CN105120340B - ATSC TV programme real-time play fail analysis device - Google Patents
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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
- H04N21/4425—Monitoring of client processing errors or hardware failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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Abstract
The present invention relates to a kind of ATSC TV programme real-time play fail analysis device, including: the first signal-quality detector, secondary signal mass dete ctor, 3rd signal-quality detector and alarm signal managing device, first signal-quality detector, secondary signal mass dete ctor, 3rd signal-quality detector ATSC digital TV broadcast signal to receiving carries out channel level respectively, the signal content quality testing of information source level and display level also sends alarm signal when there is abnormal signal situation, alarm signal managing device connects described three signal-quality detectors respectively to receive alarm signal and to show the alarm content that described alarm signal is corresponding.By means of the invention it is possible to the ATSC digital TV broadcast signal that television station to be broadcasted carries out omnibearing signal content detection, thus helping television station staff quickly position fault and fix a breakdown, ensure the quality of TV you institute broadcast singal.
Description
The present invention is application number is 201310229093.0, the applying date be June 8, denomination of invention in 2013 is the divisional application of the patent of " ATSC TV programme real-time play fail analysis device ".
Technical field
The present invention relates to program failure analysis field, particularly relate to a kind of ATSC TV programme real-time play fail analysis device.
Background technology
ATSC standard is one of existing two big digital television transfer standards, and another standard is the DVB DVB standard in Europe.The English full name of ATSC is AdvancedTelevisionSystemsCommittee (U.S.Advanced Television management consultant committee).This committee formally passes through ATSC DTV national standard on 15th in nineteen ninety-five JIUYUE.ATSC message sink coding adopts MPEG-2 video compress and AC-3 audio compression；Chnnel coding adopts VSB modulation, it is provided that both of which: terrestrial broadcasting pattern (8VSB) and High Data Rate pattern (16VSB).ATSC standard is widely used, especially in the countries and regions in North America.
But, when going wrong due to digital television signal, because it is many to play program, transmission link is complicated and is not easy to rapidly find out guilty culprit, particularly with the digital television signal of ATSC standard.Therefore, at the TV you of playing digital television signal, it is necessary to install a TV programme real-time play fail analysis device to carry out location and the quick solution in time of problem.Existing ATSC TV programme real-time play fail analysis device simple in construction, function singleness, often simply installation detecting device in some link of signal transmission, be analyzed intercepting code stream, and the analysis result referential so obtained is poor.
Therefore, for playing the television station of ATSC standard digital television signal, need a kind of ATSC TV programme real-time play fail analysis device, transform original simple real-time play fail analysis device, adopt too many levels graduate detection pattern that signal content is detected, namely different signal quality detecting devices is set in multiple links of signal transmission, and detected item is carried out grade classification management, in order to television station attendant quickly searches problem place carry out failture evacuation.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of ATSC TV programme real-time play fail analysis device, it is introduced in three unlike signal quality detection devices that channel receiving terminal, signal source receiving end and display end are installed, different signal contents is carried out the detection of disparity items, and the operation according to user selects to be detected the grade of item and detected item, problem is carried out quickly location and graduation management, improves the detection efficiency of ATSC standard digital television program signal.
According to an aspect of the present invention, provide a kind of ATSC TV programme real-time play fail analysis device, including the first signal-quality detector, secondary signal mass dete ctor, 3rd signal-quality detector and alarm signal managing device, first signal-quality detector, secondary signal mass dete ctor, 3rd signal-quality detector ATSC digital TV broadcast signal to receiving carries out channel level respectively, the signal content quality testing of information source level and display level also sends alarm signal when there is abnormal signal situation, alarm signal managing device connects the first signal-quality detector respectively, secondary signal mass dete ctor, 3rd signal-quality detector is to receive alarm signal and to show the alarm content that described alarm signal is corresponding.
