Riverway ship traffic analysis system and method

Abstract

The invention discloses a riverway ship traffic analysis system and a riverway ship traffic analysis method. The system comprises an underwater sound sensor, a transmission unit, a processing unit andan image acquisition unit, the underwater sound sensor is arranged on a riverbed, the image acquisition unit is arranged at the upstream and the downstream of the position where the underwater soundsensor is located, and the image acquisition unit and the underwater sound sensor are connected with the processing unit through the transmission unit. The riverway ship traffic analysis method basedon the system comprises the steps: detecting and transmitting ship noise to the processing unit; converting data into an oscillogram; intercepting a detection waveform; selecting a plurality of detection time points, and intercepting ship noise; establishing a curve graph; and S3, calulating the number of wave crests in each curve graph, obtaining an average ship traffic number, and returning to the step S3. The system has the advantages that the image acquisition unit only detects whether a ship enters and exits or not, and the requirement for the visibility of a river channel is low; image acquisition and sound detection are combined, and the ship traffic detection accuracy is high.

Description

technical field [0001] The invention relates to the field of channel management, in particular to a flow analysis system for river vessels. Background technique [0002] By obtaining the flow of ships in the river, the shipping management department can grasp the actual situation, basic characteristics and general laws of water traffic in a specific water area from a macro and micro perspective. [0003] Commonly used river ship flow detection methods mainly include AIS system and video monitoring, etc. AIS is the abbreviation of Automatic Identification System. The AIS system is composed of shore-based base station facilities and ship-borne equipment. The ship with AIS installed and turned on will transmit its current ship's position and course to other ships and base stations with AIS installed and turned on through satellite, so that the status of each position of the channel can be known at a glance through the screen of the AIS terminal. Here, the effectiveness of the...

AI Technical Summary

Problems solved by technology

Here, the effectiveness of the AIS system largely depends on the consciousness of the crew, but in reality, a large part of the passing ships are often not equipped with AIS, or installed but not turned on, which makes the flow of river vessels The test result has a large error

Video monitoring is to arrange high-definition video probes at specific positions in the waterway, capture real-time cross-sectional images of the waterway, and then perform graphic detection on the images to judge passing ships and navigation conditions. Video monitoring is highly dependent on river channel visibility and algorithms , once the visibility of the river channel is poor, when two ships partially overlap, they are likely to be identified as the same ship, which will affect the accuracy of ship flow detection

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