WO2024042692A1

WO2024042692A1 - System for managing three-dimensional data of components

Info

Publication number: WO2024042692A1
Application number: PCT/JP2022/032131
Authority: WO
Inventors: 泰夫室▲崎▼
Original assignee: 株式会社Star Craft
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2024-02-29

Abstract

[Problem] The present invention addresses the problem of providing an effective system in which 3D-printer-related technology such as a 3D scanner or a 3D printer and blockchain technology are combined, thereby preventing three-dimensional data of components from being falsified or stolen. [Solution] This system for managing three-dimensional data of components is configured from a system comprising a plurality of computer terminals that are connected by P2P connection via a first network, and a three-dimensional data processing device that is connected via a second network, which is connected to each of the plurality of computer terminals, the system being such that, in the three-dimensional data processing device: three-dimensional data and related information are generated; the three-dimensional data and the related information are transmitted to, and preserved in, the computer terminals via the second network; the hash value of an immediately preceding block pertaining to a component, the hash value of the three-dimensional data and the related information, and a new current block that includes the three-dimensional data and the related information are generated, with regard to the three-dimensional data and the related information; and the current block is broadcast within the first network and preserved in the plurality of computer terminals.

Description

3D data management system for parts

The present invention relates to a three-dimensional data management system for parts that prevents falsification and theft of three-dimensional data, and particularly relates to a three-dimensional data management system for parts of automobiles, particularly classic cars.

In recent years, the importance of protecting information artifacts such as three-dimensional data has increased. These information products are produced as the result of work and have economic value, but since they are electronic information, they are easily falsified and stolen. Furthermore, since it is not a tangible object, its legal protection is insufficient.

Among information products, the value of 3D data on parts has increased with the development of 3D printers. Having 3D data about parts makes it easier to manufacture many parts.

Mechanical and software techniques have been developed to protect 3D data from falsification and plagiarism. As fraud prevention techniques that utilize only software, techniques such as digital watermarking and digital signatures are known.

The electronic watermark is a technology that attempts to deter fraudulent acts by integrating content and embedded information to detect and warn of fraud, but it does not prevent fraudulent acts themselves.

The electronic signature is a technology that encrypts electronic information together with copyright information and terms of use so that even if it is copied, it cannot be used without the authorized key. Once acquired, falsification or plagiarism cannot be prevented.

On the other hand, blockchain is a technology that maintains accurate transaction history by linking transaction history from the past like a single chain, and the evidence of all transactions is held in a distributed manner by many people. Because it is difficult to falsify or steal data, it is said to be a technology that can record data extremely safely.

Among automobiles, classic cars are said to refer to ``cars manufactured before 1975'' (Japan Classic Car Association). Classic cars used to be thought of as a hobby for the wealthy, but these days they are increasingly being owned by ordinary people. Under these circumstances, the number of classic cars being maintained and restored is increasing year by year.

Because classic cars are vehicles that have been manufactured for more than 40 years, the necessary parts are often unavailable. For this reason, necessary parts are often not available when maintaining, repairing, restoring, and improving the performance of classic cars.

By applying 3D printer-related technologies such as 3D scanners and 3D printers to the production of classic car parts, the inventor has developed a part that can improve work efficiency and produce classic car parts that are satisfactory in terms of price and quality. We have developed a manufacturing system (see Patent Document 1).

In this parts manufacturing system, the three-dimensional data of the parts that is generated and stored, which is used to manufacture the parts with a 3D printer, is important. On the other hand, since the three-dimensional data of parts is electronic information, there is always a risk of falsification and theft during its storage and transactions. Once falsified or plagiarized, it may result in significant economic loss.

However, there has been no known effective system for preventing the falsification and theft of three-dimensional data of parts for classic cars, especially among automobiles (see Patent Document 2).

Registered utility model No. 3232527 International Publication WO2020/085347

As mentioned above, an effective system for preventing the falsification and theft of three-dimensional data of parts has been a challenge for automobiles, especially classic cars.

In view of the above-mentioned issues, the present inventor has conducted various studies and found that by combining 3D printer-related technologies such as 3D scanners and 3D printers with blockchain technology, it is possible to prevent falsification and theft of 3D data of parts. We discovered that it is possible to construct a system based on

Therefore, an object of the present invention is to construct an effective system that prevents falsification and theft of three-dimensional data of parts by combining 3D printer-related technologies such as 3D scanners and 3D printers with blockchain technology.

