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目的:为获得蝗虫捕集装置的优化参数,给蝗虫灾害机械化捕集装置研制提供技术支持。方法:针对近光激发蝗虫趋光特性,利用蝗虫光电诱导滑移捕集行为装置,测试了机械捕集物理环境中蝗虫滑移捕集行为特征,分析了捕集光照环境及其物理特征引起的蝗虫生物摩擦行为对滑移捕集的影响,探讨了蝗虫趋光滑移捕集的增益因素及机理。结果:LED光源恒定光照突变特性,对蝗虫趋光视觉行为的调控,易化了趋光捕集实现,而通道光照及倾斜捕集环境特征,强化了其行为响应,产生了增益捕集实现的滑移弹跳碰撞捕集行为,且当通道高度及上、下层通道倾角组合为65 mm和(30°、45°)时,捕集作用效果最佳;通道内微弱光照环境,对蝗虫运动视觉的抑制性突变刺激,有效调控了生物摩擦控制下的响应调节,产生了或滑移或滑移弹跳碰撞捕集行为,且上层通道对蝗虫弹跳碰撞阻碍效应及下层通道滑移的导引作用,有助于蝗虫趋光捕集的快速实现;30 ms发光间隔频闪光照激发蝗虫趋光捕集效果较优,640 ms发光周期交变光照调控蝗虫行为反应效果较佳。结论:试验中,频闪交变及恒定捕集光照环境调控蝗虫生物摩擦控制下滑移行为响应的敏感性,制约了捕集效果,则需利用频闪交变耦合光照的激发特性,结合通道结构组合的最佳捕集参数,增加有效激发捕集通道内蝗虫滑移弹跳行为的调控性措施,来提高蝗虫的趋光捕集效果。
Objective: To obtain the optimal parameters of locust catching device, provide technical support for the development of locust catastrophe catapult. Methods: According to the phototactic characteristics of locusts stimulated by low beam, the locust glide trapping behavior in the environment of mechanical catching was tested by using locomotion photo-induced slip trapping device. The effects of catching light environment and its physical characteristics The influence of locusts biofriction on slippage and trapping, and the gain factors and mechanism of locust gliding trapping were discussed. Results: The constant light illumination of LED light source controlled the phototactic behavior of grasshoppers and facilitated the phototactic capture, while the characteristics of channel illumination and tilt capture environment strengthened their behavioral responses and resulted in the gain capture Slippery collision collision trapping behavior, and when the channel height and upper and lower channel inclination combination of 65 mm and (30 °, 45 °), the best capture effect; channel weak light environment, the locust vision Inhibitory mutation stimuli effectively regulate the response regulation under the control of biological friction, resulting in a slipping or slipping collision or trapping catastrophe, and the guiding effect of the upper channel on the hindering impact of locust bounce and the slip of the lower channel is Which can help the rapid locust tropism capture. The 30 ms glittering stroboscopic light stimulates the locust photophobics to catch the photoperiod, and the 640 ms luminescence period alternates with the light to control the locust’s behavioral response. CONCLUSION: In the experiment, the stroboscopic alternating light and constant trapping light environment control the sensitivity of locust biostimulation to the slip response and restrict the trapping effect. The excitation characteristics of the stroboscopic alternating light illumination should be used in combination with the channel structure The best combination of the capture parameters, increase the effective excitation trap locust slippage behavior regulation measures to improve the locust’s light trapping effect.