CN100395676C - Vehicle carried data collecting system based on embedded PC - Google Patents
Vehicle carried data collecting system based on embedded PC Download PDFInfo
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- CN100395676C CN100395676C CNB2006100008047A CN200610000804A CN100395676C CN 100395676 C CN100395676 C CN 100395676C CN B2006100008047 A CNB2006100008047 A CN B2006100008047A CN 200610000804 A CN200610000804 A CN 200610000804A CN 100395676 C CN100395676 C CN 100395676C
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Abstract
The present invention relates to a vehicle-carried data collection system based on an embedded PC, which belongs to the technical field of vehicle-carried data collection. The present invention discloses a vehicle-carried data collection system with reliable hardware and overall functions by aiming at the problems existing in the existing systems. The data collection system comprises an embedded PC provided with an XPE operating system, a double-port seclusion type CAN interface card inserted in a PC104 extension interface of the embedded PC, a multi-serial-port card inserted in the PC104 extension interface of the embedded PC, a field bus data collection module, a GPS receiver, a liquid crystal screen, a touch screen and a U disk. The data collection system can realize automotive data collection, interface display and data storage.
Description
Technical field
The present invention relates to a kind of vehicle carried data collecting system that is applied to automotive field based on built-in PC.
Background technology
Vehicle carried data collecting system is used for collection of automotive development process and record car load service data, so that analyze and improve design.Adopt the automobile of new type power system at present,, just becoming the focus of research and development such as hybrid vehicle and fuel cell car.The characteristics of these new automobiles are to have more parts and controller, adopt the bus communication structure, have more operational factor.It is complicated more that the power system of new automobile becomes, and needs on stream more sensor is installed, and adopts more testing tool that car load is tested.Therefore vehicle carried data collecting system need have more powerful data acquisition ability and equipment interface ability, has characteristics such as volume is little, good reliability, man-machine interface close friend simultaneously.
Existing onboard system, as patent of invention " based on virtual and combination automobile instrument and vehicle-mounted multifunctional information platform digital technology " (patent No. CN1618647A, open date 2005.05.25), adopts the data collecting card of PC and pci bus, adopt WINDOWS2000 operating system.Ordinary PC is bulky, and power consumption height, hard disk are easy to damage under vehicle-mounted vibration environment, and the pci bus data acquisition is stuck in and is easy to produce loosening under the vehicle-mounted vibration environment and causes data acquisition to be interrupted.WINDOWS2000 is long start-up time in addition, does not support hard shutdown.This structure is difficult to guarantee long-time reliability service under vehicle environment.
Another vehicle-mounted monitoring system, as patent of invention " a kind of entire fuel battery car controller monitoring system " (patent No. CN200410088818.X based on the CAN bus, open date 2005.04.13), adopt the pcmcia interface of notebook to be connected with the CAN network, adopt Matlab software platform exploitation monitoring software with the CAN card.The supervisory system of this structure can't fixedly mount onboard, and the anti-interference and the shock resistance of notebook are relatively poor, are not suitable for vehicle-mounted use, and the Matlab software platform is used for control and emulation field more in addition, and development data collection and supervisory system have significant limitation.
Another vehicle-mounted monitoring system as patent of invention " vehicle-mounted monitoring system of a kind of haulage vehicle and goods information and method for supervising " (patent No. CN1677414A, open date 2005.10.05), adopts the PCM5820 mainboard, adopts the exploitation down of WINCE environment.This structure is suitable for vehicle-mounted use based on embedded hardware and software platform.But because the WINCE system is limited to the support of data acquisition hardware, system is difficult to carry out the function expansion.Other sensing data can't be gathered by this system, can't expand more multiple communication interface, is difficult to realize the data acquisition request of sophisticated functions.Software development debugging inconvenience under the WINCE environment in addition, the construction cycle is long, is difficult to development interface close friend's application software.
Summary of the invention
The objective of the invention is the problem that exists at existing system, exploitation hardware is reliable, complete function, man-machine interface close friend's automobile mounted data acquisition system (DAS).
