Bridge single steel strand cable replacement construction progress visual management system

Abstract

The application relates to the technical field of bridge construction safety and process control, and discloses a bridge single steel strand cable replacement construction progress visual management system, which comprises a data sensing module, a digital twin and modeling module, a core logic and control module and a man-machine interaction module; the digital twin and modeling module creates a digital component corresponding to a physical component, and defines a digital capability with a locking and unlocking state for the digital component; the core logic and control module generates a process state token carrying work authorization information, verifies the process flow and dynamically unlocks the corresponding digital capability according to the on-site physical identification and sensor data collected by the data sensing module, and simultaneously carries out risk intervention based on a risk model. The application can realize automatic and accurate matching of construction tools, positions and processes, forcibly guarantee the compliance of the construction process, and improve the intrinsic safety level and management efficiency of the construction process.

Description

Technical Field

[0001] This invention relates to the field of bridge construction safety and process control technology, specifically to a visual management system for the construction progress of replacing a single steel strand in a bridge. Background Technology

[0002] The replacement and maintenance of bridge cables is crucial for ensuring the safety and service life of large bridge structures. Cable replacement work is typically carried out in complex site environments, involving numerous interconnected procedures that demand extremely stringent requirements for precision, timing, and safety. Currently, on-site management of cable replacement work primarily relies on pre-prepared construction organization plans, paper-based technical briefing documents, and safety work permits, coupled with supervision and coordination from on-site management personnel to ensure smooth progress. Although digital technologies such as Building Information Modeling (BIM) have been applied in the design and presentation phases, a significant disconnect remains between the digital workflow blueprints and the physical on-site operations in the core construction execution phase.

[0003] This disconnect leads to inherent flaws in existing technologies. First, ensuring compliance with construction procedures heavily relies on human responsibility and experience. At the system level, there's a lack of a technological means to automatically verify and enforce the correct personnel, locations, tools, and procedures. This means the risk of construction deviations or even safety accidents caused by misoperation, incorrect sequences, or tool misuse remains constant. Second, the management of dynamic risks during construction is often reactive. Even with on-site environmental or equipment sensors, the data is often only used for post-event review or passive monitoring, failing to be linked to the construction process in real-time to automatically intervene and stop dangerous operations at critical points. This lack of proactive and forward-looking safety assurance capabilities results in a deficiency.

[0004] Finally, the recording of construction process data is often scattered and non-accompanying, making it difficult to form a digital archive that fully links operating instructions, personnel behavior, equipment status and environmental parameters in an unalterable manner. This brings great difficulties to subsequent construction quality traceability and responsibility determination. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a visual management system for the construction progress of single steel strand cable replacement in bridges. This system solves the problems in bridge cable replacement construction caused by the lack of technical means to conduct mandatory, closed-loop verification between digital processes and the physical site, which leads to difficulties in ensuring operational compliance, controlling process risks, and tracing construction data.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual management system for the construction progress of replacing a single steel strand in a bridge, comprising:

[0007] The data sensing module is used to collect physical markers and real-time sensor data that reflect the status of the construction site;

[0008] A digital twin and modeling module is used to create multiple digital components, each of which has at least one digital power for defining an operation that can be performed, and the digital power has a locked and unlocked power state;

[0009] The core logic and control module, which integrates a risk model, is used for:

[0010] Generate a process status token associated with work authorization information for the cable replacement construction task;

[0011] The process status token is controlled to conditionally flow among multiple digital components, wherein the conditional flow depends on the result of matching and verifying the physical identifier collected by the data sensing module with the job authorization information associated with the process status token, and the flow path of the process status token is also controlled by dynamic adjustment instructions generated based on the real-time sensor data and risk model.

[0012] When the process status token is transferred to the target digital component, the power status of the digital power of the target digital component is updated from locked to unlocked;

[0013] The human-computer interaction module is used to generate and display a construction progress visualization interface based on the current position of the process status token and the power status of the digital power.

