32 results about "Evolutionary learning" patented technology

The invention provides an evolutionary learning method for intelligent monitoring of cutter states. A three-way acceleration sensor and a microphone are utilized to collect vibration signals and acoustic signals, the signals carries out smoothing, and the signals are divided into a training set and a test set; deep-level features of the dynamic signals are automatically extracted using a stacked auto-encoder, and extracted features are classified; according to the accuracy of a training set model, an algorithm carries out weight distribution, the final predicted cutter state is obtained through weighted averaging, and model related parameters are saved; and the real-time vibration signals and the acoustic signals in the actual machining process are preprocessed and then input into a savedmonitoring model, the cutter state of the corresponding signals is obtained, the data label with the higher confidence level is stored, and the network parameters are updated so as to realize the evolution learning of the cutter state intelligent monitoring. According to the method, manual participation can be avoided, the calculation complexity is reduced, and the influence of machine cutter performance degradation on the prediction accuracy of the cutter state monitoring model can be weakened.