3results about How to "Improve filtering efficiency" patented technology

The application discloses a filter and a synchronization signal processing method. The filter comprises a first filter set and a second filter set; input ends of the first filter set and the second filter set are connected to a signal sampling component; output ends of the first filter set and the second filter set are connected to a filter output end; the signal sampling component is used for collecting a double-sampling-point communication signal and transmitting the communication signal to the first filter set and the second filter set; the first filter set is used for receiving a first communication signal and filtering the first communication signal to obtain a first filtered signal; the second filter set is used for receiving a second communication signal and filtering the second communication signal to obtain a second filtered signal; and the filter output end is used for coupling the first filtered signal and the second filtered signal to obtain a final filtered signal. According to the embodiment of the application, the downsampling is realized while the filtering precision is ensured, and the operation amount is reduced.

The application discloses a kind of permanent magnet synchronous motor intelligent control device, it is related to motor control technical field to solve the problem of lower filtering efficiency of existing permanent magnet synchronous motor control device.A kind of permanent magnet synchronous motor intelligent control device includes: permanent magnet synchronous motor and intelligent controller;Intelligent controller is installed in permanent magnet synchronous motor intelligent control device with permanent magnet synchronous motor;Intelligent controller is connected with permanent magnet synchronous motor communication;Intelligent controller is used to control permanent magnet synchronous motor;Intelligent controller is installed with adaptive current filter;Adaptive current filter uses improved LMS algorithm to filter the current of permanent magnet synchronous motor;Improved LMS algorithm adds correction parameter;Correction parameter is used to dynamically adjust the weight of weight update function in improved LMS algorithm.The application is used to improve the filtering efficiency of permanent magnet synchronous motor control device.

The utility model provides a swing type screening device of plastic recycling, including the blanking base, the bottom rotation of blanking base is connected with the rotating base, and the rotating base bottom is equipped with the discharge gate, the eccentric position of rotating base bottom is arranged to the discharge gate, the below of blanking base is equipped with the filter screen frame, is equipped with the filter screen mesh plate on the filter screen frame, the top of filter screen frame is equipped with the material shifting guide plate. The utility model discloses through the work of control motor support, makes the output shaft on motor support so is equipped with the drive gear and the external gear that the rotating base upper end sets is engaged transmission, drives the rotating base to rotate, thereby the rotating change position of the discharge gate that rotating base bottom sets, in the process that material is along the discharge gate guide and falls, makes the falling track of material to rotate swing, thereby effectively even the material is scattered on the filter screen mesh plate top, improves the screening efficiency of filter screen mesh plate.