主要介紹了以PIC18F2480單片機為處理器，基于可編程多路開關(guān)檢測接口器件MC33993實現(xiàn)的車用多路開關(guān)檢測接口電路的設(shè)計。該設(shè)計克服了以往基于分立元件的檢測接口電路的弊端，簡化了接口電路設(shè)計，保證了車用開關(guān)工作的可靠性和安全性。 Abstract: The design of automotive multiple switch detection interface circuit based on MC33993 is introduced mainly which adopts PIC18F2480 single chip microprocessor.This circuit overcomes shortage of traditional design which contains many schism elements, and the application of MC33993 also predigests the whole design of interface circuit and guarantees the dependability and security of the switch.
標簽： 33993 MC 多路開關(guān) 檢測
上傳時間： 2013-11-19
上傳用戶：star_in_rain
介紹了基于單片機航空交流電參數(shù)測試儀的系統(tǒng)設(shè)計。以Silicon Labs公司的C8051F005單片機為核心設(shè)計出數(shù)據(jù)采集板，通過RS-232串口與上位機通訊。運用Lab Windows/CVI編寫的上位機軟件實現(xiàn)信號的檢測以及波形和數(shù)據(jù)的顯示，給出了測試儀硬件電路的組成和軟件流程圖。本系統(tǒng)具有硬件結(jié)構(gòu)簡單、容易實現(xiàn)和成本低等特點，在實際應(yīng)用中其穩(wěn)定性、精確性均能滿足客戶要求。 Abstract: The design of aeronautics AC parameters tester based on the single-chip is introduced.The core component of data acquisition board is C8051F005 single chip of Silicon Labs Company,and communication with PC through RS-232. The signal processing software programmed with LabWindows/CVI can be used successfully to fulfill inspection of signal and display of the waveform and data. The hardware and software configuration of test instrument are provided.The hardware of the system is simple, and can be easily realized.The stability and precision of the measurement instrument are enough to meet the requirements.
標簽： C8051F005 單片機 儀的設(shè)計 參數(shù)測試
上傳時間： 2013-11-18
上傳用戶：wang5829
介紹了基于單片機C8051F020的通用串口適配器的設(shè)計與實現(xiàn)方法，即由單片機控制的智能化一對多口收發(fā)信號轉(zhuǎn)換器。通過采用C51對單片機進行編程，控制與RS-232（標準RS-232電平）、RS232(TTL電平)、RS-422接口的數(shù)據(jù)通信；采用C++ Builder作為開發(fā)平臺，通過RS-232接口實現(xiàn)上位機對適配器各個通信端口的控制。 Abstract: Design and realization of a universal serial port adapter based on the MCU C8051F020 are introduced.The adapter is an intelligent one-to-more receiving and transmitting signal converter controlled by the MCU. By programming the MCU with the language C51,MCU control data communication between the MCU and RS-232(RS-232 level),RS-232(TTL level),RS-422 port; Using C++ Builder as the development plane, by one RS232 port, the upper PC can control each of the communication port of the adapter.
上傳時間： 2013-11-19
上傳用戶：hebanlian
介紹了電力操作電源與智能電池巡檢系統(tǒng)的特點，給出了一種基于超低功耗單片機MSP430 F149針對中小型變電站自動化運行的專用設(shè)備的基本設(shè)計原理及實現(xiàn)方法，最后給出了詳細硬件構(gòu)成和軟件實現(xiàn)。該系統(tǒng)能滿足中小型變電站安全、可靠、自動運行的要求，并通過與上位機的串行通信實現(xiàn)變電站的遠程管理和控制。 Abstract: The characters of the intelligent battery data logging system of the electric operation power are introduced.The basic design principle and the implemented methods of the special equipment which only designed for the middle or small transformer substation based on MSP430F149 are prescribed. Finally, the hardware block diagram and the software flow chart are also given. The function that the system finally needs to realize can basically meet with the middle or small transformer substation’s satisfy, reliably,and automatic running.And it can also realize the transformer substation long-distance management and control by serial communicating with the host computer.
