Ship parts management system, ship parts management program, and ship parts management method

Abstract

To provide a ship component management system, a ship component management program and a ship component management method for managing respective components of a plurality of ships on the basis of AIS information.SOLUTION: A ship component management system 100 includes an AIS history data acquisition unit 2 for acquiring AIS history data showing a history of AIS information including the sailing state, position and speed of each of a plurality of ships, and an operation time calculation unit 4 for calculating an operation time of each component of the plurality of ships by using the AIS history data.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a ship parts management system, a ship parts management program, and a ship parts management method for managing parts for a plurality of ships. [Background technology]

[0002] Conventionally, as disclosed in Patent Document 1, a ship equipment maintenance determination device has been devised that calculates the maintenance timing of ship equipment.

[0003] This vessel equipment maintenance determination device determines the condition of the vessel equipment and whether the vessel's navigation performance has deteriorated based on the vessel's speed (ship speed) and the horsepower output from the vessel equipment that serves as the power source for moving the vessel, and thereby determines when maintenance is required. Note that this vessel equipment maintenance determination device corrects the horsepower of the vessel equipment, taking into account the effects of wind and waves as factors that affect vessel speed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6271410 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-described ship equipment maintenance determination device only determines the maintenance timing of ship equipment based on two parameters, namely, ship speed and horsepower.

[0006] On the other hand, in recent years, certain ships have been required to be equipped with AIS (Automatic Identification System), and navigation support systems utilizing this AIS have been developed. This AIS automatically transmits and receives information (hereinafter referred to as AIS information) on a ship's identification code, type, position, course, speed, navigation status, and other safety-related information over VHS band, and is used to exchange information between ship stations and between ship stations and land-based navigation aid facilities.

[0007] Under these circumstances, the present inventor is developing a system for managing ship parts based on the unconventional idea of utilizing AIS information to manage ship parts.

[0008] The present invention was made based on the idea of managing ship parts by utilizing the above-mentioned AIS information, and its main objective is to provide a ship parts management system that manages the parts of multiple ships based on AIS information. [Means for solving the problem]

[0009] In other words, the ship parts management system of the present invention is characterized by comprising an AIS history data acquisition unit that acquires AIS history data that indicates the history of AIS information including the navigation status, position, and speed of each of a plurality of ships, and an operating time calculation unit that uses the AIS history data to calculate the operating time of each of the parts of the plurality of ships.

[0010] Such a ship parts management system uses AIS historical data to calculate the operating time of each part of multiple ships, making it possible to manage each part of multiple ships based on the operating time of each part of multiple ships.

[0011] The navigation status included in AIS information is a rough indication of the ship's status, which can make it difficult to accurately calculate the operating time of parts. For this reason, it is desirable that the ship parts management system of the present invention further includes a status subdivision unit that subdivides the navigation status of each of the multiple ships and determines a subdivided status of each of the multiple ships, and that the operating time calculation unit calculates the operating time of parts for each of the multiple ships based on the subdivided status of each of the multiple ships.

[0012] As a specific embodiment for subdividing the status from the navigation state, it is desirable that the status subdivision unit subdivides the navigation state of each of the multiple ships using speed, navigation distance, and / or elapsed time as parameters.

[0013] It is desirable that the ship component management system of the present invention further comprises a replacement time prediction unit that predicts the replacement time of the component based on the operating time obtained by the operating time calculation unit. With this configuration, by predicting when parts will need to be replaced, the ship owner can perform ship maintenance (e.g., replacing parts) at the appropriate time, and the parts manufacturer can propose replacement with new parts or supply new parts to the ship owner at the appropriate time.

