US 12,403,942 B2
System for obstacle detection
Gabi Arieli, Nitzan (IL); Rafi Gabbay, Ashdod (IL); Gil Klar, Yavne (IL); Tomer Baum, Moshav Nechusha (IL); Yacov Attias, Ashdod (IL); and Rami Shlomov, Even Shmuel (IL)
Assigned to Elta Systems Ltd., Ashdod (IL)
Filed by Elta Systems Ltd., Ashdod (IL)
Filed on Dec. 16, 2019, as Appl. No. 16/715,378.
Claims priority of application No. 263848 (IL), filed on Dec. 19, 2018.
Prior Publication US 2020/0198674 A1, Jun. 25, 2020
Int. Cl. B61L 23/04 (2006.01); B61L 23/34 (2006.01); G01S 13/931 (2020.01)
CPC B61L 23/041 (2013.01) [B61L 23/34 (2013.01); G01S 13/931 (2013.01); B61L 2205/02 (2013.01); G01S 2013/9328 (2013.01); G01S 2013/9329 (2020.01)] 44 Claims
OG exemplary drawing
 
1. A system for alerting on interfering objects in path of vehicle's propagation, the system comprising:
an RF transmission/reception unit comprising at least one transmitting phased array antenna unit, at least one receiving phased array antenna unit, a main processing unit, and a control unit;
wherein the RF transmission/reception unit is configured for periodically scanning a selected region by transmission of interrogating RF signal and collecting reflected RF signals from the selected region based on a desired scanning profile and generating based thereon pattern data indicative of the collected RF signal, and for transmitting the pattern data to the control unit;
wherein the control unit is configured and operable for processing the pattern data for determining existence of interfering object in path of propagation of a vehicle carrying the system, and for generating alert data indicative of existence of one or more of the interfering objects; and
wherein said vehicle is a train and wherein the control unit is configured and operable for determining path of said vehicle by identifying rails on which said train is moving, and wherein said control unit is configured for selectively limiting scanning region in accordance with projected path of the rails; and
wherein said processing further comprises:
obtaining pre-stored data indicative of propagation path of said vehicle in said selected region;
generating operational data indicative of the desired scanning profile; and
transmitting the operational data to the RF transmission/reception unit for executing the desired scanning profile.