CN110095974A - Split-phase dual redundant control method and control system are crossed in a kind of ground - Google Patents
Split-phase dual redundant control method and control system are crossed in a kind of ground Download PDFInfo
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- CN110095974A CN110095974A CN201810098400.9A CN201810098400A CN110095974A CN 110095974 A CN110095974 A CN 110095974A CN 201810098400 A CN201810098400 A CN 201810098400A CN 110095974 A CN110095974 A CN 110095974A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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Abstract
Cross split-phase dual redundant control method and control system the invention discloses a kind of ground, method include: principal series controller and it is standby be that controller receives identical input signal, the identical control logic of respective independent operating independently obtains control signal；The control of principal series controller is for the output state for being controller, and when principal series controller is normal, preparation controller does not export control signal, and when principal series controller failure, standby is controller output control signal.The present invention has the advantages that being easy to implement, can easily realizing the state synchronized between active and standby system, can effectively improve the reliability and stability of neutral-section passing system.
Description
Technical field
The present invention relates to individual-phase control technical field more particularly to a kind of ground excessively to cross split-phase dual redundant control method and control
System processed.
Background technique
In electric railway, individual-phase control plays the role of highly important in safe train operation excessively.It is existing excessive
In phase control system, one main one is generallyd use for two control hosts, when host breaks down, standby host is cut into control system
System, realized the control of split-phase, to improve the stability and reliability of system.Such as Patent No. 200910037419.3, name
The referred to as patent of invention and Patent No. 2010020198730.4 of " double computer hot standby automatic neutral-section passing device ", it is entitled
The utility model of " Double-mainboard high available " all studies the vehicle-mounted redundancy scheme for crossing split-phase,
It is less to the Redundant Control project study of the excessive phase in ground.
Summary of the invention
The technical problem to be solved in the present invention is that, for technical problem of the existing technology, the present invention provides one
It kind is easy to implement, can easily realize the state synchronized between active and standby system, the reliability of neutral-section passing system and steady can be effectively improved
Split-phase dual redundant control method and control system are crossed in qualitative ground.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows: split-phase dual redundant controlling party is crossed on a kind of ground
Method, principal series controller and it is standby be that controller receives identical input signal, the identical control logic of respective independent operating is independent
To control signal；The control of principal series controller is for the output state for being controller, and when principal series controller is normal, preparation controller is not defeated
Signal is controlled out, and when principal series controller failure, standby is controller output control signal.
Further, the principal series controller is by the way that for being that controller sends life signal, standby is that controller passes through prison
The life signal for surveying principal series controller, when the life signal exception, standby is controller output control signal.
Further, the principal series controller and it is standby be that controller realizes that control is patrolled by identical state machine program
Volume.
Further, further include active and standby system's state machine synchronization process: by comparing the principal series controller state machine and
It is standby be it is whether consistent between the state machine of controller, it is inconsistent, it is standby be the synchronous principal series controller of controller state machine program,
Input signal, intermediate variable and control signal.
Further, standby is state machine of the controller by the data set acquisition principal series controller of reading principal series controller,
Realize active and standby system's state machine synchronization process.
Further, the state of the state machine program includes wait state, into split-phase state, commutation state and split-phase out
State；When train reaches the preset position into split-phase in phase-separating section, state jumped to split-phase state by wait state；Work as column
When vehicle reaches preset switching position in phase-separating section, state is by crossing split-phase state transition to commutation state；When train reaches split-phase
In area when preset split-phase position out, state is by commutation state transition to split-phase state out.
Split-phase dual redundant control system is crossed on a kind of ground, including principal series controller and it is standby be controller, the principal series control
Device and it is standby be that controller receives identical input signal, the identical control logic of respective independent operating independently obtains control signal；
The control of principal series controller is for the output state for being controller, and when principal series controller is normal, preparation controller does not export control signal,
When principal series controller failure, standby is controller output control signal.
Further, the principal series controller is by the way that for being that controller sends life signal, standby is that controller passes through prison
The life signal for surveying principal series controller, when the life signal exception, standby is controller output control signal.
Further, the principal series controller and it is standby be that controller realizes that control is patrolled by identical state machine program
Volume.
Further, standby is that controller is also used to the state machine of principal series controller described in comparison and for the state for being controller
Whether consistent between machine, inconsistent, standby is state machine program, the input signal, intermediate variable of the synchronous principal series controller of controller
With control signal.
