Question

请求各位英语高手或者英语专业的帮我翻译一段文字吧，拜托大家。

本次课题题目是分布式污水处理测控系统中的设计与应用，它是以人—计算机—PLC—现场设备的设计原则来实现的一个测控系统，基本构建了PLC和组态软件在污水处理远程监控系统中的应用,采用PC机和PLC组成网络控制。组态软件指一些数据采集与过程控制的专用软件，它们是在自动控制系统监控层一级的软件平台和开发环境，能以灵活多样的组态方式（而不是编程方式）提供良好的用户开发界面和简捷的使用方法，它解决了控制系统通用性问题。PLC是一种专门为在工业环境下应用而设计的数字运算操作的电子装置。它采用可以编制程序的存储器，用来在其内部存储执行逻辑运算、顺序运算、计时、计数和算术运算等操作的指令，并能通过数字式或模拟式的输入和输出，控制各种类型的机械或生产过程。所以这次设计过程中，为提高系统可靠性,用工控机作为上位机,PLC作为下位机,控制现场设备运行。从而实现污水处理过程的自动控制功能，同时与合流中央监控系统进行通信，上传数据和接受中央监控系统下发的控制命令，整个控制系统改造最终达到无人或少人值守的目的，本系统大大提高了污水处理的自动化水平。
污水处理就是采用各种技术与手段，将污水中所含的污染物质分离去除、回收利用，或将其转化为无害物质，使水得到净化。现代污水处理技术，按原理可分为物理处理法、化学处理法和生物处理法三类。城市污水中的污染物是多种多样的，往往需要采用几种方法的组合，才能去除不同性质的污染物与污泥，达到净化的目的与排放标准。本次设计是基于活性污泥技术来实现的，活性污泥系统在实际运行中，污水的水质及水量在不断的变化，环境条件也在不断的变化，这就需要按照活性污泥中的微生物的代谢规律进行调节控制，使系统处在最佳运行状态，发挥最大的效益，进一步提高出水水质。根据系统设计要求，采用“集中监测、分散控制”的原则构建控制系统。采用生产管理监控级和现场控制级的网络结构，其电气自控系统以西门子PLC和ProfiBus网络系统为控制系统主干，同时通过安装在上位工控机的监控组态软件来监控整个系统的运行状况。污水处理厂的监控系统是由上位工控机、SIMATICST-300PLC及其控制模块和ProfiBus网络组成高可靠性的分布式系统，上位系统通过ProfiBus总线和下位系统连接。上位机为通用的工控计算机。为了更好地反映各设备的运行情况,又分别制作了中和池系统、厌氧池系统、组合池系统、沉淀池系统等分画面。画面中各参数值都是根据下位机PLC的改变而改变的。工作人员通过这些画面可以随时对系统的运行参数、设备状态、各种越限报警信号,进行实时监测、处理、记录和显示。下位机可以和现场的传感器、变送器、自动化仪表相连,进行数据通信、数据处理和数据管理。根据工艺要求,PLC得电自检无误后,外部传送信号通过传感器、自动化仪表输入到PLC,当电路发生短路、断路或过载时电动机将停止,同时发出报警。通过PLC进行数据处理,PLC可根据液位信号决定设备的启停和阀门开关,以出水水质为依据采用前馈—反馈控制方法,使系统在各种工况下都能够实时地、稳定地控制水质。液位、PH值等模拟量也采用闭环控制,形成多个控制回路。污水处理过程逻辑性很强,阀门和液位之间动作有很多连锁关系,将所有有连锁关系的阀门和液位的动作关系确定清楚,然后用相应的控制点形成电气连锁,即可实现工艺要求。各PLC分布控制站主要负责采集现场各个传感器的信号，除了把信号转换后传给上位机，由上位机进行显示和控制外还要根据控制要求对现场执行机构做出相应的控制，所以各分站PLC不但具有中心控制的作用，还具有数据中转站的作用。

