基于对相关电力企业安全工器具的调研,针对现有的对安全工器具的管理比较落后,从而导致难以对安全工器具进行有效监控的问题,提出了一种简单有效、容易实施的安全工器具监控方案。首先从整体上描述了安全工器具监控系统的总体结构,然后分别从硬件设计和软件设计两个方面对系统进行了详细阐述。该系统已经成功运用于某电力企业的安全工器具监控,运行稳定,达到了设计的预期目的。
上传时间: 2013-11-05
上传用户:blacklee
介绍一种基于AVR单片机(Atmegal28)实现的直流电源监控系统的设计方案及其软、硬件设计思路。该监控系统能检测直流电源系统的各种实时运行数据及状态,自动监测各种故障并发出声光报警,实现蓄电池的智能管理;通过RS232或RS485与上位机通信,实现遥信、遥测、遥控和遥调等功能,能较好地满足无人值守变电站及配网自动化的需要。
上传时间: 2013-11-11
上传用户:gxf2016
单片机远程通信的电路设计
上传时间: 2013-11-29
上传用户:cuiyashuo
针对船舶对中小型信息监控终端的需求,提出了一种基于AVR单片机的设计方案。以AVR单片机为核心,采用LCD控制器RA8835实现对液晶显示模块的控制,通过软硬件的紧密配合,实现信息图文并茂的实时显示,以及液晶对比度的调节。试验结果表明,该终端在高温高湿、低温高湿等恶劣环境条件下,显示清晰、工作稳定。
上传时间: 2013-11-16
上传用户:农药锋6
在航电系统维护过程中,为解决定位故障的效率和降低维修成本等问题,提出了基于ICD(Interface Control Document,接口控制文件)的1553B总线的信息监控系统模型。该系统运用数据采集卡对总线中传输的信号有无失真、偏差等电气特性进行检测,并使用1553B通讯卡通过测控软件LabWindows/CVI编程与ICD数据库的动态链接,实现总线信息的解析和故障的判断。与传统的维护过程相比,这种模型能够从信号的电气特性以及信息的解析等全方位的去检测判断故障的来源,并且能够广泛在其他1553B总线系统内扩展应用。验证表明该监控系统可以对总线信息进行快速有效地监测分析,能满足应用需求。 Abstract: In the process of avionics system maintenance, to solve the problems such as improving the efficiency of fast orientation to troubles and reducing maintenance cost, system of 1553B bus information monitor model based on ICD was proposed. The system observed whether the data which transmitted on the bus appear distortion and deviation by using data acquisition card. And using 1553B communication card programming of the measure software LabWindows/CVI and the dynamic linking of ICD database, message analysis and fault estimation could be realized. Compared with traditional maintenance, this model can all-dimensionally detect and analyze the source of faults from both electrical characteristics of the signal and message analysis, and it can be widely applied in the other 1553B system. Experiment shown that this monitor system can effectively detect and analyze the bus message and can meet the application requirements.
上传时间: 2013-11-23
上传用户:18752787361
为满足矿井安全生产要求,介绍了一种以AT89C51单片机为主控器,对环境空气的温度、有毒易燃气体的浓度等进行检测的监控系统。该系统配合外围电路能实现对上述环境指标的控制并存储相关数据与上位PC机通信。它采用硬件抗干扰和软件抗干扰技术,以确保整个系统工作的准确性。 Abstract: In order to meet the needs of mine produce safety,a kind of intellignet mine ambient monotoring and control system based on AT89C51 is introduced.This system can detect the temperature of ambient of mine,the density of poisonous inflammable gas,combined external circuit.With its function part, this system can change above-mentioned elements.
上传时间: 2013-11-10
上传用户:wendy15
介绍一种基于单片机的多路温度采集及监控系统,能够测量6路温度信号,具有计算机联网功能,各测量点可以单独监控和设置,可根据用户的需求自动控制。测量温度范围为-10 ℃~200 ℃,控制方式采用模拟量调压模式。该系统具有控制精度高、冲击小等特点。 Abstract: A temperature collecting and surveillance-controlling system based on sing-chip microcomputer is introduced. It can measure 6 channel signal of the temperature,and it has a function of network connection.The temperature measure points can be monitored and located, it can be controlled automatic according to user’s demand.The temperature range is -10℃ to 200℃.The model of control is adjustable voltage with simulation. It features high precision and little impact.
上传时间: 2013-10-23
上传用户:bjgaofei
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
介绍了一种基于BF561的智能视频监控器的设计和实现。给出了系统的总体结构、系统各部分的硬件组成以及系统的主要算法和软件实现。测试结果表明,本设计具有良好的实时性、稳定性和准确性,可用于视频监控业务。
上传时间: 2013-11-15
上传用户:baitouyu
摘要:通过对“家用电器远程电话控制系统”的介绍,系统阐述一种基于AT89C51单片机的远程控制系统的设计、应用思路,将它推荐给各位同行、学生参考。同时,将芯片MT8870和ISDI400的关键功能以及应用做一些简明扼要的介绍。关键词:单片机;远程电话控制系统;硬件介绍;功能模块;工作流程
上传时间: 2014-12-27
上传用户:瓦力瓦力hong