CN204423915U - A kind of Intelligent infrared exhibition booth videocorder circuit - Google Patents
A kind of Intelligent infrared exhibition booth videocorder circuit Download PDFInfo
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- CN204423915U CN204423915U CN201520083531.1U CN201520083531U CN204423915U CN 204423915 U CN204423915 U CN 204423915U CN 201520083531 U CN201520083531 U CN 201520083531U CN 204423915 U CN204423915 U CN 204423915U
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- 230000010355 oscillation Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
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- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010168 coupling process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a kind of Intelligent infrared exhibition booth videocorder circuit, comprises APR9600 sound circuit, LA4425 power amplification circuit, loudspeaker, TX05D infrared reflection switch, playback switch K2, contact switch K1.LA4425 connects through 14 pins of potentiometer W2 and APR9600,1 pin of APR9600 connects through the white line of diode D1, phase inverter F3, potentiometer W1, phase inverter F2, F1 and TX05D, potentiometer W1 parallel diode D2, draws the branch road of serial connection charge electric capacity between F3 and W1.The utility model can respond to visitor by Intelligent infrared, and whether intelligent decision is purpose visitor, if purpose visitor, opening voice is play, introduce exhibit information, loop play, until visitor leaves showpiece region, and sales promotion personnel only need to answer questions to further purpose client, significantly reduce artificial burden.
Description
Technical field
The utility model relates to the infrared induction videocorder circuit design that a kind of exhibition booth of arranging exhibits uses, and is specially a kind of Intelligent infrared exhibition booth videocorder circuit.
Background technology
For attracting visitor to understand exhibition booth product in product fair, sales promotion personnel usually all can be arranged to receive visiting guests, introduce Products, expanding market for commodities with this, promoting company performance.Because product fair flow of the people is comparatively large, visitor is more, and sales promotion personnel need repeatedly to introduce the information such as Products performance, parameter, feature, and physical demands is huge.
Summary of the invention
In order to solve the problem, the utility model provides a kind of Intelligent infrared exhibition booth videocorder circuit, this videocorder circuit can respond to visitor by Intelligent infrared, and whether intelligent decision is purpose visitor, if purpose visitor, opening voice is play, introduce exhibit information, loop play, until visitor leaves showpiece region, and sales promotion personnel only need to answer questions to further purpose client, significantly reduce artificial burden.
For achieving the above object, concrete scheme of the present utility model is:
A kind of Intelligent infrared exhibition booth videocorder circuit, comprise sound circuit, power amplification circuit, loudspeaker, infrared reflection switch, playback switch, contact switch, the power supply termination positive supply of infrared reflection switch, anti-phase isolating diode is connected in series successively between the continuous recording playback control end and the output terminal of infrared emitting switch of sound circuit, 3rd phase inverter, first potentiometer, second phase inverter, first phase inverter, be provided with electric charge between 3rd phase inverter and the second phase inverter and discharge diode, first potentiometer and electric charge discharge diodes in parallel, a branch road is drawn between 3rd phase inverter and the first potentiometer, branch road is connected in series a charging capacitor, the screen layer copper mesh ground connection of infrared reflection switch, the output terminal of power amplification circuit is connected with the signal input part of loudspeaker, an electric capacity and the second potentiometer is provided with between the output pin of sound circuit and power amplification circuit, the output pin of sound circuit is connected with one end of electric capacity, the other end of electric capacity is connected with one end fixed contact of the second potentiometer, the other end fixed contact ground connection of the second potentiometer, the moving contact of the second potentiometer is connected with the signal input part of power amplification circuit, the working power termination positive supply of power amplification circuit, the operator scheme option pin of sound circuit and mode setting terminal pin ground connection respectively, the oscillation resistance pin of sound circuit is connected with one end of an oscillation resistance, the other end ground connection of oscillation resistance, one termination positive supply of contact switch, the other end of contact switch is connected with one end of the reset of sound circuit/stop key pin and contact switch current-limiting resistance simultaneously, the other end ground connection of contact switch current-limiting resistance, one end of playback switch is connected with one end of the recording playback selecting side pin of sound circuit and playback switch current-limiting resistance simultaneously, the other end ground connection of playback switch, another termination positive supply of playback switch current-limiting resistance, the microphone input pin of sound circuit is connected a microphone with between microphone input reference end pin.