Technical scheme of the present invention is as follows:
Vehicle carried data collecting system based on built-in PC of the present invention comprises:
Built-in PC;
Be inserted in the twoport isolated form CAN interface card of the PC104 expansion interface of described built-in PC, described twoport isolated form CAN interface card also is connected with car load CAN bus, is used to gather the automobile CAN-bus data;
Be inserted in the multi-serial-port card of the PC104 expansion interface of described built-in PC;
Liquid crystal display and touch-screen are connected on the VGA interface and RS232 interface of built-in PC by signal cable respectively;
The CF card of XPE operating system is housed, and described CF card is inserted in the CF card slot of built-in PC;
Be connected to two USB flash disks on the USB interface of built-in PC by USB cable respectively, described two USB flash disks are used for the stores synchronized data, to guarantee the reliability of data recording;
The field bus data acquisition module comprises analogue collection module, temperature collect module, switch acquisition module and pulsed quantity acquisition module, connects by the RS485 bus between the described various acquisition modules, and is connected on the RS485 interface of built-in PC;
The GPS receiver is used to gather vehicle speed signal, is connected to by signal cable on the RS232 interface of multi-serial-port card.
The automobile mounted data acquisition system (DAS) of the present invention's exploitation has the following advantages and effect:
1) built-in PC compact conformation, CF card and USB flash disk storage mode and do not have fan structure and can be adapted to vehicle-mounted vibrations and interference environment.The PC104 bus structure are embedded type bus of a kind of small-sized, nesting structural embedded control of optimization, adopt PC104 bus expansion interface to have good shock resistance, and plug in construction can carry out the function expansion easily.
2) select embedded OS XPE for use, have the characteristic that starts the hard shutdown of fast support, be more suitable for vehicle-mounted use.XPE and WindowsXP compatibility have abundant software and hardware resources support in addition, have improved the development efficiency of system.
3) adopt field bus data acquisition module pick-up transducers data, have analog quantity, temperature, switching value and pulsed quantity acquisition channel.Can connect 256 acquisition modules at most by the RS485 bus, can expand easily.
4) CAN bus data, gps data and sensing data can be gathered by system, and remaining 3 RS232 interfaces can also be connected with miscellaneous equipment, and the system data acquisition function is comprehensive.
5) adopt double-H groove weld disk storage data, redundancy structure has guaranteed reliability of data storage.
6) application software adopts virtual instrument development platform LabVIEW exploitation, has multiple display interface.Make software have higher reliability and friendly man-machine interface based on virtual instrument technique.
Description of drawings
Fig. 1 is the structured flowchart of an embodiment of vehicle carried data collecting system of the present invention.
Fig. 2 is the process flow diagram of vehicle carried data collecting system application software of the present invention.
Embodiment
Further specify the present invention below in conjunction with drawings and Examples.
Fig. 1 has shown an embodiment of the vehicle carried data collecting system based on built-in PC of the present invention, in Fig. 1, described system comprises: built-in PC, twoport isolated form CAN interface card, multi-serial-port card, liquid crystal display, touch-screen, the CF card of XPE operating system is housed, two USB flash disks, field bus data acquisition module and GPS receiver.Adopt the application software of virtual instrument development platform LabVIEW exploitation, be installed on the CF card.In addition, the vehicle carried data collecting system based on built-in PC of the present invention also has expanded function, can be connected on the RS232 interface of multi-serial-port card by signal cable as miscellaneous equipment.
It is the built-in PC that the super low-power consumption of PCM9372 does not have fan work that described built-in PC can adopt model, and system configuration is: VIA Eden400 CPU, 256 MB of memory, 512M CF card, 1 RS485 interface, 1 RS232 interface, 2 USB interface have PC104 bus expansion interface.This built-in PC is a kind of technical grade product of batch process, the low and dependable performance of price.