Further, standby is state machine of the controller by the data set acquisition principal series controller of reading principal series controller,
Realize active and standby system's state machine synchronization process.
Further, the state of the state machine program includes wait state, into split-phase state, commutation state and split-phase out
State；When train reaches the preset position into split-phase in phase-separating section, state jumped to split-phase state by wait state；Work as column
When vehicle reaches preset switching position in phase-separating section, state is by crossing split-phase state transition to commutation state；When train reaches split-phase
In area when preset split-phase position out, state is by commutation state transition to split-phase state out.
Compared with the prior art, the advantages of the present invention are as follows:
1, principal series controller of the invention is had a high regard for for being that controller runs simultaneously identical control logic in principal series control
All it is to cut system at any time for being controller when the meaning moment breaks down, works instead of principal series controller, switch speed is fast, can
It is high by property, stablize high.
2, for the present invention when principal series controller is normal, standby is although controller has the identical control logic of operation, generates phase
The control signal answered, but do not export and just export its control signal when it controls signal, only principal series controller failure, pass through this
Kind of strategy can guarantee it is active and standby tie up to only one output of any time, not will cause the confusion between the control signal of output,
Also ensure the stability of whole system.
3, principal series controller of the invention and it is standby be the control logic run on controller be state machine program, it is only necessary to
The control to phase process is crossed, also, adoption status machine program can be realized, it may be convenient to realize in limited several states
Principal series controller and it is standby be synchronization between controller, do not need to be related to the synchronous problem of complicated clock, on the one hand reduce
The realization difficulty of dual redundant control system, on the other hand also improves synchronous efficiency, improves the stability of dual redundant system
And reliability.
Detailed description of the invention
Fig. 1 is active and standby system's framework schematic diagram of specific embodiment of the invention dual redundant.
Fig. 2 is the state machine and state transition schematic diagram of the active and standby system of the specific embodiment of the invention.
Fig. 3 is specific embodiment of the invention passing neutral section control system schematic diagram.
Specific embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
It limits the scope of the invention.
Split-phase dual redundant control method is crossed on the ground of the present embodiment, principal series controller and standby to be that controller receives identical defeated
Enter signal, the identical control logic of respective independent operating independently obtains control signal；Standby principal series controller control is controller
Output state, when principal series controller is normal, preparation controller does not export control signal, when principal series controller failure, standby system's control
Device output control signal processed.
As shown in Figure 1, principal series controller and it is standby be that controller by input signal bus receives identical input signal, it is main
Be controller with it is standby be the identical control logic of controller independent operating, by respective control logic, operation independent is obtained solely
Vertical control signal, control signal 1 is the output signal of principal series controller in Fig. 1, and it is controller that control signal 2, which is standby,
Output signal.Under normal circumstances, control signal 1 and control signal 2 are identical signal, if principal series controller and standby system's control
Device all exports signal processed to output bus, then, there can be two signals on output bus, even if two signals are all correct
Signal can also cause the confusion on signal to control system.Therefore, in the present embodiment, principal series controller also controls standby system's control
The output state of device processed, i.e., when principal series controller is normal, it is that controller does not export control signal that control is standby；That is,
In this case, standby is that controller only executes control logic, obtain control signal 2 as a result, but the result is not exported.This
Sample, so that it may guarantee there was only the output of principal series controller on output bus as a result, controlling signal 1.And when principal series controller is sent out
When raw failure, principal series controller does not export control signal, and controlling standby is controller output control signal, at this point, output bus
It is upper it is only standby be control signal 2 that controller is exported.Due to it is standby be controller be it is hot standby, run simultaneously with principal series controller,
Institute is in case be that controller can replace principal series controller at any time at any time, to guarantee that stablizing for entire neutral-section passing system is transported
Row.
In the present embodiment, principal series controller is by the way that for being that controller sends life signal, standby is that controller passes through prison
The life signal for surveying principal series controller, when life signal exception, standby is controller output control signal.Life signal is used for table
Levy the life state of principal series controller, normal or failure.Standby is that controller monitors life transmitted by principal series controller at any time
Signal, when life signal reflection principal series controller is normal, standby is the control signal that controller does not export oneself then, when life is believed
When number reflection principal series controller failure, standby is the control signal that controller then exports oneself.Principal series controller is in output control letter
Number when, also judged according to the life signal of itself, then export control signal when normal, when failure does not export control letter then
Number.
In the present embodiment, as shown in Fig. 2, principal series controller and it is standby be that controller is real by identical state machine program
Existing control logic.The state of state machine program includes wait state, into split-phase state, commutation state and split-phase state out；Work as column
When vehicle reaches the preset position into split-phase in phase-separating section, state jumped to split-phase state by wait state；Divide when train reaches
In phase region when preset switching position, state is by crossing split-phase state transition to commutation state；It is preset when train reaches in phase-separating section
Go out split-phase position when, state is by commutation state transition to split-phase state out.In conjunction with Fig. 3, is run and passed through from left to right with train
It is illustrated for phase-separating section.When train has not arrived location point CG1, passing phase insulator device does not need to act, and input signal is total
Line does not have the position signal of train to input, and principal series controller and the standby state machine for being controller are not controlled all in wait state
Signal output processed.As train operation in-position point CG1, by the position signal of the available train of input signal bus,
Then state machine is jumped by wait state to obtain the control letter of electronic switch SCR_F1 conducting into split-phase state into split-phase state
Number.As train operation in-position point CG2, state machine is according to the position signal of train, by into split-phase state transition to commutation
State is sequentially output the control signal of electronic switch SCR_F1 shutdown and the control signal of electronic switch SCR_F2 conducting, realizes
Commutation operation.As train operation in-position point CG3, state machine is according to the position signal of train, extremely by commutation state transition
The control signal of split-phase state out, output electronic switch SCR_F2 shutdown jumps to waiting after turning off electronic switch SCR_F2
State.The mode of adoption status machine, does not need that clock is synchronous, and control logic, which only needs to input satisfaction, to be jumped between active and standby system
Condition can jump to NextState, simple, efficient.
In the present embodiment, further include active and standby system's state machine synchronization process: by comparing principal series controller state machine and
It is standby be it is whether consistent between the state machine of controller, it is inconsistent, it is standby be the synchronous principal series controller of controller state machine program,
Input signal, intermediate variable and control signal.Standby is that controller is controlled by reading the data set acquisition principal series of principal series controller
The state machine of device realizes active and standby system's state machine synchronization process.Due to it is standby be controller may not be with principal series controller synchronize open
Dynamic operation, or standby is that controller may be because failure and restart, therefore, it is standby be controller need with principal series controller into
Row synchronizes.Input signal itself be by input signal bus synchronous be sent to principal series controller and it is standby be controller, state
Intermediate variable, the operation result of machine program in the process of running are stored in data set, therefore, when synchronous, standby system's control
Device reads the data set of principal series controller, and the synchronization of state machine can be realized into the data set of itself in assignment；Alternatively, standby
It is controller by sending synchronization request to principal series controller, the content of data set is sent to standby system's control by principal series controller
Device, to realize synchronization.In the present embodiment, it is standby be controller compare itself state machine and principal series controller state machine one
Cause property just carries out the synchronization of state machine when continuously there is multiple compares cycles inconsistent.Since the control of adoption status machine is patrolled
Volume, therefore, does not need to be related to complicated clock synchronization issue in synchronizing process, on the one hand reduce dual redundant control system
It realizes difficulty, on the other hand also improves synchronous efficiency, improve the stability and reliability of dual redundant system.
Split-phase dual redundant control system is crossed on the ground of the present embodiment, including principal series controller and it is standby be controller, principal series control
Device processed and it is standby be that controller receives identical input signal, the identical control logic of respective independent operating independently obtains control letter
Number；The control of principal series controller is for the output state for being controller, and when principal series controller is normal, preparation controller does not export control letter
Number, when principal series controller failure, standby is controller output control signal.
As shown in Figure 1, principal series controller and it is standby be that controller by input signal bus receives identical input signal, it is main
Be controller with it is standby be the identical control logic of controller independent operating, by respective control logic, operation independent is obtained solely
Vertical control signal, control signal 1 is the output signal of principal series controller in Fig. 1, and it is controller that control signal 2, which is standby,
Output signal.Under normal circumstances, control signal 1 and control signal 2 should be identical signal, if principal series controller and standby
It is the control signal that controller all exports oneself to output bus, then, there will be two signals on output bus, even if two
A signal is all correct signal, and the confusion on signal can be also caused to control system.Therefore, in the present embodiment, principal series control
Device processed also controls to be the output state of controller, i.e., when principal series controller is normal, it is that controller does not export control that control is standby
Signal；That is, in the case, standby is that controller only executes control logic, obtain control signal 2 as a result, but simultaneously
The result is not exported.This way it is secured that there was only the output of principal series controller on output bus as a result, controlling signal 1.
