CN102024108A - Single motherboard dual independent safety computer system - Google Patents
Single motherboard dual independent safety computer system Download PDFInfo
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Abstract
The present invention relates to the technical field of computer, specifically to a single motherboard dual independent safety computer system. The system comprises a first hardware system and a second hardware system respectively having a CPU and a power module; the two hardware systems control and share a man-machine interaction interface like a display, a keyboard and a mouse by an intelligent switching module; the intelligent switching module comprises a general control single chip circuit for receiving and processing external button signals and a sharing switching control single chip circuit; the circuit cooperates with the general control single chip circuit and the two hardware systems to form a set of whole safety computer system circuit with double systems and running independently. Two sets of independent computer hardware system and control circuits are disposed on a PCB board; the double systems can work synchronously or separately, and the systems can be used in two mutually independent network systems; the shared accessories use hardware isolation technology, the safety performance is high; the double systems can be stopped or reset independently; computer does not need to restart or shut off during the switching procedure, and the current operation is not interrupted; the use is convenient.
Description
Technical field
The present invention relates to field of computer technology, be specifically related to a kind of computer realization technology of single mainboard dual system.
Background technology
In the past, single mainboard dual system technology of computing machine was to establish two system partitionings or two system disks are installed on single hard disk, the system that when computer starting, needs artificial selection to start, and two systems can only time-sharing work.Development along with technology, two CPU have been realized on a computing machine, being provided with simultaneously, like this two systems can be installed respectively, but the system that when computer starting, still needs artificial selection to start, two systems still can only time-sharing work, two systems need restart computing machine when switching, operation inconvenience.This just loses the meaning of dual system to a certain extent, and the setting of two CPU can not fully be utilized, and causes the wasting of resources.
Summary of the invention
The problem that the present invention need solve provides a kind of trusted computer system with the two autonomous systems of physically-isolated single mainboard.
According to the above-mentioned problem that needs solution, the technical scheme that the present invention takes is: the two independent trusted computer systems of a kind of single mainboard comprise:
First hardware system has separate CPU, hard disk, CD-ROM drive, power module, cooperates display device can independently form a complete computer system;
Second hardware system has separate CPU, hard disk, CD-ROM drive, power module, cooperates display device can independently form a complete computer system;
Described first hardware system and second hardware system are shared alternating interface between man and computer such as display, mouse, keyboard by intelligent handover module control.
Concrete, described intelligent handover module comprises: described intelligent handover module comprises the overhead control single chip circuit that receives and handle the external operation button and the shared switching controls single chip circuit that is connected with demonstration, keyboard, mouse signal in two hardware systems; VGA video interface commutation circuit is connected with VGA video interface circuit in overhead control single chip circuit and two hardware systems, receives to share switching controls single-chip microcomputer signal realization demonstration switching; The PS/2 interface switching control circuit is connected with keyboard, mouse circuit in overhead control single chip circuit and two hardware systems, receives to share the switching use that switching controls single-chip microcomputer signal is realized keyboard, mouse; The USB interface commutation circuit is connected with overhead control single chip circuit and two hardware systems, receives to share the switching of switching controls single-chip microcomputer signal realization external USB interface; Reset circuit is connected with overhead control single chip circuit and two hardware systems, and current system operation resets behind the shared switching controls single-chip microcomputer signal realization of the reception button.
Described external operation button comprises system's general supply button, reset key, system's switching key.
Preferred scheme is: described first hardware system and second hardware system and intelligent handover module are arranged on the same pcb board.
Preferred, the shared battery main switch of the power module of described first hardware system and second hardware system is the general supply button, first hardware system and second hardware system independently power light is set respectively and plate carries hummer.
Compared with prior art, beneficial effect of the present invention is:
(1) trusted computer system of the present invention uses two to overlap independently computer hardware system, and two systems are independent of each other during work, works alone simultaneously, and the security performance height especially can resist two different type networks and be connected in series the infringement that is caused indirectly;
(2) two hardware systems are incorporated on the same pcb board, reduce connecting line, and complete machine structure is succinct, dependable performance;
(3) dual system operation is independent of each other, independent fully running, but independent switch machine or restart separately, and handoff procedure need not restart computer, not interrupt current operation, and is easy to use.
