WILLWARN

Foresighted driving and early detection of hazards is a key for safe driving and accident avoidance. WILLWARN (Wireless Local Danger Warning) is developing a communication-based system that extends the driver's horizon and intelligently warns the driver of dangerous situations ahead. WILLWARN provides drivers the opportunity to adapt the vehicle speed and inter-vehicle distance early-on, leading to a higher situational awareness of potential unforeseen danger.
The three-year WILLWARN subproject is developing, integrating and validating a safety application that warns the driver whenever a safety-related critical situation occuring beyond the driver's field of view. This includes the development of on-board hazard detection, in-car warning management, and decentralised warning distribution by vehicle-to-vehicle communication on a road network. Positioning, relevance checks, message transport, and on-board message evaluation will enable a low-cost and reliable solution for wireless local danger warnings.
The key issues of WILLWARN include:
-
Improved safety through vehicle-to-vehicle and vehicle-to-infrastructure communication
-
High benefit for the user even at low equipment rates using cars as relays for transporting messages in a road network
-
Design of a basic system at low cost
WILLWARN will cover the following scenarios:
-
Detection and warning of obstacles on the road, warning if one's own car is an obstacle for others
-
Warning of emergency vehicles or slow vehicles
-
Detection of reduced friction or reduced visibility through bad weather
-
Warning of dangerous spots such as construction zones through electronic beacons

Key Events and Milestones
WILLWARN has four major milestones at the IP level:
-
Functional requirements and basic design decisions (January 2005)
-
System Specification (July 2005)
-
Experimental setup & test equipment (July 2006)
-
Validation, evaluation and assessment (January 2007)
Application of Results
WILLWARN contributes to the IP PReVENT functions hazard messaging and warning, and electronic horizon, and enables foresighted driving. A major result will be the functional system design of the wireless local danger warning application with the following components:
-
Hazard detection algorithms (logics and observers) based on CAN data, GPS, and optional environment sensors e.g. radar
-
Warning Message Management with messaging and forwarding strategies
-
On-board relevance checks and warning evaluation
-
Communication requirements, choice of radios, frequency allocation, and standardisation. System architecture and protocols for routing and application
-
Guidelines for Human Machine Interface
WILLWARN demonstrators
IP PReVENT |
|
SASPENCE |
Common definitions for safe speed and safe distance |
INTERSAFE |
Use of same communication equipment |
MAPS&ADAS |
Map horizon and hot spot information as part of an advanced WILLWARN system |
ProFusion |
Use of sensor data fusion to improve hazard detection |
Response 3 |
Use of Response Checklist and Controllability Verification |
INSAFES |
Foresighted information by communication |
|
|

|
Use of TPEG-Standard and AGORA-C for hazard warning; security mechanisms |

|
General HMI guidelines |

|
Use of scalable routing algorithms for Ad-hoc Networking |

|
Standards for application protocols and free communication band close to 5.9 GHz |
Gerhard Noecker
WILLWARN Subproject Coordinator
DaimlerChrysler AG
[email protected]
|