Water heater detection method, system, device, and medium

Abstract

The application relates to a water heater detection method, system, device and medium, and relates to the technical field of water heaters. The method is applied to an intelligent temperature display system of a water heater and comprises the following steps: according to a water flow detection signal, a work confirmation signal is sent to a water heater control system, a work feedback signal is received, and temperature detection information is acquired according to the work feedback signal; the work feedback signal is a feedback signal sent by the water heater control system to the work confirmation signal; according to the temperature detection information, a water outlet use signal is sent to the water heater control system; the water outlet use signal triggers the water heater control system to generate a water flow sensor detection result of the water heater, so that fault detection of the water flow sensor is realized; when the water flow sensor is faulty, the water heater can timely detect and judge the fault, and the safety is improved.

Description

Technical Field

[0001] This application relates to the field of water heater technology, and in particular to a method, system, equipment and medium for testing water heaters. Background Technology

[0002] Currently, the power-off technology in water heaters on the market mainly relies on water flow sensors to achieve this. These sensors are typically installed inside the water heater. When a user uses hot water, the water heater detects the water flow and cuts off power to the heater, ensuring safety. However, existing water heater detection technology cannot detect malfunctions in the water flow sensor. In cases of faults such as rotor jamming, the sensor cannot output a square wave when the user uses water, preventing the water heater from cutting off power and posing a significant safety hazard. Summary of the Invention

[0003] This application provides a detection method, system, device, and medium for water heaters to enable fault detection of the water flow sensor in the water heater. When the water flow sensor malfunctions, the water heater can detect and determine the fault in a timely manner, thereby improving safety.

[0004] In a first aspect, this application provides a method for detecting a water heater, applied to an intelligent temperature display system for the water heater, comprising:

[0005] Based on the water flow detection signal, a work confirmation signal is sent to the water heater control system;

[0006] The system receives a work feedback signal and obtains temperature detection information based on the work feedback signal. The work feedback signal is a feedback signal sent by the water heater control system in response to the work confirmation signal.

[0007] Based on the temperature detection information, a water usage signal is sent to the water heater control system. The water usage signal is used to trigger the water heater control system to generate the water flow sensor detection result of the water heater.

[0008] Optionally, the intelligent temperature display system is installed at the showerhead of the water heater, and the water flow detection signal is a signal generated by power generation based on the water flow at the showerhead. Sending a working confirmation signal to the water heater control system based on the water flow detection signal includes:

[0009] Acquire water flow detection signals;

[0010] Determine the water flow pressure value corresponding to the water flow detection signal;

[0011] When the water flow pressure value is greater than the preset water flow pressure threshold, the operation confirmation signal is generated and sent to the water heater control system.

[0012] Optionally, sending a water usage signal to the water heater control system based on the temperature detection information includes:

[0013] When the temperature detection information meets the preset first temperature detection condition, the hot water usage signal corresponding to the first temperature detection condition is sent to the water outlet usage signal as the hot water usage signal. The hot water usage signal is used to trigger the water heater control system to execute the preset water flow sensor fault detection program. The water flow sensor detection result includes the fault detection result output by the water flow sensor fault detection program.

[0014] When the temperature detection information meets the preset second temperature detection condition, the cold water usage signal corresponding to the second temperature detection condition is sent to the water outlet usage signal as the water heater control system. The cold water usage signal is used to trigger the water heater control system to stop executing the water flow sensor fault detection program.

[0015] Optionally, temperature detection information is obtained based on the working feedback signal, including:

[0016] When the working feedback signal is a sensor not working signal, the detected water flow temperature information is acquired;

[0017] Determine the water temperature detection duration corresponding to the water flow temperature information, and then define the water flow temperature information and the water temperature detection duration as the temperature detection information.

[0018] Optionally, before sending the water usage signal to the water heater control system, the method further includes:

[0019] When the water flow temperature information exceeds a preset ambient temperature threshold and the water temperature detection time reaches a preset first detection time threshold, it is determined that the temperature detection information meets the first temperature detection condition.

[0020] When the water flow temperature information is less than a preset ambient temperature threshold and the water temperature detection time reaches a preset second detection time threshold, it is determined that the temperature detection information meets the second temperature detection condition, and the second detection time threshold is greater than the first detection time threshold.

[0021] Secondly, this application provides a method for detecting a water heater, applied to the water heater control system, comprising:

[0022] Receive a work confirmation signal, wherein the work confirmation signal is a signal sent by the intelligent temperature display system of the water heater;

[0023] Based on the work confirmation signal, the working status of the water flow sensor in the water heater is determined;

[0024] Based on the operating status, a working feedback signal is sent to the intelligent temperature display system;

[0025] The system receives a water usage signal sent by the intelligent temperature display system. The water usage signal is a signal sent by the intelligent temperature display system based on temperature detection information, which is the detection information obtained by the intelligent temperature display system based on the working feedback signal.

[0026] The water flow sensor detects the water flow signal and obtains the detection result.

[0027] Optionally, the step of performing water flow sensor detection based on the water usage signal to obtain water flow sensor detection results includes:

[0028] When the water outlet signal is a hot water signal, a preset water flow sensor fault detection program is triggered to execute. The water flow sensor fault detection program is used to detect the water flow sensor.

[0029] The fault detection result output by the water flow sensor fault detection program is determined as the water flow sensor detection result.

[0030] Thirdly, this application provides an intelligent temperature display system for a water heater, comprising:

[0031] The operation confirmation signal sending module is used to send an operation confirmation signal to the water heater control system based on the water flow detection signal;

[0032] The temperature detection information acquisition module is used to receive the work feedback signal and acquire temperature detection information based on the work feedback signal. The work feedback signal is the feedback signal sent by the water heater control system in response to the work confirmation signal.

[0033] The water outlet usage signal sending module is used to send a water outlet usage signal to the water heater control system based on the temperature detection information. The water outlet usage signal is used to trigger the water heater control system to generate the water flow sensor detection result of the water heater.

