Construction site assessment method and device based on personnel distribution analysis, and storage medium

Abstract

The invention discloses a construction site evaluation method and device based on personnel distribution analysis, and a storage medium, and relates to the technical field of building evaluation, and the method can achieve the evaluation of each target region in a target construction site according to all monitoring data corresponding to the target region at a target moment. Determining regional personnel distribution information in the target region; building personnel distribution information corresponding to the target building site is determined according to the area personnel distribution information in all target areas in the target building site; and based on analysis of the building personnel distribution information corresponding to the target building site, obtaining a site evaluation result of the target building site. According to the method, the data for evaluating the target building site is automatically acquired by the monitoring devices, so that the efficiency is higher, and meanwhile, compared with a method for acquiring data by manual sampling, the monitoring devices are distributed at most positions of the target building site, so that the most comprehensive data can be acquired, and the accuracy of the acquired data is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of building evaluation, and in particular to a building site evaluation method and device, and a storage medium based on personnel distribution analysis. Background Art

[0002] With the development of the construction industry, modern buildings carry more and more functions. After the construction site is built, whether it can meet the corresponding functional requirements depends on the evaluation of the use of the construction site. For example, with the rapid development of the global aviation industry, the operating efficiency and passenger experience of airport terminals have become key indicators for measuring the competitiveness of airports. It can be seen that accurate evaluation of construction sites is crucial.

[0003] In the prior art, the assessment of construction sites mostly relies on on-site inspections by assessors or the distribution of corresponding questionnaires. Practice shows that the accuracy and efficiency of the assessment of construction sites by on-site inspections by assessors and the distribution of questionnaires are low. Therefore, it is necessary to propose a new construction site assessment method to improve the accuracy and efficiency of construction site assessment. Summary of the invention

[0004] The present invention provides a construction site assessment method and device, and a storage medium based on personnel distribution analysis, which are used to improve the accuracy and efficiency of construction site assessment.

[0005] In order to solve the above technical problems, the first aspect of the present invention discloses a construction site assessment method based on personnel distribution analysis, the method comprising:

[0006] For each target area in the target building site, monitoring data acquired by all monitoring devices corresponding to the target area at the target time is acquired; wherein the monitoring data includes one or more of video surveillance data, thermal imaging data, and radar data;

[0007] For each of the target areas within the target building site, determine regional personnel distribution information within the target area according to all the monitoring data corresponding to the target area at the target time;

[0008] Determine the construction personnel distribution information corresponding to the target construction site according to the regional personnel distribution information in all the target areas within the target construction site;

[0009] Based on the analysis of the construction personnel distribution information corresponding to the target construction site, a site evaluation result of the target construction site is obtained.

[0010] As an optional implementation manner, in the first aspect of the present invention, obtaining a site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site includes:

[0011] Evenly distributed sampling points are set in the target building site, and according to the building personnel distribution information corresponding to the target building site, the personnel distribution density in the preset sampling area around each sampling point is obtained;

[0012] Generating a personnel distribution heat map corresponding to the target building site according to the personnel distribution density corresponding to all the sampling points in the target building site;

[0013] Based on the analysis of the personnel distribution heat map corresponding to the target construction site, a site evaluation result of the target construction site is obtained.

[0014] As an optional embodiment, in the first aspect of the present invention, the method further comprises:

[0015] Acquire the construction personnel distribution information corresponding to the target construction site at a plurality of preset reference target times;

[0016] Determine, according to the construction personnel distribution information corresponding to the target construction site at all the reference target moments, the construction personnel trajectory information corresponding to the target construction site within a reference time period, the reference time period including all the reference target moments, the construction personnel trajectory information being used to represent the movement of the positions of all pedestrians in the target construction site over time;

[0017] According to the trajectory information of the construction personnel corresponding to the target construction site within the reference time period, the average waiting time corresponding to all the connection nodes in the target construction site is calculated; wherein the connection node is used to represent the connection channel between any two target areas, and the average waiting time represents the average waiting time length of all pedestrians passing through the corresponding connection node;

[0018] According to the average waiting time corresponding to all the connection nodes in the target building site, a personnel satisfaction evaluation result corresponding to the target building site is obtained.

[0019] As an optional embodiment, in the first aspect of the present invention, the method further comprises:

[0020] Determine a main path in the target construction site according to the construction personnel trajectory information of the target construction site within the reference time period, wherein the number of all pedestrians moving along the main path in the target construction site exceeds a preset number threshold;

[0021] Determine path trajectory information corresponding to each of the main paths in the target construction site according to the construction personnel trajectory information and the main path information of the target construction site within the reference time period, wherein the path trajectory information is used to indicate the movement of positions of all pedestrians on the corresponding main path over time;

[0022] For each of the main paths within the target building site, determine the average decision time corresponding to each branching position on the main path according to the path trajectory information corresponding to the main path, wherein the average decision time is used to represent the average length of stay of all pedestrians on the main path passing through the corresponding branching position;

[0023] For each of the main paths in the target construction site, a design rationality evaluation result corresponding to the main path in the target construction site is obtained according to the average decision time corresponding to all the branching positions on the main path.

[0024] As an optional implementation manner, in the first aspect of the present invention, for each of the target areas in the target building site, determining the regional personnel distribution information in the target area according to all the monitoring data corresponding to the target area at the target time includes:

[0025] For each of the target areas within the target building site, the personnel information in all the monitoring data corresponding to the target area at the target time is identified, and the centroid of the pedestrian corresponding to each of the personnel information is projected to the ground to obtain the personnel coordinate information corresponding to each of the personnel information; based on the personnel coordinate information corresponding to all the personnel information, the regional personnel distribution information within the target area is determined; wherein the personnel information at least includes personnel identification information.

[0026] As an optional implementation manner, in the first aspect of the present invention, for each of the target areas in the target building site, determining the regional personnel distribution information in the target area according to the personnel coordinate information corresponding to all the personnel information includes:

[0027] For each of the target areas within the target building site, all the personnel information corresponding to the target area are grouped to obtain a number of personnel information groups, wherein all the personnel information within each personnel information group is judged to be the same pedestrian; for each of the personnel information groups, based on the personnel coordinate information corresponding to all the personnel information within the personnel information group, the comprehensive coordinate information corresponding to the personnel information group is determined, and the comprehensive coordinate information is used to represent the coordinate information of the target pedestrian represented by the corresponding personnel information group; based on the comprehensive coordinate information corresponding to all the personnel information groups, the regional personnel distribution information within the target area is determined.

