Telematics: Interactive Display UsingWireless Communication

Jimmy Su

Team Whitney

April 29, 2002

Wireless Communication System

• Allows communication between Whitney and separate vehicles/computers

• Processes the data using Visual Basic programming

• Displays the data through a Graphical User Interface

E

Wireless Communication System

Two RF Transceivers that transmits and receives wireless RS232C Data

Process: One Transceiver accepts RS232c data and converts the data to Radio Frequency. The other Transceiver receives the RF data and converts it back to RS232c

Wireless Transceiver: Specifications

OTEK TR200 Series Transceivers

• 100/300 feet range

• 916.5 MHZ Operating Frequency

• Transmission Rate of 19,200 BPS

Wireless Transceiver: Circuit Diagram

Wireless Communication: Protocol

Sender’s Protocol

• Proprietary software made by OTEK, manual input that runs on DOS

Receiver’s Protocol

• Program developed in C that parses control and input data, reads and writes to the serial port

Interactive Display: Visual Dashboard

Purpose: To display real-time information from Whitney to a computer on a separate vehicle

Visual Dashboard: State Algorithm

Start

ProcessData

GetInput

End

LoadForm User presses GO

End of

Input

Telematics: Summary

• Wireless Communication proved to be successful, however the proprietary software became a limitation

• Visual Dashboard Interface can display the information from Whitney, what is the next step?

• Automotive Telematics has become the new trend in traveling: enabling safety, security, entertainment, and navigation