A hierarchical information interlocking method for railway management and control integration

Abstract

The present application provides a kind of railway management and control integrated layered information interlocking method, system is at least 3 layer structure, including production operation management information subsystem MIS, process control subsystem PC and field device subsystem FDS;Definition as follows: production operation system S;Production operation information o i ;Production operation chain l i ;Operation i1,i2=1,...,m1There is a string type chain relationship between i1,i2=1,...,m1iff, if and only if: system S production operation layered information interlocking iff: and there is only a serial chain relationship between the most; Layered information interlocking principle: information integrity;Information security;Information efficiency;Layered information interlocking rules include: scheduling rules of top information;Information interaction rules between different layers;Automatic execution rules of bottom information.The present application realizes the automatic preparation and adjustment of production operation plan, the automatic layering and feedback of production information, the automatic driving control system execution of production operation process, etc., to ensure the safety and efficiency of production operation.

Description

Technical Field

[0001] This invention provides a hierarchical information interlocking method for integrated railway management and control, belonging to the field of railway management and control technology. Background Technology

[0002] In railway signaling, station interlocking (Fu Shishan. Basic Knowledge of Railway Signaling, Lecture 1: From Station Interlocking to Information Interlocking [J]. Railway Communication and Signaling Engineering Technology, 2009, 6(2): 60-62.) refers to the technical means to ensure that signaling equipment can only operate or establish interrelationships according to certain procedures and conditions. The purpose of station interlocking is to ensure the safety of train operation and shunting within the station area by establishing interlocking relationships between signals, switches, and routes. With the development of railway informatization, traditional station interlocking technology can no longer meet the needs of railways for greater safety and efficiency. The goal should be to improve the safety and efficiency of production operations. From the entire lifecycle of production operation information collection, processing, transmission, and output, through information processing, mathematical optimization, and logical operations, the safety constraints between different levels of production operation information should be met before information can be output and the control system can be automatically executed.

[0003] The literature (Fu Shishan. Basic knowledge of railway signaling, Lecture 1: From station interlocking to information interlocking [J]. Railway Communication and Signaling Engineering Technology, 2009, 6(2): 60-62.) first proposed the concept of station information interlocking based on railway signal interlocking, and discussed how information interlocking technology can improve the safety of station operations from the aspects of setting safety conditions, information collection, and computer software logic processing. The literature (Ding Kun. Information interlocking technology [J]. Railway Communication and Signaling Engineering Technology, 2010, 7(5): 12-16. Li Kai. Research on the application of information interlocking technology in the signal control system of marshalling yard [J]. China Railway, 2011(1): 87-90.) applied information interlocking technology to the signal control system of marshalling yard, designed 7 information interlocking relationship chains, which together form a constraint network. The entire process of automatic execution of the route according to the plan is subject to the norms and restrictions from different links, which technically ensures the quality and safety of the production operation plan of the marshalling yard, and enables the scheduling plan to drive the automatic operation of the route control system. The literature (Wang Chengen, Song Guoning, Zhang Yu, et al. Process system architecture and information integration[J]. Acta Automatica Sinica, 2002, 28(4):575-580.) proposed a two-dimensional spatiotemporal architecture for the comprehensive integration of process systems. The time axis reflects the various stages of the system development life cycle, and the space axis reflects the five views that constitute the enterprise integrated system. Then, a process system information integration structure model for the entire life cycle, including information collection, processing, storage, transmission, utilization, feedback or regeneration, was established.

[0004] In summary, previous research has not systematically proposed a hierarchical information interlocking method integrating management and control from a theoretical and methodological perspective, nor has it established a hierarchical information interlocking model. Furthermore, it has not designed information interlocking principles from the perspectives of integrity, security, and efficiency, and has rarely proposed interlocking rules from the perspectives of top-level information scheduling, information interaction between different layers, and automatic execution of bottom-level information. Therefore, based on the above literature, this paper proposes a broader hierarchical information interlocking theory, establishes a hierarchical information interlocking security architecture and model, and proposes hierarchical information interlocking design principles and rules. Subsequently, the hierarchical information interlocking technology is applied to the production operation management of railway vehicle depots, improving the efficiency and security of production operation management and control. Summary of the Invention

[0005] The purpose of this invention is to provide a hierarchical information interlocking method for integrated railway management and control, which can improve the efficiency and safety of production operation management and control in railway vehicle depots.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows:

[0007] A hierarchical information interlocking method for integrated railway management and control comprises the following steps:

[0008] A. Make the following settings:

[0009] A1. The system has at least a 3-layer structure, including a Production Operation Management Information Subsystem (MIS), a Process Control Subsystem (PCS), and a Field Equipment Subsystem (FDS). The MIS has functions such as information collection and storage, resource allocation, and job scheduling. The PCS implements the job plan issued by the MIS by controlling the FDS.

