Featured Research

from universities, journals, and other organizations

Insect drives robot to track down smells

Date:
February 6, 2013
Source:
Institute of Physics (IOP)
Summary:
A small, two-wheeled robot has been driven by a male silkmoth to track down the sex pheromone usually given off by a female mate. The robot has been used to characterize the silkmoth’s tracking behaviors and it is hoped that these can be applied to other autonomous robots so they can track down smells, and the subsequent sources, of environmental spills and leaks when fitted with highly sensitive sensors.

A small, two-wheeled robot has been driven by a male silkmoth to track down the sex pheromone usually given off by a female mate.

The robot has been used to characterise the silkmoth's tracking behaviours and it is hoped that these can be applied to other autonomous robots so they can track down smells, and the subsequent sources, of environmental spills and leaks when fitted with highly sensitive sensors.

The results have been published 6 February, in IOP Publishing's journal Bioinspiration and Biomimetics.

The male silkmoth was chosen as the 'driver' of the robot due to its characteristic 'mating dance' when reacting to the sex pheromone of the female. Once the male is stimulated by the pheromone it exhibits a distinctive walking pattern: straight-line and zigzagged walking consisting of several turns followed by a loop of more than 360.

Lead author of the research, Dr Noriyasu Ando, said: "The simple and robust odour tracking behaviour of the silkmoth allows us to analyse its neural mechanisms from the level of a single neuron to the moth's overall behaviour. By creating an 'artificial brain' based on the knowledge of the silkmoth's individual neurons and tracking behaviour, we hope to implement it into a mobile robot that will be equal to the insect-controlled robot developed in this study."

The researchers, from the University of Tokyo, attached the silkmoth to a free-moving polystyrene ball at the front of the robot which was used for overall control, much like the ball in a computer mouse.

Two 40 millimetre fans were attached at the front to divert the pheromone-containing air to the on-board moth -- the researchers believe the fans are comparable to the wings of the silkmoth that flap to generate air flow across its antennae.

A 1800 millimetre wind tunnel was used in the experiments; the pheromone and robot were placed at opposite ends. Fourteen silkmoths were used in the study and all of them were able to successfully guide the robot towards the source.

The researchers also introduced a turning bias to the experiments, changing the power of one of the robot's two motors so it veered towards one side when moving. This put the silkmoth into an extraordinary situation and required it to adapt and change its behaviour.

"The best way to elicit adaptive behaviours of insects is to put them into extraordinary situations. The turning bias in our study is analogous to a situation in which we try to ride unbalanced bicycles. We need training to ride such bicycles smoothly but the silkmoth overcomes the situation with only simple and fast sensory-motor feedbacks," said Dr Ando. It is important that the chemical sensors attached to a potential robot have a short response and processing time when tracking down odours continuously, which is why the researchers also investigated the effect of a time delay between the movement of the silkmoth and the response of the motor.

"Most chemical sensors, such as semiconductor sensors, have a slow recovery time and are not able to detect the temporal dynamics of odours as insects do. Our results will be an important indication for the selection of sensors and models when we apply the insect sensory-motor system to artificial systems," continued Dr Ando.


Story Source:

The above story is based on materials provided by Institute of Physics (IOP). Note: Materials may be edited for content and length.


Cite This Page:

Institute of Physics (IOP). "Insect drives robot to track down smells." ScienceDaily. ScienceDaily, 6 February 2013. <www.sciencedaily.com/releases/2013/02/130205200128.htm>.
Institute of Physics (IOP). (2013, February 6). Insect drives robot to track down smells. ScienceDaily. Retrieved April 19, 2014 from www.sciencedaily.com/releases/2013/02/130205200128.htm
Institute of Physics (IOP). "Insect drives robot to track down smells." ScienceDaily. www.sciencedaily.com/releases/2013/02/130205200128.htm (accessed April 19, 2014).

Share This



More Computers & Math News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Nintendo Changed Gaming World, but Its Future Uncertain: Upstone

Nintendo Changed Gaming World, but Its Future Uncertain: Upstone

AFP (Apr. 19, 2014) The Nintendo Game Boy celebrates its 25th anniversary Monday and game expert Stephen Upstone says the console can be credited with creating a trend towards handheld gaming devices. Duration: 01:21 Video provided by AFP
Powered by NewsLook.com
Nearly Two Weeks On, The Internet Copes With Heartbleed

Nearly Two Weeks On, The Internet Copes With Heartbleed

Newsy (Apr. 19, 2014) The Internet is taking important steps in patching the vulnerabilities Heartbleed highlighted, but those preventive measures carry their own costs. Video provided by Newsy
Powered by NewsLook.com
Facebook To Share Nearby Friends Data With Advertisers

Facebook To Share Nearby Friends Data With Advertisers

Newsy (Apr. 19, 2014) A Facebook spokesperson has confirmed the company will use GPS data from the new Nearby Friends feature for advertising sometime in the future. Video provided by Newsy
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins