Control method and device of water heater, electronic equipment and storage medium

Abstract

The invention discloses a control method and device of a water heater, electronic equipment and a storage medium. The invention relates to the technical field of smart home, and the method comprises the steps that the outlet water temperature and operation parameters of a water heater are determined, and the operation parameters comprise the heater power and the water pump rotating speed; determining whether the outlet water temperature is equal to a preset temperature value; if the outlet water temperature is not equal to the preset temperature value, determining a heater power adjusting scheme and / or a water pump rotating speed adjusting scheme based on the outlet water temperature and the preset temperature value; and adjusting the operation parameters based on the heater power adjusting scheme and / or the water pump rotating speed adjusting scheme so as to adjust the water outlet temperature of the water heater. According to the technical scheme, the operation parameters of the water heater can be adjusted through at least one adjusting scheme so as to adjust the outlet water temperature of the water heater, rapid constant temperature of the water heater can be achieved, and the use experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the field of smart home technology, and in particular to a control method, device, electronic equipment and storage medium for a water heater. Background Art

[0002] With the development of society and the improvement of residents' living standards, people have higher and higher demands on the performance of household appliances, for example, the constant temperature performance of household water heaters.

[0003] At present, the constant temperature control method for household water heaters is water servo control. For example, the water flow rate of the cold water pipe is determined according to the outlet water temperature. If the outlet water temperature is high, the opening of the cold water pipe is increased, and if the outlet water temperature is low, the opening of the cold water pipe is reduced. However, the constant temperature rate of the water servo control method is low, and it is impossible to achieve rapid constant temperature of the water heater, which affects the user experience. Secondly, the water servo control method is subject to the opening and closing degree of the cold water pipe, and the cold water flow adjustment ability is limited, and it is impossible to accurately and comprehensively control the outlet water temperature of the water heater. Summary of the invention

[0004] The present invention provides a control method, device, electronic device and storage medium for a water heater, aiming to achieve rapid constant temperature control of the water heater and improve the user experience.

[0005] According to one aspect of the present invention, a method for controlling a water heater is provided, the method comprising:

[0006] Determine the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include heater power and water pump speed;

[0007] Determine whether the outlet water temperature is equal to the preset temperature value;

[0008] If the outlet water temperature is not equal to the preset temperature value, determining an adjustment scheme for the heater power and / or an adjustment scheme for the water pump speed based on the outlet water temperature and the preset temperature value;

[0009] The operating parameters are adjusted based on the heater power adjustment scheme and / or the water pump speed adjustment scheme to adjust the outlet water temperature of the water heater.

[0010] Optionally, determining whether the outlet water temperature is equal to a preset temperature value includes: determining whether the difference between the outlet water temperature and the preset temperature value is greater than a first temperature threshold; if the difference between the outlet water temperature and the preset temperature value is greater than the first temperature threshold, determining that the outlet water temperature is not equal to the preset temperature value; if the difference between the outlet water temperature and the preset temperature value is less than or equal to the first temperature threshold, determining that the outlet water temperature is equal to the preset temperature value.

[0011] Optionally, the adjustment scheme of the heater power includes an adjustment direction and an adjustment scale of the heater power, the adjustment direction of the heater power includes an increasing direction and a decreasing direction, the adjustment scale of the heater power includes a first power adjustment threshold and a second power adjustment threshold, wherein the first power adjustment threshold is greater than the second power adjustment threshold; the adjustment scheme of the water pump speed includes an adjustment direction of the water pump speed, the adjustment direction of the water pump speed includes an increasing direction and a decreasing direction.

[0012] Optionally, an adjustment scheme for the heater power is determined based on the outlet water temperature and a preset temperature value, including: determining whether the outlet water temperature is greater than the preset temperature value; if the outlet water temperature is greater than the preset temperature value, determining that the adjustment direction of the heater power is a decreasing direction, and determining the adjustment scale of the heater power based on the difference between the outlet water temperature and the preset temperature value; if the outlet water temperature is less than the preset temperature value, determining that the adjustment direction of the heater power is an increasing direction, and determining the adjustment scale of the heater power based on the difference between the outlet water temperature and the preset temperature value.

[0013] Optionally, determining the adjustment scale of the heater power based on the difference between the outlet water temperature and the preset temperature value includes: determining whether the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold; if the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to the second temperature threshold, determining the adjustment scale of the heater power to be the first power adjustment threshold; if the absolute value of the difference between the outlet water temperature and the preset temperature value is less than the second temperature threshold, determining the adjustment scale of the heater power to be the second power adjustment threshold.

[0014] Optionally, a water pump speed adjustment scheme is determined based on the outlet water temperature and a preset temperature value, including: determining whether the outlet water temperature is greater than the preset temperature value; if the outlet water temperature is greater than the preset temperature value, determining that the water pump speed adjustment direction is an increasing direction; if the outlet water temperature is less than the preset temperature value, determining that the water pump speed adjustment direction is a decreasing direction.

