System and method for controlling water boiler to stop heating by using air pressure sensor

Abstract

The present invention relates to the technical field of water dispensers. Disclosed are a system and method for controlling a water boiler to stop heating by using an air pressure sensor. The system comprises an air pressure sensing module, configured to detect the air pressure state of a current external environment; a microcontroller module, configured to process a signal from an air pressure sensor; a heating control module, configured to control the operation state of a heating element; a user UI module, configured to control a touch screen and touch buttons thereon; a power management module, configured to manage power supply of all components in the system; and a safety protection module. In the present invention, the local air pressure state is detected by means of the air pressure sensing module, the local altitude is obtained by means of data communication, the local boiling point of water is then calculated, and the highest heating temperature of a machine can be controlled after boiling point information of water is obtained, so that the machine can ensure that the water is just brought to a boil, thereby avoiding risks such as spillover of boiled water due to continuously boiling while ensuring that water is just brought to a boil.

Description

A system and method for controlling a water boiler to stop heating using an air pressure sensor Technical Field

[0001] The present invention relates to the technical field of water dispensers, and in particular to a system and method for controlling a water boiler to stop heating by using an air pressure sensor. Background Art

[0002] A water boiler is a household appliance primarily used to heat water for drinking, cooking, or other uses. A water boiler is typically a small, self-contained appliance that quickly heats water from the tap or other source to hot or boiling temperature.

[0003] In the prior art, a water dispenser is mainly composed of a main control board and a communication board; the main control board is responsible for water production, heating, and temperature detection of the machine; and the communication board is responsible for GPRS communication display.

[0004] However, in actual use, since the installation location of the water dispenser is unclear, it is impossible to accurately control the maximum temperature of the water boiled by the water dispenser. Generally, for the sake of safety, the maximum temperature of the water boiler is set at around 90℃-94℃ to adapt to most installation scenarios. However, for areas with lower altitudes, water at 90℃-94℃ has not really boiled and cannot achieve the purpose of thorough disinfection; but for high-altitude areas, due to the low boiling point of water in this area, the water has boiled, but the water dispenser is still heating incorrectly, causing the water boiler to be easily damaged. In view of this, we propose a system and method for controlling the water boiler to stop heating using an air pressure sensor.

[0005] Summary of the Invention

[0006] In order to make up for the above shortcomings, the present invention provides a system and method for controlling a water boiler to stop heating using an air pressure sensor, aiming to improve the problem in the prior art that different altitudes cause different boiling points of water, thereby affecting the actual use of the water dispenser.

[0007] In order to achieve the above object, the present invention adopts the following technical solution: the system for controlling the water boiler to stop heating by using an air pressure sensor comprises:

[0008] An air pressure sensing module, configured to detect the air pressure state in the current external environment, comprising a sensing control module, a sensing communication module, and a data translation module;

[0009] A microcontroller module is responsible for processing the signal from the air pressure sensor. The microcontroller module includes a data receiving module, a main processing module, and a data storage module;

[0010] A heating control module, used to control the operating state of the heating element, the heating control module includes a temperature detection module, a temperature rising module, and a heating setting module;

[0011] A user UI module, which is used to control the touch screen and the touch buttons thereon. The user UI module includes a digital display module, a UI control module, and a signal processing module;

[0012] A power management module, used to manage the power supply of each component in the system, and the power management module includes a power supply detection module and a protection circuit module;

[0013] The safety protection module is used to ensure that the equipment can operate stably according to the set heating state. The safety protection module includes an abnormality detection module, an abnormality alarm module and a power-off protection module.

[0014] As a further description of the above technical solution:

[0015] The sensor control module is used to control the normal power supply operation of the air pressure sensor, and control it to feedback the corresponding detection value to the sensor communication module according to the current air pressure state. The sensor communication module is used to receive the detection value of the sensor and transmit it to the microcontroller module. The data translation module is used to convert the electrical signal fed back by the sensor into a digital signal that can be recognized by the main processing module, and transmit it to the microcontroller module.

