Power regulation method, line regulation device and power regulation system

Abstract

The invention discloses a power regulation method, a line regulation device and a power regulation system. The method comprises the following steps: detecting the cross sectional area of a line in a target area; determining the maximum load power according to the cross sectional area of the line in the target area and the corresponding relation between the preset cross sectional area and the open-circuit current; the current power of the heating device and the current total power corresponding to the at least one electric device are obtained; determining target adjusting power according to the maximum load power, the current power and the current total power; and determining the target number of the heating parts according to the target adjusting power, so that the heating device starts the target heating parts corresponding to the target number to adjust the power. On one hand, the maximum load power can be determined according to the characteristics of the line, and the accuracy of determining the maximum load power is improved. And on the other hand, the flexibility of power adjustment of the heating device is improved, the situation that a user needs to manually adjust the power of the heating device many times is avoided, and the user experience is improved.

Description

Technical Field

[0001] The present application relates to the technology of intelligent appliances, and in particular, to a power adjustment method, a circuit adjustment device, and a power adjustment system. Background Art

[0002] With the improvement of people's living standards, heating devices (such as water heaters) are more and more widely used. To meet the needs of users for a large amount of water and rapid water use, the power of heating devices is constantly increasing. However, the household circuit will also carry other electrical devices while carrying the heating device, such as washing machines, bathroom heaters, etc. When multiple devices including the heating device work simultaneously, the air switch may trip due to excessive power.

[0003] Currently, the power of the heating device during use is mainly reduced manually to avoid the air switch tripping. For example, when the heating device has two heating tubes, only one of them is enabled.

[0004] However, manually reducing the power of the heating device during use will cause the heating efficiency of the heating device to decrease, and the heating speed will also decrease accordingly. When there is no other electrical appliance using power, if the user expects to increase the heating speed of the heating device, the user needs to make a secondary adjustment to the power of the heating device during use, and the process is relatively cumbersome, which affects the user experience. Summary of the Invention

[0005] The present application provides a power adjustment method, a circuit adjustment device, and a power adjustment system to solve the problem that in the prior art, when there is no other electrical appliance using power, if the user expects to increase the heating speed of the heating device, the user needs to make a secondary adjustment to the power of the heating device during use, and the process is relatively cumbersome, which affects the user experience.

[0006] In a first aspect, the present application provides a power adjustment method, and the method includes:

[0007] Detect the cross-sectional area of the line in the target area; wherein, the target area includes a heating device and at least one electrical device;

[0008] Determine the maximum load power corresponding to the target area according to the cross-sectional area of the line in the target area and the corresponding relationship between the preset cross-sectional area and the breaking current;

[0009] Obtain the current power of the heating device and the current total power corresponding to the at least one electrical device;

[0010] Determine the target adjustment power according to the maximum load power, the current power of the heating device, and the current total power corresponding to the at least one electrical device;

[0011] Determine the target number of heating components of the heating device according to the target adjusted power, and send a heating component activation instruction and the target number to the heating device, so that after receiving the activation instruction, the heating device activates the target heating components corresponding to the target number to adjust the power of the heating device.

[0012] In a second aspect, the present application further provides a line adjustment device, which includes a control module and a line adjustment module; wherein, the control module is connected to the line adjustment module;

[0013] The control module is configured to execute the power adjustment method as described in the first aspect of the present application;

[0014] The line adjustment module is configured to disconnect the power supply of the target area when the line current in the target area is greater than or equal to the open circuit current.

[0015] In a third aspect, the present application further provides a power adjustment system, which includes a heating device, at least one electrical device, and the line adjustment device as described in the second aspect of the present application; wherein, the line adjustment device is connected to both the heating device and the at least one electrical device;

[0016] The heating device is configured to activate the target heating components corresponding to the target number after receiving the heating component activation instruction and the target number.

[0017] The solution of this application detects the cross-sectional area of the circuit within the target area; wherein, the target area includes a heating device and at least one electrical device; according to the cross-sectional area of the circuit in the target area and the corresponding relationship between the preset cross-sectional area and the open-circuit current, the maximum load power corresponding to the target area is determined; the current power of the heating device and the current total power corresponding to at least one electrical device are obtained; according to the maximum load power, the current power of the heating device and the current total power corresponding to at least one electrical device, the target adjustment power is determined; according to the target adjustment power, the target number of heating components of the heating device is determined, and an instruction to turn on the heating components and the target number are sent to the heating device, so that after receiving the turn-on instruction, the heating device turns on the target heating components corresponding to the target number to adjust the power of the heating device. That is, on the one hand, according to the cross-sectional area of the circuit in the target area, the maximum load power of the target area where the heating device and at least one electrical device are located is determined, and the maximum load power can be determined according to the characteristics of the circuit, improving the accuracy of determining the maximum load power. On the other hand, according to the maximum load power, the current power of the heating device and the current total power of the electrical device, the target adjustment power is determined, and according to the target adjustment power, the target number of heating components of the heating device is determined, so that the power of the heating device can be changed according to the power of the electrical device, improving the flexibility of power adjustment of the heating device, avoiding the situation where the user needs to manually adjust the power of the heating device multiple times, and thus improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of this application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic flowchart of a power adjustment method provided by this application;

[0020] Figure 2 is another schematic flowchart of a power adjustment method provided by this application;

[0021] Figure 3 is a schematic structural diagram of a circuit adjustment device provided by this application;

[0022] Figure 4 is a schematic structural diagram of a power adjustment system provided by this application;

[0023] Figure 5 is a schematic diagram of an exemplary application scenario of a power adjustment method provided by this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. In addition, it should be noted that for the convenience of description, only the parts related to the present application rather than all the structures are shown in the drawings.

[0025] Figure 1 is a schematic flowchart of a power adjustment method provided by the present application, and this method can be executed by the control module of the line adjustment device provided by the present application. Exemplarily, the line adjustment device can be an air switch. Refer to Figure 1 , and the method can specifically include the following steps:

[0026] Step 101, detect the cross-sectional area of the line in the target area.

[0027] Among them, the target area includes a heating device and at least one electrical device.

[0028] Specifically, the target area refers to the area where the heating device and at least one electrical device are located. In the household power supply line, this area is supplied with power uniformly. Exemplarily, the target area can be a bathroom. The heating device is a device with a heating function. Exemplarily, the heating device can be a water heater. The electrical device is a device that is jointly powered with the heating device in the target area, such as a ceiling lamp, a washing machine, etc. in the bathroom power supply line. The line in the target area is the line connecting the heating device and at least one electrical device. The cross-sectional area of the line in the target area can be the cross-sectional area obtained by obtaining the user input, or can be obtained after controlling a sensor capable of detecting the cross-sectional area of the line to detect.

[0029] Exemplarily, by controlling a sensor capable of detecting the cross-sectional area of the line to detect the cross-sectional area of the line in the target area, it is obtained that the cross-sectional area of the line in the target area is 4 square millimeters.

[0030] Optionally, step 101 can be implemented through steps 1011 to 1013.

[0031] Step 1011, send a detection signal to the heating device and receive the return signal returned by the heating device, and determine the signal transmission duration.

[0032] Specifically, the detection signal is a signal for detecting the wire diameter. After receiving this signal, the heating device returns a return signal corresponding to the detection signal, and determines the duration used in the process from the detection signal being sent to the return signal being received. The duration of this process is twice the signal transmission duration.

[0033] Exemplarily, if the time taken to send a detection signal to the heating device and receive the returned signal from the heating device is 2T, then the signal transmission time is T.

[0034] Step 1012, obtain the first relative permittivity of the line in the target area, and determine the transmission line length according to the first relative permittivity and the signal transmission time.

[0035] Specifically, since the propagation of an electrical signal is a form of electromagnetic wave propagation, the propagation speed of the electrical signal is determined by the propagation speed of the electromagnetic wave. The propagation speed of the electromagnetic wave depends on the relative permittivity of the transmission medium, and the relative permittivity of the medium is the ratio of the propagation speed of the electromagnetic wave in the medium to the propagation speed of the electromagnetic wave in a vacuum. Therefore, the transmission speed of the electrical signal in the line in the target area can be obtained based on the first relative permittivity of the line in the target area. The first relative permittivity of the line in the target area can be obtained according to the line attributes or detected by a detection device. Determine the transmission speed of the electrical signal in the line in the target area based on the first relative permittivity of the line in the target area, and the transmission line length can be determined according to the transmission speed and the signal transmission time.

