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A vehicle-mounted satellite TV broadcasting system and method based on MOST network

A technology of satellite TV and broadcasting system, applied in the field of TV, can solve the problems of complicated wiring, high cost, complicated hardware, etc., and achieve the effect of high transmission bandwidth, stable system, efficient and timely streaming signal transmission

Active Publication Date: 2018-05-01
广东金鼎移动传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Disadvantages: The audio and video signals demodulated by the set-top box need to be modulated into analog RF signals through a multiplexer, and the hardware is complex
Each TV needs to connect an antenna and add a tuning module, the wiring is complicated and the cost is high

Method used

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  • A vehicle-mounted satellite TV broadcasting system and method based on MOST network
  • A vehicle-mounted satellite TV broadcasting system and method based on MOST network
  • A vehicle-mounted satellite TV broadcasting system and method based on MOST network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] This embodiment provides a vehicle-mounted satellite TV broadcasting system based on the MOST network, such as figure 1 As shown, it includes: satellite receiver top box 02, audio and video ADC module 03, MPEG board 04, intelligent network interface controller 05, vehicle-mounted TV set 06, wherein,

[0059] Each of the satellite receiver top boxes 02 is used to receive and demodulate each TV program signal. The vehicle-mounted satellite antenna is used to receive TV program signals from satellites. The vehicle-mounted satellite antenna has the function of locking the designated satellite during movement, and can transmit multimedia information such as voice, data, dynamic images, faxes, etc. . Generally receive Ku-band satellite signals, the working frequency is 10.7-12.7GHz.

[0060] Can but not be limited to, the number of the satellite receiver top box 02 is determined according to the number of TV programs that need to be played, and the TV program signal that ea...

Embodiment 2

[0073] This embodiment provides a vehicle-mounted satellite TV broadcasting system based on the MOST network, such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that it also includes a low-noise down-frequency amplifier 07 and a power divider 08, wherein,

[0074] The low-noise down-frequency amplifier 07 is connected with the vehicle-mounted satellite antenna 01, and its function is to amplify and reduce the frequency of the TV program signal received by the vehicle-mounted satellite antenna 01, such as changing Ku or C-band signals into L-band . The working process of the low-noise down-frequency amplifier 07 is to first amplify the high-frequency signal of the TV program received by the vehicle-mounted satellite antenna 01, and then use the local oscillator circuit to convert the high-frequency signal to an intermediate frequency and amplify it again, so as to benefit the same time. The axial cable transmits the TV program signal and the...

Embodiment 3

[0078] The present embodiment provides a method for broadcasting vehicle-mounted satellite television based on the MOST network, such as Figure 5 As shown, the method includes:

[0079] 001. Each set-top box of the satellite receiver respectively receives and demodulates each TV program signal.

[0080] 002. Convert the analog audio and video signals of TV programs received by each satellite receiver set-top box into digital signals.

[0081] 003. Compress the digital signal and transmit it to the MOST network, so that the compressed TV program signals are streamed in the MOST network.

[0082] 004. Select to play each of the TV programs streamed in the MOST network.

[0083] It may be, but not limited to, that the number of the satellite receiver set-top boxes is determined according to the number of TV programs to be played, and the TV program signals that each satellite receiver set-top box needs to receive are preset.

[0084] It can be seen from the above that by appl...

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Abstract

The invention relates to the field of televisions, and discloses a vehicle-mounted satellite television broadcasting system based on a MOST network, which includes a vehicle-mounted satellite antenna, a vehicle-mounted television set, and further includes: a satellite receiver set-top box, an audio-video ADC converter, an MPEG board, and an intelligent network interface control device, wherein each of the satellite receiver set-top boxes is used to receive and demodulate each TV program signal, and the audio-video ADC converter is used to convert the audio-video analog signal of the TV program received by each of the satellite receiver set-top boxes into digital signal, the MPEG board is used to compress the digital signal converted by the audio-video ADC converter in real time, and transmit it to the intelligent network interface controller, and the intelligent network interface controller is connected to the MOST network, and each institute The vehicle-mounted TV is connected to the MOST network. Adopting this technology has the advantages of simple data processing and wiring, high transmission efficiency, small delay, stable system, and high transmission bandwidth.

Description

technical field [0001] The invention relates to the field of televisions, in particular to a vehicle-mounted satellite television broadcasting system and method based on a MOST network. Background technique [0002] Early cars didn't have any entertainment systems. With the development of electronic technology and the improvement of living standards, car audio has gone through several processes: [0003] In 1924, Chevrolet built the first car equipped with a radio, ushering in a new era of car audio. [0004] In the 1970s, car audio entered the era of cassette players. [0005] In the 1980s, car audio entered the era of CD players. [0006] In the 1990s, car audio entered the DVD era. [0007] After 2000, car audio entered the era of navigation. [0008] Since 2007, one-button navigation and the development of the Internet of Vehicles have brought car navigation into a golden age of rapid development. Various factories and brands of car navigation have sprung up like mu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/414H04N21/643H04N7/20H04L29/06
Inventor 叶少甘卢慧奇
Owner 广东金鼎移动传媒有限公司