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Globe longitude and latitude detector

A technology of latitude and longitude and globe, applied in the field of science and education, can solve the problem of lack of high-precision and rapid standard testing equipment for globes

Inactive Publication Date: 2013-05-01
李中平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the technical problems such as the lack of corresponding high-precision rapid standard detection equipment in the existing finished globes, so as to provide a globe that can realize high-precision, accurate and fast detection of whether there is a label deviation in the commercially available globes, low cost and wide application latitude and longitude detector

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1 The basic geographical information of the globe product is accurate, and the detection conclusion is a qualified method.

[0037] Making radius is respectively the globe latitude and longitude detector of the present invention of radius different specifications such as 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 150mm, 200mm, 250mm, 300mm, 350mm and 400mm, stand-by.

[0038] For the detected terrestrial globe, its radius is R, and the terrestrial globe latitude and longitude detector of the present invention whose radius is selected is R, so that the pole of the semi-melon-shaped transparent spherical shell of the detector coincides with the north pole of the detected terrestrial globe, and the handle is adjusted so that a meridian It coincides with the meridian whose longitude is an integer value in the northern hemisphere, for example, the first meridian on the semi-melon-shaped transparent spherical shell coincides with the east longitude 110° (110°E). If the equa...

Embodiment 2

[0041] Example 2 The basic geographic information of the globe product is inaccurate, and the detection conclusion is unqualified.

[0042] Prepare the different terrestrial globe latitude and longitude detector of the present invention of specification, for the terrestrial globe that is detected, its radius is R, selects the terrestrial globe latitude and longitude detector of the present invention that radius is R, makes the pole of semi-melon-shaped transparent spherical shell sheet in the detector and The South Pole of the globe to be tested coincides, adjust the handle, and the first meridian on the half-melon-shaped spherical shell coincides with a meridian on the globe, for example, coincides with the meridian of 70° West longitude (70°W). If the half-melon is transparent The equator line, tropic line, polar circle line, etc. on the spherical shell do not coincide with the corresponding latitude lines on the globe, or the range of 10° or 15° on the semi-melon-shaped tran...

Embodiment 3

[0049] Embodiment 3 On the northern hemisphere of the globe, the latitude and longitude of point A is measured by using the latitude and longitude detector of the globe according to the present invention.

[0050] On the northern hemisphere of the globe, select the closest point A to point A near the known point A 0 (80°E,

[0051] 40°N), point A 0 The latitude and longitude of is 80° east longitude, 40° north latitude, point A is located at point A 0 nearby. The pole of the semi-melon-shaped transparent spherical shell of the globe longitude-latitude detector of the present invention coincides with the South Pole of the globe, and a meridian on the semi-melon-shaped transparent spherical shell coincides with the east longitude 80° meridian, and the position of observation point A is half-melon transparent. Point A on the spherical shell relative to point A 0 The increasing value of longitude is △x, point A on the semi-melon-shaped transparent spherical shell is relati...

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Abstract

The invention provides a globe longitude and latitude detector, which relates to the technical field of science and education technology and aims at solving the technical problems that the existing finished product globe is lack of corresponding high-precision fast standard detection equipment, and the like. Longitude and latitude nets with the longitude being 20 degrees and the latitude being 90 degrees are printed on a semispherical transparent ball case sheet (1), in addition, longitude lines (2), latitude lines (3), apices (4), an equator line (5), polar circle lines (6) and regression lines (7) are marked on the semispherical transparent ball case sheet (1). The radius of the concave surface of the semispherical transparent ball case sheet (1) is R, and R is the same as the radius of the globe requiring the longitude and latitude detection.

Description

technical field [0001] The invention relates to the field of science and education technology, in particular to a globe latitude and longitude detector used in globe manufacturers and supervisory departments to inspect geographic information related to latitude and longitude in product quality of spherical globes, and for primary and secondary school geography and mathematics teaching and activities. [0002] Background technique [0003] The globe refers to people making a model similar to the earth by shrinking it according to a certain ratio in order to understand the earth and display the geographical things on the surface of the earth. The general name of this model is called a globe, and its surface is a regular sphere. It has the geometric characteristics of a ball. According to the concept of mathematical space thinking, the earth is regarded as a sphere, assuming that the earth rotates along an axis. This axis is called the earth axis. The South Pole, referred to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C1/00G09B27/08
Inventor 庞鸿宇
Owner 李中平
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