JP2023008292A - Measurement device and network system - Google Patents

Abstract

To provide a measurement device or a network system capable of suppressing power consumption.SOLUTION: A measurement device 100 is provided, comprising a weight sensor 130 for measuring the weight of a consumer product, a vibration sensor 140 for detecting vibration, and a communication unit 160 for sending the weight. The weight of a consumer product is measured by the weight sensor 140 when vibration is detected by the vibration sensor 130.SELECTED DRAWING: Figure 2

Description

The present invention relates to techniques for measuring the remaining amount of consumer goods.

Conventionally, techniques for grasping the remaining amount of consumer goods are known. For example, Japanese Patent Laying-Open No. 2017-84020 (Patent Document 1) discloses a general-purpose electronic inventory management and automatic ordering system using a weight measuring instrument with wireless internet communication or mobile data communication function. According to Patent Document 1, a weighing instrument with wireless internet communication or mobile data communication capability designed to be permanently installed under the consumer goods or consumables themselves, and a weight delivered in real time via the Internet from the weighing instrument. It also has a system on the Internet that holds values and has an order processing function for the company's ordering system.

Japanese Patent Laying-Open No. 2002-175445 (Patent Document 2) discloses a consumables supply system and a consumables supply method. According to Patent Document 2, a consumption calculation unit that appropriately calculates the current stock amount of consumables consumed by itself, and the current stock amount in response to the current stock amount output by the consumption calculation unit. a control unit that outputs a request for the consumables when the inventory amount is below a reference value; and a communication unit that connects to the Internet and transmits and receives the request for the consumables output from the control unit. A transmitting information communication device and a distribution department belonging to a consumables supplier that delivers the consumables to an order source in response to the order, and the information communication device is an information processing related device or a communication related device. , run the system.

Further, Japanese Patent Application Laid-Open No. 2018-073007 (Patent Document 3) discloses an ordering system and a home appliance using a home appliance. According to Patent Document 3, there is an ordering system for ordering consumables for home electric appliances, in which a sensor for detecting the usage state of the main body of the electric home appliance and the consumables of the home electric appliance main body, and the state of the consumables based on the information detected by the sensor. A home appliance having a control unit that calculates information and a communication processing unit that transmits state information to the outside, and a communication processing unit that receives the state information transmitted from the communication processing unit of the home appliance and transmits the information to the outside. Equipped with a communication terminal and an EC site server that transmits and receives information to and from the communication processing unit of the communication terminal via a wide-area public network, the home appliance transmits state information to the communication terminal when the usage amount of consumables is determined. configuration.

Further, Japanese National Publication of International Patent Application No. 2019-524586 (Patent Document 4) discloses a container provided with a device and communication means. US Pat. No. 5,300,004 relates to a container comprising a device, which is a sensor and/or information storage device, and communication means for transferring data from the container to a receiver. It also relates to systems comprising such containers, for example storage systems.

JP 2017-84020 A JP 2002-175445 A JP 2018-073007 A Japanese Patent Publication No. 2019-524586

An object of the present invention is to provide a measuring device or a network system capable of suppressing power consumption.

According to one aspect of the invention, a measuring device is provided that includes a weight sensor for measuring the weight of a consumer good, a vibration sensor for detecting vibration, and a communication unit for transmitting the weight. A weight sensor measures the weight of the consumer goods when vibration is detected by the vibration sensor.

As described above, according to the present invention, there is provided a measuring device or network system capable of suppressing power consumption.

1 is an image diagram showing the overall configuration of a network system according to a first embodiment; FIG. FIG. 3 is an image diagram showing an overview of the operation of the measuring device according to the first embodiment; 1 is a block diagram showing the configuration of a measuring device according to a first embodiment; FIG. 4 is a flowchart showing information processing of the measuring device according to the first embodiment; 2 is a block diagram showing the configuration of a server according to the first embodiment; FIG. FIG. 4 is an image diagram showing remaining amount data according to the first embodiment; 1 is a block diagram showing the configuration of a communication terminal according to a first embodiment; FIG. FIG. 10 is an image diagram showing an overview of the operation of the measuring device according to the second embodiment; It is a flow chart which shows information processing of a measuring device concerning a 3rd embodiment. It is an image figure which shows the operation|movement outline|summary of the measuring device concerning 4th Embodiment. It is a block diagram which shows the structure of the measuring device concerning 4th Embodiment. It is a flow chart which shows information processing of a measuring device concerning a 4th embodiment. FIG. 14 is a flow chart showing another information processing of the measuring device according to the fourth embodiment; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are given the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.
<First Embodiment>
<Overall Configuration and Operation Overview of Network System 1>

