Remote monitoring system and method, electronic equipment and medium

Abstract

The invention discloses a remote monitoring system and method, electronic equipment and a medium, and belongs to the technical field of remote monitoring. The system comprises an equipment control module, a data acquisition module, an intelligent analysis module, an intelligent control module and a remote interaction module, the equipment control module is used for starting and closing the liquid ring vacuum pump; when the operation task exists, the liquid ring vacuum pump is started to pump gas in the pumped system, so that the pumped system reaches the target pressure intensity within the set time; the data acquisition module is used for acquiring parameter data and state data in the operation process of the liquid ring vacuum pump; the intelligent analysis module is used for calculating the real efficiency of the liquid ring vacuum pump during operation at the current moment; the intelligent control module is used for calculating the average power required to be adjusted in the next control process of the liquid ring vacuum pump and performing control adjustment at a remote end; and the remote interaction module is used for providing an interaction control platform and carrying out digital display.

Description

Technical Field

[0001] The present invention relates to the technical field of remote monitoring of vacuum pumps, and in particular to a remote monitoring system, method, electronic equipment and medium. Background Art

[0002] A liquid ring vacuum pump is a rotary positive displacement pump that uses water or other process-compatible liquids as a sealing liquid. The rotation of the rotor forms a liquid ring in the pump body, thereby capturing and compressing the gas to achieve the suction and exhaust process. Combining the liquid ring vacuum pump with an embedded system can monitor the operating status of the equipment in real time at the remote end and automatically adjust the operating parameters, thereby achieving intelligent and automated control of the equipment. However, during the operation of the liquid ring vacuum pump, as the operating time increases, the wear of the equipment will reduce the energy conversion efficiency, resulting in a decrease in the system's pumping capacity. Insufficient input power of the liquid ring vacuum pump often causes the system to take longer to reach the target vacuum degree. The existing technology has a serious lack of ability to analyze the operating efficiency of the liquid ring vacuum pump, making it difficult to accurately control the pumping control of the liquid ring vacuum pump, resulting in low process production efficiency. Summary of the Invention

[0003] The object of the present invention is to provide a remote monitoring system, method, electronic device and medium to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a remote monitoring system, which includes a device control module, a data acquisition module, an intelligent analysis module, an intelligent control module and a remote interaction module; The device control module is used to start and stop the liquid ring vacuum pump; when there is an operation task, the liquid ring vacuum pump is started to extract the gas in the pumped system so that the pumped system reaches the target pressure within a specified time; the operation task includes the target pressure of the pumped system and the time to reach the target pressure; the liquid ring vacuum pump start and stop signals are sent to the data acquisition module; The data acquisition module is used to collect parameter data and status data during the operation of the liquid ring vacuum pump; the parameter data includes the current and voltage at the liquid ring vacuum pump impeller control input end; the status data includes the gas pressure and temperature at the liquid ring vacuum pump air inlet; and the collected parameter data and status data are sent to the intelligent analysis module and the remote interaction module; The intelligent analysis module is used to determine the gas volume of the pumped system; analyze the collected parameter data and status data, and calculate the actual efficiency of the liquid ring vacuum pump at the current moment based on the analysis results and the gas volume of the pumped system; and send the calculated actual efficiency of the liquid ring vacuum pump at the current moment to the intelligent control module and the remote interaction module; The intelligent control module is used to calculate the average power required to be adjusted in the next control process of the liquid ring vacuum pump based on the actual efficiency of the liquid ring vacuum pump during operation at the current moment, the operating task of the liquid ring vacuum pump, and the gas pressure and temperature at the gas inlet of the liquid ring vacuum pump at the current moment, and perform control and adjustment at the remote end; and send the calculated average power required to be adjusted in the next control process of the liquid ring vacuum pump to the remote interaction module; The remote interaction module is used to provide an interactive control platform for digitally displaying the collected parameter data, status data, the calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation, and the average power required to be adjusted during the next liquid ring vacuum pump control process; wherein, the management personnel can determine the operating tasks of the liquid ring vacuum pump at the remote end through the interactive control platform, and directly control the average power required to be adjusted during the next liquid ring vacuum pump control process.

