物联网食品安全区块链是什么,物联网与食品安全

物联网食品安全区块链是一种利用区块链技术来保障食品安全的技术，它可以将食品的原料、生产、流通、消费等全程记录在区块链上，以及消费者的反馈等信息，以此来实现食品安全的监管。下面我们就来介绍它的三个关键词：

物联网（Internet of Things，IoT）是一种新兴的通信技术，它可以将物理世界中的各种设备（如电视、洗衣机、汽车等）和虚拟世界中的软件系统连接起来，从而实现物理世界和虚拟世界之间的交互。物联网可以实现自动化控制，可以帮助企业更好地管理资源，提高生产效率，减少成本，同时也可以帮助消费者更好地了解和控制自己的设备。

食品安全是指食品中没有有害物质，不会对人体造成危害，符合国家有关法律法规的要求，具有营养和安全的质量要求。食品安全的核心是确保食品中没有有害物质，其中包括有毒有害物质、微生物污染物、残留农药、重金属等。因此，食品安全的保障需要从食物的生产、流通、销售等全过程进行控制，以确保食品的安全性。

区块链（Blockchain）是一种分布式数据库技术，它可以存储和管理数据，并且可以实现数据的安全传输。区块链的特点是去中心化、不可篡改、可追溯性强等，这使得它可以用于保护数据的安全性和完整性，同时也可以用于记录和管理金融交易等信息，从而提高效率和安全性。

以上就是物联网食品安全区块链的三个关键词：物联网、食品安全和区块链的介绍，以及它们如何应用于保障食品安全的介绍。物联网食品安全区块链技术的应用可以有效地保障食品安全，确保食品的安全性，提高食品安全的管理水平，保护消费者的权益，从而为人类健康和安全提供保障。

㈠ How blockchain protects food safety

In layman’s terms, blockchain = block + chain. Block refers to the form of data. Stored in the form of (using higher-level encryption technology and difficult to tamper with), the chain is a distributed storage technology. After the block information is stored on the chain, it will be distributed and stored in a chain-linked manner. Modifying a single node is invalid.

Using blockchain technology, food safety traceability can be carried out. This is an application scenario where blockchain technology is easier to implement and the technology is more mature. There are also many products that can be applied, including various common Commodities, high and low value-added products.
Blockchain technology can improve the situation of mutual distrust, effectively improve production relations, make it more transparent, and digitally present traceability results.
I am planning to develop a blockchain system. A friend introduced me to Guangzhou Xuanling Network Technology Co., Ltd. This is a company that does software development and blockchain system development. Their development cases are pretty good and the business content involved Quite a few, the team is pretty good. I feel that the working atmosphere in this type of company is comfortable, and I hope I can also meet a good team.

㈡ What is blockchain? In addition to food traceability, what other common applications does blockchain have?

Save production and distributor costs, use blockchain technology and material The Internet can realize automated data collection and storage, reducing labor investment and other equipment investment; in addition, the application of blockchain technology and the Internet of Things can help manufacturers and distributors reduce various expenditures and reduce the price of agricultural products, thereby realizing customer satisfaction. profit.

The key to blockchain technology is a distributed digital ledger that can store all types of information, including cryptocurrency transactions, NFT usage rights, and DeFi blocks chain.

Although any traditional database system can store this information, digital currency is unique in its complete blockchain technology. In contrast to systems maintained in core organizations by central administrators (such as Excel spreadsheets or bank database systems), blockchain databases have many identical copies stored on multiple computers that exist on the network, but these independent electronic Computers are called connection points.

The name "blockchain technology" is not a whim. Data ledgers are generally described as "chains" composed of separate "data blocks". When new data is imported into the network, a new "block" is created and added to the "chain," which involves all nodes updating their versions of the blockchain ledger so that they are the same.

㈢What are the applications of blockchain in real life

(1) Qulian

The underlying platform of Qulian blockchain is developed by Qulian Technology The domestic independent controllable blockchain underlying platform features high performance, high availability, scalability, easy operation and maintenance, strong privacy protection, hybrid storage and other features, and cooperates with the data sharing and secure computing platform BitXMesh and the blockchain open service platformFiLoop, supply chain finance platform FiloLink, certification service platform FiloInk, and smart contract security research and development platform MeshSec can better support industry applications such as enterprises, governments, and industry alliances, and promote value among multiple institutions. Efficient circulation.

