Locomotive servicing special dimension measuring and scheduling method, system and equipment and storage medium

Abstract

The invention discloses a locomotive servicing size measuring and scheduling method, system and device and a storage medium, relates to the technical field of locomotive maintenance management, and aims to solve the problem that manual measurement data and duration are not standard. After the locomotive enters the field, generating a measurement work order, associating the measurement work order with the measurement tool, the train number and the measurement guidance process, updating the measurement work order, and distributing the measurement work order according to the priority; a measurement work order is bound with the worker, a measurement tool is distributed after the identity of the worker is identified, the worker is guided to a measurement station, and the worker is guided to carry out a measurement task; receiving the uploaded field measurement data, predicting the current measurement data based on the historical measurement data and the standard reference data, comparing the field measurement data with the prediction data, and storing the field measurement data conforming to a deviation threshold value; and guiding a worker to carry out supplementary measurement on data exceeding the deviation threshold. According to the method and the system, the measurement data quality is ensured, and the measurement time is shortened.

Description

Technical Field

[0001] This invention relates to the field of locomotive maintenance management technology, and in particular to a method, system, equipment and storage medium for locomotive preparation-specific dimensional measurement and scheduling. Background Technology

[0002] To ensure the safe and reliable operation of railway locomotives, the dimensional measurement of components such as couplers, obstacle removers, sand spreaders, stone sweepers, and pantographs is a necessary inspection item. Traditional track inspections are highly dependent on the skill level of the inspectors, the characteristics of the inspected objects, and the matching measuring tools. The quality of the inspection, the time required, and the level of detail in data recording are unstable and can vary significantly. This makes it impossible to guarantee the acquisition of continuous, accurate, complete, and systematically categorized data, and it cannot meet the demands of modern information technology for rapid and reliable specialized dimensional measurements, effective data collection, and comprehensive analysis in the daily operation of locomotives.

[0003] Therefore, there is a need to provide a measurement method that can comprehensively manage and schedule measurement tasks, and comprehensively process the acquisition, transmission, and analysis of measurement data during the measurement process, so as to ensure stable and reliable measurement accuracy and standard measurement time. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention aims to provide a method, system, equipment, and storage medium for measuring and scheduling specific dimensions for locomotive preparation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A method for locomotive preparation and dimensional measurement and scheduling is provided, including the following steps: After the locomotive enters the maintenance yard, a measurement work order is generated. The measurement work order is associated with the measurement tools, train number, and measurement guidance process. The associated measurement work order is stored in the work order distribution pool. The measurement work orders in the work order distribution pool are updated in real time. The measurement work orders stored in the work order distribution pool are sorted according to priority. The measurement work orders are assigned to workers according to their order, and the work orders are linked to the workers to identify their identities. Measurement tools are assigned to workers based on the work orders, and workers are guided to their measurement workstations. Based on the measurement guidance process, workers are guided to carry out the measurement tasks corresponding to the work orders. The system receives real-time field measurement data uploaded by the measuring tool, predicts the current measurement data based on the historical measurement data of the device under test and the standard reference data of similar devices, compares the field measurement data with the predicted data, and stores the field measurement data that meets the deviation threshold. Instruct workers to perform supplementary measurements on measurement items in the measurement work order that exceed the deviation threshold.

[0006] Compared with the prior art, the present invention has the following technical effects: The measurement work order in this application is associated with measurement tools, train numbers, and measurement guidance procedures. The work order is stored in a work order distribution pool, which is updated in real time and sorted by priority. Work orders are then assigned to workers according to this priority, and each assigned work order is linked to a worker. After assigning measurement tools, workers are guided to their measurement workstations and guided to perform measurement tasks based on the measurement guidance procedures. Based on historical measurement data and standard reference data for similar equipment, the measurement data for the current equipment is predicted. The received on-site measurement data is compared with the predicted data. Data that meets the deviation threshold is considered qualified. Additional measurements are performed for any data exceeding the threshold, ultimately completing the measurement task of the work order. This achieves a rapid, cyclical measurement and control fusion mode consisting of measurement, data collection, data analysis, and feedback measurement, improving the data quality and efficiency of locomotive maintenance-specific measurements.

[0007] The present invention also provides a locomotive preparation special dimension measurement and scheduling system, including a work order generation unit, a work order issuance unit, and a data processing unit; The work order generation unit is used to generate a measurement work order after the locomotive enters the maintenance yard, associate the measurement work order with the measurement tool, train number, and measurement guidance process, store the associated measurement work order in the work order distribution pool, update the measurement work orders in the work order distribution pool in real time, and sort the measurement work orders stored in the work order distribution pool according to priority. The work order issuing unit is used to assign measurement work orders to workers according to the measurement work order order order, bind the measurement work order to the worker, identify the worker's identity, assign measurement tools to the worker according to the measurement work order, guide the worker to the measurement work station, and guide the worker to carry out the measurement task corresponding to the measurement work order based on the measurement guidance process. The data processing unit is used to receive on-site measurement data uploaded in real time by the measuring tool, predict the current measurement data based on the historical measurement data of the device under test and the standard reference data of similar devices, compare the on-site measurement data with the predicted data, store the on-site measurement data that meets the deviation threshold, and generate supplementary measurement instructions for measurement items that exceed the deviation threshold. The work order issuing unit is also used to guide workers to perform supplementary measurements on measurement items in the measurement work order that exceed the deviation threshold, based on supplementary measurement instructions.

[0008] The present invention also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of a locomotive preparation-specific dimension measurement and scheduling method.

[0009] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a method for measuring and scheduling specific dimensions for locomotive preparation. Attached Figure Description

[0010] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a flowchart illustrating the locomotive preparation-specific dimension measurement and scheduling method in an embodiment of the present invention; Figure 2 This is a schematic diagram of the operation logic of the locomotive preparation-specific dimension measurement and scheduling system in an embodiment of the present invention; Figure 3 This is a schematic diagram of the control logic of the locomotive preparation-specific dimension measurement and scheduling system in an embodiment of the present invention; Figure 4 This is a schematic diagram of the real-time control logic of the locomotive preparation-specific dimension measurement and scheduling system in an embodiment of the present invention; Figure 5 This is a schematic diagram of the logical structure of the locomotive preparation-specific dimension measurement and scheduling system in an embodiment of the present invention; Figure 6 This is a diagram of the operation interface of the locomotive preparation special dimension measurement and scheduling system in an embodiment of the present invention. Detailed Implementation

[0011] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0012] like Figure 1As shown in the embodiment of the present invention, the locomotive preparation special dimension measurement and scheduling method includes the following steps: after the locomotive enters the preparation yard, a measurement work order is generated; the measurement work order is associated with the measurement tool, train number, and measurement guidance process; the associated measurement work order is stored in the work order distribution pool; the measurement work orders in the work order distribution pool are updated in real time; the measurement work orders stored in the work order distribution pool are sorted according to priority; measurement work orders are assigned to workers according to the measurement work order sorting; the measurement work orders are bound to the workers; the worker's identity is identified; the measurement tools are assigned to the workers according to the measurement work order; the workers are guided to the measurement work station; the workers are guided to carry out the measurement tasks corresponding to the measurement work order based on the measurement guidance process; the on-site measurement data uploaded by the measurement tool in real time is received; the current measurement data is predicted based on the historical measurement data of the tested equipment and the standard reference data of similar equipment; the on-site measurement data is compared with the predicted data; the on-site measurement data that meets the deviation threshold is associated and stored; and the workers are guided to supplement the measurement data of the measurement work order that exceeds the deviation threshold.

[0013] Historical measurement data refers to data measured and stored by the device under test (DUT) prior to the current measurement. Standard reference data consists of standard data of the same type as the DUT, measured and stored chronologically. Based on the standard reference data and historical measurement data, the measurement data for the current DUT can be predicted. When comparing the predicted data with the on-site measurement data, the method used is (predicted value - measured value) / predicted value, then taking the absolute value. The comparison result is then compared with a deviation threshold, with the selected threshold range being 0.5% to 1%. Data within this threshold range is considered acceptable.

[0014] In practice: The locomotive preparation special dimension measurement and scheduling method and system developed in this invention adopts the following: measurement tool integration (measurement work order, toolbox, measurement task implementation), overall coordination and management of measurement tools + measurement personnel + measurement tasks (work order scheduling), real-time orderly collection and classification of measurement data (real-time data upload), real-time availability and comprehensive analysis; it integrates the systematic design concept and integration of direct measurement instruments and auxiliary software and hardware combination (on-site video, voice guidance tools), and integrates the measurement process with measurement data acquisition, transmission, analysis and processing and special process control (such as sound or text prompts or instructions), ensuring stable and reliable measurement accuracy and standard (far lower than the measurement time of traditional mode).

[0015] To ensure the integrity, orderliness, and real-time accuracy of the dimensional measurements of components such as couplers, obstacle removers, sand spreaders, stone sweepers, and pantographs covered in each locomotive inspection, a system was designed to use video, electromagnetic, QR code, and voice (fingerprint) recognition modes to autonomously associate tool cabinets, inspection workers, locomotive train numbers, inspection processes, and inspection work orders (or inspection items) in real time under the operation and control of the measurement system. Therefore: (1) it avoids mismatches between inspection items and locomotive train numbers due to human error; (2) it avoids mismatches between measurement data and inspection items due to process disorder; (3) the system autonomously controls the locomotive inspection process and data collection for one or more trains. 1. Confirmation and analysis to avoid omissions in the inspection and insufficient data integrity and accuracy; (4) The system coordinates the inspection workers and the corresponding measuring tools in the tool cabinet in real time, and integrates the on-screen graphics and the sound column on both sides of the work track to ensure that the inspection personnel work in an orderly, coordinated and efficient manner, and that the inspection tools are used in an orderly, sufficient and efficient manner, and that the inspection of each train of locomotives is completed within the standard time; (5) The measurement operation and data collection, analysis and processing are carried out at the same time, which not only presents the special measurement results of the locomotive for this train quickly, completely and accurately, but also presents the historical changes that continue to the present, meeting the locomotive preparation needs for continuous tracking.

[0016] To address the instability in testing quality caused by differences in the characteristics of the objects being tested, standard measurement parameters, including measurement angle and measurement duration, have been established. When using these standard measurement parameters to measure couplers, obstacle removers, sand spreaders, stone sweepers, and pantographs, appropriate standard measurement parameters should be selected based on the vehicle model, operating status, suspension, or installation mode.

[0017] For different measurement work orders, the following data measurement operations are implemented respectively.