[0028] As an optional implementation, in the first aspect of the present invention, the monitoring device is a video monitoring device, the monitoring data is video monitoring data, and, for each of the personnel information groups, determining the comprehensive coordinate information corresponding to the personnel information group according to the personnel coordinate information corresponding to all the personnel information in the personnel information group, includes:

[0029] For each piece of the personnel information in each of the personnel information groups, a confidence parameter corresponding to the personnel information is determined according to the recognition clarity of the personnel information in the video surveillance data corresponding to the personnel information; wherein the recognition clarity is used to indicate the clarity of the personnel information in the corresponding video surveillance data, and the confidence parameter is used to measure the degree to which the personnel information can be used to correctly indicate the corresponding pedestrian;

[0030] Filtering out a plurality of credible personnel information from each of the personnel information groups, wherein a confidence parameter corresponding to each of the credible personnel information is greater than or equal to a preset confidence threshold;

[0031] For each of the personnel information groups, the center point coordinates of the personnel coordinate information corresponding to all of the trusted personnel information in the personnel information group are calculated, and the center point coordinates are determined to be the comprehensive coordinate information corresponding to the personnel information group.

[0032] A second aspect of the present invention discloses a construction site assessment device based on personnel distribution analysis, the device comprising:

[0033] A data acquisition module, for acquiring, for each target area in the target building site, monitoring data acquired by all monitoring devices corresponding to the target area at a target time; wherein the monitoring data includes one or more of video surveillance data, thermal imaging data, and radar data;

[0034] A regional analysis module, for determining, for each of the target areas within the target building site, regional personnel distribution information within the target area according to all the monitoring data corresponding to the target area at the target time;

[0035] A site analysis module, used to determine the building personnel distribution information corresponding to the target building site according to the regional personnel distribution information in all the target areas within the target building site;

[0036] The site evaluation module is used to obtain a site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site.

[0037] As an optional implementation, in the second aspect of the present invention, the specific manner in which the site evaluation module obtains the site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site includes:

[0038] Evenly distributed sampling points are set in the target building site, and according to the building personnel distribution information corresponding to the target building site, the personnel distribution density in the preset sampling area around each sampling point is obtained;

[0039] Generating a personnel distribution heat map corresponding to the target building site according to the personnel distribution density corresponding to all the sampling points in the target building site;

[0040] Based on the analysis of the personnel distribution heat map corresponding to the target construction site, a site evaluation result of the target construction site is obtained.

[0041] As an optional embodiment, in the second aspect of the present invention, the device further includes:

[0042] A timing acquisition module, used to acquire the construction personnel distribution information corresponding to the target construction site at a plurality of preset reference target times;

[0043] A trajectory analysis module, for determining, based on the construction personnel distribution information corresponding to the target construction site at all the reference target moments, the construction personnel trajectory information corresponding to the target construction site within a reference time period, wherein the reference time period includes all the reference target moments, and the construction personnel trajectory information is used to represent the movement of the positions of all pedestrians in the target construction site over time;

[0044] A node analysis module is used to calculate the average waiting time corresponding to all connection nodes in the target building site according to the trajectory information of the construction personnel corresponding to the target building site within the reference time period; wherein the connection node is used to represent the connection channel between any two target areas, and the average waiting time represents the average waiting time length of all pedestrians passing through the corresponding connection node;

[0045] The satisfaction evaluation module is used to obtain the personnel satisfaction evaluation result corresponding to the target building site according to the average waiting time corresponding to all the connection nodes in the target building site.

[0046] As an optional embodiment, in the second aspect of the present invention, the device further includes:

[0047] a path determination module, configured to determine a main path within the target construction site according to the trajectory information of the construction personnel within the target construction site within the reference time period, wherein the number of all pedestrians moving along the main path within the target construction site exceeds a preset number threshold;

[0048] A path analysis module, for determining path trajectory information corresponding to each of the main paths in the target construction site according to the trajectory information of the construction personnel and the main path information of the target construction site within the reference time period, wherein the path trajectory information is used to indicate the movement of the positions of all pedestrians on the corresponding main path over time;

[0049] A bifurcation analysis module is used to determine, for each of the main paths within the target building site, an average decision time corresponding to each bifurcation position on the main path according to the path trajectory information corresponding to the main path, wherein the average decision time is used to represent the average length of stay of all pedestrians on the main path passing through the corresponding bifurcation position;

[0050] The path evaluation module is used to obtain, for each of the main paths in the target building site, a design rationality evaluation result corresponding to the main path in the target building site according to the average decision time corresponding to all the branching positions on the main path.

[0051] As an optional implementation, in the second aspect of the present invention, the regional analysis module determines, for each of the target areas within the target building site, a specific method of determining the regional personnel distribution information within the target area according to all the monitoring data corresponding to the target area at the target time, including:

[0052] For each of the target areas within the target building site, the personnel information in all the monitoring data corresponding to the target area at the target time is identified, and the centroid of the pedestrian corresponding to each of the personnel information is projected to the ground to obtain the personnel coordinate information corresponding to each of the personnel information; based on the personnel coordinate information corresponding to all the personnel information, the regional personnel distribution information within the target area is determined; wherein the personnel information at least includes personnel identification information.

[0053] As an optional implementation, in the second aspect of the present invention, the regional analysis module determines, for each of the target areas in the target building site, the specific manner of determining the regional personnel distribution information in the target area according to the personnel coordinate information corresponding to all the personnel information, including:

[0054] For each of the target areas within the target building site, all the personnel information corresponding to the target area are grouped to obtain a number of personnel information groups, wherein all the personnel information within each personnel information group is judged to be the same pedestrian; for each of the personnel information groups, based on the personnel coordinate information corresponding to all the personnel information within the personnel information group, the comprehensive coordinate information corresponding to the personnel information group is determined, and the comprehensive coordinate information is used to represent the coordinate information of the target pedestrian represented by the corresponding personnel information group; based on the comprehensive coordinate information corresponding to all the personnel information groups, the regional personnel distribution information within the target area is determined.

[0055] As an optional implementation, in the second aspect of the present invention, the monitoring device is a video monitoring device, the monitoring data is video monitoring data, and the regional analysis module determines, for each of the personnel information groups, the specific manner of the comprehensive coordinate information corresponding to the personnel information group according to the personnel coordinate information corresponding to all the personnel information in the personnel information group, including:

[0056] For each piece of the personnel information in each of the personnel information groups, a confidence parameter corresponding to the personnel information is determined according to the recognition clarity of the personnel information in the video surveillance data corresponding to the personnel information; wherein the recognition clarity is used to indicate the clarity of the personnel information in the corresponding video surveillance data, and the confidence parameter is used to measure the degree to which the personnel information can be used to correctly indicate the corresponding pedestrian;

[0057] Filtering out a plurality of credible personnel information from each of the personnel information groups, wherein a confidence parameter corresponding to each of the credible personnel information is greater than or equal to a preset confidence threshold;

[0058] For each of the personnel information groups, the center point coordinates of the personnel coordinate information corresponding to all of the trusted personnel information in the personnel information group are calculated, and the center point coordinates are determined to be the comprehensive coordinate information corresponding to the personnel information group.

[0059] The third aspect of the present invention discloses another construction site assessment device based on personnel distribution analysis, the device comprising:

[0060] A memory storing executable program code;

[0061] a processor coupled to the memory;

[0062] The processor calls the executable program code stored in the memory to execute the construction site assessment method based on personnel distribution analysis disclosed in the first aspect of the present invention.

