Manwal tal-Utent tal-Modulu tal-Induzzjoni tal-Ġisem tal-Bniedem bir-Radar tal-Microwave HLK-LD105 10G

1. Introduzzjoni

The HLK-LD105 is an advanced X-band micro/motion sensing radar module designed for human body induction applications. Operating at a center frequency of 10.525GHz, this module utilizes a fixed-frequency, directional transmitting and receiving antenna (1TIR) system. It integrates IF demodulation, signal amplification, and digital processing functions to provide reliable motion detection.

The module features an open communication serial port, allowing for convenient adjustment of parameters such as delay settings, sensing range, and light intensity detection. Its compact design is suitable for embedded hidden installations and is unaffected by environmental factors like temperature, humidity, oil smoke, or water mist. This makes the HLK-LD105 ideal for intelligent lighting, security systems, smart home applications, and other automatic sensor control fields.

2. Karatteristiċi tal-prodott

• Based on X-band radar chip design, offering low power consumption micro/motion sensing.
• Center frequency of 10.525GHz.
• Includes delay setting function for independent parameter adjustment.
• Features non-penetrating detection (not through walls), anti-interference capabilities, and a small form factor.
• Designed for ceiling-mounted installations with a 120° sensing angle.
• Unaffected by temperature, humidity, oil smoke, water mist, etc., making it suitable for various lighting fixtures.
• Wide range of applications, including intelligent lighting in garages, buildings, security systems, and smart homes.

3. Speċifikazzjonijiet

4. Pin Definition and Interface

The HLK-LD105 module provides several pins for power, communication, and output. Understanding these pins is crucial for proper integration.

Tip ta' Interface: 2.0mm pitch

• V: Power input, DC 3.3-12V.
• G: Art.
• O: TTL high level 3V output.
• TX: Serial transmit pin of the radar module.
• RX: Radar module serial port receive pin.
• GND: Radar module power supply ground pin.
• NC: Not Connected.

The serial port level is 3V TTL, and the default baud rate is 57600.

5. Linji Gwida għall-Installazzjoni

The HLK-LD105 module is primarily designed for ceiling-mounted installations. For optimal performance, consider the following:

• Immuntar: Install the module on the ceiling.
• Għoli: The recommended hanging height is approximately 3 meters.
• Sensing Radius: The sensing radius is adjustable between 3 to 5 meters.
• Angolu ta' Sensing: The module provides a 120° sensing angle when ceiling-mounted.
• Embedded Design: The module is suitable for embedded hidden designs, ensuring it is not affected by external factors.

6. Sensing Range and Area

The module's sensing capabilities are illustrated in the diagram below. It distinguishes between a 'strong sensing range' and a 'weak sensing range'. The adjustable radius allows for customization based on application needs.

As shown in Figure 6, the module detects motion within a conical area. The strong sensing range is closer to the module, while the weak sensing range extends further out. The maximum detection radius is 5 meters at a 3-meter installation height.

7. Driver Power Supply Considerations

Proper power supply design is critical for the stable operation of the HLK-LD105 module. Please adhere to the following guidelines:

• Power Supply Quality: Tiżgura l-output voltage, current, and ripple coefficient of the drive power supply meet the required standards. An unstable power supply or excessive electromagnetic radiation can lead to false alarms, non-induction, or cyclic self-start phenomena.
• Voltage u Qawwa: The supporting drive power supply should be between 3.3V and 12V, with a power output greater than 150mW.
• Ripple u Storbju: Power ripple and noise should be minimized. The power ripple amplitude should be controlled within 50mV, and frequency fluctuations should be small.
• Pjazzament: When assembling the drive power supply and radar module, avoid placing the drive power module directly beneath or facing the antenna surface of the radar module. Keep it as far as possible from industrial frequency interference devices within the drive power module, such as rectifier bridges and switching transformers, to prevent interference with microwave signals.
• ADC Input Voltage: L-input voltage range of the ADC pin should be controlled within 0~3V. Exceeding this range may damage the radar module.

8. Operation and Parameter Adjustment

The HLK-LD105 module offers adjustable parameters to fine-tune its operation for specific applications:

• Ħin ta' Dewmien: This is the duration the module maintains its triggered state after detecting motion. The default value is 5 seconds, but it is adjustable via the communication serial port.
• Blocking Time: This refers to the period after a trigger during which the module will not respond to new triggers. The default value is 1 second.
• Medda ta' Sensing: The detection radius can be adjusted to suit customer requirements, typically between 3 to 5 meters.
• Light Intensity Detection: The module includes a photosensitive sensing capability. The initial value for light sensing is 255 (light sensing off state), which is also adjustable.
• Komunikazzjoni: Parameters are adjusted through the open communication serial port. Refer to the module's communication protocol for detailed commands.

9. Test and Use Precautions

To ensure accurate and reliable performance during testing and use, observe the following precautions:

• Environmental Reflection: Microwave reflections from surrounding walls or obstacles can influence the sensing distance and angle. In environments with more reflections, the sensing distance and angle may be gained. Conversely, in more open surroundings, they may be attenuated.
• Protezzjoni tal-Antenna: The microwave antenna is highly sensitive to small changes. Protect the antenna surface from any metal objects (e.g., solder wire, components) as these can significantly affect the sensing distance and overall detection performance.
• Immaniġġjar: Handle the module gently to avoid intense vibrations. Ensure it remains flat and is not deformed during installation or operation.
• Clearance: Maintain independent use of space around the module. A minimum of 2mm free space interval around the module is recommended to prevent interference.

10. Għajnuniet għall-Utenti

• For applications requiring precise detection, experiment with the adjustable sensing range and delay time to find the optimal settings for your environment.
• When integrating into an enclosure, ensure the material is microwave-transparent and does not contain metal near the antenna area to avoid signal attenuation or reflection.
• Consider the placement carefully to minimize false triggers from non-human motion sources or environmental factors.

11 Issolvi l-problemi

If you encounter issues with your HLK-LD105 module, consider the following common troubleshooting steps:

• No Detection / Intermittent Detection:
  • Iċċekkja l-provvista tal-enerġija voltage and stability. Ensure it meets the 3.3-12V requirement with low ripple (<50mV).
  • Verify that no metal objects are obstructing or too close to the antenna.
  • Ensure sufficient clearance (at least 2mm) around the module.
  • Adjust the sensing range parameter via the serial port.
  • Confirm the module is correctly oriented for ceiling installation.
• Allarmi Foloz:
  • Review power supply quality for excessive ripple or noise.
  • Check for strong electromagnetic interference from nearby devices.
  • Adjust the sensing range to be less sensitive if detecting unwanted motion.
  • Ensure the module is securely mounted and not subject to vibrations.
• Kwistjonijiet ta' Komunikazzjoni:
  • Verify serial port connections (TX, RX, GND).
  • Confirm the baud rate is set to 57600.
  • Check that the serial port level is 3V TTL.

12. Garanzija u Appoġġ

For technical support, detailed communication protocols, or warranty inquiries, please contact the manufacturer or your point of purchase. Ensure you have your product model (HLK-LD105) and any relevant purchase information available when seeking assistance.