基于TMS570和FreeRTOS的井下多参数记录仪  

Downhole Multi-parametric Recorder Design Based on TMS570and FreeRTOS

作　　者：胡永建 Hu Yongjian(CNPC Drilling Research Institute,Beijing102206,China)

机构地区：[1]中国石油集团钻井工程技术研究院,北京102206

出　　处：《单片机与嵌入式系统应用》2017年第12期39-42,共4页Microcontrollers & Embedded Systems

基　　金：国家级-2016年国家科技重大专项"大型油气田及煤层气开发"(2016ZX05020005-001)

摘　　要：为了实现钻井参数长时间、低功耗的可靠记录,选择TMS570安全微控制器来提高系统可靠性,同时选择具有合适数字接口的测量器件以充分利用其片上资源。在分析了各个参数的测量过程后,建立了统一的参数测量模型,在FreeRTOS实时操作系统下实现了参数测量、参数保存及串口通信三种任务,同时利用空闲钩子函数实现低功耗设计目的。本井下多参数记录仪与NOV的BlackBox同类产品有类似的功能与指标,可用于提高钻井效率、优化钻井性能。In order to get the record downhole measurement parameters with long time,low power and high reliability,the TMS570safety critical microcontroller is selected to increase system reliability,at the same time,a measuring device with the appropriate digital interface is selected to make full use of its resources.After analyzing acquisition processes of every parameter,a unique parameter survey model is built,three tasks such as parameter measurement,parameter preservation and serial communication are realized under FreeRTOS real time operating system and idle hook function is used to enter low power mode.The underground multi parameter recorder and the BlackBox of NOV have similar functions and indicators,which can be used to improve drilling efficiency and optimize drilling performance.

关 键 词：TMS570 安全微控制器 FREERTOS 多参数记录仪 

分 类 号：TP216.2[自动化与计算机技术—检测技术与自动化装置]