Range hood control method, control device, control system and storage medium

Abstract

The invention discloses a range hood control method, a range hood control device, a range hood control system and a computer readable storage medium, and belongs to the field of kitchen appliances. The range hood control method is applied to the range hood. The range hood comprises an air inlet, an infrared sensor module and a heating module. The heating module is used for heating a preset area of the air inlet. The range hood control method comprises the steps that an initial reflection value, detected by an infrared sensor module, corresponding to an air inlet is obtained; after the operation of the range hood is finished, a current reflection value corresponding to the air inlet detected by the infrared sensor module is obtained; and controlling the working state of the heating module based on the initial reflection value and the current reflection value. Thus, the heating module can be accurately controlled to heat the preset area of the air inlet, residual oil dirt attached to the air inlet is rapidly decomposed and melted, the problems of oil dirt accumulation and dripping are effectively solved, and lasting cleanliness of the air inlet and efficient operation of the range hood are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to a range hood control method, a range hood control device, a range hood control system and a computer readable storage medium. BACKGROUND

[0002] At present, with the diversity of cooking recipes, more and more oil fume is generated in the cooking process. As an indispensable appliance in modern kitchens, the range hood plays a crucial role in the entire cooking process. With the increase of the working time of the range hood, the oil dirt accumulation in the air inlet is also increasing, and the phenomenon of oil dirt dripping caused by cooling and condensation is becoming more and more frequent. SUMMARY

[0003] The range hood control method, the range hood control device, the range hood control system and the computer readable storage medium provided by the present application can solve at least one of the above technical problems.

[0004] The range hood control method of the present application is applied to a range hood, the range hood comprising an air inlet, an infrared sensor module and a heating module, the infrared sensor module comprising an infrared emitter and an infrared receiver, wherein the infrared emitted by the infrared emitter is reflected to the infrared receiver through the air inlet, the heating module is used for heating a predetermined area of the air inlet, and the range hood control method comprises: obtaining an initial reflection value corresponding to the air inlet detected by the infrared sensor module; after the range hood stops working, obtaining a current reflection value corresponding to the air inlet detected by the infrared sensor module; controlling the working state of the heating module based on the initial reflection value and the current reflection value.

[0005] The range hood control method of the present application obtains the current reflection value corresponding to the air inlet detected by the infrared sensor module after the range hood stops working, and controls the working state of the heating module based on the initial reflection value and the current reflection value. In this way, the heating module can accurately heat the predetermined area of the air inlet, rapidly decompose and melt the residual oil dirt attached to the air inlet, effectively solve the problem of oil dirt accumulation and dripping, and realize the persistent cleanliness of the air inlet and the efficient operation of the range hood.

[0006] In some embodiments, the range hood control method further comprises: judging whether the range hood is used by a user for the first time; obtaining the initial reflection value corresponding to the air inlet detected by the infrared sensor module, comprising: when the range hood is used by a user for the first time, obtaining a plurality of first reflection values corresponding to the air inlet detected by the infrared sensor module multiple times; The average of the plurality of first reflection values is taken as an initial reflection value.

[0007] In the above technical solution, when the range hood is powered on for the first time, the reflection values obtained through multiple detections are averaged to obtain an initial reflection value, so as to improve the accuracy and reliability of the initial reflection value.

[0008] In some embodiments, after the range hood stops working, a current reflection value corresponding to the air inlet detected by the infrared sensor module is obtained, including: After the range hood stops working, the heating module is controlled to work for a first predetermined time period; After the heating module works for the first predetermined time period, a current reflection value corresponding to the air inlet detected by the infrared sensor module is obtained.

[0009] In the above technical solution, during the key window period when the oil stains are in a liquid state and have not yet solidified after each cooking, the cleaning work is actively performed, which not only reduces the cleaning cost to a minimum, but also greatly improves the cleaning efficiency, and fundamentally changes the maintenance mode of the range hood. In addition, based on the initial reflection value and the current reflection value, the oil stain condition of the air inlet can be accurately judged, so that the oil stains can be completely cleaned by controlling the working state of the heating module, and the air inlet can be kept clean and the range hood can be operated efficiently.

[0010] In some embodiments, after the heating module works for the first predetermined time period, a current reflection value corresponding to the air inlet detected by the infrared sensor module is obtained, including: After the heating module works for the first predetermined time period, a plurality of second reflection values corresponding to the air inlet detected by the infrared sensor module through multiple detections are obtained; The average of the plurality of second reflection values is taken as the current reflection value.

[0011] In the above technical solution, after the heating module works for the first predetermined time period, the reflection values obtained through multiple detections are averaged to obtain a current reflection value, so as to improve the accuracy and reliability of the current reflection value, so as to more accurately control the working of the heating module, and realize efficient cleaning and long-term stable operation of the air inlet of the range hood.

[0012] In some embodiments, based on the initial reflection value and the current reflection value, the working state of the heating module is controlled, including: It is judged whether the current reflection value is less than the initial reflection value; When the current reflection value is less than the initial reflection value, it is judged whether the current reflection value is less than or equal to a previous reflection value corresponding to a previous period of the current reflection value; When the current reflection value is greater than the previous reflection value, the heating module is controlled to work for a second predetermined time period, and the step of obtaining the current reflection value corresponding to the air inlet detected by the infrared sensor module is re-executed.

[0013] In the technical solution, the working time of the heating module is accurately controlled by comparing the initial reflection value and the current reflection value and the previous reflection value corresponding to the previous period, efficient cleaning of the air inlet is achieved, and long-term stable operation of the range hood is ensured.

[0014] In some embodiments, before controlling the heating module to work for the second predetermined time length, the range hood control method further includes: determining the second predetermined time length based on the preset time length, the preset coefficient, the initial reflection value and the current reflection value; wherein the preset coefficient is greater than zero.

[0015] In the technical solution, the second predetermined time length is accurately determined by comprehensively considering the preset time length, the preset coefficient, the initial reflection value and the current reflection value, the working time of the heating module is dynamically and accurately adjusted, the cleaning effect is improved, the energy consumption is reduced, and the overall performance and user experience of the range hood are improved.

[0016] In some embodiments, after controlling the heating module to work for the second predetermined time length, the range hood control method further includes: updating the first predetermined time length based on the second predetermined time length.

