Seekur's smaller brother, Seekur Jr, is a sturdy, all-weather
platform that can handle everything from open fields to parking
garages. This skid-steer platform handles moderate terrain with good stability. SeekurJr offers space, power
and networking for onboard PCs. This opens the way
for onboard vision processing, radio-based communications, laser rangefinding, DGPS, and other autonomous
functions.
Seekur Jr runs up to
two hours on its
NiMH batteries. Seekur Jr's four monster wheels are designed for speeds up to 1.2 meters per second [2.7mph]
and slopes up to 75% with good response, even with a 50kg payload.
Seekur options include laser, DGPS, MobileRanger stereovision, an
inertial measurement unit, user I/O expansion and a rapidly growing
suite of other accessories.
The
bare Seekur Jr base
with included ARIA software and optional radio modem has the ability
to:
Seekur Jr, shown with GPS, ARNL Laser Mapping & Navigation plus radio Ethernet.
WANDER randomly,
avoiding obstacles
DRIVE controlled by
keys or joystick
COMMUNICATE SENSOR
& CONTROL INFORMATION including steering and traction motor data,
user I/O, and battery charge data
RUN C/C++ PROGRAMS
created with or without ARIA or our other software development
environments
SIMULATE BEHAVIORS
OFFLINE with the simulator that accompanies each development environment
With a
Seekur Jr PC and our Laser Mapping and Navigation option, Seekur Jr can:
MAP warehouses,
hangars and other spaces in minutes
PLAN PATHS to goals
AVOID OBSTACLES along
the way
Videos
It's not painted yet, but here is a sneak preview of:
Built
by production engineers with years of experience, Seekur Jr utilizes
a weight saving aluminum unibody. This lowers the center of mass for better terrain
handling and grade capability. The pneumatic 400mm diameter tires
handle indoors, outdoors and in between. This skid-steer
platform is holonomic; it can rotate within its own radius.
Seekur Jr climbs a 75% grade with no load. On level surfaces, Seekur Jr is expected to move at speeds
of 1.2m/s [2.7 mph], with payloads up to 50kg. Payloads include all
accessories and must be balanced appropriately for effective operation
of this or any robot.
The platform is expected to achieve a typical continuous run-time of 45-60 minutes and an average useful run-time of 2-3 hours. Batteries may be hot-swapped. Run:recharge ratio is expected to be approximately 1:1. This can be bettered by purchasing additional battery packs and hot-swapping.
Proprietary
firmware running on an environmentally hardened microcontroller
controls the platform. It accepts commands and transfers status and
sensor readings to a PC client using the same Aria protocol as all
other MobileRobots platforms. These PC client programs can be run from
Linux or Windows, using Aria and other robotics development libraries
to handle navigation, path planning, and many other robotics tasks.
Seekur Jr UGV runs on pavement, grass, snow and dirt.
TECHNICAL
SPECIFICATIONS
PLATFORMDIMENSIONED DRAWING
DIMENSIONS: 105mm x 840mm x 500mm (lwh)
WEIGHT: 70kg (1 battery)
GROUND CLEARANCE: 100mm
TIRES: 400mm
WHEELBASE: 425mm
BODY: Lightweight aluminum all-weather unibody
IP RATING: 54
TEMPERATURE RATING: –5°C-+35°C standard operation
ENERGY STORAGE: NiMH
RUN TIME: up to 3 hr in continuous motion
SENSORS (optional)
SICK LMS100 Laser rangefinder
Inertial measurement unit
840-tick per revolution Hall Effect sensors on traction motors
MobileRanger outdoor stereovision system
MobileRanger C3D obstacle avoidance system
Weatherized Pan-Tilt-Zoom camera with near IR sensitivity
SOFTWAREincluded unless otherwise noted:
Seekur server operating system
ARIA API, available in source under GPL
Mapper3 indoor mapping software
MobileEyes real-time robot command & control GUI
Optional ARNL, with Laser Mapping & Navigation package
Optional mOGS, with DGPS package
NAVIGATION & MOTION
STEERING & SUSPENSION: 4 wheel skid steering
MAXIMUM SPEED: expected 1.2 mps
TERRAIN: Pavement, grass, snow, and dirt terrain
SLOPE: expected 75% grade traversibility
TYPES: guarded tele-operation, manual remote or manual direct drive,
plus indoor/outdoor autonomous operation options
PAYLOAD: 50kg
ELECTRONICS
Onboard Microcontroller Server
Optional programmable Pentium M PCs with ComapctFlash or solid state drive
Expandable user digital and analog I/O on external high speed CANbus
Provision for DGPS, PTZ camera, 2 laser rangefinders, 3 stereocameras and more
Optional LCD with backlight with diagnostic screens
24V power with +/- conversion capability
5/12/24VDC regulated export power