Our tricot machines are available in a number of different versions. Depending on the intended end-use and fabric construction, you can choose between machines equipped with two, three or four guide bars. Specialist machines are also available for producing stretch and non-stretch fabrics and we also offer flexible, allround machines. Warp Knitting Machine,circular warp knitting machine,Karl Mayer warp knitting machine,high-speed warp knitting machines,Karl Mayer Tianchi Changzhou Textile Machinery Co., Ltd , https://www.tcloom.com
Why is NB-IoT so popular?
NB-IoT has become more and more popular with the increasing popularity of the Internet of Things concept. After the NB-IoT commercial first year of 2017, it has become a very mature product. So where is NB-IoT sacred? Why did he become the darling of the public?
What exactly is NB-IoT? Is it an abbreviation for "Niubility Internet of Thing"? Although he is really a cow, it is not really a simple and crude abbreviation. NB-IoT refers to the Narrow Band-Internet of Things technology. It is an emerging technology in the IoT field that supports low-power devices in the WAN cellular data connection, also known as low-power wide area network (LPWA). In fact, IoT devices can be divided into three types.
1. No mobility, large data volume (upstream), wideband, such as cell monitoring;
2. Mobility is strong, need to perform frequent switching, small amount of data, such as fleet tracking management;
3. No mobility, small amount of data, not sensitive to delay, such as smart meter reading.
NB-IoT advantage features
NB-IoT is designed for the third application, and its main advantages are obvious.
Strong Link: In the case of the same base station, NB-IoT can provide 50-100 times more access than existing wireless technologies. One sector can support 100,000 connections, supporting low latency sensitivity, ultra-low device cost, low device power consumption, and optimized network architecture. In the future IoT environment, smart devices that need to be accessed are probably more than now, and the number of links reserved leaves room for future development.
High coverage: NB-IoT has strong indoor coverage capability and 20dB gain over LTE, which is equivalent to an increase of 100 times coverage area. China's vast land undoubtedly has many application scenarios that require such broad coverage. Whether it is the square of the city or the vast fields of the countryside. There are opportunities for it to show its strengths.
Low power consumption: Low power consumption is an important indicator for IoT applications. NB-IoT focuses on small data volume and small rate applications. Therefore, the power consumption of NB-IoT devices can be very small, and the battery life can be changed from the past. It has been greatly improved in a few months to several years. Everyone has heard about the description of "Battery can be used for ten years" often mentioned in NB-IoT publicity. In many applications, this is a true reflection of NB-IoT's low energy consumption.
Low cost: Compared with LoRa, NB-IoT does not need to re-build the network, and the RF and antenna are basically multiplexed. Taking China Mobile as an example, there is a relatively wide frequency band in 900MHZ. Only a part of the 2G frequency band needs to be cleared, and the simultaneous deployment of LTE and NB-IoT can be directly performed. Is there a better thing than a ready-made base station and network?
Compared with other forms of wireless communication, the specific parameters of NB-IoT are as follows:
ZLG Zhiyuan Electronics NB-IoT Module
The ZM7100 is a high-performance, low-power NB-IoT wireless communication module designed with ZTE Microelectronics RoseFinch7100 chip to support telecom and mobile bands. The module is only 16×18mm in size and is the smallest standard size. It can meet the needs of terminal equipment for small-size modules. Currently, it supports mainstream OneNet cloud, Tianyi cloud and Alibaba Cloud as well as user private cloud. The ZM7100 is packaged in LCC+LGA to provide customers with reliable connection methods and easy mass production. The SMT patch technology enables the ZM7100 to have high reliability and meet the needs of applications in a variety of environments. The ZM7100 is now open for sample application, please contact Zhiyuan Electronics. The features of this module are as follows: PSM mode consumes only 2uA, the industry's first secure NB-IoT solution, 16×18mm ultra-small size, OneNET, Tianyi cloud, Alibaba Cloud, ZWS IoT cloud platform access.