Control method of a swimming pool system and swimming pool system

Abstract

The application discloses a kind of control method of swimming pool system and swimming pool system, it is related to swimming pool system technical field, wherein, the control method of swimming pool system includes water pump and temperature control device, the control method of swimming pool system includes temperature control priority step or circulation priority step;Temperature control priority step includes: identify whether water pump is opened;If water pump is opened, whether pool water temperature reaches requirement is judged: if reaches, temperature control device and water pump are closed, return to the step of identifying whether water pump is opened;Otherwise, temperature control device is started;If water pump is closed, then open water pump, whether pool water temperature reaches requirement is judged again: if reaches, temperature control device and water pump are closed;Otherwise, temperature control device is started;Circulation priority step includes: identify whether water pump is opened;If water pump is opened, whether pool water temperature reaches requirement is judged: if reaches, temperature control device is closed;Otherwise, temperature control device is started;The technical scheme provided in the application aims at facilitating user operation, reduces operation threshold.

Description

Technical Field

[0001] This invention relates to the field of swimming pool system technology, and in particular to a control method for a swimming pool system and a swimming pool system. Background Technology

[0002] Current pool management typically follows a standardized paradigm based on independent functional equipment. Pool management involves water pump circulation, water treatment purification, heat pump temperature regulation, pool cover insulation, etc., and involves heat pumps, water pumps, sand filters, and salt machines.

[0003] For example, the water treatment device patent with publication number CN1143828C includes: an electrolytic container for holding water and an electrolytic electrode placed inside the electrolytic container, wherein water is injected into the electrolytic container, and the electrode is energized to perform electrolysis to sterilize the water; a water treatment passage connected to a water tank for storing water, wherein water from the water tank is injected into the electrolytic container and the water in the electrolytic container is returned to the water tank; a circulation pump installed downstream of the electrolytic container in the water treatment passage for circulating water; and a gas separation filter installed in the water treatment passage for separating the gas generated by electrolysis from the water, which discloses the arrangement of the pool water heat exchanger and the circulation pump.

[0004] For example, a patent for an automatic cleaning and easy-to-disassemble filtration method, with publication number CN107551670A, discloses that the filter sand tank body is provided with an outwardly extending water outlet pipe, water inlet pipe and sewage discharge pipe, with the water inlet pipe located on one side of the water outlet pipe.

[0005] The problem with existing technologies is that pool systems include multiple specialized devices (such as heat pumps and water pumps), whose operation is highly dependent on each other (such as temperature regulation depending on water circulation). This complexity of the operating logic is transferred to the user, resulting in complicated operation and high requirements for user expertise. Summary of the Invention

[0006] The main objective of this invention is to propose a control method and system for a swimming pool system, aiming to facilitate user operation and lower the operational threshold. This invention constructs a central control system capable of executing operational logic, enabling coordinated control of multiple devices and centralized parameter management. This breaks down device silos, thereby improving management efficiency, optimizing user experience, and promoting the intelligent and integrated upgrade of swimming pool management. It is a necessary path to solve user operational difficulties and achieve an enhanced experience.

[0007] To achieve the above objectives, the present invention proposes a control method for a swimming pool system, the swimming pool system including a water pump for pool water circulation and a temperature control device for pool water temperature regulation, the control method for the swimming pool system including a temperature control priority step or a circulation priority step.

[0008] The temperature control priority steps include: Identify whether the water pump is turned on; If the water pump is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device and the water pump, and return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device. If the water pump is turned off, turn the water pump on and then determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device and the water pump, and return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device. The cycle priority steps include: Identify whether the water pump is turned on; If the water pump is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device and return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device.

[0009] In one embodiment, the step of shutting off the temperature control device and the water pump if the pool water temperature reaches the required level, and returning to the step of identifying whether the water pump is turned on, includes: if the pool water temperature reaches the required level, shutting off the temperature control device and the water pump, and after a first shutdown time has elapsed, returning to the step of identifying whether the water pump is turned on; and / or, The step of turning on the water pump if it is turned off and then determining whether the pool water temperature has reached the required level includes: turning on the water pump if it is turned off, and then determining whether the pool water temperature has reached the required level after the water pump has been running for a first time.

[0010] In one embodiment, the step of turning on the water pump if it is turned off, and then determining whether the pool water temperature has reached the required level after the water pump has been running for a first operating time, includes: If the water pump is turned off, turn the water pump on, control the water pump to work at the set speed, and after the water pump has been running for the first time, determine whether the pool water temperature has reached the requirement.

[0011] In one embodiment, the swimming pool system includes a first component and a second component, and the control method of the swimming pool system includes a fault detection step, the fault detection step including: Obtain the water flow detection status at the first component and the second component; If the detection status of both the first component and the second component is abnormal, the speed of the water pump is adjusted to the maximum. After the set test time has elapsed, the water flow detection status at the first component and the second component is acquired again. If the detection status of the first component and the second component is still abnormal, a water leakage fault is reported, and the temperature control device and the water pump are controlled to stop working.

[0012] In one embodiment, after the step of re-acquiring the water flow detection status at the first component and the second component, the method further includes: If the detection status of the first component and the second component is not both abnormal, then after controlling the water pump to resume its original speed, the water flow detection status at the first component and the second component is acquired again. If the detection status of at least one of the first component and the second component is abnormal, a water shortage fault will be reported, and a reminder will be given to increase the water pump flow rate or to check the part whose detection status is abnormal.

[0013] In one embodiment, after the step of obtaining the water flow detection status at the first component and the second component, the method further includes: If the detection status of either the first component or the second component is abnormal, a water shortage fault will be reported, and a reminder will be given to increase the water pump flow rate or to check the part whose detection status is abnormal.

[0014] In one embodiment, obtaining the water flow detection status at the first component and the second component includes obtaining the water flow velocity at the first component and the second component.

[0015] In one embodiment, the step of determining whether the pool water temperature has reached the required level includes: In heating mode, determine whether the pool water temperature is greater than or equal to the sum of the set temperature and the first temperature margin; or, In cooling mode, determine whether the pool water temperature is less than or equal to the difference between the set temperature and the second temperature margin; Wherein, the set temperature, the first temperature margin, and the second temperature margin are all set constants.

