US 12,008,100 B2
Transport component tamper detection based on impedance measurements
Satyajit P. Patne, The Colony, TX (US); and Ryan N. Wilson, Plano, TX (US)
Assigned to TOYOTA MOTOR NORTH AMERICA, INC., Plano, TX (US)
Filed by TOYOTA MOTOR NORTH AMERICA, INC., Plano, TX (US)
Filed on Apr. 19, 2021, as Appl. No. 17/234,702.
Prior Publication US 2022/0335123 A1, Oct. 20, 2022
Int. Cl. G06F 21/55 (2013.01); G07C 5/08 (2006.01)
CPC G06F 21/552 (2013.01) [G06F 21/554 (2013.01); G07C 5/0816 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method, comprising:
determining a first output impedance of a first electronic control unit, the first electronic control unit located on a first transport;
determining that the first output impedance is outside of a range of a first threshold of the first electronic control unit;
determining a second output impedance of a second electronic control unit in response to the determination that the first output impedance is outside of the range of the first threshold of the first electronic control unit, the second electronic control unit located on a second transport;
determining a difference between the second output impedance and a second threshold of the second electronic control unit;
determining a difference between the first output impedance and the first threshold;
determining that the difference between the second output impedance and the second threshold of the second electronic control unit is less than the difference between the first output impedance and the first threshold; and
providing a notification, in response to the determination that difference between the second output impedance and the second threshold of the second electronic control unit is less than the difference between the first output impedance and the first threshold.