Wearable devices are not good for graphene to bring spring breeze?

Graphene is coming, a spring breeze for wearables

The development of science and technology, especially the breakthrough of basic science, has always been the driving force of the industrial and even commercial revolution. People who are concerned about the frontiers of technology, or who are concerned about wearable devices, must be familiar with the term graphene. It must also be clear what graphene means for wearable devices, and whether it can bring wearable devices that have always been screaming. spring breeze?

When it comes to wearable devices, more or less all kinds of smart glasses represented by Google Glass, Samsung's various smart watches, Nike+ is a typical smart bracelet, and some large virtual reality developed by Oculus Rift. helmet. However, in fact, these products are far from entering the public life. Although they experienced a short-lived blowout in 2014, the first year of the wearable device, they quickly returned to calm. If we only consider the user side, we can find that there are two main points: the first is that the price is still expensive, and the products that look like tall on Google Glass, only those who are technically enthusiastic and have capital will patronize; the second is The user experience is not good. In fact, the shipment of smart bracelets is not low, but it is generally criticized and eventually abandoned by some users.

At the spring 2015 conference, Apple officially released the Apple Watch, which is different from the shock brought by the release of Apple products. This time it did not trigger screams. It was mostly half-open, surprise and disappointment. Although Apple can not be used as the best benchmark, it is enough to become a weather vane. Then the dissatisfaction suffered by Apple Watch can generally reflect the current situation of wearable devices. For the time being, we will not discuss the complexity and simplification of the functions, and summarize the pain of wearable devices from three technical levels.

First, the ergonomic fit of the shape. Apple's industrial design is naturally not to say, in the appearance is indeed enough to open a few streets of ordinary smart watches. However, those who are interested must remember the concept map of iWatch, which is a one-piece round wristband that carries a naturally curved display, but this is not really achieved. Most people like to wear round watches, especially women, which has nothing to do with the aesthetics of the square and the circle, but the inevitable construction of the human body. People who wear a square watch will have a feeling that it is tired, because there is always a section that can't fit on their skin, so there is a tight feeling. In addition, each person's wrist is different, especially children and adults, there is a big difference between men and women, a watch is also difficult to make users feel comfortable. The really good shape should be able to adapt to the ergonomics. For wearable devices, the most important display is to achieve this effect. At present, we have not seen products that have done this. Then expand to the whole body, an electronic product that cannot be self-adapted, and it can't really make the user feel natural.

Second, the power consumption cannot be avoided. “ At night, I’m charging for a good day,” Apple tried to make Apple Watch’s biggest drawbacks acceptable with its excellent copy. But for the wearer of wearable devices, this is a problem that cannot be avoided. I have done a smart watch product, trying to increase the battery capacity and various software-level power reduction algorithm design, and ultimately only guarantee 48 hours of battery life. We have also discussed that in the era when smartphones need to be recharged every day, is life time really so important? Unfortunately, even though geeks don't care about the hassle of charging, wearable device users are very concerned. For a user survey of battery life, the minimum acceptable one is one charge per week.

Third, there is no way to choose the sensor. This time Apple also made a tough choice. The blood pressure and pressure monitoring functions that were originally expected were removed, and the Apple Watch failed to fall into the “sports monitoring”. The two main themes of wearable devices are intelligence and quantification, both of which are inseparable from sensors, the collector of data. Basically, a product decides which sensor to use, and gives a clear limit to its function. The author has always believed that the real slogan of wearable devices is medical care . After all, the fear of death is more willing to pay than the inertia of human beings. Counting the smart devices that are on fire, including blood glucose meters, skin tests, and air purifiers, are actually highly relevant to human health. This is precisely the shortcoming of wearable devices, which is determined by the limitation that carriers such as smart watches and smart bracelets cannot carry more suitable sensors.

Apple's products have always been considered a benchmark in the corresponding field, and the various breakthrough technologies used in the iPhone really make Apple worthy of this honor. So why doesn't Apple Watch feel the sense of change that some technical aspects are far from competitors? Is it the three points mentioned above that are dead points? of course not.

A recent team of international scientists, including Monica Craciun, a professor at the University of Exeter in the UK, has succeeded in creating a new technology that embeds transparent, flexible graphene electrodes into fabrics commonly used in the textile industry. This breakthrough gives us hope to see the future of wearable devices in a flexible fit to the human body. It is conceivable that the wearable device can be "woven" just like the current fabric is woven into clothing.

Graphene is coming, a spring breeze for wearables

Wearable device for medical health monitoring management

Graphene is a new material that has been born for only ten years, but it has been receiving worldwide attention. Its pioneers have also won the Nobel Prize, and even now there is a trend of graphene replacing silicon. As an electrical original, graphene has three most advantageous features: transparent, flexible, and highly conductive. So what changes can graphene-based or improved electrical components bring to wearables?

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