Electrical quotation linkage auditing method and system based on large model

Abstract

The application provides a kind of based on big model's electrical quotation linkage auditing method and system, the method includes: based on the topological connection relationship of electrical engineering and electrical equipment attribute, project dependency graph is constructed, based on the node path sequence in project dependency graph and electrical constraint, generates electrical logic thinking chain;Based on big model using electrical logic thinking chain will device entry be shot to the electrical node of project dependency graph, obtain electrical mapping association chain;Based on electrical mapping association chain and electrical logic thinking chain traverses each electrical branch in project dependency graph, checks the logical relationship of electrical parameter between adjacent electrical nodes, obtains electrical logic result;Based on electrical logic result and the node mapping state of each electrical node in electrical mapping association chain carries out electrical abnormality analysis, obtains missing item equipment, based on the preset electrical quotation knowledge base is completed to missing item equipment, obtains electrical quotation auditing report.The application improves the accuracy of electrical quotation auditing.

Description

Technical Field

[0001] This invention relates to the field of computer technology, and in particular to a method and system for joint review of electrical quotations based on a large model. Background Technology

[0002] In the field of bidding and cost control for electrical engineering projects, electrical quotation review is a crucial step in ensuring the rationality of the project. Current methods for reviewing electrical quotations primarily rely on manual experience combined with item-by-item verification using spreadsheets (such as Excel). Specifically, reviewers typically manually check the unit price, quantity, and total price calculations for each electrical item based on design drawings and the bill of quantities, and mark any abnormal prices by referring to historical databases or market guidance prices.

[0003] However, existing methods struggle to effectively identify hidden omissions caused by a lack of logical dependencies in electrical systems. For example, in a complex power distribution system, the selection of the main circuit breaker often depends on the sum of downstream loads and the simultaneity factor, while the cable cross-sectional area depends on the circuit breaker's rated current and the installation environment. Existing manual or simple spreadsheet review methods typically treat each item in the quotation as an independent entity for price comparison, ignoring the physical connection logic between electrical components and the matching logic of electrical parameters. If a critical intermediate distribution box is omitted from the quotation, or the cable specifications do not match the upstream switch, existing methods may struggle to detect such structural logical errors because the individual prices are within a reasonable market range. This review blind spot caused by the lack of system-level logical correlation analysis reduces the accuracy of electrical quotation review results and may lead to increased change orders or safety hazards during subsequent construction. Summary of the Invention

[0004] This invention provides a method and system for joint review of electrical quotations based on a large model, aiming to solve the technical problem in the background art of difficulty in effectively identifying hidden omissions caused by the lack of logical dependencies in electrical systems, and to improve the accuracy of electrical quotation review.

[0005] In a first aspect, the present invention provides a method for joint review of electrical quotations based on a large model, including: Based on the topological connections and electrical equipment attributes of electrical engineering, a project dependency graph is constructed, and an electrical logic thought chain is generated based on the node path sequence and electrical constraints in the project dependency graph. Based on the large model, the electrical logic thinking chain is used to map the equipment items in the electrical quotation list to be reviewed to the corresponding electrical nodes in the project dependency graph, thus obtaining the electrical mapping association chain. Based on the electrical mapping association chain and the electrical logic thinking chain, traverse each electrical branch in the project dependency graph, check the logical relationship between electrical parameters between adjacent electrical nodes on the electrical branch, and obtain the electrical logic result; Based on the electrical logic results and the node mapping status of each electrical node in the electrical mapping association chain, an electrical anomaly analysis is performed to identify missing equipment. Then, based on a preset electrical quotation knowledge base, the missing equipment is supplemented to obtain an electrical quotation review report.

[0006] Secondly, the present invention also provides an electrical quotation linkage review system based on a large model, for implementing the electrical quotation linkage review method based on a large model as described in the first aspect; the electrical quotation linkage review system based on a large model includes: The electrical dependency analysis module is used to construct a project dependency graph based on the topological connection relationship and electrical equipment attributes of electrical engineering, and to generate an electrical logic chain based on the node path sequence and electrical constraints in the project dependency graph. The electrical mapping association analysis module is used to map the equipment items in the electrical quotation list to be reviewed to the corresponding electrical nodes in the project dependency graph based on the electrical logic thinking chain of the large model, so as to obtain the electrical mapping association chain. The electrical branch logic analysis module is used to traverse each electrical branch in the project dependency graph based on the electrical mapping association chain and the electrical logic thinking chain, check the logical relationship of electrical parameters between adjacent electrical nodes on the electrical branch, and obtain the electrical logic result; The missing equipment completion module is used to perform electrical anomaly analysis based on the electrical logic results and the node mapping status of each electrical node in the electrical mapping association chain to obtain missing equipment, and to complete the missing equipment based on a preset electrical quotation knowledge base to obtain an electrical quotation review report.

[0007] Thirdly, the present invention also provides an electronic device, comprising: a memory for storing a computer program; and a processor for reading and executing the computer program, thereby realizing the electrical quotation linkage review method based on a large model as described above.

[0008] Fourthly, the present invention also provides a non-transitory computer-readable storage medium storing a computer program, which, when executed by a processor, implements the electrical quotation linkage review method based on a large model as described above.

[0009] Fifthly, the present invention also provides a computer program product, including a computer program that, when executed by a processor, implements the electrical quotation linkage review method based on a large model as described above.

[0010] The electrical quotation linkage review method based on a large model provided in this invention constructs a project dependency graph containing electrical nodes and electrical connection edges between nodes based on the topological connection relationship of electrical engineering and the attributes of electrical equipment. It then combines the node path sequence and electrical constraints of the graph to generate an electrical logic thinking chain representing the reasoning path of electrical parameter transmission from the power supply end to the load end, resulting in a structured logical reasoning system that fully reflects the physical connection logic and parameter matching logic of electrical equipment. Using this structured logical reasoning system as the review basis, the large model, relying on the electrical logic thinking chain, maps the equipment items in the quotation list to be reviewed to the corresponding electrical nodes in the project dependency graph, obtaining an electrical mapping association chain connecting the quotation list items and the system electrical nodes. This achieves precise association and binding between scattered quotation list items and the overall electrical system logical architecture, breaking the limitation of independent review of single items in existing technologies. Based on the obtained electrical mapping association chain and electrical logic thinking chain, each electrical branch of the project dependency graph is traversed one by one, verifying the electrical parameter logical relationship between adjacent nodes of the branch, obtaining electrical logic results including branch logic consistency and inconsistency, and accurately identifying hidden problem nodes such as equipment parameter mismatch and structural logic conflict. Based on the logical inconsistencies in the electrical logic results and the node mapping status of the electrical mapping association chain, electrical anomaly analysis is performed to accurately locate the missing equipment caused by the lack of system logic. Then, combined with the preset electrical quotation knowledge base, the missing equipment is completed and an electrical quotation review report is generated. This solves the technical problem in the background technology of being unable to effectively identify the hidden omissions caused by the lack of logical dependencies in the electrical system, and improves the accuracy of electrical quotation review. Attached Figure Description

[0011] Figure 1 This is a flowchart illustrating the electrical quotation linkage review method based on a large model provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the electrical quotation linkage review system based on a large model provided in an embodiment of the present invention; Figure 3 An embodiment diagram of the electronic device provided in this invention; Figure 4 An embodiment diagram of a computer-readable storage medium provided in accordance with the present invention. Detailed Implementation

[0012] 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.

[0013] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0014] In the description of this invention, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this invention is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed herein.

[0015] Optionally, see Figure 1 , Figure 1 This is a flowchart illustrating the electrical quotation linkage review method based on a large model provided by the present invention. In this embodiment of the invention, the executing entity of the electrical quotation linkage review method based on a large model is the quotation review system. Therefore, the electrical quotation linkage review method based on a large model includes: Step 10: Based on the topological connections and electrical equipment attributes of electrical engineering, construct a project dependency graph, and generate an electrical logic chain based on the node path sequence and electrical constraints in the project dependency graph.

[0016] Optionally, the quotation review system obtains electrical engineering design drawings and bill of quantities, extracts the topological connection relationship of electrical equipment from the electrical engineering design drawings, and extracts the attributes of electrical equipment from the bill of quantities.

[0017] Topology refers to the physical connection sequence and electrical connection path of electrical equipment in an electrical system, including the power supply path from the power source to the load, the hierarchical relationship between different levels of power distribution equipment, and the laying direction of cable lines. The quotation review system identifies the connection relationships between various electrical devices by analyzing the system diagrams and floor plans in the electrical engineering design drawings.

[0018] Electrical equipment attributes refer to the electrical parameters and technical specifications of electrical equipment, including rated current, rated voltage, rated power, cable cross-sectional area, laying environment, and simultaneity factor. The quotation review system extracts the corresponding attribute information for each piece of electrical equipment from the bill of quantities.

[0019] The quotation review system abstracts the extracted electrical equipment into electrical nodes and the topological connections between electrical equipment into electrical connection edges, constructing a project dependency graph. The project dependency graph is represented in the form of a directed graph, where electrical nodes represent electrical equipment, electrical connection edges represent the electrical connections between electrical equipment, and the direction of the electrical connection edges represents the direction of power transmission, i.e., from the power source to the load.

[0020] For example, taking the power distribution system of a commercial complex as an example, after obtaining the electrical engineering design drawings and bill of quantities for the power distribution system, the following processing is performed: The electrical engineering design drawings identify that the power distribution system includes a power inlet point, main distribution cabinet, main circuit breaker, intermediate distribution boxes, terminal distribution boxes, and multiple load devices. The extracted topology connection relationship is as follows: The power inlet point is connected to the inlet terminal of the main distribution cabinet via an inlet cable. The main distribution cabinet is equipped with a main circuit breaker. The outlet terminal of the main circuit breaker is connected to the inlet terminal of the intermediate distribution box via a main cable. The outlet terminal of the intermediate distribution box is connected to the inlet terminal of the terminal distribution box via a branch cable. The outlet terminal of the terminal distribution box is connected to each load device via a terminal cable.

[0021] Extract the attributes of each electrical device from the bill of quantities: the rated current of the main circuit breaker is 630 amps; the cross-sectional area of ​​the main cable is 185 square millimeters and it is laid in a cable tray; the rated current of the intermediate distribution box is 400 amps; the cross-sectional area of ​​the branch cable is 95 square millimeters and it is laid in a conduit; the rated current of the terminal distribution box is 160 amps; and the total rated power of all load devices is 85 kilowatts. Abstract the power inlet point, main distribution cabinet, main circuit breaker, intermediate distribution box, terminal distribution box, and each load device as electrical nodes; and abstract the incoming cable, main cable, branch cable, and terminal cable as electrical connection edges to construct a project dependency graph.

[0022] The electrical connection directions of the project dependency diagram are as follows: the power supply line point points to the main distribution cabinet, the main distribution cabinet points to the main circuit breaker, the main circuit breaker points to the intermediate distribution box, the intermediate distribution box points to the terminal distribution box, and the terminal distribution box points to each load device.

[0023] The quotation review system generates an electrical logic chain based on the node path sequence and electrical constraints in the project dependency graph, as detailed in steps 101 to 104. The node path sequence refers to the order of electrical nodes from the power source to the load. Electrical constraints refer to the electrical parameter matching rules and physical connection rules that electrical equipment must meet. The electrical logic chain represents the electrical logic reasoning path for the transmission of electrical parameters from the power source to the load.

[0024] Step 20: Based on the large model, use the electrical logic thinking chain to map the equipment items in the electrical quotation list to be reviewed to the corresponding electrical nodes in the project dependency graph to obtain the electrical mapping association chain.

[0025] Optionally, the quotation review system obtains a list of electrical quotations to be reviewed. This list contains multiple equipment items, each including equipment name, model, specifications, quantity, and unit price. The quotation review system inputs this list into a large-scale model, which is a general-purpose language model in this field; the specific training process is not detailed here. Based on the electrical logic chain, the large-scale model maps each equipment item in the list to be reviewed to the corresponding electrical nodes in the project dependency graph. Specifically, the large-scale model performs semantic parsing on the equipment items in the list, extracting the equipment name, model, and specifications.

[0026] The large model matches the device name, device model and device specifications of the device item with the electrical device attributes of each electrical node in the project dependency graph based on the electrical node attributes defined in the electrical logic thinking chain, and determines the electrical node corresponding to each device item.

[0027] During the matching process, the large model determines the equipment type based on the equipment name, and then determines the specific parameters of the equipment based on the equipment model and specifications. The specific parameters of the equipment are compared with the electrical equipment attributes of the electrical nodes. When the specific parameters of the equipment match the electrical equipment attributes of the electrical nodes, a mapping relationship is established between the equipment item and the electrical node. The quotation review system combines the mapping relationships of all equipment items in the electrical quotation list to be reviewed into an electrical mapping association chain. Therefore, in this embodiment of the invention, the electrical mapping association chain refers to the set of correspondences between equipment items in the electrical quotation list to be reviewed and electrical nodes in the project dependency graph, representing the logical position of each equipment item in the electrical system.

[0028] For example, suppose the electrical quotation list to be reviewed includes the following equipment items: Equipment name: main circuit breaker; Equipment model: a certain model; Equipment specification: rated current 630 amps; Quantity: 1 unit; Unit price: a certain amount of yuan; Equipment name: power cable; Equipment model: a certain model; Equipment specification: cross-sectional area 185 square millimeters; Length: a certain number of meters; Unit price: a certain amount of yuan per meter; Equipment name: power cable; Equipment model: a certain model; Equipment specification: cross-sectional area 95 square millimeters; Length: a certain number of meters; Unit price: a certain amount of yuan per meter; Equipment name: terminal distribution box; Equipment model: a certain model; Equipment specification: rated current 160 amps; Quantity: 1 unit; Unit price: a certain amount of yuan.

[0029] The quotation review system inputs the above-mentioned list of electrical quotations to be reviewed into the large model, which then maps them according to the electrical logic chain. The large model analyzes the equipment entry named "Main Circuit Breaker," extracts its rated current of 630 amps, and locates the electrical node of the main circuit breaker with a rated current of 630 amps in the project dependency graph, establishing a mapping relationship. The large model analyzes the equipment entry named "Power Cable" with a cross-sectional area of ​​185 square millimeters, locates the electrical connection edge of the main cable with a cross-sectional area of ​​185 square millimeters and its laying environment is cable tray in the project dependency graph, and establishes a mapping relationship. The large model analyzes the equipment entry named "Power Cable" with a cross-sectional area of ​​95 square millimeters, locates the electrical connection edge of the branch cable with a cross-sectional area of ​​95 square millimeters and its laying environment is conduit in the project dependency graph, and establishes a mapping relationship. The large model analyzes the equipment entry named "Terminal Distribution Box," extracts its rated current of 160 amps, locates the electrical node of the terminal distribution box with a rated current of 160 amps in the project dependency graph, and establishes a mapping relationship.

[0030] All the above mapping relationships are combined to form an electrical mapping association chain, which records the correspondence between each equipment item in the electrical quotation list to be reviewed and the electrical nodes in the project dependency graph.

[0031] Step 30: Based on the electrical mapping association chain and the electrical logic thinking chain, traverse each electrical branch in the project dependency graph, check the logical relationship of electrical parameters between adjacent electrical nodes on the electrical branch, and obtain the electrical logic result.

[0032] Optionally, the quotation review system traverses each electrical branch in the project dependency graph based on the electrical mapping association chain and the electrical logic thinking chain, checks the logical relationship of electrical parameters between adjacent electrical nodes on the electrical branch, and obtains the electrical logic result, as detailed in steps 301 to 308. An electrical branch refers to a complete electrical connection path from the power source to the load in the project dependency graph. The electrical logic result includes both logical inconsistencies and logical consistency of electrical branches.

[0033] Step 40: Based on the electrical logic results and the node mapping status of each electrical node in the electrical mapping association chain, perform electrical anomaly analysis to obtain the missing equipment, and complete the missing equipment based on the preset electrical quotation knowledge base to obtain the electrical quotation review report.

[0034] Optionally, the quotation review system performs electrical anomaly analysis based on the electrical logic results of electrical branches with inconsistent electrical branch logic and the node mapping status of each electrical node in the electrical mapping association chain to identify missing equipment, as detailed in steps 401 to 406. Missing equipment refers to electrical equipment that is missing from the electrical quotation list but is essential to the electrical system.

[0035] The pre-set electrical quotation knowledge base refers to a database that stores standard specifications, market reference prices, selection calculation rules, and typical engineering configurations for various electrical equipment. For each missing piece of equipment identified, the quotation review system queries the pre-set electrical quotation knowledge base to obtain the standard specifications and market reference prices of the missing equipment, generates a complete equipment entry, and integrates the completed equipment entry into the electrical quotation review report.

[0036] The quotation review system determines the technical requirements that the omitted equipment must meet based on its location in the project dependency graph, the electrical parameters of adjacent electrical nodes, and the electrical constraints defined in the electrical logic chain. The system then searches a pre-set electrical quotation knowledge base for matching electrical equipment standard specifications based on these technical requirements and calculates the budget price for the omitted equipment based on the retrieved standard specifications and market reference prices.

[0037] The quotation review system integrates the completed equipment items and electrical logic results to generate an electrical quotation review report. The electrical quotation review report includes, but is not limited to, the original list of electrical quotations to be reviewed, the completed equipment items, detailed information on inconsistencies in electrical branch logic, and the review conclusions.

[0038] For example, suppose that in step 30, the quotation review system detects a logical inconsistency between the electrical branch between the main cable electrical connection edge and the intermediate distribution box electrical node. Specifically, the electrical mapping association chain does not find the equipment entry corresponding to the intermediate distribution box electrical node, and the current carrying capacity of the main cable electrical connection edge needs to match the rated current of the downstream power distribution equipment.

[0039] The quotation review system performed an electrical anomaly analysis and found that the intermediate distribution box was an omitted item. It then queried the preset electrical quotation knowledge base and, based on the attribute requirements of the electrical nodes of the intermediate distribution box in the project dependency graph, namely, a rated current of 400 amps, a main cable with an inlet cross-sectional area of ​​185 square millimeters, and a branch cable with an outlet cross-sectional area of ​​95 square millimeters, it searched the preset electrical quotation knowledge base for the standard specifications of the intermediate distribution box that meet the above requirements.

