The US Defense Advanced Research Projects Agency (DARPA) is
developing an array of 'intelligent mini-robots' called LANdroids,
designed to operate in communications challenged areas, non-line-of
sight (NLOS), conditions with extensive multipath, noise and
interference, commonly encountered in dense urban environments.
Operating in these conditions, multiple LANdroid robots will
establish and extend communications support to forward elements
as well as support other unmanned systems. In March 2008 DARPA
awarded iRobot a contract to develop a ground communications
relay robot as part of the LANdroids program. The agency is
expected to award additional contracts to other developers to
pursue parallel developments. The program will cover the development
of the robotic platform, communications systems and control
software.
LANdroids will be designed to operate continuously for extended
periods (more than a week) operating as dynamic communications
'hotspots' serving various users on the battlefield. The small
robot (sized as a deck of cards) will be hand emplaced at an
initial 'drop point', from where it will scan the area for nearby
LANdroids or familiar communications signals, dynamically establishing
a 'mesh network' to support nearby radios.
The robot will have a limited mobility (speed of 0.5 m/sec)
and autonomous (non GPS dependent) navigation and geolocation
capability, enabling it to reposition itself to optimize communications
coverage and support nearby troops. For example, when required,
robots will be able follow troops inside a building, providing
optimal communications through several levels and inside enclosed
walls and rooms by establishing multiple relay points along
the way. One or more robots will secure positions where optimal
communications with a nearby vehicles facilitate 'gateway' to
the entire network.
These low cost (less than $100 apiece) LANdroids will be deployed
in large numbers, establishing reconfigurable communications
backbone or a 'mesh' to support operations. This robot will
be small enough that a single dismounted warfighter can carry
multiple robots, inexpensive to the point of being disposable,
robust enough to allow the warfighter to drop and throw them
into position, and smart enough to autonomously detect and avoid
obstacles while navigating in the urban environment.