MOBILE PRODUCTION PLANT AND METHOD FOR PRODUCING A PART IN SAID PLANT

Abstract

MOBILE PRODUCTION PLANT AND METHOD FOR PRODUCING A PART IN SAID PLANT One aspect of the invention relates to a mobile production plant 1 comprising: A mobile unit 2 for scanning a topology of a part, arranged to: Scan a part and construct a 3D digital file modeling said part; Transmit the digital file to a remote file sharing system 7; A first agent 8 arranged to: Receive, from the system 7, a production file having been reconstructed from the 3D digital file; Determine a first hash value reflecting the content of the received production file; Receive a second hash value, determined by a second remote agent 10, reflecting the content of the production file hosted in the system 7; A mobile production unit 4 arranged to, if said first and second determined hash values ​​are identical, trigger production of a part.Figure to be published with the abstract: Figure 1.

Description

Title of the invention: MOBILE PRODUCTION PLANT AND METHOD FOR PRODUCING A PART IN SAID PLANT

[0001] One aspect of the invention relates to a mobile production plant comprising a mobile unit for scanning a topology of a part and a mobile production unit.

[0002] Another aspect of the invention relates to a method of producing a part in a mobile production plant comprising a mobile unit for scanning a topology of a part and a mobile production unit.

[0003] Mobile means that the production plant can be moved. For this purpose, the mobile production plant can be arranged in one or more containers.

[0004] These aspects of the invention find particularly interesting, but not exclusive, applications in the field of additive printing and machining.

[0005] During a natural disaster, such as a fire, flood or earthquake, rescuers from different nations are dispatched to a theatre of operations.

[0006] These rescuers arrive at the theater of operations with their own equipment in order to fight the fire, search for survivors, carry out repairs, etc.

[0007] During an intervention, one of the rescuers' equipment, for example a firefighter's breathing mask, may be damaged so that the firefighter can no longer intervene. He must order a replacement part from the manufacturer.

[0008] If the manufacturer is able to manufacture the spare part, it is often far from the theater of operation and must respect a non-compressible manufacturing deadline. During this manufacturing and transport time, no longer having a breathing mask, the firefighter can no longer intervene in the theater of operation. However, during such a disaster, the presence of each rescuer is crucial because the lives of the people who have suffered this disaster depend on it.

[0009] Similarly, obtaining a spare part from another manufacturer who is not very concerned about product quality can be disastrous for the firefighter.

[0010] An aim of the invention is to overcome the drawbacks of the prior art by proposing a production plant making it possible to quickly manufacture parts conforming to a production file.

[0011] In this context, the invention thus relates, in its broadest sense, to a mobile production plant comprising: • A mobile unit for scanning the topology of a room constructed and arranged for: • Digitize a topology of a part and build a 3D digital file modeling the topology of the digitized part; • Establish an initial secure connection with a file sharing system remote from the mobile production plant; • Transmit, via the first secure connection, the 3D digital file to the file sharing system; • A first agent built and arranged for: • Establish a second secure connection with the file sharing system, the file sharing system hosting a production file having been reconstructed from the transmitted 3D digital file; • Receive, via the second secure connection, the production file; • Determine a first hash value reflecting the content of the received production file; • Receiving, from a central server remote from the mobile production plant, a second hash value reflecting the content of the production file hosted in the file sharing system or transmitting said first hash value to said central server, the second hash value having been determined by a second agent and recorded in the central server as well as in a blockchain; the second agent being remote from the mobile production plant; • Comparing the first determined hash value to the second determined hash value or receiving from said central server a result of a comparison of said first determined hash value to said second determined hash value; • A mobile production unit constructed and arranged to, if said first and second determined hash values ​​are identical, trigger production of a part conforming to the production file.