Answer 1

The sewage treatment project entitled Distributed Control System Design and Application, which is based on human - computer-PLC-field equipment design principles to achieve a control system, the basic construction of the PLC configuration software and remote monitoring at the sewage treatment system, using a network PC, and PLC control. Configuration software refers to the number of data acquisition and process control of special software, they are in the automatic control system for monitoring layer-level software platform and development environment, capable of flexible configuration mode (not programmatically) to provide a good user development interface and simple to use, it addresses the general problem of the control system. PLC is designed for applications in industrial environments designed for digital computing operation of electronic devices. It can be programmed using the memory, used in its internal storage implementation of logical, sequential operation, timing, counting and arithmetic operations, such as operating instructions, and through the digital or analog input and output, control of all types machinery or production processes. So the design process, to improve system reliability, with IPC as the host computer, PLC, as the next crew, the control field device operation. The sewage treatment process in order to achieve automatic control, central monitoring system at the same time and Confluence to communicate, upload the data and issued by the Central Monitoring System for the control command, the control system to achieve the ultimate objective of no or less people on duty, the system treatment greatly increased the level of automation.Sewage treatment is the use of various technologies and means, the pollutants contained in wastewater were removed, recycling, or turning it into harmless substances, the water purification. Modern sewage treatment technology, according to the principle can be divided into physical treatment, chemical treatments and biological treatment categories. Pollutants in urban sewage are diverse, often requires a combination of several methods used to remove different types of pollutants and sludge to achieve the purpose of purification and emission standards. The design is based on activated sludge technology to achieve, activated sludge system in actual operation, the effluent water quality and quantity in constant change, environmental conditions are constantly changing, which requires in accordance with the microorganisms in activated sludge control laws regulate the metabolism, allowing the system to run in the best condition to maximize the benefits and further improve the water quality. According to the system design requirements, the use of "centralized monitoring, decentralized control," the principles of building control systems. With production management and field monitoring level control level network structure, its electrical and automatic control system to Siemens PLC control system ProfiBus backbone network system, while the upper IPC by installing monitoring software to monitor the entire system configuration operating conditions. Sewage treatment plant monitoring system is composed of upper IPC, SIMATICST-300PLC and its network of control modules and ProfiBus high reliability distributed system, the host system through the bus and lower ProfiBus system connection. For the general industrial PC computer. In order to better reflect the operation of equipment, and they were produced in the pool system, the anaerobic pond system, combined pool system, settling tank system decile screen. Screen under the parameter values are based on changes in PLC-bit machines change. Staff through these images at any time the system operating parameters, equipment status, the more limited variety of alarm signals, real-time monitoring, processing, recording and display. The next crew can be on-site sensors, transmitters, automation instruments connected for data communications, data processing and data management. According to process requirements, PLC was correct after the POST, the external transmit signals through sensors, automation instrument input to the PLC, when the circuit is a short circuit, open circuit or overload the motor will stop, also issued to the police. Data processing by PLC, PLC level signals can be decided according to start and stop and the valve switch equipment to water quality-based feedforward - feedback control method, the system can in real time under various conditions and stable Control of water quality. Level, PH value, etc. also use the analog closed-loop control, the formation of multiple control loops. The sewage treatment process are highly logical, valves and level a lot of linkage between the action, will all the valve linkage to determine the relationship and level of action clear, and then use the corresponding control points to form electrical chain, you can implementation process requirements. The PLC controller is responsible for acquiring the distribution of the various sensor signals, in addition to the host computer and sent signals from the host computer for display and control the external control requirements but also according to the implementing agencies on the scene to make the corresponding control, so the sub- PLC station not only has the role of central control, but also has the role of data interchange.

