Paperless operation ticket execution method and system based on power station production management

Abstract

The invention discloses a paperless operation ticket execution method and system based on power station production management, and relates to the field of power production management. The method comprises the steps that an operator accesses a power station production management information system at an operation ticket terminal system to compile an operation ticket and submit the operation ticket for examination, and point cloud positioning is adopted to carry out data information transmission; the operator on duty performs operation ticket auditing on the power station production management information system, and the operator starts to operate item by item after the auditing is passed; and after the item-by-item operation is completed, the operation ticket terminal system automatically returns orders, and the state of the operation ticket is updated. According to the invention, operation order rapid approval, operation one-key application, order issuing and order returning are realized; the position and the operation progress of an on-site operator are remotely monitored in real time, the operator is prevented from walking at a wrong interval and misoperation, and the functions of remotely locking an operation order to stop operation, remotely alarming and the like are also achieved; the operation standardization is realized, the working efficiency of power station operators is greatly improved, the misoperation risk is reduced, and the personal safety of the operators and the safety of field equipment are guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of power production management, and in particular relates to a paperless operation ticket execution method and system based on power station production management. Background Art

[0002] With the rapid development of the power industry, the production management of power plants has become increasingly complex, which has put forward higher requirements for the management and execution efficiency of operation tickets. Traditional operation ticket management systems mostly use paper records and manual review, which is inefficient, error-prone, and inconvenient for data statistics and analysis. Therefore, applying advanced information technology to power plant production management and realizing paperless execution of operation tickets has become an inevitable trend in the development of the power industry.

[0003] In traditional industrial production processes, operation tickets are an important management tool used to guide operators to perform specific operation tasks. At present, the filling, delivery and execution of most power plant operation tickets usually rely on paper documents, which require operators to fill in, review, approve before starting work, and carry them during the execution process. This is not only inefficient, inconvenient data management, and has many safety hazards, but also not conducive to environmental protection and cost control. With the development of information technology, paperless operation ticket systems have become an effective means to improve industrial production efficiency, ensure safe production and reduce costs. The existing paperless operation ticket system still has deficiencies in integration, user interaction, remote and local information exchange, etc., and cannot guarantee the standardization and accuracy of on-site personnel's operations. There is a risk of misoperation, which affects on-site personal safety and equipment safety. Summary of the invention

[0004] In view of the above existing problems, the present invention is proposed. The present invention connects the operation ticket information of the terminal system of the on-site operator to the power plant production management information system and combines it with the image monitoring system, so as to realize functions such as rapid approval, one-key application, order, and reply, remote real-time monitoring of on-site operation progress, remote locking of operation tickets, and remote alarm, so as to realize the standardization of operation and operation, greatly improve the work efficiency of power plant operators, reduce the risk of misoperation, and ensure the personal safety of operators and the safety of on-site equipment.

[0005] In order to solve the above technical problems, a paperless operation ticket execution method based on power plant production management is proposed, including: The operator connects the operation ticket terminal system to the power plant production management information system to prepare the operation ticket and submit it for review, and uses point cloud positioning to transmit data information; the duty manager reviews the operation ticket on the power plant production management information system, and after the review is passed, the operator begins to operate item by item; after the operation is completed item by item, the operation ticket terminal system automatically responds and updates the operation ticket status.

[0006] As a preferred scheme of the paperless operation ticket execution method based on power plant production management described in the present invention, the preparation of the operation ticket includes collecting the information data of the operator and the starting time of the operation ticket preparation, and the operator's data information includes identity information data, timestamp data, biological data, and equipment status data.

[0007] The identity information data includes the operator's name, work number, position, and operating authority.

[0008] The timestamp data includes the preparation time, approval time, execution time and estimated completion time of the operation ticket, wherein the timestamp data is collected in real time in the power plant production management information system.

[0009] The biometric data includes operator fingerprint data.

[0010] The equipment status data includes equipment operating parameters, maintenance records, and fault history.

[0011] After the operator logs in to the power plant production management information system through fingerprint, the employee information database is called to obtain the identity information data. According to the current operator's operating authority, only the operation ticket types that the current operator has authority to display. The operator selects the operation ticket type and starts to compile operation ticket 1. The operation ticket status is updated to "in production". At the same time, the compilation start time is recorded and stored in the operation ticket folder and the execution time of the current operation ticket is started. When the operator completes the compilation, it is automatically saved to the operation ticket folder under the corresponding compilation time, and the compilation completion time is recorded. If the operator needs to apply for multiple operation tickets, it is consistent with the execution process of operation ticket 1. After all operation tickets are compiled, a safety review is carried out. When the safety review passes, the operation ticket is sent to the duty supervisor for review, and the operation ticket status is updated to "under review". When the safety review fails, the operation ticket is returned for correction according to the review result. Among them, when the execution time starts to be counted, the system calculates the estimated completion time of the current operation ticket based on the historical operation ticket data : , Among them, t represents the time difference between the start time of operation ticket preparation and the current calculation time point, is the number of historical operation tickets, is the number of device status data, i and j are variable indexes, is the execution time of the i-th historical operation ticket of the same type of operation ticket, is the complexity weight of the i-th historical operation ticket of the same type of operation ticket, is the influencing factor of the jth device status data of the device corresponding to the operation ticket, is the efficiency weight of the j-th device status data.

[0012] When the operator has limited operating authority, The value range is , when the operator has all permissions, then The value range is , when the device status is normal operation, then The value range is , when the device status is decreasing, then The value range is , when the device status is fault operation, then The value range is .

[0013] When the same person compiles n+1 operation tickets, the estimated completion time of the current operation ticket is extended according to the recorded completion time and the estimated completion time of the remaining n operation tickets: , in, The estimated completion time of n operation tickets except the current operation ticket. is the adjustment coefficient, which is used to control the influence of the estimated completion time of n operation tickets on the estimated completion time of the current operation ticket. is the adjusted estimated completion time.

[0014] As a preferred solution of the paperless operation ticket execution method based on power plant production management described in the present invention, wherein: the safety audit includes according to the compiled operation ticket, when it is saved in the operation ticket folder, the system automatically performs a safety audit, the preset operation ticket types are daily inspection and maintenance, routine operation, unconventional operation, emergency operation and key system operation, the operation ticket type is selected before making the operation ticket, the security level is one to five, when the operation ticket type is daily inspection and maintenance, the security level is divided into one, when the operation ticket type is routine operation, the security level is divided into two, when the operation ticket type is unconventional operation, the security level is divided into three, when the operation ticket type is emergency operation, the security level is divided into four, when the operation ticket type is key system operation, the security level is divided into five, and an error content check is performed: , in, Check whether there are any wrong calculation results in the operation ticket content. To filter and evaluate the content of the operation ticket, It is the characteristic parameter of the operation ticket content. is the number of characteristic parameters of the operation ticket content, In order to attenuate the error probability of the operation ticket content, is the attenuation coefficient, is the error detection function of the operation ticket content, used to detect whether there is an error in the operation ticket content. m is the number of error feature parameters of the operation ticket content.

[0015] Filter and evaluate the content of the operation ticket Expressed as: , in, is the i-th characteristic parameter of the operation ticket content, and It is the parameter of operation ticket type and security level. The five levels of parameters are 0.1, 0.2, 0.3, 0.4, and 0.5 respectively. Indicates the periodic characteristics of the content of the simulation operation ticket.

[0016] , in, is the jth error characteristic parameter of the operation ticket content, and q is the number of error characteristic parameters of the operation ticket content.

[0017] When E =0, it means there is no error in the operation ticket content. >0, it means there is an error in the operation ticket content, and The larger the value, the more serious the error. The operation ticket status is updated to "returned". The operation ticket ≠0 is returned to the operator interface. The value of indicates the error location. After the operator makes a modification, the system rechecks the error content until =0, after passing the security review, the operation ticket will be sent to the duty manager for review, and the operation ticket status will be updated to "under review".

[0018] As a preferred solution of the paperless operation ticket execution method based on power plant production management described in the present invention, the operation ticket review includes that when the operation ticket status is updated to "under review", the duty manager remotely reviews the operation ticket on the power plant production management information system. After the review is passed, the operator goes to the operation site and applies to start the operation. After receiving the operation application, the duty manager remotely verifies the operator's location through the operation ticket terminal positioning system and the image monitoring system. When the operator goes to the wrong interval, an alarm is issued and the operation ticket terminal is locked, the operation is terminated, and the operator adjusts the operation position and reapplies for the operation. When it is determined that the operator has not gone to the wrong interval, the duty manager agrees to the operation application, the operator starts the operation, and the operation ticket status is updated to "under operation".

[0019] After each step, the operator needs to confirm it on the operation ticket terminal system. After confirmation, the power plant production management information system will update the operation progress in real time, and issue an alarm when an item is missed or skipped. During the operation, the duty manager remotely issues an operation interruption command at any step. After the operation interruption command is issued, the on-site operation ticket terminal device will be locked. After the operation ticket terminal device is locked, the on-site operator cannot operate and needs to re-operate the operation ticket. When the operation reaches the operation item where an error occurs this time and the historical error rate is more than 80%, the system will issue an alarm prompt.

[0020] As a preferred solution of the paperless operation ticket execution method based on power plant production management described in the present invention, the point cloud positioning is used to transmit data information, including when the operator starts to make the operation ticket, the point cloud positioning is used to locate the operator's process, and the four types of data added, deleted, modified and checked by the operator are recorded, and the recorded data are screened for validity using Gaussian distribution: , in, The validity data is finally screened and input into the digital twin model; and is the parameter of the Gaussian distribution, which normalizes the data; p is the data point being evaluated, is another data point in the same data set, used to traverse all data points during the integration process; Q is the number of data points, and It is the parameter of sigmoid function for data filtering. is the value of the ith single data point.

[0021] After the point cloud locates the operator's operation, the positioning and tracking are carried out. Transfer to the constructed digital twin model to build the digital twin model: , in, Represents the constructed digital twin model, and Indicates the starting and ending positions of data during transmission. represents the area of ​​data transmission, and c is an iteration variable that represents the index of the sequence used when building the digital twin model.

[0022] when To establish a three-dimensional coordinate system through point cloud positioning and locate the operator's process: , in, is the validity data vector finally screened out for the i-th single data point, is the total number of points in the validity data point cloud, Represents the position vector of the i-th valid data point, represents the position vector of the valid data point to be evaluated in the power plant operation point cloud space, is the impact evaluation function, evaluating Impact in power stations. It means that the final screened effectiveness data is normalized.

[0023] In the digital twin model, the real-time transmitted data is saved and updated in real time, predictive maintenance is performed on the data, and the operation progress display and prediction results are fed back to the power plant production management information system. The duty manager monitors the operation based on the feedback results. When the feedback results show abnormalities, the duty manager remotely issues an operation interruption command or an alarm command at any step. After the operation interruption command is issued, the on-site operation ticket terminal equipment will be locked. The operation alarm command notifies the operator that there will be missing items and skipped items in the current operation path, and the operator is required to check the operation steps.

[0024] As a preferred solution of the paperless operation ticket execution method based on power plant production management described in the present invention, the predictive maintenance includes building a predictive maintenance model group including model 1 and model 2, and predicting potential failures and maintenance requirements of equipment through model 1: , in, is the predictive maintenance model 1, which represents the output equipment at time The probability of failure; is the equipment performance parameter, is the current time, To predict the start time, is the standard deviation of the performance parameter, reflecting the degree of fluctuation of equipment performance; is the ideal value for device performance, Represents the number of key performance indicators of the equipment, is the actual value of the i-th key performance indicator, is the upper threshold of the i-th key performance indicator, which depends on the device type; is the maintenance time factor, which indicates the impact of the equipment maintenance history on the current status. is the cumulative running time of the equipment, s represents the number of time periods into which the equipment is divided during operation. represents the reliability of the equipment in the i-th time period, Indicates the running time of the device in the i-th time period.

