Subway electromechanical system convenient to maintain

Abstract

The invention discloses a subway electromechanical system convenient to maintain. The subway electromechanical system comprises an equipment monitoring module, a data processing module, an equipment analysis module and an operation and maintenance management module, the equipment monitoring module is used for collecting working indexes of electromechanical equipment; the data processing module is used for classifying the collected working indexes, comparing and analyzing the collected working indexes with historical working index data stored in a database, and constructing a fault diagnosis early warning model; the equipment analysis module is used for judging whether the electromechanical equipment breaks down or not according to the collected working indexes and a fault diagnosis early warning model; and the operation and maintenance management module is used for recording the whole life cycle of the electromechanical equipment and deploying maintenance resources. According to the method, data of the electromechanical equipment in the operation process are pre-judged and analyzed, hidden danger early warning analysis of the electromechanical equipment is achieved, hidden dangers of the electromechanical equipment are found in advance, the failure rate of the electromechanical equipment is reduced, and the reliability of the electromechanical equipment is improved; by evaluating the health state of the electromechanical equipment, the current working state, performance and reliability level of the electromechanical equipment are obtained, so that maintenance is performed in a targeted manner, the use cost in the whole life cycle is reduced, the economic benefit of the electromechanical equipment is improved, and efficient and convenient maintenance of the subway electromechanical equipment is realized.

Description

Technical Field

[0001] The invention relates to the technical field of equipment maintenance, and in particular to a subway electromechanical system which is easy to maintain. Background Art

[0002] Urban rail transit is an important part of the modernization of urban transportation. With the rapid development of my country's urban rail transit industry, the electromechanical system equipment in the subway has shown the characteristics of large number, variety and large size. Therefore, the number of failures of subway equipment has also continued to increase. The occurrence of these failures will inevitably affect the safety of daily subway operations. However, traditional maintenance and repair strategies, daily inspection and production organization, and fault diagnosis levels are difficult to adapt to the ever-increasing operational safety service needs, resulting in low punctuality and poor passenger experience. Therefore, it is imperative to rationally use the intelligent management and control system to ensure the stable operation of electromechanical equipment and smooth transportation operations.

[0003] A Chinese patent (publication number: CN109787794A) discloses a subway electromechanical system data integration management system, which can store the working data information of the electromechanical equipment of the subway electromechanical system in real time, and divide the working data information into a fault data area, a dangerous data area, a design data area and an interface data area. The processor module processes the received data, sends the sorted data information to the client in the format of a report, and compares the received data to determine the electromechanical equipment corresponding to the fault data area or the dangerous data area, and then sends an alarm signal. However, it cannot predict the equipment in the early stage of equipment failure, so it cannot effectively maintain the equipment, resulting in high equipment use costs. Summary of the invention

[0004] In view of the technical problem in the prior art that equipment failure is not discovered in time, the present invention provides a subway electromechanical system that is easy to maintain.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A subway electromechanical system that is easy to maintain, comprising an equipment monitoring module, a data processing module, an equipment analysis module and an operation and maintenance management module;

[0007] The equipment monitoring module is used to collect working indicators of electromechanical equipment;

[0008] The data processing module is used to classify the collected work indicators, and then compare and analyze them with the historical work indicator data stored in the database to build a fault diagnosis and early warning model;

[0009] The equipment analysis module is used to determine whether the electromechanical equipment has a fault based on the collected working indicators and the fault diagnosis and early warning model;

[0010] The operation and maintenance management module is used to record the entire life cycle of electromechanical equipment and allocate maintenance resources.

[0011] Preferably, the working indicators include working status, monitoring level, failure rate, power consumption and load status.

[0012] Preferably, the equipment monitoring module includes a digital terminal unit, a video monitoring unit, and an environment monitoring unit; wherein,

[0013] The video monitoring unit includes a camera and a microphone; the environment monitoring unit includes a temperature sensor, a sound sensor, and a current sensor; and the digital terminal unit is used to process the data collected by the video monitoring unit and the environment monitoring unit.

[0014] Preferably, the equipment analysis module includes a fault diagnosis unit, a hidden danger warning unit, a health assessment unit, a maintenance decision unit and a data visualization unit.