[0018] (1) The pantograph measurement subsystem can perform action control, measurement, measurement control and data acquisition and analysis in a loop until the data is complete and accurate, based on the dynamic characteristics such as vehicle type, pantograph height, lifting time, static contact pressure and tension. (2) The coupler height measurement subsystem can accurately capture the coupler position and obtain a set of coupler height data related to driving safety by measuring and recognizing the upper, lower, left, right, front and rear edges; (3) Based on the installation location, angle, direction, distribution and pattern of the equipment (obstacle remover, sand spreader and stone sweeper) at the bottom of the locomotive, under the guidance of the measurement guidance process, quickly collect and analyze the measurement data, and complete the measurement until the completeness and precision (i.e., meets the requirements of completeness and accuracy) is achieved according to the analysis results.

[0019] When measuring the pantograph, a pantograph tester is used. The measurement method and detailed steps are as follows: Perform pantograph raising / lowering operations according to the vehicle model standard, and measure and record each parameter sequentially. Key measurement parameters include: pantograph raising height (mm), pantograph raising time (s), pantograph lowering time (s), and static contact pressure (N). The system calibrates, identifies, filters, and records the measured values ​​according to the vehicle model standard.

[0020] When measuring the coupler height, a digitally displayed coupler height gauge is used. The measurement method and detailed steps are as follows: 1. Adjust the position of the coupler height gauge according to the specifications, ensuring that the gauge is perpendicular to the coupler measurement surface; 2. After stabilization, the measurement value is generated; 3. Complete the measurement following the system prompts. Key measurement parameters include: height value (unit: mm). The system automatically identifies, filters, and records the uploaded values.

[0021] When measuring the height of the obstacle clearer, a height measuring instrument (Bluetooth caliper) is used. The measurement method and detailed steps are as follows: 1. Securely attach the fixed height magnetic gauge block to the rail surface (ensuring stability and no shaking); 2. Use the Bluetooth caliper to measure the vertical distance from the upper surface of the gauge block to the lower surface of the obstacle clearer; 3. Keep the caliper vertical and stable, avoiding tilting; 4. Complete the measurement following the system prompts. Key measurement parameters include: height value (unit: mm). The system automatically records the standard height value of the gauge block and calculates the final height of the obstacle clearer from the rail surface.

[0022] When measuring the height of a stone sweeper, a height measuring instrument (Bluetooth caliper) is used. The measurement method and detailed steps are as follows: Place the Bluetooth caliper vertically on the measuring point of the stone sweeper to measure the height, ensuring that the caliper is perpendicular to and in contact with the measuring surface. Key measurement parameters include: height value (unit: mm). The system automatically identifies, filters, and records the uploaded values.

[0023] When measuring the height of the sand-spreading pipe, a height measuring instrument (Bluetooth caliper) is used. The measurement method and detailed steps are as follows: Place the Bluetooth caliper vertically on the measurement point of the sand-spreading pipe to measure the height, ensuring that the caliper is perpendicular and in contact with the measurement surface. Key measurement parameters include: height value (unit: mm). The system automatically identifies, filters, and records the uploaded values.

[0024] This system collects and analyzes data in real time, and then controls and supplements the measurement data in real time until it is complete and accurate based on the analysis results. The complex layout of power facilities in locomotive maintenance yards, the numerous metal-cased devices, the somewhat random distribution of locomotives entering and parking the yard, and the diverse spatial distribution of the devices under test create interference, obstruction, and shielding. These environmental factors mean that using Bluetooth, Wi-Fi, and 5G communication alone cannot balance the requirements of real-time, fast, secure, reliable, and low-cost data communication. This invention, based on the locomotive maintenance yard environment, the location characteristics of the measured components, and the speed, quantity, and frequency of measurement data generation, selectively selects or switches to one or integrates multiple communication modes in the real-time measurement environment to ensure the stability and reliability of the system's measurement process.

[0025] The overall operation mode of the locomotive maintenance and measurement system is to receive locomotives continuously entering the maintenance yard, generate maintenance and measurement tasks, and continuously manage the measurement workers (teams) to carry out measurement operations. The operating logic of the operation mode is as follows: Figure 2 As shown, when a locomotive enters the maintenance yard, the system generates a measurement work order and adds it to the work order waiting pool (the waiting pool may contain measurement tasks that were previously added but not yet assigned or implemented). After a measurement worker (group) starts work, they log into the testing system. The measurement system assigns measurement tasks to one or more logged-in measurement workers (groups) according to specified rules. After a measurement worker (group) completes a measurement task, unless the measurement worker (group) logs out of the system for reasons such as needing to leave work, the measurement system continues to assign measurement tasks according to specified rules.

[0026] The control logic of the locomotive preparation special dimension measurement and scheduling system is as follows: Figure 3 As shown. After the locomotive to be inspected enters the maintenance yard, the application layer's workflow management module generates the inspection process and measurement work order. With the assistance of the auxiliary display layer, the personnel management module and tool management module complete the extraction of personnel tools and the automatic identification, binding, and matching of measurement work orders. Supported by the corresponding measurement subsystems, the measurement task is completed. If there are tasks to be completed, the process loops until all tasks are empty, then pauses. The operating logic of the locomotive maintenance-specific dimensional measurement and scheduling system is as follows: Figure 2 As shown.

