Heating ventilation device and control method, apparatus, electronic device and medium thereof

Abstract

The application provides a heating ventilation device and a control method, device, electronic device and medium thereof. The method comprises: determining the rotating speed of a fan motor when the heating module is running; starting to count the accumulated time length of the rotating speed being less than the rotating speed threshold value when the rotating speed is less than the rotating speed threshold value; controlling the heating module in a limiting mode when the accumulated time length is not less than the accumulated time length threshold value; starting to count the protection time length when the rotating speed is less than the rotating speed threshold value when the heating module is controlled in the limiting mode; and controlling the heating module and the fan module in a protection mode when the protection time length is greater than the protection time length threshold value. According to the embodiments of the application, the defects of insufficient anti-interference ability of the existing heating ventilation device can be overcome, and the false failure problem caused by instantaneous fluctuation of the rotating speed can be solved.

Description

Technical Field

[0001] This application belongs to the technical field of heating and ventilation equipment, specifically relating to a heating and ventilation equipment and its control method, device, electronic equipment and medium. Background Technology

[0002] Heating and ventilation equipment can refer to equipment that includes a heating module and a fan module. The heating module heats the air, and the fan module circulates the heated air into the environment, thereby increasing the ambient temperature.

[0003] A fan module may include a fan and a fan motor. During actual operation, the fan motor speed often drops abnormally due to mechanical jamming, sudden load changes, voltage fluctuations, or bearing wear. When the fan speed drops abnormally, the lack of circulating power from the fan module can cause the heating module to operate without proper operation, potentially leading to localized temperature increases and even a fire. Therefore, in related technologies, when a drop in fan motor speed is detected, the system will immediately shut down, or shut down after a period of time following the detected drop, thus avoiding the dangers caused by continuous operation of the heating module.

[0004] While the above methods can mitigate potential risks during the use of the heating fan module to some extent, in practical applications, there are still issues such as accidental shutdown or failure to respond in time, leading to motor burnout. Summary of the Invention

[0005] In view of the above problems, a heating and ventilation device and its control method, apparatus, electronic equipment and medium are proposed to overcome the above problems or at least partially solve the above problems, including: A control method for a heating and ventilation device, the heating and ventilation device including a heating module and a fan module, the fan module including a fan motor, the method comprising: When the heating module is operating, determine the rotational speed of the fan motor; When the rotational speed is less than the rotational speed threshold, the cumulative duration of the rotational speed being less than the rotational speed threshold is started; If the cumulative duration is not less than the cumulative duration threshold, the heating module is controlled in a limiting mode; When the heating module is controlled in the aforementioned limiting mode, if the rotation speed is less than the rotation speed threshold, the protection time is started. If the protection duration exceeds the protection duration threshold, the heating module and the fan module are controlled in protection mode.

[0006] In some embodiments, the method further includes: Determine the status information of the heating and ventilation equipment; The rotational speed threshold is determined based on the status information.

[0007] In some embodiments, the method further includes: Determine the environmental information of the environment in which the heating and ventilation equipment is located; The rotational speed threshold is determined based on the environmental information.

[0008] In some embodiments, the method further includes: Determine the status information of the heating and ventilation equipment, as well as the environmental information of the environment in which the heating and ventilation equipment is located; The rotational speed threshold is determined based on the status information and the environmental information.

[0009] In some embodiments, the method further includes: If the cumulative duration is less than the cumulative duration threshold, and the rotational speed is not less than the rotational speed threshold, the calculation of the cumulative duration is paused, and the calculation of the recovery duration begins. If the recovery time exceeds the recovery time threshold, the heating module is controlled in normal mode, and the recovery time is reset to zero. If the recovery time is not greater than the recovery time threshold, and the rotational speed is less than the rotational speed threshold, the cumulative time continues to be calculated, and the recovery time is reset to zero. If the recovery time is not greater than the recovery time threshold, and the rotational speed is not less than the rotational speed threshold, the recovery time continues to be calculated. If the cumulative duration is less than the cumulative duration threshold, and the rotational speed is less than the rotational speed threshold, the cumulative duration continues to be calculated.

[0010] In some embodiments, the method further includes: When the heating module is controlled in the restricted mode, if the rotation speed is not less than the rotation speed threshold, the start-up time is counted. If the activation duration exceeds the activation duration threshold, the heating module is controlled in normal mode, and the cumulative duration and the activation duration are reset to zero. If the opening duration is not greater than the opening duration threshold, and the rotational speed is not less than the rotational speed threshold, the opening duration continues to be counted. If the opening duration is not greater than the opening duration threshold, and the rotational speed is less than the rotational speed threshold, the cumulative duration continues to be calculated, and the opening duration is reset to zero.

[0011] In some embodiments, the method further includes: If the protection duration is not greater than the protection duration threshold, and the rotational speed is less than the rotational speed threshold, the protection duration continues to be calculated. If the protection duration is not greater than the protection duration threshold, and the rotational speed is not less than the rotational speed threshold, the cumulative duration continues to be calculated, and the protection duration is then reset to zero.

[0012] In some embodiments, the method further includes: Determine the status information of the heating and ventilation equipment and / or the environmental information of the environment in which the heating and ventilation equipment is located; Based on the status information and / or the environmental information, a set of duration thresholds is determined; the set of duration thresholds includes the cumulative duration threshold and the protection duration threshold.

[0013] This application also provides a heating and ventilation device, including a heating module, a fan module, and a control module. The fan module includes a fan motor, and the control module is used to execute the control method of the heating and ventilation device described above.

[0014] This application embodiment also provides a control device for a heating and ventilation equipment, the heating and ventilation equipment including a heating module and a fan module, the fan module including a fan motor, the device including: A speed determination module is used to determine the speed of the fan motor when the heating module is in operation; The cumulative duration timing module is used to start counting the cumulative duration when the rotational speed is less than the rotational speed threshold. A limiting module is used to control the heating module in a limiting mode when the cumulative duration is not less than a cumulative duration threshold. The protection duration timing module is used to start timing the protection duration if the rotation speed is less than the rotation speed threshold when the heating module is controlled in the restricted mode. A protection module is used to control the heating module and the fan module in protection mode when the protection duration exceeds the protection duration threshold.