That is, the present invention is as follows.
[1]
(3D data management system for parts)
A management system for three-dimensional data of parts using blockchain, the management system comprising:
A plurality of computer terminals connected via a P2P connection via a first network, and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals,
here,
In the three-dimensional data processing device, the three-dimensional data and related information are generated,
the three-dimensional data and related information are transmitted and stored to the plurality of computer terminals via the second network;
Regarding the three-dimensional data and related information, a new current block containing the hash value of the previous block for the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information is generated. is,
the current block is broadcast within the first network and stored on the plurality of computer terminals;
management system.
[2]
The management system according to [1], wherein the part is an automobile part.
[3]
The management system according to [2], wherein the automobile is a classic car.
[4]
Further, according to any one of [1] to [3], the three-dimensional data and related information are authenticated in the first network, and the current block is generated for the three-dimensional data and related information after the authentication. management system.
[5]
The management system according to any one of [1] to [4], wherein the three-dimensional data and related information in the new block are protected by a digital watermark or a digital signature.
[6]
When using the electronic signature, a public key and a private key are created, the three-dimensional data and related information are signed with the private key, and the three-dimensional data and related information are verified with the public key.[5] ] management system.
[7]
The management system according to any one of [1] to [6], wherein the three-dimensional data processing device is at least one selected from the group consisting of a 3D scanner, 3D-CAD, 3D modeler, and 3D printer.
[8]
The three-dimensional data is at least one selected from the group consisting of scan data generated by the 3D scanner, correction data generated by the 3D-CAD, and modification data generated by the 3D modeler. The management system according to any one of [1] to [7].
[9]
The related information is at least one selected from the group consisting of manufacturing information of parts manufactured by the 3D printer, rights information of the three-dimensional data, work information, and transaction information, [1]- [8] Any of the management systems.
[10]
The management system according to [9], wherein the manufacturing information of the component is any one information selected from the group consisting of manufacturing date and time of the component, manufacturer, and manufacturing details.
[11]
The management system according to [9] or [10], wherein the rights information is at least one piece of information selected from the group consisting of a creator of three-dimensional data, a person in charge of creation, date and time of creation, and content of creation.
[12]
The management system according to any one of [9] to [11], wherein the work information is at least one piece of information selected from the group consisting of work type, work person, and work content.
[13]
[9] to [12], wherein the transaction information is at least one information selected from the group consisting of transaction data of the three-dimensional data, business partner, transaction type, transaction purpose, transaction conditions, and transaction method. Any management system.
[14]
The management system according to [13], wherein the transaction method involves erasure of the three-dimensional data after a certain period of time or a time limit by limiting a password validity period.
[15]
The management system according to [13] or [14], wherein the transaction method involves restriction based on biometric authentication that identifies the person in charge of the work at the business partner.
[16]
The computer terminal includes a communication unit that transmits and receives the three-dimensional data and related information, a storage unit that stores the three-dimensional data and related information, and processes the previous block using a hash function to create the current block. The management system according to any one of [1] to [15], comprising a blockchain creation unit that stores the new block, and a data storage unit that stores the new block.
[17]
The computer terminal is selected from the group consisting of a creator of the scan data, a creator of the correction data, a creator of the modification data, a parts manufacturer, a provider and a recipient of the three-dimensional data. The management system according to any one of [1] to [16], which is one computer terminal.
[18]
Among the plurality of computer terminals in the first network, one or a small number of central terminals are installed, and the central terminal receives terminal installation rights and the three-dimensional data of other computer terminals connected to the first network. The management system according to any one of [1] to [17], which manages access rights to, processing functions of the other computer terminals, and transaction rights.
[19]
[18], wherein the processing function of the computer terminal is selected from the group consisting of viewing and using three-dimensional data, generating and storing the new data and related information, and trading three-dimensional data. management system.
[20]
[18] or, in addition to the communication unit, the storage unit, the blockchain creation unit, and the data storage unit, the central terminal further includes a central management unit that authenticates the three-dimensional data and related information; Management system of [19].
[21]
The management system according to any one of [1] to [17], wherein the three-dimensional data and related information are authenticated by a consensus algorithm in the first network.
[22]
The management system according to [21], wherein the consensus-building algorithm is one selected from the group consisting of proof of work, proof of stake, and proof of importance.
[23]
(computer terminal)
A computer terminal installed in multiple parts in a management system for three-dimensional data of parts using blockchain,
Computer terminals connected to each other by a P2P connection via a first network and connected to a three-dimensional data processing device via a second network,
receiving and storing the three-dimensional data and related information generated in the three-dimensional data processing device via the second network;
For the three-dimensional data and related information, generate a new current block including the hash value of the previous block for the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information. death,
broadcasting the current block into the first network and saving the broadcasted current block;
computer terminal.
[24]
Among the computer terminals described in [23], one or a small number of central terminals are installed,
A central terminal that manages terminal installation rights, access rights to the three-dimensional data, processing functions of the other computer terminals, and transaction rights of other computer terminals other than the one or a small number of central terminals installed.
[25]
(3D data management program)
a plurality of computer terminals connected via a P2P connection via a first network; and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals. In the management system, controlling the plurality of computer terminals,
In the three-dimensional data processing device, generating the three-dimensional data and related information,
transmitting and storing the three-dimensional data and related information to the computer terminal via the second network;
Regarding the three-dimensional data and related information, a new current block is generated that includes the hash value of the block immediately before the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information. ,
broadcasting the current block within the first network and storing it on the plurality of computer terminals;
3D data management program.
[26]
(How to manage 3D data)
A method for managing three-dimensional data of parts using blockchain,
a plurality of computer terminals connected via a P2P connection via a first network; and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals;
In a 3D data management system for parts,
In the three-dimensional data processing device, the three-dimensional data and related information are generated,
the three-dimensional data and related information are transmitted to the computer terminal via the second network;
Regarding the three-dimensional data and related information, a new current block containing the hash value of the previous block of the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information is generated. ,
the current block is broadcast within the first network and stored on the plurality of computer terminals;
Management method.

According to the three-dimensional data management system for parts according to the present invention, it is possible to achieve an effective system for preventing falsification and theft of three-dimensional data on parts in automobiles, especially classic cars.

According to the three-dimensional data management system for parts according to the present invention, it is also possible to manage the generation of part data and related information and transaction information, and to make the management of three-dimensional data and related information smooth and easy. I can do it.

FIG. 2 is a diagram illustrating an outline of one form of a first network of P2P connection in a management system for three-dimensional data of parts according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an outline of one form of a first network and a second network connected to a computer terminal in a management system for three-dimensional data of parts according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an overview of one form of a three-dimensional data processing device of a second network in a management system for three-dimensional data of parts according to an embodiment of the present invention. FIG. 2 is a diagram showing one form of data generation, transmission, authentication, and storage in a three-dimensional data processing device in a management system for three-dimensional data of parts according to an embodiment of the present invention. 1 is a diagram illustrating an outline of a configuration of a computer terminal in a management system for three-dimensional data of parts according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an overview of one form of a block (B) creation mechanism in a management system for three-dimensional data of parts according to an embodiment of the present invention. 1 is a diagram showing one form of a parts manufacturing system in a management system for three-dimensional data of parts according to an embodiment of the present invention; FIG. FIG. 2 is a diagram illustrating an overview of a central terminal and other computer terminals in a management system for three-dimensional data of parts according to an embodiment of the present invention. 1 is a diagram schematically showing one form of a configuration of a central terminal in a management system for three-dimensional data of parts according to an embodiment of the present invention. It is a figure which shows the flowchart of one form of the process of the three-dimensional data management program of parts based on embodiment of this invention. FIG. 2 is a diagram illustrating a flowchart of one form of steps of a three-dimensional data management method for parts according to an embodiment of the present invention. 1 is a diagram schematically showing an example of an embodiment of a three-dimensional data management system for parts according to an embodiment of the present invention; FIG. 1 is a diagram schematically showing an example of an embodiment of a three-dimensional data management system for parts according to an embodiment of the present invention; FIG. 1 is a diagram schematically showing an example of an embodiment of a three-dimensional data management system for parts according to an embodiment of the present invention; FIG. 1 is a diagram schematically showing an example of an embodiment of a three-dimensional data management system for parts according to an embodiment of the present invention; FIG.