[0005] A remote monitoring method, comprising the following steps: S10, determining an operating task of the liquid ring vacuum pump, and starting the liquid ring vacuum pump according to the operating task to extract gas from the pumped system so that the pumped system reaches a target pressure within a specified time; the operating task includes the target pressure of the pumped system and the time to reach the target pressure; S20, collecting parameter data and status data during the operation of the liquid ring vacuum pump; the parameter data includes the current and voltage at the liquid ring vacuum pump impeller control input end; the status data includes the gas pressure and temperature at the liquid ring vacuum pump air inlet; S30, determining the gas volume of the pumped system; analyzing the collected parameter data and status data, and calculating the actual efficiency of the liquid ring vacuum pump at the current moment of operation based on the analysis results and the gas volume of the pumped system; S40. Calculate the average power required to be adjusted in the next control process of the liquid ring vacuum pump based on the actual efficiency of the liquid ring vacuum pump at the current moment, the operating task of the liquid ring vacuum pump, and the gas pressure and temperature at the air inlet of the liquid ring vacuum pump at the current moment, and perform control and adjustment at the remote end.

[0006] An electronic device comprises: a processor and a memory, wherein the memory stores a computer program that can be called by the processor; The processor executes the above-mentioned remote monitoring method by calling the computer program stored in the memory.

[0007] A computer-readable storage medium stores instructions. When the instructions are executed on a computer, the computer is enabled to execute the above-mentioned remote monitoring method.

[0008] Compared with the existing technology, the beneficial effects achieved by the present invention are: by collecting parameter data and status data during the operation of the liquid ring vacuum pump and analyzing them, the actual efficiency of the current liquid ring vacuum pump during operation is calculated and continuously updated, reflecting the current degree of wear of the liquid ring vacuum pump, thereby understanding the real-time operating efficiency of the system and improving the data analysis capability of the operating efficiency of the liquid ring vacuum pump; by calculating the average power required to be adjusted during the next liquid ring vacuum pump control process, the exhaust control of the liquid ring vacuum pump is accurately controlled at the remote end, thereby improving the stability and accuracy of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural diagram of a remote monitoring system of the present invention; Figure 2 It is a schematic diagram of the steps of a remote monitoring method of the present invention. DETAILED DESCRIPTION

[0010] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0011] See also Figure 1-Figure 2 , the present invention provides a technical solution:

[0012] See also Figure 1 , in this embodiment 1: a remote monitoring system is provided, which includes a device control module, a data acquisition module, an intelligent analysis module, an intelligent control module and a remote interaction module; The device control module is used to start and stop the liquid ring vacuum pump; when there is an operation task, the liquid ring vacuum pump is started to extract the gas in the pumped system so that the pumped system reaches the target pressure within a specified time; the operation task includes the target pressure of the pumped system and the time to reach the target pressure; the liquid ring vacuum pump start and stop signals are sent to the data acquisition module; The data acquisition module is used to collect parameter data and status data during the operation of the liquid ring vacuum pump; the parameter data includes the current and voltage at the liquid ring vacuum pump impeller control input end; the status data includes the gas pressure and temperature at the liquid ring vacuum pump air inlet; and the collected parameter data and status data are sent to the intelligent analysis module and the remote interaction module; The intelligent analysis module is used to determine the gas volume of the pumped system; analyze the collected parameter data and status data, and calculate the actual efficiency of the liquid ring vacuum pump at the current moment based on the analysis results and the gas volume of the pumped system; and send the calculated actual efficiency of the liquid ring vacuum pump at the current moment to the intelligent control module and the remote interaction module; The intelligent control module is used to calculate the average power required to be adjusted in the next control process of the liquid ring vacuum pump based on the actual efficiency of the liquid ring vacuum pump during operation at the current moment, the operating task of the liquid ring vacuum pump, and the gas pressure and temperature at the gas inlet of the liquid ring vacuum pump at the current moment, and perform control and adjustment at the remote end; and send the calculated average power required to be adjusted in the next control process of the liquid ring vacuum pump to the remote interaction module; The remote interaction module is used to provide an interactive control platform for digitally displaying the collected parameter data, status data, the calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation, and the average power required to be adjusted during the next liquid ring vacuum pump control process; wherein, the management personnel can determine the operating tasks of the liquid ring vacuum pump at the remote end through the interactive control platform, and directly control the average power required to be adjusted during the next liquid ring vacuum pump control process.

