CN101819416A - Method for collecting, detecting and monitoring data of high-speed trains - Google Patents
Method for collecting, detecting and monitoring data of high-speed trains Download PDFInfo
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Abstract
The invention provides a method for collecting, detecting and monitoring data of high-speed trains, comprising the following steps of: collecting the data of the high-speed trains by using a PDA (Personal Digital Assistant) palmtop through a WLAN (Wireless Local Area Network) wireless module on the palmtop, then transmitting data to a wireless mobile network by using the PDA palmtop through a 3G wireless module integrated on the palmtop, sending the data to a data center by using the mobile network through the Internet, and then analyzing the data in any positions by using a client through the Internet, wherein the data center and the client form a B/S structure. The invention provides a real-time and safe data connection and monitoring method so that the in-time collection and monitoring of the data can be repaired and maintained in time. And the method for collecting, detecting and monitoring the data of the high-speed trains makes the happening probability of accidents in a controllable range.
Description
Technical field
The invention belongs to high-speed transit transportation real-time Data Transmission technical field, particularly relate to a kind of high-speed trains data acquisition, detection, method for supervising.
Background technology
Bullet train is not only the increase of speed, and is technical omnibearing raising.Concerning control, monitoring and diagnosis, not only on performance, and higher requirement is being arranged aspect reliability, availability, maintainability and the security.
(1) reliability is meant that certain project can carry out the probability of the function that requires in given condition and given interval, generally represents with mean free error time R.UV.Usually also have bigger gap between the R.UV in the R.UV value of Theoretical Calculation and actual the use, have only each product that enough reliabilities are arranged, could guarantee that bullet train normally moves.
(2) availability was meant in a period of time or certain time interval of regulation, supposed that all external resources all can meet the demands, and product is in the ratio of the time of the state that can finish the function that requires.Availability was represented the ratio of line time for the national games with the actual available time.
(3) maintainability be meant to certain product that uses under the stable condition in the stipulated time, under rated condition, finish the probability of upkeep operation effectively with regulated procedure and resource.Maintainable with the identification failure judgement and return to the average required time of normal condition and the convenience of maintenance is represented, so that can in the gap of operation arrangement, finish maintenance.
(4) security is meant the danger that does not have non-permission to damage.Bullet train is having higher requirement aspect operation monitoring and the malfunction monitoring diagnosis, the spacing distance between necessary strict control two trains, and running part must have effective monitoring, diagnosing measure, and the major accident of car crash then just may take place.The serious grade of harm that frequency that security will take place according to fault and fault cause is carried out risk assessment, and each product must reach acceptable risk class.
Reliability: the mean free error time was at least 10000h before generation once influenced and moves the fault that maybe need rescue.
Availability: use 21h every day, more than year accumulative total traveling 400,000 km.
Maintainable: part replacement is easy, and difficult parts (as framework) guarantee 35 years serviceable life, and the parts of influence safety can be implemented nondestructive inspection (NDI).
Security: brake system failure or locking wheel to the time, must notify the driver at once and show fault type and the position.
The Beijing-Shanghai high speed of China is estimated every day and is moved 20h, moves three one way, day operation 4000km in one day between Beijing to Shanghai, annual accumulative total was moved 1,200,000 km, advanced storehouse 4h every day by calculating in 25 days in every month, require ordinary maintenance and part replacement about 2h, to finish, just unlikelyly influence car.Increase along with vehicle, it requires the maintenance time will be shorter, realization is to the real-time monitoring of the data of bullet train and collection automatically, improve the robotization and the accuracy of image data, shortening is to the maintenance and the maintenance time of car, the monitoring and the control that make train just can advance data to it in operational process are exercised with the safety of guaranteeing train, increase work efficiency and convenience.
Summary of the invention
Technical matters to be solved by this invention provides a kind of data acquisition and method for supervising of actual time safety, the timely collection of data and monitoring just can overhaul and safeguard timely, make the probability that accident takes place be controlled at controlled range interior high-speed trains data acquisition, detection, method for supervising.
In order to achieve the above object, the present invention proposes a kind of high-speed trains data acquisition, detection, method for supervising, comprise the data set control plate on the bullet train, a WLAN wireless module, PDA palm machine, the 2nd WLAN wireless module and 3G wireless module on the PDA palm machine, data center server, client, the Internet network of B/S framework, the 3G mobile network, described method comprises the following steps:
(1) sends the equipment link order by PDA palm machine by the WLAN wireless module of the 2nd WLAN wireless module on its machine on bullet train;
(2) the data set control plate on bullet train sends the order of various data acquisitions to the WLAN wireless module on the bullet train by serial ports or USB interface again;
(3) after the data set control plate of bullet train obtains order, after converting the heat transfer agent AD of each passage to digital signal respectively, and be defeated by in the WLAN wireless module on the bullet train by serial ports or USB oral instructions, then data are carried out the Turbo coding and data wireless is transferred in the 2nd WLAN wireless module in the PDA palm machine by the WLAN wireless module on the car;
(4) PDA palm machine sends data by its integrated 3G wireless module to the 3G mobile network more in real time;
(5) the 3G mobile network passes to data center server by the Internet network;
(6) data center server is deciphered the data of passing back and is reduced into information data with error correction and deposits in the corresponding database, client is by the Internet network of the B/S framework of composition, anywhere the real time data of train is monitored and inquired about, and the data of paying close attention to are analyzed and handled.
Further, described PDA palm machine comprises that the ARM9 flush bonding processor is as cpu chip.
Further, a described WLAN wireless module and the 2nd WLAN wireless module are made up of Wi-Fi module and correcting data error coding/decoding system two parts.
The invention provides a kind of data acquisition and method for supervising of actual time safety, the timely collection of data and monitoring just can overhaul and safeguard timely, make the probability that accident takes place be controlled at controlled range interior high-speed trains data acquisition, detection, method for supervising.
Description of drawings
Figure 1 shows that high-speed trains data acquisition, detection, the method for supervising schematic diagram of preferred embodiment of the present invention.
Embodiment
In order more to understand technology contents of the present invention, especially exemplified by specific embodiment and cooperate appended graphic being described as follows.
Please refer to Fig. 1, Figure 1 shows that high-speed trains data acquisition, detection, the method for supervising schematic diagram of preferred embodiment of the present invention.The present invention proposes a kind of high-speed trains data acquisition, detection, method for supervising, comprise the data set control plate on the bullet train 100, the one WLAN wireless module, PDA palm machine 200, the 2nd WLAN wireless module and 3G wireless module on the PDA palm machine 200, data center server 300, client 400, the Internet network 500 of B/S framework, 3G mobile network 600, described method comprises the following steps:
(1) sends the equipment link order by PDA palm machine 200 by the WLAN wireless module of the 2nd WLAN wireless module on its machine on bullet train 100; A plurality of PDA palm machines 200 correspond respectively to a plurality of bullet trains 100, and for example PDA1 is corresponding to bullet train 1, and PDA2 is corresponding to bullet train 2 ... PDAN is corresponding to bullet train N.
(2) the data set control plate on bullet train 100 sends the order of various data acquisitions to the WLAN wireless module on the bullet train 100 by serial ports or USB interface again;
(3) after the data set control plate of bullet train 100 obtains order, after converting the heat transfer agent AD of each passage to digital signal respectively, and be defeated by in the WLAN wireless module on the bullet train 100 by serial ports or USB oral instructions, then data are carried out the Turbo coding and data wireless is transferred in the 2nd WLAN wireless module in the PDA palm machine 200 by the WLAN wireless module on the car;
(4) PDA palm machine 200 sends data by its integrated 3G wireless module to 3G mobile network 600 more in real time;
(5) 3G mobile network 600 passes to data center server 300 by Internet network 500; 3G mobile network 600 is connected with Internet network 500 by the VPN passage.
(6) 300 pairs of data of passing back of data center server are deciphered and are reduced into information data with error correction and deposit in the corresponding database, client 400 is by the Internet network 500 of the B/S framework of composition, anywhere the real time data of train is monitored and inquired about, and the data of paying close attention to are analyzed and handle, for example customer end A is handled in the fixed location, and customer end B can be mobile the processing.
Further, described PDA palm machine 200 comprises the ARM9 flush bonding processor as cpu chip, adds that the 2nd WALN wireless module and 3G wireless module form its core.
Further, a described WLAN wireless module and the employed WLAN wireless module of the 2nd WLAN wireless module are the most popular technology of the current wireless domain of Wi-Fi (WLAN (wireless local area network)) conduct, are applied in all trades and professions.It uses the communication of TCP standard, and technology maturation is reliable, and transfer rate is fast, and it is made up of Wi-Fi module and correcting data error coding/decoding system two parts.
