An electric heating system and a control method thereof, and an electronic device

Abstract

The application provides an electric heating system and a control method thereof and an electronic device, comprising: a detection signal generation module for generating a capacitance detection signal; a capacitance signal acquisition module electrically connected with the detection signal generation module, for processing the capacitance detection signal into a voltage signal; a control module electrically connected with the capacitance signal acquisition module, for receiving the voltage signal and analyzing to obtain voltage data, judging the environmental medium state where the electric heating device is located according to the voltage data and outputting a corresponding control signal; and an electric heating device for executing a corresponding control command according to the control signal. The application solves the problem that the conventional electric heater for deicing needs to additionally increase an independent detection device to accurately detect the icing state, greatly simplifies the physical structure of the product, greatly reduces the volume of the product, greatly improves the usability of the application and expands the application scenarios of the application.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric heating system control, in particular to an electric heating system and a control method thereof, and an electronic device. BACKGROUND

[0002] When the air conditioner is working in the heating mode, the condenser temperature of the air conditioner outdoor unit is low, and when the outdoor humidity is large, the condenser is easy to frost. The air conditioner will start the defrosting work of the condenser, and the frost of the outdoor unit melts into water. When the outdoor temperature is too low, the melt water is easy to freeze at the water collection place of the bottom plate, drain port and the like, causing the drain to be blocked, affecting the normal work of the air conditioner. And when it snows outside, part of the ice and snow may also directly enter the water collection place of the outdoor unit, forming an ice state, causing the drain to be blocked. The current technical solution is to increase an electric heating device on the bottom plate of the outdoor unit, and increase a temperature sensor near the bottom plate, to control the work of the electric heating device by the temperature signal sensed by the temperature sensor, to perform the ice melting treatment of the bottom plate. There is also a temperature sensor placed at a position far away from the bottom plate, only sensing the outdoor air temperature, and when the outdoor temperature is relatively low (zero or below), the electric heating device of the bottom plate is started to prevent the bottom plate from freezing.

[0003] The problem of the current technology is that only the temperature sensor of the air conditioner outdoor unit is used to control the work of the bottom plate electric heating device, and whether the bottom plate is truly in the ice state is not detected, which is easy to cause waste of energy. If the current technical solution needs to detect whether the bottom plate is frozen, an independent ice detection device needs to be additionally added. The patent "CN113669882A ice detection device, ice melting system and air conditioner" discloses a scheme for detecting the ice state by using wind energy, and an additional detection device is added. The patent "CN109612054A ice melting control method for outdoor unit bottom plate of air conditioner" discloses an ice melting control method for the bottom plate, which controls the ice melting of the bottom plate based on the signal of the pressure sensor, and the cost is high.

[0004] Therefore, the prior art needs to be further developed. SUMMARY

[0005] The present application aims to overcome the above technical deficiencies, and provides an electric heating system and a control method thereof, and an electronic device, to solve the problems existing in the prior art.

[0006] To achieve the above technical purpose, according to the first aspect of the present application, an electric heating system is provided, which comprises:

[0007] A detection signal generation module is configured to generate a capacitance detection signal.

[0008] The capacitance signal acquisition module is electrically connected with the detection signal generation module and is configured to process the capacitance detection signal into a voltage signal.

[0009] The control module is electrically connected with the capacitance signal acquisition module, configured to receive the voltage signal and analyze voltage data, determine the environmental medium state of the electric heating device according to the voltage data, and output a corresponding control signal.

[0010] The electric heating device is electrically connected with the control module, configured to execute a corresponding control command according to the control signal.

[0011] Specifically, the detection signal generation module comprises:

[0012] The detection signal generation circuit comprises a capacitance detection signal generation end, a first capacitor and a capacitance detection signal output end, wherein one end of the first capacitor is connected with the capacitance detection signal generation end, and the other end of the first capacitor is connected with the capacitance detection signal output end.

[0013] Specifically, the capacitance signal acquisition module comprises:

[0014] The capacitance signal detection circuit comprises a capacitance detection signal input end, a second capacitor, a second diode and a voltage signal detection end, wherein one end of the second capacitor is connected with the capacitance detection signal input end, the other end of the second capacitor is connected with the anode of the second diode, and the cathode of the second diode is connected with the voltage signal detection end.

