Determination of a sensor device location in a sensor network
AssigneeHewlett-Packard Development Company, L.P.
InventorsR. Stanley Williams, Marco Fiorentino
Life of this patent
Estimating the term…
Abstract
Determination of a sensor device location in a sensor network is described. A system can include rotating optical beams having a known location. Detectors can be located with each of the rotating optical beams. The system can include a sensor device placeable as part of the sensor network. A reflector can be near the sensor device and can reflect at least two optical beams back to the detectors associated with each of the respective optical beams. A triangulation module can triangulate a position of the reflector, and thus the sensor, based on the reflected optical beams.
Claims15
A system for determining a sensor device location in a sensor network, comprising:
- a plurality of rotating optical beams having a known location;
- a plurality of detectors, the detectors co-located with respective ones of the rotating optical beams;
- a sensor device configured to be placed as part of a sensor network;
- a reflector near to the sensor device and configured to reflect a plurality of light beams from respective ones of the rotating optical beams back to the corresponding detector co-located with the corresponding rotating optical beam;
- a triangulation module in communication with the plurality of rotating light beams and the plurality of detectors, the triangulation module to triangulate a position of the reflector and sensor device based on the reflected light beams;
- and
- a guidance module configured to provide locational guidance to a worker to place the sensor in a desired position.
A system for determining a sensor device location in a sensor network, comprising:
- a plurality of rotating optical beams having a known location;
- a plurality of detectors co-located with respective ones of the plurality of rotating optical beams;
- a sensor device;
- a reflector near the sensor device to reflect a plurality of light beams from the plurality of rotating optical beams back to respective ones of the detectors, wherein the reflector comprises a plurality of reflectors each having a different inelastic scattering wavelength shift;
- and
- a triangulation module in communication with the plurality of rotating light beams and the plurality of detectors, the triangulation module configured to triangulate a position of the reflector and sensor device based on the reflected light beams, the triangulation module further comprising a tracking module configured to identify and track the reflectors substantially simultaneously using at least one of:
- a continuity of reflector position;
- and
- a difference in wavelength of reflected laser beams from different reflectors when the reflectors each comprise a different inelastic scattering wavelength shift.
A method for placing sensor devices at accurate locations in a sensor network, comprising:
- rotating a plurality of laser beams at a plurality of laser stations in a field;
- positioning a sensor device in the field;
- reflecting the plurality of laser beams from a reflector near the sensor device;
- detecting the reflected plurality of laser beams using a detector in proximity to the laser stations;
- determining a location of the sensor device with respect to the laser stations using triangulation of the reflected plurality of laser beams;
- and
- transmitting a guidance signal to guide a worker in the field to a desired sensor device location.
A method for placing sensor devices at accurate locations in a sensor network, comprising:
- rotating a plurality of laser beams at a plurality of laser stations in a field;
- positioning a sensor device in the field;
- reflecting the plurality of laser beams from a reflector near the sensor device;
- detecting the reflected plurality of laser beams using a detector in proximity to the laser stations;
- determining a location of the sensor device with respect to the laser stations using triangulation of the reflected plurality of laser beams;
- transmitting a guidance signal to guide a worker in the field to a desired sensor device location;
- and
- tracking a plurality of reflectors substantially simultaneously;
- and wherein transmitting the guidance signal to guide the worker further comprises transmitting a plurality of different guidance signals to guide a plurality of workers to different desired sensor device locations.
Dependencies are inferred from the claim text.