First, the overall configuration of a network system 1 according to this embodiment will be described with reference to FIG. A network system 1 according to the present embodiment mainly includes a measuring device 100 and servers 200A and 200B. The network system 1 according to the present embodiment includes, as servers, a device server 200A for collecting data from the measuring device 100, and a sales server 200B for restocking, ordering, and selling consumer goods. The sales server 200B is implemented by a server of a company that operates an EC site, a server of a company that manufactures, sells, and ships products, and the like.

The measuring device 100 is used by attaching it to a case 190 that houses consumer goods. The measuring device 100 measures the remaining amount of consumable goods and transmits it to the equipment server 200A. Consumer goods include food and drink such as supplements, medicines, coffee, alcohol, and rice, daily necessities such as shampoos, rinses, detergents, tissues, and air fresheners. Consumables are preferably purchased and replaced every few days or months.

The device server 200A can communicate with the measuring device 100 via the Internet or the like. Based on the remaining amount of consumer goods acquired from the measuring device 100, the equipment server 200A transmits various types of information regarding the use of the consumer goods to the sales server 200B and the communication terminal 300 of the user of the consumer goods.

The sales server 200B can communicate with the equipment server 200A via the Internet or the like. Based on the remaining amount of consumer goods obtained from the equipment server 200A, the sales server 200B automatically accepts orders for consumer goods and issues shipping instructions to distributors, factories, and carriers for replenishment of consumer goods. output.

In particular, in the present embodiment, as shown in FIG. 2, measuring device 100 measures the weight of consumer goods and transmits the measurement result to device server 200A when vibration is detected. Specifically, when vibration is not detected, the measuring device 100 turns off the communication unit, turns off the weight sensor, and also puts the MCU in a sleep state. Then, when vibration is detected, the MCU is activated. After the vibration subsides, when a predetermined time elapses without vibration, the MCU turns on the weight sensor to measure the weight of the consumer goods, turns on the communication unit, and sends the measurement result to the device server. 200A. After that, the MCU turns off the communication unit again, turns off the weight sensor, and shifts itself to the sleep state.

As described above, the measuring device 100 according to the present embodiment turns on the weight sensor and the communication unit to perform measurement and transmission only when vibration is detected. , the time between battery replacement can be lengthened. The configuration for realizing such functions will be described in detail below.
<Configuration of measuring device 100>

First, with reference to FIG. 2, one aspect of the configuration of the measuring device 100 that configures the network system 1 will be described. The measuring device 100 according to the present embodiment is used by being attached to the bottom surface of a case 190 for storing consumer goods.

The measurement device 100 includes, as main components, an MCU (Micro Controller Unit) 110, a memory 120, a weight sensor 130, a vibration sensor 140, a timer 150, a communication unit 160, a light 170, a speaker 180, and the like. include. Note that, of course, the configuration is not limited to having the light 170 and the speaker 180 .

The MCU 110 controls each part of the measuring apparatus 100 by executing programs stored in a storage medium such as ROM and RAM.

The memory 120 is realized by various RAMs, various ROMs, etc., and stores programs executed by the MCU 110, data generated by executing the programs by the MCU 110, data measured by the weight sensor 130 and its history, and other books. Stores information necessary for using services.

The weight sensor 130 is implemented by a load cell or the like, and measures the weight of a case 190 containing consumer goods.

Vibration sensor 140 is realized by a 6-axis acceleration sensor or the like, and detects vibration of measuring device 100 . Note that the acceleration measured by the vibration sensor 140 may be input to the MCU 110 and the MCU 110 may determine the presence or absence of vibration, or the vibration sensor 140 may input the presence or absence of vibration to the MCU 110 .

The timer 150 measures the current time and the elapsed time from a predetermined timing, and inputs them to the MCU 110 . Note that, of course, the timer 150 may be included in the MCU 110 .

The communication unit 160 is implemented by an antenna, a connector, and the like, and uses wireless LAN (Wi-Fi) communication or Bluetooth communication to exchange data with the device server 200A via a router or the Internet. The communication unit 160 may exchange data with the communication terminal 300 such as a smartphone, tablet, or personal computer via a router or the Internet using wireless LAN (Wi-Fi) communication or Bluetooth communication.

