Combined with the planned overseas exploration of the country at that time, the cooperation of astronomy, geography, shipbuilding and navigation technology, and the use of compass, a series of overseas explorations in the West were caused. Worldwide, the application of compass in navigation led to the circumnavigation of Columbus discovery of america (about 145 1- 1506) and Magellan (about 1480- 152 1). This has greatly accelerated the development of the world economy and provided an indispensable prerequisite for the development of capitalism.
With the outward development of competing countries, new routes and new continents have been discovered one by one, allowing Europeans to see more different things and nationalities in a short time, and then urging Europeans to look at different nationalities and cultures with objective observation and comparison, which is another far-reaching influence of the compass.
Extended data
Modern people have made all kinds of electronic compasses. Smartphones generally have this software. Electronic compass, also known as digital compass, is a method to determine the North Pole by using geomagnetic field. When applied to a mobile phone, it is actually an electronic compass. An electronic compass generally consists of a magnetoresistive sensor and a fluxgate.
Although GPS is widely used in navigation, positioning, speed measurement and orientation, its accuracy is greatly reduced or even unusable because its signals are often blocked by terrain and objects. Especially in urban areas with high-rise buildings and forest areas with dense vegetation, the validity of GPS signals is only 60%, and GPS can't give course information under static conditions.
In order to make up for this deficiency, the method of integrated navigation and positioning can be adopted. Electronic compass is designed to meet this demand of users. It can effectively compensate the GPS signal, ensure that the navigation and positioning information 100% is effective, and it can work normally even if the GPS signal is out of lock, so as to achieve "missing the star without losing direction".
Electronic compass can be divided into plane electronic compass and three-dimensional electronic compass. The plane electronic compass requires the user to keep the compass level when using it, otherwise, when the compass is tilted, it will also give the change of course, but in fact the course has not changed.
Although the plane electronic compass has high requirements for use, it is a good cost-effective choice if the carrier attached to the compass can always remain horizontal. The three-dimensional electronic compass overcomes the strict limitation of the plane electronic compass in use, because there is an inclination sensor in the three-dimensional electronic compass.
If the compass is tilted, the compass can compensate the tilt, so that the heading data is still accurate even if the compass is tilted. Sometimes, in order to overcome the temperature drift, the compass can also build temperature compensation to minimize the temperature drift of tilt angle and pointing angle.
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