[0013] Furthermore, the intelligent analysis module includes a data collection analysis unit and a real efficiency calculation unit; The collected data analysis unit is used to determine the gas volume of the pumped system; analyze the collected parameter data and status data, and determine the current and voltage of the liquid ring vacuum pump impeller control input terminal at different time stamps based on the parameter data; determine the gas temperature and gas pressure at the liquid ring vacuum pump inlet at different time stamps based on the status data; and send the gas volume of the pumped system and the collected data analysis results to the real efficiency calculation unit; The real efficiency calculation unit is used to calculate the real efficiency of the liquid ring vacuum pump when it is operating at the current moment according to the gas volume of the pumped system and the analysis results of the collected data.

[0014] Furthermore, the intelligent control module includes a real-time data analysis unit, an average power calculation unit and a remote control unit; The real-time data analysis unit is used to determine the gas pressure and temperature at the gas inlet of the liquid ring vacuum pump at the current moment based on the collected status data; determine the target pressure of the pumped system in the operation task and the time to reach the target pressure based on the operation task of the liquid ring vacuum pump; and send the real-time data analysis results to the average power calculation unit; The average power calculation unit is used to calculate the average power required to be adjusted in the next liquid ring vacuum pump control process based on the actual efficiency of the liquid ring vacuum pump during operation at the current moment and the real-time data analysis result; and send the calculated average power required to be adjusted in the next liquid ring vacuum pump control process to the remote control unit; The remote control unit is used to adjust the current and voltage of the next liquid ring vacuum pump impeller control input end according to the calculated average power so that the power of the input end is the calculated average power, thereby extracting the gas in the pumped system.

[0015] In this embodiment: The manager determines the operation task of the liquid ring vacuum pump remotely through the interactive control platform, starts the liquid ring vacuum pump through the equipment control module, extracts the gas in the pumped system, and makes the pumped system reach the target pressure within the specified time; and sends the liquid ring vacuum pump start signal to the data acquisition module; The data acquisition module collects parameter data and status data during the operation of the liquid ring vacuum pump, and sends the collected parameter data and status data to the intelligent analysis module and the remote interaction module; The collected data analysis unit in the intelligent analysis module determines the gas volume of the pumped system, analyzes the collected parameter data and status data, and sends the gas volume of the pumped system and the collected data analysis results to the real efficiency calculation unit; the real efficiency calculation unit calculates the real efficiency of the liquid ring vacuum pump at the current moment, and sends the calculated real efficiency of the liquid ring vacuum pump at the current moment to the intelligent control module and the remote interaction module; The real-time data analysis unit in the intelligent control module analyzes the currently collected status data and sends the real-time data analysis results to the average power calculation unit; the average power calculation unit calculates the average power required to be adjusted in the next liquid ring vacuum pump control process, and sends the calculated average power required to be adjusted in the next liquid ring vacuum pump control process to the remote control unit; the remote control unit adjusts the current and voltage of the next liquid ring vacuum pump impeller control input end based on the calculated average power so that the power of the input end is the calculated average power, thereby extracting the gas in the pumped system; The remote interactive module provides an interactive control platform, which digitally displays the collected parameter data, status data, the calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation, and the average power required to be adjusted during the next liquid ring vacuum pump control process; among them, the manager can determine the operating tasks of the liquid ring vacuum pump at the remote end through the interactive control platform, and directly control the average power required to be adjusted during the next liquid ring vacuum pump control process; when the manager directly controls the average power required to be adjusted during the next liquid ring vacuum pump control process, the intelligent control module controls the average power required to be adjusted during the next liquid ring vacuum pump control process to be constant according to the manager's adjustment settings.