[0015] Specifically, the control module and the external power supply are in control connection for outputting a corresponding control signal to control the on-off of the external power supply, the electric heating device comprises a first power supply terminal and a second power supply terminal, the first power supply terminal and the second power supply terminal are connected with the external power supply for supplying power to the electric heating device, the detection signal output end and the detection signal input end are respectively connected with the first power supply terminal and / or the second power supply terminal, or the electric heating device can be provided as two, and the detection signal output end and the detection signal input end are respectively connected with the first power supply terminal or the second power supply terminal of the two electric heating devices.

[0016] According to the second aspect of the present application, a control method of an electric heating system is provided, comprising:

[0017] S100, starting the detection signal generation module to generate a capacitance detection signal;

[0018] S200, the capacitance signal acquisition module processes the capacitance detection signal into a voltage signal;

[0019] S300, the control module receives the voltage signal and parses the voltage data, and judges the environmental medium state where the electric heating device is located according to the voltage data and outputs a corresponding control signal;

[0020] S400, the electric heating device executes a corresponding control command according to the control signal.

[0021] Specifically, the S200 comprises:

[0022] The capacitive detection signal generated by the detection signal generation module is coupled by the first capacitor and the second capacitor and input to the capacitive detection signal input end from the capacitive detection signal output end, and the capacitive signal acquisition module processes the capacitive detection signal into a voltage signal.

[0023] Specifically, the S300 comprises:

[0024] The control module calculates the equivalent capacitance value of the environmental medium where the electric heating device is located according to the voltage data, judges whether the equivalent capacitance value is greater than or equal to a first preset threshold, if yes, judges whether the equivalent capacitance value is greater than or equal to a second preset threshold, if no, judges that the electric heating device is placed in ice, and outputs a control signal about controlling the electric heating device to be turned on.

[0025] Specifically, the S300 further comprises:

[0026] If the equivalent capacitance value is less than the first preset threshold, it is judged that the electric heating device is placed in air, and a control signal about controlling the electric heating device to be turned off is output.

[0027] Specifically, the S300 further comprises:

[0028] If the equivalent capacitance value is greater than or equal to the second preset threshold, it is judged that the electric heating device is placed in water, and a control signal about controlling the electric heating device to maintain the working state unchanged is output.

[0029] According to a third aspect of the present application, an electronic device is provided, comprising:

[0030] A memory and a processor, the memory has computer readable instructions stored thereon, and the computer readable instructions are executed by the processor to realize the control method of the electric heating system.

[0031] The present application has the following advantages:

[0032] The application provides a novel electric heating system, a control method thereof and electronic equipment, and realizes switch control of an electric heater by detecting icing state of an electric heating device body. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural diagram of an electric heating system provided in the embodiment of the application;

[0034] Figure 2 is a structural diagram of an electric heating device provided in the embodiment of the application;

[0035] Figure 3 is a structural diagram of a detection signal generation circuit and a capacitance signal detection circuit provided in the embodiment of the application;

[0036] Figure 4 is a flowchart of a control method of the electric heating system provided in the embodiment of the application;

[0037] Figure 5 is a structural diagram of a detection signal generation circuit, a capacitance signal detection circuit and an electric heater provided in the embodiment of the application;

[0038] Figure 6 is a structural diagram of a detection signal generation circuit, a capacitance signal detection circuit and an electric heater provided in another embodiment of the application;

[0039] Figure 7 is a structural diagram of a detection signal generation circuit, a capacitance signal detection circuit and an electric heater provided in another embodiment of the application;

[0040] Figure 8 is a schematic diagram of a detection parameter calibration operation provided in the embodiment of the application;

[0041] Figure 9 is a schematic diagram of an electric heating device provided in another embodiment of the application, in which a resistance detection circuit is added;

[0042] Figure 10 is a schematic diagram of an electric heating device provided in another embodiment of the application, in which a voltage detection and current detection circuit are added;

[0043] 1, first power supply terminal; 2, second power supply terminal; 3, capacitance detection signal generation end; 4, voltage signal detection end; 5, capacitance detection signal output end; 6, capacitance detection signal input end. DETAILED DESCRIPTION

[0044] In order to make the technical scheme of the present application better understood, the technical scheme of the present application will be described clearly and completely below in combination with the drawings of the present application. Based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without making any creative effort should all belong to the scope of protection of the present application. In addition, the direction words mentioned in the following embodiments, such as "up", "down", "left", "right", etc. are only the directions of the drawings, therefore, the direction words used are used for illustration but not for limiting the present application.

