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"HarmonyOS 2.0 fully enables full-scenario ecology, application cross-device, service transfer, fast direct access, visibility, and stronger security and privacy protection. On September 10th, we will be officially launched for large screens, watches and car equipment The beta version of HarmonyOS 2.0 is released for application developers; the version for mobile phones will be released in December of this year. Next year, Huawei’s smartphones will be fully upgraded to support Harmony 2.0."——Yu Chengdong

The electronic engineering album went to participate in the Huawei Developer Conference 2020 (HDC) held by Huawei in Songshan Lake. This incident itself is actually quite unusual. Because the Huawei HDC "Developer Conference" is more often held as an operating system manufacturer. Examples of such developer-oriented conferences are those of manufacturers such as Apple, Microsoft, and Google.
And this kind of developer conference is always more upper level, and the focus of the electronic engineering album is mainly on the lower level of the industry. This is indeed the first time we have been invited to participate in the Huawei Developer Conference.
With regard to the ecological construction of operating systems, technical forums, and even additional projects such as night runs and concerts, Huawei's developer conference also has this tune. Huawei's consumer business CEO Yu Chengdong also said in his keynote speech on the first day that "with the support of 1.8 million developers, the world's third-largest mobile application ecosystem broke ground."
But on the first day of the keynote speech, and in the past 1-2 years, Huawei’s HarmonyOS operating system and distributed technology construction have made Huawei’s developer conferences fundamentally different from traditional mobile platform developer conferences such as Apple and Google. , The core lies in the "distributed" technology-this also gives us a basis for participation.
Therefore, we can take a closer look at the HarmonyOS 2.0 and HMS Core 5.0 released by the Hongmeng operating system at the HDC conference this year. This article is long, here is a summary of the context of this article, you can read it selectively according to your preferences:

1. What is distributed technology?
2. What are the core improvements of Hongmeng 2.0 system?
Distributed soft bus
Distributed files and databases
Distributed security
3. Hongmeng Ecological Construction Plan
Hongmeng is open source: for southbound developers
One-time development, multi-terminal deployment: for northbound developers
4. What is HMS Core 5.0?
5. Summary: Huawei is maturing

Let's talk about distributed technology first
In June of this year, we wrote an article describing in detail Huawei's "distributed technology"-this technology has already begun to be applied in today's Huawei ecosystem, even if the Hongmeng operating system has not yet been fully rolled out. Huawei’s well-known functions such as multi-screen collaboration and one-touch transmission can all be considered as part of distributed technology. Obviously, the existing distributed ecosystem centered on mobile phones is partly based on the Android system. The Hongmeng system will carry it forward.
In the past two years, Huawei has proposed the "intelligent strategy for all scenarios" and the "1+8+N" three-tier structure. 1 stands for mobile phones; 8 stands for smart watches, PCs, tablets, speakers, earphones, glasses and other products; N stands for more smart hardware-such as smart homes, cars, etc. The core of this strategy is to realize the system linkage of different devices around mobile phones.

This follow-up concept may have some changes in Huawei's strategy. However, the general idea is the same: distributed ecological technology is actually the interconnection and intercommunication of different smart devices and collaboration with division of labor.
For example, documents in mobile phones can be directly viewed, edited, and saved on the PC, without even transferring the files to the PC-this scenario uses the ecological advantages of the PC in terms of productivity and the flexibility of the keyboard and mouse;
For example, routers are the first pass to guard network security, but the firewalls of general routers use simple static rule detection. Then use the AI ​​processing capabilities of mobile phones to achieve dynamic attack protection through AI algorithms, greatly improving the security performance of routers.
For another example, wearable devices can collect biometric data of the human body and monitor various indicators of the body; while the food processor at home can automatically make meal plans based on these indicators.
This kind of technology that connects different intelligent hardware in series and takes advantage of various hardware capabilities. In Huawei's words, it integrates hardware resources into a hardware pool through a "distributed soft bus." This is not only the hardware interconnection, but also the mutual utilization of various hardware resources.

In the previous article, we roughly enumerated the method of deploying this distributed capability in App development. The whole process is relatively simple. But to promote distributed technology, developers in two directions are actually involved.
They are southbound hardware developers-such as home appliances, sports cameras and various IoT device manufacturers; and northbound App developers (such as education apps, live broadcasts, online conference apps, etc.). As shown in FIG.
This is actually a major difference between Huawei’s current ecological layout and manufacturers such as Apple and Google, that is, southbound hardware developers account for a large proportion of them (although manufacturers such as Apple actually have home furnishing The layout of medical and health fields, but that still does not account for a large proportion of Apple's development.) Once hardware developers are involved, there will naturally be problems such as chips, modules, and development boards. This is also the basis for the electronic engineering album to discuss here.

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