[0025] when When, it means the device is at the current time The risk of failure is low and the estimated completion time of the current operation ticket is Within the time, no malfunction will occur and the operation ticket can be produced normally.

[0026] when When, it means the device is at the current time The failure risk is high, and the estimated completion time of the current operation ticket is Failures will occur within a certain period of time, and an operation ticket template should be prepared in advance. When the operator starts to make the operation ticket, the operation ticket template should be updated in real time and saved in the database of the digital twin model. When a sudden failure occurs in the equipment and it is repaired, the power plant production management information system calls the template of the digital twin model database and performs the operation according to the last step of the operator before the failure.

[0027] The second model is used to predict the operator's operation path to determine whether there is a problem: , in, represents the probability that there is a problem on the path, represents the time variable, Indicates the number of operation steps, Indicates the operation steps In time The characteristic function of Indicates the operation steps In time The risk assessment function is: Expressed as: , in, represents the eigenvalue of the i-th operation step, Indicates time The characteristic mean function of Indicates time The characteristic variance function of represents the time window, represents the historical influence function of time τ.

[0028] Expressed as: , in, Indicates the number of current equipment risk factors, represents the weight of the j-th risk factor, represents the risk score of operation step i at time t and risk factor j.

[0029] when =0, it means there is no problem with the operation path. =1, it indicates that there is a high probability of missing items or skipping items in the operation path, and the system generates an alarm instruction to prompt the operator to check whether there are any missing items or skipping items in the operation process.

[0030] The results of the predictive maintenance model group and the progress display of the generated operation are fed back to the power plant production management information system. The duty manager monitors the operation based on the feedback results. or =1, the duty manager remotely issues an operation interruption command or an alarm command at any step. After the operation interruption command is issued, the on-site operation ticket terminal equipment will be locked. The operation alarm command notifies the operator that there will be missing items and skipped items in the current operation path, and the operator is required to check the operation steps.

[0031] As a preferred solution of the paperless operation ticket execution method based on power plant production management described in the present invention, wherein: the updating of the operation ticket status includes that when all operations have been completed, the operation ticket terminal system automatically replies, and at the same time the duty manager receives a reply prompt that the operation is "completed" on the power plant production management information system. After receiving the reply prompt that the operation is completed, the duty manager updates the operation ticket status to "completed", and saves all operation processes and data of the operation ticket to the operation folder under the corresponding compilation time, and directly calls it when a problem occurs.

[0032] When an operation interruption command is issued, the operation ticket terminal system automatically replies "interrupted". At the same time, the duty manager receives a reply prompt on the power plant production management information system indicating that the interruption operation is completed. The previous operation is canceled and the on-site operation ticket terminal equipment is locked until the duty manager issues a contact interruption command, and then returns to the first step to re-make or operate.

[0033] When an interruption occurs due to equipment and system problems, the operation ticket terminal system automatically returns an "abnormal" command and sends an alarm to the duty manager. The steps before the command is returned are saved in the digital twin model. When the fault is repaired, the power plant production management information system calls the digital twin model database and performs the operation according to the last step of the operator before the fault.

[0034] When in the "Making", "Returning", or "Operating" states, the processing time exceeds When the operator needs to re-operate, he needs to apply to the duty manager again and verify the identity information data to prevent different operators from operating the same operation ticket. When the duty manager replies "agree", the system directly calls the operation ticket corresponding to the compilation time in the unfinished operation folder to continue the operation. When the duty manager replies "disagree", the operator needs to re-make the operation ticket for the review process.

[0035] Another object of the present invention is to provide a paperless operation ticket execution system based on power plant production management. The paperless operation ticket execution system based on power plant production management of the present invention realizes paperless execution of operation tickets through the interaction between the operation ticket preparation module, the operation ticket review module and the operation ticket maintenance and update module, thereby improving the efficiency and safety of operation. The system can monitor the operation progress in real time, maintain and update the status of the operation ticket, and resume operation after the fault is repaired. In addition, the system also has a predictive maintenance function, which can promptly discover and handle problems that may occur during the operation process, thereby improving the production efficiency and safety of the power plant. Through this interaction between modules, the system solves the problems of low efficiency, easy errors and inconvenience of data statistical analysis in the execution process of traditional paper operation tickets, and provides strong support for the informatization and intelligence of power plant production management.

[0036] As a preferred solution of the paperless operation ticket execution system based on power plant production management described in the present invention, it is characterized by including an operation ticket preparation module, an operation ticket review module and an operation ticket maintenance and update module.

[0037] In the operation ticket preparation module, the operator logs into the system, selects the operation ticket type, enters the operation ticket content, and submits the operation ticket to the operation ticket review module, while recording the preparation time and completion time of the operation ticket and calculating the estimated total completion time.

[0038] The operation ticket review module includes a security review unit and a duty manager review unit. After the security review is passed, the operation ticket is sent to the duty manager for review. The duty manager receives the operation ticket submitted by the operator and reviews the content of the operation ticket. After the review is passed, the operator starts to execute the operation ticket. During the execution process, the duty manager remotely monitors the operation progress and authorizes the issuance of operation interruption instructions and alarm instructions.

[0039] The operation ticket maintenance and update module is responsible for maintaining and updating the status of the operation ticket. When the operator completes all operation steps, this module automatically returns the command and updates the operation ticket status to "completed". If equipment and system problems occur during the operation, the executed steps are saved, and the operation is resumed after the fault is repaired, and predictive maintenance is performed on the entire system.

[0040] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and is characterized in that when the processor executes the computer program, the steps of the method described in the paperless operation ticket execution based on power plant production management are implemented.

[0041] A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the method described in the paperless operation ticket execution based on power plant production management are implemented.

[0042] The beneficial effects of the present invention are as follows: the present invention realizes rapid approval of operation tickets, and one-click application, ordering and replying of operations; remote real-time monitoring of the location and operation progress of on-site operators to prevent operators from going to the wrong interval and making wrong operations, and also has functions such as remote locking of operation tickets to terminate operations and remote alarms; realizes standardization of operation operations, greatly improves the work efficiency of power station operators, reduces the risk of wrong operations, and ensures the personal safety of operators and the safety of on-site equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which: Figure 1 An overall flow chart of a paperless operation ticket execution method based on power plant production management provided by an embodiment of the present invention.

