阅读说明：本技术 水泵控制方法、装置、存储介质、计算机设备及水泵系统 (Water pump control method and device, storage medium, computer equipment and water pump system ) 是由 许清贤 于 2020-10-26 设计创作，主要内容包括：本申请涉及一种水泵控制方法、装置、存储介质、计算机设备及水泵系统。该方法包括：在水泵启动状态下,实时获取水流传感器检测到的水流信号；实时获取第一压强传感器检测到的第一压差信号；若连续第一预设时长内获取不到水流信号,和/或,连续第一预设时长内获取到的第一压差信号小于第一阈值,则控制水泵关闭。本申请能够实现水源缺水时自动关停水泵、恢复供水时及时自动重启等功能。并且成本低、施工简单、维护成本低。(The application relates to a water pump control method, a water pump control device, a storage medium, computer equipment and a water pump system. The method comprises the following steps: acquiring a water flow signal detected by a water flow sensor in real time in a water pump starting state; acquiring a first pressure difference signal detected by a first pressure sensor in real time; and if the water flow signal cannot be acquired within the continuous first preset time period and/or the first pressure difference signal acquired within the continuous first preset time period is smaller than a first threshold value, controlling the water pump to be closed. This application can realize that the water source is automatic when lacking water and shuts down the water pump, in time automatic restart when resumeing to supply water etc. function. And the cost is low, the construction is simple, and the maintenance cost is low.)

1. A water pump control method, the method comprising:

acquiring a water flow signal detected by a water flow sensor in real time in a water pump starting state;

acquiring a first pressure difference signal detected by a first pressure sensor in real time;

and if the water flow signal cannot be acquired within the continuous first preset time period and/or the first pressure difference signal acquired within the continuous second preset time period is smaller than a first threshold value, controlling the water pump to be closed.

2. The method of claim 1, wherein prior to said obtaining in real time a water flow signal detected by a water flow sensor, the method further comprises: controlling the water pump to start;

the control water pump starts, includes:

acquiring a second pressure difference signal detected by a second pressure sensor in real time,

and if the second pressure difference signal is greater than a second threshold value, controlling the water pump to start.

3. The method of claim 2, wherein controlling the water pump to start if the second differential pressure signal is greater than a second threshold comprises:

and if the second differential pressure signal is greater than a second threshold value within a third preset duration, controlling the water pump to start.

4. A water pump control apparatus, the apparatus comprising:

the water flow monitoring module is used for acquiring a water flow signal detected by the water flow sensor in real time in a starting state of the water pump;

the first pressure difference signal monitoring module is used for acquiring a first pressure difference signal detected by a first pressure sensor in real time;

and the control module is used for controlling the water pump to be closed if the water flow signal cannot be acquired within the continuous first preset time and/or the first pressure difference signal acquired within the continuous second preset time is smaller than a first threshold value.

5. A water pump system, includes water pump and pipeline, its characterized in that, water pump system still includes: the controller is connected with the water pump, and the water flow sensor and the first pressure sensor are respectively connected with the controller;

the conveying pipeline comprises a water inlet pipe and a water outlet pipe, and the water pump is arranged between the water inlet pipe and the water outlet pipe;

the water flow sensor is arranged on the conveying pipeline and used for detecting a water flow signal;

the first pressure sensor is arranged on the water outlet pipe and used for detecting a first pressure difference signal on the water outlet pipe;

the controller is configured to control the water pump according to the water pump control method of claim 1.

6. The water pump system of claim 5, further comprising a second pressure sensor;

the second pressure sensor is arranged on the water inlet pipe and used for detecting a second pressure difference signal on the water inlet pipe;

the controller is also used for controlling the water pump according to the water pump control method of claim 2.

7. The water pump system of claim 5, wherein the water flow sensor is located at any one of a location between the second pressure sensor and the water pump, a location between a water source and the second pressure sensor, a location between the water pump and the first pressure sensor, and a location between the first pressure sensor and the outlet of the outlet pipe.

8. The water pump system of claim 5, further comprising a pressure tank disposed on the outlet pipe.

9. A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1-3.

10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor executes the program to perform the steps of the method according to any of claims 1-3.

