and the appearance image information of the gapped lightning arrester.

[0011] Further, determining whether there is an abnormality in the lightning rod according to the first protection information includes:

[0012] Calculate the difference between the installation time of the lightning rod and the current time to obtain the installation time of the lightning rod;

[0013] Calculate the angle between the current lightning rod and the horizontal plane according to the lightning rod image information to obtain a first angle;

[0014] According to the position information of the lightning rod, the distance between the current position of the lightning rod and the initial position when the lightning rod is installed is calculated to obtain the offset distance;

[0015] When any abnormal condition of the lightning rod occurs, it is determined that the lightning rod is abnormal; wherein the abnormal condition of the lightning rod includes: the installation time is greater than the first preset installation time, the first angle is greater than the first preset angle, and the offset distance is greater than the first preset distance.

[0016] Further, determining whether the gapless lightning arrester is abnormal according to the second protection information includes:

[0017] Calculating the service life of the gapless lightning arrester according to the installation time of the gapless lightning arrester, and then calculating the difference between the service life of the gapless lightning arrester and the service life of the gapless lightning arrester to obtain the life difference of the gapless lightning arrester;

[0018] Performing a similarity comparison between the appearance image information of the gapless lightning arrester and the initial appearance image of the gapless lightning arrester to determine a first similarity value;

[0019] When any abnormal condition of the gapless lightning arrester occurs, it is determined that the gapless lightning arrester is abnormal; wherein the abnormal condition of the gapless lightning arrester includes: the life difference of the gapless lightning arrester is less than the first preset life difference and the first similarity value is less than the first similarity threshold.

[0020] Furthermore, after determining that the gapless lightning arrester is abnormal, the method further includes: generating replacement information for the gapless lightning arrester.

[0021] Further, determining whether there is an abnormality in the gap arrester according to the third protection information includes:

[0022] Calculating the service life of the gapped lightning arrester according to the installation time of the gapped lightning arrester, and then calculating the difference between the service life of the gapped lightning arrester and the service life of the gapped lightning arrester to obtain the service life difference of the gapped lightning arrester;

[0023] Performing a similarity comparison between the appearance image information of the arrester with a gap and the initial appearance image of the arrester with a gap, and determining a second similarity value;

[0024] When any abnormal condition of the gapped lightning arrester occurs, it is determined that the gapped lightning arrester is abnormal; wherein the abnormal condition of the gapped lightning arrester includes: the life difference of the gapped lightning arrester is less than the second preset life difference and the second similarity value is less than the second similarity threshold.

[0025] Furthermore, after determining that the gapped lightning arrester is abnormal, the method further includes: generating replacement information for the gapped lightning arrester.

[0026] Furthermore, the third protection information further includes: the number of arresters with gaps;

[0027] The monitoring method for overvoltage protection equipment also includes: when determining to be the third protection mode, judging whether the number of devices of the monitoring equipment and the number of arresters with gaps are greater than a number threshold; if the number of devices of the monitoring equipment is greater than the number threshold, but the number of arresters with gaps is less than the number threshold, generating a prompt message to increase the number of devices with gap arresters.

[0028] Based on the above method embodiment, the present invention provides a corresponding device embodiment;

[0029] An embodiment of the present invention provides a monitoring device for an overvoltage protection device, comprising: a data acquisition module, a protection mode determination module, a first monitoring module, a second monitoring module and a third monitoring module;

[0030] The data acquisition module is used to obtain the number of monitoring devices and the number of times overvoltage occurs in each monitoring device within a preset time period;

[0031] The protection mode determination module is used to generate a mode setting evaluation value according to the device quantity information and each number of times information, and then determine the current protection mode according to the mode setting evaluation value; wherein the protection mode includes: a first protection mode, a second protection mode and a third protection mode;

[0032] The first monitoring module is used to set the lightning rod for protection and obtain first protection information when the first protection mode is determined; determine whether there is an abnormality in the lightning rod according to the first protection information; wherein the first protection information includes: lightning rod installation time, lightning rod image information and lightning rod location information;

[0033] The second monitoring module is used to set the gapless lightning arrester and the lightning rod for protection when the second protection mode is determined, and obtain the second protection information and the first protection information; determine whether there is an abnormality in the lightning rod according to the first protection information, and determine whether there is an abnormality in the gapless lightning arrester according to the second protection information; wherein the second protection information includes: the service life of the gapless lightning arrester, the installation time of the gapless lightning arrester, and the appearance image information of the gapless lightning arrester;

[0034] The third monitoring module is used to set a gapless lightning arrester, a gapped lightning arrester and a lightning rod for protection when the third protection mode is determined to be the third protection mode, and obtain the third protection information, the second protection information and the first protection information; determine whether there is an abnormality in the lightning rod according to the first protection information, determine whether there is an abnormality in the gapless lightning arrester according to the second protection information, and determine whether there is an abnormality in the gapped lightning arrester according to the third protection information; wherein the third protection information includes: the service life of the gapped lightning arrester, the installation time of the gapped lightning arrester and the appearance image information of the gapped lightning arrester.

[0035] The following beneficial effects are achieved by implementing the present invention:

[0036] An embodiment of the present invention provides a monitoring method and device for overvoltage protection equipment. The method first determines the current protection mode based on the device quantity information of the monitoring equipment and the number of times overvoltage occurs in each monitoring equipment within a preset time period, and then collects the protection information of the corresponding overvoltage protection equipment according to the determined protection mode, and then determines whether the corresponding overvoltage protection equipment is abnormal, thereby realizing dynamic monitoring of the overvoltage protection equipment, avoiding redundant monitoring of unused overvoltage protection equipment, and eliminating redundant monitoring situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a flow chart of a monitoring method for overvoltage protection equipment provided by one embodiment of the present invention.

[0038] Figure 2 It is a structural schematic diagram of a monitoring device for overvoltage protection equipment provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figure 1 As shown, an embodiment of the present invention provides a monitoring method for an overvoltage protection device, which at least includes the following steps:

[0041] Step S101: obtaining information on the number of monitoring devices and the number of times overvoltage occurs in each monitoring device within a preset time period.

[0042] Step S102: Generate a mode setting evaluation value according to the device quantity information and each number of times information, and then determine the current protection mode according to the mode setting evaluation value; wherein the protection mode includes: a first protection mode, a second protection mode and a third protection mode.

[0043] Step S103: When the first protection mode is determined, a lightning rod is set for protection and first protection information is obtained; and whether there is an abnormality in the lightning rod is determined based on the first protection information; wherein the first protection information includes: lightning rod installation time, lightning rod image information, and lightning rod location information.

[0044] Step S104: When it is determined to be the second protection mode, set up a gapless lightning arrester and a lightning rod for protection, and obtain second protection information and the first protection information; determine whether there is an abnormality with the lightning rod according to the first protection information, and determine whether there is an abnormality with the gapless lightning arrester according to the second protection information; wherein the second protection information includes: the service life of the gapless lightning arrester, the installation time of the gapless lightning arrester, and the appearance image information of the gapless lightning arrester.

[0045] Step S105: When the third protection mode is determined, a gapless lightning arrester, a gapped lightning arrester and a lightning rod are set for protection, and the third protection information, the second protection information and the first protection information are obtained; whether the lightning rod has an abnormality is determined according to the first protection information, whether the gapless lightning arrester has an abnormality is determined according to the second protection information, and whether the gapped lightning arrester has an abnormality is determined according to the third protection information; wherein the third protection information includes: the service life of the gapped lightning arrester, the installation time of the gapped lightning arrester and the appearance image information of the gapped lightning arrester.

[0046] For step S101, firstly, it is necessary to set up a number of monitoring devices (such as voltage monitors, etc.) to perform overvoltage monitoring, and count the number of overvoltages occurring in each monitoring device within a preset time period, as well as the number of monitoring devices;

[0047] For step S102, the specific generation of the mode setting evaluation value is as follows:

[0048] According to the number of times the monitoring device has overvoltage within the preset time, the total number of times all monitoring devices have overvoltage within the preset time is counted, and the total number is marked as Q1, and the number of monitoring devices is marked as Q2; Q1 is assigned a correction value K1, Q2 a correction value K2, K1+K2=1, K1>K2, and the mode setting evaluation value Qk is obtained through the formula Q1*K1+Q2*K2*α=Qk; where α is the preset coefficient. When Qk is greater than the preset value A1, it is determined that the current mode is the third protection mode. When Qk is between the preset values ​​A1 and A2, it is determined that the current mode is the second protection mode. When Qk is less than A2, it is determined to be the first protection mode, and A2 <A1。

