US 11,656,116 B2
Permeable pavement monitoring system
Joseph A. Diekfuss, Waukesha, WI (US); Nicholas J. Hornyak, Pewaukee, WI (US); and Christopher M. Foley, Milwaukee, WI (US)
Assigned to P4 Infrastructure, Inc., Milwaukee, WI (US)
Filed by P4 Infrastructure, Inc., Milwaukee, WI (US)
Filed on Nov. 6, 2019, as Appl. No. 16/676,296.
Claims priority of provisional application 62/757,027, filed on Nov. 7, 2018.
Prior Publication US 2020/0141785 A1, May 7, 2020
Int. Cl. E01C 3/00 (2006.01); G01F 23/80 (2022.01); E01C 11/22 (2006.01); E01C 3/06 (2006.01)
CPC G01F 23/804 (2022.01) [E01C 3/003 (2013.01); E01C 3/06 (2013.01); E01C 11/226 (2013.01); E01C 2201/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. System for monitoring water-levels generated by water flowing through an area of a permeable surface into a water drainage structure situated below the permeable surface, the system comprising:
a permeable surface including pavement, the permeable surface including water flow openings through which water flows into the water drainage structure;
a first water-level sensor located at a first position in the water drainage structure to generate first water-level data representative of the water-level at the first position, wherein the first water-level sensor is associated with a first location in the permeable surface;
a second water-level sensor located at a second position in the water drainage structure to generate second water-level data representative of the water-level at the second position, wherein the second water-level sensor is associated with a second location in the permeable surface different than the first location;
a data memory; and
a data processor coupled to the first and second water-level sensors and the memory to store water-level data sampled from the sensors at a plurality of times t0 to tn, generate a plurality of first water-level change rates r1 to rn based upon first water-level data and store such rates in memory in reference to times t1 to tn, generate a plurality of second water-level change rates rr1 to rrn based upon second water-level data and store such rates in memory in reference to times t1 to tn, compare rates r1 to rn to changes rates rr1 to rrn for a select group of times t1 to tn to generate comparison data c1 to cn and store such comparison data in memory in reference to at least one of the first and second water-level change rates r or rr, determine and store comparison data changes over time in reference to the at least one of the first and second water-level change rates, and determine one or more locations of clogging in the permeable surface based on analyzing the comparison data, wherein the determining the one or more locations of clogging in the permeable surface is based at least in part on the first water-level sensor being located at the first location and the second water-level sensor being located at the second location.