A construction project cost active management and control system and method based on a trusted data chain
By introducing a trusted data chain into the construction project, the problems of data authenticity and unreliability in the flow process were solved, enabling real-time cost management and payment compliance, thus forming a shift from passive management to proactive control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QIDIAN TECHNOLOGY CO LTD
- Filing Date
- 2026-04-17
- Publication Date
- 2026-07-31
AI Technical Summary
Construction projects suffer from issues such as the inability to guarantee data authenticity, unreliable data transfer processes, severely delayed cost status perception, and a disconnect between payment and performance processes, leading to passive management and a high risk of overpayment and incorrect payment.
The construction project cost proactive control system based on trusted data chain is adopted. By introducing multiple anti-tampering identifiers in the on-site data encapsulation process and adopting a chain-style synchronous evidence storage mechanism in the data flow process, the authenticity, integrity and timeliness of the data are ensured, and real-time synchronization and verification by multiple parties are achieved.
It enables real-time, transparent, and traceable management of cost data, prevents data tampering, reduces early warning delays, ensures compliance in the payment and performance process, and forms a mandatory closed loop between business and finance.
Smart Images
Figure CN122491904A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of digitalization and data security technology in construction engineering, specifically to a proactive cost control system (100) and method for construction engineering based on trusted data acquisition, tamper-proof encapsulation, and chain synchronization technology. Background Technology
[0002] Construction project cost control has long faced the dilemmas of data distortion, information lag, and passive management. Traditional management models rely on paper documents and offline approvals, making data susceptible to tampering and loss during transmission. Furthermore, the data aggregation cycle is long, and cost overruns are often only discovered during post-construction settlement, resulting in "passive management." While some existing project management software has achieved online operation, it has not solved the problem of data source authenticity, and data silos between systems create "information islands," making real-time, transparent, and traceable cost control impossible.
[0003] The following specific technical problems exist: First, the authenticity of on-site data cannot be guaranteed. Existing mobile data collection applications focus on electronic forms but lack strong binding and anti-counterfeiting mechanisms for data generation time, location, and operator identity, making data easy to forge. Second, the data flow process is unreliable. When data flows between multiple parties such as projects, companies, and suppliers, it relies on single-point database storage, which is at risk of being unilaterally tampered with or denied, making it unusable as an effective basis for settlement and auditing. Third, cost status perception is severely lagging. Due to the long chain of data collection, aggregation, and reconciliation, cost data cannot be reflected in management accounts in real time, resulting in delayed early warnings and control actions that are always "a step behind." Fourth, the payment and performance processes are disconnected. Payment approval is often independent of performance process data, which easily leads to the risk of overpayment and incorrect payment.
[0004] Therefore, a technical solution is needed that can ensure authenticity from the data source, prevent tampering during the transfer process, and achieve real-time synchronization and verification among multiple parties to build a reliable cost data foundation, thereby driving the transformation of cost management from passive to proactive. It is worth noting that the core concept of the technical solution proposed in this application was evaluated and certified as a scientific and technological achievement in the construction industry on September 26, 2023 (Certificate No.: Jiankeping
[2023] 066). According to the scientific and technological novelty search (No.: 2023C1100600) and the evaluation of authoritative institutions, this solution has not been reported in domestic literature and has outstanding novelty and inventiveness. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a construction project cost proactive control system (100) and method based on a trusted data chain. By introducing multiple anti-tampering identifiers in the on-site data encapsulation stage and adopting a chain-style synchronous evidence storage mechanism in the data flow stage, the authenticity, integrity and timeliness of cost data are fundamentally guaranteed, and real-time, transparent and traceable cost management is realized, transforming passive management into proactive control.
[0006] To achieve the above objectives, the present invention adopts the following technical solution.
[0007] In a first aspect, the present invention provides a construction project cost proactive control system (100) based on a trusted data chain, comprising:
[0008] The mobile data acquisition and packaging terminal (110) is configured to generate a semi-structured task sheet according to preset business rules at the construction site and guide the operator to complete the data entry; after the task is completed, the entered data, on-site multimedia data and timestamp, equipment geolocation information, operator digital signature and owner's electronic seal are bound and encrypted to generate a structured anti-tampering data packet (200).
