In June of this year, OFO and China Telecom and Huawei officially announced that the world’s first NB-IoT Internet of Things smart lock developed jointly by three parties officially started commercialization, marking the first commercial launch of NB-IoT technology. In addition, Dushiman, Haier and other big manufacturers have released smart lock products using NB-IoT technology, and more and more smart lock manufacturers will focus on this technology to become a new hot spot. So what exactly is NB-IoT? What is NB-IoT in the end? Why are more and more smart factory locks choosing it? This article sorts out the relevant knowledge, I believe that after reading it, there will be more of this new hot technology. Detailed understanding.
NB-IoT
NB-IoT is an emerging technology in the IoT space that supports low-power devices in the cellular data connection of the wide area network. It is also called low-power wide-area network (LPWA). Cellular-based narrow-band Internet of Things (NB-IoT) has become an important branch of the Internet of Everything. It has the characteristics of wide coverage, multiple connections, low speed, low cost, low power consumption, and excellent architecture. The NB-IOT uses the license band and can adopt three deployment modes: in-band, protection band, or independent carrier, and coexist with existing networks. NB-IoT is built on a cellular network and consumes only about 180 KHz frequency band. It can be deployed directly on GSM networks, UMTS networks or LTE networks to reduce deployment costs and achieve smooth upgrades. NB-IoT supports efficient connection of devices with long standby time and high network connection requirements. The battery life of NB-IoT devices can be increased to at least 10 years while providing very comprehensive indoor cellular data connection coverage. NB-IoT is the latest technology proposed by mainstream telecommunication operators and equipment vendors for the IoT market in the global standards organization 3GPP.
With the disappearance of demographic dividends and the “scissor difference†in traffic revenue, the Internet of Things has become a new source of revenue growth for operators. However, the telecom industry has been marketed for 10 years, but traditional 2G, 3G, and 4G networks do not meet the low-power and low-cost requirements of IoT devices. Most IoT devices have been connected Mainly using free technologies such as Wi-Fi and Bluetooth, it is difficult for operators to profit from it. Currently, there are about 4 billion Internet of Things terminals in the world, but only 230 million terminals are connected to the operator's mobile network, and operators account for less than 6% of the Internet of Things market.
Where is NB-IoT?
First, the wide coverage will provide improved indoor coverage. Under the same frequency band, NB-IoT gains 20 dB over the existing network, and the coverage area is increased by 100 times. Compared with traditional GSM, a base station can provide 10 times coverage;
The second is to have the ability to support massive connections. A NB-IoT 200KHz frequency sector can support 100,000 connections, support low latency sensitivity, ultra-low device cost, low device power consumption, and optimized network architecture;
The third is lower power consumption. The NB-IoT terminal module can use AA batteries for up to 10 years of standby time without charging.
The fourth is lower module cost. The single consecutive module does not exceed 5 US dollars. In the future, the single module cost will be reduced to less than two or three US dollars. If the cost falls below 1 US dollar, it will bring explosive growth.
NB-IoT application scenario
What technology is NB-IoT, why smart lock companies now choose it
I. Public Facilities - Alarm and Event Detectors
Safety has always been a very important aspect of human life. People always want to ensure family safety. Alarm and event detection will help to quickly notify the user of detected intrusions. The system can not only provide intelligent protection against intrusion, but also provide intelligent judgments for detected events, such as a sudden increase in home temperature or smoke may lead to fire outbreaks. Alarm and event detection will use indoor deployed device sensors to continuously communicate with the network. This usage scenario is very suitable for low bandwidth and low power consumption scenarios such as NB-IoT.
II. Smart Industry and Agriculture - Smart Family
In general, smart home applications are deployed on short-range technologies such as Z-Wave, Zigbee, but these communication technologies require home gateways. If the device is embedded with NB-IOT chipset, there will be amazing benefits. For example, through the improvement of big data analysis, management becomes more efficient. The IOT devices mainly include LPWA applications and are designed to provide intelligence to users through sensors and devices found in the local area.
Third, personal devices - wearable devices
In the past few years, the application of wearable devices around health and fitness has become the focus of the public, and has gradually become an industry that can create huge profits. It is estimated that there will be 177M wearable connection devices by 2018. In 2015, it is estimated that its market value is 250 million U.S. dollars, and it will rise to 1.6 billion U.S. dollars in 2022. The report published by Berg Insight also estimated that the number of globally connected wearable devices was 19 million in 2014, and this number will reach 168.2 million by 2019, an annual growth rate of 74.8%. JawBone, GoPro and Nike have already begun to enter the industry. And smartphone giants like Apple, Sony and Samsung are more associated with smart watches.
Why does today's smart lock companies choose it?
This technology is well suited for devices that generate low data traffic, which are battery-powered and typically have a long device life cycle. For example, Rongshida Smart Lock 708T, we will have more and more products using this technology in the future.
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