RU2733336C1 - Double-circuit monoblock - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: invention relates to computer engineering, particularly to personal computer systems, and can be used as double-circuit monoblock, having two physically separated computing modules. Technical result is achieved by a double-circuit monoblock comprising a first and a second computing module, as well as a switching device and an information display unit in the form of a monitor, wherein switching device is made in form of keyboard, video and mouse switching module, comprising microcontroller equipped with memory, first switching unit, a first signal input configured to be connected to the keyboard, first and second signal outputs, a second switching unit, as well as a digital video and audio stream switching unit.

EFFECT: technical result consists in improvement of security of information streams used in two computing modules of one monoblock.

1 cl, 2 dwg

Description

The invention relates to computing, in particular, to personal computer systems and can be used as a two-circuit monoblock having two physically separated computing modules. Each computer module has its own data carrier and each of them has an independent power supply. They can be used to process information with varying degrees of confidentiality.

A known system for directing pixel data from a scalable video stream packet in a client in a communication system with a digital interface for mobile displays [RU 2337497, C2, H04L 29/06, 27.10.2008], comprising means for receiving by the client from the host the content of predetermined pixels means for scaling, by the client, said content of predetermined pixels to a specific size, means for sending the scaled pixel content to at least one particular display buffer of a plurality of display buffers specified by a pixel data attribute field received by the client, and means for displaying the content pixels from said at least one specific display buffer.

The disadvantage of this technical solution is the relatively narrow functionality.

In addition, a technical system is known, on the basis of which the optimization of the control system is carried out with parallel connection of control computers with the procedure for intelligent selection of the control device [RU 2622661, C2, G05B 15/00, 19.06.2017], contains two parallel control computers with significantly different technical characteristics, a data transmission channel between each individual control computer and the subsystems related to them, a block of subsystems consisting of a set of subsystems, each of which is capable of having an independent technological process, while the technical system is controlled and the basic operation algorithm is loaded into each control computer with the help of commands from the operator's external computer, and the data exchange channel between the personal computer and control computers connected in parallel is carried out through a network hub

The disadvantage of this technical solution is also the relatively narrow functionality.

The closest in technical essence to the proposed device is [RU 139001, U1, G06F 15/163, G06F 21/74, 03/27/2014], which contains a housing that houses two computing modules and a device for switching between computing modules of input devices information output, as well as an information output device in the form of a monitor, moreover, each of the computing modules is made independent with the ability to work simultaneously and independently of the other and with the ability to connect to the Internet or a corporate network and contains an additional module that allows one-way transmission information from one computing module to another.

A feature of this device is that the monitor can be made touch-sensitive and in this case additionally perform the functions of an information input device, as input-output devices switched by the device to switch between computing modules of information input-output devices, and / or a monitor is used, and / or mouse, and / or keyboard, and / or touchpad, and / or joystick, and / or printer, and / or scanner, and / or projector, and / or audio speakers, and / or headphones, and / or microphone , a device for switching between computing modules of information input-output devices is made with the possibility of their simultaneous or separate switching, and the device has at least one output for connecting an additional monitor.

The disadvantage of the closest technical solution is the relatively low security of the transfer of information flows between different computational modules, including USB information flows, and the relatively low efficiency.

The problem to be solved in the invention is to create a monoblock with two physically separated computing modules used in information processing (including USB data streams) with varying degrees of confidentiality and isolation between them.

The required technical result is to increase the security of information flows used in two computing modules of one monoblock.

The problem is solved, and the required technical result is achieved by the fact that, in a double-circuit monoblock containing the first and second computing modules, as well as a switching device and an information output unit in the form of a monitor, according to the utility model, the switching device is made in the form of a keyboard switching module, video and a mouse containing a microcontroller equipped with a non-volatile memory, the first switching unit, the control input of which is connected to the corresponding output of the microcontroller, the first signal input is adapted to be connected to the keyboard, and the first and second signal outputs are made to be connected to the corresponding inputs of the first and second computing modules, the second switching unit, the control input of which is connected to the corresponding output of the microcontroller, the first signal input is configured to connect to a mouse via the USB input, and the first and second signal outputs are configured to be connected to the corresponding the corresponding inputs of the first and second computational modules, as well as a block for switching digital video and audio streams, the control input of which is connected to the corresponding output of the microcontroller, the signal output is adapted to be connected to the monitor input, and the first and second inputs are made to be connected to the corresponding outputs of the first and second computational modules.

The drawing shows:

in fig. 1 - functional diagram of a double-circuit monoblock;

in fig. 2 - switching device in the form of a keyboard, video and mouse switching module.

The double-circuit monoblock (Fig. 1) contains the first 1 and second 2 computing modules, as well as a switching device 3 and an information output unit in the form of a monitor 4.

In a double-circuit monoblock, the switching device 3 in (Fig. 2) is made in the form of a keyboard, video and mouse switching module containing a microcontroller 5 equipped with a non-volatile memory 6, the first switching unit 7-1, the control input of which is connected to the corresponding output of the microcontroller 5, the first the signal input is adapted to be connected to the keyboard 8, and the first and second signal outputs are made to be connected to the corresponding inputs of the first 1 and second 2 computing modules.