[0045] The present application will be further described below in combination with the drawings and preferred embodiments.

[0046] Please participate Figures 1-4 The present embodiment provides an electric heating system, which comprises:

[0047] A detection signal generation module 100 is configured to generate a capacitance detection signal.

[0048] A capacitance signal acquisition module 200 is electrically connected to the detection signal generation module 100 and configured to process the capacitance detection signal into a voltage signal.

[0049] A control module 300 is electrically connected to the capacitance signal acquisition module 200 and configured to receive the voltage signal and analyze to obtain voltage data, judge the environmental medium state where an electric heating device 400 is located according to the voltage data and output a corresponding control signal.

[0050] The electric heating device 400 is electrically connected to the control module 300 and configured to execute a corresponding control command according to the control signal.

[0051] Specifically, the detection signal generation module 100 comprises:

[0052] The detection signal generation circuit comprises a capacitance detection signal generation end 3, a first capacitor C1 and a capacitance detection signal output end 5. The capacitance detection signal generation end 3 is connected to one end of the first capacitor C1, and the other end of the first capacitor C1 is connected to the capacitance detection signal output end 5.

[0053] Specifically, the detection signal generation circuit further comprises a first resistor R1. The other end of the first capacitor C1 is connected to the capacitance detection signal output end 5 and one end of the first resistor R1, and the other end of the first resistor R1 is grounded. The first resistor R1 provides a discharge path for the first capacitor C1.

[0054] Specifically, the capacitance signal acquisition module 200 comprises:

[0055] The capacitance signal detection circuit comprises a capacitance detection signal input end 6, a second capacitance C2, a second diode D2 and a voltage signal detection end 4, the detection signal input end is connected with one end of the second capacitance C2, the other end of the second capacitance C2 is connected with the anode of the second diode, and the cathode of the second diode is connected with the voltage signal detection end 4.

[0056] The capacitance signal detection circuit further comprises a second capacitance C2, a third capacitance C3, a first diode D1 and a second resistance R2, the detection signal input end is connected with one end of the second capacitance C2, the other end of the second capacitance C2 is connected with the cathode of the first diode D2 and the anode of the second diode, the cathode of the second diode is connected with one end of the second resistance R2, one end of the third capacitance C3 and the voltage signal detection end 4, and the anode of the first diode D2 is connected with the other end of the second resistance R2, the other end of the third capacitance C3 and the ground. The third capacitance C3 is a filter capacitance, and the second resistance R2 is a voltage dividing resistance. The above capacitance signal detection circuit is used for processing the capacitance detection signal into a voltage signal and inputting the voltage signal to the control module 300 through the voltage signal detection end 4.

[0057] Specifically, the control module 300 and the external power supply are connected for outputting a corresponding control signal to control the on-off of the external power supply, the electric heating device 400 comprises a first power supply terminal 1 and a second power supply terminal 2, the first power supply terminal 1 and the second power supply terminal 2 are connected with the external power supply for supplying power to the electric heating device 400, the detection signal output end and the detection signal input end are respectively connected with the first power supply terminal 1 and / or the second power supply terminal 2, or the electric heating device 400 can be provided as two, and the detection signal output end and the detection signal input end are respectively connected with the first power supply terminal 1 or the second power supply terminal 2 in the two electric heating devices 400.

[0058] It should be noted that when direct current or alternating current is passed through the first power supply terminal 1 or the second power supply terminal 2 of the electric heating device 400, the heat of the heating body is dissipated through the insulation layer or the heat conduction layer, thereby playing a role of heating the ice.

[0059] Please continue to refer to Figures 1-4 The embodiment provides a control method of an electric heating system, and the method comprises the following steps:

[0060] S100, starting the detection signal generation module 100 to generate a capacitance detection signal.

[0061] It should be noted that the detection signal generation module 100 includes a detection signal generation chip, the detection signal generation chip includes a detection signal generation pin, and the detection signal generation chip can generate a high-level or low-level capacitance detection signal through program control of the detection signal generation pin.