[0044] Figure 2 A system solution design diagram of a paperless operation ticket execution system based on power plant production management provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0045] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0046] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0048] The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0049] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Example 1, reference Figure 1 , which is the first embodiment of the present invention, and provides a paperless operation ticket execution method based on power plant production management, comprising: S1: The operator accesses the power plant production management information system through the operation ticket terminal system to prepare the operation ticket and submit it for review, and uses point cloud positioning for data information transmission.

[0052] Furthermore, the operator's information data and the start time of the operation ticket preparation are collected. The operator's data information includes identity information data, timestamp data, biometric data, and equipment status data.

[0053] The identity information data includes the operator's name, work number, position, and operating authority.

[0054] The timestamp data includes the preparation time, approval time, execution time and estimated completion time of the operation ticket, wherein the timestamp data is collected in real time in the power plant production management information system.

[0055] The biometric data includes operator fingerprint data.

[0056] The equipment status data includes equipment operating parameters, maintenance records, and fault history.

[0057] After the operator logs in to the power plant production management information system through fingerprint, the employee information database is called to obtain the identity information data. According to the current operator's operating authority, only the operation ticket types that the current operator has authority to display. The operator selects the operation ticket type and starts to compile operation ticket 1. The operation ticket status is updated to "in production". At the same time, the compilation start time is recorded and stored in the operation ticket folder and the execution time of the current operation ticket is started. When the operator completes the compilation, it is automatically saved to the operation ticket folder under the corresponding compilation time, and the compilation completion time is recorded. If the operator needs to apply for multiple operation tickets, it is consistent with the execution process of operation ticket 1. After all operation tickets are compiled, a safety review is carried out. When the safety review passes, the operation ticket is sent to the duty supervisor for review, and the operation ticket status is updated to "under review". When the safety review fails, the operation ticket is returned for correction according to the review result. Among them, when the execution time starts to be counted, the system calculates the estimated completion time of the current operation ticket based on the historical operation ticket data : , Among them, t represents the time difference between the start time of operation ticket preparation and the current calculation time point, is the number of historical operation tickets, is the number of device status data, i and j are variable indexes, is the execution time of the i-th historical operation ticket of the same type of operation ticket, is the complexity weight of the i-th historical operation ticket of the same type of operation ticket, is the influencing factor of the jth device status data of the device corresponding to the operation ticket, is the efficiency weight of the j-th device status data.

[0058] When the operator has limited operating authority, The value range is , when the operator has all permissions, then The value range is , when the device status is normal operation, then The value range is , when the device status is decreasing, then The value range is , when the device status is fault operation, then The value range is .

[0059] When the same person compiles n+1 operation tickets, the estimated completion time of the current operation ticket is extended according to the recorded completion time and the estimated completion time of the remaining n operation tickets: , in, The estimated completion time of n operation tickets except the current operation ticket. is the adjustment coefficient, which is used to control the influence of the estimated completion time of n operation tickets on the estimated completion time of the current operation ticket. is the adjusted estimated completion time.

[0060] It should be noted that for the complexity weight : High weight range (0.7 to 1), for operation tickets with very high complexity, the present invention ensures that the estimated completion time more accurately reflects the actual time required, which is used to better plan the workflow and ensure that sufficient time and resources are allocated when executing complex operation tickets, thereby improving work efficiency and accuracy; Medium weight range (0.3 to 0.7), for operation tickets with medium complexity, the present invention balances the execution time and resource allocation to ensure that there will be no delays or errors during the operation due to being too simple or too complex.

[0061] For efficiency weight : High weight range (0.8 to 1), for the case where the equipment status is very good, the present invention ensures that the estimated completion time more accurately reflects the actual time required under the high-efficiency equipment status, utilizes the high performance of the equipment, and improves operational efficiency and accuracy; Medium weight range (0.5 to 0.8), the present invention balances the impact of execution time and equipment performance, ensuring that there will be no delays or errors during operation due to fluctuations in equipment performance; Low weight range (0.2 to 0.5): The present invention can reduce excessive impact on the overall execution time and ensure that the focus is on those situations where the equipment status is good, which has a greater impact on workflow and safety.

[0062] It should also be noted that according to the prepared operation ticket, when it is saved in the operation ticket folder, the system automatically performs a security audit. The preset operation ticket types are daily inspection and maintenance, routine operation, non-routine operation, emergency operation and key system operation. Before making the operation ticket, select the operation ticket type, and the security level is level one to level five. When the operation ticket type is daily inspection and maintenance, the security level is level one, when the operation ticket type is routine operation, the security level is level two, when the operation ticket type is non-routine operation, the security level is level three, when the operation ticket type is emergency operation, the security level is level four, when the operation ticket type is key system operation, the security level is level five, and an error content check is performed: , in, Check whether there are any wrong calculation results in the operation ticket content. To filter and evaluate the content of the operation ticket, It is the characteristic parameter of the operation ticket content. is the number of characteristic parameters of the operation ticket content, In order to attenuate the error probability of the operation ticket content, is the attenuation coefficient, is the error detection function of the operation ticket content, used to detect whether there is an error in the operation ticket content. m is the number of error feature parameters of the operation ticket content.

[0063] Filter and evaluate the content of the operation ticket Expressed as: , in, is the i-th characteristic parameter of the operation ticket content, and It is the parameter of operation ticket type and security level. The five levels of parameters are 0.1, 0.2, 0.3, 0.4, and 0.5 respectively. Indicates the periodic characteristics of the content of the simulation operation ticket.

[0064] , in, is the jth error characteristic parameter of the operation ticket content, and q is the number of error characteristic parameters of the operation ticket content.