[0015] Preferably, the fault diagnosis unit is used to analyze and diagnose the working indicators collected by the equipment monitoring module, and compare them with the historical fault data of similar electromechanical equipment stored in the database to determine whether abnormal data occurs; if abnormal data occurs, the cause of the abnormal data is analyzed, and the position of the faulty electromechanical equipment is located, and the number and location of the electromechanical equipment are sent to relevant staff via the APP of the mobile terminal device.

[0016] Preferably, the hidden danger warning unit is used to mine and analyze the historical data change trends of the electromechanical equipment before a fault occurs, and form a pre-fault data characteristic change curve, and predict the fault level of the data characteristic change trend of the current similar electromechanical equipment through the pre-fault data characteristic change curve.

[0017] Preferably, the health assessment unit is used to classify the health levels of the electromechanical equipment according to the working indicators; the health levels include level I, level II, level III, level IV and level V.

[0018] Preferably, the maintenance decision unit is used to make maintenance decisions on the electromechanical equipment evaluated by the health assessment unit; the maintenance decisions include continuing work, repair and maintenance, and replacing parts.

[0019] Preferably, the fault levels include the first level, the second level, and the third level; the first level fault information is reported to the first level, and the fault is handled according to the set first maintenance process; the second level fault information is reported to the second level, and the fault is handled according to the set second maintenance process; the third level fault information is reported to the third level, and the fault is handled according to the set third maintenance process.

[0020] Preferably, the operation and maintenance management module includes an inspection management unit, a maintenance management unit, an equipment life cycle management unit and an emergency dispatch management unit; wherein,

[0021] Inspection management unit, used to inspect electromechanical equipment after fault repair, planned maintenance and problem tracking operations;

[0022] Maintenance management unit, used to generate maintenance plans based on the operating status of electromechanical equipment;

[0023] Equipment life cycle management unit, used to record the life cycle data of electromechanical equipment in real time;

[0024] Emergency dispatch management unit is used to rationally allocate maintenance resources.

[0025] In summary, due to the adoption of the above technical solution, compared with the prior art, the present invention has at least the following beneficial effects:

[0026] The present invention predicts and analyzes the data of electromechanical equipment during operation to realize early warning analysis of hidden dangers of electromechanical equipment, discover hidden dangers of electromechanical equipment in advance, reduce the failure rate of electromechanical equipment, and improve the reliability of electromechanical equipment; by evaluating the health status of electromechanical equipment, the current working status, performance and reliability level of the electromechanical equipment are obtained, so as to carry out targeted maintenance, reduce the use cost throughout the life cycle, improve the economic benefits of electromechanical equipment, and thus realize efficient and convenient maintenance of subway electromechanical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a schematic diagram of a subway electromechanical system that is easy to maintain according to an exemplary embodiment of the present invention.

[0028] Figure 2 Schematic diagram of a device monitoring module according to an exemplary embodiment of the present invention.

[0029] Figure 3 FIG. 4 is a schematic diagram of a device analysis module according to an exemplary embodiment of the present invention.

[0030] Figure 4 Schematic diagram of an operation and maintenance management module according to an exemplary embodiment of the present invention.

[0031] Figure 5 Schematic diagram of a characteristic change curve of data before a fault according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following examples, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0033] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] like Figure 1 As shown, the present invention provides a subway electromechanical system that is easy to maintain, including an equipment monitoring module, a data processing module, an equipment analysis module and an operation and maintenance management module.

[0035] In this embodiment, the equipment monitoring module is used to monitor the working indicators of electromechanical equipment such as power distribution equipment, HVAC equipment, lighting equipment, environmental control equipment, water supply and drainage equipment, escalator equipment, platform door equipment, fire alarm equipment, and automatic ticket vending and checking equipment in real time, and determine whether the electromechanical equipment has any abnormality during operation. Among them, the working indicators include working status, monitoring level, failure rate, power consumption, load status, etc.

[0036] Among them, Figure 2 As shown, the equipment monitoring module includes a digital terminal unit, a video monitoring unit, and an environmental monitoring unit. The video monitoring unit includes a camera, a microphone, etc.; the environmental monitoring unit includes a temperature sensor, a sound sensor, a current sensor, etc. The digital terminal unit is used to input, process, and output the data used by the video monitoring unit and the environmental monitoring unit.

