Security assessment method and system for power grid construction project site

Abstract

The invention discloses a safety assessment method and system for a power grid construction project site, and relates to the technical field of safety assessment, and the method comprises the steps: building a temporary power supply circuit according to various types of information of the power grid construction project site, and monitoring each influence moment of the power grid construction project site in a power grid construction process; the method comprises the steps of obtaining influence moments, analyzing to obtain influence events corresponding to the influence moments, evaluating the safety influence of the influence events on a temporary power supply circuit of a power grid construction site, monitoring personnel activity conditions within a safety threshold distance of target construction equipment, and evaluating the safety of the target construction equipment and related workers. The method greatly improves the recognition efficiency and accuracy of each influence event threatening the safety of the temporary power supply circuit, guarantees the power supply safety of the temporary circuit, effectively evaluates the safety of the field equipment of the power grid construction project, and avoids the safety accidents and dangerous behaviors of the construction site.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of safety assessment, in particular to a safety assessment method and system for a power grid construction project site. BACKGROUND

[0002] A power grid construction project refers to an engineering project carried out for constructing, upgrading and expanding a power system, and the core is to construct power transmission lines, substations and power distribution facilities, etc. Safety assessment of a power grid construction project site can identify and control risks in advance, avoid safety accidents, and ensure project compliance. Therefore, the application provides a safety assessment method and system for a power grid construction project site.

[0003] The prior art, such as the safety assessment method and system for a power grid construction project site disclosed in the patent application with the publication number CN116739343A, comprises: obtaining state information of a tower crane; based on the state information of the tower crane, determining whether there is a hoisted object on the tower crane, and calculating the tower crane construction range; if there is a hoisted object on the tower crane, obtaining images within the tower crane construction range, and performing personnel detection; if personnel are detected, it is determined that there is a safety hazard in the power grid construction project site; if there is no hoisted object on the tower crane, obtaining images within all ranges of the power grid construction project site, and performing personnel detection; if personnel are detected, the detected personnel are classified according to dangerous behaviors.

[0004] The prior art, such as the invention application patent with the publication number CN115564161A, discloses a smart power grid power generation facility engineering project construction evaluation analysis method. The smart power grid power generation facility engineering project construction evaluation analysis method comprises: obtaining basic information corresponding to a target power generation facility engineering to be constructed wind field; collecting resource information corresponding to the location of the to-be-constructed wind field; collecting environmental information corresponding to the to-be-constructed wind field; extracting environmental hazard information corresponding to the location of the to-be-constructed wind field; evaluating the construction value coefficient corresponding to the location of the to-be-constructed wind field, and confirming the construction state corresponding to the location of the to-be-constructed wind field according to the evaluation result; the present application effectively solves the problem of insufficient pertinence in the evaluation process of the prior art, breaks the generality of the current to-be-constructed wind field site selection evaluation, effectively improves the reliability of the evaluation result of the to-be-constructed wind field, and ensures the safety and stability of the subsequent wind power generation operation process.

[0005] For the above-mentioned scheme, there are the following technical problems: 1. The current technology performs safety assessment on the tower crane safety situation of the power grid construction project site. All facilities in the power grid construction project site work based on a temporary power supply circuit, so safety assessment of the temporary power supply circuit is very important. The current technology does not consider this point in safety assessment of the power grid construction project site.

[0006] 2. Current technology does not assess the site safety of power grid construction projects. In the process of power grid construction, the early site selection, the monitoring of the construction process and the later acceptance are all very important. Current technology does not take into account the monitoring of temporary power supply circuits and key construction equipment during the construction process, which in turn affects the construction progress and personnel safety of power grid construction projects. Summary of the Invention

[0007] The purpose of this application is to provide a method and system for on-site safety assessment of power grid construction projects, which solves the problems existing in the background technology.

[0008] To solve the above-mentioned technical problems, this application adopts the following technical solution: In the first aspect, this application provides a safety assessment method for power grid construction projects, including: Step 1, information acquisition: Before the power grid construction project is started, environmental information, equipment information, material information, building information, budget information and power grid construction information of the power grid construction project site are detected and acquired.

[0009] Step 2: Temporary Circuit Construction: Based on the environmental information, equipment information, material information, building information, budget information, and power grid construction information at the power grid construction site, analyze the optimal construction route for the temporary power supply circuit, and then construct the temporary power supply circuit for the power grid construction project based on the optimal construction route.

