基于ARM的海洋站水文气象自动观测系统设计

针对国内现有的基于单片机或PC/104的数据采集系统的不足,介绍了一种基于ARM(Advanced RISCMachines)平台和单片机平台的数据采集系统。它结合了国外先进的数据采集技术,具有功耗低、体积小、性能高,软、硬件扩充灵活的特点,其通用性、模块化和可扩展性能满足浮标、船用气象仪等海洋水文气象仪器设备研发的需求。     

基于虚拟仪器技术的海洋移动气象观测系统

介绍一种自主研发的、基于Labview虚拟仪器技术的海洋移动气象观测系统,它可广泛用于各种舰船、海洋移动平台上,能够有效地去除安装平台的移动给风参数测量造成的影响,从而给出真风速、真风向、温度、湿度、气压、安装平台移动轨迹、速度等参数,并能够实时地显示相关参数的随时间的变化趋势,为海洋气象的研究及预报工作提供真实有效的原始数据分析资料。     

基于GIS的中国东南沿岸海域海产腹足类性畸变与有机锡污染查询显示系统

本研究工作采用基于组件式集成方案的ArcInfo GIS软件、Microsoft Access数据库、MapObjects 2.0软件、AutoCAD软件、VB6．0开发语言作为软件平台，以Legend Pentium Ⅲ（933）作为硬件平台，利用ADO数据接口实现与属性库连接，通过ShellExecute函数达到与ArcView软件、相关网址连接，在此基础上建立了中国东南沿岸海域海产腹足类性畸变与有机锡污染查询显示系统，并使其具有显示、缩放、温游、定位、查询、统计、分析、编辑、输出等功能。这是将GIS技术应用于海洋生态系统的调查、管理和保护的新尝试。     

Testing and evaluation of an integrated GPS/INS system for smallAUV navigation

A Small Autonomous Underwater Vehicle Navigation System (SANS) is being developed at the Naval Postgraduate School. The SANS is an integrated Global Positioning System/Inertial Navigation System (GPS/INS) navigation system composed of low-cost and small-size components. It is designed to demonstrate the feasibility of using a low-cost strap-down inertial measurement unit (IMU) to navigate between intermittent GPS fixes. The present hardware consists of a GPS/DGPS receiver, IMU, compass, water speed sensor, water depth sensor, and a data processing computer. The software is based on a 12-state complementary filter that combines measurement data from all sensors to derive a vehicle position/orientation estimate. This paper describes hardware and software design and testing results of the SANS. It is shown that results from tilt table testing and bench testing provide an effective means for tuning filter gains. Ground vehicle testing verifies the overall functioning of the SANS and exhibits an encouraging degree of accuracy     

基于LabVIEW虚拟仪器技术的海洋环境监测数据采集与处理系统

介绍一种基于LabVIEW虚拟仪器技术的数据采集与处理系统。该系统以单片机和计算机为硬件平台,采用高精度16位Σ-ΔA/D转换器AD7705对采集到的信号进行A/D转换,通过串口进行数据通信,实现了叶绿素浓度的计算机自动采集、实时数据显示、分析和数据管理等功能。该实现方案还可用于温度、盐度等参数的高精度自动数据采集系统,在海洋环境监测中具有推广应用的现实前景。     

一种图像声呐的数据采集、处理与显示系统

介绍了一种由DSP和IBMPC计算机构成的二维图像声呐的数据采集、处理与显示系统。重点讨论了硬件构成、采集过程与WINDOWS操作环境下的图像显示技术。系统具有结构紧凑、操作灵活、功能丰富与可扩展性强等特点。     

南海海上溢油漂移扩散预测微机视算系统

应用科学计算可视化新技术，结合动力海洋学、计算数学、计算机图形学和计算机技术，以通用３８６微机作支持硬件系统，用ＭＳＦＯＲＴＲＡＮ语言、汇编语言和图形核心系统（ＧＫＳ）软件包，研制开发出南海海上溢油漂移扩散预测微机视算系统。该系统不仅能够利用南海风场和流场资料，按所选定的海上溢油漂移扩散计算模式模拟计算出海面溢油浓度分布情况，而且还能够把模拟计算结果以图形方式实时、动态地显示在屏幕上，从而形象、直观地看到溢油漂移扩散变化的全过程。     

Design and Implementation of a Distributed GIS Portal for Oil Spill and Harmful Algal Bloom Monitoring in the Marine Environment

