JP7338864B2 - Disposal information recording device, disposal information recording method, program, and recording medium - Google Patents

Description

The present invention relates to a disposal information recording device, a disposal information recording method, a program, and a recording medium.

Conventionally, garbage is disposed of in a designated garbage storage area before the designated collection day, and a collection company collects it by a garbage truck (hereinafter referred to as "collection type"). It has become. On the other hand, in recent years, from the viewpoint of effective use of resources, a new "bring-your-own" type has been advocated instead of the collected type. The bring-your-own type is a form in which each individual brings garbage to a place where staff are present (hereinafter referred to as a "garbage station"). In such a bring-your-own-type garbage station, where the garbage station is used as a place of communication, the above-mentioned staff will instruct the garbage collectors to separate the garbage to deepen their understanding of the environment, and the place including the garbage station will be a local It is thought that it will also be possible to make it a place for people to interact. In order to activate such a garbage station more, for example, if it is possible to know who discarded what and how much when, it would be possible to return according to the contribution of the bringer.

On the other hand, with respect to garbage collection, for example, a used paper collection system has been reported (Patent Publication 1). In this system, the weight of used paper is measured, the point card of the user who cooperated in the collection of used paper is read, points corresponding to the weight are given, and the points can be cashed back at a supermarket or the like.

However, in this system, the object of disposal is limited to one type. In consideration of the environment, the garbage station is also trying to provide garbage bins for each of more than 20 types of detailed classification, such as combustible garbage, plastic garbage, PET bottles, bottles, empty cans, and metals. In the above system, for example, at a garbage station where a large number of trash cans are arranged for each type, it is necessary to read the user's point card and measure the weight of each trash can. and the installation of a weight measuring instrument, and the user is also laborious.

JP-A-2008-146428

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a new apparatus capable of automatically managing the disposal status of a user, for example, at a garbage station where a plurality of trash cans are installed for sorting garbage.

In order to achieve the above object, the disposal information recording device of the present invention comprises:
including an admission information acquisition unit, an increase information acquisition unit, a visitor determination unit, a discard probability estimation unit, a discard amount calculation unit, and a storage unit,
The admission information acquisition unit
Acquire the user's entrance information at the entrance/exit of the trash can placement area,
The admission information includes the identification information of the user and the date and time of admission from the entrance of the user,
The increase information acquisition unit
acquiring garbage increase information for each of a plurality of garbage cans in the garbage placement area;
The increase information includes identification information of the trash can, an increased amount of trash in the trash can, and an increase date and time when the amount of trash in the trash can is increased,
The visitor determination unit
when the information about the increase in the number of trash cans is obtained, determining a user who has entered the area from a point in time before a predetermined time to the date and time of the increase as a stayer in the area where the trash box is placed based on the admission information;
Calculate the elapsed time from the entry date and time of the visitor to the increase date and time of the trash can,
The discard probability estimator,
setting a travel time from the doorway to the trash can based on the distance between the trash can where the amount of trash has increased and the doorway;
generating a probability density function that peaks the travel time;
calculating the probability mass in the elapsed time of each visitor from the probability density function;
Presuming the probability mass ratio of each stayer as the discard probability that each stayer would have discarded the garbage,
The discard amount calculation unit
calculating a divided amount obtained by dividing the increased amount of garbage in the trash box based on the discard probability, and using the divided amount as the discarded amount of each visitor;
The storage unit
The identification information of the visitor, the identification information of the trash can, the disposal amount, and the date and time of increase are stored in association with each other.

