A building construction feedback system based on on-site real-time monitoring

Abstract

The present invention relates to the technical field of construction monitoring, and particularly to a building construction feedback system based on on-site real-time monitoring, including a regional division unit for dividing the construction site into areas of different levels and setting corresponding isolation facilities and warning signs; a monitoring unit for performing real-time monitoring on each divided area and collecting real-time monitoring data; a central control unit for calculating the corresponding risk evaluation value according to the monitoring data of each divided area, determining the monitoring level, and adjusting the monitoring deployment method; and a worker safety evaluation unit for calculating the safety evaluation value of a single worker to determine whether the construction behavior of a single worker meets the standards. The present invention improves the monitoring accuracy of project construction personnel while ensuring the monitoring accuracy of on-site construction.

Description

Technical Field

[0001] The present invention relates to the technical field of construction monitoring, and in particular to a building construction feedback system based on on-site real-time monitoring. Background Art

[0002] In recent years, with the increase in super high-rise buildings and large-scale urban complex projects, these projects have complex functions, high technical requirements, long time spans, and many participating units, posing higher requirements for the coordination and management of the construction site. The traditional building construction quality feedback method can no longer meet the current needs. Therefore, the adoption of a real-time monitoring and intelligent positioning feedback system has become a trend. Through devices such as sensors and cameras, various data on the construction site, such as temperature, humidity, and pressure, can be obtained in real time, and the positions of construction workers can be tracked to improve the safety and efficiency of the construction site. In addition, by using big data and artificial intelligence technologies, the collected data can be analyzed and processed to achieve comprehensive monitoring and management of the construction process. In short, the building construction feedback system based on on-site real-time monitoring integrates advanced sensing technologies and intelligent analysis algorithms to achieve all-round, real-time monitoring and data management of the construction site, thereby improving the construction quality and management level and ensuring the safety and smooth progress of the project.

[0003] Chinese Patent Publication No.: CN116895142B discloses a global monitoring method and system for building construction. The invention provides a global monitoring method and system for building construction, which relates to the technical field of intelligent control. It reads the real-time construction content to adjust the safety level of the initial area, sets monitoring parameters to control a fixed monitoring device for image acquisition and recognition to generate a feature recognition result, adjusts the monitoring parameters in combination with the real-time construction content, acquires and recognizes a moving feature recognition result, acquires construction sounds to obtain a construction sound recognition result, and comprehensively analyzes for construction early warning, solving the technical problems in the prior art that the flexibility and rigor of the monitoring method for building construction are insufficient, the monitoring dimension is not comprehensive enough, and the monitoring control parameters do not fit well with the actual construction conditions, resulting in inaccurate and incomplete monitoring data and drawbacks in construction risk management. For multiple monitoring dimensions, a compatible monitoring processing mode and monitoring data analysis standard are determined, and multi-dimensional comprehensive analysis and determination are performed to improve the monitoring coverage and ensure the accuracy and completeness of monitoring.

[0004] It can be seen that the global monitoring method and system for building construction have the following problems: Although the invention adjusts the safety level of the initial area through real-time construction content and conducts construction early warning in combination with the moving feature recognition result and the construction sound recognition result to ensure the accuracy and completeness of monitoring, the monitoring accuracy of the project construction personnel is low, and the safety of the project construction personnel cannot be guaranteed. Summary of the Invention

[0005] To this end, the present invention provides a building construction feedback system based on on-site real-time monitoring to overcome the problem in the prior art that only the monitoring accuracy of the construction site is guaranteed while the monitoring accuracy of project construction personnel is insufficient.

[0006] To achieve the above object, the present invention provides a building construction feedback system based on on-site real-time monitoring, including:

[0007] A regional division unit for dividing the construction site into different levels of regions, including a key construction area, a basic construction area, and an auxiliary operation area;

[0008] A monitoring unit connected to the regional division unit for performing real-time monitoring on each divided region and collecting real-time monitoring data, where the monitoring data includes worker safety monitoring data, construction equipment monitoring data, and construction process monitoring data;

[0009] A central control unit connected to the monitoring unit for calculating a risk evaluation value corresponding to each divided region based on the monitoring data, determining a monitoring level according to the risk evaluation value, and determining whether the control method corresponding to the monitoring level meets the standard according to the difference evaluation value of the construction process, and adjusting the number of monitoring devices or the monitoring image resolution based on the difference value of the difference evaluation value under the condition that the control method does not meet the standard, where the monitoring levels include first level, second level, and third level;

[0010] A worker safety evaluation unit connected to the monitoring unit and the central control unit for calculating a safety evaluation value of a single worker to determine whether the construction behavior of a single worker meets the standard, counting the proportion of the number of non-compliant construction behaviors of a single worker, and determining whether the safety training process meets the standard based on the proportion.

