應(yīng)用SHT11/71智能傳感器的溫濕度測(cè)量
助理。Grisha Spasov教授，博士， Nikolay Kakanakov學(xué)士
索非亞技術(shù)大學(xué)-科普羅夫迪夫分校，計(jì)算機(jī)系統(tǒng)技術(shù)系。Tzanko Djustabanov街25號(hào)。
4000保加利亞普羅夫迪夫電話： + （ 359 32 ） 659 576 ; 659 724 。
E-mail: gvs@tu-plovdiv.bg, gvsp@digsys.bg

關(guān)鍵詞：溫濕度檢測(cè)，智能傳感器，分布式自動(dòng)控制
本文章講述了智能傳感器的優(yōu)點(diǎn)并提出了一個(gè)和Sensirion相結(jié)合的SHT11/17溫濕度傳感器，這是一款對(duì)于檢測(cè)環(huán)境參數(shù)的開發(fā)式嵌入式系統(tǒng)的理想傳感器。
用一個(gè)使用這種傳感器的實(shí)例應(yīng)用來(lái)加強(qiáng)對(duì)SHT11/71在實(shí)際工作條件下的介紹。該應(yīng)用是用于監(jiān)測(cè)溫濕度的分散式系統(tǒng)。它使用一個(gè)集成web服務(wù)器的微控制器，主要負(fù)責(zé)信息傳輸和傳感器管理。該系統(tǒng)具有可實(shí)現(xiàn)性和可測(cè)試性。
1.導(dǎo)言
溫度和相對(duì)濕度的監(jiān)測(cè)和控制在工業(yè)，科學(xué)，醫(yī)療保健農(nóng)業(yè)和控制技術(shù)的進(jìn)程中具有重要應(yīng)用。這兩個(gè)環(huán)境參數(shù)相互制約，在許多應(yīng)用中衡量溫濕度的平衡性是至關(guān)重要的。利用現(xiàn)代技術(shù)將溫度測(cè)量元件，濕度測(cè)量單元，放大器，模數(shù)轉(zhuǎn)換器，數(shù)字接口，校準(zhǔn)存儲(chǔ)器和CRC算數(shù)邏輯結(jié)合在在一個(gè)體積非常小的單片機(jī)上是有可能的。使用此類只能傳感器可以縮短開發(fā)時(shí)間和成本，ADC和放大器集成到傳感器芯片使開發(fā)人員優(yōu)化傳感器內(nèi)容的準(zhǔn)確性和長(zhǎng)期穩(wěn)定。 除此之外，集成數(shù)字接口邏輯簡(jiǎn)化了傳感器的連接和管理，這些優(yōu)勢(shì)可以降低整體上市時(shí)間，甚至價(jià)格。[1,3]
在這篇文章中我們以來(lái)自Sensirion的SHT11/71智能傳感器為例，展示其優(yōu)點(diǎn)和測(cè)量程序。一個(gè)應(yīng)用實(shí)例也可以展示說(shuō)明其在真實(shí)條件下的工作。此應(yīng)用具有現(xiàn)實(shí)性和可測(cè)試性。
MEASUREMENT OF TEMPERATURE AND HUMIDITY USING
SHT11/71 INTELLIGENT SENSOR
Assist. Prof. Grisha Spasov, PhD, BSc Nikolay Kakanakov
Department of Computer Systems, Technical University – branch Plovdiv, 25, “Tzanko
Djustabanov” Str., 4000 Plovdiv, Bulgaria, +359 32 659 576, e-mail: gvs@tu-plovdiv.bg,
kakanak@tu-plovdiv.bg
Keywords: temperature and humidity measurements, intelligent sensors,
distributed automation and control
The paper discusses the advantages of intelligent sensors. It presents an SHT11/71 temperature
and humidity combined sensor from Sensirion. This sensor is ideal for developing distributed
embedded systems for monitoring environmental parameters.
An example application using this sensor is added to present SHT11/71 in real working
condition. The application is distributed system for monitoring temperature and humidity. It uses a
microcontroller with integrated web server to organize the communication and management of
sensors. This application is realized and tested.
1. INTRODUCTION
Measurement and control of temperature and relative humidity has significant
appliance in industry, science, healthcare agriculture and controlling technological
processes. These two environmental parameters strongly influence each other and it
is critical in some application to measure them in parallel. Using modern technologies
it is possible to combine temperature measurement element, humidity measurement
element, amplifier, ADC, digital interface, calibration memory and CRC calculation
logic in a single chip with very small size [1,3].