Inventors:
Charles Eagen - Ann Arbor MI, US
Lee Feldkamp - Plymouth MI, US
Sam Ebenstein - Southfield MI, US
Kwaku Prakah-Asante - Commerce Township MI, US
Yelena Rodin - Southfield MI, US
Greg Smith - Ann Arbor MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
B60R 21/015
G08B 23/00
G06F 19/00
US Classification:
701 1, 701 35, 701 45, 706 15, 706 30, 702 56
Abstract:
A system for detecting the presence of a human in a vehicle is provided. The system includes a vibration sensor that is configured to detect vibrations of the vehicle, and to output signals related to the sensed vibrations. A processor is configured to receive the signals output from the vibration sensor. The processor also operates a neural network that has a plurality of nodes, at least some of which are recurrent. The use of the recurrent nodes allows the output of a recurrent node to be fed back into itself, or another node. In addition, the output that is fed back can be combined with other inputs entering the node. In this way, the neural network can quickly learn to distinguish between various conditions, including an occupied state and an unoccupied state of the vehicle. The neural network provides an output indicating whether the vehicle is occupied.