[0062] It should be noted that before step S100, a first preset threshold and a second preset threshold are preset, the first preset threshold is smaller than the second preset threshold, and the first preset threshold and the second preset threshold are calibrated by a detection parameter calibration operation, please refer to Figure 8 The detection parameter calibration operation includes:

[0063] The electric heating device 400 is installed in an air conditioner prototype, and the installed electric heating device 400 is respectively placed in air, water and ice. The detection signal generation module 100 is started to generate a capacitance detection signal. The capacitance signal acquisition module 200 processes the capacitance detection signal into a voltage signal. The control module 300 receives the voltage signal and analyzes to obtain voltage data. The control module 300 calculates and records the equivalent capacitance values of the electric heating device 400 respectively placed in air, water and ice according to the voltage data. The first preset threshold and the second preset threshold are calibrated according to the measured equivalent capacitance values when the electric heating device 400 is respectively placed in air, water and ice.

[0064] S200, the capacitance signal acquisition module 200 processes the capacitance detection signal into a voltage signal.

[0065] Specifically, the S200 includes:

[0066] The capacitance detection signal generated by the detection signal generation module 100 is coupled by the first capacitor C1 and the second capacitor C2 and input to the capacitance detection signal input end 6 from the capacitance detection signal output end 5. The capacitance signal acquisition module 200 processes the capacitance detection signal into a voltage signal.

[0067] S300, the control module 300 receives the voltage signal and analyzes to obtain voltage data, and judges the environment medium state of the electric heating device 400 according to the voltage data and outputs a corresponding control signal.

[0068] It should be noted that the first power supply terminal 1 and the second power supply terminal 2 of the electric heating device 400 are provided with a detection signal generating circuit and a capacitance signal detection circuit, and the equivalent capacitance value of the environmental medium in which the electric heating device 400 is located is detected to determine the medium state near the electric heating device. Since the dielectric constants of air, water and ice are different, the icing state can be determined by detecting the equivalent capacitance value of the environmental medium in which the electric heating device 400 is located. The electric heating device is powered to melt ice only when icing occurs, thereby saving electric energy. The icing state of the electric heating device 400 is detected to realize the on-off control of the electric heating device. The present application solves the problem that the conventional electric heating device for deicing needs to be additionally provided with a separate detection device to accurately detect the icing state, greatly simplifies the physical structure of the product, greatly reduces the volume of the product, greatly improves the usability of the present application, and expands the application scenarios of the present application.

[0069] Specifically, the S300 includes:

[0070] The control module 300 calculates the equivalent capacitance value of the environmental medium in which the electric heating device 400 is located according to the voltage data, and determines whether the equivalent capacitance value is greater than or equal to a first preset threshold value. If yes, it is determined whether the equivalent capacitance value is greater than or equal to a second preset threshold value. If no, it is determined that the electric heating device 400 is placed in ice, and a control signal for turning on the electric heating device 400 is output.

[0071] It should be noted that when the environment in which the electric heating device 400 is located has no water and no ice, the environment in which the electric heating device 400 is located is air. Preferably, when the electric heating device 400 is applied to an air conditioner outdoor unit, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is air, and the detected electric heating device capacitance is small at this time. That is, when the equivalent capacitance value is less than the first preset threshold value, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is air. When the air conditioner outdoor unit chassis has water, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is water, and the detected electric heating device capacitance is large at this time. That is, when the equivalent capacitance value is greater than or equal to the second preset threshold value, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is water. When the chassis has ice, the medium between the electric heating device 400 and the outdoor unit chassis is ice, and the detected equivalent capacitance value is between the environmental medium being air or the environmental medium being water. That is, when the equivalent capacitance value is greater than or equal to the first preset threshold value and less than the second preset threshold value, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is ice.

[0072] It can be understood that the application realizes the on-off control of the electric heater by detecting the icing state of the body of the electric heating device 400. The application solves the problem that the conventional electric heater used for deicing needs to additionally increase a separate detection device to accurately detect the icing state, greatly simplifies the physical structure of the product, greatly reduces the volume of the product, greatly improves the usability of the application, and expands the application scenarios of the application.

[0073] Specifically, the S300 further includes:

[0074] If the equivalent capacitance value is less than the first preset threshold, it is judged that the electric heating device 400 is placed in the air, and a control signal about controlling the electric heating device 400 to be turned off is output.

