CN110986130B - Self-adaptive gesture control method of range hood - Google Patents
Self-adaptive gesture control method of range hood Download PDFInfo
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- CN110986130B CN110986130B CN201911325233.8A CN201911325233A CN110986130B CN 110986130 B CN110986130 B CN 110986130B CN 201911325233 A CN201911325233 A CN 201911325233A CN 110986130 B CN110986130 B CN 110986130B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
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Classifications
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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
- F24C15/2021—Arrangement or mounting of control or safety systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a self-adaptive gesture control method of a range hood, which comprises a control module, a first infrared transmitting and receiving module, a second infrared transmitting and receiving module and an ultrasonic module, wherein the control method comprises the following steps: controlling the first infrared transmitting and receiving module and the second infrared transmitting and receiving module to work; judging whether the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals or not; if the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals, detecting gesture distance through the ultrasonic module; and adjusting the infrared transmitting distance of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to the detected gesture distance. The gesture judging method and the gesture judging device can improve accuracy of gesture judgment to a certain extent and improve use experience of a user.
Description
Technical Field
The invention relates to the technical field of range hoods, in particular to a self-adaptive gesture control method of a range hood.
Background
In the related art, the gesture function of the traditional range hood is easily influenced by other light sources, and when the traditional range hood is influenced by infrared light irradiation, the gesture function is too short or too long, so that the accuracy of gesture judgment is reduced. In addition, false triggering is easy to occur, and the use experience of the user is greatly influenced.
Disclosure of Invention
The invention aims to solve at least one of the problems in the prior art to a certain extent, and therefore the invention aims to provide a self-adaptive gesture control method of a range hood, which can improve the accuracy of gesture judgment to a certain extent and improve the use experience of a user.
The above purpose is realized by the following technical scheme:
a self-adaptive gesture control method of a range hood comprises a control module, a first infrared transmitting and receiving module, a second infrared transmitting and receiving module and an ultrasonic module, wherein the control module is electrically connected with the first infrared transmitting and receiving module, the second infrared transmitting and receiving module and the ultrasonic module respectively, and the control method comprises the following steps:
controlling the first infrared transmitting and receiving module and the second infrared transmitting and receiving module to work;
judging whether the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals or not;
if the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals, detecting gesture distance through the ultrasonic module;
and adjusting the infrared transmitting distance of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to the detected gesture distance.
In some embodiments, if the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals, the step of detecting the gesture distance by the ultrasonic module specifically includes:
judging whether the first infrared transmitting and receiving module receives a corresponding infrared signal;
if the first infrared transmitting and receiving module receives the corresponding infrared signal, judging whether the second infrared transmitting module receives the corresponding infrared signal;
if the second infrared transmitting and receiving module receives the corresponding infrared signal, judging whether the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the second infrared transmitting module receiving the corresponding infrared signal is less than the preset time;
and if the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the time interval between the second infrared transmitting and receiving module receiving the corresponding infrared signal is less than the preset time, detecting the gesture distance through the ultrasonic module.
In some embodiments, the step of adjusting the infrared transmission distance between the first infrared transmission and reception module and the second infrared transmission and reception module according to the detected gesture distance specifically includes:
judging whether the detected gesture distance is greater than a first preset distance or not;
if the detected gesture distance is greater than a first preset distance, reducing the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module;
and if the detected gesture distance is smaller than a first preset distance, judging whether the detected gesture distance is larger than a second preset distance, and adjusting the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to a judgment result, wherein the first preset distance is larger than the second preset distance.
In some embodiments, the step of adjusting the infrared emission distance between the first infrared emission and reception module and the second infrared emission and reception module according to the determination result specifically includes:
if the detected gesture distance is greater than a second preset distance, controlling the first infrared transmitting and receiving module and the second infrared transmitting and receiving module to maintain the current working state;
and if the detected gesture distance is smaller than a second preset distance, increasing the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module.
In some embodiments, each of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module includes a resistor assembly, an infrared light emitting diode, and a transistor, wherein the resistor assembly, the infrared light emitting diode, and the transistor are connected in sequence, and the resistor assembly includes a plurality of resistors connected in parallel;
reducing the infrared emission distance of the first infrared emission receiving module and the second infrared emission receiving module by reducing the number of resistors connected in parallel in the resistor assembly;
the infrared emission distance of the first infrared emission receiving module and the second infrared emission receiving module is increased by increasing the number of resistors connected in parallel in the resistor assembly.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the self-adaptive gesture control method of the range hood can improve the accuracy of gesture judgment to a certain extent and improve the use experience of users.
