JP7135893B2 - Vehicle information management system - Google Patents

Description

The present invention relates to a vehicle information management system that manages information about vehicles.

2. Description of the Related Art Conventionally, in order to ensure the traceability of a vehicle, it has been required to record various information regarding the vehicle in manufacturing, selling and operating the vehicle. Patent Literature 1 describes a system for recording and managing information on parts used when servicing a vehicle. When a problem or the like occurs in a vehicle, there is a possibility that the cause can be identified by tracing the recorded information.

JP 2010-64662 A

A plurality of entities (manufacturing companies, sales companies, customers, etc.) record information in the manufacture, sale and operation of vehicles. However, if information recorded on a server managed by multiple entities can be freely edited by multiple entities, the recorded information may be falsified. decreases.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vehicle information management system capable of enhancing the reliability of vehicle traceability based on vehicle information recorded by a plurality of entities. .

A vehicle information management system according to one aspect of the present invention includes three or more information processing devices managed by different entities, and each of the three or more information processing devices indicates data related to vehicle manufacture, sales, and operation. a storage unit that stores vehicle information; a transmission unit that transmits a determination request including the vehicle information to the other information processing device; a reception unit that receives the determination request from the other information processing device; A storage control unit configured to store the vehicle information included in the determination request received by the reception unit, wherein at least one of the three or more information processing devices is stored in the storage unit. and a determination unit that determines whether or not the vehicle information included in the determination request has been rewritten by comparing the vehicle information included in the determination request with the vehicle information included in the determination request.

The storage control unit stores the vehicle information included in the determination request received by the receiving unit in the storage unit on condition that the determination unit determines that the vehicle information included in the determination request has not been rewritten. may be stored.

The storage control unit stores the information received by the receiving unit in the storage unit on condition that the determination request is transmitted within a recordable period associated with the information processing apparatus that transmitted the determination request. The vehicle information included in the determination request may be stored.

If the entity managing the information processing device that has transmitted the determination request is a manufacturing entity that manufactures a vehicle, the recordable period is set when the components that make up the vehicle are assembled into the vehicle, or when the entity is In the case of the manufacturing entity or the sales entity that sells the vehicle, the period may be the time until the vehicle is shipped or the vehicle is delivered.

The determination unit may determine whether or not the vehicle information included in the determination request has been rewritten when causing the storage unit to store the vehicle information included in the determination request received by the reception unit. .

The determination unit may determine whether or not the vehicle information included in the determination request has been rewritten when the current time satisfies a predetermined condition or when a predetermined instruction is received.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in the ability to improve the reliability of the traceability of the vehicle based on the vehicle information recorded by several subjects.

1 is a schematic diagram of a vehicle information management system according to an embodiment; FIG. 1 is a block diagram of a vehicle information management system according to an embodiment; FIG. 1 is a schematic diagram of a vehicle information management method executed by a vehicle information management system according to an embodiment; FIG. FIG. 4 is a schematic diagram for explaining a recordable period; It is a figure which shows the flowchart of the vehicle information management method (information processing method) which the vehicle information management system which concerns on embodiment performs. It is a schematic diagram of the vehicle information management method which the vehicle information management system which concerns on a modification performs.

[Overview of Vehicle Information Management System S]
FIG. 1 is a schematic diagram of a vehicle information management system S according to this embodiment. A vehicle information management system S includes three or more information processing devices 1 , a vehicle 2 , and an information terminal 3 . The number of information processing devices 1, vehicles 2, and information terminals 3 included in the vehicle information management system S is not limited. The vehicle information management system S may include devices such as other servers and terminals.

Three or more information processing apparatuses 1 are computers managed by different entities. The entity that manages the information processing device 1 is, for example, a manufacturing entity (parts supply company, automobile manufacturing company, etc.), a sales entity (automobile manufacturing company, automobile sales company, etc.), and an operating entity (customer, vehicle itself, maintenance company, etc.). is. Three or more information processing apparatuses 1 can communicate with each other via a network such as the Internet or a local area network.

