Infrared Remote control, an ancient technology that still exists today

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2 years ago

Electronic equipment such as television, radio tape, VCD player, DVD player, or air conditioner (AC), can now be confirmed to be equipped with a remote control. With remote control, we can adjust TV such as changing channels or changing volume from our sitting position without need to go and press buttons on the TV.

My TV use infra red remote

Although most people currently limit understanding of remote control to home electronic equipment, its function is actually much broader. As the name implies, a remote control is a remote control device that functions to control an electronic object remotely. The controlled object will then respond according to type of instruction it gives. Instructions are given by pressing appropriate button on remote control. Currently, remote control is used for various purposes, from changing temperature of air conditioner to controlling motion of robot.

The way remote control works is similar to how Morse code is sent via a telegraph machine. A sending operator sends a short text message to a receiving operator who is at a certain distance. However, message is sent in form of a Morse code pattern that represents letters in message it sends. Telegraph machines use certain codes because they cannot transmit voice data like telephones. But telegraph can send an electric current that is connected to a bell at receiver, so that receiving operator will receive sound from bell in certain patterns which, when assembled, can be translated as short messages.

Every remote has infrared LED as transmitter

Remote control uses an infrared LED (Light Emitting Diode) which functions as a transmitter of infrared light patterns. Infrared LED is a kind of small lamp that has a diode that will emit infrared light when given an electric current.

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Infrared signal that is sent cannot be seen by our eyes, because infrared rays are not included in electromagnetic waves in visible light spectrum. However, beam can be read by receiver on electronic equipment that receives signal. Receiver used is an infrared photo transistor. If received infrared signal pattern corresponds to one of instructions, such as an instruction to increase volume on television, volume of television will be increased. If infrared ray pattern that is read cannot be recognized, television will ignore it. This may happen if a remote control for other equipment that is not far from television is being used. Form of signal code for each button depends on electronic equipment manufacturer. Basically each company is free to define signal code for each button on remote control.

Use of this infrared ray signal is only suitable for indoor use, such as for home or office electronic equipment, because apart from having a short distance limitation (a maximum of about 10 meters), transmission angle is also very small so that remote control must be directed to right direction to electronic device. Infrared rays also cannot penetrate the walls, so they must be in room.

But now it has developed, many types of remote control use the bluetooth feature or take advantage of an internet connection. So it has a wide scope, so it can really control electronic objects from very far distances, without space restrictions.

Thank you for taking time to finish reading this article, I hope it is useful and adds to your insight.

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2 years ago

Comments

The remote control is one of the tools to make it easier for us, when we want to watch television shows, with the remote control we can play movies remotely without touching the television.

$ 0.01
2 years ago

Yeah technological make human life easier sir.

$ 0.00
2 years ago

Wow, the article is very interesting, the article explains the sophistication of remote control, but the more sophisticated electronics we no longer need to buy a remote control when our remote control is broken, because now the remote control is available in the playstore and we can download it via our cellphones to be able to use it.

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2 years ago

Not all cellphones can be remote control bro, what I know is that smartphone that supports remote control is Xiaomi series

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2 years ago

AnywAy nice reading about the remote controls. Never thought that someone can make such a long post on a simple remote.

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2 years ago

Thank you for your appreciation sir! I just try to write about things around me and I use them often, so it's easier to get ideas.

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2 years ago

Every thing that the controller sends is affiliated with an algorithm in the future. When the button to be operated is pressed, an algorithm is activated in the future and executes the command.

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2 years ago

Yes, that is how remote control works.

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2 years ago

Wow, you are like a remote seller, sir. Bcs you have a lot of remotes . Lol

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2 years ago

Hahaha yeah I am seller sir, but I am is Tempeh seller wkwk.

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2 years ago