In the era before Zhou Fangyuan's rebirth, big data and cloud have become the most common words in society.

Maybe this cloud appears a little less frequently, but big data has really penetrated into all walks of life.

Game manufacturers pay attention to big data, video websites pay attention to big data, retail and wholesale pay attention to big data, read books and comics pay attention to big data, even when you go out for a meal, you also pay attention to big data.

A person's behavior pattern can be summarized and analyzed through a variety of data, and then processed data can clearly show a person's personality and preferences. Then, each company can provide them with "exclusive" customized recommendations according to the different needs of different users. Of course, this exclusive degree of privacy is not high, after all, you can't compare this kind of personalized service that is almost equal to free in the daily life of ordinary people with the private customization of the rich businessmen and the rich. But I have to admit that after a certain degree of personalization, it represents the gradual improvement of consumption level.

Just imagine, turn on your phone, what you see, hear, buy, eat, are all your favorites, what will you do? Will you be happy? Will you spend more money?

Mobilize the people's desire to consume, make the market more circulating, why the online loan business will become more and more prosperous in the future, in the final analysis, these are all connected.

First of all, big data and cloud computing to determine a person's various attributes, and then smart phones and QR codes, will "consume" more natural, when spending cash in the past, there may be various considerations and hesitations, in the mobile payment electronic payment, this hesitation and consideration will become a lot more indifferent, that is, to spend money more lavishly. Further, it is the online loan business, because it spends a lot of money, so there is not enough money to spend, and then you need to borrow money...... I can't say whether this change is good or bad, anyway, with Zhou Fangyuan's current identity and status, the kind of policy that has reached the national level or something, he can't fully understand it, he can only say that this kind of consumption model is really powerful.

Why did the speed of China's development increase sharply after the first five years of the 21 st century? The main reason is that consumption has been stimulated, all walks of life have become active, and the vitality of the country has been further stimulated.

Of course, this son's mobile payment has not yet fully started, and what big data and what cloud payment are still only in the embryonic form. But since he is a reborn, Zhou Fangyuan is of course clear about the future direction. Those things that are not good, that have a bad impact, he will not get his hands on them. For example, those online loans and campus loans or something, it seems to be for students and people who are in urgent need of money, help, take a look at those long reports on the Internet, while "helping" others, these things unknowingly, and hurt I don't know how many people. So this kind of thing, Zhou Fangyuan will definitely not be contaminated, if it is dyed, it will not be washed off, but mobile payment, big data, cloud computing, these things are the healthiest industries. Things like online loans are just grown on the basis of the former, and there are many things that have also grown, and online loans are not the only ones.

Moreover, the state did not say anything, and it was not his turn to express his opinion.

The gossip is far away, in short, Zhou Fangyuan is managing the current industries, while silently continuing to pave the way, and his tentacles continue to diverge into the distance.

In October, autumn is crisp.

The distant I2 mobile phone has been announced!

Guaranteed update speed once a year, just like Apple and Samsung in previous lives.

The biggest difference between the I2 and I1 is that there are more cameras. Of course, this is on the surface, in the background, the mobile phone system has been upgraded, the hardware has been upgraded to a certain extent, the battery life of the mobile phone is stronger, and the charging technology is faster than before.

Yes, fast charging technology, this technology that has begun to gradually become popular on mobile phones in later generations, Zhou Fangyuan also specially reminded Andy and asked them to try it. I don't want to get it right all at once, but at least there is a direction, and in the subsequent version changes, we will continue to strengthen the technical intensity in this area, and it is best to keep the lead.

What is fast charging technology? Quite simply, as the name suggests, it is the technology of fast charging of mobile phones.

In the era of non-smart phones, the mobile phone screen at that time was very small, but the key lock function was relatively simple operation, it may take a long time to charge once, and the power consumption capacity of the mobile phone is also very weak, and everyone may not pay much attention to the power of the mobile phone. But then the screen is getting bigger and bigger, and the functions are getting richer and richer, so the mobile phone power is not enough, and the mobile phone manufacturer has to increase the capacity of the battery crazily.