[0063] The fourth aspect of the present invention discloses a computer storage medium, wherein the computer storage medium stores computer instructions, and when the computer instructions are called, they are used to execute the construction site assessment method based on personnel distribution analysis disclosed in the first aspect of the present invention.

[0064] Compared with the prior art, the present invention has the following beneficial effects:

[0065] The present invention obtains, for each target area within the target building site, the monitoring data acquired by all monitoring devices corresponding to the target area at the target time; for each target area within the target building site, the regional personnel distribution information within the target area is determined based on all monitoring data corresponding to the target area at the target time; the building personnel distribution information corresponding to the target building site is determined based on the regional personnel distribution information of all target areas within the target building site; and the site evaluation result of the target building site is obtained based on the analysis of the building personnel distribution information corresponding to the target building site. It can be seen that the data used for the target building site evaluation in the embodiment of the present invention comes from the automatic acquisition of the monitoring device, so it is more efficient. At the same time, compared with the method of obtaining data by manual sampling, the monitoring devices are distributed in most positions of the target building site, and more comprehensive data can be obtained, so the obtained data is more accurate. In summary, the embodiment of the present invention improves the accuracy and efficiency of the building site evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0067] Figure 1 It is a flow chart of a construction site assessment method based on personnel distribution analysis disclosed in an embodiment of the present invention;

[0068] Figure 2 is a schematic diagram of a trajectory coordinate point cloud in an embodiment of the present invention;

[0069] Figure 3 is a schematic diagram of a thermal diagram disclosed in an embodiment of the present invention;

[0070] Figure 4It is a flow chart of another construction site assessment method based on personnel distribution analysis disclosed in an embodiment of the present invention;

[0071] Figure 5 It is a structural schematic diagram of a construction site assessment device based on personnel distribution analysis disclosed in an embodiment of the present invention;

[0072] Figure 6 It is a structural schematic diagram of another construction site assessment device based on personnel distribution analysis disclosed in an embodiment of the present invention;

[0073] Figure 7 It is a structural schematic diagram of another construction site assessment device based on personnel distribution analysis disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0074] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0075] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or end including a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or ends.

[0076] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0077] The invention discloses a construction site assessment method and device based on personnel distribution analysis, and a storage medium, which are used to improve the accuracy and efficiency of construction site assessment.

[0078] Embodiment 1

[0079] See also Figure 1 , Figure 11 is a flow chart of a construction site assessment method based on personnel distribution analysis disclosed in an embodiment of the present invention. Figure 1 The construction site assessment method based on personnel distribution analysis described above can be applied to a construction site assessment device based on personnel distribution analysis. The construction site assessment device based on personnel distribution analysis can be integrated in a cloud server or a local server, and the embodiments of the present invention are not limited thereto. Figure 1 As shown, the construction site assessment method based on personnel distribution analysis may include the following operations:

[0080] Step 101: For each target area in the target building site, the monitoring data acquired by all monitoring devices corresponding to the target area at the target time are acquired.

[0081] In the embodiment of the present invention, the target building site is a building site to be analyzed, for example, an airport terminal, a high-speed rail station, a bus station, a large shopping mall, a large supermarket, etc., which is not limited in the embodiment of the present invention. The monitoring device may include a monitoring camera, a thermal imaging device, a radar detector, etc., and correspondingly, the monitoring data includes one or more of video monitoring data, thermal imaging data, and radar data.

[0082] Step 102: for each target area in the target building site, determine the regional personnel distribution information in the target area according to all monitoring data corresponding to the target area at the target time.

[0083] In an embodiment of the present invention, the target area is an area within the target building site. The target area can be divided according to different standards. For example, it can be divided into different areas according to the function of the building site, including passage areas, rest areas, leisure areas, dining areas, waiting areas, etc.; it can also be divided according to the installation status of monitoring devices in the building site, including monitoring area 1, monitoring area 2, monitoring area 3, etc.; it can also be divided according to other preset division standards.

[0084] In an embodiment of the present invention, for each target area, the regional personnel distribution information within the target area is determined based on the monitoring data. For example, based on the monitoring data, information such as the number of people, personnel positions, and personnel flow direction within the target area can be obtained. The regional personnel distribution information may include the above-mentioned information such as the number of people, personnel positions, and personnel flow direction.

[0085] Step 103: Determine the construction personnel distribution information corresponding to the target construction site according to the regional personnel distribution information in all target areas within the target construction site.

[0086] In the embodiment of the present invention, the target construction site is composed of various target areas, and the regional personnel distribution information in each target area is comprehensively analyzed according to a specific method, so that the construction personnel distribution information corresponding to the target construction site can be determined. Among them, the construction personnel distribution information is used to measure the personnel distribution of the entire target construction site, and may include personnel quantity information, location coordinate information, flow direction information, etc.

[0087] Step 104: Based on the analysis of the construction personnel distribution information corresponding to the target construction site, a site evaluation result of the target construction site is obtained.

[0088] In the embodiment of the present invention, the evaluation of the construction site depends on the construction personnel distribution information obtained through the above steps. Optionally, based on the analysis of the construction personnel distribution information corresponding to the target construction site, obtaining the site evaluation result of the target construction site may include the following analysis process:

[0089] (1) Personnel flow distribution analysis: By tracking the movement of people in the terminal, we can analyze the distribution of personnel flow in different areas and identify peak hours and crowded areas.

[0090] (2) Identification of personnel behavior patterns: By analyzing the movement paths and aggregation trends of personnel, we can identify their behavior patterns, such as which areas they tend to stay longer in and which service points are more popular.

[0091] (3) Facility utilization efficiency assessment: The utilization efficiency of facilities such as shops, restaurants, and rest areas within the target building can be assessed to provide data support for facility layout and resource allocation.

[0092] (4) Safety monitoring and emergency response: Real-time monitoring of crowd density and abnormal behavior, timely detection of potential safety issues, and rapid response to improve the safety management level of target building sites.

[0093] (5) Personnel satisfaction survey: By analyzing the activities of personnel in the terminal, we can indirectly infer their satisfaction, for example, by calculating the waiting time for personnel at security checkpoints, boarding, etc.

[0094] (6) Optimization of target building site design: Based on the analysis results of personnel flow and behavior patterns, the layout, signage, service facilities, etc. of the target building site can be optimized to improve the personnel experience.

[0095] (7) Improved operational efficiency: By analyzing personnel mobility data, the operational processes of the target building can be optimized, such as adjusting the opening hours of check-in counters and optimizing the layout of baggage conveyor belts.

[0096] (8) Environmental impact assessment: Assess the impact of personnel flow on the environment within the target construction site, such as air quality, noise level, etc., to provide a basis for improving the environment of the target construction site.

[0097] (9) Market analysis and business intelligence: Analyze people’s consumption behaviors and preferences to provide data support for the commercial development and marketing of target building sites.