[0015] This application also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the control method of the heating and ventilation equipment described above.

[0016] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the above-described control method for the heating and ventilation equipment.

[0017] The embodiments of this application have the following advantages: This application embodiment constructs a multi-level speed monitoring logic based on time accumulation, introducing independent time variables such as accumulation duration and protection duration, combined with speed thresholds, to achieve dynamic determination of the fan motor's operating status. In this embodiment, it can effectively distinguish between instantaneous speed fluctuations and continuous low-speed faults, thereby effectively filtering instantaneous low-speed interference during startup, avoiding the risk of frequent equipment start-ups and shutdowns and fan motor damage, and also preventing frequent relay switching due to brief fluctuations, thus improving equipment operational stability. Based on this embodiment, the shortcomings of insufficient anti-interference capability in existing heating and ventilation equipment can be overcome, and the problem of false alarms caused by instantaneous speed fluctuations can be solved. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a flowchart illustrating the steps of a control method for a heating and ventilation device according to an embodiment of this application. Figure 2 This is a flowchart illustrating the steps of another control method for a heating and ventilation device according to an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a control device for a heating and ventilation equipment according to an embodiment of this application. Detailed Implementation

[0019] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0020] In heating and ventilation equipment, the fan motor is the core power component. The speed stability of the fan motor directly affects the operating efficiency, noise level, and service life of the equipment.

[0021] During actual operation, the motor speed of the fan module often drops abnormally due to mechanical jamming, sudden load changes, voltage fluctuations, or bearing wear.

[0022] In existing technologies, protection mechanisms for low-speed operation are relatively simple. For example, some solutions only set a fixed low-speed threshold, and immediately shut down the machine once the speed drops below this value. This one-size-fits-all protection method has obvious drawbacks: First, the fan module may temporarily drop below the set threshold speed at startup or when encountering brief load fluctuations. If it is stopped immediately, it will cause the equipment to start and stop frequently, affecting the user experience and shortening the life of the components. Secondly, for fault modes that remain in a critically low-speed state for an extended period, existing solutions often lack effective hierarchical processing logic, making it impossible to distinguish between a brief startup process and a true precursor to a fault. This results in either erroneous shutdowns or failure to cut off power in time, causing the motor to burn out.

[0023] Furthermore, traditional solutions often rely on analog comparators and lack cumulative counting analysis over time, making them ill-suited for complex dynamic operating conditions. Therefore, there is an urgent need for a control method that combines real-time speed feedback with time accumulation logic to achieve multi-level judgment and precise protection.

[0024] Based on this, the present application provides a control method for heating and ventilation equipment, which can overcome the shortcomings of insufficient anti-interference capability of existing heating and ventilation equipment and solve the problem of false alarm faults caused by instantaneous fluctuations in rotation speed.

[0025] In this embodiment of the application, by effectively distinguishing whether the rotational speed is a momentary fluctuation or a continuous low-speed fault, the momentary low-speed interference during the startup process is effectively filtered out, avoiding the risk of frequent equipment start-ups and shutdowns and damage to the fan motor. It also avoids frequent switching of relays due to brief fluctuations, thereby improving the stability of equipment operation.

[0026] Reference Figure 1 The diagram illustrates a flowchart of a control method for a heating and ventilation device according to an embodiment of this application, which may include the following steps: Step 101: With the heating module running, determine the speed of the fan motor.

[0027] In this embodiment of the application, the heating and ventilation equipment can be used to heat the temperature of the environment; for example, the heating and ventilation equipment may include a hot air blower, an electric heater, etc.

[0028] Heating and ventilation equipment may include heating modules and fan modules; the heating modules can be used to heat the environment; the heating methods may include radiant heating, convection heating, heat pump heating, gas heating, electromagnetic heating, graphene heating, thermal storage heating, etc.

[0029] A fan module may include a fan and a fan motor that drives the fan to rotate. In actual operation, the motor speed of the fan module often drops abnormally due to mechanical jamming, sudden load changes, voltage fluctuations or bearing wear.

[0030] To effectively distinguish between instantaneous fluctuations and continuous low-speed faults, this application embodiment constructs a multi-level speed monitoring logic based on time accumulation. It introduces independent time variables such as accumulation duration and protection duration, and combines them with a speed threshold to achieve dynamic determination of the wind turbine motor's operating status. The speed threshold can be set according to actual conditions; this application embodiment does not impose any restrictions on the specific value.

[0031] In some embodiments, the operating status of the heating and ventilation equipment can be detected first, that is, whether the heating module and the fan module in the heating and ventilation module are running.

[0032] For example, users can choose to operate only the fan module, only the heating module, or both the heating module and the fan module simultaneously. This application embodiment does not limit this.

[0033] In some embodiments, when only the fan module is detected to be operating, since there is no issue of excessively high local temperatures caused by the absence of a heating module, a more lenient protection strategy can be employed. For example, the desired speed of the fan motor and its actual speed can be determined first; then, the two can be compared; if the actual speed is lower than the desired speed for a duration exceeding a first preset value, the operation of the fan module can be stopped. This first preset value can be set according to actual conditions, for example, 5 minutes.

[0034] In another example, the temperature of the fan motor can also be collected; if the temperature of the fan motor exceeds a preset value, the operation of the fan module can also be stopped.

[0035] In some embodiments, when it is detected that only the heating module is operating, the desired heating temperature of the heating module and the actual heating temperature of the heating module can be determined first; then, the two can be compared; if the actual heating temperature exceeds the desired heating temperature for a duration exceeding a second preset value, the operation of the heating module can be stopped. The second preset value can be set according to the actual situation, for example: 5 minutes.

