CN107014626A - The bullet train dynamic stress rest real time data inspecting system transmitted based on GPRS data - Google Patents

The bullet train dynamic stress rest real time data inspecting system transmitted based on GPRS data Download PDF

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Publication number
CN107014626A
CN107014626A CN201710137126.7A CN201710137126A CN107014626A CN 107014626 A CN107014626 A CN 107014626A CN 201710137126 A CN201710137126 A CN 201710137126A CN 107014626 A CN107014626 A CN 107014626A
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China
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data
gprs
transmitted
real time
module
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CN201710137126.7A
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Inventor
咸晓雨
田寅
温博阁
曹金
唐海川
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CRRC Industry Research Institute Co Ltd
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CRRC Industry Research Institute Co Ltd
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Priority to CN201710137126.7A priority Critical patent/CN107014626A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/08Railway vehicles
    • GPHYSICS
    • G08SIGNALLING
    • G08CTRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

A kind of bullet train dynamic stress rest real time data inspecting system transmitted based on GPRS data, it includes data acquisition equipment, car-mounted computer, terminal device and GPRS data transmission unit;Wherein data acquisition equipment is used to be acquired train dynamic stress rest experimental data;Data prediction and analysis software are carried inside car-mounted computer, for pre-process obtaining parameter to be transmitted and data to the data-signal gathered;Terminal device, carries monitoring and early warning software, for data record and abnormity early warning, and generates instruction;GPRS data transmission unit, for obtained ginseng to be transmitted will to be handled in the car-mounted computer and data are sent to the terminal device, while can also send the instruction of the terminal device to the car-mounted computer.

