A method and system applied to full-tunnel construction personnel positioning

Abstract

The application discloses a method and system applied to full-tunnel construction personnel positioning, which deploys UWB base stations and communication equipment in a tunnel according to base station signal coverage capacity and tunnel environment, forms a data transmission network among the multiple UWB base stations through the communication equipment, and constructs a man-machine positioning system with stable signal transmission and high positioning precision in the tunnel by using the high-precision positioning advantage of the UWB base stations, so that the real-time positions of the construction personnel and the construction operation trolley in the tunnel can be accurately positioned. Furthermore, the accurate positioning of the working face can be realized by combining the UWB positioning technology and the laser ranging technology, and the tunnel construction progress can be accurately evaluated. In addition, an evaluation system for evaluating the operation efficiency of the construction personnel and the construction operation trolley based on man-machine positioning and operation range is provided, so that the operation efficiency of the construction personnel and the construction operation trolley can be accurately and automatically evaluated at each stage of the tunnel construction process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel construction, in particular, to a method and system for positioning of tunnel construction personnel. BACKGROUND

[0002] In recent years, tunnel construction technology and construction equipment in China have been greatly developed and improved, and higher requirements have been put forward for construction safety, construction personnel and equipment management. At present, the tunnel construction area is generally only equipped with an access control system, which can only realize attendance statistics function and does not have the function of safety production and operation evaluation management. The tunnel construction environment is poor and the types of work are complex and diverse, and an effective personnel positioning and operation evaluation management system is urgently needed to control the safety of tunnel construction. At present, the existing technology generally uses RFID tag positioning technology to position personnel, and the construction personnel wear work cards with positioning function, and the management personnel track and position the construction personnel, for example, patent CN209992671U discloses a tunnel personnel RFID positioning management system, which positions the tunnel construction personnel through RFID technology, but is limited by the positioning accuracy of RFID, and is only suitable for regional positioning of personnel. For areas with high construction risk such as the working face, it is impossible to accurately position the personnel position when danger occurs. In addition, there is currently no method for evaluating the operation performance of construction personnel and construction equipment. SUMMARY

[0003] The present application provides a method and system for positioning of tunnel construction personnel, to solve the technical problems of poor positioning accuracy and inability to evaluate the operation performance of construction personnel and construction equipment in the prior art.

[0004] According to one aspect of the present application, a method for positioning of tunnel construction personnel is provided, comprising the following contents:

[0005] Deploying UWB base stations and communication equipment inside the tunnel according to the base station signal coverage ability and the tunnel environment, and forming a data transmission network between the multiple UWB base stations through the communication equipment;

[0006] Deploying positioning tags on the construction operation trolley and the work card of the construction personnel, deploying a laser range finder and a gateway on the waterproof board trolley, and connecting the gateway to the data transmission network;

[0007] Entering the configuration information of each positioning tag, and configuring different operation ranges for the corresponding construction personnel and construction operation trolley for different types of work;

[0008] Obtain ranging data of multiple UWB base stations, calculate the mileage coordinates of each positioning tag, and calculate the mileage coordinates of the tunnel face according to the mileage coordinates of the waterproof board trolley and the distance between the waterproof board trolley and the tunnel face measured by the laser range finder;

[0009] Evaluate the work efficiency of the construction personnel and the construction work trolley according to the mileage coordinates of each positioning tag and the corresponding work range.

[0010] Further, assuming that the signal coverage range of the UWB base station is N meters on the left and right, the deployment interval between the two adjacent UWB base stations is 2N*α, and the value range of α is 0-1, and the more the shielding objects in the tunnel environment, the smaller the value of α.

[0011] Further, the multiple UWB base stations are installed at the same height on the wall and are located on the same horizontal line.

[0012] Further, the process of evaluating the work efficiency of the construction personnel and the construction work trolley according to the mileage coordinates of each positioning tag and the corresponding work range is specifically:

[0013] Compare the mileage coordinates of each positioning tag with the entrance mileage, if the mileage coordinates are greater than the entrance mileage, it is considered that the tag enters the hole, and if the mileage coordinates are less than or equal to the entrance mileage, it is considered that the tag exits the hole;

[0014] Record the tag entry time and the tag exit time, and consider the adjacent tag entry time and tag exit time as a work time interval;

[0015] Obtain the mileage coordinates of the positioning tag in each work time interval, and compare them with the corresponding work range to obtain the effective work duration, movement duration and static duration of the construction personnel and the construction work trolley;

[0016] Compare the effective work duration, movement duration and static duration in each work time interval with the average work duration index corresponding to the tag, and automatically evaluate the work efficiency of the construction personnel and the construction work trolley in each work time interval according to the comparison result.

