建筑环境与能源应用工程专业英语14ppt课件

,Unit Fourteen,Control and Building Automation System,宾洽曰篇兔尹琼颓创霜哀絮试梭摸攀赞谎难铃测妮链墩修巴谍雏炽灸青如建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Unit Fourteen宾洽曰篇兔尹琼颓创霜哀絮试梭摸,What is an intelligent building?,Schematic Diagram of an Intelligent Building System,讶谗哦载晰本票滤楷差抓鉴瓶领掸的抽息蹈必颓滩臻厉滚姿褥坞喘酱汐零建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,What is an intelligent buildin,Up to now,there has not been a universally accepted,definition,for an Intelligent Building.,Most existing definitions of IB around the world,centre on,the need for a building to be suitable for the occupants to work and live in safely,comfortably,effectively and efficiently.,“Intelligent building,is something that make,stupid,people,feel not as,stupid,as they are”.,羞龟舅辑程沧浆阻孕品策位啊寓宇陷筑炕跑抨锐刊捅笼对技糯僧喳蚊偶构建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Up to now,there has not been,Intelligent Building can bring us,Reduced Resource Consumption,Both home and building technology offer tremendous potential savings through intelligent controls.,Optimized Convenience and More Comfort,Apart from minimizing consumption costs,private home owners will be interested in higher levels of convenience,safety and security.,噬攘豌汉株傻毁起器衣男宠径局冶咕痊眉譬故海借侨揖厉熊留桶今紫姐筷建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Intelligent Building can bring,Smart Home is an integration of various systems at home such as security,home automation,lighting control,CCTV and entertainment system which is coordinated by a smart home controller and controlled by users using various centralized command interfaces such as a touch screens,keypads,universal remote controllers,internet browser,telephone,and even your LCD TV screen.,Smart Home Systems,CCTV:Closed Circuit Television,CCTV:China Central Television,沤劝垂煌嗜诚独氟茎耳举渔烤咒村凑稍富锈腐衫症懈住摔都扑砾莉想颊菌建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Smart Home is an integrati,On/off Control,The control device can be positioned only to a maximum or minimum state(e.g.,on or off).Because,On/off control is simple and inexpensive,it is used extensively for both industrial and commercial control.A typical home thermostat that starts and stops a furnace is an,example,of On/off action.,佳役歹颠选激审窄贱抱祈安祷寅郧穴帧袒磕雨韵猎得荚辙寐偶肯尼蔑辈蜕建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,On/off ControlThe control devi,Floating Control,Dead(neutral)zone,盲区 停滞区,抖曹掇往补定咎遍捉肮障漆却吴缨弯廷况歼炕杂还淳单摄忆断霓誓胞鹰炳建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Floating ControlDead(neutral),In,floating control,the controller can perform only two operations moving the controlled device toward either its open or closed position,usually at a constant rate.Generally,a neutral zone between the two positions allows the controlled device to stop at any position when the controlled variable is within the differential of the controller.When the controlled variable falls outside the differential of the controller,the controller moves the controlled device in the proper direction.,open,shut,Time,Upper limit,Lower limit,neutral zone,Temperature,Valve,乃铰箔戮真九芳凭冲膊涪鸥逆锅嗜狂镁瓦祖孜乖仙但履锈盈嘴舷渊牙右恃建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,In floating control,the contr,set point,controlled variable,proportional band,output,offset,Proportional control,requires a continuously variable output of the controlled device.The control system produces an output which is proportional to the error signal,i.e.the difference between the value of the controlled variable and the set point.,Proportional control,signal,response,较郁碰浇卧者宫磁厚碟鸥逸鸥析蛰射庸齿棺阳咀朗垣宏炙玻楞砖煞炯渡揩建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,set pointcontrolled variablepr,Integral control,Derivative control,signal,response,远宵蔽垛胺躯焉颓作胀琴急箕褒冈网讣尼郊瓮幻鞍储钩您疾悯目在摔虏猛建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Integral controlDerivative con,Proportional plus Integral(PI)Control,Proportional-Integral-Derivative(PID)Control,Proportional Action.,霓握驭翅竿返钳补雾煤乖陆尾襄蠕矮佑侍衡凰役住探顽迫贿痰果柑襄宦诚建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Proportional plus Integral(PI,Closed loop control,Feedback,A,closed loop or feedback control,measures actual changes in the controlled variable and actuates the controlled device to bring about a change.The corrective action continues until the variable is brought to a desired value within the design limitations of the controller.This arrangement of having the controller sense the value of the controlled variable is known as feedback.,篓溅米唉模口剖翘垄恫亮窟烩红哉堆盼泡粥狐赖滇熊胯涌汗孵铂诉坞汲尔建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Closed loop controlFeedbackA c,Example of Feedback Control,Room Air Temperature Control,洋博峪藐纬蔚搞疫枷宰击捷廊纸蕴实脖样平寅盐摸叼喳歇妙恢束湃释植蛹建筑环境与能源应用工程专业英语14建筑环境与能源应用工程专业英语14,Example of Feedback Control洋博峪,Open loop control,An,open loop control,does not have a direct link between the value of the controlled variable and the controller.An open loop control anticipates the effect of an external variable on the system and adjusts the set point to avoid excessive offset.,An,example,is an outdoor thermostat arranged to control heat to a building in proportion to the calculated load caused by changes in outdoor temperature.In essence,the designer presumes a fixed relationship between outside air temperature and the heat requirement of the building and specifies control