CN107631338B - Infrared control method and device for range hood, range hood controller and range hood - Google Patents
Infrared control method and device for range hood, range hood controller and range hood Download PDFInfo
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Abstract
The invention provides an infrared control method and device for a range hood, a range hood controller and a range hood, and relates to the technical field of range hoods, wherein the method comprises the following steps: receiving an infrared wavelength signal of a preset detection area in real time in the running process of the range hood; converting the infrared wavelength signal into a feedback signal when the infrared wavelength signal is received; determining the intensity, the variation trend and the signal difference of the feedback signal; and controlling the air quantity of the range hood according to the intensity, the variation trend and the signal difference. According to the range hood infrared control method and device, the range hood controller and the range hood provided by the embodiment of the invention, the infrared wavelength signal of the preset detection area can be received in real time and converted into the feedback signal in the operation process of the range hood, the intensity, the variation trend and the signal difference of the feedback signal are determined, the air volume of the range hood is controlled according to the intensity, the variation trend and the signal difference, the cooking state can be accurately reflected, and therefore the air volume of the range hood is accurately controlled.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to an infrared control method and device for a range hood, a range hood controller and a range hood.
Background
When cooking in a kitchen, a user needs to repeatedly adjust the air quantity of the range hood according to the generated oil smoke quantity and the firepower of the cooker. The initial adjustment mode is controlled by a key on the range hood, but the finger of a user is stained with water or oil stain, the key is stained with the oil stain when being touched, and the key is polluted to be dirtied; meanwhile, dirty keys can also contaminate hands, which can lead to hygiene problems when the hands contact food.
In the prior art, the regulation and control of the range hood are generally realized by liberating two hands through modes such as voice recognition, gesture recognition or infrared recognition. However, the noise generated when the range hood operates often causes misjudgment of voice recognition; gesture recognition requires a consumer to swing a hand or an arm, so that operation is inconvenient and experience is poor; the infrared temperature identification technology has the problem of high misjudgment rate, and intelligent control cannot be really realized.
Aiming at the problems of the control mode of the range hood in the prior art, an effective solution is not provided at present.
Disclosure of Invention
In view of this, the invention aims to provide an infrared control method and device for a range hood, a range hood controller and a range hood, so as to automatically and accurately control the air volume of the range hood.
In a first aspect, an embodiment of the present invention provides an infrared control method for a range hood, including: receiving an infrared wavelength signal of a preset detection area in real time in the running process of the range hood; converting the infrared wavelength signal into a feedback signal when the infrared wavelength signal is received; determining the intensity, the variation trend and the signal difference of the feedback signal; and controlling the air quantity of the range hood according to the intensity, the variation trend and the signal difference.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the step of receiving an infrared wavelength signal of a preset detection area in real time includes: receiving an infrared wavelength signal of a preset detection area in real time through a passive red sensor module; the passive red sensor module includes an infrared sensor and a wavelength filtering optic.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the step of converting the infrared wavelength signal into the feedback signal includes: converting the infrared wavelength signal into a temperature feedback signal or an energy feedback signal; the temperature feedback signal is a temperature value, and the energy feedback signal is an energy value.