[0049] For step S103, in a preferred embodiment, determining whether there is an abnormality in the lightning rod based on the first protection information includes: calculating the difference between the installation time of the lightning rod and the current time to obtain the installation time of the lightning rod; calculating the angle between the current lightning rod and the horizontal plane based on the lightning rod image information to obtain the first angle; calculating the distance between the current position of the lightning rod and the initial position when the lightning rod was installed based on the position information of the lightning rod to obtain the offset distance; when any abnormal condition of the lightning rod occurs, determining that the lightning rod is abnormal; wherein the abnormal conditions of the lightning rod include: the installation time is greater than the first preset installation time, the first angle is greater than the first preset angle, and the offset distance is greater than the first preset distance.

[0050] In a preferred embodiment, after determining that the lightning rod has an abnormality, it also includes: generating lightning rod maintenance information when any one of the lightning rod abnormal conditions occurs; generating lightning rod replacement information when any two of the lightning rod abnormal conditions occur; generating lightning rod replacement information when the installation time is greater than a second preset installation time, the first angle is greater than a second preset angle, or the offset distance is greater than a second preset distance; wherein the second preset installation time is greater than the first preset installation time, the second preset angle is greater than the first preset angle, and the second preset distance is greater than the first preset distance.

[0051] Specifically, when it is determined to be the first protection mode, it means that the overvoltage situation is relatively mild at this time, and it is sufficient to set up a protective device such as a lightning rod for protection. At the same time, obtain the installation time of the lightning rod and record it as T1; record the current time as T2, then the installation time of the lightning rod Tt = T2-T1; extract the lightning rod image information, identify the lightning rod in the lightning rod image, and calculate the angle information P (that is, the above-mentioned first angle) between the lightning rod and the horizontal plane after identification; then extract the current position of the lightning rod (that is, the position information of the above-mentioned lightning rod), and then calculate the distance between the current position of the lightning rod and the initial position when the lightning rod was installed, and obtain the offset distance and record it as F;

[0052] When the installation time Tt of the lightning rod is greater than the first preset installation time Tone, the offset distance F is greater than the first preset distance B1, and the angle P is greater than the first preset angle C1, when any of these three conditions occurs, it is determined that there is an abnormality in the lightning rod, and lightning rod maintenance information is generated and sent to the user terminal.

[0053] When the installation time Tt of the lightning rod is greater than the first preset installation time Tmax, the offset distance F is greater than the first preset distance B1, and the angle P is greater than the preset angle C1, and any two of these three conditions occur, it is determined that there is an abnormality in the lightning rod, and lightning rod replacement information is generated and sent to the user terminal.

[0054] When the installation time Tt of the lightning rod is greater than the second preset installation time Ttwo, the offset distance F is greater than the second preset distance B2, and the angle P is greater than the second preset angle C2, when any of these three conditions occurs, it is determined that there is an abnormality in the lightning rod, and lightning rod replacement information is generated and sent to the user terminal.

[0055] For step S104, in a preferred embodiment, determining whether there is an abnormality in the gapless lightning arrester based on the second protection information includes: calculating the service life of the gapless lightning arrester based on the installation time of the gapless lightning arrester, and then calculating the difference between the service life of the gapless lightning arrester and the service life of the gapless lightning arrester to obtain the life difference of the gapless lightning arrester; performing a similarity comparison between the appearance image information of the gapless lightning arrester and the initial appearance image of the gapless lightning arrester to determine a first similarity value; when any abnormal condition of the gapless lightning arrester occurs, determining that the gapless lightning arrester is abnormal; wherein the abnormal condition of the gapless lightning arrester includes: the life difference of the gapless lightning arrester is less than the first preset life difference and the first similarity value is less than the first similarity threshold.

[0056] In a preferred embodiment, after determining that the gapless lightning arrester is abnormal, the method further includes: generating gapless lightning arrester replacement information.