[0017] Further, when the mileage coordinates of the positioning tag are located within the work range, it is determined that the construction personnel or the construction work trolley is in an effective working state, and the effective working duration is recorded; when the mileage coordinates of the positioning tag are located outside the work range, and the mileage coordinates at this moment are inconsistent with the mileage coordinates at the previous moment, it is determined that the construction personnel or the construction work trolley is in a moving state, and the movement duration is recorded; when the mileage coordinates of the positioning tag are located outside the work range, and the mileage coordinates at this moment are consistent with the mileage coordinates at the previous moment, it is determined that the construction personnel or the construction work trolley is in a static state, and the static duration is recorded.

[0018] Further, for different types of work, different restricted area fence ranges are configured for corresponding construction personnel and construction operation trolleys, and after obtaining the mileage coordinates of each positioning tag, the following is further included:

[0019] According to the mileage coordinates of each positioning tag and the corresponding restricted area fence range, it is judged whether a violation occurs, and if a violation occurs, a violation record is generated.

[0020] Further, the setting reference of the operation range and the restricted area fence range is set as the distance from the tunnel face mileage.

[0021] Further, the configuration information of the positioning tag includes a unique id, a tag type, a name, a type of work, a restricted area fence range, and an operation range.

[0022] In addition, the present application also provides a system applied to full-tunnel construction personnel positioning, comprising:

[0023] A base station deployment module is used to deploy UWB base stations and communication equipment inside the tunnel according to the base station signal coverage capability and the tunnel environment, and the multiple UWB base stations form a data transmission network through the communication equipment;

[0024] A tag deployment module is used to deploy positioning tags on construction operation trolleys and work cards of construction personnel, deploy a laser range finder and a gateway on a waterproof board trolley, and connect the gateway to the data transmission network;

[0025] A tag configuration module is used to input the configuration information of each positioning tag, and for different types of work, different operation ranges are configured for corresponding construction personnel and construction operation trolleys;

[0026] A position solving module is used to obtain ranging data of multiple UWB base stations, solve the mileage coordinates of each positioning tag, and calculate the mileage coordinates of the tunnel face according to the mileage coordinates of the waterproof board trolley and the distance from the waterproof board trolley to the tunnel face measured by the laser range finder;

[0027] An operation evaluation module is used to evaluate the operation efficiency of construction personnel and construction operation trolleys according to the mileage coordinates of each positioning tag and the corresponding operation range.

[0028] Further, the tag configuration module further configures different restricted area fence ranges for corresponding construction personnel and construction operation trolleys of different types of work, and the system further comprises:

[0029] A violation record module is used to judge whether a violation occurs according to the mileage coordinates of each positioning tag and the corresponding restricted area fence range, and if a violation occurs, a violation record is generated.

[0030] The present application has the following effects:

[0031] The application of a method for full-tunnel construction personnel positioning according to the base station signal coverage capability and tunnel environment deploys UWB base stations and communication equipment in the tunnel, forms a data transmission network through the communication equipment between multiple UWB base stations, and thus utilizes the high-precision positioning advantage of the UWB base station to construct a man-machine positioning system with stable signal transmission and high positioning accuracy in the tunnel, which can accurately locate the real-time positions of the construction personnel and construction operation trolley in the tunnel. Moreover, by deploying a laser range finder on the waterproof board trolley, the UWB positioning technology and laser ranging technology can be combined to realize accurate positioning of the working face, which is convenient for accurate evaluation of the tunnel construction progress. More importantly, the application proposes an evaluation system for evaluating the operation efficiency of the construction personnel and construction operation trolley based on man-machine positioning and operation range, which can accurately and automatically evaluate the operation efficiency of the construction personnel and construction operation trolley at each stage of the tunnel construction process.

[0032] In addition, the application of a system for full-tunnel construction personnel positioning also has the above advantages.

[0033] In addition to the purposes, features and advantages described above, the application has other purposes, features and advantages. The application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application, illustrate the preferred embodiments of the application and aid in explaining the application. In the drawings:

[0035] Figure 1 is a flowchart of a method for full-tunnel construction personnel positioning according to a preferred embodiment of the application.

