AlphaDog

A very large black quadruped robot  in the woods.
AlphaDog needs exercise. Photo: Boston Dynamics

AlphaDog is a quadruped robot the size of a mule (a big mean mule). It's powered by a hydraulic actuation system and is designed to assist soldiers in carrying heavy gear over rough terrain.

Creator

Boston Dynamics

Year
2011
Country
United States 🇺🇸
Categories
Features
AlphaDog goes for a walk. Video: Boston Dynamics/DARPA

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Appearance

Neutral

Did you know?

AlphaDog was initially named "BullDog," but after realizing that the term evoked the image of cute dogs with droopy cheeks and pushed-in faces, Boston Dynamics decided against it.

A very large black quadruped robot  in the woods.
The robot can follow a leader or navigate by GPS. Photo: Boston Dynamics

History

Boston Dynamics, led by Marc Raibert, was funded by DARPA and the U.S. Marine Corps. to develop a highly mobile, semi-autonomous legged robot, the Legged Squad Support System (LS3), to help alleviate physical weight on troops. In early 2012, the LS3 prototype underwent its first outdoor exercise, demonstrating the ability to follow a person using its vision system. Next DARPA plans to complete development of key mobile and sensing capabilities to ensure LS3 is able to support dismounted squads of soldiers in the battlefield. The team working on LS3 (also known as AlphaDog) includes engineers and scientists from Boston Dynamics, Bell Helicopter, AAI Corporation, Carnegie Mellon, NASA's Jet Propulsion Laboratory, and Woodward HRT.

Specs

Overview

Up to 181 kg (400 lb) of payload, dynamic locomotion over steep and slippery terrain.

Status

Inactive

Year

2011

Website
Width
90 cm
Height
190 cm (fully extended legs)
Length
200 cm
Weight
362.9 kg
Sensors

Legs with joint position and force sensors. Body with gyroscope and stereo vision system. Hydraulic system with pressure and temperature sensors.

Actuators

Hydraulic actuators

Degrees of Freedom (DoF)
12
Compute

Custom PC

Power

Internal combustion engine