CN108107796B - Range hood, gesture recognition control method and device thereof and readable storage medium - Google Patents
Range hood, gesture recognition control method and device thereof and readable storage medium Download PDFInfo
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- CN108107796B CN108107796B CN201810066063.5A CN201810066063A CN108107796B CN 108107796 B CN108107796 B CN 108107796B CN 201810066063 A CN201810066063 A CN 201810066063A CN 108107796 B CN108107796 B CN 108107796B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention discloses a range hood, a gesture recognition control method and device thereof and a readable storage medium, wherein the gesture recognition control method of the range hood comprises the following steps: the infrared sensor controls the lighting work of the infrared LED lamps at a plurality of preset positions according to a preset time sequence control rule so that the infrared LED lamps emit infrared light in the corresponding position directions; when the gesture actions of a user sequentially cover the corresponding infrared LED lamps, an infrared receiving tube in the infrared sensor sequentially receives infrared light reflected by the gesture actions; the MCU recognizes gesture actions according to the time sequence that the infrared receiving tubes in the infrared sensors sequentially receive the reflected infrared light, generates corresponding gesture commands, and outputs the gesture commands to the main control board of the range hood so as to control the range hood to execute corresponding work. The gesture recognition control device for the range hood can reduce cost and size of the gesture recognition control device for the range hood.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a range hood, a gesture recognition control method and device thereof and a readable storage medium.
Background
Along with technological progress, the intelligent degree of the kitchen electrical appliance is higher and higher, and a plurality of new technologies are gradually applied to the kitchen electrical appliance, so that hands of a user are liberated, and a more interesting and efficient interaction mode is provided. The kitchen ventilator is used as a key electric appliance of a kitchen, the kitchen ventilator is used most frequently, the working environment is bad, dirt is easy to be stained, and based on the sanitary consideration, a user does not want to touch the kitchen ventilator by hands, but wants to operate the kitchen ventilator by using non-contact operation such as voice or gestures, so that the life is more convenient and quick.
Currently, commonly used gesture recognition methods mainly comprise a capacitance detection recognition method, an infrared field detection recognition method and an infrared tube detection recognition method. The principle of the capacitance detection recognition method is that a metal sheet with a specific shape is arranged in a gesture sensing area, when an object approaches, an electric field near the metal sheet is caused to change, and a main control chip detects the capacitance change rule of the electric field, so that the movement direction or the stay position of the object is judged; the principle of the infrared field detection recognition method is that an infrared receiving tube array is adopted to receive infrared rays of objects in a detection range, the infrared receiving tube array feeds back the infrared fields, so that corresponding object outlines are formed, and then a main control chip judges current gesture actions of users according to the object outlines; the principle of the infrared tube detection recognition method is that a plurality of infrared transmitting tubes and infrared receiving tubes are arranged and are respectively used for judging different gesture action directions, when a detected object approaches one side, the infrared light intensity reflected by the object received by the infrared receiving tubes changes, and the movement direction or the stay position of the object is judged through the time sequence of signals fed back by the plurality of infrared receiving tubes.
However, the above-mentioned capacitive detection and recognition method is easily interfered by electric field and magnetic field, so that the reset or malfunction of the controlled object is caused, and it is difficult to pass the national standard ESD test in the home appliance industry; the infrared field detection and recognition method has higher accuracy on gesture recognition, but the infrared field detection and recognition method needs to use an infrared receiving tube array, so that the gesture recognition control device used by the method has the defects of high cost and high development difficulty; according to the infrared tube detection and recognition method, the plurality of infrared transmitting tubes and the infrared receiving tubes are required to be arranged for judging directions of different gesture actions respectively, namely, the method uses the plurality of pairs of separating devices to build the optical path system, optical path calculation is complex, optical paths are easy to interfere with each other, and therefore accuracy of gesture recognition by the method is low, and the gesture recognition control device used by the method is high in cost, large in size and unfavorable for product application.
Disclosure of Invention
The invention mainly aims to provide a gesture recognition control method of a range hood, which aims to ensure the accuracy of gesture recognition and reduce the cost and the volume of a gesture recognition control device of the range hood.