[0036] Exemplarily, determining the transmission line length according to the first relative permittivity and the signal transmission time can be achieved by Formula 1.

[0037]

[0038] Wherein, L is the transmission line length, ε r1 is the first relative permittivity, T1 is the signal transmission time, and c is the speed of light, that is, the propagation speed of the electromagnetic wave in a vacuum.

[0039] Optionally, obtaining the first relative permittivity of the line in the target area can be achieved through Steps 21 to 23.

[0040] Step 21, obtain the incident voltage of the heating device, the reflected voltage, and the second relative permittivity of the line in the heating device.

[0041] Specifically, the incident voltage of the heating device, the reflected voltage, and the second relative permittivity of the line in the heating device can be obtained according to the self-attributes of the heating device or detected by a detection device (such as a sensor), and this application does not make any limitations in this regard.

[0042] Exemplarily, the incident voltage of the heating device is obtained by modulation of the carrier module, and the reflected voltage of the heating device is measured by the analog receiving port of the carrier module. After measuring the incident voltage and the reflected voltage of the heating device, the control device of this embodiment obtains the incident voltage and the reflected voltage of the heating device. The impedance of the circuit in the heating device is a parameter determined during the production process of the heating device. The second relative permittivity of the circuit in the heating device can be obtained based on the known impedance of the circuit in the heating device. The second relative permittivity can be obtained from the impedance through Formula 2.

[0043]

[0044] Among them, Z2 is the impedance of the circuit in the heating device, and ε r2 is the second relative permittivity of the circuit in the heating device.

[0045] Step 22: Determine the reflection coefficient according to the incident voltage and the reflected voltage of the heating device.

[0046] Exemplarily, determining the reflection coefficient according to the incident voltage and the reflected voltage of the heating device can be achieved through Formula 3.

[0047] V f =Γ*V i Formula 3

[0048] Among them, V f represents the reflected voltage, Γ represents the reflection coefficient, and V i represents the incident voltage.

[0049] Step 23: Determine the first relative permittivity of the circuit in the target area according to the reflection coefficient and the second relative permittivity.

[0050] Specifically, for the circuit in the target area connected to the circuit in the heating device, due to the different impedances, there is an impedance discontinuity point in the transmission structure, that is, the signal is reflected at the connection between the circuit in the target area and the circuit in the heating device. Therefore, the first relative permittivity of the circuit in the target area can be determined according to the reflection coefficient and the second relative permittivity.

[0051] Exemplarily, determining the first relative permittivity of the circuit in the target area according to the reflection coefficient and the second relative permittivity can be achieved through Formula 4.

[0052]

[0053] Among them, Γ represents the reflection coefficient, ε r2 is the second relative permittivity of the circuit in the heating device, and ε r1 is the first relative permittivity of the circuit in the target area.

[0054] It is also possible to determine the impedance of the line in the target area based on the reflection coefficient and the impedance of the line in the heating device, and then determine the first relative dielectric constant of the line in the target area according to the impedance of the line in the target area. Determining the impedance of the line in the target area based on the reflection coefficient and the impedance of the line in the heating device can be achieved according to Formula 5.

[0055] Γ=(Z2 - Z1) / (Z2 + Z1) Formula 5

[0056] Where Γ represents the reflection coefficient, Z2 is the impedance of the line in the heating device, and Z1 is the impedance of the line in the target area. Determining the first relative dielectric constant of the line in the target area according to the impedance of the line in the target area can be achieved according to Formula 6.

[0057]

[0058] Where Z1 is the impedance of the line in the target area, and ε r1 is the first relative dielectric constant of the line in the target area.

[0059] Step 1013: Obtain the resistance value of the line in the target area, and determine the cross-sectional area of the line according to the resistance value of the line and the transmission line length.

[0060] Specifically, the resistance value of the line in the target area can be obtained according to the line attributes or detected by a detection device. Determine the cross-sectional area of the line according to the resistance value of the line in the target area, the resistivity of the household line, and the transmission line length.

[0061] Exemplarily, determining the cross-sectional area of the line according to the resistance value of the line in the target area, the resistivity of the household line, and the transmission line length can be obtained according to Formula 7.