[0010] A2. The system is workflow-driven, with most tasks having a chain-like temporal sequence, where the completion of the previous task is a necessary condition for the start of the next task.

[0011] B. Based on the above definitions, the following applies:

[0012] B1. The production operation system is a six-tuple S = (T, O, R, C, G, P), where:

[0013] (1) T is a time set;

[0014] (2) O is the set of production operations that need to be completed within T;

[0015] (3) R is the set of available resources within T;

[0016] (4) C is the set of rules that the system needs to follow when completing production operations;

[0017] (5) G is the set of controllable devices in the system;

[0018] (6) P is the set of system production operation locations.

[0019] B2. Production operation information is a six-tuple. in:

[0020] (1) This is the start time of the assignment;

[0021] (2) It is the time when the assignment ends;

[0022] (3)R i The set of resources consumed or occupied by the task;

[0023] (4)P i The work location;

[0024] (5)g i For the task object;

[0025] (6)s i The status is "Working".

[0026] B3. The production chain is a binary tuple. i =( · O i O i · ), i = 1, ..., m1, where:

[0027] (1) · O i It's homework. i The set of prerequisite tasks;

[0028] (2)O i · It's homework. i The set of post-jobs.

[0029] if , then o i This is called a front-end job, if , then o i This is called a backend job; if in · O i If the set contains only one element, then homework o i There is a unique prerequisite, if it is in O i · If the set contains only one element, then homework o i It has a unique rear placement.

[0030] B4. Homework There exists a chain-like relationship between them (if and only if):

[0031] (1) It has a unique rear position;

[0032] (2) There is a unique prerequisite;

[0033] (3)

[0034] Operation There exists a union-type chain relationship between them (iff): or

[0035] System S is a chain-like structure, iff: and There is only a chain-like relationship between them;

[0036] System S is a parallel chain, iff: and There is only a parallel chain relationship between them;

[0037] System S is a hybrid chain, i.e., there are both serial chain relationships and parallel chain relationships between jobs.

[0038] For a hybrid chain-like system S, in order for the production operation process to directly drive the execution of field equipment, it is necessary to layer the production operation information in S and establish interlocking relationships between each layer and between different layers. Let the production operation information be divided into n layers. The hierarchical information of the j-th (2≤j≤n) layer is denoted as

[0039] B5, System S Production Operation Layered Information Interlocking FIX: and There can only be a sequential chain relationship between them at most.

[0040] In order to enable the interlocking of hierarchical information in the production operations of System S, it is necessary to use various optimization decision-making and information logic processing methods based on the process relationships between production information to ensure the integrity, security and efficiency of production operation information.

[0041] The hierarchical information interlocking structure is a horizontally closed loop: production operation information must not only be layered downwards to be identifiable by the control system, but also feedback from lower layers to higher layers to update the status of production operation information based on the execution of the control system. To ensure that production operation information is interlocked, information interlocking principles and rules need to be defined, expressed as follows:

[0042]

[0043] in: It is a universal quantifier. Let L be an existential quantifier, and let L be a logical expression constructed by connecting logical predicates (with "∧", "or", "not "!", "implication "=>", "equivalence "<=>", "equal to "==").

[0044] C. Hierarchical Information Interlocking Principle

[0045] Principle 1: Information Integrity: To prevent the control system from malfunctioning or executing incorrectly due to incomplete information on lower-level production operations, the integrity of lower-level production operation information is represented as follows:

[0046]

[0047] This indicates that the end time of the underlying production operation information is later than the start time, and at least resources and equipment objects need to be allocated. For production operations The duration.

[0048] Principle 2: Information Security: The output of underlying information must ensure the safe execution of the control system. This means there should be no temporal or spatial conflicts between underlying production operation information, as shown below:

[0049]

[0050] This indicates that no two underlying production operation pieces of information will share resources at the same time. This indicates that resources will not be shared. This indicates that the tasks will not be performed simultaneously.