And when principal series controller breaks down, principal series controller does not export control signal, and controlling standby is controller output control letter
Number, at this point, only standby on output bus is control signal 2 that controller is exported.Due to it is standby be controller be it is hot standby, with principal series
Controller synchronous operation, institute is in case be that controller can replace principal series controller at any time at any time, to guarantee entire mistake
The stable operation of split-phase system.
In the present embodiment, principal series controller and it is standby be controller by the data interaction of data/address bus real-time perfoming, including
Life signal and the data for carrying out state machine synchronization.Principal series controller is by the way that for being that controller sends life signal, standby system is controlled
Device processed is by the life signal of monitoring principal series controller, and when life signal exception, standby is controller output control signal.Life
Signal is used to characterize the life state of principal series controller, normal or failure.Standby is that controller monitors principal series controller institute at any time
The life signal of transmission, when life signal reflection principal series controller is normal, standby is the control letter that controller does not export oneself then
Number, when life signal reflects principal series controller failure, standby is the control signal that controller then exports oneself.Principal series controller exists
When output control signal, also judged according to the life signal of itself, then export control signal when normal, when failure then not
Output control signal.
In the present embodiment, as shown in Fig. 2, principal series controller and it is standby be that controller is real by identical state machine program
Existing control logic.The state of state machine program includes wait state, into split-phase state, commutation state and split-phase state out；Work as column
When vehicle reaches the preset position into split-phase in phase-separating section, state jumped to split-phase state by wait state；Divide when train reaches
In phase region when preset switching position, state is by crossing split-phase state transition to commutation state；It is preset when train reaches in phase-separating section
Go out split-phase position when, state is by commutation state transition to split-phase state out.In conjunction with Fig. 3, is run and passed through from left to right with train
It is illustrated for phase-separating section.When train has not arrived location point CG1, passing phase insulator device does not need to act, and input signal is total
Line does not have the position signal of train to input, and principal series controller and the standby state machine for being controller are not controlled all in wait state
Signal output processed.As train operation in-position point CG1, by the position signal of the available train of input signal bus,
Then state machine is jumped by wait state to obtain the control letter of electronic switch SCR_F1 conducting into split-phase state into split-phase state
Number.As train operation in-position point CG2, state machine is according to the position signal of train, by into split-phase state transition to commutation
State is sequentially output the control signal of electronic switch SCR_F1 shutdown and the control signal of electronic switch SCR_F2 conducting, realizes
Commutation operation.As train operation in-position point CG3, state machine is according to the position signal of train, extremely by commutation state transition
The control signal of split-phase state out, output electronic switch SCR_F2 shutdown jumps to waiting after turning off electronic switch SCR_F2
State.The mode of adoption status machine, does not need that clock is synchronous, and control logic, which only needs to input satisfaction, to be jumped between active and standby system
Condition can jump to NextState, simple, efficient.
In the present embodiment, standby is that controller is also used to compare the state machine of principal series controller and for the state for being controller
Whether consistent between machine, inconsistent, standby is state machine program, the input signal, intermediate variable of the synchronous principal series controller of controller
With control signal.Standby is the state machine that controller obtains principal series controller by reading the data set of principal series controller, realizes master
Standby is state machine synchronization process.It is that controller may not be and principal series controller synchronous averaging is run due to standby, or standby system's control
Device processed may be because failure and restart that therefore, standby is that controller needs are synchronized with principal series controller.Input signal sheet
Body be by input signal bus synchronous be sent to principal series controller and it is standby be controller, state machine program is in the process of running
Intermediate variable, operation result be stored in data set, therefore, when synchronous, standby is that controller reads principal series controller
Data set, and the synchronization of state machine can be realized into the data set of itself in assignment；Alternatively, standby is controller by principal series
Controller sends synchronization request, and being sent to the content of data set standby by principal series controller is controller, to realize synchronization.At this
In embodiment, standby is the consistency of state machine and the state machine of principal series controller that controller compares itself, multiple when continuously having
When compares cycle is inconsistent, the synchronization of state machine is just carried out.Due to adoption status machine control logic, in synchronizing process
In do not need to be related to complicated clock synchronization issue, on the one hand reduce the realization difficulty of dual redundant control system, on the other hand
Synchronous efficiency is also improved, the stability and reliability of dual redundant system are improved.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.Although of the invention
It has been disclosed in a preferred embodiment above, however, it is not intended to limit the invention.Therefore, all without departing from technical solution of the present invention
Content, technical spirit any simple modifications, equivalents, and modifications made to the above embodiment, should all fall according to the present invention
In the range of technical solution of the present invention protection.
