计算机智能监控系统对起重机械电气的监测与控制.docx

1、计算机智能监控系统对起重机械电气的监测与控制计算机智能监控系统对起重机械电气的监测与控制起重机械是通过起重吊钩或其他的装置起升或移动重物的一种空间运输设备，它可以减轻劳动强度，提高生产率。起重机械是现代化生产必不可少的工具，从而要求起重机械电气自动化程度的越来越高，对电气监控的智能化控制、参数测量精度提出了更高的要求，并对人机界面、数据查询、逻辑处理和网络通信等方面也提出了新的要求。在实现电气自动在线监测领域中，ARM嵌入式系统在多参数采集，多层次监测和网络化等方面具有强大的优势。Crane is a kind of space transportation equipment through

2、 the lifting hook or other device for lifting or moving heavy objects, it can reduce labor intensity, improve productivity. The hoisting machinery is the modernization of production essential tool, which requires the hoisting machinery electrical automation degree becomes higher and higher, to the e

3、lectrical control and intelligent control, parameter measuring accuracy has put forward higher requirements, and the human-machine interface, data query, logic processing and network communication, and puts forward new requirements. In the realization of automatic on-line monitoring, ARM embedded sy

4、stem in the parameters collection, has the advantage of robust multi-level monitoring and network etc.1智能监控系统简介The introduction of the 1 intelligent monitoring system智能监控系统是运用高科技技术对人、物以及人、物体运动的轨迹进行识别和处理，还对影响视频环境的因素做出判断和补偿的一种手段。它能够借助计算机强大的数据处理和识别功能对所安装有智能监控系统的起重机电气设备进行监控，及时有效的记录事发现场情况。Intelligent mon

5、itoring system is the recognition and treatment of people, objects and people, the motion track of an object with high technology, but also a means to make judgement and compensation on the influencing factors of video environment. It can be monitored by means of crane electrical equipment of the co

6、mputer s powerful data processing and recognition function of intelligent monitoring system for the installation, timely and effective to record the scene.现代社会的发展已经使起重机械成为最忙碌的运输工具，它的运行部件多，操作按钮多，承载重量大，对电气设备的安全性尤为重要。一些发达国家的起重机械企业及特种设备安全检测机构开始利用现代化通讯手段和计算机技术，设计和制造出各自的监控系统，能够在起重机械电气设备出现故障时第一时间把情况反馈给监控系统

7、中心，并通知专修人员对起重机进行维修，以保证设备的安全使用性。The development of modern society has made the hoisting machinery has become one of the most busy transportation, operation of its components, the operation button, large load capacity, safety of electrical equipment is very important. Some developed countries the hois

8、ting machinery enterprises and special equipment safety inspection agencies began to use modern means of communication and computer technology, design and manufacture of the monitoring system of their own, capable of lifting machinery and electrical equipment fault occurs the first time give feedbac

9、k to the control system, and notify the specialized personnel to repair of the crane, in order to ensure the safe use of equipment.2系统硬件设计2 system hardware design系统硬件主要有以下几个部分构成：信号采集模块(包括电网被监控电量、电压，电流互感器，滤波放大器，AD转换器)、界面LCD显示模块、声光报警模块、系统调试控制接口模块(JTAG 接口)、电源模块、总线通讯模块(RS485)、信号模拟输出和继电保护动作输出模块等。The hard

10、ware of the system mainly consists of the following several parts: signal acquisition module ( including power monitoring power, voltage, current transformer, filter amplifier, A / D converter interface ), LCD display module, alarm module, debugging interface module (JTAG ), power module, communicat

11、ion module, signal ( RS485 ) analog output and relay output module etc. 图1 系统硬件功能结构Fig. 1 the function structure of the system hardware模拟量采集模块：由电压互感器、电流互感器及信号调理电路组成。电压互感器二次侧电压、电流互感器二次侧电流的模拟量首先经电流电压变换电路进行变换，变成适合AD转换的024 V交流小电压，再通过低通滤波器送入保护单元中。单片机进行信号采集。芯片LPC2132内部集成的8通道10位AD转换器实现采集转换。The analog acqui

12、sition module: by the voltage transformer, current transformer and signal conditioning circuit. The analog voltage transformer secondary side two voltage, current transformer secondary side two current of the current-voltage conversion circuit transformation, into 2.4 V AC voltage for A / D conversi

13、on of 0 , and through the low-pass filter into the protection unit. Single-chip microcomputer for signal acquisition. LPC2132 chip integrated 8 Channel 10 bit A / D converter to achieve the collection and conversion.电源部分：采用成熟的开关电源模块，分正负33 V，5 V，12 V三路输出。各路电源隔离并加抗干扰措施 。由于硬件系统直接接到交流电(市电)，要获得适合系统功能模块使用

14、的5 V直流电流，必须先将工网上的220 V 电压进行变压器降压，电路整流。另外，CPU和IO接口的工作电压是33 V，因此系统还必须通过转换芯片获得33V直流电源。因此系统要涉及到两类电压：一类是5 V直流电源，使用对象是外围电路和一些系统芯片，可直接通过变压整流电路从工网上获得。另一类就是CPU 和IO管脚，以及与处理器直接相连的存储器芯片、监测复位芯片等的电源，可以通过转换芯片从5 V直流电源二次获得。Power supply : the switch power supply module mature, divided into positive and negative 33 V,

15、 5 V, 12 V and three output. Each power supply isolation and anti-interference measures. The hardware system is directly connected to alternating current (electric ), to obtain suitable function modules of the system using the 5 V DC current, must first be step-down voltage of 220 V working online,

16、rectifier circuit. In addition, the working voltage interface CPU and I / O is 3.3 V, so the system must also be obtained by conversion chip 3.3V DC power supply. Therefore the system involves two categories: one category is the voltage 5 V DC power supply, the use of the object is the peripheral ci

17、rcuit and system on chip, can be directly obtained from online through the transformer rectifier circuit. Another kind is the CPU and I / O pins, power and memory chips, directly connected with the processor monitoring reset chip, can be obtained by conversion chip from the 5 V DC power supply two t

18、imes.继电保护输出模块：3路开出量输出(2路常开和1路常闭)。处理器对采集到的各种信息进行分析，经过系统逻辑判断发出相应的开关量输出信号，以驱动相应的出口逻辑继电器，执行相应的处理功能(如跳闸、合闸和告警等命令)。所有开出量也要经光电耦合器进行隔离后输出。Relay output module: 3 digital outputs ( 2 Road 1 road, normally open and normally closed). Analysis of all kinds of information of the processor, after the system logic

19、judgment issued switch output signal corresponding to the drive outlet relay logic, the corresponding processing function, the corresponding (such as trip, closing and alarm command ). All open also to the optocoupler isolation output.界面模块显示模块：包括键盘输入和液晶显示模块。LCD 应用于终端显示，它主要用来显示三相电压和电流的幅值和相位，功率和电能。由于液

20、晶显示屏幕一次不能显示全部内容，所以可以通过键盘按键输入来实现翻屏或清屏等功能。液晶显示模块采用LCD驱动控制器HT1625，实现了全中文的菜单显示界面、事件报告显示画面、采样信息画面等显示功能。键盘输入模块和信号灯显示模块主要功能是：(1)电动机启动、复位功能；(2)参数修改、设定功能；(3)装置运行、通信、跳闸、合闸和故障和故障信号灯显示。The interface module and display module: includes a keyboard and LCD display module. Application of LCD in the terminal display

21、, which is mainly used to display the amplitude and phase of three-phase voltage and current, power and power. Because the LCD screen one cannot display all of the content, so you can through the keyboard input to achieve the screen turning or clearance function. Liquid crystal display module using

22、LCD drive controller HT1625, realizes the full Chinese menu display interface, event report display, sampling information screen display function. The keyboard input module and signal display module is: ( 1 ) the motor start, reset function; ( 2 ) parameter modification, setting function; ( 3 ) devi

