CN106020486B - Control method, device and equipment of infrared gesture recognition device - Google Patents
Control method, device and equipment of infrared gesture recognition device Download PDFInfo
- Publication number
- CN106020486B CN106020486B CN201610383264.9A CN201610383264A CN106020486B CN 106020486 B CN106020486 B CN 106020486B CN 201610383264 A CN201610383264 A CN 201610383264A CN 106020486 B CN106020486 B CN 106020486B
- Authority
- CN
- China
- Prior art keywords
- infrared
- gesture recognition
- value
- recognition device
- signal intensity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/20—Movements or behaviour, e.g. gesture recognition
- G06V40/28—Recognition of hand or arm movements, e.g. recognition of deaf sign language
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Health & Medical Sciences (AREA)
- Psychiatry (AREA)
- Social Psychology (AREA)
- Multimedia (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The invention provides a control method of an infrared gesture recognition device, the infrared gesture recognition device and equipment, wherein the control method of the infrared gesture recognition device comprises the following steps: calculating an average of a plurality of signal intensity values in an intensity value curve of the infrared reflection signal over a period of time; and adjusting the duty ratio of an infrared emission tube of the infrared gesture recognition device according to the average value. According to the technical scheme, the duty ratio of the infrared transmitting tube is adjusted according to the distance between the user and the infrared gesture recognition device, so that the power consumption of the infrared gesture recognition device can be reduced, the accuracy of the infrared gesture recognition device in recognizing gesture actions can be improved, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of cooking appliances, in particular to a control method of an infrared gesture recognition device, the infrared gesture recognition device and equipment.
Background
In the related art, a low-cost infrared gesture recognition device is constructed by two or three infrared emission tubes, photodiodes and gesture sensing chips. Firstly, the infrared transmitting tube emits modulated infrared light outwards, then the modulated infrared light is reflected back to the photodiode through an external object (such as a hand of a user), the photodiode converts a received optical signal into an electric signal and compares the electric signal with a signal of the other compensating tube and then transmits the electric signal to the gesture sensing chip, and the gesture sensing chip recognizes gesture actions according to the change trend and the change quantity of the signal.
However, if the user is close to the infrared gesture recognition device, the power consumption of the infrared gesture recognition device is increased if the power of the infrared gesture recognition device is kept unchanged. When the user is close to the infrared gesture recognition device, the intensity value of the received infrared reflection signal is large, and when the user performs gesture actions, the variation of the infrared reflection signal is not enough to recognize the gesture actions of the user, so that the experience of the user is influenced.
Therefore, how to reduce the power consumption of the infrared gesture recognition apparatus and accurately and effectively recognize the gesture motion of the user becomes a technical problem to be solved urgently.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the invention aims to provide a control method of an infrared gesture recognition device.
The invention also aims to provide an infrared gesture recognition device.
It is a further object of the invention to propose a device.
To achieve at least one of the above objects, according to an embodiment of a first aspect of the present invention, a control method of an infrared gesture recognition apparatus is provided, including: calculating an average of a plurality of signal intensity values in an intensity value curve of the infrared reflection signal over a period of time; and adjusting the duty ratio of an infrared emission tube of the infrared gesture recognition device according to the average value.
According to the control method of the infrared gesture recognition device, the average value of the signal intensity values in the intensity value curve of the infrared reflection signal reflects the distance between the user and the infrared gesture recognition device, so that when the user is close to the infrared gesture recognition device, the duty ratio of the infrared emission tube is reduced to reduce the driving current of the infrared emission tube, the power of the infrared emission tube is reduced, the intensity of infrared rays emitted by the infrared emission tube is reduced, and when the user performs gesture actions again, the change amplitude of the intensity value of the received infrared reflection signal is obvious, so that the gesture actions performed by the user can be accurately recognized. And when the power of the infrared transmitting tube is reduced, the power consumption of the infrared gesture recognition device is reduced. In addition, when the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased, the driving current of the infrared emission tube is increased, the power of the infrared emission tube is increased, the intensity of infrared rays emitted by the infrared emission tube is improved, and when the user performs gesture actions again, the gesture actions which cannot be recognized by the user due to the fact that the intensity value of the received infrared reflection signals is weak are avoided, so that when the user is far away from the infrared gesture recognition device, the gesture actions performed by the user can still be recognized.
The control method of the infrared gesture recognition device according to the above embodiment of the present invention may further have the following technical features:
according to an embodiment of the present invention, further comprising: judging whether the difference value of each signal intensity value in the plurality of signal intensity values and the average value is smaller than a first preset value or not; and if the difference value between K signal intensity values in the plurality of signal intensity values and the average value is smaller than the first preset value, adjusting the duty ratio of the infrared emission tube according to the average value, wherein K is a positive integer larger than 1.
