具有误差修正和智能接口的DSP测试系统研究  

Research on Test System with Error Corrections and Intelligent Interface Based on DSP

作　　者：吴健[1] 

机构地区：[1]中北大学信息与通信工程学院,山西太原030051

出　　处：《科技创新与生产力》2011年第9期102-105,共4页Sci-tech Innovation and Productivity

基　　金：太原市2011年大学生创新创业专题资助项目

摘　　要：为了解决在测试系统中由于传感器动态特性引起测试数据失真的问题,提出了一种集数据采集、误差修正、数据存储于一体的智能测试方案。介绍了基于自适应神经网络的传感器动态补偿算法,阐述了测试系统的软、硬件实现方案,即以TMS320F2812 DSP为核心控制单元,采用高速模数转换器采集数据,通过动态补偿算法处理数据;采用外扩存储器技术存储数据,通过USB接口读取数据。为验证测试系统的实时修正能力研制了传感器模拟器并运用本系统对其输出的数据进行了采集,调试结果表明,本系统能够准确地采集存储数据同时还能够修正由传感器模拟器引起的动态误差。In order to correct the error caused by dynamic characteristics of sensor in test system, a novel test system which contains data sampling, error correction and data storage, is designed. The principle of test system is that the TMS320F2812 DSP acts as the main control chip, dynamic compensation method based on adaptive neural network is used for data processing, Ex-patulous Memory is used for data storing, and USB interface is used for data Transmission. In order to test the feasibility of test system＇ s dynamic compensation ability, then the simulator of sensor is designed and its output is sampled by the system. The sampled data from system show that the system does not only samples and stores data accurately, but also corrects the dvnamic errors caused bv simulator of senaor.

关 键 词：智能测试 自适应神经网络 DSP 动态补偿 外扩存储器 USB 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]