[0027] The entire measurement system operates in two main parts: rule-based process control and measurement action execution. Rule-based process control ensures that each locomotive completes all its dimensional measurement tasks within a set timeframe. The locomotive maintenance-specific dimensional measurement system integrates functions from various technical layers to globally manage and complete these tasks. Locomotive maintenance-specific measurement operations are a crucial component of locomotive maintenance. These tasks are received from the locomotive maintenance process via the application layer's system management module. Basic task data includes the locomotive number, latest completion time, and parking location (including track number and specific parking point on the track; the locomotive's position may be adjusted after entering the maintenance yard, and the system management module updates the latest location in real time). The locomotive maintenance-specific measurement system breaks down the dimensional measurement tasks distributed to it by locomotive number into pantograph measurement, coupler height measurement, and undercarriage component measurement, covering parts such as obstacle removers, sand spreaders, and stone sweepers.

[0028] At the start of a locomotive maintenance-specific dimensional measurement shift, the locomotive maintenance-specific dimensional measurement system has pending tasks including locomotives where partial dimensional measurement work was completed in the previous shift (e.g., pantograph measurement work is completed, other dimensional measurement work is pending) and locomotives where all dimensional measurement work is pending. The application layer's personnel management module, measurement work order management module, and tool management module, based on the pending tasks and the required latest completion time, dispatch measurement work orders and allocate tools to the shift's on-duty personnel. After retrieving tools from the tool cabinet, the on-duty personnel can proceed to the work position to begin dimensional measurement work, guided by electronic signboards or track sound prompts.

[0029] The measurement actions are executed, and the work process of each measurement worker (group) is managed and controlled individually within their shift. Real-time control logic is as follows: Figure 4 As shown. When a shift worker completes an assigned dimensional measurement task or enters the system at the start of a shift, the system enters the task allocation (or reassignment) phase. During any measurement operation in this system, data collection and analysis are completed in real time. When the system detects that a shift worker's current measurement data is accurate and complete, it notifies the worker that the task is complete via measuring tools and / or track sound columns, workstation terminals, or electronic displays, and simultaneously triggers task reassignment. Multiple shift workers may complete their previous measurement tasks simultaneously; therefore, the reassignment phase may assign tasks to one or more workers. In addition, the tasks to be assigned may include tasks that were already in place at the start of this shift, as well as new measurement tasks received from the start of this shift to the current time. When tasks are redistributed, in addition to ensuring that all tasks are completed by the latest deadline, the following rules apply: (1) Priority is given to assigning similar tasks that are close to the current work location, so that workers do not need to return existing tools and pick up new tools, and the transfer distance is short, reducing the waste of time; (2) When there are no similar tasks or different types of tasks that must be completed in a time-sensitive manner, priority is given to tasks that consume less time to return tools and / or pick up new tools.

[0030] When the shift's deadline has arrived, and the shift's on-duty personnel have completed their measurement tasks, no further task reassignment will be triggered. Once the personnel have returned the tools, the work will automatically be completed and the shift will be exited.

[0031] The system autonomously guides workers assigned tasks (work orders) to complete their work. After entering the work area, the system uses sound columns along the tracks, workstation terminals, electronic signboards, and the workshop LED screen to guide workers to designated tool cabinets to retrieve tools. Once workers arrive at the designated tool cabinets, the image recognition equipment on the cabinets automatically identifies the worker waiting to retrieve tools. After successful identification, the display screen on the tool cabinet automatically shows the list of tools waiting for the worker in that cabinet. Simultaneously, the display screen shows the tool being dispensed one by one and prompts the worker to retrieve the corresponding tool.

[0032] After receiving all the necessary tools and equipment for their assigned tasks, the workers will proceed to their designated measurement work location guided by the track sound columns, workstation terminals, electronic signboards, and the workshop LED screen. The measurement work location is divided into a lead position and a measurement position. Based on the real-time updates of the locomotive's current location from the system management module, the system identifies, confirms, and matches the locomotive number by selecting either the locomotive head or the body of the vehicle along the indicated route. Once the locomotive number is successfully matched, the locomotive number, work order task number, and worker's basic information are matched, and the measurement work can then commence.

[0033] The pantograph measurement operation is controlled by the pantograph measurement subsystem. After the vehicle number, work order number, and operator's basic information are matched, the pantograph measurement subsystem selects and controls the pantograph's lifting speed, amplitude, and duration during the measurement process based on the specific vehicle model. It collects, transmits, and analyzes data in real time, and quickly feeds back the real-time data analysis results to the pantograph lifting speed, amplitude, and duration readjustment control until the collected and transmitted data meets the requirements of completeness, sufficiency, and accuracy. It controls the pantograph's contact opening and closing action, measures the pantograph's static contact pressure and tension, and continues to collect, transmit, and analyze data in real time until the real-time data analysis module determines that accurate and reliable data has been obtained.

[0034] The coupler height measurement operation is controlled and completed by the coupler height measurement subsystem. After the basic information of the car number, work order task number and operator is matched, the coupler height measurement subsystem continuously collects, transmits and analyzes images and corresponding measurement data, identifies, analyzes and matches the upper, lower, left, right, front and rear edges of the coupler and the corresponding measurement positions and data, and quickly terminates the measurement when the real-time data analysis module determines that complete and accurate data has been obtained.

[0035] The measurement of undercarriage equipment (including obstacle clearers, sand spreaders, and stone sweepers) is autonomously controlled by the undercarriage component measurement subsystem. Based on the vehicle model, current parking status, distribution of equipment under the vehicle, installation location, angle, direction, mode, and measurement constraints, the subsystem generates a measurement process and steps in real time. The measurement task is completed step-by-step, with the goal of ensuring data integrity and accuracy under the control of the real-time data analysis module. When the measurement data requires a combination of multiple measurements to determine completeness and accuracy, rapid, iterative completion and refinement are achieved under the control of the undercarriage component measurement and control module.

[0036] The measurement work order management module performs real-time integrity checks on the dimensional measurement work orders for each locomotive. When all dimensional measurement tasks required for a locomotive have been completed, the measurement work order management module reports the completion information of the locomotive preparation-specific dimensional measurement and detailed measurement data of each task to the preparation system in real time, and removes the locomotive from the list of locomotives to be inspected.

[0037] After a shift worker completes a measurement task, the system prioritizes reassigning them to a task of the same type as the previous one. The worker simply moves to another location to continue measuring, without needing to return the currently collected measuring tools or retrieve any new tools, thus improving efficiency. If, during task reassignment, the system can only assign a different type of task, the worker must first return any unused tools and then retrieve the necessary tools for the new task. If, during task reassignment, the system detects that temporarily delaying the return of tools will not affect other workers' measurement tasks, the system will prompt the worker via audio guides, workstation terminals, electronic displays, and the workshop LED screen to retrieve the necessary tools for the new task, thus delaying the return of unused tools. Tools already retrieved will be returned in a unified manner later, further improving efficiency.

[0038] When workers change their work assignments or finish their shifts, they need to return the tools they received to one or more tool cabinets. The tool management module uses a unified system via sound columns along the tracks, workstation terminals, electronic signboards, and a large LED screen in the workshop to distribute the workers who need to return tools to multiple tool cabinets, gradually completing the return of the required tools. Once a worker arrives at the designated tool cabinet, the image recognition device on the cabinet automatically identifies the worker whose tools are to be returned. After successful identification, the display screen on the tool cabinet automatically shows the list of tools to be returned by the worker in that cabinet, while guiding the worker to complete the return of each tool by following the required steps. The tool cabinet integrates video, electromagnetic, QR code, and voice (fingerprint) recognition modes to accurately collect the tools into the cabinet.

[0039] The measurement work order in this application is associated with measurement tools, train numbers, and measurement guidance procedures. The work order is stored in a work order distribution pool, which is updated in real time and sorted by priority. Work orders are then assigned to workers according to this priority, and each assigned work order is linked to a worker. After assigning measurement tools, workers are guided to their measurement workstations and guided to perform measurement tasks based on the measurement guidance procedures. Based on historical measurement data and standard reference data for similar equipment, the measurement data for the current equipment is predicted. The received on-site measurement data is compared with the predicted data. Data that meets the deviation threshold is considered qualified. Additional measurements are performed for any data exceeding the threshold, ultimately completing the measurement task of the work order. This achieves a rapid, cyclical measurement and control fusion mode consisting of measurement, data collection, data analysis, and feedback measurement, improving the data quality and efficiency of locomotive maintenance-specific measurements.

[0040] As one possible implementation method, guiding workers to perform supplementary measurements on measurement items in a measurement work order that exceed the deviation threshold includes the following steps: performing multiple supplementary measurements on the data exceeding the measurement item in the measurement work order; calculating the average value of the multiple supplementary measurement data, comparing the average value of the supplementary measurement data with the predicted value, and storing the average value of the supplementary measurement data that meets the deviation threshold; and marking and storing the average value of the supplementary measurement data for measurement items that exceed the deviation threshold.

[0041] Specifically, when supplementing measurements for data exceeding the deviation threshold, multiple supplementary measurements are performed, and the average value is calculated. To ensure data accuracy and avoid occasional errors, stable and continuous measurements are selected for these supplementary measurements. Three supplementary measurements are performed, or any other number chosen based on specific requirements. The average value of the supplementary measurement data that meets the deviation threshold for the corresponding measurement item is considered acceptable and will be associated with and stored in conjunction with other field measurement data that also meet the corresponding deviation threshold. The average value of the supplementary measurement data for the corresponding measurement item that still exceeds the deviation threshold after supplementary measurements is considered non-compliant. This is abnormal data that deviates from the historical measurement data of the tested equipment and the standard reference data of similar equipment. This abnormal data will also be associated with and stored with other field measurement data that meet the corresponding measurement item, but it will be marked with an anomaly warning.

[0042] By supplementing the measurement data that exceeds the deviation threshold, the influence of occasional errors on the measurement results is avoided, thus ensuring the accuracy of the measurement results.

[0043] As one possible implementation, assigning measurement work orders from the work order distribution pool to workers includes the following steps: Determine whether the worker who received the measurement work order is either a worker who has completed an existing measurement work order or a worker without a measurement work order; When a worker completes an existing measurement work order, the system checks whether the type of the newly assigned measurement work order is the same as the type of the completed measurement work order. If they are the same, the worker is guided to the measurement station of the new measurement work order and instructed to complete the measurement task. If they are different, the worker is guided to return the measurement tools, the newly assigned measurement work order is bound to the worker, a measurement tool matching the measurement work order is assigned to the worker, and the worker is instructed to complete the measurement task. When a worker does not have a measurement work order, a new measurement work order will be assigned to the worker, and a measurement tool matching the measurement work order will be assigned to the worker to guide the worker in completing the measurement task.

[0044] By analyzing the workers who receive measurement work orders, we can determine how to allocate work orders to them, making the allocation more accurate and avoiding situations where incorrect work order allocation affects the efficiency of worker and equipment data measurement.

[0045] As one possible implementation method, the priority is the latest completion time of the measurement work order. The measurement work orders in the work order distribution pool are sorted according to the latest completion time, and the measurement work orders are allocated according to the sorting order.

[0046] By prioritizing measurement work orders and allocating them according to the order of priority, the smooth completion of high-priority train measurement tasks is ensured without affecting the normal departure of trains. Furthermore, the measurement work orders in the work order distribution pool are updated in real time. When a new train enters the depot, its measurement work orders are sorted and allocated according to the maintenance priority of the new train.

[0047] As one possible implementation method, allocating measurement work orders according to priority includes the following steps: Workers who have completed existing measurement work orders will be assigned similar measurement work orders from nearby locations. Alternatively, workers can be assigned measurement work orders of a different type from those already completed, prioritizing those with shorter timeframes for returning tools and collecting new ones.

[0048] By assigning workers measurement work orders of the same or similar type as completed measurement work orders, and with short return and tool retrieval times, the loss of intermediate time was reduced, which improved worker efficiency to some extent.

[0049] As one possible implementation, after completing the measurement task of the current measurement work order, the following steps are also included: The system will notify the worker that the current measurement work order has been completed, assign the worker a new measurement work order, or guide the worker to return the tools.

[0050] By assigning new measurement work orders to workers, the continuity of measurement work was ensured.

[0051] As one possible implementation method, the measurement work order includes the pantograph measurement work order, the coupler height measurement work order, and the undercarriage equipment measurement work order; The pantograph measurement work order includes the measurement of pantograph lifting height, lifting time, static contact pressure, and tension. The coupler height measurement work order includes the measurement of the coupler position and the coupler height; The work order for measuring under-vehicle equipment includes measuring the installation position, direction, and angle of obstacle clearers, sand spreaders, and stone sweepers.

[0052] By specifying the measurement items in the measurement work order, comprehensive measurement of pantograph, coupler height, and undercarriage equipment work orders has been achieved.

[0053] Based on the embodiment of the locomotive preparation special dimension measurement and scheduling method, a locomotive preparation special dimension measurement and scheduling system is also provided, including a work order generation unit, a work order issuance unit, and a data processing unit; It includes a work order generation unit, a work order issuance unit, and a data processing unit; The work order generation unit is used to generate measurement work orders after the locomotive enters the maintenance yard, associate the measurement work orders with measurement tools, train numbers, and measurement guidance processes, store the associated measurement work orders in the work order distribution pool, update the measurement work orders in the work order distribution pool in real time, and sort the measurement work orders stored in the work order distribution pool according to priority. The work order distribution unit is used to assign measurement work orders to workers according to the order of measurement work orders, bind the measurement work orders to workers, identify the worker's identity, assign measurement tools to workers according to the measurement work orders, guide workers to the measurement workstation, and guide workers to carry out the measurement tasks corresponding to the measurement work orders based on the measurement guidance process. The data processing unit is used to receive the field measurement data uploaded in real time by the measuring tool, predict the current measurement data based on the historical measurement data of the device under test and the standard reference data of similar devices, compare the field measurement data with the predicted data, store the field measurement data that meets the deviation threshold, and generate supplementary measurement instructions for measurement items that exceed the deviation threshold. The work order issuance unit is also used to guide workers to perform supplementary measurements on measurement items in the measurement work order that exceed the deviation threshold, based on supplementary measurement instructions.

[0054] The logical structure diagram of the vehicle preparation-specific dimension measurement control and scheduling system is shown below. Figure 5As shown. The system is technically divided into an equipment layer, a data layer, a control layer, an application layer, and an auxiliary display layer. The equipment layer includes a pantograph measurement equipment group, a coupler height measurement equipment group, a car undercarriage component measurement equipment group, and a communication equipment group. The measurement equipment groups are divided into coupler height measurement equipment group, car undercarriage component measurement equipment group, and pantograph measurement equipment group. These measurement equipment groups are built according to the characteristics of the measured object and its position on the locomotive. Their core is the integration of data acquisition, transmission, and control command receiving modules, ensuring real-time and smooth data collection and control feedback interaction. The measurement equipment has embedded communication interfaces, data transmission functions, and control command receiving functions. The communication equipment group is distributed according to rules within the maintenance yard space and serves as the communication transmission medium during the measurement and control process.

[0055] The data layer is responsible for defining, configuring, collecting, organizing, sorting, and storing basic data. Before the measurement task is executed, it completes the initial configuration or configuration update of basic data. As the measurement task is completed, the data layer collects, sorts, and stores component measurement data, measurement work order data, tool data (including tool usage data), and various process log data.

[0056] The control layer is responsible for integrating the equipment layer and data layer to control various measurement processes, work processes, tool receiving and sending processes, and personnel work order task scheduling processes during operation, including initiation, process monitoring, anomaly response, and termination.

[0057] After system configuration is complete, the application layer is in normal working condition, comprehensively covering work order generation and rule-based assignment of measurement work orders, as well as the continuous execution of work orders by measurement workers (teams). It is responsible for real-time and time-sharing data analysis. Real-time data analysis works in conjunction with the measurement control process to complete effective measurements, while time-sharing data analysis utilizes the system's idle time to perform complete, systematic, and in-depth data analysis. This provides support for continuous optimization of measurement quality and offers systematic and high-quality data services to various system users. The application layer also provides interfaces for tool management, personnel management, workflow work order management, and system management.

