大型养路机械（简称大机）的一种，适用于铁路线路的新线施工、既有线大中修清筛作业后和运营线路维修作业，对轨道进行自动抄平、起拨道、道碴捣固作业，提高道床石碴的密实度，增加轨道的稳定性，消除轨道的方向偏差，左、右水平偏差和前、后高低偏差，使轨道线路达到线路设计标准和线路维修规则的要求，保证列车的安全运行。
首先简单介绍了捣固车起拨道检测的原理，分析了起拨道补偿原理与补偿算法设计。
Firstly, the detection theory of lining and lifting is briefly introduced and the principle and algorithm of compensation are analysed.
以自动抄平起拨道捣固车的控制程序为例，介绍了多线程机制在工业控制领域的应用。
The paper takes the control programme of the tamper as an example, introducing the application of multi threaded mechanism in the field of industrial control.
捣固车是一种大型的铁路养路机械，其电气部分担负着各种作业的控制任务，是整车的大脑。
The rammed car is a kind of large-scale road maintenance machinery in railroad, and its electricity section shoulders the control tasks of all the works and is the cerebrum of the vehicle.
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