The vehicle 2 is a vehicle whose vehicle information is managed by the vehicle information management system S, such as a passenger car or a truck. The vehicle 2 may be in a state in the middle of manufacturing, or may be in a state after manufacturing is completed. The vehicle information of the vehicle 2 indicates data related to manufacturing, sales and operation of the vehicle. For example, the vehicle information may indicate at least one of identification information, shipping time, and assembly time of parts that configure the vehicle 2 . Further, for example, the vehicle information may indicate at least one of identification information of the vehicle 2, shipping time, sales information (sales destination and installation options), vehicle registration time, and warehousing time. Further, for example, the vehicle information may indicate at least one of the travel distance, vehicle speed, fuel efficiency, failure information, and repair information of the vehicle 2 .

The information terminal 3 is a computer for receiving input of vehicle information regarding the vehicle 2 . The information terminal 3 is, for example, a personal computer, a smart phone, a mobile terminal such as a tablet terminal. The information terminal 3 is associated with any one of the three or more information processing devices 1 and transmits the input vehicle information to any one of the three or more information processing devices 1 .

The information processing device 1 acquires vehicle information about the vehicle 2, transmits and receives newly acquired vehicle information to and from another information processing device 1, and records the information. At this time, the information processing device 1 determines whether or not the vehicle information has been illegally rewritten by comparing the already recorded vehicle information with the newly acquired vehicle information. As a result, the vehicle information management system S can ensure the identity of vehicle information among the plurality of information processing devices 1 and improve the reliability of vehicle traceability based on vehicle information.

[Configuration of vehicle information management system S]
FIG. 2 is a block diagram of the vehicle information management system S according to this embodiment. In FIG. 2, arrows indicate main data flows, and there may be data flows not shown in FIG. In FIG. 2, each block does not show the configuration in units of hardware (apparatus), but the configuration in units of functions. As such, the blocks shown in FIG. 2 may be implemented within a single device, or may be implemented separately within multiple devices. Data exchange between blocks may be performed via any means such as a data bus, network, or portable storage medium.

The information processing device 1 has a control unit 11 and a storage unit 12 . Control unit 11 includes information acquisition unit 111 , transmission unit 112 , reception unit 113 , determination unit 114 , and storage control unit 115 . The storage unit 12 has a vehicle information storage unit 121 and a recording condition storage unit 122 .

The storage unit 12 is a storage medium including a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk drive, and the like. The storage unit 12 stores programs executed by the control unit 11 in advance. The storage unit 12 may be provided outside the information processing apparatus 1, in which case data may be exchanged with the control unit 11 via a network.

The vehicle information storage unit 121 stores vehicle information indicating data relating to manufacturing, sales and operation of vehicles. The recording condition storage unit 122 stores recording conditions indicating conditions for recording vehicle information. The recording condition is information indicating a period during which the information processing apparatus 1 can record vehicle information. The vehicle information storage unit 121 and the recording condition storage unit 122 may each be a storage area on the storage unit 12 or may be a database configured on the storage unit 12 .

The control unit 11 is a processor such as a CPU (Central Processing Unit), for example, and by executing a program stored in the storage unit 12, an information acquisition unit 111, a transmission unit 112, a reception unit 113, a determination unit 114, and a storage unit. It functions as the control unit 115 . At least part of the functions of the control unit 11 may be performed by an electric circuit. Moreover, at least part of the functions of the control unit 11 may be executed by a program executed via a network.

The information processing apparatus 1 according to this embodiment is not limited to the specific configuration shown in FIG. The information processing device 1 is not limited to one device, and may be configured by connecting two or more physically separated devices by wire or wirelessly.

[Description of vehicle information management method]
A vehicle information management method executed by the vehicle information management system S according to this embodiment will be described in detail below. FIG. 3 is a schematic diagram of a vehicle information management method executed by the vehicle information management system S according to this embodiment. In the example of FIG. 3, three or more information processing apparatuses 1 include a first information processing apparatus 1A, a second information processing apparatus 1B and a third information processing apparatus 1C.

First, while the vehicle 2 is being manufactured or sold, the information terminal 3 acquires information on parts or the vehicle 2, and transmits the information to the first information processing device 1A via the network. At this time, for example, the information terminal 3 may acquire information on the part or the vehicle 2 by reading a code or wireless tag attached to the part or the vehicle 2 . Alternatively, the information terminal 3 may acquire information on the parts or the vehicle 2 by accepting input of information on the parts or the vehicle 2 from a user (that is, an operator of the information terminal 3).

In addition, while the vehicle 2 is in operation, a computer (ECU: Engine Control Unit, etc.) provided in the vehicle 2 collects the travel distance, vehicle speed, fuel consumption, failure information, etc. It is transmitted to the information processing device 1A.

In the first information processing device 1</b>A, the information acquisition unit 111 acquires new vehicle information D<b>1 that is newly stored regarding the manufacture, sale and operation of the vehicle from the vehicle 2 or the information terminal 3 . The information acquisition unit 111 stores the vehicle information D obtained by adding the new vehicle information D1 to the stored vehicle information D2 already stored in the vehicle information storage unit 121 .

The transmitting unit 112 transmits a determination request including the stored vehicle information D2 and the vehicle information D indicating the new vehicle information D1 together with the identification information of the first information processing device 1A to the other information processing devices 1B and 1C. The identification information of the first information processing device 1A is information that can identify the first information processing device 1A, such as an ID and a serial number.

Although the processing performed in the second information processing device 1B will be described below, the same processing is performed in the third information processing device 1C. In the second information processing device 1B, the reception unit 113 receives the determination request from the first information processing device 1A.

The determination unit 114 acquires from the recording condition storage unit 122 the recording condition associated with the identification information of the first information processing apparatus 1A, which is the transmission source of the determination request. The recording condition is information indicating a recordable period during which the vehicle information D can be recorded by each of the three or more information processing apparatuses 1 . The recordable period is set for each information processing device 1 , that is, for each entity that manages the information processing device 1 .

FIG. 4 is a schematic diagram for explaining the recordable period. The horizontal axis of FIG. 4 represents time. In the example of FIG. 4, the recordable period of the information processing device 1 managed by the manufacturer (parts supplier, automobile manufacturer, etc.) is from point A to point B. In FIG. For example, the recordable period of the information processing device 1 managed by the manufacturing subject is from the time when manufacturing of the part or vehicle 2 is started, when the part or vehicle 2 is shipped from the factory, or when the part or vehicle 2 is delivered to another subject. It is the period until the time to do. The recordable period may be a period until the parts are assembled to the vehicle 2 .

The recordable period of the information processing apparatus 1 managed by a sales entity (automobile manufacturing company, automobile sales company, etc.) is from point B to point C. FIG. For example, the recordable period of the information processing apparatus 1 managed by the sales entity is the period from when the vehicle 2 is started to be handled to when the vehicle 2 is shipped from the storage location or when the vehicle 2 is delivered to the customer.

The recordable period of the information processing device 1 managed by the operator (customer, vehicle itself, maintenance company, etc.) is from point C onward. For example, the recordable period of the information processing apparatus 1 managed by the operator is the period after the vehicle 2 is delivered to the operator.

Determination unit 114 proceeds to determine rewriting of vehicle information D on condition that a determination request is transmitted within a recordable period associated with first information processing apparatus 1A, which is the transmission source of the determination request. On the other hand, when the determination request is not transmitted within the recordable period associated with the first information processing apparatus 1A, which is the transmission source of the determination request, the determination unit 114 stores the vehicle information D included in the determination request in the vehicle information storage. The data is discarded without being stored in the unit 121 . At this time, the determination unit 114 may transmit information indicating that the vehicle information D included in the determination request has been discarded to the other information processing device 1 .

In this way, each information processing device 1 of the vehicle information management system S causes the vehicle information storage unit 121 to store only vehicle information transmitted within a recordable period set for each entity that manages the information processing device 1. . For example, it is abnormal that vehicle information about a vehicle 2 that has already been sold to a customer is newly transmitted from the manufacturer, and there is a high probability that the vehicle information is intended to be illegally rewritten. Therefore, the vehicle information management system S can limit the period during which each entity can transmit vehicle information, and can prevent unauthorized vehicle information transmitted at other timings from being stored.

