Method, device and system for monitoring wiring status of PT protection device

Abstract

The invention discloses a method, a device and a system for monitoring the wiring state of a PT protection device. First, the inclination of a PT cabinet and a vertical plane, the collision impact force value of the PT cabinet, the spatial dimension of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet are obtained; the difference between the inclination of the PT cabinet and the vertical plane and a preset inclination is calculated to obtain a first inclination difference; the difference between the collision impact force value of the PT cabinet and a preset impact force value is calculated to obtain a first impact force difference; the difference between the spatial dimension of the PT cabinet and a preset spatial dimension is calculated to obtain a first spatial dimension difference; the difference between the vibration amplitude of the PT cabinet and a preset vibration amplitude is calculated to obtain a first vibration amplitude difference; the difference between the vibration frequency of the PT cabinet and a preset frequency is calculated to obtain a first frequency difference; and the risk degree of abnormal wiring state of the PT protection device is determined according to the first inclination difference, the first impact force difference, the first spatial dimension difference, the first vibration amplitude difference and the first frequency difference.

Description

Technical Field

[0001] The present invention relates to the technical field of voltage transformer protection devices, and in particular to a method, device and system for monitoring the wiring status of a PT protection device. Background Art

[0002] A voltage transformer (PT) is a high-voltage device that converts high voltage in the power grid into low voltage for monitoring and measurement. It is a typical device in the power system whose impact value is greater than the value of the device itself, so safe operation is particularly important.

[0003] The prior art generally adopts a control indicator set in a PT cabinet to protect the voltage transformer, and the control indicator in the PT cabinet controls and drives the PT protection device in the PT cabinet to protect the voltage sensor. However, the wiring state of the PT protection device in the PT cabinet is prone to risks when the PT cabinet is disturbed by external forces, thereby causing the PT protection device to be unable to protect the voltage transformer in time when needed. The prior art lacks detection of whether there is a risk in the wiring state of the PT protection device, and is unable to monitor the wiring state of the PT protection device. Summary of the invention

[0004] The embodiment of the present invention provides a method, device and system for monitoring the connection status of a PT protection device, which can realize the monitoring of the connection status of the PT protection device.

[0005] An embodiment of the present invention provides a method for monitoring the wiring status of a PT protection device, comprising: obtaining detection data of a PT cabinet where the PT protection device is located; wherein the detection data includes: an inclination of the PT cabinet with respect to a vertical plane, a collision impact force value of the PT cabinet, a spatial dimension of the PT cabinet, a vibration amplitude of the PT cabinet, and a vibration frequency of the PT cabinet;

[0006] Calculate the difference between the inclination of the PT cabinet and the vertical plane and the preset inclination to obtain a first inclination difference; calculate the difference between the collision impact force value of the PT cabinet and the preset impact force value to obtain a first impact force difference; calculate the difference between the space size of the PT cabinet and the preset space size to obtain a first space size difference; calculate the difference between the vibration amplitude of the PT cabinet and the preset vibration amplitude to obtain a first vibration amplitude difference; calculate the difference between the vibration frequency of the PT cabinet and the preset frequency to obtain a first frequency difference;

[0007] Comparing the first inclination difference with a preset inclination threshold, comparing the first impact force difference with a preset impact force threshold, comparing the first spatial size difference with a preset size threshold, comparing the first vibration amplitude difference with a preset amplitude threshold, and comparing the first frequency difference with a preset frequency threshold;

[0008] The risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet is determined based on the comparison results.

[0009] Furthermore, the method further includes: when the PT cabinet is not tilted, establishing a circle on a horizontal plane where the center point of the PT cabinet is located with the center point of the PT cabinet as the center of the circle; and dividing the established circle into a plurality of sector-shaped areas;

[0010] The tilt direction of the PT cabinet is detected, and if the PT cabinet is tilted along a first fan-shaped area, the preset tilt is set to a first value; wherein the first fan-shaped area is: a fan-shaped area opposite to the fan-shaped area where the external wiring port of the PT cabinet is located;

[0011] If the PT cabinet is tilted along the second sector area or the third sector area, the preset inclination is set to a second value; wherein the second value is 1.5 times the first value; the second sector area and the third sector area are two sector areas adjacent to the first sector area;

[0012] If the PT cabinet is tilted along other fan-shaped areas except the first fan-shaped area, the second fan-shaped area and the third fan-shaped area, the preset inclination is set to a third value; wherein the third value is twice the first value.

