CN204633775U - A kind of laser communication demonstration system device utilizing infrared light emission - Google Patents
A kind of laser communication demonstration system device utilizing infrared light emission Download PDFInfo
- Publication number
- CN204633775U CN204633775U CN201520348575.2U CN201520348575U CN204633775U CN 204633775 U CN204633775 U CN 204633775U CN 201520348575 U CN201520348575 U CN 201520348575U CN 204633775 U CN204633775 U CN 204633775U
- Authority
- CN
- China
- Prior art keywords
- infrared light
- light emission
- radio
- cassette player
- loud speaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Optical Communication System (AREA)
Abstract
A kind of laser communication demonstration system device utilizing infrared light emission, it is made up of radio-cassette player, emitter, receiving system, loud speaker, the modulates audio signals exported by radio-cassette player is on several infrared light emission diodes of optical signal transmitter, it is made to send a branch of red light irradiation on several infrared receiver tubes of optical signal receiver at a distance, receiving tube just produces the alternating signal consistent with output audio signal, again this alternating signal is amplified, loud speaker can be promoted and send the consistent sound sent with radio-cassette player.Both novel directly perceived, economical and practical again.
Description
Art
The utility model relates to a kind of laser communication demonstration system device, especially a kind of laser communication demonstration system device utilizing infrared light emission.
Background technology
Since ancient times, the mankind are devoted to invent a kind of communication system that certain vicinal information can be sent to another remote place, in ancient times just like beacon tower, beacon etc. always.But along with the appearance of the development of modern science and technology, particularly radiotechnics, the optical communication technique of those above-mentioned original backwardnesss steps down from the stage of history already.In the process of the mankind to information-intensive society transition, this ancient optical communication has shone again new vitality by optical fiber technology, and this technology is day by day popularized and shown its huge effect in current science and technology life.But from current existing technology, the circuit due to its transmitting portion has electrochemical capacitor C and inductance coil L, and common people not easily understand signal and how to modulate, meanwhile, prior art also have reduction audio undesirable, demonstrate apart from the weak point such as short.
Summary of the invention
In order to overcome existing optical communication technique reduction audio undesirable, demonstrate deficiency apart from the aspect such as short, the utility model provides a kind of laser communication demonstration system device utilizing infrared light emission, and this utility model can make up the original deficiency of this technology.
The utility model solves the technical scheme that its technical problem adopts, the utility model is made up of radio-cassette player, emitter, receiving system, power amplifier and loud speaker, its operation principle is on infrared light emission pipe by the modulates audio signals of radio-cassette player output, on its a branch of Infrared irradiation sent infrared receiver tube a long way off, receiving tube just produces and changes consistent alternating signal with output audio signal, then send the sound consistent with the sound that radio-cassette player is sent by loud speaker can be promoted after the amplification of this alternating signal.Its emitter is primarily of the several device composition of volume adjusting, audio frequency amplification, local signal source and infrared light emission, the intensity that the infrared light diode of infrared light emission sends infrared light can change along with the change of input signal, the audio signal that Electret condenser microphone or radio-cassette player send is superimposed upon on the power supply of infraluminescence pipe after audio frequency power amplifier amplifies, and completes the modulation of voice signal to laser beam.When local signal source in this circuit is in no signal output or without radio-cassette player signal, can replace carrying out laser communication demonstration system.Receiving system circuit comprises infrared acceptor, enlarge leadingly, power amplification and power supply, when being irradiated to infrared light reception diode by the infrared beam of modulates audio signals, infrared light reception diode changes into voltage signal the Strength Changes of infrared light and is added in the input of preposition pipe 5532, and the signal detected due to infrared receiving tube is more weak.Directly can not promote earphone or loud speaker is sounded.Therefore first after enlarge leadingly pipe 5532,9014, enter integrated circuit 7DA2020 again and carry out power amplification, thus promote loud speaker and send and output signal consistent loud sound with radio-cassette player, reach optical communication object.
The beneficial effects of the utility model are, owing to utilizing, infrared light diode emitter light range is farther, light beam is more concentrated, reduction audio is better, and thus presentation process is more directly perceived, and effect is more obvious.Structure is simple, easy to operate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is workflow diagram of the present utility model.
Fig. 2 is the circuit diagram of the emitter shown in the utility model Fig. 1.
Fig. 3 is the circuit diagram of the receiving system shown in the utility model Fig. 1.
In figure 1, radio-cassette player, 2, emitter, 3, receiving system, 4, power amplifier, 5, loud speaker, 6, volume adjusting, 7, audio frequency amplifies, 8, local signal source, 9, infrared light emission device, 10, infrared acceptor, 11, front audio amplifies, 12, power amplification, 13, power supply.
