Today’s consumers expect their robot pets to be almost as good as the “robots” they see in 3D movies and games, and designers are working to provide entertaining and realistic gadgets that respond to human interaction in ever more nuanced ways, mimicking the behavior of real pets.
Building fully autonomous artificial creatures with intelligence similar to humans has been a long-term goal of robot design and computer science. On the road to creating such machines, consumers have enjoyed technological developments like the Tamagotchi digital pet, domestic toy robots like Aibo the robotic dog, and even Roomba, the robotic vacuum cleaner.
New design approach to robotics
Researchers in Taiwan are now looking at a new design paradigm that could see the development of a robot vision module that might one-day recognize human facial expressions and respond appropriately. The scientists have turned to neural networks to help them break the cycle of repetitive behavior in robot toys and to endow robots with an almost emotional-like response to their human interactions.
Scientists hope to adopt a behavior-based architecture approach – using a neural network – that could allow the owner of a robot pet to reconfigure the device to “learn,” or evolve new behavior, and at the same time ensure that the robot pet functions properly in real time.
In the meantime, similar to the Japanese company’s turn-of-the century Tamagotchi digital pet, Bandai recently unveiled the SmartPet which features the robotic body of a dog with the face of an iPhone. Users download a Smart Pet app that transforms their iPhone or iPod touch into the dog’s face and brain. The animated robotic dog will recognize its “owner” and can do more than one hundred tricks.
Robopets increasingly popular
Looking more like a stuffed animal than a robot, “Paro” takes the form of a soft, furry baby harp seal, and studies show it helps reduce stress for hospital and nursing home patients. Paro has five different sensors that allow it to perceive people, and varying emotions and environments. It also recognizes voice direction – responding to different names, greetings and praise.
Paro has been in use in Japan and throughout Europe since 2003, and was introduced to the U.S. in 2008, with the majority sold to individuals as a pet substitute, while 20 percent have been sold to nursing homes and schools.
Countless research teams across the globe are currently working on vision modules for robots. The technique is not yet fully mature, but ultimately one day they may build a robot pet that will recognize its owner’s facial expressions and perhaps respond accordingly. Once Rover and Kitty are replaced by robots, it’s only logical to assume humans are next.