CN207039607U - The organic visible light communication system of high speed based on neuron balanced device - Google Patents
The organic visible light communication system of high speed based on neuron balanced device Download PDFInfo
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- CN207039607U CN207039607U CN201720891405.8U CN201720891405U CN207039607U CN 207039607 U CN207039607 U CN 207039607U CN 201720891405 U CN201720891405 U CN 201720891405U CN 207039607 U CN207039607 U CN 207039607U
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- visible light
- light communication
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- neuron
- programmable gate
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Abstract
The utility model discloses high speed organic visible light communication system of the kind based on neuron balanced device, including：Organic visible light communication transmitting subsystem and organic visible light communication receiving subsystem, organic visible light communication transmitting subsystem include the first programmable gate array, OLED drive module and the OLED luminaire being sequentially connected；First programmable gate array includes signal generator module and signal modulation module；Organic visible light communication receiving subsystem includes photoelectricity testing part, receiving circuit module and the second programmable gate array being sequentially connected；The receiving circuit module includes amplification circuit module and AD analog-to-digital conversion modules；Second programmable gate array includes neuron balanced device and signal demodulation module.The utility model replaces conventional light emitting diodes as visible light communication information source by the use of Organic Light Emitting Diode, because OLED compares advantage possessed by LED, therefore the advantages that the utility model has broad application prospects.
Description
Technical field
The utility model belongs to visible ray wireless communication field, and being related to that a kind of high speed based on neuron balanced device is organic can
See optical communication system.
Background technology
Under appealing green, energy-efficient requirement to illuminating product in the whole world, semi-conductor solid-state light source illumination turns into
The main flow of following illumination market.From professor Deng Qingyun in 1987 find OLED (Organic Light Emitting Diode) with
Come, by the research of more than 30 years, its performance and theoretical research obtained swift and violent development.At present, each monochrome light emissions of OLED
Device technology of preparing tends to be ripe.Wherein white light OLED device is in material structure, material selection range, material purity and function
Great feature in adjustability, and cover LED (Light Emitting Diode) device efficient energy-conservation, large-area manufacturing into
This low advantage, in addition to LED do not possess transparent, frivolous property, wide luminescent spectrum and can be flexible the characteristics of.Therefore, white light
OLED is more competitive on scape and device performance before application, will gradually be applied to include architectural lighting, billboard, just
Take the fields such as consumption market, retail display illumination and inhabitation illumination
Visible light communication technology, as a kind of light that the imperceptible high speed brilliant flash of human eye is sent using luminaire
Signal realizes the Emerging wireless communications technology of information transfer, have it is green, without electromagnetic interference, message transmission rate it is big,
The features such as low in energy consumption, also, it is different from existing radio ripple transmission means, it is seen that the local ability that optic communication only reaches in light
Signal is received, therefore its security performance is high, it is not easy to reveal information.
OLED is had broad application prospects applied to visible light communication.But OLED bandwidth will compared to LED bandwidth
Much narrower, this make it that serious intersymbol interference problem can be produced in high-speed communication, largely effects on the transmission rate of OVLC systems,
Limit applications of the OLED in visible light communication field.
Utility model content
In order to overcome in the prior art due to intersymbol interference problem, the purpose of this utility model caused by the limitation of OLED bandwidth
With providing a kind of organic visible light communication system of high speed based on neuron balanced device, this system overcomes due to OLED arrowbands
The problem of system transfer rate is low caused by width, realize the high-speed communication of OVLC systems.
The purpose of this utility model is achieved through the following technical solutions：A kind of high speed based on neuron balanced device is organic can
See optical communication system, including organic visible light communication transmitting subsystem 10 and organic visible light communication receiving subsystem 20.It is described
Organic visible light communication launches subsystem 10, including the first programmable gate array 11, OLED drive module 12, OLED luminaire
13.Further, first programmable gate array 11 is responsible for collection and processing to information, first programmable gate array
11 include signal generator module 111 and signal modulation module 112；Further, one end of the OLED drive module 12
It is connected with the first programmable gate array 11, the other end of the OLED drive module 12 is connected with OLED luminaire 13, described
OLED drive module 12 is converted to the output signal of the first programmable gate array 11 in the electric current that can drive OLED luminaire 13
Signal.
Organic visible light communication receiving subsystem 20 includes photoelectricity testing part 21, receiving circuit module 22, second
Programmable gate array 23.Further, a port of the receiving circuit module 22 is connected with photoelectricity testing part 21, described
Another port of receiving circuit module 22 is connected with the second programmable gate array 23；Further, the receiving circuit module
22 include amplification circuit module 221 and AD analog-to-digital conversion modules 222, and the amplification circuit module 221 is by photoelectricity testing part 21
The signal received is amplified, and is sampled by AD analog-to-digital conversion modules 222, and then inputs the second programmable gate array
23；Further, second programmable gate array 23 includes neuron balanced device 231 and signal demodulation module 232, further
Ground, the neuron balanced device 231, its sequential equilibrium to optical signal use multilayer perceptron, including neural network input layer
2311st, neutral net hidden layer 2312 and neutral net output layer 2313, the neural network input layer 2311, by set of stall
Tap forms；The neutral net hidden layer 2312, is made up of multiple neurons, and these neurons are parallel, and each neuron
All it is connected with all taps of neural network input layer 2311, further, second programmable gate array 23 will receive
Data signal by neuron balanced device 231 carry out equalization processing, then by signal demodulation module 232 demodulation received
Signal.
Further, the neuron balanced device 231 carries out learning training using backpropagation BP algorithm, described reversely to pass
Broadcast BP algorithm and specifically include following steps：
Step 1：Initialize the threshold value of neuron balanced device；
Step 2：Specify input vector x (n) and output vector d (n)；
Step 3：Reality output vector y (n) is calculated according to input vector, then calculates cost function E (n)；
Step 4：If E (n) is more than designated value, according to formula
Update the threshold value of neuron balanced device, return to step 32；Otherwise, neuron equalizer training is completed.
In formula, ωij(n) the connection weighted value of n-th training, ω are representedij(n+1) connection for representing (n+1)th training adds
Weights, γ represent learning rate,Expression is differentiated.
The utility model replaces conventional light emitting diodes as visible light communication information source using Organic Light Emitting Diode, because
OLED compares advantage possessed by LED, has broad application prospects.
Compared with prior art, the utility model has advantages below and beneficial effect：
1st, LED is replaced as visible light communication information source using OLED, LED component is energy-efficient, large-area manufacturing covering
Outside the advantages such as cost is low, in addition to the transparency that LED does not possess, frivolous property, wide luminescent spectrum and can be flexible the features such as, have
Wide application prospect.
2nd, it is used as channel equalizer by the use of artificial neural network, it is only necessary to neutral net is trained using training data,
And channel circumstance need not be analyzed, make realizing for system simpler.
3rd, using the powerful nonlinear characteristic of neutral net, can effectively solve the intersymbol caused by OLED bandwidth limits
Interference problem, greatly improve the transmission rate of OVLC systems.
Brief description of the drawings
Fig. 1 is the schematic diagram of the organic visible light communication system of high speed based on neuron balanced device.
Fig. 2 is the structure chart of neuron balanced device of the present utility model.
Fig. 3 is the schematic diagram for the backpropagation BP algorithm that the utility model uses.
Embodiment
With reference to example and accompanying drawing, the utility model is described in further detail, but implementation of the present utility model
Mode not limited to this.
Embodiment
As shown in figure 1, the organic visible light communication system of high speed based on neuron balanced device, including organic visible light communication
Launch subsystem 10 and organic visible light communication receiving subsystem 20；It is organic described in organic visible light communication transmitting subsystem
Visible light communication launches subsystem 10, including the first programmable gate array 11, OLED drive module 12, OLED luminaire 13.
