CN207184483U - A kind of device of the communication means based on white light LEDs - Google Patents
A kind of device of the communication means based on white light LEDs Download PDFInfo
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- CN207184483U CN207184483U CN201720706831.XU CN201720706831U CN207184483U CN 207184483 U CN207184483 U CN 207184483U CN 201720706831 U CN201720706831 U CN 201720706831U CN 207184483 U CN207184483 U CN 207184483U
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- 238000004891 communication Methods 0.000 title claims abstract description 40
- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 230000009466 transformation Effects 0.000 claims abstract description 15
- 239000013307 optical fiber Substances 0.000 claims abstract description 6
- 208000007578 phototoxic dermatitis Diseases 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 230000005669 field effect Effects 0.000 claims 1
- 230000005622 photoelectricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
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Abstract
It the utility model is related to the communications field,The device of more particularly to a kind of communication means based on white light LEDs,Including transmitting terminal and receiving terminal,The transmitting terminal is connected with receiving terminal by wireless signal communication,Transmitting terminal is provided with control system,Control system includes LED light source,LED light source driving circuit,First fiber optical transceiver and the first controller,First controller is electrically connected with LED light source driving circuit,LED light source driving circuit is electrically connected with LED light source,LED light source is electrically connected with fiber optical transceiver,The receiving terminal includes the second fiber optical transceiver,Photoelectric signal transformation circuit and second controller,Second fiber optical transceiver is electrically connected with photoelectric signal transformation circuit,Second controller is electrically connected with photoelectric switching circuit,Second fiber optical transceiver is connected with the first fiber optical transceiver by optical fiber photosensitiveness,Photoelectric signal transformation circuit is provided with photo resistance,The utility model circuit is simple,Method for transmitting signals is stable,Without additionally increasing signal modulation and demodulator circuit.
Description
Technical field
It the utility model is related to the communications field, the device of more particularly to a kind of communication means based on white light LEDs.
Background technology
White light LEDs communication now is small with power consumption, and long working life, reaction speed is fast, and modularity is good, and no electromagnetism is done
Disturb, the advantages that without applying for radio spectrum, the response time is short, and effect on environment is small, small volume, and transmission power is high, and human eye is pacified
Congruent feature, in the special occasions such as aircraft and hospital, the alternative radio communication that electromagnetic interference be present, but these white lights
LED communication means principle is complicated, and cost is higher, and receives and radiating circuit needs modulation /demodulation, complex circuit designs, and
And easily disturbed in modulation and demodulation.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, there is provided communication means of the kind based on white light LEDs
Device.
To solve the above problems, the utility model provides following technical scheme：
A kind of device of the communication means based on white light LEDs, including transmitting terminal and receiving terminal, the transmitting terminal and receiving terminal
Connected by wireless signal communication, transmitting terminal is provided with control system, and control system includes LED light source, LED light source driving electricity
Road, the first fiber optical transceiver and the first controller, the first controller are electrically connected with LED light source driving circuit, LED light source driving
Circuit is electrically connected with LED light source, and LED light source is electrically connected with fiber optical transceiver, and the receiving terminal includes the second optical fiber transceiving
Device, photoelectric signal transformation circuit and second controller, the second fiber optical transceiver are electrically connected with photoelectric signal transformation circuit, and second
Controller is electrically connected with photoelectric switching circuit, and the second fiber optical transceiver is connected with the first fiber optical transceiver by optical fiber photosensitiveness,
Photoelectric signal transformation circuit is provided with photo resistance.
Further, the LED light source driving circuit is FET, the first triode, the second triode, the poles of PNP tri-
The constant-current source circuit that pipe, first resistor, second resistance and power supply form, the emitter stage of a route positive source to the first triode
It is grounded to the colelctor electrode of the first triode to second resistance to LED light source negative pole, another way has positive source to be arrived to first resistor
The emitter stage of second triode is to the colelctor electrode of the second triode to the grid of FET to the source electrode of FET to PNP tri-
The colelctor electrode of pole pipe to PNP triode emitter stage to LED light source positive pole, the base stage of the first triode and the second triode
Emitter stage is electrically connected with, and the colelctor electrode of the base stage of the second triode and the first triode is electrically connected with, the base stage of PNP triode with
The TXD pins of first controller.
Further, the receiving terminal gathers the optical signal of bright change, photoelectric signal transformation electricity using photo resistance
The optical signal that road changes light and shade is converted for corresponding electric signal.
