CN105939175A - Submarine CCD optical communication device - Google Patents
Submarine CCD optical communication device Download PDFInfo
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- CN105939175A CN105939175A CN201610380977.XA CN201610380977A CN105939175A CN 105939175 A CN105939175 A CN 105939175A CN 201610380977 A CN201610380977 A CN 201610380977A CN 105939175 A CN105939175 A CN 105939175A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
Abstract
The invention discloses a submarine CCD optical communication device, comprising a processor module, an LED transmitting/receiving module, a sensor module, a serial port communication module, a power module, a central processor, a receiving antenna, an optical detector, a signal processing circuit, a power supply circuit, an LED lamp, a field programmable gate array circuit and a power circuit and the like, wherein the power circuit is separately connected with the central processor and the field programmable gate array circuit; and a solar cell panel, a voltage stabilizing circuit, a power supply controller and a DC power supply circuit are arranged in the power circuit. The node has low power consumption, has communication ability and computing ability, and is small in volume and low in cost, so that the node can be used for constructing a submarine visible light communication network.
Description
Technical field
The present invention relates to the communications field, latent sea, especially a kind of latent sea CCD optical communication apparatus.
Background technology
Solar energy (solar energy), refers to the infrared radiant energy (seeing three kinds of modes that heat energy is propagated) of the sun, mainly
Performance is exactly the sunray often said.It is typically used as generating in the modern times or provides the energy for water heater.From life on earth birth
Since life, the infrared radiant energy existence mainly provided with the sun, and also understand with sun dry part from ancient human, and as system
The method making food, such as salt manufacturing and solarization cured fish etc..In the case of Fossil fuel reduces increasingly, solar energy has become the mankind and has used
The important component part of the energy, and be constantly developed.The utilization of solar energy has photothermal deformation and opto-electronic conversion two ways, too
It is a kind of emerging regenerative resource that sun can generate electricity.Sensu lato solar energy also includes tellurian wind energy, chemical energy, water energy
Deng.
Solar energy is discharged huge nuclear energy by solar interior hydrogen atom generation hydrogen helium fusion and produces, from the sun
Emittance.
The overwhelming majority of necessary for human energy is all directly or indirectly from the sun.Plant discharges oxygen by photosynthesis
Gas, absorbing carbon dioxide, and solar energy is transformed into chemical energy stores in plant.Coal, oil, natural gas etc. are changed
Stone fuel is also to be developed, by the animals and plants being embedded in underground ancient times, the primary energy formed through very long geological epoch.The earth itself
The energy contained is often referred to the energy relevant with the heat energy of earth interior and the energy relevant with nuclear reaction.
Development along with white light LEDs device, it is seen that optical communication technique has obtained increasing attention.Visible ray is wireless
Communication system is mainly made up of optical signal launch end and optical signal receiving terminal.This Technology application is to building latent sea Wi-Fi
Communication there is huge superiority, latent sea wireless sensor network is by multiple low costs, low-power consumption, multi-functional integrated
Microsensor node forms, and these sensor nodes constitute wireless network, have data acquisition, radio communication and information processing
Ability, by multiple sensors with auxiliary electrode inserting knot in a specific region, wireless sensor network can be formed, they lead to
Cross specific agreement, carry out self-organizing efficiently, stably, accurately, and measure in real time by the cooperation of each sensor node, feel
Know and gather the information of various ocean essential, utilize wireless communication technology by observation information real-time Transmission.
Summary of the invention
The goal of the invention of the present invention is, overcomes the deficiency of art methods, it is provided that a kind of low-power consumption, volume are little, low
Cost, has water node under the domestic based on visible light communication of computing capability and communication capacity.
For achieving the above object, it is proposed that following technical scheme:
1, a kind of latent sea CCD optical communication apparatus, including central processing unit, field programmable gate array, processor module,
Reception antenna, photo-detector, signal processing circuit, power circuit, LED, LED transmission/reception module, sensor assembly, string
Port communications module, power module, power circuit, optical key module；Described central processing unit connects optical key module, receives sky
Line, photo-detector, signal processing circuit, power circuit, LED；
Described remote visible light communication system equipment mainly includes transmitting terminal and receiving terminal；Transmitting terminal can use OOK, PPM etc.
