CN106303633A - A kind of miniaturization DTV VLC receives terminal system - Google Patents
A kind of miniaturization DTV VLC receives terminal system Download PDFInfo
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- CN106303633A CN106303633A CN201610819939.XA CN201610819939A CN106303633A CN 106303633 A CN106303633 A CN 106303633A CN 201610819939 A CN201610819939 A CN 201610819939A CN 106303633 A CN106303633 A CN 106303633A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 230000003321 amplification Effects 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 230000009467 reduction Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000009466 transformation Effects 0.000 claims description 6
- 230000008054 signal transmission Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Telephone Function (AREA)
Abstract
The present invention provides a kind of miniaturization DTV VLC to receive terminal system, receives unit, multimedia decoding unit and master control control unit including VLC；VLC receives unit and comprises visible light receiving unit, change-over circuit, signal processing unit and D/A conversion unit；Light receiving unit will receive visible light signal and be converted to the signal of telecommunication, and the signal of telecommunication enters multimedia decoding unit through serial ports；Master control control unit controls multimedia decoding Unit selection corresponding program frequency range according to instruction and carries out the decoding demodulating process of data, eventually through coffret, digital television signal is sent to user terminal and receives；Front-end amplifier, wave filter, analog-digital converter are set between visible light receiving unit and multimedia decoding unit, the signal of telecommunication converted by light receiving unit enters multimedia decoding unit by forming the Transistor-Transistor Logic level of standard after front-end amplifier amplification, filtering and noise reduction and analog digital conversion, the present invention can reach good receiving efficiency, and portable, small and exquisite, easily operate, be suitable for being widely popularized use.
Description
[technical field]
The present invention relates to receiving terminal apparatus technical field in visible ray communication, particularly relate to one and have efficient, small-sized
Change, the miniaturization DTV-VLC of low hardware complexity receives terminal system.
[background technology]
Existing all multi-radio access technologies, under the requirement background that ground digital television signal accesses, manifest and ask in a large number
Topic.Tradition WiFi technology is a kind of common wireless network transmissions and access technology, has been widely used for each place.But its
Owing to frequency spectrum is nervous, cause message capacity limited, in the region that some flows are big, it is impossible to meet people and watch high definition simultaneously and regard
The demand of frequency.Meanwhile, in some places having electromagnetic shielding or electromagnetic interference, WiFi cannot be suitable for.Owing to signal is easy to wear
Wall, is easily ravesdropping, and confidentiality is poor, is not suitable for the application scenarios of strong security.Leakage cable technology may be directly applied to existing
Communication standard, such as 3G, WiFi etc., it is adaptable in the large-scale environment such as train crossing.But it needs again to lay coaxial cable, peace
Dressing up high, installation environment is complicated, and confidentiality is poor, is not suitable for small-sized indoor environment.
In traditional visible light communication framework, each LED all uses single information feed-in unit, even if using PLC skill
Art, it is also desirable to use PLC demodulation module that the information solution transmitted is transferred to base band on light fixture, then by baseband digital signal again
Modulate the transmission of visible light carrying out information in LED, " demodulate and the forward " pattern being similar in communication system.This needs
Narrow and small light fixture space is implanted PLC demodulation module (including required DC power supplier), existing light fixture certainly will be carried out
Large-scale redevelopment, complexity is higher and very difficult practicality, for the uniformity illuminated, certainly exists the overlapping region of illumination, this kind of
The more stern challenge that system is faced is: if the information sent between adjacent lamps is different, certainly will there is the light outside nature light
Interference.
Owing to visible light communication is very sensitive for blocking, the mobile of user terminal will inevitably occur because health hides
The communication disruption that the factors such as gear cause, and need to switch between each small cup LED continually in moving process.To end
The real-time etc. of end equipment, the network equipment, resource management and scheduling also has high requirement, it is difficult to practical.
Based on the problems referred to above, how could in wireless communication technique, realize mobile access, degree of depth covering, broadband connections etc.
