t-box

The T-Box or Tumarc Telematics Gateway is a black box device that connects to the vehicle network, and communicates with the outside world via a choice of wireless technologies. Essentially a dedicated computer, it interacts with diagnostics enabled ECUs on the vehicle through the manufacturer's diagnostic interface, and the Onboard Diagnostics (OBD) interface. The device provides a number of functions:

• Access Diagnostic Trouble Codes (DTCs), and Parameter Identifiers (PIDs) from ECUs
• Write data to ECUs to configure or update ECUs software
• Activate on-board diagnostic routines and ECU self-tests and commands
• Report module data to external web services

The T-Box captures and forwards core information, using 'data push-up' techniques, on various aspects of the vehicle to assist in its lifecycle management.T-Box can be viewed as a service broker between the car and the outside world and vice versa, capable of publishing to web services which others can use, and allowing companies to integrate their value chain.

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