[0017] In the technical solution, the first predetermined time length is updated based on the second predetermined time length, so that the preliminary heating time can be automatically adjusted according to the actual cleaning situation, the cleaning efficiency is improved, the energy consumption is reduced, and the adaptability of the range hood to different use environments is enhanced.

[0018] The range hood control device of the embodiments of the present application is applied to a range hood, the range hood includes an air inlet, an infrared sensor module and a heating module, the infrared sensor module includes an infrared emitter and an infrared receiver, wherein the infrared emitted by the infrared emitter is reflected to the infrared receiver through the air inlet, the heating module is used for heating a predetermined area of the air inlet, and the range hood control device includes: a first acquisition module configured to acquire an initial reflection value corresponding to the air inlet detected by the infrared sensor module; a second acquisition module configured to acquire a current reflection value corresponding to the air inlet detected by the infrared sensor module after the range hood stops working; a control module configured to control a working state of the heating module based on the initial reflection value and the current reflection value.

[0019] The range hood control system of the embodiments of the present application includes one or more processors and a memory, the memory stores a computer program, and the computer program is executed by the processor to implement the range hood control method of any of the above embodiments.

[0020] The computer readable storage medium of the embodiment of the present application has a computer program stored thereon, and the program is executed by a processor to implement the smoke machine control method of any of the above embodiments.

[0021] The smoke machine control method, smoke machine control device, smoke machine control system and computer readable storage medium of the embodiment of the present application obtain the current reflection value corresponding to the air inlet detected by the infrared sensor module after the operation of the range hood is completed, and control the working state of the heating module based on the initial reflection value and the current reflection value. In this way, the heating module can accurately heat the predetermined area of the air inlet, rapidly decompose and melt the residual oil stains attached to the air inlet, effectively solve the problem of oil stain accumulation and dripping, and realize the persistent cleanliness of the air inlet and the efficient operation of the range hood.

[0022] Additional aspects and advantages of the embodiments of the present application will be in part apparent and in part pointed out hereinafter in the description of the embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which: Figure 1 is a flowchart of the smoke machine control method of some embodiments of the present application; Figure 2 is a schematic diagram of the modules of the range hood of some embodiments of the present application; Figure 3 is a flowchart of the smoke machine control method of some embodiments of the present application; Figure 4 is a schematic diagram of the modules of the smoke machine control device of some embodiments of the present application; Figure 5 is a schematic diagram of the modules of the smoke machine control system of some embodiments of the present application; Figure 6 is a schematic diagram of the connection state of the computer readable storage medium and the processor of some embodiments of the present application.

[0024] REFERENCE NUMERALS Smoke machine control device 100, first acquisition module 10, second acquisition module 20, control module 30, smoke machine control system 200, processor 210, memory 220, computer readable storage medium 300, computer program 310, processor 320, range hood 1000, infrared sensor module 1001, heating module 1002, control system 1003. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be further described below with reference to the drawings. The same or similar numerals in the accompanying drawings will denote the same or similar elements or elements having the same or similar functions throughout. In addition, the embodiments of the present application described below with reference to the drawings are exemplary and are for the purpose of explaining the embodiments of the present application, and should not be understood as limiting the present application.

[0026] Referring to Figures 1 to 3 The smoke machine control method of the embodiments of the present application is applied to the extractor hood 1000. The extractor hood 1000 includes an air inlet, an infrared sensor module 1001 and a heating module 1002. The infrared sensor module 1001 includes an infrared emitter and an infrared receiver. The infrared emitted by the infrared emitter is reflected to the infrared receiver through the air inlet. The heating module 1002 is used to heat a predetermined area of the air inlet. The smoke machine control method includes: S10: obtaining an initial reflection value corresponding to the air inlet detected by the infrared sensor module 1001; S20: obtaining a current reflection value corresponding to the air inlet detected by the infrared sensor module 1001 after the extractor hood 1000 stops working; S30: controlling the working state of the heating module 1002 based on the initial reflection value and the current reflection value.

[0027] The smoke machine control method of the embodiments of the present application obtains the current reflection value corresponding to the air inlet detected by the infrared sensor module 1001 after the extractor hood 1000 stops working, and controls the working state of the heating module 1002 based on the initial reflection value and the current reflection value. In this way, the heating module 1002 can accurately heat the predetermined area of the air inlet, rapidly decompose and melt the residual oil stains attached to the air inlet, effectively solve the problem of oil stain accumulation and dripping, and achieve persistent cleaning of the air inlet and efficient operation of the extractor hood 1000.

[0028] Specifically, referring to Figure 2 The extractor hood 1000 can include an air inlet, an infrared sensor module 1001, a heating module 1002 and a control system 1003.

[0029] The extractor hood 1000 sucks in kitchen fume through the air inlet. It can be understood that as the working time of the extractor hood 1000 increases, the oil stains accumulated on the air inlet will increase, and the phenomenon of oil stains dripping due to cooling and condensation will also become more and more frequent.

[0030] The infrared sensor module 1001 serves as a detection mechanism, and the infrared sensor module 1001 is electrically connected with the control system 1003. The infrared sensor module 1001 includes an infrared emitter and an infrared receiver. The infrared rays emitted by the infrared emitter are reflected to the infrared receiver through the air inlet. For example, the infrared emitter can emit infrared rays of a specific wavelength, which are reflected after irradiating the surface of the air inlet. The reflected infrared rays are received by the infrared receiver. Since the state of the surface of the air inlet, such as whether there is oil stain, the thickness of the oil stain, etc., will affect the reflection of the infrared rays, the oil stain related information of the air inlet can be obtained by detecting the reflected infrared rays, and then the working state of the heating module 1002 can be accurately controlled.

[0031] In addition, the infrared sensor module 1001 can also include a signal amplification circuit. In some embodiments, a wind box is arranged in the air duct of the air inlet, and the infrared sensor module 1001 composed of the infrared emitter, the infrared receiver and the signal amplification circuit can be installed in the air duct. The infrared emitter emits infrared rays towards the inside of the wind box, and the infrared receiver receives the reflected infrared rays. After the infrared signal corresponding to the infrared rays is converted into a digital signal, it is amplified by the signal amplification circuit and input to the control system 1003.

[0032] The heating module 1002 serves as an execution mechanism, and the heating module 1002 is electrically connected with the control system 1003. The heating module 1002 is used to heat a predetermined area of the air inlet. In some embodiments, the heating module 1002 can adopt a heating film. The heating film is attached to the outside of the wind box, and the predetermined area is the wind box area. When there is oil accumulation in the wind box of the air inlet, appropriate heat can be generated by the heating module 1002 to rapidly decompose and melt the oil, thereby achieving the purpose of cleaning the air inlet.

