CN201141999Y - Double-locomotive active-standby switching control device - Google Patents
Double-locomotive active-standby switching control device Download PDFInfo
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- CN201141999Y CN201141999Y CNU2008200571506U CN200820057150U CN201141999Y CN 201141999 Y CN201141999 Y CN 201141999Y CN U2008200571506 U CNU2008200571506 U CN U2008200571506U CN 200820057150 U CN200820057150 U CN 200820057150U CN 201141999 Y CN201141999 Y CN 201141999Y
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- switching control
- node cluster
- machine
- hot backup
- cluster hot
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Abstract
The utility model relates to a double-hot-standby switch control device, which comprises an arbitration logic circuit and a switching channel, wherein the arbitration logic circuit comprises a monostable trigger, a D trigger and a logic gate and is connected with the switching channel. Compared with prior art, the double-hot-standby switch control device has the advantages that the device can maintain the communication between a main and a standby machines, and can arbitrate and control the hot backup of a communication channel between the main and the standby machines and external equipment to ensure that only the main machine can transmit data or command to peripherals.
Description
Technical field
The utility model relates to a kind of switching control, particularly a kind of two-node cluster hot backup switching control.
Background technology
Consideration based on aspects such as security, reliability and maintainabilities, a lot of railways, subway signal system product all adopt the design proposal of two-node cluster hot backup, the design proposal of TDCS station extension set two-node cluster hot backup for example, this system is made up of two cover independent power supplies (PWRA and PWRB), two cover network processing controllers (NPCA and NPCB), two cover switch acquisition plates (DIBA and DIBB, how much being made up of the polylith collection plate according to collection capacity generally speaking) and a cover two-node cluster hot backup switching control (STBY).This has just related to the control problem of two-node cluster hot backup switching control, how can optimizedly reach the control requirement, is our research purpose.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of high-efficiency reliable two-node cluster hot backup switching control for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions: a kind of two-node cluster hot backup switching control, it is characterized in that, this device comprises arbitraling logic circuit, switching channel, be provided with monostable trigger, d type flip flop, logic gate in the described arbitraling logic circuit, described arbitraling logic circuit is connected with switching channel.
This device also comprises external apparatus interface.
This device also comprises cabinet, and this cabinet is provided with preceding control panel.
Control panel is provided with a three-position switch, five LED light before described.
Compare with original technology, the utlity model has the communication that keeps between active and standby machine; Ruling is also controlled active and standby machine and is equipped with the heat of communication port between external unit, guarantees to have only main frame can send the advantage of data or order to peripheral hardware.
Description of drawings
Fig. 1 is the structural representation of a kind of two-node cluster hot backup switching control of the utility model;
Fig. 2 is the application synoptic diagram of a kind of two-node cluster hot backup switching control of the utility model;
Fig. 3 is the synoptic diagram of the preceding control panel of a kind of two-node cluster hot backup switching control of the utility model.
Embodiment
Embodiment 1
As shown in Figure 1, the two-node cluster hot backup switching control is combined by arbitraling logic circuit and switching channel, realizes that by corresponding outside wiring and combination of software passage heat is equipped with handoff functionality.Can carry out manually and automatically switching to 56 tunnel passage nearly by STBY.
As shown in Figure 2, the design proposal of a kind of station extension set two-node cluster hot backup, this system is made up of two cover independent power supplies (PWRA and PWRB), two cover network processing controllers (NPCA and NPCB), two cover switch acquisition plates (DIBA and DIBB, how much being made up of the polylith collection plate according to collection capacity generally speaking) and a cover two-node cluster hot backup switching control (STBY).
A red light, four green lights and a three-position switch are arranged on the preceding control panel of two-node cluster hot backup switching control, and pilot lamp is defined as:
(1) POWER: red light, represent when lighting that the two-node cluster hot backup switching control powers on;
(2) A: green light, represent when lighting that ruling A machine is a main frame;
(3) B: green light, represent when lighting that ruling B machine is a main frame.After the two-node cluster hot backup switching control powered on, A and B always had one and only have a lamp bright; (4) COMA: green light, represent during flicker that the A machine just is equipped with mouth to B machine photos and sending messages by the heat of two-node cluster hot backup switching control;
(5) COMB: green light, represent during flicker that the B machine just is equipped with mouth to A machine photos and sending messages by the heat of two-node cluster hot backup switching control;
Each position of three-position switch is expressed as follows:
The A position: forcing the A machine is main frame, is not subjected to any extraneous factor to influence (being equipped with a mouthful data exception, outage etc. as heat);
The AUTO position: automatically switch, if be in initial open state this moment or turn to the AUTO position by hand from the A position, maintenance A is a main frame, is main frame but can switch to B under A, the hot mouthful acting in conjunction fully of B machine; If be in the manual AUTO position that turns to from the B position this moment, continuing maintenance B is main frame, produces an active and standby machine switching under mouthful acting in conjunction but can be equipped with in A, B machine heat, promptly switches to the A main frame from the B main frame;
The B position: pressure B is a main frame, the factor affecting such as being equipped with mouthful data variation of not being heated;
If two-node cluster hot backup switching control power cut-off, the A machine still keeps being communicated with external unit, and the B machine can't communicate with peripheral hardware this moment;
It is the RS232 serial ports of a standard that heat is equipped with mouth, uses wherein 5 signal pin: RTS, CTS, TX, RX and GND.