[0036] In other embodiments, when only the heating module is detected to be operating, the desired heating temperature and the actual heating temperature of the heating module can be determined first; then, the two can be compared; if the difference between the actual heating temperature and the desired heating temperature exceeds a third preset value, the operation of the heating module can be stopped. This third preset value can be set according to the actual situation, for example, 10 degrees Celsius.

[0037] In some embodiments, when the fan module and heating module are detected to be operating simultaneously, the fan module needs to dissipate the heat emitted by the heating module. If the fan module malfunctions, the heat emitted by the heating module may not be able to dissipate, leading to excessively high local temperatures. To address this, this application embodiment constructs a multi-level speed monitoring logic based on time accumulation, introducing independent time variables such as accumulation duration and protection duration, combined with speed thresholds, to achieve dynamic determination of the fan motor's operating status.

[0038] Specifically, when the heating module is detected to be in operation, this application can monitor the fan motor and determine the fan motor speed in real time.

[0039] In some embodiments, when the fan module is turned on, the fan motor rotates and outputs a periodic square wave signal; in this embodiment, the rotational speed S can be calculated based on the current motor feedback signal.

[0040] For example, there are different conversion formulas for wind turbine motors, such as: The current rotational speed of the fan motor is S = (60 * fclk) / (C * p); Where fclk is a constant that can be set according to actual conditions; P is the frequency multiplication factor, and C is a periodic square wave signal, i.e., motor feedback information.

[0041] In other embodiments, the rotation of the wind turbine motor can also be monitored by sensors to determine the speed of the wind turbine motor.

[0042] Step 102: When the rotational speed is less than the rotational speed threshold, start counting the cumulative duration of the rotational speed being less than the rotational speed threshold.

[0043] After determining the speed of the fan motor, a preliminary judgment can be made based on the speed of the fan motor to determine whether there may be any problems such as abnormal speed. Specifically, a speed threshold can be set in advance, which can be set based on the minimum speed of the fan motor. When the current speed of the fan motor is less than the speed threshold, it can be preliminarily determined that the fan motor may have a speed abnormality problem.

[0044] In practical applications, the fan motor speed falling below the speed threshold not only occurs when the fan motor malfunctions, but can also happen at startup or when encountering brief load fluctuations. If the decision to shut down is based solely on the speed threshold, it could lead to frequent start-ups and shutdowns, or even accidental shutdowns.

[0045] In response to this, this application embodiment introduces independent time variables such as cumulative duration and protection duration in addition to the speed of the fan motor when making judgments, thereby realizing dynamic judgment of the operating status of the fan motor.

[0046] In some embodiments, the cumulative duration of the speed being less than a preset speed threshold can be started when the fan motor speed is determined to be less than the preset speed threshold; that is, the cumulative duration can be started when the fan motor speed is first detected to be less than the preset speed threshold. At this time, other durations can also be reset to zero, such as protection durations.

[0047] Step 103: If the cumulative duration is not less than the cumulative duration threshold, control the heating module in a limited mode.

[0048] After the cumulative time is started, the current speed of the fan motor can be monitored. If the speed of the fan motor is no longer less than the preset speed threshold, the timekeeping of the cumulative time can be stopped.

[0049] Conversely, if the fan motor speed is still less than the preset speed threshold after the cumulative time has started, the cumulative time can continue to be calculated.

[0050] When calculating the cumulative duration, it can be determined whether the cumulative duration is less than a preset cumulative duration threshold. The cumulative duration threshold can be set according to actual circumstances, and this application embodiment does not impose any restrictions on it.

[0051] In some embodiments, if the cumulative duration is less than a preset cumulative duration threshold and the speed of the fan motor is still less than a preset speed threshold, the cumulative duration can continue to be calculated.

[0052] If the cumulative duration is less than the preset cumulative duration threshold, and the fan motor speed is no longer less than the preset speed threshold, it can be determined that the fan motor speed may be abnormal due to the moment of startup, encountering a brief load fluctuation, or other reasons; at this time, the heating and ventilation equipment can be controlled normally.

[0053] In other embodiments, if the cumulative duration is not less than a preset cumulative duration threshold, it can be determined that the fan motor is abnormal; at this time, the heating and ventilation equipment can be stopped, that is, the heating module and the fan module can be stopped.

[0054] In some other embodiments, if the cumulative duration is not less than a preset cumulative duration threshold, it can be determined that the fan motor is abnormal; however, the abnormality may still be caused by factors such as the moment of startup or a brief load fluctuation.

[0055] To further avoid user experience issues caused by frequent startups, this application can control the heating module in a limited mode if the cumulative startup time is not less than a preset cumulative startup time threshold. For example, the limited mode can refer to a mode in which the heating module operates at low power (e.g., minimum power).

[0056] In restricted mode, the power of the heating module can be adjusted from the user-set power to a low power. Therefore, even if the airflow of the fan is reduced due to the reduced fan motor speed, the area heated by the heating module will not experience overheating because the heating module operates at low power.

[0057] Step 104: When the heating module is controlled in the limiting mode, if the rotation speed is less than the rotation speed threshold, start counting the protection time.

[0058] Even when the heating module is controlled in a restricted mode, the speed of the fan motor can still be monitored.

[0059] If the fan motor speed is detected to be no less than the preset speed threshold, it can be determined that the fan motor has returned to normal; control of the heating module can be restored, that is, the heating module can be controlled with the power set by the user.

[0060] Conversely, if the fan motor speed is still detected to be less than the preset speed threshold when the heating module is controlled in the limiting mode, the protection time can be started; at this time, the cumulative time can be paused.

[0061] If, during the protection period, the fan motor speed is detected to be no less than the preset speed threshold, it can be determined that the fan motor has returned to normal; control of the heating module can be restored, that is, the heating module can be controlled with the power set by the user.

[0062] Step 105: If the protection duration exceeds the protection duration threshold, control the heating module and the fan module in protection mode.

[0063] In some embodiments, when calculating the protection duration, it can be determined whether the calculated protection duration is greater than a preset protection duration threshold; the protection duration threshold can be set according to the actual situation, and this application embodiment does not limit it.

