CN101404782A - Digital television receiver, television signal quality collection system and method - Google Patents
Digital television receiver, television signal quality collection system and method Download PDFInfo
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- CN101404782A CN101404782A CNA2008102175378A CN200810217537A CN101404782A CN 101404782 A CN101404782 A CN 101404782A CN A2008102175378 A CNA2008102175378 A CN A2008102175378A CN 200810217537 A CN200810217537 A CN 200810217537A CN 101404782 A CN101404782 A CN 101404782A
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Abstract
The invention discloses a quality acquisition system of a television signal, which comprises that a plurality of digital television receivers of a broadcast television network are switched in; the quality information of a signal of the current working frequency is calculated respectively by reading numerical value of a register in a demodulator included by the system; a front-end server of the broadcast television network is switched in; the signal quality information obtained by calculation of the digital television receivers are gathered and the application treatment is carried out. The invention also discloses a quality acquisition method of the television signal and the digital television receiver. The invention provides basic data for cable television network transformation and maintenance, reduces maintenance cost of a broadcast television network operator, does not need to additionally consume system resources of the digital television receivers, and also does not need to increase any hardware cost. The invention has the advantage of easy realization and can be widely applied in various types of digital television receivers.
Description
Technical field
The present invention relates to broadcast television signal collection and treatment technology, especially relate to a kind of television signal quality collection system and method for gathering the video parameter information of each digital television receiver automatically, and the digital television receiver of supporting this method.
Background technology
Development along with China's digital television techniques, the business that realizes by cable TV network also becomes increasingly abundant, and support these professional most basic hardware conditions is exactly good cable TV network, and the cable TV network quality directly is reflected on the network signal quality of user terminal access point.
The maintenance of current cable network mainly is by user feedback, search platform such as user feedback and receive complete, video mosaic or the like problem, attendant by cable TV network operator carries various testers and user's house calls by appointment, comes the investigation problem and deals with problems by the test video quality.A kind of passive processing method of this method need expend a large amount of man power and materials.
Therefore, how a kind of method of gathering each user terminal network signal quality automatically is provided, and safeguard for cable TV network and terminal is safeguarded basic data is provided based on these data, reduce the maintenance cost of operator, become one of technical barrier of present urgent need solution.
Summary of the invention
The objective of the invention is to propose a kind of television signal quality collection system and method, and the digital television receiver of supporting this method, to solve the technical problem of the video quality that present television network broadcast can't effectively know digital television receiver and received.
For solving technical problem of the present invention, the present invention discloses a kind of television signal quality collection system, it comprises: insert a plurality of digital television receivers of television network broadcast, by reading the numerical value of register in it demodulator that comprises, calculate the signal quality information of current working frequency respectively; Insert the front-end server of television network broadcast, collect digital television receiver and calculate the signal quality information that obtains and use processing.
More excellent, described front-end server comprises at least: control unit; The communication unit of communicating by letter with digital television receiver by television network broadcast; And the application processing unit of signal quality information being done to use processing.
In addition, the present invention also discloses a kind of digital television receiver, and it comprises: the receiving element of received television signal; TV signal is made the demodulator of demodulation process; Audio/video decoding unit and audio frequency and video output unit; It is characterized in that, also comprise: be used for calculating the signal quality collecting unit of the signal quality information of current working frequency by reading the numerical value of the demodulator register that digital television receiver comprises.
Wherein, described signal quality collecting unit comprises: the receiving element of the TV signal that the reception television network broadcast issues; TV signal is carried out the demodulator of demodulation process; Audio/video decoding unit and audio frequency and video output unit; Be used for reading the register value of reflection current working frequency signal message, calculate the signal quality collecting unit of the signal quality information of current working frequency from demodulator.Wherein, described signal quality collecting unit comprises: the frequency point information collection module is used for reading the register value that reflects the current working frequency signal message from demodulator; The signal quality computing module is used for calculating according to register value the signal quality information of current working frequency; Interface module is used for transferring to front-end server or exporting other external equipments to by television network broadcast with the mode that initiatively reports or the reply beacon information with signal quality information and digital television receiver.
More excellent, the numerical value in the described register is to make up acquisition by following one or more modes:
The user makes the frequency handover operation, and digital television receiver is done to obtain in the locking frequency point processing procedure;
When newly being installed, digital television receiver carries out obtaining in the process of full frequency band search;
Issue program updating instruction by front-end server, the user responds in the process that update instruction control figure full frequency band that television receiver carries out searches for and obtains;
Issue signal testing instruction by front-end server, Digital Television receives this test instruction of response and obtains in the process of TV programme signal of specific frequency and obtain.
Wherein, described signal quality information comprises signal strength signal intensity, signal to noise ratio, the error rate or planisphere at least; Described beacon information comprises sequence number, CA card number, IP address or MAC Address.