Modulation system, the optical signal modulated is launched with the rule of high speed, light and shade change, is used high-power low beam divergence angle by light source
Array LED is as light source, owing to modulation rate is in 100 bit magnitudes, single-chip microcomputer can be used to coordinate C++ software programming to enter
The design of hardware and software of row transmitting terminal, it is achieved the transmission of character string；Receiving terminal, uses CCD to make as photo-detector, hardware device
With high more than frame frequency 100fps, high sensitivity, high-responsivity CCD camera；Camera shoots with frame frequency identical with light source,
And design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtain corresponding
Gray value, thus complete the transmittance process of information, it is achieved the reception of character string；Described charging socket is arranged at the side of door close
End；
Described central processing unit connects optical key module, signal modulation control equipment, LED lamp, reception antenna, photo-detector, letter
Number process circuit；Described signal modulating equipment is responsible for modulation and is generated the original signal of telecommunication；Described LED lamp is monochromatic LED；Institute
Stating photo-detector is that visible light wave range responds preferable CCD electrooptical device；Described reception antenna is the optics of variable multiple
Camera lens；Described signal processing circuit adapts with photo-detector, for the process of video electrical signal, and determines light spot received
Shape, size and average received power；It is atmospheric channel between described searchlight and described reception antenna, the light that light source sends
It is transmitted by atmospheric channel；
Being provided with intelligent mobile terminal in described optical key module, based on intelligent mobile terminal operating system, design is based on virtual
The key of serial ports sends the software module of intelligent mobile terminal, sends out key by the software module of intelligent mobile terminal and believes
Breath, key information is exported by the min-USB mouth of intelligent mobile terminal；The key information exported, based on intelligent mobile terminal
OTG function, in external drive module loading to LED, completes the transmission of key information by LED；Described power supply electricity
Road connects central processing unit and field programmable gate array respectively；Be provided with in described power circuit solar panel,
Mu balanced circuit, power-supply controller of electric and DC power-supply circuit；Described processor module controls LED light source and sends and the information of reception, and
Coordinate the work of each peripheral unit；Communication between described LED transmission/reception module responsible node；Described sensor assembly is responsible for
The collection of target area information；Described serial communication modular is connected with computer, it is achieved the transmitting-receiving of data；Described power module is born
The energy supply of duty node.
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB
With three parts of interconnector；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table connects
To the input of a d type flip flop, trigger drives other logic circuits again or drives I/O, thus constitutes and both can realize
Combination logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line mutual
It is coupled or attached to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and deposits
Storage value in a memory cell determines coupling between logic function and each module of logical block or between module with I/O
Mode, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming.
Described processor module uses the STM32F405RGT6 embedded microprocessor master as communication node of low-power consumption
Control chip, this chip volume is little, light weight, and computing capability can meet system requirements, and internal resource enriches simultaneously, is integrated with
The functions such as USART, GPIO and ADC, so processor module has only to chip piece and simple peripheral circuit thus realizes
Volume is little, light weight and the requirement of computing capability.
Key to be sent is that TTL level signal, i.e.+5V represent high level " 1 ", and 0V represents low level " 0 "；Described
LED drive module includes PNP type paster audion S8550 and related peripheral device thereof, is used for realizing the signal of telecommunication to optical signal
Conversion；The device of described one one-to-many of optical key module；Optical key designs based on single-chip microcomputer STC12C2052AD
A kind of transmitting terminal.