[0062]

[0063] Where A is the cross-sectional area of the line, ρ is the resistivity of the household line, L is the transmission line length, and R is the resistance value of the line in the target area.

[0064] When it is necessary to determine the diameter of the line, the line diameter can be determined according to Formula 8.

[0065]

[0066] Where A is the cross-sectional area of the line and d is the diameter of the line.

[0067] Optionally, obtaining the resistance value of the line in the target area can be achieved through Steps 31 to 32.

[0068] Step 31, obtain the voltage at the heating device, the resistance value inside the heating device, and the voltage in the target area.

[0069] Specifically, the voltage at the heating device and the voltage in the target area can be obtained by a voltage detection device, such as controlling a voltmeter to measure the voltage. The resistance value inside the heating device can be obtained according to the attributes of the heating device or detected by a detection device. This application does not make any limitations in this regard.

[0070] Step 32, determine the resistance value of the line in the target area according to the voltage at the heating device, the resistance value inside the heating device, and the voltage in the target area.

[0071] Specifically, after determining the voltage at the heating device, the resistance value inside the heating device, and the voltage in the target area, determine the line current according to the voltage at the heating device and the resistance value inside the heating device, determine the voltage drop of the transmission line according to the voltage at the heating device and the voltage in the target area, and then the resistance value of the line in the target area can be obtained according to the line current and the voltage drop of the transmission line.

[0072] Exemplarily, the voltage at the heating device is 215 V (volt), the resistance value inside the heating device after the heating device is turned on is 16.13 Ω (ohm), the voltage in the target area is 220 V. From this, the line current can be obtained as 13.26 A (ampere), and the voltage drop of the transmission line is 5 V. According to the line current and the voltage drop of the transmission line, the resistance value of the line in the target area can be obtained as 0.377 Ω.

[0073] Optionally, the voltage at the heating device includes the voltage corresponding to the first number of heating components and the voltage corresponding to the second number of heating components, the resistance value inside the heating device includes the resistance value corresponding to the first number of heating components and the resistance value corresponding to the second number of heating components, and step 32 can be implemented through steps 321 to 323.

[0074] Step 321, determine the first voltage difference according to the voltage in the target area and the voltage corresponding to the first number of heating components, and determine the first line resistance according to the first voltage difference and the resistance value corresponding to the first number of heating components.

[0075] Specifically, the heating component is the component used for heating within the heating device. Exemplarily, when the heating device is a water heater, the heating component is a heating pipe. The voltage corresponding to the first quantity of heating components is the voltage at the heating device when the number of turned-on heating components is the first quantity. Based on the voltage within the target area and the voltage corresponding to the first quantity of heating components, the voltage drop of the circuit when the number of turned-on heating components is the first quantity can be obtained, which is the first voltage difference. Based on the voltage corresponding to the first quantity of heating components and the resistance value corresponding to the first quantity of heating components, the circuit current corresponding to the first quantity of heating components is determined. Then, based on the circuit current corresponding to the first quantity of heating components and the first voltage difference, the first circuit resistance value can be obtained.

[0076] Exemplarily, the first quantity is 1. That is, when the number of turned-on heating components is 1, the voltage at the heating device is 215V, the resistance value within the heating device is 16.13Ω, and the voltage within the target area is 220V. Thus, the circuit current corresponding to the first quantity of heating components is 13.26A, and the first voltage difference is 5V. Based on the first voltage difference and the resistance value corresponding to the first quantity of heating components, the first circuit resistance value is determined to be 0.377Ω.

[0077] Step 322: Based on the voltage within the target area and the voltage corresponding to the second quantity of heating components, determine the second voltage difference, and based on the second voltage difference and the resistance value corresponding to the second quantity of heating components, determine the second circuit resistance value.

[0078] Specifically, the voltage corresponding to the second quantity of heating components is the voltage at the heating device when the number of turned-on heating components is the second quantity. Based on the voltage within the target area and the voltage corresponding to the second quantity of heating components, the voltage drop of the circuit when the number of turned-on heating components is the second quantity can be obtained, which is the second voltage difference. Based on the voltage corresponding to the second quantity of heating components and the resistance value corresponding to the second quantity of heating components, the circuit current corresponding to the second quantity of heating components is determined. Then, based on the circuit current corresponding to the second quantity of heating components and the second voltage difference, the second circuit resistance value can be obtained.