Function.Do not use laying backbone network, it is not necessary to set up AP equipment, significantly reduce cost and mounting arrangements difficulty, so meet special
People's demand to acquisition of information under environment, designs and has efficient, the reception terminal of miniaturization, low hardware complexity, ability
The technical staff in territory has carried out substantial amounts of research and development and experiment, also achieves prominent achievement.
[summary of the invention]
For overcoming the problem existing for prior art, the present invention provides one to have efficiently, miniaturization, low hardware complexity
Miniaturization DTV-VLC receive terminal system.
The present invention solves the scheme of technical problem and is to provide a kind of miniaturization DTV-VLC reception terminal system, connects including VLC
Receive unit, multimedia decoding unit and master control control unit；Described VLC receives unit and comprises visible light receiving unit, conversion
Circuit, signal processing unit, D/A conversion unit and chip periphery circuit；Described light receiving unit will receive visible ray letter
Number being converted to the signal of telecommunication, the signal of telecommunication enters multimedia decoding unit through serial ports；Master control control unit is according to the user received
Instruction, controls multimedia decoding Unit selection corresponding program frequency range and carries out the decoding demodulating process of data, eventually through transmission
Digital television signal is sent to user terminal and receives by interface；
Seen from described, front-end amplifier, wave filter, analog digital conversion are set between light receiving unit and multimedia decoding unit
Device, light receiving unit the signal of telecommunication converted is by forming mark after front-end amplifier amplification, filtering and noise reduction and analog digital conversion
Accurate Transistor-Transistor Logic level enters multimedia decoding unit；
Described master control control unit controls to perform action command and complete signal to receive and transformation process.
Preferably, described miniaturization DTV-VLC reception terminal system uses 2-30MHz bandwidth to carry out signal transmission, from family
Front yard multimedia gateway transmits to PLC coupler, then by VLC technology transfer to receiving terminal, all uses based on DTMB standard
The straight discharge signal of TDS-OFDM；After terminal receives optical signal, directly to the high definition DTV signal meeting DTMB standard received
It is demodulated decoding.
Preferably, described reception terminal includes fixed terminal configuration and mobile terminal configuration；Fixed terminal configuration be for
TV, the fixed terminal of computer equipment, use Embedded VLC to receive unit, multimedia decoding unit and master control control unit,
All functional modules are incorporated in unified receiver, and are connected with TV, computer terminal, it is achieved data are transmitted；
Described mobile terminal configuration is for mobile phone, the mobile terminal of panel computer equipment, uses OTG external to receive single
Unit, comprises VLC and receives unit, multimedia decoding unit, master control control unit and USB transmission interface.
Preferably, described user side receives the data receiver pattern of terminal is VLC broadcast signal reception pattern.
Preferably, described PLC coupler includes the electric lines of force for being coupled to be transmitted on electric lines of force by analogue signal
Signal coupling driver element.
Preferably, described PLC coupler includes that medium-frequency transformation unit, D/A conversion unit and power line signal coupling are driven
Moving cell；Described intermediate frequency becomes unit and completes to move baseband signal the 2-30MHz frequency band of applicable power line communication；Digital-to-analogue conversion
Unit completes the digital signal conversion to analogue signal；Power line signal coupling driver element completes analogue signal is coupled to electricity
It is transmitted in the line of force.
Preferably, described user side receives terminal and can carry out LED and directly put the TDS-OFDM based on DTMB standard of broadcast
The reception of signal, demodulating and decoding.
Preferably, described user receives terminal is mobile phone, panel computer, digital TV in high resolution and desk computer.
