CN1395425A

CN1395425A - Analogue, digital, network broadcast television program monitoring and controlling system and its implement method

Info

Publication number: CN1395425A
Application number: CN02138092A
Authority: CN
Inventors: 顾士平; 吴军基
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-09
Filing date: 2002-08-09
Publication date: 2003-02-05

Abstract

The invention relates to the method for realizing the system of monitoring the analog, digital and networked broadcast television programs. The cryptographic information is hidden in the retrace channel of the analog TV. The cryptographin information is hidden in the packet of the digital TV. The cryptographic information is hidden in the packet of the networked TV. In each mode, the cryptographic information is hidden in images. The decoding and comparing operatinos are carried out at the monitoring end. It is alarmed for the cases of the incorrect cipher or no cipher. The illegal TV signal is disconnected or filtered out according to the preset. The dynamic cipher is supported in the system. The system not only monitors the incursion of the illegal TV signal, but also providing the functions of the quality monitoring, the fault alarming and locating.

Description

Simulation, numeral, network broadcast television program monitoring and controlling system and its implementation method

One, affiliated field

The present invention relates to a kind of television program transmission, channel operating position, have or not the supervisory control system of illegal TV programme signal.

Two, background technology

Present television system has following shortcoming: (1) now TV signal utilize wireless, copper cable, optical cable transmission, satellite transmits.The lawless person adopts signal loading on these communication channels, propagates reactionism, instigates destruction; As nearest Falun Gong, just invade normal satellite TV signal and cable TV signal and carry out the reaction propaganda.(2) present television system does not have effective supervisory control system, working condition that can't video supervisory system.The needs that can not adapt to following TV development.

Three, summary of the invention

The present invention is directed to above deficiency, providing a kind of can realize: (1) is monitored illegal TV signal; (2) idle channels is monitored; (3) TV network service quality is monitored; (4) utilize native system can in time find fault, and fault is positioned.

The TV programme supervisory control system adopts following implementation to realize:

In the simulated television system, adopt the part-time of television line flyback to transmit hiding password, when receiving TV programme, each control point decodes, if the password or the password bad of no standard in the programme signal of finding to receive, this acceptance point will utilize wireless channel (as, radio communications such as gsm communication channel, satellite channel, trunking communication, bluetooth) or wire message way (optical fiber, copper cable, CABLE Modern) to send alarm signal.

In digital television system, adopt adding password in the compressed data packet, or utilize timesharing between compression data packet, to add password.By the warning of decoding of each control point.

In network television system, in the Web TV packet, add password, monitor, pinpoint the problems and send the processing of reporting to the police back to by network by each control point.Operation principle:

Simulated television system: encrypted message is hidden in the flyback row of tv line, the information of hiding is decoded, differentiate the legitimacy of TV, illegal TV signal is reported to the police by the control point; Trace scan-data to simulated television is analyzed, and differentiates in the idle channels to have or not illegal TV signal.

Digital television system: hide encrypted message in the digital picture bag to compression or before image compression, encrypted message is hidden in the image and compress processing by compression chip, decode in each control point, compare to determine, if any illegal TV signal, each control point is back to Surveillance center with alarm signal.

Network television system: password is hidden in the TV network packet, unpacks processing by each control point, by illegal TV signal is arranged, each control point is back to Surveillance center with alarm signal.

In above 3 kinds of systems, all can adopt, utilize human eye that encrypted message is hidden in modulation in the insensitivity carrier chrominance signal of image, the information of hiding be decoded, differentiate the legitimacy of TV, illegal TV signal is reported to the police, controlled by the control point.

Each is realized that signal to the television system that trespasses cuts off illegal TV can not be propagated to utilize monitoring module in various television systems; Or utilize band pass filter that illegal TV signal is absorbed, make it to continue transmission.

Four, description of drawings

Be described further below in conjunction with accompanying drawing:

Fig. 1, the TV monitor system system diagram.

Fig. 2, simulated television supervisory control system control point theory diagram.

Fig. 3, digital TV monitor system control point theory diagram.

Fig. 4, network TV monitoring system control point theory diagram.

Fig. 5, the TV of various patterns hide code signal control point theory diagram in image.

Fig. 6, the control point utilizes video switch to cut off all TV signal in downstream.

Fig. 7 utilizes the signal filtering of band pass filter with illegal channel, with illegal TV signal filtering,

Other TV signal normal play.

Fig. 8, Surveillance center's theory diagram.

Five, embodiment

With reference to shown in Figure 1, the system block diagram of simulation, numeral, network broadcast television program monitoring and controlling system and its implementation method, system is by 11 Surveillance center, 13 TV signal transmission channels, 12 control points, 14 down channels etc. are partly formed.The hiding signal that Surveillance center sends is after the control point decoding, comparing, handle, the generation alarm signal is sent to Surveillance center by wireless channel and reports to the police, and the generation control signal, cut off downstream television signals or illegal TV signal is utilized the band pass filter filtering.

Fig. 2, simulated television supervisory control system control point theory diagram.The control point is by 21 tv signal inputs; 22 tuners, timesharing is with the image output of each channel; 23 image A D transducers, the chip of the SAA71 series of TW98, TW99 family chip or the Philips company of employing Tech well company or the AD chip of AD company are changed, with image signal transformation is digital signal, and the encrypted message of hiding in the image is taken out sending processor handle; 24 processing units, utilize processor as, X86, ARM, PowerPC or single-chip microcomputer are handled, decoding, relatively, control; 25 communication units utilize gsm communication module or cable modem or radio channel, broadband networks passage and Surveillance center to communicate; 26 control units, the fault order of receiving processor disconnects or Filtering Processing.Illegal TV signal can not be transmitted.

