HomeAbout UsContactExhibitionsFeedbackNewsNewsletterOrderingPress ReleasesProductsRSS FeedSupport

Trimble Lassen DR+GPS

GPS & Dead Reckoning (DR) On A Single Board

When GPS Alone Is Just Not Good Enough

		Dead reckoning & GPS module/kit Power consumption < 0.65 W Operating temp -40° to +85°C (module) Next-generation RF technology Compatible with the Lassen-SK8 Differential GPS (DGPS) ready NMEA or TSIP protocols Automatic calibration of external sensor inputs Different antennas available Module or kit available Datasheet/Manual: Datasheet in PDF format Manual in PDF format

Introduction

The Trimble® Lassen® DR+GPS combines dead reckoning (DR) with GPS to produce accurate and instantaneous positions, even under the most difficult conditions. For service providers tracking high-value or perishable cargo, Lassen DR+GPS dramatically improves quality of service (QoS) and customer satisfaction and retention, helping tracking service providers to maximize revenue opportunities.

Dead reckoning (DR) estimates position based on heading and distance traveled since the last known position. The more accurate the speed, time and heading inputs, the more accurate the dead reckoning. This is where GPS helps. GPS continuously calibrates the gyro and speed sensors to produce optimal dead reckoning.

Lassen DR+GPS accepts inputs from an analog gyro, an odometer pulse and a forward/reverse indicator. Its sophisticated DR+GPS algorithm auto- calibrates these sensors and optimally blends the sensor inputs and GPS to produce accurate position and velocity outputs in the most hostile GPS environments.

Key Features

Instantaneous and accurate positions in deep urban canyons and dense forests.
Continuous position outputs in tunnels, parking garages and on lower bridge decks.
Reliable positioning for tracking high-value assets and for mapping RF field strength.
Improves QoS and customer satisfaction and retention to maximize service revenue.

Lassen DR+GPS Module

A PCB assembly suitable for integration in navigation, telematics and tracking systems. This module includes a sophisticated DR processor and requires external inputs from a gyro, speed pulse, reverse indicator, and ignition indicator (see picture above for module).

Lassen DR+GPS Kit

A Lassen DR+GPS module, gyro, backup battery and interface motherboard mounted in a rugged metal enclosure. DR operation requires external connections to a speed pulse and forward/reverse signal.Picture to the right shows both the front and back of the unit, all interfaces are shown.

The kit includes:

Magnetic mount GPS antenna with 5m cable
USB interface cable
Vehicle interface cable
AC/DC power supply
Software toolkit and manual on CD-ROM

Under Windows, when connected to the PC via USB, the PC sees two COM ports which can be accessed via standard serial port software.

Specification
Performance:
Update rate:	1 Hz
Accuracy:	Horizontal Accuracy. < 5 m Altitude Accuracy. < 10 m Velocity Accuracy. < 0.02 m/s PPS .± 500 ns TTFF (calibrated). < 2 s
Protocols:
Configurable:	NMEA or Trimble binary (TSIP)
NMEA Messages:	GGA, VTG, GSA, GSV, ZDA and RMC
Lassen DR+GPS Kit Specs
Prime Power:	9 to 32 V DC
Operating Temperature:	0°C to 60°C
Storage Temperature:	-55°C to +80°C
Communication Interface:	USB client
Vehicle Interface Connector	DB9
Antenna Connector	SMB
PPS Connector	BNC
Enclosure	Dimensions without connectors ~173 mm x 102 mm x 38 mm ~6.8" x 4" x 1.5"
Lassen DR+GPS Module Specs
Prime Power:	3.3 ± 0.2 V DC 190 mW (typical)
Backup Power:	2.5 to 3.6 V DC 30 μA @ 25 ºC
Antenna Power:	5.0 V DC
Operating Temperature:	– 40°C to +85°C
Storage Temperature	– 55 °C to +100°C
Interface and Power Connector:	14-pin Micro Match (AMP Part Number 1-215079-4)
Antenna Connector:	SMB or Fakra PCB
Dimensions	32 mm x 66 mm x 8.5 mm ~6.8" x 4" x 1.5" (without RF connector)
Other:
Dimensions:	3.25" x 1.25" x 0.40" (82.6mm x 31.2mm x 10.2mm) without connectors
Weight:	0.7 oz. (19.6 g) without optional shield
Connectors:	RF: SMB I/O: 8-pin (2x4), 0.100” header
ROHS Status:	This product is lead free/ROHS compliant.

Accessories
	Bullet III Antenna Designed for fixed mounting via standard 3/4" pipe thread Optional cable and adapters available 35 dB ± 3 dB gain Dimensions: 77.5 mm x 66.2mm Weight: 170g Part number: 57860-10 BULLET III 5V F-style 57860-00 BULLET III 5V TNC This product is lead free/ROHS compliant. See here for more details
	Hard Mount GPS Antenna Compact, hard mount, active micropatch antenna TNC connector 26dB gain Dimensions: 62.6 mm x 19.0 mm Weight: 180g Part number - 57860-70 This product is lead free/ROHS compliant. See here for more details
	Miniature 5V GPS Antenna Compact, active micropatch antenna with 5-meter cable SMB or SMA connector Magnetic mount 29dB gain Dimensions: 30.8mm L x 35.8 mm W x 11.8 mm H Weight: 100g with cable Part number: 56237-00 (SMB Connector) 56237-40 (SMA Connector) This product is lead free/ROHS compliant. See here for more details
Picture to follow	RF Shield Optional shield which encapsulates the Lassen DR+GPS module in a sheet metal shield that protects the module from ESD and mechanical damage. Part number: TBC This product is lead free/ROHS compliant.

Ordering Details:
Board:	46999-80 Lassen DR+GPS Module, unshielded 55000-80 Lassen DR+GPS Module, shielded 61100-05 Lassen DR+GPS Kit Please note that boards are supplied with no cables, software or manuals. Software/manuals are available electronically.
Accessories:	ROHS compliant parts (old non-ROHS part number in brackets): 56237-00 (40767-00) 29 dB magnetic mount antenna, 5-meter cable, ROHS compliant 57860-10 (41556-10) BULLET III 5V GPS ANTENNA F-style 57860-00 (41556-00) BULLET III 5V GPS ANTENNA TNC 23420 50 Foot (15 meter) RG-59 antenna cable with F connectors. 22806 F-SMB converter cable 57860-70 (28367-70) 26 dB hard mount antenna, TNC connector, ROHS compliant
Further Information:	Want further information or pricing on this product? Either fill out our feedback form or contact us for further information.

Home - About Us - Contact - Exhibitions - Feedback - News - Newsletter - Ordering - Press Releases - Products - RSS Feed - Support