[0051] Principle 3: Information Efficiency: To improve the overall economic efficiency of the production operation system, an optimization objective function is added based on Principles 1 and 2:

[0052]

[0053] Represents: the maximum target sum of feasible production operation priorities, where When homework When feasible otherwise

[0054]

[0055] This indicates that the production operation in the system has the shortest duration.

[0056] To achieve the above principles, it is necessary to design interlocking rules for information processing to ensure the safe and efficient execution of the underlying production operation information-driven control system.

[0057] D. Hierarchical Information Interlocking Rules

[0058] D1. Scheduling rules for top-level information

[0059] In a hybrid chain system S, there is a necessary serial chain relationship between the top production operation information of the same object, but the information of different objects is in a parallel chain, which can lead to resource contention and time conflicts. Therefore, scheduling rules are needed to schedule jobs and allocate resources.

[0060] Rule 1 is the same as the four priority rules for objects:

[0061] After the start:

[0062]

[0063] Start and then end:

[0064]

[0065] After it ends, it begins:

[0066]

[0067] End after end:

[0068]

[0069] in: show Higher priority show and The objects being worked on are consistent; They represent and Minimum and maximum intervals between start times They represent Start Time Minimum and maximum interval between the end times They represent End time Minimum and maximum intervals between start times They represent and Minimum and maximum intervals between end times.

[0070] Rule 2 is the same as the object's job execution logic rule:

[0071]

[0072] Indicates: If production operation information If it has been implemented, then it indicates the work information. It has also been implemented, i.e., the operation. The implementation is an operation Necessary conditions for execution.

[0073] Rule 3: Reusable resource capacity limit rule between different objects:

[0074]

[0075] Indicates: If a set of job information is formed for different objects and a certain reusable resource At any time t∈T, the total number of resources occupied by all production operations is no more than the total capacity of these resources. in: For the set of reusable resources in the system, For production operations i Requires resources during implementation The number.

[0076] Rule 4: Non-reusable resource capacity limit rule between different objects:

[0077]

[0078] Indicates: If a set of job information is formed for different objects and a certain non-reusable resource At any time t∈T, the total amount of this resource consumed by production operations does not exceed the total capacity of this resource. in: For the set of non-reusable resources in the system, For production operations i Implementation requires the consumption of resources. The number.

[0079] The above four rules basically avoid conflicts between top-level production operation information. However, in order to improve the overall economic efficiency of the production operation system, some optimization objective functions are added on the basis of no conflict. The optimal solution with the highest efficiency or lowest cost is obtained through exact algorithms or heuristic algorithms.

[0080] D2. Rules for information exchange between different layers

[0081] Rule 5: Priority backtracking rule for intermediate production operation information of different categories: Production operation information with a parallel chain relationship at the top level has a unique execution order determined by the scheduling rules. Intermediate production operation information decomposed from the same upper level can be determined as a serial chain by rules 1 and 2. However, the order of intermediate production operation information that does not belong to the same upper level needs to be backtracked to the previous level to determine.

[0082]

[0083]

[0084] These respectively indicate: if the upper-level production operation Higher priority Then the lower-level production operations Higher priority on the contrary Low priority

[0085] Rule 6 is a rule for feeding back intermediate production operation information status upwards: the status of the lower-level production information changes according to the execution status of the equipment, and is eventually fed back to the top level layer by layer to change the information status and drive the execution of subsequent operations.

[0086]

[0087]

[0088]

[0089] These respectively indicate: the upper-level production operation starts as soon as the first production operation in the lower level begins; the upper-level production operation ends as soon as the last production operation in the lower level ends; and the upper-level production operation experiences an anomaly if any production operation in the lower level encounters an anomaly.

[0090] D3. Automatic Execution Rules for Bottom Information

[0091] The bottom-end production operation information is directly input to the control system to control the actions of the field equipment. There is a unique execution order among the bottom-end information according to rules 1 to 6. Each production operation has a definite start time and end time. Under normal circumstances, the execution in sequence will not cause interference or conflict. However, there is a deviation between the actual execution and the plan. It is necessary to further interlock the bottom-end production operation information to re-determine the timing of automatic execution.

[0092] Rule 7: Automatic Execution Timing of Bottom Information: The automatic execution timing of each production operation information is related to the actual state of the previous production operation, the idle state of resources, and the start time of this production operation.

