Safety warning system for maintenance of power cabinet

Abstract

The invention relates to the technical field of safety warning, in particular to a safety warning system for power cabinet maintenance. Comprising a data acquisition module, a server, a data monitoring module, a maintenance distribution module and a safety warning module, through real-time data acquisition and matching value calculation, abnormal conditions in the working environment of the power cabinet can be found in time, and potential risks are reduced. According to the analysis result of the abnormal value and the matching value, maintenance and adjustment can be performed in a targeted manner, and the operation efficiency and safety of the power cabinet are improved; by marking and delimiting the safety warning area, workers can be helped to determine which areas possibly have risks in the factory, so that the alertness and the response speed of the workers are improved; according to a real-time monitoring and early warning system, potential security threats can be found and responded in time, and the possibility of accidents is reduced; the efficiency and accuracy of security management can be improved by combining security early warning and an identity verification system.

Description

Technical Field

[0001] The present invention relates to the technical field of safety warnings, and in particular to a safety warning system for power cabinet maintenance. Background Art

[0002] The power cabinet is an important part of the power system, responsible for the distribution and protection of electric energy. Regular maintenance can ensure that the internal connections and components are not loose, corroded or damaged, thereby avoiding fires, electric shocks or other safety accidents caused by circuit failures. Therefore, it is very important to regularly maintain the power cabinet to ensure the safe operation of the power system and extend the life of the equipment.

[0003] Currently, during the maintenance of power cabinets, some specific maintenance activities are not included in the warning scope because the warning information is not updated in time, thus ignoring potential safety risks. If they are not discovered and handled in time, they will pose a threat to the safety of operators and power systems. Summary of the invention

[0004] To this end, the present invention provides a safety warning system for power cabinet maintenance to overcome the problems mentioned in the above background technology.

[0005] To achieve the above object, the present invention provides a safety warning system for power cabinet maintenance, including: a data acquisition module, a server, a data monitoring module, a maintenance allocation module and a safety warning module; the specific steps are:

[0006] The data monitoring module determines whether there is any abnormality in the power cabinet by monitoring the equipment information of the power cabinet, and identifies the abnormal power cabinet and its corresponding abnormal value accordingly;

[0007] The maintenance allocation module allocates each abnormal power cabinet based on the abnormal value corresponding to the cabinet to allocate each abnormal power cabinet to a suitable maintenance personnel end;

[0008] The safety warning module issues safety warnings based on each abnormal power cabinet and its corresponding abnormal value. The specific steps are as follows:

[0009] Step 1: Obtain the volume Vi of the abnormal power cabinet; obtain the abnormal value Ki of the abnormal power cabinet; substitute the value of the volume Vi of the abnormal power cabinet and the value of the abnormal value Ki of the abnormal power cabinet into the formula Qi=λ×[(d1×Vi+d2×Ki)] to calculate the area length Qi; wherein d1 and d2 are the set weight factors, and λ is the set length conversion coefficient;

[0010] Step 2: Obtain the shape of the contact surface between the abnormal power cabinet and the ground, and draw it to obtain a contact map, then take the center point of the contact map as the circle point of the safety warning area, and divide a circular area with the area length Qi as the radius as the safety warning area; thus, the safety warning area of ​​each abnormal power cabinet can be obtained;

[0011] Step 3: Mark the abnormal power cabinet and its corresponding safety warning area on the plant map and mark them in red; obtain the plant video data in real time, select the video of the safety warning area where the abnormal power cabinet is located, and issue a safety warning when someone approaches, and remind the staff to avoid it;

[0012] Step 4: When the maintenance personnel approaches the punch card device to sign in, the basic information of the maintenance personnel is obtained and compared with the comparison information. If the two are the same, the safety warning is lifted; if the two are different, a safety warning is issued and the staff is reminded to avoid it.