The disposal information recording method of the present invention comprises:
The entrance information acquisition step includes an entrance information acquisition step, an increase information acquisition step, a visitor determination step, a discard probability estimation step, a discard amount calculation step, and a storage step,
Acquisition of user entrance information at the entrance/exit of the garbage disposal area of the garbage disposal site,
The admission information includes the identification information of the user and the date and time of admission from the entrance of the user,
The increased information acquisition step includes:
acquiring garbage increase information for each of a plurality of trash cans in the trash can placement area;
The increase information includes identification information of the trash can, an increased amount of trash in the trash can, and an increase date and time when the amount of trash in the trash can is increased,
The visitor determination step includes:
when the information about the increase in the number of trash cans is obtained, determining a user who has entered the area from a point in time before a predetermined time to the date and time of the increase as a stayer in the area where the trash box is placed based on the admission information;
Calculate the elapsed time from the entry date and time of the visitor to the increase date and time of the trash can,
The discard probability estimation step includes:
setting a travel time from the doorway to the trash can based on the distance between the trash can where the amount of trash has increased and the doorway;
generating a probability density function that peaks the travel time;
calculating the probability mass in the elapsed time of each visitor from the probability density function;
Presuming the probability mass ratio of each stayer as the discard probability that each stayer would have discarded the garbage,
The waste amount calculation step includes:
calculating a divided amount obtained by dividing the increased amount of garbage in the trash box based on the discard probability, and using the divided amount as the discarded amount of each visitor;
The storing step includes:
The identification information of the visitor, the identification information of the trash can, the amount of disposal, and the date and time of increase are associated with each other and stored in a storage unit.

A program of the present invention causes a computer to execute the disposal information recording method of the present invention.

A recording medium of the present invention is a computer-readable recording medium recording the program of the present invention.

According to the present invention, for example, in a garbage disposal site where a plurality of garbage cans are installed for sorting garbage, it is possible to automatically manage the disposal status of users. Specifically, the present invention can store estimated information about when, what, and how much each user discarded. It will be possible to provide a service that aims to give back.

FIG. 1 is a block diagram showing an example of a disposal information recording device according to the first embodiment. FIG. 2 is a block diagram showing an example of the hardware configuration of the disposal information recording device according to the first embodiment. FIG. 3 is a flow chart showing an example of the procedure of the disposal information recording method in the first embodiment. FIG. 4 is a table of an example of garbage collection point information stored in a storage unit in the first embodiment. 5 is a graph showing an example of a probability density function in Embodiment 1. FIG. FIG. 6 is a table showing an example of calculation results in the first embodiment.

An embodiment of the present invention will be described. The invention is not limited to the following embodiments. In each figure below, the same reference numerals are given to the same parts. The descriptions of the respective embodiments can refer to each other's descriptions unless otherwise specified. The configuration of each embodiment can be combined unless otherwise specified.

[Embodiment 1]
In describing the present invention, first, an example of a garbage disposal site utilizing the present invention will be described. A garbage disposal site has an area (garbage disposal area) where multiple garbage cans are installed for each type of garbage, and the identification information of users who enter the area to dispose of garbage is detected at the entrance/exit of the area. A detection unit is installed. Each trash can has a measuring unit that measures the amount of trash in the trash can that increases as the trash is discarded. A “user” is a user of the trash box placement area who disposes of trash.

The trash box is not particularly limited, for example, it is not limited to a so-called box shape, and any shape that can accommodate trash may be used. The unit of the amount of dust is not particularly limited, and can be appropriately set according to the type of dust such as weight, volume, number, or the like. The type of the measuring unit is also not particularly limited, and can be appropriately selected according to the unit of the amount of dust, for example. When the amount of dust is weight, the measurement unit is, for example, a weight measurement unit; Volume can also be measured by image analysis. The weight measuring unit is not particularly limited, and is, for example, a scale. When the measuring unit is the weight measuring unit, for example, the total weight may be measured when the weight increases, or the increased weight (increased weight) when the weight increases may be measured. may In the former case, for example, when the weight increases, the difference between the previous weight and the weight at the time of the increase may be calculated. In the following example, the weight change is measured as the change in the amount of dust, but the present invention is not limited to this.

The detection unit is not particularly limited, and can be selected by the administrator of the trash can placement area according to the type of desired identification information. For example, when using an ID card in which an ID is assigned to each user, such as a point card or membership card, a card reader may be installed as the detection unit according to the identification information assignment format of the ID card. can be done. As a specific example, a QR code reader or the like can be used when the identification information is attached to an ID card by, for example, a QR code (registered trademark). The identification information can be obtained by holding the ID card over the card reader. For example, the ID card is not limited to the form of the card itself, and may be in the form of a terminal such as a smart phone or a tablet. Further, when physical features such as a user's face, fingerprints, etc. are used as identification information, a camera can be installed as the detection unit. The identification information of the user can also be obtained by acquiring an image of the user who enters with the camera and analyzing the acquired image data with an image analyzer.