[0065] when =0, it means there is no error in the operation ticket content. >0, it means there is an error in the operation ticket content, and The larger the value, the more serious the error. The operation ticket status is updated to "returned". The operation ticket ≠0 is returned to the operator interface. The value of indicates the error location. After the operator makes a modification, the system rechecks the error content until =0, after passing the security review, the operation ticket will be sent to the duty manager for review, and the operation ticket status will be updated to "under review".

[0066] It should also be noted that when the operator starts to make an operation ticket, point cloud positioning is used to locate the operator's process, and the four types of data that the operator adds, deletes, modifies and checks are recorded, and Gaussian distribution is used to screen the recorded data for validity: , in, The validity data is finally screened and input into the digital twin model; and is the parameter of the Gaussian distribution, which normalizes the data; p is the data point being evaluated, is another data point in the same data set, used to traverse all data points during the integration process; Q is the number of data points, and It is the parameter of sigmoid function for data filtering. is the value of the ith single data point.

[0067] After the point cloud locates the operator's operation, the positioning and tracking are carried out. Transfer to the constructed digital twin model to build the digital twin model: , in, Represents the constructed digital twin model, and Indicates the starting and ending positions of data during transmission. represents the area of ​​data transmission, and c is an iteration variable that represents the index of the sequence used when building the digital twin model.

[0068] when To establish a three-dimensional coordinate system through point cloud positioning and locate the operator's process: , in, is the validity data vector finally screened out for the i-th single data point, is the total number of points in the validity data point cloud, Represents the position vector of the i-th valid data point, represents the position vector of the valid data point to be evaluated in the power plant operation point cloud space, is the impact evaluation function, evaluating Impact in power stations. It means that the final screened effectiveness data is normalized.

[0069] In the digital twin model, the real-time transmitted data is saved and updated in real time, predictive maintenance is performed on the data, and the operation progress display and prediction results are fed back to the power plant production management information system. The duty manager monitors the operation based on the feedback results. When the feedback results show abnormalities, the duty manager remotely issues an operation interruption command or an alarm command at any step. After the operation interruption command is issued, the on-site operation ticket terminal equipment will be locked. The operation alarm command notifies the operator that there will be missing items and skipped items in the current operation path, and the operator is required to check the operation steps.

[0070] Preferably, the predictive maintenance model group includes model 1 and model 2, and the model 1 is used to predict the potential failure and maintenance requirements of the equipment: , in, is the predictive maintenance model 1, which represents the output equipment at time The probability of failure; is the equipment performance parameter, is the current time, To predict the start time, is the standard deviation of the performance parameter, reflecting the degree of fluctuation of equipment performance; is the ideal value for device performance, Represents the number of key performance indicators of the equipment, is the actual value of the i-th key performance indicator, is the upper threshold of the i-th key performance indicator, which depends on the device type; is the maintenance time factor, which indicates the impact of the equipment maintenance history on the current status. is the cumulative running time of the equipment, s represents the number of time periods into which the equipment is divided during operation. represents the reliability of the equipment in the i-th time period, Indicates the running time of the device in the i-th time period.

[0071] when When, it means the device is at the current time The risk of failure is low and the estimated completion time of the current operation ticket is Within the time, no malfunction will occur and the operation ticket can be produced normally.

[0072] when When, it means the device is at the current time The failure risk is high, and the estimated completion time of the current operation ticket is Failures will occur within a certain period of time, and an operation ticket template should be prepared in advance. When the operator starts to make the operation ticket, the operation ticket template should be updated in real time and saved in the database of the digital twin model. When a sudden failure occurs in the equipment and it is repaired, the power plant production management information system calls the template of the digital twin model database and performs the operation according to the last step of the operator before the failure.

[0073] The second model is used to predict the operator's operation path to determine whether there is a problem: , in, represents the probability that there is a problem on the path, represents the time variable, Indicates the number of operation steps, Indicates the operation steps In time The characteristic function of Indicates the operation steps In time The risk assessment function is: Expressed as: , in, represents the eigenvalue of the i-th operation step, Indicates time The characteristic mean function of Indicates time The characteristic variance function of represents the time window, represents the historical influence function of time τ.

[0074] Expressed as: , in, Indicates the number of current equipment risk factors, represents the weight of the j-th risk factor, represents the risk score of operation step i at time t and risk factor j.

[0075] when =0, it means there is no problem with the operation path. =1, it indicates that there is a high probability of missing items or skipping items in the operation path, and the system generates an alarm instruction to prompt the operator to check whether there are any missing items or skipping items in the operation process.

[0076] The results of the predictive maintenance model group and the progress display of the generated operation are fed back to the power plant production management information system. The duty manager monitors the operation based on the feedback results. or =1, the duty manager remotely issues an operation interruption command or an alarm command at any step. After the operation interruption command is issued, the on-site operation ticket terminal equipment will be locked. The operation alarm command notifies the operator that there will be missing items and skipped items in the current operation path, and the operator is required to check the operation steps.

[0077] S2: The duty manager reviews the operation ticket on the power plant production management information system. After the review is passed, the operator begins to operate item by item.

[0078] Furthermore, when the operation ticket status is updated to "under review", the duty manager remotely reviews the operation ticket on the power plant production management information system. After the review is passed, the operator goes to the operation site and applies to start the operation. After receiving the operation application, the duty manager remotely verifies the operator's location through the operation ticket terminal positioning system and the image monitoring system. When the operator goes to the wrong interval, an alarm is issued and the operation ticket terminal is locked, the operation is terminated, and the operator adjusts the operation position and reapplies for the operation. When it is determined that the operator has not gone to the wrong interval, the duty manager agrees to the operation application, the operator starts the operation, and the operation ticket status is updated to "under operation".

[0079] After each step, the operator needs to confirm it on the operation ticket terminal system. After confirmation, the power plant production management information system will update the operation progress in real time, and issue an alarm when an item is missed or skipped. During the operation, the duty manager remotely issues an operation interruption command at any step. After the operation interruption command is issued, the on-site operation ticket terminal device will be locked. After the operation ticket terminal device is locked, the on-site operator cannot operate and needs to re-operate the operation ticket. When the operation reaches the operation item where an error occurs this time and the historical error rate is more than 80%, the system will issue an alarm prompt.