[0010] Step 3: On-site safety analysis: During the construction of the power grid project, the construction site is monitored to obtain the various moments of impact on the temporary power supply circuit, and then to obtain the various impact events at each moment of impact. The impact of each impact event on the temporary circuit is analyzed, and the safety of the temporary power supply circuit at the power grid construction project site is assessed accordingly.

[0011] Step 4: Equipment Safety Analysis: Based on the equipment information of the power grid construction project, the monitoring equipment for each target is obtained, and a safety assessment is conducted on the monitoring equipment for each target under different conditions.

[0012] In a second aspect, this application provides a safety assessment system for power grid construction projects, comprising: an information acquisition module for detecting and acquiring environmental information, equipment information, material information, building information, budget information, and power grid construction information at the power grid construction project site before the commencement of the power grid construction project.

[0013] Temporary circuit construction module: It is used to analyze the environmental information, equipment information, material information, building information, budget information and power grid construction information of the power grid construction project site to obtain the optimal construction route of the temporary power supply circuit, and then construct the temporary power supply circuit of the power grid construction project based on the optimal construction route.

[0014] The on-site safety analysis module is used for monitoring the construction site in the process of power grid project construction, obtaining each influence moment of the temporary power supply circuit in the construction site, and then obtaining each influence event of each influence moment, so as to analyze the influence of each influence event on the temporary circuit, and evaluate the safety of the temporary power supply circuit of the power grid construction project site.

[0015] The device safety analysis module is used for obtaining each target monitoring device according to the device information of the power grid construction project, and performing safety evaluation on each target monitoring device in different states.

[0016] The beneficial effects of the present application are as follows: 1. The present application analyzes various information of the power grid construction project site to obtain the best layout route of the temporary power supply circuit, which not only ensures the safety of the temporary power supply circuit, but also takes into account the cost rationality. At the same time, in the construction process, the digital twin model is introduced to analyze the safety characteristic value of the temporary power supply circuit, which breaks through the limitations and errors of traditional safety monitoring, greatly improves the accuracy and efficiency of safety evaluation. The present application upgrades the risk early warning response speed of the temporary circuit of the power grid construction project site, avoids the problem that the damage caused by the influence event related to the temporary power supply circuit cannot be discovered in time, and ensures the safety of the power grid construction project site.

[0017] 2. The present application formulates differentiated safety evaluation rules for different devices in different states, and then more effectively correlates, cuts and involves risk devices, accurately identifies safety hazards in different working scenarios, greatly improves the safety of the device, ensures the service life of the device, effectively protects the safety of the relevant staff, and avoids the occurrence of accidents. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The present application is a method implementation step flowchart.

[0020] Figure 2 The present application is a system structure connection diagram. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. Figure 1 The present application provides a safety evaluation method for a power grid construction site in a first aspect, comprising the following steps: Step one, information acquisition: detecting and acquiring environmental information, equipment information, material information, building information, budget information and power grid construction information of the power grid construction site before the power grid construction project is started.

[0023] It should be noted that the environmental information of the power grid construction project is obtained by field exploration, and the equipment information, material information, budget information and power grid construction information of the power grid construction project are obtained from relevant management departments.

[0024] In a specific example, the environmental information includes natural environment data and ecological protection requirements; the equipment information includes equipment basic information and equipment technical parameters; the material information includes material basic information and material supply information; the building information includes power grid construction project related building information and surrounding building information; the budget information represents the construction budget for the temporary power supply circuit; and the power grid construction information includes current power grid construction information and surrounding historical power grid information.

[0025] It should be noted that the natural environment data includes topography, meteorology and hydrology of the power grid construction area, and the ecological protection requirements include whether there are natural reserves and endangered species habitats in the power grid construction area and corresponding restriction measures; the equipment basic information includes equipment name, equipment number and equipment parking position; the equipment technical parameters include equipment voltage and power; the basic material information includes material name, quantity, number and placement position; the material supply information includes transportation mode, supply cycle and parking position of transportation equipment; the power grid construction project related building information and surrounding building information include the number, construction position and construction size of the power grid construction project related building and surrounding building; and the current power grid construction information and surrounding historical power grid information represent the structure and route voltage level of the current power grid and surrounding historical power grid.

