Today, even those who don't understand technology know that IOT has very considerable prospects, and the development of the Internet of Things industry is not smooth, and a major key technology for the development of the industry is communication technology, because the Internet of Things is to be implemented is an object. Information exchange and communication, no communication technology, the Internet of Things is empty talk.
During the development of the Internet of Things industry, the Three During the three major communication technologies of NB-IOT, EMTC, LORA, each of which has a unique advantage in their respective application scenarios. IOT is fragmented, which requires compatibility and interoperability between agreements, although three technologies want to compete in each other, but future NB-IOT, EMTC, LORA need to be integrated, because the best technology must be inclusive .
First, NB-IOT
This is an emerging technology. The Chinese is called a narrow belt net. It is very suitable for the Internet of Things. The advantages of bandwidth and cost are obvious, and NB-IOT is constructed in a cellular network, consumes approximately 180 kHz bandwidth to directly deploy UMTS networks, LTE networks, and GSM networks, and easy to implement network upgrades. At the same time, relative to 4G network, it supports long standby time, high connection, and the battery life of the networked device is high.
Advantages of NB-IoT application scenario
It is because the NB-IOT technology is low, low power consumption, so it is widely used in positioning, water meters, and parking, such as a built-in NB-IOT module in sharing bicycles, and realizes Internet access. Intelligent retail, smart home, intelligent security and smart city, etc. are their future potential application scenarios.
Although NB-IOT is very good, but in China's development status is the lack of a unified open industrial platform, while standard, chip, network, and related application layer manufacturers are mainly small and medium-sized enterprises, but also need to grow their own alliance. Ecology.
Second, EMTC
Although Nb-IoT can meet a lot of application scenarios, the EMTC is the optimal solution in the scenario such as the reservoir, low-time delay. EMTC is evolved from the LTE protocol, which is China Mobile's communication protocol. Move To reduce costs, optimize the LTE protocol, allowing user equipment to support 1.4MHz radio frequency and baseband bandwidth, directly accessing the LTE network, because from lasting development, the Internet cost is a thing that must be considered.
EMTC is more suitable for these scenes
It is because the frequency is low and the agreement is simple, the cost of the EMTC chip may be lower than the cost of the NB-IoT chip, and the mobility of EMTC is better, which makes it better in the dynamic networking scenes than NB-IOT. EMTC is widely used in intelligent logistics, and there is an EMTC chip on Jingdong's unmanned truck. There are now many smart wear products, and there are also Mark of EMTC technology. In the future, EMTC technology may also be seen in the smart bus, smart elevator and other scenes.
EMTC and NB-IOT technology realize the Internet of Things is a completely different idea. The EMTC terminal work bandwidth is higher than that of NB-IOT terminals, and EMTC technology provides a terminal communication solution with high cost performance, this than B-IOT technology It is better to have a cost advantage.
Third, LPWAN (Lora)
It is known that LPWAN communication is known that LPWAN communications is a low-power wide area network, which is a wireless network technology that can communicate with a low bit rate. For many low-power requirements, low bit rates and other scenes, the Internet LPWAN technology is very good choice.
LPWAN technology can be used to build a private wireless sensing network, which can take advantage of the services and infrastructure provided by third parties, which makes it possible to directly use public sensors, saving a lot of hardware costs, which is very good for network deployment. A temptation.
At present, the most fireful LPWAN technology is Lora, LORA has a Chinese name called a distance radio. It is a major feature of the same power than other wireless modes, which realizes low-power and long-distance unity. It is a broad communication technology for prospects. The LORA network is mainly composed of four parts, which are base stations (or gateways), servers, Lora terminals and Internet of Things clouds. LORA features the application and server-side data bidirectional delivery.
The advantage of LORA is ultra-low power consumption and multi-channel data transmission. The system data capacity increases, and the gateway and terminal system support ranging and positioning. It is quantitative for location-sensitive applications.
It is reported that Ali said that it is necessary to connect 10 billion devices within the next five years. LORA is obvious in logistics, health care, intelligent environment, transportation and other fields, which is precisely the field of Alibaba layout, and it is no wonder that he wants to lay out.
The Internet of Things is not just an imaginary scene. It has become part of our lives. People through the management of technical monitoring, through communication technology networking, through the reduction of traffic accidents through the Internet of Things, these are not supported by networked communication technology, NB-IOT, EMTC, LORA technology have thousands of autumn, with the development of the Internet of Things industry, three will certainly play a greater role.
Our other product:
