CN103792941A - Test data recording device - Google Patents
Test data recording device Download PDFInfo
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- CN103792941A CN103792941A CN201410055968.4A CN201410055968A CN103792941A CN 103792941 A CN103792941 A CN 103792941A CN 201410055968 A CN201410055968 A CN 201410055968A CN 103792941 A CN103792941 A CN 103792941A
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Abstract
The invention relates to a test data recording device. The test data recording device is characterized in that a master control microprocessor is respectively connected with an interface chip, a memorizer, a CAN transceiver and a real-time clock, and an upper computer interface module, a data storage module, a CAN communication module, a protocol analysis module and a timestamp module are embedded in the master control microprocessor; the upper computer interface module and the interface chip are connected through a parallel bus in a peripheral circuit of the master control microprocessor, and data connection of the device and an upper computer is built; the data storage module is connected with the memorizer through an SPI bus, and accessing of monitoring data record file and monitoring configuration file is realized; the device does not need manual intervention in the data recording process and can be powered on and off along with a test system, the data recording process is automatically started and stopped, data are automatically stored, meanwhile, external sensors do not need to be additionally arranged, new software does not need to be compiled for an ECU according to the device, the problem that the reliability test monitoring process occupies labor force and material resources is solved, and the problem that the data are hard to collect on a test system accidental fault site is solved.
Description
Technical field
The present invention relates to a kind of test figure pen recorder, is auto electronic control system (ECU) exploitation, test field, especially electronic Control for Diesel Engine unit (EECU), finished vehicle electronic control module (VECU) software development, test field.
Background technology
At present, along with the function of commercial car and passenger car is more and more enriched, emission regulation demands is more and more stricter, the application of electronic control unit (hereinafter to be referred as ECU) increases day by day, the complexity of ECU software is also more and more higher, needs more and more to verify correctness and the reliability of product design.At the ECU product development initial stage, especially ECU product still immature in, often need the developer who is familiar with in a large number this ECU software and hardware structure to follow for a long time car test, take a large amount of manpower and materials, and then affect development progress.For above-mentioned condition, domestic proposition has also realized some solutions, as patent CN201110394017.6, CN200910185444.6.But patent CN201110394017.6 lays particular emphasis on ECU fixed setting, and depend on the interactive operation of man-machine interface, cannot realize long-time continuous, unattended Test Data Collecting; Patent CN200910185444.6 lays particular emphasis on the fault diagnosis direction of ECU, depends on the failure message that entire car controller provides, and data area is narrow, and purposes is limited.
Summary of the invention
For the problem facing in prior art, the object of the present invention is to provide a kind of test figure pen recorder, this device data recording process is without manual intervention, can power on pilot system, power down, automatically start, stop data recording process, automatically save data, simultaneously again without newly-increased external sensor, ECU is also without write new software for this device, solve and monitored that fail-test process takies the problem of human and material resources, has also solved the problem of the sporadic fault in-situ data acquisition of pilot system difficulty.
Technical scheme of the present invention is achieved in that a kind of test figure pen recorder, it is characterized in that: main control microprocessor is connected with interface chip, storer, CAN transceiver, real-time clock respectively, main control microprocessor is embedded with host computer interface module, data memory module, CAN communication module, protocol analysis module, timestamp module; In the peripheral circuit of main control microprocessor, host computer interface module is connected by parallel bus with interface chip, and apparatus for establishing is connected with the data of host computer; Data memory module is connected by spi bus with storer, the access monitor data log file of implement device, monitoring configuration file function; CAN communication module 7 is connected by spi bus with CAN transceiver, and apparatus for establishing is connected with the CAN data of ECU; Timestamp module is connected by parallel bus with real-time clock, makes main control microprocessor obtain accurate system time from real-time timepiece chip; DC/DC converter provides 5V power supply for main control microprocessor and other peripheral circuits;
Protocol analysis module and CAN communication module in described main control microprocessor have message communication relation, on the one hand, CAN communication module is received the message from ECU, need to be resolved by protocol analysis module, obtain monitor data, on the other hand, configuration data is packaged as CAN message by protocol analysis module, is sent to ECU sends which monitor data and how to send these data to inform ECU by CAN communication module; Data memory module and protocol analysis module have data communications context, protocol analysis module by the monitoring data transmission from ECU to data memory module, form with monitor data file deposits storer in, and receive the configuration data of reading from storer from data memory module and be packaged as CAN message, finally send it to ECU; Protocol analysis module is also from timestamp module time of reception stamp information, and the precise time information that protocol analysis module contains the monitor data of receiving from ECU and timestamp is synthesized, and deposits in the lump storer in; Host computer interface module and data memory module have file correspondence, in the time that device connects host computer, host computer interface module receives the configuration data file from host computer, transfer to data memory module and deposit storer in, and data memory module is read monitor data file from storer, transfer to host computer interface module, finally export host computer to.
