CN203984595U - A kind of simple and easy network television-set top-set-box main frame - Google Patents
A kind of simple and easy network television-set top-set-box main frame Download PDFInfo
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- CN203984595U CN203984595U CN201420169289.5U CN201420169289U CN203984595U CN 203984595 U CN203984595 U CN 203984595U CN 201420169289 U CN201420169289 U CN 201420169289U CN 203984595 U CN203984595 U CN 203984595U
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- interface
- interface block
- control chip
- main frame
- main control
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Abstract
The utility model discloses a kind of simple and easy network television-set top-set-box main frame, comprise infrared remote receiver outer cover, CVBS interface block, HDMI interface block, USB interface seat, RJ45 interface block, DB9 interface block (public affairs), DB9 interface block (mother), power interface seat, plastic casing and internal circuit board.Described infrared remote receiver outer cover is a transparent plastic plate, be embedded on the front panel of plastic casing, described CVBS interface block, HDMI interface block, USB interface seat, RJ45 interface block, DB9 interface block (public affairs), DB9 interface block (mother), power interface seat is embedded on the rear board of plastic casing, and described internal circuit board is arranged on the inside of plastic casing.Adopt the utility model disclosed method to realize the broadcasting to Internet video and network TV program, being combined with external Infrared remote controller can free request program, and its circuit structure is simple, working stability, and failure rate is low, the speed of service is fast, is convenient to maintenance upgrade.
Description
Technical field
The utility model belongs to TV set-top box technical field, particularly a kind of simple and easy network television-set top-set-box main frame.
Background technology
At present, along with popularizing of network technology, broadband has also all been installed by many families, utilizes the Internet can watch on computers film video and TV programme, and network television-set top-set-box is operated and given birth to.The network television-set top-set-box technical scheme complexity of selling in the market, failure rate is high, and the speed of service is slow, and image continuity is poor, and production cost is high, is more not easy to maintenance upgrade.
Summary of the invention
In order to address the above problem, the utility model provides a kind of simple and easy network television-set top-set-box main frame.
The technical solution adopted in the utility model is: a kind of simple and easy network television-set top-set-box main frame, comprises main control chip, program storage, video memory, ethernet transceiver, network isolation transformer, Ethernet interface seat, infrared receiving terminal, Power Management Unit, power interface, crystal oscillator, serial communication interface, detail programming mouth, USB interface, HDMI interface, CVBS interface and plastic casing.Described main control chip is connected with program storage, video memory, ethernet transceiver, infrared receiving terminal, Power Management Unit, crystal oscillator, serial communication interface, detail programming mouth, USB interface, HDMI interface and CVBS interface.Described program storage is used for storing the program that main control chip needs.The Video processing that described video memory is main control chip provides memory space.Described ethernet transceiver is used for receiving and dispatching Ethernet data, and it can be realized auto negotiation, automatically determine the function of best speed and duplex pattern.Described network isolation transformer is used for isolating the direct current between ethernet transceiver and extraneous local area network (LAN) or broadband network, and signal transmission, and in addition, there is instrument transformer its inside, can be used to eliminate the common mode disturbances of institute's signal transmission.Ethernet interface seat is used for connecting extraneous local area network (LAN) or broadband network.Described infrared receiving terminal is used for receiving the signal of external Infrared remote controller, adjusts programme content or network television-set top-set-box host parameter is set.Described Power Management Unit is connected with main control chip, program storage, video memory, ethernet transceiver and power interface, the DC power supply that power interface is brought changes 3.3V into, for main control chip, program storage, video memory, ethernet transceiver provide working power.Described power interface is used for connecting external 5～12V DC power supply.Described crystal oscillator is used for providing work clock signal for main control chip.Described serial communication interface, for test and system upgrade port, is used for test software programs and upgrade-system software.Described detail programming mouth is used for writing and debugging in QT development platform the linxu system program on main control chip.Described USB interface is used for connecting the external external memory such as USB flash disk, portable hard drive, and main control chip can be read the inner video file of external storage and be play by this USB interface.Described HDMI interface is HDMI (High Definition Multimedia Interface), can network television-set top-set-box main frame be connected with LCD TV by HDMI connecting line, is used for displaying video and voice document.Described CVBS interface is composite video interface, can the RCA plug on network machine top box be connected with the RCA plug of television set by Audio and Video interface line, is used for transmission of video and voice signal.Described plastic casing is used for mounting circuit boards and various interface seat and infrared remote receiver outer cover.This simple and easy network television-set top-set-box main frame has been realized the broadcasting to Internet video and network TV program, and being combined with external Infrared remote controller can free request program.
Compared with prior art, the utility model has the advantage of: circuit structure is simple, working stability, failure rate is low, the speed of service is fast, is convenient to maintenance upgrade.
Brief description of the drawings
Fig. 1 is appearance assumption diagram of the present utility model;
Fig. 2 is that internal circuit board of the present utility model connects block diagram;
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.The utility model is only the description to the utility model execution mode, scope of the present utility model is not had to any restriction.
Embodiment 1
As shown in Figure 1, be appearance assumption diagram of the present utility model.Comprise infrared remote receiver outer cover 11, CVBS interface block 12, HDMI interface block 13, USB interface seat 14, RJ45 interface block 15, DB9 interface block (public affairs) 16, DB9 interface block (mother) 17, power interface seat 18, plastic casing 19.Described infrared remote receiver outer cover is a transparent plastic plate, be embedded on the front panel of plastic casing, described CVBS interface block, HDMI interface block, USB interface seat, RJ45 interface block, DB9 interface block (public affairs), DB9 interface block (mother), power interface seat is embedded on the rear board of plastic casing.