[0036] Figure 2 is a sub-flowchart of step S5 in Figure 1

[0037] Figure 3 is another flowchart of a method for full-tunnel construction personnel positioning according to a preferred embodiment of the application.

[0038] Figure 4 is a module structure diagram of a system for full-tunnel construction personnel positioning according to another embodiment of the application. DETAILED DESCRIPTION

[0039] The embodiments of the application will be described in detail below with reference to the accompanying drawings, but the application can be implemented in various different ways as defined and covered below.

[0040] It can be understood that, as​Figure 1 As shown, the preferred embodiment of the present application provides a method for full-tunnel construction personnel positioning, comprising the following contents:

[0041] Step S1: Deploy UWB base stations and communication equipment in the tunnel according to the base station signal coverage capability and the tunnel environment, and form a data transmission network between the multiple UWB base stations through the communication equipment;

[0042] Step S2: Deploy positioning tags on the construction operation trolley and the construction personnel's work card, deploy a laser range finder and a gateway on the waterproof board trolley, and connect the gateway to the data transmission network;

[0043] Step S3: Enter the configuration information of each positioning tag, and configure different work ranges for the corresponding construction personnel and construction operation trolleys for different types of work;

[0044] Step S4: Obtain the ranging data of the multiple UWB base stations, solve the mileage coordinates of each positioning tag, and calculate the mileage coordinates of the working face according to the mileage coordinates of the waterproof board trolley and the distance from the waterproof board trolley to the working face measured by the laser range finder;

[0045] Step S5: Evaluate the work efficiency of the construction personnel and the construction operation trolley according to the mileage coordinates of each positioning tag and its corresponding work range.

[0046] It can be understood that the method for full-tunnel construction personnel positioning according to the embodiment deploys UWB base stations and communication equipment in the tunnel according to the base station signal coverage capability and the tunnel environment, forms a data transmission network between the multiple UWB base stations through the communication equipment, and thus utilizes the high-precision positioning advantage of the UWB base stations to construct a man-machine positioning system with stable signal transmission and high positioning accuracy in the tunnel, which can accurately position the real-time positions of the construction personnel and the construction operation trolley in the tunnel. Moreover, by deploying a laser range finder on the waterproof board trolley, the precise positioning of the working face can be realized by combining the UWB positioning technology and the laser ranging technology, which facilitates accurate evaluation of the tunnel construction progress. More importantly, the present application proposes an evaluation system for evaluating the work efficiency of the construction personnel and the construction operation trolley based on man-machine positioning and work range, which can accurately and automatically evaluate the work efficiency of the construction personnel and the construction operation trolley at each stage of the tunnel construction process.

[0047] It is understood that in step S1, due to the different signal coverage capabilities of UWB base stations produced by various manufacturers and the differences in the actual construction environment of each tunnel, the deployment of base stations needs to be based on the actual situation. Assuming the signal coverage range of a UWB base station is N meters to the left and right, the deployment interval between two adjacent UWB base stations is 2N*α, where α ranges from 0 to 1, and the more obstructions in the tunnel environment, the smaller the value of α. Optionally, the value of α is generally less than 0.9, which is beneficial for further improving positioning accuracy. In addition, separate base stations need to be set up at tunnel bends and locations with significant obstructions. Optionally, multiple UWB base stations can be installed at the same height on the tunnel wall and on the same horizontal line. Furthermore, a communication device, such as a wireless AP device, is deployed at each UWB base station. Multiple UWB base stations form a data transmission network through the wireless AP device, making signal transmission more stable.

[0048] It is understood that in step S2, personnel positioning tags are deployed on the work badges of each construction worker, and vehicle-mounted positioning tags are deployed on each construction trolley. The vehicle-mounted positioning tags are uniformly installed on the top of the trolley to reduce signal obstruction. Additionally, a laser rangefinder and gateway need to be deployed on the waterproofing trolley. The laser rangefinder must be installed directly in front of the waterproofing trolley, facing the working face. The measurement data from the laser rangefinder is connected to the data transmission network constructed by the wireless AP device through the gateway.

[0049] It is understood that in step S3, the configuration information of each positioning tag includes a unique ID, tag type, name, job type, restricted area fence range, and work range. For different jobs, the corresponding construction personnel and construction trolleys are configured with different work ranges, that is, the corresponding personnel positioning tags and vehicle positioning tags are configured with different work ranges.

