冗余数据干扰下的关口表远传数据校验技术

Remote Data Verification Technology of Gateway Meter Under Redundant Data Interference

在冗余数据干扰下关口表传输和校验存在误差和失真,为了提高关口表远传数据校验准确性,提出一种基于扩展Kalman滤波和VIX总线调度技术的关口表远传数据校验技术,设计关口表远传数据的信息流模型,对采集的关口表远传数据进行时间-尺度耦合处理,设计扩展Kalman滤波器进行冗余数据去除处理,提取校验信息的高阶累积量特征,采用自相关匹配方法实现关口表远传数据的自适应校验和误差反馈修正。结合VIX总线技术进行关口表远传数据校验系统软件设计,满足数据校验的同步触发和电磁兼容性要求。仿真测试结构表明,采用该技术进行关口表远传数据校验,数据输出的抗冗余干扰能力较强,输出数据的保真度较高,在数据召回率、时延控制等技术指标方面具有优越性。

In the redundant data transmission and check in Shimonoseki interference error and distortion, in order to improve the accuracy of remote meter data verification, put forward a kind of redundant data interference extended Kalman filter and VIX bus scheduling technology of gateway meter remote data verification technology based on the information flow model of remote data structure on the acquisition of the mark table remote data gateway meter time scale coupling processing, was used to remove the redundant data processing and extended Kalman filter, high order cumulant feature extraction of parity information, using autocorrelation matching method to realize adaptive gateway meter calibration and error correction of remote feedback data. Remote data check system software design of the gateway meter based on VIX bus technology, to meet the check the data synchronization and electromagnetic compatibility requirements. Simulation results show the test structure, by using the technology of remote meter Data check, data output anti-interference ability, high fidelity of output data, in the data recall rate, delay control and other technical indicators have advantages.