A circuit and system for one-way remote transmission of keyboard and mouse signals

Abstract

The embodiment of the invention provides a circuit and system for one-way remote transmission of keyboard and mouse signals. The circuit and system are used for meeting the requirements for remote operation in emergency disposal. The circuit comprises a first signal plug, a first conversion circuit, a keyboard and mouse signal simulation circuit and a second signal plug; the first conversion circuit is used for converting keyboard and mouse signals received from a transfer host through the first signal plug into serial signals; the transfer host receives keyboard and mouse signals sent by emergency disposal personnel through a rear-end host; the keyboard and mouse signal simulation circuit is used for receiving serial signals through a signal receiving end of the keyboard and mouse signalsimulation circuit, decoding and converting the serial signals into keyboard control signals and mouse control signals, and sending the keyboard control signals and the mouse control signals to a target host through the second signal plug; the signal transmitting end of the keyboard and mouse signal simulation circuit is suspended; wherein the target host and the transfer host are located at the site where a network security event occurs.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a circuit and system for one-way remote transmission of keyboard and mouse signals. Background technique [0002] At present, network security incidents occur frequently and are distributed all over the country. There is a serious shortage of experienced emergency response personnel, and it is often difficult to arrive at the scene for disposal as soon as a network security incident occurs. [0003] Although it is possible to monitor the site through remote video and use a USB keyboard and mouse device to process the site, or to monitor the site through remote video and use a PS2 keyboard and mouse device to process the site, although both the USB keyboard and mouse protocol and the PS2 keyboard and mouse protocol can use direct transmission The method of transmission is to extend the USB cable and PS2, but the extended transmission distance is far from meeting the re...

AI Technical Summary

Problems solved by technology

[0002] At present, network security incidents occur frequently and are distributed all over the country. There is a serious shortage of experienced emergency response personnel, and it is often difficult to arrive at the scene for disposal as soon as a network security incident occurs.

[0003] Although it is possible to monitor the site through remote video and use a USB keyboard and mouse device to process the site, or to monitor the site through remote video and use a PS2 keyboard and mouse device to process the site, although both the USB keyboard and mouse protocol and the PS2 keyboard and mouse protocol can use direct transmission Transmission by means of transmission, that is, to extend the USB cable and PS2, but the extended transmission distance is far from meeting the requirements of remote operation in emergency response

[0004] When a network security incident occurs, usually due to the on-site network paralysis or in order to prevent problematic equipment from infecting other equipment through the network, emergency response personnel usually cannot perform remote emergency response by directly accessing the network where the network security incident occurred

[0005] To sum up, the current method of transmitting keyboard and mouse signals through USB protocol or PS2 protocol cannot meet the requirements of remote operation in emergency response

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