[0009] The trusted data distribution bus (120) is communicatively connected to the mobile data acquisition and encapsulation terminal (110) and is configured to receive the structured tamper-proof data packet (200) and synchronously distribute it to at least four independent receiving nodes in an atomic transaction manner: project ledger module (130), enterprise dynamic ledger module (140), intelligent cost early warning and control engine (150) and external supplier collaboration terminal (300) to achieve multi-party redundant evidence storage of data packets and form a data chain that cannot be unilaterally tampered with;
[0010] The project ledger module (130) is connected to the trusted data distribution bus (120) and is used to store and manage all contract and supplier information, and to display detailed data of the performance process from the data bus;
[0011] The enterprise dynamic ledger module (140) is connected to the trusted data distribution bus (120) and is used to receive and aggregate all contract-related cost data packets in real time, and generate dynamic and visualized cost accounts according to user, account and time dimensions.
[0012] The intelligent cost early warning and control engine (150) is connected to the trusted data distribution bus (120) and the enterprise dynamic ledger module (140) respectively. It is configured to monitor and analyze the data in the dynamic ledger in real time based on preset cost control rules. When the cost deviation is detected to exceed the threshold, it automatically generates early warning information and control suggestion instructions.
[0013] Furthermore, the data structure of the structured tamper-proof data packet (200) includes: a basic data area (210) for storing the business field content of the form; a tamper-proof identifier area (220) for storing the timestamp, geographic location coordinates, digital signature hash value, and electronic seal image or hash value; and a metadata area (230) for storing the data packet ID, associated contract ID, creation terminal ID, and data packet version number.
[0014] Furthermore, the synchronous distribution mechanism of the trusted data distribution bus (120) is as follows: after receiving a complete structured tamper-proof data packet (200), it attempts to push it to all preset receiving nodes within a transaction; the transaction is marked as successful only when all nodes return a successful reception confirmation, otherwise it is rolled back and retried to ensure the integrity of the data chain.
[0015] Furthermore, the intelligent cost early warning and control engine (150) has preset rules including: comparing the actual consumption with the theoretical consumption, the contract budget, the current completed output value or the progress in real time, and triggering different levels of early warning when the deviation exceeds the set percentage.
[0016] Furthermore, the system also includes an online payment and settlement process engine (160), which is connected to the project ledger module (130) and the enterprise dynamic ledger module (140) and is configured to trigger the payment approval process only when the performance data packet corresponding to the payment is completely present in the project ledger and has been verified to be correct, thereby realizing the mandatory association between payment and trusted performance data.
[0017] Secondly, the present invention provides a method for proactive control of construction project costs based on a trusted data chain, applied to the aforementioned system (100), comprising the following steps:
[0018] S1: Through the mobile data acquisition and packaging terminal (110), a semi-structured task sheet is generated on-site based on a preset contract to guide the operation and data entry;
[0019] S2: After the task is completed, the terminal automatically collects the current timestamp and device location, and calls the digital signature and electronic seal service to bind and encrypt the task data with the four anti-tampering identifiers of timestamp, location, digital signature and electronic seal, and encapsulates it into a structured anti-tampering data packet (200).
[0020] S3: The trusted data distribution bus (120) receives the data packet and pushes it synchronously to the project ledger module (130), the enterprise dynamic ledger module (140), the intelligent cost early warning and control engine (150) and the external supplier collaboration terminal (300) in an atomic transaction manner, forming a multi-party redundant evidence data chain.
[0021] S4: Enterprise dynamic ledger module (140) aggregates cost data from all data chains in real time and updates dynamic cost accounts;
[0022] S5: Intelligent cost early warning and control engine (150) continuously compares dynamic accounting data with preset rules. Once an anomaly is detected, it automatically triggers an early warning and generates control suggestions.
[0023] S6: When a payment is initiated, the online payment and settlement process engine (160) verifies the integrity of the corresponding data chain for fulfillment. If the verification passes, the online payment process is started.
[0024] Furthermore, in step S2, the digital signature uses a private key signature based on an asymmetric encryption algorithm, the electronic seal is a reliable electronic seal certified by an authoritative CA institution, and the timestamp originates from the National Time Service Center or an immutable blockchain timestamp service.