Technical Field

The application relates to the technical field of automation, in particular to a water pump control method and device, a storage medium, computer equipment and a water pump system.

Background

Unable timely automatic start water pump in prior art's water pump control, perhaps, can't in time get into the water shortage protection when the water pump lacks water, after getting into the water shortage protection, can't detect the water source and whether resume supplying water, consequently can't automatic restart water pump when the water source resumes supplying water.

Many control devices employ a timed restart method, i.e., restarting the water pump every time a period of time has elapsed to determine whether the water supply is resumed. But this presents a new problem in that if the restart interval is long, the timeliness is poor. If the restart time interval is short, the water pump is frequently idled when water shortage continues, and the idling of the water pump is very harmful.

For non-conveying pipeline water sources such as wells, pools and canals, a water level meter is often adopted to solve the problem, but the water level meter has the defects of high cost, high construction difficulty, high maintenance cost and the like.

Disclosure of Invention

In order to solve the technical problem that the water pump cannot be automatically started or stopped when not timely controlled, the embodiment of the application provides a water pump control method, a water pump control device, a storage medium, computer equipment and a water pump system.

In a first aspect, an embodiment of the present application provides a water pump control method, including:

acquiring a water flow signal detected by a water flow sensor in real time in a water pump starting state;

acquiring a first pressure difference signal detected by a first pressure sensor in real time;

and if the water flow signal cannot be acquired within the continuous first preset time period and/or the first pressure difference signal acquired within the continuous second preset time period is smaller than a first threshold value, controlling the water pump to be closed.

Optionally, before acquiring the water flow signal detected by the water flow sensor in real time, the method further comprises: controlling the water pump to start;

controlling the water pump to start, including:

acquiring a second pressure difference signal detected by a second pressure sensor in real time,

and if the second differential pressure signal is greater than a second threshold value, controlling the water pump to start.

Optionally, if the second differential pressure signal is greater than a second threshold, controlling the water pump to start, including:

and if the second differential pressure signal is greater than the second threshold value within the continuous third preset time, controlling the water pump to start.

In a second aspect, an embodiment of the present application provides a water pump control device, including:

the water flow monitoring module is used for acquiring a water flow signal detected by the water flow sensor in real time in a starting state of the water pump;

the first pressure difference signal monitoring module is used for acquiring a first pressure difference signal detected by a first pressure sensor in real time;

and the control module is used for controlling the water pump to be closed if the water flow signal cannot be acquired within the continuous first preset time and/or the first pressure difference signal acquired within the continuous second preset time is smaller than a first threshold value.

Optionally, the control module is further configured to control the water pump to start.

In a third aspect, an embodiment of the present application provides a water pump system, where the water pump system includes a water pump and a conveying pipeline, and the water pump system further includes: the water flow sensor and the first pressure sensor are respectively connected with the controller;

the conveying pipeline comprises a water inlet pipe and a water outlet pipe, and the water pump is arranged between the water inlet pipe and the water outlet pipe;

the water flow sensor is arranged on the conveying pipeline and used for detecting a water flow signal;

the first pressure sensor is arranged on the water outlet pipe and used for detecting a first pressure difference signal on the water outlet pipe;

the controller is for controlling the water pump according to the water pump control method of claim 1.

Optionally, the water pump system further comprises a second pressure sensor;

the second pressure sensor is arranged on the water inlet pipe and used for detecting a second pressure difference signal on the water inlet pipe;

the controller is also used for controlling the water pump by the water pump control method.

Optionally, the water flow sensor is located at any one of a position between the second pressure sensor and the water pump, a position between the water source and the second pressure sensor, a position between the water pump and the first pressure sensor, and a position between the first pressure sensor and the water outlet of the water outlet pipe.

Optionally, the water pump system further comprises a pressure tank, and the pressure tank is arranged on the water outlet pipe.

In a fourth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, causes the processor to perform the steps of any one of the methods described above.