But as mentioned earlier, there is a limit to the size of the mobile phone, and it is impossible to enlarge the volume of the mobile phone indefinitely. But there is also a limit to magnification, on the one hand, it is to take into account the convenience of human use, and on the other hand, it is also to take into account the protection of the fuselage, especially the protection of the screen. The larger the area, the more likely it is to damage the screen due to various collisions, so generally speaking, five inches, at most six inches, is almost the limit of the smartphone screen, and even a little bigger, it can be, but to be honest, it is not that big. And the screen is large, and the relative power consumption will become larger, but in fact, there is still no change in the end.

Therefore, mobile phone manufacturers can only increase the battery capacity as much as possible, and the problem of smartphones not opening the cover is also said earlier, and a large part of the reason is also because of the problem of mobile phone batteries.

But the battery capacity is sufficient, and charging becomes a problem. Using an ordinary charger, it is very annoying to charge it overnight every time it is charged. After all, it is hard to fully charge, and it won't take long for the battery to run out, and even if you find a temporary charging place, it turns out that because the charging speed is too slow, an hour or two of time is meaningless...... Therefore, the application of fast charging technology was born.

Fast charging technology, as far as Zhou Fangyuan knows, was widely used in two fields before he was reborn.

First of all, in the field of electric vehicles, in December 2013, Ailang Electric Vehicle officially announced that it had successfully invented a mature 2-hour fast charging technology and introduced it to the market, making "2-hour fast charging" a reality. As a well-known electric vehicle brand in China, Ailang electric vehicle exclusively introduces BYD electric vehicle power system technology, which can travel 10 kilometers in more than 10 minutes, which greatly facilitates people's travel and liberates from charging, and Ailang and BYD have developed a special power battery life of 3 times that of ordinary batteries, and the majority of electric vehicle owners are no longer limited to travel. So far, it marks that the domestic electric vehicle industry has entered the era of 2-hour fast charging.

And then there's the mobile phone space.

Mobile phone fast charging is mainly divided into three categories: VOOC flash charging fast charging technology, Qualcomm Quick Charge 2.0 fast charging technology, MediaTek Pump Express Plus fast charging technology, of which Qualcomm and MediaTek both use high-voltage charging, while VOOC flash charging uses high-current charging.

There are two general directions to increase the charging speed: one is to increase the voltage, and the other is to increase the current. Increasing the voltage increases the amount of heat generated during charging, accelerates battery aging, and can pose a safety hazard, so the actual effect is not good. In contrast, increasing the current is more realistic. VOOC flash charging technology uses a low-voltage and high-current mode to ensure safety during charging. VOOC flash charge for 5 minutes and 2 hours of talking, and 30 minutes of charging can charge the phone from 0% to 75%.

In February 16 years ago, Barcelona, Spain, OPPO at the 2016 Mobile World Congress, showed its latest black technology, mainly including fast charging and the latest achievements in imaging technology - OPPO VOOC super flash charging and SmartSensor image chip stabilization technology, of which OPPO VOOC super flash charging 15 minutes to charge a 2500 mAh mobile phone, charging for 5 minutes, talk for 10 hours.

Qualcomm's Quick Charge 2.0 technology is an upgraded version of Quick Charge 1.0, which uses a new specification to increase the charging speed by increasing the current and voltage at the same time.

As for MediaTek, its new fast-charging technology, Pump Express, is a power management integrated circuit built into the PMIC. The charger is allowed to determine the initial voltage required for charging according to the current, and the PMIC sends a pulse current command to the charger through the USB Vbus, and the charger adjusts the output voltage according to this command, and the voltage is gradually increased to up to 5V to reach the maximum charging current.

As for everyone's technical methods, the foundation is the same, but the operation is different.

And there is a very serious problem, that is, fast charging technology, although it provides users with great convenience in use, but at the cost of the service life of the mobile phone battery.

