What are the applications of NB-IOT？

　　 What are the applications of NB-IOT

　　LPWAN, Low Power Wide Area Network, Low Power Wide Area Network. There are two of its most important features in the name: low power consumption and wide coverage. Currently the more mainstream ones are: NB-IoT, LoRa, Sigfox, eMTC. The full name of NB-IoT is Narrow Band IoT, which is the narrowband Internet of Things (narrow bandwidth and slow speed).

　　 NB-IoT performs well in other aspects except speed.

　　 In terms of power consumption, NB-IoT sacrificed speed, but returned to lower power consumption. The simplified protocol and more suitable design have greatly increased the standby time of the terminal. Some NB terminals have a standby time of up to 10 years!

　　 In terms of signal coverage, NB-IoT has better coverage (20dB gain), even if your water meter is buried under the manhole cover, it will not affect signal transmission and reception.

　　 In terms of the number of connections, each cell can support 50,000 terminals, which is quite sturdy. Even if there are 50,000 heads of cattle squeezed in this community, each can be easily monitored. 

　　 The most important thing is the cost price. No matter how good you are, if the cost is high, the price is too expensive and it is useless. The cost of NB-IoT communication modules is very low, and each module is expected to be less than 5 dollars or even lower, which is conducive to mass purchase and use.

　　Nb-iot application

　　1, NB-IoT is applied to asset location tracking system

　　 With the in-depth development of informatization and various intelligent terminal equipment, the demand for personnel and asset positioning will continue to heat up. Applications in the location service field also show fragmented characteristics, such as asset inventory in smart parks, medical waste tracking and processing, and pet positioning.

　　 The birth of NB-IoT technology and its inherent low power consumption and deep coverage properties just make up for the many shortcomings of traditional communication technology, which can generate connections for locating assets tracking objects in hidden indoor areas or outdoor areas. NB-IoT technology, its low power consumption, wide coverage, low cost, small size and other characteristics make it an indispensable communication method in the field of asset tracking.

　　2, the application of NB-IoT in the fire protection system (smoke sensor)

　　 There are often fires in news reports. Every fire is accompanied by family destruction and every scene is shocking. We must increase fire protection awareness and use fire-fighting equipment rationally in order to minimize losses and injuries.

　　 The smoke sensor is the sentinel of the fire fighting system. It can detect smoke in real time. If the sensor detects that the smoke concentration exceeds the standard, it will send information to the background server, and activate alarm bells, broadcast speakers and other related equipment. The server will automatically push information to relevant personnel and departments to achieve Intelligent fire safety. In actual applications, in accordance with the fire protection requirements, the installation and distribution of smoke detectors are dense, which is inconvenient to wire and costly. 

　　 Using NB-IoT wireless smoke detectors can avoid wiring difficulties and greatly save installation costs; NB-IoT has a large number of connections, and the number of smoke detectors connected at the same time can reach more than 100,000, which can meet a large number of Smoke detectors are connected at the same time; NB-IoT has ultra-low power consumption and can work for ten years in standby mode, which greatly reduces the maintenance cost after installation; NB-IoT has super signal coverage and can cover indoors And the basement; NB-IoT is ultra-low cost, and the estimated price of the chip is as low as $1.

　　3, the application of NB-IoT in smart homes (smart locks)

With the popularity of the smart home industry in recent years, smart locks appear more and more frequently in life. At present, smart locks use non-mechanical keys as user identification technology. The mainstream technologies include proximity cards, fingerprint recognition, and passwords. Recognition, facial recognition, etc., greatly improve the security of the access control, but the premise of the above security is that when the power is on, if the smart lock is in the power off state, the smart lock is useless.

　　 1. In order to improve safety, it is necessary

　　2, the smart lock has a built-in battery

　　 3. Collect various basic data

　　4, transfer the data to the server

　　5. Automatically alert the user when abnormal data is collected