Standby machine lubrication detection method and system, standby machine and storage medium

Abstract

The invention discloses a standby machine lubrication detection method and system, a standby machine and a storage medium, and relates to the technical field of lubrication detection, the standby machine lubrication detection method and system are applied to a standby machine lubrication detection system, and the standby machine lubrication detection system comprises an oil pump of the standby machine, a lubrication pipeline and a pressure sensor. Corresponding oil pumps are started to supply oil to lubricating pipelines, and a foundation is laid for oil pressure data acquisition; the pressure sensor collects and judges first oil pressure, and initial state screening of the lubricating system is achieved; when the first oil pressure does not reach the standard, the oil pump is controlled to increase pressure so as to increase the pipeline oil pressure, a basis is provided for fault layering judgment, and shutdown caused by initial low-pressure misjudgment serious faults is avoided; the pressurized second oil pressure is collected and judged, and a basis is provided for follow-up reminding or shutdown protection; and if the second oil pressure reaches the standard, reminding is output, abnormity is eliminated through pressurization, the lubrication detection precision is improved, and bearing damage when the standby machine is started is avoided.

Description

Technical Field

[0001] This application relates to the field of lubrication testing technology, and in particular to a method, system, standby machine and storage medium for lubrication testing. Background Technology

[0002] In industrial sectors such as polymer material processing and metal rolling, core production equipment needs to operate continuously to ensure production continuity. Sudden malfunctions and shutdowns can result in significant losses. Therefore, the industry commonly equips such core equipment with backup machines. These backup machines need to be on standby for extended periods to quickly fill in when the main equipment fails, and their startup stability directly determines whether production can be restored in a timely manner.

[0003] The reliability of standby machine startup hinges on the lubrication system. Bearings, as critical transmission components, are highly susceptible to dry friction if lubrication fails during startup, leading to bearing wear, seizure, or even damage. This not only increases maintenance costs but also prolongs production downtime. Furthermore, during extended standby periods, the lubrication system is prone to problems: long-term static storage of oil can cause impurities to settle and clog oil supply channels; seals are susceptible to aging and failure due to fluctuations in ambient temperature and humidity, resulting in oil leaks. If these problems are not detected in advance, they can lead to lubrication failure during startup.

[0004] Current standby lubrication testing has limitations. The main equipment linkage testing relies on the main equipment's power and cannot be carried out when the standby machine is shut down independently. This makes it difficult to identify potential standby problems, and the bearings may still be damaged due to lubrication failure during startup. This problem urgently needs to be solved.

[0005] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is prior art. Summary of the Invention

[0006] The main purpose of this application is to provide a method, system, standby unit and storage medium for detecting lubrication abnormalities in a standby unit when it is independently shut down, which leads to the technical problem that the bearings are easily damaged when the standby unit is started.

[0007] To achieve the above objectives, this application provides a standby unit lubrication detection method. This method is applied to a standby unit lubrication detection system, which includes an oil pump, lubrication lines, and a pressure sensor for the standby unit. The standby unit lubrication detection method includes:

[0008] When a lubrication test command is detected from the standby unit, the oil pump corresponding to the lubrication test command is controlled to supply oil to the lubrication pipeline;

[0009] The pressure sensor collects the first oil pressure data of the lubrication pipeline in real time and determines whether the first oil pressure data is greater than the preset oil pressure threshold.

[0010] If the first oil pressure data is less than or equal to the preset oil pressure threshold, the oil pump is controlled to supply oil to the lubrication pipeline in the preset boost mode.

[0011] The pressure sensor collects the second oil pressure data of the lubrication pipeline in real time and determines whether the second oil pressure data is greater than the preset oil pressure threshold.

[0012] If the second oil pressure data is less than or equal to the preset oil pressure threshold, a preset first reminder message is output, which is used to remind that the lubrication fault of the standby machine has been eliminated.

[0013] Furthermore, to achieve the above objectives, this application also provides a standby unit lubrication detection system. The standby unit lubrication detection system includes a standby unit, an oil pump, lubrication lines, and a pressure sensor. The standby unit is connected to the oil pump, lubrication lines, and pressure sensor. The standby unit includes:

[0014] The component control module is used to control the oil pump corresponding to the lubrication detection command to supply oil to the lubrication pipeline when the lubrication detection command is detected from the standby machine;

[0015] The data judgment module is used to collect the first oil pressure data of the lubrication pipeline in real time through the pressure sensor and to determine whether the first oil pressure data is greater than the preset oil pressure threshold.

[0016] The component control module is used to control the oil pump to supply oil to the lubrication pipeline in a preset boosting mode if the first oil pressure data is less than or equal to the preset oil pressure threshold.

[0017] The data judgment module is used to collect the second oil pressure data of the lubrication pipeline in real time through the pressure sensor and to determine whether the second oil pressure data is greater than the preset oil pressure threshold.

[0018] The information output module is used to output a preset first reminder message if the second oil pressure data is less than or equal to a preset oil pressure threshold. The preset first reminder message is used to remind that the lubrication fault of the standby machine has been eliminated.

[0019] In addition, to achieve the above objectives, this application also provides a standby machine, including a processor, a memory, and a standby machine lubrication detection program stored in the memory that can be executed by the processor, wherein when the standby machine lubrication detection program is executed by the processor, it implements the steps of the standby machine lubrication detection method described above.

[0020] This application also provides a storage medium storing a standby machine lubrication detection program, wherein when the standby machine lubrication detection program is executed by a processor, it implements the steps of the standby machine lubrication detection method as described above.

[0021] This application provides a standby machine lubrication detection method, applied to a standby machine lubrication detection system. The standby machine lubrication detection system includes an oil pump, lubrication pipelines, and a pressure sensor. When a lubrication detection command is detected from the standby machine, the method controls the corresponding oil pump to supply oil to the lubrication pipelines, precisely triggering the oil supply action for lubrication detection. This avoids oil waste or abnormal pipeline pressure caused by accidental pump start-up without a command, solving the problem of invalid detection due to no oil in the pipelines before detection, and providing a basic condition for oil pressure data acquisition. The method uses a pressure sensor to collect first oil pressure data from the lubrication pipelines in real time and determines whether the first oil pressure data is greater than a preset oil pressure threshold, achieving initial state screening of the standby machine lubrication system. This quickly identifies situations where the pipelines are not blocked and the basic oil pump supply is normal, avoiding energy waste caused by directly entering the boost mode. If the first oil pressure data is less than or equal to the preset oil pressure threshold, the method controls the oil pump to supply oil to the lubrication pipelines in a preset boost mode to achieve... The pressurization of the oil in the lubrication pipeline simulates the working pressure environment of the lubrication system, providing a basis for fault stratification and preventing shutdowns due to initial low pressure being directly misjudged as serious faults. This ensures the availability of the standby unit and improves the accuracy of fault diagnosis and system reliability. A pressure sensor collects the second oil pressure data of the lubrication pipeline in real time under the preset pressurization mode and determines whether the second oil pressure data exceeds the preset oil pressure threshold. This provides a basis for subsequent output reminders or triggering shutdown protection, reducing misjudgments caused by pressure fluctuations and improving the accuracy of fault diagnosis. If the second oil pressure data exceeds the preset oil pressure threshold, a preset first reminder message is output. This message informs the user that the lubrication fault of the standby unit has been resolved, providing clear feedback that the abnormality in the standby unit's lubrication system has been eliminated through pressurization. This allows the user to be promptly informed that the lubrication status has returned to normal, avoiding unnecessary shutdowns for maintenance due to misjudgments of serious faults. This ensures the standby unit can be reliably started at any time, improving the efficiency and accuracy of fault handling. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating the first embodiment of the standby machine lubrication testing method of this application;

[0023] Figure 2 This is a schematic diagram of the standby machine lubrication detection system architecture involved in this application;

[0024] Figure 3 This is a multi-module interactive signaling diagram of the lubrication detection involved in this application;

[0025] Figure 4 This is a schematic diagram of the standby machine lubrication detection system of this application;

[0026] Figure 5 This is a schematic diagram of the hardware operating environment involved in the device in this application.

[0027] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0029] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0030] In industrial fields such as polymer material processing and metal rolling, core equipment needs to operate continuously to ensure production continuity. Standby machines are kept on standby for a long time to quickly fill in when the main equipment fails. Their startup stability directly determines the production recovery efficiency, and startup reliability depends on the lubrication system. If the lubrication fails during startup, the bearings will wear, jam, or even be damaged due to dry friction, which will increase maintenance costs and prolong the production interruption time.

[0031] However, existing lubrication monitoring systems have significant limitations: online lubrication monitoring systems are only applicable to the main unit in operation and cannot be activated when the standby unit is shut down; pressure sensors are typically used for monitoring equipment operating status and have not established a correlation control logic with the offline lubrication of the standby unit. Furthermore, after prolonged shutdown of the standby unit, the lubrication system is prone to problems such as oil sedimentation clogging pipelines and aging and failure of seals leading to leaks. These problems are difficult to detect during shutdown due to the lack of effective detection methods, and may ultimately cause lubrication failure and damage to bearings upon startup. Currently, the main equipment linkage monitoring relies on the main equipment's power, and monitoring cannot be carried out when the standby unit is independently shut down.

[0032] Therefore, based on the shortcomings of existing standby machine lubrication detection schemes, this application proposes a standby machine lubrication detection method, system, standby machine and storage medium to realize automatic lubrication detection when the standby machine is in a shutdown state, ensuring that it can be switched to the working state at any time, and solving the equipment startup risk caused by lubrication failure.

[0033] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or a device capable of performing the above functions, or a standby machine with lubrication detection function. The following description uses a standby machine with lubrication detection function as an example to illustrate this embodiment and the subsequent embodiments.

