Management System

Abstract

To provide a management system that can automatically and accurately detect the amount of waste produced. [Solution] The management system includes an RFID tag attached to a diaper, a weight measuring unit that measures the weight of the diaper to which the RFID tag is attached, and a processing unit that calculates the weight difference of the diaper before and after use based on the weight of the diaper measured by the weight measuring unit after use, and associates the weight difference with the ID information of the RFID tag and the personal ID of the user wearing the diaper.

Description

【Technical Field】 【0001】 This disclosure relates to a management system. 【Background Art】 【0002】 Conventionally, there is a diaper equipped with a transmitter in a first place configured to be contaminated by excrement and configured to become inactive when contaminated by excrement. The transmitter can be configured to transmit signals at regular intervals and / or at different intervals when not contaminated. The intervals can be set in advance. The intervals can be self-adjusted according to the amount of contamination of the transmitter (see, for example, Patent Document 1). 【Prior Art Documents】 【Patent Documents】 【0003】 【Patent Document 1】 Japanese Patent Translation of PCT International Publication No. 2022-529768 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 The diaper described in Patent Document 1 detects the presence or absence of excrement and the amount of excrement according to the communication state of the transmitter. However, since the detection is performed based on the communication state of the transmitter, it is difficult to accurately detect the amount of excrement (excretion amount). 【0005】 For example, if the excretion amount can be accurately detected, it is possible to grasp the appropriate replacement time of the diaper and select a diaper with an appropriate absorption amount. By selecting a diaper with an appropriate absorption amount, the diaper cost can be saved and the economic burden can be reduced. 【0006】 In addition, in nursing homes and the like, it is required to reduce the burden on the workers who change the diapers of the care recipients and the physical and mental burden on the care recipients. If the excretion amount can be automatically detected, these burden reductions can be achieved. 【0007】 Therefore, this disclosure aims to provide a management system capable of automatically and accurately detecting the amount of excretion. [Means for solving the problem] 【0008】 A management system according to one aspect of an embodiment of the present disclosure includes an RFID tag attached to a diaper, a weight measuring unit that measures the weight of the diaper to which the RFID tag is attached, and a processing unit that calculates the weight difference of the diaper before and after use based on the weight of the diaper measured by the weight measuring unit after use, and associates the weight difference with the ID information of the RFID tag and the personal ID of the user wearing the diaper. 【0009】 In this embodiment, the processing unit automatically calculates the weight difference of the diaper before and after use, and the weight difference, ID information, and personal ID are automatically associated. Therefore, data that allows for the accurate determination of the amount of excretion of the person identified by the personal ID is automatically obtained. Thus, a management system capable of automatically and accurately detecting the amount of excretion can be provided. 【0010】 Furthermore, this configuration makes it possible to determine which diapers a person identified by their personal ID was using, thus providing data to determine whether the diaper had an appropriate absorbency for the amount of excretion. 【0011】 In a management system relating to another aspect of the embodiments of this disclosure, the weight difference may be the weight of the excrement excreted by the user of the diaper. 【0012】 According to this embodiment, data that allows for the determination of the exact weight of the excrement of a person identified by their personal ID can be automatically obtained. 【0013】 A management system relating to another aspect of the embodiments of this disclosure further includes a cart for collecting used diapers, and the weight measuring unit may be provided on the cart. 【0014】 According to this embodiment, when collecting used diapers with a cart, the weight of the used diapers can be measured by a weight measuring unit provided on the cart, thereby reducing the burden of measuring the weight of used diapers and enabling efficient measurement of the weight of used diapers. 【0015】 In a management system relating to another aspect of the embodiments of this disclosure, the cart may have a collection container for collecting used diapers, and the weight measuring unit may measure the weight of the diapers by measuring the weight of the collection container. 【0016】 According to this embodiment, when collecting used diapers with a cart, the weight of the used diapers can be measured simply by placing the used diapers in the collection container on the cart. This further reduces the burden of measuring the weight of used diapers and makes it possible to measure the weight of used diapers more efficiently. 【0017】 In a management system relating to another aspect of the embodiments of this disclosure, the collection container may be mounted on the weight measuring unit. 【0018】 According to this embodiment, since the collection container is mounted on the weight measuring unit, the weight of the used diaper can be measured easily and reliably. 【0019】 In a management system relating to another aspect of the embodiments of this disclosure, the processing unit may measure the weight of each diaper individually. 【0020】 According to this embodiment, since the weight of each used diaper can be measured individually, the amount of excrement excreted while using one diaper can be accurately measured. 【0021】 In a management system relating to another aspect of the embodiments of this disclosure, the processing unit may measure the weight of multiple diapers together. 【0022】 According to this aspect, the amounts of excrement discharged into a plurality of diapers can be accurately measured collectively. 【0023】 In a management system according to another aspect of the embodiments of the present disclosure, the management system further includes a reader device provided in a room of a user wearing the diaper and capable of reading the ID information of the RFID tag. The processing unit associates the ID information of the RFID tag read by the reader device before use of the diaper with the personal ID of the user wearing the diaper, calculates the weight difference before and after use of the diaper based on the weight of the diaper measured by the weight measurement unit after use of the diaper, and may associate the weight difference, the ID information of the RFID tag, and the personal ID of the user wearing the diaper. 【0024】 According to this aspect, the ID information of the RFID tag attached to the diaper worn by the user can be read by a reader device provided in the room of the user wearing the diaper, and the ID information of the diaper worn by the user, the weight difference, and the personal ID of the user wearing the diaper can be accurately and reliably associated. 【0025】 In a management system according to another aspect of the embodiments of the present disclosure, the management system further includes a first reader device provided in a room of a user wearing the diaper and capable of reading the ID information of the RFID tag, and a second reader device provided on the cart and capable of reading the ID information of the RFID tag. The processing unit associates the ID information of the RFID tag read by the first reader device before use of the diaper with the personal ID of the user wearing the diaper and stores the associated information in table data, and may associate the weight difference with the ID information corresponding to the ID information of the RFID tag read by the second reader device after use of the diaper in the table data. 【0026】 According to this aspect, the ID information of the RFID tag attached to the diaper worn by the user can be read by the first reader device provided in the living room of the user wearing the diaper, and the ID information of the diaper worn by the user, the weight difference, and the personal ID of the user wearing the diaper can be accurately and reliably associated. Further, when collecting the used diaper with a cart, the ID information of the RFID attached to the used diaper can be easily and reliably read by using the second reader device provided in the cart. 【0027】 In the management system according to another aspect of the embodiment of the present disclosure, the cart further includes a reader device provided on the cart and capable of reading the ID information of the RFID tag, and the processing unit associates the ID information of the RFID tag read by the reader device before use of the diaper with the personal ID of the user wearing the diaper and stores the associated information in table data, and may associate the weight difference with the corresponding ID information in the table data for the ID information of the RFID tag read by the reader device after use of the diaper. 【0028】 According to this aspect, the ID information of the RFID tag attached to the diaper worn by the user can be read in the living room of the user wearing the diaper by using the reader device provided on the cart, and the ID information of the diaper worn by the user, the weight difference, and the personal ID of the user wearing the diaper can be accurately and reliably associated. Further, when collecting the used diaper with a cart, the ID information of the RFID attached to the used diaper can be easily and reliably read by using the reader device provided in the cart. 【0029】 In the management system according to another aspect of the embodiment of the present disclosure, the system further includes a terminal device that transmits the ID information read by the reader device before use of the diaper in association with the personal ID to the processing unit, and the processing unit may associate the ID information of the RFID tag read by the reader device before use of the diaper received from the terminal device with the personal ID of the user wearing the diaper and store the associated information in table data. 【0030】 According to this embodiment, by further including a terminal device that associates ID information read by a reader device installed in a living room or cart with a personal ID and transmits it to a processing unit, the ID information of the RFID tag attached to the diaper used by the user can be reliably associated with the personal ID at the diaper changing area, and the weight of the diaper currently worn by the user can be easily managed using the ID information of the RFID tag. 【0031】 A management system relating to another aspect of the embodiments of this disclosure further includes a terminal device that associates the weight of the diaper measured by the weight measuring unit after the use of the diaper with the ID information of the RFID tag read after the use of the diaper and transmits it to the processing unit, the processing unit may calculate the weight difference of the diaper before and after use based on the weight of the diaper received from the terminal device, and associate the weight difference with the ID information received from the terminal device with the personal ID. 【0032】 According to this embodiment, by associating the weight of the used diaper with ID information and transmitting it from the terminal device to the processing unit, the processing unit can easily manage the used diaper weight, ID information, and personal ID in association with each other. 