Fig. 3, digital TV monitor system control point theory diagram.The method that adopts hiding code data to pack with the image data packets of compression in the digital television system realizes the transmission of concealed encrypted data.31 is digital television signal; 32 television decoding chip are with digital TV decoding; 33 for implicit code data extracts circuit, and the implicit code data of being responsible for decoding extracts for lower unit to be handled; 34 processing units are handled the legitimacy that implies data, handle according to legitimacy; 35 communication units utilize wired, wireless mode that alarm signal is sent to Surveillance center; 36 control circuits, the signal that the reception processing unit is sent here is controlled and is cut off or bandpass filtering.

Fig. 4, network TV monitoring system control point theory diagram.41 Web TV signal network passages, the transmission network image data packets; 42 Web TV processors carry out the network packetization of Web TV, and decompress(ion) reduces TV signal, and send implicit packet to next stage; 43 with the implicit packet extraction in the Web TV packet; 44 processing units are handled by the agreement of system password system, send communication unit with alarm signal, and control signal send control unit to handle; 45 communications processor elements with the bilateral network of alarm signal SCN Space Cable Network TV, are sent to Surveillance center through the network of Web TV; 46 control units when having illegal TV signal to invade, cut off network, and illegal TV can not be propagated.Or the corresponding illegal Web TV packet of filtration.

Fig. 5, the TV of various patterns hide code signal control point theory diagram in image.Because human eye is insensitive to the colourity of image, implicit code data is analyzed in the data extraction process that monitoring client utilizes specialized circuitry will lie in the image chroma in chroma data, and this method is difficult to analyze to the human eye that influences of image; 510 anolog TV signals generate data-signal through the conversion of 511 analog images; Digital television signal in same 520 is changed through 521 digital pictures; Web TV image in 530 is through the processing of 531 Web TV image converters; Utilize 54 to handle, extract useful hiding code data; 55 handle transmission of control signals with the code data of hiding and alarm signal is handled for next stage; 56 communication modules are sent to Surveillance center with alarm signal; 57 control modules limit the transmission of illegal TV signal by placement algorithm.

Fig. 6, the control point utilizes video switch to cut off all TV signal in downstream.Utilize simple video switch to come the transmission of control of video signal.

Fig. 7 utilizes the signal filtering of band pass filter with illegal channel, with illegal TV signal filtering, and other TV signal normal play.Utilize the frequency spectrum of the illegal TV signal of processor acquisition, the band pass filter dynamic modulation to correspondent frequency, is arrived illegal TV signal filtering, can not continue transmission.

Fig. 8, Surveillance center's theory diagram.Data in TV signal that 801 TV signal players produce and the 804 hiding code signal generators are hidden through 802 and are handled, and formation blended data bag sends through 803 TV signal transmitter and is sent to each user or control point by wireless or cable TV channel.

The standard information of hiding is sent 805 monitoring processing unit processes, and 807 receive the data that each control point is sent here; 806 handle various alert datas, and with the data 805 of standard in receive 804 in standard information compare affirmation, produce alarm signal and send 808 to handle, control signal can be sent 809 modules transmit control signal simultaneously, 810 pairs of control point transmitting control commands.

The method that the control point is sent control has two kinds: 1, the direct controlling object of the configuration information that utilizes Surveillance center to send in the hiding data bag (need not Surveillance center appoints really); 2, the alert data newspaper is sent to Surveillance center, the affirmation through Surveillance center, the corresponding operation of control again.

Claims

1, a kind of simulation, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: utilize in the TV signal that sends, to add and detect password, receiving terminal does not receive password or is incorrect behind the password, receiving terminal will be reported to the police, control and treatment, and alarm signal is sent to send Surveillance center to report to the police; Utilize native system also can realize malfunction monitoring to TV network, fault location is monitored the broadcast quality of TV.

2, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: utilize in the flyback row in the simulated television system to add password, monitor at monitoring client, if password bad or do not have password, system reports to the police, and illegal signals disconnected or utilizes the band pass filter filtering.And the position of report warning, show for Surveillance center.

3, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: utilize the capable signal of the normal television scanning of simulated television trace, differentiate this channel and whether use, thereby determined whether that the people illegally utilizes empty frequency range to broadcast in this area.

4, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: utilize the insensitivity of human eye in simulation, numeral, the Web TV image, in picture signal, hide warning message, be sent to the monitoring of decoding of each control point.

5, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: utilize to add encrypted message in the digital television system, in monitoring client monitoring, report to the police and illegal signals disconnected or utilize the band pass filter filtering.

6, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: in network television system, utilize and add encrypted message in the image packets, but decode by the control point, if by illegal TV signal, reporting to the police in the control point, and can cut off automatically or the illegal TV signal of filtering.

7, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: utilize Surveillance center not only can send hiding password automatically, and the dynamic channel that can transmit in the television system utilizes situation, dynamic password, the control point can be upgraded in time, control.

8, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method is characterized in that: communication channel can be utilized cable modem, GSM public correspondence equipment, broadband networks, wireless network.

9, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method is characterized in that: this supervisory control system realizes the quality-monitoring to cable television system, fault alarm, fault location.

10, simulation according to claim 1, numeral, network broadcast television program monitoring and controlling system and its implementation method, it is characterized in that: utilize the carrier chrominance signal of image to load concealed encrypted data, influence to image is very little, because view data is very big, finds out hiding data and be difficult to.Cipher Strength is very high.