[0013] Furthermore, the risk level of the wiring state between the PT protection device and the control indicator in the PT cabinet is determined according to each comparison result, including:

[0014] When any abnormal wiring state condition occurs, the risk level is determined to be level one; wherein the abnormal wiring state condition includes: the first inclination difference is greater than a preset inclination threshold, the first impact force difference is greater than a preset impact force threshold, the first space size difference is greater than a preset size threshold, the first vibration amplitude difference is greater than a preset amplitude threshold, and the first frequency difference is greater than a preset frequency threshold;

[0015] When any two wiring status abnormal conditions occur, the risk level is determined to be level 2;

[0016] When any three wiring status abnormal conditions occur, the risk level is determined to be level three;

[0017] When any four wiring status abnormal conditions occur, the risk level is determined to be level four;

[0018] When any five wiring status abnormal conditions occur, the risk level is determined to be level five.

[0019] Furthermore, after determining the risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet, it also includes:

[0020] Based on the determined risk level, text prompt information and corresponding colors are generated for risk warning.

[0021] Based on the above method embodiment, the present invention provides a corresponding device embodiment;

[0022] An embodiment of the present invention provides a monitoring device for the wiring status of a PT protection device, comprising: a data acquisition module, a difference calculation module, a comparison module and a risk determination module;

[0023] The data acquisition module is used to acquire the detection data of the PT cabinet where the PT protection device is located; wherein the detection data includes: the inclination of the PT cabinet and the vertical plane, the collision impact force value of the PT cabinet, the space size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet;

[0024] The difference calculation module is used to calculate the difference between the inclination of the PT cabinet and the vertical plane and the preset inclination to obtain a first inclination difference; calculate the difference between the collision impact force value of the PT cabinet and the preset impact force value to obtain a first impact force difference; calculate the difference between the space size of the PT cabinet and the preset space size to obtain a first space size difference; calculate the difference between the vibration amplitude of the PT cabinet and the preset vibration amplitude to obtain a first vibration amplitude difference; calculate the difference between the vibration frequency of the PT cabinet and the preset frequency to obtain a first frequency difference;

[0025] The comparison module is used to compare the first inclination difference with a preset inclination threshold, compare the first impact force difference with a preset impact force threshold, compare the first spatial size difference with a preset size threshold, compare the first vibration amplitude difference with a preset amplitude threshold, and compare the first frequency difference with a preset frequency threshold;

[0026] The risk determination module is used to determine the risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet according to each comparison result.

[0027] Furthermore, it also includes: a preset inclination determination module; the preset inclination determination module is used to establish a circle on the horizontal plane where the center point of the PT cabinet is located with the center point of the PT cabinet as the center of the circle when the PT cabinet is not tilted; and divide the established circle into a plurality of sector-shaped areas;

[0028] The tilt direction of the PT cabinet is detected, and if the PT cabinet is tilted along a first fan-shaped area, the preset tilt is set to a first value; wherein the first fan-shaped area is: a fan-shaped area opposite to the fan-shaped area where the external wiring port of the PT cabinet is located;

[0029] If the PT cabinet is tilted along the second sector area or the third sector area, the preset inclination is set to a second value; wherein the second value is 1.5 times the first value; the second sector area and the third sector area are two sector areas adjacent to the first sector area;

[0030] If the PT cabinet is tilted along other fan-shaped areas except the first fan-shaped area, the second fan-shaped area and the third fan-shaped area, the preset inclination is set to a third value; wherein the third value is twice the first value.

[0031] Furthermore, the risk determination module determines the risk level of the wiring state between the PT protection device and the control indicator in the PT cabinet according to each comparison result, including:

[0032] When any abnormal wiring state condition occurs, the risk level is determined to be level one; wherein the abnormal wiring state condition includes: the first inclination difference is greater than a preset inclination threshold, the first impact force difference is greater than a preset impact force threshold, the first space size difference is greater than a preset size threshold, the first vibration amplitude difference is greater than a preset amplitude threshold, and the first frequency difference is greater than a preset frequency threshold;

[0033] When any two wiring status abnormal conditions occur, the risk level is determined to be level 2;

[0034] When any three wiring status abnormal conditions occur, the risk level is determined to be level three;

[0035] When any four wiring status abnormal conditions occur, the risk level is determined to be level four;

[0036] When any five wiring status abnormal conditions occur, the risk level is determined to be level five.

[0037] Furthermore, it also includes: an early warning module; the early warning module is used to generate text prompt information and corresponding colors for risk warning according to the determined risk level.

[0038] Based on the above device item embodiment, the present invention provides a corresponding system item embodiment;

[0039] An embodiment of the present invention provides a monitoring system for the wiring status of a PT protection device, comprising: a tilt sensor, a force sensor, a laser vibrometer, and a monitoring device for the wiring status of a PT protection device according to any one of the present inventions;

[0040] The inclination sensor is used to detect the inclination of the PT cabinet, generate the inclination of the PT cabinet and the vertical plane, and transmit the inclination of the PT cabinet and the vertical plane to the monitoring device of the wiring status of the PT protection device;

[0041] The force sensor is used to detect the collision impact force of the PT cabinet, generate the collision impact force value of the PT cabinet, and transmit the collision impact force value of the PT cabinet to the monitoring device of the wiring status of the PT protection device;

[0042] The laser vibrometer is used to detect the internal structure, vibration amplitude and vibration frequency of the PT cabinet, generate the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet, and transmit the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet to the monitoring device of the wiring status of the PT protection device.

[0043] The following beneficial effects are achieved by implementing the embodiments of the present invention:

[0044] The embodiment of the present invention provides a method, device and system for monitoring the wiring status of a PT protection device. The method first obtains the inclination of a PT cabinet and a vertical plane, the collision impact force value of the PT cabinet, the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet; then calculates the difference between the inclination of the PT cabinet and the vertical plane and a preset inclination to obtain a first inclination difference; calculates the difference between the collision impact force value of the PT cabinet and a preset impact force value to obtain a first impact force difference; calculates the difference between the spatial size of the PT cabinet and the preset spatial size to obtain a first spatial size difference; calculates the difference between the vibration amplitude of the PT cabinet and the preset vibration amplitude to obtain a first vibration amplitude difference; calculates the difference between the vibration frequency of the PT cabinet and the preset frequency to obtain a first frequency difference; finally, determines the risk degree of abnormal wiring status of the PT protection device according to the first inclination difference, the first impact force difference, the first spatial size difference, the first vibration amplitude difference and the first frequency difference, so as to realize monitoring of the wiring status of the PT protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 The present invention is a flowchart of a method for monitoring the wiring status of a PT protection device provided by an embodiment of the present invention.

[0046] Figure 2 It is a schematic diagram of partitioning of a sector-shaped area provided by an embodiment of the present invention.

[0047] Figure 3 It is a structural schematic diagram of a monitoring device for the wiring status of a PT protection device provided by an embodiment of the present invention.

[0048] Figure 4 The present invention is a schematic diagram of a system for monitoring the wiring status of a PT protection device provided in accordance with an embodiment of the present invention. DETAILED DESCRIPTION

[0049] 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.

[0050] like Figure 1 As shown, an embodiment of the present invention provides a method for monitoring the wiring status of a PT protection device, which at least includes the following steps:

[0051] Step S101: Acquire detection data of the PT cabinet where the PT protection device is located; wherein the detection data includes: the inclination of the PT cabinet and the vertical plane, the collision impact force value of the PT cabinet, the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet.

[0052] Step S102: Calculate the difference between the inclination of the PT cabinet and the vertical plane and the preset inclination to obtain a first inclination difference; calculate the difference between the collision impact force value of the PT cabinet and the preset impact force value to obtain a first impact force difference; calculate the difference between the space size of the PT cabinet and the preset space size to obtain a first space size difference; calculate the difference between the vibration amplitude of the PT cabinet and the preset vibration amplitude to obtain a first vibration amplitude difference; calculate the difference between the vibration frequency of the PT cabinet and the preset frequency to obtain a first frequency difference.

[0053] Step S103: compare the first inclination difference with the preset inclination threshold, compare the first impact force difference with the preset impact force threshold, compare the first spatial size difference with the preset size threshold, compare the first vibration amplitude difference with the preset amplitude threshold, and compare the first frequency difference with the preset frequency threshold.

[0054] Step S104: Determine the risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet according to each comparison result.

[0055] For step S101, specifically, Figure 4As shown, in the present invention, the PT cabinet is provided with a PT protection device, a control indicator, an inclination sensor, a force sensor, a laser vibrometer, and a monitoring device for the wiring status of the PT protection device. The PT protection device is installed in the primary chamber of the PT cabinet to perform protection of the electromagnetic mutual inductor. The control indicator is installed in the secondary chamber of the PT cabinet to control the driving of the PT protection device and provide fault indication and maintenance test at the same time. The inclination sensor is used to detect the inclination of the PT cabinet and the vertical plane and transmit the inclination information (i.e. the inclination of the above-mentioned PT cabinet and the vertical plane) to the monitoring device for the wiring status of the PT protection device. The force sensor module is used to detect the force value information (i.e. the collision impact force value of the above-mentioned PT cabinet) when the PT cabinet is collided around and transmit it to the monitoring device for the wiring status of the PT protection device. The optical vibrometer is used to measure the internal structural information of the PT cabinet (including: the spatial dimensions of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet), and transmit it to the monitoring device for the wiring status of the PT protection device. The monitoring device for the wiring status of the PT protection device analyzes whether there is a risk in the wiring status of the PT protection device and the control indicator in the PT cabinet based on the acquired inclination of the PT cabinet with the vertical plane, the collision impact force value of the PT cabinet, the spatial dimensions of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet, evaluates and grades the risks, and issues corresponding warnings based on the evaluation and grading results.

[0056] Preferably, the PT protection device body specifically includes: a detuning resistor R and an intelligent switch K, and the detuning resistor R and the intelligent switch K are connected in parallel and grounded at the neutral point of the PT. When the system is operating normally, the closing of the intelligent switch K is equivalent to the direct grounding of the neutral point of the PT, which completely suppresses the voltage offset of the measurement opening of the system and does not affect the measurement and protection of the system. When the neutral point displacement voltage exceeds the limit, the intelligent switch K automatically opens and puts the detuning resistor R into operation, effectively suppressing the impact surge current. When the zero-sequence voltage drops or disappears, the intelligent switch K delays and automatically closes, and the system returns to normal. During normal operation, the detuning resistor R does not work, completely eliminating the problem of its own fault. Preferably, the high-voltage end of the PT protection device is connected to the neutral point of the PT primary side, and the grounding terminal PE of the PT protection device is connected to the grounding bar. The maintenance steps of the PT protection device are: cut off the power supply of the primary and secondary rooms of the PT cabinet, and use the resistance range of the multimeter to measure the resistance value between the high-voltage end and the grounding end to be less than 2Ω, and then connect the test port of the PTK protection device body to 110VDC, and use the resistance range of the multimeter to measure the resistance between the high-voltage end and the grounding end. The resistance value is between 50 and 55KΩ, which is qualified, otherwise it is unqualified.

[0057] Preferably, the control indicator terminals 220VL and 220VN are connected to the L and N terminals of the AC 220V, respectively, and the control indicator terminals IN and IN* are connected to the PT zero-sequence voltage secondary output terminals 3U0 and 3U0*, respectively, and the control indicator terminals OUT+ and OUT- are connected to the terminals D1 and D2 of the PT protection device, respectively. The control indicator is provided with a "run" indicator light and a "fault" indicator light, wherein the "run" indicator light is always on during normal operation, and when the PTK protection device body is abnormally driven, the "fault" and "run" indicator lights are on at the same time, please check whether the drive fuse in the control indicator is blown.

[0058] Schematically, the inclination of the PT cabinet to the vertical plane is marked as W1, the collision impact force value of the PT cabinet is marked as L1, the spatial size of the PT cabinet is recorded as ZX1, the vibration amplitude of the PT cabinet is recorded as ZY1, and the vibration frequency of the PT cabinet is recorded as ZZ1.

[0059] For step S102, in a preferred embodiment of the present invention, the above-mentioned preset inclination, preset impact force value, preset space size, preset vibration amplitude and preset frequency are all preset fixed values. Schematically, the preset inclination is marked as W2, the preset impact force value is marked as L2, the preset space size is marked as ZX2, the preset vibration amplitude is marked as ZY2, and the preset frequency is marked as ZZ2.

[0060] The first inclination difference w can be obtained by the formula W2-W1=w; the first impact force difference l can be obtained by the formula L2-L1=l; the first spatial dimension difference zx of PT can be obtained by the formula ZX2-ZX1=zx, the first vibration amplitude difference zy can be obtained by the formula ZY2-ZY1=zy, and the first frequency difference zz can be obtained by the formula ZZ2-ZZ1=zz;

[0061] In another preferred embodiment of the present invention, the preset inclination is a variable value. In actual situations, when the PT cabinet is tilted in the opposite direction of the external wiring port of the PT cabinet, the wiring at the external wiring port of the PT cabinet is pulled more severely than the internal wiring. In order to avoid the wiring here being pulled and damaged, it is necessary to perform differentiated processing when comparing the preset inclination. This differentiated processing can better analyze the impact of the inclination of the PT cabinet on the wiring status of the PT protection device.

[0062] In a preferred embodiment, the determination of the preset inclination includes: when the PT cabinet is not tilted, taking the center point of the PT cabinet as the center of the circle, establishing a circle on the horizontal plane where the center point of the PT cabinet is located; dividing the established circle into a plurality of fan-shaped areas; detecting the tilt direction of the PT cabinet, if the PT cabinet is tilted along the first fan-shaped area, setting the preset inclination to a first value; wherein the first fan-shaped area is: a fan-shaped area opposite to the fan-shaped area where the external wiring port of the PT cabinet is located; if the PT cabinet is tilted along the second fan-shaped area or the third fan-shaped area, setting the preset inclination to a second value; wherein the second value is 1.5 times the first value; the second fan-shaped area and the third fan-shaped area are two fan-shaped areas adjacent to the first fan-shaped area;

[0063] If the PT cabinet is tilted along other fan-shaped areas except the first fan-shaped area, the second fan-shaped area and the third fan-shaped area, the preset inclination is set to a third value; wherein the third value is twice the first value.

[0064] Specifically, Figure 2 As shown in the figure, a circle is established on the horizontal plane where the center point of the PT cabinet in the initial state is located, marked as Q, and the center of Q is the center point of the PT cabinet in the initial state. Then Q is evenly divided into 8 angle intervals with the center of the circle, and 8 sector areas are obtained, namely Q1-Q8; among them, the angle interval in the opposite direction to the external wiring port of the PT cabinet (that is, the first sector area mentioned above) is marked as Q3, and the two sector areas adjacent to Q3 are Q2 (the second sector area) and Q4 (the third sector area). For the marking of other areas, please refer to the attached Figure 2 .

[0065] When the PT cabinet is tilted along the Q3 region, the specific value of the preset tilt is set to Wk (ie, the first value mentioned above); at this time, the first tilt difference w=Wk-W1.

[0066] When the PT cabinet is tilted along the Q2 and Q4 regions, the specific value of the preset tilt is set to 1.5Wk (ie, the second value mentioned above); at this time, the first tilt difference w=1.5Wk-W1.

[0067] When the PT cabinet is tilted along other areas except Q2, Q3 and Q4, the specific value of the preset tilt is set to 2Wk (ie the third value mentioned above); at this time, the first tilt difference w=2Wk-W1.

[0068] For step S103, the above w is compared with the preset inclination threshold, l is compared with the preset impact force threshold, zx is compared with the preset size threshold, zy is compared with the preset amplitude threshold, and zz is compared with the preset frequency threshold; it should be noted that the specific values ​​of the above preset inclination threshold, preset impact force threshold, preset size threshold, preset amplitude threshold and preset frequency threshold can be adjusted according to actual conditions.

[0069] When w is greater than the preset inclination threshold value, it means that the PT cabinet is tilted more seriously and is prone to pulling the wiring. Otherwise, it means that the PT cabinet is slightly tilted and has little effect on pulling the wiring.

[0070] When l is greater than the preset impact force value, it means that the impact force on the PT cabinet is large and the wiring is easy to be torn. Otherwise, it means that the impact force on the PT cabinet is small and the wiring will not be torn.

[0071] When zx is larger than the preset space size, it means that the PT cabinet structure is severely damaged and cannot provide protection for the wiring. Otherwise, it means that the PT cabinet structure is slightly damaged and can provide protection for the wiring.

[0072] When zy is greater than the preset vibration amplitude, it means that the vibration amplitude of the PT cabinet is large and will pull the internal wiring. Otherwise, it means that the vibration amplitude of the PT cabinet is small and will not pull the internal wiring.

[0073] When zz is greater than the preset frequency, it means that the vibration frequency of the PT cabinet is large and will cause the wiring to loosen. Otherwise, it means that the vibration frequency of the PT cabinet is small and will not cause the wiring to loosen.

