CN104320675B - Radio and television monitoring system and method - Google Patents
Radio and television monitoring system and method Download PDFInfo
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- CN104320675B CN104320675B CN201410646250.2A CN201410646250A CN104320675B CN 104320675 B CN104320675 B CN 104320675B CN 201410646250 A CN201410646250 A CN 201410646250A CN 104320675 B CN104320675 B CN 104320675B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses a radio and television monitoring system. The system comprises an antenna unit, a radio and television playing system, a television monitoring unit and a control unit. The input of the television monitoring unit is connected with the output of the antenna unit, the output of the television monitoring unit is connected with the input of the radio and television playing system, and the television monitoring unit is further connected with the control unit. The system and method can monitor multiple channels of radio and television programs in real time and conduct video recording and sound recording on the monitored programs.
Description
Technical field
The present invention relates to broadcast television monitoring field, more particularly to a kind of broadcast television monitoring system and method.
Background technology
Today's society, it is a kind of very important communications media that radio and television are made.Broadcast television signal transmission network is state
The important basic network of family, due to its public property, it is open the features such as, broadcast television signal is easily interfered in the transmission.
In recent years, developing rapidly with science and technology, aerial all kinds of electric waves increase sharply, and transmission power is increasing, interference letter
Number species it is more and more, also increasing is affected on the normal transmission of broadcast television signal.Simultaneously lawless person is to broadcast electricity
Depending on illegal signals attack and have a strong impact on the normal broadcast of radio and television, if illegal signals and other violation programs are broadcasted, meeting
Cause larger negative effect.Therefore, in order to prevent interference signal, illegal signals and other violation programs to the normal of radio and television
Broadcast is impacted, and needs to be monitored radio and television, to find that interference or illegal signals and other violations are saved in time
Mesh, and it is checked and is excluded.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of broadcast television monitoring system, realize to many
Road broadcast TV program carries out real-time monitoring, and monitored program is recorded a video and recorded.
The purpose of the present invention is achieved through the following technical solutions：A kind of broadcast television monitoring system, it includes day
Line unit and radio and television Play System, it is characterised in that：It also includes television monitoring unit and control unit, described TV
The input of monitoring unit is connected with the output of antenna element, the output of television monitoring unit and the input of radio and television Play System
Connection, television monitoring unit is also connected with control unit.
Described television monitoring unit includes TV distributor, at least one television receiver, signal adapter and video
Server, the signal input of TV distributor is connected with the output of antenna element, and signal output and the TV of TV distributor connect
The signal input connection of receipts machine, the audio output and video frequency output of television receiver respectively with the audio input of video server and
Video input connect, video server also be connected with control unit carries out data exchange, the control signal of signal adapter and
The control output end connection of control unit, the control output end of signal adapter is connected with the control signal of television receiver.
Described control unit includes signal processing module, discrimination module and host computer, and the input of signal processing module is led to
Cross network interface A to be connected with the output of video server, the output of signal processing module is connected with the input of judge module, judge module
Output be connected with host computer, host computer is connected respectively with video server and signal adapter.
Described television receiver includes the group of one or more in analog television receiver and digital television receiver
Close.
Described television monitoring unit includes network interface A and network interface B, and described video server is single with control by network interface A
Unit's connection, described signal adapter is connected by network interface B with control unit.
It also includes display unit, and described display unit is connected by VGA video interfaces with video server.
Described digital television receiver is CMMB receivers, and described signal adapter turns network interface module for IO.
Described signal processing module includes Signal separator submodule, signal lag submodule and signal comparison sub-module,
The input of Signal separator submodule is connected by network interface A with the output of video server, and the output of Signal separator submodule is divided into
Two-way, is connected respectively with the input of signal lag submodule and signal comparison sub-module, output and the letter of signal lag submodule
The input connection of number comparison sub-module, the output of signal comparison sub-module is connected with the input of judge module.
Described judge module includes processor submodule, decoding submodule, trigger submodule and buffer sublayer module, touches
The input for sending out device submodule is connected with the output of signal comparison sub-module, and the output of trigger submodule is defeated with buffering submodule
Enter connection, buffering submodule is connected with decoding submodule, and decoding submodule is connected with processor submodule, processor submodule
Controlled output is connected respectively with the control input of signal comparison sub-module and buffer sublayer module, the output of processor submodule with it is upper
Position machine connection.
