CPC B62B 5/0438 (2013.01) [A47F 10/04 (2013.01); B60K 25/08 (2013.01); B60T 7/16 (2013.01); B60T 7/18 (2013.01); B62B 3/14 (2013.01); B62B 3/1404 (2013.01); B62B 3/1412 (2013.01); B62B 3/1424 (2013.01); B62B 3/1492 (2013.01); B62B 5/0003 (2013.01); B62B 5/048 (2013.01); B62B 5/0423 (2013.01); G01C 21/12 (2013.01); G01C 21/206 (2013.01); G06K 7/10366 (2013.01); G06Q 10/08 (2013.01); G08B 13/2434 (2013.01); G08B 13/2448 (2013.01); G08B 13/2462 (2013.01); G08B 13/2482 (2013.01); G08G 1/20 (2013.01); H02K 7/1846 (2013.01); H04W 4/024 (2018.02); H04W 4/029 (2018.02); G08B 13/246 (2013.01); G08B 13/2474 (2013.01); G08B 13/2477 (2013.01); Y10T 29/49826 (2015.01)] | 14 Claims |
1. A system for monitoring a human-propelled cart, the system comprising:
a first magnetic sensor configured to record first magnetic data, the first magnetic sensor being part of a wheel assembly of the human-propelled cart;
a second magnetic sensor configured to record second magnetic data, the second magnetic sensor attached to the human-propelled cart and being separate from said wheel assembly; and
a processor configured to receive the first magnetic data and the second magnetic data, and to use the first and second magnetic data to determine at least a heading of the human-propelled cart;
wherein the first magnetic sensor is positioned at a first height and the second magnetic sensor is positioned at a second height that is different from the first height.
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