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I don't know, there are so many shortcomings in wireless monitoring!
There are more and more people using wireless monitoring systems. Most people usually check the advantages and disadvantages, prices, and manufacturers' information before using wireless monitoring devices. However, most of the information on the Internet tends to be good, and the bad aspects are often hidden.
Therefore, today's Xiaobian does not mention the advantages of wireless monitoring , and instead introduces its shortcomings, letting friends who are planning or using wireless monitoring systems to further understand wireless monitoring.
1, wireless monitoring is susceptible to interference
As we all know, wireless monitoring needs to be used in conjunction with wireless transmission equipment. At present, most wireless transmission-dedicated wireless transmission devices use microwave communication mode, so they are easily interfered by various external factors, especially in a complicated environment.
Interference concept
When performing wireless monitoring transmission outdoors, it often encounters microwave signal interference of similar equipment, electrical interference of mechanical equipment, and magnetic interference in some special areas.
So what can we do when we encounter these disturbances?
Many manufacturers are focusing on transmission equipment with strong anti-interference ability, such as selecting 5.8G digital microwave channels with more channels, such as using special modulation-COFDM, and also using 3G and 4G networks of telecom operators.
Therefore, such as 5.8G wireless transmission equipment, COFDM wireless transmission equipment, and 3G4G wireless transmission equipment have been born on the market.
Of course, there are birds in the forest. Also called 5.8G wireless bridge, from a few hundred to tens of thousands of sets, the quality is very different.
You savvy consumers, when buying such equipment, you must not covet small and cheap. After all, wireless transmission equipment is really a penny. Everyone must polish their eyes and see the strength of a manufacturer. .
2. The distance and bandwidth of the wireless monitoring transmission equipment are limited.
In the market, many devices that promote long-distance wireless transmission can only transmit a maximum of one hundred kilometers. For example, Tengyuan Zhituo can transmit the farthest wireless bridge ST5023PRO, which can only transmit 100 kilometers. The repeater must be loaded far away.
If you want to carry out thousands of kilometers of ultra-long-range wireless transmission, it is still necessary to borrow the power of the Internet.
Similarly, the transmission bandwidth and transmission distance of wireless monitoring have similar problems. The theoretical transmission bandwidth of a typical single-module wireless bridge is 300 Mbps. To increase the transmission bandwidth, you can choose to add modules, but the current common three-module wireless bridge is also It can only transmit 900Mbps. If you want to transmit a large amount of data, the transmission equipment of the wireless monitoring system may not be able to support it.
However, users do not have to worry too much. After all, in practical applications, the transmission bandwidth of wireless monitoring can generally meet the needs of users, and not many users need to transmit more than 100 kilometers.
Tens of kilometers of wireless transmission projects are the norm. When encountering a project of one hundred to two kilometers, you can choose to use wireless transmission equipment with less jitter loss such as ST5801GB. In case of special circumstances, you have to find a special solution. .
3, wireless monitoring transmission equipment must remain unblocked
As mentioned earlier, wireless monitoring transmission equipment now uses microwave communication, and microwave communication is required to maintain unobstructed transmission.
Some people may know the characteristics of COFDM devices and 3G and 4G devices. These two devices can communicate wirelessly in the case of blocking, but you should also know that the price of these two types of devices is quite high. The current mainstream wireless monitoring transmission devices Still a wireless bridge.
Wireless bridges are a wireless transmission environment that must be kept open.
Therefore, before using wireless monitoring transmission equipment, technicians must develop a feasible transmission path. If faced with a less than ideal environment, they will have to use relay equipment, which will increase the project cost.
Therefore, wireless monitoring transmission equipment is still a bit harsher for the choice of environment.
4, wireless monitoring requires high technical staff
Tengyuan Zhituo's technical team
The wireless monitoring project not only has high requirements on equipment and environment, but also requires high technical personnel.
From the above three points, we can see that wireless monitoring equipment is very susceptible to the external environment. Therefore, the ability of wireless monitoring technicians is tested in the early stages of the design of wireless monitoring solutions, on-site installation and commissioning, and later maintenance.
Many customers have mentioned to us the situation of cooperation with other manufacturers before. Some manufacturers that do not inflow have provided equipment, but due to the lack of technical personnel, the equipment has been delayed and cannot be put into use. This is what many users cannot. Forbearance.
The advantages of wireless monitoring include “convenient and fastâ€, but because the technicians can't cope with the special on-site environment or the situation of sudden fa, the wireless monitoring system can't be built quickly, thus losing the advantage of “convenient and fastâ€. .
Optional elements for wireless monitoring of brand manufacturers
Therefore, to choose a good wireless monitoring equipment manufacturers, not only pay attention to their equipment quality, but also pay attention to their technical team, have a practical and experienced technical team of manufacturers, must be a good wireless monitoring equipment manufacturers .