[0015] Optionally, the operating parameters are adjusted based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed, including: updating the heater power based on the adjustment direction and adjustment scale of the heater power and / or updating the water pump speed based on the adjustment direction and preset speed value of the water pump speed, and determining whether the outlet water temperature of the water heater is equal to the preset temperature value after a preset time period; if the outlet water temperature of the water heater is equal to the preset temperature value, controlling the water heater to operate based on the updated operating parameters; if the outlet water temperature of the water heater is not equal to the preset temperature value, updating the adjustment direction of the water pump speed, the adjustment direction and adjustment scale of the heater power based on the outlet water temperature and the preset temperature value, and returning to execute the steps of updating the heater power based on the adjustment direction and adjustment scale of the heater power and / or updating the water pump speed based on the adjustment direction and preset speed value of the water pump speed.

[0016] Optionally, after controlling the water heater to operate based on the updated operating parameters, it also includes: determining whether the updated operating parameters meet the noise-free condition; if the updated operating parameters do not meet the noise-free condition, adjusting the updated operating parameters to reduce the noise of the water heater.

[0017] According to another aspect of the present invention, there is provided a control device for a water heater, the device comprising:

[0018] An acquisition module, used to determine the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include heater power and water pump speed;

[0019] A judgment module is used to determine whether the outlet water temperature is equal to a preset temperature value;

[0020] a determination module, configured to determine, if the outlet water temperature is not equal to a preset temperature value, an adjustment scheme for the heater power and / or an adjustment scheme for the water pump speed based on the outlet water temperature and the preset temperature value;

[0021] The execution module is used to adjust the operating parameters based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed to adjust the outlet water temperature of the water heater.

[0022] According to another aspect of the present invention, there is provided an electronic device, the electronic device comprising:

[0023] at least one processor; and a memory communicatively coupled to the at least one processor;

[0024] The memory stores a computer program that can be executed by at least one processor, and the computer program is executed by at least one processor so that the at least one processor can execute the control method of the water heater described in any embodiment of the present invention.

[0025] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the water heater control method described in any embodiment of the present invention when executed.

[0026] The technical solution of the present invention determines the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include the heater power and the water pump speed; determines whether the outlet water temperature is equal to the preset temperature value; if the outlet water temperature is not equal to the preset temperature value, determines the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed based on the outlet water temperature and the preset temperature value; adjusts the operating parameters based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed to adjust the outlet water temperature of the water heater. The present invention uses at least one adjustment scheme to adjust the operating parameters of the water heater to adjust the outlet water temperature of the water heater, which can achieve rapid constant temperature of the water heater and improve the user experience. It solves the problem that the constant temperature rate of the water servo control method is low, the rapid constant temperature of the water heater cannot be achieved, and the user experience is affected, and the water servo control method is subject to the opening and closing degree of the cold water pipe, and the cold water flow regulation ability is limited, and the outlet water temperature of the water heater cannot be accurately and comprehensively controlled.

[0027] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 is a flow chart of a method for controlling a water heater provided in Embodiment 1;

[0030] Figure 2 is a flow chart of a water heater control method provided in Embodiment 2;

[0031] Figure 3 is a schematic structural diagram of a water heater control device provided in Embodiment 3;

[0032] Figure 4 It is a structural schematic diagram of an electronic device provided in Example 4. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Embodiment 1

[0036] Figure 1 This is a flow chart of a water heater control method provided in Example 1. This embodiment is applicable to the rapid constant temperature of the water heater, the reduction of water heater noise, etc. The method can be executed by the water heater control device provided by the present invention. The device can be implemented in the form of hardware and / or software. In a specific embodiment, the device can be integrated into an electronic device. The following embodiments will be described by taking the device integrated into an electronic device as an example. Figure 1 , the method specifically comprises the following steps:

[0037] S101, determining the outlet water temperature and operating parameters of the water heater.

[0038] Among them, the outlet water temperature of the water heater can be understood as the temperature of the water in the outlet pipe of the water heater, and the operating parameters include the heater power and the water pump speed. The heater power can be understood as the current power of the heater in the water heater used to heat the water in the water tank. The water pump speed can be understood as the number of revolutions per minute of the water pump shaft, which is used to adjust the inlet and outlet water flow of the water heater. Specifically, the higher the heater power, the higher the heating efficiency of the water heater, that is, the higher the outlet water temperature of the water heater, the lower the heater power, the lower the heating efficiency of the water heater, that is, the lower the outlet water temperature of the water heater, the higher the water pump speed, the greater the inlet and outlet water flow of the water heater, and the lower the water pump speed, the smaller the inlet and outlet water flow of the water heater.