Embodiments of the present invention will be described in detail below using the drawings.
(3D data management system for parts)
The first aspect of the present invention is a management system for three-dimensional data of parts using blockchain, and as an embodiment shown in FIG.
A plurality of computer terminals (200: in FIG. 1, n terminals from 200 _X1 to ₂₀₀ ,
A three-dimensional data processing device (400: in the figure) connected to each of the plurality of computer terminals (200) via a second network (300: n networks from _300X1 to _300Xn in Figure 2). 2)), the management system comprising:
In the three-dimensional data processing device (400), the three-dimensional data and related information are generated,
the three-dimensional data and related information are transmitted to and stored in the computer terminal (200) via the second network (300);
Regarding the three-dimensional data and related information, a new current block containing the hash value of the previous block for the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information is generated. is,
the current block is broadcast within the first network (100) and stored on the plurality of computer terminals (200);
It is characterized by being a management system.

In FIG. 1, n computer terminals _200X1 , _200X2 , _200X3 , and _200Xn are connected via P2P within a first network (100).

_In FIG _. ₂ _, n computer _terminals ₂₀₀ Connected to _300X3 and _300Xn .

By having the above configuration, the management system for three-dimensional data of parts of the present invention can effectively prevent falsification and theft of three-dimensional data of parts in classic cars among automobiles.

As mentioned above, classic cars are vehicles that have been manufactured for more than 40 years, so the necessary parts are often unavailable. For this reason, necessary parts are often not available when maintaining, repairing, restoring, and improving the performance of classic cars. For this reason, manufacturing parts using a 3D printer can be an innovative method for manufacturing classic car parts.

Blockchain is a technology that maintains accurate transaction history by linking transaction history from the past like a single chain, and since the evidence of all transactions is held dispersedly by many people, it cannot be tampered with. It is said to be a technology that can record data extremely safely because it is difficult to steal or steal data. Block chain technology generally uses four element technologies: P2P connection, cache technology, electronic signature technology, and authentication technology.

The three-dimensional data management system for parts according to the present invention is preferably applied to automobile parts, particularly classic car parts. Since parts for classic cars are often difficult to obtain, manufacturing methods using 3D printers, which can produce parts as long as three-dimensional data is available, are an extremely effective method. For this reason, three-dimensional data of parts has high economic value, and there is a high risk of falsification or theft. The management system for three-dimensional data of parts using blockchain according to the present invention can be an effective means to prevent falsification and theft.

The management system is characterized by comprising a plurality of computer terminals (200) connected via a P2P connection via a first network (100). As mentioned above, connecting multiple computer terminals through P2P connections is one element of blockchain technology. That is, in the P2P connection network (100), the system is distributed and has the characteristic that even if some of the plurality of computer terminals go down, the entire system continues to operate.

The P2P (Peer to Peer) is a connection method in which a plurality of equivalent computer terminals directly communicate on a one-to-one basis. Each terminal can continue to operate independently.

The first network (100) may be an open network or a non-open network. Generally speaking, it is the Internet, which is an open network.

As shown in FIG. 1, the computer terminal (200) is connected to other computer terminals (200) via a first network (100). Further, the computer terminal (200) is also connected to the three-dimensional data processing device (400) via a second network (300), as shown in FIG. In FIG. 3, a 3D scanner (410), a 3D-CAD (420), a 3D modeler (430), and a 3D printer are shown as the three-dimensional data processing device (400).

In FIG. 3, a computer terminal (200) connected to a first network (100) is also connected to a second network (300), and a 3D scanner (410), a 3D - Also connected to CAD (420), 3D modeler (430), and 3D printer (440).

As shown in FIG. 5, the computer terminal (200) includes a blockchain control unit (210), and within the blockchain control unit (210), a communication unit (200) that transmits and receives the three-dimensional data and related information. 211), a storage unit (212) that receives and stores the three-dimensional data and related information from the communication unit (211), and a blockchain that processes the previous block with a hash function to create the current block. The data storage device may include a creation unit (213) and a data storage unit (214) that stores the new block.

The communication unit (211) can receive the three-dimensional data and related information generated by the three-dimensional data processing device (400) and transmitted via the second network (300). Also, the three-dimensional data and related information stored in the computer terminal (200) can be broadcast to other computer terminals (200) in the first network (100).

The storage unit (212) can receive and store the three-dimensional data and related information generated by the three-dimensional data processing device (400) through the communication unit (211).

As shown in FIG. 6, the blockchain creation unit (213) shares the three-dimensional data and related information generated by the three-dimensional data processing device (400) within the first network (100). A new current block including the hash value of the previous block for the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information can be generated.

FIG. 6 illustrates the creation of the current block B _An from the previous block B _An-1 for part A in the blockchain creation unit (213).

The hash technology used to create blocks in the blockchain creation unit (213) is the second element of blockchain technology. Hashing is an encryption technique that is good at identifying data, and by passing the input data through a hash function, it becomes a unique value, that is, a hash value. Since the hash value functions as an ID that identifies the input data, any falsification or damage to the data can be detected instantly.

The data storage unit (214) of the computer terminal (200) can receive blocks created by each of the plurality of computer terminals (200) by broadcast within the first network (100), and It can be stored in a data storage unit (214) within the terminal (200).

As the computer terminal, various electronic computers having computer functions can be used, such as a PC, a workstation, and a tablet PC.

The management system according to the present invention is characterized by comprising a three-dimensional data processing device (400) connected to each of the plurality of computer terminals (200) via a second network (300). Thereby, the three-dimensional data and related information generated by the three-dimensional processing device (400) in the second network (300) are immediately transferred to the computer terminal (200) connected to the first network (100). ) can be transmitted.

As shown in FIG. 3, the three-dimensional data processing device (400) is connected to the computer terminal (200) via the second network (300) to configure the component manufacturing system. As shown in FIG. 5, the computer terminal (200) may have a function of a three-dimensional data processing control unit (250) that controls the three-dimensional data processing device (400) in the second network (300). .

The second network (300) includes a 3D scanner (410), a 3D printer (440), and the computer terminal (200) connected to the 3D scanner and the 3D printer. As shown in FIG. 4, a 3D scanner (410) as a scan data preparation means for scanning the part and preparing scan data, optionally, the scan data from the 3D scanner (410). 3D-CAD (420) as a data correction means for correcting and preparing correction data; 3D as a data modification means for preparing modified data by modifying the scan data from the 3D scanner (410) or the correction data; It can include a modeler (430), and a 3D printer (440) as a modeling means for modeling a modeled article of the part based on the scan data, the correction data, or the modification data.

In the production system, work efficiency and cost can be improved by combining the computer terminal (200) connected to the 3D scanner (410), 3D-CAD (420), and 3D modeler (430), and the 3D printer (440). It is possible to provide a production system for classic car parts that is satisfactory in terms of quality and quality.

Furthermore, in the manufacturing system, as shown in FIG. 5, a three-dimensional data processing control section (250) in the computer terminal (200) includes the scan data database (253) and the correction data database (254). , and the modification data database (255), wherein the communication unit (251) in the computer terminal (200) receives the scan data from the 3D scanner (410) and transmits the scan data database (253). ), and optionally, the computer terminal (200) converts the scan data from the scan data database (253) into the correction data by the 3D-CAD (420), and converts the correction data into the correction data. The correction data is stored in the correction data database (254), and the computer terminal (200) converts the correction data from the correction data database (254) into the modification data by the 3D modeler (430), In the manufacturing system, data is stored in the modification data database (255), and the computer terminal (200) transmits the modification data from the modification data database (255) to the 3D printer (440). could be.

The three-dimensional data processing control unit (250) in the computer terminal (200) includes the scan data database (253), the correction data database (254), and the modification data database (255), A parts manufacturing system including the computer terminal (200) connected to the 3D scanner (410) and the 3D printer (440) converts the parts into printed products based on manufacturing efficiency, price, and quality. It can be restored, reproduced, and manufactured with high performance from the surface.

In the second network (300), as shown in FIG. 7, the operating status of the 3D printer (440) is communicated between the computer terminal (200) as a part manufacturing system and the 3D printer (440). An IoT kit (460) can be further provided that monitors and transmits monitoring information to the computer terminal (200), and also allows the computer terminal (200) to monitor the 3D printer (440) based on the monitoring information. ) may further include a control unit (260) that controls the operation of the device.

Depending on the shape of the part, it may take a long time (for example, 10 hours) to manufacture the part. The 3D printer monitoring function provided by the IoT kit (460) makes it possible to respond to unforeseen situations such as a machine stopping. This makes it possible to grasp the situation and take action even from a remote location in the event that a machine stops operating or something goes wrong with the machine.

In the IoT kit (460), a sensor and a management unit are installed in the 3D printer (440) to automatically collect measurement data in order to monitor the production status of the modeled product in the 3D printer (440). Through the management kit, data can be viewed and analyzed by the three-dimensional data processing control unit (250) of the computer terminal (200) as a computer.

The three-dimensional data and related information generated by the three-dimensional data processing device (400), transmitted to and stored in the three-dimensional data processing control unit (250) of the computer terminal (200) in the second network (300) Information can be broadcast within the first network (100) through the blockchain controller (210) and authenticated. The three-dimensional data and related information after the authentication may be generated and stored in the current block in each blockchain control unit (210) of the computer terminal (200) of the first network (100). .

The authentication is an agreement within the blockchain network to fix the block as the correct one, and is the third element of blockchain technology.

That is, the three-dimensional data and related information can be authenticated within the first network (100) through the communication unit (211) of the blockchain control unit (210) in the computer terminal (200). After the authentication, the three-dimensional data and related information are used to create the blockchain through the communication unit (211) of the blockchain control unit (210) in each of the computer terminals (200) of the first network (100). In section (213) said current block is created and then saved in said data storage section (214).

The above authentication is performed using several authentication methods. Generally, one or a few central terminals (201) of the computer terminals (200) are involved in authentication, but authentication is performed by the blockchain control unit (210) in the first network (100) using a consensus algorithm. is also possible.

The authentication of the block by the central terminal (201) can be performed by verifying the contents of the block or checking the authorization function. Verifying the contents of a block refers to checking the contents of the three-dimensional data and related information to verify whether set conditions are satisfied. Inspecting the approved functions does not involve verifying the contents of the three-dimensional data and related information, but refers to checking whether the computer terminal (200) is operating within the approved functions.

The three-dimensional data and related information in the new current block may be further protected by a software data protection system. Protection of the three-dimensional data and related information by a data protection system is the fourth element of blockchain technology.

Various systems have been developed as the data protection system, and for example, protection can be provided by digital watermarks or digital signatures.

According to the digital watermark, it is possible to prevent fraudulent acts by integrating content and embedded information, detecting fraud, and issuing a warning.

According to the electronic signature, electronic information can be encrypted together with copyright information and usage conditions, so that even if it is copied, it cannot be used without a valid key.

When using the electronic signature, a public key and a private key are generally created, the three-dimensional data and related information are signed by the private key, and the three-dimensional data and related information can be confirmed by the public key. . The fourth element of the blockchain technology is generally a method that employs this electronic signature technology.

As described above, the three-dimensional data processing device (400) connected to the computer terminal (200) functioning as a control device for the three-dimensional data processing device via the second network (300) is illustrated in FIG. As shown in , at least one selected from the group consisting of a 3D scanner (410), a 3D-CAD (420), a 3D modeler (430), and a 3D printer (440) can be mentioned. The three-dimensional data and related information may be generated by the three-dimensional data processing device (400).

As shown in FIG. 4, the three-dimensional data generated by the three-dimensional data processing device may include scan data generated by the 3D scanner (410), scan data generated by the 3D-CAD (420), etc., depending on the generating device. and modification data generated by the 3D modeler (430).

The related information generated by the three-dimensional data processing device may include manufacturing information of parts manufactured by the three-dimensional printer, rights information of the three-dimensional data, work information, transaction information, and the like.

The manufacturing information of the component is information related to manufacturing a restored product of the component that is manufactured by a 3D printer using the three-dimensional data of the component.

The manufacturing information of the parts may include manufacturing date and time, manufacturer indicating the manufacturer, company, organization, etc., manufacturing details indicating the number of manufactured parts, manufacturing details, etc.

By storing the manufacturing information of the part as a continuous block, it is possible to know at any time the manufacturing history, manufacturing details, etc. of the restored product of the part using the three-dimensional data.

Of the related information, the rights information is generated as information indicating the rights to the three-dimensional data each time the three-dimensional data is generated. When three-dimensional data is generated, new three-dimensional data is created such as scan data is generated by a 3D scanner, correction data is generated by 3D-CAD, modified data is generated by a 3D modeler, etc. This refers to the case where all new data is generated, such as when three-dimensional data is modified to generate new modified data, and can be generated as information indicating where the rights reside.

