Monitoring method and system for outdoor cabinet door of converter station

Abstract

The invention provides a monitoring method and system for an outdoor cabinet door of a converter station. The method comprises the following steps: acquiring first sensor data through a first sensor mounted on a door frame of a cabinet door; second sensor data are collected through a second sensor installed at the corresponding position of the cabinet door and the door frame; respectively preprocessing the first sensor data and the second sensor data to obtain first preprocessed data and second preprocessed data; comprehensively judging the opening and closing state of a cabinet door according to the first preprocessed data, the second preprocessed data and a preset switching circuit to obtain a comprehensive judgment result; and obtaining alarm information according to the comprehensive judgment result. According to the invention, the monitoring cost of the outdoor cabinet door of the converter station can be reduced, and the monitoring efficiency and timeliness are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cabinet door monitoring, and further relates to a monitoring method and system for outdoor cabinet doors of a converter station. BACKGROUND

[0002] A converter station refers to a station site established in a high-voltage direct-current power transmission system to complete the conversion of alternating current into direct current or direct current into alternating current and to meet the requirements of a power system for safety, stability and power quality. Personnel in the station need to regularly patrol equipment control cabinets, voltage and current transformer terminal boxes, relay rooms and valve hall doors, and the cabinet doors and the doors must be kept closed to prevent rainwater, sand, small animals and other external factors from entering and accidentally damaging the equipment and wiring in the cabinet and the indoor equipment, resulting in tripping, direct current locking and other malignant events caused by device abnormal events and protection abnormal actions. However, manual inspection has the following disadvantages: manual inspection has a time interval, and it is difficult to timely detect that the cabinet door is not closed or is abnormally opened; manual inspection records are often not accurate and detailed, and are inconvenient to query; there are many devices in the converter station, and the number of cabinet doors is also relatively large, so manual inspection requires a large number of manpower, and needs to be carried out regularly, increasing the labor cost of the enterprise. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a monitoring method and system for outdoor cabinet doors of a converter station to reduce the monitoring cost of the outdoor cabinet doors of the converter station and improve the monitoring efficiency and timeliness.

[0004] To solve the above technical problems, the technical solutions of the present application are as follows: In a first aspect, the present application provides a monitoring method for outdoor cabinet doors of a converter station, comprising: collecting first sensor data by a first sensor installed on a door frame of the cabinet door; collecting second sensor data by a second sensor installed at a corresponding position of the cabinet door and the door frame; preprocessing the first sensor data and the second sensor data respectively to obtain first preprocessing data and second preprocessing data; comprehensively judging the opening and closing state of the cabinet door according to the first preprocessing data, the second preprocessing data and a preset switch circuit to obtain a comprehensive judgment result; obtaining alarm information according to the comprehensive judgment result.

[0005] Optionally, preprocessing the first sensor data to obtain first preprocessing data comprises: performing de-bouncing processing on the first sensor data to obtain de-bouncing data; performing filtering processing on the de-bouncing data to obtain the first preprocessing data.

[0006] Optionally, the second sensor data is preprocessed to obtain second preprocessed data, including: According to The second sensor data is smoothed to obtain second preprocessed data; Wherein, is the sampling value of the i-th sampling time in the second preprocessed data; n is a sliding window, and the value is 3 or 5; is the sampling value of the i-th sampling time in the second sensor data.

[0007] Optionally, according to the first preprocessed data, the second preprocessed data and a preset switch circuit, the opening and closing state of the cabinet door is comprehensively judged to obtain a comprehensive judgment result, including: According to the first preprocessed data, the opening and closing state of the cabinet door is first judged to obtain a first judgment result; According to the second preprocessed data, the opening and closing state of the cabinet door is second judged to obtain a second judgment result; According to the preset switch circuit, the opening and closing state of the cabinet door is third judged to obtain a third judgment result; According to the first judgment result, the second judgment result and the third judgment result, the opening and closing state of the cabinet door is comprehensively judged to obtain a comprehensive judgment result.

