Air conditioner auxiliary heating control method, device, electronic device and readable storage medium

Abstract

The application belongs to the technical field of air conditioners, and discloses an air conditioner auxiliary heating control method and device, an electronic device and a readable storage medium. The air conditioner auxiliary heating control method comprises the following steps: if a zero-crossing signal of an air conditioner is detected, it is determined that a heating wire of the air conditioner is started after a preset starting time delay of the zero-crossing signal to start the heating wire at a zero-crossing point of the zero-crossing signal, and a zero-crossing count value of the zero-crossing signal is determined; whether the zero-crossing point of the zero-crossing signal meets a silicon-controlled rectifier conduction condition is judged according to a control duty cycle of the heating wire in a preset cycle and the zero-crossing count value; if the zero-crossing point of the zero-crossing signal meets the silicon-controlled rectifier conduction condition, the silicon-controlled rectifier is turned on at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire. The application aims to solve the technical problem that the auxiliary heating cost of the air conditioner is high during energy-saving operation due to harmonic interference.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioning, and relates to an air conditioner auxiliary heating control method, device, electronic device and readable storage medium. Background Art

[0002] To improve the heating effect of air conditioners, PTC or heating coils are often installed in them to enhance the heating effect. Currently, there are two methods for controlling electric auxiliary heating in air conditioners. One is that when the switch is closed, the air conditioner's heating module (PTC or heating coil) operates at maximum power. This method maintains constant power but consumes a lot of electricity. The other method samples the zero-crossing signal of the heating module and performs phase angle modulation to adjust the power of the heating module, avoiding the heating module always running at maximum power and causing high power consumption. However, when performing phase angle modulation, the current waveform will be distorted, resulting in harmonic interference. Therefore, a current spike absorption circuit is generally installed to eliminate harmonic interference, but this increases circuit cost.

[0003] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0004] The main purpose of this application is to provide an air conditioner auxiliary heating control method, device, electronic device and readable storage medium, aiming to solve the technical problem of high auxiliary heating cost of the air conditioner during energy-saving operation due to harmonic interference.

[0005] To achieve the above objectives, the present application provides an air conditioner auxiliary heating control method, the air conditioner auxiliary heating control method comprising:

[0006] If a zero-crossing signal of the air conditioner is detected, determining to delay starting the heating wire of the air conditioner after a preset start time of the zero-crossing signal so as to start the heating wire at the zero-crossing point of the zero-crossing signal, and determining a zero-crossing count value of the zero-crossing signal;

[0007] According to the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value, it is determined whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition;

[0008] If the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition, the thyristor is turned on at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire.

[0009] To achieve the above-mentioned purpose, the present application provides an air conditioner auxiliary heating control device, the air conditioner auxiliary heating control device comprising:

[0010] a detection module, configured to, upon detecting a zero-crossing signal of the air conditioner, determine to delay starting the heating wire of the air conditioner after a preset start time of the zero-crossing signal so as to start the heating wire at a zero-crossing point of the zero-crossing signal, and determine a zero-crossing count value of the zero-crossing signal;

[0011] A judgment module, configured to judge whether the zero-crossing point of the zero-crossing signal satisfies a thyristor conduction condition according to a control duty cycle of the heating wire in a preset cycle and the zero-crossing count value;

[0012] The regulating module is used to turn on the thyristor at the zero-crossing point of the zero-crossing signal to regulate the operating power of the heating wire if the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition.

[0013] The present application also provides an electronic device, which includes: a memory, a processor, and a program of the air conditioner auxiliary heating control method stored in the memory and runnable on the processor. When the program of the air conditioner auxiliary heating control method is executed by the processor, the steps of the air conditioner auxiliary heating control method as described above can be implemented.

[0014] The present application also provides a readable storage medium, on which is stored a program for implementing the air conditioner auxiliary heating control method. When the program of the air conditioner auxiliary heating control method is executed by a processor, the steps of the air conditioner auxiliary heating control method as described above are implemented.

[0015] The present application also provides a computer program product, comprising a computer program, which implements the steps of the above-mentioned air conditioner auxiliary heating control method when executed by a processor.

[0016] The present application provides an air conditioner auxiliary heating control method, device, electronic device and readable storage medium. The air conditioner auxiliary heating control method includes: if a zero-crossing signal of the air conditioner is detected, determining to delay starting the heating wire of the air conditioner after a preset start time of the zero-crossing signal to turn on the heating wire at the zero-crossing point of the zero-crossing signal, and determining the zero-crossing count value of the zero-crossing signal; judging whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition based on the control duty cycle of the heating wire in a preset cycle period and the zero-crossing count value; if the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition, turning on the thyristor at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire.

