A duct installation positioning management system and method based on data analysis

Abstract

The present invention discloses a duct installation positioning management system and method based on data analysis, and relates to the technical field of equipment installation test management. The present application identifies and analyzes information on a captured video stream of construction personnel installing an air duct system in a target area according to a pipeline layout diagram, judges and extracts characteristic construction parameters generated by corresponding construction personnel when installing each air duct segment constituting the air duct system, and on the basis of the characteristic construction parameters, calculates a characteristic construction index for each air duct segment to measure the actual construction situation of the corresponding construction personnel when installing each air duct segment, thereby realizing classification processing of the air duct segment based on the actual construction situation, thereby laying a data foundation for the rationality analysis of the air leakage sampling inspection process after the air duct system is installed, and improving the acceptance efficiency of the air duct system after installation and the accuracy of the acceptance results.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment installation test management, and in particular to a duct installation positioning management system and method based on data analysis. Background Art

[0002] ‌The rationality of the layout of the duct system is crucial to ensure air circulation, improve system efficiency and indoor air quality. ‌The layout design of the duct system is a combination of science and art. It requires designers to have knowledge of fluid mechanics and reasonably arrange equipment, ducts and accessories to achieve appropriate cross-sections, low initial investment, and reasonable control of wind speed to reduce operating costs. A reasonable duct layout can avoid problems such as air leakage, infiltration and pressure loss, ensure the operating efficiency of the entire system, and minimize noise and vibration to provide a quiet and comfortable indoor environment.

[0003] After the air duct is installed, it is necessary to test the air leakage of the installed air duct, and the air leakage detection must be carried out on the basis of qualified light leakage detection. However, during the air leakage test, the inspection quantity needs to be spot-checked according to the type and material of the air duct system project. There is usually a minimum quantity requirement and the number of square meters of space involved. In order to ensure the authenticity and reliability of the air duct leakage detection, the inspection locations of the air duct are usually randomly designated by the owner or project supervisor. Summary of the invention

[0004] The object of the present invention is to provide a duct installation positioning management system and method based on data analysis to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for duct installation positioning management based on data analysis, the method comprising:

[0006] Step S1: obtaining a pipeline layout diagram designed by an engineer according to a spatial layout diagram of the target area before installing the air duct system in the target area, and constructing a three-dimensional spatial model of the target area according to the spatial layout diagram;

[0007] Step S2: for each duct segment connected through each duct connection point in the duct layout diagram, locate the installation operation area corresponding to the mark in the three-dimensional space model;

[0008] Step S3: Capture the entire process of the construction personnel installing the air duct system in the target area according to the pipeline layout diagram to obtain the installation video stream of the corresponding air duct system; intercept the corresponding installation video sequence of each air duct section, and sort out the corresponding construction position sequence;

[0009] Step S4: identifying and extracting characteristic construction parameters generated during the installation and construction of each air duct segment from the installation video sequence corresponding to each air duct segment, and evaluating and calculating the characteristic construction index of each air duct segment;

[0010] Step S5: performing cluster analysis on all the air duct segments constituting the air duct system based on the corresponding characteristic construction indexes, and dividing all the air duct segments constituting the air duct system into several groups according to different actual installation and construction conditions;

[0011] Step S6: After the air duct system is installed in the target area, the distribution of the air duct sections that are sampled and planned to be tested for air leakage is sorted out, the rationality of the sampling results of the current air leakage test is evaluated, and based on the evaluation results, it is decided whether to adjust the sampling objects.

[0012] Preferably, step S3 includes:

[0013] Step S3-1: for each air duct segment, extract from the installation video stream the installation video sequence from the initial capture of a construction worker appearing in the corresponding installation operation area to carry out installation construction to the completion of the installation construction of each air duct segment by the construction worker;

[0014] Step S3-2: Extract the time period T=[t 1 ,t 2 ], where t 1 is the first timestamp, which is the timestamp corresponding to when the construction personnel first appear in the corresponding installation operation area to carry out installation construction in the installation video stream. 2 is the second timestamp, which is the timestamp corresponding to the completion of the installation of each air duct section captured in the installation video stream;

[0015] Step S3-3: traverse the first timestamps and second timestamps in the time period corresponding to all video streams, and sort the installation video sequences corresponding to all air duct segments according to the time sequence of their corresponding distribution in the installation video stream of the air duct system.