[0026] Step two, temporary circuit building: based on the environmental information, equipment information, material information, building information, budget information and power grid construction information of the power grid construction site, the best building route of the temporary power supply circuit is analyzed, and then the temporary power supply circuit of the power grid construction project is built based on the best building route.

[0027] In a specific example, the optimal route for temporary power supply circuits is determined by analyzing environmental, equipment, material, building, budget, and power grid construction information at the power grid construction project site. The specific analysis process is as follows: First, based on the environmental, building, and power grid construction information at the power grid construction project site, the expected starting and ending points of each power source for the temporary power supply circuits are obtained. Simultaneously, each power consumption node at the power grid construction project site is obtained, leading to the determination of each set of temporary power supply routes at the power grid construction project site. Each set of temporary power supply routes has at least one starting point and one ending point, and each set of temporary power supply routes covers all power consumption nodes. The total construction cost of each set of temporary power supply routes is then calculated. The temporary power supply route with the lowest total construction cost is recorded as the optimal route for temporary power supply circuits at the power grid construction project site, and each set of temporary power supply routes with a total construction cost lower than the budget information is recorded as a backup power supply route.

[0028] It should be noted that the starting point of the power supply (temporary transformer or municipal power, etc.) is determined through on-site surveys, the ending point of the power supply, the location of each power consumption node and distribution box is obtained through building information and power grid construction information, environmental information is used to ensure that the power supply point and each power consumption node avoid obstacles and dangerous areas, and the specifications of cables and distribution boxes are determined based on material information and equipment information.

[0029] Step 3: On-site safety analysis: During the construction of the power grid project, the construction site is monitored to obtain the various moments of impact on the temporary power supply circuit, and then to obtain the various impact events at each moment of impact. The impact of each impact event on the temporary circuit is analyzed, and the safety of the temporary power supply circuit at the power grid construction project site is assessed accordingly.

[0030] In a specific example, the monitoring of the construction site during the power grid project construction process is carried out as follows: the site is divided into construction area and living area based on the building information of the power grid construction project site. The 24-hour period is divided according to the power grid construction information to obtain the construction monitoring time period for the construction area and the living monitoring time period for the living area. During the construction monitoring time period, the dynamic information of the construction area is monitored, and the static information of the living area is monitored at the same time. During the living monitoring time period, the dynamic information of the living area is monitored, and the static information of the construction area is monitored at the same time.

[0031] For example, when the building information clearly states that 0:00-6:00, 11:00-14:00 and 18:00-0:00 are non-construction periods, and 6:00-11:00 and 14:00-18:00 are construction periods, then the 24 hours are divided into 5 monitoring periods.

[0032] It should be noted that static information includes the location, quantity, and appearance of materials, equipment, and buildings; dynamic information includes personnel movement (quantity and location, etc.) and equipment movement (equipment movement, technical parameters, and operating status, etc.).

[0033] It should also be noted that static information is monitored using high-definition cameras, infrared devices, and GPS positioning tags; dynamic information is monitored using high-definition cameras, radar sensors, and mechanical condition monitoring sensors.

[0034] In a specific example, the specific analysis process for obtaining the various impact moments on the temporary power supply circuit at the construction site is as follows: When monitoring static information, the monitoring start time is recorded as an impact moment. If changes in static information are subsequently monitored, each change moment is recorded as an impact moment.

[0035] When monitoring dynamic information, the dynamic information is processed into a time series, and each time series point is recorded as an influencing moment.

[0036] In a specific example, the process of obtaining each influencing event at each influencing moment is as follows: obtain the influencing action at each influencing moment, compare the influencing action at each influencing moment with a set of influencing actions, if the influencing action at a certain influencing moment does not belong to the set of influencing actions, then the influencing action at that influencing moment is recorded as an influencing event, otherwise if the influencing action at a certain influencing moment belongs to the set of influencing actions, then the influencing action at that influencing moment is recorded as an influencing event, and thus obtain each influencing event.

[0037] It should be noted that the set of actions affecting the system is determined by relevant personnel based on the route and structure of the temporary power supply circuit, and no specific restrictions are imposed here.

[0038] In a specific example, the analysis of the impact of each influencing event on the temporary circuit, and the assessment of the safety of the temporary power supply circuit at the site of the power grid construction project, is carried out as follows: The impact data corresponding to each influencing event is obtained, and the influencing events and their corresponding impact data are input into a digital twin model. The impact results of each influencing event on the temporary power supply circuit are obtained through the digital twin model. When an influencing event affects the power supply circuit, the safety characteristic value of the temporary power supply circuit associated with that event is recorded as 11; conversely, when an influencing event does not affect the temporary power supply circuit, the safety characteristic value of the temporary power supply circuit associated with that event is recorded as 10.

[0039] It should be noted that the digital twin model is prior art, and the device information, material information, building information, budget information and power grid construction information of the power grid construction project site and the structure of the temporary power supply circuit are matched and restored according to 1:1 with the data in the digital twin model, and the model environment data is calibrated according to the preset period according to the environmental information of the project site, and the influence relationship of the temporary power supply circuit is established (for example, electric welding sparks splash the cable, causing the cable insulation to burn; heavy equipment close to the cable laying area causes the cable to break and short circuit, etc.), to ensure the accuracy of the physical mapping.

[0040] Exemplarily, when the input influence event is heavy vehicle rolling on the cable protection pipe, the influence event, vehicle weight, rolling speed and rolling time are input, the digital twin model calls the material mechanics simulation, based on the vehicle weight, rolling speed and rolling time, the pressure of the vehicle on the cable protection pipe is obtained, the material parameters of the cable protection pipe are compared, the compression threshold of the cable protection pipe is obtained, and the influence result is output, for example, when the vehicle pressure is greater than or equal to the compression threshold of the cable protection pipe, the influence result is cable breakage or short circuit according to the influence relationship of the temporary power supply circuit; when the vehicle pressure is less than the compression threshold of the cable protection pipe, the influence result is no influence.

[0041] It should be noted that when the safety characteristic value of the temporary power supply circuit is 11, the relevant staff are immediately warned to take appropriate measures.

[0042] Step four, equipment safety analysis: according to the equipment information of the power grid construction project, each target monitoring equipment is analyzed, and the safety of each target monitoring equipment in different states is evaluated.

[0043] In a specific example, the target monitoring equipment is analyzed according to the equipment information of the power grid construction project, and the specific analysis process is as follows: according to the equipment information of the power grid construction project, each construction equipment type is obtained, each construction equipment type is compared with the set risk equipment set, each construction equipment belonging to the risk equipment set is recorded as each target monitoring equipment, and each construction equipment not belonging to the risk equipment set is recorded as each non-target monitoring equipment.

[0044] It should be noted that the risk equipment set includes electric construction equipment carrying residual risk and equipment directly related to the temporary power supply circuit, wherein the electric construction equipment carrying residual risk is, for example, electric welding machine, steel cutting machine, concrete mixing equipment and electric hoist equipment, etc., which carries dangerous components, or has large power, and personnel close to the equipment during startup are easy to be cut or involved, and the equipment directly related to the temporary power supply circuit includes distribution box and transformer, etc.

[0045] In one specific example, the safety assessment of each target monitoring device in different states is performed as follows: when a target monitoring device is in a shutdown state, the number of people within a first safety threshold distance of the target monitoring device is monitored, and when the number of people within the first safety threshold distance of the target monitoring device is greater than 0, the number of people within a safety threshold distance of the power supply of the target monitoring device is detected, and when the number of people within the safety threshold distance of the power supply of the target monitoring device is greater than 0, the safety feature value of the target monitoring device is recorded as 1; otherwise, when the number of people within the safety threshold distance of the power supply of the target monitoring device is 0, the safety feature value of the target monitoring device is recorded as -1; when the number of people within the first safety threshold distance of the target monitoring device is 0, the safety feature value of the target monitoring device is recorded as -1.

[0046] When a target monitoring device is in a construction state, the number of people within a second safety threshold distance of the target monitoring device is detected, and when the number of people within the second safety threshold distance of the target monitoring device is greater than a set number threshold, the safety feature value of the target monitoring device is recorded as 1, otherwise, when the number of people within the second safety threshold distance of the target monitoring device is less than or equal to the set number threshold, the safety feature value of the target monitoring device is recorded as -1.

[0047] It should be noted that the first safety threshold distance, the power supply safety threshold distance, and the second safety threshold distance are all set by relevant personnel according to the type of the target monitoring device, and are not specifically limited here.

[0048] Wherein, when the safety feature value is 1, it indicates that the target monitoring device is unsafe within the safety threshold distance, and when the safety feature value is -1, it indicates that the target monitoring device is safe within the safety threshold distance.