In the present invention, the "entrance" means a position that serves as a reference for determining whether or not the user has entered the trash can placement area. It does not have to be placed. In the present invention, the "entrance" can also be said to be, for example, the place where the detection unit is installed.

Next, embodiments of the present invention will be specifically described. FIG. 1 is a block diagram showing an example configuration of a disposal information recording device 10 of this embodiment. As shown in FIG. 1A, the disposal information recording device 10 includes an entrance information acquisition unit 11, an increase information acquisition unit 12, a visitor determination unit 13, a discard probability estimation unit 14, a discard amount calculation unit 15, and a storage unit. 16. Further, the disposal information recording device 10 may further have an output unit, for example. The disposal information recording device 10 is also called, for example, a disposal information recording system. The disposal information recording device 10 may be, for example, a single device including the above units, or may be a device in which the above units can be connected via a communication network.

The communication network is not particularly limited, and a known communication network can be used, and may be wired or wireless. Examples of the communication network include Internet lines, telephone lines, LANs (Local Area Networks), WiFis (Wireless Fidelity), and the like. The processing of each part of the disposal information recording device 10 may be performed on the cloud.

The disposal information recording device 10 can be used, for example, in a garbage disposal site as described above. Specifically, the disposal information recording device 10 stores the identification information of the user detected by the detection unit installed at the garbage disposal site and the trash can measured by the measurement unit installed in each trash can. By acquiring the information on the amount of increase in the amount of dust in the storage, the process of recording the disposal information can be started. Therefore, the disposal information recording apparatus 10 can be connected to an external device via a communication network 20, for example, as shown in FIG. 1(B). That is, the disposal information recording device 10 includes a QR code reader (detection unit) 30 for detecting a user's QR code (identification information), which is installed at the entrance/exit of the trash box placement area, and each trash box 40 equipped with the measuring device. , can be connected via the communication line network 20 .

When the user enters through the entrance, the QR code reader 30 acquires the identification information of the user and the date and time of entry, outputs the information to the disposal information recording device 10 via the communication network 20, and outputs the information to the disposal information recording device 10. The entrance information acquisition unit 11 of acquires the information. Also, when the user exits through the entrance, the identification information of the user and the date and time of exit are acquired and output to the disposal information recording device 10 via the communication network 20. The entry information acquisition unit 11 may acquire the information. In this embodiment, an example in which a QR code is used as the user's identification information and the QR code reader 30 is used as the detection unit is shown, but the present invention is not limited to these forms.

Further, when the garbage is discarded in the trash can 40, the measuring device acquires the amount of garbage increased and the date and time of the increase, and outputs them to the disposal information recording device 10 along with the identification number of the trash can 40 via the notification line network 20. and the increase information acquisition unit 12 of the disposal information recording device 10 acquires the information.

Next, FIG. 2 illustrates a block diagram of the hardware configuration of the disposal information recording device 10. As shown in FIG. The disposal information recording device 10 has, for example, a CPU (Central Processing Unit) 101, a memory 102, a bus 103, an input device 104, a display 105, a communication device 106, a storage device 107, and the like. Each part of the disposal information recording device 10 is connected to each other via a bus 103 by each interface (I/F).

The CPU 101 is a processor responsible for overall control of the disposal information recording apparatus 10, and is not limited to the CPU, and may be another processor. In the disposal information recording device 10, the CPU 101 executes, for example, the program of the present invention and other programs, and reads and writes various information.