A kind of broadcast television monitoring method, it is characterised in that：It is comprised the following steps：
S1. antenna element receives broadcast television signal, and is respectively input into broadcast television signal respectively by TV distributor
Television receiver；
S2. each television receiver is demodulated respectively to broadcast television signal, then respectively by the radio and television after demodulation
Signal input video server；
S3. video server is recorded a video and is recorded to the broadcast television signal being input into, and forms independent disk audio frequency and video
File, and by broadcast television signal input signal processing module；
S4. signal processing module extracts the vertical synchronizing signal in the broadcast television signal of input, by broadcast television signal
Time delay, then carries out "AND" process by broadcast television signal and vertical synchronizing signal, and the input of "AND" result is judged into mould
Block；Judge module is judged the "AND" result being input into, if result is a straight line, is judged as being disturbed without illegal signals；
If result is a series of pulse signals, it is judged as there are illegal signals to disturb and report to the police, so as to realize the monitor in real time to program.
Described step S2 includes following sub-step：
S21. the channel to be monitored of upper computer selecting, sends the network signal comprising channel information to signal adapter；
S22. the network signal of input is switched to I/O signal by signal adapter, and I/O signal is input into into each television receiver；
S23. the channel information in the I/O signal of each television receiver difference identified input, selects the demodulation channel of itself；
S24. each television receiver is demodulated respectively to broadcast television signal, then respectively by the radio and television after demodulation
Signal input video server.
Described step S4 includes following sub-step：
S41. the video that Signal separator submodule is extracted in the broadcast television signal that video signal preprocessor is sended over hangs down
Straight synchronizing signal, is then input into comparison sub-module, by video vertical synchronization signal input time delay submodule by broadcast television signal；
S42. time delay submodule carries out delay process to the video vertical synchronization signal being input into, then by video vertical synchronization
Signal input comparison sub-module；
S43. comparison sub-module carries out "AND" process to the broadcast television signal that is input into and video vertical signal, and by result
Input judge module.
S44. trigger submodule receives the "AND" result that comparison sub-module sends, if "AND" result is one
Straight line, then trigger submodule do not activate, its output end is set to low level；If "AND" result is a series of pulse signals, touch
The device submodule activation of block is sent out, its output end is set to high level, and by high level input buffering submodule；
S45. processor submodule opens buffering submodule and obtains data by hardware address, determines whether illegal signals and does
Disturb, if low level, then be judged as being disturbed without illegal signals；If high level is then judged as having illegal signals to disturb, and upwards
Position machine sends alarm code, makes host computer report to the police, and then will close after buffering submodule clearing.
The invention has the beneficial effects as follows：
The present invention realizes carrying out multi-channel radio and television program real-time monitoring, and monitored program is recorded a video and recorded
Sound.
Description of the drawings
Fig. 1 is the system block diagram of the broadcast television monitoring system in the present invention；
Fig. 2 is the circuit structure diagram of the television monitoring unit in the present invention；
Fig. 3 is the circuit structure diagram of the control unit in the present invention；
Fig. 4 is the flow chart of the broadcast television monitoring method in the present invention.
Specific embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
Described below.
As shown in figure 1, a kind of broadcast television monitoring system, it includes antenna element, radio and television Play System, TV prison
Survey unit and control unit, the input of television monitoring unit is connected with the output of antenna element, the output of television monitoring unit and
The input connection of radio and television Play System, television monitoring unit is also connected with control unit.
As shown in Fig. 2 television monitoring unit include TV distributor, at least one television receiver, signal adapter and
Video server, the signal input of TV distributor is connected with the output of antenna element, signal output and the electricity of TV distributor
Signal input depending on receiver connects, and the audio output and video frequency output of television receiver is defeated with the audio frequency of video server respectively
Enter and video input connection, video server is also connected with control unit carries out data exchange, the control input of signal adapter
End is connected with the control output end of control unit, and the control output end of signal adapter connects with the control signal of television receiver
Connect.
