CN109635735A - A kind of gesture identifying device - Google Patents
A kind of gesture identifying device Download PDFInfo
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- CN109635735A CN109635735A CN201811518813.4A CN201811518813A CN109635735A CN 109635735 A CN109635735 A CN 109635735A CN 201811518813 A CN201811518813 A CN 201811518813A CN 109635735 A CN109635735 A CN 109635735A
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- infrared
- gesture
- user gesture
- infrared receiver
- emitter
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/94—Hardware or software architectures specially adapted for image or video understanding
Abstract
The invention discloses a kind of gesture identifying devices, comprising: infrared array module for detecting user gesture using infrared technique, and generates gesture information after detecting user gesture；The processing module being connect with infrared array module, for determining the concrete operations of user gesture according to gesture information, to identify user gesture.As it can be seen that the application replaces camera using the infrared array module of low cost, for detecting user gesture, and gesture information is generated after detecting user gesture.Since the gesture information calculation amount that infrared array module generates is less, so the application need not configure high performance processing module, the weaker processing module of operational capability can also determine the concrete operations of user gesture according to gesture information, to reduce the cost of implementation of gestures detection.And the electronic product for only needing to identify some simple gestures, if the gesture identifying device of configuration the application, effectively increases the cost performance of these electronic products, enhances its market competitiveness.
Description
Technical field
The present invention relates to infrared technique fields, more particularly to a kind of gesture identifying device.
Background technique
Currently, there is many gesture identification products in the market, these gesture identification products are designed with greatly high performance camera
And processor, specific identification process are as follows: user gesture is shot by camera first, camera can be by captured user hand
Gesture is transmitted to processor, is then based on image recognition technology by processor and identifies user gesture.But high performance camera and
Processor leads to the higher cost of gesture identification product, and some electronic products only need to identify some simple gestures (as up and down
The four kinds of gestures brandished in left and right) be just able to achieve product function, if at this time for these electronic products configure high performance camera and
Processor, the then cost performance that will lead to these electronic products reduce, market competitiveness decline.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that those skilled in the art needs to solve at present
The problem of.
Summary of the invention
The object of the present invention is to provide a kind of gesture identifying device, the cost of implementation of gestures detection is reduced, and for only
The electronic product for needing to identify some simple gestures effectively increases the cost performance of these electronic products, and it is competing to enhance its market
Strive power.
In order to solve the above technical problems, the present invention provides a kind of gesture identifying devices, comprising:
Infrared array module, it is raw for detecting user gesture using infrared technique, and after detecting the user gesture
At gesture information；
The processing module being connect with the infrared array module, for determining the user gesture according to the gesture information
Concrete operations, to identify the user gesture.
Preferably, the infrared array module includes N number of infrared tube circuit；Each infrared tube circuit includes infrared
Line transmitting tube, infrared receiver tube, first resistor and second resistance；N is the integer greater than 1；Wherein:
The anode of the infrared emission tube is connect with the collector of the infrared receiver tube, and direct current is accessed in common end
Power supply, the cathode of the infrared emission tube are connect with the first end of the first resistor, the transmitting of the infrared receiver tube
Pole is connect with the first end of the second resistance, and common end is connect with the processing module, the second end of the first resistor
It is connect with the second end of the second resistance, common end grounding；
The infrared tube circuit for detecting whether the direction for thering is object to appear in the infrared emission tube direct projection, if
It is, then the infrared receiver tube conducting；If it is not, the then infrared receiver tube cut-off；
Then the processing module is specifically used for determining the use according to the voltage change of the emitter of each infrared receiver tube
The concrete operations of family gesture, to identify the user gesture.
Preferably, the processing module includes processor；
And when the quantity for the I/O port for having ADC function on the processor is not less than N, N number of infrared receiver tube
Emitter and the processor on have ADC function I/O port connect one by one, the processor according to each infrared ray for connecing
The voltage change of the emitter of closed tube determines the concrete operations of the user gesture, to identify the user gesture；
When the quantity for the I/O port for having ADC function on the processor is M and is less than N, the processing module further includes L
A comparison circuit；M, L is positive integer, and N-M≤L≤N；Wherein:
The emitter of the L infrared receiver tubes is connect one by one with the input terminal of the L comparison circuits, and L described
The output end of comparison circuit is connect one by one with the common I/O port of the processor, the hair of remaining N-L infrared receiver tubes
The I/O port for having ADC function on emitter-base bandgap grading and the processor is connect one by one；
The voltage that the comparison circuit is used to work as the emitter of connected infrared receiver tube is greater than preset reference voltage
When export low level；The output when the voltage of the emitter of the infrared receiver tube connected is not more than the preset reference voltage
High level；Then the processor is used to determine the user gesture according to the voltage change of the emitter of each infrared receiver tube
Concrete operations, to identify the user gesture.
