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蔡永军
1
,陈朋超
1
,郑
娟
1
,谭东杰
1
,柳
文
2
,费雪松
2
,武加利
2
(1.中国石油管道研究中心
,河北廊坊
065000;2.中国石油管道公司
,河北廊坊
065000)
摘要
:固定在管壁上的高灵敏度振动传感器监测管道遭遇打孔盗油､第三方开挖时引起的振动信号
,通过特别设计的电荷变换､程控增益放大､滤波调理电路以及单片机与
DSP构成的嵌入式系统对该信号进行分析处理
,将管道遭到威胁的信息通过
GPRS模块发送到监控中心｡在长输管道的应用表明
:该系统可以有效地对管道破坏事件进行预警｡
关键词
:管道安全
;电荷放大
;程控增益
;振动监测
Design of Pipeline Prewarning System through Vibration Monitoring
CAI Yong-jun1,CHEN Peng-chao1,ZHENG Juan1,TAN Dong-jie1,LIU Wen2,FEI Xue-song2,WU Jia-li2
(1.R&D Center of Petro China Pipeline Company, Langfang 065000, China;2.PetroChina Pipeline
Company, Langfang 065000, China)
Abstract: High sensitivity vibration sensors are set on the pipeline wall to detect the special vibration signal, which is caused by the activities of oil-stealing as well as the third-party excavation. Whether the pipeline is threatened by such the activities is concluded in the signal analysis and signal processing made by a delicate embedded system composed of a charge sensitive amplifier, againprogrammed amplifier, a filter circuit, MCU and DSP. The message that the pipeline is threatened transmitted to the control center via the GPRS module. The system has been used on longdistance pipeline for a long time during which the system can give alarm signals in time to protect the pipeline.
Key words: pipeline security; charge sensitive amplifier; programmable gain amplifier; vibration monitoring
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