CN201592724U - Time synchronous system of train control vehicular device - Google Patents
Time synchronous system of train control vehicular device Download PDFInfo
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- CN201592724U CN201592724U CN2010200469717U CN201020046971U CN201592724U CN 201592724 U CN201592724 U CN 201592724U CN 2010200469717 U CN2010200469717 U CN 2010200469717U CN 201020046971 U CN201020046971 U CN 201020046971U CN 201592724 U CN201592724 U CN 201592724U
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Abstract
A time synchronous system of a train control vehicular device belongs to the technical field of railway safety control, and aims to solve the problems that in the time synchronous technology of an existing train control vehicular ATP system device, time synchronous accuracy is lower, and safety and reliability are worse. The time synchronous system comprises four time synchronous units; devices are simultaneously electrified, a synchronous demander starting firstly is a primary time synchronous unit, others are all secondary time synchronous units; two ends of the primary time synchronous unit are respectively connected with one secondary time synchronous unit to be used for providing time standards adjusting time synchronization for the connected secondary time synchronous unit; two ends of each of pluralities of the secondary time synchronous units are respectively connected to one secondary time synchronous unit; or one end of each of the pluralities of the auxiliary time synchronous units is connected with the primary time synchronous unit; and the other ends of the pluralities of the auxiliary time synchronous units are connected with one secondary time synchronous unit to be used for adjusting local time to time synchronous with the primary time synchronous unit. The time synchronous system realizes multi-machine real-time time synchronization by hardware, has higher synchronous accuracy, and higher safety and reliability.
Description
Technical field
The utility model relates to the clock synchronization system that equipment is carried in a kind of row car controlling, belongs to railway security control technology field.
Background technology
ATP (Automatic Train Protection, train overspeeding protection) system is nucleus equipment and the gordian technique that equipment is carried in the row car controlling.The fail-safe computer of redundancy structure is the nucleus module of ATP system, has both born message pick-up, processing, the output of whole system and outside other modules, and bears the control calculating of total system, is responsible for guaranteeing security of system.The redundant safety computer system is responsible for various module informations in receiving train travelling process, carry out the operation of railway control logic, and pass to the operation control data to external DMI display equipment, and above-mentioned all control processs all need be finished under synchronous time standard by all equipment in system, time lock are had the requirement of high reliability, high real-time, high security.Along with the high speed development of railway, traditional redundant safety computing machine can not satisfy the supreme requirement of railway security.Therefore, the ATP system equipment that meets the safe redundant computation level of CTCS2/CTCS3 level demand has the very big market demand and application prospect.
The time synchronizing method employing of the ATP system equipment of existing railway applications mostly is network or serial data is synchronous, be to adopt network or serial ports to connect between the multimachine, send the synchrodata frame by network or serial ports, whether the Frame of being judged reception by application program is correct, and carries out timeout treatment by application program.Specifically technical scheme as shown in Figure 1: each computing machine connects by network or serial ports, and other three computing machines of synchrodata that require each computing machine to send can both receive.When work, computing machine sends the synchronization frame data by application program, prepares to receive the synchrodata of other three computing machines simultaneously, when application layer receives the synchrodata of other three computing machines, and judges that reception then is success synchronously when correct.When failing to receive the synchrodata of other three computing machines, the overtime time meter of start-up system judges whether to surpass time-out time, if surpassed time-out time then be synchronization failure.
Therefore, in the Time synchronization technique of existing ATP system equipment, the synchronous process need application layer of life period participates in, occupying system resources is more, influenced by other application program easily and the instability of application program itself, caused that timing tracking accuracy is lower, safety and the relatively poor problem of reliability.
The utility model content
The utility model is for solving in the Time synchronization technique of existing ATP system equipment, and the life period synchronization accuracy is lower, safety and the relatively poor problem of reliability, has proposed the clock synchronization system that equipment is carried in a kind of row car controlling, comprising:
Main time lock unit is arranged in the computing machine of ATP system, and two ends connect one respectively from the time lock unit, is used to bonded assembly that the time standard of adjusting time lock is provided from the time lock unit;
A plurality of from the time lock unit, be arranged in the computing machine of ATP system, two ends connect respectively one from the time lock unit or an end connect main time lock unit one end and connect one from the time lock unit, be used for local zone time is adjusted into time with main time lock units synchronization.