[0025] Furthermore, in step S5, the early warning and control suggestions are delivered to relevant responsible persons in real time through message push, workflow to-do list, or visual interface highlighting.
[0026] The beneficial effects of this invention are as follows:
[0027] (i) Achieve trusted data collection at the source. By strongly binding the four identifiers of timestamp, geolocation, digital signature, and electronic seal with business data, each on-site form data has uniqueness, spatiotemporal attributes, and legal validity, eliminating data forgery at the source and laying a trusted data foundation for the entire control system.
[0028] (II) Constructing a tamper-proof data transfer chain. The tamper-proof data packet (200) is synchronously distributed to at least four independent nodes (project end, company end, supplier end, etc.) in an atomic transaction manner through a trusted data distribution bus (120), forming a multi-party redundant evidence storage. If any party unilaterally tampers with the data, it will be inconsistent with the evidence storage records of other parties, thereby ensuring the immutability of the data during the transfer process and forming a "trusted data chain" with legal evidentiary effect.
[0029] (III) Realize real-time awareness and proactive early warning of cost status. Based on the chain synchronization mechanism, cost data can be updated to the enterprise dynamic ledger module (140) in seconds. Combined with the intelligent cost early warning and control engine (150), the system can monitor and automatically warn of cost deviations in real time, and advance the management action from "discovering problems after the fact" to "identifying risks during the process" and even "predicting trends in advance", realizing a fundamental transformation from passive management to proactive control.
[0030] (iv) Forming a mandatory closed loop between business and finance. The online payment and settlement process engine (160) is forcibly linked with the trusted performance data chain. Only verified and on-chain evidenced performance data can initiate payment approval, thereby technically eliminating the risk of overpayment and incorrect payment, and realizing the "three-flow integration" of business flow, data flow and capital flow.
[0031] (V) Authoritative technical verification. The core concept of this technical solution was evaluated and certified by the Ministry of Housing and Urban-Rural Development of the People's Republic of China in 2023 (Jiankeping
[2023] No. 066). The authoritative certification by the national industry authorities further verifies the technical advancement and engineering practical value of this invention. Attached Figure Description
[0032] Figure 1 The schematic diagram of the overall architecture of the construction project cost proactive control system (100) based on trusted data chain provided in the embodiments of the present invention shows the interrelationship and data flow of the mobile data acquisition and packaging terminal (110), trusted data distribution bus (120), project ledger module (130), enterprise dynamic ledger module (140), intelligent cost early warning and control engine (150) and online payment and settlement process engine (160).
[0033] Figure 2 This is a schematic diagram of the structure of the structured anti-tamper data packet (200) provided in an embodiment of the present invention, showing a three-layer data structure of basic data area (210), anti-tamper identification area (220) and metadata area (230).
[0034] Figure 3 The schematic diagram of the chain-like synchronization process of the trusted data distribution bus (120) provided in the embodiment of the present invention shows the mechanism by which data packets (200) are synchronously distributed to the project ledger module (130), the enterprise dynamic ledger module (140), the intelligent cost early warning and control engine (150), and the external supplier collaboration terminal (300) in an atomic transaction manner.
[0035] Figure 4 The flowchart of the closed-loop management and control process from data acquisition to proactive early warning provided in the embodiments of the present invention shows the complete management and control closed loop from the generation of data packets (200) by the mobile data acquisition and encapsulation terminal (110), through the trusted data distribution bus (120), the enterprise dynamic ledger module (140), the intelligent cost early warning and control engine (150) to the online payment and settlement process engine (160). Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1: System Architecture and Data Encapsulation
[0037] like Figure 1 As shown, this system (100) includes a mobile data acquisition and packaging terminal (110) (installed on the mobile phone of the on-site management personnel), a trusted data distribution bus (120) (deployed in the cloud), a project ledger module (130), an enterprise dynamic ledger module (140), an intelligent cost early warning and control engine (150), and an online payment and settlement process engine (160).
[0038] Taking the daily wage confirmation scenario for a labor team as an example:
[0039] In the morning, the foreman used a mobile terminal (110) to generate a semi-structured task sheet for the "rebar tying team", which included mandatory fields such as work content and quantity.
