Bees wearing wireless sensors create a "living Internet of Things platform"

While researchers continue attempts to build practical insect-size flying robots, engineers at the University of Washington have prototyped a backpack for real bees that outfits the insects with sensing, computing, and wireless networking capabilities. From UW News:

"We decided to use bumblebees because they're large enough to carry a tiny battery that can power our system, and they return to a hive every night where we could wirelessly recharge the batteries," said co-author Vikram Iyer, a doctoral student in the UW Department of Electrical & Computer Engineering...

Because bees don't advertise where they are flying and because GPS receivers are too power-hungry to ride on a tiny insect, the team came up with a method that uses no power to localize the bees. The researchers set up multiple antennas that broadcasted signals from a base station across a specific area. A receiver in a bee's backpack uses the strength of the signal and the angle difference between the bee and the base station to triangulate the insect's position...

Next the team added a series of small sensors - monitoring temperature, humidity and light intensity - to the backpack. That way, the bees could collect data and log that information along with their location, and eventually compile information about a whole farm...

"Having insects carry these sensor systems could be beneficial for farms because bees can sense things that electronic objects, like drones, cannot," Gollakota said. "With a drone, you're just flying around randomly, while a bee is going to be drawn to specific things, like the plants it prefers to pollinate. And on top of learning about the environment, you can also learn a lot about how the bees behave."