[0008] Optionally, according to the first preprocessed data, the opening and closing state of the cabinet door is first judged to obtain a first judgment result, including: A preset first standard value is obtained; According to the preset first standard value and the first preprocessed data, the opening and closing state of the cabinet door is first judged to obtain a first judgment result.

[0009] Optionally, according to the second preprocessed data, the opening and closing state of the cabinet door is second judged to obtain a second judgment result, including: A preset second standard value and a preset reference value are obtained; According to , a difference value is obtained; According to the difference value and the preset second standard value, the opening and closing state of the cabinet door is second judged to obtain a second judgment result; Wherein, is the difference value, is the preset reference value, is the sampling value of the i-th sampling time in the second preprocessed data.

[0010] Optionally, according to the preset switch circuit, the opening and closing state of the cabinet door is third judged to obtain a third judgment result, including: Collect first signal data through preset switch circuit installed on the door frame of the cabinet door and connected with the cabinet door in contact; Make third judgment on the opening and closing state of the cabinet door according to the first signal data, and obtain third judgment result.

[0011] In a second aspect of the present application, a monitoring device for the cabinet door of the converter station outdoor is provided, comprising: The first acquisition module is configured to collect first sensor data through the first sensor installed on the door frame of the cabinet door. The second acquisition module is configured to collect second sensor data through the second sensor installed on the corresponding position of the cabinet door and the door frame. The preprocessing module is configured to preprocess the first sensor data and the second sensor data respectively to obtain first preprocessing data and second preprocessing data. The judgment module is configured to make comprehensive judgment on the opening and closing state of the cabinet door according to the first preprocessing data, the second preprocessing data and the preset switch circuit to obtain comprehensive judgment result. The alarm module is configured to obtain alarm information according to the comprehensive judgment result.

[0012] In a third aspect of the present application, a computing device is provided, comprising a processor and a memory storing a computer program, wherein the computer program is executed by the processor to perform the method according to the first aspect.

[0013] In a fourth aspect of the present application, a computer readable storage medium is provided, storing instructions, wherein the instructions are executed on a computer to make the computer perform the method according to the first aspect.

[0014] The above-mentioned scheme of the present application has at least the following beneficial effects: The above-mentioned scheme of the present application collects first sensor data through the first sensor installed on the door frame of the cabinet door, collects second sensor data through the second sensor installed on the corresponding position of the cabinet door and the door frame, then preprocesses the first sensor data and the second sensor data respectively to obtain first preprocessing data and second preprocessing data, then makes comprehensive judgment on the opening and closing state of the cabinet door according to the first preprocessing data, the second preprocessing data and the preset switch circuit to obtain comprehensive judgment result, finally obtains alarm information according to the comprehensive judgment result, which can monitor the opening and closing state of the cabinet door in real time, and automatically alarms when the cabinet door is not closed tightly or not closed, which is beneficial to reduce the monitoring cost of the cabinet door of the converter station outdoor, improve the monitoring efficiency and timeliness. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a flowchart of the monitoring method for the cabinet door of the converter station outdoor in the embodiment of the present application; Figure 2 is a structural schematic diagram of a preset switch circuit in an embodiment of the present application; Figure 3 is a circuit structural schematic diagram of a preset switch circuit in an embodiment of the present application; Figure 4 is a structural schematic diagram of a monitoring device for an outdoor cabinet door of a converter station in an embodiment of the present application.

[0016] Mark explanation: 300-preset switch circuit, 311-mainboard, 312-key. DETAILED DESCRIPTION

[0017] Exemplary embodiments of the present application will be described in greater detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood, and the scope of the present application can be accurately conveyed to those skilled in the art.

[0018] As shown in Figure 1 , an embodiment of the present application proposes a monitoring method for an outdoor cabinet door of a converter station, comprising the following steps: Step 101, collecting first sensor data through a first sensor installed on a cabinet door frame; Step 102, collecting second sensor data through a second sensor installed on a corresponding position of the cabinet door and the door frame; Step 103, respectively preprocessing the first sensor data and the second sensor data to obtain first preprocessed data and second preprocessed data; Step 104, comprehensively judging the opening and closing state of the cabinet door according to the first preprocessed data, the second preprocessed data and a preset switch circuit to obtain a comprehensive judgment result; Step 105, obtaining alarm information according to the comprehensive judgment result.

