CN106452579A - Basement special-purpose CCD optical communication air purification device - Google Patents
Basement special-purpose CCD optical communication air purification device Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 54
- 238000004887 air purification Methods 0.000 title abstract 3
- 238000012545 processing Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims description 28
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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
- H04B10/11—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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
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- Engineering & Computer Science (AREA)
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- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
A basement special-purpose CCD optical communication air purification device disclosed by the present invention comprises a processor module, an LED sending/receiving module, a sensor module, a serial port communication module, a power supply module, a central processor, a reception antenna, an optical detector, a signal processing circuit, a power supply circuit, an air purification device, a field programmable gate array circuit and the like. The power supply circuit is connected with the central processor and the field programmable gate array circuit separately, and a solar cell panel, a voltage stabilizing circuit, a power supply controller and a DC power supply circuit are arranged in the power supply circuit. According to the present invention, the nodes are low in power consumption and cost and small in sizes, have the communication capability and the calculation capability, and can be used to establish a basement-visible light communication network.
Description
Technical field
The present invention relates to the basement communications field, the special CCD optic communication air cleaner of especially a kind of basement.
Background technology
Solar energy（solar energy）, refer to the infrared radiant energy of the sun（The three kinds of modes propagated referring to heat energy）, mainly
Performance is exactly the sunray often said.The modern times be typically used as generate electricity or for water heater provide the energy.From life on earth birth
Since life, the just main infrared radiant energy existence being 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 that Fossil fuel reduces increasingly, solar energy has become the mankind and has used
The important component part of the energy, and be constantly developed.Solar energy using having 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 occurred hydrogen helium fusion to discharge huge nuclear energy and produced by solar interior hydrogen atom, 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 body.Coal, oil, natural gas etc. are changed
Stone fuel is also the primary energy being formed through very long geological epoch differentiation by the animals and plants that ancient times are embedded in underground.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 with white light LEDs device is 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 structure basement wireless network
What road communicated has huge superiority, and basement wireless sensor network is by multiple low costs, low-power consumption, multi-functional collection
One-tenthization microsensor node forms, and these sensor nodes constitute wireless network, have data acquisition, radio communication and information
The ability processing, by multiple sensors with auxiliary electrode inserting knot in a specific region, can form wireless sensor network, it
By specific agreement, efficiently, stable, accurately carry out self-organizing, and surveyed in real time by each sensor node cooperation
Amount, perception and the information gathering various ocean essentials, using wireless communication technology by observation information real-time Transmission.
Content of the invention
The goal of the invention of the present invention is to overcome the shortcomings of art methods, there is provided a kind of low-power consumption, small volume, low
Cost, has the housed device based on visible light communication of computing capability and communication capacity.
For achieving the above object it is proposed that following technical scheme：
A kind of special CCD optic communication air cleaner of basement, including central processing unit, field programmable gate array,
Processor module, reception antenna, photo-detector, signal processing circuit, power circuit, air cleaner, LED send/receive
Module, sensor assembly, serial communication modular, power module, power circuit, optical key module；Described central processing unit connects
Optical key module, reception antenna, photo-detector, signal processing circuit, power circuit, air cleaner；
Described air cleaner includes microcontroller, humidifier switch and Optical Receivers, and described Optical Receivers is from sky
Receive LED communication signal in air purifying apparatus group, obtain control instruction to after described LED communication signal processing, and by described control
Instruction processed is transported to microcontroller, and described microcontroller generates the execute instruction of humidifier switch, institute according to described control instruction
Stating humidifier switch is electromagnetic relay, and described electromagnetic relay is connected with the damping device of humidifier；
Described air cleaner also include level sensor, temperature sensor, humidity collection sensor, audible-visual annunciator and
Display circuit, when described Intelligent purifying device is started working according to control instruction, microcontroller is to described level sensor, temperature
Sensor, humidity collection sensor send execute instruction, obtain water yield data signal in humidifier, room-temperature signal and interior
Moisture signal, microprocessor is amplified, measures to described water yield data signal, room-temperature signal and indoor humidity signal, A/D
Including UV air depurator, using ultraviolet light, the antibacterial of in the air and harmful substance are killed, be air purifier
Execution unit；Sensor data acquisition module, for being acquired to external signal and processing, including motion sensor and change