[0014] By using parts order history, if the order interval is longer than expected, the use of counterfeit parts can be suspected. However, because the order interval changes depending on the ship's operating status, judging the possibility of the use of counterfeit parts solely based on the order interval obtained from the order history will be inaccurate. Therefore, it is desirable that the ship parts management system of the present invention further include an order history data acquisition unit that acquires order history data indicating the order history of ship parts, and an imitation determination unit that determines whether or not imitation parts are being used, or the possibility of their being used, based on the operating time obtained by the operating time calculation unit or the replacement time obtained by the replacement time prediction unit, and the order history indicated by the order history data. With this configuration, the presence or possibility of the use of imitation parts is determined from the operating time obtained by the operating time calculation unit or the replacement time obtained by the replacement time prediction unit, and the order history indicated by the order history data, thereby improving the accuracy of determining the possibility of the use of imitation parts.

[0015] In order to not only determine the possibility of using imitation parts for each part but also to evaluate the degree of use of imitation parts for the ship as a whole, it is desirable that the ship parts management system of the present invention further include an imitation evaluation unit that evaluates the degree of use of imitation parts for each of the plurality of ships based on judgment result data indicating the judgment result of the presence or absence or possibility of use of imitation parts for each part obtained by the imitation judgment unit.

[0016] It is desirable that the ship parts management system of the present invention further include an order history data acquisition unit that acquires order history data indicating the order history of ship parts, and an order prediction unit that predicts the timing and quantity of future orders based on the operating time obtained by the operating time calculation unit or the replacement time obtained by the replacement time prediction unit, and the order history indicated by the order history data. With this configuration, the timing and quantity of future orders are predicted from the operating time obtained by the operating time calculation unit or the replacement time obtained by the replacement time prediction unit, and the order history indicated by the order history data, so that the inventory amount of parts at the parts manufacturer can be adjusted.

[0017] In addition, the ship parts management program of the present invention is characterized in that it has on a computer the functions of an AIS history data acquisition unit that acquires AIS history data that indicates the history of AIS information including the navigation status, position, and speed of each of multiple ships, and an operating time calculation unit that uses the AIS history data to calculate the operating time of each of the multiple ships' parts.

[0018] Furthermore, the ship parts management method of the present invention is characterized by acquiring AIS history data indicating the history of AIS information including the navigation status, position, and speed of each of multiple ships, and using the AIS history data to calculate the operating time of parts for each of the multiple ships. [Effects of the Invention]

[0019] According to the present invention as described above, the operating time of each part of a plurality of ships can be calculated based on objective data. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic diagram showing the relationship between ships, AIS-related facilities, and a ship parts management system according to one embodiment of the present invention. [Figure 2] FIG. 2 is a functional configuration diagram of a ship component management system according to the embodiment. [Figure 3] 10 is an example of a flowchart showing the subdivision of a status according to the embodiment. [Figure 4] 10 is an example of an operating auxiliary machine number correspondence table according to the embodiment. [Figure 5] FIG. 4 is a schematic diagram showing a method for calculating an auxiliary operation time in the embodiment. [Figure 6] 10 is an example of an "imitation" evaluation table for each ship according to the embodiment. [Figure 7] 10 is an example of evaluation criteria for each part and each ship according to the embodiment. [Figure 8] 10 is an example showing a calculation result of the next replacement time in the same embodiment. [Figure 9] 10 is an example showing a calculation result of the next predicted order date in the same embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0021] A ship component management system according to an embodiment of the present invention will be described below with reference to the drawings.

[0022] <Device configuration> The ship parts management system 100 of this embodiment uses AIS history data that shows the history of AIS information for each of multiple ships obtained by AIS (Automatic Identification System), to calculate the operating time of parts for each of multiple ships and manage those parts.

[0023] Here, AIS (Automatic Identification System) is a system installed on each ship that automatically transmits and receives information on the ship's identification code, type, position, course, speed, navigation status, and other safety-related information over VHF radio waves, and exchanges information between ship stations and between ship stations and land-based navigation aid facilities, etc.

[0024] Specifically, as shown in FIG. 1, the ship component management system 100 is a dedicated or general-purpose computer having a CPU 101, memory 102, an input / output interface 103, input means 104 such as a keyboard, display means 105 such as a display, and communication means 106 for communicating with external devices via a communication line NT such as the Internet.

