发明名称 Distributed control system
摘要 A distributed control system permits local or remote control of equipment. The distributed control system provides a communication bridge through a local control panel between a non-real-time network, such as an Ethernet, and a real-time network, such as a controller area network. Both soft real-time and hard real-time networks are suitable, but hard real-time is preferred. The system uses multiple distributed control units to control various equipment components and is thus highly expandable. The distributed control system may be applied in any environment. When applied to a skid-mounted coiled tubing unit, the distributed control system reduces the amount of hydraulic hose required and therefore makes set up and take down shorter and more economical.
申请公布号 US2004182574(A1) 申请公布日期 2004.09.23
申请号 US20030390972 申请日期 2003.03.18
申请人 ADNAN SARMAD;ZHENG SHUNFENG;ROUSE MATTHEW D.;LU WEIBIN;OPEL KENT C. 发明人 ADNAN SARMAD;ZHENG SHUNFENG;ROUSE MATTHEW D.;LU WEIBIN;OPEL KENT C.
分类号 E21B44/00;G05B15/02;(IPC1-7):G05B15/00;E21B47/00;H04M3/00;H04M5/00 主分类号 E21B44/00
代理机构 代理人
主权项
地址