自动化立体仓库是现代物流技术的重要组成部分,其仓储能力强,空间利用率高,通过计算机对货物搬运、存取的自动化进行控制和管理.以立体仓库模拟装置为研究对象,综合应用了PLC、传感器、位置控制和MCGS组态软件.系统以PLC为下位机,MCGS为上位机监控软件实现货物的自动提取和存放,以及对系统的出/入库进行实时监控等功能.开发的系统实用性强、界面友好、控制方便、定位准确、性能可靠,工作效率得到一定的提高,对实际应用具有一定的参考价值.
为了停车时能够准确地测量汽车与障碍物之间的距离,开发了一个基于超声波测距的倒车雷达系统.系统综合应用了单片机技术、液晶显示技术和超声波测量技术.系统利用超声波测距模块测量汽车与障碍物之间的距离,并在液晶显示模块上进行实时显示,若超出安全距离时进行报警.开发的系统实用性强、测距速度快、性价比高、性能可靠稳定,因此该系统的研究具有一定的实际意义.
随着自动化技术的发展,智慧农业变得越来越常见,尤其在农村地区,为了对农业的灌溉进行自动化管理,开发了一个基于PLC的智能灌溉系统.系统采用PLC控制,在农田土壤下插入传感器来捕获土壤的水分温度信息,将采集到的水分温度数据传送至触摸屏,触摸屏上实时显示土壤的水分温度信息,并根据土壤的情况来控制水泵的开合,实现自动化灌溉.系统还可以通过手机对农田情况进行远程监控,实现智能化管理.该设计既可以节约水资源,又可以提高农作物生长效果,还能实现农田的智能化管理,因此该系统的研究具有一定的实际意义.
Network transmission system is a combination of network system and control system,its overall performance depends on not only optimal control algorithm of the system but also the whole reasonable scheduling algorithm of network resources.Network transmission system load coordinated control is to seek a compromise between control performance and network quality of service,design optimal control strategy and scheduling algorithm to ensure optimal performance.Currently,most research separates the design of controller and the design of scheduling algorithm,the study on the combination is insufficient.A coordinated control method based on RM scheduling is proposed,it converts the coordinated control problem into the performance function extreme problem which relates to the sampling period,and ensures stability of the system and network resources schedulability.The simulation of this coordinated control method based on RM scheduling is studied based on TrueTime simulation platform,the simulation results demonstrate that this method can guarantee the stability of the network transmission system,and also improve the utilization of network resources.
The two-wheel robot system had the traditional pendulum similar multivariable, nonlinear, strong coupling and parameter instability and so on. For the complexity of the system, realization of wireless mo-bile robot control based on the Android platform and Bluetooth communication module is proposed in this pa-per. The self-balancing control of the two-wheel robot is achieved using a combination of control methods which are attitude data processing algorithm based on DMP and Kalman filter and double-loop PID control algorithm. The two arms are increased innovatively on the system, with which can quickly restore balance and maintain balance in order to achieve energy-saving purposes when the system is dormant. The test re-sults show that the system can accurately send data and receive data via bluetooth. The system has high ac-curacy, good stability, and fast response time.
针对小车控制系统的复杂性,设计一个以STM32F103C8T6微处理器为主控制器,以MPU-6050传感器为姿态检测部件的自平衡小车系统.由于陀螺仪和加速度计在测量时存在噪声干扰和随机漂移误差,采用卡尔曼滤波算法对陀螺仪和加速度计数据进行融合,补偿传感器测量误差,计算出小车倾角与角速度的最优估计值.并以最优姿态角和小车速度为反馈量构成双闭环控制,利用PID控制算法实现小车系统的自平衡控制.通过系统的软硬件设计、调试及运行情况,证明自平衡小车能够稳定地实现自平衡控制.
针对传统环境监测系统布线复杂、功耗高、设备维护不便等问题,设计一个以CC2530芯片为核心的ZigBee无线环境监测系统;该系统以CC2530为主控芯片,基于ZigBee协议栈构建无线网络实现协调器节点和现场终端节点之间数据的收发,利用串口通信技术实现协调器节点和PC机之间的通信;从系统的整体设计方案、系统的硬件设计、系统的软件设计和系统的性能测试4个方面对系统进行简单介绍;经实验证明,该系统性能稳定、实时性强、功耗低、可扩展性强,可广泛应用于对环境参数要求比较高的场合。
针对现有汽车防盗产品防盗功能单一、可靠性低、缺乏跟踪监控功能等缺点,设计了一种智能化的汽车防盗报警系统。应用RFID技术作为第一重防盗,对车主身份进行识别;应用GSM和GPS技术作为第二重防盗,当车辆被盗时进行短信报警提示;利用GPS定位技术获得车辆的位置信息,通过GSM网络将车辆位置信息发送给车主,以便车主实时地了解车辆的状态和位置,从而对失窃车辆进行相应控制。从系统的总体方案、硬件设计、软件设计3个方面对汽车防盗报警系统进行详细的介绍。实践证明,与传统系统相比,系统能唯一识别车主,系统的安全性和可靠性高,实现了远程控制和智能化防盗的高效结合。
针对粮仓存储需要定时打开窗户进行通风,在通风时若天气发生变化必须关闭窗户防止粮食受潮,以及粮仓窗户位置较高,人工关窗比较麻烦这些情况,设计一个基于Si4432无线控制芯片的粮仓窗户智能控制系统.从控制系统的整体设计方案、系统的硬件设计、系统的软件设计三个方面对系统进行简单介绍.目前,该系统已应用于某大型粮库中,系统运行可靠,性能稳定,克服了传统系统的多种缺陷,为粮库的智能化管理奠定基础.
The household environmental monitoring system is designed in this paper.The family environmental information,such as temperature,humidity,smoke concentration and so on,is col ected using a variety of different types of sensors,and these data are displayed in real time on the liquid crystal display module by way of multi-machine communication.A detailed introduc-tion for the household environmental monitoring system from three aspects:the overal scheme of the system,the system's hardware design and the system's software design.The results of the system debugging are gived in this paper.
Using GE Fanuc's PACSystems RX3i controller to achieve automatic control of the elevator model is introduced in this paper.The system hardware design and software design methods are described in detail.Master RX3i controller communicates with remote VersaMax slave via Profibus bus,remote I / O points connect to input and output modules of the remote VersaMax slave,this can save a lot of connections and improve system reliabilities.
The PID tuning is a complicated process.To solve the problem,a method of critical gain is presented based on the MATLAB/Simulink simulation environment.The simulation examples are also given.
This paper introduces an ideal simulation tool of networked control systems based on Matlab /Simulink —TrueTime tool-box.It also introduces RM and EDF scheduling algorithm of networked control systems.RM and EDF scheduling algorithm are researched on the simulation platform which is build by using TrueTime toolbox,simulation results validate their respective characteristics.
Based on battery system monitoring chip from DALLAS company,making using of abundant internal hardware resources of this chip,a intelligentized fire sensor which collects temperature induction and smog induction data is designed.Because DS2438 adopts 1-Wire standard protocol in its communication mode,it makes intelligentized sensor can link to all monitoring systems based on 1-Wire protocol.This intelligentized sensor which adopts DS2438 for kernel has small volume,more functions and simpler layout suitable than traditional sensor of smog and temperature induction.So it is more suitable for use in intelligentized monitoring system,and would have wide application prospect.