HLK-LD6002H 60G Infant Breathing Heartbeat Detection Ra·DAR Module Non-Contact Intelligent Monitoring Sensor (Module Only)

Power supply The ra·dar module requires a higher quality of power supply than conventional low frequency circuits. When supplying power to the module, the power supply is required to have no threshold burr or ripple phenomenon, and effectively shield the power supply noise brought by the accessory equipment. Ra·dar module needs good grounding, due to other circuits to bring the noise, may also cause the ra·dar module performance degradation or even work abnormally; the most common is to lead to the detection distance becomes closer or false alarm rate increases. In order to ensure the normal operation of the VCO circuit inside the module, the power supply of the module is required to be +5V or so, with a voltage ripple of 100m V; at the same time, the external power supply must provide sufficient current output and transient response capability.

Common Problems Interference factors: Ra·dar belongs to electromagnetic wave detection sensor, activity of non-living body will lead to false alarms. The movement of metal and liquid will lead to false alarms. Often, electric fans, pets close to the ra·dar, and shaking of metal curtains can cause false alarms. Ra·dar needs to be planned in terms of installation angle as well as installation place.
Non-interference factors: Ra·dar electromagnetic waves can penetrate human clothing, curtains, thin wood panels, and glass. Depending on the application, the installation angle and performance of the ra·dar need to be determined.
Semi-interference factor: Ra·dar is not suitable to face the air conditioner directly when it judges the presence of human body. The internal circuitry of the air conditioner can cause the ra·dar to misjudge the presence of the human body. Need ra·dar products do not directly face the air conditioning. Or in the same direction as the air conditioner.