MOTES FOR ENVIRONMENT MAPPING

摘要

Some embodiments provide a first mote and a system of motes for detecting a spatially configuration without the need for an external reference. A first mote is configured for wirelessly receiving a plurality of signal pulses transmitted by a plurality of second motes, each second mote transmitting the signal pulse at one particular modulation frequency from a plurality of frequencies of a frequency band. The first mote includes a receiver for determining from a received signal at least one of the plurality of signal pulses and for identifying the particular modulation frequency of the at least one signal pulse. The first mote further includes a clock for generating a time-stamp at which the signal pulse is received and a storage unit for storing the time-stamp and the corresponding identified particular modulation frequency. The system includes a plurality of first motes and second motes.

主权项

1. A first mote for wirelessly receiving a plurality of signal pulses transmitted by a plurality of second motes, each second mote transmitting the signal pulse being a carrier wave modulated with an envelope function at one particular modulation frequency from a plurality of frequencies within a predefined frequency band, the plurality of second motes using a plurality of different modulation frequencies, the first mote comprising:
a receiver configured and constructed for receiving signals within the predefined frequency band and for determining from the received signals at least one of the plurality of signal pulses, the receiver being further configured and constructed to identify the particular modulation frequency of the at least one signal pulse, a clock for generating a time-stamp at which the signal pulse is received by the first mote, and a storage unit for storing the time-stamp together with the corresponding identified particular modulation frequency.