In order to achieve the above object, the present invention provides a gesture recognition control method for a range hood, the gesture recognition control method for a range hood comprising the steps of:
s10, controlling the lighting operation of a plurality of infrared LED lamps at preset positions by an infrared sensor according to a preset time sequence control rule so that the infrared LED lamps emit infrared light in the corresponding position directions;
s20, when gesture actions of a user sequentially cover corresponding infrared LED lamps, an infrared receiving tube in the infrared sensor sequentially receives infrared light reflected by the gesture actions;
s30, the MCU recognizes the gesture according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, generates a gesture command corresponding to the gesture, and outputs the gesture command to the main control panel of the range hood, so that the main control panel of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule.
Preferably, the number of the infrared LED lamps is three, namely a first infrared LED lamp, a second infrared LED lamp and a third infrared LED lamp, wherein the first infrared LED lamp, the second infrared LED lamp, the third infrared LED lamp and the infrared sensor are all arranged on the same plane, the first infrared LED lamp and the third infrared LED lamp are arranged on two opposite sides of a first direction of the infrared sensor, the second infrared LED lamp is arranged on one side of a second direction of the infrared sensor, and the second direction is perpendicular to the first direction.
In addition, in order to achieve the above purpose, the present invention also provides a gesture recognition control device of a range hood, where the gesture recognition control device of a range hood includes a plurality of infrared LED lamps at preset positions, an infrared sensor, a power supply, an MCU, a level conversion circuit module, and a gesture recognition control program of a range hood stored in the MCU and capable of running on the MCU, where:
the power supply is used for providing power supply voltage for the infrared sensor and the MCU;
the infrared sensor is used for controlling the lighting operation of the infrared LED lamps at a plurality of preset positions according to a preset time sequence control rule so that the infrared LED lamps emit infrared light in the corresponding position directions, and is used for sequentially receiving the infrared light reflected by the gesture actions when the gesture actions of the user sequentially shield the corresponding infrared LED lamps;
the gesture recognition control program of the range hood is executed by the MCU to realize the following steps:
according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, the gesture action is recognized, a gesture command corresponding to the gesture action is generated, and the gesture command is output to the main control board of the range hood, so that the main control board of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule;
and the level conversion circuit module is used for carrying out level conversion on the gesture command output by the MCU so as to enable the communication level of the MCU and the main control board of the range hood to be consistent.
Preferably, the number of the infrared LED lamps is three, namely a first infrared LED lamp, a second infrared LED lamp and a third infrared LED lamp, wherein the first infrared LED lamp, the second infrared LED lamp, the third infrared LED lamp and the infrared sensor are all arranged on the same plane, the first infrared LED lamp and the third infrared LED lamp are arranged on two opposite sides of a first direction of the infrared sensor, the second infrared LED lamp is arranged on one side of a second direction of the infrared sensor, and the second direction is perpendicular to the first direction.
Preferably, the infrared sensor is respectively connected with the first infrared LED lamp, the second infrared LED lamp and the third infrared LED lamp, the MCU is respectively connected with the infrared sensor and the input end of the level conversion circuit module, and the output end of the level conversion circuit module is connected with a main control board of the range hood; the power supply is connected with the power end of the infrared sensor and the power end of the MCU respectively.
Preferably, a first I2C interface of the MCU is connected to the infrared sensor, and a second I2C interface of the MCU is connected to an input terminal of the level conversion circuit module.
Preferably, the I2C interface of the MCU is connected to the infrared sensor, and the serial port of the MCU is connected to the input end of the level conversion circuit module.
In addition, in order to achieve the above purpose, the present invention further provides a readable storage medium, on which a gesture recognition control program of a range hood is stored, where the gesture recognition control program of the range hood is executed by an MCU to implement the gesture recognition control method of the range hood as described above.
In addition, in order to achieve the above purpose, the invention also provides a range hood, which comprises a gesture recognition control device of the range hood, wherein the gesture recognition control device of the range hood is the gesture recognition control device of the range hood.
