computer central meaning in English
计算中心
Examples
- Fieldbus is a kind of communication network which is a whole digitial communication multi _ embranchment data bus between intelligential field device and auto _ system . control system based on pcs ( fieldbus control system ) is a new kind of system which connect field control unit , field monitor unit , operation unit , communication interface uint with databus . lt integrates computer technology , communication technology and process cnotrol technology to adjust to demand of high standard productive control and enterprise management . lt developments and follows the advantage of traditional instrument control system and computer central control system and make up for their disadvantage so that it is applied in different industrial cnotrol area
现场总线是连接智能现场设备和自动化系统的数字式、双向传输、多分支的通信网络。它是一种能支持双向、多节点、总线式的全数字通信网络。基于现场总线技术的控制系统是一种新型的控制系统，它采用总线方式将现场控制单元、现场监视单元、操作站、通信接口单元连接起来，综合了计算机技术、通信技术和过程控制技术，以适应现代高水平生产控制与企业管理的需要。 - The article consists of three parts mainly : the first part has described the method of detecting the faint signal , mainly include : detection technique of faint signal , principle of the optical fibre sensor , the little lose effects when optic fibre little curved , and the research of the stress sensor of optical fibre . the second part emphasizes on the design of the intelligent photoelectricity system , mainly tells the design of the circuit to process the faint photoelectricity signal , details the software and hardware design of intelligent photoelectricity system made of single chip microcontroller , led , man - machine interface , communication interface , etc . the third part is the network communication of the detection system , details the technology of single chip microcontroller how to group the network , and the communication between single the chip microcontroller system and the modem , and how to realize the data between the field and computer central exchanged through the existing public phone network
文章主要分为三部分：第一部分论述了微小信号的检测方法，主要包括微小信号的检测技术、光纤传感器的原理、光纤微弯损耗效应及光纤应力传感器的研制；第二部分重点讲述了智能光电检测系统的研制，主要讲述了微弱光电信号调理电路的设计及由前(后)向通道、单片机、 led 、人机接口、通信接口等组成的智能光电系统的软硬件的具体设计；第三部分为检测系统的网络通信部分，具体阐述了单片机系统间的组网技术、单片机和modem之间的通信及通过现有的公用电话网络实现远程监控的技术，实现现场检测系统与桥梁测控中心的数据交换。 - The development of process control technology develops from the distributed equipment to the share of facilities , according to the control way , it experienced four seedtime : manual work , simulative instrument control ( the 50 ' s ) , computer central control ( the 60 ' s ) , distributed control system ( dcs ) ( the metaphase of 70 ' s )
过程控制技术的发展从分立设备发展到共享设备，从控制手段来分，它经历了四个发展阶段：人工控制阶段、模拟仪表控制系统阶段( 50年代开始) 、计算机集中监督控制系统阶段( 60年代开始) 、分散控制系统( dcs )阶段( 70年代中期开始) 。 - It developments and follows the advantages of traditional instrument control system and computer central control system and make up for their disadvantages so that it is applied in oil , chemistry , mineral , electricity , silk , food and water est . with its new frame , modern technology , complex information and unique control mode . it has become mainstream in process control system
它继承和发展了常规仪表控制系统和计算机集中控制系统的优点，又弥补了它们各自的不足，以崭新的结构体系、先进的技术面貌、复杂的信息处理功能和独具风格的控制方式应用于石油、化工、治金、电力、纺织、造纸、食品和水处理等各个工业生产领域，已经逐步成为过程控制系统发展的主流，它的优点在于网络结构简单，且通信电缆少，布线容易，节省材料和费用，减少了维护工作量。