[0040] For example, the preset electrical quotation knowledge base returns the following matching result: an intermediate distribution box with a rated current of 400 amps, including one 400 amp incoming switch, four 95 amp outgoing switches, and the box dimensions and protection level meet the transition requirements for cable tray and conduit installation. The market reference price is several yuan. The quotation review system generates a complete equipment entry based on this standard specification and market reference price. The equipment name is "Intermediate Distribution Box," the equipment specifications are a rated current of 400 amps, including one 400 amp incoming switch and four 95 amp outgoing switches, the quantity is one, and the unit price is the market reference price. The quotation review system integrates the above-mentioned completed intermediate distribution box equipment entry into the electrical quotation review report. The electrical quotation review report also records the omission of intermediate distribution boxes in the original electrical quotation list to be reviewed, and indicates that the basis for supplementing the missing equipment is the standard specification and market reference price in the preset electrical quotation knowledge base.

[0041] The embodiments of the present invention solve the technical problem of difficulty in effectively identifying hidden omissions caused by the lack of logical dependencies in electrical systems, and improve the accuracy of electrical quotation review.

[0042] Optionally, the processes of steps 101 to 104 include: Step 101: Traverse each electrical node in the project dependency graph to obtain the electrical node sequence from the first electrical node at the power supply end to the second electrical node at the load end and its corresponding connection edge sequence, and construct the electrical connection path based on the electrical node sequence and its corresponding connection edge sequence.

[0043] Optionally, the quotation review system locates the first electrical node at the power supply end and the second electrical node at the load end in the project dependency graph. Starting from the first electrical node, it visits adjacent electrical nodes sequentially along the power transmission direction indicated by the electrical connection edges until it reaches the second electrical node. During this traversal, all traversed electrical nodes are recorded in the order of visit, forming an electrical node sequence. At the same time, all electrical connection edges connecting these adjacent electrical nodes are recorded, forming a connection edge sequence.

[0044] The quotation review system alternately combines electrical node sequences and connection edge sequences according to the physical order of power transmission to construct electrical connectivity paths. An electrical connectivity path represents the complete physical channel and topological orientation of power transmission from the power source to a specific load.

[0045] For example, by traversing the project dependency graph, the first electrical node at the power supply end is determined as the power inlet point, and the second electrical node at the load end is each load device. Starting from the power inlet point, along the direction of the electrical connection edges, the main distribution cabinet, main circuit breaker, intermediate distribution box, and terminal distribution box are visited in sequence, finally reaching the load device. The resulting electrical node sequence is: power inlet point, main distribution cabinet, main circuit breaker, intermediate distribution box, terminal distribution box, load device. Simultaneously, the connection edge sequence is recorded as: incoming cable, main cable, branch cable, terminal cable. Combining the above electrical node sequence and connection edge sequence, an electrical connection path is constructed.

[0046] Step 102: Using electrical nodes in the electrical connection path whose equipment type is transformer or isolator as target nodes, perform functional domain segmentation on the electrical connection path based on the target nodes to obtain the same voltage functional domain segment.

[0047] Optionally, the quotation review system checks the equipment type of each electrical node in the electrical connection path, and when the equipment type is identified as a transformer or isolator, the electrical node is identified as the target node.

[0048] Since transformers are used to change voltage levels and isolators are used to electrically isolate different circuit sections, the target node in the electrical system has the physical function of voltage conversion or electrical isolation. Therefore, the quotation review system uses the target node as the cutting point to divide the electrical connection path into multiple independent segments. The electrical nodes within each segment are at the same voltage level and belong to the same electrical circuit. These segments are defined as segments of the same voltage functional domain.

[0049] For example, suppose the power distribution system adds an electrical node of type transformer between the power supply inlet and the main distribution cabinet to step down the 10 kV high voltage to 380 V low voltage. When traversing the electrical connection path, this transformer is identified as the target node.

[0050] Using the transformer as the cutting point, the electrical connection path is divided into two functional domain segments of the same voltage: the first functional domain segment includes the power supply line point and the high-voltage side of the transformer, which belongs to the 10 kV high-voltage functional domain; the second functional domain segment includes the low-voltage side of the transformer, the main distribution cabinet, the main circuit breaker, the intermediate distribution box, the terminal distribution box, and the load equipment, which belongs to the 380 V low-voltage functional domain.

[0051] Step 103: Based on the direction of energy flow from the power source to the load, connect the node sequences in each functional domain segment in the upstream and downstream directions to obtain the causal time sequence path segment.

[0052] Optionally, the quotation review system extracts the electrical node sequence for each voltage-equivalent functional domain segment. Based on the energy flow direction from the power source to the load, it determines the upstream and downstream relationships of each electrical node within the segment, with the electrical node closer to the power source being the upstream node and the electrical node closer to the load being the downstream node. Following the order from upstream to downstream nodes, the node sequence within the voltage-equivalent functional domain segment is directionally connected to establish a causal logical relationship where changes in the electrical parameters of upstream nodes cause changes in the electrical parameters of downstream nodes, resulting in a causal time-series path segment. This causal time-series path segment characterizes the temporal causal relationship of electrical parameters propagating along the energy flow direction within the voltage-equivalent functional domain segment.

[0053] For example, in the second functional domain segment (380V low-voltage functional domain), the electrical node sequence is extracted as follows: transformer low-voltage side, main distribution cabinet, main circuit breaker, intermediate distribution box, terminal distribution box, and load equipment. Based on the energy flow direction, the transformer low-voltage side is determined as the upstream node, and the load equipment as the downstream node. Connecting upstream and downstream in the order from the transformer low-voltage side to the main distribution cabinet, then to the main circuit breaker, intermediate distribution box, terminal distribution box, and finally to the load equipment, it is established that changes in the rated current parameter of the main circuit breaker causally affect the parameter selection of the intermediate distribution box and branch cables, thus obtaining the causal time-series path segment of this 380V low-voltage functional domain.

[0054] Step 104: Based on the port type characteristics and electrical constraints of the ports corresponding to the connecting edges between adjacent nodes in the causal time-series path segment, generate an electrical logic thought chain.

[0055] Optionally, the quotation review system generates an electrical logic chain based on the port type characteristics and electrical constraints of the ports corresponding to the connecting edges between adjacent nodes in the causal time sequence path segment, as described in steps 1041 to 1044.

[0056] This invention constructs electrical connectivity paths by traversing the graph, uses transformers or isolators to segment functional domains to obtain voltage-level functional domain segments, and establishes causal time-series path segments based on energy flow direction. Finally, it combines port type characteristics and electrical constraints to generate an electrical logic chain, transforming the physical-level electrical topology connections into a structured logical reasoning system that includes voltage level division, energy flow direction, and parameter causal transmission relationships. This allows the electrical logic chain to accurately characterize the electrical parameter matching logic and physical connection dependencies from upstream power supply to downstream load within the same voltage domain. This provides support for subsequently mapping scattered quotation items to system nodes and performing branch-level logical verification, overcoming the defect of ignoring deep logical dependencies in electrical systems, improving the accuracy of identifying hidden omissions, and thus improving the accuracy of electrical quotation review.

[0057] Optionally, the process of steps 1041 to 1044 includes: Step 1041: Based on the port type characteristics of the ports corresponding to the ports of the connecting edges between adjacent nodes in the causal time-series path segment and the electrical interface compatibility constraints indicated by the electrical constraints, perform compatibility matching, associate the adjacent nodes and their connecting edges that satisfy the compatibility matching as local logical units, and generate a sequence of local logical units.

[0058] Optionally, port type characteristics refer to the physical interface form and material properties of electrical equipment or cable ends, such as copper busbar interfaces, terminal block interfaces, or cable crimp interfaces. Electrical interface compatibility constraints refer to the matching rules specified in the electrical system design code that allow connections between different physical interfaces, such as direct connections of the same material or connections via specific transition fittings. The quotation review system extracts the port type characteristics of adjacent electrical nodes and their connecting edges in the causal time sequence path segment and compares them with the electrical interface compatibility constraints. When the port type characteristics of adjacent nodes meet the electrical interface compatibility constraints, the adjacent node and its connecting edge are associated as a local logical unit. The quotation review system arranges all generated local logical units according to the chronological order of the causal time sequence path segments, generating a local logical unit sequence.

[0059] For example, extract the port type characteristics of the main circuit breaker outgoing terminal and the main cable incoming terminal. The port type characteristic of the main circuit breaker outgoing terminal is a copper busbar interface, and the port type characteristic of the main cable incoming terminal is a copper terminal block interface. Query the electrical interface compatibility constraints to confirm that the copper busbar interface and the copper terminal block interface are direct connections of the same material, satisfying the compatibility matching conditions. Associate the main circuit breaker, the main cable, and their connections as a local logical unit, and generate a sequence of local logical units containing this local logical unit according to causal timing.

[0060] Step 1042: Based on the preset position of the protection device node in the local logic unit sequence, establish the direct protection membership relationship between the protection device node and the adjacent downstream unit, as well as the indirect protection membership relationship between the protection device node and the subsequent units up to the unit before the next protection device node, to obtain the hierarchical protection logic sequence.

[0061] Optionally, a protection device node refers to an electrical equipment node in an electrical system that has overload, short-circuit, or leakage protection functions, such as a circuit breaker or fuse. Direct protection affiliation refers to the control and protection logic relationship between a protection device node and its directly connected downstream electrical equipment that is not protected by other protection device nodes. Indirect protection affiliation refers to the protection logic relationship between a protection device node as backup protection and all downstream electrical equipment that passes through other protection device nodes. The quotation review system identifies the protection device node in the local logic unit sequence and determines its location. It establishes a direct protection affiliation relationship between this protection device node and the local logic unit immediately downstream of it that has no other protection device nodes involved. Simultaneously, it establishes an indirect protection affiliation relationship between this protection device node and all subsequent local logic units up to the next protection device node, resulting in a hierarchical protection logic sequence.

