According to the research institute IHS report, global Bluetooth device shipments are expected to reach 3.1 billion units in 2015, and it is expected to reach 4.4 billion units by 2019. The application base of Bluetooth has been very solid, and the rise of healthcare-type wearable devices and smart home applications in the past two years will drive the growth of the Bluetooth market more strongly. Wearable technology is quickly becoming the focus of the next generation of information products. However, wearable technologies that are in the early stages of development still face many limitations and challenges. Especially when the market is optimistic that wearable devices will rewrite the consumer technology map, what obstacles will affect their growth?
"Now the mainstream Android, iOS and Windows Phone operating systems have native support for Bluetooth, which is a very big advantage of Bluetooth technology. Meanwhile, by 2018, 96% of mobile phones are expected to support low-power Bluetooth. This is also a very big advantage in Bluetooth technology ahead of other technologies." Gao Wensen, technical manager of the Bluetooth Technology Alliance (SIG) development project, said, "The two hottest key markets, healthcare wearables and smart homes. In the wireless connection technology adopted, compared with Wi-Fi, 802.15.4 and other technologies, the market share of Bluetooth in the past, present and future is far ahead, and with the addition of new features, the growth rate will continue. Continue to climb."
At present, the main application of wearable devices is sports bracelets, smart watches or medical related measuring devices, and the recent embarrassing is not a smart watch. James Bruce, global marketing director of the ARM mobile market, is also optimistic that smart watches will become the first choice for wearable devices. "Watch products will obviously be the main application of this technology. Now we are at the beginning of this growth market, Nordic Semiconductor According to Steel Ytterdal, Asia's director of sales and marketing, "With the rise and growth of wearables, Bluetooth Smart is already a mature technology for connecting 'My Items' to the Internet, for OEMs, developers and consumers. More new wireless connectivity possibilities. He said that Nodic's nRF51 IoT Software Development Kit (SDK) and Bluetooth Smart IPv6 technologies have won many customers' design choices, and have developed many innovative wearable products. More products will continue to be launched this year. .
“I think many wearable device manufacturers are going in the wrong direction. They are more concerned about the price of the chip, but in fact the flexibility of the chip is crucial. Good product quality and low cost are important, but perfect technical support is more important. "Steel Ytterdal explained, "China has a lot of start-ups now. These companies have strong technical backgrounds and a lot of innovations, and the demand climbs very fast after placing an order. So Nordic has invested a lot. Focus on helping these companies grow together, including adding more FAE technical support, opening an online developer forum, opening up more development code, etc., and treating each startup company that works with Nordic as a good partner. They have timely and comprehensive technical support.†In addition to wearable device applications, Steel Ytterdal believes that wireless charging and Beacon will also be the upcoming Bluetooth applications, especially in the Chinese market.
Some new developments in the field of smart Bluetooth
In the face of the rapid expansion and market opportunities mentioned above in the emerging markets, Bluetooth technology also has some technical features that must be overcome. "First, because IoT will lead to a significant increase in the number of connected devices, existing IPv4 support capabilities will be limited, networking The ability to be tested will also be tested, IPv6 technical support is imperative; secondly, portable mobile devices are more demanding on power consumption; security is also an important consideration after the Internet of Things and life are more closely integrated." Gao Wensen pointed out, "So the SIG released the new Bluetooth 4.2 specification at the end of 2014, mainly with three major aspects of the update:
Internet of Things support. As a standard for wireless network connections, Bluetooth plays a role in the Internet of Things. In order to better adapt to the development of IoT, SIG updated the specification of Bluetooth itself to support more new application scenarios of the Internet of Things. New features in security. Bluetooth 4.2 stipulates that only trusted terminals are connected, and user licenses are requested before connecting with unfamiliar terminals. This improvement can prevent users from inadvertently exposing their own location or leaving their own records, which will protect users' security and privacy. Great improvement. When using Bluetooth for wireless communication, data transmission can be faster, data connection can be faster, and update in a shorter time. In addition, the draft of the Bluetooth ad hoc network is also under review. It is expected to be submitted by the end of this year and the technical specifications will be released in the first half of next year. This is what everyone has been waiting for for a long time, and I believe that it has great significance for the entire wireless Internet ecosystem. â€
Gao Wensen said that the continuous updating of Bluetooth technology provides developers with more imagination and more and more Bluetooth developers. In order to let these new developers get to know Bluetooth development technology faster, SIG has created a free software. Bluetooth Developer Development Kit, a graphical application development and debugging tool based on the generic property profile GATT, effectively reduces Bluetooth learning time by up to 50%, making it easy for developers to get tutorials and code examples , quickly started to develop. At the same time, the toolkit can reduce development time by up to 70%, developers can use their drag and drop capabilities to find the Bluetooth protocol they need, quickly create their own projects, and solve for third parties (Bluetooth chips and module vendors) The program automatically generates code and tests for both virtual and physical devices.
“Bluetooth Intelligence is the fastest growing wireless market in history, and existing single-chip Bluetooth smart solutions are working to keep pace with innovation in this area, especially in applications such as wearables and IoT. We have been in December last year. We are beginning to offer IPv6 Bluetooth Smart Development Tools, and by continuously engaging and collaborating with developers, we are helping the industry create numerous market opportunities while accelerating IoT evolution.†Steel Ytterdal added, “In June this year, Nordic released the next generation of nRF52. A family of ultra-low-power wireless solutions that redefine the single-chip Bluetooth Smart category. It also features a unique on-chip NFC tag for user-friendly touch pairing and a new approach that is unmatched by any existing Bluetooth smart solution. Design flexibility levels. In the past, applications that required the processing power and performance of our chips required a two-chip solution, and now the nRF52 series is the first to uniquely combine breakthrough performance and power on a Bluetooth smart single chip. This single-chip product that is urgently needed in the Bluetooth smart market is believed to make Developers can make better use of Bluetooth smart products and applications."
KNLE2-63 TWO FUNCTION : MCB AND RCCB FUNCTIONS
leakage breaker is suitable for the leakage protection of the line of AC 50/60Hz, rated voltage single phase 240V, rated current up to 63A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will automatically cut off the power within 0.1s to protect human safety and prevent the accident due to the current leakage.
leakage breaker can protect against overload and short-circuit. It can be used to protect the line from being overloaded and short-circuited as wellas infrequent changeover of the line in normal situation. It complies with standard of IEC/EN61009-1 and GB16917.1.
KNLE2-63 Residual Current Circuit Breaker With Over Load Protection
KNLE2-63 Residual Current Circuit Breaker,Residual Current Circuit Breaker with Over Load Protection 1p,Residual Current Circuit Breaker with Over Load Protection 2p
Wenzhou Korlen Electric Appliances Co., Ltd. , https://www.korlenelectric.com