Management system and method for inflatable fender

Abstract

The present invention provides a management system and method having excellent maintainability and capable of easily and more stably ascertaining the state of each inflatable fender. An IC tag (11), a pressure sensor (15a), and a temperature sensor (15b) are activated by a transmitted radio wave (R1) from a communication device (16) outside a pneumatic fender (2) provided with a passive IC tag (11) in which the pressure sensor (15a) and the temperature sensor (15b) are integrated, the activated IC tag (11) transmitting a reply radio wave (R2) on the basis of the transmitted radio wave (R1), and the pressure sensor (15a) and the temperature sensor (15b) transmitting a reply radio wave (R2) on the basis of the reply radio wave (R2) on the basis of the reply radio wave (R2). A wireless communication is performed between an IC tag (11) and a communication device (16), whereby the communication device (16) acquires identification information (A) of the IC tag (11) and detection data (D1, D2) of a pressure sensor (15a) and a temperature sensor (15b) when the IC tag (11) is activated, and a computing device (17) identifies an individual inflatable fender material (2) on the basis of the identification information (A) and determines the state of the inflatable fender material (2) on the basis of the detection data (D1, D2).

Description

Technical Field

[0001] The invention relates to a management system and a method for grasping the state of an inflatable fender. Background Art

[0002] A management system for grasping the use status of an inflatable fender installed at a quay or the like has been proposed (see Patent Document 1). The management system proposed in Patent Document 1 includes an identification tag and a sensor installed on the inflatable fender, and a receiving device for receiving radio waves from the sensor. By using a pressure sensor and a temperature sensor as sensors, the internal pressure and internal temperature of the inflatable fender can be grasped. By using a passive RFID tag as an identification tag, no battery is required when acquiring information from the identification tag.

[0003] In this management system, since the identification tag and the sensor are separately provided on the inflatable fender in the form of independent individuals, the installation and maintenance work become complicated. In addition, the sensor is driven by a built-in battery (paragraph 0022). When the battery is exhausted, it needs to be replaced, which makes the maintenance work more and more complicated. In addition, since the battery of the inflatable fender in use cannot be easily replaced, the internal pressure and internal temperature of the inflatable fender cannot be grasped before the exhausted battery is replaced. Therefore, there is still room for improvement in simply and more stably grasping the status of each inflatable fender and improving maintainability.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: International Publication No. 2011 / 155265 Summary of the invention

[0007] Problems to be solved by the invention

[0008] An object of the present invention is to provide a management system and method with excellent maintainability that can easily and more stably grasp the status of each pneumatic fender.

[0009] Technical means of solving problems

[0010] In order to achieve the above-mentioned purpose, the management system of the inflatable fender of the present invention comprises: an inflatable fender, wherein at least one of the bowl-shaped ends of the main body of the cylindrical trunk portion connected to bowl-shaped ends on both sides in the axial direction of the cylinder is installed with a metal cover; a passive IC tag, a pressure sensor for detecting the internal pressure of the inflatable fender, and a temperature sensor for detecting the temperature of the internal space of the inflatable fender, which are all arranged on the inflatable fender; and a communication device, which is arranged on the outside of the inflatable fender, and can determine the individual of the inflatable fender according to the identification information of the IC tag obtained by the communication device, and can judge the state of the inflatable fender according to the detection data detected by the pressure sensor and the temperature sensor obtained by the communication device. The management system of the inflatable fender is characterized in that the pressure sensor and the temperature sensor are installed on the inflatable fender. The structure on and integrated with the IC tag has a computing device that is communicably connected to the communication machine, the IC tag is activated by a transmission wave sent from the communication machine, and the pressure sensor and the temperature sensor are activated, the activated IC tag sends a reply wave according to the transmission wave, thereby performing the wireless communication between the IC tag and the communication machine, the communication machine obtains the identification information through the wireless communication and inputs it into the computing device, and the communication machine obtains the detection data detected by the pressure sensor and the temperature sensor when the IC tag is activated through the wireless communication and inputs it into the computing device, the computing device determines the individual of the inflatable fender according to the input identification information, and judges the state of the inflatable fender according to the input detection data.