The disposal information recording apparatus 10 can be connected to a communication network, for example, by a communication device 106 connected to the bus 103, and can also be connected to an external device via the communication network. The external device is not particularly limited, and examples thereof include a detector such as the QR code reader 30, a measuring device for the trash can 40, and the like. etc. The terminal is, for example, a tablet, a smart phone, a mobile phone, or the like. The method of connecting the disposal information recording device 10 and the external device is not particularly limited, and may be wired connection or wireless connection, for example. The wired connection may be, for example, a cord connection or a cable connection for using a communication network. The wireless connection may be, for example, a connection using a communication network or a connection using wireless communication. The communication network is not particularly limited, and for example, a known communication network can be used, which is the same as described above.

The memory 102 includes, for example, a main memory, which is also referred to as main memory. When the CPU 101 performs processing, the memory 102 reads various operation programs 108 such as the program of the present invention stored in an auxiliary storage device described later, and the CPU 101 receives data from the memory 102. , executes the program 108 . The main memory is, for example, RAM (random access memory). Memory 102, for example, further includes a ROM (Read Only Memory).

The storage device 107 is also called a so-called auxiliary storage device, for example, in contrast to the main memory (main storage device). The storage device 107 includes, for example, a storage medium and a drive that reads from and writes to the storage medium. The storage medium is not particularly limited, and may be, for example, a built-in type or an external type, and includes HD (hard disk), CD-ROM, CD-R, CD-RW, MO, DVD, flash memory, memory card, and the like. and the drive is not particularly limited. The storage device 107 can also be exemplified by a hard disk drive (HDD) in which a storage medium and a drive are integrated, for example. For example, the storage device 107 stores the program 108 as described above, and the memory 102 reads the operation program 108 from the storage device 107 when the CPU 101 is executed as described above. Also, the storage device 107 includes, for example, the storage unit 16 .

The disposal information recording device 10 may further have an input device 104 and a display 105, for example. The input device 104 is, for example, a scanner, touch panel, keyboard, or the like. Examples of the display 105 include an LED display and a liquid crystal display.

Each part of the disposal information recording device 10 will be described in further detail.

The storage unit 16 stores, for example, user information and trash box information in advance. The user information includes, for example, identification information (user identification information) that identifies the user, and as described later, when information is input from the outside, it is associated with the user identification information and Information is also stored. The trash box information includes, for example, identification information (trash box identification information) identifying a plurality of trash boxes installed at the trash disposal site, the type of trash to be discarded, and position information. When information is input from the outside, the information is also stored in association with the trash can identification information. Further, the information calculated by the processing of the disposal information recording device 10 is also appropriately linked to the user identification information and the trash box identification information and stored.

The user information may, for example, further include personal information, and specific examples thereof include name, address, telephone number, e-mail address, age, sex, and the like.

In the trash box information, the position information may be any information that means the position in the trash box arrangement area, and may be, for example, the distance from the doorway, coordinates, GPS information, or the like.

The entrance information acquisition unit 11 acquires the entrance information of the user at the entrance/exit of the trash can arrangement area. For example, the entrance information acquisition unit 11 may acquire exit information indicating that the user exits from the entrance, and can be called an entrance/exit information acquisition unit 11 . The entry information includes the identification information of the user and the date and time of entry from the entrance of the user, and the exit information includes the identification information of the user and the date and time of exit from the entrance of the user. The entrance information and the exit information are input from the QR code reader 30 via the communication network 20, for example, as described above. The acquired information is stored in the storage unit 16 in association with the user identification information, for example.

The increase information acquisition unit 12 acquires the increase information of garbage for each of the plurality of trash cans in the trash can arrangement area. The increase information includes the identification information of the trash can, the increased amount of trash in the trash can, and the date and time when the amount of trash in the trash box increased. The increase information is input from the corresponding trash can 40 via the communication network 20 as described above, for example, when the amount of trash increases due to disposal of trash in any of the plurality of trash cans. The acquired information is stored in the storage unit 16 in association with the trash can identification information, for example.

Upon acquiring the information about the increase in the number of trash cans, the sojourner determination unit 13 determines, based on the entrance information, that users who have entered the space between the point of time going back a predetermined time period and the time and date of increase of the number of trash cans are residents of the area where the trash cans are arranged. The time elapsed from the date and time of entry of the visitor to the date and time of the increase in the trash can is calculated, and the predetermined time is not particularly limited. Any time can be set. The predetermined time may be set for each garbage disposal site because, for example, the size of the area where a plurality of trash cans are arranged differs for each garbage disposal site. In addition, as described above, if exit information of visitors is also acquired, users who have entered by the increased date and time and have not left by the increased date and time may be determined as staying guests. .