[0019] The monitoring method for an outdoor cabinet door of a converter station in an embodiment of the present application collects first sensor data through a first sensor installed on a cabinet door frame, collects second sensor data through a second sensor installed on a corresponding position of the cabinet door and the door frame, then respectively preprocesses the first sensor data and the second sensor data to obtain first preprocessed data and second preprocessed data, then comprehensively judges the opening and closing state of the cabinet door according to the first preprocessed data, the second preprocessed data and a preset switch circuit to obtain a comprehensive judgment result, and finally obtains alarm information according to the comprehensive judgment result, which can monitor the opening and closing state of the cabinet door in real time, and automatically alarms when the cabinet door is not tightly closed or not closed, which is conducive to reducing the monitoring cost of the outdoor cabinet door of the converter station, improving the monitoring efficiency and timeliness.

[0020] In an optional embodiment of the present application, step 101 comprises: The first sensor data is collected by a first sensor installed on the top or side of the door frame or the end of the track.

[0021] Specifically, the first sensor can be a travel switch. According to the type of the cabinet door, a suitable travel switch and installation position are selected. When the type of the cabinet door is a flat cabinet door, the corresponding travel switch is a direct-acting travel switch with a roller, and the installation position is the top or side of the door frame. The contact direction of the travel switch is perpendicular to the movement direction of the cabinet door. When the type of the cabinet door is a sliding cabinet door, the corresponding travel switch is a swing lever type travel switch, and the installation position is the end of the track. The contact direction of the travel switch is consistent with the sliding direction of the cabinet door. By installing the travel switch at the limit position that can be triggered when the cabinet door is closed (such as the edge of the door frame), the switch action direction is perpendicular to the movement direction of the cabinet door. This facilitates accurate collection of the state data of the cabinet door (i.e., the first sensor data).

[0022] In an optional embodiment of the present application, step 102 comprises: The second sensor data is collected by a second sensor; the second sensor comprises a transmitter installed on the cabinet door and a receiver installed on the corresponding position of the door frame.

[0023] Specifically, the second sensor can be a light-sensitive sensor. The type of the light-sensitive sensor can be a reflection type sensor. The transmitter is installed on one side that blocks the light path when the cabinet door is closed, and the receiver is installed on the other side. This ensures that the light path is blocked when the cabinet door is closed and unblocked when the cabinet door is opened. The transmitter and the receiver are respectively installed on the fixed brackets on both sides of the cabinet door, ensuring that the light path is perpendicular to the movement direction of the cabinet door. Alternatively, the second sensor can be a reflection type sensor. The transmitter is installed on one side of the cabinet door, and the reflecting plate is installed on the other side. This ensures that the reflected light is blocked when the cabinet door is closed and restored when the cabinet door is opened. The reflection type sensor is installed on one side of the cabinet door, and the reflecting plate is installed on the other side, ensuring that the reflected light path is consistent with the movement direction of the cabinet door. It should be noted that the installation position of the second sensor should avoid direct sunlight or object obstruction to ensure normal operation of the sensor.

[0024] In an optional embodiment of the present application, in step 103, the first sensor data is preprocessed to obtain first preprocessed data, comprising: Step 1031, the first sensor data is de-bounced to obtain de-bounced data. Specifically, the first sensor data may be affected by mechanical vibration, electromagnetic interference or poor contact, causing signal jitter (i.e. temporary false triggering or repeated triggering), affecting data reliability, therefore, the first sensor data is de-bounced to eliminate jitter noise and improve data accuracy, providing a data basis for subsequent accurate determination of whether the cabinet door is open. In specific embodiments, the following methods can be used for de-bouncing: obtaining a preset de-bouncing time window T (such as 50 milliseconds), a counter count and an initialization variable , which is the first stable data in the first sensor data; determining whether the sampling value of the first sensor data at the sampling time t (which can be considered as the current time) is the same as the initialization variable ; If so, the counter count is incremented by 1, otherwise the counter count is 0. When the counter count is greater than or equal to the count value corresponding to the de-bouncing time window T (for example, if T is 50 milliseconds and the sampling frequency is 10 milliseconds, the counter count is 5, which is equal to the de-bouncing time window T), it is considered that the sampling value is stable, and the initialization variable is updated to ; if the counter count is less than the count value corresponding to the de-bouncing time window T, it is considered that the sampling value is jittered, and the initialization variable is kept unchanged. The sampling value is output as valid data after de-bouncing, i.e. de-bounced data.

[0025] In step 1032, the de-bounced data is filtered to obtain first pre-processed data.

[0026] Specifically, in order to further remove noise in the de-bounced data, the following steps can be used to filter the de-bounced data: determining a preset window size n, n being an odd number so as to have a center point; sliding a window of length n on the de-bounced data, moving the window by one data point each time; in each window, calculating the median of all data points in the window, the median being the value in the middle after sorting the data points; replacing the data point at the center of the window with the calculated median, thereby obtaining the first pre-processed data.

[0027] In an optional embodiment of the present application, the second sensor data is pre-processed in step 103 to obtain second pre-processed data, comprising: smoothing the second sensor data according to to obtain the second pre-processed data; in, is the sampling value at the i-th sampling moment in the second preprocessed data; n is a sliding window, which takes a value of 3 or 5; is the sampling value at the i-th sampling moment in the second sensor data.

[0028] Specifically, in order to suppress high-frequency noise or instantaneous fluctuations in the second sensor data and retain the overall trend of the second sensor data, the second sensor data is smoothed using the above method to obtain second preprocessed data, thereby reducing instantaneous interference and improving data quality.

[0029] In an optional embodiment of the present invention, step 104 includes: Step 1041: performing a first judgment on the open / closed state of the cabinet door according to the first pre-processed data to obtain a first judgment result; In an optional embodiment of the present invention, step 1041 includes: Step 10411, obtaining a preset first standard value; Specifically, the first preprocessed data is a numerical signal (1 or 0), which can be obtained by obtaining a preset first standard value for subsequent comparison with the first preprocessed data to quickly and accurately determine whether the cabinet door is open. Here, the preset first standard value can be 0 or 1.

[0030] Step 10412: Perform a first judgment on the switch state of the cabinet door according to the preset first standard value and the first preprocessed data to obtain a first judgment result.

[0031] Specifically, when the preset first standard value is 1, when the first preprocessed data is equal to the preset first standard value, the first judgment result is that the cabinet door is open, otherwise, the first judgment result is that the cabinet door is closed; when the preset first standard value is 0, when the first preprocessed data is equal to the preset first standard value, the first judgment result is that the cabinet door is closed, otherwise, the first judgment result is that the cabinet door is open.

[0032] Step 1042: performing a second judgment on the open / closed state of the cabinet door based on the second pre-processed data to obtain a second judgment result; In an optional embodiment of the present invention, step 1042 includes: Step 10421, obtaining a preset second standard value and a preset reference value; Step 10422, according to , get the difference; Step 10423: performing a second judgment on the open / closed state of the cabinet door based on the difference and the preset second standard value to obtain a second judgment result; in, is the difference, is the preset reference value, is the sampling value at the i-th sampling moment in the second preprocessed data.

[0033] Specifically, the preset second standard value serves as the basis for determining whether the cabinet door is open and can be set to 2.5. The preset baseline value is the baseline sensor data collected by the second sensor when the cabinet door is closed. This value can be used to perform light compensation on the second pre-processed data to prevent the influence of ambient light changes on subsequent judgments, thereby improving the accuracy of the judgment. If the difference is greater than or equal to the preset second standard value, the second judgment result is that the cabinet door is open; otherwise, it is closed.

[0034] Step 1043: performing a third judgment on the switch state of the cabinet door according to the preset switch circuit to obtain a third judgment result; In an optional embodiment of the present invention, step 1043 includes: Step 10431: collecting first signal data through a preset switch circuit 300 installed in the door frame and in contact with the door; Specifically, the preset switch circuit 300 is installed on the door frame and is in contact with the door, and collects the first signal data when the door is opened. Figure 2 As shown, the preset switch circuit 300 includes: a main board 311 having a first pin (i.e., COM pin), a second pin (i.e., NC pin), and a third pin (i.e., NO pin); and a button 312 connected to the main board 311. The button 312 is in contact with the cabinet door. When the cabinet door is in an open state, the button 312 is in a pop-up state, the first pin is electrically connected to the second pin, and outputs a first signal data. Figure 3 As shown, in one specific embodiment, the second pin NC of the preset switch circuit 300 is electrically connected to one end of the first resistor R183, the other end of which is electrically connected to the power supply unit (VBAT). The third pin NO is electrically connected to one end of the second resistor R182, the other end of which is grounded. When the cabinet door is closed, the button 312 of the preset switch circuit 300 is pressed, the COM pin is in the NO position, that is, the first and third pins are connected, and the Detect1 signal (i.e., the first signal) is low.

[0035] Step 10432: Perform a third judgment on the switch status of the cabinet door based on the first signal data to obtain a third judgment result.

[0036] Specifically, since the first signal data is received by the preset switch circuit when the cabinet door is in the open state, when the first signal data is received, it can be judged that the switch state of the cabinet door is open, and the third judgment result is "the cabinet door is open".

[0037] Step 1044, according to the first judgment result, the second judgment result and the third judgment result, the opening and closing state of the cabinet door is comprehensively judged, and a comprehensive judgment result is obtained.

[0038] In an optional embodiment of the present application, step 1044 comprises: Step 10441, when the first judgment result, the second judgment result and the third judgment result are consistent, the first judgment result or the second judgment result or the third judgment result is taken as the comprehensive judgment result. Step 10442, when the first judgment result, the second judgment result and the third judgment result are inconsistent, the cabinet door is in an abnormal state as the comprehensive judgment result.

[0039] Specifically, when the first judgment result, the second judgment result and the third judgment result are consistent, that is, all are "the cabinet door is opened", the first judgment result or the second judgment result or the third judgment result can be taken as the final comprehensive judgment result. When the first judgment result and the third judgment result, or the second judgment result and the third judgment result are inconsistent, it indicates that the cabinet door state has abnormal conditions, and the cabinet door in an abnormal state is taken as the comprehensive judgment result, so as to facilitate subsequent alarm and personnel checking.

[0040] In an optional embodiment of the present application, step 105 comprises: When the comprehensive judgment result is that the cabinet door is opened or the cabinet door is in an abnormal state, alarm information is obtained.

[0041] Specifically, when the comprehensive judgment result is that the cabinet door is opened or the cabinet door is in an abnormal state, the comprehensive judgment result can be sent to the user terminal to remind the management personnel to check and eliminate the risk in time; and the alarm module can also be controlled to start sound and light alarm when the comprehensive judgment result is that the cabinet door is opened or the cabinet door is in an abnormal state, so as to facilitate the management personnel to locate and improve the processing efficiency.

[0042] One specific embodiment of the monitoring method for the outdoor cabinet door of the converter station in the embodiment of the present application comprises: Step 111, collecting first sensor data; The first sensor data is collected by a first sensor installed on the top or side of the cabinet door frame or the end of the track. The first sensor is a travel switch which is triggered when the door is closed, has high accuracy and is suitable for scenes with high reliability requirements. A high-precision and low-power model can be selected to ensure long-term stable operation.

[0043] Step 112, collecting second sensor data; The second sensor data is collected by a second sensor composed of a transmitter installed on the cabinet door and a receiver installed at a corresponding position of the door frame. The second sensor data is a light-sensing sensor, which is fast in response and long in service life, and can be applied to scenes with high requirements for detection speed and frequency.

[0044] Step 113, data preprocessing; In order to reduce the influence of noise or jitter on sensor data, the first sensor data can be de-jittered and filtered, and the second sensor data can be smoothed, so as to improve the quality of sensor data and the accuracy of subsequent judgment of whether the cabinet door is opened.

