CN106211470A - A kind of LED dimming control system controlled based on 3D gesture and its implementation - Google Patents
A kind of LED dimming control system controlled based on 3D gesture and its implementation Download PDFInfo
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- CN106211470A CN106211470A CN201610716237.9A CN201610716237A CN106211470A CN 106211470 A CN106211470 A CN 106211470A CN 201610716237 A CN201610716237 A CN 201610716237A CN 106211470 A CN106211470 A CN 106211470A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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Abstract
The invention discloses a kind of LED dimming control system controlled based on 3D gesture, including microprocessor, microprocessor is exported by pulse-width signal, PIO controls to be connected with analog switch, analog switch connects four current amplifiers, current amplifier is connected with infrared emission tube, receive pipe receiving infrared-ray transmitting tube signal, infrared emission tube forms 3D gesture induction region with receiving pipe, receive pipe to be connected with current/voltage converter circuit, current/voltage converter circuit successively with voltage amplifier, band filter, integrating circuit, wave filter, microprocessor connects, band filter is connected with microprocessor.The invention also discloses the implementation method of a kind of LED dimming control system controlled based on 3D gesture.The features such as the present invention has not to be affected by ambient light, simple in construction, efficiency are high, of many uses, control mode is simple and effect is notable.
Description
Technical field
The present invention relates to LED technology, a kind of LED dimming control system controlled based on 3D gesture and
Implementation method.
Background technology
Along with LED is in the extensive application of lighting field, because it has outstanding dimming behavior, various control modes also layer goes out
Not poor, meet people's individual demand to signal light control, reach the purpose of on-demand illumination simultaneously.Indoor lamp the most on the market
The control mode of tool mainly has: controllable silicon light modulation, mobile phone A PP or the mode such as remote controller light modulation, employing standard agreement light modulation.With
Upper control method is respectively arranged with advantage, but there is also a lot of drawback, and the problem being primarily present is as follows:
1, the mode of controllable silicon light modulation is the side that the mode using and changing the power frequency supply angle of flow reaches adjusting brightness of LED lamps
Formula, destroys the original sine waveform of alternating current, reduces the power factor of power supply, and electromagnetic interference is serious.Further, light modulation effect
Rate is the highest, easily produces noise and scintillation, constrains dimming behavior and the service life of LED.
2, use by mobile phone A PP or the control mode of remote controller, although can the most intuitively LED be carried out light modulation control
System.But there is also the problems such as pairing, connection, its ageing it is difficult to ensure that.Meanwhile, old people is to this control mode acceptance level
The highest.
3, use the dimming mode of standard agreement to be suitable for the building system illumination of whole building, also want in addition to power line
Increase signal control line, it is impossible to extensively apply at average family.
Summary of the invention
It is an object of the invention to the deficiency overcoming above prior art to exist, it is provided that one is not by ambient light shadow
The LED light modulation control that sound, simple in construction, efficiency are high, of many uses, control mode is simple and effect significantly controls based on 3D gesture
System processed.
Another object of the present invention is to provide the implementation method of a kind of LED dimming control system controlled based on 3D gesture.
In order to achieve the above object, the present invention is by the following technical solutions: a kind of LED light modulation control controlled based on 3D gesture
System processed, including the microprocessor exported for pulse-width signal output, PIO control, pulse width detection, AD input and light modulation,
Microprocessor is exported by pulse-width signal, PIO controls to be connected with analog switch, and analog switch connects four Current amplifier
Device, current amplifier is connected with infrared emission tube, receives pipe receiving infrared-ray transmitting tube signal, infrared emission tube and reception
Pipe composition 3D gesture induction region, receive pipe be connected with current/voltage converter circuit, current/voltage converter circuit successively with electricity
Pressure amplifier, band filter, integrating circuit, wave filter, microprocessor connect, and band filter is connected with microprocessor.
Described microprocessor includes that pulse-width signal output module, PIO control module, pulse width detection module, AD input
Module and light modulation output module；Pulse-width signal output module, PIO control module are connected with analog switch respectively, wave filter
Being connected with AD input module, band filter is connected with pulse width detection module, and light modulation output module is connected with light source.
Described reception pipe is positioned at the centre position in 3D gesture induction region, and four angles in 3D gesture induction region are respectively equipped with
Infrared emission tube.
Described microprocessor is provided with the intervalometer for producing distinct pulse widths pulse signal.
Described light source is LED light source.
The implementation method of the above-mentioned LED dimming control system controlled based on 3D gesture, comprises the following steps:
(1), that microprocessor utilizes internal intervalometer to produce frequency is equal, and the pulse-width signal that pulsewidth is different exports,
Pulse-width signal output signal is connected with the input of analog switch, and microprocessor controls analog switch by PIO module
The way of conducting；
(2), the output current amplifier respectively at four tunnels of analog switch connect, drive infrared transmitting tube；
(3), the infrared signal launched run into gesture when blocking, the infrared signal being reflected back is received pipe and is received, and will
The infrared signal received is converted into current signal, delivers to voltage amplifier after current/voltage converter circuit；
(4), voltage amplifier be connected with band filter, in band filter filtering environmental, other infrared jamming source, obtains
Signal one tunnel out must be demodulated and gives the pulse width detection unit of micro-process with the pulse-width signal as emission source, be used for
Distinguish corresponding transmitting tube；An other road signal is connected with integrating circuit, and pulse signal is changed into sawtooth waveforms；
(5), by obtaining direct current signal after filter filtering, the AD input module of microprocessor internal detect,
Obtaining the infrared signal value returned, its numerical value is inversely proportional to the distance from photocell, after micro-process calculates the value that gesture moves,
It is converted into dim signal；
(6), after microprocessor calculates light modulation value, according to the gesture output dim signal of definition, thus light source is controlled
Switch, brightness, the change of color.
Described reception pipe is positioned at the centre position in 3D gesture induction region, and four angles in 3D gesture induction region are respectively equipped with
Infrared emission tube；The numerical values recited detected by AD and transmitting tube handoff procedure are got in gesture induction district up and down, left and right,
Spinning movement and the position of motion, distance, according to AD sampled value, it is possible to by stagnant in induction region of detection gesture
Stay the time realize single hit and dblclick, long by, short by action, reach 3D gestures detection.
When gesture moves up, receive pipe first it is detected that the AD change in value process of two transmitting tubes in lower section, along with
Gesture continues to move up, then the AD change in value of two transmitting tubes in top detected.
When gesture moves right, receive pipe first it is detected that the AD change in value process of two transmitting tubes in the left side, along with
Gesture continues to move right, then the AD change in value of two transmitting tubes in the right detected.
The present invention, relative to prior art, has such advantages as and effect:
1, the present invention includes for pulse-width signal output, PIO control, pulse width detection, AD input and light modulation output
Microprocessor, microprocessor is exported by pulse-width signal, PIO controls to be connected with analog switch, and analog switch connects four
Current amplifier, current amplifier is connected with infrared emission tube, receives pipe receiving infrared-ray transmitting tube signal, infrared emitting
Pipe forms 3D gesture induction region with receiving pipe, receives pipe and is connected with current/voltage converter circuit, current/voltage converter circuit
It is connected with voltage amplifier, band filter, integrating circuit, wave filter, microprocessor successively, band filter and microprocessor
Connect, there is spies such as not affected by ambient light, simple in construction, efficiency are high, of many uses, control mode is simple and effect is notable
Point.
2, the distinct pulse widths signal that the present invention generates characteristic frequency by intervalometer controls infrared emission tube, thus ensures
Do not affected by ambient temperature, illumination extraneous factor during 3D gesture identification, effectively prevented controller misoperation.
3, the setting of pulse width detection module of the present invention, can precisely identify corresponding transmitter unit signal, thus realize 3D
The direction of motion of gesture.
4, in the present invention, band filter is arranged, and delivers to analog digital conversion interface after integrating circuit again, it is achieved gesture is moved
Dynamic distance detection.
5, middle infrared (Mid-IR) transmitting tube of the present invention, receive pipe and be applicable to the photodiode of different wave length, it is simple to parts selection.
6, in the present invention, the dissimilar interface outputs such as PWM, linearity light adjusting, digital dimming interface are supported in light modulation output.
7,3D gesture of the present invention can identify up and down, left and right, direction of rotation, touch, the action such as single hit and dblclick and distance perspective should
Measure, can realize the parameters such as LED switch, brightness, color, colour temperature are adjusted.