[0014] Preferably, the physical markings specifically include tool markings set on physical construction tools and location markings set on physical bridge components;

[0015] The tool identifier and the location identifier are physical anchors carried by NFC tags, Bluetooth Low Energy beacons, or QR codes.

[0016] Preferably, the job authorization information is encapsulated in a digital safety job ticket payload carried by the process status token;

[0017] Based on the digital safety work ticket payload, when the process status token is transferred to the target digital component, the human-machine interaction module extracts the safety procedures corresponding to the target digital component from the digital safety work ticket payload and displays them.

[0018] Preferably, the core logic and control module includes a verification engine, which is used for:

[0019] Perform the matching verification, and upon successful verification, allow the process status token to continue circulating.

[0020] Preferably, the core logic and control module further includes a risk management engine, which is used for:

[0021] Based on the risk model, the real-time sensor data is analyzed to determine whether there is a risk, and when a risk is determined to exist, a dynamic adjustment instruction is generated to block or replan the flow path of the process status token.

[0022] Preferably, the risk management engine is also used for:

[0023] When a risk is identified, a risk simulation instruction is generated based on the risk model.

[0024] Based on the risk pre-simulation instruction, the risk management engine uses the human-computer interaction module to pre-display the downstream processes affected by the risk on the construction progress visualization interface by highlighting the path.

[0025] Preferably, the human-computer interaction module is further used for:

[0026] In the construction progress visualization interface, the digital component where the process status token is currently located is highlighted.

[0027] Preferably, the human-computer interaction module includes a mobile work terminal interface;

[0028] The mobile work terminal interface is equipped with execution controls corresponding to specific operations defined by the digital authority, and the execution controls are activated only when the digital authority is in the unlocked state, allowing engineers to confirm operations or interact.

[0029] Preferably, the human-computer interaction module is further configured to: dynamically display the work authorization information of the corresponding stage in the digital safety work ticket payload according to the stage in which the work status token is located in the construction workflow.

[0030] Preferred options also include:

[0031] The data persistence module is used to record every transfer of the process status token and every change in the status of each digital power in the form of an event log, forming a traceable digital construction record.

[0032] This invention provides a visual management system for the construction progress of replacing single steel strands in bridges. It has the following beneficial effects:

[0033] 1. This invention sets up process status tokens, digital powers, and physical identifiers, and uses a built-in verification engine to conditionally constrain the flow of process status tokens. This forcibly binds the digital construction process with the tools and locations on the physical site, ensuring that the process status token can only flow to the next stage and unlock the corresponding powers after the current process has been physically verified (the correct tools are in the correct locations). This avoids construction deviations and safety risks caused by human error, misuse of tools, or incorrect sequence at the system level.

[0034] 2. This invention achieves proactive and forward-looking management of construction risks by embedding a risk model in the core logic and control module and using a risk management engine to continuously analyze real-time sensor data collected by the data perception module. When environmental or equipment parameters are detected to exceed safety thresholds, the system can automatically generate dynamic adjustment instructions, block or replan the flow path of process status tokens, and stop potentially dangerous operations. This changes the traditional passive mode of construction safety that relies on post-event response or personnel supervision, and improves the inherent safety of the construction process.

[0035] 3. This invention, through a human-computer interaction module, transforms abstract system states into intuitive operational guidelines for on-site engineers. Specifically, the highlighting function for the currently occupied digital component of the process status token, and the binding of the availability status of execution controls on the mobile work terminal interface with the digital authority status, provide engineers with a clear, unambiguous task focus and a single operational entry point. Simultaneously, the data persistence module records the entire process of token transfer and authority changes through event logging, forming a complete and tamper-proof digital construction archive, providing a solid data foundation for construction quality traceability and responsibility determination. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall system architecture of the present invention;

[0037] Figure 2 This is a schematic diagram of the data sensing module of the present invention;

[0038] Figure 3 This is a schematic diagram illustrating the functional structure of the digital twin and modeling module of the present invention;

[0039] Figure 4 This is a schematic diagram illustrating the core logic and control module functions of the present invention;

[0040] Figure 5 This is a schematic diagram of the system workflow of the present invention. Detailed Implementation

[0041] 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.

[0042] See attached document Figure 1 The system provided by this invention has the overall function of synchronizing and verifying the digital construction process model with the physical construction site in real time and in a closed loop, thereby achieving refined, visualized and safe compliance management of the cable replacement construction process.

[0043] The system's hardware includes field-deployed sensors, physical markers, and computing devices that run the core logic. The software includes the following functional modules: a data sensing module, a digital twin and modeling module, a core logic and control module, a human-computer interaction module, and a data persistence module.

[0044] The data sensing module is positioned as the system's input interface and is configured to collect two types of key data from the physical construction site: one is the physical identifier obtained by reading physical anchor points, and the other is the process parameters measured in real time by various sensors, i.e., real-time sensor data.

[0045] The digital twin and modeling module is designed to create a digital mirror of the construction process. It is configured to create multiple digital components that correspond one-to-one with physical bridge components and construction equipment, and to predefine the specific operations that each digital component is allowed to perform in the construction process, i.e., digital powers.

[0046] The core logic and control module serves as the system's decision-making and control hub. This module receives real-time data from the data perception module and, based on preset construction logic, verification rules, and risk models, updates and manages the status of digital components defined in the digital twin and modeling module.

[0047] The human-machine interface module is positioned as the system's output and interactive interface. It is configured to present the processing results of the core logic and control module in a visual form to on-site engineers or remote managers, and to receive instruction input from operators.

[0048] The data persistence module is positioned as the system's recording and tracing unit, and is configured to record all critical events and state changes that occur in the system in an immutable manner.

[0049] During system operation, multiple modules interact and collaborate in the following ways: the data perception module sends the collected field data to the core logic and control module; the core logic and control module determines and updates the status of digital components in the digital twin and modeling module based on the received data and internal logic, and sends the updated status information to the human-computer interaction module and the data persistence module; the human-computer interaction module receives and displays the status information, and simultaneously sends the user's operation commands back to the core logic and control module.

[0050] See attached document Figure 2 The data sensing module is configured as an information bridge between the system and the physical construction site. Its specific implementation includes the collection of physical identifiers and the collection of real-time sensor data.

[0051] The collection of physical identifiers is achieved through pre-deployed physical anchors at the construction site. These physical anchors are physical media carrying specific information, and their specific forms include, but are not limited to, Near Field Communication (NFC) tags, Bluetooth Low Energy (BLE) beacons, or QR codes. These physical anchors are respectively fixed to physical construction tools and bridge components. For example, a tool identifier is embedded in an NFC tag, encapsulated, and installed on the jack's housing; a location identifier is generated as a QR code and affixed to the anchor plate corresponding to the steel strand to be replaced.

[0052] Each physical anchor point stores structured data information to uniquely identify the object it is attached to. In one specific embodiment, the data structure of this information can be defined as follows:

[0053] ;

[0054] in, It is a globally unique identifier, such as a 128-bit UUID; This is a type field with a value set of {TOOL,LOCATION}, which respectively indicate whether the anchor point identifies a tool or a location; For example, for a tool, its content is hydraulic jack, model YCW-250; for a location, its content is north main tower, PO1 anchor hole. A data signature or checksum is used to verify the integrity and authenticity of the data read.

[0055] The data sensing module includes a reading device for reading the aforementioned physical anchor points. Depending on the specific technical form of the physical anchor point, the reading device can be an NFC reader / writer, a BLE scanning module, or a camera integrated into the mobile terminal. When performing a reading operation, the reading device acquires the structured information stored in the physical anchor point and packages it into a data frame, sending it to the core logic and control module.

[0056] Real-time sensor data acquisition is achieved through multiple sensors deployed in key equipment or areas. The types and deployment locations of these sensors are predetermined based on the process requirements and risk assessment of the cable replacement construction. For example, pressure sensors are installed in the hydraulic circuits of the jacks to measure real-time tension; displacement sensors are installed on the pistons of the jacks to measure the elongation of the steel strands; and anemometers are installed on the top of the bridge towers to monitor the ambient wind speed.

