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CTLRR-540 vehicle speed sensor

77GHz 4D Radar Sensors For Vehicle ADAS systems

CTLRR-540 is a new generation of 77GHz 4D imaging millimeter-wave front radar independently developed, widely applicable to L2+ and above advanced autonomous driving and intelligent transportation systems (traffic flow monitoring and analysis, intersection safety warning) .

Applications in scenarios such as all-weather monitoring and event detection on expressways, smart industry and security (industrial automation and robots, perimeter security and intrusion detection, unmanned aerial vehicles and aviation), special vehicles and related fields (special vehicles, mining and agriculture), etc.

The product features high performance, small size, low cost and easy integration and installation.

 

  • It adopts the RFCMOS RF front-end chip AWR2243P and the processor chip AM2732.
  • Highly integrated, small-sized and lightweight 4D imaging radar;
  • The maximum detection distance for vehicles can reach 360 meters, for two-wheelers it can be 240meters, and for pedestrians it can be 170 meters.
  • The maximum detection distance for high-altitude passable targets is 200 meters.
  • The maximum tracking distance for small car targets in the tunnel is over 200 meters.
  • Point cloud count Max2048 points per frame, track target count Max256;
  • Real-time point cloud imaging, with higher point cloud density and stronger target resolution andrecognition capabilities, generates high-resolution point cloud data in four dimensions, namely three
    dimensions of space and velocity (X, Y, Z, D);
  • High-resolution and high-density point cloud information similar to that of LiDAR, with stronger robustness.

Product Function

  • Autonomous Valet Parking System (AVP)
  • Navigation-Assisted Autonomous Driving (NOA)
  • Self-Driving Cars
  • Real-time Localization and Mapping (SLAM)
  • Assist in realizing functions such as AEB, ACC, and FCW

Get Free Quote of 77GHz 4D Radar Sensors For Vehicle ADAS systems

Application

1. Application of ACCVAEB\FCW-related ADAS systems for automobiles
Large vehicles (construction machinery, forklifts, tractors, harvesters, etc.)
2. Rail vehicles
3. Autonomous driving vehicles (AGVs)
4. Special transportation vehicles (hazardous materials transport vehicles, extended trailers, etc.) cranes (RTG, RMG, STS, bridge cranes, gantry cranes)
5. Port ships
6. Drones
7. Smart transportation
8. Road-end fixed, low-speed collision avoidance warning

I mount it behind a plastic bumper. Will that affect detection?
Yes, if the bumper has metal flakes in the paint or carbon fiber. Use non-metallic paint and keep thickness between 2–4mm. See the radome material table in the datasheet.
Can it see a child standing in front of a car?
Yes. Pedestrian detection up to 170m. At close range (≥0.2m), the child will appear as a point cloud cluster with height info.
What happens in a tunnel with no GPS?
Radar works fine. It doesn’t rely on GPS. The car’s position is tracked via radar odometry relative to tunnel walls and other fixed structures.
I drive under a metal bridge. Will the radar false alarm?
It detects the bridge as an overhead structure but classifies it as “passable” (non-threat) using height data. No false braking.
Can it tell a stopped car from a parked car on the side of the road?
Yes. Doppler detects zero speed. Static objects are tracked but can be filtered based on position and lane context.
How many cars can it track at a busy intersection?
Up to 256 targets simultaneously. Enough for most urban intersections.
Will heavy rain cause false detections?
Rain causes some noise, but DDMA waveform improves SNR by 6x. You’ll see reduced point density, not false tracks.
I need to detect a motorcycle filtering between lanes. Will it see it?
Yes. Two-wheeler detection up to 240m. The radar’s 1.1° horizontal resolution separates the motorcycle from adjacent cars.

Technical Support & Custom Solution

We provide datasheet, dimension drawing, interface protocol, demo code and technical support.

Support sample test, ODM/OEM customized service, welcome global customers to inquire and cooperate.

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