Asset management method, system and equipment based on BIM (Building Information Modeling), indoor positioning and RFID (Radio Frequency Identification Device), and medium

Abstract

The invention discloses an asset management method, system and device based on BIM, indoor positioning and RFID, and a medium, and relates to the technical field of full life cycle asset management, and the method comprises the steps: planning various asset layouts layer by layer in a BIM model through employing a BIM modeling technology; binding the RFID tag of the asset with a virtual RFID tag recorded in the BIM model; indoor positioning continuously tracks the asset position and updates the asset position to an asset management system in real time; providing an instant asset list report, and importing and exporting an asset detail list and information; and adjusting asset positions according to requirements, automatically recording allocation information, forming allocation management, and initiating an asset scrapping process and updating information in the BIM model when the assets meet scrapping conditions. According to the invention, the efficiency and accuracy of asset management are improved, the full-life-cycle management of asset management is realized, and a more efficient, accurate and automatic solution is provided for asset management from modeling and arrangement of assets to real-time tracking and identification.

Description

Technical Field

[0001] The present invention relates to the technical field of full life cycle asset management, and in particular to asset management methods, systems, equipment and media based on BIM, indoor positioning and RFID. Background Art

[0002] BIM is a digital modeling technology that can describe the properties and location information of each asset in a building through a three-dimensional model. RFID is a sensor technology that can read the information in the tag attached to the object without touching the object. Based on the principles of the above two technologies, an RFID tag can be added to each asset. The earliest method used was to paste a QR code and associate it with the BIM model. After the asset is purchased, the RFID tag with the printed QR code is attached to the asset, and its relevant information is read and recorded in the database. When the asset is used, it can be continuously monitored and recorded through indoor positioning to ensure that it is always under control throughout its entire use cycle.

[0003] The present invention discloses a method based on the combination of BIM and UHF RFID technology, which can record relevant information during asset purchase, use, transfer and scrapping through indoor positioning, realize asset use tracking throughout the life cycle, and thus improve asset utilization. The technical problems solved are as follows:

[0004] Real-time asset tracking: asset tracking is difficult. In large and complex building environments, traditional manual asset tracking management methods are inefficient and prone to errors. The combination of BIM, indoor positioning and RFID technology can track asset locations in real time and accurately, solving the problem of widely distributed assets and difficulty in quickly locating them. Through indoor positioning and RFID technology, the location of assets can be tracked in real time, thereby improving asset visibility and security.

[0005] Asset management optimization: Low asset utilization, without effective data analysis support, makes it difficult to reasonably arrange and deploy assets, resulting in resource waste. BIM and location data analysis can reveal asset usage patterns, help optimize resource allocation, and improve asset utilization. Using BIM technology, asset information, including maintenance records, specifications, and locations, can be better managed, thereby optimizing the asset management process.

[0006] Reduce asset loss: Security and loss prevention, asset loss or theft is a common problem for enterprises. The combination of RFID and indoor positioning technology can monitor asset dynamics in real time, and combined with the access control system to achieve security control, effectively reducing the risk of asset loss. Through real-time tracking and unique identification, the risk of asset loss or theft can be reduced.

[0007] Improve efficiency: Asset inventory is inefficient. In the past, regular asset inventory that relied on manual work was labor-intensive, time-consuming, and error-prone. This technology greatly improves inventory efficiency and accuracy through automated inventory methods, especially RFID's large-scale rapid scanning capabilities. Automated data collection and management processes can improve the efficiency of asset management and reduce manual errors and time waste.

[0008] Accurate asset positioning: Indoor positioning technology can help ensure that assets are accurately located, improving the accuracy of asset search and management.

[0009] In summary, the asset management full life cycle management technology based on BIM, indoor positioning and RFID has broad application prospects. This technology can help organizations better manage and utilize assets, improve the efficiency of asset management, the safety of storage during use, and the accuracy of positioning, identification and tracking.

[0010] This technology effectively solves problems such as efficiency, accuracy, security and decision support in asset management through digital and intelligent means. It is a key technical solution to cope with the complexity of modern asset management. Summary of the invention

[0011] In view of the above-mentioned problems, the present invention is proposed.

[0012] Therefore, the problem to be solved by the present invention is: how to solve the problem that the existing method of manually tracking asset management is inefficient and prone to errors.

[0013] To solve the above technical problems, the present invention provides the following technical solutions: an asset management method based on BIM, indoor positioning and RFID, including: in the design and planning stage, building a BIM model; in the asset procurement and deployment stage, asset procurement is carried out according to the BIM model, and the assets are deployed in place; in the use and maintenance stage, indoor positioning continuously tracks the asset location and updates it to the asset management system in real time; in the asset inventory and audit stage, the assets in a certain area are quickly and automatically counted using an RFID reader; in the asset allocation and scrapping stage, allocation management and scrapping are carried out; the design and planning stage includes: using BIM modeling technology to plan the layout of various types of assets layer by layer in the BIM model, and for each preset asset Assign virtual RFID tags and record them in the BIM model, build an asset database, record asset lists and detailed information; according to asset requirements, conduct preliminary layout design, space utilization analysis, process optimization, simulation and evaluation for each floor, and finally confirm the asset layout; the space utilization analysis includes using the safety distance assessment data between devices to perform space utilization analysis, and determine the specific safety distance required for maintenance and normal use of each asset; if the safety distance assessment data between devices is greater than or equal to the safety distance assessment threshold, the safety distance between assets and between assets and building structures meets the requirements and the space utilization is reasonable; if the safety distance assessment data between devices is less than the safety distance assessment threshold, the safety distance is insufficient and the layout is readjusted.

[0014] As a preferred solution of the asset management method based on BIM, indoor positioning and RFID described in the present invention, the preliminary layout design includes quantitatively demonstrating the spatial utilization efficiency of the asset layout plan through spatial efficiency evaluation; if the spatial efficiency is lower than the spatial efficiency target value, the space utilization rate is not high and the layout needs to be re-optimized; the process optimization includes quantifying the functional association and physical distance between assets through functional proximity data.

[0015] As a preferred solution of the asset management method based on BIM, indoor positioning and RFID described in the present invention, wherein: the actual effect of the asset layout is verified by a simulation tool; the final confirmation of the asset layout includes a final evaluation based on the asset access efficiency data; the assets include furniture and equipment; the asset database includes recording the asset procurement process, recording the asset use process, recording the asset list and detailed information, and recording the asset function process.

[0016] As a preferred solution of the asset management method based on BIM, indoor positioning and RFID described in the present invention, the asset deployment includes: generating a demand list for procurement according to the asset layout information recorded in the BIM model to purchase assets, attaching or embedding RFID tags in physical assets, deploying assets according to the BIM asset layout plan, entering the RFID tag information into the asset management system by reading it, and binding the asset's RFID tag with the virtual RFID tag recorded in the BIM model; inputting or scanning the ID of the physical RFID tag in the BIM model, associating the ID of the physical RFID tag with the virtual RFID tag ID of the asset in the corresponding asset layout in the BIM model, and performing system testing and functional testing to confirm. After the association is correct, the binding information is saved and backed up; the system test includes if the physical RFID and virtual RFID tag information of all assets has been entered into the system, checking whether the physical tag and virtual tag of each asset match, evaluating the consistency of the asset tag, and obtaining an overall consistency score, and evaluating the overall accuracy of the tag binding based on the consistency score. If the consistency score is lower than the asset tag consistency score threshold, it is necessary to check and correct the mismatched tags. For mismatched assets, a detailed analysis is performed to determine the cause of the mismatch. After the problem is corrected, the consistency score is recalculated until the consistency score threshold is reached, and the consistency score is used as part of regular monitoring; the functional test includes testing whether the asset management system can accurately track and manage assets based on RFID tags.

