CN201789516U - Digital family interaction system based on wireless family gateway - Google Patents
Digital family interaction system based on wireless family gateway Download PDFInfo
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- CN201789516U CN201789516U CN 201020508781 CN201020508781U CN201789516U CN 201789516 U CN201789516 U CN 201789516U CN 201020508781 CN201020508781 CN 201020508781 CN 201020508781 U CN201020508781 U CN 201020508781U CN 201789516 U CN201789516 U CN 201789516U
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Abstract
The utility model discloses a digital family interaction system based on a wireless family gateway. The digital family interaction system comprises a wide area network unit (1), a wireless family gateway (2) and a family terminal (3), wherein the signal input terminal of the wireless family gateway (2) is connected with the wide area network unit (1). The digital family interaction system is characterized in that the wide area network unit (1) comprises a public switched telephone network, the Internet and a digital television network; the wireless family gateway (2) is simultaneously connected with the public switched telephone network, the Internet and the digital television network respectively through corresponding interfaces and connecting wires; and the wireless family gateway (2) is in wireless connection with the family terminal (3) for data interaction after the signals from different networks are processed. The digital family interaction system of the utility model has the advantages that three networks are unified into a whole, the family network dispenses with the arrangement of wires, the method of connection is flexible, and the expansibility is good.
Description
Technical field
The utility model relates to digital home's mechanics of communication, and especially a kind of digital family equipment carries out interactive system.
Background technology
At present, all flourish, customer group also goes from strength to strength for PSTN, internet, digital tv network, wherein all has common user between three kinds of networks: the user of digital home.According to existing product or network technology, PSTN, internet, digital tv network enter family, all need by independent wiring to be connected to each self-corresponding terminal, for example the domestic consumer will watch Digital Television, at first the CATV cable will enter family, and then the access set-top box, if in the family not chummery many TVs are arranged, then the CATV cable to be arranged into appointed positions respectively and insert set-top box and just can watch; And for example fruit family multiple computers need connect the Internet, needs equally at first that the broadband enters family, carry out the network interface expansion by switch etc. then after, socket many netting twines from the network interface on the switch respectively and could surf the Net to the computer in each room.
PSTN, internet, digital tv network adopt independently, and network connects up, caused the waste of resource on the one hand, increase the home network organizing cost, on the other hand, because TV, phone, PC often need adjusting position as required in the family, take independent wiring must be unfavorable for the later positions adjusting.
Along with the development of various wireless communication techniques and perfect, the establishment of present most of family lan has all selected for use wireless technologys such as WIFI to carry out.With respect to wired networking, wireless networking has and need not connect up, and connection device can move arbitrarily within the family, and connected mode is flexible, characteristics such as favorable expandability.
Summary of the invention
The utility model purpose is on the one hand wireless home gateway to be innovated, realize that PSTN, internet, digital tv network enter the integration of three networks after the family, a kind of digital home interactive system based on this wireless home gateway is disclosed on the other hand, break away from the limitation of wired local, realize interconnecting of various household equipments such as television set, computer.
The utility model purpose is achieved through the following technical solutions:
A kind of digital home interactive system based on wireless home gateway, this system comprises Wide Area Network unit, wireless home gateway, home terminal, wireless home gateway signal input part connecting wan network unit wherein, it is characterized in that: the Wide Area Network unit comprises PSTN, internet, digital tv network; Wireless home gateway is connected respectively with PSTN, internet, digital tv network by corresponding interface and connecting line simultaneously; Wireless home gateway will carry out in the data interaction from being connected with home terminal by wireless mode after the signal processing of heterogeneous networks.
The above wireless home gateway comprises MODEM module, digital TV receiver module, route and Switching Module, master cpu, wireless module; MODEM module, digital TV receiver module, route and Switching Module, wireless module are connected with master cpu respectively, and master cpu carries out system data to be handled and each module work of centralized control.
In order to guarantee the data exchange capability of wireless home gateway, do not influence uploading of digital television signal reception and instruction simultaneously, wireless home gateway comprises first master cpu and second master cpu; Digital TV receiver module comprises tuner, channel decoder, Video Decoder, audio decoder, and it is connected with second master cpu respectively, and the digital signal of Video Decoder, audio decoder output connects first master cpu; MODEM module route and Switching Module, wireless module are connected with first master cpu respectively.