[0011] The management method of the inflatable fender of the present invention comprises the following steps: a passive IC tag, a pressure sensor for detecting the internal pressure of the inflatable fender, and a temperature sensor for detecting the temperature of the internal space of the inflatable fender are arranged on the inflatable fender; at least one of the bowl-shaped ends of the main body of the inflatable fender, which is connected to bowl-shaped ends on both sides of the cylindrical body in the cylinder axis direction, is installed with a metal cover; a communication device is arranged on the outside of the inflatable fender; the individual of the inflatable fender is determined according to the identification information of the IC tag acquired by the communication device; and the state of the inflatable fender is determined according to the detection data detected by the pressure sensor and the temperature sensor acquired by the communication device. The management method of the inflatable fender is characterized in that the pressure sensor and the temperature sensor are designed to be mounted on the IC tag and connected to the inflatable fender. The IC tag is integrated into a structure in which a computing device is provided which is communicatively connected to the communication machine. The IC tag is activated by a transmission wave sent from the communication machine, and the pressure sensor and the temperature sensor are activated. The activated IC tag sends a reply wave according to the transmission wave, thereby wireless communication is performed between the IC tag and the communication machine. Through the wireless communication, the communication machine obtains the identification information and inputs it into the computing device. Through the wireless communication, the communication machine obtains the detection data detected by the pressure sensor and the temperature sensor when the IC tag is activated and inputs it into the computing device. The computing device determines the individual of the inflatable fender based on the input identification information, and judges the state of the inflatable fender based on the input detection data.

[0012] Effects of the Invention

[0013] According to the present invention, by wirelessly communicating between the IC tag and the communicator, the identification information and the detection data can be acquired. Then, based on the acquired identification information and the detection data, the status of each inflatable fender can be easily grasped. In addition, since the pressure sensor and the temperature sensor are designed to be assembled on the IC tag and integrated with the IC tag, the working hours for installing these components to the inflatable fender can be reduced. Furthermore, since the IC tag, the pressure sensor and the temperature sensor are activated by the transmission radio waves sent from the communicator, there is no need to set batteries in these components. That is, there is no need to replace the batteries for these components, and there is no inability to acquire data due to battery exhaustion. Therefore, it is beneficial to improve maintainability while stably grasping the status of each inflatable fender for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an explanatory diagram showing an example of an inflatable fender installed on a quay wall from a top view.

[0015] Figure 2 This is an explanatory diagram showing an embodiment of a management system for an inflatable fender by making a longitudinal cross-sectional view of the fender.

[0016] Figure 3 Yes Figure 2 An explanatory diagram showing a partially enlarged portion of the IC tag and illustrating a state of wireless communication between the IC tag and the communication device.

[0017] Figure 4 Yes Figure 3 An explanatory diagram showing an enlarged view of the vicinity of an IC tag.

[0018] Figure 5 This is an explanatory diagram showing an example of an IC tag from a top view.

[0019] Figure 6 This is an example from a frontal perspective. Figure 5 Illustration of an IC tag.

[0020] Figure 7 This is an explanatory diagram showing another mounting structure of the IC tag with respect to the fender as an example.

[0021] Figure 8 This is an explanatory diagram showing an example of the configuration of a management system in which a computing device and terminal equipment are connected via a communication network.

[0022] Fig. 9 This is an explanatory diagram showing another embodiment of the management system by making a longitudinal cross-sectional view of a fender.

[0023] Fig.10 It is an explanatory diagram showing an example of reference image data showing an example of a top surface angle of a fender.

[0024] Fig.11 This is an explanatory diagram showing an example of image data of the top surface view of the fender acquired by the camera device. DETAILED DESCRIPTION

[0025] Hereinafter, a management system and method for a pneumatic fender according to the present invention will be described based on the illustrated embodiments.

[0026] like Figure 1 As shown in the example, the inflatable fender 2 (hereinafter referred to as the fender 2) is installed at a location such as a quay 22 or the side of a ship using a cable 2a or the like. The fender 2 includes a main body 3 having bowl-shaped ends 5 connected to both sides of a cylindrical body 4 in the cylinder axis direction, and a metal cover 9 provided on the main body 3. In this embodiment, the metal cover 9 is provided only at one bowl-shaped end 5, but may be provided at the bowl-shaped ends 5 on both sides.

[0027] exist Figure 1 In the embodiment, a plurality of fenders 2 are provided at intervals, but a single fender 2 may be provided. The fender 2 may be provided in a horizontal position with the bowl-shaped ends 5 located at the left and right, or in a vertical position with the bowl-shaped ends 5 located at the top and bottom.

[0028] Figures 2 to 4 The embodiment of the management system 1 of the pneumatic fender (hereinafter referred to as the management system 1) shown as an example is used to grasp the state of each fender 2. The management system 1 can not only be used to grasp the state of each fender 2, but also to grasp the state of each fender 2. Figure 1 The state of the fender 2 installed at the installation location and used in the state inflated at a predetermined internal pressure as shown in the example can also be used to grasp the state of the fender 2 stored in a warehouse or the like, for example.

[0029] If the structure of the fender 2 is described in detail, the main body 3 is composed of a plurality of reinforcing layers 7 stacked between an inner rubber layer 6 and an outer rubber layer 8. Each reinforcing layer 7 constituting the trunk portion 4 is formed of a plurality of cords aligned and extending in parallel at a predetermined cord angle relative to the cylinder axis direction of the cylindrical trunk portion 4. In addition, an offset structure is formed in which the cords of the stacked and adjacent reinforcing layers 7 intersect with each other.