[0039] Specifically, the water heater in this embodiment is provided with a temperature sensor and a flow sensor, the temperature sensor can be used to obtain the temperature of the water output from the water outlet pipe of the water heater, and the flow sensor can be used to obtain the inlet and outlet water flow of the water heater. Furthermore, the current power of the heater can be determined based on the main control board (equivalent to the processor) of the water heater.

[0040] Exemplarily, determining the water outlet temperature and operating parameters of the water heater can be understood as determining the water outlet temperature of the water heater, the current heater power and the current water pump speed, wherein the current heater power can be understood as the heater power currently being used by the water heater, and the current water pump speed can be understood as the water pump speed currently being used by the water heater.

[0041] The advantage of this setting is that real-time data of the water heater can be obtained to adjust the water outlet temperature of the water heater.

[0042] S102: Determine whether the outlet water temperature is equal to a preset temperature value.

[0043] The preset temperature value may be understood as a water temperature of the water heater output that is preset based on user requirements, for example, 40° C., 42° C., etc., which is not limited in this embodiment.

[0044] Specifically, if the outlet water temperature is not equal to the preset temperature value, S103 is executed. If the outlet water temperature is equal to the preset temperature value, it is proved that the outlet water temperature of the water heater is very suitable, and the water heater will be controlled to continue to operate with the current operating parameters.

[0045] The advantage of this setting is that it can determine whether the water outlet temperature of the water heater needs to be adjusted based on the water outlet temperature and the preset temperature value. If the water outlet temperature of the water heater does not need to be adjusted, the water heater is controlled to continue to operate with the current operating parameters, which can save the work tasks of the main control board.

[0046] S103: Determine a heater power adjustment scheme and / or a water pump speed adjustment scheme based on the outlet water temperature and a preset temperature value.

[0047] Among them, the adjustment plan of the heater power includes increasing the current heater power according to the preset power value and reducing the current heater power according to the preset power value. The adjustment plan of the water pump speed includes increasing the current water pump speed according to the preset speed and reducing the current water pump speed according to the preset speed. The preset power value and the preset speed can be set and adjusted according to parameters such as water temperature regulation requirements, water temperature regulation strength, and water temperature regulation accuracy. This embodiment does not limit this.

[0048] Determining the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed based on the outlet water temperature and the preset temperature value can be understood as determining the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed based on the relative relationship between the outlet water temperature and the preset temperature value. Specifically, when the outlet water temperature is greater than the preset temperature value, it proves that the outlet water temperature needs to be lowered and the inlet and outlet water flow rates need to be increased. The adjustment scheme of the heater power is determined to be to lower the current heater power according to the preset power value, and the adjustment scheme of the water pump speed is to increase the current water pump speed according to the preset speed. When the outlet water temperature is less than the preset temperature value, it proves that the outlet water temperature needs to be increased and the inlet and outlet water flow rates need to be reduced. The adjustment scheme of the heater power is determined to be to lower the current heater power according to the preset power value, and the adjustment scheme of the water pump speed is to increase the current water pump speed according to the preset speed.

[0049] For example, assuming that the preset temperature value is 40°C, the preset power value is 300W / s, and the preset speed is a duty cycle of 5%, if the outlet water temperature is greater than 40°C, the adjustment plan for the heater power is to reduce the power value by 300W / s, and the adjustment plan for the water pump speed is to increase the duty cycle by 5%; if the outlet water temperature is less than 40°C, the adjustment plan for the heater power is to increase the power value by 300W / s, and the adjustment plan for the water pump speed is to reduce the duty cycle by 5%.

[0050] The adjustment scheme for adjusting the outlet water temperature of the water heater in the present invention can be any one of the adjustment scheme of the heater power and the adjustment scheme of the water pump speed, or can be the adjustment scheme of the heater power and the adjustment scheme of the water pump speed. The advantage of such a setting is that the adjustment scheme can be determined according to the actual situation of the water heater, broadening the applicability of the water temperature adjustment method of the water heater. Secondly, the water temperature of the water heater can be adjusted together based on the adjustment scheme of the heater power and the adjustment scheme of the water pump speed, which can improve the water temperature adjustment rate and achieve the purpose of rapid constant temperature of the water heater.

[0051] S104: Adjust operating parameters based on the heater power adjustment scheme and / or the water pump speed adjustment scheme to adjust the outlet water temperature of the water heater.

[0052] Exemplarily, assume that the adjustment schemes are the adjustment scheme of the heater power and the adjustment scheme of the water pump speed, wherein the adjustment scheme of the heater power is to reduce the power value according to 300W / s, and the adjustment scheme of the water pump speed is to increase the duty cycle according to 5%. The heater power and the water pump speed will be adjusted sequentially and cyclically according to the adjustment scheme of the heater power and the adjustment scheme of the water pump speed, and the water outlet temperature of the water heater will be re-obtained after each adjustment of the operating parameters. If the water outlet temperature of the water heater is equal to the preset temperature value, it proves that the water heater has been kept at a constant temperature, stop adjusting the operating parameters of the water heater, and control the water heater to operate based on the adjusted operating parameters. If the water outlet temperature of the water heater is greater than the preset temperature value, it proves that the water outlet temperature of the water heater is still too high, and it is necessary to continue to adjust the operating parameters of the water heater until the water outlet temperature of the water heater is equal to the preset temperature value.

