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Drone flight safety depends on two key abilities: detecting obstacles early and maintaining accurate altitude. For professional UAVs used in agriculture, inspection, mapping, logistics, and industrial monitoring, reliable sensing is no longer optional — it is essential.
ZLY Technology provides a practical millimeter-wave radar solution by combining the ZLYMR220 UAV obstacle avoidance radar with the ZLY-LDRA100 UAV altimeter radar. Together, they help drones improve forward and rear obstacle detection, low-altitude flight stability, and all-weather navigation performance.
260m Obstacle Detection for Early Warning
The ZLYMR220 is designed for UAV obstacle avoidance and long-range object detection. With a maximum detection range of up to 260 meters, it gives the drone more time to identify potential risks before they become safety problems.
This is especially important for industrial UAVs flying near trees, poles, buildings, powerlines, towers, or other unexpected objects. The radar can detect both stationary and moving targets and output distance, speed, and angle information, helping the UAV system make better flight decisions.
Key advantages of ZLYMR220 include:
- Up to 260m obstacle detection range
- Simultaneous tracking of up to 40 targets
- Detection of stationary and moving objects
- Distance, speed, and angle output
- Compact 62 × 62 × 20 mm design
- CAN communication interface
- IP67 protection for outdoor UAV applications
For customers searching for a drone collision avoidance sensor, UAV obstacle detection radar, long-range drone radar sensor, or millimeter-wave radar for autonomous drones, ZLYMR220 offers a strong and reliable option.
100m Altitude Measurement for Stable Low-Altitude Flight
While obstacle detection protects the UAV from objects around it, altitude measurement helps the drone understand its distance from the ground. The ZLY-LDRA100 is a 24GHz UAV altimeter radar designed for height measurement from 0.2m to 100m, with ±0.1m ranging accuracy.
This makes it suitable for low-altitude UAV flight, terrain-following drones, agricultural spraying drones, inspection UAVs, and unmanned aerial platforms that require stable height control.
Unlike some sensors that may be affected by light, dust, fog, or spraying mist, the LDRA100 radar is designed for harsh environments such as rain, snow, fog, and dust. Its compact size, low power consumption, and easy integration make it suitable for UAV/UAS platforms, helicopters, and small airships.
Key advantages of ZLY-LDRA100 include:
- 0.2m to 100m altitude measurement range
- ±0.1m ranging accuracy
- 24GHz-ISM frequency band
- Strong anti-interference capability
- Suitable for rain, fog, snow, dust, and outdoor environments
- Low power consumption at 12V DC
- Compact and lightweight design
For users looking for a UAV altimeter radar, drone height measurement sensor, radar altimeter for drones, UAV terrain following radar, or low-altitude drone safety sensor, LDRA100 provides a dependable solution.
Application Example: UAV Safety in Powerline Inspection
Powerline inspection is one of the most demanding UAV applications. During inspection flights, drones often need to operate near transmission towers, power cables, poles, trees, and uneven terrain. In these environments, early obstacle detection and stable altitude measurement are critical for flight safety.
For a powerline inspection UAV, the ZLYMR220 obstacle avoidance radar can help detect potential obstacles at a longer distance, giving the flight control system more time to respond. Its 260m detection capability is useful when the drone approaches towers, crossing cables, or unexpected objects along the inspection route.
At the same time, the ZLY-LDRA100 altimeter radar can be mounted under the UAV body to measure the distance between the drone and the ground. With a 0.2m to 100m measuring range and ±0.1m accuracy, it supports more stable altitude control when the drone flies over hills, valleys, slopes, or complex outdoor terrain.
By combining long-range obstacle avoidance radar with downward altitude measurement radar, the UAV can improve flight safety, reduce collision risk, and maintain more reliable navigation during powerline inspection missions.
Why Combine Obstacle Avoidance Radar and Altimeter Radar?
A single sensor cannot solve every UAV safety challenge. Obstacle avoidance radar helps the drone “see” objects around it, while altimeter radar helps the drone “understand” ground distance.
Together, ZLYMR220 and ZLY-LDRA100 create a more complete UAV radar sensing solution for:
- Agricultural drones
- Industrial UAVs
- Powerline inspection drones
- Mapping and surveying UAVs
- Low-altitude autonomous drones
- Outdoor UAV navigation systems
- Harsh-environment drone applications
Conclusion
For professional UAV applications, safer flight requires accurate obstacle detection and stable altitude measurement. With 260m obstacle detection from ZLYMR220 and 100m altitude measurement from ZLY-LDRA100, ZLY Technology provides a compact, reliable, and easy-to-integrate radar solution for safer drone navigation.
If you are developing a UAV platform and need a millimeter-wave radar solution for obstacle avoidance, altitude measurement, or all-weather drone sensing, ZLY Technology can support your project with professional radar products and integration advice.