[0034] Based on this, the embodiments of this application provide a method for detecting the lubrication of a standby machine, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the standby machine lubrication detection method of this application.

[0035] Reference Figure 1This application provides a standby unit lubrication detection method, applied to a standby unit lubrication detection system. The standby unit lubrication detection system includes an oil pump, lubrication pipelines, and a pressure sensor for the standby unit. The standby unit lubrication detection method includes:

[0036] Step S10: When a lubrication detection command from the standby unit is detected, control the oil pump corresponding to the lubrication detection command to supply oil to the lubrication pipeline;

[0037] Optionally, this application applies to standby machines in rolling mills used in polymer material processing and metal rolling, and is used in standby machine lubrication and detection systems, such as... Figure 2 As shown, Figure 2 This is a schematic diagram of the standby machine lubrication detection system architecture involved in this application. The standby machine lubrication detection system for the calendering mill includes a pressure sensor and an HMI-PLC (Human Machine Interface, Programmable Logic Controller). The system comprises a programmable logic controller (PLC) control unit, an oil pump actuator (hereinafter referred to as "oil pump"), an audible and visual alarm, a cloud platform data storage unit (hereinafter referred to as "cloud platform data storage unit"), and a standby lubrication pipeline (hereinafter referred to as "lubrication pipeline"). Optionally, a pressure sensor with a 4-20mA output (0-10MPa) is used to detect the real-time oil pressure of the standby lubrication pipeline and send a real-time oil pressure signal to the HMI-PLC control unit. The HMI-PLC control unit integrates a Siemens S7-1200 series PLC controller and a 7-inch touchscreen HMI, capable of performing logic operations, threshold judgments, and generating control commands. It also supports parameter setting, status display, and manual operation. The oil pump actuator uses a frequency converter-controlled gear pump to start, stop, and adjust the oil supply according to the commands of the HMI-PLC control unit. The audible and visual alarm consists of a three-color light and a buzzer, providing audible and visual warnings in case of lubrication abnormalities. The cloud platform data storage unit is used to retain system operation data.

[0038] Optionally, the standby lubrication detection system includes a perception layer, a decision-making layer, an execution layer, an interaction layer, and a safety layer. The perception layer includes pressure sensing, oil quality analysis, temperature sensing, and vibration monitoring, responsible for collecting key data on lubrication system pressure, oil quality, temperature, and vibration. The decision-making layer includes mode selection, predictive maintenance, adaptive algorithms, and safety decisions, completing operation mode selection, fault prediction, algorithm adaptation, and safety judgment based on data from the perception layer. The execution layer includes frequency conversion control, oil pump execution, valve adjustment, and emergency stop protection, realizing frequency conversion control of lubrication, oil pump start / stop, valve opening / closing, and emergency shutdown according to the decisions layer's instructions. The interaction layer includes HMI interaction and remote monitoring, providing local human-machine operation and remote status monitoring functions. The safety layer includes multi-level alarms and mechanical protection, ensuring system safe operation through tiered alarms and mechanical protection. All layers and components work together to achieve intelligent lubrication control of the calender.

[0039] Optionally, multi-level alarms include: when an alarm event occurs, entering the alarm handling process; if it is a level 1 alarm, performing a confirmation shutdown operation and locking the startup permission of the standby machine; if it is a level 2 alarm, performing a confirmation alarm operation, such as triggering an audible and visual alarm; if it is a level 3 alarm, only recording without triggering any action, that is, writing to the log archive and not executing shutdown or other control commands, so as to avoid interfering with normal operation, and taking differentiated handling for faults of different severity levels to improve the pertinence and timeliness of fault response.

[0040] Optionally, after HMI operation, a mode selection is performed. If manual mode is selected, the direct control interface is entered, where start / stop and frequency adjustment operations can be performed. If automatic mode is selected, the parameter setting interface is entered, where refueling time / interval time, temperature upper and lower limits, and frequency range can be set.

[0041] Optionally, in the standby lubrication detection system, after the system starts, the "FreqCheck" (Frequency Check) and "Initialization Self-Check" operations are executed simultaneously: if the initialization self-check fails, the system triggers a fault alarm to intercept the fault in advance and reduce the risk of operating under risk; if the self-check is successful, the system enters the sensor data acquisition stage to provide basic data support for subsequent operation; after the sensor data acquisition is completed, the operating mode is selected; the operating modes include manual mode and automatic mode.

[0042] Optionally, in manual mode: The "Direct Manual Control" module is entered, allowing manual operation of the oil pump's start and stop. This is followed by the "Safety Monitoring" phase, which triggers "Delayed Shutdown," "Frequency Reduction Operation," and "Immediate Shutdown" based on three criteria: "Oil Pressure < 1 Bar," "Oil Temperature > 90℃," and "Bearing Temperature > 85℃." Through real-time multi-parameter judgment and tiered response, a single anomaly is prevented from escalating into a serious fault, improving operational safety. Next, the "Output Control" module is entered, which includes inverter execution, alarm light indication, and buzzer control, enabling direct regulation of the equipment's operating status. Then, "Status Feedback," "Operating Data," "Cloud Platform Storage," "Predictive Analysis," "Health Index," and "Maintenance Early Warning" are executed sequentially, uploading operating data to the cloud platform for analysis to provide a basis for subsequent maintenance. In automatic mode: The "Intelligent Control" module is entered, which includes bearing temperature detection, frequency calculation, temperature-frequency conversion, frequency setting, and "Intermittent Operation Control" (which executes start-up oil pumps based on "Operating Time" and "Interval Time"). The system (including pump and oil pump stop operation) dynamically converts temperature and frequency and controls intermittently to match actual operating conditions, adjusts energy consumption, reduces ineffective running time, and extends the life of components such as oil pumps. It then enters the "output control" module (including inverter execution, alarm light indication, and buzzer control), and sequentially executes "status feedback," "operating data," "cloud platform storage," "predictive analysis," "health index," and "maintenance warning," consistent with the subsequent process in manual mode. Through this process, manual and automatic modes share the "output control" to "maintenance warning" flow, ensuring that operating data generated in both modes is uniformly uploaded to the cloud platform via "status feedback," and then "health index" is generated through "cloud platform storage" and "predictive analysis," triggering "maintenance warnings." This ensures data management consistency and transforms reactive repair into proactive prevention, reducing the probability of sudden downtime. Simultaneously, the combination of manual and automatic modes addresses the need for manual intervention in special scenarios and the efficiency of automated operation in conventional scenarios, comprehensively improving the system's reliability, economy, and ease of maintenance.

[0043] Optionally, when a lubrication detection command for the standby machine is detected, the HMI-PLC control unit sends a control command to the oil pump actuator. After receiving the command, the oil pump actuator starts and supplies oil to the lubrication pipeline of the standby machine. Through the coordination of various hardware modules, the control response speed is greatly improved compared with manual detection. The combination of pressure feedback and dynamic adjustment of the oil pump greatly improves the accuracy of pipeline oil pressure control, thereby effectively reducing the risk of equipment downtime due to lubrication failure.

[0044] Step S20: Collect the first oil pressure data of the lubrication pipeline in real time through the pressure sensor, and determine whether the first oil pressure data is greater than the preset oil pressure threshold.

[0045] Optionally, the first oil pressure data of the lubrication pipeline can be collected in real time by a pressure sensor, and it can be determined whether the first oil pressure data is greater than the preset oil pressure threshold. This can quickly respond to lubrication abnormalities, prevent the bearings of the main calender from wearing due to insufficient lubrication, reduce the accidental damage rate of the bearings, ensure production continuity, and make the oil pressure data traceable, which is convenient for subsequent maintenance and analysis.

[0046] Optionally, in the standby scenario of the calender, a preset oil pressure threshold is first set, which corresponds to a range of 14-18 MPa. In this embodiment, it is specifically set to 16 MPa (MegaPascal). Then, the pressure sensor installed at the outlet of the lubrication pipeline of the main calender collects the first oil pressure data of the pipeline in real time at 100ms intervals and transmits the data to the HMI-PLC control unit. After receiving the data, the HMI-PLC control unit compares the first oil pressure data with the preset oil pressure threshold of 16 MPa one by one. At the same time, in order to avoid misjudgment caused by single data fluctuations, it is set that the first oil pressure data is greater than the preset oil pressure threshold only when the first oil pressure data collected for three consecutive times is greater than 16 MPa. At this time, the controller triggers the subsequent basic response command.

[0047] Optionally, after step S20, step C80 is also included: if the first oil pressure data is greater than the preset oil pressure threshold, then a preset second reminder message is output, wherein the preset second reminder message is used to remind the user that the lubrication status of the standby machine is normal.

[0048] Optionally, the first oil pressure data refers to any set or average value of the real-time oil pressure data of the lubrication pipeline collected by the pressure sensor at a preset sampling frequency (e.g., 3 times / second) within a preset first time period (e.g., 10 seconds). In this embodiment, the last sampled data within 10 seconds is taken as the first oil pressure data, for example, the collected value is 0.7MPa; the preset oil pressure threshold is as mentioned above, such as 0.6MPa; when it is determined that 0.7MPa > 0.6MPa, the system generates a preset second reminder message, which includes specific content (e.g., "Lubrication status is normal, current oil pressure..."). 0.7MPa”), output format and output carrier – The output format can be divided into local display and remote push. Locally, it is displayed in green scrolling text through the HMI human-machine interface. Remotely, it is sent to the user terminal (such as user A's mobile APP) through the wireless communication module. The information push delay is ≤1 second. At the same time, the judgment result (including the first oil pressure data, the preset oil pressure compliance threshold, and the comparison result) and the output time and output status (such as “displayed / pushed”) of the preset second reminder information are associated and stored in a non-transitory computer-readable storage medium for easy subsequent traceability and query.

