Intelligent ornamental bionic fish and method for controlling same

Abstract

The invention relates to an intelligent ornamental bionic fish. A fish head of the bionic fish comprises two pectoral fin steering engines, a pair of pectoral fins and an L-shaped frame; one end of the L-shaped frame is fixedly connected with an elliptical connecting piece of a fish body, the two pectoral fin steering engines are fixed onto the L-shaped frame and are symmetrically mounted in the middle of the fish head, and shafts of the steering engines are meshed with teeth of the pectoral fins. The fish body of the bionic fish comprises a front steering engine of a fishtail, a rear steering engine of the fishtail, steering engine frames, U-shaped frames and L-shaped frames; the two steering engines of the fishtail are respectively fixed onto the two steering engine frames, the two U-shaped frames are respectively connected with an output shaft of the front steering engine of the fishtail and an output shaft of the rear steering engine of the fishtail, the two steering engine frames are respectively connected with the two U-shaped frames by the two L-shaped frames, and the front steering engine of the fishtail is serially connected with the rear steering engine of the fishtail, so that joints capable of oppositely rotating can be formed. The intelligent ornamental bionic fish has the advantages that the pectoral fins of the fish can rotate under the control of the four steering engines, the fishtail can swing under the control of the four steering engines, and accordingly the bionic fish can be in quick swimming, slow swimming, diving and floating gestures and the like; different swimming gestures can be combined with one another, so that the purpose of enriching ornamental effects can be achieved.

Description

technical field [0001] The invention relates to an ornamental bionic fish and a method for controlling its swimming posture, belonging to the technical field of mechanical bionics. Background technique [0002] There are few domestic research institutions engaged in the research of fish propulsion mechanism and robotic fish. Due to the late start and the influence of various factors, there is a considerable gap between the research of fish propulsion mechanism and the development of robotic fish compared with foreign countries. Since the mid-to-late 1980s, Tong Binggang and Dr. Cheng Jianyu of the University of Science and Technology of China adopted a semi-analytical-semi-numerical method to establish a three-dimensional undulating plate theory for simulating fish movement, and gradually began the research on domestic robotic fish. Today, the Institute of Robotics of Beihang University has carried out in-depth research on the technology of fish-like robots (submersibles), p...

AI Technical Summary

Problems solved by technology

Even if the steering gear is used, the pectoral fins are not used together with the tail, and the pectoral fins are not directly connected through the steering gear to realize the floating and diving of the bionic fish, nor are the two steering gears connected in series to realize the acceleration and deceleration of the bionic fish.

At the same time, with the maturity of bionic fish technology and the improvement of social hotspots, the demand for bionic fish entertainment is gradually reflected. When the fish swim together, they will be very uncoordinated

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