More specifically, described ATSC TV programme real-time play fail analysis device farther includes: ATSC tuner, the ATSC digital TV broadcast signal received is become intermediate frequency, filtering, amplification, analog digital conversion operation；Demodulator, connect described ATSC tuner, the signal of described ATSC tuner output is carried out that carrier lock and synchronous detecting, NTSC interference filter, channel equalization, Phase Tracking, trellis decodes, deinterleave, RS decodes and data are gone at random, output transport stream TS flows, and described TS stream has the MPEG-2 frame structure of 188 bytes；First signal-quality detector, connect described demodulator to receive the TS stream of described demodulator output, and the TS stream that described demodulator exported carries out the detection of the bit error rate, carrier-to-noise ratio and signal power, when the bit error rate, carrier-to-noise ratio or signal power detected value not within the predefined range time, sending the first alarm signal, described first alarm signal includes the abnormal detected item of appearance, is detected the currency of item and the preset range of detected item；Deplexing apparatus, connect demodulator to receive the TS stream of demodulator output, and demultiplex to obtain voice data TS stream to the TS stream of demodulator output, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT, voice data TS flows, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT has different PID Packet Identifier PID, described PID is used to as the identifier of different types of data bag distribution different value in TS stream, described additional data includes the data of independent data service, also include and described audio content, the data that described video content is relevant；Secondary signal mass dete ctor, connect described Deplexing apparatus to receive and to analyze voice data TS stream, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT, with to new program occurs, program disappears, program code check crosses the border, new PID occurs, the situation that PID disappears and PID code stream crosses the border carries out detecting and send the alert signal of Secondary Report, described second alarm signal includes and new program occurs, program disappears, program code check crosses the border, new PID occurs, the alarm content that PID disappears or PID code stream situation about crossing the border is corresponding；Solve TS bag apparatus, connect described Deplexing apparatus to carry out voice data TS stream, video data TS stream, additional data TS stream, Program Association Table PAT, Program Map Table PMT and service describing table SDT solving TS package operation, it is thus achieved that every the compression audio stream of railway digital TV programme, compressing video frequency flow；Audio decoding apparatus, connect described solution TS bag apparatus and carry out audio decoder operation with the compression audio stream to every railway digital TV programme, obtain the voice data of PCM format, the voice data of described PCM format is the binary data sequence directly obtained through analog digital conversion by simulated audio signal, file header that this binary data sequence does not add and end-of-file mark；Video decoder, connects described solution TS bag apparatus and carries out video decoding operation with the compressing video frequency flow that every railway digital TV is decoded, it is thus achieved that the video data of yuv format；Audio and video display device, connects described audio decoding apparatus to receive and to play the voice data of PCM format, connects described video decoder to receive and to play the video data of yuv format；3rd signal-quality detector, connect described audio and video display device and analyze the audio, video data that described audio and video display device is play, with to occurring that the situation that video frozen frame, audio frequency are lost, volume is too high, volume is too low and additional data is abnormal detects and send the 3rd alarm signal, described 3rd alarm signal includes the alarm content corresponding with situation video frozen frame, audio frequency loss occur, volume is too high, volume is too low or additional data is abnormal；Alarm signal managing device, receive user by remote controller or button inputted detection project alternatives order with the project detected according to detection project alternatives command selection, receive user by remote controller or button inputted Program Priority setting command to arrange detection purpose priority according to Program Priority setting command；Described alarm signal managing device connects described first signal-quality detector, described secondary signal mass dete ctor and described 3rd signal-quality detector to be shown on the display of described alarm signal managing device by the alarm content of described first alarm signal, described second alarm signal and described 3rd alarm signal according to the priority graduation being set, and the operation of detection purpose is carried out by described alarm signal managing device over the display；Radio communication device, connects described alarm signal managing device, the alarm content of storage in the database storage unit of described alarm signal managing device to be sent on the mobile phone of broadcaster website or television station operator by cordless communication network；Wherein, audio and video display device receives and plays the video data of yuv format and includes, and receives the video data of yuv format, the video data of yuv format converts the video data of rgb format to play out to；Wherein, described alarm signal managing device also includes rights management unit, database storage unit and data statistics unit, described rights management unit is for carrying out rights management to the user logging in described alarm signal managing device, described database storage unit is for preserving the alarm content of described first alarm signal, described second alarm signal and described 3rd alarm signal that described alarm signal managing device receives, and described data statistics unit connects database storage unit and carries out statistics and analysis with the alarm content that database storage unit is stored.
More specifically, described ATSC TV programme real-time play fail analysis device farther includes: described first signal-quality detector, described secondary signal mass dete ctor and described 3rd signal-quality detector are integrated into a multifunctional signal mass dete ctor.