[0011] Further, the formula for the central control unit to calculate the risk evaluation value is as follows:

[0012]

[0013] Wherein, L represents the risk evaluation value, n represents the total number of devices in a single region, ai represents the probability of the i-th device malfunctioning, and wi represents the degree of influence of the i-th device malfunctioning on the construction progress.

[0014] Further, the central control unit determines the monitoring level based on the risk evaluation value, where

[0015] if the risk evaluation value is greater than the first preset risk evaluation value, the central control unit determines that the monitoring level is the first level;

[0016] If the risk evaluation value is less than or equal to the first preset risk evaluation value and greater than the second preset risk evaluation value, the central control unit determines that the monitoring level is level two;

[0017] If the risk evaluation value is less than or equal to the second preset risk evaluation value, the central control unit determines that the monitoring level is level three.

[0018] Further, the central control unit acquires images of the same construction process from different angles at the determined monitoring level, extracts image features, and calculates a difference evaluation value based on the corresponding image feature deviation.

[0019] Further, the central control unit determines whether the layout method of the monitoring conforms to the standard based on the difference evaluation value.

[0020] If the difference evaluation value is greater than the preset difference evaluation value, the central control unit determines that the layout method does not conform to the standard;

[0021] If the difference evaluation value is less than or equal to the preset difference evaluation value, the central control unit determines that the layout method conforms to the standard.

[0022] Further, under the condition that the layout method does not conform to the standard, the central control unit determines to adjust the number of monitoring devices or the monitoring image resolution based on the difference value of the difference evaluation value.

[0023] If the difference value of the difference evaluation value is greater than the preset difference value of the evaluation value, the central control unit determines to adjust the number of monitoring devices;

[0024] If the difference value of the difference evaluation value is less than or equal to the preset difference value of the evaluation value, the central control unit determines to adjust the monitoring image resolution.

[0025] Further, the central control unit sets several adjustment methods for the number of monitoring devices, and each adjustment method has a different adjustment range for the number of monitoring devices.

[0026] Further, the central control unit sets several adjustment methods for the monitoring image resolution, and each adjustment method has a different adjustment range for the monitoring image resolution.

[0027] Further, the worker safety evaluation unit determines whether the construction behavior of a single worker conforms to the standard based on the safety evaluation value.

[0028] If the safety evaluation value is greater than or equal to the preset safety evaluation value, the worker safety evaluation unit determines that the construction behavior of a single worker conforms to the standard;

[0029] If the safety evaluation value is less than the preset safety evaluation value, the construction behavior of a single worker is determined by the worker safety evaluation unit not to meet the standard.

[0030] Further, the worker safety evaluation unit determines that the safety training process does not meet the standard under the condition that the quantity ratio is less than the preset quantity ratio, and sets several adjustment methods for the safety training process based on the quantity ratio difference under the condition that the safety training process does not meet the standard, and each adjustment method has a different adjustment range for the safety training process

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting a regional division unit, the construction site is divided into areas of different levels, preventing construction personnel in non-corresponding areas from straying in, and facilitating construction management personnel to quickly and accurately view the situation of key areas; calculating the risk evaluation value corresponding to each area based on areas of different levels, objectively evaluating the risk situation according to the characteristics of each level of area, and determining the monitoring level based on the risk evaluation value, improving the use efficiency of the monitoring system while ensuring safety; under the condition that the monitoring system meets the standard, capturing the integrity of the safety protection equipment worn by workers and the movement trajectories of workers to determine whether the safety protection of workers meets the standard and whether the safety training process meets the standard, improving the monitoring accuracy of project construction personnel while ensuring the monitoring accuracy of on-site construction.

[0032] Further, the present invention calculates the risk evaluation value through a formula. The equipment existing in each divided area and its influence degree are different. Calculating the risk evaluation value based on this characteristic can objectively evaluate the risk level of each area, and determining the monitoring level based on the risk level so as to conduct targeted monitoring layout, improving the monitoring accuracy of project construction personnel while ensuring the monitoring accuracy of on-site construction.

[0033] Further, the present invention obtains images from different angles of the same construction process at the determined monitoring level, extracts image features and compares them, calculates the image feature deviation degree to determine whether the layout method of the monitoring equipment meets the standard, and determines the adjustment method based on the difference evaluation value difference under the condition of determining non-compliance, thereby improving the monitoring accuracy of the construction site.

[0034] Further, under the condition that the layout method of the monitoring meets the standard, the present invention further accurately monitors the construction state of workers, determines the safety evaluation value of a single worker to determine the degree of risk of a single worker by the integrity of the safety protection equipment worn by workers and the movement trajectories of workers, and counts the quantity ratio of workers with a high degree of risk, objectively and accurately evaluating the safety training process, and making adjustments based on the quantity ratio difference under the condition that the safety training process does not meet the standard, thereby improving the monitoring accuracy of project construction personnel while ensuring the monitoring accuracy of on-site construction. Description of the Drawings

[0035] Figure 1 It is a structural block diagram of the building construction feedback system based on on-site real-time monitoring according to an embodiment of the present invention;

[0036] Figure 2 It is a flowchart for determining the monitoring level according to an embodiment of the present invention;

[0037] Figure 3 It is a flowchart for determining whether the layout method of monitoring meets the standard according to an embodiment of the present invention;

[0038] Figure 4 It is a flowchart for determining the adjustment of monitoring parameters according to an embodiment of the present invention. Detailed Embodiments

[0039] In order to make the objectives and advantages of the present invention more clear and understandable, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0041] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0042] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] Please refer to Figure 1 as shown, which is a structural block diagram of the building construction feedback system based on on-site real-time monitoring according to an embodiment of the invention.

[0044] An embodiment of the present invention provides a building construction feedback system based on on-site real-time monitoring, including:

[0045] An area division unit is used to divide the construction site into areas of different levels and set corresponding isolation facilities and warning signs, including a key construction area, a basic construction area, and an auxiliary operation area;

[0046] A monitoring unit, which is connected to the area division unit, is used to monitor each divided area in real time and collect real-time monitoring data. The monitoring data includes worker safety monitoring data, construction equipment monitoring data, and construction process monitoring data;

[0047] A central control unit, which is connected to the monitoring unit, is used to calculate the corresponding risk evaluation value according to the monitoring data of each divided area, determine the monitoring level according to the risk evaluation value, and determine whether the control method corresponding to the monitoring level meets the standard according to the difference evaluation value of the construction process at the monitoring level. And, under the condition that the control method does not meet the standard, determine to adjust the number of monitoring devices or the monitoring image resolution based on the difference evaluation value difference. The monitoring levels include level one, level two, and level three;

[0048] A worker safety evaluation unit, which is connected to the monitoring unit and the central control unit, is used to calculate the safety evaluation value of a single worker to determine whether the construction behavior of a single worker meets the standard, count the proportion of the number of non-compliant construction behaviors of a single worker, and determine whether the safety training process meets the standard based on the proportion.

[0049] Specifically, in the embodiment of the present invention, the isolation facility is, for example, a fence, and is not specifically limited. The warning sign is determined according to the actual situation and is not specifically limited.

[0050] Specifically, in the embodiment of the present invention, the worker safety monitoring data includes the wearing situation of the worker's safety protection equipment and the number of no-go areas in the worker's action trajectory; the monitoring data of the construction equipment includes the operating parameters of all equipment at the project construction site, such as the operating route of the excavator and the working range of the tower crane, which are not specifically limited.

[0051] Specifically, in the present invention, by setting an area division unit, the construction site is divided into areas of different levels, preventing construction personnel in non-corresponding areas from straying in, and facilitating construction management personnel to quickly and accurately view the situation of key areas; calculating the risk evaluation value of the corresponding area based on areas of different levels, objectively evaluating the risk situation according to the characteristics of each level of area, and determining the monitoring level according to the risk evaluation value, improving the use efficiency of the monitoring system while ensuring safety; under the condition that the monitoring system meets the standard, capturing the integrity of the worker's safety protection equipment wearing and the worker's action trajectory to determine whether the worker's safety protection meets the standard and determining whether the safety training process meets the standard, improving the monitoring accuracy of project construction personnel while ensuring the monitoring accuracy of the on-site construction.

