Development of a Telemetering Langrangian Data Capsule

这个海洋科学仪器开发项目将开发一种定时释放遥测数据胶囊，用于系泊和底部安装的仪器，如海流计。该项目的一个目标是能够将一个或多个数据胶囊附加到仪器以进行长期部署。太空舱的控制器将对仪器收集的数据进行压缩、编码和存储。在某个预定的时间，控制器将启动一个释放装置，使太空舱能够上升到表面，然后它将通过卫星通信链路将存储的数据传输到岸上。将开发用于基于微型计算机的控制器的各种数据编码和遥测方案，并将其与现有数据记录器的选择相连接。还将开发仪器安装组件和胶囊释放机构并进行现场测试。与目前的系统相比，使用这种数据胶囊将提供后勤和科学优势，目前的系统要求在收集数据之前检索整个仪器包。在数据稀少且收集成本高昂的偏远地理区域，可以部署长期仪器，让科学家能够定期接收数据。不仅会有仪器工作正常的迹象，而且还会有逐步分析数据和根据收到的信息改变实验设计的选项。数据胶囊还增加了使用具有一定经济优势的消耗性仪器的可能性。

This Ocean Sciences Instrumentation development project will develop a timed-release telemetering data capsule for use on moored and bottom-mounted instruments such as current meters. A goal for the project is the ability to attach one or more data capsules to instrumentation for long-term deployment. A capsule's controller will compress, encode, and store data collected by the instrument. At some predetermined time, the controller will activate a release enabling the capsule to rise to the surface, whereupon it will transmit the stored data ashore via a satellite communications link. Various data encoding and telemetring schemes for a micro-computer based controller will be developed and interfaced to a choice of existing data recorders. Instrumentation mounting assemblies and capsule release mechanisms will also be developed and field tested. The use of such data capsules will provide logistic and scientific advantages over present systems that require the entire instrument package to be retrieved before data is collected. In remote geographical areas where data is sparse and expensive to collect, long-term instrumentation could be deployed with the scientist being able to receive data periodically. Not only would there be an indication that the instruments were working properly, but there will also be the option of progressively analyzing data and altering experimental design based on received information. Data capsules also enhance the possibility of using expendable instrumentation that have certain economical advantages.