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Gravity mmWave C4001 24GHz Human Presence Detection 12m, 2 image

Gravity mmWave C4001 24GHz Human Presence Detection 12m

Κωδικός:

25-00016966

Part Number: SEN0610

ΚατασκευαστήςDFRobot Part NumberSEN0610

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The C4001 millimeter-wave presence sensor, operating at a wavelength signal of 24GHz, boasts a horizontal detection range of 100°, a presence detection range of 8 meters and a motion detection and ranging range of 12 meters. It utilizes the Gravity interface (PH2.0) and supports I2C and UART communication methods, compatible with Arduino, Raspberry Pi, ESP32 / ESP8266 development boards.

What is a millimeter-wave radar sensor?

Millimeter-wave radar technology is a non-contact sensing technology used to detect objects and provide information about their distance, velocity, and angle (in the case of humans, for example). The signals emitted by millimeter-wave sensors fall within the high-frequency spectrum with wavelengths between 24GHz and 300GHz, also known as the millimeter (mm) range.

Applications

Human Detection
Distance and Velocity Detection
Environmental Monitoring
Industrial Automation
Real-time Monitoring and Tracking

Human detection

Compared to other types of human presence sensors, such as infrared sensors, the C4001 (12m) millimeter wave presence sensor has the advantage of detecting both static and moving objects. It also has a relatively strong anti-interference ability, making it less susceptible to factors such as temperature changes, variations in ambient light, and environmental noise. Whether a person is sitting, sleeping, or moving, the sensor can quickly and sensitively detect their presence.

Distance and velocity detection

The C4001 (12m) millimeter wave presence sensor utilizes FMCW modulation for distance and speed measurement. It has a maximum detection range of 12 meters and a speed measurement range of 0.1 to 10 meters per second. FMCW (Frequency Modulated Continuous Wave) is a type of radar system based on frequency modulation of continuous wave signals. Unlike traditional pulse radar, FMCW radar continuously emits a series of continuous wave signals with gradually changing frequencies while simultaneously receiving the reflected signals. By analyzing the received signals, measurements of parameters such as distance, speed, and angle can be achieved.

Compared to traditional pulse radar technology, FMCW radar can continuously measure the distance of an object. By utilizing the Doppler effect, it can also obtain information about the velocity of the target object. This makes FMCW radar suitable for applications that require tracking the movement of objects. Additionally, FMCW radar can achieve continuous frequency scanning, providing higher measurement resolution. Since it does not require waiting for the return of echo signals, FMCW radar is suitable for applications that require real-time monitoring and tracking of target objects.

	Millimeter-wave Presence Sensor	Infrared Sensor
Sensing Principle	TOF radar principle + Doppler radar sensing principle (active detection)	Pyroelectric infrared sensing principle (passive radiation)
Motion Sensitivity	Can detect presence, slight movement, and motion of human body	Can only detect motion and close-range slight movement of human body
Sensing Range	Can be adjusted to different sensing distances	Sensing range cannot be adjusted
Environmental Temperature Impact	Not affected by environmental temperature	Sensitivity decreases when temperature is close to human body temperature
Application Environment	Not affected by heat sources, light sources, air flow	Susceptible to heat sources and air flow
Penetration Ability	Can penetrate fabrics, plastics, glass, and other insulating materials	Can only penetrate some transparent plastics
Distance Measurement Support	Yes	No

Technical data

Operating Voltage: 3.3V/5V
Maximum Detection Range: 12m
Beam Angle: 100°×80°
Modulation Mode: FMCW
Operating Frequency: 24GHz
Operating Temperature: -40℃~85℃
Baud Rate: 9600
I2C Address: 0x2A/0x2B
Size: 22×30mm

Package contents

Gravity: mmWave 24GHz Human Presence Detection Sensor (12 Meters, I2C & UART) ×1
Gravity-4P I2C/UART Sensor Connector ×1

Key features

Communication Methods: It supports two communication methods, I2C and UART.
Interface: It uses the Gravity interface (PH2.0).
Human Detection: It can detect the presence of humans up to 8 meters and detect human motion up to 12 meters.
Distance Detection: It can measure distances from 1.2m to 12m.
Speed Detection: It can detect speeds from 0.1m/s to 10m/s.
Strong anti-interference capability: It is not affected by factors such as snow, haze, temperature, humidity, dust, light, and noise.
Compact size and easy integration.