[0016] In one embodiment, if the water pump is turned on, the step of determining whether the pool water temperature has reached the required level is as follows: if the pool water temperature has reached the required level, the temperature control device is turned off, and the process returns to the step of identifying whether the water pump is turned on; otherwise, the step of turning on the temperature control device includes: If the water pump is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device, and after a second shutdown time, return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device, and after a second running time, return to the step of determining whether the pool water temperature has reached the required level.

[0017] The present invention also proposes a control method for a swimming pool system, the swimming pool system including a sand filter for pool water filtration, the control method of the swimming pool system including a sand filter backwashing step, the sand filter backwashing step including: Identify whether the backwashing conditions are met, including requirements for the pressure detection value of the sand tank; If the conditions are met, the specific backwashing steps are executed. After the backwashing is completed, the process returns to the step of identifying whether the backwashing conditions are met.

[0018] In one embodiment, the pool system includes a pool cover and a drain valve for draining pool water, the sand tank includes a valve and a sand tank head, and the backwashing conditions include at least one of the following: the pool cover is not unfolded, the drain valve is closed, the valve is in an open or closed state, and the sand tank head is open.

[0019] In one embodiment, the step of starting specific backwashing steps if the conditions are met, and returning to the step of identifying whether the backwashing conditions are met after completion, includes: If the condition is met, then proceed to the waiting period; If the waiting time is interrupted, return to the step of identifying whether the anti-washing condition is met; if the waiting time ends, start executing the specific anti-washing steps, and return to the step of identifying whether the anti-washing condition is met after execution.

[0020] In one embodiment, the pool system includes a water pump for pool water circulation, and further includes: The system identifies whether the water pump is on; if so, it shuts down the water pump.

[0021] In one embodiment, the sand tank includes a valve, and the specific backwashing step includes: Control the valve to the backwash position and control the water pump to backwash the sand tank; After turning off the water pump and controlling the valve to the forward washing position, the water pump is then turned on to perform a forward wash on the sand tank. Turn off the water pump and control the valve to its initial position.

[0022] The present invention also proposes a swimming pool system, comprising: a swimming pool, a circulation pipe, a water pump, and a controller, wherein both ends of the circulation pipe are connected to the swimming pool; the water pump is disposed in the circulation pipe for circulating the swimming pool water; the system includes: A temperature control device, installed in the circulation pipe, is used for regulating the temperature of the swimming pool water; and, Temperature detector, used to detect the temperature of swimming pool water; The controller is used to electrically connect the water pump, the temperature control device, and the temperature detector; the controller includes a memory, a processor, and a program for a control method of the swimming pool system stored in the memory and executable on the processor, wherein the program for the control method of the swimming pool system, when executed by the processor, implements the steps of the control method of the swimming pool system as described in any one of claims 1 to 9; and / or, The system includes: A sand filter, installed in the circulation pipe, is used for filtering swimming pool water; A pressure detector is used to detect the water pressure at the sand tank; and, The controller is used to electrically connect the water pump, the sand filter, and the pressure detector; the controller includes a memory, a processor, and a program for a control method of the swimming pool system stored in the memory and executable on the processor, wherein when the program for the control method of the swimming pool system is executed by the processor, it implements the steps of the control method of the swimming pool system as described in any one of claims 10 to 14.

[0023] This technical solution includes two system control modes, corresponding to a temperature control priority step and a circulation priority step. Either mode can be selected to meet the needs of different scenarios. In temperature control priority mode, regardless of whether the water pump is initially turned on, the system ensures the pump is running before judging the temperature, thus guaranteeing effective water circulation during temperature adjustment and preventing localized excessively high or low water temperatures and uneven pool water temperature. Simultaneously, once the required water temperature is reached, the system shuts down the temperature control device and the water pump, achieving constant temperature control, pool water circulation, and efficient energy utilization. In contrast, in circulation priority mode, with the water pump on, the system controls the start and stop of the temperature control device only based on whether the water temperature meets the target. The water pump continues to run to ensure water circulation, filtration, and renewal, maintaining good water quality. This two-step design allows the pool system to flexibly respond to users' different priorities regarding pool water temperature adjustment efficiency and circulation effect, simplifying operation without requiring users to understand the sequence of equipment operation, lowering the operational threshold, and improving the system's applicability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1A schematic flowchart of the temperature control priority step in one embodiment of the control method for the swimming pool system provided by the present invention; Figure 2 A flowchart illustrating the cycle priority steps in one embodiment of the control method for the swimming pool system provided by the present invention; Figure 3 A schematic flowchart of the sand tank backwashing step in one embodiment of the control method for the swimming pool system provided by the present invention; Figure 4 A schematic diagram of the control logic of an embodiment of the control method for a swimming pool system provided by the present invention; Figure 5 A schematic diagram of the control logic for the fault detection step in an embodiment of the control method for the swimming pool system provided by the present invention; Figure 6 A schematic diagram of the control logic for a specific backwashing step in an embodiment of the control method for the swimming pool system provided by the present invention; Figure 7 A schematic diagram of the control logic for the sand filter backwashing step in one embodiment of the control method for the swimming pool system provided by the present invention; Figure 8 A schematic diagram of the controller structure in one embodiment of the swimming pool system provided by the present invention; Figure 9 This is a schematic diagram of the swimming pool system provided by the present invention.

[0026] Explanation of reference numerals in the attached figures: 1. Swimming pool; 11. Pool cover; 2. Circulation pipe; 21. Water supply pipe; 3. Water pump; 4. Electrolytic cell; 5. Control valve; 51. Water supply valve; 6. Controller; 7. Temperature control device; 71. Heat pump; 72. Solar heater; 8. Sand filter; 81. Pressure detector; 9. Drain valve; 10. Temperature detector; 1001. Processor; 1002. Communication bus; 1003. User interface; 1004. Network interface; 1005. Memory.

