Now Domino's have developed possibly the greatest use for robots yet - safe and secure pizza delivery in what the company claims is a world first.

The company is testing pizza delivery by robot in New Zealand, known as the Domino's Robotic Unit (DRU). The three-foot tall battery-powered unit contains a heated compartment for storing up to 10 pizzas, and is capable of self-driving up to 12.5 miles, or 20 km from a shop.

The robot sports sensors for detecting obstacles on its route, and customers are given a unique code to key into the pizza compartment once it arrives at their house to prevent thieves from trying to steal its goods en route.

It has been designed to drive on both roads and pavements, and will return to its store to recharge once the delivery has been completed.

"DRU is cheeky and endearing and we are confident that one day he will become an integral part of the Domino's family," the chain's New Zealand general manager Scott Bush said.

"He's a road to the future and one that we are very excited about exploring further."

Domino's and the New Zealand government are working towards a date for the trial to begin, although driverless vehicle regulations in the country are still being discussed.