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| Advantages of wireless communication |
| | Add time:2019/5/22 | The communication method can be simply divided into two types: wired (including erecting optical cable, cable or leased telecommunication line) and wireless (divided into establishing dedicated wireless transmission system). In comparison, the use of radio stations to establish a dedicated wireless transmission mode has the advantages of less investment, faster opening, and simple operation and maintenance than other methods. The disadvantage is that it is "not so stable and reliable."
Is wireless transmission really unstable and reliable? Obviously not. The wireless transmission method of TV, satellite, mobile phone and other communication tools that we are increasingly unable to live in is still relatively reliable. Wireless transmission also has many advantages.
1. Cheap cost
The establishment of wired communication methods must erect cables or dig trenches, so it requires a lot of manpower and material resources. The use of radio stations to establish dedicated wireless transmission methods eliminates the need to erect cables or dig cable trenches, and only needs to connect radio stations at each terminal. It is ok to set up an antenna of appropriate height. In contrast, the use of dedicated wireless transmission saves manpower and resources, and the investment is quite economical. Moreover, in some close-range communication systems (for example, building communication, small-area communication, etc.), the wireless communication method is more flexible. Usually, the signal of the walkie-talkie can cover the above-ground part of the building and small area without using Then set up a wireless repeater. If the wireless signal is required to reach the blind area within the underground part or small area of the building, then the wireless repeater is erected to extend and extend the signal range.
2. Short construction period
When remote stations connecting distances of several kilometers to tens of kilometers are to be connected to each other, wired lines must be used to erect long-distance cables or to dig long cable trenches. This engineering cycle may take several months. To establish a dedicated wireless network with a radio station, it is only necessary to set up an antenna of appropriate height. The engineering cycle can take only a few days or weeks. In contrast, the wireless method can quickly set up a communication link, and the engineering cycle is greatly shortened.
3. Good adaptability
The limitations of wired communication are too great. When encountering special application environments, such as encountering special geographical environments such as mountains, lakes, and forest areas, or applications where wiring is difficult, such as moving objects, the wired network will be Wiring engineering has a strong restraint, and the establishment of a dedicated wireless network with radio stations will not be subject to these restrictions, so the use of radio stations to establish dedicated wireless network communications will have better and wider adaptability than wired communications, almost no Geographical environment restrictions.
4. Good scalability
After a user establishes a communication network, new terminal devices are often added because of the needs of the system. If the wired method is used, it needs to be re-wired, the construction is troublesome, and it may damage the original communication line. However, if the wireless network communication method is adopted, simply clone the contents of the original terminal device to the newly added device, and then it can be realized. The expansion of the device is better than the scalability.
5. Terminal equipment is more convenient to use
Wired communication terminal equipment is fixed and cannot be moved, and wireless terminal equipment (including: walkie-talkie, mobile station, etc.) are portable and can be carried around, and communication everywhere, one-stop.
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