[0053] It is worth noting that the water temperature adjustment process is a dynamic process. If the outlet water temperature of the water heater during the adjustment process is lower than the preset temperature value, the water heater operating parameter adjustment plan will be re-determined. For example, the heater power adjustment plan is to increase the power value by 300W / s, and the water pump speed adjustment plan is to reduce the duty cycle by 5%, and the water heater operating parameters are adjusted based on the new adjustment plan.

[0054] The technical solution of this embodiment is to determine the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include the heater power and the water pump speed; determine whether the outlet water temperature is equal to the preset temperature value; if the outlet water temperature is not equal to the preset temperature value, determine the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed based on the outlet water temperature and the preset temperature value; adjust the operating parameters based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed to adjust the outlet water temperature of the water heater. This embodiment uses at least one adjustment scheme to adjust the operating parameters of the water heater to adjust the outlet water temperature of the water heater, which can achieve rapid constant temperature of the water heater and improve the user experience. It solves the problem that the constant temperature rate of the water servo control method is low, the rapid constant temperature of the water heater cannot be achieved, and the user experience is affected, and the water servo control method is subject to the opening and closing degree of the cold water pipe, and the cold water flow adjustment ability is limited, and the outlet water temperature of the water heater cannot be accurately and comprehensively controlled.

[0055] Embodiment 2

[0056] Figure 2 This is a flow chart of a water heater control method provided in Example 2. This embodiment is applicable to the rapid constant temperature of the water heater, the reduction of water heater noise, etc. The method can be executed by the water heater control device provided by the present invention. The device can be implemented in the form of hardware and / or software. In a specific embodiment, the device can be integrated into an electronic device. The following embodiments will be described by taking the device integrated into an electronic device as an example. Figure 2, the method specifically comprises the following steps:

[0057] S201, determining the water outlet temperature and operating parameters of the water heater.

[0058] Among them, the outlet water temperature of the water heater can be understood as the temperature of the water in the outlet pipe of the water heater, and the operating parameters include the heater power and the water pump speed. The heater power can be understood as the current power of the heater in the water heater used to heat the water in the water tank. The water pump speed can be understood as the number of revolutions per minute of the water pump shaft, which is used to adjust the inlet and outlet water flow of the water heater. Specifically, the higher the heater power, the higher the heating efficiency of the water heater, that is, the higher the outlet water temperature of the water heater, the lower the heater power, the lower the heating efficiency of the water heater, that is, the lower the outlet water temperature of the water heater, the higher the water pump speed, the greater the inlet and outlet water flow of the water heater, and the lower the water pump speed, the smaller the inlet and outlet water flow of the water heater.

[0059] Specifically, the water heater in this embodiment is provided with a temperature sensor and a flow sensor, the temperature sensor can be used to obtain the temperature of the water output from the water outlet pipe of the water heater, and the flow sensor can be used to obtain the inlet and outlet water flow of the water heater. Furthermore, the current power of the heater can be determined based on the main control board (equivalent to the processor) of the water heater.

[0060] Exemplarily, determining the water outlet temperature and operating parameters of the water heater can be understood as determining the water outlet temperature of the water heater, the current heater power and the current water pump speed, wherein the current heater power can be understood as the heater power currently being used by the water heater, and the current water pump speed can be understood as the water pump speed currently being used by the water heater.

[0061] Generally, the default power when the water heater starts running is 6000W / s, and the default duty cycle of the initial speed when the water pump starts is 50%. This parameter can be adjusted according to the use requirements of the water heater, and this embodiment does not limit this.

[0062] S202: Determine whether the difference between the outlet water temperature and the preset temperature value is greater than a first temperature threshold.

[0063] The first temperature threshold can be understood as a temperature tolerance, which can be 1°C, 2°C, etc. The specific value can be set according to the performance of the water heater and the temperature adjustment requirements. If the difference between the outlet water temperature and the preset temperature value is less than or equal to the first temperature threshold, the outlet water temperature is considered to be equal to the preset temperature value, and S203 is executed. If the difference between the outlet water temperature and the preset temperature value is greater than the first temperature threshold, the outlet water temperature is considered to be unequal to the preset temperature value, and S205 is executed.

[0064] The advantage of this setting is that it can reduce the constant temperature work performed by the water heater due to slight temperature changes, thereby reducing the work task of the water heater.

[0065] S203: Determine whether the outlet water temperature is equal to a preset temperature value.

[0066] S204: Control the water heater to operate based on the current heater power and the current water pump speed.