[0058] The auxiliary display layer includes track sound columns, workstation terminals, electronic kanban boards, computer clients, workshop LED screens, and large-screen displays. Based on the needs of real-time measurement and control processes, measurement work order scheduling, and locomotive preparation and management, it assists in completing the measurement process and management needs through multimedia presentation modes such as workstation terminals, electronic kanban boards, track sound columns, and large screens that work together.

[0059] In actual operation, the various technical layers work collaboratively. Specifically, the pantograph measurement subsystem comprises the pantograph measurement equipment group at the equipment layer, the pantograph measurement data management submodule within the component measurement data management layer at the data layer, and the pantograph measurement and control module at the control layer. The coupler height measurement subsystem comprises the coupler height measurement subsystem, composed of the coupler height measurement data management submodule at the equipment layer, the coupler height measurement and control module within the data layer, and the undercarriage component measurement subsystem, composed of the undercarriage component measurement equipment group at the equipment layer, the undercarriage component measurement data management submodule within the data layer, and the undercarriage component measurement and control module at the control layer. During operation, the pantograph measurement subsystem, coupler height measurement subsystem, and undercarriage component measurement subsystem can utilize the real-time data analysis module at the application layer and relevant auxiliary tools at the auxiliary display layer as needed to assist in completing related measurement tasks.

[0060] The pantograph measurement subsystem, coupler height measurement subsystem, and undercarriage component measurement subsystem can be integrated and penetrate multiple technical layers. The application layer integrates the preparation operation process, the allocation of measurement workers, the management of tool receipt and dispatch, and the measurement operation to work efficiently in a collaborative feedback mode.

[0061] The communication equipment group at the equipment layer, the basic data management at the data layer, and the data communication control module at the control layer constitute the communication interaction guarantee subsystem. This subsystem dynamically selects appropriate communication combinations or modes to ensure that data interaction during the measurement process is not affected by external factors such as interference or shielding. The log data management layer stores work logs or records.

[0062] Based on the requirements for the precision and accuracy of measurement data in locomotive preparation special measurements, a rapid cycle measurement and control fusion mode consisting of measurement, data collection, data analysis, and feedback measurement is designed. The measurement data includes not only the target object size data, but also the attitude corresponding to the target object's movement during or after measurement, as well as intermediate measurement data (corresponding measurement parameters).

[0063] During locomotive maintenance, multiple locomotives are scheduled for testing at the same time in the maintenance yard. Each locomotive has multiple essential measurement items. To shorten the total measurement time for each locomotive and ensure the accurate and complete matching of the locomotives to be tested, the test items, and the measurement data, the system uses video, electromagnetic, QR code, and voice (fingerprint) recognition modes to autonomously link the measurement process scheduling, work order task assignment, measurement personnel management, and measurement tool allocation.

[0064] In this application, the work order generation unit calls the application layer's process work order management and the data layer's process work order data management. After the locomotive enters the maintenance yard, the process work order management generates the inspection process and measurement work order, and also calls the tool management module to manage the measurement work order and measurement tools. It also associates the measurement work order with the measurement guidance process in the operation control module. The process work order data management prioritizes the generated measurement work orders.

[0065] The work order issuance unit invokes the application layer's workflow work order management, application layer's personnel management, data layer's workflow work order data management, application layer's tool and equipment management, control layer's job management module, and auxiliary display layer; it assigns generated measurement work orders to workers, and the data layer's workflow work order data management schedules and updates the measurement work orders; the tool and equipment management and tool and equipment data management are located in the toolbox, which identifies worker identities, assigns workers the corresponding measurement tools for measurement work orders, identifies tools returned by workers, and guides workers to their measurement workstations through prompts in the auxiliary display layer; the job management module guides workers to carry out measurement work.

[0066] The data processing unit calls upon the pantograph measurement subsystem, coupler height measurement subsystem, and undercarriage component measurement subsystem, and also includes a real-time data analysis module at the application layer and a work management module at the control layer. The pantograph measurement subsystem detects dynamic characteristic data such as pantograph height, lifting time, static contact pressure, and tension based on the locomotive model. The coupler height measurement subsystem accurately captures the coupler position and detects coupler height data by measuring and identifying the top, bottom, left, right, front, and rear edges. The undercarriage component measurement subsystem quickly collects measurement data from the equipment (obstacle remover, sand spreader, and stone sweeper) at the locomotive's bottom based on their installation location, angle, direction, distribution, and pattern. The real-time data analysis module analyzes and processes the measurement data uploaded in real-time by the pantograph measurement subsystem, coupler height measurement subsystem, and undercarriage component measurement subsystem. The work management module guides workers to complete measurement operations according to the measurement guidance process and, when the data uploaded by the pantograph measurement subsystem, coupler height measurement subsystem, and undercarriage component measurement subsystem exceeds the deviation threshold, guides workers to supplement the measurements for the items exceeding the deviation threshold.

[0067] Figure 6 This is a screenshot of the user interface for the locomotive preparation-specific dimensional measurement and scheduling system. The interface displays task records, tool borrowing, inspection records, measurement items, and measurement data for different workers.

[0068] The present invention also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of a locomotive preparation-specific dimension measurement and scheduling method.

[0069] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a method for measuring and scheduling specific dimensions for locomotive preparation.

