CN108600857A - A kind of method and smart television of instruction TV signal source states - Google Patents
A kind of method and smart television of instruction TV signal source states Download PDFInfo
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- CN108600857A CN108600857A CN201810377746.2A CN201810377746A CN108600857A CN 108600857 A CN108600857 A CN 108600857A CN 201810377746 A CN201810377746 A CN 201810377746A CN 108600857 A CN108600857 A CN 108600857A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008054 signal transmission Effects 0.000 claims abstract description 54
- 230000035945 sensitivity Effects 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 3
- 238000011079 streamline operation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 13
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- H04N21/47—End-user applications
- H04N21/488—Data services, e.g. news ticker
- H04N21/4882—Data services, e.g. news ticker for displaying messages, e.g. warnings, reminders
-
- 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
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
-
- 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
- H04N21/4425—Monitoring of client processing errors or hardware failure
-
- 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
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
The present invention relates to digital signal technique fields, more particularly to a kind of method and smart television of instruction TV signal source states, to solve the problems, such as in the prior art when no signal occur, user is needed to check the state of TV signal sources manually, operation is very inconvenient and is unfavorable for intelligentized problem.Smart television of the embodiment of the present invention upon actuation, determines the corresponding multiple frequency points of currently used television signal transmission standard；Whether judge has corresponding programme signal in multiple frequency points be the frequency point of useful signal；If so, determining that TV signal sources are normal condition, and user is prompted in a manner of preset.Since the embodiment of the present invention is when no signal problem occurs in smart television, if current smart television prompt TV signal sources are normal condition, user need not go to check TV signal sources manually again, therefore can save the plenty of time, streamline operation.
Description
Technical field
The present invention relates to field of digital signals technical field, more particularly to a kind of the method and intelligence of instruction TV signal source states
It can TV.
Background technology
With the continuous development of TV tech, the function of television set is more and more complete, and the type of television set is also more and more
(such as LCD TV, DTV).With the continuous refinement of TV functions, the operation of smart television also gradually tends to human nature
Change.
User is when watching TV programme, the case where encountering no signal, at this point, the printed words of " no signal " can be shown
On the tv screen.Further, to prevent burn-in problem caused by display still frame for a long time, " no signal " is gone back
It can be presented on television screen in such a way that dynamic floats displaying.Under such state, the selection of user is exactly to switch nothing but
To next channel, or wait for；If the long period is waited for still still not believe without signal, or the multiple channels of switching
Number, user just need check no signal the reason of, judge TV signal sources whether in abnormal condition (for example, television signal line
Whether failure).In the prior art, when there is no signal problem, user is needed to check the state of TV signal sources manually, operated
It is very inconvenient and be unfavorable for intelligence.
Invention content
The present invention provides a kind of method and smart television of instruction TV signal source states, to solve going out in the prior art
When existing no signal problem, user is needed to check the state of TV signal sources manually, operation is very inconvenient and is unfavorable for intelligentized ask
Topic.
Based on the above issues, in a first aspect, the embodiment of the present invention provides a kind of method of instruction TV signal source states, packet
It includes：
Smart television upon actuation, determines the corresponding multiple frequency points of currently used television signal transmission standard；
The smart television judges that it is the frequency point of useful signal whether to have corresponding programme signal in the multiple frequency point；
If so, the smart television determines that TV signal sources are normal condition, and user is prompted in a manner of preset.
Second aspect, the embodiment of the present invention provide a kind of smart television, including：
At least one processing unit and at least one storage unit, wherein the storage unit has program stored therein code,
When said program code is executed by the processing unit so that the processing unit executes following process：
After smart television startup, the corresponding multiple frequency points of currently used television signal transmission standard are determined；Judge institute
It is the frequency point of useful signal that whether state in multiple frequency points, which has corresponding programme signal,；If so, determine that TV signal sources are normal condition,
And user is prompted in a manner of preset.
The third aspect, the embodiment of the present invention also provide a kind of smart television, including：
Determining module, for smart television upon actuation, determine that currently used television signal transmission standard is corresponding
Multiple frequency points；
Judgment module, for judging that it is the frequency point of useful signal whether to have corresponding programme signal in the multiple frequency point；
Processing module, for when it is the frequency point of useful signal to have corresponding programme signal, determining that TV signal sources are normal
State, and user is prompted in a manner of preset.
Upon actuation due to smart television of the embodiment of the present invention, it can be determined according to currently used television signal transmission standard
Multiple frequency points, and the corresponding programme signal of multiple frequency points is detected, it is effective to have the corresponding programme signal of frequency point in multiple frequency points
It determines that TV signal sources are normal condition when signal, and prompts user；User can determine current TV according to the prompt of smart television
Signal source is normal, when there is no signal problem in smart television, if current smart television prompt TV signal sources are normal condition,
User need not go to check TV signal sources (for example, check television signal line whether failure etc.) manually again, therefore can save big
Measure time, streamline operation.
Description of the drawings
Fig. 1 is the method flow diagram that the embodiment of the present invention indicates TV signal source states；
Fig. 2 is the schematic diagram of the navigation interface of smart television of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the first smart television of the embodiment of the present invention；
Fig. 4 A are the schematic diagram of the signal source menu interface of the first smart television of the embodiment of the present invention；
Fig. 4 B are the schematic diagram of the signal source menu interface of second of smart television of the embodiment of the present invention；
Fig. 5 is the overall flow figure that the embodiment of the present invention indicates TV signal source states；
Fig. 6 is the structural schematic diagram of second of smart television of the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the third smart television of the embodiment of the present invention.
Specific implementation mode
The method of the instruction TV signal source states of the embodiment of the present invention is applied in smart television.Smart television is starting
Afterwards, the corresponding multiple frequency points of currently used television signal transmission standard are determined；Smart television judges whether have in multiple frequency points
Corresponding programme signal is the frequency point of useful signal；If so, smart television determines that TV signal sources are normal condition, and with preset
Mode prompts user.It upon actuation due to smart television of the embodiment of the present invention, can be according to currently used television signal transmission system
Formula determines multiple frequency points, and detects the corresponding programme signal of multiple frequency points, there is the corresponding programme signal of frequency point in multiple frequency points
To determine that TV signal sources are normal condition when useful signal, and prompt user；User can determine according to the prompt of smart television
Current TV signal source is normal, when no signal problem occurs in smart television, if current smart television prompt TV signal sources are normal
State, then user need not go to check TV signal sources (for example, check television signal line whether failure etc.) again manually, therefore can be with
The plenty of time is saved, streamline operation.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention provide it is a kind of instruction TV signal source states method include：
Step 101, smart television upon actuation, determine the corresponding multiple frequencies of currently used television signal transmission standard
Point；
Step 102, smart television judge that it is the frequency of useful signal whether to have corresponding programme signal in the multiple frequency point
Point；
Step 103, if so, smart television determines that TV signal sources are normal condition, and user is prompted in a manner of preset.
In implementation, smart television upon actuation, obtain user smart television navigation interface select country, according to
The country of family selection, which determines, needs television signal transmission standard to be used；
Navigation interface as shown in Figure 2, it includes China, the U.S., Britain, method that smart television, which is supplied to the optional country of user,
State, Canada, Japan, South Korea, Russia.
Wherein, user may be used following manner and select country in navigation interface：
1, country is selected by remote controler；
2, it is directed to touch screen smart television, country is selected by way of touch；
3, search window, country of the user in search window input selection are set in navigation interface.
It should be noted that the different corresponding television signal transmission standards of country may be differed also, it is therefore desirable to root
According to the country that user selects, the corresponding television signal transmission standard of the country is determined.
The television signal transmission standard that smart television of the embodiment of the present invention can use includes but not limited to：
DVB-C standards, DVB-T2 standards, DVB-S2 standards, DVB-S standards, ISDB standards.
