Patent ID: 7636340

Claim:
A method for communication over an 802.15.4 network comprising: obtaining a first image with a sensor; buffering a representation of the first image; modulating the representation of the first image using a first 802.15.4 modem; sending the representation of the first image over the 802.15.4 network to a coordinator; receiving a first command to obtain a second image from the coordinator, said command based on a selectable interval; obtaining the second image with the sensor in response to the receiving a first command; buffering a representation of the second image; modulating the representation of the second image using the first 802.15.4 modem; sending the representation of the second image over the 802.15.4 network to the coordinator; receiving a second command to obtain a third image from the coordinator based at least in part on a comparison between at least a portion of the representation of the first image and a portion of the representation of the second image; and obtaining the third image in response to the receiving a second command, wherein the third image is obtained on an interval different than that of said selectable interval.