Preventive maintenance intelligent system for motor

Abstract

The invention relates to an intelligent preventive maintenance system for a motor. The intelligent preventive maintenance system comprises an equipment management server and an equipment terminal connected with the equipment management server. Wherein the equipment management server stores equipment information and maintenance information of the equipment terminal, is also used for regularly generating a first control instruction, sending the first control instruction to the equipment terminal and receiving state monitoring data fed back by the equipment terminal, and is also used for processing a maintenance record and the state monitoring data to obtain and update operation state parameters; and the server is used for identifying whether the operation state parameters meet maintenance conditions, generating maintenance reminding information if the operation state parameters meet the maintenance conditions, acquiring maintenance updating information and updating maintenance records based on the maintenance updating information. According to the intelligent system, the equipment can be maintained according to the preset maintenance plan through the abrasion condition or the operation state of the motor, unnecessary maintenance on standby equipment can be reduced, equipment with problems can be maintained in time, the maintenance cost is saved, and the service life of the motor is effectively prolonged.

Description

Technical Field

[0001] The invention relates to the field of motor preventive maintenance, and in particular to an intelligent system for motor preventive maintenance. Background Art

[0002] In current motor maintenance work, manual regular maintenance is commonly used. This method is often based on fixed time intervals rather than arranging maintenance work according to the actual operating time and usage status of the motor. This means that regardless of the degree of wear or operating condition of the motor, maintenance will be carried out according to the predetermined plan, which may lead to unnecessary maintenance before the motor reaches the optimal maintenance time, or failure to perform maintenance in time when the motor has potential problems. This practice not only increases the labor cost of maintenance, but may also affect the performance and service life of the motor due to insufficient or excessive maintenance.

[0003] Therefore, there is a need for an intelligent motor preventive maintenance system that can perform maintenance work based on operating time and operating status. Summary of the invention

[0004] Based on this, the object of the present invention is to provide an intelligent system for preventive maintenance of electric motors capable of performing maintenance work according to operating time and operating status, comprising:

[0005] A device management server and a device terminal connected to the device management server;

[0006] The device management server is used to:

[0007] The device information and maintenance records of the storage device terminal include the operating status parameters of the device;

[0008] Regularly generate a first control instruction and send it to the device terminal and receive status monitoring data fed back by the device terminal, the first control instruction is used to instruct the device terminal to feed back status monitoring data of the running status record;

[0009] Processing based on maintenance records and status monitoring data to obtain and update operating status parameters;

[0010] Identify whether the operating status parameters meet the maintenance conditions. If they do, generate corresponding maintenance reminder information based on the device information. The maintenance conditions are used to indicate the requirements for equipment maintenance of the corresponding device terminal.

[0011] Obtain maintenance update information and update maintenance records based on the maintenance update information;

[0012] The device terminal is used to receive and execute the first control instruction, and is also used to send status monitoring data to the device management server.

[0013] Further, after identifying whether the operating status parameters meet the maintenance conditions and generating corresponding maintenance reminder information based on the equipment information if the conditions are met, the method further includes:

[0014] Generate a corresponding second control instruction based on the device information and send the second control instruction to the device terminal, where the second control instruction is used to indicate that the device terminal is controlled to stop running;

[0015] The device terminal is also used to receive and execute a second control instruction from the device management server.

[0016] Further, the maintenance conditions include regular maintenance conditions, and the operating status parameters include operating time parameters of the equipment;

[0017] Maintenance conditions include regular maintenance conditions, and operating status parameters include equipment operating time parameters;

[0018] Regular maintenance conditions include: the maintenance record time of the equipment terminal exceeds the preset maintenance cycle;

[0019] The maintenance operation time is obtained by the following method:

[0020] Based on the operation time parameters and equipment information, the maintenance operation time variation is obtained;

[0021] Adding the maintenance operation time variation to the maintenance operation time to obtain and store the updated maintenance operation time;

[0022] Identify whether the maintenance operation time exceeds the preset timing parameter of the first control instruction, if it exceeds, add the timing parameter to the maintenance record time, and obtain and store the updated maintenance record time.

[0023] Furthermore, the periodic maintenance conditions also include: the grease injection record time of the equipment terminal exceeds the preset grease injection maintenance cycle; the grease injection operation time is obtained by the following method:

[0024] Based on the operation time parameters and equipment information, the change of grease injection operation time is obtained;

[0025] Adding the grease injection running time variation to the grease injection running time to obtain and store the updated grease injection running time;

[0026] It is identified whether the grease injection operation time exceeds the preset timing parameter of the timing generation first control instruction. If it exceeds, the timing parameter is added to the grease injection record time to obtain and store the updated grease injection record time.