Drawings
FIG. 1 is a block diagram of the electrical circuitry of a range hood in an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a control method according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an infrared transmitting and receiving module in an embodiment of the invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
The first embodiment is as follows: as shown in fig. 1, 2 and 3, the present embodiment provides a self-adaptive gesture control method for a range hood, including a control module, a first infrared transmitting and receiving module, a second infrared transmitting and receiving module and an ultrasonic module, where the control module is electrically connected to the first infrared transmitting and receiving module, the second infrared transmitting and receiving module and the ultrasonic module respectively, the first infrared transmitting and receiving module and the second infrared transmitting and receiving module are responsible for transmitting and receiving infrared, the ultrasonic module is responsible for generating and receiving ultrasonic waves, the control module is responsible for calculating a distance according to ultrasonic transmitting and receiving times, controlling infrared receiving and transmitting, and making a judgment and sending instruction through an internal algorithm;
the control method comprises the following steps:
controlling a first infrared transmitting and receiving module and a second infrared transmitting and receiving module to work, specifically, controlling the first infrared transmitting and receiving module and the second infrared transmitting and receiving module to transmit infrared signals and continuously receive the infrared signals;
judging whether the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals or not;
if the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals, detecting the gesture distance through the ultrasonic module;
and adjusting the infrared transmitting distance of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to the detected gesture distance.
According to the self-adaptive gesture control method, the accuracy of gesture judgment can be improved to a certain extent, and the use experience of a user is improved.
Specifically, according to the adaptive gesture control method of the embodiment, the infrared transmitting distances of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module can be adaptively adjusted according to the transmitting and receiving of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module and the gesture distance measured by the ultrasonic module, so that the first infrared transmitting and receiving module and the second infrared transmitting and receiving module can more accurately receive and judge gestures, false triggering can be reduced, accurate detection and judgment can be performed on user gestures, the method has extremely strong anti-interference performance, the accuracy and stability of judgment on the user gestures are greatly improved, and the false triggering probability is reduced.
In this embodiment, if the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals, the step of detecting the gesture distance through the ultrasonic module specifically includes:
judging whether the first infrared transmitting and receiving module receives the corresponding infrared signal, namely judging whether the first infrared transmitting and receiving module successfully receives the infrared signal sent by the first infrared transmitting and receiving module;
if the first infrared transmitting and receiving module receives the corresponding infrared signal, judging whether the second infrared transmitting module receives the corresponding infrared signal, namely judging whether the second infrared transmitting and receiving module successfully receives the infrared signal sent by the second infrared transmitting and receiving module, and if the first infrared transmitting and receiving module cannot receive the corresponding infrared signal, controlling the first infrared transmitting and receiving module to continuously receive the corresponding infrared signal;
if the second infrared transmitting and receiving module receives the corresponding infrared signal, judging whether the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the second infrared transmitting and receiving module receiving the corresponding infrared signal is less than the preset time, and if the second infrared transmitting and receiving module cannot receive the corresponding infrared signal, controlling the second infrared transmitting and receiving module to continuously receive the corresponding infrared signal;
if the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the time interval between the second infrared transmitting and receiving module receiving the corresponding infrared signal is less than the preset time, detecting the gesture distance through the ultrasonic module, assuming that the preset time is 1s, when the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the time interval between the second infrared transmitting and receiving module receiving the corresponding infrared signal is less than 1s, detecting the gesture distance through the ultrasonic module, and when the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the time interval between the second infrared transmitting and receiving module receiving the corresponding infrared signal is greater than 1s, controlling the first infrared transmitting and receiving module to continuously receive the corresponding infrared signal, namely, redetecting whether a user gesture exists and/or judging the user gesture.
In this embodiment, the step of adjusting the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to the detected gesture distance specifically includes:
judging whether the detected gesture distance is greater than a first preset distance or not;
if the detected gesture distance is larger than a first preset distance, reducing the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module;
and if the detected gesture distance is smaller than a first preset distance, judging whether the detected gesture distance is larger than a second preset distance, and adjusting the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to a judgment result, wherein the first preset distance is larger than the second preset distance.
Assuming that the gesture detection distance range of the range hood is 0-16cm, the first preset distance is 16cm, and the second preset distance is 10cm, when the detected gesture distance is greater than 16cm, the infrared emission distances of the first infrared emission receiving module and the second infrared emission receiving module are reduced, specifically, when the detected gesture distance is greater than 16cm, it indicates that false triggering exists or the distance exceeds a specified range, at this time, the infrared emission distances of the first infrared emission receiving module and the second infrared emission receiving module need to be reduced, so that the accuracy of gesture detection and judgment is improved, and false triggering is avoided.
When the detected gesture distance is smaller than 16cm, whether the detected gesture distance is larger than 10cm or not is judged, and the infrared transmitting distance between the first infrared transmitting and receiving module and the infrared transmitting and receiving module is adjusted according to the judgment result, so that the infrared transmitting distance between the first infrared transmitting and receiving module and the infrared transmitting and receiving module can be adjusted more accurately, and the accuracy of gesture detection and judgment is improved.
Preferably, the step of adjusting the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to the judgment result specifically comprises:
if the detected gesture distance is larger than a second preset distance, controlling the first infrared transmitting and receiving module and the second infrared transmitting and receiving module to maintain the current working state;
and if the detected gesture distance is smaller than a second preset distance, increasing the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module.
In this embodiment, when the detected gesture distance is less than 10cm, it indicates that the receiving distances of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module are too short, so that the infrared transmitting distances of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module need to be increased, and the infrared receiving distances of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module are also increased, so as to improve the accuracy of gesture detection and judgment.
When the detected gesture distance is larger than 10cm and smaller than 16cm, the gesture function of the range hood is normal, and the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module does not need to be adjusted.
In this embodiment, each of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module includes a resistor assembly, an infrared light emitting diode, and a transistor, where the resistor assembly, the infrared light emitting diode, and the transistor are sequentially connected, the resistor assembly includes a plurality of resistors connected in parallel, and as shown in fig. 3, the resistor assembly includes a resistor R13, a resistor R14, and a resistor R15;
the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module is reduced by reducing the number of resistors connected in parallel in the resistor assembly;
the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module is increased by increasing the number of resistors connected in parallel in the resistor assembly.
Referring to fig. 3, the resistor R13, the resistor R14, and the resistor R15 are emitting resistors, and the voltage of the infrared light emitting diode LED9 can be changed by changing the number of the three resistors connected in parallel, so as to change the emitting power and the emitting distance, wherein the smaller the number of the resistors connected in parallel in the resistor assembly, the weaker the emitting power is, and the stronger the emitting power is otherwise. And IT is used for controlling the emission angle, when the IT is in a high level, the circuit is conducted to emit infrared rays, and when the IT is in a low level, the circuit is closed to not emit infrared rays.
In this embodiment, after the range hood is powered on, the first infrared transmitting and receiving module, the second infrared transmitting and receiving module and the ultrasonic module start to work, when a user waves his hand, when the first infrared transmitting and receiving module and the second infrared transmitting and receiving module respectively receive infrared rays, which represents that there is a hand waving or a false trigger, the gesture distance detected by the ultrasonic module is judged at this time, when the detected gesture distance is greater than 16cm, it represents that there is a false trigger or the gesture distance exceeds a specified range, at this time, the number of parallel resistors of resistor components in the infrared transmitting and receiving module is reduced through the control module, so that the transmitting power of the infrared transmitting and receiving module is reduced, and the infrared transmitting and receiving module operates with smaller transmitting power; when the detected gesture distance is less than 16cm, continuously judging whether the detected gesture distance is more than 10cm, when the detected gesture distance is less than 10cm, indicating that the receiving distance of the infrared transmitting and receiving module is too short, and the number of parallel resistors needs to be increased to increase the transmitting power, namely, the number of the parallel resistors of the resistor components in the infrared transmitting and receiving module is increased through the control module, so that the transmitting power of the infrared transmitting and receiving module is increased, and the infrared transmitting and receiving module operates at higher transmitting power; when the detected gesture distance is between 10 and 16cm, the gesture function of the range hood is normal, and the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module does not need to be adjusted, namely the number of parallel resistors of the resistor components in the infrared transmitting and receiving modules does not need to be adjusted.
