Senors Technology plays a key role when we use it in IoT. The sensor is a device which detects changes in an environment or measures physical property, record, indicates or respond to it. so, different types of applications require different types of sensors to data from the environment.
Role of sensor Technology in IoT
The internet of things has created many smart innovations like smart cities, smart agriculture, smart factories, and many more. How do they become smart? The key lies in real-time data capture and analytics, using various types of sensors. It plays a crucial role in creating IoT devices. Senors are innovating very fast. Sensors detect external information, replacing it with a signal that humans and machines can distinguish.
Sensor technology in IoT makes it possible to collect data in almost any situation. For instance, We use sensors in medical care, nursing care, industrial, logistics, transportation, agriculture, disaster prevention, tourism, regional businesses, and many more. In other words, With the expansion of the fields in which sensors play an essential role, the market is still growing with various sensors.
How does the sensor work?
IoT cloud servers and devices depend on sensors to collect real-time data. Sensors detect changes in their environment and then convert it to digital data. Because, the physical parameters are present in the analog signal like the temperature in Fahrenheit, speed in miles per hour, distance in feet, etc.
Sensors need to connect to the cloud through some connectivity. Nowadays, we use wireless technologies such as Bluetooth, NFC, RF, Wi-Fi. Depending on the network set up, more and more gateway products are used to perform edge computing (data analytics) before sending data to the cloud servers. Once the data gets to the cloud, the software processes it. Moreover, they might decide to act, such as sending an alert or automatically adjusting the sensors/devices without the user’s need. But if the user wants to do some changes user interface allows them to so.
How and where the sensor Technology is used in IoT
There are many sensors to detect various physical phenomena, such as heat and pressure.
Example of sensors that detect physical properties are Temperature and humidity sensors
- Temperature and humidity sensors
- Acceleration sensors
- Gyro sensors, etc
And the five human senses: sight, hearing, touch, taste, and smell.
Examples of sensors that detect the five human senses
- Thermistors
- Sound pressure sensors
- Odor sensors
- Imaging sensors, etc
Sensor types vary depending on the sensing object, into three types in terms of communication interface.
