A heating control method for a water drinking apparatus

Abstract

The application provides a heating control method for a water drinking device, comprising: controlling a heating device to operate at a preset heating power, obtaining a plurality of temperature sampling values based on a preset sampling period, and determining according to the temperature sampling values; when the temperature sampling values meet a preset condition, determining whether the water drinking device is in a high-altitude environment based on the temperature sampling values; when it is determined that the water drinking device is not in the high-altitude environment, controlling the heating device to operate based on a preset boiling point temperature; and when it is determined that the water drinking device is in the high-altitude environment, heating based on an actual boiling point temperature in the high-altitude environment. The application does not require a user to manually input altitude or boiling point information, reduces the workload of the user, does not additionally add other devices or communicate with the outside, reduces the resource occupation of a control module and the complexity of the whole machine, repeatedly determines the current heating state of the water drinking device in a plurality of determination manners, avoids misjudgment, and improves the accuracy of boiling point identification.

Description

A heating control method for drinking water equipment Technical Field

[0001] This invention relates to the field of temperature control, and in particular to a heating control method for drinking water equipment. Background Technology

[0002] With the advancement of technology and the improvement of people's living standards, various heating devices have emerged on the market, such as water heaters, water dispensers, tea bar machines, and water purifiers. In the heating process, the heating device is generally controlled by setting a heating temperature. When the heating device detects that the liquid has been heated to its boiling point, it controls the heating device to stop heating. Otherwise, it controls the heating device to continue heating the liquid. The default setting of general heating devices is to turn off the heating device after the liquid temperature reaches 100°C.

[0003] However, the boiling point of water is affected by air pressure. When the heating equipment is located at high altitude, the boiling point of water will be significantly lower than 100°C. If the heating equipment always heats at a fixed temperature, the water equipment in high altitude areas will keep boiling, leading to overflow or even dry burning. This also increases energy consumption and results in a poor user experience.

[0004] To address the aforementioned issues, existing technologies offer several solutions, such as manually inputting altitude or boiling point information, querying boiling point online or communicating with external devices to obtain boiling point information, and using automatic boiling point identification programs to determine and change boiling point temperatures.

[0005] Regarding the method of manually inputting altitude or boiling point information, existing technologies disclose a heating control method, device, computer-readable storage medium, and cooking appliance. The heating control method includes: acquiring the atmospheric pressure signal of the external environment and determining the boiling point value based on the atmospheric pressure signal, or acquiring a boiling point value input by the user; controlling heating according to a pre-stored heating mode corresponding to the boiling point value. This scheme controls heating based on the actual boiling point value of the external environment, reducing overflow and undercooked rice, while improving the accuracy of heating control. However, manually inputting the boiling point value carries the risk of deviation from the actual boiling point. When the input boiling point value is greater than the actual boiling point value, the water dispenser remains in a boiling state for an extended period, leading to overflow, dry burning, and other problems.

[0006] Regarding solutions for obtaining boiling points through network connection or communication with external devices, existing technologies disclose a heating device and a cooking appliance. The heating device includes a container for holding materials, and further includes: a heating element for heating the materials within the container; an atmospheric pressure detection module located outside the container for detecting the atmospheric pressure outside the container and generating an atmospheric pressure signal; and a control module connected to both the heating element and the atmospheric pressure detection module for determining a first boiling point value based on the atmospheric pressure signal and controlling the heating element to heat according to a pre-stored heating mode corresponding to the first boiling point value. This technical solution reduces overflow and improves the accuracy of heating control. However, the addition of an atmospheric pressure detection module results in relatively high resource consumption for the control module and overall power consumption, while also increasing cost and the complexity of the overall structure.

[0007] Existing technologies also disclose solutions for automatic boiling point identification, including methods such as detecting temperature balance, temperature change rate, and temperature abrupt changes. Specifically, a method for determining the boiling point temperature is disclosed, including: automatically adjusting the duty cycle of the output power of the heating device to maintain communication between the heating device and the external environment; detecting the current temperature value of the liquid during the heating process; determining whether the time required for the liquid to rise from the current temperature value by X is greater than or equal to its corresponding preset threshold. If so, the current temperature value is determined as the boiling point value of the liquid; if not, the current temperature value + X is used as the current temperature value, and the process returns to determine whether the time required for the liquid to rise from the current temperature value by X is greater than or equal to its corresponding preset threshold, until the current temperature value + X reaches 100℃, at which point 100℃ is determined as the boiling point. This solution can automatically identify the boiling point according to different altitude regions. The above identification method determines whether the device is in a boiling state by detecting the heating time of a fixed temperature change value, thereby determining the boiling point value. However, this method is prone to misjudgment when there is a short-term data anomaly in the temperature sampling, resulting in inaccurate boiling point value determination and situations where the heating device is directly shut off before heating is completed, thus reducing the user experience.

