Robopocalypse Comes to Agriculture...in Australia

A robot effortlessly plucking fruit is some way off, though a range of simpler tasks are within reach to add to existing technology such as automatic steering of harvesters.

Salah Sukkarieh, Professor of Robotics and Intelligent Systems at the University of Sydney and developer of Mantis and Shrimp, says the next phase aims for robots to do increasingly complex jobs such as watering and ultimately harvesting.

"We have fitted them with a lot of sensors, vision, laser, radar and conductivity sensors - including GPS and thermal sensors," said Sukkarieh, speaking at his laboratory housing a collection of both ground robots and unmanned air vehicles.

The technology could have the biggest application in horticulture, Australia's third-largest agricultural sector with exports of $1.71 billion in the last marketing year, since a fixed farm layout lends itself better to using robots.

Robots and an unmanned air vehicle that are being developed at the University of Sydney had passed field tests at an almond farm in Mildura, Victoria state, said Sukkarieh.

Propelled by sets of wheels and about the height of a man, the robots were named after the native Mantis shrimp because of the marine crustacean's 16 different color receptors, capable of detecting up to 12 colors. Humans only have four, three of which pick up colors.

This capacity to recognize color already allows the robots to sense whether fruit is ripe.

The data can then be processed by computer algorithms to determine what action the robot should take. This could be to water or apply fertilizer or pesticides, or to sweep and prune vegetation, and eventually the aim is to harvest the crop.

"If tomorrow we got an apple, orange or tomato farmer that wants a robot to go up and down these tree crops reliably and accurately, we can do that within six months to a year."

"The question is can we make them more intelligent," added Sukkarieh, who also sees the technology being attached to standard farm vehicles and foresees a fully automated horticulture farm within 10 years.