Vibration Localization Based On The Characteristics Of Scorpion Predatory Orientation Response

In 2017,the State Council's “New Generation Artificial Intelligence Development Plan” clearly stated that “We must firmly grasp the major historical opportunities of artificial intelligence development and lead the new trend in the development of artificial intelligence in the world.We should take the hardware as the basis,the algorithm as the core,focus on improving the capacity of human-computer interaction and pattern recognition,and aim to form a stable and mature technical system.” As an important part of human-computer interaction and pattern recognition,precise positioning technology based on geomagnetism,sound,spectrum,electromagnetic,and vibration is valuable in the field of smart cities,smart factories,and smart homes.It has become the commercial and technical commanding height of the information industry.Vibration localization is a traditional and frequently used localization method.It achieves passive positioning of the source by detecting the vibration generated by the movement of objects.It is mainly used in underground mines,perimeter security,tunnels,bridges,public places and other environments for security monitoring and fault diagnosis.However,with the development of artificial intelligence technology,the bottleneck of existing positioning technology is increasingly prominent.Therefore,the new solution of vibration localization has become an urgent issue in the field of artificial intelligence.Scorpion is a nocturnal arthropod,whose visual system is highly degraded.Compared with human beings,its nervous system is very underdeveloped.But it has a flair of precise and rapid vibration localization in order to meet the needs of survival,self-defense,competition and reproduction.In complex environments,the scorpion senses the low-frequency vibration signals with amplitude as low as 10 nm,and locate the prey within 0.2 ms.This paper takes the response characteristics of scorpion predatory orientation as the bionic model,and carries out the original innovation research on key technologies of bionic vibration localization from the aspects of biological positioning mechanism,neuron coding mode,technology application,etc.The specific research contents are as follows:1)The scorpion,Heterometrus petersii,is selected as the biological research object,and its vibration receptor,BCSS,is introduced.The combination mode of eight BCSS is discovered.Then a behavioral observation platform is built to carry out the behavioral experiments of the predatory orientation response of the scorpion under the conditions of different BCSS combination modes.It is found that all BCSS are useful for scorpion localization,and they have cooperative relationship in localization behavior.Furthermore,combining the excitation and inhibition of the biological nervous system,it is revealed that the eight BCSS of the circular array use the reverse inhibition mechanism to achieve accurate vibration localization.2)Based on the microstructure parameters of BCSS,a deformable plane model with the C-shaped slits of BCSS is constructed through finite element analysis software to quantifiably analyze the microscopic response of the slits under the vibration load.It is found that the slits have different mechanical sensitivities and directivities.The regression equation of geometric parameters and stress response reveals the internal relationship between the slit structure and the dynamic response.And further analysis shows that the scorpion can modulate the amplitude of the signal by concentrating and shielding through the structure and arrangement of the slits.It reveals that the microstructure of BCSS provides a bioweighted filtering mechanism to process the signals.3)Based on the characteristics of scorpion predatory orientation response,this paper proposes a bionic vibration source localization device.It is patterned after the combination mode of eight BCSS to receive the signals generated by the vibration source,and imitates the coding mode of sensory neurons for position map.The bionic vibration source localization device constructs a similar mapping of the structure,function and information transfer mechanism from the biological localization behavior to the bionic localization method.To verify the effectiveness of the bionic vibration source localization device,some experiments are performed through the real collected vibration signals.The average estimation errors and the relative estimation errors are 3.64°±2.44° and-1.43°±4.14°,respectively.The results indicate that the bionic vibration source localization device has a good performance to estimate the directions of vibration sources under the conditions of different distances and azimuths.4)The coding and decoding of vibration signals are improved by the perceptual characteristics of BCSS,the synaptic regulation mechanism and the information integration of the neuron,which are based on the signal processing mode of scorpion nervous system.The improved localization method is embedded in the bionic vibration source localization device to track the movement of human body in the indoor environment.The tracking rate is 75.52% under the conditions of different people and different walking modes.The results show that the improved vibration source localization device has a good performance to estimate the direction of a moving person.In the future,the biological characteristics,biological mechanism,mathematical model and technical application of the scorpion localization behavior will be studied in depth to further promote the development of rapid,efficient and high-precision bionic positioning systems and other related engineering research.