[0062] For example, the main circuit breaker is identified as a protection device node in the local logic unit sequence. The immediate downstream unit of the main circuit breaker is the local logic unit containing the intermediate distribution box, and there are no other protection devices between them. A direct protection affiliation is established between the main circuit breaker and the intermediate distribution box. The units following the main circuit breaker include the local logic units containing the terminal distribution box and the load equipment. Before reaching the terminal circuit breaker (the next protection device node) in the terminal distribution box, an indirect protection affiliation is established between the main circuit breaker and these subsequent units. This results in a hierarchical protection logic sequence that includes both direct and indirect protection relationships.

[0063] Step 1043: Based on the grounding terminal status attributes of each local logic unit in the hierarchical protection logic sequence and the grounding connectivity constraints indicated by the electrical constraints, determine the physical grounding connectivity between adjacent local logic units to obtain the grounding connectivity determination result. The grounding connectivity determination result includes grounding connectivity and grounding disconnection.

[0064] Optionally, the grounding terminal status attribute refers to the presence and connection status of the terminals used to connect the protective grounding wire in the local logic unit, such as whether a protective grounding terminal is available and whether the protective grounding terminal is physically connected. Grounding continuity constraint refers to the specification that the protective grounding wire must remain continuously conductive as required by the grounding type of the electrical system (such as a three-phase five-wire grounding system).

[0065] The quotation review system obtains the grounding terminal status attributes of each local logic unit in the hierarchical protection logic sequence and compares them with the grounding connectivity constraints. If adjacent local logic units all have protective grounding terminals and are in a physically connected state, satisfying the grounding connectivity constraints, their grounding physical connectivity is determined to be grounding connected; if any unit in an adjacent local logic unit lacks a protective grounding terminal or is not physically connected, not satisfying the grounding connectivity constraints, its grounding physical connectivity is determined to be grounding disconnected.

[0066] For example, the status attributes of the grounding terminals of the local logic unit where the main cable is located are obtained to confirm that the main cable contains an independent protective grounding wire and that the protective grounding terminals at both ends are in a physically connected state. Combined with the grounding continuity constraint that requires the protective grounding wire to be continuously conductive in a three-phase five-wire grounding system, the physical grounding connectivity between the local logic unit where the main circuit breaker is located and the local logic unit where the intermediate distribution box is located is determined to be grounding connectivity.

[0067] Step 1044: Establish the ground current logic link of adjacent units with ground connection and the ground current logic breakpoint of adjacent units with ground disconnection to obtain the ground current logic sequence. Then, integrate the ground current logic sequence with the hierarchical protection logic sequence to obtain the electrical logic thinking chain.

[0068] Optionally, a ground current logic link refers to a logical connection relationship that allows the protective grounding current to flow smoothly between adjacent local logic units. A ground current logic breakpoint refers to a logical interruption node where the protective grounding current cannot flow between adjacent local logic units. Based on the ground connectivity determination result, the quotation review system establishes ground current logic links for adjacent local logic units determined to be ground connected and establishes ground current logic breakpoints for adjacent local logic units determined to be ground disconnected, arranging them in sequence to obtain a ground current logic sequence.

[0069] The quotation review system integrates the grounding current logic sequence and the hierarchical protection logic sequence into a data structure, merging the grounding logic and protection logic to ultimately obtain the electrical logic thought chain.

[0070] This invention constructs a local logic unit sequence by matching port type characteristics with electrical interface compatibility constraints, establishing the rationality of physical connections between devices. Then, based on the location of protection device nodes, it establishes direct and indirect protection hierarchical relationships to form a hierarchical protection logic sequence, clarifying the hierarchical architecture of system-level overload and short-circuit protection. Simultaneously, it combines grounding terminal status attributes and grounding connectivity constraints to determine grounding physical connectivity and construct a grounding current logic sequence. Finally, it deeply integrates protection logic and grounding logic to generate an electrical logic thinking chain. This allows the electrical logic thinking chain to comprehensively and deeply characterize the rationality of physical connections, the selectivity of protection actions, and the reliability of grounding safety in the electrical system. This breaks the limitation of auditing focusing only on single-item prices and improves the accuracy of electrical quotation audits at the system-level logical dependency level.

[0071] Optionally, the process of steps 301 to 308 includes: Step 301: Based on the mapping correspondence between equipment entries in the electrical mapping association chain and electrical nodes in the project dependency graph, extract the rated voltage level, phase sequence wiring type and node functional attributes of each electrical node on the electrical branch along the causal time sequence path segment in the electrical logic thinking chain.

[0072] Optionally, an electrical branch refers to an electrical connection path from the power source to the load in the project dependency diagram. Rated voltage level refers to the normal operating voltage value specified in the design of electrical equipment. Phase sequence wiring type refers to the combination configuration of phase conductors, neutral conductors, and protective grounding conductors in the electrical system, such as a three-phase four-wire system or a three-phase five-wire system. Node functional attributes refer to the specific physical role that an electrical node plays in the electrical system, such as power supply, power transmission, circuit protection, or load consumption. The quotation review system reads the above attribute data of each electrical node one by one on the causal time sequence path segment according to the mapping correspondence.

[0073] For example, along the causal time-series path segment of the 380V low-voltage functional domain, the attributes of the main circuit breaker, main cable, and intermediate distribution box are extracted. The extracted attributes are: the rated voltage level of the main circuit breaker is 380V, the phase sequence wiring type is three-phase five-wire, and the node functional attribute is circuit protection; the rated voltage level of the main cable is 380V, the phase sequence wiring type is three-phase five-wire, and the node functional attribute is power transmission; the rated voltage level of the intermediate distribution box is 380V, the phase sequence wiring type is three-phase five-wire, and the node functional attribute is power distribution.

[0074] Step 303: Traverse two adjacent electrical nodes and determine whether the rated voltage level of the preceding electrical node is consistent with the rated voltage level of the following electrical node.

[0075] Optionally, a front-end electrical node refers to an electrical node located upstream in the direction of power transmission. A rear-end electrical node refers to an electrical node located downstream in the direction of power transmission and directly connected to the front-end electrical node. The quotation review system extracts the rated voltage level values ​​of the front-end and rear-end electrical nodes and compares whether the two values ​​are exactly the same.

[0076] For example, traverse the adjacent nodes of the main circuit breaker and the main cable. The main circuit breaker, as the upstream electrical node, has a rated voltage of 380 volts; the main cable, as the downstream electrical node, also has a rated voltage of 380 volts, so determine that their rated voltage levels are consistent.

[0077] Step 303: If the voltage levels are inconsistent, the electrical logic result is determined to be that the electrical branch logic is inconsistent.

[0078] Optionally, if the rated voltage levels of two adjacent electrical nodes are different, it indicates a physical connection error due to voltage level mismatch in the electrical branch, which may cause equipment burnout or malfunction. The quotation review system will mark the electrical logic result of this electrical branch as inconsistent and terminate the subsequent parameter checks at the current level of this electrical branch.

[0079] For example, when traversing the adjacent nodes of the transformer's high-voltage side and the main distribution cabinet, it was found that the rated voltage level of the transformer's high-voltage side is 10 kV, while the rated voltage level of the main distribution cabinet is 380 V, which is inconsistent. Therefore, the electrical logic result of this high-voltage side electrical branch is determined to be an electrical branch logic inconsistency.

[0080] Step 304: If the voltage levels are the same, determine whether the phase sequence wiring type of the preceding electrical node and the phase sequence wiring type of the following electrical node meet the preset electrical connection compatibility.

[0081] Optionally, the preset electrical connection compatibility refers to the matching rules specified in the electrical design code that allow direct connection between different phase sequence wiring types. For example, a three-phase five-wire system can be directly connected to a three-phase five-wire cable, but a three-phase four-wire system cannot be directly connected to a three-phase five-wire load that requires an independent protective grounding wire. The quotation review system extracts the phase sequence wiring types of the upstream and downstream electrical nodes, queries the preset electrical connection compatibility rule library, and determines whether the combination of the two wiring types is allowed by the rule library.

[0082] For example, the rated voltage level of the main circuit breaker and the main trunk cable is the same, both at 380 volts. The phase sequence wiring type of the main circuit breaker is found to be three-phase five-wire, and the phase sequence wiring type of the main trunk cable is also three-phase five-wire. By consulting the preset electrical connection compatibility rule library, it is confirmed that the combination of three-phase five-wire and three-phase five-wire systems complies with electrical connection compatibility.

[0083] Step 305: If the electrical connection compatibility is not met, the electrical logic result is determined to be an electrical branch logic inconsistency.

[0084] Optionally, when the phase sequence wiring combination of adjacent electrical nodes violates the electrical connection compatibility rules, it indicates a structural risk of mixed grounding system connections or incorrect phase wire configuration on the electrical branch. The quotation review system will mark the electrical logic result of this electrical branch as inconsistent.

[0085] For example, determine the phase sequence wiring combination of a certain section of main cable (three-phase four-wire system) and the terminal distribution box (requiring three-phase five-wire system). Since the three-phase four-wire system lacks an independent protective grounding wire, it does not meet the electrical connection compatibility requirements of the three-phase five-wire system in the terminal distribution box. Therefore, the electrical logic result of this electrical branch is determined to be an electrical branch logic inconsistency.

