Movable machinery non-contact walking address precision correcting method

Abstract

The invention discloses a moving machine non-contact running address accurate adjustment method. In the method, when a reading head controller which is arranged at a travelling machine moves together with the travelling machine, and when an address reading head in the reading head controller does not process the address adjustment temporarily after receiving a position code until a fixed-point marker detector in the reading head controller detects a fixed-point marker which is fixedly installed on the ground, a received signal is sent to a CPU microprocessor of the controller, and the same time, an adjustment command is output to an output processing circuit for outputting. When a travelling machine control apparatus is at the rising edge of the adjustment command, an absolute address code output by the output processing circuit is used for processing the address adjustment. The invention uses a fixed-point marker accurate adjustment technology, thereby avoiding the disadvantage of the large adjustment error of the non-contact moving address adjustment device of the prior technology and ensuring that the non-contact moving address adjustment technology can be applied to the occasion of the position detection of the machine with long distance and high precision travelling work.

Description

technical field [0001] The invention relates to a non-contact running address correction method for a mobile machine, which is mainly used for correcting the running address detection error of a long-distance running working machine on a track. Background technique [0002] Some automatic or non-automatic working machinery such as: raw material stacker, reclaimer, port ship unloader and other working machinery. They need to carry out long-distance reciprocating walking on the track during work, and the walking address and working position need to be measured, controlled and displayed due to control or observation. Whether the measured address data is correct or not directly affects the work of the machine, especially some automatic control working machines that require high accuracy of the walking address. [0003] The travel address measurement technology of the existing walking working machines generally uses a travel encoder or travel pulse counting for measurement. The...

AI Technical Summary

Problems solved by technology

However, due to the long distance of non-contact code reading, there is a defect that the calibration accuracy is not high

This device performs calibration when the antenna coil of the reading head enters the readable range of the integrated non-contact read-only card. Since the non-contact read-only card has a large non-contact readable range, the calibration accuracy is not high, and the error is at least 5 cm

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