The utility model realizes that by hardware the multimachine real-time time is synchronous, solved by software and realized that synchronous occupying system resources is more, influenced by other application program and the problem of unstable of application program own easily, it is also higher to have higher synchronous precision, safety and a reliability.
Description of drawings
Fig. 1 is a kind of clock synchronization system structural representation of prior art;
Fig. 2 is the structural representation that the equipment clock synchronization system is carried in a kind of row car controlling that the specific embodiment of the present utility model provides.
The specific embodiment
The specific embodiment of the present utility model provides a kind of row car controlling to carry the equipment clock synchronization system, specifically can comprise 4 time lock unit, equipment powers on simultaneously, initiating synchronisation requirement person earlier is main time lock unit, other are from the time lock unit, corresponding main time lock unit is arranged in the computing machine of ATP system, and two ends connect one respectively from the time lock unit, is used to bonded assembly that the time standard of adjusting time lock is provided from the time lock unit; Corresponding a plurality ofly be separately positioned on the computing machine of ATP system from the time lock unit, two ends connect respectively one from the time lock unit or an end connect main time lock unit one end and connect one from the time lock unit, be used for local zone time is adjusted into time with main time lock units synchronization.
Further, corresponding main time lock unit also comprises the time that is used for after through predetermined wait time bonded assembly is adjusted into from the time lock unit with main time lock units synchronization, be used for being adjusted into time with main time lock units synchronization from the time lock unit at one or more preset times bonded assembly of naming a person for a particular job, be used for as if one from time lock cell failure or a system computer fault from place, time lock unit, then main time lock unit disconnects after through predetermined wait time and being connected of the time lock unit of fault, and be used for if one from the time lock unit or a system computer fault from place, time lock unit, then the system computer from place, time lock unit of fault is restarted, after restarting with time with main time lock units synchronization of being adjusted into from the time lock unit of the system computer of trouble-shooting.
For the equipment clock synchronization system is carried in a kind of row car controlling that clearer this specific embodiment of explanation provides, now as the ATP system computer this specific embodiment is described, and present embodiment can also be suitable for 5 and gets 3,3 and get 2 and 2 * 2 modes of getting the multiple fail-safe computer of 2 equivalent algorithm with a kind of 2 * 2 computing machines of getting 2 redundancy structures.As shown in Figure 2, this system can comprise that specifically a main time lock unit 21 and three are from time lock unit 22.
Main time lock unit 21, main time lock unit is arranged in the computing machine of ATP system, and two ends connect one respectively from the time lock unit, are used to bonded assembly that the time standard of adjusting time lock is provided from the time lock unit.
In this specific embodiment, a main time lock unit 21 is arranged in the computing machine of ATP system, and as the time lock benchmark of other computing machine of ATP system, main time lock unit 21 will be adjusted into synchronous time of local zone time with main time lock unit 21 respectively with its two ends bonded assembly from time lock unit 22.
A plurality of from time lock unit 22, a plurality of from the time lock unit, be arranged in the computing machine of ATP system, two ends connect respectively one from the time lock unit or an end connect main time lock unit one end and connect one from the time lock unit, be used for local zone time is adjusted into time with main time lock units synchronization.
Three that are arranged in the ATP system computer all are adjusted into local zone time with the local zone time of main time lock unit 21 synchronous from time lock unit 22, wherein with two of the two ends bonded assemblys of main time lock unit 21 from time lock unit 22 local zone time is adjusted into the local zone time of main time lock unit 21 synchronous, two ends all with from time lock unit 22 local zone time is adjusted into any one bonded assembly synchronous from time lock unit 22 bonded assemblys from the local zone time of time lock unit 22.