[0013] As a preferred implementation of the present invention, by monitoring the power cabinet equipment information, the specific steps are:

[0014] Retrieve the power cabinet equipment information at the time of collection, wherein the power cabinet equipment information includes the location, current value, voltage value, and temperature value of the power equipment; record the current value, voltage value, and temperature value as Li j, Yi j, and Di j, respectively; wherein i=1, 2, 3...I, I is a positive integer, I represents the total number of power cabinet equipment, and i represents the serial number of any power cabinet; thus, each power cabinet equipment corresponds to a unique number i; j=1, 2, 3...J, J is a positive integer, J represents the total number of collection time, and j represents the serial number of any collection time; set the power cabinet to have a standard margin parameter, wherein the standard margin parameter includes a rated voltage value range, a rated current range, and a safe temperature range;

[0015] The current value Lij, voltage value Yij and temperature value Dij at each acquisition moment are compared with the standard parameters to obtain the reference current value, reference voltage value and reference temperature value, which are recorded as CLij, CYij and CDij respectively;

[0016] Substitute the current value Lij, voltage value Yij, temperature value Dij, reference current value CLij, reference voltage value CYij and reference temperature value CDij into the formula

[0017] The matching value Zij is calculated; where a1, a2 and a3 are the set weight factors respectively; thus, the matching value corresponding to each acquisition time can be obtained; from the formula, it can be seen that when the current value collected by each power cabinet is closer to the reference current value interval (i.e. The closer the voltage is to zero), the greater the matching value; when the voltage value is closer to the reference voltage value interval (i.e. The closer the temperature value is to the reference temperature range (i.e. The closer it is to zero), the greater the matching value; the greater the matching value, the less the need to adjust the current value, voltage value and temperature value;

[0018] With time as the horizontal axis and matching value as the vertical axis, a line graph of matching value changing over time is obtained, and slope analysis is performed based on this to obtain abnormal values;

[0019] An abnormal threshold is set and compared with the abnormal value of each power cabinet. When the abnormal value of the power cabinet is greater than or equal to the set abnormal threshold, the power cabinet is recorded as an abnormal power cabinet. Thus, each abnormal power cabinet and its corresponding abnormal value are obtained and sent to the safety warning module and maintenance allocation module.

[0020] As a preferred embodiment of the present invention, the comparison method of the reference current value, the reference voltage value and the reference temperature value is specifically as follows:

[0021] When the current value is greater than the upper limit of the rated current interval, the upper limit of the rated current interval is used as the reference current value; when the current value is within the rated current interval, the current value is used as the reference current value; when the current value is less than the lower limit of the rated current interval, the lower limit of the rated current interval is used as the reference current value;

[0022] Similarly, the voltage value and the temperature value are compared with the rated voltage value and the safe temperature range respectively to obtain a reference voltage value and a reference temperature value.

[0023] As a preferred embodiment of the present invention, the specific steps of slope analysis are:

[0024] The slope of the line segment composed of two adjacent matching points is recorded as the matching slope, and the matching slope represents the changing trend of the environmental matching values ​​of the two adjacent matching points; the number of matching slopes greater than zero H1 is counted, and the matching slopes greater than zero are summed up to obtain the environmental improvement degree G4; the number of matching slopes less than zero H2 is counted, and the matching slopes less than zero are summed up and the absolute value is taken to obtain the environmental severity G5; the number of matching slopes equal to zero H3 is counted; the numerical values ​​of the number of matching slopes greater than zero H1, the environmental improvement degree G4, the number of matching slopes less than zero H2, the environmental severity G5 and the number of matching slopes equal to zero H3 are substituted into the formula The outlier value Ki is calculated, where b1 and b2 are the set weight factors.