[0017] As a preferred solution of the asset management method based on BIM, indoor positioning and RFID described in the present invention, wherein: the indoor positioning continuously tracks the asset location, including, the indoor positioning continuously tracks the asset location, and updates it to the asset management system in real time. The asset management system automatically sends maintenance reminders according to the asset usage and maintenance cycle. After the maintenance is completed, the RFID is read by a handheld device or the maintenance record is updated in the background to the asset information and asset database corresponding to the BIM model; at the same time, signals from Wi-Fi and UWB devices are received, Wi-Fi provides preliminary positioning information, and UWB provides distance measurement; when the asset enters the reading range of the RFID receiver, the RFID tag is activated and sends an identification code to the receiver. As the asset moves in the room, the asset management system receives and processes signals from Wi-Fi and UWB devices in real time, and continuously updates the location information of the asset.

[0018] As a preferred solution of the asset management method based on BIM, indoor positioning and RFID described in the present invention, the automatic inventory includes: automatically comparing data with the BIM model, providing an instant asset inventory report, and importing and exporting asset detail lists and information; for the RFID reader bound to the room, when the asset is within the effective range of the RFID reader, the reader automatically identifies the RFID tag on the asset and records the unique identification code and other relevant information of the tag; the comparison includes the asset information read by the RFID reader being uploaded to the asset management system in real time, comparing the actual inventory data with the asset layout of the BIM model, identifying missing, redundant or misplaced assets through comparison, providing an instant asset inventory report, and importing and exporting asset detail lists and information.

[0019] As a preferred solution of the asset management method based on BIM, indoor positioning and RFID described in the present invention, the allocation management includes: adjusting the asset position according to demand, automatically recording the allocation information, forming the allocation management, when the asset reaches the scrapping condition, initiating the asset scrapping process, verifying and approving, synchronously updating the detailed information of the corresponding asset in the asset database, and updating the information in the BIM model; re-planning the asset layout in the BIM model according to demand, adjusting the asset position, and forming the allocation management; the scrapping condition includes calculating the scrapping assessment data in combination with the actual service life, the number of repairs in the most recent year, and the maintenance cost in the most recent year; setting the asset scrapping threshold, if the scrapping assessment data is less than the asset scrapping threshold, the asset does not reach the scrapping condition, and the asset is not scrapped; if the scrapping assessment data is greater than or equal to the asset scrapping threshold, the asset reaches the scrapping condition, initiating the asset scrapping process, verifying and approving, synchronously updating the detailed information of the corresponding asset in the asset database, and updating the information in the BIM model.

[0020] Another object of the present invention is to provide a system of asset management methods based on BIM, indoor positioning and RFID, which can solve the asset management problems based on BIM, indoor positioning and RFID by constructing an asset management system.

[0021] To solve the above technical problems, the present invention provides the following technical solutions: an asset management system based on BIM, indoor positioning and RFID, including: a design and planning module, which is used to use BIM modeling technology in the design and planning stage to plan the layout of various assets layer by layer in the BIM model, assign a virtual RFID tag to each preset asset and record it in the BIM model, build an asset database, and record the asset list and detailed information; an asset procurement and deployment module, which is used to generate a demand list to be purchased according to the asset layout information recorded in the BIM model during the asset procurement and deployment stage, to purchase assets, to affix or embed RFID tags to physical assets, to deploy assets in place according to the BIM asset layout plan, to read the RFID tag information and enter it into the asset management system, and to bind the asset's RFID tag to the virtual RFID tag recorded in the BIM model; an asset use and maintenance module, which is used to During the maintenance phase, indoor positioning continuously tracks the location of assets and updates them to the asset management system in real time. The asset management system automatically sends maintenance reminders based on asset usage and maintenance cycles. After maintenance is completed, the RFID is read by a handheld device or the maintenance record is updated in the background to the asset information and asset database corresponding to the BIM model; the asset inventory and audit module is used to use an RFID reader to quickly and automatically inventory assets in a certain area during the asset inventory and audit phase. The data is automatically compared with the BIM model to provide an instant asset list report and import and export asset detail lists and information; the asset transfer and scrapping module is used to adjust the asset location according to needs during the asset transfer and scrapping phase, automatically record transfer information, and form transfer management. When the asset reaches the scrapping condition, the asset scrapping process is initiated for verification and approval, and the detailed information of the corresponding asset in the asset database is updated simultaneously, and the information in the BIM model is updated.

[0022] A computer device includes a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the asset management method based on BIM, indoor positioning and RFID are implemented as described above.

[0023] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the asset management method based on BIM, indoor positioning and RFID as described above.

[0024] The beneficial effects of the present invention are as follows: the asset management method based on BIM, indoor positioning and RFID provided by the present invention not only improves the efficiency and accuracy of asset management, but also brings long-term cost savings and risk control benefits to enterprises, which is an important trend in modern asset management. By using the digital model of building assets, the indoor positioning system is used to track assets in the building, and the RFID tags are used for identification and tracking purposes, the full life cycle management of asset management is realized, from asset modeling, layout to real-time tracking and identification, which can bring more efficient, accurate and automated solutions for asset management. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0026] Figure 1 A flowchart of an asset management method based on BIM, indoor positioning and RFID is provided for the first embodiment of the present invention.

[0027] Figure 2 A database and model design planning diagram of an asset management method based on BIM, indoor positioning and RFID is provided for the first embodiment of the present invention.

[0028] Figure 3 An asset procurement deployment diagram of an asset management method based on BIM, indoor positioning and RFID provided in the first embodiment of the present invention.

[0029] Figure 4 An asset usage management diagram of an asset management method based on BIM, indoor positioning and RFID provided in the first embodiment of the present invention.

[0030] Figure 5 A structural diagram of an asset management system based on BIM, indoor positioning and RFID provided for the second embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Example 1

[0034] Reference Figure 1~Figure 4 , which is the first embodiment of the present invention, provides an asset management method based on BIM, indoor positioning and RFID, including: in the design and planning stage, building a BIM model; in the asset procurement and deployment stage, purchasing assets according to the BIM model and deploying the assets in place; in the use and maintenance stage, indoor positioning continuously tracks the asset location and updates it to the asset management system in real time; in the asset inventory and audit stage, using an RFID reader to quickly and automatically inventory the assets in a certain area; in the asset allocation and scrapping stage, allocation management and scrapping are performed.

[0035] Application of BIM technology: Design and planning stage: BIM provides a three-dimensional digital platform for asset management, which enables pre-layout and simulation of assets during the design and construction stages of buildings. This not only optimizes space utilization, but also ensures that all assets are accurately planned in the early stages of construction, reducing the cost and time of subsequent adjustments.

[0036] Asset entry and information integration: In the BIM model, each asset can be treated as a separate object with its detailed information such as model, specifications, supplier information, maintenance records, etc., forming a comprehensive BIM database containing physical characteristics and management information.

