Time synchronization method for plurality of lighting master controllers and realization device of time synchronization method

A technology of time synchronization and lighting, applied in the direction of instruments, static indicators, cathode ray tube indicators, etc., can solve problems such as easy packet loss, increased cost, low picture integrity or consistency, and achieve integrity and practicality Strong performance and high synchronization accuracy

Active Publication Date: 2013-02-06
四川九洲投资控股集团有限公司
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Problems solved by technology

[0004] However, the time accuracy of the RTC real-time time chip can only reach the second level, which cannot well meet the time synchronization requirements of the millisecond-level frame playback rate in the lighting control field, so that the integrity or consistency of the picture is not high; in addition, In the field of lighting control, the distance between the main controllers that need time synchronization is not fixed, and the distance between each main controller may be very far. At this time, the network connection wiring is very inconvenient, and it also increases the cost, and due to the long-distance network transmission The delay is large, and it is easy to lose packets, so the time synchronization through the network cannot meet the synchronization requirements when the main controllers are far apart

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  • Time synchronization method for plurality of lighting master controllers and realization device of time synchronization method

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[0043] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0044] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0045] Combine below figure 1 The method steps and principles of the present invention are described.

[0046] The invention utilizes GPS time to realize time synchronization among multiple main controllers in the lighting control field. To use the method in the present invention, firstly, the UART inside each main controller needs to be connected to a GPS receiver respectively.

[0047] Method among the present invention mainly comprises: ...

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Abstract

The invention discloses a time synchronization method for a plurality of lighting master controllers and a realization device of the time synchronization method, relates to a time synchronization method for a plurality of master controllers in a lighting control system, and aims to provide a precise synchronization method of a plurality of lighting master controllers in an off-line playing mode. The time synchronization method comprises the following steps: obtaining program beginning time T1; after the program beginning time T1 is obtained, obtaining current GPS (global positioning system) time T2; calculating time difference T=T2-T1; determining the playing of an nth file in a playing list at the current GPS time T2; and controlling lighting master control equipment to play the file from the offset position of the nth file.

Description

technical field [0001] The invention relates to time synchronization technology among multiple master controllers in a lighting control system. Background technique [0002] In the field of lighting control, multiple main lighting controllers are often used to control the playback of different parts of the same lighting picture at the same time, or multiple main controllers are placed in different places to simultaneously control the lighting picture to play the same content at the same time. Whether it is the first multi-master controller working mode of the lighting picture or the second working mode, the synchronization between multi-master controllers is the key to realizing the integrity or consistency of the playback picture. [0003] What the existing synchronization technology adopts is RTC real-time time chip or network to carry out synchronization. [0004] However, the time accuracy of the RTC real-time time chip can only reach the second level, which cannot wel...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14G09G3/36G09G5/14
Inventor 王东越曹孝坤索国锋邢保振吕昱
Owner 四川九洲投资控股集团有限公司
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