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IR RF Remote Control— Anycon Remote Control Manufacturer

 post:2016-11-07


IR RF Remote Control— Anycon Remote Control Manufacturer


Infrared, line of sight and operating angle
Since infrared (IR) remote controls use light, they require line of sight to operate the destination device. The signal can, however, be reflected by mirrors, just like any other light source.

If operation is required where no line of sight is possible, for instance when controlling equipment in another room or installed in a cabinet, many brands of IR extenders are available for this on the market. Most of these have an IR receiver, picking up the IR signal and relaying it via radio waves to the remote part, which has an IR transmitter mimicking the original IR control.

Infrared receivers also tend to have a more or less limited operating angle, which mainly depends on the optical characteristics of the phototransistor. However, it's easy to increase the operating angle using a matte transparent object in front of the receiver.

Radio remote control systems
Radio remote control (RF remote control) is used to control distant objects using a variety of radio signals transmitted by the remote control device. As a complementary method to infrared remote controls, the radio remote control is used with electric garage door or gate openers, automatic barrier systems, burglar alarms and industrial automation systems.
Standards used for RF remotes are: Bluetooth AVRCP, ZigBee (RF4CE), Z-Wave.
Most remote controls use their own coding, transmitting from 8 to 100 or more pulses, fixed or Rolling code, using OOK or FSK modulation.

Also, transmitters or receivers can be universal, meaning they are able to work with many different codings. In this case, the transmitter is normally called Universal remote control duplicator because it's able to copy existing remote controls, while the receiver is called Universal receiver because it works with almost any remote control in the market.

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Keywords:ir remote control,rf remote control,remote control factory
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