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For folks who cringe at the words, "Can we have a puppy?" these interactive robots provide the companionship and entertainment value of animal ownership without the fuss and bother of predawn walks or potty training accidents. They walk, bark, play fetch and more, helping their young owners learn how to care for a real dog -- while keeping the furniture free of hair and chew marks.
How Robots Work
Despite the obvious differences, robots and humans actually have similar components. In the most basic sense, humans have five major elements: a body, a muscle system to move the body, a sensory system for receiving information, a power source which activate the systems, and a brain to process information and send commands to the body parts.
Looking at how robots are built, we can see a similar system in action. Every kind of smart robot needs a minimum of five of these basic components to function. Whatever the shape may be, robots have some form of a body or structure. They also have motors to power the body's movement, which can be equated to the muscles of a human.
Smart robots also feature some kind of sensory system responsible for gathering data. This is often a combination of sensors and cameras. There needs to be a power source of some kind as well. In robots this is often a battery, whereas in humans it can be considered the heart. And finally there is a brain, or in the case of robots a microchip processor to control all of the components.
When all of these components are incorporated into a robotic dog, we wind up with a futuristic four-legged companion that can learn from us, react to its surroundings, and even develop some form of personality. Most robotic dogs have sensors that allow them to react to a person's hand gestures and voice commands. Depending on the model, you may be able to tell the robotic dog to sit and it will perform the command just like a real dog. Others may perform tricks like back flips and rolling over at the wave of its owners hand. Some of the models designed for children are a little more playful and will dance if their human counterpart starts dancing or start barking if the child begins to sing.
Many robotic dogs also have sensors that allow them to respond to touch. Their tail may start wagging or their eyes may open up wider when being pet. Just like a real dog, most robotic dogs use their eyes and body language to communicate their mood. If sad, they may move a little slower and slump down. When tired their eyes will often be half closed. The models that have integrated microphones respond to being called and will come running, or rolling, up when their name is called or their owner walks into the home.
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