The invention provides a gesture recognition control method of a range hood, which comprises the following steps: s10, controlling the lighting operation of a plurality of infrared LED lamps at preset positions by an infrared sensor according to a preset time sequence control rule so that the infrared LED lamps emit infrared light in the corresponding position directions; s20, when gesture actions of a user sequentially cover corresponding infrared LED lamps, an infrared receiving tube in the infrared sensor sequentially receives infrared light reflected by the gesture actions; s30, the MCU recognizes the gesture according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, generates a gesture command corresponding to the gesture, and outputs the gesture command to the main control panel of the range hood, so that the main control panel of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule. According to the gesture recognition control method of the range hood, the infrared sensors control the lighting operation of the infrared LED lamps at the plurality of preset positions according to the preset time sequence control rule, namely, the infrared sensors are only required to drive the lighting operation of the plurality of infrared LED lamps, and the MCU can recognize the gesture action of a user according to the time sequence of infrared light reflected by the gesture actions of the user, which is sequentially received by the infrared sensors, so that compared with an infrared field detection recognition method using an infrared receiving tube array and an infrared tube detection recognition method using a plurality of separation devices to build a light path system in the prior art, the cost and the volume of the gesture recognition control device of the range hood are greatly reduced while the gesture recognition accuracy is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of an embodiment of a gesture recognition control method of a range hood according to the present invention;
fig. 2 is a schematic functional mode diagram of an embodiment of a gesture recognition control device of a range hood according to the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides a gesture recognition control method of a range hood, which is used for solving the problems of high cost and large volume of the traditional infrared field detection recognition method using an infrared receiving tube array and the infrared tube detection recognition method using a plurality of separation devices to build a light path system.
Referring to fig. 1, in an embodiment, the gesture recognition control method of the range hood includes the following steps:
s10, controlling the lighting operation of a plurality of infrared LED lamps at preset positions by an infrared sensor according to a preset time sequence control rule so that the infrared LED lamps emit infrared light in the corresponding position directions;
specifically, the gesture recognition control method of the range hood includes that firstly, an infrared sensor controls the lighting operation of a plurality of infrared LED lamps at preset positions according to a preset time sequence control rule, so that the infrared LED lamps emit infrared light in the corresponding position directions. The number of the infrared LED lamps can be set according to practical situations, in this embodiment, the number of the infrared LED lamps is three, and the number of the infrared LED lamps is respectively a first infrared LED lamp, a second infrared LED lamp and a third infrared LED lamp, where the first infrared LED lamp, the second infrared LED lamp, the third infrared LED lamp and the infrared sensor are all arranged on the same plane, and on the plane, the first infrared LED lamp and the third infrared LED lamp are arranged on two opposite sides of a first direction of the infrared sensor, and the second infrared LED lamp is arranged on one side of a second direction of the infrared sensor, and the second direction is perpendicular to the first direction.
It may be appreciated that in other embodiments, the number of the infrared LED lamps may be four, that is, the infrared LED lamps are a first infrared LED lamp, a second infrared LED lamp, a third infrared LED lamp and a fourth infrared LED lamp, which are all disposed on the same plane, and the first infrared LED lamp and the third infrared LED lamp are disposed on opposite sides of a first direction of the infrared sensor, and the second infrared LED lamp and the fourth infrared LED lamp are disposed on opposite sides of a second direction of the infrared sensor, and the second direction is perpendicular to the first direction. In other embodiments, the number of the infrared LED lamps may be greater than four, for example, on the plane, two or more infrared LED lamps may be respectively disposed on two opposite sides of the first direction of the infrared sensor, and two or more infrared LED lamps may be respectively disposed on two opposite sides of the second direction of the infrared sensor.
It may be appreciated that the foregoing preset timing control rule may be set according to actual situations, in this embodiment, the preset timing control rule controls the first infrared LED lamp to be in a lighting state within 0ms to 50ms, controls the second infrared LED lamp to be in a lighting state within 51ms to 100ms, controls the third infrared LED lamp to be in a lighting state within 101ms to 150ms, and controls the first infrared LED lamp to be in a lighting state again within 151ms to 200ms, so that each infrared LED lamp is circularly lit, that is, in this embodiment, a control period of circularly lighting each infrared LED lamp is 150ms.
S20, when gesture actions of a user sequentially cover corresponding infrared LED lamps, an infrared receiving tube in the infrared sensor sequentially receives infrared light reflected by the gesture actions;
specifically, according to the gesture recognition control method of the range hood, after the infrared sensor controls the lighting operation of the infrared LED lamps at the plurality of preset positions according to the preset time sequence control rule, when gesture actions of a user sequentially shield the corresponding infrared LED lamps, the infrared receiving tube in the infrared sensor sequentially receives infrared light reflected by the gesture actions. For example, if the infrared receiving tube in the infrared sensor receives the reflected infrared light within 0ms to 50ms, it indicates that the hand of the user is located at the position of the first infrared LED lamp, if the infrared receiving tube in the infrared sensor receives the reflected infrared light within 51ms to 100ms, it indicates that the hand of the user is located at the position of the second infrared LED lamp, and if the infrared receiving tube in the infrared sensor receives the reflected infrared light within 101ms to 150ms, it indicates that the hand of the user is located at the position of the third infrared LED lamp, that is, according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, the gesture motion can be identified. That is, in this embodiment, the first infrared LED lamp and the third infrared LED lamp may be used to identify gesture motion in the left-right direction, and the second infrared LED lamp may be used to identify gesture motion in the up-down direction.
S30, the MCU recognizes the gesture according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, generates a gesture command corresponding to the gesture, and outputs the gesture command to the main control panel of the range hood, so that the main control panel of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule.
Specifically, according to the gesture recognition control method of the range hood of the present embodiment, the MCU recognizes the gesture according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor in the step S20, generates a gesture command corresponding to the gesture, and outputs the gesture command to the main control board of the range hood, so that the main control board of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule. In this embodiment, when the infrared receiving tube in the infrared sensor sequentially receives infrared light reflected back from the position direction of the first infrared LED lamp, the second infrared LED lamp and the third infrared LED lamp, it is determined that gesture movement of the user swings from left to right; when an infrared receiving tube in the infrared sensor sequentially receives infrared light reflected back from the position direction of the third infrared LED lamp, the second infrared LED lamp and the first infrared LED lamp, determining that gesture movement of a user swings from right to left; when an infrared receiving tube in the infrared sensor receives the infrared light reflected by the second infrared LED lamp firstly and then receives the infrared light reflected by the position direction of the first infrared LED lamp and the position direction of the third infrared LED lamp, determining that gesture movements of a user swing from top to bottom; when an infrared receiving tube in the infrared sensor receives infrared light reflected by the position direction of the first infrared LED lamp and the position direction of the third infrared LED lamp, and then receives infrared light reflected by the position direction of the second infrared LED lamp, determining that gesture movement of a user swings from bottom to top; when the infrared receiving tube in the infrared sensor continuously receives infrared light reflected back from the position directions of the first infrared LED lamp, the second infrared LED lamp and the third infrared LED lamp, the gesture action of the user is determined to be hovering action.
It can be appreciated that in this embodiment, the preset gesture control rule may be set according to an actual situation, for example, when the gesture of the user is a waving from top to bottom, the air extraction speed of the range hood is reduced; when the gesture action of the user is from bottom to top, increasing the exhaust speed of the range hood; when the gesture motion of the user swings from left to right, the range hood is controlled to be started, and when the gesture motion of the user swings from right to left, the range hood is controlled to be shut down; when the gesture of the user is a hovering action, the range hood is not processed.
According to the gesture recognition control method of the range hood, the infrared sensors control the lighting operation of the infrared LED lamps at the plurality of preset positions according to the preset time sequence control rule, namely, the infrared sensors are only required to drive the lighting operation of the plurality of infrared LED lamps, and the MCU can recognize the gesture action of a user according to the time sequence of infrared light reflected by the gesture actions of the user, which is sequentially received by the infrared sensors, so that compared with an infrared field detection recognition method using an infrared receiving tube array and an infrared tube detection recognition method using a plurality of separation devices to build a light path system in the prior art, the cost and the volume of the gesture recognition control device of the range hood are greatly reduced while the gesture recognition accuracy is ensured. Meanwhile, the integration level and reliability of the gesture recognition control device of the range hood are improved, the universality of the gesture recognition control device of the range hood is improved, and convenience is provided for intelligent control of kitchen appliances.
The invention also provides a gesture recognition control device of the range hood, referring to fig. 2, the gesture recognition control device 100 of the range hood comprises a plurality of infrared LED lamps 101 at preset positions, an infrared sensor 102, a power supply 103, an MCU 104, a level conversion circuit module 105 and a gesture recognition control program of the range hood stored in the MCU 104 and capable of running on the MCU 104.
