Method and system for synchronously controlling multiple graph signal generators

A graphic signal and synchronous control technology, applied in the direction of time division multiplexing system, multiplexing communication, instrument, etc., can solve the problems of different clock references, unable to guarantee the consistent operation of the graphic signal generator, etc., and achieve low cost Effect

Active Publication Date: 2018-04-03
WUHAN JINGCE ELECTRONICS GRP CO LTD
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Problems solved by technology

The disadvantage is that the local clock reference of each graphic signal generator is different. After a long time of error accumulation, it is impossible to guarantee that all graphic signal generators will operate consistently after a long period of operation.

Method used

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  • Method and system for synchronously controlling multiple graph signal generators

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail:

[0029] In the present invention, at least 2 graphic signal generators are networked through switches, and a fixed but different IP address is set for each graphic signal generator; wherein, the at least 2 graphic signal generators include a Programmable Logic Devices for Simultaneous Broadcast Packets;

[0030] Designate one of the graphic signal generators as the synchronizing machine, and the other graphic signal generators as the synchronized machines;

[0031] The synchronizing machine regularly sends synchronous broadcast packets to all synchronized machines in the local area network, and each of the synchronized machines performs image switching operations according to the synchronous broadcast packets.

[0032] Among them, the protocol of the synchronous broadcast packet includes: packet header, sequence number of the current cut pi...

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Abstract

The invention discloses a method for synchronously controlling multiple graph signal generators. The method comprises the following steps of: networking at least two programmable logic devices which both comprise a transmittable / receivable synchronous broadcast packet, appointing one graph signal generator as a synchronization machine and taking the other graph signal generators as synchronized machines; and regularly sending a network synchronous broadcast packet to all the synchronized machines in a local area network through an Ethernet switch, and after the synchronized machines receive the synchronous broadcast packet, realizing operation synchronization of the graph signal generators. The invention furthermore discloses a system for synchronously controlling multiple graph signal generators. According to the method and system, the aim of synchronous operation of synchronous generators is realized and PC synchronization is not needed, so that the production cost is reduced; the synchronization precision is improved and permanent synchronization can be ensured; the graph slicing asynchronization caused by network faults and network delay is solved; and the problem that the synchronous machines cannot be synchronized after faults is solved.

Description

technical field [0001] The invention relates to the field of display module production aging test, in particular to a method and system for synchronously controlling multiple graphic signal generators. Background technique [0002] New flat-panel display modules such as TFT-LCD and OLED are the main components of flat-panel displays. The manufacturing process is complex and requires nearly a hundred processes, so various defects will inevitably occur during the manufacturing process. In order to ensure the display quality and working stability of the flat-panel displays entering the market, it is usually necessary to perform an aging test on the flat-panel display modules on the production line. At present, when module manufacturers conduct aging tests on flat-panel display modules, in order to facilitate batch testing of flat-panel display modules and identify batch test results, for the convenience of testing and judgment, all graphic signal generators in the aging furnace...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14H04J3/06
CPCG06F3/1438H04J3/0635
Inventor 叶金平刘荣华万勤华
Owner WUHAN JINGCE ELECTRONICS GRP CO LTD
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