[0025] As a preferred embodiment of the present invention, the maintenance allocation module performs allocation based on the abnormal value of each abnormal power cabinet, and the specific steps are as follows:

[0026] Step 1: sort all abnormal power cabinets in descending order according to their abnormal values, and select the abnormal power cabinet with the largest abnormal value as the power cabinet to be maintained;

[0027] Step 2: Obtain the historical maintenance times TRm of the maintenance personnel; obtain the location of the abnormal power cabinet and the location of the maintenance personnel to calculate the distance to obtain the maintenance interval GRm; obtain the number of power cabinets to be maintained URm in the background of the maintenance personnel;

[0028] Step 3: Substitute the values ​​of the historical maintenance times TRm, maintenance interval GRm, and the number of power cabinets to be maintained URm into the formula The maintenance value WRm is calculated, where n1, n2 and n3 are the set weight factors; the maintenance values ​​of all the maintenance personnel terminals are obtained, and the power cabinet to be maintained is allocated to the maintenance personnel terminal with the highest maintenance value, and the number of power cabinets to be maintained in the background of the maintenance personnel terminal increases by one;

[0029] Step 4: Repeat the above steps 1 to 4 until all the power cabinets to be maintained are assigned and maintained, and the maintenance personnel perform maintenance in turn according to the assigned power cabinets to be maintained; when the maintenance personnel complete the maintenance of each power cabinet, the number of power cabinets to be maintained in the background of the maintenance personnel is reduced by one, and the number of power cabinets to be maintained by the maintenance personnel is updated to step 3;

[0030] Step 5: Set a punch card device to be installed next to each power cabinet, send the basic information of the maintenance personnel of the abnormal power cabinet to the corresponding punch card device, and use it as comparison information.

[0031] Beneficial effects of the present invention:

[0032] 1. By collecting data in real time and calculating matching values, abnormal conditions in the working environment of the power cabinet can be discovered in time to reduce potential risks; based on the analysis results of abnormal values ​​and matching values, targeted maintenance and adjustments can be carried out to improve the operating efficiency and safety of the power cabinet; analyzing the changing trend of matching values ​​can help predict potential problems, provide early warnings, and avoid equipment failures and downtime; by timely discovering and handling abnormal power cabinets, the risk of equipment failures can be reduced, power outages can be reduced, and the stable operation of the power system can be guaranteed.

[0033] 2. By marking and demarcating safety warning areas, it can help workers clearly identify which areas within the factory may have risks, thereby increasing their vigilance and response speed; based on real-time monitoring and early warning systems, potential safety threats can be discovered and responded to in a timely manner, reducing the possibility of accidents; combined with safety warning and identity authentication systems, the efficiency and accuracy of safety management can be improved, ensuring that only authorized personnel approach equipment that requires maintenance, which helps to improve the overall safety and reliability of the factory, reduce the risk of production interruptions and personal injury, and is an important safety management measure in modern industrial environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic diagram of system module connection of the present invention;

[0035] Figure 2 It is a schematic diagram of the safety warning area of ​​the present invention. DETAILED DESCRIPTION

[0036] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0038] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0039] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] See also Figure 1 As shown, the present invention is a safety warning system for power cabinet maintenance, comprising: a data acquisition module, a server, a data monitoring module, a maintenance allocation module and a safety warning module;

[0041] The data acquisition module collects the power cabinet equipment information inside the power cabinet through the sensor installed on the power cabinet, and sends the collected power cabinet equipment information to the server for storage; the power cabinet equipment information includes the location, current value, voltage value, and temperature value of the power cabinet equipment;

[0042] The server stores the received power cabinet equipment information and sends it to the data monitoring module;

[0043] The data monitoring module monitors the power cabinet equipment information to determine whether there is an abnormality and identify the abnormal power cabinet accordingly; the specific steps are as follows:

[0044] Retrieve the power cabinet equipment information at each collection time, wherein the power cabinet equipment information includes the location, current value, voltage value, and temperature value of the power cabinet equipment; record the current value, voltage value, and temperature value as Lij, Yij, and Dij, respectively; wherein i=1, 2, 3...I, I is a positive integer, I represents the total number of power cabinet equipment, and i represents the serial number of any power cabinet; thus, each power cabinet equipment corresponds to a unique number i; j=1, 2, 3...J, J is a positive integer, J represents the total number of collection time, and j represents the serial number of any collection time;

[0045] It is assumed that each power cabinet has a standard margin parameter, wherein the standard margin parameter includes a rated voltage range, a rated current range and a safe temperature range; it should be noted that the standard margin parameter refers to a set of environmental conditions set during the design, operation and maintenance of the power cabinet power equipment to ensure that the equipment can operate in the best state, and they represent the most suitable working environment state required by the power cabinet;

