1pc HLK-LD1020 10G Intelligent Human Microwave Induction Radar Module Sensor New

Product selling point:

1. The use of high-quality materials, quality assurance

2. Design low-power micro/motion sensing module based on X-band radar chip with center frequency of 1 0.525GHz. The design adopts fixed frequency, directional transmission and receiving antenna (1T1R), integrates IF demodulation, signal amplification and digital cessing functions, has the capability of delay setting, easy to adjust parameters independently, and does not penetrate the wall, anti-interference, small size, clutter and high harmonic suppression effect, high stability and consistency

3. Integrated algorithm inside the chip, direct output of test results, without external single-chip microcomputer. In the mode of module pulse power supply, the power consumption is in the microampere level, mainly for low-cost and low-power applications

4. Embedded installation, not affected by temperature and humidity, oil smoke, water fog, etc., can be applied to all kinds of lamps, such as bulb, downlight, ceiling light, etc. Low power application scenarios, such as visual doorbell, cat eye, door lock, low power camera, etc

5. Wide range of applications

Parameters:

Operating frequency: 10.525GHz(10.40~10.65GHz)

Operating voltage: 3.3~12.0V

Working current: 16mA(Max, VCC=3.3~12.0V)

Detection Angle: ceiling mounted /3dB beamwidth /110°±10°

Sensing distance: 2~8 meters (hanging height 3 meters)

Output voltage: 3.3V(3.2-3.4V)

Power-on stability time: 15S(13~17S)

Working environment: Temperature 20°C~+70°C/ Humidity 10~95%Rh

Block/delay time: 2S/5S(Typ.)

ESD characteristics: Contact discharge/air discharge 2KV(Typ.)

Appearance size: 15x15x2.4mm

Driving power supply design considerations:

Must use the output voltage, current and ripple coefficient of the drive power supply are up to standard, the drive power supply is unstable, electromagnetic radiation is too strong, will cause radar module false alarm, no perception, cycle self-starting and other phenomena;

The matching drive power supply should be 3.3~12V, the drive current is not less than 1mA(or 100mA), the power ripple amplitude should be controlled within 100mV, and the power frequency fluctuation amplitude should be small;

When assembling the drive power supply and radar module, avoid the bottom of the radar module or the antenna surface, and face the drive power module, and try to stay away from the rectifier bridge, switching transformer and other power frequency dry in the drive power module

Disturb large devices to prevent interference with microwave signals.

Note:

Devices equipped with radar modules should be installed away from ventilation pipes, fire pipes, drainage pipes, mechanical vibration or large metal equipment and other strong vibration objects, because it will affect the radar reflection wave and detection and perception effect;

Live operation is strictly hibited, so as to avoid misoperation, wrong connection, burnt circuit or electric shock;

Avoid installation in sun-soaked places to prevent damage and affect service life;

The device must be installed away from electromagnetic fields to avoid misoperation caused by electromagnetic interference. It should also be installed away from objects that are fixed to rotate or swing (e.g. electric fans, swaying leaves, drying clothes in the wind)

Clothes, etc.), so as to avoid wrong actions;

When the devices of several built-in radar modules are fixed, the spacing between each device shall be ≥0.5m;

The antenna surface of the radar module is recommended to be 3~5mm away from the duct shell, otherwise the perceived distance will be affected.

After installing the built-in radar module of the device, it is recommended to place it horizontally or vertically within the effective sensing range, and try to avoid face-to-face installation of two or more built-in radar modules of the device;

Avoid other light objects (such as emergency lights, guide lights and other interference light sources) near the devices (such as lamps) of the built-in radar module, so as not to cause the failure of the sensor (if any) judgment in the device (lamp), so that the device (lamp) can not work normally (off, misjudged as daytime);

If a device (such as a lamp) that uses a built-in radar module is always working (steady on) and cannot be turned on or off according to moving target detection, it may be that the radar module is subject to mid-frequency interference, causing the module to judge that there is a moving target in the perceptual range. At this time, the power supply should be turned off to check whether the power supply status of the power supply board is normal and whether the space distance of the module is changed;

If the above blems can not be solved, please first power off and observe the installation position around the situation, first eliminate the influence of surrounding environmental interference factors; If the fault persists after the power is restarted, replace the driving power of the device

Board, or radar module revalidation.

Parcel list:

Radar sensing module *1