[0034] Fourthly, this application provides a water heater control system for a water heater, comprising:

[0035] The working confirmation signal receiving module is used to receive the working confirmation signal, which is a signal sent by the intelligent temperature display system of the water heater;

[0036] The working status confirmation module is used to determine the working status of the water flow sensor in the water heater based on the working confirmation signal.

[0037] The working feedback signal sending module is used to send a working feedback signal to the intelligent temperature display system based on the working status;

[0038] The water outlet usage signal receiving module is used to receive the water outlet usage signal sent by the intelligent temperature display system. The water outlet usage signal is a signal sent by the intelligent temperature display system based on temperature detection information, which is the detection information obtained by the intelligent temperature display system based on the working feedback signal.

[0039] The detection module is used to perform water flow sensor detection based on the water usage signal to obtain the water flow sensor detection result.

[0040] Fifthly, this application provides a water heater device, including: an intelligent temperature display system as described in the third aspect and a water heater control system as described in the fourth aspect, wherein the intelligent temperature display system and the water heater control system are wirelessly connected.

[0041] In a sixth aspect, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the water heater detection method as described in any embodiment of the first aspect or the steps of the water heater detection method as described in any embodiment of the second aspect.

[0042] In summary, this embodiment of the application uses an intelligent temperature display system to send a work confirmation signal to the water heater control system based on the water flow detection signal, receive a work feedback signal, and obtain temperature detection information based on the work feedback signal. The work feedback signal is the feedback signal sent by the water heater control system in response to the work confirmation signal. Based on the temperature detection information, a water outlet usage signal is sent to the water heater control system. The water outlet usage signal triggers the water heater control system to generate the water flow sensor detection result of the water heater. This enables mutual detection between the intelligent temperature display system and the water flow sensor of the water heater control system to determine whether the water flow sensor is stuck or malfunctioning, thus achieving water flow sensor fault detection. When the water flow sensor malfunctions, the water heater can detect and determine the fault in a timely manner, solving the problem that existing water heaters cannot detect water flow sensor faults and improving the safety of the water heater. Attached Figure Description

[0043] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0044] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 A flowchart illustrating the intelligent temperature display system side of a water heater detection method provided in this application embodiment;

[0046] Figure 2 This is a schematic flowchart of the steps of a water heater detection method provided by an optional embodiment of this application on the side of the intelligent temperature display system;

[0047] Figure 3 This is a schematic diagram of an intelligent temperature display system for a water heater provided in an optional embodiment of this application;

[0048] Figure 4 This is a schematic flowchart of a water heater detection method provided in an optional embodiment of this application, on the control system side of the water heater.

[0049] Figure 5 A structural block diagram of an intelligent temperature display system for a water heater provided in this application embodiment;

[0050] Figure 6 A structural block diagram of a water heater control system provided in this application embodiment;

[0051] Figure 7 This is a schematic diagram of the structure of a water heater provided in an embodiment of this application. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] In related technologies, the water flow sensor used in electric water heaters is a Hall effect magnetic sensor. When a user uses hot water, the water flow drives the magnetic rotor of the water flow sensor to rotate. The greater the water flow and the faster the rotation speed, the higher the frequency of the square wave output by the Hall effect magnetic sensor. When the user stops using water, the magnetic rotor stops rotating, and the Hall effect sensor only outputs a high or low level. At this time, the electric water heater cannot determine whether the water flow sensor is stuck or has other faults based on the high or low level. Therefore, when the rotor of the water flow sensor is stuck, the water flow sensor cannot output a square wave when the user uses water, and the electric water heater cannot detect this fault.

[0054] To address the aforementioned issues, this application provides a detection method, system, device, and medium for a water heater, applied to an intelligent temperature display system for a water heater. Based on a water flow detection signal, a working confirmation signal is sent to the water heater control system, a working feedback signal is received, and temperature detection information is obtained based on the working feedback signal. The working feedback signal is the feedback signal sent by the water heater control system in response to the working confirmation signal. Based on the temperature detection information, a water outlet usage signal is sent to the water heater control system. This triggers the water heater control system to generate the water flow sensor detection result, thereby enabling mutual detection between the intelligent temperature display system and the water flow sensor of the water heater control system to determine whether the water flow sensor is stuck or malfunctioning—that is, water flow sensor fault detection. When a water flow sensor malfunctions, the water heater can promptly detect and determine the fault, improving safety.

[0055] To facilitate understanding of the embodiments of this application, further explanations and descriptions will be provided below in conjunction with the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this application.

[0056] Figure 1 This is a flowchart illustrating a smart temperature display system for a water heater detection method provided in this application embodiment. In specific implementation, the water heater detection method provided in this application embodiment can be applied to a smart temperature display system for a water heater. The water heater can include a smart temperature display system and a water heater control system. The smart temperature display system sends a working confirmation signal to the water heater control system to obtain temperature detection information based on feedback signals from the water heater control system. Then, based on the temperature detection information, it sends a water outlet usage signal to the water heater control system. This water outlet usage signal triggers the water heater control system to generate the water flow sensor detection result, thereby achieving water flow sensor fault detection. Figure 1 As shown, the water heater testing method provided in this application embodiment may specifically include the following steps:

[0057] Step 110: Based on the water flow detection signal, send a working confirmation signal to the water heater control system.

[0058] In this embodiment, the intelligent temperature display system can determine that the user is using water based on the water flow detection signal, such as whether the user is using hot water, cold water, or mixed water. The intelligent temperature display system can generate a working confirmation signal based on the water flow detection signal and send the working confirmation signal to the water heater control system, thereby triggering the water heater control system to determine the working status of the water flow sensor through the working confirmation signal.

[0059] In specific implementations, the intelligent temperature display system in this application embodiment can be installed at the main outlet or cold and hot water inlet of the water heater's mixing valve, and the water heater control system can be installed in the entire water heater unit; this application does not impose any restrictions on this. The intelligent temperature display system can communicate bidirectionally with the water heater control system via wired or wireless communication, thereby enabling the intelligent temperature display system to send a work confirmation signal to the water heater control system and also receive work feedback signals sent by the water heater control system.

