Problem

IoT devices need to be able to share digital information about physical objects of interest. However, physical objects provide physical stimuli, which is not compatible with the format of telemetry data that devices need to transmit.

Solution

The IoT device can be used as an interface to the physical world and is equipped with the ability to transduce physical stimuli into digital data, and vice versa.

Application

Physical stimuli is converted into analog data and consecutively into digital measurement packets. The sensor and/or actuator mechanisms can be used to carry out this task.

Mechanisms

Actuator, Sensor

The smoke detector device contains a sensor mechanism that uses an analog-to-digital converter to convert the physical stimuli to telemetry data that is transmitted by the device’s modem.

This pattern is covered in IoT Module 2: IoT Technology and Architecture.

For more information regarding the Internet of Things Architect curriculum, visit www.arcitura.com/internetofthings.