Embodiment
In FIG, the utility model is by radio-cassette player (1), emitter (2), receiving system (3), power amplifier (4) and loud speaker (5) composition, the modulates audio signals exported by radio-cassette player (1) is on the infrared light emission pipe of emitter (2), on the infrared receiver tube of a branch of Infrared irradiation receiving system a long way off (3) that it sends, receiving tube just produces and changes consistent alternating signal with output audio signal, again this alternating signal can be promoted loud speaker (5) after power amplifier (4) amplifies and send the sound consistent with the sound that radio-cassette player (1) is sent.
In the circuit diagram of Fig. 2 emitter (2), emitter (2) is primarily of volume adjusting (6), audio frequency amplifies (7), local signal source (8) and infrared light emission device (9) composition, the intensity of the infrared light that the infrared light diode of infrared light emission device (9) sends can change along with the change of input signal, the audio signal that Electret condenser microphone or radio-cassette player (1) send is superimposed upon on the power supply of infrared light emission pipe after audio frequency amplification (7), complete the modulation of voice signal to laser beam, when local signal source (8) is in no signal output or without radio-cassette player signal, can replace carrying out laser communication demonstration system.
In the circuit diagram of the receiving system (3) of Fig. 3, receiving system (3) is primarily of infrared acceptor (10), front audio amplifies (11), power amplification (12) and power supply (13) composition, when being irradiated to infrared acceptor (10) by the infrared beam of modulates audio signals, infrared acceptor (10) changes into voltage signal the Strength Changes of infrared light and is added in the input of preposition pipe 5532, the signal detected due to infrared acceptor (10) is more weak, directly can not promote earphone or loud speaker (5) is sounded, therefore first through enlarge leadingly pipe 5532, enter integrated circuit 7DA2020 after 9014 again and carry out power amplification, thus promote loud speaker (5) and send and output signal consistent loud sound with radio-cassette player (1).
Claims (1)
1. one kind utilizes the laser communication demonstration system device of infrared light emission, it is by radio-cassette player (1), emitter (2), receiving system (3), power amplifier (4) and loud speaker (5) composition, it is characterized in that: emitter (2) is by volume adjusting (6), audio frequency amplifies (7), local signal source (8) and infrared light emission device (9) composition, the intensity of the infrared light that the infrared light diode of infrared light emission device (9) sends can change along with the change of input signal, receiving system (3) is primarily of infrared acceptor (10), front audio amplifies (11), power amplification (12) and power supply (13) composition, infrared acceptor (10) and front audio amplify between (11) and arrange preposition pipe 5532, between itself and loud speaker (5), amplifier tube 5532 is set, 9014 and power amplification circuit 7DA2020.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348575.2U CN204633775U (en) | 2015-05-26 | 2015-05-26 | A kind of laser communication demonstration system device utilizing infrared light emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520348575.2U CN204633775U (en) | 2015-05-26 | 2015-05-26 | A kind of laser communication demonstration system device utilizing infrared light emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204633775U true CN204633775U (en) | 2015-09-09 |
Family
ID=54052754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520348575.2U Expired - Fee Related CN204633775U (en) | 2015-05-26 | 2015-05-26 | A kind of laser communication demonstration system device utilizing infrared light emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204633775U (en) |
-
2015
- 2015-05-26 CN CN201520348575.2U patent/CN204633775U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103117826A (en) | Voice broadcaster implemented by aid of visible light wireless communication | |
| CN102307063A (en) | Voice information notification system based on LED visible light | |
| CN103925583A (en) | Wireless speaker system and wireless data transmission method | |
| CN103595470A (en) | Low power consumption infrared light communication system | |
| CN202957973U (en) | High-performance amplitude-modulation wireless microphone | |
| CN104601235A (en) | Audio signal visible light transmitting device | |
| CN204119435U (en) | Digital radio is given lessons portable unit | |
| CN204633775U (en) | A kind of laser communication demonstration system device utilizing infrared light emission | |
| CN102394689B (en) | Terahertz wave-based method and system for implementing audio radio communication link | |
| CN204288584U (en) | LED visible light communication audio transmission demonstrator | |
| CN203563068U (en) | Infrared wireless voice communication device | |
| CN203788290U (en) | LED glare flashlight and visible light based portable emergency communication system | |
| CN204031397U (en) | DSP digital radio earphone | |
| CN201571045U (en) | Voice wireless transmission device | |
| CN203289440U (en) | Integrated laser communication experiment device | |
| CN204334883U (en) | A kind of wireless microphone and karaoke OK system | |
| CN104809830A (en) | Wireless remote-control doorbell | |
| CN203773827U (en) | Short-distance LED visible light audio transmission demonstration instrument | |
| CN203859866U (en) | Device for transmitting sound via laser | |
| CN202827297U (en) | Siren for construction machinery vehicles | |
| CN206099991U (en) | Audio communication system based on laser | |
| CN202949569U (en) | Teaching amplification system based on infrared transmission | |
| CN109450461A (en) | A kind of frequency-modulation earphone | |
| CN203134083U (en) | In and out alarm apparatus | |
| CN104794969A (en) | Short-distance LED visible light audio transmission demonstration instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150909 Termination date: 20160526 |