[0060] In practical applications, the intelligent temperature display system can be equipped with a water flow generator. When a user turns on the water valve of the water heater, both hot and cold water will drive the water flow generator to work. At this time, the water flow generator generates a water flow detection signal. The intelligent temperature display system can determine that the user is using water based on the water flow detection signal, and then generate a work confirmation signal based on the water flow detection signal and send the work confirmation signal to the water heater control system.

[0061] Step 120: Receive the working feedback signal and obtain temperature detection information based on the working feedback signal.

[0062] The working feedback signal is a feedback signal sent by the water heater control system in response to the working confirmation signal.

[0063] Specifically, the temperature detection information may include water flow temperature information and water temperature detection duration. The water flow temperature information may be the temperature information obtained by the intelligent display system through temperature detection of the water flow. The intelligent temperature display system can continuously detect the temperature of the water flow and obtain the temperature detection duration corresponding to the water flow temperature information by recording the temperature detection duration. This application embodiment does not limit this.

[0064] In this embodiment, after receiving the working confirmation signal from the intelligent temperature display system, the water heater control system can confirm the working status of the water flow sensor and obtain a working feedback signal. This feedback signal can be divided into a working signal and a non-working signal. Specifically, when the water flow sensor is confirmed to be in a working state, the water heater control system generates a working signal as a working feedback signal and sends it to the intelligent temperature display system; when the water flow sensor is confirmed to be in a non-working state, it generates a non-working signal as a working feedback signal and sends it to the intelligent temperature display system. Upon receiving the working feedback signal, the intelligent temperature display system can continuously monitor the water temperature when the working feedback signal is non-working, obtaining water temperature information and the water temperature monitoring duration.

[0065] Step 130: Based on the temperature detection information, send a water usage signal to the water heater control system.

[0066] The water outlet signal is used to trigger the water heater control system to generate the water flow sensor detection result of the water heater.

[0067] Specifically, the water usage signal can be divided into hot water usage signal and cold water usage signal, and this application embodiment does not limit this; the water flow sensor detection result can be divided into normal detection result and fault detection result, and this application embodiment does not limit this either.

[0068] Specifically, after acquiring temperature detection information, the intelligent temperature display system can determine whether the water heater is dispensing hot or cold water, i.e., whether the user is using hot or cold water. When it determines that the user is using hot water, it generates a hot water usage signal as the water dispensing signal and sends it to the water heater control system. Upon receiving the hot water usage signal, the control system checks the water flow sensor to determine if it is malfunctioning. If a malfunction is detected, a fault detection result is generated; if no malfunction is detected, a normal detection result is generated. When it determines that the user is using cold water, the intelligent temperature display system generates cold water usage information, triggering the water heater control system to stop the water flow sensor detection. By using the water dispensing signal to trigger the water heater control system to generate the water flow sensor detection result, fault detection of the water flow sensor is achieved. When a malfunction occurs, the water heater can detect and determine the fault promptly, improving safety.

[0069] In specific implementation, to determine whether a user is using hot or cold water, this embodiment of the application can preset a temperature threshold and a temperature detection duration threshold. When the water flow temperature in the temperature detection information exceeds the temperature threshold and the temperature detection duration exceeds the temperature detection duration threshold, it can be determined that the user is using hot water. At this time, the intelligent temperature display system can generate a hot water usage signal based on the temperature detection information as a water dispensing signal. When the water flow temperature in the temperature detection information is lower than the temperature threshold and the temperature detection duration exceeds the temperature detection duration threshold, it can be determined that the user is using cold water. At this time, the intelligent temperature display system can generate a cold water usage signal based on the temperature detection information as a water dispensing signal.

[0070] As can be seen, the embodiments of this application use an intelligent temperature display system to send a work confirmation signal to the water heater control system based on the water flow detection signal, receive a work feedback signal, and obtain temperature detection information based on the work feedback signal. The work feedback signal is the feedback signal sent by the water heater control system in response to the work confirmation signal. Based on the temperature detection information, a water outlet usage signal is sent to the water heater control system. The water outlet usage signal triggers the water heater control system to generate the water flow sensor detection result of the water heater, thereby realizing the fault detection of the water flow sensor. When the water flow sensor malfunctions, the water heater can detect and judge the fault in a timely manner, solving the problem that existing water heaters cannot detect faults in the water flow sensor and improving the safety of the water heater.

[0071] Reference Figure 2 This illustration shows a flowchart of an intelligent temperature display system for a water heater detection method according to an optional embodiment of this application. The method specifically includes the following steps:

[0072] Step 210: Based on the water flow detection signal, send a working confirmation signal to the water heater control system.

[0073] In an optional embodiment, the intelligent temperature display system in this application embodiment can be installed at the shower head of the water heater. The water flow detection signal is a signal generated by generating electricity based on the water flow at the shower head. Based on the water flow detection signal, a work confirmation signal is sent to the water heater control system. Specifically, this may include: acquiring the water flow detection signal; determining the water flow pressure value corresponding to the water flow detection signal; generating the work confirmation signal when the water flow pressure value is greater than a preset water flow pressure threshold, and sending the work confirmation signal to the water heater control system.

[0074] In a specific implementation, the intelligent temperature display system in this application embodiment can be installed at the showerhead of the water heater, or it can be installed at the main outlet of the mixing valve of the water heater or the inlet of the hot and cold water. This application does not impose any restrictions on this. The intelligent temperature display system can be equipped with a water flow generator. When the user uses water, the water flows through the showerhead and then through the water flow generator. At this time, the water flow generator can generate electricity based on the water flow rate, producing a water flow detection signal.

[0075] In practical applications, this embodiment can detect the water flow sensor of the water heater only when the user is using water. Specifically, the greater the water flow, the greater the voltage generated by the water flow generator when generating electricity based on the water flow, i.e., the greater the water flow voltage value corresponding to the water flow detection signal. When the water flow is small or there is no water flow, the water flow voltage value corresponding to the water flow detection signal generated by the water flow generator is smaller, or the water flow generator does not generate electricity, and the water flow voltage value is 0. Therefore, this embodiment can preset a water flow voltage threshold so that when the intelligent temperature display system detects the water flow detection signal and determines that the water flow voltage value corresponding to the water flow voltage signal is greater than the preset water flow voltage threshold, a working confirmation signal is generated.