[0016] See also Figure 2 In the second embodiment, a remote monitoring method is provided. In this method, according to the operation tasks set by the management personnel, a liquid ring vacuum pump is used to provide a vacuum environment for industrial production within a specified time, while reducing the input power frequency conversion amplitude of the liquid ring vacuum pump to improve the stability of the system. The method includes the following steps: S10. Determine an operating task for the liquid ring vacuum pump. According to the operating task, start the liquid ring vacuum pump to extract gas from the system to be pumped, so that the system reaches a target pressure within a specified time. The operating task includes the target pressure of the system to be pumped and the time to reach the target pressure.

[0017] S20. Collect parameter data and status data during the operation of the liquid ring vacuum pump; the parameter data includes the current and voltage at the liquid ring vacuum pump impeller control input end; the status data includes the gas pressure and temperature at the liquid ring vacuum pump air inlet.

[0018] Furthermore, the air inlet of the liquid ring vacuum pump is connected to the air exhaust port of the pumped system; when the liquid ring vacuum pump is started, the working fluid in the liquid ring vacuum pump is thrown to the outer edge of the pump chamber under the rotation of the impeller, forming a closed chamber and generating negative pressure, and when the air inlet of the liquid ring vacuum pump is connected to the air exhaust port of the pumped system, the liquid ring vacuum pump absorbs the gas from the pumped system under the action of the gas pressure difference and then discharges it; a pressure sensor and a temperature sensor are installed at the air inlet of the liquid ring vacuum pump; the pressure sensor is used to collect the gas pressure at the air inlet of the liquid ring vacuum pump; the temperature sensor is used to collect the gas temperature at the air inlet of the liquid ring vacuum pump; wherein, the current and voltage of the impeller control input end of the liquid ring vacuum pump are collected by the current and voltage sensors.

[0019] It should be noted that when the liquid ring vacuum pump is operating, the impeller installed in the pump chamber rotates to drive the working fluid to form a closed water ring, thereby extracting the gas in the pumped system. By collecting the current and voltage at the input end of the liquid ring vacuum pump impeller control, the shaft power of the liquid ring vacuum pump is calculated, and the shaft power is used as the total power input when the liquid ring vacuum pump extracts the gas in the pumped system.

[0020] S30, determining the gas volume of the pumped system; analyzing the collected parameter data and status data, and calculating the actual efficiency of the liquid ring vacuum pump at the current moment based on the analysis results and the gas volume of the pumped system.

[0021] Specifically, the method steps are: S301. Determine the gas volume of the pumped system ; Analyze the collected parameter data and status data, and determine different time stamps based on the parameter data Current at the lower liquid ring vacuum pump impeller control input and voltage ; According to the status data, determine and different timestamps Gas temperature at the inlet of the lower liquid ring vacuum pump and gas pressure ; S302, according to and , calculate the actual efficiency of the liquid ring vacuum pump at the current moment : ; in, Indicates the timestamp of the current moment; Indicates different timestamps The number of moles of gas in the system being pumped; represents the ideal gas constant; Indicates the gas temperature at the gas inlet of the liquid ring vacuum pump at the current moment; ; Indicates the time step for a data communication between the liquid ring vacuum pump and the remote end; express The gas pressure at the gas inlet of the liquid ring vacuum pump at that moment; arrive The time step is the sensor data collection time interval.

[0022] In this embodiment, since the air inlet of the liquid ring vacuum pump is connected to the air extraction port of the pumped system, and the liquid ring pump forms a liquid ring through the rotation of the impeller, the process of extracting the gas from the pumped system and compressing the gas in the liquid ring vacuum pump are close to isothermal, so the gas pressure and temperature of the pumped system are considered to be equal to the gas pressure and temperature at the air inlet.

[0023] It should be noted that by calculating arrive The gas pressure changes from arrive The actual work done by the liquid ring vacuum pump on the pumped system ,calculate arrive The total power input when the liquid ring vacuum pump extracts the gas in the pumped system during the time period , and calculate the ratio of the two to obtain the actual efficiency of the liquid ring vacuum pump at the current moment , and the calculated As the real efficiency of the current liquid ring vacuum pump operation, the average power required to be adjusted by the liquid ring vacuum pump at the next moment is accurately controlled, thereby improving the accuracy of the intelligent system; the molar number of the gas is obtained according to the ideal gas state equation.

