Radio and television monitoring method
A technology of radio and television, television receivers, applied in the direction of electrical components, image communication, selective content distribution, etc.
Inactive Publication Date: 2015-01-28
CHENGDU JIUHUA YUANTONG TECH DEV
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At the same time, criminals' illegal signal attacks on radio and television seriously affect the normal broadcasting of radio and television. If illegal signals and other illegal programs are broadcast, it will cause a relatively large negative impact
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0027] Such as figure 1 Shown, a kind of radio and television monitoring method is characterized in that: it comprises the following steps:
[0028] S1. The antenna unit receives the broadcast TV signal, and inputs the broadcast TV signal into each TV receiver through the TV distributor;
[0029] S2. Each TV receiver demodulates the broadcast TV signal respectively, and then inputs the demodulated broadcast TV signal into the video server;
[0030] S3. The video server records and records the input radio and television signals to form independent disk audio and video files, and inputs the radio and television signals to the signal processing module;
[0031] S4. The signal processing module extracts the vertical synchronization signal in ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a radio and television monitoring method. The method includes the following steps that an antenna unit receives radio and television signals, and the radio and television signals are input to television receivers respectively through a television distributor; the television receivers demodulate the radio and television signals respectively and input the radio and television signals to a video server; the video server conducts video recording and sound recording on the input radio and television signals, and the radio and television signals are input in a signal processing module; the signal processing module extracts out vertical synchronization signals in the input radio and television signals, the radio and television signals are delayed, 'and' processing is conducted on the radio and television signals and the vertical synchronization signals, and the result is input to a judgment module; the judgment module judges the input 'and' processing result, if the result is a straight line, no illegal signal interference is generated, and if the result is a series of pulse signals, illegal signal interference is generated and an alarm is given. According to the method, multiple channels of radio and television programs can be monitored in real time, and video recording and sound recording are conducted on the monitored programs.
Description
technical field [0001] The invention relates to the field of radio and television monitoring, in particular to a radio and television monitoring method. Background technique [0002] In today's society, radio and television work is a very important communication medium. The radio and television signal transmission network is an important basic network of the country. Due to its publicity and openness, radio and television signals are easily disturbed during transmission. In recent years, with the rapid development of science and technology, various types of radio waves in the air have increased rapidly, and the transmission power has become larger and larger, and there are more and more types of interference signals, which have a greater impact on the normal transmission of radio and television signals. At the same time, criminals' illegal signal attacks on radio and television seriously affect the normal broadcasting of radio and television. If illegal signals and other il...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/442H04N21/231H04N21/438
CPCH04N21/44236H04N21/231H04N21/4382
Inventor 宁涛王景岑巍吴伟冬
Owner CHENGDU JIUHUA YUANTONG TECH DEV