Genghis (robot)

Last updated
Genghis Robot Genghis Robot.jpg
Genghis Robot

Genghis was a six legged insect-like robot that was created by roboticist Rodney Brooks at MIT around 1991. Brooks wanted to solve the problem of how to make robots intelligent and suggested that it is possible to create robots that displayed intelligence by using a "subsumption architecture" which is a type of reactive robotic architecture where a robot can react to the world around them. [1] His paper "Intelligence Without Representation", which is still widely respected in the fields of robotics and Artificial Intelligence, further outlines his theories on this.

Design

The design of the Genghis robot was inspired by insects who have limited brain functions yet possess tremendous functionality. In order to mimic this trait found in insects Brooks "removed all cognition processors from Genghis and left only the sensors and the code/hardware to allow it to walk". [2] This enabled Genghis to link sensation to an action taken where the robot did not have any pre-planned path to follow but took action as each sensor detected an obstacle. With Genghis, Brooks pioneered his "sensation-action theory of intelligence which was to bypass explicit cognition hubs in favor of pairing perception more directly with action". [2]

Genghis was not designed to have a central controller to direct all possible functions in the robot, particularly in the legs. Instead, each leg had its own built-in sensors that would sense the various obstacles in its path. Each leg was programmed with a few basic behaviors and knew how to react under different scenarios based on sensor feedback. The act of walking became a coordinated effort between all of the legs resulting in the robots movement. These processes exist independently, run at all times and fire whenever the sensory preconditions are true. [1]

Genghis was designed to navigate difficult terrain with many obstacles and elevations. In order to achieve this type of functionality while reducing overall complexity Brooks created a method of finite state machine thought which relied on "layered processing"; a basic layering of new traits over older ones. [2] In Genghis the control system was organized into "eight incremental layers: Stand up, Simple Walk, Force Balancing, Leg Lifting, Whiskers, Pitch Stabilization, Prowling and Steered Prowling". [1] On a processing level the complexity of each of the eight layers of the final movement are addressed separately by each layer, reducing the burden of complex processing from the processors at each level. [2]

Genghis now resides in the Smithsonian Air and Space Museum.

Related Research Articles

Subsumption architecture is a reactive robotic architecture heavily associated with behavior-based robotics which was very popular in the 1980s and 90s. The term was introduced by Rodney Brooks and colleagues in 1986. Subsumption has been widely influential in autonomous robotics and elsewhere in real-time AI.

<span class="mw-page-title-main">Cog (project)</span>

Cog was a project at the Humanoid Robotics Group of the Massachusetts Institute of Technology. It was based on the hypothesis that human-level intelligence requires gaining experience from interacting with humans, like human infants do. This in turn required many interactions with humans over a long period. Because Cog's behavior responded to what humans would consider appropriate and socially salient environmental stimuli, the robot was expected to act more human. This behavior also provided the robot with a better context for deciphering and imitating human behavior. This was intended to allow the robot to learn socially, as humans do.

BEAM robotics is a style of robotics that primarily uses simple analogue circuits, such as comparators, instead of a microprocessor in order to produce an unusually simple design. While not as flexible as microprocessor based robotics, BEAM robotics can be robust and efficient in performing the task for which it was designed.

Bio-inspired computing, short for biologically inspired computing, is a field of study which seeks to solve computer science problems using models of biology. It relates to connectionism, social behavior, and emergence. Within computer science, bio-inspired computing relates to artificial intelligence and machine learning. Bio-inspired computing is a major subset of natural computation.

In the history of artificial intelligence (AI), neat and scruffy are two contrasting approaches to AI research. The distinction was made in the 1970s, and was a subject of discussion until the mid-1980s.

Behavior-based robotics (BBR) or behavioral robotics is an approach in robotics that focuses on robots that are able to exhibit complex-appearing behaviors despite little internal variable state to model its immediate environment, mostly gradually correcting its actions via sensory-motor links.

<span class="mw-page-title-main">Rodney Brooks</span> Australian roboticist

Rodney Allen Brooks is an Australian roboticist, Fellow of the Australian Academy of Science, author, and robotics entrepreneur, most known for popularizing the actionist approach to robotics. He was a Panasonic Professor of Robotics at the Massachusetts Institute of Technology and former director of the MIT Computer Science and Artificial Intelligence Laboratory. He is a founder and former Chief Technical Officer of iRobot and co-founder, Chairman and Chief Technical Officer of Rethink Robotics and is the co-founder and Chief Technical Officer of Robust.AI.

Embodied cognitive science is an interdisciplinary field of research, the aim of which is to explain the mechanisms underlying intelligent behavior. It comprises three main methodologies: the modeling of psychological and biological systems in a holistic manner that considers the mind and body as a single entity; the formation of a common set of general principles of intelligent behavior; and the experimental use of robotic agents in controlled environments.