The rights information may include the creator of the three-dimensional data, the person in charge of creation, the date and time of creation, and the content of creation. The creator is information indicating the company, institution, organization, etc. that created the file. The person in charge of creation is information indicating the person who performed the generation work for the three-dimensional data of the company or the like. The rights information may include creation details indicating the creation date and time, related parts of the created data, three-dimensional data processing device, and the like.

By storing the rights information as a continuous block, it is possible to know the history, history, and ownership of rights regarding the three-dimensional data at any time.

Among the related information, work information is generated when work related to 3D data that does not involve the creation of 3D data occurs, in other words, when work related to 3D data that does not involve the generation of rights information occurs. Ru. Examples include viewing the three-dimensional data, inspecting the related information, and the like.

The work information may include work date and time, work type, person in charge of work, and work content. The person in charge of the work indicates the person who performed the work, the work type indicates the classification of the work, and the work content indicates the specific content of the work.

By storing the work information as a continuous block, the history of work on the three-dimensional data can be known at any time.

Among the related information, transaction information is generated every time a transaction involving the provision of the three-dimensional data to a third party and acquisition from a third party occurs. The transactions include various transactions, and in the case of transactions in the form of licenses, assignments, etc., information regarding the transfer of rights may be included.

The transaction information includes the business partner, transaction type, transaction purpose, transaction conditions, etc. of the three-dimensional data. Examples of the business partner include business partners, organizations, institutions, and the like. The transaction type and purpose may include license provision and acquisition, provision and acquisition by transfer, provision and acquisition based on joint development, provision and acquisition based on joint manufacturing, and the like. Examples of the transaction conditions include license conditions including transaction prices, transfer conditions, and the like.

By storing the transaction information as a continuous block, it is possible to know the transaction history, rights history based on the transaction, etc. regarding the three-dimensional data at any time.

In the transaction, especially in the case of providing some kind of three-dimensional data, transaction conditions other than the above transaction conditions can be set. Various conditions can be set as the transaction conditions from the viewpoint of preventing falsification and plagiarism of the three-dimensional data.

Examples of the transaction conditions include erasing the three-dimensional data after a certain period of time after the three-dimensional data is provided, or limiting the time for providing the three-dimensional data by limiting the password validity period.

Further, as the transaction conditions, transaction conditions that specify the worker can also be provided. For example, work can be approved only by a specific worker using biometric authentication such as fingerprint authentication or face authentication.

As described above, the blockchain control unit (210) in the computer terminal (200) of the first network (100), the communication unit (211) that transmits and receives the three-dimensional data and related information, and the three-dimensional data and related A storage unit (212) that stores information, a blockchain creation unit (213) that processes the previous block with a hash function to create the current block, and a data storage unit (213) that stores the new block. 214). These computer terminals (200) are computer terminals belonging to the creator of the scan data, the creator of the correction data, the creator of the modification data, the parts manufacturer, and the person receiving the three-dimensional data. could be.

Among the plurality of computer terminals (200) in the first network (100), one or a small number of central terminals (201) are installed, as shown in FIG. Other computer terminals (209) connected to the network (100) have terminal installation rights, access rights to the three-dimensional data, processing functions of the other computer terminals (209), transaction rights, etc. can be managed.

In FIG. 8, one central terminal (201) and three or more other computer terminals (209) are installed in the first network, and these are connected by P2P.

The processing functions of the computer terminal (200), that is, the processing functions of the three-dimensional data processing control unit (250) in the computer terminal (200) include viewing and using three-dimensional data, generating and storing the three-dimensional data, Examples include providing the three-dimensional data.

As shown in FIG. 9, the central terminal (201) includes the communication unit (211), the storage unit (212), the blockchain creation unit (213), and the data storage included in the computer terminal (200). In addition to the section (214), a central management section (220) can also be provided.

The central terminal (201) can determine the new current block by authenticating the three-dimensional data and related information. This authentication function can be performed by the central management section (220) within the central terminal (201).

The authentication of the current block can also be a system in which a specific computer terminal, such as the central terminal (201), is not responsible. In this case, the system may be such that the three-dimensional data and related information are authenticated by a consensus algorithm in the first network (100).

Various algorithms can be used as the consensus building algorithm, and examples thereof include proof of work, proof of stake, and proof of importance.

(computer terminal)
A second aspect of the present invention is a plurality of computer terminals in a management system for three-dimensional data of parts using blockchain,
Computer terminals connected to each other by a P2P connection via a first network and connected to a three-dimensional data processing device via a second network,
receiving and storing the three-dimensional data and related information generated in the three-dimensional data processing device via the second network;
For the three-dimensional data and related information, generate a new current block including the hash value of the previous block for the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information. death,
broadcasting the current block into the first network and saving the broadcasted current block;
It is characterized by

The plurality of computer terminals may store and transmit three-dimensional data generated by the three-dimensional data processing device (400) of the second network (300), and form a block chain with the first network (100). can. As a result, it is possible to construct a system that can simultaneously generate three-dimensional data and prevent its falsification and plagiarism.

One or a small number of central terminals are installed among the plurality of computer terminals, and the central terminal has the right to install terminals of other computer terminals other than the central terminal where the one or a small number of central terminals are installed, and access to the three-dimensional data. The system may also be capable of managing access rights, processing functions of the other computer terminals, and transaction rights.

By installing the central terminal, it is possible to prevent tampering and theft of three-dimensional data using the blockchain, manage transaction history, and at the same time create a system that can be centrally managed as a private chain.

(Parts 3D data management program)
A third aspect of the present invention is a management program for three-dimensional data of parts using blockchain, and as an embodiment shown in the flowchart of FIG.
a plurality of computer terminals connected via a P2P connection via a first network; and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals. In the management system, controlling the plurality of computer terminals,
In the three-dimensional data processing device, generating the three-dimensional data and related information,
the three-dimensional data and related information are transmitted to the computer terminal via the second network;
Regarding the three-dimensional data and related information, a new current block is generated that includes the hash value of the block immediately before the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information. ,
The present invention is characterized by a three-dimensional data management program that broadcasts the current block within the first network and stores it in the plurality of computer terminals.

