CN108712225A - A kind of method, apparatus, electronic equipment and computer readable storage medium obtaining time synchronization information - Google Patents
A kind of method, apparatus, electronic equipment and computer readable storage medium obtaining time synchronization information Download PDFInfo
- Publication number
- CN108712225A CN108712225A CN201810475776.7A CN201810475776A CN108712225A CN 108712225 A CN108712225 A CN 108712225A CN 201810475776 A CN201810475776 A CN 201810475776A CN 108712225 A CN108712225 A CN 108712225A
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- Prior art keywords
- network
- digital
- digital television
- terminal
- television signal
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0602—Systems characterised by the synchronising information used
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
Abstract
The present invention relates to a kind of method, apparatus, electronic equipment and computer readable storage mediums obtaining time synchronization information.This method includes：Detect the television channel signal of network digital TV terminal；In response to detecting that network digital TV terminal is in digital television channel, the validity of digital television signal is determined；And in response to determining that digital television signal is invalid so that network digital TV terminal obtains time synchronization information from Network Time Protocol server, so that network digital TV terminal is synchronized to current time.The embodiment of the present invention can be realized to be determined to go renewal time using different mode according to unlike signal condition come dynamic, efficiently solves the influence caused by user's operation caused by obtaining less than time synchronization information.
Description
Technical field
Present invention relates in general to field of information processing, and in particular to it is a kind of obtain time synchronization information method, apparatus,
Electronic equipment and computer readable storage medium.
Background technology
Network digital TV terminal is just obtaining increasingly extensive application.Here network digital TV terminal refers to net
Network access ability and the television terminal that digital television signal can be received.Major part network digital TV terminal is based at present
Linux system is developed, and the time of linux system acquiescence is 1970.However, many applications need effective time check, thus
Network digital TV terminal needs to obtain time or clock synchronization information, so as to synchronous with current time, to meet using need
It asks.
It notices in existing time synchronization operation, it, will if user's family does not connect effective digital television signal
Effective time can not be obtained always under digital television channel by user occur, need effective time check so as to cause some are accessed
Web content when malfunction.
Invention content
In view of the above-mentioned problems, the embodiment of the present invention provide it is a kind of obtaining the method, apparatus of time synchronization information, electronics is set
Standby and computer readable storage medium, realize according to unlike signal condition come dynamically determine to go renewal time using different mode,
Efficiently solve the influence caused by user's operation caused by obtaining less than time synchronization information.
In the first aspect of the present invention, a kind of method obtaining time synchronization information is provided.This method includes：Detect network
The television channel signal of digital TV terminal；In response to detecting that network digital TV terminal is in digital television channel, determine
The validity of digital television signal；And in response to determining that digital television signal is invalid so that network digital TV terminal is from net
Network time protocol server obtains time synchronization information, so that network digital TV terminal is synchronized to current time.
In certain embodiments, method further includes：In response to determining that digital television signal is effective, from digital television signal
Obtain time synchronization information.
In certain embodiments, method further includes further including：In response to detecting that network digital TV terminal is in non-number
Word television channel so that network digital TV terminal obtains time synchronization information from Network Time Protocol server.
In certain embodiments so that network digital TV terminal obtains time synchronization letter from Network Time Protocol server
Breath includes：Detect accessibility of the network digital TV terminal via network and Network Time Protocol server；And in response to inspection
It is reachable to measure Network Time Protocol server, time synchronization information is obtained from Network Time Protocol server via network.At certain
In a little embodiments, method further includes：Periodically current time information is stored in the memory of network digital TV terminal.
In certain embodiments, method further includes：The invalid and Network Time Protocol server in response to digital television signal
It is unreachable, the temporal information preserved in memory is obtained, to be used as time synchronization information for network digital TV terminal.
In certain embodiments, determine that the validity of digital television signal includes：It detects digital television channel and whether there is DTV
Signal；In response to digital television signal is not present, determine that digital television signal is invalid, and in response to there are DTV letters
Number, it detects and whether there is date schedule and/or TOT Time Offset Table in the transmission stream packets of digital television signal；And in response to
There is no date schedule and/or TOT Time Offset Table, determine that digital television signal is invalid, and in response to there are date-times
Table and/or TOT Time Offset Table determine that digital television signal is effective.
In certain embodiments, time synchronization information is obtained from digital television signal includes：From digital television signal
Date schedule and/or TOT Time Offset Table are extracted in transmission stream packets.
In the second aspect of the present invention, a kind of device obtaining time synchronization information is provided.The device includes：Detection is single
Member, the television channel signal for detecting network digital TV terminal；Determination unit, in response to detecting network digital electricity
It is in digital television channel depending on terminal, determines the validity of digital television signal；And acquiring unit, in response to determining number
Word TV signal is invalid so that and network digital TV terminal obtains time synchronization information from Network Time Protocol server, so as to
Network digital TV terminal is synchronized to current time.
In certain embodiments, device further includes：Second acquisition unit, in response to determining that digital television signal has
Effect, obtains time synchronization information from digital television signal.
In certain embodiments, device further includes：Third acquiring unit, in response to detecting network digital TV end
End is in nonnumeric television channel so that network digital TV terminal obtains time synchronization letter from Network Time Protocol server
Breath.
In certain embodiments, acquiring unit includes：Second detection unit, for detect network digital TV terminal via
The accessibility of network and Network Time Protocol server；And the 4th acquiring unit, in response to detecting that network time assists
It is reachable to discuss server, time synchronization information is obtained from Network Time Protocol server via network.
In certain embodiments, device further includes：Backup units, for current time information to be periodically stored in network number
In the memory of word television terminal.
In certain embodiments, device further includes：5th acquiring unit, for the invalid and net in response to digital television signal
Network time protocol server is unreachable, obtains the temporal information that is preserved in memory, using as time synchronization information for network
Digital TV terminal uses.
In certain embodiments, determination unit includes：Third detection unit whether there is for detecting digital television channel
It is inclined with the presence or absence of date schedule and/or time in digital television signal, and the transmission stream packets of detection digital television signal
Move table；And second determination unit, in response to digital television signal is not present, determine digital television signal be it is invalid, with
And in response to date schedule and/or TOT Time Offset Table is not present, determine that digital television signal is invalid.
In certain embodiments, device second acquisition unit is additionally operable to extract from the transmission stream packets of digital television signal
Date schedule and/or TOT Time Offset Table.
In the third aspect of the present invention, a kind of electronic equipment is provided.The electronic equipment includes：Processor；And memory,
It is stored with the readable instruction of processor, and instruction is when executed by the processor so that processor executes according to a first aspect of the present invention
Described method.
In the fourth aspect of the present invention, a kind of computer readable storage medium is provided, is stored with machine readable instruction,
Instruction makes machine execute described method according to a first aspect of the present invention when being executed by machine.
The method and device for obtaining synchronization time that the embodiment of the present invention proposes, can realize according to unlike signal condition
Carry out dynamic to determine to go renewal time using different mode.Decided whether by judging the validity of signal in digital television channel
It is switched to network mode or other patterns goes renewal time, user can be allowed not need digital television signal accessing come when updating
Between, it avoids because obtain causes the time not right less than information synchronization time, to which some of user are needed with the behaviour of time check
It impacts.
Description of the drawings
Fig. 1 shows the flow chart of the method according to an embodiment of the invention for obtaining time synchronization information；And
Fig. 2 shows the schematic devices according to an embodiment of the invention for obtaining time synchronization information.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.But those skilled in the art know, the invention is not limited in attached drawings and following reality
Apply example.
As described herein, term " comprising " and its various variants are construed as open-ended term, it means that " packet
It includes but is not limited to ".Term "based" is construed as " being based at least partially on ".Term " one embodiment " it is understood that
For " at least one embodiment ".Term " another embodiment " is construed as " at least one other embodiment ".
As previously mentioned, it is existing to the operations such as the crawl of target object on conveyer belt exist can not it is accurate, fast implement work
The defect of industry purpose, the embodiment of the present invention propose a kind of method, apparatus of the conveyer belt synchronized tracking for robot and are
System, can quickly realize the positioning and tracking of target object, reduce the fluctuation of speed, improve precision and the work of industrial system
Efficiency.
As previously mentioned, when existing network digital TV terminal carries out time synchronization operation, it usually will appear access
It malfunctions when the Web content for needing effective time check.In order to effectively solve the problems, such as this, the present invention proposes that the acquisition time is same
The method that step information synchronizes for network digital TV terminal time considers dynamic application various modes to obtain time synchronization
Information.
The embodiment of the present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 shows the flow chart of the method 100 of the acquisition time synchronization information of one embodiment of the present of invention.Method
100 can execute at network digital TV terminal, can also can be communicated and acquire with network digital TV terminal any
It is executed at the equipment of relevant information.
110, the television channel signal of network digital TV terminal is detected.Network digital TV terminal can have multiple
Television channel, such as digital channel, high-definition media interface (High Definition Multimedia Interface：
HDMI) channel etc., the channels AV etc..Then 120, in response to detecting that network digital TV terminal is in digital television channel,
Determine the validity of digital television signal.
It according to one embodiment of present invention, can be such as the validity for the determining digital television signal that gets off.Work as network digital
When television terminal is in digital television channel, detection digital television channel whether there is digital television signal.If there is no number
Word TV signal, it is determined that digital television signal is invalid.
On the other hand, if detecting digital television signal, the transport stream of digital television signal is further detected
(Transport Stream：TS it whether there is time synchronization information in) being grouped, for example, date schedule (Time&Date
table：) and/or TOT Time Offset Table (Time Offset Table TDT：TOT).
TDT tables and/or TOT tables is not present when detecting, it is determined that digital television signal is invalid, and if is detected
There are TDT tables and/or TOT tables, it is determined that digital television signal is effective.
130, in response to determining that digital television signal is invalid so that network digital TV terminal takes from Network Time Protocol
Business device obtains time synchronization information, so that network digital TV terminal is synchronized to current time.Specifically, when number is determined
When TV signal is invalid, network digital TV terminal can be detected via network and Network Time Protocol (Network Time
Protocol：NTP) the accessibility of server.If detecting that ntp server is reachable, obtained from ntp server via network
Current time.
According to one embodiment of present invention, if detecting that network digital TV terminal is in nonnumeric TV 110
Channel, such as the channels HDMI, the channels AV etc., then so that network digital TV terminal is obtained according to preceding method from ntp server
Time synchronization information.
According to one embodiment of present invention, if determining that digital television signal is effective 120, directly from DTV
Time synchronization information is obtained in signal.For example, extraction TDT tables and/or TOT tables from the TS of digital television signal groupings.
According to one embodiment of present invention, network digital TV terminal obtains time synchronization information and obtains current time
Later, periodically current time is saved in memory.For example, the temporal information in device can be updated storage by some cycles.
This is invalid in digital television signal and ntp server is inaccessible, provides a kind of back mechanism.At this point, can
With using the temporal information preserved in memory, to be used as time synchronization information for network digital TV terminal.
The technical solution proposed by the present invention for obtaining time synchronization information, provides a variety of time synchronization patterns, i.e. network
Access obtaining mode, effective digital TV signal obtaining mode and backup mode.The embodiment of the present invention is according to unlike signal
Condition carrys out dynamic and determines to go renewal time using different mode, for example, the validity by judging signal in digital television channel
To decide whether that switching at runtime goes renewal time to mode of network accessing or backup mode.This efficiently solve because obtain less than
Time synchronization information and cause to need the operation of time check to impact some of user.
Fig. 2 shows the signals according to an embodiment of the invention for obtaining the device 200 of time synchronization information
Figure, device 200 can be a part for network digital TV terminal, can also be that can be communicated simultaneously with network digital TV terminal
Acquire the equipment or part of it of relevant information.As shown, device 200 includes：Detection unit 210, for detecting network number
The television channel signal of word television terminal；Determination unit 220, in response to detecting that network digital TV terminal is in number
Television channel determines the validity of digital television signal；And acquiring unit 230, in response to determining digital television signal
In vain so that network digital TV terminal obtains time synchronization information from Network Time Protocol server, so as to network digital electricity
It is synchronized to current time depending on terminal.