[0086] Step 306: If the electrical connection compatibility is met, locate the two electrical nodes that are directly connected as protection devices, obtain the target protection device node pair, and determine whether the upstream tripping characteristic category has the selective coordination capability with the downstream tripping characteristic category based on the upstream tripping characteristic category of the upstream protection device node and the downstream tripping characteristic category of the downstream protection device node in the target protection device node pair.

[0087] Optionally, a target protection device node pair refers to two electrical nodes directly connected by an electrical connection edge on an electrical branch, both of which have the function of circuit protection. The upstream tripping characteristic category refers to the operating time-current curve type of the upstream protection device under overload or short-circuit current, such as inverse-time tripping or definite-time tripping. The downstream tripping characteristic category refers to the operating time-current curve type of the downstream protection device. Selective coordination capability refers to the ability of the upstream protection device to delay or not operate when a fault occurs at a downstream electrical node, thereby ensuring that only the downstream protection device disconnects the faulty circuit.

[0088] The quotation review system extracts the tripping characteristic categories of upstream and downstream, calculates the action time difference based on the action time-current curves of the two, and determines that selective coordination capability is available if the upstream action time is greater than the downstream action time in all fault current ranges.

[0089] For example, by locating the main circuit breaker and the incoming circuit breaker in the intermediate distribution box as two directly connected electrical nodes with the functional attribute of circuit protection, the target protection device node pair is obtained. The upstream tripping characteristic category of the main circuit breaker is extracted as inverse-time short-delay trip, and the downstream tripping characteristic category of the incoming circuit breaker is inverse-time instantaneous trip. The operating time difference is calculated based on the operating time-current curves of the two devices. It is confirmed that within the short-circuit current range, the operating time of the main circuit breaker is greater than that of the incoming circuit breaker, indicating that the upstream tripping characteristic category has the selective coordination capability with the downstream tripping characteristic category.

[0090] Step 307: If selective coordination capability is not available, the electrical logic result is determined to be an electrical branch logic inconsistency.

[0091] Optionally, if upstream protection devices fail to selectively coordinate during a fault, it can lead to cascading tripping, expanding the power outage area, which is considered a protection logic design error. The quotation review system will mark the electrical logic result of this electrical branch as inconsistent.

[0092] For example, if two directly connected protection devices are both identified as having instantaneous tripping characteristics, and the upstream tripping characteristic is also instantaneous, and the upstream setting current is less than or equal to the downstream setting current, and calculations show that their operating times are identical, indicating a lack of selective coordination capability, then the electrical logic result of this electrical branch is determined to be inconsistent.

[0093] Step 308: If selective coordination capability is available, the electrical logic result is determined based on the grounding type identification of the local area where the target protection device node is located and the downstream protection device node is located.

[0094] Optionally, the grounding type identifier refers to the specific classification code of the electrical system grounding within a local area, such as a three-phase five-wire grounding system, a three-phase four-wire and three-phase five-wire mixed grounding system, or a local direct grounding system. The quotation review system obtains the grounding type identifier of the local area where the downstream protection device node is located, and, in conjunction with the electrical system grounding specifications, assesses whether the grounding fault protection requirements under this grounding type match, and derives the electrical logic result, as detailed in steps 3081 to 3086.

[0095] This invention extracts the voltage, phase sequence, and functional attributes of electrical branch nodes along a causal time-series path, verifies the consistency of rated voltage levels and phase sequence wiring compatibility of adjacent nodes to identify physical connection errors, locates target protection device node pairs, calculates the action time difference based on tripping characteristic categories to assess selective coordination capability, and finally determines the electrical logic result by combining grounding type identification. This approach can accurately identify deep-seated parameter conflicts and potential protection logic failures in electrical branches, eliminate hidden omissions caused by missing system-level logic dependencies, and improve the accuracy of electrical quotation review at the power distribution system level.

[0096] Optionally, the process of steps 3081 to 3086 includes: Step 3081: Determine whether there is a compatibility conflict between the grounding type identifier of the local area where the downstream protection device node is located and the residual current protection function configured on the downstream protection device node.

[0097] Optionally, a compatibility conflict refers to a situation where the combination of the neutral and protective grounding wires specified in the grounding type identifier contradicts the current detection path required for the normal operation of the residual current protection function. The quotation review system obtains the grounding type identifier of the local area where the downstream protection device node is located, and obtains the residual current protection function configured in the downstream protection device node, analyzing the physical connection logic of the two. If the grounding system causes the neutral current and protective grounding wire current to mix during normal operation, making it impossible for the residual current protection function to correctly detect the leakage current, then a compatibility conflict is determined to exist.

[0098] For example, the system identifies the grounding type of the local area where the incoming circuit breaker (as a downstream protection device node) is located in the intermediate distribution box as a three-phase four-wire grounding system (i.e., the neutral and protective grounding wires are combined). It also identifies that this incoming circuit breaker is equipped with residual current protection. Because the combination of the neutral and protective grounding wires would prevent the residual current protection function from correctly detecting leakage current, the quotation review system determines that there is a compatibility conflict between the three-phase four-wire grounding system and the residual current protection function.

[0099] Step 3082: If a compatibility conflict exists, the electrical logic result is determined to be an electrical branch logic inconsistency.

[0100] Optionally, a compatibility conflict means that the residual current protection function of the electrical branch cannot reliably disconnect the faulty circuit when a ground fault occurs, or it may trip falsely during normal operation, which constitutes an electrical safety design error. Therefore, if a compatibility conflict exists, the quotation review system will mark the electrical logic result of that electrical branch as having inconsistent electrical logic.

[0101] For example, since it has been determined that there is a compatibility conflict between the three-phase four-wire grounding system of the local area where the incoming circuit breaker in the intermediate distribution box is located and the residual current protection function configured on the incoming circuit breaker, the electrical logic result of the electrical branch where the intermediate distribution box is located is determined to be an electrical branch logic inconsistency.

[0102] Step 3083: If there is no compatibility conflict, then based on traversing two adjacent electrical nodes on the electrical branch, determine whether the node function attribute of the preceding electrical node indicates that it has a disconnection point function, and whether the node function attribute of the following electrical node indicates that it is a load node or a lower-level power distribution node, and confirm whether there is an isolation logic breakpoint between adjacent electrical nodes.

[0103] Optionally, the disconnection point function refers to the function of electrical equipment to provide a visible or clearly identifiable physical air gap that complies with safety regulations when disconnected. The isolation logic breakpoint refers to a logical deficiency in an electrical branch where the upstream electrical node lacks the disconnection point function, resulting in the inability to achieve safe electrical isolation during maintenance of downstream load nodes or lower-level distribution nodes.

[0104] Load nodes refer to terminal electrical equipment nodes that directly consume electrical energy. Lower-level distribution nodes refer to distribution equipment nodes that receive electrical energy and distribute it to more downstream loads.

[0105] Traverse the electrical branches, extract the node functional attributes of the preceding electrical nodes, and determine whether they contain a disconnection point function. Simultaneously, extract the node functional attributes of the following electrical nodes and determine whether they are load nodes or downstream distribution nodes. If the preceding electrical node does not have a disconnection point function, and the following electrical node is a load node or a downstream distribution node, then it is confirmed that there is an isolation logic breakpoint between adjacent electrical nodes.

[0106] For example, assuming the grounding type of the local area where the intermediate distribution box is located is a three-phase five-wire grounding system (i.e., the neutral line and protective grounding line are separate), there is no compatibility conflict with the residual current protection function. Traversing the adjacent electrical nodes of the main cable and the intermediate distribution box, the node functional attributes of the main cable (as the upstream electrical node) are extracted. It is found that it only transmits electrical energy and does not have a disconnection point function. Simultaneously, the node functional attributes of the intermediate distribution box (as the downstream electrical node) are extracted, confirming that it is a downstream distribution node. Since the main cable does not have a disconnection point function, and the intermediate distribution box is a downstream distribution node, it is confirmed that there is an isolation logic breakpoint between the main cable and the intermediate distribution box (i.e., the intermediate distribution box lacks a disconnecting switch with a disconnection point function at its inlet).

[0107] Step 3084: If there is an isolation logic breakpoint, then the electrical logic result is determined to be an electrical branch logic inconsistency.

[0108] Optionally, the existence of an isolation logic breakpoint means that during power outage maintenance, downstream load nodes or lower-level distribution nodes cannot achieve safe physical isolation through upstream electrical nodes, posing a risk of electric shock and violating electrical safety design specifications. Therefore, if an isolation logic breakpoint exists, the quotation review system will mark the electrical logic result of that electrical branch as inconsistent.

[0109] For example, since it has been confirmed that there is an isolation logic breakpoint between the main cable and the intermediate distribution box (the intermediate distribution box lacks an isolating switch at the incoming end), the electrical logic result of the electrical branch from the main cable to the intermediate distribution box is determined to be an electrical branch logic inconsistency.

[0110] Step 3085: If there is no isolation logic breakpoint, determine whether the loop occupancy count of the downstream load node exceeds the single-level access limit of the rated power distribution loop number level of the upstream power node.