[0033] The control system 1003 can be composed of a switch board, and the control system 1003 is electrically connected with an external power supply. The execution subject of the range hood control method of the present application can be the control system 1003. The control system 1003 can judge based on the initial reflection value and the current reflection value corresponding to the air inlet. For example, when there is oil accumulation or the thickness of the oil stain increases, the reflectivity of the infrared rays decreases, and the control system 1003 can determine whether there is oil accumulation or oil droplet condensation, etc., so as to control the working time length of the heating module 1002. When the heating module 1002 works, the accumulated oil will melt and flow along the wind box from the air inlet to the oil cup.

[0034] The working process of the range hood control method of the present application will be introduced in combination with specific examples.

[0035] In S10, an initial reflection value corresponding to the air inlet detected by the infrared sensor module 1001 is obtained. For example, the infrared sensor module 1001 can be started to detect the initial reflection value corresponding to the air inlet in the initial state of the range hood 1000 (such as the first installation, restart after a long period of non-use, etc.). The initial reflection value reflects the infrared reflection of the air inlet when there is no or little oil accumulation, and can be used as a reference for subsequent judgment of the oil condition of the air inlet and provide a standard for subsequent comparison. For example, the air inlet of the newly installed range hood 1000 is very clean, and the detected reflection value at this time is the initial ideal state value.

[0036] In S20, after the range hood 1000 is turned off, a current reflection value corresponding to the air inlet detected by the infrared sensor module 1001 is obtained. For example, the infrared sensor module 1001 can be started again to detect the current reflection value corresponding to the air inlet after the range hood 1000 completes a working cycle (i.e., completes the oil smoke suction and exhaust work in a cooking process). It can be understood that during the operation of the range hood 1000, the air inlet will continuously suck in oil smoke, and the oil stain will gradually adhere to the surface of the air inlet, causing the optical properties of the surface of the air inlet to change, thereby affecting the reflection of infrared rays. Therefore, the current reflection value and the initial reflection value may be different, and the difference reflects the accumulation of oil stains on the air inlet. For example, after a long period of high oil smoke cooking, the air inlet accumulates a large amount of oil stains, and the current reflection value detected at this time will be smaller than the initial reflection value.

[0037] In S30, the working state of the heating module 1002 is controlled based on the initial reflection value and the current reflection value. For example, the current reflection value is compared with the initial reflection value, and if the current reflection value is significantly smaller than the initial reflection value, it indicates that there is a large amount of oil stain accumulation on the air inlet. Because the presence of oil stains will reduce the reflection ability of the surface of the air inlet to infrared rays, resulting in a decrease in the intensity of the reflected infrared rays received and a decrease in the reflection value. At this time, the heating module 1002 is controlled to start working to heat the predetermined area of the air inlet. During the heating process, the oil stains will gradually decompose and melt due to the increase in temperature. For example, the heat generated by the heating module 1002 can cause the solid oil stains to become liquid or even gaseous, thereby separating from the surface of the air inlet.

[0038] In the embodiments of the present application, the reflection value of the air inlet is detected by the infrared sensor module 1001, which can accurately judge the accumulation of oil stains on the air inlet, so as to control the heating module 1002 to accurately heat the predetermined area of the air inlet. The heat generated by the heating module 1002 can rapidly decompose and melt the residual oil stains adhering to the air inlet, effectively solve the problem of oil stain accumulation and dripping, and realize the persistent cleanliness of the air inlet and the efficient operation of the range hood 1000.

[0039] Please refer to Figure 3In some embodiments, the range hood control method further comprises: determining whether the range hood 1000 is used by the user for the first time; obtaining an initial reflection value corresponding to the air inlet detected by the infrared sensor module 1001, comprising: when the range hood 1000 is used by the user for the first time, obtaining a plurality of first reflection values corresponding to the air inlet detected by the infrared sensor module 1001 multiple times; taking the average of the plurality of first reflection values as the initial reflection value.

[0040] It can be understood that in the range hood control method, it is crucial to accurately obtain the initial reflection value of the air inlet. The initial reflection value serves as a reference for subsequent determination of the oil accumulation condition of the air inlet, directly affecting the control of the working state of the heating module 1002, and further relating to whether the oil stain on the air inlet can be effectively removed and the efficient operation of the range hood 1000 is maintained. However, in actual application, due to various factors (such as sensor error, environmental interference, etc.), the reflection value obtained by single detection may have certain deviation. Therefore, in the present application, when the range hood 1000 is used by the user for the first time, the reflection values obtained by multiple detections are taken and the average is taken as the initial reflection value, so as to improve the accuracy and reliability of the initial reflection value.

[0041] Specifically, first determine whether the range hood 1000 is in the state of being used by the user for the first time. This determination can be achieved by the storage record inside the range hood 1000. For example, the range hood 1000 can be provided with a flag, which is in an initial state (indicating that it has not been used for the first time) when it is shipped. When the user first turns on the power of the range hood 1000, the control system 1003 detects the state of the flag and confirms that it is used for the first time, and then modifies the flag (indicates that it has been used for the first time) for subsequent determination. In this way, it can be accurately determined whether the range hood 1000 is used for the first time, providing a basis for subsequent operation of obtaining the initial reflection value.

[0042] When it is determined that the range hood 1000 is used by the user for the first time, the infrared sensor module 1001 is started to detect the air inlet multiple times. Each time, the infrared emitter emits infrared rays, which are reflected by the air inlet and received by the infrared receiver, thereby obtaining a reflection value corresponding to the air inlet. In order to obtain more accurate data, multiple detections can be performed, such as 5 times, 10 times, etc., to obtain a plurality of first reflection values. Multiple detections can reduce the deviation of the reflection value caused by accidental factors such as sensor instantaneous error and environmental light interference.

[0043] The average value of the obtained multiple first reflection values is calculated, and the average value is taken as the initial reflection value of the air inlet. For example, 5 detections are performed, and the 5 first reflection values are L 01 , L 02 , L 03 , L 04 , L 05 , and the initial reflection value A L0 is calculated according to the formula: A L0 = (L 01 + L 02 + L 03 + L 04 + L 05 ) / 5. By taking the average value, the influence of individual abnormal values can be eliminated, and the initial reflection value can more accurately reflect the true reflection of the air inlet when there is no or little oil accumulation, thereby providing a reliable basis for subsequent control of the heating module 1002 based on the reflection value difference.