Compared with prior art, one miniaturization DTV-VLC of the present invention receives terminal system by described miniaturization
DTV-VLC receives and arranges VLC reception unit, multimedia decoding unit and master control control unit in terminal system 1, according to reality
The form of product adjust the structure of each unit, to adapt to the demand of different product, light receiving unit will receive visible ray
Signal is converted to the signal of telecommunication, and the signal of telecommunication enters multimedia decoding unit through serial ports；Master control control unit is according to the use received
Family instructs, and controls multimedia decoding Unit selection corresponding program frequency range and carries out the decoding demodulating process of data, eventually through biography
Digital television signal is sent to user terminal and receives by defeated interface, and the present invention can reach good receiving efficiency, and portable, little
Ingeniously, easily operate, be suitable for being widely popularized use.
[accompanying drawing explanation]
Fig. 1 is the morphosis schematic diagram that the present invention a kind of miniaturization DTV-VLC receives terminal system.
[detailed description of the invention]
For making the purpose of the present invention, technical scheme and advantage are clearer, below in conjunction with drawings and Examples, to this
Invention is further elaborated.Should be appreciated that specific embodiment described herein is used only for explaining the present invention, not
For limiting this invention.
Refer to Fig. 1, one miniaturization DTV-VLC of the present invention reception terminal system 1 and include that VLC receives unit, multimedia
Decoding unit and master control control unit；Described VLC receives unit and comprises visible light receiving unit, change-over circuit, signal processing
Unit, D/A conversion unit and chip periphery circuit；Described light receiving unit will receive visible light signal and be converted to telecommunications
Number, the signal of telecommunication enters multimedia decoding unit through serial ports；Master control control unit, according to the user instruction received, controls many matchmakers
Body decoding unit selects corresponding program frequency range to carry out the decoding demodulating process of data, eventually through coffret by DTV
Signal is sent to user terminal and receives；
Seen from described, front-end amplifier, wave filter, analog digital conversion are set between light receiving unit and multimedia decoding unit
Device, light receiving unit the signal of telecommunication converted is by forming mark after front-end amplifier amplification, filtering and noise reduction and analog digital conversion
Accurate Transistor-Transistor Logic level enters multimedia decoding unit；
Described master control control unit controls to perform action command and complete signal to receive and transformation process.
Unit, multimedia decoding unit is received by arranging VLC in receiving terminal system 1 at described miniaturization DTV-VLC
And master control control unit, the structure of each unit is adjusted according to the form of actual product, to adapt to the demand of different product,
Light receiving unit will receive visible light signal and be converted to the signal of telecommunication, and the signal of telecommunication enters multimedia decoding unit through serial ports；Main
Control control unit, according to the user instruction received, controls multimedia decoding Unit selection corresponding program frequency range and carries out data
Decoding demodulating process, is sent to user terminal eventually through coffret by digital television signal and receives, and the present invention can reach
Well receiving efficiency, and portable, small and exquisite, easily operate, be suitable for being widely popularized use.
Preferably, described miniaturization DTV-VLC reception terminal system uses 2-30MHz bandwidth to carry out signal transmission, from family
Front yard multimedia gateway transmits to PLC coupler, then by VLC technology transfer to receiving terminal, all uses based on DTMB standard
The straight discharge signal of TDS-OFDM；After terminal receives optical signal, directly to the high definition DTV signal meeting DTMB standard received
It is demodulated decoding.
Preferably, described reception terminal includes fixed terminal configuration and mobile terminal configuration；Fixed terminal configuration be for
TV, the fixed terminal of computer equipment, use Embedded VLC to receive unit, multimedia decoding unit and master control control unit,
All functional modules are incorporated in unified receiver, and are connected with TV, computer terminal, it is achieved data are transmitted；
Described mobile terminal configuration is for mobile phone, the mobile terminal of panel computer equipment, uses OTG external to receive single
Unit, comprises VLC and receives unit, multimedia decoding unit, master control control unit and USB transmission interface.
Preferably, described user side receives the data receiver pattern of terminal is VLC broadcast signal reception pattern.In design
Require portable, small and exquisite, easily operate, receive terminal without more data calculate and hardware operation, therefore MCU in type selecting relative to
The network equipment is relatively simple, and its peripheral configuration circuit is the simplest.
