Denso "Denso Tech Links TOKYO #12" holds the blockchain technology as a car

Traceability by embedding the QR code of the blockchain in the QR code

　The first lecture was "Tatsuya Okabe, a town development room information Tresabi Development Division," Initiatives on Blockchain in Denso. "

　At the beginning, Okabe introduced Denso's business area.From the in -vehicle area to the MAAS, logistics, food, and robot areas, I want to change from "Mono Business" to "Mono Business + Koto Business". Data is necessary for that, ensuring data safety.I am working on blockchain to do it. "

　First of all, what is a blockchain?Okabe emphasized that "blockchain is not a virtual currency."

　The blockchain advocated in 2008 as a technology supporting bitcoin.In recent years, it has been expanding in areas other than cryptocurrency as a technology that cannot be tampered with data.

　Blockchain consists of three technologies.A "hash chain" with the hash function of the previous block in the block, the "distributor book" that shares information, and the "consensus forming algorithm" for mining.

　Looking at the trends in the automotive industry, Okabe introduced that Volkswagen, Renault, BMW, Bosch, Ford, and Daimler are working on blockchain.

　Next, about the appearance of Denso aiming with a blockchain.

　Mr. Okabe introduced the social issues that Denso wants to solve, divided into two categories: traceability (traisabi) and data management.Traceability includes forced labor management, battery traisabi, CO2, product and product disguise, and HACCP (temperature control).In addition, there are sharing (individual contracts), insurance in the share car era, and tax revenue (micropayment) in the EV era.Of these, the traceability is given by Mr. Okabe, and the data management is explained in Mr. Xu's lecture.

　Mr. Okabe stated that Denso's aiming direction was to be a blockchain platform around the car and provide services around the car that was safe and secure.

　From here on about traceability.Traceability is, for example, where the raw materials of the hamburgers you are eating come from.

　Okabe said about technical issues and solutions for that.First, use the blockchain to protect the information on the treasabi from falsification.Use the QR code or barcode to how to match information and products and products.For how to add an existing distribution system to reduce the introduction cost, a special QR code and barcode will be introduced by using the existing distribution system.

　Next is the outline of the system that is actually made.For the company that makes ingredients, put the information of the company or the manufacturer in the blockchain, put the information and manufacturing history in the blockchain with a time stamp, print the hash value in a QR code, and put it on the material to process it.Send to the company.The processing company receives the QR code of each material and sends it to the blockchain with its own information.

　In addition, a special QR code barcode will be introduced to take advantage of the existing distribution supply chain system.This allows the existing systems to be used almost as they are by embedding the QR code of the blockchain in the QR code of the existing system and the free space of the barcode.The QR code is a technology developed by the Denso subsidiary Densowave.

　Finally, Mr. Okabe introduced the ideas of cold chains (temperature control systems) and carbon footprints as a traceability application.