[0027] Furthermore, the maintenance conditions also include emergency maintenance conditions, and the status parameters also include performance parameters of the equipment, and the performance parameters include temperature, power, current and voltage;

[0028] The emergency maintenance condition is: any one of the performance parameters exceeds the preset emergency maintenance threshold.

[0029] Furthermore, the device management server is also used to:

[0030] Update the device status parameters based on the user's modification request. The device status parameters are used to characterize the use status of the device. The use status includes maintenance status, working status, standby status and standby status.

[0031] Generate a third control instruction based on the user's device replacement request and send it to the corresponding device terminal, the third control instruction is used to instruct the device terminal that needs maintenance and is in a working state or a standby state to be replaced with a corresponding device terminal in a standby state;

[0032] A fourth control instruction is generated based on the device information of the device terminal added by the user and sent to the corresponding device terminal. The fourth control instruction is used to instruct the device management server to connect to the newly added device terminal.

[0033] Furthermore, the device management server is further used to prioritize the device terminals in the standby state based on a preset sorting rule to obtain a sequence number of each device terminal in the standby state;

[0034] The second control instruction is also used to indicate that the equipment terminal in the working state or the standby state that needs maintenance is replaced with the equipment terminal in the standby state and the corresponding equipment terminal with the serial number 1 in the standby state is set to the standby state;

[0035] The maintenance reminder information is also used to indicate the device information of the device terminal to be replaced with the device terminal requiring maintenance.

[0036] Furthermore, the device management server is also used to:

[0037] Generates pending audit information and corresponding audit reminder information based on maintenance data input by maintenance personnel;

[0038] Based on the audit results input by the auditor, determine whether the audit has passed. If passed, generate maintenance update information.

[0039] The maintenance data includes the equipment terminal selected for maintenance, equipment number, maintenance category, maintenance start and end time, maintenance problem description, processing content, and corresponding equipment maintenance record attachments;

[0040] Furthermore, after determining whether the audit is passed based on the audit result input by the auditor, it also includes:

[0041] If the review fails, a modification and re-review reminder is generated. The modification and re-review reminder is used to remind the maintenance personnel to modify the maintenance data for re-review;

[0042] Generate modification review information and corresponding modification reminder information based on maintenance data modified by the maintenance personnel independently or after receiving modification review reminders.

[0043] Furthermore, the device management server is also used to:

[0044] The maintenance records are processed to obtain a maintenance record list, which includes a maintenance equipment position number record and a maintenance frequency record; wherein the maintenance equipment position number record is used to record the latest maintenance record of the equipment terminal corresponding to the equipment position number, and the maintenance frequency record is used to record all maintenance records of all equipment terminals.

[0045] The intelligent system for preventive maintenance of electric motors of the present invention obtains the operating status parameters of the equipment terminal at a regular interval to obtain the actual operating time and usage status of the equipment, and compares the operating status parameters with the preset maintenance conditions. When the equipment reaches the maintenance conditions, the system generates maintenance reminder information, and can promptly maintain the equipment with potential problems, thereby reducing the labor cost of regular manual checks to see if the equipment needs maintenance and unnecessary maintenance, and can also avoid the impact on motor performance and shortened service life caused by insufficient or excessive maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of an intelligent system for preventive maintenance of electric motors according to an embodiment of the present application;

[0047] Figure 2 This is a structural block diagram of an intelligent system for preventive maintenance of electric motors according to an embodiment of the present application;

[0048] Figure 3a This is a structural block diagram of a parameter identification module in an embodiment of the present application;

[0049] Figure 3b This is a flow chart of the regular maintenance process in the embodiment of the present application;

[0050] Figure 4 This is a structural block diagram of an intelligent system for preventive maintenance of electric motors according to another embodiment of the present application;

[0051] Figure 5 This is a structural diagram of an information management module in another embodiment of the present application;

[0052] Figure 6a This is a structural diagram of a record management module in another embodiment of the present application;

[0053] Figure 6b A flowchart of the data review process in the embodiment of the present application;

[0054] Figure 6c This is a schematic diagram of the structure of maintaining a data table in an embodiment of the present application. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0056] See also Figure 1 , Figure 2 , which shows a schematic diagram of an intelligent system for preventive maintenance of motors provided by an exemplary embodiment of the present application. This embodiment can be applied to the maintenance of motors of production equipment in industrial production, such as Figure 1 As shown, the system includes a device management server 110 and a device terminal 120, and the device management server 110 is connected to the device terminal 120. Preferably, the device management server 110 and the device terminal 120 are a functional server and a functional terminal separated from the management server and the terminal in the process operating system on the existing production line, or they can be independent servers and device terminals.

