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Digital information transmission system based on satellite channel multiplexing and transmission method thereof

A technology of multiplexing and satellite channels, which is applied to a digital information transmission system based on satellite channel multiplexing and its transmission field, and can solve the problems of high computational complexity and high cost.

Inactive Publication Date: 2012-07-25
EAST CHINA NORMAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The standardized satellite receiving device in the prior art includes components such as satellite antenna, RF receiving module, image decoding module, audio and video connection terminal, and the main processing object of the standardized satellite receiving device is audio and video multimedia information in the satellite carrier. Complexity and high cost

Method used

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  • Digital information transmission system based on satellite channel multiplexing and transmission method thereof
  • Digital information transmission system based on satellite channel multiplexing and transmission method thereof
  • Digital information transmission system based on satellite channel multiplexing and transmission method thereof

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Embodiment 1

[0040] The digital information transmission system based on satellite channel multiplexing of the present embodiment, refer to figure 1 as shown, figure 1 It is a schematic structural diagram of the digital information transmission system based on satellite channel multiplexing in the present invention. The digital information transmission system based on satellite channel multiplexing of the present invention includes at least one satellite uplink station 100 and multiple remote single-receiving devices 200 to realize the introduction of remote device control command information and satellite wide-area distribution.

[0041] like figure 1 As shown, the satellite uplink station 100 includes: a remote equipment centralized management machine 101 , a multimedia signal source 102 , a TS stream multiplexer 103 , a modulator 104 , a radio frequency unit 105 , and an interface / protocol adaptation module 106 . Among them, the multimedia signal source 102 is connected to the TS mult...

Embodiment 2

[0067] There are several forks in a road section in a remote mountainous area, and electronic placards need to be installed to remind road anomalies and vehicle diversion information such as road interruptions caused by landslides and falling rocks that often occur in this area. However, this road section is located deep in the mountains. If traditional laying cables are used to connect several electronic placards, there are difficulties such as long connection lines, difficult construction, large capital investment, and long construction period. Therefore, no communication cables are laid along the road. The application requirement can be met by adopting the invention, and the difficult factors of appeal can be effectively overcome.

[0068] Figure 4 It is a structural schematic diagram of setting the road electronic traffic sign board for the present invention. like Figure 4 As shown, there is a standard satellite uplink station 100 in the digital information transmissio...

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Abstract

The invention discloses a digital information transmission system based on satellite channel multiplexing, comprising a satellite ascending station and a far-end receive-only device; and the satellite ascending station converts the format of a far-end control instruction into a TS stream data format, and the far-end control instruction is issued to the far-end receive-only device by multiplexing through a satellite channel so as to realize control over a far-end receive-only device. The transmission system is simple in structure, supports marshalling management, is low in manufacture and maintenance, and is suitable for large-scale popularization. The invention also discloses a transmission method of the digital information transmission system based on the satellite channel multiplexing. The transmission system and the transmission method are applicable to wide-area issuing of control instructions and related digital information of streetlamps, signal lamps, electronic signs and alarms at regions with weak ground communication coverage such as suburbans, fields, mountainous area and lake islands.

Description

technical field [0001] The invention relates to a satellite transmission system and a transmission method of remote equipment control information, in particular to a digital information transmission system and a transmission method based on satellite channel multiplexing. Background technique [0002] In areas with low population density, such as urban suburbs, wilderness, mountainous areas, lake islands, etc., the coverage of ground communication lines is relatively weak, and the traditional way of laying communication cables is generally used to realize the communication of remote information equipment such as street lights, signal lights, electronic signs, and sirens. The remote release of control instructions and digital information has many problems such as high investment cost, long construction period, difficult construction, and difficult maintenance in the later stage. Satellite communication uses high-altitude geostationary orbit satellites as link relays. It has t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185H04J3/00
Inventor 徐文超刘一清杨艳琴
Owner EAST CHINA NORMAL UNIV
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