[0064] If the calculated protection duration is not greater than the preset protection duration threshold, it can be further determined whether the current fan motor speed is less than the speed threshold; if it is still less, the protection duration can continue to be calculated. Conversely, if it is no longer less than the threshold, it can be determined that the fan motor has returned to normal, at which point control of the heating module can be restored, i.e., the heating module can be controlled according to the power set by the user.

[0065] If the calculated protection duration exceeds the preset protection duration threshold, it can be determined that the fan motor's prolonged low speed may indicate an abnormality. To prevent further fan motor malfunctions and to avoid localized overheating, the heating module and fan module can be controlled in protection mode. For example, in protection mode, the heating module and fan module can be shut down.

[0066] In this embodiment, the heating and ventilation equipment includes a heating module and a fan module, with the fan module including a fan motor. When the heating module is running, the fan motor speed is determined. If the speed is less than a speed threshold, the cumulative duration of the speed being less than the speed threshold is started. If the cumulative duration is not less than the cumulative duration threshold, the heating module is controlled in a limiting mode. While the heating module is controlled in limiting mode, if the speed is less than the speed threshold, a protection duration is started. If the protection duration is greater than the protection duration threshold, both the heating module and the fan module are controlled in a protection mode. This embodiment constructs a multi-level speed monitoring logic based on time accumulation, introducing independent time variables such as cumulative duration and protection duration, combined with a speed threshold, to achieve dynamic determination of the fan motor's operating status. In this embodiment, by effectively distinguishing between instantaneous speed fluctuations and continuous low-speed faults, instantaneous low-speed interference during startup is effectively filtered out, avoiding the risk of frequent equipment start-ups and shutdowns and fan motor damage. It also avoids frequent relay switching caused by brief fluctuations, improving the stability of equipment operation.

[0067] Based on the embodiments of this application, the shortcomings of insufficient anti-interference capability of existing heating and ventilation equipment can be overcome, and the problem of false alarm faults caused by instantaneous fluctuations in rotation speed can be solved.

[0068] In some embodiments of this application, the above method may further include the following steps: Determine the status information of the heating and ventilation equipment; based on the status information, determine the rotational speed threshold.

[0069] In some embodiments, fixed thresholds may lead to problems such as false alarms for new motors and delayed protection for old motors. Therefore, in determining the speed threshold, this application embodiment may refer to the status information of the heating and ventilation equipment, such as the degree of aging and the operating voltage.

[0070] For example, before determining the rotational speed threshold, the status information of the heating and ventilation equipment can be determined first. For instance, the degree of aging can be determined based on the usage time of the heating and ventilation equipment. Or, for example, the operating voltage can be determined based on sensors.

[0071] After determining the status information, the current speed threshold used for comparing the fan motor speeds can be determined based on the status information.

[0072] For example, when the heating and ventilation equipment is first run, the start-up curve and steady-state speed range of the fan motor under standard operating conditions can be recorded; based on this, an initial threshold can be determined.

[0073] Next, during daily use, the initial threshold can be adjusted and corrected based on the determined status information to determine the current speed threshold used to compare the speed of the fan motor.

[0074] For example, when voltage fluctuates, the initial threshold can be scaled proportionally to determine the rotational speed threshold.

[0075] For example, after determining the degree of aging, the initial threshold can be scaled based on the degree of aging; the deeper the aging, the greater the adjustment.

[0076] For example, after determining the degree of aging and voltage fluctuation, an adjustment parameter can be determined for each (refer to the previous example: when there is voltage fluctuation, the initial threshold can be scaled proportionally; the deeper the aging, the greater the adjustment). Based on the influence of the degree of aging and voltage fluctuation on the speed of the fan motor, a scaling ratio can be determined based on these two adjustment parameters, and the initial threshold can be scaled using this scaling ratio to determine the speed threshold.

[0077] After determining the speed threshold, it can be compared with the currently determined speed of the wind turbine motor to determine whether there is an abnormal speed problem in the wind turbine motor.

[0078] In some embodiments of this application, the above method may further include the following steps: Determine the environmental information of the environment where the heating and ventilation equipment is located; based on the environmental information, determine the rotational speed threshold.

[0079] In some embodiments, when determining the rotational speed threshold, environmental information such as ambient temperature may also be taken into account.

[0080] For example, before determining the rotational speed threshold, environmental information of the surrounding environment can be determined first, such as based on sensors.

[0081] After determining the environmental information, the current speed threshold used for comparing the fan motor speeds can be determined based on the environmental information.

[0082] For example, when the heating and ventilation equipment is first run, the start-up curve and steady-state speed range of the fan motor under standard operating conditions can be recorded, and an initial threshold can be determined based on this.

[0083] Next, during daily use, the initial threshold can be adjusted and corrected based on the determined environmental information to determine the current speed threshold used to compare the speed of the fan motor.

[0084] For example, the initial threshold can be scaled proportionally based on temperature to determine the rotational speed threshold. For instance, higher viscosity at low temperatures may allow for a more appropriate reduction in the rotational speed threshold.

[0085] After determining the speed threshold, it can be compared with the currently determined speed of the wind turbine motor to determine whether there is an abnormal speed problem in the wind turbine motor.

[0086] In some embodiments of this application, the above method may further include the following steps: Determine the status information of the heating and ventilation equipment, as well as the environmental information of the environment in which the heating and ventilation equipment is located; determine the speed threshold based on the status information and environmental information.

[0087] In some embodiments, when determining the rotation speed threshold, environmental information of the surrounding environment and status information of the heating and ventilation equipment, such as ambient temperature, can also be taken into account.

[0088] For example, before determining the rotational speed threshold, the environmental information of the surrounding environment and the status information of the heating and ventilation equipment can be determined first.

[0089] After determining the environmental and status information, the current speed threshold used for comparing the wind turbine motor speeds can be determined based on the environmental and status information.

[0090] For example, when the heating and ventilation equipment is first run, the start-up curve and steady-state speed range of the fan motor under standard operating conditions can be recorded, and an initial threshold can be determined based on this.