[0024] S40. Calculate the average power required to be adjusted in the next control process of the liquid ring vacuum pump based on the actual efficiency of the liquid ring vacuum pump at the current moment, the operating task of the liquid ring vacuum pump, and the gas pressure and temperature at the air inlet of the liquid ring vacuum pump at the current moment, and perform control and adjustment at the remote end.

[0025] Specifically, the method steps are: S401. Determine the gas pressure at the inlet of the liquid ring vacuum pump at the current moment based on the collected status data. and temperature ; According to the operating task of the liquid ring vacuum pump, determine the target pressure of the pumped system in the operating task and time to reach target pressure ; S402, based on the actual efficiency of the liquid ring vacuum pump at the current moment and , calculate the average power required to adjust during the next liquid ring vacuum pump control process : ; in, Indicates the number of moles of gas in the system being pumped at the current moment; represents a constant, ; S403, based on the calculated average power , adjust the current and voltage at the next liquid ring vacuum pump impeller control input end so that the power at the input end is , thereby extracting the gas in the pumped system.

[0026] It should be noted that, because the liquid ring vacuum pump does work on the gas in the pumped system, the gas in the pumped system is pumped out, and the number of moles of gas changes. As the gas pressure in the pumped system continues to decrease, the number of moles of gas extracted per unit time also continues to decrease. The work that the liquid ring vacuum pump needs to do during extraction is getting smaller and smaller. Therefore, By calculating the average power required to be adjusted during the next liquid ring vacuum pump control process and performing control and adjustment at the remote end, the liquid ring vacuum pump's exhaust control is accurately controlled, thereby improving the accuracy of the input end power control; wherein, the time step from the current moment to the next liquid ring vacuum pump impeller control is .

[0027] It should be noted that the average power required to be adjusted during the control process of the liquid ring vacuum pump is calculated. , Its function is to accurately give the average power of the next liquid ring vacuum pump impeller control input end when determining the operating task of the liquid ring vacuum pump, thereby reducing the input power frequency conversion amplitude of the liquid ring vacuum pump and improving the stability of the system.

[0028] In this embodiment, the steps S10-S40 are a process in which the remote end controls and adjusts the average power of the liquid ring vacuum pump, and the steps S10-S40 are repeated until the liquid ring vacuum pump completes the operation task.

[0029] Furthermore, an interactive control platform is provided to digitally display the collected parameter data, status data, the calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation, and the average power required to be adjusted during the next liquid ring vacuum pump control process; among them, the management personnel can determine the operating tasks of the liquid ring vacuum pump at the remote end through the interactive control platform, and directly control the average power required to be adjusted during the next liquid ring vacuum pump control process.

[0030] In this implementation, the management personnel view the collected parameter data, status data, the calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation, and the average power required to be adjusted during the next liquid ring vacuum pump control process through the interactive control platform; when the management personnel directly control the average power required to be adjusted during the next liquid ring vacuum pump control process, the average power required to be adjusted during the next liquid ring vacuum pump control process is controlled to be constant.

[0031] In this embodiment, when the liquid ring vacuum pump completes its operation, the liquid ring vacuum pump is turned off, and the gas pressure in the pumped system is kept constant to complete industrial production.

[0032] In the third embodiment, an electronic device is provided, comprising a processor and a memory, wherein the memory stores a computer program that can be called by the processor; The processor executes the steps of implementing the above-mentioned remote monitoring method by calling the computer program stored in the memory.

[0033] In the fourth embodiment of the present invention, a computer-readable storage medium is provided, which stores instructions. When the instructions are executed on a computer, the computer executes the steps of a remote monitoring method as described above to achieve the following functions: determining the operating task of the liquid ring vacuum pump; collecting parameter data and status data during the operation of the liquid ring vacuum pump; calculating the actual efficiency of the liquid ring vacuum pump during operation at the current moment; calculating the average power required to be adjusted during the next liquid ring vacuum pump control process and performing control and adjustment at the remote end.

