Method, device, computer equipment and storage medium for determining live safety area

Abstract

The present application relates to a method, device, computer equipment and storage medium for determining a live safety area. The method includes: obtaining a three-dimensional structural model corresponding to a substation and a live safety distance of a target device in the substation, wherein the three-dimensional structural model includes at least a device model of each device in the substation; when the target device is powered on, the outer contour of the device model of the target device in the three-dimensional structural model is expanded according to the live safety distance to obtain the expanded three-dimensional structural model; the live safety area of ​​the target device is determined according to the expanded three-dimensional structural model, and the live safety area is used to characterize the safe operating range corresponding to the target device. The use of this method can improve the efficiency of determining the live safety area.

Description

Technical Field

[0001] The present application relates to the field of power systems, and in particular to a method, device, computer equipment and storage medium for determining a live safety area. Background Art

[0002] In normal operation, the voltage of live parts such as high-voltage lines and high-voltage live equipment in substations is often several thousand volts, tens of thousands of volts or even hundreds of thousands of volts. In order to prevent electric shock caused by human body touching or getting too close to live parts, accidents caused by collision with or getting too close to live parts by vehicles and other objects, and fire and electrical accidents caused by discharge and short circuit between live parts due to close distance, it is required to maintain a certain safety distance between people and live parts, between live parts and live parts, between live parts and the ground, and between live parts and other objects in substations.

[0003] In the prior art, manual measurement is usually used to determine the live safety area of ​​live objects in the substation when the substation is powered off.

[0004] However, the above manual measurement method consumes a lot of time and the efficiency of live safety area measurement is relatively low. Summary of the invention

[0005] Based on this, it is necessary to provide a method, device, computer equipment and storage medium for determining a live safety area that can improve the efficiency of measuring live safety areas in response to the above technical problems.

[0006] In a first aspect, a method for determining a live safety area is provided, the method comprising:

[0007] Obtaining a three-dimensional structural model corresponding to the substation and a live safety distance of a target device in the substation, wherein the three-dimensional structural model at least includes a device model of each device in the substation;

[0008] When the target device is powered on, the outer contour of the device model of the target device in the three-dimensional structure model is expanded according to the live safety distance to obtain the expanded three-dimensional structure model;

[0009] The live safety area of ​​the target device is determined according to the expanded three-dimensional structural model, and the live safety area is used to characterize the safe operating range corresponding to the target device.

[0010] In one embodiment, the outer contour of the device model of the target device in the three-dimensional structure model is expanded according to the live safety distance to obtain the expanded three-dimensional structure model, including:

[0011] Performing model simplification processing on the three-dimensional structural model to obtain a simplified three-dimensional structural model;

[0012] According to the live safety distance, the outer contour of the device model of the target device in the simplified three-dimensional structural model is expanded to obtain the expanded three-dimensional structural model.

[0013] In one embodiment, the three-dimensional structure model is simplified to obtain a simplified three-dimensional structure model, including:

[0014] Acquire model parameters of the three-dimensional structure model, where the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model;

[0015] According to the model parameters and the preset simplification level, the three-dimensional structural model is simplified to obtain the simplified three-dimensional structural model. Different simplification levels indicate different degrees of model simplification.

[0016] In one embodiment, the three-dimensional structure model is simplified according to the model parameters and the preset simplification level to obtain the simplified three-dimensional structure model, including:

[0017] According to the model parameters and the preset vertex collapse algorithm, the retention weight value of the outer contour vertex is calculated;

[0018] Compare the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determine the outer contour vertex to be retained according to the first comparison result;

[0019] The three-dimensional structure model is updated according to the outer contour vertices to be retained to obtain a simplified three-dimensional structure model.

[0020] In one embodiment, according to the live safety distance, the outer contour of the device model of the target device in the simplified three-dimensional structure model is expanded to obtain the expanded three-dimensional structure model, including:

[0021] Acquire model parameters of the three-dimensional structure model, where the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model;

[0022] The outer contour vertices included in the simplified three-dimensional structure model are used as vertices of the simplified three-dimensional structure model;

[0023] Determine target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertex and the simplified three-dimensional structure model;

[0024] In the simplified three-dimensional structure model, according to the target contour vertex information, the contour vertex information of the device model of the target device is determined;

[0025] The outer contour of the device model of the target device is expanded according to the live safety distance and the contour vertex information of the device model of the target device to obtain the expanded device model.

[0026] In one embodiment, determining target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertex and the simplified three-dimensional structure model includes:

[0027] When the relative position relationship is that the vertex is located inside the simplified three-dimensional structure model, deleting the vertex in the simplified three-dimensional structure model;

[0028] When the relative position relationship is that the vertex is not located inside the simplified three-dimensional structure model, the vertex is retained in the simplified three-dimensional structure model;

[0029] The vertex information of the final vertex is used as the target contour vertex information.

[0030] In one embodiment, the method further comprises:

[0031] Acquire power data of a target device, where the power data includes at least one of voltage, current, and power of the target device;

[0032] The power data is compared with a preset power parameter threshold to obtain a second comparison result, and based on the second comparison result, it is determined whether the target device is powered on.

[0033] In one embodiment, the method further comprises:

[0034] Based on the live safety area, determine whether there is a situation for safety warning. If so, output the preset alarm signal.

[0035] In a second aspect, a device for determining a live safety area is provided, the device comprising:

[0036] An acquisition module is used to acquire a three-dimensional structural model corresponding to the substation and a live safety distance of a target device in the substation, wherein the three-dimensional structural model at least includes a device model of each device in the substation;

[0037] The expansion module is used to expand the outer contour of the device model of the target device in the three-dimensional structure model according to the live safety distance when the target device is powered on, so as to obtain the expanded three-dimensional structure model;

[0038] The determination module is used to determine the live safety area of ​​the target device according to the expanded three-dimensional structural model, and the live safety area is used to characterize the safe operating range corresponding to the target device.

[0039] In one embodiment, the expansion module is specifically used for:

[0040] Performing model simplification processing on the three-dimensional structural model to obtain a simplified three-dimensional structural model;

[0041] According to the live safety distance, the outer contour of the device model of the target device in the simplified three-dimensional structural model is expanded to obtain the expanded three-dimensional structural model.

[0042] In one embodiment, the expansion module is further used to:

[0043] Acquire model parameters of the three-dimensional structure model, where the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model;

[0044] According to the model parameters and the preset simplification level, the three-dimensional structural model is simplified to obtain the simplified three-dimensional structural model. Different simplification levels indicate different degrees of model simplification.

[0045] In one embodiment, the expansion module is further used to:

[0046] According to the model parameters and the preset vertex collapse algorithm, the retention weight value of the outer contour vertex is calculated;

[0047] Compare the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determine the outer contour vertex to be retained according to the first comparison result;

[0048] The three-dimensional structure model is updated according to the outer contour vertices to be retained to obtain a simplified three-dimensional structure model.

[0049] In one embodiment, the expansion module is further used to:

[0050] Acquire model parameters of the three-dimensional structure model, where the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model;

[0051] The outer contour vertices included in the simplified three-dimensional structure model are used as vertices of the simplified three-dimensional structure model;

[0052] Determine target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertex and the simplified three-dimensional structure model;

[0053] In the simplified three-dimensional structure model, according to the target contour vertex information, the contour vertex information of the device model of the target device is determined;

[0054] The outer contour of the device model of the target device is expanded according to the live safety distance and the contour vertex information of the device model of the target device to obtain the expanded device model.

[0055] In one embodiment, the expansion module is further used to:

[0056] When the relative position relationship is that the vertex is located inside the simplified three-dimensional structure model, deleting the vertex in the simplified three-dimensional structure model;

[0057] When the relative position relationship is that the vertex is not located inside the simplified three-dimensional structure model, the vertex is retained in the simplified three-dimensional structure model;

[0058] The vertex information of the final vertex is used as the target contour vertex information.

[0059] In one embodiment, the device further comprises:

[0060] The judgment module is used to obtain power data of the target device, the power data including at least one of the voltage, current and power of the target device; compare the power data with a preset power parameter threshold to obtain a second comparison result, and judge whether the target device is powered on based on the second comparison result.

[0061] In one embodiment, the device further comprises:

[0062] The early warning module is used to determine whether there is a situation for safety warning based on the live safety area. If so, it outputs a preset alarm signal.

[0063] In a third aspect, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the method for determining a live safety area as described in the first aspect above is implemented.

[0064] In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the method for determining a live safety area as described in the first aspect above is implemented.

[0065] The above-mentioned method, device, computer equipment and storage medium for determining the live safety area obtain the three-dimensional structural model corresponding to the substation and the live safety distance of the target equipment in the substation. When the target equipment is powered on, the outer contour of the equipment model of the target equipment in the three-dimensional structural model is expanded according to the live safety distance to obtain the expanded three-dimensional structural model. In this way, the live safety area of ​​the target equipment can be determined according to the expanded three-dimensional structural model. The live safety area is used to characterize the safe operating range corresponding to the target equipment, thereby eliminating the need to manually measure the live safety area when the substation is powered off. The embodiment of the present application realizes the automatic determination of the live safety area by means of model simulation, thereby improving the efficiency of the live safety area measurement. In addition, the embodiment of the present application determines the live safety area of ​​the target equipment when the target equipment is powered on, and determines the live safety range of the substation corresponding to the current power-on status according to the real-time power-on status of the equipment in the substation, thereby realizing real-time determination of the live safety range of the substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 A schematic diagram of a flow chart of a method for determining a live safety area in one embodiment;

[0067] Figure 2 is a flow chart of step 102 in one embodiment;

[0068] Figure 3 is a flow chart of step 201 in one embodiment;

[0069] Figure 4 is a flow chart of step 302 in one embodiment;

[0070] Figure 5 is a flow chart of step 202 in one embodiment;

[0071] Figure 6 A schematic diagram of a flow chart of a method for determining a live safety area in one embodiment;

[0072] Figure 7 A schematic diagram of a flow chart of a method for determining a live safety area in one embodiment;

[0073] Figure 8 It is a structural block diagram of a device for determining a live safety area in one embodiment;

[0074] Fig. 9 It is a structural block diagram of a device for determining a live safety area in one embodiment;

[0075] Fig.10 It is a structural block diagram of a device for determining a live safety area in one embodiment;

[0076] Fig.11 A platform architecture diagram of a device for determining a live safety area in one embodiment;

[0077] Fig.12 A platform architecture diagram of a device for determining a live safety area in one embodiment;

[0078] Fig.13 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0079] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0080] In normal operation, the voltage of live parts such as high-voltage lines and high-voltage live equipment in substations is often several thousand volts, tens of thousands of volts or even hundreds of thousands of volts. In order to prevent electric shock caused by human body touching or getting too close to live parts, accidents caused by collision with or getting too close to live parts by vehicles and other objects, and fire and electrical accidents caused by discharge and short circuit between live parts due to close distance, it is required to maintain a certain safety distance between people and live parts, between live parts and live parts, between live parts and the ground, and between live parts and other objects in substations.

[0081] In the prior art, manual measurement is usually used to determine the live safety area of ​​live objects in the substation when the substation is powered off.

