RS485 communication Modbus protocol human presence sensor Homekit home control

Function Description:

A highly sensitive 24GHz human presence state sensor. Its working principle is to use FMCW frequency modulation continuous wave to detect human targets in a set space, combined with radar signal processing and precise human sensing algorithms, to achieve high-sensitivity human presence state sensing. It can recognize human detection result data in motion and stationary states through dry contact or bus custom protocol, WIFI custom protocol, bus Modbus. WIFI Modbus protocol, and Apple Homekit output.

Application Scenario:

Widely applicable to users with human presence detection needs such as homes, office buildings, hotels, banks, hospitals, schools, airports, museums, laboratory factories, and agriculture. It is also suitable for professionals in equipment manufacturing, robot manufacturing, security manufacturing, and other fields.

Product features:

1. Supports custom bus protocol configuration
2. 24GHz millimeter wave radar, ultra wideband radar technology, biomedical engineering integrated sensor, accurately detects the static state of the human body in the area.
3. Using pulsed microwave beams to irradiate the human body and detect human life parameters. Due to the presence of limb movements, breathing, heartbeat, etc., the repetition period of the echo pulse sequence reflected by the human body changes. After demodulation, integration, amplification, filtering and other processing of the echo pulse sequence reflected by the human body, and inputting it into the microcomputer system for data processing and analysis, the data parameters of the measured human body are obtained.

4. When the human body is completely still breathing, the surface of the abdomen of the human body will fluctuate and change with the movement of breathing. Microwave sensors can capture the position of the chest and abdomen of the human body and accurately identify this small movement

5. When the human body is completely still, the most sensitive position for microwave detection is the chest and abdomen. If the position of the chest and abdomen is not aligned during the detection of small movements in a stationary human body, the detection distance will be reduced. 6. The microwave sensor can detect small movements of breathing within 2 meters of a stationary human body and movements of limbs within 5 meters when aligned with the chest position of the human body. 7. It is not affected by temperature, humidity, dust, airflow, noise, light, etc., and has strong anti-interference ability.
6. Microwave sensors aimed at the chest position of the human body can detect tiny movements of breathing in a stationary body within 2 meters and movements of limbs within 5 meters
7. Not affected by temperature, humidity, dust, airflow, noise, light, etc., with strong anti-interference ability.
8, It can penetrate materials such as glass, plastic, acrylic, and thin wooden boards, but cannot penetrate solid walls made of metal or cement.

9. Compatible with Modbus protocol and can also be connected to Apple's smart home system for use as a sensor.

Comparison of detection methods:

Sensing range:

Modbus bus control protocol:

Private protocol:

Apple Homekit access method:

1. The mobile phone is connected to the local area network (WIFl). At the same time, through the 485 serial port assistant, select the ASC code to send the command "HKTREST: 12, search the security information of the following official account, and click the HKT distribution network.
3. Enter the password for the current WiFi and receive a prompt indicating successful network configuration
Note: Apple phones may experience WeChat network configuration failure, please use an Android phone for network configuration

Add module to home

1. Open Home and click on Add Accessories
2. Click on more options.
3. Usually, accessories will appear. If not, click on 'My accessories are not displayed here'. 4. Enter the code (the code has been pasted onto the module casing)
Next, you can use Apple Home to check the status of sensors and receive notifications when the sensors are triggered

WIFI networking control usage method:

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