[0016] Preferably, step S4 comprises:

[0017] Step S4-1: Obtain the ranking value i of the installation video sequence corresponding to each air duct segment in all installation video sequences; when i>1, extract the construction transition time Tf=t i 1 -t i-1 2 , where t i 1is the first timestamp in the time period corresponding to the i-th installed video sequence, t i-1 2 is the second timestamp in the time period corresponding to the i-1th installation video sequence. When i=1, the construction transition time Tf=t is extracted for the corresponding air duct segment. i 1 -t e , where t e The timestamp for capturing the entry of construction workers into the installation video stream of the duct system for the first time;

[0018] Step S4-2: accumulating the total number of construction personnel n and the total number of construction equipment m that appear in the installation operation area of ​​each air duct segment during the time period of the installation video sequence corresponding to each air duct segment; obtaining the total number of construction personnel M and the total number of construction equipment G that enter the site for construction during the entire process of installing the air duct system in the target area;

[0019] Step S4-3: Obtain the length F of each air duct segment, and set the length F as the first characteristic construction index β of the corresponding air duct segment 1 =F; calculate the second characteristic construction index β for each duct section 2 =(n / M+m / G)×(Tf+Td), where Td is the total duration of the time period of the installation video sequence corresponding to each duct segment; that is, if the time period T=[t 1 ,t 2 ], the total duration covered is Td=t 2 -t 1 ; The second characteristic construction index β 2 The larger the number, the more complicated the actual construction situation is.

[0020] In the actual duct installation and construction scenario, the actual installation and construction of the duct first depends on its length. For shorter ducts, the construction is relatively simple, mainly involving the production, connection and fixation of the duct. Construction workers need to ensure that the joints of the ducts are well sealed according to the design requirements to avoid air leakage. For longer ducts, the construction process needs to consider more factors, such as the installation position, spacing and fixing method of the brackets. When installing the brackets, first fix the brackets at both ends, and then use the brackets at both ends as a reference to use the wire drawing method to determine the position of the middle bracket to ensure the horizontality and verticality of the duct. In addition, for the connection of longer ducts, special attention should be paid to the connection quality and sealing of the flange to avoid air leakage or air volume loss. The actual installation and construction of the duct depends on the installation space, because the installation of the duct involves the connection of the duct, the setting of the support bracket, and the handling when crossing the building structure. However, these need to be reasonably arranged and implemented according to the specific installation space. For example, when connecting the duct, bolts need to be connected at the four corners of the duct connection. The reasonable installation space of the bolts at the four corners of the duct should be considered during installation. For another example, the inserts or spring clips on the four sides of the duct can be installed on the outside of the duct connection and pushed to the appropriate position using tools, so there is no need to reserve personnel in the remaining areas to enter the required installation operation space.

[0021] Preferably, step S5 includes: dividing all the air duct segments constituting the air duct system into several groups, wherein one group corresponds to one category, and for all the air duct segments in the same group, the numerical deviation between each two air duct segments satisfies that the corresponding first characteristic construction indexes are less than the first deviation threshold, and the numerical deviation between the corresponding second characteristic construction indexes is less than the second deviation threshold.

[0022] Preferably, step S6 comprises:

[0023] Step S6-1: Obtain the total number of groups G obtained by dividing all the air duct segments constituting the air duct system, obtain the total number Q of air duct segments sampled and extracted from the air duct system by the inspectors and planned to carry out air leakage test, and identify the group to which each air duct segment sampled and extracted and planned to carry out air leakage test belongs;

[0024] Step S6-2: accumulating the total number of groups K involved in the Q air duct sections that are sampled and planned to be tested for air leakage, and setting each group involved in the Q air duct sections as a target group;

[0025] Step S6-3: In the Q air duct segments, the total number C of air duct segments belonging to each target group is accumulated respectively, the minimum value Cmin and the maximum value Cmax of the total number C of air duct segments are captured, and the characteristic difference R=1 / (Cmax-Cmin), wherein, when Cmax-Cmin=0, R=1; the sampling index α=(K / G)×R is evaluated and calculated for the sampling result of the current air leakage test;

