WKR4

Intelligent Autonomous Six Legged Robot to Operate on Uneven Surfaces

Abstract:

This is an intelligent robot that can easily move on uneven surfaces too with the help of his six legs, and he can take its own decision in case of any obstacle. This robot is quite intelligent. Whenever an obstacle is detected, the robot changes his direction and moves forward.

Legged robots are well suited to walk on difficult terrains at the expense of requiring complex control systems to walk even on flat surfaces. But simply walking on a flat surface is not worth using a legged robot. It should be assumed that walking on abrupt terrain is the typical situation for a legged robot. With this premise in mind, we have developed a robust controller for a six-legged robot that allows it to walk over difficult terrains in an autonomous way; with a limited use of sensory information (no vision is involved). This walk controller can be driven by an upper level which need not be concerned about the details of foot placement or leg movements, taking care only of high level aspects such as global speed and direction.

This robot is powered by 9V rechargeable battery. The direction of the robot can be controlled by an RF remote. This can be moved forward and reverse direction using geared motors of 60RPM. Also this robot can take sharp turnings towards left and right directions. This project uses AT89S52 MCU as its controller.

The RF modules used here are STT-433 MHz Transmitter, STR-433 MHz Receiver, HT12E RF Encoder and HT12D RF Decoder. The three switches are interfaced to the RF transmitter through RF Encoder. The encoder continuously reads the status of the switches, passes the data to the RF transmitter and the transmitter transmits the data.

This project uses 9V battery. This project is much useful for mines detection and surveillance applications and also in fire factories and industries.

BLOCK DIAGRAM: Transmitter


Receiver:

Power supply:

Advantages:

  1. Not line of sight
  2. Not blocked by common materials: can penetrate most solids and pass through walls
  3. Longer range
  4. Not light sensitive
  5. Not as sensitive to weather/environmental conditions

APPLICATIONS:

Forest Applications

Agriculture

Mining.

Industries are using RF solutions for monitoring, control, process, inventory tracking, data links and bar code reading devices.

Commercial wireless applications such as door announcers, security and access systems, gate control, remote activation, score board and paging systems.

Automotive companies employing RF for wireless remote control, remote keyless entry and safety applications

Consumer products including electronic toys, home security, gate and garage door openers, Intercom, fire and safety systems, and irrigation controllers.

Hyderabad: Tarakarama Estates, 2ndLeft Lane – Opp. RS Brothers, Ameerpet, Hyderabad-500073