With reference to the second possible implementation manner of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where the step of determining the strength, the variation trend, and the signal difference of the feedback signal when the infrared wavelength signal is converted into the temperature feedback signal includes: determining a temperature interval in which the current temperature value falls according to the temperature feedback signal; the temperature interval at least comprises a high temperature interval, a medium temperature interval and a low temperature interval; determining the variation trend of the temperature value in a preset period according to the temperature feedback signal; the change trend at least comprises an ascending trend and a descending trend, and the preset period comprises the current temperature value; and determining whether the difference value of the temperature values in the preset period is greater than a temperature threshold value according to the temperature feedback signal.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the step of determining a trend of a change in the temperature value within a preset period according to the temperature feedback signal includes: dividing a preset period into a front section and a rear section, and respectively calculating the average temperature values of the front section and the rear section; determining the variation trend through the average temperature values of the front section and the rear section;
the step of determining whether the difference value of the temperature values in the preset period is greater than the temperature threshold value according to the temperature feedback signal comprises the following steps: and determining whether the difference value is larger than the temperature threshold value through the average value of the temperatures of the front section and the rear section.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where the step of controlling the air volume of the range hood according to the intensity, the variation trend, and the signal difference includes:
when the temperature interval is a low-temperature interval, the change trend is an ascending trend or a descending trend, and the difference value is smaller than the temperature threshold value, controlling the air volume of the range hood to be small; when the temperature interval is a low-temperature interval, the change trend is a descending trend, and the difference value is greater than the temperature threshold value, the air quantity of the range hood is controlled to be small; when the temperature interval is a low-temperature interval, the variation trend is an ascending trend, and the difference value is greater than a temperature threshold value, controlling the air quantity of the range hood to be a strong wind shield; when the temperature interval is a medium-temperature interval, the variation trend is an ascending trend or a descending trend, and the difference value is smaller than the temperature threshold value, controlling the air quantity of the range hood to be a strong wind level; when the temperature interval is a medium-temperature interval, the change trend is a descending trend, and the difference value is greater than a temperature threshold value, controlling the air quantity of the range hood to be a stir-frying gear; when the temperature interval is a medium-temperature interval, the variation trend is an ascending trend, and the difference value is greater than a temperature threshold value, controlling the air quantity of the range hood to be a strong wind level; when the temperature interval is a high-temperature interval, the variation trend is an ascending trend or a descending trend, and the difference value is smaller than the temperature threshold value, controlling the air quantity of the range hood to be a strong wind level; when the temperature interval is a high-temperature interval, the variation trend is an ascending trend or a descending trend, and the difference value is greater than the temperature threshold value, controlling the air volume of the range hood to be a stir-frying gear; when the temperature interval is a high-temperature interval, the variation trend is an ascending trend, and the difference value is greater than the temperature threshold value, the air quantity of the range hood is controlled to be a strong wind gear.
With reference to the second possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where the step of determining the strength, the variation trend, and the signal difference of the feedback signal when the infrared wavelength signal is converted into the energy feedback signal includes: determining an energy interval in which the current energy value falls according to the energy feedback signal; the energy interval at least comprises a high area, a middle area and a low area; determining the variation trend of the energy value in a preset period according to the energy feedback signal; the change trend at least comprises an ascending trend and a descending trend, and the preset period comprises the current energy value; and determining whether the difference value of the energy values in the preset period is larger than an energy threshold value according to the energy feedback signal.
In a second aspect, an embodiment of the present invention further provides an infrared control device for a range hood, including: the receiving module is used for receiving the infrared wavelength signals of a preset detection area in real time in the running process of the range hood; the conversion module is used for converting the infrared wavelength signal into a feedback signal when receiving the infrared wavelength signal; the determining module is used for determining the strength, the variation trend and the signal difference of the feedback signal; and the control module is used for controlling the air quantity of the range hood according to the intensity, the variation trend and the signal difference.
In a third aspect, an embodiment of the present invention further provides a range hood controller, including a processor and a machine-readable storage medium, where the machine-readable storage medium stores machine-executable instructions capable of being executed by the processor, and the processor executes the machine-executable instructions to implement the method provided in the foregoing aspect.
In a fourth aspect, an embodiment of the present invention further provides a range hood, including a fan, a passive red sensor module, and the range hood controller provided in the above aspect; the range hood controller is respectively connected with the fan and the passive red sensor module and is used for receiving and processing the infrared wavelength signals collected by the passive red sensor module and controlling the air quantity of the fan.
The embodiment of the invention has the following beneficial effects:
according to the range hood infrared control method and device, the range hood controller and the range hood, the infrared wavelength signal of the preset detection area can be received in real time and converted into the feedback signal in the operation process of the range hood, the intensity, the variation trend and the signal difference of the feedback signal are determined, the air volume of the range hood is controlled according to the intensity, the variation trend and the signal difference, the air volume of the range hood can be automatically controlled, manual control of a user is not needed, and the experience degree of the user is improved; through the operation on the infrared wavelength signals, the cooking state can be accurately reflected, and therefore the air quantity of the range hood is accurately controlled.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.