(2) JD Chain

JDChain is an enterprise-level blockchain underlying framework independently developed by JD.com. Its birth marks the full launch of JD.com’s blockchain-based BaaS The construction of the "intelligent ecology" of the platform and the underlying chain of "JDChain". JD Zhizhen Chain Service Platform relies on the "one-click deployment" capability achieved through multiple optimizations to achieve leading second-level blockchain node deployment. In addition, it also has the core advantage of being open and compatible with mature applications such as multiple underlying and enterprise-level dynamic networking. The timely launch of JD Zhizhen Chain will effectively promote the large-scale implementation of enterprise-level blockchain applications in various industries and promote the construction of China and the global trust economy.

(3) Thunder Chain

ThunderChain is a blockchain application project independently developed by Xunlei’s Netcenter Technology. It has high concurrency of one million tps and second-level confirmation capabilities. . Based on the research and development of high-performance blockchain products, Xunlei has built the Xunlei Chain open platform to help enterprises or individual developers deploy smart contracts and easily implement products and services on the chain, making blockchain application development more convenient.

(4) Jingtong Chain

Jingtong Blockchain is the core underlying technology of the blockchain with independent intellectual property rights of Jingtong Technology. It is built based on blockchain technology. An effective decentralized Internet trading network that shares the ecology, adopts a hierarchical design (5 layers) of the underlying platform, and a multi-language smart contract system, and has implemented cross-chain functions. It has multi-level, all-round, one-stop service capabilities such as private chain, cloud chain, and alliance chain, and the layout of the industry and regional ecology has initially taken shape.

In addition to the above-mentioned blockchain products, there are also community-led LTC, Cosmos, IOTA, Nervos, NULS, MOAC, etc., and enterprise-led Ripple, Stellar, WeChat BCOS, XuperChain, Huawei, and Ping An , Wanxiang, Ant Financial, ZhongAn, Bubi, Matrix Yuan, Miyuan, Zhongxianbit, Complex Beauty, Shanghai Lianjing and many other blockchain products.

(3) Internet of Things Food Safety Blockchain Extended Reading:

Blockchain is far more than just a technology, it involves It is the spirit of "multi-party collaboration". In modern society, many things must rely on everyone's cooperation to achieve the effect of 1+1>2, but in cooperation, we need to try our best to avoid problems such as "information asymmetry".

Therefore, alliance members jointly keep accounts, share data, and make everything public to eliminate "information asymmetry" to protect everyone's interests and allow the business environment to develop healthily. If you do things honestly, you will get the benefits you deserve. If you cheat, you will naturallyEveryone knows it, and it is pointed out by thousands of people. Technology is the foundation that helps realize this model. This is the more important "blockchain thinking".

㈣ What exactly is blockchain and what are its uses

Recently, the word "blockchain" has appeared very frequently on the Internet. The word "blockchain" is very interesting. So what is "blockchain", how to explain "blockchain", and what kind of chain is "blockchain"?

If we want to know what “blockchain” is, we must first start with Satoshi Nakamoto.

In November 2008, Satoshi Nakamoto posted a research report on a secret cryptography review group, describing his new idea for electronic currency-Satoshi Nakamoto proposed : "I believe there is a currency that doesn't rely on credit, and I can't stop myself from thinking about it." Bitcoin was born.

Although we still don’t know who Satoshi Nakamoto is, we all know the famous Bitcoin and the recently popular word “blockchain”.

In professional terms, blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm, etc.

In the original English version of the Bitcoin white paper [2], the word blockchain does not actually appear, but chain of blocks is used. In the earliest Chinese translation of the Bitcoin white paper [3], chain of blocks was translated into blockchain.

What does it mean in human terms? In layman's terms, blockchain is a decentralized distributed ledger database.

Decentralization means removing the original data center.

Here is an example of decentralization: Alibaba’s servers support Alibaba’s daily data operations, including the Double Eleven that just passed. We were able to smoothly carry out flash sales of goods at zero o’clock. Largely thanks to the support of Alibaba servers.

All data generated by Alibaba’s daily activities are recorded on the server. So what will happen if Alibaba’s server encounters an accident? (For example, Alibaba's server was hit by a meteorite, causing the server to be damaged)

After the server is paralyzed, Alibaba's data will naturally be unable to be restored in time, which will result in Alibaba being unable to maintain daily operations in the short term. operations.

However, after adopting blockchain technology, a piece of data generated by Alibaba due to daily business will not only be recorded on Alibaba’s servers, but also on various servers around the world such as the Internet and Google. , so that even if Alibaba's servers encounter an accident, it will still not affect Alibaba's operation, and the data generated by Alibaba's daily activities will still be recorded inOn various servers around the world, these are the advantages and benefits brought by blockchain technology.