[0091] Next, during daily use, the initial threshold can be adjusted and corrected based on the determined environmental and status information, thereby determining the current speed threshold used to compare the speed of the fan motor.

[0092] For example, a ratio can be determined based on temperature, voltage, and aging degree; then, a weighted calculation is performed based on their importance to obtain the final scaling ratio parameter; based on this ratio parameter, the initial threshold can be adjusted to determine the rotational speed threshold.

[0093] After determining the speed threshold, it can be compared with the currently determined speed of the wind turbine motor to determine whether there is an abnormal speed problem in the wind turbine motor.

[0094] In some embodiments of this application, the above method may further include the following steps: Determine the status information of the heating and ventilation equipment and / or the environmental information of the environment in which the heating and ventilation equipment is located; determine the set of duration thresholds based on the status information and / or environmental information; the set of duration thresholds includes cumulative duration thresholds and protection duration thresholds.

[0095] In some embodiments, in addition to the rotation speed threshold, various duration thresholds can be determined based on status information and / or environmental information, such as cumulative duration thresholds, protection duration thresholds, etc.

[0096] For example, after determining the state information, the corresponding set of duration thresholds can be determined based on the state information. For instance, a reference duration threshold can be pre-set for each duration. When the voltage fluctuates, the reference duration thresholds are scaled proportionally to obtain the set of duration thresholds.

[0097] In another example, after determining the environmental information, the corresponding set of duration thresholds can be determined based on the environmental information. For example, if the viscosity is high at low temperatures, the cumulative duration threshold and the protection duration threshold can be set to be longer.

[0098] In another example, after determining the status information and environmental information, a ratio can be determined based on the status information and environmental information respectively. Then, a weighted calculation is performed based on the importance to obtain the final scaling ratio parameter. Based on this ratio parameter, the baseline duration threshold can be adjusted to determine the cumulative duration threshold and the protection duration threshold.

[0099] In some embodiments of this application, the above method may further include the following steps: If the accumulated duration is less than the accumulated duration threshold, and the rotation speed is not less than the rotation speed threshold, the accumulated duration is paused, and the recovery duration is started. If the recovery duration is greater than the recovery duration threshold, the heating module is controlled in normal mode, and the recovery duration is reset to zero. If the recovery duration is not greater than the recovery duration threshold, and the rotation speed is less than the rotation speed threshold, the accumulated duration continues to be counted, and the recovery duration is reset to zero. If the recovery duration is not greater than the recovery duration threshold, and the rotation speed is not less than the rotation speed threshold, the recovery duration continues to be counted. If the accumulated duration is less than the accumulated duration threshold, and the rotation speed is less than the rotation speed threshold, the accumulated duration continues to be counted.

[0100] In some embodiments, if the cumulative duration is determined to be less than the cumulative duration threshold, it can be further determined whether the current speed of the fan motor is less than the preset speed threshold, thereby determining whether the duration (i.e., cumulative duration) of the fan motor speed being less than the preset speed threshold exceeds the set value, and thus determining whether the fan motor speed is abnormal.

[0101] For example, if the current speed of the fan motor is less than the speed threshold when the cumulative duration is less than the cumulative duration threshold, the cumulative duration can continue to be calculated.

[0102] Conversely, if the current speed of the fan motor is no longer less than the speed threshold when the cumulative duration is less than the cumulative duration threshold, it can be said that the fan motor has returned to normal. At this time, the calculation of the cumulative duration can be paused and the calculation of the recovery duration can be started.

[0103] In some embodiments, when the cumulative duration is started, the pre-stored recovery duration in the device can be cleared to zero, and when the recovery duration is calculated, the recovery duration starts from 0.

[0104] After calculating the recovery time, the relationship between the recovery time and the preset recovery time threshold can be determined. The recovery time threshold can be set according to the actual situation, and this application embodiment does not limit it.

[0105] In some embodiments, if the recovery time exceeds a preset recovery time threshold, it can be determined that the fan motor has completely returned to normal. At this time, the heating module can be controlled in normal mode, i.e., controlled with the power set by the user. Alternatively, the recovery time and cumulative time can be reset, and the fan motor speed can be re-monitored to ensure it is not lower than a preset speed threshold.

[0106] In other embodiments, if the recovery time is not greater than a preset recovery time threshold, it is possible to further monitor whether the current speed of the wind turbine motor is less than the speed threshold.

[0107] For example, if the current speed of the fan motor is detected to be less than the preset speed threshold when the cumulative duration is less than the cumulative duration threshold, it indicates that the fan motor may have speed fluctuations; at this time, the cumulative duration can continue to be counted and then the duration can be reset to zero.

[0108] If the cumulative recovery time is less than the cumulative recovery time threshold, but the current speed of the wind turbine motor is still not less than the preset speed threshold, it indicates that the wind turbine motor is normal. However, the recovery time is not long enough at this point, and there may be fluctuations. Therefore, the recovery time can continue to be counted until the recovery time exceeds the preset recovery time threshold, or the current speed of the wind turbine motor becomes less than the preset speed threshold.

[0109] In some embodiments of this application, the above method may further include the following steps: When the heating module is controlled in restricted mode, if the rotation speed is not less than the rotation speed threshold, the start-up time is counted. If the start-up time is greater than the start-up time threshold, the heating module is controlled in normal mode, and the accumulated time and start-up time are reset to zero. If the start-up time is not greater than the start-up time threshold, and the rotation speed is not less than the rotation speed threshold, the start-up time continues to be counted. If the start-up time is not greater than the start-up time threshold, and the rotation speed is less than the rotation speed threshold, the accumulated time continues to be counted, and the start-up time is reset to zero.

[0110] In some embodiments, if the cumulative duration is not less than the cumulative duration threshold, after controlling the heating module in the limiting mode, it is possible to continue to detect whether the current speed of the fan motor is less than the preset speed threshold.

[0111] When the heating module is controlled in a restricted mode, the start-up time can be counted if the current speed of the fan motor is no longer less than the preset speed threshold.