[0016] As a further description of the above technical solution:

[0017] The data receiving module is used to receive the digital signal fed back by the data translation module, and can obtain the current location information through internal GPRS communication and transmit it to the main processing module. It can also filter the signal during data transmission. The signal filtering method used is bandstop filtering to filter the signal during transmission. Its general frequency domain response formula is as follows: H_bandstop(u,v)=H_high(u,v)×(1-H_low(u,v));

[0018] in:

[0019] H_bandstop(u,v) represents the frequency domain response function of the bandstop filter, which is the filter response of the input signal in the frequency domain;

[0020] H_high(u,v) is the frequency domain response function of the high-pass filter;

[0021] H_low(u,v) is the frequency domain response function of the low-pass filter;

[0022] H_low(u,v)) represents the complement of the low-pass filter;

[0023] The main processing module is used to analyze and process the received data and calculate the boiling point of water in different regions. The boiling point calculation process is as follows:

[0024] The relationship between boiling point Y and altitude x is as follows: Y=a+b×x

[0025] Where a = 100.31818, b = -0.00365;

[0026] The data storage module is used to store the heating time, heating efficiency, actual boiling point, and calculated boiling point information during operation, and supports people to edit and adjust the proportional coefficient b through the historical data stored in the data storage module when it is necessary to adjust it.

[0027] As a further description of the above technical solution:

[0028] The temperature detection module is used to detect the current temperature of the water inside the water boiler and continuously feed back the real-time water temperature information to the main processing module. The temperature rising module is used to convert electricity into thermal energy and heat the water inside the water boiler. At the same time, it can feed back the current heating status to the heating setting module. The heating setting module is used to receive the control signal fed back from the main processing module, and can transmit the control information to the temperature rising module after obtaining the feedback signal from the main processing module, so as to control the temperature rising module to stop heating or adjust the heating efficiency.

[0029] As a further description of the above technical solution:

[0030] The digital display module is used to control the touch screen set outside the water boiler, and can present the working status information of the water boiler during the heating process on the touch screen, so that people can observe the working status of the water boiler in real time through the touch screen. The UI control module is used to control the touch signal received by the connected touch screen, and transmit the corresponding click information to the signal processing module according to the actual touch position. The signal processing module is used to receive the touch information received in the UI control module, and integrate it with the control information expressed by the block in the digital display module to obtain complete control information, and transmit the control information to the main processing module.

[0031] As a further description of the above technical solution:

[0032] The power supply detection module is used to detect the current power supply status of the water boiler, and can transmit the current power supply information to the digital display module, so that the digital display module can feedback the current power supply information on its touch screen, and enable people to determine the current power supply status through the information feedback on the touch screen. The protection circuit module is used to optimize the circuit when the current power supply status is not good, including using its internal voltage regulator to stabilize the power supply voltage. At the same time, it can disconnect the circuit when the voltage fluctuates greatly, and feed back the abnormal information to the abnormal detection module, and at the same time digitally feedback the abnormal alarm information through the digital display module.

[0033] As a further description of the above technical solution:

[0034] The abnormality detection module is used to detect various abnormal conditions of the water boiler during use, and can evaluate and analyze whether the abnormal condition will affect the normal operation of the water boiler when receiving an abnormal alarm signal, and generate "operable abnormal condition" and "serious abnormality" judgments based on the judgment results. The abnormal alarm module is used to match the relevant abnormal alarm information with the abnormal condition in the database when the abnormality detection module detects an abnormal condition, and at the same time feed it back to the touch screen through the abnormal classification number of the abnormal condition in the database, and at the same time remind people to check the current operating status of the equipment through sound and light alarms. The power-off protection module is used to transmit the emergency stop signal to the protection circuit module when receiving a "serious abnormality" in the abnormality detection module, and disconnect the equipment through the operation of the protection circuit module.

[0035] In order to achieve the above object, the present invention adopts the following technical solution: a method for controlling a water boiler to stop heating using an air pressure sensor, comprising the following steps:

[0036] S1; calibration value

[0037] The calibration value stored in the E2PROM memory built into the air pressure sensor is read by the microprocessor;

[0038] S2; Value reading

[0039] Read the initial feedback values ​​of the temperature sensor and air pressure sensor inside the water boiler;

[0040] S3; Calculate altitude

[0041] The GPRS signal received by the signal receiving module is transmitted to the main processing module, and the current altitude and location information are analyzed;

[0042] S4; Calculate boiling point

[0043] Calculate the boiling point of water in the current area based on the current altitude information and air pressure information;

[0044] S5; Temperature setting

[0045] The boiling point information of the boiled water calculated in step S4 is read, and the heating temperature threshold information of the current water boiler is set.

[0046] As a further description of the above technical solution:

[0047] The calculation of altitude in S3 will obtain the current location information through GPRS communication, including the following steps:

[0048] S301: GPRS communication

[0049] The signal receiving module sends the positioning requirement information to the nearest signal base station;

[0050] S302: Location Acquisition

[0051] After obtaining the assigned IP address, the current device location is obtained by measuring the signal propagation delay with multiple base stations;

[0052] S303: Signal Transmission

[0053] The obtained positioning information data is transmitted to the main processing module to calculate the altitude information of the current position.

