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基于AT89C51单片机的音乐盒
基于AT89C51系列单片机的音乐盒，依据单片机的定时中断以及蜂鸣器的发声原理，通过KEIL编译程序，并将其通过烧写工具下载到单片机实验箱中，从而设计制作出一个八音盒。此程序使用C语言编写，实现对单片机的控制。
- 2022-02-02 00:08:28下载
- 积分：1
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疲劳检测
说明： 虽然 AdaBoost 算法的检测速度快，误识率低，但是在样本的权重更新过程中，对于分类错误样本中的正、负样本没有加以区分，不利于提高正样本的识别率。本文提出一种新的权重更新方法，对于分类错误的样本，对判断错误的正样本给更高的权重，使得算法在下一轮迭代时，更加关注对分类错误的正样本的学习，从而提高对正样本（人眼）的检测率。采用基于最小二乘法对眼部的外轮廓进行椭圆拟合，根据拟合椭圆的参数来判断眼睛的睁闭状态；采用结合 PERCLOS 和眨眼频率的方法，对疲劳状态进行检测。(Although AdaBoost algorithm has fast detection speed and low false recognition rate, in the process of sample weight updating, there is no distinction between positive and negative samples in classification error samples, which is not conducive to improving the recognition rate of positive samples. In this paper, a new weight updating method is proposed, which gives higher weight to the positive samples of classification errors, so that the algorithm pays more attention to the learning of the positive samples of classification errors in the next iteration, so as to improve the detection rate of the positive samples (human eyes). Based on the least square method, the eye contour is fitted with ellipse, and the opening and closing state of eyes is judged according to the parameters of fitting ellipse; the fatigue state is detected by combining PERCLOS and blinking frequency..)
- 2020-06-27 02:57:40下载
- 积分：1
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linux C编程手册,相信一般的程序员都需要它
linux C编程手册,相信一般的程序员都需要它-linux C programming manual, I believe that programmers generally need it
- 2022-01-21 18:52:47下载
- 积分：1
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定义一个抽象类的CShape,包括纯虚数Area(用来计算面积）和SetData（用来重设形状大小）。然后派生出三角形CTriangle类、矩形CRect类、圆...
定义一个抽象类的CShape,包括纯虚数Area(用来计算面积）和SetData（用来重设形状大小）。然后派生出三角形CTriangle类、矩形CRect类、圆CCircle类，分别求其面积。最后定义一个CArea类，计算这几个形状的面积之和，各形状的数据通过CArea类构造函数或成员函数来设置。-Defines an abstract class CShape, including the pure imaginary number Area (used to calculate the area) and SetData (used to reset the shape, size). Then the triangle CTriangle derived class, rectangle CRect class, round CCircle categories, seeking its size. The final definition of a CArea class, calculate the size of the sum of several shapes, each shape data through CArea class constructor or member function to set up.
- 2022-05-05 02:27:06下载
- 积分：1
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123
csv文件读取和存储，可用于显示在QT建的表格中(csv file is read and stored, can be used to display the built form QT)
- 2020-11-02 19:29:56下载
- 积分：1
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2-3. Akolade
说明： powerpoint about akolade from my college
- 2019-05-31 17:07:57下载
- 积分：1
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deituiCMS_feilei_v1.3
说明： 在线上门O2O系统，，PC+WAP+微信端等功能，在BAOCMS基础上二次开发的东西内核是BAOCMS 最新版内核，修复了所有的功能BUG，本源码可以微信支付定金，可以申请退款，商户端可以操作退款，操作接单等等……功能高级，版面完美，含员工端抢单、商户端管理、外卖、酒店、农家乐、跑腿等等功能，支持分站(On-line door-to-door O2 O system, PC+WAP+micro-messenger and other functions, on the basis of BAOCMS, the second development of the East-West Core is the latest version of BAOCMS kernel, repair all the functions of BUG, the source code can pay deposit by Wechat, can apply for refund, business end can operate refund, operation order, etc. High-level functions, perfect layout, including staff side to grab orders, business end management, takeout, hotels, farmhouse music, running errands and other functions, support sub-stations)
- 2020-06-21 01:40:02下载
- 积分：1
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adcpprogram
用matlab读取ADCP的mat类型的数据文件，形成execl表格(Use matlab to read the mat type data files of ADCP to form EXECL form.)
- 2021-01-23 18:28:45下载
- 积分：1
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以前做的一个数字钟
以前做的一个数字钟-before doing a digital clock
- 2023-04-09 03:15:03下载
- 积分：1
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yncipsulation-CPETT
源程序,,关于制作漂亮界面的,,可以产考一下,哈哈哈(Source program, about making a beautiful interface, you can produce a test, ha)
- 2018-12-24 04:40:29下载
- 积分：1
