Fan heater state control method and device based on power detection

Abstract

The invention provides a warm air blower state control method and device based on power detection. A controller obtains the heating gear and the output power of a heating assembly and the rated power range corresponding to the heating gear; determining the abnormal condition of the output power according to the size relation between the output power and the rated power range; determining a corresponding risk event type according to the abnormal condition; and determining control strategies of the heating assembly and a fan of the fan heater according to the risk event type, and regulating and controlling the heating assembly and the fan according to the control strategies. Therefore, compared with an existing mechanism that the rotating speed is adjusted based on the power difference value to achieve power deviation correction or the fan heater is directly shut down according to power changes, the risk event category is comprehensively analyzed according to power detection and power abnormity, corresponding control measures are taken, various non-standard risk events of the fan heater can be effectively covered, and the risk risk of the fan heater is effectively improved. Therefore, various safety risks possibly existing in the warm air blower are comprehensively eliminated without omission, and the safety and stability of the warm air blower are improved.

Description

Technical Field

[0001] The present application relates to the field of power control, and particularly to a method and device for controlling the state of a heater based on power detection. Background Art

[0002] Currently, in the related functions of power detection and control of heaters, there are already related functions based on monitoring the power of heating components and adjusting the fan speed or turning off the heating components according to the change in the power of the heating components. However, with the evolution of the functions of heaters, the root causes of abnormal heater power may be various. Therefore, the control based only on power changes can no longer meet the balance requirements between the control of the working state and the safety control of heaters. Summary of the Invention

[0003] The present application provides a method and device for controlling the state of a heater based on power detection. By comprehensively analyzing the types of risk events around power detection and power anomalies and taking corresponding control measures, it can effectively cover various non-standard risk events of heaters, thus comprehensively and without omission solving various safety risks that may exist in heaters, and thereby improving the safety and stability of heaters.

[0004] In a first aspect, the present application provides a method for controlling the state of a heater based on power detection, which is applied to a controller of the heater. The method includes: obtaining the heating level, output power of the heating component, and the rated power range corresponding to the heating level; determining the abnormal situation of the output power according to the magnitude relationship between the output power and the rated power range; determining the corresponding risk event type according to the abnormal situation; determining the control strategies for the heating component and the fan of the heater according to the risk event type, and regulating the heating component and the fan according to the control strategies.

[0005] In some embodiments, the determining the abnormal situation of the output power according to the magnitude relationship between the output power and the rated power range includes: if the output power is less than the minimum rated power of the rated power range, determining that the abnormal situation is an abnormal decrease; if the output power is greater than the maximum rated power of the rated power range, determining that the abnormal situation is an abnormal increase.

[0006] In some embodiments, the heating component includes a heating element. Determining a corresponding risk event type according to the abnormal situation includes: detecting that the abnormal situation is the abnormal decrease, then obtaining a first preset parameter group of the heater, where the first preset parameter group includes the temperature parameter of the heating element, the thyristor control ratio of the heating element, and the rotation speed of the blower; obtaining the detected values of the first preset parameter group and the rated values of at least one of the first preset parameters corresponding to the heating gear; and determining the risk event type according to the magnitude relationship between the detected values and the rated values.

[0007] In some embodiments, determining the risk event type according to the magnitude relationship between the detected values and the rated values includes: detecting that the detected temperature parameter of the heating element is greater than the rated resistance temperature parameter, and / or detecting that the detected thyristor control ratio of the heating element is less than the rated thyristor control ratio; and detecting that the detected rotation speed of the blower is less than the lowest rated rotation speed within the rated rotation speed range, then determining that the risk event type is too low blower speed; detecting that the detected temperature parameter is greater than the rated resistance temperature parameter, and / or detecting that the detected thyristor control ratio of the heating element is less than the rated thyristor control ratio; and detecting that the detected rotation speed belongs to the rated rotation speed range, then determining that the risk event type is the heater being tilted or covered.

[0008] In some embodiments, the heating component includes a heating element. Determining a corresponding risk event type according to the abnormal situation includes: detecting that the abnormal situation is the abnormal increase, then obtaining a second preset parameter group of the heater, where the second preset parameter group includes the temperature parameter of the heating element, the rotation speed of the blower, the thyristor control ratio of the heating element, and the ambient temperature; obtaining the detected values of the second preset parameter group and the rated values of at least one of the second preset parameters corresponding to the heating gear; and determining the risk event type according to the magnitude relationship between the detected values and the rated values.

[0009] In some embodiments, determining the risk event type according to the magnitude relationship between the detected values and the rated values includes: detecting that the detected temperature parameter of the heating element is less than the rated resistance temperature parameter, and / or detecting that the detected thyristor control ratio of the heating element is greater than the rated thyristor control ratio; and detecting that the detected rotation speed of the blower is greater than the highest rated rotation speed within the rated rotation speed range, then determining that the risk event type is too high blower speed; detecting that the detected temperature parameter is less than the rated resistance temperature parameter, and / or detecting that the detected thyristor control ratio of the heating element is greater than the rated thyristor control ratio; and detecting that the ambient temperature is lower than the preset temperature threshold, then determining that the risk event type is too low ambient temperature.

[0010] In some embodiments, the heating element is a positive temperature coefficient thermistor.

[0011] In some embodiments, the heater fan is communicatively connected to a terminal device, and the terminal device is configured to provide risk alerts for abnormal conditions of the heater fan. The process of generating the risk alerts is as follows: receiving the output power from the heater fan, the detected values of a preset parameter set, and the risk event type, where the preset parameter set includes a first preset parameter set and a second preset parameter set; determining the risk level according to the risk event type; determining the alert content according to the risk event type and whether user assistance is required for operation, where the alert content includes the risk event type and a corresponding solution; determining the alert method according to the risk level and whether user assistance is required for operation, where the alert method includes a notification alert and a silent alert. The notification alert refers to directly popping up an alert on the terminal device and / or providing an alert through the sound playback system of the terminal device. The silent alert includes providing an alert when the user opens the application program of the heater fan, or recording and highlighting it in the product work log of the heater fan; generating a corresponding risk alert display interface according to the alert content and the alert method.