[0111] Optionally, the circuit occupancy count refers to the total number of independent power circuits actually connected to the downstream load node. The rated distribution circuit number level refers to the maximum number of independent power circuits allowed for safe connection as specified in the design specifications of the upstream power node. The single-level access limit refers to the specific maximum number of circuits corresponding to the rated distribution circuit number level. The quotation review system obtains the circuit occupancy count of the downstream load node and the rated distribution circuit number level of the upstream power node. Based on the preset level mapping rules, it queries the single-level access limit corresponding to that level, compares the circuit occupancy count with the single-level access limit, and determines whether the circuit occupancy count is greater than the single-level access limit.

[0112] For example, assuming an incoming disconnect switch with a clear disconnection point is installed between the main cable and the intermediate distribution box, and there is no isolation logic breakpoint. The circuit occupancy count of the terminal distribution box (as a downstream load node) is obtained as 12 independent lighting and socket circuits. The rated distribution circuit number level of the main circuit breaker (as a upstream power supply node) is obtained as standard level. Querying the preset level mapping rule, it is found that the single-level access limit corresponding to standard level is 10 circuits. It is determined that the circuit occupancy count of 12 in the terminal distribution box exceeds the single-level access limit of 10 set by the main circuit breaker.

[0113] Step 3086: If the time limit is exceeded, the electrical logic result is determined to be an electrical branch logic inconsistency. If the time limit is not exceeded, the electrical logic result is determined to be an electrical branch logic consistency.

[0114] Optionally, if the circuit occupancy count of the downstream load node exceeds the single-level access limit of the rated distribution circuit number level of the upstream power supply node, the quotation review system determines the electrical logic result as an inconsistency in electrical branch logic. If the circuit occupancy count of the downstream load node does not exceed the single-level access limit of the rated distribution circuit number level of the upstream power supply node, the quotation review system determines the electrical logic result as consistent in electrical branch logic. A circuit occupancy count exceeding the single-level access limit means that the upstream power supply node may face overload risk or chaotic branch circuit management, which constitutes an error in distribution capacity planning.

[0115] For example, if the circuit occupancy count of the terminal distribution box is determined to be 12, exceeding the single-level access limit of 10 set by the main circuit breaker, then the electrical logic result of the electrical branch from the main circuit breaker to the terminal distribution box is determined to be inconsistent. Conversely, if in another electrical branch, the circuit occupancy count of the terminal distribution box is 8, which does not exceed the single-level access limit of 10, then the electrical logic result of that electrical branch is determined to be consistent.

[0116] This invention verifies the compatibility of the grounding type identification and residual current protection function of the local area where the downstream protection device node is located, and investigates the potential leakage protection failure caused by the mixed use of grounding systems. Then, under the premise of compatibility, it traverses adjacent nodes to check whether the upstream node has a clear disconnection point function to confirm whether there is an isolation logic breakpoint, thereby eliminating the risk of electric shock during the maintenance of downstream equipment. Finally, when there is no isolation breakpoint, it compares the circuit occupancy count of downstream load nodes with the single-level access limit of upstream power supply nodes to prevent overload and management chaos in the power distribution circuit. It can accurately capture deep-seated hidden safety design defects and capacity planning errors in electrical branches, solve the problem of safety hazards and omissions caused by the inability to identify system-level logical dependencies, and ensure the accuracy of electrical quotation review results.

[0117] Optionally, the processes of steps 401 to 406 include: Step 401: For a pair of protection device nodes where the electrical logic result indicates a compatibility conflict, if the node mapping status of the downstream protection device node indicates a mapping association, and the node mapping status of the connection topology node between the downstream protection device node and the grounding bus indicates no mapping association, then the missing device in the connection topology node between the downstream protection device node and the grounding bus is determined to be an isolation transformer device.

[0118] Optionally, the quotation review system, upon obtaining electrical logic results indicating a pair of protection device nodes with compatibility conflicts, checks the node mapping status of the downstream protection device nodes within that pair. The node mapping status refers to whether a corresponding electrical node mapping relationship exists for the equipment item in the project dependency graph, including whether a mapping association exists or not. A mapping association exists because the corresponding equipment item exists in the pending electrical quotation list and has been mapped to the project dependency graph; a mapping association does not exist because the corresponding equipment item is missing from the pending electrical quotation list and is not mapped to the project dependency graph.

[0119] If the node mapping status of the downstream protection device node indicates that a mapping association exists, the quotation review system checks the node mapping status of the connection topology node between the downstream protection device node and the grounding busbar. A connection topology node refers to a transitional electrical node that, according to electrical physical connection logic, should exist between the downstream protection device node and the grounding busbar. If the node mapping status of this connection topology node indicates that no mapping association exists, then the missing device in the connection topology node between the downstream protection device node and the grounding busbar is determined to be an isolation transformer device. Isolation transformer devices are used to physically isolate the grounding system on the power supply side from the grounding system on the load side, thereby eliminating compatibility conflicts between residual current protection functions and the grounding system.

[0120] For example, it was discovered that the incoming circuit breaker in the intermediate distribution box (as a downstream protection device node) has a compatibility conflict with the three-phase four-wire grounding system of its local area. Checking the node mapping status of this incoming circuit breaker confirmed that it has a corresponding equipment entry in the electrical quotation list to be reviewed, i.e., a mapping relationship exists. Checking the connection topology node between this incoming circuit breaker and the grounding busbar revealed that the electrical quotation list to be reviewed lacks equipment for the isolation grounding system, meaning that this connection topology node lacks a mapping relationship. Therefore, it was determined that the missing equipment in this connection topology node is an isolation transformer.

[0121] Step 402: For adjacent node pairs whose electrical logic results indicate that they exceed the single-level access limit, if the node mapping status of the preceding power supply node indicates that there is a mapping association, and the node mapping status of the downstream branch topology node of the preceding power supply node indicates that there is no mapping association, then the missing device of the downstream branch topology node of the preceding power supply node is determined to be a branch distribution box device.

[0122] Optionally, the quotation review system obtains an electrical logic result indicating that the adjacent node pair exceeds the single-level access limit, and checks the node mapping status of the upstream power supply node in the adjacent node pair.

[0123] If the node mapping status of the upstream power supply node indicates that a mapping relationship exists, the quotation review system checks the node mapping status of the downstream branch topology nodes of the upstream power supply node. Downstream branch topology nodes, according to the distribution capacity planning logic, should exist between the upstream power supply node and the downstream load node to share the number of circuits. If the node mapping status of this downstream branch topology node indicates that no mapping relationship exists, the quotation review system determines that the missing device in the downstream branch topology node of the upstream power supply node is a sub-distribution distribution box. Sub-distribution distribution boxes are used to physically distribute centralized load circuits, thereby reducing the number of single-level connected circuits of the upstream power supply node.

[0124] For example, if the adjacent node pair between the main circuit breaker (as a front-end power supply node) and the terminal distribution box (as a downstream load node) is obtained, the electrical logic result is that the circuit occupancy count of the terminal distribution box exceeds the single-level access limit of the main circuit breaker. Checking the node mapping status of the main circuit breaker confirms the existence of a mapping relationship. Checking the downstream branch topology nodes between the main circuit breaker and the terminal distribution box reveals that the electrical quotation list to be reviewed is missing distribution equipment used for shunt circuits, meaning that this downstream branch topology node does not have a mapping relationship. Therefore, it is determined that the missing equipment in this downstream branch topology node is the branch distribution box equipment.

[0125] Step 403: For adjacent node pairs where the electrical logic result indicates a missing isolation logic breakpoint, if the node mapping status of the preceding electrical node indicates a mapping association and the device function attribute indicates that it does not have a disconnection point function, or if the node mapping status of the direct connection topology position between the preceding and following electrical nodes indicates that there is no mapping association, then the missing device in the direct connection topology position between the preceding and following electrical nodes is determined to be an isolating switch device.

[0126] Optionally, the quotation review system obtains adjacent node pairs where the electrical logic result indicates a missing isolation logic breakpoint. It then checks the node mapping status and device functional attributes of the preceding electrical nodes in these pairs, and simultaneously checks the node mapping status of the direct connection topology location between the preceding and following electrical nodes. The direct connection topology location refers to the installation location that, according to electrical safety isolation specifications, should exist between the preceding and following electrical nodes to provide a clear physical disconnection point.

[0127] If the node mapping status of the upstream electrical node indicates that a mapping association exists but the device function attribute indicates that it does not have a disconnection point function, or if the node mapping status of the directly connected topology location indicates that no mapping association exists, the quotation review system will determine that the missing device at the directly connected topology location between the upstream and downstream electrical nodes is a disconnecting switch. Disconnecting switch equipment is used to provide a visible physical air gap that complies with safety regulations when the circuit is disconnected.

[0128] For example, if the adjacent node pairs of the main cable (as the front-end electrical node) and the intermediate distribution box (as the rear-end electrical node) are obtained, the electrical logic result is that the isolation logic breakpoint is missing. Checking the node mapping status of the main cable confirms that there is a mapping relationship, and its equipment function attribute is only power transmission, without the function of disconnection point. At the same time, checking the direct connection topology position between the main cable and the intermediate distribution box, it is found that the electrical quotation list to be reviewed is missing equipment that provides a clear disconnection point, that is, there is no mapping relationship for this direct connection topology position. Therefore, it is determined that the missing equipment for this direct connection topology position is the disconnecting switch equipment.

[0129] Step 404: For protection device node pairs whose electrical logic results indicate that they do not have selective coordination capability, if the node mapping status of both the upstream and downstream protection device nodes indicates that there is a mapping relationship, and the node mapping status of the intermediate topology node between the upstream and downstream protection device nodes indicates that there is no mapping relationship, then the missing device in the intermediate topology node between the upstream and downstream protection device nodes is determined to be an intermediate-level protection circuit breaker device.

