Electric water heater and control method, device and storage medium thereof

Abstract

The present invention discloses an electric water heater and a control method, device and storage medium thereof. The control method of the electric water heater comprises: obtaining target water demand information, wherein the target water demand information comprises a target water use time or a target water use amount; determining a target heating control mode according to the target water demand information; and heating and controlling the electric water heater according to the target heating control mode. The present invention can realize accurate customization of the required hot water amount of the electric water heater, and can send a reminder of the remaining hot water use time to the user, thereby improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of electric water heaters, and in particular to an electric water heater and a control method, device and storage medium thereof. Background Art

[0002] At present, the method for displaying the amount of hot water in a storage-type electric water heater is to display the percentage of the remaining hot water in the water tank capacity or the hot water amount bar mark on its display panel. However, during use, the user cannot clearly know how long the hot water in the electric water heater can provide for the user's bathing only from the percentage of the remaining hot water in the water tank capacity or the hot water amount bar mark. Therefore, during the bathing process, there may be a problem of no hot water supply or when the user feels that the amount of hot water is insufficient, the electric water heater is controlled to heat too much water, resulting in energy waste. Therefore, the current storage-type electric water heaters cannot achieve accurate customization of the required water volume. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the first object of the present invention is to provide a control method for an electric water heater to achieve accurate customization of the required water volume.

[0004] To achieve the above-mentioned object, a first embodiment of the present invention provides a control method for an electric water heater, comprising: obtaining target water demand information, wherein the target water demand information includes a target water use time or a target water use amount; determining a target heating control mode according to the target water demand information;

[0005] The electric water heater is heated and controlled according to the target heating control method.

[0006] According to the control method of the electric water heater in the embodiment of the present invention, the corresponding target heating control mode can be determined by obtaining the target water use time or the target water volume. The electric water heater is heated by the corresponding target heating control mode, and a method for accurately customizing the water volume based on different target water demand information can be implemented, thereby meeting the bathing needs of users.

[0007] According to one embodiment of the present invention, the heating control of the electric water heater according to the target heating control mode includes: when the target heating control mode includes a static heating control mode and a target heating temperature, static heating control is performed on the electric water heater to heat the water in the inner tank of the electric water heater to the target heating temperature; when the target heating control mode includes a static heating control mode and a dynamic heating control mode, static heating control is performed on the electric water heater to heat the water in the inner tank of the electric water heater to a maximum heating temperature threshold, and when water use is detected, dynamic heating control is performed on the electric water heater.

[0008] According to one embodiment of the present invention, the dynamic heating control of the electric water heater includes:

[0009] Determine the remaining hot water demand of the electric water heater and obtain the dynamic heating hot water replenishment rate; determine the dynamic heating time according to the remaining hot water demand and the dynamic heating hot water replenishment rate; and dynamically control the heating of the electric water heater according to the dynamic heating time.

[0010] According to one embodiment of the present invention, when the target water demand information includes a target water volume, determining the remaining required hot water volume of the electric water heater includes: obtaining a target equivalent water volume according to the water demand information; obtaining an inlet water temperature, a mixed water temperature and a total capacity of the electric water heater; obtaining a first equivalent water volume according to the maximum heating temperature threshold, the inlet water temperature, the mixed water temperature and the total capacity; and obtaining the remaining required hot water volume by subtracting the target equivalent water volume from the first equivalent water volume.

[0011] According to one embodiment of the present invention, when the target water demand information includes a target water use time, the method further includes: obtaining the commonly used water flow, actual water flow and accumulated water use time of the electric water heater; wherein, determining the remaining required hot water volume of the electric water heater includes: obtaining the inlet water temperature, mixed water temperature and total capacity of the electric water heater; obtaining a first equivalent water volume according to the maximum heating temperature threshold, the inlet water temperature, the mixed water temperature and the total capacity; obtaining the remaining required hot water volume according to the target water use time, the first equivalent water volume, the commonly used water flow, the actual water flow and the accumulated water use time.

[0012] According to an embodiment of the present invention, when the target heating control mode includes a static heating control mode and a target heating temperature, determining the target heating control mode according to the water demand information includes:

[0013] Obtain a target equivalent water volume according to the water demand information; obtain the inlet water temperature, mixed water temperature and total capacity of the electric water heater; and obtain the target heating temperature according to the target equivalent water volume, the inlet water temperature, the mixed water temperature and the total capacity.