[0046] The current value Lij, voltage value Yij and temperature value Dij at each acquisition moment are compared with the standard parameters to obtain the reference current value, reference voltage value and reference temperature value, which are recorded as CLij, CYij and CDij respectively; the specific comparison method is:

[0047] When the current value is greater than the upper limit of the rated current interval, the upper limit of the rated current interval is used as the reference current value; when the current value is within the rated current interval, the current value is used as the reference current value; when the current value is less than the lower limit of the rated current interval, the lower limit of the rated current interval is used as the reference current value;

[0048] When the voltage value is greater than the upper limit of the rated voltage interval, the upper limit of the rated voltage interval is used as the reference voltage value; when the voltage value is within the rated voltage interval, the voltage value is used as the reference voltage value; when the voltage value is less than the lower limit of the rated voltage interval, the lower limit of the rated voltage interval is used as the reference voltage value;

[0049] When the temperature value is greater than the upper limit of the safe temperature range, the upper limit of the safe temperature range is used as the reference temperature value; when the temperature value is within the safe temperature range, the temperature value is used as the reference temperature value; when the temperature value is less than the lower limit of the safe temperature range, the lower limit of the safe temperature range is used as the reference temperature value;

[0050] Substitute the current value Lij, voltage value Yij, temperature value Dij, reference current value CLij, reference voltage value CYij and reference temperature value CDij into the set formula The matching value Zij is calculated, where a1, a2 and a3 are the set weight factors, a1 is 4.28, a2 is 5.54, and a3 is 3.66; thus, the matching value corresponding to each acquisition time can be obtained; from the formula, it can be seen that when the current value collected by each power cabinet is closer to the reference current value interval (i.e. The closer the voltage is to zero), the greater the matching value; when the voltage value is closer to the reference voltage value interval (i.e. The closer the temperature value is to the reference temperature range (i.e. The closer it is to zero), the greater the matching value; it should be noted that the greater the matching value, the smaller the need for regulating the current value, voltage value and temperature value;

[0051] A two-dimensional rectangular coordinate system is constructed with time as the horizontal coordinate and matching value as the vertical coordinate. The matching value is input into the coordinate system according to its corresponding collection time, and the position of the matching value in the coordinate system is recorded as the matching point. The matching points are connected in sequence by line segments to obtain a line relationship diagram of the matching value changing with time; the slope of the line segment composed of two adjacent matching points is calculated and recorded as the matching slope, and the matching slope represents the changing trend of the environmental matching value of the two adjacent matching points; when the matching slope is greater than zero, it means that the environmental matching value of the matching point shows an upward trend, indicating that the working environment of the power cabinet from the matching point to the next matching point tends to improve; when the matching slope is less than zero, it means that the matching value of the matching point is increasing. It indicates that the working environment of the power cabinet from this matching point to the next matching point tends to be bad; the number of matching slopes greater than zero is recorded as H1, and the matching slopes greater than zero are summed up to obtain the environmental improvement degree recorded as G4; the number of matching slopes less than zero is recorded as H2, and the matching slopes less than zero are summed up and the absolute value is taken to obtain the environmental severity degree recorded as G5; the number of matching slopes equal to zero is recorded as H3; the numerical values ​​of the number of matching slopes greater than zero H1, the environmental improvement degree G4, the number of matching slopes less than zero H2, the environmental severity G5 and the number of matching slopes equal to zero H3 are substituted into the set formula The outlier value Ki is obtained by calculation; b1 and b2 are the set weight factors; from the formula, it can be seen that when the environmental improvement is smaller and the environmental severity is greater, it means that the environment and the power cabinet are less suitable, the environment has greater interference and influence on the power cabinet, and the outlier value is larger; the more H2, the more stable the influence of the environment on the power cabinet, and the smaller the outlier value; on the contrary, the larger H1 and H3, the more fluctuating the interference of the environment on the power cabinet, and the larger the outlier value;

