The Internet of Things (IoT) is an important part of the new generation of information technology and an important stage of development in the era of “informationization". As the name suggests, IoT is the Internet of Things.
This has two meanings:
First, the core and foundation of the Internet of Things is still the Internet, cellular module which is a network based on the expansion and extension of the Internet.
Second, its clients extend and extend to any object and exchange information and communication, that is, between objects.
The Internet of Things can be widely used in the convergence of enterprise networks through artificial intelligence perception,lte module recognition system technology and pervasive computing and other communication sensing data technology, and is therefore known as the third wave of the continuous development of the world’s economic information service industry following the computer and the Internet.
About LPWAN Technology
Low Power Wide Area Network of Things (Lpwan) is optimized for M2M communication scenarios in Iot applications, battery-powered, low rate, ultra-low power consumption, low duty cycle, and covered by a star network, remote wireless network communication technology supports a single node with a maximum coverage of up to 100 km for cellular convergence gateways.
This technology is a revolutionary international IoT access technology in recent years, characterized by long distance, low power consumption and low operation and maintenance costs. Compared with existing technologies such as WiFi, Bluetooth, and ZigBee, LPWAN truly realizes the low-cost full coverage of IoT in large areas.
At present, there is no unified standard for LPWAN technology, Sigfox, Lora, TELENSA, PTC, etc. are typical LPWAN technologies. Compared with 2G/3G/4G/5G LTE-MTC networks, LPWAN is a relative concept, and there is no clear and strict definition for it in the industry. In this paper, we will discuss the development prospect of LPWAN technology through the application scenarios of existing LPWAN technology.
Origin and Development of LPWAN Technology
In the development of LPWAN technology appeared some before, communication network technology enterprises have been through a variety of forms of diverse, short distance wifi, bluetooth, zigbee, etc., long distance 2G, 3G, 4G, etc., but if we put these data wireless communication information technology personnel in accordance with the power consumption and the transmission distance of these two dimensions to come, then you can find in the power consumption of low distance in the world range of Technology is still lacking, and the emergence of LPWAN technology just to make up for this shortcoming.
Now the mainstream LPWAN technologies are NB-IoT, eMTC, LoRa:
NB-IoT is a new technology in the field of IoT that supports cellular data connectivity for low-power devices in a wide area network, also known as Low Power Wide Area Network (LPWAN).NB-IoT supports efficient connectivity for devices that have a long standby time and require a high level of network connectivity. It is said that the battery life of NB-IoT devices can be increased to at least 10 years and also provides very comprehensive coverage of indoor cellular data connections.
EMTC is an application scenario for the Internet of Things (iot) with ultra-high reliability and low latency. in october 2016, mobile partnered with a number of renowned vendors to conduct lab testing of commercial products based on 3GPP Narrowband IoT (NB-IOT) and Enhanced Mechanical Telecommunication (EMTC) standards, which will help to drive the rapid maturation of cellular IoT products and promote IoT in the development.
LoRa, one of the LPWAN communication technologies, is an ultra-long-range wireless transmission solution based on spread spectrum technology adopted and promoted by U.S.-based Semtech. The scheme changes the previous compromise between transmission distance and power consumption, providing users with a simple system that can realize long distance, long range and large capacity, which in turn extends the sensor network. Currently, LoRa mainly works in global free bands, including 433, 868 and 915 MHz.LoRa technology is characterized by long range, low power consumption (long range), multiple nodes and low cost.
Related articles:
Everything you need to know about 5G small cell deployments
Every day using the “cellular network", the origin of the cellular you really know?
無意惹紅顏 