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

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, and back), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0031] Current pool management typically follows a standardized paradigm based on independent functional equipment. Pool management involves water pump circulation, water treatment purification, heat pump temperature regulation, pool cover insulation, etc., and involves heat pumps, water pumps, sand filters, and salt machines.

[0032] For example, the water treatment device patent with publication number CN1143828C includes: an electrolytic container for holding water and an electrolytic electrode placed inside the electrolytic container, wherein water is injected into the electrolytic container, and the electrode is energized to perform electrolysis to sterilize the water; a water treatment passage connected to a water tank for storing water, wherein water from the water tank is injected into the electrolytic container and the water in the electrolytic container is returned to the water tank; a circulation pump installed downstream of the electrolytic container in the water treatment passage for circulating water; and a gas separation filter installed in the water treatment passage for separating the gas generated by electrolysis from the water, which discloses the arrangement of the pool water heat exchanger and the circulation pump.

[0033] For example, a patent for an automatic cleaning and easy-to-disassemble filtration method, with publication number CN107551670A, discloses that the filter sand tank body is provided with an outwardly extending water outlet pipe, water inlet pipe and sewage discharge pipe, with the water inlet pipe located on one side of the water outlet pipe.

[0034] The problem with existing technologies is that pool systems include multiple specialized devices (such as heat pumps and water pumps), whose operation is highly dependent on each other (such as temperature regulation depending on water circulation). This complexity of the operating logic is transferred to the user, resulting in complicated operation and high requirements for user expertise.

[0035] Based on the above problems, this invention proposes a control method for a swimming pool system.

[0036] Please see Figure 1 , Figure 2 and Figure 4 In one embodiment of the present invention, the control method of the swimming pool system includes a water pump 3 for pool water circulation and a temperature control device 7 for pool water temperature regulation. The control method of the swimming pool system includes a temperature control priority step or a circulation priority step. The temperature control priority steps include: S100: Identify whether the water pump 3 is turned on; S110: If the water pump 3 is turned on, determine whether the pool water temperature has reached the requirement: if the pool water temperature has reached the requirement, turn off the temperature control device 7 and the water pump 3, and return to the step of identifying whether the water pump 3 is turned on; otherwise, turn on the temperature control device 7. S120: If the water pump 3 is off, turn on the water pump 3 and then determine whether the pool water temperature has reached the requirement: if the pool water temperature has reached the requirement, turn off the temperature control device 7 and the water pump 3, and return to the step of identifying whether the water pump 3 is on; otherwise, turn on the temperature control device 7. The cycle priority steps include: S200: Identify whether the water pump 3 is turned on; S210: If the water pump 3 is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device 7 and return to the step of identifying whether the water pump 3 is turned on; otherwise, turn on the temperature control device 7.

[0037] This technical solution includes two system control modes, corresponding to a temperature control priority step and a circulation priority step. Either mode can be used to meet the needs of different scenarios. In temperature control priority mode, regardless of whether water pump 3 is initially turned on, the system ensures that water pump 3 is running before judging the temperature, thus guaranteeing effective circulation of pool water during temperature adjustment and avoiding problems such as excessively high or low local water temperatures and uneven water temperature in swimming pool 1. Simultaneously, once the required water temperature is reached, the system controls and shuts down the temperature control device 7 and water pump 3, achieving constant temperature control, pool water circulation, and rational energy utilization. In contrast, in circulation priority mode, with water pump 3 on, the system controls the start and stop of the temperature control device 7 only based on whether the water temperature meets the target. Water pump 3 continues to run to ensure the circulation, filtration, and renewal of pool water, ensuring good water quality. This two-step design allows the pool system to flexibly respond to users' different priorities regarding pool water temperature adjustment efficiency and circulation effect, improving the system's applicability.

[0038] Either a temperature-priority step or a circulation-priority step can be selected for the system to execute. During the circulation-priority step, the water pump 3 can be manually controlled or controlled by the system program, such as timed on / off switching. The pool system includes a temperature control switch, which allows users to control the continuation or termination of both the temperature-priority and circulation-priority steps. In practical applications, the system may include only one of these steps, either the temperature-priority or circulation-priority step.

[0039] The temperature control device 7 can be used for heating or cooling, including but not limited to at least one of heat pump 71, solar water heater, electric heater and chiller.

[0040] In one embodiment, if the pool water temperature reaches the required level, the temperature control device 7 and the water pump 3 are turned off, and the process returns to the step of identifying whether the water pump 3 is turned on. This includes: S111: If the pool water temperature reaches the required level, the temperature control device 7 and the water pump 3 are turned off. After a first shutdown time has elapsed, the process returns to the step of identifying whether the water pump 3 is turned on. In another embodiment, the step of turning on the water pump 3 if it is turned off, and then determining whether the pool water temperature reaches the required level, includes: S121: If the water pump 3 is turned off, the water pump 3 is turned on. After the water pump 3 has been running for a first operating time, the process then determines whether the pool water temperature reaches the required level. Either of these two embodiments can be used, or both can be used simultaneously.

[0041] This technical solution, by setting a first shutdown time, avoids the system restarting immediately when the pool water temperature just reaches the required level, reducing the impact of frequent equipment start-stop cycles on lifespan, minimizing repeated system checks when the required temperature is reached, saving system resources, and allowing a buffer time for the pool water temperature after shutdown to maintain temperature stability. In another embodiment, this technical solution, by allowing the water pump 3 to operate for a first running time before judging the temperature, ensures sufficient pool water circulation, making the detected temperature closer to the actual overall pool water temperature, avoiding judgment errors caused by uneven mixing of localized water temperatures, improving the accuracy of temperature judgment, reducing repeated system checks when the required temperature is not reached, and saving system resources.

[0042] There is no limit to the initial shutdown time; it can be 10 minutes, 30 minutes, or 60 minutes. There is also no limit to the initial running time; it can be 3 minutes, 10 minutes, or 30 minutes.

[0043] In one embodiment, during the first shutdown time, the water pump 3 is controlled to remain shut down.