[0050] It is understood that in step S4, ranging data from multiple UWB base stations are acquired, and the mileage coordinates of each positioning tag are calculated using the TOF algorithm. The specific calculation process is existing technology and will not be elaborated here. Furthermore, based on the calculated mileage coordinates X of the waterproofing trolley and the distance d from the waterproofing trolley to the tunnel face measured by the laser rangefinder, the mileage coordinates of the tunnel face can be calculated as X+d. This enables precise positioning of the tunnel face, facilitating accurate assessment of tunnel construction progress.

[0051] Understandable, such as Figure 2 As shown, in step S5, the process of evaluating the operational efficiency of construction personnel and construction trolleys based on the mileage coordinates of each positioning tag and its corresponding working range specifically involves:

[0052] Step S51: Compare the mileage coordinates of each positioning tag with the mileage at the tunnel entrance. If the mileage coordinates are greater than the tunnel entrance mileage, the tag is considered to have entered the tunnel. If the mileage coordinates are less than or equal to the tunnel entrance mileage, the tag is considered to have exited the tunnel.

[0053] Step S52: Record the tag entry time and tag exit time, and consider adjacent tag entry and exit times as a working time interval;

[0054] Step S53: Obtain the mileage coordinates of the positioning tag within each operation time interval, compare them with the corresponding operation range, and obtain the effective operation time, movement time and stationary time of the construction personnel and the construction operation trolley.

[0055] Step S54: Compare the effective working time, moving time, and stationary time within each working time interval with the average working time index corresponding to the label, and automatically evaluate the working efficiency of construction personnel and construction trolleys within each working time interval based on the comparison results.

[0056] Specifically, the mileage coordinates of each positioning tag are compared with the mileage at the tunnel entrance. If the mileage coordinates are greater than the tunnel entrance mileage, the tag is considered to have entered the tunnel, and an entry record is automatically generated in the database, along with the entry time. If the mileage coordinates are less than or equal to the tunnel entrance mileage, the tag is considered to have exited the tunnel, and the exit time is added to the most recent entry record in the database. Then, the entry and exit times of adjacent tags are considered as a work time interval, that is, the time interval between the entry and exit times corresponding to an entry record is considered as a work time interval, which can also be regarded as a cycle. Then, the historical data within each work time interval, i.e., the mileage coordinates of each positioning tag, are filtered out. The mileage coordinates of the positioning tags within each time interval are compared with the work area to obtain the effective working time, movement time, and stationary time of the construction personnel and construction trolley. For example, when the mileage coordinates of the positioning tag are within the working area, the construction personnel or construction trolley are determined to be in an effective working state, and the effective working time is recorded. When the mileage coordinates of the positioning tag are outside the working area, and the mileage coordinates at that moment are inconsistent with the mileage coordinates at the previous moment, the construction personnel or construction trolley are determined to be in a moving state, and the moving time is recorded. When the mileage coordinates of the positioning tag are outside the working area, and the mileage coordinates at that moment are consistent with the mileage coordinates at the previous moment, the construction personnel or construction trolley are determined to be in a stationary state, and the stationary time is recorded. Finally, based on the comparison between the effective working time, moving time, and stationary time within each working time period and the average working time index of the trolley type or personnel type, the working efficiency of the construction personnel and construction trolley within each working time interval is automatically evaluated. For example, the effective working time and movement time can be combined to form the actual working time. If the actual working time is greater than or equal to the average working time index, the corresponding construction personnel or construction trolley is considered to have high working efficiency; if the actual working time is less than the average working time index, the corresponding construction personnel or construction trolley is considered to have low working efficiency. Of course, other methods for evaluating working efficiency levels can also be adopted in other embodiments of the present invention.

[0057] Optionally, different restricted area fencing ranges are configured for different types of work, corresponding construction personnel, and construction work vehicles, such as... Figure 3 As shown, after obtaining the mileage coordinates of each positioning tag, the method also includes the following:

[0058] Step S45: Determine whether a violation has occurred based on the mileage coordinates of each positioning tag and its corresponding restricted area fence range. If a violation has occurred, generate a violation record.

[0059] It is understandable that when the mileage coordinates of the positioning tag are within the restricted area fence, it is determined that the construction personnel or construction trolley corresponding to the positioning tag have violated regulations, thus generating a violation record and issuing a violation alarm.

