-
Infrared-alarm-system
本论文设计了由AT89C52单片机为控制核心,用红外线为监测装置的防盗报警系统。该系统中红外对管作为红外线的发射和接收部分。发射部分采用红外发光二极管，而使用光敏三极管作为接收部分，接收红外发光二极管发出的红外线（不可见光）。单片机将通过内部的软件系统检测到接收管的导通或截止状态,并根据检测到的信号状态,进行判断并输出报警信号, 直至按复位按钮或电源开关。声光报警信号由9014三极管驱动构成声光报警电路,进行声光同时报警。电源部分采用变压器将220V交流市经变压器降压，桥式整流器整流，电解电容滤波，三端稳压管78L05稳压，最后得到整机要求的+5V稳定直流电源。实验表明，本系统成功运行。(This thesis is designed by AT89C52 microcontroller as the control center for monitoring device with infrared burglar alarm system. The system of infrared tube as infrared transmitting and receiving section. Emitting portion using infrared light emitting diode, a phototransistor as a receiving portion to receive the infrared ray emitted from the infrared light emitting diodes (not visible). The microcontroller will be detected by the internal software system to the turned on or off state of the receiver tube, and according to the detected signal state, to determine and output an alarm signal until a reset button or the power switch. Audible and visual alarm signal by 9014 transistor drive constitute sound and light alarm circuit, sound and light alarm at the same time. The power part of the transformer 220V AC City by the step-down transformer, bridge rectifier rectifier, electrolytic capacitor filter, three-terminal regulator 78L05 regulator, and finally get the machine requirements+5V)
- 2012-10-08 14:35:19下载
- 积分：1
-
freemodbus-v1.5.0
说明： freemodbus-v1.5.0无改动官方源码，可移植(Freemodbus-v1.5.0 Portable without changing official source code)
- 2020-06-18 00:00:01下载
- 积分：1
-
iSecurityCEBBANK
(付费开通帐号) ，上传完成后请等待几分钟到一个小时，等审核人员审核完成后才能开通下载，超过一个小时未开通的请在留言薄里留言 (上传失败怎么办)((pay to open the account), please wait a few minutes to an hour after the completion of the upload, wait for the auditor to review the completion of the download, more than one hour is not open in the message book, please leave a message (how to upload failure))
- 2018-05-19 22:19:05下载
- 积分：1
-
12864bingxing
说明： １２８６４并行的程序，Ｃ编译环境，希望对大家有用(12864 parallel process, C compiler environment, we hope to be useful)
- 2009-08-22 11:25:49下载
- 积分：1
-
demo
非接触式IC卡车MIFARE ONE DEMO 程序(Non-contact IC trucks MIFARE ONE DEMO procedures)
- 2007-12-01 14:07:02下载
- 积分：1
-
CMX868
cmx868的应用程序
用于电话机的缴费终端的设计
经过调试 可以应用欢迎大家下载 (cmx868 application fee for the telephone terminal can be applied to the design after debugging welcome you to download)
- 2020-09-03 12:58:07下载
- 积分：1
-
firmware
说明： 这是我在学习红外遥控接收时写的代码，可能有一点用！(This is my infrared remote control receiver in learning to write code when there may be a point to use!)
- 2008-11-16 22:46:38下载
- 积分：1
-
stepper-motor
stepper motor example with proteus
- 2012-07-05 04:01:09下载
- 积分：1
-
juzhenjianpan0-f
基于51单片机开发板，矩阵键盘按键在数码管上显示0~F(Based on 51 MCU development board, matrix keyboard keys on the digital display 0 ~ F)
- 2013-07-10 16:50:59下载
- 积分：1
-
DFIG_2010_11
to overcome the harmonic To understand the different ways to mitigate voltage sags,
distortion during mitigation process. In this study, the DVR various factors contributing to the problem have to be
system is simulated using PSCAD software. This device will be
connected in series to the
- 2021-03-12 19:29:24下载
- 积分：1
