Intelligent measuring and calculating method for quota consumption of 500kv substation technical transformation project

Abstract

The application discloses a 500kV transformer substation technical transformation project quota consumption intelligent measurement method, which comprises the following steps: collecting data and constructing a process method atlas; identifying the differences between the target project atlas and the benchmark quota atlas, and routing the different processes to the quota consumption revision, the measure cost physical quantity, the special process module matching and the contract visa processing path; generating process resource consumption benchmarks and revised base prices based on the quality-weighted field samples, determining multiple access parameters according to the transformation interval and stage division, and generating safety protection physical quantity costs according to the material, length and use frequency of the protection facilities; modularly matching the air chamber half-pressure reduction, the finished product protection, the adjacent equipment test, the lead wire disassembly and assembly, the mixed gas field mixing, the old disassembly and transportation, the operation platform disassembly and assembly and the phased repeated construction; and finally, performing deviation checking and version updating by using historical settlement or actual field cost.

Description

Technical Field

[0001] This invention relates to the field of data processing technology, and more specifically, to a method for intelligently calculating the quota consumption of 500kV substation renovation projects. Background Technology

[0002] 500kV substations are critical hubs in the power transmission network. As equipment ages, distribution devices such as GIS, circuit breakers, surge arresters, instrument transformers, and capacitors require continuous replacement, expansion, or performance upgrades. Compared to new construction projects, technical renovation projects are typically implemented around existing facilities and operating equipment, characterized by dispersed power outage windows, limited work space, multiple transports of equipment and materials, large temporary safety isolation areas, phased construction at different intervals, and the need to consider the protection of existing equipment.

[0003] Existing pricing standards typically set up quota items according to equipment type and voltage level, which can cover general installation procedures. However, when dealing with special construction organization and additional processes in technical renovation projects, manual experience is often used to supplement the standards, separate forms are used for calculation, or post-project verification is required. Different compilers may have inconsistent classifications, fee calculations, and voucher requirements for the same process, which can easily lead to problems such as omissions in procedures, inaccurate resource consumption, double counting of measure fees, or lack of settlement basis for unforeseen expenses.

[0004] Furthermore, on-site measurement data, design data, quota data, and settlement data are stored in a scattered manner, lacking a unified data structure and correlation. Traditional methods struggle to automatically identify process differences between the target technical upgrade project and the benchmark quota, and also find it difficult to stably allocate these differences to consumption revisions, measure cost quantification, special process modules, or contract approval paths, resulting in pricing standards that are difficult to reuse and continuously update. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide an intelligent calculation method for the quota consumption of 500kV substation technical renovation projects, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] Acquire equipment attribute data, renovation interval data, power outage organization data, construction process data, site constraint data, labor, material and equipment consumption samples, and historical settlement data for the target technological upgrading project;

[0008] Based on the equipment attribute data, construction process data, and on-site constraint data, a target process and method map is constructed to associate equipment, process, resource, and constraint. The target process and method map is then compared with the benchmark quota map to obtain a set of standard processes, a set of processes with consumption to be revised, a set of processes with measures costs to be quantified, a set of special processes, and a set of unforeseen cost events.

[0009] For the set of processes to be revised based on the consumption amount, a process-resource consumption matrix is ​​established. For the material, human and machine consumption samples from different sources, the unit is unified, the sample integrity is checked, outlier is handled, and the quality weight is determined to obtain the effective consumption amount sample.

[0010] Based on the effective consumption sample, labor consumption benchmarks, material consumption benchmarks, and machinery consumption benchmarks for each process are generated, and revised quota base prices are formed by combining the corresponding resource unit prices.

[0011] For the set of procedures to be quantified for the aforementioned measures, multiple entry and exit parameters are determined based on the spatial distribution of the renovation intervals and the division of power outage stages, and the physical quantity cost of safety protection is generated based on the material, length, and number of uses of the external protective facilities in the construction area.

[0012] The set of special process procedures is matched with a preset special process module library to generate a corresponding modular cost list. The set of unforeseen cost events is routed to the contract estimate and visa settlement path or the professional engineering provisional estimate and actual settlement path according to the cause of the cost and the type of settlement voucher.