[0044] In one embodiment, the step of turning on the water pump 3 if it is turned off, and then determining whether the pool water temperature has reached the required level after the water pump 3 has been running for a first operating time, includes: S121a: If the water pump 3 is turned off, then the water pump 3 is turned on, the water pump 3 is controlled to work at the set speed, and after the water pump 3 has been working for the first running time, it is then determined whether the pool water temperature has reached the requirement.

[0045] By controlling the water pump 3 to operate at a set speed, it is possible to ensure that the pool water circulates at a stable flow rate and pressure during the first operating time, ensuring that the pool water in different areas can be fully mixed, making the temperature detection results more representative. At the same time, it is also convenient to flexibly adjust the operating parameters of the water pump 3 according to actual needs, such as different seasons and different pool usage conditions, in order to achieve the best circulation and temperature regulation effect.

[0046] In the specific implementation process, the speed of water pump 3 is set to be less than the maximum speed of water pump 3. The set speed is preferably 30% to 60% of the maximum speed of water pump 3 to avoid the water flow rate being too fast, save energy, and at the same time facilitate speeding up in the fault detection step.

[0047] Please see Figure 5 In one embodiment, the swimming pool system includes a first component and a second component, and the control method of the swimming pool system includes a fault detection step, the fault detection step including: S300: Obtain the water flow detection status at the first component and the second component; S310: If the detection status of the first component and the second component is abnormal, adjust the speed of the water pump 3 to the maximum, and after adjusting for a set test time, obtain the water flow detection status of the first component and the second component again. S311: If the detection status of the first component and the second component is still abnormal, a water leakage fault is reported, and the temperature control device 7 and the water pump 3 are controlled to stop working.

[0048] This technical solution facilitates the determination of fault location and type by detecting the water flow status at the first and second components. When both the first and second components show abnormalities, the water pump 3 is first adjusted to its maximum speed and tested again after a set test time. This eliminates false alarms caused by insufficient water flow. If the test is still abnormal, a leak can be accurately identified, allowing for timely shutdown of the relevant equipment and preventing greater losses and safety hazards caused by the leak.

[0049] The first and second components can be parts of the pool system, respectively. They can be a portion of the circulation pipe 2 or components connected to the circulation pipe 2. These components can be a temperature control device 7 or a salt generator, etc. In this embodiment, the first component includes the temperature control device 7, i.e., a heat pump 71, and the second component includes a salt generator. The test time is not limited; for example, it can be 2 minutes, 4 minutes, or 10 minutes. In the event of a leak, the devices that control the shutdown are not limited to the temperature control device 7 and the water pump 3, but can also include devices affected by the leak, such as the salt generator and sand filter 8 on the pool circulation pipe 2.

[0050] In one embodiment, after the step of re-acquiring the water flow detection status at the first component and the second component, the method further includes: S312: If the detection status of the first component and the second component is not both abnormal, then after controlling the water pump 3 to resume its original speed, the water flow detection status at the first component and the second component is acquired again. S3121: If the detection status of at least one of the first component and the second component is abnormal, a water shortage fault is reported, and a reminder is given to increase the flow rate of the water pump 3 or to check the part whose detection status is abnormal.

[0051] If not all detected conditions are abnormal, restore water pump 3 to its original speed and test again to further confirm the cause of the fault. If the equipment still shows abnormal conditions at this time, it is determined to be a water shortage fault, and specific solutions are given, such as increasing the flow rate of water pump 3 or checking the installation method of the first or second component parts, for example, checking for blockages or leaks. This helps to quickly locate the fault and solve the problem, improving the convenience and efficiency of system maintenance.

[0052] In the specific implementation process, after the water pump 3 in S312 returns to its original speed, it can run for 3 to 5 minutes, depending on the set test time. After that, the water flow detection status at the first component and the second component is acquired again. In step S3121, after the water pump 3 is accelerated in S310, it is possible to only remind the parts whose detection status is abnormal, without having to accelerate the water pump 3 again.

[0053] In one embodiment, after the step of obtaining the water flow detection status at the first component and the second component, the method further includes: S320: If the detection status of the first component and the second component is abnormal, a water shortage fault is reported, and a reminder is given to increase the flow rate of the water pump 3 or to check the part with the abnormal detection status.

[0054] This technical solution adopts a method that directly identifies a water shortage fault when only one device detects an abnormal status and provides corresponding reminders. It can quickly respond to abnormal situations of a single device, take timely measures to adjust the flow rate of water pump 3 or check the equipment installation or for blockages, avoid the impact of water shortage on the normal operation of the equipment, and ensure the stable operation of the swimming pool system.

[0055] In one embodiment, obtaining the water flow detection status at the first component and the second component includes obtaining the water flow velocity at the first component and the second component.

[0056] This technical solution uses water flow velocity as the basis for judging the detection status, as water flow velocity can directly reflect the operating condition of the equipment. When the water flow velocity is abnormal, it may mean that there are problems such as water shortage, leakage, or equipment blockage in the system. By monitoring the water flow velocity, these potential faults can be detected in time, providing accurate data support for subsequent fault diagnosis and handling.

[0057] In this embodiment, the water flow velocity is obtained by the flow velocity sensor as the basis for judging the detection status. When all detection statuses are abnormal, the flow velocity sensor reports the E3 command to the controller 6.

[0058] In another embodiment, obtaining the water flow detection status at the first component and the second component includes obtaining the water pressure at the first component and the second component.

[0059] In one embodiment, the step of determining whether the pool water temperature has reached the required level includes: In heating mode, determine whether the pool water temperature is greater than or equal to the sum of the set temperature and the first temperature margin; or, In cooling mode, determine whether the pool water temperature is less than or equal to the difference between the set temperature and the second temperature margin; Wherein, the set temperature, the first temperature margin, and the second temperature margin are all set constants.

[0060] This technical solution employs different temperature judgment conditions for heating and cooling states, and introduces a temperature margin. When heating, the temperature adjustment stops only when the set temperature plus the margin is reached; when cooling, the temperature stops only when the set temperature minus the margin is reached. This ensures that the pool water temperature fluctuates within a relatively stable range that meets the set temperature requirements, improving the user experience and extending the service life of the equipment.