It is to be usb bus, CAN bus, universal serial bus, blue tooth interface by wireless or wired communication interface that described host computer is set up data connection.
Described storer comprises that read-only storage is FLASH chip, eeprom chip, micro hard disk, or removable memory is SD card, CF card, USB flash drive, memory stick.
Good effect of the present invention is to coordinate peripheral circuit by one or more microprocessors, with the CCP in ECU, XCP, the Data Transport Protocol stack of UDS based on CAN bus is connected, according to the monitor data list of testing crew configuration, read free position variable from the cycle in the random access memory of ECU, after adding a cover timestamp, deposit large capacity fixed memory device in, as FLASH, EEPROM, micro hard disk etc., or deposit movable memory equipment in, as SD card, CF card, memory stick, USB flash drive etc., testing crew can be regularly by this device with host computer by wireless or wired communication interface, comprise usb bus, CAN bus, universal serial bus, blue tooth interface, be connected with device, read the document data record in memory device, analyzed, data recording process is without manual intervention, can power on pilot system, power down, automatically start, stop data recording process, automatically save data, simultaneously again without newly-increased external sensor, ECU is also without writing any code for this device, reached the object of Rapid Establishment lightweight, customization, low cost, unmanned, highly reliable Test Data Acquisition System.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present invention.
Fig. 2 is test figure pen recorder and ECU and other device connection diagrams.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described:
A kind of test figure pen recorder, it is characterized in that: main control microprocessor 6 is connected with interface chip 1, storer 2, CAN transceiver 9, real-time clock 11 respectively, main control microprocessor 6 is embedded with host computer interface module 4, data memory module 5, CAN communication module 7, protocol analysis module 10, timestamp module 8; In the peripheral circuit of main control microprocessor, host computer interface module 4 is connected by parallel bus with interface chip 1, and apparatus for establishing is connected with the data of host computer; Data memory module 5 is connected by spi bus with storer 2, the access monitor data log file of implement device, monitoring configuration file function; CAN communication module 7 is connected by spi bus with CAN transceiver 9, and apparatus for establishing is connected with the CAN data of ECU; Timestamp module 8 is connected by parallel bus with real-time clock 11, makes main control microprocessor obtain accurate system time from real-time timepiece chip; DC/DC converter 3 provides 5V power supply for main control microprocessor and other peripheral circuits;
There is CAN 2.0B standard interface, use the Data Transport Protocol based on CAN bus of electronic control unit software support, comprise CCP agreement, XCP agreement or UDS agreement, between electronic control unit and this device, transmit data, it is characterized in that: can set up data by wireless or wired communication interface and host computer and be connected, can import the configuration of monitor data argument table by host computer, use one or more fixed memory device storage data, base while applying real time clock circuit as data, there is external switch signal writing function, use free voltage power supply within the scope of 9 to 35V, can Real-time Collection record the electronic control unit running state data of test vehicle or engine, realize unattended test figure record.Can import monitor data argument table configuration file by host computer, the configuration status data variable that only monitoring is concerned about, and the cycle of monitor data variable, realize the test figure record customizing.
Use fixed memory device, comprise FLASH chip, eeprom chip, micro hard disk, or movable memory equipment, SD card, CF card, USB flash drive, memory stick comprised, store electrons control module running state data.