[0076] As an example, refer to Figure 3 , Figure 3 This is a diagram illustrating the components of the intelligent temperature display system for the water heater provided in this application. Figure 3 As shown, the intelligent temperature display system can include a water flow generator, a power module, a main control MCU, a temperature sensor, a button and display module, and a communication module. Specifically, the water flow generator generates electricity using water flow, producing a power signal. This power signal is output to the power module, which divides the voltage to obtain a water flow detection signal. The power module then outputs this signal to the main control MCU. Upon detecting the water flow detection signal, the main control MCU generates a working confirmation signal when the corresponding water flow voltage value exceeds a preset threshold. This confirmation signal is then sent to the water heater control system via the communication module.

[0077] Step 220: Receive the work feedback signal.

[0078] The working feedback signal is a feedback signal sent by the water heater control system in response to the working confirmation signal.

[0079] In practical implementation, when a user uses hot water, the water heater's intelligent temperature display system starts working. Based on the water flow detection signal, the intelligent temperature display system generates a working confirmation signal and sends it to the water heater control system. The water heater control system then confirms the working status of the water flow sensor based on this confirmation signal. If the water flow sensor is not damaged, it and the intelligent temperature display system can start working simultaneously. When the water heater control system confirms that the water flow sensor is working, it generates a sensor working signal as a feedback signal and sends it to the intelligent temperature display system. Once the intelligent temperature display system determines that the water flow sensor is working normally, it can stop the subsequent fault detection process. If the water flow sensor is damaged, it cannot work normally. In this case, the water heater control system confirms that the water flow sensor is not working and generates a sensor not working signal as a feedback signal and sends it to the intelligent temperature display system. Once the intelligent temperature display system determines that the water flow sensor is not working normally, it can continue the subsequent fault detection process.

[0080] Step 230: When the working feedback signal is a sensor not working signal, acquire the detected water flow temperature information.

[0081] In this embodiment, the intelligent temperature display system can detect the temperature of the water flow and obtain water flow temperature information when the working feedback signal is a sensor not working signal.

[0082] As an example, refer to Figure 3 The intelligent temperature display system can continuously detect the water flow temperature through a temperature sensor to obtain temperature sensor data. The main control MCU in the intelligent temperature display system can be connected to the temperature sensor to obtain the temperature sensor data, determine the water flow temperature based on the temperature sensor data, and obtain water flow temperature information.

[0083] Step 240: Determine the water temperature detection duration corresponding to the water flow temperature information, and determine the water flow temperature information and the water temperature detection duration as the temperature detection information.

[0084] In practical implementation, the main control MCU in the intelligent temperature display system can determine the continuous detection duration of the water flow temperature when determining the water flow temperature information, obtain the water temperature detection duration, and use the water flow temperature information and the water temperature detection duration as temperature detection information.

[0085] Step 250: When the water flow temperature information exceeds a preset ambient temperature threshold and the water temperature detection time reaches a preset first detection time threshold, it is determined that the temperature detection information meets the first temperature detection condition.

[0086] Specifically, the ambient temperature threshold may include a dynamic ambient temperature threshold and / or a preset fixed temperature threshold, and this application embodiment does not limit this. The first temperature detection condition can be used to determine that the water flow is hot, that is, to determine that the water output from the water heater is hot, and this application embodiment does not limit this.

[0087] In its implementation, the intelligent temperature display system, after determining the water flow temperature information and the water temperature detection time, uses an ambient temperature threshold and a preset first detection time threshold to determine whether the water flow is hot. Specifically, the intelligent temperature display system can determine whether the water flow temperature corresponding to the water flow temperature information exceeds an ambient dynamic temperature threshold or whether the water flow temperature exceeds a preset fixed temperature threshold. Therefore, when the water flow temperature exceeds the ambient dynamic temperature threshold or the water flow temperature exceeds the preset fixed temperature threshold, it can determine whether the water temperature detection time has reached the preset first detection time threshold. Furthermore, when the water temperature detection time reaches the preset first detection time threshold, it can determine that the temperature detection information meets the first temperature detection condition, that is, it can determine that the user is currently using hot water and the water heater is dispensing hot water.

[0088] Furthermore, ambient temperature is typically dynamic, and the temperature of cold water also changes accordingly. To ensure that the intelligent temperature display system does not misjudge whether the user is using cold or hot water, this embodiment may include both a dynamic ambient temperature threshold and a preset fixed temperature threshold. The intelligent temperature display system can determine that the temperature detection information meets the first temperature detection condition when the water flow temperature exceeds both the dynamic ambient temperature threshold and the preset fixed temperature threshold, and the water temperature detection time reaches a preset first detection time threshold, thereby avoiding misjudgment.

[0089] It should be noted that the first detection duration threshold can be 5 seconds, or it can be set according to actual needs. This application embodiment does not limit this. The dynamic environmental temperature threshold can be the current environmental temperature value + 3 degrees Celsius, or the environmental temperature value + 3 degrees Celsius or more. This application embodiment does not limit this. The preset fixed temperature threshold can be 40 degrees Celsius. This application embodiment does not limit this.

[0090] In practical implementation, when both the water flow sensor and the intelligent temperature display system of the electric water heater are functioning normally, the user uses hot water. After detecting the water flow, the intelligent temperature display system sends a working confirmation signal to the water heater control system to confirm whether the water flow sensor is working. If the water flow sensor is working, it indicates that the user is using hot water. The intelligent temperature display system detects the water temperature through the temperature sensor to obtain the initial water temperature and can store the detected initial water temperature. This water temperature is approximately equal to the ambient temperature, such as below 37 degrees Celsius; this example does not impose such restrictions. While performing temperature detection, the intelligent temperature display system starts a timer. When the detected water temperature is higher than the initial water temperature and remains stable for a period of time (e.g., 5 seconds) and the outlet water temperature is above 40°C, it indicates that hot water has traveled through the pipes to the showerhead. The temperature display system records this time data, which is the time t0 required for the electric water heater to travel from the showerhead pipe.