Answer 2

This topic topic is distributed sewage treatment of measurement and control system design and application, it is computer -- -- -- site equipment design of PLC to realize the principle of a measurement and control system, the basic constructs PLC and configuration software in sewage disposal remote monitoring system, the application of PC and PLC networks control. Configuration software refers to some data acquisition and process control of specialized software, they are in the automatic control system monitoring layer level of software platform and development environment, can with flexible configuration mode (not programming style) provide a good development interface and the user use a method, the simplicity of it solves control system general questions. PLC is a specialized in industrial environment application and design of digital computing operations electronic devices. It USES can build programs used in its internal memory, storage to perform the logic operation, order operation, timing, counting and arithmetic operation instruction, and can through digital or analog input and output, the control various types of machinery or production process. So this design process, in order to improve the system reliability, with industrial PC as PC and PLC as the next place machine, control site equipment operation. So as to realize the automatic control wastewater treatment process, at the same time and the function of central control system for communication mixing, upload data and accept the central monitoring system, the control commands issued by the whole control system to reform no or less finally achieved the purpose of unattended operation, this system greatly improve the sewage disposal automation level.

Wastewater treatment is used various technology and method, sewage contain pollutants separation removal, recycling, or transformed into harmless substances, purified water. Modern wastewater treatment technology, according to the principle can be divided into physical treatment method, chemical processing method and biological treatment method with three types. Urban sewage of pollution is varied, often need to adopt the combination of several methods, to remove different nature of the pollutants and sludge, achieve the purpose of purifying and emission standards. The design is based on activated sludge technology to realize, activated sludge system in the actual operation of the water quality and water, sewage in the constant change, environmental conditions in the unceasing change, this needs the microorganism in accordance with the activated sludge metabolic regularity, made the system to adjust control in best operation state, maximum benefit, further improve the effluent. According to the system design requirements, adopt "centralized monitoring, distributed control of the principle of" constructing control system. Using production management monitoring level and on-site control level of network structure, its electric control system to Siemens PLC and ProfiBus network system for control system backbone, and at the same time through installed in upper industrial PC monitoring configuration software to monitor the operation status of the whole system. Sewage treatment plants monitoring system is SIMATICST - by industrial computer, PC and its control module and ProfiBus mill network composition high reliability of the distributed system, superior system through the ProfiBus and lower level system connection. PC for general industrial controlling computer. In order to better reflect the equipment performance, and produced a neutralization pool system respectively, YanYangChi system, combination pool system, traps system picture. Equally Pictures of each parameter values are according to the lower level computer PLC changes. Staff through these pictures can always to the operation of the system parameters, equipment status, the limit of real-time monitoring and alarming signal processing, recording and display,. Lower place machine can and field sensor and transducer, industrial automation instrument is linked together, data communication, data processing and data management. According to the technical requirement, PLC, after having confirmed to electricity self-inspection external signals through the sensor, industrial automation instrument input to PLC, when circuit, open circuit or overload short-circuited when motor will cease, and warning. Through data processing of PLC, PLC according to level signal decision equipment start-stop and valve switch, based in water by feedforward - feedback control method, and makes the system under various working conditions can real-time, stability to control water quality. Level, PH value and so analogue also USES closed-loop control to form multiple control circuit. Sewage treatment process logic is very strong, valves and level there are many chain relations between action, will all have a relationship of the valve and level, and then to determine action relationship with corresponding clearly control can be realized form electrical chain, technological requirements. Each PLC distribution control station is mainly responsible for the collection field of each sensor signal, besides the signal after converting to PC, by PC for display and control according to the on site control requirements to make corresponding control actuator, so each branch net PLC not only has the role of center control, also has the role of data stations.

Answer 3

用谷歌翻译先翻译下。。然后自己看着调整调整。。。我想四级水平就行了。。。再说你搞这研究课题，又不是英文研究课题，翻译成英文后，其他人又有谁会去仔细看呢？？

Answer 4

这题目工程量大，可是悬赏分太低了！

追问

悬赏分不是大问题，但是你得保证你的翻译有一定的质量，不要从软件随便翻译的，那个根本不能用。谢谢！

Answer 5

没分~~

追问

拜托，但不要网上那些软件翻译的，结构不整齐，希望是英语高手翻译的