A discard probability estimating unit 14 sets the travel time from the entrance to the trash can based on the distance between the trash bin with increased amount of trash and the entrance, and generates a probability density function that peaks at the travel time. Then, from the probability density function, the probability mass in the elapsed time of each visitor is calculated, and the probability mass ratio of each visitor is estimated as the disposal probability that each visitor would have discarded the garbage.

The distance between the trash can and the entrance/exit may be set in advance or calculated by the discard probability estimating section 14, for example. As described above, if the storage unit 16 stores the distance from the entrance as the position information, this information can be called and used. Also. If the storage unit 16 stores coordinates, GPS information, etc. as the position information, this information may be called up to convert the distance.

The travel time from the entrance to the trash can may be set in advance or calculated by the discard probability estimation unit 14, for example. Since movement within the trash box placement area is usually done on foot, the travel time can be set based on, for example, a general walking speed (eg, 80 m/min) and the distance between the trash can and the doorway.

The type of the probability density function is not particularly limited, and is, for example, a Gaussian type in which the moving time peaks, and a specific example thereof is Rayleigh distribution.

The discard amount calculation unit 15 calculates a divided amount obtained by dividing the increased amount of garbage in the trash box based on the discard probability, and uses the divided amount as the discard amount of each visitor. Then, the storage unit 16 associates and stores the identification information of the visitor, the identification information of the trash can, the disposal amount, and the date and time of increase.

In the present invention, the probability mass ratio of each visitor calculated from the probability density function is estimated as the discard probability that each visitor would have discarded the garbage, and based on the discard probability, The increased amount of garbage in the trash box is apportioned to each stayer. Therefore, if there is more than one resident, it does not mean that the person who actually discarded the garbage has been identified. However, the present invention does not aim to accurately identify the person who actually discarded the garbage for a single garbage disposal. According to the present invention, for example, by accumulating the information obtained in this way, in a garbage disposal site where a plurality of classifications are performed, an objective evaluation of each user in all of a plurality of users can be performed within a certain period of time. The usage frequency can be easily estimated. For example, if only the travel time from the entrance to the trash can is simply used, the user who indicates the entry date and time that is closest to the travel time from the increase date and time when the amount of trash in the trash can increases is the trash disposal person. is identified. However, in this identification, one person is always selected, so if there is a user with a close entry date and time, it will be either 100% correct or 100% wrong. is likely to be lower. On the other hand, according to the present invention, unless the resident is alone, based on the probability mass ratio, the increased amount of garbage that could have been discarded by one person is proportionally divided by the resident. Misjudgment such as 100% error can be prevented. And since the same apportionment is performed each time garbage is discarded, for example, there is a possibility that the apportioned amount of waste will be distributed even though it is not actually disposed of, but in reality Even if it is discarded, there is a possibility that part of it will be distributed proportionally to other residents. For this reason, when the information on the amount of waste distributed proportionally is accumulated in this way, the total amount of waste becomes relatively large as the frequency of actual use increases, so that it is possible to obtain usage information with high reliability as a whole. It can be said that By obtaining such usage information of users, for example, coupons, service coupons, etc., can be returned according to usage, and furthermore, users are encouraged to voluntarily bring them in, promoting the circulation of resources. It becomes possible to plan

The disposal information recording method of the present invention uses, for example, the storage unit as described above, and includes the entrance information acquiring step, the increase information acquiring step, the visitor determining step, the discard probability estimating step, the discard amount calculating step, and the storing step. including. Note that the description of the disposal information recording apparatus of the present invention can be used unless otherwise indicated.

The entrance information obtaining step is a step of obtaining the entrance information of the user at the entrance/exit of the trash can placement area, and can be executed by the entrance information obtaining section 11 of the disposal information recording device 10, for example.

