ALARM AND MONITOR DEVICE OF DIESEL ENGINE STATUS WHICH IS ENABLE TO MEASURE MULTI-CHANNEL TEMPERATURE AND PRESSURE SIGNAL

摘要

PURPOSE: A diesel engine state checking and warning device for measuring multi-channel temperature and pressure signals is provided to measure the temperature state value regardless of the kind of sensor or a pressure state value. CONSTITUTION: A diesel engine state checking and warning device for measuring multi-channel temperature and pressure signals comprises a multiple channel input part(30), a filter part(50), a rectifier(60), a micro processor unit(90) and a communication interface part(100). The multiple channel input part has OCP(Over Current Protect) circuit preventing the excess current. The noise component including the high frequency and noises is eliminated by the filtering part. A terminal part blocks the excess voltage over than the fixed voltage and the negative voltage according to the specified A/D converter input range. The micro processor unit changes a sensor sensing signal into the digital state output. The communication interface part transmits and receives the desired data according to a protocol.