JP2024036191A - Component management system, component management method, and component management program - Google Patents

Abstract

To manage a change history of a component of a device.SOLUTION: A component management system is attached to a component of a device and communicates with a part sensor, so as to acquire monitoring data of the component. The monitoring data is compared with reference data so as to enable evaluation of an exchange history of the component.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a parts management system, a parts management method, and a parts management program.

For example, in order to maintain the performance of equipment such as turbines and ships, it is necessary to perform maintenance such as replacing worn out components at predetermined timings. For example, Patent Document 1 discloses an inspection and repair support device that can present an appropriate repair policy regarding inspection and repair of high-temperature parts of a gas turbine.

Japanese Patent Application Publication No. 2014-174891

When replacing component parts during maintenance, it is best to use genuine products recommended by the manufacturer (parts identical to the original parts, genuine replacement parts, etc.) under the control of the equipment manufacturer. . On the other hand, substitute products such as non-genuine products that are cheaper than genuine products may be distributed in the market. Some users wishing to reduce costs related to maintenance may, at their discretion, replace components with such cheaper alternatives. In this case, there is a risk that the performance of the equipment after maintenance may deteriorate or malfunction may occur due to the use of a substitute. Therefore, on the equipment manufacturer's side, it is an important issue in terms of product management whether or not genuine products are appropriately used for the component parts of equipment used by users. However, there has been no means for managing whether genuine products are being appropriately used as component parts in each device available to users.

At least one embodiment of the present disclosure has been made in view of the above-mentioned circumstances, and aims to provide a parts management system, a parts management method, and a parts management program that can manage the change history of component parts of a device. do.

In order to solve the above problems, a parts management system according to at least one embodiment of the present disclosure,
a first communication unit attached to a component of the device for communicating with the parts sensor;
a monitoring data acquisition unit for acquiring monitoring data of the component via the first communication unit;
a reference data acquisition unit that obtains reference data of the monitoring data corresponding to the monitoring data;
a replacement history evaluation unit for evaluating the replacement history of the component by comparing the monitoring data with the reference data;
Equipped with.

In order to solve the above problems, a parts management method according to at least one embodiment of the present disclosure includes:
acquiring monitoring data of the component through a first communication unit attached to the component of the device and communicating with the parts sensor;
obtaining reference data of the monitoring data corresponding to the monitoring data;
evaluating the replacement history of the component by comparing the monitoring data with the reference data;
Equipped with.

In order to solve the above problems, a parts management program according to at least one embodiment of the present disclosure,
computer equipment,
acquiring monitoring data of the component through a first communication unit attached to the component of the device and communicating with the parts sensor;
obtaining reference data of the monitoring data corresponding to the monitoring data;
evaluating the replacement history of the component by comparing the monitoring data with the reference data;
is possible.

According to at least one embodiment of the present disclosure, it is possible to provide a parts management system, a parts management method, and a parts management program that can manage change history of component parts of a device.

1 is an overall configuration diagram of a parts management system according to an embodiment. FIG. 2 is a block diagram showing the functional configuration of FIG. 1. FIG. 3 is a flowchart illustrating a parts management method according to an embodiment. FIG. 1 is a schematic diagram showing an example of application of a parts management system. FIG. 7 is a schematic diagram showing another application example of the parts management system. FIG. 7 is a schematic diagram showing another application example of the parts management system.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the configurations described as embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, and are merely illustrative examples.

FIG. 1 is an overall configuration diagram of a parts management system 1 according to an embodiment, and FIG. 2 is a block diagram showing the functional configuration of FIG. 1.

A parts management system 1 according to at least one embodiment of the present disclosure targets a specific component 4 built into a device 2 that is an assembled product. The component part 4 is, for example, a consumable item, and is a part to be replaced during maintenance performed at a predetermined timing to maintain the performance of the device 2. In this embodiment, the component 4 is housed inside the casing 5, but may be exposed outside the casing 5.

A parts sensor 6 is attached to the component 4. The parts sensor 6 is a device capable of outputting the monitoring data Ds, and may be configured to output the monitoring data Ds spontaneously, or may be configured to output the monitoring data Ds in response to an external request. may be configured. The monitoring data Ds includes information related to the replacement history of the component parts 4 in the device 2. The monitoring data Ds may take various forms as described later, but for example, the monitoring data Ds may be identification information for identifying the component 4, or may be used to identify the component 4 when the component 4 is replaced. This is information for determining whether the peripheral parts 3 of 4 (for example, other components that require removal, opening and closing in order for a worker to access the component 4 when replacing the component 4) have been removed. It's okay.

