What are the NB-IoT chip models? Does NB-IoT module development also require a SIM card? What is the NB-IoT protocol standard? What are the application scenarios? Recent news about OFO's shared bicycles (that is, the small yellow car) and Huawei and China Telecom's cooperation in developing next-generation shared bicycle smart lock solutions have ignited the technology circle. Many bicycle smart lock developers and shared bicycle practitioners want to know Among the core features of the core technology NB-IoT chip, this article will introduce this Internet of things technology. NB-IoT (English name: Narrow Band Internet of Things) is a narrowband Internet of Things (IoT) technology based on cellular and is an important branch of the Internet of Everything. NB-IoT is an emerging Internet of Things technology. Due to features such as low power consumption, stable connection, low cost, and excellent architecture optimization, NB-IoT is a leader in the development of NB-IoT technology in China and is also attracting attention from the technology community. Currently, there are many chip manufacturers with NB-IoT technology in the world. In addition to Ericsson, Vodafone, Qualcomm and other communications giants, Huawei has also accelerated the deployment of NB-IoT chips. Currently, Huawei Hass has released the first NB-IoT chip. The NB-IoT standard was completed in June 2016 at 3GPP R13. Huawei Hass NB-IoT chip has the technical characteristics of narrow-band Internet of Things. Huawei Hass, Qualcomm, Intel, RDA, SIMON, MTK, TI, SEQUANS, MARVELL, NODRIC, ZTE etc. The NB-IoT chip vendors mainly come from GSM/LTE Modem companies and also have MCU companies like WiFi/BT. In the future, more NB-IoT chip manufacturers will intervene, and it is expected to enter price competition in Q3 2017. Because it is an emerging technology, chips with NB-IoT technology are rarely available on the market. It should be noted that the current development of NB-IoT chips still requires carrier network support and requires sim cards. That is, the NB-IoT module requires a network access license specified by each country. The SIM card and IMEI number need to be bound. The Mobile Communications Standardization Group 3GPP (Third Generation Partnership Project) announced on June 22, 2016 that it has completed the development of the NB-IoT (Narrow Band IoT) standard. Regarding the functions added to Release 13 (LTE Advanced Pro) when this standard was established, 3GPP has disclosed more than 150 change items, and this standard will be revised to a minimum within the scope of maintaining upward compatibility. In addition, the standardization of the technology this time includes three methods, in addition to NB-IoT, but also includes eMTC (enhanced Machine-Type Communications, enhanced machine type communications) and based on the GSM communication extended coverage GSM (Extended Coverage GSM, EC-GSM-IoT). NB-IoT technology is suitable for a variety of usage scenarios due to its own characteristics. 1. Public utilities: smart water meters, smart water services, smart gas meters, smart hot meters. 2, smart city: smart parking, smart lights, smart trash, smart pit covers. 3, consumer electronics: independent wearable devices, smart bicycles, chronic disease management systems, elderly children management. 4, equipment management: equipment status monitoring, white goods management, large public infrastructure, pipeline pipe safety monitoring. 5, smart building: environmental alarm system, central air conditioning supervision, elevator Internet of things, civil air defense space coverage. 6, command logistics: cold chain logistics, container tracking, tracking of fixed assets, financial asset tracking. 7, agriculture and the environment: agricultural Internet of things, animal husbandry, aquaculture, real-time air monitoring, real-time monitoring of water quality. 8, other applications: mobile payments, smart communities, smart homes, heritage conservation. It can be said that the application scenario of NB-IoT technology is very extensive, and it is the main development direction of the Internet of Things for a period of time in the future. Among them, the smart lock China Network Xiaobian must propose to share the bicycle smart lock and smart home, because it is closely related to the lock. NB-IoT technology can meet the requirements of low power consumption, long standby time, wide coverage, large capacity, suitable for all types of static business, and can establish a comprehensive Internet of things network system. The above is the basic features of the NB-IoT technology and the NB-IoT chip released by the China Smart Net China Smart Lock (reproduced, please indicate the source and link). For more information on the Internet of Things and smart home, please pay attention to the relevant sections of this site.
1.Application:Decoration Profile For Construction
OD
OD Tolerance
ID
Tolerance
Roundness
Straightness
Circular
run-out
φ16-20
±0.02
±0.02
0.01↓
0.015↓
0.05↓
φ20-30
±0.02
±0.02
0.01↓
0.015↓
0.05↓
φ30-50
±0.05
±0.05
0.02↓
0.020↓
0.08↓
φ50-80
±0.15
±0.10
0.05↓
0.025↓
0.10↓
7. Trade Terms Aluminum Decoration Profile For Construction Aluminum Decoration Profile For Construction,Aluminum Decoration Profile,Aluminum Construction Profile,Aluminum Building Profile Changzhou YiFei Machinery Co., Ltd. , https://www.yifeialu.com
2.Dimension: Customized dimension, OEM & ODM
3.Material: A6063, A6061, A3003 and other series alu alloy
4.Suface treatment: Anodizing, polishing, turning ,power coating, mill finish etc
5.Equipment: CNC ,extruding machine, cold drawn machine, heating oven, straightening machine, cutting machine
6. STANDARD PACKING:Wooden case/carton
1. Payment: 30% T/T in advance, 70% balance pay before delivery. L/C at sight.
2. Delivery time: 20 days after deposit receiverd. If opening mould, plus 7-10 days.
3. Trade Term can be chosen depending on your requirements.
4. FOB Port: Shanghai
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