[0008] Therefore, there is an urgent need for technical solutions that can address the problems or defects of the existing technologies mentioned above. Summary of the Invention

[0009] To address the aforementioned issues, this invention provides a heating control method for drinking water equipment. This method eliminates the need for users to manually input altitude or boiling point information, reducing user workload. Furthermore, it avoids the need for additional devices or external communication, thus reducing resource consumption and overall complexity of the control module. Simultaneously, it employs multiple checks to repeatedly confirm the current heating status of the drinking water equipment, preventing misjudgments caused by abnormal sampling data, improving the accuracy of boiling point identification, and further enhancing the user experience.

[0010] The technical solution of the present invention is as follows:

[0011] A heating control method for a drinking water device includes: after detecting that the drinking water device is powered on, receiving a heating command from a user, and controlling the drinking water device to sequentially enter an altitude determination stage and a heating control stage;

[0012] Altitude determination stage: The heating device is controlled to operate with a preset heating power, and several temperature sampling values ​​are obtained based on a preset sampling period. The temperature sampling values ​​are used to make a determination. When the temperature sampling values ​​meet the preset conditions, it is determined whether the drinking water equipment is in a high-altitude environment.

[0013] Heating control stage: When it is determined that the drinking water equipment is not in a high-altitude environment, the heating device is controlled to operate based on the preset boiling point temperature; when it is determined that the drinking water equipment is in a high-altitude environment, heating is performed based on the actual boiling point temperature in that high-altitude environment.

[0014] In this invention, the boiling point temperature under the current heating environment is identified by controlling the water dispenser after it is powered on, sequentially executing the altitude determination stage and the heating control stage. That is, the boiling point is automatically identified according to different altitude regions, which is convenient for users in different regions or users who change their living areas. In the altitude determination stage, the water dispenser is judged to be in a high-altitude environment by checking whether the temperature sample value meets the preset conditions and by performing a secondary judgment on the temperature sample value. This reduces the possibility of misjudgment caused by a small number of abnormal data, making the judgment result more accurate and the obtained boiling point data more precise. At the same time, the user does not need to manually input altitude or boiling point information, reducing the user's workload. There is no need to add additional detection devices or communicate with the outside world, reducing the resource consumption of the control module and the complexity of the whole machine, so as to meet the user's diverse needs.

[0015] In a preferred embodiment of the present invention, the determination is made based on the temperature sampling value. When the temperature sampling value meets a preset condition, the determination of whether the drinking water equipment is in a high-altitude environment is based on the temperature sampling value, including:

[0016] Within a defined period t, the real-time temperature sampling value T is detected M times consecutively. n Determine the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M Does the temperature difference ΔT1 meet the first preset condition?

[0017] If the conditions are met, it is determined that the drinking water equipment is in a high-altitude environment. The current temperature sampling value is recorded, and the highest heating temperature in the high-altitude environment is obtained. The highest heating temperature is used as the actual boiling point temperature in the high-altitude environment.

[0018] If the conditions are not met, it is determined that the water supply equipment is in a non-high-altitude environment. The target heating temperature is then retrieved and heated continuously until the target heating temperature is reached before the heating device is turned off.

[0019] In a preferred embodiment of the present invention, when the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M When the temperature difference ΔT1 meets the first preset condition, determine the real-time temperature sampling value T collected M times consecutively. n Compared with the previous temperature sampling value T n-1 Does the temperature difference ΔT2 satisfy the second preset condition?

[0020] If the second preset condition is met, the actual boiling point temperature is obtained based on the temperature sampling value;

[0021] If the second preset condition is not met, the cycle is limited to a period t.

[0022] Record temperature sampling values ​​that meet the first preset condition until the real-time temperature sampling value T is collected M times consecutively within the current limited period t. n Compared with the previous temperature sampling value T n-1 If the temperature difference ΔT2 continuously meets the second preset condition, then it is determined that the drinking water equipment is in a high-altitude environment.

[0023] In a preferred embodiment of the present invention, when the real-time temperature sampling value T is collected M times consecutively... n Compared with the previous temperature sampling value T n-1 When the temperature difference ΔT2 meets the second preset condition, the cycle is executed for a limited period t, continuously acquiring temperature sampling values ​​until the real-time temperature sampling value T is reached. n Compared with the previous temperature sampling value T n-M The temperature difference ΔT1 is equal to the first temperature threshold, and the real-time temperature sampling value T is recorded. n The highest heating temperature in this high-altitude environment is taken as the actual boiling point temperature in this high-altitude environment.

