For the development of non-contact smart card products, such as: reading and writing, charging machines, card readers, etc.!
標簽： development non-contact charging products
上傳時間： 2013-12-29
上傳用戶：561596
RFID (radio-frequency identification) is the use of a wireless non-contact system that uses radio-frequencyelectromagnetic fields to transfer datafrom a tag attached to an object, for the purposes of automatic identification and tracking [38]. The basic technologies for RFID have been around for a long time. Its root can be traced back to an espionage device designed in 1945 by Leon Theremin of the Soviet Union,whichretransmittedincidentradiowaves modulatedwith audioinformation. After decades of development, RFID systems have gain more and more attention from both the research community and the industry.
標簽： Infrastructure RFID as an
上傳時間： 2020-06-08
上傳用戶：shancjb
溫度控制如今已成為當代社會研究的熱點之一,而溫度檢測在現代設備參數檢測中也是一項極其重要的技術,應用十分廣泛。與傳統的測溫方法相比,紅外測溫方法具有時間短、精度高、使用簡單方便等優點。本文以環境溫度為被測對象,設計了以STC89C52單片機為控制中心的紅外測溫裝置,能夠實現對目標溫度的實時采集、處理、顯示和報警等功能。本設計主要是由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.
上傳時間： 2022-03-27
上傳用戶：jiabin
本系統基于STM32單片機設計的非接觸式電流檢測控制系統,通過OPA548片將所給任意信號放大,由100Ω電阻和INA128芯片進行電流電壓轉換放大后,利用STM32單片機對獲取的電壓信號以0.488μs頻率采樣,利用STM32單片機的FFT庫,獲得信號的諧波信息。測量電流信號精準,該設計可廣泛應用在以STM32單片機為核心控制器件的新型儀表中,性能精準且抗干擾能力強。This system is a non-contact current detection and control system based on STM32 single chip microcomputer. It amplifiesany signal through OPA548 chip, converts and amplifies the current and voltage by 100 Ω resistance and INA128 chip. The obtainedvoltage signal is sampled at the frequency of 0.488 μs by STM 32 single chip microcomputer, and the harmonic information of the signalis obtained by the FFT library of STM 32 single chip microcomputer. The measurement of current signal is accurate. This design can bewidely used in a new instrument with STM 32 single chip microcomputer as its core control device, with accurate performance and stronganti-interference capability.
上傳時間： 2022-03-27
上傳用戶：
This code may be reused for any educational or non-commercial application without further licence Contact the author at BrianLBurns@att.net for any other use.
標簽： non-commercial application educational further
上傳時間： 2014-07-27
上傳用戶：jennyzai
Non-Networked File System在幾個非網絡的（或慢網絡的）Unix 計算機上提供了一個兼容的文件系統。
標簽： Non-Networked System File Unix
上傳時間： 2013-11-30
上傳用戶：13517191407
Steffensen method for non-linear equations in C
標簽： Steffensen non-linear equations method
上傳時間： 2014-08-12
上傳用戶：com1com2
Newton method for solution of non-linear equations in C
標簽： non-linear equations solution Newton
上傳時間： 2014-01-16
上傳用戶：zm7516678
Secant method with 2 points for non-linear equations in C
標簽： non-linear equations Secant method
上傳時間： 2015-01-20
上傳用戶：ma1301115706
Conjugate gradient method for non-linear equations inC
標簽： non-linear Conjugate equations gradient
上傳時間： 2013-12-04
上傳用戶：invtnewer