In a fifth aspect, embodiments of the present application provide a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to perform the steps of any of the methods described above.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:

according to the embodiment of the application, a water flow signal detected by a water flow sensor is acquired in real time in a water pump starting state; acquiring a first pressure difference signal detected by a first pressure sensor in real time; and if the water flow signal cannot be acquired within the continuous first preset time period and/or the first pressure difference signal acquired within the continuous second preset time period is smaller than a first threshold value, controlling the water pump to be closed. The water supply system can automatically shut down the water pump when the water source is short of water and automatically restart in time when water supply is recovered. And the cost is low, the construction is simple, and the maintenance cost is low.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic flow chart of a water pump control method according to an embodiment;

fig. 2 is a schematic structural diagram of a water pump control device according to an embodiment;

fig. 3 is a block diagram of a water pump system according to an embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic flow chart of a water pump control method according to an embodiment; referring to fig. 1, the method includes the steps of:

s100: and under the starting state of the water pump, acquiring a water flow signal detected by a water flow sensor in real time.

S200: and acquiring a first pressure difference signal detected by the first pressure sensor in real time.

S300: and if the water flow signal cannot be acquired within the continuous first preset time period and/or the first pressure difference signal acquired within the continuous second preset time period is smaller than a first threshold value, controlling the water pump to be closed.

Under the water pump starting state include: when the water pump is in a starting state or is started up.

In a specific embodiment, the controller acquires the water flow signal and the first pressure difference signal in real time, and when the controller cannot detect the water flow signal within a first preset duration continuously, the controller determines that the water pump is in a water shortage state at the moment, and the controller automatically controls the water pump to be turned off and stop working.

In another embodiment, when the water pump is already in a starting state, the controller acquires the water flow signal and the first pressure difference signal in real time, and when the controller detects that the first pressure difference signal is smaller than the first threshold value within the second preset duration, the controller determines that the water pump is in a water shortage state at the moment, and the controller automatically controls the water pump to be closed and stop working.

In another embodiment, when the water pump is already in a starting state, the controller acquires the water flow signal and the first pressure difference signal in real time, and when the controller does not detect the water flow signal within a first continuous preset time period and detects that the first pressure difference signal is smaller than a first threshold value within a second continuous preset time period, the controller determines that the water pump is in a water shortage state at the time, and the controller automatically controls the water pump to be closed and stop working.

The water flow signal is detected by a water flow sensor, and the water flow signal includes information on the presence or absence of water flow or information on the magnitude of water flow. And when the water flow is smaller than the minimum preset value, judging that the water flow signal cannot be detected.

The first pressure difference signal is the pressure difference between the pressure at a certain detection point in the conveying pipeline and the atmospheric pressure.

Preferably, the first pressure sensor is arranged on an outlet pipe of the conveying pipeline. At this time, the first pressure difference signal is a pressure difference between the pressure of the water outlet pipe of the conveying pipeline and the atmospheric pressure.

The water pump can be started manually or by remote control, or automatically.

The water flow sensor is a water flow sensor that outputs a pulse signal, or a signal such as a current or a voltage by sensing water flow. Preferably, the water flow sensor is arranged on the water inlet pipe of the conveying pipeline.

The first preset time and the second preset time are set according to the suction stroke, the working flow of the water pump, the current working state of the water pump (starting or started or working), and the like, and in practical application, the first preset time may be equal to the second preset time. For example, the setting time may be set to 1 minute or 3 minutes or 5 minutes, etc., without being limited thereto.

The controller monitors whether the water pump is in a water shortage state or not by monitoring the pressure difference on the water outlet pipe and/or the water flow on the water inlet pipe, and further determines whether the water pump needs to be controlled to start water shortage protection or not. The automatic stop of the water pump is realized, and the working or running safety of the water pump is protected in time.

When the water pump is in a starting state, the controller acquires a water flow signal detected by the water flow sensor in real time; acquiring a first pressure difference signal detected by a first pressure sensor in real time; and if the water flow signal cannot be acquired within the continuous first preset sub-duration and/or the first pressure difference signal acquired within the continuous second preset sub-duration is smaller than a first threshold value, controlling the water pump to be closed.