Sound circuit is APR9600 speech chip.
Power amplification circuit adopts LA4425 power amplification circuit.
Infrared reflection switch is TX05D infrared reflection switch.
3rd phase inverter, the second phase inverter, the first phase inverter are CD4069 model hex inverter.
Anti-phase isolating diode, electric charge release diode all adopts IN4148 model cache switching diodes.
The beneficial effects of the utility model:
(1) arrival of Intelligent Recognition visitor: circuit design of the present utility model has special infrared induction module, just can start speech play when there being visitor to arrive, when not having visitor, keeps speak silence, decreases noise jamming.
(2) Intelligent Recognition purpose visitor: large product fair, flow of the people is comparatively large, and the visitor stopped before exhibition booth is also more, and for the visitor of short stay, speech play can not be activated.When visitor is greater than 3 seconds at the residence time before exhibition booth, the utility model is identified as purpose visitor, automatically starts speech play exhibit information, loop play, until visitor leaves showpiece region, now if necessary can by the query of the further purpose visitor of sales promotion personnel manual answering.
(3) voice of showpiece introduction can be recorded at any time and change at any time: the voice introducing showpiece can reach 1 minute, and can change at any time and rerecord, the voice of typing can persistence in the chips, can not lose because of reasons such as power-off.
The utility model can respond to visitor by Intelligent infrared, and whether intelligent decision is purpose visitor, if purpose visitor, opening voice is play, introduce exhibit information, loop play, until visitor leaves showpiece region, and sales promotion personnel only need to answer questions to further purpose client, significantly reduce artificial burden.
Accompanying drawing explanation
Fig. 1 is circuit principle structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment 1: see accompanying drawing 1, a kind of Intelligent infrared exhibition booth videocorder circuit, comprises sound circuit 1, power amplification circuit 2, loudspeaker 3, infrared reflection switch 4, playback switch K2, contact switch K1.
Sound circuit 1 adopts APR9600 speech chip, and power amplification circuit 2 adopts LA4425 power amplification circuit, and infrared reflection switch 4 is TX05D infrared reflection switch.
The power end (i.e. red line) of infrared reflection switch 4 connects 12V positive supply, anti-phase isolating diode D1 is connected in series successively between the continuous recording playback control end (i.e. 1 pin) and the output terminal (i.e. white line) of infrared emitting switch 4 of sound circuit 1, 3rd phase inverter F3, first potentiometer W1, second phase inverter F2, first phase inverter F1, 3rd phase inverter F3, second phase inverter F2, first phase inverter F1 adopts CD4069 model hex inverter, be provided with electric charge between 3rd phase inverter F3 and the second phase inverter F2 and discharge diode D2, it is in parallel that first potentiometer W1 and electric charge discharge diode D2, a branch road is drawn between 3rd phase inverter F3 and the first potentiometer W1, branch road is connected in series the charging capacitor C9 of 1 μ F, the screen layer copper mesh ground connection of infrared reflection switch 4, the output terminal (i.e. 4 pins) of power amplification circuit 2 is connected with the signal input part of loudspeaker 3, electric capacity C7 and the second potentiometer W2(and volume potentiometer is provided with) between output 14 pin of sound circuit 1 and power amplification circuit 2, output 14 pin of sound circuit 1 is connected with one end of electric capacity C7, the other end of electric capacity C7 is connected with one end fixed contact of the second potentiometer W2, the other end fixed contact ground connection of the second potentiometer W2, the moving contact of the second potentiometer W2 is connected with the signal input part (i.e. 1 pin) of power amplification circuit 2, the working power end (i.e. 5 pins) of power amplification circuit 2 connects 12V positive supply.
Operator scheme option 9 pin of sound circuit 1 and mode setting terminal 24, 25 pins are ground connection respectively, oscillation resistance 7 pin of sound circuit 1 is connected with one end of oscillation resistance R2, the other end ground connection of oscillation resistance R2, the one termination 6V positive supply of contact switch K1, the other end of contact switch K1 is connected with one end of reset/stop key 23 pin of sound circuit 1 and contact switch current-limiting resistance R1 simultaneously, the other end ground connection of contact switch current-limiting resistance R1, one end of playback switch K2 is connected with one end of recording playback selecting side 27 pin of sound circuit 1 and playback switch current-limiting resistance R6 simultaneously, the other end ground connection of playback switch K2, another termination 6V positive supply of playback switch current-limiting resistance R6, microphone input 17 pin of sound circuit 1 is connected a microphone MIC with between microphone input reference end 18 pin.
Anti-phase isolating diode D1, electric charge release diode D2 all adopts IN4148 model cache switching diodes.
TX05D is actual is infrared emitting, reflection detector switch, compact, the output of module is the twin-core shielding line of about a meter, wherein red line connects positive supply, white line is for exporting, screen layer copper mesh ground connection, its advantage is reliable operation, detecting distance is distant, when operating voltage is 12V, detecting distance can be adjustable between 20 ~ 100 centimetres, can according to the actual conditions adjustment operating distance at scene, exhibition booth, client is made to be close in commodity certain distance, the infrared light beam that TX05D launches reflexes in infrared receiver triode by the health of client, TX05D action, export high level, by not gate F1, F2(i.e. the first phase inverter, second phase inverter) charged to charging capacitor C9 by the first potentiometer W1 after anti-phase and level shaping, the time constant of charging circuit about about 3 seconds, the Time-delayed trigger time can be changed by adjustment W1, if visitor just passes through or short stay from showpiece front, the time stopped is less than 3 seconds, when the voltage at C9 two ends does not also reach the trigging signal of F3, F2 becomes low level, the voltage at C9 two ends is fallen by diode D2 immediate leakage.When visitor's residence time more than 3 seconds time F3 overturn output low level triggering voice circuit APR9600 work, D1 is anti-phase isolating diode.APR9600 is the speech chip that Taiwan company newly releases, and tonequality is good, noise is low, be not afraid of power-off, can recording playback repeatedly, adopts DIP28 dual-in-line plastic package.Its working method is very flexible, by the 24th, 25, the varying level of 9 pin is arranged can have multiple-working mode, here by 24, 25, 9 pin all earth levels, be connected into serial selections control mode, just one section of voice of a typing here, so after 1 pin is triggered by low level, chip plays out only one section of voice, the time of typing voice is relevant with the oscillation resistance R2 of chip, resistance is larger, the time of typing voice is longer, but tonequality can lengthen with the recording playback time and be deteriorated, when oscillation resistance R2 is 24K, the recording playback time is 32 seconds, the present embodiment, when oscillation resistance R2 is 44K, the recording playback time is 60 seconds.APR9600 chip itself can work by Direct driver loudspeaker 3, but power is smaller, only has 50 milliwatts, cannot not hear in the environment that The clamors of the people bubble up, so add LA4425 as power amplification circuit.The feature of LA4425 frequency power amplifying IC is that peripheral cell is little, only need an output coupling capacitor C8 just can provide the rated power of 5W to the loudspeaker 3 of 8 ohm, can play out clear, loud and clear introduce voice by adjusting volume potentiometer W2.
Using method: videocorder will be recorded before using in advance, pins playback switch K2, at this moment can send a sound prompt tone of " ticking " in loudspeaker 3 during recording, then can record facing to microphone MIC.Playback switch K2 is unclamped by after the voice recording of product introduction, a sound of " ticking " can be sent again, prompting End of Tape, if record length exceedes the time that chip allows in loudspeaker 3, allowing send " tick, tick " two sound prompt tone during the time when reaching chip, forcing to terminate recording.Contact switch K1 is stop button, as long as just clicking K1 when voice are introduced at videocorder can stop voice introduction.