More specifically, described ATSC TV programme real-time play fail analysis device farther includes: described TS stream is made up of packet header and load, described packet header includes a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and the information of control, described load includes the MPEG-2 data of 184 bytes, described TS flows specifically being distributed as of three other bytes in packet header, 1 transmission error code indication bit position, 1 initial indication bit position of clean data cell, 1 is transmitted priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bits position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
More specifically, described ATSC TV programme real-time play fail analysis device farther includes: described database storage unit generates the data sheet relevant to the alarm content of storage every the scheduled time, and the described scheduled time and report form are set by the user.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
The block diagram of the ATSC TV programme real-time play fail analysis device that Fig. 1 illustrates according to an embodiment of the present invention.
Wherein, the 1, first signal-quality detector；2, secondary signal mass dete ctor；3, the 3rd signal-quality detector；4, alarm signal managing device.
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of the ATSC TV programme real-time play fail analysis device of the present invention is described in detail.
Fig. 1 illustrates the block diagram of the ATSC TV programme real-time play fail analysis device illustrated according to an embodiment of the present invention.Wherein ATSC TV programme real-time play fail analysis device includes, first signal-quality detector 1, secondary signal mass dete ctor 2, 3rd signal-quality detector 3 and alarm signal managing device 4, first signal-quality detector 1, secondary signal mass dete ctor 2, the 3rd signal-quality detector 3 ATSC digital TV broadcast signal to receiving carries out channel level respectively, the signal content quality testing of information source level and display level also sends alarm signal when there is abnormal signal situation, alarm signal managing device 4 connects the first signal-quality detector 1 respectively, secondary signal mass dete ctor 2, 3rd signal-quality detector 3 is to receive alarm signal and to show the alarm content that described alarm signal is corresponding.Further, described ATSC TV programme real-time play fail analysis device also includes, ATSC tuner, and the ATSC digital TV broadcast signal received becomes intermediate frequency, filtering, amplification, analog digital conversion operation；Demodulator, connect described ATSC tuner, the signal of described ATSC tuner output is carried out that carrier lock and synchronous detecting, NTSC interference filter, channel equalization, Phase Tracking, trellis decodes, deinterleave, RS decodes and data are gone at random, output transport stream TS flows, and described TS stream has the MPEG-2 frame structure of 188 bytes；First signal-quality detector 1, connect described demodulator to receive the TS stream of described demodulator output, and the TS stream that described demodulator exported carries out the detection of the bit error rate, carrier-to-noise ratio and signal power, when the bit error rate, carrier-to-noise ratio or signal power detected value not within the predefined range time, sending the first alarm signal, described first alarm signal includes the abnormal detected item of appearance, is detected the currency of item and the preset range of detected item；Deplexing apparatus, connect demodulator to receive the TS stream of demodulator output, and demultiplex to obtain voice data TS stream to the TS stream of demodulator output, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT, voice data TS flows, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT has different PID Packet Identifier PID, described PID is used to as the identifier of different types of data bag distribution different value in TS stream, described additional data includes the data of independent data service, also include and described audio content, the data that described video content is relevant；Secondary signal mass dete ctor 2, connect described Deplexing apparatus to receive and to analyze voice data TS stream, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT, with to new program occurs, program disappears, program code check crosses the border, new PID occurs, the situation that PID disappears and PID code stream crosses the border carries out detecting and send the alert signal of Secondary Report, described second alarm signal includes and new program occurs, program disappears, program code check crosses the border, new PID occurs, the alarm content that PID disappears or PID code stream situation about crossing the border is corresponding；Solve TS bag apparatus, connect described Deplexing apparatus to carry out voice data TS stream, video data TS stream, additional data TS stream, Program Association Table PAT, Program Map Table PMT and service describing table SDT solving TS package operation, it is thus achieved that every the compression audio stream of railway digital TV programme, compressing video frequency flow；Audio decoding apparatus, connect described solution TS bag apparatus and carry out audio decoder operation with the compression audio stream to every railway digital TV programme, obtain the voice data of PCM format, the voice data of described PCM format is the binary data sequence directly obtained through analog digital conversion by simulated audio signal, file header that this binary data sequence does not add and end-of-file mark；Video decoder, connects described solution TS bag apparatus and carries out video decoding operation with the compressing