[0061] There is no limitation on the set temperature range; for example, it can be from 23℃ to 30℃. Specifically, in heating mode, a set temperature of 23℃ corresponds to the required swimming pool water temperature, with a first temperature margin of 3℃, meaning the requirement is met when the pool water temperature is greater than or equal to 26℃. In cooling mode, a set temperature of 27℃ corresponds to the required swimming pool water temperature, with a second temperature margin of 2℃, meaning the requirement is met when the pool water temperature is less than or equal to 25℃.

[0062] In a further embodiment, determining whether the pool water temperature meets the requirements includes: in the heating state, determining whether the pool water temperature is greater than or equal to the sum of the set temperature and the first temperature margin; if the pool water temperature meets the requirements, turning off the temperature control device 7 and the water pump 3; otherwise, further determining whether the pool water temperature is greater than or equal to the set temperature, if yes, no operation is performed, if no, turning on the temperature control device 7.

[0063] In cooling mode, the system determines whether the pool water temperature is less than or equal to the difference between the set temperature and the second temperature margin. If the pool water temperature meets the requirement, the temperature control device 7 and the water pump 3 are turned off. Otherwise, the system further determines whether the pool water temperature is less than or equal to the set temperature. If yes, no operation is performed; otherwise, the temperature control device 7 is turned on. The set temperature, the first temperature margin, and the second temperature margin are all set constants.

[0064] This setting avoids frequent start-stop cycles near the set temperature, ensuring the pool water temperature fluctuates within a relatively stable range that meets the set temperature requirements. This improves the user experience and extends the equipment's lifespan.

[0065] Specifically, in heating mode, the set temperature is 23℃, corresponding to the required swimming pool water temperature. The first temperature margin is 3℃, meaning that when the pool water temperature is greater than or equal to 26℃, the requirement is met, and the temperature control device 7 and the water pump 3 are turned off. Otherwise, further judgment is made: if the temperature is greater than or equal to 23℃, no operation is performed; if the temperature is less than 23℃, the temperature control device 7 is turned on for heating. In cooling mode, the set temperature is 27℃, corresponding to the required swimming pool water temperature. The second temperature margin is 2℃, meaning that when the pool water temperature is less than or equal to 25℃, the requirement is met, and the temperature control device 7 and the water pump 3 are turned off. Otherwise, further judgment is made: if the pool water temperature is less than or equal to 27℃, if yes, no operation is performed; if no, the temperature control device 7 is turned on for cooling.

[0066] In one embodiment, step S210: If the water pump 3 is turned on, determine whether the pool water temperature has reached the required level; if the pool water temperature has reached the required level, turn off the temperature control device 7 and return to the step of identifying whether the water pump 3 is turned on; otherwise, the step of turning on the temperature control device 7 includes: S210a: If the water pump 3 is turned on, determine whether the pool water temperature has reached the required level: If the pool water temperature has reached the required level, turn off the temperature control device 7, and after the second shutdown time, return to the step of identifying whether the water pump 3 is turned on; otherwise, turn on the temperature control device 7, and after the second running time, return to the step of determining whether the pool water temperature has reached the required level.

[0067] This technical solution, by setting a second shutdown time and a second running time in the cyclic priority step, can better coordinate the operation of the water pump 3 and the temperature control device 7. When the pool water temperature reaches the required level, the temperature control device 7 is shut down and re-detected after the second shutdown time, which avoids frequent start-stop of the temperature control device 7 and reduces system resource consumption. When the required level is not reached, the temperature control device 7 is turned on and runs for the second running time before the temperature is judged, which can ensure the overall temperature regulation effect of the pool water in swimming pool 1 and avoid repeated judgments in a short period of time, making the system operation more stable and efficient.

[0068] There is no limit to the second shutdown time; for example, it can be 10 minutes, 30 minutes, or 60 minutes. There is no limit to the second running time; for example, it can be 3 minutes, 10 minutes, or 30 minutes.

[0069] In one embodiment, after the step of identifying whether the water pump 3 is turned on, S200 includes: S220a: if the water pump 3 is turned off, then the temperature control device 7 is turned off.

[0070] Please see Figure 3 , Figure 6 and Figure 7 The present invention also proposes a control method for a swimming pool system, the swimming pool system including a sand filter 8 for pool water filtration, the control method of the swimming pool system including a sand filter backwashing step, the sand filter backwashing step including: S400: Identify whether the backwashing conditions are met, the backwashing conditions including the requirements for the pressure detection value of the sand tank 8; S410: If satisfied, begin executing the specific backwashing steps, and after completion, return to the step of identifying whether the backwashing conditions are met.

[0071] This technical solution achieves precise backwash control based on the actual operating status of the sand filter 8 by linking the trigger conditions for backwashing to the pressure detection value of the sand filter 8. During long-term filtration, as impurities trapped in the filter media gradually increase, the pressure at the inlet of the sand filter 8 rises while the pressure at the outlet decreases. When either the inlet or outlet pressure reaches a threshold, the pressure detection requirement for the sand filter 8 is met, and the backwashing procedure is initiated when other backwashing conditions are also met. This method, using pressure parameters as the basis for judgment, more accurately reflects the degree of clogging in the sand filter 8 compared to traditional timed backwashing. It avoids the waste of water and energy caused by premature backwashing and prevents the filtration effect from being affected by late backwashing, ensuring that the sand filter 8 always maintains good filtration performance, extending the service life of the filter media, and improving the economy and reliability of the swimming pool system. After executing the specific backwashing steps, returning to the step of identifying backwashing conditions allows for real-time monitoring of the sand filter 8's status, enabling timely backwashing when the conditions are met again.

