学生管理系统

说明：  STM32关于体温传感器hal库的说明以及源码和用例实例(STM32 About Hal Library of Body Temperature Sensor)

在程序启动时弹出文件打开对话框，VC++编程精选学习源码，很好的参考资料。(In the open dialog box when the program starts up the file, select learning VC++ programming source code, a good reference.)

利用片内定时器/计数器来进行计时时间间隔1S(Chip timer/counter to the the timing time interval 1S)

基于51单片机，芯片STC89C52,用1602液晶屏红外解码实验源代码(Based on 51 MCU, chip STC89C52, experiment source code of infrared decoding with 1602 LCD screen)

说明：  VC6.0 读写matlab7.0的mat文件.分享此段代码，运行成功。(read the mat file of the matlab7.0,under the vc6.0)

face detection soruce

模拟一个飞机票订票和退票系统 假定某民航机场有M个航次的班机，每个航次都只到达一个目的地。试为该机场售票处设计一个自动订票和退票系统。 要求系统具有下列功能： （1）订票。若该航次余票数大于等于乘客订票数，则在该航次的乘客表（按乘客姓氏字母顺序连接）中，插入订票乘客的信息项，并修改该航次有关数据，否则，给出相应的提示信息。 （2）退票。若该航次当前退票数小于等于乘客原订票数，则在相应的乘客表中找到该乘客项，修改该航次及乘客表中有关数据。当由于退票，使得该乘客的订票数为零时，要从乘客表中撤消该乘客项；否则，给出相应的提示信息。 （3）将某航次的余票数恢复初值――该航次的最大客票数。 当客户订票数要求不能满足时，系统也可想客户提供到达同一目的地的其他航线情况。-simulated a plane ticket booking system and refund the assumption that a civil airport M voyages flights, each voyage only reach a destination. Trial Design for the airport ticket booking and an automatic refund system. System requirements with the following functions : (a) booking. If the voyage I mean votes greater than the number of passengers booking, the passenger voyage (by passengers connecting in alphabetical order), insert the passenger booking information, and modify the voyage of the data, given the corresponding message. (2) Refund. If the voyage is less than the current refund equal to the number of passengers scheduled votes, the passengers in t

连接ACCESS数据库的功能：首先导入msado15.dll，然后通过连接字符串来连接一个ACCESS数据库。 第一步，引入ADO的类。编辑好该类的头文件，然后封装该类的数据库对象。 第二步，获取记录数据。打开记录集，然后执行SQL命令。

allan 方差（阿伦方差）是David AIlan于1966年提出的，最初该方法是用于分析振荡器的相位和频率不稳定性，高稳定度振荡器的频率稳定度的时域表征目前均采用Allan方差。由于陀螺等惯性传感器本身也具有振荡器的特征，因此该方法随后被广泛应用于各种惯性传感器的随机误差辨识中。(Allan variance (Allen variance) was proposed by David Allan in 1966. Initially this method was used to analyze the phase and frequency instability of oscillators. The time-domain characterization of the frequency stability of high-stability oscillators is currently based on Allan variance. Since gyros and other inertial sensors also have the characteristics of oscillators, the method is subsequently widely used in the random error identification of various inertial sensors.)

80c51 单片机简单程序流水灯 用kail开发的(The 80c51 microcontroller simple program light water kail development)