As shown in Figure 2, for internal circuit board of the present utility model connects block diagram.Comprise main control chip 21, program storage 22, video memory 23, ethernet transceiver 24, network isolation transformer 25, Ethernet interface seat 26, infrared receiving terminal 27, Power Management Unit 28, power interface 29, crystal oscillator 210, serial communication interface 211, detail programming mouth 212, USB interface 213, HDMI interface 214, CVBS interface 215.Described main control chip 21 adopts ALI M3910C multifunctional single chip processor.Described program storage 22 adopts Nand Flash chip MX30LF1G08AA.The J1116BASE memory that described video memory 23 adopts Er Bida to produce.Described ethernet transceiver 24 adopts low-power consumption 10base-T/100BASE-TX physical layer (PHY) transceiver LAN8720A.Described network isolation transformer 25 adopts ATF-018.Described Ethernet interface seat 26 is RJ45 interface block.Described infrared receiving terminal 27 adopts the omnipotent infrared receiving terminal VS1838B of universal integrated.The main control chip of described Power Management Unit 28 adopts MC34063 power management chip.Described power interface 29 is used for connecting external 5～12V DC power supply.Described crystal oscillator 210 is the passive crystal oscillator of 25MHz.Described serial communication interface 211 is DB9 pin male.Described detail programming mouth 212 is DB9 pin female.Described USB interface 213 is USB_A type female seat.Described HDMI interface 214 is a standard HDMI female socket.Described CVBS interface 215 is composite video interface, respectively 1 RCA video plug and 2 left and right acoustic channels RCA audio jack.
The above; only with preferably embodiment of the utility model; but protection range of the present utility model is also confined to this; any be familiar with those skilled in the art the utility model disclose technical scope in; can think variation or the replacement expected easily, all should be encompassed in protection range of the present utility model and so on.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (7)
1. a simple and easy network television-set top-set-box main frame, comprises main control chip, program storage, video memory, ethernet transceiver, network isolation transformer, Ethernet interface seat, infrared receiving terminal, Power Management Unit, power interface, crystal oscillator, serial communication interface, detail programming mouth, USB interface, HDMI interface, CVBS interface and plastic casing; It is characterized in that described main control chip is connected with program storage, video memory, ethernet transceiver, infrared receiving terminal, Power Management Unit, crystal oscillator, serial communication interface, detail programming mouth, USB interface, HDMI interface and CVBS interface; Described program storage is used for storing the program that main control chip needs; The Video processing that described video memory is main control chip provides memory space; Described ethernet transceiver is used for receiving and dispatching Ethernet data; Described network isolation transformer is used for isolating the direct current between ethernet transceiver and extraneous local area network (LAN) or broadband network and suppresses common mode disturbances, and signal transmission; Ethernet interface seat is used for connecting extraneous local area network (LAN) or broadband network; Described infrared receiving terminal is used for receiving the signal of external Infrared remote controller; Described Power Management Unit is changed with the DC power supply that power interface is brought, for main control chip, program storage, video memory, ethernet transceiver provide working power; Described power interface is used for connecting external DC power supply; Described crystal oscillator is used for providing work clock signal for main control chip; Described serial communication interface is used for test software programs and upgrade-system software; Described detail programming mouth is used for writing and debugging the program on main control chip; Described USB interface is used for connecting the external external memory such as USB flash disk, portable hard drive; Described HDMI interface is used for connecting LCD TV; Described CVBS interface is used for the RCA plug of connecting TV machine, transmission of video and voice signal; Described plastic casing is used for installing host circuit board and infrared remote receiver outer cover.
2. simple and easy network television-set top-set-box main frame according to claim 1, is characterized in that: described main control chip is ALI M3910C processor.
3. simple and easy network television-set top-set-box main frame according to claim 1, is characterized in that: described program storage is MX30LF1G08AA.
4. simple and easy network television-set top-set-box main frame according to claim 1, is characterized in that: described video memory is J1116BASE memory.
5. simple and easy network television-set top-set-box main frame according to claim 1, is characterized in that: described ethernet transceiver is LAN8720A.
6. simple and easy network television-set top-set-box main frame according to claim 1, is characterized in that: described crystal oscillator is the passive crystal oscillator of 27MHz.
7. simple and easy network television-set top-set-box main frame according to claim 1, is characterized in that: described infrared receiving terminal is VS1838B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169289.5U CN203984595U (en) | 2014-04-09 | 2014-04-09 | A kind of simple and easy network television-set top-set-box main frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169289.5U CN203984595U (en) | 2014-04-09 | 2014-04-09 | A kind of simple and easy network television-set top-set-box main frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984595U true CN203984595U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420169289.5U Expired - Fee Related CN203984595U (en) | 2014-04-09 | 2014-04-09 | A kind of simple and easy network television-set top-set-box main frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984595U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795700A (en) * | 2014-11-08 | 2015-07-22 | 晶晨半导体(上海)有限公司 | Audio and video signal transmission connector |
-
2014
- 2014-04-09 CN CN201420169289.5U patent/CN203984595U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795700A (en) * | 2014-11-08 | 2015-07-22 | 晶晨半导体(上海)有限公司 | Audio and video signal transmission connector |
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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: 20141203 Termination date: 20150409 |
|
| EXPY | Termination of patent right or utility model |