【作者】 欧阳丹娜；

【导师】 李颖宏；

【作者基本信息】 北方工业大学 ， 检测技术与自动化装置， 2006， 硕士

【摘要】 随着工业现代化进程的推进,传统的信号源通讯方式将会被以现场总线为代表的工业网络所代替。但是目前很多工业现场仪表、仪器都通过串行接口连接到相应的高端处理器上,不具备现场总线数据通信传输功能,不能直接接入现场总线网络。因而研究开发具有总线接口能力的装置或给现有的设备配置总线适配器,可以推动我国仪表业的智能化进程和现场总线在我国的应用。 深度指示仪是矿井提升行业中的必备指示设备,其功能是实时显示箕斗的位置和井筒开关的状态。本文主要介绍具有PROFIBUS-DP接口的深度指示仪的开发过程,提出了一种新型的不同通讯协议之间的转换电路,实现异步口、现场总线之间的转换。 本文首先对PROFIBUS现场总线技术进行了理论分析,着重分析了PROFIBUS-DP的协议及其报文结构,并在此基础之上,探讨了几种实现PROFIBUS-DP协议的方法。 然后结合矿井提升工程项目的要求,论文重点论述了采用HMS公司生产的ANYBUS-IC协议芯片实现PROFIUBS-DP接口的深度指示仪的开发设计。 本深度指示仪以ANYBUS-IC作为通信处理器,把现场总线中采集来的数据转换为串行数据,传输给单片机,单片机再进行数据处理分析,把有效的数据内容,转化成相应的字符显示。该仪表是整个矿井提升系统中的一个从站,为煤矿的安全生产提供了有力的保障。 ANYBUS-IC支持多种现场总线,具有标准化的机械尺寸、电气设计和软件接口。本文实现的PROFIBUS-DP通讯接口可以为其他总线的转换与应用提供一整套参考解决方案。这对于现场总线技术的推广、应用具有重大的意义。更多还原

【Abstract】 With the industrial modernization process, the traditional communication method based on signals sources will be replaced by the fieldbus network technology. Now days, many industrial instruments and equipments connect to their high-level controllers through the serial interface, instead of high-speed communications protocol through the fieldbus network. Therefore, the research and development of a device, which is capable to configure the existing equipments into certain fieldbus, will improve the intellectualization progress and application of fieldbus technology in China.The depth indictor is an essential instruction instrument in the mine lift system, and its function is to show real-time position of mine skip and the state of shaft switches. This thesis introduces the development process of the depth indictor with PROFIBUS-DP interface, presents a new type of conversion circuits that is able to perform data transmission between serial port and fieldbus communication protocol.Firstly, PROFIBUS technology, mainly on the analysis of the PROFIBUS-DP protocol and its structure, is studied. On this basis, several approaches to achieve PROFIBUS-DP agreement are discussed.Secondly, taking into account the practical requirements of the mine lift projects, the development and design of the depth indictor with PROFIUBS-DP interface is introduced, which is implemented utilizing the ANYBUS-IC.This indictor has an intelligent module AnyBus-IC that is able to receive data from PROFIBUS-DP as communication processor, convert the data to serial data and send them to SCM. The SCM processes and analyses data, display the useful part data. The indictor can be used in a PROFIBUS-DP network as a slave point, providing strong support for the safety of mine production.ANYBUS-IC supports multiple fieldbus. Moreover, it has standardized mechanical size, electrical design and software interfaces. The designed PROFIBUS-DP communication interface presented in this thesis can provide a set of reference solutions for other converters between different fieldbus networks. This work has the profound and lasting value for the application and promotion of fieldbus technology.更多还原