CN107343217A - Plurality of information resources receiving and transmitting control devices and method - Google Patents
Plurality of information resources receiving and transmitting control devices and method Download PDFInfo
- Publication number
- CN107343217A CN107343217A CN201710370620.8A CN201710370620A CN107343217A CN 107343217 A CN107343217 A CN 107343217A CN 201710370620 A CN201710370620 A CN 201710370620A CN 107343217 A CN107343217 A CN 107343217A
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Classifications
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- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4383—Accessing a communication channel
-
- 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
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4341—Demultiplexing of audio and video streams
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- 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
- H04N21/439—Processing of audio elementary streams
Abstract
The invention discloses one kind of multiple information source receiving and transmitting control devices and method, device includes tuner, channel controlling switch, demodulator, processor, network signal transceiver, FM signal receiver, audio-frequency amplifier, voice-grade channel selecting switch, relay, amplifirer and loudspeaker, tuner receives digital catv signal and ground digital television signal, and received signal is changed into intermediate-freuqncy signal；The signal that processor selects to receive by the channel controlling switch, when selection receives digital catv signal, the cable digital TV intermediate-freuqncy signal that tuner exports is connected by channel controlling switch with processor, processor is demodulated and demultiplexed to cable digital TV intermediate-freuqncy signal, is classified as video flowing, audio stream and data flow.The present invention is received to the signal of plurality of information resources, handled, being amplified, priority is set and is judged and output, is flexibly just used.
Description
Technical field
The invention belongs to broadcast world, more particularly to one kind of multiple information source receiving and transmitting control devices and method.
Background technology
Although China's informatization in recent years achieves very big achievement, the popularization of network, TV, mobile phone, pole
The big level of IT application for improving the vast rural areas, but some government informations of two-tier government of county of township, and local one
A little agricultural informations but can not be timely communicated in peasant's hand.
Large scale construction and translation with Cable Digital TV Network, many broadcast programs, convenience-for-people information, life clothes
Business, all it is loaded into digital TV network, many emergent important informations are also passed through Cable Network by departments of government
Network is sent to huge numbers of families.And the DTV STB of current Cable Digital TV Network receiving terminal such as general function,
The radiofrequency signal that will be received, by a series of processing, restore audio-video signal and shown by equipment such as display and sound equipments
Show to everybody.Only everybody opens the equipment such as set top box and external video display loudspeaker stereo at the same time, can just hear political affairs
The emergent important information that mansion is sent.
The content of the invention
In view of this, it is an object of the invention to provide one kind of multiple information source receiving and transmitting control devices and method, when user needs
Certain in multi-information source to be used when information source is transferred to platform all the way, can be by setting program to realize processor to broadcast type
The decoder module of DTV DVB programs, audio coding module, MCVF multichannel voice frequency control module control and export needs all the way
Information source is to platform.
To reach above-mentioned purpose, the invention provides one kind of multiple information source receiving and transmitting control devices, including tuner, channel control
System switch, demodulator, processor, network signal transceiver, FM signal receiver, audio-frequency amplifier, voice-grade channel selection are opened
Pass, relay, amplifirer and loudspeaker, wherein,
The tuner receives digital catv signal and ground digital television signal, and received signal is changed
For intermediate-freuqncy signal；
The signal that the processor selects to receive by the channel controlling switch, selection receive digital catv signal
When, the cable digital TV intermediate-freuqncy signal that tuner exports is connected by channel controlling switch with processor, and processor is to there is line number
Word tv-if signal is demodulated and demultiplexed, and is classified as video flowing, audio stream and data flow；Selection receives ground number
During word TV signal, channel controlling switch exports the terrestrial DTV intermediate-freuqncy signal that tuner exports to the demodulator,
The demodulator is demodulated to it and exports TS and flow and the TS streams of input are demultiplexed again, will be believed to processor, processor
Number it is divided into video flowing, audio stream and data flow；
The network signal transceiver receives network signal and is transferred to processor；The FM signal receiver receives nothing
Line FM signal, the audio-frequency amplifier receive local sound source signal, FM signal receiver and audio-frequency amplifier all with it is described
Voice-grade channel selecting switch is connected, and voice-grade channel selecting switch is also connected with processor, and voice-grade channel selecting switch will have line number
Select to believe all the way in word TV signal, ground digital television signal, network signal, wireless frequency modulation signal and local sound source signal
Number export to the amplifirer, exported by amplifirer and required audio signal is broadcast to the loudspeaker, the loudspeaker
Put；The input connection processor of the relay, output connection amplifirer, processor to relay output control signal, by after
The switch of electrical equipment control amplifirer.