Next, the determination unit 114 compares the vehicle information D stored in the vehicle information storage unit 121 with the vehicle information D included in the determination request received by the reception unit 113, thereby confirming the vehicle information D included in the determination request. Determine whether or not it has been illegally rewritten.

Specifically, the determination unit 114 stores the stored vehicle information D2 of the vehicle information D stored in the vehicle information storage unit 121 and the stored vehicle information D2 of the vehicle information D included in the determination request received by the reception unit 113. Compare with At this time, the determination unit 114 may compare the stored vehicle information D2 itself, or may compare hash values calculated according to a predetermined rule from the stored vehicle information D2.

When the stored vehicle information D2 of the vehicle information D stored in the vehicle information storage unit 121 matches the stored vehicle information D2 of the vehicle information D included in the determination request received by the receiving unit 113, the determining unit 114 determines that the vehicle information D included in the determination request has not been rewritten. On the other hand, when the stored vehicle information D2 of the vehicle information D stored in the vehicle information storage unit 121 and the stored vehicle information D2 of the vehicle information D included in the determination request received by the receiving unit 113 do not match , the determination unit 114 determines that the vehicle information D included in the determination request has been rewritten.

The storage control unit 115 stores the vehicle information D included in the determination request in the vehicle information storage unit 121 on the condition that the determination unit 114 determines that the vehicle information D included in the determination request received by the reception unit 113 has not been rewritten. Memorize. At this time, the storage control unit 115 may store the entire vehicle information D included in the determination request in the vehicle information storage unit 121, or store only the new vehicle information D1 of the vehicle information D included in the determination request in the vehicle information storage unit 121. 121 may be added.

On the other hand, when the determination unit 114 determines that the vehicle information D included in the determination request received by the reception unit 113 has been rewritten, the storage control unit 115 stores the vehicle information D included in the determination request in the vehicle information storage unit 121 . is discarded without being stored in the At this time, the storage control unit 115 may transmit information indicating that the vehicle information D included in the determination request has been discarded to the other information processing device 1 .

In this way, each information processing device 1 of the vehicle information management system S stores the vehicle information D (stored vehicle information D2) already stored in the vehicle information storage unit 121 and the vehicle information D (stored vehicle information D2) included in the received determination request. By comparing with the completed vehicle information D2), it is determined whether or not the vehicle information D has been rewritten. As a result, even if the vehicle information D already stored in one information processing device 1 has been illegally rewritten, it will not be stored in another information processing device 1 .

The vehicle information management system S may record the vehicle information D using known blockchain technology. That is, the storage control unit 115 regards the new vehicle information D1 included in the determination request as one block, and combines the new vehicle information D1 included in the determination request with the blocks already stored in the vehicle information storage unit 121. is added to the vehicle information storage unit 121 .

Specifically, the memory control unit 115 calculates a hash value and a nonce value that satisfy predetermined conditions based on the blocks already stored in the vehicle information storage unit 121 and the new vehicle information D1 included in the determination request. do. Then, the storage control unit 115 connects the new vehicle information D1 to which the calculated hash value and nonce value are added to the blocks already stored in the vehicle information storage unit 121 and stores the new vehicle information D1 in the vehicle information storage unit 121 . Any of the three or more information processing apparatuses 1 may calculate the hash value and the nonce value.

In this way, when vehicle information D is recorded using blockchain technology, it is necessary to recalculate the hash value of a series of past blocks in order to rewrite already recorded vehicle information D. rewriting becomes more difficult.

[Flow of Vehicle Information Management Method]
FIG. 5 is a diagram showing a flowchart of a vehicle information management method (information processing method) performed by the vehicle information management system S according to this embodiment. First, one of the information processing devices 1 (the first information processing device 1A in the example of FIG. 3) transmits a judgment request including the vehicle information D indicating the stored vehicle information D2 and the new vehicle information D1 to the information processing of the transmission source. Together with the identification information of the device 1, it is transmitted to the other information processing devices 1 (the second information processing device 1B and the third information processing device 1C in the example of FIG. 3). The flowchart of FIG. 5 is executed in each of one or a plurality of information processing apparatuses 1 to which determination requests are sent.