[0082] However, when manually measuring the live range, the substation needs to be powered off, which will affect the operation of the substation. In addition, manual measurement will consume a lot of measurement time, and the measurement efficiency of the live safety area is relatively low.

[0083] In view of this, an embodiment of the present application provides a method for determining a live safety area to achieve automatic determination of a live safety area.

[0084] It should be noted that the live safety area determination method provided in the embodiment of the present application can be executed by a live safety area determination device, and the live safety area determination method can be implemented as part or all of the terminal through software, hardware, or a combination of software and hardware.

[0085] In the following method embodiments, the execution subject is taken as an example to illustrate, wherein the terminal can be a personal computer, a laptop computer, a media player, a smart TV, a smart phone, a tablet computer, and a portable wearable device, etc. It can be understood that the method can also be applied to a server, and can also be applied to a system including a terminal and a server, and is implemented through the interaction between the terminal and the server.

[0086] Please refer to Figure 1 , which shows a flow chart of a method for determining a live safety area provided by an embodiment of the present application. Figure 1 As shown, the method for determining a live safety area may include the following steps:

[0087] Step 101, obtaining a three-dimensional structural model corresponding to a substation and a live safety distance of a target device in the substation.

[0088] Among them, different equipment has different live safety distances. The live safety distance includes the minimum safety distance, the minimum ground safety distance, the minimum phase-to-phase safety distance, the minimum safe working distance and the minimum combined gap. Among them, the minimum safety distance refers to the minimum distance that should be maintained between ground potential workers and live bodies; the minimum ground safety distance refers to the minimum distance that should be maintained between equal potential workers on live bodies and the surrounding grounding bodies; the minimum phase-to-phase safety distance refers to the minimum distance that should be maintained between workers on live bodies and adjacent phase live bodies; the minimum safe working distance refers to the minimum distance that should be maintained between ground potential workers and live bodies during the operation process in order to ensure personal safety and taking into account the necessary activities at work; the minimum combined gap refers to the sum of the distances that should be maintained between the human body and the grounding body and the live body when the worker in the combined gap is at the lowest 50 operating impulse discharge voltage position. The above-mentioned live safety distances are all stipulated in the "Electric Power Safety Work Regulations".

[0089] Optionally, the live safety distance is related to the voltage and type of the equipment. For example, when the voltage is 10kV and below, the live safety distance is 0.7m, when the voltage is 10kV-35kV, the live safety distance is 1.0m, when the voltage is 35KV-110KV, the live safety distance is 1.5m, when the voltage is 110kV-220kV, the live safety distance is 3.0m, and so on.

[0090] Optionally, the live safety distance includes a first-level live safety distance, a second-level live safety distance, and a third-level live safety distance. The terminal sets multiple levels of live safety distances for the device, and different alarm methods correspond to different levels of live safety.

[0091] Optionally, a mapping table between equipment and live safety distance is stored in the terminal. The terminal can obtain the live safety distance corresponding to the equipment by looking up the table. In another optional implementation, crawler technology can be used to obtain the live safety distance corresponding to the equipment from the Internet.

[0092] In the embodiment of the present application, the three-dimensional structural model includes at least a device model of each device in the substation.

[0093] Optionally, the terminal captures the image information of the substation, and uses the laser radar measurement technology to collect the 3D laser radar point cloud data of the substation. A 3D structural model corresponding to the substation is constructed based on the image information and the 3D laser radar point cloud data.

[0094] Optionally, the terminal captures the image information of the substation, and obtains the equipment and spatial data of the equipment included in the substation based on the image information. The terminal downloads the corresponding three-dimensional model of each equipment from the cloud, and constructs the corresponding three-dimensional structure model of the substation in combination with the spatial data of the equipment.

[0095] Optionally, the three-dimensional structural model corresponding to the substation is stored in the terminal or the cloud. The terminal stores the storage path information of the three-dimensional structural model. When the three-dimensional structural model needs to be obtained, the terminal calls the three-dimensional structural model according to the storage path information.

[0096] Optionally, the terminal sends a request instruction for the three-dimensional structure model to the cloud, and the cloud receives the request instruction and transmits the three-dimensional structure model to the terminal based on the request instruction.

[0097] Step 102 , when the target device is powered on, the outer contour of the device model of the target device in the three-dimensional structure model is expanded according to the live safety distance to obtain the expanded three-dimensional structure model.

[0098] The energized equipment in the substation is determined, and the equipment model corresponding to the energized equipment is used as the equipment model of the target equipment.

[0099] Optionally, the terminal collects a real-time current value of the target device, and when the real-time current value is not 0, it is determined that the target device is powered on.

[0100] Optionally, the terminal loads a toolkit developed by Unity3D, and uses the toolkit to obtain the outer contour information of the three-dimensional structure model. The outer contour information includes the vertex coordinates of the model and the normal vectors of the model's vertices on the constructed surface. The terminal uses the meshFilter.mesh.vertices function of the toolkit developed by Unity3D to read the vertex coordinate information of the model, and uses the meshFilter.mesh.normals function to obtain the normal vector of the model.

[0101] Optionally, the outer contour of the device model of the target device in the three-dimensional structure model is expanded according to the vertex coordinates, the normal vector and the live safety distance.

[0102] Specifically, the ratio coefficient between the size of the equipment model and the actual size of the equipment is obtained. According to the ratio coefficient, the distance corresponding to the live safety distance in the model is obtained, and for each vertex coordinate, the corresponding distance is translated outward in the direction of the normal vector to obtain the translated vertex coordinate. According to the translated vertex coordinate, the expanded three-dimensional structure model is obtained.

[0103] Step 103: determine the live safety area of ​​the target device according to the expanded three-dimensional structural model.