[0030] The reinforcing layer 7 constituting each bowl-shaped end 5 is formed by alternately stacking a cord layer consisting of cords extending radially from the circular center of the bowl-shaped end 5 and a cord layer consisting of cords extending in the circumferential direction. That is, the stacked body of the reinforcing layer 7 of the bowl-shaped end 5 has a so-called radial structure. Figure 2 In the figure, for reference, the boundaries between the trunk portion 4 and each bowl-shaped end portion 5 are shown by double-dotted lines as an example.

[0031] The management system 1 includes: a fender 2; a passive IC tag 11, a pressure sensor 15a, and a temperature sensor 15b provided on the fender 2; a communication device 16 disposed on the outside of the fender 2; and a computing device 17 connected to the communication device 16 in a communicative manner. The pressure sensor 15a and the temperature sensor 15b are structures assembled on the IC tag 11 and integrated with the IC tag 11. In this embodiment, the IC tag 11 is in a state of being buried in the inner rubber layer 6 of the body 3. Wireless communication is performed between the IC tag 11 and the communication device 16, and necessary information and data are obtained from the IC tag 11 through the communication device 16.

[0032] like Figure 5 , Figure 6As shown in the example, the IC tag 11 has an IC chip 12 and an antenna unit 13 connected to the IC chip 12. A pressure sensor 15a and a temperature sensor 15b are connected to the IC tag 11 (IC chip 12). The size of the IC chip 12 is very small, for example, the longitudinal dimension and the lateral dimension are respectively less than 50 mm (less than 50 mm in terms of outer diameter), and the thickness is less than 5 mm. The size of the antenna unit 13 is also very small. In this embodiment, the antenna unit 13 adopts a dipole type antenna composed of a metal single wire extending symmetrically from the IC chip 12. The length of each metal single wire is about 10 mm or more and less than 200 mm.

[0033] Specifically, the IC tag 11 includes an IC chip 12 and an antenna 13 connected to the IC chip 12. The IC chip 12 can store any tag-specific information such as the identification number A of the IC tag 11 and other necessary information. The IC tag 11 adopts a conventionally circulated specification, such as an RFID tag.

[0034] The IC chip 12 is arranged on the surface of the substrate 14. The pressure sensor 15a and the temperature sensor 15b connected to the IC chip 12 are arranged on the back surface of the substrate 14. The antenna portion 13 (metal single wire) protrudes and extends from the substrate 14. Note that the antenna portion 13 is not limited to the above-mentioned dipole type antenna, and various well-known types can be used, and for example, a ceramic antenna formed on the substrate 14 can also be used.

[0035] Sometimes the main body 3 needs to be in a contracted state by exhausting the air from the internal space, and sometimes it needs to be in an expanded state by injecting air into the internal space of the contracted main body 3. If a dipole antenna made of a metal single wire is used as the antenna part 13, it has excellent bending durability, so it is helpful to avoid damage even when the main body 3 is greatly deformed.

[0036] The IC tag 11 is covered by the insulating layer 14a so that the IC tag 11 is electrically insulated from the outside. However, the detection parts of the pressure sensor 15a and the temperature sensor 15b are not covered by the insulating layer 14a but are exposed from the surface of the insulating layer 14a. Figure 4 As shown in the example, in the IC tag 11 that is buried in the inner rubber layer 6 of the body 3 , only the detection parts of the pressure sensor 15 a and the temperature sensor 15 b are exposed in the internal space of the fender 2 .

[0037] As the insulating layer 14a, resins such as ABS, polyvinyl chloride, polycarbonate, polyimide, and epoxy resin can be used. Since polyvinyl chloride has excellent flexibility, it is very suitable for covering the long-extending antenna part 13 (metal wire).

[0038] The IC tag 11 is not limited to being set on the main body 3, and can also be set on the metal cover 9, but it is easier to set it in a state where it is buried in the main body 3. It is preferably buried in the inner rubber layer 6 of the bowl-shaped end portion of the main body 3 that is not easily deformed or subjected to external forces. In addition, if a plurality of tires are provided on the outer surface of the main body 3 using a chain net, the chain net and the tire will hinder the wireless communication between the IC tag 11 and the communicator 16. Therefore, the IC tag 11 needs to be arranged at a position that is not covered by the chain net or the tire provided on the outer surface of the main body 3. If it is in the trunk 4, it is difficult to change the position of the chain net or the tire, but in the bowl-shaped end portion 5, their positions can be slightly adjusted. Therefore, from this point of view, it is also preferred to bury the IC tag 11 in the inner rubber layer 6 of the bowl-shaped end portion 5.