[0049] Therefore, by clearly defining the rules for collecting and comparing the first oil pressure data, we can ensure that the determination of normal lubrication status is supported by specific data, avoiding misjudgments due to ambiguous data selection. The multi-format output of the preset second reminder information allows users to obtain timely feedback on the normal lubrication system through local terminals or remote devices, eliminating user concerns about the equipment status. Related data is stored in conjunction with the system to provide a basis for subsequent equipment maintenance. Simultaneously, this step, as the final link in the "pressure boosting-monitoring-feedback" closed loop, clarifies the handling process when the lubrication status is normal, complementing the alarm mechanism for insufficient oil pressure. This makes the monitoring of the entire lubrication system status more complete, further enhancing the user's control over the standby machine's operating status.

[0050] Step S30: If the first oil pressure data is less than or equal to the preset oil pressure threshold, control the oil pump to operate in the preset boost mode and supply oil to the lubrication pipeline.

[0051] Optionally, if the first oil pressure data is less than or equal to the preset oil pressure threshold, the oil pump is controlled to operate in a preset boosting mode and supply oil to the lubrication pipeline to achieve boosted oil supply to the lubrication pipeline.

[0052] Optionally, the preset oil pressure threshold range is 14-18 MPa, specifically set to 16 MPa in this embodiment. After receiving the data, the controller compares the first oil pressure data with 16 MPa sequentially. If the first oil pressure data collected three times consecutively is less than or equal to 16 MPa, the variable piston oil pump of the lubrication system is immediately triggered to switch to the preset booster mode. Optionally, the preset booster mode is as follows: in the first stage, the oil pump speed is increased from 1500 rpm to 1800 rpm for 10 seconds. If the first oil pressure still does not reach 16 MPa after this stage, in the second stage, the pipeline bypass valve is opened, and the oil supply flow is adjusted through the pressure compensation valve to assist the oil pump in boosting the oil supply to the lubrication pipeline, thereby quickly replenishing the oil pressure and preventing the main calender from experiencing increased bearing friction due to insufficient lubrication pressure. The time for the oil pressure to recover to the threshold is shortened to within half a minute, reducing the risk of equipment downtime. At the same time, the standby calender remains in standby status, further ensuring production continuity and reducing maintenance costs.

[0053] Optionally, in the standby scenario of the calender, a preset oil pressure threshold is first set, with the preset oil pressure threshold corresponding to a range of 14-18 MPa. In this embodiment, it is specifically set to 16 MPa. Then, the pressure sensor installed at the outlet of the lubrication pipeline of the main calender collects the first oil pressure data of the pipeline in real time at an interval of 100 ms (millisecond) and transmits the data to the HMI-PLC control unit. After receiving the data, the HMI-PLC control unit compares the first oil pressure data with the preset oil pressure threshold of 16 MPa one by one. At the same time, in order to avoid misjudgment caused by single data fluctuations, it is set that the first oil pressure data is greater than the preset oil pressure threshold only when the first oil pressure data collected for three consecutive times is greater than 16 MPa. At this time, the controller triggers the subsequent basic response command.

[0054] Step S40: The second oil pressure data of the lubrication pipeline under the preset boost mode is collected in real time by the pressure sensor, and it is determined whether the second oil pressure data is greater than the preset oil pressure threshold.

[0055] Optionally, the second oil pressure data of the lubrication pipeline under the preset boost mode can be collected in real time by a pressure sensor, and it can be determined whether the second oil pressure data is greater than the preset oil pressure threshold to realize automatic lubrication detection when the machine is stopped, so as to ensure that the standby machine can be switched to the working state at any time.

[0056] Optionally, the lubrication system of the standby calender includes lubrication lines, a pressure sensor, an oil pump, and a controller. The pressure sensor is installed at a key node of the lubrication line at the bearing housing inlet, and is fixed to a flat surface by four screws. The contact area roughness Ra≤1.6μm and thickness≥5mm. The preset pressurization mode is that when the standby machine is stopped, the oil pump automatically increases the lubrication system pressure to the detection range of 2-3MPa to simulate the lubrication conditions under working conditions. The preset oil pressure threshold is set to 2.5MPa, which is determined based on bearing lubrication requirements and industry standards to ensure the minimum pressure requirement for lubrication film formation.

[0057] Optionally, when the standby unit is in a stopped state, the controller periodically triggers a booster mode, and the pressure sensor collects the second oil pressure data of the lubrication pipeline in real time; for example, the booster process is started every 10 minutes and lasts for 30 seconds; the controller receives the oil pressure data through the analog input module and compares it with the preset oil pressure threshold; if the oil pressure data is greater than 2.5MPa, the lubrication system is determined to be normal, and the standby unit can switch to the working state at any time; if the standard is not met for three consecutive tests, an audible and visual alarm is triggered, thereby actively boosting the detection of potential problems such as blockage or leakage in the lubrication pipeline when the standby unit is stopped, effectively reducing the risk of bearing damage during startup.

[0058] Optionally, after step S40, the method further includes: if the second oil pressure data is less than or equal to a preset oil pressure threshold, a preset first-level alarm command is triggered, and the startup permission of the standby machine is locked based on the preset first-level alarm command.

[0059] Optionally, the second oil pressure data refers to the lubrication pipeline oil pressure data collected by the pressure sensor at a preset second sampling frequency (e.g., 2 times / second) at the end of a preset second time period (e.g., 20 seconds). In this embodiment, the data is 0.5 MPa. The preset oil pressure threshold is the aforementioned calculated dynamic oil pressure threshold (e.g., 0.6 MPa). The determination logic is that the trigger condition is met when "the second oil pressure data ≤ the preset oil pressure threshold".

[0060] Furthermore, when it is determined that 0.5MPa≤0.6MPa, the system control module generates a first-level alarm command. The first-level alarm command includes, but is not limited to, a fault code (such as "01" representing that the oil pressure is not up to standard), an alarm level (such as first level, which is higher than second-level alarm), and an execution command (such as locking the start-up permission). It is transmitted to the oil pump motor controller, the standby start-up control unit, and the interaction module through the internal CAN bus, with a transmission delay of ≤0.2 seconds.

[0061] Optionally, the alarm output format includes, but is not limited to: displaying the flashing red text "Level 1 Alarm: Oil pressure not up to standard, start prohibited" on the local HMI human-machine interface, accompanied by a buzzer (frequency 2kHz); or remotely pushing alarm information to user A's terminal APP via a 4G module, including the current oil pressure, fault location, and handling suggestions.

[0062] Optionally, when the standby machine startup permission is locked based on the first-level alarm command, the standby machine startup control unit performs the locking action. This unit has a built-in startup relay. The control module sends a high-level signal to the relay to disconnect the standby machine startup circuit. At the same time, the locked state ("locked") and the locking time are stored in EEPROM (Electrically Erasable Programmable Read-Only Memory).

[0063] It should be noted that the unlocking conditions include, but are not limited to: after the user has inspected the lubrication system on-site (such as checking for pipe blockages and replenishing lubricating oil), they must enter a 6-digit authorization password through the HMI. After the control module verifies the password, it sends a low-level signal to the relay to restore the start-up circuit. The oil pressure data at the end of the preset second time period is used as the judgment basis, which can fully verify that the system still cannot meet the standard after pressure adjustment, avoiding misjudgment. The high-level prompts and multi-terminal outputs of the first-level alarm can quickly attract the user's attention and shorten the fault response time. Locking the start-up permission directly cuts off the standby machine's start-up path, preventing serious faults such as bearing wear and component jamming caused by insufficient lubrication after the standby machine starts, ensuring equipment safety. Clear unlocking conditions and data storage not only standardize the fault handling process but also provide traceability basis for subsequent fault analysis, further improving the safety and reliability of the standby machine's lubrication system.

[0064] Step S50: If the second oil pressure data is greater than the preset oil pressure threshold, then output the preset first reminder information, which is used to remind the user that the lubrication fault of the standby machine has been eliminated.

[0065] Optionally, in the standby calender scenario, this refers to a standardized reminder message pre-set in the HMI-PLC control unit, automatically output when the system detects that the standby machine's lubrication status has returned to normal. Its core function is to clearly inform the user that the standby machine's lubrication fault has been resolved and it can be switched to operating status at any time. Optionally, the specific form of the preset first reminder message needs to be designed in conjunction with the hardware module: Firstly, a visual reminder, displaying fixed text on the HMI (Human Machine Interface), such as "Standby machine lubrication fault resolved, current lubrication status normal, can be started at any time," using black 14-point Song typeface with a light gray background to ensure visual clarity; secondly, an auditory reminder, triggering an audible and visual alarm to output a short 1Hz tone, lasting 0.5 seconds each time, for a total of 3 triggers, to prevent a single reminder from being ignored.

[0066] Optionally, the alert message settings must match the detection logic—outputting only when the second oil pressure data collected by the pressure sensor exceeds the preset oil pressure threshold, ensuring the accuracy of the alert. Simultaneously, the message content directly points to "troubleshooting" and "standby unit availability," eliminating the need for secondary user judgment and resolving the "slow status confirmation" problem in traditional manual checks. Therefore, in terms of fault detection rate, traditional methods have a low detection rate, while this solution achieves an extremely high level. Regarding response time, traditional methods rely on manual inspections, which are time-consuming, while this solution can automatically trigger responses, with extremely short response times. As for the risk of misoperation, traditional methods are riskier due to reliance on human experience, while this solution operates fully automatically with no risk of misoperation. Regarding the rate of accidental bearing damage, traditional methods have a high annual damage rate, while this solution has an extremely low annual damage rate, further ensuring rapid standby unit response and switching requirements, and reducing the risk of startup delays due to unclear status.

