Disconnection data transmission technology based on mine monitoring substation
ZHU Xiaojie
为了保证煤矿安全监控系统井下监测数据的一致性与完整性,针对监控分站上级设备故障,提出了一种断线续传设计方案。研究了数据传输故障识别方法、数据预处理方法、数据存储策略和数据传输协议;基于不变不存原则清洗模拟量无效数据,采用位存储压缩离散量暂态数据;选用FLASH和铁电存储器实现数据二级存储,描述了数据存储格式及策略;分别制定了网络传输协议和总线传输协议实现数据续传功能。试验结果表明:分站主通信中断后,可连续存储7 d的监测数据,故障结束后数据续传正确率达到100%;该方案有效解决了分站上级设备故障导致的数据缺失问题,保证了监测数据的完整性,提高了监控系统的可靠性。
In order to ensure the consistency and completeness of monitoring data in the safety monitoring system of coal mines, a design scheme for continuous transmission of disconnected data was proposed in response to faults in the monitoring substation equipment. The methods for fault recognition of data transmission, data preprocessing, data storage strategies, and data transmission protocols were studied. Based on the principle of invariable nonstorage, analog data with invalid values was cleaned up by bit storage compression of discrete transient data. Two-level storage of data was achieved by using FLASH and ferroelectric memory, and the data storage format and strategy were described. Network transmission protocols and bus transmission protocols were formulated separately to implement data continuation functions. The experimental results showed that after the main communication of the substation was interrupted, the monitoring data could be continuously stored for 7 days, and the correct rate of data continuation after the end of the failure reached 100%. This solution effectively solved the problem of missing data caused by equipment failure in the substation, ensured the integrity of monitoring data, and improved the reliability of the monitoring system.
monitoring substation;continuous transmission of disconnected data;data storage;data preprocessing;data transmission
主办单位:煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会