By using the management program for three-dimensional data of parts according to the present invention, it is possible to construct an effective system for preventing falsification and theft of three-dimensional data of parts in automobiles, especially classic cars.

(Management method of 3D data of parts)
A fourth aspect of the present invention is a method for managing three-dimensional data of parts using blockchain, and as an embodiment shown in the flowchart of FIG. 11,
A method for managing three-dimensional data of parts using blockchain,
a plurality of computer terminals connected via a P2P connection via a first network; and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals;
In a 3D data management system for parts,
In the three-dimensional data processing device, the three-dimensional data and related information are generated,
the three-dimensional data and related information are transmitted to the computer terminal via the second network;
Regarding the three-dimensional data and related information, a new current block containing the hash value of the previous block of the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information is generated. ,
The method is characterized in that the current block is broadcast within the first network and stored in the plurality of computer terminals.

By using the 3D data management method of parts according to the present invention, it is possible to construct an effective 3D data management method for preventing falsification and theft of 3D data of parts in classic cars among automobiles. can.

In the component three-dimensional data management system, computer terminal, management program, and management method according to the first to fourth aspects of the present invention, a blockchain control unit (210) of the computer terminal (200) and a three-dimensional data processing control The unit (250) can be placed only in the computer terminal (200), but it can also be distributed and placed in other parts of the three-dimensional data management system for the component.

Furthermore, the functional configuration of the three-dimensional data management system and management method for parts is merely an example of an embodiment, and one functional block (database and functional processing unit) may be divided or multiple functional blocks may be combined into one. It may also be configured as one functional block. In each functional processing unit, a CPU (Central Processing Unit) built into a computer device reads a computer program stored in a storage device such as a ROM (Read Only Memory) or a hard disk, and executes the computer program by the CPU. realized by In other words, each functional processing unit is configured so that the computer program reads and writes necessary data such as tables from a database stored in a storage device or a storage area in memory, and in some cases, it also reads and writes necessary data such as tables from a database stored in a storage device or a storage area in memory, and in some cases, This is realized by controlling the output device, display device, communication interface device). Further, the database in the embodiment of the present invention may be a commercial database, but it also means a simple collection of tables or files, and the internal structure of the database itself is not critical. Note that the database may also be considered as one server (database server).

The present invention will be described below using examples of embodiments, but the present invention is not limited to the following examples of embodiments.

Example 1 of embodiment:
(Management system consisting of company a that generates 3D data of parts, company b that manufactures the parts, etc.)
Company a owns a central terminal (201), can control the functions of other computer terminals (209), authenticate the current block, and generate three-dimensional data. Company B, Company C, Company D, etc. own the other computer terminals (209) and manufacture parts based on the three-dimensional data generated by Company A.

As shown in FIG. 12, a plurality of computer terminals (200) are connected by a P2P connection via a first network (100), where the plurality of computer terminals (200) are connected to one central terminal (201). ) and other terminals (209) of three or more (Company B, Company C, Company D, etc.), and via a second network (300) connected to each of the plurality of computer terminals (200). A connected three-dimensional data processing device (400) (in FIG. 12, a 3D printer (440)), which is connected to the one central terminal (201) among the plurality of computer terminals (200). a 3D scanner (410), a 3D-CAD (420), a 3D modeler (430), and a 3D printer (440) connected via a second network (300), and the plurality of computer terminals (200). Among these, the management system includes a 3D printer (440) connected via a second network (300) connected to the three or more other terminals (209).

The three-dimensional data and related information are generated in the three-dimensional data processing device (400), which is connected via a second network (300) connected to the one central terminal (201). The three-dimensional data and related information are generated in the 3D scanner (410), 3D-CAD (420), and 3D modeler (430), and among the plurality of computer terminals (200), the three or more other The related information is generated in a 3D printer (440) connected via a second network (300) connected to a terminal (209).

The three-dimensional data and related information are transmitted to and stored in the computer terminal (200) via the second network (300), and the three-dimensional data and related information are stored in a hash of the previous block for the part. a new current block comprising a value, a hash value of the three-dimensional data and related information, and the three-dimensional data and related information, and broadcasting the current block into the first network (100); The information is stored in the plurality of computer terminals (200).

As shown in FIG. 12, all said three-dimensional data processing devices (200), such as a 3D scanner (410), a 3D-CAD (420), a 3D modeler (430), and a 3D printer (440) are connected to the 3D printer (440) via a second network (300) connected to a plurality of other computer terminals (209). only connected. That is, among the plurality of computer terminals (200), only the central terminal (201) is involved in the generation of the three-dimensional data, and the other computer terminals (209) are involved in generating the restored parts using the three-dimensional data. , and is not involved in the generation of the three-dimensional data.

In the example of the embodiment described above, the central terminal (201) controls the generation of three-dimensional data in the second network (300) and provides the three-dimensional data to other terminals (209) in the first network (100). control. Further, the three-dimensional data is prevented from being tampered with or stolen by a blockchain in the first network (100).

Example 2 of embodiment:
(Management system consisting of company a that generates 3D data of parts, company b that generates only correction data, company c that manufactures the parts, etc.)
Company a owns a central terminal (201), can control the functions of other computer terminals (209), authenticate the current block, and generate three-dimensional data. Company b owns another computer terminal (209) and generates only correction data that is partially three-dimensional data. Company c, company d, etc. own the other computer terminals (209) and manufacture parts by receiving the three-dimensional data generated by companies a and b.

As shown in FIG. 13, a plurality of computer terminals (200) are connected via a P2P connection via a first network (100), where the plurality of computer terminals (200) are connected to a central A second network (300) which is a terminal (201) and other terminals (209) of three or more (Company B, Company C, Company D, etc.), and is connected to each of the plurality of computer terminals (200). A three-dimensional data processing device (400) connected via a second network (300) connected to one central terminal (201) of the company a among the plurality of computer terminals (200); ) of the 3D scanner (410), 3D-CAD (420), 3D modeler (430), and 3D printer (440), and the plurality of computer terminals (200), one of the company b 3D-CAD (420) connected via a second network (300) connected to other terminals (209) of the machine, and other terminals (209) of two or more machines of companies c and d. The management system includes a 3D printer (440) connected via a second network (300).

