Automobile's power system telemetry

A paper is devoted to diagnostic system of automobile power supply based on remote control using Internet. It consists of the detailed description of an automated measurement chain with specific focus on particular parts of the measurement network. There is also an algorithm of using Internet as measurement bus designed to serve as wireless communication interface. The aim of the paper is also to introduce a specific automated measurement network designed to diagnostics and evaluation of automobile power supply system. 1. Background In recent years, automotive industry becomes very influential, and not only in the economics of Slovak Republic. The trends in development brought also new requirements for diagnostic systems and subsequent error detection. Normally these two processes focus on hidden mistakes and errors that happen while automobiles are commonly used on daily basis. Therefore, there is a demand to develop a diagnostic system of power supply of automobile that enables to measure disorders of power supply system. Data measured would be thanks to Internet sent to expert system that will process the data and tries to detect the reason why error has occurred. It is necessary to point out due to fact that it is a newly developed algorithm of measurements it is not possible to connect the automobile to metallic communication network. Therefore, only wireless technologies are applied in the process of measuring. They are based on mobile network GSM and wireless network Wifi. Both networks enable to connect the measurement apparatus positioned in the automobile to the Internet and allow to measure real time. It is necessary to underline that above mentioned technologies have disadvantages that can cause loss of measured data. For this reason long lasting data acquisition is needed to eliminate certain failures.