Further, the photoelectric switching circuit includes 3rd resistor, the 4th resistance and the 5th resistance, the three or three pole
Pipe, photo resistance and 5v power supplys, RXD pin of the route 5v positive sources to 3rd resistor to second controller, another way by
A pole of the 5v positive sources to the 4th resistance to photo resistance, another pole ground connection of photo resistance, the colelctor electrode of the 3rd triode
It is electrically connected with the negative pole of 3rd resistor, the base stage of the 3rd triode is connected by a pole of the 5th resistance and photo resistance, the
The emitter stage of three triodes and another pole of photo resistance are electrically connected with.
Further, the pattern of the LED communication uses the pattern of the asynchronous communication of microcontroller.
Further, in addition to by two light paths the communication line formed, one of light path are signal wire, another light
Road is data wire, and signal wire is for determining whether transmit data and light path is blocked.
Further, the light source transmitting of the transmitting terminal and receiving terminal and the place received are located on light source using focus
Convex lens carry out optically focused.
Further, first triode and the second triode are NPN type triode.
Further, the 4DO1 of the model dual-grid tube of the FET.
Further, the model MG42-16 of the photo resistance.
Beneficial effect：A kind of device of communication means based on white light LEDs of the present utility model, Tthe utility model system electricity
Road is simple, and method for transmitting signals is reliable and stable, without additionally increasing signal modulation and demodulator circuit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the circuit diagram of the utility model LED light source driving circuit；
Fig. 3 is the circuit diagram of the utility model photoelectric switching circuit；
Description of reference numerals：Transmitting terminal 1, receiving terminal 2, the second fiber optical transceiver 2a, photoelectric signal transformation circuit 2b are photosensitive
Resistance 2b1,3rd resistor 2b2, the 4th resistance 2b3, the 5th resistance 2b4, the 3rd triode 2b5,5v power supplys 2b6, second controls
Device 2c, LED light source 3a, LED light source driving circuit 3b, FET 3b1, the first triode 3b2, the second triode 3b3, PNP
Triode 3b4, first resistor 3b5, second resistance 3b6, power supply 3b7, the first fiber optical transceiver 3c, the first controller 3d.
Embodiment
With reference to Figure of description and embodiment, specific embodiment of the utility model is described in further detail：
A kind of device of communication means based on white light LEDs according to Fig. 1 to Fig. 3, including transmitting terminal 1 and receiving terminal
2, the transmitting terminal 1 is connected with receiving terminal 2 by wireless signal communication, and transmitting terminal 1 is provided with control system, and control system includes
LED light source 3a, LED light source driving circuit 3b, the first fiber optical transceiver 3c and the first controller 3d, the first controller 3d and LED
Light source driving circuit 3b is electrically connected with, and LED light source driving circuit 3b and LED light source 3a is electrically connected with, LED light source 3a and optical fiber
Transceiver is electrically connected with, and the receiving terminal 2 includes the second fiber optical transceiver 2a, photoelectric signal transformation circuit 2b and second controller
2c, the second fiber optical transceiver 2a and photoelectric signal transformation circuit 2b are electrically connected with, second controller 2c and photoelectric switching circuit electricity
Property connection, the second fiber optical transceiver 2a is connected with the first fiber optical transceiver 3c by optical fiber photosensitiveness, photoelectric signal transformation circuit 2b
Photo resistance 2b1 is provided with, the data of collection are converted into corresponding binary digit amount by control system, and control system again will
Corresponding digital quantity drives LED light source 3a via asynchronous communication pin by LED light source driving circuit 3b, is allowed to light light on and off,
Wherein lamp is bright equivalent to data signal " 1 " namely high level, and lamp goes out equivalent to data signal " 0 " namely low level, so as to
Reach the purpose of transmission data signal.
