高速遥传系统的研究
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摘要
在石油测井系统中,高速遥传系统占据着重要的地位。其主要完成成像测井系统的地面仪器与井下仪器之间大量数据的高速、实时、准确的传输,是测井数据采集、传输与控制的“咽喉”。为了满足第四代测井技术——成像测井技术的要求,大量的井下信息需要上传,以前的低速的数据传输方法就无法满足需要了,所以高速数据传输的研究就至关重要。根据国内外高速遥传系统的发展与现状,本文提出的方案是基于Spectrum Digital公司的TMS320C6713BDSK开发板和QAM调制解调算法设计的。
在算法设计方面,本文首先比较了几种调制解调算法的特性,然后根据系统的要求和算法实现的复杂性选择QAM作为本系统使用的调制解调算法。在设计前用MATLAB对整个QAM调制解调过程进行了仿真,然后利用C语言和汇编语言编写了QAM的调制解调程序、CRC校验程序、DSP的控制程序、单片机的控制程序,绘制了CPLD的原理图。
在系统硬件设计方面,首先选择Spectrum Digital公司的TMS320C6713BDSK开发板作为高速遥传系统的主电路板。然后根据系统要求对单片机、FIFO、CPLD、A/D,D/A等芯片进行选型。并用这些芯片设计了地面仪器接口电路和电缆传输接口电路。
调试表明,系统能较好的完成数据的上传和命令的下传,传输速率能达到80kbps,误码率较低。设计的QAM调制解调算法符合要求,能有效提高数据传输效率。
In the measuring-mine system of petroleum, the system of express remote transmission plays an important role. The system of express remote transmission is used to transmit a lot of data accurately in time at a high speed between instruments outside mines and instruments in mines, and therefore, the system is throat of the process of collecting data, transmitting data and controlling data in measuring mines. In order to meet the need of the fourth generation technique of measuring mine(snamely measuring mines’technique of image formation), a lot of information is required to upload. In the case, the old technique of transmitting data at a low speed can not meet present needs. Therefore, it is necessary to study express data transmission. According to the development and present status of the technology abroad and domestic, a design plan is put forward based on the DSK of TMS320C6713B made in Spectrum Digital corporation and QAM modulate and demodulate algorithm.
In the design of algorithm, several algorithms of modulation and demodulation are compared with each other, and QAM is selected to finish to the system according to the system requests and the complexity extent of algorithm realization. Before designing high speed transmitter system, the modulation process and demodulation process of QAM is simulated by matlab.Then, C language and assembly language is used to design several programs such as QAM program, CRC verification program, control programs of DSP and MCU and so on. In addition, block diagram are used to realize the logic control program of CPLD.
In the design of system hardware, TMS320C6713BDSK development board made in the company of Spectrum Digital is selected as a main board of developing the system. Then select type of single chip、FIFO、A/D、D/A、and CPLD chip according to system requriement. In addition, CPLD, singlechip, FIFO, A/D and D/A are used to from ground instrument interface circuit of HMI and cable transmission interface circuit.
By the experiment, the system can upload data and download commands with low errorrate and the transmission speed of system is 80kbps. It is turned out that the design of QAM can meet the requests and the transmission efficiency can be promoted efficiently.
在算法设计方面,本文首先比较了几种调制解调算法的特性,然后根据系统的要求和算法实现的复杂性选择QAM作为本系统使用的调制解调算法。在设计前用MATLAB对整个QAM调制解调过程进行了仿真,然后利用C语言和汇编语言编写了QAM的调制解调程序、CRC校验程序、DSP的控制程序、单片机的控制程序,绘制了CPLD的原理图。
在系统硬件设计方面,首先选择Spectrum Digital公司的TMS320C6713BDSK开发板作为高速遥传系统的主电路板。然后根据系统要求对单片机、FIFO、CPLD、A/D,D/A等芯片进行选型。并用这些芯片设计了地面仪器接口电路和电缆传输接口电路。
调试表明,系统能较好的完成数据的上传和命令的下传,传输速率能达到80kbps,误码率较低。设计的QAM调制解调算法符合要求,能有效提高数据传输效率。
In the measuring-mine system of petroleum, the system of express remote transmission plays an important role. The system of express remote transmission is used to transmit a lot of data accurately in time at a high speed between instruments outside mines and instruments in mines, and therefore, the system is throat of the process of collecting data, transmitting data and controlling data in measuring mines. In order to meet the need of the fourth generation technique of measuring mine(snamely measuring mines’technique of image formation), a lot of information is required to upload. In the case, the old technique of transmitting data at a low speed can not meet present needs. Therefore, it is necessary to study express data transmission. According to the development and present status of the technology abroad and domestic, a design plan is put forward based on the DSK of TMS320C6713B made in Spectrum Digital corporation and QAM modulate and demodulate algorithm.
In the design of algorithm, several algorithms of modulation and demodulation are compared with each other, and QAM is selected to finish to the system according to the system requests and the complexity extent of algorithm realization. Before designing high speed transmitter system, the modulation process and demodulation process of QAM is simulated by matlab.Then, C language and assembly language is used to design several programs such as QAM program, CRC verification program, control programs of DSP and MCU and so on. In addition, block diagram are used to realize the logic control program of CPLD.
In the design of system hardware, TMS320C6713BDSK development board made in the company of Spectrum Digital is selected as a main board of developing the system. Then select type of single chip、FIFO、A/D、D/A、and CPLD chip according to system requriement. In addition, CPLD, singlechip, FIFO, A/D and D/A are used to from ground instrument interface circuit of HMI and cable transmission interface circuit.
By the experiment, the system can upload data and download commands with low errorrate and the transmission speed of system is 80kbps. It is turned out that the design of QAM can meet the requests and the transmission efficiency can be promoted efficiently.
引文
[1] 中国石油天然气集团公司测井中电实验室.测井新技术培训教材.石油工业出版社,2004,205～220
[2] 张守谦.成像测井技术应用.石油工业出版社,1997,8～25
[3]《测井学》编写组,测井学.石油工业出版社,1998,3～11
[4] 鞠晓东.我国石油测井装备研发现状及发展的思考.《石油仪器》,2001.4
[5] 谭廷栋.中国油气勘探测井技术的更新换代.《测井技术》,2000.3
[6] 苏涛等.高性能数字信号处理器与高速实时信号处理.西安电子科技大学出版社, 1999.33～46
[7] 丁玉美等.数字信号处理.西安电子科技大学出版社,1995,113～124
[8] 党剑华等.DSP 技术在成像测井地面仪器中的应用.《测井技术》2002.11
[9] TI Corporation.TMS320C6713B Data Sheets.2006
[10]TI Corporation.TMS320C6000 Programmer’s Guide.2006
[11]TI Corporation.TMS320C67x/C67x+ DSP CPU and Instruction Set Reference Guide.2006
[12]黄载禄等.通信原理.科学出版社,2005,1～24
[13]张辉.现代通信原理与技术.西安电子科技大学出版社,2002,68～92
[14]沈泊.高性能宽带 QAM调制/解调器的 VLSI 结构设计研究.复旦大学博士论文,2002.
[15]John R Treichler .Practical blind demodulators for high-order QAM signals. Proceeding of the IEEE 1998, Vol. 86 No 10
[16]Neil K Jablon. Joint blind equalization carrier recovery and timing recovery for high-order QAM signal constellation. IEEE transaction on signal processing,1992,Vo1.40,No 6
[17]David Mottier, Maryline Helad. Self-adaptive decision feedback equalization application to high-order QAM signals. IEEE internationl communication conference 1997,Vol.2
[18]南利平.通信原理简明教程.清华大学出版社,2000,77～101
[19]张小红.信号与系统.西安电子科技大学出版社,2004,13～46
[20]尹勇等.DSP 集成开发环境CCS 开发指南.北京航空航天大学出版社,2003,7～21
[21]Altera Corporation.MAX7000 Programmable Logic Device Family Data Sheet.2002
[22]潘琢金.C8051F330混合信号ISP FLASH微控制器数据手册.新华龙电子有限公司,2003
[23]Averlogic Corporation.AL422B Data Sheets.2003
[24]ADI Corporation.AD7821 Data Sheets.2000
[25]ADI Corporation.AD5254 Data Sheets.2005
[26]常力等.16QAM 通信系统的 Matlab 仿真实现.通信技术,2003,11
[27]刘会杰等.基于查表法的快速 CRC 算法设计.通信技术,2002,4
[28]TI Corporation.TMS320C6000 DSP Software-Programmable Phase-Locked Loop (PLL) Controller Reference Guide.2006
[29]TI Corporation.TMS320C6000 DSP External Memory Interface (EMIF) Reference Guide.2006
[30]TI Corporation.TMS320C6000 EMIF to External FIFO Interface.2006
[31]TI Corporation.TMS320C6000 DSP Enhanced Direct Memory Access (EDMA) Controller Reference Guide.2006
[32]TI Corporation.TMS320C6000 DSP General-Purpose Input/Output (GPIO) Reference Guide.2006
[33]张淑玲.“高速电缆遥测通信系统调制解调器的设计与实现”,华中师范大学学报, 2006
[34]党剑华.高速电缆遥传系统中的调制解调器设计.测井技术,2005.2
[2] 张守谦.成像测井技术应用.石油工业出版社,1997,8～25
[3]《测井学》编写组,测井学.石油工业出版社,1998,3～11
[4] 鞠晓东.我国石油测井装备研发现状及发展的思考.《石油仪器》,2001.4
[5] 谭廷栋.中国油气勘探测井技术的更新换代.《测井技术》,2000.3
[6] 苏涛等.高性能数字信号处理器与高速实时信号处理.西安电子科技大学出版社, 1999.33～46
[7] 丁玉美等.数字信号处理.西安电子科技大学出版社,1995,113～124
[8] 党剑华等.DSP 技术在成像测井地面仪器中的应用.《测井技术》2002.11
[9] TI Corporation.TMS320C6713B Data Sheets.2006
[10]TI Corporation.TMS320C6000 Programmer’s Guide.2006
[11]TI Corporation.TMS320C67x/C67x+ DSP CPU and Instruction Set Reference Guide.2006
[12]黄载禄等.通信原理.科学出版社,2005,1～24
[13]张辉.现代通信原理与技术.西安电子科技大学出版社,2002,68～92
[14]沈泊.高性能宽带 QAM调制/解调器的 VLSI 结构设计研究.复旦大学博士论文,2002.
[15]John R Treichler .Practical blind demodulators for high-order QAM signals. Proceeding of the IEEE 1998, Vol. 86 No 10
[16]Neil K Jablon. Joint blind equalization carrier recovery and timing recovery for high-order QAM signal constellation. IEEE transaction on signal processing,1992,Vo1.40,No 6
[17]David Mottier, Maryline Helad. Self-adaptive decision feedback equalization application to high-order QAM signals. IEEE internationl communication conference 1997,Vol.2
[18]南利平.通信原理简明教程.清华大学出版社,2000,77～101
[19]张小红.信号与系统.西安电子科技大学出版社,2004,13～46
[20]尹勇等.DSP 集成开发环境CCS 开发指南.北京航空航天大学出版社,2003,7～21
[21]Altera Corporation.MAX7000 Programmable Logic Device Family Data Sheet.2002
[22]潘琢金.C8051F330混合信号ISP FLASH微控制器数据手册.新华龙电子有限公司,2003
[23]Averlogic Corporation.AL422B Data Sheets.2003
[24]ADI Corporation.AD7821 Data Sheets.2000
[25]ADI Corporation.AD5254 Data Sheets.2005
[26]常力等.16QAM 通信系统的 Matlab 仿真实现.通信技术,2003,11
[27]刘会杰等.基于查表法的快速 CRC 算法设计.通信技术,2002,4
[28]TI Corporation.TMS320C6000 DSP Software-Programmable Phase-Locked Loop (PLL) Controller Reference Guide.2006
[29]TI Corporation.TMS320C6000 DSP External Memory Interface (EMIF) Reference Guide.2006
[30]TI Corporation.TMS320C6000 EMIF to External FIFO Interface.2006
[31]TI Corporation.TMS320C6000 DSP Enhanced Direct Memory Access (EDMA) Controller Reference Guide.2006
[32]TI Corporation.TMS320C6000 DSP General-Purpose Input/Output (GPIO) Reference Guide.2006
[33]张淑玲.“高速电缆遥测通信系统调制解调器的设计与实现”,华中师范大学学报, 2006
[34]党剑华.高速电缆遥传系统中的调制解调器设计.测井技术,2005.2