Preferably, L=N-M.
Preferably, when the quantity for the I/O port for having ADC function on the processor is M and is less than N, the comparison circuit
Including comparator, pull-up resistor and reference circuit for the preset reference voltage to be arranged；Wherein:
Input terminal of the input negative terminal of the comparator as the comparison circuit, the input anode of the comparator and institute
The output end connection of reference circuit is stated, the power end of the comparator is connect with the first end of the pull-up resistor, common end
DC power supply is accessed, the output end of the comparator is connect with the second end of the pull-up resistor, and common end is as the ratio
Compared with the output end of circuit, the ground terminal of the comparator is grounded.
Preferably, the reference circuit includes slide rheostat and 3rd resistor；Wherein:
The first end of the slide rheostat accesses DC power supply, the second end of the slide rheostat and third electricity
The first end of resistance connects, the second end ground connection of the 3rd resistor, and the adjustable side of the slide rheostat is as the benchmark electricity
The output end on road.
Preferably, the comparator is specially LM393 comparator.
Preferably, the processor is specifically used for indicate the institute of the voltage change situation of the emitter of infrared receiver tube
There is digital quantity to be converted into a matrix data, and the matrix data is handled by matrix algorithm, with the determination electricity
Press situation of change；Determine the concrete operations of the user gesture, according to the voltage change situation to identify the user gesture.
The present invention provides a kind of gesture identifying devices, comprising: infrared array module, for being used using infrared technique detection
Family gesture, and gesture information is generated after detecting user gesture；The processing module connecting with infrared array module is used for basis
Gesture information determines the concrete operations of user gesture, to identify user gesture.
As it can be seen that the application replaces camera using the infrared array module of low cost, for detecting user gesture, and examining
Gesture information is generated after measuring user gesture.The gesture generated compared to the pictorial information that camera generates, infrared array module
Information calculation amount is less, so the application need not configure high performance processing module, the weaker processing module of operational capability can also
The concrete operations that user gesture is determined according to gesture information, realize the identification of user gesture, to reduce the reality of gestures detection
Ready-made.Moreover, the electronic product for only needing to identify some simple gestures, if the gesture identifying device of configuration the application,
The cost performance for then effectively increasing these electronic products enhances its market competitiveness.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of gesture identifying device provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of infrared tube circuit provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the first gesture identifying device provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of second of gesture identifying device provided in an embodiment of the present invention；
Fig. 5 is a kind of combining structure schematic diagram of infrared tube circuit and comparison circuit provided in an embodiment of the present invention.
Specific embodiment
Core of the invention is to provide a kind of gesture identifying device, reduces the cost of implementation of gestures detection, and for only
The electronic product for needing to identify some simple gestures effectively increases the cost performance of these electronic products, and it is competing to enhance its market
Strive power.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, Fig. 1 is a kind of structural schematic diagram of gesture identifying device provided in an embodiment of the present invention.
The gesture identifying device includes:
Infrared array module 1 for detecting user gesture using infrared technique, and generates hand after detecting user gesture
Gesture information；
The processing module 2 being connect with infrared array module 1, for determining the specific behaviour of user gesture according to gesture information
Make, to identify user gesture.
Specifically, the gesture identifying device of the application includes infrared array module 1 and processing module 2, its working principle is that:
Infrared array is introduced first: infrared array refers to the array that multiple infrared tubes are formed.Infrared tube is
Refer to general name when infrared emission tube and infrared receiver tube are combined together use.Infrared emission tube, also referred to as infrared ray hair
Diode is penetrated, diode-like is belonged to, electric energy can be directly changed near infrared light (black light) and by near infrared light spoke by it
The luminescent device being shot out.Infrared receiver tube, which refers to, is specifically used to receive and incude the near infrared light that infrared emission tube issues
Semiconductor devices, infrared ray signal can be converted into electric signal by it.