[0025] The ship component management system 100 performs functions such as an AIS history data acquisition unit 2, a status subdivision unit 3, an operating time calculation unit 4, an order history data acquisition unit 5, a replacement time prediction unit 6, an imitation determination unit 7, and an imitation evaluation unit 8, as shown in Figure 2, through cooperation between the CPU and peripheral devices based on the ship management program stored in memory. In addition, the ship component management system 100 has a data storage unit D1 consisting of memory 102.

[0026] The functions of each of the units 2 to 8 will be explained below.

[0027] The AIS history data acquisition unit 2 acquires AIS history data indicating the history of AIS information for each of multiple ships from AIS-related facilities. Here, the AIS information history includes the ship's identification code, type, position, course, speed, navigation status, and other safety-related information. The AIS history data also includes the AIS information history for, for example, the past three to six years. The AIS history data acquired by the AIS history data acquisition unit 2 is stored in the data storage unit D1 for each ship.

[0028] The status subdivision unit 3 subdivides the navigation status of each of the multiple ships and determines a subdivided status for each of the multiple ships. Specifically, as shown in Figure 3, the status subdivision unit 3 can subdivide the navigation status of each of the multiple ships using parameters such as speed, navigation distance, and / or elapsed time.

[0029] Here, examples of the navigational state (operational status) include "Underway using engine," "Underway sailing," "Not under command," "Restricted maneuverability," "Constrained by her draught," "Engaged in Fishing," "Moored," "At Anchor," and "Aground."

[0030] For example, the status subdivision unit 3 subdivides the ship's navigational state A ("Status A" in Fig. 3) into new "new status α," "new status β," "new status γ," and "new status δ" based on whether "the elapsed time since the last measurement is XX or more" and whether "the navigation distance since the last measurement is XX or more." Note that Fig. 3 shows an example of subdivision based on the elapsed time and the navigation distance, but speed may also be added as a parameter for subdivision, such as whether "the change in speed since the last measurement is XX or more."

[0031] The operation time calculation unit 4 calculates the operation time of each part of the multiple ships using the AIS history data. Specifically, the operation time calculation unit 5 calculates the operation time of each part of the multiple ships based on the subdivided status of each of the multiple ships obtained by the status subdivision unit 3.

[0032] More specifically, as shown in Figure 4, the operating time calculation unit 4 uses an operating auxiliary equipment number correspondence table that assigns the number of operating auxiliary equipment (generators) according to the type of ship and detailed status to calculate the extent to which each ship has operated its auxiliary equipment over a "certain period in the past (the time interval between two AIS data)" (i.e., the operating rate). This allows the operating time calculation unit 4 to calculate the past auxiliary equipment operating time, and also to calculate the auxiliary equipment operating time per unit actual time. The operating auxiliary equipment number correspondence table is preset based on past performance data (auxiliary equipment operation performance in each status).

[0033] Specifically, as shown in Figure 5, when calculating the auxiliary equipment operation time between time t1 and time t2, the AIS historical data for time t1 is used to subdivide into "subdivision status 1," and then the number of auxiliary equipment in operation 1 (operation rate) is calculated using that subdivision status 1 and the correspondence table for the number of auxiliary equipment in operation. The AIS historical data for time t2 is also used to subdivide into "subdivision status 2," and then the number of auxiliary equipment in operation 2 (operation rate) is calculated using that subdivision status 2 and the correspondence table for the number of auxiliary equipment in operation. Then, when calculating the auxiliary equipment operation time between time t1 and time t2, the auxiliary equipment operation time for a certain period in the past (the time interval between time t1 and t2) is calculated by multiplying (time t1 - time t2) by "auxiliary equipment operation time 1." This is performed for multiple AIS historical data to calculate the cumulative auxiliary equipment operation time.