[0072] The pressure detection value requirement for sand tank 8 includes at least one of the following: the maximum pressure requirement at the inlet end of sand tank 8 or the minimum pressure requirement at the outlet end of sand tank 8. Specifically, in this embodiment, the pressure detection value requirement for sand tank 8 includes the maximum pressure requirement at the inlet end of sand tank 8. As needed, the maximum pressure requirement at the inlet end of sand tank 8 is in the range of 0.05MPa to 0.25MPa. Preferably, the maximum pressure requirement at the inlet end is set to 0.2MPa.

[0073] In one embodiment, the pool system includes a pool cover 11 and a drain valve 9 for draining pool water, the sand tank 8 includes a valve and a sand tank head, and the backwashing conditions include at least one of the following: the pool cover 11 is not unfolded, the drain valve 9 is closed, the valve is in an open or closed state, and the sand tank head is open.

[0074] This technical solution ensures that the backwashing process is carried out in a safe and suitable environment by using the states of the pool cover 11, the drain valve 9, the valve, and the sand tank head as conditions for backwashing the sand tank 8.

[0075] For example, if the pool cover 11 is not unfolded, that is, the pool cover 11 is not in the unfolded state or is in the unfolded state, backwashing is performed during non-use periods of the pool to avoid a temporary increase in impurities in the pool water that would affect the user experience. The drain valve 9 is closed to ensure that the pool water is not in the drained state, and the pool water can be normally circulated for backwashing. The valve is not in operation. The correct state of the valve and sand tank head is the basis for the smooth progress of the backwashing process. The comprehensive judgment of these conditions can effectively improve the reliability and safety of the backwashing operation.

[0076] In one embodiment, the backwashing conditions include preconditions and postconditions. The preconditions include at least one of the following: the pool cover 11 is not unfolded, the drain valve 9 is closed, the valve is in an open or closed state, and the sand tank head is open. The postconditions include a requirement for the pressure detection value of the sand tank 8.

[0077] If either the precondition or postcondition is not met, backwashing will not start and no action will be taken. The precondition and postcondition can be executed sequentially or in parallel.

[0078] In one embodiment, the step of starting specific backwashing steps if the conditions are met, and returning to the step of identifying whether the backwashing conditions are met after completion, includes: S411: If satisfied, proceed to the waiting period; S412: If the waiting time is interrupted, return to the step of identifying whether the anti-washing condition is met; if the waiting time ends, start executing the specific anti-washing steps, and return to the step of identifying whether the anti-washing condition is met after execution.

[0079] If the pressure detection value of sand tank 8 does not meet the conditions during the waiting time, the system will be interrupted and return to the step of identifying backwashing conditions. This avoids the problem of repeatedly sending instructions to execute specific backwashing steps due to the pressure detection value of sand tank 8 being in a critical state, as well as sending instructions to execute specific backwashing steps due to pressure fluctuations causing temporary pressure satisfaction. If the waiting time ends, backwashing will be executed normally. This design increases the flexibility of the system and also prevents backwashing from being started at an inappropriate time.

[0080] The waiting time can be set as needed, and if at least one of the following conditions is not met: the pool cover 11 is not unfolded, the drain valve 9 is closed, or the sand cylinder head is open, the waiting time will be interrupted.

[0081] In one embodiment, the pool system includes a water pump 3 for pool water circulation, and further includes: S409: Identify whether the water pump 3 is turned on; if so, turn off the water pump 3.

[0082] This technical solution ensures that the backwashing operation begins safely by shutting off water pump 3 before performing specific backwashing steps. Shutting off water pump 3 prevents water flow from interfering with valve switching and other operations during the backwashing process, and prevents equipment damage or poor backwashing results due to excessive water pressure, thus guaranteeing the smooth progress of the backwashing step.

[0083] In one embodiment, the sand tank 8 includes a valve, and the specific backwashing step includes: S4121: Control the valve to the backwash position and control the water pump 3 to work in order to backwash the sand tank 8; S4122: After turning off the water pump 3 and controlling the valve to the forward washing position, control the water pump 3 to work to forward wash the sand tank 8; S4123: Turn off the water pump 3 and control the valve to the initial position.

[0084] This technical solution effectively cleans the sand filter 8 by employing a backwash followed by a forward wash, and by shutting off the water pump 3 between each step to switch valve positions. During backwashing, the water flow reverses to flush the filter media inside the sand filter 8, removing impurities. Forward washing, on the other hand, flushes the filter media in the forward direction, removing any remaining impurities and loose filter media particles from the backwash. Finally, the valves are returned to their initial positions, ensuring that the sand filter 8 can perform its filtration function normally after backwashing. The entire process is logically clear and restores the filtration performance of the sand filter 8.

[0085] The initial position is the valve position before backwashing. In a specific embodiment, during the forward and backwashing process, the outlet of the sand tank 8 is closed, and the sand tank 8 is rinsed with pool water with lower cleanliness in the swimming pool 1. The sewage is discharged through the sewage pipe to improve the water resource utilization rate.

[0086] Please see Figure 8 and Figure 9 The present invention also proposes a swimming pool system. In one embodiment of the present invention, the swimming pool system includes: a swimming pool 1, a circulation pipe 2, a water pump 3, a temperature control device 7, a temperature detector 10, and a controller 6.

[0087] The two ends of the circulation pipe 2 are used to connect the swimming pool 1; the water pump 3 is installed in the circulation pipe 2 for circulating the water in the swimming pool 1; the temperature control device 7 is installed in the circulation pipe 2 for regulating the water temperature in the swimming pool 1; the temperature detector 10 is used to detect the water temperature in the swimming pool 1; and the controller 6 is used to electrically connect the water pump 3, the temperature control device 7 and the temperature detector 10.