[0017] Generally, the heating wire will be turned on when a zero-crossing signal is detected, but the zero-crossing signal is the signal during the period when the AC signal amplitude is zero (positive-negative conversion), so turning on the heating wire when a zero-crossing signal is detected does not necessarily mean turning on the heating wire at the zero-crossing point. Since the heating wire is not necessarily turned on at the zero crossing point, current distortion is likely to occur, resulting in harmonic interference. Therefore, when the zero crossing signal is detected, the present application does not immediately turn on the heating wire of the air conditioner, but delays the turning on of the heating wire at the preset start time of the zero crossing signal, so that the heating wire is turned on at the zero crossing point to avoid harmonic interference. Therefore, there is no need to set up a current spike absorption circuit in the air conditioner to absorb current spikes to eliminate harmonic interference, thereby reducing the circuit cost of the air conditioner. Furthermore, it is judged whether the thyristor is turned on at the zero crossing point, and the thyristor adjusts the operating power of the heating wire, thereby avoiding the heating wire always running at a certain power, resulting in poor heating effect or high power consumption. Therefore, the present application controls the heating wire to be turned on at the zero crossing point, and adjusts the power of the heating wire by judging whether the thyristor is turned on at the zero crossing point, thereby achieving effective adjustment of the power of the heating wire of the air conditioner without increasing the circuit cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a flow chart of the first embodiment of the air conditioner auxiliary heating control method of the present application;

[0021] Figure 2 This is a flow chart of a second embodiment of the air conditioner auxiliary heating control method of the present application;

[0022] Figure 3 A schematic diagram of a preset signal table for the auxiliary heating control method of the air conditioner of this application;

[0023] Figure 4 This is a schematic diagram of the zero-crossing detection circuit and thyristor control circuit of the air conditioner auxiliary heating control method of this application;

[0024] Figure 5 This is a schematic diagram of an embodiment of the air conditioner auxiliary heating control method of the present application;

[0025] Figure 6Schematic diagram of the equipment structure of the hardware operating environment involved in the air conditioner auxiliary heating control method in the embodiment of the present application.

[0026] Explanation of Figure Numbers

[0027] Label name Label name R1-R12 resistance L1-L2 inductance C1-C8 capacitance D1-D7 diode U1 Thyristor optocoupler U2 Power chip U3 Microcontroller unit TR1 Thyristor Q1 triode FUSE2 fuse ZNR1 Varistor 100 Rectifier circuit 200 Thyristor control circuit 300 Zero-crossing detection circuit

[0028] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] To make the above-mentioned purposes, features, and advantages of the present application more clearly understood, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of this application.

[0030] Example 1

[0031] Reference Figure 1 The present invention provides an air conditioner auxiliary heating control method. In a first embodiment of the air conditioner auxiliary heating control method, the air conditioner auxiliary heating control method includes:

[0032] Step S10, if a zero-crossing signal of the air conditioner is detected, determining to start the heating wire of the air conditioner after a preset start time of the zero-crossing signal so as to start the heating wire at the zero-crossing point of the zero-crossing signal, and determining a zero-crossing count value of the zero-crossing signal;

[0033] In an embodiment of the present application, it should be noted that the air conditioner is configured to detect a zero-crossing signal of the air conditioner, and whether a zero-crossing signal is generated can be detected by the zero-crossing detection circuit of the air conditioner. The preset startup delay is set based on actual conditions. For example, by observing the waveform of the zero-crossing signal, it can be determined that timing starts when the zero-crossing signal is detected and stops when the zero-crossing point of the zero-crossing signal is reached. The period between the moment of starting timing when the zero-crossing signal is detected and the moment of stopping timing when the zero-crossing point is reached is used as the preset startup delay. The zero-crossing count value of the zero-crossing signal is the number of zero-crossing signals detected, wherein the zero-crossing count value does not exceed a preset technical threshold.

[0034] In a feasible embodiment, before step S10, the air conditioner auxiliary heating control method further includes:

[0035] Step S11, in response to an air conditioner on command, determining an initial duty cycle of the heating wire based on an initial temperature difference between an indoor temperature when the air conditioner is on and an air conditioner set temperature set by the air conditioner;

[0036] Step S12: determining the initial power of the heating wire according to the initial duty cycle to control the heating wire to operate at the initial power at the zero-crossing point when the air conditioner is turned on.

[0037] In the embodiments of the present application, it should be noted that when the air conditioner is turned on, the initial power of the heating wire in the air conditioner needs to be determined. When the air conditioner is turned on, the initial power of the heating wire at the time of the air conditioner turning on can be determined based on the initial temperature difference between the indoor temperature at the time of the air conditioner turning on and the air conditioner set temperature. The initial temperature difference is the difference between the indoor temperature at the time of the air conditioner turning on and the air conditioner set temperature. The initial duty cycle corresponds to the initial temperature difference. The initial power of the heating wire can be determined based on the initial duty cycle, and then the heating wire is controlled to operate at the initial power at the zero crossing point when the air conditioner is turned on. Therefore, if there is no zero crossing signal to turn on the thyristor after the air conditioner is turned on, then when the zero crossing signal turns on the heating wire, the operating power of the heating wire is the initial power.

[0038] The embodiment of the present application determines the initial duty cycle and then the initial power of the heating wire through the indoor temperature at the time of startup and the air conditioner set temperature, so that the heating wire takes into account the indoor temperature and the air conditioner set temperature during operation, and associates the initial operating power of the heating wire with the indoor temperature, controlling the heating wire to operate at an appropriate power rather than directly at the maximum power, thereby effectively reducing the power consumption of the air conditioner.

[0039] In a feasible embodiment, the step of determining the zero-crossing count value of the zero-crossing signal includes:

[0040] Step X10: if the zero-crossing count value of the zero-crossing signal in the previous time step of the zero-crossing signal is equal to the preset counting threshold, re-counting starts from the zero-crossing signal, and determining the zero-crossing technical value of the zero-crossing signal as the counting initial value;

[0041] Step X20: If the zero-crossing count value of the zero-crossing signal in the previous time step of the zero-crossing signal is less than the preset count threshold, the zero-crossing count value of the zero-crossing signal in the previous time step is accumulated to obtain the zero-crossing count value of the zero-crossing signal.

