首页>
外国专利>
Detecting motor vehicle movements and traffic density in traffic monitoring system - using video camera coupled to digital image memory for comparison of stored with actual images to identify motion with further comparison to identify vehicle types
Detecting motor vehicle movements and traffic density in traffic monitoring system - using video camera coupled to digital image memory for comparison of stored with actual images to identify motion with further comparison to identify vehicle types
A video camera (VK) identifies vehicle movements at critical road locations, such as junctions. The video camera output line connects to a monitor (KM) and also to a memory (BS) and a motion detector (BE). The detector operates by comparing current with previous images. If a difference exists a comparator (VE) is activated and the stored image is compared with stored (MS) values representing vehicle profiles. If the comparator identifies an agreement, a counter (ZS) is incremented. The counter is subdivided to log the number of several types of vehicles identified. A MODEM transmits the data (MD). USE/ADVANTAGE - Counting and gathering of traffic information. No installation of sensors required.
展开▼