[0057] It is worth noting that the above-mentioned device management server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (CDN), and big data and artificial intelligence platforms. Among them, cloud technology refers to a hosting technology that unifies a series of resources such as hardware, software, and networks within a wide area network or local area network to achieve data calculation, storage, processing, and sharing. Cloud technology is a general term for network technology, information technology, integration technology, management platform technology, application technology, etc. based on the cloud computing business model application. It can form a resource pool that can be used on demand and is flexible and convenient.

[0058] For example, Figure 2 As shown, the device management server is configured with the following modules:

[0059] The information management module 211 is used to store the device information of the device terminal and update the device information according to the new operation status parameters obtained by the data processing module;

[0060] Preferably, the equipment information management module can be responsible for centralized storage and management of detailed information of the equipment terminal, including equipment archives, operating status, maintenance records, etc. Among them, the equipment archive records the detailed archives of the equipment, including the equipment position number, name, model, specification, manufacturer, purchase date, service life, warranty period, etc.; the equipment operating status includes various operating parameters during operation and the actual equipment status, such as temperature, operating time, start time, motor speed, etc. The user can timely grasp the current status of the equipment terminal through the operating parameters of the equipment terminal so as to replace and maintain the equipment terminal in time; preferably, the equipment status includes maintenance status, working status, standby status and standby status; among them, the standby equipment terminal can be used to replace the working equipment terminal first.

[0061] The information management module can also update the equipment information in real time through its information update unit to ensure the accuracy and timeliness of the data, thereby supporting equipment maintenance, equipment replacement, spare parts management, asset management and decision support for industrial production. Preferably, the update content obtained by the information management module can be the equipment update information input by the user, or it can be based on the equipment status monitoring data fed back by the equipment terminal. Preferably, the user can find the equipment terminal for which the information update is required through the equipment terminal device number stored in the equipment management server, and modify and store the equipment information through its equipment update unit. At the same time, the modified equipment information can also be deleted through the unit to restore the original equipment information, so as to avoid the influence of the incorrectly modified equipment information on the intelligent system and actual production.

[0062] The server interaction module 212 is used to send a first control instruction to the device terminal and receive status monitoring data fed back by the device terminal;

[0063] A timing instruction generating module 213, used for timingly generating a first control instruction;

[0064] Preferably, the working principle of the module is to realize the timing function through the internal clock system and programming logic. The user can set the time and configure the command through an intuitive interface, and associate the required control command with a specific time. Once the preset time is reached, the module will trigger the corresponding mechanism and generate the first control command to achieve the timing acquisition of the status monitoring data of the required device terminal.

[0065] The data processing module 214 is used to process the maintenance records and status monitoring data of the equipment to obtain the operating status parameters;

[0066] Preferably, the data processing module 214 analyzes and calculates the maintenance records and status monitoring data of the equipment terminal through specific algorithms and processing procedures. For example, the cumulative operating time of the equipment from the last maintenance to the present can be calculated based on the difference between the time information in the maintenance record and the time information in the status monitoring data. At the same time, the module can also extract key parameters such as temperature, operating time, start time, motor speed, etc. from the status monitoring data, and then organize the calculated and extracted data to generate the operating status parameters of the equipment.

[0067] The parameter identification module 215 is used to identify whether the operating state parameters meet the maintenance conditions, and if so, to generate corresponding maintenance reminder information based on the equipment information, wherein the maintenance conditions are used to indicate the requirements for equipment maintenance of the corresponding equipment terminal;

[0068] Referring to FIG3 , it shows a schematic diagram of the structure of a parameter identification module in an embodiment of the present application, and the module includes the following units:

[0069] The regular maintenance unit 310 is used to identify whether the operating time parameter in the operating status parameter exceeds the preset standard maintenance time, and if so, generate corresponding maintenance reminder information based on the device information;

[0070] Preferably, the process of identifying whether to perform scheduled maintenance is as follows Figure 3b As shown, the specific method is as follows:

[0071] It should be noted that after each scheduled maintenance is completed, the parameters used for identification of the storage device terminal in the scheduled maintenance unit will be initialized, that is, the running time of the device terminal h0 = 0, and the post-maintenance recording time n0 = 0;

[0072] Step 1: Obtain the running status parameters of the device terminal and obtain the running time change Δh based on the running status parameters obtained this time and the running status parameters obtained last time. i ; It should be noted that i is the number of times data is acquired after the last equipment maintenance. For example, this time the operating status parameters are acquired for the third time, and the resulting operating time change is Δh3; if the operating status parameters are acquired for the first time after the last equipment maintenance, the operating time change acquired this time is the operating time parameters generated between the completion time of the last equipment maintenance and the acquisition of the operating status parameters this time.

