DRM4000-N00-232

DRM™4000 Dead Reckoning Module The Dead Reckoning Module (DRM ™ ) 4000 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. reckoning takes over. DRM ™4000 When GPS data is unavailable, dead 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. An automatic compass orientation algorithm provides accurate azimuth information when the user is upright or prone. 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 data from the magnetic compass is also available for use by the host system. The DRM ™4000 unit can be directly interfaced to many GPS receivers and man-pack computers, and includes capabilities for accurate field calibration. The DRM ™4000 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™4000 include personnel tracking (fire, police, and security), real-time waypoint navigation, disaster relief operations, and cell phone signal strength mapping. FEATURES & BENEFITS 4 State-of-the-art dead reckoning device for personnel navigation. 4 Continuous, gap-free, personnel position location, with or without GPS. Typical DR accuracy 2% distance traveled. 4 Internal Kalman filter integrates dead reckoning position with external GPS, using NMEA0183 format 4 Digital compass azimuth accuracy better than 1° 4 Low power consumption (500 g’s grams 0.5 msec sine Input Power Voltage Range Applied to J1, Pins 1 and 4 Current Range Battery Voltage = 3.3 volts 2.8 3.3 5.2 TBD (Add a number) No GPS Power Supplied Volts DC mA Digital Interface Serial Data RS-232C on J1 Pins 2 (RXD) and 3 (TXD) 9600 Update Rate 19200 38400 4 Connector 10-pin Samtech, SFSD GPS RXD NMEA0183 Data from GPS at CMOS Logic Levels, (J1, Pin 7) Baud Hz - 9600 Baud Environment Temperature 2 Operating Storage (OEM Only) -40 -55 - +85 +125 °C www.honeywell.com DRM4000 CONFIGURATION Configuration information is stored internally in the microprocessor's flash memory. There are a finite number of write cycles to the flash. The limit will not normally be reached if changes are made manually. Care should be taken if the writing is made automatically. Default board orientation is +Y axis up and +Z axis forward. The axes are printed on the module circuit board. This orientation puts the module flat against the torso. Default baud rate is 19200. A factory backup configuration is stored in the module. If an error is generated in the normal configuration, the backup configuration can be read and saved. Hardware jumpers allow for some interface flexibility. Either CMOS or RS232 logic levels are possible on the port pins; with RS-232 for the host computer interface, and CMOS logic for the GPS NMEA0183 data input interface. Y X Z www.honeywell.com 3 DRM4000 CONNECTIONS Use the Samtec Tiger Eye Assembly SFSD series connector to interface to the J1 connector on the module. Interface Pin-Out Definition J1 DRM4000 Signal Definition Comment 1 2 3 4 5 6 7 8 9 10 BAT+ HOST_RXD HOST_TXD GND 1PULSEPERSEC ODOMETER EGPS RXD EGPS TXD EVENT +3.3V, 50mA 2.8 to 5.5 Volts from Host to DRM to Host Power and Data not used not used from GPS to DRM to GPS not used External GPS power/control . ORDERING INFORMATION Ordering Number Output Product DRM4000-N00-232 RS 232 Dead Reckoning Module DRM4000-N00-USB-demo USB Dead Reckoning Module Development Kit * * The Development Kit includes an enclosure with an internal I/O adapter board with a USB interface, GPS receiver, rechargeable lithium battery, Windows™ Host software, carrying case, GPS antenna, baseball cap and 6-foot USB adapter cable. The mini-USB jack accommodates 38.4kbps data transfer as well as trickle charging the battery when required. An illuminated power on/off doubles as a momentary "event" marker button to help in data collection processing. FIND OUT MORE For more information on Honeywell’s Magnetic Sensors, Compassing, Magnetometry and Dead Reckoning visit us online at www.honeywell.com/magneticsensors or contact us at 800-323-8295 (763-954-2474 internationally). U.S. patents 5583776, 6813582, 6842991 & other patents pending. DRM and SmartPedometry are trademarks of Honeywell. Honeywell reserves the right to make changes to any products or technology herein to improve reliability, function or design. Honeywell does not as sume any liability arising out of the application or use of any product; neither does it convey any license under its patent rights nor the rights of others. Honeywell 12001 Highway 55 Plymouth, MN 55441 Tel: 800-323-8295 www.honeywell.com/magneticsensors 4 Form #900356 February 2009 ©2009 Honeywell International Inc. www.honeywell.com