Description

The bullet train dynamic stress rest real time data inspecting system transmitted based on GPRS data
[technical field]
The present application relates to train data Transmission system, and in particular to a kind of train composition intensity and analysis of fatigue equipment And train operating conditions monitoring and digital information processing system.
[background technology]
Countries in the world expanding economy, all be unable to do without the development of transportation.Due to climate and effect of natural conditions Big compared with small and transport capacity and bicycle useful load, railway transportation occupies some superiority in the regular and low cost of transport; Along with type of vehicle is more, it is allowed to bearing capacity greatly and is not limited by weight and volume, these Dou Shi highways and air transportation What mode can not compare, therefore railway transportation has critical role in China's socio-economic development.Railway transportation is passed through The extensive speed-raising of six times of 1997 to 2007, quality of passenger service is greatly improved, and railway transportation is in passenger traffic city The competitiveness of field is greatly enhanced, but also generates a series of problems simultaneously, and the problem of especially prominent is fatigue rupture such as carries The connection beam of fast car 209HS type bogies, suspension rod, the fatigue fracture of traction seat;Increasing Speed Passenger Car SW-160 type bogies are hung The fatigue fracture of bar, framework and Horizontal control lever;The end carriage fracture of speed-raising locomotive SS8 type bogies and speed-up railway freight turn 8AG Fatigue rupture of the crossbar system of type bogie etc., these problems, which are made once, occurs that national economy may be made to damage by huge Lose, the safety of serious threat people.
For train problem of fatigue damage, domestic expert has carried out research extensively and profoundly in this field.From last century End starts, and the country has researcher to take up to study the work of wagon load spectrum successively, with bullet train in recent years Develop rapidly, the research of bullet train key position Fatigue Damage Problem is set about carrying out again by China, establishes suitable China railways The preparation method of the loading spectrum of the train key position such as hitch, bogie, car body of line status.
When carrying out fatigue strength research and life prediction to rolling stock key position at present, the main research side used Method has following three kinds:(1) measured data method:Dynamic stress or the strain of component are obtained by actual track experimental test, with reference to mark Fixed experiment and payload lines identification, Treatment Analysis obtain required loading spectrum;Or partial component is designed as force-measuring sensing Device, can directly test the load obtained in structure.(2) estimated data's method:Operating mode is analyzed according to goal in research, set with reference to vehicle Meter experience and line conditions estimate that loading spectrum this method needs certain experience accumulation.(3) dynamics simulation method:It is logical Dynamics (such as SIMPACK, ADAMS software) emulation is crossed, the measured data with reference to obtained by correlation test obtains different linemen's Stress-time history under condition, then according to load-stress transitive relation, obtain loading spectrum.
In above-mentioned three kinds of methods, the degree of accuracy highest of measured data method.For the collection of structural stress time history, at present Obtained still through strain measurement system.By the progressively exploration and research of nearly more than ten years, for train dynamic stress rest data In the method for collection, the shaped system of complete set.Fig. 1 is traditional dynamic stress data measurin system, and it is by straining Piece, foil gauge circuit, data acquisition equipment and DAS composition.But it is due to current train operation to real-time and pacifies The lifting of full demand, increasing equipment state and its local environment condition, which needs to be acquired, to be recorded and is monitored, right The monitoring of data exception and and alarm seem most important.Current method of testing can not realize this function, be mainly manifested in:
(1) automatic acquisition equipment can store mass data in itself, due to cross-channel or train scheduling, tester Member may a few days even several weeks gathered data can not be all downloaded, in the meantime sensor occur failure will be unable to and When fed back, this will directly affect the quality of test.If the signal quality of test is undesirable, later stage research can be caused Tremendous influence;If re-starting test, time, monetary cost will increase severely.
(2) at present dynamic stress data test do not possess the function of monitoring in real time, this result in some key positions of train by In factors such as circuit, the change of service condition and losses, its military service performance changes, and aggravates its fatigue damage situation.
[content of the invention]
In view of the above-mentioned problems, be badly in need of will in train dynamic stress rest, with a kind of method come to gather signal quality with And train dynamic stress situation is monitored in real time.The present patent application is based on GPRS data transmission means, devises real time data note Record tests real time data inspecting system with processing, data exception monitoring and alarm in the train dynamic stress rest of one.The system For in train test process, being monitored to train data collecting device and train operation state, it is determined that the data of collection Quality simultaneously monitors train key position dynamic stress situation in real time, it is ensured that safe train operation.
The technical scheme of the present patent application is as follows:
The train dynamic stress rest experiment real time data inspecting system of the present patent application it is main by data acquisition equipment, it is vehicle-mounted Computer, GPRS data transmission unit and the part of terminal device four composition.Data prediction is wherein carried in car-mounted computer soft Part, for signal pre-process obtaining parameter to be transmitted;Terminal device carries monitoring and early warning software, mainly realizes data Record and abnormity early warning function.TCP data segment employs the commercial GPRS transmission net of China Mobile.The system There is network information covering wide, low communications cost, strong antijamming capability and easily programmable realize.
(1) data acquisition equipment
According to dynamic stress data acquisition feature, conventional data acquisition equipment has the equipment such as IMC, Agilent, eDAQ.
(2) car-mounted computer
Data acquisition equipment is during gathered data, time segment transmission sample data into car-mounted computer.Car Supporting data processing and inversion software in computer is carried, the relevant parameter set according to terminal device is automatically performed the pre- of data Processing, obtains corresponding monitoring parameter to be sent and sample data.
(3) GPRS data transmission unit (DTU)
ZH7000 type GPRS data transmission units (DTU) are that a utilization GSM mobile handset network sends data to remote equipment Standalone module, the DTU can be completely independent work, and the maintenance and detection of connecting link are completed by DTU itself, passes through RS232/ RS485/TTL electric level interfaces are that can be achieved to exchange data with Internet and remote equipment.DTU passes through with car-mounted computer RS232 serial ports is connected, and is kept in gsm networks online.By this transmission unit, by the parameter and data in car-mounted computer Terminal device is sent to, while also to car-mounted computer can be sent the instruction of terminal device.
(4) terminal device
Terminal device carries monitoring and early warning software, and software takes modular design method, is broadly divided into following 6 moulds Block, as shown in Figure 3.
Equipment debugging module:Various functions for testing selected GPRS module, so that it is guaranteed that program correctly can may be used Communicated by ground with module.
Data transmit-receive module:For the message sent in message queue to be sent into GPRS module by serial ports, meanwhile, will The information received is write into monitoring data storehouse.
Warning module:The module is the core of system data monitoring, and man-machine interface provides the setting of self-defined watch-list (including monitoring trigger condition, warning information etc.), while providing the systematic parameters such as detection cycle, the bad point detection number of times of monitoring Set.After monitoring function is opened, the corresponding data in monitoring data storehouse is remembered according to the condition timing set in watch-list Record table is inquired about, once data meet trigger condition, is just highlighted current alert and is recorded.
