CN116734174A - Control method and system for electric valve - Google Patents

Abstract

The application belongs to the technical field of electric valves, and provides a control method and a control system of an electric valve, wherein the method comprises the following steps: acquiring real-time data and target data, wherein the real-time data comprises a real-time temperature value on a water return pipeline, a real-time pressure value on a water supply pipeline, a real-time pressure value on the water return pipeline, a real-time flow value on the water supply pipeline and a real-time flow value on the water return pipeline in a heating system; and comparing and analyzing the real-time data with the target data, and calculating to obtain a control command, wherein the control command comprises controlling the opening degree of the electric valve to enable the real-time data to approach the target data. According to the application, the water temperature, the water pressure and the flow are detected by installing the temperature sensor, the pressure sensor and the flow meter on the pipeline, the detected water temperature, water pressure and flow are analyzed with the target value, the opening degree of the electric valve is regulated and controlled according to the analysis result, and the temperature can be rapidly controlled in real time by the method, so that the consumption experience of consumers is improved.

Description

Control method and system for electric valve

Technical Field

The application relates to the technical field of electric valves, in particular to a control method and a control system of an electric valve.

Background

At present, along with the continuous rising of living standard, consumers pay more and more attention to comfort level in the process of consumption, in a heating system, consumers have higher requirements on water temperature, and experience of consumers is influenced by too cold or too heat, so how to quickly regulate and control the water temperature to a target water temperature is important, in addition, in the whole heating system, normal operation of a water supply pipeline is ensured, and the water supply pipeline is prevented from being failed, so that water supply is influenced.

Disclosure of Invention

The application aims to provide a control method and a control system of an electric valve, so as to solve the problems.

In order to achieve the above object, the embodiment of the present application provides the following technical solutions:

in one aspect, an embodiment of the present application provides a control method of an electric valve, including:

acquiring real-time data and target data, wherein the real-time data comprises a real-time temperature value on a water return pipeline, a real-time pressure value on a water supply pipeline, a real-time pressure value on the water return pipeline, a real-time flow value on the water supply pipeline and a real-time flow value on the water return pipeline in a heating system, and the target data comprises a temperature target value, a pressure difference target value and a flow target value;

and comparing and analyzing the real-time data with the target data, and calculating to obtain a control command, wherein the control command comprises controlling the opening degree of the electric valve so that the real-time data is close to the target data.

In a second aspect, an embodiment of the present application provides a control system for an electric valve, where the system includes an acquisition module and a control module.

The first acquisition module is used for acquiring real-time data and target data, wherein the real-time data comprises a real-time temperature value on a water return pipeline, a real-time pressure value on a water supply pipeline, a real-time pressure value on the water return pipeline, a real-time flow value on the water supply pipeline and a real-time flow value on the water return pipeline in the heating system, and the target data comprises a temperature target value, a pressure difference target value and a flow target value;

the control module is used for comparing and analyzing the real-time data with the target data and calculating to obtain a control command, wherein the control command comprises controlling the opening degree of the electric valve so that the real-time data is close to the target data.

In a third aspect, an embodiment of the present application provides a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the control method of an electric valve described above.

The beneficial effects of the application are as follows:

1. according to the application, the water temperature, the water pressure and the flow are detected by installing the temperature sensor, the pressure sensor and the flow meter on the pipeline, the detected water temperature, water pressure and flow are analyzed with the target value, the opening degree of the electric valve is regulated and controlled according to the analysis result, and the temperature can be rapidly controlled in real time by the method, so that the consumption experience of consumers is improved.

2. The application also monitors the temperature of the water supply pipeline, predicts the temperature in the future period through the historical temperature, and can monitor the running state of the pipeline in real time in such a way so as to prevent the pipeline from faults and influencing the water supply.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of a control method of an electric valve according to an embodiment of the application;

fig. 2 is a schematic diagram of a control system of an electric valve according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals or letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

Example 1

As shown in fig. 1, the present embodiment provides a control method of an electric valve, which includes steps S1 and S2.