For any infrared tube, when object appears in the direction of infrared emission tube direct projection, body surface can reflect
The infrared light that infrared emission tube issues, infrared receiver tube can be connected because receiving infrared light at this time, so that the application can
The direction that object appears in infrared emission tube direct projection is judged whether there is with the conducting situation according to infrared receiver tube.Based on list
A infrared tube can detect object, can realize that multiple infrared tubes are combined into infrared array detection user gesture.
Based on the above principles, the application is equipped with infrared array module 1, realizes and utilizes infrared technique real-time detection user hand
Gesture, and gesture information can be generated after detecting user gesture.Specifically, when user's finger position changes, infrared array
The conducting situation of infrared receiver tube accordingly changes in module 1.As it can be seen that in infrared array module 1 infrared receiver tube conducting
Situation can characterize the concrete operations of user gesture.So infrared array module 1 generates the conducting feelings for indicating each infrared receiver tube
The gesture information of condition, and gesture information is sent to processing module 2 in real time.Then it is determined by processing module 2 according to gesture information
The concrete operations of user gesture are played the role of identifying user gesture.
The present invention provides a kind of gesture identifying devices, comprising: infrared array module, for being used using infrared technique detection
Family gesture, and gesture information is generated after detecting user gesture；The processing module connecting with infrared array module is used for basis
Gesture information determines the concrete operations of user gesture, to identify user gesture.
As it can be seen that the application replaces camera using the infrared array module of low cost, for detecting user gesture, and examining
Gesture information is generated after measuring user gesture.The gesture generated compared to the pictorial information that camera generates, infrared array module
Information calculation amount is less, so the application need not configure high performance processing module, the weaker processing module of operational capability can also
The concrete operations that user gesture is determined according to gesture information, realize the identification of user gesture, to reduce the reality of gestures detection
Ready-made.Moreover, the electronic product for only needing to identify some simple gestures, if the gesture identifying device of configuration the application,
The cost performance for then effectively increasing these electronic products enhances its market competitiveness.
On the basis of the above embodiments:
Referring to figure 2., Fig. 2 is a kind of structural schematic diagram of infrared tube circuit provided in an embodiment of the present invention.
As a kind of optionally embodiment, infrared array module 1 includes N number of infrared tube circuit；Each infrared tube electricity
Road includes infrared emission tube D, infrared receiver tube Q, first resistor R1 and second resistance R2；N is the integer greater than 1；Its
In:
The anode of infrared emission tube D is connect with the collector of infrared receiver tube Q, and DC power supply is accessed in common end,
The cathode of infrared emission tube D is connect with the first end of first resistor R1, the emitter and second resistance R2 of infrared receiver tube Q
First end connection, common end connect with processing module 2, the second end of first resistor R1 and the second end company of second resistance R2
It connects, common end grounding；
Infrared tube circuit is for detecting whether the direction for having object to appear in infrared emission tube D direct projection, if so, red
Outside line reception pipe Q conducting；If it is not, then infrared receiver tube Q ends；
Then processing module 2 is specifically used for determining user gesture according to the voltage change of the emitter of each infrared receiver tube Q
Concrete operations, to identify user gesture.
Specifically, infrared array module 1 includes multiple infrared tube circuits.Each infrared tube circuit includes infrared ray
Transmitting tube D, infrared receiver tube Q, first resistor R1 and second resistance R2, its working principle is that:
Infrared emission tube D can convert electric energy to always infrared light after accessing DC power supply (output voltage VCC)
And infrared light is radiate (first resistor R1 plays the role of dividing current limliting).If user's finger does not appear in infrared ray transmitting
The direction of pipe D direct projection, then infrared receiver tube Q will not receive infrared light, be in off state, at this time infrared receiver tube Q
Emitter voltage close to 0.If user's finger appears in the direction of infrared emission tube D direct projection, infrared receiver tube Q meeting
(second resistance R2 plays the role of dividing current limliting) is connected because receiving infrared light, due to two after infrared receiver tube Q conducting
The voltage at end is smaller (output voltage compared to DC power supply can be ignored), so the emitter of infrared receiver tube Q at this time
Voltage close to DC power supply output voltage.
