CN108536046A - Main control unit switching method and locomotive communication equipment for locomotive communication equipment - Google Patents
Main control unit switching method and locomotive communication equipment for locomotive communication equipment Download PDFInfo
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- CN108536046A CN108536046A CN201710119768.4A CN201710119768A CN108536046A CN 108536046 A CN108536046 A CN 108536046A CN 201710119768 A CN201710119768 A CN 201710119768A CN 108536046 A CN108536046 A CN 108536046A
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- 238000004891 communication Methods 0.000 title claims abstract description 81
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 230000009977 dual effect Effects 0.000 claims abstract description 10
- 230000003993 interaction Effects 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000004044 response Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 1
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- 230000002452 interceptive effect Effects 0.000 description 1
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The present invention relates to a kind of main control unit switching methods for locomotive communication equipment and dual master control locomotive communication equipment, method to include：First main control unit executes control function and inquires communication state to all functional units of locomotive communication equipment；The judgement of second main control unit inquires whether result is normal, if otherwise executing control function and judging whether the first main control unit restores normal, and sends recovery request to all functional units when restoring normal；Second main control unit judges whether to receive the request-reply signal of all functional units, if then the first main control unit restoring control function, if otherwise returning to waiting for；Equipment includes bus board and the control module being set on bus board and communication function module, control module include identical first main control unit of structure and the second main control unit, and the two is connect with communication function module by CAN bus.Compared with prior art, the present invention has many advantages, such as that hardware configuration is simple, reliability is high and saves cost.
Description
Technical field
The present invention relates to railway communication fields, more particularly, to a kind of main control unit switching side for locomotive communication equipment
Method and locomotive communication equipment.
Background technology
Due to the needs of railway development, the locomotive communication equipment of system-wide equipment more than 27000, locomotive communication equipment
With the time also more than 10 years, important function has been played in the daily transportation command of railway.
During the utilization of locomotive communication equipment, once locomotive communication equipment main control unit breaks down, entire locomotive
Communication equipment cannot work normally.During train operation, failure is cannot exclude, to reduce train operation efficiency,
Cause Train delay accident.Current active-standby switch technology, hardware need the circuit of CPLD logic chips and other auxiliary, increase
Cost.The method for controlling signal is relatively complicated, generally requires, heartbeat signal, reset signal, active and standby status signal,
CPLD communication bus, data synchronize equisignal line；Leading to active-standby switch, control is more complicated.
Patent CN101272514A provides the hot-plug redundant communication device in a kind of railway communication, passes through and is arranged two
Power module, two controllers and two Railroad Communication System modules realize redundancy backup, to break down in a side
When switch over operation, although this mode can guarantee the stability of communication, but need to arrange excessive hardware device, therefore
The great wasting of resources is caused when hindering little.
Invention content
The purpose of the present invention is provide a kind of main control unit switching method for locomotive communication equipment regarding to the issue above
And dual master control locomotive communication equipment.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of main control unit switching method for locomotive communication equipment, the method includes the following steps：
1) the first main control unit executes control function and carries out communication state to all functional units of locomotive communication equipment
It inquires；
2) the second main control unit, which enters, powers on wait state, and judges whether the first main control unit is equal with all functional units
Normal communication, if then return to step 1), if otherwise entering step 3)；
3) the first main control unit, which enters, powers on wait state, and the second main control unit executes control function and judges the first master control
Whether unit restores normal, if then recovery request is sent to all functional units, if otherwise return to step 3)；
4) the second main control unit judges whether to receive the request-reply signal of all functional units, if then the first master control list
First restoring control function, the second main control unit, which enters, powers on wait state, if otherwise return to step 4).
The step 2) is specially：
21) the second main control unit, which enters, powers on wait state；
22) functional unit judges whether that the communication state that the first main control unit is received within the first stipulated time is inquired, if
It is to show the first main control unit and the functional unit normal communication, if otherwise sending upper request letter to the second main control unit
Number；
23) the second main control unit judges whether to receive upper request signal and whether the upper request signal is effective, if
It is to enter step 3), if otherwise return to step 1).
First stipulated time is 5s~10s.
The step 3) is specially：
31) the first main control unit, which enters, powers on wait state, and the second main control unit executes control function；
32) the second main control unit sends recovery state interrogator signal every the second stipulated time to the first main control unit, sentences
It is disconnected whether to receive feedback signal, if then entering step 33), if otherwise return to step 31)；
33) the second main control unit judges whether the feedback signal received reaches stipulated number, if then to the first master control list
Member sends request of stepping down, if otherwise return to step 32)；
34) the second main control unit judges whether to receive the resigning request-reply of the first main control unit, if then to whole work(
Energy unit sends recovery request and enters step 4), if otherwise return to step 33).