The different television signal transmission standard of the embodiment of the present invention corresponds to different frequency points, also, each TV signal
Transmission system corresponds to multiple frequency points；
For example, in some areas, DVB-C standards or the corresponding frequency point ranges of DVB-C are 114MHz~858MHz；DVB-S/
It is 950MHz~2150MHz that S2, which corresponds to frequency point ranges,.
After the corresponding frequency point ranges of known television signal transmission standard, according to the bandwidth of television signal transmission standard, really
Determine the corresponding frequency point of television signal transmission standard；
For example, when the corresponding frequency point ranges of DVB-T standards are 114MHz~858MHz；Bandwidth be 8MHz or 7MHz or
6MHz；By bandwidth be 8MHz for, the corresponding frequency point of DVB-T standards be 114MHz, 122MHz, 130MHz ..., 474MHz,
482MHz、490MHz……858MHz；Wherein, common frequency point is 474MHz, 482MHz, 490MHz ... 858MHz.
Smart television detects successively after determining the corresponding multiple frequency points of currently used television signal transmission standard
The corresponding programme signal of frequency point, and judge whether the corresponding programme signal of frequency point is useful signal, determining TV signal biography
When to have the corresponding programme signal of frequency point in the corresponding multiple frequency points of defeated standard be useful signal, determine that TV signal sources are normal shape
State.
It should be noted that since smart television of the embodiment of the present invention is to detect the corresponding programme signal of each frequency point successively
Whether it is useful signal, it, can be whole when smart television determines that the corresponding programme signal of the frequency point of current detection is useful signal
Next frequency point is only detected, can determine that TV signal sources are normal condition at this time.
For example, smart television determines that the currently used corresponding frequency point of television signal transmission standard includes：Frequency point 1, frequency point
2, frequency point 3, frequency point 4, frequency point 5, frequency point 6, frequency point 7, frequency point 8, frequency point 9, frequency point 10；Assuming that smart television since frequency point 1 according to
It is secondary to detect the corresponding programme signal of each frequency point, if 1 corresponding programme signal of frequency point is invalid signals, smart television detection frequency
2 corresponding programme signals of point, however, it is determined that 2 corresponding programme signal of frequency point is useful signal, then stops detecting other frequency points correspondences
Programme signal, and determine that TV signal sources are normal condition.
In implementation, for any one frequency point, smart television judges that the corresponding programme signal of frequency point is according to following manner
No is useful signal：
Smart television detects the signal strength values of the corresponding programme signal of the frequency point；
If the signal strength values are more than the upper limit value in the corresponding default sensitivity section of the television signal transmission standard,
The smart television determines that the corresponding programme signal of the frequency point is useful signal；
If the signal strength values are not more than the upper limit value, and not less than the lower limiting value in the default sensitivity section
When, the smart television determines the carrier-to-noise ratio of the corresponding programme signal of the frequency point；It is not less than the TV in the carrier-to-noise ratio
When the corresponding default carrier-to-noise ratio threshold value of signal transmission standard, determine that the corresponding programme signal of the frequency point is useful signal.
Optionally, smart television locks the frequency point by tuner, and obtains the corresponding section of frequency point that tuner is detected
The signal strength values of mesh signal.
As shown in figure 3, smart television includes audio video processor 30 and at least one tuner 31；
Wherein, the frequency point that audio video processor is detected for determining needs, and the frequency point detected will be needed to pass through I2C is ordered
Enable notice tuner；Tuner lockings need the frequency point detected, and detect the signal strength values of the corresponding programme signal of the frequency point, and
The signal strength values detected are returned into audio video processor, audio video processor judges according to the signal strength values received
Whether the corresponding programme signal of the frequency point is effective information.
It should be noted that the signal strength values that tuner is detected are RSSI (the Received Signal of frequency point
Strength Indication, received signal strength indicator) value.
In force, it for different television signal transmission standards, can pre-set and each television signal transmission standard
Corresponding default sensitivity section, which includes upper limit value and lower limiting value；
It should be noted that the corresponding default sensitivity section of television signal transmission standard, for according to people in the art
The experience or agreement of member is pre-set.