[0042] In the present embodiment, it should be noted that the preset technical threshold value of the zero-crossing signal is determined according to the number of zero-crossing signals in the preset cycle period, and the preset cycle period includes multiple AC cycles of zero-crossing signals. The preset technical threshold value is equal to the number of zero-crossing signals in the preset cycle period. The counting method of the zero-crossing signal is superimposed in sequence, which is actually to count the number of zero-crossing signals. When the number of zero-crossing signals counted is equal to the preset counting threshold value, the next zero-crossing signal will start counting again. The counting initial value is the value at the beginning of the zero-crossing signal technology. For example, the counting initial value can be 1, and the preset technical threshold value can be 50. The embodiment of the present application counts the zero-crossing signal to determine the zero-crossing count value of the zero-crossing signal, so as to facilitate determining whether to turn on the thyristor at the zero-crossing point of the zero-crossing signal to adjust the heating wire power according to the count value of the zero-crossing signal. The moment when the zero-crossing signal counting starts can be the zero-crossing signal corresponding to when the air conditioner is turned on.

[0043] Step S20, judging whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition according to the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value;

[0044] Step S30: If the zero-crossing point of the zero-crossing signal satisfies the thyristor conduction condition, the thyristor is turned on at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire.

[0045] In the embodiments of the present application, it should be noted that the preset cycle includes multiple AC cycles of zero-crossing signals, and each preset cycle has a corresponding control duty cycle. The control duty cycle is characterized by the duty cycle of the heating wire in the preset cycle. The control duty cycle includes a first temperature difference duty cycle, a second temperature difference duty cycle, and a voltage duty cycle. A thyristor (Silicon Controlled Rectifier, SCR) is a high-power electrical component that is used to adjust the heating power of the heating wire of the air conditioner. The thyristor can control the on-off of the current. When the thyristor is turned on, the power of the heating wire can be adjusted.

[0046] As an example, steps S10 to S30 include: determining whether the zero-crossing detection circuit in the air conditioner detects a zero-crossing signal; if a zero-crossing signal is detected, determining to turn on the air conditioner heating wire after a preset start-up time delay of the zero-crossing signal to turn on the heating wire at the zero-crossing point of the zero-crossing signal, and counting the zero-crossing signal to obtain the zero-crossing count value of the zero-crossing signal; if no zero-crossing signal is detected, continuing to monitor the zero-crossing signal by the zero-crossing detection circuit; determining whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition based on the control duty cycle and zero-crossing count value of the heating wire in a preset cycle period; if the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition, turning on the thyristor at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire; if the zero-crossing point of the zero-crossing signal does not meet the thyristor conduction condition, the thyristor is not turned on, and the operating power of the heating wire operates according to the heating wire power corresponding to the zero-crossing point of the previous zero-crossing signal.

[0047] When a zero-crossing signal is detected, the present invention does not immediately activate the heating wire of the air conditioner. Instead, the heating wire is activated after a preset activation time of the zero-crossing signal. This delays the activation of the heating wire at the zero-crossing point, thereby avoiding harmonic interference. This improves the stability and safety of the air conditioner. This eliminates the need for a current spike absorption circuit in the air conditioner to absorb current spikes to eliminate harmonic interference, reducing the circuit cost of the air conditioner. Furthermore, a thyristor is determined to activate at the zero-crossing point, and the thyristor adjusts the operating power of the heating wire, thereby preventing the heating wire from constantly operating at a certain power, resulting in poor heating effect or high power consumption. Therefore, the present invention controls the activation of the heating wire at the zero-crossing point, and then adjusts the power of the heating wire by determining whether the thyristor is activated at the zero-crossing point. This effectively adjusts the power of the heating wire of the air conditioner without increasing circuit cost. In other words, the power of the auxiliary heater of the air conditioner can be adjusted without generating harmonic interference, thereby improving the stability and safety of the air conditioner during energy-saving operation. The auxiliary heater can be a heating wire.

[0048] Wherein, after the step of detecting the zero-crossing signal of the air conditioner, the control method of the air conditioner includes:

[0049] Step Y10, turning off the heating wire after a preset turning-off time delay of the zero-crossing signal so as to turn off the heating wire before the next zero-crossing signal of the zero-crossing signal.

[0050] In this embodiment, it should be noted that the preset off-delay can be obtained based on the actual monitoring of the zero-crossing signal in the air conditioner. The preset off-delay refers to the period between the moment the zero-crossing signal is detected and the moment the next zero-crossing signal arrives. For example, the preset off-delay can be determined by observing the waveform corresponding to the zero-crossing signal. The present application turns off the heating wire before the next zero-crossing signal, thereby facilitating the adjustment of the heating wire power at the zero-crossing point of the next zero-crossing signal.

[0051] Example 2

[0052] Further, refer to Figure 2 Based on the above embodiment of the present application, in another embodiment of the present application, the same or similar contents as the above embodiment can be referred to the above introduction and will not be repeated hereafter. On this basis, before the step of determining whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition based on the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value, the air conditioner auxiliary heating control method includes:

[0053] Step A10, determining a first temperature difference duty cycle of the heating wire according to a set temperature difference between the current indoor temperature and the air conditioner set temperature;

[0054] Step A20, determining a second temperature difference duty cycle of the heating wire according to the instantaneous temperature difference between the current indoor temperature and the indoor temperature in the previous time step;

[0055] Step A30, determining a voltage duty cycle according to a voltage change of the AC voltage of the air conditioner in a preset cycle period;

[0056] Step A40: Using the first temperature difference duty cycle, the second temperature difference duty cycle, and the voltage duty cycle as the control duty cycle of the heating wire.

