支架压力监测数据分段拟合方法

Segment data fitting method for support pressure monitoring

针对支架压力监测系统应用于超长工作面时,受总线查询周期限制而难以兼顾监测支架压力中的突发奇异信号与数据实时传输的问题,提出一种支架压力监测数据分段拟合方法。该方法按照支架压力监测系统1个查询周期进行数据分段,在某个分段内如果数据量小于拟合系数量,则直接传输数据;如果数据量不小于拟合系数量,则进行数据的多项式拟合,获取拟合系数并只传输拟合系数。实验结果表明,该方法大大减少了传输数据量,又不丢失重要数据,同时实现了每个查询周期固定数据传输量,便于数据传输管理。

When support pressure monitoring system is used in over-length workface,it is very difficult to meet both demands of real-time transmission and capturing burst signals in the pressure because oflimitation of bus querying period.A segment data fitting method was proposed for support pressure monitoring.In the method,data is divided as a segment according to querying period of the system.If data amount in a data segment is less than amount of fitting coefficients,the data is transmitted directly.If the data amount is larger,data polynomial fitting method is used to fit the data,thus fitting coefficients are gotten and transmitted. The experimental result shows that the method reduces amount of data transmission significantly,reserves important information and fixes data transmission amount in each querying period for clear data transmission management.