Calibration method of electric proportional handle for environmental protection drilling rig

Abstract

The invention provides a method for correcting an electrical proportional handle for an environmental protection drilling rig. The system hardware includes a proportional handle, a controller, and a display; the correction method includes the following steps: S10, initially powering on the system; S20, when the proportional handle is at the median signal value MID , preset the median dead zone value DEAD and the fluctuation value WAVE to correct the median signal value MID of the proportional handle; , the preset offset value DIFF is used to correct the first signal value MIN or the last signal value MAX of the proportional handle respectively. It can automatically judge the effectiveness of the handle, automatically track the drift of the handle's median signal, and ensure the consistency of the handle's operating feel; the simple calibration of the minimum and maximum values ​​of the handle simplifies the operation process and reduces the difficulty of operation. work efficiency.

Description

technical field [0001] The invention relates to the field of soil drilling rig equipment, in particular to an electric proportional handle correction method for an environmental protection drilling rig. Background technique [0002] Existing sampling rigs are generally equipped with two proportional handles on the local operation panel to control the left and right crawlers respectively. The proportional handle is generally in the form of single-axis self-resetting analog voltage output. The typical output range is 10-90% of the 5V supply voltage, and the median is 50%. Due to the difference in the performance parameters of the proportional handle, the handle of the same model will have slight differences in the middle, the front and the end (the typical value is ±2% of the supply voltage). For single-axis proportional handles, some models not only output the analog voltage signal of the handle position, but also have switch signals for neutral position and forward / backward...

AI Technical Summary

Problems solved by technology

[0005] (1) It is necessary to manually input parameters on the display, and in order to protect the parameters from being modified by unauthorized personnel, password protection is generally set up, and modification is more troublesome

[0006] (2) There is no automatic tracking and correction function for the handle parameters, and the parameters can only be modified manually

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