Data logging system on Internet for long term and reliable recording of magnetic disturbances in the polar region

本计划的目标是，为了长期和稳定的前景，我们从90年代初开始在加拿大和附近地区广泛部署的北极地区采集磁场数据。为了在全球范围内收集数据，方便使用，开放访问和易于管理，我们试图利用互联网的内在力量，这是本质上是全球性的，简单的操作和高度经济的主要是由一些志愿者开发的，数据处理服务器的四个模型，这些模型是潜在的连接到互联网的典型条件下，在关键站点计划;（1）文明地区的典范，通常靠近加拿大南部的大学，那里有良好的互联网连接和良好的电力质量（117伏）。在维多利亚大学支持的一个关键站点，通过电话线从远程站点收集的磁力计数据可在互联网上查阅。（2）提出了一种远距离数据采集模型 ...更多信息 加拿大境内的站点，偶尔有电话线或1类关键站点专用通信线路，通信条件和电力供应一般不稳定。对一种利用卫星的商业电话系统进行了数据传输试验，发现其成本仍然太高，数据传输速度也太慢，尽管多轨道系统的通信在几年左右的时间内肯定是从孤立地点收集数据的最有希望的突破。（3）斯瓦尔巴特群岛的模型，那里离日本的网络距离很长，电力相对稳定（240伏）。在朗伊尔城安装了一台全天空电视摄像机，自1996年11月以来，在斯瓦尔巴大学课程的因特网主页上可以看到全天空图像，刷新率为1分钟。全天空图像的传输也在朗伊尔城以北100公里的NyAlesund进行了测试，使用FTP脚本调度而不是Web服务器，可能是由于通信防火墙。(4)在俄罗斯网站上的一个模型，在那里通常是非常遥远的互联网连接，这仍然是在一个阶段的电子邮件互联网。在国际会议期间，根据互联网邮件的通信，亲自传送打包在MO磁盘中的数据。少

The objective of this program intends so that acquisition of magnetic field data in the arctic region deployed widely for Canada and in the vicinity which we have operated since early 90's should well be improved for long term and stable prospect. For collecting data in global range, handy use, open access and ease management of them we try to utilize inherent power of Internet which is essentially global, simply operative and highly economic mostly developed by a number of volunteers.Four models of data handling server which are potentially connective to Internet were planed for typical conditions at key sites ; (1) A model for civilized region, typically near by universities in the south of Canada, where are available good connectivity for Internet and good quality of electric power (117 Volt). At a key site supported by University of Victoria magnetometer data collected from a remote site by telephone line are accessible on Internet. ; (2) A model for collecting data from far remote … More sites in Canada, where are occasionally available telephone line or special communication lines for type 1 key sites and both communication condition and electric power supply are generally unstable. A commercial telephone system using satellites was tested for date transmission and was found still too high in cost and too slow in data rate although communication with multi-orbitlng systems will sure be a most promising break through for data collection from isolated sites in several years or so. ; (3) A model in Svalbard, where is long in network distance from Japan and relatively stable in electricity (240 Volt.). An all-sky TV camera was installed at Longyearbyen and all-sky images are visible on the Internet home page of University Course in Svalbard (UNIS) with refresh rate of 1 minute since November 1996. Transmisson of all-sky images was also tested at NyAlesund, in 100km north of Longyearbyen with script scheduling for ftp instead of a web server probably due to communication firewall. (4) A model on Russian sites, where are generally very remote in Internet connection and which is still in a stage of E-mail Internet. Data packed in MO disks were personally transferred at times of international meeting based on communication of Internet mails. Less