Related Manuals for BW SENSING BMR3000 Series
Summary of Contents for BW SENSING BMR3000 Series
- Page 1 BMR3000 Serials Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Technical Manual...
- Page 2 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Introduction The BMR3000 high-accuracy electronic compass is composed of an industrial-grade single-chip microcomputer with high reliability and anti-interference ability, and a high-accuracy magnetic sensor and driver chip. At the same time, it integrates the hard magnetic and soft magnetic calibration algorithms of Bewis sensing patented technology, and compensates the tilt angle with a three-axis accelerometer, which can provide accurate heading data in extremely harsh environments.
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Page 3: Specifications
BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Specifications Electrical Specifications Power supply 9-35V DC Operating current 30mA（Max40mA） Operating temperature -40~85℃ Store temperature -55~100℃ Performance Specifications 0.2 RMS（Horizontal use） Heading accuracy ＜0.5 RMS（Pitch<30°） Compass heading parameter 0.01° Resolution 0.05° Repeatability Pitch accuracy 0.1°... - Page 4 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Resolution: The measured minimum change value that the sensor can detect and resolve within the measurement range. Accuracy: The error between the actual angle and the Root mean square(RMS) of the measured angle of the sensor (≥16 times).
- Page 5 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Measurement & Installation The main sensitive components of the BMR3000 sensor are magnetometers and accelerometers. The compass uses a magnetometer to sense the geomagnetic field to calculate the direction of the sensor.
- Page 6 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Method 2 - Multi-face calibration: 1.Fix the electronic compass in the use environment, and try not to carry magnetic items such as keys and mobile phones during calibration; 2.Connect the product to the system and put it in a horizontal state(within ±5°); 3.Open the serial debugging assistant and send the start calibration command in hexadecimal format: 77 04 00 08 0C, return value 77 05 00 88 00 8D;...
- Page 7 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Electrical connections s Electrical interfaces BLUE BLACK GREEN YELLOW Cable color & function （A、D+） （B、D-） DC 9-35V DC 9-35V RED VCC 485A/485+ YELLOW Signal Electronic acquisition 485B/485- compass GREEN Sensor BLACK GND RS 485 wiring diagram DC 9-35V RED VCC...
- Page 8 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Protocol 1Data Frame Format： （8 data bits，1 stop bit，No parity check，default baud rate 9600） Data Command Checksum Identifier Frame Length Address Code （1byte） （1byte） （1byte （1byte） （1byte） （Xbyte） 0x77 Data Format: Hexadecimal Identifier: Fixed to 77 Frame Length: Length from Frame Length to Checksum（included）...
- Page 9 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass 2.3 Read Heading azimuth angle Command： 77 04 00 03 07 Identifier Command Frame Length Data Address Code Checksum （1byte （1byte） （0byte） （1byte） （1byte） （1byte） 0x77 0x03 0x04 Command response： Identifier Data Frame Length Address Code...
- Page 10 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass 2.5 Set the magnetic declination Command： 77 06 00 06 02 08 16 Command Identifier Frame Length Data Address Code Checksum （1byte） （1byte （1byte） （2byte） （1byte） （1byte） 0x77 0x06 0x06 0x06 SXXX.YY Note: S indicates a symbol, 0 is positive 1 is negative, XX is a two-digit integer, and Y is 1 decimal.
- Page 11 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass 2.8 Set address Command: 77 05 00 0F 01 15 Frame Length Identifier Command Address Code Data Checksum （1byte） （1byte （1byte） （1byte） （1byte） （1byte） 0x77 0x05 0x0F XX Address Command response： Address Code Command Identifier...
- Page 12 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Command response： Identifier Data Frame Length Address Code Command Checksum （1byte （1byte） （1byte） （1byte） （1byte） （1byte） 0x00: success 0x77 0x8C 0x05 0xFF: failure Note: 5Hz Data Rate means that 5 sets of angle data are automatically output every second, and so on. When the product with the half-duplex RS485 interface is set to automatically outputs data to the outside, it may not be able to receive the input command effectively.
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Page 13: Ordering Information
BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Ordering Information Product number Way of communication Package condition IP67Package/Aviation joint BMR3000-232 R 232 IP67Package/Aviation joint BMR3000-485 RS485 IP67Package/Aviation joint BMR3000-TTL Executive standard ● Enterprise Quality System Standard: ISO9001:2008 Standard (Certificate No.:10114Q16846ROS) ●... - Page 14 BMR3000 Three-Axis Accelerometer Three-Axis Magnetometer High Accuracy Electronic Compass Wuxi Bewis Sensing Technology LLC Address: Building 30, No. 58 Xiuxi Road, Binhu District, Wuxi City Hotline: 400-618-0510 Tel: +86 510 85737178-801 Email: sales@bwsensing.com Website: www.bwsensing.com...