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以STC89C52RC单片机为控制核心、PID算法中的积分分离算法、遇限削弱积分算法和PWM调速法中的定频调宽法为风扇转速调节的理论基础设计实现帆板控制系统。系统主要包括主控模块、角度检测模块、风扇驱动模块、A/D模块、L C D显示模块、声光提示模块、按键模块等。经测试该系统执行速度快、具有更大的灵活性和更低的成本,各项性能指标均达到了设计要求。 相似文献
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史艳琼 《自动化技术与应用》2008,27(12):70-73
嵌入式智能PID控制器在通讯方面,常常会面临系统中的主机与从机(嵌入式智能PID控制器)串行通信的问题。为解决这个问题,本文作者在主机端用VC++和Windows Active X控件以及Windows API函数编写了一套串行通讯软件,它可以方便的实现主机与从机的串行通讯,而且这种通讯方式具有控制灵活,接口简单,不需安装硬件设备驱动程序等优点。 相似文献
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程控交换机用户板测试仪主要是针对中兴通讯ZXJ2000型程控交换机用户板而设计的.经过生产线上一年多的运行,系统运行可靠、漏检率低.该测试仪采用上下位机通讯的方式,主机为PC兼容机,完成对测试结果的显示、统计、报表等任务;下位机为8031单片机,以8031为核心,完成对被测试用户板的测试,并与主机进行通讯.介绍了测试仪的硬件结构及原理,给出了对用户板功能及部分技术指标进行测试的方法及部分软件原理框图. 相似文献
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一、简介HJD—256程控交换机话务台是监视程控交换机主机的窗口,也是进行人机对话的界面.它和主机由一根15芯电缆连接,以异步串行方式进行通讯.话务台的主要功能是:显示交换机设备及用户的工作状态;话务员通过话务台完成入中继接续;长途代拨;修改系统数据;显示日期;计费打印及其他控制操作.所以,话务台实际上是一个由CPU控制,且具有显示、打印、键盘输入和串行通讯等功能的微机控制系统. 相似文献
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<正> 在多机系统中,从机主要完成数据采集、预处理、显示打印、记录、人机对话及远程通讯等辅助功能,主机则全力完成主处理任务,以提高系统速度。美国国家半导体公司研制的70系列单片机是充当从机的合适芯片。这种单片机上集成了64字节的RAM、2.5K字节的ROM、8位运算器、各种寄存器及串行I/O 相似文献
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介绍了加速度传感器MMA7260的工作原理、结构及功能,设计了一个基于ARM的实时嵌入式自动检测系统,使用μC/OS-II操作系统,构造一个具有角度测量、相关数据处理以及与上位机通信等功能的现场角度测量单元,上位机则主要完成系统监控和人机交互等功能。 相似文献
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Bilateral teleoperation involves the motion control of a slave mechanism with a master mechanism that is capable of reflecting the sensory information such as force and torque signals captured from the master mechanism. Normally, the master and slave mechanisms in a teleoperator system are physically separated and are connected via some communication interface. As technology in robotic mechanism design continuously develops, advanced teleoperator systems are emerging. From the handling of hazardous and delicate materials in nuclear decommissioning to medical applications such as orthopedic and laparoscopic surgery, the demand for high bandwidth and fine-force reflecting bilateral teleoperator systems has become more and more important. This paper focuses on the implementation of an advanced master–slave teleoperator system using cable-driven WAM and PHANToM devices. Special emphasis is placed on the pragmatic issues on the implementation based two different designs of the teleoperator control schemes and the performance of the system under these two teleoperator control schemes. 相似文献
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提出了基于电力线载波通信的诱导风机控制系统设计方案,并给出了基于ARM7的控制器电路图,包括电力线载波通信、CO检测、烟雾检测、时钟、存储等模块电路;讨论了主/从通信过程、风机控制流程及详细的软件设计流程。该设计方案与传统的总线式智能通风控制系统相比,具有系统构建简单、成本低、调试维护方便的优点。 相似文献
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Integrated adaptive robust control for multilateral teleoperation systems under arbitrary time delays 下载免费PDF全文
With the increasing industrial requirements such as bigger size object, stable operation, and complex task, multilateral teleoperation systems extended from traditional bilateral teleoperation are widely developed. In this paper, the integrated control design is developed for multilateral teleoperation systems, where n master manipulators are operated by human to remotely control n slave manipulators cooperatively handling a target object. For the first time, the control objectives of multilateral teleoperation including stability, synchronization, transparency, and internal force distribution are clarified systematically. A novel communication architecture is proposed to cope with communication delays, where the estimated environmental parameters are transmitted from the slave side to the master, to replace the traditional environmental force measurement in the communication channel. A kind of nonlinear adaptive robust control technique is used to deal with nonlinearities, unknown parameters, and modeling uncertainties existing in the master, slave, and environmental dynamics, so that the excellent tracking performance is achieved in both master and slave sides. The coordinated motion/force control is designed in the slave side by the optimal internal force distribution among n slave manipulators, and the impedance control is designed in the master side to realize the target transparency behavior. In summary, the proposed control algorithm can achieve the guaranteed robust stability, the excellent synchronization and transparency performance, and the optimal internal force distribution simultaneously for multilateral teleoperation systems under arbitrary time delays and various modeling uncertainties. The simulation is carried out on a 2‐master/2‐slave teleoperation system, and the results show the effectiveness of the proposed control design. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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介绍了一种利用模湖控制器实现无线温度控制系统的设计方案.此方案以上业川电阻炉为控制对象,下位机将PT100测量温度反馈量无线传送给上位机,上位机采用模糊控制算法,将控制输出量以无线通信的方式传送给下位机,构成闭环控制系统.其中执行机构以PwM输出方式对电阻炉温度进行控制. 相似文献
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《Robotics, IEEE Transactions on》2009,25(3):522-538