CN202551244U - Integral type front-end system based on digital television - Google Patents
Integral type front-end system based on digital television Download PDFInfo
- Publication number
- CN202551244U CN202551244U CN2012201703570U CN201220170357U CN202551244U CN 202551244 U CN202551244 U CN 202551244U CN 2012201703570 U CN2012201703570 U CN 2012201703570U CN 201220170357 U CN201220170357 U CN 201220170357U CN 202551244 U CN202551244 U CN 202551244U
- Authority
- CN
- China
- Prior art keywords
- card
- chip
- end system
- function
- integral type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The utility model discloses an integral type front-end system based on a digital television. The integral type front-end system based on the digital television comprises a central processing device, a field programmable gate array (FPGA) chip, a digital signal processor (DSP) chip and a function card. The function card comprises any one kind or any several kinds of an encoding card, a multiplex card, a scrambling card, a modulation card and an internet protocol (IP) card. The FPGA chip and the DSP chip are respectively connected with the central processing device, the FPGA chip and the DSP chip are connected, and the FPGA chip is respectively connected with every function card. According to the integral type front-end system based on the digital television, through flexible assembly of a plurality of function card slots, the functions such as modulation, scrambling, encoding and multiplex can be achieved, computer room space can be saved to a larger extent, comprehensive energy consumption is lowered, cost is lowered, and flexibility and convenience of assembling networks are improved.
Description
Technical field
The utility model relates to a kind of front end system based on DTV, is specifically related to a kind of multi-functional headend equipment that can be used for digital television transfer middle pitch, video source processing.
Background technology
Along with digital TV network constantly develops, under the overall background of the integration of three networks, the DTV various network device also constantly develops to multi-functional, many interfaces direction.Simultaneously, green energy conservation, unified management and saving machine room space also form mainstream standard gradually.
Yet current a big chunk is applied to the equipment of digital TV front-end system, and for example encoder, multiplexer, modulator or the like all exist with separate equipment, and function is independent.This has not only increased the machine room capacity overhead, has increased wiring cost and management cost, brings inconvenience property also for upgrade expanding and update.
The utility model content
The purpose of the utility model provides a kind of integral type front end system based on DTV.
For realizing above-mentioned purpose; The technical scheme that the utility model is taked is: its integral type front end system based on DTV comprises central processing unit, fpga chip, dsp chip and function card; Wherein, function card comprise in coding card, multiplexing card, scrambling card, modulation card, the IP interface card any or appoint several kinds, fpga chip, dsp chip are connected with central processing unit respectively; Fpga chip is connected with dsp chip, and fpga chip is connected with each function card respectively.
Further, the utility model comprises mainboard and functional cards, and said central processing unit, fpga chip and dsp chip are welded on the said mainboard, and said each function card is inserted into respectively in the slot of functional cards.
Compared with prior art, the beneficial effect of the utility model is:
(1) the utility model need not to re-use the equipment of many platform independent such as encoder, multiplexer, modulator, is a kind of integrated front end system of integrated form DTV.It only needs an equipment, cooperates the function card that is inserted in the function card slot can realize coding, modulation, scrambling, function such as multiplexing through being welded on central processing unit, fpga chip and dsp chip on the mainboard, and structure is simpler, cost is lower.
(2) function card of the utility model can be according to actual networking needs, and flexible combination on an equipment is avoided the connection of the complicacy between a plurality of autonomous devices in the prior art, reaches the effect of flexible networking.
(3) employing is integrated in central processing unit, fpga chip and dsp chip on the mainboard; And be inserted in the flexible assembly of function card on the function card slot and realize modulation, scrambling, coding, function such as multiplexing through a plurality of; Realize the integrated of multiple function thus; Reduce shared machine room space of a plurality of separate equipment and comprehensive power consumption, and made things convenient for the unified management configuration, improved the uniformity and upgrading convenience of network.
Description of drawings
Fig. 1 is the structural representation block diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Referring to Fig. 1, the utility model mainly comprises central processing unit, fpga chip, dsp chip and function card, and fpga chip, dsp chip are connected with central processing unit respectively, and fpga chip is connected with dsp chip, and each function card then is connected with fpga chip respectively.
Wherein, the central processing unit model that can select for use Freescale (freescale) company to produce is the central processing unit chip of mpc8270.
Function card according to whether needs coding, scrambling of the information source that inserts, be modulated into stable high-frequency radio frequency oscillator signal, realize signal IP transmission etc., and correspondingly select for use in coding card, multiplexing card, scrambling card, modulation card, the IP interface card any or appoint several kinds.If the information source that inserts also need be carried out other function treatment, then can increase other function corresponding cards.
In the utility model, coding card is used for the audio frequency and video information source is encoded.Coding card can be selected MPEG-2 high definition coding card, the SD coding card etc. of high definition coding card, AVS high definition coding card, various standards H.264 for use.
Multiplexing card is used for the information source of accomplishing coding is carried out multiplexing, with signal access multiplexing cards such as multi-channel video, speeches, is implemented in and mixes the multiple signal of biography on the circuit, thereby reduced the network service cost.The scrambling card is used for carrying out scrambling with sending out to the audio frequency and video information source of terminal set top box, realizes the empowerment management to information source.