The home terminal of the above is the household electronic equipment with wireless signal transmitting-receiving ability, for example television set, set-top box, PC, phone, mobile phone, other various audio-visual devices and household electrical appliances with network access facility.
Home terminal adopts Wi-Fi, WAPI, the arbitrary mode of WiGig, UWB to carry out wireless data and be connected with wireless home gateway.
The digital home interactive system based on wireless home gateway in sum has following distinguishing feature and effect:
1. by the integration of wireless home gateway, PSTN, internet, digital tv network enter family, realize " unification of three nets " in the family;
2. home network need not wiring, has reduced the cost that home network is built;
3. the various device of interaction systems adopts the wireless networking mode, and connection device can move arbitrarily within the family, and connected mode is flexible, favorable expandability;
4. wireless home gateway adopts dual master control CPU structure, ensures for whole system provides in the exchanges data energy.
Description of drawings
Fig. 1 is the overall structure schematic diagram of native system;
Fig. 2 is the principle of work and power schematic diagram of wireless home gateway.
Embodiment
Below the utility model is further elaborated:
With reference to figure 1, be the overall structure schematic diagram of the utility model based on the digital home interactive system of wireless home gateway.On the whole, system is made up of Wide Area Network unit 1, wireless home gateway 2, home terminal 3 three parts.Wide Area Network unit 1 is connected with wireless home gateway 2, and the various data of handling through wireless home gateway 2 are connected with home terminal 3 by wireless mode.
With reference to figure 2 is the inside composition structure of wireless home gateway 2.The effect of wireless home gateway 2 be responsible for to receive from digital tv network with sound, look, interrogate relevant signal, and realize decoding; Be responsible for the access in outside broadband, realize dialling up on the telephone, route, network exchange function; Be responsible for three road signals with PSTN, internet, digital tv network and be coupled the back by identical interface and adopt identical radio channel output.In whole digital home interactive system, wireless home gateway 2 is that various family datas are concentrated, exchange and the platform shared.As shown in Figure 2, wireless home gateway 2 is made up of MODEM module, digital TV receiver module, route and Switching Module, master cpu, five unit of wireless module.Wherein master cpu comprises first master cpu 21 and second master cpu 22 again; Digital TV receiver module comprises tuner 221, channel decoder 222, DRAM 223, FLASH ROM 224, Video Decoder 225, audio decoder 226 compositions.Tuner 221 connecting channel decoders 222 wherein, DRAM 223, FLASH ROM 224, Video Decoder 225, audio decoder 226 connect second master cpu 22 respectively; The sound through decoding of Video Decoder 225, audio decoder 226 outputs, look digital signal and import first master cpu 21.Tuner 221 is controlled by the I2c bus, finishes high-frequency tuning and exports intermediate-freuqncy signal.Channel demodulator 222 is according to the intermediate-freuqncy signal amplitude, and the intermediate-freuqncy signal amplitude by the AGC signal is regulated tuner 221 outputs is stabilized within certain scope it.The intermediate-freuqncy signal output amplitude is less usually, needs to send into the 8VSB demodulator then through intermediate frequency amplifier; After the 8VSB demodulator is received intermediate-freuqncy signal, it is carried out analog-to-digital conversion, carry out demodulation then step by step.Channel demodulator 222 can directly carry out the A/D sampling to input 44MHz intermediate-freuqncy signal, and the gain of AGC Signal Regulation intermediate-freuqncy signal is provided.Under the normal operating conditions, demodulation chip makes the intermediate-freuqncy signal amplitude within the A/D sample range by irrelevant agc mode earlier; Then carrying out carrier lock and synchronizing signal recovers; After realizing synchronously, the relevant further fine tuning intermediate-freuqncy signal of agc mode amplitude.Carry out successively then the filtering of NTSC co-channel interference, signal equalization, the locking of 9 Phase Tracking and FEC handle (comprise the trellis decoding, deconvolute interweave, the RS decoding and go at random) etc. step, export the TS code stream at last.Second master cpu 22 is realized the various controlled function that operating system is assigned, and finishes TS stream simultaneously and separates multiple connection.On the one hand, second master cpu 22 is resolved the TS stream of sending into from front end, extracts relevant PSI table, and utilizes the PID filter to separate audio frequency and video ES or PES stream, realizes TS stream demultiplexing.On the other hand, second master cpu 22 is coordinated a plurality of processes of first master cpu, 21 management, separates mediation TS demultiplexing etc. as video decode, audio decoder front end, is directly controlling the decoding overall process that Digital Television receives.Video Decoder 225 is finished the real-time video decoding that meets MPEG series compression standard.During video decode, second master cpu 22 is resolved ES stream or the above high level syntax of PES stream frame, extracts dimension of picture, and bit rate quantizes Control Parameter such as matrix, then parameter is write the control register of decoder 225.Audio decoder 226 is finished by the audio decoder of monolithic MPEG compatible-2 and AC-3, does not need external memory storage.In the decode procedure, second master cpu 22 can come the control audio decoder by the 8bit data-interface or by the I2c interface.Different with common set-top box, the sound through decoding of Video Decoder 225, audio decoder 226 outputs, to look the digital signal input be not to become analog signal by D/A converter to input to TV, carries out and go the coupling of its network signal and by being wirelessly transmitted to the wireless receiver of TV end but directly import first master cpu 21.
