Large machinery construction damage early warning system and emergency disposal method

Abstract

The invention provides a large machinery construction damage early warning system and an emergency disposal method, and relates to the technical field of urban public safety. The system comprises a distributed optical fiber vibration sensing system, a geographic information system, a Beidou positioning navigation terminal and a large-scale construction machinery management platform. The distributed optical fiber vibration sensing system can collect construction vibration signals around an underground structure and output time and space information, the geographic information system marks the longitude and latitude, the route and the burial depth of the underground structure such as a pipeline, and the Beidou positioning terminal reports the position and the motion state of construction machinery in real time. The management platform can achieve setting of a permitted area and a forbidden area, real-time judgment of the horizontal distance and the vertical distance between the construction machinery and the underground structure, and in-vehicle warning, management end persuasion and remote shutdown processing under the triggering condition. According to the invention, the management and control of ordered and disordered construction can be realized, and the intrinsic safety level of the municipal underground pipe network and other structures can be improved.

Description

Technical Field

[0001] This invention relates to the field of urban public safety technology, and in particular to an early warning system and emergency response method for damage caused by large-scale mechanical construction. Background Technology

[0002] With the continuous advancement of urbanization and the upgrading of municipal infrastructure, underground pipe networks are diverse in type, densely distributed, and complex in route. Construction damage has become a significant source of pipe network accidents, with a high proportion of damage caused by various construction activities. Disorderly construction without approval or not in accordance with approval requirements accounts for the majority. Damage caused by unclear pipeline routes after approval accounts for a smaller proportion, but it still has a significant impact on the safety of public services such as water supply, gas, heating, communications, and electricity, resulting in high social and governance costs.

[0003] Current management methods primarily rely on video surveillance and positioning terminals. While video surveillance can record the activities of large construction machinery at fixed locations or along roadsides, manual monitoring is burdensome, coverage is limited, and it lacks the ability to detect underground structures such as buried pipelines, failing to identify potential risks. Positioning terminals, such as GPS and BeiDou navigation terminals, can provide location and trajectory information for large construction machinery, but there is a lack of mandatory installation requirements, resulting in unstable terminal installation and online rates. Even when installed, there is generally a lack of a unified management platform for centralized access, review, and coordinated handling of location and operational trajectories, making it difficult to connect with municipal management departments in a timely manner and achieve refined control over key areas. Furthermore, the objective existence of missing pipeline data, lost or outdated drawings means that ground monitoring cannot correspond to the actual spatial location of underground pipelines, hindering effective early warning and response during dangerous approach phases.

[0004] Based on the above situation, there is an urgent need to establish a joint control technology system that can simultaneously address both above-ground construction activities and the safety of underground structures. On the one hand, it is necessary to accurately grasp the spatial information and restricted areas of underground structures; on the other hand, it is necessary to continuously acquire and manage the location and operating status of large construction machinery. On this basis, it is necessary to achieve coordinated linkage between electronic fence constraints, distance threshold early warning, vehicle-side alarms, and management-side handling, and form a traceable closed-loop management system to reduce the probability of construction-related damage incidents from the source and improve the inherent safety level of municipal pipeline networks. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, the purpose of this invention is to provide a large-scale construction damage early warning system and emergency response method. By deploying distributed fiber optic vibration sensors on or inside underground structures, such as pipelines, and connecting them to a distributed fiber optic vibration signal demodulator, the system obtains the temporal and spatial information of construction vibration. Combined with the latitude, longitude, route, and burial depth of the underground structures in the geographic information system, as well as the Beidou positioning and navigation terminal installed on the large construction machinery, the system can accurately determine the threshold values ​​of electronic fence constraints and horizontal and vertical distances between the large construction machinery and the underground structures. Under triggered conditions, the system can issue alarms in the vehicle and persuade the management terminal to stop the machinery through two-way communication. If necessary, the remote shutdown control module can execute a forced shutdown, thus constructing a closed-loop management system from perception, early warning, response to record keeping and archiving.