Modulation card is used for vision signal and audio signal that information source (can be the AV signal source from DTV STB, satellite digital tv receiver, DVD player, computer, video camera, television demodulator etc.) is provided are modulated into stable high-frequency radio frequency oscillator signal, realizes the stability of output signal frequency.When needs were realized signal IP transmission, the utility model can the configuration of IP interface card, the IP networking when converting the output of ASI signal the IP transmission to the practical integration of three networks.
When the information source of DTV can support terminal be play through coding, the utility model then can not use coding card, and directly through multiplexing card, scrambling card and modulation card signal is exported.Have only one the tunnel when information source, need not then can not use multiplexing card when multiplexing through the utility model transmission.
In specific network environment, the utility model can satisfy the flexibility of networking through only disposing one or several function cards to realize corresponding message source process function.
As a kind of preferred implementation, the utility model is welded on central processing unit, fpga chip and dsp chip on the mainboard, and each function card is inserted into respectively in the slot of functional cards.Thus; Integratedly improved the integrated level of system, thereby further realized the saving of machine room space and wiring cost, the comprehensively decline of power consumption such as various functions such as coding, multiplexing, scrambling, modulation; And make things convenient for the unified management configuration, improved the uniformity and upgrading convenience of network.Simultaneously, separate, improved the reusing degree of control chip, practiced thrift integrated cost through controlling with function.
When using the utility model front end system; The information source of DTV is linked on the function card of corresponding the utility model front end system; Central processing unit detects the function card in the slot that is inserted into functional cards; Fpga chip through being attached thereto is controlled function card; And through the dsp chip that is connected with fpga chip information source is handled accordingly, the signal of finishing dealing with outputs on the corresponding function card through the control of fpga chip, realizes various functions such as coding, multiplexing, scrambling and modulation thus.
The application of the utility model can also be expanded along with network and application and development; For example when needs when information source is carried out content analysis and safety monitoring; Can content analysis and safety monitoring be realized on a function card; And this function card is inserted in the functional cards slot of the utility model; Dsp chip carries out the signal of input content analysis and safety monitoring and then the control of the signal of finishing dealing with through the FGPA chip is outputed to the corresponding function card, to realize content analysis and the safety monitoring to information source.
Claims (2)
1. integral type front end system based on DTV; It is characterized in that: comprise central processing unit, fpga chip, dsp chip and function card; Said function card comprise in coding card, multiplexing card, scrambling card, modulation card, the IP interface card any or appoint several kinds; Said fpga chip, dsp chip are connected with central processing unit respectively, and fpga chip is connected with dsp chip, and fpga chip is connected with each function card respectively.
2. integral type front end system according to claim 1 is characterized in that: also comprise mainboard and functional cards, said central processing unit, fpga chip and dsp chip are welded on the said mainboard, and said each function card is inserted in respectively in the slot of functional cards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201703570U CN202551244U (en) | 2012-04-20 | 2012-04-20 | Integral type front-end system based on digital television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201703570U CN202551244U (en) | 2012-04-20 | 2012-04-20 | Integral type front-end system based on digital television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202551244U true CN202551244U (en) | 2012-11-21 |
Family
ID=47171800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201703570U Expired - Fee Related CN202551244U (en) | 2012-04-20 | 2012-04-20 | Integral type front-end system based on digital television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202551244U (en) |
-
2012
- 2012-04-20 CN CN2012201703570U patent/CN202551244U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200605564A (en) | System and method for integrated control within a home entertainment system | |
| CN205901797U (en) | Intelligence PON terminal based on integration of three networks and cloud calculate | |
| KR20110062508A (en) | A method for sharing channel map of digital broadcast systems in a home network and a system thereof | |
| CN104539993B (en) | A kind of broadcast high definition television access device and method based on USB transmission of video | |
| US20210116981A1 (en) | Power Adapter with Networking | |
| CN207117651U (en) | One kind fusion home gateway | |
| CN202551244U (en) | Integral type front-end system based on digital television | |
| CN205105345U (en) | Audio frequency and video playback devices | |
| CN204334852U (en) | A kind of broadcast HDTV (High-Definition Television) access device based on USB transmission of video | |
| CN105516757B (en) | A kind of Z-operation system intelligent radio display system detached with intelligent use system | |
| CN109218784A (en) | TV set-top box device with router feature | |
| CN104754293A (en) | Mixed monitoring system of digital HD video and analog HD video and construction method | |
| CN206060923U (en) | A kind of intelligent instructor in broadcasting's equipment | |
| CN104754379A (en) | Data transmission method and data transmission device | |
| CN205693692U (en) | Share the intelligent gateway of USB | |
| CN105828249B (en) | A kind of electronic equipment and its audio frequency processing circuit, the output intent of audio signal | |
| CN204259078U (en) | A kind of interconnection device with the Web TV of anti-skidding remote controller | |
| CN206313815U (en) | A kind of quick-downloading system of large-data documents | |
| CN211296861U (en) | Set-top box accessed to multiple types of networks | |
| CN206977613U (en) | A kind of system of four-in-one set top box | |
| CN101924915A (en) | Power line-based digital television signal accessing method and digital television | |
| KR20130133965A (en) | Access device for smart tv selectively using hdmi and mhl | |
| CN210805219U (en) | Network streaming media audio playing device | |
| CN202435516U (en) | Hybrid signal switchover switch box of satellite television signal cable | |
| CN205305035U (en) | A STB disconnect -type network module for EOC inserts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20140420 |