Light 170 emits light based on an instruction from MCU 110 . For example, it emits a warning light to indicate that the remaining amount is low, or that the specified amount of consumption goods has not been consumed.

A speaker 180 emits sound based on an instruction from the MCU 110 . For example, a warning sound is emitted to indicate that the remaining amount is running low or that the specified amount of consumption goods has not been consumed.
<Information processing of measuring device 100>

Next, control processing in the measuring device 100 will be described with reference to FIGS. 2 to 4. FIG. In this embodiment, MCU 110 executes the following processes by executing a program stored in a storage medium such as ROM or RAM.

First, the MCU 110 is in a sleep state (step S102).

When vibration sensor 140 detects vibration (YES in step S104), MCU 110 is activated (step S106).

The MCU 110 determines whether or not the vibration continues (step S108).

When the vibration ends (NO in step S108), timer 150 is started (step S110).

The MCU 110 determines whether or not the vibration-free state (NO in step S111) has continued for a predetermined time (step S112). Note that when vibration is detected, the MCU 110 repeats the processing from step S108.

When the state of no vibration continues for a predetermined time (YES in step S112), MCU 110 activates weight sensor 130 to measure the weight of the consumer goods (step S114).

The MCU 110 activates the communication unit 160 and transmits the measured weight to the equipment server 200A (step S118).

The MCU 110 turns off the weight sensor 130 and the communication unit 160, and shifts itself to a sleep state (step S120).
<Configuration of Device Server 200A>

Next, one aspect of the configuration of the device server 200A configuring the network system 1 according to the present embodiment will be described. Referring to FIG. 5, device server 200A includes a CPU (Central Processing Unit) 210, a memory 220, an operation unit 240, and a communication interface 260 as main components.

CPU 210 controls each unit of device server 200A by executing programs stored in memory 220 . For example, CPU 210 executes a program stored in memory 220 and refers to various data to perform various processes described later.

The memory 220 is realized by various RAMs (random access memories), various ROMs (read-only memories), etc., and may be included in the device server 200A, or may be provided in various interfaces of the device server 200A. It may be detachable, or may be a recording medium of another device accessible from the device server 200A. The memory 220 stores programs executed by the CPU 210, data generated by the execution of the programs by the CPU 210, input data, databases used for other services according to the present embodiment, and the like.

For example, memory 220 stores remaining amount data 221 as shown in FIG. The remaining amount data 221 stores, for each measuring apparatus, correspondence relationships such as user identification information, measuring apparatus identification information, types and product names of consumable goods, remaining amount history data, and last replenishment date and time. do. The history data of the remaining amount is history information of a combination of the measured date and time and the measured weight.

Returning to FIG. 5 , the operation unit 240 receives commands from a service manager, operator, service person, etc., and inputs the commands to the CPU 210 .

Communication interface 260 transmits data from CPU 210 to measuring device 100, communication terminal 300, and other devices via the Internet, a carrier network, a router, and the like. Conversely, the communication interface 260 receives data from the measuring device 100, the communication terminal 300, or other devices via the Internet, carrier network, router, or the like, and transfers the data to the CPU 210. FIG.

The CPU 210 of the device server 200A receives measurement results such as weight from the measuring device 100 via the communication interface 260 and accumulates them in the remaining amount data 221 . Then, when the weight change in the measuring device 100 is smaller than a predetermined amount, the CPU 210 transmits warning information to that effect to the measuring device 100, or sends a message to the communication terminal of the user corresponding to the measuring device 100. 300, the warning information to that effect is transmitted. Alternatively, the CPU 210 may transmit warning information to that effect to the measuring device 100 based on changes in weight when the consumption goods are not reduced even though it is a time zone in which they are always consumed. , to the communication terminal 300 of the user corresponding to the measuring device 100, the warning information to that effect is transmitted.

The CPU 210 of the device server 200A also provides various information such as weight from the measuring device 100 to the sales server 200B.
<Configuration of sales server 200B>

Next, since the configuration of sales server 200B configuring network system 1 according to the present embodiment is the same as device server 200A, description thereof will not be repeated here.

