How control and monitoring has be done

- Sensors gather information from application being monitored or controlled.

- The data being gathered is frequently analogue in nature and hence requires translating into digital using an analogue to digital converter (ADC) to enable the computer or microprocessor to 'understand' and process the data from the sensors.

- Computer or microprocessor will compare the incoming data with the data values stored in memory

- if monitoring, computer/microprocessor system will warn the user in the form of a sound (for example a siren if a burglar alarm, a loud beeping sound if monitoring patients in a hospital) and/or read outs (for example heart rate trace in hospital monitoring system, temperature reading on a chemical plant).

- If a control system, computer would send a signal to a device that will be converted to analogue using a DAC (analogue to digital converter); actuators are generally used to operate devices such as valves, heaters etc.

- The device will be instructed to switch off or on (for example if controlling a central heating system, if temperature > set temperature a heater would be switched off and/or a cooling fan switched on; if temperature is below the set point then heating would be switched on and/or a cooling fan switched off)

- Microprocessor/computer system will continually monitor the data coming from sensors.

 

Posted Date: 9/10/2013 2:21:56 AM | Location : United States

Ask an Expert

Related Discussions:- How monitoring and control has be done, Assignment Help, Ask Question on How monitoring and control has be done, Get Answer, Expert's Help, How monitoring and control has be done Discussions

Write discussion on How monitoring and control has be done
Your posts are moderated

Write your message here..

Related Questions

How many bit combinations are there in a byte, Byte have 8 combinations of ... Byte have 8 combinations of bits.

Pseudo code for career management system, tell me the pseudo code for caree... tell me the pseudo code for career management

Explain the purposes of modulation and demodulation, Question The diagr... Question The diagrams below depict a modulation (left) and a demodulation(right). (a) Express y(t), u(t) and z (t). (b) What may happen to the demodulated signal y

Name the various magnetically hard alloys, Name the various magnetically ha... Name the various magnetically hard alloys. Several of the magnetically hard materials are rare earth carbon steel, cobalt, tungsten steel, alnico, hard ferrites and cobalt stee

Asset information management system, Asset information management system: ... Asset information management system: GIS has the potential to revolutionize the reform procedure in areas such as consumer indexing, asset and work management, distribution ne

Briefly explain about laplace transform, Q. Briefly explain about Laplace t... Q. Briefly explain about Laplace transform? Many commonly encountered excitations can be represented by exponential functions. The differential equations describing the network

Clipper, design a clipper circuit of a sinsoiudial wave of a peak value 25v... design a clipper circuit of a sinsoiudial wave of a peak value 25v&minimum value of -12v to make the output voltages of 20&-9v respectively.

A, A microstrip antenna system operating at 915MHz must be designed using R... A microstrip antenna system operating at 915MHz must be designed using Rogers RO3010 substrate with the thickness of 0.635mm.

Determine the transfer function and driving-point impedance, Q. A filter is... Q. A filter is a network employed to select one range of frequencies while rejecting all other frequencies. A basic building block often used in integrated-circuit filters is shown

Blanking circuit, Blanking circuit: The saw tooth sweep voltage applied to... Blanking circuit: The saw tooth sweep voltage applied to the X places moves beam across the CRT tube in a straight horizontal line from left to right during the sweep or trace tim