Bridge pier avoidance hitting early warning system

Abstract

The invention discloses a bridge pier avoidance hitting early warning system comprising a radar subsystem and an alarm subsystem. The radar subsystem comprises a radio-frequency front-end module and a radar information processing module. The radio-frequency front-end module is used for completing the function of echo signal acquisition. The radar information processing module is used for completing echo signal preprocessing, analog-to-digital conversion, information processing and data distribution, detecting and sensing ships in a monitoring area in real time and sending the information about a ship target in front which is likely to hit a pier to a control module of the alarm subsystem. The alarm subsystem comprises the control module, an acousto-optic alarm module, and a video acquisition module. The alarm subsystem is used for evaluating the threat of the target according to the information about the ship target and forming alarm trigger information, and camera-shooting the ship target in the close-range advancing process when the distance from the confirmed threat target to the pier reaches a corresponding preset distance threshold. With the system, active early warning and surveillance for ships in front which are likely to hit a bridge pier can be carried out at all time and in all weathers.

Description

technical field [0001] The present invention relates to the technical field of bridge pier collision avoidance, in particular to a navigable bridge pier collision avoidance monitoring and early warning system (BPAHEWS: Bridge Pier Avoidance Hitting Early Warning System), which can realize all-weather and all-weather bridge pier active collision avoidance early warning, capable of Complementary with the existing passive collision avoidance system to build a new generation of intelligent ecosystem for bridge pier collision avoidance. Background technique [0002] With the increase in the number of heavy ships, there have been major accidents in which bridges and piers have been hit all over the world. For example, the Lamaracaibo Bridge in Venezuela was hit by a ship in 1964, the Hopwell Bridge in Virginia, USA was hit by a ship in 1977, the Sunshine Viaduct Bridge in Florida, USA was hit by a ship in 1980, the Jiujiang Bridge in Guangdong was hit by a ship in 2008, and in 201...

AI Technical Summary

Problems solved by technology

For example, the active early warning system based on the ship-borne automatic identification equipment (AIS) has the advantage of abundant ship information and situation, but the disadvantage is that both the bridge and the ship need to install the AIS system, and the early warning accuracy is not high; such as the active early warning system based on video or infrared sensors The advantage is that the image is intuitive and the cost is low. The disadvantage is that the warning distance is short and the bad weather is invalid. For example, the active warning system based on laser sensors has the advantage of high accuracy, and the disadvantage is that there are many detection blind spots and the cost is relatively high.

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