[0026] Step S6-4: If the sampling index corresponding to the sampling result of the current air leakage test is less than the index threshold, the test personnel are informed to re-sample, that is, the air duct section sampled and planned to be tested for air leakage is adjusted;

[0027] Among them, the larger the ratio of K / G, the more representative the air leakage test result of the sampled duct section is for the overall air leakage situation of the duct system, that is, the higher the rationality of the current sampling object; among them, the smaller the difference between Cmax-Cmin, the more representative the air leakage test result of the sampled duct section is for the overall air leakage situation of the duct system, that is, the higher the rationality of the current sampling object.

[0028] In order to better implement the above method, a duct installation positioning management system is also proposed, which includes a three-dimensional space model construction management module, an installation operation area extraction module, a duct installation construction information management module, a characteristic construction index evaluation management module, a duct system division management module, and a duct installation evaluation management module;

[0029] The three-dimensional space model building management module is used to obtain the pipeline layout diagram designed by the engineer according to the space layout diagram of the target area before installing the air duct system in the target area, and build a three-dimensional space model of the target area according to the space layout diagram;

[0030] The installation operation area extraction module is used to locate the installation operation area corresponding to the mark in the three-dimensional space model for each air duct section connected through each pipeline connection point in the pipeline layout control diagram;

[0031] The duct installation construction information management module is used to capture the entire process of construction personnel installing the duct system in the target area according to the pipeline layout diagram, and obtain the installation video stream of the corresponding duct system; intercept the corresponding installation video sequence of each duct section, and sort out the corresponding construction sequence;

[0032] The characteristic construction index evaluation management module is used to identify and extract the characteristic construction parameters generated during the installation and construction of each air duct segment from the installation video sequence corresponding to each air duct segment, and evaluate and calculate the characteristic construction index of each air duct segment;

[0033] The air duct system division management module is used to carry out cluster analysis on all the air duct segments constituting the air duct system based on the corresponding characteristic construction index, and divide all the air duct segments constituting the air duct system into several groups according to the actual installation and construction conditions;

[0034] The air duct installation assessment management module is used to sort out the distribution of air duct sections that are sampled and planned to be tested for air leakage after the air duct system is installed in the target area, conduct a rationality assessment on the sampling results of the current air leakage test, and decide whether to adjust the sampling objects based on the assessment results.

[0035] Preferably, the air duct installation construction information management module includes a video acquisition management unit and a video interception management unit;

[0036] The video acquisition management unit is used to capture the entire process of the construction personnel installing the air duct system in the target area according to the pipeline layout control diagram, and obtain the installation video stream of the corresponding air duct system;

[0037] The video capture management unit is used to capture the corresponding installation video sequence for each air duct section and sort out the corresponding construction sequence.

[0038] Preferably, the air duct installation assessment management module includes a sampling distribution combing unit and a sampling rationality assessment unit;

[0039] The sampling distribution combing unit is used to comb the distribution of the air duct sections that are sampled and planned to be tested for air leakage after the air duct system is installed in the target area;

[0040] The sampling rationality assessment unit is used to conduct a rationality assessment on the sampling results of the current air leakage test and decide whether to adjust the sampling object based on the assessment results.

[0041] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application identifies and analyzes the information of the video video stream obtained by the construction personnel installing the duct system in the target area according to the pipeline layout diagram, judges and extracts the characteristic construction parameters generated by the corresponding construction personnel when installing the various duct sections that constitute the duct system, and on the basis of the characteristic construction parameters, calculates the characteristic construction index for each duct section to measure the actual construction conditions of the corresponding construction personnel when installing each duct section, and realizes the classification and processing of the duct sections based on the actual construction conditions, thereby laying a data foundation for the rationality analysis of the air leakage sampling process after the duct system is installed, and improving the acceptance efficiency of the duct system after installation and the accuracy of the acceptance results. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1A schematic diagram of a flow chart of a method for air duct installation positioning management based on data analysis of the present invention;