[0039] The IC tag 11 may be installed in a state where it is embedded in the main body 3 during the manufacturing process of the fender 2. That is, the IC tag 11 may be embedded in the inner rubber layer 6 during the molding process of the main body 3, and then the main body 3 may be vulcanized to install the IC tag 11 in a state where it is embedded in the main body 3.

[0040] In this embodiment, the IC tag 11 is provided on each bowl-shaped end portion 5. In addition, the IC tag 11 is provided at a plurality of locations (two locations) spaced apart in the circumferential direction at each bowl-shaped end portion 5. Furthermore, the IC tags 11 provided at the bowl-shaped ends 5 are arranged at positions offset by 90° in the circumferential direction.

[0041] An embedding mark 10 indicating the embedding position of the IC tag 11 is provided on the outer surface of the main body 3 (the surface of the outer rubber layer 8) corresponding to the embedding position of each IC tag 11. In this embodiment, the embedding position mark 10 is a convex portion, but its form is not limited, as long as it can show the embedding position of the IC tag 11, it can be a concave portion, or it can be a printed display, etc.

[0042] The pressure sensor 15a detects the internal pressure of the fender 2. The pressure sensor 15a may be of various known types as long as it can be mounted on the IC tag 11. The communication device 16 can obtain the detection data D1 detected by the pressure sensor 15a.

[0043] The temperature sensor 15b detects the temperature of the internal space of the fender 2. The temperature sensor 15b can be of various known types as long as it can be mounted on the IC tag 11. The communication device 16 can obtain the detection data D2 detected by the temperature sensor 15b.

[0044] The temperature sensor 15b of this embodiment has two detection parts, one of which detects the temperature of the internal space of the fender 2. Then, the other detection part detects the temperature of the main body 3 (inner rubber 6) at the position where the temperature sensor 15b is buried. The temperature of the main body 3 detected by the temperature sensor 15b is also obtained by the communication device 16 as one of the detection data D2 (detection data D21). Note that the temperature sensor 15b only needs to be able to detect the temperature of the internal space of the fender 2, and it is more preferable that it can detect the temperature of the main body 3 in addition to the temperature of the internal space of the fender 2 as in this embodiment.

[0045] The communication device 16 includes a radio wave transmitting unit 16a and a radio wave receiving unit 16b. The radio wave transmitting unit 16a transmits a transmission radio wave R1 to the IC tag 11. The IC tag 11 generates power by receiving the transmission radio wave R1 from the antenna unit 13, and the IC tag 11 is activated. Using the power, the activated IC tag 11 transmits a reply radio wave R2 via the antenna unit 13, and the reply radio wave R2 is received by the radio wave receiving unit 16b. In this way, wireless communication is performed between the IC tag 11 and the communication device 16 by transmitting the reply radio wave R2 based on the transmission radio wave R1.

[0046] As the communication device 16, a commonly used specification that enables wireless communication between it and a passive IC tag (RFID tag) is adopted. Thus, the IC tag 11 and the communication device 16 constitute an RFID (Radio Frequency IDentification) system. In this embodiment, a freely portable handheld communication device 16 is used. Since a passive IC tag 11 is used, the communication distance of the radio waves R1 and R2 between the IC tag 11 and the communication device 16 is, for example, about 1m.

[0047] The frequency of the radio waves (R1, R2) used for wireless communication between the IC tag 11 and the communicator 16 is mainly in the UHF band (varies by country, but is within the range of 860 MHz to 930 MHz, and in Japan it is between 915 MHz and 930 MHz), and the HF band (13.56 MHz) can sometimes also be used.

[0048] The identification information A and the detection data D1, D2, and D21 acquired by the communication device 16 are input to the calculation device 17. The calculation device 17 performs various calculation processes using the input data. As the calculation device 17, a well-known computer can be used.

[0049] Hereinafter, an example of a procedure for understanding the state of the fender 2 will be described using the present embodiment of the management system 1 .

[0050] like Figure 2 , Figure 3As shown in the example, the communication device 16 is brought close to Figure 1 As an example, the fender 2 installed at the installation site in a state inflated with a predetermined internal pressure is used, and the IC tag 11 is activated by the transmission radio wave R1 transmitted from the radio wave transmitter 16a. By activating the IC tag 11, the pressure sensor 15a and the temperature sensor 15b integrated with the IC tag 11 are also activated. The radio wave receiver 16b receives the reply radio wave R2 transmitted by the activated IC tag 11 according to the transmission radio wave R1, and wireless communication is performed between the IC tag 11 and the communication device 16.

[0051] Since the wireless communication distance is about 1m, the communication device 16 needs to be close to the IC tag 11. In this embodiment, since the visible embedded marker 10 is provided on the outer surface of the body 3, bringing the communication device 16 close to the embedded marker 10 is conducive to stable wireless communication.

