Height measuring device

An altimeter and altitude technology, which is applied in measuring devices, altitude/horizontal measurement, surveying and navigation, etc., can solve the problem that the data update rate is difficult to obtain, the data update rate cannot be set arbitrarily, and the reliability of the altitude value of the satellite navigation and positioning system is reduced, etc. problem, to achieve the effect of reducing the drift of the altitude value and working reliably

Inactive Publication Date: 2010-03-10
TSINGHUA UNIV
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Problems solved by technology

The calculation results of satellite navigation and positioning system receivers can only be output at a few specific frequencies between 1 Hz and tens of Hz. The data update rate cannot be set arbitrarily, and a higher data update rate is even more difficult to obtain.
These problems reduce the reliability of the altitude value calculated by the satellite navigation and positioning system receiver

Method used

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Embodiment Construction

[0024] The present invention provides a height measuring device, and the present invention will be further described below through the description of the drawings and specific embodiments.

[0025] figure 1 It is a structural representation of the present invention. The height measuring device of the present invention implements that the mobile body of the carrier is a micro-aircraft or a ground mobile body. The air pressure measurement component and the satellite navigation and positioning system receiver are respectively connected with the judgment and calculation component; the power management component is respectively connected with the barometric pressure measurement component, the satellite navigation and positioning system receiver, the judgment and calculation component. (1) The air pressure data obtained by the air pressure measurement component can be output with a standardized data interface. Its function is to measure the air pressure and output the air pressure ...

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Abstract

The invention relates to a height measuring device based on the atmospheric pressure measurement and the data processing of a satellite navigation and positioning system, belonging to the field of height measuring equipment. An atmospheric pressure measuring component and a receiver of the satellite navigation and positioning system are respectively connected with a judgment component and a computing component; the atmospheric pressure measuring component computes atmospheric pressure height according to the atmospheric pressure; the receiver of the satellite navigation and positioning systemcomputes the height of the satellite navigation and positioning system and judges whether the satellite navigation and positioning system discontinues or skips points; when the satellite navigation and positioning system does not discontinue or skip points, the atmospheric pressure height can be corrected by the height of the satellite navigation and positioning system; and when the height of thesatellite navigation and positioning system is not updated or discontinues or skips points, the final height value is equal to the value of the atmospheric pressure height so that a correct and reliable height value with high update rate can be obtained.

Description

technical field [0001] The invention belongs to the field of altitude measurement equipment, in particular to an altitude measurement device based on air pressure measurement and data processing of a satellite navigation and positioning system. Background technique [0002] In general, heights have the property of being higher at lower heights and lower at higher heights. Conventionally, there is known an altimeter that utilizes this property and measures an altitude using air pressure. [0003] However, the air pressure measured by the original altimeter is directly corresponding to the altitude, but the air pressure will not only change due to the altitude, but also be affected by factors such as weather changes, so the measured altitude will contain many factors. error. For example, when the height of the altimeter does not change, the air pressure will also change due to weather changes, so that the measured altitude value will also change. The above-mentioned error i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C5/06G01S1/02
Inventor 郭奇熊威刘绍鹏周兆英叶雄英
Owner TSINGHUA UNIV
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