[0012] In other words, the mobile production plant comprises, on the one hand, a mobile unit for digitizing a topology of a part, for example carrying a scanner, and, on the other hand, a mobile production unit. The mobile digitizing unit makes it possible to digitize a used part and then issue a request to obtain the production file corresponding to the digitized part via a secure channel. As soon as the production file is received by a first agent computer embedded in the mobile production plant, it assigns a specific hash value to the received production file. This hash value is then compared with the one previously determined by a second agent, remote and distinct from the first agent, and more generally remote from the mobile production plant. If the hash values ​​actually match, this means that no bit of the production file has been modified. The production of the part is then launched in the mobile production plant via the mobile production unit.

[0013] The invention according to this aspect thus makes it possible to manufacture parts quickly in places that are difficult to access, such as an operating theater, in accordance with an unaltered production file. Indeed, the comparison of the two hash values ​​assigned, each by a different computer agent, makes it possible to certify the integrity of the production file received by the mobile production unit. It follows that the part produced conforms to the plan contained in the production file recorded on the file sharing system.

[0014] In addition to the characteristics which have just been mentioned in the preceding paragraph, the mobile production plant according to the invention may have one or more complementary characteristics among the following, considered individually or according to all technically possible combinations.

[0015] According to a non-limiting aspect of the invention, the mobile production unit is constructed and arranged to mark the produced part by means of a unique production mark, said unique production mark having been inserted into the production file.

[0016] According to a non-limiting aspect of the invention, the mobile unit for digitizing a topology of a part and the mobile production unit are in the same container.

[0017] According to a non-limiting aspect of the invention, the mobile unit for digitizing a topology of a part is in a first container and the mobile production unit is in a second container.

[0018] According to a non-limiting aspect of the invention, the mobile production unit comprises additive manufacturing means, for example an additive printer.

[0019] According to a non-limiting aspect of the invention, the mobile production unit comprises subtractive production means, for example and in a non-limiting manner, a machining center, sawing, turning, sanding, grinding and / or drilling means.

[0020] According to a non-limiting aspect of the invention, the mobile production plant comprises means for reinforcing the walls of the container(s) constructed and arranged to withstand underwater pressure.

[0021] According to a non-limiting aspect of the invention, the mobile production plant comprises means for sealing the container(s).

[0022] Another aspect of the invention relates to a method of producing a part in a mobile production plant comprising a mobile unit for digitizing a topology of a part and a mobile production unit, the method comprising the steps of: • Digitize a topology of a part and construct a 3D digital file modeling the topology of the digitized part via said mobile unit for digitizing a topology of a part; • Establish a first secure connection between said mobile unit for scanning a topology of a part and a file sharing system remote from said mobile production plant; • Receive, in said file sharing system, the 3D digital file; • Reconstruct, from said 3D digital file, a production file of said digitized part; • Save, in said file sharing system, said production file; • Determine, via a second agent remote from said mobile production plant, a second hash value reflecting the content of said production file recorded in said file sharing system; • Record said second hash value in a central server remote from the mobile production plant and in a blockchain; • Select, from the central server, said production file and said mobile production unit; • Transmit a request for production of a part conforming to said selected production file, said production request being transmitted from said central server to a first agent embedded in said mobile production plant; • Establish a second secure connection between said first agent and said file sharing system hosting said production file; • Receive, via said first agent, said production file transmitted by said file sharing system; • Determine, via said first agent, a first hash value reflecting the content of said received production file; • Transmit, from said central server to said first agent, said second hash value or, from said first agent to said central server, said first hash value; • Comparing, by means of said first agent or said central server, said first determined hash value with said second determined hash value; • If said first and second determined hash values ​​are identical, trigger, by means of said selected mobile production unit, production of a part conforming to said production file.

[0023] According to a non-limiting aspect of the invention, the step of reconstructing, from the 3D digital file, a production file of said digitized part is executed by software means constructed and arranged to automatically reconstruct a production file from a 3D digital file generated by the mobile unit for digitizing a topology of a part.

[0024] According to a non-limiting aspect of the invention, the production file comprises a unique production mark. The unique production mark may have been inserted into the production file when saving the production file in the file sharing system.

[0025] The invention and its various applications will be better understood upon reading the following description and examining the accompanying figures.

