In recent years, low-power wide-area LPWAN (Low-Power Wide-Area Network) technologies such as LORAN, Sigfox, NB-IoT, and eMTC are in the ascendant, which has greatly promoted the development of the Internet of Things market. If you compare LPWAN to the crown of today's Internet of Things wireless communication technology, then NB-IoT is undoubtedly the most eye-catching jewel in the crown. Since being established as a global standard by 3GPP in 2016, NB-IoT has become synonymous with licensed spectrum LPWAN technology under the full support of communication equipment giants and major operators around the world, in smart cities, smart meters, smart logistics, etc. The field has been widely used. There is a network of people as an expert in industrial Internet of Things communication technology. The focus on NB-IoT has been long-standing. Its professional module company, Shanghai Wenheng Electronic Technology Co., Ltd., has been actively researched and launched in the second half of 2017 based on Huawei Boudica. Chip series NB-IoT module - NB73 and other products. As a boutique that has been carefully polished by Shanghai, this series of NB-IoT modules has made a difference in the industry with the following characteristics: 1. Make things simple: easy to use NB-IoT is essentially a large connection technology. Helping customers quickly build connections from the end to the cloud, to achieve simple and easy access to the network is the initial development of the NB-IoT module. Based on this, more than a dozen stable R&D engineers are working day and night, leaving a variety of heavy work such as complex RF circuit design, transmission protocol analysis, cloud interaction and operation management platform construction to ensure that customers get a A simple, easy-to-use, mature module that can be quickly productized. On the hardware, it supports the design of on-board antenna, built-in SIM card, etc., and reserves the eSIM interface to help customers simplify the circuit design of the product as much as possible. In software, the application scenario of the end-to-cloud is considered from the perspective of the customer, providing transparent transmission UDP mode, providing CoAP communication components, and strict retransmission mechanism to ensure reliable data transmission. More transparent cloud services, allowing customers to use NB-IoT to build the system with zero programming. In addition, we have also developed a tariff management platform, an IP management platform, and a data management platform to truly provide a “nanny-type + full lifecycle†operation and maintenance management for customers' terminal applications. 2. Stable and reliable: high quality (1) Hardware design: NB73 series modules adopt Huawei Hisilicon industrial grade chip platform, peripheral components are selected industrial grade specifications, high-precision crystal oscillator and RF components ensure the stability of the module RF, 6-layer laser hole PCB board with the best Power and RF routing are processed to ensure optimal performance of the module. (2) Software design: relying on the deep software development of the Internet of Things in the Internet of Things for many years, to create a refined and reliable software function mode, through the in-depth understanding of the risks of various industry application scenarios, function optimization and pre-processing, Ensure that the module runs stably and reliably and never crashes. (3) Stability in the network: The NB-IoT module is still to be installed on the carrier's network, and the adaptation to the carrier network is crucial. If you want to do something good, you should first use it. Before the NB73 series modules were launched, they passed the strict network test of operators and the network compatibility test with different base station equipment manufacturers to ensure that customers can use NB-IoT network coverage whenever they use them. It can stably access the network for reliable data transmission. 3. Economical: low cost "The wine is also afraid of the deep alley." A good NB-IoT module also needs good carrier network coverage as a support to be truly useful. Moreover, the actual use cost of NB-IoT's low-power, long-life application design, which is the economic account, is a more important consideration for customers. China Telecom's NB-IoT network is the earliest and most comprehensive carrier network in China. In order to promote the rapid development and landing of the NB-IoT industry, there is a strategic cooperation between People Online and China Telecom. With the NB-IoT network of China Telecom throughout the country, the “Stable NB-IoT Module + Telecom SIM Card†supporting sales model is launched. Calculate the economic account for the customer, and provide unprecedented tariffs from 1st, 3rd, 5th, and 8th years to truly help customers reduce the actual cost of use. 4. The NB-IoT series is rich and varied: there are many types of modules and DTUs to choose from; NB-IoT DTU (USR-NB700): DTU based on NB73 module, with RS232 and RS485 interface, wide voltage supply; NB-IoT module (WH-NB75): A pin-type module developed based on the NB73 module, which supports wide voltage power supply, plug and play; NB-IoT module (WH-NB73): NB-IoT module that can support the built-in antenna and built-in SIM card; NB-IoT module (WH-NB71): The ultra-small NB-IoT module is developed for small-volume embedded development. SHAOXING COLORBEE PLASTIC CO.,LTD , https://www.colorbeephoto.com
