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Dynamic precision evaluation system for MEMS (Micro Electro Mechanical System) integrated navigation device

A technology for evaluating system and dynamic accuracy, applied in the field of integrated navigation, it can solve the problems of difficult attitude, speed, and position accuracy of MEMS integrated navigation products, and achieve the effect of overcoming data processing problems, ensuring long-term high stability and high flexibility.

Pending Publication Date: 2021-08-24
BEIJING RES INST OF TELEMETRY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problem that it is difficult to evaluate the attitude, speed and position accuracy output by MEMS integrated navigation products under dynamic conditions, and the testing process is simple and easy

Method used

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  • Dynamic precision evaluation system for MEMS (Micro Electro Mechanical System) integrated navigation device
  • Dynamic precision evaluation system for MEMS (Micro Electro Mechanical System) integrated navigation device
  • Dynamic precision evaluation system for MEMS (Micro Electro Mechanical System) integrated navigation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A MEMS integrated navigation device dynamic accuracy evaluation system, including high-precision inertial navigation, satellite navigation receiver and measurement antenna, comparison transfer tooling, data acquisition protocol conversion equipment, host computer and vehicle battery; the product to be tested and high-precision inertial The guide is installed on the comparison adapter tool, and the on-board battery supplies power to the product under test, high-precision inertial navigation, satellite navigation receiver, and data acquisition protocol conversion equipment. Communication with the host computer, while processing the instructions of the host computer, the high-precision inertial navigation and real-time data of the product to be tested are packaged and sent to the host computer for processing to obtain the dynamic position, speed and attitude accuracy of the product to be tested.

[0037] The data acquisition protocol conversion device includes an ARM proces...

Embodiment 2

[0049] A MEMS integrated navigation device dynamic accuracy evaluation system, including high-precision inertial navigation, satellite navigation receiver and measuring antenna, comparison transfer tooling, data acquisition protocol conversion equipment, host computer and vehicle battery; the product to be tested and high-precision inertial The guide is installed on the comparison adapter tool, and the on-board battery supplies power to the product under test, high-precision inertial navigation, satellite navigation receiver, and data acquisition protocol conversion equipment. Communication with the host computer, while processing the instructions of the host computer, the high-precision inertial navigation and real-time data of the product to be tested are packaged and sent to the host computer for processing to obtain the dynamic position, speed and attitude accuracy of the product to be tested.

[0050] The schematic diagram of the data acquisition protocol conversion equipm...

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Abstract

The invention discloses a dynamic precision evaluation system for an MEMS (Micro Electro Mechanical System) integrated navigation device. The dynamic precision evaluation system comprises a high-precision inertial navigation, a satellite navigation receiver, a measurement antenna, a comparison switching tool, data acquisition protocol conversion equipment, a data acquisition upper computer and a vehicle-mounted battery; a to-be-tested product and a high-precision inertial navigation device are fixed on a comparison switching tool, and the to-be-tested product, the high-precision inertial navigation device, the satellite navigation receiver, the measurement antenna, the data acquisition protocol conversion equipment and the vehicle-mounted battery are jointly installed on a test vehicle. The to-be-tested product and the high-precision inertial navigation communication interface are accessed to the data acquisition protocol conversion equipment for protocol conversion and time synchronization. The data acquisition protocol conversion equipment interacts with the upper computer to finish test command response and acquisition of comparison data of high-precision inertial navigation and the tested product in the running process of the test vehicle, so as to obtain the dynamic attitude, speed and position precision error of the tested product. The problem that the attitude, speed and position precision output by the MEMS integrated navigation product under the dynamic condition are difficult to evaluate is solved, and the testing process is simple and easy to implement.

Description

technical field [0001] The invention relates to a dynamic accuracy evaluation system of a MEMS integrated navigation device, which belongs to the technical field of integrated navigation. Background technique [0002] The navigation information output by the MEMS integrated navigation device is the core parameter in many fields such as aviation and aerospace. The navigation information includes attitude, velocity and position information, which is used to solve the attitude, velocity and position control loop of the vehicle, so as to realize the attitude stability and guided flight of the vehicle. Therefore, it is necessary to accurately measure the navigation information output by the MEMS integrated navigation device in a dynamic environment, so as to obtain its dynamic accuracy under the condition close to the real use condition. [0003] The existing dynamic accuracy evaluation methods of MEMS integrated navigation devices mainly rely on theoretical calculation and turn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00G05B19/042
CPCG01C25/00G05B19/0423
Inventor 王磊汪守利杨钊朱凯程翔冯帅张沐松唐珊珊
Owner BEIJING RES INST OF TELEMETRY
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