Accompanying drawing explanation
Fig. 1 is the connection block diagram of a kind of LED dimming control system controlled based on 3D gesture；
Fig. 2 is the structural representation in the present invention at 3D gesture induction region；
Flow chart when Fig. 3 is to initialize in the present invention；
Flow chart when Fig. 4 is to simulate switch in the present invention；
Fig. 5 is colour temperature regulation workflow diagram in the present invention；
Fig. 6 is Scene switch operating flow chart of the present invention.
In figure, label is as follows with title:
Detailed description of the invention
For ease of it will be appreciated by those skilled in the art that below in conjunction with the accompanying drawings and the present invention is made the most specifically by embodiment
Bright.
Embodiment 1:
As shown in figs. 1 to 6, a kind of LED dimming control system controlled based on 3D gesture, including for pulse-width signal
Output, PIO control, pulse width detection, AD input and the microprocessor of light modulation output, microprocessor is defeated by pulse-width signal
Go out, PIO controls to be connected with analog switch, and analog switch connects four current amplifiers, current amplifier and infrared emission tube
Connecting, receive pipe receiving infrared-ray transmitting tube signal, infrared emission tube forms 3D gesture induction region with receiving pipe, receives pipe
Be connected with current/voltage converter circuit, current/voltage converter circuit successively with voltage amplifier, band filter, integration electricity
Road, wave filter, microprocessor connect, and band filter is connected with microprocessor.Voltages described above current amplifier, band are logical
Wave filter, integrating circuit, filter kernel device are operational amplifier, consist of corresponding the capacitance resistance ware of external different parameters
The circuit of function；Use the AD27 precision operational amplifier that AD company produces.
Microprocessor in the present embodiment includes pulse-width signal output module, PIO control module, pulse width detection mould
Block, AD input module and light modulation output module；Pulse-width signal output module, PIO control module are respectively with analog switch even
Connecing, wave filter is connected with AD input module, and band filter is connected with pulse width detection module, and light modulation output module is with light source even
Connect；Microprocessor is provided with the intervalometer for producing distinct pulse widths pulse signal.
The pipe that receives in the present embodiment is positioned at the centre position in 3D gesture induction region, four angles in 3D gesture induction region
It is respectively equipped with infrared emission tube；Light source is LED light source.
The implementation method of the above-mentioned LED dimming control system controlled based on 3D gesture, comprises the following steps:
(1), that microprocessor utilizes internal intervalometer to produce frequency is equal, and the pulse-width signal that pulsewidth is different exports,
Pulse-width signal output signal is connected with the input of analog switch, and microprocessor controls analog switch by PIO module
The way of conducting；
(2), the output current amplifier respectively at four tunnels of analog switch connect, drive infrared transmitting tube；
(3), the infrared signal launched run into gesture when blocking, the infrared signal being reflected back is received pipe and is received, and will
The infrared signal received is converted into current signal, delivers to voltage amplifier after current/voltage converter circuit；
(4), voltage amplifier be connected with band filter, in band filter filtering environmental, other infrared jamming source, obtains
Signal one tunnel out must be demodulated and gives the pulse width detection unit of micro-process with the pulse-width signal as emission source, be used for
Distinguish corresponding transmitting tube；An other road signal is connected with integrating circuit, and pulse signal is changed into sawtooth waveforms；
(5), by obtaining direct current signal after filter filtering, the AD input module of microprocessor internal detect,
Obtaining the infrared signal value returned, its numerical value is inversely proportional to the distance from photocell, after micro-process calculates the value that gesture moves,
It is converted into dim signal；
(6), after microprocessor calculates light modulation value, according to the gesture output dim signal of definition, thus light source is controlled
Switch, brightness, the change of color.
Receiving pipe in the present embodiment and be positioned at the centre position in 3D gesture induction region, four angles in 3D gesture induction region are divided
It is not provided with infrared emission tube；The numerical values recited detected by AD and transmitting tube handoff procedure are got in gesture induction district
Under, left and right, spinning movement and the position of motion, distance, according to AD sampled value, it is possible to by detection gesture in induction zone
Holdup time in territory realize single hit and dblclick, long by, short by action, reach 3D gestures detection.
When gesture moves up, receive pipe first it is detected that the AD change in value process of two transmitting tubes in lower section, along with
Gesture continues to move up, then the AD change in value of two transmitting tubes in top detected；When moving down, the most on the contrary.