The three-dimensional data and related information are generated in the three-dimensional data processing device (400), and are then processed through a second network (300) connected to one central terminal (201) of the company a. The three-dimensional data and related information are generated in the connected 3D scanner (410), 3D-CAD (420), and 3D modeler (430), and here, one central terminal (201) of the company a The 3D scanner (410), 3D-CAD (420), 3D modeler (430), and 3D printer (440) connected via the second network (300) connected to the Qualification data and related information are generated and connected via a second network (300) connected to one other terminal (209) of the company B among the plurality of computer terminals (200). The correction data is generated in 3D-CAD (420).

As shown in FIG. 13, all the three-dimensional data processing devices (200), 3D scanner (410), A 3D-CAD (420), a 3D modeler (430), and a 3D printer (440) are connected. On the other hand, the 3D-CAD (420) is connected via a second network (300) connected to one other terminal (209) of the company b among the plurality of other computer terminals, and Among the other computer terminals, only the 3D printer (440) is connected via a second network (300) connected to two or more other terminals (209) such as the company C. That is, among the plurality of computer terminals (200), only the central terminal (201) of company a and one computer terminal of company b are involved in the generation of the three-dimensional data, and two or more of the computer terminals of company c, etc. Other computer terminals (209) are involved only in the production of reconstructed parts using the three-dimensional data, and are not involved in the generation of the three-dimensional data.

In the example of the embodiment described above, the central terminal (201) of company a controls the generation of three-dimensional data in the second network (300), and transmits three-dimensional data to other terminals (209) in the first network (100). Control the provision of data. One computer terminal (209) of company b also generates correction data, but its provision is controlled by the central terminal. The three-dimensional data is prevented from being tampered with or stolen by a blockchain in the first network (100).

Embodiment example 3:
(Company a generates 3D data of the part and acquires the 3D data of the part generated by company b, Company b generates 3D data of the part and provides the 3D data of the part to company a, and A management system consisting of manufacturing company C, etc.)
Company a owns a central terminal (201), can control the functions of other computer terminals (209), authenticate the current block, and generate three-dimensional data. Company b has a central terminal (201) that can control some functions, and can control the provision of 3D data generated by company b's 3D scanner (410) and the like. Company c, etc. owns the other computer terminal (209) and manufactures parts based on the three-dimensional data generated by companies a and b.

As shown in FIG. 14, a plurality of computer terminals (200) are connected via a P2P connection via a first network (100), where the plurality of computer terminals (200) are two computers from company a and company b. , and other terminals (209) of Company C, etc., and three-dimensional data connected via a second network (300) connected to each of the plurality of computer terminals (200). A processing device (400), which is connected to two central terminals (201) of the company a and company b among the plurality of computer terminals (200) via a second network (300). 3D scanner (410) and/or 3D-CAD (420), 3D modeler (430), and 3D printer (440); ) A 3D printer (440) connected via a second network (300).

The three-dimensional data and related information are generated in the three-dimensional data processing device (400), and the second network (300) is connected to the two central terminals (201) of the companies a and b. The three-dimensional data and related information are generated in the 3D scanner (410) and/or 3D-CAD (420) and 3D modeler (430) connected via the plurality of computer terminals (200). Among them, the related information is generated in a 3D printer (440) connected via a second network (300) connected to the other terminal (209) of company c or the like.

As shown in FIG. 14, the 3D scanner (410) which is all the three-dimensional data processing devices (200) is connected to the central terminal (201) of companies a and b via a second network (300). , a 3D-CAD (420), a 3D modeler (430), and a 3D printer (440), but a second network (300) connected to a plurality of other computer terminals (209) such as company c etc. Only the 3D printer (440) is connected through it. That is, among the plurality of computer terminals (200), two central terminals (201) of company a and company b are involved in generating the three-dimensional data, and the other computer terminals (209) generate the three-dimensional data. It is involved only in manufacturing the reconstructed parts of the used parts, and is not involved in the generation of the three-dimensional data.

In the example of the embodiment described above, the central terminals (201) of companies a and b control three-dimensional data generation in the second network (300), and the central terminal (201) of company a controls the generation of three-dimensional data in the first network (100). ) controls the provision of three-dimensional data to other terminals (209). Further, the three-dimensional data is prevented from being tampered with or stolen by a blockchain in the first network (100).

Embodiment example 4:
(Management system consisting of multiple computers installed equally, each with a 3D data processing device for one of the parts)
A plurality of computer terminals (200) are P2P connected via a first network (100), and each of the plurality of computer terminals (200) is connected to a three-dimensional processing device (400) via a second network (300). is connected to. Each computer terminal (200) is connected to P2P on an equal basis, and data is authenticated by a consensus algorithm.

As shown in FIG. 15, a plurality of computer terminals (200) are connected via a P2P connection via a first network (100), and a second network (300) is connected to each of the plurality of computer terminals (200). ), where the plurality of computer terminals (200) are a management system including any three-dimensional data processing device (400).

The three-dimensional data and related information are generated in the three-dimensional data processing device (400), and are sent to the plurality of computer terminals (200) via a second network (300), such as a D scanner (410), At least one 3D data processing device (400) of a 3D-CAD (420), a 3D modeler (430), and a 3D printer (440) is connected, and these 3D data processing devices (400) process 3D data and Relevant information is generated.

The three-dimensional data and related information are transmitted to and stored in the computer terminal (200) via the second network (300). The three-dimensional data and related information are authenticated by a consensus algorithm in the first network (100).

Regarding the authenticated three-dimensional data and related information, a hash value of the previous block for the part, a hash value of the three-dimensional data and related information, and a new current state including the three-dimensional data and related information. a block is generated, and the current block is broadcast within the first network (100) and stored in the plurality of computer terminals (200).

As shown in FIG. 15, a 3D scanner (410), which is the three-dimensional data processing device (200), a 3D-CAD (420) ), a 3D modeler (430), and a 3D printer (440), the 3D data processing device (400) generates the three-dimensional data and related information. Ru.

In the example of the embodiment described above, unlike Examples 1 to 3 above, there is no central terminal (201), and the plurality of computer terminals (200) connected via the first network (100) are equal. In the first network (100), the 3D data and related information are authenticated by a proof-of-work consensus algorithm. The three-dimensional data and related information are prevented from being tampered with or stolen by the blockchain in the first network (100).

Although the present invention has been described above using examples of embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the embodiments described above. Furthermore, it is clear from the description of the utility model registration claims that such modifications or improvements may be included within the technical scope of the present invention.

