CN202141905U - Control system redundancy switching device based on high speed serial communication - Google Patents
Control system redundancy switching device based on high speed serial communication Download PDFInfo
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- CN202141905U CN202141905U CN201120222122U CN201120222122U CN202141905U CN 202141905 U CN202141905 U CN 202141905U CN 201120222122 U CN201120222122 U CN 201120222122U CN 201120222122 U CN201120222122 U CN 201120222122U CN 202141905 U CN202141905 U CN 202141905U
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Abstract
The utility model relates to a control system redundancy switching device based on high speed serial communication, being characterized in that: the control system redundancy switching device takes two master control cases A and B and a switching case as subject and takes optical fiber as transmission medium; and when the A master control case or the B master control case malfunctions, the A and B master control cases are used as the redundancy for each other and perform redundancy switching through the switching case. The control system redundancy switching device based on high speed serial communication provided by the utility model has the advantages that: when a master control case malfunctions, the system is switched to the other master control case and can continue to operate stably under the control of the master control case in working condition, and can perform power down independently to maintain one of the master control cases, thus significantly improving reliability and stability of the control system.
Description
Technical field
The utility model relates to the redundant switching device shifter of a kind of control system based on high speed serial communication.
Background technology
Continuous development along with Power Electronic Technique; The equipment of power drive and quality of power supply aspect constantly develops with the high capacity aspect to high-power; The performance of the control system of these equipment also requires increasingly high, and the redundancy of control system is switched and Hot Spare has demand and bright development prospect widely.General redundancy control system is a master control integrated circuit board of in a cabinet, plugging two identical functions at present, and this redundant switching has the power down of being not easy to and safeguards, is easy to the shortcoming that two master control integrated circuit boards break down simultaneously.
Summary of the invention
The purpose of the utility model provides the redundant switching device shifter of a kind of control system based on high speed serial communication; Utilize high speed serial communication that A, B master control cabinet are connected to the switching cabinet; The redundancy that realizes A, B master control cabinet is switched; Make that under the situation that A master control cabinet breaks down, system switches to B master control cabinet, and under the control of B master control cabinet, can continue stable operation; And one of them master control cabinet is safeguarded in power down separately, has improved the reliability and stability of control system greatly.
To achieve these goals, the utility model is realized through following technical scheme:
The redundant switching device shifter of a kind of control system based on high speed serial communication; Be the main body with A, two master control cabinets of B and switching cabinet; With optical fiber is transmission medium, and A, two master control cabinets of B connect the switching cabinet respectively, when A master control cabinet or B master control cabinet break down; A, two master control cabinets of B are redundant each other, carry out the redundancy switching through switching cabinet; In order to make A, B master control cabinet and switching cabinet have strict control cycle synchronous, switch cabinet and can produce a synchronizing signal, and send to A, B master control cabinet respectively, A, B master control cabinet are that benchmark carries out system's control operation with this synchronizing signal;
Described main control computer case comprises master control borad, expansion board, backboard, master control borad its processing core control algolithm; Expansion board is the interface that master control cabinet and switching cabinet carry out exchanges data, and expansion board is provided with and connects the high-rate laser transceiver module that switches cabinet, and backboard is used for to each integrated circuit board power supply of master control cabinet and is used for the data communication between master control borad and the expansion board;
Described switching machine case comprises switch boards, backboard and performance element functional cards; Switch boards is the interface that this switching cabinet and A, B master control cabinet carry out exchanges data; Switch boards is provided with two high-rate laser transceiver modules, connects the high-rate laser transceiver module on the expansion board of A, B master control cabinet respectively; Backboard is used for to switching each integrated circuit board power supply of cabinet and being used for the data communication between switch boards and each functional cards; Functional cards is the performance element of control system, digital quantity input and output and analog quantity input and output performance element.
Described master control cabinet expansion board comprises high-rate laser transceiver module, FPGA control module, SerDes module, optic fiber transceiver module; The high-rate laser transceiver module is used for the master control cabinet and switches the mutual communication of cabinet; The FPGA control module is used to realize the steering logic of SerDes module and high-rate laser transceiver module and the parallel data bus line of reading and writing the SerDes module, carries out serial data transmission through high-speed differential signal between SerDes module and the high-rate laser transceiver module; Optic fiber transceiver module is used to receive the control cycle synchronizing signal of switching the cabinet switch boards, is used to guarantee the master control cabinet and switches cabinet under unified control cycle, work.
Described switching cabinet switch boards comprises two high-rate laser transceiver modules, FPGA control module, two SerDes modules, two optical fiber sending modules; Two high-rate laser transceiver modules are respectively applied for and switch cabinet and A, two mutual communications of master control cabinet of B; The FPGA control module is used to realize SerDes module and the steering logic of corresponding high-rate laser transceiver module and the parallel data bus line of read-write SerDes module, carries out serial data transmission through high-speed differential signal between SerDes module and the corresponding high-rate laser transceiver module; The optical fiber sending module is used to send the control cycle synchronizing signal of switching the cabinet switch boards, is used to guarantee A, two master control cabinets of B and switches cabinet under unified control cycle, work.
Described with optical fiber be medium high speed serial communication, can also be parallel data communication or wireless data communication.
Described master control cabinet, switching cabinet realize that the device of redundant switch logic is FPGA, can also be CPLD, single-chip microcomputer, ARM, DSP and PowerPC.
Compared with prior art, the beneficial effect of the utility model is:
Utilize high speed serial communication that A, B master control cabinet are connected to the switching cabinet; The redundancy that realizes A, B master control cabinet is switched; Make that under the situation that A master control cabinet breaks down, system switches to B master control cabinet, and under the control of B master control cabinet, can continue stable operation; And one of them master control cabinet is safeguarded in power down separately, has improved the reliability and stability of control system greatly.
Description of drawings
Fig. 1 is a main control computer box function synoptic diagram;
Fig. 2 is a switching machine box function synoptic diagram;
Fig. 3 is a master control cabinet expansion board functional schematic;
Fig. 4 is for switching cabinet switch boards functional schematic;
Fig. 5 is that A, B master control cabinet and switching cabinet are connected synoptic diagram;
Fig. 6 is sent to B master control cabinet synoptic diagram for the running status of A master control cabinet;
Fig. 7 is A, control system was carried out A master control cabinet order synoptic diagram when B master control cabinet was normal;
Fig. 8 switches to B master control cabinet synoptic diagram for control system after the A master control cabinet miscommunication.
Embodiment
See Fig. 5-Fig. 8; The redundant switching device shifter of a kind of control system based on high speed serial communication; With A, two master control cabinets of B with switch cabinet and be the main body, with optical fiber transmission medium, when A master control cabinet or B master control cabinet break down; A, two master control cabinets of B are redundant each other, carry out the redundancy switching through switching cabinet; In order to make A, B master control cabinet and switching cabinet have strict control cycle synchronous, switch cabinet and can produce a synchronizing signal, and send to A, B master control cabinet respectively, A, B master control cabinet are that benchmark carries out system's control operation with this synchronizing signal.
See Fig. 1, the main control computer case comprises master control borad, expansion board, backboard, master control borad its processing core control algolithm; Expansion board is the interface that master control cabinet and switching cabinet carry out exchanges data, and expansion board is provided with and connects the high-rate laser transceiver module that switches cabinet, and backboard is used for to each integrated circuit board power supply of master control cabinet and is used for the data communication between master control borad and the expansion board;
See Fig. 2; The switching machine case comprises switch boards, backboard and performance element functional cards; Switch boards is the interface that this switching cabinet and A, B master control cabinet carry out exchanges data; Switch boards is provided with two high-rate laser transceiver modules, connects the high-rate laser transceiver module on the expansion board of A, B master control cabinet respectively; Backboard is used for to switching each integrated circuit board power supply of cabinet and being used for the data communication between switch boards and each functional cards; Functional cards is the performance element of control system, like the digital quantity input and output, and the analog quantity input and output.
See Fig. 3; Master control cabinet expansion board comprises high-rate laser transceiver module, FPGA control module, SerDes module, optic fiber transceiver module; The high-rate laser transceiver module is used for the master control cabinet and switches the mutual communication of cabinet; The FPGA control module is used to realize the steering logic of SerDes module and high-rate laser transceiver module and the parallel data bus line of reading and writing the SerDes module, carries out serial data transmission through high-speed differential signal between SerDes module and the high-rate laser transceiver module; Optic fiber transceiver module is used to receive the control cycle synchronizing signal of switching the cabinet switch boards, is used to guarantee the master control cabinet and switches cabinet under unified control cycle, work.
See Fig. 4; Switch the cabinet switch boards and comprise high-rate laser transceiver module 0, high-rate laser transceiver module 1, FPGA control module, SerDes module 0, SerDes module 1, optical fiber sending module 0, optical fiber sending module 1; High-rate laser transceiver module 0 is used to switch cabinet and the mutual communication of A master control cabinet, and high-rate laser transceiver module 1 is used to switch cabinet and the mutual communication of B master control cabinet; The FPGA control module is used to realize SerDes module and the steering logic of corresponding high-rate laser transceiver module and the parallel data bus line of read-write SerDes module, carries out serial data transmission through high-speed differential signal between SerDes module and the corresponding high-rate laser transceiver module; Optical fiber sending module 0, optical fiber sending module 1 are used to send the control cycle synchronizing signal of switching the cabinet switch boards, are used to guarantee A, two master control cabinets of B and switch cabinet under unified control cycle, work.
Described redundancy switching method can be that the system failure automaticallyes switch, and also can be artificial initiatively switching.The system failure comprises power fail, master control integrated circuit board CPU software fault, integrated circuit board hardware fault, fiber failure etc.
Described high speed serial communication is to realize through this four part of FPGA control module, SerDes module, high-rate laser transceiver module and high speed fibre.FPGA is used to realize the steering logic of SerDes module and senior laser module, and the parallel data bus line of read-write SerDes module; Carry out serial data transmission through high-speed differential signal between SerDes module and the high-rate laser transceiver module; High-rate laser transceiver module between A, B master control cabinet and the expansion cabinet carries out data transmission through high speed fibre.
Described redundant the switching is meant that A, B master control cabinet are redundant each other, and when A master control cabinet breaks down, then control system switches to B master control cabinet, and continuation stable operation under the control of B master control cabinet; When B master control cabinet breaks down, then control system switches to A master control cabinet, and under the control of A master control cabinet, continues stable operation.Handoff functionality is realized by the switch boards of switching cabinet; A, B master control cabinet all can transmit control signal to switch boards at each control cycle, status information and other data; If control signal occurs wrong or a N continuous periodic Control does not have data distributing, switch cabinet so and will carry out the redundancy switching; Switch boards also can be carried out the active switching command of A, the transmission of B master control cabinet.
The data transmission of redundant handover control system is divided into upstream data output and downlink data transmission.Transmitting uplink data is to send to the master control cabinet by switching cabinet, and downlink data transmission is to send to the switching cabinet by the master control cabinet.The A master control cabinet of redundant handover control system need be known the running status of B master control cabinet, and B master control cabinet need be known the running status of A master control cabinet.A master control cabinet downlinks to switch boards with running status, and switch boards transmits upstream to B master control cabinet with A master control cabinet running status again; B master control cabinet passes to A master control cabinet with running status in the same way.A, B master control cabinet all can be transferred to switch boards with data downstream such as control signals at each control cycle, and the data of choosing A or B master control cabinet by switch boards again send to each performance element; Each control cycle, performance element can turn back to switch boards with information such as system states, and switch boards turns back to A, B master control cabinet respectively with these information, and A, B master control cabinet promptly can be received information such as same system state and handle.
Redundant handover control system is under system's control cycle of strictness, to work; In order to make A, B master control cabinet and switching cabinet have strict control cycle synchronous; Switch cabinet and can produce a synchronizing signal; And sending to A, B master control cabinet respectively, A, B master control cabinet are that benchmark carries out system's control operation with this synchronizing signal.
The present embodiment redundancy control system is that the high speed serial communication of medium is an example with optical fiber, but to be not limited to optical fiber be the high speed serial communication of medium, and it comprises parallel data communication, and wireless data communication and cable are the serial communication of medium.
The redundant handover control system of present embodiment realizes that the device of redundant switch logic is example with FPGA, but is not limited to FPGA, can also be CPLD, single-chip microcomputer, ARM, DSP and PowerPC.
Claims (5)
1. one kind based on the redundant switching device shifter of the control system of high speed serial communication; It is characterized in that; Being the main body with A, two master control cabinets of B and switching cabinet, is transmission medium with optical fiber, and A, two master control cabinets of B connect the switching cabinet respectively; A, two master control cabinets of B are redundant each other, carry out the redundancy switching through switching cabinet;
Described main control computer case comprises master control borad, expansion board, backboard, master control borad its processing core control algolithm; Expansion board is the interface that master control cabinet and switching cabinet carry out exchanges data, and expansion board is provided with and connects the high-rate laser transceiver module that switches cabinet, and backboard is used for to each integrated circuit board power supply of master control cabinet and is used for the data communication between master control borad and the expansion board;
Described switching machine case comprises switch boards, backboard and performance element functional cards; Switch boards is the interface that this switching cabinet and A, B master control cabinet carry out exchanges data; Switch boards is provided with two high-rate laser transceiver modules, connects the high-rate laser transceiver module on the expansion board of A, B master control cabinet respectively; Backboard is used for to switching each integrated circuit board power supply of cabinet and being used for the data communication between switch boards and each functional cards; Functional cards is the performance element of control system, digital quantity input and output and analog quantity input and output performance element.