The LED light source driving circuit 3b is FET 3b1, the first triode 3b2, second triode 3b3, PNP tri-
The constant-current source circuit that pole pipe 3b4, first resistor 3b5, second resistance 3b6 and power supply 3b7 are formed, a routing power 3b7 positive poles arrive
To the first triode 3b2 colelctor electrode to second resistance 3b6 to LED light source 3a, negative pole is grounded first triode 3b2 emitter stage,
Another way has current collection of emitter stage of the power supply 3b7 positive poles to first resistor 3b5 to the second triode 3b3 to the second triode 3b3
Pole is to FET 3b1 grid to FET 3b1 source electrode to PNP triode 3b4 colelctor electrode to PNP triode 3b4
Emitter stage to LED light source 3a positive pole, the first triode 3b2 base stage and the second triode 3b3 emitter stage is electrically connected with,
Second triode 3b3 base stage and the first triode 3b2 colelctor electrode are electrically connected with, PNP triode 3b4 base stage and the first control
Device 3d processed TXD pins, TXD are the pin of the transmitting data of programmable logic controller (PLC), when transmitting terminal 1 gathers from operation field
To after data, data signal, namely a string of low and high levels are converted into, are led when TXD pins receive high level PNP triode 3b4
Logical, the constant-current source circuit that now prime MOS is formed is powered to LED, and LED sends white light, when TXD pins receive low level PNP
Triode 3b4 is not turned on, and the constant-current source circuit that now prime MOS is formed is not powered to LED, and LED does not send white light, so height
Level signal translates into one bright one optical signal to go out, during this, due to the asynchronous communication of the first controller 3d inside
Module can automatically add data signal identification and stop code, ensure that the reliability of data transfer, also, currently on the market
Existing microcontroller all has asynchronous communication module, so greatly reduces cost.
The receiving terminal 2 gathers the optical signal of bright change using photo resistance 2b1, and photoelectric signal transformation circuit 2b will
The optical signal of light and shade change is converted for corresponding electric signal, realizes the conversion of photosignal
The photoelectric switching circuit includes 3rd resistor 2b2, the 4th resistance 2b3 and the 5th resistance 2b4, the 3rd triode
2b5, photo resistance 2b1 and 5v power supply 2b6, a route 5v power supply 2b6 positive poles are to 3rd resistor 2b2 to second controller 2c's
RXD pins, another way by a pole of the 5v power supply 2b6 positive poles to the 4th resistance 2b3 to photo resistance 2b1, photo resistance 2b1's
Another pole ground connection, the 3rd triode 2b5 colelctor electrode are electrically connected with 3rd resistor 2b2 negative pole, the 3rd triode 2b5 base
Pole is connected by the 5th resistance 2b4 with a photo resistance 2b1 pole, the 3rd triode 2b5 emitter stage and photo resistance 2b1
Another pole be electrically connected with.
The pattern of the LED communication uses the pattern of the asynchronous communication of microcontroller, and asynchronous communication is sent out when sending character
Time slot between the character sent can be arbitrary, avoid that the situation for sending loss of data occurs.
Also include the communication line being made up of two light paths, one of light path is signal wire, and another light path is data
Line, signal wire are for determining whether transmit data and light path is blocked.
The light source transmitting of the transmitting terminal 1 and receiving terminal 2 and the place received are located at the convex lens on light source using focus
Carry out optically focused.
The first triode 3b2 and the second triode 3b3 is NPN type triode.
The 4DO1 of the model dual-grid tube of the FET 3b1.
The model MG42-16 of the photo resistance 2b1.
It is described above, only it is preferred embodiment of the present utility model, not technical scope of the present utility model is made
Go out any restrictions, thus it is every any trickle amendment made according to the technical essence of the utility model to above example, equivalent
Change and modification, in the range of still falling within the technical solution of the utility model.
Claims (10)
- A kind of 1. device of the communication means based on white light LEDs, it is characterised in that：Including transmitting terminal (1) and receiving terminal (2), institute State transmitting terminal (1) to be connected by wireless signal communication with receiving terminal (2), transmitting terminal (1) is provided with control system, control system bag Include LED light source (3a), LED light source driving circuit (3b), the first fiber optical transceiver (3c) and the first controller (3d), the first control Device (3d) is electrically connected with LED light source driving circuit (3b), and LED light source driving circuit (3b) is electrically connected with LED light source (3a), LED light source (3a) is electrically connected with fiber optical transceiver, and the receiving terminal (2) includes the second fiber optical transceiver (2a), photosignal Change-over circuit (2b) and second controller (2c), the second fiber optical transceiver (2a) electrically connect with photoelectric signal transformation circuit (2b) Connect, second controller (2c) is electrically connected with photoelectric switching circuit, the second fiber optical transceiver (2a) and the first fiber optical transceiver (3c) is connected by optical fiber photosensitiveness, and photoelectric signal transformation circuit (2b) is provided with photo resistance (2b1).
