CN204576483U - A kind of redundancy and the multiplexing aobvious control computer system of nonredundancy state - Google Patents
A kind of redundancy and the multiplexing aobvious control computer system of nonredundancy state Download PDFInfo
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- CN204576483U CN204576483U CN201520227470.1U CN201520227470U CN204576483U CN 204576483 U CN204576483 U CN 204576483U CN 201520227470 U CN201520227470 U CN 201520227470U CN 204576483 U CN204576483 U CN 204576483U
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Abstract
The utility model discloses a kind of redundancy and the multiplexing aobvious control computer system of nonredundancy state, comprise the first display, second display, the 3rd display, the 4th display, signal switching box, aobvious control computer host A, aobvious control computer host B; Signal switching box realizes the switching of aobvious control computer host A and aobvious control computer host B external interface.When main frame normally works, keep slave data synchronous with host data, when main frame breaks down, outside change-over switch closes by external system after judging, signal switching box external interface is switched to slave by handover module.The utility model is by signal switching, and make the compatible redundancy of aobvious control computer and nonredundancy state, reduce unit failure risk, the requirement of compatible miniaturization, ensure that reliability, provides cost savings.
Description
Technical field
The utility model relates to a kind of redundancy and the multiplexing aobvious control computer system of nonredundancy state, and the utility model belongs to carrier rocket, strategy, tactical weapon launch vehicle measurement.
Background technology
Current New Launch, weapon launch vehicle measurement generally adopt intelligent computer as Man Machine Interface, send out the execution of flow control journey, survey launching control equipment and communicate, process, store test result as host computer and other, display etc. for controlling to survey.Therefore this intelligent computer (being referred to as below " aobvious control computer ") plays vital effect in launch vehicle measurement, if there is the situations such as deadlock, directly impact can survey the carrying out sending out flow control journey.For improving its reliability, usual launch vehicle measurement takes unit redundant measure.
As shown in Figure 1, in traditional design, the redundancy scheme of aobvious control computer takes completely independently two units to coexist in the mode of system usually, and for system, aobvious control computer external interface is two hardware interfaces, two software interfaces.Be adaptation redundant state, add the electric interfaces of system, software interface, make software and hardware information interaction passage become loaded down with trivial details, reduce the risk of unit fault, but add the risk of Interface design.In some cases, such as car launcher entrucking state, to number of devices, take up room requires harshness to launch vehicle measurement, and traditional redundancy scheme conflicts with system compact.
Utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of redundancy and the multiplexing aobvious control computer system of nonredundancy state are provided, the utility model passes through signal switching, make the compatible redundancy of aobvious control computer and nonredundancy state, improve effect, ensure that reliability, provide cost savings.
Technical solution of the present utility model is:
Redundancy and the multiplexing aobvious control computer system of nonredundancy state comprise: the first display, second display, the 3rd display, the 4th display, signal switching box, aobvious control computer host A, aobvious control computer host B; Signal switching box comprises again relay K 1, relay K 2, several chips TMDS361 and outside switching single-pole single-throw switch (SPST);
Show and connected by Ethernet between control computer host A and aobvious control computer host B, ensure the data syn-chronization of aobvious control computer host A and aobvious control computer host B.
Aobvious control computer host A, aobvious control computer host B provide+12V DC voltage to power to signal switching box respectively.Wherein, the power supply that+12VA provides for aobvious control computer host A, the power supply that+12VB provides for aobvious control computer host B.
Line bag KG1 one end of relay K 1 connects outside one end switching single-pole single-throw switch (SPST); The other end ground connection of line bag KG1; The outside other end connection+12VB switching single-pole single-throw switch (SPST).Close when outside switches single-pole single-throw switch (SPST), KG1 is charged for line bag, and contact K1_1, K1_2 are closed;
One end of contact K1_1 is connected with the feeder ear+12VD of chip TMDS361, and when the contact K1_1 of relay K 1 disconnects, the other end of contact K1_1 is connected with+12VA; When the contact K1_1 of relay K 1 closes, the other end of contact K1_1 is connected with+12VB.
Line bag KG2 one end ground connection of relay K 2; The other end of line bag KG2 connects one end of the contact K1_2 of relay K 1, other end ground connection when contact K1_2 disconnects (default conditions) of contact K1_2; Other end connection+12VB when contact K1_2 closes of contact K1_2.
The mode selection input of chip TMDS361 connects one end of the contact K2_2 of relay K 2, and the other end ground connection of contact K2_2 when contact K2_2 disconnects, when contact K2_2 closes, the other end of contact K2_2 is connected with+12VB.