[0024] In a preferred embodiment of the present invention, when the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M When the temperature difference ΔT1 meets the first preset condition, it continues to determine whether ΔT1 meets the third preset condition. If it does, it is determined to be a sampling abnormality, heating is stopped, and an alarm prompt is issued to the user.

[0025] In a preferred embodiment of the present invention, the target heating temperature is determined based on the heating command and the boiling point temperature, when the real-time temperature sampling value T n Compared with historical temperature sampling value T n-MIf the temperature difference ΔT1 does not meet the first preset condition, it is further determined whether ΔT1 is less than the second temperature threshold. If so, the heating device is controlled to heat to the target heating temperature, and then the heating is delayed for the first heating time before the heating device is turned off. Otherwise, the heating device is controlled to heat to the target heating temperature and then the heating device is turned off directly.

[0026] In a preferred embodiment of the present invention, a preheating stage is further included before the altitude determination stage begins, specifically as follows:

[0027] The heating device is turned on to heat the water dispenser. When the real-time temperature T is detected... 实 When the preset initial temperature threshold is reached, the rated heating power W is used. 全 The heating device is maintained for a second heating duration, and the water drinking device is controlled to enter a slight boiling state. The water drinking device then enters the altitude determination stage while in the slight boiling state.

[0028] In a preferred embodiment of the present invention, when the water dispenser receives a heating command from a user during operation, it determines whether the heating command is the first heating command after the water dispenser is powered on. If so, the water dispenser is controlled to sequentially enter the altitude determination stage and the heating control stage; otherwise, a target heating temperature is determined based on the heating command and the actual boiling point temperature, and the water dispenser controls the operation of the heating device according to the target heating temperature.

[0029] In a preferred embodiment of the present invention, determining the target heating temperature based on the heating command and the boiling point temperature includes:

[0030] The heating command is parsed to obtain the target heating temperature selected by the user. It is then determined whether the target heating temperature is lower than the actual boiling point temperature recorded by the water dispenser. If so, the heating device is controlled to heat according to the target heating temperature. Otherwise, the value of the actual boiling point temperature is assigned to the target heating temperature, and the heating device is controlled to heat according to the updated target heating temperature.

[0031] In a preferred embodiment of the present invention, the drinking water equipment controls the operation of the heating device according to the target heating temperature, specifically: using the rated heating power W 全 As the initial heating power, the current target heating temperature and the real-time temperature T of the water dispenser are compared. 实 If the temperature difference is less than the third temperature threshold, the heating power is reduced to the first heating power, and the current target heating temperature and real-time temperature T of the water dispenser are compared. 实 If the temperature difference is less than the fourth temperature threshold, the heating power will be reduced to the second heating power.

[0032] Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of the invention. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 is a schematic diagram of the preheating stage in an embodiment of the present invention.

[0035] Figure 2 is a schematic diagram of the altitude determination stage in an embodiment of the present invention.

[0036] Figure 3 is a schematic diagram of the process for obtaining the target heating temperature in an embodiment of the present invention.

[0037] Figure 4 is a schematic flowchart of the heating power control process in the heating device of the present invention. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The present invention provides a heating control method for a water drinking device, comprising: after detecting that the water drinking device is powered on, receiving a heating command from a user, and controlling the water drinking device to sequentially enter a preheating stage, an altitude determination stage, and a heating control stage.

[0040] Altitude determination stage: The heating device is controlled to operate with a preset heating power, and several temperature sampling values ​​are obtained based on a preset sampling period. The temperature sampling values ​​are used to make a determination. When the temperature sampling values ​​meet the preset conditions, it is determined whether the drinking water equipment is in a high-altitude environment.

[0041] The altitude determination stage is the main step in identifying the boiling point temperature in this invention. In this step, the temperature of the drinking water device, which has entered a slight boiling state, is sampled, and the sampled temperature values ​​are cyclically determined. When the temperature sampled values ​​continuously meet preset conditions, it is determined that the drinking water device is in a boiling state. Temperature sampling is stopped, and the temperature sampled values ​​that meet the preset conditions are used to determine whether the drinking water device is in a high-altitude environment. This process is based on the fact that different altitudes have different boiling points. During continuous heating, the temperature values ​​after the same sampling period will be different, thus determining whether the drinking water device is in a high-altitude state. The sampling period is a preset fixed value, based on the rated heating power (W) of the heating device. 全 The current water volume in the water container of the drinking water equipment is determined, and the cyclic judgment is to judge several different temperature sampling values ​​in sequence. This judgment is a cyclic process until the temperature sampling values ​​continuously meet the preset conditions.

