Lost item detection device

By integrating quality sensors on the clothes hanger and connecting them with terminal equipment, detection and notification of valuable items in clothes is realized, and the problem of difficulty in detecting items left in clothes in the prior art is solved, and the discovery efficiency is improved.

JP2025037329AActive Publication Date: 2025-03-18山田 光一
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Patent Information

Application Number
JP2023144191
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-06
Publication Date
2025-03-18
Estimated Expiration
2043-09-06

AI Technical Summary

Technical Problem

The prior art is difficult to effectively detect and notify users of valuable items left in clothing, especially those placed in their pockets, and the specific location of the lost items cannot be accurately located.

Method used

A clothes hanger with quality detection function is designed to detect the weight of the clothes through a quality sensor and connect it to the terminal device through a wireless network. The terminal device is responsible for storing and comparing the registered clothes with the weight detected in real time. If a weight abnormality is detected, the user will be notified.

Benefits of technology

It realizes timely detection and notification of valuables left in clothing, reduces the time and trouble for users to find lost items at home, and improves the efficiency of discovering lost items.

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Abstract

To provide a lost item detection device capable of detecting lost items left inside clothes hanging on a clothes hanger and notifying a user.SOLUTION: A lost item detection device including a clothes hanger and a terminal device, in which the clothes hanger includes a weight registration unit that detects the weight of the clothes and transmits the weight for registration of the clothes to the terminal device and a mass detection unit that detects the weight of the clothes when the clothes are hung and transmits it to the terminal device, and the terminal device includes a mass information acquisition unit that acquires and records the weight of the clothes for registration from the clothes hanger, a mass determination unit that acquires the weight of the clothes from the mass detection unit of the clothes hanger and compares it with the weight of the clothes registered in the mass information acquisition unit to determine whether or not there is a lost item, and a notification unit that notifies a user when it is determined that there is a lost item in the mass determination unit.SELECTED DRAWING: Figure 2
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Description

[Technical field]

[0001] The present disclosure relates to a lost item detection device using a clothing hanger. [Background technology]

[0002] In everyday life, when we come inside from outside, we often hang up the jacket we were wearing on a hanger, but sometimes we leave valuables such as our wallet or keys in the jacket and later forget about them and have to search for them frantically.

[0003] Searching for an object without being able to pinpoint its exact location, even though it is in the room, is a waste of time. Therefore, to prevent people from forgetting things, devices have been developed that use wireless communication to detect lost items and notify the user. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2017-004196 [Patent Document 2] Patent Publication No. 2009-237994 Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 discloses a technology in which items that a user should carry with them are registered in advance, and when the user goes out, the technology detects and notifies the user of items left behind by wireless communication based on the user's departure and the ID information of the items remaining in the room.

[0006] Patent Document 2 discloses a technology that uses wireless IC tags to detect whether a driver of a car has left any belongings behind when visiting a customer.

[0007] Patent Document 1 and Patent Document 2 are one method to prevent forgetting, but valuables such as wallets, card holders, and key cases are often placed in jacket pockets, and when they are taken off and lost, the whole house is searched for. Also, when checking the presence of valuables in a room by wireless communication, it is possible to know that the valuables are in the room, but it is not possible to identify their exact location. It is expected that the time wasted in searching for such valuables can be eliminated and a function to detect forgotten items can be provided on hangers, where valuables are often left in and clothes are hung, which will be of great help in preventing forgetting.

[0008] The present disclosure has been made to solve such problems, and aims to provide a lost item detection device that provides a lost item detection function to a hanger, where valuables are often left inside and clothes are hung, and notifies a user that valuables have been left inside the clothes. [Means for solving the problem]

[0009] In order to achieve the above-mentioned objective, the lost item detection device of the present disclosure has a clothes hanger and a terminal device, the clothes hanger is equipped with a mass registration unit that detects the weight of the clothes and transmits the weight for registration to the terminal device, and a mass detection unit that detects the weight of the clothes when the clothes are hung up and transmits it to the terminal device, the terminal device is equipped with a mass information acquisition unit that acquires and stores the weight of the clothes for registration from the clothes hanger, a mass determination unit that acquires the weight of the clothes from the mass detection unit of the clothes hanger and compares it with the weight of the clothes registered in the mass information acquisition unit to determine whether or not an item has been left behind, and a notification unit that notifies the user when the mass determination unit determines that an item has been left behind. Effect of the Invention

[0010] According to the present disclosure, by equipping a clothing hanger with a weight detection function to notify the user, it is possible to notify the user that there is something inside the clothes hung on the hanger, which can help prevent valuables from being left behind. [Brief description of the drawings]

[0011] [Figure 1] 1 is a diagram showing a basic configuration of a lost item detection device 1 according to the present invention. [Diagram 2] FIG. 1 is a diagram showing the basic structure of a clothing hanger 10. [Diagram 3] FIG. 2 is a diagram showing a basic configuration of a sensor unit 200. [Figure 4] 2 is a block diagram showing a functional configuration of a sensor unit 200. FIG. [Diagram 5] FIG. 4 shows a basic configuration of a terminal device 400. [Figure 6] FIG. 4 is a block diagram showing the functional configuration of a terminal device 400. [Figure 7] 13 is a diagram showing specific contents stored in a mass DB 421. FIG. [Figure 8] 2 is a diagram illustrating an example of a control process executed by the lost-item detection device 1. FIG. [Figure 9] 2 is a diagram illustrating an example of a control process executed by the lost-item detection device 1. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the embodiments described below do not unduly limit the contents of the present disclosure described in the claims. In addition, not all components shown in the embodiments are necessarily essential components of the present disclosure.

[0013] (Overall composition) 1 is a diagram showing the basic configuration of a lost property detection device 1 according to the present invention. The lost property detection device 1 comprises a clothes hanger 10 and a terminal device 400, and the clothes hanger 10 and the terminal device 400 are connected wirelessly, such as Bluetooth (registered trademark), or via a network, such as Ethernet (registered trademark).

[0014] The clothes hanger 10 is a hanger for hanging clothes and has a sensor for detecting weight. The terminal device 400 is connected to the clothes hanger 10 by wireless or other means, and when the clothes hanger 10 detects the weight, the information is transmitted to the terminal device 400.

[0015] The clothing hanger 10 and the terminal device 400 may each be one or more.

[0016] (Configuration of clothing hanger 10) 2 is a diagram showing the basic structure of the clothes hanger 10. The clothes hanger 10 is composed of a hook part 100, a sensor part 200, a registration button 207, and a shoulder part 300. The hook part 100 is a part that is hung on a hanger rack, and the shoulder part 300 is a part provided for hanging clothes. These are the same as general clothes hangers, but the clothes hanger 10 of the present invention further comprises a sensor part 200 that can detect weight, and a registration button 207 for registering the weight of clothes.

[0017] 3 is a diagram showing a basic configuration of the sensor unit 200. The sensor unit 200 includes a processor 201, a memory 202, a storage 203, a weight sensor 204, an input IF 205, and a communication IF 206.

[0018] The processor 201 is hardware for executing an instruction set written in a program, and is composed of an arithmetic unit, a register, a peripheral circuit, and the like. The memory 202 is for temporarily storing the program and data processed by the program, and is realized by a volatile memory such as a dynamic random access memory (DRAM). The storage 203 is a storage device for saving the program and data, and is realized by a flash memory or a hard disk drive (HDD). The weight sensor 204 is a sensor for measuring the weight of the clothes hung on the clothes hanger 10, and is realized by a commonly used load cell, and the like. The input IF 205 is an input device for accepting input from a user, and is realized as a registration button 207 in the present invention. The communication IF 206 is an interface for transmitting and receiving signals so that the clothes hanger 10 can communicate with the terminal device 400.

[0019] 4 is a block diagram showing the functional configuration of the sensor unit 200. The sensor unit 200 includes a communication unit 210, a storage unit 220, and a control unit 230.

[0020] The communication unit 210 performs processing for the clothes hanger 10 to communicate with the terminal device 400. This is a function realized by the communication IF 206 in FIG.

[0021] The memory unit 220 stores data and programs used by the clothes hanger 10. This is a function realized by the storage 203 in FIG.

[0022] The control unit 230 includes a button press detection unit 231 , a mass registration unit 232 , and a mass detection unit 233 .

[0023] The button press detection unit 231 detects that the user has pressed the registration button 207. The user can register in advance the weight of the clothes to be hung on the clothes hanger 10, and can register the weight of the clothes by pressing the registration button 207 and then hanging the target clothes on the clothes hanger 10.

[0024] When the button press detection unit 231 detects that the registration button 207 has been pressed, the mass registration unit 232 measures the weight of the clothes hung on the clothes hanger 10 via the weight sensor 204, and transmits the weight to the terminal device 400 to be registered.

[0025] At this time, when the user presses the registration button 207, force may be applied to the clothes hanger 10, causing the clothes hanger 10 itself to move and making it impossible to measure the weight accurately. Therefore, it is possible to wait a certain amount of time before measuring the weight of the clothes and register that weight.

[0026] In addition, since it is possible that the clothes hanger 10 itself moves as described above, making it impossible to measure the weight accurately, it is also possible to wait until the weight detected by the weight sensor 204 remains the same for a certain period of time before registering the measured weight.

[0027] The mass detection unit 233 measures the weight of the clothes hung on the clothes hanger 10 via the weight sensor 204 of the clothes hanger 10 and transmits the weight to the terminal device 400.

[0028] As described above, the clothes hanger 10 of the present invention, unlike a general hanger, has the sensor unit 200, which makes it possible to measure and register the weight of clothes hung on the clothes hanger 10. Furthermore, by providing the clothes hanger 10 with a weight measurement function, the present lost item detection device 1 can be realized.

[0029] (Configuration of terminal device 400) 5 is a diagram showing a basic configuration of the terminal device 400. The terminal device 400 includes a processor 401, a memory 402, a storage 403, an input / output IF 404, and a communication IF 405.

[0030] The processor 401 is hardware for executing an instruction set written in a program, and is composed of an arithmetic unit, a register, a peripheral circuit, etc. The memory 402 is for temporarily storing the program and data processed by the program, etc., and is realized by a volatile memory such as a dynamic random access memory (DRAM). The storage 403 is a storage device for saving the program and data, and is realized by a flash memory or a hard disk drive (HDD). The input / output IF 404 functions as an input device for receiving input from a user, and as an interface with an output device for presenting information to the user. The communication IF 405 is an interface for transmitting and receiving signals so that the terminal device 400 can communicate with the clothes hanger 10.

[0031] FIG. 6 is a block diagram showing the functional configuration of the terminal device 400. As shown in FIG.

[0032] The terminal device 400 includes a communication unit 410, a storage unit 420, and a control unit 430.

[0033] The communication unit 410 performs processing for the terminal device 400 to communicate with the clothes hanger 10. This is a function realized by the communication IF 405 in FIG.

[0034] The memory unit 420 stores data and programs used by the terminal device 400. This is a function realized by the storage 403 in Fig. 5. The memory unit 420 also includes a mass DB 421 that stores the weight of clothes for the clothes hanger 10.

[0035] The control unit 430 includes a mass information acquisition unit 431 , a mass determination unit 432 , and a notification unit 433 .

[0036] When the mass information acquisition unit 431 receives data for registration from the clothes hanger 10, it registers the weight in the mass DB 421. At this time, the weight may be stored in the mass DB 421 together with an ID (IDentification) assigned to the clothes hanger 10.

[0037] The basic function of the lost property detection device 1 is for a user to register the weight of a jacket that he or she normally wears on the clothes hanger 10 and to detect whether valuables are in the pockets or the like when the user returns home. However, by assigning an ID to the clothes hanger 10, a user can manage multiple clothes hangers 10. This allows the user to register the clothes to be hung on each clothes hanger 10, and even if the user leaves valuables and the like in multiple clothes, he or she can still receive notifications of lost items. Furthermore, when there are multiple users, it is possible to manage the clothes hangers 10 used by specific users by assigning IDs.

[0038] When the mass information acquisition unit 431 receives the data for registration from the clothes hanger 10, it may display that fact on the terminal device 400 and ask the user whether or not to register, and may store the information in the mass DB 421 of the terminal device 400 when the user presses the registration button 207. This allows the user to check whether the registration procedure for the weight of the clothes has been completed for the clothes hanger 10.

[0039] Furthermore, the mass information acquisition unit 431 may prompt the user to confirm and change the threshold values ​​t and T described below. Since the type of clothes to be hung and the weight of the items to be put in the clothes are different for each user, it is possible to reduce false detections by allowing registration for each user.

[0040] When the weight of the clothes is detected and data is received from the clothes hanger 10, the mass determination unit 432 receives the ID and weight assigned to the clothes hanger 10.

[0041] The mass determination unit 432 obtains the weight registered for the ID from the mass DB 421 and compares it with the weight received from the clothing hanger 10. When the registered weight is W0 and the detected weight is W1, with the threshold value being t, if W0 + t < W1, it is determined that there is a valuable item left in the pre-registered clothing. The threshold value t is a value for allowing errors. By allowing an error within the range of the threshold value t for the clothing measured by the clothing hanger 10, it is possible to prevent false detection of forgotten items.

[0042] In actual usage scenarios, it is also assumed that clothing other than the clothing registered on the clothing hanger 10 may be hung. Therefore, with the threshold value being T, when the detected weight W1 satisfies W1 > W0 + T, it may be determined that clothing different from the registered clothing is hung (that is, it is not determined that there is a valuable item left in it). If something heavy is put into the pocket of the clothing, there are drawbacks such as the pocket bulging and looking unsightly, or the shoulder becoming stiff. Generally, the items placed in the pocket of the clothing are considered to be within a certain weight range. Therefore, using the threshold value T as the upper limit of the weight of items such as valuable items that are assumed to be placed in the clothing, when a weight exceeding this is detected, it is possible to prevent false detection by presuming that clothing other than the registered clothing is hung.

[0043] Furthermore, the threshold values t and T may be defined not as weights (g) but as values of percentages (%) of the registered weight W0. This is because the larger the weight of the registered clothing, the greater the possibility of a larger error. By defining it proportionally, it is possible to prevent false detection more effectively.

[0044] When the mass determination unit 432 determines that valuables have been left in the clothes, the notification unit 433 notifies the user of that fact. The notification by the notification unit 433 may be made on the app as a program such as an app, or may be made in the form of a pop-up on the system. In addition, the notification unit 433 may have the user's email address, SMS (Short Message Service), and SNS (Social Networking Service) accounts registered in advance, and may notify the user that valuables have been left in the clothes using these means. By notifying the user through an app, email, SNS, etc., the user can easily notice that they have left something behind in the clothes.

[0045] (Specific memory contents of mass DB421) Fig. 7 is a diagram showing the specific contents stored in the mass DB 421. Fig. 7 shows, for example, that the clothes hanger 10 assigned with ID=H001 has registered clothes weighing 1100 g. As shown in Fig. 7, an ID is assigned to each clothes hanger 10, and the weight of the clothes when the registration button 207 is pressed is stored together with the ID.

[0046] (Example of processing) The configuration of the lost item detection device 1 has been described above, and the specific process will now be described.

[0047] When using the clothes hanger 10, the user hangs the clothes that are usually hung (clothes with nothing in the pockets, etc.) on the clothes hanger 10 and presses the registration button 207. Then, the button press detection unit 231 of the clothes hanger 10 detects this, and the weight measured by the mass registration unit 232 is transmitted to the terminal device 400. Here, for example, it is assumed that the coat hung by the user on the clothes hanger 10 weighs 1300 g, and the ID of the clothes hanger 10 used by the user is H010.

[0048] The terminal device 400 receives the ID (H010) and weight (1300 g) transmitted from the clothes hanger 10 through the mass information acquisition unit 431. Then, the terminal device 400 confirms with the user whether or not to register the ID and weight. If the user wishes to register the ID and weight, the terminal device 400 stores the ID and weight in the mass DB 421.

[0049] Assume that the user uses the clothes hanger 10 on another occasion to hang up the same coat as the previously registered coat, and that the user leaves his / her wallet in the hanger, weighing 500 g.

[0050] When the user hangs the coat on the clothes hanger 10, the wallet is still inside the coat, so the mass detection unit 233 detects the weight as 1800 g and transmits the ID (H010) and weight (1800 g) to the terminal device 400.

[0051] The terminal device 400 acquires information on the ID (H010) and weight (1800g) via the mass determination unit 432. The mass determination unit 432 acquires information from the mass DB 421 that the weight of H010 is 1300g. Here, when the threshold value t (for error tolerance) is 100g and the threshold value T (which is the assumed upper limit weight of a lost item) is 1200g, the mass received by the mass determination unit 432 is 1300g+100g<1800g, and therefore the unit determines that the valuables are still inside. Also, since 1300g+1200g<1800g is not satisfied, the unit does not determine that the clothing is not registered, and the unit 432 maintains its determination that the valuables are still inside.

[0052] Mass determination unit 432 notifies the user via notification unit 433 that the valuables are still inside, and upon seeing this, the user realizes that the wallet is still inside the coat.

[0053] (Use of multiple devices) The lost item detection device 1 does not need to have one each of the clothes hanger 10 and the terminal device 400. For example, if multiple clothes hangers 10 are used, one user can detect lost items of multiple clothes by registering the weight of each. Also, multiple terminal devices 400 can be prepared and multiple users can use the device by storing the ID information of the clothes hangers 10 they use in their own terminal devices 400.

[0054] When registering the weight of the clothes hung on the clothes hanger 10, the lost property detection device 1 may communicate with the terminal device 400 by wireless communication, for example, so that the weight can be registered for the terminal device 400 within the range of the wireless communication. This makes it possible to limit the registration targets when multiple users use multiple terminal devices 400, thereby reducing the inconvenience for the users.

[0055] (Processing flow) An example of a control process executed by the lost-item detection device 1 will be described with reference to FIG.

[0056] In the scene of registering the weight of the clothes, the clothes hanger 10 detects the pressing of the registration button 207 (step S101).

[0057] The clothes hanger 10 measures the weight of the clothes hung on the clothes hanger 10, and transmits its own ID and the weight to the terminal device 400 (step S102).

[0058] The terminal device 400 acquires the ID and weight from the clothes hanger 10, and stores this information in the mass DB 421 (step S103).

[0059] Next, an example of a control process executed by the lost item detection device 1 when detecting clothes will be described with reference to FIG.

[0060] When detecting the clothes, the clothes hanger 10 detects the weight of the clothes and transmits the weight to the terminal device 400 together with its own ID.

[0061] The terminal device 400 acquires the ID and weight information from the clothes hanger 10. Then, it acquires the weight information registered for the corresponding ID from the mass DB 421. It compares the registered weight with the weight acquired from the clothes hanger 10, and performs a notification process if it determines that valuables or other items left behind have been left inside the clothes hung on the clothes hanger 10. If it determines that there is no item left behind inside the clothes, it ends the process (step S202).

[0062] In the notification scene, the terminal device 400 notifies the user that an item has been left behind in the clothes hanger 10, and then ends the process (step S203).

[0063] (Explanation of effect) The lost property detection device 1 according to the present invention allows a user to detect an item left in clothing and obtain information on where the item was left. This makes it possible to eliminate the time wasted in searching for the item.

[0064] In addition, while it has been possible in the past to detect whether or not there are objects nearby using wireless communication, the present invention deliberately equips clothing hangers with a detection device, making it possible to focus on outerwear, where valuables are often left inside, and efficiently detect forgotten items.

[0065] In the lost item detection device 1 of the present invention, by using a threshold value t of the allowable error and a threshold value T of the expected items to be placed in the clothes, it is possible to tolerate cases where clothes other than the registered clothes are hung or measurement errors in the clothes hanger 10, and prevent erroneous detection.

[0066] Furthermore, by assigning an ID to the clothing hanger 10, it is possible to control multiple clothing hangers 10 with the terminal device 400, making it possible for one person to use multiple clothing hangers 10 or for multiple people to use multiple clothing hangers 10.

[0067] Although the preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the specific embodiment, and the present disclosure includes the invention described in the claims and its equivalents. In addition, the configurations of the devices described in the above embodiments can be appropriately combined as long as no technical contradiction occurs. [Explanation of symbols]

[0068] 1... Lost item detection device, 10... Clothes hanger, 100... Hook section, 200... Sensor section, 207... Registration button, 201, 401... Processor, 202, 402... Memory, 203, 403... Storage, 204... Weight sensor, 205... Input IF, 206, 405... Communication IF, 210, 410... Communication section, 220, 420... Memory section, 230, 430... Control section, 231... Button press detection section, 232... Mass registration section, 233... Mass detection section, 300... Shoulder section, 400... Terminal device, 404... Input / output IF, 421... Mass DB, 431... Mass information acquisition section, 432... Mass determination section, 433... Notification section, NW... Network

Claims

1. A clothing hanger and a terminal device are provided. the clothing hanger includes a mass registration unit that detects the weight of the clothing and transmits the weight of the clothing to the terminal device for registration; a mass detection unit that detects the weight of the clothing when the clothing is hung and transmits the weight to the terminal device; The terminal device has a mass information acquisition unit that acquires and stores a weight of the clothing to be registered from the clothing hanger; a mass determination unit that acquires the weight of the clothes from a mass detection unit of the clothes hanger and compares it with the weight of the clothes registered in the mass information acquisition unit to determine whether any item has been left behind; A lost item detection device comprising a notification unit that notifies a user when the mass determination unit determines that an item has been left behind.

2. A clothing hanger and a terminal device are provided. the clothing hanger has a button for registering the weight of the clothing, and a button depression detection unit for detecting when the button is depressed; a mass registration unit that detects a weight of the clothing and transmits the weight of the clothing to the terminal device when the button press detection unit detects that the button has been pressed; a mass detection unit that detects the weight of the clothing when the clothing is hung and transmits the weight to the terminal device; The terminal device has a mass information acquisition unit that acquires and stores a weight of the clothing to be registered from the clothing hanger; a mass determination unit that acquires the weight of the clothes from a mass detection unit of the clothes hanger and compares it with the weight of the clothes registered in the mass information acquisition unit to determine whether any item has been left behind; A lost item detection device comprising a notification unit that notifies a user when the mass determination unit determines that an item has been left behind.

3. A clothing hanger and a terminal device are provided. the clothing hanger includes a mass registration unit that detects the weight of the clothing and transmits the weight of the clothing to the terminal device for registration; a mass detection unit that detects the weight of the clothing when the clothing is hung and transmits the weight to the terminal device; The terminal device has a mass information acquisition unit that acquires and stores a weight of the clothing to be registered from the clothing hanger; a mass determination unit which obtains the weight of the clothes from a mass detection unit of the clothes hanger and sets this weight as W1, sets the weight of the clothes registered in the mass information acquisition unit as W0, and further uses a threshold value t for error tolerance and a threshold value T for the weight of an item expected to be placed in the clothes to determine that an item has been left behind when W1 is greater than W0+t and equal to or less than W0+T; A lost item detection device comprising a notification unit that notifies a user when the mass determination unit determines that an item has been left behind.

4. A clothing hanger and a terminal device are provided. the clothing hanger has a button for registering the weight of the clothing, and a button depression detection unit for detecting when the button is depressed; a mass registration unit that detects a weight of the clothing and transmits the weight of the clothing to the terminal device when the button press detection unit detects that the button has been pressed; a mass detection unit that detects the weight of the clothing when the clothing is hung and transmits the weight to the terminal device; The terminal device has a mass information acquisition unit that acquires and stores a weight of the clothing to be registered from the clothing hanger; a mass determination unit which obtains the weight of the clothes from a mass detection unit of the clothes hanger and sets this weight as W1, sets the weight of the clothes registered in the mass information acquisition unit as W0, and further uses a threshold value t for error tolerance and a threshold value T for the weight of an item expected to be placed in the clothes to determine that an item has been left behind when W1 is greater than W0+t and equal to or less than W0+T; A lost item detection device comprising a notification unit that notifies a user when the mass determination unit determines that an item has been left behind.

5. The lost item detection device of claim 3 or claim 4, wherein the mass information acquisition unit, when acquiring and storing the weight of the clothes for registration from the clothes hanger, prompts the user to confirm the threshold value t and the threshold value T, and the user can modify and register the predetermined threshold value t and threshold value T.

6. A plurality of clothing hangers and one or more terminal devices, the clothes hanger has a mass registration unit for detecting a weight of the clothes and transmitting the weight for registration of the clothes and an ID of the clothes hanger to the terminal device; a mass detection unit that detects the weight of the clothing when the clothing is hung and transmits the weight to the terminal device; The terminal device has a mass information acquisition unit that acquires and stores the weight of the clothes to be registered and the ID of the clothes hanger from the clothes hanger; a mass determination unit that acquires the weight of the clothes and the ID of the clothes hanger from the mass detection unit of the clothes hanger, and compares the weight of the clothes corresponding to the ID of the clothes hanger registered in the mass information acquisition unit to determine whether any items have been left behind; A lost item detection device comprising a notification unit that notifies a user when the mass determination unit determines that an item has been left behind.

Citation Information

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