[0070] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0071] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for measuring and scheduling specific dimensions during locomotive maintenance, characterized in that, Includes the following steps: After the locomotive enters the maintenance yard, a measurement work order is generated. The measurement work order is associated with the measurement tools, train number, and measurement guidance process. The associated measurement work order is stored in the work order distribution pool. The measurement work orders in the work order distribution pool are updated in real time. The measurement work orders stored in the work order distribution pool are sorted according to priority. The measurement work orders are assigned to workers according to their order, and the work orders are linked to the workers to identify their identities. Measurement tools are assigned to workers based on the work orders, and workers are guided to their measurement workstations. Based on the measurement guidance process, workers are guided to carry out the measurement tasks corresponding to the work orders. The system receives real-time field measurement data uploaded by the measuring tool, predicts the current measurement data based on the historical measurement data of the device under test and the standard reference data of similar devices, compares the field measurement data with the predicted data, and stores the field measurement data that meets the deviation threshold. Instruct workers to perform supplementary measurements on measurement items in the measurement work order that exceed the deviation threshold.

2. The locomotive preparation-specific dimension measurement and scheduling method according to claim 1, characterized in that, The process of instructing workers to perform supplementary measurements on measurement items in the measurement work order that exceed the deviation threshold includes the following steps: Perform multiple supplementary measurements on data that exceed the measurement items in the measurement work order; Calculate the average of multiple supplementary measurement data, compare the average of the supplementary measurement data with the predicted value, and store the average of the supplementary measurement data that meets the deviation threshold. The average value of supplementary measurement data for measurement items that exceed the deviation threshold is labeled and stored accordingly.

3. The locomotive preparation-specific dimension measurement and scheduling method according to claim 1, characterized in that, The process of allocating measurement work orders from the work order distribution pool to workers includes the following steps: Determine whether the worker who received the measurement work order is either a worker who has completed an existing measurement work order or a worker without a measurement work order; When a worker completes an existing measurement work order, the system checks whether the type of the newly assigned measurement work order is the same as the type of the completed measurement work order. If they are the same, the worker is guided to the measurement station of the new measurement work order and instructed to complete the measurement task. If they are different, the worker is guided to return the measurement tools, the newly assigned measurement work order is bound to the worker, a measurement tool matching the measurement work order is assigned to the worker, and the worker is instructed to complete the measurement task. When a worker does not have a measurement work order, a new measurement work order will be assigned to the worker, and a measurement tool matching the measurement work order will be assigned to the worker to guide the worker in completing the measurement task.

4. The locomotive preparation-specific dimension measurement and scheduling method according to claim 1, characterized in that, The priority is the latest completion time of the measurement work order. The measurement work orders in the work order distribution pool are sorted according to the latest completion time, and the measurement work orders are allocated according to the sorting order.

5. The locomotive preparation-specific dimension measurement and scheduling method according to claim 4, characterized in that, When assigning measurement work orders according to the aforementioned priority, the following steps are included: Workers who have completed existing measurement work orders will be assigned similar measurement work orders from nearby locations. Alternatively, workers can be assigned measurement work orders of a different type from those already completed, prioritizing those with shorter timeframes for returning tools and collecting new ones.

6. The locomotive preparation-specific dimension measurement and scheduling method according to claim 1, characterized in that, After completing the measurement task of the current measurement work order, the following steps are also included: The system will notify the worker that the current measurement work order has been completed, assign the worker a new measurement work order, or guide the worker to return the tools.

7. The locomotive preparation-specific dimension measurement and scheduling method according to claim 1, characterized in that, The measurement work orders include pantograph measurement work orders, coupler height measurement work orders, and undercarriage equipment measurement work orders; The pantograph measurement work order includes the measurement of pantograph lifting height, lifting time, static contact pressure, and tension. The coupler height measurement work order includes the measurement of coupler position and coupler height; The undercarriage equipment measurement work order includes the measurement of the installation position, direction, and angle of the obstacle clearer, sand spreading pipe, and stone sweeper.

8. A system comprising the locomotive preparation-specific dimensional measurement and scheduling method according to any one of claims 1 to 7, characterized in that, It includes a work order generation unit, a work order issuance unit, and a data processing unit; The work order generation unit is used to generate a measurement work order after the locomotive enters the maintenance yard, associate the measurement work order with the measurement tool, train number, and measurement guidance process, store the associated measurement work order in the work order distribution pool, update the measurement work orders in the work order distribution pool in real time, and sort the measurement work orders stored in the work order distribution pool according to priority. The work order issuing unit is used to assign measurement work orders to workers according to the measurement work order order order, bind the measurement work order to the worker, identify the worker's identity, assign measurement tools to the worker according to the measurement work order, guide the worker to the measurement work station, and guide the worker to carry out the measurement task corresponding to the measurement work order based on the measurement guidance process. The data processing unit is used to receive on-site measurement data uploaded in real time by the measuring tool, predict the current measurement data based on the historical measurement data of the device under test and the standard reference data of similar devices, compare the on-site measurement data with the predicted data, store the on-site measurement data that meets the deviation threshold, and generate supplementary measurement instructions for measurement items that exceed the deviation threshold. The work order issuing unit is also used to guide workers to perform supplementary measurements on measurement items in the measurement work order that exceed the deviation threshold, based on supplementary measurement instructions.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, it implements the steps of the locomotive preparation-specific dimension measurement and scheduling method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it implements the locomotive preparation-specific dimension measurement and scheduling method according to any one of claims 1 to 7.

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