[0057] The data sensing module also includes a data acquisition unit for processing and forwarding signals generated by the sensor. In one embodiment, the raw analog signal output by the sensor (e.g., a 4-mA current signal or a 0-5V voltage signal) is first converted into a digital signal by an analog-to-digital converter (ADC). Subsequently, the data acquisition unit collects data from the converted sensor via wired or wireless means. Wired methods may employ industrial fieldbus technologies such as Modbus-RTU or CAN bus; wireless methods may employ low-power wide-area network technologies such as LoRaWAN.

[0058] The data acquisition unit encapsulates the collected sensor data into data packets with timestamps and sensor source identifiers, and sends them to the core logic and control module periodically or triggered by events via a preset communication protocol (such as MQTT or TCP / IP). A typical sensor data packet. The data structure can be defined as:

[0059] ;

[0060] in, A unique device identifier for the sensor; This is a high-precision timestamp of when the data was measured; A set of one or more measurements, specifically represented as: .

[0061] See attached document Figure 3 The digital twin and modeling module is positioned to build a digital mirror of the construction process, providing a structured and programmable construction object model for the core logic and control module.

[0062] This module first parses and extracts physical entity information related to the cable replacement construction based on the project's Building Information Modeling (BIM) or Computer-Aided Design (CAD) data through a data interface. These physical entities include bridge components (such as anchor plates and cable saddles) and construction equipment (such as jacks and oil pumps). For each identified physical entity, the module instantiates a corresponding digital component in the system's database or memory.

[0063] Each digital component's data structure contains its globally unique identifier (which corresponds to the physical identifier collected by the data sensing module), three-dimensional geometric information, material properties, and a set of one or more digital powers.

[0064] Digital powers are the core attributes of a digital component. They are digital abstractions and permission definitions of a specific physical operation that is allowed to be performed on that digital component. For example, for a digital component representing cable strand P01, its associated set of digital powers may include: installing a new cable, pre-tensioning, locking the anchor, removing the old cable, etc.

[0065] In one specific embodiment, a digital power The data structure is precisely defined as:

[0066] ;

[0067] in, A unique identifier for a power, such as TENSION-P01, used to be uniquely indexed in the system;

[0068] The current state of the power has the following set of values: All digital powers are initially set to LOCKED. This state field is read and updated by the core logic and control module 3. LOCKED indicates that the prerequisites for executing the operation represented by the power have not been met, and the operation is prohibited; UNLOCKED indicates that the prerequisites have been met, and the operation is permitted.

[0069] The set of preconditions required to activate a power is a structured set of rules. For example, for the power TENSION-P01, its... The set may include the following specific conditions: [Condition 1: The power to install the new cable in the previous process has been executed and recorded; Condition 2: The current position identifier reported by the data sensing module is P01 anchor hole; Condition 3: The current tool identifier reported by the data sensing module is YCW-250 type jack; Condition 4: The environmental wind speed sensor value reported by the data sensing module is less than 10m / s].

[0070] This refers to the action parameters or instruction set associated with the execution of a power. This field defines the operation that the system should perform or the process parameters that should be met after a power is activated and confirmed by the user.

[0071] For example, regarding the TENSION-P01 power, its Fields may contain:

[0072] {target_force:2550.0,unit:'kN',tolerance:0.02} is used for subsequent closed-loop control and data verification.

[0073] See attached document Figure 4 The core logic and control module is the decision-making and execution center of the system. It is responsible for generating and managing the execution carriers of the construction process and for strictly controlling the progress of the process based on external inputs and internal rules. Functionally, this module includes a process status token manager, a verification engine, and a risk management engine.