[0067] In S203-S204, determining that the outlet water temperature is equal to the preset temperature value can be understood as the outlet water temperature of the water heater is appropriate. There is no need to adjust the operating parameters of the water heater. By controlling the water heater to operate based on the current heater power and the current water pump speed, the outlet water temperature of the water heater can be maintained constant, thereby achieving the purpose of constant temperature.

[0068] S205: Determine whether the outlet water temperature is not equal to a preset temperature value.

[0069] Specifically, if the outlet water temperature is not equal to the preset temperature value, it can be understood that the outlet water temperature of the water heater does not meet the user's needs and needs to be adjusted.

[0070] S206: Determine a heater power adjustment scheme and / or a water pump speed adjustment scheme based on the water outlet temperature and a preset temperature value.

[0071] Among them, the adjustment scheme of the heater power includes the adjustment direction and adjustment scale of the heater power, the adjustment direction of the heater power includes an increasing direction and a decreasing direction, the adjustment scale of the heater power includes a first power adjustment threshold and a second power adjustment threshold, wherein the first power adjustment threshold is greater than the second power adjustment threshold; the adjustment scheme of the water pump speed includes the adjustment direction of the water pump speed, and the adjustment direction of the water pump speed includes an increasing direction and a decreasing direction.

[0072] The advantage of this setting is that different adjustment scales can be determined according to the size of the temperature difference. If the temperature difference is large, the operating parameters of the water heater are adjusted significantly. If the temperature difference is small, the operating parameters of the water heater are adjusted slightly to achieve the purpose of rapid constant temperature of the water heater.

[0073] A heater power adjustment scheme is determined based on the outlet water temperature and a preset temperature value, including: determining whether the outlet water temperature is greater than the preset temperature value; if the outlet water temperature is greater than the preset temperature value, it is considered that the outlet water temperature of the water heater is too high and needs to be lowered, and the adjustment direction of the heater power is determined to be a decreasing direction, and the adjustment scale of the heater power is determined based on the difference between the outlet water temperature and the preset temperature value; if the outlet water temperature is less than the preset temperature value, it is considered that the outlet water temperature of the water heater is too low and needs to be increased, and the adjustment direction of the heater power is determined to be an increasing direction, and the adjustment scale of the heater power is determined based on the difference between the outlet water temperature and the preset temperature value.

[0074] Specifically, determining the adjustment scale of the heater power based on the difference between the outlet water temperature and the preset temperature value includes: determining whether the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold; if the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to the second temperature threshold, determining the adjustment scale of the heater power to be the first power adjustment threshold; if the absolute value of the difference between the outlet water temperature and the preset temperature value is less than the second temperature threshold, determining the adjustment scale of the heater power to be the second power adjustment threshold.

[0075] Among them, the second temperature threshold can be understood as a standard for measuring the adjustment scale of the heater. If the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to the second temperature threshold, it proves that the outlet water temperature is significantly different from the preset temperature value, and it is necessary to significantly adjust the operating parameters of the water heater. The adjustment scale of the heater power is determined to be the first power adjustment threshold. If the absolute value of the difference between the outlet water temperature and the preset temperature value is less than the second temperature threshold, it proves that the outlet water temperature is slightly different from the preset temperature value, and only a slight adjustment of the operating parameters of the water heater is required. The adjustment scale of the heater power is determined to be the second power adjustment threshold.

[0076] Exemplarily, the first power adjustment threshold can be 500W / s, the second power adjustment threshold can be 300W / s, and the second temperature threshold can be 5°C. When the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to 5°C, the adjustment scale of the heater power is determined to be 500W / s. When the absolute value of the difference between the outlet water temperature and the preset temperature value is less than 5°C, the adjustment scale of the heater power is determined to be 300W / s.

[0077] An adjustment scheme for the water pump speed is determined based on the outlet water temperature and the preset temperature value, including: determining whether the outlet water temperature is greater than the preset temperature value; if the outlet water temperature is greater than the preset temperature value, it is considered that the outlet water temperature of the water heater is too high, and it is necessary to increase the inlet and outlet water flow rates, increase the input of cold water, so as to reduce the outlet water temperature of the water heater, and determine that the adjustment direction of the water pump speed is an increase direction; if the outlet water temperature is less than the preset temperature value, it is considered that the outlet water temperature of the water heater is too low, and it is necessary to reduce the inlet and outlet water flow rates, reduce the input of cold water, so as to increase the outlet water temperature of the water heater, and determine that the adjustment direction of the water pump speed is a decrease direction.

[0078] S207: Adjust the operating parameters based on the heater power adjustment scheme and / or the water pump speed adjustment scheme to adjust the outlet water temperature of the water heater.

[0079] Specifically, adjusting the operating parameters based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed includes: updating the heater power based on the adjustment direction and adjustment scale of the heater power and / or updating the water pump speed based on the adjustment direction and preset speed value of the water pump speed, and determining whether the outlet water temperature of the water heater is equal to the preset temperature value after a preset time period; if the outlet water temperature of the water heater is equal to the preset temperature value, controlling the water heater to operate based on the updated operating parameters; if the outlet water temperature of the water heater is not equal to the preset temperature value, updating the adjustment direction of the water pump speed, the adjustment direction and adjustment scale of the heater power based on the outlet water temperature and the preset temperature value, and returning to execute the step of updating the heater power based on the adjustment direction and adjustment scale of the heater power and / or updating the water pump speed based on the adjustment direction and preset speed value of the water pump speed.

[0080] In a specific example, if the outlet water temperature - the preset temperature value ≥ 5°C, the heater power is determined to be reduced by 500W / s, and the water pump speed is increased by 5% of the duty cycle. If 1°C < outlet water temperature - the preset temperature value < 5°C, the heater power is determined to be reduced by 300W / s, and the water pump speed is increased by 5% of the duty cycle. Similarly, if the preset temperature value - the outlet water temperature ≥ 5°C, the heater power is determined to be increased by 500W / s, and the water pump speed is reduced by 5% of the duty cycle. If 1°C < preset temperature value - outlet water temperature < 5°C, the heater power is determined to be increased by 300W / s, and the water pump speed is reduced by 5% of the duty cycle.

[0081] Furthermore, the adjustment plan can be to change the heater power and the water pump speed in sequence at certain time intervals. Taking 1s as an example, the power is adjusted in the 1st second, the water pump speed is adjusted in the 2nd second, the power is adjusted in the 3rd second, and the water pump speed is adjusted in the 4th second until the difference between the outlet water temperature and the preset temperature value changes. It is worth noting that the temperature sensor will detect the outlet water temperature of the water heater in real time so as to update the adjustment plan of the heater power and / or the water pump speed of the water heater in real time.

[0082] Optionally, after controlling the water heater to operate based on the updated operating parameters, it also includes: determining whether the updated operating parameters meet the noise-free condition; if the updated operating parameters do not meet the noise-free condition, adjusting the updated operating parameters to reduce the noise of the water heater.

[0083] If the water heater pump speed is high but the water flow is low, the water heater pump noise will be higher.

[0084] Specifically, the water heater control method of this embodiment can reduce the noise of the water heater after the water heater stably realizes the constant temperature function. Stably realizing the constant temperature function can be understood as the time when the outlet water temperature of the water heater is equal to the preset temperature value exceeds the preset time, such as 1 minute, 2 minutes, etc. The preset time can be set and adjusted according to the stable constant temperature standard, and this embodiment does not limit this.

[0085] The noise-free condition can be when the water pump flow rate is higher than 4L / min.

[0086] For example, after the water heater is stabilized and kept at a constant temperature, if the water pump flow rate is higher than 4L / min, the water heater is considered to be noiseless and can be operated at the current operating parameters. When the water pump flow rate is lower than 4L / min, the water heater has just completed the heating work and the current heater power is not the highest power, the heater power is increased according to the adjustment scale of 100W / s, and the water pump speed is reduced according to the duty cycle of 5% until the heater power is the highest power and the water outlet temperature is equal to the preset temperature value, and the water heater is controlled to operate with the adjusted operating parameters. When the water pump flow rate is lower than 4L / min, the water heater has just completed the cooling work and the duty cycle of the water pump speed is higher than 65%, the water pump duty cycle will be adjusted to 45% and run for 30s. Within 30s, the heater power will be reduced at 100W / s. After 30s, it is determined whether the outlet water temperature is equal to the preset temperature value. If it is, the water heater is controlled to run with the adjusted operating parameters. If not, the heater power will continue to be reduced at 100W / s for 30s and it is determined whether the outlet water temperature is equal to the preset temperature value until the outlet water temperature is equal to the preset temperature value.

[0087] The advantage of this setting is that it can reduce the noise of the water heater as much as possible while ensuring the constant temperature function of the water heater, thereby improving the user experience.

[0088] The technical solution of this embodiment is to determine the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include the heater power and the water pump speed; determine whether the difference between the outlet water temperature and the preset temperature value is greater than the first temperature threshold; if the difference between the outlet water temperature and the preset temperature value is less than or equal to the first temperature threshold, determine that the outlet water temperature is equal to the preset temperature value, and control the water heater to operate based on the current heater power and the current water pump speed; if the difference between the outlet water temperature and the preset temperature value is greater than the first temperature threshold, determine that the outlet water temperature is not equal to the preset temperature value, and determine the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed based on the outlet water temperature and the preset temperature value; adjust the operating parameters based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed to adjust the outlet water temperature of the water heater. This embodiment adopts at least one adjustment scheme to adjust the operating parameters of the water heater to adjust the outlet water temperature of the water heater, which can achieve rapid constant temperature of the water heater and improve the user experience. The problem that the water servo control method has a low constant temperature rate and cannot achieve rapid constant temperature of the water heater, affecting the user's experience; the water servo control method is subject to the opening and closing degree of the cold water pipe, the cold water flow regulation ability is limited, and the water outlet temperature of the water heater cannot be accurately and comprehensively controlled is solved.

