单片机驱动继电器电路,单片机驱动继电器电路图。
上传时间: 2013-11-20
上传用户:ruan2570406
基于STC125608AD的八路继电器控制,C程序及VB控制界面源程序,很实用!
上传时间: 2013-10-14
上传用户:13162218709
单片机驱动继电器
上传时间: 2013-11-13
上传用户:wdq1111
各类继电器引脚图
上传时间: 2013-10-18
上传用户:huanglang
介绍了一种基于C8051F020单片机的多路压力测量仪。该测量仪选用电阻应变式压力传感器采集压力信号,并经放大电路处理后送入C8051F020单片机,再由C8051F020单片机内部的A/D转换器将采集到的压力信号进行模数转化,然后分别对数据进行存储和显示。该测量仪能测量6路压力信号,并且各测量点都能单独检测和设置。由于采用了C8051F020单片机,简化了硬件电路,增强了抗干扰能力,使得测量仪具有测量精度高,冲击小等特点。 Abstract: A measurement apparatus for multi-channel pressure based on single chip microcomputer is introduced.It can measure 6 channels signal of the pressure,and the pressure measure points can be detection and located individually.The pressure signal sampling is obtained by resistor stress-type pressure sensors,the digital signals of 6 channels are collected through amplifying and adjustment circuit of pressure signals and internal integrated A/D converter of MCU.Finally,and it realizes the function to store and display data separately.C8051F020 was used to made hardware circuit simple,and it also enhanced the anti-interference ability.It features high precision and little impact.
上传时间: 2013-11-16
上传用户:yare
介绍以P87LPC764型单片机为核心的延时型漏电继电器设计方案。该方案可供用户选择实现额定动作电流和5倍额定动作电流下不同的延时动作时间,并有重合闸设定选择功能。解决了以往传统分立元件带来的延时时间离散性大且不易实现的弊端。 Abstract: In this paper, the delay leakage relay based on P87LPC764 is introduced in detail. This system provides different relay times at rating current and 5× rating current for users and also offers superposition brake set selection function. So that it resolves many traditional problems.
上传时间: 2013-11-08
上传用户:zhaiye
为解决输油管道温度压力参数实时监测的问题,设计了以C8051F930单片机作为控制核心的超低功耗输油管道温度压力远程监测系统。现场仪表使用高精度电桥采集数据,通过433 MHz短距离无线通信网络与远程终端RTU进行通信,RTU通过GPRS网络与PC上位机进行远程数据传输,在上位机中实现数据存储和图形化界面显示,从而实现输油管道温度压力参数的实时监测和异常报警。经实验证明,该系统的12位数据采集精度满足设计要求,漏码率小于1%,正常工作时间超过5个月,能实时有效地监测输油管道的温度压力参数,节省大量人工成本,有效预防管道参数异常造成的经济损失和环境污染。 Abstract: In order to solve the problems on real-time monitoring of pipeline temperature and pressure parameters, the ultra-low power remote pipeline temperature and pressure monitoring system was designed by using the single chip processor C8051F930 as the control core. The high-precision electric bridge was used in field instruments for data collection, the 433MHz short-range wireless communication network was used to make communication between field instrument and RTU, the GPRS was used by the RTU to transmit data to the PC host computer, and the data was stored and displayed in the PC host computer, so the real-time monitoring and exception alerts of pipeline temperature and pressure parameters were achieved. The experiment proves that the system of which error rate is less than 1% over five months working with the 12-bit data acquisition accuracy can effectively monitor the pipeline temperature and pressure parameters in real time, it saves a lot of labor costs and effectively prevents environmental pollution and economic losses caused by abnormal channel parameters.
上传时间: 2013-11-07
上传用户:cuibaigao
在2005年第4期中,笔者曾写了《单片机快速入门》一文,在近几个月中,笔者收到了众多读者的来信、来电纷纷表示称赞及支持。使不少初学者对单片机的学习有了非常大的进步与认识,同时也希望笔者能继续引导大家进一步地学习单片机技术,这使我也感到非常欣慰,也使我有了更大的动力。从本期开始,我们将作连载,从各方面着手,结合实例,如:按键、继电器、蜂鸣器、数码管、串口通信、液晶屏、红外线、步进电机、IIC通信等原理及使用方法,一步一步地伴您走向单片机大门。在前一期中,我们已对发光二极管的使用进行了学习,如怎么编写流水灯程序,相信大家都已经有了一个感性的认识。在这一期中,我们首先将一起来学习一下单片机应用电路中键盘、蜂鸣器和继电器的工作原理及使用方法,这也是单片机开发中,最为常用的。至于具体涉及到的程序编写、仿真调试及芯片烧写的使用,读者朋友可以参考2005年第4期《单片机快速入门》一文,如需交流,也可以发电子邮件给我,可以提供资料给大家。Email:xu169@sina.com。
上传时间: 2014-12-27
上传用户:cepsypeng
摘要:基于单片机技术的轮胎监测系统。系统通过嵌入到汽车轮胎内部的压力及温度传感器进行信号采集,经微型单片机处理后通过信号发射模块将信号发送到单片机处理监测系统,经监测系统分析处理后得出轮胎的工况,从而起到预警作用。关键词:轮胎压力监测系统 单片机系统 NPX-C01780 发射芯片 接收芯片
上传时间: 2013-11-25
上传用户:003030
【摘要】本文设计了以PC机为上位机、AT89C51单片机为下位机,并辅之以传感器、变频器以及相关接口部件的二级集散压力控制系统。着重介绍了基于TLC2543单片机的数据采集与处理系统。总结了基于单片机的过程控制系统的优势。关键词:过程控制,单片机,数据采集
上传时间: 2013-11-22
上传用户:BOBOniu