Product Description

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 home, office, hotel and other scenarios to achieve precise sensing of multiple movements, micro movements, or stationary human bodies.

Product parameters

(1) Detection angle and distance

(2) RF performance

(3) Electrical porformance

Module size and pin description

                                                                                                         Figure 1 Schematic diagram of HLK-LD2461

                                                           Figure 2 Schematic diagram of the connection between the radar module and peripherals

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%;