Vehicle Loop Detector Parameter | |
Supply voltage available | 230V AC , 115V AC, 24V DC or 12V DC |
Operating temperature | 20°C to +65°C |
Frequency range | 20 kHz to 170 kHz |
Output relays | 240V/5A |
Reaction time | 10ms |
Tuning rate | 50μH to 1000μH |
Size of housing | 78 x 40 x 108 mm (L x W x H) |
Sensitivity | adjustable in 4 increments |
Wireless vehicle detection is a kind of new vehicle detection system which extensively used in urban traffic vehicle management to collect and transmit traffic flows and status on urban roads to front-end signal controllers and center database.
Currently, this detection technology is available from a small wireless unit (VD) which is installed, by core drilling a small hole in the surface of the carriageway (geomagnetic detector) to measure the Earth's magnetic field change when a vehicle passes by. This will be t ransit as a wireless signal to Routers under 2.4GHz wireless frequency, which can be processed by a Data Acquisition Center Device to generate a variety of traffic data, including vehicle presence signal, speed, headway time, occupancy time, vehicle distance, vehicle length and road saturation