入室抢劫事件屡见不鲜,针对此现象进行分析不难发现,造成失窃事件的极大原因是人们慵懒和意识差等不良性格造成习惯性不锁门.本文以STC89C52单片机为基础,设计了一种基于人体红外传感器的自动关门锁门装置,来解决此类问题.The incidents of burglary are so common. It is not difficult to find that the main reason for the burglary is the habit of unlocking of doors caused by people's laziness and poor consciousness. Based on the single chip microcomputer of STC89C52, a device used with infrared sensor of human body is introduced in this paper, which can achieve the effect of automatic closing and locking doors.
上传时间： 2022-03-27
上传用户：canderile
LED 线阵显示装置, 分为 LED 线性旋转显示主机和图文录入器两部分。主机用直流电机带动由红绿 LED 组成的线阵旋转, 同时线阵按照时序依次切换显示状态, 在固定区域利用视觉暂留效果形成 16×16 点阵, 用以显示图文;图文录入器用 HMI 触控屏作为人机交互界面, 实现图文录入和回放功能。主机与图文录入器通过无线通信方式进行信息交互,可由图文录入器控制主机切换不同工作任务, 以及改变线阵显示内容。The LED linear array display device is divided into two parts:the one is the main unit used to display content,and the other one is used to input the contents.The main unit is driven by a DC motor to rotate the linear array composed by red and green light emitting diodes.At the same time,the 16×16 dot matrix that switching the display state according to the time sequence on the main unit displays pictures and texts in the fixed area,by using the visual temporary effect.The HMI touch screen is used as human machine interface to realize the function that input and playback pictures and texts.The two parts of the device communicate with each other through wireless communication.The image and text input controller can control the main unit to switch different tasks and change the content of linear array displayed.
标签： stc12c5a60s2 单片机 led
上传时间： 2022-03-28
上传用户：jiabin
文章提出了一种基于AT89S51单片机的智能家居系统的设计,该系统具有室内煤气以及烟雾的检测、家庭室内防盗等功能。文章详细分析了系统的总体设计,详尽分析并设计了煤气传感器模块、烟雾传感器模块、人体红外感应传感器模块、报警模块等各硬件部分,并利用PROTUES软件进行了系统仿真。仿真结果证明:系统具有成本低、效率高、操作方便等优点,达到了预期设计的效果。This paper presents the design of an intelligent home system based on AT89S51 microcontroller.The system has the functions of detecting indoor gas and smoke,guarding against theft in the home,and so on.The overall design of the system is analyzed in detail.The gas sensor module,smoke sensor module,human infrared sensor module,alarm module and other hardware parts are analyzed and designed in detail,and the system simulation is carried out using PROTUES software.The simulation results show that the system has the advantages of low cost,high efficiency,convenient operation and so on,and achieves the expected design effect.
上传时间： 2022-03-28
上传用户：蓝天小雨
HC-SR501 High Sensitivity Human Infrared Sensor Module Pyroelectric PCB.doc人体红外感应原理图
标签： 红外感应
上传时间： 2022-04-18
上传用户：sheng199241
