袖珍型電子日歷及8路長時間定時控制器程序
上傳時間: 2013-10-29
上傳用戶:agent
單片機設計的音樂噴泉控制器
上傳時間: 2014-11-30
上傳用戶:lxm
基于單片機控制的電梯控制器_李海濤
上傳時間: 2014-12-26
上傳用戶:gonuiln
用單片機控制步進電機
上傳時間: 2013-10-30
上傳用戶:hphh
為了提高傳統溫度控制系統的性能,將PID控制理論與嵌入式系統相結合,采用瑞薩電子公司的H8S/2166作為核心處理器,AD公司的AD7705以及熱敏電阻溫度傳感器作為溫度檢測單元,利用4×6小鍵盤、LCD顯示器和S1D13305液晶控制器達到良好的人機交互,設計出了一個應用于化工領域的嵌入式實時溫度控制系統。相比于傳統溫度控制系統,該系統提供了更強的計算能力和可擴展能力,采用增量PID控制算法實現復雜控制。通過實驗,該系統能達到0.1 ℃的溫度控制精度以及小于120 s的溫度穩定時間。 Abstract: In order to improve the performance of conventional temperature control system, combining PID control theory with embedded systems, using the Renesas Electronics Corp. H8S/2166 micro-controller as a core processors, AD7705 and thermistor temperature sensor as a temperature detection unit and 4×6 small keyboard, LCD and S1D13305 LCD controller as a good human-computer interaction, this paper designed an embedded real-time temperature control system which is applied in chemical industry. Compared with conventional temperature control system, this system provides more computing power and extensibility, and adopts PID control algorithm for complex control. Through the experiment, the system can reach temperature control accuracy of 0.1 ℃ and temperature stabilization time of less than 120 seconds.
上傳時間: 2014-12-26
上傳用戶:003030
當執行機構需要的不是控制量的絕對值,而是控制量的增量(例如去驅動 步進電動機)時,需要用PID的“增量算法”。 增量式PID控制算法可以通過(2-4)式推導出。由(2-4)可以得到控制器 的第k-1個采樣時刻的輸出值為:
上傳時間: 2013-10-11
上傳用戶:waizhang
首先研究CAN總線和SAE J1939協議,提出一種基于MC9S12HZ256微控制器的總線式汽車數字儀表解決方案。詳細介紹SAE J1939協議的報文幀格式及應用層協議中發動機相關參數的定義,以及步進電機及其驅動和車速信號的處理方法。該數字儀表系統硬件平臺由微處理器和信號采集和信息處理及顯示等模塊組成。軟件設計部分編程實現了對CAN總線和各傳感器數據的讀取、處理。該系統能夠實時反映車輛工況。 Abstract: In this paper,CAN bus and SAE J1939protocol are researched,and a vehicle digital instrument solution based on MC9S12HZ256MCU is proposed.The message frame format and some engine-related parameters’definition in SAE J1939application layer protocol are introduced in detail.Stepper motor and its driver,the methods of speed signal process-ing are also introduced.The hardware platform of vehicle digital instrument is composed by MCU,signal acquisition mod-ule,and signal processing and displaying module.Data receiving and processing from CAN bus and sensors are accom-plished by programming,and vehicle condition can be reflected in real-time.
上傳時間: 2013-10-20
上傳用戶:huannan88
介紹基于VHDL的微型打印機控制器的設計。論述了微型打印機的基本原理,以及實現控制器的VHDL語言設計。打印機的數據來自系統中的存儲模塊,根據需要控制打印。該微型打印機控制器可取代傳統的微型打印機,且抗干擾性好,可靠性高,具有較強的移植性,稍加改動就可應用于不同場合。 Abstract: This paper introduced the design method of micro printer controller based on VHDL.The basic principles of microprinter is explained,as well as the realization of the controller by VHDL language.The printer data is from the system memory modules,can control printer.The design of microprinter controller has antigood and high reliability,it can replace the traditional printer.The controller has very good portability,and need little modify that can use in different situation.
上傳時間: 2013-11-03
上傳用戶:dudu1210004
應用德國Micronas公司的CDC3207G微控制器開發了一款汽車儀表板系統。詳細地介紹了該系統的硬件原理,以及步進電機,音頻控制,LCD顯示,LED指示燈和報警燈等幾個模塊的實現方法。應用μC/OS-II實時操作系統開發軟件。著重介紹了啟動代碼的設計和任務的規劃。 Abstract: A dashboard system is developed by using CDC3207G microcontroller made by Micronas.The hardware of the sys-tem and the realization of the step motor module,audio module,LCD display and LED indicator and alarm module are ex-plained in detail.The μC/OS-II real-time operating system is used for the software development and the starting code design and the task planning is explained specifically.
上傳時間: 2013-10-26
上傳用戶:x4587
P89V51RD2是PHILIPS公司推出的51系列的新型微控制器,它包含64KBFlash和1024字節的數據RAM,支持并行和串行的在系統編程(ISP)和在應用中編程(IAP),具有SPI和增強型UART,包含一個PCA(可編程計數器陣列),具有PWM和捕獲/比較功能。該芯片有一個最突出的特點就是帶有自調試功能(SoftICE),該功能使得芯片可以在KeilµVision2編程環境下用KeilMonitor-51Driver直接調試程序。 為幫助用戶盡快熟悉并掌握P89V51RD2系列單片機的SoftICE特性,作者用該單片機制作了一個簡易的仿真器,配合使用KeilµVision2的硬件仿真環境,可實現對程序的單步仿真、多步仿真及全速運行下的仿真。
上傳時間: 2013-11-09
上傳用戶:meiguiweishi