In described LED transmission/reception module, the light source of selection is the Luxeon high-power blue light source of III Enutter
(3W).The feature of this light source is mainly: luminous flux is high；Service life is up to 5*104h；Volume is little；Rated operational current is very big,
It is about 350 ~ 700mA；Lighting time is less than 100s.It addition, light source and aluminium base are applied in combination to dispel the heat by this module,
Fresnel Lenses is used to realize optically focused.Selecting ULN2803A as the driving chip of LED, ULN2803A is that high-voltage great-current reaches
Islington transistor array circuit, this circuit is reverse output type, i.e. input low level voltage, and outfan turns on.This chip is permissible
Simultaneously drive 8 groups of loaded work pieces, there is the features such as current gain height, temperature range width, carrying load ability are strong, be highly suitable as
The driving of LED light source.The optical signal of acceptance is converted into the signal of telecommunication by described visible ray receiver module, and will gather data provides to place
Reason device.Consider miniaturization principle, so using blue light enhancement photodiode PIN-10DP/SB as receiving element, this yuan
Part has 100m2Above photosensitive area, the wavelength (blue green light wavelength band) for 400 ~ 600m is more sensitive, under domestic
The receptor of water node.
Described serial communication modular for Sink node, use the serial communication port USART-Tx on main control chip,
USART-Rx, output Transistor-Transistor Logic level realizes the transmitting-receiving of data.The energy supply of power module responsible node, Sink node is passed through
Serial ports is connected with computer terminal, and energy may be considered unlimited, and ordinary node then needs to power by battery.
The STM32F405RGT6 that described power module uses voltage range to be 1.8V ~ 3.6V is power supply, uses 2 joint five
Battery is powered, and use low noise, the LT1963EST-3.3 of fast transient response is voltage stabilizing chip.LT1963EST-3.3 is steady
The output electric current of pressure chip is 3.3V at 1.5V, output voltage, has the feature such as low noise, fast transient response.
This beneficial effect of the invention:
Method and the technology such as application artificial taste intelligent system, knowledge engineering, pattern recognition, artificial neural network, carry out intelligence
Change, integrated, concert rationality, the computer management system of a new generation that designs and realize.WIFI easily by electromagnetic interference, transmission
Direction is uncontrollable, and password is easily trapped.But visible light communication is a kind of point-to-point transmission mode, has good confidentiality
Advantage.
Optical key and intelligent mobile terminal combine, and android system can well be used to develop mobile phone A AP light key
Software, android system is the operating system increased income based on Linux, be mainly used in mobile terminal (mobile phone and
Flat board) in.Android system is compared with other system platform, has the biggest advantage.Its advantage is topmost is embodied in it
Opening.Android system is the system increased income completely, and all of fan and manufacturer can participate in Android
The exploitation of system, this just development for Android system laid fine basis.Android system has become as
The system that whole world installation amount first is big.Another big advantage of Android system is namely based on the platform of Google, and Google is public
The service products such as the map of department, search, mailbox, it is possible to seamless is applied in Andriod system.
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB
With three parts of interconnector；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table connects
To the input of a d type flip flop, trigger drives other logic circuits again or drives I/O, thus constitutes and both can realize
Combination logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line mutual
It is coupled or attached to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and deposits
Storage value in a memory cell determines coupling between logic function and each module of logical block or between module with I/O
Mode, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming；To better implement the present invention,
Disclosure satisfy that and make solar energy carry out generating electricity not or still meet when night whole system is powered in illuminance
In use, unnecessary electric energy will be stored in accumulator battery, and occur solar illuminating not or rainy weather or
During night, accumulator battery will carry out releasing electricity, and is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric, centering
Central processor and field programmable gate array are powered, and reach 24 hours round-the-clock to make whole system work.This
Described in bright, under domestic based on visible light communication, water node uses STM32F405RGT6 embedded microprocessor as communication section
The main control chip of point, this chip volume is little, light weight, and computing capability can meet system requirements, and internal resource enriches simultaneously, integrated
The functions such as USART, GPIO and ADC, so processor module has only to chip piece and simple peripheral circuit thus reality
Existing volume is little, light weight and the requirement of computing capability.Compare with traditional water sound communication technique, it is seen that water under the domestic of optic communication
Node possesses that low-power consumption, volume be little, low cost, has computing capability and communication capacity, and practicality is extensive, and economic benefit
Height, has huge market prospect.
