CN109640183A - A kind of method, storage medium and electronic equipment solving simulated television frequency drift - Google Patents
A kind of method, storage medium and electronic equipment solving simulated television frequency drift Download PDFInfo
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- CN109640183A CN109640183A CN201811593203.0A CN201811593203A CN109640183A CN 109640183 A CN109640183 A CN 109640183A CN 201811593203 A CN201811593203 A CN 201811593203A CN 109640183 A CN109640183 A CN 109640183A
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- television
- frequency trim
- trim device
- simulated
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- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
The invention discloses a kind of method, storage medium and electronic equipments for solving simulated television frequency drift, wherein, method then initializes the frequency trim device set in television and creates the broadcast for monitoring TV end segment mesh broadcast state comprising steps of when detecting that television enters simulated television channel；When monitoring the television program broadcasting exception by the broadcast, then starts the frequency trim device and frequency trim is carried out to television；When the frequency trim device has executed predetermined cycle-index fine tuning or finely tuned normal to the broadcasting of television program, then the frequency trim device is closed.Reticulate pattern, striped, distortion and vertical white band interference can be effectively avoided, makes frequency trim more intelligent, comprehensive and safe.Make the more smooth stabilization of system, improves user experience.
Description
Technical field
The present invention relates to software application technology field more particularly to a kind of method for solving simulated television frequency drift, deposit
Storage media and electronic equipment.
Background technique
In switchover watching analog TV program, it sometimes appear that unstable moire phenomenon, this is Individual channels user
Since the frequency of the channel transmission equipment is drifted about, at this time if not in place to frequency drift processing, television image is easy
There is the problem of reticulate pattern, striped, distortion and vertical white band interfere.
Currently, frequency drift issue handling mode is too simple not enough under simulated television in Android TV equipment
Intelligence, while automatic fine tuning module is exited behind simulated television channel without stopping the problems such as causing system reboot in time.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of solution simulated television frequency drifts
Method, storage medium and electronic equipment, it is intended in the prior art when solving simulated television lower frequency drifting problem, be adopted
Method is unreasonable, and television image is caused to play abnormal problem.
Technical scheme is as follows:
A method of solving simulated television frequency drift, wherein comprising steps of
When detecting that television enters simulated television channel, then the frequency trim device set in television is initialized simultaneously
Creation is used for the broadcast of monitoring TV end segment mesh broadcast state；
When monitoring the television program broadcasting exception by the broadcast, then start the frequency trim device to TV
End carries out frequency trim；
When the frequency trim device has executed predetermined cycle-index fine tuning or finely tuned normal to the broadcasting of television program, then close
Close the frequency trim device.
The method of the solution simulated television frequency drift, wherein the step, which is worked as, monitors institute by the broadcast
When stating television program broadcasting exception, then start the frequency trim device includes: to television progress frequency trim
When monitoring the television program broadcasting exception by the broadcast, then starts the frequency trim device and create
Start Success Flag position；
Frequency trim is carried out to television by the frequency trim device.
The method of the solution simulated television frequency drift, wherein the step starts the frequency trim device pair
Television carries out frequency trim, later further include:
When television, which receives, exits simulated television channel instruction, then pass through the flag bit shape of the detection frequency trim device
State judges whether the frequency trim device is working；
When detecting the flag bit state of the frequency trim device to start Success Flag position, then it is micro- first to close the frequency
Adjust device, backed off after random simulated television channel.
The method of the solution simulated television frequency drift, wherein it includes program that the television program, which plays abnormal,
It plays failure or program broadcasting is unstable.
The method of the solution simulated television frequency drift, wherein the step starts the frequency trim device pair
Television carries out frequency trim, specifically includes:
The frequency trim device carries out the frequency trim of offset search formula to television using offset amplitude algorithm.
The method of the solution simulated television frequency drift, wherein the frequency trim device is calculated using offset amplitude
Method carries out television after the frequency trim of offset search formula further include:
During offset search, if frequency trim device is finely tuned when playing normal to television program, the frequency is closed
Micromatic setting.
The method of the solution simulated television frequency drift, wherein the frequency trim device is calculated using offset amplitude
Method carries out television after the frequency trim of offset search formula further include:
The frequency trim device is automatically closed after cyclic search pre-determined number in the frequency trim device.