[0006] To achieve the above objectives, the present invention provides the following solution: A large-scale mechanical construction damage early warning system includes: A distributed fiber optic vibration sensor and a distributed fiber optic vibration signal demodulator constitute a distributed fiber optic vibration sensing system, which is used to collect vibration signals generated by the movement or construction of large construction machinery around underground structures and output corresponding time and space information; if there are no distributed fiber optic vibration sensors installed underground in the target area, the distributed fiber optic sensors are laid in buried pipelines. Geographic Information System (GIS) is used to mark the latitude, longitude, or route, burial depth, and other information of underground structures such as pipelines, and to provide two-dimensional and three-dimensional management views. The Beidou positioning and navigation terminal installed on large construction machinery is used to report the location and movement status of large construction machinery in real time. A large construction machinery management platform is communicatively connected to the distributed fiber optic vibration signal demodulator and the Beidou positioning and navigation terminal. The platform includes: an electronic fence module, a distance calculation and threshold alarm module, a two-way communication module, and a remote shutdown control module. The electronic fence module is used to set permitted and prohibited construction areas based on construction application approval information. The distance calculation and threshold alarm module is used to register the navigation information of the large construction machinery with the location and depth of underground structures in the geographic information system, calculate the horizontal and vertical distances between the large construction machinery and the underground structures, and trigger reminders and warnings when any distance is less than a preset alarm threshold or when the large construction machinery enters a prohibited construction area. The two-way communication module is used to send alarm prompts to the vehicle and interact with management personnel via voice or text when an alarm is triggered. The remote shutdown control module is used to remotely force the large construction machinery to shut down when there are continuous violations or when the safety of underground structures is endangered, thereby achieving safety protection for underground structures.

[0007] Preferably, the distributed optical fiber vibration sensor is composed of surplus optical fibers from communication optical cables buried under urban roads by telecommunications operators. The distributed optical fiber vibration signal demodulator is communicatively connected to a large construction machinery management platform to send vibration data to the large construction machinery management platform and to display the operating trajectory and construction excavation location of the large construction machinery in conjunction with the geographic information system.

[0008] Preferably, the electronic fence module sets permitted and prohibited construction areas based on the approved construction application information, and triggers an alarm and sends a disposal command to large construction machinery that enters the prohibited construction area without approval.

[0009] Preferably, the distance calculation and threshold alarm module uses straight-line distance as the alarm criterion. When the straight-line distance between the large construction machinery and the underground structure is less than the alarm threshold, an alarm is triggered inside the vehicle. If the machinery continues to move under the alarm conditions, the remote shutdown control module will execute a forced shutdown.

[0010] Preferably, the distance calculation and threshold alarm module calculates the distance between large construction machinery and underground structures based on the underground structure routing and burial depth information in the geographic information system, and compares it with the alarm threshold.

[0011] Preferably, the two-way communication module is used to communicate with the project management unit to confirm whether the large construction machinery is permitted to operate, and to issue a voice broadcast inside the vehicle to persuade the vehicle to stop when an alarm is triggered.

[0012] Preferably, the Beidou positioning and navigation terminal is a vehicle positioning and navigation system that is uniformly and mandatorily installed by the competent authority to ensure the continuous reporting of the location and running trajectory of large construction machinery.

[0013] Preferably, the large construction machinery management platform registers the location and operating trajectory of the large construction machinery with the location of underground structures in the geographic information system, so as to synchronously display the alarm status and proximity relationship in the management view; when the large construction machinery enters the prohibited construction area set according to the approval information, the electronic fence module triggers an alarm, the two-way communication module sends a warning message, and the remote shutdown control module performs a forced shutdown if the warning is ineffective.

[0014] Preferably, the in-vehicle alarm includes a voice announcement via a vehicle loudspeaker to stop construction and prevent damage to underground structures.

[0015] An emergency response method for a large-scale construction damage early warning system as described above includes: In the geographic information system, the latitude, longitude, or route and burial depth of underground structures, such as pipelines, are marked. Based on the construction application approval information, the permitted construction area and the prohibited construction area are set in the electronic fence module of the large construction machinery management platform, and alarm thresholds are set. The system continuously receives vibration event information from the distributed fiber optic vibration sensor and the distributed fiber optic vibration signal demodulator of the distributed fiber optic vibration sensing system, as well as the position and motion status reported by the Beidou positioning and navigation terminal installed on the large construction machinery. The distance calculation and threshold alarm module performs time and space registration on the two types of information to calculate the horizontal and vertical distances between the large construction machinery and the underground structure. When large construction machinery enters a prohibited construction area, or when any distance is less than the alarm threshold, an alert and warning are triggered. The alarm is sent to the vehicle via a two-way communication module, and the management personnel are notified to verify and stop the machinery. If large construction machinery continues to operate under alarm conditions after being alerted or warned, or if there is construction behavior that endangers the safety of underground structures, the remote shutdown control module will issue a shutdown command to remotely force the large construction machinery to shut down. The entire emergency response process is documented and archived, recording permit information, fence settings, navigation trajectories, distributed fiber optic vibration events, response actions, and feedback results. Alarm status and response results are also updated synchronously in the geographic information system to form a closed-loop management system.