[0045] Step 114, comprehensive judgment of the opening and closing state of the cabinet door; First, whether the cabinet door is opened is judged according to different sensor data and preset switch circuits, and then the judgment results of different sensor data are comprehensively judged to obtain a comprehensive judgment result.

[0046] Step 115, obtaining alarm information according to the comprehensive judgment result.

[0047] When the comprehensive judgment result is that the cabinet door is opened or the cabinet door is in an abnormal state, the comprehensive judgment result can be sent to a user terminal to remind the management personnel to check and eliminate risks in time. In addition, when the comprehensive judgment result is that the cabinet door is opened or the cabinet door is in an abnormal state, the alarm module can be controlled to start sound and light alarm, so as to facilitate the management personnel to locate and improve the processing efficiency.

[0048] The monitoring method for the outdoor cabinet door of the converter station in the embodiment of the application can ensure the accuracy of monitoring by using multiple sensors and preset switch circuits to collect the state data of the cabinet door, and one of the sensors can work normally when the other one fails. The sensors are installed on the upper and lower parts of the cabinet door. The upper part mainly includes two types: a contact type and a light-sensing type. If rainwater and weeds enter the cabinet door, most of them enter from the upper part. The lower part is provided with a contact type online monitoring device to prevent small animals from entering the interior of the cabinet door.

[0049] The monitoring method for the outdoor cabinet door of the converter station chamber can monitor the state of the cabinet door in real time, whether it is normal opening and closing or abnormal opening, and can quickly send an alarm to let the staff know the situation at the first time and take timely measures to avoid safety accidents and equipment damage caused by the cabinet door being not closed or being abnormally opened. The opening and closing time, operation record and other information of the cabinet door can be accurately recorded to provide accurate data support for fault troubleshooting, maintenance management of the power equipment, facilitate the staff to quickly query and analyze, and improve the fault handling efficiency. The workload of manual inspection is greatly reduced, and a large number of personnel do not need to be arranged to regularly inspect the state of the cabinet door, thereby reducing the labor cost of the enterprise, so that the human resources can be more reasonably allocated to other important work. Through objective and accurate monitoring data, the possible missing inspection, wrong inspection and subjective judgment error of manual inspection are avoided, the accurate management of the state of the cabinet door is realized, and the overall management level of the power plant area is improved. Since the abnormality of the cabinet door can be found in time, dust, water vapor and the like are prevented from entering the equipment, the probability of equipment failure caused by environmental factors is reduced, the service life of the equipment is prolonged, and the reliability and stability of the operation of the power equipment are improved.

[0050] As shown in Figure 4 Embodiments of the present application provide a monitoring device 200 for the outdoor cabinet door of the converter station chamber, comprising: A first acquisition module 201 is configured to acquire first sensor data through a first sensor installed on a door frame of the cabinet door. A second acquisition module 202 is configured to acquire second sensor data through a second sensor installed at a corresponding position of the cabinet door and the door frame. A preprocessing module 203 is configured to preprocess the first sensor data and the second sensor data respectively to obtain first preprocessing data and second preprocessing data. A judgment module 204 is configured to comprehensively judge the opening and closing state of the cabinet door according to the first preprocessing data, the second preprocessing data and a preset switch circuit to obtain a comprehensive judgment result. An alarm module 205 is configured to obtain alarm information according to the comprehensive judgment result.

[0051] Optionally, preprocessing the first sensor data to obtain first preprocessing data comprises: Debouncing the first sensor data to obtain debounced data. Filtering the debounced data to obtain the first preprocessing data.

[0052] Optionally, preprocessing the second sensor data to obtain second preprocessing data comprises: According to Smoothing the second sensor data to obtain the second preprocessing data. in, is the sampling value at the i-th sampling moment in the second preprocessed data; n is a sliding window, which takes a value of 3 or 5; is the sampling value at the i-th sampling moment in the second sensor data.

