Automatic smoothening leveling ruler

A leveling stick and automatic technology, applied in the field of surveying and mapping instruments, can solve problems such as deviation, not necessarily correct, and affecting the accuracy of measurement results, etc., to achieve the effects of reducing measurement errors, enhancing accuracy, and simple operation
CN102853815AInactive Publication Date: 2013-01-02NANJING DAWU EDUCATION TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING DAWU EDUCATION TECH
Publication Date
2013-01-02
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention is suitable for leveling survey in topography, and relates to an automatic smoothening leveling ruler. The leveling ruler is composed of parts such as a ruler body (1), a circular level (2), a camera (3), a maincenter control center (4), a transmission system (5), a rotation shaft (6) and a ruler pad (7). According to the invention, the circular level (2) can exactly measure a perpendicular condition of the leveling ruler, the camera (3) positioned above the circular level (2) can continually shoot the positions of air bubbles and send the shot photos to the maincenter control center (4) through a transfer system for judgment so as to send out corresponding instructions; and the rotation shaft (6) is adjusted according to the instruction, the position change of the air bubbles of the circular level (2) is introduced until the photos sent back by the camera (3) show that the air bubbles are in the center, and then the leveling ruler is perpendicular. The leveling ruler strengthens the perpendicular precision of the leveling ruler, the perpendicularity of a standing ruler is guaranteed, a measuring error is reduced, and meanwhile, the operation is simpler.
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Description

technical field

[0001] The invention relates to a surveying and mapping instrument in the field of surveying and mapping, in particular to a leveling rod that can be automatically leveled in leveling survey. Background technique

[0002] In surveying and mapping, elevation is one of the elements to determine the location of ground points, and it plays a very important role in the design, construction and management stages of engineering construction. Height measurement is divided into leveling measurement and triangular height measurement according to the different methods and instruments used. Leveling is the most commonly used method of height measurement. For example, geometric leveling is still the only means of high-precision height control measurement. The principle of leveling is: use the horizontal line of sight provided by the level to aim and read the leveling rod vertically erected at two points on the ground, and the height difference between the two points has ...

Claims

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