[0074] For step S104, in a preferred embodiment, determining the risk level of the connection state between the PT protection device and the control indicator in the PT cabinet according to each comparison result includes:

[0075] When any abnormal wiring state condition occurs, the risk level is determined to be level one; wherein the abnormal wiring state condition includes: the first inclination difference is greater than a preset inclination threshold, the first impact force difference is greater than a preset impact force threshold, the first space size difference is greater than a preset size threshold, the first vibration amplitude difference is greater than a preset amplitude threshold, and the first frequency difference is greater than a preset frequency threshold;

[0076] When any two wiring status abnormal conditions occur, the risk level is determined to be level 2;

[0077] When any three wiring status abnormal conditions occur, the risk level is determined to be level three;

[0078] When any four wiring status abnormal conditions occur, the risk level is determined to be level four;

[0079] When any five wiring status abnormal conditions occur, the risk level is determined to be level five.

[0080] After determining the risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet, it also includes: generating text prompt information and corresponding colors for risk prompting according to the determined risk level.

[0081] Specifically, when it is a level five risk, a flashing red light is generated and the word "five" is displayed; when it is a level four risk, a flashing red light is generated and the word "four" is displayed; when it is a level three risk, a flashing red light is generated and the word "three" is displayed; when it is a level two risk, a flashing yellow light is generated and the word "two" is displayed; when it is a level one risk, a flashing yellow light is generated and the word "one" is displayed.

[0082] Based on the above method embodiment, the present invention provides a corresponding device embodiment:

[0083] like Figure 3 As shown, an embodiment of the present invention provides a monitoring device for the wiring status of a PT protection device, comprising: a data acquisition module, a difference calculation module, a comparison module and a risk determination module;

[0084] The data acquisition module is used to acquire the detection data of the PT cabinet where the PT protection device is located; wherein the detection data includes: the inclination of the PT cabinet and the vertical plane, the collision impact force value of the PT cabinet, the space size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet;

[0085] The difference calculation module is used to calculate the difference between the inclination of the PT cabinet and the vertical plane and the preset inclination to obtain a first inclination difference; calculate the difference between the collision impact force value of the PT cabinet and the preset impact force value to obtain a first impact force difference; calculate the difference between the space size of the PT cabinet and the preset space size to obtain a first space size difference; calculate the difference between the vibration amplitude of the PT cabinet and the preset vibration amplitude to obtain a first vibration amplitude difference; calculate the difference between the vibration frequency of the PT cabinet and the preset frequency to obtain a first frequency difference;

[0086] The comparison module is used to compare the first inclination difference with a preset inclination threshold, compare the first impact force difference with a preset impact force threshold, compare the first spatial size difference with a preset size threshold, compare the first vibration amplitude difference with a preset amplitude threshold, and compare the first frequency difference with a preset frequency threshold;

[0087] The risk determination module is used to determine the risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet according to each comparison result.

[0088] In a preferred embodiment, it further comprises: a preset inclination determination module;

[0089] The preset inclination determination module is used to establish a circle on the horizontal plane where the center point of the PT cabinet is located with the center point of the PT cabinet as the center of the circle when the PT cabinet is not inclined; and divide the established circle into a number of sector-shaped areas;

[0090] The tilt direction of the PT cabinet is detected, and if the PT cabinet is tilted along a first fan-shaped area, the preset tilt is set to a first value; wherein the first fan-shaped area is: a fan-shaped area opposite to the fan-shaped area where the external wiring port of the PT cabinet is located;

[0091] If the PT cabinet is tilted along the second sector area or the third sector area, the preset inclination is set to a second value; wherein the second value is 1.5 times the first value; the second sector area and the third sector area are two sector areas adjacent to the first sector area;

[0092] If the PT cabinet is tilted along other fan-shaped areas except the first fan-shaped area, the second fan-shaped area and the third fan-shaped area, the preset inclination is set to a third value; wherein the third value is twice the first value.

[0093] In a preferred embodiment, the risk determination module determines the risk level of the connection state between the PT protection device and the control indicator in the PT cabinet according to each comparison result, including:

[0094] When any abnormal wiring state condition occurs, the risk level is determined to be level one; wherein the abnormal wiring state condition includes: the first inclination difference is greater than a preset inclination threshold, the first impact force difference is greater than a preset impact force threshold, the first space size difference is greater than a preset size threshold, the first vibration amplitude difference is greater than a preset amplitude threshold, and the first frequency difference is greater than a preset frequency threshold;

[0095] When any two abnormal wiring status conditions occur, the risk level is determined to be level two; when any three abnormal wiring status conditions occur, the risk level is determined to be level three; when any four abnormal wiring status conditions occur, the risk level is determined to be level four; when any five abnormal wiring status conditions occur, the risk level is determined to be level five.