[0093]

[0094] This means that the execution of this job is triggered only when the preceding job has been completed, the resources required by this job are available at the current time t, and this job can begin. Where: Resources used by this task Total capacity, O ρ For the purpose of consuming resources All job sets, For homework o i ∈O p Resource consumption Quantity; Resources consumed by this operation Total capacity, O ν For the need to consume resources All job sets, For homework o i ∈O ν Consume resources The quantity.

[0095] Compared with the prior art, the beneficial effects of the present invention are:

[0096] (1) The hierarchical information interlocking method decomposes the production operation information into a one-to-many hierarchical structure based on the chain relationship of production operations and the automatic execution requirements of the control system. Each layer of information and the information between layers generate chain and interaction relationships, so that the execution of each link of the system is closely linked. On this basis, the business requirements of the system can be continuously expanded.

[0097] (2) The hierarchical information interlocking method is designed with three information interlocking principles: integrity, security and efficiency. It effectively prevents the control system from being ineffective or erroneous due to incomplete production operation information at the bottom level, avoids time and space conflicts between production operation information at the bottom level, and improves the overall economic efficiency of the production operation system.

[0098] (3) The hierarchical information interlocking method proposes three types of interlocking rules: scheduling of top-level information, interaction of information between different layers, and automatic execution of bottom-level information. This avoids resource contention and time conflicts between parallel chain information, and allows the order of production operation information in the middle that does not belong to the same upper layer to be traced back to the upper layer information. This avoids the deviation between actual execution and plan, and allows the bottom-level production operation information to be directly input to the control system to control the action of field equipment, thus ensuring the safety and efficiency of control information.

[0099] (4) The hierarchical information interlocking method realizes the automatic compilation and adjustment of production operation plans, automatic hierarchical and feedback of production information, and automatic drive control system execution of production operation processes from the model and method level, thus ensuring the safety and efficiency of production operations.

[0100] In summary, this invention, as a hierarchical information interlocking method integrating management and control, decomposes production operation information into a one-to-many hierarchical structure. Each layer of information and the information between layers generate chain-like and interactive relationships. Then, three information interlocking principles—integrity, security, and efficiency—are designed, and three types of interlocking rules are proposed: scheduling of top-level information, interaction of information between different layers, and automatic execution of bottom-level information. This enables automatic compilation and adjustment of production operation plans, automatic hierarchical distribution and feedback of production information, and automatic drive control system execution of production operation processes, ensuring the safety and efficiency of production operations. Attached Figure Description

[0101] Figure 1 Production operation process for railway vehicle base;

[0102] Figure 2 This invention provides a one-to-many hierarchical structure for production operation information.

[0103] Figure 3 This invention relates to a hierarchical interlocking structure for production operation information;

[0104] Figure 4 The example illustrates a hierarchical information interlocking structure for production operations at a railway vehicle depot. Detailed Implementation

[0105] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0106] A hierarchical information interlocking method for integrated railway management and control comprises the following steps:

[0107] A. Operational procedures of railway vehicle depots

[0108] A railway vehicle depot (including depots and parking lots) is a logistical base for passenger car storage and maintenance, primarily responsible for train arrival and departure, vehicle maintenance, testing, cleaning, and driver attendance and departure. Railway vehicle depots are typical assembly line systems, and can achieve automation of work scheduling and railway signaling equipment control through layered information interlocking technology, thereby improving the operational efficiency of railway vehicle depots. Figure 1 The diagram shows the operational process of a railway vehicle depot.

[0109] Figure 1 The entire process of a single vehicle from entering the warehouse to undergoing a maintenance operation and then leaving the warehouse is a sequential chain. However, multiple vehicles and multiple maintenance operations are in a parallel chain relationship. Therefore, hierarchical information interlocking technology is needed to avoid resource usage conflicts and ensure the safety and efficiency of route processing.

[0110] B. Hierarchical Information Interlocking Model for Railway Vehicle Depots

[0111] like Figure 2 The diagram shows a one-to-many hierarchical structure for production operation information. Figure 3 The hierarchical information interlocking structure in it is a horizontal closed loop.

[0112] In this embodiment, the railway vehicle depot production operation information is progressively divided from the production chain layer into the process layer, step layer, instruction layer, and event layer. The relationship between the upper and lower layers is one-to-many, such as... Figure 4 The diagram shows the hierarchical information interlocking structure of production operations at a railway vehicle depot.

[0113] Figure 4 The production operation information is subdivided layer by layer from the production chain layer to the event layer:

[0114] (1) The production chain of a single vehicle includes three processes: train entry into the warehouse, vehicle operation, and train exit from the warehouse.

