基于主动电场定位的海参水下识别技术

针对现有海参水下识别技术受水下可视条件影响大、设备繁重的问题提出了基于主动电场定位的海参水下识别技术。首先通过测量海参等材料的电导率,验证了主动电场定位技术用于海参识别的可行性;随后模拟海参栖息环境,搭建了海参识别试验平台,研究了提离距离、识别信号特征对海参识别效果的影响;其次研究了海参在不同姿态、不同位置下的识别效果,最后探究了海参与石块、钢块的水下分辨效果。结果表明:在50 mm提离距离下海参引起的扰动势变化率约为5%,与其他物体对主动电场的影响机制明显不同,该技术可以有效识别海参;识别效果的分辨率与传感器提离距离、识别信号特性有关;该技术可对不同位姿、不同环境背景下的海参进行有效识别。

Underwater sea-cucumber identification technology based on active electrolocation

A sea-cucumber underwater identification based on active electrolocation is proposed to solve the problems of the existingunderwater identification technology affected by underwater visual conditions and heavy equipment. Firstly, by measuring the electricalconductivity of sea-cucumber and other materials, the feasibility of using active electrolocation technology for sea-cucumber identificationis evaluated. Then, a sea-cucumber identification test platform is built by simulating the sea cucumber habitat environment. And theinfluence of lift-off distance and recognition signal characteristics on the recognition effect of sea-cucumber is studied. Secondly, therecognition effect of sea cucumber in different posture and different positions is studied. Finally, the underwater discrimination effect ofstone and steel block with sea-cucumber is explored. Results show that, at the lift-off distance of 50 mm, the perturbation potentialchange rate caused by sea cucumbers is about 5% , which is obviously different from the influence mechanism of other objects on theactive electric field. This technology can effectively identify sea cucumbers. The resolution of the recognition effect is related to the liftoff distance of the sensor and the characteristics of the electrical signal. This technology can effectively identify sea-cucumbers indifferent postures and different environmental backgrounds.