HART智能温度变送器的实现
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摘要
目前，现场总线已经成为过程控制领域的热点，代表着过程仪表发展的方向。随着现场总线国际标准的完成，现场总线产品以其完善的功能和突出的特点必将为市场所接受，现场总线温度变送器取代传统的温度变送器已成必然。HART协议作为模拟到现场总线的过渡协议，以其独有的特点和运用优势，在当今的现场智能仪表中占有较大的份额。HART协议智能温度变送器的研究开发具有现实的意义。
本文论述了将微处理技术和HART协议通信技术引入温度变送器中，实现温度变送器的信号补偿、自适应校正、自诊断、远程管理、远程校正、远程组态、远程维护、远程监控等功能。
HART协议作为温度变送器实现HART通信的重要依据，论文首先对HART协议规范作了全面的分析，介绍了HART数据链路层、应用层和物理层具体要求。然后从硬件和软件两个方面分析和论述了HART协议智能温度变送器的温度变送电路（A/D、CPU及外围、D/A、V/I）设计、低功耗电路设计、本安电路设计、抗干扰设计、多种输入信号响应、信号补偿、输入信号线性化处理、HART协议数据链路层、应用层和物理层以及层间接口的实现。
论文在第1章概括介绍了技术背景和课题研究内容；第2章概括介绍了现场总线及相关技术情况；第3章对HART协议进行了总体剖析；第4章介绍了实现HART协议智能温度变送器的具体方法；第5章对现场总线发展的前沿—FF总线智能温度变送器作了概括介绍。
At present，Fieldbus has already become the hot spot in process control filed, on behalf of the necessary trend in the development of process instrument. As the International Standard of fieldbus accomplished, the fieldbus product is surely accepted by the market for its consummate function and extrusive characteristics. So it is certain that the fieldbus temperature transmitter should take place of traditional temperature transmitter. HART Protocol as a transient protocol imitating to field owns a big share in today's Field smart Instrument for its special characteristics and application priority. The research and development of HART Protocol smart temperature transmitter has real connotation.
This thesis discussed something about applying the technology of microprocessor and HART communications Protocol to temperature transmitter, to realize temperature transmitter's signal compensating, self-calibration, self-diagnose, remote management, remote calibration, remote configuration, remote maintenance, remote control. HART Protocol is an important reasoning of HART telecommunication realized by temperature transmitter. At first, the thesis gave a comprehensive analysis of HART Protocol Standard, and introduced each request of the data-link layer, application layer and physics layer. Then it analyzed and discussed on circuit design of temperature transmittal, low consume circuit design, intrinsic safty circuit design, anti-jamming design, response of manifold signal, signal calibration, signal linearization and application of each layer from software and hardware.
Chapter1: Technology background and thesis research content
Chapter2: Fieldbus and associated technology
Chapter3: Total dissect of HART Protocol
Chapter4: Concrete ways of how to realize HART Protocol smart temperature transmitter
Chapter5: Frontier of FieldBus development-summary of FF Protocol smart temperature transmitter
本文论述了将微处理技术和HART协议通信技术引入温度变送器中，实现温度变送器的信号补偿、自适应校正、自诊断、远程管理、远程校正、远程组态、远程维护、远程监控等功能。
HART协议作为温度变送器实现HART通信的重要依据，论文首先对HART协议规范作了全面的分析，介绍了HART数据链路层、应用层和物理层具体要求。然后从硬件和软件两个方面分析和论述了HART协议智能温度变送器的温度变送电路（A/D、CPU及外围、D/A、V/I）设计、低功耗电路设计、本安电路设计、抗干扰设计、多种输入信号响应、信号补偿、输入信号线性化处理、HART协议数据链路层、应用层和物理层以及层间接口的实现。
论文在第1章概括介绍了技术背景和课题研究内容；第2章概括介绍了现场总线及相关技术情况；第3章对HART协议进行了总体剖析；第4章介绍了实现HART协议智能温度变送器的具体方法；第5章对现场总线发展的前沿—FF总线智能温度变送器作了概括介绍。
At present，Fieldbus has already become the hot spot in process control filed, on behalf of the necessary trend in the development of process instrument. As the International Standard of fieldbus accomplished, the fieldbus product is surely accepted by the market for its consummate function and extrusive characteristics. So it is certain that the fieldbus temperature transmitter should take place of traditional temperature transmitter. HART Protocol as a transient protocol imitating to field owns a big share in today's Field smart Instrument for its special characteristics and application priority. The research and development of HART Protocol smart temperature transmitter has real connotation.
This thesis discussed something about applying the technology of microprocessor and HART communications Protocol to temperature transmitter, to realize temperature transmitter's signal compensating, self-calibration, self-diagnose, remote management, remote calibration, remote configuration, remote maintenance, remote control. HART Protocol is an important reasoning of HART telecommunication realized by temperature transmitter. At first, the thesis gave a comprehensive analysis of HART Protocol Standard, and introduced each request of the data-link layer, application layer and physics layer. Then it analyzed and discussed on circuit design of temperature transmittal, low consume circuit design, intrinsic safty circuit design, anti-jamming design, response of manifold signal, signal calibration, signal linearization and application of each layer from software and hardware.
