摘要：迄今为止，中国先后进行了6次铁路全面提速，铁路运营提速的优点我们大家有目共睹，但是随之而来的众多安全性问题，应该引起了铁路部及工程人员高度重视。本文本文结合了TCP/IP技术，串口设备网络服务器，A/D转换模块，RS485总线，故障诊断，等知识，设计了一套基于TCP/IP技术的转向机的振动测试系统。本文选择了13个部位作为振动监测点，对转向架关键部位振动状态下的速度，位移，加速度信息进行采集，通过加速度传感器和一体化位移（速度）传感器对振动数据进行采集，采集的数据经A/D转换模块转换后，再通过RS485总线传至串口设备网络服务器EKI-1522内，再由以太网接口通过TCP/IP协议传输至工控机上，完成工控机与AD转换模块之间的网络通信。

关键词：转向架振动；数据采集；TCP/IP协议；转向架故障诊断

Bogie Vibration Test system based on TCP/IP Technology

Abstract ： Up to now, China has carried out six overall railway speed increases, and the advantages of railway operation speed increase are obvious to all of us. However, many safety problems come with them, which should be attached great importance to by railway ministry and engineers. This paper combines the knowledge of TCP / IP, serial equipment network server, RS485 bus, fault diagnosis, and so on, and designs a vibration testing  system  of steering machine based on TCP / IP technology. In this paper, 13 parts are selected as vibration monitoring points to collect the information of velocity, displacement and acceleration in the vibration state of the key parts of the bogie. The acceleration sensor and the integrated displacement (velocity) sensor collect the vibration data. The collected data are transferred to the serial device network server EKI-1522 through RS485 bus after the conversion of the collected data through the Ar / D conversion module. Then the Ethernet interface is transmitted to the industrial control computer via TCP / IP protocol to complete  the  network communication between the industrial control computer and AD conversion module.

Key Words：bogie vibration; data acquisition; TCP / IP protocol; Bogie fault diagnosis

目录

1绪论 1

1.1项目研究背景及意义 1

1.2国内外研究现状 2

1.2.1国外研究现状 2

1.2.2国内研究现状 3

1.3课题研究内容和技术路线 4

2硬件设备设计 6

2.1测试对象的相关参数介绍 6

2.2转向架测试点的选取 7

2.3测试传感器的选择 8

2.3.1加速度传感器 8

2.3.2XJ7700一体化振动位移（速度）传感器 9

2.4A/D转换模块 10

2.5网络串口服务器 11

2.6总线选择 12

2.7数据采集的硬件设计框图 13

3网络系统搭建 14

3.1工控机和A/D模块的通信 14

3.2TCP/IP 14

3.2.1TCP/IP协议体系结构 14

3.2.2TCP/IP工作原理 15

3.2.3套接字 16

3.3数据采集系统