[0044] Please refer to Figure 3 , in some embodiments, after the operation of the range hood 1000 is completed, the current reflection value of the air inlet detected by the infrared sensor module 1001 is obtained, including: After the operation of the range hood 1000 is completed, the heating module 1002 is controlled to work for a first predetermined time period; After the heating module 1002 works for a first predetermined time period, the current reflection value of the air inlet detected by the infrared sensor module 1001 is obtained.

[0045] It can be understood that in the use process of the range hood 1000, the air inlet will gradually accumulate oil stains, affecting its oil smoke suction and exhaust efficiency, and even causing oil stains to drop and pollute the kitchen environment. In order to effectively solve this problem, the application embodiment controls the heating module 1002 to work for a first predetermined time period after each operation of the range hood 1000 to preliminarily clean the oil stains, and then obtains the current reflection value, so as to control the working state of the heating module 1002 again based on the initial reflection value and the current reflection value. Through this way, the oil stains can be actively cleaned in the key window period when the oil stains are in liquid state and have not yet solidified after each cooking, which not only reduces the cleaning cost to the minimum, but also greatly improves the cleaning efficiency, and fundamentally changes the maintenance mode of the range hood 1000. In addition, based on the initial reflection value and the current reflection value, the oil stain condition of the air inlet can be accurately judged, so as to completely clean the oil stains by controlling the working state of the heating module 1002 again, thereby realizing the persistent cleaning of the air inlet and the efficient operation of the range hood 1000.

[0046] Specifically, when the one-time cooking process is completed, and the range hood 1000 completes the task of absorbing and exhausting oil fumes, it is determined that the work of the range hood 1000 is completed. At this time, the control system 1003 controls the heating module 1002 to start working and lasts for a first predetermined time. It should be noted that when the range hood 1000 is used by the user for the first time, the first predetermined time can be a preset time, that is, a default heating time t1. When the range hood 1000 is not used by the user for the first time, the first predetermined time can be equal to the second predetermined time T n The heating module 1002 works for a first predetermined time, which can play a role in preliminary removal of oil stains.

[0047] After the heating module 1002 works for a first predetermined time, the control system 1003 starts the infrared sensor module 1001 to detect the air inlet and obtain the current reflection value corresponding to the air inlet. The infrared emitter in the infrared sensor module 1001 emits infrared rays, which are reflected after irradiating the surface of the air inlet. The reflected infrared rays are received by the infrared receiver. Through detection of the received infrared intensity and other information, the corresponding reflection value is converted. Thereafter, based on the initial reflection value and the current reflection value, the oil stain condition of the air inlet is accurately determined to completely remove the oil stains by controlling the working state of the heating module 1002, so as to realize the persistent cleanliness of the air inlet and the efficient operation of the range hood 1000.

[0048] Please refer to Figure 3 In some embodiments, after the heating module 1002 works for a first predetermined time, the current reflection value corresponding to the air inlet detected by the infrared sensor module 1001 is obtained, including: After the heating module 1002 works for a first predetermined time, a plurality of second reflection values corresponding to the air inlet detected by the infrared sensor module 1001 are obtained; The average of the plurality of second reflection values is taken as the current reflection value.

[0049] It can be understood that in the range hood control method, accurately obtaining the current reflection value of the air inlet is crucial for judging the oil stain accumulation condition and reasonably controlling the heating module 1002. However, in actual application, due to various factors (such as sensor error, environmental interference, etc.), the reflection value obtained by single detection may have certain deviation. Therefore, the embodiment of the present application obtains the reflection values detected multiple times and takes the average as the current reflection value after the heating module 1002 works for a first predetermined time, so as to improve the accuracy and reliability of the current reflection value, thereby more accurately controlling the work of the heating module 1002, and realizing the efficient cleaning and long-term stable operation of the air inlet of the range hood 1000.

[0050] Specifically, when the range hood 1000 completes work, the heating module 1002 works for a first predetermined length of time according to a preset program, and the control system 1003 triggers the infrared sensor module 1001 to start detecting the air inlet.

[0051] After the infrared sensor module 1001 starts detection, multiple independent detection operations are performed. During each detection, the infrared emitter emits infrared rays, which are reflected by the air inlet and received by the infrared receiver, thereby obtaining a reflection value corresponding to the air inlet. In order to obtain more accurate data, multiple detections can be performed, such as 5 times, 10 times, etc., to obtain multiple second reflection values. Multiple detections can reduce the reflection value deviation caused by sensor instantaneous error, environmental light interference, and other accidental factors.

[0052] The multiple second reflection values obtained are averaged to obtain an average value as the current reflection value of the air inlet. For example, 5 detections are performed, and the 5 second reflection values are represented as L n1 , L n2 , L n3 , L n4 , and L n5 respectively. The calculation formula of the current reflection value A Ln is: A Ln = (L n1 + L n2 + L n3 + L n4 + L n5 ) / 5. By taking the average value, the influence of individual abnormal values can be eliminated, and the current reflection value can more accurately reflect the true reflection of the air inlet after the heating module 1002 works, providing a reliable basis for subsequent control of the heating module 1002 based on reflection value difference.

[0053] Please refer to Figure 3 , in some embodiments, based on the initial reflection value and the current reflection value, the working state of the heating module 1002 is controlled, including: determining whether the current reflection value is less than the initial reflection value; when the current reflection value is less than the initial reflection value, determining whether the current reflection value is less than or equal to a previous reflection value corresponding to a previous period of the current reflection value; when the current reflection value is greater than the previous reflection value, controlling the heating module 1002 to work for a second predetermined length of time, and re-executing the step of obtaining the current reflection value of the air inlet corresponding to the detection of the infrared sensor module 1001.

[0054] It is understandable that during the operation of the range hood 1000, grease will gradually accumulate at the air inlet. The presence of grease will affect the suction and exhaust efficiency of the range hood 1000 and may also cause grease to drip and pollute the kitchen environment. In order to clean the air inlet in a timely and effective manner, it is necessary to accurately judge the degree of grease accumulation and control the working state of the heating module 1002 accordingly. The embodiment of this application compares the initial reflection value (the reflection value of the air inlet when there is no grease or very little grease after the initial installation of the range hood 1000 or after thorough cleaning) with the current reflection value (the reflection value of the air inlet after the range hood 1000 has been used for a period of time and the heating module 1002 has been working for a first predetermined period of time), and compares it with the previous reflection value corresponding to the previous cycle, so as to accurately control the working time of the heating module 1002, achieve efficient cleaning of the air inlet, and ensure the long-term stable operation of the range hood 1000.