[0037] The role of indoor positioning technology: Real-time tracking of asset locations: Combined with indoor positioning technologies such as Wi-Fi and UWB (Ultra-Wideband), it is possible to accurately locate the location of each asset inside a building. This is particularly important for large and complex facilities such as hospitals, schools, and office buildings, which can quickly find and dispatch assets and improve response efficiency.

[0038] Integration of RFID technology: Automatic identification and inventory: RFID tags are attached to each asset, and the RFID reader can quickly scan and identify the asset without direct line of sight, enabling batch automated inventory, greatly reducing manual errors and inventory time.

[0039] Access control and security monitoring: Combined with access control systems, RFID can also be used to monitor the entry and exit of assets, prevent unauthorized movement or theft, and enhance asset security.

[0040] like Figure 1As shown, the asset model BIM information center database and asset database details list. The information center database receives and outputs data on procurement and deployment during the asset procurement and deployment phase, collection and return during the use and maintenance phase, inventory and audit during the asset inventory and audit phase, and allocation, transfer and asset scrapping during the asset allocation and scrapping phase; procurement, deployment, collection, return, allocation, transfer and asset scrapping data updates asset location information, locates assets based on real-time positioning tracking and asset location information, and transmits the asset positioning and ultra-high frequency RFID tags to the database center and compares the positioning information.

[0041] S100. Build a BIM model during the design and planning phase.

[0042] During the design and planning phase, BIM modeling technology is used to plan the layout of various types of assets layer by layer in the BIM model, assign a virtual RFID tag to each preset asset and record it in the BIM model, build an asset database, and record the asset list and detailed information.

[0043] Specifically, in the design and planning phase, BIM modeling technology needs to be used to plan the layout of various assets in the BIM model, including furniture, equipment, etc. At the same time, virtual RFID tags need to be assigned to each preset asset and recorded in the BIM model. Build an asset database to record asset lists and detailed information, as well as process records of basic functions.

[0044] It should be noted that before starting BIM modeling, all relevant building and asset data must be collected, including the building's structure, size, existing facility layout, etc. At the same time, the specific needs of asset management, such as asset type, intended use, safety requirements, etc., must be understood.

[0045] Further, a 3D model of the building is created based on the collected data using BIM software (such as Autodesk Revit or Graphisoft ArchiCAD). This model will include all building elements (walls, floors, ceilings, etc.) and mechanical, electrical, and plumbing systems (MEP).

[0046] According to asset requirements, preliminary layout design, space utilization analysis, process optimization, simulation and evaluation are carried out for each floor, and finally the asset layout is confirmed. Figure 2 As shown, the database and model design planning stage includes BIM modeling 120 and asset database 110. BIM modeling 120 creates a BIM database to record asset model information including size 121, quality 122, virtual RFID tag 123 and brand 124; the asset database 110 includes recording asset procurement process 111, recording asset use (receipt, return, transfer, inventory, scrapping) process 112 and recording asset list detailed information 113.

[0047] Further, asset layout planning is performed in the BIM model according to project requirements. This includes determining the location, space utilization and safe spacing of assets. Use BIM software tools and features, such as "room books" or "design automation", to help place and adjust assets.

[0048] Going a step further, the spatial efficiency and safety distance analysis is performed using formulas and BIM models. The Space Efficiency Index (SEI) is calculated to evaluate the spatial efficiency of the asset layout plan. At the same time, it is ensured that the safety distance between each asset and between the asset and the building structure meets or exceeds the standard.

[0049] The preliminary layout design includes a space efficiency assessment to quantitatively demonstrate the space utilization efficiency of the asset layout plan; if the space efficiency is lower than the space efficiency target value, the space utilization rate is not high and the layout needs to be re-optimized.

[0050] In a preferred embodiment, the preliminary layout design is evaluated through a space efficiency index to quantitatively demonstrate the space utilization efficiency of the asset layout plan, ensuring the reasonable distribution of assets and the maximum utilization of space, which is expressed as: , in, is the space efficiency index, is the total usable area, the total area occupied by all assets planned in the BIM model, is the total usable area, the total area of ​​the entire facility in the BIM model.

[0051] like Lower than The target value is lower than the space utilization rate, and the layout needs to be re-optimized. The SEI target value should be determined according to industry standards and internal enterprise requirements.

[0052] Use the safety distance assessment data between devices to perform space utilization analysis, and determine the specific safety distance required for maintenance and normal use of each asset; if the safety distance assessment data between devices is greater than or equal to the safety distance assessment threshold, the safety distance between assets and between assets and building structures meets the requirements and space utilization is reasonable; if the safety distance assessment data between devices is less than the safety distance assessment threshold, the safety distance is insufficient and the layout needs to be readjusted.

[0053] In a preferred embodiment, the space utilization analysis uses the safety distance compliance to perform space utilization analysis, and determines the specific safety distance required for maintenance and normal use of each asset to ensure that the asset layout meets the safety standards and prevent safety problems caused by too close layout between assets or between assets and building structures, which is expressed as: , in, To ensure safe distance compliance, The actual safe distance for each asset, Specific safety distances required for maintenance and normal use of each asset; like If it is greater than or equal to 1, the safety distance between assets and between assets and building structures meets the requirements, and the space utilization is reasonable. If it is less than 1, the safety distance is insufficient and the layout needs to be readjusted. The safety distance standard can be determined based on relevant safety specifications and standards (such as national or industry safety standards).

[0054] Quantify the functional connections and physical distances between assets with functional proximity data.

[0055] In a preferred embodiment, process optimization quantifies the functional association and physical distance between assets through the functional proximity index, which helps optimize the asset layout and improve the efficiency of the workflow, expressed as: , in, is the total assets, is the functional proximity index, For assets and assets The functional relevance weights are determined based on functional complementarity, workflow requirements, and physical dependencies. For assets and assets Distance in the model.

[0056] The functional proximity index exceeds the required functional proximity index threshold as much as possible to ensure the proximity between functionally related assets. If it is lower, it means that the distance between functionally related assets is far and the layout needs to be optimized. The functional relevance weight and distance should be determined according to actual business needs and operation processes.

[0057] Simulation and evaluation verify the actual effect of asset layout through simulation tools.

[0058] In a preferred embodiment, simulation and evaluation verifies the actual effect of asset layout through the simulation tool Autodesk Navisworks, observes potential problems in operation and makes adjustments. If the simulation results show that the operation process is smooth without bottlenecks or conflicts, the asset layout is reasonable, and the layout is adjusted according to the simulation results until the operation is smooth.

[0059] Final confirmation of asset layout is finalized based on asset access efficiency data.

[0060] In a preferred embodiment, the final confirmation of the asset layout is finally evaluated according to the asset access efficiency index, which is expressed as: , in, is the asset access efficiency index, For assets Frequency of use, For assets The distance to the nearest personnel flow point (such as entrance, exit, office, etc.).

[0061] Asset Access Efficiency Index (AAI) is higher than The threshold ensures the accessibility of high-frequency assets and ensures that the layout plan has been reviewed and confirmed to meet actual operational needs. Threshold, indicating that high-frequency assets are inconvenient to access and need to be optimized. Frequency of use of high-frequency assets and distance It should be determined based on actual usage.

[0062] The asset database records the asset procurement process, the asset usage process, the asset list and detailed information, and the process of basic asset functions.

[0063] Furthermore, after all analysis and simulations are completed, the asset layout is finally confirmed. The BIM model is updated to record the asset details and layout adjustments. At the same time, an asset database is created, including a detailed list of all assets and related information.

[0064] S200. During the asset procurement and deployment phase, assets are procured based on the BIM model and deployed in place.

[0065] During the asset procurement and deployment phase, a procurement requirement list is generated based on the asset layout information recorded in the BIM model to carry out asset procurement. RFID tags are affixed to or built into physical assets, and assets are deployed in place according to the BIM asset layout plan. The RFID tag information is read and entered into the asset management system, and the asset's RFID tag is bound to the virtual RFID tag recorded in the BIM model.

[0066] Based on the asset layout planned in the BIM model in the S100 phase and the virtual RFID tag information of each asset, a detailed requirements list is generated. This list will include detailed information such as the type, quantity, specifications, and procurement cost of the required assets.

[0067] Further, asset procurement is carried out according to the requirements list. Market research is conducted to select suitable suppliers and complete the procurement according to the budget and quality requirements. It is ensured that the purchased assets meet the specifications and standards preset in the BIM model.

[0068] When the assets arrive on site, a detailed receiving and inspection process is carried out. Verification is carried out against the purchase list and the technical specifications of the assets to ensure that all assets meet the predetermined quality and specification requirements.

[0069] Furthermore, RFID tags are attached or built into physical assets. Each asset's RFID tag should correspond to its assigned virtual RFID tag information in the BIM model. The tag should contain the asset's unique identification code and other relevant information, such as location, maintenance cycle, etc.

[0070] Going a step further, assets are deployed in place according to the BIM asset layout plan. Ensure that each asset is placed according to the specific location in the BIM model, while taking into account safety distance and operational convenience.

[0071] Specifically, Figure 3 As shown, the asset procurement and deployment phase includes exporting asset model information in the BIM database 210, conducting asset procurement 220, entering the asset database, configuring RFID tags 221, and binding RFD tags 222 to the corresponding BIM database.

[0072] Enter or scan the ID of the physical RFID tag in the BIM model, associate the ID of the physical RFID tag with the virtual RFID tag ID of the asset in the corresponding asset layout in the BIM model, perform system tests and functional tests to confirm that the association is correct, then save the binding information and back it up.

[0073] System testing: If the physical RFID and virtual RFID tag information of all assets has been entered into the system, check whether the physical tag and virtual tag match for each asset, evaluate the consistency of the asset tag, and obtain an overall consistency score. Evaluate the overall accuracy of tag binding based on the consistency score. If the consistency score is lower than the asset tag consistency score threshold, check and correct the mismatched tags. For mismatched assets, conduct a detailed analysis to determine the cause of the mismatch. After correcting the problem, recalculate the consistency score until the consistency score threshold is reached. Use the consistency score as part of regular monitoring to ensure that newly introduced asset tags can also maintain a high consistency level.

[0074] In a preferred embodiment, the asset tag consistency score ATCS is expressed as: , in, Score asset tag consistency, Executes a function for an asset. If the asset The value is 1 if the physical RFID tag of the asset matches the virtual RFID tag. If the physical RFID tag does not match the virtual RFID tag, it is 0.

[0075] Functional testing: Test whether the asset management system can accurately track and manage assets based on RFID tags. Determine the list of functions that need to be tested, including asset tag binding, location tracking, asset status update, maintenance reminders, etc. Generate or prepare test data, including asset information with different states and conditions. For each function, design and execute specific test cases, for example, verify whether the system can accurately identify and display the location of different assets, record the system's response and behavior, and check whether it is consistent with expectations. For any problems found, record detailed information, analyze, find out the causes, and record possible solutions.

[0076] In a preferred embodiment, the functional coverage ratio FCR is used to evaluate the functional test coverage of the asset management system. The higher the FCR value, the more complete the system functional coverage, the higher the system stability and reliability, which is expressed as: , in, is the functional coverage, is the number of test cases successfully executed, is the total number of test cases.

[0077] Furthermore, after all tests are completed, the asset deployment is finally confirmed. The BIM model is updated to reflect every detail of the actual deployment, and the asset database is updated synchronously. Detailed deployment documents are produced, including asset lists, deployment locations, RFID tag information, and system test results.

[0078] S300, during the use and maintenance phase, indoor positioning continuously tracks the location of assets and updates them to the asset management system in real time.

[0079] During the use and maintenance stage, indoor positioning continuously tracks the location of assets and updates them to the asset management system in real time. The asset management system automatically sends maintenance reminders based on asset usage and maintenance cycles. After maintenance is completed, the RFID is read by a handheld device or the maintenance record is updated in the background to the asset information and asset database corresponding to the BIM model.

[0080] Furthermore, select appropriate locations to install Wi-Fi access points to cover the entire target area. Wi-Fi access points are mainly used to provide basic positioning information and network coverage. Deploy UWB anchor points at key locations in the room. UWB anchor points should be evenly distributed to ensure that no matter where the asset is located, it can be covered by at least three anchor points for accurate distance measurement, and deploy RFID readers in the room and bind to the room.

[0081] Furthermore, ensure that the RFID readers in all rooms are working properly and are bound to the rooms to ensure that the asset location can be tracked in real time. Check and update the RFID tag information to ensure that the data in the asset management system is synchronized with the actual situation, including location, status and maintenance records.

[0082] Signals from Wi-Fi and UWB devices are received simultaneously, with Wi-Fi providing preliminary positioning information and UWB providing more precise distance measurements.

[0083] Ensure that the data collected from Wi-Fi and UWB are synchronized in time so that the information can be accurately fused and processed. Use filtering algorithms (such as Kalman filters) to process Wi-Fi and UWB data to remove noise and possible errors and improve data quality.

[0084] When an asset enters the reading range of an RFID receiver, the RFID tag is activated and sends an identification code to the receiver. As the asset moves around the room, the asset management system receives and processes signals from Wi-Fi and UWB devices in real time, continuously updating the asset's location information.

[0085] Combining Wi-Fi RSSI and UWB ToF data, multi-sensor data fusion technology is used to estimate the location. This fusion is usually weighted, in which UWB data is usually given a higher weight due to its high accuracy. Triangulation using Wi-Fi data provides an estimate of the approximate location, and then UWB data is used for trilateration to fine-tune and confirm this location.

[0086] Furthermore, the maintenance cycle of each asset is set according to the asset usage and manufacturer recommendations. The asset management system automatically sends maintenance reminders to relevant departments or personnel according to the set maintenance cycle. After the maintenance is completed, the RFID is read using a handheld device or the maintenance record is updated in the background to the asset information and asset database corresponding to the BIM model.

[0087] S400. During the asset inventory and audit phase, use an RFID reader to perform a quick and automatic inventory of assets in a certain area.

[0088] During the asset inventory and audit phase, RFID readers are used to quickly and automatically inventory assets in a certain area. The data is automatically compared with the BIM model, providing instant asset inventory reports and importing and exporting asset detail lists and information.

[0089] Specifically, develop a regular inventory plan based on the type and importance of the assets. The plan should include the frequency of the inventory, responsible personnel, and required tools. Check the functionality and coverage area of ​​all RFID readers to ensure that they can cover all key areas and are in good working condition.

[0090] Furthermore, when the inventory plan is executed, the RFID reader in the room is activated to automatically scan the RFID tags of all assets in the area. The RFID reader automatically identifies the RFID tag on the asset and records the unique identification code and other relevant information of the tag. The read asset information is instantly uploaded to the asset management system, and the system will automatically compare the actual inventory data with the asset layout and asset database in the BIM model.

