BEAM ROBOTS

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Beam Robotics and Nervous Networks (EMERGING TREND IN ROBOTICS) SIREESHA VANI

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BEAM ROBOTICS BEAM is an acronym standing for... B IOLOGY E LECTRONICS A ESTHETICS M ECHANICS

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One of the simple beam bots (with legs) is shown below : Motor Legs Solar panel

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Some of the great children of this philosophy are… The Walker – can walk or run using 2 legs.

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The MobyThe Twalky :

NERVOUS NETWORKS: 

NERVOUS NETWORKS The Nervous Network is an interconnection of basic elemental circuits called the ‘Pulse Delay Circuits’ The pulse delay circuit acting like a neuron, generating a square wave and hence functioning as an oscillator. The most significant characteristic of nervous network is the absence of microprocessors and other complicated circuitry to enable locomotion.

PROBLEMS IN CONVENTIONAL ROBOTS: 

PROBLEMS IN CONVENTIONAL ROBOTS To date the most successful designs have involved wheeled devices. However, wheeled devices have very limited utility in many environments . Autonomous legged creatures, to move and react effectively within their environment. Until now, all attempts to create such a device have involved elaborate arrangements of feedback systems utilizing complex sensor inputs. Extensive control and sequencing circuitry hard-wired to one or more central processors.

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SOLUTION The nervous technology overcomes the given problems and other disadvantages by providing a completely different control system approach. Rather than utilizing a central processor to process sensor information and responsively drive all mechanical processes. The device of the robot utilizes a reconfigurable central network oscillator to sequence the processes of the devices limbs. The nervous technology further provides a pulse delay circuit , with a delay of variable duration, which connected to a second pulse delay circuit acts as an artificial "neuron".

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The nervous network is made of basic elemental circuit called the pulse delay circuit (neuron). The neuron diagram is given below.

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PULSE NEUTRALIZATION CIRCUIT AND CENTRAL SEQUENTIAL CIRCUIT

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LIMB CIRCUIT

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RESULTS The application of nervous networks in robotics to nullify complex circuitry in the control of the locomotion of the robot has been achieved. It will be apparent that a walking device embodying the nervous network will have applications in many industries. Such a walking device could patrol secured premises with a video camera transmitting signals to a remote recorder Equipped with a brush it could perform simple household chores such as dusting and cleaning floors

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The future of BEAM is brighter as a clear sky sun. New walking mechanisms touch and vision systems. Eventually, the B.E.A.M. robot cists hope to see all sorts of tiny robotic creatures lurking in the shadows of our lives. Swarms of B.E.A.M. bots could cut, vacuum your home and workplace scrub out toxic chemical tanks, hunt down insect pests, re-seed the rain forest. FUTURE OF BEAM ROBOTS CONCLUSION

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BOOKS: Robotics & Automation - Mark. W. Tilden and Electronics for you – Magazine. RESOURCES : www.solarbotics.com www.beam-online.com www.beam-india.solarbotics.net REFERENCES

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