The parts management system 1 is a system for managing the component parts 4 of the device 2 using monitoring data from the parts sensor 6. In this embodiment, one aspect of the parts management system 1 is configured as a portable terminal 10 that can communicate with a parts sensor 6 via a wireless communication network 8 .

The portable terminal 10 includes, for example, a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a computer-readable storage medium, and the like. A series of processes for realizing various functions is stored in a storage medium, etc. in the form of a program, for example, and the CPU reads this program into a RAM, etc., and executes information processing and arithmetic processing. By doing so, various functions are realized. Note that the program may be pre-installed in a ROM or other storage medium, provided as being stored in a computer-readable storage medium, or distributed via wired or wireless communication means. etc. may also be applied. Computer-readable storage media include magnetic disks, magneto-optical disks, CD-ROMs, DVD-ROMs, semiconductor memories, and the like.

The portable terminal 10 is a terminal owned by a worker who performs maintenance on the equipment 2, and as shown in FIG. It includes a replacement history evaluation section 18, a performance deterioration risk evaluation section 20, and a notification section 22.

The portable terminal 10 can be used for purposes other than parts management by having functions useful for maintenance workers (for example, displaying maintenance-related procedure manuals, inputting and outputting maintenance performance records, etc.). may be configured.

Moreover, at least a part of each block included in the portable terminal 10 in FIG. 2 may be configured as a server device that can communicate with the portable terminal 10. In this case, by implementing part of the configuration of the portable terminal 10 in the server device, the processing load on the portable terminal 10 can be reduced, and more sophisticated arithmetic processing can be performed in the server device. Further, the calculation results of the parts management system 1 can be handled by the server device, and a third party other than the worker who owns the portable terminal 10 can make various decisions based on the calculation results.

The first communication unit 12 is configured to transmit and receive various information by communicating with a parts sensor 6 attached to a component of the device. The first communication unit 12 is capable of communicating with the parts sensor 6 via a wireless communication network, and receives monitoring data Ds output from the parts sensor 6. Furthermore, if the parts sensor 6 is designed to output the monitoring data Ds in response to a request, it is also possible to transmit a request signal to the parts sensor 6.

The monitoring data acquisition unit 14 is configured to acquire monitoring data Ds via the first communication unit 12. The monitoring data Ds received by the first communication unit 12 is acquired by the monitoring data acquisition unit 14 and can be used for various calculations related to parts management. Further, the monitoring data acquisition unit 14 may acquire the monitoring data Ds acquired from the first communication unit 12 by storing the monitoring data Ds in a storage device (not shown) such as a memory, and reading the monitoring data Ds from the storage device.

The reference data acquisition unit 16 is configured to obtain reference data Dref. The reference data Dref is reference data that is used as a reference when comparing with the monitoring data Ds to evaluate the replacement history of the component 4. When the monitoring data Ds is identification information for identifying the component part 4, the reference data Dref is the part that should be used in the device 2 (for example, the original part used in the initial state at the time of production). It is possible to determine whether or not an appropriate part is being used as the component 4 by using information regarding the genuine parts (such as regular parts) and comparing it with the monitoring data Ds. Further, when the monitoring data Ds is information for determining whether or not the peripheral parts 3 of the component 4 are removed when the component 4 is replaced, the reference data Dref determines the information. It may be a threshold value for

The replacement history evaluation unit 18 is configured to evaluate the replacement history R of the component 4 by comparing the monitoring data Ds with the reference data Dref. The evaluation result of the replacement history evaluation unit 18 includes information regarding the replacement history of the component 4, such as the fact that the component 4 was replaced from a genuine product in the past, and the fact that the component 4 was replaced from a genuine product in the past, and that peripheral parts were used to access the component 4. Contains traces of 3 being moved.

The performance deterioration risk evaluation unit 20 is configured to further evaluate the performance deterioration risk L of the device 2 based on the replacement history R evaluated by the replacement history evaluation unit 18. If the component parts 4 included in the device are appropriate, the device 2 will function normally and the risk of performance deterioration L will be small. In this case, the device 2 may not be able to exhibit its original performance, and performance deterioration such as accelerated deterioration may occur. The performance deterioration risk L is required as an index for quantitatively evaluating the risk of such a possibility occurring.

The notification unit 22 is configured to notify an alarm based on the evaluation result of the replacement history evaluation unit 18. As a result, for example, if it is determined based on the replacement history R that the component 4 has been replaced with a non-genuine product or that there are traces indicating the possibility that the component 4 has been replaced, By notifying an alarm, workers can be made to quickly recognize the situation.