[0067] In this embodiment, when a standby lubrication detection command is detected, the corresponding oil pump is started to supply oil to the lubrication pipeline, laying the foundation for oil pressure data acquisition. The pressure sensor collects and judges the first oil pressure to achieve initial state screening of the lubrication system. If the first oil pressure is not up to standard, the oil pump is controlled to increase the oil pressure in the pipeline, providing a basis for fault stratification judgment and avoiding shutdown due to misjudgment of serious faults caused by initial low pressure. The second oil pressure after pressurization is collected and judged to provide a basis for subsequent reminders or shutdown protection. If the second oil pressure meets the standard, an reminder is output to clarify that the abnormality has been eliminated by pressurization, thereby improving the accuracy of lubrication detection and avoiding bearing damage when the standby machine is started.

[0068] Furthermore, based on the first embodiment of this application described above, a second embodiment of the standby machine lubrication detection method of this application is proposed. In this embodiment, the standby machine lubrication detection system includes a human-machine interface and a clock. Before step S10 described above, the method includes:

[0069] Step B60: When a user-triggered detection operation on the standby machine is detected based on the human-machine interface, a lubrication detection command corresponding to the detection operation is generated.

[0070] Step B70, or, when the clock count result is detected to be consistent with the preset target count value, a lubrication detection command is generated.

[0071] Optionally, when a user-triggered backup machine detection operation is detected based on the human-machine interface, a lubrication detection command corresponding to the detection operation is generated; or, when the clock counting result is detected to be consistent with the preset target counting value, a lubrication detection command is generated, providing technical support for starting the lubrication detection process.

[0072] Optionally, the human-machine interface should have a clear operation entry point. For example, the interface should present a visual option (such as a button or touch icon) for "standby machine lubrication system detection" and support the user in selecting the target standby machine. If multiple standby machines exist, the interface should list the device code or name for selection. When the user triggers the option through clicks, touches, or other actions, the system will first verify the validity of the operation. If it is confirmed that the user has operating permissions and the target standby machine is currently in a non-operating idle state, the generated lubrication detection command should include the following core information: First, the target identifier, i.e., the unique code of the standby machine being tested (such as "standby machine-001"), to ensure that the command accurately points to the corresponding device; second, the detection parameters, which clearly define the detection dimensions and standards of the lubrication system, such as the oil pressure data acquisition frequency (such as 1 time / second) and the initial oil pressure judgment threshold (such as 8-12 MPa). a) The pressurization time after the oil pump starts (e.g., 30 seconds); thirdly, the trigger attribute, indicating that the instruction source is "user HMI manual trigger", which facilitates the subsequent system recording of the initiation scenario of the test task. This achieves two goals: firstly, "on-demand testing" through intuitive HMI interaction. When the user finds abnormal signs in the standby machine (such as slight abnormal noise or fluctuations in past lubrication data), the test can be started immediately, avoiding delays in troubleshooting due to waiting for fixed-cycle testing and reducing the risk of bearing damage due to insufficient lubrication in the standby machine; secondly, the visual operation lowers the usage threshold. Operators do not need to master professional system instructions and can complete the triggering through conventional human-machine interaction, improving on-site maintenance efficiency. At the same time, the trigger attribute and equipment code in the instruction can ensure that the test data is accurately associated with the specific scenario and equipment, which is convenient for subsequent fault tracing and maintenance record archiving.

[0073] Optionally, the HMI interface design includes: a main screen and a parameter setting page; the main screen displays a "real-time pressure curve," with the horizontal axis representing time (e.g., dynamically displaying the last 10 minutes) and the vertical axis representing pressure value (unit: MPa), plotting the real-time trend of oil pressure data changes; it also sets "lubrication status indicator lights," with green indicating "normal lubrication," yellow indicating "secondary alarm triggered (pressurization in progress)," and red indicating "primary shutdown alarm triggered (severe pressure deficiency)," with text status displayed simultaneously next to the indicator lights; the parameter setting page includes: a "pressure threshold" input field (supporting modification of the pressure change rate judgment threshold, such as 0.5MPa in the example, with the unit "MPa"); a "temperature compensation coefficient" input field (used to set the temperature compensation parameter for the dynamic oil pressure algorithm, such as 0.02MPa / ℃ in the example, with the unit "MPa / ℃"); and a "detection cycle" setting field, supporting selection or input of the lubrication detection trigger interval, such as detection every 30 minutes, providing interactive options and text descriptions.

[0074] Optionally, when the clock count matches the preset target count value, a lubrication detection command is generated. It should be noted that the standby lubrication detection system needs a built-in clock counting module. The counting unit (e.g., in "hours") and the preset target count value must be clearly defined (this value needs to be set in conjunction with the maintenance cycle of the standby lubrication system; for example, if daily testing is required, the target count value is set to 24; if testing is required every 12 hours, the target count value is set to 12). When the real-time cumulative clock count reaches the preset value, the system automatically triggers command generation. This command, in addition to the aforementioned target standby machine code and oil pressure detection parameters, also needs to include a timing indicator (e.g., "24-hour cycle timed trigger") and a count reset command (automatically clearing the clock count after reaching the target and starting the next cycle count) to ensure the continuity of the timed detection. The automation of preventative maintenance offers several advantages: First, it allows for the monitoring of the lubrication system at fixed intervals without manual intervention, preventing missed inspections due to human error or oversight. This effectively prevents equipment damage caused by the long-term undetected nature of hidden faults (such as a slow drop in oil pressure due to minor leaks in the pipeline). Second, regular, timed inspections generate time-series curves of lubrication system operating data. By comparing inspection data from different periods (such as the initial oil pressure value and the stable oil pressure value after pressurization), the trend of system performance degradation can be predicted in advance (e.g., a gradual decrease in stable oil pressure may indicate a decline in oil pump efficiency), providing data support for predictive maintenance. Third, the automatic clock reset function ensures the accuracy of timed triggering, avoiding confusion in inspection time due to counting deviations, guaranteeing the reliable execution of maintenance plans, and further improving the operational stability of the standby lubrication system.

[0075] In this embodiment, when a user-triggered standby machine detection operation is detected based on the human-machine interface, a lubrication detection command corresponding to the detection operation is generated, thereby completing the start detection operation through conventional human-machine interaction; or, when the clock count result is detected to be consistent with the preset target count value, a lubrication detection command is generated, thereby ensuring the accuracy of the timed triggering of the start detection operation and further improving the operational stability of the standby machine lubrication system.

[0076] Furthermore, based on any of the above embodiments, a third embodiment of the standby machine lubrication detection method of this application is proposed. In this embodiment, the standby machine lubrication detection system includes a temperature sensor, and the step of acquiring the first oil pressure data of the lubrication pipeline in real time through a pressure sensor includes:

[0077] Step B201: During the preset first time period of oil pump operation, the first oil pressure data is collected in real time by the pressure sensor at a preset first sampling frequency;

[0078] Optionally, during a preset first time period of oil pump operation, the first oil pressure data is collected in real time by a pressure sensor at a preset first sampling frequency, providing a continuous and accurate oil pressure data source for subsequent judgment on whether the first oil pressure meets the standard, providing a basis for fault diagnosis, and further ensuring the reliability of standby machine lubrication detection.

[0079] Optionally, the specific value of the first time period can be preset based on the normal cycle of oil pressure transitioning from the initial value to a preliminary stable state after the oil pump starts. This can cover the key stages of dynamic oil pressure changes. The first sampling frequency can be preset, such as 2 times / second, so that 40 sets of first oil pressure data can be collected within 20 seconds. This can not only capture the details of oil pressure fluctuations completely, but also avoid data redundancy. Optionally, a piezoelectric pressure sensor with an accuracy of ±0.02MPa can be used and installed 30cm from the oil pump outlet in the lubrication pipeline to ensure that the collected data can accurately reflect the oil pump output pressure.

[0080] Optionally, during the data acquisition process, the timestamp of the first set of oil pressure data for each group needs to be recorded synchronously (accurate to the millisecond level), and the data is transmitted to the control module for temporary storage in real time.

[0081] Optionally, step B201 is followed by steps B202-B204. Specifically, in step B202, the first oil pressure data is converted into digital pressure values, and the digital pressure values ​​are stored in chronological order.

[0082] Optionally, converting the first oil pressure data into digital pressure values ​​can eliminate errors caused by signal interference. Storing the digital pressure values ​​in chronological order provides technical support for tracing oil pressure changes at any time period, further ensuring the reliable operation of the standby lubrication detection system.

[0083] Optionally, the first oil pressure data collected by the pressure sensor is an analog signal, such as a 4-20mA current signal. This analog signal is converted into a digital pressure value by an analog-to-digital converter (ADC). The conversion process requires clearly defined accuracy parameters, such as a 16-bit resolution ADC with a conversion error ≤ ±0.1%, ensuring the digital pressure value accurately reflects the actual oil pressure. For example, a 12mA current signal can be converted into a 6MPa digital pressure value. The storage stage requires defining the storage medium, such as using a non-transitory computer-readable storage medium like EEPROM, or a local database integrated into the system. During storage, each set of digital pressure values ​​must be associated with its corresponding acquisition timestamp, accurate to the second, such as "2024-05-20 14:30:01". An index is created according to the chronological order, such as using timestamp increments. The system uses a sequentially linked list structure, and the storage capacity and data retention strategy must be specified. For example, a single data set occupies 8 bytes of storage space, supporting the storage of nearly 3 months of historical data. Once the capacity is exceeded, the oldest data is overwritten according to the "first-in, first-out" principle. This ensures that the analog signal to digital pressure value conversion can eliminate errors caused by signal interference. The high-precision conversion of the 16-bit ADC can guarantee the accuracy of subsequent oil pressure judgments and avoid misjudgments caused by analog signal fluctuations. The data is stored in chronological order and associated with timestamps, making it easy to trace oil pressure changes at any time period and providing data support for fault diagnosis and trend analysis. A clear storage medium and data retention strategy can ensure long-term stable data storage without occupying excessive storage space, balancing data availability and system operating efficiency, and further ensuring the reliable operation of the standby lubrication detection system.

