船体噪声多传感器实时数据采集系统实时性研究

Research on realtime date acquisition system of vessel nosise multisensor

和较简单的实时数据采集系统不同,船体由于布置了大量的传感器,所以,船体噪声实时数据采集系统的实时数据量非常庞大。如何解决在大量数据接收情况下,增强系统处理数据的实时性和系统资源的利用率是研究的一个关键问题。通过C语言编写的测试程序计算处理数据线程的运行时间,得出设置间隔时间采集的时间段,有效地解决了数据实时性问题。并通过分析计算得出ExtremeDB内存数据库需开设缓存的大小,解决了在系统资源紧张、硬件设施一定条件下系统资源冲突问题。通过测试数据的精度和资源的利用率证明方法的可行性。具有一定的借鉴和指导意义。

Comparing with simple realtime date acquisition system,vessel nosie multisensor have a large number of diffirents as there are many sensors in the vessel.It is an important problem that how to solve the date realtime.According the work what computing the thread time could get the time of interrupted date collection,sovle the question of date realtime,and get the memory size of ExtremeDB,solve the question of resource conflict in such circumstance that hardware facility finity.At last,the method is viable according the contrast of testing result.