[0014] According to one embodiment of the present invention, when the target water demand information includes a target water volume, the target equivalent water volume is equal to the target water volume; when the target water use information includes a target water use time, the historical water flow of the electric water heater is also obtained, and the commonly used water flow is obtained based on the historical water flow, wherein the target equivalent water volume is the product of the target water use time and the commonly used water flow.

[0015] According to one embodiment of the present invention, the method also includes: obtaining the actual water flow rate and accumulated water use time of the electric water heater; determining the remaining hot water usage time of the electric water heater based on the first equivalent water volume, the dynamic heating hot water replenishment rate, the dynamic heating time, the actual water flow rate and the accumulated water use time, and issuing a prompt message to provide a prompt of the remaining hot water usage time.

[0016] To achieve the above objectives, a second embodiment of the present invention provides a computer-readable storage medium on which a control program for an electric water heater is stored. When the control program for the electric water heater is executed by a processor, the control method for the electric water heater described above is implemented.

[0017] According to the computer-readable storage medium of the embodiment of the present invention, when the control program of the electric water heater stored thereon is executed by the processor, the above-mentioned control method of the electric water heater can be implemented, thereby realizing accurate customization of the water volume of the electric water heater.

[0018] To achieve the above-mentioned purpose, the third aspect of the present invention proposes an electric water heater, comprising a memory, a processor, and a control program for the electric water heater stored in the memory and executable on the processor, wherein when the processor executes the control program for the electric water heater, the control method for the electric water heater described above is implemented.

[0019] According to the electric water heater of the embodiment of the present invention, when the control program of the electric water heater running thereon is executed by the processor, the above-mentioned control method of the electric water heater can be implemented, thereby realizing accurate customization of the water volume of the electric water heater.

[0020] To achieve the above-mentioned purpose, the fourth aspect of the present invention proposes a control device for an electric water heater, comprising: an acquisition module for acquiring target water demand information, wherein the target water demand information includes a target water use time or a target water use volume; a determination module for determining a target heating control mode according to the target water demand information; and a control module for controlling the heating of the electric water heater according to the target heating control mode.

[0021] According to the control device of the electric water heater in the embodiment of the present invention, a corresponding target heating control method can be determined by obtaining the target water use time or the target water volume, and the electric water heater is heated by the corresponding target heating control method, so as to realize a method for accurately customizing the water volume based on different target water demand information, thereby meeting the bathing needs of users.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a flow chart of a control method for an electric water heater according to an embodiment of the present invention;

[0024] Figure 2 A working schematic diagram of a control method for an electric water heater according to an embodiment of the present invention;

[0025] Figure 3 4 is a structural block diagram of a control device for an electric water heater according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below. Examples of the embodiments described below are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0027] As described in the background technology, currently, the method for displaying the amount of hot water in a storage-type electric water heater is to display the percentage of the remaining amount of hot water in the water tank capacity or the hot water amount bar mark on its display panel. However, during use, the user cannot clearly know how long the hot water in the electric water heater can provide for the user's bathing only from the percentage of the remaining amount of hot water in the water tank capacity or the hot water amount bar mark. Therefore, during the bathing process, there may be a problem that there is no hot water supply or the user feels that the amount of hot water is insufficient, and the electric water heater is controlled to heat too much water, resulting in energy waste. Therefore, the current storage-type electric water heater cannot achieve accurate customization of the amount of water. To this end, the present invention provides an electric water heater and a control method, device and storage medium thereof to prompt the remaining use time of hot water and achieve accurate customization of the required amount of water.

[0028] Please refer to the following Figure 1-3 An electric water heater and a control method, device and storage medium thereof according to an embodiment of the present invention are described.

[0029] refer to Figure 1 As shown, the control method of the electric water heater according to the embodiment of the present invention may include:

[0030] S1. Obtain target water demand information, wherein the target water demand information includes a target water use time or a target water use amount.

[0031] Specifically, in order to prevent the user from having insufficient hot water supply when bathing, the electric water heater in this embodiment can obtain target water demand information and determine a corresponding heating method according to the information, so as to heat the electric water heater by the corresponding heating method, thereby realizing accurate customization of hot water. The target water demand information can be set in a parameter setting module on the electric water heater.