As it can be seen that the voltage of the emitter of infrared receiver tube Q can indicate the conducting situation of itself, so the application's is infrared
Connect the emitter of infrared receiver tube Q with processing module 2 (also i.e. will be red for each infrared tube circuit in array module 1
The information of voltage of the emitter of outside line reception pipe Q is as above-mentioned gesture information).Then by processing module 2 according to each infrared ray
The voltage change of the emitter of reception pipe Q determines the concrete operations of user gesture, to identify user gesture.
Referring to figure 3. and Fig. 4, Fig. 3 be the first gesture identifying device provided in an embodiment of the present invention structural schematic diagram,
Fig. 4 is the structural schematic diagram of second of gesture identifying device provided in an embodiment of the present invention.
As a kind of optionally embodiment, processing module 2 includes processor；
And when the quantity for the I/O port for having ADC function on processor is not less than N, the emitter of N number of infrared receiver tube
It is connect one by one with the I/O port for having ADC function on processor, processor is used for the electricity of the emitter according to each infrared receiver tube
Buckling determines the concrete operations of user gesture, to identify user gesture；
When the quantity for the I/O port for having ADC function on processor is M and is less than N, processing module 2 further includes L comparison
Circuit；M, L is positive integer, and N-M≤L≤N；Wherein:
The emitter of L infrared receiver tube is connect one by one with the input terminal of L comparison circuit, L comparison circuit it is defeated
The common I/O port of outlet and processor connects one by one, has ADC on the emitter and processor of remaining N-L infrared receiver tube
The I/O port of function connects one by one；
Comparison circuit is used for defeated when the voltage of the emitter of the infrared receiver tube connected is greater than preset reference voltage
Low level out；High level is exported when the voltage of the emitter of the infrared receiver tube connected is not more than preset reference voltage；
Then processor is used to determine the concrete operations of user gesture according to the voltage change of the emitter of each infrared receiver tube, with identification
User gesture.
Specifically, the processing module 2 of the application includes processor.Due to the information of voltage of the emitter of infrared receiver tube
For voltage analog, so it can only (Analog-to-Digital Converter, analog/digital turn with having ADC on processor
Changing) IO (Input/Output, input/output) mouth of function is directly connected to, and the I/O port for having ADC function is used for voltage analog
Amount is converted to voltage digital quantity, for processor processing.
Based on this, the application needs the number of the quantity for having the I/O port of ADC function on comparator processor and infrared tube circuit
The size of amount.If the quantity for having the I/O port of ADC function on processor is not less than the quantity of infrared tube circuit, illustrate to handle mould
Block 2 just can complete the task (as shown in Figure 3) of identification user gesture only with processor, then by the transmitting of each infrared receiver tube
The I/O port for having ADC function on pole and processor is connect one by one, and processor can be according to the emitter of each infrared receiver tube
Voltage change determines the concrete operations of user gesture, to identify user gesture.
If the quantity for having the I/O port of ADC function on processor is less than the quantity of infrared tube circuit, illustrate processing module 2
It is unable to complete the task of identification user gesture only with processor, then needs to add that voltage analog is converted to voltage digital quantity
Circuit, the application specifically utilize comparison circuit to realize this function (as shown in Figure 4).In detail, a comparison circuit handles one
The voltage of the emitter of infrared receiver tube.By taking any infrared receiver tube as an example, illustrate the working principle of comparison circuit:
When the known direction for not appearing in the infrared emission tube direct projection when user's finger, the transmitting of the infrared receiver tube
The voltage of pole is close to 0；When user's finger appears in the direction of the infrared emission tube direct projection, the transmitting of the infrared receiver tube
Output voltage of the voltage of pole close to DC power supply.So a reference voltage is arranged in the application in advance, comparison circuit is used for will
The voltage of the emitter of the infrared receiver tube is made comparisons with set reference voltage, when user's finger appears in infrared ray transmitting
When the direction of pipe direct projection, the voltage of the emitter of the infrared receiver tube is greater than set reference voltage, and comparison circuit exports low electricity
It is flat；When user's finger does not appear in the direction of the infrared emission tube direct projection, the voltage of the emitter of the infrared receiver tube
Less than set reference voltage, comparison circuit exports high level, so that voltage analog to be converted to the voltage digital of low and high level
Infrared tube circuit is detected and is mapped whether object with the low and high level of comparison circuit output by amount.Meanwhile it is more electric
Road can export the voltage digital quantity of low and high level to the common I/O port of processor, and processor can connect according to each infrared ray is indicated
Digital quantity (low and high level of comparison circuit output and the IO for having ADC function of the voltage change situation of the emitter of closed tube
The voltage digital quantity of mouth conversion) determine the concrete operations of user gesture, to identify user gesture.