Further, first programmable gate array 11 is responsible for collection and processing to information, first programmable gate array 11
Including signal generator module 111 and signal modulation module 112；Further, one end of the OLED drive module 12 with
First programmable gate array 11 is connected, and the other end of the OLED drive module 12 is connected with OLED luminaire 13, described
OLED drive module 12 is converted to the output signal of the first programmable gate array 11 in the electric current that can drive OLED luminaire 13
Signal.Organic visible light communication receiving subsystem 20 includes photoelectricity testing part 21, receiving circuit module 22, second can be compiled
Journey gate array 23.Further, a port of the receiving circuit module 22 is connected with photoelectricity testing part 21, the reception
Another port of circuit module 22 is connected with the second programmable gate array 23；Further, the receiving circuit module 22 wraps
Amplification circuit module 221 and AD analog-to-digital conversion modules 222 are included, the amplification circuit module 221 receives photoelectricity testing part 21
To signal be amplified, and sampled by AD analog-to-digital conversion modules 222, and then input the second programmable gate array 23；
Further, second programmable gate array 23 includes neuron balanced device 231 and signal demodulation module 232.
As shown in Fig. 2 the neuron balanced device 231, its sequential equilibrium to optical signal uses multilayer perceptron, including
Neural network input layer 2311, neutral net hidden layer 2312 and neutral net output layer 2313, the neural network input layer
2311, it is made up of set of stall tap；The neutral net hidden layer 2312, is made up of multiple neurons, and these neurons are simultaneously
OK, and each neuron is connected with all taps of neural network input layer 2311.
As shown in figure 3, the neuron balanced device 231 carries out learning training using backpropagation BP algorithm, including it is following
Step：
Step 1：Initialize the threshold value of neuron balanced device；
Step 2：Specify input vector x (n) and output vector d (n)；
Step 3：Reality output vector y (n) is calculated according to input vector, then calculates cost function E (n)；
Step 4：If E (n) is more than designated value, according to formula
Update the weights of neuron balanced device, return to step 32；Otherwise, neuron equalizer training is completed；
In formula, ωij(n) the connection weighted value of n-th training, ω are representedij(n+1) connection for representing (n+1)th training adds
Weights, γ represent learning rate,Expression is differentiated.
Above-described embodiment is the preferable embodiment of the utility model, but embodiment of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace
Generation, combination, simplify, should be equivalent substitute mode, be included within the scope of protection of the utility model.
Claims (2)
1. a kind of organic visible light communication system of high speed based on neuron balanced device, including：Organic visible light communication transmitting
System (10) and organic visible light communication receiving subsystem (20), it is characterised in that：Organic visible light communication transmitting subsystem
System (10) includes：First programmable gate array (11), OLED drive module (12) and OLED luminaire (13), described first can
Program one end of gate array (11) connection OLED drive module (12)；The other end of the OLED drive module (12)
It is connected with OLED luminaire (13)；First programmable gate array (11) includes signal generator module (111) and signal modulation mould
Block (112)；Organic visible light communication receiving subsystem (20) includes：Photoelectricity testing part (21), receiving circuit module
(22) it is connected with the second programmable gate array (23), the photoelectricity testing part (21) with one end of receiving circuit module (22)；
The other end of the receiving circuit module (22) is connected with the second programmable array (23)；The receiving circuit module (22) includes
Amplification circuit module (221) and AD analog-to-digital conversion modules (222)；It is balanced that second programmable gate array (23) includes neuron
Device (231) and signal demodulation module (232).
2. the organic visible light communication system of the high speed according to claim 1 based on neuron balanced device, it is characterised in that：
The neuron balanced device (231) uses multilayer perceptron to the sequential equilibrium of optical signal, and the multilayer perceptron includes nerve
Network input layer (2311), neutral net hidden layer (2312) and neutral net output layer (2313).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891405.8U CN207039607U (en) | 2017-07-21 | 2017-07-21 | The organic visible light communication system of high speed based on neuron balanced device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720891405.8U CN207039607U (en) | 2017-07-21 | 2017-07-21 | The organic visible light communication system of high speed based on neuron balanced device |
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| Publication Number | Publication Date |
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| CN207039607U true CN207039607U (en) | 2018-02-23 |
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| CN201720891405.8U Expired - Fee Related CN207039607U (en) | 2017-07-21 | 2017-07-21 | The organic visible light communication system of high speed based on neuron balanced device |
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