[0032] As an example, before taking a bath, the user can select a setting button on the display panel of the electric water heater to enter the water demand setting interface, through which the water demand information for the upcoming bath can be set, for example, selecting a target water use time of 15 minutes or a target water volume of 50L.

[0033] S2, determining a target heating control mode according to target water demand information.

[0034] Specifically, the target heating control mode in this embodiment may include a static heating control mode and a dynamic heating control mode. Among them, the static heating control mode is a control mode for heating the electric water heater before bathing. In this embodiment, when the electric water heater is statically heated, the electric water heater can be heated to the target heating temperature to save energy consumption. Among them, the dynamic heating control mode is a mode in which the user heats while bathing, or heats after turning off the water.

[0035] Specifically, after the electric water heater reads the target water demand information input by the user, if it is determined based on the target water demand information that dynamic heating control is not necessary, that is, the water volume of the electric water heater meets the target water volume or target water use time, a static heating control method can be adopted; when it is determined based on the target water demand information that dynamic heating control is required, a dynamic heating control method that heats while bathing and meets the user's bathing needs can be adopted.

[0036] S3, performing heating control on the electric water heater according to the target heating control mode.

[0037] In one embodiment of the present invention, heating control of an electric water heater is performed according to a target heating control mode, including:

[0038] When the target heating control mode includes a static heating control mode and a target heating temperature, the electric water heater is subjected to static heating control to heat the water in the inner tank of the electric water heater to the target heating temperature; when the target heating control mode includes a static heating control mode and a dynamic heating control mode, the electric water heater is subjected to static heating control to heat the water in the inner tank of the electric water heater to a maximum heating temperature threshold, and when water use is detected, the electric water heater is subjected to dynamic heating control.

[0039] Specifically, when it is determined that the static heating control mode is adopted, the water in the electric water heater can be heated to the target heating temperature. In this embodiment, when the target heating control mode includes the static heating control mode and the target heating temperature, determining the target heating control mode according to the water demand information may include:

[0040] Obtain a target equivalent water volume according to water demand information; obtain an inlet water temperature, a mixed water temperature and a total capacity of the electric water heater; and obtain a target heating temperature according to the target equivalent water volume, the inlet water temperature, the mixed water temperature and the total capacity.

[0041] Specifically, the electric water heater in this embodiment has a hot water outlet pipe, a first cold water inlet pipe, a second cold water inlet pipe and a mixing valve, wherein the first cold water inlet pipe is connected to the electric water heater and is used to deliver cold water to the electric water heater. One end of the hot water outlet pipe is connected to the electric water heater, and the other end is connected to the hot water inlet end of the mixing valve, and the outlet end of the second cold water inlet pipe is connected to the cold water inlet end of the mixing valve. The hot water outlet pipe can transfer the hot water heated by the electric water heater to the mixing valve to mix with the cold water delivered by the second cold water inlet pipe to obtain mixed water at a user-preset temperature, and provide the user with mixed water at the temperature for the user to bathe. The mixed water temperature can be set through the display panel.

[0042] In this embodiment, the target equivalent water volume V can be obtained according to the target water consumption set by the user, and a first temperature sensor can be set at the water outlet of the mixing valve to detect the temperature of the mixed water through the first temperature sensor, and a second temperature sensor can be set at the first cold water inlet pipe to detect the temperature of the cold water replenished by the first cold water inlet pipe through the second temperature sensor. For example, the mixed water (mixed water) temperature detected by the first temperature sensor can be R1, and the replenishing water temperature detected by the second temperature sensor can be R2.

[0043] Optionally, the electric water heater in this embodiment may include a memory and a processor. The memory may store various performance parameters of the electric water heater, such as rated power, rated voltage, energy consumption level, and model parameters. When the processor executes the control program of the electric water heater, Figure 2 As shown, the model parameter on the memory can be read, and the total capacity V0 of the electric water heater can be obtained locally according to the model parameter, or the total capacity of the electric water heater corresponding to the model parameter can be obtained from the remote server by communicating with the remote server. It should be noted that the model parameter of the electric water heater in the embodiment of the present invention can be associated with other performance parameters of the electric water heater, so that when the processor obtains the model parameter, it can search and obtain other performance parameters. Of course, in this embodiment, the total capacity parameter of the electric water heater can also be read directly from the local memory.

