W90221X-based global positioning system (GPS) electronic marine map navigator

Abstract

The invention discloses a W90221X-based global positioning system (GPS) electronic marine map navigator, and belongs to the field of application of computer embedded electronic marine map navigators. The home-made electronic marine map navigator with GPS navigation function used in inland seas is researched and produced. The electronic marine map navigator is designed by adopting full-automatic embedded software and hardware; and a global coordinate system, self-made regional charts of China and partial inland charts of the Yangtze River channel, the water area of Taihu Lake and the like are adopted in the electronic marine map navigator. Main information capable of being displayed by a host screen comprises real-time Gregorian calendar, lunar calendar date and Beijing time, real-time position (longitude and latitude), speed and direction of a ship, longitude and latitude of a cursor point, distance between the cursor point and the ship, direction of the cursor point, marine topographic maps (which can be zoomed in and out and can display the information such as marine area names, navigation marks, water depth and the like) around the ship, and other comprehensive information (such as sweater temperature, power supply voltage, satellite state and the like). A host has the main functions of determining a navigation mode, recording ship positions, a man-overboard boat (MOB), way points, marks and ship routes, editing the ship positions, the way points, the marks, the ship routes and courses, viewing the MOB, calling the way points, the ship positions, the ship routes and anchor points, setting display, parameters, delivery and positioning, measuring the distance, displaying the calendar, data and front views and the like.

Description

Technical field [0001] Computer embedded (electronic chart navigator) application. Background technique [0002] In recent years, with the development of science and technology, navigational instruments have developed rapidly, especially navigational aids related to shipping safety have attracted the attention of the government and ship owners. Among them, GPS locators, electronic charts, and seabed depth sounders (also used for fish detection) are high-tech products in recent years. They are necessary equipment for merchant ships, fishing boats, work boats, yachts, etc. All ships must be equipped with equipment such as GPS locators, electronic charts, etc. At present, these equipments are basically dependent on imports. The equipment prices are high, maintenance is difficult, and the conditions of use at sea are poor. Generally, the equipment has to be bought new in 2-5 years, and the cost of use is relatively high. However, there are very few domestically produced naviga...

AI Technical Summary

Problems solved by technology

At present, these equipment basically rely on imports, the equipment price is high, maintenance is difficult, and the conditions of use at sea are poor. Generally, the equipment has to be bought new in 2-5 years, and the cost of use is relatively high.

However, there are very few domestically produced navigation equipment in my country, and most of them are assembled or labeled for sale. There is a manufacturer of GPS chartplotters in Shenzhen, and there is no manufacturer in Zhejiang Province.

The imported GPS locators and electronic charts currently on the market have the following main disadvantages: 1. The charts used by the GPS chartplotters are relatively old, and the domestic navigation channels are also changing in recent years, and the charts made abroad There are few markers on the map, the sea area is incomplete, and the information is unknown, especially along the coast, which has the largest change, which brings a large error to the navigation reference

3. The cost of equipment is high, generally around 10,000 yuan

4. Using industrial computer as the main processor, the system stability and confidentiality are poor

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