[0079] Exemplarily, the second quantity is 2. That is, when the number of turned-on heating components is 2, the voltage at the heating device is 212V, the resistance value within the heating device is 9.68Ω, and the voltage within the target area is 220V. Thus, the circuit current corresponding to the second quantity of heating components is 21.9A, and the second voltage difference is 8V. Based on the second voltage difference and the resistance value corresponding to the second quantity of heating components, the second circuit resistance value is determined to be 0.365Ω.

[0080] Step 323: Determine the statistical parameters of the first circuit resistance value and the second circuit resistance value as the resistance value of the circuit within the target area.

[0081] Specifically, the statistical parameters of the first line resistance and the second line resistance are determined as the resistance of the line within the target area. That is, the average value or standard deviation of the first line resistance and the second line resistance can be determined as the resistance of the line within the target area.

[0082] Exemplarily, the first line resistance is 0.377Ω, and the second line resistance is 0.365Ω. The average value of the first line resistance and the second line resistance is taken as the resistance of the line within the target area. That is, the resistance of the line within the target area is 0.371Ω.

[0083] Step 102: Determine the maximum load power corresponding to the target area according to the cross-sectional area of the line in the target area and the corresponding relationship between the preset cross-sectional area and the open-circuit current.

[0084] Specifically, the corresponding relationship between the preset cross-sectional area and the open-circuit current is the corresponding relationship between the preset cross-sectional area of the line and the current at which the line adjustment device (such as an air switch) disconnects. The open-circuit current of the air switch can be determined through the air switch tripping curve of the air switch. Since the air switch tripping curve is a current range, the determined open-circuit current can be a maximum value or a range. This application does not make any limitations in this regard. After obtaining the cross-sectional area of the line in the target area, according to the cross-sectional area of the line in the target area and the corresponding relationship between the preset cross-sectional area and the open-circuit current, the maximum current corresponding to this line cross-sectional area can be determined. According to this maximum current and the household voltage of 220V, the maximum load power corresponding to the target area can be determined.

[0085] Exemplarily, the corresponding relationship between the preset cross-sectional area and the open-circuit current is that when the cross-sectional area is 1.5mm 2 (square millimeters), the open-circuit current is 15A; when the cross-sectional area is 2.5mm 2 , the open-circuit current is 20 to 25A; when the cross-sectional area is 4mm 2 , the open-circuit current is 30 to 35A; when the cross-sectional area is 6mm 2 , the open-circuit current is 40 to 50A.

[0086] Step 103: Obtain the current power of the heating device and the current total power corresponding to at least one electrical device.

[0087] Specifically, the current power of the heating device is the power of the heating device at the current moment, and the current total power corresponding to at least one electrical device is the total power of at least one electrical device at the current moment. Obtaining the current power of the heating device and the current total power corresponding to at least one electrical device can be achieved by controlling the power detection device to detect the power of the heating device and each electrical device.

[0088] Step 104: Determine the target adjustment power according to the maximum load power, the current power of the heating device, and the current total power corresponding to at least one electrical device.

[0089] Specifically, the target adjustment power is the power that the heating device can adjust, such as the power that the heating device can increase. The remaining power space for the target area power usage can be obtained based on the maximum load power, the current power of the heating device, and the current total power corresponding to at least one electrical device, and this remaining power space is the target adjustment power.

[0090] Exemplarily, if the maximum load power is 8 kilowatts (kW), the current power of the heating device is 3 kW, and the current total power corresponding to at least one electrical device is 2 kW, then the target adjustment power is 3 kW.

[0091] Step 105: Determine the target number of heating components of the heating device according to the target adjustment power, and send a heating component activation instruction and the target number to the heating device, so that the heating device activates the target heating components corresponding to the target number after receiving the activation instruction to adjust the power of the heating device.

[0092] Specifically, determine the target number of heating components of the heating device according to the target adjustment power, so that after the heating device activates the target heating components corresponding to the target number, it can maximize the efficiency of the heating device while avoiding open circuits. Exemplarily, when the target adjustment power is positive, after the heating device activates the target heating components corresponding to the target number, it can improve the heating efficiency of the heating device, and at the same time, the increased power of the water heater will not exceed the target adjustment power to avoid open circuits. When the target adjustment power is negative, after the heating device activates the target heating components corresponding to the target number, it can reduce the power of the heating device to avoid open circuits. After determining the target number of heating components of the heating device according to the target adjustment power, send a heating component activation instruction and the target number. The heating component activation instruction is an instruction for controlling the heating device to activate the target number of heating components. After the heating device receives the heating component activation instruction and the target number, it activates the target heating components corresponding to the target number to adjust its own power.