[0044] When the target equivalent water volume V, the total capacity V0 of the electric water heater, the mixed water temperature R1, and the replenishing water temperature R2 are obtained, the target heating temperature R3 can be obtained according to the following formula:

[0045]

[0046] Where μ is the hot water output rate coefficient.

[0047] After the target heating temperature is determined, it can be displayed on the display panel to prompt the user to set the corresponding temperature. Of course, the user can set the target heating temperature value by himself or according to the temperature prompt of the display panel. When the water in the inner tank of the electric water heater is heated to the target heating temperature, the third temperature sensor set in the inner tank can detect that the hot water temperature reaches the target heating temperature, and further issue an early warning prompt through the buzzer to prompt that the current hot water has been heated to the target heating temperature, so that the user can take a bath in time.

[0048] It should be noted that when the user sets the target heating temperature value, the user can select any temperature in the heating range of the electric water heater as the target heating temperature. In order to save energy, the user can set the temperature determined by the target equivalent water volume, the total capacity of the electric water heater, the mixing water temperature and the make-up water temperature as the target heating temperature.

[0049] When the electric water heater determines that dynamic heating is required based on the target water demand information, static heating control can be performed before the user takes a bath, and the water in the inner tank of the electric water heater is heated to the maximum heating temperature threshold, so that the temperature value of the water in the inner tank is still greater than the target heating temperature value after cooling down. After the user takes a bath, the hot water outlet pipe is always discharging water, and the first cold water inlet pipe is always replenishing water, so the electric water heater can be dynamically heated.

[0050] In one embodiment of the present invention, dynamic heating control of an electric water heater may include: determining the remaining hot water demand of the electric water heater and obtaining a dynamic hot water replenishment rate; determining a dynamic heating time according to the remaining hot water demand and the dynamic hot water replenishment rate; and dynamically controlling the electric water heater according to the dynamic heating time.

[0051] Specifically, the remaining required hot water volume of the electric water heater can be determined to achieve accurate customization of the required water volume. The dynamic heating hot water replenishment rate can be further obtained. Among them, the dynamic heating hot water replenishment rate is the amount of water per unit time that the dynamic heating pipe of the electric water heater can heat the cold water supplied by the first cold water inlet pipe from the cold water temperature to the mixed water outlet temperature that meets the user's preset mixed water temperature. After determining the remaining required hot water volume and the dynamic heating hot water replenishment rate, the dynamic heating time of the remaining required hot water volume can be determined according to the remaining required hot water volume and the dynamic heating hot water replenishment rate, and the quantitative heating control of the corresponding water volume of the electric water heater can be achieved through the dynamic heating time.

[0052] In this embodiment, when dynamic heating control is performed, the remaining required hot water volume of the electric water heater can be determined according to the target water consumption and the target water consumption time.

[0053] Optionally, when the target water demand information includes a target water volume, determining the remaining required hot water volume of the electric water heater includes: obtaining a target equivalent water volume based on the water demand information; obtaining an inlet water temperature, a mixed water temperature and a total capacity of the electric water heater; obtaining a first equivalent water volume based on a maximum heating temperature threshold, an inlet water temperature, a mixed water temperature and a total capacity; and obtaining a remaining required hot water volume by subtracting the target equivalent water volume from the first equivalent water volume.

[0054] In this embodiment, the mixed water temperature R1 can be detected by the first temperature sensor, the replenishing water temperature R2 can be detected by the second temperature sensor, and the temperature value R4 (maximum heating temperature threshold) of the hot water in the inner tank can be obtained by the third temperature sensor. After obtaining the mixed water temperature R1, the replenishing water temperature R2, the temperature value R4 of the hot water in the inner tank and the total capacity V0 of the electric water heater, the first equivalent water volume can be calculated according to the following formula.

[0055]

[0056] Among them, μ is the hot water output rate coefficient, and V1 is the first equivalent water volume.

[0057] When the target water demand information is the target water volume, the target water volume is the target equivalent water volume. For example, if the user sets the target water volume to 50L, the target equivalent water volume is 50L. Among them, the first equivalent water volume in this embodiment can be the total capacity during static heating, such as heating the water in the inner tank to the maximum heating temperature threshold before bathing. For example, the remaining required hot water volume in this embodiment is 10L, that is, the dynamic heating tube of the electric water heater can heat the cold water supplied by the first cold water inlet pipe from the cold water temperature to the mixed water outlet temperature that meets the user's preset mixed water temperature, which is 10L, thereby achieving precise heating of the water volume.

[0058] In one embodiment of the present invention, when the target water demand information includes a target water use time, the method further includes: obtaining the commonly used water flow, actual water flow and accumulated water use time of the electric water heater; wherein, determining the remaining required hot water volume of the electric water heater includes: obtaining the inlet water temperature, mixed water temperature and total capacity of the electric water heater; obtaining a first equivalent water volume according to the maximum heating temperature threshold, the inlet water temperature, the mixed water temperature and the total capacity; obtaining the remaining required hot water volume according to the target water use time, the first equivalent water volume, the commonly used water flow, the actual water flow and the accumulated water use time.

[0059] Specifically, the target water use time can be set as a, and the first equivalent water volume can be determined as described above. In this embodiment, the determined first equivalent water volume is set as b, the actual water flow rate is c1, the common water flow rate is c2, and the accumulated water use time is d. Therefore, after the accumulated water use time is determined to be d, the remaining water use time can be obtained as ad, where the first equivalent water volume of the electric water heater is b, then after the accumulated water use time is d, the remaining usable equivalent water volume in the first electric water heater is b-c1*d, so the time that the remaining usable equivalent water volume in the first electric water heater can be used is (b-c1*d) / c2, and the remaining required hot water volume e of the electric water heater can be determined by the following formula:

[0060]

[0061] In this way, accurate customization of the required hot water volume of the electric water heater can be achieved.

[0062] As described above, when the target water demand information includes the target water volume, the target equivalent water volume is equal to the target water volume; when the target water demand information includes the target water use time, the historical water flow of the electric water heater can also be obtained, and the commonly used water flow can be obtained based on the historical water flow, wherein the target equivalent water volume is the product of the target water use time and the commonly used water flow.

[0063] Specifically, a water flow sensor can be set on the hot water outlet pipe. When the user opens the mixing valve to bathe, the water flow sensor starts to monitor and records the current time as t0. When the user closes the mixing valve to stop bathing, the current time is recorded as t1. During the t0-t1 period, i.e., the bathing period, the water flow sensor can obtain multiple historical water flow rates of the hot water outlet pipe, i.e., the outlet, of the electric water heater at multiple intermediate times at preset time intervals (e.g., 1 minute), so as to obtain the commonly used water flow rate through multiple historical water flow rate corrections. After obtaining the target water use time and the commonly used water flow rate, the target equivalent water volume can be obtained according to the target water use time and the commonly used water flow rate.

[0064] In this embodiment, the remaining usage time of hot water can also be predicted. Optionally, the method further includes: obtaining the actual water flow rate and accumulated water usage time of the electric water heater; determining the remaining usage time of the hot water of the electric water heater according to the first equivalent water volume, the dynamic heating hot water replenishment rate, the dynamic heating time, the actual water flow rate and the accumulated water usage time, and issuing a prompt message to prompt the remaining usage time of the hot water.

[0065] Specifically, the first equivalent water volume can be set to V1, that is, the equivalent water volume for bathing users before dynamic heating is V1, and the dynamic heating hot water replenishment rate can be set to H0, the dynamic heating time can be set to tm, the actual water flow rate can be set to c1, and the accumulated water use time can be set to tn. Then, the equivalent hot water volume heated by the dynamic heating pipe can be obtained as H0*tm, and the remaining hot water usage can be obtained as V1-c1*tn+H0*tm through the first equivalent water volume V1, the actual water flow rate c1, the accumulated water use time tn, and the equivalent hot water volume heated by the dynamic heating pipe H0*tm; and the equivalent hot water flow rate can be obtained as c1-H0 through the actual water flow rate c1 and the dynamic heating hot water replenishment rate H0, thereby obtaining the remaining hot water usage time ts as:

[0066]

[0067] like Figure 2 As shown, after the remaining usage time of the hot water is determined, a buzzer can be used to issue an early warning reminder of the remaining usage time of the hot water.