As a kind of optionally embodiment, L=N-M.
Further, when the quantity for the I/O port for having ADC function on processor is less than the quantity of infrared tube circuit, this
All I/O ports for having ADC function on processor can first be connect by application one by one with the emitter of each infrared receiver tube, then
The emitter of remaining infrared receiver tube is connect one by one with comparison circuit.
Referring to figure 5., Fig. 5 is a kind of composite structure of infrared tube circuit and comparison circuit provided in an embodiment of the present invention
Schematic diagram.
As a kind of optionally embodiment, when the quantity for the I/O port for having ADC function on processor is M and is less than N, than
Include comparator C, pull-up resistor R compared with circuit and the reference circuit for preset reference voltage to be arranged；Wherein:
Input terminal of the input negative terminal of comparator C as comparison circuit, comparator C input anode and reference circuit it is defeated
Outlet connection, the power end of comparator C are connect with the first end of pull-up resistor R, and DC power supply, comparator C are accessed in common end
Output end connect with the second end of pull-up resistor R, output end of the common end as comparison circuit, the ground terminal of comparator C
Ground connection.
Specifically, the comparison circuit of the application includes comparator C, pull-up resistor R and reference circuit, its working principle is that:
Reference circuit exports set reference voltage to the input anode of comparator C for said reference voltage to be arranged,
What the input negative terminal of comparator C inputted is the voltage of the emitter of connected infrared receiver tube Q, to realize infrared ray
The voltage analog that the emitter of reception pipe Q generates is converted to the voltage digital quantity of low and high level.
As one kind, optionally embodiment, reference circuit include slide rheostat Rf and 3rd resistor R3；Wherein:
The first end of slide rheostat Rf accesses DC power supply, and the of the second end of slide rheostat Rf and 3rd resistor R3
One end connection, the second end ground connection of 3rd resistor R3, output end of the adjustable side of slide rheostat Rf as reference circuit.
Specifically, the reference circuit setting reference voltage of the application is divided using slide rheostat Rf and 3rd resistor R3
Mode, by slide rheostat Rf adjust to a suitable resistance value, thus whether realizing that infrared tube circuit detects object
It is corresponding with comparison circuit output low and high level.
As one kind, optionally embodiment, comparator C are specially LM393 comparator.
Further, the comparator C of the application can select but be not limited only to LM393 comparator, and the application is not done herein
It is special to limit.
As a kind of optionally embodiment, processor is specifically used for indicate that the voltage of the emitter of infrared receiver tube becomes
All digital quantities for changing situation are converted into a matrix data, and are handled by matrix algorithm matrix data, with determination
Voltage change situation；Determine the concrete operations of user gesture, according to voltage change situation to identify user gesture.
Specifically, the recognition principle of the processor of the application specifically: firstly, processor will indicate infrared receiver tube
All digital quantities of the voltage change situation of emitter are converted into a matrix data, it is seen then that the matrix data reflects all
The voltage change situation of the emitter of infrared receiver tube, thus processor can by matrix algorithm to matrix data at
Reason, to determine the concrete operations of user gesture, to identify user gesture.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of gesture identifying device characterized by comprising
Infrared array module for detecting user gesture using infrared technique, and generates hand after detecting the user gesture
Gesture information；
The processing module being connect with the infrared array module, for determining the tool of the user gesture according to the gesture information
Gymnastics is made, to identify the user gesture.
2. gesture identifying device as described in claim 1, which is characterized in that the infrared array module includes N number of infrared right
Pipe circuit；Each infrared tube circuit includes infrared emission tube, infrared receiver tube, first resistor and second resistance；N is
Integer greater than 1；Wherein:
The anode of the infrared emission tube is connect with the collector of the infrared receiver tube, and direct current is accessed in common end
Source, the cathode of the infrared emission tube are connect with the first end of the first resistor, the emitter of the infrared receiver tube
Connect with the first end of the second resistance, common end is connect with the processing module, the second end of the first resistor with
The second end of the second resistance connects, common end grounding；
The infrared tube circuit for detecting whether the direction for thering is object to appear in the infrared emission tube direct projection, if so,
The then infrared receiver tube conducting；If it is not, the then infrared receiver tube cut-off；
Then the processing module is specifically used for determining the user hand according to the voltage change of the emitter of each infrared receiver tube
The concrete operations of gesture, to identify the user gesture.