According to the control method of the infrared gesture recognition device, if the difference value between the K signal intensity values and the average value of the K signal intensity values is smaller than the first preset value, the intensity value curve is stable, further the distance between a user and the infrared gesture recognition device is stable, the duty ratio of the infrared emission tube is adjusted, and the accuracy of gesture recognition is further guaranteed. Otherwise, the fluctuation of the intensity value curve is relatively large, and further the distance between the user and the infrared gesture recognition device is changed, the duty ratio of the infrared emission tube is not adjusted, so that the situation that the duty ratio of the infrared emission tube is increased when the user is close to the infrared gesture recognition device is avoided, the situation that the duty ratio of the infrared emission tube is reduced when the user is far away from the infrared gesture recognition device is avoided, and the reliability of gesture recognition is ensured.
According to an embodiment of the invention, the K signal intensity values are continuous in the intensity value curve.
According to the control method of the infrared gesture recognition device, the K signal intensity values are continuous in the intensity value curve, and the reliability and the accuracy of gesture recognition are further guaranteed.
According to an embodiment of the present invention, the step of adjusting the duty ratio of the infrared emission tube of the infrared gesture recognition apparatus according to the average value specifically includes: if the average value is larger than a second preset value, reducing the duty ratio of the infrared emission tube; and if the average value is smaller than a third preset value, increasing the duty ratio of the infrared emission tube, wherein the second preset value is larger than the third preset value.
According to the control method of the infrared gesture recognition device, if the average value is larger than the second preset value, the received infrared reflection signal strength value is larger, and the user is closer to the infrared gesture recognition device, the duty ratio of the infrared emission tube is reduced, so that the infrared intensity emitted by the infrared emission tube is reduced; if the average value is smaller than the third preset value, the intensity value of the received infrared reflection signal is smaller, and the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased, so that the intensity of infrared rays emitted by the infrared emission tube is increased, and the reliability of the infrared gesture recognition device in recognizing gesture actions is improved.
According to an embodiment of the present invention, further comprising: judging whether the intensity value curve has a rising curve section or not; if the rising curve segment exists in the intensity value curve, determining the plurality of signal intensity values according to the signal intensity values in the rising curve segment; and if the rising curve segment does not exist in the intensity value curve, determining the plurality of signal intensity values according to the signal intensity values of the intensity value curve.
According to the control method of the infrared gesture recognition device, if the intensity value curve does not have the rising curve section, all the signal intensity values in the intensity value curve are taken as the plurality of signal intensity values, and if the rising curve section exists, the first N signal intensity values in the rising curve section are taken as the plurality of signal intensity values, so that the obtained plurality of signal intensity values can accurately reflect the distance between the user and the infrared gesture recognition device.
According to an embodiment of the second aspect of the present invention, there is provided an infrared gesture recognition apparatus including: a calculation unit for calculating an average value of a plurality of signal intensity values in an intensity value curve of the infrared reflection signal over a period of time; and the adjusting unit is used for adjusting the duty ratio of an infrared transmitting tube of the infrared gesture recognition device according to the average value.
According to the infrared gesture recognition device provided by the embodiment of the invention, as the average value of a plurality of signal intensity values in the intensity value curve of the infrared reflection signal reflects the distance from a user to the infrared gesture recognition device, when the user is closer to the infrared gesture recognition device, the duty ratio of the infrared emission tube is reduced to reduce the driving current of the infrared emission tube, so that the power of the infrared emission tube is reduced, the intensity of infrared rays emitted by the infrared emission tube is reduced, and at the moment, when the user performs gesture actions again, the change amplitude of the intensity value of the received infrared reflection signal is obvious, so that the gesture actions performed by the user can be accurately recognized. And when the power of the infrared transmitting tube is reduced, the power consumption of the infrared gesture recognition device is reduced. In addition, when the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased, the driving current of the infrared emission tube is increased, the power of the infrared emission tube is increased, the intensity of infrared rays emitted by the infrared emission tube is improved, and when the user performs gesture actions again, the gesture actions which cannot be recognized by the user due to the fact that the intensity value of the received infrared reflection signals is weak are avoided, so that when the user is far away from the infrared gesture recognition device, the gesture actions performed by the user can still be recognized.
According to an embodiment of the present invention, further comprising: the first judging unit is used for judging whether the difference value of each signal intensity value in the plurality of signal intensity values and the average value is smaller than a first preset value or not; if the first judging unit judges that the difference value between K signal intensity values in the plurality of signal intensity values and the average value is smaller than the first preset value, the adjusting unit adjusts the duty ratio of the infrared emission tube according to the average value, wherein K is a positive integer larger than 1.
