Leading designer and manufacturer of traffic data collection, traffic monitoring and weigh-in motion systems, TDC has launched a system which uses Bluetooth signals to obtain traffic journey time information and traffic movements.
The Hi-Trac® Blue traffic impact analysis system can be used to measure journey travel times and the time taken to pass through tolls. It can also be used for traffic management, to gather statistical information and measure an origin and destination traffic matrix.
The system uses Bluetooth, which is an open wireless technology using the 2.4GHz-2.485GHz unlicensed spectrum for exchanging data over short distances from fixed and mobile devices.
Hi-Trac Blue reads the media access control (MAC) address of Bluetooth devices that are passing the system. Bluetooth devices include mobile phones, hands-free kits, global positioning system onboard units and laptops.
Hi-Trac Blue provides ‘invisible detection’ for the owner of the detected Bluetooth device. The detection process is unnoticeable for the owner.
The device information collected by the Hi-Trac Blue cannot be associated with the device’s owner, whose privacy and user information is guaranteed. The received Bluetooth MAC addresses are condensed and fully encrypted before transmission.
It is expected that by 2013 two out of every three cars will offer Bluetooth connectivity.