[0026] [Fig-1] schematically illustrates a mobile production plant according to a non-limiting aspect of the invention.

[0027] [Fig.2] illustrates, in a schematic manner, a step diagram of a non-limiting mode of implementation of a method for producing a part in a mobile production plant comprising a mobile unit for digitizing a topology of a part and a mobile production unit according to the invention.

[0028] [Fig. 2] illustrates a mobile production plant 1 according to a non-limiting aspect of the invention.

[0029] More particularly, the mobile production plant 1 comprises a mobile unit 2 for scanning a topology of a part arranged in a first container 3 and a mobile production unit 4 arranged in a second container 5.

[0030] The mobile unit 2 for scanning a topology of a part may for example comprise a scanner 6.

[0031] The mobile production unit 4 may, in a non-limiting manner, comprise additive manufacturing means, for example an additive printer, and / or subtractive production means, for example a machining center, sawing, turning, sanding, grinding and / or drilling means.

[0032] In a non-limiting manner, each of the first and second containers 3, 5 can be loaded onto a trailer of a truck, a train car, a boat or an aircraft and thus be transported from one location to another. It follows that the production plant Mobile 1 can be brought as close as possible to a theatre of operation. Advantageously, the transport time between Mobile 1 production plant and the location where the damaged equipment on which a part needs to be replaced is located is almost zero.

[0033] According to another embodiment not illustrated, the mobile unit 2 for scanning a topology of a part and the mobile production unit 4 are arranged in the same container.

[0034] According to a non-limiting implementation, the mobile production plant 1 comprises reinforcement means (not illustrated) for the walls of the containers 3, 5 constructed and arranged to withstand underwater pressure. These reinforcement means may be formed by metal hoops arranged inside the containers in order to prevent deformation of the walls of the latter.

[0035] According to a non-limiting implementation, the mobile production plant 1 comprises means (not illustrated) for sealing the containers 3, 5. Thus, water cannot enter the mobile production plant 1 and the internal pressure can be regulated. The mobile production plant 1 according to this aspect of the invention can therefore be arranged in the seabed to repair a submarine or in space to repair a satellite.

[0036] The mobile unit 2 for scanning a topology of a room may comprise a scanner 6 using a laser, laser triangulation and / or structured light. This mobile unit 2 for scanning a topology of a room is constructed and arranged to scan a room in three dimensions and construct a 3D digital file digitally modeling the topology of the scanned room. The scanned room may be a damaged part of equipment of a rescuer intervening in an isolated area.

[0037] The mobile scanning unit 2 of a room topology is constructed and arranged to establish a first secure connection C1 with a file sharing system 7 remote from the mobile scanning unit 2 of a room topology. In other words, the file sharing system 7 is not located near the theater of operation.

[0038] The file sharing system 7 hosts in particular part production files and can be, for example, of the SharePoint type or of the SFTP type (for Secure File Transfer Protocol in English).

[0039] The mobile unit 2 for scanning a topology of a part is also constructed and arranged to transmit, via the first secure connection C1, the 3D digital file modeling the topology of the scanned damaged part to the file sharing system 7.

[0040] The first secure connection Cl established between the mobile unit 2 for scanning a topology of a part and the file sharing system 7 makes it possible to protect the 3D digital file against illicit appropriation.

[0041] This 3D digital file is transmitted to the file sharing system 7 so that a production file is reconstructed from the 3D digital file. This reconstruction can be carried out by an engineer using CAD (Computer Aided Design) type software or by software means constructed and arranged to automatically reconstruct a production file from a 3D digital file obtained by the mobile scanning unit 2 of a topology of a part.

[0042] Throughout the text, a part production file designates a set of digital codes adapted to be able to be directly or indirectly interpreted by a machine, such as a computer, a numerically controlled machine, an additive manufacturing machine, and generally any machine equipped with a microprocessor. In the context of the invention, the creator of the file or his / her rightful owner intends to control access to and use of the part production file. Such a part production file is, for example, a machining file intended for a machining center or a printing file intended for an additive manufacturing machine, such as a 3D printer.