Description of drawings
Fig. 1 is described entire system structural representation block diagram;
Fig. 2 is a hardware system embodiment one-piece construction schematic block diagram in the described system;
Fig. 3 is overhead control single chip circuit embodiment circuit theory diagrams in the described intelligent handover module;
Fig. 4 is VGA in the described intelligent handover module, PS/2 interface switching control circuit embodiment schematic diagram;
Fig. 5 is a reset circuit embodiment schematic diagram in the described intelligent handover module;
Fig. 6 is a USB interface commutation circuit embodiment schematic diagram in the described intelligent handover module.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Trusted computer system setting of the present invention comprise have separate CPU respectively, first, second hardware system of hard disk, CD-ROM drive, power module, two hardware systems are shared alternating interface between man and computer such as display, keyboard, mouse by intelligent handover module control, and two systems cooperate display, keyboard, mouse all can independently form complete computer system.Described intelligent handover module comprises the overhead control single chip circuit that receives and handle the external operation button and the shared switching controls single chip circuit that is connected with demonstration, keyboard, mouse signal in two hardware systems.Sharing the switching controls single chip circuit cooperates overhead control single chip circuit and two hardware systems to constitute the general safety computer system circuit of cover separate double system operation.Two cover stand-alone computer hardware systems and control circuits all are incorporated on the same pcb board, and dual system can be simultaneously or time-sharing work, can be applicable in two separate network systems, and the shared portion accessory adopts the hardware isolated technology.The security performance height; But and dual system independent switch machine or reset, handoff procedure need not to restart or close computer, does not interrupt current operation, and is easy to use.
Arbitrary hardware system embodiment one-piece construction schematic block diagram in the system as described in as Fig. 2 being.During concrete enforcement, it is core that each hardware system can adopt the microprocessor of INTEL Corp., periphery cooperates the DDR3 SDRAM storer of enough capacity, and configuration VRD (VoltageRegulation-Down Voltage Regulator Module standard) realizes that the energy saving of system stable power provides.Aspect interface, adopt PCH (i/o controller) chip, this chip is connected with microprocessor, is responsible for the management of SATA (serial hardware driver interface) circuit, SPI serial port circuit, VGA video interface circuit, PCIE bus interface circuit, AUDIO CODEC (audio codec) circuit, LAN interface circuit, usb circuit etc.; Also connect SIO (super I/O chip) in addition and realize management such as PS/2 keyboard, PS/2 mouse, COM serial port by this chip.
As Fig. 1, intelligent handover module described in the present invention is connected with two hardware systems respectively, and keyboard, mouse (PS/2), display (VGA video interface) and various shared extraneous interface circuit (for example USB) are connected with intelligent handover module and two systems, can serve any one hardware system according to the control of intelligent handover module.
Described intelligent handover module comprises overhead control single chip circuit and connected VGA video interface commutation circuit, PS/2 interface switching control circuit, USB interface commutation circuit, reset circuit.The overhead control single chip circuit receives and handles external operation push button signalling (for example power button, system's switching key), control is switched keyboard, mouse, display between two systems, realize the selection and the corresponding control of first hardware system and second hardware system.
Fig. 3 to Fig. 6 is each module specific embodiment circuit theory diagrams in the system of the present invention.Each figure chips function is as follows: U10 is the overhead control single-chip microcomputer, U1 is the switching controls single-chip microcomputer, and U2, U6 are the signals reverse integrated chip, and U3, U4, U5, U7, U20 are for switching the input and output control chip, Q1～Q12 is a driving element, and LD1～LD5 is a pilot lamp.
Single chip circuit schematic diagram in the intelligent handover module as described in as Fig. 3 being.During concrete enforcement, single chip circuit adopts PIC16C57C U10 in the described intelligent handover module, and it adopts the power supply of 5V power supply.Behind the described single-chip microcomputer U10 receiving system general supply button K3 input signal, export to two systems by two I/O mouths, 15,16 pin respectively and realize two systems machine open/close simultaneously; Behind the single-chip microcomputer receiving system switching key input signal K2, then by the output of an I/O mouth 18 pin, this signal one tunnel is input to reset circuit one input end after anti-phase, another another input end of Lu Jingshuan reverser input reset circuit, the synchronous switching of reset key signal when realizing switching.Single-chip microcomputer 18 pin also are connected with pilot lamp LD7, are used to indicate the output of switching signal.