[0016] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects: First, the distributed fiber optic vibration sensing system of this invention can continuously acquire vibration signals generated by the movement or construction of large construction machinery around underground structures and output time and space information, realizing direct correlation perception between above-ground construction activities and the safety status of underground structures. Compared with relying solely on fixed cameras, it can achieve forward perception of buried targets, making up for the monitoring blind spots of "invisible and intangible" targets, and improving the early identification capability of damage risks from the source.

[0017] Secondly, the geographic information system of this invention provides the latitude, longitude, or route and burial depth information of underground structures, and performs spatial registration with the navigation information of the Beidou positioning and navigation terminal. The horizontal and vertical distances are calculated synchronously by the distance calculation and threshold alarm module, and the proximity relationship is intuitively presented in two-dimensional and three-dimensional management views. This precise registration and threshold criterion significantly reduces false alarms and missed alarms, and can trigger timely reminders and warnings before or when dangerous distances are formed, improving the accuracy and operability of early warning.

[0018] Third, the electronic fence module of this invention sets permitted and prohibited construction areas based on construction application and approval information, enabling differentiated management of orderly and disorderly construction. When large construction machinery enters a prohibited construction area or approaches a threshold distance, the system triggers an alarm according to predetermined rules, ensuring close integration of regulatory actions and approval processes, forming an executable and quantifiable spatial control mechanism, thereby effectively reducing the risk of pipeline damage caused by unauthorized construction.

[0019] Fourth, the two-way communication module and the remote shutdown control module of this invention form a rapid response link: under alarm conditions, an in-vehicle alarm is first triggered to communicate with the management terminal to persuade the vehicle to stop; if construction activities continue or endanger the safety of underground structures, a remote forced shutdown is executed. This response mechanism extends "being able to detect risks" to "being able to intervene immediately," improving the timeliness and effectiveness of emergency response and significantly reducing the probability of construction damage to underground structures. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the system structure provided in an embodiment of the present invention; Figure 2 This is a flowchart of the first emergency response method provided in an embodiment of the present invention; Figure 3 The second emergency response method flowchart is provided for an embodiment of the present invention. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The purpose of this invention is to provide a large-scale mechanical construction damage early warning system and emergency response method, which significantly reduces the risk of damage to underground structures caused by construction.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic diagram of the system structure provided in an embodiment of the present invention, such as... Figure 1 As shown, the present invention provides a large-scale mechanical construction damage early warning system, comprising: A distributed fiber optic vibration sensor and a distributed fiber optic vibration signal demodulator constitute a distributed fiber optic vibration sensing system, which is used to collect vibration signals generated by the movement or construction of large construction machinery around underground structures and output corresponding time and space information; if there are no distributed fiber optic vibration sensors installed underground in the target area, the distributed fiber optic sensors are laid in buried pipelines. Geographic Information System (GIS) is used to mark the latitude, longitude, or route, burial depth, and other information of underground structures such as pipelines, and to provide two-dimensional and three-dimensional management views. The Beidou positioning and navigation terminal installed on large construction machinery is used to report the location and movement status of large construction machinery in real time. A large construction machinery management platform is communicatively connected to the distributed fiber optic vibration signal demodulator and the Beidou positioning and navigation terminal. The platform includes: an electronic fence module, a distance calculation and threshold alarm module, a two-way communication module, and a remote shutdown control module. The electronic fence module is used to set permitted and prohibited construction areas based on construction application approval information. The distance calculation and threshold alarm module is used to register the navigation information of the large construction machinery with the location and depth of underground structures in the geographic information system, calculate the horizontal and vertical distances between the large construction machinery and the underground structures, and trigger reminders and warnings when any distance is less than a preset alarm threshold or when the large construction machinery enters a prohibited construction area. The two-way communication module is used to send alarm prompts to the vehicle and interact with management personnel via voice or text when an alarm is triggered. The remote shutdown control module is used to remotely force the large construction machinery to shut down when there are continuous violations or when the safety of underground structures is endangered, thereby achieving safety protection for underground structures.