[0034] The order history data acquisition unit 5 acquires order history data that indicates the order history of ship parts. Here, the order history data includes the type, quantity, order date, etc. of parts ordered for each ship. This order history data can be transmitted to the order history data acquisition unit 5 from, for example, a customer management device of a parts manufacturer.

[0035] The replacement time prediction unit 6 predicts the replacement time of a part based on the operating time obtained by the operating time calculation unit 4. Specifically, as shown in FIG. 6, the replacement time prediction unit 6 can predict the replacement time based on the operating time obtained by the operating time calculation unit 4 and the service life set for each part. Note that the "replacement interval standard" in FIG. 6 indicates the actual replacement standard. Here, the replacement time prediction unit 6 can predict the replacement time by also taking into account the elapsed time from the last order date included in the order history data. In this embodiment, the replacement time prediction unit 6 calculates the next replacement date by "simple calculation," the start and end points of the "40% confidence interval," and the start and end points of the "80% confidence interval." In addition, the replacement time prediction unit 6 can predict the replacement time based on trends in the ship's operating conditions (i.e., trends in auxiliary equipment operating rate, etc.) obtained from the AIS history data.

[0036] The counterfeit determination unit 7 determines whether or not counterfeit parts are being used, or the possibility thereof, based on the operating time obtained by the operating time calculation unit 4 or the replacement time obtained by the replacement time prediction unit 6, and the order history indicated by the order history data. Specifically, the counterfeit determination unit 7 determines whether or not counterfeit parts are being used, or the possibility thereof, for each auxiliary machinery part for each ship.

[0037] Specifically, as shown in FIG. 7(a), the imitation determination unit 7 determines whether or not an imitation part is used, or the possibility of using an imitation part, based on the following evaluation criteria (here, six levels) for each part.

[0038] "Rating A": Indicates that replacement is done very frequently, with replacement occurring within "70%" of the operating time of the "practical replacement standard." "Rating B": Indicates that the replacement is within the practical replacement standard, and is within the "practical replacement standard." "Rating C": Indicates that replacement is being performed slightly slower than the practical replacement standard, and is performed within "200%" of the operating time of the "practical replacement standard." "Rating d": Indicates that replacement is occurring just before it is determined that the use of imitation or no replacement has become the norm, and replacement is occurring within "400%" of the "practical replacement standard" of operating time. "Rating f": Indicates that the use of imitation / no exchange has become the norm, and is other than the above "Ratings a-d" and other than the following "Rating 0". "Rating 0": Indicates that the engine has not been replaced due to a short operating time, or that replacement is the norm and imitation parts are being used regularly, and there has been no record of parts being shipped more than twice.

[0039] In the above, the "practical replacement standard" can be set to a value equivalent to the bottom 40% of the replacement intervals for a part replaced by a "shipowner who has replaced the part twice or more." Note that the "practical replacement standard" can be changed as appropriate to suit the actual situation.

[0040] Then, the imitation determination unit 7 applies the above evaluation criteria to each part (e.g., "oiling valve," "plunger," "vent guide," "delivery valve," etc.) and creates an "imitation" evaluation table for each part, as shown in Fig. 8. This makes it possible to evaluate the likelihood of each part being an imitation.

[0041] In addition, the imitation evaluation unit 8 evaluates the degree of use of imitation parts for each of the multiple ships based on the judgment result data obtained by the imitation judgment unit 7, which indicates the judgment result of whether or not imitation parts are used for each part, or the possibility of this.

[0042] Specifically, as shown in Figure 7(b), the imitation evaluation unit 8 evaluates the degree of use of imitation parts for each ship by assigning a score based on the following evaluation criteria for each ship (here, on a seven-point scale).