[0098] (10) Regulation and policy formulation: Provide data support to target building site management agencies to help formulate or adjust relevant regulations and policies to cope with changes in personnel flow and development trends in personnel behavior.

[0099] It can be seen that the construction site assessment method based on personnel distribution analysis in the embodiment of the present invention can determine the regional personnel distribution information in the target area for each target area in the target construction site according to all monitoring data corresponding to the target area at the target time; determine the construction personnel distribution information corresponding to the target construction site according to the regional personnel distribution information of all target areas in the target construction site; and obtain the site assessment result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site. The data used for the target construction site assessment in the embodiment of the present invention is automatically acquired from the monitoring device, so it is more efficient. At the same time, compared with the method of obtaining data by manual sampling, the monitoring device is distributed in most positions of the target construction site, and the most comprehensive data can be obtained, so the obtained data is more accurate. In summary, the embodiment of the present invention improves the accuracy and efficiency of construction site assessment.

[0100] In an optional embodiment, obtaining a site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site may include:

[0101] Evenly distributed sampling points are set in the target building site, and according to the building personnel distribution information corresponding to the target building site, the personnel distribution density in the preset sampling area around each sampling point is obtained;

[0102] According to the personnel distribution density corresponding to all sampling points in the target building site, a personnel distribution heat map corresponding to the target building site is generated;

[0103] Based on the analysis of the personnel distribution heat map corresponding to the target building site, the site evaluation result of the target building site is obtained.

[0104] In this optional embodiment, uniformly distributed sampling points are set in the target building site, and the distribution density of personnel in the preset sampling area around each sampling point is obtained according to the building personnel distribution information corresponding to the target building site. Optionally, the sampling points in the present invention can be adjusted according to the accuracy requirements of the evaluation results and the size requirements of the calculation amount. For example, for a target building site with a large number of people, in order to reflect the final thermal map in real time, the density of the sampling points in this optional embodiment can be set to be sparser, and the sampling area corresponding to each sampling point can also be set to be smaller, thereby greatly reducing the calculation amount. For certain scene requirements, the thermal map can be calculated in real time.

[0105] In this optional embodiment, it is further optional that the sampling points can be adjusted based on the feedback of the heat map that has been obtained. For example, for areas with darker colors in the heat map, the density of sampling points can be increased to improve local accuracy; for areas with lighter colors in the heat map, the density of sampling points can be reduced or no sampling operation can be performed to reduce the amount of calculation.

[0106] This optional embodiment takes the surveillance video monitoring in the terminal as an example, and is illustrated as follows:

[0107] 1. Video crowd multi-target identification tracking, statistics, recording trajectory coordinates and exporting:

[0108] Video surveillance data collection: Obtain real-time video streams of crowded functional areas such as the check-in area, security area, and waiting area of ​​the airport terminal, as well as historical peak-time videos, from the airport terminal monitoring system.

[0109] Crowd multi-target recognition and tracking: The acquired video surveillance data is imported into the computer, and the video is analyzed frame by frame through the corresponding algorithm. The core parameters of the algorithm including the confidence threshold are adjusted according to external conditions such as the ambient brightness of different videos to detect each pedestrian in the video; and the connection between the previous and next frames is analyzed to track the movement trajectory of each pedestrian.

[0110] Crowd counting and data processing and export: First, an independent ID is assigned to each pedestrian through the corresponding algorithm, and the ID, time and space coordinates of each target are recorded; detection lines are set in the video according to the viewing angle of the surveillance camera. Whenever a pedestrian crosses the detection line, the algorithm will count them according to the crossing direction, thereby counting the number of people in different directions; when tracking the trajectory of pedestrians, the control algorithm converts the projection points of the pedestrian's centroid on the ground into coordinates frame by frame. After the video analysis is completed, a large number of coordinates are uniformly exported as an Excel file to form a trajectory data set.

[0111] 2. Generate trajectory point cloud and make density thermal analysis diagram:

[0112] Data import: Import trajectory coordinate data from Excel files.

[0113] Point cloud generation: Generate point cloud based on trajectory coordinates, such as Figure 2 shown.

[0114] Point cloud density heat map drawing: Generate sampling points evenly within the video range, calculate the distribution density of the point cloud near the sampling points, weave the sampling points into a grid and color each grid according to the distribution density to generate a heat map to visualize the crowd distribution pattern, such as Figure 3 shown.

[0115] It can be seen that this optional embodiment can set evenly distributed sampling points in the target building site, obtain the personnel distribution density in the preset sampling area around each sampling point according to the building personnel distribution information corresponding to the target building site; and generate a personnel distribution heat map corresponding to the target building site according to the personnel distribution density corresponding to all sampling points in the target building site. The heat map can intuitively and efficiently reflect the personnel distribution of the target building site, thereby further improving the efficiency of the building site assessment.

[0116] In another optional embodiment, the method may further include:

[0117] Obtaining construction personnel distribution information corresponding to a target construction site at a plurality of preset reference target times;

[0118] Determine the construction personnel trajectory information corresponding to the target construction site within the reference time period according to the construction personnel distribution information corresponding to the target construction site at all reference target times;

[0119] According to the trajectory information of the construction personnel corresponding to the target construction site within the reference time period, the average waiting time corresponding to all the connection nodes in the target construction site is calculated;

[0120] According to the average waiting time corresponding to all connection nodes in the target building site, the personnel satisfaction evaluation result corresponding to the target building site is obtained.

[0121] In this optional embodiment, the preset multiple reference target moments can be continuous moments, for example, a reference target moment is defined at intervals of a certain time, and after obtaining the construction personnel distribution information corresponding to the target construction site at the preset multiple reference target moments, the change information of the construction personnel distribution information corresponding to the target construction site over time can be further analyzed, that is: according to the construction personnel distribution information corresponding to the target construction site at all reference target moments, the construction personnel trajectory information corresponding to the target construction site in the reference time period is determined. Among them, the reference time period includes all reference target moments, and the construction personnel trajectory information is used to indicate the movement of the positions of all pedestrians in the target construction site over time.

[0122] In this optional embodiment, the connection node is used to represent the connection channel between any two target areas, such as the gate, door, channel entrance, etc. of the airport station. The embodiment of the present invention measures the personnel satisfaction evaluation result corresponding to a building site by identifying the waiting time of personnel at the connection node. For example, for an airport terminal, the waiting time for the gate is too long, and passengers will inevitably complain. Therefore, the waiting time of passengers passing through each connection node can be used as the evaluation basis of personnel satisfaction, wherein the average waiting time represents the average waiting time length of all pedestrians passing through the corresponding connection node.

[0123] It can be seen that this optional embodiment can calculate the average waiting time corresponding to all connection nodes in the target construction site based on the construction personnel trajectory information corresponding to the target construction site within the reference time period; and obtain the personnel satisfaction evaluation result corresponding to the target construction site based on the average waiting time corresponding to all connection nodes in the target construction site, thereby evaluating the detected site in more detail.