Preferably, in addition to local microphone, it is connected with audio-frequency amplifier, the emergent simulated audio signal received is passed
It is defeated by audio-frequency amplifier and carries out signal amplification.
Preferably, in addition to audio A/D converters, input is connected with the voice-grade channel selecting switch, export with it is described
Processor connects, the signal progress audio coding for selecting to export to voice-grade channel selecting switch, the audio signal output after coding
To processor.
Preferably, in addition to remote platform, it is connected with the network signal transceiver, network signal transceiver is by the sound
Frequency A/D converters export the audio signal transmission to processor to remote platform.
Preferably, the processor includes HI3716 chips.
Based on above-mentioned purpose, present invention also offers one kind of multiple information source receiving and sending control methods, comprise the following steps：
Tuner receives digital catv signal and ground digital television signal, during received signal is changed into
Frequency signal, the signal that the selection of processor control channel controlling switch receives, network signal transceiver receive network signal and transmitted
To processor；
If selection reception digital catv signal, in the cable digital TV that channel controlling switch exports tuner
Frequency signal is transferred to processor, and processor is demodulated and demultiplexed to cable digital TV intermediate-freuqncy signal, is classified as video
Stream, audio stream and data flow；
If selection reception ground digital television signal, in the terrestrial DTV that channel controlling switch exports tuner
Frequency signal output gives the demodulator, and demodulator, which is demodulated to it and exports TS, to flow to processor, and processor is again to input
TS streams are demultiplexed, and signal is divided into video flowing, audio stream and data flow；
FM signal receiver receives wireless frequency modulation signal, and audio-frequency amplifier receives local sound source signal, all inputs audio
Channel selector switch, the output of processor also connect voice-grade channel selecting switch；
Voice-grade channel selecting switch is by digital catv signal, ground digital television signal, network signal, wireless frequency modulation
Selected in signal and local sound source signal all the way signal output to amplifirer；
Processor closes amplifirer by the switch of Control amplifirer when being not required to playing audio signal；
The audio signal for needing to play is exported and played out to loudspeaker by amplifirer.
Preferably, the audio-frequency amplifier receives local sound source signal, is transmitted by local microphone.
Preferably, voice-grade channel selecting switch selection is while signal output is to amplifirer all the way, also by this all the way
Signal output is exported to processor to audio A/D converters after carrying out audio coding.
Preferably, the audio coding is exported to after processor, and processor is transferred to remotely by network signal transceiver
Platform.
Preferably, the processor includes HI3716 chips.
The beneficial effects of the present invention are：
By setting tuner, channel controlling switch and demodulator, to digital catv signal and terrestrial DTV
Signal carries out conversion and branch transmission；Set network signal transceiver to receive network signal, send out signal when needing
Go out to remote platform；FM signal receiver is set to receive wireless frequency modulation signal；Audio-frequency amplifier is set to this rock noise
Source signal is amplified；Voice-grade channel selecting switch is set, digital catv signal, terrestrial DTV letter can be selected
Number, in network signal, wireless frequency modulation signal and local sound source signal all the way, played out by amplifirer to loudspeaker；If
The audio signal that audio A/D converters export needs is put, is exported through processor, network signal transceiver to remote platform.This
Invention can both receive broadcast type DTV DVB programs, can also receive and dispatch control MCVF multichannel voice frequency input and output.