[0112] After the start of the activation duration is calculated, it can be compared whether the calculated activation duration is greater than the preset activation duration threshold. The activation duration threshold can be set according to the actual situation, and this application embodiment does not limit it.

[0113] If the operating time exceeds the preset operating time threshold, it indicates that the fan motor has returned to normal; at this time, the heating module can be controlled in normal mode. Additionally, the accumulated time and operating time can be reset to zero.

[0114] If the activation duration is not greater than the preset activation duration threshold, it can be further determined whether the current speed of the fan motor is less than the preset speed threshold. If the speed is still not less than the speed threshold even if the activation duration is not greater than the activation duration threshold, the activation duration can continue to be counted.

[0115] Conversely, if the engine speed falls below the threshold speed again while the operating time is not greater than the operating time threshold, the operating time can be reset to zero, and the accumulated time can continue to be counted. Continuing to count the accumulated time means continuing to count the time based on the already counted accumulated time.

[0116] In some embodiments of this application, the above method may further include the following steps: If the protection duration is not greater than the protection duration threshold, and the rotational speed is less than the rotational speed threshold, the protection duration continues to be counted. If the protection duration is not greater than the protection duration threshold, and the rotational speed is not less than the rotational speed threshold, the cumulative duration continues to be counted, and the protection duration is then reset to zero.

[0117] In some embodiments, after calculating the protection duration, the relationship between the protection duration and a preset protection duration threshold can be compared.

[0118] If the protection duration is not greater than the protection duration threshold, it can be further determined whether the current speed of the fan motor is still less than the preset speed threshold.

[0119] If the current speed of the wind turbine motor is still less than the preset speed threshold when the protection duration is not greater than the protection duration threshold, the protection duration can continue to be calculated until the protection duration is greater than the preset protection duration threshold, or the current speed of the wind turbine motor becomes no longer less than the preset speed threshold.

[0120] Conversely, if the current speed of the fan motor becomes no less than the preset speed threshold while the protection duration is no greater than the protection duration threshold, the protection duration can be reset to zero and the cumulative duration can continue to be calculated.

[0121] Reference Figure 2 The diagram illustrates a flowchart of another control method for a heating and ventilation device according to an embodiment of this application.

[0122] First, the operating status of the heating and ventilation equipment is obtained, and then the speed of the fan motor is determined when the heating module is running.

[0123] Determine whether the current speed S of the fan motor is less than the set speed threshold S. 低 If the current speed S of the fan motor is not less than the set speed threshold S... 低 Then the working status will be retrieved again.

[0124] When the current speed S of the fan motor is less than the set speed threshold S 低 At that time, T 恢复 Clear to zero, T 累计 Start the timer.

[0125] Next, we can determine T. 累计 Is it less than the cumulative duration threshold 'a' (where 'a' is a value within 60 seconds)?

[0126] In T 累计 If the value is less than a, we can further determine whether the current rotational speed S is greater than or equal to S. 低 .

[0127] If the rotational speed S is greater than or equal to the set rotational speed threshold S 低 Start T 恢复 Time it and determine T. 恢复 Is the recovery time threshold b greater than the set recovery time (b is a value within 60 seconds)? If the rotational speed S is less than the set rotational speed threshold S... 低 Then continue to calculate T. 累计 And determine the new T 累计 Is it less than a?

[0128] If T恢复 If the value is greater than b, the fan motor is considered to be in normal operating condition, and T is set accordingly. 累计 Reset the speed to zero, and reacquire the fan motor speed. Determine if the current fan motor speed S is less than the set speed threshold S. 低 If T 恢复 Not greater than b, and the rotational speed S is still greater than or equal to the set rotational speed threshold S. 低 Then continue to calculate T. 恢复 .

[0129] T 恢复 Timing, T 累计 Pause the timer, T 恢复 When T is greater than b 累计 Clear to zero, T 恢复 When b is less than or equal to b, the current speed S of the fan motor is less than the set speed threshold S. 低 At that time, T 累计 Continue timing, T 恢复 Reset to zero.

[0130] T 累计 When a is greater than or equal to a, the heating module in the heating and ventilation equipment heats at the lowest setting.

[0131] After heating at the lowest setting, it can continue to check whether the current speed S of the fan motor is greater than or equal to the set speed threshold S. 低 .

[0132] The current speed S of the wind turbine motor is greater than or equal to the set speed threshold S. 低 At that time, T began. 开启 Time it and determine T. 开启 Does it exceed the activation duration threshold c (c is a value within a 5-minute timeframe)? If so, T can be paused. 累计 .

[0133] If T 开启 When the value is greater than c, the heating module resumes normal heating, and T is set to... 保护 T 累计 Reset the speed to zero and reacquire the fan motor speed, and monitor whether the current speed S of the fan motor is less than the set speed threshold S. 低 If T 开启 The current speed S of the fan motor is not greater than c, and is still greater than or equal to the set speed threshold S. 低 Then continue to calculate T. 开启 .

[0134] When heating is performed at the lowest setting, the current speed S of the fan motor is less than the set speed threshold S. 低 At that time, T began. 保护 Time it and determine T. 保护Does it exceed the protection duration threshold d (d is a value within 5 minutes)? If so, T can be paused. 累计 .

[0135] If T 保护 When the value is greater than d, the system enters protection mode, shutting down all heating modules and the fan motor. If T... 保护 The current speed S of the fan motor is not greater than d, and the current speed S of the fan motor is still less than the set speed threshold S. 低 Then continue to calculate T. 保护 .

[0136] Through the specific implementation steps described above, a multi-level speed monitoring logic based on time accumulation was constructed, and T was introduced. 累计 T 恢复 T 开启 T 保护 Four independent time variables, combined with the speed threshold S 低 This enables dynamic determination of the motor's operating status.

[0137] In this embodiment, a transient interference filtering mechanism is introduced, that is, when the rotational speed is lower than S... 低 However, if the duration is less than 'a', direct protection is not provided; a certain margin is left to determine whether the rotational speed is greater than or equal to 'S'. 低 And T 恢复 The state greater than b is possible, effectively filtering out transient interference during startup.