In certain embodiments, device further includes backup units 240, for current time information to be periodically stored in network
In the memory of digital TV terminal and the 5th acquiring unit, for the invalid and network time in response to digital television signal
Protocol server is unreachable, obtains the temporal information that is preserved in memory, using as time synchronization information for network digital electricity
It is used depending on terminal.
In certain embodiments, device further includes：Second acquisition unit, in response to determining that digital television signal has
Effect, obtains time synchronization information, such as extract the date from the transmission stream packets of digital television signal from digital television signal
Timetable and/or TOT Time Offset Table；And third acquiring unit, in response to detecting that network digital TV terminal is in non-
Digital television channel so that network digital TV terminal obtains time synchronization information from Network Time Protocol server.
In certain embodiments, acquiring unit includes：Second detection unit, for detect network digital TV terminal via
The accessibility of network and Network Time Protocol server；And the 4th acquiring unit, in response to detecting that network time assists
It is reachable to discuss server, time synchronization information is obtained from Network Time Protocol server via network.
In certain embodiments, determination unit includes：Third detection unit whether there is for detecting digital television channel
It is inclined with the presence or absence of date schedule and/or time in digital television signal, and the transmission stream packets of detection digital television signal
Move table；And second determination unit, in response to digital television signal is not present, determine digital television signal be it is invalid, with
And in response to date schedule and/or TOT Time Offset Table is not present, determine that digital television signal is invalid.
It should be appreciated that each unit in device 200 is combined the method 100 that several embodiments describe with reference to figure 1 respectively
In each step it is corresponding.Therefore, it is equally applicable to device 200 above in association with the operation and feature of Fig. 1 descriptions and wherein wraps
The unit contained, and have same effect, detail repeats no more.
The embodiment of the present invention also provides a kind of electronic equipment.The equipment includes processor and memory, and memory is deposited
The readable instruction of processor is contained, instruction is when executed by the processor so that processor executes foregoing method.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored with machine readable instruction, refers to
Order makes the machine execute method having thus described the invention when being executed by machine.
It will be understood by those skilled in the art that in flow charts indicate or logic described otherwise above herein and/or
Step may be embodied in and appoint for example, being considered the order list of the executable instruction for realizing logic function
In what computer-readable medium, for instruction execution system, device or equipment (such as computer based system including processor
System or other can be from instruction execution system, device or equipment instruction fetch and the system executed instruction) use, or combine this
A little instruction execution systems, device or equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any can be with
Including, store, communicate, propagate, or transport program for instruction execution system, device or equipment or combine these instruction execution systems
System, device or equipment and the device used.
The more specific example (non-exhaustive list) of computer-readable medium includes following：It is connected up with one or more
Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or when necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or combination thereof are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to the above embodiments.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (18)
1. a kind of method obtaining time synchronization information, which is characterized in that including：
Detect the television channel signal of network digital TV terminal；
In response to detecting that the network digital TV terminal is in digital television channel, the effective of digital television signal is determined
Property；And
It is invalid in response to the determination digital television signal so that the network digital TV terminal is from Network Time Protocol service
Device obtains time synchronization information, so that the network digital TV terminal is synchronized to current time.
2. according to the method described in claim 1, it is characterized in that, further including：
It is effective in response to the determination digital television signal, the time synchronization information is obtained from the digital television signal.
3. according to the method described in claim 1, it is characterized in that, further including：
In response to detecting that the network digital TV terminal is in nonnumeric television channel so that the network digital TV is whole
End obtains time synchronization information from Network Time Protocol server.
4. according to the method described in claim 1, it is characterized in that, the network digital TV terminal takes from Network Time Protocol
Business device obtains time synchronization information：
Detect accessibility of the network digital TV terminal via network and Network Time Protocol server；And
In response to detecting that the Network Time Protocol server is reachable, via the network from the Network Time Protocol service
Device obtains the time synchronization information.
5. according to the described method of any one of claim 1-4, which is characterized in that further include：
Periodically current time information is stored in the memory of the network digital TV terminal.