[0093] Optionally, obtain the correspondence between the number of heating components and the power of the heating device, and determine the target number of heating components of the heating device according to the target adjustment power, so that after the heating device activates the target heating components corresponding to the target number, the power of the heating device corresponding to the target number is less than the target power.

[0094] Wherein, the target power is the sum of the target adjustment power and the current power of the heating device.

[0095] Specifically, when the number of heating components turned on by the heating device is different, the power of the heating device is different. For example, the correspondence between the number of heating components and the power of the heating device is that when the water heater turns on 1 heating pipe, the power is 3 Kw, and when the water heater turns on 2 heating pipes, the power is 5 Kw. After obtaining the correspondence between the number of heating components and the power of the heating device, determine the target power of the heating device according to the target adjustment power and the current power of the heating device, that is, the power that should be less than after adjustment. Determine the target number of heating components of the heating device according to the target power of the heating device, so that after the heating device turns on the target heating components corresponding to the target number, the power of the heating device corresponding to the target number is less than the target power.

[0096] Exemplarily, the correspondence between the number of heating components and the power of the heating device is that when the water heater turns on 1 heating pipe, the power is 3 Kw, when the water heater turns on 2 heating pipes, the power is 5 Kw, and when the water heater turns on 3 heating pipes, the power is 7 Kw. The current power of the heating device is 3 kW, and the target adjustment power is 3 kW. Therefore, the target power is determined to be 6 kW, and the target number of heating components of the heating device is obtained as 2.

[0097] The solution of the present application detects the cross-sectional area of the line in the target area; wherein, the target area includes a heating device and at least one electrical device; determine the maximum load power corresponding to the target area according to the cross-sectional area of the line in the target area and the correspondence between the preset cross-sectional area and the break current; obtain the current power of the heating device and the current total power corresponding to at least one electrical device; determine the target adjustment power according to the maximum load power, the current power of the heating device, and the current total power corresponding to at least one electrical device; determine the target number of heating components of the heating device according to the target adjustment power, and send a heating component turning-on instruction and the target number to the heating device, so that the heating device turns on the target heating components corresponding to the target number after receiving the turning-on instruction to adjust the power of the heating device. That is, on the one hand, according to the cross-sectional area of the line in the target area, the maximum load power of the target area where the heating device and at least one electrical device are located is determined, and the maximum load power can be determined according to the characteristics of the line, improving the accuracy of determining the maximum load power. On the other hand, determine the target adjustment power according to the maximum load power, the current power of the heating device, and the current total power of the electrical device, and determine the target number of heating components of the heating device according to the target adjustment power, so that the power of the heating device can be changed according to the power of the electrical device, improving the flexibility of power adjustment of the heating device, avoiding the situation where the user needs to manually adjust the power of the heating device multiple times, and thus improving the user experience.

[0098] Figure 2 is another process schematic diagram of the power adjustment method provided by the present application. In this embodiment Figure 1Based on the illustrated embodiments and various alternative implementations, the steps for determining the target adjustment power are described in detail. As Figure 2 shown, the method may include the following steps:

[0099] Step 201, detect the cross-sectional area of the line in the target area.

[0100] Step 202, determine the maximum load power corresponding to the target area according to the cross-sectional area of the line in the target area and the corresponding relationship between the preset cross-sectional area and the open-circuit current.

[0101] [[ID=ll]]Step 203, obtain the current power of the heating device and the current total power corresponding to at least one electrical device.

[0102] Step 204, determine the sum of the current powers according to the current power of the heating device and the current total power corresponding to at least one electrical device.

[0103] Specifically, add the current power of the heating device and the current total power corresponding to at least one electrical device to obtain the actual load power in the target area at the current moment, which is the sum of the current powers.

[0104] Exemplarily, if the current power of the heating device is 3 kW and the current total power corresponding to at least one electrical device is 2 kW, then the sum of the current powers is 5 kW.