[0052] When the IC tag 11 is activated, the identification information A stored in the IC chip 12 is wirelessly communicated by the IC tag 11 through the reply wave R2 and acquired by the communicator 16. In addition, the detection data D1, D2, and D21 detected by the pressure sensor 15A and the temperature sensor 15b when the IC tag 11 is activated are wirelessly communicated by the IC tag 11 through the reply wave R2 and acquired by the communicator 16.

[0053] The identification information A and the detection data D1, D2, and D21 acquired by the communication device 16 are input to the computing device 17. Each piece of identification information A and the position information (installation position information) of the fender 2 provided with the IC tag 11 having each piece of identification information A are associated with the computing device 17 and stored in the computing device 17. The specifications, manufacturing records, and usage records of the fender 2 are also associated with the identification information A and stored in the computing device 17. In addition, the computing device 17 also stores the permissible ranges of the internal pressure of the fender 2, the temperature of the internal space, and the temperature of the main body 3.

[0054] Therefore, the computing device 17 identifies the individual fenders 2 based on the input identification information A, and determines the state of each fender 2 based on the input detection data D1, D2, and D21. That is, the input detection data D1, D2, and D21 are compared with the corresponding allowable ranges to determine the state of the fender 2. As a result of the comparison, it is determined that the detection items exceeding the allowable range are abnormal, and it is determined that the detection items within the allowable range are not abnormal.

[0055] For example, if the value of the detection data D1 is less than the allowable range (low pressure), it can be determined that air leakage has occurred in the fender 2. In addition, it can be determined that the fender 2 has been frequently squeezed and has been used under harsh conditions, resulting in air leakage. If the values ​​of the detection data D2 and D21 are greater than the allowable range, it is determined that the fender 2 is in an abnormally high temperature state, and if the values ​​are less than the allowable range, it is determined that the fender 2 is in an abnormally low temperature state. In addition, it can be determined that the fender 2 is in an abnormally high temperature state or a low temperature state and has been used under harsh conditions.

[0056] The temperature difference between the above-water part and the underwater part of the main body 3 is caused by the air temperature and the water temperature, and the temperature of the internal space of the fender 2 does not have such a significant temperature difference as the temperature difference between the above-water part and the underwater part of the main body 3. That is, the detection data D21 is easily affected by the external environmental temperature, while the detection data D2 is less susceptible to the external environmental temperature than the detection data D21. Therefore, by using the temperature sensor 15b to detect the temperature of the internal space of the fender 2 and the temperature of the main body 3, it is helpful to understand the influence of temperature on the durability of the fender 2 (main body 3) in more detail.

[0057] In addition, it is considered that the degree of deterioration of the main body 3 also changes according to the difference (temperature difference) between the detection data D2 (internal temperature of the fender 2) and the detection data D21 (temperature of the main body 3). Therefore, the influence on the durability of the fender 2 (main body 3) can also be grasped according to the difference between the two. The detection data D2 and the detection data D21 are different depending on the installation position of the temperature sensor 15b. Therefore, in order to grasp the distribution of the detection data D2 (internal temperature of the fender 2) and the detection data D21 (temperature of the main body 3) in the fender 2, it is preferable to install the IC tag 11 at a plurality of separated locations.

[0058] The fender 2 set in a horizontal position rotates in the circumferential direction, so the IC tag 11 set in one position may be located in the water. In this case, wireless communication between the IC tag 11 and the communicator 16 is basically impossible. Therefore, the IC tag 11 is preferably set in multiple positions spaced apart along the circumferential direction of the main body 3. For example, it is set in 2 to 4 positions equally spaced along the circumferential direction of the main body 3. In addition, the fender 2 is sometimes set in a longitudinal position, so in this case, if only one bowl-shaped end 5 is provided with an IC tag 11, the IC tag 11 may be located in the water. Therefore, the IC tag 11 is preferably set in each bowl-shaped end 5.

[0059] According to this embodiment, by wirelessly communicating between the IC tag 11 and the communicator 16, the identification information A and the detection data D1, D2, and D21 can be acquired. Moreover, based on the acquired identification information A and the detection data D1, D2, and D21, the state of each fender material 2 can be easily grasped. Since the pressure sensor 15a and the temperature sensor 15b are made into a structure assembled on the IC tag 11 and integrated with the IC tag 11, the work hours for mounting these components on the fender material 2 can be reduced. Furthermore, since the IC tag 11, the pressure sensor 15a, and the temperature sensor 15b are activated by the transmission wave R1 sent from the communicator 16, it is not necessary to set batteries in these components. Therefore, it is not necessary to replace the batteries for these components, and it is not impossible to obtain data due to battery exhaustion. Therefore, it is conducive to improving maintainability and stably grasping the state of each fender material 2 for a long time.