Described reset circuit embodiment schematic diagram is seen Fig. 5.This circuit comprises integrated chip U20, integrated chip U20 two input ends 2,11 pin receive reset key K3 signal, output terminal 18,9 pin corresponding respectively with two input ends connect two hardware systems by a switch triode respectively, integrated chip U20 two output control terminals 1,19 pin are connected with switching key signal in the single chip circuit, control the signal output of above-mentioned two passages respectively, realize by the reset key current hardware system that resets.Integrated chip U20 output control pin 1 pin is low, 18 pin output when 19 pin are high, and 1 pin is high, 9 pin output when 19 pin are low.When system's switching key signal input, the signal that 1,19 pin of U20 receive is always opposite, and then the U20 output terminal has only one can export, i.e. the output terminal of corresponding current system output.When pressing reset key K3, integrated chip U20 output terminal output high level, control triode Q7 or Q9 conducting, current system resets.In the reset circuit, 1,19 pin of U20 also connect the input state that pilot lamp is used to indicate the bipod signal respectively, and the malfunction elimination when being convenient to the system failure improves the convenience of using.RESET1, RESET2 are after the monolateral system in the dual system closes separately, and need start shooting once more the time, 8,9 pin of overhead control this moment single-chip microcomputer U10 are judged buttoned-up system, in 11,12 pin of U10, the system of having shut down is exported the reset signal of a correspondence then, all be in normal condition with all chip status in the system that guarantees to open again.
VGA and PS/2 interface switching control circuit embodiment schematic diagram are seen Fig. 4 in the described intelligent handover module.Described VGA video interface commutation circuit comprises switching controls chip U1, input and output control chip U4, U5, the 16 pin receiving system switching key signals of described switching controls control chip U1, handle the back and export to input and output control chip U4, U5 output control terminal respectively by 7 pin of U1, control input and output control chip U4, two groups of output terminals of U5 switch output, realize that the video capability of two hardware systems is switched.Whenever press primary system switching key K2, the 7 pin output levels of U1 reverse once, and corresponding two groups of output control terminal signals of U4 also reverse once, and two groups of output control terminal signals of U4 are always anti-phase each other, guarantee to have only one group of output terminal output.Set among the embodiment when 7 pin of U1 are exported high level, allow the output of first group of output terminal of U4,12,14,16,18 pin to be about to display and be connected to first hardware system, when the 7 pin output low levels of U1, allow the output of second group of output terminal of U4,3,5,7,9 pin to be about to display and be connected to second hardware system, the U4 output end signal is drawn by interface J8, J9 respectively and is connected to two hardware systems.
Described PS/2 interface switching control circuit comprises switching controls chip U1, integrated chip U3, the 16 pin receiving system switching key signals of described control chip U1, handle the back and export to integrated chip U3, by the switching of integrated chip U3 mouse beacon signal and two hardware systems by 7 pin of U1.Interface J5 connects keyboard among Fig. 4, J6 connects mouse; Interface J1, J2 are one group, and J3, J4 are one group and connect two hardware systems respectively.With last similar, 9,10,11 pin of integrated chip U3 are output control terminal, and it receives the signal of the 8 pin output of control chip U1, and mouse beacon is in the switching of two hardware systems; 10～15 foot control system keyboards of U1 are in the switching of two hardware systems.
Described USB interface commutation circuit comprises switching controls chip U1, integrated chip U7, phase inverter U6.The 16 pin receiving system switching key signals of described switching controls chip U1, handle integrated chip U7 is exported in the back by 7 pin one tunnel of U1 1 pin, another road is through the 5 pin input of phase inverter U6,6 pin of U6 output to 19 pin of U7, switch the switching of two groups of usb signals and two hardware systems respectively by four groups of output terminals of integrated chip U7, because two output control pin signals of integrated chip U7 are always opposite, have only one side to be in on-state so guarantee each handoff procedure, another side then is in closed condition.