The receiving unit 113 receives a determination request from another information processing device 1 (S11). The determination unit 114 acquires from the recording condition storage unit 122 the recording conditions associated with the identification information of the information processing device 1 that has transmitted the determination request (S12).

If the determination request is not transmitted within the recordable period associated with the information processing device 1 that is the transmission source of the determination request (NO in S13), the determination unit 114 replaces the vehicle information D included in the determination request with the vehicle information. The data is discarded without being stored in the storage unit 121, and the process ends.

If the determination request is transmitted within the recordable period associated with the information processing device 1 that is the transmission source of the determination request (YES in S13), the determination unit 114 determines whether the vehicle stored in the vehicle information storage unit 121 The stored vehicle information D2 of the information D is compared with the stored vehicle information D2 of the vehicle information D included in the determination request received by the receiving unit 113 (S14).

If the stored vehicle information D2 of the vehicle information D stored in the vehicle information storage unit 121 and the stored vehicle information D2 of the vehicle information D included in the determination request received by the reception unit 113 match (YES in S15 ), the determination unit 114 determines that the vehicle information D included in the determination request has not been rewritten (S16). The storage control unit 115 stores the vehicle information D included in the determination request in the vehicle information storage unit 121 on the condition that the determination unit 114 determines that the vehicle information D included in the determination request received by the reception unit 113 has not been rewritten. Store (S17).

When the stored vehicle information D2 of the vehicle information D stored in the vehicle information storage unit 121 and the stored vehicle information D2 of the vehicle information D included in the determination request received by the reception unit 113 do not match (S15 NO), the determination unit 114 determines that the vehicle information D included in the determination request has been rewritten (S18). The storage control unit 115 discards the vehicle information D included in the determination request without storing it in the vehicle information storage unit 121, and terminates the process.

[Effect of this embodiment]
According to the vehicle information management system S according to the present embodiment, each information processing device 1 stores the vehicle information D (stored vehicle information D2) already stored in the vehicle information storage unit 121 and the vehicle information included in the received determination request. By comparing with the information D (stored vehicle information D2), it is determined whether or not the vehicle information D has been rewritten.

Since multiple information processing devices 1 distribute and manage common vehicle information D, even if one subject or a third party illegally rewrites vehicle information D stored in some of the information processing devices 1, The rewritten vehicle information D is discarded without being stored in the other information processing device 1 . Therefore, the reliability of vehicle traceability based on vehicle information can be enhanced.

In addition, since advanced security measures are not required to prevent access from third parties, the cost is low. Further, even if the vehicle information D stored in some of the information processing devices 1 is lost due to an accident or the like, the common vehicle information D is held in the other information processing devices 1, so fault tolerance is high.

[Modification]
In the above description, all the information processing devices 1 determine whether or not the vehicle information D has been illegally rewritten when storing the new vehicle information D1 included in the determination request in the vehicle information storage unit 121. In this modification, at least some of the information processing devices 1 determine whether or not the vehicle information D has been illegally rewritten at a predetermined timing.

FIG. 6 is a schematic diagram of a vehicle information management method executed by the vehicle information management system S according to this modification. Differences from FIG. 3 will be mainly described below. In this modification, the information processing apparatuses 1A, 1B, and 1C store the received vehicle information D in the vehicle information storage unit 121 without determining whether or not the received vehicle information D has been illegally rewritten. In this modification, the information processing apparatuses 1A, 1B, and 1C may receive the stored vehicle information D2 and the new vehicle information D1 and store them in the vehicle information storage unit 121, or may receive only the new vehicle information D1. may be additionally written in the vehicle information storage unit 121.

In the state of FIG. 6, the vehicle information storage unit 121 of each of the information processing apparatuses 1A, 1B, and 1C has already stored the vehicle information D indicating the stored vehicle information D2 and the new vehicle information D1.