[0104] Among them, the live safety area is used to characterize the safe operating range corresponding to the target equipment.

[0105] Optionally, the terminal uses the acquisition device in the substation to obtain the spatial location information of the equipment in the substation, wherein the acquisition device includes a camera and a UWB positioning device. The terminal selects one of the edges from the three-dimensional structure model as a reference edge and obtains the vertex coordinates of the reference edge, receives the manually input coordinate information of the reference edge of the three-dimensional structure model and the spatial coordinate information corresponding to the reference edge, and can use the reference edge as a reference to determine the corresponding substation area in the three-dimensional structure model according to the spatial location information of the equipment. The substation area outside this area is regarded as the live safety area of ​​the target equipment.

[0106] Optionally, a relationship table between the model and device identification information of the equipment in the three-dimensional structure model is stored in the terminal. The terminal uses the acquisition device in the substation to obtain the spatial position information of the equipment in the substation, wherein the acquisition device includes a camera or a UWB positioning device, and obtains the device identification information of the acquisition device. Using the device identification information, a correspondence between the three-dimensional structure model and the real substation structure is established. After obtaining the identification information of the target device, the substation area corresponding to the expanded three-dimensional structure model is determined according to the correspondence between the three-dimensional structure model and the real substation structure. The substation area outside this area is used as the energized safe area of ​​the target device.

[0107] This embodiment obtains the three-dimensional structural model corresponding to the substation and the live safety distance of the target equipment in the substation, and when the target equipment is powered on, expands the outer contour of the equipment model of the target equipment in the three-dimensional structural model according to the live safety distance to obtain the expanded three-dimensional structural model. In this way, according to the expanded three-dimensional structural model, the live safety area of ​​the target equipment can be determined, and the live safety area is used to characterize the safe operating range corresponding to the target equipment, so that there is no need to manually measure the live safety area when the substation is powered off. The embodiment of the present application realizes the automatic determination of the live safety area by means of model simulation, thereby improving the efficiency of the measurement of the live safety area. In addition, the embodiment of the present application determines the live safety area of ​​the target equipment when the target equipment is powered on, and determines the live safety range of the substation corresponding to the current power-on status according to the real-time power-on status of the equipment in the substation, thereby realizing real-time determination of the live safety range of the substation.

[0108] In the implementation of this application, see Figure 2 ,based on Figure 1 The embodiment shown in the figure involves expanding the outer contour of the device model of the target device in the three-dimensional structure model according to the live safety distance in step 102 to obtain the expanded three-dimensional structure model, including step 201 and step 202:

[0109] Step 201 , performing model simplification processing on the three-dimensional structure model to obtain a simplified three-dimensional structure model.

[0110] Optionally, for each three-dimensional structure model, the terminal stores multiple types of three-dimensional structure models, wherein each type of three-dimensional structure model corresponds to a different file size. The terminal can determine the required simplified three-dimensional structure model according to the file size.

[0111] Optionally, the terminal stores simplification levels and corresponding model simplification functions. The terminal receives the simplification level input by the user and determines the corresponding model simplification function according to the simplification level, and performs model simplification processing on the three-dimensional structure model according to the model simplification function to obtain the simplified three-dimensional structure model.

[0112] Step 202 , according to the live safety distance, the outer contour of the device model of the target device in the simplified three-dimensional structure model is expanded to obtain the expanded three-dimensional structure model.

[0113] The expansion processing method is the same as the processing method in the above step 102, and will not be described here.

[0114] The embodiment of the present application obtains a simplified three-dimensional structural model by simplifying the three-dimensional structural model, and expands the outer contour of the device model of the target device in the simplified three-dimensional structural model according to the live safety distance to obtain the expanded three-dimensional structural model. By simplifying the three-dimensional model, the calculation cost is reduced and the processing efficiency of the algorithm is improved.

[0115] In this application example, reference is made to Figure 3 ,based on Figure 2 In the embodiment shown, the above step 201 performs model simplification processing on the three-dimensional structure model to obtain the simplified three-dimensional structure model, including step 301 and step 302:

[0116] Step 301: Obtain model parameters of a three-dimensional structure model.

[0117] The model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model.

[0118] Among them, the model parameters are obtained from the model itself using a program. The main parameters include the model's material, the model's vertices, the order of all vertices constituting the same face, the vertex set between the faces constituting the model, the relationship between the faces in the model, the face set constituting the model, the model's vertex rendering unit, the model's rendering fragments, and the normal vectors of the model's vertices on the constructed face.

[0119] Optionally, the terminal loads a toolkit developed by Unity3D, and uses the meshFilter.mesh.vertices function of the toolkit developed by Unity3D to read the coordinate information of the outer contour vertices of the model, and uses the obtained coordinate information of the outer contour vertices as parameter information of the outer contour vertices.

[0120] Step 302: Simplify the three-dimensional structure model according to the model parameters and the preset simplification level to obtain a simplified three-dimensional structure model.

[0121] Among them, different simplification levels indicate different degrees of model simplification.

[0122] Optionally, the simplification level may be obtained by a user inputting via an input device or by the terminal automatically calculating the simplification level.

[0123] Optionally, the implementation method of automatically calculating the simplification level by the terminal includes: the terminal can correspond to the simplification level according to the usage scenario parameters of the three-dimensional structure model, wherein the usage scenario parameter type includes the device type and the original file size of the three-dimensional structure model, etc. In one implementation method, the weight corresponding to each usage scenario parameter type is obtained to obtain multiple weights, the multiple weights are summed to obtain a final weight, and the simplification level is determined according to the final weight.

[0124] Optionally, the three-dimensional structure is simplified, including: deleting a portion of outer contour vertices, and using the outer contour vertices that remain to generate a simplified three-dimensional structure model.