[0091] Step 260: When the water flow temperature information is less than a preset ambient temperature threshold and the water temperature detection time reaches a preset second detection time threshold, it is determined that the temperature detection information meets the second temperature detection condition.

[0092] Wherein, the second detection duration threshold is greater than the first detection duration threshold.

[0093] Specifically, the first temperature detection condition can be used to determine that the water flow is cold water, that is, to determine that the water coming out of the water heater is cold water. This application embodiment does not limit this.

[0094] In its specific implementation, this embodiment can determine whether the water temperature detection time has reached a preset second detection time threshold when the water flow temperature is lower than a preset ambient temperature threshold (e.g., lower than an ambient dynamic temperature threshold or a preset fixed temperature threshold), or when the water flow temperature is lower than both the ambient dynamic temperature threshold and the preset fixed temperature threshold. If the water temperature detection time reaches the preset second detection time threshold, it is determined that the temperature detection information meets the second temperature detection condition, i.e., it is determined that the user is currently using cold water and the water heater is dispensing cold water. By setting reasonable detection conditions, it is possible to accurately detect whether the water heater is dispensing hot or cold water. This allows for fault detection of the water flow sensor when the water heater is dispensing hot water, and avoids fault detection when the water heater is dispensing cold water, thus preventing frequent detection of the water flow sensor and reducing power consumption.

[0095] As an example, the second detection duration threshold can be 5 times t0. Of course, other duration thresholds can be set according to actual needs. This example does not impose any restrictions on this.

[0096] Step 270: When the temperature detection information meets the preset first temperature detection condition, the hot water usage signal corresponding to the first temperature detection condition is sent to the water outlet usage signal as the water heater control system.

[0097] The hot water usage signal is used to trigger the water heater control system to execute a preset water flow sensor fault detection program, and the water flow sensor detection result includes the fault detection result output by the water flow sensor fault detection program.

[0098] In its specific implementation, this embodiment can determine that the water outlet of the water heater is hot when the temperature detection information meets a preset first temperature detection condition. The hot water usage signal corresponding to the first temperature detection condition can be sent to the water heater control system as a water outlet usage signal. Upon receiving the hot water usage signal, the water heater control system can execute a preset water flow sensor fault detection program. This program detects the water flow sensor and, if a fault is detected, generates a fault detection result, which is then output as the water flow sensor detection result. By reasonably setting the detection conditions for water flow sensor fault detection, frequent detection of the water flow sensor is avoided, while timely detection of faults when they occur is ensured, thus improving the safety of the water heater.

[0099] In actual operation, when the water flow sensor is found to be faulty, it is determined that the water flow sensor may be stuck or damaged. Subsequently, the display screen of the water heater control system can light up the corresponding water flow sensor fault light to prompt the user to repair the water flow sensor of the electric water heater. When the water heater control system detects that the water flow sensor is emitting a square wave again, it indicates that the water flow sensor is working normally, and the water heater control system turns off the water flow sensor fault light.

[0100] As an example, suppose the water flow sensor of the current electric water heater is damaged. When the user uses hot water, the water heater dispenses water, the intelligent temperature display system starts working, and sends a working confirmation signal to the water heater control system to confirm whether the water flow sensor is working. If the water heater control system confirms that the water flow sensor is not working, it sends a feedback signal that the water flow sensor is not working (i.e., the sensor is not working signal) to the intelligent temperature display system, and the water heater control system can continue to read the working signal of the water flow sensor in real time. After receiving a non-working signal, the intelligent temperature display system stores the initial water temperature detected at the time, obtains the water flow temperature, and starts a timer to record the water temperature detection duration. When the water temperature detected by the temperature display system is greater than the ambient water temperature +3℃ and greater than 40℃, and remains stable for more than 5 seconds, that is, the water temperature detection duration exceeds the preset first detection duration threshold, and the water flow temperature exceeds the preset ambient temperature threshold, it indicates that the user is using hot water but the water flow sensor of the electric water heater is not outputting a signal. At this time, the temperature display system sends a confirmation command to the electric water heater control system. The electric water heater control system also confirms that no rotation of the water flow sensor is detected within this time period (e.g., 5 times t0 time), which indicates that the rotor of the water flow sensor of the electric water heater is stuck or damaged. Subsequently, a fault detection result can be generated and output as the water flow sensor detection result.

[0101] Step 280: When the temperature detection information meets the preset second temperature detection conditions, the cold water usage signal corresponding to the second temperature detection conditions is sent to the water outlet usage signal as the water heater control system.

[0102] The cold water usage signal is used to trigger the water heater control system to stop executing the water flow sensor fault detection program.

[0103] In a specific implementation, this application embodiment can determine that the water outlet of the water heater is cold water when the temperature detection information meets the preset second temperature detection condition, and can send the cold water usage signal corresponding to the second temperature detection condition as the water outlet usage signal to the water heater control system. After receiving the cold water usage signal, the water heater control system can stop executing the preset water flow sensor fault detection program.

[0104] As an example, suppose a user is using cold water. The intelligent temperature display system starts working and sends a confirmation signal to the water heater control system to check if the water flow sensor is working. After the water heater control system sends a signal to the intelligent temperature display system that the water flow sensor is not working, it can continue to read the water flow sensor signal in real time. After receiving the signal that no hot water is being used, the intelligent temperature display system performs water temperature detection and timed recording of the detection duration to obtain the water flow temperature and water temperature detection duration. If the outlet water temperature is continuously detected to be less than 40℃ or within the ambient temperature +3℃ within 5 times t0, that is, the water temperature detection duration exceeds the preset second detection duration threshold, and the water flow temperature is less than the preset ambient temperature threshold, it indicates that the user is using cold water. After 5 times t0 time has elapsed, the temperature display system sends a signal to the water heater control system to use cold water, and the water heater control system no longer executes the water flow sensor fault detection program.

[0105] Furthermore, in this embodiment, the intelligent temperature display system can also record the user's bath start and end times, the number of times a single bath is started and stopped, the number of people bathing, and the mixing water temperature. This information is transmitted to the electric water heater to analyze the user's bathing habits. After calculation by the algorithm, the electric water heater will actively adjust the set water temperature and heating time for the user, thereby improving the user experience.

