ACTUATORS

 Actuators: Actuators are the outputs for the device—the motors, lights, and so on, which let your device do something to the outside world.

IoT actuator types

Actuators, as the name itself suggests, can act on their immediate environment to enable correct operation of the machines or devices they are embedded into. Small as they are, they are rarely visible during operation, but the effects of their work can be felt in vehicles, industrial machines or any other electronic equipment involving automation technologies. They can be separated into four main categories based on their construction pattern and the role they play in a specific IoT environment:

  • Linear actuators – these are used to enable motion of objects or elements in a straight line.
  • Motors – they enable precise rotational movements of device components or whole objects.
  • Relays – this category includes electromagnet-based actuators to operate power switches in lamps, heaters or even smart vehicles.
  • Solenoids – most widely used in home appliances as part of locking or triggering mechanisms, they also act as controllers in IoT-based gas and water leak monitoring systems.

EXAMPLES

One of the simplest and yet most useful actuators is light, because it is easy to create electronically and gives an obvious output.

 Light-emitting diodes (LEDs) typically come in red and green but also white and other colours. RGB LEDs have a more complicated setup but allow you to mix the levels of red, green, and blue to make whatever colour of light you want. More complicated visual outputs also are available, such as LCD screens to display text or even simple graphics.

Solenoids can by used to create a single, sharp pushing motion, which could be useful for pushing a ball off a ledge or tapping a surface to make a musical sound

 Stepper motors can be moved in steps, as the name implies. DC motors simply move at a given speed when told to.

Comments

Post a Comment

Popular posts from this blog

Defining IOT 2021

1-Internet of Things Definition and Few essential Features Internet of Things (IoT) term represents a general concept for the ability of network devices to sense and collect data from around the world, and then share that data across the Internet where it can be processed and utilized for various interesting purposes. The IoT is comprised of smart machines interacting and communicating with other machines, objects, environments and infrastructures. Few features Ø   The devices in IoT can be controlled remotely to perform the desired functionality. Ø   The information sharing among the devices then takes place through the network which employs the standard protocols of communication. Ø   The smart connected devices or ‘‘things’’ range from simple wearable accessories to large machines, each containing sensor chips. For instance, the Lenovo smart shoes contain chips which provide support of tracking and analyzing fitness data . Ø   Similarly, the electri...
Read more

Physical Design of IoT-1

  It includes IoT Devices and IoT protocols- Device consist of several interfaces for connection to other devices such as § I/O interface for sensors § Interfaces for Internet Connectivity § Memory and storage interfaces § Audio/video interfaces The sensed data s either communicated to other devices or servers/ cloud based storage. The generic block diagram of IoT deviceis as follows- • USB Host   - According to the  USB (Universal Serial Bus) standard a device is classified as either a  host  or a peripheral device. In the most common scenarios the  host , such as your PC, acts as a controller and the peripheral, such as a  USB  drive, responds to its commands. • Registered jack-45  (RJ45) refers to a cable termination specification that specifies physical male and female connectors and the pin assignments of wires-in telephone cables and other networks that use RJ45 connections. RJ45 connections are also known as data jacks....
Read more