In sum, system of the present invention supports following basic operation:
1, open system, by general supply key " POWER ", dual system is started shooting simultaneously, and long " POWER " key (greater than 4 seconds) dual system of pressing is closed simultaneously;
2, system is switched, and keypad " scroll lock " key is realized the dual system handoff functionality, and signals such as demonstration, keyboard, mouse, shared interface are switched to an other system; As long as this key also can change other button on the keyboard into corresponding connection with single chip circuit;
3. switching key: when monolateral system breaks down, system still can normally switch;
4. system closing: select " beginning "=" (U) shuts down computer "=" closing (U) ", this operation can only be closed current operating system, click " Scroll Lock " key on the keyboard (or etc. current system closing then automatically switch to another system) this moment, carry out as above shut-down system operation; After two edge systems are all closed, automatic powered-down;
5. automatically switch: after monolateral shutdown in the dual system, the signal of system's demonstration, keyboard, mouse, shared external USB interface is automatically switched to the not system of shutdown;
6. open the system of having shut down again: pin " Scroll Lock " key on the keyboard and keep the above time in 4 seconds, open buttoned-up system again, and switch to the system's this side that has just opened.
7. system reset: press only the reset operating system of current demonstration of the Reset button;
8. forced shutdown: press " POWER " button and keep the above time in 4 seconds, dual system hard closing simultaneously power supply.
The foregoing description only is a kind of better embodiment of the present invention, can not limit protection scope of the present invention with this, conceives under the prerequisite not breaking away from the present invention, and its any conspicuous replacement done and subtle change are all belonged to protection domain of the present invention.
Claims (10)
1. the two independent trusted computer systems of single mainboard is characterized in that, comprising:
First hardware system has separate CPU, hard disk, CD-ROM drive, power module, cooperates alternating interface between man and computer such as display, keyboard, mouse, can independently form a complete computer system;
Second hardware system has separate CPU, hard disk, CD-ROM drive, power module, cooperates alternating interface between man and computer such as display, keyboard, mouse, can independently form a complete computer system;
Described first hardware system and second hardware system are shared alternating interface between man and computer such as display, mouse, keyboard by intelligent handover module control.
2. the two independent trusted computer systems of single mainboard according to claim 1, it is characterized in that: described intelligent handover module comprises:
Receive and handle the overhead control single chip circuit of external operation button and the shared switching controls single chip circuit that is connected with demonstration, keyboard, mouse signal in two hardware systems;
VGA video interface commutation circuit is connected with VGA video interface circuit in overhead control single chip circuit and two hardware systems, receives to share switching controls single-chip microcomputer signal realization demonstration switching;
The PS/2 interface switching control circuit is connected with keyboard, mouse circuit in overhead control single chip circuit and two hardware systems, receives to share the switching use that switching controls single-chip microcomputer signal is realized keyboard, mouse;
The USB interface commutation circuit is connected with overhead control single chip circuit and two hardware systems, receives to share the switching of switching controls single-chip microcomputer signal realization external USB interface;
Reset circuit is connected with overhead control single chip circuit and two hardware systems, and current system operation resets behind the shared switching controls single-chip microcomputer signal realization of the reception button.
3. the two independent trusted computer systems of single mainboard according to claim 2, it is characterized in that: described external operation button comprises system's general supply button, reset key, system's switching key.
4. the two independent trusted computer systems of single mainboard according to claim 3, it is characterized in that: described first hardware system and second hardware system and intelligent handover module are arranged on the same pcb board.
5. the two independent trusted computer systems of single mainboard according to claim 4, it is characterized in that: the shared battery main switch of the power module of described first hardware system and second hardware system is the general supply button, first hardware system and second hardware system independently power light is set respectively and plate carries hummer.