[0054] As a further description of the above technical solution:

[0055] The temperature setting in S5 is used to adjust the heating control module according to the calculated boiling point information of the current position, and includes the following steps:

[0056] S501: Information Integration

[0057] Match and integrate the obtained location information, air pressure information, and current temperature information;

[0058] S502: Threshold calculation

[0059] The main processing module calculates the corresponding boiling point information and transmits the boiling point information to the heating control module;

[0060] S503: Real-time monitoring

[0061] The temperature t of the hot water is detected in real time by the temperature sensor. When the temperature t of the hot water is greater than or equal to the boiling point Y, heating is stopped and the water just boils.

[0062] Compared with the prior art, the present invention has the following beneficial effects:

[0063] 1. In the present invention, the local air pressure state will be detected by the air pressure sensor module, and the local altitude will be obtained through data communication, so as to calculate the local boiling point of boiled water. After obtaining the boiling point information of boiled water, the maximum temperature of the machine can be controlled to ensure that the water is just boiling, which not only ensures that the water is just boiled, but also avoids the risk of continuous boiling and overflow of boiled water.

[0064] 2. In the present invention, the signal will be filtered and standardized during the signal transmission process within the system, so as to ensure that the data received by the main processing module is more reliable, thereby ensuring that it can obtain more accurate boiling point data when calculating the data, and at the same time, the data calculation efficiency of the main processing module can be improved.

[0065] 3. In the present invention, since the atmospheric pressure in high-altitude areas is lower and the relative density of air is also lower, the flow of charge during circuit transmission will also be affected, thereby slowing down the flow of electrons and affecting the stability and quality of the voltage. Therefore, in this device, a protection circuit module is set to stabilize the circuit voltage for protection. At the same time, when the current ambient voltage fluctuates greatly, the abnormal alarm information will be fed back to the safety protection module, and the power-off protection function will be executed to prevent the water boiler from being damaged during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0067] Figure 1 is a system flowchart for controlling a water boiler to stop heating using an air pressure sensor;

[0068] FIG2 is a flowchart of an air pressure sensing module according to the present invention;

[0069] FIG3 is a flowchart of a microcontroller module according to the present invention;

[0070] FIG4 is a flowchart of a heating control module according to the present invention;

[0071] FIG5 is a flowchart of a user UI module of the present invention;

[0072] FIG6 is a flowchart of a power management module according to the present invention;

[0073] FIG7 is a flowchart of a security protection module according to the present invention;

[0074] FIG8 is a schematic diagram showing the relationship between altitude and boiling point according to the present invention;

[0075] FIG9 is a flow chart of the overall method of the present invention;

[0076] FIG10 is a flow chart of the S3 method of the present invention;

[0077] FIG11 is a flow chart of the S5 method of the present invention. DETAILED DESCRIPTION

[0078] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the specification of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0079] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0080] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0081] Referring to Figures 1-8, the present invention provides an embodiment: a system for controlling a water boiler to stop heating using an air pressure sensor, the system comprising:

[0082] An air pressure sensing module, configured to detect the air pressure state in the current external environment, comprising a sensing control module, a sensing communication module, and a data translation module;

[0083] A microcontroller module is responsible for processing the signal from the air pressure sensor. The microcontroller module includes a data receiving module, a main processing module, and a data storage module;

[0084] A heating control module, used to control the operating state of the heating element, the heating control module includes a temperature detection module, a temperature rising module, and a heating setting module;

[0085] A user UI module, which is used to control the touch screen and the touch buttons thereon. The user UI module includes a digital display module, a UI control module, and a signal processing module;

[0086] A power management module, used to manage the power supply of each component in the system, and the power management module includes a power supply detection module and a protection circuit module;

[0087] The safety protection module is used to ensure that the equipment can operate stably according to the set heating state. The safety protection module includes an abnormality detection module, an abnormality alarm module and a power-off protection module.

[0088] Specifically, the sensor control module is used to control the normal power supply operation of the air pressure sensor, and control it to feedback the corresponding detection value to the sensor communication module according to the current air pressure state. The sensor communication module is used to receive the detection value of the sensor and transmit it to the microcontroller module. The data translation module is used to convert the electrical signal fed back by the sensor into a digital signal that can be recognized by the main processing module, and transmit it to the microcontroller module.