[0068] Furthermore, the present invention also proposes a computer-readable storage medium on which a control program for an electric water heater is stored. When the control program for the electric water heater is executed by a processor, the above-mentioned control method for the electric water heater is implemented, thereby enabling precise customization of the water volume of the electric water heater.

[0069] Furthermore, the present invention also proposes an electric water heater, comprising a memory, a processor, and a control program for the electric water heater stored in the memory and executable on the processor. When the processor executes the control program for the electric water heater, the above-mentioned control method for the electric water heater is implemented, thereby enabling precise customization of the water volume of the electric water heater.

[0070] Figure 3 FIG. 1 is a structural block diagram of a control device for an electric water heater according to an embodiment of the present invention. Figure 3 As shown, the control device 100 of the electric water heater may include: an acquisition module 10, a determination module 20 and a control module 30, wherein the acquisition module 10 is used to acquire target water demand information, wherein the target water demand information may include a target water use time or a target water volume; the determination module 20 is used to determine a target heating control mode according to the target water demand information; and the control module 30 is used to perform heating control on the electric water heater according to the target heating control mode.

[0071] Specifically, the control module 30 is also used to perform static heating control on the electric water heater when the target heating control mode includes a static heating control mode and a target heating temperature, so as to heat the water in the inner tank of the electric water heater to the target heating temperature; when the target heating control mode includes a static heating control mode and a dynamic heating control mode, perform static heating control on the electric water heater to heat the water in the inner tank of the electric water heater to a maximum heating temperature threshold, and perform dynamic heating control on the electric water heater when water use is detected.

[0072] The control module 30 is also used to determine the remaining hot water demand of the electric water heater and obtain the dynamic heating hot water supply rate; determine the dynamic heating time according to the remaining hot water demand and the dynamic heating hot water supply rate; and dynamically control the heating of the electric water heater according to the dynamic heating time.

[0073] When the target water demand information includes a target water volume, the control module 30 is further used to obtain a target equivalent water volume based on the water demand information obtained by the acquisition module 10; obtain the inlet water temperature, the mixed water temperature and the total capacity of the electric water heater; obtain a first equivalent water volume based on the maximum heating temperature threshold, the inlet water temperature, the mixed water temperature and the total capacity; and subtract the target equivalent water volume from the first equivalent water volume to obtain the remaining required hot water volume.

[0074] When the target water demand information includes the target water use time, the control module 30 is also used to obtain the commonly used water flow, actual water flow and accumulated water use time of the electric water heater; obtain the water inlet temperature, mixed water temperature and total capacity of the electric water heater; obtain the first equivalent water volume according to the maximum heating temperature threshold, the water inlet temperature, the mixed water temperature and the total capacity; obtain the remaining required hot water volume according to the target water use time, the first equivalent water volume, the commonly used water flow, the actual water flow and the accumulated water use time.

[0075] When the target heating control mode includes a static heating control mode and a target heating temperature, the control module 30 is also used to obtain the target equivalent water volume according to the water demand information obtained by the acquisition module 10; obtain the inlet water temperature, mixed water temperature and total capacity of the electric water heater; and obtain the target heating temperature according to the target equivalent water volume, inlet water temperature, mixed water temperature and total capacity.

[0076] The control module 30 is also used to obtain the actual water flow and cumulative water usage time of the electric water heater; determine the remaining hot water usage time of the electric water heater based on the first equivalent water volume, dynamic heating power, dynamic heating time, actual water flow and cumulative water usage time, and issue a prompt message to prompt the remaining hot water usage time.

[0077] It should be noted that the specific implementation of the control device of the electric water heater in the embodiment of the present invention can refer to the specific implementation of the control method of the electric water heater mentioned above, which will not be repeated here.

[0078] To sum up, the control device of the electric water heater in the embodiment of the present invention can determine the corresponding target heating control method by obtaining the target water usage time or the target water volume, and heats the electric water heater through the corresponding target heating control method, thereby realizing a method for accurately customizing the water volume based on different target water demand information, thereby meeting the bathing needs of users.

[0079] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples (non-exhaustive list) of computer-readable media include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0080] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiment, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. If implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0082] In this embodiment, the first feature being “above” or “below” the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being “above”, “above”, and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being “below”, “below”, and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0083] In this embodiment, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, and the computer instructions can be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk SolidState Disk (SSD)), etc.

