[conclusions] :

1. Wireless charging technology will be popularized on a larger scale in the past two years through the promotion of offline stores such as starbucks.

Magnetic resonance technology will eventually replace magnetic induction technology as the standard of wireless charging technology, but the former technology needs to be greatly improved.

3. When the three wireless charging standards enter the vertical connection period, the competition and cooperation between all parties will become more intense.

Will tomorrow be better?

What do you fear most from going out? Cell phones have no electricity and cell phones have no Internet. With the popularization of Wifi, the problem of mobile network is being alleviated. But the mobile power sector has been slow to embrace significant technological innovation. Lithium-ion batteries in mobile phones are still not up to the speed at which people consume their power. The number of power plugs in public places is even more difficult to meet the charging needs of a large number of mobile devices. One of the best ideas is that if wireless charging becomes as ubiquitous as Wifi, people's phones could be saved.

Can this beautiful tomorrow really come? Let's go back to reality and see how far we are from the future.

What technology does wireless charging rely on?

Many people have this question: why can wireless charging lose power? As early as the 1830s, physicist Faraday discovered the relationship between magnetic fields and electric currents. The process of wireless charging is simply that the current is converted into a magnetic field, which is transmitted through the air and then converted into a current for the charging device.

The mainstream wireless charging technology in the consumer market includes two types: magnetic induction (MI) and magnetic resonance (MR).

To understand the difference between magnetic induction and magnetic resonance, forget the complex technical vocabulary:

1. The technology of magnetic induction is more mature, less expensive, more efficient and more popular. But may only be a transitional solution, because it requires power transmitting equipment and accept the equipment in close contact, is often a charging point can only charge a device, does not support multiple devices at the same time.

2. Magnetic resonance represents the real trend of the future, and only it can truly make wireless charging widely available. Because it can be wirelessly charged over long distances, a single charging point can charge multiple devices simultaneously. The problem with this technology today is that it is still immature, inefficient and experimental.

Second, the confusion of standards

Different charging technologies are used, and different standards of wireless charging technologies have emerged. There are three wireless charging technology standards in the world: WPC and PMA using magnetic induction technology and A4WP using magnetic resonance technology. What makes the wireless charging market confusing for manufacturers and users is how to judge and select so many technologies and standards. For WPC, PMA and A4WP the three wireless charging camp, they expected is that when the wireless charging popularization in the future, their own technology standard can truly accounted for the mainstream, hence the technology licensing fees. As a result, competition between each technical standard is fierce.

1.WPC (Wireless Power Consortium)

It is the world's first standardization organization to promote wireless charging technology. Its standard even has a proprietary name, Qi. Selling of built-in wireless charging function on the market of hardware products, basically is the Qi standard are used, the quantity is over one hundred, and is still rising, such as the nokia 920, the company the Nexus 4 and 5, 8 x to HTC, samsung Galaxy S4, etc.

In addition to Verizon, its members have numerous hardware manufacturers such as MOTOROLA, nokia, samsung electronics and HTC.

2.PMA (Power Matters Alliance)

The PMA standard, which also USES magnetic induction technology, is in line with the technical principles behind the WPC standard, but the standard, established in 2012, is the fastest wireless charging standard in North America.

Compared with the Qi of the WPC, the technology has little built-in use in mobile devices, but it has a big customer in the past two years: starbucks. The latest news is that starbucks will install more than 100,000 pma-enabled wireless charging points in 7, 500 U.S. coffee shops. Wireless charging can be achieved only if the user needs to install hardware accessories on the phone, such as an iPhone equipped with a wireless charging cellphone case. The use of coffee shops to promote PMA wireless charging devices could quickly expand the reach of the standard.

3.A4WP (The Alliance for Wireless Power)

The A4WP, which USES magnetic resonance technology, is a late entrant to the market and is more advanced in its adoption. The advantage of magnetic resonance technology is that it can charge multiple devices at the same time with a wide range of charges. It is convenient and free for users.

Intel, for example, showed a wireless charging table based on the A4WP technology at CES, where all devices can access power.

In fact, in order to adapt to the development of the future and common market do big, the difference between each technical standard boundaries are also more and more small, including WPC and PMA study mri, PMA and A4WP even signed a cooperation agreement technical standards compatible with each other.

For handset makers, samsung and HTC have all joined the three groups in an effort not to isolate a technology. Some third party in the middle of the equipment, seized the technology of the differences between as well as many mobile phones do not own the ability of wireless charging, started offering compatibility stronger special peripherals, such as domestic has begun to spread into the coffee shop Mivipower wireless charging equipment team.

Three, popularization needs to cross the N threshold

Although wireless charging has developed rapidly in the last two years, well-known chains, including starbucks, have begun to popularize it. But had to admit, the built-in wireless charging function of hardware devices on the market is still small, some through an external device to realize the function of wireless charging manufacturers in smaller market exploration. It will take a while for wireless charging to become as popular as wi-fi. The more optimistic forecasts are that it may not be until the middle of next year that more users will actually experience the benefits of wireless charging. The obstacles that need to be overcome in this process include the following aspects:

1. Persuade well-known manufacturers such as apple to join the wireless charging camp

Without the support of the mobile phone giants, the road to new technologies will remain difficult. The iPhone 6 has been rumored to have wireless charging capabilities since 2012, and speculation has resurfaced in the iPhone 6 rumors. This shows the industry's expectation of apple's entry.

Apple's hesitation is that the technology for wireless charging devices themselves is not yet mature, such as the complexity of charging a device on a one-to-one basis. Users often need additional equipment, which adds to the cost. But as wireless charging matures, it is possible that apple will reconsider its decision.

2. Improve the charging efficiency of magnetic resonance technology, reduce radiation quantity and technology cost

Although magnetic resonance technology represents the future of wireless charging technology, there are still many technological gaps in the technology. Charging, for example, is only 30 to 40 percent efficient, which means it takes a long time for a user to fully charge a device. Failure to reach safe limits is also a thorny problem. Users are often fearful of radiation hazards. Because of the technology's immaturity, magnetic resonance is more expensive to build, and even because of its size, it can't be built into a phone today.

3. Let users taste the sweet first with the help of offline merchants

Compared with the wireless charging in personal homes, the wireless charging in public places can give users a taste of the benefits first, which is also conducive to the popularization of technology. Mivipower starbucks, both abroad and domestic, from public places such as coffee shops, restaurants, the train began to pilot attempt, for merchants to meet the needs of users of wireless charging is a channel. Education users starting from education merchants will be considered by many wireless charging providers.

4. Let wireless charging truly achieve efficient one-to-many application

Just a power transmitter corresponds to a receiving device, which is still inefficient for the way users receive wireless charging. The real convenience of wireless charging is that a single transmitter allows multiple receivers to access power without being tied to space. The technical challenge is clearly higher. As some users say, wireless charging devices are not even as free as wired charging devices, and more people are willing to go the traditional way.