[0089] The data receiving module is used to receive the digital signal fed back by the data translation module, and can obtain the current location information through internal GPRS communication and transmit it to the main processing module. It can also filter the signal during data transmission. The signal filtering method used is bandstop filtering to filter the signal during transmission. Its general frequency domain response formula is as follows: H_bandstop(u,v)=H_high(u,v)×(1-H_low(u,v));

[0090] in:

[0091] H_bandstop(u,v) represents the frequency domain response function of the bandstop filter, which is the filter response of the input signal in the frequency domain;

[0092] H_high(u,v) is the frequency domain response function of the high-pass filter;

[0093] H_low(u,v) is the frequency domain response function of the low-pass filter;

[0094] H_low(u,v)) represents the complement of the low-pass filter;

[0095] The main processing module is used to analyze and process the received data and calculate the boiling point of water in different regions. The boiling point calculation process is as follows:

[0096] The relationship between boiling point Y and altitude x is as follows: Y=a+b×x

[0097] Where a = 100.31818, b = -0.00365;

[0098] After calculation, the data related to its altitude and boiling point are as follows:

[0099] The data storage module is used to store the heating time, heating efficiency, actual boiling point, and calculated boiling point information during operation, and supports people to edit and adjust the proportional coefficient b through the historical data stored in the data storage module when it is necessary to adjust it.

[0100] The temperature detection module is used to detect the current temperature of the water inside the water boiler and continuously feed back the real-time water temperature information to the main processing module. The temperature rising module is used to convert electricity into thermal energy and heat the water inside the water boiler. At the same time, it can feed back the current heating status to the heating setting module. The heating setting module is used to receive the control signal fed back from the main processing module, and can transmit the control information to the temperature rising module after obtaining the feedback signal from the main processing module, so as to control the temperature rising module to stop heating or adjust the heating efficiency.

[0101] The digital display module is used to control the touch screen set outside the water boiler, and can present the working status information of the water boiler during the heating process on the touch screen, so that people can observe the working status of the water boiler in real time through the touch screen. The UI control module is used to control the touch signal received by the connected touch screen, and transmit the corresponding click information to the signal processing module according to the actual touch position. The signal processing module is used to receive the touch information received in the UI control module, and integrate it with the control information expressed by the block in the digital display module to obtain complete control information, and transmit the control information to the main processing module.

[0102] The power supply detection module is used to detect the current power supply status of the water boiler, and can transmit the current power supply information to the digital display module, so that the digital display module can feedback the current power supply information on its touch screen, and enable people to determine the current power supply status through the information fed back on the touch screen. The protection circuit module is used to optimize the circuit when the current power supply status is not good, including using its internal voltage stabilizer to stabilize the power supply voltage. In addition, the protection circuit module supports setting the voltage fluctuation threshold within a range, and can disconnect the circuit when the voltage fluctuation is large, and feed back the abnormal information to the abnormal detection module, and at the same time digitally feedback the abnormal alarm information through the digital display module.

[0103] The abnormality detection module is used to detect various abnormal conditions of the water boiler during use, and can evaluate and analyze whether the abnormal condition will affect the normal operation of the water boiler when receiving an abnormal alarm signal, and generate "operable abnormal condition" and "serious abnormality" judgments based on the judgment results, wherein the "operable abnormal condition" includes an early warning of the voltage condition and an early warning of the presence of scale inside the water storage container, thereby affecting the heating efficiency, in order to remind the user to pay attention to the relevant abnormal conditions. The abnormal alarm module is used to match the relevant abnormal alarm information with the abnormal condition in the database when the abnormal condition is detected, and at the same time feedback it to the touch screen through the abnormal classification number of the abnormal condition in the database. The abnormal alarm module stores common abnormal condition codes, so that people can judge the specific abnormal condition inside the water boiler through the code information fed back by the digital display screen, and at the same time remind people to check the current operating status of the device through sound and light alarms. The power-off protection module is used to transmit an emergency stop signal to the protection circuit module when receiving a "serious abnormality" in the abnormality detection module, and disconnect the device through the operation of the protection circuit module, thereby avoiding damage to the device caused by continuous heating.