[0089] Embodiment 3

[0090] Figure 3 Schematic diagram of the structure of a water heater control device provided in Example 3. Figure 3 As shown, the device includes: an acquisition module 301, a judgment module 302, a determination module 303 and an execution module 304.

[0091] The acquisition module 301 is used to determine the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include heater power and water pump speed.

[0092] The judgment module 302 is used to determine whether the outlet water temperature is equal to a preset temperature value.

[0093] The determination module 303 is used to determine an adjustment scheme for the heater power and / or a water pump speed based on the outlet water temperature and the preset temperature value if the outlet water temperature is not equal to the preset temperature value.

[0094] The execution module 304 is used to adjust the operating parameters based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed to adjust the outlet water temperature of the water heater.

[0095] Optionally, the judgment module 302 is specifically used to determine whether the difference between the outlet water temperature and the preset temperature value is greater than a first temperature threshold; if the difference between the outlet water temperature and the preset temperature value is greater than the first temperature threshold, it is determined that the outlet water temperature is not equal to the preset temperature value; if the difference between the outlet water temperature and the preset temperature value is less than or equal to the first temperature threshold, it is determined that the outlet water temperature is equal to the preset temperature value.

[0096] Optionally, the adjustment scheme of the heater power includes an adjustment direction and an adjustment scale of the heater power, the adjustment direction of the heater power includes an increasing direction and a decreasing direction, the adjustment scale of the heater power includes a first power adjustment threshold and a second power adjustment threshold, wherein the first power adjustment threshold is greater than the second power adjustment threshold; the adjustment scheme of the water pump speed includes an adjustment direction of the water pump speed, the adjustment direction of the water pump speed includes an increasing direction and a decreasing direction.

[0097] Optionally, the determination module 303 is specifically used to determine whether the outlet water temperature is greater than a preset temperature value; if the outlet water temperature is greater than the preset temperature value, the adjustment direction of the heater power is determined to be a decreasing direction, and the adjustment scale of the heater power is determined based on the difference between the outlet water temperature and the preset temperature value; if the outlet water temperature is lower than the preset temperature value, the adjustment direction of the heater power is determined to be an increasing direction, and the adjustment scale of the heater power is determined based on the difference between the outlet water temperature and the preset temperature value.

[0098] Optionally, the determination module 303 is specifically used to determine whether the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold; if the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to the second temperature threshold, then the adjustment scale of the heater power is determined to be the first power adjustment threshold; if the absolute value of the difference between the outlet water temperature and the preset temperature value is less than the second temperature threshold, then the adjustment scale of the heater power is determined to be the second power adjustment threshold.

[0099] Optionally, the determination module 303 is specifically used to determine whether the outlet water temperature is greater than the preset temperature value; if the outlet water temperature is greater than the preset temperature value, the adjustment direction of the water pump speed is determined to be an increasing direction; if the outlet water temperature is less than the preset temperature value, the adjustment direction of the water pump speed is determined to be a decreasing direction.

[0100] Optionally, the execution module 304 is specifically used to update the heater power based on the adjustment direction and adjustment scale of the heater power and / or update the water pump speed based on the adjustment direction and preset speed value of the water pump speed, and determine whether the water outlet temperature of the water heater is equal to the preset temperature value after a preset time period; if the water outlet temperature of the water heater is equal to the preset temperature value, control the water heater to operate based on the updated operating parameters; if the water outlet temperature of the water heater is not equal to the preset temperature value, update the adjustment direction of the water pump speed, the adjustment direction and adjustment scale of the heater power based on the outlet water temperature and the preset temperature value, and return to execute the steps of updating the heater power based on the adjustment direction and adjustment scale of the heater power and / or updating the water pump speed based on the adjustment direction and preset speed value of the water pump speed.

[0101] Optionally, the execution module 304 is also used to control the water heater to operate based on the updated operating parameters, and then determine whether the updated operating parameters meet the noise-free condition; if the updated operating parameters do not meet the noise-free condition, adjust the updated operating parameters to reduce the noise of the water heater.

[0102] The water heater control device provided in this embodiment can execute the water heater control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0103] Embodiment 4

[0104] Figure 4 : is a structural diagram of an electronic device provided in Example 4. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0105] like Figure 4As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0106] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0107] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a control method for a water heater.

[0108] In some embodiments, the control method of the water heater may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the control method of the water heater described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to execute the control method of the water heater in any other appropriate manner (e.g., by means of firmware).