[0080] S3: After each operation is completed, the operation ticket terminal system automatically responds and updates the operation ticket status.

[0081] Furthermore, when all operations are completed, the operation ticket terminal system automatically replies, and at the same time, the duty manager receives a reply prompt that the operation is "completed" on the power plant production management information system. After receiving the reply prompt that the operation is completed, the duty manager updates the operation ticket status to "completed" and saves all the operation processes and data of the operation ticket to the operation folder under the corresponding compilation time. When a problem occurs, it can be directly called.

[0082] When an operation interruption command is issued, the operation ticket terminal system automatically replies "interrupted". At the same time, the duty manager receives a reply prompt on the power plant production management information system indicating that the interruption operation is completed. The previous operation is canceled and the on-site operation ticket terminal equipment is locked until the duty manager issues a contact interruption command, and then returns to the first step to re-make or operate.

[0083] When an interruption occurs due to equipment and system problems, the operation ticket terminal system automatically returns an "abnormal" command and sends an alarm to the duty manager. The steps before the command is returned are saved in the digital twin model. When the fault is repaired, the power plant production management information system calls the digital twin model database and performs the operation according to the last step of the operator before the fault.

[0084] When in the "Making", "Returning", or "Operating" states, the processing time exceeds When the operator needs to re-operate, he needs to apply to the duty manager again and verify the identity information data to prevent different operators from operating the same operation ticket. When the duty manager replies "agree", the system directly calls the operation ticket corresponding to the compilation time in the unfinished operation folder to continue the operation. When the duty manager replies "disagree", the operator needs to re-make the operation ticket for the review process.

[0085] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

[0086] Example 2, an embodiment of the present invention, provides a paperless operation ticket execution method based on power plant production management. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through experiments.

[0087] The test subjects are set as operators of a medium-sized power station, a total of 10 people, divided into two groups, one group uses the traditional operation ticket execution method, and the other group uses the paperless operation ticket execution method provided by the present invention. The test time is one month, during which the data such as the preparation time, execution time, error rate, and safety events of the operation ticket are recorded.

[0088] Table 1 shows the simulated data of the test results, showing the comparison of the performance of the two groups of operators in different aspects; Table 1 Test subjects Compilation time Execution time Error rate Number of security incidents Traditional operation ticket group 15.2min 45.6min 12% 8 Paperless operation ticket group 8.50min 32.1min 5% 2 It can be seen from the above data that the paperless operation ticket execution method is superior to the traditional operation ticket group in terms of preparation time, execution time, error rate and number of safety events. In particular, the paperless operation ticket group reduced the error rate by 7 percentage points, significantly improving the operation safety. In addition, the preparation and execution time of the paperless operation ticket were reduced by 43% and 30% respectively, greatly improving the efficiency of power plant operation.

[0089] In summary, the paperless operation ticket execution method of the present invention has shown significant innovation and advantages in power plant production management. It not only improves operational efficiency and safety, but also reduces the operational error rate by optimizing the operation process, introducing safety audits and predictive maintenance, and provides strong support for the stable operation of the power plant.

[0090] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

[0091] Embodiment 3, the third embodiment of the present invention, is different from the first two embodiments in that: If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0092] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0093] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0094] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0095] Example 4, reference Figure 2 , which is the fourth embodiment of the present invention, provides a paperless operation ticket execution system based on power plant production management, including an operation ticket preparation module, an operation ticket review module, and an operation ticket maintenance and update module.

[0096] Operation ticket preparation module: in this module, the operator logs into the system, selects the operation ticket type, enters the operation ticket content, and submits the operation ticket to the operation ticket review module. At the same time, the preparation time and completion time of the operation ticket are recorded, and the estimated total completion time is calculated.

[0097] The operation ticket review module includes a security review unit and a duty manager review unit. After the security review is passed, the operation ticket is sent to the duty manager for review. The duty manager receives the operation ticket submitted by the operator and reviews the content of the operation ticket. After the review is passed, the operator starts to execute the operation ticket. During the execution process, the duty manager remotely monitors the operation progress and is authorized to issue operation interruption instructions and alarm instructions.

[0098] The operation ticket maintenance and update module is responsible for maintaining and updating the status of the operation ticket. When the operator completes all operation steps, this module automatically returns the command and updates the operation ticket status to "Completed". If equipment and system problems occur during the operation, the executed steps are saved, and the operation is resumed after the fault is repaired, and predictive maintenance is performed on the entire system.

[0099] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A paperless operation ticket execution method based on power plant production management, characterized in that: include, The operator accesses the power plant production management information system through the operation ticket terminal system to prepare the operation ticket and submit it for review, and uses point cloud positioning for data information transmission; The duty manager reviews the operation ticket on the power plant production management information system. After the review is passed, the operator begins to operate item by item; After each operation is completed, the operation ticket terminal system automatically responds and updates the operation ticket status.