[0073] Step 2: Based on the obtained running time change Δh i Update the running time of the device terminal i , the updated formula is as follows:

[0074] h i =h i-1 +Δh i

[0075] Step 3: Identify the updated running time h i Whether the following judgment formula is satisfied:

[0076] h i >=A

[0077] Wherein, A is a preset timing parameter for generating the first control instruction at a fixed time. For example, if the first control instruction is generated once every hour, then A=1h;

[0078] If not satisfied, return to step 1 and wait for the next acquisition of the operating status parameters of the device terminal and re-identify;

[0079] If the judgment formula is satisfied, the maintenance record time n is updated. p , the formula for updating the record time is as follows:

[0080] n p =n p-1 +A;

[0081] Where p is the number of times the record time is updated; it should be noted that since the running time h is not updated every time i The update will make the record time n p Therefore, p and i are not related and are independently calculated parameters.

[0082] Step 4: Identify the updated record time n p Whether the periodic maintenance conditions are met; the judgment conditions are as follows:

[0083] n p >=M

[0084] M=TB

[0085] Wherein, M is the pre-set regular maintenance cycle; T is the preventive maintenance reminder time pre-set by the operator; and B is the pre-set reminder threshold.

[0086] If the regular maintenance conditions are not met, the running time h is updated again i , and return to step 1 to wait for the next acquisition of the operating status parameters of the device terminal and re-identification, where the operating time h is updated i The formula is as follows:

[0087] h i =h i-1 +Δh i -A

[0088] If the above conditions are met, the running time and recording time are initialized and the recognition process is completed.

[0089] Exemplarily, the regular maintenance unit 310 includes an inspection and maintenance subunit 311 and a grease injection maintenance subunit 312;

[0090] Among them, the regular maintenance condition in the inspection and maintenance subunit 311 is: whether the inspection and maintenance record time in the operating time parameters exceeds the preset inspection and maintenance cycle; the regular maintenance condition in the grease injection maintenance subunit 312 is: whether the grease injection record time in the operating time parameters exceeds the preset grease injection maintenance cycle.

[0091] Preferably, the preset inspection and maintenance cycle and grease injection maintenance cycle can be the same or different. The parameter values ​​of the above inspection and maintenance record time and grease injection record time are independent parameters that do not affect each other and can be calculated by the above regular maintenance method.

[0092] The intelligent system of the present application associates the inspection and maintenance time and grease injection maintenance time with the actual operating time of the motor, so that the system can judge whether to perform corresponding equipment maintenance based on the actual operating time of the equipment terminal, thereby avoiding the inaccuracy of manual judgment on whether to perform maintenance due to the equipment terminal being overloaded for a certain period of time or not operating for a long time, which in turn leads to insufficient or excessive maintenance that affects the performance and service life of the motor, reduces the cost of manual inspection and maintenance, and effectively improves the utilization efficiency and service life of the equipment terminal.

[0093] An emergency maintenance unit 320 is used to identify whether the performance parameters in the operating status parameters meet the emergency maintenance conditions, and if so, to generate corresponding maintenance reminder information based on the equipment information;

[0094] Preferably, the operating status parameters include the operating temperature of the equipment, the operating power of the equipment, the current and voltage of the input and output of the equipment, etc. Emergency maintenance is triggered when any value in the performance parameters does not belong to the preset value interval set of the performance parameters when the equipment is operating normally; for example, if the equipment is suddenly at an abnormally high temperature during operation, the emergency maintenance unit in the parameter identification module will identify the abnormal temperature based on the acquired operating status parameters, and generate corresponding maintenance reminder information to remind the maintenance personnel that the equipment needs emergency maintenance to ensure that the equipment is promptly inspected and maintained before a serious failure occurs, effectively extending the service life of the equipment.

[0095] The intelligent system of the present application can ensure that if any performance abnormality occurs during the operation of the equipment, it can be discovered and handled in time by setting up an emergency equipment maintenance function, so as to prevent further damage to the equipment or cause safety accidents, thereby ensuring the stable operation of the equipment and the smooth progress of production activities.

[0096] A record management module 216, used to store maintenance records of the device terminal, and also used to obtain maintenance update information and update the stored maintenance records based on the maintenance update information;

[0097] Preferably, the maintenance records of the equipment terminal are stored in the record management module 216. After the maintenance personnel have maintained the equipment terminal, the maintenance data of this maintenance can be input through the record management module 216. Exemplarily, the maintenance record includes the equipment terminal selected for maintenance, the equipment position number, the maintenance category, the maintenance start and end time, the maintenance problem description, the processing content and the corresponding equipment maintenance record attachments, etc.; the module can generate maintenance update information based on the acquired maintenance data, and update the maintenance records stored in the system based on the information, for example, changing the most recent maintenance time and reminder time from the record information of the last maintenance to the relevant record information of this maintenance, and at the same time initializing the recorded maintenance time after the overhaul to facilitate the data processing module to obtain the operating status parameters of the next scheduled maintenance, so as to provide reliable identification conditions for the scheduled maintenance of the equipment, ensure that the equipment is always in a good operating state, and improve the reliability and service life of the equipment.