In order to guarantee the wireless data transmission quality, adapt to the train of running at high speed, we adopt the turbo coding transmission, to adapt to the needs of high-speed radio transmission.Wireless communication system must provide two-forty, high-quality, real-time multimedia service for the user, yet wireless channel, particularly mobile radio channel is typical random time-varying channel, it all exists the diffusion of randomness in time domain, frequency field and space angular domain, these diffusions will cause received signal to produce serious fade-out in corresponding frequency field, time domain and spatial domain, and decline will seriously worsen the transmission reliability of wireless communication system and reduce spectrum efficiency., reliable wireless transmission efficient in order to realize, two kinds of means are necessary: utilize various diversity to anti-fading, utilize chnnel coding to realize Error Control.Frequency diversity, time diversity, space diversity are main diversity means, make full use of these deversity schemes and transform fading channel as approximate awgn channel as much as possible, utilize chnnel coding to carry out EDC error detection and correction then.General channel decoding scheme, the service quality (QoS) that is difficult in radio communication to reach with lower signal to noise ratio (S/N ratio) data service (for example generally requires bit error rate BER≤10
-6), even the channel coding schemes of RS sign indicating number that adopts usually in the former mobile radio system and convolutional code serially concatenated also has big gap.
The Turbo code of broad sense is meant the coding and decoding scheme that adopts cascade or product coding method and utilize interative encode method now.Repeatedly the basic thought of decoding be decoding step with the length of one complexity be decomposed into a plurality of simple relatively iterative decoding steps and also between the iterative decoding step transfer of informational probability or the transmission of soft information guarantee almost not have information loss.
Because time delay is little for the deep space communication influence, therefore long interleaver can use in order to the Turbo code in the deep space communication, thereby can bring the bigger gain that interweaves, especially for the serially concatenated CTC, but also can adopt a plurality of scrambler cascades to constitute the very powerful Turbo code of error correcting capabilities.In a sense, Turbo code is best suited for being used in the deep space communication.
In the moving communication system of current high quick-action, use very extensive, for data in the process that guarantees wireless transmission 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 Turbo, the design and the realization of software algorithm of decoding, and to the automatic recovery capability of misdata.
On bullet train, carry out in real-time data acquisition and the monitoring, the main interference of being disturbed that high-tension electricity magnetic interference 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, having improved the ability of anti-bursty interference of data and random disturbance, is 10 at channel bit error rate
-3The time, can obtain the actual bit error rate 10
-5-10
-6
The real-time data acquisition of bullet train, detection, monitor system software adopt the B/S structure, can remote upgrade and maintenance, and it is accurate and timely that the data of analysis are wanted.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.
In sum, the present invention relates to high-speed trains data acquisition, detection, method for supervising, this method has two kinds of functions, and its a kind of comprising the following steps: is sent the equipment link order by PDA palm machine by the WLAN transmitter module of wireless WLAN transmitter module (802.11.a) on bullet train on its machine; At this moment the data set control plate on bullet train sends the order of various data acquisitions to the WLAN module on the bullet train by serial ports or USB interface again; After the data set control plate of bullet train obtains order, respectively the heat transfer agent AD of each passage is converted to digital signal and be defeated by the WLAN module on the bullet train and data wireless be transferred in the WLAN module in the PDA palm machine by WLAN module on the car by serial ports or USB oral instructions; After WLAN module in the palm machine reaches image data on the PDA machine; PDA sends data by 3G wireless module integrated in the palm machine to mobile radio network more in real time, and the mobile network passes to data center by the Internet net; What data center and client were formed is the B/S framework, and client can be carried out application to the analysis of data anywhere by the Internet net.Its two kinds of functions are PDA palm machine directly to be contained on the bullet train with data set control plate on the bullet train be connected; Data center can be by the B/S network client anywhere by send the monitor command request to data center; At this moment data center can be sent by the PDA palm machine of Internet net on the bullet train that is connected operation and connect the machine instruction, after connection PDA machine ON TRAINS obtains connecting the machine instruction, sends the instruction of real-time data acquisition and transmission to data set control plate; After the data set control plate of bullet train obtains instruction, converting the sensor information AD of each passage to digital signal is connected to Internet by PDA machine on the car by the 3G mobile network again and data is passed to data center on the net, at this moment set up information transfer channel by the B/S network between data center and the client, train operation state can be monitored and check to client just in real time, to reach purpose, the probability that accident takes place is controlled in the controlled range to the real-time monitoring of bullet train.
Though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (3)
1. a high-speed trains data acquisition, detection, method for supervising, comprise the data set control plate on the bullet train, the one WLAN wireless module, PDA palm machine, the 2nd WLAN wireless module and 3G wireless module on the PDA palm machine, data center server, client, the Internet network of B/S framework, the 3G mobile network is characterized in that: described method comprises the following steps:
(1) sends the equipment link order by PDA palm machine by the WLAN wireless module of the 2nd WLAN wireless module on its machine on bullet train;
(2) the data set control plate on bullet train sends the order of various data acquisitions to the WLAN wireless module on the bullet train by serial ports or USB interface again;
(3) after the data set control plate of bullet train obtains order, after converting the heat transfer agent AD of each passage to digital signal respectively, and be defeated by in the WLAN wireless module on the bullet train by serial ports or USB oral instructions, then data are carried out the Turbo coding and data wireless is transferred in the 2nd WLAN wireless module in the PDA palm machine by the WLAN wireless module on the car;
(4) PDA palm machine sends data by its integrated 3G wireless module to the 3G mobile network more in real time;
(5) the 3G mobile network passes to data center server by the Internet network;
(6) data center server is deciphered the data of passing back and is reduced into information data with error correction and deposits in the corresponding database, client is by the Internet network of the B/S framework of composition, anywhere the real time data of train is monitored and inquired about, and the data of paying close attention to are analyzed and handled.
2. a kind of high-speed trains data acquisition according to claim 1, detection, method for supervising is characterized in that: described PDA palm machine comprises that the ARM9 flush bonding processor is as cpu chip.
3. a kind of high-speed trains data acquisition according to claim 1, detection, method for supervising is characterized in that: a described WLAN wireless module and the 2nd WLAN wireless module are made up of Wi-Fi module and correcting data error coding/decoding system two parts.
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| 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 |
| CN104309613A (en) * | 2014-09-26 | 2015-01-28 | 鞍山市海汇自动化有限公司 | Locomotive information acquiring and monitoring system based on 3G platform |
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| CN104714538A (en) * | 2015-01-21 | 2015-06-17 | 中国铁路总公司 | Intelligent trouble diagnostic device and diagnostic method for railway signal system |
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| 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 |
| CN115955370A (en) * | 2023-03-01 | 2023-04-11 | 北京全路通信信号研究设计院集团有限公司 | Train control data center management system and method |
| CN115955370B (en) * | 2023-03-01 | 2023-06-30 | 北京全路通信信号研究设计院集团有限公司 | Train control data center management system and method |
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Owner name: SUZHOU DEMAC ELECTRIC CO., LTD. Free format text: FORMER OWNER: SHANGHAI WITJOINT AUTOMATION CO., LTD. Effective date: 20140402 Owner name: SHANGHAI DEMAI ELECTRICAL + CONTROL ENGINEER CO., Free format text: FORMER OWNER: SHANGHAI WITJOINT ELECTRIC CONTROL ENGINEERING CO., LTD. WANG LENGXIN Effective date: 20140402 |
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Effective date of registration: 20140402 Address after: 200233 Shanghai Xuhui District Gumei Road No. 1515 Phoenix Building 24 floor Applicant after: Suzhou Demac Electric Co., Ltd. Applicant after: Shanghai Demai Electrical Control Engineering Co. Ltd. Applicant after: Witjoint Electrical Technology (Shanghai) Co., Ltd. Applicant after: Witjoint Electrical Technology (Shanghai) Co., Ltd. Applicant after: Wang Lengxin Address before: Shanghai City 200233 Tianzhou Road No. 99 new Mao Building seven West Applicant before: Shanghai WitJoint Automation Co., Ltd. Applicant before: Shanghai Huiqiao Electrical Control Engineering Co., Ltd. Applicant before: Wang Lengxin |
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Address after: 200233 Shanghai Xuhui District Gumei Road No. 1515 Phoenix Building 24 floor Applicant after: Suzhou Demac Electric Co., Ltd. Applicant after: Shanghai De Maike electrical control Engineering Co., Ltd Applicant after: Witjoint Electrical Technology (Shanghai) Co., Ltd. Applicant after: Witjoint Electrical Technology (Shanghai) Co., Ltd. Applicant after: Wang Lengxin Address before: 200233 Shanghai Xuhui District Gumei Road No. 1515 Phoenix Building 24 floor Applicant before: Suzhou Demac Electric Co., Ltd. Applicant before: Shanghai Demai Electrical Control Engineering Co. Ltd. Applicant before: Witjoint Electrical Technology (Shanghai) Co., Ltd. Applicant before: Witjoint Electrical Technology (Shanghai) Co., Ltd. Applicant before: Wang Lengxin |
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Application publication date: 20100901 |