作　　者： ; ; ; ;

机构地区： 中海油田服务股份有限公司

出　　处： 《电子质量》 2010年第11期23-25,共3页

摘　　要： 由于石油测井仪器拆卸困难,采用传统的JTAG仿真器对仪器进行升级和维护将给现场作业带来不少的麻烦。针对这一缺点,本文提出了一种在不改变原有电路结构的情况下,利用现有的测井总线对石油测井仪器进行远程实时升级的方法。本方法将烧写文件通过现有的测井总线传输至井下主控电路板,主控电路板上的FPGA首先对串行数据进行曼彻斯特解码,然后借助DSP处理器内部的烧写软件完成对DSP处理器的片上FLASH的程序烧写功能,从而达到远程升级的目的。本方法提高了石油测井仪器的灵活性和扩展性,同时由于借助现有的远程通信机制,升级过程稳定可靠,大大提高了仪器的现场维护能力。 For the difficulty to disassemble the logging instrument,it brings a lot of issues to upgrade and maintain the logging instru-ment with the traditional method of using JTAG emulator.For this reason,a new design is proposed to remote upgrade the logging e-quipment without any change of the original circuit.In order to upgrade the longing instrument,the upgrade file will be sent to the main control board through the logging bus and decoded from the Manchester coding form by an FPGA,finally the upgrade file will be programmed into the flash on the DSP chip by the flash programming software.This method improves the flexibility and scalability of the logging equipment,while,with the stable remote communication system,the upgrade progress is stable and reliable,so it also improves the maintenance of instrument.

关 键 词： 石油测井仪器 远程升级 曼彻斯特码 处理器

领　　域： [自动化与计算机技术] [自动化与计算机技术]