1. What is a blockchain
basic concept
An innovative Internet application model that integrates distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other technologies to solve the problem of data centralization dependence and credibility.
From the concept of blockchain, which was born with the invention of Bitcoin in 2008, after more than 10 years of development, it has probably gone through 3 stages: 1.0 digital currency (Bitcoin), 2.0 smart contract (Ethereum), 3.0 alliance chain (electronic invoice) ).
According to the degree of publicity, it is divided into 3 categories: public chain (Bitcoin), alliance chain (Tencent electronic invoice, Ali blockchain prescription), and private chain.
Landing scene
One sentence summary: Except for industries such as finance, insurance and taxation, there are no real killer applications in other fields.
- Digital currency represented by Bitcoin
Recently, the market price is 1btc=$9160. Although the value is recognized globally, most countries/organizations have not recognized its legal status.
- Electronic invoice
On August 10, 2018, the Shenzhen Taxation Bureau of the State Administration of Taxation and Tencent jointly issued the country's first blockchain electronic invoice. As of December 2019, blockchain electronic invoices have covered more than 100 industries, with more than 5,300 connected companies, and more than 6 million blockchain electronic invoices have been issued, with a total invoice amount of 4 billion yuan.
Other scenes where the initial concepts such as food traceability and accounting revolution were very popular, due to inherent defects such as efficiency and cost, did not appear on a large scale.
Three major challenges/deficiencies
- Efficiency problems caused by decentralization
Alipay 20w transactions/sec, Bitcoin's 6-7 transactions/sec
- Resource inflation cost problem brought by distributed storage computing
The annual electricity consumption of Bitcoin mining is estimated to be about 48.37 terawatt hours (TW, trillion watt hours), surpassing Iraq, the 54th largest country in the world in electricity consumption.
- The trade-off between openness and credibility
The higher the degree of publicity, the higher the credibility, but the higher the cost, the lower the efficiency and data privacy; the lower the degree of publicity, the lower the credibility, and the further away from the goal of decentralization.
2. Blockchain and Internet of Things
Trusted edge computing nodes
With the development of the Internet of Things, a large number of infrastructure (storage, computing, network) deployed in traditional data centers and clouds will inevitably be pushed out of the computer room and redeployed on edge and terminal devices. The lack of physical barriers in the computer room and deployment outside the firewall will face serious security challenges. Blockchain can be used for the trust issue of edge computing & storage devices, and historical data is anti-tampering.
IoT data island glue
In the IoT environment, data and computing nodes may be controlled by different organizations that lack mutual trust, but the need for data exchange still exists; in this scenario, the blockchain can play a "data audit" role in such an environment , Thus becoming the "glue" for bonding IoT data islands.
The source of the terminal module chip is reliable
Using blockchain chips to replace traditional IoT devices will effectively avoid attacks from the terminal. Compared with traditional IoT chips, the blockchain chip performs data storage and signature on the terminal. During the transmission, the data is also Corresponding cryptographic processing will be carried out to ensure terminal data security and data ownership. In the data application stage, the signature of the terminal device is compared with the hash value on the chain to prevent the data source from being tampered with.
Recently, Ziguang Zhanrui has joined hands with Wanxiang Blockchain, Molian Technology, and Guanghetong to jointly initiate the integration and innovation of the Internet of Things + Blockchain, and realize the deep integration of hardware chips and blockchain at the bottom level, and contribute to the future intelligent digital society. Build a credible digital infrastructure.
Through cooperation, all parties have created a full-scene connection solution. Among them, Ziguang Zhanrui is responsible for building a secure and trusted environment at the bottom of the hardware, and opening up the connection between the hardware and blockchain applications to achieve secure data collection and communication.
Wanxiang Blockchain has rich experience and resource advantages in the development and application of blockchain technology. It can ensure the security and credibility of IoT data, protect privacy while sharing complete data, and realize the financialization and capitalization of data.
Molian Technology, through its self-developed blockchain application framework "BoAT" (Blockchain of AI Things), which is carried on the cellular Internet of Things platform, supports the trusted data of Internet of Things devices on the chain.
Fibocom has launched the world’s first Cat.1 blockchain module L610 based on Ziguang Zhanrui’s IoT chip platform Ivy 8910DM and Molian Technology’s BoAT blockchain application framework, which will empower smart agriculture, Internet of Vehicles and other industries with new value.
3. Possible landing scenarios of IoT platforms
Trusted edge node (cloud platform)
At present, cloud platforms are generally deployed in a single computer room. If the subsequent development considers improving the instant response speed of the network environment and local equipment in different regions, it may be necessary to deploy nearby edge service nodes in a distributed manner. Blockchain can be used to solve the problem of data credibility at edge nodes, and the data after decentralization will not be too concentrated, and the data security level can be improved.
But in fact, it is not only the blockchain that can achieve the above purpose. The cost of traditional encryption authentication and data synchronization technology should be lower, so the publicity significance is greater than the practical significance. If there is no edge deployment plan in the business for the time being, the priority is low.
As a link in the smart xx solution, compatible with access to third-party blockchains (private deployment)
Adapt to several mainstream blockchain open source framework protocols/algorithms to minimize customization. Design standardized access procedures and guide customers to plan design and bidding. The domestic policy drive of the blockchain is greater than the market drive, and some customers may just need it, and the priority is relatively high.
As a data center, provide a set of enterprise private chain solutions, enabling blockchain + Internet of Things (private deployment)
For private deployment, customers whose main data asset is device data may build a core data center based on the IoT platform. Then we can provide a set of blockchain private chain solutions (using an open source framework), so that the upper-level business system/third-party system can complete the "chain" action based on the SDK. That is, customers can directly use the capabilities provided by the IoT platform to build a blockchain private chain system. For policy-oriented customers, it may be a selling point .