When gesture moves right, receive pipe first it is detected that the AD change in value process of two transmitting tubes in the left side, along with
Gesture continues to move right, then the AD change in value of two transmitting tubes in the right detected；When being moved to the left, the most on the contrary.
When gesture rotates, receive the order of pipe detection transmitting tube, as (left in received pipe detection transmitting tube 1-2-3-4 successively
On be 1, upper right is 2, and lower-left is 3, and bottom right is 4) AD value be changed to clockwise, otherwise be counterclockwise.For preventing from rotating
Angle causes judging gesture by accident not and is left and right or moves up and down.Before determining that entrance detection rotates gesture mode, definition is double-clicked
Gesture enter rotate detection pattern, disabled orientation detect, it is to avoid gesture motion judge by accident.By detection AD value, thus sense rotation
Change hands direction and the angle of gesture, make and preset output.
Concrete is that native system is positioned at Desk lamp feet, and dimming interface uses the output of two-way high speed PWM, drives the DC/ of LED
DC conversion driving circuit.
Dimming function corresponding to gesture motion is as follows:
1, gesture any direction in induction zone quickly moves the switch being defined as desk lamp；
2, gesture moves left and right as changing desk lamp colour temperature；
3, adjustable desk lamp brightness is moved up and down；
4, gesture rotates the scene mode selecting switching different.
As it is shown on figure 3, PIO module carries out port definition, then transmitter unit parameter is set, enable pulsewidth inspection
Survey, then AD acquisition parameter is set, then light modulation output parameter, the detection of last initiation gesture and light modulation output are set.
As shown in Figure 4, analog switch workflow, in gesture induction region, the (detection of effective hand signal detected
To 1 with the transmitting tube pulse signal of upper channel), and leave induction zone within the setting time, it is defined as switch lamp gesture motion.
As it is shown in figure 5, colour temperature regulation workflow, when definition gesture is moved to the left, the color of lamp is gradient to cold from warm light
Light, on the contrary it is gradient to warm light state from cold light.When gesture side-to-side movement in induction zone, its distance moved exceedes setting
During threshold values, dimming unit starts output and changes colour temperature instruction, and when gesture leaves induction region, light modulation keeps current color temperature value.
Brightness regulation workflow, for increasing brightness when definition gesture moves upward, moves down as reducing brightness.Its inspection
Survey consistent with colour temperature principle with light modulation flow process.
As shown in Figure 6, scene switch operating flow process, definition gesture exceedes the angle of setting when rotating time, change presetting
Good light modulation operative scenario.It is mistaken for gesture to be left and right for preventing the anglec of rotation from causing not or move up and down.Determine into
Before entering detection rotation gesture mode, the gesture entry angle detection pattern that definition is double-clicked, disabled orientation detection simultaneously, thus avoid
Gesture motion is judged by accident.
Embodiment 2
The present embodiment difference from Example 1 is, the PWM output in the present embodiment changes wireless control directives into, its
Communication protocol is identical, can be wirelessly to its brightness adjustment control.
Above-mentioned detailed description of the invention is the preferred embodiments of the present invention, can not limit the invention, appointing of other
What was made without departing from technical scheme changes or the substitute mode of other equivalence, is included in the protection of the present invention
Within the scope of.
Claims (9)
1. the LED dimming control system controlled based on 3D gesture, it is characterised in that: include for pulse-width signal defeated
Go out, PIO control, pulse width detection, AD input and light modulation output microprocessor, microprocessor by pulse-width signal export,
PIO controls to be connected with analog switch, and analog switch connects four current amplifiers, and current amplifier is with infrared emission tube even
Connect, receive pipe receiving infrared-ray transmitting tube signal, infrared emission tube with receive pipe composition 3D gesture induction region, receive pipe with
Current/voltage converter circuit connect, current/voltage converter circuit successively with voltage amplifier, band filter, integrating circuit,
Wave filter, microprocessor connect, and band filter is connected with microprocessor.
The LED dimming control system controlled based on 3D gesture the most according to claim 1, it is characterised in that: described micro-place
Reason device includes pulse-width signal output module, PIO control module, pulse width detection module, AD input module and light modulation output mould
Block；Pulse-width signal output module, PIO control module are connected with analog switch respectively, and wave filter is connected with AD input module,
Band filter is connected with pulse width detection module, and light modulation output module is connected with light source.