video frequency flow that every railway digital TV is decoded, it is thus achieved that the video data of yuv format；Audio and video display device, connects described audio decoding apparatus to receive and to play the voice data of PCM format, connects described video decoder to receive and to play the video data of yuv format；3rd signal-quality detector 3, connect described audio and video display device and analyze the audio, video data that described audio and video display device is play, with to occurring that the situation that video frozen frame, audio frequency are lost, volume is too high, volume is too low and additional data is abnormal detects and send the 3rd alarm signal, described 3rd alarm signal includes the alarm content corresponding with situation video frozen frame, audio frequency loss occur, volume is too high, volume is too low or additional data is abnormal；Alarm signal managing device, receive user by remote controller or button inputted detection project alternatives order with the project detected according to detection project alternatives command selection, receive user by remote controller or button inputted Program Priority setting command to arrange detection purpose priority according to Program Priority setting command；Described alarm signal managing device 4 connects described first signal-quality detector 1, described secondary signal mass dete ctor 2 and described 3rd signal-quality detector 3 to be shown on the display of described alarm signal managing device 4 by the alarm content of described first alarm signal, described second alarm signal and described 3rd alarm signal according to the priority graduation being set, and the operation of detection purpose is carried out by described alarm signal managing device 4 over the display；Radio communication device, connects described alarm signal managing device 4, the alarm content of storage in the database storage unit of described alarm signal managing device 4 to be sent on the mobile phone of broadcaster website or television station operator by cordless communication network；Wherein, audio and video display device receives and plays the video data of yuv format and includes, and receives the video data of yuv format, the video data of yuv format converts the video data of rgb format to play out to；Wherein, described alarm signal managing device 4 also includes rights management unit, database storage unit and data statistics unit, described rights management unit is for carrying out rights management to the user logging in described alarm signal managing device, described database storage unit is for preserving the alarm content of described first alarm signal, described second alarm signal and described 3rd alarm signal that described alarm signal managing device 4 receives, and described data statistics unit connects database storage unit and carries out statistics and analysis with the alarm content that database storage unit is stored.
Wherein, described radio communication device is GPRS communication module or 3G communication module.GPRS is often described as " 2.5G ", say, that this technology is positioned between the second filial generation (2G) and the third generation (3G) mobile communication technology.He is by utilizing untapped TDMA channel in GSM network, it is provided that the data transmission of middling speed.GPRS breaches GSM net can only provide Circuit-switched mode of thinking, only by increasing corresponding functional entity and existing base station system is carried out part transformation realizing packet switch, the input of this transformation is also little comparatively speaking, but the user data rate obtained is considerable.And, because being no longer necessary to the intermediary's transducer required for existing wireless application, thus connect and transmission all can more convenient easily.So, user both can connect to the internet, and participates in the interactive communication such as video conference, and on same video communication network the user of (VRN), it might even be possible to without passing through to dial up on the telephone, and continue connected to the network.The communication mode of GPRS packet switch is in the communication mode of packet switch, and data are divided into the bag (packet) of certain length, has a packets headers (address mark therein indicates this packet and mails to where) before each bag.Data are not required to allocate in advance channel before transmitting, set up and connect.But when each packet arrives, according to the information (such as destination address) in datagram header, this datagram is sent by one available channel resource of interim searching.In this load mode, the relation that takies unfixing between transmission and recipient's cochannel of data, channel resource can be regarded as to be shared by all of user and uses.3G refers to third generation mobile communication system radio communication being combined with multimedia communications such as Internets, following 3G will combine with community website, the main distinction of 3G and 2G is the lifting in the speed of transmission voice and data, he can realize radio roaming in the world better, and process the media forms such as image, music, video flowing, offer includes the much information services such as web page browsing, videoconference, ecommerce, also to consider and the favorable compatibility of existing second-generation system simultaneously.In order to provide this service, wireless network allows for supporting different data transmission bauds, say, that can support the transmission speed (this numerical value can change according to network environment) of at least 2Mbps (megabit/per second), 384kbps (kilobit/per second) and 144kbps in indoor, the outdoor and environment of driving respectively.
Wherein, the bit error rate (BER:biterrorratio) is to weigh the index of data data at the appointed time transmission accuracy.The gross yards * 100% of the error code in the bit error rate=transmission/transmit.If there being error code just to have the bit error rate.The bit error rate is defined as weighing the frequency that error code occurs it addition, also have.IEEE802.3 standard is the acceptable maximum bit error rate that 1000Base-T network is formulated is 10-10.This bit error rate standard sets, the namely coded system of gigabit Ethernet for pulse-amplitude modulation (PAM-5) coding.
Wherein, in the communications, carrier-to-noise ratio (signal to noise ratio) is used to the canonical measure yardstick indicating carrier wave with charge carrier noise relation, is generally denoted as CNR or C/N (dB).High carrier-to-noise ratio can provide better network acceptance rate, better network communication quality and better network reliability.In carrier-to-noise ratio, the power Pc of carrier wave represents, the power Pn of noise represents.So the decibel units formula of carrier-to-noise ratio is expressed as: C/N=10lg (Pc/Pn) carrier-to-noise ratio yardstick for represent network channel quality similar to signal to noise ratio.But signal to noise ratio generally uses in actual applications.Carrier-to-noise ratio is then in Satellite Communication System.Best antenna alignment can obtain best carrier-to-noise ratio value.
Wherein, frozen frame i.e. common frame, its effect is the reproduction time extending key frame.In FLASH animation, frozen frame be shown as on a timeline light blue or other pre-set color.
It addition, described ATSC TV programme real-time play fail analysis device farther includes: described first signal-quality detector 1, described secondary signal mass dete ctor 2 and described 3rd signal-quality detector 3 are integrated into a multifunctional signal mass dete ctor.Such integration mode can deletion system redundancy, simplied system structure.
Additionally, described ATSC TV programme real-time play fail analysis device farther includes: described TS stream is made up of packet header and load, described packet header includes a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and the information of control, described load includes the MPEG-2 data of 184 bytes, described TS flows specifically being distributed as of three other bytes in packet header, 1 transmission error code indication bit position, 1 initial indication bit position of clean data cell, 1 is transmitted priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bits position, control bit position, 2 self adaptation districts and 4 continuous counter bits.
It addition, described ATSC TV programme real-time play fail analysis device farther includes: described database storage unit generates the data sheet relevant to the alarm content of storage every the scheduled time, and the described scheduled time and report form are set by the user.The help television station staff that uses of form follows the tracks of the state situation of change analyzing object of fail analysis device such that it is able to grasp all kinds of operation informations of fail analysis device in time.
Wherein, form is basic measures and the approach of business administration, is the basic service requirement of enterprise.Form can help accessed enterprise, formatted data, and data message by reliable and safe in the way of present to user.Briefly: form carrys out Dynamic Announce data with the form such as form, chart exactly.Can be formulated as: " form of form=various+dynamic data ".Before not having computer, people utilize paper and pen to record data, such as: the bean curd account usually said among the people, it is simply that the bean curd sold of oneself is remembered on a book by the every day selling bean curd, then monthly will collect calculation and calculate.In this case, report data and statement form are closely linked, all on same book.Data also can only have a kind of accessible form of expression of the talent almost only kept accounts, and this form is difficult to revise.
Adopt the ATSC TV programme real-time play fail analysis device of the present invention, by building the fail analysis device of a too many levels, graduate ATSC standard digital television signal, form a set of effective real-time play accident analysis pattern, at the broadcast room place of television station, signaling channel level, information source level and display level are implemented omnibearing accident analysis, improve accuracy and the promptness of signal fault detection, thus having ensured that satellite digital television signal safety in satellite television playing network is play.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described embodiment is not limited to the present invention.For any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above and technical solution of the present invention is made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the scope of technical solution of the present invention protection.
Claims (1)
1. an ATSC TV programme real-time play fail analysis device, it is characterised in that described fail analysis device includes:
First signal-quality detector, secondary signal mass dete ctor, 3rd signal-quality detector and alarm signal managing device, first signal-quality detector, secondary signal mass dete ctor, 3rd signal-quality detector ATSC digital TV broadcast signal to receiving carries out channel level respectively, the signal content quality testing of information source level and display level also sends alarm signal when there is abnormal signal situation, alarm signal managing device connects the first signal-quality detector respectively, secondary signal mass dete ctor, 3rd signal-quality detector is to receive alarm signal and to show the alarm content that described alarm signal is corresponding；
Also include:
ATSC tuner, becomes intermediate frequency, filtering, amplification, analog digital conversion operation to the ATSC digital TV broadcast signal received；
Demodulator, connect described ATSC tuner, the signal of described ATSC tuner output is carried out that carrier lock and synchronous detecting, NTSC interference filter, channel equalization, Phase Tracking, trellis decodes, deinterleave, RS decodes and data are gone at random, output transport stream TS flows, and described TS stream has the MPEG-2 frame structure of 188 bytes；
Described first signal-quality detector connects described demodulator to receive the TS stream of described demodulator output, and the TS stream that described demodulator exported carries out the detection of the bit error rate, carrier-to-noise ratio and signal power, when the bit error rate, carrier-to-noise ratio or signal power detected value not within the predefined range time, sending the first alarm signal, described first alarm signal includes the abnormal detected item of appearance, is detected the currency of item and the preset range of detected item；
Deplexing apparatus, connect demodulator to receive the TS stream of demodulator output, and demultiplex to obtain voice data TS stream to the TS stream of demodulator output, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT, voice data TS flows, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT has different PID Packet Identifier PID, described PID is used to as the identifier of different types of data bag distribution different value in TS stream, described additional data includes the data of independent data service, also include and described audio content, the data that described video content is relevant；
Described secondary signal mass dete ctor connects described Deplexing apparatus to receive and to analyze voice data TS stream, video data TS flows, additional data TS flows, Program Association Table PAT, Program Map Table PMT and service describing table SDT, with to new program occurs, program disappears, program code check crosses the border, new PID occurs, the situation that PID disappears and PID code stream crosses the border carries out detecting and send the alert signal of Secondary Report, described second alarm signal includes and new program occurs, program disappears, program code check crosses the border, new PID occurs, the alarm content that PID disappears or PID code stream situation about crossing the border is corresponding；
Solve TS bag apparatus, connect described Deplexing apparatus to carry out voice data TS stream, video data TS stream, additional data TS stream, Program Association Table PAT, Program Map Table PMT and service describing table SDT solving TS package operation, it is thus achieved that every the compression audio stream of railway digital TV programme, compressing video frequency flow；
Audio decoding apparatus, connect described solution TS bag apparatus and carry out audio decoder operation with the compression audio stream to every railway digital TV programme, obtain the voice data of PCM format, the voice data of described PCM format is the binary data sequence directly obtained through analog digital conversion by simulated audio signal, file header that this binary data sequence does not add and end-of-file mark；
Video decoder, connects described solution TS bag apparatus and carries out video decoding operation with the compressing video frequency flow that every railway digital TV is decoded, it is thus achieved that the video data of yuv format；
Audio and video display device, connects described audio decoding apparatus to receive and to play the voice data of PCM format, connects described video decoder to receive and to play the video data of yuv format；
Described 3rd signal-quality detector connects described audio and video display device and analyzes the audio, video data that described audio and video display device is play, with to occurring that the situation that video frozen frame, audio frequency are lost, volume is too high, volume is too low and additional data is abnormal detects and send the 3rd alarm signal, described 3rd alarm signal includes the alarm content corresponding with situation video frozen frame, audio frequency loss occur, volume is too high, volume is too low or additional data is abnormal；
