For many years now, most manufacturers of vehicle tracking devices are essentially doing the same thing and offering customers more or less the same – a device that sends information about the current location of the vehicle, collecting a number of parameters, usually with additional sensors. OBD2 or OBDII opens a far greater possibility of collecting data from a PC (or ECU) – virtually through this port for diagnostics. For this purpose, various adapters based mostly on the ELM327 protocol and some suitable program for reading and displaying data are used. There are already vehicle tracking devices that integrate GPRS, GPS and OBD2 in various variants. Considering that we are developing our own vehicle tracking device, we have already moved into the realization of its improvement by adding and communicating possibilities through the OBD2 port. Completion of this project is expected soon. The technology we use will enable us to read a large number of data useful for vehicle monitoring that will be realized in phases. In this way, in the first phase, we will be able to read data such as: speed, engine load, vehicle speed, travel time and time with and without error reporting, the list of errors reported by the computer, the fuel level in% of volume , vehicle consumption in L / S, position of the accelerator pedal, engine temperature, start time of the engine, and the like. This is only part of the parameters that can be collected. Further development and amount of data will depend on the adoption of each of the individual protocols as well as the real needs of those who monitor their fleets – for example, the data exchange protocol in work machines, buses and heavy trucks can provide over 8,000 parameters!

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