Note that CPU 210 of sales server 200B receives measurement results such as weight from equipment server 200A via communication interface 260 and accumulates them in remaining amount data 221 of itself. Then, when the weight of the consumer goods in the measuring device 100 decreases, the CPU 210 automatically accepts an order for the consumer goods with respect to the user corresponding to the measuring device 100, and instructs the distributor, factory, or carrier to ship the goods. output.
<Configuration of communication terminal 300>

With reference to FIG. 7, one aspect of the configuration of the communication terminal 300 of the user who uses the consumer goods forming the network system 1 will be described. For example, communication terminal 300 includes CPU 310, memory 320, display 330, operation unit 340, communication interface 360, speaker 370, and microphone 380 as main components.

CPU 310 controls each section of communication terminal 300 by executing programs stored in memory 320 .

The memory 320 is implemented by various RAMs, various ROMs, and the like. Memory 320 identifies application programs for various services, data generated by execution of programs by CPU 310, data received from server 200, data input via operation unit 340, and the user of communication terminal 300. Stores information for

Display 330 displays images and text based on data from CPU 310 . The operation unit 340 is configured by a pointing device, switches, and the like, and inputs various commands from the user to the CPU 310 . Communication terminal 300 may have touch panel 350 including display 330 and operation unit 340 .

Communication interface 360 transmits and receives data to and from other devices such as device server 200A and measuring device 100 via the Internet, carrier network, router, or the like. For example, CPU 310 exchanges various information with other devices such as device server 200A and measuring devices via communication interface 360 according to a web browser application program and a dedicated service application program.

Speaker 370 outputs various sounds based on signals from CPU 310 . The CPU 310 may output the response received from the server 200 as voice, not limited to the display 330 .

Microphone 380 receives voice and inputs voice data to CPU 310 . CPU 310 may receive a voice message from a user, not limited to operation unit 340 , and transmit the voice message to server 200 .

For example, the CPU 310 of the communication terminal 300 receives the remaining amount of consumer goods from the measuring device 100 or the server 200 via the communication interface 360 according to the application program in the memory 320, displays the information on the display 330, Sound is output from the speaker 370 or the like. In addition, according to the application program in the memory 320, the CPU 310 determines, via the communication interface 360, based on the information from the measuring device 100 and the server 200, that there is no change in the remaining amount of consumable goods and that the desired amount of consumption has not been achieved. A warning to that effect is displayed on the display 330 or output as a voice from the speaker 370 .
<Second Embodiment>

In the above embodiment, the measuring device 100 is attached to the bottom surface of the case 190 of consumer goods. However, it is not limited to such a form. For example, as shown in FIG. 8, the measurement device 100 may have a consumer goods case 190 resting thereon.

Also in the present embodiment, measuring device 100 measures the weight of consumer goods case 190 placed above and transmits the measurement result to device server 200A when vibration is detected. Specifically, when vibration is not detected, the measuring device 100 turns off the communication unit, turns off the weight sensor, and also puts the MCU in a sleep state. Then, when the vibration is detected, the MCU is activated. When the vibration subsides and a predetermined period of time elapses without vibration, the MCU turns on the weight sensor to measure the weight of the consumer goods, turns on the communication unit, and sends the measurement result to the device server 200A. Send to After that, the MCU turns off the communication unit, turns off the weight sensor, and shifts itself to a sleep state.
<Third Embodiment>

In the above embodiment, the measuring device 100 measures the weight and transmits the weight to the device server 200A each time it detects vibration. However, the weight does not have to be sent every time it is measured.

For example, as shown in FIG. 9, MPU 110 of measuring device 100 accumulates the weight in memory 120 after measuring the weight (step S114). Then, when measurement data of a predetermined number of times or more have been accumulated (YES in step S116), MPU 110 activates communication unit 160 to transmit the plurality of measurement data accumulated up to that point. It is transmitted to the equipment server 200A via the unit 160 (step S118).

Alternatively, MPU 110 of measuring device 100 accumulates the weight in memory 120 after measuring the weight (step S114). Then, when MPU 110 is on alert for a predetermined period of time, for example, 24 hours since the previous transmission (YES in step S116), MPU 110 transmits the measurement data accumulated in the institution through communication unit 160. to the equipment server 200A (step S118).

Alternatively, MPU 110 of measuring device 100 accumulates the weight in memory 120 after measuring the weight (step S114). Then, the MPU 110 reads the previously transmitted weight from the memory 220, and if the current weight is less than the previously transmitted weight by a predetermined amount (YES in step S116), The measurement data accumulated in the institution is transmitted to the equipment server 200A via the communication unit 160 (step S118). The MPU 110 also stores the transmitted weight in the memory 120 .

Furthermore, the MPU 110 of the measuring device 100 may perform the processing of steps S116 and S118 by being activated periodically even after the weight is measured.
<Fourth Embodiment>

In the above embodiment, weight is measured when vibration is detected. In the present embodiment, as shown in FIG. 10, the weight of consumer goods is measured based on the presence or absence of detection of an object such as the consumer goods or case 190 .

In the present embodiment, when the measuring device 100 detects an object, that is, the case 190 in advance, the measuring device 100 turns off the communication unit, turns off the weight sensor, and puts the MCU into a sleep state. It's becoming Then, when the case 190 leaves the measuring device 100, the MCU is activated. When a predetermined time elapses while detecting the case again, the MCU turns on the weight sensor, measures the weight of the consumer goods, turns on the communication unit, and transmits the measurement result to the equipment server 200A. . After that, the MCU turns off the communication unit, turns off the weight sensor, and shifts itself to a sleep state.

More specifically, in the present embodiment, as shown in FIG. 11, measuring device 100 is equipped with proximity sensor 145 . Proximity sensor 145 detects, for example, that an object is placed on the upper surface of measuring device 100 and inputs the detection result to MCU 110 .

Next, control processing in the measuring device 100 will be described with reference to FIGS. 10 to 12. FIG. In this embodiment, MCU 110 executes the following processes by executing a program stored in a storage medium such as ROM or RAM.

First, the MCU 110 is in a sleep state (step S102).

When proximity sensor 145 no longer detects an object (NO in step S204), MCU 110 is activated (step S106).

The MCU 110 detects whether there is an object (step S208).

If an object is detected (YES in step S208), timer 150 is started (step S110).

The MCU 110 determines whether or not the presence of the object (YES in step S211) has continued for a predetermined time (step S112). Note that when the object disappears (NO in step S211), the MCU 110 repeats the processing from step S108.

When the object continues for a predetermined time (YES in step S112), MCU 110 activates weight sensor 130 to measure the weight of the consumer goods (step S114).

The MCU 110 activates the communication unit 160 and transmits the measured weight to the equipment server 200A (step S118).

The MCU 110 turns off the weight sensor 130 and the communication unit 160, and shifts itself to a sleep state (step S120).

Note that the vibration sensor 140 and the proximity sensor 145 may be used. Control processing in the measuring device 100 will be described with reference to FIG. 13 . In this embodiment, MCU 110 executes the following processes by executing a program stored in a storage medium such as ROM or RAM.

First, the MCU 110 is in a sleep state (step S102).

When vibration sensor 140 detects vibration (YES in step S104), MCU 110 is activated (step S106).

The MCU 110 detects whether there is an object (step S208).

If an object is detected (YES in step S208), timer 150 is started (step S110).

The MCU 110 determines whether the state of no vibration (NO in step S111) and presence of an object (YES in step S211) has continued for a predetermined time (step S112). When vibration is detected (YES in step S111) or when an object cannot be detected (NO in step S211), MCU 110 repeats the process from step S108.

When the state of no vibration and the presence of an object continues for a predetermined time (YES in step S112), MCU 110 activates weight sensor 130 to measure the weight of the consumer goods (step S114).

The MCU 110 activates the communication unit 160 and transmits the measured weight to the equipment server 200A (step S118).

The MCU 110 turns off the weight sensor 130 and the communication unit 160, and shifts itself to a sleep state (step S120).
<Fifth Embodiment>

Other devices may perform part or all of the role of each device of the network system 1 of the above-described embodiment. For example, the role of the equipment server 200A and the role of the sales server 200B may be realized by one device, or conversely, the equipment server 200A and the sales server 200B may be realized by a plurality of devices on the cloud. For example, the sales server 200B may be realized by an EC site server, a sales company server, a transportation company server, or the like.

Also, the measurement device 100 may locally take part or all of the roles of the equipment server 200A and the sales server 200B. Alternatively, the communication terminal 300 may acquire the measured weight from the measuring device 100, and the communication terminal 300 may play a part or all of the roles of the equipment server 200A and the sales server 200B.
<Summary>

In the above embodiments, a measuring device is provided that includes a weight sensor for measuring the weight of consumer goods, a vibration sensor for detecting vibration, and a communication unit for transmitting the weight. A weight sensor measures the weight of the consumer goods when vibration is detected by the vibration sensor.

Preferably, the weight of the consumer goods is measured by the weight sensor after a predetermined time has elapsed since the vibration was stopped after the vibration was detected by the vibration sensor.

Preferably, the measuring device further comprises a proximity sensor. A weight sensor measures the weight of the consumer goods when the vibration sensor detects vibration and the proximity sensor detects an object.

Preferably, the measuring device rests on a container of consumer goods and includes a weight sensor and a vibration sensor.

Preferably, the measuring device transmits the measured weight to the management device via the communication unit each time it measures the weight of the consumer goods.

Preferably, the measuring device collectively transmits the measured weight to the management device via the communication unit each time the weight of the consumer goods is measured a predetermined number of times or periodically.

Preferably, the measuring device transmits the measured weight to the management device via the communication unit when the weight of the consumer goods changes by a predetermined amount or more.

Preferably, the measuring device further comprises an output section. The output unit outputs a warning when the amount of change in the weight of the consumer goods is small.

A network system is provided that includes the measuring device described above and a server as the management device described above. When the server determines that the change in the weight of the consumer goods is small, it notifies the communication terminal corresponding to the measuring device of a warning.

A network system is provided that includes the measurement device described above and a communication terminal as the management device described above. A warning is output when the communication terminal determines that the change in the weight of the consumer goods is small.

In the above embodiments, a measuring device is provided comprising a weight sensor for measuring the weight of consumer goods, a proximity sensor for detecting objects, and a communication unit for transmitting the weight. A weight sensor measures the weight of the consumer goods when an object is detected by the proximity sensor.

It should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

1: Network system 100 : Measuring device 120 : Memory 130 : Weight sensor 140 : Vibration sensor 145 : Proximity sensor 150 : Timer 160 : Communication unit 170 : Light 180 : Speaker 190 : Case 200 : Server 200A : Equipment server 200B : Sales server 210: CPU
220: Memory 221: Remaining amount data 240: Operation unit 260: Communication interface 300: Communication terminal 310: CPU
320: Memory 330: Display 340: Operation unit 350: Touch panel 360: Communication interface 370: Speaker 380: Microphone

Claims (11)

a weight sensor for measuring the weight of the consumer goods;
a vibration sensor for detecting vibration;
a communication unit for transmitting weight;
A measuring device, wherein the weight sensor measures the weight of the consumer good when vibration is detected by the vibration sensor. 2. The measuring device according to claim 1, wherein the weight sensor measures the weight of the consumer goods after a predetermined time has passed since the vibration was stopped after the vibration was detected by the vibration sensor. It also has a proximity sensor,
3. The measuring device according to claim 1 or 2, wherein the weight sensor measures the weight of the consumer goods when vibration is detected by the vibration sensor and an object is detected by the proximity sensor. 4. The measuring device according to any one of claims 1 to 3, wherein the container of consumer goods is placed and encloses the weight sensor and the vibration sensor. The measuring device according to any one of claims 1 to 4, which transmits the measured weight to the management device via the communication unit each time the weight of the consumer goods is measured. 5. The method according to any one of claims 1 to 4, wherein each time the weight of the consumer goods is measured a predetermined number of times or periodically, the measured weight is collectively transmitted to the management device via the communication unit. measuring device. 5. The measuring device according to any one of claims 1 to 4, wherein when the weight of said consumer goods changes by a predetermined amount or more, the measured weight is transmitted to a management device via said communication unit. further equipped with an output section,
8. The measuring device according to any one of claims 1 to 7, wherein the output section outputs a warning when the amount of change in the weight of the consumer goods is small. a measuring device according to any one of claims 5 to 7;
A server as the management device according to any one of claims 5 to 7,
A network system, wherein the server notifies a communication terminal corresponding to the measuring device of a warning when the server determines that the change in weight of the consumer goods is small. a measuring device according to any one of claims 5 to 7;
A communication terminal as the management device according to any one of claims 5 to 7,
A network system, wherein the communication terminal outputs a warning when it determines that the change in weight of the consumer goods is small. a weight sensor for measuring the weight of the consumer goods;
a proximity sensor for detecting an object;
a communication unit for transmitting weight;
A measuring device, wherein the weight sensor measures the weight of the consumer good when an object is detected by the proximity sensor.

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