FPGA在油气管道泄漏噪声监测系统中的应用

APPLICATION OF FPGA TO NOISE MONITORING SYSTEM FOR PIPELINE LEAK

管道泄漏监测与控制技术已经成为管道安全运行的关键问题。目前人为破坏导致的管道泄漏已占相当的比例。管道在运行过程中有正常的运行噪声和环境因素产生的噪声 ,也有管道泄漏和在管道上从事破坏活动所产生的噪声。如何实现对不同噪声信号的精确采集 ,并将采集到的信息实时进行数据传输 ,是对管道泄漏点进行准确定位 ,确保管道安全运行的关键问题。运用现场可编程门阵列 (FPGA)所具有的巨大的I/O带宽和高速的运算能力 ,实现了对噪声监测系统的设计。系统以FPGA为核心 ,将数据采集、数据存储处理及数据通信等功能模块 ,集成在一块FPGA内 ,大大提高了系统的集成度。实现了实际意义上的片上可编程系统 (SOPC)。经过测试证明了系统工作稳定可靠 。

Monitoring and controlling technique for pipeline leaking are a key issue that must be settled in pipeline's safe operation. Now pipeline leaking caused by man-made damage has been of a considerable percentage. During pipeline operation, the noises probably result from normal operations, environmental factors, or pipeline leaking, or even from the on-purpose demolishment. How to precisely acquire different noise signals and to implement real-time data transmissions is a key problem in identifying the properties of noise signals in pipeline operation, precise locating of leaking points, and ensuring pipeline's safe operation. Utilizing the large I/O bandwidth and high speed arithmetic capability of field programmable gate array (FPGA),a noise monitoring system was designed. With field programmable gate array (FPGA) as its core part, the system integrates the functional modules including data acquisition, data storage and data communication into a single piece of FPGA, and integration level of system is greatly upgraded. It takes the system of a programmable chip(SOPC)into practice. The system is stable and reliable, and the design requirement is fulfilled.