US-D1 UAV Radar Small. Easy Setup. Highly Customizable. Safety from numbers

ADDRESS: 2029 Becker Drive, Lawrence, KS 66047 USA EMAIL: [email protected] PHONE: 785-856-0460

instein’s UAV Standard Radar Altimeter US-D1 is still the most compact radar altimeter for UAVs on the market today. So small it fits in the palm of your hands, you'll have greater flexibility with precious onboard real estate and payload. The Standard Radar Altimeter US-D1 is designed to work in a multitude of environments from mountainous terrain to tree canopies, sand and water. Do you fly over lakes or the ocean? It’s normal for your UAV’s components to get wet from choppy water, or simply from rain or fog. Worried about your expensive UAV electronics getting coated in mist from agricultural...

Built for Tough Environments WATER PROOF Meets the highest Ingress Protection rating requirements IP67 for water 
 DUST PROOF Meets the highest Ingress Protection rating requirements IP67 for dust 
 ROBUST AT HIGH SPEEDS/ TURBULENCE Single board electronics design leaves no room for failure 
 COMPACT SIZE 
 Fits in the palm of your hands, Ainstein UAV Standard Radar Altimeter US-D1 is small and light enough even for your small camera drones EASY TO USE 
 Plug-and-Play and CAN/UART firmwar

Technical Data Table 1: Specifications Frequency Band Minimum Operating Altitude Maximum Operating Altitude Altitude Precision Update Rate Supply Voltage Power Consumption Operational Temperature Range Environmental Conditions

All specs above are measured under the environment of 35 °C temperature, standard atmospheric pressure and humidity, without any Electromagnetic Interference (EMI). Operational Temperature Range indicates radar works properly in this range. If operating temperature goes beyond this range, radar might not be accurate and can suffer mechanical damage. Radar unit can be shipped with either CAN or UART for it’s output data protocol. * Operational Temperature Range is based off of the hardware’s subcomponent specifications. Actual operational testing is st

UART Data Protocol Specifications ● ● ● ● ● Baud Rate: 115200 b/s Data bit: 8 Parity bit: N Stop bit: 1 Voltage Level: 3.3V A single data packet consists of six(6) bytes. Table 2 defines the packet structure. Table 2: UART Data Packet Definition From Packet Head Altitude (Least Significant 8 Bits) Altitude (Most Significant 8 Bits) Checksum (see formula below) Notes: • '*' refers to a variable bit containing dynamic data. • This table ONLY describe the data format of standard firmware version. Please contact Ainstein AI for data formats of any customized firmware versions or customized firmware. requirement....

CAN Data Protocol Specifications ● ● ● Baud Rate: 1 Mb/s Frame ID: customized (Standard Frame, Extended Frame) Standard: CAN Protocol 2.0 section A and B, ISO 11898-1:2015,-4 A single data packet uses four bytes of either, a Standard or Extended CAN frame. The type of CAN frame used and CAN ID of the device can be customized. The CAN frame is defined in table 3. Table 3: CAN Frame Data Packet Definition From Extended ID frame (Default 0x00090002) Altitude (Most Significant 8 Bits) Altitude (Least Significant 8 Bits) SNR(Most Significant 8 Bits) SNR(Least Significant 8 Bits)

Mechanical Drawing Figure 1: Dimensions of US-D1 (Units: mm) Figure 2: Field of View Orientation

Hardware Interface Table 4: Data Packet Definition Wire Color Figure 3: US-D1 Cabling Interface

Installation Instructions Mounting Requirements: Radar face should be perpendicular to the target to be measured Keep radar face clean, and do not cover it. Keep any unexpected objects out of radar’s FoV (Field of View), otherwise it might situate radar’s signal No specific requirement for mounting orientation Figure 3: Proper Mounting Example Ensure altimeter will not be obstructed by mechanical landing ge

Known Issues Table 5 lists the known issues that will be addressed in future revisions. Table 5: US-D1 Known Issues Issue ID If US-D1 is used outside of its Maximum O p e r a t i o n a l A l t i t u d e ( Ta b l e 1 ) . Inconsistent small readings will be output(See Figure 4 below). ● For full confidence, only consider US-D1’s data when used within its operating range Altitude data from US-D1 may have various step-size, since some postprocessing algorithm is implemented after radar processing, e.g. averaging, filtering. Altitude data from US-D1 may give unexpected or incorrect measurements under...

The CAN Bus that CAN HI and CAN LOW are connected to must be between -2V and 5V power supply or it is at risk of burning the hardware. ● Under no circumstances will Ainstein be held responsible or liable in any way for any claims, damages, losses, expenses, costs or liabilities whatsoever from your use of the US-D1 outside the range a -2V and 5V power supply Figure 5: US-D1 Altitude Drop-off Example

Hardware & Firmware Version Firmware

About Ainstein Our mission is to enable safer driving, flying, working and living through radarbased technology. We are in the business of improving safety and protecting valuable assets through innovations in radar technology. Ainstein makes radar systems smarter, more affordable and easier to deploy. We offer complete solutions for autonomous drones, advanced driver-assistance systems (ADAS), autonomous vehicles and industrial sensing – incorporating a combination of millimeter wave (mmWave) radar, sensor fusion and artificial intelligence (AI). For years, cost, weight and performance constraints...