NM871B-A Automotive-grade Integrated Navigation and Positioning Module

NM871B-A

TheNM871B-Aautomotive-gradecombinednavigationandpositioningmoduleisacompacthigh-precisionpositioningmodulebasedonthebasebandradiofrequencyintegratedchip"NEMO"independentlydevelopedbyJinweiJicheng.ItsupportsthereceptionofsignalsfromallconstellationsandallfrequencypointsofGNSS.TheNM871B-Aautomotive-gradecombinednavigationandpositioningmodulesupportsvariousdifferentialpositioningmodessuchasRTKandDGNSS..

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Product features

Vehicle-grade design
The module is designed using automotive-grade components.
Support for receiving the full frequency band signals of Beidou
支持BDS、GPS、GLONASS、GALILEO全系统全频点信号体制；支持10Hz RTK定位，支持PPP、PPP-RTK等定位模式
Built-in inertial navigation system, supporting integrated satellite-inertial positioning
GNSS + INS deep coupling and INS-assisted calculation, with faster calculation speed and higher availability
Stable property
Integrate highly robust algorithms to maintain stable performance in complex environments.

Technical Index

performance index	Module model	NM871B-A
	Receiving satellite frequency point	BDS	B1I、B2I、B3I、B1C、B2a、B2b
		GPS	L1C/A、L1C、L2C、L5
		GLONASS	L1、L2
		Galileo	E1、E5a、E5b
		QZSS	L1、L2
		SBAS（match）	L1C/A
	Update rate	original data	10Hz（Pure guidance system）	5Hz（Start the integrated navigation system）
		RTK location	10Hz（Pure guidance system）	5Hz（Start the integrated navigation system）
		integrated navigation	-	100Hz
	Single-point positioning accuracy	plane	≤1.5m(RMS)
		elevation	≤3.0m (RMS)
	DGNSS accuracy	plane	≤0.3m+10ppm(RMS)
		elevation	≤0.6m+10ppm(RMS)
	RTK accuracy	plane	≤1cm+1ppm(RMS)
		elevation	≤2cm+1ppm(RMS)
	Comprehensive navigation calculation accuracy（1km or 2min）		-	2%×operating range
	Timing accuracy		≤20ns(RMS)
	Rate accuracy		≤0.05m/s(RMS)
	Cold start time		≤35s
	Warm-up time		≤5s
	Recapture time		≤1s
	RTK initialization time		≤5s(10km base line)
	RTK initialization reliability		RTCM2.X RTCM3.X NMEA-0183 user-defined protocol
	Support agreement		≤20ns(RMS)
physical property	Size		17mm×22mm×2.8mm
	weight		2g
	power supply		3.0V~3.6V DC
environmental index	humidity		95% No condensation
	operating temperature		-40℃~+85℃
	storage temperature		-55℃~+125℃
modi module interface	functional interface		3×UART、1×I2C、1×PPS、1×SPI