2. A paperless operation ticket execution method based on power plant production management as claimed in claim 1, characterized in that: The preparation of the operation ticket includes collecting the operator's information data and the start time of the operation ticket preparation, and the operator's data information includes identity information data, timestamp data, biological data, and equipment status data; The identity information data includes the operator's name, work number, position, and operating authority; The timestamp data includes the preparation time, approval time, execution time and estimated completion time of the operation ticket, wherein the timestamp data is collected in real time in the power plant production management information system; The biometric data includes operator fingerprint data; The equipment status data includes equipment operating parameters, maintenance records, and fault history; After the operator logs in to the power plant production management information system through fingerprint, the employee information database is called to obtain the identity information data. According to the current operator's operating authority, only the operation ticket types that the current operator has authority to display are displayed. The operator selects the operation ticket type to start compiling operation ticket 1. The operation ticket status is updated to "in preparation". At the same time, the compilation start time is recorded and stored in the operation ticket folder and the execution time of the current operation ticket is started. When the operator completes the compilation, it is automatically saved to the operation ticket folder under the corresponding compilation time, and the compilation completion time is recorded. If the operator needs to apply for multiple operation tickets, it is consistent with the execution process of operation ticket 1. After all operation tickets are compiled, a safety review is carried out. When the safety review passes, the operation ticket is sent to the duty supervisor for review, and the operation ticket status is updated to "under review". When the safety review fails, the operation ticket is returned for correction according to the review result. Among them, when the execution time starts to be counted, the system calculates the estimated completion time of the current operation ticket based on the historical operation ticket data : ， Among them, t represents the time difference between the start time of operation ticket preparation and the current calculation time point, is the number of historical operation tickets, is the number of device status data, i and j are variable indexes, is the execution time of the i-th historical operation ticket of the same type of operation ticket, is the complexity weight of the i-th historical operation ticket of the same type of operation ticket, is the influencing factor of the jth device status data of the device corresponding to the operation ticket, is the efficiency weight of the j-th device status data; When the operator has limited operating authority, The value range is , when the operator has all permissions, then The value range is , when the device status is normal operation, then The value range is , when the device status is decreasing, then The value range is , when the device status is fault operation, then The value range is ; When the same person compiles n+1 operation tickets, the estimated completion time of the current operation ticket is extended according to the recorded completion time and the estimated completion time of the remaining n operation tickets: ， in, is the estimated completion time of n operation tickets except the current operation ticket; is the adjustment coefficient, which is used to control the influence of the estimated completion time of n operation tickets on the estimated completion time of the current operation ticket. is the adjusted estimated completion time.

3. A paperless operation ticket execution method based on power plant production management as claimed in claim 2, characterized in that: The security audit includes that according to the prepared operation ticket, when it is saved in the operation ticket folder, the system automatically conducts a security audit. The preset operation ticket types are daily inspection and maintenance, routine operation, unconventional operation, emergency operation and key system operation. The operation ticket type is selected before making the operation ticket. The security level is level one to level five. When the operation ticket type is daily inspection and maintenance, the security level is level one. When the operation ticket type is routine operation, the security level is level two. When the operation ticket type is unconventional operation, the security level is level three. When the operation ticket type is emergency operation, the security level is level four. When the operation ticket type is key system operation, the security level is level five, and error content check is performed: ， in, Check whether there are any wrong calculation results in the operation ticket content. To filter and evaluate the content of the operation ticket, It is the characteristic parameter of the operation ticket content. is the number of characteristic parameters of the operation ticket content, In order to attenuate the error probability of the operation ticket content, is the attenuation coefficient, is the error detection function of the operation ticket content, used to detect whether there is an error in the operation ticket content; m is the number of error feature parameters of the operation ticket content; Filter and evaluate the content of the operation ticket Expressed as: ， in, is the i-th characteristic parameter of the operation ticket content, and It is the parameter of operation ticket type and security level. The parameters of the five levels are 0.1, 0.2, 0.3, 0.4, and 0.5 respectively; Indicates the periodic characteristics of the simulated operation ticket content; ， in, is the jth error characteristic parameter of the operation ticket content, and q is the number of error characteristic parameters of the operation ticket content; when = 0, it means there is no error in the operation ticket content. > 0, it means there is an error in the operation ticket content, and The larger the value, the more serious the error. The operation ticket status is updated to "returned". The operation ticket ≠0 is returned to the operator interface. The value of indicates the error location. After the operator makes a modification, the system rechecks the error content until =0, after passing the security review, the operation ticket will be sent to the duty manager for review, and the operation ticket status will be updated to "under review".

4. A paperless operation ticket execution method based on power plant production management as claimed in claim 3, characterized in that: The operation ticket review includes that when the operation ticket status is updated to "under review", the duty manager remotely reviews the operation ticket on the power plant production management information system. After the review is passed, the operator goes to the operation site and applies to start the operation. After receiving the operation application, the duty manager remotely verifies the location of the operator through the operation ticket terminal positioning system and the image monitoring system. When the operator goes to the wrong interval, an alarm is issued and the operation ticket terminal is linked to lock, and the operation is terminated. The operator adjusts the operation position and reapplies for the operation. When it is determined that the operator has not gone to the wrong interval, the duty manager agrees to the operation application, the operator starts the operation, and the operation ticket status is updated to "under operation"; After each step, the operator needs to confirm it on the operation ticket terminal system. After confirmation, the power plant production management information system will update the operation progress in real time, and issue an alarm when an item is missed or skipped. During the operation, the duty manager remotely issues an operation interruption command at any step. After the operation interruption command is issued, the on-site operation ticket terminal device will be locked. After the operation ticket terminal device is locked, the on-site operator cannot operate and needs to re-operate the operation ticket. When the operation reaches the operation item where an error occurs this time and the historical error rate is more than 80%, the system will issue an alarm prompt.

5. A paperless operation ticket execution method based on power plant production management as claimed in claim 4, characterized in that: The point cloud positioning is used to transmit data information, including when the operator starts to make an operation ticket, the point cloud positioning is used to locate the operator's process, and the four types of data added, deleted, modified and checked by the operator are recorded, and the recorded data are screened for validity using Gaussian distribution: ， in, The validity data is finally screened and input into the digital twin model; and is the parameter of the Gaussian distribution, which normalizes the data; p is the data point being evaluated, is another data point in the same data set, used to traverse all data points during the integration process; Q is the number of data points, and It is the parameter of sigmoid function for data filtering. is the value of the i-th single data point; After the point cloud locates the operator's operation, the positioning and tracking are carried out. Transfer to the constructed digital twin model to build the digital twin model: ， in, Represents the constructed digital twin model, and Indicates the starting and ending positions of data during transmission. represents the area of ​​data transmission, c is an iteration variable, which represents the index of the sequence used when building the digital twin model; when To establish a three-dimensional coordinate system through point cloud positioning and locate the operator's process: ， in, is the validity data vector finally screened out for the i-th single data point, is the total number of points in the validity data point cloud, Represents the position vector of the i-th valid data point, represents the position vector of the valid data point to be evaluated in the power plant operation point cloud space, is the impact evaluation function, evaluating Impact in power stations; It means that the final screened effectiveness data is normalized; In the digital twin model, the real-time transmitted data is saved and updated in real time, predictive maintenance is performed on the data, and the operation progress display and prediction results are fed back to the power plant production management information system. The duty manager monitors the operation based on the feedback results. When the feedback results show abnormalities, the duty manager remotely issues an operation interruption command or an alarm command at any step. After the operation interruption command is issued, the on-site operation ticket terminal equipment will be locked. The operation alarm command notifies the operator that there will be missing items and skipped items in the current operation path, and the operator is required to check the operation steps.