This device has real time clock circuit, is all test figure entry rise time additional datas, realizes the precise time location of test figure.
This device has external switch signal writing function, and by the switch on operating means shell, laboratory technician can special marking current working, searches current working while facilitating data analysis.
This device can use wireless or wired communication interface, comprises usb bus, CAN bus, universal serial bus, blue tooth interface, communicates by letter with host computer, realizes the configuration of monitor data variable list, equipment energy characteristic setting, record data read functions.
Free voltage power supply within the scope of 9 to 35V can be used, passenger car and commercial car power supply environment can be adapted to.
Real-time Collection also records test vehicle or the running state data of the electronic control unit for vehicles of engine pedestal, needs the target data set gathering to be customized arbitrarily by testing crew, realizes unattended test figure record.
When use, first in host computer, list be concerned about ECU state variable list by user, and the expectation monitoring period of each state variable, inquired about again the MAP file of ECU by the host computer of matched with devices, obtain each state variable corresponding, memory address in ECU address space, above-mentioned memory address and monitoring period are write to monitoring configuration file, through interface chip 1 shown in Fig. 1, host computer interface module 4, data memory module 5, finally deposit storer 2 in; When device electrifying startup, first device reads monitoring configuration file from storer 2, after device and ECU connect successfully, monitoring configuration file is resolved to configuration data and is packaged as configuration message through protocol analysis module 10, be sent to ECU through CAN communication module 7, setting up Data Transport Protocol stack in ECU needs the data variable list that gathers, transmits, and completes monitoring configuration.
After monitoring has configured, the CAN message that comprises monitor data is sent to the communication module of CAN shown in Fig. 17 by ECU, disassemble CAN message by protocol analysis module 10, extract efficiency test data wherein, and it is combined with the precision clock reading from timestamp module 8, complete the timi requirement of data, transfer to data memory module 5 to cushion and be saved to storer 2; When device is connected with host computer, data memory module 5 is read monitor data log file from storer 2, transfers to host computer through host computer interface module 4, is finally completed the work such as analysis, conversion of data by host computer software.
Accompanying drawing 2 is connection layout of device of the present invention and ECU and other equipment, and accompanying drawing 2 is only a form of implementation of device of the present invention, does not represent the form of implementation that other are possible.
Before carrying out new data recording task, need to connect host computer, write configuration file corresponding to new task.In the embodiment described in Fig. 2, device is set up data with host computer by USB interface and is connected, host computer writes in the storer of device generating complete configuration file, completes the configuration of data recording task, after this can needn't connect host computer.
Carrying out test figure while recording, be only connected by CAN bus with ECU, the demarcation CAN bus for example including by truck OBD interface connects; Device can be shared 24V or 12V power supply with ECU, or separately connect 9V to 35V direct supply, the device that switches on power starts working, attempt setting up CAN communication connection with ECU, after successful connection, send configuration information message to ECU, after completing configuration, ECU starts to send test figure, and device receives and store these data, until ECU or device power down.In recording process, testing crew can be pressed lower device button in the time that its interested event occurs, mark current working, and this mark will be stored with current test figure simultaneously.
Device of the present invention completes after test figure logger task, can connect host computer derived data log file.In the embodiment described in Fig. 2, device is set up data with host computer by USB interface and is connected, and the test figure log file in storer is sent to host computer by device, completed the analytical work of data by host computer.
Claims (3)
1. a test figure pen recorder, it is characterized in that: main control microprocessor is connected with interface chip, storer, CAN transceiver, real-time clock respectively, main control microprocessor is embedded with host computer interface module, data memory module, CAN communication module, protocol analysis module, timestamp module; In the peripheral circuit of main control microprocessor, host computer interface module is connected by parallel bus with interface chip, and apparatus for establishing is connected with the data of host computer; Data memory module is connected by spi bus with storer, the access monitor data log file of implement device, monitoring configuration file function; CAN communication module is connected by spi bus with CAN transceiver, and apparatus for establishing is connected with the CAN data of ECU; Timestamp module is connected by parallel bus with real-time clock, makes main control microprocessor obtain accurate system time from real-time timepiece chip; DC/DC converter provides 5V power supply for main control microprocessor and other peripheral circuits;
Protocol analysis module and CAN communication module in described main control microprocessor have message communication relation, on the one hand, CAN communication module is received the message from ECU, need to be resolved by protocol analysis module, obtain monitor data, on the other hand, configuration data is packaged as CAN message by protocol analysis module, is sent to ECU sends which monitor data and how to send these data to inform ECU by CAN communication module; Data memory module and protocol analysis module have data communications context, protocol analysis module by the monitoring data transmission from ECU to data memory module, form with monitor data file deposits storer in, and receive the configuration data of reading from storer from data memory module and be packaged as CAN message, finally send it to ECU; Protocol analysis module is also from timestamp module time of reception stamp information, and the precise time information that protocol analysis module contains the monitor data of receiving from ECU and timestamp is synthesized, and deposits in the lump storer in; Host computer interface module and data memory module have file correspondence, in the time that device connects host computer, host computer interface module receives the configuration data file from host computer, transfer to data memory module and deposit storer in, and data memory module is read monitor data file from storer, transfer to host computer interface module, finally export host computer to.
2. a kind of test figure pen recorder according to claim 1, is characterized in that it is to be usb bus, CAN bus, universal serial bus, blue tooth interface by wireless or wired communication interface that described host computer is set up data connection.
3. a kind of test figure pen recorder according to claim 1, it is characterized in that described storer comprises that read-only storage is FLASH chip, eeprom chip, micro hard disk, or removable memory is SD card, CF card, USB flash drive, memory stick.
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| CN201410055968.4A CN103792941A (en) | 2014-02-19 | 2014-02-19 | Test data recording device |
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| CN201410055968.4A CN103792941A (en) | 2014-02-19 | 2014-02-19 | Test data recording device |
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Cited By (7)
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| CN105034985A (en) * | 2015-06-03 | 2015-11-11 | 广州智维电子科技有限公司 | Intelligent dictograph for communication data of complete vehicle network |
| CN105527878A (en) * | 2014-09-28 | 2016-04-27 | 炬芯（珠海）科技有限公司 | Data acquisition method, data acquisition device and data acquisition and debugging system |
| CN107528758A (en) * | 2017-09-13 | 2017-12-29 | 陕西法士特齿轮有限责任公司 | A kind of high-speed CAN bus data conversion device and its conversion method |
| CN108227568A (en) * | 2017-12-15 | 2018-06-29 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of data storage device and method based on SAFEBus buses |
| CN109993955A (en) * | 2019-03-27 | 2019-07-09 | 上海工程技术大学 | A kind of General Aviation Flight data radio transmission apparatus based on G1000 system |
| CN111896824A (en) * | 2020-07-14 | 2020-11-06 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Unattended reliability testing device and system |
| CN115426279A (en) * | 2022-08-31 | 2022-12-02 | 东风电驱动系统有限公司 | Equipment operation information acquisition system and acquisition method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527878A (en) * | 2014-09-28 | 2016-04-27 | 炬芯（珠海）科技有限公司 | Data acquisition method, data acquisition device and data acquisition and debugging system |
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| CN105034985A (en) * | 2015-06-03 | 2015-11-11 | 广州智维电子科技有限公司 | Intelligent dictograph for communication data of complete vehicle network |
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| CN108227568A (en) * | 2017-12-15 | 2018-06-29 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of data storage device and method based on SAFEBus buses |
| CN109993955A (en) * | 2019-03-27 | 2019-07-09 | 上海工程技术大学 | A kind of General Aviation Flight data radio transmission apparatus based on G1000 system |
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| CN111896824A (en) * | 2020-07-14 | 2020-11-06 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Unattended reliability testing device and system |
| CN111896824B (en) * | 2020-07-14 | 2023-08-11 | 华东计算技术研究所（中国电子科技集团公司第三十二研究所） | Unattended reliability testing device and system |
| CN115426279A (en) * | 2022-08-31 | 2022-12-02 | 东风电驱动系统有限公司 | Equipment operation information acquisition system and acquisition method |
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Application publication date: 20140514 |