Claims (6)
1. an Intelligent infrared exhibition booth videocorder circuit, it is characterized in that: comprise sound circuit, power amplification circuit, loudspeaker, infrared reflection switch, playback switch, contact switch, the power supply termination positive supply of infrared reflection switch, anti-phase isolating diode is connected in series successively between the continuous recording playback control end and the output terminal of infrared emitting switch of sound circuit, 3rd phase inverter, first potentiometer, second phase inverter, first phase inverter, be provided with electric charge between 3rd phase inverter and the second phase inverter and discharge diode, first potentiometer and electric charge discharge diodes in parallel, a branch road is drawn between 3rd phase inverter and the first potentiometer, branch road is connected in series a charging capacitor, the screen layer copper mesh ground connection of infrared reflection switch, the output terminal of power amplification circuit is connected with the signal input part of loudspeaker, an electric capacity and the second potentiometer is provided with between the output pin of sound circuit and power amplification circuit, the output pin of sound circuit is connected with one end of electric capacity, the other end of electric capacity is connected with one end fixed contact of the second potentiometer, the other end fixed contact ground connection of the second potentiometer, the moving contact of the second potentiometer is connected with the signal input part of power amplification circuit, the working power termination positive supply of power amplification circuit, the operator scheme option pin of sound circuit and mode setting terminal pin ground connection respectively, the oscillation resistance pin of sound circuit is connected with one end of an oscillation resistance, the other end ground connection of oscillation resistance, one termination positive supply of contact switch, the other end of contact switch is connected with one end of the reset of sound circuit/stop key pin and contact switch current-limiting resistance simultaneously, the other end ground connection of contact switch current-limiting resistance, one end of playback switch is connected with one end of the recording playback selecting side pin of sound circuit and playback switch current-limiting resistance simultaneously, the other end ground connection of playback switch, another termination positive supply of playback switch current-limiting resistance, the microphone input pin of sound circuit is connected a microphone with between microphone input reference end pin.
2. Intelligent infrared exhibition booth according to claim 1 videocorder circuit, is characterized in that: sound circuit is APR9600 speech chip.
3. Intelligent infrared exhibition booth according to claim 2 videocorder circuit, is characterized in that: power amplification circuit adopts LA4425 power amplification circuit.
4. Intelligent infrared exhibition booth according to claim 3 videocorder circuit, is characterized in that: infrared reflection switch is TX05D infrared reflection switch.
5. Intelligent infrared exhibition booth according to claim 4 videocorder circuit, is characterized in that: the 3rd phase inverter, the second phase inverter, the first phase inverter are CD4069 model hex inverter.
6. Intelligent infrared exhibition booth according to claim 5 videocorder circuit, is characterized in that: anti-phase isolating diode, electric charge release diode all adopts IN4148 model cache switching diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083531.1U CN204423915U (en) | 2015-02-06 | 2015-02-06 | A kind of Intelligent infrared exhibition booth videocorder circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520083531.1U CN204423915U (en) | 2015-02-06 | 2015-02-06 | A kind of Intelligent infrared exhibition booth videocorder circuit |
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| CN204423915U true CN204423915U (en) | 2015-06-24 |
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| CN201520083531.1U Expired - Fee Related CN204423915U (en) | 2015-02-06 | 2015-02-06 | A kind of Intelligent infrared exhibition booth videocorder circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262548A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第四十四研究所 | Light receiving circuit |
-
2015
- 2015-02-06 CN CN201520083531.1U patent/CN204423915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262548A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第四十四研究所 | Light receiving circuit |
| CN105262548B (en) * | 2015-10-20 | 2017-09-22 | 中国电子科技集团公司第四十四研究所 | Optical receiving circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20160206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |