Abstract
The paper discusses the principles and shortcomings of the concrete mixer truck’s hydraulic control mechanism. The stepper motor technology controlled by the electrical impulses is used to develop a new digital display control device, and determine design principle and implementation process of the electronic control part. At the same time, it develops control device’s digital display mechanism and wireless remote control devices. At last, it compares the performance advantages and disadvantages between the traditional mechanical control handler and the digital display remote controller according to the engineering practice.
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