[0124] In yet another optional embodiment, the method may further include:

[0125] Determine the main path in the target construction site based on the trajectory information of construction personnel in the target construction site within the reference time period;

[0126] According to the trajectory information of the construction personnel and the main path information of the target construction site within the reference time period, the path trajectory information corresponding to each main path in the target construction site is determined, and the path trajectory information is used to represent the movement of the positions of all pedestrians on the corresponding main path over time;

[0127] For each main path in the target building site, determine the average decision time corresponding to each bifurcation position on the main path according to the path trajectory information corresponding to the main path;

[0128] For each main path in the target building site, the design rationality evaluation result corresponding to the main path in the target building site is obtained according to the average decision time corresponding to all bifurcation positions on the main path.

[0129] In this optional embodiment, the number of all pedestrians moving along the main path in the target building site exceeds the preset threshold of the number of people, and the average decision time is used to represent the average length of stay of all pedestrians on the main path through the corresponding fork position. For some construction sites with large flow of people, road planning and guidance are very important design links, especially for some main paths with large flow of people, such as high-speed rail stations, from the gate of the high-speed rail station to the waiting gate of popular trains, the path has a large flow of people, and there are often time-constrained people who need to get to the station quickly. Therefore, it is necessary to evaluate the circulation of the main paths in the construction site. In this optional embodiment, for each main path in the target building site, the average decision time corresponding to each fork position on the main path is determined according to the path trajectory information corresponding to the main path. A well-designed path should enable people to quickly find the correct route and quickly reach the destination. If the decision time of pedestrians at the fork position is too long, it means that the road design is unreasonable or the guidance sign is set unreasonably.

[0130] It can be seen that this optional embodiment can determine, for each main path in the target construction site, the average decision time corresponding to each branching position on the main path based on the path trajectory information corresponding to the main path; for each main path in the target construction site, based on the average decision time corresponding to all branching positions on the main path, obtain the design rationality evaluation result corresponding to the main path in the target construction site, thereby evaluating the detected site in more detail.

[0131] Embodiment 2

[0132] See also Figure 4 , Figure 4 1 is a flow chart of another method for evaluating a construction site based on personnel distribution analysis disclosed in an embodiment of the present invention. The method for evaluating a construction site based on personnel distribution analysis may include the following operations:

[0133] Step 201: For each target area in the target building site, the monitoring data acquired by all monitoring devices corresponding to the target area at the target time are acquired.

[0134] Step 202: for each target area in the target building site, identify the personnel information in all monitoring data corresponding to the target area at the target time, and project the centroid of the pedestrian corresponding to each personnel information to the ground to obtain the personnel coordinate information corresponding to each personnel information; determine the regional personnel distribution information in the target area according to the personnel coordinate information corresponding to all personnel information;

[0135] In the embodiment of the present invention, the personnel information at least includes personnel identification information, and the personnel identification is assigned to each identified person after identifying the personnel in the monitoring data. In the embodiment of the present invention, the personnel information therein can be identified by analyzing the monitoring data. For example, for the analysis of the video surveillance data, the images of the personnel therein can be identified based on the image processing basis. Optionally, the images of the same person at different angles can be obtained based on the video surveillance data distributed at multiple angles. Based on the personnel images, the centroid of the pedestrian corresponding to each personnel information is projected to the ground to obtain the personnel coordinate information corresponding to each personnel information. In the embodiment of the present invention, by projecting the centroid of the pedestrian corresponding to each personnel information to the ground to obtain the personnel coordinate information corresponding to each personnel information, the accuracy of the personnel distribution information analysis results can be improved. At the same time, the centroid of the pedestrian is uniformly projected to the ground, and the uniform implementation is achieved through the algorithm. There is no need to correct the personnel coordinates according to various methods, which improves the efficiency of the algorithm processing.

[0136] Step 203: Determine the construction personnel distribution information corresponding to the target construction site according to the regional personnel distribution information in all target areas within the target construction site.

[0137] Step 204: Based on the analysis of the construction personnel distribution information corresponding to the target construction site, a site evaluation result of the target construction site is obtained.

[0138] For the specific description of steps 201 , 203 , and 204 , please refer to the description of steps 101 , 103 , and 104 , which will not be repeated in the embodiment of the present invention.

[0139] It can be seen that the construction site evaluation method based on personnel distribution analysis in the embodiment of the present invention can identify the personnel information in all monitoring data corresponding to the target area at the target time for each target area in the target construction site, and project the centroid of the pedestrian corresponding to each personnel information to the ground to obtain the personnel coordinate information corresponding to each personnel information; determine the regional personnel distribution information in the target area according to the personnel coordinate information corresponding to all personnel information; determine the building personnel distribution information corresponding to the target construction site according to the regional personnel distribution information of all target areas in the target construction site; and obtain the site evaluation result of the target construction site based on the analysis of the building personnel distribution information corresponding to the target construction site. The data used for the target construction site evaluation in the embodiment of the present invention is automatically acquired from the monitoring device, so it is more efficient. At the same time, compared with the method of manually sampling to obtain data, the monitoring device is distributed in most positions of the target construction site, and the most comprehensive data can be obtained. In the process of data processing, the present invention uniformly projects the centroid of the pedestrian corresponding to each personnel information to the ground, which further improves the accuracy of data processing. In summary, the embodiment of the present invention improves the accuracy and efficiency of construction site evaluation.

[0140] In an optional embodiment, for each target area in the target building site, determining the regional personnel distribution information in the target area according to the personnel coordinate information corresponding to all the personnel information may include:

[0141] For each target area within the target building site, all personnel information corresponding to the target area is grouped to obtain a number of personnel information groups, wherein all personnel information within each personnel information group is judged to be the same pedestrian; for each personnel information group, based on the personnel coordinate information corresponding to all personnel information within the personnel information group, the comprehensive coordinate information corresponding to the personnel information group is determined, and the comprehensive coordinate information is used to represent the coordinate information of the target pedestrian represented by the corresponding personnel information group; based on the comprehensive coordinate information corresponding to all personnel information groups, the regional personnel distribution information within the target area is determined.

[0142] In this optional embodiment, a plurality of monitoring devices are arranged in each target area, and each monitoring device complements each other. If only a single detection device is relied upon to obtain the personnel distribution information, the accuracy of the data is not precise enough. For example, for video monitoring equipment, due to the inevitable distortion of the camera, the position determination of some personnel farther from the center of the image is less accurate or even wrong. Therefore, this optional embodiment first puts the data judged as the same person in different monitoring data into a group. For example, a certain passenger A is monitored by four monitoring devices in the target area A respectively, and the group corresponding to passenger A stores the information of passenger A in the four monitoring devices.

[0143] In this optional embodiment, the comprehensive coordinate information corresponding to the personnel information group is determined based on the personnel coordinate information corresponding to all the personnel information in the personnel information group. For example, passenger A corresponds to four personnel coordinate information in the group, and it is necessary to determine the comprehensive coordinate information with a higher degree of final credibility based on the four personnel coordinate information. Optionally, the center point coordinates of the four personnel coordinate information can be calculated as the comprehensive coordinate information; in addition, the coordinates with a larger difference from the average value can be excluded from the four coordinates, because the coordinates with a larger difference from the average value are often coordinates with large errors.