Moreover the present invention also discloses a kind of video quality acquisition method, and it comprises step: digital television receiver receives the TV signal that television network broadcast issues, and by demodulator TV signal is carried out demodulation process; Read the register value that reflects the current working frequency signal message from demodulator, calculate the signal quality information of current working frequency.
More excellent, described video quality acquisition method also comprises step: digital television receiver transfers to front-end server with the beacon information of signal quality information and digital television receiver by television network broadcast in the mode that initiatively reports or reply; By front-end server signal quality information is used processing according to pre-conditioned work.
More excellent, described application is handled and is comprised:
The signal quality information of gathering is set alarming line or fault level and prompting, and comprising: signal strength signal intensity is lower than alarming line, then points out digital television receiver to work; Signal to noise ratio is lower than alarming line and then points out the circuit of digital television receiver received television signal to have interference; Signal strength signal intensity is lower than the multiplication factor that alarming line is then pointed out needs raising TV signal to be made the amplifier of processing and amplifying; The error rate is higher than alarming line and then points out needs to adjust the various factors of reflected signal quality index;
Self-defined different alarming line parameter generates the statistical report form of signal quality information.
Compared with prior art, the present invention has following beneficial effect:
The present invention gathers the video parameter information of each frequency automatically by each digital television receiver, for catv net reform and maintenance provide basic data, help to reduce the maintenance cost of television network broadcast operator, improve the signal quality of digital television receiver user TV reception.In addition, because the present invention is digital television receiver can obtain this frequency in the frequency locking processing procedure a signal quality information, and need not the system resource of additive decrementation digital television receiver, more need not to increase any hardware cost, therefore, the present invention also has the advantage that makes full use of the digital television receiver internal resource, and realizes simply can being widely used among various types of digital television receivers.
Description of drawings
Fig. 1 is the topological structure schematic diagram of one embodiment of the invention;
Fig. 2 is the structural representation of a preferred embodiment of signal quality collecting unit among Fig. 1.
Embodiment
As shown in Figure 1.In the present embodiment, digital television receiver 10 is that the current comparatively IP digital television receiver of prediction of employing is that example is illustrated.Each digital television receiver 10 is a client terminal, distributes to be used in each different user of geographical position places such as family, hotel and conference centre; Each digital television receiver 10 had both connected IP network and had connected, and connected television network broadcast again; Provide the TV programme signal of each different channel of frequency by the operator of television network broadcast, TV programme signal is imported each digital television receiver 10 into through television network broadcast, thereby provides digital television service for different users.Wherein, television network broadcast comprises digital TV network, cable TV network or terrestrial broadcast television network etc.
Wherein, digital television receiver 10 comprises: from receiving the receiving element 11 of the TV signal that television network broadcast issues; TV signal is carried out the demodulator 12 of demodulation process; To TV signal carry out that audio decoder is handled and the audio/video decoding unit 14 of video decode processing with; Digital audio and video signals and digital signal transmission are given the audio frequency and video output unit 15 of display (such as television set); Be used for reading the register value of reflection current working frequency signal message, calculate the signal quality collecting unit 13 of the signal quality information of current working frequency from demodulator 12.
Certainly, no matter the digital television receiver 10 of which kind of type, its inside all has demodulator 12, and no matter the IC chip of demodulator 12 which kind of type of employing (such as, in the current IP digital television receiver, demodulator 12 general QAM (the Quadrature Amplitude Modulation that adopt, quadrature amplitude modulation) demodulation chip) realizes, because demodulator 12 need carry out frequency locking to current frequency, can carry out demodulation process to the TV signal of this frequency, therefore, the numerical value of the register of demodulator 12 inside can clearly reflect the television signal information of this frequency.Certainly, because there is certain error in indivedual register datas of demodulator 12, so need calibrate by the standard information source, the data after calibration deposit in the relevant register.
In conjunction with shown in Figure 2, described signal quality collecting unit 13 comprises: interface module 131, frequency point information collection module 132 and signal quality computing module 133.Wherein, frequency point information collection module 132 is used for reading from demodulator the register value of reflection current working frequency signal message; Signal quality computing module 133 is used for calculating according to register value the signal quality information of current working frequency.When digital television receiver 10 had bi-directional communication function, it can transfer to front-end server 20 with the beacon information of signal quality information and digital television receiver by television network broadcast by interface module 131; When digital television receiver 10 does not have bi-directional communication function, it can export the beacon information of signal quality information and digital television receiver to particular device by interface module 131, such as, obtain the beacon information of signal quality information and digital television receiver by the attendant by interface module 131, so that the basic data of maintenance to be provided.
Wherein, described signal quality information comprises signal strength signal intensity, signal to noise ratio, the error rate and planisphere at least; Described beacon information comprises information such as sequence number, CA card number, IP address and MAC Address.