[0105] Step 205, determine the difference between the maximum load power and the sum of the current powers as the target adjustment power.

[0106] Specifically, since the maximum load power is the maximum power before the circuit is open, the power obtained by subtracting the sum of the current powers from the maximum load power is the target adjustment power, that is, the power threshold that the heating device can increase. If the increased power of the heating device is less than the target adjustment power, it can avoid the air switch from tripping and further avoid the circuit from being open.

[0107] Step 206, determine the target number of heating components of the heating device according to the target adjustment power, and send a heating component activation instruction and the target number to the heating device, so that the heating device activates the target heating components corresponding to the target number after receiving the activation instruction to adjust the power of the heating device.

[0108] In the solution of the present application, the sum of the current powers is determined according to the current power of the heating device and the current total power corresponding to at least one electrical device, and the difference between the maximum load power and the sum of the current powers is determined as the target adjustment power, which refines the calculation process of the target adjustment power, obtains the power margin in the target area, and further obtains the target number of heating components of the heating device, further avoiding line protection caused by excessive power of the devices operating on the line and improving the user experience.

[0109] Figure 3 It is a schematic structural diagram of the line adjustment device 30 provided by this application. As Figure 3 shown, the line adjustment device 30 includes a control module 301 and a line adjustment module 302. Among them, the control module 301 is connected to the line adjustment module 302.

[0110] The control module 301 is used to execute the power adjustment method of any embodiment of this application.

[0111] The line adjustment module 302 is used to cut off the power supply of the target area when the line current in the target area is greater than or equal to the open circuit current.

[0112] Specifically, the line adjustment device 30 can be an air switch. The control module 301 of the air switch is used to execute the power adjustment method of any embodiment of this application. The line adjustment module 302 is used to cut off the power supply of the target area when the line current in the target area is greater than or equal to the open circuit current to ensure the safety of electricity use.

[0113] Exemplarily, Figure 5 It is a schematic diagram of an exemplary application scenario of the power adjustment method provided by this application. As Figure 5 shown, after the user distribution box distributes power, the air switch 1 is connected to the bedroom power supply line, the air switch 2 is connected to the kitchen power supply line, and the air switch 3 is connected to the bathroom power supply line. The air switch 3 is the line adjustment device in this embodiment, the bathroom is the target area in this embodiment, the water heater connected to it is the heating device in this embodiment, and the bathroom heater and the washing machine are the electrical devices in this embodiment. The control module of the air switch 3 is used to implement the power adjustment method of any embodiment of this application to adjust the power of the water heater. When the line current in the bathroom is greater than or equal to the open circuit current, the line adjustment module of the air switch 3 cuts off the power supply of the bathroom.

[0114] For the specific working process and the beneficial effects that can be achieved by the line adjustment device and various optional implementation manners in this embodiment, reference can be made to the corresponding processes and beneficial effects in the foregoing method embodiments, which will not be elaborated here.

[0115] Figure 4 It is a schematic structural diagram of the power adjustment system 400 provided by this application. The power adjustment system 400 includes a heating device 401, at least one electrical device 402, and the line adjustment device 30 of any embodiment of this application. Among them, the line adjustment device 30 is connected to both the heating device 401 and at least one electrical device 402.

[0116] The heating device 401 is used to turn on the target heating components corresponding to the target quantity after receiving the heating component turning-on instruction and the target quantity.

[0117] Specifically, after receiving the heating component activation instruction and the target quantity, the heating device 401 activates the target heating components corresponding to the target quantity to adjust its own power.

[0118] Optionally, the heating device 401 is further configured to return the return signal corresponding to the detection signal to the line adjustment device 30 after receiving the detection signal.

[0119] Specifically, after receiving the detection signal, the heating device 401 returns the return signal corresponding to the detection signal to the line adjustment device 30, so that the line adjustment device 30 determines the signal transmission duration for detecting the cross-sectional area of the line in the target area.

[0120] For the specific working processes and the beneficial effects achievable by the power adjustment system and various optional implementation manners in this embodiment, reference may be made to the corresponding processes and beneficial effects in the foregoing method embodiment, which will not be elaborated herein.