Active and standby machine arbitration result determines jointly that by the position that heat is equipped with RTS, TX data and three-position switch on the mouth arbitrated logic is the result read from CTS, and internal circuit is directly controlled the switching that heat is equipped with passage by CTS.The CTS state that A, B machine examination measure is reciprocal, thinks it oneself is main frame when detecting CTS=1.
A, B machine carry out two machine communication by TX and RX.TX between A, the B, RX directly intersect to be communicated with.
When two-node cluster hot backup switching control arbitration expression A machine was main frame, A machine interface was communicated with external apparatus interface under the effect of passage switch-over control signal; When two-node cluster hot backup switching control arbitration expression B machine was main frame, B machine interface was communicated with external apparatus interface under the effect of passage switch-over control signal.
When actual motion, if being thought of as, the A machine is main frame, then the A machine is put the RTS that heat is equipped with mouthful A and is " 1 ", and sends arbitrary data by the TX that heat is equipped with mouthful A, COMA lamp flicker at this moment, the A machine is seized and is main frame.If owing to some plants reason (as fault time), the hot mouth fully of A machine stops to send data or puts RTS is " 0 ", and this moment, the B machine sent data (flicker of COMB lamp), and the RTS of B machine is changed to " 1 ", the B machine will be seized and be main frame, is implemented in the active and standby automatic switchover under the hostdown condition.
Application software on A, the B machine is equipped with mouth from heat and reads CTS=1 as judging that this machine can be used as unique foundation of main frame operation.Software is by being provided with RTS=1 and sending data notification two-node cluster hot backup switching control " I want to become main frame " by TX.The two-node cluster hot backup switching control sends CTS=1 for a machine according to its internal circuit logic, and sends CTS=0 for an other machine.
Claims (4)
1. a two-node cluster hot backup switching control is characterized in that, this device comprises arbitraling logic circuit, switching channel, is provided with monostable trigger, d type flip flop, logic gate in the described arbitraling logic circuit, and described arbitraling logic circuit is connected with switching channel.
2. a kind of two-node cluster hot backup switching control according to claim 1 is characterized in that this device also comprises external apparatus interface.
3. a kind of two-node cluster hot backup switching control according to claim 1 is characterized in that this device also comprises cabinet, and this cabinet is provided with preceding control panel.
4. a kind of two-node cluster hot backup switching control according to claim 3 is characterized in that, described preceding control panel is provided with a three-position switch, five LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200571506U CN201141999Y (en) | 2008-04-10 | 2008-04-10 | Double-locomotive active-standby switching control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200571506U CN201141999Y (en) | 2008-04-10 | 2008-04-10 | Double-locomotive active-standby switching control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141999Y true CN201141999Y (en) | 2008-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200571506U Expired - Fee Related CN201141999Y (en) | 2008-04-10 | 2008-04-10 | Double-locomotive active-standby switching control device |
Country Status (1)
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| CN (1) | CN201141999Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991538A (en) * | 2012-12-26 | 2013-03-27 | 北京科信华技术有限公司 | Device and method for automatically switching point-to-point communication |
| CN103246220A (en) * | 2013-05-17 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | Signal control conversion device for laser autocollimators |
| CN107272401A (en) * | 2017-07-04 | 2017-10-20 | 中车青岛四方车辆研究所有限公司 | Passenger information system master control system and control method |
| CN107807630A (en) * | 2017-11-29 | 2018-03-16 | 瑞斯康达科技发展股份有限公司 | A kind of method for handover control of master/slave device, its handover control system and device |
| CN109100932A (en) * | 2017-06-20 | 2018-12-28 | 卡斯柯信号有限公司 | A kind of self-regulating machine redundancy switching system and method |
| CN112486062A (en) * | 2020-11-23 | 2021-03-12 | 西安航天动力试验技术研究所 | Rocket engine test dual-machine real-time control system and switching method |
-
2008
- 2008-04-10 CN CNU2008200571506U patent/CN201141999Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991538A (en) * | 2012-12-26 | 2013-03-27 | 北京科信华技术有限公司 | Device and method for automatically switching point-to-point communication |
| CN102991538B (en) * | 2012-12-26 | 2016-05-25 | 北京科信华技术有限公司 | The automatic switching control equipment of one waypoint point to-point communication and method |
| CN103246220A (en) * | 2013-05-17 | 2013-08-14 | 中国科学院长春光学精密机械与物理研究所 | Signal control conversion device for laser autocollimators |
| CN109100932A (en) * | 2017-06-20 | 2018-12-28 | 卡斯柯信号有限公司 | A kind of self-regulating machine redundancy switching system and method |
| CN107272401A (en) * | 2017-07-04 | 2017-10-20 | 中车青岛四方车辆研究所有限公司 | Passenger information system master control system and control method |
| CN107807630A (en) * | 2017-11-29 | 2018-03-16 | 瑞斯康达科技发展股份有限公司 | A kind of method for handover control of master/slave device, its handover control system and device |
| CN112486062A (en) * | 2020-11-23 | 2021-03-12 | 西安航天动力试验技术研究所 | Rocket engine test dual-machine real-time control system and switching method |
| CN112486062B (en) * | 2020-11-23 | 2021-10-15 | 西安航天动力试验技术研究所 | Rocket engine test dual-machine real-time control system and switching method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Fuzhong Inventor after: Xu Bi Inventor after: Chen Brahma Inventor after: Chen Xuan Inventor before: He Fuzhong |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HE FUZHONG TO: HE FUZHONG; XU BEN; CHEN FAN; CHEN XUAN |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20130410 |