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Precision test apparatus and test method of GPS device

A GPS equipment and precision testing technology, applied in the testing field, can solve the problems of low accuracy of static testing and dynamic testing, and achieve the effects of simple structure, strong effectiveness and high measurement accuracy

Pending Publication Date: 2020-03-06
航天科工惯性技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to propose a precision testing device and testing method for GPS equipment, which can effectively improve the testing precision of GPS equipment, aiming at the low precision of static testing and dynamic testing in the prior art.

Method used

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  • Precision test apparatus and test method of GPS device

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Comparison scheme
Effect test

Embodiment 1

[0026] refer to figure 1 , the present embodiment provides a precision testing device for GPS equipment, including a bracket 1, a circular chassis 2, a rotating plate 3, a height adjustment mechanism, a level adjustment mechanism, and a GPS equipment installation platform 12;

[0027] The bracket 1 is connected to the circular chassis 2, the rotating plate 3 is installed in the circular chassis 2 and can rotate in the circular chassis 2, the height adjustment mechanism is installed on the rotating plate 3, and the horizontal adjustment mechanism cooperates with the height adjustment mechanism Connected and the horizontal adjustment mechanism can move along the height direction of the height adjustment mechanism, and the GPS equipment installation platform 12 is installed on the horizontal adjustment mechanism;

[0028] The circular chassis 2 is provided with an angle scale, the height adjustment mechanism is provided with a height scale, and the level adjustment mechanism is p...

Embodiment 2

[0042] This embodiment provides a method for testing the accuracy of GPS equipment. The accuracy testing device for GPS equipment described in Embodiment 1 is used for testing, and the method includes:

[0043] Leveling of the device by bracket and level adjustment mechanism;

[0044] The GPS device to be tested is installed on the GPS device installation platform;

[0045] Fix the height initial position and angle initial position of the GPS device to be measured respectively by the height adjustment mechanism and the rotating plate, move the GPS device to be measured horizontally to a preset distance through the horizontal adjustment structure, collect the first positioning data of the GPS device to be measured and carry out Analysis to obtain the measurement accuracy of horizontal linear displacement;

[0046]Fix the height initial position and the horizontal initial position of the GPS device to be measured by the height adjustment mechanism and the horizontal adjustment ...

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Abstract

The invention provides a precision test apparatus and test method of a GPS device. The apparatus comprises a support, a ring-shaped base plate, a rotary plate, a height adjustment mechanism, a horizontal adjustment mechanism and a GPS device installation platform. The support is connected to the ring-shaped base plate. The rotary plate is installed inside the ring-shaped base plate and is rotatable in the ring-shaped base plate. The height adjustment mechanism is installed on the rotary plate. The horizontal adjustment mechanism is connected to the height adjustment mechanism in a matching manner, and the horizontal adjustment mechanism can move along a height direction of the height adjustment mechanism. The GPS device installation platform is installed on the horizontal adjustment mechanism. The apparatus is simple in structure and high in reliability, and can implement dynamic height, angle and horizontal movement tests of the GPS device. Further, test precision can reach the millimeter level, measurement precision is high, stability is good, effectiveness is strong, and production costs are low.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to an accuracy testing device and testing method for GPS equipment. Background technique [0002] At present, with the improvement of the level of science and technology, GPS technology is more and more widely used, and it continues to penetrate into people's daily life. The requirements for the measurement accuracy of GPS equipment are also getting higher and higher. How to test the measurement accuracy and reliability of GPS equipment Sex is a first and crucial issue. Conventional methods for verifying the accuracy and reliability of GPS equipment fall into two categories: the first type is to perform accuracy testing at static stations, that is, to conduct GPS observations and solve calculations on test points with known coordinates, that is, to obtain positioning coordinates and Known coordinates are compared to calculate its positioning accuracy and reliability index. This me...

Claims

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Application Information

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IPC IPC(8): G01S19/23
CPCG01S19/23
Inventor 杜文恒徐锐颜芳孙贵鑫董建勋
Owner 航天科工惯性技术有限公司