[0049] Referring to Figure 2 The present application provides, in a second aspect, a safety assessment system for a power grid construction site, comprising the following modules: an information acquisition module for detecting and acquiring environmental information, equipment information, material information, building information, budget information, and power grid construction information of the power grid construction site before the power grid construction project is started.

[0050] A temporary circuit building module is configured to analyze the best building route of a temporary power supply circuit based on the environmental information, equipment information, material information, building information, budget information, and power grid construction information of the power grid construction site, and to build the temporary power supply circuit of the power grid construction project based on the best building route.

[0051] The on-site safety analysis module is used for monitoring the construction site in the process of the power grid project construction, obtaining each influence moment of the temporary power supply circuit in the construction site, further obtaining each influence event of each influence moment, analyzing the influence of each influence event on the temporary circuit, and evaluating the safety of the temporary power supply circuit of the power grid construction project site.

[0052] The equipment safety analysis module is used for obtaining each target monitoring equipment according to the equipment information of the power grid construction project, and performing safety evaluation on each target monitoring equipment in different states.

[0053] The above content is only an example and description of the concept of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined in the present application.

Claims

1. A method for on-site safety assessment of power grid construction projects, characterized in that, include: Step 1: Information Acquisition: Before the commencement of a power grid construction project, detect and acquire environmental information, equipment information, material information, building information, budget information, and power grid construction information at the project site; Step 2: Temporary circuit construction: Based on the environmental information, equipment information, material information, building information, budget information, and power grid construction information at the power grid construction site, analyze the optimal construction route for the temporary power supply circuit, and then construct the temporary power supply circuit for the power grid construction project based on the optimal construction route. Step 3: On-site safety analysis: During the construction of the power grid project, the construction site is monitored to obtain the time of each impact on the temporary power supply circuit, and then to obtain the impact events at each impact time. The impact of each impact event on the temporary circuit is analyzed, and the safety of the temporary power supply circuit at the power grid construction project site is assessed accordingly. Step 4: Equipment Safety Analysis: Based on the equipment information of the power grid construction project, the monitoring equipment for each target is obtained, and a safety assessment is conducted on the monitoring equipment for each target under different conditions.

2. The method for on-site safety assessment of power grid construction projects according to claim 1, characterized in that, The environmental information includes natural environment data and ecological protection requirements; equipment information includes basic equipment information and technical parameters; material information includes basic material information and material supply information; building information includes building information related to the power grid construction project and surrounding building information; budget information indicates the construction budget for temporary power supply circuits; and power grid construction information includes current power grid construction information and surrounding historical power grid information.

3. The method for on-site safety assessment of power grid construction projects according to claim 2, characterized in that, Based on the environmental information, equipment information, material information, building information, budget information, and power grid construction information at the power grid construction site, the optimal route for constructing the temporary power supply circuit is determined. The specific analysis process is as follows: First, based on the environmental, building, and power grid construction information at the power grid construction site, the expected starting and ending points of each power source for the temporary power supply circuit are obtained. Simultaneously, each power consumption node at the power grid construction site is also obtained, leading to the formation of various temporary power supply routes at the power grid construction site. Each temporary power supply route must have at least one power source starting point and one power source ending point, and each temporary power supply route must cover all power consumption nodes. The total construction cost of each temporary power supply route is then calculated. The temporary power supply route with the lowest total construction cost is recorded as the optimal route for constructing the temporary power supply circuit at the power grid construction site, and each temporary power supply route with a total construction cost lower than the budget information is recorded as a backup power supply route.

4. The method for on-site safety assessment of power grid construction projects according to claim 3, characterized in that, The monitoring of the construction site during the power grid project construction process is as follows: Based on the building information at the power grid construction site, the site is divided into construction area and living area. Based on the power grid construction information, a 24-hour period is divided to obtain the construction monitoring time period for the construction area and the living monitoring time period for the living area. During the construction monitoring time period, the dynamic information of the construction area is monitored, and the static information of the living area is monitored at the same time. During the living monitoring time period, the dynamic information of the living area is monitored, and the static information of the construction area is monitored at the same time.

5. The method for on-site safety assessment of power grid construction projects according to claim 4, characterized in that, The specific analysis process for obtaining the moments when each factor affects the temporary power supply circuit at the construction site is as follows: When monitoring static information, the starting time of monitoring is recorded as an impact time. If changes in static information are subsequently detected, each change time is recorded as an impact time. When monitoring dynamic information, the dynamic information is processed into a time series, and each time series point is recorded as an influencing moment.