[0057] Specifically, the installation time of the gapless lightning arrester is recorded as H1, and the collection time point is marked as H2, then the service life of the gapless lightning arrester Hh = H2-H1; then the difference between the service life of the gapless lightning arrester and the service life of the gapless lightning arrester is calculated to obtain the life difference of the gapless lightning arrester; at the same time, based on the appearance image information of the gapless lightning arrester obtained during the collection, a similarity comparison is performed with the initial appearance image of the gapless lightning arrester set in advance to determine the similarity of the gapless lightning arrester in the two images, and obtain the above-mentioned first similarity value; then when the life difference of the gapless lightning arrester is less than the first preset life difference or the first similarity value is less than the first similarity threshold, it is determined that the gapless lightning arrester is abnormal and the gapless lightning arrester replacement information is generated.

[0058] For step S105, in a preferred embodiment, determining whether the arrester with a gap is abnormal according to the third protection information includes:

[0059] The service life of the arrester with gap is calculated according to the installation time of the arrester with gap, and then the difference between the service life of the arrester with gap and the service life of the arrester with gap is calculated to obtain the life difference of the arrester with gap; the appearance image information of the arrester with gap is compared with the initial appearance image of the arrester with gap for similarity to determine a second similarity value; when any abnormal condition of the arrester with gap occurs, it is determined that the arrester with gap is abnormal; wherein the abnormal condition of the arrester with gap includes: the life difference of the arrester with gap is less than the second preset life difference and the second similarity value is less than the second similarity threshold.

[0060] In a preferred embodiment, after determining that the gapless lightning arrester is abnormal, the method further includes: generating replacement information for the gapped lightning arrester.

[0061] The method for determining an abnormality of a lightning arrester with a gap is similar to the method for determining an abnormality of a lightning arrester without a gap in step S104, and will not be described in detail here.

[0062] In a preferred embodiment, the third protection information also includes: the number of gap arresters; the monitoring method of the overvoltage protection device also includes: when the third protection mode is determined, judging whether the number of monitoring devices and the number of gap arresters are greater than the number threshold, if the number of monitoring devices is greater than the number threshold, but the number of gap arresters is less than the number threshold, generating a prompt message to increase the number of devices with gap arresters. In the present invention, a gap arrester is used as a protective device for overvoltage at the neutral point of the transformer. Through this embodiment, the intelligent addition of the protective device for overvoltage at the neutral point of the transformer can be realized, so as to provide more adequate overvoltage safety protection when different numbers of monitoring devices are connected.

[0063] Based on the above method embodiment, the present invention provides a corresponding device embodiment;

[0064] like Figure 2 As shown, an embodiment of the present invention provides a monitoring device for overvoltage protection equipment, including: a data acquisition module, a protection mode determination module, a first monitoring module, a second monitoring module and a third monitoring module;

[0065] The data acquisition module is used to obtain the number of monitoring devices and the number of times overvoltage occurs in each monitoring device within a preset time period;

[0066] The protection mode determination module is used to generate a mode setting evaluation value according to the device quantity information and each number of times information, and then determine the current protection mode according to the mode setting evaluation value; wherein the protection mode includes: a first protection mode, a second protection mode and a third protection mode;

[0067] The first monitoring module is used to set the lightning rod for protection and obtain first protection information when the first protection mode is determined; determine whether there is an abnormality in the lightning rod according to the first protection information; wherein the first protection information includes: lightning rod installation time, lightning rod image information and lightning rod location information;

[0068] The second monitoring module is used to set the gapless lightning arrester and the lightning rod for protection when the second protection mode is determined, and obtain the second protection information and the first protection information; determine whether there is an abnormality in the lightning rod according to the first protection information, and determine whether there is an abnormality in the gapless lightning arrester according to the second protection information; wherein the second protection information includes: the service life of the gapless lightning arrester, the installation time of the gapless lightning arrester, and the appearance image information of the gapless lightning arrester;

[0069] The third monitoring module is used to set a gapless lightning arrester, a gapped lightning arrester and a lightning rod for protection when the third protection mode is determined to be the third protection mode, and obtain the third protection information, the second protection information and the first protection information; determine whether there is an abnormality in the lightning rod according to the first protection information, determine whether there is an abnormality in the gapless lightning arrester according to the second protection information, and determine whether there is an abnormality in the gapped lightning arrester according to the third protection information; wherein the third protection information includes: the service life of the gapped lightning arrester, the installation time of the gapped lightning arrester and the appearance image information of the gapped lightning arrester.

[0070] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0071] Those skilled in the art can clearly understand that, for the sake of convenience and brevity, the specific working process of the device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0072] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A monitoring method for overvoltage protection equipment, characterized in that: include: Obtaining information on the number of monitoring devices and the number of times overvoltage occurs in each monitoring device within a preset time period; Generate a mode setting evaluation value according to the device quantity information and each number of times information, and then determine the current protection mode according to the mode setting evaluation value; wherein the protection mode includes: a first protection mode, a second protection mode and a third protection mode; calculate the mode setting evaluation value according to the following formula: Q1*K1+Q2*K2*α=Qk; Wherein, Qk is the evaluation value of the mode setting, Q1 is the number of times that overvoltage occurs in each monitoring device within a preset time, Q2 is the number of devices, K1 is the correction value of the number of times information, K2 is the correction value of the number of devices information, and K1+K2=1, K1>K2, α is a preset coefficient; When the first protection mode is determined, a lightning rod is set for protection and first protection information is obtained; and whether the lightning rod is abnormal is determined according to the first protection information; wherein the first protection information includes: lightning rod installation time, lightning rod image information, and lightning rod location information; When the second protection mode is determined, a gapless lightning arrester and a lightning rod are set for protection, and second protection information and the first protection information are obtained; whether the lightning rod is abnormal is determined according to the first protection information, and whether the gapless lightning arrester is abnormal is determined according to the second protection information; wherein the second protection information includes: service life of the gapless lightning arrester, installation time of the gapless lightning arrester, and appearance image information of the gapless lightning arrester; When the third protection mode is determined, a gapless lightning arrester, a gapped lightning arrester and a lightning rod are set for protection, and the third protection information, the second protection information and the first protection information are obtained; whether there is an abnormality in the lightning rod is determined according to the first protection information, whether there is an abnormality in the gapless lightning arrester is determined according to the second protection information, and whether there is an abnormality in the gapped lightning arrester is determined according to the third protection information; wherein the third protection information includes: the service life of the gapped lightning arrester, the installation time of the gapped lightning arrester and the appearance image information of the gapped lightning arrester.

2. The monitoring method for overvoltage protection equipment according to claim 1, characterized in that: Determining whether the lightning rod is abnormal according to the first protection information includes: Calculate the difference between the installation time of the lightning rod and the current time to obtain the installation time of the lightning rod; Calculate the angle between the current lightning rod and the horizontal plane according to the lightning rod image information to obtain a first angle; According to the position information of the lightning rod, the distance between the current position of the lightning rod and the initial position when the lightning rod is installed is calculated to obtain the offset distance; When any abnormal condition of the lightning rod occurs, it is determined that the lightning rod is abnormal; wherein the abnormal condition of the lightning rod includes: the installation time is greater than the first preset installation time, the first angle is greater than the first preset angle, and the offset distance is greater than the first preset distance.

3. The monitoring method for overvoltage protection equipment according to claim 2, characterized in that: After determining that the lightning rod is abnormal, the method further includes: When any abnormal condition of lightning rod occurs, lightning rod maintenance information is generated; When any two abnormal conditions of lightning rod occur, lightning rod replacement information is generated; When the installation time is greater than the second preset installation time, the first angle is greater than the second preset angle, or the offset distance is greater than the second preset distance, lightning rod replacement information is generated; wherein the second preset installation time is greater than the first preset installation time, the second preset angle is greater than the first preset angle, and the second preset distance is greater than the first preset distance.

4. The monitoring method for overvoltage protection equipment according to claim 3, characterized in that: Determining whether there is an abnormality in the gapless lightning arrester according to the second protection information includes: Calculating the service life of the gapless lightning arrester according to the installation time of the gapless lightning arrester, and then calculating the difference between the service life of the gapless lightning arrester and the service life of the gapless lightning arrester to obtain the life difference of the gapless lightning arrester; Performing a similarity comparison between the appearance image information of the gapless lightning arrester and the initial appearance image of the gapless lightning arrester to determine a first similarity value; When any abnormal condition of the gapless lightning arrester occurs, it is determined that the gapless lightning arrester is abnormal; wherein the abnormal condition of the gapless lightning arrester includes: the life difference of the gapless lightning arrester is less than the first preset life difference and the first similarity value is less than the first similarity threshold.

