Method for realizing automatic precise feeding during breeding of river crabs

Abstract

The invention discloses a method for realizing automatic precise feeding during breeding of river crabs. The method is used for realizing the functions that the speed and flow rate of an automatic-navigation feeding ship can be measured and controlled, the throwing width can be controlled, and residual baits can be measured. The method comprises the steps of measuring the position change of the ship within a period of time through a GPS system to obtain the average ship speed, and adjusting a given value of the ship speed to perform closed-loop control over the ship speed; determining a relation curve between a throwing width-throwing disc rotation speed (voltage) and a flow-vibration motor (voltage) through a bait throwing test; mounting a weighing sensor at the bottom of a feeding machine, determining a relation curve between the gross weight of the feeding machine and the output voltage of the weighing sensor through a feed addition test, and measuring the resistance value of the weighing sensor to obtain the quantity of residual baits; by taking the characteristic that feeding is not carried out in deep ditches of a river crab breeding pond or water plant planting areas into consideration, adopting a series of inflection points for defining the design of a track, wherein each inflection point is described by five parameters including the position (longitude and latitude) of the point, the ship speed of the corresponding straight path between the point and the next inflection point, the bait throwing width and the flow rate.

Description

technical field [0001] The invention relates to the field of bait feeding operation for river crab culture, in particular to a method for realizing automatic fine bait feeding for river crab culture. [0002] technical background [0003] In recent years, there have been more and more areas where river crabs are cultured, and river crab farming has become the fastest-growing and most promising pillar industry in China's fishery production. [0004] Due to the strong geographical restrictions of river crab farming, river crabs cannot move in a large range and can only forage in areas near themselves; the uneven distribution of bait can easily lead to excessive or insufficient bait, and putting too much bait will not only increase the cost , will also lead to water pollution; at the same time, it is the nature of river crabs to compete for food and aggressiveness, and they will kill each other when the density is high and the bait is small; And fled. In addition, the amount o...

AI Technical Summary

Problems solved by technology

Obviously, manual feeding methods and traditional fixed-point feeding machi...

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