Enhance Positioning Accuracy with WTRTK-4G RTK Sensor for Precise Measurements-Miceyun (Shenzhen) Intelligent Technology Co., Ltd.

WTRTK-4G Differential positioning module

The WTRTK-4G is an advanced RTK sensor that combines real-time dynamic positioning technology with high-precision inclination detection, providing users with precise and stable measurement solutions. Whether in civil engineering, construction surveys, or geospatial data acquisition, the WTRTK-4G meets your demands for accurate measurements.

Description

Overview

A centimeter-level positioning sensor suitable for high-precision automotive positioning, high-precision mapping, drone positioning, and more;

The internal positioning module uses the U-blox high-precision multi-frequency GNSS positioning module, achieving centimeter-level accuracy in seconds by receiving GPS, GLONASS, Galileo, and BeiDou navigation signals simultaneously, providing stable and precise positioning information;

Data transmission uses widespread 4G transmission for high-speed and stable signal transmission, ensuring data stability;

WTRTK-4GB

WTRTK-4GB is a fixed base station that provides the differential positioning data required for WTRTK-4GR and WTRTK-4GA. The fixed base station needs to be initially connected to the WIT server for high-precision positioning, then stabilized in its current location to provide the necessary differential positioning data for mobile stations and directional mobile stations;

WTRTK-4GA

Building upon WTRTK-4GR, WTRTK-4GA adds another multi-frequency GNSS positioning module to address the issue of needing a certain ground speed to attain heading angles while using GPS, with the ability to determine the orientation angles between two antennas;

WTRTK-4GA also integrates high-precision IMU sensors to fuse IMU data when GPS signals are lost, ensuring stable angle information continuity. The IMU can also provide stable attitude angle information, displaying the current sensor‘s three-axis attitude angles;

WTRTK-4GR

WTRTK-4GR can connect to 4G networks for high-precision centimeter-level positioning, compatible for use with WRTK-4GB. By utilizing the base station data from WTRTK-4GB for differential positioning, users can achieve centimeter-level precision positioning and view real-time location information on WeChat or a computer via the WIT server;

Additionally, WTRTK-4GR is compatible with Qianxun services, enabling nationwide centimeter-level positioning by entering a Qianxun account directly. While connected to the Qianxun server, real-time data transmission to the cloud is not available;

Internally, WTRTK-4GR integrates high-precision IMU sensors for GPS fusion to calculate heading angles. In the event of GPS signal loss, stable heading angle information is provided. The IMU also offers stable attitude angle information, displaying the current sensor‘s three-axis attitude angles.

Specifications

Parameter	Illustrate
Chip characteristics	Chip	ZED-F9P RTK GNSS模块
	Frequency	GPS L1/L2, GLONASS G1/G2, BDS B1/B2, GALILEO EI/E5b, QZSS LI/L2
	Operating mode	GPS+GLONASS+BDS+GALILEO+QZSS positioning
	Aisle	184 search channels
Sensitivity	Track	-167dBm
	Heavy arrest	-160dBm
	Cold start	-148dBm
	Hot Start	-157dBm
Accuracy	RTK horizontal accuracy	RTK 0.01 m+ 1 ppm CEP
	RTK vertical accuracy	RTK 0.01 m+1 ppm CEP
	Single point positioning vertical accuracy	1.5m CEP
	Single point positioning vertical accuracy	1.5m CEP
	Speed accuracy	0.05m/s
	Heading angle accuracy	0.4 deg，When the antenna baseline length is 1 meter
	Dynamic heading angle accuracy	0.3 deg
	1PPS time accuracy	RMS 30ns
	1PPS time accuracy	99% 60ns
Start Time	Cold start	24s
	Hot Start	2s
	Recapture	2s
Convergence time	Convergence time	≤10s
Output Data	Baud rate	230400bps
	Output level	TTL level
	Output protocol	NMEA
	NMEA statement	RMC,VTG,GGA,GSA,GSV,GLL
	update frequency	5Hz
Work restrictions	high	≤50,000m
	speed	≤500m/s
	acceleration due to gravity	<4g
Power consumption	Voltage	DC5V-36.0V，typical:12.0V
current	WTRTK-4GA	12.0V: <150mA
	WTRTK-4GB	12.0V: <100mA

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