Abstract: A method for mapping a three-dimensional structure and obtaining information on the condition of said structure. The method includes injecting a plurality of motes into the structure causing the plurality of motes to travel through the one or more channels, the motes including a sensor and a storage, the motes being arranged designed to obtain a sensor-value measured by the sensor and to store the sensor-value in the storage, thus obtaining a time series of measured sensor-values in the storage, retrieving at least part of the plurality of motes from the structure, obtaining from said retrieved motes the time series of measured sensor-values stored in the retrieved motes, thus obtaining a set of measured time series, determining the structure or the condition by comparing the set of measured time series with a simulation.

Abstract: The invention provides a sensor system, mote and a motes-system. The sensor system is configured for being contained in a container having a maximum outer dimension less than 10 millimeter and for sensing at least one environmental parameter (T, P, pH, ?). The sensor system includes at least one sensor configured for measuring the at least one environmental parameter and for generating a sensed value (xT, xP). The sensor system includes a storage element and a timer in which the at least one sensor is configured to measuring the at least one environmental parameter at each time triggers (t1, t2, . . . ) from the timer and for storing a sensed value (xT, xP). The sensor system further includes an energy storage comprising a chargeable capacitor being chargeable via electro-magnetic radiation of a predefined frequency, and wherein the sensor system is configured to initiate a sequence of sensed values when the energy storage is charged or is being charged.

Abstract: 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.

Abstract: The invention provides a method of inserting a video mode into a remote environment, a video mote, and a sensor system. The video mote includes a camera for capturing a digital image via a flexible wire to a central computer. The video mote further includes an at least partially transparent container and includes a flexible wire having a length of more than 1 meter being connected to the receiver. The method of inserting the video mote include the steps of lowering the video mote into a pipe to a first position near an opening, and forcing a liquid through the pipe and thereby forcing the video mote through the opening into the remote environment.

Abstract: The invention provides a sensor system, mote and a motes-system. The sensor system is configured for being contained in a container having a maximum outer dimension less than 10 millimeter and for sensing at least one environmental parameter (T, P, pH, ?). The sensor system includes at least one sensor configured for measuring the at least one environmental parameter and for generating a sensed value (xT, xP). The sensor system includes a storage element and a timer in which the at least one sensor is configured to measuring the at least one environmental parameter at each time triggers (t1, t2, . . . ) from the timer and for storing a sensed value (xT, xP). The sensor system further includes an energy storage comprising a chargeable capacitor being chargeable via electro-magnetic radiation of a predefined frequency, and wherein the sensor system is configured to initiate a sequence of sensed values when the energy storage is charged or is being charged.

Abstract: A method for mapping a three-dimensional structure and obtaining information on the condition of said structure. The method includes injecting a plurality of motes into the structure causing the plurality of motes to travel through the one or more channels, the motes including a sensor and a storage, the motes being arranged designed to obtain a sensor-value measured by the sensor and to store the sensor-value in the storage, thus obtaining a time series of measured sensor-values in the storage, retrieving at least part of the plurality of motes from the structure, obtaining from said retrieved motes the time series of measured sensor-values stored in the retrieved motes, thus obtaining a set of measured time series, determining the structure or the condition by comparing the set of measured time series with a simulation.

Abstract: 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.