[0138] In addition, this application also introduces a tiered derating protection mechanism, that is, when the rotational speed is lower than S... 低 Furthermore, if the operation continues for more than 'a', the system will not be shut down immediately. Instead, the heating module will be reduced to its lowest setting to provide the system with a certain degree of fault tolerance and recovery window.

[0139] In this embodiment of the application, during the lowest gear operation, if the rotational speed is still lower than S 低 If the fault persists for more than time d, it is considered a serious fault, and the full shutdown protection is activated to completely eliminate the risk of overheating.

[0140] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of this application are not limited to the described order of actions, because according to the embodiments of this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of this application.

[0141] Reference Figure 3This diagram illustrates the structure of a control device for a heating and ventilation system according to an embodiment of this application. The heating and ventilation system includes a heating module and a fan module, with the fan module including a fan motor. The device may include the following modules: The speed determination module 301 is used to determine the speed of the fan motor when the heating module is running; The cumulative duration timing module 302 is used to start counting the cumulative duration when the rotational speed is less than the rotational speed threshold. The limiting module 303 is used to control the heating module in a limiting mode when the cumulative duration is not less than the cumulative duration threshold. The protection duration timing module 304 is used to start counting the protection duration if the rotation speed is less than the rotation speed threshold when the heating module is controlled in a limited mode. The protection module 305 is used to control the heating module and the fan module in protection mode when the protection duration exceeds the protection duration threshold.

[0142] In some embodiments, the apparatus further includes: The threshold determination module is used to determine the status information of the heating and ventilation equipment; based on the status information, the rotation speed threshold is determined.

[0143] In some embodiments, the apparatus further includes: The threshold determination module is used to determine the environmental information of the environment in which the heating and ventilation equipment is located; based on the environmental information, the rotation speed threshold is determined.

[0144] In some embodiments, the apparatus further includes: The threshold determination module is used to determine the status information of the heating and ventilation equipment and the environmental information of the environment in which the heating and ventilation equipment is located; based on the status information and environmental information, the rotation speed threshold is determined.

[0145] In some embodiments, the apparatus further includes: The recovery timer module is used to pause the counting of the accumulated time and start counting the recovery time if the rotational speed is not less than the rotational speed threshold when the accumulated time is less than the accumulated time threshold; if the recovery time is greater than the recovery time threshold, the heating module is controlled in normal mode and the recovery time is reset to zero; if the recovery time is not greater than the recovery time threshold and the rotational speed is less than the rotational speed threshold, the accumulated time is counted again and the recovery time is reset to zero; if the recovery time is not greater than the recovery time threshold and the rotational speed is not less than the rotational speed threshold, the recovery time is counted again; if the accumulated time is less than the accumulated time threshold and the rotational speed is less than the rotational speed threshold, the accumulated time is counted again.

[0146] In some embodiments, the apparatus further includes: The start-up duration timing module is used to start counting the start-up duration when the heating module is controlled in restricted mode, provided that the rotation speed is not less than the rotation speed threshold; if the start-up duration is greater than the start-up duration threshold, the heating module is controlled in normal mode, and the accumulated duration and start-up duration are reset to zero; if the start-up duration is not greater than the start-up duration threshold, and the rotation speed is not less than the rotation speed threshold, the start-up duration continues to be counted; if the start-up duration is not greater than the start-up duration threshold, and the rotation speed is less than the rotation speed threshold, the accumulated duration continues to be counted, and the start-up duration is reset to zero.

[0147] In some embodiments, the apparatus further includes: The protection duration reset module is used to continue counting the protection duration if the rotational speed is less than the rotational speed threshold when the protection duration is not greater than the protection duration threshold; and to continue counting the cumulative duration and reset the protection duration when the rotational speed is not less than the rotational speed threshold when the protection duration is not greater than the protection duration threshold.

[0148] In some embodiments, the apparatus further includes: The threshold determination module is used to determine the status information of the heating and ventilation equipment and / or the environmental information of the environment in which the heating and ventilation equipment is located; and to determine a set of duration thresholds based on the status information and / or environmental information; the set of duration thresholds includes a cumulative duration threshold and a protection duration threshold.

[0149] In this embodiment, the heating and ventilation equipment includes a heating module and a fan module, with the fan module including a fan motor. When the heating module is running, the fan motor speed is determined. If the speed is less than a speed threshold, the cumulative duration of the speed being less than the speed threshold is started. If the cumulative duration is not less than the cumulative duration threshold, the heating module is controlled in a limiting mode. While the heating module is controlled in limiting mode, if the speed is less than the speed threshold, a protection duration is started. If the protection duration is greater than the protection duration threshold, both the heating module and the fan module are controlled in a protection mode. This embodiment constructs a multi-level speed monitoring logic based on time accumulation, introducing independent time variables such as cumulative duration and protection duration, combined with a speed threshold, to achieve dynamic determination of the fan motor's operating status. In this embodiment, by effectively distinguishing between instantaneous speed fluctuations and continuous low-speed faults, instantaneous low-speed interference during startup is effectively filtered out, avoiding the risk of frequent equipment start-ups and shutdowns and fan motor damage. It also avoids frequent relay switching caused by brief fluctuations, improving the stability of equipment operation.

[0150] Based on the embodiments of this application, the shortcomings of insufficient anti-interference capability of existing heating and ventilation equipment can be overcome, and the problem of false alarm faults caused by instantaneous fluctuations in rotation speed can be solved.

[0151] This application embodiment also provides a heating and ventilation device, including a heating module, a fan module, and a control module. The fan module includes a fan motor, and the control module is used to execute the control method of the heating and ventilation device described above.

[0152] This application also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the control method of the heating and ventilation equipment described above.

[0153] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the above-described control method for the heating and ventilation equipment.

