Smart solution for emergency call in cars

This bechoral thesis is focused on design and realization of initial device prototype, which will be able to retrofit older vehicles with the system for emergency calling similar to eCall. Retrofitting is done by connecting the device to the diagnostic connector OBD. First part of thesis describes basic technologies used during device design, as CAN bus, dignostic connector OBD-II, communication protocols used in automotive industry or evaluation method for crash etc. Also there are described general requirements for this device according to European Union directives. Practical part of thesis is aimed at realization of vehicles electronic cotrol unit emulator needed for development. Then there is described device design, where are chosen components like GPS module, GSM modem, accelerometer and development board for control of entire device. Last part of thesis is focused on realization of device prototype. As main component of entire device was chosen development board NUCLEO-F103RB, made by manufacturer STMicroelectronics. During software development were used HAL libraries from this manufacturer. Also were created two new libraries. First library called CAN_data_load is used for communication between vehicles electronical control unit emulator by CAN bus interface and subsequent data processing and second one called GPS_load_control for data acqusition from GPS module and their processing. Finally there is described commissioning and service of created experimental workplace with realized prototype device. For this procedures were created additional instructions