基于ZigBee的电梯状态信息无线监测系统

发布时间：2018-12-15 20:44

【摘要】：作为现代建筑必不可少的乘载工具,电梯已经成为和居民日常生活关系非常密切的一种运输工具,采用计算机对电梯的运行状态进行实时监测,及时发现和排除故障、加强电梯的实时管理、保证电梯的安全运行非常重要。电梯状态信息无线监测系统已成为近年来国内外电梯新技术研究的热点之一。本文以电梯状态信息无线监测为目标,在深入研究现有方法和技术的基础上,研制开发了电梯状态信息采集终端,搭建了基zigbee的数据传输网络,编制了数据监测中心位机软件,完成了基于ZigBee的电梯状态信息无线监测系统。主要工作如下：首先,论文详细讨论了电梯状态信息采集的采集方法,研究了包括电梯温度、湿度,噪声,加速度,振动,电梯位置,曳引机电流、电压等的检测方法,并介绍了一系列智能传感器的原理及应用。利用改良的微加工高精度电容式三轴加速度传感器,减小传感器的阻尼因子,提高了传感器的分辨率。同时,在数据处理环节,利用过采样技术进一步提高加速度检测分辨率。在电梯振动检测中,利用小波阀值降噪技术,提高了检测精确度。其次,在对电梯的性能结构进行分析后,确定了状态信息采集终端由电梯轿厢、机房、曳引机三个电梯状态信息采集模块组成,负责实时采集各电梯的状态信息。每个终端采集模块均以Cortex-M3智能处理器为核心,结合多种传感器为模块输入电梯实时状态信息。每个模块均搭载DGUS高清LCD触摸显示屏,并开发了方便易操作的人机交互界面,可实时动态显示电梯温度、湿度,噪声,加速度,振动,电梯位置,曳引机电流、电压等状态信息。每个终端模块连接zigbee无线发射节点,采用zigbee无线通信技术,搭建基于zigbee的数据传输网络,与无线网关进行通信。最后,运用VisualC#工具设计开发了数据监测中心的数据处理软件。数据中心通过无线网关从zigbee无线网络接收电梯状态信息数据,并通过数据处理软件进行信息存储,以供进一步的数据分析。通过多次对该系统进行现场测试,系统各项功能得到了全面检验,较好的达到了设计要求。
[Abstract]:As an indispensable loading tool in modern architecture, elevator has become a transportation tool closely related to the daily life of residents. The elevator is monitored in real time by computer to detect and troubleshoot in time. It is very important to strengthen the real-time management of elevators and ensure the safe operation of elevators. In recent years, the wireless monitoring system of elevator status information has become one of the hot spots in the research of new elevator technology at home and abroad. Aiming at wireless monitoring of elevator status information, based on the in-depth study of existing methods and techniques, this paper develops the elevator status information collection terminal, builds the data transmission network based on zigbee, and compiles the software of the data monitoring center bit machine. The wireless monitoring system of elevator status information based on ZigBee is completed. The main work is as follows: firstly, the method of collecting elevator state information is discussed in detail, and the detection methods including elevator temperature, humidity, noise, acceleration, vibration, elevator position, traction current, voltage and so on are studied. The principle and application of a series of intelligent sensors are introduced. The improved capacitive triaxial acceleration sensor with high precision is used to reduce the damping factor of the sensor and improve the resolution of the sensor. At the same time, in data processing, oversampling technology is used to further improve the resolution of acceleration detection. In the elevator vibration detection, wavelet threshold noise reduction technology is used to improve the detection accuracy. Secondly, after analyzing the performance structure of the elevator, it is determined that the state information collection terminal is composed of three elevator status information acquisition modules: elevator car, machine room and traction machine, which is responsible for collecting the state information of each elevator in real time. Each terminal acquisition module takes the Cortex-M3 intelligent processor as the core and combines various sensors as the module to input the elevator real-time status information. Each module is equipped with DGUS high-definition LCD touch screen, and a man-machine interactive interface is developed, which can display the elevator temperature, humidity, noise, acceleration, vibration, elevator position, tracer current in real time and dynamically. Voltage and other status information. Each terminal module is connected to the zigbee wireless transmitting node and uses the zigbee wireless communication technology to build the data transmission network based on zigbee and communicate with the wireless gateway. Finally, the data processing software of data monitoring center is designed and developed by using VisualC# tool. The data center receives elevator state information data from zigbee wireless network through wireless gateway and stores information through data processing software for further data analysis. Through the field test of the system many times, the functions of the system have been fully tested, and the design requirements have been better achieved.
【学位授予单位】：东华大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU857

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