For example, television signal transmission standard be DVB-T2, be its pre-set sensitivity section be -95.6dBm~-
74dBm；The upper limit value in wherein default sensitivity section is -74dBm, and the lower limiting value for presetting sensitivity section is -95.6dBm.
In another example television signal transmission standard be DVB-C, be its pre-set sensitivity section be -69dBm~-
65dBm；The upper limit value in wherein default sensitivity section is -65dBm, and the lower limiting value for presetting sensitivity section is -69dBm.
In force, smart television is after the signal strength values for detecting the corresponding programme signal of frequency point, by signal strength
Value default sensitivity section corresponding with television signal transmission standard is compared, if signal strength values are more than default sensitivity area
Between upper limit value, it is determined that the corresponding programme signal of frequency point be useful signal；
If signal strength values are less than the lower limiting value in the default sensitivity section, determine that the corresponding programme signal of frequency point is invalid
Signal；
If signal strength values preset the upper limit value in sensitivity section no more than this and preset sensitivity section not less than this
When lower limiting value, smart television further determines that the carrier-to-noise ratio of the corresponding programme signal of frequency point, not small in the carrier-to-noise ratio of programme signal
When television signal transmission standard corresponding default carrier-to-noise ratio threshold value, determine that the corresponding programme signal of frequency point is useful signal；
When the carrier-to-noise ratio of programme signal is less than television signal transmission standard corresponding default carrier-to-noise ratio threshold value, the corresponding program of frequency point is determined
Signal is invalid signals.
Optionally, smart television demodulates the corresponding programme signal of the frequency point by Demod, determines the frequency point
The carrier-to-noise ratio of corresponding programme signal.
In force, can be that each television signal transmission standard is pre-set for different television signal transmission standards
Corresponding default carrier-to-noise ratio threshold value；Alternatively, corresponding default carrier-to-noise ratio section is pre-set for each television signal transmission standard,
Wherein, the lower limiting value in the default carrier-to-noise ratio section is default carrier-to-noise ratio threshold value.
It should be noted that the corresponding default carrier-to-noise ratio threshold value of television signal transmission standard, for according to people in the art
The experience or agreement of member is pre-set.
It is that the lower limiting value in its pre-set carrier-to-noise ratio section is for example, being DVB-T2 in television signal transmission standard
25.1。
It is that the lower limiting value in its pre-set carrier-to-noise ratio section is in another example being DVB-C in television signal transmission standard
33。
Smart television determine the signal strength values of the corresponding programme signal of frequency point meet it is following in a condition when, determine
The corresponding programme signal of the frequency point is effective information：
The signal strength values of the corresponding programme signal of condition 1, frequency point are more than currently used television signal transmission standard pair
The upper limit value in the default sensitivity section answered；
The signal strength values of the corresponding programme signal of condition 2, frequency point are not more than the upper limit value in default sensitivity section and not
Less than the lower limiting value in default sensitivity section, and the carrier-to-noise ratio of the corresponding programme signal of the frequency point is not less than currently used electricity
The corresponding default carrier-to-noise ratio threshold value depending on signal transmission standard.
For example, being DVB-T2 in television signal transmission standard, it is -95.6dBm~-74dBm to preset sensitivity section；It is default
Carrier-to-noise ratio threshold value is 25.1；
When the signal strength values of the corresponding programme signal of frequency point are more than -74dBm, the corresponding programme signal of the frequency point is determined
For useful signal；
When the signal strength values of the corresponding programme signal of frequency point are less than -95.6dBm, the corresponding program letter of the frequency point is determined
Number be invalid signals；
The corresponding programme signal of frequency point signal strength values between -95.6dBm~-74dBm, then by analyzing the frequency
The signal quality of the corresponding programme signal of point, determines the carrier-to-noise ratio (C/N) of the programme signal, if the carrier-to-noise ratio of programme signal is not small
In 25.1, it is determined that the corresponding programme signal of the frequency point is useful signal, if the carrier-to-noise ratio of programme signal is less than 25.1, it is determined that
The corresponding programme signal of the frequency point is invalid signals.