[0037] For example, the temperature generated by the self-heating of electromechanical equipment during operation is monitored through temperature sensors; the environmental noise value generated by the electromechanical equipment is monitored through sound sensors; the current value of the electromechanical equipment during operation is monitored through current sensors; and the appearance of the electromechanical equipment is monitored through cameras.

[0038] In this embodiment, the data processing module is used to classify the collected work indicators, and then compare and analyze them with the historical work indicator data stored in the database, explore the relationship between the data, build a fault diagnosis and early warning model, and provide processing suggestions in combination with the expert database.

[0039] Among them, the construction method of the fault diagnosis and early warning model is as follows:

[0040] S1. Data collection and classification: Collect the raw data of various working indicators, and then filter and classify the raw data based on the existing digital filtering algorithm to extract useful feature information; for example, in the classification process, classify according to working status, monitoring level, failure rate, power consumption and load status;

[0041] S2. Feature extraction and model training: Extract features from the filtered and classified data to obtain the baseline feature vector, positive sample feature vector, and negative sample feature vector; then iteratively optimize and train the preset model using the obtained feature vectors until the preset model meets the set requirements;

[0042] S3, Model evaluation and optimization: By analyzing the filtering and classification processing, iteratively adjust the algorithm parameters to ensure the accuracy and stability of the model;

[0043] S4. Model fault diagnosis and early warning: After the model training is completed, the monitored data is compared and analyzed with the historical work indicator data stored in the database to explore the relationship between the data, and combined with the expert database to give processing suggestions, generate diagnostic residuals, and then determine whether the system has a fault.

[0044] In this embodiment, the equipment analysis module is used to determine whether a fault occurs in the electromechanical equipment according to the collected working indicators.

[0045] like Figure 3 As shown, the equipment analysis module includes a fault diagnosis unit, a hidden danger warning unit, a health assessment unit, a maintenance decision unit and a data visualization unit.

[0046] In this embodiment, the fault diagnosis unit is used to analyze and diagnose the working indicators collected by the equipment monitoring module, and compare them with the historical fault data of similar electromechanical equipment stored in the database to determine whether abnormal data appears. If abnormal data appears, the cause of the abnormal data is analyzed, and the location of the faulty electromechanical equipment is located, and the number and location of the electromechanical equipment are sent to relevant staff through the APP of the mobile terminal device;

[0047] In this embodiment, the hidden danger warning unit is used to mine and analyze the historical data change trend of the electromechanical equipment before the failure occurs, and form a data characteristic change curve before the failure, such as Figure 5 Then, the data characteristic change curve before the fault is used to predict the data characteristic change trend of the current electromechanical equipment of the same type, so as to predict the time of fault occurrence and analyze the trend of equipment performance degradation, and remind the inspection personnel to focus on monitoring the electromechanical equipment with warning.

[0048] from Figure 5It can be seen from the figure that: in the changes before the failure occurs, the temperature increases slowly and steadily with the increase of the operating time of the electromechanical equipment; when the temperature reaches a certain level, it hardly increases anymore, but before the failure occurs, the temperature begins to rise sharply, and then the failure occurs.

[0049] If the failure trend continues to intensify, the fault information will be selectively reported to the corresponding level according to the impact level of the electromechanical equipment failure, such as to the supervisor, on-duty leader or maintenance team, and then the corresponding maintenance personnel will be arranged to handle the failure according to the set maintenance process, so as to prevent major failures that affect operations, realize hidden danger early warning analysis of electromechanical equipment, discover hidden dangers of electromechanical equipment in advance, reduce the failure rate of electromechanical equipment, and improve the reliability of electromechanical equipment.

[0050] For example, if the impact levels after the fault include the first level (emergency), the second level (normal), and the third level (minor), the first level fault information will be reported to the first level (supervisor). When the first level receives the first level fault information, it will handle the fault according to the set first maintenance process; the second level fault information will be reported to the second level (on-duty leader). When the second level receives the second level fault information, it will handle the fault according to the set second maintenance process; the third level fault information will be reported to the third level (maintenance team). When the third level receives the third level fault information, it will handle the fault according to the set third maintenance process.