[0026] The implementation process of this embodiment is as follows: (a) System deployment and access.

[0027] Deploy the distributed fiber optic vibration sensor along the direction of the underground structure. It is preferable to use the redundant optical fiber in the communication optical cable under the urban road as the sensing channel, and connect it to the distributed fiber optic vibration signal demodulator to form a distributed fiber optic vibration sensing system. The demodulator is communicatively connected to the large construction machinery management platform, and continuously outputs the time information and spatial information of the vibration events caused by the movement or construction of the large construction machinery. The geographic information system side pre-establishes data layers of the longitude, latitude, routing and burial depth of underground structures represented by pipelines, and provides two-dimensional management views and three-dimensional management views; the management platform establishes a data interface with the geographic information system to realize the linkage and superposition display of vibration events and spatial elements of underground structures.

[0028] (2) Beidou positioning and operation status reporting.

[0029] Install a Beidou positioning and navigation terminal on the large construction machinery. The terminal continuously reports the position and operation status at a fixed sampling period. The operation status at least includes three basic states: stationary, low-speed movement and operation. The management platform performs time synchronization and trajectory splicing on the reported data, and registers the trajectory with the underground structure layer in the geographic information system, so that the real-time position, historical trajectory of the large construction machinery and the spatial relationship of the underground structure are synchronously presented in the two-dimensional and three-dimensional management views, serving as the basic data for subsequent electronic fence determination and distance threshold determination.

[0030] (3) Electronic fence setting and distance threshold calculation.

[0031] The electronic fence module of the management platform sets the permitted construction area and the prohibited construction area according to the approved information of the construction application; for operation behaviors without approval or outside the permitted area, the electronic fence module sets a constraint to prohibit entry. The distance calculation and threshold alarm module calculates the horizontal distance and vertical distance between the large construction machinery and the underground structure based on the navigation information of the Beidou positioning and navigation terminal and the routing and burial depth information in the geographic information system, and uses the straight-line distance as the alarm criterion. When any distance is less than the preset alarm threshold, or when the large construction machinery enters the prohibited construction area, the module immediately generates an alarm event and pushes it to the disposal link.

[0032] (Four) Alarm prompt and remote shutdown disposal.

[0033] When an alarm is triggered, the two-way communication module performs audible and visual prompts and voice broadcasts in the vehicle to the vehicle end, and pushes disposal information to the management personnel for verification and persuasion to stop; if the large construction machinery still remains in operation in the alarm state, or there are construction behaviors that endanger the safety of the underground structure, the remote shutdown control module executes remote forced shutdown of the large construction machinery according to the disposal instructions of the management personnel until the risk is eliminated. The above disposal process runs through the whole process of electronic fence determination and distance threshold determination, ensuring a continuous closed loop from risk discovery to risk intervention.

[0034] (v) Joint display and event archiving.

[0035] The management platform performs temporal and spatial registration between vibration events from the distributed fiber optic vibration sensing system and navigation trajectories from BeiDou positioning and navigation terminals. When a continuous vibration response occurs at a specific location, the suspected construction excavation location is marked in the management view and overlaid with the trajectory of large construction machinery to assist in quickly confirming the construction site. The system records and archives every alarm and response, with archived information including at least construction permit information, electronic fence settings, navigation trajectory, vibration event, vehicle-side prompts, response actions, and feedback results. Simultaneously, the alarm status and response results are updated in the geographic information system, forming a long-term traceable management record for the safety protection of underground structures.

[0036] Corresponding to the above system, such as Figure 2 and Figure 3 As shown, this embodiment also provides an emergency response method for the large-scale construction damage early warning system described above, including: Step 100: Mark the latitude, longitude or route and burial depth of underground structures, represented by pipelines, in the geographic information system. Based on the construction application approval information, set the permitted construction area and the prohibited construction area in the electronic fence module of the large construction machinery management platform, and set the alarm threshold. Step 200: Continuously receive vibration event information output by the distributed fiber optic vibration sensor and the distributed fiber optic vibration signal demodulator from the distributed fiber optic vibration sensing system, as well as the position and motion status reported by the Beidou positioning and navigation terminal installed on the large construction machinery. The distance calculation and threshold alarm module performs time and space registration on the two types of information to calculate the horizontal and vertical distances between the large construction machinery and the underground structure. Step 300: When large construction machinery enters a prohibited construction area, or when any distance is less than the alarm threshold, an alert and warning are triggered. An alarm is issued inside the vehicle via a two-way communication module, and information is sent to management personnel for verification and dissuasion to stop the machinery. Step 400: If the large construction machinery continues to operate under alarm conditions after the reminder and warning, or if there is construction behavior that endangers the safety of underground structures, the remote shutdown control module shall issue a shutdown command to perform remote forced shutdown of the large construction machinery. Step 500: Record and archive the entire emergency response process, including permission information, fence settings, navigation trajectory, distributed fiber optic vibration events, response actions and feedback results, and synchronously update alarm status and response results in the geographic information system to form a closed-loop management system.