[0098] Exemplarily, the device terminal is configured with the following modules:

[0099] The data recording module 221 is used to record the operation status of the device terminal and generate status monitoring data according to the acquired first control instruction;

[0100] Preferably, the data recording module 211 can continuously record the operating status of the equipment terminal, including but not limited to various parameters such as temperature, operating time, start-up time, motor speed, etc. At the same time, when receiving the first control instruction, the data recording module 211 will organize the equipment operating status data at this time according to the requirements of the first control instruction to generate status monitoring data, so that the intelligent system can accurately perform regular maintenance and emergency maintenance of the equipment according to the status monitoring data of the equipment terminal.

[0101] The device interaction module 222 is used to receive the first control instruction from the device management server and feed back the status monitoring data of the device terminal to the device management server.

[0102] To sum up, the intelligent system of the present application can obtain the required operating status parameters by processing the status monitoring data obtained regularly, so that the system can judge whether to perform corresponding equipment maintenance based on the actual operating time of the equipment terminal, thereby avoiding the inaccuracy of manual judgment on whether to perform maintenance due to the equipment terminal being overloaded for a certain period of time or not operating for a long time. At the same time, it can also judge whether emergency maintenance is needed based on whether its performance parameters are at abnormal values, thereby realizing the ability to detect equipment abnormalities in a timely manner and handle them, so as to prevent further damage to the equipment or cause safety accidents, and ensure the stable operation of the equipment and the smooth progress of production activities.

[0103] The intelligent system of the present application can perform equipment maintenance according to a predetermined maintenance plan based on the operating status of the motor, thereby reducing unnecessary maintenance of standby equipment and promptly maintaining equipment with problems, saving maintenance costs, and effectively increasing the service life of the motor. At the same time, it can promptly detect and handle abnormal conditions of equipment, effectively eliminating safety hazards.

[0104] In a specific embodiment, the parameter identification module 215 in the device management server is further used to identify whether the operating status parameters meet the maintenance conditions, and if so, to generate corresponding maintenance reminder information based on the device information and then perform the following steps:

[0105] Generate a corresponding second control instruction based on the device information and send the second control instruction to the device terminal, where the second control instruction is used to indicate that the device terminal is controlled to stop running;

[0106] The second control instruction sent by the parameter identification module 215 stops the operation of the device terminal in time, which can prevent the device from continuing to work in a bad state and causing more serious damage, ensure the safety of the device and provide convenient conditions for subsequent maintenance work.

[0107] Exemplarily, after the parameter identification module sends the second control instruction to control the device terminal to stop running, the system changes the actual device state of the device terminal from the working state to the maintenance state. Preferably, the recording operation will be recorded in the generated maintenance reminder information so that the maintenance personnel can quickly understand the device information of the device terminal that needs to be maintained;

[0108] Preferably, the device terminal is also configured with a device control module 223, which is used to control the device terminal to stop running according to the received second control instruction; further, the device interaction module is also used to receive the second control instruction from the device management server.

[0109] When maintenance personnel are performing equipment maintenance, in order to ensure the normal progress of production work, they are generally required to replace the equipment terminal to be maintained with another equipment terminal that has the same work content and can work normally; based on this, please refer to Figure 4 , which shows an intelligent system for preventive maintenance of motors with a function of replacing equipment terminals in another embodiment of the present application;

[0110] In this embodiment, the device management server 410 further includes a device iteration module 417 and a device update module 418; preferably, the device management server 410 and the device terminal 420 have the above Figure 2 , the functions of the embodiment shown in Figure 3.

[0111] Preferably, the information management module 411 is also used to update the corresponding device status parameter based on the user's modification request; wherein the device status parameter is used to characterize the usage status of the device terminal;

[0112] Exemplarily, the use status of the equipment can be divided into maintenance status, working status, standby status and standby status. When the equipment is undergoing maintenance work, it is in maintenance status; when the equipment is operating normally to perform various tasks, it is in working status; if the equipment is ready to be put into use as a backup equipment when other equipment fails, it is in standby status; and when the equipment is in a state of waiting for instructions or not performing any operations temporarily, it is in standby status. The information management module can accurately reflect the specific use status of the equipment by updating the equipment status parameters, so that users can better understand and manage the equipment.