[0051] After completing the maintenance task, the maintenance personnel can provide feedback on the maintenance results in the form of text descriptions, videos, and pictures, thereby realizing public supervision of the maintenance results. Inspection personnel can view the maintenance results of the faults through on-site inspections or remote video inspections, and evaluate the maintenance process and results.

[0052] In this embodiment, the health assessment unit is used to classify the health level of the electromechanical equipment according to the current working state, performance and reliability level of the electromechanical equipment, so as to realize the health status assessment of the electromechanical equipment, so as to timely identify potential faults and problems, and take corresponding maintenance measures to improve the reliability and efficiency of the equipment. For example, the health level of the electromechanical equipment is divided into levels I to V according to the healthy, relatively healthy, sub-healthy, faulty and serious fault states, among which level I is a healthy state, the electromechanical equipment operates normally, no faults or abnormal conditions occur, and the performance is excellent; level II is a relatively healthy state Level Ⅲ is a sub-healthy state, in which the electromechanical equipment operates well, with only minor faults or abnormalities, and its performance is normal; Level Ⅲ is a sub-healthy state, in which the electromechanical equipment has some faults or abnormalities, but can still operate normally, with a slightly reduced performance; Level Ⅳ is a fault state, in which the electromechanical equipment has multiple faults or abnormalities, requiring frequent repairs or replacement of parts, and with a significant reduction in performance; Level Ⅴ is a serious fault state, in which the electromechanical equipment often has faults or abnormalities, cannot operate normally, or requires a lot of time and money to repair or replace, and its performance is seriously reduced; as the health level increases, the health of the equipment deteriorates successively.

[0053] In this embodiment, the maintenance decision unit is used to make maintenance decisions on the electromechanical equipment evaluated by the health assessment unit. If the health status of the electromechanical equipment is level II after the evaluation, no processing is done and the electromechanical equipment continues to work; if the health status of the electromechanical equipment is level III after the evaluation, maintenance is carried out; if the health status of the electromechanical equipment is level V after the evaluation, a new electromechanical equipment needs to be replaced.

[0054] In this embodiment, the data visualization unit is used to convert the fault data into intuitive graphics, curves and tables for visual display, establish a fault database, and support fault data playback.

[0055] like Figure 4 As shown, the operation and maintenance management module is used to record the entire life cycle of electromechanical equipment and allocate maintenance resources. The operation and maintenance management module includes an inspection management unit, a maintenance management unit, an equipment life cycle management unit, and an emergency dispatch management unit.

[0056] In this embodiment, the inspection management unit is used to inspect the electromechanical equipment after fault repair, planned maintenance and problem tracking operations to ensure the normal operation of the electromechanical equipment.

[0057] In this embodiment, the maintenance management unit is used to generate an irregular maintenance plan based on the operating status of the electromechanical equipment; if the equipment is monitored to be operating completely normally, the maintenance cycle is extended; if the equipment failure rate is high, the maintenance cycle is shortened, thereby maintaining each device in a targeted manner.

[0058] In this embodiment, the equipment life cycle management unit is used to record in real time the entire life cycle of the electromechanical equipment's activation, maintenance, failure, overhaul and replacement, and to record the effective working time, annual operating costs, annual maintenance costs, annual downtime loss costs and comprehensive utilization rate of the electromechanical equipment during its entire life cycle.

[0059] In this embodiment, the emergency dispatch management unit is used to reasonably allocate maintenance resources so that when an emergency occurs, it can quickly respond and adjust to ensure that the subway can quickly resume normal operation. It includes maintenance personnel organization and training, maintenance work planning and scheduling, maintenance resource demand analysis, and resource scheduling principle setting.

[0060] Maintenance personnel organization and training: Rationally allocate the number and skills of maintenance personnel according to maintenance tasks and equipment quantity; regularly provide skills training and safety education to maintenance personnel to improve their professional level; conduct skill assessments on maintenance personnel to ensure that they have the ability to complete maintenance tasks;

[0061] Planning and scheduling of maintenance work: formulate reasonable maintenance plans based on equipment failure predictions and historical maintenance records; reasonably schedule maintenance resources based on the urgency of maintenance tasks and staffing conditions; dynamically adjust maintenance plans and scheduling based on equipment operating conditions and actual maintenance progress;

[0062] Maintenance resource demand analysis: Analyze the types and quantities of maintenance resources required based on the type and quantity of equipment; assess the complexity and time required for equipment maintenance work to determine the amount of resources required; understand the status of available resources, including human resources, tools, spare parts, etc., to ensure the availability of resources;

[0063] Resource scheduling principle setting: Determine the priority of maintenance tasks according to the importance and urgency of the equipment; adjust the resource scheduling plan in real time according to the maintenance progress and resource status; ensure that the required resources match the actual available resources to avoid waste or shortage of resources.

[0064] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A subway electromechanical system that is easy to maintain, characterized in that: It includes equipment monitoring module, data processing module, equipment analysis module and operation and maintenance management module; The equipment monitoring module is used to collect working indicators of electromechanical equipment; The data processing module is used to classify the collected work indicators, and then compare and analyze them with the historical work indicator data stored in the database to build a fault diagnosis and early warning model; The equipment analysis module is used to determine whether the electromechanical equipment has a fault based on the collected working indicators and the fault diagnosis and early warning model; The operation and maintenance management module is used to record the entire life cycle of electromechanical equipment and allocate maintenance resources.

2. A subway electromechanical system that is easy to maintain as claimed in claim 1, characterized in that: The working indicators include working status, monitoring level, failure rate, power consumption and load status.

3. The easy-to-maintain subway electromechanical system according to claim 1, characterized in that: The equipment monitoring module includes a digital terminal unit, a video monitoring unit, and an environment monitoring unit; wherein, The video monitoring unit includes a camera and a microphone; the environment monitoring unit includes a temperature sensor, a sound sensor, and a current sensor; and the digital terminal unit is used to process the data collected by the video monitoring unit and the environment monitoring unit.

4. The easy-to-maintain subway electromechanical system according to claim 1, characterized in that: The equipment analysis module includes a fault diagnosis unit, a hidden danger warning unit, a health assessment unit, a maintenance decision unit and a data visualization unit.

5. A subway electromechanical system that is easy to maintain as claimed in claim 4, characterized in that: The fault diagnosis unit is used to analyze and diagnose the working indicators collected by the equipment monitoring module, and compare them with the historical fault data of similar electromechanical equipment stored in the database to determine whether abnormal data appears; If abnormal data occurs, the cause of the abnormal data is analyzed, and the location of the faulty electromechanical equipment is located, and the number and location of the electromechanical equipment are sent to relevant staff through the APP of the mobile terminal device.

6. The easy-to-maintain subway electromechanical system according to claim 4, characterized in that: The hidden danger warning unit is used to mine and analyze the historical data change trend of the electromechanical equipment before a fault occurs, and form a pre-fault data characteristic change curve, and predict the fault level of the data feature change trend of the current similar electromechanical equipment through the pre-fault data characteristic change curve.

7. The easy-to-maintain subway electromechanical system according to claim 4, characterized in that: The health assessment unit is used to classify the health levels of the electromechanical equipment according to the working indicators; the health levels include level I, level II, level III, level IV and level V.

8. The easy-to-maintain subway electromechanical system according to claim 4, characterized in that: The maintenance decision unit is used to make maintenance decisions on the electromechanical equipment evaluated by the health assessment unit; the maintenance decisions include continuing to work, repair and maintenance, and replacing parts.

9. The subway electromechanical system that is easy to maintain as claimed in claim 6, characterized in that: The fault levels include first level, second level, and third level; the first level fault information is reported to the first level, and the fault is handled according to the set first maintenance process; the second level fault information is reported to the second level, and the fault is handled according to the set second maintenance process; the third level fault information is reported to the third level, and the fault is handled according to the set third maintenance process.

10. The subway electromechanical system easy to maintain as claimed in claim 1, characterized in that: The operation and maintenance management module includes an inspection management unit, a maintenance management unit, an equipment life cycle management unit and an emergency dispatch management unit; wherein, Inspection management unit, used to inspect electromechanical equipment after fault repair, planned maintenance and problem tracking operations; Maintenance management unit, used to generate maintenance plans based on the operating status of electromechanical equipment; Equipment life cycle management unit, used to record the life cycle data of electromechanical equipment in real time; Emergency dispatch management unit is used to rationally allocate maintenance resources.

Images