For example, being DVB-C in television signal transmission standard, it is -69dBm~-65dBm to preset sensitivity section；It is default to carry
It is 33 to make an uproar than threshold value；
When the signal strength values of the corresponding programme signal of frequency point are more than -65dBm, the corresponding programme signal of the frequency point is determined
For useful signal；
When the signal strength values of the corresponding programme signal of frequency point are less than -69dBm, the corresponding programme signal of the frequency point is determined
For invalid signals；
The corresponding programme signal of frequency point signal strength values between -69dBm~-65dBm, then by analyzing the frequency point
The signal quality of corresponding programme signal determines the carrier-to-noise ratio (C/N) of the programme signal, if the carrier-to-noise ratio of programme signal is not less than
33, it is determined that the corresponding programme signal of the frequency point is useful signal, if the carrier-to-noise ratio of programme signal is less than 33, it is determined that the frequency point
Corresponding programme signal is invalid signals.
In embodiments of the present invention, smart television determines TV signal sources after normal condition, to prompt to use in a manner of preset
Family；
Wherein, preset mode is to be highlighted the icon of TV signal sources in signal source menu interface, or incite somebody to action
The icon of TV signal sources position in signal source menu interface is adjusted near preceding position.
For example, signal source menu interface as shown in Figure 4 A, including HDMI signal sources, usb signal source, TV signal sources；
When smart television determines that TV signal sources are normal condition, the icon of TV signal sources is shown by the way of highlighted.
Or, it is assumed that before judging TV signal source states, the icons of the TV signal sources position in signal source menu interface
As shown in Figure 4 A, it is ordered as second in signal source menu interface；After smart television determines TV signal sources for normal condition,
Sequence of the icon of TV signal sources in signal source menu interface is advanced to first, the signal source menu interface after adjustment is as schemed
Shown in 4B.
As shown in figure 5, the overall flow figure of instruction TV signal source states of the embodiment of the present invention.
Step 501, smart television upon actuation, obtain the country that user selects in navigation interface；
Step 502, smart television determine the corresponding television signal transmission standard of country selected using user；
Step 503, smart television determine the corresponding multiple frequency points of currently used television signal transmission standard；
Step 504 is directed to a frequency point, and smart television detects the signal strength values of the corresponding programme signal of the frequency point；
It is pre- that step 505, smart television judge whether the signal strength values are more than currently used television signal transmission standard
If the upper limit value in sensitivity section, if so, step 509 is executed, if it is not, executing step 506；
Whether step 506, smart television judge the signal strength values no more than the upper limit value and not less than default sensitivity
The lower limiting value in section, if so, step 507 is executed, if it is not, executing step 511；
Step 507, smart television determine the carrier-to-noise ratio of the corresponding programme signal of the frequency point；
Step 508, smart television judge whether the carrier-to-noise ratio corresponds to not less than currently used television signal transmission standard
Carrier-to-noise ratio threshold value, if so, execute step 509, if it is not, execute step 511；
Step 509, smart television determine that the corresponding programme signal of the frequency point is useful signal；
Step 510, smart television determine that TV signal sources are normal condition, and user is prompted in a manner of preset；
Step 511, smart television determine that the corresponding programme signal of the frequency point is invalid signals；
Step 512, smart television detect the signal strength values of the corresponding programme signal of next frequency point, and return to step 505.
It should be noted that if smart television detects the corresponding whole frequency points pair of currently used television signal transmission standard
The programme signal answered determines that the corresponding programme signal of whole frequency point is not useful signal, then the smart television determines TV signals
Source is abnormality.
Based on same inventive concept, a kind of smart television is additionally provided in the embodiment of the present invention, since smart television solves
The principle of problem is similar to instruction of the embodiment of the present invention method of TV signal source states, therefore the implementation of smart television can the side of ginseng
The implementation of method, overlaps will not be repeated.