[0113] In a specific application environment, when the maintenance personnel receives the maintenance reminder information, they select the appropriate standby device terminal through the information of the replaceable standby device displayed in the display medium by the device update module 418 in the intelligent system to replace the device terminal that needs maintenance. The device update module 417 generates a third control instruction based on the equipment replacement request of the maintenance personnel and sends it to the corresponding maintenance device terminal and standby device terminal. After the device interaction module 422 of the device terminal 420 receives the third control instruction, the corresponding control operation is performed through the device control module 423. For example, the standby device terminal starts working after receiving the third control instruction, and the designated standby device terminal enters the standby state after receiving the third control instruction. After completing the equipment replacement, the maintenance personnel updates the corresponding status information of the device terminals involved in the equipment replacement through the device management module. For example, the original working device terminal becomes the maintenance device terminal, the standby device terminal becomes the working device terminal, and the designated standby device terminal becomes the standby device terminal. After completing the equipment maintenance, the maintenance device terminal is changed to the standby device terminal.

[0114] In special circumstances, such as when there is no device terminal in standby mode that can serve as a backup device, maintenance personnel can input new device terminal information into the intelligent system through the device iteration module 417 to complete the replacement of the backup device. After receiving the new device information from the maintenance personnel, the device iteration module 417 generates a fourth control instruction to connect the device terminal to the device management server.

[0115] In actual production activities, maintenance personnel are sometimes unable to replace and maintain equipment immediately after receiving maintenance reminders. In this case, production activities cannot proceed normally. Therefore, it is necessary to add the function of automatically replacing the working equipment terminal and the standby equipment terminal. Please refer to Figure 5 , which shows an information management module 500 capable of completing the above functions, which is configured with the following units:

[0116] An information storage unit 510 is used to store device information of a device terminal and updated device information;

[0117] An information updating unit 520 is used to update a device state parameter based on a user's modification request and a second control instruction. The device state parameter is used to characterize a use state of the device terminal. The use state includes a maintenance state, a working state, a standby state, and a standby state.

[0118] The information processing unit 530 is used to prioritize the device terminals in the standby state based on a preset sorting rule to obtain a sequence number of each device terminal in the standby state;

[0119] Exemplarily, the preset sorting rule may be to sort according to the time since the last maintenance. The information processing unit prioritizes the device terminals in the standby state based on this sorting rule, thereby determining a serial number for each device terminal in the standby state, wherein the device terminal ranked 1 is the standby device terminal with the longest time since the last maintenance among the standby device terminals.

[0120] Preferably, when the second control instruction is executed, on the one hand, it can stop the operation of the equipment terminal that needs maintenance; on the other hand, it can also control the replacement of the standby equipment terminal with the working equipment terminal, and at the same time replace the standby equipment terminal with serial number 1 with the standby equipment terminal.

[0121] In summary, the intelligent system of the present application ensures that when equipment maintenance is required, the system can quickly and orderly switch equipment by automatically replacing equipment terminals, ensuring the continuity of work and avoiding production interruptions or service stagnation due to equipment maintenance. At the same time, the preset sorting rules make the priority of standby equipment terminals clear, and can quickly determine the most suitable standby equipment terminal as the backup equipment terminal when equipment switching is required, ensuring the stable operation of the entire system.

[0122] The information acquisition unit 540 is used to acquire new device terminal information input by the maintenance personnel;

[0123] In order to avoid the maintenance personnel’s negligence in inputting wrong maintenance data into the intelligent system, which may cause the maintenance function to fail, the maintenance data should be checked after being input into the intelligent system to ensure the normal operation of the maintenance function. Figure 6a , which shows a structural block diagram of a record management module 600 with review function in an embodiment of the present application, the module is configured with the following units:

[0124] A record storage unit 610, used to store maintenance records of the device terminal;

[0125] A record updating unit 620, configured to update the stored maintenance record based on the maintenance update information;

[0126] The record review unit 630 is used to identify whether the review is passed based on the review result input by the reviewer. If the review is not passed, a modification and re-review reminder is generated; if the review is passed, maintenance update information is generated.

[0127] Preferably, Figure 6b As shown, when new maintenance data is obtained (step S631), the record review unit 630 will automatically trigger the review process and generate an audit reminder (step S632) to ensure that the auditor is aware of the content that needs to be reviewed. After receiving the reminder, the auditor can view the detailed information of the maintenance record through a specific review interface (step S633), including the terminal information of the maintained equipment, maintenance category, maintenance start and end time, maintenance problem description, processing content, and corresponding equipment maintenance record attachments. After obtaining the maintenance reminder, the auditor conducts a comprehensive review of the maintenance record to ensure the accuracy, completeness and rationality of the maintenance record. For example, the auditor will confirm whether the maintenance problem description is clear and accurate, whether the processing content is appropriate and effective, whether the maintenance start and end time are in line with the actual situation, whether the replaced equipment is reasonable, etc.

[0128] After completing the audit, the auditor enters the corresponding audit result in the system, and the record audit unit identifies the audit result. If the audit fails, a modification and re-examination reminder is generated (step S635). The modification and re-examination reminder is used to inform the maintenance personnel that the uploaded maintenance data needs to be modified, and points out the specific content and requirements that need to be modified. After receiving the reminder, the maintenance personnel can modify and improve the maintenance record and resubmit the modified maintenance data (step S636). If the audit passes, maintenance update information will be generated and passed to the record update unit 620 to update the maintenance record (step S634), ensuring that the maintenance record is always kept up to date and accurate.

[0129] The record acquisition unit 640 is used to generate the information to be reviewed and the corresponding review reminder based on the maintenance data input by the maintenance personnel; wherein the maintenance data table is as follows: Figure 6c As shown, the maintenance data includes the equipment terminal selected for maintenance, equipment number, maintenance category, maintenance start and end time, maintenance problem description, processing content and corresponding equipment maintenance record attachments;

[0130] The record sorting unit 650 is used to process the maintenance record to obtain a maintenance record list, which includes a maintenance equipment position number record and a maintenance frequency record; wherein the maintenance equipment position number record is used to record the latest maintenance record of the equipment terminal corresponding to the equipment position number, and the maintenance frequency record is used to record all maintenance records of all equipment terminals.

[0131] For example, users can quickly understand the recent maintenance status of equipment terminals with specific equipment numbers through the maintenance equipment number records, providing a reference for equipment status assessment and fault diagnosis. They can also grasp the maintenance history of all equipment as a whole through the maintenance frequency records, which helps to analyze the reliability of equipment and the trend of maintenance needs, and provide data support for the formulation of equipment management strategies. For example, the maintenance cycle and normal performance parameter range in the identification conditions can be adjusted according to the maintenance frequency records.

[0132] Reminder generation unit 660, used to generate review reminders, modification reminder information and modification re-examination reminders;

[0133] Preferably, the reminder generation unit can generate an audit reminder to notify the auditor that there is content that needs to be audited, ensuring that relevant information such as maintenance records can be audited in a timely manner, and generate modification reminder information after the maintenance personnel enters the modified maintenance data in the intelligent system to remind the auditor about the changes in the audit content; it is also used to generate a modification re-review reminder when the audit fails, reminding the maintenance personnel to modify the content that has not passed the audit so that it can be submitted for audit again.

[0134] The embodiment of the present application adds a record audit function, which is beneficial for timely discovery and correction of erroneous equipment information, making subsequent data processing and analysis based on the record information more reliable. It can also determine whether there are omissions in the maintenance record based on the content of the uploaded maintenance data, thereby ensuring the integrity of the record information.

[0135] To summarize, the intelligent system of the present application can obtain the required operating status parameters by processing the status monitoring data obtained regularly, so that the system can judge whether to perform corresponding equipment maintenance based on the actual operating time of the equipment terminal, avoiding the inaccuracy of manual judgment on whether to perform maintenance due to overload operation of the equipment terminal within a certain period of time or non-operation for a long time. At the same time, it can also judge whether emergency maintenance is needed based on whether its performance parameters are at abnormal values, thereby realizing the ability to timely detect and handle equipment abnormalities. The system also controls the equipment terminal to replace equipment through the second control instruction generated by the parameter identification module, thereby realizing the continuous production activities during the entire maintenance process, ensuring the stability of the entire production process, and through the review and modification of the maintenance records, ensuring the accuracy of the maintenance records and effectively updating the record information required by the parameter identification module to ensure that the system can operate effectively and efficiently in the long term.

[0136] Therefore, the intelligent preventive maintenance system for electric motors of the present application replaces manual inspection with system inspection, effectively reducing the maintenance cost of manual inspection. At the same time, maintenance is performed according to the actual operating time to avoid insufficient or excessive maintenance that affects the performance and service life of the motor, effectively improving the utilization efficiency and service life of the equipment terminal; by automatically replacing equipment and updating maintenance records, the continuous progress of production activities and the stable operation of the intelligent system are effectively guaranteed.

[0137] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An intelligent system for preventive maintenance of electric motors, characterized in that: include: A device management server and a device terminal; the device management server is connected to the device terminal; The device management server is used for: Storing device information and maintenance records of the device terminal, wherein the device information includes operating status parameters of the device; generating a first control instruction at regular intervals and sending it to the device terminal, and receiving status monitoring data fed back by the device terminal, wherein the first control instruction is used to instruct the device terminal to feed back the status monitoring data of the running status record; Processing based on the maintenance record and the status monitoring data to obtain and update the operating status parameter; Identify whether the operating status parameter satisfies a maintenance condition, and if so, generate corresponding maintenance reminder information based on the device information, wherein the maintenance condition is used to indicate a requirement that the corresponding device terminal needs to perform device maintenance; Acquiring maintenance update information and updating the maintenance record based on the maintenance update data; The device terminal is used to receive and execute the first control instruction, and is also used to send the status monitoring data to the device management server.

