HLK-LD2461 is a 24GHz millimeter wave radar product used for human perception, consisting of two 1-engine 2-receiver millimeter wave radar chips, high-performance microstrip antennas, high-performance MCU, and peripheral auxiliary circuits; The operating frequency range is 24.00GHz~24.25GHz, which is the ISM frequency band with a working bandwidth of 250MHz. This product can be used in the home, office, hotel, and other scenarios to achieve precise sensing of multiple movements, micro-movements, or stationary human bodies.
Product Parameters
- Frequency: 24G-24.25GHz
- Frequency Sweep Bandwidth: 250MHz (Complies with CE/FCC certification standards)
- Modulation Type: FMCW
- Detection Angle: Azimuth ±45° / Elevation ±25°
- Detection Range: 5m (Stationary) / 6m (Micro-motion in sitting position) / 8m (Motion) (Typ.)
- Distance Resolution: 0.75m (Typ.)
- Distance Accuracy: 0.1m (Typ.)
- Angle Accuracy: 2° (Typ.)
- Angle Resolution: 15° (Typ.)
- Maximum Equivalent Isotropic Radiated Power: 13dBm (Typ.)
- Power Supply Voltage: 5V (Typ.)
- Dimensions: 35x50mm
- Operating Temperature: -40℃~+85℃
- Data Format: Serial ASCII output
- Package Type: Default 1.5mmx4-pin female connector (customizable)
Main Functions and Performance
A. Motion detection
a) Motion perception distance: ≤ 8 meters (normal range of motion);
b) Motion trigger time: ≤ 0.5s;
c) Accuracy: ≥ 99%;
B. Human presence detection (respiratory detection)
a) Perceived distance of stationary human body: ≤ 6 meters (for stationary human body);
b) Unmanned detection maintenance time: 15 seconds;
c) Accuracy: ≥ 95%;
C. Population statistics
a) Detection distance: ≤ 6 meters;
b) Number of detections: ≤ 5 people;
c) Accuracy: ≥ 90% (3 people), ≥ 80% (5 people);
D. Direction detection
a) Identify the entry and exit, left and right, front and back directions of the human body;
b) Detection distance: ≤ 6 meters;
c) Accuracy: ≥ 95%;
E. Trajectory detection
a) Identify the movement route of the human body within the detection area, making it easy to determine the position and direction of human movement;
b) Support multi person trajectory, achieving a maximum of 5 people to maintain the trajectory;
c) Detection distance: ≤ 6 meters;
Accuracy: ≥ 90%;