[0057] In the embodiment of the present application, it should be noted that the control duty cycle is the duty cycle within a preset cycle. By determining the duty cycle within the preset cycle, the power within the preset cycle can be determined. By calculating the control duty cycle within each preset cycle, the power of the heating wire can be adjusted. Specifically, the control duty cycle includes a first temperature difference duty cycle, a second temperature difference duty cycle, and a voltage duty cycle. Among them, the first temperature difference duty cycle refers to the duty cycle corresponding to the set temperature difference between the current indoor temperature and the air conditioner set temperature, and the second temperature difference duty cycle refers to the duty cycle corresponding to the moment temperature difference between the current indoor temperature and the indoor temperature of the previous time step. The current indoor temperature can be the initial moment of the preset cycle, and the indoor temperature of the previous time step can be the initial moment of the preset cycle before the preset cycle. The set temperature difference is the difference between the current indoor temperature and the air conditioner set temperature, the moment temperature difference is the moment temperature difference between the current indoor temperature and the indoor temperature of the previous time step, and the voltage change refers to the voltage change corresponding to the AC voltage of the air conditioner within the preset cycle. The embodiment of the present application determines the control duty cycle to adjust the power of the heating wire by considering the current indoor temperature, the indoor temperature at the previous moment, the air conditioner set temperature and the changes in the AC voltage, so that the operating power of the heating wire is associated with the indoor temperature and the air conditioner set temperature, so that the power of the heating wire can be reasonably controlled to reduce the power consumption when the indoor temperature reaches the air conditioner set temperature. Further, by considering the voltage change, the problem of unstable operating power of the heating wire caused by unstable voltage fluctuation is solved. The first temperature difference duty cycle corresponding to the temperature difference at the moment and the second temperature difference duty cycle corresponding to the set temperature difference can be preset in advance. For example, when the set temperature difference is less than -10°, the corresponding first temperature difference duty cycle is 0; when the set temperature difference is greater than -10° and less than or equal to -5°, the corresponding first temperature difference duty cycle is 0; when the set temperature difference is greater than -5° and less than or equal to -3°, the corresponding first temperature difference duty cycle is 20%; when the set temperature difference is greater than -3° and less than or equal to 0°, the corresponding first temperature difference duty cycle is 0%. The ratio is 30%. When the set temperature difference and the set temperature difference are both greater than 0° and less than or equal to 3°, the corresponding first temperature difference duty cycle is 60%. When the set temperature difference is greater than 0° and less than or equal to 3°, the corresponding first temperature difference duty cycle is 60%. When the set temperature difference is greater than 3° and less than or equal to 5°, the corresponding first temperature difference duty cycle is 70%. When the set temperature difference is greater than 5° and less than or equal to 10°, the corresponding first temperature difference duty cycle is 80%. When the set temperature difference is greater than 10° and less than or equal to 15°, the corresponding first temperature difference duty cycle is 100%. When the set temperature difference is greater than 15°, the first temperature difference duty cycle is also 100%.When the temperature difference at the moment is less than -10°, the corresponding second temperature difference duty cycle is 0; when the temperature difference at the moment is greater than -10° and less than or equal to -5°, the corresponding second temperature difference duty cycle is 0; when the temperature difference at the moment is greater than -5° and less than or equal to -3°, the corresponding second temperature difference duty cycle is 20%; when the temperature difference at the moment is greater than -3° and less than or equal to 0°, the corresponding second temperature difference duty cycle is 30%; when the temperature difference at the moment and the set temperature difference are both greater than 0° and less than or equal to 3°, the corresponding second temperature difference duty cycle is 60%; when the temperature difference at the moment is greater than 0° and less than or equal to 3°, the corresponding second temperature difference duty cycle is 60%; when the temperature difference at the moment is greater than 3° and less than or equal to 5°, the corresponding second temperature difference duty cycle is 70%; when the temperature difference at the moment is greater than 5° and less than or equal to 10°, the corresponding second temperature difference duty cycle is 80%; when the temperature difference at the moment is greater than 10° and less than or equal to 15°, the corresponding second temperature difference duty cycle is 100%; and when the temperature difference at the moment is greater than 15°, the second temperature difference duty cycle is also 100%.

[0058] The step of determining the voltage duty cycle according to the voltage change of the AC voltage of the air conditioner within a preset cycle period includes:

[0059] Step A31, detecting the high level of the AC voltage in a preset cycle to determine the AC voltage value of the AC voltage in the preset cycle;

[0060] Step A32, taking the ratio of the voltage power of the AC voltage value to the preset power as a power comparison value;

[0061] Step A33: taking the difference between the preset comparison value and the power comparison value as the voltage duty cycle.