[0042] Heating control stage: When it is determined that the drinking water equipment is not in a high-altitude environment, the heating device is controlled to operate based on the preset boiling point temperature; when it is determined that the drinking water equipment is in a high-altitude environment, heating is performed based on the actual boiling point temperature in that high-altitude environment.

[0043] The heating control stage is a subsequent stage of the control method of this invention. The boiling point temperature of the water dispenser in the current environment is determined by the altitude determination result. Specifically, when it is determined that the water dispenser is not in a high-altitude environment, that is, the user's area is a plain area, the preset boiling point temperature in the water dispenser is invoked to control the operation of the heating device. The preset boiling point temperature is generally 100°C. When it is determined that the water dispenser is in a high-altitude environment, the actual boiling point temperature in the high-altitude environment is obtained by recording the temperature sampling value and controlling the heating device to heat. After heating is completed, the heating device is turned off to complete the current heating process. At the same time, the obtained actual boiling point temperature is recorded in the water dispenser and used as a reference value in the subsequent heating process and altitude determination process, or directly used as the maximum heating temperature in the subsequent heating process.

[0044] Specifically, the process of sequentially entering the preheating stage, altitude determination stage, and heating control stage to identify the boiling point temperature only occurs automatically under the first heating command after power-on. After obtaining the boiling point temperature, this temperature value is used as the highest temperature value in the subsequent heating process. This process needs to be restarted to obtain a new boiling point temperature when the water dispenser is powered off and moved to another area or when the user actively chooses to re-identify the boiling point temperature.

[0045] The control method described above will be explained in detail below through specific embodiments.

[0046] This embodiment provides a method for automatic boiling point identification in drinking water equipment, including:

[0047] 1. Preheating:

[0048] The heating device is turned on to heat the water dispenser. When the real-time temperature T is detected... 实 When the preset initial temperature threshold is reached, the rated heating power W is used. 全 The heating device is maintained for a second heating period, and the water drinking device is controlled to enter a slight boiling state. The water drinking device then enters the altitude determination stage while in the slight boiling state.

[0049] As shown in Figure 1, after detecting that the water dispenser is powered on, it determines whether a heating command from the user has been received. If so, it controls the water dispenser to enter the preheating stage, where the heating device operates at a rated heating power W based on a preset boiling point temperature. 全 Running, when the real-time temperature T is detected 实 When the initial temperature threshold is reached, the heating device is controlled to maintain the rated heating power W. 全 The second heating period is then initiated for delayed heating. During this time, the water dispenser is in a state of slight boiling, and preparations are made to control the water dispenser to enter the altitude determination stage. In this specific embodiment, the initial temperature threshold can be set to 75°C, and the second heating period can be set to 10 seconds. After the heating device operates at full power for 10 seconds, the water temperature can reach approximately 85°C. This temperature is basically the lowest boiling point temperature in a suitable living altitude range, which can meet the needs of different users.

[0050] In the above, the preheating stage is a preliminary step before altitude determination in this invention. By heating the water in the drinking water device to a certain temperature, i.e., putting the drinking water device into a slight boiling state, the working time of the subsequent altitude determination stage is reduced. At the same time, the heating device operates at high power in this stage to reduce the user's waiting time. The slight boiling state is the heating state in which the liquid temperature of the drinking water device is close to the actual boiling point temperature of the current region. The initial temperature threshold is a fixed value preset in the drinking water device and is only used in the preheating stage as a determination signal that the drinking water device is about to enter the slight boiling state. The second heating duration is a fixed value preset in the drinking water device, which, together with the preset initial temperature threshold, puts the drinking water device into the slight boiling state. Both the initial temperature threshold and the first heating duration are adjustable values, which facilitates the adjustment and maintenance of the drinking water device by maintenance personnel in the later stage. The preset heating power is a fixed value preset in the drinking water device and is determined according to the specific values ​​of the initial temperature threshold and the second heating duration.