[0060] like Figure 1 As shown in the example, when a plurality of fenders 2 are arranged and used in a longitudinal arrangement, the severity of the fenders 2 varies depending on the installation position, and accordingly, the degree of wear of each fender 2 also varies. In the management system 1, since the severity of each fender 2 (use status) and the use record of each fender 2 can be grasped, it is convenient to appropriately replace the installation position based on these data so as to make the wear degree of each fender 2 uniform.

[0061] When the fender 2 is stored in a warehouse, it is stored by inflating it at a predetermined internal pressure. When the status of these fenders 2 is known, wireless communication is also performed between the C tag 11 and the communication device 16 according to the above steps. Then, the individual fenders 2 are identified, and the status of the fenders 2 is determined based on the respective detection data D1, D2, and D21. The air leakage of the fender 2 over time can be easily known based on the detection data D1. This is conducive to the operation of quickly replenishing air to the fender 2 whose internal pressure is lower than the standard value due to air leakage.

[0062] Figure 7 The IC tag 11 shown as an example is in a state where it is covered by the covering rubber 6a and buried in the body 3 relative to the already manufactured fender 2. Specifically, the IC tag 11 is bonded to the surface of the inner layer rubber 6 and is entirely covered by the covering rubber 6a. However, the detection parts of the pressure sensor 15a and the temperature sensor 15b are not covered by the covering rubber 6a, but are exposed in the internal space of the fender 2. The covering rubber 6a is bonded to the inner layer rubber 6. The covering rubber 6a may be the same type of rubber as the inner layer rubber 6.

[0063] If the manufactured fender 2 is a large fender (for example, the outer diameter of the body 4 is 2 m or more), the operator can enter and exit the interior of the fender 2 through the metal cover 9. Figure 7 As shown in the example, the IC tag 11 may be embedded in the main body 3 and then installed on the already manufactured fender 2. In this way, if the IC tag 11 is installed on the main body 3 later, the management system 1 can also be applied to the already manufactured fender 2.

[0064] like Figure 8 As shown in the example, the computing device 17 may be designed to be connected to the required terminal device 21 via a communication network such as the Internet. For example, various information (data) is sent from the computing device 17 to the terminal devices 21 of related companies such as the management office of the fender 2 operating company (user), the fender 2 sales company, and the manufacturing company located far away from the place where the fender 2 is used. The information sent to each terminal device 21 is, for example, the detection data D1, D2, and D21 of each fender 2 acquired by the communication device 16, or the judgment result of the state of the fender 2 by the computing device 17. According to this structure, the related companies that own these terminal devices 21 can grasp the internal and external states of the fender 2 at a place far away from the place where the fender 2 is used.

[0065] Fig. 9 Another embodiment of the management system 1 shown as an example further includes a drone 18 and a camera device 19 compared to the previous embodiment. The drone 18 is equipped with a communication device 16 and a camera device 19. The other structures are basically the same as the previous embodiment, and the above-mentioned various specifications can be applied. The camera device 19 can be arbitrarily provided, and by providing the camera device 19, it is helpful to grasp the state of the fender 2 in more detail. In addition, in Figures 9 to 11 In the figure, for reference, the boundaries between the trunk portion 4 and each bowl-shaped end portion 5 are shown by double-dotted lines as an example.

[0066] In this embodiment, the computing device 17 is arranged at a place far from the use place of the fender 2, and the communication device 16 and the computing device 17 are separated and independent. The communication device 16 and the computing device 17 may also be designed to be integrated and mounted on the drone 18.

[0067] The camera device 19 acquires image data M of the fender 2 from the airspace above the fender 2. As the camera device 19, various known digital cameras that acquire still image or moving image data M can be used. The image data M acquired by the camera device 19 is input to the computing device 17.

[0068] The drone 18 may adopt a known specification that can carry the above-mentioned communication device 16 and camera device 19, fly to a desired position, and hover at a fixed position. The drone 18 is provided with a GNSS receiver 20, and the position coordinates of the drone 18 are grasped in real time through the GNSS receiver 20. By inputting the position coordinates of the desired position into the control unit of the drone 18, the drone 18 can be flown to the desired position through automatic control operation.

[0069] The input to the computing device 17 is as follows Fig.10 , which shows the reference image data Mc of the fender 2 in a good state without distortion and unnecessary deformation. The reference image data Mc may be image data actually photographed from the upper airspace of the fender 2, or may be data created based on design data, etc. The computing device 17 is connected to an output device such as a monitor.

[0070] Below, use Fig. 9 The embodiment of the management system 1 shown as an example will describe an example of a procedure for understanding the state of the fender 2 .