The LED dimming control system controlled based on 3D gesture the most according to claim 2, it is characterised in that: described reception
Pipe is positioned at the centre position in 3D gesture induction region, and four angles in 3D gesture induction region are respectively equipped with infrared emission tube.
The LED dimming control system controlled based on 3D gesture the most according to claim 3, it is characterised in that: described micro-place
Reason device is provided with the intervalometer for producing distinct pulse widths pulse signal.
The LED dimming control system controlled based on 3D gesture the most according to claim 4, it is characterised in that: described light source
For LED light source.
6. according to the implementation method of the LED dimming control system controlled based on 3D gesture described in any one of Claims 1 to 5,
It is characterized in that, comprise the following steps:
(1), that microprocessor utilizes internal intervalometer to produce frequency is equal, and the pulse-width signal that pulsewidth is different exports, pulsewidth
Modulated signal output signal is connected with the input of analog switch, and microprocessor controls the conducting of analog switch by PIO module
Way；
(2), the output current amplifier respectively at four tunnels of analog switch connect, drive infrared transmitting tube；
(3), the infrared signal launched run into gesture when blocking, the infrared signal being reflected back is received pipe and is received, and will receive
To infrared signal be converted into current signal, after current/voltage converter circuit, deliver to voltage amplifier；
(4), voltage amplifier be connected with band filter, other infrared jamming source in band filter filtering environmental, it is thus achieved that with
The pulse-width signal that emission source is the same, demodulation signal one tunnel out is given the pulse width detection unit of micro-process, is used for distinguishing
Corresponding transmitting tube；An other road signal is connected with integrating circuit, and pulse signal is changed into sawtooth waveforms；
(5), by obtaining direct current signal after filter filtering, the AD input module of microprocessor internal detect, it is thus achieved that
The infrared signal value returned, its numerical value is inversely proportional to the distance from photocell, after micro-process calculates the value that gesture moves, conversion
Become dim signal；
(6), after microprocessor calculates light modulation value, according to the gesture output dim signal of definition, thus control light source switch,
Brightness, the change of color.
The implementation method of the LED dimming control system controlled based on 3D gesture the most according to claim 6, its feature exists
In: described reception pipe is positioned at the centre position in 3D gesture induction region, and four angles in 3D gesture induction region are respectively equipped with infrared
Line transmitting tube；The numerical values recited detected by AD and transmitting tube handoff procedure are got in gesture induction district up and down, left and right, rotation
Action and the position of motion, distance, according to AD sampled value, it is possible to by detection gesture the delay in induction region time
Between realize single hit and dblclick, long by, short by action, reach 3D gestures detection.
The implementation method of the LED dimming control system controlled based on 3D gesture the most according to claim 7, its feature exists
In: when moving up when gesture, receive pipe first it is detected that the AD change in value process of two transmitting tubes in lower section, along with gesture continues
Continue and move up, then the AD change in value of two transmitting tubes in top detected.
The implementation method of the LED dimming control system controlled based on 3D gesture the most according to claim 7, its feature exists
In: when moving right when gesture, receive pipe first it is detected that the AD change in value process of two transmitting tubes in the left side, along with gesture continues
Continue and move right, then the AD change in value of two transmitting tubes in the right detected.
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| CN110101320A (en) * | 2019-05-10 | 2019-08-09 | 山东欧盛建材有限公司 | A kind of LED mirror cabinet and its application method with gesture identification function |
| CN110307575A (en) * | 2019-07-17 | 2019-10-08 | 华帝股份有限公司 | Non-contact control system and method for range hood |
| CN110307575B (en) * | 2019-07-17 | 2021-04-23 | 华帝股份有限公司 | Non-contact control system and method for range hood |
| CN113133153A (en) * | 2019-12-31 | 2021-07-16 | 欧普照明股份有限公司 | Method for lighting control using gesture recognition, gesture recognition device, and luminaire |
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| CN106211470B (en) | 2018-02-13 |
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Denomination of invention: A 3D gesture based LED dimming control system and its implementation method Granted publication date: 20180213 Pledgee: Agricultural Bank of China Limited Dongyang sub branch Pledgor: HENGDIAN GROUP TOSPO LIGHTING Co.,Ltd. Registration number: Y2024330001739 |