[0052] An abnormal threshold is set, and it is compared and analyzed with the abnormal value of each power cabinet. When the abnormal value of the power cabinet is greater than or equal to the set abnormal threshold, it means that there is a relatively large abnormal risk in the power cabinet, and the power cabinet is recorded as an abnormal power cabinet; thus, each abnormal power cabinet and its corresponding abnormal value can be obtained, and sent to the safety warning module and the maintenance allocation module;

[0053] By collecting data in real time and calculating matching values, abnormal conditions in the working environment of the power cabinet can be discovered in time to reduce potential risks. According to the analysis results of abnormal values ​​and matching values, targeted maintenance and adjustments can be carried out to improve the operating efficiency and safety of the power cabinet. Analysis of the changing trend of matching values ​​can help predict potential problems, provide early warnings, and avoid equipment failures and downtime. By timely discovering and handling abnormal power cabinets, the risk of equipment failures is reduced, power outages are reduced, and the stable operation of the power system is guaranteed.

[0054] The maintenance allocation module allocates maintenance personnel based on each abnormal power cabinet and its corresponding abnormal value. The specific steps are as follows:

[0055] Step 1: sort all abnormal power cabinets in descending order according to their abnormal values, and select the abnormal power cabinet with the largest abnormal value as the power cabinet to be maintained;

[0056] Step 2: Mark the end of the person to be maintained (the end of the person to be maintained includes but is not limited to smart phones and smart watches) as Rm, m = 1, 2, 3...M, M is a positive integer, M represents the total number of the end of the person to be maintained, and m represents the sequence number of any one of the ends of the person to be maintained; obtain the historical maintenance times of the end of the person to be maintained and record it as TRm; obtain the location of the abnormal power cabinet and the location of the end of the person to be maintained to calculate the distance to obtain the maintenance interval, marked as GRm; obtain the number of power cabinets to be maintained in the background of the end of the person to be maintained and record it as URm;

[0057] Step 3: Substitute the values ​​of the historical maintenance times TRm, maintenance interval GRm, and the number of power cabinets to be maintained URm into the set formula The maintenance value WRm is calculated, where n1, n2 and n3 are set weight factors, and n1, n2 and n3 are custom values, which are 2.2, 1.15 and 1.21 respectively; thus, the maintenance values ​​of all maintenance personnel are obtained, and the power cabinet to be maintained is allocated to the maintenance personnel with the highest maintenance value, and the number of power cabinets to be maintained in the background of the maintenance personnel increases by one;

[0058] Step 4: Repeat the above steps 1 to 4 until all the power cabinets to be maintained are assigned and maintained, and the maintenance personnel perform maintenance in turn according to the assigned power cabinets to be maintained; when the maintenance personnel complete the maintenance of each power cabinet, the number of power cabinets to be maintained in the background of the maintenance personnel is reduced by one, and the number of power cabinets to be maintained by the maintenance personnel is updated to step 3;

[0059] Step 5: Set a punch card device to be installed next to each power cabinet, send the basic information of the maintenance personnel of the abnormal power cabinet to the corresponding punch card device, and use it as comparison information;

[0060] By comprehensively considering the risks of abnormal power cabinets and the capabilities of maintenance personnel, the allocation of maintenance resources is effectively optimized, and maintenance efficiency and response speed are improved; giving priority to power cabinets with larger abnormal values ​​can effectively reduce the possibility of potential equipment failures or safety accidents, and enhance production safety; through reasonable allocation and real-time updating of task status, human task allocation errors and time waste are reduced, and the overall work efficiency of the maintenance team is improved; the real-time update of the clock-in device and task status enhances the monitoring and management of the maintenance process, which helps to achieve higher work transparency and responsibility traceability, and can effectively optimize the maintenance management of factory equipment and improve production safety and maintenance efficiency.