[0037] The beneficial effects of this invention are as follows: (1) This invention, by deploying distributed fiber optic vibration sensors around underground structures and connecting them to a distributed fiber optic vibration signal demodulator, can continuously collect vibration signals generated by the movement or construction of large construction machinery and output corresponding time and space information, thereby realizing direct perception of the correlation between ground construction activities and underground structures such as pipelines and tunnels. Compared with relying solely on video monitoring, this invention can achieve pre-monitoring before construction damage occurs, improving the timeliness and accuracy of risk identification.

[0038] (2) This invention uses a geographic information system to mark the latitude, longitude, route, and burial depth information of underground structures, and combines this with a Beidou positioning and navigation terminal installed on large construction machinery to achieve spatial registration of navigation information and underground structure information. The distance calculation and threshold alarm module can simultaneously calculate the horizontal and vertical distances and compare them with preset thresholds. When either distance is insufficient or the machinery enters a prohibited area, an alarm is triggered, effectively reducing false alarms and missed alarms, making the early warning more intelligent and scientific.

[0039] (3) The electronic fence module of the present invention sets permitted and prohibited construction areas based on the construction application approval information, thereby distinguishing between orderly and disorderly construction at the management platform level. Once large construction machinery without approval enters the prohibited area, the system immediately alarms and pushes disposal instructions, realizing the deep integration of the approval process and on-site monitoring, strengthening the compliance constraints on construction behavior, and reducing pipeline damage accidents caused by "disorderly construction".

[0040] (4) When a large construction machine triggers an alarm, the two-way communication module provides audible and visual prompts and voice broadcasts inside the vehicle, and interacts with management personnel in real time to persuade them to stop. If the persuasion to stop is ineffective, the remote shutdown control module can directly force the large construction machine to stop remotely. This mechanism establishes a complete chain from "risk detection - alarm prompt - manual confirmation - remote shutdown," ensuring the timeliness and effectiveness of emergency response and effectively protecting the safety of underground structures.

[0041] (5) This invention realizes a closed-loop management system covering the entire chain, from distributed optical fiber vibration signal acquisition, BeiDou positioning trajectory monitoring, electronic fence constraint, threshold calculation and early warning, two-way communication handling to remote shutdown and event archiving, through a management platform. All alarm and handling processes can be traced and updated synchronously with the geographic information system, facilitating traceability and responsibility identification. This mechanism not only improves the reliability of underground structure safety protection, but also provides municipal management departments with a visualized, quantifiable, and traceable digital governance tool.

[0042] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0043] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A large-scale mechanical construction damage early warning system, characterized in that, include: A distributed fiber optic vibration sensor and a distributed fiber optic vibration signal demodulator constitute a distributed fiber optic vibration sensing system, which is used to collect vibration signals generated by the movement or construction of large construction machinery around underground structures and output corresponding time and space information; if there are no distributed fiber optic vibration sensors installed underground in the target area, the distributed fiber optic sensors are laid in buried pipelines. Geographic Information System (GIS) is used to mark the latitude, longitude, or route, burial depth, and other information of underground structures such as pipelines, and to provide two-dimensional and three-dimensional management views. The Beidou positioning and navigation terminal installed on large construction machinery is used to report the location and movement status of large construction machinery in real time. A large construction machinery management platform is communicatively connected to the distributed fiber optic vibration signal demodulator and the Beidou positioning and navigation terminal. The platform includes: an electronic fence module, a distance calculation and threshold alarm module, a two-way communication module, and a remote shutdown control module. The electronic fence module is used to set permitted and prohibited construction areas based on construction application approval information. The distance calculation and threshold alarm module is used to register the navigation information of the large construction machinery with the location and depth of underground structures in the geographic information system, calculate the horizontal and vertical distances between the large construction machinery and the underground structures, and trigger reminders and warnings when any distance is less than a preset alarm threshold or when the large construction machinery enters a prohibited construction area. The two-way communication module is used to send alarm prompts to the vehicle and interact with management personnel via voice or text when an alarm is triggered. The remote shutdown control module is used to remotely force the large construction machinery to shut down when there are continuous violations or when the safety of underground structures is endangered, thereby achieving safety protection for underground structures.

