SNC300D-DGI Optical Fiber Integrated Navigation System

Product overview
SNC300D-DGI is based on cost-effective closed-loop fiber optic gyroscope, accelerometer and high-end GNSS receiving board. It is realized through multi-sensor fusion and navigation solution algorithm to meet the requirements for accurate measurement of attitude, heading and position in application fields such as medium and high-precision mobile measurement system and large UAV

1. Product features
▶ It has the function of shaking base / moving base alignment
▶ GNSS / odometer / DVL and other multi information fusion integrated navigation
▶ High reliability, suitable for strong vibration and large impact environment
▶ Support users to customize on demand
▶ High precision north seeking without external motion requirements

2. Main application fields
▶ Reference inertial navigation system for large UAV
▶ Marine compass
▶ Positioning orientation
▶ Underwater platform (AUV, ROV, etc.)
▶ Intelligent mining machinery

3. Performance index

Parameter		Technical indicators
Position accuracy	Single point (RMS)	1.2m
	RTK（RMS）	2cm+1ppm
	Post processing (RMS)	1cm+1ppm
	Out of lock accuracy (CEP)	2nm, out of lock for 60min ①
Heading (RMS)	Combined accuracy	0.1°②
	Post processing	0.01°
	Lock loss retention accuracy	0.02①, out of lock for 60min
	Self north seeking accuracy	0.1③ SECL, 15min alignment
Attitude (RMS)	Combined accuracy	0.01°
	Post processing	0.006°
	Lock loss retention accuracy	0.02①, out of lock for 60min
Horizontal velocity accuracy (RMS)	0.05m/s
Timing accuracy	20ns
Data output frequency	200Hz④
Gyroscope	Range	300°/s
	Zero bias stability	0.02°/h⑤
	Scale factor nonlinearity	50ppm
	Angular random walk	0.005°/√hr
Accelerometer	Range	16g
	Zero bias stability	50ug⑤
	Scale factor nonlinearity	50ppm
	Velocity random walk	0.01m/s/√hr
Physical dimensions and electrical characteristics	Overall dimension	176.8mm×188.8mm×117mm
	weight	< 5kg (excluding cable)
	input voltage	12～36VDC
	Power waste	< 24W (steady state)
	Storage	reserve
Environmental indicators	Working temperature	-40℃~+60℃
	Storage temperature	-45℃～+70℃
	Random vibration	3.03g，20Hz~2000Hz
	MTBF	30000h
Interface characteristics	PPS, EVENT, RS232, RS422, CAN (optional)
	Network port (reserved)
	Antenna interface
	Wheel speed sensor interface