According to the infrared gesture recognition device provided by the embodiment of the invention, if the difference value between the K signal intensity values and the average value thereof in the plurality of signal intensity values is smaller than the first preset value, the intensity value curve is relatively stable, further the distance between a user and the infrared gesture recognition device is relatively stable, the duty ratio of the infrared emission tube is adjusted, and the accuracy of gesture recognition is further ensured. Otherwise, the fluctuation of the intensity value curve is relatively large, and further the distance between the user and the infrared gesture recognition device is changed, the duty ratio of the infrared emission tube is not adjusted, so that the situation that the duty ratio of the infrared emission tube is increased when the user is close to the infrared gesture recognition device is avoided, the situation that the duty ratio of the infrared emission tube is reduced when the user is far away from the infrared gesture recognition device is avoided, and the reliability of gesture recognition is ensured.
According to an embodiment of the invention, the K signal intensity values are continuous in the intensity value curve.
According to the infrared gesture recognition device provided by the embodiment of the invention, the K signal intensity values are continuous in the intensity value curve, so that the reliability and the accuracy of gesture recognition are further ensured.
According to one embodiment of the invention, the adjusting unit comprises: the first adjusting subunit is used for reducing the duty ratio of the infrared emission tube if the average value is greater than a second preset value; and the second adjusting subunit is used for increasing the duty ratio of the infrared emission tube if the average value is smaller than a third preset value, wherein the second preset value is larger than the third preset value.
According to the infrared gesture recognition device provided by the embodiment of the invention, if the average value is greater than the second preset value, the intensity value of the received infrared reflection signal is larger, and the user is closer to the infrared gesture recognition device, the duty ratio of the infrared emission tube is reduced, so that the intensity of infrared rays emitted by the infrared emission tube is reduced; if the average value is smaller than the third preset value, the intensity value of the received infrared reflection signal is smaller, and the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased, so that the intensity of infrared rays emitted by the infrared emission tube is increased, and the reliability of the infrared gesture recognition device in recognizing gesture actions is improved.
According to an embodiment of the present invention, further comprising: the second judging unit is used for judging whether the intensity value curve has a rising curve section or not; a first determining unit, configured to determine the multiple signal intensity values according to the signal intensity values in the ascending curve segment if the ascending curve segment exists in the intensity value curve; a second determining unit, configured to determine the multiple signal intensity values according to the signal intensity values of the intensity value curve if the rising curve segment does not exist in the intensity value curve.
According to the infrared gesture recognition device provided by the embodiment of the invention, if the intensity value curve does not have the rising curve segment, all the signal intensity values in the intensity value curve are taken as a plurality of signal intensity values, and if the rising curve segment exists, the first N signal intensity values in the rising curve segment are taken as a plurality of signal intensity values, so that the obtained plurality of signal intensity values can accurately reflect the distance between the user and the infrared gesture recognition device.
According to an embodiment of the third aspect of the present invention, an apparatus is provided, which includes the infrared gesture recognition device according to any one of the above technical solutions, so that the apparatus has the same technical effects as the infrared gesture recognition device according to any one of the above technical solutions, and details are not repeated here.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 shows a schematic flow diagram of a control method of an infrared gesture recognition apparatus according to an embodiment of the present invention;
FIG. 2 shows a schematic diagram of an intensity value curve of an infrared reflected signal according to an embodiment of the invention;
FIG. 3 shows a schematic flow chart of a method of controlling an infrared gesture recognition apparatus according to another embodiment of the present invention;
FIG. 4 shows a schematic block diagram of an infrared gesture recognition apparatus according to an embodiment of the present invention;
fig. 5 shows a schematic block diagram of an apparatus according to an embodiment of the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Fig. 1 shows a schematic flow chart of a control method of an infrared gesture recognition apparatus according to an embodiment of the present invention.
As shown in fig. 1, a control method of an infrared gesture recognition apparatus according to an embodiment of the present invention includes:
step 102, calculating an average value of a plurality of signal intensity values in an intensity value curve of the infrared reflection signal in a period of time.
Further, step 102 further comprises: judging whether an ascending curve section exists in the intensity value curve; if there is a rising curve segment in the intensity value curve, determining a plurality of signal intensity values according to the signal intensity values in the rising curve segment, for example, taking the first N (for example, N ═ 30) signal intensity values in the rising curve segment as the plurality of signal intensity values; if there is no rising curve segment in the intensity value curve, a plurality of signal intensity values are determined according to the signal intensity values of the intensity value curve, for example, all the signal intensity values in the intensity value curve are taken as the plurality of signal intensity values. Therefore, the obtained signal intensity values can accurately reflect the distance between the user and the infrared gesture recognition device.
For a rising curve segment, a rising curve of the intensity value curve is referred to, and the difference between the maximum signal intensity value and the minimum signal intensity value in the rising curve of the segment exceeds a certain value. For example, if there is a rising curve, the maximum signal intensity value and the minimum signal intensity value in the rising curve are 150 and 100, respectively, and the difference between the maximum signal intensity value and the minimum signal intensity value does not exceed 150, it is determined that the rising curve is not a rising curve segment. For another example, if there is a rising curve, the maximum signal intensity value and the minimum signal intensity value in the rising curve are 350 and 100, respectively, and the difference between the maximum signal intensity value and the minimum signal intensity value exceeds 150, the rising curve is determined to be a rising curve segment.
As shown in fig. 2, the vertical axis Y represents the intensity value of the received infrared reflection signal, and the horizontal axis X represents the time when the intensity value of the infrared reflection signal is received. The curve in fig. 2 is the intensity value curve of the infrared reflection signal, and the curve segment between the point a and the point B is a rising curve segment.
Further, after step 102, the method further includes: judging whether the difference value of each signal intensity value in the plurality of signal intensity values and the average value is smaller than a first preset value or not; if the difference between K (for example, K ═ 20) signal intensity values in the plurality of signal intensity values and the average value is smaller than the first preset value, it indicates that the intensity value curve is stable, and further indicates that the distance between the user and the infrared gesture recognition device is stable, step 104 is executed, i.e., the duty ratio of the infrared emission tube is adjusted, where K is a positive integer greater than 1. If the difference value between the K signal intensity values and the average value in the plurality of signal intensity values is not smaller than the first preset value, the fluctuation of the intensity value curve is larger, and further the distance between the user and the infrared gesture recognition device is changed, the duty ratio of the infrared emission tube is not adjusted, so that the situation that the duty ratio of the infrared emission tube is increased when the user is close to the infrared gesture recognition device is avoided, the situation that the duty ratio of the infrared emission tube is reduced when the user is far away from the infrared gesture recognition device is avoided, and the reliability of gesture recognition is ensured.
Furthermore, the K signal intensity values are continuous in the intensity value curve, so that the reliability and the accuracy of gesture recognition can be further ensured.
And 104, adjusting the duty ratio of an infrared emission tube of the infrared gesture recognition device according to the average value.
Further, step 104 specifically includes: if the average value is larger than the second preset value, the received infrared reflection signal strength value is larger, and the user is closer to the infrared gesture recognition device, the duty ratio of the infrared emission tube is reduced, so that the infrared intensity emitted by the infrared emission tube is reduced; if the average value is smaller than the third preset value, the intensity value of the received infrared reflection signal is smaller, and the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased, so that the intensity of infrared rays emitted by the infrared emission tube is increased, and the reliability of the infrared gesture recognition device in recognizing gesture actions is improved.
In the technical scheme, the average value of the signal intensity values in the intensity value curve of the infrared reflection signal reflects the distance from a user to the infrared gesture recognition device, so that when the user is close to the infrared gesture recognition device, the duty ratio of the infrared emission tube is reduced to reduce the driving current of the infrared emission tube, the power of the infrared emission tube is reduced, the intensity of infrared rays emitted by the infrared emission tube is reduced, at the moment, when the user performs gesture actions again, the change amplitude of the intensity value of the received infrared reflection signal is obvious, and the gesture actions performed by the user can be accurately recognized. And when the power of the infrared transmitting tube is reduced, the power consumption of the infrared gesture recognition device is reduced. In addition, when the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased, the driving current of the infrared emission tube is increased, the power of the infrared emission tube is increased, the intensity of infrared rays emitted by the infrared emission tube is improved, and when the user performs gesture actions again, the gesture actions which cannot be recognized by the user due to the fact that the intensity value of the received infrared reflection signals is weak are avoided, so that when the user is far away from the infrared gesture recognition device, the gesture actions performed by the user can still be recognized.
The technical solution of the present invention is explained in detail by two examples below.
The first embodiment is as follows: collecting infrared reflection signals within a period of time, and obtaining an intensity value curve of the infrared reflection signals. If the curve segment of the intensity value curve rises, the first N signal intensity values in the curve segment of the rising curve are taken. And calculating the average value of the N signal intensity values, and if the average value of the N signal intensity values is more than 800, indicating that the user is relatively close to the infrared gesture recognition device, reducing the duty ratio of the infrared emission tube from one third to one fourth or one fifth, so that on one hand, the power of the infrared emission tube is reduced, the power consumption of the infrared gesture recognition device is reduced, on the other hand, the detection distance of the infrared gesture recognition device is reduced, and the infrared reflection signal intensity value is reduced from 800 to 100. However, the detection interval range of the infrared gesture recognition device is not changed, for example, the original detection interval is [0, 1024], and after the detection distance is reduced, the detection interval is still [0, 1024 ]. Therefore, the user can normally detect the gesture action when the user does the gesture action no matter the user is not right in front of the infrared gesture recognition device, and the recognition rate cannot be reduced. When the intensity value of the infrared reflection signal detected in a certain time period is small, the original duty ratio is restored again, and the detection distance is increased.
