Home helpers

Ecovacs was also exhibiting two robots designed to keep an eye on your home while you're out.

Famibot and Minibot can perform functions like roving around and purifying the air, alerting you if there's a fire or intruder, and sending your phone a video feed of your home.

They should hit U.S. markets in the first half of 2013, with Famibot having a suggested retail price of $899, and Minibot priced at $499.