Remote managing method and remote managing device using the method

Abstract

The invention provides a remote managing device. A network interface of the remote managing device is coupled to a central control computer, and a serial interface of the remote managing device is coupled to a device to be controlled, so that the central control computer can control the device to be controlled by the remote managing device. The remote managing device includes a first entity layer which receives a first instruction from the central control computer or transmits a second instruction to the central control computer according to a first communication protocol; a second entity layer which transmits a third instruction to the device to be controlled or receives a fourth instruction from the device to be controlled according to a second communication protocol; an application layer which makes the first instruction to be converted into the third instruction by the second entity layer or makes the fourth instruction to be converted into the second instruction by the first entity layer, and analyzes and determines whether the fourth instruction matches with an instruction to be filtered, and, if so, intercepts a linefeed instruction transmitted by the central control computer, such that the device to be controlled cannot execute the instruction to be filtered.

Description

technical field [0001] The present invention relates to a remote management method and a remote management device using the method; specifically, the present invention relates to a remote management method capable of filtering instructions and a remote management device applying the method. Background technique [0002] In general, the concept or architecture of a network can be figure 1 Various models shown, such as OSI model, DoD model or TCP / IP protocol combination. Taking the DoD model as an example, it is a four-layer structure, including an "application layer", a "transport layer", a "network layer" and a "connection layer". Although the functions defined by the OSI model, the DoD model, or the TCP / IP protocol combination are not the same in terms of the division of functions defined by individual classes, the corresponding relationship between them can still be seen. For example, the "application layer" of the DoD model corresponds to the "conference layer", "presen...

AI Technical Summary

Problems solved by technology

Unlike personal computers (PCs) or servers (Servers), most network equipment or industrial control equipment do not have the ability to output images, so that the administrator in front of the central control computer can only use plain text user interface and the serial interface to interact with the

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