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 of Apple Watch can generally reflect the current situation of wearable devices. For the time being, we will not discuss the complexity and simplicity 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 circle and 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 do this. Then expand to the whole body, an electronic product that can't be adapted. 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 refilled every day, is life time really so important? Unfortunately, even though geeks don't care about the hassle of charging, wearables 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 stress monitoring functions that were originally expected were removed, and the Apple Watch failed to fall into the “sports monitoringâ€. 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, compared with human inertia, the fear of death is more willing to pay. Counting the smart devices that are on fire, including blood glucose meters, skin tests, and air purifiers, are all 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 the Apple Watch feel the sense of change that some technical aspects are far from competitors? 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 wearable devices can be "woven" just as today's fabrics are woven into clothing. 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? First, the transparency and flexibility of graphene is the way in which wearable devices truly achieve wearability. As mentioned before, today's wearable devices have fatal flaws in adapting the human body structure, and only graphene that can be bent at will, or even arbitrarily changed, can be truly adapted to our human body. Second, the strong conductivity of graphene is one of the ways to solve the problem of battery life. Graphene batteries currently used in wearable devices have not yet appeared, but in the field of electric vehicles, there has been a wave of subversion. Previously, Tesla CEO Musk said that Tesla, which uses graphene, can quickly travel 805 kilometers, which is nearly 70% higher than the current energy density of ordinary batteries; the University of Corvado, Spain, said the first case Graphene polymer battery allows electric vehicles to travel up to 1000 kilometers, while charging time is less than 8 minutes. Charging can run 500-600 kilometers at a time. "Short battery life and long charging time" is one of the major ills facing wearable devices, and graphene clearly gives a way out. Third, more perfect sensing. Nowadays, the sensors we see are inevitably dependent on silicon wafers. Even if they are small, they can't avoid the feeling of hard state. As early as 2014, Irish scientists used graphene to invent a new wearable sensor for monitoring blood pressure, breathing, sudden infant death, and sleep breathing. Because it is the most worthy of collecting human body state information is the collection of human bioelectricity, which is conducted to the sensor through conductive rubber. The use of graphene to introduce graphene into the rubber can enhance the electrical conductivity, so that the sensor can be arbitrarily deformed and attached to the human body at will, and the data collection required for intelligence and quantification is no longer a difficult trade-off. Of course, many people are not optimistic about graphene, and more is the commercialization of graphene is far from scale. In the future of wearable devices, there is no product that has revolutionized the use of graphene. But I believe that the singularity of graphene has arrived. As predicted by Huawei Ren Zhengfei, graphene will subvert the silicon era for about ten years, and the author believes that before this, wearable devices must have changed first, the graphene era. The arrival must be a strong and lasting spring for wearables. My ah, å® technology, is not to do a few smart home products, with a trend, but hope to be a change and subversive. As an entrepreneur who wants to make a difference in the field of wearable devices, there should be the same courage to change Jobs, and dare to use cutting-edge technology that others dare not even dare to think, to make epoch-making products. 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