CN101602370A - Failure data acquisition and automatic error correction method for fast railway train - Google Patents
Failure data acquisition and automatic error correction method for fast railway train Download PDFInfo
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- CN101602370A CN101602370A CNA2009100500459A CN200910050045A CN101602370A CN 101602370 A CN101602370 A CN 101602370A CN A2009100500459 A CNA2009100500459 A CN A2009100500459A CN 200910050045 A CN200910050045 A CN 200910050045A CN 101602370 A CN101602370 A CN 101602370A
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Abstract
The present invention relates to a kind of failure data acquisition and automatic error correction method for fast railway train, comprise the following steps: to send acquisition by the wireless transceiver in train of the wireless transceiver in the garage by the wireless middle-end acquisition PC machine in the garage; After wireless transceiver on the train is received order, the fault data in the train is collected in the wireless transceiver on the car by serial ports, then the data of handling well are sent; After wireless transceiver in the garage receives data, be reduced into correct data after, and it is sent in the wireless middle-end acquisition PC machine in garage by exchange; Wireless middle-end acquisition PC machine is exported the result by background server, and data and result be sent in the background server back up.The present invention not only makes personnel's the reducing of labour intensity, and the more important thing is that the accident that it has got rid of randomness and eventuality takes place, and is controlled in the controlled range probability that accident takes place.
Description
Technical field
The invention belongs to the track traffic technical field, particularly relate to a kind of failure data acquisition and automatic error correction method for fast railway train.
Background technology
Rail transit train has a lot of equipment in operational process be that real-time online is monitored and stored, it comprises central stage process handling equipment, traction control equipment, subordinate inverter, the mechanical braking control convenience, air conditioning appliance equipment etc., when these equipment et out of order in operational process, fault data will be gathered and be stored in the memory device of collecting device, at present owing to these fault datas on main track can not in time be sent to service personnel, cause a lot of train faults in time not judged and to handle, often cause train to move in spite of illness, brought serious hidden danger for the safe operation of train.
Behind the As-Is train Hui Ku, the fault data of all control units all will be by manually gathering and data centralization storage, and then by manually the fault file being analyzed and handled, just can carry out fault handling at last.Artificial fault collection mode is implemented so far, has no longer adapted to the produced on-site practice of present subway train, particularly at the more circuit of train, below we have enumerated the problem that some artificial fault collection mode exposes in production practice work:
(1) there are problems such as labour intensity is big, work-hours is long in artificial fault collection.With a line is example, have 45 trains at present, every train is 8 joint marshallings, every joint car on average has 5 collection points, the fault collection time average of each collection point is about 30 seconds, and the fault collection work of a train needs about 20 minutes altogether, like this fault collection time of all trains need 45*20=900 minute altogether=15 hours, that is to say that if carry out failure data acquisition the fault collection work of finishing whole trains needs about five hours altogether by three skilled labors.
(2) artificial fault collection has greatly had influence on fault handling efficient and fault data quality.Because problems such as labour intensity is big, acquisition time is long that artificial fault collection exists, this has just caused, and we can not accomplish fast and be efficient on the mode of fault handling, simultaneously because full manual operations very likely causes fault data mistake and fault data to lose owing to human element.
(3) the present collecting device that adopts of artificial fault collection mode is a portable computer, because fault collection point is many, heat is dialled slotting frequency of utilization height, the data acquisition interface that very likely causes computing machine damages, cause computing machine to be repaiied, thereby had influence on fault collection, analysis and judgment task owing to can't image data sending.
