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KVM (Keyboard, Video and Mouse) system based on mouse synchronization method

A mouse and switching system technology, applied in the field of KVM systems, can solve the problems of delayed mouse operation, unresponsiveness, and excessive position deviation.

Inactive Publication Date: 2014-12-17
SHAANXI HI-TECH IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to factors such as network delay or the resolution of the controlled machine is not within the controllable range of KVM, traditional KVM has problems such as excessive deviation between the mouse of the controlled machine and the mouse of the host computer in terms of mouse synchronization, delayed or even unresponsive mouse operations, etc.

Method used

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  • KVM (Keyboard, Video and Mouse) system based on mouse synchronization method

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Experimental program
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Embodiment Construction

[0011] (1) Control host client

[0012] The KVM system designed in this paper is based on the B / S framework, and controls the I / O devices such as mouse, keyboard and monitor combined by the host computer. Call the operation interface through the Web page. The interface receives the screen image of the controlled machine through the TCP / IP network and decodes and displays it. At the same time, it detects the local mouse and keyboard events, and sends the data to the KVM switching system. Since the video stream sending load of the controlled machine reaches 5 Mb / s-10 Mb / s, in order to avoid mouse data delay, the system uses an independent TCP / IP connection to send mouse and keyboard data.

[0013] (2) KVM switching system

[0014] The core of the KVM switching system is: an embedded processor that runs the main kernel program and server program, and connects multiple controlled machines through the HPI interface for switching control. The processor network receives the mouse ...

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Abstract

The invention specifically relates to a KVM (Keyboard, Video and Mouse) system based on a mouse synchronization method. The KVM system based on the mouse synchronization method is based on B / S (Browser / Server) architecture, and a control host is combined with a mouse, a keyboard, a display and the like; an operating interface is called through a Web page; the system comprises 3 modules, namely, a client running on the control host, a KVM switching system which is connected with a plurality of controlled machines, and an HID (Human Interface Device) control module which is connected with the controlled machines through a USB (Universal Series Bus) interface and can be used for simulating HID equipment. A rapid and accurate KVM remote mouse synchronization method is provided. High-speed transmission of data is realized by adopting a USB2.0 interface, and the conventional relative mouse synchronization way is improved by adding self-adaptive 'residual process' and a double-byte coordinate expression method, so that an absolute mouse synchronization way is realized. As proved by a testing result, by adopting the method, the accuracy of mouse positioning can be increased, and mouse transactions can be processed more rapidly through the system.

Description

technical field [0001] The invention specifically relates to a KVM system based on a mouse synchronization method. Background technique [0002] KVM is an abbreviation combination of keyboard (Keyboard), monitor (Video), and mouse (Mouse). Due to factors such as network delay or the resolution of the controlled machine is not within the controllable range of KVM, traditional KVM has problems such as excessive deviation between the position of the controlled machine mouse and the host mouse in terms of mouse synchronization, delayed or even unresponsive mouse operations. Therefore, improving the accuracy and timeliness of mouse synchronization has become an important content in the development of KVM technology. At present, the USB interface that supports universal connection of devices and has a high transmission rate has become the mainstream way for peripherals to connect to PC hosts. Contents of the invention [0003] The present invention aims to provide a synchronou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/033G06F3/038
Inventor 王耀斌
Owner SHAANXI HI-TECH IND CO LTD
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