上傳時間： 2013-11-25
上傳用戶：黃華強
介紹一種以MSP430單片機為基礎(chǔ)的智能頻率測量系統(tǒng)，采用硬件邏輯與軟件指令相結(jié)合的方式控制閘門，實現(xiàn)0 MHz~10 MHz范圍內(nèi)無檔切換的等精度測量。 Abstract: An intelligent frequency measurement system based on MSP430 singlechip is introduced. The system uses a way that can combine hardware logic and software instructions to contronl the strobe ,and completes the functions of equal precision in the range of 0MHz~10MHz without shifting
上傳時間： 2013-10-28
上傳用戶：dbs012280
介紹一種基于單片機的多路溫度采集及監(jiān)控系統(tǒng)，能夠測量6路溫度信號，具有計算機聯(lián)網(wǎng)功能，各測量點可以單獨監(jiān)控和設(shè)置，可根據(jù)用戶的需求自動控制。測量溫度范圍為-10 ℃～200 ℃，控制方式采用模擬量調(diào)壓模式。該系統(tǒng)具有控制精度高、沖擊小等特點。 Abstract: A temperature collecting and surveillance-controlling system based on sing-chip microcomputer is introduced. It can measure 6 channel signal of the temperature,and it has a function of network connection.The temperature measure points can be monitored and located, it can be controlled automatic according to user’s demand.The temperature range is -10℃ to 200℃.The model of control is adjustable voltage with simulation. It features high precision and little impact.
標簽： 多路 溫度采集 監(jiān)控系統(tǒng)
上傳時間： 2013-10-23
上傳用戶：bjgaofei
出了一種利用ATmega8單片機對ISD2500系列語音芯片進行控制的智能語音系統(tǒng)，此系統(tǒng)使用靈活，易于功能升級，具有良好的應(yīng)用前景。提供了硬件連接電路和關(guān)鍵源程序。 Abstract: An intelligent voice system using ISD2500 series voice chips based on ATmega8 MCU is described.This system is flexible and easy to upgrade for users,and it has pretty good using foreground. The circuit diagram and the key program are also provided.
上傳時間： 2014-01-22
上傳用戶：Artemis
針對視頻監(jiān)控中攝像機鏡頭光圈大小、圖像聚焦、圖像變焦三項參數(shù)的控制問題，介紹了一種基于89C51單片機的鏡頭控制電路的設(shè)計。 該電路以89C51單片機為核心，結(jié)構(gòu)簡單，成本低廉，控制可靠，實現(xiàn)了智能監(jiān)控終端對攝像參數(shù)的完全控制。 Abstract: The design of camera lens control circuit based on 89C51 is introduced. This circuit can adjust parameters of camera such as aperture, zoom and focusing. The practice of project shows that this circuit has advantages of structure simple, low cost and high reliability.
上傳時間： 2013-10-29
上傳用戶：Wwill
為降低成本和解決現(xiàn)有膜片鉗放大器系統(tǒng)中PC機的干擾問題，研究了一種基于單片機的膜片鉗放大器小系統(tǒng)。該系統(tǒng)采用ADI公司生產(chǎn)的ADuC841作為控制核心，并且配置相應(yīng)的液晶顯示模塊LCM3202401。模擬電路部分采用高輸入阻抗的AD8627實現(xiàn)微電流信號的采集，并由后級電路進行信號的放大和電阻電容的補償。它具有硬件電路簡單、體積小、使用方便的特點。既可以單獨作為小系統(tǒng)實現(xiàn)采集和顯示，也可以通過紅外方式和PC機進行通訊，在PC機上進行信號的處理。 Abstract: In order to reduce cost and resolve the interferential problem with PC in existing patch clamp amplifiers, a small patch clamp amplifier system design based on microcontroller is studied. It adopts a new high performance microconverter ADuC841 by the ADI as the control core in the system, configuring a liquid crystal module LCM3202401. In the analog circuit, AD8627 with high input impedance is used to detect the low current，signal magnification, as well as resistance and capacitance compensation are accomplished by subsequent circuits. It has the advantage of simple hardware circuit design, small volume and convenient operation. It can either be used as an independent system to measure and show signal detected or transmit to PC by infrared ray.
上傳時間： 2013-11-06
上傳用戶：yy_cn
在介紹基于MSP430單片機的指紋保險柜工作原理的基礎(chǔ)上，從系統(tǒng)軟件設(shè)計的角度出發(fā)，詳細介紹了指紋保險柜軟件的總體分析過程、程序結(jié)構(gòu)的設(shè)計以及代碼的編寫，給出了按鍵管理流程和部分源代碼。 Abstract: On basis of the operating principle of MSP430 microcontroller-based fingerprint safe,the general analyzing process,program designing and code compiling of the fingerprint safe software are introduced mainly,and the key-press flows chart and some codes according to the system software designing are put forward.
上傳時間： 2014-12-27
上傳用戶：gaojiao1999
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