2. The intelligent system according to claim 1, characterized in that: After the identification of whether the operating status parameter satisfies the maintenance condition and, if so, generating corresponding maintenance reminder information based on the device information, the method further includes: Generate a corresponding second control instruction based on the device information and send the second control instruction to the device terminal, where the second control instruction is used to indicate that the device terminal is controlled to stop running; The device terminal is also used to receive and execute the second control instruction from the device management server.

3. The intelligent system according to claim 2, characterized in that: The maintenance conditions include regular maintenance conditions, and the operating state parameters include operating time parameters of the equipment; The periodic maintenance conditions include: the maintenance record time of the equipment terminal exceeds the preset maintenance cycle; The maintenance operation time is obtained by the following method: Based on the operation time parameter and the equipment information, a maintenance operation time variation is obtained; Adding the maintenance operation time variation to the maintenance operation time to obtain and store the updated maintenance operation time; Identify whether the maintenance operation time exceeds the preset timing parameter of the timing generation first control instruction, if exceeded, add the timing parameter to the maintenance record time, obtain and store the updated maintenance record time.

4. The intelligent system according to claim 3, characterized in that: The periodic maintenance condition also includes: the grease injection record time of the equipment terminal exceeds the preset grease injection maintenance cycle; The grease injection running time is obtained by the following method: Based on the operation time parameter and the equipment information, a change in the grease injection operation time is obtained; Adding the grease injection running time variation to the grease injection running time to obtain and store the updated grease injection running time; Identify whether the grease injection operation time exceeds a preset timing parameter for generating a first control instruction; if so, add the timing parameter to the grease injection record time to obtain and store an updated grease injection record time.

5. The intelligent system according to claim 2, characterized in that: The maintenance conditions also include emergency maintenance conditions, and the status parameters also include performance parameters of the equipment, including temperature, power, current and voltage; The emergency maintenance condition is that any value of the performance parameter does not belong to a preset normal value range set.

6. The intelligent system according to claim 5, characterized in that: The device management server is also used for: updating the device status parameter based on the modification request of the user, wherein the device status parameter is used to characterize the use status of the device terminal, and the use status includes maintenance status, working status, standby status and standby status; Generate a third control instruction based on the user's device replacement request and send it to the corresponding device terminal, the third control instruction is used to instruct the device terminal in the working state to be replaced with a device terminal in the standby state and to set the corresponding device terminal in the standby state to the standby state; A fourth control instruction is generated based on the device information of the device terminal added by the user and sent to the corresponding device terminal, wherein the fourth control instruction is used to instruct the device management server to connect to the newly added device terminal.

7. The intelligent system according to claim 5, characterized in that: The device management server is also used to prioritize the device terminals in the standby state based on a preset sorting rule to obtain a sequence number of each device terminal in the standby state; The second control instruction is also used to indicate that the equipment terminal in the working state that needs maintenance is replaced with an equipment terminal in the standby state and the corresponding equipment terminal with a serial number 1 in the standby state is set to the standby state; The maintenance reminder information is also used to indicate the device information of the device terminal to be replaced with the device terminal requiring maintenance.

8. The intelligent system according to claims 1-7, characterized in that: The device management server is also used for: Generates information to be reviewed and corresponding review reminders based on maintenance data input by maintenance personnel; the maintenance data includes the equipment terminal selected for maintenance, equipment bit number, maintenance category, maintenance start and end time, maintenance problem description, processing content and corresponding equipment maintenance record attachments; Based on the audit results input by the auditor, determine whether the audit has passed. If passed, generate maintenance update information.

9. The intelligent system according to claim 8, characterized in that: After the audit result input by the auditor is used to identify whether the audit is passed, the following steps are also included: If the review fails, a modification and re-review reminder is generated, and the modification and re-review reminder is used to indicate a reminder for the maintenance personnel to modify the maintenance data for re-review; Modification review information and corresponding modification reminder information are generated based on the maintenance data modified by the maintenance personnel independently or after receiving the modification review reminder.

10. The intelligent system according to claim 9, characterized in that: The device management server is also used for: Processing the maintenance record to obtain a maintenance record list, wherein the maintenance record list includes a maintenance equipment position number record and a maintenance frequency record; The maintenance equipment number record is used to record the latest maintenance record of the equipment terminal corresponding to the equipment number, and the maintenance number record is used to record all maintenance records of all equipment terminals.

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