CN208092700U - A kind of projection display system - Google Patents
A kind of projection display system Download PDFInfo
- Publication number
- CN208092700U CN208092700U CN201820499479.1U CN201820499479U CN208092700U CN 208092700 U CN208092700 U CN 208092700U CN 201820499479 U CN201820499479 U CN 201820499479U CN 208092700 U CN208092700 U CN 208092700U
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- CN
- China
- Prior art keywords
- dimming glass
- computer
- projection display
- display system
- microcontroller
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- 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.)
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Abstract
The utility model discloses a kind of projection display systems, including：Computer, projecting apparatus, dimming glass, imaging film, human bioequivalence device, the imaging film is bonded the back side of the dimming glass, the computer is connect with the dimming glass and projecting apparatus respectively, the human bioequivalence device for judge before dimming glass whether someone, and the information of someone is sent to the computer, the computer controls the projecting apparatus and dimming glass after the information for receiving someone, and the human bioequivalence device includes：Ultrasonic distance sensor, infrared sensor of the human body, the invention incude dual identification using setting human bioequivalence device, by ultrasonic ranging and human body infrared, so that projection display system can accurately identify before dimming glass whether someone, improve the commercial value of product.The system can be used for hall of company, large-scale general merchandise brand shop.
Description
Technical field
The utility model is related to technical field of intelligent equipment, more particularly to a kind of projection display system.
Background technology
Existing optical projection system generally comprises：Computer, projecting apparatus, dimming glass, imaging film, the imaging film are bonded institute
The back side for stating dimming glass, when being projected, generally using in projecting apparatus transmission image to the imaging film.But
Existing optical projection system can not judge before dimming glass whether someone, have a single function.
Utility model content
The utility model solve the technical issues of be：Existing optical projection system has a single function.
The solution that the utility model solves its technical problem is：A kind of projection display system, including：Computer is thrown
Shadow instrument, dimming glass, imaging film, human bioequivalence device, the imaging film are bonded the back side of the dimming glass, the computer
Connect respectively with the dimming glass and projecting apparatus, the human bioequivalence device for judge before dimming glass whether someone, and
The information of someone is sent to the computer, the computer controls the projecting apparatus and tune after the information for receiving someone
Light glass, the human bioequivalence device include：Ultrasonic distance sensor, infrared sensor of the human body, the ultrasonic distance pass
Sensor includes：One output end of ultrasonic activation piece, microphone, radiating circuit, receiving circuit, microcontroller, the microcontroller is logical
It crosses the radiating circuit to connect with the ultrasonic activation piece, an input terminal of the microcontroller passes through the receiving circuit and institute
Microphone connection is stated, an input terminal of the microcontroller is connect with the infrared sensor of the human body.
Further, the radiating circuit includes：The multivibrator being made of NE555, the multivibrator pass through first
Class B power amplifying circuit is connect with the ultrasonic activation piece.
Further, the receiving circuit includes chip CX20106A.
Further, this system further includes infrared touch panel, before the infrared touch panel and the dimming glass
Fitting, the output end of the infrared touch panel are connect with the computer.
Further, the microcontroller is 89C51 microcontrollers.
The utility model has the beneficial effects that：The invention passes through ultrasonic ranging using setting human bioequivalence device
Incude dual identification with human body infrared so that projection display system can accurately identify before dimming glass whether someone, improve production
The commercial value of product.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the system connection diagram of the invention system；
Fig. 2 is the connection relationship diagram of human bioequivalence device；
Fig. 3 is the circuit connection diagram of radiating circuit；
Fig. 4 is the circuit connection diagram of receiving circuit.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Embodiment 1, with reference to figure 1 and Fig. 2, a kind of projection display system, including：Computer a1, projecting apparatus a3, dimming glass
21, imaging film 22, human bioequivalence device 1, the imaging film 22 is bonded the back side of the dimming glass 21, the computer a1 points
It is not connect with the dimming glass 21 and projecting apparatus a3, whether the human bioequivalence device 1 before judging dimming glass 21 for having
People, and the information of someone is sent to the computer a1, described in the computer a1 is controlled after the information for receiving someone
Projecting apparatus a3 and dimming glass 21, the human bioequivalence device 1 include：Ultrasonic distance sensor, infrared sensor of the human body, institute
Stating ultrasonic distance sensor includes：Ultrasonic activation piece b1, microphone b2, radiating circuit, receiving circuit, microcontroller a2, institute
The output end for stating microcontroller a2 is connect by the radiating circuit with the ultrasonic activation piece, an input of the microcontroller
End is connect by the receiving circuit with the microphone, an input terminal of the microcontroller and the infrared sensor of the human body a4
Connection.
With reference to figure 3, the radiating circuit includes：The multivibrator b11, the multivibrator b11 being made of NE555
It is connect with the ultrasonic activation piece b1 by class AB power amplification circuit b12.
The multivibrator b11 includes：NE555 timers U1, first resistor R1, second resistance R2, the first capacitance C1,
The upper end of the second resistance R2 connects the 8th pin of the NE555 timers U1, the lower end difference of the second resistance R2
The 7th pin of the NE555 timers U1, the upper end of first resistor R1 are connected, the lower end of the first resistor R1 is separately connected
The second, the 6th pin of the NE555 timers U1, the anode of the first capacitance C1, the cathode of the first capacitance C1 connect over the ground
It connecing, the first pin of the NE555 timers U1 connects over the ground, the 4th pin connecting node EN of the NE555 timers U1,
The class AB power amplification circuit b12 includes：Third, the 4th resistance R3, R4, the first, second, third pliotron VT1,
VT2, VT3, the first diode D1, the emitter of the pliotron VT1 is connect with the upper end of the 4th resistance R4, described
The lower end of 4th resistance R4 is connect with the collector of the third pliotron VT3, the collection of the first pliotron VT1
Electrode is connect with the base stage of the cathode of the first diode D1, the third pliotron VT3 respectively, the one or two pole
The anode of pipe D1 distinguishes the base stage connection of the upper end of the 3rd resistor R3, the second pliotron VT2, the 3rd resistor R3
Lower end connect with the collector of the second pliotron VT2, the emitter of the second pliotron VT2 respectively with
The upper end connection of the emitter of the third pliotron VT3, the ultrasonic activation piece b1, the ultrasonic activation piece b1
Lower end connect over the ground, the base stage of the first pliotron VT1 is connect with the third pin of the NE555 timers U1.
By adjusting first, second resistance R1, R2, the parameter of the first capacitance C1 can make the NE555 timers U1
Third pin output 40kHz square-wave signal, which is put by the power of the class AB power amplification circuit b12
The driving ultrasonic activation piece b1 after big so that ultrasonic activation piece b1 sends out the ultrasonic wave of 40kHz.
In conjunction with Fig. 4, the receiving circuit includes chip CX20106A, the signal input part IN of the chip CX20106A with
The upper end of the microphone b2 connects, and the lower end of the microphone b2 connects over the ground, the signal output of the chip CX20106A
End is connect with node INT.
Above-mentioned node EN, INT are connect with the GPIO of microcontroller a2 mouths.Configuration ultrasonic ranging is calculated in the microcontroller a2
Method, the ultrasonic ranging algorithm are the prior art, are not the creation point place of the invention.When microcontroller a2 passes through node
EN controls the 4th pin of the NE555 timers U1, can control whether the multivibrator b11 sends out by low and high level
Go out the square wave of 40kHz, then control ultrasonic activation piece b1 whether send out ultrasonic wave, when ultrasonic activation piece b1 at a time
The ultrasonic signal sent out is returned when ultrasonic wave encounters testee back reflection, is just received by microphone b2.So only
It calculates and signal occurs to the time received used in return signal, so that it may calculate object and dimming glass 21 before dimming glass 21
Distance.Distance calculation formula：D=s/2=(c*t)/2
D is the distance between object and dimming glass 21, and s is the distance back and forth of sound wave, and c is the velocity of sound, and t is sound wave institute back and forth
Time.
Judgment threshold is preset in the microcontroller a2, when distance d is less than given threshold, then can determine that object placement
Before dimming glass 21, in order to more determine that the object is human body, the infrared sensor of the human body a4 is by sensing the red of human body
External signal, and the microcontroller a2 is sent the signal to, when the microcontroller a2 receives the infrared sensor of the human body a4
Response signal when, then can determine that human body station before the dimming glass 21, then can inform the computer a1 by serial ports,
The computer a1 control projecting apparatus a3 and dimming glass 21.
The system can be applied to hall of company, large-scale general merchandise brand shop, wherein can realize following work(applied to hall of company
Energy：When guest enters hall of company, dimming glass 21 is arranged on hall of company wall, joyous by projecting apparatus a3 transmissions
Language or company introduction are met, when guest is close to dimming glass 21, after human bioequivalence device 1 recognizes human body, the computer
A1 controls dimming glass 21, and dimming glass 21 becomes transparent, closes projecting apparatus a3, and the clerk of 21 behind of dimming glass rises
It is vertical to applaud, it can be made a profound impression by this scene to visiting guest, promote guest's experience.
Be applied to large-scale general merchandise brand shop, which rolls on wall and plays fashion show video, by video (or figure
Piece) attract the client to come, when client is when close to this 21 certain distance of dimming glass, human bioequivalence device 1 recognizes
After human body, the computer a1 controls dimming glass 21, and dimming glass 21 becomes transparent, closing projecting apparatus a3, in clothes shop
Environment is heaved in sight, and customer experience is increased.
The invention incudes dual identification using setting human bioequivalence device 1, by ultrasonic ranging and human body infrared,
So that projection display system can accurately identify before dimming glass 21 whether someone, increase application scenarios, promote entire product
Commercial value.
As an optimization, this system further includes infrared touch panel 23, the infrared touch panel 23 and the dimming glass
It is bonded before 21, the output end of the infrared touch panel 23 is connect with the computer a1.It is touched so that the system has
Function increases the functionality of system.
As an optimization, the microcontroller a2 is 89C51 microcontrollers.89C51 microcontrollers are very ripe, can reduce total system
Research and development difficulty.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (5)
1. a kind of projection display system, including：Computer, projecting apparatus, dimming glass, imaging film, described in imaging film fitting
The back side of dimming glass, which is characterized in that further include human bioequivalence device, the computer respectively with the dimming glass and throwing
Shadow instrument connects, the human bioequivalence device for judge before dimming glass whether someone, and the information of someone is sent to described
Computer, the computer control the projecting apparatus and dimming glass, the human bioequivalence dress after the information for receiving someone
Set including：Ultrasonic distance sensor, infrared sensor of the human body, the ultrasonic distance sensor include：Ultrasonic activation piece,
One output end of microphone, radiating circuit, receiving circuit, microcontroller, the microcontroller is surpassed by the radiating circuit with described
Acoustic vibration piece connects, and an input terminal of the microcontroller is connect by the receiving circuit with the microphone, the monolithic
One input terminal of machine is connect with the infrared sensor of the human body.
2. a kind of projection display system according to claim 1, it is characterised in that：The radiating circuit includes：By NE555
The multivibrator of composition, the multivibrator are connect by class AB power amplification circuit with the ultrasonic activation piece.
3. a kind of projection display system according to claim 2, it is characterised in that：The receiving circuit includes chip
CX20106A。
4. according to a kind of projection display system of claim 1-3 any one of them, it is characterised in that：It further include infrared touch
Shield, is bonded before the infrared touch panel and the dimming glass, the output end of the infrared touch panel and the meter
Calculation machine connects.
5. a kind of projection display system according to claim 4, it is characterised in that：The microcontroller is 89C51 microcontrollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499479.1U CN208092700U (en) | 2018-04-10 | 2018-04-10 | A kind of projection display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820499479.1U CN208092700U (en) | 2018-04-10 | 2018-04-10 | A kind of projection display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208092700U true CN208092700U (en) | 2018-11-13 |
Family
ID=64058629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820499479.1U Expired - Fee Related CN208092700U (en) | 2018-04-10 | 2018-04-10 | A kind of projection display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208092700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469939A (en) * | 2018-04-10 | 2018-08-31 | 广东极美智能电器科技有限公司 | A kind of projection display system |
-
2018
- 2018-04-10 CN CN201820499479.1U patent/CN208092700U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108469939A (en) * | 2018-04-10 | 2018-08-31 | 广东极美智能电器科技有限公司 | A kind of projection display system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20200410 |
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| CF01 | Termination of patent right due to non-payment of annual fee |