A web-based distributed system for monitoring and forecasting of the marine environment has been developed in line with INfrastructure for SPatial InfoRmation in Europe (INSPIRE) and Global Monitoring for Environment and Security (GMES) recommendations for a European Spatial Data Infrastructure (SDI). This system, called DISPRO, enables integration and distribution of multi-source data from satellites, aircraft, and in situ instruments, as well as results from numerical models. Geographic data and metadata are stored on a set of distributed computer nodes and retrieved and integrated by a web GIS client by means of Open Geospatial Consortium (OGC) Web Map Server (WMS) technologies. A profile of ISO 19115 was developed for metadata handling, using eXtensible Markup Language (XML) as a platform independent encoding mechanism. DISPRO has been demonstrated in six European coastal zone and ocean regions in the spring and summer of 2005. The overall positive experiences of both service providers and end users indicate that the system should be further developed into an operational GMES service.     

基于kubernetes的海洋遥感数据产品服务平台设计与实现

伴随着海洋遥感资料的大量积累,高效的“一站式”服务成为海洋遥感数据业务化应用的基本需求,同时也对系统在动态调度资源、易维护、弹性可扩展、复杂度可控和灵活部署等方面提出了更高的要求.针对上述问题,本文引入kubernetes容器编排管理平台,将单个业务系统拆分成多个独立运行在相互隔离容器中的服务,共享服务器软硬件资源,在保证系统具备高度可扩展性和灵活性的基础上,有效降低了开发的复杂度,设计和实现了海洋遥感数据产品生产和应用服务平台,满足了对海洋多源卫星数据从获取、预处理、产品自动生产、展示发布到应用服务的一体化需求.     

基于单片机和模糊控制的浮标自动防碰撞系统

针对海洋观测浮标易受过往船只碰撞及恶劣天气的影响而损坏,提出了基于单片机和模糊控制的浮标自动防碰撞系统。该系统以C8051F340单片机作为核心控制芯片,设计了控制系统的软硬件,实现了信号的采集、处理、分析和传送。以距离、风速信号及其变化量作为输入变量,建立了相应的模糊控制规则和控制算法,设计了模糊控制器,为浮标长期、安全运行提供了保证,并为海洋测量仪器实现智能化控制奠定了基础。     

微电脑风速风向数据采集系统

微电脑风速风向数据采集系统可定时、自动对风速风向进行测量和采集,并求出最大瞬时风速和平均风速。本文对此系统作简要报道。 一、结构及原理 整个系统由传感器、单板机、打印机和时钟电路等部分组成(图1)。在时钟电路控制之下,触发器按每天四次或八次的频率被置     

Real Time Analysis and Display of Scanning Lidar Scattering Data

We describe software for an IBM compatible personal computer (PC) that we have developed and used to collect and analyze backscatter data from a multi-wavelength Mie-Rayleigh scanning lidar system. Both one and two-dimensional distributions of optical scattering coefficients are calculated from the lidar return signals and displayed in real time. Although we are using the software for analyzing marine aerosols, the modular nature of the software and data acquisition drivers make it straightforward to adapt the software to different systems, such as differential absorption lidar (DIAL) and oceanic lidars. We show examples of both horizontal and vertical Mie-Rayleigh lidar scans collected at the Makai Pier and Bellows Beach on the northeast side of the island of Oahu.     

数字海底的理论基础和技术实现--以渤海油田工程地质示范区系统为例

渤海油田资源的勘探开发促进了海洋工程建设的迅速发展。为避免海底不稳定性造成海洋工程巨大损夫或灾难性后果,在该区开展了大规模的海洋工程地质综合调查和评价研究。通过对数字海底技术的理论基础研究和在渤海油田工程地质示范区的具体实践,基于GIS理论、计算机硬件、软件以及网络技术,对渤海油田工程建设中的多源异构数据和图形进行标准化/整合、输入/输出、存储、查询和显示,研究开发的示范区系统可提供多种综合分析及应用服务,为海洋工程建设和油田工程安全保障提供了共享基础科学数据,对于防止海洋地质灾害、降低工程建设造价和保障工程安全运行具有重大的应用价值。     

Technical Note AIMS (TM): An Alternative Tool for Coastal Mapping

Space technologies, such as kinematic Global Positioning System (GPS), often combined with an inertial navigation system (INS), provide an efficient direct georeferencing tool for remote sensing and aerial surveying. Practically, these systems are now able to deliver high-precision orientation data for spatial data acquisition platforms in a timely manner, at relatively low cost, as compared to traditional methods. The Airborne Integrated Mapping System (AIMS (TM)), developed at The Ohio State University Center for Mapping, integrates high-resolution digital imagery, differential GPS/INS, and precise timing for high-quality data acquisition supporting large-scale mapping and other precise positioning applications. In this article, the AIMS (TM) system hardware/software configuration, its current operational capabilities, and the test results of airborne mapping of the coastal zone are presented.     