[0074] The Work Status Token Manager's function is to generate and maintain a work status token based on a pre-defined cable replacement construction task. This work status token is the core data carrier driving the flow of data between different digital components throughout the construction process. When a cable replacement task starts, the manager instantiates a work status token. Its data structure can be defined as:

[0075] ;

[0076] in, This is a unique identifier for the current cable-changing task; For tokens The identifier of the currently stationary digital component; updates to this field reflect the progress of construction. For tokens The internal state of, for example Used for macro-level process control; The payload of job authorization information carried by the token is specifically implemented as a digital security job ticket payload.

[0077] Digital safety work permit payload It is a structured dataset whose content is closely related to the current construction task. The payload contains all the authorization conditions that need to be met to perform a specific procedure, such as a list of authorized tools (tool_list), a location permit (location_permit), and a safety protocol text (safety_protocol) that needs to be shown to the operator.

[0078] In one embodiment, the content of the payload is phased, that is, for a complete heat exchange task, it is divided into multiple sub-stages, each sub-stage corresponding to an independent subset of authorization information. When the token flows to the digital components of different stages, it loads and enables the authorization information of the corresponding stage.

[0079] The verification engine's function is to verify the process status token. When attempting to transfer data from one digital component to the next target digital component, a mandatory matching verification is performed. Upon receiving a transfer request, the verification engine retrieves the real-time collected tool identifier and location identifier from the data awareness module and matches them with the token. Current digital safety work permit payload The authorization information and the digital powers of the target digital components. Preconditions defined in Perform a comparison. This matching verification function. The decision logic can be expressed as:

[0080] ;

[0081] in, As a condition for verifying location accuracy, the collected location identifier must be consistent with... The location_permit field and target numeric weights Matches the preset position markers; As a tool authorization verification condition, the collected tool identifier must exist in Within the tool_list; As a condition for verifying the completion of the preceding process, it is required that the preceding digital rights that triggered this flow have been correctly executed.

[0082] If and only if the verification function When the output is true, the verification engine determines that the verification is successful and grants permission for the process status token. The data is transferred to the target digital component, and a status update instruction is generated simultaneously to update the corresponding digital powers of the target digital component. The status is updated from LOCKED to UNLOCKED. If the verification result is false, the process is rejected, and the system sends an alarm to the operator through the human-machine interaction module. The risk management engine's function is to dynamically assess and intervene in the construction process based on real-time data. This engine integrates a preset risk model that defines the safety threshold ranges for key sensor parameters and combined risk rules. The risk management engine periodically receives real-time sensor data packets sent by the data sensing module. This is then input into the risk model for analysis. State transition function under risk control. It can be represented as:

[0083] ;

[0084] in, For tokens in time The state; For events that trigger state transitions, such as a verification pass event or a sensor data update event; The risk assessment result, generated based on real-time sensor data and a risk model, serves as a mandatory gating condition for state transitions. For the token in the next moment The state.

[0085] When the risk assessment results When a risk is detected (e.g., abnormal jack pressure or excessive wind speed is detected), the risk management engine generates a dynamic adjustment command. This command can be a blocking command, which forcibly restricts the digital capabilities related to one or more downstream processes. The status is set to LOCKED, and tokens are suspended. The process continues until the risk status is resolved. Furthermore, the risk management engine can generate risk prediction instructions, which, based on the changing trends of current sensor data, predict the downstream processes that will be affected in the near future and send this information to the human-machine interaction module for pre-visualization.

[0086] The human-computer interaction module serves as the visual output of system status and the input of user operation commands. Its specific implementation includes a construction progress visualization interface and a mobile operation terminal interface.

[0087] A construction progress visualization interface is configured to provide managers or site engineers with a macroscopic view of the current status of the entire cable replacement construction task. In one embodiment, this interface is presented in the form of a 3D digital twin scene or a 2D flowchart. The interface receives process status tokens in real time from the core logic and control module. Location information, i.e., the identifier of the digital component currently in which it is located. Upon receiving this information, the interface will highlight the 3D model or 2D graphics node corresponding to the identifier in the rendering engine, for example, by changing its color or adding a glowing effect, thereby clearly indicating the current construction focus.