The method of the described solution simulated television frequency drift, wherein the offset amplitude algorithm comprising steps of
Maximum needed for getting television finely tunes deviant M and offset times N, the natural number that wherein N is >=1；
The frequency for first obtaining actual program is displaced to maximum value from median search as median, then inclined from median search
Minimum value is moved on to, n times are recycled；
From 1 into n times cyclic process, if being currently jth time, the amplitude for the offset search that circulation n times recycle every time is M/
(2*j ) 。
A kind of storage medium, wherein be stored with a plurality of instruction, described instruction is suitable for being loaded by processor and executing above-mentioned institute
The step of stating the method for solving simulated television frequency drift.
A kind of electronic equipment, wherein including processor, be adapted for carrying out each instruction；And memory, it is suitable for storing a plurality of finger
It enables, described instruction is suitable for being loaded by processor and executing any solution simulated television frequency drift of the claims 1-8
Method the step of.
The utility model has the advantages that the method provided by the present invention for solving simulated television frequency drift, it can be according to different
Type of hardware, the starting of different signal condition intelligence, pause, close frequency trim function, dynamic configuration finely tune when amplitude,
Number, reasonably optimizing is to hardware resource frequency of use.Can effectively avoid reticulate pattern, striped, distortion and vertical white band interference, make be
The more smooth stabilization of system.
Detailed description of the invention
Fig. 1 is a kind of flow chart for the method preferred embodiment for solving simulated television frequency drift of the present invention.
Fig. 2 is the structural block diagram of a kind of electronic equipment preferred embodiment of the present invention.
Specific embodiment
The present invention provides a kind of methods for solving simulated television frequency drift, to make the purpose of the present invention, technical solution
And effect is clearer, clear, the present invention is described in more detail below.It should be appreciated that specific implementation described herein
Example is only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is a kind of process for the method preferred embodiment for solving simulated television frequency drift of the present invention
Figure, as shown in Figure 1, the method for solving simulated television frequency drift comprising step:
S10, when detecting that television enters simulated television channel, then the frequency trim device that sets in television is carried out initial
Change and creates the broadcast for monitoring TV end segment mesh broadcast state；
S20, when monitoring the television program by the broadcast and playing abnormal, then start the frequency trim device pair
Television carries out frequency trim；
S30, when the frequency trim device executed the fine tuning of predetermined cycle-index or finely tune play normal to television program when,
Then close the frequency trim device.
Specifically, it is existing for solve the problems, such as simulated television lower frequency drift when, correcting mode be enter mould
Frequency trim device begins to work after quasi- television channel, and circular test, expends a large amount of hardware resource, played always
TV programme are easy to appear reticulate pattern, striped, distortion and vertical white band interference.
To solve the above-mentioned problems, by after television enters simulated television channel, creating a monitoring in the present invention
Broadcast, this broadcast can monitor program broadcast state signal in real time, detect current television end segment purpose broadcast state signal
After changing, result can be will test and notify frequency trim device immediately, drifted about by frequency trim device to occurrence frequency
The frequency of transmission device be finely adjusted, finely tune successfully, then pause immediately and concede held hardware resource.Effectively prevent frequency
Rate micromatic setting circular test always, the problem of expending system resource.
Specifically, send instructions under user is using remote controler or other equipment when carrying out switchover watching analog TV program,
The Native layer of android system receives instruction, into TV simulated television channel；Into after simulated television channel, initialization frequency
Rate micromatic setting, and the broadcast that a monitoring plays program state signal is created, which can monitor broadcast program in real time
State: as program whether play successfully, play failure, play unstable, become in the broadcast state for detecting actual program
After change, result detection is just notified into frequency trim device immediately.Start to play program, if playing failure or unstable
It is fixed, monitor the broadcast of broadcast state frequency of notification fine adjustment function module immediately, starting fine tuning work；It such as plays normally, is then not necessarily to
Any processing；Intelligence is finely tuned successfully, then pauses immediately frequency trim device, concede held hardware resource；
In some embodiments, the step S20 is specifically included:
When monitoring the television program by the broadcast and playing abnormal, then initiation culture micromatic setting；Frequency trim
After device starting, android system safeguards an active flag, such as start successfully, and mark is set to SUCCESS, suspend or
Stopping being then set to FAILED, and active flag is finely adjusted the frequency of the channel transmission equipment after being provided with.It is opened by setting
Dynamic mark, is supervised convenient for the working condition to frequency trim device.
In some embodiments, when user is not desired to viewing actual program, after the instruction of analog channel is exited in sending, system
Native layers receive instruction, and simulated television channel is exited in preparation；First to detect whether frequency trim device is working；It i.e. will be first
Either with or without active flag in inspection system, there is starting successfully mark when detecting in system, it is meant that frequency trim device is just
At work, then frequency trim device is deactivated, driving layer correlation API is called, discharges its hardware resource held, stop program
It plays, exits simulated television channel.It avoids the occurrence of in frequency trim device also in the case where starting, system directly exits simulation
Television channel occurs illegally using hardware resources such as tuner, the problem of crash occur, TV blank screen is caused to be restarted.