In at least one information processing device 1 (the second information processing device 1B in the example of FIG. 6) among the three or more information processing devices 1, the receiving unit 113 receives the vehicle information D from the other information processing devices 1A and 1C. receive a decision request containing Receiving section 113 may periodically receive determination requests from other information processing apparatuses 1A and 1C, or may receive determination requests from other information processing apparatuses 1A and 1C at the timing when determination section 114 performs determination. may

When the current time satisfies a predetermined condition (once a day, once a month, etc.), or when a predetermined instruction is received from the user (that is, the operator of the information processing device 1), the determination unit 114 By comparing the vehicle information D stored in the vehicle information storage unit 121 with the vehicle information D included in the determination request received from each of the other information processing apparatuses 1A and 1C, the vehicle information D included in the determination request is rewritten. Determine whether or not A specific determination method is the same as the method described with reference to FIG. Furthermore, the determination unit 114 compares the vehicle information D included in the determination requests received from the plurality of information processing apparatuses 1A and 1C to determine whether or not the vehicle information D included in the determination requests has been rewritten. good too.

As described above, in the vehicle information management system S according to the present modification, at least some of the information processing devices 1 determine whether or not the vehicle information D has been illegally rewritten at a predetermined timing. Therefore, each information processing device 1 does not need to determine whether or not the vehicle information D has been illegally rewritten every time it receives the vehicle information D, so the processing load for determination can be reduced.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. be. For example, specific embodiments of device distribution/integration are not limited to the above-described embodiments. can be done. In addition, new embodiments resulting from arbitrary combinations of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment caused by the combination has the effect of the original embodiment.

The processor of the information processing device 1 is the subject of each step (process) included in the vehicle information management method shown in FIG. That is, the processor of the information processing device 1 reads a program for executing the vehicle information management method shown in FIG. to execute the vehicle information management method shown in . Some steps included in the vehicle information management method shown in FIG. 5 may be omitted, the order between steps may be changed, and a plurality of steps may be performed in parallel.

S vehicle information management system 1 information processing device 2 vehicle 11 control unit 111 information acquisition unit 112 transmission unit 113 reception unit 114 determination unit 115 storage control unit 12 storage unit 121 vehicle information storage unit

Claims (6)

Having three or more information processing devices managed by different entities,
Each of the three or more information processing devices,
a storage unit that stores vehicle information indicating data related to vehicle manufacture, sales, and operation;
a transmission unit that transmits a determination request including the vehicle information to the other information processing device;
a receiving unit that receives the determination request from the other information processing device;
a storage control unit that causes the storage unit to store the vehicle information included in the determination request received by the reception unit;
with
At least one of the three or more information processing devices compares the vehicle information stored in the storage unit with the vehicle information included in the determination request to obtain the vehicle information included in the determination request. vehicle information management system, further comprising a determination unit that determines whether or not has been rewritten. The storage control unit stores the vehicle information included in the determination request received by the receiving unit in the storage unit on condition that the determination unit determines that the vehicle information included in the determination request has not been rewritten. 2. The vehicle information management system according to claim 1, wherein: The storage control unit stores the information received by the receiving unit in the storage unit on condition that the determination request is transmitted within a recordable period associated with the information processing apparatus that transmitted the determination request. 3. The vehicle information management system according to claim 1, wherein the vehicle information included in the determination request is stored. If the entity managing the information processing device that has transmitted the determination request is a manufacturing entity that manufactures a vehicle, the recordable period is set when the components that make up the vehicle are assembled into the vehicle, or when the entity is 4. The vehicle information management system according to claim 3, wherein in the case of said manufacturer or sales entity that sells vehicles, said period is a period until said vehicle is shipped or said vehicle is delivered. The determining unit determines whether or not the vehicle information included in the determination request has been rewritten when causing the storage unit to store the vehicle information included in the determination request received by the receiving unit. 5. The vehicle information management system according to any one of 1 to 4. 5. The determination unit determines whether or not the vehicle information included in the determination request has been rewritten when the current time satisfies a predetermined condition or when a predetermined instruction is received. The vehicle information management system according to any one of 1.

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