[0062] It should be noted that the state of the high level of the AC voltage within a preset cycle period can be detected to determine the AC voltage value of the AC voltage within the preset cycle period. For example, the duration of the high level of the AC voltage within the preset cycle period can be detected to further determine the AC voltage value of the AC voltage within the preset cycle period. The preset power can be the rated power corresponding to the heating wire of the air conditioner at a voltage of 220V. The ratio of the voltage power of the AC voltage value to the preset power can be calculated. The ratio of the square of the AC voltage value to the square of the rated voltage can be directly calculated as the power comparison value. Among them, the preset comparison value is used to measure whether the power corresponding to the AC voltage within the preset cycle period exceeds the rated power. The preset comparison value is generally set to 1. When the power corresponding to the AC voltage within the preset cycle period is equal to the rated power, it means that the power comparison value is 1, the AC voltage duty cycle is 0, and there is no need to adjust the power corresponding to the AC voltage. When the power corresponding to the AC voltage within the preset cycle period is greater than the preset power, the power comparison value is greater than 1, which means that the voltage power is greater than the preset power, and the duty cycle of the AC voltage needs to be reduced. The voltage duty cycle is the difference between the preset comparison value and the power comparison value. When the preset comparison value is less than the power comparison value, the voltage duty cycle is negative, that is, the duty cycle corresponding to the AC voltage is reduced, and the control duty cycle is reduced, so that the power corresponding to the AC voltage can be adjusted down. When the preset comparison value is greater than the power comparison value, the voltage duty cycle is positive, indicating that the voltage power corresponding to the AC voltage is less than the preset power, and the power corresponding to the AC voltage needs to be increased. Increasing the duty cycle corresponding to the AC voltage also increases the control duty cycle.

[0063] The embodiment of the present application detects the high-level duration of the AC voltage corresponding to a preset cycle period, and thus determines the voltage power of the AC voltage based on the AC voltage value in the preset cycle period, and then determines whether the voltage power exceeds the rated power based on the rated power to adjust the power corresponding to the AC voltage, thereby solving the technical problem of power instability caused by AC voltage fluctuations, and can improve the heating effect of the air conditioner.

[0064] The step of judging whether the zero-crossing point of the zero-crossing signal satisfies the thyristor conduction condition according to the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value comprises:

[0065] Step B10, matching a control signal entry for the control duty cycle of the preset cycle in a preset signal table according to the control duty cycle;

[0066] Step B20, searching the control signal entry for a signal value of the zero-crossing signal according to the zero-crossing count value;

[0067] Step B30: if the signal value is equal to the preset conduction signal value, determining that the zero-crossing point of the zero-crossing signal satisfies the thyristor conduction condition;

[0068] Step B40, if the signal value is not equal to the preset conduction signal value, it is determined that the zero-crossing point of the zero-crossing signal does not meet the thyristor conduction condition.

[0069] In the embodiments of the present application, it should be noted that the preset signal table is the zero-crossing signal of the thyristor turned on in the preset cycle period for each control duty ratio. The preset signal table is a two-dimensional array, the control signal entry is a group of data in the preset signal table, the control signal entry includes the signal value of all zero-crossing signals in the preset cycle period, the signal value is used to indicate whether to turn on the thyristor corresponding to the zero-crossing point of the zero-crossing signal, the signal value is generally 1 or 0, the signal value of 1 indicates that the thyristor can be turned on, and the signal value of 0 indicates that the thyristor is not turned on. Each control signal entry in the preset signal table corresponds to a control duty ratio. Since the control signal entry is an array, the control signal entry includes the signal value of all zero-crossing signals in the preset cycle period, so the position corresponding to the zero-crossing signal can be determined in the control signal entry according to the zero-crossing count value of the zero-crossing signal to determine the signal value of the zero-crossing signal, and then whether the thyristor corresponding to the zero-crossing point of the zero-crossing signal is turned on or not is determined according to the signal value. The preset conduction signal value is 1, and when the signal value is the preset conduction signal value, it indicates that the thyristor corresponding to the zero-crossing signal can be turned on.

[0070] As an example, steps B10 to B40 include: according to the control duty ratio, matching the control signal entry for the control duty ratio of the preset cycle period in the preset signal table; according to the zero-crossing count value, finding the signal value of the zero-crossing signal in the control signal entry; if the signal value is equal to the preset conduction signal value, it is determined that the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition; if the signal value is not equal to the preset conduction signal value, it is determined that the zero-crossing point of the zero-crossing signal does not meet the thyristor conduction condition. For example, when the control duty ratio is 6%, the control signal entry with a duty ratio of 6% is matched in the preset signal table, and the signal value of the zero-crossing signal is found in the control signal entry according to the zero-crossing count value. If the signal value is 1, it is determined that the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition, and if the signal value is 0, it is determined that the zero-crossing point of the zero-crossing signal does not meet the thyristor conduction condition. Figure 3 , Figure 3 The schematic diagram of the preset signal table is as follows, Figure 3DUTY_TAB

[100]

[50] in the table is a preset signal table, which is a two-dimensional array with 100 rows and 20 columns. Each row includes 50 signal values ​​of zero-crossing signals. The control signal entry can be the data of any row in the two-dimensional array. For example, the preset cycle period includes 50 zero-crossing signals. When the control duty cycle of the preset cycle period is 6%, the control entry corresponding to the preset cycle period is the 5th row of data. When the zero-crossing signal in the preset cycle period is detected, the corresponding signal value is searched in the control entry with the zero-crossing count value of the zero-crossing signal. When the zero-crossing count value is 2, the corresponding signal value in the control entry is the signal value of the preset signal table DUTY_TAB[5][1], and the corresponding signal value is 0. If the zero-crossing count value is 17, the corresponding signal value in the control entry is the signal value of the preset signal table DUTY_TAB[5]