[0052] Specifically, the formula for the central control unit to calculate the risk evaluation value is as follows:

[0053]

[0054] Among them, L represents the risk evaluation value, n represents the total number of devices in a single area, ai represents the probability of the i-th device failing, and wi represents the degree of influence of the failure of the i-th device on the construction progress.

[0055] Specifically, the probability of a device failing is determined based on the historical number of failures and historical working hours, and no specific limitation is provided; the degree of influence of a device failure on the construction progress, for example, in a key construction area, the influence degree of a tower crane failure is 20%, the influence degree of a concrete mixer truck failure is 30%, and the influence degree of a steel bar cutting machine failure is, for example, 10%, and no specific limitation is provided.

[0056] Please refer to Figure 2 as shown, which is the flowchart for determining the monitoring level in the embodiment of the present invention.

[0057] Specifically, the central control unit determines the monitoring level based on the risk evaluation value, where

[0058] if the risk evaluation value is greater than 70% of the first preset risk evaluation value, the central control unit determines that the monitoring level is level one;

[0059] if the risk evaluation value is less than or equal to 70% of the first preset risk evaluation value and greater than 50% of the second preset risk evaluation value, the central control unit determines that the monitoring level is level two;

[0060] if the risk evaluation value is less than or equal to 50% of the second preset risk evaluation value, the central control unit determines that the monitoring level is level three.

[0061] Specifically, the layout method for level one monitoring, for example, uses high-definition cameras and infrared night vision devices, the monitoring range coverage rate is 100%, warning signs and warning lights are set in highly dangerous areas, and regular inspections are carried out in cooperation with special personnel. An emergency plan is formulated and practiced for possible major accidents, and no specific limitation is provided; the layout method for level two monitoring, for example, arranges monitoring devices for monitoring key parts and links, and regularly checks and maintains the monitoring devices and safety facilities, and no specific limitation is provided; the layout method for level three monitoring, for example, uses conventional cameras to monitor key areas, and no specific limitation is provided.

[0062] Specifically, the present invention calculates the risk evaluation value through a formula. The devices existing in each divided area and their influence degrees are all different. Based on this characteristic, calculating the risk evaluation value can objectively evaluate the risk level of each area, and determine the monitoring level based on the risk level, so as to conduct targeted monitoring and control, improving the monitoring accuracy of project construction personnel while ensuring the monitoring accuracy of on-site construction.

[0063] Specifically, the central control unit acquires images of the same construction process from different angles at the determined monitoring level, extracts image features, and calculates the difference evaluation value based on the corresponding image feature offset degree.

[0064] Specifically, image features such as the verticality of a tower crane and the construction position are not specifically limited; the offset degree is determined according to specific image features. For example, the offset angle between the tower body of the tower crane and the vertical direction, the deviation of the relative distance or relative direction between construction positions are not specifically limited. Corresponding offset degrees are preset for the offset angle values. For example, the offset degree for an offset angle in the range of 0 - 10° is 0, the offset degree for an offset angle in the range of 10 - 15° is 1, and the offset degree for an offset angle greater than 15° is 2; corresponding offset degrees are preset for the distance deviation of the relative distance and the angle deviation of the relative direction. For example, the offset degree for a distance deviation in the range of 0 - 1 cm is 0, the offset degree for a distance deviation in the range of 1 - 3 cm is 1, and the offset degree for a distance deviation greater than 3 cm is 2; the offset degree for an angle deviation in the range of 0 - 30° is 0, the offset degree for an angle deviation in the range of 30 - 60° is 1, and the offset degree for an angle deviation greater than 60° is 2, which are not specifically limited.

[0065] Specifically, the difference evaluation value is the sum of each offset degree.

[0066] Please refer to Figure 3 as shown, which is a flowchart for the present invention embodiment to determine whether the monitoring and control layout method meets the standard.

[0067] Specifically, the central control unit determines whether the monitoring and control layout method meets the standard based on the difference evaluation value.

[0068] If the difference evaluation value is greater than the preset difference evaluation value 8, the central control unit determines that the layout method does not meet the standard;

[0069] If the difference evaluation value is less than or equal to the preset difference evaluation value 8, the central control unit determines that the layout method meets the standard.

[0070] Please refer to Figure 4 as shown, which is a flowchart for the present invention embodiment to determine the adjustment of monitoring parameters.

[0071] Specifically, under the condition that the layout method does not meet the standard, the central control unit determines to adjust the number of monitoring devices or the monitoring image resolution based on the difference evaluation value difference.

[0072] If the difference value of the difference evaluation value is greater than the preset difference evaluation value 3, the central control unit determines to adjust the number of monitoring devices;

[0073] If the difference value of the difference evaluation value is less than or equal to the preset difference evaluation value 3, the central control unit determines to adjust the monitoring image resolution.

[0074] Specifically, the central control unit sets several adjustment methods for the number of monitoring devices, and each adjustment method has a different adjustment range for the number of monitoring devices.

[0075] Specifically, the central control unit records the ratio of the difference between the difference evaluation value and the preset difference evaluation value to the preset difference evaluation value as the first difference percentage.

[0076] If the first difference percentage is less than or equal to the preset first difference percentage 20%, the central control unit determines to increase the number of monitoring devices by using the first quantity coefficient 1.1.

[0077] If the first difference percentage is greater than the preset first difference percentage 20%, the central control unit determines to increase the number of monitoring devices by using the second quantity coefficient 1.2.

[0078] Specifically, the central control unit sets several adjustment methods for the monitoring image resolution, and each adjustment method has a different adjustment range for the monitoring image resolution.

[0079] Specifically, the central control unit records the ratio of the difference between the preset difference evaluation value and the difference evaluation value to the preset difference evaluation value as the second difference percentage.

[0080] If the second difference percentage is less than or equal to the preset second difference percentage 10%, the central control unit determines to increase the image resolution by using the first resolution coefficient 1.3.

[0081] If the second difference percentage is greater than the preset second difference percentage 10%, the central control unit determines to increase the image resolution by using the second resolution coefficient 1.5.

[0082] Specifically, the present invention obtains images of different angles of the same construction process at the determined monitoring level, extracts image features and compares them, calculates the image feature offset degree to determine whether the layout method of the monitoring devices meets the standard, and determines the adjustment method based on the difference value of the difference evaluation value under the condition of determining non-compliance with the standard, thereby improving the monitoring accuracy of the construction site.

[0083] Specifically, the worker safety evaluation unit determines whether the construction behavior of an individual worker meets the standard based on the safety evaluation value.

[0084] If the safety evaluation value is greater than or equal to the preset safety evaluation value of 90, the worker safety evaluation unit determines that the construction behavior of an individual worker meets the standard.

[0085] If the safety evaluation value is less than the preset safety evaluation value of 90, the worker safety evaluation unit determines that the construction behavior of an individual worker does not meet the standard.

[0086] Specifically, the safety evaluation value is determined according to the integrity of the safety protection equipment worn by workers at the project construction site and the proportion of the number of prohibited areas in the movement trajectory of the workers.

[0087] Specifically, the safety protection equipment of workers includes but is not limited to safety helmets, safety ropes, safety shoes, safety gloves, and protective masks.

[0088] Specifically, the worker safety evaluation unit determines that the safety training process does not meet the standard under the condition that the quantity proportion is less than the preset quantity proportion of 85%, and based on the quantity proportion difference, sets several adjustment methods for the safety training process under the condition that the safety training process does not meet the standard, and each adjustment method has a different adjustment range for the safety training process.

[0089] Specifically, if the quantity proportion difference is greater than the preset quantity proportion difference of 5%, the worker evaluation unit determines to increase the number of safety training sessions by using the first quantity coefficient of 1.5.

[0090] If the quantity proportion difference is less than or equal to the preset quantity proportion difference of 5%, the worker evaluation unit determines to increase the number of safety training sessions by using the second quantity coefficient of 1.3.

[0091] Among them, the adjusted number of safety training sessions is the product of the first quantity coefficient or the second quantity coefficient and the preset number of safety training sessions, where the preset number of safety training sessions is determined based on engineering requirements and is not specifically limited.

[0092] Specifically, under the condition that the layout method of the monitoring meets the standard, the present invention further accurately monitors the construction state of workers, determines the safety evaluation value of an individual worker to determine the degree of risk of an individual worker by the integrity of the safety protection equipment worn by the worker and the movement trajectory of the worker, and counts the proportion of the number of workers with a high degree of risk, objectively and accurately evaluates the safety training process, and makes adjustments based on the quantity proportion difference under the condition that the safety training process does not meet the standard, so as to improve the monitoring accuracy of project construction personnel while ensuring the monitoring accuracy of on-site construction.

