CN105181360A - Method for determining train fault by display terminal - Google Patents
Method for determining train fault by display terminal Download PDFInfo
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- CN105181360A CN105181360A CN201510528967.1A CN201510528967A CN105181360A CN 105181360 A CN105181360 A CN 105181360A CN 201510528967 A CN201510528967 A CN 201510528967A CN 105181360 A CN105181360 A CN 105181360A
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Abstract
The invention provides a method for determining a train fault by a display terminal. The method comprises: a display terminal receives fault data sent by all sub systems of a train by a bus within each scanning period; the display terminal carries out corresponding comparison on all fault data of the scanning period and all fault data of the last scanning period to obtain changing fault data; and according to the changing fault data and a set fault code table, the display terminal determines and displays fault situations of all sub systems of the train. According to the invention, when a fault occurs at a controller, the display terminal can determine and display the train fault situation normally.
Description
Technical field
The present invention relates to train fault process field, be specifically related to the method that display terminal judges train fault.
Background technology
In railcar operational process, the fault that cab display terminal needs the current subsystems of display in real time to exist, current solution is the data on controller data acquisition bus, display terminal is sent to show after having judged, and display terminal is only used for doing Presentation Function, this method is when controller is normal, the correctness of breakdown judge can be ensured, but this way exists and breaks down once controller, display terminal just normally cannot show fault thus operating personnel can not learn the problem of failure condition.
Summary of the invention
For defect of the prior art, the invention provides the method that display terminal judges train fault, thus when controller failure, display terminal normally can judge and show train failure condition.
The invention provides a kind of method that display terminal judges train fault, comprising:
Within each scan period, display terminal receives the fault data of train subsystems transmission from bus;
Whole fault data of this scan period is carried out corresponding comparison with whole fault datas of upper scan cycle by display terminal, obtains the fault data changed;
Display terminal, according to the failure code table of the fault data of described change and setting, is determined and shows the failure condition of the subsystems of described train.
Preferably, described fault data is Boolean type data, whole fault data of this scan period and whole fault datas of upper scan cycle carry out corresponding comparison comprising whole fault data of this scan period and whole fault datas of upper scan cycle are corresponding carries out XOR by display terminal, if occur 1 in certain operation result obtained, namely show that corresponding fault changes.
Preferably, also comprise:
Display terminal is provided with the real time fail container storing current failure situation, when certain failure vanishes, then deleting the record of this fault at this real time fail container, when newly there is certain fault, then in this real time fail container, increasing the record of this fault;
Described display terminal shows failure loggings all in this real time fail container in real time.
Preferably, also comprise:
Described display terminal is also provided with the historical failure container storing historical failure situation, when there is certain fault, stores the record of this fault in described historical failure container;
Described display terminal also shows the failure logging in described historical failure container in real time.
Preferably, also comprise:
Every the schedule time, the failure logging stored in described historical failure container is written in two historical failure files respectively.
Preferably, when display terminal powers on, compare the size of two historical failure files, large historical failure file is written to historical failure container.
Preferably, described bus is MVB.
Preferably, after Preset Time, scanning is performed again when display terminal powers on.
Preferably, described Preset Time is more than or equal to all subsystems of train from power on to the time needed for normal operation.
The present invention directly gathers fault data by display terminal in bus, and by comparing this cycle and upper cycle fault data, obtain failure condition in a straightforward manner, do not need special controller process and forward fault data, overcome once controller breaks down, the problem that display terminal just cannot normally show, reaches and utilizes display terminal to carry out train fault judgement and the object shown.
Accompanying drawing explanation
Fig. 1 judges the method for train fault for display terminal that the embodiment of the present invention one provides;
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment one
This embodiment offers a kind of method that display terminal judges train fault, as shown in Figure 1, the method comprises:
Step 101: within each scan period, display terminal receives the fault data of train subsystems transmission from bus;
Step 102: whole fault data of this scan period is carried out corresponding comparison with whole fault datas of upper scan cycle by display terminal, obtains the fault data changed;
Step 103: display terminal, according to the failure code table of the fault data of described change and setting, is determined and shows the failure condition of the subsystems of described train.