[0043] Figure 2 The present invention is a structural schematic diagram of an air duct installation positioning management system based on data analysis. DETAILED DESCRIPTION

[0044] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0045] Example: Figure 1-Figure 2 As shown, the present invention provides a technical solution, a method for duct installation positioning management based on data analysis, the method comprising:

[0046] Step S1: obtaining a pipeline layout diagram designed by an engineer according to a spatial layout diagram of the target area before installing the air duct system in the target area, and constructing a three-dimensional spatial model of the target area according to the spatial layout diagram;

[0047] Step S2: for each duct segment connected through each duct connection point in the duct layout diagram, locate the installation operation area corresponding to the mark in the three-dimensional space model;

[0048] Among them, a pipeline connection point realizes the connection between at least two air duct sections; wherein, in the process of the installation operation area corresponding to the positioning mark, it can be determined by the manual calibration of the engineer, or the minimum width value and the minimum height value can be pre-set in the three-dimensional space model, and at the specific distribution position of each air duct section, the length of the corresponding air duct section is used as the value of the first dimension, and the minimum width value and the minimum height value are used as the values ​​of the other two dimensions, and the finally generated three-dimensional space is used as the installation operation area for the positioning mark of the air duct section; wherein the value of the minimum height value is limited by the actual height of the target area, and the minimum width value can be taken according to the maximum shoulder width of an adult human body;

[0049] Step S3: Capture the entire process of the construction personnel installing the air duct system in the target area according to the pipeline layout diagram to obtain the installation video stream of the corresponding air duct system; intercept the corresponding installation video sequence of each air duct section, and sort out the corresponding construction position sequence;

[0050] Wherein, step S3 comprises:

[0051] Step S3-1: for each air duct segment, extract from the installation video stream the installation video sequence from the initial capture of a construction worker appearing in the corresponding installation operation area to carry out installation construction to the completion of the installation construction of each air duct segment by the construction worker;

[0052] Step S3-2: Extract the time period T=[t 1 ,t 2 ], where t 1 is the first timestamp, which is the timestamp corresponding to when the construction personnel first appear in the corresponding installation operation area to carry out installation construction in the installation video stream. 2 is the second timestamp, which is the timestamp corresponding to the completion of the installation of each air duct section captured in the installation video stream;

[0053] Step S3-3: traverse the first timestamps and the second timestamps in the time period corresponding to all video streams, and sort the installation video sequences corresponding to all air duct segments according to the time sequence of their corresponding distribution in the installation video stream of the air duct system;

[0054] Step S4: identifying and extracting characteristic construction parameters generated during the installation and construction of each air duct segment from the installation video sequence corresponding to each air duct segment, and evaluating and calculating the characteristic construction index of each air duct segment;

[0055] Wherein, step S4 comprises:

[0056] Step S4-1: Obtain the ranking value i of the installation video sequence corresponding to each air duct segment in all installation video sequences; when i>1, extract the construction transition time Tf=t i 1 -t i-1 2 , where t i 1 is the first timestamp in the time period corresponding to the i-th installed video sequence, t i-1 2 is the second timestamp in the time period corresponding to the i-1th installation video sequence. When i=1, the construction transition time Tf=t is extracted for the corresponding air duct segment. i 1 -t e , where t e The timestamp for capturing the entry of construction workers into the installation video stream of the duct system for the first time;

[0057] Step S4-2: accumulating the total number of construction personnel n and the total number of construction equipment m that appear in the installation operation area of ​​each air duct segment during the time period of the installation video sequence corresponding to each air duct segment; obtaining the total number of construction personnel M and the total number of construction equipment G that enter the site for construction during the entire process of installing the air duct system in the target area;

[0058] Step S4-3: Obtain the length F of each air duct segment, and set the length F as the first characteristic construction index β of the corresponding air duct segment 1 =F;

[0059] Calculate the second characteristic construction index β for each duct segment 2 =(n / M+m / G)×(Tf+Td), where Td is the total duration of the time period of the installation video sequence corresponding to each duct segment; that is, if the time period T=[t 1 ,t 2 ], the total duration covered is Td=t 2 -t 1 ;