Example two: collecting infrared reflection signals within a period of time, and obtaining an intensity value curve of the infrared reflection signals. If there is no ascending curve segment in the intensity value curve, all signal intensity values in the ascending curve segment are taken. If the average value of all the signal intensity values is less than 50, which indicates that the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased to one third from the original one fifth, so that the detection distance of the infrared gesture recognition device is increased, and the infrared reflection signal intensity value is increased to 100 from the original 50. However, the detection interval range of the infrared gesture recognition device is not changed, for example, the original detection interval is [0, 1024], and after the detection distance is reduced, the detection interval is still [0, 1024 ]. When the average value of a plurality of signal intensity values of the intensity value curve of the infrared reflection signal collected again is larger, the duty ratio is restored again to the original duty ratio and the detection distance is reduced, which indicates that the user and the infrared gesture recognition device are reduced.
Fig. 3 shows a schematic flow chart of a control method of an infrared gesture recognition apparatus according to another embodiment of the present invention.
As shown in fig. 3, a control method of an infrared gesture recognition apparatus according to another embodiment of the present invention includes:
step 302, an intensity value curve of the infrared reflection signal within a period of time is collected.
And step 304, judging whether a rising curve exists, if so, entering step 306, and otherwise, entering step 308.
Step 306, the first N signal strength values in the ascending curve segment are taken as a plurality of signal strength values.
In step 308, all the signal intensity values in the intensity value curve are taken as a plurality of signal intensity values.
In step 310, an average value M of the plurality of signal strength values is calculated.
Step 312, determining whether there are consecutive K signal strength values in the plurality of signal strength values, and the difference between the M value and the K signal strength value is smaller than Z (i.e. the first preset value), if yes, entering step 314, otherwise, ending the process.
In step 314, it is determined whether M is greater than Y1 (i.e., the second preset value)?, if yes, the process proceeds to step 316, otherwise, the process proceeds to step 318.
And step 316, reducing the duty ratio of the infrared emission tube.
In step 318, it is determined whether M is smaller than Y2 (i.e., the third preset value)?, if yes, the process proceeds to step 320, otherwise, the process is ended.
And step 320, increasing the duty ratio of the infrared emission tube.
FIG. 4 shows a schematic block diagram of an infrared gesture recognition apparatus according to an embodiment of the present invention.
As shown in fig. 4, the infrared gesture recognition apparatus 400 according to the embodiment of the present invention includes: a calculation unit 402 and an adjustment unit 404.
A calculating unit 402, configured to calculate an average value of a plurality of signal intensity values in an intensity value curve of the infrared reflection signal over a period of time.
Further, the infrared gesture recognition apparatus 400 further includes: a second judging unit 408, a first determining unit 410 and a second determining unit 412, wherein the second judging unit 408 is configured to judge whether there is a rising curve segment in the intensity value curve; a first determining unit 410, configured to determine a plurality of signal strength values according to the signal strength values in the ascending curve segment if there is an ascending curve segment in the strength value curve, for example, taking the first N (e.g., N ═ 30) signal strength values in the ascending curve segment as the plurality of signal strength values, so as to ensure that the obtained plurality of signal strength values can relatively accurately reflect the distance from the user to the infrared gesture recognition apparatus 400; the second determining unit 412 is configured to determine a plurality of signal strength values according to the signal strength values of the intensity value curve if there is no ascending curve segment in the intensity value curve, for example, taking all the signal strength values in the intensity value curve as the plurality of signal strength values.
For a rising curve segment, a rising curve of the intensity value curve is referred to, and the difference between the maximum signal intensity value and the minimum signal intensity value in the rising curve of the segment exceeds a certain value. For example, if there is a rising curve, the maximum signal intensity value and the minimum signal intensity value in the rising curve are 150 and 100, respectively, and the difference between the maximum signal intensity value and the minimum signal intensity value does not exceed 150, it is determined that the rising curve is not a rising curve segment. For another example, if there is a rising curve, the maximum signal intensity value and the minimum signal intensity value in the rising curve are 350 and 100, respectively, and the difference between the maximum signal intensity value and the minimum signal intensity value exceeds 150, the rising curve is determined to be a rising curve segment.
And an adjusting unit 404, configured to adjust a duty ratio of an infrared emission tube of the infrared gesture recognition apparatus 400 according to the average value.
Further, the infrared gesture recognition apparatus 400 further includes: a first determining unit 406, configured to determine whether a difference between each of the plurality of signal strength values and the average value is smaller than a first preset value; and if the first determining unit 406 determines that the difference between K signal intensity values of the plurality of signal intensity values and the average value is smaller than the first preset value, it indicates that the intensity value curve is relatively stable, and further indicates that the distance between the user and the infrared gesture recognition apparatus 400 is relatively stable, the adjusting unit 404 adjusts the duty ratio of the infrared transmitting tube according to the average value, where K is a positive integer greater than 1. If the difference value between the K signal intensity values and the average value is not smaller than the first preset value in the plurality of signal intensity values, it is indicated that the fluctuation of the intensity value curve is large, and further, it is indicated that the distance between the user and the infrared gesture recognition device 400 is changed, the duty ratio of the infrared transmitting tube is not adjusted, so that the duty ratio of the infrared transmitting tube is prevented from being increased when the user approaches the infrared gesture recognition device 400, and the duty ratio of the infrared transmitting tube is prevented from being reduced when the user leaves the infrared gesture recognition device 400, and therefore the reliability of gesture recognition is ensured.
Further, the K signal intensity values are continuous in the intensity value curve.
Further, the adjusting unit 404 includes: the first adjusting subunit 4042 is configured to, if the average value is greater than the second preset value, indicate that the intensity value of the received infrared reflection signal is relatively large, and the user is relatively close to the infrared gesture recognition apparatus 400, reduce the duty ratio of the infrared transmitting tube, so as to reduce the intensity of the infrared rays emitted by the infrared transmitting tube; the second adjusting subunit 4044 is configured to, if the average value is smaller than the third preset value, indicate that the intensity value of the received infrared reflection signal is smaller, and the user is farther from the infrared gesture recognition apparatus 400, increase the duty ratio of the infrared transmitting tube to increase the intensity of the infrared rays emitted by the infrared transmitting tube, so as to improve reliability of the infrared gesture recognition apparatus 400 in recognizing the gesture motion.
The first embodiment is as follows: if the average value of the signal intensity values is larger than 800, which indicates that the user is closer to the infrared gesture recognition device 400, the duty ratio of the infrared transmitting tube is reduced from the original one third to one fourth or one fifth, so that on one hand, the power of the infrared transmitting tube is reduced, the power consumption of the infrared gesture recognition device 400 is reduced, on the other hand, the detection distance of the infrared gesture recognition device 400 is reduced, and the infrared reflection signal intensity value is reduced from the original 800 to 100. However, the detection interval range of the infrared gesture recognition apparatus 400 is not changed, for example, the original detection interval is [0, 1024], and after the detection distance is reduced, the detection interval is still [0, 1024 ]. In this way, the user can normally detect the gesture motion even if the user is not in front of the infrared gesture recognition apparatus 400, and the recognition rate is not reduced. When the intensity value of the infrared reflection signal detected in a certain time period is small, the original duty ratio is restored again, and the detection distance is increased.
Example two: if the average value of the signal intensity values is less than 50, which indicates that the user is far away from the infrared gesture recognition device 400, the duty ratio of the infrared emission tube is increased from one fifth to one third, so that the detection distance of the infrared gesture recognition device 400 is increased, and the infrared reflection signal intensity value is increased from 50 to 100. However, the detection interval range of the infrared gesture recognition apparatus 400 is not changed, for example, the original detection interval is [0, 1024], and after the detection distance is reduced, the detection interval is still [0, 1024 ]. When the average value of the plurality of signal intensity values of the intensity value curve of the infrared reflection signal collected again is large, it indicates that the user and the infrared gesture recognition device 400 become small, and the duty ratio is restored to the original duty ratio again, so that the detection distance is reduced.
In the above technical solution, since the average value of the plurality of signal intensity values in the intensity value curve of the infrared reflection signal reflects the distance from the user to the infrared gesture recognition apparatus 400, when the user is closer to the infrared gesture recognition apparatus 400, the duty ratio of the infrared transmitting tube is reduced to reduce the driving current of the infrared transmitting tube, so that the power of the infrared transmitting tube is reduced, thereby reducing the intensity of the infrared rays emitted by the infrared transmitting tube, and when the user performs a gesture action again, the variation range of the intensity value of the received infrared reflection signal is more obvious, thereby accurately recognizing the gesture action performed by the user. And reduces the power consumption of the infrared gesture recognition apparatus 400 when the power of the infrared transmitting tube is reduced. In addition, when the user is far away from the infrared gesture recognition device 400, the duty ratio of the infrared emission tube is increased to increase the driving current of the infrared emission tube, so that the power of the infrared emission tube is increased, the intensity of infrared rays emitted by the infrared emission tube is improved, and when the user performs gesture actions again, the gesture actions which cannot be recognized by the user due to the fact that the intensity value of the received infrared reflection signals is weak are avoided, so that when the user is far away from the infrared gesture recognition device 400, the gesture actions performed by the user can still be recognized.
Fig. 5 shows a schematic block diagram of an apparatus according to an embodiment of the invention.