Remote visible light communication system, have employed OOK modulation system at transmitting terminal, and OOK bandwidth demand is low, and firmly
Part realizes the simplest, has only to the method by directly detection, determined by the presence or absence judging light and receive when decoding
Information time 0 or 1；Make transmitting terminal cost reasonable；At receiving terminal, CCD is used to use as photo-detector, hardware device
High frame frequency (more than 100fps), high sensitivity, high-responsivity CCD camera；Camera shoots with frame frequency identical with light source,
And design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtain corresponding
Gray value, thus complete the transmittance process of information, it is achieved the reception of character string.Selecting CCD as photo-detector, it is sensitive
Degree and responsiveness are more much higher than traditional PIN photodiode.Ining contrast to conventional photodiode, employing CCD camera can
So that the position of light source can clearly indicate out in the picture, so, as long as can interpolate that out the position of signal, in the future can
To use multiple light sources, within the ability to accept of receiving terminal, increase exponentially transfer rate.And CCD is as optical detection
Device can also be simultaneously used in the middle of APT communication system.
Use under domestic based on visible light communication water node to constitute wireless network, have data acquisition, radio communication and
The ability of information processing, by these type of inserting knot multiple in a specific region, can form wireless network, and they are by spy
Fixed agreement, efficiently, stable, carry out self-organizing accurately, and cooperated by each node measure in real time, perception and collection each
Plant the information of ocean essential, utilize wireless communication technology by observation information real-time Transmission.
Accompanying drawing explanation
Fig. 1 is water node structure figure under domestic based on visible light communication；
Fig. 2 is processor module circuit diagram；
Fig. 3 is LED driver circuit figure；
Fig. 4 is visible ray receiver module circuit diagram；
Fig. 5 is power module circuitry figure.
Detailed description of the invention
Below in conjunction with the accompanying drawings the one latent sea CCD optical communication apparatus of the present invention is further described in detail:
2 as it is shown in figure 1, a kind of latent sea CCD optical communication apparatus, including central processing unit, field programmable gate array, place
Reason device module, reception antenna, photo-detector, signal processing circuit, power circuit, LED, LED transmission/reception module, sensing
Device module, serial communication modular, power module, power circuit, optical key module；Described central processing unit connects optical key mould
Block, reception antenna, photo-detector, signal processing circuit, power circuit, LED；
Described remote visible light communication system equipment mainly includes transmitting terminal and receiving terminal；Transmitting terminal can use OOK, PPM etc.
Modulation system, the optical signal modulated is launched with the rule of high speed, light and shade change, is used high-power low beam divergence angle by light source
Array LED is as light source, owing to modulation rate is in 100 bit magnitudes, single-chip microcomputer can be used to coordinate C++ software programming to enter
The design of hardware and software of row transmitting terminal, it is achieved the transmission of character string；Receiving terminal, uses CCD to make as photo-detector, hardware device
With high more than frame frequency 100fps, high sensitivity, high-responsivity CCD camera；Camera shoots with frame frequency identical with light source,
And design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtain corresponding
Gray value, thus complete the transmittance process of information, it is achieved the reception of character string；Described charging socket is arranged at the side of door close
End；
Described central processing unit connects optical key module, signal modulation control equipment, LED lamp, reception antenna, photo-detector, letter
Number process circuit；Described signal modulating equipment is responsible for modulation and is generated the original signal of telecommunication；Described LED lamp is monochromatic LED；Institute
Stating photo-detector is that visible light wave range responds preferable CCD electrooptical device；Described reception antenna is the optics of variable multiple
Camera lens；Described signal processing circuit adapts with photo-detector, for the process of video electrical signal, and determines light spot received
Shape, size and average received power；It is atmospheric channel between described searchlight and described reception antenna, the light that light source sends
It is transmitted by atmospheric channel；
Being provided with intelligent mobile terminal in described optical key module, based on intelligent mobile terminal operating system, design is based on virtual
The key of serial ports sends the software module of intelligent mobile terminal, sends out key by the software module of intelligent mobile terminal and believes
Breath, key information is exported by the min-USB mouth of intelligent mobile terminal；The key information exported, based on intelligent mobile terminal
OTG function, in external drive module loading to LED, completes the transmission of key information by LED；Described power supply electricity
Road connects central processing unit and field programmable gate array respectively；Be provided with in described power circuit solar panel,
Mu balanced circuit, power-supply controller of electric and DC power-supply circuit；Described processor module controls LED light source and sends and the information of reception, and
Coordinate the work of each peripheral unit；Communication between described LED transmission/reception module responsible node；Described sensor assembly is responsible for
The collection of target area information；Described serial communication modular is connected with computer, it is achieved the transmitting-receiving of data；Described power module is born
The energy supply of duty node.
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB
With three parts of interconnector；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table connects
To the input of a d type flip flop, trigger drives other logic circuits again or drives I/O, thus constitutes and both can realize
Combination logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line mutual
It is coupled or attached to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and deposits
Storage value in a memory cell determines coupling between logic function and each module of logical block or between module with I/O
Mode, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming；To better implement the present invention,
Disclosure satisfy that and make solar energy carry out generating electricity not or still meet when night whole system is powered in illuminance.
Key to be sent is that TTL level signal, i.e.+5V represent high level " 1 ", and 0V represents low level " 0 "；Described
LED drive module includes PNP type paster audion S8550 and related peripheral device thereof, is used for realizing the signal of telecommunication to optical signal
Conversion；The device of described one one-to-many of optical key module；Optical key designs based on single-chip microcomputer STC12C2052AD
A kind of transmitting terminal.
In use, unnecessary electric energy will be stored in accumulator battery, and occur that solar illuminating is inadequate or overcast and rainy
When gas or night, accumulator battery will carry out releasing electricity, and is delivered in DC power-supply circuit by the output circuit of power-supply controller of electric,
Central processing unit and field programmable gate array are powered, reach 24 hours round-the-clock to make whole system work.
Described remote visible light communication system specifically includes:
Manipulator, needs modulates baseband signals to light carrier for visible light communication transmitting terminal, and the effect of manipulator is exactly
Such as OOK modulation, PPM modulation etc., information is first modulated into the signal of telecommunication according to different modulation systems.On manipulator hardware
51 conventional single-chip microcomputer series can be used, in order to reach the requirement of higher speed and precision, it is also possible to select FPGA
Deng.
LED drives, and is used for converting electrical signals to optical signal.LED drives module to be used for driving LED light source
Dynamic function, is converted into optical signal by the signal of telecommunication being adjusted to simultaneously and is loaded on LED light source.Such as 51 single-chip microcomputers, it triggers
Mode is that TTL triggers, and completes to drive LED light source.
LED, is the discharger of visible light communication system, in order to meet the demand of communication system, should select merit as far as possible
Rate is big, beam divergence angle is little, white light LEDs light source.Additionally, select array format LED light source can increase luminous power, and to beam spreading
Angle commonly reaches 4 degree.
LED controller, is used for controlling the equipment of light source and camera, completes miscellaneous function.
Atmospheric channel, the flashlight being adjusted to is launched, is transmitted by atmospheric channel by light source, will be subject in transmitting procedure
Impact to atmospheric channel.
Camera lens, camera lens is i.e. reception antenna, mainly completes the seizure receive capabilities of optical signal, and camera lens can enter
Row zoom, changes field of view of receiver angle, and can zoom in or out target.For the ease of cooperating with CCD camera, it is configured with
Motorized zoom lens and encoder, it is possible to achieve computer controls autozoom.
CCD camera, CCD is sensitive component, mainly converts optical signal into signal of telecommunication reimaging.
CCD camera needs to mate the speed of light source, and CCD camera can complete high frame frequency collection.CCD camera passes through
Gigabit Ethernet is connected on computer, and is completed collection and the process of view data by program.
Imaging process, for the modulated optical signal received is received imaging, analyzes its gray-level light intensity, solves
Recalling raw information, the information that completes receives.
As in figure 2 it is shown, described processor module uses the STM32F405RGT6 embedded microprocessor of low-power consumption as logical
The main control chip of letter node, this chip volume is little, light weight, and computing capability can meet system requirements, and internal resource enriches simultaneously,
Be integrated with the functions such as USART, GPIO and ADC, thus processor module have only to chip piece and simple peripheral circuit from
And realize that volume is little, light weight and the requirement of computing capability.
As it is shown on figure 3, in described LED transmission/reception module, the light source of selection is that Luxeon III Enutter is high-power
Blue light source (3W).The feature of this light source is mainly: luminous flux is high；Service life is up to 5*104h；Volume is little；Nominal operation electricity
Stream is very big, about 350 ~ 700mA；Lighting time is less than 100s.It addition, light source and aluminium base are applied in combination use by this module
With heat radiation, Fresnel Lenses is used to realize optically focused.Selecting ULN2803A as the driving chip of LED, ULN2803A is high pressure
Big electric current darlington transistor array circuit, this circuit is reverse output type, i.e. input low level voltage, and outfan turns on.Should
Chip can simultaneously drive 8 groups of loaded work pieces, has the features such as current gain height, temperature range width, carrying load ability are strong, very
It is suitable as the driving of LED light source.
As shown in Figure 4, the optical signal of acceptance is converted into the signal of telecommunication by described visible ray receiver module, collection data is carried
It is supplied to processor.Consider miniaturization principle, so using blue light enhancement photodiode PIN-10DP/SB as receiving unit
Part, this element has 100m2Above photosensitive area, the wavelength (blue green light wavelength band) for 400 ~ 600m is more sensitive, uses
The receptor of water node under domestic.
As it is shown in figure 5, the STM32F405RGT6 that described power module uses voltage range to be 1.8V ~ 3.6V is power supply, adopt
With 2 joint No.5 cells power, and use low noise, the LT1963EST-3.3 of fast transient response is voltage stabilizing chip.
The output electric current of LT1963EST-3.3 voltage stabilizing chip is 3.3V at 1.5V, output voltage, has low noise, fast transient response
Etc. feature.
Above in conjunction with accompanying drawing, embodiments of the invention are described, but the invention is not limited in above-mentioned concrete
Embodiment, above-mentioned detailed description of the invention is only schematic rather than restrictive, those of ordinary skill in the art
Under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection, it may also be made that a lot
Form, within these belong to the protection of the present invention.
Claims (4)
1. a latent sea CCD optical communication apparatus, it is characterised in that include central processing unit, field programmable gate array,
Processor module, reception antenna, photo-detector, signal processing circuit, power circuit, LED, LED transmission/reception module, biography
Sensor module, serial communication modular, power module, power circuit, optical key module；Described central processing unit connects optical key mould
Block, reception antenna, photo-detector, signal processing circuit, power circuit, LED；
Described remote visible light communication system equipment mainly includes transmitting terminal and receiving terminal；Transmitting terminal can use OOK, PPM etc.
Modulation system, the optical signal modulated is launched with the rule of high speed, light and shade change, is used high-power low beam divergence angle by light source
Array LED is as light source, owing to modulation rate is in 100 bit magnitudes, single-chip microcomputer can be used to coordinate C++ software programming to enter
The design of hardware and software of row transmitting terminal, it is achieved the transmission of character string；Receiving terminal, uses CCD to make as photo-detector, hardware device
With high more than frame frequency 100fps, high sensitivity, high-responsivity CCD camera；Camera shoots with frame frequency identical with light source,
And design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtain corresponding
Gray value, thus complete the transmittance process of information, it is achieved the reception of character string；Described charging socket is arranged at the side of door close
End；
Described central processing unit connects optical key module, signal modulation control equipment, LED lamp, reception antenna, photo-detector, letter
Number process circuit；Described signal modulating equipment is responsible for modulation and is generated the original signal of telecommunication；Described LED lamp is monochromatic LED；Institute
Stating photo-detector is that visible light wave range responds preferable CCD electrooptical device；Described reception antenna is the optics of variable multiple
Camera lens；Described signal processing circuit adapts with photo-detector, for the process of video electrical signal, and determines light spot received
Shape, size and average received power；It is atmospheric channel between described searchlight and described reception antenna, the light that light source sends
It is transmitted by atmospheric channel；
Being provided with intelligent mobile terminal in described optical key module, based on intelligent mobile terminal operating system, design is based on virtual
The key of serial ports sends the software module of intelligent mobile terminal, sends out key by the software module of intelligent mobile terminal and believes
Breath, key information is exported by the min-USB mouth of intelligent mobile terminal；The key information exported, based on intelligent mobile terminal
OTG function, in external drive module loading to LED, completes the transmission of key information by LED；Described power supply electricity
Road connects central processing unit and field programmable gate array respectively；Be provided with in described power circuit solar panel,
Mu balanced circuit, power-supply controller of electric and DC power-supply circuit；Described processor module controls LED light source and sends and the information of reception, and
Coordinate the work of each peripheral unit；Communication between described LED transmission/reception module responsible node；Described sensor assembly is responsible for
The collection of target area information；Described serial communication modular is connected with computer, it is achieved the transmitting-receiving of data；Described power module is born
The energy supply of duty node.
One the most according to claim 1 latent sea CCD optical communication apparatus, it is characterised in that described remote visible ray leads to
Communication system equipment mainly includes transmitting terminal and receiving terminal；Transmitting terminal can use the modulation systems such as OOK, PPM, and light source will modulate
Optical signal with at a high speed, the rule of light and shade change launch, use high-power low beam divergence angle array LED as light source, by
Set at 100 bit magnitudes, the software and hardware that single-chip microcomputer can be used to coordinate C++ software programming to carry out transmitting terminal in modulation rate
Meter, it is achieved the transmission of character string；Receiving terminal, use CCD as photo-detector, hardware device use high frame frequency 100fps with
Upper, high sensitivity, high-responsivity CCD camera；Camera shoots with frame frequency identical with light source, and design software is to CCD
Camera carries out collection and the process of data, the rule of modulated signal is presented, and obtains corresponding gray value, thus completes letter
The transmittance process of breath, it is achieved the reception of character string；Described charging socket is arranged at the side of door close；
Described field programmable gate array, inside includes configurable logic blocks CLB, input/output module IOB and interior
Three parts of portion's line；FPGA utilizes small-sized look-up table (16 × 1RAM) to realize combination logic, and each look-up table is connected to one
The input of individual d type flip flop, trigger drives other logic circuits again or drives I/O, thus constituting and both can realize combination
Logic function can realize again the basic logic unit module of sequential logic function, and these intermodules utilize metal connecting line to interconnect
Or it is connected to I/O module；The logic of FPGA loads programming data by internally static storage cell and realizes, and is stored in
Value in memory cell determines the side of connection between logic function and each module of logical block or between module with I/O
Formula, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming.
One the most according to claim 1 latent sea CCD optical communication apparatus, it is characterised in that key to be sent is TTL
Level signal, i.e.+5V represent high level " 1 ", and 0V represents low level " 0 "；Described LED drive module includes PNP type paster three
Pole pipe S8550 and related peripheral device thereof, for realizing the signal of telecommunication conversion to optical signal；Described optical key module one one
To many devices；Optical key is a kind of transmitting terminal based on single-chip microcomputer STC12C2052AD design.
One the most according to claim 1 latent sea CCD optical communication apparatus, it is characterised in that described LED sends/receive mould
In block, sending module uses high-power blue light source, uses high-voltage great-current transistor array circuit as driving chip；Receive
Module uses blue light enhancement photodiode as receiving element；Thus realize transmission and the reception of latent sea light signal；
The optical signal of acceptance is converted into the signal of telecommunication by described receiver module, and will gather data provides to processor；
Light source and aluminium base are applied in combination to dispel the heat by described LED transmission/reception module, use Fresnel Lenses to realize poly-
Light；
Described serial communication modular, for Sink node, uses serial communication port USART-Tx, the USART-Rx on main control chip
, output Transistor-Transistor Logic level realizes the transmitting-receiving of data；Sink node is connected with computer terminal by serial ports.
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| CN201610380977.XA CN105939175A (en) | 2016-06-01 | 2016-06-01 | Submarine CCD optical communication device |
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| CN201610380977.XA CN105939175A (en) | 2016-06-01 | 2016-06-01 | Submarine CCD optical communication device |
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Application publication date: 20160914 |