5. The monitoring method for overvoltage protection equipment according to claim 4, characterized in that: After determining that the gapless lightning arrester is abnormal, the method further includes: generating replacement information of the gapless lightning arrester.

6. The monitoring method for overvoltage protection equipment according to claim 5, characterized in that: Determine whether there is an abnormality in the gap arrester according to the third protection information, including: Calculating the service life of the gapped lightning arrester according to the installation time of the gapped lightning arrester, and then calculating the difference between the service life of the gapped lightning arrester and the service life of the gapped lightning arrester to obtain the service life difference of the gapped lightning arrester; Performing a similarity comparison between the appearance image information of the arrester with a gap and the initial appearance image of the arrester with a gap, and determining a second similarity value; When any abnormal condition of the gapped lightning arrester occurs, it is determined that the gapped lightning arrester is abnormal; wherein the abnormal condition of the gapped lightning arrester includes: the life difference of the gapped lightning arrester is less than the second preset life difference and the second similarity value is less than the second similarity threshold.

7. The monitoring method for overvoltage protection equipment according to claim 6, characterized in that: After determining that the gapped lightning arrester is abnormal, the method further includes: generating replacement information of the gapped lightning arrester.

8. The monitoring method for overvoltage protection equipment according to claim 7, characterized in that: The third protection information also includes: the number of gap arresters; The monitoring method for overvoltage protection equipment also includes: when determining to be the third protection mode, judging whether the number of devices of the monitoring equipment and the number of arresters with gaps are greater than a number threshold; if the number of devices of the monitoring equipment is greater than the number threshold, but the number of arresters with gaps is less than the number threshold, generating a prompt message to increase the number of devices with gap arresters.

9. A monitoring device for overvoltage protection equipment, characterized in that: include: A data acquisition module, a protection mode determination module, a first monitoring module, a second monitoring module and a third monitoring module; The data acquisition module is used to obtain the number of monitoring devices and the number of times overvoltage occurs in each monitoring device within a preset time period; The protection mode determination module is used to generate a mode setting evaluation value according to the device quantity information and each number of times information, and then determine the current protection mode according to the mode setting evaluation value; wherein the protection mode includes: a first protection mode, a second protection mode and a third protection mode; the mode setting evaluation value is calculated according to the following formula: Q1*K1+Q2*K2*α=Qk; Wherein, Qk is the evaluation value of the mode setting, Q1 is the number of times that overvoltage occurs in each monitoring device within a preset time, Q2 is the number of devices, K1 is the correction value of the number of times information, K2 is the correction value of the number of devices information, and K1+K2=1, K1>K2, α is a preset coefficient; The first monitoring module is used to set the lightning rod for protection and obtain first protection information when the first protection mode is determined; determine whether there is an abnormality in the lightning rod according to the first protection information; wherein the first protection information includes: lightning rod installation time, lightning rod image information and lightning rod location information; The second monitoring module is used to set the gapless lightning arrester and the lightning rod for protection when the second protection mode is determined, and obtain the second protection information and the first protection information; determine whether there is an abnormality in the lightning rod according to the first protection information, and determine whether there is an abnormality in the gapless lightning arrester according to the second protection information; wherein the second protection information includes: the service life of the gapless lightning arrester, the installation time of the gapless lightning arrester, and the appearance image information of the gapless lightning arrester; The third monitoring module is used to set a gapless lightning arrester, a gapped lightning arrester and a lightning rod for protection when the third protection mode is determined to be the third protection mode, and obtain the third protection information, the second protection information and the first protection information; determine whether there is an abnormality in the lightning rod according to the first protection information, determine whether there is an abnormality in the gapless lightning arrester according to the second protection information, and determine whether there is an abnormality in the gapped lightning arrester according to the third protection information; wherein the third protection information includes: the service life of the gapped lightning arrester, the installation time of the gapped lightning arrester and the appearance image information of the gapped lightning arrester.

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