COMMUNICATION NETWORKS IN CARS

Diplomsko delo se osredotoča na računalniška omrežja in protokole, ki se uporabljajo v avtomobilski industriji. Posebej opišemo CAN, LIN, FlexRay in MOST vodila. Ogledamo si primere uporabe CAN vodila v osebnem vozilu Volvo XC 90, transportnem vozilu znamke Scania ter čolnu ameriške vojaške mornarice. Za komunikacijo s CAN vodilom v vozilu uporabimo tolmača ELM327 v1.5 OBD/Bluetooth, ki ga priključimo na OBDII priključek vozila. Ukaze posredujemo tolmaču preko posebej izdelane programske opreme, ki jo napišemo v programskem jeziku C#. Z izdelano programsko opremo lahko preverjamo in/ali spremljamo različne lastnosti vozila, kot so identifikacijska številka vozila, število vrtljajev motorja in prevožena razdalja.This work deals with computer networks and protocols in the automotive industry. The CAN, LIN, FlexRay and MOST buses are described in more detail. As example applications of the CAN bus we consider the passenger car Volvo XC 90, Scania transport vehicles and an US Navy boat. To communicate with the CAN bus of a vehicle we use the ELM327 v1.5 OBD/Bluetooth interpreter. We send the commands to the interpreter through specially designed software written in C#. This software can check and/or monitor various vehicle characteristics such as the vehicle identification number, engine speed and the distance travelled