[0093] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easily understood by those skilled in the art that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A building construction feedback system based on on-site real-time monitoring, characterized in that, Including: A regional division unit for dividing the construction site into areas of different levels and setting corresponding isolation facilities and warning signs, including a key construction area, a basic construction area, and an auxiliary operation area; A monitoring unit connected to the regional division unit for monitoring each divided area in real time and collecting real-time monitoring data, where the monitoring data includes worker safety monitoring data, construction equipment monitoring data, and construction process monitoring data; A central control unit connected to the monitoring unit for calculating a corresponding risk evaluation value based on the monitoring data of each divided area, determining the monitoring level according to the risk evaluation value, and determining whether the deployment method corresponding to the monitoring level meets the standard based on the difference evaluation value during the construction process, and, under the condition that the deployment method does not meet the standard, determining to adjust the number of monitoring devices or the monitoring image resolution based on the difference value of the difference evaluation value, where the monitoring levels include level one, level two, and level three; A worker safety evaluation unit connected to the monitoring unit and the central control unit for calculating the safety evaluation value of a single worker to determine whether the construction behavior of a single worker meets the standard, counting the proportion of the number of non-compliant construction behaviors of a single worker, and determining whether the safety training process meets the standard based on the proportion; The central control unit obtains images of the same construction process from different angles at the determined monitoring level, extracts image features, and calculates a difference evaluation value based on the corresponding image feature offset degree, where the difference evaluation value is the sum of each image feature offset degree; The central control unit determines whether the deployment method of the monitoring meets the standard based on the difference evaluation value; If the difference evaluation value is greater than the preset difference evaluation value, the central control unit determines that the deployment method does not meet the standard; If the difference evaluation value is less than or equal to the preset difference evaluation value, the central control unit determines that the deployment method meets the standard; Under the condition that the deployment method does not meet the standard, the central control unit determines to adjust the number of monitoring devices or the monitoring image resolution based on the difference value of the difference evaluation value; If the difference value of the difference evaluation value is greater than the preset difference value of the evaluation value, the central control unit determines to adjust the number of monitoring devices; If the difference value of the difference evaluation value is less than or equal to the preset difference value of the evaluation value, the central control unit determines to adjust the monitoring image resolution.

2. The building construction feedback system based on on-site real-time monitoring according to claim 1, characterized in that The formula for the central control unit to calculate the risk evaluation value is as follows: ， Where L represents the risk evaluation value, n represents the total number of devices in a single area, ai represents the probability of the i-th device failing, and wi represents the degree of influence of the failure of the i-th device on the construction progress.

3. The building construction feedback system based on on-site real-time monitoring according to claim 2, wherein The central control unit determines the monitoring level based on the risk evaluation value, where If the risk evaluation value is greater than the first preset risk evaluation value, the central control unit determines that the monitoring level is level one; If the risk evaluation value is less than or equal to the first preset risk evaluation value and greater than the second preset risk evaluation value, the central control unit determines that the monitoring level is level two; If the risk evaluation value is less than or equal to the second preset risk evaluation value, the central control unit determines that the monitoring level is level three.

4. The building construction feedback system based on on-site real-time monitoring according to claim 3, characterized in that, The central control unit sets several adjustment methods for the number of monitoring devices, and each adjustment method has a different adjustment range for the number of monitoring devices.

5. The building construction feedback system based on on-site real-time monitoring according to claim 4, characterized in that The central control unit sets several adjustment methods for the monitoring image resolution, and each adjustment method has a different adjustment range for the monitoring image resolution.

6. The building construction feedback system based on on-site real-time monitoring according to claim 5, characterized in that, The worker safety evaluation unit determines whether the construction behavior of a single worker meets the standard based on the safety evaluation value. If the safety evaluation value is greater than or equal to the preset safety evaluation value, the worker safety evaluation unit determines that the construction behavior of a single worker meets the standard. If the safety evaluation value is less than the preset safety evaluation value, the worker safety evaluation unit determines that the construction behavior of a single worker does not meet the standard.

7. The on-site real-time monitoring-based building construction feedback system according to claim 6, wherein, The worker safety evaluation unit determines that the safety training process does not meet the standard when the quantity ratio is less than the preset quantity ratio, and sets several adjustment methods for the safety training process based on the quantity ratio difference when the safety training process does not meet the standard, and each adjustment method has a different adjustment range for the safety training process.

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