Next, a parts management method implemented by the parts management system 1 having the above configuration will be explained. FIG. 3 is a flowchart illustrating a parts management method according to an embodiment.

First, the portable terminal 10 is started (step S1). When the portable terminal 10 is started, each block constituting the portable terminal 10 becomes functional with electric power supplied from a power source (not shown).

Subsequently, the monitoring data acquisition unit 14 acquires the monitoring data Ds (step S2). In step S2, the monitoring data Ds is acquired via the first communication unit 12 included in the portable terminal 10. The first communication unit 12 can receive the monitoring data Ds when the parts sensor 6 attached to the component 4 incorporated in the device 2 enters the communication range. The reception of the monitoring data Ds by the first communication unit 12 may be performed automatically when the parts sensor 6 enters the reception range of the first communication unit 12. This may be done as a response in which the first communication unit 12 transmits a request signal to the parts sensor 6 when the reception range is entered.

Subsequently, the reference data acquisition unit 16 acquires reference data Dref (step S3). The reference data Dref is readably stored in advance in a storage device (not shown) such as a memory. Such reference data Dref may be, for example, identification information corresponding to a genuine product that is an original part, or may be sample data acquired by a test using the device 2 before shipping. In the latter case, the sample data included in the reference data Dref can include, for example, various data related to vibration and sound.

Subsequently, the replacement history evaluation unit 18 evaluates the replacement history R of the component 4 by comparing the monitoring data Ds acquired in step S2 and the reference data Dref acquired in step S3 (step S4). In step S4, for example, by determining whether the monitoring data Ds and the reference data Dref match, it is determined whether the component 4 specified from the monitoring data Ds is a genuine product corresponding to the reference data Dref. The exchange history R may be evaluated by comparing whether the Further, in step S4, by determining the magnitude relationship between the monitoring data Ds and the reference data Dref, it is determined whether there is a possibility that the component 4 has been replaced from a genuine product due to access to the component 4. However, the replacement history R may be evaluated based on the determination result.
Based on the replacement history R evaluated in step S4, if it is found that a non-genuine product is used as the component 4 or if traces of the component 4 being replaced are found, the notification will be made. By notifying an alarm by the unit 22, the worker carrying the portable terminal 10 may be made aware of this.

Subsequently, the performance deterioration risk evaluation unit 20 evaluates the performance deterioration risk L based on the replacement history R evaluated in step S5 (step S6). In step S6, the performance deterioration risk L is evaluated based on the replacement history R based on whether the component 4 installed in the device 2 is appropriate. The performance deterioration risk L is evaluated to be low, for example, when a component (for example, a genuine product) that allows the device 2 to function normally is used as the component 4. On the other hand, if parts (for example, non-genuine products such as counterfeit products) are used that may cause the device 2 to malfunction or shorten the product life of the device 2, there is a risk of performance deterioration L. is highly valued.

If it is suspected that the component 4 has been replaced with a non-genuine product based on the replacement history R evaluated in step S4, the portable terminal 10 confirms the actual device 2 with the worker. An output (alarm or display) may be provided to prompt the user to do so. If the worker is able to confirm the actual device 2, the confirmation result may be provided to the parts management system 1 as performance data. In this case, the parts management system 1 may consider the performance data provided in this way and utilize it for evaluating the replacement history R in step S4 and evaluating the risk of performance deterioration in step S5.

Further, the performance deterioration risk L evaluated in step S5 may be used as information when proposing future maintenance to the user who uses the device 2. For example, if it is found from the replacement history R evaluated in step S4 that a non-genuine product such as a counterfeit product is being used instead as the component 4, the performance deterioration risk L is evaluated to be high in step S5. Therefore, in order to reduce the high risk of performance deterioration L, it is possible to encourage maintenance to replace the component 4 from a non-genuine product to a genuine product.

Note that at least one of the monitoring data Ds acquired in step S2, the replacement history R evaluated in step S4, or the performance deterioration risk L evaluated in step S5 is appropriately stored in a storage device (not shown). Good too. In this case, each data stored in the storage device may be viewable by user or model of the device 2, for example, so that the status of the component parts 4 can be managed for each user or model.

Next, some specific examples to which the above-described parts management system 1 and parts management method are applied will be described.

In some embodiments, an RFID tag may be used as the parts sensor 6. The RFID tag is attached to (for example, built in) the component 4 and can transmit identification information of the component 4 as a wireless signal as monitoring data Ds. When the RFID tag, which is the parts sensor 6, comes within its communication range, the first communication unit 12 acquires identification information transmitted from the RFID tag as monitoring data Ds.

In this embodiment, the replacement history evaluation unit 18 obtains identification information transmitted from an RFID tag, which is the parts sensor 6, as the monitoring data Ds, and compares it with reference data Dref to determine the replacement history of the component 4. evaluate. In this case, the reference data Dref is identification information regarding suitable parts set in advance.

Then, the replacement history evaluation unit 18 evaluates the replacement history R of the component 4 incorporated in the device 2 by comparing the monitoring data Ds with the reference data Dref. For example, if the identification information that is the monitoring data Ds and the reference data Dref match, a genuine product is being used as the component 4, and if the component 4 has not been replaced, the replacement history R will be be evaluated. On the other hand, if the identification information that is the monitoring data Ds does not match the reference data Dref, it is assumed that the component 4 has been replaced in the past because a non-genuine product is being used as the component 4. History R is evaluated.

As described above, according to the present embodiment, by using an RFID tag as the parts sensor 6, identification information of the component 4 incorporated inside the device 2 can be acquired as the monitoring data Ds. Thereby, without disassembling the device 2, the internally incorporated component 4 can be identified based on the externally acquired monitoring data Ds, and the replacement history R of the component 4 can be evaluated.

Next, FIG. 4 is a schematic diagram showing an example of application of the parts management system 1. In this embodiment, since the casing 5 is formed of a metal material, wireless communication inside and outside the casing 5 is difficult due to the electromagnetic shielding effect. Therefore, if the parts sensor 6 capable of wireless communication is placed inside the casing 5 together with the component 4 as shown in FIG. There is a problem that data Ds cannot be acquired.

On the other hand, in the embodiment shown in FIG. Connect via cable 15. The communication cable 15 is configured to include, for example, a copper wire, and is routed through an opening (not shown) provided in the casing 5 to connect the second communication section 13 outside the casing 5 to the inside of the casing 5. Connect to the parts sensor 6 located at.
Note that the parts sensor 6 is attached to the component 4 via the connector 9, so that it can be easily attached to and removed from the component 4.

In this embodiment, when acquiring the monitoring data Ds in step S2, for example, the following processing is possible. First, a worker operates the portable terminal 10 to transmit a request signal for monitoring data Ds from the first communication section 12. The request signal transmitted from the first communication unit 12 is received by the second communication unit 13 via the wireless communication network 8. The request signal received by the second communication unit 13 is transmitted to the parts sensor 6 via the communication cable 15. When the parts sensor 6 receives the request signal, it transmits monitoring data Ds corresponding to the request signal. The monitoring data Ds transmitted from the parts sensor 6 is received by the second communication unit 13 via the communication cable 15. The monitoring data Ds received by the second communication unit 13 is transmitted to the first communication unit 12 via the wireless communication network 8. The monitoring data Ds received by the first communication unit 12 is then acquired by the monitoring data acquisition unit 14.

In this embodiment, the monitoring data Ds is, for example, an identification signal for identifying the component 4. The monitoring data Ds, which is an identification signal, is compared with the reference data Dref in step S4, so that the replacement history evaluation unit 18 determines whether the component 4 incorporated in the device 2 is an original part corresponding to the reference data Dref. It is possible to evaluate the exchange history R by determining whether or not the product is a genuine product.

In this way, even if the parts sensor 6 is housed in the casing 5 together with the component 4, the first communication section 12 can communicate with the parts sensor 6 via the second communication section 13 and the communication cable 15. By doing so, it becomes possible to suitably obtain the monitoring data Ds.

FIG. 5 is a schematic diagram showing another application example of the parts management system 1. In this embodiment, the part sensor 6 attached to the component 4 is connected to a closed-loop electric wire (for example, a heat-resistant It is configured as an ultra-fine MI cable, optical fiber, etc.). In FIG. 5, the component 4 to which the parts sensor 6 is attached is arranged to be housed in the casing 5. In order to replace the component 4, the peripheral component 3 must be moved and the component 4 It is necessary to open it so that it can be accessed from the outside. The parts sensor 6, which is a closed-loop electric wire, is provided between the component 4 and the peripheral component 3, so that it is deformed or disconnected when the peripheral component 3 is moved to replace the component 4.

In this case, the monitoring data acquisition unit 14 acquires a signal corresponding to the energization state of the closed loop electric wire as the monitoring data Ds. Specifically, if there is no trace of the peripheral component 3 being moved, the closed loop electric wire is not disconnected, and therefore the first voltage signal corresponding to the energized state is obtained. On the other hand, if there is evidence that the peripheral component 3 has been moved, the closed loop electric wire is disconnected, and a second voltage signal corresponding to the disconnection state is obtained.

The first voltage signal corresponding to the energized state has a smaller voltage value than the second voltage signal corresponding to the disconnected state. Therefore, the replacement history evaluation unit 18 evaluates the replacement history R based on whether the voltage signal (first voltage signal or second voltage signal) acquired as the monitoring data Ds is larger than the threshold value acquired as the reference data Dref. Evaluate. In this case, the threshold value that is the reference data Dref is set as an intermediate voltage value between the first voltage signal and the second voltage signal, so that the voltage signal acquired as the monitoring data Ds is the first voltage signal or the second voltage signal. The replacement history R is evaluated by determining which of the voltage signals it is. Specifically, when it is determined that the monitoring data Ds corresponds to the first voltage signal, the closed loop electric wire that is the parts sensor 6 is in the energized state, there is no trace that the peripheral part 3 has been moved, and the component 4 is determined to have not been replaced. On the other hand, if it is determined that the monitoring data Ds corresponds to the second voltage signal, the closed loop electric wire that is the part sensor 6 is in a disconnected state, there is evidence that the peripheral part 3 has been moved, and the component 4 has not been replaced. It is determined that there is a possibility that

As described above, according to the present embodiment, the closed loop electric wire as the parts sensor 6 is provided across the component 4 to which the parts sensor 6 is attached and the peripheral parts 3 thereof. As a result, when the device 2 is disassembled and opened to replace the component 4, the closed loop electric wire is disconnected due to the movement of the peripheral component 3, so the energization state of the closed loop electric wire can be acquired as the monitoring data Ds. Accordingly, the replacement history R of the component parts 4 in the device 2 can be suitably evaluated.

FIG. 6 is a schematic diagram showing another application example of the parts management system 1. In this embodiment, the parts sensor 6 attached to the component 4 is a UT sensor provided at a contact portion 11 between the component 4 and the peripheral component 3 with which the component 4 comes into contact. At the contact portion 11, the component 4 and the peripheral component 3 come into contact with each other, but the state of contact changes as the peripheral component 3 moves relative to the component 4. As a result, when the contact state changes by moving the peripheral part 3 in order to replace the component 4, the detected value of the UT sensor, which is the part sensor 6, also changes.

In this embodiment, the replacement history evaluation unit 18 acquires the acoustic reflection characteristics corresponding to the contact state as monitoring data Ds from the parts sensor 6, which is a UT sensor, and determines the acoustic reflection characteristics corresponding to the reference contact state. The exchange history R can be evaluated by comparing it with the reference data Dref. For example, if the acoustic reflection characteristics acquired as the monitoring data Ds are the same as the reference data Dref, it is determined that there is no trace of the peripheral parts 3 being moved and the component parts 4 have not been replaced. On the other hand, if the acoustic reflection characteristics acquired as the monitoring data Ds are different from the reference data Dref (or if the same signal as the reference data Dref is not obtained as the monitoring data Ds for a predetermined period), the peripheral component 3 is moved. There are traces, and it is determined that component 4 may have been replaced.

In this embodiment, the reference data Dref is determined by, for example, determining the acoustic reflection characteristics of the component 4 by conducting a test or the like using the device 2 in which a genuine component 4 is installed. This is understood as a criterion for distinguishing whether a product has been replaced with a genuine product.

Further, as shown in FIG. 6, the contact portion 11 may be provided with an acoustic coupling material 17. The acoustic coupling material 17 is, for example, heat-resistant rubber or gel, and is provided to be interposed between the component 4 and the peripheral component 3 in the contact portion 11 . The properties of the acoustic coupling material 17 provided in the contact portion 11 irreversibly change when the state of contact between the component 4 and the peripheral component 3 changes. As a result, when the detection signal of the UT sensor, which is the parts sensor 6, is handled as the monitoring data Ds, by providing the acoustic coupling material 17 on the contact part 11, the peripheral parts 3 are moved when the device 2 is disassembled and opened. It is possible to detect changes in the contact state due to such changes with higher sensitivity, and the replacement history R of the component 4 can be evaluated more suitably.

Note that the acoustic coupling material 17 may be attached to the peripheral component 3 side of the contact portion 11. In this case, it is possible to have a configuration in which the previous state is not restored when the component 4 is replaced and then reassembled. It may also be configured such that it is fixed with something like , and cannot be restored once the component 4 is removed). Thereby, the replacement history R of the component part 4 can be suitably evaluated based on the monitoring data Ds acquired from the parts sensor 6, which is a UT sensor.

As described above, according to the present embodiment, the replacement history R of the component parts 4 in the device 2 can be suitably evaluated by acquiring the detection signal of the UT sensor, which is the parts sensor 6, as the monitoring data Ds.

In addition, when using a UT sensor as the parts sensor 6, by directly forming a film of a piezoelectric element with excellent heat resistance on the side of the component 4, monitoring data can be transmitted while the component 4 is attached to the surrounding parts. A signal from the piezoelectric element is obtained as Ds, but when the component 4 is removed from the surrounding parts, the sensor connection is easily disconnected and the signal disappears. Even in such a configuration, the replacement history R of the component parts 4 can be evaluated based on the monitoring data Ds acquired from the parts sensor 6, which is a UT sensor.

In the above embodiment, a case has been described in which the parts sensor 6 is attached to the component 4 that is the subject of evaluation of the replacement history R. It may be attached to the casing 5 provided with. In this case, when the casing 5 is dismantled to replace the component 4 housed inside the casing 5, the replacement history R of the component 4 can be evaluated based on the disassembly history of the casing 5.

Note that when the user of the device 2 attempts to replace the component 4, a means for notifying a warning may be provided. For example, an alarm mechanism may be provided that issues a warning when the component 4 is removed from the device 2 or when a non-genuine product is attached as the component 4. Although such means are not used to evaluate the replacement history of the component parts 4 mentioned above, they are used to urge users of the device 2 not to replace the component parts 4 incorporated in the device 2 with non-genuine products. It can be motivating.
The above-mentioned alarm mechanism may include an alarm stopping means so that the alarm stops when a genuine product is installed or when a predetermined cancellation code is input.

Further, the device 2 may be a moving body such as a ship, for example. In this case, the parts management system 1 may be fixedly installed at a base where a ship enters a port, instead of the portable terminal 10 described above. In this case, when the ship enters the base, the component 4 installed in the ship enters the communication range of the first communication unit 12 installed fixedly, and the parts sensor 6 attached to the component 4 Monitoring data Ds is acquired from. By processing the monitoring data Ds acquired in this manner as described above, it is possible to evaluate the replacement history R of the managed component 4 incorporated in the equipment 2 that is a ship.

Moreover, the parts management system 1 may use a flying object such as a drone instead of the portable terminal 10. In this case, the monitoring data Ds from the component 4 is acquired by causing the flying object to approach the device 2 incorporating the component 4 to be managed. In this case, by processing the monitoring data Ds acquired by the drone as described above, it is possible to evaluate the replacement history R of the component 4 to be managed that is installed in the device 2 located far away.

Furthermore, if the device 2 needs to be disassembled when the component 4 to be managed is assembled into the device 2, a configuration may be adopted to later detect the history of disassembly of the device 2 by the user. As such a configuration, for example, a marking such as an eye mark or a tally mark may be provided at a location where some operation is performed when the device 2 is disassembled, or a marking may be provided on the inside of a portion that is released such as a lid. A pressure sensitive film or the like may also be provided. In addition, by providing a member such as a sensing seal that changes (for example, discolors) when it comes into contact with air at the location where the device 2 comes into contact with air when opened when disassembled, the presence or absence of an opening history of the device 2 can be detected later. It may also be possible to confirm this.

In addition, by providing the user with a set of display means such as a sticker indicating that opening the device 2 is not recommended, together with the replacement part (genuine product) of the component 4, the user can purchase a substitute product such as a non-genuine product. It may be helpful to educate the public that it is not advisable to exchange the information.

Furthermore, by forming the mounting structure of the component 4 into a unique shape, replacement with a non-genuine product may be structurally prevented. For example, a lock nut can be used as a structure for fastening a bolt when attaching the component 4 to the device 2. Since the lock nut requires a dedicated key adapter (or key socket) when it is attached or detached, it is possible to prevent the user from replacing the component 4 with a non-genuine product such as a substitute.

As explained above, according to each of the above embodiments, the monitoring data Ds is acquired from the parts sensor 6 attached to the component 4 of the device 2, and the monitoring data Ds and the reference data Dref are compared. It is possible to evaluate the replacement history R regarding the component 4 in . Based on the replacement history R evaluated in this way, it is possible to suitably evaluate whether the component 4 has been changed from a genuine product such as an original part.

In addition, the components in the embodiments described above can be replaced with well-known components as appropriate without departing from the spirit of the present disclosure, and the embodiments described above may be combined as appropriate.

The contents described in each of the above embodiments can be understood as follows, for example.

(1) A parts management system according to one aspect includes:
a first communication unit attached to a component of the device for communicating with the parts sensor;
a monitoring data acquisition unit for acquiring monitoring data of the component via the first communication unit;
a reference data acquisition unit that obtains reference data corresponding to the monitoring data;
a replacement history evaluation unit for evaluating the replacement history of the component by comparing the monitoring data with the reference data;
Equipped with.

According to the aspect (1) above, the replacement history of the component parts of the device is evaluated by acquiring monitoring data from the parts sensor attached to the component part of the device and comparing the monitoring data with reference data. . Based on the replacement history evaluated in this way, it is possible to suitably grasp whether the current component has been changed from a genuine product such as an original component.

(2) In another aspect, in the aspect of (1) above,
The device further includes a performance deterioration risk evaluation unit for evaluating a performance deterioration risk of the device based on the replacement history.

According to the aspect (2) above, the risk of performance deterioration of the device is evaluated based on the replacement history of the component parts evaluated as described above. As a result, if a component built into a device is replaced with another part, such as a non-genuine product, it is possible to quantitatively understand the impact of the component replacement on the performance of the device, and The evaluation results can be used as motivation to urge the user of the device to replace and maintain the device with a genuine product.

(3) In another aspect, in the aspect (1) or (2) above,
The monitoring data acquisition unit automatically acquires the monitoring data from the parts sensor when the first communication unit enters a communication range with the parts sensor.

According to the aspect (3) above, when the first communication unit enters the communication range of the parts sensor, monitoring data is automatically acquired from the parts sensor. Thereby, monitoring data regarding the component parts of the device can be quickly acquired with less effort.

(4) In another aspect, in any one of the above (1) to (3),
a second communication unit that is attached to the outside of the casing of the device and is capable of communicating with the first communication unit;
a communication cable that connects the parts sensor provided in the casing to the second communication unit;
Equipped with.

When a component to which a part sensor is attached is housed in a casing, and the casing is made of, for example, a metal material, the wireless communication signal from the part sensor is blocked by the electromagnetic shielding effect, making it possible to directly receive monitoring data from the part sensor. It may be difficult to obtain. According to the aspect (4) above, even in such a case, the monitoring data from the parts sensor is sent to the second communication section attached outside the casing via the communication cable, so that the first communication section Monitoring data can be suitably acquired through communication with the second communication device located outside the casing.

(5) In another aspect, in the aspect of (4) above,
The parts sensor transmits the monitoring data in response to a request signal received by the second communication unit from the first communication unit,
The second communication unit transmits the monitoring data received from the parts sensor via the communication cable to the first communication unit.

According to the aspect (5) above, monitoring data can be acquired from the parts sensor via the communication cable at a predetermined timing in response to a request signal from the first communication unit.

(6) In another aspect, in any one of the above (1) to (5),
The parts sensor is an RFID tag capable of transmitting identification information of the component as the monitoring data.

According to the aspect (6) above, by using an RFID tag as a parts sensor, identification information of a component device incorporated inside the device can be acquired as monitoring data. This makes it possible to identify the component devices built into the device based on the acquired monitoring data and evaluate the replacement history of the component parts without disassembling the device.

(7) In another aspect, in any one of the above (1) to (5),
The parts sensor is a closed loop electric wire installed between the component and peripheral parts that need to be moved when accessing the component from the outside.

According to the aspect (7) above, the closed loop electric wire as the parts sensor is provided across the component to which the parts sensor is attached and its peripheral parts. As a result, when the device is disassembled and opened to replace the component parts, the closed loop electric wire is disconnected due to the movement of the peripheral parts. Therefore, by acquiring the energization state of the closed loop electric wire as monitoring data, information regarding the replacement history of component parts in the device can be suitably obtained.

(8) In another aspect, in any one of the above (1) to (5),
The parts sensor is a UT sensor provided at a contact portion between the component and a peripheral component with which the component comes into contact.

According to the aspect (8) above, the UT sensor as the parts sensor is provided at the contact portion between the component to which the parts sensor is attached and its peripheral parts. The contact state between the component and the contact part at the contact part is monitored by the UT sensor, and when the device is disassembled or opened to replace the component, the contact state between the component and the surrounding parts changes. , the detection signal of the UT sensor changes. In this aspect, by acquiring the detection signal of such a UT sensor as monitoring data, information regarding the replacement history of component parts in the device can be suitably obtained.

(9) In another aspect, in the aspect (8) above,
The device further includes an acoustic coupling material provided between the peripheral component and the part sensor.

According to the aspect (9) above, when a UT sensor is used as the parts sensor, an acoustic coupling material is provided between the parts sensor attached to the component and the peripheral parts. The acoustic coupling material and surrounding parts come into contact with each other, and the state of contact changes irreversibly when the device is disassembled or opened to replace the component, so the detection signal from the UT sensor causes the device to be disassembled or opened. By doing so, the fact that component parts have been replaced can be better monitored.

(10) In another aspect, in any one of the above (1) to (9),
The apparatus further includes a notification section for notifying an alarm based on the evaluation result of the replacement history evaluation section.

According to the aspect (10) above, an alarm can be notified based on the exchange history obtained as an evaluation result. As a result, if it is determined that there is an unfavorable replacement history, it can be quickly recognized by an alarm.

(11) A parts management method according to one aspect includes:
acquiring monitoring data of the component through a first communication unit attached to the component of the device and communicating with the parts sensor;
obtaining reference data of the monitoring data corresponding to an initial state of the component;
evaluating the replacement history of the component by comparing the monitoring data with the reference data;
Equipped with.

According to the aspect (11) above, the replacement history regarding the component parts of the device is evaluated by acquiring monitoring data from the parts sensor attached to the component part of the device and comparing the monitoring data with reference data. . Based on the replacement history evaluated in this way, it is possible to suitably grasp whether the current component has been changed from a genuine product such as an original component.

(12) The parts management program according to one aspect includes:
computer equipment,
acquiring monitoring data of the component through a first communication unit attached to the component of the device and communicating with the parts sensor;
obtaining reference data of the monitoring data corresponding to an initial state of the component;
evaluating the replacement history of the component by comparing the monitoring data with the reference data;
is possible.

According to the aspect (12) above, the replacement history regarding the component parts of the device is evaluated by acquiring monitoring data from the parts sensor attached to the component part of the device and comparing the monitoring data with reference data. . Based on the replacement history evaluated in this way, it is possible to suitably grasp whether the current component has been changed from a genuine product such as an original component.

1 Parts management system 2 Equipment 3 Peripheral parts 4 Components 5 Casing 6 Parts sensor 8 Wireless communication network 9 Connector 10 Portable terminal 11 Contact part 12 First communication part 13 Second communication part 14 Monitoring data acquisition part 15 Communication cable 16 Reference data Acquisition unit 17 Acoustic coupling material 18 Replacement history evaluation unit 20 Performance deterioration risk evaluation unit 22 Notification unit

Claims (12)

a first communication unit attached to a component of the device for communicating with the parts sensor;
a monitoring data acquisition unit for acquiring monitoring data of the component via the first communication unit;
a reference data acquisition unit that obtains reference data of the monitoring data corresponding to the monitoring data;
a replacement history evaluation unit for evaluating the replacement history of the component by comparing the monitoring data with the reference data;
A parts management system equipped with The parts management system according to claim 1, further comprising a performance deterioration risk evaluation unit for evaluating a performance deterioration risk of the device based on the replacement history. The parts management according to claim 1 or 2, wherein the monitoring data acquisition unit automatically acquires the monitoring data from the parts sensor when the first communication unit enters a communication range with the parts sensor. system. a second communication unit that is attached to the outside of the casing of the device and is capable of communicating with the first communication unit;
a communication cable that connects the parts sensor provided in the casing to the second communication unit;
The parts management system according to claim 1 or 2, comprising: The parts sensor transmits the monitoring data in response to a request signal received by the second communication unit from the first communication unit,
The parts management system according to claim 4, wherein the second communication unit transmits the monitoring data received from the parts sensor via the communication cable to the first communication unit. 3. The parts management system according to claim 1, wherein the parts sensor is an RFID tag capable of transmitting identification information of the component as the monitoring data. 3. The parts management system according to claim 1, wherein the parts sensor is a closed loop electric wire provided between the component and peripheral parts that need to be moved when accessing the component from the outside. The parts management system according to claim 1 or 2, wherein the parts sensor is a UT sensor provided at a contact portion between the component and a peripheral part with which the component comes into contact. The parts management system according to claim 8, further comprising an acoustic coupling material provided between the peripheral parts and the parts sensor. The parts management system according to claim 1 or 2, further comprising a notification section for notifying an alarm based on the evaluation result of the replacement history evaluation section. acquiring monitoring data of the component through a first communication unit attached to the component of the device and communicating with the parts sensor;
obtaining reference data of the monitoring data corresponding to the monitoring data;
evaluating the replacement history of the component by comparing the monitoring data with the reference data;
A parts management method that includes: computer equipment,
acquiring monitoring data of the component through a first communication unit attached to the component of the device and communicating with the parts sensor;
obtaining reference data of the monitoring data corresponding to the monitoring data;
evaluating the replacement history of the component by comparing the monitoring data with the reference data;
A parts management program that can run

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