[0084] Step B203: Select the initial pressure value at the moment the oil pump starts and the termination pressure value after the preset first time period of operation from the stored digital pressure values, and calculate the pressure change rate based on the initial pressure and termination pressure values.

[0085] Optionally, the initial pressure value at the moment the oil pump starts and the termination pressure value after the preset first time period are selected from the stored digital pressure values. The pressure change rate is calculated based on the initial pressure and termination pressure values, providing a quantitative basis for judging whether the lubrication system needs to start pressurization or alarm, and further improving the accuracy and reliability of detection.

[0086] Optionally, from the stored digital pressure values, the initial pressure value P0 at the moment the oil pump starts and the final pressure value P1 after a preset first time period Δt are selected, and the pressure change rate is calculated using the formula ΔP / Δt=(P1-P0) / Δt; where the oil pump start-up moment is determined by the triggering of the oil pump power supply signal, and the corresponding first stored digital pressure value is P0, for example, P0=4.2MPa; the preset first time period specifies the exact duration, such as Δt=25 seconds, and the corresponding stored digital pressure value at that time point is P1, for example, P1=7.8MPa; the values ​​are then... Substituting into the above formula, we get ΔP / Δt=(257.8-4.2) / 25=0.144MPa / sec. The calculation is performed by the processor of the system control module, and the result is stored in association with P0, P1 and Δt. By accurately selecting key pressure values ​​and a clear formula, we can focus on the oil pressure rise trend during the oil pump start-up phase and avoid data deviation. Among them, the pressure change rate can intuitively reflect the oil pump supply efficiency and pipeline unobstructedness, providing a quantitative basis for judging the lubrication system status, improving the accuracy and reliability of detection, and the associated stored data also facilitates subsequent fault tracing and system optimization.

[0087] Step B204: Obtain the current ambient temperature of the standby unit through a temperature sensor, and calculate the dynamic oil pressure compliance threshold by combining it with a preset dynamic pressure threshold algorithm.

[0088] Optionally, the current ambient temperature of the standby unit can be obtained through a temperature sensor, and combined with a preset dynamic pressure threshold algorithm, a dynamic oil pressure compliance threshold can be calculated to provide a standard adapted to the current environment for subsequent oil pressure judgment, thereby improving the adaptability and accuracy of lubrication detection.

[0089] Optionally, the dynamic oil pressure compliance threshold is obtained through a dynamic pressure threshold algorithm formula, which is: Dynamic oil pressure compliance threshold = Basic threshold (0.5MPa) + Temperature compensation coefficient × (Ambient temperature - 25℃). The temperature compensation coefficient is used to quantify the impact of ambient temperature changes on the dynamic oil pressure compliance threshold. During the prototype testing phase of the standby unit, different ambient temperature conditions are simulated, and operating data of the lubrication system at various temperatures are collected, including oil pressure, oil flow rate, and wear of lubricated parts. Through multiple rounds of actual testing and optimization, the most suitable temperature compensation coefficient for the standby unit's lubrication system is finally determined. In this embodiment, the temperature compensation coefficient is defined as 0.02MPa / ℃. Since temperature changes cause changes in oil viscosity, which in turn affects the oil pressure required for lubrication, the dynamic pressure threshold algorithm formula can dynamically adjust the compliance oil pressure according to temperature to address the problem of oil viscosity changing with temperature.

[0090] Optionally, substituting the current ambient temperature of the bearing, T = 30℃, into the formula, the dynamic oil pressure compliance threshold can be calculated as 0.5 + 0.02 × (30 - 25) = 0.6 MPa. The calculation process is executed by the processor within the system, and the calculation results, along with the current ambient temperature, formula parameters, and other information, are stored in a non-transitory computer-readable storage medium for subsequent retrieval and analysis. This ensures that the collected current ambient temperature accurately reflects the actual working environment of the lubrication system, providing a reliable data foundation for subsequent threshold calculations. The preset dynamic pressure threshold algorithm establishes a quantitative correlation between temperature and oil pressure thresholds, breaking the limitation of traditional fixed thresholds that cannot adapt to changes in ambient temperature. It can dynamically adjust the oil pressure compliance standard according to the changes in oil viscosity at different temperatures, ensuring lubrication effectiveness. Moreover, the dynamic oil pressure compliance threshold provides a standard adapted to the current environment for subsequent oil pressure judgment, improving the adaptability and accuracy of lubrication detection. The associated stored data also facilitates subsequent algorithm optimization and fault tracing.

[0091] Optionally, the bearing temperature T is first "temperature judgment": if T < minimum temperature threshold Tmin, the minimum frequency Fmin is directly output; if Tmin ≤ T ≤ maximum temperature threshold Tmax, the coefficient K is calculated (K = (T - Tmin) / (Tmax - Tmin)), and after limiting K to 0.0~1.0, the base frequency Freq is calculated (formula: Freq = Fmin + K × (Fmax - Fmin)); if T > Tmax + 5, the maximum frequency Fmax is directly output; then, the base frequency Freq is "efficiency compensation": the efficiency compensation factor η is calculated (formula: η = 0.7 + 0.3 × (1 - cumulative operating hours of oil pump / design life)), and the final frequency is... The calculation formula is Ffinal=Fmin+η×K×(Fmax-Fmin); where η (efficiency compensation factor): takes a value of 0.7~1.0, and dynamically adjusts the aggressiveness of the control strategy according to the degree of equipment wear (the proportion of operating hours to the design life); 0.7: basic efficiency coefficient, the bottom line of the conservative strategy adopted when the equipment reaches the design life; 0.3: efficiency adjustment weight, which determines the maximum adjustable range of η; operating hours: the cumulative time (hours) that the oil pump has worked, reflecting the wear of the equipment; design life: the expected service life of the oil pump (hours, such as 20,000 hours); (1-operating hours / design life): the proportion of the remaining life of the equipment, which is 1 when the equipment is new and 0 when it is fully aged.

[0092] Optionally, the dynamic oil pressure compliance threshold can be used as the preset oil pressure compliance threshold, and it can be determined whether the pressure change rate is greater than the preset oil pressure compliance threshold.

[0093] Optionally, using the dynamic oil pressure compliance threshold as the preset oil pressure compliance threshold allows the judgment standard to be adapted to the oil viscosity characteristics at the current ambient temperature, avoiding judgment deviations caused by environmental changes due to traditional fixed preset thresholds, and determining whether the pressure change rate is greater than the preset oil pressure compliance threshold, thus providing a direct basis for whether the subsequent lubrication system needs to be started, adjusted, or alarmed.

[0094] Optionally, the judgment process is executed by the processor of the system control module. The processor retrieves the stored preset oil pressure compliance threshold and pressure change rate data, and compares the values ​​using built-in comparison logic (such as greater than or equal to judgment logic). For example, it compares 0.144 MPa / s with 0.6 MPa to determine that the pressure change rate is not greater than the preset oil pressure compliance threshold. At the same time, the judgment result and the two values ​​compared are associated and stored in a non-transient computer-readable storage medium, which facilitates subsequent retrieval and fault tracing. Using the dynamic oil pressure compliance threshold directly as the preset oil pressure compliance threshold allows the judgment standard to adapt to the oil viscosity characteristics at the current ambient temperature, avoiding judgment deviations caused by environmental changes due to traditional fixed preset thresholds. The automatic execution of the judgment by the processor reduces errors caused by manual intervention and improves judgment efficiency. The associated storage of the judgment result and related data provides a direct basis for subsequent lubrication system status assessment, further ensuring the reliability and stability of the standby lubrication system.

[0095] In this embodiment, during a preset first time period of oil pump operation, a pressure sensor collects first oil pressure data in real time at a preset first sampling frequency, providing a continuous and accurate oil pressure data source. The first oil pressure data is converted into digital pressure values, which are stored in chronological order to provide data support for fault diagnosis and trend analysis of oil pressure changes. From the stored digital pressure values, the initial pressure value at the moment of oil pump startup and the termination pressure value after the preset first time period of operation are selected, and the pressure change rate is calculated based on the initial and termination pressure values, providing a quantitative basis for determining whether the lubrication system needs to be boosted or alarmed. The current ambient temperature of the standby unit is obtained through a temperature sensor, and a preset dynamic pressure threshold algorithm is used to calculate the dynamic oil pressure compliance threshold. The dynamic oil pressure compliance threshold is used as the preset oil pressure compliance threshold, and it is determined whether the pressure change rate is greater than the preset oil pressure compliance threshold, providing a standard adapted to the current environment for subsequent oil pressure judgment.

[0096] Furthermore, based on the above embodiments, a fourth embodiment of the standby machine lubrication detection method of this application is proposed. In this embodiment, step S30 includes:

[0097] Step B301: If the pressure change rate is less than or equal to the dynamic oil pressure threshold, a preset level 2 alarm command is triggered.

[0098] Step B302: Based on the preset level 2 alarm command, control the motor drive parameters of the oil pump to switch from the reference parameter group to the preset boosting parameter group;

[0099] Step B303: During the preset second time period, control the oil pump to continuously supply oil to the lubrication pipeline using a preset boosting parameter set as the motor drive parameter.

