US 12,222,236 B2
Self-powered weigh-in-motion system
Sara Ahmed, San Antonio, TX (US); Mohamadreza Khalili, Austin, TX (US); Athanassios Thomas Papagiannakis, Austin, TX (US); Gopal Vishwakarma, Austin, TX (US); and Samer Dessouky, Helotes, TX (US)
Assigned to BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, Austin, TX (US)
Filed by Sara Ahmed, San Antonio, TX (US); Mohamadreza Khalili, Austin, TX (US); Athanassios Thomas Papagiannakis, Austin, TX (US); Gopal Vishwakarma, Austin, TX (US); and Samer Dessouky, Helotes, TX (US)
Filed on Jul. 7, 2022, as Appl. No. 17/859,429.
Claims priority of provisional application 63/219,489, filed on Jul. 8, 2021.
Prior Publication US 2023/0024822 A1, Jan. 26, 2023
Int. Cl. G01G 19/52 (2006.01); G01G 3/13 (2006.01); G01G 19/03 (2006.01); H02N 2/18 (2006.01); H10N 30/30 (2023.01); H10N 30/50 (2023.01)
CPC G01G 19/035 (2013.01) [G01G 3/13 (2013.01); G01G 19/52 (2013.01); H02N 2/181 (2013.01); H10N 30/302 (2023.02); H10N 30/50 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A weigh-in-motion system comprising:
an enclosure comprising a top plate installed flush with a pavement;
a microcontroller unit within the enclosure; and
a plurality of piezoelectric stacks, a respective one of the piezoelectric stacks comprising:
a sensing piezoelectric component that is communicatively connected to a data input of the microcontroller unit as a sensor for at least one moving vehicular load; and
an energy harvesting piezoelectric component that generates energy based on the at least one moving vehicular load and is connected to a power input of the microcontroller unit; and
wherein the microcontroller unit analyzes sensor data from at least one of the plurality of piezoelectric stacks to generate vehicle classification data that describes the at least one moving vehicular load.