[0013] The revised quota base price, the calculation results of the measure fee, the modular cost list and the handling results of unforeseen expenses are merged into a candidate pricing standard package. The candidate pricing standard package is checked for deviation using historical settlement data or actual on-site costs, and a pricing standard version is output based on the check results. Then, a corresponding engineering physical resource scheduling instruction is generated based on the pricing standard version to drive the front-end material management system to perform automated preparation and allocation of physical materials and mechanical equipment.

[0014] Preferably, the target process diagram includes equipment nodes, process nodes, resource nodes, and constraint nodes; the equipment nodes record at least the equipment type, voltage level, interval type, and installation location; the process nodes record at least the process name, sequence, applicable equipment, and whether it falls within a power outage window; the resource nodes record at least the labor type, material specifications, machinery type, and unit of measurement; and the constraint nodes record at least the energized proximity conditions, work space, power outage stage, safety isolation requirements, and equipment supply method; and directed edges record the relationships between equipment and processes, processes and resources, and processes and constraints.

[0015] Preferably, benchmark process sub-graphs are extracted from the benchmark quota map according to equipment type and voltage level; a sub-graph isomorphism algorithm is used to match nodes and directed edge order relationships between the target process map and the benchmark process sub-graph, and resource coverage matching is performed by calculating the cosine similarity of node attribute feature vectors; processes in the target process map that can be completely covered by the benchmark process sub-graph are included in the standard process set; processes with the same resource type but consumption levels exceeding the preset deviation range are included in the consumption amount revision process set; processes caused by on-site safety or construction organization conditions and suitable for calculation according to rate or physical quantity are included in the measure cost quantification process set; and processes that cannot be covered by existing quota work content and can be reused are included in the special process set.

[0016] Preferably, the outlier handling includes calculating the median and dispersion scale of the samples based on the same equipment type, the same process, and the same resource category, and marking samples that deviate from the median by more than a preset dispersion threshold as samples to be verified; the quality weight is calculated by a preset evaluation function, which is obtained by multiplying the sample's data completeness score, on-site measurement reliability score, process matching score, and project representativeness score by preset weight coefficients and then summing them, and performing cross-consistency verification between at least two independent data sources.

[0017] Preferably, the effective consumption samples for each process are weighted and aggregated according to the quality weight to obtain the unit engineering quantity consumption benchmarks for labor, materials, and machinery; a hierarchical consumption template is formed according to equipment type, rated voltage, and interval type; the unit engineering quantity consumption benchmarks are multiplied by the corresponding labor unit price, material unit price, and machinery shift unit price respectively and summarized to form a revised quota base price that can be traced back to the process and sample source.

[0018] Preferably, the multiple entry and exit parameters are determined according to the number of intervals where the modification content is located, the combination of intervals that can be shut down simultaneously, and the number of construction stages; when multiple modification intervals cannot be shut down simultaneously, each independent power outage construction stage is corresponding to one entry and exit pricing unit; the cost of safety protection physical quantity is calculated according to the length, material unit price, turnover times and loss coefficient of various safety fences or protective facilities outside the construction area, and is listed separately from the basic safety and civilized construction cost.

[0019] Preferably, the preset special process module library includes at least: a module for reducing half-pressure in adjacent gas chambers for GIS equipment installation, a module for protecting existing facilities within the station, a module for electrical testing of adjacent equipment, a module for removing and restoring withstand voltage test leads, a module for on-site mixing of mixed gases, a module for transporting dismantled equipment, a module for removing and installing equipment operating platforms, and a module for repeated fireproofing and sealing of cables in stages; each module stores triggering conditions, work content boundaries, resource composition, pricing methods, voucher requirements, and mutual exclusion or dependency relationships with other modules.

[0020] Preferably, the set of unforeseen cost events includes work stoppages or idle time caused by reasons other than those of the construction unit, secondary transportation of equipment and materials, preliminary exploration and cable surveying, waste gas recovery and disposal, and cooperation from equipment manufacturers; among them, events that can be verified by the increased man-days and machine shift records are routed to the contract estimation and visa settlement path, and events that can be verified by the lease contract, technical service contract, invoice, or confirmed supplier settlement voucher are routed to the professional engineering provisional price and actual settlement path; the deviation verification determines whether to update the consumption benchmark, module parameters, or routing rules based on the relative deviation between the candidate pricing result and the actual settlement result.