Claims (12)
1. split-phase dual redundant control method is crossed on a kind of ground, it is characterised in that: principal series controller and standby to be that controller receives identical
Input signal, the identical control logic of respective independent operating independently obtains control signal；The standby system's control of principal series controller control
The output state of device, when principal series controller is normal, preparation controller does not export control signal, standby when principal series controller failure
It is controller output control signal.
2. split-phase dual redundant control method is crossed on ground according to claim 1, it is characterised in that: the principal series controller is logical
It crosses to for being that controller sends life signal, standby is life signal of the controller by monitoring principal series controller, when the life
When abnormal signal, standby is controller output control signal.
3. split-phase dual redundant control method is crossed on ground according to claim 1, it is characterised in that: the principal series controller and
Standby is that controller realizes control logic by identical state machine program.
4. split-phase dual redundant control method is crossed on ground according to claim 3, it is characterised in that: further include active and standby system's state
Machine synchronizing process: by comparing the principal series controller state machine and it is standby be between the state machine of controller it is whether consistent, no
It is consistent then it is standby be the synchronous principal series controller of controller state machine program, input signal, intermediate variable and control signal.
5. split-phase dual redundant control method is crossed on ground according to claim 4, it is characterised in that: standby is that controller passes through reading
It takes the data set of principal series controller to obtain the state machine of principal series controller, realizes active and standby system's state machine synchronization process.
6. split-phase dual redundant control method is crossed on ground according to claim 5, it is characterised in that: the state machine program
State includes wait state, into split-phase state, commutation state and split-phase state out；When train reach phase-separating section in it is preset into point
When phase position, state jumped to split-phase state by wait state；When train reaches preset switching position in phase-separating section, shape
State is by crossing split-phase state transition to commutation state；When train reaches preset split-phase position out in phase-separating section, state is by commutation
State transition is to split-phase state out.
7. split-phase dual redundant control system is crossed on a kind of ground, it is characterised in that: including principal series controller and it is standby be controller, it is described
Principal series controller and it is standby be that controller receives identical input signal, the identical control logic of respective independent operating independently obtains
Control signal；The control of principal series controller is for the output state for being controller, and when principal series controller is normal, preparation controller is not exported
Signal is controlled, when principal series controller failure, standby is controller output control signal.
8. split-phase dual redundant control system is crossed on ground according to claim 7, it is characterised in that: the principal series controller is logical
It crosses to for being that controller sends life signal, standby is life signal of the controller by monitoring principal series controller, when the life
When abnormal signal, standby is controller output control signal.
9. split-phase dual redundant control system is crossed on ground according to claim 7, it is characterised in that: the principal series controller and
Standby is that controller realizes control logic by identical state machine program.
10. split-phase dual redundant control system is crossed on ground according to claim 9, it is characterised in that: standby is that controller is also used
It is whether consistent between the state machine and the standby state machine for being controller of the principal series controller, inconsistent then standby system's control
State machine program, input signal, intermediate variable and the control signal of the synchronous principal series controller of device.
11. split-phase dual redundant control system is crossed on ground according to claim 10, it is characterised in that: standby is that controller passes through
The data set for reading principal series controller obtains the state machine of principal series controller, realizes active and standby system's state machine synchronization process.
12. split-phase dual redundant control system is crossed on ground according to claim 11, it is characterised in that: the state machine program
State include wait state, into split-phase state, commutation state and split-phase state out；When train reach phase-separating section in it is preset into
When split-phase position, state jumped to split-phase state by wait state；When train reaches preset switching position in phase-separating section,
State is by crossing split-phase state transition to commutation state；When train reaches preset split-phase position out in phase-separating section, state is by changing
Phase state transition is to split-phase state out.
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| CN113835337A (en) * | 2021-10-19 | 2021-12-24 | 中车株洲电力机车有限公司 | Method and system for train network redundancy control |
| CN113835337B (en) * | 2021-10-19 | 2023-07-11 | 中车株洲电力机车有限公司 | Train network redundancy control method and system |
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