Described alarm signal managing device receives user by remote controller or button inputted detection project alternatives order with the project detected according to detection project alternatives command selection, receives user by remote controller or button inputted Program Priority setting command to arrange detection purpose priority according to Program Priority setting command；Described alarm signal managing device connects described first signal-quality detector, described secondary signal mass dete ctor and described 3rd signal-quality detector to be shown on the display of described alarm signal managing device by the alarm content of described first alarm signal, described second alarm signal and described 3rd alarm signal according to the priority graduation being set, and the operation of detection purpose is carried out by described alarm signal managing device over the display；
Radio communication device, connects described alarm signal managing device, the alarm content of storage in the database storage unit of described alarm signal managing device to be sent on the mobile phone of broadcaster website or television station operator by cordless communication network；
Wherein, audio and video display device receives and plays the video data of yuv format and includes, and receives the video data of yuv format, the video data of yuv format converts the video data of rgb format to play out to；
Wherein, described alarm signal managing device also includes rights management unit, database storage unit and data statistics unit, described rights management unit is for carrying out rights management to the user logging in described alarm signal managing device, described database storage unit is for preserving the alarm content of described first alarm signal, described second alarm signal and described 3rd alarm signal that described alarm signal managing device receives, and described data statistics unit connects database storage unit and carries out statistics and analysis with the alarm content that database storage unit is stored；
Described first signal-quality detector, described secondary signal mass dete ctor and described 3rd signal-quality detector are integrated into a multifunctional signal mass dete ctor；
Described TS stream is made up of packet header and load, described packet header includes a sync byte SYNC1 and three other bytes, described three other bytes are used for traffic identification, scrambling and the information of control, described load includes the MPEG-2 data of 184 bytes, described TS flows specifically being distributed as of three other bytes in packet header, 1 transmission error code indication bit position, 1 initial indication bit position of clean data cell, 1 is transmitted priority bit position, 13 bag identifier PID bits, 2 are transmitted scrambling control bits position, control bit position, 2 self adaptation districts and 4 continuous counter bits；
Described database storage unit generates the data sheet relevant to the alarm content of storage every the scheduled time, and the described scheduled time and report form are set by the user.
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| CN201510649386.3A CN105120340B (en) | 2013-06-08 | 2013-06-08 | ATSC TV programme real-time play fail analysis device |
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| CN201310229093.0A CN103327402B (en) | 2013-06-08 | 2013-06-08 | ATSC Television programme real-time play fail analysis device |
| CN201510649386.3A CN105120340B (en) | 2013-06-08 | 2013-06-08 | ATSC TV programme real-time play fail analysis device |
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| CN104378630A (en) * | 2014-12-12 | 2015-02-25 | 国家电网公司 | Audio/video quality analysis system of videoconferencing television |
| CN105898293A (en) * | 2015-12-15 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Locating method and device for video display abnormity |
| CN105898555A (en) * | 2015-12-28 | 2016-08-24 | 乐视致新电子科技（天津）有限公司 | Audio abnormity positioning method and device |
| CN107835060B (en) * | 2017-11-30 | 2024-04-16 | 安徽汇鑫电子有限公司 | Embedded unmanned DTMB signal detection equipment |
| CN108933938A (en) * | 2018-08-23 | 2018-12-04 | 北京奇艺世纪科技有限公司 | A kind of video quality method of inspection, device and electronic equipment |
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| WO1998027681A2 (en) * | 1996-12-18 | 1998-06-25 | Koninklijke Philips Electronics N.V. | Transmission system and recording system having a simplified symbol detector |
| CN1782984A (en) * | 2004-11-30 | 2006-06-07 | 北京中科大洋科技发展股份有限公司 | Multiple picture frame splitting system |
| CN101296337A (en) * | 2008-06-02 | 2008-10-29 | 北京数码视讯科技股份有限公司 | Digital television receiving system |
| CN101521549A (en) * | 2008-12-22 | 2009-09-02 | 赵照 | Digital television monitoring method based on multiplex multimedia gateway |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100375508C (en) * | 2004-12-11 | 2008-03-12 | 陈小平 | Automatic anti-interference satellite digital broadcast television receiver |
| KR20090128035A (en) * | 2008-06-10 | 2009-12-15 | 이동준 | Method for monitoring and sensing broadcasting error using image processing techniques |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998027681A2 (en) * | 1996-12-18 | 1998-06-25 | Koninklijke Philips Electronics N.V. | Transmission system and recording system having a simplified symbol detector |
| CN1782984A (en) * | 2004-11-30 | 2006-06-07 | 北京中科大洋科技发展股份有限公司 | Multiple picture frame splitting system |
| CN101296337A (en) * | 2008-06-02 | 2008-10-29 | 北京数码视讯科技股份有限公司 | Digital television receiving system |
| CN101521549A (en) * | 2008-12-22 | 2009-09-02 | 赵照 | Digital television monitoring method based on multiplex multimedia gateway |
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| CN103327402A (en) | 2013-09-25 |
| CN103327402B (en) | 2016-06-15 |
| CN105120340A (en) | 2015-12-02 |
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