| About 70 percent of the Earth’s surface is occupied by Ocean area which has a very rich and has not been fully exploited marine natural resources that can provide adequacy desalination of sea water, marine biology, natural gas and seabed minerals for human beings. China is one of the biggest Ocean areas in the world and possesses 3 million square kilometers Ocean area, but china is not marine power, so it has important strategic significance for the further development and utilization of marine resources. For the exploitation of biological resources and mineral resources in the depths of the ocean, it is often necessary to grasp the real-time situation of the deep-sea environment, such as realize remote monitoring, improve the work efficiency of the deep-sea.This paper mainly designed a high-definition which is carrying on scientific equipment that’s for deep-sea expedition, the specifications of video resolution in this deep-sea HD camera are designed 1080 P, frame rate of data transmission can reach 30 fps and can adapt to 4,000 meters underwater poor working conditions.The HD camera is often combined with other instrument, such as the deep-sea of new TV grab sampling instruments, marine biological sampling, deep in the hole coring rig, "deep-sea creatures trawl" and so forth. Deep-sea HD camera system in the choice of image sensor requires high resolution, high-resolution, low-impact distortion characteristics. The main processor in the system will be collected high-resolution image after image restoration, the white balance processing, automatic exposure control, edge enhancement optimized image compression encoding, and then through the Ethernet cable to the compressed video data from several kilometers transfer to a deep-sea monitoring platform deck, the expedition team members need only log in on the PC connected to the Web server video surveillance, real-time on the deep investigation of the environmental monitoring, and the precious monitoring data for storage, provide reliable data for deep research.This paper from four prospect to talk about the main contents of the research subject, they are the topic background, research significance, domestic and abroad development situation and the future development trend. According to the related principle and the typical design scheme select a plan which include the system’s hardware and software and complete the design accordingly.The design and realization of the HD camera is consist of the embedded system hardware structure and watertight enclosure structure. As to embedded system hardware structure design, the main processing board image sensor is MT9P031 sensor chip which is provided by the micron company, the main processor is DaVinci series video processor chip DM368 which is made by TI company. The DM368 processor is a perfect main processor in many camera field products, such as video camera、digital camera、HD video communication system. The watertight envelope window is consisted of quartz glass, the front end cover, shell and 316 L stainless steel material, the communication interface uses the watertight plug to ensure the communication in the 4000 meters underwater is normal.The design and implementation of software in high-definiton cameras is consist by two major parts: The embedded system software driver design and the Web server control interface design. The software of embedded system mainly complete the design of the V4L2 video driver and DM9161 nic driver, these can provide support for video decoding system and network transmission; the Web server interface mainly complete system login and video surveillance design, all of these combine can provide monitor control platform for the expedition members. |
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