Method and apparatus for monitoring operation status of broadcast television satellite transmission system

A transmission system, radio and television technology, applied in television, electrical components, image communication, etc., can solve problems such as high labor intensity, inability to provide timely and accurate early warning information, and unsafe broadcast work

Inactive Publication Date: 2007-12-05
FUJIAN MEDIA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, manual methods are used to observe the spectrum analyzer and TV decoding images to monitor the attack situation, which is labor-intensive. In many cases, the spectrum

Method used

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  • Method and apparatus for monitoring operation status of broadcast television satellite transmission system

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Comparison scheme
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Embodiment Construction

[0019] As shown in Figure 1, the working principle of this device:

[0020] When working normally, the uplink power, downlink power and carrier-to-noise ratio are all within the normal range, ensuring that the bit error rate is within the normal range, and programs can be received normally.

[0021] Natural interference (such as rain attenuation, etc.) or equipment failure will only cause the bit error rate to rise to a complete bit error. In this case, the useful power of the channel should be significantly smaller in most cases.

[0022] In the case of single carrier and narrowband interference, the man-made interference is similar to the natural interference observed from the receiver. A single carrier (or narrowband) peak can be seen on the spectrum of the downlink signal. In the case of interference with signals with the same parameters (same bandwidth, symbol rate, and modulation mode), the power of the downlink signal is basically unchanged when the satellite transpond...

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PUM

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Abstract

This device consists of the couple receiver, the down-going receiver, the channel monitor, the freq spectrum instrument, the transferring flow comparer, the transferring flow recorder, the gateway, the net switcher, the monitor server and the monitor terminal. This method includes: (1) using computer technique to collect real time the channel error ratio (CER) and the freq spectrum signal (FSS) of up-going/ down-going program of the broadcasting TV satellite; (2) comparing the code flow and analyzing FSS and CER to judge the vicious interfere and to raise automatically the up-going power to oppugn fast and accurately the illegal interfere. This invention possesses functions, such as: monitor, supervision/ control, failure auto diagnosis and intelligent management, etc.; and features of the data real time record, the log searching and the failure note sending, etc.

Description

technical field [0001] The invention relates to a monitoring terminal, in particular to the working status of broadcast and television satellite transmission system equipment. Background technique [0002] The satellite broadcasting system includes video and audio switchers, encoders, multiplexers, modulators, upconverters, high-power amplifiers and waveguide switchers, etc., some of which have their own independent control workstations, and some have no intelligent control and monitoring equipment to achieve A unified equipment monitoring, alarm and management platform can greatly reduce the labor intensity of personnel, especially combat illegal attacks and interference, and ensure safe and reliable broadcasting. [0003] At present, manual methods are used to observe the spectrum analyzer and TV decoding images to monitor the attack situation, which is labor-intensive. In many cases, the spectrum and image signals cannot accurately and quickly reflect the interference of ...

Claims

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Application Information

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IPC IPC(8): H04N17/00H04N17/04
Inventor 陈文广刘群林毅唐仁泉武卫平
Owner FUJIAN MEDIA GROUP
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