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used 12 MAX 197 pairs external signal sampling. Using Fourier
采用12位MAX 197对外部信号采样。采用全周波傅立叶积分算法，对采样信号进行处理，对电力系统的电压有效值、功率等特征量进行实时在线监测；采用全数字测量法测量相位差；并采用自适应技术调整采样间隔，消除非同步采样对计算造成的误差，利用PIC18F458捕获功能实时监测电力系统频率波动，修订采样间隔。分析了各量的测量误差，均达到标准。并提供友好的人机交互界面。-used 12 MAX 197 pairs external signal sampling. Using Fourier-Cycle Integration Algorithm for the sampling signal processing, power systems to the RMS voltage, power characteristics of the volume in real-time on-line monitoring; All digital measuring method phase difference; Adaptive technology and the sampling interval, the elimination of non-synchronous sampling of the calculation error using PIC18F458 capture real-time monitoring of power system frequency fluctuations amended sampling interval. The analysis of the measurement error are up to standard. And to provide a friendly man-machine interface.
- 2022-01-26 06:57:15下载
- 积分：1
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本文介绍了AT89C2051单片机的性能和特点，并在分析了超声波测距原理的基本系统框图。该设计系统经校正后，其测量精度可达0.1米...
本文介绍了AT89C2051单片机的性能和特点，并在分析了超声波测距原理的基本系统框图。该设计系统经校正后，其测量精度可达0.1米-This paper introduces the AT89C2051 performance and features, and the analysis of the ultrasonic distance measurement principle diagram of the basic system. The design of the system calibration, measurement accuracy of 0.1 meters
- 2022-03-25 23:52:10下载
- 积分：1
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本程序主要通过外部中断INT0及3.3端口读取PS2键盘值并通过LCD1602显示，键扫描码的解码通过数组方式解码，程序的解码功能主要针对数字及大小写字母和常用...
本程序主要通过外部中断INT0及3.3端口读取PS2键盘值并通过LCD1602显示，键扫描码的解码通过数组方式解码，程序的解码功能主要针对数字及大小写字母和常用标点符号
硬件描述：PS2键盘的时钟线（clk）接89S51的INT0（P3.2）,数据线data接（P3.3）
LCD的控制端口分别为： RS = P2^7，RW = P2^6，EP = P2^5，数据端口为P0，液晶显示偏压VL必须接
-This procedure mainly through external interrupt INT0 and 3.3 read PS2 keyboard port value through LCD1602 display, key scan code decoder way through an array of decoding, the procedure for decoding function of the major figures and upper and lower case letters and punctuation marks commonly used hardware description: PS2 keyboard clock line (clk) then 89S51 the INT0 (P3.2), data lines data access (P3.3) LCD control port, respectively: RS = P2 ^ 7, RW = P2 ^ 6, EP = P2 ^ 5, data ports for the P0, LCD bias VL must be received
- 2022-03-05 07:16:47下载
- 积分：1
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自制实用51串行编程器,对于学习51单片机和业余开发是完全够用的...
自制实用51串行编程器,对于学习51单片机和业余开发是完全够用的-Home Practical 51 serial programmer for the study 51 of microcontroller and amateur development is complete enough for
- 2022-01-31 23:18:25下载
- 积分：1
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PIC16F877单片机 Boot
PIC16F877单片机 Boot-Loader -PIC16F877 microcontroller Boot- Loader
- 2022-04-12 14:07:27下载
- 积分：1
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利用定时器产生40kHz的空间统计分析超声波测距的C语言程序
超声测距c语言程序 利用定时器产生40khz站空比50 的方波 通过检测收到超声波的时间来测距-Ultrasonic Ranging c language program generated using the timer 40khz space station more than 50 of the square wave by detecting the time to receive the ultrasonic ranging
- 2022-09-16 13:10:03下载
- 积分：1
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SCI的代码
基于飞思卡尔16位单片机的的串行通信SCI程序-SCI code
- 2022-07-14 12:27:00下载
- 积分：1
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51单片机驱动GSM模块（WaveCom Q2403A）C语言源码
51单片机驱动GSM模块（WaveCom Q2403A）C语言源码-51 GSM module (WaveCom indoor) C language source code
- 2022-10-14 01:05:03下载
- 积分：1
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快速付里叶变换子程序所需 RAM 空间以输入的首地址为基址,向增加的方向扩展...
快速付里叶变换子程序所需 RAM 空间以输入的首地址为基址,向增加的方向扩展-Fast Fourier Transform subroutine RAM space required to input the first address of the site was to increase the direction of expansion
- 2022-12-04 01:20:03下载
- 积分：1
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samsung arm2440开发板 数模转换测试程序，程序开发平台为qt平台开发环境为linux系统
samsung arm2440开发板 数模转换测试程序，程序开发平台为qt平台开发环境为linux系统-samsung arm2440 development board digital-to-analog conversion test procedures, procedures for qt platform development platform development environment for linux system
- 2022-08-13 11:54:34下载
- 积分：1
