What are sensors in iot?
The Internet of Things (The Internet of Things), also known as the sensor network, the Internet of things (The Internet of things) is defined as a network that connects any object to the Internet by means of information sensing devices such as radio frequency identification (RFID), infrared sensors, global positioning systems (GPS), laser scanners and other information sensing devices in accordance with agreed protocols for the exchange of information and communication to realize intelligent identification, positioning, tracking, monitoring and management. realize intelligent identification, positioning, tracking, monitoring and management of a network.
The key technology of the Internet of Things - sensors
IOT world, sensing first” is the consensus of today’s Internet of Things industry. Internet of things is mainly composed of four parts: perception layer, network layer, support layer and application layer. Sensing is the first technology of the Internet of Things, the stable operation of the Internet of Things can not be separated from the support of a number of sensing technologies, one of the most critical technologies is sensors such as pressure sensors.
As the “tentacles” of the Internet of Things, sensors play a vital role in today’s information age, and have penetrated into industrial production, environmental protection, bioengineering and other industries and fields.
Sensor deployment as IoT infrastructure, years ago there are countries proposed trillion sensor revolution, aimed at promoting social infrastructure and public services in the use of 1 trillion sensors per year, and is expected after 2030 will be 100 trillion sensors embedded in a variety of places.
It’s no exaggeration to say that sensors can do as much as there is a market for IoT in the future.
IoT Sensor Role
IoT sensors can convert physical quantities into electrical or digital signals for transmission in order to detect, measure, monitor or control a class of intelligent devices. It can communicate with other devices through the network to realize remote monitoring, data collection and other functions.
The basic principle of IOT sensor
IoT sensors are based on sensor technology, which acquires data by measuring the properties of an object (e.g., temperature, humidity, pressure, light intensity, sound, location, etc.) and then converts this data into a digital signal for transmission and processing. During transmission, IoT sensors need to utilize communication channels such as wireless networks, wired networks, or cloud platforms to transfer and interact with data.
Types of IoT sensors
According to different physical quantities and measurement methods, IoT sensors can be categorized into various types, such as:
1.Temperature and humidity sensor: used to measure the temperature and humidity of an object.
2.Pressure sensor: Used to measure the pressure on the surface of an object.
3.Light intensity sensor: Used to measure the intensity of light.
4.Accelerometer sensor: used to measure the acceleration of the object.
5.Position sensor: used to measure the position of the object.
Application of IoT sensors
With the development of Internet technology, the application of IoT sensors is becoming more and more extensive. They can be applied in the following fields:
1.Smart home: by installing sensors, remote control and automation control of home appliances can be realized.
2.Intelligent medical care: using sensors to monitor the health status of patients and realize remote diagnosis and treatment.
3.Intelligent logistics: using sensors to monitor the logistics of goods and realize tracking and management.
4.Intelligent transportation: monitoring the location of vehicles and traffic conditions through sensors to achieve road monitoring and intelligent navigation.
In short, the application prospect of IOT sensors is very broad, which can provide more convenient, efficient and reliable services for human work and life.