[0088] When the human-computer interaction module receives a risk pre-simulation instruction from the risk management engine, the construction progress visualization interface will pre-mark the digital components corresponding to these downstream processes in a visual style that is different from normal highlighting (e.g., using yellow or red) according to the list of affected downstream processes contained in the instruction, and may also include text annotations on the risk type.

[0089] The mobile work terminal interface is a direct operating interface for field engineers, typically running on portable, ruggedized computing devices. This interface includes execution controls corresponding to the physical operations defined by specific digital capabilities. For example, for pre-tensioning capabilities, there would be a "Start Tensioning" button; for locking anchoring capabilities, there would be a "Confirm Lock" checkbox.

[0090] The available state of the control, and the power state of the corresponding digital power. A strict binding is implemented. This binding relationship is achieved through an event listener and response mechanism. When the core logic and control module changes the state of a certain digital function... When a state change occurs from LOCKED to UNLOCKED, a state change event is published. The human-computer interaction module subscribes to this event and, upon receiving it, updates the UI state of the mobile terminal interface by setting the disabled property of the execution control corresponding to the activated function to false.

[0091] When the function state is LOCKED, the corresponding execution control appears gray or semi-transparent on the interface and does not respond to any user input (such as clicks or touches). Only when the corresponding function state changes to UNLOCKED is the execution control activated and presented in a normal operable state, allowing engineers to confirm operations or interact. When an engineer operates the activated execution control, the human-computer interaction module will send this operation event back to the core logic and control module as input to trigger the next round of verification or state update.

[0092] In addition, when a digital power is unlocked, the mobile work terminal interface will also display the process status token. Carrying digital safety work permit payload The system extracts the safety protocol text (safety_protocol) related to the current process and displays it in a designated area of ​​the interface for engineers to review.

[0093] The data persistence module provides a complete, chronological, and immutable record of all critical behaviors and state changes in the system, thereby creating a traceable and auditable digital construction archive.

[0094] In one embodiment, the data persistence module is implemented using an event sourcing technique. When a preset key business event occurs in the core logic and control module, such as the successful transfer of a process status token, a change in the status of a digital authority, or the generation of a risk intervention instruction, the core logic and control module generates a corresponding event object and sends it to the data persistence module.

[0095] After receiving the event object, the data persistence module encapsulates it into a standardized event log. And store them. Each event log The data structure can be defined as:

[0096] ;

[0097] in, This is a globally unique identifier for the event, which can be an sequentially incrementing integer or a UUID, used for unique indexing; A high-precision timestamp generated by the system when the event occurs, used to ensure strict timeliness of all logs; This is an enumeration value that identifies the type of event and is used to distinguish events of different natures. It is a structured data field used to record detailed context information about the event.

[0098] Depending on the type of event The possible values ​​and their corresponding values The content structure also differs. Specific event types include at least:

[0099] Process status token flow event: its The system records the source digital component identifier, target digital component identifier, operator identifier that triggered the flow, and a snapshot of the physical identifiers (tool identifier and location identifier) ​​used during verification.

[0100] Digital power status change event: its The system records the digital power identifier being manipulated, the digital component identifier to which it belongs, the state before the change (LOCKED), and the state after the change (UNLOCKED).

[0101] Risk intervention events: its The system records the type of risk that triggered the intervention, the sensor identifier used as the basis for the judgment and its measurement value at that time, as well as the specific instructions executed by the risk management engine (such as blocking the path or issuing an early warning).

[0102] Operator interaction events: The system records the operator's identifier, the identifier of the execution control on the mobile terminal interface they are operating, and the type of interaction (e.g., confirming execution or canceling the operation).

[0103] In one specific implementation, all event logs are written to an append-only storage medium, such as a time-series database or a dedicated log file system. To ensure the immutability and verifiability of the records, each newly generated event log... Before being stored, it will be compared with the hash value of the previous event log. Perform concatenation and calculate a new hash value. This process can be represented as:

[0104] ;

[0105] in, This indicates a data concatenation operation. It involves concatenating each hash value... Its corresponding event log These records are stored together, forming a hash chain. Any modification to the historical records will cause all subsequent hash value verifications to fail, thus ensuring the integrity and authenticity of the construction records.

