Sensing and Control Essay Example for Free

Sensing and Control Essay There are hundred and millions of softwares that use sensing and control. Companies need to use sensing and control. Otherwise computers will not be able to communicate with each other and we will not be able to live without the sensing and control program because it is an every day use. Sensing and control is mainly used to start and stop things without a human being there. An example of this would be traffic lights. They work automatically using sensors. Cameras use sensors to record what is going on. Speed cameras use sensors because when cars go over a limit of speed it takes pictures. This is where sensors are used. We need sensors because it I part of our every day live. This affects the company very widely and efficiently. Having sensors keeps order and peace among the people that we live among. It help the decrease of road accident and safety for the passer bys. This software fit into this organization because this software is all about sensing and control it widely helps the company and makes their lives much easier. Imagine if there were no traffic lights what do you think the cause would be? There would be accidents; there will be patience with in the public. What would happen when cars get to a crossing and there are no traffic lights BANG you get a big collision? We all depend on a little software that helps keep order among the streets. 1. A control system typically comprises: 2. A computer or microprocessor 3. A control program which handles data from sensors and sends signals to output devices. 4. An interface box to convert signals between the sensors and processor Most systems can response very quickly and efficiently to the computer. Most system run 24 hours a day and 365 days a year. Most systems are controlled by the computer. This is very efficient. This also prevents humans from working in very dangerous places and use controlled computers to do the work. This is a fact that computers can process data Computers are now used to control many types of devices such as: Air conditioning and central heating systems are used in buildings and homes. Security systems used to prevent burglaries and own protection. Manufacturing processing. Traffic lights and pedestrians. Sensors Sensors are used to measure physical and quantities such as temperature, light, sound pressure and humidity. They send signals to the micro processor that controls this. For example: Some security alarm systems have inferred system within them. When something crosses this signal, the signal breaks and the alarm goes off. A heat sensitive sensor, which is mainly in the top corner of the room, can also sense presence of a person in a room. Temperature sensors are used to control the amount of heat in a room or a house. Magnetic sensors are loops in the tarmac to detect metal above them. This is also used to detect over head cars passing by. In some case there are many dams that haves computer controlled computers. The data from a water level sensor is continually sent to the processor. The computer has a controlled program which usually stores the required level of water. If the water level gets too high a valve is opened to let the water out and similarly if the water level is too low a valve is opened to let the water in. this controlled program stores the details of the water level and the action the computer must take.