Second stipulated time is 15s~20s.
The stipulated number is 5~10 times.
A kind of dual master control locomotive communication equipment using main control unit switching method as described above, for related to railway
Equipment is communicated, including bus board and the control module and communication function module that are set on bus board, the control module
Including identical first main control unit of structure and the second main control unit, first main control unit and the second main control unit with it is logical
Telecommunication function module is connected by CAN bus.
First main control unit include be connected with each other MCU controllers and storage chip, the MCU controllers with communicate
Function module connects, and for executing control function, the storage chip is used to record the failure of MCU controllers generation.
The communication function module includes GSM-R voice units, the GSM-R being connect with control module by CAN bus
Data cell, GPS unit, recording unit, interface unit, locomotive station unit, train alarm unit and human-computer interaction terminal.
The equipment further includes external power supply, and the external power supply is connect with bus board, in order to control module and communication function
Module for power supply.
Compared with prior art, the invention has the advantages that：
(1) it by the monitoring of second main control unit pair the first main control unit communication state, can be sent out in the first main control unit
Timely automation switching is carried out when raw failure, while can in time be returned control after the first main control unit restores normal
To the first main control unit, switches high degree of automation and feedback is timely, while redundancy backup is carried out without other hardware devices,
Cost is greatly saved.
(2) second main control units are kept powered on wait state when the first main control unit works, and to the first master control list
The communication state real time monitoring of member, can ensure carry out at the first time when the first main control unit breaks down so anti-
Feedback, and the time of hot-swap is shorter than the time that cold cut is changed, thus response speed is improved, it ensure that the normal operation of equipment.
(3) functional unit is sentenced by judging that the communication state for whether receiving the first main control unit in 5s~10s is inquired
Disconnected current whether be disconnected with the first main control unit connect, both ensured it is swift with judgement and also also avoid judging the time is too short and
Caused by judge by accident.
The recovery state interrogator signal that (4) second main control units continuously send it in the first main control unit carries out anti-in time
Resigning signal is sent to the first main control unit after feedback, it is ensured that control is timely returned after the recovery of the first main control unit,
Avoid the case where still being controlled by the second main control unit after the first main control unit restores normal, it is ensured that the second main control unit
It is only used as Standby control unit rather than main logic unit, extends the service life of the second main control unit.
(5) first main control units and the second main control unit are connect by CAN bus with communication function module, with other companies
The mode of connecing is compared, and this connection type is simple and transmission speed is fast, while cost is greatly saved.
(6) first main control units include the MCU controllers and storage chip being connected with each other, and are led by storage chip pair first
The failure that control unit occurs is recorded in real time, is investigated and is repaired convenient for staff.
(7) each unit between communication function module is connected by CAN bus, and uniformity is strong, convenient for communication and is supplied
Electricity, while communication function module is additionally provided with human-computer interaction terminal, enhances the simplicity of operation.
(8) the dual master control locomotive communication equipment connect power supply with bus board by external power supply, wiring it is simple and save at
This, avoid each unit individually power supply and caused by chaotic wiring.
Description of the drawings
Fig. 1 is the flow chart of the main control unit switching method for locomotive communication equipment；
Fig. 2 is the structural schematic diagram of dual master control locomotive communication equipment；
Wherein, 1 is the first main control unit, and 2 be the second main control unit, and 3 be GSM-R voice units, and 4 be GSM-R data sheets
Member, 5 be GPS unit, and 6 be recording unit, and 7 be interface unit, and 8 be locomotive station unit, and 9 be train alarm unit, and 10 be people
Machine interactive terminal, 11 be external power supply, and 12 be bus board.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
As shown in Figure 1, present embodiments providing a kind of main control unit switching method for locomotive communication equipment and double masters
Locomotive communication equipment is controlled, this method includes the following steps：
S1) the first main control unit 1 executes control function and carries out communication shape to all functional units of locomotive communication equipment
State is inquired；
S2) the second main control unit 2, which enters, powers on wait state, and judge the first main control unit 1 whether with repertoire list
The equal normal communication of member, if then return to step s1), if otherwise entering step s3)：
S21) the second main control unit 2, which enters, powers on wait state；
S22) functional unit judges whether to receive the communication of the first main control unit 1 within the first stipulated time (5s~10s)
State is inquired, if then showing the first main control unit 1 and the functional unit normal communication, if otherwise being sent out to the second main control unit 2
Serve a request signal；
S23) the second main control unit 2 judges whether to receive upper request signal and whether the upper request signal is effective,
If then entering step s3), if otherwise return to step s1)；
S3) the first main control unit 1, which enters, powers on wait state, and the second main control unit 2 executes control function and judges first
Whether main control unit 1 restores normal, if then recovery request is sent to all functional units, if otherwise return to step s3)：
S31) the first main control unit 1, which enters, powers on wait state, and the second main control unit 2 executes control function；
S32) the second main control unit 2, which is sent every the second stipulated time (15s~20s) to the first main control unit 1, restores shape
State interrogator signal judges whether to receive feedback signal, if then entering step 33), if otherwise return to step s31)；
S33) the second main control unit 2 judges whether the feedback signal that receives reaches stipulated number (5~10 times), if then to
First main control unit 1 sends request of stepping down, if otherwise return to step s32)；
S34) the second main control unit 2 judges whether to receive the resigning request-reply of the first main control unit 1, if then to whole
Functional unit sends recovery request and enters step 4), if otherwise return to step s33)；
S4) the second main control unit 2 judges whether to receive the request-reply signal of all functional units, if then the first master control
1 restoring control function of unit, the second main control unit 2, which enters, powers on wait state, if otherwise return to step s4).
According to above-mentioned main control unit switching method, the present embodiment proposes a kind of dual master control locomotive communication equipment, such as Fig. 2
Shown, the equipment with railway relevant device for being communicated, including bus board 12 and the control mould that is set on bus board 12
Block and communication function module, control module include identical first main control unit, 1 and second main control unit 2 of structure, the first master control
Unit 1 and the second main control unit 2 are connect with communication function module by CAN bus.First main control unit 1 includes being connected with each other
MCU controllers and storage chip, MCU controllers connect with communication function module, and for executing control function, storage chip is used
In the failure that record MCU controllers occur.Communication function module includes the GSM-R being connect with control module by CAN bus
Voice unit 3, GSM-R data cells 4, GPS unit 5, recording unit 6, interface unit 7, locomotive station unit 8, train alarm
Unit 9 and human-computer interaction terminal 10.The equipment further includes external power supply 11, and external power supply 11 is connect with bus board 12, in order to control
Module and communication function module for power supply.
MCU controller of the chip of STM32 series of the final choice with CAN as main control unit in the present embodiment, together
The FLASH chip of Shi Xuanyong SST25VF016B models preserves failure logging as storage chip, which carries out master control and cut
The detailed process changed is as follows：
First main control unit 1 is defaulted as master control, is communicated with each unit, and the first main control unit 1 is backup.Below
" master control " indicates that the first main control unit 1, " backup " indicate the second main control unit 2；Because hot-swap is shorter than cold switching time,
First main control unit 1 and the second main control unit 2 host after the power is turned on, all in energization normal operating conditions；
" master control " inquires version number every 1s to each unit (including backup units), as " heartbeat " signal, Ge Gedan
Member replys version number's response, and " master control " receives response, is considered as effectively, otherwise it is assumed that with the unit communication failure；Failure is stored in
Onboard FLASH reports human-computer interaction terminal 10, if shutdown re-powers, " master control " is preferentially reported to human-computer interaction terminal 10,
So as to maintenance personnel's timely processing failure；
Each functional unit and " master control " setting 5s " shake hands " acknowledgement mechanism in limited time；If there there is no some functional unit in 5s
Response, " master control " are then thought " shaking hands " failure, are considered as and the functional unit communication failure；Failure will be stored in " master control " plate
FLASH is carried, human-computer interaction terminal 10 is reported, if shutdown re-powers, " master control " is preferentially reported to human-computer interaction terminal 10, with
Just maintenance personnel's timely processing failure；
Once not receiving primary " master control " in other functional units 5s inquires version number " heartbeat " signal, other work(
Can unit to " backup " transmission " upper support " signal；" backup " then differentiates, confirms " heartbeat " signal for not receiving " master control "
More than 5s, " backup " formally takes over master control function；
After " backup " " upper ", master control function is taken over, and send " backup " " upper " letter to human-computer interaction terminal 10 first
Breath, and it is stored in FLASH, if shutdown re-powers, " backup " sends the second main control unit 2 to human-computer interaction terminal 10 first
" upper " information, allows the failure of the first main control unit of maintenance personnel's timely processing 1；
After " backup " " upper ", equally (including first main control unit 1) is sent to each unit and inquire version number, as
" heartbeat " signal, each unit reply version number's response, and " backup " receives response, are considered as effectively, otherwise it is assumed that logical with the unit
Believe failure；
If after " backup " " upper ", inquiring the version number of main control unit 1, it can every time inquire, can receive in time in 15s
1 response of main control unit then sends " resignings " to main control unit 1 and orders, and main control unit 1 should answer receiving " resigning ", " backup " to
Each unit sends " resigning " order；
If still functional unit is not ordered to " backup " response " resigning ", " backup " is just always to the function list
Member sends " resigning " order, until the functional unit replys " resigning "；Otherwise the unit is considered as communication failure, preserves FLASH, and
Human-computer interaction terminal 10 is reported to show.