[0104] 9-11 , the present invention provides an embodiment: a method for controlling a water boiler to stop heating using an air pressure sensor, comprising the following steps:

[0105] S1; calibration value

[0106] The calibration value stored in the E2PROM memory built into the air pressure sensor is read by the microprocessor;

[0107] S2; Value reading

[0108] Read the initial feedback values ​​of the temperature sensor and air pressure sensor inside the water boiler;

[0109] S3; Calculate altitude

[0110] The GPRS signal received by the signal receiving module is transmitted to the main processing module, and the current altitude and location information are analyzed;

[0111] S4; Calculate boiling point

[0112] Calculate the boiling point of water in the current area based on the current altitude information and air pressure information;

[0113] S5; Temperature setting

[0114] The boiling point information of the boiled water calculated in step S4 is read, and the heating temperature threshold information of the current water boiler is set.

[0115] Specifically, the altitude calculation in S3 will obtain the current location information through GPRS communication, including the following steps:

[0116] S301: GPRS communication

[0117] The signal receiving module sends the positioning requirement information to the nearest signal base station;

[0118] S302: Location Acquisition

[0119] After obtaining the assigned IP address, the current device location is obtained by measuring the signal propagation delay with multiple base stations;

[0120] S303: Signal Transmission

[0121] The obtained positioning information data is transmitted to the main processing module to calculate the altitude information of the current position.

[0122] The temperature setting in S5 is used to adjust the heating control module according to the calculated boiling point information of the current position, and includes the following steps:

[0123] S501: Information Integration

[0124] Match and integrate the obtained location information, air pressure information, and current temperature information;

[0125] S502: Threshold calculation

[0126] The main processing module calculates the corresponding boiling point information and transmits the boiling point information to the heating control module;

[0127] S503: Real-time monitoring

[0128] The temperature t of the hot water is detected in real time by the temperature sensor. When the temperature t of the hot water is greater than or equal to the boiling point Y, heating is stopped and the water just boils.

[0129] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A system for controlling a water boiler to stop heating by using an air pressure sensor, characterized in that: The system for controlling a water boiler to stop heating by using an air pressure sensor comprises: An air pressure sensing module, used to detect the air pressure state in the current external environment, the air pressure sensing module includes a sensing control module, a sensing communication module and a data translation module; A microcontroller module is responsible for processing the signal from the air pressure sensor, and the microcontroller module includes a data receiving module, a main processing module, and a data storage module; A heating control module, used to control the operating state of the heating element, the heating control module includes a temperature detection module, a temperature rising module, and a heating setting module; A user UI module, used to control the touch screen and the touch buttons thereon, the user UI module includes a digital display module, a UI control module, and a signal processing module; A power management module, used to manage the power supply of each component in the system, the power management module includes a power supply detection module and a protection circuit module; The safety protection module is used to ensure that the equipment can operate stably according to the set heating state. The safety protection module includes an abnormality detection module, an abnormality alarm module and a power-off protection module.

2. A system for controlling a water boiler to stop heating by using an air pressure sensor according to claim 1, characterized in that: The sensor control module is used to control the normal power supply operation of the air pressure sensor, and control it to feedback the corresponding detection value to the sensor communication module according to the current air pressure state. The sensor communication module is used to receive the detection value of the sensor and transmit it to the microcontroller module. The data translation module is used to convert the electrical signal fed back by the sensor into a digital signal that can be recognized by the main processing module, and transmit it to the microcontroller module.

3. A system for controlling a water boiler to stop heating by using an air pressure sensor according to claim 1, characterized in that: The data receiving module is used to receive the digital signal fed back by the data translation module, and can obtain the current location information through the internal GPRS communication and transmit it to the main processing module, and can filter the signal during the data transmission process, wherein the signal filtering method adopted is band stop filtering to filter the signal during the transmission process, and its general frequency domain response formula is as follows: H_bandstop(u,v)=H_high(u,v)×(1-H_low(u,v)); in: H_bandstop(u,v) represents the frequency domain response function of the bandstop filter, which is the filter response of the input signal in the frequency domain; H_high(u,v) is the frequency domain response function of the high-pass filter; H_low(u,v) is the frequency domain response function of the low-pass filter; (1-H_low(u,v)) represents the complement of the low-pass filter; The main processing module is used to analyze and process the received data and calculate the boiling point of water in different regions, wherein the boiling point calculation process is as follows: The boiling point Y is related to the altitude x as follows: Y=a+b×x Where a = 100.31818, b = -0.00365; The data storage module is used to store the heating time, heating efficiency, actual boiling point, and calculated boiling point information during operation, and supports people to edit and adjust the proportional coefficient b through the historical data stored in the data storage module when it is necessary to adjust it.

