Cellphone Vehicle Diagnostics II

Technology #15119

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System and method for providing road condition and congestion monitoringSystem and method for providing road condition and congestion monitoringSystem and method for providing road condition and congestion monitoringSystem and method for providing road condition and congestion monitoringSystem and method for providing road condition and congestion monitoringSystem and method for providing road condition and congestion monitoring
Categories
Inventors
Professor Sanjay Sarma
Department of Mechanical Engineering, MIT
External Link (meche.mit.edu)
Ajay Deshpande
Department of Mechanical Engineering, MIT
Stephen Ho
Department of Mechanical Engineering, MIT
Austin Oehlerking
Department of Mechanical Engineering, MIT
Managed By
Daniel Dardani
MIT Technology Licensing Officer
Patent Protection

US Patent Pending US 2012-0065871

Applications

This technology has applications in monitoring road traffic conditions using vehicle on-board diagnostics to augment traditional sources of information.  

Problem Addressed

Traditional means of determining traffic data and volume typically involved direct observation via various means. More recently, crowd sourcing GPS data has been used to monitor traffic automatically and in real-time. This approach has many deficiencies – GPS and Assisted GPS are inaccurate, GPS readings consume power and bandwidth, and GPS data is more suited to determining broader trends than localized information.

Technology

This invention describes a portable device that connects to vehicle on-board diagnostics and uses information about vehicle movement, acceleration and deceleration to determine traffic characteristics. Using this data, the device can also compute fuel consumption augmented by information about vehicle characteristics, like gearing. The device then transmits this processed information as smart messages containing rich data packets, as opposed to the current bandwidth-heavy approach of sending all gathered data. These messages are context-sensitive and take into account data on the server from other vehicles present in the vicinity before deciding on the size and content of the message it sends to the server.

Advantages

  • Context-sensitive smart messages use lower amounts of bandwidth
  • Higher accuracy of traffic data transmitted