Lower mask body sets forth said method.
Display terminal of the present invention is generally the display terminal of train operator room, and display terminal can complete data and store, processes and Presentation Function.After display terminal powers on, read failure code table, whole fault data of last scan period and historical failure file.
After Preset Time, perform step 101, namely within each scan period, display terminal receives the fault data of train subsystems transmission from bus.
Arranging Preset Time is that subsystem in order to wait for train starts, and avoids after subsystem is not activated, carry out scanning and obtains misdata.Therefore, Preset Time is more than or equal to all subsystems of train from power on to the time needed for normal operation.
Bus is generally MVB (multifunctional vehicle) bus, and display terminal is connected in MVB.The subsystem of train is all connected to MVB, timed sending fault data, sends the cycle corresponding with the scan period that display terminal receives fault data.Fault data is preferably Boolean type data, and such as 0 represents non-fault, and 1 representing fault occurs.
Then perform step 102: whole fault data of this scan period is carried out corresponding comparison with whole fault datas of upper scan cycle by display terminal, obtain the fault data changed.
When fault data is preferably Boolean type data, above-mentioned steps is whole fault data of this scan period and whole fault datas of upper scan cycle are corresponding carries out XOR, if occur 1 in certain operation result obtained, namely show that corresponding fault changes, or failure vanishes, or fault occurs.
Finally perform step 103: display terminal, according to the fault data of change and the failure code table of setting, is determined and shows the failure condition of the subsystems of train.
If the operation result of this cycle and certain fault data corresponding to upper cycle is 1, then find the fault data in this cycle, be such as 0 and failure vanishes is described, be 1 and illustrate that fault occurs, then in the failure code table of setting, corresponding fault is found, determine by the fault of these all changes, then just can determine the failure condition of subsystems, and show in display terminal.After this cycle completes, using the fault data all this cycle as fault data of upper cycle corresponding to next cycle, then perform lower scan cycle.
The embodiment of the present invention directly gathers fault data by display terminal in bus, and by comparing this cycle and upper cycle fault data, obtain failure condition in a straightforward manner, do not need special controller process and forwarding data, overcome once controller breaks down, the problem that display terminal just cannot normally show, reaches and utilizes display terminal to carry out train fault judgement and the object shown.
Further, the method can also comprise: display terminal is provided with the real time fail container storing current failure situation, when certain failure vanishes, the record of this fault is then deleted at this real time fail container, when newly there is certain fault, then in this real time fail container, increase the record of this fault; Display terminal shows failure loggings all in this real time fail container in real time.That is, as long as the fault of current existence, all be stored in real time fail container, once newly break down, then can increase this failure logging in real time fail container, if fault hour, then in real time fail container, delete this failure logging, thus display terminal can correctly show current failure logging.In the present invention, container refers to a slice continuous print storage area predetermined in internal memory.
In addition, the method can also comprise: display terminal is also provided with the historical failure container storing historical failure situation, when there is certain fault, stores the record of this fault in historical failure container.Display terminal also shows the failure logging in described historical failure container in real time.In historical failure container, store the record of this fault, the content of this fault can be stored, time of occurrence and die-out time.Display terminal shows current failure logging and historical failure record simultaneously, such as, in the zones of different of the screen of display terminal and/or show with different colours.When fault is more, can roll display.The carrying out that historical failure record can intercept in the nearly section time shows, such as, can show the historical failure within 6 hours.
Further, every the schedule time, be written to by the failure logging stored in historical failure container in two historical failure files respectively, the schedule time is such as 5 seconds, guarantees have the content of a file to be complete when display terminal power-off like this.Compare the size of two historical failure files next time time display terminal powers on, large historical failure file is written to historical failure container.
Method of the present invention can be realized by hardware, software, firmware and their combination, and the present invention does not limit this.Train can be railcar, high ferro vehicle, ordinary train etc.
Except as otherwise noted, the technical term that uses of the disclosure or scientific terminology should be the ordinary meaning that those skilled in the art of the invention understand." to comprise " or the similar word such as " comprising " means to occur that element before this word or object contain the element or object that appear at this word presented hereinafter and equivalent, and do not get rid of other elements or object.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme, it all should be encompassed in the middle of the scope of claim of the present invention and instructions.
Claims (9)
1. display terminal judges a method for train fault, it is characterized in that, comprising:
Within each scan period, the fault data that the subsystems that display terminal receives train from bus sends;
Whole fault data of this scan period is carried out corresponding comparison with whole fault datas of upper scan cycle by display terminal, obtains the fault data changed;
Display terminal, according to the failure code table of the fault data of described change and setting, is determined and shows the failure condition of the subsystems of described train.
2. a kind of display terminal according to claim 1 judges the method for train fault, it is characterized in that, described fault data is Boolean type data, whole fault data of this scan period and whole fault datas of upper scan cycle carry out corresponding comparison comprising whole fault data of this scan period and whole fault datas of upper scan cycle are corresponding carries out XOR by display terminal, if occur 1 in certain operation result obtained, namely show that corresponding fault changes.
3. display terminal according to claim 1 judges the method for train fault, it is characterized in that, also comprises:
Display terminal is provided with the real time fail container storing current failure situation, when certain failure vanishes, then deleting the record of this fault at this real time fail container, when newly there is certain fault, then in this real time fail container, increasing the record of this fault;
Described display terminal shows failure loggings all in this real time fail container in real time.
4. display terminal according to claim 1 judges the method for train fault, it is characterized in that, also comprises:
Described display terminal is also provided with the historical failure container storing historical failure situation, when there is certain fault, stores the record of this fault in described historical failure container;
Described display terminal also shows the failure logging in described historical failure container in real time.
5. display terminal according to claim 4 judges the method for train fault, it is characterized in that, also comprises:
Every the schedule time, the failure logging stored in described historical failure container is written in two historical failure files respectively.
6. display terminal according to claim 5 judges the method for train fault, it is characterized in that, compares the size of two historical failure files when display terminal powers on, and large historical failure file is written to historical failure container.
7. judge the method for train fault according to the display terminal of claim 1-6 according to any one of it, it is characterized in that, described bus is MVB.
8. judge the method for train fault according to the display terminal of claim 1-6 according to any one of it, it is characterized in that, when display terminal powers on, after Preset Time, perform scanning again.
9. judge the method for train fault according to the display terminal of claim 1-6 according to any one of it, it is characterized in that, described Preset Time is more than or equal to all subsystems of train from power on to the time needed for normal operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510528967.1A CN105181360A (en) | 2015-08-25 | 2015-08-25 | Method for determining train fault by display terminal |
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| CN201510528967.1A CN105181360A (en) | 2015-08-25 | 2015-08-25 | Method for determining train fault by display terminal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107631890A (en) * | 2017-10-16 | 2018-01-26 | 中国铁道科学研究院 | EMUs index analysis method and system |
| CN108729490A (en) * | 2018-06-07 | 2018-11-02 | 徐州徐工挖掘机械有限公司 | A method of being suitable for excavator fault diagnosis and CAN bus is sent |
| CN111429606A (en) * | 2020-04-13 | 2020-07-17 | 中车株洲电力机车有限公司 | Method and system for fault diagnosis, storage and display by using train display screen |
| CN112319550A (en) * | 2020-10-30 | 2021-02-05 | 中车青岛四方机车车辆股份有限公司 | Fault diagnosis method, system and device based on train initial power-on and train |
| CN114185331A (en) * | 2022-02-17 | 2022-03-15 | 潍柴雷沃重工股份有限公司 | Fault information display method, device, system, equipment, medium and tractor |
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Address after: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Shandong city of Qingdao province Jinhong road 266111 No. 88 Applicant before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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Application publication date: 20151223 |