海上分布式多通道地震勘探仪器实时控制系统设计及测试
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摘要
设计了一种适用于海上分布式多通道地震勘探仪器的实时控制系统。为了既保证系统控制的实时响应和执行能力,又保证其具备较强的灵活性,该实时系统被设计成一种分布式、层次化、异构的树状结构,控制命令的具体执行全部由硬件逻辑完成,通过优化设计的硬件逻辑状态机保证了系统响应的强实时性;设计了一种同步控制方法和严格的时序关系,保证了各分布式执行器命令执行的一致性;控制命令的分发和协议控制由软件系统完成,提高了控制响应的灵活性。室内和海上二维和三维地震采集试验证明了本文设计思路的正确性和设计方法的可行性,对其他相关控制系统设计具有一定的参考价值。
A real-time control system,which is suitable for offshore distributed seismic-prospecting equipment with multi-channels,was designed.In order to guarantee real-time response,command execution and high flexibility,this real-time control system was designed as distributed,hierarchical and isomeric tree architecture.Command execution is performed in FPGA combined with sophisticated state machine to guarantee strict real-time performance;A synchronous control method with precise timing sequence is designed to guarantee the command execution synchronization;Command sending and protocol control are realized by software so as to guarantee flexibility.The validity of design thoughts and feasibility of design methods in this paper are verified by both laboratory and field 2D/3D situ-tests,and are believed to have reference value for other control system design.
A real-time control system,which is suitable for offshore distributed seismic-prospecting equipment with multi-channels,was designed.In order to guarantee real-time response,command execution and high flexibility,this real-time control system was designed as distributed,hierarchical and isomeric tree architecture.Command execution is performed in FPGA combined with sophisticated state machine to guarantee strict real-time performance;A synchronous control method with precise timing sequence is designed to guarantee the command execution synchronization;Command sending and protocol control are realized by software so as to guarantee flexibility.The validity of design thoughts and feasibility of design methods in this paper are verified by both laboratory and field 2D/3D situ-tests,and are believed to have reference value for other control system design.
引文
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[4]何坚强,张焕春,经亚枝.分布式实时控制系统的网络调度研究[J].西南交通大学学报,2005,40(4):501-504.He Jianqiang,Zhang Huanchun,Jing Yazhi.Network scheduling of distributed real-time control system[J].Journal of Southwest Jiaotong University,2005,40(4):501-504.
[5]王守君,吴秋云,朱耀强,等.海上单检波器高密度拖缆地震采集系统技术特点与测试效果[J].中国海上油气,2012,24(6):6-11.Wang Shoujun,Wu Qiuyun,Zhu Yaoqiang,et al.Technical features of a marine high-density seismic acquisition system with single geophone by streamer and its testing effects[J].China Offshore Oil and Gas,2012,24(6):6-11.
[6]王守君.海底电缆地震技术优势及在中国近海的应用效果[J].中国海上油气,2012,24(2):9-12.Wang Shoujun.Technical advantages of OBC seismic survey and its application effects offshore China[J].China Offshore Oil and Gas,2012,24(2):9-12.
[7]张峰烈,傅星,林谦,等.大功率脉冲激光光斑面积的实时控制系统[J].传感器与微系统,2012,31(1):127-129.Zhang Fenglie,Fu Xing,Lin Qian,et al.Real-time control system for spot area of high power pulsed laser[J].Transducer and Microsystem Technologies,2012,31(1):127-129.
[8]PICMG.Compact PCI specification 2.0D3.0[EB/OL].[2014-02-14].http:∥www.picmg.org/test/compci.htm.
[9]林建民,王宝善,葛洪魁,等.大容量气枪震源子波激发特性分析[J].地球物理学报,2010,53(2):342-349.Lin Jianmin,Wang Baoshan,Ge Hongkui,et al.Characters of large volume air-gun source excitation[J].Chinese Journal of Geophysics,2010,53(2):342-349.
[10]刘序宗,刘树彬,安琪.基于LVDS技术的高密度信号同步传输在BESIII TOF触发子系统中的实现[J].核电子学与探测技术,2010,30(7):920-924.Liu Xuzong,Liu Shubin,An Qi.Realization of high-density output signals synchronous transmission based on LVDS for TOF trigger system at BESⅢ[J].Nuclear Electronics&Detection Technology,2010,30(7):920-924.
[11]Song Kezhu,Cao Ping,Yang Junfeng,et al.A high-speed transmission method for large-scale marine seismic prospecting systems[J].Journal of Geophysics and Engineering,2012,9(6):737-748.
[12]陈一新.BESIIIμ子鉴别器前端电子学研究[D].合肥:中国科学技术大学,2005.Chen Yixin.Research of front-end electronics for BESIII Muon detector[D].Hefei:University of Science and Technology of China,2005.
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