System and method for detecting presence of a human in a vehicle
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United States of America Patent
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-
Apr 1, 2008
Grant Date -
Apr 27, 2006
app pub date -
Oct 25, 2004
filing date -
Oct 25, 2004
priority date (Note) -
In Force
status (Latency Note)
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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.
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