[0053] Optionally, performing a comprehensive judgment on the switch state of the cabinet door according to the first preprocessed data, the second preprocessed data, and a preset switch circuit to obtain a comprehensive judgment result includes: Performing a first judgment on the switch state of the cabinet door according to the first preprocessed data to obtain a first judgment result; Performing a second judgment on the switch state of the cabinet door according to the second pre-processed data to obtain a second judgment result; Performing a third judgment on the switch state of the cabinet door according to the preset switch circuit to obtain a third judgment result; A comprehensive judgment is performed on the switch state of the cabinet door according to the first judgment result, the second judgment result and the third judgment result to obtain a comprehensive judgment result.

[0054] Optionally, performing a first judgment on the switch state of the cabinet door according to the first preprocessed data to obtain a first judgment result includes: Obtaining a preset first standard value; A first judgment is performed on the switch state of the cabinet door according to the preset first standard value and the first preprocessed data to obtain a first judgment result.

[0055] Optionally, performing a second judgment on the switch state of the cabinet door according to the second preprocessed data to obtain a second judgment result includes: Obtaining a preset second standard value and a preset reference value; according to , get the difference; Performing a second judgment on the switch state of the cabinet door according to the difference and the preset second standard value to obtain a second judgment result; in, is the difference, is the preset reference value, is the sampling value at the i-th sampling moment in the second preprocessed data.

[0056] Optionally, performing a third judgment on the switch state of the cabinet door according to a preset switch circuit to obtain a third judgment result includes: collecting first signal data through a preset switch circuit installed in the door frame and in contact with the door; A third judgment is performed on the switch state of the cabinet door according to the first signal data to obtain a third judgment result.

[0057] The monitoring device for the outdoor cabinet door of the converter station in an embodiment of the present invention collects first sensor data through a first sensor installed on the cabinet door frame, and collects second sensor data through a second sensor installed at corresponding positions of the cabinet door and the door frame, and then preprocesses the first sensor data and the second sensor data respectively to obtain first preprocessed data and second preprocessed data, and then comprehensively judges the switching state of the cabinet door based on the first preprocessed data, the second preprocessed data and the preset switching circuit to obtain a comprehensive judgment result, and finally obtains alarm information based on the comprehensive judgment result. The switching state of the cabinet door can be monitored in real time, and an alarm is automatically issued when the cabinet door is not closed tightly or is not closed, which is beneficial to reducing the monitoring cost of the outdoor cabinet door of the converter station and improving the monitoring efficiency and timeliness.

[0058] It should be noted that the device is a device corresponding to the above method, and all implementations in the above method embodiment are applicable to the embodiment of the device and can achieve the same technical effects, which will not be described in detail in this embodiment.

[0059] An embodiment of the present invention further provides a computing device comprising: a processor and a memory storing a computer program. When the computer program is executed by the processor, the computer program performs the method described in any of the above embodiments. All implementations in the above method embodiments are applicable to the embodiments of this device and can achieve the same technical effects. These are not further described in this embodiment.

[0060] An embodiment of the present invention further provides a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method described in any of the above embodiments. All implementations in the above method embodiments are applicable to the embodiments of the device and can achieve the same technical effects. These are not further described in this embodiment.

[0061] It should be noted that, in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and / or recombined. Such decomposition and / or recombination should be considered equivalent solutions of the present invention. Furthermore, the steps of performing the above series of processes can naturally be performed in chronological order according to the order described, but do not necessarily need to be performed in chronological order. Certain steps can be performed in parallel, interleaved, or independently of each other.

[0062] It is to be understood that the terminology "including", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion such that process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Exclusion of such elements is only present if it is expressly stated that these elements are excluded. Further, it is to be understood that the description of the embodiments of the present application is not limited to the order of the steps of the methods described herein and that unless otherwise specified, the steps of the methods described herein can be performed in any order. Additionally, features described with respect to certain examples can be combined in other examples.

[0063] The above description is considered that the preferred embodiments of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application described, can also make a number of improvements and refinements, these improvements and refinements should also be considered the scope of protection of the present application.