[0051] 2. Altitude determination:

[0052] After the preheating stage is completed, the heating device is kept in heating mode and temperature sampling is activated. Multiple sample values ​​are continuously acquired according to the set sampling period. The acquired temperature sample values ​​are judged to determine whether the current temperature sample value meets the preset conditions, as shown in Figure 2. Specifically, whether the temperature sample value meets the preset conditions is: within a limited period t, the real-time temperature sample value T is detected M times consecutively. n Determine the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M If the temperature difference ΔT1 meets the first preset condition, it is determined that the drinking water equipment is in a high-altitude environment. In this embodiment, the first preset condition is ΔT1 ≤ 1℃, M is set to 3, the sampling period is set to once every 3 seconds, and the limited period t is 9 seconds. For example, four temperature sampling values ​​T1, T2, T3, and T4 are obtained within 9 seconds. It is then determined whether the temperature difference between T4 and T1 is less than or equal to 1℃. If so, it is determined that the drinking water equipment is in a high-altitude environment. When the real-time temperature sampling value T... n Compared with historical temperature sampling value T n-M If the temperature difference △T1 does not meet the first preset condition, that is, △T1>1, it is determined that the drinking water equipment is not in a high-altitude environment. In this case, the preset boiling point temperature is used as the highest heating temperature for heating, and the altitude determination stage is exited.

[0053] Specifically, in the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M When the temperature difference ΔT1 meets the first preset condition, determine the real-time temperature sampling value T collected M times consecutively. n Compared with the previous temperature sampling value T n-1 If the temperature difference ΔT2 meets the second preset condition, the actual boiling point temperature is obtained based on the temperature sampling values ​​recorded within the current limited period t. The second preset condition is ΔT2≤1℃, that is, four temperature sampling values ​​T1, T2, T3, and T4 are obtained within 9 seconds. The temperature difference ΔT2 between the next sampling value and the previous sampling value of this set of data, that is, when T4-T3, T3-T2, and T2-T1 all meet the preset second preset condition, the collected temperature sampling data is judged to be normal data. At the same time, it is determined that the drinking water equipment is in a high-altitude environment, the altitude determination process ends and temperature sampling continues. The actual boiling point temperature of the current altitude region is obtained through the temperature sampling values.

[0054] If the temperature difference ΔT2 mentioned above does not meet the second preset condition, then the cycle time t will begin, as shown in Figure 2, and the temperature sampling value that meets the first preset condition will be recorded until the real-time temperature sampling value T is collected M times consecutively in a certain cycle time t. n Compared with the previous temperature sampling value T n-1The temperature difference ΔT2 continuously meets the second preset condition, for example, acquiring four temperature sampling values ​​T within 9 seconds. n-3 T n-2 T n-1 T n The temperature difference between the next sampled value and the previous sampled value in this set of data, i.e., at T n -T n-1 T n-1 -T n-2 T n-2 -T n-3 When all conditions are met under the second preset condition, the collected temperature sampling data is determined to be normal data, the altitude determination process ends, and the actual boiling point temperature of the current altitude region is obtained. The process of obtaining the actual boiling point temperature is similar to that described above and will not be repeated here.

[0055] The above embodiments determine altitude through secondary and continuous cyclic determinations. Compared to existing technologies that rely solely on the rate of temperature change, this method provides more accurate results and is unaffected by interfering or erroneous data, preventing misjudgments and improving user experience. The need for multiple temperature samplings and cyclic determinations typically occurs in relatively low-altitude areas, such as between 1000m and 2500m, where boiling points are relatively high. Multiple determinations are required to meet the criteria for high-altitude environments. Therefore, this embodiment uses continuous cyclic determinations to cover altitude determination needs in lower-altitude areas, enhancing the versatility and accuracy of the boiling point temperature identification method.

[0056] In one specific embodiment of the present invention, in order to obtain a more accurate actual boiling point temperature, the real-time temperature sampling value T collected continuously M times is used. n Compared with the previous temperature sampling value T n-1 Once the temperature difference ΔT2 meets the second preset condition, the cycle is executed for a limited period t to continuously acquire temperature sampling values ​​and calculate the real-time temperature sampling value T. n Compared with the previous temperature sampling value T n-M The temperature difference ΔT1 is recorded until ΔT1 equals the preset first temperature threshold or meets the preset temperature range, and the current temperature sampling value T is recorded. n This represents the highest heating temperature in this high-altitude environment, i.e., the actual boiling point temperature. The first temperature threshold is 0, and the preset temperature range is between 0 and 0.5℃. This indicates the real-time temperature T during the heating process. 实 In equilibrium, the real-time temperature sample value T n This represents the highest heating temperature in the current high-altitude region. Furthermore, due to the aforementioned steps, data interference has been eliminated, resulting in a more accurate final boiling point temperature and thus improving the user experience.