[0021] The technical effects and advantages of this invention are as follows:

[0022] The process and construction method atlas constructed in this invention provides a unified description of equipment, procedures, resources, and on-site constraints, enabling precise traceability of pricing basis to specific procedures and their data sources. Through graph structure comparison, the system can automatically identify procedures outside the coverage of existing quotas, significantly reducing omissions and misclassifications caused by reliance on manual experience. Simultaneously, through standardized consumption matrices, anomaly sample identification, and quality-weighted aggregation, the representativeness of material, labor, and equipment consumption benchmarks to actual on-site inputs is effectively improved. The calculation of provisional costs separates the basic rate from the physical quantity of protective facilities outside the construction area and determines multiple entry and exit parameters based on renovation intervals and power outage phases, thereby enhancing adaptability. Throughout the process of heterogeneous engineering data processing, the dual-path routing of a special process module library and unforeseen costs ensures consistency between engineering node data across systems. Finally, by using actual settlement deviation verification and version management to update pricing standards, the system effectively overcomes the problem of feature loss during massive engineering data comparison, reduces the data processing response latency of the calculation system, and improves the digital scheduling efficiency of substation physical resources. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the method flow of the present invention. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] This embodiment divides the data of the target technical renovation project into project layer, equipment layer, process layer, resource layer, constraint layer, and voucher layer. The project layer records the substation name, project type, price base period, renovation scope, and planned construction period; the equipment layer records the equipment type, voltage level, model, bay type, installation location, and supplier (A or B) relationship; the process layer records the construction preparation, dismantling, installation, adjustment, testing, restoration, and acceptance processes, as well as the sequence of these processes; the resource layer records the number of general laborers, installation technicians, material specifications, machinery types, shifts, and units of measurement; the constraint layer records requirements for proximity to energized equipment, confined spaces, power outage phases, isolation zones, transportation routes, and protection of existing facilities; and the voucher layer records construction logs, metering records, visa slips, lease contracts, technical service contracts, invoices, and settlement audit results.

[0027] Each process node in the graph is associated with one or more equipment nodes, and connections are established through relationships such as preceding processes, succeeding processes, consumed resources, constraints, generated documents, and corresponding cost paths. For the same type of equipment, different process sub-graphs can be formed according to voltage level, interval type, and indoor / outdoor conditions. The graph structure is used for both process coverage comparison and for the traceability of subsequent pricing results.

[0028] Example 2

[0029] The system first selects candidate benchmark subgraphs from the benchmark quota map based on equipment type, voltage level, and bay type. Then, it matches the target project map with the candidate benchmark subgraphs. To achieve accurate comparison, the system first converts process nodes and resource nodes into multi-dimensional attribute feature vectors. Considering the unique high-voltage crosstalk prevention and live proximity physical attributes of 500kV substations, the multi-dimensional attribute feature vectors are specifically embedded with power outage safety distance weights and electromagnetic interference constraint factors during construction. Next, a subgraph isomorphism algorithm is used to match nodes and directed edge order relationships between the target process map and the candidate benchmark subgraphs. During traversal matching, the aforementioned embedded factors are used to automatically prune and remove illegal process subgraphs that do not meet high-voltage safety isolation requirements, reducing the computational load on the computer system. Resource coverage matching is performed by calculating the cosine similarity of the node attribute feature vectors. The matching content specifically includes whether process nodes exist, whether the process order is consistent, whether resource categories are covered, whether on-site constraints lead to new work, and whether the new work is reusable.

[0030] When the work content and resource composition of the target process are both covered by the baseline sub-map, it is marked as a standard process; when the work content is covered but the actual on-site consumption is consistently higher or lower than the current baseline, it is marked as a process where consumption needs to be revised; when the new cost is mainly caused by construction organization, safety protection, or the number of times workers enter and leave the site, and can be calculated through rates or physical quantities, it is marked as a process where measure costs need to be quantified; when the new work has clear triggering conditions, work boundaries, and reusable resource composition, it is marked as a special process; when the new cost is triggered by an uncertain event and the actual workload or voucher can only be confirmed during construction, it is marked as an unforeseen cost event.