And for example shown in Figure 2, route and Switching Module comprise Ethernet access module 212, network exchange module 213, routing module 214; MODEM unit 211 and memory 215, interface module 216, radio receiving transmitting module 217, Ethernet access module 212, network exchange module 213, routing module 214 connect first master cpu 21 respectively.Because the circuit structure of a module all has ready-made module or chip, so be not described in detail.
With reference to figure 1, home terminal 3 is meant the household electronic equipment with wireless signal transmitting-receiving ability, as television set, set-top box, PC, phone, mobile phone, other various audio-visual devices and household electrical appliances with network access facility.For the inside PC, mobile phone, PDA etc. of integrating WIFI wireless network card, then directly can carry out wireless telecommunications in wireless home gateway 2.For the equipment that self does not have the wireless data transceiving function, as television set, set-top box, phone etc., can solve by the scheme of external radio R-T unit 5 or 6, principle is to support to adopt the home control network communication protocol that is complementary with wireless home gateway 2.Wireless transmitter 5 is according to the type difference of home terminal 3, and its inside also should have the signal conversion module that realizes that home terminal 3 is required except radio receiving transmitting module.For example, when home terminal 3 is television set, wireless transmitter 5 should have wireless module on the one hand, more should have Embedded CPU on the other hand, support the encoder of high definition output or SD output, to realize that the digital signal that receives from wireless home gateway 2 is converted to the anolog TV signals that TV needs, realize simultaneously the interactive digital command signal from set-top box is sent to wireless home gateway 2 by wireless module.In addition; according to the kind difference of home terminal 3, the digital signal of wireless transmitter 5 or 6 output or the interface of analog signal are also different, because home terminal 3 is many; do not describe one by one, do not breaking away from should belonging in this protection range of the utility model Center for architecture.The concrete composition of wireless home gateway 2 inside can be done increase and decrease, and for example common module such as power management is not also represented in the drawings and illustrated, can the increasing on demand or delete according to general knowledge of this area.
Below utility model application associative operation and operation principle are further described:
Watch Digital Television: the wireless transmitter 5 of television set is realized wireless answering with wireless home gateway 2, and wireless home gateway 2 is verified by the back it access instruction is responded.Second master cpu 22 and the digital TV receiver module work of wireless home gateway 2 receive from the TV signal of digital tv network and form the wireless transmitter 5 that is sent to television set after digitized video, the audio signal by wireless module through tuning, decoding simultaneously; 5 pairs of digital signals that receive of the wireless transmitter of television set are separated, and coding is also by Embedded CPU, support the encoder of high definition output or SD output to change into analog signal and input to TV and watch; When set-top box being carried out various application operatings such as other channel selection as the user, wireless transmitter 5 receives remote signals, simultaneously instruction is sent to wireless home gateway 2 carry out operation such as channel selection or wireless home gateway 2 according to instruction conduct interviews other home terminal 3 file or realize data sync.