[0091] Automatic inventory includes an RFID reader bound to the room. When an asset is within the effective range of the RFID reader, the reader automatically identifies the RFID tag on the asset and records the tag's unique identification code and other relevant information.

[0092] The asset information read by the RFID reader is uploaded to the asset management system in real time, and the actual inventory data is compared with the asset layout of the BIM model. Through the comparison, missing, redundant or mislocated assets are identified, and an instant asset inventory report is provided, and asset detail lists and information are imported and exported.

[0093] Specifically, the asset management system compares the actual inventory data with the preset asset data in the BIM model to identify missing, redundant or misplaced assets. For any anomalies found, the system will generate a detailed report and notify the relevant management personnel for further verification or adjustment. Based on the anomaly report, necessary asset adjustments are made, such as repositioning, repair or replacement, and the BIM model and asset database are updated to reflect these changes.

[0094] Specifically, after the inventory is completed, a detailed asset inventory report is generated, including asset status, location, and any issues that require attention. Based on the inventory results and historical data, analysis is performed to identify deficiencies in the management process and develop improvement measures to optimize future asset management and inventory activities.

[0095] Finally, regularly back up the asset database and inventory data to ensure data security and availability in disaster recovery situations. Implement necessary data security measures to prevent unauthorized access or data leakage.

[0096] S500. During the asset transfer and scrapping stage, transfer management and scrapping are performed.

[0097] During the asset allocation and scrapping stage, the asset position is adjusted according to demand, and the allocation information is automatically recorded to form allocation management. When the asset reaches the scrapping conditions, the asset scrapping process is initiated for verification and approval, and the detailed information of the corresponding asset in the asset database is updated synchronously, and the information in the BIM model is updated.

[0098] Further, based on business development and internal needs, evaluate the assets that need to be transferred. Involves expanding, reducing or optimizing the use of space and resources. Design a detailed asset transfer plan, including the target location, a list of transferred assets and a timetable.

[0099] Asset usage management Figure 4 As shown, asset use management includes asset collection and return S300, asset inventory audit S400, asset transfer 510 and asset scrapping 520. Asset collection and return S300 requires filling in an application form 310, including the applicant's name 311, storage location 312, etc., asset information 320 synchronously updates asset user information 321, records asset collection and return process 322, and synchronously updates BIM model corresponding information 323; asset inventory audit S400 requires filling in an inventory form 410, including information such as the inventory person 411 and the scope of the inventory 412, etc., the RFID reader automatically reads 420, compares the read data with the BIM model data 421, and generates an asset List report 422; asset allocation and transfer 510 requires filling in the allocation form 511 and asset information 512. The allocation form 511 includes the storage location 511a after allocation, the user custodian 511b and other information. The asset information 512 includes the synchronous update of the asset user, storage location and other information 512a, recording the asset allocation and transfer process information 512b, and synchronously updating the BIM model corresponding information 512c; asset scrapping requires 520 to fill in the scrapping form 521, including the scrapping reason 521a, scrapping time 521b and other information, and to conduct scrapping approval 522, verify the asset status 522a, and synchronously update the asset database 522b and the BIM model corresponding asset information 522c.

[0100] According to the allocation requirements, re-plan the asset layout in the BIM model, adjust the asset position, and form allocation management.

[0101] Further, update the asset's scheduled new location in the BIM model to ensure that the allocation plan meets space planning and safety requirements. Physically move the asset to the new location. Use the RFID system to update the asset location information in real time during the process. Update the asset's new location and status in the asset management system and BIM model to ensure that all records accurately reflect the current status of the asset.

[0102] Evaluate whether the asset meets the scrapping conditions based on its actual usage, maintenance history and performance data. Use a formula to calculate the scrapping assessment index (DS) to determine whether the asset has reached the scrapping threshold. For assets that meet the scrapping conditions, start the scrapping approval process. This includes submitting scrapping proposals, obtaining necessary approvals and recording all relevant decisions. Safely dispose of scrapped assets and ensure compliance with all environmental and regulatory requirements. This may involve recycling parts, destroying sensitive data, etc.

[0103] The scrapping conditions include calculating the scrapping assessment data based on the actual service life, the number of repairs in the most recent year, and the repair costs in the most recent year, and setting an asset scrapping threshold. If the scrapping assessment data is less than the asset scrapping threshold, the asset does not meet the scrapping conditions and the asset will not be scrapped. If the scrapping assessment data is greater than or equal to the asset scrapping threshold, the asset meets the scrapping conditions, the asset scrapping process is initiated, verification and approval are carried out, and the detailed information of the corresponding asset in the asset database is updated synchronously, and the information in the BIM model is updated.

[0104] In a preferred embodiment, the scrapping condition is combined with the actual service life, the number of repairs in the last year, and the repair cost in the last year to calculate the scrapping assessment index, which is expressed as: , in, is the scrap assessment index, is the actual useful life, is the expected useful life, The number of repairs in the most recent year. is the expected annual maintenance frequency under normal conditions, is the maintenance cost in the most recent year, The original cost of the asset.

[0105] Set the asset retirement threshold. If the asset is less than the asset scrapping threshold, the asset does not meet the scrapping conditions and will not be scrapped. If the value is greater than or equal to the asset scrapping threshold, the asset reaches the scrapping condition, the asset scrapping process is initiated, verification and approval are carried out, the detailed information of the corresponding asset in the asset database is updated synchronously, and the information in the BIM model is updated.

[0106] Furthermore, ensure that asset information in the BIM model and asset management system reflects the latest transfer and retirement status. Ensure assets are accurately tracked and managed. Record details of all transfer and retirement activities, including dates, assets involved and any related financial impacts.

[0107] Throughout the asset life cycle, data analysis and decision support can be performed. The asset's BIM model, indoor positioning, and RFID systems can continuously collect asset usage data, analyze the data, generate reports on usage efficiency and maintenance costs, and finally provide decision support for asset management strategies and budget allocations based on the analysis results. This process covers the entire cycle from asset planning to final retirement, and each step reflects the collaborative operation of BIM, indoor positioning, and RFID technologies to achieve efficient full life cycle asset management.

[0108] Full life cycle management optimization: Every link from asset procurement, installation, use, maintenance to scrapping can be fully monitored and managed to ensure the maximization of asset value. The integrated characteristics of BIM technology make cross-stage information transmission smooth, improving the continuity and integrity of asset management.

[0109] Real-time tracking and positioning: Using indoor positioning technology, an RFID receiver is placed in each room. The RFID receiver is bound to the room, and the real-time location of the asset can be quickly determined. This is crucial for large facilities (such as hospitals, warehouses, and factories) and can quickly respond to asset needs and improve asset utilization.

[0110] Automation and intelligence: RFID technology makes it possible to automate asset inventory and tracking, greatly reducing manual errors and inventory time, and improving work efficiency. Automated data collection reduces human resource investment, allowing managers to focus on higher-value tasks.

[0111] Accurate inventory control: With a real-time updated asset database, companies can accurately grasp inventory status, avoid over-purchasing or asset shortages, effectively control costs and optimize inventory levels.

[0112] Maintenance and preventive management: The system can automatically remind asset maintenance or overhaul. Preventive maintenance reduces sudden failures, extends asset life, and reduces maintenance costs.