Described television monitoring unit also includes power module, the input of described power module by power switch with
Ups power connects, and power module is AC-DC power module, the 220V AC powers input that the power module provides ups power
The power supply for being converted to+5V and+12V is exported, and+5V the outputs of power module are connected with power supply indicator, and+the 12V of power module is defeated
Go out and be connected with television receiver and video server respectively.
Described television receiver includes the group of one or more in analog television receiver and digital television receiver
Close.
Described digital television receiver is CMMB receivers, and described signal adapter turns network interface module for IO.
Described broadcast television monitoring system also includes display unit, described display unit by VGA video interfaces with
Video server connects.
Described television monitoring unit also includes network interface A and network interface B, and described video server is by network interface A and control
Unit connects, and described signal adapter is connected by network interface B with control unit.
Described TV distributor selects 5 road TV distributors, wherein the output of three tunnels is received respectively with three simulated televisions
The input connection of machine, all the way output is connected with the input of digital television receiver, all the way output and radio and television Play System
Input connection.
Described signal adapter turns network interface module for IO, and the network signal that control unit is input into is converted to into I/O signal,
And I/O signal is respectively outputted to into analog television receiver and digital television receiver.
Described analog television receiver selects the quick lt291hd in day, and the analog signal of TV distributor input is solved
Adjust, and by the signal output after demodulation to video server.
Described digital television receiver selects Huayang CMMB TV box, the CMMB data signals to the input of TV distributor
It is demodulated, and by the signal output after demodulation to video server.
Described video server possesses network self-adapting technology, according to network bandwidth adjust automatically video frame rate, supports
Various RECORD modes：Manually, timing, mobile detection and video recording of reporting to the police, possess sound video recording log query function, system lock
Various safety guarantee functions such as fixed, press key locking, password inspection, multi-stage user mandate.
As shown in figure 3, described control unit includes signal processing module, discrimination module and host computer, signal transacting mould
The input of block is connected by network interface A with the output of video server, and the output of signal processing module connects with the input of judge module
Connect, the output of judge module is connected with host computer, host computer is connected respectively with video server and signal adapter.
Described signal processing module includes Signal separator submodule, signal lag submodule and signal comparison sub-module,
The input of Signal separator submodule is connected by network interface A with the output of video server, and the output of Signal separator submodule is divided into
Two-way, is connected respectively with the input of signal lag submodule and signal comparison sub-module, output and the letter of signal lag submodule
The input connection of number comparison sub-module, the output of signal comparison sub-module is connected with the input of judge module.
Described judge module includes processor submodule, decoding submodule, trigger submodule and buffer sublayer module, touches
The input for sending out device submodule is connected with the output of signal comparison sub-module, and the output of trigger submodule is defeated with buffering submodule
Enter connection, buffering submodule is connected with decoding submodule, and decoding submodule is connected with processor submodule, processor submodule
Controlled output is connected respectively with the control input of signal comparison sub-module and buffer sublayer module, the output of processor submodule with it is upper
Position machine connection.
Described Signal separator submodule is made up of LM1881.
Described signal lag submodule is made up of C4098.
Described signal comparison sub-module is made up of 74HC08.
Described buffering submodule is made up of 74HC244.
Described decoding submodule is made up of 74HC138.
Described trigger submodule is made up of 74HC74.
Described processor submodule is made up of MCS8031.
As shown in figure 4, a kind of broadcast television monitoring method, it is characterised in that：It is comprised the following steps：
S1. antenna element receives broadcast television signal, and is respectively input into broadcast television signal respectively by TV distributor
Television receiver；
S2. each television receiver is demodulated respectively to broadcast television signal, then respectively by the radio and television after demodulation
Signal input video server；
S3. video server is recorded a video and is recorded to the broadcast television signal being input into, and forms independent disk audio frequency and video
File, and by broadcast television signal input signal processing module；
S4. signal processing module extracts the vertical synchronizing signal in the broadcast television signal of input, by broadcast television signal
Time delay, then carries out "AND" process by broadcast television signal and vertical synchronizing signal, and the input of "AND" result is judged into mould
Block；Judge module is judged the "AND" result being input into, if result is a straight line, is judged as being disturbed without illegal signals；
If result is a series of pulse signals, it is judged as there are illegal signals to disturb and report to the police, so as to realize the monitor in real time to program.
Described step S2 includes following sub-step：
S21. the channel to be monitored of upper computer selecting, sends the network signal comprising channel information to signal adapter；
S22. the network signal of input is switched to I/O signal by signal adapter, and I/O signal is input into into each television receiver；
S23. the channel information in the I/O signal of each television receiver difference identified input, selects the demodulation channel of itself；
S24. each television receiver is demodulated respectively to broadcast television signal, then respectively by the radio and television after demodulation
Signal input video server.
Described step S4 includes following sub-step：
S41. the video that Signal separator submodule is extracted in the broadcast television signal that video signal preprocessor is sended over hangs down
Straight synchronizing signal, is then input into comparison sub-module, by video vertical synchronization signal input time delay submodule by broadcast television signal；
S42. time delay submodule carries out delay process to the video vertical synchronization signal being input into, then by video vertical synchronization
Signal input comparison sub-module；
S43. comparison sub-module carries out "AND" process to the broadcast television signal that is input into and video vertical signal, and by result
Input judge module.
S44. trigger submodule receives the "AND" result that comparison sub-module sends, if "AND" result is one
Straight line, then trigger submodule do not activate, its output end is set to low level；If "AND" result is a series of pulse signals, touch
The device submodule activation of block is sent out, its output end is set to high level, and by high level input buffering submodule；
S45. processor submodule opens buffering submodule and obtains data by hardware address, determines whether illegal signals and does
Disturb, if low level, then be judged as being disturbed without illegal signals；If high level is then judged as having illegal signals to disturb, and upwards
Position machine sends alarm code, makes host computer report to the police, and then will close after buffering submodule clearing.
Claims (10)
1. a kind of broadcast television monitoring system, it includes antenna element and radio and television Play System, it is characterised in that：It is also wrapped
Television monitoring unit and control unit are included, the described input of television monitoring unit is connected with the output of antenna element, TV prison
The output for surveying unit is connected with the input of radio and television Play System, and television monitoring unit is also connected with control unit；
Described television monitoring unit includes TV distributor, at least one television receiver, signal adapter and Video service
Device, the signal input of TV distributor is connected with the output of antenna element, the signal output and television receiver of TV distributor
Signal input connection, the audio output and video frequency output of television receiver respectively with the audio input and video of video server
Input connection, video server is also connected with control unit carries out data exchange, control signal and the control of signal adapter
The control output end connection of unit, the control output end of signal adapter is connected with the control signal of television receiver；
Described control unit includes signal processing module, discrimination module and host computer, and the input of signal processing module passes through net
Mouthful A is connected with the output of video server, and the output of signal processing module is connected with the input of judge module, judge module it is defeated
Go out and be connected with host computer, host computer is connected respectively with video server and signal adapter；
The monitoring method of broadcast television monitoring system is comprised the following steps：
S1. antenna element receives broadcast television signal, and broadcast television signal is input into respectively each TV by TV distributor
Receiver；
S2. each television receiver is demodulated respectively to broadcast television signal, then respectively by the broadcast television signal after demodulation
Input video server；
S3. video server is recorded a video and is recorded to the broadcast television signal being input into, and forms independent disk audio-video document,
And by broadcast television signal input signal processing module；
S4. signal processing module extracts the vertical synchronizing signal in the broadcast television signal of input, by broadcast television signal time delay,
Then broadcast television signal and vertical synchronizing signal are carried out into "AND" process, and "AND" result is input into into judge module；Sentence
Disconnected module is judged the "AND" result being input into, if result is a straight line, is judged as being disturbed without illegal signals；If result
For a series of pulse signals, then it is judged as there are illegal signals to disturb and report to the police, so as to realize the monitor in real time to program.
2. a kind of broadcast television monitoring system according to claim 1, it is characterised in that：Described television receiver includes
The combination of one or more in analog television receiver and digital television receiver.
3. a kind of broadcast television monitoring system according to claim 1, it is characterised in that：Described television monitoring unit bag
Network interface A and network interface B is included, described video server is connected by network interface A with control unit, described signal adapter passes through net
Mouth B is connected with control unit.
4. a kind of broadcast television monitoring system according to claim 1, it is characterised in that：It also includes display unit, institute
The display unit stated is connected by VGA video interfaces with video server.