[0012] In a second aspect, the present application provides a heater fan state control device based on power detection, which is applied to a controller of a heater fan. The heater fan state control device includes: an acquisition unit configured to acquire the heating level, output power of a heating component, and the rated power range corresponding to the heating level; a processing unit configured to determine an abnormal condition of the output power according to the magnitude relationship between the output power and the rated power range; and determine a corresponding risk event type according to the abnormal condition; and determine control strategies for the heating component and the fan of the heater fan according to the risk event type, and regulate the heating component and the fan according to the control strategies.

[0013] In a third aspect, the present application provides a heater fan, including a controller, a heating component, and a fan, where the controller is configured to execute the step instructions in the method according to any one of the first aspect.

[0014] In a fourth aspect, the present application provides a controller, including a processor and a memory, where one or more programs are stored on the memory and are called by the processor to execute the step instructions in the method according to any one of the first aspect.

[0015] It can be seen that in the embodiment of the present application, the controller obtains the heating gear, output power of the heating component, and the rated power range corresponding to the heating gear; determines the abnormal situation of the output power according to the magnitude relationship between the output power and the rated power range; determines the corresponding risk event type according to the abnormal situation; determines the control strategies for the heating component and the fan of the heater according to the risk event type, and regulates the heating component and the fan according to the control strategies. Therefore, compared with the current mechanism of adjusting the rotation speed based on the power difference to correct the power or directly turning off the heater according to the power change, the present application comprehensively analyzes the risk event categories around power detection and power abnormality and takes corresponding control measures, which can effectively cover various non-standard risk events of the heater, so as to comprehensively and without omission solve various safety risks that the heater may have, thereby improving the safety and stability of the heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them, Figure 1 is a structural block diagram of a heater provided by an embodiment of the present application; Figure 2 is a schematic structural diagram of the controller provided by an embodiment of the present application; Figure 3 is a schematic diagram of the resistance and power curve of the heating element provided by an embodiment of the present application; Figure 4 is a schematic flow diagram of a heater state control method based on power detection provided by an embodiment of the present application; Figure 5 is a schematic diagram of a scenario of a heater provided by an embodiment of the present application; Figure 6 is a schematic diagram of a prompt interface when the heater provided by an embodiment of the present application is tilted; Figure 7 is a schematic diagram of a prompt interface when the heater provided by an embodiment of the present application is covered; Figure 8 is a functional unit structural block diagram of a heater state control device based on power detection provided by an embodiment of the present application; Figure 9 is a schematic diagram of a prompt interface when the ambient temperature of the heater provided by an embodiment of the present application is too low; Figure 10 is a schematic diagram of a prompt interface when there is interference from other fans provided by an embodiment of the present application; Figure 11Schematic diagram of the prompt interface when the automatic adjustment of the heater in the embodiments of the present application fails. Detailed implementation manners

[0017] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present application.

[0018] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but in some embodiments also includes steps or units not listed, or in some embodiments also includes other steps or units inherent to these processes, methods, products or devices.

[0019] Referring to "embodiments" herein means that a specific feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0020] The "and / or" in the embodiments of the present application describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone; A and B exist simultaneously; B exists alone. Among them, A and B can be singular or plural.

[0021] In the embodiments of the present application, the symbol " / " can represent an "or" relationship between the front and rear associated objects. In addition, the symbol " / " can also represent a division sign, that is, perform a division operation. For example, A / B can represent A divided by B.

[0022] The "at least one (item)" or its similar expression in the embodiments of the present application refers to any combination of these items, including any combination of single item (s) or plural item (s), which means one or more, and multiple means two or more. For example, at least one (item) of a, b, or c can represent the following seven cases: a, b, c, a and b, a and c, b and c, a, b, and c. Each of a, b, and c can be an element or a set containing one or more elements.

[0023] In the embodiments of the present application, "equal to" can be used in combination with "greater than", which is applicable to the technical solutions adopted when it is greater than, and can also be used in combination with "less than", which is applicable to the technical solutions adopted when it is less than. When "equal to" is used in combination with "greater than", it is not used in combination with "less than"; when "equal to" is used in combination with "less than", it is not used in combination with "greater than".

[0024] To solve the above problems, the present application provides a method and device for controlling the state of a heater fan based on power detection. By comprehensively analyzing the category of risk events around power detection and power anomalies and taking corresponding control measures, it can effectively cover various non-standard risk events of the heater fan, thereby comprehensively and without omission solving various safety risks that the heater fan may have, and thus improving the safety and stability of the heater fan.

[0025] The following uses specific embodiments to elaborate in detail on the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems. These several specific embodiments can be combined with each other, and for the same or similar concepts or processes, they may not be repeated in some embodiments. The following will describe the embodiments of the present application in conjunction with the drawings.

[0026] Please refer to Figure 1 , Figure 1 which is a structural block diagram of a heater fan 10 provided in the embodiments of the present application. As Figure 1 shown, the heater fan 10 includes a controller 101, a heating component 102, and a blower 103.

[0027] Among them, the controller 101 is used to obtain the output power of the heating component 102 and adjust the working states of the heating component 102 and the blower 103 according to the output power. Specifically, when implemented, see Figure 2 , Figure 2 which is a structural schematic diagram of the controller provided in the embodiments of the present application. As Figure 2 shown, the controller 101 includes a processor 11, a memory 13, a communication interface 12, and one or more programs 131. Among them, the one or more programs 131 are stored in the memory 13 and are configured to be executed by the above-mentioned processor 11. The one or more programs 131 include instructions for executing any step in the embodiments of the method for controlling the state of the heater fan 10 based on power detection described below.