Learn sensor；Power circuit block, carries out blood pressure lowering to daily electric main, provides correspondingly work for air purifier all parts
Make voltage；AC Motor Control module, single-chip microcomputer drives optocoupler motor by controllable silicon, controls the change of its conducting and rotating speed
Change, signal that single-chip microcomputer provides according to sensor, manual key signal carry out tune automatically and manually to the working condition of motor
Whole so that when air purifier operates under different mode of operations, motor is in the rotating speed of corresponding shelves；Uviol lamp management and control
Molding block, optocoupler is driven by controllable silicon by single-chip microcomputer, drives ultraviolet lamp tube, and the working condition feedback letter according to fluorescent tube
Number, judge fluorescent tube whether normal work；Infrared remote control module includes infrared transmitter and receiving circuit, arranges each button and sends out
The infrared waveform penetrated and sequential；Described display control module and key control module are used for air purifier mode of operation
Operation and display；Described Optical Receivers, for receiving the LED communication signal of LED light group transmitting, and is converted to control instruction；
Including UV air depurator, using ultraviolet light, the antibacterial of in the air and harmful substance are killed, be air purifier
Execution unit；Sensor data acquisition module, for being acquired to external signal and processing, including motion sensor and change
Learn sensor；Power circuit block, carries out blood pressure lowering to daily electric main, provides correspondingly work for air purifier all parts
Make voltage；AC Motor Control module, single-chip microcomputer drives optocoupler motor by controllable silicon, controls the change of its conducting and rotating speed
Change, signal that single-chip microcomputer provides according to sensor, manual key signal carry out tune automatically and manually to the working condition of motor
Whole so that when air purifier operates under different mode of operations, motor is in the rotating speed of corresponding shelves；Uviol lamp management and control
Molding block, optocoupler is driven by controllable silicon by single-chip microcomputer, drives ultraviolet lamp tube, and the working condition feedback letter according to fluorescent tube
Number, judge fluorescent tube whether normal work；Infrared remote control module includes infrared transmitter and receiving circuit, arranges each button and sends out
The infrared waveform penetrated and sequential；Described display control module and key control module are used for air purifier mode of operation
Operation and display；Described Optical Receivers, for receiving the LED communication signal of LED light group transmitting, and is converted to control instruction.
Described remote visible light communication system equipment mainly includes transmitting terminal and receiving terminal；Transmitting terminal can using OOK,
The modulation systems such as PPM, the optical signal modulating is launched by light source with the rule of high speed, light and shade change, using high-power low
Beam divergence angle array LED, as light source, because modulation rate is in 100 bit magnitudes, can coordinate C++ software using single-chip microcomputer
Programming carries out the design of hardware and software of transmitting terminal, realizes the transmission of character string；Receiving terminal, using CCD as photo-detector, hardware
Equipment uses high more than frame frequency 100fps, high sensitivity, high-responsivity CCD camera；Camera is carried out with frame frequency identical with light source
Shoot, and design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtains
Corresponding gray value, thus completing the transmittance process of information, realizes the reception of character string；Described charging socket is arranged at door close
Side；
Described central processing unit connects optical key module, signal modulation control device, LED, reception antenna, photo-detector, letter
Number process circuit；Described signal modulation equipment is responsible for modulating the original signal of telecommunication of generation；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 is adapted 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；
It is provided with intelligent mobile terminal, based on intelligent mobile terminal operating system, design is based on virtual in described optical key module
The key of serial ports sends the software module of intelligent mobile terminal, sends out key letter by the software module of intelligent mobile terminal
Breath, key information is exported by the min-USB mouth of intelligent mobile terminal；The key information being exported, based on intelligent mobile terminal
OTG function, in external drive module loading to air cleaner, completes the transmission of key information by LED；Institute
State power circuit and connect central processing unit and field programmable gate array respectively；It is provided with solar energy in described power circuit
Cell panel, mu balanced circuit, power-supply controller of electric and DC power-supply circuit；Described processor module controls LED light source to send and receive
Information, and coordinate each peripheral unit work；Communication between described LED transmission/reception module responsible node；Described sensor die
Block is responsible for the collection of target area information；Described serial communication modular is connected with computer, realizes the transmitting-receiving of data；Described power supply
The energy supply of module responsible node.
Described field programmable gate array, internal inclusion 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, each look-up table connects
To the input of a d type flip flop, trigger to drive other logic circuits again or to drive I/O, thus constitutes and both can achieve
Combination logic function can achieve the basic logic unit module of sequential logic function again, 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 the logic function of logical block and each module or between module and I/O
Mode, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming.
