ALEXANDRIA, Va., March 5 -- United States Patent no. 12,243,424, issued on March 4, was assigned to Frogparking Ltd. (Palmerston North, New Zealand).
"Vehicle flow monitoring system" was invented by Donald H. Sandbrook (Palmerston North, New Zealand).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle flow monitoring system for detecting both a car count and direction of movement of vehicles passing a point of interest. The vehicle flow monitoring system generally includes a car counter which may include a microcontroller and a pair of distance sensors. Each of the distance sensors is oriented toward a unique point of interest. Each of the distance sensors includes a threshold distance reading which is u...