[0060] Step S5: performing cluster analysis on all the air duct segments constituting the air duct system based on the corresponding characteristic construction indexes, and dividing all the air duct segments constituting the air duct system into several groups according to different actual installation and construction conditions;

[0061] Wherein, step S5 comprises: dividing all the air duct sections constituting the air duct system into a plurality of groups, wherein one group corresponds to one category, and for all the air duct sections in the same group, the numerical deviation between each two air duct sections satisfies that the corresponding first characteristic construction indexes are less than the first deviation threshold, and the numerical deviation between the corresponding second characteristic construction indexes are less than the second deviation threshold;

[0062] Step S6: sorting out the distribution of air duct sections that are sampled and planned to be tested for air leakage after the air duct system is installed in the target area, evaluating the rationality of the sampling results of the current air leakage test, and deciding whether to adjust the sampling objects based on the evaluation results;

[0063] Wherein, step S6 comprises:

[0064] Step S6-1: Obtain the total number of groups G obtained by dividing all the air duct segments constituting the air duct system, obtain the total number Q of air duct segments sampled and extracted from the air duct system by the inspectors and planned to carry out air leakage test, and identify the group to which each air duct segment sampled and extracted and planned to carry out air leakage test belongs;

[0065] Step S6-2: accumulating the total number of groups K involved in the Q air duct sections that are sampled and planned to be tested for air leakage, and setting each group involved in the Q air duct sections as a target group;

[0066] Step S6-3: In the Q air duct segments, the total number C of air duct segments belonging to each target group is accumulated respectively, the minimum value Cmin and the maximum value Cmax of the total number C of air duct segments are captured, and the characteristic difference R=1 / (Cmax-Cmin), wherein, when Cmax-Cmin=0, R=1; the sampling index α=(K / G)×R is evaluated and calculated for the sampling result of the current air leakage test;

[0067] Step S6-4: If the sampling index corresponding to the sampling result of the current air leakage test is less than the index threshold, the test personnel are informed to re-sample, that is, the air duct section sampled and planned to be tested for air leakage is adjusted;

[0068] In order to better implement the above method, a duct installation positioning management system is also proposed, which includes a three-dimensional space model construction management module, an installation operation area extraction module, a duct installation construction information management module, a characteristic construction index evaluation management module, a duct system division management module, and a duct installation evaluation management module;

[0069] The three-dimensional space model building management module is used to obtain the pipeline layout diagram designed by the engineer according to the space layout diagram of the target area before installing the air duct system in the target area, and build a three-dimensional space model of the target area according to the space layout diagram;

[0070] The installation operation area extraction module is used to locate the installation operation area corresponding to the mark in the three-dimensional space model for each air duct section connected through each pipeline connection point in the pipeline layout control diagram;

[0071] The duct installation construction information management module is used to capture the entire process of construction personnel installing the duct system in the target area according to the pipeline layout diagram, and obtain the installation video stream of the corresponding duct system; intercept the corresponding installation video sequence of each duct section, and sort out the corresponding construction sequence;

[0072] Among them, the duct installation construction information management module includes a video acquisition management unit and a video interception management unit;

[0073] The video acquisition management unit is used to capture the entire process of the construction personnel installing the air duct system in the target area according to the pipeline layout control diagram, and obtain the installation video stream of the corresponding air duct system;

[0074] The video capture management unit is used to capture the corresponding installation video sequence for each air duct section and sort out the corresponding construction sequence;

[0075] The characteristic construction index evaluation management module is used to identify and extract the characteristic construction parameters generated during the installation and construction of each air duct segment from the installation video sequence corresponding to each air duct segment, and evaluate and calculate the characteristic construction index of each air duct segment;

[0076] The air duct system division management module is used to carry out cluster analysis on all the air duct segments constituting the air duct system based on the corresponding characteristic construction index, and divide all the air duct segments constituting the air duct system into several groups according to the actual installation and construction conditions;

[0077] The air duct installation assessment management module is used to sort out the distribution of air duct sections that are sampled and planned to be tested for air leakage after the air duct system is installed in the target area, conduct a rationality assessment on the sampling results of the current air leakage test, and decide whether to adjust the sampling objects based on the assessment results;

[0078] Among them, the air duct installation assessment management module includes a sampling distribution combing unit and a sampling rationality assessment unit;

[0079] The sampling distribution combing unit is used to comb the distribution of the air duct sections that are sampled and planned to be tested for air leakage after the air duct system is installed in the target area;

[0080] The sampling rationality assessment unit is used to conduct a rationality assessment on the sampling results of the current air leakage test and decide whether to adjust the sampling object based on the assessment results.