[0028] Among them, the heating component 102 includes a heating element. The heating component 102 is used for heating to generate heat. One end of the heating element is provided with a blower 103, and the heat generated by the heating element is output from the warm air outlet of the warm air blower 10 through the blower 103. In some embodiments, the heating element is a Positive Temperature Coefficient Thermistor (abbreviated as PTC thermistor). The PTC thermistor is a typical semiconductor resistor with temperature sensitivity. When the temperature exceeds a certain value, its resistance value increases step by step as the temperature rises. The higher the temperature of the heating element, the greater its resistance. According to the power formula P = U 2 / R, it can be known that the output power of the heating element is smaller; the lower the temperature of the heating element, the smaller its resistance, and the greater the output power of the heating element. See Figure 3 , Figure 3 which is a schematic diagram of the resistance and power curves of the heating element provided by the embodiment of the present application.

[0029] Please refer to Figure 5 , Figure 5 which is a schematic diagram of a scenario of a warm air blower provided by the embodiment of the present application. As shown in Figure 5 , the smart home system 1 includes a warm air blower 10 and a terminal device 20. The warm air blower 10 and the terminal device 20 can be wirelessly connected through communication methods such as Bluetooth and WiFi to realize real-time data interaction between the warm air blower 10 and the terminal device 20. For example, various status data of the warm air blower 10, such as temperature, humidity, working status, etc., can be displayed in real time, and remote control can also be performed. Users can perform operations such as turning on / off control and parameter adjustment of the warm air blower 10 through the terminal device 20 anywhere with network or Bluetooth signal coverage. Among them, the terminal device 20 can specifically include a front-end device applied to the user side that can realize functions such as data collection and data transmission, and can be a user equipment (UE) such as a mobile phone, a smart phone, a notebook computer, a digital radio receiver, a personal digital assistant (PDA), a tablet computer (PAD), an AR glasses, a handheld device, a vehicle-mounted device, a wearable device, a computing device or other processing devices connected to a wireless modem, a mobile station (MS), a mobile terminal, etc. Or, the terminal device 20 can also be a software application that can run on the above-mentioned electronic devices. For example, it can be a certain APP running on a mobile phone, etc.

[0030] Furthermore, a display screen is also provided on the warm air blower 10, which can be all or part of a touch screen or a non-touch screen, providing an interaction interface for displaying the working status of the warm air blower 10, such as parameter information such as temperature and wind speed, operation mode display, risk event type prompt, etc.

[0031] According to the above hardware structure, a method embodiment of the heater state control method based on power detection provided by the present application is proposed.

[0032] Please refer to Figure 4 , Figure 4 , which is a schematic flowchart of a heater state control method based on power detection provided by an embodiment of the present application. As Figure 4 shown, the method includes: Step S401, obtain the heating gear, output power of the heating component, and the rated power range corresponding to the heating gear.

[0033] Among them, the heater includes multiple heating gears. Within each heating gear, each working element in the heater corresponds to a rated parameter range, which is used to characterize the normal working state of each working element. Within each heating gear, if the working parameters of each working element belong to the rated parameter range, it indicates that each working element is in a normal working state; if the working parameters of each working element do not belong to the rated parameter range, it indicates that each working element is in an abnormal working state.

[0034] For example, the heater has a total of five gears, H1 - H5, the standard maximum power is 1500W (the upper floating threshold is 5%, and the lower threshold is 10%). H1 can be set to 600W, and H5 is set to 1500W, specifically referring to the heating power of the heating element. See Figure 3 wherein, the working temperature of the heating element at point A is specifically 300°C. After the working temperature rises abnormally, the power drops, such as at point B.

[0035] Step S402, determine the abnormal situation of the output power according to the magnitude relationship between the output power and the rated power range.

[0036] Among them, the abnormal situation of the output power mainly includes two situations: abnormal decrease and abnormal increase. In some embodiments, determining the abnormal situation of the output power according to the magnitude relationship between the output power and the rated power range includes: if the output power is less than the minimum rated power of the rated power range, determine that the abnormal situation is an abnormal decrease; if the output power is greater than the maximum rated power of the rated power range, determine that the abnormal situation is an abnormal increase.

[0037] Among them, according to the power formula P = U 2As known from \(P = \frac{U^{2}}{R}\), where \(P\) is the output power of the electrical appliance, \(U\) is the voltage across the electrical appliance, and \(R\) is the resistance across the electrical appliance. The main reason for the abnormal decrease in output power is the increase in resistance. Under different working conditions, the types of resistance and the increase in resistance are diverse. For a PTC thermistor, when the temperature of the heating element rises, the resistance increases; when the temperature of the heating element drops, the resistance decreases. For a negative temperature coefficient thermistor (Negative Temperature Coefficient Thermistor, abbreviated as NTC thermistor), when the temperature of the heating element rises, the resistance decreases; when the temperature of the heating element drops, the resistance increases.

[0038] Therefore, the abnormal change in output power can be determined by detecting the temperature parameter of the heating element.

[0039] Taking the PTC thermistor as an example, the situations where the temperature rises include no wind or too low wind speed, resulting in the surface temperature of the heating element rising, the resistance increasing, and the power decreasing abnormally. No wind or too low wind speed may be caused by the abnormal operation of the fan, or by the heater being tilted or covered. Specifically, for the tilting situation, when the heater is tilted, the shape and direction of its internal air duct may change, resulting in the obstruction of the originally smooth air flow path. When air flows in the air duct, it will encounter more obstacles and cannot be discharged smoothly from the air outlet, thus reducing the wind speed or even causing no wind. For the covered situation, when the air inlet of the heater is covered, the heater needs to inhale air from the surrounding environment during operation. If the air inlet is covered, such as blocked by clothes, sundries, etc., air cannot enter the heater normally, and the fan does not have enough air to push and transport, resulting in no wind or extremely low wind speed at the air outlet. When the air outlet of the heater is covered, the blown air is blocked during the discharge process and cannot enter the surrounding space smoothly. This will increase the air pressure inside the heater, forming a back pressure, which acts on the fan in the opposite direction, reducing the fan's ability to push air, and ultimately resulting in a decrease in wind speed. Moreover, as the back pressure continues to increase, it may cause the fan to malfunction and result in no wind.

[0040] Taking the PTC thermistor as an example, the situations where the temperature drops include too high wind speed or too low air temperature, resulting in the surface temperature of the heating element dropping, the resistance decreasing, and the power increasing abnormally. For the situation of too high wind speed, it may be caused by the abnormal operation of the fan. Another possible situation is, for example, placing another fan behind the heater artificially, resulting in the abnormal decrease in the surface temperature of the heating element. For the situation of too low air temperature, for example, putting the heater into an outdoor environment below zero, the air temperature inhaled by the air inlet of the fan is low, resulting in the air temperature flowing through the heating element being too low and reducing the surface temperature of the heating element.

[0041] In addition, according to the formula \(P = I\) 2R, where P is the output power across the electrical appliance, I is the current flowing through the electrical appliance, and R is the resistance of the electrical appliance. When the power abnormally increases and the resistance decreases, the current will rise. There is a certain contact resistance R between the plug of the heater and the socket. 0 , according to Joule's law Q = I 2 R 0 t, where Q is the heat and t is the time. When the current I rises, with the contact resistance R 0 remaining unchanged, the heat Q generated per unit time will increase by a multiple of the square of the current. These extra generated heats will cause the temperature of the plug and the socket to rise sharply. When the temperature exceeds the melting point or softening point of insulators such as plastics, there is a risk of fusing the plug.

[0042] In addition, the output power is also related to the thyristor regulation ratio. Among them, the thyristor regulation ratio generally refers to the proportional relationship of controlling the output voltage or power by adjusting the trigger angle or conduction angle. Its core principle is to change the phase of the trigger pulse, adjust the conduction time of the thyristor in each cycle, and thus change the average voltage or current on the load.

[0043] Among them, the trigger angle α refers to the electrical angle from the zero crossing of the AC voltage to the application moment of the trigger pulse (α = 0~180°), and the conduction angle θ refers to the electrical angle corresponding to the conduction time of the thyristor in each half cycle (θ = 180° - α).

[0044] When α = 0°, that is, full conduction, the maximum output voltage is output; when α = 180°, that is, non-conduction, there is no output.

[0045] Therefore, the controller obtains the thyristor regulation ratio, and can determine the abnormal situation of the output power according to the magnitude relationship between the thyristor regulation ratio and the rated thyristor regulation ratio at the current gear. When the detected thyristor regulation ratio is greater than the rated thyristor regulation ratio, the output power abnormally rises; when the detected thyristor regulation ratio is less than the rated thyristor regulation ratio, the output power abnormally drops.

[0046] The above lists various situations when the output power abnormally rises and abnormally drops. Each situation can be recorded as a type of risk event. This application constructs a risk event query list based on various risk event types and test data, and the core is constructed around power abnormality. Power abnormality includes power abnormal drop and power abnormal rise. By querying the risk event query list with power and related parameter data, the risk event can be accurately determined.

[0047] Step S403, determining the corresponding risk event type according to the abnormal situation.

[0048] In some embodiments, the heating element is a positive temperature coefficient thermistor.

[0049] In some embodiments, the heating component includes a heating element. Determining a corresponding risk event type according to the abnormal situation includes: detecting that the abnormal situation is the abnormal decrease, obtaining a first preset parameter group of the heater, where the first preset parameter group includes the temperature parameter of the heating element, the thyristor control ratio, and the rotation speed of the fan; obtaining the detected values of the first preset parameter group and the rated values of the at least one first preset parameter corresponding to the heating gear; and determining the risk event type according to the magnitude relationship between the detected values and the rated values.

[0050] Among them, according to the principle of abnormal decrease in output power described above, the main reasons for the abnormal decrease in output power are mainly the increase in resistance and / or the decrease in the thyristor control ratio. The corresponding reasons are the increase in the temperature of the heating element. The possible risk event types are too low fan speed, the heater being toppled over or covered. Thus, other parameters besides power can be obtained: the fan speed, the temperature parameter of the heating element, and the thyristor control ratio.

[0051] Among them, when the controller detects an abnormal decrease in output power, it obtains the temperature parameter of the heating element, the rotation speed of the fan and the thyristor control ratio at the current gear, as well as the rated rotation speed range of the fan and the rated thyristor control ratio of the heating element at the current gear. It further verifies the abnormal output power of the heating element according to the temperature parameter and / or the thyristor control ratio of the heating element, and determines the risk event type according to the magnitude relationship between the detected rotation speed of the fan and the rated rotation speed range.

[0052] It should be noted that the first preset parameter group includes but is not limited to the temperature parameter of the heating element, the thyristor control ratio, and the rotation speed of the fan. According to the actual test data, other relevant parameters strongly related to the risk event type can also be selected. The present application does not limit this.

[0053] It can be seen that in this embodiment, by obtaining the first preset parameter group including the temperature parameter of the heating element, the rotation speed of the fan, the thyristor control ratio, and the output power, and comparing the magnitude relationship between the detected values and the rated values, the root cause of the problem of abnormal decrease in output power of the heater can be accurately located.

[0054] In some embodiments, determining the type of risk event according to the magnitude relationship between the detected value and the rated value includes: detecting that the detected temperature parameter of the heating element is greater than the rated resistance temperature parameter, and / or detecting that the detected thyristor regulation ratio of the heating element is less than the rated thyristor regulation ratio; and, detecting that the detected rotational speed of the fan is less than the lowest rated rotational speed within the rated rotational speed range, then determining that the type of risk event is too low fan rotational speed; detecting that the detected temperature parameter is greater than the rated resistance temperature parameter, and / or detecting that the detected thyristor regulation ratio of the heating element is less than the rated thyristor regulation ratio; and, detecting that the detected rotational speed belongs to the rated rotational speed range, then determining that the type of risk event is the heater being tipped over or covered.

[0055] Among them, it is determined whether the fan rotational speed is abnormal according to the magnitude relationship between the detected fan rotational speed and the rated rotational speed range. If the fan rotational speed is abnormal, then the corresponding type of risk event is determined to be too low fan rotational speed; if the fan rotational speed is normal, then the corresponding type of risk event is determined to be the heater being tipped over or covered.

[0056] It can be seen that in this embodiment, it is possible to clearly determine whether the abnormal power drop is caused by specific reasons such as too low fan rotational speed, the heater being tipped over, or covered, rather than just staying on the surface of detecting abnormal power, improving the accuracy of fault diagnosis.