Computer televiews: the computer expert crosses wireless network card visit wireless home gateway 2; Wireless home gateway 2 response instructions, received television signal simultaneously, and be sent to computer by wireless module, the computer expert crosses internal player, and this Digital Television digital signal is play;
Interconnect between the various device: various have the audio-visual devices of network access facility and household electrical appliances as television set, set-top box, PC, phone, mobile phone, other various and can data are sent to that wireless home gateway 2 exchanges or share by inner or external wireless transceiver, specifically according to the function difference, need the corresponding software system support, do not do detailed description here.
Claims (6)
1. based on the digital home interactive system of wireless home gateway, this system comprises Wide Area Network unit (1), wireless home gateway (2), home terminal (3), wireless home gateway (2) signal input part connecting wan network unit (1) wherein, it is characterized in that: Wide Area Network unit (1) comprises PSTN, internet, digital tv network; Wireless home gateway (2) is connected respectively with PSTN, internet, digital tv network by corresponding interface and connecting line simultaneously; Wireless home gateway (2) will carry out data interaction from being connected with home terminal (3) by wireless mode after the signal processing of heterogeneous networks.
2. digital home interactive as claimed in claim 1 system, it is characterized in that: described wireless home gateway (2) comprises MODEM module, digital TV receiver module, route and Switching Module, master cpu, wireless module, MODEM module, digital TV receiver module, route and Switching Module, wireless module are connected with master cpu respectively, and master cpu carries out system data to be handled and each module work of centralized control.
3. digital home interactive as claimed in claim 2 system, it is characterized in that: described wireless home gateway (2) comprises first master cpu (21) and second master cpu (22); Digital TV receiver module comprises tuner, channel decoder, Video Decoder, audio decoder, and it is connected with second master cpu (22) respectively, and the digital signal of Video Decoder, audio decoder output connects first master cpu (21); MODEM module route and Switching Module, wireless module are connected with first master cpu (21) respectively.
4. as the described arbitrary described digital home interactive of claim 1 to 3 system, it is characterized in that: described home terminal (3) is for having the household electronic equipment of wireless signal transmitting-receiving ability.
5. as the described arbitrary described digital home interactive of claim 1 to 3 system, it is characterized in that: described home terminal (3) comprises television set, set-top box, PC, phone, mobile phone.
6. arbitrary described digital home interactive as claimed in claim 4 system, it is characterized in that: described home terminal (3) adopts Wi-Fi, WAPI, the arbitrary mode of WiGig, UWB to carry out wireless data and be connected with wireless home gateway (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020508781 CN201789516U (en) | 2010-08-27 | 2010-08-27 | Digital family interaction system based on wireless family gateway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201020508781 CN201789516U (en) | 2010-08-27 | 2010-08-27 | Digital family interaction system based on wireless family gateway |
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| CN201789516U true CN201789516U (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201020508781 Expired - Fee Related CN201789516U (en) | 2010-08-27 | 2010-08-27 | Digital family interaction system based on wireless family gateway |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685605A (en) * | 2012-05-18 | 2012-09-19 | 苏州金纳信息技术有限公司 | Internet television realizing device |
| CN103037249A (en) * | 2011-09-30 | 2013-04-10 | 深圳市同洲电子股份有限公司 | Integrated digital television and data communication method thereof |
| CN103746888A (en) * | 2013-12-30 | 2014-04-23 | 广东瑞德智能科技股份有限公司 | Intelligent home gateway and node networking and network quitting method |
| CN103973521A (en) * | 2013-01-25 | 2014-08-06 | 中国电信股份有限公司 | System and method for supporting multi-medium networking |
-
2010
- 2010-08-27 CN CN 201020508781 patent/CN201789516U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037249A (en) * | 2011-09-30 | 2013-04-10 | 深圳市同洲电子股份有限公司 | Integrated digital television and data communication method thereof |
| CN102685605A (en) * | 2012-05-18 | 2012-09-19 | 苏州金纳信息技术有限公司 | Internet television realizing device |
| CN103973521A (en) * | 2013-01-25 | 2014-08-06 | 中国电信股份有限公司 | System and method for supporting multi-medium networking |
| CN103973521B (en) * | 2013-01-25 | 2017-08-04 | 中国电信股份有限公司 | The system and method for supporting multimedium networking |
| CN103746888A (en) * | 2013-12-30 | 2014-04-23 | 广东瑞德智能科技股份有限公司 | Intelligent home gateway and node networking and network quitting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20150827 |
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| EXPY | Termination of patent right or utility model |