6. according to the method described in claim 5, it is characterized in that, further including：
Invalid in response to the digital television signal and described Network Time Protocol server is unreachable, obtains in the memory
The temporal information preserved, to be used as time synchronization information for the network digital TV terminal.
7. according to the method described in claim 1, it is characterized in that, determining that the validity of digital television signal includes：
It detects the digital television channel and whether there is digital television signal；
In response to digital television signal is not present, determine that the digital television signal is invalid, and in response to there is number electricity
Depending on signal,
It detects and whether there is date schedule and/or TOT Time Offset Table in the transmission stream packets of the digital television signal；And
In response to the date schedule and/or TOT Time Offset Table is not present, determine that the digital television signal is invalid, and
In response to there are the date schedule and/or TOT Time Offset Table, determining that the digital television signal is effective.
8. according to the method described in claim 2, it is characterized in that, obtaining time synchronization information from the digital television signal
Including：
Date schedule and/or TOT Time Offset Table are extracted from the transmission stream packets of the digital television signal.
9. a kind of device obtaining time synchronization information, which is characterized in that including：
Detection unit, the television channel signal for detecting network digital TV terminal；
Determination unit, in response to detecting that the network digital TV terminal is in digital television channel, determining number electricity
Depending on the validity of signal；And
Acquiring unit, for invalid in response to the determination digital television signal so that the network digital TV terminal is from net
Network time protocol server obtains time synchronization information, so that the network digital TV terminal is synchronized to current time.
10. device according to claim 9, which is characterized in that further include：
Second acquisition unit, in response to the determination digital television signal it is effective, obtained from the digital television signal
The time synchronization information.
11. device according to claim 9, which is characterized in that further include：
Third acquiring unit, in response to detecting that the network digital TV terminal is in nonnumeric television channel so that
The network digital TV terminal obtains time synchronization information from Network Time Protocol server.
12. device according to claim 9, which is characterized in that the acquiring unit includes：
Second detection unit, for detect the network digital TV terminal via network and Network Time Protocol server can
Up to property；And
4th acquiring unit, in response to detecting that the Network Time Protocol server is reachable, via the network from institute
It states Network Time Protocol server and obtains the time synchronization information.
13. according to the device described in any one of claim 9-12, which is characterized in that further include：
Backup units, for periodically current time information to be stored in the memory of the network digital TV terminal.
14. device according to claim 13, which is characterized in that further include：
5th acquiring unit, can not for invalid in response to the digital television signal and described Network Time Protocol server
It reaches, obtains the temporal information preserved in the memory, to supply the network digital TV terminal as time synchronization information
It uses.
15. device according to claim 8, which is characterized in that the determination unit includes：
Third detection unit whether there is digital television signal, and the detection number for detecting the digital television channel
It whether there is date schedule and/or TOT Time Offset Table in the transmission stream packets of word TV signal；And
Second determination unit, in response to digital television signal is not present, determining that the digital television signal is invalid, and
In response to the date schedule and/or TOT Time Offset Table is not present, determine that the digital television signal is invalid.
16. device according to claim 10, which is characterized in that the second acquisition unit is additionally operable to from the number electricity
Depending on extracting date schedule and/or TOT Time Offset Table in the transmission stream packets of signal.
17. a kind of electronic equipment, which is characterized in that including：
Processor；And
Memory, is stored with the readable instruction of the processor, and described instruction makes described when being executed by the processor
Processor executes the method according to any one of claim 1-8.
18. a kind of computer readable storage medium, which is characterized in that it is stored with machine readable instruction, described instruction by
The machine makes the machine execute the method according to any one of claim 1-8 when executing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810475776.7A CN108712225B (en) | 2018-05-17 | 2018-05-17 | Method and device for acquiring time synchronization information, electronic equipment and computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810475776.7A CN108712225B (en) | 2018-05-17 | 2018-05-17 | Method and device for acquiring time synchronization information, electronic equipment and computer readable storage medium |
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| CN108712225B CN108712225B (en) | 2020-09-25 |
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Cited By (1)
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| CN108712225B (en) | 2020-09-25 |
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