[0034] The computer-readable storage medium includes various media for storing program codes, such as a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A remote monitoring system, characterized in that: The system includes an equipment control module, a data acquisition module, an intelligent analysis module, an intelligent control module and a remote interaction module; The equipment control module is used to start and shut down the liquid ring vacuum pump; when there is an operation task, the liquid ring vacuum pump is started to extract the gas in the pumped system so that the pumped system reaches the target pressure within a specified time; the operation task includes the target pressure of the pumped system and the time to reach the target pressure; Sending liquid ring vacuum pump start and shut down signals to the data acquisition module; The data acquisition module is used to collect parameter data and status data during the operation of the liquid ring vacuum pump; the parameter data includes the current and voltage at the control input end of the impeller of the liquid ring vacuum pump; the status data includes the gas pressure and temperature at the air inlet of the liquid ring vacuum pump; and the collected parameter data and status data are sent to the intelligent analysis module and the remote interaction module; The intelligent analysis module is used to determine the gas volume of the pumped system; analyze the collected parameter data and status data, and calculate the actual efficiency of the liquid ring vacuum pump at the current moment according to the analysis results and the gas volume of the pumped system; The calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation is sent to the intelligent control module and the remote interaction module; The intelligent control module is used to calculate the average power required to be adjusted in the next control process of the liquid ring vacuum pump according to the actual efficiency of the liquid ring vacuum pump at the current moment, the operation task of the liquid ring vacuum pump, and the gas pressure and temperature at the gas inlet of the liquid ring vacuum pump at the current moment, and to perform control and adjustment at the remote end; and send the calculated average power required to be adjusted in the next control process of the liquid ring vacuum pump to the remote interaction module; The remote interaction module is used to provide an interactive control platform to digitally display the collected parameter data, status data, the calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation, and the average power required to be adjusted during the next liquid ring vacuum pump control process; wherein, the management personnel can determine the operating tasks of the liquid ring vacuum pump at the remote end through the interactive control platform, and directly control the average power required to be adjusted during the next liquid ring vacuum pump control process.

2. A remote monitoring system according to claim 1, characterized in that: The intelligent analysis module includes a data collection analysis unit and a real efficiency calculation unit; The data collection and analysis unit is used to determine the gas volume of the pumped system; analyze the collected parameter data and state data, and determine the current and voltage of the liquid ring vacuum pump impeller control input terminal at different time stamps based on the parameter data; According to the status data, determine the gas temperature and gas pressure at the gas inlet of the liquid ring vacuum pump at different time stamps; send the gas volume size of the pumped system and the analysis results of the collected data to the real efficiency calculation unit; The real efficiency calculation unit is used to calculate the real efficiency of the liquid ring vacuum pump at the current moment according to the gas volume of the pumped system and the analysis result of the collected data.

3. A remote monitoring system according to claim 2, characterized in that: The intelligent control module includes a real-time data analysis unit, an average power calculation unit and a remote control unit; The real-time data analysis unit is used to determine the gas pressure and temperature at the gas inlet of the liquid ring vacuum pump at the current moment according to the collected status data; and to determine the target pressure of the pumped system in the operation task and the time to reach the target pressure according to the operation task of the liquid ring vacuum pump; Sending the real-time data analysis results to the average power calculation unit; The average power calculation unit is used to calculate the average power required to be adjusted in the next liquid ring vacuum pump control process according to the actual efficiency of the liquid ring vacuum pump at the current moment and the real-time data analysis result; and send the calculated average power required to be adjusted in the next liquid ring vacuum pump control process to the remote control unit; The remote control unit is used to adjust the current and voltage at the next liquid ring vacuum pump impeller control input end according to the calculated average power so that the power at the input end is the calculated average power, thereby extracting the gas in the system being pumped.