In some embodiments, frequency trim device may go out when the equipment to transmission channel carries out frequency trim
Unsuccessful situation is now finely tuned, it, then can be by the way that cyclic search be arranged in order to avoid frequency trim device persistently occupies hardware resource
The form of number is controlled, that is, the execution searching times of frequency trim device are arranged, and provides cyclic search number when having executed
When, no matter whether frequency adjusts success, can all stop frequency trim device, concede hardware resource.
Further, frequency trim device, which carries out the working principle of frequency trim, is, first against different hardware performances, closes
The configuration peak excursion and offset number of reason；Offset search is carried out according to offset amplitude algorithm, if be tailored into search process
Function then pauses immediately fine tuning work；If after cyclic search to stipulated number, still without finely tuning successfully, also paused immediately
Finely tune work.
Wherein, offset amplitude algorithm maximum needed for getting Current hardware in system configuration item fine tuning deviant M and
Deviate times N；The frequency for first obtaining actual program is used as median, searches for from median and is displaced to maximum value, then from median
Search is displaced to minimum value, recycles n times；From 1 into n times cyclic process, if being currently jth time, the inclined of n times each round is recycled
The amplitude for moving search is M/ (2*j), this is a dynamic value, and as the number of circulation increases, the amplitude of offset is then smaller,
Precision when fine tuning will increase therewith；The mode calculated with the dynamic, reduces the range of dynamic change offset amplitude, improves
The precision of fine tuning increases the successful probability of fine tuning.
The present invention also provides a kind of storage mediums, are stored with a plurality of instruction, and described instruction is suitable for being loaded and being held by processor
The step of row above-mentioned solution simulated television frequency drift method.
The present invention also provides a kind of mobile terminals, wherein as shown in Fig. 2, including processor 10, is adapted for carrying out each instruction；
And storage equipment 20, it is suitable for storing a plurality of instruction, described instruction is suitable for being loaded by processor 10 and executing use described above
In the method for solving simulated television frequency drift.
Specifically, the processor 10 can be a central processing unit in some embodiments, microprocessor or other
Data processing chip, for running the program code stored in the storage equipment 20 or processing data.
The storage equipment 20 can be the internal storage unit of described device in some embodiments, such as the device
Hard disk or memory.The storage equipment 20 is also possible to the external memory of described device, such as institute in further embodiments
State the plug-in type hard disk being equipped on device, mobile memory card (Smart Media Card, SMC), secure digital (Secure
Digital, SD) card, flash card (Flash Card) etc..
Further, the storage equipment 20 can also both include the internal storage unit of described device or deposit including outside
Storage device.The storage equipment 20 is for storing the application software and Various types of data for being installed on described device.The storage equipment
20 can be also used for temporarily storing the data that has exported or will export.
In conclusion the method provided by the present invention for solving simulated television frequency drift, it can be according to different hard
Part type, pause, closes frequency trim function, the amplitude, secondary when dynamic configuration is finely tuned at the starting of different signal condition intelligence
Number, reasonably optimizing have been truly realized intelligent controllable hardware resource frequency of use.Can effectively avoid reticulate pattern, striped, distortion and
Vertical white band interference, makes frequency trim more intelligent, comprehensive and safe.Make the more smooth stabilization of system, improves user experience.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of method for solving simulated television frequency drift, which is characterized in that comprising steps of
When detecting that television enters simulated television channel, then the frequency trim device set in television is initialized simultaneously
Creation is used for the broadcast of monitoring TV end segment mesh broadcast state；
When monitoring the television program broadcasting exception by the broadcast, then start the frequency trim device to TV
End carries out frequency trim；
When the frequency trim device has executed predetermined cycle-index fine tuning or finely tuned normal to the broadcasting of television program, then close
Close the frequency trim device.
2. the method according to claim 1 for solving simulated television frequency drift, which is characterized in that the step, which is worked as, to be passed through
When the broadcast monitors the television program broadcasting exception, then starts the frequency trim device and frequency is carried out to television
Fine tuning includes:
When monitoring the television program broadcasting exception by the broadcast, then starts the frequency trim device and create
Start Success Flag position；
Frequency trim is carried out to television by the frequency trim device.