Brief description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carried out
Explanation：
Fig. 1 is the structural representation of the plurality of information resources receiving and transmitting control devices of apparatus of the present invention embodiment 1；
Fig. 2 is the structural representation of the plurality of information resources receiving and transmitting control devices of apparatus of the present invention embodiment 2；
Fig. 3 is the step flow chart of the plurality of information resources receiving and sending control method of the inventive method embodiment.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Device embodiment 1
Referring to Fig. 1, the structural representation of the plurality of information resources receiving and transmitting control devices of apparatus of the present invention embodiment 1 is shown, is wrapped
Include tuner 1, channel controlling switch 2, demodulator 3, processor 4, network signal transceiver 5, FM signal receiver 6, audio
Amplifier 7, voice-grade channel selecting switch 8, relay 10, amplifirer 11 and loudspeaker 12, wherein,
Tuner 1 receives digital catv signal and ground digital television signal, and received signal is changed into
Intermediate-freuqncy signal；
The signal that processor 4 selects to receive by channel controlling switch 2, when selection receives digital catv signal, letter
The cable digital TV intermediate-freuqncy signal that tuner 1 exports is connected by road controlling switch 2 with processor 4, and processor 4 is to there is line number
Word tv-if signal is demodulated and demultiplexed, and is classified as video flowing, audio stream and data flow；Selection receives ground number
During word TV signal, channel controlling switch 2 exports the terrestrial DTV intermediate-freuqncy signal that tuner 1 exports to demodulator 3,
Demodulator 3 is demodulated to it and exports TS and flow and the TS streams of input are demultiplexed again, will be believed to processor 4, processor 4
Number it is divided into video flowing, audio stream and data flow；
Network signal transceiver 5 receives network signal and is transferred to processor 4；FM signal receiver 6 receives wireless tune
Frequency signal, audio-frequency amplifier 7 receive local sound source signal, FM signal receiver 6 and audio-frequency amplifier 7 all with voice-grade channel
Selecting switch 8 is connected, and voice-grade channel selecting switch 8 is also connected with processor 4, and voice-grade channel selecting switch 8 is electric by cabled digital
Depending on selected in signal, ground digital television signal, network signal, wireless frequency modulation signal and local sound source signal all the way signal it is defeated
Go out to amplifirer 11, exported by amplifirer 11 and required audio signal is played out to loudspeaker 12, loudspeaker 12；Relay
10 input connection processor 4, output connection amplifirer 11, processor 4 is to the output control signal of relay 10, by relay
The switch of 10 control amplifirers 11.
By above-mentioned setting, device can receive digital catv signal, ground digital television signal, network signal,
Wireless frequency modulation signal and local sound source signal.It is to pass through when receiving digital catv signal and ground digital television signal
Tuner 1, channel controlling switch 2 and demodulator 3, channel controlling switch 2 are cable digital TV letters to input processor 4
Number or ground digital television signal selected, when select digital catv signal, channel controlling switch 2 will tuning
The intermediate-freuqncy signal of digital catv signal that device 1 exports is connected with the QAM mouths of processor 4, and processor 4 is to cabled digital electricity
It is demodulated and demultiplexes depending on intermediate-freuqncy signal, be classified as video flowing, audio stream and data flow, then exports to voice-grade channel
Selecting switch 8 for audio stream；Channel controlling switch 2 is when selecting ground digital television signal, ground that tuner 1 is exported
The intermediate-freuqncy signal of face digital television signal is exported to demodulator 3, and output TS is flowed to processor 4, processor 4 after demodulator 3 demodulates
Demultiplexed again, signal is divided into video flowing, audio stream and data flow, then exported and be to voice-grade channel selecting switch 8
Audio stream；When receiving network signal, processor 4 is transferred to by network signal transceiver 5, processor 4 exports to audio again
Channel selector switch 8；When receiving wireless frequency modulation signal, voice-grade channel selecting switch is transferred to by FM signal receiver 6
8；When receiving local sound source signal, voice-grade channel selecting switch 8 is transferred to by audio-frequency amplifier 7.Voice-grade channel selection is opened
8 priority according to each audio are closed, i.e., after urgency level is selected, the sound source signal of highest priority is exported to power amplifier
Device 11, played finally by loudspeaker 12.
Device embodiment 2
Referring to Fig. 2, the structural representation of the plurality of information resources receiving and transmitting control devices of apparatus of the present invention embodiment 2 is shown,
Also include local microphone 14, be connected with audio-frequency amplifier 7, the emergent simulated audio signal received is transferred to
Audio-frequency amplifier 7 carries out signal amplification.
Also include audio A/D converters 9, input is connected with voice-grade channel selecting switch 8, and output is connected with processor 4, right
The signal of the selection output of voice-grade channel selecting switch 8 carries out audio coding, and the audio signal after coding is exported to processor 4, warp
Audio A/D converters 9 export the audio signal for highest priority to processor 4.
