为了更好地提高舰船水下维护能力,针对现有水下机器人视频系统清晰度低、对比度低以及工作时海洋生物附着的问题,本文设计了一套用于舰船监测的水下机器人视频系统。通过光场分布实验仿真,计算一种水下灯的方案,能够将光场分布效果达到最佳;利用超声波传感器,设计一种新型的可自清洁的水下灯,能够有效防止生物附着。该系统优化了水下灯和水下摄像机的配置方案,确定了光源方向角和摄像机安装位置,跟现有的视频系统相比,显著提高了清晰度和对比度。该系统可达到2592×1944分辨率、25 fps帧率的摄像机视频信号和水下灯的控制信号传输效果。经过实验验证,该系统可以很好地提高水下成像效果,增强舰船水下维护能力。
In order to better improve the underwater maintenance capabilities of ships, this paper designs a set of underwater robot video systems for ship monitoring in view of the problems of low definition, low contrast and marine organisms in the existing underwater robot video systems. Through the experimental simulation of light field distribution, a scheme of underwater lamp is calculated, which can achieve the best light field distribution effect. Using ultrasonic sensors, a new type of self-cleaning underwater lamp was designed, which can effectively prevent biological attachment. The system optimizes the configuration of underwater lights and underwater cameras, determines the direction angle of the light source and the installation position of the camera, and significantly improves the clarity and contrast compared to the existing video system.The system can achieve 2592×1 944 resolution, 25 fps frame rate camera video signal and underwater lamp control signal transmission effect. It has been verified by experiments that the system can improve the underwater imaging effect and enhance the ship's underwater maintenance capability.
2024,46(3): 116-120 收稿日期:2023-01-18
DOI:10.3404/j.issn.1672-7649.2024.03.020
分类号:U665
基金项目:国家自然科学基金资助项目(62271236,12171205);江苏省自然资源发展专项资金资助(海洋科技创新)项目(JSZRHYKJ202116);研究生科研与实践创新计划项目(KYCX2021-053, KYCX22_3395)
作者简介:杨淼(1978-),女,教授,研究方向为海洋信息处理、人工智能及其应用、计算机应用技术、智能信息处理等
参考文献:
[1] 伍哲, 郭文勇, 曹承昊. 基于改进DCP水下图像增强算法研究[J]. 舰船科学技术, 2022, 44(23): 132-136.
[2] SABER H, CHIHEB Z, HABIB D, et al. Innovative design of an underwater cleaning robot with a two arm manipulator for hull cleaning[J]. Ocean Engineering, 2019, 181: 303-313.
[3] 鲍艳. 考虑浑浊度的水下无人航行器采集图像色彩误差校正方法[J]. 舰船科学技术, 2022, 44(15): 161-164.
[4] 徐文, 鄢社锋, 季飞, 等. 海洋信息获取、传输、处理及融合前沿研究评述[J]. 中国科学:信息科学, 2016, 46(8): 1053-1085.
[5] TROBBIANI G A, VENERUS L A. A novel method to obtain accurate length estimates of carnivorous reef fishes from a single video camera[J]. Neotropical Ichthyology, 2015, 13: 93-102.
[6] 吴弘. 南黄海光学特性研究[D]. 厦门: 厦门大学, 2014.
[7] 王健, 陈伟, 曹园山, 等. 基于STM32的新型水下滑翔器姿态调节系统设计[J]. 舰船科学技术, 2022, 44(17): 68-71.
[8] BOSCH J, GRACIAS N, RIDAO P, et al. Omnidirectional underwater camera design and calibration[J]. Sensors, 2015, 15(3): 6033-6065.
[9] BTRT M J, HARVEYES, LANGLOIS TJ. Within and between day variability in temperate reef fish assemblages: learred response to baited video[J]. Journal of Experimental Marine Biology and Ecology, 2012, 416: 92-100.
[10] 沈凌敏, 张琦, 何俊华, 等. 水下微光高速摄像照明技术的研究与应用[J]. 微计算机信息, 2010, 26(1): 111-112+143.
[11] 张法全, 王国富, 叶金才, 等. 水下光学监控系统照明方式的研究[J]. 光子学报, 2011, 40(7): 1061-1065.
[12] 董会, 温亚楠, 朱建鑫, 等. 用于水下微光监控系统的成像系统设计[J]. 光电技术应用, 2016, 31(3): 25-27+36.
[13] 张利, 孙传东, 何俊华. 光源角度配置对水下成像图像质量影响的研究[J]. 应用光学, 2010, 31(4): 579-583.
[14] 朱春丽, 贾鹏, 尹丰, 等. 三自由度水下摄像照明系统设计[J]. 石油矿场机械, 2020, 49(5): 13-17.
[15] YOERGER DANA R, et al. A hybrid underwater robot for multidisciplinary investigation of the ocean twilight zone. [J]. Science Robotics, 2021, 6(55): eabe1901.
[16] LEFEBVRE A, THOMPSON C E L, COLLINS K J, et al. Use of a high-resolution profiling sonar and a towed video camera to map a Zostera marina bed, Solent, UK[J]. Estuarine, Coastal and Shelf Science, 2009, 82(2): 323-334.
[17] 周晶, 车宇超, 高健, 等. 基于水下移动平台的多传感器水质监测系统研制[J]. 实验室研究与探索, 2022, 41(7): 76-79.
[18] 张小波, 姜静波, 张立斌, 等. 海洋牧场环境要素自动采集系统的设计[J]. 海洋科学, 2017, 41(6): 61-64.
[19] GOETZE J S, JUPITER S D, LANGLOIS T J, et al. Diver operated video most accurately detects the impacts of fishing within periodically harvested closures[J]. Journal of Experimental Marine Biology and Ecology, 2015, 462: 74-82.
[20] LI K, YU H. Design of underwater high-definition video and digital optical fiber transmission system[C]//2016 6th International Conference on Machinery, Materials, Environment, Biotechnology and Computer. Atlantis Press, 2016: 1887-1891.
[21] 毛成责, 魏爱泓, 张咏, 等. 秦山岛周边海域大型底栖动物群落健康状况评价[J]. 环境监控与预警, 2022, 14(1): 72-78.
[22] 张志根. 面向水下监测的移动式视频实时传输系统设计与实现[D]. 杭州: 浙江大学, 2016.
[23] 曹晓燕, 谢仁富, 张彦敏. 基于LED的水下目标高速摄像照明系统设计[J]. 舰船科学技术, 2014, 36(8): 118-122+136.