3. the method according to claim 2 for solving simulated television frequency drift, which is characterized in that the step starts institute
It states frequency trim device and frequency trim is carried out to television, later further include:
When television, which receives, exits simulated television channel instruction, then pass through the flag bit shape of the detection frequency trim device
State judges whether the frequency trim device is working；
When detecting the flag bit state of the frequency trim device to start Success Flag position, then it is micro- first to close the frequency
Adjust device, backed off after random simulated television channel.
4. the method according to claim 1 for solving simulated television frequency drift, which is characterized in that the television program
Abnormal broadcasting includes that program broadcasting failure or program broadcasting are unstable.
5. the method according to claim 1 for solving simulated television frequency drift, which is characterized in that the step starts institute
It states frequency trim device and frequency trim is carried out to television, specifically include:
The frequency trim device carries out the frequency trim of offset search formula to television using offset amplitude algorithm.
6. the method according to claim 5 for solving simulated television frequency drift, which is characterized in that the frequency trim dress
Set using offset amplitude algorithm to television carry out the frequency trim of offset search formula after further include:
During offset search, if frequency trim device is finely tuned when playing normal to television program, the frequency is closed
Micromatic setting.
7. the method according to claim 5 for solving simulated television frequency drift, which is characterized in that the frequency trim dress
Set using offset amplitude algorithm to television carry out the frequency trim of offset search formula after further include:
The frequency trim device is automatically closed after cyclic search pre-determined number in the frequency trim device.
8. the method according to claim 5 for solving simulated television frequency drift, which is characterized in that the offset amplitude is calculated
Method comprising steps of
Maximum needed for getting television finely tunes deviant M and offset times N, the natural number that wherein N is >=1；
The frequency for first obtaining actual program is displaced to maximum value from median search as median, then inclined from median search
Minimum value is moved on to, n times are recycled；
From 1 into n times cyclic process, if being currently jth time, the amplitude for the offset search that circulation n times recycle every time is M/
(2*j ) 。
9. a kind of storage medium, which is characterized in that be stored with a plurality of instruction, described instruction is suitable for by processor load and right of execution
Benefit requires the step of method of any solution simulated television frequency drift of 1-8.
10. a kind of electronic equipment, which is characterized in that including processor, be adapted for carrying out each instruction；And memory, it is suitable for storage
A plurality of instruction, described instruction are suitable for being loaded by processor and being executed any solution simulated television frequency of the claims 1-8
The step of method of rate drift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593203.0A CN109640183B (en) | 2018-12-25 | 2018-12-25 | Method for solving frequency drift of analog television, storage medium and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811593203.0A CN109640183B (en) | 2018-12-25 | 2018-12-25 | Method for solving frequency drift of analog television, storage medium and electronic equipment |
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| Publication Number | Publication Date |
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| CN109640183A true CN109640183A (en) | 2019-04-16 |
| CN109640183B CN109640183B (en) | 2021-08-31 |
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| CN201811593203.0A Active CN109640183B (en) | 2018-12-25 | 2018-12-25 | Method for solving frequency drift of analog television, storage medium and electronic equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787619A (en) * | 2004-12-06 | 2006-06-14 | 乐金电子(中国)研究开发中心有限公司 | Manually searching device for TV analog signal and method thereof |
| CN102316287A (en) * | 2010-07-09 | 2012-01-11 | 北京创毅视讯科技有限公司 | Method and device for demodulating analogue television signal |
| US20170272484A1 (en) * | 2016-03-21 | 2017-09-21 | Le Holdings (Beijing) Co., Ltd. | Method and electronic device for automatically adjusting multimedia data flow based on online playing |
| CN107888855A (en) * | 2017-11-14 | 2018-04-06 | 四川长虹电器股份有限公司 | The method of simulated television tuning |
-
2018
- 2018-12-25 CN CN201811593203.0A patent/CN109640183B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1787619A (en) * | 2004-12-06 | 2006-06-14 | 乐金电子(中国)研究开发中心有限公司 | Manually searching device for TV analog signal and method thereof |
| CN102316287A (en) * | 2010-07-09 | 2012-01-11 | 北京创毅视讯科技有限公司 | Method and device for demodulating analogue television signal |
| US20170272484A1 (en) * | 2016-03-21 | 2017-09-21 | Le Holdings (Beijing) Co., Ltd. | Method and electronic device for automatically adjusting multimedia data flow based on online playing |
| CN107888855A (en) * | 2017-11-14 | 2018-04-06 | 四川长虹电器股份有限公司 | The method of simulated television tuning |
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| CN109640183B (en) | 2021-08-31 |
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