The 24GHz millimeter-wave radar sensor is a device that uses FMCW and CW multi-mode modulation and has a separate transmitter and receiver antenna structure. When in use, the sensor emits FMCW and CW radio waves into the sensing area. These waves are reflected by moving, micro-moving, or weakly moving targets in the area and are converted into electrical signals by the millimeter-wave MMIC circuit within the sensor system. These signals are then sent to the processor and processed using related signal and data algorithms to extract information about the targets.
The millimeter-wave radar sensor has the ability to detect the presence, stillness, and motion of humans, but its response speed is slower than that of a digital infrared motion sensor, at around 2-4 seconds. To increase both response speed and accuracy, it can be used in combination with a digital infrared motion sensor. Additionally, by incorporating light and temperature sensors, this millimeter-wave radar sensor can be used in smart home applications, such as controlling lights, air conditioners, and other household furnishings.
The sensing results of the millimeter-wave radar sensor can be output through the serial or I/O port, and the sensor module is known for its strong sensing reliability, high sensitivity, small size, and ease of use and integration.
Features
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Human presence sensing: sense if there is human body in areas.
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I/O port switch quantity input and output control
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Serial port input and output control
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Strong anti-interference ability, not to be affected by snow, haze, temperature, humidity, dust, light, noise, etc.
Bottom installation
Horizontal installation
Top installation
Resources
FAQs:
Q: What is the mmWave Human Presence Detection Sensor used for?
A: The mmWave Human Presence Detection Sensor is used for detecting human presence and motion up to 9 meters away. It’s ideal for applications like occupancy sensing, automated lighting, and security systems.
Q: What technology does the mmWave sensor use for detecting presence?
A: The sensor uses millimeter-wave radar technology, which detects motion and presence by measuring changes in the reflected radar signal from objects within its detection range.
Q: What is the maximum detection range of this sensor?
A: The mmWave Human Presence Detection Sensor has a maximum detection range of up to 9 meters, making it suitable for medium to large indoor spaces for presence detection and monitoring.
Q: How do I connect the mmWave sensor to my project?
A: The sensor connects to your project via a standard 4-pin connector. You’ll need to connect the power supply (VCC and GND) and the data output (TX) to your microcontroller or processor for integration into your system.
Q: What are the main features of the mmWave Human Presence Detection Sensor?
A: Key features include up to 9 meters detection range, high accuracy in detecting motion and presence, millimeter-wave radar technology, and a compact design suitable for various embedded applications.