Claims

1. A monitoring method for outdoor cabinet doors of converter stations, characterized in that: include: Collecting first sensor data through a first sensor installed on the cabinet door frame; Collecting second sensor data through a second sensor installed at corresponding positions of the cabinet door and the door frame; Preprocessing the first sensor data and the second sensor data respectively to obtain first preprocessed data and second preprocessed data; Performing a comprehensive judgment on the switch state of the cabinet door according to the first pre-processed data, the second pre-processed data, and a preset switch circuit to obtain a comprehensive judgment result; According to the comprehensive judgment result, alarm information is obtained.

2. The monitoring method for outdoor cabinet doors of converter stations according to claim 1, characterized in that: Preprocessing the first sensor data to obtain first preprocessed data includes: performing de-jitter processing on the first sensor data to obtain de-jittered data; The de-jittered data is filtered to obtain first pre-processed data.

3. The monitoring method for outdoor cabinet doors of converter stations according to claim 1, characterized in that: Preprocessing the second sensor data to obtain second preprocessed data includes: according to performing smoothing processing on the second sensor data to obtain second preprocessed data; in, is the sampling value at the i-th sampling moment in the second preprocessed data; n is a sliding window, which takes a value of 3 or 5; is the sampling value at the i-th sampling moment in the second sensor data.

4. The monitoring method for outdoor cabinet doors of converter stations according to claim 1, characterized in that: A comprehensive judgment is performed on the switch state of the cabinet door according to the first pre-processed data, the second pre-processed data, and the preset switch circuit to obtain a comprehensive judgment result, including: Performing a first judgment on the switch state of the cabinet door according to the first preprocessed data to obtain a first judgment result; Performing a second judgment on the switch state of the cabinet door according to the second pre-processed data to obtain a second judgment result; Performing a third judgment on the switch state of the cabinet door according to the preset switch circuit to obtain a third judgment result; A comprehensive judgment is performed on the switch state of the cabinet door according to the first judgment result, the second judgment result and the third judgment result to obtain a comprehensive judgment result.

5. The monitoring method for outdoor cabinet doors of converter stations according to claim 4, characterized in that: Performing a first judgment on the open / closed state of the cabinet door according to the first preprocessed data to obtain a first judgment result includes: Obtaining a preset first standard value; A first judgment is performed on the switch state of the cabinet door according to the preset first standard value and the first preprocessed data to obtain a first judgment result.

6. The monitoring method for outdoor cabinet doors of converter stations according to claim 4, characterized in that: Performing a second judgment on the switch state of the cabinet door according to the second pre-processed data to obtain a second judgment result includes: Obtaining a preset second standard value and a preset reference value; according to , get the difference; Performing a second judgment on the switch state of the cabinet door according to the difference and the preset second standard value to obtain a second judgment result; in, is the difference, is the preset reference value, is the sampling value at the i-th sampling moment in the second preprocessed data.

7. The monitoring method for outdoor cabinet doors of a converter station according to claim 4, characterized in that: Performing a third judgment on the switch state of the cabinet door according to the preset switch circuit to obtain a third judgment result includes: collecting first signal data through a preset switch circuit installed in the door frame and in contact with the door; A third judgment is performed on the switch state of the cabinet door according to the first signal data to obtain a third judgment result.

8. A monitoring device for outdoor cabinet doors of converter stations, characterized in that: include: A first acquisition module is used to acquire first sensor data through a first sensor installed on the cabinet door frame; A second acquisition module is used to collect second sensor data through a second sensor installed at corresponding positions of the cabinet door and the door frame; a preprocessing module, configured to preprocess the first sensor data and the second sensor data respectively to obtain first preprocessed data and second preprocessed data; a judgment module, configured to comprehensively judge the switch state of the cabinet door according to the first pre-processed data, the second pre-processed data and a preset switch circuit, and obtain a comprehensive judgment result; The alarm module is used to obtain alarm information according to the comprehensive judgment result.

9. A computing device, characterized in that include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 7 is performed.

10. A computer-readable storage medium, characterized in that The device stores instructions, which, when executed on a computer, enable the computer to execute the method according to any one of claims 1 to 7.

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