﻿ Sytek.de - Sensors

Logo SyteK

Wählen Sie Ihre Sprache:

Patent granted



Sensors: Contactless Light Switching System

The switch system is used for a contactless switching of light sources, such as a kitchen light or a light in a living room cabinet. It consists of a central control unit, which performs the actual switching function. External input devices, in particular contactless sensors and reed-contacts, complete the entire system. The control unit can be configured for specific applications and provides convenience functions, such as a time-delayed switching of the light source.

99112 Cap Sensor

 Capacitive Sensor-Touch-Module
(Testcircuit for Customer)

Command input devices are, in addition to simple reed contacts which detect the opening or closing of a drawer or cabinet door, infrared and capacitive sensors. Capacitive sensors typically detect the approach of a hand by a change in the capacitance of an onboard sensor. The measurement of the capacitance changes, the noise suppression, as well as the automatic adaptation to different sensor environments is performed by a microcontroller. From the obtained data, in case of a positive detection, the microcontroller generates a control signal, which causes the central control unit to toggle the switch.

Core component of the infrared sensor module is an integrated sensor circuit which is connected to a microcontroller via an I2C-bus. It includes an IR transmitter, an IR receiver and an ambient light sensor. The microcontroller controls the functions of the sensor IC and evaluates the measurement results. If an object is detected in the detection area, a corresponding trigger pulse is sent to the central control unit. The software used performs an automatic adaptation to changes in ambient light conditions (eg. day/night), a noise suppression and removes constantly present and disturbing objects in the detection area from visibility.

99113 IR SensorInfrared Sensor-Module
(Testcircuit for Customer)



FaLang translation system by Faboba