【摘要】：随着USB接口在计算机业界应用越来越广泛，基于USB的接口开发显得越来越具有现实意义。随着客户对系统数据采集速度要求的不断提高，USB以其使用方便、易于扩展、速度快等优点而越来越多的被应用于各种人机接口设备中。本设计提出了一种USB接口的HID数据通讯接口设计方案，USB接口芯片采用的是PHILIP的PDIUSBD12，微控器是宏晶科技的STC89C52RC。该方案具有器件通用、成本低、方便焊接调试等特点。由于本设计采用了PDIUSBD12接口芯片，通过改变微控器的代码可以制作成各种标准的USB设备。本设计完成了一种典型的HID设备驱动程序的开发，PC机无需额外加装驱动便可实现和USB设备之间的通讯。而且经过典型HID设备的枚举过程，还可用于对USB协议的熟悉和学习。上位机软件部分，采用了VisualC++6.0编写HID设备的控制程序，此控制程序和HID下位机设备构成了完整的USB控制系统。在此基础上，本设计还增加了简单的音乐播放功能，可以打开并播放格式为mp3和wma的音频文件，还可以暂停、停止、选择播放曲目、调节音量等；在音频播放时HID设备彩灯可以实时显示音频的频谱。这在验证USB系统的同时，大大增加了控制的趣味性。验证结果表明按照该方案设计的数据通讯接口和HID设计运行稳定可靠。USB是一种计算机和外部设备进行通讯连接的接口.USB的出现的目的是取代现在计算机接口，简化计算机与外部设备的连接过程，使计算机的扩展更加方便。它使得计算机和外部设备的连接十分方便。目前，各种计算机外部设备都在逐渐改为USB接口，USB技术的出现是计算机接口技术的一大飞跃。越来越多的测控系统、信号处理系统和智能仪器选用USB接口与PC机进行高速、海量的数据通讯。但是，相对UART（通用异步串口）、LPT（打印机并行端口），USB的开发难度要大的多。采用HID（Human Interface Device，人机接口设备）的设计方案则可以很好的解决这一矛盾。
上传时间： 2022-05-02
上传用户：shjgzh
Algebra, Topology, Differential Calculus, and Optimization Theory For Computer Science and Machine Learning一本数学大全书，由Jean Gallier and Jocelyn Quaintance合著。
上传时间： 2022-05-05
上传用户：默默
以STM32F103C8T6为核心,设计了无刷直流电机控制器硬件电路。电路主要包括IR2310构成的PWM驱动电路、IRF3808构成的逆变电路、增量式旋转编码构成的速度反馈电路。控制器具有CAN和RS232通信接口,可与计算机或PLC构成速度或位置伺服系统。利用由xPC目标搭建的半实物仿真平台对PI参数进行整定。测试了控制器的速度伺服响应性能,给定速度为2400rpm时,控制器响应时间为0.32s。实验结果表明,系统工作可靠,稳定性好,响应速度快,可以满足上肢康复机器人的机械臂速度控制性能要求。The hardware circuit of Brushless DC motor controller is designed by taking STM32F103C8T6 as the core,which mainly includes PWM driving circuits made up of IR2310,inverter circuit formed by IRF3808,speed feedback circuit composed of incremental rotary encoder and so on.Speed servo control system or position servo control system can be composed of BLDM controller with computer or PLC through CAN communication interface or RS232 serial communication interface.By using the hardware in the loop simulation platform built by xPC target,the PI parameters are set up.The Speed servo response performance of the controller is tested.When the speed is 2 400 rpm,the response time of the controller is 0...
上传时间： 2022-05-07
上传用户：GGMD
为了实时检测血氧量,能使缺氧特别敏感的脑组织或心脏类疾病患者得到及时治疗,采用近红外双波长透射式光电脉搏血氧测定法,以H桥电路对发射光源进行控制及通用运算放大器搭建滤波电路。运用参数理论计算和计算机仿真结果相对比的方法,通过Mu ltisim软件对所设计电路进行仿真,仿真结果与理论参数计算相吻合,证明了电路参数设计的可行性,为血氧仪的实物制作提供参考。For real-time detection of oxygen saturation for timely treatment of the brain or heart,which are very sensitive to oxygen inadequacy,the near-infrared wavelengths double photoelectric pulse oximeter transmission method is adopted.The illuminant is controlled with the H bridge circuit and the filter circuit is built with general op-amps.Parameters by theoretical calculation is compared with the computer simulation results in Multisim and satisfactory results are obtained.It is shown that the design of the circuit parameters is feasible and can be a help in making the physical blood-oxygen monitor.
上传时间： 2022-05-12
上传用户：lijumiao
说明： 基于51单片机的数字直流电压表相关材料，内容有原理图，仿真文件，论文材料，程序源码等。(The related materials of digital DC voltmeter based on 51 single chip computer include schematic simulation files, paper materials, program source code, etc.)
上传时间： 2022-05-16
上传用户：fliang
说明： 51单片机控制智能温控风扇，多档调节，pwd调速。包含源码和电路图(51 single chip computer control intelligent temperature control fan, multi-stage adjustment, PWD speed regulation. Contains source code and circuit diagrams)
上传时间： 2022-05-17
上传用户：tqsun2008
