Multi-window-frame synchronous-twinkling method and device

Abstract

The invention discloses a multi-window-frame synchronous-twinkling method, which comprises the following steps of: presetting frame-displaying time length and frame-concealing time length; synchronizing the system time of each processor node; obtaining the current system time of each processor node; judging whether a frame corresponding to each processor node is displayed at the current system time or not according to the current system time, the frame-displaying time length and the frame-concealing time length; if so, then displaying the frame corresponding to each processor node and returning to the step of obtaining the system time; and if not, then concealing the frame corresponding to each processor node and returning to the step of obtaining the system time. The invention also discloses a multi-window-frame synchronous-twinkling device, so that the data interaction between each processor node and a synchronization server is reduced, the requirement on a network is lowered, the reliability of a system is improved, and the practicability of the system is improved.

Description

technical field [0001] The invention relates to display control of a display screen, in particular to a method and device for synchronously flashing multi-window frames. Background technique [0002] Nowadays, many IP cameras support the function of intrusion detection and alarm, and many IP video displays are involved in the multi-computer multi-screen splicing processor system. Most of the IP video displays use the flickering method of the IP video window frame. But in the multi-computer multi-screen splicing processor system, since the multi-screen processor display rendering is not completed by the same computer, this involves how to let multiple computers complete the prompt process of synchronous flashing. [0003] The traditional synchronization method is based on the synchronization server. The multi-computer multi-screen splicing processor node (one node is one computer) that needs to be synchronized sends a request to the synchronization server, and the synchroniz...

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Problems solved by technology

[0004] The problem with the traditional solution is that additional synchronization services are needed to support the synchronous flickering of the frame. When the synchronization server fails to work, all processor nodes cannot work normally, which cannot show the advantages of a distributed system and affect the availability of the entire system; in addition, due to Traditional solutions are based on load considerations. Synchronization services require uninterrupted processing of multi-node (such as 100 nodes), multiple windows (such as 16 windows), and high-frequency (such as 25 times / second) synchronization requests. The amount of data interaction is very large (if there are 40 computers, each computer has 16 windows, and the flicker frequency of each window is 25 times / S, then 40*16*2*25=32000 information interactions are required), The processing speed of the synchronization service and the stability of the network are too high, and a slight network jitter will have a great impact on the synchronization effect

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