As shown in fig. 5, the apparatus 500 according to the embodiment of the present invention includes the infrared gesture recognition device 400 in any one of the above technical solutions, and therefore, the apparatus 500 has the same technical effects as the infrared gesture recognition device 400 in any one of the above technical solutions, and is not described herein again.
Among other things, the device 500 includes, but is not limited to: domestic appliance, intelligent household equipment, computer, for example domestic appliance includes air conditioner, refrigerator, air purifier, and intelligent household equipment includes intelligent wardrobe, intelligent desk lamp.
The technical scheme of the invention is described in detail in the above with reference to the attached drawings, and by the technical scheme of the invention, the duty ratio of the infrared transmitting tube is adjusted according to the distance between the user and the infrared gesture recognition device, so that not only can the power consumption of the infrared gesture recognition device be reduced, but also the accuracy of the infrared gesture recognition device in recognizing gesture actions can be improved, and the user experience is improved.
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.
Claims (7)
1. A control method of an infrared gesture recognition device is characterized by comprising the following steps:
calculating an average of a plurality of signal intensity values in an intensity value curve of the infrared reflection signal over a period of time;
adjusting the duty ratio of an infrared emission tube of the infrared gesture recognition device according to the average value;
the step of adjusting the duty ratio of an infrared emission tube of the infrared gesture recognition device according to the average value specifically includes:
if the average value is larger than a second preset value, the user is close to the infrared gesture recognition device, and the duty ratio of the infrared emission tube is reduced;
if the average value is smaller than a third preset value, the user is far away from the infrared gesture recognition device, the duty ratio of the infrared emission tube is increased,
wherein the second preset value is greater than the third preset value;
judging whether the difference value of each signal intensity value in the plurality of signal intensity values and the average value is smaller than a first preset value or not;
if the difference value between K signal intensity values in the plurality of signal intensity values and the average value is smaller than the first preset value, adjusting the duty ratio of the infrared emission tube according to the average value, otherwise, not adjusting the duty ratio of the infrared emission tube, wherein K is a positive integer larger than 1.
2. The method of controlling an infrared gesture recognition device of claim 1, wherein the K signal intensity values are continuous in the intensity value curve.
3. The method of controlling an infrared gesture recognition apparatus according to claim 1 or 2, further comprising:
judging whether the intensity value curve has a rising curve section or not;
if the rising curve segment exists in the intensity value curve, determining the plurality of signal intensity values according to the signal intensity values in the rising curve segment;
and if the rising curve segment does not exist in the intensity value curve, determining the plurality of signal intensity values according to the signal intensity values of the intensity value curve.
4. An infrared gesture recognition device, comprising:
a calculation unit for calculating an average value of a plurality of signal intensity values in an intensity value curve of the infrared reflection signal over a period of time;
the adjusting unit is used for adjusting the duty ratio of an infrared transmitting tube of the infrared gesture recognition device according to the average value;
the adjusting unit includes:
the first adjusting subunit is used for reducing the duty ratio of the infrared transmitting tube when the user is close to the infrared gesture recognition device if the average value is larger than a second preset value;
a second adjusting subunit, configured to increase a duty ratio of the infrared transmitting tube if the average value is smaller than a third preset value and the user is far away from the infrared gesture recognition device,
wherein the second preset value is greater than the third preset value;
the first judging unit is used for judging whether the difference value of each signal intensity value in the plurality of signal intensity values and the average value is smaller than a first preset value or not;
if the first judging unit judges that the difference value between K signal intensity values in the plurality of signal intensity values and the average value is smaller than the first preset value, the adjusting unit adjusts the duty ratio of the infrared emission tube according to the average value, otherwise, the duty ratio of the infrared emission tube is not adjusted, wherein K is a positive integer larger than 1.
5. The infrared gesture recognition device of claim 4, wherein the K signal intensity values are continuous in the intensity value curve.
6. The infrared gesture recognition device of claim 4 or 5, further comprising:
the second judging unit is used for judging whether the intensity value curve has a rising curve section or not;
a first determining unit, configured to determine the multiple signal intensity values according to the signal intensity values in the ascending curve segment if the ascending curve segment exists in the intensity value curve;
a second determining unit, configured to determine the multiple signal intensity values according to the signal intensity values of the intensity value curve if the rising curve segment does not exist in the intensity value curve.