[0115] (2) One production process includes three steps: traveling to the work site, vehicle operation, and going to the depot.

[0116] (3) One work step contains several travel path instructions that can be recognized by the computer interlocking system;

[0117] (4) A path contains several events based on the instruction execution status.

[0118] These hierarchical information mainly include factors such as ID, trigger status, execution status, type, vehicle number, sequence number, source location, destination location, start time, and end time, forming a chain relationship to the right and downward. The rightward relationship refers to a certain serial chain relationship between different information in the same layer, while the downward relationship refers to the need to trace upwards to determine the production link relationship between information that has a parallel chain relationship in the same layer.

[0119] Based on the principle of hierarchical information interlocking, the integrity of vehicle, location, time, and personnel must be ensured throughout the entire production chain cycle. Information interlocking rules will be constrained in each production link and information decomposition step. If any factor is not met or not present, the process will be terminated to ensure the safety and correctness of the control system.

[0120] C. Hierarchical Information Interlocking Rules

[0121] C1. Scheduling rules for top-level information

[0122] The processing flow of vehicles at different production stages within the same level is a sequential chain relationship. Different vehicles within the same information level may be unrelated and independent parallel chain relationships. Due to limited resources, scheduling rules based on top-level information must be used. An optimization model and heuristic algorithm are established based on constraint-based scheduling theory to schedule the production operation information of the parallel chain relationship, optimizing vehicle maintenance plans, train entry / exit plans, and shunting plans. This maximizes resource utilization and operational efficiency at the macro-level top-level information. The scheduling rules and optimization model are established using vehicle maintenance operations at a railway vehicle depot as an example:

[0123]

[0124]

[0125] st

[0126]

[0127]

[0128]

[0129]

[0130]

[0131]

[0132] Where: N C N represents the number of vehicles. R This refers to the number of types of maintenance required. For vehicles c within the planned time frame T i Schedule maintenance j The maximum number of times; The maximum time range within which all maintenance can be scheduled within time range T; Indicates vehicle c i Is a first overhaul required? j When needed, o i,j,l =1, otherwise, o i,j,l =0; and Vehicle C i First overhaul j The start and end times; v i,j,k ∈{0,1} represents any vehicle c i At any time Is the scope of the inspection the same as the scope of the inspection? j If o i,j,l =1, then vi,j,k =1, otherwise v i,j,k =0; For maintenance j Minimum and maximum maintenance cycles; d j For r j Maintenance downtime; and For maintenance and The name of the species; a k and g k For t k The maintenance capacity of the shift team and the number of trains delivered to the main line.

[0133] Objective functions (37) and (38) respectively represent: maximizing the number of successfully scheduled maintenance operations; and maximizing the average utilization rate of vehicles. Constraints (40) to (45) respectively represent: the uniqueness constraint of maintenance operations; the maintenance cycle constraint; the constraint that the maintenance cycle limit of the minor maintenance operation must be met when a major maintenance operation is followed by a minor maintenance operation; the constraint that maintenance operations cannot be interrupted; the constraint that the major maintenance operation covers the minor maintenance operation; and the constraints of maintenance team capacity and the number of vehicles delivered to the main line.

[0134] Then, a hierarchical iterative algorithm is designed to solve the entire bi-objective optimization model, and a heuristic improved basic backtracking algorithm is designed to solve each objective function. Similarly, scheduling rules and optimization models for train entry / exit and shunting operations can be established, and heuristic algorithms can be designed to solve them.

[0135] C3. Rules for information exchange between different layers

[0136] Based on the rules governing information exchange between different layers, a Program Route Controller (PRC) is designed. This PRC utilizes the execution data of computer interlocking to obtain the execution status of instructions and feeds it back to the instruction layer through the event layer, enabling dynamic modification and automatic adjustment of the plan. The status change of each instruction is recorded through an event table and fed back upwards sequentially according to the following rules:

[0137] (1) Based on the serial chain relationship of several instructions in a process step, the start of the first instruction is the start of this process step, and the end of the last instruction represents the end of this process step. If a fault occurs during the execution of any instruction, it indicates that a fault has occurred in this process step.

[0138] (2) Based on the serial chain relationship of several steps in a process, the start of the first step is the start of the process, and the end of the last step represents the end of the process. If a fault occurs during the execution of any step, it means that the process has failed.