The analysis of subway accident and processing are a complexity, empirical very strong technical work, the reason that subway has an accident is a lot, fault cause is discerned in requirement fast, efficiently and accurately and the timely subway that recovers of adopting an effective measure normally moves, and this still is the work of a worth in-depth study.In recent years, in safe and scientific field computer technology with engineering technology broad incorporation such as safety management, safety evaluation, risk analysis prediction, and promoted the process of safe and scientific development.Utilize computing machine accurately to reach high-speed science computing function and carry out tasks such as safety analysis, accident diagnosis, security decision.At present, subway has generally been installed computer supervisory control system, but the effect to condition monitoring is not fully exerted, need the fault handling on a backstage and analysis system and realize processing pilot signal, fully realize Intellectualized monitoring to system, improve the degree of utilization of whole monitoring system, realize timely processing to pilot signal, will solve the problem of failure data acquisition radio communication, research, develop of the application of wireless automatic fault data acquisition system in track traffic, realization is to the automatic collection of the fault data of train, realize that at first train advances the ability of carrying out fault data wireless collection and analysis automatically behind the storehouse, improve the automation and the accuracy of image data, shortening is to the maintenance and the maintenance time of car, and progressively can realize the data acquisition of station-station failure and communicate by letter, and makes train just can carry out the monitoring and the collection of operating troubles to it in operational process, exercise with the safety of guaranteeing train, increase work efficiency and convenience.
Summary of the invention
The labour intensity that technical matters to be solved by this invention provides a kind of personnel of making reduces, and the accident of getting rid of randomness and eventuality takes place, and makes the probability that accident takes place be controlled at the interior failure data acquisition and automatic error correction method for fast railway train of controlled range.
The technical solution adopted for the present invention to solve the technical problems is: a kind of failure data acquisition and automatic error correction method for fast railway train is provided, comprise the wireless transceiver on the subway train, wireless-transmission network, wireless transceiver in the garage, cable LAN in the garage, exchange, wireless middle-end acquisition PC machine and background server in the garage, described method comprises the following steps:
(1) sends acquisition by the wireless middle-end acquisition PC machine in the garage by the wireless transceiver in train of the wireless transceiver in the garage;
(2) after the wireless transceiver on the train is received order, fault data in the train is collected in the wireless transceiver on the car by serial ports, after wireless transceiver on the car is obtained data, data are carried out IP addressing and RS coding and the computing of convolutional interleave coding, then the data of handling well are sent;
(3) after the wireless transceiver in the garage receives data, data are at first carried out CRC check, separate again and hand over long-pending computing, and then carry out the RS decoding and error, be reduced into correct data after, and it is sent in the wireless middle-end acquisition PC machine in garage by exchange;
(4) the analysis expert data of wireless middle-end acquisition PC machine by background server are analyzed the data of gathering, and simultaneously with result's output, and data and result be sent in the background server back up.
Described transceiver is a Half-duplex transceiver, can carry out any to the bright real-time Transmission of the full impregnated of multiple spot, and it is made up of radio receiving transmitting module and correcting data error coding/decoding system two parts.
Beneficial effect
The present invention changes automation " collection fault data " to artificial " collection fault data " into, not only makes personnel's the reducing of labour intensity, and the more important thing is that the accident that it has got rid of randomness and eventuality takes place, and is controlled in the controlled range probability that accident takes place.
Description of drawings
Fig. 1 principle of the invention scheme drawing.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, the present invention includes the wireless transceiver on the subway train, wireless-transmission network, wireless transceiver in the garage, the cable LAN in the garage, exchange, wireless middle-end acquisition PC machine and background server in the garage, described method comprises the following steps:
(1) sends acquisition by the wireless middle-end acquisition PC machine in the garage by the wireless transceiver in train of the wireless transceiver in the garage;
(2) after the wireless transceiver on the train is received order, fault data in the train is collected in the wireless transceiver on the car by serial ports, after wireless transceiver on the car is obtained data, data are carried out IP addressing and RS coding and the computing of convolutional interleave coding, then the data of handling well are sent;
(3) after the wireless transceiver in the garage receives data, data are at first carried out CRC check, separate again and hand over long-pending computing, and then carry out the RS decoding and error, be reduced into correct data after, and it is sent in the wireless middle-end acquisition PC machine in garage by exchange;
(4) the analysis expert data of wireless middle-end acquisition PC machine by background server are analyzed the data of gathering, and simultaneously with result's output, and data and result be sent in the background server back up.
Described transceiver is a Half-duplex transceiver, can carry out any to the bright real-time Transmission of the full impregnated of multiple spot, and it is made up of radio receiving transmitting module and correcting data error coding/decoding system two parts.
In order to guarantee the wireless data transmission quality, we adopt forward error correction coding (FEC) to improve the reliability of wireless data transmission, Reed-Solomon (RS) sign indicating number is a kind of important error correcting code, it has extremely strong error correcting capability to randomness and unexpected error, in current communication system, use very extensive, for data in the process that guarantees transmission over radio are not lost, mess code not, verification is requisite in the misidentify error code, but we are in gatherer process, also to accomplish not only the data that can verification make mistake, and want and to correct a mistake, wrong data are resumed, real assurance data are correct, misdata recovered automatically to guarantee the transmission quality of data, and be one of our main investigative technique, here main research is the coding of RS, the design of decoding scheme and realization, and to the automatic restorability of misdata.
In order to guarantee the transmission security of data, this device is finished following function: 1. the data of pair collection are carried out RS coding and are promptly inserted 3. pairs of RS coded datas of heading code that redundant correcting sign indicating number 2. inserts IP+ID and carry out convolution and hand over and know coding, improve the data of anti-4. pairs of receptions of wrong ability and carry out deinterleaving and RS decoding and error.
Carry out the RS coding when the data that serial ports is read in and handle generation RS verification error correcting code, and carry out the convolutional interleave computing, receptor at first carries out outside the CRC check receive data from projector after, carry out deinterleaving and RS decoding error correction and recover just truly having data, arrive the correctness that receives with the data transmission that will guarantee serial ports thereafter and to the data of error code.
On subway train, carry out in the failure data acquisition, the main interference of being disturbed that high-tension current magnetic disturbance and radio band are arranged, we can adopt the way of avoiding frequency range to select to adopt efficient forward error correction channel technology for the interference of wireless frequency range, improved the ability of anti-bursty interference of data and randol noise, when channel bit error rate is 10-3, can obtain actual bit error ratio 10-5-10-6
We will do experiment on the chip of CPU selecting for the high-tension current magnetic disturbance, select to have at a high speed, wide to the power line voltage range of use, the program that can effectively prevent is walked to fly, and the CPU of high anti-interfering performance is arranged, and here we have selected the AVR series monolithic that resettable startup resets.
AVR series has internal power switch enabling counting device, low level can be resetted (/RESET) directly receive Vcc to hold.When power supply is opened,, can postpone MCU and start executive routine owing to utilize the WatchDog Timer of inner RC.This time-delay makes the stable back of I/O mouth executive routine, to improve the micro controller system functional reliability.The AVR micro controller system that has also has the resetting voltage regulatory function selective, is applicable to that micro controller system uses the occasion of different electrical power voltage.WatchDog Timer (WDT) is arranged, safety guard-safeguard, the program of preventing is walked unrest (flying), has carried the antijamming capability of high product.
The failure data analyzing system software will adopt the B/S structure, and program will be made modular mode, can remote upgrade and maintenance, and the data of analysis are accurate.Client can directly adopt the browser mode, can with function different modules be installed according to authority, accomplishes duty, power separately, and management is clear and definite.
Application ON TRAINS also can realize for wireless data transmission technology, at first considers problems such as interference on the train and transmission distance.We adopt the FSK mode of frequency regulation to claim frequency-shift keying again, note by abridging to be FSK, and it is a kind of modulation system that carrier frequency changes with digital signal.Being 2FSK again to the modulation of binary digit/bit transmission is exactly the frequency (frequency-shift keying) of removing modulated carrier with digital signal, since it have method simple, be easy to advantages such as realization, antinoise and anti fading performance are stronger, therefore in low, the medium speed data transmission of modern digital communication systems, obtained widespread use.
Device id+identification of IP multichannel and multiplexed port technology
The every circuit-switched data bag of multi-channel data acquisition prefix adds " device id+IP identification ", sixteen bit ID has fully reserved the address space of expansion, guarantee the address uniqueness, in data transmission, adopt cyclic redundancy check (CRC) (being called for short CRC), to guarantee the correct and safety of data, CRC is the very high and simple serial data method of calibration of implementation of a kind of reliability, has obtained widespread use in communication and computer data storage.
The multiplexing transceiver of multichannel serial can discern and gather respectively data such as TCU, CCU, BCU automatically by software.
The present invention can accomplish to discern respectively in the tested train, car data and data center is preserved, analyzed and pass to image data, and the running state of wireless device is detected and warning automatically.
The local area network of having formed data acquisition by the wireless transceiver in the garage, each transceiver has a fixedly IP, be concentrated in the 20 four-hole exchangees, data pass in the apps server, apps server is connected with data center by router, and the Maintenance Engineer can access the failure analysis data of train by outer net.
Claims (2)
1. failure data acquisition and automatic error correction method for fast railway train, comprise the wireless transceiver on the subway train, wireless-transmission network, wireless transceiver in the garage, cable LAN in the garage, exchange, wireless middle-end acquisition PC machine and background server in the garage, it is characterized in that: described method comprises the following steps:
(1) sends acquisition by the wireless middle-end acquisition PC machine in the garage by the wireless transceiver in train of the wireless transceiver in the garage;
(2) after the wireless transceiver on the train is received order, fault data in the train is collected in the wireless transceiver on the car by serial ports, after wireless transceiver on the car is obtained data, data are carried out IP addressing and RS coding and the computing of convolutional interleave coding, then the data of handling well are sent;
(3) after the wireless transceiver in the garage receives data, data are at first carried out CRC check, separate again and hand over long-pending computing, and then carry out the RS decoding and error, be reduced into correct data after, and it is sent in the wireless middle-end acquisition PC machine in garage by exchange;
(4) the analysis expert data of wireless middle-end acquisition PC machine by background server are analyzed the data of gathering, and simultaneously with result's output, and data and result be sent in the background server back up.
2. a kind of failure data acquisition and automatic error correction method for fast railway train according to claim 1, it is characterized in that: described transceiver is a Half-duplex transceiver, can carry out any to the bright real-time Transmission of the full impregnated of multiple spot, it is made up of radio receiving transmitting module and correcting data error coding/decoding system two parts.
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| CN101819416A (en) * | 2010-03-19 | 2010-09-01 | 上海慧桥电气自动化有限公司 | Method for collecting, detecting and monitoring data of high-speed trains |
| CN101846999A (en) * | 2010-04-09 | 2010-09-29 | 中国铁道科学研究院基础设施检测研究所 | Monitoring method of high speed comprehensive detection train detection equipment and device and system thereof |
| CN101930230A (en) * | 2010-08-18 | 2010-12-29 | 南京康尼机电股份有限公司 | System for remote fault positioning and maintenance of subway shield door |
| CN102196040A (en) * | 2010-03-12 | 2011-09-21 | 通用汽车环球科技运作有限责任公司 | Vehicle connectivity system, method, and application |
| US20110280301A1 (en) * | 2006-12-20 | 2011-11-17 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
| CN103036649A (en) * | 2012-12-17 | 2013-04-10 | 上海应用技术学院 | High-speed train based fault early warning information heterogeneous reuse wireless transmission method |
| CN105955114A (en) * | 2014-01-24 | 2016-09-21 | 浙江众合科技股份有限公司 | Safe input system based on dynamic pulse verification |
| CN106444584A (en) * | 2016-11-10 | 2017-02-22 | 中车青岛四方机车车辆股份有限公司 | Monitoring system for rail vehicle |
| CN106781348A (en) * | 2015-11-24 | 2017-05-31 | 中车大连电力牵引研发中心有限公司 | Data collecting system |
| CN109150404A (en) * | 2018-06-21 | 2019-01-04 | 友达光电股份有限公司 | Data patching system, method and data patching device thereof |
| CN110658395A (en) * | 2019-07-08 | 2020-01-07 | 南京铁道职业技术学院 | Subway train traction inverter test system and method |
| CN111674428A (en) * | 2020-06-05 | 2020-09-18 | 中车青岛四方车辆研究所有限公司 | Train brake control unit Ethernet joint debugging system and joint debugging method |
| CN113840001A (en) * | 2021-09-23 | 2021-12-24 | 中车株洲电力机车有限公司 | Fault data processing method under MVB network, communication system and rail transit vehicle |
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| US20110280301A1 (en) * | 2006-12-20 | 2011-11-17 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
| US8396051B2 (en) * | 2006-12-20 | 2013-03-12 | Lg Electronics Inc. | Digital broadcasting system and method of processing data |
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| US9333833B2 (en) | 2010-03-12 | 2016-05-10 | Gm Global Techology Operations Llc | Vehicle connectivity systems, methods, and applications |
| US9132715B2 (en) | 2010-03-12 | 2015-09-15 | GM Global Technology Operations LLC | Vehicle connectivity systems, methods and applications |
| US9227483B2 (en) | 2010-03-12 | 2016-01-05 | GM Global Technology Operations LLC | Vehicle connectivity systems, methods, and applications |
| CN101819416A (en) * | 2010-03-19 | 2010-09-01 | 上海慧桥电气自动化有限公司 | Method for collecting, detecting and monitoring data of high-speed trains |
| CN101846999A (en) * | 2010-04-09 | 2010-09-29 | 中国铁道科学研究院基础设施检测研究所 | Monitoring method of high speed comprehensive detection train detection equipment and device and system thereof |
| CN101930230A (en) * | 2010-08-18 | 2010-12-29 | 南京康尼机电股份有限公司 | System for remote fault positioning and maintenance of subway shield door |
| CN101930230B (en) * | 2010-08-18 | 2012-08-22 | 南京康尼机电股份有限公司 | System for remote fault positioning and maintenance of subway shield door |
| CN103036649B (en) * | 2012-12-17 | 2016-04-27 | 上海应用技术学院 | Based on the fault pre-alarming Information heterogeneity multiplex wireless transmission method of bullet train |
| CN103036649A (en) * | 2012-12-17 | 2013-04-10 | 上海应用技术学院 | High-speed train based fault early warning information heterogeneous reuse wireless transmission method |
| CN105955114A (en) * | 2014-01-24 | 2016-09-21 | 浙江众合科技股份有限公司 | Safe input system based on dynamic pulse verification |
| CN105955114B (en) * | 2014-01-24 | 2018-08-28 | 浙江众合科技股份有限公司 | Safe input system based on dynamic pulse verification |
| CN106781348A (en) * | 2015-11-24 | 2017-05-31 | 中车大连电力牵引研发中心有限公司 | Data collecting system |
| CN106444584A (en) * | 2016-11-10 | 2017-02-22 | 中车青岛四方机车车辆股份有限公司 | Monitoring system for rail vehicle |
| CN109150404A (en) * | 2018-06-21 | 2019-01-04 | 友达光电股份有限公司 | Data patching system, method and data patching device thereof |
| CN109150404B (en) * | 2018-06-21 | 2021-11-16 | 友达光电股份有限公司 | Data patching system, method and data patching device thereof |
| CN110658395A (en) * | 2019-07-08 | 2020-01-07 | 南京铁道职业技术学院 | Subway train traction inverter test system and method |
| CN111674428A (en) * | 2020-06-05 | 2020-09-18 | 中车青岛四方车辆研究所有限公司 | Train brake control unit Ethernet joint debugging system and joint debugging method |
| CN113840001A (en) * | 2021-09-23 | 2021-12-24 | 中车株洲电力机车有限公司 | Fault data processing method under MVB network, communication system and rail transit vehicle |
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Application publication date: 20091216 |