Four road DVI signal output parts of aobvious control computer host A are connected with the first input end of four chip TMDS361 respectively; Four road DVI signal output parts of aobvious control computer host B are connected with second input end of four chip TMDS361 respectively; The output terminal of four chip TMDS361 connects the first display, second display, the 3rd display, the 4th display respectively.
When the contact K2_1 of relay K 2 disconnects, one end of the contact K2_1 of relay K 2 is connected with the Ethernet output terminal of aobvious control computer host A; When the contact K2_1 of relay K 2 closes, one end of contact K2_1 is connected with the Ethernet output terminal of aobvious control computer host B; The other end of contact K2_1 connects extraneous network;
The utility model beneficial effect is compared with prior art:
(1) the utility model is by signal switching technology, make the compatible redundancy of aobvious control computer and nonredundancy two states, the aobvious control computer of two redundancies runs identical software, only there are other units in an aobvious control computer and system to carry out information interaction at synchronization, software external information exchange channels will be made to become loaded down with trivial details due to redundancy scheme.In addition, this redundant fashion can compatible unit state, is applicable to the demand of launch vehicle measurement miniaturization.
(2) the utility model does not change carrier rocket body design, and hardware circuit increase is also uncomplicated, designs by force realisation, and the utility model is simply easy to realize, and highly versatile, has higher engineering use value.
Accompanying drawing explanation
Fig. 1 is prior art structural representation;
Fig. 2 is the utility model structural representation;
Fig. 3 is the utility model signal switching box circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described in detail.
As shown in Figure 2, a kind of redundancy and the multiplexing aobvious control computer system of nonredundancy state comprise: the first display, second display, the 3rd display, the 4th display, signal switching box, aobvious control computer host A, aobvious control computer host B; Signal switching box comprises again relay K 1, relay K 2, several chips TMDS361 and outside switching single-pole single-throw switch (SPST).
Aobvious control computer host A and aobvious control computer host B all comprise 1 piece of ruggedized computer primary module, 1 blocks of data loading module (containing electric board), 1 piece of interface module, 2 pieces of video card modules, 1 block power supply modules.
Wherein, power module can receive the DC voltage input of outside+28V, is converted into the DC voltage such as+3.3V ,+5V ,+12V and supplies the use of whole computing machine, and is used by+12V direct voltage output supply signal switching box.Power module is made up of input filter, transient suppress, power conversion three part.
Video card module can realize the function of two-way DVI high-performance display.By mainboard module to the control of two display modules with communicate, realize the function of multihead display.
The key that multiplexing redundancy and nonredundant multi-screen show control computer scheme increases a signal switching box overlapping between aobvious control computer system two, shows and network signal for switching DVI.
Aobvious control computer host A, aobvious control computer host B provide+12V DC voltage to power to signal switching box respectively.Wherein, the power supply that+12VA provides for aobvious control computer host A, the power supply that+12VB provides for aobvious control computer host B.
Line bag KG1 one end of relay K 1 connects outside one end switching single-pole single-throw switch (SPST); The other end ground connection of line bag KG1; The outside other end connection+12VB switching single-pole single-throw switch (SPST).Close when outside switches single-pole single-throw switch (SPST), KG1 is charged for line bag, and contact K1_1, K1_2 are closed.
Line bag KG2 one end ground connection of relay K 2; The other end of line bag KG2 connects one end of the contact K1_2 of relay K 1, other end ground connection when contact K1_2 disconnects (default conditions) of contact K1_2; Other end connection+12VB when contact K1_2 closes of contact K1_2.
One end of contact K1_1 is connected with the feeder ear+12VD of chip TMDS361, and when the contact K1_1 of relay K 1 disconnects, the other end of contact K1_1 is connected with+12VA; When the contact K1_1 of relay K 1 closes, the other end of contact K1_1 is connected with+12VB.Namely, when the contact K1_1 of relay K 1 closes, chip TMDS361 is powered by+12VB; When the contact K1_1 of relay K 1 disconnects, chip TMDS361 is powered by+12VA.
The mode selection input SEL of chip TMDS361 connects one end of the contact K2_2 of relay K 2, and the other end ground connection of contact K2_2 when contact K2_2 disconnects, when contact K2_2 closes, the other end of contact K2_2 is connected with+12VB.Namely when contact K2_2 disconnects, the mode selection input of chip TMDS361 connects low level, and when contact K2_2 connects, the mode selection input of chip TMDS361 connects high level.The output terminal of four chip TMDS361 connects the first display, second display, the 3rd display, the 4th display respectively.
