In recent years, with the vigorous development of the Internet of things, a variety of electronic devices came into being. The application fields include smart home, smart loading device, smart vehicle system, smart manufacturing factory, smart city and hospital... But many electronic devices boast intelligent functions, which can transmit data wirelessly and perform super functional operations, However, they are also facing the problem of continuous power supply, and the contradiction between battery capacity and power supply of Internet of things equipment is becoming more and more obvious. Therefore, the technology of providing wireless energy transmission anytime and anywhere for Internet of things devices has attracted extensive attention of researchers.

What is the ultimate goal of the wireless charging industry? "The ultimate goal of the wireless charging industry is to realize wireless charging between devices at any time." Not limited to mobile phones, but all devices within the wireless charging standard, such as mobile phones, laptops, watches, headphones, cars, etc.

In fact, with the development of wireless charging technology, there are signs of wireless charging between devices at any time. It can be imagined that under the general trend of 5g and Internet of things in the future, as users have higher and higher requirements for the endurance of equipment, the demand for wireless charging between things anytime and anywhere will be greater and greater, and the trend and future of wireless charging will be more and more clear.

From ordinary suburban families to factory assembly lines, every corner of our life is undergoing the process of strengthening "intelligent" technology. Internet of things technology seems ubiquitous, but it is still a challenge to continuously power these devices. Unless this problem can be solved, many exciting innovative applications of Internet of things will not be realized.

It is estimated that by 2020, more than 30.7 billion internet of things devices will enter the market, which is almost twice that of 15.4 billion in 2015; However, it is less than half of the 75.4 billion in 2025. It is obviously not feasible to use the common alkaline battery and wired charger to power all Internet of things devices. Using wireless charging to power the wireless communication devices of the Internet of things will undoubtedly be the most effective. The biggest problem is, when will such a wireless remote charging scheme be available? In fact, the time required is not as far away as you think.

1. Future families should not stick to the "line"

Today, the number of devices that often need to replace batteries or use wires in family life has exceeded three digits. These may include sensors that support safety monitoring systems or even fire and carbon monoxide safety alarms. These technologies must be continuously powered to ensure human safety. If the Internet of things devices in consumers' homes do nearly double in the next five years, it is best to use wireless charging in order to avoid the scene of many wires winding around each wall socket in their homes.

From the economic point of view of housing ownership, this factor is particularly important. Nowadays, more and more Americans rent houses rather than buy them, so there are various restrictions on making their homes more modern. However, wireless charging allows homeowners to use Internet of things thermostats and doorbells to reduce electricity bills, improve security, and use the latest technology without touching the circuit wiring of the leased space.

2. Only wireless power management can enable industry 4.0

As long as the sensor of a specific function in the workflow is out of power, the whole plant may stop operation, and wireless charging may have a greater impact on the industrial field. Today, the average cost of industrial grade sensors is about $50, but the wiring cost of maintaining power supply may exceed $1000. Wired sensors usually have no standby power supply, so even if they can use low-power Bluetooth connection, it seems to have wireless characteristics. However, these sensors ultimately rely on imperfect circuits to keep on.

In such an environment setting, wireless power will help industry 4.0 really play, while helping enterprises simplify the cost of power management infrastructure. The backup system can be configured for wireless charging. Multiple wireless power transmitters can be placed within the range of each sensor. When one sensor fails, it can function as a backup transmitter.

In general, if the wireless charging function really benefits the public, it requires not only the continuous technical research of manufacturers, but also the infrastructure construction made by government departments for the popularization of wireless charging. It can be expected that there is still a long way to go before wireless charging is really popularized. However, "the road is blocked and long, and the line is coming". It will be a "wireless" world in the future.