CN102730029A - Vehicle-mounted monitoring device for urban rail vehicle - Google Patents
Vehicle-mounted monitoring device for urban rail vehicle Download PDFInfo
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- CN102730029A CN102730029A CN2011100915609A CN201110091560A CN102730029A CN 102730029 A CN102730029 A CN 102730029A CN 2011100915609 A CN2011100915609 A CN 2011100915609A CN 201110091560 A CN201110091560 A CN 201110091560A CN 102730029 A CN102730029 A CN 102730029A
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Abstract
The invention relates to a vehicle-mounted monitoring device for an urban rail vehicle. The vehicle-mounted monitoring device comprises a train automatic control interface and a power supply module, and further comprises a CPU (Central Processing Unit); the CPU is connected with the train automatic control interface, and is further connected with an SD (Secure Digital) card and a clock unit; and the power supply module respectively supplies power to the CPU, the CD card and the clock unit. The vehicle-mounted monitoring device provided by the invention has the beneficial effects of large data collecting amount and overall information. With the adoption of the vehicle-mounted monitoring device, information is conveniently extracted (only by taking out the SD card and obtaining relevant operation information according to files corresponding to a date and time in the SD card), so that not only the fault analyzing time is greatly reduced, and the fault processing accuracy is improved, but also the maintenance efficiency can be improved, and the quantity of trip riders is reduced. Therefore, the maintenance cost is saved.
Description
Technical field
The present invention relates to a kind of city rail vehicle vehicle-mounted monitoring device, relate in particular to the circuit module of this city rail vehicle vehicle-mounted monitoring device.
Background technology
No. two lines of Shanghai Underground are from June, 2002 ATP/ATO (ATP train automatic safety device; ATO automatic train operation system) since function comes into operation in succession; (No. 2 line west of Shanghai Underground are extended open-minded to have experienced " 4 change 2 " in succession; No. 2 lines are temporarily transferred 8 row AC05 trains), " 6 change 8 " (changing 8 joint marshallings into) and " new 8 cars " (trains of newly-increased 8 Alstoms) by 6 joint marshallings, vehicle is many, the train that comes into operation is many, it is little to run the interval.Because ATC (train automatic guidance) system introduces from U.S. USSI company, because contract and technical know-how, USSI does not provide and runs the relevant key equipment and the technical parameter of system, and operation maintenance has been caused certain difficulty.
The relevant data of present No. two line cab signal systems can only be recorded in the EEPROM of system CPU plate; Because the finite capacity of EEPROM; System only provides simple in the short time and has preserved the function of some final event recorders reports and do not have a monitoring of intermediate variable, thus device fails particularly moment occur fault the time, the foundation that makes service personnel can not find to deal with problems; Cause the fault localization difficulty, fault handling time is long.Therefore be necessary vehicle-mounted ATC relevant all key messages, particularly security information are carried out real-time dynamic data monitoring and record, and observation information commonly used is carried out the interface processing, realize the scene playback function, make failure analysis simple, vivid.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of city rail vehicle vehicle-mounted monitoring device, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
The present invention includes: train automatic guidance (ATC) interface and power module; Also comprise: CPU element; Described CPU element and train automatic guidance (ATC) interface; Described CPU element also links to each other with clock unit with the SD card; Described power module is given CPU element, SD card and clock unit power supply respectively.
Compared with prior art, the invention has the beneficial effects as follows: the image data amount is big, and information is comprehensive.Information extraction convenient (only need to take out the SD card, obtain relevant operation information) according to corresponding time on the date file among the SD; Not only shorten the failure analysis time greatly, increase the accuracy of fault handling, and can also improve maintenance efficiency, reduce patcher person, thereby practice thrift maintenance cost.
Description of drawings
Fig. 1 is a module map of the present invention.
Fig. 2 is the data processing work schematic diagram that adopts Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
Visible by Fig. 1: as to the present invention includes: train automatic guidance (ATC) interface and power module; Also comprise: CPU element; Described CPU element and train automatic guidance (ATC) interface; Described CPU element also links to each other with clock unit with the SD card; Described power module is given CPU element, SD card and clock unit power supply respectively.
Described clock unit is DS12887+.
Described CPU element is a micro controller system.
The present invention gathers corresponding data from the ATC equipment interface, is stored in then in the SD card.Record data can read through serial ports, can manual analyses, and also available Ground analysis software analysis.
The level conversion that the SD cartoon is crossed 5V～3.3V is connected with micro controller system mega128.Can carry out a large amount of high-revolving data storage.SD adopts the 2G capacity.Can store above secure data information of a week.And have file system, can extract according to respective file through PC.
In the practical application, the present invention is placed in the vehicle-mounted plate, vehicle-mounted integrated circuit board front panel has the 5V power access end, and the integrated circuit board inboard has 110V compartment machine cage power access end, and the 5V input end is also arranged, and can supply the actual vehicle situation to insert.
Vehicle-mounted integrated circuit board is provided with two serial ports and receives, and baud rate is set to 19200, the inner adm202e conversion chip that uses, reliability is high, can be in-40～85 degrees centigrade normal operation.And 15kV is arranged with interior electrostatic protection, prevent the infringement that thunder and lightning etc. brings.
Real-time time information is provided by DS12887+.DS12887+ is the clock chip that dallas, u.s.a semiconductor company releases, and adopts the COMS technology to process, and inner integrated crystal oscillator, outside lithium cell and clock circuit have advantages such as system interface function low in energy consumption, that precision is high, good and working stability be reliable.Externally have under the situation of power supply and use external power supply.When outside power down, adopt the in-to-in lithium cell to carry out work, keep clock.Inner lithium cell electric weight can supply clock operation 8～10 years.
By shown in Figure 2, accomplish by mega128 Single-chip Controlling software processes.Mainly comprise data storage and communication module in the vehicle-mounted software.Because the real-time property of gathering is had relatively high expectations,, transmission initiation command data do not send as long as will not stopping paying out with the speed of 19200 baud rates.And file system needs to seek empty sector in bunch processing, often in discontinuous empty sector, will take a few tens of milliseconds to milliseconds up to a hundred.So the communication module of serial ports has the buffer memory of 1kb,, the accident of data causes loss of data in case overflowing.Data memory module mainly is the operation to the SD card, considers that the ram of micro controller system mega128 is limited.Adopting 512 bytes is that the single sector of unit is read and write.To read while write efficient low though the speed of single sector read-write is than manying the sector, and speed relative and serial ports is then much higher, does not have the unmatched problem of speed.
Adopt the Fatfs file system in file system shown in Figure 2.This document system increases income, free file system.Modification reliability through a plurality of versions is very high.Document storage mode at the SD card adopts the folder storage with the xx-xx-xx date.In folder storage inside secure data file on the corresponding same day.File was a unit with 10 minutes.Conveniently call for upper computer Treatment Analysis program.
Circuit connecting section of the present invention is divided the electronic circuit that can adopt widespread use in the prior art, no longer provides detailed description.
The present invention has stronger reliability and practicality.Be convenient to faults analysis and in time handle.The cost of integrated circuit board is also cheap relatively and be convenient to installation, only needs to insert compartment machine cage and gets final product.It can be for a long time and the operation information of actv. record train, supplies analysis software to handle.For the reliability service of whole rail traffic vehicles provides good guarantee, improved fault handling speed greatly, have good society and economic benefit.
Claims (3)
1. a city rail vehicle vehicle-mounted monitoring device comprises: train automatic guidance interface and power module; It is characterized in that also comprising: CPU element; Described CPU element and train automatic guidance interface; Described CPU element also links to each other with clock unit with the SD card; Described power module is given CPU element, SD card and clock unit power supply respectively.
2. city rail vehicle vehicle-mounted monitoring device according to claim 1 is characterized in that: described clock unit is DS12887+.
3. city rail vehicle vehicle-mounted monitoring device according to claim 1 is characterized in that: described CPU element is a micro controller system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100915609A CN102730029A (en) | 2011-04-12 | 2011-04-12 | Vehicle-mounted monitoring device for urban rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100915609A CN102730029A (en) | 2011-04-12 | 2011-04-12 | Vehicle-mounted monitoring device for urban rail vehicle |
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| Publication Number | Publication Date |
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| CN102730029A true CN102730029A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100915609A Pending CN102730029A (en) | 2011-04-12 | 2011-04-12 | Vehicle-mounted monitoring device for urban rail vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491843A (en) * | 2003-09-22 | 2004-04-28 | 北京交大思诺科技有限公司 | General signal data recorder for cocomotive |
| KR20050081992A (en) * | 2004-02-17 | 2005-08-22 | 샬롬엔지니어링 주식회사 | A combined on-board train system for using an automatic train control, an automatic train stop and an automatic train protection |
| CN201251710Y (en) * | 2008-07-29 | 2009-06-03 | 株洲南车时代电气股份有限公司 | Signal generator for plug-in type monitoring device |
| CN101570205A (en) * | 2009-06-12 | 2009-11-04 | 上海乐开测控设备有限公司 | Device for monitoring key instructions of electric train |
| CN202013600U (en) * | 2011-04-12 | 2011-10-19 | 上海申通地铁集团有限公司 | Vehicle-mounted monitoring device for mass transit vehicles |
-
2011
- 2011-04-12 CN CN2011100915609A patent/CN102730029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1491843A (en) * | 2003-09-22 | 2004-04-28 | 北京交大思诺科技有限公司 | General signal data recorder for cocomotive |
| KR20050081992A (en) * | 2004-02-17 | 2005-08-22 | 샬롬엔지니어링 주식회사 | A combined on-board train system for using an automatic train control, an automatic train stop and an automatic train protection |
| CN201251710Y (en) * | 2008-07-29 | 2009-06-03 | 株洲南车时代电气股份有限公司 | Signal generator for plug-in type monitoring device |
| CN101570205A (en) * | 2009-06-12 | 2009-11-04 | 上海乐开测控设备有限公司 | Device for monitoring key instructions of electric train |
| CN202013600U (en) * | 2011-04-12 | 2011-10-19 | 上海申通地铁集团有限公司 | Vehicle-mounted monitoring device for mass transit vehicles |
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Application publication date: 20121017 |