Security monitor system for cable TV network

A security monitoring system, cable television network technology, applied in transmission monitoring, transmission system, pulse modulation TV signal transmission and other directions, can solve the problems of no cable television network security monitoring system, bad political influence, etc.

Inactive Publication Date: 2003-02-12
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cable TV networks are widely distributed in cities and villages. The security management of such a large and scattered network is a very complicated and difficult task, especially for some illegal organizations to achieve their insidi...

Method used

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  • Security monitor system for cable TV network
  • Security monitor system for cable TV network
  • Security monitor system for cable TV network

Examples

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Embodiment Construction

[0009] Such as figure 1 , the cable TV network security monitoring system of the present invention, it includes station terminal equipment and user network terminal equipment, and wherein station terminal equipment is made up of mixer and cable TV transmitter, and user network terminal equipment is made up of each trunk line amplifier, multiple user amplifiers and multiple It is composed of an intelligent branch distributor and a user terminal TV. The input of the mixer in the terminal equipment is connected to various cable TV signals, and its output is connected to the input of the cable TV transmitter. The output of the cable TV transmitter is connected to the terminal equipment of the user network. Each main line amplifier is input, the output of each main line amplifier is connected to the input of a plurality of user amplifiers corresponding respectively, and the output of each user amplifier is connected to each corresponding user terminal TV set through a plurality of i...

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Abstract

A safety monitor system for cable TV network is composed of station equipment and user's network terminals. The station equipment consists of mixer and cable TV transmitter. The user's network terminals comprise trunk amplifiers, user's amplifiers, intelligent branch distributors and user's TV receiver sets. The mixer is connected via FM broadcast modulator to an encoder for transmitting synchronizing signals of encrypted data.

Description

technical field [0001] The invention relates to a safety monitoring system for a cable television network. Background technique [0002] Cable TV networks are widely distributed in cities and villages. It is a very complicated and difficult task to manage the security of such a large and scattered network. Pirate broadcasting and insertion of illegal TV programs in the network cause very bad political influence. So far, there is no good security monitoring system that can prevent the cable TV network from being pirated and inserted. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems and provide a cable TV network security monitoring system that can effectively prevent the cable TV network from being pirated and inserted. [0004] Technical solution of the present invention: [0005] A cable TV network security monitoring system, which includes station-end equipment and user network terminal equipment, wherein t...

Claims

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Application Information

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IPC IPC(8): H04NH04N7/10H04N7/54
Inventor 李诚元
Owner NANJING UNIV OF POSTS & TELECOMM
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