[0106] In summary, this embodiment of the application sends a working confirmation signal to the water heater control system based on the water flow detection signal and receives a working feedback signal. When the working feedback signal is a sensor not working signal, it acquires the detected water flow temperature information, determines the water temperature detection duration corresponding to the water flow temperature information, and defines the water flow temperature information and water temperature detection duration as temperature detection information. When the water flow temperature information exceeds a preset ambient temperature threshold and the water temperature detection duration reaches a preset first detection duration threshold, it is determined that the temperature detection information meets a first temperature detection condition. The hot water usage signal corresponding to the first temperature detection condition is sent to the water heater control system as a water outlet usage signal. This triggers the water heater control system to execute a preset water flow sensor fault detection program and outputs the fault detection result, thereby realizing the use of intelligent temperature... The temperature display system and the water flow sensor of the water heater control system perform mutual detection to determine whether the water flow sensor is stuck or malfunctioning, thus realizing water flow sensor fault detection. When the water flow sensor malfunctions, the water heater can detect and determine the fault in time, solving the problem that existing water heaters cannot detect water flow sensor faults and improving the safety of the water heater. When the water flow temperature information is lower than the preset ambient temperature threshold and the water temperature detection time reaches the preset second detection time threshold, it is determined that the temperature detection information meets the second temperature detection condition. The cold water usage signal corresponding to the second temperature detection condition is sent as the water outlet usage signal to the water heater control system. This cold water usage signal triggers the water heater control system to stop executing the water flow sensor fault detection program, avoiding frequent detection of the water flow sensor and reducing power consumption.

[0107] Reference Figure 4 This document illustrates a flowchart of the steps involved in a water heater detection method provided by an optional embodiment of this application, on the water heater control system side. In a specific implementation, this water heater detection method can be applied to a water heater control system. The control system receives a working confirmation signal from the water heater's intelligent temperature display system. Based on this confirmation signal, it determines the working status of the water flow sensor in the water heater. Based on the working status, it sends a working feedback signal to the intelligent temperature display system and receives a water usage signal from the system. Based on this signal, it performs water flow sensor detection to obtain the detection result. Specifically, the method may include the following steps:

[0108] Step 410: Receive a work confirmation signal, which is a signal sent by the intelligent temperature display system of the water heater.

[0109] In practice, the water heater control system can be equipped with the same communication module as the intelligent temperature display system. The water heater control system can receive the work confirmation signal sent by the intelligent temperature display system through the communication module.

[0110] Step 420: Based on the work confirmation signal, determine the working status of the water flow sensor in the water heater.

[0111] Specifically, when the water heater control system receives a working confirmation signal, it can determine the working status of the water flow sensor by confirming whether the water flow sensor is working.

[0112] In practical implementation, taking a Hall effect magnetic sensor as an example, when a user uses hot water, the water flow drives the magnetic rotor of the water flow sensor to rotate. The greater the water flow, the faster the rotation speed, and the higher the square wave frequency output by the Hall effect magnetic sensor. When the user stops using water or the water flow sensor malfunctions, the magnetic rotor stops rotating. Therefore, the water heater control system can obtain the square wave frequency output by the Hall effect magnetic sensor after receiving a work confirmation signal, and determine whether the water flow sensor is working based on the square wave frequency. If the water flow sensor is working, its working state can be determined as "working"; if the water flow sensor is not working, its working state can be determined as "not working".

[0113] Step 430: Based on the operating status, send an operating feedback signal to the intelligent temperature display system.

[0114] In this embodiment, when the water flow sensor is determined to be in a non-working state, the water heater control system can generate a sensor non-working signal as a working feedback signal and send it to the intelligent temperature display system. This allows the intelligent temperature display system to execute subsequent fault detection steps upon receiving the sensor non-working signal. Conversely, when the water flow sensor is determined to be in a working state, the system can generate a sensor working signal as a working feedback signal and send it to the intelligent temperature display system. Upon receiving the sensor working signal, the intelligent temperature display system determines that the water flow sensor is not faulty and does not need to execute subsequent fault detection steps.

[0115] Step 440: Receive a water usage signal sent by the intelligent temperature display system. The water usage signal is a signal sent by the intelligent temperature display system based on temperature detection information, which is the detection information obtained by the intelligent temperature display system based on the working feedback signal.

[0116] In its implementation, the intelligent temperature display system can acquire temperature detection information based on the feedback signal (if the sensor is not working), and determine whether the water from the water heater is cold or hot. When the water is cold, the system generates a cold water usage signal and sends it to the water heater control system; when the water is hot, it generates a hot water usage signal. Upon receiving the usage signal, the control system can determine whether it is a cold or hot water signal, thus deciding whether to execute the water flow sensor fault detection procedure.

[0117] Step 450: Based on the water usage signal, perform water flow sensor detection to obtain the water flow sensor detection result.

[0118] In practical implementation, the water heater control system can perform fault detection on the water flow sensor when the water outlet signal is a hot water signal. When a fault is detected in the water flow sensor, a fault detection result is generated as the water flow sensor detection result; when no fault is detected in the water flow sensor, a normal detection result is generated as the water flow sensor detection result. This enables the intelligent temperature display system and the water flow sensor of the water heater control system to mutually detect each other to determine whether the water flow sensor is stuck or faulty.

[0119] In practical applications, the water heater control system can be equipped with a water flow sensor fault detection program. When the water outlet signal received by the water heater control system is a hot water signal, the water heater control system can execute the water flow sensor fault detection program to detect faults in the water flow sensor and obtain the detection results. When the received water outlet signal is a cold water signal, the water heater control system may not execute the water flow sensor fault detection program.

[0120] In one optional embodiment, the present application embodiment performs water flow sensor detection based on the water outlet usage signal to obtain water flow sensor detection results. Specifically, it may include: when the water outlet usage signal is a hot water usage signal, triggering the execution of a preset water flow sensor fault detection program, the water flow sensor fault detection program being used to detect the water flow sensor; and determining the fault detection result output by the water flow sensor fault detection program as the water flow sensor detection result.