Claims (10)
1. a kind of main control unit switching method for locomotive communication equipment, which is characterized in that the method includes the following steps：
1) the first main control unit executes control function and carries out communication state to all functional units of locomotive communication equipment and inquires；
2) the second main control unit, which enters, powers on wait state, and judges whether the first main control unit is normal with all functional units
Communication, if then return to step 1), if otherwise entering step 3)；
3) the first main control unit, which enters, powers on wait state, and the second main control unit executes control function and judges the first main control unit
Whether restore normal, if then recovery request is sent to all functional units, if otherwise return to step 3)；
4) the second main control unit judges whether to receive the request-reply signal of all functional units, if then the first main control unit is extensive
Multiple control function, the second main control unit, which enters, powers on wait state, if otherwise return to step 4).
2. the main control unit switching method according to claim 1 for locomotive communication equipment, which is characterized in that the step
It is rapid 2) to be specially：
21) the second main control unit, which enters, powers on wait state；
22) functional unit judges whether that the communication state that the first main control unit is received within the first stipulated time is inquired, if then
Show the first main control unit and the functional unit normal communication, if otherwise sending upper request signal to the second main control unit；
23) the second main control unit judges whether to receive upper request signal and whether the upper request signal is effective, if then
It enters step 3), if otherwise return to step 1).
3. the main control unit switching method according to claim 2 for locomotive communication equipment, which is characterized in that described
One stipulated time was 5s~10s.
4. the main control unit switching method according to claim 1 for locomotive communication equipment, which is characterized in that the step
It is rapid 3) to be specially：
31) the first main control unit, which enters, powers on wait state, and the second main control unit executes control function；
32) the second main control unit sends recovery state interrogator signal every the second stipulated time to the first main control unit, and judgement is
It is no to receive feedback signal, if then entering step 33), if otherwise return to step 31)；
33) the second main control unit judges whether the feedback signal received reaches stipulated number, if then being sent out to the first main control unit
Resigning is sent to ask, if otherwise return to step 32)；
34) the second main control unit judges whether to receive the resigning request-reply of the first main control unit, if then to repertoire list
Position sends recovery request and enters step 4), if otherwise return to step 33).
5. the main control unit switching method according to claim 4 for locomotive communication equipment, which is characterized in that described
Two stipulated times were 15s~20s.
6. the main control unit switching method according to claim 4 for locomotive communication equipment, which is characterized in that the rule
It is 5~10 times to determine number.
7. a kind of dual master control locomotive communication equipment using main control unit switching method as described in claim 1, it is used for and iron
Road relevant device is communicated, including bus board and the control module and communication function module that are set on bus board, feature
Be, the control module includes identical first main control unit of structure and the second main control unit, first main control unit and
Second main control unit is connect with communication function module by CAN bus.
8. dual master control locomotive communication equipment according to claim 7, which is characterized in that first main control unit includes phase
The MCU controllers and storage chip to connect, the MCU controllers are connect with communication function module, for executing control function,
The storage chip is used to record the failure of MCU controllers generation.
9. dual master control locomotive communication equipment according to claim 7, which is characterized in that the communication function module includes equal
GSM-R voice units, GSM-R data cells, GPS unit, recording unit, the interface being connect with control module by CAN bus
Unit, locomotive station unit, train alarm unit and human-computer interaction terminal.
10. dual master control locomotive communication equipment according to claim 7, which is characterized in that the equipment further includes external electricity
Source, the external power supply are connect with bus board, in order to control module and communication function module for power supply.
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| CN109060173A (en) * | 2018-09-27 | 2018-12-21 | 宁波中车时代传感技术有限公司 | A kind of railcar fluorescence temperature measurement system mode adaptive method and its railcar fluorescence temperature measurement system |
| CN113934135A (en) * | 2021-12-14 | 2022-01-14 | 国网江苏省电力工程咨询有限公司 | Compound monitored control system based on electric power piping lane |
| CN116055299A (en) * | 2023-01-18 | 2023-05-02 | 紫光云技术有限公司 | Method for optimizing cut-off after soft gateway fault recovery |
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| CN116055299A (en) * | 2023-01-18 | 2023-05-02 | 紫光云技术有限公司 | Method for optimizing cut-off after soft gateway fault recovery |
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Application publication date: 20180914 |