[0139] (3) Based on the serial chain relationship of several processes in a production chain, the start of the first process is the start of this production chain, and the end of the last process represents the end of this production chain. If a failure occurs during the execution of any process, it means that the production chain has failed.

[0140] C4. Automatic execution rules for bottom-level information

[0141] The production operation information of the railway vehicle depot is ultimately output to the computer interlocking system via instructions. These instructions summarize the requirements of different plans for all routes. First, the sequential chain of work steps is broken down into sets of instructions based on routes. The source and destination of each route in the instruction set are connected end-to-end to form the route's trace. Then, the source and destination of the route are converted into the start and end buttons for the interlocking system to process the route, thus completing the automatic execution process. Automatic execution requires hierarchical information interlocking rules to be implemented through logical operations to output trigger instructions. Generally, to ensure the safety of the computer interlocking system, at least the preceding instructions must be successfully executed, and the current route must be in an idle state before subsequent instructions will be triggered and executed sequentially.

Claims

1. A hierarchical information interlocking method for integrated railway management and control, characterized in that, Includes the following steps: A. Make the following settings: A1. The system has at least a 3-layer structure, including a Production Operation Management Information Subsystem (MIS), a Process Control Subsystem (PCS), and a Field Equipment Subsystem (FDS). The MIS has functions of information collection and storage, resource allocation, and job scheduling. The PCS implements the job plans issued by the MIS by controlling the FDS. A2. The system is a workflow-driven system, with a chain-like temporal sequence between tasks. The completion of the previous task is a necessary condition for the start of the next task. B. Based on the above definitions, the following applies: B1. Production Operation System ; B2. Production Operation Information ; B3. Production Operation Chain ; B4. Homework , , There exists a chain-like relationship iff if and only if: (1) It has a unique rear position; (2) There is a unique prerequisite; （3） ； Operation , , There exists a union-type chain relationship between them (iff): or ; system It is a chain-like structure, iff: and There is only a chain-like relationship between them; system It is a parallel chain, iff: and There is only a parallel chain relationship between them; system It is a hybrid chain structure, i.e., there are both serial chain relationships and parallel chain relationships between jobs; For hybrid chain systems In order to enable the production operation process to directly drive the execution of field equipment, The production operation information is hierarchically structured, and interlocking relationships are established between each layer of information and between different layers; the production operation information is defined as being divided into... layer, The hierarchical information of the j-th layer is denoted as... ; , ; B5, System Production operation hierarchical information interlocking iff: , , and There can only be a sequential chain relationship between them at most; C. Hierarchical Information Interlocking Principle Principle 1: Information integrity; Principle 2: Information security; Principle 3: Information efficiency; D. Hierarchical information interlocking rules; D1. Scheduling rules for top-level information; Hybrid chain system There is a necessary sequential chain relationship between the top-level production operation information of the same object, but the information of different objects is a parallel chain, which will cause resource contention and time conflicts. Scheduling rules are used to schedule jobs and allocate resources. Rule 1: Four priority rules for the same object: After the start: （6） Start and end: （7） After it ends, it begins: （8） End after end: （9） in: show Higher priority ; show and The objects being worked on are consistent; , They represent and Minimum and maximum intervals between start times , They represent Start Time Minimum and maximum interval between the end times , They represent End time Minimum and maximum intervals between start times , They represent and Minimum and maximum intervals between end times; Rule 2: Implementation logic rules for tasks involving the same object: （10） Indicates: If production operation information If it has been implemented, then it indicates the work information. It has also been implemented, i.e., the operation. The implementation is an operation Necessary conditions for execution; Rule 3: Reusable resource capacity limit rule between different objects: （11） Indicates: If a set of job information is formed for different objects and a certain reusable resource Anytime The total amount of resources used by all production operations shall not exceed the total capacity of this resource. ;in: For the set of reusable resources in the system, For production operations Requires resources during implementation The number; Rule 4: Limits the capacity of resources that cannot be reused between different objects. （12） Indicates: If a set of job information is formed for different objects and a certain non-reusable resource Anytime The total amount of this resource consumed in production operations shall not exceed the total capacity of this resource. ;in: For the set of non-reusable resources in the system, For production operations Implementation requires the consumption of resources. The number; D2. Rules for information exchange between different layers Rule 5 Priority Backtracking Rule for Intermediate Production Operation Information of Different Attributes: Production operation information with a parallel chain relationship at the top level has a unique execution order determined by the scheduling rules. Intermediate production operation information decomposed from the same upper level can be determined as a serial chain by Rules 1 and 2. However, the order of intermediate production operation information that does not belong to the same upper level needs to be determined by backtracking to the previous level. （13） （14） These respectively indicate: if the upper-level production operation Higher priority Then the lower-level production operations Higher priority ,on the contrary Low priority ; Rule 6: Upward feedback of intermediate production operation information status: The status of the lower-level production information changes according to the execution status of the equipment, and is eventually fed back to the top level layer by layer to change the information status and drive the execution of subsequent operations. （15） 16） （17） These respectively indicate: the upper-level production operation starts as soon as the first production operation in the lower level begins; the upper-level production operation ends as soon as the last production operation in the lower level ends; and the upper-level production operation experiences an error if any production operation in the lower level encounters an error. D3. Automatic Execution Rules for Bottom Information The bottom-end production operation information is directly input to the control system to control the actions of the field equipment. There is a unique execution order among the bottom-end information according to rules 1 to 6. Each production operation has a definite start time and end time. There is a deviation between the actual execution and the plan. The bottom-end production operation information is interlocked to re-determine the timing of automatic execution. Rule 7: Automatic Execution Timing of Bottom-Level Information: The automatic execution timing of each production operation information is related to the actual state of the previous production operation, the idle state of resources, and the start time of this production operation; （18） This indicates that only when the previous task has been completed and the current time is... This job will be triggered when the resources required for it are available and the job can begin; where: Resources used by this task Total capacity For the purpose of consuming resources All job sets, For homework Resource consumption Quantity; Resources consumed by this operation Total capacity For the need to consume resources All job sets, For homework Consume resources The quantity.