In this embodiment, the power supply 103 is configured to provide a power supply voltage for the infrared sensor 102 and the MCU 104;
the infrared sensor 102 is configured to control the lighting operation of the infrared LED lamps 101 at a plurality of preset positions according to a preset timing control rule, so that the infrared LED lamps 101 at the plurality of preset positions emit infrared light in the corresponding position directions, and sequentially receive infrared light reflected by gesture actions of a user when the gesture actions sequentially shield the corresponding infrared LED lamps;
the gesture recognition control program of the range hood is executed by the MCU to realize the following steps:
according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor 102, the gesture action is recognized, a gesture command corresponding to the gesture action is generated, and the gesture command is output to the main control board 200 of the range hood, so that the main control board 200 of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule;
the level conversion circuit module 105 is configured to perform level conversion on the gesture command output by the MCU 104, so that the communication level between the MCU 104 and the main control board 200 of the range hood is consistent.
Specifically, in this embodiment, the number of the infrared LED lamps may be set according to actual situations, in this embodiment, the number of the infrared LED lamps is three, and is respectively a first infrared LED lamp 1011, a second infrared LED lamp 1012 and a third infrared LED lamp 1013, where the first infrared LED lamp 1011, the second infrared LED lamp 1012, the third infrared LED lamp 1013 and the infrared sensor 102 are all disposed on the same plane, and on the plane, the first infrared LED lamp 1011 and the third infrared LED lamp 1013 are disposed on two opposite sides of the first direction of the infrared sensor 102, and the second infrared LED lamp 1012 is disposed on one side of the second direction of the infrared sensor 102, and the second direction is perpendicular to the first direction.
It may be appreciated that in other embodiments, the number of the infrared LED lamps may be four, that is, the infrared LED lamps are a first infrared LED lamp, a second infrared LED lamp, a third infrared LED lamp and a fourth infrared LED lamp, which are all disposed on the same plane, and the first infrared LED lamp and the third infrared LED lamp are disposed on two opposite sides of a first direction of the infrared sensor, and the second infrared LED lamp and the fourth infrared LED lamp are disposed on two opposite sides of a second direction of the infrared sensor, and the second direction is perpendicular to the first direction. In other embodiments, the number of the infrared LED lamps may be greater than four, for example, on the plane, two or more infrared LED lamps may be respectively disposed on two opposite sides of the first direction of the infrared sensor, and two or more infrared LED lamps may be respectively disposed on two opposite sides of the second direction of the infrared sensor.
It may be appreciated that the foregoing preset timing control rule may be set according to actual situations, in this embodiment, the preset timing control rule controls the first infrared LED lamp to be in a lighting state within 0ms to 50ms, controls the second infrared LED lamp to be in a lighting state within 51ms to 100ms, controls the third infrared LED lamp to be in a lighting state within 101ms to 150ms, and controls the first infrared LED lamp to be in a lighting state again within 151ms to 200ms, so that each infrared LED lamp is circularly lit, that is, in this embodiment, a control period of circularly lighting each infrared LED lamp is 150ms.
It should be noted that, when the gesture recognition control device of the range hood of the embodiment is installed, the plane is a vertical plane facing the user, the first direction may be set as the X-axis direction, and the second direction is the Y-axis direction.
The infrared sensor 102 in the gesture recognition control device 100 of the range hood according to the embodiment is respectively connected with the first infrared LED lamp 1011, the second infrared LED lamp 1012 and the third infrared LED lamp 1013, the MCU 104 is respectively connected with the infrared sensor 102 and the input end of the level conversion circuit module 105, and the output end of the level conversion circuit module 105 is connected with the main control board 200 of the range hood; the power supply 103 is connected to the power supply end of the infrared sensor 102 and the power supply end of the MCU 104, respectively.
Specifically, in this embodiment, a first I2C interface (not shown) of the MCU 104 is connected to the infrared sensor 102, and a second I2C interface (not shown) of the MCU 104 is connected to an input terminal of the level conversion circuit module 105. In other embodiments, the I2C interface of the MCU 104 may be connected to the infrared sensor 102, and the serial port of the MCU 104 is connected to the input end of the level conversion circuit module 105.
