Abstract: Firstly, the basic situation and development trend of mobile smart wearable devices are given. The development status of mobile smart wearable devices in key technologies, industrial ecology and application fields is analyzed, and future research directions and suggestions are proposed.
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1. Basic situation and development trend of mobile smart wearable devices
1.1 Mobile smart wearable device concept and classification
The mobile smart wearable device is a new form of terminal device that can be directly worn on the body or integrated into the user's clothes, shoes and hats, and other hardware and hardware with certain computing power. At present, mobile smart wearable devices are mostly in the form of portable accessories that can connect terminals such as smart phones through short-distance communication technologies such as low-power Bluetooth, Wi-Fi, NFC, etc. The mainstream product forms include smart watches and wrists supported by wrists. Belts, bracelets and other products, head-based support for smart glasses, helmets, headbands and other products as well as smart clothing, accessories and other non-mainstream products.
Mobile smart wearable devices can be roughly classified into two categories according to their technical difficulties and functional characteristics. One is mobile smart wearable devices for sensor applications, such as the Fuelband smart wristband, the Jawbone Up smart bracelet, and the Fitbit Flex smart bracelet. These wearable devices mainly record and evaluate the user's movement and health status through the sensing device, and usually need to connect with terminal devices such as smart phones for data analysis, management, display and other applications; the other is support The mobile smart wearable device with the new human-computer interaction technology can realize the application of the new human-computer interaction technology in addition to the sensor-based application. For example, Pebble smart watches, Galaxy Gear smart watches, Google Glass smart glasses, etc., by supporting new human-computer interaction technologies such as new display technologies (such as flexible screens, micro-projection), voice interaction technologies (such as voice control), augmented reality technology, image recognition Technologies (such as gesture recognition, face recognition), etc., have functions similar to those of smart phones, usually used in conjunction with devices such as smart phones, simplifying the operation of smart phones, and integrating smart phone communication and entertainment functions into wearable devices. Expand on.
Mobile smart wearable devices can be used as a useful supplement to traditional smart terminals such as smart phones in the fields of information transmission and human perception. On the one hand, the wearable device extracts some functions on the smart phone and presents it to the user in a better interactive manner, so that the traditional intelligent terminal realizes the function extension in the new interactive mode, and the function extends to the smart watch and the smart glasses. The main representative can realize the functions of surfing, navigation and photographing of the wearable device. On the other hand, wearable devices inject elements that are not available in smartphones, innovate functions, and complement new functions with existing functions of traditional smart terminals. Functional innovations are represented by products such as smart bracelets and smart wristbands. The main features of the user's body are collected and organized for user movement and health data.
1.2 Mobile smart wearable device market competition pattern
Mobile smart wearable devices are still in their infancy, and many companies are starting to make efforts. Since 2013, the mobile smart wearable market has gradually warmed up, various types of products have emerged, and the application fields have expanded. However, the industry is still in its infancy, the product scale is limited, the software and hardware patterns are fragmented, and the consumer market has not yet started on a large scale. Many manufacturers have entered the field since 2013, including Google, Apple, Sony, Samsung, Pepple, Nike, Jawbone, Shanda Shell, Yingqu Technology and other domestic and foreign companies, has launched smart glasses, smart watches, smart bracelets, Smart shoes and other products. In 2014, mobile smart wearable devices once again became a hotspot for technology products. Samsung and Sony launched new products such as smart bracelets and new-generation smart watches in addition to the original smart watch products. Other ICT manufacturers have followed suit. Intel has released a variety of products, including smart watches, smart earphones, smart headsets, etc. Epson, Lumus and other smart glasses products, domestic Huawei, ZTE, Xiaomi, Baidu, Qihoo and other smart terminal manufacturers And Internet companies have also begun to follow the smart watches, smart bracelets, smart glasses and other product areas, more companies began to force mobile smart wearable devices.
Mobile smart wearable devices have not yet formed a situation similar to the oligopoly in the field of smart phones, showing diversified development. Wearable devices have various forms and fragmentation features. In addition to mainstream wearable products such as wristbands, watches and glasses, smart wearables, shoes, gloves, school bags, crutches, jewelry and other innovative wearable products are also emerging. Mobile smart wearable devices The application scenarios and scope of use are infiltrating into other industries such as clothing, home, car, security, etc., presenting new ideas for more diversified development. The advantages of each company's products for different forms are different, leading to a situation in which the market is divided. According to market data from analyst firm Canalys, in the first half of 2014, the global smart wristband sold 4.4 million pieces, while the smart watch was about 1.8 million pieces. The wristband and watch were the main products in the wearable device market. Early-stage startups such as Fitbit and Jawbone have certain advantages in the field of smart wristbands, occupying the top two in the smart wristband market. Samsung, a traditional ICT giant, is rapidly catching up in the field of smart watches, with more than the second quarter. The new product, its share began to exceed the startup Pebble, and Pebble and Sony jointly led the smart watch market.
2. Development status of key technologies of mobile smart wearable devices
Mobile smart wearable devices not only require chips and operating systems to meet small and low power requirements to meet device wearability and low power consumption; they also need to support more sensor technologies and new human-computer interaction technologies to sense the surrounding environment. And implement multiple modes of operation.
2.1 Mobile smart wearable device chip technology
The mobile smart wearable device chip is developing in a process of miniaturization and low power, and the chip presents diverse needs. Existing products can usually be divided into two platform architectures. The first one is born out of the intelligent terminal, with the existing mobile application processor (AP) as the core platform of the common hardware, powerful, can complete a series of multimedia content-based interactive functions such as augmented reality, the disadvantage is that the power consumption is high, The standby time is short; the other is combined with the low-power microcontroller (MCU) active in the industrial control field, based on embedded technology, which has the advantages of low power consumption and fast response, but for augmented reality, etc. The support of high-performance human-computer interaction technology is weak, and only simple functions such as monitoring, recording, and reminding can be completed. Industry giants such as Qualcomm, Intel, MTK and China Junzheng have successively launched customized chips for mobile smart wearable devices, which will accelerate the maturity of mobile smart wearable devices.
2.2 Mobile smart wearable device operating system technology
The mobile smart wearable device operating system is diversified and there are currently three different technical routes. The first is for a relatively simple function-based sensor-based operating system, usually using an embedded operating system, such as a more mature real-time operating system (RTOS), to complete fixed tasks in a single field; second, based on existing smart phone operating system for cutting Most smart watches, glasses and other products are developed based on Android, iOS, Tizen and other operating systems, tailoring for mobile phone operating system power consumption, video acceleration and 3D and other functions occupying a large number of system resources; For the wearable device's operating system, Google has released the Android Wear system platform for wearable devices, and the wearable device operating system landscape will usher in new changes.
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