[0081] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for duct installation positioning management based on data analysis, characterized in that: The method comprises: Step S1: obtaining a pipeline layout diagram designed by an engineer according to a spatial layout diagram of the target area before installing an air duct system in the target area, and constructing a three-dimensional spatial model of the target area according to the spatial layout diagram; Step S2: for each air duct segment connected through each pipeline connection point in the pipeline layout diagram, locate the installation operation area corresponding to the mark in the three-dimensional space model; Step S3: Capture the entire process of the construction personnel installing the air duct system in the target area according to the pipeline layout diagram to obtain the installation video stream of the corresponding air duct system; intercept the corresponding installation video sequence of each air duct section, and sort out the corresponding construction position sequence; Step S4: identifying and extracting characteristic construction parameters generated during the installation and construction of each air duct segment from the installation video sequence corresponding to each air duct segment, and evaluating and calculating the characteristic construction index of each air duct segment; Step S5: performing cluster analysis on all the air duct segments constituting the air duct system based on the corresponding characteristic construction indexes, and dividing all the air duct segments constituting the air duct system into several groups according to different actual installation and construction conditions; Step S6: sorting out the distribution of air duct sections that are sampled and planned to be tested for air leakage after the air duct system is installed in the target area, evaluating the rationality of the sampling results of the current air leakage test, and deciding whether to adjust the sampling objects based on the evaluation results; The step S4 comprises: Step S4-1: Obtain the ranking value i of the installation video sequence corresponding to each air duct segment in all installation video sequences; when i>1, extract the construction transition time Tf=t i 1 -t i-1 2 , where t i 1 is the first timestamp in the time period corresponding to the i-th installed video sequence, t i-1 2 is the second timestamp in the time period corresponding to the i-1th installation video sequence. When i=1, the construction transition time Tf=t is extracted for the corresponding air duct segment. i 1 -t e , where t e The timestamp for capturing the entry of construction workers into the installation video stream of the duct system for the first time; Step S4-2: accumulating the total number of construction personnel n and the total number of construction equipment m that appear in the installation operation area of ​​each air duct segment during the time period of the installation video sequence corresponding to each air duct segment; obtaining the total number of construction personnel M and the total number of construction equipment G that enter the site for construction during the entire process of installing the air duct system in the target area; Step S4-3: Obtain the length F of each air duct segment, and set the length F as the first characteristic construction index β of the corresponding air duct segment 1 =F; Calculate the second characteristic construction index β for each duct segment 2 =(n / M+m / G)×(Tf+Td), where Td is the total duration covered by the time period of the installation video sequence corresponding to each air duct segment; The step S6 comprises: Step S6-1: Obtain the total number of groups G obtained by dividing all the air duct segments constituting the air duct system, obtain the total number Q of air duct segments sampled and extracted from the air duct system by the inspectors and planned to carry out air leakage test, and identify the group to which each air duct segment sampled and extracted and planned to carry out air leakage test belongs; Step S6-2: accumulating the total number of groups K involved in the Q air duct sections that are sampled and planned to be tested for air leakage, and setting each group involved in the Q air duct sections as a target group; Step S6-3: In the Q air duct segments, the total number C of air duct segments belonging to each target group is accumulated respectively, the minimum value Cmin and the maximum value Cmax of the total number C of air duct segments are captured, and the characteristic difference R=1 / (Cmax-Cmin), wherein, when Cmax-Cmin=0, R=1; the sampling index α=(K / G)×R is evaluated and calculated for the sampling result of the current air leakage test; Step S6-4: If the sampling index corresponding to the sampling result of the current air leakage test is less than the index threshold, the test personnel are informed to re-sample, that is, the air duct section sampled and planned to be tested for air leakage is adjusted.