6. The method for on-site safety assessment of power grid construction projects according to claim 5, characterized in that, The specific process for obtaining each influencing event at each influencing moment is as follows: Based on the impact time, obtain the impact actions at each impact time, compare the impact actions at each impact time with the set impact action set. If the impact action at a certain impact time does not belong to the set impact action set, then the impact action at that impact time is recorded as an event with no impact. Conversely, if the impact action at a certain impact time belongs to the set impact action set, then the impact action at that impact time is recorded as an impact event. Based on this, obtain each impact event.

7. The method for on-site safety assessment of power grid construction projects according to claim 6, characterized in that, The analysis of the impact of various influencing events on temporary circuits is used to assess the safety of temporary power supply circuits at the power grid construction project site. The specific analysis process is as follows: Based on the impact events, obtain the impact data corresponding to each impact event, input each impact event and its corresponding impact data into the digital twin model, and obtain the impact results of each impact event on the temporary power supply circuit through the digital twin model. When an impact event has an impact on the power supply circuit, the safety characteristic value of the temporary power supply circuit associated with the impact event is recorded as 11, and conversely, when an impact event has no impact on the temporary power supply circuit, the safety characteristic value of the temporary power supply circuit associated with the impact event is recorded as 10.

8. The method for on-site safety assessment of power grid construction projects according to claim 7, characterized in that, The specific analysis process for obtaining the target monitoring equipment based on the equipment information of the power grid construction project is as follows: Based on the equipment information of the power grid construction project, obtain the types of construction equipment, compare each type of construction equipment with the set of risk equipment, and record each construction equipment that belongs to the risk equipment set as the target monitoring equipment, and record each construction equipment that does not belong to the risk equipment set as the non-target monitoring equipment.

9. A method for on-site safety assessment of power grid construction projects according to claim 8, characterized in that, The specific process for conducting safety assessments on the monitoring equipment for each target under different conditions is as follows: When a target monitoring device is in a stopped state, the number of people within the first safety threshold distance of the target monitoring device is monitored. When the number of people within the first safety threshold distance of the monitoring device is greater than 0, the number of people within the safety threshold distance of the power supply of the target monitoring device is detected. When the number of people within the safety threshold distance of the power supply of the target monitoring device is greater than 0, the safety characteristic value of the target monitoring device is recorded as 1; conversely, when the number of people within the safety threshold distance of the power supply of the target monitoring device is 0, the safety characteristic value of the target monitoring device is recorded as -1; when the number of people detected within the first safety threshold distance of the target monitoring device is 0, the safety characteristic value of the target monitoring device is recorded as -1. When a target detection device is under construction, it detects the number of people within the second safety threshold distance of the target detection device. When the number of people within the second safety threshold distance of the target detection device is greater than the set number threshold, the safety feature value of the target detection device is recorded as 1. Conversely, when the number of people within the second safety threshold distance of the target detection device is less than or equal to the set number threshold, the safety feature value of the target detection device is recorded as -1. When the safety feature value is 1, it indicates that the monitoring device is not safe within the safety threshold distance. When the safety feature value is -1, it indicates that the target monitoring device is safe within the safety threshold distance.

10. A safety assessment system for power grid construction projects, employing the safety assessment method for power grid construction projects as described in any one of claims 1-9, characterized in that, include: Information Acquisition Module: Used to detect and acquire environmental information, equipment information, material information, building information, budget information, and power grid construction information at the power grid construction site before the commencement of the power grid construction project; Temporary circuit construction module: It is used to analyze the environmental information, equipment information, material information, building information, budget information and power grid construction information of the power grid construction project site to obtain the optimal construction route of the temporary power supply circuit, and then construct the temporary power supply circuit of the power grid construction project based on the optimal construction route; On-site safety analysis module: used to monitor the construction site during the construction of power grid projects, thereby obtaining the time of each impact on the temporary power supply circuit, and then obtaining the impact events at each impact time, so as to analyze the impact of each impact event on the temporary circuit, and thus assess the safety of the temporary power supply circuit at the construction site of the power grid project. Equipment safety analysis module: It is used to analyze the equipment information of power grid construction projects to obtain the monitoring equipment of each target, and to conduct safety assessments of the monitoring equipment of each target under different conditions.

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