[0060] Furthermore, considering that the tunnel face continuously advances during construction, and the working areas and restricted area fences for construction personnel and trolleys also change synchronously, the benchmark for setting the working areas and restricted area fences is set as their distance from the tunnel face mileage to ensure accurate updates. For example, if the tunnel face mileage is X+d, the distance between the restricted area fence and the tunnel face is D1s~D1e, and the distance between the working area and the tunnel face is D2s~D2e, then the mileage range of the restricted area fence is (X+d-D1s, X+d-D1e), and the mileage range of the working area is (X+d-D2s, X+d-D2e).

[0061] In addition, such as Figure 4 As shown, another embodiment of the present invention also provides a system for personnel positioning in tunnel construction, preferably employing the method described above. The system includes:

[0062] The base station deployment module is used to deploy UWB base stations and communication equipment in the tunnel according to the base station signal coverage capability and tunnel environment. Multiple UWB base stations form a data transmission network through the communication equipment.

[0063] The tag deployment module is used to deploy positioning tags on the construction work trolley and on the work badges of construction workers, deploy laser rangefinders and gateways on the waterproof board trolley, and connect the gateways to the data transmission network;

[0064] The tag configuration module is used to input the configuration information of each positioning tag. For different types of work, different working ranges are configured for the corresponding construction personnel and construction trolleys.

[0065] The location calculation module is used to acquire ranging data from multiple UWB base stations, calculate the mileage coordinates of each positioning tag, and calculate the mileage coordinates of the working face based on the mileage coordinates of the waterproof board trolley and the distance from the waterproof board trolley to the working face measured by the laser rangefinder.

[0066] The work evaluation module is used to evaluate the work efficiency of construction personnel and construction trolleys based on the mileage coordinates of each positioning tag and its corresponding work range.

[0067] It is understood that this embodiment of a system for locating personnel during tunnel construction deploys UWB base stations and communication equipment within the tunnel, based on the base station signal coverage and tunnel environment. Multiple UWB base stations form a data transmission network through the communication equipment, thereby leveraging the high-precision positioning advantages of UWB base stations to construct a stable signal transmission and high-accuracy human-machine positioning system within the tunnel. This system can accurately locate the real-time positions of construction personnel and construction trolleys within the tunnel. Furthermore, by deploying a laser rangefinder on the waterproofing trolley, combined with UWB positioning technology and laser ranging technology, precise positioning of the tunnel face can be achieved, facilitating accurate assessment of tunnel construction progress. More importantly, this invention proposes an evaluation system based on human-machine positioning and operating range to assess the operational efficiency of construction personnel and construction trolleys, enabling accurate and automatic evaluation of their operational efficiency at various stages of tunnel construction.

[0068] Optionally, the label configuration module also configures different restricted area fencing ranges for construction workers and construction trolleys corresponding to different types of work. The system also includes:

[0069] The violation recording module is used to determine whether a violation has occurred based on the mileage coordinates of each location tag and its corresponding restricted area fence range. If a violation occurs, a violation record is generated.

[0070] It is understood that each module of this system embodiment corresponds to each step of the above method embodiment, so the specific working process of each module will not be described in detail here, but can be referred to the above method embodiment.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0072] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code. The solutions in the embodiments of this application can be implemented in various computer languages, such as the object-oriented programming language Java and the interpreted scripting language JavaScript.

[0073] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0074] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0075] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0076] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0077] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A method for personnel positioning in tunnel construction, characterized in that, Includes the following: UWB base stations and communication equipment are deployed in the tunnel according to the base station signal coverage and tunnel environment. Multiple UWB base stations form a data transmission network through the communication equipment. Positioning tags are deployed on the construction work trolley and on the work badges of the construction workers. Laser rangefinders and gateways are deployed on the waterproof board trolley, and the gateways are connected to the data transmission network. Enter the configuration information for each positioning tag, and configure different working ranges for the corresponding construction personnel and construction trolleys for different types of work; The ranging data from multiple UWB base stations is acquired, the mileage coordinates of each positioning tag are calculated, and the mileage coordinates of the working face are calculated based on the mileage coordinates of the waterproof board trolley and the distance from the waterproof board trolley to the working face measured by the laser rangefinder. The operational efficiency of construction personnel and construction trolleys is evaluated based on the mileage coordinates of each positioning tag and its corresponding operating range.

