US cell carriers are selling access to your real-time phone location data

Four of the largest cell giants in the US are selling your real-time location data to a company that you’ve probably never heard about before. In case you missed it, a senator last week sent a letter demanding the Federal Communications Commission (FCC) investigate why Securus, a prison technology company, can track any phone ‘within […]

MIT Invented a Tool That Allows Driverless Cars to Navigate Rural Roads Without a Map

In a paper posted online on May 7 by CSAIL and project partner Toyota, 30-year-old PhD candidate Teddy Ort—along with co-authors Liam Paull and Daniela Rus—detail how using LIDAR (a radar-like sensor that uses lasers instead of radio waves to measure distances) and GPS together can enable self-driving cars to navigate on rural roads without […]

Rethinking GPS: Engineering Next-Gen Location at Uber

Location and navigation using global positioning systems (GPS) is deeply embedded in our daily lives, and is particularly crucial to Uber’s services. To orchestrate quick, efficient pickups, our GPS technologies need to know the locations of matched riders and drivers, as well as provide navigation guidance from a driver’s current location to where the rider […]

Reduce GPS data error on Android with Kalman filter and accelerometer

One day I got a cool task to improve the accuracy of positioning and distance calculating based on GPS data on Android devices. After some research, I found that different GPS-receivers produce different errors. The accuracy of the GPS point can be influenced by buildings, big trees, various weather conditions and by the satellites configuration. […]