[0057] Furthermore, the heater further includes a tipping detection sensor, and the first preset parameter group further includes the detection data of the tipping detection sensor. Whether the heater is tipped over can be detected through the tipping detection sensor, and thus the heater being tipped over or covered is classified into two types of risk events.

[0058] In some embodiments, the tipping detection sensor may specifically be a gravity sensor, an acceleration sensor, a gyroscope sensor, etc. Among them, for the gravity sensor, based on the principle of gravitational acceleration, the attitude of an object is judged by detecting the change in the gravity received by the object in different directions. When the heater is placed normally, the gravity direction detected by the gravity sensor is relatively stable; when the heater tips over, the gravity direction detected by the gravity sensor will change significantly, and the sensitive element inside the sensor will convert this gravity change into an electrical signal, thereby outputting different signal values to represent the tipping state of the heater. Among them, for the acceleration sensor, the motion state and attitude of an object are judged by detecting the acceleration change of the object in three-dimensional space. When the heater tips over, an acceleration change different from that in the normal placement state will be generated, and the acceleration sensor can capture these changes and convert them into digital signals or analog signals for output. The acceleration components in the x, y, and z axes can be measured, and by analyzing these components, it can be determined whether the heater has tipped over and the direction and degree of tipping. Among them, for the gyroscope sensor, based on the principle of conservation of angular momentum, it can measure the angular velocity of an object. When the heater tips over, there will be a change in angular velocity, and the gyroscope sensor can accurately measure this change in angular velocity and convert it into an electrical signal. By processing and analyzing these electrical signals, it can be judged whether the heater has tipped over and information such as the tipping speed and angle.

[0059] In addition, it is also possible to test, form a large number of actual test data of tipping events and covered events, statistically analyze their distribution, and according to the actual distribution, adopt a data processing algorithm that can significantly distinguish the two types of data to accurately distinguish tipping events and covered events.

[0060] In some embodiments, the heating component includes a heating element. Determining the corresponding risk event type according to the abnormal situation includes: when it is detected that the abnormal situation is the abnormal rise, obtaining a second preset parameter group of the heater, where the second preset parameter group includes the temperature parameter of the heating element, the rotation speed of the fan, the thyristor regulation ratio of the heating element, and the ambient temperature; obtaining the detected values of the second preset parameter group and the rated values of at least one second preset parameter corresponding to the heating gear; determining the risk event type according to the magnitude relationship between the detected values and the rated values.

[0061] Among them, according to the principle of abnormal increase in output power described above, the main reasons for the abnormal decrease in output power are mainly the decrease in resistance and / or the increase in the thyristor regulation ratio. The corresponding reasons are too low wind speed or too low wind temperature. The possible risk event types include too high fan speed, too low ambient temperature, and other fan impacts. Thus, other parameters besides power can be obtained: fan speed, temperature parameter of the heating element, thyristor regulation ratio, and ambient temperature.

[0062] Among them, when the controller detects an abnormal increase in output power, it obtains the temperature parameter of the heating element, the thyristor regulation ratio, and the fan speed at the current gear, as well as the rated speed range of the fan and the rated thyristor regulation ratio of the heating element at the current gear. It further verifies the abnormal output power of the heating element based on the temperature parameter and / or thyristor regulation ratio of the heating element, and determines the risk event type according to the magnitude relationship between the detected fan speed and the rated speed range and the ambient temperature.

[0063] It should be noted that the second preset parameter group includes, but is not limited to, the temperature parameter of the heating element, the thyristor regulation ratio, the fan speed, and the ambient temperature. Other relevant parameters strongly related to the risk event type can also be selected according to the actual test data, and the present application does not limit this.

[0064] It can be seen that in this embodiment, by obtaining the second preset parameter group including the temperature parameter of the heating element, the thyristor regulation ratio, the fan speed, the ambient temperature, and the output power, and comparing the magnitude relationship between the detected value and the rated value, the root cause of the problem of abnormal increase in the output power of the heater can be accurately located.

[0065] In some embodiments, the determining the risk event type according to the magnitude relationship between the detected value and the rated value includes: detecting that the detected temperature parameter of the heating element is less than the rated resistance temperature parameter, and / or detecting that the detected thyristor regulation ratio of the heating element is greater than the rated thyristor regulation ratio; and, detecting that the detected fan speed is greater than the highest rated speed of the rated speed range, then determining that the risk event type is too high fan speed; detecting that the detected temperature parameter is less than the rated resistance temperature parameter, and / or detecting that the detected thyristor regulation ratio of the heating element is greater than the rated thyristor regulation ratio; and, detecting that the ambient temperature is lower than the preset temperature threshold, then determining that the risk event type is too low ambient temperature.

[0066] Among them, it is determined whether the fan speed is abnormal according to the magnitude relationship between the detected fan speed and the rated speed range. If the fan speed is abnormal, the corresponding risk event type is determined to be too low fan speed; if the fan speed is normal, it is further determined whether the air temperature is normal according to the ambient temperature. If the ambient temperature is too low, the corresponding risk event type is determined to be too low ambient temperature. If the ambient temperature is normal, the problems of the fan and the ambient temperature are excluded, and there may be problems affected by other fans.

[0067] It can be seen that in this embodiment, it can be clearly judged that the abnormal increase in power is caused by specific reasons such as too high fan speed, too low ambient temperature or the influence of other fans, rather than just staying on the surface of finding power abnormality, which improves the accuracy of fault diagnosis.

[0068] Step S404, determine the control strategies for the heating component and the fan of the heater according to the risk event type, and regulate the heating component and the fan according to the control strategies.

[0069] In some embodiments, if the risk event type is too low fan speed, the speed of the fan is increased.

[0070] In some embodiments, if the risk event type is that the heater is toppled or covered, the fan and the heating component are turned off.

[0071] In some embodiments, if the risk event type is too high fan speed, the speed of the fan is decreased.

[0072] In some embodiments, if the risk event type is too low ambient temperature, the speed of the fan is decreased.

