October 4, 2013

Remote control technologies

Remote Control Technologies.

Today, if we look around, we see many equipments, appliances & gadgets that are remotely controlled. With the progress in electronics and material technologies, we find ourselves surrounded by many different emerging remote control technologies.

So what kind of remote control technologies are popular today? Let us have a look at it. Following is the list of most popular remote control technologies used by most of manufacturers.

1. Infrared Remote control.
2. Bluetooth remote control.
3. WiFi Remote Control.
4. GSM Remote Control.
5. Radio Frequency – RF remote control.

1. Infrared – IR remote control-

This is by far the most used & simplest remote control technology. We can see most of our entertainment systems controlled by IR remote control technology.
It is the cheapest technology among all remote control technologies available today. It uses Infrared Light to transfer data between Transmitter & Receiver.
Most popular example is our TV. The remote control handset you use carries Infrared Light Emitting Diode ( IR LED). This LED transmits data using Infrared Light. This spectrum is beyond our visual spectrum so we can not see the emitted light.

There is a receiver in TV, which receives this data through Infrared Receiver module. This data is then interpreted & appropriate action is performed. Most of our home equipments like TV, Audio systems, Light Systems use Infrared Remote control technology. ( we have many Infrared Remote Control Relay boards which can be used to make any electrical equipment to be ” Remote Controlled’.)

Infrared Sensor iknowvations.in
Typical Infrared Sensor
2. Bluetooth Remote Control.

As per Wikipedia “Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security. Created by telecom vendor Ericsson in 1994,it was originally conceived as a wireless alternative to RS-232 data cables. It can connect several devices, overcoming problems of synchronization.”

Bluetooth operates in the range of 2400–2483.5 MHz (including guard bands). This is in the globally unlicensed Industrial, Scientific and Medical (ISM) 2.4 GHz short-range radio frequency band.

Bluetooth has become part of  our daily life. Look around, your hands free headset, Car stereo system, wireless mouse, wireless communication devices, wireless controllers of popular game consoles like Nitendo’s Wii, Sony’s PlayStation 3, PSP Go, almost all  mobile phones, tablets & laptops carry & use Bluetooth devices.

Bluetooth Module iknowvations.in
Bluetooth Module
Bluetooth Module-1 iknowvations.in
Bluetooth Module
3. WiFi Remote Control –

As per Webopedia Computer Dictionary ” Wi-Fi, also spelled Wifi or WiFi, is a popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves. The Wi-Fi Alliance defines Wi-Fi as any “wireless local area network (WLAN) products that are based on the Institute of Electrical and Electronics Engineers’ (IEEE) 802.11 standards”.

Many devices like PC, Laptops, Smart phones, Tablets, Digital cameras and Digital Audio players use WiFi technology to connect to other devices through Internet or “Wireless Network Access Point”. When connected data can be exchanged between different devices & can be used to control them from any remote location all over the world.

Lately, many embedded systems using WiFi modules are used for Building & Home automation systems. Various devices are controlled remotely using WiFi technology.

WiFi Module iknowvations.in
WiFi Module
4. GSM remote control –

GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe protocols for second generation (2G) digital cellular networks used by mobile phones. It became the de facto global standard for mobile communications with over 80% market share.

The GSM standard was developed as a replacement for first generation (1G) analog cellular networks, and originally described a digital, circuit-switched network optimized for full duplex voice telephony. This was expanded over time to include data communications, first by circuit-switched transport, then packet data transport via GPRS (General Packet Radio Services) and EDGE (Enhanced Data rates for GSM Evolution or EGPRS).

This is the technology we use everyday in our mobile phones. Using GSM modules and the SMS technology, we can remotely control many equipments. Though this technology can be only be used where mobile telephone network is available. It is very useful in Industrial Automation sector to monitor various important parameters of connected machinery & provide reports at a regularly interval.

GSM remote control technology can also be used in Home & Building Automation systems. Few days back, I had a call from one of my client where she wanted to operate her door lock from her mobile.

GSM Module iknowvations.in
Typical GSM module
5. Radio Frequency – RF remote control-

This is also one of the growing & developing technology. Most of devices in this arena operate in  industrial, scientific and medical (ISM) radio bands. One of the prominent emerging technology is called ZigBee.  ZigBee is mainly used where data transmission requirement is not that high & does not require continuous transmission. Many applications like Sensors monitoring require periodic measurement & low data transfer between various connected devices. ZigBee is very useful in such applications. The most remarkable feature of ZigBee is very low power consumption.

Many embedded devices having ZigBee modules on board are used in Home & Building automation sectors. Applications like – Smart Lighting systems, Advance Temperature Control systems, Security systems, Wireless sensor network, Industrial control use ZigBee technology.

ZigBee modules iknowvations.in
ZigBee modules
RF module iknowvations.in
RF module

So now you know, there are so many ways you can have remote control of your products, appliances or gadgets. If you have any application, where you do not find ready made solutions ,  do write to me at info(at) iknowvations.in we will be able to provide you right kind of solution.

Happy Remote Controlling !

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