Spring中提供一些Aware相关的接口,BeanFactoryAware、 ApplicationContextAware、ResourceLoaderAware、ServletContextAware等等,其中最常用到的是ApplicationContextAware。实现ApplicationContextAware的Bean,在Bean被初始后,将会被注入 ApplicationContext的实例。ApplicationContextAware提供了publishEvent()方法,实现observer(观察者)设计模式的事件传播机,提供了针对Bean的事件传播功能。通过Application.publishEvent方法,我们可以将事件通知系统内所有的ApplicationListener。
上传时间: 2014-01-01
上传用户:erkuizhang
face detection Face detection can be regarded as a more general case of face localization In face localization, the task is to find the locations and sizes of a known number of faces (usually one). In face detection, one does not have this additional information. Early face-detection algorithms focused on the detection of frontal human faces, whereas newer algorithms attempt to solve the more general and difficult problem of multi-view face detection. That is, the detection of faces that are either rotated along the axis from the face to the observer (in-plane rotation), or rotated along the vertical or left-right axis (out-of-plane rotation),or both.
标签: detection face localization regarded
上传时间: 2014-01-10
上传用户:wfeel
关于齿隙辨识必备论文参考(它的英文文献名字:observer-based Compensation Control of Servo Systems with Backlash),有预补偿,伺服控制系统介绍,观测器设计等。
上传时间: 2019-05-25
上传用户:峰峰学长
Abstract: A sliding mode observer and fractional-order phase-locked loop (FO-PLL) method is proposed for the sensorless speed control of a permanent magnet synchronous motor (PMSM).The saturation function is adopted in order to reduce the chattering phenomenon caused by the sliding mode observer. In this proposed FO-PLL, method, a regulable fractional order r is involved, which means that the FO-PLL provides an extra degree of freedom. In fact, the conventional phase-locked loop (PLL) applied in sensorless PMSM control can be seen as a special case of the proposed FO-PLL. By selecting a proper fractional order r a better performance may be achieved. The computer simulation results demonstrate the effectiveness of the proposed method.Key words: fractional calculus; fractional order phase-locked loop; sensorless control; sliding mode observer; permanent magnet synchronous motor; speed controll
上传时间: 2022-06-18
上传用户:
VIP专区-嵌入式/单片机编程源码精选合集系列(60)资源包含以下内容:1. 16 * 16 的127个ascii码的点阵字库.2. ARM MP3解码源代码 实现MP3播放应用.3. 本文介基于CPLD和USB的多路温度数据采集系统.4. 89c51+sj1000 的发送例程 can2.0 扩展帧.5. 一个很好的串口类.6. cpld状态及设计。 很好的文章。 要设计vhdl状态机的话.7. c51formenu.c该文件是一个用c51编写一个menu的例子..8. MSP430F449 子程序,MSP-FET430P440 Demo - USART1 UART 38400 Echo ISR, DCO SMCLK..9. MSP-FET430P440 Demo - WDT Toggle P5.1 Interval overflow ISR, DCO SMCLK.10. MSP-FET430P440 Demo - WDT Toggle P5.1 Interval overflow ISR, 32kHz ACLK.11. MSP-FET430P440 Demo - BasicTimer Toggle P5.1 using ISR, DCO SMCLK.12. MSP-FET430P440 Demo - BasicTimer Toggle P5.1 using ISR, 32kHz SMCLK.13. MSP-FET430P440 Demo - Timer_A PWM TA1-2 upmode, DCO SMCLK.14. 恒颐arm9原理图(protel),直接可用.15. protel中CPLD器件的库可以方便的放进protel中.16. 这是一个以太网接口RTL8019AS和电路图一份.希望对大家有点参考.17. 关于lpc2292外接ds1302时钟芯片的驱动程序.18. 本文分别以GPI0口直接连接、串并转换连接、CPLD分部连接三种方法阐述了无外部总线的Philips ARM微控制器LPC2l0X与点阵图形液晶显示器的接口设计,并给出了硬件电路框图和主要程序。.19. arm 板的原理图 是三星的.20. BSP-15:高性能媒体处理DSP芯片开放指南说明文档.21. 如果您刚接触嵌入式开发.22. TMS320LF2407A原理图.23. 嵌入式arm-linux 2.6内核 s3c2410 的i2c总线驱动程序.24. 输入两组数.25. 应用VHDL、CPLD、EDA开发软件设计数字系统,能够显著增强设计的灵活性,提高产品的性能,减轻设计的工作量,缩短设计周期。传统的“固定功能集成块+连线”的设计方法正逐步地缩小应用范围,而基于芯片的.26. 使用lpc2114arm7内核的两个工程实例,采用ads编译器进行编译.27. 嵌入式系统开发的中英文词汇表并有详细注解,具有参考价值.28. 本程序仅供广大电子爱好者制作MP3学习和参考使用.29. arm-linux下.30. 适用于ucosii操作系统的文件系统.31. LCD 控制源代码.32. 用java写的GUI Analog Clock,用上了observer,可以更改时间.33. s3c2410平台 直流电机有用的demo!大家共享.34. s3c2410平台 步进电机的demo.35. s3c2410平台can总线的一个例子.36. 音乐程序主要是控制频率而达到效果.37. 240x128 graphic mode/Driver ic:t6963C writed by hawk liu 2001 Aug. 22 1/128 duty 1/12.3 bia.38. USB芯片CH375EVT 资料源程序.39. 51 模拟SPI 51 模拟SPI 51 模拟SPI 51 模拟SPI.40. 基于时钟芯片DSC12C887的实时时钟系统.
上传时间: 2013-04-15
上传用户:eeworm