After the infrared sensor 102 controls the first infrared LED lamp 1011, the second infrared LED lamp 1012 and the third infrared LED lamp 1012 according to a preset time sequence control rule, when the gesture of the user sequentially blocks the corresponding infrared LED lamps, the infrared receiving tube in the infrared sensor 102 sequentially receives the infrared light reflected by the gesture. For example, if the infrared receiving tube in the infrared sensor 102 receives the reflected infrared light within 0ms to 50ms, it indicates that the hand of the user is located at the position of the first infrared LED lamp 1011, if the infrared receiving tube in the infrared sensor 102 receives the reflected infrared light within 51ms to 100ms, it indicates that the hand of the user is located at the position of the second infrared LED lamp 1012, and if the infrared receiving tube in the infrared sensor 102 receives the reflected infrared light within 101ms to 150ms, it indicates that the hand of the user is located at the position of the third infrared LED lamp 103, that is, according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor 102, the gesture motion can be identified in this embodiment. That is, in the present embodiment, the first infrared LED lamp 1011 and the third infrared LED lamp 1013 may be used for recognizing a gesture in the left-right direction, and the second infrared LED lamp 1012 may be used for recognizing a gesture in the up-down direction.
The MCU 104 in the gesture recognition control device 100 of the present embodiment recognizes the gesture according to the sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor 102, generates a gesture command corresponding to the gesture, and outputs the gesture command to the main control board 200 of the range hood, so that the main control board 200 of the range hood controls the range hood to execute corresponding operations according to the gesture command and a preset gesture control rule. In this embodiment, when the infrared receiving tube in the infrared sensor 102 sequentially receives the infrared light reflected back from the direction of the positions of the first infrared LED lamp 1011, the second infrared LED lamp 1012 and the third infrared LED lamp 1013, it is determined that the gesture of the user swings from left to right; when the infrared receiving tube in the infrared sensor 102 sequentially receives the infrared light reflected back from the position direction of the third infrared LED lamp 1013, the second infrared LED lamp 1012, and the first infrared LED lamp 1011, it is determined that the gesture of the user swings from right to left; when the infrared receiving tube in the infrared sensor 102 receives the infrared light reflected by the second infrared LED lamp 1012 first and then receives the infrared light reflected by the first infrared LED lamp 1011 and the third infrared LED lamp 1013, it is determined that the gesture of the user swings from top to bottom; when the infrared receiving tube in the infrared sensor 102 receives the infrared light reflected by the position direction of the first infrared LED lamp 1011 and the third infrared LED lamp 1013, and then receives the infrared light reflected by the position direction of the second infrared LED lamp 1012, it determines that the gesture of the user swings from bottom to top; when the infrared receiving tube in the infrared sensor 102 continuously receives the infrared light reflected back from the position directions of the first infrared LED lamp 1011, the second infrared LED lamp 1012 and the third infrared LED lamp 1013, it is determined that the gesture motion of the user is a hover motion.
It can be appreciated that in this embodiment, the preset gesture control rule may be set according to an actual situation, for example, when the gesture of the user is a waving from top to bottom, the air extraction speed of the range hood is reduced; when the gesture action of the user is from bottom to top, increasing the exhaust speed of the range hood; when the gesture motion of the user swings from left to right, the range hood is controlled to be started, and when the gesture motion of the user swings from right to left, the range hood is controlled to be shut down; when the gesture of the user is a hovering action, the range hood is not processed.
In this embodiment, the size of the infrared sensor 102 may be set according to actual needs, in this embodiment, the size of the infrared sensor 102 is Si1153-AA09-GMR, and the infrared sensor 102 includes an infrared receiving tube, a 940nm optical filter, a high-precision ADC module, a signal processing module, an LED driving module, and I 2 And C module, the 940nm filter of the infrared sensor 102 can well block the interference of the ambient light. Because the filter inside the infrared sensor 102 is a 940nm filter, in this embodiment, the first infrared LED lamp 1011, the second infrared LED lamp 1012, and the third infrared LED lamp 1013 are all infrared LED tubes with wavelength of 940 nm.
In addition, since the infrared sensor 102 in the present embodiment has no internal ROM, in order to reduce the working pressure of the main control board 200 of the range hood, a main control chip, that is, the MCU 104 is provided in the present embodiment.