Further, in order synchronization accuracy to be reached the us level, this specific embodiment also provides multiple time lock solution under emergency case, specifically can comprise:
Time lock when (1) the ATP system computer starts: main time lock unit 21 is adjusted into bonded assembly the time synchronous with main time lock unit 21 after through predetermined wait time from time lock unit 22.Because influences such as the toggle speed of ATP system computer, signaling rate, the time that initialization finishes has certain difference, be as short as most for 1 second, the longlyest reach a few hours, therefore the time lock request with main time lock unit 21 postpones to send after the corresponding time, can guarantee and all accuracys from time lock unit 22 time lock.
(2) the ATP system computer deadline is carried out time lock once more synchronously: main time lock unit 21 is adjusted into the time synchronous with main time lock unit 21 at one or more preset times bonded assembly of naming a person for a particular job from time lock unit 22.Because calculation error may appear in ATP system computer run duration, therefore reruning a period of time synchronously in the deadline just may the long error of epoch, so need carry out time lock again.Can by main time lock unit 21 after last time time lock two hours or longer time once more with synchronous from 22 deadlines of time lock unit.
(3) time lock during the computing machine et out of order in the ATP system: if one from time lock unit 22 faults or individual system computer fault from 22 places, time lock unit, then main time lock unit 21 disconnects being connected from time lock unit 22 with fault after through predetermined wait time.When computing machine in the ATP system or the time lock unit et out of order in the computing machine, the time lock unit shielding of fault can need be guaranteed the normal operation of ATP system, therefore main time lock unit 21 can be set to wait state, when surpass preset times this moment of wait timeout, disconnect and being connected of the time lock unit of fault, it is synchronous to be converted to three machines, can accelerate ATP system response speed to greatest extent, improves the availability of ATP system.
(4) time lock of computing machine behind trouble-shooting of fault in the ATP system: if one from time lock unit 22 or the system computer fault from 22 places, time lock unit, then the system computer from 22 places, time lock unit of fault is restarted, be adjusted into the time synchronous from time lock unit 22 with main time lock unit 21 with the system computer of trouble-shooting after restarting.For in the ATP system computer of et out of order or the computing machine from time lock unit 22, can adopt and restart computer method reparation fault automatically, in the computing machine after restarting can be synchronous from time lock unit 22 with 21 deadlines of main time lock unit, realize inserting automatically the synchronizing time point of normal operation, again realize four machine time lock, further improved the availability of ATP system.
This specific embodiment adopts the hardware deadline synchronous, make the use of application layer become simpler, when multimachine was synchronous, main time lock unit just often sent sync break to ATP system applies layer by self judging the correctness of synchrodata synchronously when the time.Since the independence of time synchronizing method, and be provided with multiple verification mode, make that the safety of time lock and reliability are higher, and finish synchronously that its synchronization accuracy can reach the us level by hardware interrupts.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (5)
1. the clock synchronization system of equipment is carried in a row car controlling, it is characterized in that, comprising:
Main time lock unit is arranged in the computing machine of ATP system, and two ends connect one respectively from the time lock unit, is used to bonded assembly that the time standard of adjusting time lock is provided from the time lock unit;
A plurality of from the time lock unit, be arranged in the computing machine of ATP system, two ends connect respectively one from the time lock unit or an end connect main time lock unit one end and connect one from the time lock unit, be used for local zone time is adjusted into time with main time lock units synchronization.
2. clock synchronization system according to claim 1 is characterized in that, described main time lock unit also comprises:
Be used for after bonded assembly is adjusted into from the time lock unit time with main time lock units synchronization through predetermined wait time.
3. clock synchronization system according to claim 1 is characterized in that, described main time lock unit also comprises:
Be used for being adjusted into time with main time lock units synchronization from the time lock unit at one or more preset times bonded assembly of naming a person for a particular job.
4. clock synchronization system according to claim 1 is characterized in that, described main time lock unit also comprises:
Be used for if one from time lock cell failure or a system computer fault from place, time lock unit, then main time lock unit disconnects being connected from the time lock unit with fault after through predetermined wait time.
5. clock synchronization system according to claim 1 is characterized in that, described main time lock unit also comprises:
Be used for if one from the time lock unit or a system computer fault from place, time lock unit, then the system computer from place, time lock unit of fault is restarted, after restarting with time with main time lock units synchronization of being adjusted into from the time lock unit of the system computer of trouble-shooting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010200469717U CN201592724U (en) | 2010-01-20 | 2010-01-20 | Time synchronous system of train control vehicular device |
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| CN2010200469717U CN201592724U (en) | 2010-01-20 | 2010-01-20 | Time synchronous system of train control vehicular device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103532A (en) * | 2011-01-26 | 2011-06-22 | 中国铁道科学研究院通信信号研究所 | Safety redundancy computer system of train control vehicle-mounted equipment |
| CN102156669A (en) * | 2011-01-26 | 2011-08-17 | 中国铁道科学研究院通信信号研究所 | Arbitration system of vehicle-mounted train control equipment |
| CN104332075A (en) * | 2014-10-09 | 2015-02-04 | 北京交通大学 | Train control semi-physical simulation training system based on B/S framework and method thereof |
| CN105388751A (en) * | 2015-11-26 | 2016-03-09 | 株洲南车时代电气股份有限公司 | Method and system used for preventing clock jump in motor train unit |
| CN106254549A (en) * | 2016-09-30 | 2016-12-21 | 株洲中车时代电气股份有限公司 | Method and system based on onboard system each to the subway time service of vehicle-mounted information service net |
| CN109249964A (en) * | 2018-09-14 | 2019-01-22 | 北京全路通信信号研究设计院集团有限公司 | A kind of clock system based on Centralized Dispatching System |
| CN109367586A (en) * | 2018-10-19 | 2019-02-22 | 卡斯柯信号有限公司 | A kind of city rail traffic signal system clock system and method |
| CN109842603A (en) * | 2017-11-29 | 2019-06-04 | 北京通号国铁城市轨道技术有限公司 | A kind of method for synchronizing time and device |
-
2010
- 2010-01-20 CN CN2010200469717U patent/CN201592724U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103532A (en) * | 2011-01-26 | 2011-06-22 | 中国铁道科学研究院通信信号研究所 | Safety redundancy computer system of train control vehicle-mounted equipment |
| CN102156669A (en) * | 2011-01-26 | 2011-08-17 | 中国铁道科学研究院通信信号研究所 | Arbitration system of vehicle-mounted train control equipment |
| CN102103532B (en) * | 2011-01-26 | 2013-08-14 | 中国铁道科学研究院通信信号研究所 | Safety redundancy computer system of train control vehicle-mounted equipment |
| CN102156669B (en) * | 2011-01-26 | 2013-10-30 | 中国铁道科学研究院通信信号研究所 | Arbitration system of vehicle-mounted train control equipment |
| CN104332075A (en) * | 2014-10-09 | 2015-02-04 | 北京交通大学 | Train control semi-physical simulation training system based on B/S framework and method thereof |
| CN105388751A (en) * | 2015-11-26 | 2016-03-09 | 株洲南车时代电气股份有限公司 | Method and system used for preventing clock jump in motor train unit |
| CN106254549A (en) * | 2016-09-30 | 2016-12-21 | 株洲中车时代电气股份有限公司 | Method and system based on onboard system each to the subway time service of vehicle-mounted information service net |
| CN109842603A (en) * | 2017-11-29 | 2019-06-04 | 北京通号国铁城市轨道技术有限公司 | A kind of method for synchronizing time and device |
| CN109249964A (en) * | 2018-09-14 | 2019-01-22 | 北京全路通信信号研究设计院集团有限公司 | A kind of clock system based on Centralized Dispatching System |
| CN109367586A (en) * | 2018-10-19 | 2019-02-22 | 卡斯柯信号有限公司 | A kind of city rail traffic signal system clock system and method |
| CN109367586B (en) * | 2018-10-19 | 2023-10-17 | 卡斯柯信号有限公司 | Clock synchronization system and method for urban rail transit signal system |
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