[0130] Optionally, the quotation review system, upon obtaining electrical logic results indicating that a pair of protection device nodes lacks selective coordination capability, checks the node mapping status between the upstream and downstream protection device nodes in that pair. If the node mapping status of both the upstream and downstream protection device nodes indicates a mapping relationship, the system then checks the node mapping status of the intermediate topology nodes between the upstream and downstream protection device nodes. An intermediate topology node, according to the protection level coordination logic, should exist between the upstream and downstream protection device nodes to increase the protection level and achieve a time difference in operation. If the node mapping status of this intermediate topology node indicates no mapping relationship, the quotation review system determines that the missing device in the intermediate topology node between the upstream and downstream protection device nodes is an intermediate-level protection circuit breaker. Intermediate-level protection circuit breakers are used to add a tripping time gradient between upstream and downstream protection devices to prevent cascading tripping.

[0131] For example, the electrical logic result of obtaining the protection device node pair between the main circuit breaker (as an upstream protection device node) and the incoming circuit breaker in the intermediate distribution box (as a downstream protection device node) is that it lacks selective coordination capability. Checking the node mapping status of the main circuit breaker and the incoming circuit breaker confirms that both have a mapping relationship. Checking the intermediate topology node between the main circuit breaker and the incoming circuit breaker reveals that the electrical quotation list to be reviewed is missing equipment for adding protection levels, meaning that this intermediate topology node lacks a mapping relationship. Therefore, it is determined that the missing equipment in this intermediate topology node is an intermediate-level protection circuit breaker.

[0132] Step 405: For adjacent node pairs whose electrical logic results indicate that they do not meet electrical connection compatibility, if the node mapping status of both the preceding and following electrical nodes indicates that there is a mapping relationship, and the node mapping status of the direct connection topology node between the preceding and following electrical nodes indicates that there is no mapping relationship, then the missing device in the direct connection topology node between the preceding and following electrical nodes is determined to be a phase converter device.

[0133] Optionally, if the quotation review system obtains an electrical logic result indicating that an adjacent node pair does not meet electrical connection compatibility requirements, it checks the node mapping status between the preceding and following electrical nodes in that pair. If the node mapping status of both the preceding and following electrical nodes indicates that a mapping relationship exists, it checks the node mapping status of the direct connection topology nodes between the preceding and following electrical nodes. Here, a direct connection topology node refers to a conversion electrical node that, according to the phase sequence wiring conversion logic, should exist between the preceding and following electrical nodes to change the phase sequence wiring type.

[0134] If the node mapping status of the directly connected topology node indicates that there is no mapping association, the quotation review system determines that the missing device in the directly connected topology node between the front-end electrical node and the rear-end electrical node is a phase converter device. The phase converter device is used to convert the phase sequence wiring type of the front-end electrical node to the phase sequence wiring type required by the rear-end electrical node.

[0135] For example, if the adjacent node pair of a main cable (with a three-phase four-wire phase sequence connection, serving as a front-end electrical node) and the terminal distribution box (with a three-phase five-wire phase sequence connection, serving as a rear-end electrical node) is obtained, the electrical logic result is that it does not meet the electrical connection compatibility requirements. Checking the node mapping status between the main cable and the terminal distribution box confirms that a mapping relationship exists between them. Checking the direct connection topology nodes between the main cable and the terminal distribution box reveals that the electrical quotation list to be reviewed is missing equipment for converting the phase sequence connection type, meaning that this direct connection topology node lacks a mapping relationship. Therefore, it is determined that the missing equipment in this direct connection topology node is a phase converter device.

[0136] Step 406: For adjacent node pairs whose electrical logic results indicate that they do not meet the voltage level, if the node mapping status of both the preceding and following electrical nodes indicates that there is a mapping relationship, and the node mapping status of the voltage transformation topology node between the preceding and following electrical nodes indicates that there is no mapping relationship, then the missing device of the voltage transformation topology node between the preceding and following electrical nodes is determined to be a transformer device.

[0137] Optionally, the quotation review system obtains an electrical logic result indicating that the adjacent node pair does not meet the voltage level, and checks the node mapping status between the preceding and following electrical nodes in the adjacent node pair.

[0138] If both the upstream and downstream electrical nodes indicate a mapping relationship, then check the node mapping status of the voltage transformation topology node between them. A voltage transformation topology node, according to voltage level matching logic, is a transformer electrical node that should exist between the upstream and downstream electrical nodes to change the voltage level.

[0139] If the node mapping status of the voltage transformation topology node indicates that there is no mapping association, the quotation review system determines that the missing device in the voltage transformation topology node between the upstream and downstream electrical nodes is a transformer device. The transformer device is used to transform the rated voltage level of the upstream electrical node to the rated voltage level required by the downstream electrical node.

[0140] For example, if the adjacent node pair between the high-voltage side of the transformer (rated voltage level of 10 kV, as the front-end electrical node) and the main distribution cabinet (rated voltage level of 380 V, as the back-end electrical node) is obtained, the electrical logic result is that it does not conform to the voltage level.

[0141] Check the node mapping status between the high-voltage side of the transformer and the main distribution cabinet to confirm that there is a mapping relationship between the two. Check the voltage transformation topology node between the high-voltage side of the transformer and the main distribution cabinet. It was found that the equipment used for voltage reduction was missing in the electrical quotation list to be reviewed. That is, there is no mapping relationship for the voltage transformation topology node. Therefore, it was determined that the missing equipment in the voltage transformation topology node is the transformer equipment.

[0142] This invention, in response to the electrical logic results of each type of anomaly, combines the node mapping status of each node in the electrical mapping association chain to deeply analyze the structural gaps between the quoted equipment and the system physical topology. It then accurately locates the missing states of key locations such as connecting topology nodes, downstream branch topology nodes, directly connected topology locations, intermediate topology nodes, and voltage transformation topology nodes. It intelligently deduces and completes the list of missing equipment, including isolation transformer equipment, branch control box equipment, disconnecting switch equipment, intermediate-level protection circuit breaker equipment, phase converter equipment, and transformer equipment. This transforms abstract system-level logical conflicts into a concrete list of missing physical equipment, breaking the limitation of only being able to detect explicit parameter errors but not deep topology dependency gaps. It achieves an automated closed loop from logical anomalies to physical equipment completion, improving the accuracy of electrical quotation review in identifying omissions in complex system-level systems.

[0143] Furthermore, the electrical quotation linkage review system based on a large model provided by the present invention will be described below. The electrical quotation linkage review system based on a large model described below can be referred to in correspondence with the electrical quotation linkage review method based on a large model described above.

[0144] Optionally, refer to Figure 2 , Figure 2 This is a schematic diagram of the electrical quotation linkage review system based on a large model provided by the present invention. The electrical quotation linkage review system based on a large model includes: The electrical dependency analysis module 210 is used to construct a project dependency graph based on the topological connection relationship of electrical engineering and the attributes of electrical equipment, and to generate an electrical logic chain based on the node path sequence and electrical constraints in the project dependency graph.

[0145] The electrical mapping association analysis module 220 is used to map the equipment items in the electrical quotation list to the corresponding electrical nodes in the project dependency graph based on the electrical logic thinking chain of the large model, so as to obtain the electrical mapping association chain.

[0146] The electrical branch logic analysis module 230 is used to traverse each electrical branch in the project dependency graph based on the electrical mapping association chain and the electrical logic thinking chain, check the logical relationship of electrical parameters between adjacent electrical nodes on the electrical branch, and obtain the electrical logic result.

[0147] The missing equipment completion module 240 is used to perform electrical anomaly analysis based on the electrical logic results and the node mapping status of each electrical node in the electrical mapping association chain, to obtain missing equipment, and to complete the missing equipment based on the preset electrical quotation knowledge base, thereby obtaining an electrical quotation review report.

[0148] The embodiments of the present invention solve the technical problem of difficulty in effectively identifying hidden omissions caused by the lack of logical dependencies in electrical systems, and improve the accuracy of electrical quotation review.

[0149] Please see Figure 3 , Figure 3 An embodiment diagram of an electronic device provided in accordance with the present invention. For example... Figure 3 As shown, an embodiment of the present invention provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor 320. When the processor 320 executes the computer program 311, it implements the processes of steps 10 to 40.

[0150] Please see Figure 4 , Figure 4 An embodiment diagram of a computer-readable storage medium provided in accordance with an embodiment of the present invention is shown. Figure 4 As shown, this embodiment provides a computer-readable storage medium 400 on which a computer program 311 is stored. When the computer program 311 is executed by a processor, it implements the processes of steps 10 to 40.

[0151] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the electrical quotation linkage review method based on the large model provided by the above methods, which includes the process of steps 10 to 40.

[0152] The system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0153] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0154] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for joint review of electrical quotation based on a large model, characterized in that, include: Based on the topological connections and electrical equipment attributes of electrical engineering, a project dependency graph is constructed, and an electrical logic thought chain is generated based on the node path sequence and electrical constraints in the project dependency graph. Based on the large model, the electrical logic thinking chain is used to map the equipment items in the electrical quotation list to be reviewed to the corresponding electrical nodes in the project dependency graph, thus obtaining the electrical mapping association chain. Based on the electrical mapping association chain and the electrical logic thinking chain, traverse each electrical branch in the project dependency graph, check the logical relationship of electrical parameters between adjacent electrical nodes on the electrical branch, and obtain the electrical logic result; Based on the electrical logic results and the node mapping status of each electrical node in the electrical mapping association chain, an electrical anomaly analysis is performed to identify missing equipment. Then, based on a preset electrical quotation knowledge base, the missing equipment is supplemented to obtain an electrical quotation review report.