The increase information acquisition step is a step of acquiring garbage increase information for each of a plurality of trash cans in the trash can arrangement area, and can be executed by the increase information acquisition unit 12 of the disposal information recording device 10, for example.

In the sojourner determination step, when the information on the increase in the number of trash cans is acquired, a user who has entered the area from a point in time preceding a predetermined time period to the time and date of the increase is determined to be a stayer in the area where the trash cans are placed based on the entrance information. This is a step of calculating the elapsed time from the entry date and time of the visitor to the increase date and time of the trash can.

The discard probability estimating step sets a travel time from the entrance to the trash can based on the distance between the trash can where the amount of trash has increased and the entrance, and generates a probability density function at which the travel time peaks. and calculating the probability mass in the elapsed time of each visitor from the probability density function, and estimating the probability mass ratio of each visitor as the disposal probability that each visitor would have discarded the garbage. Yes, for example, it can be executed by the discard probability estimation unit 14 of the discard information recording device 10 .

The discard amount calculation step is a step of calculating a divided amount obtained by dividing the increased amount of garbage in the trash box based on the discard probability, and using the divided amount as the discard amount of each visitor. , can be executed by the discard amount calculation unit 15 of the discard information recording device 10 .

The storing step is a step of linking the identification information of the visitor, the identification information of the trash can, the amount of waste, and the date and time of increase, and storing them in a storage unit. can be executed by the storage unit 16 of

Next, the disposal information recording method of this embodiment will be described using the flowchart of FIG. The disposal information recording method of this embodiment can be implemented, for example, by using the disposal information recording apparatus 10 shown in FIGS. The disposal information recording method of this embodiment is not limited to the use of the disposal information recording device 10 .

First, the user information and the trash box information are stored in advance in the storage unit 16 of the disposal information recording device 10 . As shown in FIG. 4A, for example, the trash box information is stored in association with the trash box identification information, the type of trash, and the location information.

Then, the entry information of the user is acquired over time from the detection unit of the trash can placement area (S101). As a result, for example, as shown in FIG. 4B, the user's admission information is stored in association with the user identification information and the date and time of admission.

On the other hand, when the weight of each trash box in the trash box arrangement area increases due to disposal of trash, the increase information is obtained (S102). As a result, for example, as shown in FIG. 4C, the increase information for each trash can is stored in association with the date and time of increase, the trash can identification information, and the increased weight.

The subsequent flow will be described using the latest increase information surrounded by a thick frame in FIG. 4(C) as an example. As for the trash can (ID002, plastic), information about a weight increase of 100 g was obtained at 10:10:01, so a resident for disposal of this plastic trash is selected. That is, first, a user who indicates the admission date and time is selected as a stayer during a predetermined period of time before the increase date and time (S103). If the predetermined time is 30 minutes, the additional time is 10:10:01, so the user who shows the entry date and time after 09:40:01 becomes the stayer. In the case of FIG. 4B, user IDs A, B, and C surrounded by thick frames are selected as visitors. For these visitors, the elapsed time from the admission date and time to the increase date and time is calculated (S104). Visitors A, B, and C are 10 seconds, 5 seconds, and 1 second, respectively.

Next, the travel time from the doorway to the heavy trash can is calculated (S105). Since the trash box ID002 stores the position information shown in FIG. 4A in the storage unit 16, the distance from the entrance to the trash box (ID002, plastic) is calculated. In this example, it is assumed to be 5 m. Since it is reported that the average walking speed of a person is 80 m/min, the travel time from the doorway to the trash can is calculated to be 3.75 seconds.

Next, generate a probability density function that peaks the travel time. When the probability density function is a Rayleigh distribution, for example, a function as shown in FIG. 5A is generated. In FIG. 5A, the x-axis is the travel time, the y-axis is the probability density, and the solid line is the function peaking at the travel time of 3.75 seconds. Note that, in this example, as an example for trash cans with different distances, the functions are also shown in FIG. 5(A). Also, the formula for the Rayleigh distribution is shown below. In the formula, σ is the moving time set for the peak.

