介紹一種以MSP430單片機(jī)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(shí)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(shí)間： 2013-10-28
上傳用戶：dbs012280
介紹一種基于單片機(jī)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(jì)算機(jī)聯(lián)網(wǎng)功能，各測量點(diǎn)可以單獨(dú)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(diǎn)。 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(biāo)簽： 多路 溫度采集 監(jiān)控系統(tǒng)
上傳時(shí)間： 2013-10-23
上傳用戶：bjgaofei
出了一種利用ATmega8單片機(jī)對ISD2500系列語音芯片進(jìn)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.
標(biāo)簽： ATmega8 2500 ISD 智能語音
上傳時(shí)間： 2014-01-22
上傳用戶：Artemis
針對視頻監(jiān)控中攝像機(jī)鏡頭光圈大小、圖像聚焦、圖像變焦三項(xiàng)參數(shù)的控制問題，介紹了一種基于89C51單片機(jī)的鏡頭控制電路的設(shè)計(jì)。 該電路以89C51單片機(jī)為核心，結(jié)構(gòu)簡單，成本低廉，控制可靠，實(shí)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(shí)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(jī)的干擾問題，研究了一種基于單片機(jī)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(shí)現(xiàn)微電流信號的采集，并由后級電路進(jìn)行信號的放大和電阻電容的補(bǔ)償。它具有硬件電路簡單、體積小、使用方便的特點(diǎn)。既可以單獨(dú)作為小系統(tǒng)實(shí)現(xiàn)采集和顯示，也可以通過紅外方式和PC機(jī)進(jìn)行通訊，在PC機(jī)上進(jìn)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(shí)間： 2013-11-06
上傳用戶：yy_cn
在介紹基于MSP430單片機(jī)的指紋保險(xiǎn)柜工作原理的基礎(chǔ)上，從系統(tǒng)軟件設(shè)計(jì)的角度出發(fā)，詳細(xì)介紹了指紋保險(xiǎn)柜軟件的總體分析過程、程序結(jié)構(gòu)的設(shè)計(jì)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(shí)間： 2014-12-27
上傳用戶：gaojiao1999
介紹基于ATmega8型單片機(jī)的溫度測量及加熱控制系統(tǒng)。分析系統(tǒng)的工作原理，詳盡討論系統(tǒng)的硬件電路和軟件流程。實(shí)驗(yàn)證明，該系統(tǒng)工作可靠，穩(wěn)定性高。 Abstract: The new temperature measuring and heating control system based on ATmega8 MCU is introduced.The system’s working principles is analyzed.The design principles of hardware and software are also discussed in detail.This system has been testified and it works steady and reliably.
標(biāo)簽： ATmgea8 單片機(jī) 加熱控制
上傳時(shí)間： 2013-11-21
上傳用戶：caiguoqing
對于瀝青混凝土攤鋪機(jī)自動找平控制系統(tǒng)來說，數(shù)字式控制系統(tǒng)的研制是目前的一個(gè)方向。介紹了一種基于CAN總線的數(shù)字式自動找平控制系統(tǒng)。該系統(tǒng)以CAN總線作為通信方式，PWM控制信號通過C8051F040單片機(jī)內(nèi)部PCA可編程計(jì)數(shù)器陣列產(chǎn)生，并具有結(jié)構(gòu)簡單、信號穩(wěn)定、實(shí)時(shí)性強(qiáng)、易擴(kuò)展的特點(diǎn)。通過硬件實(shí)現(xiàn)和系統(tǒng)運(yùn)行達(dá)到了比較理想的控制效果，驗(yàn)證了系統(tǒng)的可行性。 Abstract: A digital auto-leveling control system based on CAN Bus is introduced.It uses CAN Bus as the method of communication and creates PWM signals by programmable counter array in C8051F040 microcontroller. The system is simple, stable, real-time and expansive.
標(biāo)簽： CAN 總線 數(shù)字式 控制系統(tǒng)設(shè)計(jì)
上傳時(shí)間： 2013-10-09
上傳用戶：ligi201200
介紹以P87LPC764型單片機(jī)為核心的延時(shí)型漏電繼電器設(shè)計(jì)方案。該方案可供用戶選擇實(shí)現(xiàn)額定動作電流和5倍額定動作電流下不同的延時(shí)動作時(shí)間，并有重合閘設(shè)定選擇功能。解決了以往傳統(tǒng)分立元件帶來的延時(shí)時(shí)間離散性大且不易實(shí)現(xiàn)的弊端。 Abstract: In this paper, the delay leakage relay based on P87LPC764 is introduced in detail. This system provides different relay times at rating current and 5× rating current for users and also offers superposition brake set selection function. So that it resolves many traditional problems.
上傳時(shí)間： 2013-11-08
上傳用戶：zhaiye
介紹了CAN總線和P87C591單片機(jī)的特點(diǎn)，給出了基于P87C591單片機(jī)的信號采集節(jié)點(diǎn)的軟、硬件設(shè)計(jì)，指出了硬件電路設(shè)計(jì)中應(yīng)注意的問題，在軟件設(shè)計(jì)中重點(diǎn)介紹了節(jié)點(diǎn)初始化、報(bào)文發(fā)送和報(bào)文接收等子程序。 Abstract: The features of CAN Bus and the microcontroller P87C591 are introduced, and the design of hardware circuit and soft configuration of the signals collection node based on P87C591 are presented. The problems in designing hardware circuit are discussed.Initialization subprogram, transmiting subprogram and receiving subprogram are emphasized in soft configuration.
標(biāo)簽： P87C591 信號采集 節(jié)點(diǎn)
上傳時(shí)間： 2013-11-03
上傳用戶：BIBI
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