Related Manuals for Ainstein LR-D1
Summary of Contents for Ainstein LR-D1
- Page 1 1421 Research Park Dr Lawrence, KS 66049 Long Range Radar Altimeter LR-D1 User Manual D00.01.08 2/20/2023 Proprietary information Page 1...
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Page 2: Revision History
1421 Research Park Dr Lawrence, KS 66049 Revision History Version Number Date Authors Notes D00.00.01 Sep 13, 2018 Hao Liu, Initial Draft Liqiang Ren, Zhenyu Hu D00.00.03 Oct 17, 2018 Zhenyu Hu Add section 7 - Known Issues D00.01.01 Nov 5, 2018 Andrew Technical Revision Megaris... - Page 3 1421 Research Park Dr Lawrence, KS 66049 Copyright 2019 © Ainstein AI, Inc. All rights reserved. No part of this work may be reproduced, published, or distributed in any form or by any means (electronically, mechanically, photocopying, recording, or otherwise), or stored in a database retrieval system, without the prior written permission of Ainstein AI, Inc.
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Page 4: Table Of Contents
2.1. Mounting Angle 2.2 Mounting to an Aircraft 2.3. Line of Sight Clearance 2.4. Integration Requirements 3. Operational Requirements 3.1 Obstruction to the LR-D1 Field of View 3.2 Excessive Pitch/Roll 3.3 Terrain 3.4 Power Source 3.5 Orientation of LR-D1 3.6 Minimum and Maximum Operating Altitude 4. - Page 5 1421 Research Park Dr Lawrence, KS 66049 Remote Firmware Update 13. LR-D1 Altimeter Test Tool GUI : Operating the Test Tool GUI 14. Contact Us: Appendix 1: Malfunction Alert Information List Proprietary information Page 5...
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Page 6: Product Description
(altitude) is derived by the difference in time from when the signal is sent from the sensor to when the signal is received by the sensor. The LR-D1 is enclosed in a black metallic case, the radome, which is conducive to radar telemetry. -
Page 7: Mounting To An Aircraft
Additionally, keep any unexpected objects out of the radar’s FoV (Field of View). Obstructions to the LR-D1’s field of view will cause a decrease in the performance of the radar. It is highly recommended that the LR-D1 be mounted on the underside of the aircraft far away from the landing gear, other aircraft structures, or other equipment. - Page 8 A filtering algorithm should be used to estimate vehicle position, velocity and angular orientation based on rate gyroscopes, accelerometer, compass, GPS, airspeed and barometric pressure measurements in addition to the recorded LR-D1 measurements. Sensor redundancy is heavily advised for the LR-D1.
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Page 9: Operational Requirements
3.3 Terrain Terrain with poor reflectivity may cause the performance of the LR-D1 to worsen. Flying at the limit of the LR-D1’s range over dry, loose soil, such as tilled farmland, or sand is not recommended. Terrain with high reflectivity may cause the LR-D1 to output abnormally high values at low altitudes due to high saturation. -
Page 10: Minimum And Maximum Operating Altitude
Lawrence, KS 66049 3.6 Minimum and Maximum Operating Altitude Operating the LR-D1 at altitudes below 0.7 meters and above 500 meters will result in a degradation of performance and potentially erroneous measurements. Also, any reading at the altitude of greater than 655.35m would be considered as the error or overflowed reading (see... - Page 11 When actual altitude is greater than 500m at some solid terrain, for example concrete, the radar can operate normally till 600m. LR-D1 will report SNR = 0 and Altitude = 1.46m to indicate there is no target detected; Therefore, SNR = 0 can be considered as this detection is invalid.
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Page 12: Uart Data Protocol For Lr-D1
1421 Research Park Dr Lawrence, KS 66049 5. UART Data Protocol For LR-D1: ● Protocol: UART ● I/O Standard: RS-232 (Default) and RS-422 (Per Request) ● Baud Rate: 115200 b/s ● Data length: 8 bits, plus one start bit and one stop bit, and no parity bit Table 2: Data Packet Definition... - Page 13 4. Only support single target detection in the released version. When altitude reading is overflowed, please see the Appendix 1 for details. We use a 16-bit integer to indicate the LR-D1’s altitude reading in centimeters, therefore the maximum valid altitude would be 65535 cm (655.35 m). If actual altitude is greater than that, altitude reading overflow would occur.
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Page 14: Mechanical Drawing
1421 Research Park Dr Lawrence, KS 66049 6. Mechanical Drawing: Figure 3: Dimensions of LR-D1 (Units: mm) Proprietary information Page 14... -
Page 15: Radiated Emissions
1421 Research Park Dr Lawrence, KS 66049 7. Radiated Emissions Maximum Transmit Power (EIRP) 32 dBm Proprietary information Page 15... -
Page 16: Hardware Interface
Green RS-422 R- RS422: RX- Leave unwired for RS232 Black Ground Black Ground Note: LR-D1's default hardware interface is RS-232. If the RS-422 interface is required, please contact Ainstein for assistance. Figure 4: LR-D1 Pinout Diagram Proprietary information Page 16... -
Page 17: Cabling Diagram
1421 Research Park Dr Lawrence, KS 66049 9. Cabling Diagram: The LR-D1 includes a 6 wire cable attached to a 90° connector. See Figure 4 BINDER 99-0425-75-08 Figure 4: 6 wire cable with 90° connector Figure 5: 90° Connector Diagram... -
Page 18: Known Issues
1421 Research Park Dr Lawrence, KS 66049 10. Known Issues LR-D1 is a product still in development. Table 4 lists the known issues that will be addressed in later revisions. Table 4: LR-D1 Known Issues Issue ID Description Notes ● For full confidence, If the radar is mounted within its minimum detection range (1.0 meters) to the ground, the... -
Page 19: Firmware Change Log
1421 Research Park Dr Lawrence, KS 66049 11. Firmware Change Log: Table 5: LR-D1 Firmware Change Log Firmware Release Date Notes Version ● Increase accuracy to 0.36m from .74m 3.0.7 10/14/2021 ● Increase stability of altitude measurements ● Add malfunction alert for IF saturation and altitude overflow... -
Page 20: Firmware Update Instructions
4. Click Browse and select the desired .bin file. (the bin file will be entitled “fpga_232.bin” for RS-232 and “fpga_422.bin” for RS-422. 5. Click Load to update the firmware on the LR-D1. 6. Upon successful completion of the firmware update, the device will automatically restart. - Page 21 LR-D1 measurements in real-time. 9. Click the red “Stop” button to stop recording data. 10. To retrieve data files from the LR-D1, go the the “DATA” folder in the folder containing the “Ainstein Drone Product GUI Tool Beta V0.4.1” Application.
- Page 22 0x02 Voltage alert Error in device Stop use and checking 0x40 IF signal saturation Reflection It occurs when LR-D1 is alert signal received within 1m to the ground. by LR-D1 is Check if there is any other overloaded target within LR-D1’s FoV...
- Page 23 1421 Research Park Dr Lawrence, KS 66049 integer of 16-bit (655.35 meter) Proprietary information Page 23...
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