DRM4000L-N00-232 Datasheet, PDF (1/4 Pages) Honeywell Solid State Electronics Center – DRM™4000L Dead Reckoning Module

DRM^™4000L
Dead Reckoning Module
The Dead Reckoning Module (DRM^™) 4000L is a miniature, electronic
device for personnel on foot that provides the user’s position relative to
an initialization point. Dead Reckoning (DR) data and external GPS
NMEA data are blended by an internal Kalman filter. When GPS data
is available the dead reckoning sensors are automatically calibrated
continuously and the two data sources are blended into a composite
real-time position data output. When GPS data is unavailable, dead
reckoning takes over. DRM^™4000L position error characteristics are
independent of time, and depend primarily on distance traveled.
Patented motion classification algorithms (SmartPedometry™) analyze
walking motion, and compensate when the user is running, or just “fidgeting” in place. Commercially available gyros are
included to compensate for transient magnetic disturbances and transient accelerations that may interfere with compass
operation. A barometric altimeter provides vertical position accurate enough to discriminate between floors of a building
(1.5 meter accuracy). High fidelity azimuth, pitch and roll data from the magnetic compass is also available for use by the
host system.
The DRM^™4000L unit can be directly interfaced to many GPS receivers and man-pack computers, and includes
capabilities for accurate field calibration. The DRM^™4000L is a reliable GPS supplement for personnel on foot. The unit is
small enough to be easily integrated into torso-mounted devices, and does not require any sensors on the legs or feet.
Applications for the DRM^™4000L include personnel tracking (fire, police, and security), real-time waypoint navigation,
disaster relief operations, and cell phone signal strength mapping.
FEATURES & BENEFITS
 ^{State-of-the-art dead reckoning device for personnel navigation.}
 ^{Continuous, gap-free, personnel position location, with or without GPS. DR accuracy up to 2% of distance traveled.}
 ^{Internal Kalman filter integrates dead reckoning position with external GPS, using NMEA0183 format}
 ^{Digital compass azimuth accuracy better than 1°}
 ^{Low power consumption (<0.5 watt) and small size (approx 2 x 2 x 0.4 inches) for man-portable applications}
 ^{Built-in World Magnetic Model for accurate true direction anywhere (automatic declination)}
 ^{Motion classification and adaptive algorithms maximize accuracy under difficult conditions}

Sensors include
altimeter
3
commercial
grade
gyros,
3
accelerometers,
3
magnetometers,
temperature,
and
barometric
 ^{Industrial temperature range (-40° to +85°C) for wide environment usage}
 ^{Available as a circuit card module with RS232 interface or a demonstration kit with a USB interface.}