The report presents the research and results of a study of an overhead vehicle sensor system, along with procedures for operating the prototypes which were constructed. After careful evaluation, a prototype was constructed using the infrared sensor technology. However, it was discovered that the infrared was too sensitive for use as a remote vehicle sensor. After further investigation, an ultrasonic ranging device was chosen for implementation as an overhead vehicle sensor. A prototype was then constructed and tested under laboratory and field conditions and was accepted as being well-suited for use as an overhead vehicle sensor system. Several more prototypes were constructed and put into operation during the period June 1986 through the present. They operate continuously and their accuracy is checked periodically, with traffic counts collected with inductive loops.
Development of an Overhead Vehicle Sensor System
1987
84 pages
Report
No indication
English
Road Transportation , Acoustic Detection , Infrared & Ultraviolet Detection , Transportation , Transportation & Traffic Planning , Vehicle detection , Traffic surveys , Remote sensing , Infrared detectors , Prototypes , Sensors , Vehicle detectors , Traffic data recorders , Traffic counters , Traffic surveillance , Ultrasonic devices
Active-infrared overhead vehicle sensor
Tema Archive | 1994
|OVERHEAD TRANSPORT VEHICLE SYSTEM AND OVERHEAD TRANSPORT VEHICLE
European Patent Office | 2024
|Overhead transport system and overhead transport vehicle
European Patent Office | 2021
|OVERHEAD TRANSPORT SYSTEM AND OVERHEAD TRANSPORT VEHICLE
European Patent Office | 2019
|