[0040] After the work was completed in the afternoon, the foreman and team leader jointly confirmed the completed quantity and number of workers on the terminal (110). At this time, the terminal automatically performed the following operations (such as...). Figure 2 As shown):
[0041] Call the system time service to generate a timestamp (accurate to the second).
[0042] Call the GPS / BeiDou module to obtain the current geographic location coordinates.
[0043] The foreman and team leader are prompted to perform a digital signature (confirmed via biometrics or password), which uses a private key signature based on an asymmetric encryption algorithm.
[0044] The electronic seal service of the company and the labor service company is used to affix the electronic seals of both parties. The electronic seals are reliable electronic signatures certified by an authoritative CA institution.
[0045] The terminal (110) encapsulates the business data, timestamp, location coordinates, digital signature string, and electronic seal image hash value into a JSON structure, and encrypts it as a whole using the terminal's private key or the system's symmetric key to generate the final structured tamper-proof data packet (200). This data packet (200) is like an envelope sealed with multiple locks, and its content is firmly bound to the generation environment, responsible person, and owner. Example 2: Chained Synchronization and Evidence Storage
[0046] like Figure 3 As shown, after the above data packet (200) is generated, it is immediately sent to the trusted data distribution bus (120). After receiving the data packet, the bus initiates an atomic transaction and performs the following operations in parallel:
[0047] The data packet (200) is stored in the database of the project ledger module (130) as a record of the contract performance process.
[0048] The cost-critical information (such as man-days and amounts) in the data package (200) is synchronized to the enterprise dynamic ledger module (140) to update the cumulative labor cost of the project in real time.
[0049] The data packet (200) is pushed to the intelligent cost early warning and control engine (150), which compares it with the planned number of employees for the day.
[0050] Send a copy to the external supplier collaboration terminal (300) of the labor service company (supplier) for verification and confirmation.
[0051] The transaction is committed successfully only after all the above operations return success confirmations. If any step fails, the transaction will be rolled back and retried. This mechanism ensures that data is simultaneously and consistently stored across multiple parties, including the project, company, and suppliers, forming a data chain. No party can unilaterally deny or modify this record afterward, as copies held by other parties can be cross-verified. Example 3: Proactive Early Warning and Control Closed Loop
[0052] like Figure 4 As shown, the enterprise dynamic ledger module (140) reflects the latest cost status in real time. The intelligent cost early warning and control engine (150) runs continuously with preset rules such as: "Actual daily employment exceeds the plan by 20%" or "Cumulative labor costs exceed the budget corresponding to the current output value".
[0053] Continuing with the previous example, if the number of workers employed by the "rebar tying team" on that day far exceeds the plan, the early warning engine (150) will immediately trigger a yellow warning after the data chain synchronization is completed, and notify the project manager via message push: "The number of workers employed in the rebar tying process of XX project today exceeds the standard by 30%, please pay attention!"
[0054] If the cumulative labor costs are close to the warning threshold, the engine (150) can trigger an orange warning and generate a control suggestion: "According to the progress, the demand for steelworkers will increase next month. It is recommended to lock in the work teams in advance or assess the feasibility of process optimization." The warning information can directly generate to-do tasks, drive the intervention of management personnel, and achieve proactive and real-time control. Example 4: Payment Linkage
[0055] At the end of the month, the labor service company initiates a progress payment application through the system. The online payment and settlement process engine (160) automatically intercepts the application and initiates verification: it checks whether the daily wage data package corresponding to the application payment and confirmed by both parties has been completely present on the data chain. Only when all data packages pass the verification will the payment process be activated and enter the approval stage. This technically ensures "how much work you do, how much you get," realizing a hard closed loop between business and finance.
[0056] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.