[0055] Specifically, the control system 1003 first acquires the initial reflection value A. L0 and the current reflection value A Ln Then the initial reflection value A L0 Compared with the current reflection value A Ln Compare them. If the current reflection value A Ln Less than the initial reflection value A L0 A Ln <A L0 This indicates that a certain amount of oil has accumulated at the air inlet. Because oil reflects infrared light differently than a clean surface, oil will reduce the reflectivity.

[0056] At the current reflection value A Ln Less than the initial reflection value A L0 In this case, the control system 1003 further obtains the current reflection value A. Ln The previous reflection value A corresponding to the previous cycle Ln-1 It can be understood that the process of controlling the heating module 1002 to operate for the second predetermined duration is a cyclical step, with the previous reflection value A... Ln-1 This refers to the current reflection value re-acquired after the second predetermined time since the heating module 1002 last operated (see the example below for details). It is compared with the current reflection value A. Ln Similarly, the previous reflection value A Ln-1 Alternatively, multiple measurements can be taken and the average value calculated. At the current reflectance value A... Ln Not less than the initial reflection value A L0 In this case, the work is finished.

[0057] The current reflection value A Ln Compared with the previous reflection value A Ln-1 Compare them. If the current reflection value A Ln Greater than the previous reflection value A Ln-1(i.e. Figure 3 If the value is less than or equal to (no), it indicates that the oil stain cleaning has been improved, resulting in an increase in the reflectance value. At this time, the control system 1003 controls the heating module 1002 to work for a second predetermined time T. n Second scheduled duration T n The duration is greater than the preset duration t1. By operating the heating module 1002 for a second preset duration, a longer heating time can be used to soften and decompose the oil stains, thereby achieving a better cleaning effect. If the current reflection value A... Ln Less than or equal to the previous reflection value A Ln-1 If so, return to the step of determining whether the infrared sensor module 1001 is faulty (details will be introduced later).

[0058] After the heating module 1002 has been operating for a second predetermined period of time, the control system 1003 re-executes the step of acquiring the current reflection value of the air inlet detected by the infrared sensor module 1001. By re-detecting the reflection value of the air inlet after being heated and cleaned by the heating module 1002, the cleaning effect can be judged. If the cleaning effect is not ideal, that is, if the re-acquired current reflection value is still low, the heating module 1002 is controlled to continue operating.

[0059] Please see Figure 3 The following example uses a 3-cycle process: After the range hood 1000 finishes working, the heating module 1002 is controlled to heat for a preset time t1. After the heating module 1002 heats for a preset time t1, the current reflection value A corresponding to the air inlet detected by the infrared sensor module 1001 is obtained. L1 ; Determine the current reflection value A L1 Is it less than the initial reflection value A? L0 ; If the current reflection value A L1 Less than the initial reflection value A L0 Then determine the current reflection value A. L1 Is it less than or equal to the current reflection value A? L1 The previous reflection value corresponding to the previous cycle (there is no previous cycle at this time, so this step can be skipped), directly controls the heating module 1002 to heat according to the working time T1; After the heating module 1002 heats up for the working time T1, the current reflection value A corresponding to the air inlet detected by the infrared sensor module 1001 is obtained. L2 ; Determine the current reflection value A L2 Is it less than the initial reflection value A? L0 ; If the current reflection value AL2 the initial reflection value A L0 , the current reflection value A L2 is less than or equal to the previous reflection value A L2 corresponding to the previous period of the current reflection value A L1 . If the current reflection value A L2 is greater than the previous reflection value A L2 corresponding to the previous period of the current reflection value A L1 , the heating module 1002 is controlled to heat for the working duration T2. After the heating module 1002 heats for the working duration T2, the current reflection value A L3 corresponding to the air inlet detected by the infrared sensor module 1001 is obtained. It is determined whether the current reflection value A L3 is less than the initial reflection value A L0 . If the current reflection value A L3 is less than the initial reflection value A L0 , it is determined whether the current reflection value A L3 is less than or equal to the previous reflection value A L3 corresponding to the previous period of the current reflection value A L2 . If the current reflection value A L3 is greater than the previous reflection value A L3 corresponding to the previous period of the current reflection value A L2 , the heating module 1002 is controlled to heat for the working duration T3.

[0060] Until the current reflection value A Ln is not less than the initial reflection value A L0 , the heating ends.

[0061] In this way, the working state of the heating module 1002 is controlled based on the comparison and determination of multiple reflection values, forming a closed-loop control logic. By continuously obtaining and comparing the reflection values, the system can timely adjust the control strategy to adapt to the changes in the oil accumulation at the air inlet, thereby enhancing the stability and reliability of the system.

[0062] In some embodiments, before controlling the heating module 1002 to work for the second predetermined duration, the range hood control method further comprises: determining the second predetermined duration based on the preset duration, the preset coefficient, the initial reflection value, and the current reflection value; wherein the preset coefficient is greater than zero.

[0063] It can be understood that during the operation of the range hood 1000, the accumulation degree of oil stains at the air inlet will be different due to factors such as use frequency, cooking method, kitchen environment, etc. The heating module 1002 is a key component for cleaning the air inlet, and the reasonable setting of the working time length (second predetermined time length) is crucial for effective cleaning of oil stains, ensuring the performance of the range hood 1000, and saving energy. The traditional fixed time length control method cannot adapt to the cleaning needs in different situations, which may lead to insufficient cleaning or excessive cleaning. The embodiments of the present application can more accurately determine the second predetermined time length by comprehensively considering the preset time length (default heating time length), the preset coefficient, the initial reflection value (initial state of the air inlet), and the current reflection value (current oil stain state of the air inlet), to achieve dynamic and accurate adjustment of the working time length of the heating module 1002, improve the cleaning effect, reduce energy consumption, and improve the overall performance and user experience of the range hood 1000.

[0064] Specifically, the second predetermined time length can be determined by the following formula: T n =t1+a*(A L0 -A Ln ) Where T n is the second predetermined time length, t1 is the preset time length, a is the preset coefficient, A L0 is the initial reflection value, and A Ln is the current reflection value.