Preferably, described PLC coupler includes the electric lines of force for being coupled to be transmitted on electric lines of force by analogue signal
Signal coupling driver element.
Preferably, described PLC coupler includes that medium-frequency transformation unit, D/A conversion unit and power line signal coupling are driven
Moving cell；Described intermediate frequency becomes unit and completes to move baseband signal the 2-30MHz frequency band of applicable power line communication；Digital-to-analogue conversion
Unit completes the digital signal conversion to analogue signal；Power line signal coupling driver element completes analogue signal is coupled to electricity
It is transmitted in the line of force.
Preferably, described user side receives terminal and can carry out LED and directly put the TDS-OFDM based on DTMB standard of broadcast
The reception of signal, demodulating and decoding.
Preferably, described user receives terminal is mobile phone, panel computer, digital TV in high resolution and desk computer.
Compared with prior art, one miniaturization DTV-VLC of the present invention receives terminal system 1 by described miniaturization
DTV-VLC receives and arranges VLC reception unit, multimedia decoding unit and master control control unit in terminal system 1, according to reality
The form of product adjust the structure of each unit, to adapt to the demand of different product, light receiving unit will receive visible ray
Signal is converted to the signal of telecommunication, and the signal of telecommunication enters multimedia decoding unit through serial ports；Master control control unit is according to the use received
Family instructs, and controls multimedia decoding Unit selection corresponding program frequency range and carries out the decoding demodulating process of data, eventually through biography
Digital television signal is sent to user terminal and receives by defeated interface, and the present invention can reach good receiving efficiency, and portable, little
Ingeniously, easily operate, be suitable for being widely popularized use.
Invention described above embodiment, is not intended that limiting the scope of the present invention.Any in the present invention
Spirit and principle within amendment, equivalent and the improvement etc. made, should be included in the claim protection model of the present invention
Within enclosing.
Claims (8)
1. a miniaturization DTV-VLC receives terminal system, it is characterised in that: include that VLC receives unit, multimedia decoding unit
And master control control unit；Described VLC receives unit and comprises visible light receiving unit, change-over circuit, signal processing unit, digital-to-analogue
Converting unit and chip periphery circuit；Described light receiving unit will receive visible light signal and be converted to the signal of telecommunication, the signal of telecommunication
Multimedia decoding unit is entered through serial ports；Master control control unit, according to the user instruction received, controls multimedia decoding list
Unit selects corresponding program frequency range to carry out the decoding demodulating process of data, eventually through coffret by digital television signal transmission
Receive terminal to user to receive；
Seen from described, front-end amplifier, wave filter, analog-digital converter are set between light receiving unit and multimedia decoding unit, by
The signal of telecommunication that light receiving unit converts is by forming standard after front-end amplifier amplification, filtering and noise reduction and analog digital conversion
Transistor-Transistor Logic level enters multimedia decoding unit；
Described master control control unit controls to perform action command and complete signal to receive and transformation process.
2. a kind of miniaturization DTV-VLC as claimed in claim 1 receives terminal system, it is characterised in that: described miniaturization
DTV-VLC receives terminal system and uses 2-30MHz bandwidth to carry out signal transmission, passes from family multi-media gateway to PLC coupler
Defeated, then by VLC technology transfer to receiving terminal, all use the straight discharge signal of TDS-OFDM based on DTMB standard；Connect in terminal
After receiving optical signal, directly the high definition DTV signal meeting DTMB standard received is demodulated decoding.
3. a kind of miniaturization DTV-VLC as claimed in claim 1 or 2 receives terminal system, it is characterised in that: described reception is eventually
End includes fixed terminal configuration and mobile terminal configuration；Fixed terminal configuration is for TV, the fixed terminal of computer equipment, adopts
Receive unit, multimedia decoding unit and master control control unit with Embedded VLC, all functional modules are incorporated into unified
In receiver, and it is connected with TV, computer terminal, it is achieved data are transmitted；
Described mobile terminal configuration is for mobile phone, the mobile terminal of panel computer equipment, uses OTG external to receive unit,
Comprise VLC and receive unit, multimedia decoding unit, master control control unit and USB transmission interface.