[0106] See attached document Figure 5 The following will use a specific application scenario to illustrate in detail the collaborative working method of the various modules of the system of the present invention.

[0107] Before a cable replacement task begins, management personnel input task instructions via the human-machine interface module, specifying the cable strand to be replaced as the strand at anchor hole PO1 of the north main tower. Upon receiving the instruction, the core logic and control module instantiates a process status token within its internal process status token manager. Its initial The field is set to point to the pre-work preparation digital component at the start of the process. Simultaneously, the manager generates a digital safety work ticket payload associated with this task. It contains a list of all authorized tools, location permissions, and security protocol texts for each stage required to perform this task.

[0108] At this point, the pre-work preparation digital component in the flowchart is highlighted, along with its associated digital function confirming the completion of pre-work preparation. status The status is UNLOCKED. After the field engineer reviews and confirms all preparations (such as tool inventory and safety briefing) on ​​the mobile work terminal interface, they click the activated confirmation button to complete the execution.

[0109] After receiving the confirmation event indicating preparation is complete, the core logic and control module will send the process status token. of The field is updated to the next digital component, namely the old strand cut. At this point, the old strand cut component is highlighted on the visualization interface, but its associated execution cut digital power remains unchanged. status Still LOCKED. The corresponding execution control for cutting on the mobile work terminal interface is grayed out and unavailable.

[0110] According to the digital safety work permit load As required, engineers, armed with authorized cutting tools (e.g., a grinding wheel with an NFC tool tag) and a mobile work terminal, arrive at a designated location (e.g., the PO1 anchor hole operation platform with a location identification QR code). The engineer uses a reader on the mobile work terminal to read the NFC tag on the tool and the QR code on the location, respectively. The data sensing module sends the collected tool and location identifiers to the core logic and control module. The verification engine within the module executes a matching verification function. Determine whether the collected identifier matches The authorization information required at the current stage is completely matched. Once the result is true, the verification engine allows the process to proceed, and the core logic and control module will execute the state segmentation of digital powers. The status is updated to UNLOCKED. The human-machine interface module then responds to the status change event, activating the cut execution control on the mobile work terminal interface. The engineer clicks the control to confirm the completion of the physical operation.

[0111] In the subsequent new cable tensioning process, the process status token The tensioning digital component is now stationary, and the digital tensioning function has been unlocked. Engineers operate the jacks to begin applying tension to the new cable strands. During this process, the data sensing module continuously collects and sends real-time data from the jack pressure sensors and the anemometer at the top of the bridge tower to the core logic and control module.

[0112] The risk management engine continuously receives this data and inputs it into its internal risk model for analysis. At a certain moment, the instantaneous wind speed detected by the anemometer exceeds the preset safety threshold (e.g., 15 m / s) in the risk model. The risk assessment results from the risk management engine... A high wind speed risk was detected. Subsequently, the risk management engine generated a dynamic adjustment command, which was a lockout command. The core logic and control module executed this command, forcibly reverting the current state of the tensioned digital power. The token was changed back from UNLOCKED to LOCKED, and the digital capabilities of all subsequent procedures (such as anchoring and data acquisition) were also set to LockeD. internal state It has been updated to suspenoeD.

[0113] The human-computer interaction module disables all execution controls on the mobile work terminal interface and issues a risk warning to the engineer. Simultaneously, the construction progress visualization interface displays a preview of the tensioning and all downstream processes' digital components highlighted in red.

[0114] After a period of time, the on-site wind speed dropped below the safe threshold. Based on continuously received sensor data, the risk management engine determined that the risk had been resolved. It generated a new dynamic adjustment command to unblock the process path. Upon receiving this command, the core logic and control module sent a token... internal state Restore to ACTIVE and stretch the state of digital powers. The process was reset to UNLOCKED. The tensioning execution control on the mobile work terminal interface was reactivated, and the construction process resumed from where it was interrupted.