2. the redundant switching device shifter of a kind of control system according to claim 1 based on high speed serial communication; It is characterized in that; Described master control cabinet expansion board comprises high-rate laser transceiver module, FPGA control module, SerDes module, optic fiber transceiver module; The high-rate laser transceiver module is used for the master control cabinet and switches the mutual communication of cabinet; The FPGA control module is used to realize the steering logic of SerDes module and high-rate laser transceiver module and the parallel data bus line of reading and writing the SerDes module, carries out serial data transmission through high-speed differential signal between SerDes module and the high-rate laser transceiver module; Optic fiber transceiver module is used to receive the control cycle synchronizing signal of switching the cabinet switch boards, is used to guarantee the master control cabinet and switches cabinet under unified control cycle, work.
3. the redundant switching device shifter of a kind of control system according to claim 1 based on high speed serial communication; It is characterized in that; Described switching cabinet switch boards comprises two high-rate laser transceiver modules, FPGA control module, two SerDes modules, two optical fiber sending modules; Two high-rate laser transceiver modules are respectively applied for and switch cabinet and A, two mutual communications of master control cabinet of B; The FPGA control module is used to realize SerDes module and the steering logic of corresponding high-rate laser transceiver module and the parallel data bus line of read-write SerDes module, carries out serial data transmission through high-speed differential signal between SerDes module and the corresponding high-rate laser transceiver module; The optical fiber sending module is used to send the control cycle synchronizing signal of switching the cabinet switch boards, is used to guarantee A, two master control cabinets of B and switches cabinet under unified control cycle, work.
4. the redundant switching device shifter of a kind of control system based on high speed serial communication according to claim 1 is characterized in that, described with optical fiber be medium high speed serial communication, can also be parallel data communication or wireless data communication.
5. the redundant switching device shifter of a kind of control system according to claim 1 based on high speed serial communication; It is characterized in that; Described master control cabinet, switching cabinet realize that the device of redundant switch logic is FPGA, can also be CPLD, single-chip microcomputer, ARM, DSP and PowerPC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120222122U CN202141905U (en) | 2011-06-28 | 2011-06-28 | Control system redundancy switching device based on high speed serial communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120222122U CN202141905U (en) | 2011-06-28 | 2011-06-28 | Control system redundancy switching device based on high speed serial communication |
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| CN202141905U true CN202141905U (en) | 2012-02-08 |
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| CN201120222122U Expired - Fee Related CN202141905U (en) | 2011-06-28 | 2011-06-28 | Control system redundancy switching device based on high speed serial communication |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684788A (en) * | 2012-04-23 | 2012-09-19 | 北京空间机电研究所 | Communicating device of optical remote sensor |
| CN104808482A (en) * | 2015-03-06 | 2015-07-29 | 南车株洲电力机车有限公司 | Failure redundancy treatment method and system |
| CN110597124A (en) * | 2019-09-18 | 2019-12-20 | 南京南瑞继保电气有限公司 | Communication architecture with redundant hardware |
| CN110979393A (en) * | 2019-12-14 | 2020-04-10 | 中车大连电力牵引研发中心有限公司 | Programmable logic control system applied to subway train |
| CN112702111A (en) * | 2020-12-23 | 2021-04-23 | 威创集团股份有限公司 | High-speed transceiver redundancy backup system |
-
2011
- 2011-06-28 CN CN201120222122U patent/CN202141905U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684788A (en) * | 2012-04-23 | 2012-09-19 | 北京空间机电研究所 | Communicating device of optical remote sensor |
| CN104808482A (en) * | 2015-03-06 | 2015-07-29 | 南车株洲电力机车有限公司 | Failure redundancy treatment method and system |
| CN104808482B (en) * | 2015-03-06 | 2017-03-08 | 南车株洲电力机车有限公司 | The method and system that a kind of fault redundance is processed |
| CN110597124A (en) * | 2019-09-18 | 2019-12-20 | 南京南瑞继保电气有限公司 | Communication architecture with redundant hardware |
| CN110979393A (en) * | 2019-12-14 | 2020-04-10 | 中车大连电力牵引研发中心有限公司 | Programmable logic control system applied to subway train |
| CN112702111A (en) * | 2020-12-23 | 2021-04-23 | 威创集团股份有限公司 | High-speed transceiver redundancy backup system |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20190628 |