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Low Precision Inertial Navigation Product

Low Precision Inertial Navigation Product

Introduction:
The fiber inertial navigation system is mainly composed of three all-solid fiber optic gyroscopes, three quartz flexible accelerometers, data packing plates, body structural parts and related software.
It measures the angular...
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1、 Overview

The fiber inertial navigation system is mainly composed of three all-solid fiber optic gyroscopes, three quartz flexible accelerometers, data packing plates, body structural parts and related software. It measures the angular velocity and linear acceleration of the carrier motion, and performs temperature and installation. Error compensation such as misalignment angle, nonlinearity, zero position, etc., can automatically search and output true north heading; can provide three-dimensional attitude; provide information for carrier attitude and navigation control, and the measurement result is output through RS422 serial interface.

Low Precision Inertial Navigation Product

2、 system components and functions

The system consists of a chassis, an IMU body (with a three-axis fiber optic gyroscope, a three-axis accelerometer), a gyro motherboard, a metered motherboard, a secondary power supply, a navigation computer, and connectors.

It can meet the requirements of all-weather full-autonomous three-axis attitude measurement of the carrier and has self-alignment function. It can realize short-term pure inertial navigation and combined navigation functions, and output carrier real-time attitude data.

3、 main technical indicators of the product

3.1 Performance indicators

3.1.1 Full Temperature Device Specifications

The gyro is better than 0.05°/h, and the accelerometer is better than 200ug (10s, 1σ).

3.1.2 Initial alignment (at normal temperature 25 ° C)

Alignment mode: self-alignment;

Alignment time: less than 5min (static base)

Horizontal attitude (pitch, roll) alignment accuracy (1σ): ≤0.03°;

Heading alignment accuracy (1σ): ≤0.3°;

3.1.3 attitude maintaining accuracy

1h pure inertia state:

Horizontal attitude (pitch, roll) maintaining accuracy (1σ): ≤0. 05°;

Heading accuracy (1σ): ≤0.2°.

8h position combination status:

Position accuracy (CEP): 10m;

3.2 Volume, weight

The system volume is: 237mm × 157mm × 122mm;

System weight: less than 5Kg;

3.3 Environmental conditions requirements

Operating temperature range: -40 ° C ~ +60 ° C;

3.4 Power supply and power consumption

The average power consumption is 15W, 10W at normal temperature;

Power supply 24V, working voltage 16~32V.

3.5 input and output interface

RS422 input and output interface: send navigation parameters and receive control commands.

4、 Mechanical installation structure

The system outline structure and installation are shown in the following figure:

Low Precision Inertial Navigation Product1



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    +86 29 88767352 
    info@north-star-tech.com
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    18992836912
    20A, Ruixin Building, No. 25 Gaoxin Road, Xi'an

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