[0065] The preset coefficient is a constant greater than zero. The value of the preset coefficient can be set according to the model, performance, and actual use environment of the range hood 1000, etc. Different preset coefficients make the second predetermined time length sensitive to the difference in reflection values. For example, if the preset coefficient is large, then a small difference between the initial reflection value and the current reflection value can result in a large change in the second predetermined time length; conversely, if the preset coefficient is small, the change in the second predetermined time length is relatively flat.

[0066] The embodiments of the present application determine the second predetermined time length based on the difference between the initial reflection value and the current reflection value, which can dynamically adjust the working time length of the heating module 1002 according to the actual oil stain accumulation. For the case of slow oil stain accumulation and light degree, the second predetermined time length will be relatively short, avoiding unnecessary long heating and saving energy; for the case of fast oil stain accumulation and heavy degree, the second predetermined time length will be extended accordingly, ensuring that the air inlet can be fully cleaned and improving the cleaning effect.

[0067] In some embodiments, after controlling the heating module 1002 to work for the second predetermined time length, the range hood control method further comprises: updating the first predetermined time length based on the second predetermined time length.

[0068] It can be understood that during the operation of the range hood 1000, the accumulation of oil stains in the air inlet will change with various factors such as use time, cooking method, kitchen environment, etc. In the traditional range hood control method, the first predetermined time length is often fixed and cannot be dynamically changed according to the oil stain situation. The embodiments of the present application update the first predetermined time length based on the second predetermined time length, so as to automatically adjust the preliminary heating time according to the actual cleaning situation, improve the cleaning efficiency, reduce energy consumption, and enhance the adaptability of the range hood 1000 to different use environments.

[0069] For example, after one cooking use of the range hood 1000, the control system 1003 calculates the second predetermined time length as 10 minutes according to the above algorithm, and then after the next cooking use of the range hood 1000, the heating module 1002 is controlled to heat for the updated first predetermined time length, i.e. 10 minutes, so as to improve the cleaning efficiency and ensure the cleaning effect. In this way, the first predetermined time length can be automatically optimized, so that the first predetermined time length is more suitable for the actual use situation.

[0070] Please refer to Figure 3 In some embodiments, before determining whether the range hood 1000 is used by the user for the first time, the range hood control method further comprises: determining whether the infrared sensor module 1001 has a fault; when the infrared sensor module 1001 has a fault, displaying a fault code to remind the user, and controlling the heating module 1002 to work for a preset time length after the range hood 1000 is turned off; when the infrared sensor module 1001 does not have a fault, entering the step of determining whether the range hood 1000 is used by the user for the first time.

[0071] Specifically, after the control system 1003 is initialized, the fault of the infrared sensor module 1001 can be determined first.

[0072] The fault determination of the infrared sensor module 1001 includes determining whether the communication between the infrared sensor module 1001 and the control system 1003 is normal, and whether the reflection value detected by the infrared sensor module 1001 is normal. If the communication between the infrared sensor module 1001 and the control system 1003 is abnormal, or the reflection value detected by the infrared sensor module 1001 is abnormal (for example, the reflection value is 0 or particularly large), a fault code can be displayed on the control panel of the range hood 1000 to remind the user to maintain or replace the infrared sensor module 1001. Then, the heating module 1002 is controlled to work for a preset time length t1 after the range hood 1000 is turned off, so as to preliminarily clean the oil stains. If there is no above-mentioned fault, the step of determining whether the range hood 1000 is used by the user for the first time is entered.

[0073] Based on the above scheme, the smoke machine control method of the embodiment of the application has at least the following advantages: (1) Concept innovation: from "treating the disease" to "treating the disease" The traditional smoke machine cleaning scheme mainly focuses on cleaning the solidified oil stains, which belongs to the category of "treating the disease". However, the present application creates the concept of "daily immediate cleaning". This concept accurately grasps the key window period when the oil stain is in a liquid state and has not yet solidified after each cooking, and initiates cleaning work. This not only reduces the cleaning cost to a minimum, but also greatly improves the cleaning efficiency, fundamentally changing the maintenance mode of the range hood 1000.

[0074] (2) Mechanism innovation: precise heat control to achieve dry decomposition The present application discards traditional methods such as water washing and chemical cleaning, and innovatively uses a precise control heating mechanism. Specifically, by directional heating of the air inlet area, the residual liquid oil stain is rapidly evaporated; for viscous oil stains, high temperature is used to decompose them into powdered carbide (thermal cracking), achieving efficient, environmentally friendly and non-secondary pollution dry self-cleaning.

[0075] (3) Intelligent innovation: automatic operation under unattended The present application deeply integrates intelligent sensing and control logic. The system can automatically determine the end node of the working cycle of the range hood 1000 and seamlessly start the cleaning program. The entire cleaning process does not require any operation by the user, realizing the leap from "manual operation" to "machine operation", greatly improving the user experience and the timeliness of cleaning.

[0076] (4) Effect innovation: double effect in one shot by source treatment Traditional solutions often only solve surface problems. The present application directly hits the root of the two related pain points of oil stain accumulation and condensation dripping at the air inlet, which is the daily residual small amount of untreated oil stain. By eliminating the accumulation of daily micro oil stains, the occurrence of "oil accumulation" and "oil dripping" is fundamentally avoided, achieving a long-term cleaning effect of "one shot".

[0077] Please refer to Figure 2 and Figure 4The smoke machine control device 100 of the embodiment of the present application is applied to the extractor hood 1000. The extractor hood 1000 comprises an air inlet, an infrared sensor module 1001 and a heating module 1002. The infrared sensor module 1001 comprises an infrared emitter and an infrared receiver. The infrared emitted by the infrared emitter is reflected to the infrared receiver through the air inlet. The heating module 1002 is used for heating a predetermined area of the air inlet. The smoke machine control device 100 comprises a first acquisition module 10, a second acquisition module 20 and a control module 30. The first acquisition module 10 is used for acquiring an initial reflection value corresponding to the air inlet detected by the infrared sensor module 1001. The second acquisition module 20 is used for acquiring a current reflection value corresponding to the air inlet detected by the infrared sensor module 1001 after the extractor hood 1000 stops working. The control module 30 is used for controlling the working state of the heating module 1002 based on the initial reflection value and the current reflection value.