Described processor module adopts the master as communication node for the STM32F405RGT6 embedded microprocessor 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 only needs to chip piece and simple peripheral circuit thus realizing
The requirement of small volume, light weight and computing capability.
Key to be sent is TTL level signal, and that is,+5V represents high level " 1 ", and 0V represents low level " 0 "；Described
LED drive module includes PNP type paster audion S8550 and its related peripheral device, 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 is based on single-chip microcomputer STC12C2052AD design
A kind of transmitting terminal.
In described LED transmission/reception module, the light source of selection is the high-power blue light source of Luxeon III Enutter
(3W).The feature of this light source is mainly：Luminous flux is high；Service life is up to 5*104h；Small volume；Rated operational current is very big,
It is about 350 ~ 700mA；Lighting time is less than 100s.In addition, light source and aluminium base are applied in combination to radiate by this module,
Realize optically focused using Fresnel Lenses.From ULN2803A as LED driving chip, 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, have current gain height, temperature range width, carrying load ability strong the features such as, 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 Optical Receivers, and gathered data is provided 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, for the wavelength of 400 ~ 600m（Blue green light wavelength band）More sensitive, under domestic
The receptor of water node.
Described serial communication modular be directed to Sink node, using 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 it is unlimited that energy may be considered, and ordinary node then needs to power by battery.
It is power supply that described power module adopts the STM32F405RGT6 that voltage range is 1.8V ~ 3.6V, saves No. five using 2
Battery is powering, and is voltage stabilizing chip using the LT1963EST-3.3 of low noise, fast transient response.LT1963EST-3.3 is steady
The output current of pressure chip is 3.3V in 1.5V, output voltage, has the features such as low noise, fast transient response.
This beneficial effect of the invention：
The methods and techniques such as application artificial taste intelligent system, knowledge engineering, pattern recognition, artificial neural network, carry out intelligence
Change, the computer management system of integrated, concert rationality, design and realization a new generation.Using ultraviolet, room air is carried out
Sterilization and the product sterilized, using the Integrated design of motion sensor and two sensor data acquisition modules of chemical sensor,
This air purifier is made to have the function of automatic data collection and adjust automatically working condition it is achieved that the intellectuality of product, energy-conservation
Property with the feature of environmental protection.In addition the combination of remote control technology and visible light communication technology is it is achieved that remote to air purifier
Journey setting and open and close so that air purifier achieves long-distance intelligent control, and is combined with illuminator it is achieved that nothing
Line communicates, and obtains attractive in appearance, succinct Consumer's Experience.
In addition, air cleaner can achieve remotely control by gsm communication module, user can be before going home
Start air cleaner, improve indoor air humidity, close after being away from home, even if it is net to close air before forgetting to go out
Gasifying device, it is also possible to send control instruction by mobile phone, closes air cleaner, and air cleaning of so can making rational planning for fills
The use time put, postpones service life and energy saving., easily by electromagnetic interference, the direction of transmission is uncontrollable, close for WIFI
Code is easily trapped.But visible light communication is a kind of point-to-point transmission mode, has the advantages that good confidentiality.Described humidity
Collection sensor is SHT21 sensor, is not now needing temperature sensor；This sensor can be to the temperature and humidity of environment
It is monitored, humidity precision ± 2% (relative humidity 20%～80%), temperature accuracy ± 0.3 DEG C (25～42 DEG C of ambient temperature).Pass
Sensor, through demarcating, had both been provided that I2C digital interface, had also been provided that PWM simulation output pattern.Because digital communication can be dropped significantly
Low-power consumption, in normal operation, power consumption can be within 3 μ W, and in the case of extending measurement interval, power consumption also can be further
Reduce.During SHT21, A/D circuit is digitized signal conversion.In addition, the resolution of SHT21 also may be used
To carry out the change of 8/12bit to 12/14bit by instruction, be easy to detect state of charge, simultaneously output verification with contribute to
Improve the reliability of communication.
Described microcontroller is to adopt single-chip microcomputer, and its CPU was made up of controller and arithmetical unit, is substantially carried out computing and refers to
Order identification.Memorizer is the erasable flash memory of 8K, and working power is+5V.There are the inverting amplifier of agitator, stone inside it
English crystal and ceramic resonator collectively form self-excited oscillator.Pin is simple and reliable, powerful, easy to use, and has
Low power idle and power-down mode.
Described temperature sensor is DS18B20 sensor, and DS18B20 sensor has a line interface, using simple side
Just, in actual use without outer member, directly powered using data/address bus, measurement temperature scope is larger.Therefore, make
Wider with scope, purposes is larger.
Optical key and intelligent mobile terminal combine, and can be very good to develop mobile phone A AP light key with android system
Software, android system is the operating system increased income based on Linux, is mainly used in mobile terminal（Mobile phone and
Flat board）In.Android system is compared with other system platforms, has very big advantage.Its advantage is topmost to be 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 has just laid fine basis for the development of Android system.Android system has become as
The big system of global installation amount first.Another big advantage of Android system is namely based on the platform of Google, and Google is public
The map of department, search, the service product such as mailbox, can be seamless be applied in Andriod system.
Described field programmable gate array, internal inclusion 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, each look-up table connects
To the input of a d type flip flop, trigger to drive other logic circuits again or to drive I/O, thus constitutes and both can achieve
Combination logic function can achieve the basic logic unit module of sequential logic function again, 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 the logic function of logical block and each module or between module and 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 not make solar energy be generated electricity or still meet when night whole system is powered in illuminance
When using, 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, reach 24 hours round-the-clock make whole system work.This
Described in bright, STM32F405RGT6 embedded microprocessor is adopted as communication section based on water node under the domestic of visible light communication
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
USART, the function such as GPIO and ADC, so processor module only needs to chip piece and simple peripheral circuit thus reality
The requirement of existing small volume, light weight and computing capability.Compare it is seen that water under the domestic of optic communication with traditional water sound communication technique
Node possesses low-power consumption, small volume, 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, employs OOK modulation system in transmitting terminal, OOK bandwidth demand is low, and firmly
Part is realized the most simply, only needing to the method by direct detection, receive by judging that the presence or absence of light to determine when decoding
Information when 0 or 1；Make transmitting terminal cost reasonable；In receiving terminal, using CCD as photo-detector, hardware device uses
High frame frequency（More than 100fps）, high sensitivity, high-responsivity CCD camera；Camera is shot with frame frequency identical with light source,
And design software carries out collection and the process of data to CCD camera, and the rule of modulated signal is presented, obtain corresponding
Gray value, thus completing the transmittance process of information, realize the reception of character string.Select CCD as photo-detector, it is sensitive
Degree and responsiveness are more much higher than traditional PIN photodiode.In contrast to conventional photodiode, can using CCD camera
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 may be used
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.
Using under the domestic based on visible light communication water node constitute wireless network, have data acquisition, radio communication and
The ability of information processing, by multiple such inserting knot in a specific region, can form wireless network, and they pass through spy
Fixed agreement, efficiently, stablizes, accurately carries out self-organizing, and is measured, perceives and gathered each in real time by each node cooperation
The information of kind of ocean essential, using wireless communication technology by observation information real-time Transmission.
Brief description
Fig. 1 is based on water node structure figure under the domestic of visible light communication；
Fig. 2 is processor module circuit diagram；
Fig. 3 is LED driver circuit figure；
Fig. 4 is visible Optical Receivers circuit diagram；
Fig. 5 is power module circuitry figure.
Specific embodiment
Below in conjunction with the accompanying drawings a kind of basement special CCD optic communication air cleaner of the present invention is made detailed further
Describe to the greatest extent：
1, as shown in figure 1, a kind of basement special CCD optic communication air cleaner, can compile including central processing unit, scene
Journey gate-array circuit, processor module, reception antenna, photo-detector, signal processing circuit, power circuit, air cleaner,
LED transmission/reception module, sensor assembly, serial communication modular, power module, power circuit, optical key module；In described
Central processor connects optical key module, reception antenna, photo-detector, signal processing circuit, power circuit, air cleaner；
Described air cleaner includes microcontroller, humidifier switch and Optical Receivers, and described Optical Receivers is from sky
Receive LED communication signal in air purifying apparatus group, obtain control instruction to after described LED communication signal processing, and by described control
Instruction processed is transported to microcontroller, and described microcontroller generates the execute instruction of humidifier switch, institute according to described control instruction
Stating humidifier switch is electromagnetic relay, and described electromagnetic relay is connected with the damping device of humidifier；
Described air cleaner also include level sensor, temperature sensor, humidity collection sensor, audible-visual annunciator and
Display circuit, when described Intelligent purifying device is started working according to control instruction, microcontroller is to described level sensor, temperature