In addition, the switching device 3 contains a second switching unit 7-2, the control input of which is connected to the corresponding output of the microcontroller 5, the first signal input is configured to connect to the mouse 9 via the USB input, and the first and second signal outputs are configured to be connected to the corresponding the inputs of the first 1 and second 2 computing modules.

The switching device 3 also contains a block 10 for switching digital video and audio streams, the control input of which is connected to the corresponding output of the microcontroller 5, the signal output is configured to be connected to the input of the monitor 4, and the first and second inputs are configured to be connected to the corresponding outputs of the first 1 and second 2 computational modules.

Monitor 4 can be made with a video signal format converter.

The double-circuit monoblock works as follows.

An automated workstation in the monoblock form factor (hereinafter referred to as the “Monoblock”) is designed to work both as an autonomous workstation not connected to communication networks (including the international Internet exchange network) and as part of automated systems connected to communication networks.

The monoblock has two physically separated computing modules - the first 1 and the second 2 computing modules (Fig. 1) Each computing module can be connected to its own data carrier.

They can be used for processing with varying degrees of confidentiality.

The computational modules themselves can have a different functional diagram.

For example, as the first computational module 1, a standard ATX motherboard of various form factors (sizes) can be used. A data carrier is connected to the motherboard (the data carrier is powered by a 250w power supply), a controller for trusted switching of the monitor, keyboard and mouse, and a separate on / off button.

The first computing module 1 can be powered from its own power supply unit with a power of 250w or more

The second computational module 2 can be made, for example, in the form of a computer based on the x86 architecture, or based on the ARM architecture. A storage medium can be connected to it (the storage medium is powered by a 150w power supply).

Switching device 3 in the form of a keyboard, video and mouse switching module (Fig. 2) switches peripheral devices (monitor, keyboard, mouse) between the first 1 and second 2 computing modules.

After switching one of the computational modules becomes active, and the second passive. The active computing module transmits an image to monitor 4 via HDMI and receives signals from keyboard 8 and mouse 9.

In this case, the data from the passive computing module is not processed. Isolation of data channels switched between computing modules is achieved by preventing data transmission via HDMI and USB interfaces between computing modules due to the hardware implementation of the switching device 3 (the lack of physical possibility of such transfer), blocking by the program code of the device 3 switching data transmission when connecting storage devices to USB - ports of the switching device 3, intended for the keyboard and mouse, lack of buffering and data recording to internal data carriers from the computing modules to the switching device 3.

Operates device 3 switching keyboard, video and mouse as follows.

The device is a software and hardware tool that functions as part of an automated workstation (AWP) and performs:

- switching peripheral devices (monitor, keyboard, mouse) between two computing modules that can process information of varying degrees of confidentiality;

- isolation of the data channel between computing modules.

The device is made in the form of a single functional module, located mainly on one board installed in a monoblock, and starts its work before the operating system boots when power is supplied to the USB port to which it is connected.

Microcontroller 5 implement general control of the device operation. Microcontroller 5 is loaded with firmware that implements data channel switching.

The first 7-1 and second 7-2 switching units implement the transition of USB streams between different computing modules. They do not have any interfaces for copying information and its unauthorized transfer outside the controlled area. They, like the switching unit 10, are controlled by the microcontroller 5, which sends a signal in digital form in the size of one bit (sent either 0 or 1) to switch (control the switching units). Switching to the first computing module 1 is performed by setting a logical unit to the control output, and switching to the second computing module 2 is performed by setting a logical zero.

Switching unit 10 performs switching of video and audio streams in digital form between different computing modules.

Its design provides digital switching of video and audio streams between two independent channels. The microcircuit-switch does not have any interfaces for copying information and its unauthorized transfer outside the controlled area. From the microcontroller 5 to its control input, a signal is sent in digital form in the size of one bit (either 0 or 1 is sent) for switching, the switching unit 10 does not recognize other information. Switching to the first computing module 1 is performed by setting a logical unit to the control output, and switching to the second computing module 2 is performed by setting a logical zero.

Non-volatile memory 6, which stores switching combinations, is divided into cells with its own address. Memory 6 is connected directly to microcontroller 5 and controlled by it. Writing to memory 6 can be done only with the use of microcontroller 5 and the software programmed into it.

Thus, the proposed technical solution achieves the claimed technical result of the invention, which consists in increasing the security of information flows used in two computing modules of one monoblock.

Claims (1)

A two-circuit monoblock containing the first and second computing modules, as well as a switching device and an information output unit in the form of a monitor, characterized in that the switching device is made in the form of a keyboard, video and mouse switching module containing a microcontroller equipped with memory, a first switching unit that controls the input of which is connected to the corresponding output of the microcontroller, the first signal input is adapted to be connected to the keyboard, and the first and second signal outputs are made to be connected to the corresponding inputs of the first and second computing modules, the second switching unit, the control input of which is connected to the corresponding output of the microcontroller, the first signal input is adapted to be connected to a mouse via a USB input, and the first and second signal outputs are made to be connected to the corresponding inputs of the first and second computing modules, as well as a digital video and audio switching unit flows, the control input of which is connected to the corresponding output of the microcontroller, the signal output is configured to be connected to the monitor input, and the first and second inputs are made to be connected to the corresponding outputs of the first and second computing modules.

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