[0071] like Fig. 9 As shown in the example, the drone 18 is set to the following state: it takes off from a measurement base such as land or a ship and moves to the airspace above the fender 2. For example, based on the position information of the fender 2 known in advance, the drone 18 is moved to the airspace above the fender 2 by automatic operation using the GNSS receiver 20 installed on the drone 18. When wireless communication is performed between the IC tag 11 and the communication device 16, the drone 18 is continuously positioned in the airspace above the IC tag 11 by automatic operation, so that the distance between the IC tag 11 and the communication device 16 is about 1m. Alternatively, the drone 18 can be positioned in the airspace above the IC tag 11 by the control of the drone operator based on the image data M acquired in real time by the camera device 19. In this embodiment, if the embedded marker 10 is set on the outer surface of the trunk 4, it is easy to make the communication device 16 approach the IC tag 11 using the embedded marker 10 as a mark.

[0072] When the drone 18 (communication device 16) is positioned in the airspace above the IC tag 11, the IC tag 11 is activated by the transmission wave R1 sent from the radio wave transmitter 16a. The radio wave receiver 16b receives the reply wave R2 sent from the IC tag 11 in response to the transmission wave R1, thereby wireless communication is performed between the IC tag 11 and the communication device 16.

[0073] The steps for grasping the state of the fender 2 are the same as those in the previous embodiment, but in this embodiment, Fig. 9As shown in the example, when the drone 18 is in the airspace above the fender 2, the image data Mr of the fender 2 is acquired by the camera device 19. Fig.11 As shown in the example, it is preferable to acquire the image data Mr covering the entire fender 2. The timing of acquiring the image data Mr may be before or after the wireless communication between the IC tag 11 and the communication device 16 is performed.

[0074] The acquired image data Mr is input to the computing device 17. The computing device 17 determines the state of the exterior of the fender 2 based on the difference between the input image data Mr and the preset reference image data Mc. Fig.10 The reference image data Mc and Fig.11 The outer shape (contour) of the fender 2 of each of the acquired image data Mr is shown as an example. If the degree of deformation of the fender 2 of the image data Mr exceeds the preset allowable range relative to the fender 2 of the reference image data Mc, the computing device 17 determines that the fender 2 has been abnormally deformed, and if it is within the allowable range, it is determined that no abnormal deformation has occurred. The degree of deformation of the fender 2 can be easily calculated by the computing device 17 by superimposing the fender 2 of the reference image data Mc and the image data Mr. As a result, it is helpful to grasp the damage of the fender 2 at an early stage.

[0075] Alternatively, the configuration of the fender 2 at the installation site such as the quay wall 22 in the reference image data Mc and the image data Mr may be compared. If the degree of deviation of the configuration of the fender 2 at the installation site in the image data Mr relative to the fender 2 in the reference image data Mc exceeds a preset allowable range, the computing device 17 determines that an abnormal configuration deviation has occurred in the fender 2, and if it is within the allowable range, determines that no abnormal configuration deviation has occurred. As a result, it is advantageous to grasp the abnormality of the installation of the fender 2 at an early stage.

[0076] According to this embodiment, when wireless communication is performed between the IC tag 11 and the communication device 16, it is sufficient to move the drone 18 to the airspace above the IC tag 11. Therefore, it is not necessary for the operator to move to the vicinity of the IC tag 11 to bring the communication device 16 close to the IC tag 11, so that the workload is greatly reduced. Even if the fender 2 is a large fender (for example, the outer diameter of the trunk 4 is 2m or more), the wireless communication can be easily performed.

[0077] Furthermore, by providing the camera device 19, the reference image data Mc and the image data Mr can be compared to understand the external state of the fender 2. That is, by using not only the detection data D1, D2, and D21 detected by the pressure sensor 15a and the temperature sensor 15b but also the image data Mr, it is advantageous to understand the state of the fender 2 in more detail. Figure 8 As shown in the example, when the computing device 17 is configured to be connected to a desired terminal device 21 via a communication network, the image data Mr of each fender 2 acquired by the camera device 19 can be transmitted from the computing device 17 to the terminal device 21 .

