Agricultural Machinery MEMS INS Inertial Navigation System with GNSS

Project

Metrics (RMS)

Remark

Heading accuracy

GNSS valid ①

0.1°

Heading holding

0.2°/min

GNSS failure

Attitude accuracy

GNSS is valid

0.1°

Single-point L1/L2, RTK

Attitude holding

0.2°/min

GNSS failure

Positioning accuracy

Horizontal, GNSS valid; RTK

1.5m；1cm+1ppm

Single point L1/L2; Differential

Elevation, GNSS valid; RTK

2.5m；2cm+1ppm

Single point L1/L2; Differential

Position holding, GNSS failure

20m

Unlocked for 60s

Horizontal velocity accuracy

GNSS is valid

0.1m/s

Single-point L1/L2,RTK

Gyroscope

Measuring range

±500°/s

Zero bias stability

4°/h

Allan variance

Accelerometer

Measuring range

±16g

Customizable 200 g

Zero bias stability

0.2mg

Allan variance

Satellite board

Cold start

< 30 seconds

Open environment

Hot start

5 seconds

Open environment

Type of receiver

BDS B1I/B2I/B3I

GPS L1C/A/L2P (Y)/L2C/L5

GLONASS G1/G2

Galileo E1/E5a/E5b

QZSS L1/L2/L5

Communication interface

RS232

Route 2

RS422

Route 1

Electrical characteristics

Voltage

9~36VDC

Power consumption

≤3W

Ripple

100 mV

P-P

Structural characteristics

Size

80 mm×53 mm×23mm

Weight

≤150g

Use environment

Operating temperature

-40℃~+60℃

Storage temperature

-45℃~+65℃

Vibration

20~2000Hz,6.06g

Impact

30g,11ms

Degree of protection

IP65

Reliability

MTBF

30000h

Life span

> 15 years

Continuous working time

>24h

① Effective 2m baseline of dual antenna, or dynamic alignment of single antenna