[0061] The safety warning module issues safety warnings based on each abnormal power cabinet and its corresponding abnormal value. The specific steps are as follows:

[0062] Step 1: Obtain the volume of the abnormal power cabinet and record it as Vi; obtain the abnormal value Ki of the abnormal power cabinet; substitute the values ​​of the volume Vi of the abnormal power cabinet and the abnormal value Ki of the abnormal power cabinet into the set formula Qi=λ×[(d1×Vi+d2×Ki)] to calculate the area length Qi; wherein d1 and d2 are set weight factors, λ is the set length conversion coefficient; d1 is 2.25, a2 is 0.65, and λ is 2.45;

[0063] Step 2: If Figure 2 As shown, the shape of the contact surface between the abnormal power cabinet and the ground is obtained, and it is drawn to obtain a contact map, and then the center point of the contact map is taken as the dot of the safety warning area, and a circular area is divided as the safety warning area with the area length Qi as the radius; thus, the safety warning area of ​​each abnormal power cabinet can be obtained;

[0064] Step 3: Mark the abnormal power cabinet and its corresponding safety warning area on the plant map and mark it in red; it should be noted that there are several power cabinets in a large plant. Dispersing the power cabinets according to different areas or functions can reduce the impact of the fault on the entire plant, because if there is a problem with the power cabinet in one area, the power supply in other areas will not be affected. In addition, dispersed placement helps to reduce the length and loss of power lines and improve the reliability of power supply; obtain real-time video data of the plant, select the video of the safety warning area where the abnormal power cabinet is located, and issue a safety warning when someone approaches, and remind the staff to avoid it;

[0065] Step 4: When the maintenance personnel approaches the punch card device to sign in, the basic information of the maintenance personnel is obtained and compared with the comparison information. If the two are the same, the safety warning is lifted; if the two are different, a safety warning is issued and the staff is reminded to avoid it;

[0066] By marking and demarcating safety warning areas, workers can be helped to identify which areas within the factory may be at risk, thereby increasing their alertness and response speed; based on real-time monitoring and early warning systems, potential safety threats can be discovered and responded to in a timely manner, reducing the possibility of accidents; combined with safety warning and identity authentication systems, the efficiency and accuracy of safety management can be improved, ensuring that only authorized personnel approach equipment that requires maintenance, which helps to improve the overall safety and reliability of the factory, reduce the risk of production interruptions and personal injury, and is an important safety management measure in modern industrial environments.

[0067] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety warning system for power cabinet maintenance, comprising: Data acquisition module and server; The data acquisition module is used to collect power cabinet equipment information and send it to the server for storage, wherein the power cabinet equipment information includes the location, current value, voltage value and temperature value of the power equipment; it is characterized by further comprising: a data monitoring module, a maintenance allocation module and a safety warning module; The data monitoring module determines whether there is any abnormality in the power cabinet by monitoring the equipment information of the power cabinet, and identifies the abnormal power cabinet and its corresponding abnormal value accordingly; The maintenance allocation module allocates each abnormal power cabinet based on the abnormal value corresponding to the cabinet to allocate each abnormal power cabinet to a suitable maintenance personnel end; The safety warning module issues safety warnings based on each abnormal power cabinet and its corresponding abnormal value. The specific steps are as follows: Step 1: Obtain the volume and abnormal value of the abnormal power cabinet, and normalize the value of the volume and the value of the abnormal value of the abnormal power cabinet to obtain the region length; Step 2: Obtain the shape of the contact surface between the abnormal power cabinet and the ground, and draw it to obtain a contact map, then take the center point of the contact map as the point of the safety warning area, and divide a circular area with the length of the area as the radius as the safety warning area; thus, the safety warning area of ​​each abnormal power cabinet can be obtained; Step 3: Mark the abnormal power cabinet and its corresponding safety warning area on the plant map and mark them in red; obtain the plant video data in real time, select the video of the safety warning area where the abnormal power cabinet is located, and issue a safety warning when someone approaches, and remind the staff to avoid it; Step 4: When the maintenance personnel approaches the punch card device to sign in, the basic information of the maintenance personnel is obtained and compared with the comparison information. If the two are the same, the safety warning is lifted; if the two are different, a safety warning is issued and the staff is reminded to avoid it.