[16] , and the corresponding signal value is 1. Figure 3 In the preset signal table, there are control signal entries corresponding to control duty cycles of 0%, 2%, 3%, 4%, 5%, 6% and 100%, wherein the positions of zero-crossing signals with a signal value of 1 in the control signal entries with a control duty cycle less than 20% can be evenly distributed, and the positions of zero-crossing signals with a signal value of 1 in the control signal entries with a control duty cycle greater than or equal to 20% in the preset signal table can be alternately distributed between signal value 1 and signal value 0, and the number of 1s corresponding to the control signal entries in the preset signal table can be determined based on the duty cycle corresponding to the control entry, because the control signal entry includes 50 zero-crossing signals. When the duty cycle corresponding to the control entry is 2%, the number of zero-crossing signals with a signal value of 1 in the control entry is 0%. The number of zero-crossing signals is the product of the number of zero-crossing signals in the control signal entry and the duty cycle, that is, when the duty cycle corresponding to the control entry is 2%, the number of zero-crossing signals is 1. For example, when the duty cycle of the control signal entry is 31%, the number of zero-crossing signals with signal values ​​of 1 in the control signal entry is 15. When there is a decimal point in the product of the number of zero-crossing signals and the duty cycle in the control signal entry, it can be rounded up to make the number of zero-crossing signals with signal values ​​of 1 an integer. When the duty cycle of the control signal entry is 31%, the distribution pattern of the corresponding zero-crossing signal signal value of 1 is 1010 distribution until there are 15 signal values ​​of 1 in the control signal entry, and the remaining signal values ​​in the control signal entry are all 0.

[0071] Further, refer to Figure 4 Schematic diagram of a zero-crossing detection circuit and a thyristor control circuit in an embodiment of the present application. Figure 4 It includes a rectifier circuit 100, a thyristor control circuit 200, and a zero-crossing detection circuit 300. The thyristor TR1 is BT138-800E, and the thyristor optocoupler U1 is LTV-3052-L / KTLP160J. U1 has a cathode, an anode, and a main terminal. Figure 4 IN refers to the input, the CN1 port is connected to the heating wire, the thyristor control circuit and the zero-crossing detection circuit are both connected to the microcontroller unit U3, the zero-crossing signal is detected by the zero-crossing detection circuit, and the thyristor control circuit controls the conduction or non-conduction of the thyristor.

[0072] Example 3

[0073] Reference Figure 5 The embodiment of the present application further provides an air conditioner auxiliary heating control device, the air conditioner auxiliary heating control device comprising:

[0074] The detection module 10 is configured to, if a zero-crossing signal of the air conditioner is detected, determine to delay starting the heating wire of the air conditioner after a preset start time of the zero-crossing signal so as to start the heating wire at a zero-crossing point of the zero-crossing signal, and determine a zero-crossing count value of the zero-crossing signal;

[0075] A judgment module 20 is used to judge whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition according to the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value;

[0076] The regulating module 30 is configured to, if the zero-crossing point of the zero-crossing signal satisfies a thyristor conduction condition, conduct the thyristor at the zero-crossing point of the zero-crossing signal to regulate the operating power of the heating wire.

[0077] Optionally, the detection module 10 is further configured to:

[0078] The heating wire is turned off after a preset off time delay of the zero-crossing signal so as to be turned off before the next zero-crossing signal of the zero-crossing signal.

[0079] Optionally, the judging module 20 is further configured to:

[0080] determining a first temperature difference duty cycle of the heating wire according to a set temperature difference between the current indoor temperature and the set temperature of the air conditioner;

[0081] determining a second temperature difference duty cycle of the heating wire according to a temperature difference between the current indoor temperature and the indoor temperature at the previous time step;

[0082] determining a voltage duty cycle according to a voltage change of the AC voltage of the air conditioner in a preset cycle;

[0083] The first temperature difference duty cycle, the second temperature difference duty cycle, and the voltage duty cycle are collectively used as the control duty cycle of the heating wire.

[0084] Optionally, the judging module 20 is further configured to:

[0085] detecting a high level of the AC voltage in a preset cycle to determine an AC voltage value of the AC voltage in the preset cycle;

[0086] The ratio of the voltage power of the AC voltage value to the preset power is used as a power comparison value;

[0087] The difference between the preset comparison value and the power comparison value is used as the voltage duty cycle.

[0088] Optionally, the judging module 20 is further configured to:

[0089] Matching a control signal entry in a preset signal table with the control duty cycle of the preset cycle according to the control duty cycle;

[0090] searching the control signal entry for a signal value of the zero-crossing signal according to the zero-crossing count value;

[0091] If the signal value is equal to the preset conduction signal value, determining that the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition;

[0092] If the signal value is not equal to the preset conduction signal value, it is determined that the zero-crossing point of the zero-crossing signal does not meet the thyristor conduction condition.

[0093] Optionally, the adjustment module 30 is further configured to:

[0094] In response to an air conditioner on command, determining an initial duty cycle of the heating wire based on an initial temperature difference between an indoor temperature when the air conditioner is on and an air conditioner set temperature set by the air conditioner;

[0095] The initial power of the heating wire is determined according to the initial duty cycle to control the heating wire to operate at the initial power at a zero-crossing point when the air conditioner is turned on.

[0096] Optionally, the detection module 10 is further configured to:

[0097] If the zero-crossing count value of the zero-crossing signal at the previous time step of the zero-crossing signal is equal to a preset counting threshold, recounting starts from the zero-crossing signal, and determining the zero-crossing technical value of the zero-crossing signal as the counting initial value;

[0098] If the zero-crossing count value of the zero-crossing signal in the previous time step of the zero-crossing signal is less than the preset count threshold, the zero-crossing count value of the zero-crossing signal in the previous time step is accumulated to obtain the zero-crossing count value of the zero-crossing signal.