According to the self-adaptive gesture control method, the purpose of adjusting the transmitting power and the infrared transmitting distance/infrared receiving distance of the infrared transmitting and receiving module is achieved by adjusting the number of resistors connected in parallel in the resistor components in the infrared transmitting and receiving module according to the transmitting and receiving of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module and combining the gesture distance measured by the ultrasonic module, so that the first infrared transmitting and receiving module and the second infrared transmitting and receiving module can more accurately receive and judge gestures and can reduce false triggering, accurate detection and judgment can be carried out on user gestures, the self-adaptive gesture control method has extremely strong anti-interference performance, the accuracy and the stability of judgment on the user gestures are greatly improved, and the false triggering probability is reduced.
What has been described above are merely some of the embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (5)
1. A self-adaptive gesture control method of a range hood is characterized by comprising a control module, a first infrared transmitting and receiving module, a second infrared transmitting and receiving module and an ultrasonic module, wherein the control module is electrically connected with the first infrared transmitting and receiving module, the second infrared transmitting and receiving module and the ultrasonic module respectively, and the control method comprises the following steps:
controlling the first infrared transmitting and receiving module and the second infrared transmitting and receiving module to work;
judging whether the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals or not;
if the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals, detecting gesture distance through the ultrasonic module;
and adjusting the infrared transmitting distance of the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to the detected gesture distance.
2. The adaptive gesture control method of a range hood according to claim 1, wherein if the first infrared transmitting and receiving module and the second infrared transmitting and receiving module receive corresponding infrared signals, the step of detecting the gesture distance through the ultrasonic module specifically comprises:
judging whether the first infrared transmitting and receiving module receives a corresponding infrared signal;
if the first infrared transmitting and receiving module receives the corresponding infrared signal, judging whether the second infrared transmitting module receives the corresponding infrared signal;
if the second infrared transmitting and receiving module receives the corresponding infrared signal, judging whether the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the second infrared transmitting module receiving the corresponding infrared signal is less than the preset time;
and if the time interval between the first infrared transmitting and receiving module receiving the corresponding infrared signal and the time interval between the second infrared transmitting and receiving module receiving the corresponding infrared signal is less than the preset time, detecting the gesture distance through the ultrasonic module.
3. The self-adaptive gesture control method of the range hood according to claim 1 or 2, wherein the step of adjusting the infrared transmitting distance of the first infrared transmitting and receiving module and the infrared transmitting and receiving distance of the second infrared transmitting and receiving module according to the detected gesture distance specifically comprises the steps of:
judging whether the detected gesture distance is greater than a first preset distance or not;
if the detected gesture distance is greater than a first preset distance, reducing the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module;
and if the detected gesture distance is smaller than a first preset distance, judging whether the detected gesture distance is larger than a second preset distance, and adjusting the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module according to a judgment result, wherein the first preset distance is larger than the second preset distance.
4. The self-adaptive gesture control method of a range hood according to claim 3, wherein the step of adjusting the infrared emission distance of the first infrared emission receiving module and the second infrared emission receiving module according to the judgment result specifically comprises:
if the detected gesture distance is greater than a second preset distance, controlling the first infrared transmitting and receiving module and the second infrared transmitting and receiving module to maintain the current working state;
and if the detected gesture distance is smaller than a second preset distance, increasing the infrared transmitting distance between the first infrared transmitting and receiving module and the second infrared transmitting and receiving module.
5. The self-adaptive gesture control method of a range hood according to claim 4, wherein the first infrared transmitting and receiving module and the second infrared transmitting and receiving module each comprise a resistor assembly, an infrared light emitting diode and a triode, wherein the resistor assembly, the infrared light emitting diode and the triode are connected in sequence, and the resistor assembly comprises a plurality of resistors connected in parallel;
reducing the infrared emission distance of the first infrared emission receiving module and the second infrared emission receiving module by reducing the number of resistors connected in parallel in the resistor assembly;
the infrared emission distance of the first infrared emission receiving module and the second infrared emission receiving module is increased by increasing the number of resistors connected in parallel in the resistor assembly.
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| CN111623392A (en) * | 2020-04-13 | 2020-09-04 | 华帝股份有限公司 | Cigarette machine with gesture recognition assembly and control method thereof |
| CN111623391A (en) * | 2020-04-13 | 2020-09-04 | 华帝股份有限公司 | Range hood with induction distance adjusting device and control method thereof |
| CN111981537B (en) * | 2020-08-14 | 2022-11-15 | 华帝股份有限公司 | Self-adaptive control method of non-contact range hood |
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