[0043] The mobile production plant 1 advantageously comprises a first agent 8 constructed and arranged to establish a second secure connection C2 with the file sharing system 7 hosting the production file having been reconstructed from the 3D digital file transmitted by the mobile digitization unit 2 of a topology of a part.

[0044] This first agent 8 is also constructed and arranged to receive, via the second secure connection C2, the production file hosted by the file sharing system 7.

[0045] The first agent 8 is also constructed and arranged to determine a first hash value reflecting the content of the received production file.

[0046] According to a first non-limiting implementation, the first agent 8 is further constructed and arranged to receive, from a central server 9 remote from the mobile production plant 1 (in other words, remote from the theater of operation), a second hash value reflecting the content of the production file hosted in the file sharing system 7. The second hash value was determined, when saving the production file in the file sharing system 7, by a second agent 10 and recorded in the central server 9 as well as in a blockchain 11.

[0047] More particularly, this second agent 10 is remote from the mobile production plant 1 (therefore remote from the theater of operation) and communicates with the file sharing system 7 in order to assign a second hash value as soon as the production file is saved in the file sharing system 7.

[0048] The second agent 10 also communicates with the central server 9 and the blockchain 11 in order to record the second hash value there.

[0049] According to a second different non-limiting implementation, instead of being constructed and arranged to receive, from the central server 9, the second hash value, the first agent 8 can be constructed and arranged to transmit, to the central server 9, the first hash value.

[0050] According to the first implementation, the first agent 8 is also constructed and arranged to compare the first determined hash value to the second determined hash value.

[0051] According to the second implementation, the first agent 8 is constructed and arranged to receive from the central server 9 a result of a comparison of the first determined hash value with the second determined hash value. According to this implementation, the comparison of the first determined hash value with the second determined hash value was carried out by the central server 9.

[0052] According to a non-limiting implementation, the mobile production unit 4 is constructed and arranged to, if the first and second determined hash values ​​are identical, trigger production of a part conforming to the production file.

[0053] Thus, the part produced actually corresponds to the plan contained in the production file reconstructed from the 3D digital file from the mobile scanning unit 2 of a topology of a part. The part is directly produced in the theater of operation, which considerably reduces the time required to obtain a replacement part. Indeed, the transport time is almost zero and production times are reduced.

[0054] Furthermore, since the two hash values ​​are determined by two separate and distant computer agents 8, 10, if the production file received by the first agent 8 is corrupted, the production cannot be carried out. Similarly, if one of the two computer agents 8, 10 is corrupted, the production cannot be carried out.

[0055] Furthermore, the mobile production unit 4 may be constructed and arranged to mark the produced part by means of a unique production mark, the unique production mark having been inserted into the production file when it is recorded, for example by the file sharing system 7.

[0056] [Fig. 2] illustrates the steps of a method 100 for producing a part in a mobile production plant 1 comprising a mobile unit 2 for scanning a topology of a part and a mobile production unit 4 as illustrated in [Fig. 1].

[0057] The method 100 comprises a first step of digitizing 101 a topology of a part and constructing a 3D digital file modeling the topology of the digitized part. This step 101 is executed via the mobile unit 2 for digitizing a topology of a part.

[0058] The method 100 also comprises a step 102 of establishing a first secure connection C1 between the mobile unit 2 for scanning a topology of a room and the file sharing system 7. This first secure connection C1 can be ensured by providing an identifier formed, for example, by a user name and a password.

[0059] As soon as the first secure connection C1 is established, the method 100 comprises a step of receiving 103, in the file sharing system 7, the 3D digital file modeling the topology of the digitized part, this 3D digital file having been created by the mobile digitization unit 2 of a topology of a part, and more particularly by the scanner 6.

[0060] Then, the method 100 comprises a step of reconstructing 104, from the 3D digital file, a production file of the digitized part. This reconstruction can be carried out by an engineer using CAD type software or by software means constructed and arranged to automatically reconstruct a production file from a 3D digital file obtained by the mobile digitization unit 2 of a topology of a part.

