Smart charging stations for electric bicycles emerged in 2014. In the past, the most common methods of charging were coin-operated and private. With the popularization of *** in daily life, smart "Internet of Things+" charging piles are slowly showing up in front of people. The changes in technology have greatly facilitated people's lives.
Beginning in 2015, with the popularity of ***, *** scanning code*** began in the field of electric vehicle charging stations. In terms of communication methods, most of them adopt 2G or 4G communication methods. Due to the high cost of 4G and the low market acceptance, in 2015, most manufacturers in the industry still adopted 2G communication methods.
Analysis of 2G communication methods in the field of charging stations
(1) There is a blind spot in 2G signal coverage
Underground parking lots, remote mountain areas and other areas have no signal in most cases, resulting in impermanence;
(2) 2G has the problem of exiting the network
There is still a signal today, and suddenly there is no signal tomorrow, which will cause the inevitable problem of replacing the site and cause unnecessary losses to the operator;
(3) 2G communication is charged
Generally, consumers are unaware of subsequent charges when purchasing products. After the equipment has been used for one year, it will be unable to pay because of the ***, and the *** can be used after communicating with the manufacturer to pay. There is no uniform standard for payment, which is roughly 20-200 yuan per year, which causes a certain economic burden on some operators;
(4) 2G is only a phased communication technology
The rapid development of communication technology makes it easy to be eliminated, and now it has entered the 5G signal stage;
(5) The cost of 2G communication hardware is not low
It is also based on 2G communication technology, but the gap in cost and performance is also very large. There are simple electronic coin acceptors, *** pulse signals, only solve ***, and have no knowledge of the equipment status; there are also *** more complete solutions, which can be remotely controlled, but the price is expensive .
Regarding the application of 4G communication technology on charging stations***
4G has obvious advantages in communication:
(1) The communication speed is fast enough. Compared with 2/3G communication, the speed is equivalent to 10,000 times in 2009 and 50 times that of 3G.
(2) High intelligence performance, relying on 4G communication to expand smarter operations. The design and operation of 4G communication terminal equipment is intelligent, and can be solid, multi-terminal interconnection and more unimaginable functions.
(3) Good compatibility. In addition to powerful functions, 4G communication is also very compatible. It can easily transition from low-end to high-end, open interfaces, diversified terminals, and smooth transition from the first generation.
(4) The communication quality is high, it can withstand greater data transmission requirements, the packet loss rate is lower, and it is more stable.
Compared with 2G, the price of 4G communication technology is too high, and the input and output of operators is relatively low. However, this year seems to be on the rise. Due to the many drawbacks of 2G, in the future, manufacturers will mainly promote 4G communications and gradually phase out the 2G model.
Zhengzhou Anneng Electric Vehicle Charging Station, a more professional choice and a more comfortable service.