Also include remote platform 13, be connected with network signal transceiver 5, network signal transceiver 5 is by audio A/D converters
9 export the audio signal transmission to processor 4 to remote platform 13.
In specific embodiment, processor 4 includes the HI3716 chips of HiSilicon of Huawei, and tuner 1 includes grace intelligence Pu half
The TDA18250B chips of conductor company, network signal transceiver 5 include the LAN8720 chips of SMSC companies, and FM signal connects
Receiving device 6 includes the CVF-R02 chips that Shenzhen China regards Microtronic A/S, and voice-grade channel selecting switch 8 includes SGMC company
SGM48751 chips, audio A/D converters 9 include the TLV320AIC3101 chips of TI companies.
Corresponding with above-mentioned plurality of information resources receiving and transmitting control devices, present invention also offers the transmitting-receiving of one kind of multiple information sources to control
Method.
Embodiment of the method 1,
Referring to Fig. 3, the step flow chart of the plurality of information resources receiving and sending control method of the inventive method embodiment is shown, including
Following steps：
S101, tuner receive digital catv signal and ground digital television signal, and received signal is turned
It is changed into intermediate-freuqncy signal, the signal that the selection of processor control channel controlling switch receives, network signal transceiver receives network signal
And it is transferred to processor；
S102, if selection receives digital catv signal, the cabled digital that channel controlling switch exports tuner
Tv-if signal is transferred to processor, and processor is demodulated and demultiplexed to cable digital TV intermediate-freuqncy signal, by its point
For video flowing, audio stream and data flow；
S103, if selection receives ground digital television signal, the ground digital that channel controlling switch exports tuner
Tv-if signal is exported to the demodulator, demodulator it is demodulated and export TS flow it is right again to processor, processor
The TS streams of input are demultiplexed, and signal is divided into video flowing, audio stream and data flow；
S104, FM signal receiver receive wireless frequency modulation signal, and audio-frequency amplifier receives local sound source signal, all inputted
Voice-grade channel selecting switch, the output of processor also connect voice-grade channel selecting switch；
S105, voice-grade channel selecting switch is by digital catv signal, ground digital television signal, network signal, nothing
Selected in line FM signal and local sound source signal all the way signal output to amplifirer；
S106, processor close amplifirer by the switch of Control amplifirer when being not required to playing audio signal；
The audio signal for needing to play is exported and played out to loudspeaker by S107, amplifirer.
Through above-mentioned steps, the transmitting-receiving control of plurality of information resources can be carried out, broadcast type digital television signal can be received, can also be connect
Inputted, the audio signal for selecting to need finally by voice-grade channel selecting switch, raised one's voice through amplifirer by outside MCVF multichannel voice frequency
Device plays out.
Embodiment of the method 2,
Local sound source signal is received in S104 middle pitches audio amplifier, is transmitted by local microphone；In S105 middle pitches
The selection of frequency channel selector switch while signal output is to amplifirer all the way, also by this, to audio A/D change all the way by signal output
Device, exported after carrying out audio coding to processor, preprocessor export and give network signal transceiver, be transferred to remote platform.
Method specific embodiment will not be described here referring to said apparatus embodiment.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. one kind of multiple information source receiving and transmitting control devices, it is characterised in that including tuner, channel controlling switch, demodulator, processing
Device, network signal transceiver, FM signal receiver, audio-frequency amplifier, voice-grade channel selecting switch, relay, amplifirer and
Loudspeaker, wherein,
The tuner receives digital catv signal and ground digital television signal, during received signal is changed into
Frequency signal；
The signal that the processor selects to receive by the channel controlling switch, when selection receives digital catv signal,
The cable digital TV intermediate-freuqncy signal that tuner exports is connected by channel controlling switch with processor, and processor is to cabled digital electricity
It is demodulated and demultiplexes depending on intermediate-freuqncy signal, is classified as video flowing, audio stream and data flow；Selection receives terrestrial DTV
During signal, channel controlling switch exports the terrestrial DTV intermediate-freuqncy signal that tuner exports to the demodulator, the solution
Adjust device to be demodulated it and export TS and flow again to demultiplex the TS streams of input to processor, processor, signal is divided into
Video flowing, audio stream and data flow；
The network signal transceiver receives network signal and is transferred to processor；The FM signal receiver receives wireless adjust
Frequency signal, the audio-frequency amplifier receive local sound source signal, FM signal receiver and audio-frequency amplifier all with the audio
Channel selector switch is connected, and voice-grade channel selecting switch is also connected with processor, and voice-grade channel selecting switch is electric by cabled digital
Depending on selecting signal output all the way in signal, ground digital television signal, network signal, wireless frequency modulation signal and local sound source signal
To the amplifirer, exported by amplifirer and required audio signal is played out to the loudspeaker, the loudspeaker；It is described after
The input connection processor of electrical equipment, output connection amplifirer, processor is to relay output control signal, by Control work(
Put the switch of device.
