The decision-making process of multi-vessel encounter and collision avoidance is an analytic hierarchy process, that is, a way of thinking combining analysis and synthesis; to solve the problem of multi-vessel encounter and collision avoidance, it is necessary to make full use of human experience and judgment to fully Consider various quantitative and qualitative or non-quantitative factors; the essence of solving the collision avoidance problem of multiple ships is to sort and optimize a set of collision avoidance schemes; the current difficulty in solving the collision avoidance problem of multiple ships is to affect the avoidance There are many factors in the selection of collision schemes, and there is a lack of unified measures for these factors.
The basic idea of ​​the AHP method includes two processes: analysis and synthesis. The analysis process refers to analyzing the relationship between the elements in the problem solving system, conceptualizing the problem, and establishing a hierarchical structure of the system. Establishing a good problem-solving hierarchy is the prerequisite for the system to use the AHP method to solve the collision avoidance problem, and it is also the key to ensuring that the obtained avoidance scheme is correct and credible.
After analyzing and synthesizing the complex multi-ship collision avoidance problem, several concepts related to the problem are determined and formed. These concepts are necessary factors to solve the collision avoidance problem. Only one factor at the highest level is collision avoidance, which is the overall goal of the system, so this layer is also called the target layer.
The criterion layer here includes two layers, one of which is the target ship layer; the other layer is the inference layer, which can be divided into two parts: a part is the navigation collision avoidance rule base, among which the rule bases are: standard navigation rule base, The bad visibility navigation rule database, the urgent situation navigation rule database and the urgent dangerous navigation rule database; the other part is the encounter situation, including 11 basic navigation encounter situations such as encounter, crossover, overtake and being overtaken.
XRX can produce many serials of PLC splitters including
1X2, 1X4, 1X8, 1X16, 1X32, 1X64, 2X4, 2X8, 2X16, 2X32, 2X64 with following package,
Bare Fiber PLC Splitters
Blockless Fiber Optical PLC Splitter
ABS box Fiber Optic PLC Splitter
LGX Box Optical PLC Splitters
Cassette Box PLC Splitter
Pallet Type Optical Fiber PLC Splitter
Rack Mount PLC Splitter for PON application
Wall Mount PLC Splitters
Rack type: installed in 19 inch OLT cabinet; in fiber branch home, the installation equipment is standard digital cabinet; when ODN need to be placed on the table.
Cassette type: installed in 19 inch standard rack; in fiber branch home, installation device is provided in the optical fiber cable transfer box; branch home, installed customer specified equipment.
Branch type: installed in various types of optical distribution equipment. Installed in various types of optical testing instruments.
Miniature: installed in optical cable connector box. Installed in the module box. Installed in the wiring box.
Insert: This equipment is used for user access point for optical FTTX system, mainly to complete the cable into the area or building into the end, with a fixed, stripping, welding, and other functions of the shunt jumper, optical fiber, light to form a cable into the terminal user.
Tray type: Fiber Optic Splitter, applicable to various types of wave division multiplexer integrated installation.
Planar lightwave circuit splitter (PLC Splitter) is a kind of integrated waveguide optical power distribution device based on quartz substrate. It has the advantages of small volume, wide bandwidth, high reliability, excellent uniformity. Optical Fiber Splitter is especially suitable for passive optical networks (EPON, BPON, GPON) which is connected with the terminal equipment and realize the optical power distribution.
XRX provides 1*N and 2*N fiber optic splitters. And these PLC splitters can be made as per customer request.
PLC Splitter,Fiber Optic PLC Splitter,Optical Cable Splitter,PLC Optic Splitter
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