[0031] Through the above classification, the system transforms complex technical renovation and construction differences into executable cost processing paths, avoiding the same cost being repeatedly included in quotas, measure fees, and visas.

[0032] Example 3

[0033] For equipment such as GIS, circuit breakers, surge arresters, instrument transformers, and capacitors, the system establishes standardized consumption data collection templates according to work processes. Each sample must include at least the equipment conditions, work process, resource name, specifications, unit of measurement, consumption quantity, data source, measurement time, and review status. The system unifies "kilovolt" and "kV", different length or weight units, and different machine shift records to a standard unit, and marks records lacking key equipment conditions or work process conditions as incomplete samples.

[0034] For samples of the same equipment type, the same process, and the same resource category, the system calculates the median and the discrete scale. Samples that deviate from the median by more than a threshold are not directly deleted, but are placed in a verification queue. The system then uses construction logs, power outage duration, machinery substitution, and site constraints to determine whether the sample represents a genuine high-consumption scenario.

[0035] Each valid sample is assigned a quality weight. The quality weight is determined by a combination of data completeness, on-site measurement reliability, process matching degree, and project representativeness. Continuous on-site timed measurements, resource records confirmed by both the construction and supervision parties, and settlement data with complete documentation receive higher weights; data derived solely from recall questionnaires and lacking process breakdowns receive lower weights.

[0036]

[0037] in, Indicates the baseline for process resource consumption. Indicates the first Resource consumption per sample; Indicates the first The quality weights of each sample; Indicates the total number of samples;

[0038] The quality weight The specific calculation method is as follows:

[0039]

[0040] Where I represents data completeness, E represents the reliability of on-site measurements, F represents the process matching degree, and G represents the normalized score of project representativeness. These are the corresponding preset weighting coefficients (e.g., 0.3, 0.3, 0.2, and 0.2 respectively); the normalized score is derived according to preset rules, such as data completeness. The value is 0 when the key field is missing, and 1 when it is complete.

[0041] The system performs weighted aggregation on manual labor, materials, and machinery separately, and generates tiered templates based on equipment type, voltage level, bay type, and installation location. When the sample size is insufficient, templates from adjacent tiers can be used as prior values, and updated progressively in subsequent projects.

[0042]

[0043] in, Indicates the baseline for labor consumption; Indicates the unit price of labor; Indicates the material consumption benchmark. Indicates the unit price of materials; Indicates the mechanical consumption benchmark. This indicates the unit price per machine shift.

[0044] The generated revised quota base price saves its data version, sample range, price base period, applicable equipment conditions and corresponding process, so as to be traced when the pricing standard is updated or audited.

[0045] For example, three samples of manual labor consumption were collected for the "old gas recovery" process in the GIS equipment renovation of a 500kV substation. Sample 1 had complete data and continuous on-site time measurement records (i.e., I=1, E=1, F=1, G=1); Sample 2 was missing some time measurement fields due to work stoppage caused by heavy rain (i.e., I=0, E=1, F=1, G=0.5); Sample 3 was data reported by the construction party afterward (i.e., I=1, E=0.2, F=0.5, G=0.5). These data were collected according to preset weighting coefficients. , , , Calculate and obtain the quality weight of sample 1. Sample 2 Sample 3 Assuming the labor consumption C for these three sample records is 11.5 man-days, 13.2 man-days, and 16.0 man-days respectively, substituting these values ​​into the weighted aggregation formula, we obtain the labor consumption baseline B = (11.5 × 1.0 + 13.2 × 0.575 + 16.0 × 0.525) ÷ (1.0 + 0.575 + 0.525) = 13.09 man-days. This specific example demonstrates that the system can effectively reduce the weight of low-quality outlier samples.

[0046] Example 4

[0047] The key parameters for multiple entry and exit costs are not directly derived from the actual entry and exit records that can only be determined after construction is completed, but are deduced during the preliminary budgeting stage based on the renovation intervals and power outage organization. The system first identifies interval combinations that can be simultaneously de-energized and continuously constructed, and then defines each independent power outage construction stage as an entry and exit pricing unit. When three intervals must be de-energized sequentially for construction, they correspond to three independent construction stages; when two adjacent intervals can be de-energized simultaneously and share construction preparation, they can be combined into one pricing unit.