[0125] Optionally, the terminal is provided with multiple simplification levels, including level 1, level 2, and level 3. For different simplification levels, the terminal stores corresponding threshold information of outer contour vertices. The threshold information includes: the number of outer contour vertices and the retention weight of the outer contour vertices. Using the threshold information, a part of the outer contour vertices is deleted, and the outer contour vertices that are finally retained are used to generate a simplified three-dimensional structure model.

[0126] The embodiment of the present application simplifies the three-dimensional structure model according to the model parameters and the preset simplification level to obtain the simplified three-dimensional structure model. Since the corresponding simplification processing can be performed according to different simplification levels, flexible processing of model simplification is achieved, thereby improving the scope of application of the method for determining the live safety area.

[0127] In the embodiments of this application, please refer to Figure 4 ,based on Figure 3 In the embodiment shown, in the above step 302, the three-dimensional structure model is simplified according to the model parameters and the preset simplification level to obtain the simplified three-dimensional structure model, including steps 401, 402 and 403:

[0128] Step 401, calculating the retention weight values ​​of the outer contour vertices according to the model parameters and the preset vertex collapse algorithm.

[0129] Optionally, in the vertex collapse algorithm, a vertex of an edge constituting the three-dimensional structural model is selected, the length of the edge and the curvature value corresponding to the vertex are calculated, and then, based on the product of the edge length and the curvature value, the retention weight value constituting the vertex is obtained, wherein the curvature value is calculated as follows: obtain the two adjacent faces farthest from the vertex among the adjacent faces corresponding to the edge, calculate the dot product of the normals of the two adjacent faces, and the value obtained after calculating the dot product is the curvature value corresponding to the vertex.

[0130] Optionally, the calculation formula corresponding to the vertex collapse algorithm is:

[0131]

[0132] Among them, u and v are two vertices of a model edge in the model; T u refers to the set of triangular faces containing vertex u; T uv It refers to the set of triangular faces that contain both vertex u and vertex v. f.normal and n.normal represent the normal vector values ​​of the two adjacent faces corresponding to the edge formed by vertices u and v, respectively.

[0133] Optionally, the numerical value obtained by using the above calculation formula is used as the retention weight value of the outer contour vertex.

[0134] Step 402: compare the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determine the outer contour vertices to be retained according to the first comparison result.

[0135] Optionally, a mapping relationship table between simplification levels and simplification thresholds is stored in the terminal. The terminal can determine the simplification threshold according to the simplification level by looking up the table.

[0136] Optionally, the retention weight value is compared with a simplification threshold corresponding to the simplification level. When the retention weight value is greater than or equal to the simplification threshold, the outer contour vertex is retained; when the retention weight value is less than the simplification threshold, the outer contour vertex is deleted.

[0137] Step 403: updating the three-dimensional structure model according to the outer contour vertices to be retained to obtain a simplified three-dimensional structure model.

[0138] Optionally, a specific method for updating the three-dimensional structure model by deleting a certain outer contour vertex is as follows: remove all triangular faces that contain both vertex u and vertex v; update all remaining triangular faces and replace all places where vertex u is used with vertex v; remove vertex u.

[0139] This embodiment calculates the retention weight value of the outer contour vertices according to the model parameters and the preset vertex collapse algorithm, and compares the retention weight value with the simplification threshold corresponding to the simplification level to determine the outer contour vertices to be retained for generating a simplified three-dimensional structure model. This model simplification processing method can quickly determine the outer contour vertices that can be reduced, and has high data processing efficiency.

[0140] In the present application embodiment, based on Figure 2 Based on the embodiment shown, Figure 5The step 202 expands the outer contour of the device model of the target device in the simplified three-dimensional structure model according to the live safety distance to obtain the expanded three-dimensional structure model, including steps 501, 502, 503, 504 and 505:

[0141] Step 501: Obtain model parameters of a three-dimensional structure model.

[0142] The model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model.

[0143] Optionally, the terminal loads a toolkit developed by Unity3D, and uses the meshFilter.mesh.vertices function of the toolkit developed by Unity3D to read the coordinate information of the outer contour vertices of the model, and uses the obtained coordinate information of the outer contour vertices as parameter information of the outer contour vertices.

[0144] Step 502: Use the outer contour vertices included in the simplified three-dimensional structure model as the vertices of the simplified three-dimensional structure model.

[0145] Optionally, a portion of the outer contour vertices included in the original three-dimensional structure model is deleted, and the outer contour vertices that are finally retained are the vertices of the simplified three-dimensional structure model.

[0146] Step 503: Determine target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertices and the simplified three-dimensional structure model.

[0147] Optionally, some of the vertices of the simplified three-dimensional structure model may be located inside the model, and some of the vertices may be located on the surface of the model.

[0148] The vertices located on the surface of the simplified three-dimensional structure model are used as target contour vertex information of the simplified three-dimensional structure model.

[0149] Optionally, when the relative position relationship is that the vertex is located inside the simplified three-dimensional structure model, the vertex is deleted in the simplified three-dimensional structure model; when the relative position relationship is that the vertex is not located inside the simplified three-dimensional structure model, the vertex is retained in the simplified three-dimensional structure model; and the vertex information of the vertex finally obtained is used as the target contour vertex information.

[0150] Step 504: Determine contour vertex information of a device model of a target device in the simplified three-dimensional structure model according to the target contour vertex information.

[0151] Optionally, the terminal determines identification information of the target terminal device, and determines area information of the target device in the model according to the identification information, and uses target contour vertex information in the area as contour vertex information of the device model of the target device.

[0152] Step 505 , expanding the outer contour of the device model of the target device according to the live safety distance and the contour vertex information of the device model of the target device, to obtain an expanded device model.

