CPC G08G 1/143 (2013.01) [G01S 13/04 (2013.01); G01S 13/08 (2013.01); G01S 13/50 (2013.01); G01S 13/825 (2013.01); G01S 13/867 (2013.01); G01S 13/91 (2013.01); G08G 1/0175 (2013.01); G08G 1/142 (2013.01); G08G 1/144 (2013.01); G08G 1/146 (2013.01); G08G 1/147 (2013.01); G07B 15/02 (2013.01)] | 15 Claims |
1. A parking management system, comprising:
a roadside unit including a vehicle occupancy sensor with a zone of detection that corresponds to a parking space being monitored, a radio frequency (RF) transceiver with a first antenna that radiates towards the parking space to communicate with an in-vehicle transceiver and a second antenna that radiates in a direction to communicate via nearby gateways or cellular towers;
an imaging camera system with at least one imaging sensor for collecting secondary evidence relating to a plurality of spaces and shared across the plurality of spaces;
a guidance display indicating the number of parking spaces available in a given zone or direction of travel; and
an in-vehicle device with a battery operated RF transceiver that is designed to communicate with the roadside unit,
wherein a protocol is configured to establish two-way communication between the roadside unit and the in-vehicle device, and is configured to include a time delay element configured to determine a distance between the roadside unit and the in-vehicle device based on a fixed or known time delay and includes at least one selected from the group of: one or more beacon setting requirements, information needed for identification, information needed for authentication or security purposes, or any combination thereof.
|