Specifically, the controller collects water flow signals through the water flow sensor, collects water pump output water pressure through the first pressure sensor, and if no water flow is detected and the output water pressure is insufficient within a first preset duration, the controller judges that the water source is in a water shortage state, enters a water shortage protection state, and closes the water pump. The first preset time at this time depends on the suction lift, the working flow rate of the water pump, etc., and in practical application, is generally set to be less than 5 minutes.

When the water pump is started and started, the controller acquires a water flow signal detected by the water flow sensor in real time; acquiring a first pressure difference signal detected by a first pressure sensor in real time; and if the water flow signal is not obtained within the third preset sub-duration, and/or the first pressure difference signal obtained within the fourth preset sub-duration is smaller than the first threshold, controlling the water pump to be closed.

Specifically, the controller detects that water flow is interrupted through the water flow sensor and detects that water pump output water pressure is not enough through first pressure sensor, and duration exceeds first predetermined duration, then judges that the water source is short of water, gets into the protection state that lacks water, closes the water pump. The first preset time period at this time depends on the pressure tank capacity, the water pump working flow rate, etc., and usually does not exceed 1 minute.

The first preset time length comprises a first preset sub-time length and a third preset sub-time length. The second preset time duration comprises a second preset sub-time duration and a fourth preset sub-time duration.

In one embodiment, before step S100, the water pump control method further includes: controlling the water pump to start;

controlling the water pump to start, specifically including: and acquiring a second pressure difference signal detected by a second pressure sensor in real time, and controlling the water pump to start if the second pressure difference signal is greater than a second threshold value.

The second pressure difference signal is the pressure difference between the pressure at a certain detection point in the conveying pipeline and the atmospheric pressure.

Preferably, the second pressure sensor is arranged on the water inlet pipe of the conveying pipeline. At this time, the second pressure difference signal is a pressure difference between the pressure of the water inlet pipe of the conveying pipeline and the atmospheric pressure.

Specifically, the controller acquires a second differential pressure signal in real time, and controls the water pump to start when the second differential pressure signal is greater than a second threshold value. Since the second pressure difference signal is the pressure difference across the water inlet pipe, the controller automatically controls the opening of the water pump by monitoring the pressure difference across the water inlet pipe.

In a specific embodiment, if the second differential pressure signal is greater than the second threshold, controlling the water pump to start includes: and if the second differential pressure signal is greater than the second threshold value within the continuous second preset time, controlling the water pump to start.

When the water supply is resumed, the air pressure in the water inlet pipe gradually rises along with the rise of the water level of the water source, and the pressure difference (second pressure difference signal) p between the air pressure in the water inlet pipe and the atmospheric pressure is as follows:

p＝ρgh

rho is the density of water, 1g/cm³。

g is a gravity constant, 0.0098N/g.

h is the height difference from the water surface of the water source to the water surface in the water inlet pipe.

When p exceeds the second threshold, the water source is judged to be supplied with water again, and the water pump can be restarted.

When the second pressure sensor detects that the pressure difference (second pressure difference signal) p between the pressure of the water inlet pipe and the atmospheric pressure exceeds a second threshold value, the water supply is judged to be recovered from the water source, and the water pump can be restarted. The second threshold value can be selected according to different application scenarios.

For example: the water pressure at the tail end of tap water is regulated to be 140kPa in China, but the 140kPa cannot be reached frequently when the water supply is insufficient, particularly when the water supply is just restored. Therefore, in order to start the water pump in time when the water supply is resumed, the second threshold value is usually not more than 140 kPa.

For example: when the water source is non-pipeline water supply such as a pool, a well, a canal and the like, the second threshold value p1 and h (the height difference from the water surface of the water source to the water surface in the water inlet pipe) have the relation p1 ═ ρ ghWhere rho is 1g/cm³And g is 0.0098N/g. For example, if we want to restart the water pump when h reaches 20cm, the threshold p1 is 1 × 0.0098 × 20N/cm²1960Pa, 20g/cm is often used in practice²To indicate, for short, 20 grams of water/air pressure.