Sensor, humidity collection sensor send execute instruction, obtain water yield data signal in humidifier, room-temperature signal and interior
Moisture signal, microprocessor is amplified, measures to described water yield data signal, room-temperature signal and indoor humidity signal, A/D
Including UV air depurator, using ultraviolet light, the antibacterial of in the air and harmful substance are killed, be air purifier
Execution unit；Sensor data acquisition module, for being acquired to external signal and processing, including motion sensor and change
Learn sensor；Power circuit block, carries out blood pressure lowering to daily electric main, provides correspondingly work for air purifier all parts
Make voltage；AC Motor Control module, single-chip microcomputer drives optocoupler motor by controllable silicon, controls the change of its conducting and rotating speed
Change, signal that single-chip microcomputer provides according to sensor, manual key signal carry out tune automatically and manually to the working condition of motor
Whole so that when air purifier operates under different mode of operations, motor is in the rotating speed of corresponding shelves；Uviol lamp management and control
Molding block, optocoupler is driven by controllable silicon by single-chip microcomputer, drives ultraviolet lamp tube, and the working condition feedback letter according to fluorescent tube
Number, judge fluorescent tube whether normal work；Infrared remote control module includes infrared transmitter and receiving circuit, arranges each button and sends out
The infrared waveform penetrated and sequential；Described display control module and key control module are used for air purifier mode of operation
Operation and display；Described Optical Receivers, for receiving the LED communication signal of LED light group transmitting, and is converted to control instruction；
Including UV air depurator, using ultraviolet light, the antibacterial of in the air and harmful substance are killed, be air purifier
Execution unit；Sensor data acquisition module, for being acquired to external signal and processing, including motion sensor and change
Learn sensor；Power circuit block, carries out blood pressure lowering to daily electric main, provides correspondingly work for air purifier all parts
Make voltage；AC Motor Control module, single-chip microcomputer drives optocoupler motor by controllable silicon, controls the change of its conducting and rotating speed
Change, signal that single-chip microcomputer provides according to sensor, manual key signal carry out tune automatically and manually to the working condition of motor
Whole so that when air purifier operates under different mode of operations, motor is in the rotating speed of corresponding shelves；Uviol lamp management and control
Molding block, optocoupler is driven by controllable silicon by single-chip microcomputer, drives ultraviolet lamp tube, and the working condition feedback letter according to fluorescent tube
Number, judge fluorescent tube whether normal work；Infrared remote control module includes infrared transmitter and receiving circuit, arranges each button and sends out
The infrared waveform penetrated and sequential；Described display control module and key control module are used for air purifier mode of operation
Operation and display；Described Optical Receivers, for receiving the LED communication signal of LED light group transmitting, and is converted to control instruction.
Described remote visible light communication system equipment mainly includes transmitting terminal and receiving terminal；Transmitting terminal can using OOK,
The modulation systems such as PPM, the optical signal modulating is launched by light source with the rule of high speed, light and shade change, using high-power low
Beam divergence angle array LED, as light source, because modulation rate is in 100 bit magnitudes, can coordinate C++ software using single-chip microcomputer
Programming carries out the design of hardware and software of transmitting terminal, realizes the transmission of character string；Receiving terminal, using CCD as photo-detector, hardware
Equipment uses high more than frame frequency 100fps, high sensitivity, high-responsivity CCD camera；Camera is carried out with frame frequency identical with light source
Shoot, and design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtains
Corresponding gray value, thus completing the transmittance process of information, realizes the reception of character string；Described charging socket is arranged at door close
Side；
Described central processing unit connects optical key module, signal modulation control device, LED, reception antenna, photo-detector, letter
Number process circuit；Described signal modulation equipment is responsible for modulating the original signal of telecommunication of generation；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 is adapted 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；
It is provided with intelligent mobile terminal, based on intelligent mobile terminal operating system, design is based on virtual in described optical key module
The key of serial ports sends the software module of intelligent mobile terminal, sends out key letter by the software module of intelligent mobile terminal
Breath, key information is exported by the min-USB mouth of intelligent mobile terminal；The key information being exported, based on intelligent mobile terminal
OTG function, in external drive module loading to air cleaner, completes the transmission of key information by LED；Institute
State power circuit and connect central processing unit and field programmable gate array respectively；It is provided with solar energy in described power circuit
Cell panel, mu balanced circuit, power-supply controller of electric and DC power-supply circuit；Described processor module controls LED light source to send and receive
Information, and coordinate each peripheral unit work；Communication between described LED transmission/reception module responsible node；Described sensor die
Block is responsible for the collection of target area information；Described serial communication modular is connected with computer, realizes the transmitting-receiving of data；Described power supply
The energy supply of module responsible node.
