The Technology is a fundamental part Its influence on our daily activities will continue to increase throughout our lives and in the years to come, so we must all continue to grow at the same time.
The Covid-19 pandemic has made it clear that there are people who are unprepared Internet of Things, as they seemed foreign to many. They had to catch up quickly so as not to fall behind and maintain contact with activities and people they had to physically stop seeing.
Technology will continue It influences our daily lifeSo it is important not to stop expanding our knowledge in terms of cloud space, metawares, USB, cryptocurrencies etc.
Wireless technology is a technology that provides communication between two devices without the use of cables or any physical means.
Among wireless technologies we see radio frequency, infrared waves and microwaves.
For it to work, air is used as a medium because electromagnetic waves are transmitted through it. In this communication there is a sender and a receiver, the first is responsible for sending encoded information and the second is for decoding and receiving it.
Wireless transmission began roughly in the 19th century, when physicist Heinrich Hertz discovered electromagnetic waves, how to generate and detect them, and in 1888 achieved the first wireless transmission over a very short distance through two points.
Thanks to this experiment, he discovered that electromagnetic waves can transmit and receive information from one place to another through the air without using cables.
Then in 1890, electronic engineer Guglielmo Marconi developed the first commercial radio frequency communication using wireless telegraphy. It reached a distance of 1 km and was considered the first official wireless transmission.
However, many scientists claim that radio was first carried out by Nikola Tesla.
As we have already mentioned, this technology works with electromagnetic waves. You need a transmitter and receiver for this to work. Both are located at one end of the wireless system and each uses an antenna.
The frequency of these waves is the speed at which the signal vibrates. That is, the frequency is equal to the number of times a wave repeats itself in one second and is expressed in Hertz in honor of the physicist.
So, a 1Hz wave repeats itself once every second.
For communication to be effective, the transmitter must generate an electrical wave that is transmitted through the device’s internal cables to its antenna, which takes on the role of conductor. Then, this electricity runs through the entire antenna, which then transmits the information as an electromagnetic wave.
Once the information is sent, the receiver picks up the waves and generates small electrical signals at the antenna, doing the reverse process of the transmitter.
According to the frequency at which the waves propagate, they are classified into several types:
- Radio Frequency (RF): They have a range of 3KHz to 300GHz and are easily manufactured. This correlation depends on many factors such as wavelength, power of the transmitter, quality of the receiver and dimensions of the antenna.
- Infrared: They are electromagnetic radiations that have wavelengths much longer than visible light and are generated by an LED diode. They are used for short distance communication and cannot travel through solid objects.
- Microwave: These vary from one meter to one millimeter and their frequency ranges from 300MHz to 300GHz. They are used to transmit data at frequencies where RF waves do not interfere. They are ideal for long distance communication.
In addition to these types, we can also find other well-known technologies such as WiFi, WiMAX and Bluetooth.
Information that Very technical These regulations clarify how Affects daily activities Why is it important to know them in this fast-paced world?
Although some terms are familiar, or on the contrary, unknown, the truth is that knowing their meaning allows you to stay one step ahead while living in the vast world of technology.
