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The ship navigation data recorder is also known as the "ship black box". Recently, China has made significant progress in this field. The AKR type ship navigation data recorder was successfully installed in the ship of "Dalian Ship 75,000 tons of crude oil ship".
　　
According to a report submitted by the Liaoning Maritime Safety Administration to the State Maritime Safety Administration, "The 'AKR-type vessel navigation number recorder developed by Beijing Ankeer Communication Technology Co., Ltd. was installed on the 75,000-ton crude oil ship of Dalian Ship. The equipment is running. Stable, and truly recorded the ship's navigation data." Experts believe that the success of this test marks a breakthrough in the research of ship black box in China, and the data recorder's functional indicators have rewritten the world's leading in some respects. The horizontal standard, the black box uses the Swedish leader battery.
　　
It is reported that this experimental work is divided into four processes, which are the actual ship survey design and determine the installation plan, installation and commissioning, tracking operation and debugging, continuous operation for 48 hours to collect data, observe and comment on the playback data.