2. A safety warning system for power cabinet maintenance according to claim 1, characterized in that: The specific steps for monitoring the power cabinet equipment information are as follows: Retrieve the power cabinet equipment information at the time of collection, and set a standard margin parameter for the power cabinet, where the standard margin parameter includes a rated voltage value range, a rated current range, and a safe temperature range; Compare the current value, voltage value and temperature value at each acquisition moment with the standard parameters to obtain a reference current value, a reference voltage value and a reference temperature value; Normalizing the current value, the voltage value, the temperature value, the reference current value, the reference voltage value and the reference temperature value to obtain a matching value; Thus, the matching value corresponding to each acquisition time can be obtained; With time as the horizontal axis and matching value as the vertical axis, a line graph of matching value changing over time is obtained, and slope analysis is performed based on this to obtain abnormal values; An abnormal threshold is set and compared with the abnormal value of each power cabinet. When the abnormal value of the power cabinet is greater than or equal to the set abnormal threshold, the power cabinet is recorded as an abnormal power cabinet. Thus, each abnormal power cabinet and its corresponding abnormal value can be obtained and sent to the safety warning module and maintenance allocation module.

3. A safety warning system for power cabinet maintenance according to claim 2, characterized in that: The comparison method of the reference current value, the reference voltage value and the reference temperature value is specifically as follows: When the current value is greater than the upper limit of the rated current interval, the upper limit of the rated current interval is used as the reference current value; when the current value is within the rated current interval, the current value is used as the reference current value; When the current value is less than the lower limit of the rated current interval, the lower limit of the rated current interval is used as the reference current value; Similarly, the voltage value and the temperature value are compared with the rated voltage value and the safe temperature range respectively to obtain a reference voltage value and a reference temperature value.

4. A safety warning system for power cabinet maintenance according to claim 2, characterized in that: The specific steps of slope analysis are: The slope of the line segment formed by two adjacent matching points is calculated and recorded as the matching slope, which represents the changing trend of the environmental matching values ​​of the two adjacent matching points; the number of matching slopes greater than zero is counted, and the matching slopes greater than zero are summed to obtain the environmental improvement degree; Count the number of matching slopes less than zero, sum up the matching slopes less than zero and take the absolute value to obtain the environmental severity; count the number of matching slopes equal to zero; normalize the values ​​of the number of matching slopes greater than zero, the environmental improvement, the number of matching slopes less than zero, the environmental severity and the number of matching slopes equal to zero to obtain the outlier.

5. A safety warning system for power cabinet maintenance according to claim 1, characterized in that: The maintenance allocation module allocates based on the abnormal values ​​of each abnormal power cabinet. The specific steps are as follows: Step 1: sort all abnormal power cabinets in descending order according to their abnormal values, and select the abnormal power cabinet with the largest abnormal value as the power cabinet to be maintained; Step 2: Obtain the historical maintenance times of the maintenance personnel; obtain the location of the abnormal power cabinet and the location of the maintenance personnel to calculate the distance to obtain the maintenance interval; Obtain the number of power cabinets to be maintained in the background of the maintenance personnel; Step 3: Normalize the values ​​of the historical maintenance times, maintenance intervals, and the number of power cabinets to be maintained to obtain a maintenance value; thereby, the maintenance values ​​of all maintenance personnel can be obtained, and the power cabinet to be maintained is allocated to the maintenance personnel with the highest maintenance value, and the number of power cabinets to be maintained in the background of the maintenance personnel increases by one; Step 4: Repeat the above steps 1 to 4 until all the power cabinets to be maintained are assigned and maintained, and the maintenance personnel perform maintenance in turn according to the assigned power cabinets to be maintained; when the maintenance personnel complete the maintenance of each power cabinet, the number of power cabinets to be maintained in the background of the maintenance personnel is reduced by one, and the number of power cabinets to be maintained by the maintenance personnel is updated to step 3; Step 5: Set a punch card device to be installed next to each power cabinet, send the basic information of the maintenance personnel of the abnormal power cabinet to the corresponding punch card device, and use it as comparison information.

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