Adaptable Robotics refers to a field of robotics with a focus on creating robotic systems capable of adjusting their hardware and software components to perform a wide range of tasks while adapting to varying environments. The 1960s introduced robotics into the industrial field. Since then, the need to make robots with new forms of actuation, adaptability, sensing and perception, and even the ability to learn stemmed the field of adaptable robotics. Significant developments such as the PUMA robot, manipulation research, soft robotics, swarm robotics, AI, cobots, bio-inspired approaches, and more ongoing research have advanced the adaptable robotics field tremendously. Adaptable robots are usually associated with their development kit, typically used to create autonomous mobile robots. In some cases, an adaptable kit will still be functional even when certain components break.

<span class="mw-page-title-main">Legged robot</span> Type of mobile robot

Legged robots are a type of mobile robot which use articulated limbs, such as leg mechanisms, to provide locomotion. They are more versatile than wheeled robots and can traverse many different terrains, though these advantages require increased complexity and power consumption. Legged robots often imitate legged animals, such as humans or insects, in an example of biomimicry.

Nouvelle artificial intelligence (AI) is an approach to artificial intelligence pioneered in the 1980s by Rodney Brooks, who was then part of MIT artificial intelligence laboratory. Nouvelle AI differs from classical AI by aiming to produce robots with intelligence levels similar to insects. Researchers believe that intelligence can emerge organically from simple behaviors as these intelligences interacted with the "real world", instead of using the constructed worlds which symbolic AIs typically needed to have programmed into them.

<span class="mw-page-title-main">Hexbug</span> Robotic insect toy automatons

HEXBUG is a brand of infrared and automaton toys developed and distributed by Spin Master. HEXBUG uses many elements found in BEAM robotics. First piloted in the US through RadioShack, HEXBUG is now sold in most major retail stores. The original HEXBUGs are based on six-legged arthropods but now come in several different varieties. The name "HEXBUG" relates to the six-sided packaging it is sold in, rather than to its number of legs.

A hierarchical control system (HCS) is a form of control system in which a set of devices and governing software is arranged in a hierarchical tree. When the links in the tree are implemented by a computer network, then that hierarchical control system is also a form of networked control system.

<span class="mw-page-title-main">Robotics</span> Design, construction, use, and application of robots

Robotics is the interdisciplinary study and practice of the design, construction, operation, and use of robots.

Some of the research that is conducted in the field of psychology is more "fundamental" than the research conducted in the applied psychological disciplines, and does not necessarily have a direct application. The subdisciplines within psychology that can be thought to reflect a basic-science orientation include biological psychology, cognitive psychology, neuropsychology, and so on. Research in these subdisciplines is characterized by methodological rigor. The concern of psychology as a basic science is in understanding the laws and processes that underlie behavior, cognition, and emotion. Psychology as a basic science provides a foundation for applied psychology. Applied psychology, by contrast, involves the application of psychological principles and theories yielded up by the basic psychological sciences; these applications are aimed at overcoming problems or promoting well-being in areas such as mental and physical health and education.

<span class="mw-page-title-main">4D-RCS Reference Model Architecture</span> Reference model for military unmanned vehicles to identify and organize their software components

The 4D/RCS Reference Model Architecture is a reference model for military unmanned vehicles on how their software components should be identified and organized.

The following outline is provided as an overview of and topical guide to robotics:

In artificial intelligence research, the situated approach builds agents that are designed to behave effectively successfully in their environment. This requires designing AI "from the bottom-up" by focussing on the basic perceptual and motor skills required to survive. The situated approach gives a much lower priority to abstract reasoning or problem-solving skills.

<span class="mw-page-title-main">LAURON</span>

LAURON is a six-legged walking robot, which is being developed at the FZI Forschungszentrum Informatik in Germany. The mechanics and the movements of the robot are biologically-inspired, mimicking the stick insect Carausius Morosus. The development of the LAURON walking robot started with basic research in field of six-legged locomotion in the early 1990s and led to the first robot, called LAURON. In the year 1994, this robot was presented to public at the CeBIT in Hanover. This first LAURON generation was, in contrast to the current generation, controlled by an artificial neural network, hence the robot's German name: LAUfROboter Neuronal gesteuert. The current generation LARUON V was finished in 2013.

<span class="mw-page-title-main">Elmer and Elsie (robots)</span> Robots built in the 1940s

Elmer and Elsie were two electronic robots that were built in the late 1940s by neurobiologist and cybernetician William Grey Walter. They were the first robots in history that were programmed to "think". Elmer and Elsie were often labeled as tortoises because of how they were shaped and the manner in which they moved. They were capable of phototaxis, which is the movement that occurs in response to light stimulus.

References

  1. 1 2 3 Brooks, Rodney A., Flynn, Anita M., "Fast, Cheap and Out of Control: A Robot Invasion of the Solar System", Journal of the British Interplanetary Society, 1989
  2. 1 2 3 4 Brooks, Rodney A., "Flesh and Machines: How Robots will Change Us", Splinter, 2 February 2015