前兆远程子台CDMA传输故障诊断及排除
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摘要
本文简要介绍了CDMA传输技术及其在地震前兆远程子台的应用,之后以天津市地震局宝坻地震台的远程子台为实例,对地震前兆远程子台CDMA传输中的故障原因进行了研究,指出导致CDMA传输故障的原因主要有:仪器通讯部分故障、资费余额不足、路由器"假死"、路由器死机、路由器内部故障(特别是SIM卡接触不良)、CDMA信号强度不够、交换机故障、传输硬件连接断路等。在此基础上提出了一套行之有效的故障诊断流程,并对常见故障原因的判定和排除方法做了归纳整理。本文对使用CDMA传输方式或其他无线传输方式的地震前兆远程子台的维护管理人员有一定的参考意义。
This paper introduces briefly the CDMA transmission technology and its application in earthquake precursor remote sub-stations. Taking Baodi seismic remote sub-stations of Earthquake Administration of Tianjin Municipality as an example, we study the causes of the CDMA transmission failure on the earthquake precursor remote sub-stations, and summarize the following major reasons: instrument communication part failure, tariff balance shortage, ‘suspended death’ of routers, router system halted, internal fault (especially the SIM card bad contact), weak CDMA signal, the switch fault, transmission hardware connection circuit breaking, etc. On this basis, we develop a set of effective failure diagnosis process, and make a summery for the judgment and elimination method of the reason of the common faults. Our results provide useful references for earthquake precursor remote sub-stations maintenance management with CDMA transmission mode or other means for wireless transmission.
This paper introduces briefly the CDMA transmission technology and its application in earthquake precursor remote sub-stations. Taking Baodi seismic remote sub-stations of Earthquake Administration of Tianjin Municipality as an example, we study the causes of the CDMA transmission failure on the earthquake precursor remote sub-stations, and summarize the following major reasons: instrument communication part failure, tariff balance shortage, ‘suspended death’ of routers, router system halted, internal fault (especially the SIM card bad contact), weak CDMA signal, the switch fault, transmission hardware connection circuit breaking, etc. On this basis, we develop a set of effective failure diagnosis process, and make a summery for the judgment and elimination method of the reason of the common faults. Our results provide useful references for earthquake precursor remote sub-stations maintenance management with CDMA transmission mode or other means for wireless transmission.
引文
卞真付,郭巍,孙晶岩,2010.基于CDMA1X/GPRS网络采用VPN技术组建强地震观测网络系统.地震地磁观测与研究,31(2):95—100.
龚永俭,陈嵩,2012.浅谈地震台站信息节点的维护管理——以天津市宝坻地震台为例.高原地震,24(3):48—53.
胡玉,李国佑,2008.无线技术在前兆台站中的应用.高原地震,20(2):54—56.
李亮,2010.浅析CDMA掉话原因及优化方法.科技信息,(24):347.
师杰,程冬焱,2007.CDMA无线远程传输技术在山西地震网络系统中的应用.山西地震,(3):37—40.
吴卫远,周银兴,2010.CDMA无线传输在乌江数字地震台网的实施.地震地磁观测与研究,31(6):82—86.
泽仁志玛,李志雄,周克昌等,2009.利用CDMAIX+VPN技术实现十三陵地震前兆观测系统信息集成.地震,29(3):86—92.
周伯扬,2006.CDMA网络技术.北京:国防工业出版社.
龚永俭,陈嵩,2012.浅谈地震台站信息节点的维护管理——以天津市宝坻地震台为例.高原地震,24(3):48—53.
胡玉,李国佑,2008.无线技术在前兆台站中的应用.高原地震,20(2):54—56.
李亮,2010.浅析CDMA掉话原因及优化方法.科技信息,(24):347.
师杰,程冬焱,2007.CDMA无线远程传输技术在山西地震网络系统中的应用.山西地震,(3):37—40.
吴卫远,周银兴,2010.CDMA无线传输在乌江数字地震台网的实施.地震地磁观测与研究,31(6):82—86.
泽仁志玛,李志雄,周克昌等,2009.利用CDMAIX+VPN技术实现十三陵地震前兆观测系统信息集成.地震,29(3):86—92.
周伯扬,2006.CDMA网络技术.北京:国防工业出版社.
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