[0073] In some embodiments, if the risk event type is the influence of other fans, the speed of the fan is decreased.

[0074] In some embodiments, if the detected abnormal condition is that the power is abnormally decreased, the thyristor control ratio is increased so that the output power is increased.

[0075] Among them, the thyristor control ratio is increased by the method of reducing the trigger angle or the method of increasing the conduction angle.

[0076] In some embodiments, if the detected abnormal condition is that the power is abnormally increased, the thyristor control ratio is decreased so that the output power is decreased.

[0077] Among them, the thyristor control ratio is decreased by the method of increasing the trigger angle or the method of decreasing the conduction angle.

[0078] In addition, as Figure 5For the smart home system shown, the heater can send the real-time operation parameters and the detected risk event types to the terminal device, such as the application on the user's mobile phone. The user can view the real-time operation status of the heater and the risk event types through the mobile phone. For each risk event type, different prompting methods can be adopted.

[0079] In some embodiments, the heater is communicatively connected to the terminal device, and the terminal device is used to perform risk prompting for the abnormal conditions of the heater. The generation process of the risk prompting is as follows: receiving the output power from the heater, the detected values of the preset parameter group, and the risk event type, where the preset parameter group includes the first preset parameter group and the second preset parameter group; determining the risk level according to the risk event type; determining the prompt content according to the risk event type and whether user assistance operation is required, where the prompt content includes the risk event type and the corresponding solution; determining the prompt method according to the risk level and whether user assistance operation is required, where the prompt method includes notification prompt and silent prompt. The notification prompt refers to directly popping up a prompt on the terminal device and / or prompting through the sound playback system of the terminal device. The silent prompt includes prompting when the user opens the application of the heater, or recording and highlighting in the product work log of the heater; generating a corresponding risk prompt display interface according to the prompt content and the prompt method.

[0080] Specifically, according to whether user assistance operation is required and the degree of danger, the prompts for different risk event types can be classified into different levels of notifications.

[0081] Among them, for the heater being toppled or covered, the mobile phone system pushes a high-priority emergency notification, prompting the user that the heater is toppled or covered, and prompting the user with the corresponding safety operation guidelines. The heater itself continuously emits a high-decibel alarm sound until the user discovers and processes it and clicks to stop the alarm. For example, for the risk event of the heater being toppled, the first interface 61 as shown in Figure 6 is displayed. The first interface 61 includes the first prompt information 611, and the first prompt information 611 is "Heater toppled". When the user clicks on the first prompt information 611, the specific status of the current heater is displayed, including the power-on status (power off), the current temperature, and the safety operation guidelines, such as "Before restarting the heater, carefully check the appearance and internal parts of the device for damage". For example, for the risk event of the heater being covered, the display is as shown in Figure 7The second interface 62 shown, the second interface 62 includes a second prompt message 621, and the second prompt message 621 is "The heater is covered". When the user clicks on the second prompt message 621, the specific status of the current heater is displayed, including the power-on status (powered off), the current temperature, and safety operation guidelines, such as "Please check the temperature of the covering item to avoid being scalded when removing the cover. Before restarting the heater, carefully check the appearance and interior of the device for any damage."

[0082] Among them, for the risk event that the air temperature of the heater is too low, the mobile phone system pushes a high-priority emergency notification to prompt the user that the current ambient temperature is too low. For example, it is displayed as Figure 9 shown in the third interface 63. The third interface 63 includes a third prompt message 631, and the third prompt message 631 is "The ambient temperature is too low, and the heating efficiency of the heater decreases". When the user clicks on the third prompt message 631, the specific status of the current heater is displayed, including the current ambient temperature, the normal working ambient temperature, an explanation of the impact of the low ambient temperature on the performance of the heater, such as a warm reminder "The ambient temperature is too low, and the heating effect of the heater decreases", and a coping method is provided, such as "It is recommended to move the heater to a warm environment for use, or turn on the low-temperature compensation function."

[0083] Among them, for the risk event of the influence of other fans, the mobile phone system pushes a medium-priority emergency notification to prompt the user that the heater is interfered by other fans. For example, it is displayed as Figure 10 shown in the fourth interface 64. The fourth interface 64 includes a fourth prompt message 641, and the fourth prompt message 641 is "Other fan interference detected, and the heater is working unstably". When the user clicks on the fourth prompt message 641, the specific status of the current heater is displayed, including the fan speed, the actual detected wind speed of the heater, the degree of influence of other fans, and an explanation of the reason and consequence of the influence of other fans, such as "The air flow or electromagnetic interference generated by other nearby fans causes the performance of the heater to fluctuate"; a coping method is given, such as "Adjust the placement position of the heater to be away from other fan devices."

[0084] Among them, for the risk event of abnormal fan speed of the heater, if the heater returns to normal by adjusting the speed and heating temperature, the prompt step can be omitted, and only the abnormal situation is recorded in the product log. If the heater cannot return to normal by adjusting the speed and heating temperature, the user is prompted that the heater is abnormal. For example, it is displayed as Figure 11 shown in the fifth interface 65. The fifth interface 65 includes a fifth prompt message 651, and the fifth prompt message 651 is "The heater is abnormal, and the adjustment is ineffective". When the user clicks on the fifth prompt message 651, the specific status of the current heater is displayed, including the abnormal status, the adjustment parameter record, the problems still existing after adjustment, and a solution suggestion is given, such as "It is recommended to contact the after-sales service for repair to ensure safe use."

[0085] It can be seen that in the embodiment of the present application, the controller obtains the heating gear, output power of the heating component, and the rated power range corresponding to the heating gear; determines the abnormal situation of the output power according to the magnitude relationship between the output power and the rated power range; determines the corresponding risk event type according to the abnormal situation; determines the control strategies for the heating component and the fan of the heater according to the risk event type, and regulates the heating component and the fan according to the control strategies. Therefore, compared with the current mechanism of adjusting the rotation speed based on the power difference to correct the power or directly turning off the heater according to the power change, the present application comprehensively analyzes the risk event categories around power detection and power abnormality and takes corresponding control measures, which can effectively cover various non-standard risk events of the heater, so as to comprehensively and without omission solve various safety risks that the heater may have, thereby improving the safety and stability of the heater.

