5G is a technical term and the technical basis of a new generation of mobile communication networks; IOT is a conceptual term, which is the overall structure of a certain stage in the process of social informatization. The two seem unrelated, but they are inextricably linked: 5G provides solutions to the communication needs of the main scenarios of the Internet of Things, namely eMTC and uRLLC. 5G is paving the way for the Internet of Things bridges.
After entering 2018, there are endless news about the popularization of 5G. Many articles or reports speculate that in 2019 or 2020, there will be consumer-grade 5G devices available. IOT, as a concept proposed as early as the 1990s, has made slow progress in the real business environment because of the lack of infrastructure.
With reference to the changes brought by the launch of 3G and 4G to the Internet industry, the impact and opportunities brought by 5G will only be greater. Given the connection between 5G and IOT, will the arrival of 5G bring new changes to IOT? If it will. In what form will it appear?
This is the core issue that this article hopes to raise and verify, but the discussion and analysis of the concept is too vague. Therefore, the author tries to select some realistic objects and turn the abstract problem into a concrete problem: Will the arrival of 5G have an impact on Xiaomi's IOT ecology?
Xiaomi's IOT ecology and the possible changes 5G may bringIn addition to connecting smart computing devices like the Internet, IOT also has some unique scenarios, such as connecting a large number of smart home appliances and sensors in a home environment, or a large number of industrial robots and monitoring devices in a factory. The former requires network communication to be able to accommodate a large number of devices, while the latter emphasizes low latency and reliability of network communication. 5G's eMTC and uRLLC can meet the needs of these two scenarios respectively.
Among them, the home scene corresponding to eMTC is exactly the area where Xiaomi is actively deploying.
Xiaomi is one of the practitioners in the IOT industry. As early as 2014, it used the Xiaomi ecological chain to deploy IOT. Unlike other manufacturers, Xiaomi gathers a large number of companies related to IOT equipment more through the establishment of subsidiaries or investment holdings, and names their products with the prefix "Xiaomi" or "Mijia", and then uses Xiaomi's Fan culture is sold and collaborative experience is provided.
In terms of the layout of IOT, Xiaomi has done more resolutely, invested a lot, and gained a lot. According to the data presented at the first Xiaomi IOT Developer Conference on November 28, 2017, Xiaomi IoT platform has more than 85 million connected devices, more than 800 types of access devices, and more than 400 partners. Lei Jun announced that Xiaomi IoT has become the world's largest intelligent hardware IoT platform.
In addition to mobile phones and computers, there are currently hundreds of smart devices in dozens of categories on Xiaomi Mall, including bracelets, air purifiers, sweeping robots, routers, smart cameras, smart speakers, smart lights, etc. Some devices have gone through several years of market verification and product precipitation, and have accumulated a good user base.
However, in the most basic wireless network communication function of smart devices, these devices basically use the two traditional technologies of Wi-Fi and Bluetooth.
In the home scenario, the disadvantages of Wi-Fi are high power consumption and high cost; the disadvantages of Bluetooth are difficulty in networking and limited transmission distance. And they all have problems with signal coverage, stability, the number of connected devices at the same time, and security. At the same time, they are all local area networking technologies, and only with the help of a gateway can the device connect to the Internet.
It can be seen that these two technologies are not perfect solutions, and the actual network requirements are more complicated.
In a mature form, there will be several main smart terminals in the Internet of Things in the home scene, such as mobile phones, computers, TVs, etc., which are the backbone of the network, the control center and the interaction center, and require high-speed networks. Secondly, there will be a lot of smart hardware, ranging from refrigerators, washing machines, and air conditioners, to lights, sockets, and water cups. The amount of data transmitted is medium. Some devices require battery power. Finally, there are a large number of sensors that provide basic data such as light, temperature, and location. The amount of data transmitted is small, most of which require battery power and require low power consumption.
The eMTC in 5G can well meet the network requirements of the second and third types of devices with medium and low speeds, low power consumption, and high terminal capacity.
At present, in order to solve these complex network needs, Xiaomi has tried to use new technologies such as ZigBee, MESH, NB-IOT, on the one hand, it tries to make smart devices networked and connected through multiple technologies, and on the other hand, it has launched a variety of networks. And make these networks intercommunication multifunctional gateway. Xiaomi is using existing technology to make efforts to enable users to get a better home IOT experience.
But the changes brought about by 5G may go beyond the provision of new technologies. In the 3G era and the early 4G era, due to speed or tariff restrictions, most smartphone users need to be able to surf the Internet smoothly in a Wi-Fi environment. However, with the maturity of 4G technology and the continuous decline of traffic tariffs, many users have become accustomed to using traffic to surf the Internet all day long. In accordance with past development trends, the traffic in the 5G era will only be cheaper and there will be fewer restrictions on use.
The home LAN can only cover the inside of the home, but there are many remote connection requirements in actual use. When the mobile phone's demand for the LAN is weakened, the Internet of Things devices in the home can be directly connected to the Internet, avoiding the purchase of gateways and establishments. The trouble of the local area network.
In addition to Xiaomi's efforts, more changes may be taking place.
Will 5G have an impact on Xiaomi's IOT ecology?The previous article discussed Xiaomi’s past actions and the possibility of 5G in the future, trying to understand and analyze it from a technical level. What does this content have to do with the impact of 5G on Xiaomi?
Limited by technology, the current smart device experience has many problems such as connection and interaction, and some ideas are even more difficult to realize.
From the past to the present, Xiaomi has been actively exploring the application of new technologies in home IOT. Whether it is ZigBee low-power local area network, MESH self-organizing network technology, or NB-IOT, it is trying to solve the pain points in the home IOT scene. But what we have done so far is not good enough. After all, the update of technical standards is far more than just changing a chip. With the arrival of 5G, more technologies and stakeholders have joined this melee.
Technological progress will bring about a leap in product experience, which will bring about changes in usage habits and concepts, and ultimately lead to a trend of product changes. Similar to the mobile phone replacement wave from 3G to 4G, the arrival of 5G, in addition to the mobile phone replacement wave, is very likely to also trigger the trend of smart device replacement.
When new technologies can provide a more stable and convenient network experience, and at the same time have stronger compatibility and interoperability, device changes are destined to happen.
For enterprises, the wave of equipment renewal is both an opportunity and a challenge. Leaders and latecomers will be trapped by the wave, bringing everyone to the same starting line.
In this situation, only when the future development direction of IOT is fully in line with Xiaomi's strategic layout, Xiaomi can always maintain its leading position. Otherwise, Xiaomi's product accumulation and technology accumulation may not be able to play a role, and the market leadership position is no longer stable.
Therefore, the arrival of 5G is very likely to have an impact on Xiaomi's IOT ecology.
This impact is not due to Xiaomi’s strategy or execution problems, but Xiaomi’s need to face a more sinister market environment. It not only needs to face the challenges of countless competitors, but also needs to face the upstream and downstream penetration of the industry.
But for Xiaomi, this may be a blessing. If you want to grow into a stronger giant, Xiaomi needs a new war.
Single Phase Isolation Transformer
Generally included
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Characteristic
1. Anti interference effect: if the isolation transformer connected with Y/â–³ can prevent the transmission of some harmonics;2. Impedance transformation function: increase the system impedance, so that the protection device can be easily matched;
3. Function of stabilizing system voltage: for example, when starting heavy load equipment, reduce the impact on system voltage;
4. Function of preventing system grounding: when single-phase grounding occurs on the load side of the isolation transformer, it will not cause single-phase grounding of the whole system (above the Satons isolation transformer);
5. Reduce short circuit current: limit the short circuit current of the system when a short circuit accident occurs on the load side.
DG (B) /BK series single-phase isolation transformer can not only change the voltage, but also electrically isolate the input winding and output winding from each other, so as to avoid the danger caused by touching electrified body (or metal parts that may be electrified due to insulation damage) and ground at the same time. In addition, the isolation transformer also has the function of restraining various inter ferences.
Product performance
Input voltage 220v can be customized according to requirements, and output voltage 110v, 127v, 200v, 208v can be customized according to requirements Voltage stabilization accuracy ± 1% Output no-load current ≤ 2% Frequency 50hz/60hz Withstand voltage 2m Ω Waveform harmonic 1500v Voltage 1 min No breakdown and flash over Withstand voltage f Maximum temperature rise 150 ℃
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