In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of an infrared control method for a range hood according to an embodiment of the present invention;
FIG. 2 illustrates an area identified by an infrared sensor provided by an embodiment of the present invention;
fig. 3 is a schematic diagram of a control principle of a range hood provided by an embodiment of the present invention;
fig. 4 is a block diagram of a structure of an infrared control device of a range hood according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, the range hood is controlled in a voice recognition mode, a gesture recognition mode or an infrared recognition mode and the like, and the problems include high recognition error rate, unchanged operation and the like.
In order to facilitate understanding of the embodiment, a detailed description is first given of an infrared control method of a range hood disclosed in the embodiment of the present invention.
Example 1
The embodiment of the invention provides an infrared control method of a range hood, which is shown in a flow chart of the infrared control method of the range hood shown in figure 1 and comprises the following steps:
and S102, receiving the infrared wavelength signal of a preset detection area in real time in the running process of the range hood.
The controller or the main control board of the range hood receives the infrared wavelength signals collected by the infrared control module, and the infrared control module continuously collects the preset detection area in real time in the operation process of the range hood. Wherein, the preset detection area is a heating area of the kitchen range or an area of cookers such as a pot and the like placed on the kitchen range.
In this embodiment, the infrared control module is a passive infrared sensor module, and the controller or the main control board receives an infrared wavelength signal of a preset detection area in real time through the passive infrared sensor module. The passive infrared sensor module includes an infrared sensor and a wavelength filtering lens. The area identified by the infrared sensor is shown in FIG. 2, the identification area is a cone with height H and diameter D, and H/D ranges from 2/1-3/1.
The passive infrared sensor receives external infrared wavelength, and eliminates the reduction of detection precision caused by the blockage or the absorption of other objects of the active emission wave. The passive infrared sensor mainly comprises a wavelength acquisition element, and the wavelength is screened by optical glass or optical plastic, so that the identification precision of the wavelength is improved. The optical glass or the optical plastic has a filtering effect, can filter infrared waves generated by water vapor or oil smoke and infrared waves subjected to diffuse reflection and refraction, and can only allow infrared rays in a specific wavelength range to pass through, for example, the wavelength range is 50-140 micrometers, so that infrared rays emitted by an operating table with low temperature, a human body, flame with high temperature and the like are filtered, and the identification accuracy of the wavelength is improved.
And step S104, converting the infrared wavelength signal into a feedback signal when receiving the infrared wavelength signal.
The infrared wavelength signal may be converted into a temperature feedback signal, an energy feedback signal, or other signals, which may meet feedback requirements, and this embodiment is not limited thereto. For example, the temperature feedback signal may be a temperature value and the energy feedback signal may be an energy value.
Since the higher the temperature of the object surface, the shorter the wavelength of the infrared radiation it radiates, and the absolute temperature of the object surface determines the peak wavelength of the infrared radiation, the temperature value can be determined from the peak wavelength in the infrared wavelength signal. And, through the conversion relation between wavelength and energy, can calculate its energy intensity, namely the magnitude of energy through the peak wavelength.
And step S106, determining the intensity, the variation trend and the signal difference of the feedback signal.
After the feedback signal is obtained through conversion, the strength of the current signal in the feedback signal, the variation trend of the signal within a certain preset time period, and the signal difference within the preset time period need to be determined. The current signal may be used as a partition, the time preset period is divided into two parts, the strength of the current signal is determined according to which signal range the current signal belongs to, the change trend of the current signal is determined according to the change of the average signal of the two parts, and the signal difference is determined according to the difference of the average signals of the two parts. By continuously recognizing the change of the preset detection area in a cycle, the actual cooking state can be accurately approached.
And S108, controlling the air quantity of the range hood according to the intensity, the variation trend and the signal difference.
After the intensity, the variation trend and the signal difference of the feedback signal are obtained, the current proper air volume can be determined according to the corresponding relation between the combination of the intensity, the variation trend and the signal difference and the air volume, and then the air volume gear of the range hood is controlled. The different combinations of the intensity, the variation trend and the signal difference can respectively represent different states in cooking, such as soup cooking, stir-frying, pan cover opening/closing, cold water adding and the like.
According to the infrared control method for the range hood, provided by the embodiment of the invention, the infrared wavelength signal of the preset detection area can be received in real time and converted into the feedback signal in the operation process of the range hood, the intensity, the variation trend and the signal difference of the feedback signal are determined, and then the air volume of the range hood is controlled according to the intensity, the variation trend and the signal difference, so that the air volume of the range hood can be automatically controlled, manual control of a user is not needed, and the experience degree of the user is improved; through the operation on the infrared wavelength signals, the cooking state can be accurately reflected, and therefore the air quantity of the range hood is accurately controlled.
In step S104, when the infrared wavelength signal is converted into the temperature feedback signal, determining the strength, the variation trend, and the signal difference of the feedback signal specifically includes:
(1) and determining the temperature interval in which the current temperature value falls according to the temperature feedback signal. The temperature interval at least comprises a high temperature interval, a medium temperature interval and a low temperature interval, and can be divided into more intervals for more precise control. The division of each interval can be performed according to the actual temperature of the user during cooking, such as the smoking temperature of common oil, the common oil temperature during cooking, and the like, and for example, a temperature lower than 75 ℃ can be determined as a low temperature interval, and a temperature higher than 120 ℃ can be determined as a high temperature interval.
(2) And determining the change trend of the temperature value in the preset period according to the temperature feedback signal. The change trend at least comprises an ascending trend and a descending trend, the current temperature value is the temperature value at a certain time point in the preset period, and the current temperature value divides the preset period into a front section and a rear section. After dividing the preset period into a front section and a rear section, the temperature average values of the front section and the rear section can be respectively calculated, and the variation trend of the temperature average values of the front section and the rear section is determined: when the average temperature value of the front section is greater than that of the rear section, the trend is downward; when the average temperature value of the front section is smaller than that of the rear section, the temperature is in an ascending trend; if equal, it is a constant temperature trend. It should be noted that the time lengths of the front and rear segments may be the same or different.
(3) And determining whether the difference value of the temperature values in the preset period is greater than a temperature threshold value according to the temperature feedback signal.
After the average temperature values of the front section and the rear section are obtained through calculation, the difference value between the front section and the rear section can be calculated, whether the difference value is larger than a temperature threshold value or not is judged, and if the difference value is larger than the temperature threshold value, the cooking process is in a severe change stage.
In step S104, when the infrared wavelength signal is converted into an energy feedback signal, determining the strength, the variation trend, and the signal difference of the feedback signal includes:
(1) determining an energy interval in which the current energy value falls according to the energy feedback signal; the energy interval includes at least a high region, a middle region and a low region.
(2) And determining the variation trend of the energy value in the preset period according to the energy feedback signal. The variation trend includes at least an upward trend and a downward trend, wherein the time of the current energy value falls within a preset period.
(3) And determining whether the difference value of the energy values in the preset period is larger than an energy threshold value according to the energy feedback signal.
When the infrared wavelength signal is converted into the temperature feedback signal, the step S108 of controlling the air volume of the range hood according to the intensity, the variation trend and the signal difference specifically includes:
when the temperature interval is a low-temperature interval, the change trend is an ascending trend or a descending trend, and the difference value is smaller than the temperature threshold value, controlling the air volume of the range hood to be small;
when the temperature interval is a low-temperature interval, the change trend is a descending trend, and the difference value is greater than the temperature threshold value, the air quantity of the range hood is controlled to be small;
when the temperature interval is a low-temperature interval, the variation trend is an ascending trend, and the difference value is greater than a temperature threshold value, controlling the air quantity of the range hood to be a strong wind shield;
when the temperature interval is a medium-temperature interval, the variation trend is an ascending trend or a descending trend, and the difference value is smaller than the temperature threshold value, controlling the air quantity of the range hood to be a strong wind level;
when the temperature interval is a medium-temperature interval, the change trend is a descending trend, and the difference value is greater than a temperature threshold value, controlling the air quantity of the range hood to be a stir-frying gear;
when the temperature interval is a medium-temperature interval, the variation trend is an ascending trend, and the difference value is greater than a temperature threshold value, controlling the air quantity of the range hood to be a strong wind level;
when the temperature interval is a high-temperature interval, the variation trend is an ascending trend or a descending trend, and the difference value is smaller than the temperature threshold value, controlling the air quantity of the range hood to be a strong wind level;
when the temperature interval is a high-temperature interval, the variation trend is an ascending trend or a descending trend, and the difference value is greater than the temperature threshold value, controlling the air volume of the range hood to be a stir-frying gear;
when the temperature interval is a high-temperature interval, the variation trend is an ascending trend, and the difference value is greater than the temperature threshold value, the air quantity of the range hood is controlled to be a strong wind gear.
According to the infrared control method for the range hood, provided by the embodiment of the invention, the infrared wavelength signal of the preset detection area can be received in real time and converted into the temperature feedback signal or the energy feedback signal in the operation process of the range hood, and the corresponding air volume gear is determined according to the interval in which the current temperature value or the current energy value falls, the variation trend in the preset period and the difference value in the preset period, so that the air volume of the range hood can be automatically controlled, manual control of a user is not needed, and the experience degree of the user is improved; through the operation on the infrared wavelength signals, the cooking state can be accurately reflected, and therefore the air quantity of the range hood is accurately controlled.
Example 2
The embodiment of the invention provides an infrared control method for a range hood, which takes the example of converting an infrared wavelength signal into a temperature feedback signal for explanation.
Referring to fig. 3, a control principle schematic diagram of the range hood is shown, wherein an electric control board 31 and an infrared module 32 are shown, and the infrared module 32 receives infrared waves radiated by a pan 33. Wherein, infrared module 32 gathers the infrared wavelength in pot 33, and infrared module changes the wavelength signal into temperature signal feedback to the automatically controlled board 31 of lampblack absorber, and the automatically controlled board carries out the amount of wind of intelligent control lampblack absorber according to the temperature range of feedback, temperature variation trend and difference in temperature size.
The infrared sensor module collects infrared wavelength in the pan, converts the infrared wavelength into a temperature signal and feeds the temperature signal back to the electric control board, the electric control board analyzes the fed-back temperature data by a program, a temperature area where the temperature is located is identified by calculation, meanwhile, the temperature change trend in the period time is calculated, the temperature difference of the period time is calculated, and the period time is Ts. The infrared sensor module continuously collects signals in real time, data in an operation period are continuous during operation, and time in the period can be used as data of one point or a section of data. For example, 10 data acquisitions within 1 s.
For example, the period is 1s, the temperature detected at the current time is 80 ℃, the current time is used as a boundary, the 1s is divided into a front section of 0.6s and a rear section of 0.4s, the average temperature of the front section is 79.8 ℃, and the average temperature of the rear section is 70.5 ℃. Firstly, determining the temperature interval in which the current temperature of 80 ℃ falls, and then calculating the change trend and the temperature difference, wherein the change trend is temperature reduction, and the temperature difference is 9.3 ℃. It can be judged that a small amount of cold water or cooled food materials are added in the cooking process, more oil smoke is possibly generated, and exhaust with larger air volume is needed at the moment.
The above-mentioned time period and division of the front section and the rear section are only examples, and the period and division of comparison may be determined as needed. The range hood is controlled after the temperature data of the rear section is obtained and calculated, and the time of the rear section can be shorter than that of the front section during division, so that the requirement of quickly responding to cooking state changes is met.
The accuracy of range hood control is directly influenced by the temperature range, the temperature variation trend and the temperature difference size matching algorithm. As shown in Table 1, X, Y represents the critical temperature and Δ M represents the temperature difference, respectively. Wherein the temperature range is below X ℃, the temperature range is above Y ℃, the temperature range is high temperature range, the temperature range is Y > t > X ℃, the temperature range is middle temperature range, ↓ represents a descending trend, and ↓ represents an ascending trend. Wherein the range of X-100 deg.C-85 deg.C-130 deg.C is taken as an example.