[0078] The smoke machine control device 100 of the embodiment of the present application acquires the current reflection value corresponding to the air inlet detected by the infrared sensor module 1001 after the extractor hood 1000 stops working, and controls the working state of the heating module 1002 based on the initial reflection value and the current reflection value. In this way, the heating module 1002 can accurately heat the predetermined area of the air inlet, rapidly decompose and melt the residual oil stains attached to the air inlet, effectively solve the problem of oil stain accumulation and dripping, and realize the persistent cleanliness of the air inlet and the efficient operation of the extractor hood 1000.

[0079] In some embodiments, the smoke machine control device 100 further comprises a judgment module. The judgment module is used for judging whether the extractor hood 1000 is used by a user for the first time. The first acquisition module 10 is specifically used for: when the extractor hood 1000 is used by a user for the first time, acquiring a plurality of first reflection values corresponding to the air inlet detected by the infrared sensor module 1001 multiple times; and taking the average value of the plurality of first reflection values as the initial reflection value.

[0080] In the above technical solution, when the extractor hood 1000 is used by a user for the first time, the reflection values detected multiple times are acquired and the average value is taken as the initial reflection value, so as to improve the accuracy and reliability of the initial reflection value.

[0081] In some embodiments, the second acquisition module 20 is specifically used for: after the extractor hood 1000 stops working, controlling the heating module 1002 to work for a first predetermined time length; and after the heating module 1002 works for the first predetermined time length, acquiring the current reflection value corresponding to the air inlet detected by the infrared sensor module 1001.

[0082] In the above technical solution, the oil stains are actively removed during the key window period when the oil stains are in liquid state and have not yet solidified after each cooking, which not only reduces the cleaning cost to the minimum, but also greatly improves the cleaning efficiency, and fundamentally changes the maintenance mode of the range hood 1000. In addition, based on the initial reflection value and the current reflection value, the oil stain condition of the air inlet can be accurately judged to completely remove the oil stains by controlling the working state of the heating module 1002, so as to realize the long-lasting cleanliness of the air inlet and the efficient operation of the range hood 1000.

[0083] In some embodiments, the second acquisition module 20 is specifically configured to: after the heating module 1002 works for a first predetermined time length, acquire a plurality of second reflection values corresponding to the air inlet detected by the infrared sensor module 1001 multiple times; and take the average value of the plurality of second reflection values as the current reflection value.

[0084] In the above technical solution, after the heating module 1002 works for a first predetermined time length, the reflection values detected multiple times are acquired and the average value is taken as the current reflection value, so as to improve the accuracy and reliability of the current reflection value, thereby more accurately controlling the working of the heating module 1002, and realizing the efficient cleaning and long-term stable operation of the air inlet of the range hood 1000.

[0085] In some embodiments, the control module 30 is specifically configured to: judge whether the current reflection value is less than the initial reflection value; when the current reflection value is less than the initial reflection value, judge whether the current reflection value is less than or equal to a previous reflection value corresponding to a previous period of the current reflection value; when the current reflection value is greater than the previous reflection value, control the heating module 1002 to work for a second predetermined time length. The second acquisition module 20 is further configured to re-execute the step of acquiring the current reflection value of the air inlet detected by the infrared sensor module 1001.

[0086] In the above technical solution, by comparing the initial reflection value and the current reflection value, and comparing the previous reflection value corresponding to the previous period, the working time length of the heating module 1002 is accurately controlled, the air inlet is efficiently cleaned, and the long-term stable operation of the range hood 1000 is ensured.

[0087] In some embodiments, before controlling the heating module 1002 to work for a second predetermined time length, the control module 30 is further configured to determine the second predetermined time length based on a preset time length, a preset coefficient, the initial reflection value and the current reflection value. The preset coefficient is greater than zero.

[0088] In the above technical solution, by comprehensively considering the preset time length, the preset coefficient, the initial reflection value and the current reflection value, the second predetermined time length can be more accurately determined, the dynamic and accurate adjustment of the working time length of the heating module 1002 is realized, the cleaning effect is improved, the energy consumption is reduced, and the overall performance and user experience of the range hood 1000 are improved.

[0089] In some embodiments, after controlling the heating module 1002 to work for the second predetermined length of time, the control module 30 is further configured to update the first predetermined length of time based on the second predetermined length of time.

[0090] In the above technical solution, the first predetermined length of time is updated based on the second predetermined length of time, so that the preliminary heating time can be automatically adjusted according to the actual cleaning situation, the cleaning efficiency is improved, the energy consumption is reduced, and the adaptability of the range hood 1000 to different use environments is enhanced.

[0091] It should be noted that the above-mentioned implementation of the range hood control method is also applicable to the range hood control device 100 of the present application, and will not be described here.

[0092] Please refer to Figure 5 The range hood control system 200 of the present application includes one or more processors 210 and a memory 220, and the memory 220 stores a computer program. When the computer program is executed by the processor 210, the range hood control method of any of the above-mentioned embodiments is implemented.

[0093] For example, when the computer program is executed by the processor 210, the following range hood control method is implemented: S10: obtaining the initial reflection value corresponding to the inlet detected by the infrared sensor module 1001; S20: after the range hood 1000 stops working, obtaining the current reflection value corresponding to the inlet detected by the infrared sensor module 1001; S30: controlling the working state of the heating module 1002 based on the initial reflection value and the current reflection value.

[0094] It should be noted that the above-mentioned implementation of the range hood control method is also applicable to the range hood control system 200 of the present application, and will not be described here.

[0095] Please refer to Figure 6 The computer readable storage medium 300 of the present application stores a computer program 310 thereon. When the program is executed by the processor 320, the range hood control method of any of the above-mentioned embodiments is implemented.

[0096] For example, when the program is executed by the processor 320, the following range hood control method is implemented: S10: obtaining the initial reflection value corresponding to the inlet detected by the infrared sensor module 1001; S20: after the range hood 1000 stops working, obtaining the current reflection value corresponding to the inlet detected by the infrared sensor module 1001; S30: Control the working state of the heating module 1002 based on the initial reflection value and the current reflection value.

[0097] It should be noted that the above-mentioned implementation of the range hood control method is also applicable to the computer readable storage medium 300 of the present application, and will not be described here.

