This is a book on wireless communication. That usually means communica-
tion by radio, though ultrasound and infrared light are also used occasion-
ally. The term “wireless” has come to mean nonbroadcast communication,
usually between individuals who very often use portable or mobile equip-
ment. The term is rather vague, of course, and there are certainly borderline
applications that are called wireless without falling exactly into the above
definition.
EL357N(C)光耦 資料The EL357N-G series contains an infrared emitting diode, optically coupled to a phototransistor detector. The devices in a 4-pin small outline SMD package
研究一種智能掃地機器人。從硬件系統(tǒng)控制模塊設(shè)計到主要技術(shù)調(diào)試進行了較詳細的闡述。以STM32單片機為控制核心與電機驅(qū)動、紅外線路徑識別模塊等相互協(xié)調(diào)應(yīng)用。進行電路搭建和程序編寫。實現(xiàn)了智能掃地機器人紅外線避障和自動掃地功能,其清掃面積能達到約70%,清掃率約60%,很大程度受到自身機械機構(gòu)的限制,后期將對小車的機械結(jié)構(gòu)進行完善。This paper studies an intelligent sweeping robot.From the hardware system control module design to the main technical debugging are described in detail.STM32 MCU is used as the control core to coordinate with motor drive and infrared path recognition module.Conduct circuit building and programming.The functions of infrared obstacle avoidance and automatic sweeping of intelligent sweeping robot are realized.Its cleaning area can reach about 70%and the cleaning rate is about 60%.Because it is limited by its own mechanical mechanism to a great extent,the mechanical structure of the car will be improved in the later stage.
溫度控制如今已成為當代社會研究的熱點之一,而溫度檢測在現(xiàn)代設(shè)備參數(shù)檢測中也是一項極其重要的技術(shù),應(yīng)用十分廣泛。與傳統(tǒng)的測溫方法相比,紅外測溫方法具有時間短、精度高、使用簡單方便等優(yōu)點。本文以環(huán)境溫度為被測對象,設(shè)計了以STC89C52單片機為控制中心的紅外測溫裝置,能夠?qū)崿F(xiàn)對目標溫度的實時采集、處理、顯示和報警等功能。本設(shè)計主要是由STC89C52單片機、紅外測溫傳感器、LCD1602液晶顯示器、按鍵和蜂鳴器等部分組成,采用非接觸的方式對目標溫度進行實時檢測。Temperature control has become one of the hotspots in contemporary social research,and temperature detection is an extremely important technology in modern equipment parameter detection.Compared with traditional method,the infrared temperature measuring method has advantages of short time,high precision and convenient operation,etc.This paper consider environment temperature as research objects and designs an infrared temperature measuring device which employs the STC89C52singlechipas-control center,and it can realize timely collection,processing,display and alarm function of the target temperature.The design is mainly composed of STC89C52 singlechip,infrared temperature sensor,LCD1602monitor,keys and buzzer,etc.This design detects the target temperature by non-contact method.
入室搶劫事件屢見不鮮,針對此現(xiàn)象進行分析不難發(fā)現(xiàn),造成失竊事件的極大原因是人們慵懶和意識差等不良性格造成習慣性不鎖門.本文以STC89C52單片機為基礎(chǔ),設(shè)計了一種基于人體紅外傳感器的自動關(guān)門鎖門裝置,來解決此類問題.The incidents of burglary are so common. It is not difficult to find that the main reason for the burglary is the habit of unlocking of doors caused by people's laziness and poor consciousness. Based on the single chip microcomputer of STC89C52, a device used with infrared sensor of human body is introduced in this paper, which can achieve the effect of automatic closing and locking doors.
多功能智能遙控窗簾系統(tǒng)廣泛地應(yīng)用于家居、辦公室等場合,同時也是智能家居的一部分。該設(shè)計主要利用STC89C52單片機核心電路、光敏電阻電路、步進電機電路、溫濕度傳感器、紅外線控制電路、AD轉(zhuǎn)換電路、LCD1602液晶顯示屏等模塊完成精確控制窗簾的開和關(guān)。multi-functional intelligent remote control curtain system is widely used in home,office and other occasions,and is also part of intelligent home.The design mainly uses STC89 C52 single-chip core circuit,photosensitive resistor circuit,stepping motor circuit,temperature and humidity sensor,infrared control circuit,AD conversion circuit,LCD1602 LCD display and other modules to achieve accurate control of the curtain opening and closing.
文章提出了一種基于AT89S51單片機的智能家居系統(tǒng)的設(shè)計,該系統(tǒng)具有室內(nèi)煤氣以及煙霧的檢測、家庭室內(nèi)防盜等功能。文章詳細分析了系統(tǒng)的總體設(shè)計,詳盡分析并設(shè)計了煤氣傳感器模塊、煙霧傳感器模塊、人體紅外感應(yīng)傳感器模塊、報警模塊等各硬件部分,并利用PROTUES軟件進行了系統(tǒng)仿真。仿真結(jié)果證明:系統(tǒng)具有成本低、效率高、操作方便等優(yōu)點,達到了預(yù)期設(shè)計的效果。This paper presents the design of an intelligent home system based on AT89S51 microcontroller.The system has the functions of detecting indoor gas and smoke,guarding against theft in the home,and so on.The overall design of the system is analyzed in detail.The gas sensor module,smoke sensor module,human infrared sensor module,alarm module and other hardware parts are analyzed and designed in detail,and the system simulation is carried out using PROTUES software.The simulation results show that the system has the advantages of low cost,high efficiency,convenient operation and so on,and achieves the expected design effect.
為了實時檢測血氧量,能使缺氧特別敏感的腦組織或心臟類疾病患者得到及時治療,采用近紅外雙波長透射式光電脈搏血氧測定法,以H橋電路對發(fā)射光源進行控制及通用運算放大器搭建濾波電路。運用參數(shù)理論計算和計算機仿真結(jié)果相對比的方法,通過Mu ltisim軟件對所設(shè)計電路進行仿真,仿真結(jié)果與理論參數(shù)計算相吻合,證明了電路參數(shù)設(shè)計的可行性,為血氧儀的實物制作提供參考。For real-time detection of oxygen saturation for timely treatment of the brain or heart,which are very sensitive to oxygen inadequacy,the near-infrared wavelengths double photoelectric pulse oximeter transmission method is adopted.The illuminant is controlled with the H bridge circuit and the filter circuit is built with general op-amps.Parameters by theoretical calculation is compared with the computer simulation results in Multisim and satisfactory results are obtained.It is shown that the design of the circuit parameters is feasible and can be a help in making the physical blood-oxygen monitor.