[0057] In other embodiments of this example, since temperature acquisition is generally achieved through temperature detection devices such as NTC, RTD, thermocouples, or semiconductor sensors, these devices may malfunction during use. For example, in this embodiment, an NTC temperature sensor is used to measure the real-time temperature T of the water dispenser. 实 To conduct the detection, specifically, when the real-time temperature sampling value T... n Compared with historical temperature sampling value T n-M When the temperature difference ΔT1 meets the first preset condition, it is further determined whether ΔT1 meets the third preset condition. If it does, it is judged as a sampling abnormality, heating is stopped, and an alarm is issued to the user. The third preset condition is ΔT1 ≤ -2℃. This embodiment uses real-time temperature sampling value T n Compared with historical temperature sampling value T n-M The temperature difference is used to determine whether there is a sampling abnormality. When the third preset condition is met, it means that the water temperature is decreasing instead of rising when the heating device is working. After ruling out human operation, it can be determined that the NTC sampling is unstable, resulting in abnormal data. At this time, the water dispenser can no longer complete the altitude determination and heating control process, and the alarm prompts the user to turn off the heating device to avoid heating accidents.

[0058] In the above, when the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M When the temperature difference ΔT1 does not meet the first preset condition, i.e., ΔT1 > 1℃, the water dispenser is located in a plain area. It is then determined whether ΔT1 is less than the second temperature threshold, which is 2℃. If so, the heating device is controlled to heat to the target heating temperature and then undergo a delayed heating period for the first heating duration before being turned off. This allows the water in the water dispenser to boil sufficiently for a period of time, facilitating the volatilization of harmful substances and improving water quality. Otherwise, the heating device is controlled to heat to the target heating temperature and then directly turned off. In this embodiment, 2℃ is used as the threshold. When ΔT1 exceeds this value, it indicates that the water dispenser is heating up too quickly, and the heating device must be turned off promptly after reaching the target heating temperature to avoid real-time temperature fluctuations. 实 If the heating temperature exceeds the user's target temperature by a significant margin, or avoid operating the system under low pressure (T) conditions. 实 In cases where the temperature exceeds 100°C, the water at the outlet will evaporate rapidly, causing steam and potentially scalding the user. This is to improve the user experience.

[0059] In a specific implementation of this embodiment, after receiving a heating command during operation, the water dispenser further includes the following steps: determining whether the heating command is the first heating command after the water dispenser is powered on; if so, controlling the water dispenser to sequentially enter the altitude determination stage and the heating control stage to obtain the actual boiling point temperature under the condition of boiling water for the first time after power-on; otherwise, determining the target heating temperature based on the heating command and the obtained actual boiling point temperature, and controlling the operation of the heating device according to the target heating temperature. When the heating command is not the first heating command after the water dispenser is powered on, it means that the water dispenser has boiled water at least once after power-on. At this time, the water dispenser stores the actual boiling point temperature corresponding to the current altitude region. At this time, the heating device can be controlled to perform subsequent heating according to the actual boiling point temperature and the target heating temperature specified by the user. In this implementation, after determining the actual boiling point temperature of the current altitude region, the water dispenser no longer automatically performs altitude determination. This reduces the operating frequency of the water dispenser, lowers power consumption, and reduces user waiting time. At the same time, it determines whether the user moves to a different altitude region based on the power-on status and operating status of the equipment. For example, the actual boiling point temperature is automatically cleared after a power outage, and the altitude determination is performed again after power is restored. This ensures that the user can still accurately obtain the actual boiling point temperature after changing the usage region, thereby improving the heating effect of the water dispenser.

[0060] Specifically, as shown in Figure 3, when it is confirmed that the current heating command is not the first heating command issued by the user, the specific process of determining the target heating temperature by combining the heating command and the boiling point temperature is as follows: Parse the current heating command, obtain the target heating temperature selected by the user in this heating process, and determine whether the target heating temperature is lower than the actual boiling point temperature recorded by the water dispenser. If so, control the heating device to heat according to the target heating temperature; otherwise, assign the value of the actual boiling point temperature to the target heating temperature, and control the heating device to heat according to the updated target heating temperature. In this embodiment, the heating state of the water dispenser is determined by judging whether the target heating temperature requested by the user exceeds the current actual boiling point temperature. The user may accidentally set the target heating temperature too high due to negligence or unfamiliarity when inputting the command. To avoid overheating, the current actual boiling point temperature is used as the maximum heating temperature to limit the real-time temperature T during this heating process. 实 During operation, the target heating temperature value is replaced by assigning the actual boiling point temperature value to the target heating temperature value.