【0033】 In a management system relating to another aspect of the embodiments of this disclosure, the diapers may be of a plurality of types with different absorption capacities, and the processing unit may, based on the weight difference, extract the type with the optimal absorption capacity from among the plurality of types for the personal ID associated with the weight difference. 【0034】 According to this embodiment, for users identified by their personal ID, it is possible to select a diaper with the optimal absorbency based on weight differences obtained in the past. This reduces the economic burden by saving on diaper costs and enables the effective use of the absorbent material in diapers by selecting a diaper with the appropriate absorbency. [Effects of the Invention] 【0035】 According to this disclosure, it is possible to provide a management system that can automatically and accurately detect the amount of excretion. [Brief explanation of the drawing] 【0036】 [Figure 1] This figure shows an example of the application of the management system according to the embodiment. [Figure 2A] This figure shows an example of the data structure of the management database stored in the memory of the management device 2. [Figure 2B] This figure shows an example of the data structure of a disposable diaper database. [Figure 3] This figure shows an example of a screen for inputting the use of disposable diapers. [Figure 4] This figure shows another example of a disposable diaper usage input screen. [Figure 5] This figure shows an example of a structure in which an RFID tag 142A is attached to a disposable diaper 142. [Figure 6] This figure shows an example of the data structure of the management database stored in the memory of the management device 2. [Figure 7A] This is a functional block diagram of the management system according to the embodiment. [Figure 7B] This figure shows an example of the configuration for acquiring weight difference data within Management System 1. [Figure 8] This is a sequence diagram of the operation in the management system according to the embodiment. [Figure 9A] This is a sequence diagram of the operation in the management system according to the embodiment. [Figure 9B] This is a sequence diagram of the operation in the management system according to the embodiment. [Figure 10] This is a hardware configuration diagram of the management device 2, mobile terminal 3, and tablet terminal 143. [Modes for carrying out the invention] 【0037】 The embodiments will be described below with reference to the attached drawings. To facilitate understanding of the explanation, the same reference numerals will be used for identical components in each drawing whenever possible, and redundant explanations will be omitted. In addition, the length, diameter, thickness, etc. of each part may be exaggerated below to make the configuration easier to understand. 【0038】 <Embodiment> Figure 1 shows an example of the application of the management system 1 according to the embodiment. The management system 1 of the embodiment is a system for managing disposable diapers 142 provided to a person requiring care 114. Disposable diapers 142 are an example of diapers. More specifically, the management system 1 can manage each disposable diaper 142 based on the tag ID of the RFID (Radio Frequency Identifier) ​​tag 142A by attaching an RFID (Radio Frequency Identifier) ​​tag 142A to the disposable diaper 142. The tag ID is an example of ID information. 【0039】 Furthermore, the management system 1 is a system that can obtain data representing the amount of excretion (weight of excrement) of the care recipient 114 by calculating the weight difference before and after use of each disposable diaper 142. In this explanation, the example of a diaper is a disposable diaper 142, but the example of a diaper may be a diaper made of a material other than paper. Also, the diaper may not be disposable but can be reused by washing, etc. 【0040】 The management system 1 includes a mobile terminal 3 carried by worker U, a management device 2 capable of communicating with the mobile terminal 3, a reader device 115, and a cart 141. The mobile terminal 3 is an example of a terminal device. The reader device 115 is an example of a first reader device. The cart 141 is used for changing disposable diapers 142 and transports used disposable diapers 142. The cart 141 has a group of disposable diapers 142G, a tablet terminal 143, a reader device 144, a weight sensor 145, and a collection container 146. The reader device 144 is an example of a second reader device. The group of disposable diapers 142G is a collection of multiple disposable diapers 142, which are contained in a container mounted on the cart 141. 【0041】 Here, "pre-use diaper 142" refers to an unused diaper 142, and "post-use diaper 142" refers to a used diaper 142. The weight difference of the diaper 142 before and after use is the weight difference obtained by subtracting the weight of the pre-use diaper 142 from the weight of the post-use diaper 142, and corresponds to the weight of the excrement excreted by the care recipient 114 while using the diaper 142. "The care recipient 114 using the diaper 142" means that the care recipient 114 is wearing the diaper 142. 【0042】 In the example shown in Figure 1, a configuration is illustrated that includes one worker U and one mobile terminal 3 carried by this worker U. However, a configuration in which multiple workers U each carry multiple mobile terminals 3 is also possible. Even in the case of a configuration with multiple mobile terminals 3, it is preferable that there is only one management device 2, and that this single management device 2 communicates individually with the multiple mobile terminals 3. 【0043】 Furthermore, in the management system 1, the management device 2 manages specific tasks by having worker U perform specific tasks in at least one work area within a predetermined workspace. In the example in Figure 1, a nursing care facility 100 is given as an example of a "workspace". Also, as an example of a "work area", a specific bed 113 assigned to a specific care recipient 114 residing in the nursing care facility 100 and the space surrounding that bed 113 are included. One example of a case in which work areas are set up in this way is when multiple beds 113 are arranged in one room 110 within the nursing care facility 100. This allows one room 110 to be divided into multiple work areas. 【0044】 Furthermore, in the case where only a single bed 113 is placed in one room 110 within the nursing care facility 100, the entire room 110 where the care recipient 114 assigned to this bed 113 resides may be designated as a "work area where a specific task is performed by worker U." 【0045】 Furthermore, the subjects of specific tasks may include, for example, people and animals that fall outside the concept of patients or other persons requiring care (114). If the subject of the task is a patient, the "work space" could be exemplified by the hospital where the patient is hospitalized, and the "work area" could be exemplified by the bed in the hospital room assigned to the patient. Similarly, if the subject of the task is an animal, the "work space" could be exemplified by the animal hospital where the animal is hospitalized, and the "work area" could be exemplified by the cage or other enclosure in which the hospitalized animal is housed. 【0046】 Furthermore, in this embodiment, an example of "specific tasks performed by worker U in the work area" includes providing care services to the care recipient 114, and in particular, the provision of goods. In the example in Figure 1, an example of "specific tasks" is the task of changing a disposable diaper 142 for the care recipient 114. In this case, worker U approaches the bed 113 while carrying a cart 141 loaded with a group of disposable diapers 142G. Once the cart 141 is near the bed 113, worker U selects one disposable diaper 142 suitable for the care recipient 114 in the bed 113 from the group of disposable diapers 142G on the cart 141, and uses the selected disposable diaper 142 to change the disposable diaper 142 that the care recipient 114 is wearing. 【0047】 In other words, in the example in Figure 1, the "items" in the "task of providing items to care recipient 114" are disposable diapers. Examples of "items" other than disposable diapers include, for example, hospital admission sets such as toothbrushes and towels provided to each inpatient in a hospital, or food, daily necessities, and sanitary products that care recipient 114 or patients can order individually. 【0048】 In management system 1, a High Frequency (HF) tag 140 for identifying the care recipient is installed near the bed 113, which is the work area. Here, "near the bed 113" refers to, for example, any part of the bed 113 or the surrounding wall surface, as illustrated in Figure 1. The RFID tag 140 for identifying the care recipient can be read using HF band radio waves. 【0049】 By installing the RFID tag 140 for identifying the person requiring care near the bed 113 in this manner, it becomes easier for worker U to read the RFID tag 140 when entering the work area including the bed 113. This reduces the effort required of worker U when approaching the bed 113 where the person requiring care 114 is located during diaper changing. 【0050】 In the example shown in Figure 1, worker U is moving towards a specific bed 113 in a room 110 where a specific care recipient 114 is sleeping, and worker U is using a mobile terminal 3 to obtain the care recipient ID of this care recipient 114 from an RFID tag 140 installed on the bed 113. The mobile terminal 3 can communicate with the RFID tag 140 wirelessly and can obtain the identification information (care recipient ID) of the care recipient from the RFID tag 140. The care recipient ID of care recipient 114 is an example of a personal ID. 【0051】 When worker U approaches a specific bed 113 (work area) in the living room 110, mobile terminal 3 determines the type of work area based on the care recipient ID read from the care recipient identification RFID tag 140. In other words, it can determine who the care recipient 114 is in the work area that worker U is approaching. It can then change the display content of a specific task displayed on the display unit according to the type of work area. In short, mobile terminal 3 can display a screen on the display unit related to a specific task according to the type of work area. 【0052】 More specifically, the mobile terminal 3 transmits the care recipient ID information read from the care recipient identification RFID tag 140 to the management device 2. Based on the care recipient ID received from the mobile terminal 3, the management device 2 transmits "work instruction information" related to a specific task according to the type of work area to the mobile terminal 3 that transmitted the care recipient ID. Based on the work instruction information received from the management device 2, the mobile terminal 3 displays a screen related to the specific task according to the type of work area on its display unit. 【0053】 In the example shown in Figure 1, the mobile terminal 3 is triggered when worker U approaches a specific bed 113, and displays a screen on its display unit containing information about the tasks to be performed for the care recipient 114 assigned to that bed 113, thereby notifying worker U. 【0054】 <Reader device 115> The reader device 115 is installed in the living room 110. For example, the reader device 115 is installed on the wall of the living room 110. Here, we will describe a configuration in which one reader device 115 is installed in one living room 110, but multiple reader devices 115 may be installed in one living room 110. Each reader device 115 in each living room 110 is assigned an ID to identify it. 【0055】 The reader device 115 is activated by the mobile terminal 3 when a specific task based on work instruction information received by the mobile terminal 3 from the management device 2 is a diaper changing task, and reads the RFID tag 142A of the diaper 142. The diaper changing task includes not only the task of worker U changing the diaper 142 of the person requiring care 114, but also the task of putting the diaper 142 on the person requiring care 114 for the first time. 