[0121] In summary, this embodiment of the application, applied to a water heater control system, receives a working confirmation signal sent by the water heater's intelligent temperature display system. Based on the working confirmation signal, it determines the working status of the water flow sensor in the water heater. Based on the working status, it sends a working feedback signal to the intelligent temperature display system and receives a water outlet usage signal sent by the intelligent temperature display system. Based on the water outlet usage signal, it performs water flow sensor detection to obtain the water flow sensor detection result, thereby realizing the fault detection of the water flow sensor. When the water flow sensor malfunctions, the water heater can detect and judge the fault in a timely manner, solving the problem that existing water heaters cannot detect faults in the water flow sensor and improving the safety of the water heater.

[0122] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should know that the embodiments of this application are not limited to the described order of actions, because according to the embodiments of this application, some steps may be performed in other orders or simultaneously.

[0123] like Figure 5 As shown in the figure, this application embodiment also provides an intelligent temperature display system 500 for a water heater, including:

[0124] The operation confirmation signal sending module 510 is used to send an operation confirmation signal to the water heater control system based on the water flow detection signal;

[0125] The temperature detection information acquisition module 520 is used to receive the work feedback signal and acquire temperature detection information based on the work feedback signal. The work feedback signal is a feedback signal sent by the water heater control system in response to the work confirmation signal.

[0126] The water outlet usage signal sending module 530 is used to send a water outlet usage signal to the water heater control system based on the temperature detection information. The water outlet usage signal is used to trigger the water heater control system to generate the water flow sensor detection result of the water heater.

[0127] Optionally, the intelligent temperature display system is installed at the showerhead of the water heater, the water flow detection signal is a signal generated by power generation based on the water flow at the showerhead, and the working confirmation signal sending module 510 includes:

[0128] The water flow detection signal acquisition submodule is used to acquire water flow detection signals;

[0129] The water flow pressure value determination submodule is used to determine the water flow pressure value corresponding to the water flow detection signal;

[0130] The operation confirmation signal generation submodule is used to generate the operation confirmation signal when the water flow pressure value is greater than the preset water flow pressure threshold, and send the operation confirmation signal to the water heater control system.

[0131] Optionally, the temperature detection information acquisition module 520 is specifically used to acquire the detected water flow temperature information when the working feedback signal is a sensor not working signal; determine the water temperature detection duration corresponding to the water flow temperature information; and determine the water flow temperature information and the water temperature detection duration as the temperature detection information.

[0132] Optionally, the water effluent uses a signal transmitting module 530, comprising:

[0133] The first judgment submodule is used to send the hot water usage signal corresponding to the first temperature detection condition as the water outlet usage signal to the water heater control system when the temperature detection information meets the preset first temperature detection condition. The hot water usage signal is used to trigger the water heater control system to execute a preset water flow sensor fault detection program. The water flow sensor detection result includes the fault detection result output by the water flow sensor fault detection program.

[0134] The second judgment submodule is used to send the cold water usage signal corresponding to the second temperature detection condition as the water outlet usage signal to the water heater control system when the temperature detection information meets the preset second temperature detection condition. The cold water usage signal is used to trigger the water heater control system to stop executing the water flow sensor fault detection program.

[0135] Optionally, the intelligent temperature display system 500 further includes:

[0136] The first judgment module is used to determine that the temperature detection information meets the first temperature detection condition when the water flow temperature information exceeds a preset ambient temperature threshold and the water temperature detection time reaches a preset first detection time threshold.

[0137] The second judgment module is used to determine that the temperature detection information meets the second temperature detection condition when the water flow temperature information is less than a preset ambient temperature threshold and the water temperature detection time reaches a preset second detection time threshold, and the second detection time threshold is greater than the first detection time threshold.

[0138] like Figure 6 As shown in the figure, this application embodiment also provides a water heater control system 600 for a water heater, including:

[0139] The work confirmation signal receiving module 610 is used to receive a work confirmation signal, which is a signal sent by the intelligent temperature display system of the water heater.

[0140] The working status confirmation module 620 is used to determine the working status of the water flow sensor in the water heater based on the working confirmation signal.

[0141] The working feedback signal sending module 630 is used to send a working feedback signal to the intelligent temperature display system based on the working state;

[0142] The water outlet usage signal receiving module 640 is used to receive the water outlet usage signal sent by the intelligent temperature display system. The water outlet usage signal is a signal sent by the intelligent temperature display system based on temperature detection information. The temperature detection information is the detection information obtained by the intelligent temperature display system based on the working feedback signal.

[0143] The detection module 650 is used to perform water flow sensor detection based on the water outlet usage signal to obtain the water flow sensor detection result.

[0144] Optionally, the detection module 650 is specifically used to trigger the execution of a preset water flow sensor fault detection program when the water outlet signal is a hot water signal. The water flow sensor fault detection program is used to detect the water flow sensor. The fault detection result output by the water flow sensor fault detection program is determined as the water flow sensor detection result.

[0145] It should be noted that the intelligent temperature display system 500 and the water heater control system 600 of the water heater provided in the embodiments of this application can execute the water heater detection method provided in any embodiment of this application, and have the corresponding functions and beneficial effects of executing the method.

[0146] In practical implementation, the aforementioned intelligent temperature display system and water heater control system can be integrated into the water heater, enabling the intelligent temperature display system to send a water usage signal to the water heater control system. This signal triggers the water heater control system to generate the water flow sensor detection result, allowing the water heater to perform self-detection of the water flow sensor and function as a water heater device.

[0147] like Figure 7As shown in the illustration, this application provides a water heater device, including: the aforementioned intelligent temperature display system 500 and water heater control system 600. The intelligent temperature display system and the water heater control system are wirelessly connected. This water heater can be used to implement the steps of the water heater detection method provided in any of the aforementioned method embodiments. For example, the steps of the water heater detection method may include: sending a work confirmation signal to the water heater control system based on a water flow detection signal; receiving a work feedback signal and obtaining temperature detection information based on the work feedback signal, wherein the work feedback signal is a feedback signal sent by the water heater control system in response to the work confirmation signal; and sending a water outlet usage signal to the water heater control system based on the temperature detection information, wherein the water outlet usage signal is used to trigger the water heater control system to generate the water flow sensor detection result of the water heater.

