



JIYI Terrain Radar Sensor - 24GHz Millimeter-Wave Ground Tracking Radar Module for Agricultural Spraying Drones
Ensure perfect altitude management with the high-precision JIYI Terrain Radar Sensor. Custom-engineered by JIYI Robotics for advanced agricultural aircraft, this 24GHz millimeter-wave radar delivers real-time terrain-following telemetry. It dynamically measures the exact distance to the crop canopy, allowing your JIYI flight controller (K3A Pro, K++ V2, K++ Pro) to adjust the drone's altitude automatically over uneven hills, terraces, and slopes. Protected by an IP67 waterproof housing, it prevents chemical under-dosage and guarantees precise spraying height efficiency across every farming acre.
The JIYI Terrain Radar Sensor acts as the primary altitude safeguard for precision farming, protecting your multirotor investment from accidental ground collisions while maintaining a constant spray pattern.
Advanced 24GHz Millimeter-Wave Telemetry :
Operating on a high-frequency 24GHz radar band, this module bounces millimeter-wave signals down to the field surface at microsecond intervals. Unlike traditional optical or ultrasonic sensors that fail due to blowing dust, harsh sunlight, or morning mist, this sensor cuts cleanly through atmospheric interference to give you uncompromised ground-tracking reliability.
Automated Intelligent Terrain Following :
When linked directly into the JIYI autopilot ecosystem, the radar actively maps the contours of the ground below. As your drone transitions from a flat field up a steep hillside or over tall orchard trees, the flight system instantly alters motor RPMs to match the ascending or descending landscape, keeping the spray nozzles at their optimal crop-protection distance.
Rugged IP67 Environment Protection :
Agricultural spraying drones operate in harsh environments filled with concentrated chemical mist, mud splatter, and heavy moisture. JIYI builds this radar module inside an ultra-tough, sealed thermal polymer shell with an official IP67 ingress rating, meaning it can be hosed down after operations without risk of short-circuiting internal circuits.
Plug-and-Play Bus Integration :
Forget about custom soldering schemes or deep software programming loops. Equipped with a standardized data cable assembly, this terrain-following block attaches directly to your JIYI flight controller's dedicated radar ports, populating instantaneous reading profiles right inside your ground control station assistant dashboard.
Specification :
Brand: JIYI Robotics
Product Name: JIYI Terrain Radar Sensor
Radar Frequency Band: 24GHz Millimeter-Wave (mmWave)
Detection Distance Range: 0.5 Meters to 20 Meters (Above crop canopy)
Measurement Accuracy Resolution: +/- 0.05 Meters
Supply Operating Voltage: 5V to 12V DC Input
Power Consumption Load: Less than 1.5W
Ingress Protection Certification: IP67 Dustproof and Waterproof Sealed
Data Output Interface: CAN Bus / Serial Communication Port
Compatibility Link: JIYI K3A Pro, K++ V2, K++ Pro Autopilots
Physical Module Dimensions: 75mm x 70mm x 25mm
Net Hardware Weight: 78g (Excluding cable extension harness)
Frequently Asked Questions :
Q1: What is the main operational advantage of a 24GHz terrain radar over a laser lidar sensor?
Ans: Laser sensors can easily be blinded by reflective water droplets, high crop density, dense dust, and direct ambient sunlight. A 24GHz millimeter-wave radar relies on microwave reflections, allowing it to accurately detect the real soil or dense canopy surface through any dense dust, mist, or leaves.
Q2: How far above the ground can this JIYI radar tracking module safely operate?
Ans: The sensor accurately reads terrain profiles from a low clearance of 0.5 meters all the way up to 20 meters in height, providing plenty of reaction time for your drone to adapt when flying at standard commercial field speeds (4m/s to 8m/s).
Q3: Can I run both a terrain radar and an obstacle avoidance radar on the same JIYI controller?
Ans: Yes, absolutely. You can integrate both modules onto your airframe simultaneously by connecting them through a JIYI CAN HUB module. This dual setup allows your flight controller to receive front-facing collision alerts and downward terrain-following data at the same time.
Q4: How should I position the radar sensor onto my agricultural drone frame?
Ans: Mount the sensor directly on the underside of your drone's electronics deck or lower frame rails, pointing completely vertical (downward facing). Make sure the radar's clean face is not blocked by carbon tubes, landing gear brackets, or hanging liquid delivery hoses.