[0153] Optionally, the method of expanding the outer contour of the model in step 505 is similar to that in step 102 and is not described in detail here.

[0154] Optionally, based on the contour vertex information of the device model of the target device, the outer contour of the device model of the target device is expanded according to the live safety distance to generate three-dimensional mesh information of the expanded device model. Then, the terminal uses the MeshRender component and the Master component in the toolkit developed by Unity3D to process the three-dimensional mesh information and finally obtain the expanded device model.

[0155] This embodiment determines the target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertices and the simplified three-dimensional structure model, so as to obtain the final generated expanded device model, further simplify the vertex information of the three-dimensional structure model, and improve the calculation effect of the method for determining the live safety area.

[0156] In the present application, please refer to Figure 6 ,based on Figure 1 In the embodiment shown, the method for determining a live safety area further includes step 601 and step 602:

[0157] Step 601, obtaining power data of a target device.

[0158] The power data of the target device includes the current voltage value, current current value, current power value, rated voltage value, rated current value, rated load value, rated power value, device manufacturer information, device model information, etc. of the target device.

[0159] Optionally, the target device is a device equipped with a monitor, and the terminal collects monitoring information of the monitor in real time to obtain power data of the target device; the monitor may be a sensor such as a voltage sensor or a current sensor.

[0160] Optionally, the monitor uploads the monitored information to the cloud in real time, and the terminal can collect the power data corresponding to the current moment from the cloud, and the power data includes at least one of the current voltage value, current current value, and current power value of the target device corresponding to the current moment.

[0161] Step 602: Compare the power data with a preset power parameter threshold to obtain a second comparison result, and determine whether the target device is powered on based on the second comparison result.

[0162] Optionally, the power data is a current voltage value of the target device. When the current voltage value of the target device is higher than a preset voltage threshold, the target device is powered on.

[0163] Optionally, the power data is a current power value of the target device. When the current power value of the target device is higher than a preset voltage threshold, the target device is powered on.

[0164] Optionally, the power data is a current current value of the target device, and when the current current value of the target device is not zero, the target device is powered on.

[0165] This embodiment obtains power data of the target device and compares the power data with a preset power parameter threshold to obtain a second comparison result, and determines whether the target device is powered on based on the second comparison result, thereby realizing the determination of the powered-on devices in the substation, so as to facilitate the subsequent real-time determination of the energized safety range of the substation.

[0166] In the embodiment of the present application, the method for determining the live safety area further includes:

[0167] Based on the live safety area, determine whether there is a situation for safety warning. If so, output the preset alarm signal.

[0168] The situation of issuing a safety warning includes: a person / vehicle / equipment is at the edge of the live safety area. Optionally, when a person / vehicle / equipment is about to leave the live safety area, the terminal outputs the alarm signal; when the person / vehicle / equipment returns to the live safety area, the alarm signal is released.

[0169] Among them, the alarm signal includes sound signal, pattern signal, animation information and text reminder information.

[0170] Optionally, the terminal may visualize the alarm information on the device model. For example, the alarm information is animation information, and the animation information is displayed at a corresponding position of the device model, wherein the animation information may be an animation in which red / yellow patterns appear alternately.

[0171] Optionally, the terminal sends the alarm information to the communication equipment of the substation staff.

[0172] Optionally, multiple alarm devices are installed in the substation, and the installation location of the alarm device is related to the location of the target device. When a person / vehicle / equipment is about to leave the live safety area, the terminal sends the alarm information to the corresponding alarm device so that the alarm device outputs a corresponding alarm signal. When the person / vehicle / equipment returns to the live safety area, the alarm signal is released.

[0173] This embodiment determines whether there is a situation for safety warning based on the live safety area. If so, it outputs a preset alarm signal, thereby providing a warning for unsafe factors in the substation and ensuring safe live operations for workers in the substation.

[0174] In the present application embodiment, Figure 7 As shown, a method for determining a live safety area is provided, the method comprising the following steps:

[0175] Step 701, obtaining a three-dimensional structural model corresponding to the substation and a live safety distance of a target device in the substation.

[0176] The three-dimensional structural model at least includes equipment models of various equipment in the substation.

[0177] Step 702, obtaining power data of the target device.

[0178] The power data includes at least one of the voltage, current and power of the target device.

[0179] Step 703: Compare the power data with a preset power parameter threshold to obtain a second comparison result, and determine whether the target device is powered on based on the second comparison result.

[0180] Step 704: when the target device is powered on, obtain model parameters of the three-dimensional structure model.

[0181] The model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model.

[0182] Step 705: Calculate the retention weight values ​​of the outer contour vertices according to the model parameters and the preset vertex collapse algorithm.

[0183] Among them, different simplification levels indicate different degrees of model simplification.

[0184] Step 706: compare the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determine the outer contour vertices to be retained based on the first comparison result.

[0185] Step 707: update the three-dimensional structure model according to the outer contour vertices to be retained to obtain a simplified three-dimensional structure model.

[0186] Step 708: Use the outer contour vertices included in the simplified three-dimensional structure model as the vertices of the simplified three-dimensional structure model.

[0187] Step 709: Determine target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertices and the simplified three-dimensional structure model.

[0188] Among them, when the relative position relationship is that the vertex is located inside the simplified three-dimensional structure model, the vertex is deleted in the simplified three-dimensional structure model, otherwise, the vertex is retained in the simplified three-dimensional structure model; the vertex information of the vertex finally obtained is used as the target contour vertex information.

[0189] Step 710: Determine contour vertex information of a device model of a target device in the simplified three-dimensional structure model according to the target contour vertex information.

