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VirtuozoNT digital photogrammetry form of computer network system

Households to provide exclusive, point to point connection. Any user connected to the switch ports are exclusive Ethernet bandwidth, can withstand a large amount of data transmission. 4,2.2 A selection of network equipment in the exchange-type set of linear switched Fast Ethernet structure, the exchange-type hub is the core of the entire network. 100MSwitchHub there are many on the market, should be considered in the selection of a specific processor using the switch. B server, the server is one of the core network equipment, the choice of high-performance cPU, memory capacity, can the PC server with disk array. Relative to the UNIX servers, RISC workstation, select the PC server,[link widoczny dla zalogowanych], regardless of price, maintenance or in the system, has a distinct advantage, especially in small local area network more with unparalleled advantages. It should be noted that, although high-end PC, PC server as a temporary substitute, but only a temporary solution. Compared with the high-end PC machines, PC servers running the network operating systems is a specially optimized, it can provide more extended spatial and dedicated server management software to ensure the integrity of the data in the network, reliability and security. C network operating system based on system maintenance, network management and operation Virtuozo digital photogrammetry software platform to consider. Use Win. dowsNTServers4, 0 network operating system is more appropriate. General set up a network mapping scale production units are small, from capital investment, technology and heavy use application view, use WindowsNT network operating system is a better choice. UNIX, Novel [Netware network operating system,[link widoczny dla zalogowanych], although the degree of maturity, reliability, strong security, WindowsNT better than some,[link widoczny dla zalogowanych], but its system maintenance and support personnel should possess high professional standards required to improve the overall system maintenance costs . 4.2.3 Schematic diagram of the network structure of the network shown in Figure 2. 4,3 Virtuozo �� system of digital photogrammetry, software and hardware configuration as the continuous improvement of computer performance and prices continued to decline, mature machine-based digital photogrammetry Pc system software continues to grow. The introduction of commercial software, marking the development of digital photogrammetry has entered the practical stage, is gradually becoming the main production unit mapping the means of production. Domestic Virtuozo digital photogrammetry system fully Results table of the actual production of topographic maps and topographical plans that feature high performance and low cost, is the ideal choice mapping units. VirtuozoNT specific configuration of the system is as follows. _4.3.1 Hardware host: PentiumII300 processor; windowsNT4.0Workstation operating system {128MBRAM; 8GB hard drive. 10/100M Ethernet LAN networking. 46 Northwestern Geology [turns ]--[]--[ fall] Sonoda 2,[link widoczny dla zalogowanych], three-dimensional network structure to indicate field observation equipment; liquid crystal stereo glasses} optical stereoscope. Measuring device: the mouse; hand wheel, foot plate. 4.3.2 Software VirtuozoNT digital photogrammetric system software integrates automatic and air, digital DEM, DOM, digital mapping prince Yu and other modules, the user can according to their needs, have a choice to buy. 4.3.3 Application VirtuozoNT can be applied to various scale digital mapping, a complete schematic maps of various scales symbols, and supports and other digital mapping products. VirtuozoNT design idea is to make use of the computer's own resources, further reducing the dependence on other hardware products, which improve system stability and system upgrades have very important significance. 4 Conclusion established PC-based computer network system, digital photogrammetry, surveying and mapping production unit is the product of digital mapping inevitable result of large-scale production. Production network build computer systems to improve production efficiency, reduce production costs, improve production Duli,[link widoczny dla zalogowanych], improve product quality, has very important practical significance. Construction of the above options using the production network, is technically mature, production is practical, economically affordable, digital mapping product development direction.