|
|
|
|
| Advanced Road Weather Information System |
| An Advanced Road Weather Information
System (ARWIS) consists of multiple sites, each containing various meteorological
sensors collecting weather information, such as ambient temperature, relative
humidity, air pressure, wind speed/direction, solar radiation, precipitation,
visibility are being reported to a central location for an up-to-date viewing
of incoming data. |
|
Road state information is being collected through an Intelligent Road Sensor
(IRS) capable of measuring surface as well as sub-surface temperatures,
snow, ice and water film height. Chemical concentration and freezing temperature
is obtained as a direct output of this sensor. |
 |
| All sensors connect to a remote
processing unit (RPU), installed in close proximity to the roadway. A Server
polls each ARWIS at a predetermined interval or on a "change on event"
based algorithm. The Server collects and stores the data and uploads the
same to an Internet based user interface. Road maintenance crews access
the latest information through a standard Internet browser. |
|
The LUFFT ARWIS system is based on an open system architecture and a modular
concept, permitting the connection of a wide selection of industrial sensors
available on the market today. |
|
LUFFT ARWIS Overview
|
|
|
|
|
|
|