In other words, Ali's data was only recorded in Ali's server, and Ali's server was the center. Now every server in the world is synchronously recording the business that Ali has done, and Ali's server is the center. It is no longer the only center, this step achieves decentralization. The behavior of servers around the world recording Alibaba data simultaneously is called distributed accounting.

Now that we know what blockchain means, what kind of boundaries can blockchain bring to our lives? What fields may blockchain be used in in the future?

1. Blockchain technology is applied in the medical and health field. For example, Xiao Zhang’s family has a history of hereditary red-green color blindness. Xiao Zhang once went to Hospital A and had his red-green color blindness checked. Now Xiao Zhang is in City B and went to Hospital B for treatment. Now Hospital B can directly treat him in his own hospital. Xiao Zhang’s previous medical treatment status was found in the database, so Hospital B no longer needs to conduct repeated examinations on Xiao Zhang. This greatly saves medical resources for the hospital and saves medical expenses for repeated examinations for Xiao Zhang.

2. Blockchain technology is applied in the field of food safety. Nowadays, everyone is paying attention to food safety, and blockchain technology is applied to the field of food safety to carry out food traceability. First, we can label each vegetable and fruit with its own label, and then record the growth, maturity, pests and diseases of the vegetables and fruits in this label. The data in this tag can be simultaneously recorded in various data centers around the world through blockchain technology.

On the one hand, when people buy vegetables, they can directly check the growth status of the vegetables. On the other hand, when our country imports and exports vegetables, we can directly check the status of the imported and exported products. No more quarantine required.

㈤ What is the difference between the Internet of Things, blockchain, and big data?

What is the difference between the Internet of Things, blockchain, and big data
In the near future, the Internet of Things The number of devices will explode. It may be hundreds of billions or trillions. If such a huge network is still managed in a centralized networking mode, the investment and maintenance of the data center infrastructure should be incalculable. of.
In essence, big data is a small branch of the database, so this problem can be attributed to the relationship with the database. Database is actually a very old research field in software, the Internet world, and the IT world. From the initial file system to the ER model, it later led to the three major achievements of traditional databases that everyone knows: relational model, transaction processing, and query optimization. , until the rise of the NOSql database after the Internet became popular, database technology continued to develop and change, including semi-structured, text, voice and other unstructured data processing represented by XML, etc.

BlockThe relationship between the chain and the database actually seems to be such a relationship. From the evolution of database technology, we can find that it always comes from how to meet new business needs and then create new data processing technologies. For example, from the beginning of the file system, why do we need this model of ER? Because of the development of the financial industry, everyone has further needs for these fast accounting, high-concurrency data writing and access, which has led to The emergence and rapid development of the entity relationship model. Why did the NOSql database appear later? It is because the rapid development of the Internet has put forward higher and updated requirements for databases, so essentially we believe that the entire Internet is a large database.
Things are always evolving. Of course, after we solve the massive real-time data processing problems on the Internet through technologies such as NOSql database and cloud storage, the next problem must come, and that is how to solve it in a large-scale manner. Authenticity and validity of data.
For example, it may be related to our diet. From the issue of food and clothing at the beginning, to the issue of nutritional structure, and then to the food safety issue that everyone is concerned about, the development of the database is actually the same. When we pass the ER entity relationship Model, when the problems of data storage and data access can be well solved through the NOSql database, the next thing everyone should be concerned about and solve must be the issues of authenticity and validity.
So at this stage, these technologies represented by blockchain are definitely a new starting point and new requirements for data that are authentic, valid, unforgeable, and cannot be tampered with compared to the current database. . We can clearly feel that the integration trend of database and blockchain is actually very close and unstoppable, just like the movie and content production direction just mentioned began to develop in the direction of virtual reality and augmented reality; from the perspective of database , Blockchain is a new way of organizing data. We believe that big data and blockchain are two integrated.

㈥ Blockchain is applied to the chicken industry. Each chicken is equipped with a smart anklet. Do you dare to eat it with confidence?

Blockchain is applied to the chicken industry. Do you dare? Feel free to eat?

I recently read a piece of news that ZhongAn Technology, a subsidiary of ZhongAn Insurance, the first Internet insurance company, announced that it would apply blockchain to the chicken industry for the first time in China and support domestic blockchain startups. Mo Technology launches the "BuBu Chicken" project to provide consumers with more trustworthy food.