【0056】 For example, when the reader device 115 receives a command from the mobile terminal 3 and is activated, it starts transmitting a reading signal to read the RFID tag 142A. When worker U holds the unused diaper 142 over the reader device 115, the RFID tag 142A attached to the diaper 142 is read. The reader device 115 reads the RFID tag 142A and obtains the tag ID of the RFID tag 142A. Note that the tag ID of the RFID tag 142A attached to the diaper 142 may be referred to as the tag ID of the diaper 142. 【0057】 Furthermore, the reader device 115 is not limited to being configured to start up and begin transmitting a read signal when it receives a command from the mobile terminal 3; it may also transmit a read signal at predetermined intervals (for example, every 10 seconds). 【0058】 When the reader device 115 reads the tag ID, it transmits the tag ID to the mobile terminal 3. When the mobile terminal 3 receives the tag ID, it associates the care recipient ID read from the care recipient identification RFID tag 140 with the tag ID and transmits it to the management device 2. When the management device 2 receives the associated care recipient ID and tag ID, it stores the associated care recipient ID and tag ID in the management database (hereinafter referred to as the management DB). 【0059】 <Cart 141> Cart 141 is loaded with a group of disposable diapers 142G. Cart 141 has a tablet terminal 143, a reader device 144, a weight sensor 145, and a collection container 146. The weight sensor 145 is an example of a weight measuring unit. 【0060】 <Tablet device 143> The tablet terminal 143 is a terminal device (tablet computer) that has a display and a touch panel and can be operated by touching images such as a GUI (Graphical User Interface) displayed on the display. For example, the tablet terminal 143 is attached to the handle of the cart 141. The tablet terminal 143 is attached to the handle because it is in a position that is easy for worker U to see when pushing or pulling the cart 141 by hand. The tablet terminal 143 is connected to the reader device 144 and the weight sensor 145. 【0061】 <Reader device 144> The reader device 144, like the reader device 115, is a device capable of reading the RFID tag 142A. The reader device 144 is attached to the handle of the cart 141 so as to be located on top of the collection container 146. The collection container 146 has an opening at the top, through which used diapers 142 are placed inside. The reader device 144 is located on top of the collection container 146 to make it easier for worker U to read the RFID tag 142A attached to the diaper 142 when placing the used diaper 142 inside the collection container 146. 【0062】 <Weight Sensor 145> The weight sensor 145 is installed on the floor of the trolley portion of the cart 141. The weight sensor 145 measures weight and can output weight data to the tablet terminal 143. 【0063】 <Collection container 146> The collection container 146 is mounted on the cart 141, for example, by being placed on top of the weight sensor 145. Here, we describe a configuration in which the collection container 146 is placed on top of the weight sensor 145, but the collection container 146 is not limited to being placed on top of the weight sensor 145; for example, it may be suspended from the weight sensor 145 and mounted on the cart 141. 【0064】 The collection container 146 can be any container capable of collecting used disposable diapers 142, for example, a container made of resin with an opening at the top. The collection container 146 can have any configuration as long as it can collect used disposable diapers 142, and may be made of materials other than resin. The opening of the collection container 146 is not limited to the top, but may also be located on the side, or may extend across both the top and the side. The opening of the collection container 146 may be provided with a movable lid. It is preferable that the reader device 144 is positioned so as to overlap a part of the opening of the collection container 146. This is because it makes it easier to read the RFID tag 142A when a used disposable diaper 142 is placed in the collection container 146. 【0065】 <Data structure of the management database> Figure 2A shows an example of the data structure of the management DB stored in the memory of the management device 2. As shown in Figure 2A, in addition to the caregiver ID and tag ID, the date and time when the disposable diaper 142 was changed is registered as an associated date and time, for example. The date and time when the disposable diaper 142 was changed is, for example, the date and time represented by the timestamp when the reader device 115 read the tag ID. 【0066】 <Disposable Diaper Database> Figure 2B shows an example of the data structure of a disposable diaper database. The disposable diaper database, as an example, is a table data set that associates 142 types of disposable diapers with their absorption capacity and weight. 【0067】 In Figure 2B, as an example, the types of disposable diapers 142 are shown by their product names (Product 1, Product 2, Product 3), but specifically, the types of disposable diapers 142 are, for example, the product codes corresponding to the product names of each disposable diaper 142. Absorption capacity represents the amount of excrement that each disposable diaper 142 can absorb. In Figure 2B, as an example, absorption capacity is expressed in terms of the number of urinations. Products 1, 2, and 3 have the capacity to absorb 2, 5, and 8 urinations, respectively. Weight is the weight of each disposable diaper 142 before use. 【0068】 Furthermore, the RFID tag 142A attached to each diaper 142 contains type data that indicates the type of diaper 142, in addition to the tag ID. Therefore, when the RFID tag 142A of the diaper 142 is read by the reader device 115 or 144, the tag ID and the data indicating the type of diaper 142 can be obtained. 【0069】 <Disposable diaper usage input screen 431> Figure 3 shows an example of the disposable diaper usage input screen 431. The disposable diaper usage input screen 431 is displayed on the display unit of the mobile terminal 3 when worker U approaches the bed 113 where the care recipient 114 is sleeping, in cases where the specific task is changing the care recipient 114's disposable diaper. 【0070】 As shown in Figure 3, the disposable diaper usage input screen 431 has a bed number display area 432, a care recipient name display area 433, and a disposable diaper information display area 434. 【0071】 The bed number display area 432 displays the bed number of bed 113 that worker U is approaching. The bed number information is obtained, for example, based on the care recipient ID acquired when approaching the bed. 【0072】 The care recipient name display area 433 displays the name of care recipient 114 that worker U is approaching. The care recipient's name is obtained based on the care recipient ID, etc., acquired when the worker approaches the bed. 【0073】 The diaper information display area 434 displays multiple diaper buttons 434A, each corresponding to one of several types of diapers for use by the care recipient 114. Each diaper button 434A includes a diaper image 434B showing the appearance of the assigned diaper, and a cumulative usage count 434C indicating the amount of the assigned diaper that has been used by the care recipient 114 in the past. 【0074】 In the example shown in Figure 3, the diaper information display area 434 displays a total of 12 diaper buttons 434A, arranged in 4 rows vertically and 3 columns horizontally. In the example shown in Figure 3, the first row from the top displays 3 diaper buttons 434A corresponding to 3 types of pull-up diapers, and each button 434A displays an image 434B of the corresponding type of diaper. In addition, in the example shown in Figure 3, among the 3 types of pull-up diapers, the diaper corresponding to button 343A in the second column from the left has been used 5 times by the care recipient 114 in the past, and the cumulative usage count 434C on this button 343A displays the information "Cumulative 5 diapers". 【0075】 In the example in Figure 3, the second row from the top displays three diaper buttons 434A, corresponding to three types of tape-fastening diapers, and each button 434A displays an image 434B of the corresponding type of diaper. Also in the example in Figure 3, among the three types of tape-fastening diapers, the diaper corresponding to button 343A in the first column from the left has been used twice by the care recipient 114 in the past, and the cumulative usage count 434C on this button 343A displays the information "Cumulative 2 diapers". 【0076】 In the example in Figure 3, the third and fourth rows from the top display six diaper buttons 434A corresponding to six types of pad-type disposable diapers, and each button 434A displays an image 434B of the corresponding type of disposable diaper. Also in the example in Figure 3, among the six types of pad-type disposable diapers, the diaper corresponding to button 343A in the third row from the top and second column from the left has been used twice by the care recipient 114 in the past, and the cumulative usage count 434C on this button 343A displays the information "Cumulative 2 diapers". Similarly, the diaper corresponding to button 343A in the fourth row from the top and third column from the left has been used five times by the care recipient 114 in the past, and the cumulative usage count 434C on this button 343A displays the information "Cumulative 5 diapers". 【0077】 The cumulative usage count information 434C displayed in the diaper information display area 434 is obtained based on the care recipient ID, etc., acquired when the patient approaches the bed. In addition, the content of the diaper image 434B displayed in the diaper information display area 434 may be selected and displayed based on the care recipient ID, etc., to be appropriate for the care recipient. 【0078】 When worker U changes the diaper of care recipient 114, he first takes one diaper from the group of diapers 142G on the cart 141 and changes the diaper. After that, worker U presses a button on the diaper information display area 434 on the diaper usage input screen 431 of the mobile terminal 3, which corresponds to the diaper newly used in this operation. As a result, the display content changes so that the cumulative usage count 434C on the pressed diaper button 434A increases by one. 【0079】 In this way, the mobile terminal 3 displays multiple diaper buttons 434A in the diaper information display area 434 of the diaper usage input screen 431, each corresponding to one of several types of diapers to be used for the care recipient 114 who is the target of the diaper changing work. Then, in response to the operation of the diaper buttons 434A by the worker U, the mobile terminal 3 acquires information on the type of diaper used for the care recipient 114 who is the target of the diaper changing work. With this configuration, information on the diapers to be used for the care recipient 114 can be presented in a manner that is easy for the worker U to visually grasp. In addition, since the worker U can input information on the diapers used by operating buttons, the input operation can be made simpler. This reduces the workload of the worker U, suppresses input errors, and allows the mobile terminal 3 to acquire diaper usage information more reliably. 【0080】 Furthermore, in response to the operation of the diaper button 434A by worker U, the mobile terminal 3 displays information on the cumulative amount of diapers used by the care recipient 114 on the diaper usage input screen 431. This configuration clearly indicates to worker U whether the button operation was performed correctly by the change in the cumulative usage amount displayed in the cumulative usage count column 434C on the diaper button 434A on the diaper usage input screen 431, thereby improving worker U's work efficiency. 