[0086] The above mainly introduces the solution of the embodiment of the present application from the perspective of the execution process on the method side. It can be understood that in order for the server to implement the above functions, it includes the corresponding hardware structure and / or software module for executing each function. Those skilled in the art should easily realize that, combining the units and algorithm steps of each example described in the embodiments provided in this article, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application and design constraint conditions of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0087] The embodiment of the present application can divide the server into functional units according to the above method examples. For example, each functional unit can be divided corresponding to each function, or two or more functions can be integrated into one processing module. The above integrated unit can be implemented in the form of hardware or in the form of a software program module. It should be noted that the division of units in the embodiment of the present application is illustrative, only a logical function division, and there may be other division methods in actual implementation.

[0088] In the case of adopting an integrated unit, please refer to Figure 8 , Figure 8 which is a functional unit structure block diagram of a heater state control device based on power detection provided by the embodiment of the present application. The heater state control device 8 includes: An acquisition unit 801, configured to acquire the heating gear, output power of the heating component, and the rated power range corresponding to the heating gear; A processing unit 802 is configured to determine an abnormal condition of the output power according to a magnitude relationship between the output power and the rated power range; and determine a corresponding risk event type according to the abnormal condition; and determine control strategies for the heating component and the fan of the heater according to the risk event type.

[0089] It can be seen that in the embodiment of the present application, the controller obtains the heating gear, the output power of the heating component, and the rated power range corresponding to the heating gear; determines the abnormal condition of the output power according to the magnitude relationship between the output power and the rated power range; determines the corresponding risk event type according to the abnormal condition; determines control strategies for the heating component and the fan of the heater according to the risk event type, and regulates the heating component and the fan according to the control strategies. Therefore, compared with the current mechanism of adjusting the rotation speed based on the power difference to correct the power or directly turning off the heater according to the power change, the present application comprehensively analyzes the risk event categories around power detection and power abnormality and takes corresponding control measures, which can effectively cover various non-standard risk events of the heater, so as to comprehensively and without omission solve various safety risks that the heater may have, thereby improving the safety and stability of the heater.

[0090] In some embodiments, when the processing unit 802 determines the abnormal condition of the output power according to the magnitude relationship between the output power and the rated power range, it includes: if the output power is less than the minimum rated power of the rated power range, determining that the abnormal condition is an abnormal decrease; if the output power is greater than the maximum rated power of the rated power range, determining that the abnormal condition is an abnormal increase.

[0091] In some embodiments, when the processing unit 802 determines the corresponding risk event type according to the abnormal condition, it includes: detecting that the abnormal condition is the abnormal decrease, then obtaining a first preset parameter group of the heater, where the first preset parameter group includes the temperature parameter of the heating element, the thyristor regulation ratio of the heating element, and the rotation speed of the fan; obtaining the detected values of the first preset parameter group and the rated values of at least one first preset parameter corresponding to the heating gear; and determining the risk event type according to the magnitude relationship between the detected values and the rated values.

[0092] In some embodiments, the processing unit 802 determines the risk event type according to the magnitude relationship between the detected value and the rated value, including: when it is detected that the detected temperature parameter of the heating element is greater than the rated resistance temperature parameter, and it is detected that the detected rotation speed of the fan is less than the lowest rated rotation speed within the rated rotation speed range, then it is determined that the risk event type is too low fan rotation speed; when it is detected that the detected temperature parameter is greater than the rated resistance temperature parameter, and it is detected that the detected rotation speed belongs to the rated rotation speed range, then it is determined that the risk event type is the heater being toppled or covered.

[0093] In some embodiments, the processing unit 802 determines the corresponding risk event type according to the abnormal situation, including: when it is detected that the abnormal situation is the abnormal increase, the second preset parameter group of the heater is obtained, and the second preset parameter group includes the temperature parameter of the heating element, the rotation speed of the fan, the thyristor regulation ratio of the heating element, and the ambient temperature; the detected values of the second preset parameter group and the rated values of at least one second preset parameter corresponding to the heating gear are obtained; the risk event type is determined according to the magnitude relationship between the detected value and the rated value.

[0094] In some embodiments, the heating assembly includes a heating element, and the processing unit 802 determines the risk event type according to the magnitude relationship between the detected value and the rated value, including: when it is detected that the detected temperature parameter of the heating element is less than the rated resistance temperature parameter, and it is detected that the detected rotation speed of the fan is greater than the highest rated rotation speed within the rated rotation speed range, then it is determined that the risk event type is too high fan rotation speed; when it is detected that the detected temperature parameter is less than the rated resistance temperature parameter, and it is detected that the ambient temperature is lower than the preset temperature threshold, then it is determined that the risk event type is too low ambient temperature.

[0095] In some embodiments, the heating element is a positive temperature coefficient thermistor.

[0096] In some embodiments, the heater is communicatively connected to a terminal device, and the terminal device is configured to provide risk alerts for abnormal conditions of the heater. The process of generating the risk alerts is as follows: receiving the output power from the heater, the detected values of a preset parameter set, and the risk event type, where the preset parameter set includes a first preset parameter set and a second preset parameter set; determining the risk level according to the risk event type; determining the alert content according to the risk event type and whether user assistance is required for operation, where the alert content includes the risk event type and the corresponding solution; determining the alert method according to the risk level and whether user assistance is required for operation, where the alert method includes a notification alert and a silent alert. The notification alert refers to directly popping up an alert on the terminal device and / or providing an alert through the sound playback system of the terminal device. The silent alert includes providing an alert when the user opens the application program of the heater, or recording and highlighting in the product work log of the heater; generating a corresponding risk alert display interface according to the alert content and the alert method.

[0097] It should be noted that for the specific implementation process of this embodiment, reference may be made to the specific implementation process described in the above method embodiment, and details will not be repeated here.

[0098] The embodiments of the present application provide a computer-readable storage medium, on which computer programs / instructions are stored, and when the computer programs / instructions are executed by a processor, the steps of the method according to any possible embodiment are implemented.