[0043] "Rating A": Indicates an excellent ship with almost all parts replaced within the practical replacement time, with a rating of 2.5 or higher. "Rating B": Indicates a superior ship that replaces many parts within the practical replacement time, with an evaluation score of "2 or higher." "Rating C": Indicates a ship that has regular orders for many parts, but is suspected of using some imitation parts, and has an evaluation score of "1 or above." "Rating D": Indicates a ship that has regular orders for major parts, but clearly uses imitation parts on a regular basis, and the rating level is "0 or above." "Evaluation E": This indicates a ship where the specifications of many parts are suspected to be imitation parts, but some parts have a history of regular orders, and the evaluation point level is "-2 to 0". "Rating F": Indicates a ship that has no shipment record of any major parts, and the rating level is "No order." "Rating n / a": Indicates a ship that has only recently been built and has not yet been shipped or has accumulated sufficient AIS data. The rating level is "Shipping date 2017 / 1 / 1~ and rating F."

[0044] Here, the evaluation score for each ship is the weighted average of the component evaluations for each ship, and for example, the component evaluations could be set as follows: "Evaluation a: 4 points," "Evaluation b: 3 points," "Evaluation c: 2 points," "Evaluation d: 1 point," "Evaluation f: -1 point," or "Evaluation 0: 0 points."

[0045] Then, the imitation evaluation unit 8 calculates the "RAS evaluation score" for each ship by accumulating the evaluations of each part, and assigns an overall evaluation (the above-mentioned "Evaluation A to n / a") based on the "RAS evaluation score," as shown in Fig. 8. These overall evaluations for each ship are also displayed in a list in the "Imitation Evaluation Table."

[0046] <Effects of this embodiment> With a ship parts management system 100 configured in this manner, the AIS historical data is used to calculate the operating time of each part of multiple ships, making it possible to manage each part of multiple ships based on the operating time of each part of multiple ships.

[0047] In particular, in this embodiment, the navigation status of each of the multiple ships is subdivided, and the operating time of each of the multiple ships' parts is calculated based on the subdivided status, so that the operating time of the parts can be calculated with high accuracy.

[0048] Furthermore, in this embodiment, the timing of parts replacement is predicted based on the operating time obtained by the operating time calculation unit 4, so that the ship owner can perform ship maintenance at the appropriate time, and the parts manufacturer can supply parts to the ship owner at the appropriate time.

[0049] Furthermore, in this embodiment, the presence or possibility of the use of imitation parts is determined from the operating time obtained by the operating time calculation unit 4 or the replacement time obtained by the replacement time prediction unit 6, and the order history indicated by the order history data, thereby improving the accuracy of determining the possibility of the use of imitation parts.

[0050] In addition, the degree of use of imitation parts for each of a plurality of ships is evaluated based on the judgment result data obtained by the imitation judgment unit, which indicates the judgment result of whether or not imitation parts are used for each part, or the possibility of this. Therefore, not only can the possibility of using imitation parts be judged for each part, but the degree of use of imitation parts for the ship as a whole can be evaluated.

[0051] <Other embodiments> For example, as shown in FIG. 9, the parts management system may further include an order prediction unit that predicts the timing and quantity of future orders based on the operating time obtained by the operating time calculation unit or the replacement time obtained by the replacement time prediction unit, and the order history indicated by the order history data.

[0052] Here, the order prediction unit calculates, for example, the average operating time between orders for one unit and the average operating time per day from the operating time obtained by the operating time calculation unit, extracts the final order date from the order history data, and predicts the timing and quantity of parts orders. For example, the order prediction unit predicts the predicted order date for "one unit," the predicted order date for "two units," and the predicted order date for "three units." Here, "one unit" indicates the number of parts (unit quantity) required for one auxiliary machine; for example, if "one unit" is six parts, then "two units" is 12 parts, and "three units" is 18 parts.

[0053] In the above embodiment, the replacement time predicting unit may not be included, and the imitation determining unit or the imitation evaluating unit may not be included.

[0054] In addition, in the above embodiment, the navigation status is subdivided by the status subdivision unit, but it is also possible to use the navigation status included in the AIS information to determine the number of auxiliary equipment in operation and calculate the operating time of the parts without subdividing the navigation status.