2. The electrical quotation linkage review method based on a large model according to claim 1, characterized in that, The electrical logic result is obtained by: Based on the mapping relationship between the equipment entries in the electrical mapping association chain and the electrical nodes in the project dependency graph, the rated voltage level, phase sequence wiring type and node functional attributes of each electrical node on the electrical branch are extracted along the causal time sequence path segments in the electrical logic thinking chain. Iterate through two adjacent electrical nodes and determine whether the rated voltage level of the preceding electrical node is consistent with the rated voltage level of the following electrical node. If the voltage levels are inconsistent, the electrical logic result is determined to be an electrical branch logic inconsistency; If the voltage levels are the same, determine whether the phase sequence wiring type of the upstream electrical node and the phase sequence wiring type of the downstream electrical node meet the preset electrical connection compatibility. If the electrical connection compatibility is not met, the electrical logic result is determined to be an electrical branch logic inconsistency; If the electrical connection compatibility is met, the two electrical nodes whose functional attributes indicate protection devices and are directly connected are identified as the target protection device node pair. Based on the upstream tripping characteristic category of the upstream protection device node and the downstream tripping characteristic category of the downstream protection device node in the target protection device node pair, it is determined whether the upstream tripping characteristic category has the ability to selectively cooperate with the downstream tripping characteristic category. If selective coordination is not possible, the electrical logic result is determined to be an electrical branch logic inconsistency. If selective coordination capability is available, the electrical logic result is determined based on the grounding type identification of the local area where the target protection device node is located and the downstream protection device node is located.

3. The electrical quotation linkage review method based on a large model according to claim 2, characterized in that, The determination of the electrical logic result based on the grounding type identification of the local area where the target protection device node is located includes: Determine whether there is a compatibility conflict between the grounding type identification of the local area where the downstream protection device node is located and the residual current protection function configured in the downstream protection device node; If a compatibility conflict exists, the electrical logic result is determined to be an electrical branch logic inconsistency; If there is no compatibility conflict, then based on traversing two adjacent electrical nodes on the electrical branch, determine whether the node function attribute of the preceding electrical node indicates that it has a disconnection point function, and whether the node function attribute of the following electrical node indicates that it is a load node or a lower-level power distribution node, and confirm whether there is an isolation logic breakpoint between adjacent electrical nodes. If an isolation logic breakpoint exists, the electrical logic result is determined to be an electrical branch logic inconsistency; If there is no isolation logic breakpoint, determine whether the loop occupancy count of the downstream load node exceeds the single-level access limit of the rated power distribution loop number level of the upstream power node. If the value exceeds the limit, the electrical logic result is determined to be an electrical branch logic inconsistency; if the value does not exceed the limit, the electrical logic result is determined to be an electrical branch logic consistency.

4. The electrical quotation linkage review method based on a large model according to claim 3, characterized in that, The steps for identifying the missing equipment through electrical anomaly analysis include: For a pair of protection device nodes whose electrical logic results indicate a compatibility conflict, if the node mapping status of the downstream protection device node indicates a mapping association, and the node mapping status of the connection topology node between the downstream protection device node and the grounding bus indicates no mapping association, then the missing device in the connection topology node between the downstream protection device node and the grounding bus is determined to be an isolation transformer device. For adjacent node pairs whose electrical logic results indicate that they exceed the single-level access limit, if the node mapping status of the preceding power supply node indicates that there is a mapping relationship, and the node mapping status of the downstream branch topology node of the preceding power supply node indicates that there is no mapping relationship, then the missing device of the downstream branch topology node of the preceding power supply node is determined to be a branch control box device. For adjacent node pairs whose electrical logic results indicate a missing isolation logic breakpoint, if the node mapping status of the preceding electrical node indicates a mapping association and the device function attribute indicates that it does not have a disconnection point function, or if the node mapping status of the direct connection topology position between the preceding and following electrical nodes indicates that there is no mapping association, then the missing device in the direct connection topology position between the preceding and following electrical nodes is determined to be an isolating switch device.

5. The electrical quotation linkage review method based on a large model according to claim 2, characterized in that, The steps for identifying the missing equipment through electrical anomaly analysis include: For a pair of protection device nodes whose electrical logic results indicate that they do not have selective coordination capability, if the node mapping status of both the upstream and downstream protection device nodes indicates that there is a mapping relationship, and the node mapping status of the intermediate topology node between the upstream and downstream protection device nodes indicates that there is no mapping relationship, then the missing device in the intermediate topology node between the upstream and downstream protection device nodes is determined to be an intermediate-level protection circuit breaker device. For adjacent node pairs whose electrical logic results indicate that they do not meet electrical connection compatibility, if the node mapping status of both the preceding and following electrical nodes indicates that there is a mapping relationship, and the node mapping status of the direct connection topology node between the preceding and following electrical nodes indicates that there is no mapping relationship, then the missing device in the direct connection topology node between the preceding and following electrical nodes is determined to be a phase converter device. For adjacent node pairs whose electrical logic results indicate that they do not meet the voltage level, if the node mapping status of both the preceding and following electrical nodes indicates that there is a mapping relationship, and the node mapping status of the voltage transformation topology node between the preceding and following electrical nodes indicates that there is no mapping relationship, then the missing device in the voltage transformation topology node between the preceding and following electrical nodes is determined to be a transformer device.

6. The electrical quotation linkage review method based on a large model according to any one of claims 1 to 5, characterized in that, Generate an electrical logic thought chain, including: Traverse each electrical node in the project dependency graph to obtain the electrical node sequence and its corresponding connection edge sequence from the first electrical node at the power source to the second electrical node at the load end, and construct the electrical connection path based on the electrical node sequence and its corresponding connection edge sequence; Taking electrical nodes in the electrical connection path that are transformers or isolators as target nodes, the electrical connection path is functionally divided based on the target nodes to obtain voltage-equivalent functional domain segments. Based on the direction of energy flow from the power source to the load, the node sequence within each functional domain segment of the same pressure is connected in the upstream and downstream directions to obtain the causal time sequence path segment. Based on the port type characteristics of the ports corresponding to the ports of the connecting edges between adjacent nodes in the causal temporal path segment and the electrical constraints, the electrical logic thought chain is generated.

7. The electrical quotation linkage review method based on a large model according to claim 6, characterized in that, The generation of the electrical logic chain based on the port type characteristics of the ports corresponding to the connection edges between adjacent nodes in the causal temporal path segment and the electrical constraints includes: Based on the port type characteristics of the ports corresponding to the ports of the connecting edges between adjacent nodes in the causal time-series path segment and the electrical interface compatibility constraints indicated by the electrical constraints, a compatibility match is performed, and adjacent nodes and their connecting edges that satisfy the compatibility match are associated as local logical units, generating a sequence of local logical units; Based on the preset position of the protection device node in the local logic unit sequence, the direct protection membership relationship between the protection device node and the adjacent downstream unit, as well as the indirect protection membership relationship between the protection device node and the subsequent units up to the unit before the next protection device node, are established to obtain the hierarchical protection logic sequence. Based on the grounding terminal status attributes of each local logic unit in the hierarchical protection logic sequence and the grounding connection constraints indicated by the electrical constraints, the physical grounding connection between adjacent local logic units is determined to obtain the grounding connection determination result; the grounding connection determination result includes grounding connection and grounding disconnection. Establish ground current logic links between adjacent units that are connected to the ground and ground current logic breakpoints between adjacent units that are disconnected to the ground to obtain a ground current logic sequence. Then, integrate the ground current logic sequence with the hierarchical protection logic sequence to obtain the electrical logic chain.

8. An electrical quotation linkage review system based on a large model, characterized in that, Used to implement the electrical quotation linkage review method based on a large model as described in any one of claims 1 to 7; The electrical quotation linkage review system based on a large model includes: The electrical dependency analysis module is used to construct a project dependency graph based on the topological connection relationship and electrical equipment attributes of electrical engineering, and to generate an electrical logic chain based on the node path sequence and electrical constraints in the project dependency graph. The electrical mapping association analysis module is used to map the equipment items in the electrical quotation list to be reviewed to the corresponding electrical nodes in the project dependency graph based on the electrical logic thinking chain of the large model, so as to obtain the electrical mapping association chain. The electrical branch logic analysis module is used to traverse each electrical branch in the project dependency graph based on the electrical mapping association chain and the electrical logic thinking chain, check the logical relationship of electrical parameters between adjacent electrical nodes on the electrical branch, and obtain the electrical logic result; The missing equipment completion module is used to perform electrical anomaly analysis based on the electrical logic results and the node mapping status of each electrical node in the electrical mapping association chain to obtain missing equipment, and to complete the missing equipment based on a preset electrical quotation knowledge base to obtain an electrical quotation review report.

9. An electronic device, comprising: Memory, used to store computer programs; A processor for reading and executing the computer program, characterized in that, when the processor executes the computer program, it implements the electrical quotation linkage review method based on a large model as described in any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the electrical quotation linkage review method based on a large model as described in any one of claims 1 to 7.

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