[0078] Description of Reference Numerals

[0079] 1: Management system

[0080] 2: Inflatable fender

[0081] 2a: Cable

[0082] 3: Main body

[0083] 4: Trunk

[0084] 5: Bowl-shaped end

[0085] 6: Inner rubber

[0086] 6a: Covering rubber

[0087] 7: Enhancement layer

[0088] 8: Outer rubber

[0089] 9: Metal cover

[0090] 10: Bury the marker

[0091] 11: IC tag

[0092] 12: IC chip

[0093] 13: Antenna

[0094] 14: Substrate

[0095] 14a: Insulation layer

[0096] 15a: Pressure sensor

[0097] 15b: Temperature sensor

[0098] 16: Communication machine

[0099] 16a: Radio wave transmitting unit

[0100] 16b: Radio wave receiving unit

[0101] 17: Computing device

[0102] 18: Drones

[0103] 19: Camera rig

[0104] 20: GNSS Receiver

[0105] 21: Terminal equipment

[0106] 22: Shore wall

[0107] A: Identification information

[0108] D1, D2: test data

[0109] M: Image data

Claims

1. A management system for an inflatable fender, the management system for the inflatable fender comprising: an inflatable fender, wherein at least one of the bowl-shaped ends of a main body of the inflatable fender, which is connected to bowl-shaped ends on both sides of the cylindrical body in the cylinder axis direction, is provided with a metal cover; a passive IC tag, a pressure sensor for detecting the internal pressure of the inflatable fender, and a temperature sensor for detecting the temperature of the internal space of the inflatable fender, all of which are provided on the inflatable fender; and a communication device, which is arranged outside the inflatable fender, The individual of the inflatable fender can be determined based on the identification information of the IC tag acquired by the communication device, and the state of the inflatable fender can be determined based on the detection data detected by the pressure sensor and the temperature sensor acquired by the communication device. in, The pressure sensor and the temperature sensor are mounted on the IC tag and integrated with the IC tag, and have a computing device that is communicably connected to the communication device. The IC tag is activated by a transmission wave sent from the communication device, and the pressure sensor and the temperature sensor are activated. The activated IC tag sends a reply wave according to the transmission wave, thereby performing the wireless communication between the IC tag and the communication device. The communication device acquires the identification information through the wireless communication and inputs it into the computing device, and acquires the detection data detected by the pressure sensor and the temperature sensor when the IC tag is activated through the wireless communication and inputs it into the computing device, The computing device identifies the individual of the pneumatic fender based on the input identification information, and determines the state of the pneumatic fender based on the input detection data.

2. The management system for inflatable fenders according to claim 1, wherein: The IC tag is in a state of being buried in the main body.

3. The management system for inflatable fenders according to claim 2, wherein: The IC tags are provided at a plurality of locations spaced apart in a circumferential direction of the main body.

4. The management system for inflatable fenders according to claim 2 or 3, wherein: The antenna unit constituting the IC tag is a dipole antenna composed of a metal wire.

5. The management system of the pneumatic fender according to any one of claims 2 to 4, wherein: An embedding mark indicating the embedding position of the IC tag is provided on the outer surface of the main body corresponding to the embedding position of the IC tag.

6. The management system of the inflatable fender according to any one of claims 2 to 5, wherein the management system of the inflatable fender is designed so that the temperature sensor detects the temperature of the main body at a position where the temperature sensor is buried, and the temperature of the main body detected by the temperature sensor is also used as the detection data detected by the temperature sensor.

7. The management system of the pneumatic fender according to any one of claims 1 to 6, wherein: The communication machine is carried on the unmanned aerial vehicle.

8. The management system for inflatable fenders according to claim 7, wherein: The drone is equipped with a camera device, and image data acquired by the camera device is input to the computing device. The computing device determines the state of the inflatable fender based on the input image data.

9. A method for managing an inflatable fender, wherein a passive IC tag, a pressure sensor for detecting the internal pressure of the inflatable fender, and a temperature sensor for detecting the temperature of the internal space of the inflatable fender are arranged on the inflatable fender, the inflatable fender has a main body having bowl-shaped ends connected to both sides of a cylindrical body in the cylinder axis direction, at least one of the bowl-shaped ends is provided with a metal cover, and a communication device is arranged outside the inflatable fender. The individual of the inflatable fender is determined according to the identification information of the IC tag acquired by the communication device, and the state of the inflatable fender is determined according to the detection data detected by the pressure sensor and the temperature sensor acquired by the communication device. in, The pressure sensor and the temperature sensor are designed to be mounted on the IC tag and integrated with the IC tag, and a computing device is provided to be communicatively connected to the communication device. The IC tag is activated by a transmission wave sent from the communication device, and the pressure sensor and the temperature sensor are activated. The activated IC tag sends a reply wave according to the transmission wave, thereby wireless communication is performed between the IC tag and the communication device. The communication device acquires the identification information through the wireless communication and inputs it into the computing device, and acquires the detection data detected by the pressure sensor and the temperature sensor when the IC tag is activated through the wireless communication and inputs it into the computing device, The computing device identifies the individual of the pneumatic fender based on the input identification information, and determines the state of the pneumatic fender based on the input detection data.

10. The method for managing a pneumatic fender according to claim 9, wherein the IC tag is embedded in the body during the manufacturing process of the pneumatic fender, or the IC tag is embedded in the body and then mounted on the manufactured pneumatic fender.

Images