Step S1, acquiring real-time data and target data, wherein the real-time data comprises a real-time temperature value on a water return pipeline, a real-time pressure value on a water supply pipeline, a real-time pressure value on the water return pipeline, a real-time flow value on the water supply pipeline and a real-time flow value on the water return pipeline in a heating system, and the target data comprises a temperature target value, a pressure difference target value and a flow target value;

in the step, the real-time temperature value on the water return pipeline is acquired by a temperature sensor arranged on the water return pipeline; the real-time pressure value on the water supply pipeline is collected by a pressure sensor arranged on the water supply pipeline; the real-time pressure value on the water return pipeline is collected by a pressure sensor arranged on the water return pipeline; the real-time flow value on the water supply pipeline is collected by a flow meter arranged on the water supply pipeline; the real-time flow value on the water return pipeline is collected by a flow meter arranged on the water return pipeline; the target data is uploaded by staff, and specific numerical values can be set in a self-defined mode according to requirements;

and S2, comparing and analyzing the real-time data with the target data, and calculating to obtain a control command, wherein the control command comprises controlling the opening degree of the electric valve so that the real-time data is close to the target data.

The specific implementation steps of the step comprise a step S21, a step S22 and a step S23;

and S21, comparing the real-time temperature value with the temperature target value, and if the real-time temperature value is larger than the temperature target value, sending a first control command, wherein the first control command comprises a command for controlling the electric valve to reduce the opening degree, and if the real-time temperature value is smaller than the temperature target value, sending a second control command, wherein the second control command comprises a command for controlling the electric valve to increase the opening degree.

The return water temperature is in linear proportion to the temperature of the unit in the heating system, so that the temperature control function of the heating unit is realized through the return water temperature control of the heating unit, the electric valve is externally connected with a PT1000 temperature sensor, the temperature sensor is arranged on a heating return water pipeline, the electric valve monitors the return water temperature in real time and compares with the set return water temperature value, the electric valve reduces the opening degree when the return water temperature exceeds a set value, the flow rate of hot water is reduced, the temperature of the unit is reduced, and conversely, when the return water temperature is lower than the set value, the electric valve increases the opening degree, the flow rate of hot water is increased, and the temperature of the unit is improved. In order to reduce the action frequency of the valve, the stability of the heating pipe network is ensured, and the related proportional integral parameters can be set through a local Bluetooth system and a remote system in the control and adjustment of the backwater temperature, so that the operation stability and energy conservation of the system are ensured.

Step S22, carrying out difference value calculation on the real-time pressure value on the water supply pipeline and the real-time pressure value on the water return pipeline to obtain a difference value result; and comparing the difference result with the pressure difference target value, if the difference result is larger than the pressure difference target value, sending a third control command, wherein the third control command comprises a command for controlling the electric valve to reduce the opening degree, and if the difference result is smaller than the pressure difference target value, sending a fourth control command, wherein the fourth control command comprises a command for controlling the electric valve to increase the opening degree.

The pressure difference of the supplied backwater in the heat supply system is in linear proportion to the temperature of the unit, so that the temperature control function of the heat supply unit is realized through the pressure difference control of the supplied backwater of the heat supply unit, the electric valve is externally connected with a water supply pressure sensor and a backwater pressure sensor, the water supply pressure sensor is arranged on a heat supply water supply pipeline, the backwater pressure sensor is arranged on the heat supply backwater pipeline, the electric valve monitors and calculates the pressure difference of the supplied backwater in real time and compares the pressure difference value with the set pressure difference value, the electric valve reduces the opening when the pressure difference value exceeds the set value, the flow of hot water is reduced, the temperature of the unit is reduced, and conversely, when the pressure difference value is lower than the set value, the electric valve increases the opening, the flow of hot water is increased, and the temperature of the unit is improved. In order to reduce the action frequency of the valve, the stability of the heating pipe network is ensured, and the related proportional integral parameters can be set through a local Bluetooth system and a remote system in differential pressure control adjustment, so that the operation stability and energy conservation of the system are ensured.