[0048] The cost of safe and civilized construction consists of the basic cost of safe and civilized construction and the cost of physical protective materials outside the construction area. For steel fences, insulated fences, protective panels, dustproof covering materials, shock-absorbing pads or corner protectors outside the construction area, the system reads their material, length or area, turnover times, unit price and loss coefficient to generate the cost of physical materials.

[0049]

[0050] This indicates the cost of the actual protective equipment. Indicates the first The physical quantity of protective equipment. Indicates the first The corresponding unit price of similar protective equipment. Indicates the first Correction factor for the number of uses of protective equipment. Indicates the first The loss coefficient of protective equipment This indicates the total number of categories of protective objects.

[0051] This separate calculation method avoids averaging the cost of large-scale safety isolation into a uniform rate that does not match the scale of construction, and allows additional protective measures outside the construction area to be reviewed separately.

[0052] Example 5

[0053] Each module in the special process module library includes a module name, trigger conditions, applicable equipment, work content boundaries, input parameters, resource composition, pricing method, voucher requirements, and dependencies and mutual exclusions with other modules. Example modules are shown in Table 1.

[0054] Table 1

[0055]

[0056] During module matching, the system generates module triggering features based on the equipment type, construction boundaries, and constraint nodes in the target process and method diagram. When multiple modules simultaneously meet the triggering conditions, the execution order is determined according to dependencies. For example, the gas chamber half-pressure reduction module is generated first, and then it is determined whether to generate the electrical test module for adjacent equipment. For content that is already fully covered by existing quotas, mutual exclusion rules prohibit the duplicate generation of module costs.

[0057] Example 6

[0058] Unforeseen cost events are categorized into two types. The first type includes events that can be verified by increasing man-days, machine shifts, or on-site workload records. These include work stoppages or idle time caused by reasons other than those of the construction unit, secondary handling of equipment and materials, and preliminary exploration and cable laying. During the design phase, the system generates estimated costs based on technical specifications and establishes compensation conditions, record fields, and deadlines for verification in the tender documents and contracts. Once the costs actually occur, settlement is made based on confirmed man-days, machine shifts, and workload verifications.

[0059] The second category comprises events that typically require third-party suppliers, equipment manufacturers, or professional service organizations, including waste gas recovery and disposal, and equipment manufacturer cooperation. The system includes provisional estimates for specialized engineering work in the tender list and contracts, and specifies the lease agreements, technical service contracts, invoices, test reports, or mutually confirmed records required for actual settlement. The final settlement is based on the confirmed evidence and actual pricing.

[0060] The cost routing rules simultaneously record the cause of the event, attribution of responsibility, cost composition, voucher type, and settlement path. When the responsibility for the event lies with the construction unit's own organizational reasons, the system will not enter the compensation path; when the same work has already been priced by the special process module, the system will prevent the generation of visa fees again through a unique work identifier.

[0061] Example 7

[0062] The candidate pricing standard package includes revised quota base prices, measure fee parameters, a list of special process modules, contract approval rules, applicable conditions, and data versions. The system compares the candidate pricing results with historical settlements or actual on-site costs after adjusting for the same price base period.

[0063]

[0064] in, Indicates the candidate pricing results. This indicates the actual settlement result. This represents the absolute value of the difference between the candidate pricing result and the actual settlement result. .

[0065] When the relative deviation does not exceed the set threshold, the candidate standard can enter the release state; when the deviation exceeds the threshold, the system uses the graph relationship to locate the source of the deviation. If the deviation is concentrated in specific process resources, the consumption benchmark is updated; if the deviation is related to the modification interval and power outage phase, the multiple entry and exit parameters are updated; if the deviation originates from the special process work boundary, the module triggering conditions or resource composition are updated; if the deviation originates from missing settlement vouchers or incorrect responsibility attribution, the cost routing rules are updated.

[0066] Example 8

[0067] A 500kV substation requires the phased renovation of three GIS bays. After reading the power outage plan, the system identifies that the three bays cannot be de-energized simultaneously, thus determining three independent construction phases. The target process method diagram includes procedures such as adjacent gas chamber extraction, gas recovery, refilling, and gas testing for bays not in this phase, while the benchmark quota diagram only covers the installation of GIS equipment and routine gas filling in this phase. The system retains the routine installation procedures as standard procedures, classifies construction preparation and machinery input, where on-site measured resources are significantly higher than the benchmark, as procedures requiring revision of consumption quantities, classifies the entry and exit points for the three phases and the insulation fencing outside the construction area as temporary cost paths, and matches the half-pressure reduction of adjacent gas chambers and adjacent equipment testing to the corresponding modules.

[0068] If temporary adjustments to the operation plan during construction cause delays in machinery and personnel, the system will route the event to the contract estimate and visa settlement path based on the reason for the stoppage and on-site records; if the old If the gas requires third-party disposal, the pricing will be routed to either a provisional estimate by a specialized engineering firm or a settlement based on actual costs. The final pricing package will cover standard rates, phased organization, safety precautions, special gas processes, and handling of ad hoc incidents.

[0069] Example 9

[0070] For multiple voltage transformer replacement projects, the system generates a consumption template based on individual equipment and corresponding procedures. It then weights and aggregates the labor, material, and equipment data for procedures such as construction preparation, equipment installation, adjustment and tightening, accessory and grounding installation, individual unit commissioning, and quality acceptance to calculate the candidate installation cost per unit. The candidate cost is then multiplied by the number of units and compared with the settlement results of projects in the same price base period.

[0071] When the relative deviations of multiple items are all within the allowable range, it indicates that the consumption benchmark can reflect the actual construction cost well. When the deviation of a certain item is large, the system further checks whether there are untriggered conditions such as site restrictions, foundation reinforcement, secondary transportation, phased power outages, or manufacturer cooperation for the item, and supplements the map constraint nodes or module trigger conditions accordingly.

[0072] Each update generates a new version number, while retaining the previous version, the reason for the change, the types of projects affected, validation samples, and approval records, thus forming an auditable evolution process of the pricing standard.

[0073] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for intelligently calculating the consumption quota of 500kV substation technical renovation projects, characterized in that... The method includes: Acquire equipment attribute data, renovation interval data, power outage organization data, construction process data, site constraint data, labor, material and equipment consumption samples, and historical settlement data for the target technological upgrading project; Based on the equipment attribute data, construction process data, and on-site constraint data, a target process and method map is constructed to associate equipment, process, resource, and constraint. The target process and method map is then compared with the benchmark quota map to obtain a set of standard processes, a set of processes with consumption to be revised, a set of processes with measures costs to be quantified, a set of special processes, and a set of unforeseen cost events. For the set of processes to be revised based on the consumption amount, a process-resource consumption matrix is ​​established. For the material, human and machine consumption samples from different sources, the unit is unified, the sample integrity is checked, outlier is handled, and the quality weight is determined to obtain the effective consumption amount sample. Based on the effective consumption sample, labor consumption benchmarks, material consumption benchmarks, and machinery consumption benchmarks for each process are generated, and revised quota base prices are formed by combining the corresponding resource unit prices. For the set of procedures to be quantified for the aforementioned measures, multiple entry and exit parameters are determined based on the spatial distribution of the renovation intervals and the division of power outage stages, and the physical quantity cost of safety protection is generated based on the material, length, and number of uses of the external protective facilities in the construction area. The set of special process procedures is matched with a preset special process module library to generate a corresponding modular cost list. The set of unforeseen cost events is routed to the contract estimate and visa settlement path or the professional engineering provisional estimate and actual settlement path according to the cause of the cost and the type of settlement voucher. The revised quota base price, the calculation results of the measure fee, the modular cost list and the handling results of unforeseen expenses are merged into a candidate pricing standard package. The candidate pricing standard package is checked for deviation using historical settlement data or actual on-site costs, and a pricing standard version is output based on the check results. Then, a corresponding engineering physical resource scheduling instruction is generated based on the pricing standard version to drive the front-end material management system to perform automated preparation and allocation of physical materials and mechanical equipment.

2. The intelligent calculation method for quota consumption of 500kV substation technical renovation projects according to claim 1, characterized in that: The target process diagram includes equipment nodes, process nodes, resource nodes, and constraint nodes. The equipment nodes record at least the equipment type, voltage level, interval type, and installation location. The process nodes record at least the process name, sequence, applicable equipment, and whether it falls within a power outage window. The resource nodes record at least the labor type, material specifications, machinery type, and unit of measurement. The constraint nodes record at least the proximity to electricity, work space, power outage stage, safety isolation requirements, and equipment supply method. Directed edges record the relationships between equipment and processes, processes and resources, and processes and constraints.

3. The intelligent calculation method for quota consumption of 500kV substation technical renovation projects according to claim 1, characterized in that: Benchmark process sub-graphs are extracted from the benchmark quota map according to equipment type and voltage level; a sub-graph isomorphism algorithm is used to match nodes and directed edge order relationships between the target process map and the benchmark process sub-graph, and resource coverage matching is performed by calculating the cosine similarity of node attribute feature vectors; processes in the target process map that can be completely covered by the benchmark process sub-graph are classified into the standard process set; processes with the same resource type but consumption levels exceeding the preset deviation range are classified into the consumption amount to be revised process set; processes caused by on-site safety or construction organization conditions and suitable for calculation according to rate or physical quantity are classified into the measure cost to be quantified process set; processes that cannot be covered by existing quota work content and can be reused are classified into the special process set.

4. The intelligent calculation method for quota consumption of 500kV substation technical renovation projects according to claim 1, characterized in that: The outlier handling includes calculating the median and dispersion scale of samples based on the same equipment type, the same process, and the same resource category, and marking samples that deviate from the median by more than a preset dispersion threshold as samples to be verified; the quality weight is calculated by a preset evaluation function, which is obtained by multiplying the sample's data completeness score, on-site measurement reliability score, process matching score, and project representativeness score by preset weight coefficients and then summing them, and performing cross-consistency verification between at least two independent data sources.

5. The intelligent calculation method for quota consumption of 500kV substation technical renovation projects according to claim 1, characterized in that: The effective consumption samples for each process are weighted and aggregated according to the aforementioned quality weights to obtain the unit engineering quantity consumption benchmarks for labor, materials, and machinery; a hierarchical consumption template is formed based on equipment type, rated voltage, and interval type. The unit project quantity consumption benchmark is multiplied by the corresponding labor unit price, material unit price and machine shift unit price respectively, and then summarized to form a revised quota base price that can be traced back to the process and sample source.

6. The intelligent calculation method for quota consumption of 500kV substation technical renovation projects according to claim 1, characterized in that: The parameters for multiple entry and exit are determined according to the number of intervals where the renovation content is located, the combination of intervals that can be shut down simultaneously, and the number of construction stages. When multiple renovation intervals cannot be shut down simultaneously, each independent power outage construction stage is corresponding to one entry and exit pricing unit. The cost of physical safety protection materials is calculated separately according to the length, material unit price, turnover times, and loss coefficient of various safety fences or protective facilities outside the construction area, and is listed separately from the basic safety and civilized construction cost.

7. The intelligent calculation method for quota consumption of 500kV substation technical renovation projects according to claim 1, characterized in that: The pre-set special process module library includes at least the following modules: GIS equipment installation adjacent gas chamber half-pressure reduction module, existing facility finished product protection module, adjacent equipment electrical testing module, withstand voltage test lead removal and restoration module, mixed gas on-site mixing module, old equipment transportation module, equipment operation platform removal and installation module, and cable phased construction repeated fireproof sealing module; each module stores trigger conditions, work content boundaries, resource composition, pricing method, voucher requirements, and mutual exclusion or dependency relationships with other modules.

8. The intelligent calculation method for quota consumption of 500kV substation technical renovation projects according to claim 1, characterized in that: The set of unforeseen cost events includes work stoppages or idle time caused by reasons other than the construction unit, secondary transportation of equipment and materials, preliminary exploration and cable surveying, waste gas recovery and disposal, and cooperation from equipment manufacturers. Among these, events that can be verified by the increased man-days and machine shift records are routed to the contract estimate and visa settlement path, while events that can be verified by the lease contract, technical service contract, invoice, or confirmed supplier settlement voucher are routed to the professional engineering provisional estimate and actual settlement path. The deviation verification determines whether to update the consumption benchmark, module parameters, or routing rules based on the relative deviation between the candidate pricing result and the actual settlement result.

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