4. A system for controlling a water boiler to stop heating by using an air pressure sensor according to claim 1, characterized in that: The temperature detection module is used to detect the current temperature of the water inside the water boiler, and continuously feeds back the real-time water temperature information to the main processing module. The temperature rising module is used to convert electricity into thermal energy and heat the water inside the water boiler. At the same time, it can feed back the current heating status to the heating setting module. The heating setting module is used to receive the control signal fed back from the main processing module, and can transmit the control information to the temperature rising module after obtaining the feedback signal from the main processing module, so as to control the temperature rising module to stop heating or adjust the heating efficiency.

5. A system for controlling a water boiler to stop heating by using an air pressure sensor according to claim 1, characterized in that: The digital display module is used to control the touch screen arranged outside the water boiler, and can present the working status information of the water boiler during the heating process on the touch screen, so that people can observe the working condition of the water boiler in real time through the touch screen. The UI control module is used to control the touch signal received by the connected touch screen, and transmit the corresponding click information to the signal processing module according to the actual touch position. The signal processing module is used to receive the touch information received in the UI control module, and integrate it with the control information expressed by the block in the digital display module, so as to obtain complete control information, and transmit the control information to the main processing module.

6. A system for controlling a water boiler to stop heating by using an air pressure sensor according to claim 1, characterized in that: The power supply detection module is used to detect the current power supply status of the water boiler, and can transmit the current power supply information to the digital display module, so that the digital display module can feedback the current power supply information on its touch screen, and enable people to determine the current power supply status through the information fed back on the touch screen. The protection circuit module is used to optimize the circuit when the current power supply status is not good, including using its internal voltage stabilizer to stabilize the power supply voltage. At the same time, it can disconnect the circuit when the voltage fluctuates greatly, and feed back the abnormal information to the abnormal detection module, and digitally display the abnormal alarm information through the digital display module.

7. A system for controlling a water boiler to stop heating by using an air pressure sensor according to claim 1, characterized in that: The abnormality detection module is used to detect various abnormal conditions of the water boiler during use, and can evaluate and analyze whether the abnormal condition will affect the normal operation of the water boiler when receiving the abnormal alarm signal, and generate "operable abnormal condition" and "serious abnormality" judgments based on the judgment results. The abnormal alarm module is used to match the relevant abnormal alarm information with the abnormal condition in the database when the abnormal detection module detects an abnormal condition, and at the same time feed it back to the touch screen through the abnormal classification number of the abnormal condition in the database, and at the same time remind people to check the current operating status of the equipment through sound and light alarms. The power-off protection module is used to transmit the emergency stop signal to the protection circuit module when receiving "serious abnormality" in the abnormality detection module, and disconnect the equipment through the operation of the protection circuit module.

8. A method for controlling a water boiler to stop heating using an air pressure sensor, characterized in that: The following steps are involved: S1； Calibration value The calibration value stored in the E2PROM memory built into the air pressure sensor is read by the microprocessor; S2; numerical reading Read the initial feedback values ​​of the temperature sensor and air pressure sensor inside the water boiler; S3； Calculating Altitude According to the GPRS signal received in the signal receiving module, it is transmitted to the main processing module, and the current altitude and location information are analyzed; S4； Calculate boiling point Calculate the boiling point of water in the current area based on the current altitude information and air pressure information; S5； Temperature settings The boiling point information of the boiled water calculated in step S4 is read, and the heating temperature threshold information of the current water boiler is set.

9. A method for controlling a water boiler to stop heating by using an air pressure sensor according to claim 8, characterized in that: The calculation of altitude in S3 will obtain the current location information through GPRS communication, including the following steps: S301: GPRS communication The signal receiving module sends the positioning requirement information to the nearest signal base station; S302: Location acquisition After obtaining the assigned IP address, the current device location is obtained by measuring the signal propagation delay with multiple base stations; S303: Signal transmission The obtained positioning information data is transmitted to the main processing module to calculate the altitude information of the current position.

10. The method of controlling a water boiler to stop heating by using an air pressure sensor according to claim 8, characterized in that: The temperature setting in S5 is used to adjust the heating control module according to the calculated boiling point information of the current position, and includes the following steps: S501: Information Integration Match and integrate the obtained location information, air pressure information, and current temperature information accordingly; S502: Threshold calculation The main processing module calculates the corresponding boiling point information and transmits the boiling point information to the heating control module; S503: Real-time monitoring The temperature t of the hot water is detected in real time by the temperature sensor. When the temperature t of the hot water is greater than or equal to the boiling point Y, heating is stopped and the water just boils.

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