In this embodiment, the controller controls the water pump to start only if the second differential pressure signal is greater than the second threshold value continuously for a second preset time period. If the second differential pressure signal is intermittently greater than the second threshold, the controller may make a misjudgment due to unstable water supplied from the water source or water in the delivery pipe flowing back into the water source or other unconfirmed factors, and at this time, the controller does not start the water pump. So as to avoid frequently switching on and off the water pump, reducing the performance of the water pump or damaging a water pump system.

It should be understood that, although the steps in the flowchart of fig. 1 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in fig. 1 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

Fig. 2 is a schematic structural diagram of a water pump control device according to an embodiment. Referring to fig. 2, the water pump control apparatus includes:

the water flow monitoring module 10 is used for acquiring a water flow signal detected by the water flow sensor in real time in a starting state of the water pump;

the first pressure difference signal monitoring module 20 is configured to obtain a first pressure difference signal detected by a first pressure sensor in real time;

the control module 30 is configured to control the water pump to be turned off if the water flow signal is not obtained within the continuous first preset time period and/or the first pressure difference signal obtained within the continuous second preset time period is smaller than a first threshold.

In one embodiment, the control module 30 of the water pump control device is also used to control the water pump to start.

The control module 30 is specifically configured to obtain a second differential pressure signal detected by the second pressure sensor in real time, and control the water pump to start if the second differential pressure signal is greater than a second threshold.

Fig. 3 is a block diagram of a water pump system according to an embodiment. Referring to fig. 3, the water pump system includes a water pump 100 and a delivery pipe 300, and the water pump 100 includes a motor 110 and an impeller 120. The transfer pipe 300 includes an inlet pipe and an outlet pipe. The water pump 100 is disposed between the inlet pipe and the outlet pipe. This water pump system still includes: a controller 200 connected to the water pump 100, and a water flow sensor 400 and a first pressure sensor 500 respectively connected to the controller 200. The water flow sensor 400 is arranged on the conveying pipeline 300 and used for detecting a water flow signal; the first pressure sensor 500 is arranged on the water outlet pipe and used for detecting a first pressure difference signal on the water outlet pipe; the controller 200 is used to control the water pump according to the water pump control method described above. The motor 110 of the water pump 100 is connected to the controller 200 and the impeller 120, respectively.

Specifically, when the water pump 100 is in a started state, the controller 200 acquires a water flow signal detected by the water flow sensor 400 in real time; the controller 200 acquires a first differential pressure signal detected by the first pressure sensor 500 in real time; if the water flow signal is not obtained within the continuous first preset time period and/or the first pressure difference signal obtained within the continuous second preset time period is smaller than the first threshold value, the controller 200 controls the water pump 100 to be closed. Specifically, the controller 200 controls the impeller 120 to stop rotating through the motor 110, thereby controlling the water pump 100 to be turned off to stop operating.

In one embodiment, the water pump system further comprises a second pressure sensor 600; the second pressure sensor 600 is arranged on the water inlet pipe and used for detecting a second differential pressure signal on the water inlet pipe; the controller 200 is also used to control the water pump 100 according to the water pump control method described previously.

Specifically, when the water pump 100 is in a closed state, the controller 200 obtains a second differential pressure signal detected by the second pressure sensor 600 in real time, and if the second differential pressure signal is greater than a second threshold, the controller 200 controls the water pump 100 to start. Specifically, the controller 200 controls the impeller 120 to rotate through the motor 110, thereby controlling the water pump 100 to start operation.

Of course, the controller 200 may also control the water pump 100 to start according to the water flow signal detected by the water flow sensor 400 and the second pressure difference signal on the water inlet pipe detected by the second pressure sensor.

Specifically, when the controller 200 detects that the second differential pressure signal is greater than the second threshold value within a third preset duration, and/or the water flow signal is acquired within a fourth preset duration, the controller 200 controls the water pump 100 to start.

In one particular embodiment, the water flow sensor 400 may be located between the second pressure sensor 600 and the water pump 100 (as shown in position B in fig. 3), the water flow sensor 400 may be located between the water source and the second pressure sensor 600 (as shown in position a in fig. 3), and the water flow sensor 400 may be located between the water pump 100 and the first pressure sensor 500 (as shown in position C in fig. 3).

Referring to fig. 3, in one embodiment, the water pump system further includes a pressure tank 700, and the pressure tank 700 is disposed on the outlet pipe. Specifically, the pressure tank 700 is located between the first pressure sensor 500 and the outlet of the outlet pipe. The pressure tank 700 serves to balance the amount of water and the pressure.

The water flow sensor 400 may also be located between the first pressure sensor 500 and the pressure tank 700 (as shown at position D in fig. 3), and the water flow sensor 400 may also be located between the pressure tank 700 and the outlet of the outlet pipe (as shown at position E in fig. 3).

When the water pump system is applied to non-pipeline water sources such as wells, pools and canals, a check device cannot be installed on a water pipe between the water source and the second pressure sensor as shown in fig. 3. When the water source is short of water, the water in the water inlet pipe is automatically discharged back to the water source under the action of gravity, and the air pressure in the water inlet pipe is consistent with the atmospheric pressure.

When the water supply is resumed, the air pressure in the water inlet pipe is gradually increased along with the increase of the water level of the water source, the pressure difference p (second pressure difference signal) between the air pressure in the water inlet pipe and the atmospheric pressure is gradually increased, when the pressure p exceeds a certain threshold value, the water source is judged to resume the water supply, and the water pump can be restarted.

The water flow sensor 400 is used to detect a water flow signal and transmit it to the controller 200. The second pressure sensor 600 is used to detect the inlet pipe pressure (water pressure or air pressure) and transmit it to the controller 200. The first pressure sensor 500 is used to detect the output pressure of the water pump 100 and transmit it to the controller 200. The controller 200 controls the motor 110 to start or stop according to the information collected by the water flow sensor 400, the first pressure sensor 500 and the second pressure sensor 600, and further controls the impeller 120 to rotate or stop rotating, so as to control the water pump 100 to start or stop working.

Of course, the controller 200 may also use a switch circuit to control the water pump 100 to start or stop according to the acquired water flow signal and the pressure difference signal.

The application provides a water pump system that can automatic shut down when the water source lacks water, when the water source resumes to supply water, can in time automatic restart water pump, can avoid the problem of water pump idle running frequently again, and this scheme both had been suitable for the water supply water source and had been the pipeline water supply water sources such as running water, also was suitable for non-pipeline water sources such as well, pond, ditch.

The method comprises the following steps that a water flow sensor is arranged on a conveying pipeline or a water flow channel and used for collecting water flow signals; a pressure sensor is arranged at the output end of the water pump or on a water outlet pipe and is used for collecting the output water pressure of the water pump; a pressure sensor is arranged at the input end or the water inlet end of the water pump and used for detecting the water pressure or the air pressure of the water inlet pipe. The controller judges whether the water source is lack of water, whether the water supply is recovered and the like according to the information acquired by the three sensors. Thereby achieving the purposes of automatically shutting down the water pump when the water source is short of water and automatically restarting the water pump in time when water supply is resumed. Low cost, simple construction and low maintenance cost.

In one embodiment, a computer device is provided, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program: acquiring a water flow signal detected by a water flow sensor in real time in a water pump starting state; acquiring a first pressure difference signal detected by a first pressure sensor in real time; and if the water flow signal cannot be acquired within the continuous first preset time period and/or the first pressure difference signal acquired within the continuous second preset time period is smaller than a first threshold value, controlling the water pump to be closed.

The processor also implements the steps of any one of the water pump control methods described above when executing the computer program.

In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring a water flow signal detected by a water flow sensor in real time in a water pump starting state; acquiring a first pressure difference signal detected by a first pressure sensor in real time; and if the water flow signal cannot be acquired within the continuous first preset time period and/or the first pressure difference signal acquired within the continuous second preset time period is smaller than a first threshold value, controlling the water pump to be closed.

The computer program, when executed by the processor, further implements the steps of any of the above-described water pump control methods.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.