[0154] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0155] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0156] Those skilled in the art will understand that embodiments of this application can be provided as methods, apparatus, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0157] This application describes embodiments with reference to flowchart illustrations and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of this application. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0158] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0159] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0160] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0161] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0162] The above provides a detailed description of the heating and ventilation equipment and its control method, device, electronic equipment, and medium. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A control method for a heating and ventilation device, characterized in that, The heating and ventilation equipment includes a heating module and a fan module, the fan module including a fan motor, and the method includes: When the heating module is operating, determine the rotational speed of the fan motor; When the rotational speed is less than the rotational speed threshold, the cumulative duration of the rotational speed being less than the rotational speed threshold is started; If the cumulative duration is not less than the cumulative duration threshold, the heating module is controlled in a limiting mode; When the heating module is controlled in the aforementioned limiting mode, if the rotation speed is less than the rotation speed threshold, the protection time is started. If the protection duration exceeds the protection duration threshold, the heating module and the fan module are controlled in protection mode. If the accumulated duration is less than the accumulated duration threshold, and the rotation speed is not less than the rotation speed threshold, the accumulated duration is paused, and the recovery duration is started. If the recovery duration is greater than the recovery duration threshold, the heating module is controlled in normal mode, and the recovery duration is reset to zero. If the recovery duration is not greater than the recovery duration threshold, and the rotation speed is less than the rotation speed threshold, the accumulated duration is continued, and the recovery duration is reset to zero. If the recovery duration is not greater than the recovery duration threshold, and the rotation speed is not less than the rotation speed threshold, the recovery duration is continued. If the accumulated duration is less than the accumulated duration threshold, and the rotation speed is less than the rotation speed threshold, the accumulated duration is continued. When the heating module is controlled in the restricted mode, if the rotation speed is not less than the rotation speed threshold, the start-up time is calculated; if the start-up time is greater than the start-up time threshold, the heating module is controlled in normal mode, and the accumulated time and the start-up time are reset to zero; if the start-up time is not greater than the start-up time threshold, and the rotation speed is not less than the rotation speed threshold, the start-up time is calculated again; if the start-up time is not greater than the start-up time threshold, and the rotation speed is less than the rotation speed threshold, the accumulated time is calculated again, and the start-up time is reset to zero. If the protection duration is not greater than the protection duration threshold, and the rotational speed is less than the rotational speed threshold, the protection duration continues to be calculated; if the protection duration is not greater than the protection duration threshold, and the rotational speed is not less than the rotational speed threshold, the cumulative duration continues to be calculated, and the protection duration is reset to zero.

2. The method according to claim 1, characterized in that, The method further includes: Determine the status information of the heating and ventilation equipment; The rotational speed threshold is determined based on the status information.

3. The method according to claim 1, characterized in that, The method further includes: Determine the environmental information of the environment in which the heating and ventilation equipment is located; The rotational speed threshold is determined based on the environmental information.

4. The method according to claim 1, characterized in that, The method further includes: Determine the status information of the heating and ventilation equipment, as well as the environmental information of the environment in which the heating and ventilation equipment is located; The rotational speed threshold is determined based on the status information and the environmental information.

5. The method according to claim 1, characterized in that, The method further includes: Determine the status information of the heating and ventilation equipment and / or the environmental information of the environment in which the heating and ventilation equipment is located; Based on the status information and / or the environmental information, a set of duration thresholds is determined; the set of duration thresholds includes the cumulative duration threshold and the protection duration threshold.

6. A heating and ventilation device, characterized in that, It includes a heating module, a fan module, and a control module, wherein the fan module includes a fan motor, and the control module is used to execute the control method of the heating and ventilation equipment as described in any one of claims 1 to 5.

7. A control device for a heating and ventilation system, characterized in that, The heating and ventilation equipment includes a heating module and a fan module, the fan module including a fan motor, and the device includes: A speed determination module is used to determine the speed of the fan motor when the heating module is in operation; The cumulative duration timing module is used to start counting the cumulative duration when the rotational speed is less than the rotational speed threshold. A limiting module is used to control the heating module in a limiting mode when the cumulative duration is not less than a cumulative duration threshold. The protection duration timing module is used to start timing the protection duration if the rotation speed is less than the rotation speed threshold when the heating module is controlled in the restricted mode. A protection module is used to control the heating module and the fan module in protection mode when the protection duration exceeds the protection duration threshold. The recovery time timing module is configured to: if the cumulative duration is less than the cumulative duration threshold and the rotational speed is not less than the rotational speed threshold, pause the counting of the cumulative duration and start counting the recovery duration; if the recovery duration is greater than the recovery duration threshold, control the heating module in normal mode and reset the recovery duration; if the recovery duration is not greater than the recovery duration threshold and the rotational speed is less than the rotational speed threshold, continue counting the cumulative duration and reset the recovery duration; if the recovery duration is not greater than the recovery duration threshold and the rotational speed is not less than the rotational speed threshold, continue counting the recovery duration; if the cumulative duration is less than the cumulative duration threshold and the rotational speed is less than the rotational speed threshold, continue counting the cumulative duration. The activation duration timing module is used to: when the heating module is controlled in the restricted mode, start counting the activation duration if the rotation speed is not less than the rotation speed threshold; when the activation duration is greater than the activation duration threshold, control the heating module in normal mode and reset the accumulated duration and the activation duration to zero; when the activation duration is not greater than the activation duration threshold, continue counting the activation duration if the rotation speed is not less than the rotation speed threshold; when the activation duration is not greater than the activation duration threshold, continue counting the accumulated duration if the rotation speed is less than the rotation speed threshold and reset the activation duration to zero. The protection duration reset module is used to continue counting the protection duration if the rotational speed is less than the rotational speed threshold when the protection duration is not greater than the protection duration threshold; and to continue counting the cumulative duration and reset the protection duration when the rotational speed is not less than the rotational speed threshold when the protection duration is not greater than the protection duration threshold.

8. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program, when executed by the processor, implements the control method of the heating and ventilation equipment as described in any one of claims 1 to 5.

9. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the control method for the heating and ventilation equipment as described in any one of claims 1 to 5.

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