Because river crabs cannot move in a
large range, they can only look for food in the vicinity of themselves. Therefore, when feeding, the bait should be evenly distributed on the entire pond water surface. For waters with excessive bait density, feed will be wasted and the remaining feed will deteriorate the breeding environment. ; and for waters where the bait density is too low, it will affect the
food intake of river crabs, and it is easy to cause river crabs to be injured due to food grabbing and fighting, and then cause diseases, leading to the consequences of death of river crabs
[0003] At present, there are generally three methods of baiting and feeding for domestic river crab culture: one is to rely on artificial punting to bait and feed, one person punting, one person baiting, only relying on manual experience, the work efficiency is low, the labor intensity is high, and the feeding cannot be guaranteed. the uniformity of the bait; the second is to rely on the bait feeding
machine to feed the bait. Although this method can be manually operated at a
fixed time and quantity to save labor, it can only be fixed at the same place for bait, and the bait is distributed in a small area on the
shore. In the
water area, other water areas, especially the middle
water area, cannot be covered, and the uniformity of bait feeding cannot be guaranteed; the third is to feed the bait feeder
on board, drive the boat through a
gasoline engine or
diesel engine, and then throw the bait to the In ponds, since the
route of the boat is determined randomly by hand, the randomness is strong, and it is difficult to ensure the uniformity of feeding
[0004] With the development of agricultural
electrification and
automation technology, some automatic bait feeding equipment has appeared, such as the patent "
remote control automatic bait feeding boat" with application No. , the navigation
route is highly random, and the work effect is poor; the patent "aquaculture
robot" with the application number 201310155373.1 can control the feeding rate in real time according to the real-time voyage, speed, and material quantity parameters, so that the feeding is uniform, but there is no monitoring of the feeding process. Modeling and quantitative analysis cannot guarantee the actual
distribution uniformity of bait falling on the water surface; the
patent application number 201410138938.X "an intelligent feeding and
pesticide application
system and device based on
GPS navigation" can receive human-computer interaction subsystem Input tasks and instructions, and control the feeding subsystem to perform feeding actions to achieve precise feed feeding and uniform
drug spraying, and no quantitative analysis is given, which makes it difficult to ensure the uniformity of bait distribution; the
patent application number 201410243137. A wind-driven automatic bait feeding
system and a uniform bait feeding method", using the modeling of the bait throwing
machine, the modeling of the oblique throwing movement of feed particles, the modeling of the cumulative
density distribution of bait on the water surface, and the uniform bait feeding of the automatic bait feeding system Steps such as solving the optimal operating parameters of the automatic bait throwing device automatically determine the feeding amount of the automatic bait throwing device feeder per unit time, the speed of the throwing plate, the throwing fan angle of the bait throwing
machine, the driving speed of the wind-driven boat, and two adjacent bait throwing in the path planning. The optimal operating parameters of the automatic bait feeding system, such as the width of the
stroke, use the Beidou
satellite navigation system to realize
path tracking through the Beidou navigation device, and complete the automatic uniform bait feeding operation, but the specific principles and methods of path planning are not given