[0099] The air conditioner auxiliary heating control device provided by the application adopts the air conditioner auxiliary heating control method in the above embodiment, and aims to solve the technical problem of high auxiliary heating cost of the air conditioner in energy-saving operation caused by harmonic interference. Compared with the prior art, the air conditioner auxiliary heating control method provided by the embodiment of the application has the same beneficial effects as the air conditioner auxiliary heating control method provided by the above embodiment, and the other technical features in the air conditioner auxiliary heating control device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0100] Embodiment four

[0101] The electronic device provided by the embodiment of the application can be a playing device, and the electronic device comprises at least one processor, and a memory connected with the at least one processor in communication; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the air conditioner auxiliary heating control method in the above embodiment.

[0102] Reference will be made to Figure 6 , which shows a structural schematic diagram of an electronic device suitable for implementing the embodiments of the present disclosure. The electronic device in the embodiments of the present disclosure can include but is not limited to mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (portable Android devices), PMPs (portable media players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. Figure 6 The electronic device shown is only an example, and should not bring any limitation to the functions and use range of the embodiments of the present disclosure.

[0103] As Figure 6 shown, the electronic device can include a processing device 1001 (such as a central processor, a graphics processor, etc.), which can perform various appropriate actions and processes according to programs stored in a ROM (Read-Only Memory) 1002 or programs loaded from a storage device 1003 into a RAM (Random Access Memory) 1004. In the RAM 1004, various programs and data required for the operation of the electronic device are also stored. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus.

[0104] Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, tachometer, gyroscope, etc.; output devices 1008 including, for example, an LCD (Liquid Crystal Display), speaker, vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, hard disk, etc.; and communication devices 1009. The communication devices can allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows an electronic device with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have instead.

[0105] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication system, or installed from a storage system, or installed from a ROM. When the computer program is executed by a processing system, the above-mentioned functions defined in the method of the embodiment of the present disclosure are performed.

[0106] The electronic device provided in this application utilizes the air conditioner auxiliary heating control method described in the first embodiment above to address the technical issue of high auxiliary heating costs during energy-saving operation of an air conditioner due to harmonic interference. Compared to the prior art, the product flow data distribution provided in this embodiment of the application offers the same beneficial effects as the air conditioner auxiliary heating control method described in the above embodiment. The other technical features of this air conditioner auxiliary heating control device are the same as those disclosed in the above embodiment and are not further elaborated here.

[0107] It should be understood that various parts of the present disclosure can be implemented with hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

[0108] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0109] Example 5

[0110] This embodiment provides a readable storage medium having computer-readable program instructions stored thereon, and the computer-readable program instructions are used to execute the auxiliary heating control method for the air conditioner in the above-mentioned embodiment 1.

[0111] The readable storage medium provided in the embodiment of the present application can be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor devices, equipment or devices, or any combination thereof. More specific examples of readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable EPROM (Electrical Programmable Read Only Memory, read-only memory) or flash memory, an optical fiber, a portable compact disk CD-ROM (compact disc read-only memory, read-only memory), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the readable storage medium can be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution device, device or device. The program code contained on the readable storage medium can be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency, radio frequency) and the like, or any suitable combination thereof.

[0112] The above-mentioned readable storage medium may be included in the electronic device; or may exist independently without being assembled into the electronic device.

[0113] The above-mentioned readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by an electronic device, the electronic device: if a zero-crossing signal of the air conditioner is detected, it is determined to delay the start-up of the heating wire of the air conditioner after the preset start-up time of the zero-crossing signal to turn on the heating wire at the zero-crossing point of the zero-crossing signal, and determine the zero-crossing count value of the zero-crossing signal; based on the control duty cycle of the heating wire in the preset cycle period and the zero-crossing count value, it is judged whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition; if the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition, the thyristor is turned on at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire.

[0114] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a LAN (local area network) or WAN (wide area network), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0115] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the devices, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based device that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0116] The modules involved in the embodiments described in this disclosure may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0117] The readable storage medium provided in this application stores computer-readable program instructions for executing the aforementioned air conditioner auxiliary heating control method, aiming to address the technical issue of high auxiliary heating costs during energy-saving operation of air conditioners due to harmonic interference. Compared to the prior art, the beneficial effects of the readable storage medium provided in this embodiment of the application are similar to those of the air conditioner auxiliary heating control method provided in the aforementioned embodiment, and are not further elaborated here.

[0118] Example 6

[0119] The present application also provides a computer program product, comprising a computer program, which implements the steps of the above-mentioned air conditioner auxiliary heating control method when executed by a processor.

[0120] The computer program product provided in this application is intended to address the technical issue of high auxiliary heating costs during energy-saving operation of an air conditioner due to harmonic interference. Compared to the prior art, the beneficial effects of the computer program product provided in the embodiments of this application are similar to those of the auxiliary heating control method for an air conditioner provided in the aforementioned embodiments, and are not further elaborated here.

