Internet of Things (IOT) is another new wave of information in the world information industry after computers, the Internet and mobile communications networks. The information technology is more comprehensive and in-depth applied to daily life and production services. It is a major upgrade and development of information systems Great application prospects. How to seize the opportunity of Internet of Things, expand the field of industry, upgrade the technology level, expand the space for development, and realize the effective integration of Internet of Things and security industry are the realistic problems that every security company needs to face and urgently solve.
Speaking of Internet of Things Security, we first thought may be the first RFID. Indeed, RFID has great applications in the security industry as one of the Internet of Things technologies, especially in applications such as intelligent transportation, smart parking, smart access control, radio frequency security and other products and solutions. But in fact, with the development of Internet of Things technology, the concept of Internet of Things has already surpassed RFID.
On November 17, 2005, at the World Summit on the Information Society (WSIS) in Tunis, the International Telecommunication Union (ITU) released the ITU Internet Report 2005: Internet of Things, citing the concept of "Internet of things." The definition and scope of the Internet of Things have changed, and the coverage has been greatly expanded, not just the Internet of things based on RFID technology. RFID technology is the identification of objects, mainly for the logistics network, convenient information systems to identify and track objects. However, the Internet of Things is not only to identify objects, but also to allow objects to have networking capabilities and realize the interconnection of all things.
How is the internet of things now connected?
Currently, IOT devices mainly use short-range communication technologies with a transmission distance of less than 100m, such as Wifi and Bluetooth. So the current intelligent hardware or Internet of Things devices generally how to achieve networking? Now there are many networking technologies available, mainly short-range wireless communication technologies, including Bluetooth, Wifi, Zigbee, ANT + and so on. Among them Zigbee is generally used in industry, ANT + is used in sport field, and bluetooth and Wifi are the most used communication means of the household IoT device or intellectual hardware.
ZigBee protocol-based smart home system requires a gateway device for protocol conversion, can be interconnected with the user terminal Many smart wearable devices are synchronized to the phone through Bluetooth data, and then upload the data to the cloud through the phone; Wifi-based devices through Wifi Routers to synchronize data to the cloud; devices based on other networking technologies, such as Zigbee, typically require a gateway for protocol conversion to connect to the user's handset or computer or synchronize data to the cloud.
What are the problems that restrict the widespread use of smart wearable devices?
Current smart wearable products rely on smartphones for syncing data to the cloud. Widespread application of smart wearable devices, the current two technical limitations, one cover, and second, power consumption. The former restricts the networking capabilities of smart wearable devices, the latter restricting the battery life.
If the smart wearable device for greater application prospects, an important aspect is to get rid of the dependence on the phone, you can access anytime, anywhere in the indoor or outdoor environment. This concept will soon become a reality. With the upcoming era of the Internet of Things driven by the LPWA technology (Low Power Wide Area Technology), massive IoT devices or smart hardware will be connected to the Internet immediately.
Why is LPWA technology so important?
For example, now that our smartphones have access to the mobile Internet anytime, anywhere, our smartwatches are not. Smartphones can be connected to the Internet via WiFi or 3G / 4G mobile cellular networks, which are generally not supported by the wristbands, for reasons of power consumption. Most IoT devices, especially the wearable devices, have very limited battery capacity and must work in a low-power mode. Otherwise, battery life becomes a problem. This is why Bluetooth BLE is the common communication technology of smart wearable devices. Even WiFi Too it charges.
LPWA will be the key technology in the Internet of Things era
LPWA technology is proposed to solve the problem of low power consumption of long-distance communication, to add low-power, low-speed and long-distance communication mode to the existing mobile communication network, so that any network coverage can be Let IoT devices or smart hardware access the network anytime, anywhere.
LPWA technology itself is not a single technology, but a generic term for technology. There are already some LPWA solutions, such as Lora, Sigfox, etc., but these solutions are not fully recognized, especially the adoption of the International Organization for Standardization (such as ITU-T, 3GPP). For such a technology demand as LPWA, 3GPP has put forward its own solution in its own standard, that is, the recently-focused eMTC and NB-IoT technologies.
Both China Telecom and China Unicom have already announced plans to begin piloting the NB-IoT, which China Telecom has announced plans to build the world's most widely used NB-IoT network by 2017. I believe in China, LPWA-based IoT applications will soon enter large-scale commercial.
Once the eMTC and NB-IoT networks are put into commercial use, there will inevitably be a large number of new IoT products or smart hardware. It can be foreseen that smart wearable devices no longer need to rely on smartphones to access the network. They can directly use the LPWA technology to synchronize data to the cloud .
Mobile Internet now is the main body of the phone, or that people, and when the mobile Internet into the Internet of Things era, people and things will be connected to the network. Smart wearable devices can access the network anytime, anywhere with LPWA technology and have the same battery life you expect, and every one of us is really going full online.
Internet of Things, we are about to witness the arrival of a new Internet age.
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