[0098] In summary, the range hood control method, the range hood control device 100, the range hood control system 200 and the computer readable storage medium 300 of the present application, after the working of the range hood 1000 is completed, the current reflection value corresponding to the air inlet detected by the infrared sensor module 1001 is obtained, and the working state of the heating module 1002 is controlled based on the initial reflection value and the current reflection value. In this way, the heating module 1002 can accurately control the heating of the predetermined area of the air inlet, rapidly decompose and melt the residual oil stains attached to the air inlet, effectively solve the problem of oil stain accumulation and dripping, and realize the persistent cleanliness of the air inlet and the efficient operation of the range hood 1000.

[0099] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0100] Any process or method descriptions in flow charts or described herein in other ways can be understood as representing code modules, segments, or portions of code that include one or more executable instructions for performing specific logic functions or steps in the process. The scope of preferred embodiments of the present application includes additional implementation in which the functions described in the illustrated or discussed order are performed in a different order, including substantially simultaneously or in reverse order, and additional functions are performed, as would be understood by those skilled in the art.

[0101] The logic and / or steps represented in the flow diagrams and / or described herein, for example, can be considered as a sequence of executable instructions, and can be embodied in any computer-readable storage medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor- containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. In the context of this specification, a computer-readable storage medium can be any tangible means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The computer-readable storage medium can be, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable storage medium include the following: an electrical connection having one or more wires (electronic), a portable computer diskette (magnetic), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber (optical), and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable storage medium can even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example via an optical scanner, then compiled, interpreted, or otherwise processed, and stored in a computer memory in a form that can be later executed by the computer. In the context of this specification, a computer-readable storage medium can be any tangible means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. The computer-readable storage medium can be, for example but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable storage medium include the following: an electrical connection having one or more wires (electronic), a portable computer diskette (magnetic), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber (optical), and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable storage medium can even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, for example via an optical scanner, then compiled, interpreted, or otherwise processed, and stored in a computer memory in a form that can be later executed by the computer.

[0102] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the above embodiments, various steps or methods can be implemented in software or firmware that is stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any of the following technologies, known in the art, or combinations thereof, can be used: a discrete logic circuit having logic gates for implementing logic functions upon data signals, an application specific integrated circuit having appropriate combinational logic gates, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0103] Those skilled in the art of the present technology can understand that all or part of the steps carried out by the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium. When the program is executed, it includes one of the steps of the method embodiment or a combination thereof. In addition, each functional unit in each embodiment of the present application can be integrated in one processing module, or each unit can exist physically alone, or two or more units can be integrated in one module. The above-mentioned integrated module can be realized in the form of hardware or in the form of software function module. The integrated module, if realized in the form of software function module and sold or used as an independent product, can also be stored in a computer readable storage medium. The above-mentioned storage medium can be a read-only memory, a magnetic disk or an optical disk, etc.

[0104] Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A method for controlling a smoke hood, characterized in that, An application is made in a range hood, the range hood including an air inlet, an infrared sensor module, and a heating module. The infrared sensor module includes an infrared emitter and an infrared receiver, wherein infrared rays emitted by the infrared emitter are reflected by the air inlet to the infrared receiver. The heating module is used to heat a predetermined area of ​​the air inlet. The range hood control method includes: Obtain the initial reflection value corresponding to the air inlet detected by the infrared sensor module; After the range hood finishes working, the current reflection value corresponding to the air inlet detected by the infrared sensor module is obtained; The operating state of the heating module is controlled based on the initial reflection value and the current reflection value.

2. The smoke machine control method according to claim 1, characterized in that, The smoke hood control method also includes: Determine whether the range hood is being used for the first time by the user; The step of obtaining the initial reflection value corresponding to the air inlet detected by the infrared sensor module includes: When the range hood is used by the user for the first time, the infrared sensor module obtains multiple first reflection values ​​corresponding to the air inlet through multiple detections. The average of the multiple first reflection values ​​is used as the initial reflection value.

3. The smoke hood control method according to claim 1, characterized in that, After the range hood finishes operating, the step of acquiring the current reflection value corresponding to the air inlet detected by the infrared sensor module includes: After the range hood finishes working, the heating module is controlled to work for a first predetermined period of time; After the heating module has been operating for the first predetermined period of time, the current reflection value corresponding to the air inlet is obtained by the infrared sensor module.

4. The smoke machine control method according to claim 3, characterized in that, After the heating module has been operating for the first predetermined period of time, the step of acquiring the current reflection value corresponding to the air inlet detected by the infrared sensor module includes: After the heating module has been working for the first predetermined period of time, multiple second reflection values ​​corresponding to the air inlet are obtained from multiple detections by the infrared sensor module. The average of the multiple second reflectance values ​​is taken as the current reflectance value.

5. The smoke machine control method according to claim 3, characterized in that, The step of controlling the operating state of the heating module based on the initial reflection value and the current reflection value includes: Determine whether the current reflection value is less than the initial reflection value; When the current reflection value is less than the initial reflection value, it is determined whether the current reflection value is less than or equal to the previous reflection value corresponding to the previous cycle of the current reflection value; When the current reflection value is greater than the previous reflection value, the heating module is controlled to work for a second predetermined time, and the step of obtaining the current reflection value corresponding to the air inlet detected by the infrared sensor module is re-executed.

6. The smoke hood control method according to claim 5, characterized in that, Before the second predetermined duration of operation of the heating module is specified, the range hood control method further includes: The second predetermined duration is determined based on the preset duration, the preset coefficient, the initial reflection value, and the current reflection value; Wherein, the preset coefficient is greater than zero.

7. The smoke hood control method according to claim 5, characterized in that, After the heating module has been controlled to operate for a second predetermined period of time, the range hood control method further includes: The first predetermined duration is updated based on the second predetermined duration.

8. A smoke machine control device, characterized in that, An application is made in a range hood, the range hood including an air inlet, an infrared sensor module, and a heating module. The infrared sensor module includes an infrared emitter and an infrared receiver, wherein infrared rays emitted by the infrared emitter are reflected by the air inlet to the infrared receiver. The heating module is used to heat a predetermined area of ​​the air inlet. The range hood control device includes: The first acquisition module is used to acquire the initial reflection value corresponding to the air inlet detected by the infrared sensor module; The second acquisition module is used to acquire the current reflection value corresponding to the air inlet detected by the infrared sensor module after the range hood has finished working; The control module is used to control the working state of the heating module based on the initial reflection value and the current reflection value.

9. A smoke hood control system, characterized in that, The smoke hood control system includes one or more processors and a memory, the memory storing a computer program, which, when executed by the processor, implements the smoke hood control method according to any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the smoke machine control method according to any one of claims 1-7.

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