2. The large-scale mechanical construction damage early warning system according to claim 1, characterized in that, The distributed optical fiber vibration sensor is composed of surplus optical fibers from the communication optical cables buried under urban roads by telecommunications operators. The distributed optical fiber vibration signal demodulator is communicatively connected to the large construction machinery management platform and is used to send vibration data to the large construction machinery management platform and link with the geographic information system to display the operating trajectory and construction excavation location of the large construction machinery.

3. The large-scale mechanical construction damage early warning system according to claim 1, characterized in that, The electronic fence module sets permitted and prohibited construction areas based on the approved construction application information. It triggers an alarm and sends a disposal command when large construction machinery enters the prohibited construction area without approval.

4. The large-scale mechanical construction damage early warning system according to claim 1, characterized in that, The distance calculation and threshold alarm module uses straight-line distance as the alarm criterion. When the straight-line distance between the large construction machinery and the underground structure is less than the alarm threshold, an alarm is triggered inside the vehicle. If the machinery continues to move under the alarm conditions, the remote shutdown control module will execute a forced shutdown.

5. The large-scale mechanical construction damage early warning system according to claim 1, characterized in that, The distance calculation and threshold alarm module calculates the distance between large construction machinery and underground structures based on the routing and burial depth information of underground structures in the geographic information system, and compares it with the alarm threshold.

6. The large-scale mechanical construction damage early warning system according to claim 1, characterized in that, The two-way communication module is used to communicate with the project management unit to confirm whether large construction machinery is permitted to operate, and to issue a voice broadcast inside the vehicle when an alarm is triggered to persuade the vehicle to stop.

7. The large-scale mechanical construction damage early warning system according to claim 1, characterized in that, The Beidou positioning and navigation terminal is a vehicle positioning and navigation system that is mandated to be installed by the competent authority to ensure the continuous reporting of the location and operating trajectory of large construction machinery.

8. The large-scale mechanical construction damage early warning system according to claim 1, characterized in that, The large construction machinery management platform registers the location and operating trajectory of the large construction machinery with the location of underground structures in the geographic information system, so as to synchronously display the alarm status and proximity relationship in the management view; when the large construction machinery enters the prohibited construction area set according to the approval information, the electronic fence module triggers an alarm, the two-way communication module sends a persuasion message, and the remote shutdown control module performs a forced shutdown if the persuasion is ineffective.

9. The large-scale mechanical construction damage early warning system according to claim 4, characterized in that, The vehicle alarm includes a voice announcement via a vehicle loudspeaker to stop construction and prevent damage to underground structures.

10. An emergency response method for a large-scale mechanical construction damage early warning system as described in any one of claims 1 to 9, characterized in that, include: In the geographic information system, the latitude, longitude, or route and burial depth of underground structures, such as pipelines, are marked. Based on the construction application approval information, the permitted construction area and the prohibited construction area are set in the electronic fence module of the large construction machinery management platform, and alarm thresholds are set. The system continuously receives vibration event information from the distributed fiber optic vibration sensor and the distributed fiber optic vibration signal demodulator of the distributed fiber optic vibration sensing system, as well as the position and motion status reported by the Beidou positioning and navigation terminal installed on the large construction machinery. The distance calculation and threshold alarm module performs time and space registration on the two types of information to calculate the horizontal and vertical distances between the large construction machinery and the underground structure. When large construction machinery enters a prohibited construction area, or when any distance is less than the alarm threshold, an alert and warning are triggered. The alarm is sent to the vehicle via a two-way communication module, and the management personnel are notified to verify and stop the machinery. If large construction machinery continues to operate under alarm conditions after being alerted or warned, or if there is construction behavior that endangers the safety of underground structures, the remote shutdown control module will issue a shutdown command to remotely force the large construction machinery to shut down. The entire emergency response process is documented and archived, recording permit information, fence settings, navigation trajectories, distributed fiber optic vibration events, response actions, and feedback results. Alarm status and response results are also updated synchronously in the geographic information system to form a closed-loop management system.

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