[0061] Once the production file is created, the method 100 comprises a step of recording 105, in the file sharing system 7, the production file.

[0062] The second agent 10 then determines 106 a second hash value reflecting the content of the production file hosted in the file sharing system 7.

[0063] Then, the method 100 comprises a step of recording 107 the second hash value in the central server 9 and in the block chain 11.

[0064] The method 100 also comprises a step of selecting 108, from the central server 9, the production file and the mobile production unit 4 in which the part is to be produced. This makes it possible to ensure that the part is produced close to the theater of operation.

[0065] This selection can be carried out via a web interface connected to the central server 9. According to this implementation, by connecting to the web interface, the operator can select the production file from a plurality of production files proposed by the central server 9 and select the mobile production plant 1 from a plurality of production plants.

[0066] This central server 9 is further constructed and arranged to transmit 109 a request for production of a part conforming to the selected production file to the first agent 8 on board the mobile production unit 4.

[0067] When the request for production of a part is received by the first agent 8, the method 100 executes a step of establishing 110 a second secure connection C2 between the first agent 8 and the file sharing system 7 hosting the production file. This second secure connection C2 can be ensured by providing an identifier formed, for example, by a user name and a password.

[0068] Once this second secure connection C2 is established, the method 100 comprises a step, for the first agent 8, of receiving 111 the production file transmitted by the file sharing system 7, then a step of determining 112 via the first agent 8, a first hash value reflecting with certainty the content of said received production file.

[0069] According to a first implementation, the method 100 also comprises a step of transmitting 113, from the central server 9 to the first agent 8, the second hash value. This second hash value accurately translates the content of the production file as it was designed.

[0070] According to a second implementation, the method 100 comprises a step of transmitting 113, from the first agent 8 to the central server 9, the first hash value

[0071] According to the first implementation, the method 100 comprises a step of comparing 114, by means of the first agent 8, the first determined hash value with the second determined hash value.

[0072] According to the second implementation, the method 100 comprises a step of comparing 114, by means of the central server 9, the first determined hash value with the second determined hash value.

[0073] If and only if the content of the production file hosted on the file sharing system 7 and the content of the production file received by the first agent 8 are identical, the first and second hash values ​​are identical.

[0074] Thus, if the first and second hash values ​​are identical, the method 100 comprises a step of triggering 115, by means of the selected mobile production unit 4, a production of a part conforming to the production file.

[0075] The method 100 according to this aspect of the invention thus makes it possible to assure the user that the part produced actually corresponds to the plan of the part defined in the production file which is recorded on the file sharing system 7.

[0076] In a non-limiting implementation, the production file includes a unique production mark. This unique production mark may have been inserted into the production file when saving the production file to the file sharing system 7.

[0077] Thus, when the part is produced by the mobile production unit 4, if the production file includes a unique production mark, this will be transferred to the part produced. This unique production marking is different for each part produced.

[0078] In a non-limiting manner, this marking may be formed by an alphanumeric code or an image marked on one or more predetermined zone(s) that the part comprises.

[0079] According to another non-limiting implementation, the marking may be formed by altering one or more of the layers of the part produced by 3D printing, this alteration reflecting the unique production mark.

[0080] Being different for each part, this marking subsequently makes it possible to precisely identify the origin of the part when the latter is used.

[0081] In a non-limiting implementation, the production file includes a limitation on the number of parts that can be produced. This makes it possible to limit the quantity of parts produced.

[0082] In this non-limiting example embodiment, when a part conforming to the selected production file is produced, the method 100 comprises the steps of: • Determine 116 a production confirmation via the first agent 8; • Record 117 the production confirmation in the central server 9; to do this the first agent 8 transmits the production confirmation to the central server 9; and • Record 118 the production confirmation in the blockchain 11; to do this the central server 9 transmits the production confirmation to the blockchain 11.

[0083] Thus, traceability of the number of parts produced is achieved by the blockchain 11. In a non-limiting manner, this production confirmation may for example include information making it possible to identify a 3D printer used, a manufacturing date, a number of parts produced and an operator name.

[0084] Furthermore, the method 100 comprises the steps of: • Record 119 the first determined hash value in the central server 9; to do this the first agent 8 transmits the first hash value to the central server 9, then • Record 120 the first determined hash value in the block chain 11; to do this the central server 9 transmits the first hash value to the block chain 11.

[0085] Furthermore, when a part conforming to the selected production file is produced, the method 100 may comprise the steps of: • Determine 121 a conformity report of the part produced via the first agent 8; • Record 122 the conformity report of the part produced in the central server 9; to do this the first agent 8 transmits the conformity report to the central server 9; • Record 123 the conformity report of the produced part in the blockchain 11; to do this the central server 9 transmits the conformity report to the blockchain 11.

[0086] According to this embodiment, the invention can provide information on the conformity, in other words on the quality, of the part produced by the mobile production unit 4 by reading sensors. In particular, each 3D printer has sensors making it possible to control and monitor the production of the part. Reading the data from the sensors and writing this data to the central server 9 provides the central server 9 with information on the conformity of the part produced. This information is accessible by a user via the web browser.

[0087] This makes it possible, for example, to verify that the part produced meets predetermined criteria, for example in the case of a standardized part that must meet certain specifications. The invention therefore makes it possible, according to this variant, to remotely certify the conformity of the parts produced by reading the sensors and comparing the data provided by these sensors with predetermined nominal values.

[0088] Furthermore, if a drift in the conformity of the parts produced by a specific mobile production unit 4 occurs, the manager of the mobile production unit 4 can, for example by connecting to the central server 9 via the web browser, notice it. He will actually be able to consult the manufacturing history of this specific mobile production unit 4 and notice a drift in manufacturing precision. He will then be able to remedy this by adjusting or replacing this specific mobile production unit 4.

[0089] Furthermore, writing this data in the blockchain 11 provides traceability relating to the conformity of the part produced.

[0090] Indeed, the block chain 11 is distributed and is associated with a protocol for writing / reading and cryptographic validation of transactions carried out with the central server 9. Such a block chain 11 is better known by its English name of blockchain. This block chain 11 thus forms a register of transactions, replicated on one or more machines linked together by a peer-to-peer network. These machines constitute nodes and the communication between the nodes is encrypted and guarantees the identity of the sender and the recipient. When a node wants To add a new transaction to the ledger, a consensus is reached to determine where and when this transaction should be entered into the ledger. This consensus constitutes a block. In practice, a block groups together several transactions.

[0091] According to the invention, the blockchain 11 is used to list all the transactions received by the central server 9, and in particular: • The second hash value assigned by the second agent 10 to a production file reconstructed from a 3D digital file; • The first hash value assigned by the first agent 8 to the production file received by the first agent 8 from the mobile production plant 1; • The mobile production unit 4 selected to produce the part; • Actual production of a part conforming to the production file selected; • A conformity report of the part produced; and • A number of pieces produced.

[0092] The various aspects of the invention mentioned above have numerous advantages. Among these, we can cite: • Produce a spare part close to a location where a part needs to be replaced; • Trace the use made of production files transmitted from the file sharing system 7; • Guarantee the inviolability of production files transmitted to the mobile production unit 4; • Guarantee the unaltered nature of production files transmitted to the mobile production unit 4; • Authenticate each of the parties involved in the operation of selecting, transmitting and manufacturing the part production files; • Provide information on the manufacturing quality of parts produced by mobile production unit 4; • Identify each piece produced using a unique production mark.