23、ce operation, communication, tripping, switching and fault and the fault signal lamp display.HT1625液晶显示控制器是多功能全自动智能开关的显示部件，能实时、准确、在线监控供电线路的运行情况。一旦线路出现漏电、过载、短路、过压、欠压和缺相情况，智能安全用电开关能立刻启动保护程序，并显示在HT1 625液晶显示控制器上。HT1625 LCD controller is a multifunctional automatic intelligent switch display unit, can ru

24、n real-time, accurate, on-line monitoring of power supply line. Once the line of leakage, overload, short circuit, overvoltage, undervoltage and lack of phase, can immediately start protection program with electric switch intelligent security, and displayed in the HT1 625 LCD controller.通信模块，采用以RS48

25、5为主要传输方式。RS485采用差分传输方式，是半双工串行通信总线。由于485标准只对接口的电气特性做出规定，而不涉及接插件、电缆或协议，因此需要设计自己的应用层通信协议，主要针对发送和接收。Communication module, using RS485 as the main mode of transmission. RS485 uses a differential transmission mode, is a half-duplex serial communication bus. Because the 485 interface standard only on the e

26、lectrical characteristics to make provisions, and not to a connector, cable or agreement, therefore need to design the application layer communication protocol, mainly for sending and receiving.3系统的软件设计3 system software design完善的起重机监控管理系统软件，具有彩色图形实时动画监控系统运行状态、实时显示、管理及打印等功能，并可通过Internet或局域网进行远程信息采集、监

27、控、在线编程、诊断及管理，性价比优越。软件部分的设计主要采用嵌入式C语言，在ADS 12编译环境中进行，优点是结构清晰，方便升级和移植。程序框架以主程序为核心，包括初始化程序、自检、主程序、定时中断程序和各个功能模块子程序。Crane monitoring management system perfect, with operation status, real-time display, management and print functions in real-time animation system color graphics, and a remote information

28、collection, monitoring, online programming, diagnosis and management through the Internet or LAN, price superior. The part of software design mainly uses embedded C language, in the ADS 1.2 compiler environment, has the advantages of clear structure, easy to upgrade and transplant. The program frame

29、 for main program as the core, including the initialization procedure, self-checking, main program, timer interrupt program and each function module subroutine.31 程序运行过程The operation process of 3.1 program系统工作流程包括3个部分：系统初始化、自检和进入主程序。系统初始化主要包括：引脚配置初始化、AD 初始化、定时器初始化、中断初始化、系统参数初始化等。自检则主要检查键盘、液晶屏、FLASH参

30、数是否正确和装置与监控系统的通讯是否正确连接。如果自检不通过，系统则处于静止等待状态，并将出错信息发给上位机和现场监控人员。若自检通过则进入主程序主画面，即进入测试前的画面，此时显示当前要测试的项目，如继电器运行情况，工作电流、电压的测量值等。A workflow system consists of 3 parts: system initialization, self and into the main program. Initialization of the system mainly includes: pin configuration initialization, A /

31、D initialization, timer initialization, interrupt initialization, parameter initialization. Self mainly to check the keyboard, LCD screen, FLASH parameters are correct and the device and the monitoring system of communication is connected correctly. If failed, system is still a wait state, and the e

32、rror information to the host computer and monitoring personnel. If the self through into the main program the main screen, enter the test in front of the screen, the display the current test items, such as relay operation, measurement of current, voltage value.32 主程序3.2 main program装置在进行系统初始化操作后执行主程序。正常运行时，主程序完成采样、计算、控制、通讯、保护动作等功能。如有自检故障发生，将发出故障信号，并将故障信号传送管理单元。正常运行时程序还将判断保护是否启动，若保护启动则程序转到保护处理子程序中去。在保护处理子程序中，将完成保护数据计算，保护判断，并根据判断结果执行相应的出口操作；没有故障时则返回主循环。Device performs in the main program used for system initialization operation. During normal operation, the main