6. according to the two independent trusted computer systems of any described single mainboard among the claim 2-5, it is characterized in that: described overhead control single-chip microcomputer U10 receiving system general supply button (K3) input signal, then export to two systems by 15,16 pin of U10 respectively and realize two systems machine open/close simultaneously; Described overhead control single-chip microcomputer U10 receiving system switching key input signal (K2), then export by 18 pin of U10, this signal one tunnel is input to reset circuit one input end after anti-phase, another another input end of Lu Jingshuan reverser input reset circuit, the synchronous switching of reset key signal when realizing switching.
7. according to the two independent trusted computer systems of any described single mainboard among the claim 2-5, it is characterized in that: described reset circuit comprises integrated chip U20, integrated chip U20 two input ends receive reset key (K3) signal, the output terminal corresponding respectively with two input ends connects two hardware systems by a switching device respectively, integrated chip U20 two output control terminals are connected with the input interface circuit that resets of two systems, control the signal output of above-mentioned two passages respectively, realize by the reset key current hardware system that resets.
8. according to the two independent trusted computer systems of any described single mainboard among the claim 2-5, it is characterized in that: described VGA video interface commutation circuit comprises switching controls chip U1, input and output control chip U4, U5, the 16 pin receiving system switching key signals of described switching controls chip U1, handle the back and export to input and output control chip U4, U5 output control terminal respectively by 7 pin of U1, control input and output control chip U4, two groups of output terminals of U5 switch output, realize that the video capability of two hardware systems is switched.
9. according to the two independent trusted computer systems of any described single mainboard among the claim 2-5, it is characterized in that: described PS/2 interface switching control circuit comprises control switching coremaking sheet U1, integrated chip U3, the 16 pin receiving system switching key signals of described switching controls chip U1, handle the back and export to integrated chip U3 by 7 pin of U1, by the switching of integrated chip U3 mouse beacon signal and two hardware systems, by the switching of 10～15 foot control system keyboards of switching controls chip U1 at two hardware systems.
10. according to the two independent trusted computer systems of any described single mainboard among the claim 2-5, it is characterized in that: described USB interface commutation circuit adopts integrated chip U7, the 16 pin receiving system switching key signals of described switching controls chip U1, export to 1 pin and 19 pin of integrated chip U7 after handling by 7 pin of U1, the switching of switching usb signal and two hardware systems by four groups of output terminals of integrated chip U7.
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| CN103793012A (en) * | 2014-03-06 | 2014-05-14 | 中晟国计科技有限公司 | Double-host integration physical isolation safety computer |
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| CN113467838A (en) * | 2020-03-30 | 2021-10-01 | 成都鼎桥通信技术有限公司 | Dual-system switching method and device |
| CN113467838B (en) * | 2020-03-30 | 2023-07-28 | 成都鼎桥通信技术有限公司 | Dual-system switching method and device |
| CN111538546A (en) * | 2020-04-27 | 2020-08-14 | 江苏欧帝电子科技有限公司 | Hybrid system intelligent blackboard and operation method |
| CN112073380A (en) * | 2020-08-13 | 2020-12-11 | 中国电子科技集团公司第三十研究所 | Secure computer architecture based on double-processor KVM switching and password isolation |
| CN112073380B (en) * | 2020-08-13 | 2022-02-08 | 中国电子科技集团公司第三十研究所 | Secure computer system based on double-processor KVM switching and password isolation |
| CN112035305A (en) * | 2020-09-03 | 2020-12-04 | 天津市中环电子计算机有限公司 | Computer switch control and hardware state monitoring circuit board and implementation method |
| CN113343316A (en) * | 2021-06-30 | 2021-09-03 | 南京神易网络科技有限公司 | Device and method for realizing isolated switching of multiple computing devices |
| CN113703909A (en) * | 2021-07-08 | 2021-11-26 | 郑州信大捷安信息技术股份有限公司 | Dual-system simultaneous operation device and method |
| CN114138708A (en) * | 2021-12-28 | 2022-03-04 | 合肥市卓怡恒通信息安全有限公司 | Main control board based on godson dual-system platform |
| CN117656104A (en) * | 2024-01-24 | 2024-03-08 | 苏州稳信智能科技有限公司 | Robot controller |
| CN117656104B (en) * | 2024-01-24 | 2024-05-17 | 苏州稳信智能科技有限公司 | Robot controller |
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