[0121] The above specific implementation manners do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A power adjustment method, characterized in that The method includes: Detecting the cross-sectional area of the line within the target area; wherein, the target area includes a heating device and at least one electrical device; Determining the maximum load power corresponding to the target area according to the cross-sectional area of the line in the target area and the corresponding relationship between the preset cross-sectional area and the open-circuit current; Obtaining the current power of the heating device and the current total power corresponding to the at least one electrical device; Determining the target adjustment power according to the maximum load power, the current power of the heating device, and the current total power corresponding to the at least one electrical device; Determining the target number of heating components of the heating device according to the target adjustment power, and sending a heating component activation instruction and the target number to the heating device, so that the heating device activates the target heating components corresponding to the target number after receiving the activation instruction to adjust the power of the heating device.

2. The method according to claim 1, wherein The detecting the cross-sectional area of the line within the target area includes: Sending a detection signal to the heating device and receiving a return signal returned by the heating device to determine the signal transmission duration; Obtaining the first relative permittivity of the line within the target area, and determining the transmission line length according to the first relative permittivity and the signal transmission duration; Obtaining the resistance value of the line within the target area, and determining the cross-sectional area of the line according to the resistance value of the line and the transmission line length.

3. The method according to claim 2, characterized in that The obtaining the first relative permittivity of the line within the target area includes: Obtaining the incident voltage of the heating device, the reflected voltage, and the second relative permittivity of the line within the heating device; Determining the reflection coefficient according to the incident voltage and the reflected voltage of the heating device; Determining the first relative permittivity of the line within the target area according to the reflection coefficient and the second relative permittivity.

4. The method according to claim 2, wherein The obtaining the resistance value of the line within the target area includes: Obtaining the voltage at the heating device, the resistance value within the heating device, and the voltage within the target area; Determining the resistance value of the line within the target area according to the voltage at the heating device, the resistance value within the heating device, and the voltage within the target area.

5. The method according to claim 4, wherein The voltage at the heating device includes the voltage corresponding to the first number of heating components and the voltage corresponding to the second number of heating components. The resistance value within the heating device includes the resistance value corresponding to the first number of heating components and the resistance value corresponding to the second number of heating components. The determining the resistance value of the line within the target area according to the voltage at the heating device, the resistance value within the heating device, and the voltage within the target area includes: Determining a first voltage difference according to the voltage within the target area and the voltage corresponding to the first number of heating components, and determining a first line resistance value according to the first voltage difference and the resistance value corresponding to the first number of heating components; Determining a second voltage difference according to the voltage within the target area and the voltage corresponding to the second number of heating components, and determining a second line resistance value according to the second voltage difference and the resistance value corresponding to the second number of heating components; Determine the statistical parameters of the first line resistance and the second line resistance as the resistance of the line within the target area.

6. The method according to claim 1, characterized in that, The determining of the target adjustment power according to the maximum load power, the current power of the heating device, and the current total power corresponding to the at least one electrical device includes: Determine the sum of the current powers according to the current power of the heating device and the current total power corresponding to the at least one electrical device; Determine the difference between the maximum load power and the sum of the current powers as the target adjustment power.

7. The method according to claim 1, characterized in that, The determining of the target number of heating components of the heating device according to the target adjustment power includes: Obtain the correspondence between the number of heating components and the power of the heating device, and determine the target number of heating components of the heating device according to the target adjustment power, so that after the heating device turns on the target heating components corresponding to the target number, the power of the heating device corresponding to the target number is less than the target power; wherein, the target power is the sum of the target adjustment power and the current power of the heating device.

8. A circuit adjustment device, characterized in that, The line adjustment device includes a control module and a line adjustment module; wherein, the control module is connected to the line adjustment module; The control module is configured to execute the power adjustment method according to any one of claims 1 to 7; The line adjustment module is configured to cut off the power supply of the target area when the line current in the target area is greater than or equal to the open circuit current.

9. A power regulation system, characterized in that, The power adjustment system includes a heating device, at least one electrical device, and the line adjustment device according to claim 8; wherein, the line adjustment device is connected to both the heating device and the at least one electrical device; The heating device is configured to turn on the target heating components corresponding to the target number after receiving the heating component turning-on instruction and the target number.

10. The power adjustment system according to claim 9, wherein, The heating device is further configured to return the return signal corresponding to the detection signal to the line adjustment device after receiving the detection signal.

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