Be connected front-end server 20 on the television network broadcast, effect is that each digital television receiver 10 is collected signal quality information from television network broadcast, and signal quality information is made further analytical applications according to pre-set programs.This front-end server 20 comprises: control unit 21; The communication unit 22 of communicating by letter with digital television receiver 10 by television network broadcast; And the application processing unit 23 of signal quality information being done to use processing.
In general, the mode that front-end server 20 is collected signal quality informations from each digital television receiver 10 has two kinds: a kind of mode be the user make automatic channel search by digital television receiver 10, search platform by hand, when normally watching program, digital television receiver 10 is collected the signal quality information of each frequency on the backstage, initiatively report front-end server 20 according to initialize program; Another kind of mode is to send instruction to digital television receiver 10 as required by front-end server 20, and digital television receiver 10 sends to front-end server 20 with the signal quality information of frequency to reply.
In addition, because the user is exactly that digital television receiver 10 carries out frequency locking at the first step of TV reception, and also just natural the obtaining of the data of the video quality of this frequency in the frequency locking process, do not need extra consume system resources, frequency of every switching just upgrades the signal quality information of corresponding frequency.Consider that the user has the much different customs of watching, having a lot of frequencies to depend merely on this mode is can't collect signal quality data forever, therefore, can be helped solve by following mode: carry out a full frequency band search when each user newly installs; Issue program updating command request user by front-end server 20 and do full frequency band search processing again; Issued modes such as signal testing instruction realizes by front-end server 20.
As for the application processing unit 23 in the front-end server 20, it can be configured fully according to actual needs.For example, use the information such as sequence number of processing unit 23 binding analysis signal quality informations and corresponding digital television receiver 10 and the geographical position of user's registration and can obtain overall network condition distribution map, can formulate whole network operation plan; Also can analyze the network state in the individual user family, planned active solves the not good failure problems of video quality to the doorstep.
And for example, use the data that processing unit 23 receives each digital television receiver 10, set alarming line and fault level and prompting, comprising: lose platform or all can't lock platform, illustrate that these frequency signals of this user are too poor, user's digital television receiver can't be worked; Signal to noise ratio is too low, illustrates that there is interference in this circuit, needs the investigation interference source to connect up with optimizing; Signal strength signal intensity is too low, needs to improve the multiplication factor of amplifier; Error rate height, video go out phenomenon such as mosaic will be influenced the user and normally use, and needs to adjust the various factors of reflected signal quality index.Therefore, the network maintenance staff can self-defined different alarm parameters, generates different forms, effectively finds fault rootstock according to the form result, provides prerequisite for the client provides fast fault to solve.Certainly, the statistical report form of all right self-defined different alarming line parameters generation signal quality informations.
In sum, the present invention gathers the video parameter information of each frequency automatically by each digital television receiver, for catv net reform and maintenance provide basic data, help to reduce the maintenance cost of television network broadcast operator, improve the signal quality of digital television receiver user TV reception.
Claims (10)
1, a kind of television signal quality collection system is characterized in that, comprising:
Insert a plurality of digital television receivers of television network broadcast, by reading the numerical value of register in it demodulator that comprises, calculate the signal quality information of current working frequency respectively;
Insert the front-end server of television network broadcast, collect digital television receiver and calculate the signal quality information that obtains and use processing.
2, television signal quality collection system according to claim 1 is characterized in that, described digital television receiver at least also comprises:
The frequency point information collection module is used for reading register value from demodulator;
The signal quality computing module is used for calculating according to register value the signal quality information of current working frequency;
Interface module is used in the mode that initiatively reports or reply the beacon information of signal quality information and digital television receiver being transferred to front-end server.
3, television signal quality collection system according to claim 2 is characterized in that, described signal quality information comprises signal strength signal intensity, signal to noise ratio, the error rate or planisphere at least; Described beacon information comprises sequence number, CA card number, IP address or MAC Address.
4, television signal quality collection system according to claim 1 is characterized in that, the numerical value in the described register is to make up acquisition by following one or more modes:
The user makes the frequency handover operation, and digital television receiver is done to obtain in the locking frequency point processing procedure;
When newly being installed, digital television receiver carries out obtaining in the process of full frequency band search;
Issue program updating instruction by front-end server, the user responds in the process that update instruction control figure full frequency band that television receiver carries out searches for and obtains;
Issue signal testing instruction by front-end server, Digital Television receives this test instruction of response and obtains in the process of TV programme signal of specific frequency and obtain.
5, according to each described television signal quality collection system of claim 1 to 4, it is characterized in that described front-end server comprises at least:
Control unit;
The communication unit of communicating by letter with digital television receiver;
And the application processing unit of signal quality information being done to use processing.