[0190] Step 711 , based on the contour vertex information of the device model of the target device, the outer contour of the device model of the target device is expanded according to the live safety distance to obtain the expanded device model.

[0191] Step 712: determine the live safety area of ​​the target device according to the expanded three-dimensional structural model. The live safety area is used to characterize the safe operating range corresponding to the target device.

[0192] Step 713, based on the live safety area, determine whether there is a situation for safety warning, and if so, output a preset alarm signal.

[0193] This embodiment calculates the retention weight value of the outer contour vertices according to the model parameters and the preset vertex collapse algorithm, compares the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determines the outer contour vertices to be retained to obtain the simplified three-dimensional structure model based on the first comparison result. The computational complexity of determining the live safety area is reduced by using model simplification processing; and by determining the target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertex and the simplified three-dimensional structure model, the vertex information of the target device is further simplified to reduce the processing efficiency of the algorithm; by obtaining the power data of the target device, the power data is compared with the preset power parameter threshold to obtain a second comparison result, and based on the second comparison result, it is determined whether the target device is powered on, and according to the real-time power-on status of the equipment in the substation, the real-time determination of the live safety range of the substation is achieved.

[0194] It should be understood that although Figure 1-7The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 1-7 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0195] In the embodiments of the present application, Figure 8 As shown, a device for determining a live safety area is provided, comprising: an acquisition module, an expansion module and a determination module, wherein:

[0196] An acquisition module is used to acquire a three-dimensional structural model corresponding to the substation and a live safety distance of a target device in the substation, wherein the three-dimensional structural model at least includes a device model of each device in the substation;

[0197] The expansion module is used to expand the outer contour of the device model of the target device in the three-dimensional structure model according to the live safety distance when the target device is powered on, so as to obtain the expanded three-dimensional structure model;

[0198] The determination module is used to determine the live safety area of ​​the target device according to the expanded three-dimensional structural model, and the live safety area is used to characterize the safe operating range corresponding to the target device.

[0199] In one embodiment, the expansion module is specifically used for:

[0200] Performing model simplification processing on the three-dimensional structural model to obtain a simplified three-dimensional structural model;

[0201] According to the live safety distance, the outer contour of the device model of the target device in the simplified three-dimensional structural model is expanded to obtain the expanded three-dimensional structural model.

[0202] In one embodiment, the expansion module is further used to:

[0203] Acquire model parameters of the three-dimensional structure model, where the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model;

[0204] According to the model parameters and the preset simplification level, the three-dimensional structural model is simplified to obtain the simplified three-dimensional structural model. Different simplification levels indicate different degrees of model simplification.

[0205] In one embodiment, the expansion module is further used to:

[0206] According to the model parameters and the preset vertex collapse algorithm, the retention weight value of the outer contour vertex is calculated;

[0207] Compare the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determine the outer contour vertex to be retained according to the first comparison result;

[0208] The three-dimensional structure model is updated according to the outer contour vertices to be retained to obtain a simplified three-dimensional structure model.

[0209] In one embodiment, the expansion module is further used to:

[0210] Acquire model parameters of the three-dimensional structure model, where the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model;

[0211] The outer contour vertices included in the simplified three-dimensional structure model are used as vertices of the simplified three-dimensional structure model;

[0212] Determine target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertex and the simplified three-dimensional structure model;

[0213] In the simplified three-dimensional structure model, according to the target contour vertex information, the contour vertex information of the device model of the target device is determined;

[0214] The outer contour of the device model of the target device is expanded according to the live safety distance and the contour vertex information of the device model of the target device to obtain the expanded device model.

[0215] In one embodiment, the expansion module is further used to:

[0216] When the relative position relationship is that the vertex is located inside the simplified three-dimensional structure model, deleting the vertex in the simplified three-dimensional structure model;

[0217] When the relative position relationship is that the vertex is not located inside the simplified three-dimensional structure model, the vertex is retained in the simplified three-dimensional structure model;

[0218] The vertex information of the final vertex is used as the target contour vertex information.

[0219] In one embodiment, Fig. 9 As shown, based on Figure 8 In the embodiment shown, the device further includes a judgment module, which is specifically used to:

[0220] Acquire power data of a target device, where the power data includes at least one of voltage, current, and power of the target device;

[0221] The power data is compared with a preset power parameter threshold to obtain a second comparison result, and based on the second comparison result, it is determined whether the target device is powered on.

[0222] In one embodiment, Fig.10 As shown, based on Fig. 9 In the embodiment shown, the device further includes an early warning module, which is specifically used for:

[0223] Based on the live safety area, determine whether there is a situation for safety warning. If so, output the preset alarm signal.

[0224] In the embodiment of the present application, the live safety area is determined to be applied to Fig.11 In the business application layer of the platform architecture. The platform architecture includes a business application layer, a business service layer, a data layer, a Southern Power Grid cloud platform, an Internet of Things platform, and smart devices. The data of the unified data service center in the data layer includes online monitoring data of substation equipment, real-time data of substations, and full life cycle data of equipment. The Internet of Things platform data includes monitoring data of UWB positioning devices or camera positioning devices in substations, and these data are accessed through the Internet of Things platform. Among them, the application architecture diagram of the live safety area determination method device can be found in Fig.12 .

[0225] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Fig.13 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, an operator network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a method for determining a live safety area is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0226] Those skilled in the art will understand that Fig.13 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0227] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0228] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0229] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0230] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0231] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for determining a live safety area, characterized in that: The method comprises: Acquire a three-dimensional structural model corresponding to a substation and a live safety distance of a target device in the substation, wherein the three-dimensional structural model at least includes a device model of each device in the substation; When the target device is powered on, an outer contour of a device model of the target device in the three-dimensional structure model is expanded according to the live safety distance to obtain an expanded three-dimensional structure model; Determine a live safety area of ​​the target device according to the expanded three-dimensional structural model, where the live safety area is used to characterize a safe operating range corresponding to the target device; Expanding the outer contour of the device model of the target device in the three-dimensional structure model according to the live safety distance to obtain the expanded three-dimensional structure model, including: Acquire model parameters of the three-dimensional structure model, wherein the model parameters at least include parameter information of vertices of an outer contour of the three-dimensional structure model; According to the model parameters and the preset simplification level, the three-dimensional structure model is simplified to obtain a simplified three-dimensional structure model, wherein different simplification levels indicate different degrees of model simplification; The step of performing model simplification processing on the three-dimensional structure model according to the model parameters and the preset simplification level to obtain the simplified three-dimensional structure model includes: Calculating the retention weight values ​​of the outer contour vertices according to the model parameters and a preset vertex collapse algorithm; Compare the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determine the outer contour vertices to be retained according to the first comparison result; According to the outer contour vertices to be retained, the three-dimensional structure model is updated to obtain the simplified three-dimensional structure model; Expanding the outer contour of the device model of the target device in the three-dimensional structure model according to the live safety distance to obtain the expanded three-dimensional structure model, including: Acquire model parameters of the three-dimensional structure model, wherein the model parameters at least include parameter information of vertices of an outer contour of the three-dimensional structure model; Using the outer contour vertices included in the simplified three-dimensional structure model as vertices of the simplified three-dimensional structure model; Determining target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertex and the simplified three-dimensional structure model; In the simplified three-dimensional structure model, determining contour vertex information of a device model of the target device according to the target contour vertex information; The outer contour of the device model of the target device is expanded according to the live safety distance and the contour vertex information of the device model of the target device to obtain the expanded device model.

2. The method according to claim 1, characterized in that The step of expanding the outer contour of the device model of the target device in the three-dimensional structure model according to the live safety distance to obtain the expanded three-dimensional structure model includes: Performing model simplification processing on the three-dimensional structure model to obtain a simplified three-dimensional structure model; According to the live safety distance, the outer contour of the device model of the target device in the simplified three-dimensional structure model is expanded to obtain the expanded three-dimensional structure model.

3. The method according to claim 1, characterized in that The step of determining target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertex and the simplified three-dimensional structure model comprises: When the relative position relationship is that the vertex is located inside the simplified three-dimensional structure model, deleting the vertex in the simplified three-dimensional structure model; When the relative position relationship is that the vertex is not located inside the simplified three-dimensional structure model, retaining the vertex in the simplified three-dimensional structure model; The vertex information of the vertices finally obtained is used as the target contour vertex information.

4. The method according to claim 1, characterized in that: The method further comprises: Acquire power data of the target device, where the power data includes at least one of voltage, current and power of the target device; The power data is compared with a preset power parameter threshold to obtain a second comparison result, and based on the second comparison result, it is determined whether the target device is powered on.

5. The method according to claim 4, characterized in that When the power data is the current voltage value of the target device, if the current voltage value of the target device is higher than the preset voltage threshold, the target device is powered on; when the power data is the current power value of the target device, if the current power value of the target device is higher than the preset power threshold, the target device is powered on; when the power data is the current current value of the target device, if the current current value of the target device is not zero, the target device is powered on.

6. The method according to claim 1, characterized in that The method further comprises: Based on the live safety area, it is determined whether there is a situation for a safety warning, and if so, a preset alarm signal is output.

7. A device for determining a live safety area, characterized in that: The device comprises: An acquisition module, used to acquire a three-dimensional structural model corresponding to a substation and a live safety distance of a target device in the substation, wherein the three-dimensional structural model at least includes a device model of each device in the substation; An expansion module, used for expanding the outer contour of the device model of the target device in the three-dimensional structure model according to the live safety distance when the target device is powered on, to obtain the expanded three-dimensional structure model; A determination module, used to determine a live safety area of ​​the target device according to the expanded three-dimensional structural model, wherein the live safety area is used to characterize a safe operating range corresponding to the target device; The expansion module is further used to obtain model parameters of the three-dimensional structure model, wherein the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model; perform model simplification processing on the three-dimensional structure model according to the model parameters and a preset simplification level to obtain a simplified three-dimensional structure model, wherein different simplification levels indicate different degrees of model simplification; The expansion module is further used to calculate the retention weight value of the outer contour vertex according to the model parameters and the preset vertex collapse algorithm; compare the retention weight value with the simplification threshold corresponding to the simplification level to obtain a first comparison result, and determine the outer contour vertex to be retained according to the first comparison result; update the three-dimensional structure model according to the outer contour vertex to be retained to obtain the simplified three-dimensional structure model; The expansion module is also used to obtain model parameters of the three-dimensional structure model, wherein the model parameters at least include parameter information of the outer contour vertices of the three-dimensional structure model; use the outer contour vertices contained in the simplified three-dimensional structure model as vertices of the simplified three-dimensional structure model; determine target contour vertex information of the simplified three-dimensional structure model based on the relative position relationship between the vertices and the simplified three-dimensional structure model; determine contour vertex information of the device model of the target device in the simplified three-dimensional structure model according to the target contour vertex information; expand the outer contour of the device model of the target device according to the live safety distance and the contour vertex information of the device model of the target device to obtain the expanded device model.

8. The device according to claim 7, characterized in that The expansion module is specifically used to simplify the three-dimensional structural model to obtain a simplified three-dimensional structural model; according to the live safety distance, the outer contour of the device model of the target device in the simplified three-dimensional structural model is expanded to obtain the expanded three-dimensional structural model.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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