[0144] It can be seen that this optional embodiment can group all the personnel information corresponding to each target area in the target construction site to obtain a number of personnel information groups. For each personnel information group, the comprehensive coordinate information corresponding to the personnel information group is determined based on the personnel coordinate information corresponding to all the personnel information in the personnel information group. Based on the comprehensive coordinate information corresponding to all the personnel information groups, the regional personnel distribution information in the target area is determined, thereby improving the accuracy of determining the personnel coordinate information and further improving the accuracy of the construction site evaluation.

[0145] In another optional embodiment, for each personnel information group, determining the comprehensive coordinate information corresponding to the personnel information group according to the personnel coordinate information corresponding to all the personnel information in the personnel information group may include:

[0146] For each piece of personal information in each personal information group, a confidence parameter corresponding to the personal information is determined according to the recognition clarity of the personal information in the video surveillance data corresponding to the personal information; wherein the recognition clarity is used to indicate the clarity of the personal information in the corresponding video surveillance data, and the confidence parameter is used to measure the degree to which the personal information can be used to correctly indicate the corresponding pedestrian;

[0147] Filtering out a plurality of credible personnel information from each personnel information group, wherein a confidence parameter corresponding to each credible personnel information is greater than or equal to a preset confidence threshold;

[0148] For each personnel information group, the center point coordinates of the personnel coordinate information corresponding to all the credible personnel information in the personnel information group are calculated, and the center point coordinates are determined as the comprehensive coordinate information corresponding to the personnel information group.

[0149] In this optional embodiment, the monitoring device is a video monitoring device, and the monitoring data is video monitoring data. For video monitoring data, the position where the same person appears in the viewing angle of different monitoring devices is different. If the person appears at the edge or far away from the center point in some monitoring devices, its coordinates are not accurate due to distortion and image clarity. Therefore, in order to better determine more accurate personnel coordinate information from existing data, this optional embodiment first determines the clarity of the same person identified in different monitoring devices. Optionally, the judgment of clarity can be calculated according to the corresponding clarity analysis algorithm, which is not limited by the embodiment of the present invention. For personnel with high recognition clarity, it is considered to be more credible. Finally, based on the coordinates of some highly credible personnel screened out, the center point is calculated and determined as comprehensive coordinate information.

[0150] It can be seen that this optional embodiment can determine the confidence parameter corresponding to the personnel information based on the recognition clarity of the personnel information in the video surveillance data corresponding to the personnel information; screen out multiple credible personnel information from each personnel information group, wherein the confidence parameter corresponding to each credible personnel information is greater than or equal to a preset confidence threshold; for each personnel information group, calculate the center point coordinates of the personnel coordinate information corresponding to all the credible personnel information in the personnel information group, and determine the center point coordinates as the comprehensive coordinate information corresponding to the personnel information group, thereby further improving the accuracy of personnel position determination, and then improving the accuracy of construction site evaluation.

[0151] Embodiment 3

[0152] See also Figure 5 , Figure 5 Schematic diagram of a construction site assessment device based on personnel distribution analysis disclosed in an embodiment of the present invention. Figure 5 As shown, the construction site assessment device based on personnel distribution analysis may include:

[0153] The data acquisition module 301 is used to acquire, for each target area in the target building site, monitoring data acquired by all monitoring devices corresponding to the target area at a target time; wherein the monitoring data may include one or more of video surveillance data, thermal imaging data, and radar data;

[0154] The regional analysis module 302 is used to determine the regional personnel distribution information in each target area in the target building site according to all monitoring data corresponding to the target area at the target time;

[0155] A site analysis module 303 is used to determine the building personnel distribution information corresponding to the target building site according to the regional personnel distribution information in all target areas within the target building site;

[0156] The site evaluation module 304 is used to obtain a site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site.

[0157] It can be seen that the construction site assessment device based on personnel distribution analysis in the embodiment of the present invention can determine the regional personnel distribution information in the target area for each target area in the target construction site according to all monitoring data corresponding to the target area at the target time; determine the building personnel distribution information corresponding to the target construction site according to the regional personnel distribution information of all target areas in the target construction site; and obtain the site assessment result of the target construction site based on the analysis of the building personnel distribution information corresponding to the target construction site. The data used for the target construction site assessment in the embodiment of the present invention is automatically acquired from the monitoring device, so it is more efficient. At the same time, compared with the method of obtaining data by manual sampling, the monitoring device is distributed in most positions of the target construction site, and the most comprehensive data can be obtained, so the obtained data is more accurate. In summary, the embodiment of the present invention improves the accuracy and efficiency of construction site assessment.

[0158] In an optional embodiment, the specific manner in which the site evaluation module 304 obtains the site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site may include:

[0159] Evenly distributed sampling points are set in the target building site, and according to the building personnel distribution information corresponding to the target building site, the personnel distribution density in the preset sampling area around each sampling point is obtained;

[0160] According to the personnel distribution density corresponding to all sampling points in the target building site, a personnel distribution heat map corresponding to the target building site is generated;

[0161] Based on the analysis of the personnel distribution heat map corresponding to the target building site, the site evaluation result of the target building site is obtained.

[0162] It can be seen that this optional embodiment can set evenly distributed sampling points in the target building site, obtain the personnel distribution density in the preset sampling area around each sampling point according to the building personnel distribution information corresponding to the target building site; and generate a personnel distribution heat map corresponding to the target building site according to the personnel distribution density corresponding to all sampling points in the target building site. The heat map can intuitively and efficiently reflect the personnel distribution of the target building site, thereby further improving the efficiency of the building site assessment.

[0163] In another optional embodiment, Figure 6 As shown, the device may also include:

[0164] The timing acquisition module 305 is used to obtain the construction personnel distribution information corresponding to the target construction site at a plurality of preset reference target times;

[0165] The trajectory analysis module 306 is used to determine the trajectory information of the construction personnel corresponding to the target construction site in a reference time period according to the distribution information of the construction personnel corresponding to all reference target moments of the target construction site. The reference time period may include all reference target moments. The trajectory information of the construction personnel is used to represent the movement of the positions of all pedestrians in the target construction site over time.

[0166] The node analysis module 307 is used to calculate the average waiting time corresponding to all connection nodes in the target building site according to the construction personnel trajectory information corresponding to the target building site in the reference time period; wherein the connection node is used to represent the connection channel between any two target areas, and the average waiting time represents the average waiting time length of all pedestrians passing through the corresponding connection node;

[0167] The satisfaction evaluation module 308 is used to obtain the personnel satisfaction evaluation result corresponding to the target building site according to the average waiting time corresponding to all the connection nodes in the target building site.

[0168] The average waiting time represents the average waiting time length of all pedestrians passing through the corresponding connection nodes.