When the contact K2_1 of relay K 2 disconnects, one end of the contact K2_1 of relay K 2 is connected with the Ethernet output terminal of aobvious control computer host A; When the contact K2_1 of relay K 2 closes, one end of contact K2_1 is connected with the Ethernet output terminal of aobvious control computer host B; The other end of contact K2_1 connects extraneous network;
Specific works principle of the present utility model is as follows:
Signal switching box mainly realizes the switching of aobvious control computer host A and aobvious control computer host B external interface, when main frame normally works, keep slave data synchronous with host data, when main frame breaks down, outside change-over switch closes by external system after judging, signal switching box external interface is switched to slave by handover module.When panel change-over switch disconnects (default conditions), select main frame external interface; When panel change-over switch closes, select slave external interface.Signal switching box is primarily of control circuit, network commutation circuit, DVI commutation circuit composition.DVI commutation circuit adopts four special DVI to switch chip TMDS361, realizes the switching of 4 road DVI signals.As shown in Figure 3.
Signal switching box is directly powered by+the 12V showing the output of control computer power module.When outside switches single-pole single-throw switch (SPST) disconnection (default conditions), KG1 is not charged for relay line bag, then the power supply of aobvious control computer main frame i.e.+12VA powers to commutation circuit by relay contact K1_1.Relay contact K1_2 opens, then line bag KG2 is not charged, and contact K2_1, K2_2 of K2 open, then export the mainframe network input for acquiescence to outer network.The gating signal SEL that DVI switches chip is low level, is externally exported by main frame DVI signal.
Close when outside switches single-pole single-throw switch (SPST), K1 is charged for relay line bag, and relay contact K1_1 closes, and is powered by the power supply of aobvious control computer slave i.e.+12VB to commutation circuit.Meanwhile, relay contact K1_2 closes, then relay line bag KG2 is charged, then relay contact K2_1, K2_2 closes, and K2_1 is closed externally to be exported the input of slave network.K2_2 closes, and the gating signal SEL that DVI switches chip is high level, is exported by slave DVI signal.
The content be not described in detail in the utility model instructions belongs to the known technology of those skilled in the art.
Claims (1)
1. redundancy and the multiplexing aobvious control computer system of nonredundancy state, is characterized in that comprising: the first display, second display, the 3rd display, the 4th display, signal switching box, aobvious control computer host A, aobvious control computer host B; Signal switching box comprises again relay K 1, relay K 2, several chips TMDS361 and outside switching single-pole single-throw switch (SPST);
Show and connected by Ethernet between control computer host A and aobvious control computer host B, for ensureing the data syn-chronization of aobvious control computer host A and aobvious control computer host B;
Line bag KG1 one end of relay K 1 connects outside one end switching single-pole single-throw switch (SPST); The other end ground connection of line bag KG1; The outside other end connection+12VB switching single-pole single-throw switch (SPST); Close when outside switches single-pole single-throw switch (SPST), KG1 is charged for line bag, and contact K1_1, K1_2 are closed;
One end of contact K1_1 is connected with the feeder ear+12VD of chip TMDS361, and when the contact K1_1 of relay K 1 disconnects, the other end of contact K1_1 is connected with+12VA; When the contact K1_1 of relay K 1 closes, the other end of contact K1_1 is connected with+12VB;
Line bag KG2 one end ground connection of relay K 2; The other end of line bag KG2 connects one end of the contact K1_2 of relay K 1, other end ground connection when contact K1_2 disconnects of contact K1_2; Other end connection+12VB when contact K1_2 closes of contact K1_2;
The mode selection input of chip TMDS361 connects one end of the contact K2_2 of relay K 2, the other end ground connection of contact K2_2 when contact K2_2 disconnects, and when contact K2_2 closes, the other end of contact K2_2 is connected with+12VB;
Four road DVI signal output parts of aobvious control computer host A are connected with the first input end of four chip TMDS361 respectively; Four road DVI signal output parts of aobvious control computer host B are connected with second input end of four chip TMDS361 respectively; The output terminal of four chip TMDS361 connects the first display, second display, the 3rd display, the 4th display respectively;
When the contact K2_1 of relay K 2 disconnects, one end of the contact K2_1 of relay K 2 is connected with the Ethernet output terminal of aobvious control computer host A; When the contact K2_1 of relay K 2 closes, one end of contact K2_1 is connected with the Ethernet output terminal of aobvious control computer host B; The other end of contact K2_1 connects extraneous network.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024016967A1 (en) * | 2022-07-22 | 2024-01-25 | 深圳中广核工程设计有限公司 | Multiplexing method and system for nuclear power plant control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2024016967A1 (en) * | 2022-07-22 | 2024-01-25 | 深圳中广核工程设计有限公司 | Multiplexing method and system for nuclear power plant control system |
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