Large screen display system having dual controller and implementation method thereof

Abstract

The invention discloses a large screen display system provided with two controllers. The system is composed of a large screen jointing wall set and two controller sets of same settings, wherein the two controller sets comprise a master controller and a backup controller, the jointing wall is provided with a digital input channel and an analogue input channel, the digital input channel is connected with the master controller via a digital line, the analogue input channel is connected with the output interface of the backup controller via an analogue line, the master controller and the backup controller are connected via network devices. The invention further discloses a method for realizing the large screen display system. When the master controller has faults, the large screen display system automatically switches to the backup controller, to avoid interrupting the distribution of control room caused by the faults of controller, thereby improving distribution safety.

Description

technical field [0001] The present invention relates to a large-screen display system, in particular to a large-screen display system with dual controllers; in addition, it also relates to a redundant backup method for large-screen software splicing controllers in the large-screen display system. Background technique [0002] At present, a large-screen display device formed by splicing multiple screens is widely used in control rooms, such as power dispatching, public security emergency command, or large-scale enterprise production process control. It provides an integrated display platform for various graphic information and provides command Scheduling brings convenience and becomes an indispensable device increasingly. The failure of large-screen system equipment will affect the normal dispatching and command work. Safety is the first priority for these departments, so ensuring the uninterrupted operation of the large-screen system has become appears to be very important. ...

AI Technical Summary

Problems solved by technology

In particular, window display applications are inseparable from the controller. High-resolution applications in command and dispatch, such as maps and network topology maps, require the controller to complete image processing and drive display. Once the controller fails, the large-screen system cannot be used. , it will cause a direct threat to the safety of command and dispatch work in severe cases, so the controller in the large-screen system must have a backup plan

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