As shown in fig. 6, the embodiment of the present invention provides a kind of smart television, including：At least one processing unit 600 and extremely
A few storage unit 601, wherein the storage unit 601 has program stored therein code, when said program code is by the processing
When unit 600 executes so that the processing unit 600 executes following process：
After smart television startup, the corresponding multiple frequency points of currently used television signal transmission standard are determined；Judge institute
It is the frequency point of useful signal that whether state in multiple frequency points, which has corresponding programme signal,；If so, determine that TV signal sources are normal condition,
And user is prompted in a manner of preset.
Optionally, the processing unit 600, is specifically used for：
Judge whether the corresponding programme signal of the frequency point is useful signal according to following manner：
The smart television detects the signal strength values of the corresponding programme signal of the frequency point；
If the signal strength values are more than the upper limit value in the corresponding default sensitivity section of the television signal transmission standard,
The smart television determines that the corresponding programme signal of the frequency point is useful signal；
If the signal strength values are not more than the upper limit value, and not less than the lower limiting value in the default sensitivity section
When, the smart television determines the carrier-to-noise ratio of the corresponding programme signal of the frequency point；It is not less than the TV in the carrier-to-noise ratio
When the corresponding default carrier-to-noise ratio threshold value of signal transmission standard, determine that the corresponding programme signal of the frequency point is useful signal.
Optionally, the processing unit 600, is specifically used for：
The frequency point is locked by tuner, and obtains the corresponding programme signal of the frequency point that the tuner is detected
Signal strength values.
Optionally, the processing unit 600, is specifically used for：
The corresponding programme signal of the frequency point is demodulated by Demod, determines the corresponding programme signal of the frequency point
Carrier-to-noise ratio.
Optionally, the preset mode is that the icon of TV signal sources described in signal source menu interface is carried out highlighted show
Show, or position is adjusted near preceding position in signal source menu interface by the icon of the TV signal sources.
As shown in fig. 7, the embodiment of the present invention also provides a kind of smart television, including：
Determining module 701, for smart television upon actuation, determine that currently used television signal transmission standard corresponds to
Multiple frequency points；
Judgment module 702, for judging that it is the frequency of useful signal whether to have corresponding programme signal in the multiple frequency point
Point；
Processing module 703, for when it is the frequency point of useful signal to have corresponding programme signal, determining that TV signal sources are just
Normal state, and user is prompted in a manner of preset.
Optionally, the judgment module 702, is specifically used for：
Judge whether the corresponding programme signal of the frequency point is useful signal according to following manner：
The smart television detects the signal strength values of the corresponding programme signal of the frequency point；
If the signal strength values are more than the upper limit value in the corresponding default sensitivity section of the television signal transmission standard,
The smart television determines that the corresponding programme signal of the frequency point is useful signal；
If the signal strength values are not more than the upper limit value, and not less than the lower limiting value in the default sensitivity section
When, the smart television determines the carrier-to-noise ratio of the corresponding programme signal of the frequency point；It is not less than the TV in the carrier-to-noise ratio
When the corresponding default carrier-to-noise ratio threshold value of signal transmission standard, determine that the corresponding programme signal of the frequency point is useful signal.
Optionally, the judgment module 702, is specifically used for：
The frequency point is locked by tuner, and obtains the corresponding programme signal of the frequency point that the tuner is detected
Signal strength values.
Optionally, the judgment module 702, is specifically used for：
The corresponding programme signal of the frequency point is demodulated by Demod, determines the corresponding programme signal of the frequency point
Carrier-to-noise ratio.
Optionally, the preset mode is that the icon of TV signal sources described in signal source menu interface is carried out highlighted show
Show, or position is adjusted near preceding position in signal source menu interface by the icon of the TV signal sources.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method of instruction TV signal source states, which is characterized in that this method includes：
Smart television upon actuation, determines the corresponding multiple frequency points of currently used television signal transmission standard；
The smart television judges that it is the frequency point of useful signal whether to have corresponding programme signal in the multiple frequency point；
If so, the smart television determines that TV signal sources are normal condition, and user is prompted in a manner of preset.