[0169] It can be seen that this optional embodiment can calculate the average waiting time corresponding to all connection nodes in the target construction site based on the construction personnel trajectory information corresponding to the target construction site within the reference time period; and obtain the personnel satisfaction evaluation result corresponding to the target construction site based on the average waiting time corresponding to all connection nodes in the target construction site, thereby evaluating the detected site in more detail.

[0170] In yet another optional embodiment, Figure 6 As shown, the device may also include:

[0171] A path determination module 309 is used to determine a main path in the target construction site according to the trajectory information of the construction personnel in the target construction site within the reference time period, wherein the number of all pedestrians moving along the main path in the target construction site exceeds a preset number threshold;

[0172] The path analysis module 310 is used to determine the path trajectory information corresponding to each main path in the target construction site according to the construction personnel trajectory information and the main path information of the target construction site within the reference time period, and the path trajectory information is used to represent the movement of the positions of all pedestrians on the corresponding main path over time;

[0173] The bifurcation analysis module 311 is used to determine, for each main path in the target building site, the average decision time corresponding to each bifurcation position on the main path according to the path trajectory information corresponding to the main path, wherein the average decision time is used to represent the average length of stay of all pedestrians on the main path passing through the corresponding bifurcation position;

[0174] The path evaluation module 312 is used to obtain, for each main path in the target building site, a design rationality evaluation result corresponding to the main path in the target building site according to the average decision time corresponding to all branching positions on the main path.

[0175] It can be seen that this optional embodiment can determine, for each main path in the target construction site, the average decision time corresponding to each branching position on the main path based on the path trajectory information corresponding to the main path; for each main path in the target construction site, based on the average decision time corresponding to all branching positions on the main path, obtain the design rationality evaluation result corresponding to the main path in the target construction site, thereby evaluating the detected site in more detail.

[0176] In another optional embodiment, the regional analysis module 302 determines, for each target area in the target building site, based on all monitoring data corresponding to the target area at the target time, a specific method of regional personnel distribution information in the target area, which may include:

[0177] For each target area within the target building site, identify the personnel information in all monitoring data corresponding to the target area at the target time, and project the centroid of the pedestrian corresponding to each personnel information to the ground to obtain the personnel coordinate information corresponding to each personnel information; determine the regional personnel distribution information within the target area based on the personnel coordinate information corresponding to all personnel information; wherein the personnel information may at least include personnel identification information.

[0178] It can be seen that in the construction site assessment method based on personnel distribution analysis in the embodiment of the present invention, the data used for evaluating the target construction site is automatically acquired from the monitoring device, so it is more efficient. At the same time, compared with the method of obtaining data by manual sampling, the monitoring devices are distributed in most locations of the target construction site, and the most comprehensive data can be obtained. In the data processing process, the present invention uniformly projects the center of mass of the pedestrian corresponding to each personnel information to the ground, further improving the accuracy of data processing. In summary, the embodiment of the present invention improves the accuracy and efficiency of construction site assessment.

[0179] In another optional embodiment, the specific manner in which the regional analysis module 302 determines the regional personnel distribution information in each target area in the target building site according to the personnel coordinate information corresponding to all the personnel information may include:

[0180] For each target area within the target building site, all personnel information corresponding to the target area is grouped to obtain a number of personnel information groups, wherein all personnel information within each personnel information group is judged to be the same pedestrian; for each personnel information group, based on the personnel coordinate information corresponding to all personnel information within the personnel information group, the comprehensive coordinate information corresponding to the personnel information group is determined, and the comprehensive coordinate information is used to represent the coordinate information of the target pedestrian represented by the corresponding personnel information group; based on the comprehensive coordinate information corresponding to all personnel information groups, the regional personnel distribution information within the target area is determined.

[0181] It can be seen that this optional embodiment can group all the personnel information corresponding to each target area in the target construction site to obtain a number of personnel information groups. For each personnel information group, the comprehensive coordinate information corresponding to the personnel information group is determined based on the personnel coordinate information corresponding to all the personnel information in the personnel information group. Based on the comprehensive coordinate information corresponding to all the personnel information groups, the regional personnel distribution information in the target area is determined, thereby improving the accuracy of determining the personnel coordinate information and further improving the accuracy of the construction site evaluation.

[0182] In yet another optional embodiment, the monitoring device is a video monitoring device, the monitoring data is video monitoring data, and the specific manner in which the regional analysis module 302 determines, for each personnel information group, the comprehensive coordinate information corresponding to the personnel information group according to the personnel coordinate information corresponding to all the personnel information in the personnel information group, may include:

[0183] For each piece of personal information in each personal information group, a confidence parameter corresponding to the personal information is determined according to the recognition clarity of the personal information in the video surveillance data corresponding to the personal information; wherein the recognition clarity is used to indicate the clarity of the personal information in the corresponding video surveillance data, and the confidence parameter is used to measure the degree to which the personal information can be used to correctly indicate the corresponding pedestrian;

[0184] Filtering out a plurality of credible personnel information from each personnel information group, wherein a confidence parameter corresponding to each credible personnel information is greater than or equal to a preset confidence threshold;

[0185] For each personnel information group, the center point coordinates of the personnel coordinate information corresponding to all the credible personnel information in the personnel information group are calculated, and the center point coordinates are determined as the comprehensive coordinate information corresponding to the personnel information group.

[0186] It can be seen that this optional embodiment can determine the confidence parameter corresponding to the personnel information based on the recognition clarity of the personnel information in the video surveillance data corresponding to the personnel information; screen out multiple credible personnel information from each personnel information group, wherein the confidence parameter corresponding to each credible personnel information is greater than or equal to a preset confidence threshold; for each personnel information group, calculate the center point coordinates of the personnel coordinate information corresponding to all the credible personnel information in the personnel information group, and determine the center point coordinates as the comprehensive coordinate information corresponding to the personnel information group, thereby further improving the accuracy of personnel position determination, and then improving the accuracy of construction site evaluation.

[0187] Embodiment 4

[0188] See also Figure 7 , Figure 7 FIG. 1 is a schematic diagram of another construction site assessment device based on personnel distribution analysis disclosed in an embodiment of the present invention. Figure 7 As shown, the construction site assessment device based on personnel distribution analysis may include:

[0189] A memory 401 storing executable program codes;

[0190] a processor 402 coupled to the memory 401;

[0191] The processor 402 calls the executable program code stored in the memory 401 to execute the steps in the construction site assessment method based on personnel distribution analysis described in the first or second embodiment of the present invention.

[0192] Embodiment 5

[0193] An embodiment of the present invention discloses a computer storage medium storing computer instructions. When the computer instructions are called, they are used to execute the steps of the construction site assessment method based on personnel distribution analysis described in the first or second embodiment of the present invention.

[0194] Embodiment 6

[0195] An embodiment of the present invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to enable a computer to execute the steps in the construction site assessment method based on personnel distribution analysis described in Embodiment 1 or Embodiment 2.

[0196] The device embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, i.e., they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative work.