Then, from the probability density function, the probability mass in the elapsed time of each visitor is calculated (S107). The probability mass can be obtained, for example, by definite integration of an area with an arbitrary width (integration interval) based on the elapsed time. The arbitrary width (integration interval) is not particularly limited, and may be, for example, 0.5 seconds, 1 second, or 1.5 seconds, and the elapsed time may be set at the starting point of the width, for example. may be set as the end point or the intermediate point. In this example, as shown in FIG. 5B, the area (probability mass) of the colored region is calculated by definite integration, with the elapsed time of the visitor set as the starting point and the integration interval set to 1 second. The results are shown in FIG. As shown in FIG. 6, when the probability masses are calculated for each of the visitors A, B, and C, the ratio of these probability masses is converted to the discard probability (S108). The discard probability may be expressed, for example, as a relative value of the probability mass of each visitor with respect to the sum of the probability masses of all visitors. In FIG. 6, the drop probability indicates a relative value with the sum being one.

Next, the increased weight is divided for each visitor by the discard probability (S109), and the divided weight is stored in the storage unit 16 as the discard amount for each visitor (S110). Since the increased weight of the trash can (ID002, plastic) is 100 g, the disposal amounts of residents A, B, and C are 6 g, 54 g, and 40 g, respectively, as shown in FIG. . These results are stored in association with user identification information, trash can identification information, and the like.

(Modification 1)
As for the travel time from the doorway to the garbage can, an example of using a general walking speed was given, but it is not limited to this. The walking speed can be set, for example, for each user or for each attribute of the user. As a specific example, a speed slower than the average walking speed can be set for attributes such as elderly people and those with children. Also, if the town that uses a particular landfill site has a high average age, for example, a walking speed slower than the average walking speed can be set for the attribute that uses that town as an address. In addition, as described above, since it is possible to obtain information on the date and time of both entry and exit, it is possible to set the walking speed for each user based on the accumulated information.

(Modification 2)
An example was given in which the ratio between visitors was obtained directly from the probability mass and used as the discard probability, but the present invention is not limited to this. A discard probability can also be calculated. By accumulating the history of use of the trash can placement area, information can be obtained, for example, about people who use the trash can relatively frequently or less frequently, people who dispose of a specific type of trash frequently or infrequently, and the like. For this reason, for example, a heavy weight is given to a person who uses frequently, a small weight is given to a person who uses infrequently, and a large weight is given to a person who often discards a specific type of garbage in the case of a specific type of garbage. etc. is possible.

[Embodiment 2]
A program of the present embodiment is a program capable of executing the disposal information recording method of the present invention on a computer. Alternatively, the program of this embodiment may be recorded on a computer-readable recording medium, for example. The recording medium is not particularly limited, and includes, for example, the above-described storage medium.

Although the present invention has been described with reference to the embodiments, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

According to the present invention, for example, in a garbage disposal site where a plurality of garbage cans are installed for sorting garbage, it is possible to automatically manage the disposal status of users. Specifically, the present invention can store estimated information about when, what, and how much each user discarded. It will be possible to provide a service that aims to give back.

10 discard information recording device 11 entrance information acquisition unit 12 increase information acquisition unit 13 visitor determination unit 14 discard probability estimation unit 15 discard amount calculation unit 16 storage unit

Claims (10)