[0096] In a preferred embodiment, it also includes: an early warning module; the early warning module is used to generate text prompt information and corresponding colors for risk warning according to the determined risk level.

[0097] 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.

[0098] 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.

[0099] Based on the above device item embodiment, the present invention provides a corresponding system item embodiment;

[0100] like Figure 4 As shown, an embodiment of the present invention provides a monitoring system for the wiring status of a PT protection device, comprising: an inclination sensor, a force sensor, a laser vibrometer, and a monitoring device for the wiring status of a PT protection device according to any one of the present inventions;

[0101] The inclination sensor is used to detect the inclination of the PT cabinet, generate the inclination of the PT cabinet and the vertical plane, and transmit the inclination of the PT cabinet and the vertical plane to the monitoring device of the wiring status of the PT protection device;

[0102] The force sensor is used to detect the collision impact force of the PT cabinet, generate the collision impact force value of the PT cabinet, and transmit the collision impact force value of the PT cabinet to the monitoring device of the wiring status of the PT protection device;

[0103] The laser vibrometer is used to detect the internal structure, vibration amplitude and vibration frequency of the PT cabinet, generate the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet, and transmit the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet to the monitoring device of the wiring status of the PT protection device.

[0104] 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 method for monitoring the wiring status of a PT protection device, characterized in that: include: Acquire detection data of the PT cabinet where the PT protection device is located; wherein the detection data includes: the inclination of the PT cabinet and the vertical plane, the collision impact force value of the PT cabinet, the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet, and the vibration frequency of the PT cabinet; Calculate the difference between the inclination of the PT cabinet and the vertical plane and the preset inclination to obtain a first inclination difference; calculate the difference between the collision impact force value of the PT cabinet and the preset impact force value to obtain a first impact force difference; calculate the difference between the space size of the PT cabinet and the preset space size to obtain a first space size difference; calculate the difference between the vibration amplitude of the PT cabinet and the preset vibration amplitude to obtain a first vibration amplitude difference; calculate the difference between the vibration frequency of the PT cabinet and the preset frequency to obtain a first frequency difference; wherein the determination of the preset inclination includes: When the PT cabinet is not tilted, a circle is established on the horizontal plane where the center point of the PT cabinet is located, with the center point of the PT cabinet as the center of the circle; the established circle is evenly divided into several sector-shaped areas; The tilt direction of the PT cabinet is detected, and if the PT cabinet is tilted along a first fan-shaped area, the preset tilt is set to a first value; wherein the first fan-shaped area is: a fan-shaped area opposite to the fan-shaped area where the external wiring port of the PT cabinet is located; If the PT cabinet is tilted along the second sector area or the third sector area, the preset inclination is set to a second value; wherein the second value is 1.5 times the first value; the second sector area and the third sector area are two sector areas adjacent to the first sector area; If the PT cabinet is tilted along other fan-shaped areas except the first fan-shaped area, the second fan-shaped area and the third fan-shaped area, the preset inclination is set to a third value; wherein the third value is twice the first value; Comparing the first inclination difference with a preset inclination threshold, comparing the first impact force difference with a preset impact force threshold, comparing the first spatial size difference with a preset size threshold, comparing the first vibration amplitude difference with a preset amplitude threshold, and comparing the first frequency difference with a preset frequency threshold; The risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet is determined based on the comparison results.

2. The method for monitoring the connection status of a PT protection device according to claim 1, characterized in that: Determine the risk level of the wiring status between the PT protection device and the control indicator in the PT cabinet based on the comparison results, including: When any abnormal wiring state condition occurs, the risk level is determined to be level one; wherein the abnormal wiring state condition includes: the first inclination difference is greater than a preset inclination threshold, the first impact force difference is greater than a preset impact force threshold, the first space size difference is greater than a preset size threshold, the first vibration amplitude difference is greater than a preset amplitude threshold, and the first frequency difference is greater than a preset frequency threshold; When any two wiring status abnormal conditions occur, the risk level is determined to be level 2; When any three wiring status abnormal conditions occur, the risk level is determined to be level three; When any four wiring status abnormal conditions occur, the risk level is determined to be level four; When any five wiring status abnormal conditions occur, the risk level is determined to be level five.

3. The method for monitoring the connection status of a PT protection device according to claim 2, characterized in that: After determining the risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet, it also includes: Based on the determined risk level, text prompt information and corresponding colors are generated for risk warning.