【0081】 Note that the display method of the diaper information display area 434 on the diaper usage input screen 431 may be other than the example in Figure 3. For example, instead of displaying the cumulative usage count 434C as text information such as numbers, the background color of the diaper button 434A may be changed according to the number of diapers used. Alternatively, the diaper button 434A corresponding to the type of diaper to be used in the current diaper change operation may be highlighted, for example by flashing, to present it to the worker U. 【0082】 <Disposable diaper usage input screen 531> Figure 4 shows another example of the diaper usage input screen 531. In the example in Figure 3, the diapers to be used for the care recipient are shown as buttons, but a list display method, as shown in the diaper usage input screen 531 in Figure 4, is also acceptable. 【0083】 As shown in Figure 4, the disposable diaper usage input screen 531 has a bed number display area 532, a care recipient name display area 533, and a disposable diaper information display area 534. The bed number display area 532 and the care recipient name display area 533 have the same functions as the bed number display area 432 and the care recipient name display area 433 shown in Figure 3, so their explanation is omitted. 【0084】 The diaper information display area 534 displays a list of multiple types of disposable diapers for use by the care recipient 114. The list displays multiple pieces of information related to a specific diaper, arranged vertically on the same line. In the example in Figure 4, each line of the list includes a product name display area 534A, a size display area 534B, a product image display area 534C, and a quantity display area 534D. 【0085】 The product name display area 534A displays the product name of a specific disposable diaper. 【0086】 The size display area 534B shows the size of a specific disposable diaper. 【0087】 The product image display area 534C displays an image of a specific disposable diaper product. 【0088】 The usage count display area 534D displays information on the number of times a particular disposable diaper has been used in the past by the care recipient 114. 【0089】 In the example in Figure 4, the diaper information display area 434 lists the diapers in the following order from top to bottom: pull-up type, tape-fastening type, and pad type. For the pull-up type, the product name display area 534A displays three product names: "Product A," "Product B," and "Product C." The size display area 534B displays three sizes for each product. The product image display area 534C displays the product image for each product. The usage count display area 534D shows information indicating that five "S-size" diapers of "Product A" have been used by the care recipient 114 in the past. Note that Product A, Product B, and Product C are product names representing the types of diapers 142, and are expressed using a different notation than Product 1, Product 2, and Product 3 shown in Figure 2B. Product A, Product B, and Product C may be the same as or different from Product 1, Product 2, and Product 3. 【0090】 In the example in Figure 4, for the tape-fastening type, the product name display area 534A shows three product names: "Product D," "Product E," and "Product F." The size display area 534B shows three sizes for each product. The product image display area 534C shows the product image for each product. The usage count display area 534D shows information indicating that two "LL size" disposable diapers of "Product D" have been used by the care recipient 114 in the past. The size refers to the waist size. Also, the absorption capacity differs depending on the type of product. In other words, there are multiple types (product types) of disposable diapers with different absorption capacities. The absorption capacity differs, for example, to the equivalent of 2, 5, or 8 urinations. The higher the number of urinations, the greater the amount of excrement absorbed, making it suitable for prolonged wear, such as during sleep. 【0091】 In the example shown in Figure 4, the list of pad types is not fully displayed on the screen of the mobile device 3. When all types of diapers cannot be fully displayed on the screen of the mobile device 3, only a portion of the list is displayed, depending on the size of the diaper information display area 434. Then, for example, by swiping up or down within the range of the diaper information display area 434 on the screen of the mobile device 3, the list displayed on the screen of the mobile device 3 can be moved up or down, and the range of rows displayed can be changed. 【0092】 The information on the number of diapers used, displayed in the diaper usage display area 534D of the diaper information display area 534, is obtained based on the care recipient ID acquired when the patient approaches the bed. Furthermore, the product information displayed in the diaper information display area 534 may be selected and displayed based on the care recipient ID, etc., to be appropriate for the care recipient. 【0093】 When worker U changes the diaper of care recipient 114, he first takes one diaper from the group of diapers 142G on the cart 141 and changes the diaper. After that, worker U performs an input operation on the diaper information display area 534 on the diaper usage input screen 531 of the mobile terminal 3 by tapping or pressing any point on a specific row in the list corresponding to the diaper newly used in this operation. As a result, the display content is changed so that the number of diapers used in the usage count display area 534D of the row in which the input operation was performed increases by one. 【0094】 In this way, the mobile terminal 3 displays a list of multiple types of disposable diapers for use by the care recipient 114 who is the target of the diaper changing operation in the disposable diaper information display area 534 of the disposable diaper usage input screen 531. Then, in response to the operation performed by worker U on the row corresponding to a specific disposable diaper on the list, information on the type of disposable diaper used by the care recipient 114 who is the target of the diaper changing operation is obtained. With this configuration, information on disposable diapers for use by care recipient 114 can be presented in a list display that is easy for worker U to intuitively understand. Furthermore, since the display mode is a list display, the types of various information related to disposable diapers, such as the type and size of disposable diapers to be displayed in the disposable diaper information display area 534 of the disposable diaper usage input screen 531 can be arbitrarily increased, making it easier for worker U to find the product that needs to be entered, thereby improving worker U's convenience. As a result, the convenience of worker U's work is improved, while the mobile terminal 3 can more reliably obtain disposable diaper usage information. 【0095】 Furthermore, in response to an operation performed by worker U on a specific row of the list displayed in the diaper information display area 534, the mobile terminal 3 displays information on the cumulative amount of diapers used by the care recipient 114 in the usage count display area 534D of the list on the diaper information display area 534 of the diaper usage input screen 531. This configuration clearly indicates to worker U whether the operation input was performed correctly by changing the numerical value of the cumulative usage displayed in the usage count display area 534D of the list on the corresponding row, thereby improving the work efficiency of worker U. 【0096】 Note that the display configuration of the diaper information display area 534 on the diaper usage input screen 531 may be other than the example in Figure 4. For example, each row of the list displayed in the diaper information display area 534 may display only the product name display area 534A, the size display area 534B, the product image display area 534C, and a portion of the number of diapers used display area 534D, or it may be configured to display another display area that shows information other than these. Alternatively, instead of displaying the number of diapers used as text information in the number of diapers used display area 534D, the background color of each row of the list may be changed according to the number of diapers used for that product. Furthermore, the corresponding row of the list corresponding to the type of diaper to be used for the current diaper change may be highlighted, for example by flashing, to present it to the worker U. 【0097】 <Structure for attaching RFID tag 142A to disposable diaper 142> Figure 5 shows an example of a structure for attaching an RFID tag 142A to a disposable diaper 142. The RFID tag 142A only needs to be attached to the disposable diaper 142, and in Figure 5, as an example, it is attached to the disposable diaper 142. To attach the RFID tag 142A to the disposable diaper 142, the RFID tag 142A may be attached to the disposable diaper 142 with double-sided tape or the like, sewn on with thread or the like, or attached by various other methods. 【0098】 However, the RFID tag 142A is not limited to being attached to the diaper 142; for example, the diaper 142 may have a pocket and the RFID tag 142A may be placed inside the pocket. Also, since the diaper 142 has tape for rolling it up and securing it after use, the RFID tag 142A may be attached to this tape. 【0099】 The RFID tag 142A has a memory that stores a tag ID and type data representing the type of disposable diaper 142. When the RFID tag 142A is read by the reader device 115 or 144, the tag ID and type data are obtained. The RFID tag 142A may be an HF tag that can be read with HF band radio waves, similar to the RFID tag 140 for identifying persons requiring care, or it may be a UHF tag that can be read with UHF (Ultra High Frequency) band radio waves. 【0100】 <Storage of weight difference data, tag ID, and care recipient ID in the management database> When worker U performs the task of changing the disposable diaper 142, he operates the tablet terminal 143 to activate the reader device 144 and the weight sensor 145, reads the tag ID of the RFID tag 142A on the used disposable diaper 142, and places the used disposable diaper 142 into the collection container 146. At this time, the weight sensor 145 measures the weight of the collection container 146 containing the used disposable diaper 142 and outputs data (weight data) representing the increase in weight due to the insertion of the used disposable diaper 142 to the tablet terminal 143. When the tablet terminal 143 acquires the tag ID and weight data, it associates the acquired tag ID and weight data and transmits it to the management device 2. 【0101】 Here, as an example, when one used diaper 142 is placed in the collection container 146, the weight sensor 145 measures the weight of the collection container 146. That is, the weight sensor 145 measures the weight of each diaper 142 individually. Therefore, the weight data represents, as an example, the increase in the weight of the collection container 146 due to the placement of one used diaper 142. 【0102】 The processing unit 27 of the management device 2 calculates the weight difference of the disposable diaper 142 before and after use by subtracting the weight of the disposable diaper 142 before use from the weight data among the acquired tag ID and weight data. The processing unit 27 associates the data representing the weight difference (weight difference data), the tag ID, and the care recipient ID and stores them in the management DB. Here, the weight data represents the increase in the weight of the collection container 146 due to one used disposable diaper 142 being placed in the collection container 146, so the weight difference data represents the weight of the excrement absorbed by one used disposable diaper 142. 