CN109995963A - A kind of wireless synchronization time-code method - Google Patents
A kind of wireless synchronization time-code method Download PDFInfo
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- CN109995963A CN109995963A CN201910415376.1A CN201910415376A CN109995963A CN 109995963 A CN109995963 A CN 109995963A CN 201910415376 A CN201910415376 A CN 201910415376A CN 109995963 A CN109995963 A CN 109995963A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/06—Generation of synchronising signals
- H04N5/067—Arrangements or circuits at the transmitter end
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of wireless synchronization time-code methods, include the following steps: time-code wired input, time-code coding, time-code wireless transmission, time-code decoding and digital wired synchronization；The beneficial effects of the present invention are, first, small-sized time-code synchronizing device in wireless synchronization time-code method of the present invention, with mode switch function, host or slave mode can be switched, user at least only needs two time-code synchronizers that synchronous purpose can be completed in use, significantly reduces time-code stepped cost in this way；Secondly, wireless synchronization time-code method of the invention, which only needs small-sized time-code synchronizing device to be connected to each time-code receiving device, can be realized time-code synchronization, without setting up connecting line between recording and picture pick-up device, and decoding apparatus when not needing to buy expensive dedicated wired synchronization, significantly improve the synchronous deployment operational efficiency of time-code.
Description
Technical field
The present invention relates to timing code simultaneous techniques field more particularly to a kind of wireless synchronization time-code methods.
Background technique
Timing code (Timecode) is video camera when recording image signal, for the unique of each width image recording
Time encoding, be a kind of digital signal applied to stream.The signal is that each frame in video distributes a number, to
Indicate hour, minute, second and frame number.The equipment such as now all of digital recording or digital camera all have timing code function
Energy.Currently, synchronous there are mainly two types of the mode of existing timing code.It is synchronized firstly, carrying out timing code using wired mode, it should
The timing code synchronous error of mode is smaller, but has the disadvantage that timing code synchronizes and needs to can no longer meet day using data line
Beneficial popular wireless data connection mode.It is synchronized secondly, carrying out timing code using offline mode, which is using synchronous in advance
Timing code, the then mode of each self-operating of time-code device, but offline mode is easy to produce error, therefore can generate the synchronization of mistake
Signal.
Summary of the invention
1. the technical issues that need to address
The technical problem to be solved in the invention is, provides a kind of wireless synchronization time-code method, same using small-sized time-code
Device is walked, host mode and slave mode are switched to by mode switch, video camera or recorder are connected, to solve the prior art
The defect of middle wired mode and offline mode reaches the time code signal of synchronous all devices (equipment such as recording or camera shooting)
Purpose.
2. technical solution
To achieve the goals above, it the technical scheme is that a kind of wireless synchronization time-code method, including walks as follows
It is rapid:
Step 1, it is host mode and slave mode by function switch by time-code synchronizing device, obtains time-code synchronizing device master
Machine and time-code synchronizing device slave；
Step 2, time-code synchronizing device host is connect by time-code line synchro with time-code occurrence of equipment, and uses wired mode
Obtain the input time code signal of the time-code occurrence of equipment；
Step 3, the time-code synchronizing device host encodes the input time code signal of step 2, when being converted into being wirelessly input to
Code signal；
Step 4, the time-code synchronizing device host will be wirelessly input to time-code letter by wireless communication mode described in step 3
It number is transmitted to time-code synchronizing device slave, the time-code synchronizing device slave obtains wireless output time code signal；
Step 5, the time-code synchronizing device slave decodes the wireless output time code signal that step 4 obtains, and is converted into defeated
Time code signal out；
Step 6, the time-code synchronizing device slave is connect by time-code line synchro with time-code receiving device, and using wired
The output time code signal of step 5 is transmitted to the time-code receiving device by mode.
Preferably, the time-code occurrence of equipment and time-code receiving device are in digital recorder or digital photographing apparatus
One kind.
Preferably, the quantity of the time-code synchronizing device slave is not less than the quantity of the time-code synchronizing device host,
And several time-code synchronizing device slaves are connected with the corresponding time-code receiving device.
Preferably, the format of time-code includes LTC format, VITC format and SMPTE format.
3. beneficial effect
In conclusion the beneficial effects of the present invention are:
(1) wireless synchronization time-code method of the invention transmits time-code in such a way that timing is wirelessly transferred, thus
Ensure that time-code does not have error between time-code synchronizing device host and time-code synchronizing device slave, guarantees time-code receiving device and time-code
Time code signal between occurrence of equipment is synchronous；
(2) the small-sized time-code synchronizing device in wireless synchronization time-code method of the present invention has mode switch function, can cut
Change owner machine or slave mode, user at least only need two time-code synchronizers that synchronous mesh can be completed in use
, time-code stepped cost is significantly reduced in this way；
(3) wireless synchronization time-code method of the invention only needs small-sized time-code synchronizing device to be connected to each time-code receiving device
It is synchronous that time-code can be realized, without setting up connecting line between recording and picture pick-up device, and do not need to buy expensive dedicated
Decoding apparatus when wired synchronization significantly improves the synchronous deployment operational efficiency of time-code.
