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A data acquisition system is a collection of software and hardware that allows one to measure or control the physical characteristics of something in the real world. A complete data acquisition system consists of DAQ hardware, sensors and actuators, signal conditioning hardware, and a computer running DAQ software.
Examples of sensors include smoke detectors, motion sensors, and contact sensors. Examples of actuators include smart locks, smart power outlets, and door controls. Popular control platforms on which third-party developers can build smart apps that interact wirelessly with these sensors and actuators include Samsung's SmartThings, [ 295 ] Apple ...
The operator interfaces which enable monitoring and the issuing of process commands, such as controller setpoint changes, are handled through the SCADA computer system. The subordinated operations, e.g. the real-time control logic or controller calculations, are performed by networked modules connected to the field sensors and actuators.
The device layer refers to the physical components: CPS, sensors or machines. The network layer consists of physical network buses, cloud computing and communication protocols that aggregate and transport the data to the service layer, which consists of applications that manipulate and combine data into information that can be displayed on the ...
Sensors, to acquire information, Controllers, to provide decision and commands, Actuators, to perform the control commands and; Communication network, to enable exchange of information. The most important feature of an NCS is that it connects cyberspace to physical space enabling the execution of several tasks from long distance.
Actuator Sensor Interface (AS-Interface or ASi) is an industrial networking solution (Physical Layer, Data access Method and Protocol) used in PLC, DCS and PC-based automation systems. It is designed for connecting simple field I/O devices (e.g. binary ON/OFF devices such as actuators, sensors, rotary encoders, analog inputs and outputs, push ...
These interfaces may include computer screens, buttons, and other controls. Communication networks: Communication networks are used to interconnect the various components of the automation system. These networks may use wired or wireless connections and may be based on standard protocols such as Ethernet or wireless communication protocols.
A smart transducer is an analog or digital transducer, actuator, or sensor combined with a processing unit and a communication interface. [1] As sensors and actuators become more complex, they provide support for various modes of operation and interfacing. Some applications require additionally fault-tolerant and distributed computing.