And S23, comparing the real-time flow value on the water supply pipeline and the real-time flow value on the return pipeline with the flow target value, if the real-time flow value on the water supply pipeline or the real-time flow value on the return pipeline is larger than the flow target value, sending a fifth control command, wherein the fifth control command comprises a command for controlling the electric valve to reduce the opening degree, and if the real-time flow value on the water supply pipeline or the real-time flow value on the return pipeline is smaller than the flow target value, sending a sixth control command, wherein the sixth control command comprises a command for controlling the electric valve to increase the opening degree.

The water supply flow is in linear proportion to the temperature of the unit in the heat supply system, so that the temperature control function of the heat supply unit is realized through the flow control of the heat supply unit, the electric valve is externally connected with a flow meter, the flow meter is arranged on a heat supply water supply return pipeline, the electric valve reads the instantaneous flow of the flow meter in real time through RS485 and compares the instantaneous flow with the set flow value, the electric valve reduces the opening degree when the flow value exceeds a set value, the flow of hot water is reduced, and the temperature of the unit is reduced, otherwise, when the flow value is lower than the set value, the electric valve increases the opening degree, and the flow of hot water is increased, so that the temperature of the unit is increased. In order to reduce the action frequency of the valve, the stability of the heating pipe network is ensured, and the related proportional integral parameters can be set through a local Bluetooth system and a remote system in flow control adjustment, so that the operation stability and energy conservation of the system are ensured.

In the method, besides the opening degree of the electric valve can be regulated and controlled, the water pipe is possibly damaged due to the fact that the temperature of the water pipe is an important index for normal operation of the water pipe and is too high or too low, so that the pipeline is monitored according to the surface temperature of the water supply pipeline to prevent the pipeline from being faulty and influencing water supply, and the specific method comprises the steps S3 and S4;

s3, acquiring surface temperature data of a water supply pipeline in the heating system in a preset history period, inputting each surface temperature data into a pre-trained variable self-encoder to obtain a predicted value corresponding to each surface temperature data, and performing difference calculation on each surface temperature data and the corresponding predicted value to obtain a first calculation result;

in this step, the preset history period may be a period of time before the current time, for example, the first 24 hours, the first 12 hours, the first 1 hour, etc. before the current time, and the specific period may be set in a user-defined manner according to the user requirement;

in the step, the training sample can be further generated by acquiring surface temperature data under another preset history period, and then the initial variation self-encoder is trained by utilizing the training sample to obtain the variation self-encoder;

s4, adding all the first calculation results to obtain a second calculation result, and adding all the predicted values to obtain a third calculation result; judging whether abnormal values exist in all the surface temperature data based on the second calculation result and the third calculation result, finishing preprocessing all the surface temperature data based on the judgment result, predicting the surface temperature data at a future time point based on the preprocessed surface temperature data, comparing the surface temperature data at the future time point with a preset surface temperature threshold, and sending out alarm information if the surface temperature threshold is exceeded.

The specific implementation steps of the step comprise a step S41 and a step S42;

step S41, dividing the second calculation result by the square root of the third calculation result to obtain a fourth calculation result, comparing the fourth calculation result with a preset threshold value, if the fourth calculation result is smaller than the threshold value, judging that all the surface temperature data have abnormal values, and removing and filling the abnormal values to obtain preprocessed data;

in the step, firstly, whether abnormal data exist in the data is analyzed, if so, abnormal value eliminating and filling processing is carried out, so that the abnormal data are not existed in the data, and the prediction accuracy is improved;

in the step, judging that all the surface temperature data have abnormal values, and removing and filling the abnormal values to obtain the preprocessed data, wherein the specific implementation steps of the preprocessed data comprise step S411 and step S412;

step S411, collecting all surface temperature data to obtain a first set, identifying variable points in the first set, dividing the first set according to the variable points to obtain a plurality of subsets, clustering all the subsets by using a distance-based clustering algorithm, and calculating to obtain a threshold range corresponding to each clustering category according to each obtained clustering category and 3 sigma criterion;

in this step, the 3σ rule is the Laida rule, and two-eight rule can be used in addition to the Laida rule;

and step S412, taking the maximum threshold range formed by all the threshold ranges as a final threshold range, if the surface temperature data is not in the final threshold range, considering the surface temperature data as an abnormal value, performing a rejection operation to obtain surface temperature data after rejecting the abnormal value, performing average calculation on the surface temperature data after rejecting the abnormal value to obtain a fifth calculation result, and filling the missing value by using the fifth calculation result to obtain the data after preprocessing.

In this step, regarding the maximum threshold range formed by the entire threshold ranges as the final threshold range, it is understood that, for example, the first threshold range is 20 to 45, the second threshold range is 15 to 40, and then the maximum threshold range formed by the two threshold ranges is 15 to 45;

and step S42, constructing a differential autoregressive moving average prediction model based on the preprocessed data, and predicting the surface temperature data at a future time point through the differential autoregressive moving average prediction model.

The differential autoregressive moving average prediction model constructed according to the step can predict surface temperature data at any time in the future, and can monitor the running state of the pipeline in real time according to the surface temperature data so as to prevent the pipeline from faults and influencing water supply.

Example 2

As shown in fig. 2, the present embodiment provides a control system of an electric valve, which includes a first acquisition module 701 and a control module 702.

A first obtaining module 701, configured to obtain real-time data and target data, where the real-time data includes a real-time temperature value on a water return pipe, a real-time pressure value on a water supply pipe, a real-time pressure value on a water return pipe, a real-time flow value on a water supply pipe, and a real-time flow value on a water return pipe in a heating system, and the target data includes a temperature target value, a pressure difference target value, and a flow target value;

the control module 702 is configured to compare and analyze the real-time data with the target data, and calculate a control command, where the control command includes controlling an opening of the electric valve, so that the real-time data approaches the target data.

In one embodiment of the disclosure, the control module 702 further includes a first control unit 7021.

The first control unit 7021 is configured to compare the real-time temperature value with the temperature target value, and send a first control command if the real-time temperature value is greater than the temperature target value, where the first control command includes a command for controlling the electric valve to decrease the opening degree, and send a second control command if the real-time temperature value is less than the temperature target value, where the second control command includes a command for controlling the electric valve to increase the opening degree.

In one embodiment of the disclosure, the control module 702 further includes a second control unit 7022.

A second control unit 7022, configured to perform a difference calculation on the real-time pressure value on the water supply pipeline and the real-time pressure value on the water return pipeline, so as to obtain a difference result; and comparing the difference result with the pressure difference target value, if the difference result is larger than the pressure difference target value, sending a third control command, wherein the third control command comprises a command for controlling the electric valve to reduce the opening degree, and if the difference result is smaller than the pressure difference target value, sending a fourth control command, wherein the fourth control command comprises a command for controlling the electric valve to increase the opening degree.

In a specific embodiment of the disclosure, the control module 702 further includes a third control unit 7023.

And a third control unit 7023, configured to compare the real-time flow value on the water supply pipe and the real-time flow value on the return pipe with the flow target value, and send a fifth control command if the real-time flow value on the water supply pipe or the real-time flow value on the return pipe is greater than the flow target value, where the fifth control command includes a command to control the electric valve to decrease the opening degree, and send a sixth control command if the real-time flow value on the water supply pipe or the real-time flow value on the return pipe is less than the flow target value, where the sixth control command includes a command to control the electric valve to increase the opening degree.

In a specific embodiment of the disclosure, the apparatus further includes a second acquisition module 703 and a calculation module 704.