[0148] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the water heater detection method provided in any of the foregoing method embodiments.

[0149] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0150] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for testing a water heater, characterized in that, A smart temperature display system for a water heater, wherein the smart temperature display system is installed at the showerhead of the water heater, the method comprising: Based on the water flow detection signal, which is a signal generated by power generation based on the water flow rate at the showerhead, the step of sending a working confirmation signal to the water heater control system based on the water flow detection signal includes: Acquire water flow detection signals; Determine the water flow pressure value corresponding to the water flow detection signal; When the water flow pressure value is greater than the preset water flow pressure threshold, the operation confirmation signal is generated and sent to the water heater control system. The system receives a work feedback signal and obtains temperature detection information based on the work feedback signal. The work feedback signal is a feedback signal sent by the water heater control system in response to the work confirmation signal. Based on the temperature detection information, a water usage signal is sent to the water heater control system. The water usage signal is used to trigger the water heater control system to generate the water flow sensor detection result of the water heater.

2. The method according to claim 1, characterized in that, The step of sending a water usage signal to the water heater control system based on the temperature detection information includes: When the temperature detection information meets the preset first temperature detection condition, the hot water usage signal corresponding to the first temperature detection condition is sent to the water outlet usage signal as the hot water usage signal. The hot water usage signal is used to trigger the water heater control system to execute the preset water flow sensor fault detection program. The water flow sensor detection result includes the fault detection result output by the water flow sensor fault detection program. When the temperature detection information meets the preset second temperature detection condition, the cold water usage signal corresponding to the second temperature detection condition is sent to the water outlet usage signal as the water heater control system. The cold water usage signal is used to trigger the water heater control system to stop executing the water flow sensor fault detection program.

3. The method according to claim 2, characterized in that, Temperature detection information is obtained based on the working feedback signal, including: When the working feedback signal is a sensor not working signal, the detected water flow temperature information is acquired; Determine the water temperature detection duration corresponding to the water flow temperature information, and then define the water flow temperature information and the water temperature detection duration as the temperature detection information.

4. The method according to claim 3, characterized in that, Before sending the water usage signal to the water heater control system, the method further includes: When the water flow temperature information exceeds a preset ambient temperature threshold and the water temperature detection time reaches a preset first detection time threshold, it is determined that the temperature detection information meets the first temperature detection condition. When the water flow temperature information is less than a preset ambient temperature threshold and the water temperature detection time reaches a preset second detection time threshold, it is determined that the temperature detection information meets the second temperature detection condition, and the second detection time threshold is greater than the first detection time threshold.

5. A method for testing a water heater, characterized in that, The method, applied to a water heater control system, includes: The intelligent temperature display system sends a working confirmation signal to the water heater control system based on the water flow detection signal. The water flow detection signal is a signal generated by generating electricity based on the water flow at the shower head. The process includes: acquiring the water flow detection signal; determining the water flow pressure value corresponding to the water flow detection signal; generating the working confirmation signal when the water flow pressure value is greater than a preset water flow pressure threshold, and sending the working confirmation signal to the water heater control system. Receive the work confirmation signal; Based on the work confirmation signal, the working status of the water flow sensor in the water heater is determined; Based on the operating status, a working feedback signal is sent to the intelligent temperature display system; The system receives a water usage signal sent by the intelligent temperature display system. The water usage signal is a signal sent by the intelligent temperature display system based on temperature detection information, which is the detection information obtained by the intelligent temperature display system based on the working feedback signal. The water flow sensor detects the water flow signal and obtains the detection result.

6. The method according to claim 5, characterized in that, The step of performing water flow sensor detection based on the water usage signal to obtain water flow sensor detection results includes: When the water outlet signal is a hot water signal, a preset water flow sensor fault detection program is triggered to execute. The water flow sensor fault detection program is used to detect the water flow sensor. The fault detection result output by the water flow sensor fault detection program is determined as the water flow sensor detection result.

7. An intelligent temperature display system for a water heater, characterized in that, include: The work confirmation signal sending module is used to generate a signal based on a water flow detection signal, which is a signal generated by power generation based on the water flow at the shower head. Determine the water flow pressure value corresponding to the water flow detection signal; when the water flow pressure value is greater than the preset water flow pressure threshold, generate a work confirmation signal and send the work confirmation signal to the water heater control system; The temperature detection information acquisition module is used to receive the work feedback signal and acquire temperature detection information based on the work feedback signal. The work feedback signal is the feedback signal sent by the water heater control system in response to the work confirmation signal. The water outlet usage signal sending module is used to send a water outlet usage signal to the water heater control system based on the temperature detection information. The water outlet usage signal is used to trigger the water heater control system to generate the water flow sensor detection result of the water heater.

8. A water heater control system for a water heater, characterized in that, include: The work confirmation signal receiving module is used to receive the work confirmation signal, which is a signal sent by the intelligent temperature display system based on the water flow detection signal. The water flow detection signal is a signal generated by power generation based on the water flow at the shower head. The working status confirmation module is used to determine the working status of the water flow sensor in the water heater based on the working confirmation signal. The working feedback signal sending module is used to send a working feedback signal to the intelligent temperature display system based on the working status; The water outlet usage signal receiving module is used to receive the water outlet usage signal sent by the intelligent temperature display system. The water outlet usage signal is a signal sent by the intelligent temperature display system based on temperature detection information, which is the detection information obtained by the intelligent temperature display system based on the working feedback signal. The detection module is used to perform water flow sensor detection based on the water usage signal to obtain the water flow sensor detection result.

9. A water heater device, characterized in that, include: The intelligent temperature display system as described in claim 7 and the water heater control system as described in claim 8 are connected wirelessly.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the water heater detection method as described in any one of claims 1-4 or the steps of the water heater detection method as described in any one of claims 5-6.

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