[0100] Optionally, based on the preceding judgment steps, such as if the pressure change rate is 0.144 MPa / second and the dynamic oil pressure threshold is 0.6 MPa, and the pressure change rate is determined not to be greater than the threshold, a preset secondary alarm command is triggered. This preset secondary alarm command is generated by the system control module and transmitted to the oil pump's motor controller via the internal communication bus. The baseline parameter set is defined as the motor drive parameters during normal oil pump operation, such as a motor speed of 1500 r / min and a drive current of 8 A. The preset booster parameter set is defined as a pre-set set of motor drive parameters used to improve the oil pump's oil supply capacity in order to address insufficient oil pressure rise in the lubrication system. Parameter values ​​must be determined in conjunction with the oil pump's hardware specifications and the lubrication system's load-bearing capacity. The core parameters include two key parameters: motor speed and drive current. In some scenarios, voltage parameters can be added. This can directly increase the oil pump's suction and discharge volume per unit time, thereby improving... The oil pressure in the riser pipeline is such that the motor speed is 2000 r / min and the drive current is 12A (Ampere). The parameter switching is executed by the motor controller, and the switching response time is ≤0.5 seconds. The preset second time period refers to the fixed duration for which the oil pump continuously supplies oil to the lubrication pipeline at the booster parameter group after the preset level 2 alarm command is triggered and the control oil pump motor drive parameters are switched to the booster parameter group. The setting needs to be determined in combination with the specific conditions of the pipeline volume of the standby lubrication system, the booster capacity of the oil pump, and the oil flow characteristics. In this embodiment, the preset second time period is specified as 20 seconds. During this period, the motor controller continuously outputs the booster parameter group signal to control the oil pump to maintain a speed of 2000 r / min to supply oil to the lubrication pipeline. At the same time, the pressure sensor collects the oil pressure in real time at a preset second sampling frequency (e.g., 3 times / second), and the collected data is synchronously transmitted back to the control module for storage.

[0101] Optionally, the core purpose of presetting the second time period is not only to "boost pressure", but also to provide the lubrication system with a sufficient oil pressure adjustment cycle through continuous boosting for a fixed duration: on the one hand, to avoid stopping boosting before the oil pressure reaches the target value (such as the dynamic oil pressure threshold) due to the boosting time being too short, thus failing to solve the problem of insufficient lubrication; on the other hand, to prevent the oil pressure from being too high due to the boosting time being too long, thereby increasing the risk of pipeline leakage and oil pump overload.

[0102] Optionally, within a preset second time period, the oil pressure change trend can be continuously monitored in conjunction with real-time sampling by the pressure sensor (such as the aforementioned sampling frequency of 3 times / second) to determine whether the pressurization measures are effective. If the oil pressure rises to the dynamic oil pressure threshold within 30 seconds, the system can switch back to the baseline parameter group. If the threshold is not met, further adjustments can be triggered, such as extending the pressurization time or activating a higher-level alarm, forming a closed-loop control of "pressurization-monitoring-feedback" to ensure that the lubrication system can effectively increase the oil pressure when the oil pressure is insufficient, while avoiding the safety hazards caused by excessive pressurization.

[0103] Optionally, triggering a preset secondary alarm command refers to an instruction generated and issued by the control module when the system determines that the pressure change rate is less than or equal to the dynamic oil pressure threshold. This instruction is used to indicate that the lubrication system has insufficient oil pressure rise and that pressure adjustment needs to be initiated. First, the command generation must be based on the results of the preceding judgment. For example, if the pressure change rate is 0.144 MPa / second ≤ the dynamic oil pressure threshold of 0.6 MPa, the control module, after confirming that the triggering conditions are met through its built-in logic circuit, immediately generates a secondary alarm command. The command includes a trigger reason code, such as "02" representing insufficient oil pressure rise, the target execution module identifier (e.g., the oil pump motor controller ID), and the command priority (e.g., set to medium, higher than the normal operation command but lower than the emergency stop command). Second, the command transmission is achieved through the system's internal communication link, with a transmission rate set to 115200 bps, ensuring that the command reaches the oil pump motor controller within 0.3 seconds. Simultaneously, the command information is sent to the interaction layer, such as the HMI (Human-Machine Interface). The system displays a "Level 2 Alarm: Insufficient oil pressure rise. Activate booster and remote monitoring terminal to allow users to know the system status in real time." Furthermore, after the Level 2 alarm command is triggered, subsequent unrelated operations must be locked, such as prohibiting manual switching to non-booster parameter groups, until the booster adjustment is completed or the user confirms the action, to avoid interference with command execution. It should be noted that the core functions of this command are: first, to accurately transmit fault warning information, clearly identifying the problem type through coding and interface prompts, distinguishing it from other alarms, such as Level 1 alarms corresponding to pipeline blockage and Level 3 alarms corresponding to oil pump overload, facilitating quick fault location by the user; second, to trigger linked adjustment actions, directly instructing the motor controller to switch parameter groups, achieving automated "warning-handling" connection and reducing manual response delays; and third, to ensure operational safety, ensuring that booster adjustments are executed first through command priority settings and operation locking, avoiding system malfunctions caused by multiple command conflicts, and further improving the timeliness and reliability of the standby lubrication system in responding to abnormal oil pressure.

[0104] like Figure 3 As shown, Figure 3This is a multi-module interactive signaling diagram for lubrication detection involved in this application, involving HMI (Human-Machine Interface), PLC (Programmable Logic Controller), Sensor, Pump, and Alarm module. Commands or data are transmitted between modules via arrows; where "alt" indicates a branch decision path; 10s is the initial start-up and continuous operation duration of the oil pump, 20s is the continuous operation duration in the oil pump boost mode, 0.5MPa is the set threshold for the pressure change rate, ΔP is the pressure change (the difference between the termination pressure value and the initial pressure value), and Δt... The time interval for pressure changes (corresponding to the preset first time interval); Specific process: The HMI sends a "lubrication detection" command to the PLC (arrow points from HMI to PLC); the PLC sends a "start oil pump (10s)" command to the pump (arrow points from PLC to Pump, 10s is the initial running time of the oil pump to collect oil pressure); after the sensor collects the real-time oil pressure, it sends "real-time oil pressure data" back to the PLC (arrow points from Sensor to PLC); the PLC calculates the pressure change rate ΔP / Δt based on the oil pressure data (ΔP is the pressure change amount, Δt is the time interval). The initial branch judgment is indicated by "alt" (Alternative): If ΔP / Δt ≥ 0.5MPa (set threshold), the PLC transmits a signal to the HMI, causing the HMI to display "Normal Lubrication" (arrow points from PLC to HMI); if ΔP / Δt < 0.5MPa, the PLC sends a "Trigger Secondary Alarm" command to the Alarm (arrow points from PLC to Alarm), and simultaneously sends a "Boost Mode Operation (20s)" command to the Pump (arrow points from PLC to Pump, 20s is the duration for the oil pump to boost pressure and attempt to increase pressure). Then, the sensor collects the oil pressure again and sends a "secondary oil pressure test" signal back to the PLC (arrow points from the sensor to the PLC); during the secondary judgment, the branch is marked with "alt": if the pressure meets the standard, the PLC transmits a signal to the HMI to display "fault has been eliminated" (arrow points from the PLC to the HMI); if the pressure is still insufficient, the PLC sends a "trigger first-level shutdown alarm" command to the Alarm (arrow points from the PLC to the Alarm), thus realizing the lubrication detection process from command issuance, time-limited oil pump control, data acquisition, calculation and judgment including ΔP / Δt to graded alarm.

[0105] Optionally, the standby equipment system of the German Flyway KWMS2-3200 calender is used as an example;

[0106] Hardware installation: Install a pressure sensor at the tee of the main lubrication line. The sensor range is set to 0-10MPa and is used to collect oil pressure data in the pipeline in real time.

[0107] PLC programming (key parameters and logic):

[0108] / / Lubrication testing procedure snippet

[0109] IF "Start_Test" THEN / / "Start_Test" is the lubrication detection trigger signal (e.g., generated by the user clicking "Start Detection" via the HMI).

[0110] Pump_Speed:=60Hz; / / Set the initial operating frequency of the oil pump to 60Hz (corresponding to the initial oil supply state) RUN_TIMER(T1,10s); / / Start timer T1, set the first stage detection duration to 10s (i.e., the oil pump runs at 60Hz for 10s)

[0111] IFPressure < 0.5MPa THEN / / If the oil pressure collected by the pressure sensor during the 10s detection period is < 0.5MPa (indicating insufficient oil pressure).

[0112] Pump_Speed:=80Hz; / / Switch the oil pump to boost mode, increasing the operating frequency to 80Hz. RUN_TIMER(T2,20s); / / Start timer T2, setting the continuous running time of boost mode to 20s. IFPressure<0.5MPaTHEN / / If the oil pressure is still <0.5MPa after 20s of boost (the pressure is considered insufficient).

[0113] ALARM_LEVEL := 1; / / Trigger Level 1 alarm (ALARM_LEVEL = 1 corresponds to Level 1 alarm level)

[0114] LOCK_MACHINE; / / Executes the device boot lock command (prevents standby device from booting).

[0115] END_IF;

[0116] END_IF;

[0117] END_IF;

[0118] The PLC program logic revolves around "detection - pressurization - re-judgment - alarm / lock". The key parameters (60Hz / 80Hz oil pump frequency, 10s / 20s duration, 0.5MPa pressure judgment value) are all adapted to the lubrication requirements of the standby system of the calender.

[0119] In this embodiment, if the pressure change rate is less than or equal to the dynamic oil pressure threshold, a preset secondary alarm command is triggered, which can promptly identify potential problems such as insufficient oil pressure rise in the lubrication system. Based on the secondary alarm command, the motor drive parameters of the oil pump are switched from the reference parameter group to the preset boosting parameter group. During the preset second time period, the oil pump is controlled to continuously supply oil to the lubrication pipeline with the preset boosting parameter group as the motor drive parameters, so that the oil pump can quickly improve the oil supply capacity, thereby solving the equipment start-up risk caused by lubrication failure and ensuring the reliability and stability of the standby lubrication system.

[0120] Furthermore, based on the above embodiments, a fifth embodiment of the standby machine lubrication detection method of this application is proposed. In this embodiment, the standby machine lubrication detection method further includes:

[0121] Step D90: Store the detection data of the standby machine lubrication detection system in real time to the storage file during the standby machine lubrication detection process. All detection data includes at least the detection data collected by the pressure sensor and the temperature sensor.

[0122] Optionally, the detection data of the standby machine lubrication detection system during the standby machine lubrication detection process can be stored in real time to a storage file. All detection data includes at least the detection data collected by the pressure sensor and temperature sensor. Real-time storage to the cloud platform breaks through the capacity limitations of local storage.

[0123] Optionally, the data collected by the pressure sensor includes first oil pressure data (such as oil pressure collected at a frequency of 1 time / second within a preset first time period of 25 seconds, example values ​​4.2MPa, 5.1MPa…7.8MPa), second oil pressure data (such as oil pressure collected at the end of a preset second time period of 30 seconds, example values ​​0.5MPa or 0.7MPa), and pressure change rate (such as 0.144MPa / second). The data collected by the temperature sensor is the current ambient temperature 5cm outside the oil tank of the standby engine lubrication system. For example, 25℃); in addition, it is also necessary to include derived data, such as dynamic oil pressure threshold (e.g., 0.6MPa), switching records of oil pump motor reference parameter group (e.g., 1500r / min, 8A) and boost parameter group (e.g., 2000r / min, 12A), generation time (e.g., 2024-05-20 15:40:30) and status (e.g., "triggered", "not triggered"), and the values ​​of preset first time period and preset second time period (e.g., 25 seconds, 30 seconds).

[0124] Optionally, during the lubrication testing of the standby machine, the detection data from the standby machine lubrication testing system is stored in real time to the cloud platform data storage unit. The control module of the standby machine lubrication testing system establishes a stable connection with the cloud platform through a communication module (such as a 4G wireless communication module or an Ethernet module, using the MQTT (Message Queuing Telemetry Transport) protocol, with a transmission rate ≥1Mbps (Megabits per second) and a data transmission delay ≤1 second). The detection data is packaged in the format of "device number + acquisition timestamp + data type + data value" and sent in real time. The cloud platform data storage unit uses a distributed HBase (Hadoop-based database) database, and the storage medium supports RAID5 (Redundant Array of Independent Disks). 5. Independent disk redundant array (Level 5) redundancy backup non-transitory cloud storage media prevents data loss due to single-node failure. Data is indexed by "device number-test date-data type" during data storage, facilitating accurate querying by users via remote monitoring. Real-time storage to the cloud platform overcomes the capacity limitations of local storage. Users can retrieve historical test data at any time via remote monitoring to trace the long-term operation of the standby lubrication system. Complete retention of raw and derived data from pressure and temperature sensors provides sufficient data support for subsequent analysis of the correlation between oil pressure anomalies and ambient temperature, and optimization of temperature compensation coefficients. The RAID5 redundancy backup mechanism of the cloud platform avoids data loss due to local device failure, ensuring the security of test data. The structured index design significantly improves data query efficiency, reduces the time cost for users to obtain target data, and further enhances the scalability and data traceability of the standby lubrication test system, laying the foundation for long-term system maintenance and performance optimization.

[0125] Step D100: The detection data stored in the storage file is used to generate the intelligent operation and maintenance results of the lubrication system of the standby machine. The intelligent operation and maintenance results of the lubrication system include at least one of the following: lubrication health trend curve, lubrication operation report and lubrication maintenance recommendations.

[0126] Optionally, the detection data stored in the storage file is used to generate the intelligent operation and maintenance results of the standby machine's lubrication system. The detection data stored in the storage file includes the first oil pressure data and the second oil pressure data collected by the pressure sensor, the ambient temperature outside the oil tank of the standby machine's lubrication system collected by the temperature sensor, and derived data. These data are read and processed by the system's data analysis module (such as integrating linear regression trend fitting algorithm and multi-dimensional statistical analysis algorithm). The generated intelligent operation and maintenance results of the lubrication system include at least one of the following: lubrication health trend curve, lubrication operation report, and lubrication maintenance recommendations.

[0127] Optionally, when generating the lubrication health trend curve, the data analysis module first filters the data according to a preset time dimension (e.g., weekly, with the time range set to "2024-05-20 08:00-2024-05-27 08:00"). The horizontal axis is defined as the detection time, accurate to the hour, and the vertical axis is defined as the key parameter values ​​(e.g., oil pressure in MPa, temperature in °C). The arithmetic mean of the oil pressure data for each hour is taken as a data point (e.g., 24 data points per day). The curve of oil pressure and temperature change over time is fitted by a linear regression algorithm. The curve needs to be marked with a dynamic oil pressure compliance threshold line (e.g., a red horizontal solid line based on 0.6 MPa). If the average oil pressure is 0.5 MPa below the threshold during a certain period (e.g., 2024-05-22 10:00-11:00), the abnormal interval is marked with a yellow shading, and an alarm record is associated next to the interval ("2024-05-22 10:15 triggered a level 2 alarm, and the oil pump switched to the boost parameter group").

[0128] Optionally, when generating a lubrication operation report (e.g., with a preset cycle of weekly), the report includes four parts: First, basic information (e.g., standby machine number BYJ-001, reporting period from 2024-05-20 to 2024-05-27, total testing time 168 hours); second, key data statistics (e.g., in tabular form, the table parameters include "average oil pressure: 7.2MPa, which is the arithmetic mean of all oil pressure data within the reporting period; highest ambient temperature 37℃, occurring at 14:00 on 2024-05-25; alarm trigger times 2, both level 2 alarms"); third, anomaly analysis (e.g., "oil pressure was below the threshold from 10:00 to 11:00 on May 22, combined with the normal temperature of 28℃ during the same period, it is speculated that there was a slight blockage in the lubrication pipeline"); and fourth, data comparison (compared to the previous reporting period, the average oil pressure decreased by 0.3MPa, and the slow downward trend of oil pressure needs to be monitored).

[0129] Optionally, when generating lubrication maintenance recommendations, the data analysis module compares the current cycle data with historical normal data (e.g., oil pressure fluctuation range of 4.2-7.8 MPa and temperature fluctuation range of 20-32℃ during the past 3 months without alarms). If the current cycle oil pressure fluctuation amplitude of 2.1 MPa (e.g., maximum 7.8 MPa, minimum 5.7 MPa) is detected to be greater than the normal range (e.g., ≤1.7 MPa) by 15%, then the module generates a recommendation to "check whether there is any blockage in the lubrication pipeline and complete the pipeline cleaning within 5 working days to avoid blockage." "Intensified blockage leads to further drop in oil pressure"; if the average ambient temperature for three consecutive days (e.g., from May 23 to 25, 2024) is 36℃, which is higher than the historical normal temperature limit of 32℃, then "It is recommended to strengthen the ventilation of the standby machine room (e.g., turn on the cooling fan) to avoid excessive reduction in oil viscosity affecting the lubrication effect. After the ventilation is adjusted, the oil pressure change needs to be continuously monitored." Each recommendation must be marked with the specific data on which it is based (e.g., the temperature recommendation is based on "temperature data from May 23 to 25, 2024: 36℃, 37℃, 35.5℃").

[0130] In this embodiment, the lubrication health trend curve is visualized, allowing users to intuitively grasp the long-term operating trend of the lubrication system, identify potential problems such as oil pressure drop and abnormal temperature rise in advance, and avoid sudden failures. The lubrication operation report presents key data and anomalies in a structured manner, reducing the time cost of manual statistics and analysis for users. The lubrication maintenance suggestions are generated based on actual test data, rather than general suggestions, which can provide targeted guidance for users to carry out maintenance, avoid resource waste caused by blind operation and maintenance, extend the service life of lubrication pipelines, oil pumps and other components, reduce the risk of difficulty in detecting lubrication anomalies when the standby machine is shut down independently, which may lead to easy damage to bearings when the standby machine is started, and further improve the operation and maintenance efficiency and reliability of the standby machine lubrication system.

[0131] In this embodiment, by storing the detection data of the standby machine lubrication detection system to a storage file in real time during the standby machine lubrication detection process, users can retrieve historical detection data at any time; the detection data stored in the storage file is used to generate intelligent operation and maintenance results of the standby machine lubrication system, reducing the risk that lubrication abnormalities are difficult to detect when the standby machine is independently shut down, which may lead to easy damage to the bearings when the standby machine is started, and further improving the operation and maintenance efficiency and reliability of the standby machine lubrication system.

[0132] This application also provides a standby machine lubrication detection system; please refer to... Figure 4 , Figure 4 This is a schematic diagram of the standby machine lubrication detection system of this application. The standby machine lubrication detection system includes a standby machine, an oil pump, lubrication pipelines, and a pressure sensor. The standby machine is connected to the oil pump, lubrication pipelines, and pressure sensor. The standby machine includes:

[0133] The component control module H01 is used to control the oil pump corresponding to the lubrication detection command to supply oil to the lubrication pipeline when the lubrication detection command of the standby machine is detected.

[0134] The data judgment module H02 is used to collect the first oil pressure data of the lubrication pipeline in real time through the pressure sensor and to determine whether the first oil pressure data is greater than the preset oil pressure threshold.

[0135] The component control module H03 is used to control the oil pump to supply oil to the lubrication pipeline in a preset boosting mode if the first oil pressure data is less than or equal to the preset oil pressure threshold.

[0136] The data judgment module H04 is used to collect the second oil pressure data of the lubrication pipeline in real time through the pressure sensor and to determine whether the second oil pressure data is greater than the preset oil pressure threshold.

[0137] The information output module H05 is used to output a preset first reminder message if the second oil pressure data is less than or equal to the preset oil pressure threshold. The preset first reminder message is used to remind that the lubrication fault of the standby machine has been eliminated.

[0138] The standby machine lubrication detection system provided in this application, employing the standby machine lubrication detection method described in the above embodiments, can solve the technical problem of difficulty in detecting lubrication abnormalities when the standby machine is independently shut down, leading to easy damage to bearings when the standby machine is started. Compared with the prior art, the beneficial effects of the standby machine lubrication detection system provided in this application are the same as those of the standby machine lubrication detection method provided in the above embodiments, and other technical features of the standby machine lubrication detection system are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0139] This application provides a standby machine (which can be a wind power device, such as a wind turbine or a control device for a motor inside a wind turbine), the standby machine including: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the standby machine lubrication detection method in the first embodiment described above.

[0140] The following is for reference. Figure 5The diagram illustrates a structural schematic of a standby device suitable for implementing embodiments of this application. The standby device in embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The standby machine shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0141] like Figure 5 As shown, the standby machine may include a processing system 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage system 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the standby machine. The processing system 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: an input system 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; an output system 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; a storage system 1003 including, for example, magnetic tape, hard disk, etc.; and a communication system 1009. Communication system 1009 allows the standby unit to communicate wirelessly or wiredly with other devices to exchange data. While the figure shows a standby unit with various systems, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0142] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication system, or installed from storage system 1003, or installed from ROM 1002. When the computer program is executed by processing system 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0143] The standby machine provided in this application, employing the standby machine lubrication detection method described in the above embodiments, can solve the technical problem that abnormal lubrication is difficult to detect when the standby machine is independently shut down, leading to easy damage to the bearings when the standby machine is started. Compared with the prior art, the beneficial effects of the standby machine provided in this application are the same as those of the standby machine lubrication detection method provided in the above embodiments, and other technical features of this standby machine are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0144] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0145] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0146] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the standby machine lubrication detection method in the above embodiments.

[0147] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0148] The aforementioned computer-readable storage medium may be included in the standby machine or may exist independently and not assembled into the standby machine.

[0149] The aforementioned computer-readable storage medium carries one or more programs that, when executed by a standby machine, cause the standby machine to:

[0150] When a lubrication test command is detected from the standby unit, the oil pump corresponding to the lubrication test command is controlled to supply oil to the lubrication pipeline;

[0151] The pressure sensor collects the first oil pressure data of the lubrication pipeline in real time and determines whether the first oil pressure data is greater than the preset oil pressure threshold.

[0152] If the first oil pressure data is less than or equal to the preset oil pressure threshold, the oil pump is controlled to supply oil to the lubrication pipeline in the preset boost mode.

[0153] The pressure sensor collects the second oil pressure data of the lubrication pipeline in real time and determines whether the second oil pressure data is greater than the preset oil pressure threshold.

[0154] If the second oil pressure data is less than or equal to the preset oil pressure threshold, a preset first reminder message is output, which is used to remind that the lubrication fault of the standby machine has been eliminated.

[0155] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0156] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0157] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0158] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-described standby machine lubrication detection method. This solves the technical problem that abnormal lubrication is difficult to detect when the standby machine is independently shut down, leading to easy damage to bearings when the standby machine is started. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the standby machine lubrication detection method provided in the above embodiments, and will not be repeated here.

[0159] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the standby machine lubrication detection method described above.

[0160] The computer program product provided in this application can solve the technical problem that abnormal lubrication is difficult to detect when the standby machine is independently shut down, which leads to easy damage to the bearings when the standby machine is started. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the standby machine lubrication detection method provided in the above embodiments, and will not be repeated here.

[0161] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A method for detecting lubrication in a standby machine, characterized in that, The standby unit lubrication detection method is applied to a standby unit lubrication detection system, which includes an oil pump, lubrication lines, and a pressure sensor for the standby unit. The standby unit lubrication detection method includes: When a lubrication detection command is detected from the standby unit, the oil pump corresponding to the lubrication detection command is controlled to supply oil to the lubrication pipeline; The pressure sensor collects the first oil pressure data of the lubrication pipeline in real time and determines whether the first oil pressure data is greater than the preset oil pressure threshold. If the first oil pressure data is less than or equal to the preset oil pressure threshold, the oil pump is controlled to supply oil to the lubrication pipeline in a preset boosting mode to boost the oil in the lubrication pipeline. The pressure sensor collects the second oil pressure data of the lubrication pipeline in the preset boost mode in real time, and determines whether the second oil pressure data is greater than the preset oil pressure threshold. If the second oil pressure data is greater than the preset oil pressure threshold, a preset first reminder message is output, wherein the preset first reminder message is used to remind the user that the lubrication fault of the standby machine has been resolved.

2. The standby machine lubrication detection method as described in claim 1, characterized in that, The standby machine lubrication detection system includes a human-machine interface and a clock. Before the step of controlling the oil pump corresponding to the lubrication detection command to supply oil to the lubrication pipeline, the system includes: When a user-triggered detection operation on the standby machine is detected based on the human-machine interface, a lubrication detection command corresponding to the detection operation is generated. Alternatively, when the clock count result is detected to be consistent with the preset target count value, the lubrication detection command is generated.

3. The standby machine lubrication detection method as described in claim 2, characterized in that, The standby lubrication detection system includes a temperature sensor, and the step of acquiring the first oil pressure data of the lubrication pipeline in real time through the pressure sensor includes: During a preset first time period of operation of the oil pump, the first oil pressure data is collected in real time by a pressure sensor at a preset first sampling frequency.

4. The standby machine lubrication detection method as described in claim 3, characterized in that, The preset oil pressure threshold includes a dynamic oil pressure threshold. After the step of acquiring the first oil pressure data in real time via a pressure sensor at a preset first sampling frequency, the method further includes: The first oil pressure data is converted into digital pressure values, and the digital pressure values ​​are stored in chronological order. From the stored digital pressure values, select the initial pressure value at the moment the oil pump starts and the termination pressure value after running for the preset first time period, and calculate the pressure change rate based on the initial pressure and the termination pressure value; The current ambient temperature of the standby unit is obtained through the temperature sensor, and the dynamic oil pressure compliance threshold is calculated based on the preset dynamic pressure threshold algorithm and the current ambient temperature.

5. The standby machine lubrication detection method as described in claim 4, characterized in that, The step of controlling the oil pump to supply oil to the lubrication pipeline in a preset boosting mode if the first oil pressure data is less than or equal to the preset oil pressure threshold includes: If the pressure change rate is less than or equal to the dynamic oil pressure threshold, a preset level 2 alarm command is triggered. Based on the preset level 2 alarm command, the motor drive parameters of the oil pump are controlled to switch from the reference parameter group to the preset boosting parameter group; During a preset second time period, the oil pump is controlled to continuously supply oil to the lubrication pipeline using the preset boosting parameter set as the motor drive parameters.

6. The standby machine lubrication detection method as described in claim 1, characterized in that, After the step of determining whether the second oil pressure data is greater than the preset oil pressure threshold, the method further includes: If the second oil pressure data is less than or equal to the preset oil pressure threshold, a preset first-level alarm command is triggered, and the startup permission of the standby machine is locked based on the preset first-level alarm command.

7. The standby machine lubrication detection method as described in any one of claims 1-6, characterized in that, The method further includes: The detection data of the standby machine lubrication detection system during the lubrication detection process of the standby machine is stored in real time to a storage file, wherein all detection data includes at least the detection data collected by the pressure sensor and the temperature sensor; The detection data stored in the storage file is used to generate the intelligent operation and maintenance results of the lubrication system of the standby machine, wherein the intelligent operation and maintenance results of the lubrication system include at least one of lubrication health trend curve, lubrication operation report and lubrication maintenance recommendations.

8. A standby machine lubrication detection system, characterized in that, The standby unit lubrication detection system includes a standby unit, an oil pump, lubrication lines, and a pressure sensor. The standby unit is connected to the oil pump, the lubrication lines, and the pressure sensor. The standby unit includes: The component control module is used to start and control the oil pump corresponding to the lubrication detection command to supply oil to the lubrication pipeline when a lubrication detection command is detected from the standby machine, wherein the lubrication detection command includes command information to start the oil pump; The data judgment module is used to collect the first oil pressure data of the lubrication pipeline in real time through the pressure sensor, and to determine whether the first oil pressure data is greater than the preset oil pressure threshold. The component control module is used to control the oil pump to supply oil to the lubrication pipeline in a preset boosting mode if the first oil pressure data is less than or equal to the preset oil pressure threshold. The data judgment module is used to collect the second oil pressure data of the lubrication pipeline in real time through the pressure sensor, and to determine whether the second oil pressure data is greater than the preset oil pressure threshold. The information output module is used to output a preset first reminder message if the second oil pressure data is less than or equal to the preset oil pressure threshold, wherein the preset first reminder message is used to remind the user that the lubrication fault of the standby machine has been eliminated.

9. A standby machine, characterized in that, The standby unit includes a processor, a memory, and a standby unit lubrication detection program stored in the memory that can be executed by the processor, wherein when the standby unit lubrication detection program is executed by the processor, it implements the steps of the standby unit lubrication detection method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores a standby machine lubrication detection program, wherein when the standby machine lubrication detection program is executed by a processor, it implements the steps of the standby machine lubrication detection method as described in any one of claims 1 to 7.

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