[0113] Decision support: The integrated data platform provides management with a rich data analysis foundation, helping to make more accurate investment decisions, resource allocation and future planning.

[0114] Enhanced security: The uniqueness of RFID tags helps prevent asset theft or misuse. At the same time, indoor positioning technology can quickly locate lost assets, improving asset security.

[0115] Visual management: BIM's 3D visualization function makes asset management more intuitive, easier to understand and communicate, especially in complex building environments, where it can clearly display asset distribution and assist in decision-making.

[0116] Compliance and Audit Support: The system’s transparency and traceability help meet regulatory requirements, simplify the audit process, and provide fast and accurate asset reporting.

[0117] Example 2

[0118] Reference Figure 5 , which is the second embodiment of the present invention. Different from the previous embodiment, it provides asset management based on BIM, indoor positioning and RFID, including: a design planning module 100, an asset procurement and deployment module 200, an asset use and maintenance module 300, an asset inventory audit module 400 and an asset transfer and scrapping module 500.

[0119] The design planning module 100 is used to use BIM modeling technology in the design and planning stage to plan the layout of various assets layer by layer in the BIM model, assign a virtual RFID tag to each preset asset and record it in the BIM model, build an asset database, and record the asset list and detailed information.

[0120] Specifically, during the design and planning phase, continue to use BIM (Building Information Modeling) modeling technology to build a 3D model of the entire facility. This includes all building elements (walls, floors, ceilings, etc.) and mechanical, electrical, and plumbing systems (MEP). Plan the layout of various types of assets, such as furniture, office equipment, medical equipment, etc., layer by layer in the BIM model. Assign virtual RFID tags to each asset and record detailed asset information in the model, such as asset model, specifications, expected service life, etc.

[0121] Furthermore, an asset database is constructed, which will contain a detailed list of assets and detailed information of each asset derived from the BIM model. The asset information in the database should be consistent with the virtual RFID tag information in the BIM model to ensure that the data in the asset management system is accurate.

[0122] Use BIM models for intelligent planning of asset layout, and apply algorithms and tools to analyze and optimize space utilization, safety distances, and asset access efficiency.

[0123] Furthermore, it is necessary to ensure that the design planning module is closely integrated with other modules such as the asset procurement and deployment module, the asset use and maintenance module, and information flow is unimpeded. After the actual deployment, maintenance or transfer of assets, the BIM model and asset database should be updated in real time to reflect the latest status and location of all assets.

[0124] The asset procurement and deployment module 200 is used to generate a demand list for asset procurement according to the asset layout information recorded in the BIM model during the asset procurement and deployment stage, attach or embed RFID tags to physical assets, deploy assets in place according to the BIM asset layout plan, read the RFID tag information and enter it into the asset management system, and bind the asset's RFID tag to the virtual RFID tag recorded in the BIM model.

[0125] Specifically, according to the asset layout in the BIM model completed in the design planning module 100, a detailed purchase requirement list is automatically exported from the asset database. This list includes each detailed information of the required assets, such as type, quantity, specification, and preset virtual RFID tag information. The information in the list should ensure that it fully corresponds to the data in the BIM model, ensuring that the purchased assets can accurately match the pre-planned layout and configuration requirements.

[0126] Furthermore, RFID tags are attached or built into each physical asset. Ensure that the unique identification code of each tag corresponds to the virtual RFID tag information pre-assigned in the BIM model. By scanning the RFID tag, the physical tag information of the asset is entered into the asset management system and bound to the virtual RFID tag in the BIM model. Ensure the consistency of information between the virtual model and the actual physical asset.

[0127] Deploy assets one by one to their designated locations according to the asset layout plan in the BIM model. During the deployment process, use the BIM model for visual guidance to ensure that each asset is accurately placed. Use a mobile device or handheld RFID reader to verify the placement of assets and the accuracy of RFID tag binding to ensure that the physical location of all assets is exactly the same as recorded in the BIM model.

[0128] Conduct system-level tests, including RFID tag reading accuracy tests and asset management system data synchronization tests. Verify that the asset management system can accurately track and manage the status and location of each asset, while ensuring that the maintenance reminder and status update functions in the system are functioning properly.

[0129] Furthermore, after asset deployment is completed, the BIM model is updated to reflect the actual deployment details of each asset, and the asset database is updated simultaneously. Detailed deployment documents are produced, including asset lists, deployment locations, RFID tag information, and system test results, to provide a basis for subsequent maintenance and audits. Asset data and system configurations are backed up regularly to ensure data security and availability in disaster recovery situations.

[0130] The asset use and maintenance module 300 is used to continuously track the asset location through indoor positioning during the use and maintenance phase, and update it to the asset management system in real time. The asset management system automatically sends maintenance reminders based on the asset usage and maintenance cycle. After the maintenance is completed, the RFID is read by a handheld device or the maintenance record is updated in the background to the asset information and asset database corresponding to the BIM model.

[0131] Specifically, use and expand the indoor positioning technology set in the design and planning module 100, such as Wi-Fi and Ultra-Wideband (UWB) systems, to ensure that the asset location can be accurately tracked throughout the facility. Integrate the positioning system with the asset management system to update the asset location data in real time. Configure the system to receive signals from the positioning device and process the location information using multi-sensor data fusion technology.

[0132] Furthermore, the data read from the RFID tags attached to the assets can be used to continuously track the usage status and location changes of each asset. The system should be able to automatically update the asset status, such as in use, under maintenance or idle, and reflect it in the asset management system and BIM model.

[0133] The asset maintenance cycle and overhaul schedule are set based on the manufacturer's recommendations and historical usage data. The asset management system should automatically send reminders to the maintenance team based on the set maintenance cycle, using mobile apps or emails to notify relevant personnel.

[0134] After maintenance or overhaul is completed, the maintenance record is updated by reading the RFID through a handheld device or directly in the asset management system. The updated data should be synchronized to the asset information corresponding to the BIM model to maintain data consistency and accuracy.

[0135] The asset inventory audit module 400 is used to use an RFID reader to quickly and automatically inventory assets in a certain area during the asset inventory and audit stage, automatically compare the data with the BIM model, provide instant asset inventory reports, and import and export asset detail lists and information.

[0136] Specifically, we use the previously bound RFID technology to configure an automated inventory system. The system automatically identifies the asset tags passing through through RFID readers installed at key locations to achieve fast automated inventory. Ensure that the RFID tags of all assets are operating normally, and regularly test and calibrate the RFID system to ensure reading accuracy.

[0137] Furthermore, during the scheduled inventory cycle, the RFID reader is activated for automatic inventory. The reader will scan and record the RFID tag of the asset and automatically upload the data to the asset management system. The inventory data is automatically compared with the asset record in the BIM model, and the system checks the existence, location accuracy and status consistency of the asset.

[0138] The system automatically identifies any anomalies found during the inventory count, such as incorrect asset locations, missing or extra assets. For detected anomalies, a detailed anomaly report is generated to notify management for further verification or adjustments.

[0139] Provides a tool to generate asset inventory reports, including detailed information such as the current status, location, and usage of assets. Supports import and export of asset detail lists and information, facilitating data exchange with other financial or operational management systems.

[0140] The system records detailed logs of all inventory and audit activities, including date, operator, inventory results, etc., to ensure audit traceability. Set up an audit trail function to review historical inventory data and operation paths when necessary for compliance verification and internal audits.

[0141] The asset transfer and scrapping module 500 is used to adjust the asset position according to demand during the asset transfer and scrapping processing stage, automatically record the transfer information, and form transfer management. When the asset reaches the scrapping condition, it initiates the asset scrapping process, verifies and approves it, and simultaneously updates the detailed information of the corresponding asset in the asset database and updates the information in the BIM model.

[0142] Specifically, based on the data provided by the asset usage maintenance module and the asset inventory audit module, analyze the usage frequency, maintenance history and location information of each asset to determine the assets that need to be transferred. Design a transfer plan, including the target location of the assets, the scheduled schedule and the required resources, to ensure that the transfer operation does not affect daily operations.

[0143] Furthermore, the BIM model and asset management system are used to ensure that the asset location is updated during the transfer process. Before physically moving the asset, simulate the new layout of the asset in the BIM model to predict and resolve possible spatial or operational conflicts. Physically transfer the asset to the new location and use RFID technology to update the asset location information in real time to ensure that the data in the asset management system is consistent with the physical location.

[0144] Based on the maintenance records of the asset usage and maintenance module and the data of the asset inventory audit module, the condition and performance of the asset are evaluated to determine whether the scrap condition has been reached. The scrap assessment index (DS) is calculated using a formula to determine whether the asset should be scrapped based on parameters such as service life, maintenance frequency, and maintenance cost.

[0145] For assets that meet the retirement conditions, initiate the retirement approval process, including submitting retirement proposals, obtaining necessary approvals, and recording all relevant decisions. Safely dispose of retired assets, ensuring compliance with all environmental and regulatory requirements, which may involve recycling parts, destroying sensitive data, etc.

[0146] After an asset is transferred or scrapped, the relevant information in the asset database and BIM model is updated in a timely manner to reflect the latest status and location of the asset. Ensure the accuracy and consistency of all asset information in the system to facilitate future operations and decision-making.

[0147] Finally, regularly evaluate the efficiency and effectiveness of the asset transfer and retirement module, measure the module's performance by analyzing operational data and maintenance costs before and after the transfer, and generate detailed reports summarizing the achievements and learning points of the transfer and retirement activities.

[0148] Example 3

[0149] An embodiment of the present invention is different from the first two embodiments in that:

[0150] Specifically, the software integrates BIM tools for creating and editing asset layouts. The user interface (UI) allows users to assign virtual RFID tags to each asset and record this data in the asset database. Automatically generate a requirement list based on the BIM model asset layout, support the entry of RFID tag data and binding operations with the BIM model. Track asset location and status in real time, and provide accurate updates through the integrated indoor positioning system. Automatically send maintenance reminders at regular intervals. Automatically activate the RFID reader, scan and identify assets, compare data with the BIM model, and generate inventory reports. Support the formulation and execution of transfer plans, automatically update the BIM model and asset database, and initiate and manage the asset scrapping process.

[0151] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0152] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0153] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0154] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0155] Example 4

[0156] The fourth embodiment of the present invention is different from the first three embodiments in that it is used to verify and illustrate the technical effects adopted in the present invention in order to verify the real effects of the method.

[0157] The method of the present invention and the traditional method are used to simulate the same building at the same time.

[0158] In this embodiment, a modern office building with a total construction area of ​​6,000 square meters is selected as the experimental scene. The building has three floors and includes the following functional areas: office area, meeting area, public area, and storage area.

[0159] Each floor of the office area is about 1,400 square meters, with a total of 150 office stations and related equipment (such as office desks and chairs, computers, printers, filing cabinets, etc.). Each floor of the conference area is about 300 square meters, with a total of 8 conference rooms, each equipped with audio and video equipment, whiteboards and conference tables and chairs. The public area includes tea rooms, rest areas, etc., occupying about 300 square meters, and assets such as water dispensers, coffee machines, sofas, etc. The storage area is located on the first floor, which is used to store spare equipment and consumables, occupying about 600 square meters.

[0160] The total number of assets is 750, covering two categories: fixed assets and consumables, with an average unit price of RMB 5,000.

[0161] Traditional method group: Asset purchase and registration: After the asset is purchased, the asset information is manually recorded in paper or electronic forms, and a QR code label is attached to the asset. Asset allocation and positioning: Assets are manually allocated to each room based on paper or electronic forms, and the location information is recorded. Use and maintenance: The maintenance plan is manually recorded and reminded according to a fixed cycle, and the user reports after the failure occurs. Asset inventory: Manual inventory is conducted once a quarter, and the inventory method is to scan the QR code one by one and check the form records. Scrap processing: Based on the manually recorded asset service life and maintenance history, the management personnel manually judge and fill in the scrap approval form.

[0162] The method group of the present invention: Asset purchase and registration: Use the method of the present invention to automatically generate a purchase list based on the BIM model. After the asset is purchased, an RFID tag is affixed or built-in and bound to the BIM model. Asset allocation and positioning: According to the preset asset layout of the BIM model, assets are automatically deployed and location information is updated in real time, and continuous tracking is carried out through indoor positioning technology. Usage and maintenance: The system automatically sends maintenance reminders based on usage records and preset maintenance cycles, and automatically updates records through RFID scanning after maintenance is completed. Asset inventory: Use a fixed RFID reader to automatically scan and inventory every month, and the results are compared with the BIM model data in real time to generate a report. Scrapping: The system automatically triggers the scrapping process based on the set scrapping assessment conditions (such as service life and maintenance cost), and updates the BIM model and asset database.

[0163] This embodiment uses the traditional method and the method of the present invention to perform detection simultaneously, and the detection comparison results are shown in the following Table 1: Table 1 Comparison table between the traditional method and the method of the present invention project Method of the present invention Traditional methods Asset registration time 3 days (automatic registration) 15 days (manual entry) Asset allocation time 2 days (BIM automated layout) 10 days (manual allocation) Asset inventory cycle Monthly automatic inventory (takes 1 hour) Manual inventory every quarter (takes 3 days) Inventory accuracy 99.90% 90% Asset loss rate 0.50% 2% Scrap disposal cycle 2 hours (automated process) 3 days (manual process) Asset Utilization 95% 75% Decision support capabilities High (real-time data analysis) Low (no real-time analysis capabilities) Security High (real-time monitoring) Low (manually recorded) Total cost savings 25% reduction —

[0164] The method of the present invention achieves significant time savings in asset purchase registration, allocation, inventory and scrapping processing, especially in the inventory phase, where the monthly automated inventory only takes 1 hour, while the traditional method of manual inventory takes 3 days.

[0165] The inventory accuracy rate has increased from 90% of traditional methods to 99.90%, and the asset loss rate has dropped from 2% to 0.50%, significantly reducing the risk of asset management.

[0166] The method of the present invention provides strong support for asset management decisions through BIM models and real-time data analysis, while the transparency of automated records greatly improves audit and compliance capabilities.

[0167] Through the comparison of experimental data, it can be seen that the method of the present invention is significantly superior to the traditional method in terms of efficiency, accuracy, safety and cost saving, especially in large-scale asset management scenarios, it can significantly improve the operational efficiency of enterprises and reduce risks. This proves the wide applicability and practical value of the present invention in modern asset management.