[0088] The controller 6 includes a memory 1005, a processor 1001, and a program for a control method of the swimming pool system stored in the memory 1005 and executable on the processor 1001. When the program for the control method of the swimming pool system is executed by the processor 1001, it implements the steps of the control method of the swimming pool system. The specific content of the control method of the swimming pool system is as described in the above embodiments. Since the swimming pool system adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0089] This technical solution organically integrates swimming pool 1, circulation pipe 2, water pump 3, temperature control device 7, temperature detector 10, and controller 6 to construct an intelligent swimming pool water temperature regulation system. When the temperature detector 10 detects in real time that the pool water temperature of swimming pool 1 deviates from the preset suitable range, it immediately transmits the temperature signal to the controller 6. As the core of the entire system, the controller 6's internal processor 1001 calls the swimming pool system control method program stored in memory 1005 to quickly analyze and judge the received temperature data. If the pool water temperature does not meet the requirements, the controller 6 will instruct the temperature control device 7 to start the heating or cooling function, while controlling the water pump 3 to maintain normal operation, causing the pool water to continuously flow in the circulation pipe 2 so that the water temperature gradually reaches the required level; thereby achieving precise and dynamic regulation of the pool water temperature and providing users with a consistently comfortable swimming environment.

[0090] Specifically, temperature detectors 10 can be installed at one or more points in the swimming pool 1 and the circulation pipe 2 to detect the water temperature of the swimming pool 1. Two water pumps 3 are connected in parallel on the circulation pipe 2, one of which can be used as a backup water pump 3. The temperature control device 7 includes two temperature regulators connected in parallel on the circulation pipe 2. Specifically, both temperature regulators can be used for cooling and heating, or one can be used for heating and the other for cooling, as needed. In this embodiment, the temperature control device 7 includes a heat pump 71 and a solar heater 72 connected in parallel. The salt machine includes an electrolytic cell 4 connected in the circulation pipe 2. The circulation pipe 2 is also equipped with a sand filter 8 for filtering the pool water. Flow rate sensors are installed at both the heat pump 71 and the electrolytic cell 4 to detect the water flow rate, facilitating fault detection. Multiple control valves 5 are installed on the circulation pipe 2 to control the opening and closing of the pipeline, which can realize the control of the connection and disconnection of the water pump 3, the temperature control device 7, the electrolytic cell 4, and the sand filter 8 with the circulation pipe 2. A water supply pipe 21 is installed on the circulation pipe 2. The control valve 5 includes a water supply valve 51 located on the water supply pipe 21, which controls the supply of water to the swimming pool 1. The drain valve 9 is used to drain the water in the swimming pool 1, and the pool cover 11 is used to close the swimming pool 1 after being unfolded.

[0091] like Figure 8As shown, the controller 6 may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk storage device. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0092] Those skilled in the art will understand that Figure 8 The structure shown does not constitute a limitation on controller 6 and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0093] The memory 1005, which serves as a storage medium, may include an operating system, a data storage module, a network communication module, a user interface 1003 module, and a control program based on the pool system.

[0094] In the controller 6, the network interface 1004 is mainly used for data communication with the network server; the user interface 1003 is mainly used for data interaction with the user; the processor 1001 and the memory 1005 in the controller 6 can be set in the controller 6, and the controller 6 uses the processor 1001 to call the control program of the swimming pool system stored in the memory 1005 to regulate the device.

[0095] Please see Figure 8 and Figure 9 The present invention also proposes a swimming pool system. In another embodiment of the present invention, the swimming pool system includes: a swimming pool 1, a circulation pipe 2, a water pump 3, a sand filter 8, a pressure detector 81, and a controller 6. Either of the above two embodiments may be used, or both may be used simultaneously.

[0096] The two ends of the circulation pipe 2 are used to connect the swimming pool 1; the water pump 3 is installed in the circulation pipe 2 for circulating the water in the swimming pool 1; the sand filter 8 is installed in the circulation pipe 2 for filtering the water in the swimming pool 1; the pressure detector 81 is used to detect the water pressure at the sand filter 8; the controller 6 is used to electrically connect the water pump 3, the sand filter 8 and the pressure detector 81.

[0097] The controller 6 includes a memory 1005, a processor 1001, and a program for a control method of the swimming pool system stored in the memory 1005 and executable on the processor 1001. When the program for the control method of the swimming pool system is executed by the processor 1001, it implements the steps of the control method of the swimming pool system. The specific content of the control method of the swimming pool system is as described in the above embodiments. Since the swimming pool system adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0098] This technical solution uses a pressure detector 81 to monitor the water pressure at the sand filter 8 in real time, providing the controller 6 with crucial operational data. During long-term filtration, the filter media inside the sand filter 8 gradually traps impurities in the water, increasing resistance to water flow and consequently raising the water pressure. The controller 6, by receiving the pressure signal from the sand filter inlet from the pressure detector 81, can accurately determine the degree of blockage in the sand filter 8. When the pressure reaches a preset cleaning threshold, meeting the backwashing conditions, the controller 6 triggers the backwashing program for the sand filter 8 without manual intervention. During backwashing, the controller 6 coordinates the operation of the water pump 3 and the switching of relevant valves in the sand filter 8, changing the water flow direction and using reverse water flow to flush the filter media in the sand filter 8, discharging the trapped impurities and restoring the filtration performance of the sand filter 8. This pressure feedback-based control mechanism not only ensures that the sand filter 8 is always in good filtration condition, improving the stability of pool water quality, but also greatly reduces the workload of manual inspection and operation, improving the automation level and efficiency of the entire pool system. It also avoids problems such as decreased filtration effect or equipment damage caused by human error or untimely operation.

[0099] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A control method for a swimming pool system, the swimming pool system comprising a water pump for pool water circulation and a temperature control device for pool water temperature regulation, characterized in that, The control method for the swimming pool system includes a temperature control priority step or a circulation priority step. The temperature control priority steps include: Identify whether the water pump is turned on; If the water pump is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device and the water pump, and return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device. If the water pump is turned off, turn the water pump on and then determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device and the water pump, and return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device. The cycle priority steps include: Identify whether the water pump is turned on; If the water pump is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device and return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device.

2. The control method for the swimming pool system as described in claim 1, characterized in that: The step of shutting down the temperature control device and the water pump if the pool water temperature reaches the required level, and returning to the step of identifying whether the water pump is turned on, includes: if the pool water temperature reaches the required level, shutting down the temperature control device and the water pump; after a first shutdown time has elapsed, returning to the step of identifying whether the water pump is turned on; and / or, The step of turning on the water pump if it is turned off and then determining whether the pool water temperature has reached the required level includes: turning on the water pump if it is turned off, and then determining whether the pool water temperature has reached the required level after the water pump has been running for a first time.

