UHF signal full-ship coverage method applied on marine engineering ships

Abstract

The invention discloses a superhigh frequency signal whole-ship covering method applied to an ocean engineering ship. Media affecting signal transmission of the whole ship and attenuation parameters are analyzed according to the transmission and attenuation characteristic requirement of UHF signals. A UHF base station connected with a power source comprises a duplexer, a receiving amplifier, an emitting synthesizer, a relay, a coupler, a splitter, a feeder cable, an amplifier and a leaky cable, wherein the duplexer, the receiving amplifier, the emitting synthesizer and the relay are installed on a UHF superhigh frequency frame, and the coupler, the splitter, the feeder cable, the amplifier and the leaky cable are installed in a system. Field UHF monitoring sensors are economically, reasonably and accurately arranged according to the transmission and attenuation characteristic requirement of the UHF signals, the shielding effect of an engine room or some sealed areas on the signals is avoided, UHF wireless communication can be achieved at all places and areas in need on the whole ship by laying the feeder cable and distributing indoor antennas and through other means, and UHF signal whole-ship covering can be defined.

Description

technical field [0001] The invention relates to IPC classification G01S positioning or presence detection technology using reflection or re-radiation of radio waves, especially an ultra-high frequency signal full-ship coverage method applied on ocean engineering ships. Background technique [0002] UHF generally refers to ultra-high frequency radio waves. Ultra High Frequency (UHF) refers to radio waves with a frequency of 300-3000MHz and a wavelength of 1m-1dm. Radio waves in this band are also called decimeter waves. [0003] In marine engineering ships and platform projects, the application of UHF (Ultra High Frequency) signal to cover the whole ship is increasing, and UHF signal will be greatly attenuated on the metal surface, which is difficult to meet the needs of operation and communication, because any transmission medium has problems with signal transmission. The attenuation phenomenon is also affected by the transmission path and distance, so when the signal is co...

AI Technical Summary

Problems solved by technology

In marine engineering ships and platforms, since the cabins are all steel plate structures, the layout of the cabins is relatively complicated, and there may be other harsh noise environments, therefore, the signal calculation requirements are more complicated, and the calculation rigor must be given sufficient attention

At present, there is no complete calculation formula for the calculation of such UHF signal coverage

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