How the circuit works
Before we can get into the nuts and bolts of how the interface circuit functions, we must look at the binary information output by the speech recognition circuit. The output of the speech recognition circuit consists of two 4bit binarycoded decimal (BCD) numbers. This binary (BCD) information is shown on the speech circuit’s two-digit digital display. Whenever a word is detected, the circuit uses the digital display to output the word number it has recognized, or else it outputs its unrecognized/error code. If the word detected is not recognized,…
Speech Recognition Circuit
The speech recognition circuit is available as a kit from Images SI Inc. You can purchase the main components, HM2007, SRAM, and printed circuit boards separately if you like and build from scratch. The kit takes a modular approach and uses three separate printed circuit (PC) boards. The three PC boards are…
Speech Recognition
In the near future, speech will be the method for controlling appliances, toys, tools, computers, and robotics. There is a huge commercial market waiting for this technology to mature. Our speech recognition circuit is a standalone trainable speech recognition circuit that may be interfaced to control just about anything electrical. The interface circuit we will build in the second part of this chapter will allow this speech recognition circuit to control a variety of electrical devices…
Hexapod Walker
Legged walkers are a class of robots that imitate the locomotion of animals and insects, using legs. Legged robots have the potential to transverse rough terrains that are impassable by standard wheeled vehicles. It is with this in mind that robotics are developing walker robots. Imitation of Life Legged walkers may imitate the locomotion style of insects, crabs, and sometimes humans.…
Braitenberg Vehicles
In 1984 Valentino Braitenberg published a book titled Vehicles—Experiments in Synthetic Psychology. In his book Valentino describes a number of wondrous vehicles that exhibit interesting behaviors based on the use of a few electronic neurons Similar in concept to Walter’s seminal neural work with his robot tortoises, Valentino’s vehicle behavior is more straightforward, making it somewhat easier to follow both theoretically and logically. This also makes it easier to implement his ideas into real designs for robots. In this chapter we will build a few Braitenberg…
Architecture of Hybrid Position/Force Control System
Based on Mason’s Principle, a hybrid position/force control system can be constructed…
Lagrangian Formulation of Robot Dynamics
Lagrangian Dynamics In the Newton-Euler formulation, the equations of motion are derived…