[0121] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. An air conditioner auxiliary heating control method, characterized in that: The air conditioner auxiliary heating control method includes: If a zero-crossing signal of the air conditioner is detected, determining to delay starting the heating wire of the air conditioner after a preset start time of the zero-crossing signal so as to start the heating wire at a zero-crossing point of the zero-crossing signal, and determining a zero-crossing count value of the zero-crossing signal; According to the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value, it is determined whether the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition; If the zero-crossing point of the zero-crossing signal satisfies the thyristor conduction condition, then the thyristor is turned on at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire; The step of judging whether the zero-crossing point of the zero-crossing signal satisfies the thyristor conduction condition according to the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value comprises: Matching a control signal entry in a preset signal table with the control duty cycle of the preset cycle according to the control duty cycle; searching the control signal entry for a signal value of the zero-crossing signal according to the zero-crossing count value; If the signal value is equal to the preset conduction signal value, determining that the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition; If the signal value is not equal to the preset conduction signal value, it is determined that the zero-crossing point of the zero-crossing signal does not meet the thyristor conduction condition.

2. The air conditioner auxiliary heating control method according to claim 1, characterized in that: After the step of detecting the zero-crossing signal of the air conditioner, the control method of the air conditioner includes: The heating wire is turned off after a preset off time delay of the zero-crossing signal so as to be turned off before the next zero-crossing signal of the zero-crossing signal.

3. The auxiliary heating control method for an air conditioner according to claim 1, wherein: Before the step of determining whether the zero-crossing point of the zero-crossing signal satisfies the thyristor conduction condition based on the control duty cycle of the heating wire in the preset cycle and the zero-crossing count value, the air conditioner auxiliary heating control method includes: determining a first temperature difference duty cycle of the heating wire according to a set temperature difference between the current indoor temperature and the set temperature of the air conditioner; determining a second temperature difference duty cycle of the heating wire according to a temperature difference between the current indoor temperature and the indoor temperature at the previous time step; determining a voltage duty cycle according to a voltage change of the AC voltage of the air conditioner in a preset cycle; The first temperature difference duty cycle, the second temperature difference duty cycle, and the voltage duty cycle are collectively used as the control duty cycle of the heating wire.

4. The auxiliary heating control method for an air conditioner according to claim 3, wherein: The step of determining the voltage duty cycle according to the voltage change of the AC voltage of the air conditioner within a preset cycle period includes: detecting a high level of the AC voltage in a preset cycle to determine an AC voltage value of the AC voltage in the preset cycle; The ratio of the voltage power of the AC voltage value to the preset power is used as a power comparison value; The difference between the preset comparison value and the power comparison value is used as the voltage duty cycle.

5. The auxiliary heating control method for an air conditioner according to claim 1, wherein: Before the step of, if a zero-crossing signal of the air conditioner is detected, determining to delay starting the heating wire of the air conditioner after a preset start time of the zero-crossing signal to control the heating wire to start at the zero-crossing point of the zero-crossing signal, the air conditioner auxiliary heating control method includes: In response to an air conditioner on command, determining an initial duty cycle of the heating wire based on an initial temperature difference between an indoor temperature when the air conditioner is on and an air conditioner set temperature set by the air conditioner; The initial power of the heating wire is determined according to the initial duty cycle to control the heating wire to operate at the initial power at a zero-crossing point when the air conditioner is turned on.

6. The auxiliary heating control method for an air conditioner according to claim 1, wherein: The step of determining the zero-crossing count value of the zero-crossing signal comprises: If the zero-crossing count value of the zero-crossing signal at the previous time step of the zero-crossing signal is equal to a preset counting threshold, recounting starts from the zero-crossing signal, and determining the zero-crossing technical value of the zero-crossing signal as the counting initial value; If the zero-crossing count value of the zero-crossing signal in the previous time step of the zero-crossing signal is less than the preset count threshold, the zero-crossing count value of the zero-crossing signal in the previous time step is accumulated to obtain the zero-crossing count value of the zero-crossing signal.

7. An air conditioner auxiliary heating control device, characterized in that: The auxiliary heating control device of the air conditioner comprises: a detection module, configured to, upon detecting a zero-crossing signal of the air conditioner, determine to delay starting the heating wire of the air conditioner after a preset start time of the zero-crossing signal so as to start the heating wire at a zero-crossing point of the zero-crossing signal, and determine a zero-crossing count value of the zero-crossing signal; A judgment module, configured to judge whether the zero-crossing point of the zero-crossing signal satisfies a thyristor conduction condition according to a control duty cycle of the heating wire in a preset cycle and the zero-crossing count value; an adjusting module, configured to, if the zero-crossing point of the zero-crossing signal satisfies a thyristor conduction condition, turn on the thyristor at the zero-crossing point of the zero-crossing signal to adjust the operating power of the heating wire; The judgment module is further used to match a control signal entry for the control duty cycle of the preset cycle period in a preset signal table according to the control duty cycle; search the signal value of the zero-crossing signal in the control signal entry according to the zero-crossing count value; if the signal value is equal to the preset conduction signal value, determine that the zero-crossing point of the zero-crossing signal meets the thyristor conduction condition; if the signal value is not equal to the preset conduction signal value, determine that the zero-crossing point of the zero-crossing signal does not meet the thyristor conduction condition.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively coupled to the at least one processor; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can perform the steps of the air conditioner auxiliary heating control method according to any one of claims 1 to 6.

9. A readable storage medium, characterized in that: The readable storage medium stores a program for implementing the air conditioner auxiliary heating control method, and the program for implementing the air conditioner auxiliary heating control method is executed by the processor to implement the steps of the air conditioner auxiliary heating control method according to any one of claims 1 to 6.

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