Possesses the modularization Set Top Box of UTI interfaceTechnical field
The present invention relates to a kind of digital TV set-top box equipment, particularly a kind of set-top box device possessing UTI interface.
Background technology
Set Top Box is the equipment connecting television set and outside source, and the digital signal of compression can be changed into television content by it, and shows on a television set.At present, radio and television departments generally adopt the mode of overall transformation to complete the digital improvement of radio and television, and the most critical link of overall transformation is exactly terminal receiving equipment and Set Top Box.But along with the continuous expansion of business, the SD Set Top Box of low cost can not meet the demand of fast-developing value-added service.Under the condition of existing equipment, realize the fast development of value-added service, just must be equipped with the higher Set Top Box of performance to user, as high definition bidirectional set-top box, but this brings huge cost pressure by radio and TV operator.Meanwhile, be equipped with the higher Set Top Box of performance to user is unified, unwanted for user function also can be caused to impose on user, thus the huge waste brought.Therefore, Set Top Box has become the critical bottleneck of broadcasting and TV business development.
Summary of the invention
The present invention is directed to the problems referred to above that existing Set Top Box exists, provide a kind of low cost foundation machine top box with UTI interface, this Set Top Box can be refuted by UTI interface and be connect high-end value-added service module, realizes the needs to runing the various value-added services carried out in future.
Technical scheme of the present invention is: the modularization Set Top Box possessing UTI interface, comprise housing and be placed in the mainboard in housing, described mainboard comprises SD Digital Television SoC, described SD Digital Television SoC is provided with the AV interface be connected with television set, described mainboard also comprises Tuner module and UTI module, described Tuner module comprises Tuner1 and Tuner2, and described UTI module is provided with USB interface; Described Tuner1 is connected with SD Digital Television SoC and transmits scrambling TS and flow, and described Tuner2 and UTI module is connected transmission scrambling TS stream; Described SD Digital Television SoC and UTI module are by being connected transmission of control signals.
Preferably, described mainboard is also provided with 7816 interfaces of refuting with CA card and connecing, described 7816 interfaces are connected with SD Digital Television SoC.
Preferably, described mainboard is also provided with inner socket, described inner socket is 12V or 5V power source internal socket.
Preferably, also having a connection line between described SD Digital Television SoC and UTI module, flowing for transmitting descrambling TS.
Preferably, described in possess UTI interface modularization Set Top Box refuted by the USB interface of UTI module and the USB interface of high-end value-added service module and connect, docked by the power supply input of inner socket with high-end value-added service module.
Preferably, described high-end value-added service module also comprises main system, HDMI, YPbPr interface and other external interfaces, and described HDMI, YPbPr interface are connected respectively, simultaneously with television set and output signal.
Preferably, the main system of described high-end value-added service module is X86 plateform system or Android intelligent system.
Preferably, the AV interface on HDMI with YPbPr two interfaces of described high-end value-added service module or SD Digital Television SoC is connected with television set.
Operation principle of the present invention: be demodulated to two-way TS by the signal of cable TV RF radio frequency input through Tuner1 and Tuner2 and flow: the scrambling TS of (1) Tuner1 demodulation flows, enter SD Digital Television SoC system through TS input interface and complete descrambling, then being delivered in television set the broadcasting completed Standard Definition Television program by AV interface; Meanwhile, the TS stream of descrambling sends into the second road TS path of UTI chip again through TS output interface; (2) the scrambling TS of Tuner2 demodulation flows the first via TS path directly sending into UTI chip.Two-way TS flows through UTI chip internal and carries out signal conversion, sent into by the hi-speed USB interface on UTI chip again in the USB interface of high-end value-added service module, by this USB interface, two-way TS is flowed in the main system of the high-end value-added service module of feeding again, then outputed signal the broadcasting to high-definition television program by HDMI and YPbPr interface to television set.
The invention has the beneficial effects as follows: Set Top Box of the present invention is provided with UTI interface, this Set Top Box both achieved the basic functions such as the live Digital Television of SD and CA descrambling by foundation machine top box, refute by UTI interface again and connect high-end value-added service module, as bidirectional applications, high definition application, internet, applications etc., realize the needs to runing the various value-added services carried out in future.Adopt this Set Top Box, operator can first to the unified foundation machine top box being equipped with low cost of user, then different value-added service modules is provided according to the different demands of user, thus reduce the operation cost of operator, and effectively prevent and unwanted for user function is imposed on user and the huge waste brought.
Accompanying drawing explanation
Fig. 1 is the structural representation of mainboard of the present invention;
Fig. 2 is that mainboard of the present invention and high-end value-added service module refute the structural representation connect.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Embodiment 1:
Possess the modularization Set Top Box of UTI interface, comprise housing and be placed in the mainboard in housing, described mainboard comprises SD Digital Television SoC, Tuner module and UTI module; Described SD Digital Television SoC is provided with the AV interface be connected with television set, and described Tuner module comprises Tuner1 and Tuner2, and described UTI module is provided with USB interface; Described Tuner1 is connected with SD Digital Television SoC and transmits scrambling TS and flow, and described Tuner2 and UTI module is connected transmission scrambling TS stream; Described SD Digital Television SoC is connected by two circuits with UTI module, wherein a transmission descrambling TS stream, and another transmits other control signal.Described mainboard is provided with 7816 interfaces of refuting with CA card and connecing, and described 7816 interfaces are connected with SD Digital Television SoC.Described mainboard is also provided with 12V power source internal socket.
The modularization Set Top Box of the described UTI of possessing interface is refuted by the USB interface of UTI module and the USB interface of high-end value-added service module and is connect, and is docked by the power supply input of 12V power source internal socket with high-end value-added service module.Described high-end value-added service module also comprises X86 plateform system, HDMI, YPbPr interface and other external interfaces, and described HDMI, YPbPr interface are connected respectively, simultaneously with television set and output signal.
Embodiment 2:
Possess the modularization Set Top Box of UTI interface, comprise housing and be placed in the mainboard in housing, described mainboard comprises SD Digital Television SoC, Tuner module and UTI module; Described SD Digital Television SoC is provided with the AV interface be connected with television set, and described Tuner module comprises Tuner1 and Tuner2, and described UTI module is provided with USB interface; Described Tuner1 is connected with SD Digital Television SoC and transmits scrambling TS and flow, and described Tuner2 and UTI module is connected transmission scrambling TS stream; Described SD Digital Television SoC is connected by two circuits with UTI module, wherein a transmission descrambling TS stream, and another transmits other control signal.Described mainboard is provided with 7816 interfaces of refuting with CA card and connecing, and described 7816 interfaces are connected with SD Digital Television SoC.Described mainboard is also provided with 5V power source internal socket.
The modularization Set Top Box of the described UTI of possessing interface is refuted by the USB interface of UTI module and the USB interface of high-end value-added service module and is connect, and is docked by the power supply input of 5V power source internal socket with high-end value-added service module.Described high-end value-added service module also comprises Android intelligence main system, HDMI, YPbPr interface and other external interfaces, and described HDMI, YPbPr interface are connected respectively, simultaneously with television set and output signal.