[0075] Specifically, the S300 further includes:

[0076] If the equivalent capacitance value is greater than or equal to the second preset threshold, it is judged that the electric heating device 400 is placed in water, and a control signal about controlling the electric heating device 400 to maintain the working state unchanged is output.

[0077] S400, the electric heating device 400 executes the corresponding control command according to the control signal.

[0078] Please refer to Figure 5 The application provides another specific embodiment, which provides a control method of an electric heating system, in which specific embodiment:

[0079] A capacitance detection circuit for a single-path electric heater arranged in an air conditioner outdoor unit is provided, in which embodiment, the detection signal output end and the detection signal input end are connected with the first power supply terminal 1 or the second power supply terminal 2 of the electric heating device 400 at the same time, and the circuit detects the equivalent capacitance between the electric heater and the chassis of the air conditioner outdoor unit and the ground. When the chassis is free of water and ice, the medium between the electric heating device 400 and the chassis of the outdoor unit is air, and at this time, the detected electric heater capacitance is relatively small; when the chassis is filled with water, the medium between the electric heating device 400 and the chassis of the outdoor unit is water, and at this time, the detected electric heater capacitance is relatively large. When the chassis is filled with ice, the medium between the electric heating device 400 and the chassis of the outdoor unit is ice, and at this time, the detected electric heater capacitance is between air and water, that is, when the equivalent capacitance value is less than the first preset threshold, the medium between the electric heating device 400 and the chassis of the air conditioner outdoor unit is air, when the equivalent capacitance value is greater than or equal to the second preset threshold, the medium between the electric heating device 400 and the chassis of the air conditioner outdoor unit is water, and when the equivalent capacitance value is greater than or equal to the first preset threshold and less than the second preset threshold, the medium between the electric heating device 400 and the chassis of the air conditioner outdoor unit is ice.

[0080] Please refer to Figure 6The present application provides another embodiment, which provides a control method of an electric heating system, in the embodiment:

[0081] A capacitance detection circuit for a single-path electric heater in an air conditioner outdoor unit is provided, in the embodiment, a detection signal output end and a detection signal input end are connected with a first power supply terminal 1 and a second power supply terminal 2 of the electric heating device 400 respectively, and the circuit detects the equivalent capacitance between the electric heater and the air conditioner outdoor unit chassis and the ground. When there is no water and no ice on the chassis, the medium between the electric heating device 400 and the outdoor unit chassis is air, and at this time, the detected electric heater capacitance is relatively small; when the chassis has water, the medium between the electric heating device 400 and the outdoor unit chassis is water, and at this time, the detected electric heater capacitance is relatively large. When the chassis has ice, the medium between the electric heating device 400 and the outdoor unit chassis is ice, and at this time, the detected electric heater capacitance is between air and water, that is, when the equivalent capacitance value is less than a first preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is air, when the equivalent capacitance value is greater than or equal to a second preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is water, and when the equivalent capacitance value is greater than or equal to the first preset threshold and less than the second preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is ice.

[0082] Please refer to Figure 7 The present application provides another embodiment, which provides a control method of an electric heating system, in the embodiment:

[0083] A capacitance detection circuit for a single-path electric heater in an air conditioner outdoor unit is provided, in the embodiment, a detection signal output end and a detection signal input end are connected with a first power supply terminal 1 and a second power supply terminal 2 of the electric heating device 400 respectively, and the circuit detects the equivalent capacitance between the electric heater and the air conditioner outdoor unit chassis and the ground. When there is no water and no ice on the chassis, the medium between the electric heating device 400 and the outdoor unit chassis is air, and at this time, the detected electric heater capacitance is relatively small; when the chassis has water, the medium between the electric heating device 400 and the outdoor unit chassis is water, and at this time, the detected electric heater capacitance is relatively large. When the chassis has ice, the medium between the electric heating device 400 and the outdoor unit chassis is ice, and at this time, the detected electric heater capacitance is between air and water, that is, when the equivalent capacitance value is less than a first preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is air, when the equivalent capacitance value is greater than or equal to a second preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is water, and when the equivalent capacitance value is greater than or equal to the first preset threshold and less than the second preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is ice. Figure 2 、 Figure 3 The control method of the electric heater described above can be used for equivalent capacitance detection, and the control method of the electric heater described above can be used for equivalent capacitance detection. Figure 4 The control method of the electric heater described above can be used for equivalent capacitance detection, and the control method of the electric heater described above can be used for equivalent capacitance detection. Figure 4The electric detection is the electric capacity between the two electric heating devices 400 and the equivalent electric capacity sum between the air conditioner outdoor unit chassis and the ground. When the chassis has no water and no ice, the medium between the electric heating device 400 and the outdoor unit chassis is air, and the detected electric heating capacitor is small at this time; when the chassis has water, the medium between the electric heating device 400 and the outdoor unit chassis is water, and the detected electric heating capacitor is large at this time. When the chassis has ice, the medium between the electric heating device 400 and the outdoor unit chassis is ice, and the detected electric heating capacitor is between air and water, that is, when the equivalent capacitor value is less than the first preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is air, when the equivalent capacitor value is greater than or equal to the second preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is water, and when the equivalent capacitor value is greater than or equal to the first preset threshold and less than the second preset threshold, the medium between the electric heating device 400 and the air conditioner outdoor unit chassis is ice.

[0084] Please refer to Figure 9 The present application provides another preferred embodiment, in which:

[0085] In the electric heating device 400 of the air conditioner outdoor unit chassis, a resistance detection circuit can be added, the temperature of the electric heating device 400 is judged by the thermal resistance method, and the icing state of the electric heating device 400 is judged by the temperature change rate of the electric heating device 400. That is, the temperature change rate of the electric heating device 400 when placed in ice is less than the temperature change rate of the electric heating device 400 when placed in water, and the temperature change rate of the electric heating device 400 when placed in water is less than the temperature change rate of the electric heating device 400 when placed in air.

[0086] Please refer to Figure 10 The present application provides another preferred embodiment, in which:

[0087] The resistance detection circuit can be replaced by voltage detection and current detection, and the resistance of the electric heating can be calculated by using Ohm's law R=U / I. Similarly, the icing state of the electric heating device 400 is judged by the thermal resistance method. That is, the temperature change rate of the electric heating device 400 when placed in ice is less than the temperature change rate of the electric heating device 400 when placed in water, and the temperature change rate of the electric heating device 400 when placed in water is less than the temperature change rate of the electric heating device 400 when placed in air. The voltage value can be obtained by other non-detection methods, such as directly using the local nominal power voltage value, without actual detection.

[0088] In a preferred embodiment, the present application also provides an electronic device, comprising:

[0089] The computer device can be a server, a terminal, or any other electronic device with necessary computing and / or processing capability. In one embodiment, the computer device can include a processor, a memory, a network interface, a communication interface, and the like connected by a system bus. The processor of the computer device can be configured to provide necessary computing, processing, and / or control capability. The memory of the computer device can include a non-volatile storage medium and an internal memory. The non-volatile storage medium can store an operating system, a computer program, and the like therein or thereon. The internal memory can provide an environment for running the operating system and the computer program in the non-volatile storage medium. The network interface and the communication interface of the computer device can be configured to connect and communicate with external devices through a network. The computer program, when executed by the processor, performs the steps of the method of the present application.

[0090] The present application can be implemented as a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, causes the steps of the method of the embodiments of the present application to be performed. In one embodiment, the computer program is distributed on a plurality of computer devices or processors coupled by a network, such that the computer program is stored, accessed, and executed by one or more computer devices or processors in a distributed manner. A single method step / operation, or two or more method steps / operations, can be performed by a single computer device or processor, or by two or more computer devices or processors. One or more method steps / operations can be performed by one or more computer devices or processors, and one or more other method steps / operations can be performed by one or more other computer devices or processors. One or more computer devices or processors can perform a single method step / operation, or perform two or more method steps / operations.

[0091] As will be appreciated by one of ordinary skill in the art, the steps of the methods of the present application can be directed to relevant hardware, such as computer devices or processors, by way of computer program instructions. The computer program instructions can be stored in any non-transitory computer-readable storage medium, which, when executed, cause the steps of the present application to be performed. Depending on the circumstances, any reference to a memory, storage, database, or other medium can include non-volatile and / or volatile memory. Examples of non-volatile memory include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, magnetic tapes, floppy disks, optical data storage devices, and the like. Examples of volatile memory include random access memory (RAM), external cache memory, and the like.

