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　　Whether in mechanical manufacturing,medical equipment,or in the automotive electronics industry,communication technology,we can see that sensors play an important role in it.With the development of sensors,many industries are actively developing and utilizing sensors,and many new sensors are widely used.

 

　　地鐵成為人類(lèi)利用地下空間的一種有效形式，充分緩解了城市的地面交通，以其運量大，準時(shí)性好，快速安全，交通效率高，利于環(huán)保等優(yōu)點(diǎn)，成為現代城市地下空間建設的重點(diǎn)。但地鐵在運營(yíng)過(guò)程中，環(huán)境控制(簡(jiǎn)稱(chēng)環(huán)控)系統的用電量占了相當的比重，特別是帶有空調的環(huán)控系統的用電量約占整個(gè)地鐵耗電量的40%左右。但為了給乘客提供一個(gè)令人滿(mǎn)意的舒適熱環(huán)境，必須有地鐵環(huán)控系統。

 

　　Metro has become an effective form of human use of underground space,which fully alleviates the urban ground traffic.With its advantages of large volume,good punctuality,fast and safe,high traffic efficiency and environmental protection,it has become the focus of modern urban underground space construction.But in the process of Metro operation,the power consumption of environmental control system accounts for a considerable proportion,especially the power consumption of environmental control system with air conditioning accounts for about 40%of the total power consumption of metro.However,in order to provide passengers with a satisfactory comfortable thermal environment,there must be a subway environmental control system.

 

　　因此，如何在環(huán)控系統中采取節能措施具有十分重要的意義。地鐵的運量大，也就是乘客流量大，所需要的新風(fēng)量變化大。因此地鐵的空調負荷變化大，要實(shí)現節能必須借助于自動(dòng)控制的手段。自動(dòng)控制技術(shù)已經(jīng)越來(lái)越多的應用于各類(lèi)空調系統，在制冷設備集中、工況變化范圍大的系統中，自控技術(shù)更是對系統的節能優(yōu)化運行起到了很大作用。作為控制系統必不可少的組成部分，環(huán)境傳感器在地鐵中越來(lái)越多的起著(zhù)重要的作用。

 

　　Therefore,how to take energy-saving measures in the environmental control system is of great significance.The large volume of subway traffic,that is,the large passenger flow,requires a large change in fresh air volume.Therefore,the air-conditioning load of the Metro varies greatly.In order to achieve energy saving,automatic control must be used.Automatic control technology has been more and more applied to all kinds of air conditioning systems.In the system with centralized refrigeration equipment and wide range of working conditions,automatic control technology has played a great role in energy-saving and optimal operation of the system.As an indispensable part of the control system,environmental sensors play an increasingly important role in the subway.

 

　　在地鐵的環(huán)境控制系統里，我們使用了室內溫濕度傳感器、管道溫濕度傳感器以及Co2濃度傳感器。

 

　　In the Metro environmental control system,we use indoor temperature and humidity sensors,pipeline temperature and humidity sensors and Co2 concentration sensors.

 

　　我們可以在車(chē)站的站廳以和站臺區等公共區內以及重要的設備房?jì)仍O置室內溫濕度傳感器，以監測車(chē)站實(shí)時(shí)的溫度及濕度。這些參數可以幫助運營(yíng)人員對車(chē)站各系統工況進(jìn)行合理的調整，以保持車(chē)站公共區始終處于較為舒適的環(huán)境、確保設備房一直處于合適的溫度之下。室內溫濕度傳感器一般裝在車(chē)站站廳、站臺以及設備房的墻面上或頂上。

 

　　We can set up indoor temperature and humidity sensors in the station hall,platform area and other public areas,as well as in important equipment rooms,to monitor the real-time temperature and humidity of the station.These parameters can help operators to adjust the working conditions of each system of the station reasonably,so as to keep the public area of the station in a more comfortable environment and ensure that the equipment room is always under the appropriate temperature.Indoor temperature and humidity sensors are usually installed on the walls or roofs of station halls,platforms and equipment rooms.

 

　　與此同時(shí)，我們可以在車(chē)站的新風(fēng)室和回風(fēng)室安裝管道溫濕度傳感器，以監測室外新風(fēng)的和車(chē)站內的溫度以及濕度。環(huán)境控制系統可以根據傳感器采集到的數據來(lái)判斷車(chē)站的環(huán)境質(zhì)量，并根據預先設計好的各種工況來(lái)進(jìn)行自動(dòng)切換，以實(shí)現自動(dòng)控制系統對車(chē)站環(huán)境的自動(dòng)控制，使得車(chē)站環(huán)境始終處于較為舒適的環(huán)境之中，并最終實(shí)現節能的減排的目的。管道溫濕度傳感器一般安裝在新風(fēng)室和回風(fēng)室的墻壁上。

 

　　At the same time,we can install pipe temperature and humidity sensors in the fresh air room and return air room of the station to monitor the outdoor fresh air and the temperature and humidity in the station.The environmental control system can judge the environmental quality of the station according to the data collected by sensors,and switch automatically according to the pre-designed working conditions,so as to realize the automatic control of the station environment by the automatic control system,so that the station environment is always in a more comfortable environment,and ultimately achieve the purpose of energy saving and emission reduction.Pipe temperature and humidity sensors are usually installed on the walls of fresh air chamber and return air chamber.

 

　　我們還可以在車(chē)站的回風(fēng)室內安裝Co2濃度傳感器，以監測車(chē)站內Co2的濃度。在車(chē)站里，由于人的呼吸，Co2的濃度會(huì )增加，當Co2濃度處于較大值時(shí)，當前車(chē)站的空氣質(zhì)量就對乘客的健康產(chǎn)生了威脅，所以，運營(yíng)人員可以根據Co2濃度傳感器采集上來(lái)的數據對車(chē)站公共區的工況進(jìn)行及時(shí)的調整，以保證車(chē)站的空氣質(zhì)量始終處于好的狀態(tài)。

 

　　We can also install a Co2 concentration sensor in the return air chamber of the station to monitor the concentration of Co2 in the station.In the station,because of human breathing,the concentration of Co2 will increase.When the concentration of Co2 is high,the air quality of the station threatens the health of passengers.Therefore,operators can timely adjust the working conditions of the public area of the station according to the data collected by the Co2 concentration sensor to ensure that the air quality of the station is always in good condition.