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Ship automatic identification system slipway with intelligent transmission power regulation

A technology for automatic ship identification and transmission power, applied in transmission systems, power management, electrical components, etc., can solve problems such as shore radio interference, reduce AIS guarantee performance, and radio environment deterioration, and achieve the effect of ensuring high efficiency

Inactive Publication Date: 2010-10-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (3) Interference of shore radio
Therefore, if the existing AIS is used in complex radio environments such as inland rivers, and the antenna transmits outward with the same power, the radio environment will be further deteriorated and the guarantee performance of AIS will be reduced.

Method used

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  • Ship automatic identification system slipway with intelligent transmission power regulation
  • Ship automatic identification system slipway with intelligent transmission power regulation
  • Ship automatic identification system slipway with intelligent transmission power regulation

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0026] Such as figure 2 The shown embodiment of the ship's automatic identification system for intelligently adjusting the transmission power of the present invention includes a processor, a modem, a signal-to-noise machine, an antenna, a power control circuit for adjusting the transmission power of the antenna, and a D / A conversion circuit (DAC) The signal received by the antenna is input to the processor for processing after passing through the signal-to-noise machine and the modem in turn, and the output signal processed by the processor is sent out through the antenna through the modem and the signal-to-noise machine in turn; the control signal output by the processor is converted by D / A The circuit is input to the power control circuit, and the power control circuit adjusts the transmission power of the antenna.

[0027] Such as image 3 As shown...

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Abstract

The invention relates to a ship automatic identification system slipway with intelligent transmission power regulation, which comprises a processor, a modem, a signal noise machine and an antenna, wherein a signal received by the antenna passes through the signal noise machine and the modem in turn to be output into the processor to be processed; the output signal processed by the processor is transmitted out through the antenna after passing through the modem and the signal noise machine in turn; and the slipway also comprises a power control circuit used for regulating the transmission power of the antenna, and the processor regulates the transmission power of the antenna through the power control circuit. Compared with the prior art, the slipway has an additional power control function on the basis of the functions of the AIS slipway, realizes the automatic regulation of the AIS transmission power and strengthens the protection of an AIS communication network.

Description

technical field [0001] The present invention relates to radio systems used on ships, in particular to automatic identification system slipways used on ships. Background technique [0002] Ship Automatic Identification System (AIS) is a digital transmission system working in the VHF frequency band. It realizes the function of collision avoidance and alarm through mutual reporting of azimuth and navigation information. It plays a vital role in ensuring the safety of ship navigation. Its data exchange is far superior to radar systems. According to the International Maritime Convention, all ships larger than 500 tons should install the system. [0003] The AIS system consists of three main elements: base station, A-class berth and B-class berth. The base station is set up on the shore and is the communication coordination center; the A-class berth is mainly equipped with ships over 500 tons, and the B-class berth is for small ships under 500 tons. It is especially pointed out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H04W52/18
Inventor 严新平马枫孙星初秀民吴勇
Owner WUHAN UNIV OF TECH
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