[0109] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0110] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0111] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0112] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0113] The systems and techniques described herein can be implemented in a computing system that includes backend components (e.g., as a data server) or a computing system that includes middleware components (e.g., an application server) or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein) or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0114] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0115] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0116] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for controlling a water heater, characterized in that: include: Determining the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include heater power and water pump speed; Determining whether the outlet water temperature is equal to a preset temperature value; If the outlet water temperature is not equal to the preset temperature value, determining an adjustment scheme for the heater power and / or an adjustment scheme for the water pump speed based on the outlet water temperature and the preset temperature value; The operating parameters are adjusted based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed to adjust the outlet water temperature of the water heater.

2. The method according to claim 1, characterized in that The determining whether the outlet water temperature is equal to a preset temperature value comprises: Determine whether the difference between the outlet water temperature and the preset temperature value is greater than a first temperature threshold; If the difference between the outlet water temperature and the preset temperature value is greater than a first temperature threshold, determining that the outlet water temperature is not equal to the preset temperature value; If the difference between the outlet water temperature and the preset temperature value is less than or equal to a first temperature threshold, it is determined that the outlet water temperature is equal to the preset temperature value.

3. The method according to claim 1, characterized in that The heater power adjustment scheme includes an adjustment direction and an adjustment scale of the heater power, wherein the adjustment direction of the heater power includes an increase direction and a decrease direction, and the adjustment scale of the heater power includes a first power adjustment threshold and a second power adjustment threshold, wherein the first power adjustment threshold is greater than the second power adjustment threshold; The water pump speed adjustment scheme includes the water pump speed adjustment direction, and the water pump speed adjustment direction includes an increasing direction and a decreasing direction.

4. The method according to claim 3, characterized in that The adjusting scheme of determining the heater power based on the outlet water temperature and the preset temperature value includes: Determining whether the outlet water temperature is greater than the preset temperature value; If the outlet water temperature is greater than the preset temperature value, determining that the adjustment direction of the heater power is a decreasing direction, and determining the adjustment scale of the heater power based on the difference between the outlet water temperature and the preset temperature value; If the outlet water temperature is lower than the preset temperature value, the adjustment direction of the heater power is determined to be an increasing direction, and the adjustment scale of the heater power is determined based on the difference between the outlet water temperature and the preset temperature value.

5. The method according to claim 4, characterized in that The step of determining the adjustment scale of the heater power based on the difference between the outlet water temperature and the preset temperature value includes: Determine whether the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to a second temperature threshold, wherein the second temperature threshold is greater than the first temperature threshold; If the absolute value of the difference between the outlet water temperature and the preset temperature value is greater than or equal to the second temperature threshold, determining that the adjustment scale of the heater power is the first power adjustment threshold; If the absolute value of the difference between the outlet water temperature and the preset temperature value is less than the second temperature threshold, the adjustment scale of the heater power is determined to be the second power adjustment threshold.

6. The method according to claim 3, characterized in that The adjustment scheme of the water pump speed is determined based on the outlet water temperature and the preset temperature value, including: Determining whether the outlet water temperature is greater than the preset temperature value; If the outlet water temperature is greater than the preset temperature value, determining that the adjustment direction of the water pump speed is an increasing direction; If the outlet water temperature is lower than the preset temperature value, it is determined that the adjustment direction of the water pump speed is a decreasing direction.

7. The method according to claim 3, characterized in that The adjusting of the operating parameters based on the heater power adjustment scheme and / or the water pump speed adjustment scheme includes: updating the heater power based on the adjustment direction and adjustment scale of the heater power and / or updating the water pump speed based on the adjustment direction and preset speed value of the water pump speed, and determining whether the outlet water temperature of the water heater is equal to the preset temperature value after a preset time period; If the outlet water temperature of the water heater is equal to the preset temperature value, controlling the water heater to operate based on the updated operating parameters; If the water outlet temperature of the water heater is not equal to the preset temperature value, the adjustment direction of the water pump speed, the adjustment direction and adjustment scale of the heater power are updated based on the water outlet temperature and the preset temperature value, and the process returns to execute the steps of updating the heater power based on the adjustment direction and adjustment scale of the heater power and / or updating the water pump speed based on the adjustment direction and preset speed value.

8. A control device for a water heater, characterized in that: include: An acquisition module, used to determine the outlet water temperature and operating parameters of the water heater, wherein the operating parameters include heater power and water pump speed; A judgment module, used to determine whether the outlet water temperature is equal to a preset temperature value; a determination module, configured to determine, if the outlet water temperature is not equal to the preset temperature value, an adjustment scheme for the heater power and / or an adjustment scheme for the water pump speed based on the outlet water temperature and the preset temperature value; An execution module is used to adjust the operating parameters based on the adjustment scheme of the heater power and / or the adjustment scheme of the water pump speed, so as to adjust the outlet water temperature of the water heater.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively coupled to the at least one processor; The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the water heater control method described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the water heater control method described in any one of claims 1 to 7 when executed.

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