Traffic and geometry modeling with sensor networks
First Claim
1. A method for modeling movement of users in an environment, the environment including sensors connected in a network, comprising:
- detecting events due to movement of the users at the sensors;
labeling each event according to a particular sensor that detected the event and time of the event;
summing the events for each sensor into a corresponding histogram time interval bin associated with the sensor;
generating a plurality of co-occurrence matrices from the histograms according to
where i and j represent each possible pair of sensors, δ
represent time off-sets, T is a total time for the detecting, t represents a particular time, and H represents the histogram time interval bins.
1 Assignment
0 Petitions
Accused Products
Abstract
A method models movement of users in an environment including sensors connected in a network. Events due to movement of the users are detected at the sensors and each event is labeled according to a particular sensor and time of the event. The events for each sensor are summed into a corresponding histogram time interval bin. A plurality of co-occurrence matrices are generated from the histograms according to
where i and j represent each possible pair of sensors, δ represent time-off-sets, T is a total time for the detecting, t represents a particular time, and H represents the histogram time interval bins. The co-occurrence matrices can be used to determine a geometry of the network, and for predicting future activities signaled by terminating events.
-
Citations
21 Claims
-
1. A method for modeling movement of users in an environment, the environment including sensors connected in a network, comprising:
-
detecting events due to movement of the users at the sensors; labeling each event according to a particular sensor that detected the event and time of the event; summing the events for each sensor into a corresponding histogram time interval bin associated with the sensor; generating a plurality of co-occurrence matrices from the histograms according to
where i and j represent each possible pair of sensors, δ
represent time off-sets, T is a total time for the detecting, t represents a particular time, and H represents the histogram time interval bins.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A system for modeling movement of users in an environment, comprising:
-
a plurality of sensors distributed throughout the environment; means for labeling events detected by the sensors according to a particular sensor that detected the event and time of the event; means for summing the events for each sensor into a corresponding histogram time interval bin associated with the sensor; and means for generating a plurality of co-occurrence matrices from the histograms according to
where i and j represent each possible pair of sensors, δ
represent time off-sets, T is a total time for the detecting, t represents a particular time, and H represents the histogram time interval bins.- View Dependent Claims (20, 21)
-
Specification