Claims

1. Claims Mobile production plant (1) characterized in that it comprises: - A mobile unit (2) for digitizing a topology of a room constructed and arranged for: • Digitize a topology of a part and build a 3D digital file modeling the topology of the digitized part; • Establish a first secure connection (Cl) with a file sharing system (7) remote from said mobile production plant (1); • Transmit, via said first secure connection (Cl), said 3D digital file to said file sharing system (7); - A first agent (8) built and arranged for: • Establish a second secure connection (C2) with said file sharing system (7), said file sharing system (7) hosting a production file having been reconstructed from said transmitted 3D digital file; • Receive, via said second secure connection (C2), said production file; • Determine a first hash value reflecting the content of said production file received; • Receiving, from a central server (9) remote from said mobile production plant (1), a second hash value reflecting the content of said production file hosted in said file sharing system (7) or transmitting to said central server (9) said first hash value, said second hash value having been determined by a second agent (10) and recorded in said central server (9) as well as in a blockchain (11); said second agent (10) being remote from said mobile production plant (1); • Comparing said first determined hash value with said second determined hash value or receiving from said central server (9) a result of a comparison of said first determined hash value with said second determined hash value; - A mobile production unit (4) constructed and arranged to, if said first and second determined hash values ​​are identical, trigger production of a part conforming to the production file.

2. Mobile production plant (1) according to claim 1, characterized in that the mobile production unit (4) is constructed and arranged to mark the produced part by means of a unique production mark, said unique production mark having been inserted into the production file.

3. Mobile production plant (1) according to any one of the preceding claims, characterized in that the mobile unit (2) for scanning a topology of a part and the mobile production unit (4) are in the same container.

4. Mobile production plant (1) according to any one of claims 1 or 2, characterized in that the mobile unit (2) for digitizing a topology of a part is in a first container (3) and the mobile production unit (4) is in a second container (5).

5. Mobile production plant (1) according to any one of claims 3 or 4, characterized in that it comprises means for reinforcing the walls of the container(s) (3, 5) constructed and arranged to withstand underwater pressure.

6. Mobile production plant (1) according to any one of claims 3 to 5, characterized in that it comprises means for sealing the container(s) (3, 5).

7. Mobile production plant (1) according to any one of the preceding claims, characterized in that the mobile production unit (4) comprises additive production means and / or subtractive production means.

8. Method (100) of producing a part in a mobile production plant (1) comprising a mobile scanning unit (2) of a topology of a part and a mobile production unit (4), said method (100) comprising the steps of: - Digitizing (101) a topology of a part and constructing a 3D digital file modeling the topology of the digitized part via said mobile unit for digitizing (2) a topology of a part - Establishing (102) a first secure connection (Cl) between said mobile unit for scanning (2) a topology of a part and a file sharing system (7) remote from said mobile production plant (1); - Receive (103), in said file sharing system (7), said 3D digital file; - Reconstruct (104), from said 3D digital file, a production file of said scanned part; - Save (105), in said file sharing system (7), said production file; - Determine (106), via a second agent (10) remote from said mobile production plant (1), a second hash value reflecting the content of said production file recorded in said file sharing system (7); - Recording (107) said second hash value in a central server (9) remote from the mobile production plant (1) and in a blockchain (11); - Select (108), from the central server (9), said production file and said mobile production unit (4); - Transmitting (109) a request for production of a part conforming to said selected production file, said production request being transmitted from said central server (9) to a first agent (8) on board said mobile production plant (1); - Establish (110) a second secure connection (C2) between said first agent (8) and said file sharing system (7) hosting said production file; - Receive (111), via said first agent (8), said production file transmitted by said file sharing system (7);

9.

10. - Determine (112), via said first agent (8), a first hash value reflecting the content of said received production file; - Transmitting (113), from said central server (9) to said first agent (8), said second hash value or, from said first agent (8) to said central server (9), said first hash value; - Comparing (114), by means of said first agent (8) or said central server (9), said first determined hash value with said second determined hash value; - If said first and second determined hash values ​​are identical, trigger (115), by means of said selected mobile production unit (4), production of a part conforming to said production file. Method (100) according to the preceding claim, characterized in that the step of reconstructing (104), from the 3D digital file, a production file of said digitized part is executed by software means constructed and arranged to automatically reconstruct a production file from a 3D digital file generated by the mobile digitization unit (2) of a topology of a part. Method (100) according to any one of claims 8 or 9, characterized in that the production file comprises a unique production mark.

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