2. The hierarchical information interlocking method for integrated railway management and control according to claim 1, characterized in that, The specific definition of B is as follows: B1. The production operation system is a six-tuple. ,in: (1) For time sets; (2) for The set of production tasks that need to be completed internally; (3) for The set of resources available within; (4) This refers to the set of rules that the system needs to follow when completing production operations. (5) A collection of controllable devices in the system; (6) This refers to the collection of system production operation locations; B2. Production operation information is a six-tuple. , ,in: (1) This is the start time of the assignment; (2) It is the time when the assignment ends; (3) The set of resources consumed or occupied by the task; (4) The work location; (5) For the task object; (6) In operation status; B3. The production chain is a binary tuple. , ,in: (1) It's homework. The set of prerequisite tasks; (2) It's homework. The set of post-jobs; if ,So This is called a front-end job, if ,So This is called a backend job; if in If the set contains only one element, then the homework is... There is a unique prerequisite, if in If the set contains only one element, then the homework is... It has a unique rear position; B5, System Production operation hierarchical information interlocking iff: , , and There can only be a sequential chain relationship between them at most; In order to make the system Production operations are interlocked with hierarchical information, based on the process relationships between production information, using optimization decision-making and information logic processing methods; To ensure that production operation information is interlocked, information interlocking principles and rules are defined, expressed as follows: （1） in: It is a universal quantifier. It is an existential quantifier. A logical expression constructed by connecting logical predicates.

3. The hierarchical information interlocking method for integrated railway management and control according to claim 1, characterized in that, The specific hierarchical information interlocking principle of C is as follows: Principle 1: Information Integrity: To prevent the control system from malfunctioning or executing incorrectly due to incomplete information from lower-level production operations, the integrity of lower-level production operation information is represented as follows: （2） This indicates that the end time of the underlying production operation information is later than the start time, and at least resources and equipment objects need to be allocated. For production operations The duration; Principle 2: Information Security: The output of underlying information must ensure the safe execution of the control system. This means there should be no temporal or spatial conflicts between underlying production operation information, as shown below: 3） This indicates that no two underlying production operation pieces of information will share resources at the same time. This indicates that resources will not be shared. This indicates that the tasks will not be performed simultaneously; Principle 3: Information Efficiency: To improve the overall economic efficiency of the production operation system, an optimization objective function is added based on Principles 1 and 2: （4） Represents: the maximum target sum of feasible production operation priorities, where When homework When feasible ,otherwise ; （5） This indicates that the production cycle of all operations in the system is the shortest. To achieve the above principles, it is necessary to design interlocking rules for information processing to ensure the safe and efficient execution of the underlying production operation information-driven control system.

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