[0061] In this embodiment, the process of controlling the operation of the heating device according to the target heating temperature in the drinking water equipment is specifically as follows: the rated heating power W is... 全 As the initial heating power, the current target heating temperature and the real-time temperature T of the water dispenser are compared. 实If the temperature difference ΔT3 is less than the preset third temperature threshold, then the heating power is reduced to the first heating power, and the current target heating temperature and real-time temperature T of the water dispenser are compared. 实 If the temperature difference is less than the fourth temperature threshold, then the heating power is reduced to the second heating power. Specifically, as shown in Figure 4, let the rated heating power be W. 全 During the heating process of the water dispenser, when the NTC detects the real-time temperature T... 实 -Target heating temperature T 标 When the temperature is <20℃, reduce the heating power to W. 全 / 2, meaning half-power heating is performed, when the NTC detects the real-time temperature T 实 -Target heating temperature T 标 At temperatures below 5℃, the heating power is reduced to 3 / 10W. 全 This means heating with low power to prevent the water from boiling violently and overflowing, posing a safety risk to the user, and to heat it relatively steadily to the boiling point temperature of the user's current area, thus improving the user experience.

[0062] In this embodiment, the boiling point temperature identification method also includes a calibration process: after the water dispenser is powered on for the first time and completes altitude determination and boiling point temperature identification, when the user boils water for the second time, the water dispenser is controlled to enter the preheating stage, altitude determination stage, and heating control stage. By identifying the boiling point of the current altitude region again, the actual boiling point temperature stored in the water dispenser is further calibrated, increasing the sample size of the data, reducing the impact of interference data, and further improving the accuracy of the boiling point temperature identification. In a specific implementation of this embodiment, for user convenience, the secondary boiling point temperature identification process can be manually controlled by the user, and a separate calibration command is provided for the user to select. When the user determines that the current actual boiling point temperature is correct, this process can be skipped and the heating process can be directly entered. When the user is unsure whether the current actual boiling point temperature is consistent with the altitude region, the user can choose to enter the calibration process to complete the further identification of the actual boiling point temperature. At the same time, in the preheating stage of the secondary boiling point temperature identification process, the heating device can refer to the current actual boiling point temperature and set the real-time temperature T. 实 By controlling the temperature value more precisely, the execution time of the altitude determination stage can be reduced, thus reducing the user's waiting time.

[0063] In this embodiment, the water dispenser is also equipped with a power outage protection program, including: recording the power outage duration from power failure to power restoration; when the power outage duration is less than or equal to a preset time threshold, maintaining the water dispenser's operating state before the power outage and retaining the actual boiling point temperature; when the power outage duration exceeds the preset time threshold, determining the water dispenser's operating state and boiling point temperature T based on whether the user issues a recovery command.沸 This implementation determines whether to clear the actual boiling point temperature value by detecting power outages. Power outages include: short-term power outages due to grid fluctuations, long-term power outages during power cuts, and long-term power outages when the user changes their location. When the user changes their location, since it is uncertain whether the altitude of the current location is the same as the original location, the actual boiling point temperature value needs to be cleared, and altitude and boiling point temperature identification need to be performed again. During a long-term power outage during a power cut, since the location of use has not changed, there is no need to clear the actual boiling point temperature value. These two situations cannot be distinguished simply by the duration of the power outage. Therefore, this implementation distinguishes them by setting a recovery function. That is, after the initial power-on, if a power outage is detected in the water dispenser, and the duration of the power outage from the power outage state to the power-on state is less than or equal to a preset time threshold, such as 1 hour, the actual boiling point temperature is retained. If the power outage duration is greater than the preset time threshold, the water dispenser activates the recovery function, prompting the user with a recovery command, and determining whether to retain the actual boiling point temperature value based on the user's actual operation to meet the user's needs in various usage situations.

[0064] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A heating control method for drinking water equipment, characterized in that, include: After detecting that the water dispenser is powered on, the device receives the user's heating command and controls the water dispenser to sequentially enter the altitude determination stage and the heating control stage. Altitude determination stage: The heating device is controlled to operate with a preset heating power, and several temperature sampling values ​​are obtained based on a preset sampling period. The temperature sampling values ​​are used to make a determination. When the temperature sampling values ​​meet the preset conditions, it is determined whether the drinking water equipment is in a high-altitude environment. Heating control stage: When it is determined that the drinking water equipment is not in a high-altitude environment, the heating device is controlled to operate based on the preset boiling point temperature; when it is determined that the drinking water equipment is in a high-altitude environment, heating is performed based on the actual boiling point temperature in that high-altitude environment. Based on the temperature sampling value, a determination is made. When the temperature sampling value meets a preset condition, it is determined whether the water dispenser is in a high-altitude environment. This includes: continuously detecting the real-time temperature sampling value T M times within a limited period t. n Determine the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M The temperature difference ΔT1 is checked against a first preset condition. If the first preset condition is met, the water dispenser is determined to be in a high-altitude environment. The current temperature sampling value is recorded, and the highest heating temperature in the high-altitude environment is obtained, which is used as the actual boiling point temperature in the high-altitude environment. If the first preset condition is not met, the water dispenser is determined to be in a non-high-altitude environment. The target heating temperature is retrieved, and heating is continued until the target heating temperature is reached, after which the heating device is turned off. When the real-time temperature sampling value T... n Compared with historical temperature sampling value T n-M When the temperature difference ΔT1 meets the first preset condition, determine the real-time temperature sampling value T collected M times consecutively. n Compared with the previous temperature sampling value T n-1 Whether the temperature difference ΔT2 meets the second preset condition; if the second preset condition is met, the actual boiling point temperature is obtained based on the temperature sampling value; If the second preset condition is not met, the temperature sampling value that meets the first preset condition is recorded in a cyclic period t until the real-time temperature sampling value T is collected M times consecutively within the current period t. n Compared with the previous temperature sampling value T n-1 If the temperature difference ΔT2 continuously meets the second preset condition, then it is determined that the drinking water equipment is in a high-altitude environment.

2. The heating control method for drinking water equipment according to claim 1, characterized in that, When the real-time temperature sampling value T is collected M times consecutively n Compared with the previous temperature sampling value T n-1 When the temperature difference ΔT2 meets the second preset condition, the cycle is executed for a limited period t, continuously acquiring temperature sampling values ​​until the real-time temperature sampling value T is reached. n Compared with the previous temperature sampling value T n-M The temperature difference ΔT1 is equal to the first temperature threshold, and the real-time temperature sampling value T is recorded. n The highest heating temperature in this high-altitude environment is taken as the actual boiling point temperature in this high-altitude environment.

3. The heating control method for drinking water equipment according to claim 1, characterized in that, When the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M When the temperature difference ΔT1 meets the first preset condition, it continues to determine whether ΔT1 meets the third preset condition. If it does, it is determined to be a sampling abnormality, heating is stopped, and an alarm prompt is issued to the user.

4. The heating control method for drinking water equipment according to claim 1, characterized in that, When the real-time temperature sampling value T n Compared with historical temperature sampling value T n-M If the temperature difference ΔT1 does not meet the first preset condition, it is further determined whether ΔT1 is less than the second temperature threshold. If so, the heating device is controlled to heat to the target heating temperature, and then the heating is delayed for the first heating time before the heating device is turned off. Otherwise, the heating device is controlled to heat to the target heating temperature and then the heating device is turned off directly.

5. The heating control method for drinking water equipment according to claim 1, characterized in that, The altitude determination stage is preceded by a preheating stage, specifically: the heating device is activated to heat the drinking water equipment; when the real-time temperature T is detected... 实 When the preset initial temperature threshold is reached, the rated heating power W is used. 全 The heating device is maintained for a second heating duration, and the water drinking device is controlled to enter a slight boiling state. The water drinking device then enters the altitude determination stage while in the slight boiling state.

6. The heating control method for drinking water equipment according to any one of claims 1-5, characterized in that, When the water dispenser receives a heating command from a user during operation, it determines whether the heating command is the first heating command after the water dispenser is powered on. If so, it controls the water dispenser to sequentially enter the altitude determination stage and the heating control stage. Otherwise, it determines the target heating temperature based on the heating command and the actual boiling point temperature, and the water dispenser controls the operation of the heating device according to the target heating temperature.

7. The heating control method for drinking water equipment according to claim 6, characterized in that, Determining the target heating temperature based on the heating command and boiling point temperature includes: parsing the heating command, obtaining the target heating temperature selected by the user, determining whether the target heating temperature is less than the actual boiling point temperature recorded by the water dispenser, and if so, controlling the heating device to heat according to the target heating temperature; otherwise, assigning the value of the actual boiling point temperature to the target heating temperature, and controlling the heating device to heat according to the updated target heating temperature.

8. The heating control method for drinking water equipment according to claim 6, characterized in that, The drinking water equipment controls the operation of the heating device according to the target heating temperature, specifically: using the rated heating power W 全 As the initial heating power, the current target heating temperature and the real-time temperature T of the water dispenser are compared. 实 If the temperature difference is less than the third temperature threshold, the heating power is reduced to the first heating power, and the current target heating temperature and real-time temperature T of the water dispenser are compared. 实 If the temperature difference is less than the fourth temperature threshold, the heating power will be reduced to the second heating power.

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