Technical Note AIMS (TM): An Alternative Tool for Coastal Mapping

Space technologies, such as kinematic Global Positioning System (GPS), often combined with an inertial navigation system (INS), provide an efficient direct georeferencing tool for remote sensing and aerial surveying. Practically, these systems are now able to deliver high-precision orientation data for spatial data acquisition platforms in a timely manner, at relatively low cost, as compared to traditional methods. The Airborne Integrated Mapping System (AIMS (TM)), developed at The Ohio State University Center for Mapping, integrates high-resolution digital imagery, differential GPS/INS, and precise timing for high-quality data acquisition supporting large-scale mapping and other precise positioning applications. In this article, the AIMS (TM) system hardware/software configuration, its current operational capabilities, and the test results of airborne mapping of the coastal zone are presented.     

海水有机磷农药实时数据采集系统设计

为实现海水中有机磷浓度现场监测,采用由单片机和工控机组成的海水有机磷农药实时数据采集系统的设计.给出了由PIC单片机构成的采集控制模块硬件设计原理和软件设计方法,工控机的程序流程和浓度的算法.     

UDATS-II: data acquisition in a client-server environment

Continuous data acquisition from current meters and other sensors deployed in the surf zone makes special demands on the capabilities of systems. This paper describes a new system that allows continuous digital recording of data at 10 Hz, with the simultaneous processing of the data to estimate statistical moments. This new design uses a real-time multitasking operating system in a client-server model to achieve the objective of continuous operation while maintaining a robust distributed system. This paper explores some of the alternatives and then details the hardware and software design of the new system. Data collected during the Duck94 field experiment are presented as examples of the capabilities of the new system     

Methodology for Quantitative Estimation of One-Dimensional Consolidation Settlement Based on Hybrid Simulation Method

A hybrid simulation system, HyCoS, was developed involving the control, measurement, and analysis process in order to realize the basic algorithm of hybrid consolidation simulation. The system was fully automated by the development of the program HyCoS. Furthermore, a computer program, CONPERM, was also developed to obtain soil constitutive relationships in compression and hydraulic conductivity from inputting the data from the HyCoS simulation. Two laboratory simulations were conducted in order to verify the system involving the basic algorithm of the system and two major components, the software and hardware operation. The objectives of this process are divided into two major aspects. The first was to confirm whether the experimental equipment, such as the consolidometer and control and data acquisition device, maintained a stable operation status during the whole period of the consolidation test. In addition, verification was also carried out to determine whether the target control can actually be maintained on the specimen. The second objective was to confirm the reliability of the data obtained from the system HyCoS.     

水下升降式准实时通信潜标控制系统研制

为实现长期、连续、定点、低成本的上层海洋垂直剖面要素的准实时观测,提出了一种以STM32单片机(microcontroller unit,MCU)为主控器、采用国产温盐深传感器(conductivity temperature depth,CTD)和声学多普勒剖面流速仪(acoustic doppler current profilers,ADCP)等仪器进行剖面观测、搭载铱星通信模块或其他通信设备、适用于近海和远海的低功耗水下升降式准实时通信潜标控制系统设计方案。介绍了潜标的结构组成、控制系统硬件和软件设计,以及服务器接收软件的设计;实现了基于无线双向通信的数据补发机制和对潜标的远程控制;提出了一种适用于霍尔无刷直流电机(hall brushless direct current motor,HBLDCM)的堵转保护方法。近海和远海试验表明,该型潜标可以实现海洋垂直剖面的连续观测和数据的准实时传输,验证了潜标控制系统设计方案的可行性与稳定性。     

PLC结合微机控制在时间常数测量装置中的应用

文章介绍了在时间常数测量装置中所涉及到的几个控制问题 ,系统采用由计算机为上位机和以可编程序控制器 (PL C)为下位机构成的两级控制模式。在上位微机中使用 VB5 .0编程语言设计了微机软仪表面板风格的监控程序 ,通过 RS2 32通讯接口将上位微机操作指令送至 PL C完成控制过程。本文还介绍了传感器运动速度的控制和测量 ,传感器穿越阶越界面的运动控制以及高速数据采集系统。