4. A remote monitoring method, characterized in that: The method comprises the following steps: S10, determining an operation task of the liquid ring vacuum pump, and starting the liquid ring vacuum pump to extract gas in the pumped system according to the operation task, so that the pumped system reaches a target pressure within a specified time; the operation task includes the target pressure of the pumped system and the time to reach the target pressure; S20, collecting parameter data and status data during the operation of the liquid ring vacuum pump; the parameter data includes the current and voltage at the control input end of the impeller of the liquid ring vacuum pump; the status data includes the gas pressure and temperature at the gas inlet of the liquid ring vacuum pump; S30, determining the gas volume of the pumped system; analyzing the collected parameter data and state data, and calculating the actual efficiency of the liquid ring vacuum pump at the current moment according to the analysis results and the gas volume of the pumped system; S40. According to the actual efficiency of the liquid ring vacuum pump at the current moment, the operating task of the liquid ring vacuum pump, and the gas pressure and temperature at the air inlet of the liquid ring vacuum pump at the current moment, the average power required to be adjusted in the next liquid ring vacuum pump control process is calculated and controlled and adjusted at the remote end.

5. A remote monitoring method according to claim 4, characterized in that: The air inlet of the liquid ring vacuum pump is connected with the air exhaust port of the pumped system; when the liquid ring vacuum pump is started, the working fluid in the liquid ring vacuum pump is thrown to the outer edge of the pump chamber under the rotation of the impeller, forming a closed chamber and generating negative pressure. When the air inlet of the liquid ring vacuum pump is connected with the air exhaust port of the pumped system, the liquid ring vacuum pump absorbs the gas from the pumped system under the action of the gas pressure difference and then discharges it; a pressure sensor and a temperature sensor are installed at the air inlet of the liquid ring vacuum pump; the pressure sensor is used to collect the gas pressure at the air inlet of the liquid ring vacuum pump; the temperature sensor is used to collect the gas temperature at the air inlet of the liquid ring vacuum pump.

6. A remote monitoring method according to claim 5, characterized in that: The method steps of step S30 are: S301. Determine the gas volume of the system being pumped ; Analyze the collected parameter data and status data, and determine different timestamps based on the parameter data Current at the lower liquid ring vacuum pump impeller control input and voltage ; According to the status data, determine and different timestamps Gas temperature at the inlet of the lower liquid ring vacuum pump and gas pressure ; S302, according to and , calculate the actual efficiency of the liquid ring vacuum pump at the current moment : ； in, Indicates the timestamp of the current moment; Indicates different timestamps The number of moles of gas in the system being pumped; represents the ideal gas constant; Indicates the gas temperature at the inlet of the liquid ring vacuum pump at the current moment; ; It represents the time step of one data communication between the liquid ring vacuum pump and the remote end; express The gas pressure at the inlet of the liquid ring vacuum pump at the moment; arrive The time step is the sensor data collection time interval.

7. A remote monitoring method according to claim 6, characterized in that: The method steps of step S40 are: S401. Determine the gas pressure at the inlet of the liquid ring vacuum pump at the current moment according to the collected status data. and temperature ; According to the operation task of the liquid ring vacuum pump, determine the target pressure of the system to be pumped in the operation task and the time to reach the target pressure ; S402, based on the actual efficiency of the liquid ring vacuum pump at the current moment and , calculate the average power required to be adjusted during the next liquid ring vacuum pump control process : ; in, Indicates the number of moles of gas in the system being pumped at the current moment; represents a constant, ; S403, based on the calculated average power , adjust the current and voltage at the next liquid ring vacuum pump impeller control input end so that the power at the input end is , thereby extracting the gas in the system being pumped.

8. A remote monitoring method according to claim 7, characterized in that: An interactive control platform is provided to digitally display the collected parameter data, status data, the calculated actual efficiency of the liquid ring vacuum pump at the current moment of operation, and the average power required to be adjusted during the next liquid ring vacuum pump control process; among them, the management personnel can determine the operating tasks of the liquid ring vacuum pump at the remote end through the interactive control platform, and directly control the average power required to be adjusted during the next liquid ring vacuum pump control process.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores a computer program that can be called by the processor; The processor executes a remote monitoring method according to any one of claims 4 to 8 by calling a computer program stored in the memory.

10. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute a remote monitoring method as described in any one of claims 4 to 8.

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