And when the temperature difference value is higher than the delta M, the state is regarded as a large temperature difference state, when the temperature difference value is smaller than the delta M, the state is regarded as a small temperature difference state, and meanwhile, the temperature change trend is judged according to the temperature data in the period. Wherein the range of delta M is 3-30 deg.C. The environment temperature is A, the highest recognition temperature B of the infrared sensing module is B, and infrared outside the temperature A and temperature B areas is not collected and processed.
| Serial number | Temperature of | Temperature difference (3s) | Trend of temperature change | Range hood gear |
| 1 | <X℃ | <ΔM℃ | ↓↑ | Small air quantity |
| 2 | <X℃ | >ΔM℃ | ↓ | Small air quantity |
| 3 | <X℃ | >ΔM℃ | ↑ | Strong wind shield |
| 4 | Y>t>X℃ | <ΔM℃ | ↓↑ | Strong wind shield |
| 5 | Y>t>X℃ | >ΔM℃ | ↓ | Quick-frying gear |
| 6 | Y>t>X℃ | >ΔM℃ | ↑ | Strong wind shield |
| 7 | t>Y℃ | <ΔM℃ | ↓↑ | Strong wind shield |
| 8 | t>Y℃ | >ΔM℃ | ↓ | Quick-frying gear |
| 9 | t>Y℃ | >ΔM℃ | ↑ | Strong wind shield |
TABLE 1
In this embodiment, the temperature of X is set to be 75 ℃, the temperature of Y is set to be 120 ℃, and in a low-temperature region, a temperature change trend and a temperature difference magnitude are detected, for example, when a temperature rise trend is detected and the temperature difference change is large, a cooking state is in a strong fire heating state at this time, soup cooking may be performed or stir-frying may be performed, at this time, more oil smoke may be generated, and therefore, a large air volume needs to be opened.
Meanwhile, the temperature difference identification in the period is utilized, so that the process of increasing food materials during quick frying can be judged in advance, the state of lifting/covering the pot cover can be judged in advance, cold water can be added in advance, and the cooking process of the kitchen can be simulated really. For example, when boiling water or cooking soup, in an initial state, the temperature is identified to be in a low-temperature area, the temperature difference in the pot body in a period is small, the amount of smoke generated in the scene is small, and the air volume is set to be small; after the cooking and stewing is carried out for a period of time, the recognition temperature is in a medium temperature area, the convection of liquid in the pot is increased, the temperature is in an ascending trend, the temperature difference is large, the smoke gas amount generated under the scene is large, and a strong wind shield is set at the moment.
If the detected temperature in the period is in a medium temperature or high temperature area, the temperature difference in the period is large, the pot cover is in a rapid heating state, and the pot cover is probably in the process of lifting, so that large oil smoke is generated, and the windshield for stir-frying is set at the moment.
If the detected temperature in the period is in a medium temperature or high temperature area, the temperature difference in the period is large, the temperature is in a rapid cooling state, a small amount of cold water or food materials are added possibly, and large oil smoke is generated, at this time, the detected temperature is set as a stir-frying windshield.
According to the infrared control method for the range hood, provided by the embodiment of the invention, the infrared wavelength signal of the preset detection area can be received in real time and converted into the temperature in the operation process of the range hood, so that the oil smoke amount in the cooking process is judged according to the temperature, the temperature change trend and the temperature difference and intelligently controlled, the smoke generation state in the cooking process is deduced, and the air volume of the precise range hood is controlled.
Example 3
The embodiment of the invention provides an infrared control device of a range hood, and fig. 4 shows a structural block diagram of the infrared control device of the range hood, which comprises the following components:
the receiving module 41 is used for receiving the infrared wavelength signal of the preset detection area in real time in the running process of the range hood;
a conversion module 42, configured to convert the infrared wavelength signal into a feedback signal when receiving the infrared wavelength signal;
a determining module 43, configured to determine the strength, the variation trend, and the signal difference of the feedback signal;
and the control module 44 is used for controlling the air volume of the range hood according to the intensity, the variation trend and the signal difference.
The range hood infrared control device provided by the embodiment of the invention has the same technical characteristics as the range hood infrared control method provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
The embodiment of the invention also provides a range hood controller, which comprises a processor and a machine-readable storage medium, wherein the machine-readable storage medium stores machine-executable instructions capable of being executed by the processor, and the processor executes the machine-executable instructions to realize the method provided by the embodiment.
The embodiment of the invention also provides a range hood, which comprises a fan, a passive red sensor module and the range hood controller provided by the embodiment; the range hood controller is respectively connected with the fan and the passive red sensor module and is used for receiving and processing the infrared wavelength signals collected by the passive red sensor module and controlling the air quantity of the fan.