2. The method for personnel positioning in tunnel construction as described in claim 1, characterized in that, Assuming the signal coverage of a UWB base station is N meters on each side, the deployment interval between two adjacent UWB base stations is 2N*α, where α ranges from 0 to 1. The more obstructions in the tunnel environment, the smaller the value of α.

3. The method for personnel positioning in tunnel construction as described in claim 2, characterized in that, Multiple UWB base stations are installed at the same height on the cave wall and are located on the same horizontal line.

4. The method for personnel positioning in tunnel construction as described in claim 1, characterized in that, The process of evaluating the operational efficiency of construction personnel and construction trolleys based on the mileage coordinates of each positioning tag and its corresponding working range is as follows: The mileage coordinates of each positioning tag are compared with the mileage at the tunnel entrance. If the mileage coordinates are greater than the mileage at the tunnel entrance, the tag is considered to have entered the tunnel. If the mileage coordinates are less than or equal to the mileage at the tunnel entrance, the tag is considered to have exited the tunnel. Record the time when the tag enters the hole and the time when the tag exits the hole, and consider adjacent tag entry and exit times as a working time interval; Obtain the mileage coordinates of the positioning tags within each work time interval, compare them with the corresponding work range, and obtain the effective work time, movement time, and stationary time of the construction personnel and construction trolley. The effective working time, moving time, and stationary time within each working time interval are compared with the average working time index corresponding to the label. Based on the comparison results, the working efficiency of construction personnel and construction trolleys within each working time interval is automatically evaluated.

5. The method for personnel positioning in tunnel construction as described in claim 4, characterized in that, When the mileage coordinates of the positioning tag are within the working range, the construction personnel or construction trolley are determined to be in an effective working state, and the effective working time is recorded. When the mileage coordinates of the positioning tag are outside the working range, and the mileage coordinates at this moment are inconsistent with the mileage coordinates at the previous moment, the construction personnel or construction trolley are determined to be in a moving state, and the moving time is recorded. When the mileage coordinates of the positioning tag are outside the working range, and the mileage coordinates at this moment are consistent with the mileage coordinates at the previous moment, the construction personnel or construction trolley are determined to be in a stationary state, and the stationary time is recorded.

6. The method for personnel positioning in tunnel construction as described in claim 1, characterized in that, For different types of work, different restricted area fencing is configured for the corresponding construction personnel and construction trolleys. After obtaining the mileage coordinates of each positioning tag, the following content is also included: The system determines whether a violation has occurred based on the mileage coordinates of each location tag and its corresponding restricted area fence. If a violation occurs, a violation record is generated.

7. The method for personnel positioning in tunnel construction as described in claim 6, characterized in that, The benchmark for setting the working area and the restricted area fence is set at the distance from the working face mileage.

8. The method for personnel positioning in tunnel construction as described in claim 1, characterized in that, The configuration information for location tags includes a unique ID, tag type, name, job type, restricted area fence range, and work area.

9. A system for personnel positioning in tunnel construction, characterized in that, include: The base station deployment module is used to deploy UWB base stations and communication equipment in the tunnel according to the base station signal coverage capability and tunnel environment. Multiple UWB base stations form a data transmission network through the communication equipment. The tag deployment module is used to deploy positioning tags on the construction work trolley and on the work badges of construction workers, deploy laser rangefinders and gateways on the waterproof board trolley, and connect the gateways to the data transmission network; The tag configuration module is used to input the configuration information of each positioning tag. For different types of work, different working ranges are configured for the corresponding construction personnel and construction trolleys. The location calculation module is used to acquire ranging data from multiple UWB base stations, calculate the mileage coordinates of each positioning tag, and calculate the mileage coordinates of the working face based on the mileage coordinates of the waterproof board trolley and the distance from the waterproof board trolley to the working face measured by the laser rangefinder. The work evaluation module is used to evaluate the work efficiency of construction personnel and construction trolleys based on the mileage coordinates of each positioning tag and its corresponding work range.

10. A system for personnel positioning in tunnel construction as described in claim 9, characterized in that, The label configuration module also configures different restricted area fencing ranges for construction workers and construction trolleys corresponding to different types of work. The system also includes: The violation recording module is used to determine whether a violation has occurred based on the mileage coordinates of each location tag and its corresponding restricted area fence range. If a violation occurs, a violation record is generated.

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