In this embodiment, the power supply voltage provided by the power supply 103 is 3.3V, and since the main control board 200 of the range hood is usually connected to the peripheral device by using 5V, the communication level between the MCU 104 and the main control board 200 of the range hood is inconsistent, in this embodiment, the level conversion circuit module 105 is provided, and the level conversion circuit module 105 is configured to perform the level conversion on the I of the MCU 104 2 And C, converting the communication level of the interface or the serial port, for example, converting the level of the gesture command, so that the communication level of the MCU 104 and the communication level of the main control board 200 of the range hood are consistent.
According to the gesture recognition control device of the range hood, the infrared sensors control the lighting operation of the infrared LED lamps at a plurality of preset positions according to the preset time sequence control rule, namely, the infrared sensors are only required to drive the lighting operation of the infrared LED lamps, and the MCU can recognize the gesture action of a user according to the time sequence of infrared light reflected by the gesture actions of the user, which is sequentially received by the infrared sensors, so that compared with an infrared field detection recognition method using an infrared receiving tube array and an infrared tube detection recognition method using a plurality of separation devices to build a light path system in the prior art, the cost and the volume of the gesture recognition control device of the range hood are greatly reduced while the gesture recognition accuracy is ensured. Meanwhile, the integration level and reliability of the gesture recognition control device of the range hood are improved, the universality of the gesture recognition control device of the range hood is improved, and convenience is provided for intelligent control of kitchen appliances.
The invention also provides a readable storage medium, the readable storage medium stores a gesture recognition control program of the range hood, and the gesture recognition control program of the range hood realizes the following operations when executed by the MCU 104:
and recognizing the gesture according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, generating a gesture command corresponding to the gesture, and outputting the gesture command to a main control board of the range hood so that the main control board of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule.
The invention also provides a range hood, which comprises a gesture recognition control device of the range hood, and the structure and the working principle of the control device of the cooking machine can refer to the embodiment, and the description is omitted here. It should be noted that, because the range hood of the present embodiment adopts the technical scheme of the gesture recognition control device of the range hood, the range hood has all the beneficial effects of the gesture recognition control device of the range hood.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (9)
1. The gesture recognition control method of the range hood is characterized by comprising the following steps of:
s10, controlling the lighting work of a plurality of infrared LED lamps at preset positions by an infrared sensor according to a preset time sequence control rule, and circularly lighting the plurality of infrared LED lamps so that the infrared LED lamps emit infrared light in the corresponding position directions;
s20, when gesture actions of a user sequentially cover corresponding infrared LED lamps, an infrared receiving tube in the infrared sensor sequentially receives infrared light reflected by the gesture actions;
s30, the MCU recognizes the gesture according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, generates a gesture command corresponding to the gesture, and outputs the gesture command to the main control panel of the range hood, so that the main control panel of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule.
2. The gesture recognition control method of the range hood according to claim 1, wherein the number of the infrared LED lamps is three, and the number of the infrared LED lamps is a first infrared LED lamp, a second infrared LED lamp and a third infrared LED lamp, wherein the first infrared LED lamp, the second infrared LED lamp, the third infrared LED lamp and the infrared sensor are all arranged on the same plane, the first infrared LED lamp and the third infrared LED lamp are arranged on two opposite sides of a first direction of the infrared sensor, the second infrared LED lamp is arranged on one side of a second direction of the infrared sensor, and the second direction is perpendicular to the first direction.
3. The utility model provides a gesture recognition controlling means of lampblack absorber, its characterized in that, gesture recognition controlling means of lampblack absorber includes infrared LED lamp, infrared sensor, power supply, MCU, level conversion circuit module and the storage in MCU and can be in the gesture recognition control program of lampblack absorber of operation on the MCU of a plurality of preset positions, wherein:
the power supply is used for providing power supply voltage for the infrared sensor and the MCU;
the infrared sensor is used for controlling the lighting operation of the infrared LED lamps at a plurality of preset positions according to a preset time sequence control rule so that the infrared LED lamps emit infrared light in the corresponding position directions, and is used for sequentially receiving the infrared light reflected by the gesture actions when the gesture actions of the user sequentially shield the corresponding infrared LED lamps;
the gesture recognition control program of the range hood is executed by the MCU to realize the following steps:
according to the time sequence of the reflected infrared light sequentially received by the infrared receiving tube in the infrared sensor, the gesture action is recognized, a gesture command corresponding to the gesture action is generated, and the gesture command is output to the main control board of the range hood, so that the main control board of the range hood controls the range hood to execute corresponding work according to the gesture command and a preset gesture control rule;
and the level conversion circuit module is used for carrying out level conversion on the gesture command output by the MCU so as to enable the communication level of the MCU and the main control board of the range hood to be consistent.
4. The gesture recognition control device of the range hood according to claim 3, wherein the number of the infrared LED lamps is three, and the number of the infrared LED lamps is a first infrared LED lamp, a second infrared LED lamp and a third infrared LED lamp, wherein the first infrared LED lamp, the second infrared LED lamp, the third infrared LED lamp and the infrared sensor are all arranged on the same plane, the first infrared LED lamp and the third infrared LED lamp are arranged on two opposite sides of a first direction of the infrared sensor, the second infrared LED lamp is arranged on one side of a second direction of the infrared sensor, and the second direction is perpendicular to the first direction.
5. The gesture recognition control device of the range hood according to claim 4, wherein the infrared sensor is respectively connected with the first infrared LED lamp, the second infrared LED lamp and the third infrared LED lamp, the MCU is respectively connected with the infrared sensor and the input end of the level conversion circuit module, and the output end of the level conversion circuit module is connected with a main control board of the range hood; the power supply is connected with the power end of the infrared sensor and the power end of the MCU respectively.
6. The gesture recognition control device of the range hood according to claim 4 or 5, wherein a first I2C interface of the MCU is connected to the infrared sensor, and a second I2C interface of the MCU is connected to an input terminal of the level conversion circuit module.
7. The gesture recognition control device of the range hood according to claim 4 or 5, wherein an I2C interface of the MCU is connected to the infrared sensor, and a serial port of the MCU is connected to an input end of the level conversion circuit module.
8. A readable storage medium, wherein a gesture recognition control program of a range hood is stored on the readable storage medium, and the gesture recognition control program of the range hood is executed by an MCU to realize the following steps:
according to the time sequence of the infrared light reflected by the infrared receiving tube in the infrared sensor, gesture actions are recognized, gesture commands corresponding to the gesture actions are generated, and the gesture commands are output to the main control board of the range hood, so that the main control board of the range hood controls the range hood to execute corresponding work according to the gesture commands and preset gesture control rules.
9. A range hood, characterized in that the range hood comprises a gesture recognition control device of the range hood, and the gesture recognition control device of the range hood is the gesture recognition control device of the range hood according to any one of claims 3 to 7.
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| CN201810066063.5A CN108107796B (en) | 2018-01-23 | 2018-01-23 | Range hood, gesture recognition control method and device thereof and readable storage medium |
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| CN201810066063.5A CN108107796B (en) | 2018-01-23 | 2018-01-23 | Range hood, gesture recognition control method and device thereof and readable storage medium |
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| CN111487878B (en) * | 2019-01-29 | 2024-05-14 | 迪尔阿扣基金两合公司 | Gesture control module and household appliance with gesture control module |
| CN110456913A (en) * | 2019-08-21 | 2019-11-15 | 华帝股份有限公司 | Infrared gesture action recognition method and device |
| CN110486768A (en) * | 2019-09-04 | 2019-11-22 | 江西联创南分科技有限公司 | A kind of colorful LED display module of infrared gesture identification control |
| CN110736117A (en) * | 2019-09-11 | 2020-01-31 | 华帝股份有限公司 | Gesture recognition control method of range hoods |
| CN110608984A (en) * | 2019-09-25 | 2019-12-24 | 佛山市顺德区美的洗涤电器制造有限公司 | Oil smoke detection component and kitchen appliance |
| CN111726708B (en) * | 2019-10-10 | 2022-05-03 | 广东小天才科技有限公司 | Camera rotation control method based on lamp strip, intelligent sound box and storage medium |
| CN110989834B (en) * | 2019-11-26 | 2022-12-23 | 广东美的厨房电器制造有限公司 | Cooking equipment and gesture control method thereof |
| CN112244705B (en) * | 2020-09-10 | 2023-05-23 | 北京石头创新科技有限公司 | Intelligent cleaning device, control method and computer storage medium |
| CN113768692B (en) * | 2021-09-08 | 2024-02-02 | 武汉威和光电股份有限公司 | Welding mask based on photosensitive adjustment working parameters and adjustment method thereof |
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