[0099] It should be noted that for the foregoing method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations. However, those skilled in the art should understand that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present application.

[0100] In the above embodiments, the descriptions of the various embodiments have their own emphases. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0101] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the above division of units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed coupling or direct coupling or communication connection between each other can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical or other form.

[0102] The units described above as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they can be located in one place, or can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0103] In addition, in each embodiment of the present application, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0104] If the above integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a memory and includes several instructions to enable a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the above methods in each embodiment of the present application. The aforementioned memory includes: USB flash drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disc and other media that can store program codes.

[0105] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program. The program can be stored in a computer-readable memory. The memory can include: flash drive, read-only memory (abbreviation: ROM), random access memory (abbreviation: RAM), magnetic disk or optical disc, etc.

[0106] The above has introduced the embodiments of the present application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A method for controlling a heater state based on power detection, characterized in that: A controller applied to a heater, the method comprising: Obtaining a heating level, an output power, and a rated power range corresponding to the heating level of the heating component; Determining an abnormality of the output power according to a magnitude relationship between the output power and the rated power range; Determine the corresponding risk event type according to the abnormal situation; The control strategy of the heating component and the fan of the heater is determined according to the risk event type, and the heating component and the fan are regulated according to the control strategy.

2. The method according to claim 1, characterized in that The determining the abnormality of the output power according to the magnitude relationship between the output power and the rated power range includes: If the output power is less than the minimum rated power of the rated power range, determining that the abnormal condition is an abnormal decrease; If the output power is greater than the maximum rated power of the rated power range, it is determined that the abnormal situation is an abnormal increase.

3. The method according to claim 2, characterized in that The heating component includes a heating element, and the determining the corresponding risk event type according to the abnormal situation includes: When the abnormal condition is detected to be the abnormal reduction, a first preset parameter group of the heater is obtained, wherein the first preset parameter group includes a temperature parameter of the heating element, a thyristor control ratio of the heating element, and a rotation speed of the fan; Acquire the detected value of the first preset parameter group and the rated value of at least one first preset parameter corresponding to the heating gear; The risk event type is determined according to the magnitude relationship between the detected value and the rated value.

4. The method according to claim 3, characterized in that The determining the risk event type according to the magnitude relationship between the detected value and the rated value includes: If it is detected that the detected temperature parameter of the heating element is greater than the rated resistance temperature parameter, and / or it is detected that the detected thyristor control ratio of the heating element is less than the rated thyristor control ratio; and if it is detected that the detected speed of the fan is less than the lowest rated speed in the rated speed range, then the risk event type is determined to be that the fan speed is too low; If it is detected that the detected temperature parameter is greater than the rated resistance temperature parameter, and / or it is detected that the detected thyristor control ratio of the heating element is less than the rated thyristor control ratio; and if it is detected that the detected speed belongs to the rated speed range, then the risk event type is determined as the heater tipping over or being covered.

5. The method according to claim 2, characterized in that: The heating component includes a heating element, and the determining the corresponding risk event type according to the abnormal situation includes: If the abnormal condition is detected as the abnormal increase, a second preset parameter group of the heater is obtained, wherein the second preset parameter group includes a temperature parameter of the heating element, a rotation speed of the fan, a thyristor control ratio of the heating element, and an ambient temperature; Acquire the detected value of the second preset parameter group and the rated value of at least one second preset parameter corresponding to the heating gear; The risk event type is determined according to the magnitude relationship between the detected value and the rated value.

6. The method according to claim 5, characterized in that The determining the risk event type according to the magnitude relationship between the detected value and the rated value includes: If it is detected that the detected temperature parameter of the heating element is less than the rated resistance temperature parameter, and / or it is detected that the detected thyristor control ratio of the heating element is greater than the rated thyristor control ratio; and if it is detected that the detected speed of the fan is greater than the highest rated speed of the rated speed range, then the risk event type is determined to be that the fan speed is too high; If it is detected that the detected temperature parameter is less than the rated resistance temperature parameter, and / or it is detected that the detected thyristor control ratio of the heating element is greater than the rated thyristor control ratio; and if it is detected that the ambient temperature is lower than the preset temperature threshold, then the risk event type is determined to be that the ambient temperature is too low.

7. The method according to claim 4 or 6, characterized in that: The heater is in communication connection with a terminal device, and the terminal device is used to issue a risk warning for abnormal conditions of the heater. The process of generating the risk warning is as follows: receiving the output power, a detection value of a preset parameter group and the risk event type from the heater, wherein the preset parameter group includes a first preset parameter group and a second preset parameter group; Determine the degree of risk based on the type of risk event described; Determine the prompt content according to the risk event type and whether user assistance is required, and the prompt content includes the risk event type and the corresponding solution; Determine the prompt mode according to the risk level and whether user assistance is required, the prompt mode includes notification prompt and silent prompt, the notification prompt refers to a pop-up prompt directly on the terminal device and / or a prompt through the sound playback system of the terminal device, the silent prompt includes a prompt when the user opens the application of the heater, or is recorded and highlighted in the product work log of the heater; A corresponding risk warning display interface is generated according to the prompt content and the prompt method.

8. A heater state control device based on power detection, characterized in that: A controller applied to a heater, the heater state control device comprising: An acquisition unit, used to acquire a heating gear, an output power, and a rated power range corresponding to the heating gear of the heating component; A processing unit is used to determine an abnormal situation of the output power based on the relationship between the output power and the rated power range; and, based on the abnormal situation, determine a corresponding risk event type; and, based on the risk event type, determine a control strategy for the heating component and the fan of the heater, and regulate the heating component and the fan according to the control strategy.

9. A fan heater, characterized in that: The method comprises a controller, a heating component and a fan, wherein the controller is used to execute the step instructions in the method as claimed in any one of claims 1 to 7.

10. A controller, characterized in that: The method comprises a processor and a memory, wherein one or more programs are stored in the memory, and the one or more programs are called by the processor to execute the step instructions in the method according to any one of claims 1 to 7.

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