Anti-interference method for optical fiber drawing towers

Abstract

The invention discloses an anti-interference method for optical fiber drawing towers, and relates to the technical field of information. The anti-interference method includes steps of computing deviation signals of interfered devices and the sizes of corresponding relevant parameters in previous periods and deviation signals of the interfered devices in current periods according to PID (proportion, integration and differentiation) algorithms; computing difference values of the deviation signals of the interfered devices in the previous periods and the deviation signals of the interfered devices in the current periods; judging whether the difference values are within preset ranges or not, computing the sizes of relevant parameters in the current periods according to the PID algorithms if the difference values are within the preset ranges, and setting values of the relevant parameters in the current periods as the sizes of the relevant parameters in the previous periods if the differencevalues are not within the preset ranges. The anti-interference method for the optical fiber drawing towers has the advantages that interference signals can be effectively removed by the aid of the anti-interference method, accordingly, the optical fiber drawing towers can stably run, and the production efficiency can be greatly improved.

Description

technical field [0001] The invention relates to the field of information technology, in particular to an anti-interference method for an optical fiber drawing tower. Background technique [0002] The optical fiber drawing tower mainly includes a coating system, a drawing furnace system, a main tractor system and an optical fiber take-up machine. [0003] Among them, applicator systems such as figure 1 As shown, the coating system is an important equipment in the optical fiber drawing tower process. The coating system coats the bare optical fiber with a protective resin to protect the optical fiber. The stable operation of the equipment is directly related to the production efficiency of the production line. The coating system consists of an applicator, a pressure controller (PC valve) and a pressure sensor. The output value P of the pressure controller 3 Follow-up set pressure value P 1 , the deviation signal is provided by the pressure sensor. [0004] If the tracking ...

AI Technical Summary

Problems solved by technology

[0011] Due to the unavoidable existence of various electromagnetic equipment in the fiber drawing workshop, electromagnetic interference will cause a series of false signals in the position signal of the dancing wheel, and then generate wrong deviation signals

The wrong deviation signal is fed back to the PID controller, and the wrong control signal will be generated, which will lead to the instability of the entire PID closed-loop system, and then stop production.

see figure 2 The position signal distribution diagram of the dance wheel in the figure, where A and B are false signals, these false signals will cause the calculated deviation signal to have a large jump, and then make the rotation speed of the optical fiber take-up machine in a short time. Very large jitter, this kind of jitter will cause the optical fiber to be pulled off, causing production shutdown failure, which is very unfavorable to production

Images