Described field programmable gate array, internal 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, each look-up table is connected to one
The input of individual d type flip flop, trigger to drive other logic circuits again or to drive I/O, thus constitutes and both can achieve combination
Logic function can achieve the basic logic unit module of sequential logic function again, 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 the logic function of logical block and each module or between module and I/O
Formula, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming；To better implement the present invention, energy
Enough meet not make solar energy be generated electricity or still meet when night whole system is powered in illuminance.
Key to be sent is TTL level signal, and that is,+5V represents high level " 1 ", and 0V represents low level " 0 "；Described
LED drive module includes PNP type paster audion S8550 and its related peripheral device, 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 is based on single-chip microcomputer STC12C2052AD design
A kind of transmitting terminal.
When using, unnecessary electric energy will be stored in accumulator battery, and it is inadequate or overcast and rainy solar illuminating
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 make whole system work.
Described humidity collection sensor is SHT21 sensor, is not now needing temperature sensor；This sensor can be right
The temperature and humidity of environment is monitored, humidity precision ± 2% (relative humidity 20%～80%), temperature accuracy ± 0.3 DEG C (environment
25～42 DEG C of temperature).Sensor, through demarcating, had both been provided that I2C digital interface, had also been provided that PWM simulation output pattern.Because
Digital communication can substantially reduce power consumption, and in normal operation, power consumption can be within 3 μ W, in the situation extending measurement interval
Under, power consumption also can reduce further.During SHT21, A/D circuit is digitized signal conversion.In addition,
The resolution of SHT21 can also carry out the change of 8/12bit to 12/14bit by instruction, is easy to detect state of charge, simultaneously
Output verification and, be favorably improved the reliability of communication.
Described microcontroller is to adopt single-chip microcomputer, and its CPU was made up of controller and arithmetical unit, is substantially carried out computing and refers to
Order identification.Memorizer is the erasable flash memory of 8K, and working power is+5V.There are the inverting amplifier of agitator, stone inside it
English crystal and ceramic resonator collectively form self-excited oscillator.Pin is simple and reliable, powerful, easy to use, and has
Low power idle and power-down mode.
Described temperature sensor is DS18B20 sensor, and DS18B20 sensor has a line interface, using simple side
Just, in actual use without outer member, directly powered using data/address bus, measurement temperature scope is larger.Therefore, make
Wider with scope, purposes is larger.
Described remote visible light communication system specifically includes：
Manipulator, needs modulates baseband signals to light carrier for visible light communication transmitting terminal, the effect of manipulator is exactly
Will be according to different modulation systems, such as OOK modulation, PPM modulation etc., information is first modulated into the signal of telecommunication.On manipulator hardware
In order to reach the requirement of higher speed and precision, can also select FPGA using 51 conventional single-chip microcomputer series
Deng.
LED drives, and is used for converting electrical signals to optical signal.LED drive module is used for completing the drive to LED light source
The signal of telecommunication being adjusted to is converted into optical signal simultaneously and is loaded on LED light source by dynamic function.As 51 single-chip microcomputers, its triggering
Mode is TTL triggering, completes LED light source is driven.
LED, is the discharger of visible light communication system, in order to meet the demand of communication system, should select work(as far as possible
Rate is big, beam divergence angle is little, white light LEDs light source.Additionally, selecting array format LED light source can increase luminous power, and to beam spreading
Angle commonly reaches 4 degree.
LED controller, for controlling the equipment of light source and camera, completes miscellaneous function.
Atmospheric channel, the flashlight being adjusted to is launched by light source, is transmitted by atmospheric channel, will be subject in transmitting procedure
Impact to atmospheric channel.
Camera lens, camera lens are reception antenna, mainly complete the seizure receive capabilities of optical signal, and camera lens can enter
Row zoom, changes field of view of receiver angle, can zoom in or out target.For the ease of cooperating with CCD camera, it is configured with
Motorized zoom lenses 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 completes collection and the process of view data by program.
Imaging process, for carrying out receiving imaging the modulated optical signal receiving, analyzes its gray scale light intensity, solution
Recall raw information, the information that completes receives.
As shown in Fig. 2 described processor module adopts 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 USART, the function such as GPIO and ADC, so processor module only need to chip piece and simple peripheral circuit from
And realize the requirement of small volume, light weight and computing capability.
As shown in 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；Small volume；Nominal operation electricity
Stream is very big, about 350 ~ 700mA；Lighting time is less than 100s.In addition, light source and aluminium base are applied in combination use by this module
To radiate, realize optically focused using Fresnel Lenses.From ULN2803A as LED driving chip, ULN2803A is high pressure
High 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, have current gain height, temperature range width, carrying load ability strong the features such as, 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 Optical Receivers, gathered data is carried
It is supplied to processor.Consider miniaturization principle, thus first as receiving using blue light enhancement photodiode PIN-10DP/SB
Part, this element has 100m2Above photosensitive area, for the wavelength of 400 ~ 600m（Blue green light wavelength band）More sensitive, use
The receptor of water node under domestic.
As shown in figure 5, it is power supply that described power module adopts the STM32F405RGT6 that voltage range is 1.8V ~ 3.6V, adopt
Powered with 2 section No.5 cells, and be voltage stabilizing chip using the LT1963EST-3.3 of low noise, fast transient response.
The output current of LT1963EST-3.3 voltage stabilizing chip is 3.3V in 1.5V, output voltage, has low noise, fast transient response
The features such as.
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 specific embodiment is only schematically, rather than restricted, 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, also can make a lot
Form, these belong within the protection of the present invention.
Claims (5)
1. a kind of special CCD optic communication air cleaner of basement is it is characterised in that include air cleaner, centre
Reason device, field programmable gate array, processor module, reception antenna, photo-detector, signal processing circuit, power circuit,
LED transmission/reception module, sensor assembly, serial communication modular, power module, power circuit, optical key module；In described
Central processor connects optical key module, reception antenna, photo-detector, signal processing circuit, power circuit, air cleaner；
Described air cleaner includes UV air depurator, using ultraviolet light, the antibacterial of in the air and harmful substance is entered
Row is killed, and is the execution unit of air purifier；Sensor data acquisition module, for being acquired to external signal and locating
Reason, including motion sensor and chemical sensor；Power circuit block, carries out blood pressure lowering to daily electric main, is air cleaning
Device all parts provide correspondingly running voltage；AC Motor Control module, single-chip microcomputer drives optocoupler to drive electricity by controllable silicon
Machine, controls its conducting and the change of rotating speed, signal that single-chip microcomputer provides according to sensor, the work to motor for the manual key signal
State carries out adjustment automatically and manually so that when air purifier operates under different mode of operations, motor is in
The rotating speed of corresponding shelves；Ultraviolet lamp tube control module, optocoupler is driven by controllable silicon by single-chip microcomputer, drives ultraviolet lamp tube, and root
Working condition according to fluorescent tube feeds back signal, judges fluorescent tube whether normal work；Infrared remote control module include infrared transmitter with
Receiving circuit, arranges infrared waveform and the sequential of the transmitting of each button；Described display control module and key control module are used
In the operation to air purifier mode of operation and display；Described Optical Receivers, the LED for receiving LED light group transmitting leads to
Letter signal, and be converted to control instruction；Including UV air depurator, using ultraviolet light to the antibacterial of in the air and nuisance
Matter is killed, and is the execution unit of air purifier；Sensor data acquisition module, for external signal is acquired with
Process, including motion sensor and chemical sensor；Power circuit block, carries out blood pressure lowering to daily electric main, is that air is net
Changing device all parts provides correspondingly running voltage；AC Motor Control module, single-chip microcomputer drives optocoupler to drive by controllable silicon
Motor, controls its conducting and the change of rotating speed, signal that single-chip microcomputer provides according to sensor, the work to motor for the manual key signal
Carry out adjustment automatically and manually as state so that when air purifier operates under different mode of operations, at motor
Rotating speed in corresponding shelves；Ultraviolet lamp tube control module, optocoupler is driven by controllable silicon by single-chip microcomputer, drives ultraviolet lamp tube, and
Signal is fed back according to the working condition of fluorescent tube, judges fluorescent tube whether normal work；Infrared remote control module includes infrared transmitter
With receiving circuit, infrared waveform and the sequential of the transmitting of each button are set；Described display control module and key control module
For to the operation of air purifier mode of operation and display；Described Optical Receivers, for receiving the LED of LED light group transmitting
Signal of communication, and be converted to control instruction.
2. described in, 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 modulating is launched by light source with the rule of high speed, light and shade change, using high-power low beam spreading
Angle array LED, as light source, because modulation rate is in 100 bit magnitudes, can coordinate C++ software programming using single-chip microcomputer
Carry out the design of hardware and software of transmitting terminal, realize the transmission of character string；Receiving terminal, using CCD as photo-detector, hardware device
Using high more than frame frequency 100fps, high sensitivity, high-responsivity CCD camera；Camera is clapped with frame frequency identical with light source
Take the photograph, and design software carries out collection and the process of data to CCD camera, the rule of modulated signal is presented, obtains phase
The gray value answered, thus completing the transmittance process of information, realizes the reception of character string；Described charging socket is arranged at door close
Side；
Described central processing unit connects optical key module, signal modulation control device, LED lamp, reception antenna, photo-detector, letter
Number process circuit；Described signal modulation equipment is responsible for modulating the original signal of telecommunication of generation；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 is adapted 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；
It is provided with intelligent mobile terminal, based on intelligent mobile terminal operating system, design is based on virtual in described optical key module
The key of serial ports sends the software module of intelligent mobile terminal, sends out key letter by the software module of intelligent mobile terminal
Breath, key information is exported by the min-USB mouth of intelligent mobile terminal；The key information being exported, based on intelligent mobile terminal
OTG function, in external drive module loading to air cleaner, completes the transmission of key information by LED；Institute
State power circuit and connect central processing unit and field programmable gate array respectively；It is provided with solar energy in described power circuit
Cell panel, mu balanced circuit, power-supply controller of electric and DC power-supply circuit；Described processor module controls LED light source to send and receive
Information, and coordinate each peripheral unit work；Communication between described LED transmission/reception module responsible node；Described sensor die
Block is responsible for the collection of target area information；Described serial communication modular is connected with computer, realizes the transmitting-receiving of data；Described power supply
The energy supply of module responsible node.
3. a kind of special CCD optic communication air cleaner of basement according to claim 1 is it is characterised in that described
Remote visible light communication system equipment mainly includes transmitting terminal and receiving terminal；Transmitting terminal can use the modulation methods such as OOK, PPM
Formula, the optical signal modulating is launched by light source with the rule of high speed, light and shade change, using high-power low beam divergence angle array
LED, as light source, because modulation rate is in 100 bit magnitudes, can carry out sending out using single-chip microcomputer cooperation C++ software programming
Penetrate the design of hardware and software at end, realize the transmission of character string；Receiving terminal, using CCD as photo-detector, hardware device is using high
More than frame frequency 100fps, high sensitivity, high-responsivity CCD camera；Camera is shot 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, obtains corresponding ash
Angle value, thus completing the transmittance process of information, realizes the reception of character string；Described charging socket is arranged at the side of door close；
Described field programmable gate array, internal 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, each look-up table is connected to one
The input of individual d type flip flop, trigger to drive other logic circuits again or to drive I/O, thus constitutes and both can achieve combination
Logic function can achieve the basic logic unit module of sequential logic function again, 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 the logic function of logical block and each module or between module and I/O
Formula, and finally determine the function achieved by FPGA, FPGA allows unlimited number of programming.
4. a kind of special CCD optic communication air cleaner of basement according to claim 1 is it is characterised in that pending
Key is sent to be TTL level signal, that is,+5V represents high level " 1 ", 0V represents low level " 0 "；Described LED drive module bag
Include PNP type paster audion S8550 and its related peripheral device, for realizing the signal of telecommunication to the conversion of optical signal；Described light
The device of one one-to-many of key module；Optical key is a kind of transmitting terminal based on single-chip microcomputer STC12C2052AD design.
5. a kind of special CCD optic communication air cleaner of basement according to claim 1 is it is characterised in that described
In LED transmission/reception module, sending module adopts high-power blue light source, is made using high-voltage great-current transistor array circuit
For driving chip；Receiver module adopts blue light enhancement photodiode as receiving element；Thus realizing basement optical signal
Send and receive；
The optical signal of acceptance is converted into the signal of telecommunication by described receiver module, and gathered data is provided to processor；
Light source and aluminium base are applied in combination to radiate by described LED transmission/reception module, are realized poly- using Fresnel Lenses
Light；
Described serial communication modular is directed to Sink node, using serial communication port USART-Tx, USART-Rx on main control chip
, export the transmitting-receiving that Transistor-Transistor Logic level realizes data；Sink node is connected with computer terminal by serial ports.
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