【0103】 Here, as an example, we will describe a configuration in which the weight sensor 145 measures the weight of the collection container 146 when one used disposable diaper 142 is placed in the collection container 146. However, the weight sensor 145 may also measure the weight of the collection container 146 when multiple used disposable diapers 142 for one care recipient 114 are placed in the collection container 146. In other words, the weight sensor 145 may measure the weight of multiple disposable diapers 142 together. 【0104】 In this case, the weight data represents the increase in the weight of the collection container 146 due to the storage of multiple used diapers 142 in the collection container 146, and the weight difference data represents the weight of excrement absorbed by the multiple used diapers 142. In this case, the processing unit 27 may, for example, extract the absorption amount of the diapers 142 based on the average value (average weight of excrement) obtained by dividing the weight difference data by the number of used diapers 142. 【0105】 Furthermore, this description will focus on a configuration in which the cart 141 has a tablet terminal 143, and the tablet terminal 143 activates the reader device 144 and weight sensor 145 to acquire tag IDs and weight data, associates the acquired tag IDs and weight data, and transmits them to the management device 2. However, the processing performed by the tablet terminal 143 may also be performed by the mobile terminal 3. In this case, the cart 141 does not need to have a tablet terminal 143. 【0106】 Alternatively, the tablet terminal 143 may perform all the processes that the mobile terminal 3 described above would normally perform. In this case, worker U does not need to carry the mobile terminal 3 and can perform the same processes using the tablet terminal 143 on the cart 141. In this case, the tablet terminal 143B is just one example of a terminal device. 【0107】 <Management DB> Figure 6 shows an example of the data structure of the management database stored in the memory of the management device 2. In Figure 6, weight difference data is added in addition to the data of the management database shown in Figure 2A. 【0108】 As described above, when a disposable diaper 142 is changed, and the tag ID and weight data are associated with it and transmitted to the management device 2, the processing unit 27 adds the weight data to the received tag ID data (data associated with caregiver ID, tag ID, and change date and time) in the management DB and associates them. As a result, as shown in Figure 6, data is obtained in the management DB that associates caregiver ID, tag ID, change date and time, and weight difference data. 【0109】 <Functional blocks of Management System 1 (Figure 7A)> Figure 7A is a functional block diagram of the management system 1 according to this embodiment. Figure 7A shows the functional block related to the generation of diaper usage history, which is included in the management device 2 and mobile terminal 3 of the management system 1. The management device 2 and mobile terminal 3 of the management system 1 have the functional blocks shown in Figure 7A for the process of generating diaper usage history. 【0110】 The management device 2 includes a care recipient determination unit 24, a work instruction information creation unit 25, and a disposable diaper usage history database 26. 【0111】 The care recipient determination unit 24 determines who the care recipient 114 is that worker U, who is carrying the mobile terminal 3, is approaching, based on the care recipient ID information received from the mobile terminal 3. The care recipient determination unit 24 also receives the terminal ID from the mobile terminal 3 and can determine from the terminal ID which of the multiple terminals under management the mobile terminal 3 that sent the care recipient ID belongs to. 【0112】 The work instruction information creation unit 25 creates work instruction information tailored to the specific care recipient 114 determined by the care recipient determination unit 24. The work instruction information includes information such as the diaper usage input screens 431 and 531 that are displayed on the display unit of the mobile terminal 3 according to the specific care recipient 114, as illustrated in Figures 3 and 4. The work instruction information creation unit 25 also identifies the mobile terminal 3 that sent the care recipient ID based on the terminal ID received by the care recipient determination unit 24, and sends the created work instruction information to the identified mobile terminal 3. 【0113】 The diaper usage history database 26 records information regarding the diaper usage history for each of the multiple care recipients 114 based on update information received from the mobile terminal 3. The information regarding the diaper usage history is a set of data linked together various pieces of information, such as the individual ID (care recipient ID) assigned to each care recipient 114, personal information such as the name of the care recipient 114, the bed number of the bed 113 assigned to the care recipient 114, the type and number of diapers used for the care recipient 114 from among multiple types of diapers, the identification information (worker ID) of the worker U who performed the diaper change for the care recipient 114, and the time the diaper change was performed. The various pieces of information included in such a set of data are transmitted to the management device 2 from multiple mobile terminals 3 carried by multiple workers U, and are aggregated and stored in the diaper usage history database 26 of the management device 2. 【0114】 Furthermore, the management system 1 can also be configured to include an administrator terminal 4 that can be used by the system administrator, and to access the diaper usage history database 26 of the management device 2 via the administrator terminal 4 to extract and use necessary information from the diaper usage history information. 【0115】 For example, the administrator terminal 4 can perform a diaper settlement task for a specific care recipient 114 based on information regarding the usage status of diapers for each care recipient 114. In the settlement task, for example, the administrator terminal 4 refers to the diaper usage history database 26 of the management device 2 to extract information on the type and number of diapers used by the specific care recipient 114 within a predetermined period. Then, using this extracted information, the administrator terminal 4 calculates, for example, the cumulative amount of diapers used and the cost during the predetermined period, and bills the care recipient 114 and their related parties. With this configuration, information on the amount of diapers used by multiple care recipients 114 is automatically accumulated, and information on diaper usage history can be easily obtained using this accumulated information, so the settlement task can be performed accurately and simply. 【0116】 Furthermore, for example, the administrator terminal 4 can also perform the task of managing the inventory of disposable diapers at a facility where care recipients 114 reside (for example, the care facility 100 shown in Figure 1). In the inventory management task, for example, the administrator terminal 4 refers to the disposable diaper usage history database 26 of the management device 2 to extract information on the type and number of disposable diapers used for each care recipient 114 within a predetermined period. Using this extracted information, the administrator terminal 4 calculates, for example, the total number and type of disposable diapers used for all care recipients 114 during the predetermined period. Then, based on the remaining quantity of each type of disposable diaper stored at the care facility 100, the administrator terminal 4 orders disposable diapers of the type that is running low from manufacturers or retailers. Alternatively, the information recorded in the disposable diaper usage history database 26 of the management device 2 may be used in an SPD (Supply Processing and Distribution) system pre-installed in the workspace of the care facility 100 or the like. With this configuration, information on the total amount of disposable diapers used throughout the 100 nursing care facilities is automatically accumulated, and this accumulated information can be used to easily retrieve information on the amount of disposable diapers used, enabling accurate and simple inventory management tasks. 【0117】 Furthermore, the settlement and inventory management tasks described above may also be performed by the management device 2 itself using the disposable diaper usage history database 26 within the machine. 【0118】 As described above, in the management system 1 of this embodiment, the history of disposable diaper use can be centrally managed in the disposable diaper use history database 26 of the management device 2. Therefore, in various facilities such as nursing care facilities 100 where the management system 1 is introduced, it is possible to visualize the amount of consumption of items such as disposable diapers. By using the information on the history of item use in the settlement task and inventory management task mentioned above, it becomes possible to grasp the appropriate inventory level of items, which helps in optimizing cash flow, optimizing storage locations and maintenance costs for items, maintaining the quality of items and products, etc. 【0119】 The mobile terminal 3 includes a tag information acquisition unit 305, a disposable diaper usage input screen creation unit 306, an operation input reception unit 307, and a usage history update unit 308. The disposable diaper usage input screen creation unit 306, the operation input reception unit 307, and the usage history update unit 308 represent the functions of the program executed by the mobile terminal 3 as functional blocks. 【0120】 The tag information acquisition unit 305 acquires the care recipient ID information from the care recipient identification RFID tag 140. The tag information acquisition unit 305 transmits the acquired care recipient ID information and the terminal ID information of its own device to the care recipient determination unit 24 of the management device 2. 【0121】 The disposable diaper usage input screen creation unit 306 controls the creation and switching of work information screens (disposable diaper usage input screens 431, 531) to be displayed on the machine's display unit according to the care recipient 114, based on the work instruction information received from the work instruction information creation unit 25 of the management device 2. 【0122】 The operation input reception unit 307 receives input operations from worker U on the diaper usage input screens 431 and 531, and controls the updating of the work information screen in accordance with the input operations. In this embodiment, input operations include information such as the type and number of diapers used in the diaper changing operation. The operation input reception unit 307 outputs the input operation information to the usage history update unit 308. 【0123】 The usage history update unit 308 creates updated information on the diaper usage history based on information such as the worker U's input operations received from the operation input reception unit 307, and transmits it to the management device 2. The updated information includes information such as the cumulative amount of diapers used that has increased due to the diaper changing work. Based on the updated information transmitted from the usage history update unit 308, the information in the diaper usage history database 26 of the management device 2 is updated to the latest information. 【0124】 <Functional blocks of Management System 1 (Figure 7B)> Figure 7B shows an example of the configuration for acquiring weight difference data within the management system 1. The management device 2 has a processing unit 27 and a management DB 28. The processing unit 27 shows the functions of the program executed by the management device 2 as functional blocks, and the management DB 28 functionally shows a part of the database stored in the memory of the management device 2. 【0125】 Figure 7B also shows, in addition to the management device 2, the tag ID registration unit 309 of the mobile terminal 3, the RFID tag 140 for identifying care recipients, the reader device 115, the tablet terminal 143, the reader device 144, and the weight sensor 145. 【0126】 In addition to the tag information acquisition unit 305, diaper usage input screen creation unit 306, operation input reception unit 307, and usage history update unit 308 shown in Figure 7A, the mobile terminal 3 also has a tag ID registration unit 309 as a functional block related to the acquisition of weight difference data. The tag ID registration unit 309 represents the function of the program executed by the mobile terminal 3 as a functional block. 【0127】 The Tag ID Registration Unit 309 reads the care recipient ID from the care recipient identification RFID tag 140 and activates the reader device 115 when the specific task based on the work instruction information received by the mobile terminal 3 from the management device 2 is the task of changing the disposable diaper 142. The Tag ID Registration Unit 309 obtains the tag ID of the RFID tag 142A of the disposable diaper 142 from the reader device 115. The Tag ID Registration Unit 309 associates the care recipient ID with the tag ID and transmits it to the management device 2. 【0128】 The processing unit 27 of the management device 2 obtains the tag ID and care recipient ID from the mobile terminal 3 and stores them in the management DB 28. Since the tag ID and care recipient ID transmitted from the mobile terminal 3 are associated with the date and time when the disposable diaper 142 was changed, the tag ID, care recipient ID, and the date and time when the disposable diaper 142 was changed are registered together, as shown in Figure 2A. 【0129】 When the disposable diaper 142 of the person requiring care 114 is changed, the tablet terminal 143 obtains the tag ID from the reader device 144 and weight data from the weight sensor 145. The tablet terminal 143 associates the weight data with the tag ID and transmits it to the management device 2. 【0130】 The processing unit 27 of the management device 2 obtains weight data and tag ID from the tablet terminal 143, subtracts the weight of the disposable diaper 142 before use from the weight data, and calculates the weight difference of the disposable diaper 142 before and after use. This gives weight difference data. The weight difference data represents the weight of the excrement excreted by the care recipient 114 while using the disposable diaper 142. The weight of the disposable diaper 142 before use can be obtained from the disposable diaper DB (see Figure 2B) based on the type data of the disposable diaper 142 read by the reader device 144 along with the tag ID. 【0131】 For example, the weight of the disposable diaper 142 before use may be measured by worker U using a weight sensor 145 before changing the disposable diaper 142. In this case, the tablet terminal 143 should transmit the weight data of the disposable diaper 142 before use, the weight data of the disposable diaper 142 after use, the tag ID, and the management device 2. 【0132】 Furthermore, the processing unit 27 retrieves the corresponding data from the management DB 28 based on the acquired tag ID, and stores the care recipient ID, tag ID, exchange date and time, and weight difference data in association with each other. As a result, the management DB 28 stores the care recipient ID, tag ID, exchange date and time, and weight difference data in association with each other, as shown in Figure 6. 【0133】 Furthermore, the processing unit 27 extracts the type of disposable diaper 142 with the optimal absorbency from among several types of disposable diapers 142 for the care recipient 114 identified by the care recipient ID, based on the weight difference data stored in the management DB 28. The management device 2 notifies the mobile terminal 3 of the type of disposable diaper 142 extracted by the processing unit 27 when it is time to change the disposable diaper 142 for the next time. As a result, when it is time to change the disposable diaper 142 for the next time it is time to change the disposable diaper 142, the type of disposable diaper 142 that is optimal for the care recipient 114 identified by the care recipient ID will be displayed on the mobile terminal 3's screen. 【0134】 Here, the optimal type of disposable diaper 142 can be selected, for example, as the type with the smallest absorbency capable of absorbing the excrement with the maximum weight difference data obtained over a predetermined period in the past (e.g., one week). Furthermore, the predetermined period is not limited to one week; it can be determined by the number of days, such as two or three days, or by a longer period of more than one week (e.g., one month). 【0135】 For example, if there are three types of products (disposable diapers 142) with absorption capacities of 2, 5, and 8 urinations, and the maximum value of the weight difference data obtained over a predetermined period in the past (for example, one week) corresponds to the weight of 4 urinations, then the processing unit 27 should extract the product with the 5-urination absorption capacity (disposable diaper 142) as the optimal type of disposable diaper 142. 【0136】 To extract the optimal type of disposable diaper 142 based on weight difference data, for example, data relating multiple absorption capacities of disposable diapers 142 and the weight of excrement that can be absorbed by each absorption capacity can be stored in the memory of the management device 2. For example, if there are three types of products (disposable diapers 142) with absorption capacities of 2, 5, and 8 urinations, data representing the weight of excrement corresponding to the absorption capacities of 2, 5, and 8 urinations can be stored in the memory of the management device 2. 【0137】 Alternatively, instead of using the maximum value of weight difference data obtained over a predetermined period in the past, the minimum absorption capacity of a disposable diaper 142 capable of absorbing excrement may be extracted by adding a predetermined margin (for example, 20% of the average value) to the average value of the weight difference data obtained over a predetermined period in the past. 【0138】 <Operation in Management System 1> Figure 8 is a sequence diagram of the operation in the management system 1 according to this embodiment. Figure 8 shows the process related to the generation of diaper usage history, which is one of the processes executed by the management device 2 and mobile terminal 3 of the management system 1. 【0139】 In step S301, the management device 2 performs the registration process for the care recipient 114. The management device 2 registers the information of the care recipient 114 in the disposable diaper usage history database 26 at any time, such as when a new care recipient 114 enters the care facility. 【0140】 In step S302, any worker U approaches a specific care recipient 114 in order to perform a diaper change. 【0141】 In step S303, when worker U enters a specific work area including the bed 113 where the person requiring care 114 is sleeping, the tag information acquisition unit 305 of the mobile terminal 3 carried by worker U reads the care recipient ID of the care recipient 114 who is the target of the diaper changing work. As illustrated in Figure 1, RFID tags 140 for identifying care recipients are installed on the bed 113 where the care recipient 114 is sleeping and around the bed 113, and the care recipient ID, which is the identification information assigned to the care recipient 114, is recorded on these RFID tags 140. 【0142】 The information reading range from the RFID tag 140 for identifying care recipients by the mobile terminal 3 can be arbitrarily set according to the living environment of the care recipient 114 being worked on. For example, in an environment where multiple beds 113 are arranged in one room 110, setting the information reading range to an area within several tens of centimeters around a specific bed 113 clearly distinguishes the work area for each of the multiple care recipients 114, thus preventing the mobile terminal 3 from mistakenly reading information from a tag other than the relevant RFID tag 140 for identifying care recipients. On the other hand, in a private room environment where only one bed 113 is arranged in one room 110, setting the information reading range to an area of ​​several meters around the bed 113 is unlikely to result in misrecognition of tag information, so the information reading range can be set wider. This allows for faster processing from step S303 onward. 【0143】 In step S304, the tag information acquisition unit 305 of the mobile terminal 3 transmits the care recipient ID read in step S303 and the terminal ID information of the mobile terminal 2 to the management device 2. 【0144】 In step S305, the care recipient determination unit 24 of the management device 2 uses the care recipient ID received from the mobile terminal 3 in step S304 to determine the personal information of the care recipient 114 that worker U is currently approaching, such as the name. The care recipient determination unit 24, for example, refers to the disposable diaper usage history database 26 to determine the care recipient 114 based on the care recipient ID. 【0145】 In step S306, the work instruction information creation unit 25 of the management device 2 extracts information on the diaper usage history of the care recipient 114 who was identified in step S305 as the target of the diaper changing work. The work instruction information creation unit 25 refers to the diaper usage history database 26 and extracts information on the diaper usage history of the care recipient 114 based on the care recipient ID. 【0146】 In step S307, the work instruction information creation unit 25 of the management device 2 creates work instruction information using the diaper usage history information extracted in step S306. 【0147】 In step S308, the work instruction information creation unit 25 of the management device 2 transmits the work instruction information created in step S307 to the mobile terminal 3. The work instruction information creation unit 25 transmits the work instruction information to the mobile terminal 3 that has the terminal ID received in step S304. 【0148】 In step S309, a diaper usage input screen is created for the mobile terminal 3 and displayed on the display unit of the mobile terminal 3. The diaper usage input screen is created using information contained in the work instruction information received from the management device 2 in step S308, and includes, for example, the button-display type diaper usage input screen 431 exemplified in Figure 3, and the list-display type diaper usage input screen 531 exemplified in Figure 4. 【0149】 In step S310, the operation input reception unit 307 of the mobile terminal 3 receives operation input from worker U regarding the number and type of diapers to be used in the current diaper changing operation. Worker U can perform the input operation on the diaper usage input screens 431 and 531 at any time, for example, after the diaper changing operation for the care recipient 114 is completed or before the operation is performed. 【0150】 In step S311, the usage history update unit 308 of the mobile terminal 3 creates updated information in the diaper usage history corresponding to the input operation received in step S310, and transmits it to the management device 2. 【0151】 In step S312, the management device 2 updates the information of the care recipient 114 in the disposable diaper usage history database 26, based on the update information received in step S311. 【0152】 <Linking Tag ID and Care Recipient ID> Figure 9A is a task diagram showing an example of the process of linking a tag ID with a care recipient ID. Figure 9A shows an example of the process executed by the tag ID registration unit 309 of the mobile terminal 3 and the processing unit 27 of the management device 2. 【0153】 The tag ID registration unit 309 reads the care recipient ID from the care recipient identification RFID tag 140 when the specific task based on the work instruction information received by the mobile terminal 3 from the management device 2 is the task of changing the disposable diaper 142 (step S101). 【0154】 The tag ID registration unit 309 activates the reader device 115 and obtains the tag ID (step S102). 【0155】 The tag ID registration unit 309 associates the care recipient ID with the tag ID and transmits it to the management device 2 (step S103). 【0156】 The processing unit 27 receives the tag ID and care recipient ID from the mobile terminal 3 (step S104). 【0157】 The processing unit 27 associates the tag ID with the care recipient ID and stores it in the management DB 28 (step S105). As a result, as shown in Figure 2A, the tag ID, care recipient ID, and the date and time when the disposable diaper 142 was changed are registered in association with each other. 【0158】 <Processing for obtaining the weight of excrement> Figure 9B is a task diagram showing an example of the process for obtaining the weight of excrement. Figure 9B shows an example of the process performed by the tablet terminal 143 and the processing unit 27 of the management device 2. 【0159】 When the disposable diaper 142 of the person requiring care 114 is changed, the tablet terminal 143 obtains a tag ID from the reader device 144 (step S111). 【0160】 The tablet device 143 acquires weight data from the weight sensor 145 (step S112). 【0161】 The tablet terminal 143 associates the weight data with the tag ID and transmits it to the management device 2 (step S113). 【0162】 The processing unit 27 receives weight data and tag ID from the tablet terminal 143 (step S114). 【0163】 The processing unit 27 subtracts the weight of the disposable diaper 142 before use from the weight data to calculate the weight difference of the disposable diaper 142 before and after use (step S115). The weight of the disposable diaper 142 before use can be obtained by identifying the type of disposable diaper 142 using the tag ID and retrieving the weight of the identified disposable diaper 142 before use from the diaper database. The weight difference data represents the weight of the excrement excreted by the care recipient 114 while using the disposable diaper 142. 【0164】 The processing unit 27 retrieves the data corresponding to the acquired tag ID from the management DB 28 and stores the care recipient ID, tag ID, exchange date and time, and weight difference data in association (step S116). As a result, the management DB 28 stores the care recipient ID, tag ID, exchange date and time, and weight difference data in association, as shown in Figure 6. 【0165】 The processing unit 27 extracts the optimal type of disposable diaper 142 based on weight difference data obtained over a predetermined period in the past (e.g., one week) (step S117). The type should be selected as the one with the smallest absorption capacity capable of absorbing the excrement with the maximum weight difference data obtained over a predetermined period in the past (e.g., one week). 【0166】 The processing unit 27 notifies the tablet terminal 143 of the optimal type of disposable diaper (step S118). This allows the mobile device 3's display to show the most suitable type of disposable diaper 142 for the care recipient 114, who is identified by their care recipient ID. 【0167】 <Hardware configuration of management device 2, mobile terminal 3, and tablet terminal 143> Figure 10 is a hardware configuration diagram of the management device 2, mobile terminal 3, and tablet terminal 143. As shown in Figure 10, the management device 2, mobile terminal 3, and tablet terminal 143 can be physically configured as a computer system including a CPU (Central Processing Unit) 101, main memory such as RAM (Random Access Memory) 102 and ROM (Read Only Memory) 103, input devices such as a keyboard and mouse 104, output devices such as a display 105, a data transmission and reception device such as a network card, a communication module 106, and an auxiliary storage device 107. The functions of the management device 2 and mobile terminal 3 are realized by loading predetermined computer software onto the hardware such as the CPU 101 and RAM 102, thereby operating the communication module 106, input devices 104 and output devices 105 under the control of the CPU 101, and reading and writing data to the RAM 102 and auxiliary storage device 107. 【0168】 <Effects> A management system 1 according to one aspect of the embodiment of the present disclosure includes an RFID tag 142A attached to a disposable diaper 142, a weight sensor 145 that measures the weight of the disposable diaper 142 to which the RFID tag 142A is attached, and a processing unit 27 that calculates the weight difference of the disposable diaper 142 before and after use based on the weight of the disposable diaper 142 measured by the weight sensor 145 after use, and associates the weight difference with the ID information (tag ID) of the RFID tag 142A and the personal ID (care recipient ID) of the user wearing the disposable diaper 142. 【0169】 In this embodiment, the processing unit 27 automatically calculates the weight difference of the disposable diaper 142 before and after use, and the weight difference is automatically associated with the ID information (tag ID) and the personal ID (care recipient ID). As a result, data that allows for the accurate determination of the amount of excretion of the person identified by the personal ID (care recipient ID) is automatically obtained. Therefore, a management system 1 that can automatically and accurately detect the amount of excretion can be provided. 【0170】 Furthermore, this configuration makes it possible to determine which disposable diaper 142 was used by a person identified by their personal ID (care recipient ID), thus providing data to determine whether the disposable diaper 142 has an appropriate absorbency for the amount of excretion. 【0171】 In a management system 1 relating to another aspect of the embodiments of this disclosure, the weight difference may be the weight of the excrement excreted by the user of the disposable diaper 142. 【0172】 According to this configuration, data that allows for the accurate determination of the weight of excrement from a person identified by their personal ID (care recipient ID) can be automatically obtained. 【0173】 In another aspect of the embodiments of this disclosure, the management system 1 further includes a cart 141 for collecting used diapers 142, and a weight sensor 145 may be provided on the cart 141. 【0174】 According to this embodiment, when collecting used disposable diapers 142 with a cart 141, the weight of the used disposable diapers 142 can be measured by a weight sensor 145 provided on the cart 141. This reduces the burden of measuring the weight of used disposable diapers 142 and allows for efficient measurement of the weight of used disposable diapers 142. 【0175】 In a management system 1 relating to another aspect of the embodiments of this disclosure, the cart 141 may have a collection container 146 for collecting used disposable diapers 142, and the weight sensor 145 may measure the weight of the disposable diapers 142 by measuring the weight of the collection container 146. 【0176】 According to this embodiment, when collecting used disposable diapers 142 with the cart 141, the weight of the used disposable diapers 142 can be measured simply by placing the used disposable diapers 142 into the collection container 146 of the cart 141. This further reduces the burden of measuring the weight of used disposable diapers 142 and makes it possible to measure the weight of used disposable diapers 142 more efficiently. 【0177】 In a management system 1 relating to another aspect of the embodiments of this disclosure, the collection container 146 may be mounted on top of the weight sensor 145. 【0178】 In this embodiment, the collection container 146 is mounted on top of the weight sensor 145, making it possible to easily and reliably measure the weight of the used disposable diaper 142. 【0179】 In a management system 1 relating to another aspect of the embodiments of this disclosure, the weight sensor 145 may measure the weight of each diaper 142 individually. 【0180】 According to this embodiment, since the weight of each used diaper 142 can be measured individually, the amount of excrement excreted while using one diaper 142 can be accurately measured. 【0181】 In a management system 1 relating to another aspect of the embodiments of this disclosure, the weight sensor 145 may measure the weight of multiple disposable diapers 142 together. 【0182】 According to this embodiment, the amount of excrement excreted in multiple disposable diapers 142 can be measured accurately and collectively. 【0183】 In another aspect of the embodiments of this disclosure, the management system 1 is provided in the room of a user wearing a disposable diaper 142 and includes a reader device capable of reading the ID information (tag ID) of the RFID tag 142A. The processing unit 27 may further include associating the ID information (tag ID) of the RFID tag 142A read by the reader device before use of the disposable diaper 142 with the personal ID (care recipient ID) of the user wearing the disposable diaper 142, and calculating the weight difference of the disposable diaper 142 before and after use based on the weight of the disposable diaper 142 measured by the weight sensor 145 after use of the disposable diaper 142, and associating the weight difference with the ID information (tag ID) of the RFID tag 142A and the personal ID (care recipient ID) of the user wearing the disposable diaper 142. 【0184】 According to this embodiment, the ID information (tag ID) of the RFID tag 142A attached to the disposable diaper 142 worn by the user can be read by a reader device installed in the room of the user wearing the disposable diaper 142, and the ID information (tag ID) of the disposable diaper 142 worn by the user, the weight difference, and the personal ID (care recipient ID) of the user wearing the disposable diaper 142 can be accurately and reliably associated. 【0185】 In another aspect of the embodiments of this disclosure, the management system 1 further includes a first reader device (reader device 115) provided in the room 110 of the user wearing the disposable diaper 142 and capable of reading the ID information (tag ID) of the RFID tag 142A, and a second reader device (reader device 144) provided in the cart 141 and capable of reading the ID information (tag ID) of the RFID tag 142A. The processing unit 27 stores in table data an association between the ID information (tag ID) of the RFID tag 142A read by the first reader device (reader device 115) before the use of the disposable diaper 142 and the personal ID (care recipient ID) of the user wearing the disposable diaper 142. After the use of the disposable diaper 142, the weight difference may be associated with the corresponding ID information (tag ID) in the table data. 【0186】 According to this embodiment, the ID information (tag ID) of the RFID tag 142A attached to the disposable diaper 142 worn by the user can be read by a first reader device (reader device 115) installed in the room of the user wearing the disposable diaper 142, and the ID information (tag ID) of the disposable diaper 142 worn by the user, the weight difference, and the personal ID (care recipient ID) of the user wearing the disposable diaper 142 can be accurately and reliably associated. Furthermore, when collecting the used disposable diapers 142 with the cart 141, the ID information (tag ID) of the RFID attached to the used disposable diaper 142 can be easily and reliably read using a second reader device (reader device 144) installed on the cart 141. 【0187】 In another aspect of the embodiments of this disclosure, the management system 1 further includes a reader device (reader device 144) provided on the cart 141 that can read the ID information (tag ID) of the RFID tag 142A, and the processing unit 27 stores in table data an association between the ID information (tag ID) of the RFID tag 142A read by the reader device before use of the disposable diaper 142 and the personal ID (care recipient ID) of the user wearing the disposable diaper 142, and after use of the disposable diaper 142, the ID information (tag ID) of the RFID tag 142A read by the reader device (reader device 144) and the corresponding ID information (tag ID) in the table data, and may associate the weight difference. 【0188】 According to this embodiment, the ID information (tag ID) of the RFID tag 142A attached to the disposable diaper 142 worn by the user can be read in the user's room using a reader device (reader device 144) provided on the cart 141, and the ID information (tag ID) of the disposable diaper 142 worn by the user, the weight difference, and the personal ID (care recipient ID) of the user wearing the disposable diaper 142 can be accurately and reliably associated. Furthermore, when collecting the used disposable diapers 142 with the cart 141, the ID information (tag ID) of the RFID attached to the used disposable diaper 142 can be easily and reliably read using a reader device (reader device 144) provided on the cart 141. 【0189】 In another aspect of the embodiments of this disclosure, the management system 1 further includes a terminal device (mobile terminal 3 or tablet terminal 143) that transmits ID information read by a reader device (reader device 115 or 144) before use of the disposable diaper 142 in association with a personal ID to a processing unit, and the processing unit 27 may store in table data the ID information of the RFID tag read by the reader device (reader device 115 or 144) before use of the disposable diaper 142 received from the terminal device (mobile terminal 3 or tablet terminal 143) in association with the personal ID of the user wearing the disposable diaper 142. 【0190】 According to this embodiment, by further including a terminal device (mobile terminal 3 or tablet terminal 143) that transmits ID information read by a reader device (reader device 115 or 144) installed in the living room or cart to a processing unit in association with the personal ID, the ID information of the RFID tag attached to the disposable diaper 142 used by the user can be reliably associated with the personal ID at the place where the disposable diaper 142 is changed, and the weight of the disposable diaper 142 currently worn by the user can be easily managed using the ID information of the RFID tag. 【0191】 In another aspect of the embodiments of this disclosure, the management system 1 further includes a terminal device (tablet terminal 143 or mobile terminal 3) that associates the weight of the disposable diaper 142 measured by a weight sensor 145 after use with the ID information of the RFID tag 142A read after use of the disposable diaper 142 and transmits this information to a processing unit 27. The processing unit 27 may calculate the weight difference of the disposable diaper 142 before and after use based on the weight of the disposable diaper 142 received from the terminal device (tablet terminal 143 or mobile terminal 3), and associate the weight difference with the ID information received from the terminal device (tablet terminal 143 or mobile terminal 3) and the personal ID. 【0192】 According to this embodiment, by associating the weight of the used diaper 142 with ID information and transmitting it to the processing unit 27 from the terminal device (tablet terminal 143 or mobile terminal 3), the processing unit 27 can easily manage the weight of the used diaper 142, the ID information, and the personal ID. 【0193】 In a management system 1 relating to another aspect of the embodiments of this disclosure, the disposable diapers 142 may have multiple types with different absorption capacities, and the processing unit 27 may extract the type with the optimal absorption capacity from among the multiple types for a personal ID (care recipient ID) associated with the weight difference, based on the weight difference. 【0194】 According to this embodiment, for users identified by their personal ID (care recipient ID), it is possible to select the optimal absorbency of the disposable diaper 142 based on weight differences obtained in the past. This reduces the economic burden by saving on the cost of disposable diapers 142 and enables the effective use of the absorbent material of the disposable diaper 142 by selecting a disposable diaper 142 with an appropriate absorbency. 【0195】 In this embodiment, the management device 2 is shown as transmitting work instruction information to the mobile terminal 3 in response to the receipt of the care recipient ID. However, it is also possible to have a configuration in which each mobile terminal 3 has its own database, and the work instruction information is extracted within the mobile terminal 3 based on the care recipient ID. 【0196】 Furthermore, while the embodiment illustrates a configuration in which an RFID tag is read wirelessly by the mobile terminal 3 when entering a work area such as the vicinity of the person requiring care 114, any identification mark that can obtain information related to the person requiring care ID is acceptable, and elements other than RFID tags may be used. Examples of such elements include a configuration in which a QR code (registered trademark) is installed as an identification mark in the work area and the QR code is read by the camera of the mobile terminal 3, or a configuration in which a device similar to a dedicated terminal device used for touch payment (contactless payment), etc., is installed as an identification mark in the work area and identification information is obtained from the device by bringing the mobile terminal 3 into contact with the device. 【0197】 Embodiments have been described above with reference to specific examples. However, this disclosure is not limited to these specific examples. Modifications made to these specific examples by those skilled in the art are also included within the scope of this disclosure, as long as they retain the features of this disclosure. The elements, their arrangement, conditions, shapes, etc., of each of the aforementioned specific examples are not limited to those illustrated and can be modified as appropriate. The elements of each of the aforementioned specific examples can be combined in different ways as appropriate, as long as no technical inconsistencies arise. [Explanation of symbols] 【0198】 1 Management System 2 Management device 27 Processing Unit 3. Mobile devices (an example of a terminal device) 309 Tag ID Registration Section 100 nursing care facilities 110 Room 114 People requiring long-term care 115 Reader device (an example of a first reader device) 120 Storage (work area) 140 RFID tags 140 RFID tags for identifying people requiring care 140 tags 141 Cart 142 Disposable diapers (an example of a diaper) 142A RFID tag 143 Tablet device (an example of a terminal device) 144. Reader device (an example of a second reader device) 145 Weight sensor (an example of a weight measuring unit) 146 Collection containers

Claims

[Claim 1] RFID tags that can be attached to diapers, A weight measuring unit that measures the weight of the diaper to which the RFID tag is attached, A processing unit calculates the weight difference of the diaper before and after use based on the weight of the diaper measured by the weight measuring unit after use of the diaper, and associates the weight difference with the ID information of the RFID tag and the personal ID of the user wearing the diaper. A management system that includes this. [Claim 2] The management system according to claim 1, wherein the weight difference is the weight of the excrement excreted by the user of the diaper. [Claim 3] The system further includes a cart for collecting the used diapers, The management system according to claim 1, wherein the weight measuring unit is provided in the cart. [Claim 4] The cart has a collection container for collecting the used diapers, The management system according to claim 3, wherein the weight measuring unit measures the weight of the diaper by measuring the weight of the collection container. [Claim 5] The management system according to claim 4, wherein the collection container is mounted on the weight measuring unit. [Claim 6] The management system according to claim 1, wherein the weight measuring unit individually measures the weight of each diaper. [Claim 7] The management system according to claim 1, wherein the weight measuring unit measures the weight of multiple diapers together. [Claim 8] The system further includes a reader device installed in the living room of the user wearing the aforementioned diaper, which is capable of reading the ID information of the RFID tag. The aforementioned processing unit, The ID information of the RFID tag read by the reader device before the diaper is used is associated with the personal ID of the user wearing the diaper. The management system according to claim 1, wherein the system calculates the weight difference of the diaper before and after use based on the weight of the diaper measured by the weight measuring unit after the use of the diaper, and associates the weight difference with the ID information of the RFID tag and the personal ID of the user wearing the diaper. [Claim 9] A first reader device is provided in the room of the user wearing the aforementioned diaper, and is capable of reading the ID information of the RFID tag. A second reader device is provided on the cart and is capable of reading the ID information of the RFID tag. It further includes, The aforementioned processing unit, The ID information of the RFID tag read by the first reader device before the diaper is used is associated with the personal ID of the user wearing the diaper and stored in a table data. The management system according to claim 3, wherein the weight difference is associated with the ID information of the RFID tag read by the second reader device after the use of the diaper, and with the corresponding ID information in the table data. [Claim 10] The cart further includes a reader device capable of reading the ID information of the RFID tag, The aforementioned processing unit, The ID information of the RFID tag read by the reader device before the diaper is used is associated with the personal ID of the user wearing the diaper and stored in a table data. The management system according to claim 3, wherein the weight difference is associated with the ID information of the RFID tag read by the reader device after use of the diaper, and with the corresponding ID information in the table data. [Claim 11] The device further includes a terminal device that transmits the ID information read before use of the diaper to the processing unit, associating it with the personal ID. The management system according to any one of claims 8 to 10, wherein the processing unit associates the ID information of the RFID tag, which was read by the reader device before the diaper was used and received from the terminal device, with the personal ID of the user wearing the diaper and stores them in a table data. [Claim 12] The system further includes a terminal device that associates the weight of the diaper measured by the weight measuring unit after the use of the diaper with the ID information of the RFID tag read after the use of the diaper, and transmits this information to the processing unit. The management system according to claim 1, wherein the processing unit calculates the weight difference of the diaper before and after use based on the weight of the diaper received from the terminal device, and associates the weight difference with the ID information received from the terminal device and the personal ID. [Claim 13] The aforementioned diapers come in multiple types with different absorption capacities. The management system according to any one of claims 8 to 10, wherein the processing unit extracts the optimal type of absorption amount from among the plurality of types for the personal ID associated with the weight difference based on the weight difference.

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