The present embodiment also provides a computer storage medium for storing computer software instructions for the apparatus provided in the above embodiments.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. The implementation principle and the generated technical effects of the range hood controller and the range hood provided by the embodiment of the invention are the same as those of the embodiment of the method, and for brief description, parts of the embodiment of the device which are not mentioned can refer to corresponding contents in the embodiment of the method.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, each functional module or unit in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions or without necessarily implying any relative importance. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. An infrared control method for a range hood is characterized by comprising the following steps:
receiving an infrared wavelength signal of a preset detection area in real time in the running process of the range hood;
converting the infrared wavelength signal into a feedback signal upon receiving the infrared wavelength signal; wherein the step of converting the infrared wavelength signal into a feedback signal comprises: converting the infrared wavelength signal into a temperature feedback signal or an energy feedback signal; the temperature feedback signal is a temperature value, and the energy feedback signal is an energy value;
determining the intensity, the variation trend and the signal difference of the feedback signal;
controlling the air quantity of the range hood according to the intensity, the variation trend and the signal difference;
wherein, when the infrared wavelength signal is converted into a temperature feedback signal, the step of determining the intensity, the variation trend and the signal difference of the feedback signal comprises:
determining a temperature interval in which the current temperature value falls according to the temperature feedback signal; the temperature interval at least comprises a high temperature interval, a medium temperature interval and a low temperature interval; wherein, the temperature range is below X ℃, the temperature range is above Y > t > X ℃, the temperature range is between T and T, X, Y respectively represents critical temperature, and the temperature range of X ℃ is between 55 ℃ and 100 ℃, and the temperature range of Y ℃ is between 85 ℃ and 130 ℃;
determining the change trend of the temperature value in a preset period according to the temperature feedback signal; the change trend at least comprises an ascending trend and a descending trend, and the preset period comprises the current temperature value;
and determining whether the difference value of the temperature values in the preset period is greater than a temperature threshold value according to the temperature feedback signal, wherein the temperature threshold value is in the range of 3-30 ℃.
2. The method of claim 1, wherein the step of receiving in real time the infrared wavelength signal of the predetermined detection area comprises:
receiving an infrared wavelength signal of a preset detection area in real time through a passive red sensor module; the passive red sensor module includes an infrared sensor and a wavelength filtering optic.
3. The method of claim 1, wherein the step of determining the trend of the temperature value within a preset period according to the temperature feedback signal comprises:
dividing the preset period into a front section and a rear section, and respectively calculating the temperature average values of the front section and the rear section;
determining a variation trend through the average temperature values of the front section and the rear section;
the step of determining whether the difference value of the temperature values in the preset period is greater than a temperature threshold value according to the temperature feedback signal includes:
determining whether the difference is greater than a temperature threshold by an average of the temperatures of the front section and the rear section.
4. The method according to claim 1, wherein the step of controlling the air volume of the range hood according to the intensity, the variation trend and the signal difference comprises the following steps:
when the temperature interval is a low-temperature interval, the change trend is an ascending trend or a descending trend, and the difference value is smaller than a temperature threshold value, the air volume of the range hood is controlled to be small;
when the temperature interval is a low-temperature interval, the change trend is a descending trend, and the difference value is greater than a temperature threshold value, the air volume of the range hood is controlled to be small;
when the temperature interval is a low-temperature interval, the change trend is an ascending trend, the difference value is greater than a temperature threshold value, and the air quantity of the range hood is controlled to be a strong wind shield;
when the temperature interval is a medium-temperature interval, the change trend is an ascending trend or a descending trend, and the difference value is smaller than a temperature threshold value, the air quantity of the range hood is controlled to be a strong wind level;
when the temperature interval is a middle temperature interval, the change trend is a descending trend, the difference value is greater than a temperature threshold value, and the air quantity of the range hood is controlled to be a stir-frying gear;
when the temperature interval is a medium-temperature interval, the change trend is an ascending trend, the difference value is greater than a temperature threshold value, and the air quantity of the range hood is controlled to be a strong wind level;
when the temperature interval is a high-temperature interval, the change trend is an ascending trend or a descending trend, and the difference value is smaller than a temperature threshold value, the air quantity of the range hood is controlled to be a strong wind level;
when the temperature interval is a high-temperature interval, the change trend is an ascending trend or a descending trend, and the difference value is greater than a temperature threshold value, controlling the air volume of the range hood to be a stir-frying gear;
and when the temperature interval is a high-temperature interval, the variation trend is an ascending trend, the difference value is greater than a temperature threshold value, and the air quantity of the range hood is controlled to be a strong wind shield.
