渔用声纳电子示位标防盗技术研究  

The research on security technology of position indicating radio beacon for fishing sonar

作　　者：倪汉华[1,2] 杨海马[1,3] 谌志新[2] 胡恒庆[1,3] 江涛[2] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]中国水产科学研究院渔业机械仪器研究所,农业部渔业装备与工程技术重点实验室,上海200092 [3]中国科学院上海技术物理研究所,上海200083

出　　处：《上海海洋大学学报》2014年第2期284-289,共6页Journal of Shanghai Ocean University

基　　金：中国水产科学研究院基本科研业务费(2013A0202);国家高技术研究发展计划(2012AA092302)

摘　　要：针对我国金枪鱼捕捞渔船上的无线电示位标装备现状，特别是为了防止盗取设备强占渔场的现象发生，对带有预警防盗功能的声纳示位标技术展开研究与试验，系统将渔用声纳与卫星电子浮标整体集成，利用水声数据采集技术与卫星数据通信技术，通过水下拾音器采集柴油机噪声的音频信息，该系统集成了卫星定位、声纳探测、无线电与卫星通讯，并开发出了嵌入式防盗设备，系统实现了示位标常规功能的同时增加了有效的预警防盗功能。可以提高我国金枪鱼鱼群探测信息化水平并保证设备的安全性。初步试验结果显示试验选用的渔民标准配备的挂机螺旋桨启动时的频率值稳定在8．5kHz左右，且空蚀效应明显，在海洋噪声普遍高于10．3kHz的环境下，嵌入式防盗系统在50～100m范围内可准确实现设备的预警防盗，且抗干扰能力强，相比于其它防盗方式更为实时有效。In order to avoid continous occurrence of stealing equipments and forcibly occupying fishing grounds, it is so important to develop position indicating radio beacon system with warning function. The system integrates the fishing sonar and position indicating radio beacon as a whole by means of low power consumption data collection technology and satellite data compression technology together with the combination of audio information extraction and infrared technology. Dependent on cavitation effect of the propeller, noise of the diesel engine would be collected through the underwater microphone. In the preliminary experiment, the signal of diesel noise were collected and saved in the computer, in addition, the engine would be turned off and the underwater noise would be collected . In order to observe spectrum and bands of the noise, the signal of noise would be transformed to digital signal and analysed by fast fourier transform with software program in computer. So that the alarm hardware could be designed which depended on ARM board. In embedded systems, acoustic signals were collected and processed with micro controller, and it could indicate whether there is a diesel boats. As the system integrates satellite positioning, sonar detection, radio communication, satellite communication and anti-theft on equipments, the real time transmission and monitering of fishes information could be achieved, which greatly improves the informatization level and fishing efficiency in China＇ s tuna detection, and promotes the high efficiency of oceanic fishery resources. Experimental results show that the common small hook propeller will radiate noise, and frequency of the sound signal is about 8.5 kHZ when it runs steady .

关 键 词：示位标 声纳 预警防盗 

分 类 号：S951.2[农业科学—水产养殖]