[0197] Through the specific description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution can be essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, and the storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable rewritable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0198] Finally, it should be noted that the method, device, and storage medium for assessing a construction site based on personnel distribution analysis disclosed in the embodiments of the present invention are only preferred embodiments of the present invention, and are only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A construction site assessment method based on personnel distribution analysis, characterized in that: The method comprises: For each target area in the target building site, monitoring data acquired by all monitoring devices corresponding to the target area at the target time is acquired; wherein the monitoring data includes one or more of video surveillance data, thermal imaging data, and radar data; For each of the target areas within the target building site, determine regional personnel distribution information within the target area according to all the monitoring data corresponding to the target area at the target time; Determine the construction personnel distribution information corresponding to the target construction site according to the regional personnel distribution information in all the target areas within the target construction site; Based on the analysis of the construction personnel distribution information corresponding to the target construction site, a site evaluation result of the target construction site is obtained.

2. The construction site assessment method based on personnel distribution analysis according to claim 1 is characterized in that: The obtaining of a site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site includes: Evenly distributed sampling points are set in the target building site, and according to the building personnel distribution information corresponding to the target building site, the personnel distribution density in the preset sampling area around each sampling point is obtained; Generating a personnel distribution heat map corresponding to the target building site according to the personnel distribution density corresponding to all the sampling points in the target building site; Based on the analysis of the personnel distribution heat map corresponding to the target construction site, a site evaluation result of the target construction site is obtained.

3. The construction site assessment method based on personnel distribution analysis according to claim 2 is characterized in that: The method further comprises: Acquire the construction personnel distribution information corresponding to the target construction site at a plurality of preset reference target times; Determine, according to the construction personnel distribution information corresponding to the target construction site at all the reference target moments, the construction personnel trajectory information corresponding to the target construction site within a reference time period, the reference time period including all the reference target moments, the construction personnel trajectory information being used to represent the movement of the positions of all pedestrians in the target construction site over time; According to the trajectory information of the construction personnel corresponding to the target construction site within the reference time period, the average waiting time corresponding to all the connection nodes in the target construction site is calculated; wherein the connection node is used to represent the connection channel between any two target areas, and the average waiting time represents the average waiting time length of all pedestrians passing through the corresponding connection node; According to the average waiting time corresponding to all the connection nodes in the target construction site, a personnel satisfaction evaluation result corresponding to the target construction site is obtained.

4. The construction site assessment method based on personnel distribution analysis according to claim 3 is characterized in that: The method further comprises: Determine a main path in the target construction site according to the construction personnel trajectory information of the target construction site within the reference time period, wherein the number of all pedestrians moving along the main path in the target construction site exceeds a preset number threshold; Determine path trajectory information corresponding to each of the main paths in the target construction site according to the construction personnel trajectory information and the main path information of the target construction site within the reference time period, wherein the path trajectory information is used to indicate the movement of positions of all pedestrians on the corresponding main path over time; For each of the main paths within the target building site, determine the average decision time corresponding to each branching position on the main path according to the path trajectory information corresponding to the main path, wherein the average decision time is used to represent the average length of stay of all pedestrians on the main path passing through the corresponding branching position; For each of the main paths in the target construction site, a design rationality evaluation result corresponding to the main path in the target construction site is obtained according to the average decision time corresponding to all the branching positions on the main path.

5. The construction site assessment method based on personnel distribution analysis according to claim 1, characterized in that: For each of the target areas in the target building site, determining the regional personnel distribution information in the target area according to all the monitoring data corresponding to the target area at the target time, including: For each of the target areas within the target building site, the personnel information in all the monitoring data corresponding to the target area at the target time is identified, and the centroid of the pedestrian corresponding to each of the personnel information is projected to the ground to obtain the personnel coordinate information corresponding to each of the personnel information; based on the personnel coordinate information corresponding to all the personnel information, the regional personnel distribution information within the target area is determined; wherein the personnel information at least includes personnel identification information.

6. The construction site assessment method based on personnel distribution analysis according to claim 5 is characterized in that: For each of the target areas in the target building site, determining the regional personnel distribution information in the target area according to the personnel coordinate information corresponding to all the personnel information includes: For each of the target areas within the target building site, all the personnel information corresponding to the target area are grouped to obtain a number of personnel information groups, wherein all the personnel information within each personnel information group is judged to be the same pedestrian; for each of the personnel information groups, based on the personnel coordinate information corresponding to all the personnel information within the personnel information group, the comprehensive coordinate information corresponding to the personnel information group is determined, and the comprehensive coordinate information is used to represent the coordinate information of the target pedestrian represented by the corresponding personnel information group; based on the comprehensive coordinate information corresponding to all the personnel information groups, the regional personnel distribution information within the target area is determined.

7. The construction site assessment method based on personnel distribution analysis according to claim 6 is characterized in that: The monitoring device is a video monitoring device, the monitoring data is video monitoring data, and, for each of the personnel information groups, determining the comprehensive coordinate information corresponding to the personnel information group according to the personnel coordinate information corresponding to all the personnel information in the personnel information group, comprises: For each piece of the personnel information in each of the personnel information groups, a confidence parameter corresponding to the personnel information is determined according to the recognition clarity of the personnel information in the video surveillance data corresponding to the personnel information; wherein the recognition clarity is used to indicate the clarity of the personnel information in the corresponding video surveillance data, and the confidence parameter is used to measure the degree to which the personnel information can be used to correctly indicate the corresponding pedestrian; Filtering out a plurality of credible personnel information from each of the personnel information groups, wherein a confidence parameter corresponding to each of the credible personnel information is greater than or equal to a preset confidence threshold; For each of the personnel information groups, the center point coordinates of the personnel coordinate information corresponding to all of the trusted personnel information in the personnel information group are calculated, and the center point coordinates are determined to be the comprehensive coordinate information corresponding to the personnel information group.

8. A construction site assessment device based on personnel distribution analysis, characterized in that: The device includes: A data acquisition module, for acquiring, for each target area in the target building site, monitoring data acquired by all monitoring devices corresponding to the target area at a target time; wherein the monitoring data includes one or more of video surveillance data, thermal imaging data, and radar data; A regional analysis module, for determining, for each of the target areas within the target building site, regional personnel distribution information within the target area according to all the monitoring data corresponding to the target area at the target time; A site analysis module, used to determine the building personnel distribution information corresponding to the target building site according to the regional personnel distribution information in all the target areas within the target building site; The site evaluation module is used to obtain a site evaluation result of the target construction site based on the analysis of the construction personnel distribution information corresponding to the target construction site.

9. A construction site assessment device based on personnel distribution analysis, characterized in that: The device includes: a memory storing executable program code; a processor coupled to the memory; the processor calls the executable program code stored in the memory to execute the construction site assessment method based on personnel distribution analysis as described in any one of claims 1-7.

10. A computer storage medium, characterized in that: The computer storage medium stores computer instructions, and when the computer instructions are called, they are used to execute the construction site assessment method based on personnel distribution analysis as described in any one of claims 1-7.

Images