Based on self-learning dictionary circuit board fault diagnosis device

In the classical fault dictionary fault detection method based on the law, a microcontroller-based self-learning fault dictionary method for the circuit board fault detection. At the same time designed to microcontroller-based self-learning fault detection dictionary diagnostic software as the core, coupled with signal detection circuit, precision rectifier circuit, phase detection circuit, the linear optical isolation circuit, sample and hold circuits, liquid crystal display circuit and alarm circuit consisting of detection devices. The device in the depth of a certain type of ship steering instrument on the experimental results are shown that the device is reliable and stable and accurate.