The battery of a lithium-ion battery has two poles: the positive electrode is a lithium compound, and the negative electrode is graphite. Charging and discharging are the mutual conversion of electrical energy and chemical energy, and lithium ions are also turning into different compounds during the movement of positive and negative electrodes.

We can think of lithium ions as cars with electric charges: when charging, due to the action of the electric field, the cars are all driven to the negative electrode to store a certain amount of energy, and when discharging, these charged lithium-ion cars run to the positive electrode due to chemical reactions, and form an electric current in the process to supply electricity.

Ideally, as long as the chemical structure of the positive and negative electrode materials does not change basically, and the reversibility of battery charging and discharging is good, lithium-ion batteries can ensure long-term cycling. The fast charging is mainly to ensure that the lithium ions are quickly embedded from the positive electrode and quickly embedded in the negative electrode, and cannot cause the deposition of lithium ions. However, when the current increases, a semi-permeable membrane on the surface of the electrode anode will be broken to a certain extent, so that the electrode material and the electrolyte react with each other, and the temperature increase will also cause side reactions inside the battery to destroy the chemicals on the battery, resulting in a decrease in reversibility and a continuous decrease in the battery capacity. This is what we often feel, why the battery is becoming less and less able to withstand use when it is clearly fully charged.

Taking the lithium battery of DJI drones as an example, a 4480mAh 68Wh lithium battery with a voltage of 15.2V only takes one and a half hours to fully charge, but the life of the lithium battery of DJI drones is only 200 cycles, and the attenuation of battery life is obvious.

Therefore, even though the batteries equipped with some fast-charging mobile phones have been improved in terms of cell materials and design, and can quickly embed and extract lithium ions in the battery, the high voltage and current still cause the battery to cause losses. Of course, if someone is used to changing to a phone in a year or two, or is willing to change to a new battery, the impact can be said to be minimal. However, as far as the current situation is concerned, this is unlikely, no matter what, the mobile phone is not a cabbage, and those European-style thousand-yuan machines can be replaced every two years without pressure, but what about three or four thousand mobile phones? What about five or six thousand or even seven or eight thousand mobile phones? The vast majority of ordinary people are impossible to change casually every two years.

Therefore, in the known time in the future, most of the companies that provide fast charging solutions have not given their impact on battery life from the perspective of batteries, but under the national standard, the battery capacity of more than 80% after charging and discharging 500 times is qualified, and it has little impact on the use within one year.

But it must be admitted that fast charging technology is definitely very helpful for smartphones. Zhou Fangyuan's Yuanfang I2 mobile phone began to launch this technology. It's just that they didn't put the fast charging technology on the bright side, but quietly carried it, and improved the charging speed as a whole, which is faster than before, but far inferior to the fast charging technology in the future. However, the advantage of this is that the mobile phone can be kept in a certain state for a long time, which can not only improve the charging speed of the mobile phone, but also will not cause the mobile phone to age rapidly due to the too rapid charging speed.

Of course, the technology itself is not yet mature, and it is only a test of the waters. In the future, with the continuous upgrading of mobile phones, this technology will be gradually improved, but before that, it is better to take your time and accumulate technology first to ensure that you can go to the front.

In fact, there is another reason for the launch of the I2 mobile phone, that is, Apple and Samsung are also launching their respective smartphones. Originally, these two companies began to gradually enter the field of smart phones in the past few years, but in this life, they were preempted by Yuanfang Technology and Zhou Fangyuan, and of course they were not convinced. Other manufacturers, such as Motorola and Nokia, there is no movement at present, and there is no news coming out, I don't know what they think, whether they sit idly by, or silently develop it, but Apple and Samsung are high-profile, it seems that they don't want to see a Huaxia riding on their heads, so not long after the release of the I1 mobile phone, they have announced their own smartphone development plans, and now after nearly a year, their respective smartphones have been basically completed, and have entered the promotion period。

Of course, Zhou Fangyuan can't watch them catch up, and it just so happens that the I2 mobile phone has also been made, so before Apple and Samsung, Yuanfang Technology withdrew from the second generation of smartphones.