Detailed description of the invention
Fig. 1 is a kind of work flow diagram of wireless synchronization time-code method of the present invention.
Specific embodiment
The following is further explained with reference to the attached drawings the embodiment of the present invention.
It refers to shown in attached drawing 1, a kind of wireless synchronization time-code method includes the following steps:
Step 1, it is host mode and slave mode by function switch by time-code synchronizing device, obtains time-code synchronizing device master
Machine and time-code synchronizing device slave；
Step 2, time-code synchronizing device host is connect by time-code line synchro with time-code occurrence of equipment, and uses wired mode
Obtain the input time code signal of the time-code occurrence of equipment；
Step 3, the time-code synchronizing device host encodes the input time code signal of step 2, when being converted into being wirelessly input to
Code signal；
Step 4, the time-code synchronizing device host will be wirelessly input to time-code letter by wireless communication mode described in step 3
It number is transmitted to time-code synchronizing device slave, the time-code synchronizing device slave obtains wireless output time code signal；
Step 5, the time-code synchronizing device slave decodes the wireless output time code signal that step 4 obtains, and is converted into defeated
Time code signal out；
Step 6, the time-code synchronizing device slave is connect by time-code line synchro with time-code receiving device, and using wired
The output time code signal of step 5 is transmitted to the time-code receiving device by mode.
Preferably, the time-code occurrence of equipment and time-code receiving device are in digital recorder or digital photographing apparatus
One kind.
Preferably, the quantity of the time-code synchronizing device slave is not less than the quantity of the time-code synchronizing device host,
And several time-code synchronizing device slaves are connected with the corresponding time-code receiving device.
Preferably, the format of time-code includes LTC format, VITC format and SMPTE format.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all utilizations
Equivalent structure transformation made by present specification, directly or indirectly with the technology neck for being attached to other Related products
Domain is included within the scope of the present invention.
Claims (4)
1. a kind of wireless synchronization time-code method, which comprises the steps of:
Step 1, by time-code synchronizing device by function switch be host mode and slave mode, obtain time-code synchronizing device host and
Time-code synchronizing device slave；
Step 2, time-code synchronizing device host is connect by time-code line synchro with time-code occurrence of equipment, and is obtained using wired mode
The input time code signal of the time-code occurrence of equipment；
Step 3, the time-code synchronizing device host encodes the input time code signal of step 2, is converted into being wirelessly input to time-code letter
Number；
Step 4, the time-code synchronizing device host will be wirelessly input to time code signal biography by wireless communication mode described in step 3
Time-code synchronizing device slave is transported to, the time-code synchronizing device slave obtains wireless output time code signal；
Step 5, the time-code synchronizing device slave decodes the wireless output time code signal that step 4 obtains, when being converted into output
Code signal；
Step 6, the time-code synchronizing device slave is connect by time-code line synchro with time-code receiving device, and uses wired mode
The output time code signal of step 5 is transmitted to the time-code receiving device.
2. a kind of wireless synchronization time-code method according to claim 1, it is characterised in that: the time-code occurrence of equipment and when
Code receiving device is one of digital recorder or digital photographing apparatus.
3. a kind of wireless synchronization time-code method according to claim 1, it is characterised in that: the time-code synchronizing device slave
Quantity be not less than the time-code synchronizing device host quantity, and several time-code synchronizing device slaves with it is corresponding described when
Code receiving device connection.
4. a kind of wireless synchronization time-code method according to claim 1, it is characterised in that: the format of time-code includes LTC lattice
Formula, VITC format and SMPTE format.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910415376.1A CN109995963A (en) | 2019-05-17 | 2019-05-17 | A kind of wireless synchronization time-code method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910415376.1A CN109995963A (en) | 2019-05-17 | 2019-05-17 | A kind of wireless synchronization time-code method |
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| CN109995963A true CN109995963A (en) | 2019-07-09 |
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| CN201910415376.1A Pending CN109995963A (en) | 2019-05-17 | 2019-05-17 | A kind of wireless synchronization time-code method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114785999A (en) * | 2022-04-12 | 2022-07-22 | 先壤影视制作(上海)有限公司 | Real-time virtual shooting synchronous control method and system |
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| CN201255995Y (en) * | 2008-05-23 | 2009-06-10 | 北京分众无线传媒技术有限公司 | Multimedia playing machine group |
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2019
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| CN114785999A (en) * | 2022-04-12 | 2022-07-22 | 先壤影视制作(上海)有限公司 | Real-time virtual shooting synchronous control method and system |
| CN114785999B (en) * | 2022-04-12 | 2023-12-15 | 先壤影视制作(上海)有限公司 | Real-time virtual shooting synchronous control method and system |
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