| 基于最小方差预报的嵌入式测控网络系统研究 |
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| 引用本文： | 杨宁,王继忠,奚立群.基于最小方差预报的嵌入式测控网络系统研究[J].北华大学学报(自然科学版),2001,2(6):537-541. |
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| 作者姓名： | 杨宁 王继忠 奚立群 |
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| 作者单位： | 1. 北华大学,信息工程学院,吉林,吉林,132021
2. 北华大学,电气工程学院,吉林,吉林,132021 |
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| 摘 要： | 介绍RS－232／RS－485总线结构的单片机嵌入式测控网络系统的功能、最小二乘参数估计算法、预报的方法、单片机系统硬软件和现场实验效果情况。依据系统多站各点的可测变量参数，由上位管理微机进行计算，综合数据库历史事件的记录，把监测参数的限位值和该参数变化率情况结合起来，进行智能预报。实现对电力电缆接头故障发生的前提报警。此方法比单一参数限位值的传统作法在报警时间上提前，并大大提高了预报故障的准确性。
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| 关 键 词： | 最小二乘参数估计 最小方差预报 电缆接头故障 单片机数据采集网络 嵌入式测控网络系统 故障预报 |
| 文章编号： | 1009-4822(2001)06-0537-05 |
| 修稿时间： | 2001年6月9日 |
Embedded Measure and Control System Based on the Method of Minimum Variance Prediction |
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| Yang Ning,Wang Jizhong,Xi Liqun.Embedded Measure and Control System Based on the Method of Minimum Variance Prediction[J].Journal of Beihua University(Natural Science),2001,2(6):537-541. |
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| Authors: | Yang Ning Wang Jizhong Xi Liqun |
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| Abstract: | The function of embedded measurement and control system of RS 232/RS 485 bus microprocessor,composition of hardware,the methods of minimum squares and variance prediction,hardware and software design of microprocessor system and experimental condition in spot were introduced.The system carry out intelligent prediction according to measurable variable of stations, upper computer calculating,history event records of general database combination the limit of supervised parameter with its changing rate.Pre alarming for the disorder of joint of electric cable was realized.This really shorten the term of alarming comparing with practice, and raise its accuracy. |
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| Keywords: | Method of minimum squares Minimum variance prediction Fault of joint of electric cable Data collecting net of microprocessor |
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