- A kind of 2. device of the communication means based on white light LEDs according to claim 1, it is characterised in that：The LED light source Drive circuit (3b) is FET (3b1), the first triode (3b2), the second triode (3b3), PNP triode (3b4), the The constant-current source circuit of one resistance (3b5), second resistance (3b6) and power supply (3b7) composition, a routing power (3b7) positive pole to the The emitter stage of one triode (3b2) is negative to second resistance (3b6) to LED light source (3a) to the colelctor electrode of the first triode (3b2) Pole is grounded, and another way has power supply (3b7) positive pole to first resistor (3b5) to the emitter stage of the second triode (3b3) to the two or three The colelctor electrode of pole pipe (3b3) is to the grid of FET (3b1) to the source electrode of FET (3b1) to PNP triode (3b4) Colelctor electrode is to the emitter stage of PNP triode (3b4) to LED light source (3a) positive pole, the base stage and second of the first triode (3b2) The emitter stage of triode (3b3) is electrically connected with, the base stage of the second triode (3b3) and the colelctor electrode electricity of the first triode (3b2) Property connection, the base stage of PNP triode (3b4) and the TXD pins of the first controller (3d).
- A kind of 3. device of the communication means based on white light LEDs according to claim 2, it is characterised in that：The receiving terminal (2) optical signal of bright change, the light that photoelectric signal transformation circuit (2b) changes light and shade are gathered using photo resistance (2b1) Signal is converted for corresponding electric signal.
- A kind of 4. device of the communication means based on white light LEDs according to claim 3, it is characterised in that：The photoelectricity turns Change circuit and include 3rd resistor (2b2), the 4th resistance (2b3) and the 5th resistance (2b4), the 3rd triode (2b5), photosensitive electricity Hinder (2b1) and 5v power supplys (2b6), route 5v power supplys (2b6) positive pole to 3rd resistor (2b2) to second controller (2c) RXD pins, another way is by 5v power supplys (2b6) positive pole to the 4th resistance (2b3) a to pole of photo resistance (2b1), photo resistance Another pole ground connection of (2b1), the colelctor electrode of the 3rd triode (2b5) are electrically connected with the negative pole of 3rd resistor (2b2), and the three or three The base stage of pole pipe (2b5) is connected by the 5th resistance (2b4) with a pole of photo resistance (2b1), the hair of the 3rd triode (2b5) Emitter-base bandgap grading and another pole of photo resistance (2b1) are electrically connected with.
- A kind of 5. device of the communication means based on white light LEDs according to claim 4, it is characterised in that：The LED communication Pattern using microcontroller asynchronous communication pattern.
- A kind of 6. device of the communication means based on white light LEDs according to claim 5, it is characterised in that：Also include by two The communication line of individual light path composition, one of light path are signal wire, and another light path is data wire, and signal wire is to be used to determine Whether transmit data and whether light path is blocked.
- A kind of 7. device of the communication means based on white light LEDs according to claim 6, it is characterised in that：The transmitting terminal (1) and receiving terminal (2) light source transmitting and receive place using focus be located on light source convex lens progress optically focused.
- A kind of 8. device of the communication means based on white light LEDs according to claim 7, it is characterised in that：Described 1st Pole pipe (3b2) and the second triode (3b3) are NPN type triode.
- A kind of 9. device of the communication means based on white light LEDs according to claim 8, it is characterised in that：The field-effect Manage the 4DO1 of the model dual-grid tube of (3b1).
- A kind of 10. device of the communication means based on white light LEDs according to claim 9, it is characterised in that：The photosensitive electricity Hinder the model MG42-16 of (2b1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706831.XU CN207184483U (en) | 2017-06-16 | 2017-06-16 | A kind of device of the communication means based on white light LEDs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706831.XU CN207184483U (en) | 2017-06-16 | 2017-06-16 | A kind of device of the communication means based on white light LEDs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207184483U true CN207184483U (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720706831.XU Expired - Fee Related CN207184483U (en) | 2017-06-16 | 2017-06-16 | A kind of device of the communication means based on white light LEDs |
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| Country | Link |
|---|---|
| CN (1) | CN207184483U (en) |
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2017
- 2017-06-16 CN CN201720706831.XU patent/CN207184483U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20210616 |
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| CF01 | Termination of patent right due to non-payment of annual fee |