100 First network 200 Computer terminal 201 Central terminal 209 Other computer terminals 210 Block chain control unit 211 Communication unit 212 Storage unit 213 Block chain creation unit 214 Data storage unit 220 Central management unit 250 Three-dimensional data processing control unit 251 Communication unit 252 Storage unit 253 Scan data database (DB)
254 Correction data database (DB)
255 Qualification data database (DB)
260 IoT control unit 300 Second network 400 3D data processing device 410 3D scanner 420 3D-CAD
430 3D modeler 440 3D printer 460 IoT kit

Claims

A management system for three-dimensional data of parts using blockchain, the management system comprising:
A plurality of computer terminals connected via a P2P connection via a first network, and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals,
here,
In the three-dimensional data processing device, the three-dimensional data and related information are generated,
the three-dimensional data and related information are transmitted and stored to the plurality of computer terminals via the second network;
Regarding the three-dimensional data and related information, a new current block containing the hash value of the previous block for the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information is generated. is,
the current block is broadcast within the first network and stored on the plurality of computer terminals;
management system.
The management system according to claim 1, wherein the part is an automobile part.
The management system according to claim 2, wherein the automobile is a classic car.
The management system according to any one of claims 1 to 3, further comprising: the three-dimensional data and related information being authenticated in the first network, and the current block being generated for the authenticated three-dimensional data and related information. .
The management system according to any one of claims 1 to 4, wherein the three-dimensional data and related information in the new block are protected by a digital watermark or a digital signature.
When using the electronic signature, a public key and a private key are created, a signature is attached to the three-dimensional data and related information by the private key, and the three-dimensional data and related information are confirmed by the public key. 5 management system.
The management system according to any one of claims 1 to 6, wherein the three-dimensional data processing device is at least one selected from the group consisting of a 3D scanner, 3D-CAD, 3D modeler, and 3D printer.
The three-dimensional data is at least one selected from the group consisting of scan data generated by the 3D scanner, correction data generated by the 3D-CAD, and modification data generated by the 3D modeler. The management system according to any one of claims 1 to 7.
Claim 1-, wherein the related information is at least one selected from the group consisting of manufacturing information of parts manufactured by the 3D printer, rights information of the three-dimensional data, work information, and transaction information. 8. Any management system.
The management system according to claim 9, wherein the manufacturing information of the component is any one information selected from the group consisting of manufacturing date and time of the component, manufacturer, and manufacturing details.
The management system according to claim 9 or 10, wherein the rights information is at least one piece of information selected from the group consisting of a creator of the three-dimensional data, a person in charge of creation, date and time of creation, and content of creation.
The management system according to any one of claims 9 to 11, wherein the work information is at least one piece of information selected from the group consisting of work type, work person, and work content.
Any one of claims 9 to 12, wherein the transaction information is at least one information selected from the group consisting of transaction data of the three-dimensional data, business partner, transaction type, transaction purpose, transaction conditions, and transaction method. management system.
14. The management system according to claim 13, wherein the transaction method includes a time limit by erasing the three-dimensional data after a certain period of time or by limiting a password validity period.
The management system according to claim 13 or 14, wherein the transaction method involves restriction based on biometric authentication that identifies the person in charge of the work at the business partner.
The computer terminal includes a communication unit that transmits and receives the three-dimensional data and related information, a storage unit that stores the three-dimensional data and related information, and processes the previous block using a hash function to create the current block. The management system according to any one of claims 1 to 15, comprising a blockchain creation unit that stores the new block, and a data storage unit that stores the new block.
The computer terminal is selected from the group consisting of a creator of the scan data, a creator of the correction data, a creator of the modification data, a parts manufacturer, a provider and a recipient of the three-dimensional data. 17. The management system according to claim 1, wherein the management system is one computer terminal.
Among the plurality of computer terminals in the first network, one or a small number of central terminals are installed, and the central terminal receives terminal installation rights and the three-dimensional data of other computer terminals connected to the first network. 18. The management system according to claim 1, wherein the management system manages access rights to, processing functions of the other computer terminal, and transaction rights.
19. The processing function of claim 18, wherein the processing function of the computer terminal is one selected from the group consisting of viewing and using three-dimensional data, generating and storing the new data and related information, and trading three-dimensional data. management system.
19. The central terminal further includes a central management section that authenticates the three-dimensional data and related information in addition to the communication section, the storage section, the blockchain creation section, and the data storage section. 19 management systems.
The management system according to any one of claims 1 to 17, wherein the three-dimensional data and related information are authenticated by a consensus algorithm in the first network.
22. The management system according to claim 21, wherein the consensus-building algorithm is one selected from the group consisting of proof of work, proof of stake, and proof of importance.
A computer terminal installed in multiple parts in a management system for three-dimensional data of parts using blockchain,
Computer terminals connected to each other by a P2P connection via a first network and connected to a three-dimensional data processing device via a second network,
receiving and storing the three-dimensional data and related information generated in the three-dimensional data processing device via the second network;
For the three-dimensional data and related information, generate a new current block including the hash value of the previous block for the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information. death,
broadcasting the current block into the first network and saving the broadcasted current block;
computer terminal.
Among the computer terminals according to claim 23, one or a few central terminals are installed,
A central terminal that manages terminal installation rights, access rights to the three-dimensional data, processing functions of the other computer terminals, and transaction rights of other computer terminals other than the one or a small number of central terminals installed.
a plurality of computer terminals connected via a P2P connection via a first network; and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals. In the management system, controlling the plurality of computer terminals,
In the three-dimensional data processing device, generating the three-dimensional data and related information,
transmitting and storing the three-dimensional data and related information to the computer terminal via the second network;
Regarding the three-dimensional data and related information, a new current block is generated that includes the hash value of the block immediately before the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information. ,
broadcasting the current block within the first network and storing it on the plurality of computer terminals;
3D data management program.
A method for managing three-dimensional data of parts using blockchain,
a plurality of computer terminals connected via a P2P connection via a first network; and a three-dimensional data processing device connected via a second network connected to each of the plurality of computer terminals;
In a 3D data management system for parts,
In the three-dimensional data processing device, the three-dimensional data and related information are generated,
the three-dimensional data and related information are transmitted to the computer terminal via the second network;
Regarding the three-dimensional data and related information, a new current block containing the hash value of the previous block of the part, the hash value of the three-dimensional data and related information, and the three-dimensional data and related information is generated. ,
the current block is broadcast within the first network and stored on the plurality of computer terminals;
Management method.