Chapter1: Technology background and thesis research content
Chapter2: Fieldbus and associated technology
Chapter3: Total dissect of HART Protocol
Chapter4: Concrete ways of how to realize HART Protocol smart temperature transmitter
Chapter5: Frontier of FieldBus development-summary of FF Protocol smart temperature transmitter
引文
[1] FOUNDATION Fieldbus Technical Overview. Fieldbus Foundation. 1996
[2] 王宝莺、魏佑生 .现场总线及现场总线化仪表发展概况与趋势.重庆工业自动化仪表研究所.1996
[3] Marcelo Luis Dultra.Fieldbus Control system. Advances in Intrumentation and Control. Vol.51.1996
[4] HART — An Introduction for Users and Manufacturers. HCF.1995
[5] HART LINE. HCF. Summer & Winter 1995
[6] HART LINE.HCF.Spring & Summer 1996
[7] FSK Physical Layer Specification.No.HCF-SPEC-53. 1993
[8] Data Link Layer Specification. No.HCF-SPEC-81. 1993
[9] Command Summary Specification. No.HCF-SPEC-99. 1993
[10] Universal Command Specification. No.HCF-SPEC-127. 1993
[11] Common Practice Command Specification. No. HCF- SPEC-151. 1993
[12] Protocol Specification. No.HCF-SPEC-10. 1994
[13] Common Tables. No.HCF-SPEC-182. 1994
[14] Device Description language. No.HCF-SPEC-500. 1994
[15] Device Description Method Builtins Library. No. HCF-SPEC-501. 1994
[16] HART LINE. HCF. Spring & Winter 1997
[17] 周云波、林家瑞. 现场总线智能变送器的研制. 自动化仪表.No.9.Vol.18.1999
[18] 夏德海. DCS与现场总线纵横谈. 自动化仪表. No.12.Vol.16.1995
[19] 缪学勤. 现场总线现状与发展趋势 .自动化仪表. No.1.Vol.18.1997
[20] 周樟华、王滨.HART协议及其在智能变送器中的应用. 微计算机信息. No.3.Vol.13.1997
[21] 斯可克. 关于现场总线的几个问题和系统实践.微计算机信息. No.4.Vol.13.1997
[22] 阳宪惠.现场总线技术及其应用.清华大学出版社. No.9.1999
[23] 缪学勤. 现场总线技术的最新进展. 自动化仪表. No.6.Vol.21.2000
[24] 范凯. 现场总线的发展趋势. 自动化仪表. No.2.Vol.21.2000
[25] 周一军.用于城市污水处理的现场总线技术. 自动化仪表. No.12.Vol.21.1999
[26] 李斌. 数字V/I转换器. 自动化仪表. No.9.Vol.22.2001
[27] 崔宗芳. 智能仪表输出通道的一种组成方法. 自动化仪表. No.7.Vol.21.2000
[28] 王魁汉. 温度测量技术的最新动态及特殊与实用测温技术. 自动化仪表.
No.8.Vol.22.2001
[29] 刘焕成.工业现场智能仪表的可靠性设计.自动化仪表. No.8.Vol.22.2001
[30] 裘玉瑞.中国加入WTO与我国仪器仪表发展的关系.世界仪表与自动化. No.7.2001
[31] 汤子瀛.计算机网络技术及其应用.成都.电子科技大学出版社 1999
[2] 王宝莺、魏佑生 .现场总线及现场总线化仪表发展概况与趋势.重庆工业自动化仪表研究所.1996
[3] Marcelo Luis Dultra.Fieldbus Control system. Advances in Intrumentation and Control. Vol.51.1996
[4] HART — An Introduction for Users and Manufacturers. HCF.1995
[5] HART LINE. HCF. Summer & Winter 1995
[6] HART LINE.HCF.Spring & Summer 1996
[7] FSK Physical Layer Specification.No.HCF-SPEC-53. 1993
[8] Data Link Layer Specification. No.HCF-SPEC-81. 1993
[9] Command Summary Specification. No.HCF-SPEC-99. 1993
[10] Universal Command Specification. No.HCF-SPEC-127. 1993
[11] Common Practice Command Specification. No. HCF- SPEC-151. 1993
[12] Protocol Specification. No.HCF-SPEC-10. 1994
[13] Common Tables. No.HCF-SPEC-182. 1994
[14] Device Description language. No.HCF-SPEC-500. 1994
[15] Device Description Method Builtins Library. No. HCF-SPEC-501. 1994
[16] HART LINE. HCF. Spring & Winter 1997
[17] 周云波、林家瑞. 现场总线智能变送器的研制. 自动化仪表.No.9.Vol.18.1999
[18] 夏德海. DCS与现场总线纵横谈. 自动化仪表. No.12.Vol.16.1995
[19] 缪学勤. 现场总线现状与发展趋势 .自动化仪表. No.1.Vol.18.1997
[20] 周樟华、王滨.HART协议及其在智能变送器中的应用. 微计算机信息. No.3.Vol.13.1997
[21] 斯可克. 关于现场总线的几个问题和系统实践.微计算机信息. No.4.Vol.13.1997
[22] 阳宪惠.现场总线技术及其应用.清华大学出版社. No.9.1999
[23] 缪学勤. 现场总线技术的最新进展. 自动化仪表. No.6.Vol.21.2000
[24] 范凯. 现场总线的发展趋势. 自动化仪表. No.2.Vol.21.2000
[25] 周一军.用于城市污水处理的现场总线技术. 自动化仪表. No.12.Vol.21.1999
[26] 李斌. 数字V/I转换器. 自动化仪表. No.9.Vol.22.2001
[27] 崔宗芳. 智能仪表输出通道的一种组成方法. 自动化仪表. No.7.Vol.21.2000
[28] 王魁汉. 温度测量技术的最新动态及特殊与实用测温技术. 自动化仪表.
No.8.Vol.22.2001
[29] 刘焕成.工业现场智能仪表的可靠性设计.自动化仪表. No.8.Vol.22.2001
[30] 裘玉瑞.中国加入WTO与我国仪器仪表发展的关系.世界仪表与自动化. No.7.2001
[31] 汤子瀛.计算机网络技术及其应用.成都.电子科技大学出版社 1999
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