4. a kind of miniaturization DTV-VLC as claimed in claim 3 receives terminal system, it is characterised in that: described user terminates
The data receiver pattern receiving terminal is VLC broadcast signal reception pattern.
5. a kind of miniaturization DTV-VLC as claimed in claim 2 receives terminal system, it is characterised in that: described PLC coupler
Driver element is coupled including the power line signal for being coupled to be transmitted on electric lines of force by analogue signal.
6. a kind of miniaturization DTV-VLC as described in claim 2 or 5 receives terminal system, it is characterised in that: described PLC coupling
Clutch includes medium-frequency transformation unit, D/A conversion unit and power line signal coupling driver element；It is complete that described intermediate frequency becomes unit
Become the 2-30MHz frequency band that baseband signal is moved applicable power line communication；D/A conversion unit completes digital signal to simulation
The conversion of signal；Power line signal coupling driver element completes to be coupled to analogue signal on electric lines of force be transmitted.
7. a kind of miniaturization DTV-VLC as claimed in claim 4 receives terminal system, it is characterised in that: described user terminates
Receipts terminal can carry out LED and directly put the reception of TDS-OFDM signal based on DTMB standard of broadcast, demodulating and decoding.
8. a kind of miniaturization DTV-VLC as claimed in claim 1 receives terminal system, it is characterised in that: described user receives
Terminal is mobile phone, panel computer, digital TV in high resolution and desk computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819939.XA CN106303633A (en) | 2016-09-12 | 2016-09-12 | A kind of miniaturization DTV VLC receives terminal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610819939.XA CN106303633A (en) | 2016-09-12 | 2016-09-12 | A kind of miniaturization DTV VLC receives terminal system |
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| Publication Number | Publication Date |
|---|---|
| CN106303633A true CN106303633A (en) | 2017-01-04 |
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|---|---|---|---|
| CN201610819939.XA Pending CN106303633A (en) | 2016-09-12 | 2016-09-12 | A kind of miniaturization DTV VLC receives terminal system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100028010A1 (en) * | 2008-04-11 | 2010-02-04 | The Directv Group, Inc. | Method and system for updating a control device database via flashing light |
| CN102595222A (en) * | 2012-03-09 | 2012-07-18 | 郭丰亮 | Digital television set top box based on LED visible light communication |
| CN103220041A (en) * | 2013-04-22 | 2013-07-24 | 南京邮电大学 | Wireless router access system based on visible light |
| CN103986518A (en) * | 2014-06-04 | 2014-08-13 | 中国科学院半导体研究所 | Single-chip microcomputer voice frequency storing and broadcasting system and single-chip microcomputer voice frequency storing and broadcasting method based on visible light communication |
| CN104270174A (en) * | 2014-10-17 | 2015-01-07 | 清华大学 | Communication method and system with power line and visible light integration |
-
2016
- 2016-09-12 CN CN201610819939.XA patent/CN106303633A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100028010A1 (en) * | 2008-04-11 | 2010-02-04 | The Directv Group, Inc. | Method and system for updating a control device database via flashing light |
| CN102595222A (en) * | 2012-03-09 | 2012-07-18 | 郭丰亮 | Digital television set top box based on LED visible light communication |
| CN103220041A (en) * | 2013-04-22 | 2013-07-24 | 南京邮电大学 | Wireless router access system based on visible light |
| CN103986518A (en) * | 2014-06-04 | 2014-08-13 | 中国科学院半导体研究所 | Single-chip microcomputer voice frequency storing and broadcasting system and single-chip microcomputer voice frequency storing and broadcasting method based on visible light communication |
| CN104270174A (en) * | 2014-10-17 | 2015-01-07 | 清华大学 | Communication method and system with power line and visible light integration |
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Application publication date: 20170104 |