2. the method as described in claim 1, which is characterized in that the smart television judges the frequency point pair according to following manner
Whether the programme signal answered is useful signal：
The smart television detects the signal strength values of the corresponding programme signal of the frequency point；
If the signal strength values are more than the upper limit value in the corresponding default sensitivity section of the television signal transmission standard, described
Smart television determines that the corresponding programme signal of the frequency point is useful signal；
If the signal strength values be not more than the upper limit value, and not less than the default sensitivity section lower limiting value when, institute
State the carrier-to-noise ratio that smart television determines the corresponding programme signal of the frequency point；It is passed not less than the TV signal in the carrier-to-noise ratio
When the corresponding default carrier-to-noise ratio threshold value of defeated standard, determine that the corresponding programme signal of the frequency point is useful signal.
3. method as claimed in claim 2, which is characterized in that the smart television detects the corresponding programme signal of the frequency point
Signal strength values, including：
The smart television obtains the corresponding program letter of the frequency point that the tuner is detected by tuner locked frequency points
Number signal strength values.
4. method as claimed in claim 2, which is characterized in that the smart television determines the corresponding programme signal of the frequency point
Carrier-to-noise ratio, including：
The smart television demodulates the corresponding programme signal of the frequency point by Demod, determines that the frequency point is corresponding
The carrier-to-noise ratio of programme signal.
5. the method as described in Claims 1 to 4 is any, which is characterized in that the preset mode is by signal source menu circle
The icon of TV signal sources described in face is highlighted, or by the icon of the TV signal sources in signal source menu interface
Position is adjusted near preceding position.
6. a kind of smart television, which is characterized in that the smart television includes：It at least one processing unit and at least one deposits
Storage unit, wherein the storage unit code that has program stored therein makes when said program code is executed by the processing unit
It obtains the processing unit and executes following process：
After smart television startup, the corresponding multiple frequency points of currently used television signal transmission standard are determined；Judge described more
It is the frequency point of useful signal whether to have corresponding programme signal in a frequency point；If so, determine that TV signal sources are normal condition, and with
Preset mode prompts user.
7. smart television as claimed in claim 6, which is characterized in that the processing unit is specifically used for：
Judge whether the corresponding programme signal of the frequency point is useful signal according to following manner：
The smart television detects the signal strength values of the corresponding programme signal of the frequency point；
If the signal strength values are more than the upper limit value in the corresponding default sensitivity section of the television signal transmission standard, described
Smart television determines that the corresponding programme signal of the frequency point is useful signal；
If the signal strength values be not more than the upper limit value, and not less than the default sensitivity section lower limiting value when, institute
State the carrier-to-noise ratio that smart television determines the corresponding programme signal of the frequency point；It is passed not less than the TV signal in the carrier-to-noise ratio
When the corresponding default carrier-to-noise ratio threshold value of defeated standard, determine that the corresponding programme signal of the frequency point is useful signal.
8. smart television as claimed in claim 7, which is characterized in that the processing unit is specifically used for：
The frequency point is locked by tuner, and obtains the signal for the corresponding programme signal of the frequency point that the tuner is detected
Intensity value.
9. smart television as claimed in claim 7, which is characterized in that the processing unit is specifically used for：
The corresponding programme signal of the frequency point is demodulated by Demod, determines the load of the corresponding programme signal of the frequency point
It makes an uproar ratio.
10. the smart television as described in claim 6~9 is any, which is characterized in that the preset mode is by signal source dish
The icon of TV signal sources described in single interface is highlighted, or by the icon of the TV signal sources in signal source menu circle
Position is adjusted near preceding position in face.
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| CN201810377746.2A CN108600857B (en) | 2018-04-25 | 2018-04-25 | Method for indicating state of TV signal source and smart television |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant after: Hisense Visual Technology Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
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