生活中許多目標的高度和水平距離需要進行測量。目前主要的測量方法,仍以傳統的皮尺丈量為主,測量效率不高,有時還很不方便,沒有技術成熟的數字式測高測距產品。以基本的數學方法為理論依據,利用遙控小車做為載體,采用角度傳感器測量角度、霍爾傳感器測量水平距離等,通過單片機LM3S615進行數據計算,實現了對待測目標物體的高度、水平距離等數據的快速、精確和數字式的測量,高度測量精度可達99.06%,水平測量精度則可達98.06%。 Abstract: In our lives, the height and horizontal distance of some goals are needed to be measured. Because the currently used methods are still traditional tape-based measuring methods, and the measuring efficiency is low and inconvenient so some kinds of digital and portable measuring methods or instruments are needed. Based on the basic math theory, this paper designed and manufactured a portable, digital and remote controlled measuring mobile small vehicle, which assembled with angle measuring sensor for angle measurement and Hall sensor for horizontal distance measuring. MCU LM3S615 calculated the height and horizontal distance data gotten from these sensors. The measuring process is simple, the measuring results are more accurate and the measuring efficiency is higher than traditional measure instruments. The accuracy of height and distance measurement can reach 99.06% and 98.06%.
上傳時間: 2013-10-30
上傳用戶:jackandlee
針對目前汽車追尾事件頻發問題,提出一種防汽車車前和車后追尾的安全裝置設計。該設計以高性能、低功耗的8位AVR微處理器ATmega8L為核心,結合霍爾式車速傳感器、激光雷達測距裝置和MMA7260QT加速度傳感器,能夠兼顧車前和車后,摒棄以往設計中只考慮車前或車后單一性缺點,尤其適用于高速、夜晚或新手行車。 Abstract: Aiming at the high frequency of vehicle rear-end collision,a safe device design of anti-vehicle rear-end collision is presented.In the design,the high-performance,low-power8-bit AVR microprocessor ATmega8L is utilized as a core combined with Hall-type speed sensor,laser-radar ranging devices and the acceleration sensor MMA7260QT.The design considers both the front and back of a car,and overcomes the drawbacks of former designs in which only the front or the back of the car is considered,so it is especially suitable for high-speed,night or the beginner’s driving.
上傳時間: 2013-10-14
上傳用戶:GavinNeko
介紹了采用ATmega48單片機實現三相無刷直流電機控制器的方法。利用Atmega48獲得帶死區的脈寬調制(PWM)、霍爾傳感器的換相處理、正弦驅動信號的產生和電機轉速的控制等功能。采用該方法的優點是所需的外圍器件少,成本低。 Abstract: The method of 3-phase brushless DC motor control based on ATmega48 is presented in this paper.The system uses ATmega48 to generate PWM signals with dead-time, hall sensors signals commutation,sine driving signal and rotational speed of motor.Using this method,the needed external devices are few, the cost is low.
上傳時間: 2013-12-09
上傳用戶:330402686
程序是我用DSP2812開發的無刷直流電機控制程序,程序是在TI公司的BLDC3_1軟件的基礎上構造的,實現了無刷直流電機的速度環PID控制,并且可以進行無刷直流電機的高級控制算法研究,擴展及其方便。 其中,無刷直流電機控制系統是有HALL傳感器的系統,電機是24V3000rpm驅動板是類似TI公司的DMC1500板卡。歡迎交流
上傳時間: 2014-01-10
上傳用戶:wsf950131
附件程序是我用DSP2812開發的無刷直流電機控制程序,程序是在TI公司的BLDC3_1軟件的基礎上構造的,實現了無刷直流電機的速度環PID控制,效果可以。 其中,無刷直流電機是有HALL傳感器的系統,所以在轉速測量上還需要進一步的改進(如果要求精確的話)。電機是24V3000rpm~~~;驅動板是類似TI公司的DMC1500?板卡,所以可以參考它的說明(只針對信號的連接的參考)
上傳時間: 2015-07-19
上傳用戶:cuibaigao
電信運營商收入保障系統設計與實現 本文研究領域涉及嵌入式系統開發流程和方法、嵌入式移動通信終端系統軟硬件框架、NOR Flash芯片體系結構、Flash芯片驅動軟件的自適應算法、Flash映像文件空間壓縮算法、霍爾傳感器(Hall Sensor)驅動軟件原理和實現、LCD驅動軟件設計、LCD顏色校正算法和實現、LCD抗靜電硬件保護與軟件恢復序列的實現。
上傳時間: 2013-12-13
上傳用戶:mikesering
對于實時DSP系統的C算法介紹,非常實用。Prentics Hall Press 的原版,掃描版。
上傳時間: 2017-04-26
上傳用戶:源碼3
基于ATMEGA48單片機的無刷電機控制程序,基于HALL傳感器
上傳時間: 2014-11-08
上傳用戶:coeus
該代碼用于視頻中背景與前景的分離 Run "TestGoDec" firstly for testing the background modeling by GoDec on Hall dataset. Run "TestSSGoDec" firstly for testing the background modeling by Semi-Soft GoDec on Hall dataset. The time cost on my PC is 8.75s, which is >4 times faster than ordinary GoDec.
標簽: GoDec
上傳時間: 2016-04-25
上傳用戶:shiaijianjun
在使用ST FOC電機庫時,當使用Hall信號作為位置信號時,需要輸入同步電角度數據,這個數據根據當前使用電機的特性進行輸入,會在每次Hall信號變化時同步電角度,如果角度偏差較大時會影響控制效果,可能帶來效率或者電機的震蕩,初始測試還是有必要的,本文詳細說明測試注意事項以及測試方法。
標簽: 電機控制
上傳時間: 2022-02-22
上傳用戶: