Aimed at the flight environment of plant protection UAVs, RKTPL offers a millimeter wave radar solution for terrain awareness in unmanned aerial vehicle (“1 +2” solution). It adopts one altimeter radar sensor and two radar sensors for obstacle avoidance, with the advantages of high integration, anti-interference, good stability, long distance measurement, accurate height measurement, small size, light weight, easy to install and all day and all weather work.

Performance characteristics for “1+2” solution

Electrical performance for “1+2” solutions
Operating voltage 5~30V DC
Power consumption 6W@12V DC
Update rate ≤50Hz
Operating temperature -40~85℃
Storage temperature -60~125℃
Detection performance
Forward/backward side Altimeter
Detected range 20m 30m
Range accuracy 0.1m 0.02m
On the horizontal 56°(-6dB) 28°(-6dB)
Numbers of detected  targets simultaneously 5 Single target


System composition

System block diagram is as shown above. The data fusion module utilizes SPI interface to read forward and backward detection radar SP25T and the altimeter NRA24 and realizes the data fusion, and then through the UART, CAN interface to transmit the data to the UAV flight control system. Also users can directly connect SP25T and NRA24 radar for data collection and integration.

“1 + 2” solution adopts 1 NRA24 mmw radar sensor and 2 SP25T mmw radar sensors . Based on this solution, UAV customers can quickly build their own flight platform, and design different UAV-aware system suitable for their application scenarios.

Installation

Millimeter wave terrain awareness radar in UAVs adopts standard modular for the distributed installation, which is easy to assemble around the body of the UAV. The installation diagram is as shown below.

SP25T specifications

PARAMETERS CONDITIONS MIN TYP MAX UNITS
System charecteristics
Transmit frequency 24.00 24.20 GHz
Output power(EIRP) Adjustable 20 dBm
Modulation type FMCW
Update rate 30 Hz
Power consumption @5V DC 25℃ 1.20 1.32 1.45 W
Distance and velocity measurement performance
Distance-measurement range @0 dBsm 0.1 40 m
Speed-measurement range -70 70 m/s
Distance-measurement accuracy ±0.1 m
Speed-measurement accuracy ±1.2 m/s
Detected  targets simultaneously
Numbers of detected  targets simultaneously 5 pcs
Range resolution 0.75 m
Speed resolution 2.4 m/s
Antenna performence
Beam width azimuth(-6dB) 56 deg
elevation(-6dB) 37 deg
Side level azimuth -22 dB
elevation -16 dB
 Other characteristics
Supply voltage 5 12 32 V
Supply current @12V/25℃ 100 110 120 mA
Storage temperature -60 125
Operating temperature -40 85
Weight 9 g

NRA24 specifications

PARAMETERS CONDITIONS MIN TYP MAX UNITS
System charecteristics
Transmit frequency 24.00 24.20 GHz
Output power(EIRP) Adjustable 13 24 dBm
Modulation type FMCW
Update rate 50 Hz
Power consumption @5V DC 25℃ 1.4 1.5 1.8 W
Distance measurement performance
Distance-measurement range @0 dBsm 0.1 50 m
Distance-measurement accuracy ±0.02 m
Detected  targets performance
Numbers of detected  targets simultaneously 1 pcs
Range resolution 0.75 m
Antenna performence
Beam width/TX azimuth(-6dB) 28 deg
elevation(-6dB) 18 deg
Beam width/RX azimuth(-6dB) 27 deg
elevation(-6dB) 17 deg
Other characteristics
Supply voltage 4 5 6 V DC
Supply current @5V/25℃ 300 300 330 mA
Storage temperature -60 125
Operating temperature -40 85
Weight  Including shell 95 g
Outline dimensions  Including shell 130x70x14.5 (LxWxH) mm

For Further Information

Please Contact Us for more information.