Data readback module:For warning message, the data sample in pre-warning time can be transmitted to ground monitoring center, And visualization technique is utilized, data are patterned to associative operation and the frequency-domain analysis having in display, module to waveform Etc. function, it is easy to user to judge equipment and train operation situation from many aspects;
Data processing module:Data prediction is simply handled automatically according to user's setup parameter, is used after prediction occurring Family needs to carry out data observation again with processing so as to judge equipment and train operation situation.
Monitoring data database management module:The data monitored in real time are recorded, the monitoring data that car-mounted computer is transmitted is by supervising Control the write-in of object control software or third party's data acquisition program typing.User can quickly be stored, be inquired about and data Analyze contrast operation.Alarm modules are only needed to It is no to occur abnormal and handled accordingly.
Beneficial effects of the present invention are as follows:
(1) real-time monitoring equipment operation conditions
Data acquisition equipment is typically mounted on equipment compartment under car, and the electromagnetic environment under EMUs car in equipment compartment is very multiple Miscellaneous, due to equipment itself and connection cable, equipment usually can be caused some passages to adopt by environmental disturbances such as electromagnetism Anomaly occurs for the data of collection.The present patent application by being handled data sample in real time, Monitoring Data sample characteristics letter Breath, so as to judge equipment running status, then makes corresponding measure.This function can ensure the quality of devices collect data, from And obtain correct analysis of fatigue result;Success of the test rate is improved, experiment number of repetition is reduced, reduces experimentation cost.
(2) train key position dynamic stress situation is monitored in real time
The most durations of current dynamic stress rest experiment are shorter, are more the dynamic stress experiment knots according to certain mileage Fruit calculates that bullet train runs 1,200,000 kilometers of stress level.For long-term follow test, although the time of test is longer, but It is that can not obtain the data of collection in real time in test process, it is necessary to every collection of manually getting on the bus for a period of time.Both approaches are Through obtaining theoretical and practice checking, it is widely used in current train analysis of fatigue.But it is not excluded for some keys of train Position is due to factors such as circuit, the change of service condition and losses, and its military service performance, which changes, aggravates its fatigue damage feelings Condition.So, the dynamic stress situation that this system can be more safely and reliably to train key position is monitored in real time, and is combined Current dynamic stress rest and analysis method, are able adequately determines the stress state of train, it is ensured that safe train operation.
[brief description of the drawings]
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Accompanying drawing 1 is the block diagram of traditional dynamic stress data collecting system composition;
Accompanying drawing 2 is the train dynamic stress rest real time data inspecting system transmitted based on GPRS data of the present patent application Module frame chart;
Accompanying drawing 3 is the train dynamic stress rest real time data inspecting system transmitted based on GPRS data shown in accompanying drawing 2 In the monitoring carried of terminal device and early warning software module block diagram;
Accompanying drawing 4 is that the train dynamic stress rest transmitted based on GPRS data of the present patent application shown in accompanying drawing 2 is counted in real time According to the operational flow diagram of monitoring system.
[embodiment]
The train dynamic stress rest experiment real time data inspecting system of the present patent application it is main by data acquisition equipment, it is vehicle-mounted Computer, GPRS data transmission unit and the part of terminal device four composition, as shown in Figure 2.Collocation number wherein in car-mounted computer Data preprocess software, for signal pre-process obtaining parameter to be transmitted;Terminal device carries monitoring and early warning software, main Realize data record and abnormity early warning function.TCP data segment employs the commercial GPRS transmission of China Mobile Net.The system has the advantages that network information covering wide, low communications cost, strong antijamming capability and easily programmable realized.
(1) data acquisition equipment
According to dynamic stress data acquisition feature, conventional data acquisition equipment has the equipment such as IMC, Agilent, eDAQ.
(2) car-mounted computer
Data acquisition equipment is during gathered data, time segment transmission sample data into car-mounted computer.Car Supporting data processing and inversion software in computer is carried, the relevant parameter set according to terminal device is automatically performed the pre- of data Processing, obtains corresponding monitoring parameter to be sent and sample data.
(3) GPRS data transmission unit (DTU)
ZH7000 type GPRS data transmission units (DTU) are that a utilization GSM mobile handset network sends data to remote equipment Standalone module, the DTU can be completely independent work, and the maintenance and detection of connecting link are completed by DTU itself, passes through RS232/ RS485/TTL electric level interfaces are that can be achieved to exchange data with Internet and remote equipment.DTU passes through with car-mounted computer RS232 serial ports is connected, and is kept in gsm networks online.By this transmission unit, by the parameter and data in car-mounted computer Terminal device is sent to, while also to car-mounted computer can be sent the instruction of terminal device.
(4) terminal device
Terminal device carries monitoring and early warning software, and software takes modular design method, is broadly divided into following 6 moulds Block, as shown in Figure 3.
Equipment debugging module:Various functions for testing selected GPRS module, so that it is guaranteed that program correctly can may be used Communicated by ground with module.
Data transmit-receive module:For the message sent in message queue to be sent into GPRS module by serial ports, meanwhile, will The information received is write into monitoring data storehouse.
Warning module:The module is the core of system data monitoring, and man-machine interface provides the setting of self-defined watch-list (including monitoring trigger condition, warning information etc.), while providing the systematic parameters such as detection cycle, the bad point detection number of times of monitoring Set.After monitoring function is opened, the corresponding data in monitoring data storehouse is remembered according to the condition timing set in watch-list Record table is inquired about, once data meet trigger condition, is just highlighted current alert and is recorded.
Data readback module:For warning message, the data sample in pre-warning time can be transmitted to ground monitoring center, And visualization technique is utilized, data are patterned to associative operation and the frequency-domain analysis having in display, module to waveform Etc. function, it is easy to user to judge equipment and train operation situation from many aspects;
Data processing module:Data prediction is simply handled automatically according to user's setup parameter, is used after prediction occurring Family needs to carry out data observation again with processing so as to judge equipment and train operation situation.
Monitoring data database management module:The data monitored in real time are recorded, the monitoring data that car-mounted computer is transmitted is by supervising Control the write-in of object control software or third party's data acquisition program typing.User can quickly be stored, be inquired about and data Analyze contrast operation.Alarm modules are only needed to It is no to occur abnormal and handled accordingly.
Accompanying drawing 4 is that the train dynamic stress rest of the present patent application shown in accompanying drawing 2 tests the fortune of real time data inspecting system Row flow chart.System communication module is debugged on the terminal device first and data prediction parameter setting is completed.
(1) after powered up, data acquisition equipment starts acquired data storage in the storage medium that itself is installed to system, together When at a certain time interval to car-mounted computer send sample data.
(2) software kit run on car-mounted computer goes forward side by side the data sample stored to computer progress decoding line number Data preprocess, obtains the crucial monitoring data needed in analysis of fatigue.
(3) terminal device is reached by obtained data are pre-processed by GPRS communication modules, be stored in monitoring data storehouse.
(4) early warning system is inquired about according to imposing a condition in monitor database, is reported when a triggering condition is met It is alert.User can carry out Treatment Analysis to warning message and real time data, determine equipment and train operation situation and take accordingly to arrange Apply.

Claims (14)

1. a kind of bullet train dynamic stress rest real time data inspecting system transmitted based on GPRS data, it includes data acquisition Equipment, car-mounted computer, terminal device and GPRS data transmission unit, wherein:
The data acquisition equipment is used to be acquired train dynamic stress rest experimental data;
Data prediction and analysis software are carried in the inside of the car-mounted computer, pre- for being carried out to the data-signal gathered Processing obtains parameter to be transmitted and data;
The terminal device carries monitoring and early warning software, for data record and abnormity early warning, and generates instruction;
The GPRS data transmission unit is used to that obtained ginseng to be transmitted will to be handled in the car-mounted computer and data are sent to The terminal device, while can also send the instruction of the terminal device to the car-mounted computer.
2. the bullet train dynamic stress rest real time data inspecting system according to claim 1 transmitted based on GPRS data System, wherein the data acquisition equipment includes IMC, Agilent, eDAQ.
3. the bullet train dynamic stress rest real time data inspecting according to claim 1 or 2 transmitted based on GPRS data System, wherein the data acquisition equipment is during gathered data, time segment is to the car-mounted computer transmission sample Data.
4. the bullet train dynamic stress rest real time data inspecting system according to claim 1 transmitted based on GPRS data System, wherein the relevant parameter that the car-mounted computer is set according to the terminal device, is automatically performed the pretreatment of data, obtains Corresponding monitoring parameter to be sent and sample data.
5. the bullet train dynamic stress rest real time data inspecting system according to claim 1 transmitted based on GPRS data System, wherein the terminal device includes:Equipment debugging module, data transmit-receive module, warning module, data readback module, data Processing module and monitoring data database management module.
6. the bullet train dynamic stress rest real time data inspecting system according to claim 5 transmitted based on GPRS data System, wherein the equipment debugging module is used for the various functions for testing selected GPRS module, so that it is guaranteed that program can be correct Reliably communicated with module.
7. the bullet train dynamic stress rest real time data inspecting system according to claim 5 transmitted based on GPRS data System, wherein the data transmit-receive module is used to the message sent in message queue being sent to GPRS module by serial ports, meanwhile, The information received is write into monitoring data storehouse.
8. the bullet train dynamic stress rest real time data inspecting system according to claim 5 transmitted based on GPRS data System, wherein the warning module be man-machine interface provides self-defined watch-list set simultaneously offer monitor detection cycle, The setting of bad point detection number of times;After monitoring function is opened, according to the condition timing set in watch-list to monitoring data storehouse In corresponding data record sheet inquired about, once data meet trigger condition, be just highlighted current alert and record.
9. the bullet train dynamic stress rest real time data inspecting system according to claim 5 transmitted based on GPRS data System, wherein the data readback module is directed to warning message, can transmit the data sample in pre-warning time into ground monitoring The heart, and visualization technique is utilized, data are patterned to the associative operation and frequency domain point having in display, module to waveform Function is analysed, is easy to user to judge equipment and train operation situation from many aspects.
10. the bullet train dynamic stress rest real time data inspecting system according to claim 5 transmitted based on GPRS data Data are carried out observation again with processing to judge to set by system wherein the data processing module is used for the user after prediction occurring Standby and train operation situation.
11. the bullet train dynamic stress rest real time data inspecting system according to claim 5 transmitted based on GPRS data System, wherein the monitoring data database management module is used to record the data monitored in real time, the monitoring number that car-mounted computer is transmitted According to being write by monitored object control software or third party's data acquisition program typing.
12. the bullet train dynamic stress rest real time data inspecting system according to claim 1 transmitted based on GPRS data System, wherein the GPRS data transmission unit is the standalone module that a utilization GSM mobile handset network sends data to remote equipment, Its own completes the maintenance and detection of connecting link, is that can be achieved and Internet by RS232/RS485/TTL electric level interfaces And remote equipment exchanges data, it is connected with car-mounted computer by RS232 serial ports, and is kept in gsm networks online.
13. the bullet train dynamic stress rest real time data inspecting transmitted according to claim 1 or 5 based on GPRS data System, wherein GPRS data transmission unit use the commercial GPRS transmission net of China Mobile.
14. according to being supervised based on the bullet train dynamic stress rest real time data that GPRS data is transmitted for any one of claim 1-13 The operation method of control system, comprises the following steps:
System communication module is debugged on the terminal device and data prediction parameter setting is completed;
After powered up, data acquisition equipment starts acquired data storage in the storage medium that itself is installed to system, while with one Fixed time interval sends sample data to car-mounted computer;
The software kit run on car-mounted computer will be decoded to the data sample that computer is stored and carry out data to be located in advance Reason, obtains the crucial monitoring data needed in analysis of fatigue;
Terminal device is reached by obtained data are pre-processed by GPRS communication modules, is stored in monitoring data storehouse;
Early warning system is inquired about according to imposing a condition in monitor database, is alarmed when a triggering condition is met.
CN201710137126.7A 2017-03-08 2017-03-08 The bullet train dynamic stress rest real time data inspecting system transmitted based on GPRS data Pending CN107014626A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108566402A (en) * 2017-12-28 2018-09-21 广州道本信息科技有限公司 One kind being based on mobile phone mobile terminal auxiliary system
WO2021227182A1 (en) * 2020-05-12 2021-11-18 中铁三局集团有限公司 Locomotive dynamics monitoring device of heavy-haul train

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201429413Y (en) * 2009-06-25 2010-03-24 北京交通大学 Pantograph performance on-line automatic detection system for high-speed trains
CN102139700A (en) * 2010-02-01 2011-08-03 同济大学 Vehicle working condition online monitoring system for rail transit
CN104932487A (en) * 2015-06-04 2015-09-23 北京交通大学 Subway vehicle remote diagnosis system
CN105043443A (en) * 2015-07-03 2015-11-11 大连交通大学 Vehicle body stress testing device for high speed train and work method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201429413Y (en) * 2009-06-25 2010-03-24 北京交通大学 Pantograph performance on-line automatic detection system for high-speed trains
CN102139700A (en) * 2010-02-01 2011-08-03 同济大学 Vehicle working condition online monitoring system for rail transit
CN104932487A (en) * 2015-06-04 2015-09-23 北京交通大学 Subway vehicle remote diagnosis system
CN105043443A (en) * 2015-07-03 2015-11-11 大连交通大学 Vehicle body stress testing device for high speed train and work method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
周素霞: "《高速列车空心车轴损伤容限理论与方法研究》", 31 January 2016 *
陆正刚: "《轨道车辆设计》", 31 December 2015 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108566402A (en) * 2017-12-28 2018-09-21 广州道本信息科技有限公司 One kind being based on mobile phone mobile terminal auxiliary system
WO2021227182A1 (en) * 2020-05-12 2021-11-18 中铁三局集团有限公司 Locomotive dynamics monitoring device of heavy-haul train

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Application publication date: 20170804