A second obtaining module 703, configured to obtain surface temperature data of a water supply pipeline in the heating system during a preset history period, input each surface temperature data into a pre-trained variable self-encoder to obtain a predicted value corresponding to each surface temperature data, and perform difference calculation on each surface temperature data and the corresponding predicted value to obtain a first calculation result;

a calculation module 704, configured to add all the first calculation results to obtain a second calculation result, and add all the predicted values to obtain a third calculation result; judging whether abnormal values exist in all the surface temperature data based on the second calculation result and the third calculation result, finishing preprocessing all the surface temperature data based on the judgment result, predicting the surface temperature data at a future time point based on the preprocessed surface temperature data, comparing the surface temperature data at the future time point with a preset surface temperature threshold, and sending out alarm information if the surface temperature threshold is exceeded.

In a specific embodiment of the disclosure, the computing module 704 further includes a computing unit 7041 and a prediction unit 7042.

A calculating unit 7041, configured to divide the second calculation result by the square root of the third calculation result to obtain a fourth calculation result, compare the fourth calculation result with a preset threshold, and if the fourth calculation result is smaller than the threshold, determine that all the surface temperature data have abnormal values, and perform removal and filling of the abnormal values to obtain preprocessed data;

a prediction unit 7042 is configured to construct a differential autoregressive moving average prediction model based on the data after preprocessing, and predict surface temperature data at a future time point by the differential autoregressive moving average prediction model.

In one embodiment of the present disclosure, the calculating unit 7041 further includes an aggregating unit 70411 and a culling unit 70412.

The aggregation unit 70411 is configured to aggregate all surface temperature data to obtain a first set, identify variable points in the first set, divide the first set according to the variable points to obtain a plurality of subsets, perform clustering on all the subsets by using a distance-based clustering algorithm, and calculate a threshold range corresponding to each cluster category according to each obtained cluster category and a 3σ criterion;

and a rejection unit 70412, configured to take a maximum threshold range formed by all threshold ranges as a final threshold range, and if the surface temperature data is not in the final threshold range, consider the surface temperature data as an outlier, perform a rejection operation to obtain surface temperature data after the outlier is rejected, perform an average calculation on the surface temperature data after the outlier is rejected to obtain a fifth calculation result, and fill in the missing value by using the fifth calculation result to obtain the data after the preprocessing.

It should be noted that, regarding the system in the above embodiment, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment regarding the method, and will not be described in detail herein.

Example 3

Corresponding to the above method embodiments, the present disclosure further provides a readable storage medium, and a readable storage medium described below and a control method of the electric valve described above may be referred to correspondingly to each other.

A readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the control method of the electric valve of the above-described method embodiment.

The readable storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, and the like.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (8)

1. A control method of an electric valve, comprising:

acquiring real-time data and target data, wherein the real-time data comprises a real-time temperature value on a water return pipeline, a real-time pressure value on a water supply pipeline, a real-time pressure value on the water return pipeline, a real-time flow value on the water supply pipeline and a real-time flow value on the water return pipeline in a heating system, and the target data comprises a temperature target value, a pressure difference target value and a flow target value;

and comparing and analyzing the real-time data with the target data, and calculating to obtain a control command, wherein the control command comprises controlling the opening degree of the electric valve so that the real-time data is close to the target data.

2. The control method of an electric valve according to claim 1, wherein comparing and analyzing the real-time data with the target data, and calculating a control command including controlling an opening degree of the electric valve so that the real-time data approaches the target data, includes:

and comparing the real-time temperature value with the temperature target value, if the real-time temperature value is larger than the temperature target value, sending a first control command, wherein the first control command comprises a command for controlling the electric valve to reduce the opening degree, and if the real-time temperature value is smaller than the temperature target value, sending a second control command, wherein the second control command comprises a command for controlling the electric valve to increase the opening degree.

3. The control method of an electric valve according to claim 1, wherein comparing and analyzing the real-time data with the target data, and calculating a control command including controlling an opening degree of the electric valve so that the real-time data approaches the target data, includes:

performing difference value calculation on the real-time pressure value on the water supply pipeline and the real-time pressure value on the water return pipeline to obtain a difference value result; and comparing the difference result with the pressure difference target value, if the difference result is larger than the pressure difference target value, sending a third control command, wherein the third control command comprises a command for controlling the electric valve to reduce the opening degree, and if the difference result is smaller than the pressure difference target value, sending a fourth control command, wherein the fourth control command comprises a command for controlling the electric valve to increase the opening degree.