5. a kind of broadcast television monitoring system according to claim 2, it is characterised in that：Described digital television receiver
For CMMB receivers, described signal adapter turns network interface module for IO.
6. a kind of broadcast television monitoring system according to claim 1, it is characterised in that：Described signal processing module bag
Signal separator submodule, signal lag submodule and signal comparison sub-module are included, the input of Signal separator submodule passes through network interface A
It is connected with the output of video server, the output of Signal separator submodule is divided into two-way, respectively with signal lag submodule and letter
The input connection of number comparison sub-module, the output of signal lag submodule is connected with the input of signal comparison sub-module, signal ratio
It is connected with the input of judge module compared with the output of submodule.
7. a kind of broadcast television monitoring system according to claim 1, it is characterised in that：Described judge module includes place
Reason device submodule, decoding submodule, trigger submodule and buffer sublayer module, the input of trigger submodule compares sub with signal
The output connection of module, the output of trigger submodule is connected with the input of buffering submodule, buffers submodule with decoding submodule
Block connects, and decoding submodule is connected with processor submodule, and the controlled output of processor submodule compares submodule with signal respectively
The control input connection of block and buffer sublayer module, the output of processor submodule is connected with host computer.
8. a kind of broadcast television monitoring method, it is characterised in that：It is comprised the following steps：
S1. antenna element receives broadcast television signal, and broadcast television signal is input into respectively each TV by TV distributor
Receiver；
S2. each television receiver is demodulated respectively to broadcast television signal, then respectively by the broadcast television signal after demodulation
Input video server；
S3. video server is recorded a video and is recorded to the broadcast television signal being input into, and forms independent disk audio-video document,
And by broadcast television signal input signal processing module；
S4. signal processing module extracts the vertical synchronizing signal in the broadcast television signal of input, by broadcast television signal time delay,
Then broadcast television signal and vertical synchronizing signal are carried out into "AND" process, and "AND" result is input into into judge module；Sentence
Disconnected module is judged the "AND" result being input into, if result is a straight line, is judged as being disturbed without illegal signals；If result
For a series of pulse signals, then it is judged as there are illegal signals to disturb and report to the police, so as to realize the monitor in real time to program.
9. a kind of broadcast television monitoring method according to claim 8, it is characterised in that：Described step S2 includes following
Sub-step：
S21. the channel to be monitored of upper computer selecting, sends the network signal comprising channel information to signal adapter；
S22. the network signal of input is switched to I/O signal by signal adapter, and I/O signal is input into into each television receiver；
S23. the channel information in the I/O signal of each television receiver difference identified input, selects the demodulation channel of itself；
S24. each television receiver is demodulated respectively to broadcast television signal, then respectively by the broadcast television signal after demodulation
Input video server.
10. a kind of broadcast television monitoring method according to claim 8, it is characterised in that：Described step S4 include with
Lower sub-step：
S41. the video vertical that Signal separator submodule is extracted in the broadcast television signal that video signal preprocessor is sended over is same
Step signal, is then input into comparison sub-module, by video vertical synchronization signal input time delay submodule by broadcast television signal；
S42. time delay submodule carries out delay process to the video vertical synchronization signal being input into, then by video vertical synchronization signal
Input comparison sub-module；
S43. comparison sub-module carries out "AND" process to the broadcast television signal and video vertical signal of input, and result is input into
Judge module；
S44. trigger submodule receives the "AND" result that comparison sub-module sends, if "AND" result is one straight
Line, then trigger submodule do not activate, its output end is set to low level；If "AND" result is a series of pulse signals, trigger
The device submodule activation of block, its output end is set to high level, and by high level input buffering submodule；
S45. processor submodule opens buffering submodule and obtains data by hardware address, determines whether illegal signals interference,
If low level, then it is judged as being disturbed without illegal signals；If high level is then judged as having illegal signals to disturb, and to host computer
Alarm code is sent, makes host computer report to the police, then will be closed after buffering submodule clearing.
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| CN105871482B (en) * | 2016-05-27 | 2018-08-17 | 西华大学 | A kind of monitoring method of fm broadcast signal |
| CN110324675A (en) * | 2019-06-26 | 2019-10-11 | 航天恒星科技有限公司 | The method and apparatus that signal quality monitoring is carried out to satellite broadcasting television system |
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