6. A paperless operation ticket execution method based on power plant production management as claimed in claim 5, characterized in that: The predictive maintenance includes building a predictive maintenance model group including model 1 and model 2, and predicting potential failures and maintenance requirements of equipment through model 1: ， in, is the predictive maintenance model 1, which represents the output equipment at time The probability of failure; is the equipment performance parameter, is the current time, To predict the start time, is the standard deviation of the performance parameter, reflecting the degree of fluctuation of equipment performance; is the ideal value for device performance, Represents the number of key performance indicators of the equipment, is the actual value of the i-th key performance indicator, is the upper threshold of the i-th key performance indicator, which depends on the device type; is the maintenance time factor, which indicates the impact of the equipment maintenance history on the current status. is the cumulative running time of the equipment, s represents the number of time periods into which the equipment is divided during operation. represents the reliability of the equipment in the i-th time period, Indicates the running time of the equipment in the i-th time period; when When, it means the device is at the current time The risk of failure is low and the estimated completion time of the current operation ticket is Within the time, no failure will occur and the operation ticket can be produced normally; when When, it means the device is at the current time The failure risk is high, and the estimated completion time of the current operation ticket is Failures will occur within a certain period of time. An operation ticket template is prepared in advance. When the operator starts to make the operation ticket, the operation ticket template is updated in real time and saved in the database of the digital twin model. When a sudden failure occurs in the equipment and is repaired, the power plant production management information system calls the template in the digital twin model database and performs the operation according to the last step of the operator before the failure. The second model is used to predict the operator's operation path to determine whether there is a problem: ， in, represents the probability that there is a problem on the path, represents the time variable, Indicates the number of operation steps, Indicates the operation steps In time The characteristic function of Indicates the operation steps In time The risk assessment function is: Expressed as: ， in, represents the eigenvalue of the i-th operation step, Indicates time The characteristic mean function of Indicates time The characteristic variance function of represents the time window, represents the historical influence function of time τ; Expressed as: ， in, Indicates the number of current equipment risk factors, represents the weight of the j-th risk factor, represents the risk score of operation step i at time t and risk factor j; when =0, it means there is no problem with the operation path. =1, it indicates that there is a high probability of missing items or skipping items in the operation path, and the system generates an alarm instruction to prompt the operator to check whether there are any missing items or skipping items in the operation process; The results of the predictive maintenance model group and the progress display of the generated operation are fed back to the power plant production management information system. The duty manager monitors the operation based on the feedback results. or =1, the duty manager remotely issues an operation interruption command or an alarm command at any step. After the operation interruption command is issued, the on-site operation ticket terminal equipment will be locked. The operation alarm command notifies the operator that there will be missing items and skipped items in the current operation path, and the operator is required to check the operation steps.

7. A paperless operation ticket execution method based on power plant production management as claimed in claim 6, characterized in that: The updating of the operation ticket status includes that when all operations are completed, the operation ticket terminal system automatically returns the order, and the duty manager receives the return order prompt of "completed" on the power plant production management information system. After receiving the return order prompt of the completed operation, the duty manager updates the operation ticket status to "completed", and saves all the operation processes and data of the operation ticket to the operation folder under the corresponding compilation time, and directly calls it when a problem occurs; When the operation interruption command is issued, the operation ticket terminal system automatically returns the command "interrupted". At the same time, the duty manager receives the reply prompt of the interruption operation completion on the power plant production management information system, cancels the previous operation, locks the on-site operation ticket terminal equipment until the duty manager issues the contact interruption command, and returns to the first step to re-make or operate; When an interruption is caused by equipment and system problems, the operation ticket terminal system automatically returns an "abnormal" command and sends an alarm to the duty manager. The steps before the command is saved in the digital twin model. When the fault is repaired, the power plant production management information system calls the digital twin model database and performs the operation according to the last step of the operator before the fault. When in the "making", "returning", or "operating" states, the processing time exceeds When the operator needs to re-operate, he / she needs to apply to the duty manager again and verify the identity information data to prevent different operators from operating the same operation ticket. When the duty manager replies "agree", the system directly calls the operation ticket corresponding to the compilation time in the unfinished operation folder to continue the operation. When the duty manager replies "disagree", the operator needs to re-make the operation ticket for the review process.

8. A system using a paperless operation ticket execution method based on power plant production management as described in any one of claims 1 to 7, characterized in that: It includes operation ticket preparation module, operation ticket review module and operation ticket maintenance and update module; The operation ticket preparation module, in which the operator logs into the system, selects the operation ticket type, enters the operation ticket content, and submits the operation ticket to the operation ticket review module, while recording the preparation time and completion time of the operation ticket, and calculating the estimated total completion time; The operation ticket review module includes a security review unit and a duty manager review unit. After the security review is passed, the operation ticket is sent to the duty manager for review. The duty manager receives the operation ticket submitted by the operator and reviews the content of the operation ticket. After the review is passed, the operator starts to execute the operation ticket. During the execution process, the duty manager remotely monitors the operation progress and authorizes the issuance of operation interruption instructions and alarm instructions; The operation ticket maintenance and update module is responsible for maintaining and updating the status of the operation ticket. When the operator completes all operation steps, this module automatically returns the command and updates the operation ticket status to "completed". If equipment and system problems occur during the operation, the executed steps are saved, and the operation is resumed after the fault is repaired, and predictive maintenance is performed on the entire system.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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