US 11,699,346 B1
Advanced parking management system
Balu Subramanya, Darnestown, MD (US)
Filed by Balu Subramanya, Darnestown, MD (US)
Filed on Apr. 12, 2021, as Appl. No. 17/228,140.
Application 17/228,140 is a continuation of application No. 14/144,161, filed on Dec. 30, 2013, granted, now 11,004,337.
Claims priority of provisional application 61/790,209, filed on Mar. 15, 2013.
Claims priority of provisional application 61/746,842, filed on Dec. 28, 2012.
This patent is subject to a terminal disclaimer.
Int. Cl. G08G 1/017 (2006.01); G08G 1/14 (2006.01); G01S 13/50 (2006.01); G01S 13/86 (2006.01); G01S 13/08 (2006.01); G01S 13/04 (2006.01); G01S 13/91 (2006.01); G01S 13/82 (2006.01); G07B 15/02 (2011.01)
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
OG exemplary drawing
 
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.