NTT to roll out indoor navigation using smartphone sensors
Japanese mobile carrier NTT DoCoMo wants to go beyond GPS with a more granular smartphone navigation system for complex indoor spaces.DoCoMo has partnered with mapping company Zenrin DataCom to develop the navigation system that makes use of sensors in smartphones. It’s designed to help users find their way through Japan’s dense indoor spaces such as subway complexes or underground malls where GPS signals may not reach.Japan has some of the busiest and largest rail hubs in the world, with multiple floors, overlapping rail lines and subterranean shopping arcades. The new platform uses smartphone motion sensors to track direction when a user walks around. The data is plotted against preloaded maps from Zenrin, which supplies mapping apps for all DoCoMo mobile phones.To read this article in full or to leave a comment, please click here
In our last post, we looked at how Kubernetes handles the bulk of it’s networking. What we didn’t cover yet, was how to access services deployed in the Kubernetes cluster from outside the cluster. Obviously services that live in pods can be accessed directly as each pod has its own routable IP address. But what if we want something a little more dynamic? What if we used a replication controller to scale our web front end? We have the Kubernetes service, but what I would call its VIP range (Portal Net) isn’t routable on the network. There are a couple of ways to solve this problem. Let’s walk through the problem and talk about a couple of ways to solve it. I’ll demonstrate the way I chose to solve it but that doesn’t imply that there aren’t other better ways as well.