Accurate bait feeding method for river crab breeding based on autonomous working boat

Abstract

The invention discloses an accurate bait feeding method for river crab breeding based on an autonomous working boat, which comprises the steps of firstly determining the throwing amplitude of a bait feeding machine according to the spacing of channels in the path plan of a bait feeding boat, and setting the travel speed of the working boat according to working efficiency requirements; then analyzing image information collected by an underwater camera to obtain the distribution condition of river crabs in the current field-of-view region; and timely adjusting the feeding flow according to the distribution of the river crabs. In addition, whether there is a river crab-free region in the current channel area due to poor water quality can be monitored by the combination of the underwater camera and a dissolved oxygen sensor. Once found, the location is sent to a monitoring APP of a user mobile phone. The accurate bait feeding method can realize accurate feeding of the bait, can reduce thewaste of the bait while ensuring sufficient bait supply for the river crabs, effectively prevents the water quality from being deteriorated due to excessive feeding of the bait, and significantly improves the benefit of river crab breeding.

Description

technical field [0001] The invention relates to a method for accurately feeding river crabs with bait, and particularly designs a method for precisely controlling the feeding of bait by collecting distribution information of underwater river crabs through an underwater camera of an autonomous operation ship. Background technique [0002] River crab occupies a large area in my country's aquaculture industry, and is one of the main aquatic products for Chinese fishermen to increase their income. At present, river crab farming in my country is mainly distributed in Jiangsu, Hubei, Anhui and other provinces, and Jiangsu accounts for more than half of the output. Although the output of river crab farming is so high, the actual labor expenditure is also very large. At present, most of the river crab culture in my country still relies on artificial punting and fixed-point feeding by bait feeding machines. Both of these two kinds of feeding have the problem of blindness. Although ...

AI Technical Summary

Problems solved by technology

At present, most river crab farming in my country still relies on manual punting and fixed-point feeding by bait feeding machines. Both of these two kinds of feeding have the problem of blindness.

Although there have been some autonomous or semi-autonomous feeding equipment in recent years, such as the "mobile autonomous bait feeding machine and feeding method" in the patent application number 201510614663. The problem of the small coverage area of ​​feeding is solved, but the use of this equipment needs to set up a circular slideway on the shore, and the cost is too high; the patent application number is 201610710797.3 "An autonomous navigation crab breeding baiting device and uniform baiting method" Use the self-navigating workboat as the carrier to evenly feed the bait, but this method is to solve the problem of uniform feeding. Is it applicable to the situation of uneven distribution?

In fact, river crabs are often not evenly distributed, so feeding them according to the method of uniform feeding is sometimes unscientific

At the same time, there may be a problem of water quality deterioration due to long-term feeding of bait due to no river crab activities in a certain area

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