4. The control method of an electric valve according to claim 1, wherein comparing and analyzing the real-time data with the target data, and calculating a control command including controlling an opening degree of the electric valve so that the real-time data approaches the target data, includes:

comparing the real-time flow value on the water supply pipeline and the real-time flow value on the return pipeline with the flow target value, if the real-time flow value on the water supply pipeline or the real-time flow value on the return pipeline is larger than the flow target value, sending a fifth control command, wherein the fifth control command comprises a command for controlling the electric valve to reduce the opening degree, and if the real-time flow value on the water supply pipeline or the real-time flow value on the return pipeline is smaller than the flow target value, sending a sixth control command, wherein the sixth control command comprises a command for controlling the electric valve to increase the opening degree.

5. The control method of an electric valve according to claim 1, characterized in that the method further comprises:

acquiring surface temperature data of a water supply pipeline in the heating system in a preset history period, inputting each surface temperature data into a pre-trained variable self-encoder to obtain a predicted value corresponding to each surface temperature data, and performing difference calculation on each surface temperature data and the corresponding predicted value to obtain a first calculation result;

adding all the first calculation results to obtain a second calculation result, and adding all the predicted values to obtain a third calculation result; judging whether abnormal values exist in all the surface temperature data based on the second calculation result and the third calculation result, finishing preprocessing all the surface temperature data based on the judgment result, predicting the surface temperature data at a future time point based on the preprocessed surface temperature data, comparing the surface temperature data at the future time point with a preset surface temperature threshold, and sending out alarm information if the surface temperature threshold is exceeded.

6. The control method of an electric valve according to claim 5, characterized in that judging whether or not there are abnormal values in all the surface temperature data based on the second calculation result and the third calculation result, finishing preprocessing of all the surface temperature data based on the judgment result, and predicting surface temperature data at a future point in time based on the surface temperature data after preprocessing, comprising:

dividing the second calculation result by the square root of the third calculation result to obtain a fourth calculation result, comparing the fourth calculation result with a preset threshold value, and if the fourth calculation result is smaller than the threshold value, judging that all the surface temperature data have abnormal values, and removing and filling the abnormal values to obtain preprocessed data;

a differential autoregressive moving average prediction model is constructed based on the data after preprocessing, and surface temperature data at a future time point is predicted through the differential autoregressive moving average prediction model.

7. The control method of an electric valve according to claim 6, wherein determining that there are abnormal values in all the surface temperature data, and performing removal and filling of the abnormal values to obtain the preprocessed data, comprises:

collecting all surface temperature data to obtain a first set, identifying variable points in the first set, dividing the first set according to the variable points to obtain a plurality of subsets, clustering all the subsets by using a distance-based clustering algorithm, and calculating to obtain a threshold range corresponding to each clustering category according to each obtained clustering category and 3 sigma criterion;

and taking the maximum threshold range formed by all the threshold ranges as a final threshold range, if the surface temperature data is not in the final threshold range, considering the surface temperature data as an abnormal value, performing a rejection operation to obtain surface temperature data with the abnormal value rejected, performing average value calculation on the surface temperature data with the abnormal value rejected to obtain a fifth calculation result, filling the missing value by using the fifth calculation result, and obtaining the data after preprocessing.

8. A control system of an electric valve, comprising:

the first acquisition module is used for acquiring real-time data and target data, wherein the real-time data comprises a real-time temperature value on a water return pipeline, a real-time pressure value on a water supply pipeline, a real-time pressure value on the water return pipeline, a real-time flow value on the water supply pipeline and a real-time flow value on the water return pipeline in the heating system, and the target data comprises a temperature target value, a pressure difference target value and a flow target value;

the control module is used for comparing and analyzing the real-time data with the target data and calculating to obtain a control command, wherein the control command comprises controlling the opening degree of the electric valve so that the real-time data is close to the target data.