[0055] Furthermore, the ship parts management system in the above embodiment was designed to manage parts for generators, which are auxiliary machinery, but it may also be designed to manage parts for auxiliary machinery other than generators, or to manage parts for the main engine of a ship.

[0056] Furthermore, some of the functions of the ship component management system 100 of the above embodiment may be provided on a cloud server.

[0057] In addition, various modifications and combinations of the embodiments may be made as long as they do not go against the spirit of the present invention. [Explanation of symbols]

[0058] 100···Ship Parts Management System 2. AIS history data acquisition section 3. Status subdivision 4. Operating time calculation section 5. Order history data acquisition section 6 Replacement time prediction section 7. Imitation Judgment Section 8. Imitation evaluation section 9. Order Forecasting

Claims

1. an AIS history data acquisition unit that acquires AIS history data indicating the history of AIS information including the navigation state, position, and speed of each of a plurality of ships; an operating time calculation unit that calculates an operating time of each part of the plurality of ships using the AIS history data; a status subdivision unit that subdivides the navigation status of each of the plurality of ships and determines a subdivided status of each of the plurality of ships, the status subdivision unit subdivides the navigation status of each of the plurality of ships using speed, navigation distance, and / or elapsed time as parameters; The operating time calculation unit calculates the number of operating auxiliary equipment for each of the multiple ships using an operating auxiliary equipment number correspondence table that assigns the number of operating auxiliary equipment according to the type of ship and the subdivision status, calculates the auxiliary equipment operating time for each of the multiple ships based on the operating number of auxiliary equipment for each of the multiple ships, and calculates the operating time of auxiliary equipment parts for each of the multiple ships based on the auxiliary equipment operating time for each of the multiple ships.

2. 2. The ship component management system according to claim 1, further comprising a replacement time prediction unit that predicts when to replace the component based on the operating time obtained by the operating time calculation unit.

3. The ship parts management system according to claim 2 , further comprising an order history data acquisition unit that acquires order history data indicating an order history of the ship parts.

4. 4. The ship component management system according to claim 3, further comprising an order prediction unit that predicts the timing and quantity of future orders based on the operating time obtained by the operating time calculation unit or the replacement time obtained by the replacement time prediction unit and the order history indicated by the order history data.

5. an AIS history data acquisition unit that acquires AIS history data indicating the history of AIS information including the navigation state, position, and speed of each of a plurality of ships; an operating time calculation unit that calculates an operating time of each part of the plurality of ships using the AIS history data; a status subdivision unit that subdivides the navigation status of each of the plurality of ships and determines a subdivided status of each of the plurality of ships; the status subdivision unit subdivides the navigation status of each of the plurality of ships using speed, navigation distance, and / or elapsed time as parameters; The ship parts management program is characterized in that the operating time calculation unit calculates the number of operating auxiliary equipment for each of the multiple ships using an operating auxiliary equipment number correspondence table that assigns the number of operating auxiliary equipment according to the type of ship and the subdivision status, calculates the auxiliary equipment operating time for each of the multiple ships based on the operating auxiliary equipment number for each of the multiple ships, and calculates the operating time of auxiliary equipment parts for each of the multiple ships based on the auxiliary equipment operating time for each of the multiple ships.

6. Acquire AIS history data showing the history of AIS information including the navigation state, position, and speed of each of the plurality of ships; The navigation status of each of the plurality of ships is subdivided using speed, navigation distance, and / or elapsed time as parameters to determine a subdivided status of each of the plurality of ships; A ship parts management method that calculates the number of operating auxiliary equipment for each of the multiple ships using an operating auxiliary equipment number correspondence table that assigns the number of operating auxiliary equipment according to the type of ship and the subdivision status, calculates the auxiliary equipment operating time for each of the multiple ships based on the operating auxiliary equipment number for each of the multiple ships, and calculates the operating time of auxiliary equipment parts for each of the multiple ships based on the auxiliary equipment operating time for each of the multiple ships.

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