Twoport isolated form CAN interface card PCM3680 is inserted in the PC104 expansion interface of PCM9372, is used to gather car load CAN bus data.Multi-serial-port card PCM3641 is inserted in the PC104 expansion interface of PCM9372, is used to gather the data of gps data and other serial equipment.The PC104 bus adopts stack bus structure and double pin control plug in construction, has improved the reliability of system.CAN interface card PCM3680 and multi-serial-port card PCM3641 are the technical grade integrated circuit boards of producing in batches, have passed through strict Electromagnetic Interference Test and reliability testing, the low and stable performance of price.
The VGA interface output signal of PCM9372 is connected on the liquid crystal display, is used to show man-machine interface.Touch-screen carries the RS232 interface with the plate of PCM9372 and is connected, and is used to receive user's operation.
Two USB flash disks are connected on two USB interface of PCM9372 by USB cable respectively, are used for the storage of data.USB flash disk adopts the FLASH flash chip, has good shock resistance, and has the big low-cost characteristics of memory capacity, is fit to very much vehicle-mounted use.When two USB flash disks all connect, can the synchronous recording data, form a kind of redundancy backup structure, guarantee some important test occasions record data reliably.
The parameter that need gather during automobilism comprises signals such as temperature, pressure, flow, voltage, electric current, the speed of a motor vehicle, rotating speed, these conversion of signals can be become analog quantity, switching value and the pulsed quantity signal of standard by corresponding sensor.Adopt the field bus data acquisition module can gather these data.Native system adopts analogue collection module I-7017, temperature collect module I-7015, switch acquisition module I-7050 and pulsed quantity acquisition module I-7080, gathers various sensing datas.These modules are technical grade product of producing in batches, have good reliability.Can link together by the RS485 bus between each module, and be connected with the RS485 interface of PCM9372.Only need connect new module on the RS485 bus when needing the expansion acquisition channel and get final product, system adopts two 16 system number addressings, can expand to 256 modules on the bus at most, and 6 to 8 acquisition channels of each module, overall channel number can reach more than 1,000.
GPS receiver model is DH2000e, is connected with multi-serial-port card PCM3641 by the RS232 interface, is mainly used in to gather the speed of a motor vehicle and position signalling.PCM3641 also has other 3 RS232 interfaces, is used to connect other testing apparatus, such as being used to power analyzer of analyzing motor in electric automobile output power and efficient etc.
Adopt the XPE embedded OS, be installed on the CF card, be inserted in the CF card slot of PCM9372.XPE is a kind of embedded OS, and biggest advantage is and the WindowsXP compatibility to support hard shutdown simultaneously.Because the driver that various data acquisition interface cards of selling on the market and communication interface card all provide WindowsXP, avoided developing voluntarily hardware drive program like this, guaranteed the reliability of bottom software, guaranteed that simultaneously the function expansion of system is unrestricted.
Application software adopts virtual instrument development platform LabVIEW exploitation, has realized functions such as data acquisition, data storage and interface operation.Software flow pattern as shown in Figure 2, at first RS485 interface, RS232 interface, CAN interface card PCM3680 and the multi-serial-port card PCM3641 to PCM9372 carries out initialization; Parallel acquisition CAN bus data, field bus data acquisition module data, gps data and miscellaneous equipment data then; The data of the gathering pattern with numeral and curve is presented on the liquid crystal display; If connected USB flash disk on the USB interface, then the pattern of data with text stored on the USB flash disk; The user can be switched display interface by touch-screen.LabVIEW is the virtual instrument development platform that NI company releases, and adopts graphical programming language, and 3-D display control and abundant I/O interface routine are provided.Adopt virtual instrument development platform to improve software development efficiency, and guaranteed the reliability of software.
Operation shows that system hardware is reliable to the vehicle carried data collecting system that the present invention proposes through real vehicle, and complete function has friendly man-machine interface, has reached design object.
Claims (1)
1. based on the vehicle carried data collecting system of built-in PC, it is characterized in that described vehicle carried data collecting system comprises:
Built-in PC;
Be inserted in the twoport isolated form CAN interface card of the PC104 expansion interface of described built-in PC, described twoport isolated form CAN interface card also is connected with car load CAN bus, is used to gather the automobile CAN-bus data;
Be inserted in the multi-serial-port card of the PC104 expansion interface of described built-in PC;
Liquid crystal display and touch-screen are connected on the VGA interface and RS232 interface of built-in PC by signal cable respectively;
The CF card of XPE operating system is housed, and described CF card is inserted in the CF card slot of built-in PC;
Be connected to two USB flash disks on the USB interface of built-in PC by USB cable respectively, described two USB flash disks are used for the stores synchronized data, to guarantee the reliability of data recording;
The field bus data acquisition module comprises analogue collection module, temperature collect module, switch acquisition module and pulsed quantity acquisition module, connects by the RS485 bus between the described various acquisition modules, and is connected on the RS485 interface of built-in PC;
The GPS receiver is used to gather vehicle speed signal, is connected to by signal cable on the RS232 interface of multi-serial-port card.
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| CNB2006100008047A CN100395676C (en) | 2006-01-13 | 2006-01-13 | Vehicle carried data collecting system based on embedded PC |
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| CNB2006100008047A CN100395676C (en) | 2006-01-13 | 2006-01-13 | Vehicle carried data collecting system based on embedded PC |
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| CN100395676C true CN100395676C (en) | 2008-06-18 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691111B (en) * | 2009-09-30 | 2011-07-27 | 重庆安运科技有限公司 | Embedded vehicle-mounted multifunctional information platform |
| CN201549004U (en) * | 2009-11-24 | 2010-08-11 | 中国北车股份有限公司大连电力牵引研发中心 | Vehicle data recording device |
| CN101885312A (en) * | 2010-07-06 | 2010-11-17 | 中山大学 | Electric automobile whole-control system |
| CN102411399B (en) * | 2011-07-28 | 2014-02-26 | 济南腾越电子有限公司 | Research and development platform for PC104/PC104+ universality testing equipment |
| CN102801946A (en) * | 2012-08-29 | 2012-11-28 | 青岛海信网络科技股份有限公司 | High-reliability vehicle-mounted video storage device and video storage method |
| CN104852950A (en) * | 2014-10-17 | 2015-08-19 | 北汽福田汽车股份有限公司 | Synchronous acquisition system, method and vehicle of hybrid vehicle economic parameters |
| CN104615387B (en) * | 2015-03-10 | 2018-03-16 | 株洲南车时代电气股份有限公司 | Mobile unit and its design method based on XPE systems |
| CN106053983A (en) * | 2016-05-30 | 2016-10-26 | 苏州全威电子科技有限公司 | Automobile component testing machine and testing method thereof |
| CN111624930A (en) * | 2020-06-17 | 2020-09-04 | 湖南光亚腾信互联科技有限公司 | Vehicle-mounted multi-channel data acquisition system |
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| KR20040043766A (en) * | 2002-11-20 | 2004-05-27 | 주식회사 위드원시스템 | Portable embedded personal server |
| CN1474242A (en) * | 2003-05-22 | 2004-02-11 | 北京博创兴业科技有限公司 | Engineering machinery monitor |
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Address after: 215200, Suzhou 2358, Changan Road, Wujiang District, Jiangsu 6, Wujiang science and Technology Pioneer Park, 2 floors Patentee after: SUZHOU AUTOMOBILE RESEARCH INSTITUTE, TSINGHUA UNIVERSITY (WUJIANG) Patentee after: Tsinghua University Address before: 215134, Suzhou 2358, Changan Road, Wujiang District, Jiangsu 6, Wujiang science and Technology Pioneer Park, 2 floors Patentee before: SUZHOU AUTOMOBILE RESEARCH INSTITUTE, TSINGHUA UNIVERSITY (WUJIANG) Patentee before: Tsinghua University |