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KVM device for realizing quick switching

A fast switching and switcher technology, applied in the field of electronic control, can solve the problems of complex structure, high cost, poor seismic performance, etc., and achieve the effect of improving the overall seismic performance, improving seismic performance, and convenient and flexible use

Active Publication Date: 2010-06-16
CHINA TECHENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

High cost, complex structure, poor seismic performance

Method used

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  • KVM device for realizing quick switching
  • KVM device for realizing quick switching
  • KVM device for realizing quick switching

Examples

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Embodiment Construction

[0048] The KVM switch of the present invention can connect up to 6 hosts to realize multi-host screen switching. There are 3 switching modes in total. During the development process, special hardware circuits and software are designed to realize its functions. The working principle of KVM is as follows figure 1 shown. Assume that the number of hosts connected to KVM is 6, and the resolution of each host is 1280×1024.

[0049] Automatic switching mode, such as figure 1As shown, we virtualize 6 screens into a large screen, and then divide each screen into 1280×1024 points according to the resolution, and the position of the mouse will move on these points. The KVM switch analyzes the displacement and movement of the mouse, and broadcasts the position of the mouse on the virtual coordinates ((n*1280+x), y) to the host computer of the operation station through the RS-422 bus, and the software of the operation station determines the value of n Which host is operated by the mouse...

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Abstract

The invention relates to a KVM device for realizing quick switching. The KVM device can realize the smooth and quick automatic switching between the keyboard and the mouse, and supports two manual switching modes of hardware button switching and software button switching, thereby greatly enhancing the flexibility and the convenience for operation. The KVM switch is connected with 6 host machines.Since the 6 host machines in use need to display simultaneously, only the mouse and the keyboard need to be switched, and the displays are not switched; and thus, each host machine still reserves therespective display, and the KVM terminal is not provided with a display. When the KVM works, the mouse can continuously and smoothly move and automatically switch on the displays of the host machines. In the aspect of switching modes, the invention not only reserves the traditional manual switching mode through the KVM switching hardware, but also adds two switching modes: manual switching through software buttons on host machine screens, and automatic sliding switching through the mouse.

Description

Technical field: [0001] The invention is a KVM device for fast switching, in particular an output device for transferring data from a processor to an output device. It belongs to the field of electric control. Background technique: [0002] KVM is the acronym for Keyboard, Video, and Mouse. The main purpose of a KVM switch is to allow a group of KVM devices to connect to multiple hosts, thereby controlling multiple hosts or servers. [0003] After decades of development, KVM system technology has become increasingly mature. From the original analog KVM switch to the current digital KVM system that can realize remote management. By 2007, the digital KVM system has been relatively mature and gradually being widely used. A typical digital KVM system consists of 6 parts: KVM digital switch, interface converter, power management module, TCP / IP network, authentication server and management terminal. One end of the interface converter is connected to the keyboard, display and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/023G06F3/033G06F3/038
Inventor 王道斌池立勇郭富强刘伟左新白涛柏祥基
Owner CHINA TECHENERGY
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