Method and device for integrated processing of active cell position signal

Abstract

The invention discloses a method for integrated processing of an active cell position signal. The method comprises the following steps: acquiring a reference position signal and a real-time position signal of an active cell by a position sensor, and successively carrying out filtering, noise eliminating, frequency discrimination and frequency multiplication processing on the real-time position signal; carrying out missing judgment on a processed signal; if missing exists, compensating the missing; if no missing is found, carrying out delay judgment; if delay occurs, carrying out delay compensation; and if the delay does not occur, acquiring the moving direction and the real-time displacement of the active cell by combining with the reference position signal. The invention also discloses adevice for integrated processing of the active cell position signal. The method and the device disclosed by the invention have the advantages that multipath active cell position signals from the sensor can be accepted, the processed position signal is transmitted to a superior controller and precise control of a linear motor is realized.

Description

technical field [0001] The invention belongs to the technical field of signal processing, and in particular relates to a device and method for comprehensive processing of mover position signals. Background technique [0002] In the long-distance, high-thrust lifting system and linear motion system, the traditional rotary motor needs a transmission conversion device to output linear motion, and the linear motor can directly output linear motion due to its special structure, making it more and more widely used. . In order to realize the precise control of the linear motor, it is necessary to accurately detect and effectively process the position signal of the mover, especially in the closed-loop control system, it is particularly important to feed back the position signal of the mover accurately in real time. [0003] In order to effectively process the position signal of the mover, many scholars at home and abroad have proposed different processing methods over the years, al...

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Problems solved by technology

Scholars from the School of Electrical Engineering and Automation of Anhui University used high-speed cameras to collect images of adjacent fences, so they proposed an image mean square error processing algorithm based on the gradient method, a phase correlation algorithm based on multi-peak fitting, and a phase correlation algorithm based on singular value decomposition To obtain the position information of the mover, the moving speed of the mover is only between 0-1m / s during the test. This method has complex algorithms and poor real-time performance, and the image information it collects is vulnerable to motor vibration and dust. It is difficult to meet the position control requirements of high-speed motors in high-power and harsh environments

In 2015, Wang Qingyu of the Naval University of Engineering and others proposed a processing method for the position signal of the mover for the segmented linear motor. It obtains a set of orthogonal encoding signals through the sensor array, and performs digital filtering on the orthogonal encoding signals. , and then obtain the real-time position of the mover through the orthogonal algorithm, but it adopts a segmented signal transmission method, the signal needs to be transmitted and processed step by step, and the dependence between each unit increases, which is not conducive to the modular development of the equipment, and the resulting The increase in the number and volume of system equipment does not meet the development direction of equipment integration

[0004] At present, there are many domestic methods for moving element position detection and signal comprehensive processing, but it is still rare to be applied in a special environment such as electromagnetic emission with long distance and high thrust. There is a big difference between the mover position detection and signal processing of linear motors

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