[0168] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. The asset management method based on BIM, indoor positioning and RFID is characterized by: include, During the design and planning phase, build a BIM model; In the asset procurement and deployment phase, assets are purchased based on the BIM model and deployed in place; During the use and maintenance phase, indoor positioning continuously tracks the location of assets and updates the asset management system in real time; During the asset inventory and audit phase, use RFID readers to quickly and automatically count assets in a certain area; During the asset transfer and scrapping phase, transfer management and scrapping are carried out; The design and planning phase includes: Use BIM modeling technology to plan the layout of various assets layer by layer in the BIM model, assign virtual RFID tags to each preset asset and record them in the BIM model, build an asset database, and record asset lists and detailed information; According to asset requirements, conduct preliminary layout design, space utilization analysis, process optimization, simulation and evaluation for each floor, and finally confirm the asset layout; The space utilization analysis includes using the safety distance assessment data between equipment to perform space utilization analysis, determined based on the specific safety distance required for maintenance and normal use of each asset; If the safety distance assessment data between devices is greater than or equal to the safety distance assessment threshold, the safety distance between assets and between assets and building structures meets the requirements and the space is used reasonably. If the safety distance assessment data between devices is less than the safety distance assessment threshold, the safety distance is insufficient and the layout needs to be readjusted.

2. The asset management method based on BIM, indoor positioning and RFID according to claim 1, characterized in that: The preliminary layout design includes quantitatively demonstrating the space utilization efficiency of the asset layout plan through space efficiency assessment; If the space efficiency is lower than the space efficiency target value, the space utilization is not high and the layout needs to be re-optimized; The process optimization includes quantifying the functional relationships and physical distances between assets through functional proximity data.

3. The asset management method based on BIM, indoor positioning and RFID according to claim 1, characterized in that: The simulation and evaluation include: Verify the actual effect of asset layout through simulation tools; The final confirmation of the asset layout includes a final assessment based on the asset access efficiency data; The assets mentioned include furniture and equipment; The asset database includes a process for recording asset procurement processes, a process for recording asset usage processes, a detailed asset list and detailed information, and a process for recording asset functions.

4. The asset management method based on BIM, indoor positioning and RFID as claimed in claim 3, characterized in that: The deployment of assets in place includes: Generate a list of requirements for asset procurement based on the asset layout information recorded in the BIM model, attach or embed RFID tags to physical assets, deploy assets in place according to the BIM asset layout plan, read RFID tag information and enter it into the asset management system, and bind the asset's RFID tag to the virtual RFID tag recorded in the BIM model; Enter or scan the ID of the physical RFID tag in the BIM model, associate the ID of the physical RFID tag with the virtual RFID tag ID of the asset in the corresponding asset layout in the BIM model, perform system tests and function tests to confirm that the association is correct, then save the binding information and back it up; The system test includes, if the physical RFID and virtual RFID tag information of all assets has been entered into the system, checking whether the physical tag and virtual tag of each asset match, evaluating the consistency of the asset tag, obtaining an overall consistency score, evaluating the overall accuracy of the tag binding based on the consistency score, and if the consistency score is lower than the asset tag consistency score threshold, it is necessary to check and correct the mismatched tags, conduct detailed analysis for mismatched assets, determine the cause of the mismatch, and recalculate the consistency score after correcting the problem until the consistency score threshold is reached, and use the consistency score as part of regular monitoring; The functional test includes testing whether the asset management system can accurately track and manage assets based on RFID tags.

5. The asset management method based on BIM, indoor positioning and RFID according to claim 1, 2 or 4, characterized in that: The indoor positioning continuously tracks the location of assets, including: Indoor positioning continuously tracks the location of assets and updates them to the asset management system in real time. The asset management system automatically sends maintenance reminders based on asset usage and maintenance cycles. After maintenance is completed, the maintenance record is read by a handheld device or updated in the background to the asset information and asset database corresponding to the BIM model; Receive signals from Wi-Fi and UWB devices simultaneously, with Wi-Fi providing preliminary positioning information and UWB providing distance measurement; When an asset enters the reading range of an RFID receiver, the RFID tag is activated and sends an identification code to the receiver. As the asset moves around the room, the asset management system receives and processes signals from Wi-Fi and UWB devices in real time, continuously updating the asset's location information.

6. The asset management method based on BIM, indoor positioning and RFID according to claim 5, characterized in that: The automatic inventory counting includes: The data is automatically compared with the BIM model, providing instant asset inventory reports and importing and exporting asset detail lists and information; For the RFID reader bound to the room, when the asset is within the effective range of the RFID reader, the reader automatically identifies the RFID tag on the asset and records the unique identification code and other relevant information of the tag; The comparison includes the asset information read by the RFID reader being uploaded to the asset management system in real time, comparing the actual inventory data with the asset layout of the BIM model, identifying missing, redundant or mislocated assets through the comparison, providing a real-time asset inventory report, and importing and exporting asset detail lists and information.

7. The asset management method based on BIM, indoor positioning and RFID according to claim 1, 2, 4 or 6, characterized in that: The transfer management includes: Adjust asset positions according to demand, automatically record transfer information, form transfer management, and initiate asset scrapping process when assets reach scrapping conditions, conduct verification and approval, and simultaneously update detailed information of corresponding assets in the asset database and update information in the BIM model; Re-plan asset layout in the BIM model according to demand, adjust asset location, and form transfer management; The scrapping conditions include calculating scrapping assessment data in combination with the actual service life, the number of repairs in the most recent year, and the repair costs in the most recent year; Set an asset scrapping threshold. If the scrapping assessment data is less than the asset scrapping threshold, the asset does not meet the scrapping conditions and the asset will not be scrapped. If the scrapping assessment data is greater than or equal to the asset scrapping threshold, the asset meets the scrapping conditions and the asset scrapping process is initiated for verification and approval. The detailed information of the corresponding asset in the asset database is updated synchronously, and the information in the BIM model is updated.

8. An asset management system based on BIM, indoor positioning and RFID, characterized by: include, The design planning module (100) is used to use BIM modeling technology to plan the layout of various assets layer by layer in the BIM model during the design and planning stage, assign a virtual RFID tag to each preset asset and record it in the BIM model, build an asset database, and record the asset list and detailed information; The asset procurement and deployment module (200) is used to generate a list of requirements for asset procurement according to the asset layout information recorded in the BIM model during the asset procurement and deployment phase, attach or embed RFID tags to physical assets, deploy assets in place according to the BIM asset layout plan, read RFID tag information and enter it into the asset management system, and bind the asset's RFID tag to the virtual RFID tag recorded in the BIM model; The asset use and maintenance module (300) is used to continuously track the asset location through indoor positioning during the use and maintenance phase, and update it to the asset management system in real time. The asset management system automatically sends maintenance reminders based on the asset use and maintenance cycle. After the maintenance is completed, the maintenance record is read by a handheld device or updated in the background to the asset information and asset database corresponding to the BIM model; The asset inventory audit module (400) is used to use an RFID reader to quickly and automatically inventory assets in a certain area during the asset inventory and audit phase, automatically compare the data with the BIM model, provide an instant asset inventory report, and import and export asset detail lists and information; The asset transfer and scrapping module (500) is used to adjust the asset position according to demand during the asset transfer and scrapping processing stage, automatically record the transfer information, and form transfer management. When the asset reaches the scrapping condition, the asset scrapping process is initiated, and verification and approval are carried out. The detailed information of the corresponding asset in the asset database is updated synchronously, and the information in the BIM model is updated.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the asset management method based on BIM, indoor positioning and RFID are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the asset management method based on BIM, indoor positioning and RFID are implemented.

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