Claims
1. A construction project cost active management and control system (100) based on a trusted data chain, characterized in that, include: The mobile data acquisition and packaging terminal (110) is configured to generate a semi-structured task sheet at the construction site according to preset business rules and guide the operator to complete the data entry. After the task is completed, the data filled in, on-site multimedia data and timestamps, equipment geolocation information, operator digital signature and owner's electronic seal are bound and encrypted to generate a structured anti-tamper data package (200). The trusted data distribution bus (120) is communicatively connected to the mobile data acquisition and encapsulation terminal (110) and is configured to receive the structured tamper-proof data packet (200) and synchronously distribute it to at least four independent receiving nodes in an atomic transaction manner, so as to realize multi-party redundant evidence storage of the data packet and form a data chain that cannot be unilaterally tampered with. The project ledger module (130) is connected to the trusted data distribution bus (120) and is used to store and manage all contract and supplier information, and to display detailed data of the performance process from the data bus; The enterprise dynamic ledger module (140) is connected to the trusted data distribution bus (120) and is used to receive and aggregate all contract-related cost data packets in real time, and generate dynamic and visualized cost accounts according to user, account and time dimensions. The intelligent cost early warning and control engine (150) is connected to the trusted data distribution bus (120) and the enterprise dynamic ledger module (140) respectively. It is configured to monitor and analyze the data in the dynamic ledger in real time based on preset cost control rules. When the cost deviation is detected to exceed the threshold, it automatically generates early warning information and control suggestion instructions.
2. The system of claim 1, wherein, The data structure of the structured tamper-proof data packet (200) includes: A basic data area (210) is used to store the content of the business fields of the form; A tamper-proof identification area (220) is used to store the timestamp, geolocation coordinates, digital signature hash value, and electronic seal image or hash value; A metadata area (230) is used to store the packet ID, associated contract ID, creation terminal ID, and packet version number.
3. The system of claim 1, wherein, The synchronous distribution mechanism of the trusted data distribution bus (120) is as follows: after receiving a complete structured anti-tamper data packet (200), it attempts to push it to all preset receiving nodes within a transaction; the transaction is marked as successful only when all nodes return a successful reception confirmation, otherwise it is rolled back and retried to ensure the integrity of the data chain.
4. The system according to claim 1, characterized in that, The intelligent cost early warning and control engine (150) has preset rules including: comparing the actual consumption with the theoretical consumption, the contract budget, the current completed output value or the progress in real time, and triggering different levels of early warning when the deviation exceeds the set percentage.
5. The system according to claim 1, characterized in that, The system also includes: The online payment and settlement process engine (160), connected to the project ledger module (130) and the enterprise dynamic ledger module (140), is configured to trigger the payment approval process only when the performance data packet corresponding to the payment is completely present in the project ledger and has been verified to be correct, thereby realizing the mandatory association between payment and trusted performance data.
6. A method for proactive control of construction project costs based on a trusted data chain, applied to the system (100) described in any one of claims 1-5, characterized in that, Includes the following steps: S1: Through the mobile data acquisition and packaging terminal (110), a semi-structured task sheet is generated on-site based on a preset contract to guide the operation and data entry; S2: After the task is completed, the terminal automatically collects the current timestamp and device location, and calls the digital signature and electronic seal service to bind and encrypt the task data with the four anti-tampering identifiers of timestamp, location, digital signature and electronic seal, and encapsulates it into a structured anti-tampering data packet (200). S3: The trusted data distribution bus (120) receives the data packet and pushes it synchronously to the project ledger module (130), the enterprise dynamic ledger module (140), the intelligent cost early warning and control engine (150) and the external supplier collaboration terminal (300) in an atomic transaction manner, forming a multi-party redundant evidence data chain. S4: Enterprise dynamic ledger module (140) aggregates cost data from all data chains in real time and updates dynamic cost accounts; S5: Intelligent cost early warning and control engine (150) continuously compares dynamic accounting data with preset rules. Once an anomaly is detected, it automatically triggers an early warning and generates control suggestions. S6: When a payment is initiated, the online payment and settlement process engine (160) verifies the integrity of the corresponding data chain for fulfillment. If the verification passes, the online payment process is started.
7. The method according to claim 6, characterized in that, In step S2, the digital signature uses a private key signature based on an asymmetric encryption algorithm, the electronic seal is a reliable electronic seal certified by an authoritative CA institution, and the timestamp comes from the National Time Service Center or an immutable blockchain timestamp service.
8. The method according to claim 6, characterized in that, In step S5, the early warning and control suggestions are delivered to the relevant responsible persons in real time through message push, workflow to-do list, or visual interface highlighting.