5. The method of claim 1, wherein the step of determining the magnitude, trend and signal difference of the feedback signal when the infrared wavelength signal is converted into an energy feedback signal comprises:
determining an energy interval in which the current energy value falls according to the energy feedback signal; the energy interval at least comprises a high area, a middle area and a low area;
determining the change trend of the energy value in a preset period according to the energy feedback signal; the change trend at least comprises an ascending trend and a descending trend, and the preset period comprises the current energy value;
and determining whether the difference value of the energy values in the preset period is greater than an energy threshold value according to the energy feedback signal.
6. The utility model provides a lampblack absorber infrared control device which characterized in that includes:
the receiving module is used for receiving the infrared wavelength signals of a preset detection area in real time in the running process of the range hood;
the conversion module is used for converting the infrared wavelength signal into a feedback signal when receiving the infrared wavelength signal; wherein the step of converting the infrared wavelength signal into a feedback signal comprises: converting the infrared wavelength signal into a temperature feedback signal or an energy feedback signal; the temperature feedback signal is a temperature value, and the energy feedback signal is an energy value;
the determining module is used for determining the strength, the variation trend and the signal difference of the feedback signal;
the control module is used for controlling the air quantity of the range hood according to the intensity, the variation trend and the signal difference;
wherein, when the infrared wavelength signal is converted to a temperature feedback signal, the determination module is to:
determining a temperature interval in which the current temperature value falls according to the temperature feedback signal; the temperature interval at least comprises a high temperature interval, a medium temperature interval and a low temperature interval; wherein, the temperature range is below X ℃, the temperature range is above Y > t > X ℃, the temperature range is between T and T, X, Y respectively represents critical temperature, and the temperature range of X ℃ is between 55 ℃ and 100 ℃, and the temperature range of Y ℃ is between 85 ℃ and 130 ℃;
determining the change trend of the temperature value in a preset period according to the temperature feedback signal; the change trend at least comprises an ascending trend and a descending trend, and the preset period comprises the current temperature value;
and determining whether the difference value of the temperature values in the preset period is greater than a temperature threshold value according to the temperature feedback signal, wherein the temperature threshold value is in the range of 3-30 ℃.
7. A range hood controller comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor executing the machine-executable instructions to implement the method of any of claims 1 to 5.
8. A range hood, characterized by comprising a fan, a passive red sensor module and the range hood controller of claim 7;
the range hood controller is connected with the fan and the passive red sensor module respectively and used for receiving and processing the infrared wavelength signals collected by the passive red sensor module and controlling the air volume of the fan.
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| CN108614492B (en) * | 2018-06-11 | 2021-01-29 | 杭州老板电器股份有限公司 | Intelligent control system and method and kitchen appliance control system |
| TWI673458B (en) * | 2018-06-27 | 2019-10-01 | 台灣櫻花股份有限公司 | Range hood with image detection and control method thereof |
| CN109085870B (en) * | 2018-08-23 | 2021-07-27 | 杭州老板电器股份有限公司 | Control method and device of intelligent household appliance and intelligent household appliance |
| CN109405014B (en) * | 2018-10-31 | 2020-05-22 | 杭州老板电器股份有限公司 | Infrared control method and system for range hood and range hood |
| CN110553296A (en) * | 2019-09-17 | 2019-12-10 | 杭州老板电器股份有限公司 | Intelligent range hood and control method thereof |
| CN110542138A (en) * | 2019-09-30 | 2019-12-06 | 范朝兴 | method and system for automatically controlling range hood through infrared temperature induction |
| CN112833435A (en) * | 2021-01-22 | 2021-05-25 | 合肥瑞纳通软件技术开发有限公司 | Artificial intelligence-based range hood air volume control method, system and equipment |
| CN112462615B (en) * | 2021-01-27 | 2021-05-14 | 佛山市顺德区波唯智能科技有限公司 | Intelligent control method, system and equipment for kitchen air purification equipment |
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