6, a kind of digital television receiver comprises: the receiving element of received television signal; TV signal is made the demodulator of demodulation process; Audio/video decoding unit and audio frequency and video output unit; It is characterized in that, also comprise: be used for calculating the signal quality collecting unit of the signal quality information of current working frequency by reading the numerical value of the demodulator register that digital television receiver comprises.
7, digital television receiver according to claim 6 is characterized in that, described signal quality collecting unit comprises:
The frequency point information collection module is used for reading the register value that reflects the current working frequency signal message from demodulator;
The signal quality computing module is used for calculating according to register value the signal quality information of current working frequency;
Interface module is used for transferring to front-end server or exporting other external equipments to by television network broadcast with the mode that initiatively reports or the reply beacon information with signal quality information and digital television receiver.
8, a kind of video quality acquisition method is characterized in that, comprises step:
Digital television receiver receives the TV signal that television network broadcast issues, and by demodulator TV signal is carried out demodulation process;
Read the register value that reflects the current working frequency signal message from demodulator, calculate the signal quality information of current working frequency.
9, video quality acquisition method according to claim 8 is characterized in that, also comprises step:
Digital television receiver transfers to front-end server with the beacon information of signal quality information and digital television receiver by television network broadcast in the mode that initiatively reports or reply;
By front-end server signal quality information is used processing according to pre-conditioned work.
10, video quality acquisition method according to claim 9 is characterized in that, described application is handled and comprised:
The signal quality information of gathering is set alarming line or fault level and prompting, and comprising: signal strength signal intensity is lower than alarming line, then points out digital television receiver to work; Signal to noise ratio is lower than alarming line and then points out the circuit of digital television receiver received television signal to have interference; Signal strength signal intensity is lower than the multiplication factor that alarming line is then pointed out needs raising TV signal to be made the amplifier of processing and amplifying; The error rate is higher than alarming line and then points out needs to adjust the various factors of reflected signal quality index;
Self-defined different alarming line parameter generates the statistical report form of signal quality information.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102175378A CN101404782A (en) | 2008-11-07 | 2008-11-07 | Digital television receiver, television signal quality collection system and method |
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| CNA2008102175378A CN101404782A (en) | 2008-11-07 | 2008-11-07 | Digital television receiver, television signal quality collection system and method |
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| CN101404782A true CN101404782A (en) | 2009-04-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102014294A (en) * | 2010-10-25 | 2011-04-13 | 福建新大陆通信科技股份有限公司 | Method for realizing high-definition hand-hold multi-functional digital video broadcasting-cable (DVB-C) detector |
| CN102231845A (en) * | 2011-06-14 | 2011-11-02 | 深圳市同洲电子股份有限公司 | Method and device for testing front end of digital television |
| CN102665110A (en) * | 2012-05-11 | 2012-09-12 | 北京海尔集成电路设计有限公司 | Ground television monitoring method, system, wireless set top box and monitoring server |
| CN103634662A (en) * | 2013-12-19 | 2014-03-12 | 珠海迈科电子科技有限公司 | Promoting method and system for strength of video signal |
| CN103841414A (en) * | 2014-03-18 | 2014-06-04 | 珠海迈科电子科技有限公司 | Portable multifunctional signal measuring instrument for digital broadcasting television |
| CN104469203A (en) * | 2014-12-11 | 2015-03-25 | 成都新光微波工程有限责任公司 | Digital television emission managing system |
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2008
- 2008-11-07 CN CNA2008102175378A patent/CN101404782A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102014294A (en) * | 2010-10-25 | 2011-04-13 | 福建新大陆通信科技股份有限公司 | Method for realizing high-definition hand-hold multi-functional digital video broadcasting-cable (DVB-C) detector |
| CN102231845A (en) * | 2011-06-14 | 2011-11-02 | 深圳市同洲电子股份有限公司 | Method and device for testing front end of digital television |
| CN102665110A (en) * | 2012-05-11 | 2012-09-12 | 北京海尔集成电路设计有限公司 | Ground television monitoring method, system, wireless set top box and monitoring server |
| CN103634662A (en) * | 2013-12-19 | 2014-03-12 | 珠海迈科电子科技有限公司 | Promoting method and system for strength of video signal |
| CN103841414A (en) * | 2014-03-18 | 2014-06-04 | 珠海迈科电子科技有限公司 | Portable multifunctional signal measuring instrument for digital broadcasting television |
| CN103841414B (en) * | 2014-03-18 | 2016-04-13 | 珠海迈科智能科技股份有限公司 | A kind of portable multi-function digital broadcasting-television signal measuring instrument |
| CN104469203A (en) * | 2014-12-11 | 2015-03-25 | 成都新光微波工程有限责任公司 | Digital television emission managing system |
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Open date: 20090408 |