2. The method for air duct installation positioning management based on data analysis according to claim 1, characterized in that: The step S3 comprises: Step S3-1: for each of the air duct sections, extract from the installation video stream the installation video sequence from the initial capture of a construction worker appearing in the corresponding installation operation area to carry out installation construction to the completion of the installation construction of each of the air duct sections by the construction worker; Step S3-2: Extract the time period T=[t 1 ,t 2 ], where t 1 is the first timestamp, which is the timestamp corresponding to when a construction worker is first captured in the installation video stream to perform installation work in the corresponding installation operation area, t 2 is a second timestamp, which is a timestamp corresponding to when the installation construction of each air duct section is completed as captured in the installation video stream; Step S3-3: traverse the first timestamps and second timestamps in the time period corresponding to all video streams, and sort the installation video sequences corresponding to all air duct segments according to the time sequence of their corresponding distribution in the installation video stream of the air duct system.

3. The method for air duct installation positioning management based on data analysis according to claim 2 is characterized in that: The step S5 comprises: dividing all the air duct sections constituting the air duct system into a plurality of groups, wherein one group corresponds to one category, and for all the air duct sections in the same group, the numerical deviation between each two air duct sections satisfies that the corresponding first characteristic construction indexes are less than the first deviation threshold, and the numerical deviation between the corresponding second characteristic construction indexes are less than the second deviation threshold.

4. A duct installation positioning management system, used to execute a duct installation positioning management method based on data analysis as claimed in any one of claims 1 to 3, characterized in that: The system includes a three-dimensional space model construction management module, an installation operation area extraction module, a duct installation construction information management module, a characteristic construction index evaluation management module, a duct system division management module, and a duct installation evaluation management module; The three-dimensional space model building management module is used to obtain the pipeline layout diagram designed by the engineer according to the space layout diagram of the target area before installing the air duct system in the target area, and build the three-dimensional space model of the target area according to the space layout diagram; The installation operation area extraction module is used to locate the installation operation area corresponding to the positioning mark in the three-dimensional space model for each air duct section connected through each pipeline connection point in the pipeline layout control diagram; The air duct installation construction information management module is used to capture the entire process of the construction personnel installing the air duct system in the target area according to the pipeline layout diagram, and obtain the installation video stream of the corresponding air duct system; intercept the corresponding installation video sequence of each air duct section, and sort out the corresponding construction position sequence; The characteristic construction index evaluation management module is used to identify and extract characteristic construction parameters generated during the installation and construction of each air duct segment from the installation video sequence corresponding to each air duct segment, and evaluate and calculate the characteristic construction index of each air duct segment; The air duct system division management module is used to carry out cluster analysis on all the air duct segments constituting the air duct system based on the corresponding characteristic construction indexes, and divide all the air duct segments constituting the air duct system into several groups according to different actual installation and construction conditions; The air duct installation assessment management module is used to sort out the distribution of air duct sections that are sampled and planned to be tested for air leakage after the air duct system is installed in the target area, conduct a rationality assessment on the sampling results of the current air leakage test, and decide whether to adjust the sampling objects based on the assessment results.

5. The air duct installation positioning management system according to claim 4, characterized in that: The air duct installation construction information management module includes a video acquisition management unit and a video interception management unit; The video acquisition management unit is used to capture the entire process of the construction personnel installing the air duct system in the target area according to the pipeline layout diagram, and obtain the installation video stream of the corresponding air duct system; The video capture management unit is used to capture the corresponding installation video sequence for each air duct section and sort out the corresponding construction position sequence.

6. The air duct installation positioning management system according to claim 4, characterized in that: The air duct installation assessment management module includes a sampling distribution combing unit and a sampling rationality assessment unit; The sampling distribution combing unit is used to comb the distribution of the air duct sections that are sampled and extracted and planned to be tested for air leakage after the air duct system is installed in the target area; The sampling rationality evaluation unit is used to evaluate the rationality of the sampling results of the current air leakage test and decide whether to adjust the sampling object based on the evaluation results.

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