Signify 324131296111X User Manual

5.8G motion detection sensor module

1. Product Overview

The 5.8G motion detection sensor is a module which can be integrated in smart lamps. It uses doppler frequency shift effect to detect move object speed. It will send out trigger signal to lamp controller when sensor module detects object motion. Lamp will dim or switch on/off based on the trigger signal of sensormodule.

1.1 Features

The module has three blocks what are 5.8G transmitter, IF base band, digital process circuit. The transmitter provides a 5.8G continues wave source, most of energy of source will radiate into the application field by patch antenna. Some will be input of mixer, the received reflection from move object will mix with theoutput of local oscillator, then get IF signal, tiny IF signal will be amplitude as several hundred mV level, the amplified signal will input ADC of STM32L03, the MCU will do sampling and calculate the signal amplitude and frequency, when the motion signal meets the requirement of trigger, the MCU will send out a trigger signal to host.

1.2 Main Application Fields

Intelligent LED

2.Dimensions and Footprint

2.1 Dimensions

Size: 18.2mm(W)*80mm(L).

Figure 2 dimension of the 5.8G motion detection sensor