To be honest, food safety in China has always been questioned by many people, especially the previous incidents of "poisonous milk powder", "poisonous rice", and the recent fake vaccine incident, which have made everyone panic. , there is even news about making fake eggs on the Internet. To be honest, even a small egg or a chicken is not something we can do now.If you dare to eat, you are either afraid that the eggs are fake or that there is something wrong with the chicken feed.

But eggs and chicken are the four essential nutritional foods, can people not eat them? This is impossible. You can only try to buy some chickens that are said to be fed with high-quality feed or from some sellers who claim to be pheasants or native chickens. I see that the aunties around me buy chickens or eggs from Dongshi’s, which I believe is more expensive in terms of price, thinking that more expensive ones are always better.

Although the cost of free-range chickens is higher, now that living standards have improved, most consumers still like to pay for green and healthy food.

If we could fundamentally know the food that chickens eat and the vaccines that chickens use during their growth, wouldn’t everyone feel more at ease! As far as we know, the biggest features of blockchain are its non-tamperability and consensus mechanism. If blockchain is applied to the breeding industry, will it increase food safety? Can it increase consumers’ trust in food?

There is no doubt that using blockchain technology to track the growth data of chickens, with corresponding records in every link, will greatly increase consumer trust and satisfaction. Let’s take a look, can we apply blockchain technology to practice?

In Cha'an Town, Shou County, Anhui Province, there is a kind of chicken called "Bu Bu Chicken". Bubu Chicken Breeding integrates the Internet of Things, blockchain, artificial intelligence, and internationally patented anti-counterfeiting technology, and each chicken wears an Internet of Things identity card—a chicken tag. Chicken Tag can automatically collect chicken location and movement data and upload it to the blockchain in real time. In order to ensure that the chicken brand cannot be copied, the equipment adopts the internationally patented anti-counterfeiting technology provided by Wopu IoT, combined with chaos anti-counterfeiting, optical anti-counterfeiting and other technologies. One chicken, one brand, will be destroyed after disassembly. It is reported that the blockchain anti-counterfeiting label incorporates national secret-level algorithms, chaos principles, laser optics, mobile APP intelligent dynamic image scanning, cloud data comparison and other technologies, making it difficult to imitate, copy and recycle, ensuring the authenticity of goods from source to terminal. Uniqueness.

In addition, the blockchain chicken breeding experimental base of Team 6, Xinsheng Village, Shengci Town, Jingjiang City, Jiangsu Province is being put into practice. Hundreds of ecological free-range chickens forage freely, which is very different from the daily life of caged chickens. This is exactly the scene at the Zhongan Technology blockchain project farm. Here, every chicken wears an IoT ID card—— Chicken brand. It is reported that based on the full-ecological blockchain technology output by Zhongan Technology’s Anlian Cloud, the entire process of Bubu Chicken is recorded from chicks into the pen, to adult chickens, slaughtering and transportation, and to the user’s dining table.

Relevant personnel said: “The non-tampering characteristics of blockchain will help improve consumers’ trust in rural products, thereby realizing the high-end development of rural brands and changing the market position of farmers and rural brands. At the same time, it expandsthe boundaries of rural finance. ”

Many people are worried about whether someone will tamper with information. You don’t need to worry about this. Because to tamper with a piece of information, all the information on a blockchain needs to be changed, which costs too much material and financial resources. It’s very uneconomical. Currently, Zhongan Technology has signed contracts with more than 400 ecological chicken breeding bases across the country. It is understood that Zhongan Technology has reached agreements with farms in Anhui, Henan, Guizhou and other provinces and cities. In terms of cooperation intention, it is expected that 2,500 farms will be established across the country in the next three years, directly benefiting 15,000 farmers and indirectly helping 150,000 poor people. Calculated based on the average number of ecological free-range chickens raised in a farm of 30 acres, it is expected to In 2020, the annual sales volume of "BuBu Chicken" will reach 20 million.

Seeing this, do you think that the application of blockchain to the breeding industry will be very good, not only Seeing the growth process of chickens from childhood to adulthood also allows everyone to buy chickens and eggs with confidence, and no longer worry about buying sick chickens or fake eggs.

I hope that the blockchain will not be tampered with in the future and The characteristics of the consensus can be applied to the breeding and animal husbandry industries, which can help improve consumers' trust in rural products, thereby realizing high-end rural brands, changing the market position of farmers and rural brands, and at the same time expanding the development of rural finance. , increase people's income, I hope that day will come sooner.