7. An apparatus, comprising: the infrared gesture recognition apparatus of any one of claims 4 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383264.9A CN106020486B (en) | 2016-05-31 | 2016-05-31 | Control method, device and equipment of infrared gesture recognition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383264.9A CN106020486B (en) | 2016-05-31 | 2016-05-31 | Control method, device and equipment of infrared gesture recognition device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106020486A CN106020486A (en) | 2016-10-12 |
| CN106020486B true CN106020486B (en) | 2019-12-24 |
Family
ID=57093158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610383264.9A Active CN106020486B (en) | 2016-05-31 | 2016-05-31 | Control method, device and equipment of infrared gesture recognition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106020486B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181990B (en) * | 2018-01-19 | 2023-05-12 | 昆山国显光电有限公司 | Control method based on infrared gesture recognition and intelligent watch |
| CN112568692A (en) * | 2019-09-29 | 2021-03-30 | 浙江苏泊尔家电制造有限公司 | Control method of cooking appliance, cooking appliance and computer storage medium |
| CN111239843A (en) * | 2020-03-20 | 2020-06-05 | 杭州敏和光电子技术有限公司 | Infrared pair tube detection method |
| CN112860070B (en) * | 2021-03-03 | 2024-10-18 | 北京小米移动软件有限公司 | Equipment interaction method, equipment interaction device, storage medium and terminal |
| CN114326445B (en) * | 2021-12-21 | 2024-03-01 | 厦门市欧立通电子科技开发有限公司 | Control method of intelligent closestool cover plate based on infrared and pressure sensors |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226447A (en) * | 2008-01-29 | 2008-07-23 | 广东威创视讯科技股份有限公司 | Touch screen device and debugging method thereof |
| CN102323865A (en) * | 2011-06-16 | 2012-01-18 | 广州视睿电子科技有限公司 | Method and device for adjusting signal intensity of infrared pair tube touch screen lamp tube |
| CN104090634A (en) * | 2014-07-21 | 2014-10-08 | 深圳市快易典教育科技有限公司 | Shortsightedness preventing device and method for tablet personal computer |
| CN104811546A (en) * | 2015-04-02 | 2015-07-29 | 深圳市金立通信设备有限公司 | Terminal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096580A (en) * | 2015-08-18 | 2015-11-25 | 金德奎 | Gesture controlling intelligent switch capable of controlling domestic appliance |
-
2016
- 2016-05-31 CN CN201610383264.9A patent/CN106020486B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226447A (en) * | 2008-01-29 | 2008-07-23 | 广东威创视讯科技股份有限公司 | Touch screen device and debugging method thereof |
| CN102323865A (en) * | 2011-06-16 | 2012-01-18 | 广州视睿电子科技有限公司 | Method and device for adjusting signal intensity of infrared pair tube touch screen lamp tube |
| CN104090634A (en) * | 2014-07-21 | 2014-10-08 | 深圳市快易典教育科技有限公司 | Shortsightedness preventing device and method for tablet personal computer |
| CN104811546A (en) * | 2015-04-02 | 2015-07-29 | 深圳市金立通信设备有限公司 | Terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106020486A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106020486B (en) | Control method, device and equipment of infrared gesture recognition device | |
| US8242718B2 (en) | System for controlling light in dependence of time-of-flight signal | |
| US8212500B2 (en) | System for controlling light in dependence of time-of-flight signal | |
| EP2218309B1 (en) | Robust id gesture light control algorithm | |
| EP2218180B1 (en) | Sound pressure level calibration for ultrasound based gesture light controlled system | |
| US8212499B2 (en) | System for controlling light in dependence of time-of-flight signal | |
| CN106020485B (en) | Gesture identification method, gesture identifying device and gesture identification equipment | |
| CN107037736B (en) | Linkage control method of intelligent home system and intelligent gateway | |
| CN104575446A (en) | Brightness adjustment method and device of display screen and air conditioner | |
| JP6590553B2 (en) | Photoelectric sensor | |
| CN106019958B (en) | Gesture recognition control method, gesture recognition control device and household appliance | |
| CN107907884B (en) | Object distance detection method and device, air conditioner and storage medium | |
| CN114198977B (en) | Method for detecting human body approach of refrigerator and refrigerator adopting method | |
| US9880280B2 (en) | Object detection method and object detector using the same | |
| CN106940528B (en) | Gesture control method and system based on intelligent device | |
| CN113119128A (en) | Robot, operation control method thereof, electronic device, and storage medium | |
| CN107504641B (en) | Air conditioner control method, air conditioner indoor unit and air conditioner | |
| US20160088714A1 (en) | Controlling a function of a space | |
| CN110207227B (en) | Gesture recognition control circuit for range hood and method thereof | |
| US20110156923A1 (en) | Information feedback or message to end-user for led light-control systems | |
| CN113770997A (en) | Robot, obstacle crossing control method for robot, storage medium and equipment | |
| CN105549731A (en) | Regulation system and method for adaptively regulating gesture recognition distance | |
| CN108732960B (en) | Non-contact control device and control method thereof | |
| JP2018136223A (en) | Object detection sensor and electrical equipment unit | |
| CN112540612A (en) | Virtual wall signal adjusting method, virtual wall equipment, robot and navigation system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |