Robots Can Sniff Out Bad Breath And Smelly Feet

Robots Can Sniff Out Bad Breath And Smelly Feet

Kaori-chan and Shuntaru-kun assess their owner's bodily odors with snide remarks.

Leah Gonzalez
  • 8 may 2013

Japanese robot manufacturer CrazyLabo and Kitakyushu National College of Technology have come out with two robots, a female human and a dog, that can tell you without mincing words if your breath or feet smell bad.

Kaori-chan, which looks like a blue-eyed brunette female head on a box, analyzes people’s breath when they breathe in her face. She is designed to quantify the components found in their breath and assesses the smell on a scale from one to four. If she finds a person’s breath good, she says, ‘It smells like citrus!’ If her evaluation of the person’s breath is less than stellar, her remarks can range from ‘Yuck! You have bad breath!’ to ‘No way! I can’t stand it.’ If the person’s breath is in the worst category, her response is ‘Emergency! There’s an emergency taking place!’


Shuntaru-kun, the robot dog, smells a person’s feet and gives his evaluation by either nuzzling close to the person or barking and falling down to the floor and growling. If the smell of the person’s feet falls in the lowest category, the robot dog reveals this by passing out.


CrazyLabo equipped the robots with odor sensors similar to commercially available sensors to assess and quantify the components of odors and evaluate them.

According to an article about the robots on The Asahi Shimbun, the president of CrazyLabo, Kennosuke Tsutsumi, came up with the idea of creating robots that will make people laugh after the Great East Japan Earthquake in 2011. He met with Kitakyushu National College of Technology mechanical engineering associate professor,  Takashi Takimoto, and came up with the idea of Kaori-chan and Shuntaru-kun. Takimoto and his students collected odor samples and created computer programs to make the robots.

CrazyLabo is currently developing a Pinochio type of robot whose nose grows long when people tell lies.



Images via The Asahi Shimbun

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