[0084] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, electronic device, and computer-readable storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

Claims

1. A control method for an electric water heater, characterized in that: include: Acquiring target water demand information, wherein the target water demand information includes a target water use time or a target water use amount; determining a target heating control mode according to the target water demand information; Controlling the heating of the electric water heater according to the target heating control method; The heating control of the electric water heater according to the target heating control mode includes: When the target heating control mode includes a static heating control mode and a target heating temperature, static heating control is performed on the electric water heater to heat the water in the inner tank of the electric water heater to the target heating temperature; When the target heating control mode includes a static heating control mode and a dynamic heating control mode, static heating control is performed on the electric water heater to heat the water in the inner tank of the electric water heater to a maximum heating temperature threshold. When water use is detected, dynamic heating control is performed on the electric water heater.

2. The method according to claim 1, characterized in that The dynamic heating control of the electric water heater comprises: Determine the remaining required hot water volume of the electric water heater and obtain the dynamic heating hot water replenishment rate; Determining the dynamic heating time according to the remaining required hot water volume and the dynamic heating hot water replenishment rate; Dynamic heating control is performed on the electric water heater according to the dynamic heating time.

3. The method according to claim 2, characterized in that When the target water demand information includes a target water consumption, determining the remaining required hot water consumption of the electric water heater includes: Obtaining a target equivalent water volume according to the target water demand information; Obtaining the water inlet temperature, mixed water temperature and total capacity of the electric water heater; Obtaining a first equivalent water volume according to the maximum heating temperature threshold, the water inlet temperature, the mixed water temperature and the total capacity; The target equivalent water volume is subtracted from the first equivalent water volume to obtain the remaining required hot water volume.

4. The method according to claim 2, characterized in that: When the target water demand information includes a target water use time, the method further includes: Obtaining the common water flow, actual water flow and accumulated water use time of the electric water heater; Wherein, determining the remaining required hot water volume of the electric water heater comprises: Obtaining the water inlet temperature, mixed water temperature and total capacity of the electric water heater; Obtaining a first equivalent water volume according to the maximum heating temperature threshold, the water inlet temperature, the mixed water temperature and the total capacity; The remaining required hot water volume is obtained according to the target water use time, the first equivalent water volume, the common water flow rate, the actual water flow rate and the accumulated water use time.

5. The method according to claim 1, characterized in that When the target heating control mode includes a static heating control mode and a target heating temperature, determining the target heating control mode according to the target water demand information includes: Obtaining a target equivalent water volume according to the target water demand information; Obtaining the water inlet temperature, mixed water temperature and total capacity of the electric water heater; The target heating temperature is obtained according to the target equivalent water volume, the water inlet temperature, the mixed water temperature and the total capacity.

6. The method according to claim 5, characterized in that When the target water demand information includes a target water consumption, the target equivalent water volume is equal to the target water consumption; When the target water demand information includes the target water use time, the historical water flow of the electric water heater is also obtained, and the commonly used water flow is obtained based on the historical water flow, wherein the target equivalent water volume is the product of the target water use time and the commonly used water flow.

7. The method according to claim 3 or 4, characterized in that: The method further comprises: Obtaining the actual water flow and accumulated water use time of the electric water heater; Based on the first equivalent water volume, dynamic heating power, dynamic heating time, actual water flow rate and accumulated water use time, the remaining usage time of hot water of the electric water heater is determined, and a prompt message is issued to prompt the remaining usage time of hot water.

8. A computer-readable storage medium, characterized in that: A control program of the electric water heater is stored thereon, and when the control program of the electric water heater is executed by the processor, a control method of the electric water heater according to any one of claims 1-7 is implemented.

9. An electric water heater, characterized in that: The invention comprises a memory, a processor and a control program of an electric water heater which is stored in the memory and can be run on the processor. When the processor executes the control program of the electric water heater, a control method of the electric water heater according to any one of claims 1 to 7 is implemented.

10. A control device for an electric water heater, applicable to the control method for an electric water heater according to any one of claims 1 to 7, comprising: An acquisition module, used to acquire target water demand information, wherein the target water demand information includes a target water use time or a target water use amount; A determination module, used to determine a target heating control mode according to the target water demand information; The control module is used to control the heating of the electric water heater according to the target heating control mode.

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