3. The control method for the swimming pool system as described in claim 2, characterized in that: The step of turning on the water pump if it is turned off, and then determining whether the pool water temperature has reached the required level after the water pump has been running for the first time, includes: If the water pump is turned off, turn the water pump on, control the water pump to work at the set speed, and after the water pump has been running for the first time, determine whether the pool water temperature has reached the requirement.

4. The control method for the swimming pool system as described in claim 1, characterized in that, The swimming pool system includes a first component and a second component. The control method for the swimming pool system includes a fault detection step, which includes: Obtain the water flow detection status at the first component and the second component; If the detection status of both the first component and the second component is abnormal, the speed of the water pump is adjusted to the maximum. After the set test time has elapsed, the water flow detection status at the first component and the second component is acquired again. If the detection status of the first component and the second component is still abnormal, a water leakage fault is reported, and the temperature control device and the water pump are controlled to stop working.

5. The control method for the swimming pool system as described in claim 4, characterized in that, After the step of re-acquiring the water flow detection status at the first component and the second component, the method further includes: If the detection status of the first component and the second component is not both abnormal, then after controlling the water pump to resume its original speed, the water flow detection status at the first component and the second component is acquired again. If the detection status of at least one of the first component and the second component is abnormal, a water shortage fault will be reported, and a reminder will be given to increase the water pump flow rate or to check the part whose detection status is abnormal.

6. The control method for the swimming pool system as described in claim 4, characterized in that, After the step of obtaining the water flow detection status at the first component and the second component, the method further includes: If the detection status of either the first component or the second component is abnormal, a water shortage fault will be reported, and a reminder will be given to increase the water pump flow rate or to check the part whose detection status is abnormal.

7. The control method for the swimming pool system as described in claim 4, characterized in that, The step of obtaining the water flow detection status at the first component and the second component includes obtaining the water flow velocity at the first component and the second component.

8. The control method for the swimming pool system as described in claim 1, characterized in that, The steps for determining whether the pool water temperature has reached the required level include: In heating mode, determine whether the pool water temperature is greater than or equal to the sum of the set temperature and the first temperature margin; or, In cooling mode, determine whether the pool water temperature is less than or equal to the difference between the set temperature and the second temperature margin; Wherein, the set temperature, the first temperature margin, and the second temperature margin are all set constants.

9. The control method for the swimming pool system as described in claim 1, characterized in that, If the water pump is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device and return to the step of identifying whether the water pump is turned on; otherwise, the step of turning on the temperature control device includes: If the water pump is turned on, determine whether the pool water temperature has reached the required level: if the pool water temperature has reached the required level, turn off the temperature control device, and after a second shutdown time, return to the step of identifying whether the water pump is turned on; otherwise, turn on the temperature control device, and after a second running time, return to the step of determining whether the pool water temperature has reached the required level.

10. A method for controlling a swimming pool system, the swimming pool system comprising a sand filter for pool water filtration, characterized in that, The control method for the swimming pool system includes a sand filter backwashing step, which includes: Identify whether the backwashing conditions are met, including requirements for the pressure detection value of the sand tank; If the conditions are met, the specific backwashing steps are executed. After the backwashing is completed, the process returns to the step of identifying whether the backwashing conditions are met.

11. The control method for a swimming pool system as described in claim 10, wherein the swimming pool system includes a pool cover and a drain valve for draining pool water, and the sand filter includes a valve and a sand filter head, characterized in that: The backwashing conditions include at least one of the following: the pool cover is not unfolded, the drain valve is closed, the valve is in an open or closed state, and the sand tank head is open.

12. The control method for the swimming pool system as described in claim 10, characterized in that: If the conditions are met, the specific backwashing steps are executed, and after execution, the process returns to the step of identifying whether the backwashing conditions are met, including: If the condition is met, then proceed to the waiting period; If the waiting time is interrupted, return to the step of identifying whether the anti-washing condition is met; if the waiting time ends, start executing the specific anti-washing steps, and return to the step of identifying whether the anti-washing condition is met after execution.

13. The control method for a swimming pool system as described in claim 10, wherein the swimming pool system includes a water pump for pool water circulation, characterized in that, Before starting the specific backwashing steps, the following is also included: The system identifies whether the water pump is on; if so, it shuts down the water pump.

14. The control method for the swimming pool system as described in claim 13, characterized in that, The sand tank includes a valve, and the specific backwashing steps include: Control the valve to the backwash position and control the water pump to backwash the sand tank; After turning off the water pump and controlling the valve to the forward washing position, the water pump is then turned on to perform a forward wash on the sand tank. Turn off the water pump and control the valve to its initial position.

15. A swimming pool system, comprising: A swimming pool, a circulation pipe, a water pump, and a controller, wherein both ends of the circulation pipe are connected to the swimming pool; The water pump is installed in the circulation pipe for circulating swimming pool water; the system is characterized in that it includes: A temperature control device, installed in the circulation pipe, is used for regulating the temperature of the swimming pool water; and, Temperature detector, used to detect the temperature of swimming pool water; The controller is used to electrically connect the water pump, the temperature control device, and the temperature detector; the controller includes a memory, a processor, and a program for a control method of the swimming pool system stored in the memory and executable on the processor, wherein the program for the control method of the swimming pool system, when executed by the processor, implements the steps of the control method of the swimming pool system as described in any one of claims 1 to 9; and / or, The system includes: A sand filter, installed in the circulation pipe, is used for filtering swimming pool water; A pressure detector is used to detect the water pressure at the sand tank; and, The controller is used to electrically connect the water pump, the sand filter, and the pressure detector; the controller includes a memory, a processor, and a program for a control method of the swimming pool system stored in the memory and executable on the processor, wherein when the program for the control method of the swimming pool system is executed by the processor, it implements the steps of the control method of the swimming pool system as described in any one of claims 10 to 14.

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