[0115] After all processes are completed in sequence according to the above procedure, the process status token is displayed. The process flows to the final task completion node. Throughout this process, the data persistence module uses event logs. In this format, every token transfer, every change in authority status, every operator interaction, and the entire process of risk intervention are recorded. These logs, with timestamps and contextual data, are written to the database, forming a complete and tamper-proof digital construction record for subsequent quality traceability and completion archiving.

Claims

1. A bridge single steel strand cable replacement construction progress visual management system, characterized in that, Comprise: a data perception module for collecting physical identifiers reflecting the state of the construction site and real-time sensor data; the physical identifiers specifically include tool identifiers set on physical construction tools and location identifiers set on physical bridge components; the tool identifiers and the location identifiers are physical anchors carried by NFC tags, low-power Bluetooth beacons or two-dimensional codes; a digital twin and modeling module for creating a plurality of digital components, each of which has at least one digital capability for defining an allowed operation to be performed, and the digital capability has a locked and unlocked capability state; a core logic and control module with a risk model integrated inside, for: generating a procedure state token associated with job authorization information for a cable replacement construction task; controlling the conditional flow of the procedure state token between a plurality of digital components, wherein the conditional flow depends on the matching verification result of matching the physical identifiers collected by the data perception module with the job authorization information associated with the procedure state token, and the flow path of the procedure state token is also controlled by dynamic adjustment instructions generated according to the real-time sensor data and the risk model; when the procedure state token flows to the target digital component, updating the capability state of the digital capability of the target digital component from locked to unlocked; a human-computer interaction module for generating and displaying a construction progress visualization interface according to the current location of the procedure state token and the capability state of the digital capability; the human-computer interaction module includes a mobile job terminal interface; the mobile job terminal interface is provided with an execution control corresponding to the operation defined by the digital capability, and the execution control is activated only when the capability state of the digital capability is unlocked, for the engineer to confirm or interact.

2. The bridge single steel strand cable replacement construction progress visual management system according to claim 1, characterized in that, The job authorization information is encapsulated in a digital safety job ticket payload carried by the procedure state token; based on the digital safety job ticket payload, when the procedure state token flows to the target digital component, the human-computer interaction module extracts and displays the safety procedures corresponding to the target digital component from the digital safety job ticket payload.

3. The bridge single steel strand cable replacement construction progress visual management system according to claim 1, characterized in that, The core logic and control module includes a verification engine for: performing the matching verification, and allowing the procedure state token to continue flowing after successful verification.

4. The bridge single steel strand cable replacement construction progress visual management system according to claim 1, characterized in that, The core logic and control module also includes a risk management engine for: based on the risk model, analyzing the real-time sensor data to determine whether there is a risk, and generating the dynamic adjustment instructions for blocking or re-planning the flow path of the procedure state token when it is determined that there is a risk.

5. The bridge single steel strand cable replacement construction progress visual management system according to claim 4, characterized in that, The risk management engine is also used to: when it is determined that there is a risk, generate a risk preview instruction according to the risk model; based on the risk preview instruction, the risk management engine pre- displays the downstream procedures affected by the risk in the form of a highlighted path on the construction progress visualization interface through the human-computer interaction module.

6. The bridge single steel strand cable replacement construction progress visual management system according to claim 1, characterized in that, The human-computer interaction module is further configured to highlight the digital component currently stopped by the process state token in the construction progress visualization interface.

7. The bridge single steel strand cable replacement construction progress visual management system according to claim 2, characterized in that, The human-computer interaction module is further configured to dynamically display the operation authorization information of the corresponding stage in the digital safety operation ticket load according to the stage of the process state token in the construction workflow.

8. The bridge single steel strand cable replacement construction progress visual management system according to claim 1, characterized in that, Further comprising: A data persistence module configured to record each flow of the process state token and each change of the capability state of each digital capability in the form of an event log, forming a traceable digital construction record.

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