including an admission information acquisition unit, an increase information acquisition unit, a visitor determination unit, a discard probability estimation unit, a discard amount calculation unit, and a storage unit,
The admission information acquisition unit
Acquire the user's entrance information at the entrance/exit of the trash can placement area,
The admission information includes the identification information of the user and the date and time of admission from the entrance of the user,
The increase information acquisition unit
acquiring garbage increase information for each of a plurality of trash cans in the trash can placement area;
The increase information includes identification information of the trash can, an increased amount of trash in the trash can, and an increase date and time when the amount of trash in the trash can is increased,
The visitor determination unit
when the information about the increase in the number of trash cans is obtained, determining a user who has entered the area from a point in time before a predetermined time to the date and time of the increase as a stayer in the area where the trash box is placed based on the admission information;
Calculate the elapsed time from the entry date and time of the visitor to the increase date and time of the trash can,
The discard probability estimator,
setting a travel time from the doorway to the trash can based on the distance between the trash can where the amount of trash has increased and the doorway;
generating a probability density function that peaks the travel time;
calculating the probability mass in the elapsed time of each visitor from the probability density function;
Presuming the probability mass ratio of each stayer as the discard probability that each stayer would have discarded the garbage,
The discard amount calculation unit
calculating a divided amount obtained by dividing the increased amount of garbage in the trash box based on the discard probability, and using the divided amount as the discarded amount of each of the residents;
The storage unit
A disposal information recording device, characterized in that the identification information of the visitor, the identification information of the trash can, the amount of disposal, and the date and time of increase are linked and stored. The storage unit stores user information and trash box information in advance,
The trash can information is
including, for each trash can, identification information, location information, and information about the type of trash to be discarded;
The user information is
2. The disposal information recording device according to claim 1, further comprising user identification information. The entrance information acquisition unit further acquires exit information,
The exit information includes the identification information of the user and the date and time of exit from the entrance of the user who entered,
3. The visitor determination unit according to claim 1 or 2, wherein a user who has entered by said increase date and time and who has not left by said increase date and time is determined as a stayer in said trash box placement area from said admission information. disposal information recording device. 4. The discard probability estimator according to any one of claims 1 to 3, wherein the discard probability estimating unit sets the travel time from the entrance to the trash can from the distance between the trash can and the entrance and a predetermined walking speed. Disposal information recording device described. including an admission information acquisition step, an increase information acquisition step, a visitor determination step, a discard probability estimation step, a discard amount calculation step, and a storage step;
The admission information acquisition step includes:
Acquire the user's entrance information at the entrance/exit of the trash can placement area,
The admission information includes the identification information of the user and the date and time of admission from the entrance of the user,
The increased information acquisition step includes:
acquiring garbage increase information for each of a plurality of trash cans in the trash can placement area;
The increase information includes identification information of the trash can, an increased amount of trash in the trash can, and an increase date and time when the amount of trash in the trash can is increased,
The visitor determination step includes:
when the information about the increase in the number of trash cans is obtained, determining a user who has entered the area from a point in time before a predetermined time to the date and time of the increase as a stayer in the area where the trash box is placed based on the admission information;
Calculate the elapsed time from the entry date and time of the visitor to the increase date and time of the trash can,
The discard probability estimation step includes:
setting a travel time from the doorway to the trash can based on the distance between the trash can where the amount of trash has increased and the doorway;
generating a probability density function that peaks the travel time;
calculating the probability mass in the elapsed time of each visitor from the probability density function;
Presuming the probability mass ratio of each stayer as the discard probability that each stayer would have discarded the garbage,
The waste amount calculation step includes:
calculating a divided amount obtained by dividing the increased amount of garbage in the trash box based on the discard probability, and using the divided amount as the discarded amount of each visitor;
The storing step includes:
linking the identification information of the visitor, the identification information of the trash can, the amount of waste, and the date and time of increase, and storing them in a storage unit ;
A disposal information recording method , wherein each of the steps is executed by a computer . The storage unit stores user information and trash box information in advance,
The trash can information is
including, for each trash can, identification information, location information, and information about the type of trash to be discarded;
The user information is
6. The disposal information recording method according to claim 5, wherein the identification information of the user is included. The entrance information acquisition step further acquires exit information,
The exit information includes the identification information of the user and the date and time of exit from the entrance of the user who entered,
7. The step of judging a stayer determines a user who has entered by said increase date and time and who has not left by said increase date and time to be a stayer in said trash box placement area based on said admission information. disposal information recording method. 8. The method according to any one of claims 5 to 7, wherein the discard probability estimation step sets the travel time from the entrance to the trash can from the distance between the trash can and the doorway and a predetermined walking speed. Described disposal information recording method. A program for causing a computer to execute each step of the disposal information recording method according to any one of claims 5 to 8. A computer-readable recording medium recording the program according to claim 9 .

Images