Millimeter wave Radar Sensor for Fall Detection, IR24FDA
The IR24FDA radar module is a radar detection module based on the millimeter wave Doppler radar theory, which realizes human biological motion perception and human biological perception. This module is based on the enhanced Doppler radar signal processing theory, and realizes wireless perception of the status of personnel in a specific place through the synchronous sensing technology of Doppler parameters of personnel movement and physiological parameters of personnel. It can be tested with our radar test board.(DERADAR-24G)
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This module has the following working characteristics:
1. This module limits the detection object to people (moving or stationary), and eliminates the interference of other inanimate objects in the environment;
2. This module realizes real-time monitoring and early warning of falling movements;
3. This module realizes the synchronous perception function of moving personnel and stationary personnel;
4. This module effectively eliminates the interference of non-living objects, and can also detect non-living moving objects;
5. The output power is small, which does not cause harm to the human body;
6. The module is not affected by temperature, light, dust and other environmental factors, has high sensitivity and a wide range of applications.
● Detection of stationary human body;
● 24GHz millimeter wave radar sensor;
● Based on the frequency modulated continuous wave FMCW radar technology, it realizes the two-dimensional area personnel perception function
● Realize the synchronous perception function of moving and stationary people;
● Maximum distance of motion perception: ≤13m;
● Maximum distance of slight motion perception: ≤5m;
● Maximum distance of human perception: ≤3m;
● Antenna beam width: horizontal 90°/vertical 60° Fan-shaped beam;
● The maximum distance of fall detection: 1.5 meters (radius)
● Nobody to someone: within 0.5 seconds;
● Someone to nobody: more than 1 minute.
The suggested installation method of this radar module is top installation, as shown below.
1. Motion detection
2. Slight motion detection
3. Fall detection
4. Action status evaluation
5. Early warning
Human body abnormality judgment method
1) Record the starting point of the person entering the bathroom and record the stay time;
2) If there is a rapid fall action, the radar will output an alarm signal for a suspected fall;
3) After the radar judges the fall, it will continuously output the motion sign parameter signal, if the sign signal is always low, the radar will output a signal confirming the fall.
Movement sign parameter description
Static (only breathing but no limb movement): output value: 1%-5%
Micro-action (only limb movement): output value: 5%-20%
Walk around: output value 15%-60%
Running: output value 50%-100%
* The respiration and sleeping monitor radar IR24BDA
* The sleep monitoring function requires the sleep monitoring radar IR24SMA.
* The human presence detection function requires the human presence detection radar IR24VDA
Typical application scenario 1 — Home & Hotel
Typical application scenario 2 — Office & Hospitals & Nursing homes
1. Detection Angle and Distance
2. Electrical Parameters
3. RF Performance
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