[0092] The technical features described above can be combined arbitrarily. Although all possible combinations of the technical features are not described, any combination of the technical features should be considered to be covered by the present specification, as long as the combination does not result in a contradiction.

[0093] The specific embodiments of the present application described above are for purposes of illustration only and do not limit the scope of the present application. Various other changes and modifications of the present application, which are obvious to those skilled in the art, are considered to be within the scope of the present application as defined by the following claims.

Claims

1. A control method of an electric heating system, characterized by, The method comprises: S100, starting a detection signal generation module to generate a capacitance detection signal; S200, a capacitance signal acquisition module processes the capacitance detection signal into a voltage signal; S300, a control module receives the voltage signal and analyzes to obtain voltage data, and judges the environmental medium state of the electric heating device according to the voltage data and outputs a corresponding control signal; S400, the electric heating device executes a corresponding control command according to the control signal; The control module calculates the equivalent capacitance value of the environmental medium where the electric heating device is located according to the voltage data, and judges whether the equivalent capacitance value is greater than or equal to a first preset threshold value, if yes, judges whether the equivalent capacitance value is greater than or equal to a second preset threshold value, if no, judges that the electric heating device is placed in ice, and outputs a control signal about controlling the electric heating device to be turned on; If the equivalent capacitance value is less than the first preset threshold value, it is judged that the electric heating device is placed in air, and a control signal about controlling the electric heating device to be turned off is outputted; If the equivalent capacitance value is greater than or equal to the second preset threshold value, it is judged that the electric heating device is placed in water, and a control signal about controlling the electric heating device to maintain the working state unchanged is outputted.

2. The control method of the electric heating system according to claim 1, characterized in that, The S200 comprises: The capacitance detection signal generated by the detection signal generation module is coupled by the first capacitor and the second capacitor, and is inputted from the capacitance detection signal output end to the capacitance detection signal input end, and the capacitance signal acquisition module processes the capacitance detection signal into a voltage signal.

3. An electric heating system characterized by, The control method of the electric heating system according to any one of claims 1-2 comprises: A detection signal generation module, the detection signal generation module is used for generating a capacitance detection signal; A capacitance signal acquisition module, electrically connected with the detection signal generation module, used for processing the capacitance detection signal into a voltage signal; A control module, electrically connected with the capacitance signal acquisition module, used for receiving the voltage signal and analyzing to obtain voltage data, judging the environmental medium state of the electric heating device according to the voltage data and outputting a corresponding control signal; An electric heating device, electrically connected with the control module, used for executing a corresponding control command according to the control signal.

4. The electric heating system of claim 3, wherein, The detection signal generation module comprises: A detection signal generation circuit, the detection signal generation circuit comprises: a capacitance detection signal generation end, a first capacitor and a capacitance detection signal output end, the capacitance detection signal generation end is connected with one end of the first capacitor, and the other end of the first capacitor is connected with the capacitance detection signal output end.

5. The electric heating system of claim 4, wherein, The capacitance signal acquisition module comprises: A capacitance signal detection circuit, the capacitance signal detection circuit comprises: a capacitance detection signal input end, a second capacitor, a second diode and a voltage signal detection end, the capacitance detection signal input end is connected with one end of the second capacitor, the other end of the second capacitor is connected with the anode of the second diode, and the cathode of the second diode is connected with the voltage signal detection end.

6. The electric heating system of claim 5, wherein, The control module and the external power supply are connected for outputting a corresponding control signal to control the on-off of the external power supply. The electric heating device comprises a first power supply terminal and a second power supply terminal, which are connected with the external power supply for supplying power to the electric heating device. The detection signal output end and the detection signal input end are respectively connected with the first power supply terminal and / or the second power supply terminal, or the electric heating device can be provided as two, and the detection signal output end and the detection signal input end are respectively connected with the first power supply terminal or the second power supply terminal of the two electric heating devices.

7. An electronic device, comprising: Comprise: a memory; and a processor, the memory has computer readable instructions stored thereon, the computer readable instructions are executed by the processor to realize the control method of the electric heating system according to any one of claims 1-2.

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