Bat-imitating dynamic sonar device and use method

Abstract

The invention belongs to the technical field of sonar devices, and provides a bat dynamic simulation sonar device and a use method, and the device comprises a sonar transmitting device which is provided with a bionic nose blade on the side surface, and is used for simulating the movement of the bat nose blade and transmitting an ultrasonic signal; a first driving mechanism is connected to the lower nose leaf in the bionic nose leaves, a second driving mechanism is connected to the upper nose leaf, and third driving mechanisms are connected to the leaves on the two sides of the nostrils; the echo receiving device is provided with bionic ears on the same side with the bionic nose blades and is used for simulating the movement of the ears of the bats and receiving echo signals; the bottom of the bionic ear is connected with a fourth driving mechanism used for driving the bionic ear to rotate, and the upper portion of the back side face of the bionic ear is connected with a fifth driving mechanism used for driving the bionic ear to bend and deform. A plurality of driving mechanisms are connected to the bionic nose blades and the bionic ears so as to comprehensively simulate the opening and closing movement of the nose blades of the bats, the synchronous or alternate rigid rotation movement and non-rigid deformation movement of the double ears and the combined movement of the nose blades and the ears.

Description

technical field [0001] The invention belongs to the technical field of sonar devices, and in particular relates to a bat-imitation dynamic sonar device and a method of using the same. Background technique [0002] The sonar system of bats is highly compact. It only uses the mouth or nose to transmit ultrasonic signals, and the two ears to receive echo signals and extract useful sensing information. It can quickly and accurately complete environmental detection, target positioning, and detection in a completely dark and complex natural environment. Prey capture and other tasks. Scholars at home and abroad have conducted a large number of experimental studies on the biological sonar behavior of bats, and found that the nasal lobes (the baffle-like structure around the nose) and ears of hoofed bats can undergo dynamic deformation of different degrees and modes during sonar signal transmission and echo reception. , among which, the movement mode of the nasal lobe is mainly open...

AI Technical Summary

Problems solved by technology

[0003] The inventors found that most of the current bat-like sonar devices are static, that is, the dynamic deformation of the nose lobe and ears is not considered. Among them, the sonar transmitter usually directly uses the ultrasonic transducer to transmit ultrasonic signals without considering the structure of the nose lobe, and the echo receiver Most of the sonar devices directly use ultrasonic transducers or microphones (arrays) to receive echo signals, and a few use rigid bionic ear models or simplified baffle models; while there are few bat-like dynamic sonar devices, mainly made by Rolf Mueller et al. Designed for a prototype, it mainly simulates the opening and closing movement of the bat's nose lobe and the synchronous non-rigid movement of the binaural ears, without considering the rigid movement of the binaural ears, alternating movement and its cooperation with the movement mode of the nose lobe

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