Driver Monitoring System for Enhancing Road Safety

Transcription

1 Driver Monitoring System for Enhancing Road Safety Raksit THITIPATANAPONG Engineering Fellow, Smart Mobility Research Center Faculty of Engineering, Chulalongkorn University.

2 R&D Concept of Road Safety

3 NEAR MISS INCIDENT DATABASE FOR IMPROVING CAR SAFETY Driver Vehicle Road Traffic

4 NEAR MISS INCIDENT DATABASE FOR IMPROVING CAR SAFETY

5 NEAR MISS INCIDENT DATABASE FOR IMPROVING CAR SAFETY Heinrich s law, labor accident 1 Severe accident 29 Light accident 300 Incident Unusual dangerous

6 MOBILITY SENSING FOR SAFETY AND SECURITY Ordinary driving behavior analysis by data mining ORDINARY BEHAVIOR comparison COMPARISON Hazardous/Anomaly detection CURRENT DRIVING Information guidance, Driving behaviourprediction warning, system intervention integrated sensing Driving database Storage Based on the storage driving database in naturalistic driving : Feature extraction of naturalistic driving behavior/pattern Driving state degradation detection Adaptive HMI design of driver assistance (ACC, LKAS, FCWS, LDWS)

7 CONCEPT OF DRIVER MONITORING SYSTEM based on RISK DRIVING SCORE (RDS) Action from Manager: Warning, Penalty, Rewards, etc. Evaluation Score per Trip, Week or Month Report to Driver and Manager Manager Near-Miss Incident Data Base Fleet Management System Offline Driver Driver Maneuvering / Vehicle Dynamics Raw Data Measurement (5 Hz GPS, etc.) Driver Evaluation Model Feedback System Feedback Display System On Line Off Line Driver Monitoring System On Line On board Real-time Driving Score Feedback to Driver

8 Probe Developments Multi-GNSS

9 Avalibility of u-blox high resolution receivers

10 U-blox 5-Hz resolution meter trajectory accuracy 10

11 Detection Methodology

12 DLT Lamlukka test track Track

13

14 Selected Test Clip

15 Selected Test Clip

16 Results Detection of excessive lateral acceleration Detection of excessive longitudinal acceleration

17 Development of Driver Evaluation Model Risk Driver Score (RDS)

18 How to Evaluate Driving Evaluation by the risk Risk is a chance of road accident while driving Normally, High velocity and high acceleration can lead to the road accident so that risk was defined by velocity and acceleration compare with driving distance Risk driving score (RDS) = 1 f v i a i distance Both Velocity and Acceleration should be two of factor that affect risk of driving

19 Methodology Driving Observer rating Statistical analysis Risk Driving Score Developed Algorithm rating Driving expert Driving simulator Observer Data recorder Developed algorithm Passenger Self-reported questionnaire Occupational therapist Researcher Correlation r =?

20 Fine Tune Driver Evaluating Algorithm for different traffic conditions Well trained driving instructors from SCG Skills Development Practice Learning Center

21 DATA COMPARING Condition Observer score Algorithm score Safety drive Condition Observer score Algorithm score Normal drive Condition Observer score Algorithm score Hurry up drive

22 Safe Zone

23 Commercialization Infinite Sora Technology, Co., Ltd.

24 Product Pictures Multi-GNSS receiver

25 Agenda Data Capture Data Analysis 0.25G 0.3G Data Capture

26 Data Capture w Multi-GNSS Receivers Ublox M8030 Multi-GNSS (GPS+BDS+QZSS) (GPS+GLO+QZSS) Setting for Automotive filter output Raw satellite measurement High Frequency Datalogger 5-Hz update rate (positioning and raw)

27 Data Analysis Based on technical paper Thitipatanapong, R., Chantranuwathana, S., Noomwongs, N., Boonporm, P. et al., "Vehicle Safety Monitoring System with Next Generation Satellite Navigation: Part 2 Excessive Acceleration Detection," SAE Technical Paper , 2015, doi: / The Multi-GNSS probe is process for longitudinal acceleration and lateral acceleration. Both acceleration are applied as indicator for incident and dangerous event. Above 0.25g as regress incident Above 0.30g as dangerous incident

28 Above 0.25g regress driving Date(Sep) Distance km. Hard Brake events Aggressive Turn events Rating Events per 1000 km

29 Above 0.25g regress driving 5 operational day with distance 1,010 km Acquired for 173 incidents 171 incidents / 1000 km Recommend not above 10 incidents / 1000 km

30 Above 0.30g - dangerous driving Date(Sep) Distance km Hard Brake incidents

31 Above 0.30g - dangerous driving 5 operational day with distance 1,010 km Acquired for 17 incidents 17 incidents / 1000 km Recommend not to happen

32 Integrated On-line Monitoring System

33 Supporter