4. A monitoring device for the wiring status of a PT protection device, characterized in that: include: Data acquisition module, difference calculation module, comparison module, risk determination module and preset inclination determination module; The data acquisition module is used to acquire the detection data of the PT cabinet where the PT protection device is located; wherein the detection data includes: the inclination of the PT cabinet and the vertical plane, the collision impact force value of the PT cabinet, the space size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet; The difference calculation module is used to calculate the difference between the inclination of the PT cabinet and the vertical plane and the preset inclination to obtain a first inclination difference; calculate the difference between the collision impact force value of the PT cabinet and the preset impact force value to obtain a first impact force difference; calculate the difference between the space size of the PT cabinet and the preset space size to obtain a first space size difference; calculate the difference between the vibration amplitude of the PT cabinet and the preset vibration amplitude to obtain a first vibration amplitude difference; calculate the difference between the vibration frequency of the PT cabinet and the preset frequency to obtain a first frequency difference; The preset inclination determination module is used to establish a circle on the horizontal plane where the center point of the PT cabinet is located with the center point of the PT cabinet as the center of the circle when the PT cabinet is not inclined; divide the established circle into a number of fan-shaped areas; detect the inclination direction of the PT cabinet, and if the PT cabinet is inclined along the first fan-shaped area, set the preset inclination to a first value; wherein the first fan-shaped area is: a fan-shaped area opposite to the fan-shaped area where the external wiring port of the PT cabinet is located; if the PT cabinet is inclined along the second fan-shaped area or the third fan-shaped area, set the preset inclination to a second value; wherein the second value is 1.5 times the first value; the second fan-shaped area and the third fan-shaped area are two fan-shaped areas adjacent to the first fan-shaped area; if the PT cabinet is inclined along other fan-shaped areas except the first fan-shaped area, the second fan-shaped area and the third fan-shaped area, set the preset inclination to a third value; wherein the third value is twice the first value; The comparison module is used to compare the first inclination difference with a preset inclination threshold, compare the first impact force difference with a preset impact force threshold, compare the first spatial size difference with a preset size threshold, compare the first vibration amplitude difference with a preset amplitude threshold, and compare the first frequency difference with a preset frequency threshold; The risk determination module is used to determine the risk level of abnormal wiring status between the PT protection device and the control indicator in the PT cabinet according to each comparison result.

5. The monitoring device for the wiring status of a PT protection device according to claim 4, characterized in that: The risk determination module determines the risk level of the wiring status between the PT protection device and the control indicator in the PT cabinet according to the comparison results, including: When any abnormal wiring state condition occurs, the risk level is determined to be level one; wherein the abnormal wiring state condition includes: the first inclination difference is greater than a preset inclination threshold, the first impact force difference is greater than a preset impact force threshold, the first space size difference is greater than a preset size threshold, the first vibration amplitude difference is greater than a preset amplitude threshold, and the first frequency difference is greater than a preset frequency threshold; When any two wiring status abnormal conditions occur, the risk level is determined to be level 2; When any three wiring status abnormal conditions occur, the risk level is determined to be level three; When any four wiring status abnormal conditions occur, the risk level is determined to be level four; When any five wiring status abnormal conditions occur, the risk level is determined to be level five.

6. The monitoring device for the wiring status of a PT protection device according to claim 5, characterized in that: Also includes: Early warning module; The early warning module is used to generate text prompt information and corresponding colors for risk warning according to the determined risk level.

7. A monitoring system for the wiring status of a PT protection device, characterized in that: include: A tilt sensor, a force sensor, a laser vibrometer, and a monitoring device for the wiring status of a PT protection device as claimed in any one of claims 4 to 6; The inclination sensor is used to detect the inclination of the PT cabinet, generate the inclination of the PT cabinet and the vertical plane, and transmit the inclination of the PT cabinet and the vertical plane to the monitoring device of the wiring status of the PT protection device; The force sensor is used to detect the collision impact force of the PT cabinet, generate the collision impact force value of the PT cabinet, and transmit the collision impact force value of the PT cabinet to the monitoring device of the wiring status of the PT protection device; The laser vibrometer is used to detect the internal structure, vibration amplitude and vibration frequency of the PT cabinet, generate the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet, and transmit the spatial size of the PT cabinet, the vibration amplitude of the PT cabinet and the vibration frequency of the PT cabinet to the monitoring device of the wiring status of the PT protection device.

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