2. plurality of information resources receiving and transmitting control devices according to claim 1, it is characterised in that also including local microphone, with
Audio-frequency amplifier connects, and the emergent simulated audio signal received is transferred into audio-frequency amplifier carries out signal amplification.
3. plurality of information resources receiving and transmitting control devices according to claim 1, it is characterised in that also including audio A/D converters,
Input is connected with the voice-grade channel selecting switch, and output is connected with the processor, voice-grade channel selecting switch is selected defeated
The signal that goes out carries out audio coding, and the audio signal after coding is exported to processor.
4. plurality of information resources receiving and transmitting control devices according to claim 3, it is characterised in that also including remote platform, with institute
The connection of network signal transceiver is stated, network signal transceiver exports the audio A/D converters the audio signal to processor
It is transferred to remote platform.
5. plurality of information resources receiving and transmitting control devices according to claim 1, it is characterised in that the processor includes HI3716
Chip.
6. one kind of multiple information source receiving and sending control methods, it is characterised in that comprise the following steps：
Tuner receives digital catv signal and ground digital television signal, and received signal is changed into intermediate frequency letter
Number, the signal that the selection of processor control channel controlling switch receives, network signal transceiver receives network signal and is transferred to place
Manage device；
If selection receives digital catv signal, the cable digital TV intermediate frequency that channel controlling switch exports tuner is believed
Number processor is transferred to, processor is demodulated and demultiplexed to cable digital TV intermediate-freuqncy signal, is classified as video flowing, sound
Frequency stream and data flow；
If selection receives ground digital television signal, the terrestrial DTV intermediate frequency that channel controlling switch exports tuner is believed
Number export to the demodulator, demodulator is demodulated to it and exports TS and flows to flow to the TS of input again to processor, processor
Demultiplexed, signal is divided into video flowing, audio stream and data flow；
FM signal receiver receives wireless frequency modulation signal, and audio-frequency amplifier receives local sound source signal, all inputs voice-grade channel
Selecting switch, the output of processor also connect voice-grade channel selecting switch；
Voice-grade channel selecting switch is by digital catv signal, ground digital television signal, network signal, wireless frequency modulation signal
With selected in local sound source signal all the way signal output to amplifirer；
Processor closes amplifirer by the switch of Control amplifirer when being not required to playing audio signal；
The audio signal for needing to play is exported and played out to loudspeaker by amplifirer.
7. plurality of information resources receiving and sending control method according to claim 6, it is characterised in that the audio-frequency amplifier receives this
Ground sound source signal, transmitted by local microphone.
8. plurality of information resources receiving and sending control method according to claim 6, it is characterised in that the voice-grade channel selecting switch
While signal output is to amplifirer all the way, also by this, signal output to audio A/D converters, carries out audio coding all the way for selection
After export to processor.
9. plurality of information resources receiving and sending control method according to claim 8, it is characterised in that the audio coding is exported to place
After managing device, processor is transferred to remote platform by network signal transceiver.
10. plurality of information resources receiving and sending control method according to claim 6, it is characterised in that the processor includes
HI3716 chips.
Priority Applications (1)
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| CN201710370620.8A CN107343217A (en) | 2017-05-23 | 2017-05-23 | Plurality of information resources receiving and transmitting control devices and method |
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| CN201710370620.8A CN107343217A (en) | 2017-05-23 | 2017-05-23 | Plurality of information resources receiving and transmitting control devices and method |
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Application publication date: 20171110 |