摘要
镇海航标区的许多航标设在远离大陆的岛礁上 ,那里地形复杂险阻 ,水文气象恶劣 ,航标的巡检条件十分困难。当航标工作失常或被盗熄灭时 ,无法及时发现及作出对应措施 ,影响船舶航运安全。按传统的模式管理、巡检航标 ,耗费大量的人力、物力 ,而每月一次的常规巡检具有一定的盲目性 ,造成浪费。因此实施航标的遥控、遥测 ,推行有效的动态实时管理 ,是提高航标管理水平和管理效益的重要途径 ,这也是研制本系统的目的。首先概略介绍本航标遥测系统的子站采集系统、集群数据传输系统及中心控制台等三大组成部分 ,简述在研制开发本系统软件过程中运用的诸如数据采集技术、计算机图形处理技术、计算机数据处理技术、集群数据传输技术以及网络数据接收技术等各种技术 ,提出本系统具有实用高效、工作稳定可靠、可扩充性强、数据采集方式多样等特点。接着叙述中心控制台的构成、功能、关键子程序流程 ;子站采集系统的硬件框图、软件框图、外接线图及工作原理 ;集群数据传输系统与子站、控制台的接口等。本航标遥测系统的一期工程是在海礁等 5个偏远岛礁上各安装 1套子站 ,1 999年 5月系统交付试运用 ,结果表明 。
Plenty of beacons in the Zhenhai beacon region are located at reef islands far away from continent. There is varied, dangerous and difficult topography at these reef islands and also the hydro meteorology is so harsh there that the condition is very difficult for the petrol inspection of beacons. When beacon works abnormally, stolen or die out, there is no way to find out and countermeasures can not be made in time, then the safety of ship navigation will be effected. A large amount of manpower and material is consumed in traditional way for management and petrol inspection of beacons, while monthly routine of petrol inspection has certain blindness and causes waste. Therefore, the implement of remote control and measurement of beacons to carry out effective dynamic real time management for them is an important approach to raise beacon management level and benefits and this is also the purpose of the development of the system.\;First, the three component parts, i.e. the sub station sampling system, the clustered data transmitting system and the central control board of the remote beacon measuring system, are briefly introduced. The various techniques applied in the process of the development of this system software such as data sampling, computer graph processing, computer data processing, clustered data transmission and network data receiving etc. are simply described. It is showed that this system has the features of utility, high activity, operating stabilization and reliance, big expandability and manifold data sampling mode etc. Then, the constitution, functions and the flow charts of the key subroutines of the central control board, the hardware block diagrams, software block diagrams, external wiring diagrams and working principles of the sub stations, the interfaces of clustered data transmitting system with the substations and the control board etc. are related in detail.\;The first stage construction of the remote beacon measuring system is that at five farther reef islands such as the Hai reef etc. one set of sub station was installed for each reef island. In the May of 1999 the system was delivered in trial operation and the results indicated that the preset objects were reached.
