Adapted from: http://www.digitaljournal.com/article/235226
Posted Sep 30, 2007 by ■ geozone
So just how does this hi-tech setup work? The bees are trained to recognize specific odors such as explosives and associate that smell with a food reward. Once the association has set in, the bees automatically extend their tongues out in expectation of food.
The bees are then securely and comfortably strapped inside a "black box" detector. If they detect the odor they have been trained to recognize in a sample of air, they stick out their tongues. In turn, a camera inside the box picks up how the bees react and relays this to image recognition software. The software converts the bees' response into an electronic signal as yes (green light) or no (red light) depending on whether they stick out their tongues or not.
According to Insentinel, this technology offers many advantages. It takes very little time to train the bees, it is very cost effective and statistically reliable.
Outside of security screening, the company has also deployed honeybee olfactory technology to detect counterfeit goods, smuggled goods such as tobacco and alcohol and maintain quality control in food through detecting spoiled produce. The bees have even been trained in the early diagnosis of diseases such as cancer through picking up scents in the breath, blood and urine.
By using a range of bees trained to detect different scents, Insentinel promises to extend the capabilities of its black box detector to screening multiple substances in the future. for example, bees are being used in Croatia to find land mines.
The company also assures the bees are completely unharmed and comfortable throughout their sniffing tasks. Apparently bees work effectively only if they are healthy. Upon completing their "work shifts," the bees are returned to their hive where they readily integrate back and live happily ever after.
See a video showing how sniffer bees are trained and used tomorrow.
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