3. gesture identifying device as claimed in claim 2, which is characterized in that the processing module includes processor；
And when the quantity for the I/O port for having ADC function on the processor is not less than N, the hair of N number of infrared receiver tube
The I/O port for having ADC function on emitter-base bandgap grading and the processor is connect one by one, and the processor is used for according to each infrared receiver tube
The voltage change of emitter determine the concrete operations of the user gesture, to identify the user gesture；
When the quantity for the I/O port for having ADC function on the processor is M and is less than N, the processing module further includes L ratio
Compared with circuit；M, L is positive integer, and N-M≤L≤N；Wherein:
The emitter of the L infrared receiver tubes is connect one by one with the input terminal of the L comparison circuits, the L comparisons
The output end of circuit is connect one by one with the common I/O port of the processor, the emitter of remaining N-L infrared receiver tubes
It is connect one by one with the I/O port for having ADC function on the processor；
The comparison circuit is used for defeated when the voltage of the emitter of the infrared receiver tube connected is greater than preset reference voltage
Low level out；The high electricity of output when the voltage of the emitter of the infrared receiver tube connected is not more than the preset reference voltage
It is flat；Then the processor is used to determine the specific of the user gesture according to the voltage change of the emitter of each infrared receiver tube
Operation, to identify the user gesture.
4. gesture identifying device as claimed in claim 3, which is characterized in that L=N-M.
5. gesture identifying device as claimed in claim 3, which is characterized in that as the IO for having ADC function on the processor
Mouthful quantity when being M and being less than N, the comparison circuit includes comparator, pull-up resistor and for preset reference electricity to be arranged
The reference circuit of pressure；Wherein:
Input terminal of the input negative terminal of the comparator as the comparison circuit, the input anode and the base of the comparator
The output end of quasi- circuit connects, and the power end of the comparator is connect with the first end of the pull-up resistor, common end access
DC power supply, the output end of the comparator are connect with the second end of the pull-up resistor, and common end is electric as the comparison
The output end on road, the ground terminal ground connection of the comparator.
6. gesture identifying device as claimed in claim 5, which is characterized in that the reference circuit includes slide rheostat and
Three resistance；Wherein:
The first end of the slide rheostat accesses DC power supply, the second end of the slide rheostat and the 3rd resistor
First end connection, the second end ground connection of the 3rd resistor, the adjustable side of the slide rheostat is as the reference circuit
Output end.
7. gesture identifying device as claimed in claim 5, which is characterized in that the comparator is specially LM393 comparator.
8. such as the described in any item gesture identifying devices of claim 3-7, which is characterized in that the processor is specifically used for table
Show that all digital quantities of the voltage change situation of the emitter of infrared receiver tube are converted into a matrix data, and passes through matrix
Algorithm handles the matrix data, with the determination voltage change situation；Institute is determined according to the voltage change situation
The concrete operations of user gesture are stated, to identify the user gesture.
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| CN201811518813.4A CN109635735A (en) | 2018-12-12 | 2018-12-12 | A kind of gesture identifying device |
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| CN201811518813.4A CN109635735A (en) | 2018-12-12 | 2018-12-12 | A kind of gesture identifying device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110456913A (en) * | 2019-08-21 | 2019-11-15 | 华帝股份有限公司 | Infrared gesture action recognition method and device |
| CN111540448A (en) * | 2020-04-20 | 2020-08-14 | 深圳市华智信息科技有限公司 | Intelligent detection method for user behavior, electronic device and computer-readable storage medium |
| CN112735117A (en) * | 2020-12-28 | 2021-04-30 | 深圳市路畅科技股份有限公司 | Filtering method, system and application of IR analysis based on NEC standard |
| CN115077104A (en) * | 2021-03-16 | 2022-09-20 | 云米互联科技(广东)有限公司 | Control method and device, water heater and computer readable storage medium |
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Application publication date: 20190416 |