Fot Net Data Seminar Benmimoun, IKA

FOT-Net Seminar

Data acquisition at the German1-VMC in
euroFOT

Mohamed Benmimoun
Institut für Kraftfahrzeuge (IKA)
13.05.2009, Munich

www.eurofot-ip.eu

Introduction
euroFOT
• euroFOT project started in May 2008
• End of project in August 2011

9bm053.ppt - FOT-Net Seminar 2 Friday, 29 May 2009 www.eurofot-ip.eu

Introduction
Vehicle management center
• The vehicle fleet of an OEM is coordinated and managed by a
Vehicle management center (VMC)
• VMC is an entity which can be seen as the overall management
entity.
• Each VMC represents a country in Europe
• Germany the VMC is divided into
German1
German2


Introduction
VMCs across Europe Italian-VMC
• CRF
French-VMC
Sweden
• PSA (CEESAR)
German1-VMC
• FORD
• MAN
• VW/AUDI
Germany
German2-VMC
• DAIMLER AG
France • BMW Group
Italy Swedish-VMC
• VOLVO Technology
• VOLVO Cars (VCC)


Introduction
German1-VMC


Naturalistic FOT
Definition of required data
• Based on the hypotheses and the research question of the FOT
so called performance indicators are indentified, e.g.
TTC, THW, average speed etc.

• Performance indicators can be derived from certain signals, e.g.
vehicle speed, distance to forward vehicle, steering angle etc.

• These signals have to be identified and are afterwards recorded
by using of a data acquisition system
• For the analysis the recorded data is uploaded to a database
• GPS signal will be used to derive additional information from a
digital map, e.g. road type, number of lanes etc.


Naturalistic FOT
Requirements
As the FOT at the German1 shall be as naturalistic as possible
The data consist only of CAN data
No additional sensors (video, eye trackers etc.) will be used
No additional tasks to the driver (change of hard discs, configuration
of data logger etc.) will be required
The FOT vehicles are driven by ordinary drivers
Driver is also owner of the vehicle:
Modification of vehicles has to be reduced to a minimum
Data acquisition system (DAS) has to be installed in a manner, that:
driver is not distracted by the DAS
integration into the vehicle is conducted without significant modifications
on the vehicle


Naturalistic FOT
Requirements
• All 240 vehicles have to be equipped with a DAS, which enables
recording of all relevant measured values
• As driver shall not be stressed with additional FOT specific tasks
Data upload procedure (upload of the data from the DAS to a certain
data server) is performed without any requirements and actions with
regard to the driver
Data acquisition system with a GPRS modem (for wireless data
upload, diagnostics and re-configuration)
• Further requirements:
The data needs to be stored at first on a temporary storage on the
DAS
Provision of GPS information of the vehicle location
GPS receiver, hard disc (temporary storage) needs to be integrated
into the data logger by ensuring a compact design, due to the
modification restriction


Data acquisition system
Requirements
• Logging of CAN data from the vehicle CAN-busses
• Temporary storage of the logged data
• Compression and encryption of the data
• Integration of a GPRS modem
• Wireless upload of the data via GPRS (autonomous or after
request)
• Communication interface to the data base (data upload,
localisation, status information etc.)
• Compact design for integration into the vehicles without significant
modifications
• Applicable for automotive application (high durability with regard
to vibration, temperature etc.)
• Reliability

Features of selected DAS
Based on the requirements on the DAS a data logger with the
following features was selected:
• 4 CAN channels for logging from different CAN busses
• GPRS quad band modem
• GPS receiver
• Built-in real time clock (with internal battery)
• Socket for SD and SIM card
• USB 2.0
• Application for logging configuration and data conversion
• Support of DBC databases for signal selection
• Firmware upgrade through GPRS


CTAG’s data logger


Integration into a MAN truck


Data upload and storage procedure
Overview
• Data upload and storage procedure for the German1 fleet will be
defined and finally developed by IKA
• Upload and storage procedure will be validated in the piloting
phase
• Data acquisition will be applied for a duration of 1 year
• Estimated amount of data at the German1-VMC adds up to
approximately 3500 GB (CAN only data and GPS information)
• Recorded data will autonomously be uploaded via GPRS to a
centralized data server
• Entire process chain (from data recording to storage on the data
base) is designed to work completely autonomously


Data upload and storage procedure
Overview


Data upload procedure
Communication interface
• Based on a communication interface installed on the data base
the data upload can be initiated
• Communication interface provides all information with regard to
the data logger and vehicle by using GPRS
• The communication interface can be used for the following tasks:
Autonomously synchronisation of data
View DAS which have connected to the server and its most important
parameters
Map matching of vehicle‘s position, based on the GPS information
View the received CAN frames and received GPS frames from each
monitored DAS
Remote control of DAS
Re-configuration of DAS


Data upload procedure
GUI


Data management
Central management system
• The communication interface of the DAS will be integrated into
the central management system (CMS)
• CMS manages the whole data upload and enrichment procedure

Fleet of 250 vehicles
... equipped with
CTAG DAS

GPRS Service Provider

Operators
Central Management System (CMS)


Data management
Structure CMS
CMS Software
Package
Check Extension Enrich Extension

Upload Conversion Check and Plausib. Enrichment and PI
Processor Manager Manager Manager

Fleet
Manager Data Manager

CMS Core Manager

Diagnostic Configuration SQL Database Manager
Manager Manager

CDS


Next steps

• First tests for the assessment the DAS have been conducted
• Extensive tests of DAS will be conducted within the next weeks
• The software for the upload procedure is available but needs to
be integrated into the CMS
• CMS will be developed as soon as final requirements on data
upload and storage are defined
• The validation of the software and hardware will be conducted
within the piloting phase in September 2009


Thank you for your attention

Friday, 29 May 9bm053.ppt - FOT-Net Seminar www.eurofot-ip.eu

Fot Net Data Seminar Benmimoun, IKA

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