At JavaLand, we presented how to steer Anki Overdrive cars with IBM Bluemix via speech and gesture recognition. Since the cars send their position data to the cloud, we could also demonstrate a simple version of collision prevention.
The demo is available as open source and I documented it in a series of blog entries (see below). My colleague David Barnes interviewed me and created the video Driving Cars autonomously with IBM Bluemix. Thanks a lot, David!
Here is the high-level architecture with the main components IBM Bluemix, the Internet of Things platform, and MQTT.
Here is the series of blog articles about this demo.