Emissions measurement device, emissions measurement method, and program

Abstract

To enable easy and accurate grasping of the discharge amount of greenhouse gas accompanying the movement of members of a small-scale consumer such as a general household having each subscriber terminal device.SOLUTION: Disclosed is a discharge amount measuring device 1 for measuring the discharge amount of greenhouse gas accompanying the movement of an individual, which includes the steps of: collecting the position information on the individual from a subscriber terminal device 2; specifying a moving route and the moving means of the individual based on changes over time in the collected location information; and calculating the discharge amount of the greenhouse gas accompanying the movement based on the specified moving route and the moving means.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an emission measurement device, an emission measurement method, and a program. [Background technology]

[0002] Reducing greenhouse gas emissions, such as CO2, which are believed to be a contributing factor to global climate change, is a pressing issue today. To effectively curb greenhouse gas emissions, countries and companies have adopted emissions trading systems (also known as "emissions trading schemes"; the term "emissions trading" is used in this specification). These systems allocate CO2 and other greenhouse gas emission allowances to each country or company, and allow countries or companies that exceed their allowances to trade these allowances with countries or companies that have surplus allowances. To date, emissions trading systems have primarily been used by large companies that emit large amounts of greenhouse gases. However, in recent years, changes in the global environment have necessitated further acceleration of greenhouse gas emission reductions. This has led to calls for promoting CO2 emission reductions at smaller scales, such as at households. To this end, a key issue is how to increase incentives for households to reduce CO2 emissions.

[0003] From this perspective, a system is needed that allows even ordinary households to easily and accurately grasp greenhouse gas emissions. For example, Patent Document 1 proposes a configuration that automatically calculates greenhouse gas emissions along a travel route for transportation users who wish to offset their carbon footprint, and a technology that prevents emissions from being counted in duplicate with other systems when calculating greenhouse gas emissions for each section of the route. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-108512 Summary of the Invention [Problem to be solved by the invention]

[0005] However, because Patent Document 1 is configured to calculate greenhouse gas emissions for each section of a transportation facility in accordance with route information created by a route creation means, it has the problem of being unable to calculate greenhouse gas emissions when traveling by transportation means such as walking, bicycle, etc. In other words, while the amount of greenhouse gas emitted when traveling by foot is zero, in such a case it is not possible to calculate the extent to which greenhouse gas emissions can be reduced compared to when traveling the same section using other transportation means.

[0006] In order to solve the above problems and other problems, one object of the present invention is to provide an emission measurement device, an emission measurement method, and a program that enable simple and accurate calculation of greenhouse gas emissions when an individual moves. [Means for solving the problem]

[0007] One aspect of the present invention is an emissions measurement device for measuring greenhouse gas emissions associated with the movement of an individual, which includes a processing unit that collects location information of the individual, identifies the individual's travel route and means of transportation based on changes over time in the collected location information, and calculates the greenhouse gas emissions associated with the movement based on the identified travel route and means of transportation. [Effects of the Invention]

[0008] According to the present invention, it is possible to simply and accurately calculate the amount of greenhouse gases emitted when an individual moves. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a system configuration diagram illustrating an example of the overall configuration of a discharge amount measurement system according to an embodiment of the present invention. [Figure 2]1 is a block diagram illustrating the hardware configuration and functions of a discharge amount measuring device according to an embodiment of the present invention. [Figure 3] 2 is a block diagram illustrating the hardware configuration and functions of a subscriber terminal device according to an embodiment of the present invention. FIG. [Figure 4] FIG. 10 is a diagram illustrating a configuration example of a subscriber emission amount storage unit of the emission amount measuring device. [Figure 5] FIG. 10 is a diagram illustrating an example of the configuration of a subscriber information storage unit of the emission amount measuring device. [Figure 6] 4 is a flowchart illustrating data processing by the emission measurement device according to one embodiment of the present invention. [Figure 7] FIG. 4 is a sequence diagram illustrating data processing by a discharge amount measuring device and a subscriber terminal device according to an embodiment of the present invention. [Figure 8] FIG. 10 is a diagram showing an example of a display screen of a subscriber terminal device. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, the present invention will be described based on an embodiment thereof with reference to the accompanying drawings.

[0011] <Emissions measurement system> FIG. 1 illustrates an example of the overall configuration of an emission measurement system S according to an embodiment of the present invention. The emission measurement system S illustrated in FIG. 1 comprises an emission measurement device 1 and a subscriber terminal device 2 connected to each other so that they can communicate with each other via a network 3. The network 3 can be configured to include various communication networks such as the Internet, a WAN, a LAN, and a mobile communication network. The emission measurement device 1 and the subscriber terminal device 2 are each configured as a computer having a communication function. The subscriber terminal device 2 is particularly preferably configured as a personal device such as a smartphone or a tablet terminal. The emission measurement device 1 may be configured as a cloud computing system consisting of multiple nodes distributed over the network 3.

[0012] In the emission measurement system S of Figure 1, the emission measurement device 1 receives location information indicating the current location of each subscriber terminal device 2 from each subscriber terminal device 2, and determines how each subscriber terminal device 2 is moving based on changes in the received location information. In other words, the emission measurement device 1 continuously monitors the movement status of each subscriber who is active and carries a subscriber terminal device 2. The emission measurement device 1 measures the amount of greenhouse gas emissions emitted as each subscriber moves, based on the movement status of each subscriber. The emission measurement device 1 can also be provided with a function to aggregate the greenhouse gas emissions calculated for each subscriber in order to enter into emissions trading.

[0013] Meanwhile, the subscriber terminal device 2 measures its own position based on positioning signals from positioning satellites such as the Global Positioning System (GPS), radio waves received from mobile communication base stations, and the like, and transmits the results as location information (information including latitude, longitude, altitude, and time) to the emission measurement device 1 via the network 3. The subscriber terminal device 2 also requests data on greenhouse gas emissions associated with the movement of the subscriber terminal device 2, which the emission measurement device 1 has calculated based on the location information, from the emission measurement device 1. Upon receiving the request, the emission measurement device 1 transmits the emission data to the requesting subscriber terminal device 2. By knowing the amount of greenhouse gas emissions associated with movement that is returned to the subscriber terminal device 2 that the subscriber is using, the subscriber's motivation to reduce emissions can be increased.

[0014] The configurations of the emission measurement device 1 and subscriber terminal device 2 that make up the emission measurement system S of this embodiment, and the data processing they perform, will be described later with reference to diagrams and the like relating to data processing flow examples and data processing sequence examples. For simplicity, hereinafter in this specification, "greenhouse gas" will be referred to as "CO2," which is the representative component. Furthermore, for simplicity, the amount of greenhouse gas reduced by each small-scale consumer will be referred to as "CO2 emissions (or simply "emissions" if not unclear)" or "emission allowances" as the trading target.

[0015] <Emissions measuring device 1> Fig. 2 is a block diagram illustrating the hardware configuration and functions of the emission amount measuring device 1 of this embodiment. In Fig. 2, the emission amount measuring device 1 includes a processor 11 such as a CPU or a GPU, a memory 12 having storage devices such as a ROM or a RAM, an auxiliary storage unit 13 having storage devices such as an HDD or an SSD, an input / output unit 14 having input devices such as a keyboard, a touch panel, a mouse, a microphone, and an output device such as a monitor display, a speaker, a printer, a data interface unit (data IF unit) 15 that transmits and receives data between each hardware unit, and a communication unit 16 that communicates with the network 3.

[0016] The subscriber terminal device 2, which will be described later, can also be basically configured as a computer having the hardware configuration exemplified in FIG.

[0017] Next, the functions of the emission amount measuring device 1 according to this embodiment will be described again with reference to Fig. 2. The emission amount measuring device 1 has functional blocks of a location information analysis unit 121, a movement route analysis unit 122, an emission amount calculation unit 123, and an emission amount data provision unit 124. These functional blocks are realized by the processor 11 in Fig. 2 executing the corresponding programs, and each program can be configured to be stored in the auxiliary storage unit 13 and read into the memory 12 by the processor 11 for execution.

[0018] The data used by the above functional blocks is stored in the subscriber emission amount storage unit 131, the subscriber information storage unit 132, and the analysis data storage unit 133, which are data storage areas provided in the auxiliary storage unit 13. As illustrated in FIG. 2, the subscriber emission amount storage unit 131 and the subscriber information storage unit 132 are stored for each subscriber terminal device 2, such as subscriber X and subscriber Y. This is to grasp the CO2 emissions associated with movement for each subscriber who owns a subscriber terminal device 2. Each subscriber can be further grouped into a unit called a small-scale consumer. As an example, in a four-person household consisting of parents and two children, each person owns a smartphone as a subscriber terminal device 2 and is each subscribed to the emission measurement system S of this embodiment, the household is considered a small-scale consumer including four subscribers. By recording the emissions associated with movement for each subscriber in this way, emission transfers within the small-scale consumer become possible. Note that each data storage area will be described later with examples.

[0019] The location information analysis unit 121 has a function of analyzing the movement status of each subscriber terminal device 2 based on the location information received from that subscriber terminal device 2. Specifically, the location information analysis unit 121 acquires the movement route and movement speed of each subscriber terminal device 2 from changes in the position of each subscriber terminal device 2 over time.

[0020] The movement route analysis unit 122 has the function of identifying the means of transportation used by each subscriber terminal device 2 to move along the movement route, based on the movement route and movement speed of each subscriber terminal device 2 obtained by the location information analysis unit 121.

[0021] (1) Travel by foot or bicycle When a subscriber carrying a subscriber terminal device 2 travels on foot or by bicycle, the travel route analysis unit 122 can refer to map information, etc. obtained from an external device via the network 3, and determine that the subscriber's location information is outside the specified transportation route, and based on the movement speed of the subscriber terminal device 2 indicated by the change in location information, can determine that the subscriber is using either walking or bicycle as their means of transportation.

[0022] (2) Travel by public transportation The travel route analysis unit 122 can identify that the subscriber carrying the subscriber terminal device 2 is traveling by public transportation such as train, bus, or airplane by comparing changes in location information and travel speed from the subscriber terminal device 2 with route information, operating time information, etc. of public transportation acquired from an external device via the network 3. In this case, the accuracy of identifying the means of travel can be improved by collating payment information such as the subscriber's credit card information, IC card ticket information, and barcode payment information with the time information included in the location information.

[0023] (3) Travel by car The movement route analysis unit 122 can identify whether the subscriber who owns the subscriber terminal device 2 is traveling by automobile, such as a private car or a taxi, by comparing the changes in the location information and movement speed from the subscriber terminal device 2 with map information and the like obtained from an external device via the network 3. In this case, by comparing the subscriber's payment information, such as credit card information, IC card ticket information, and barcode payment information, with the time information included in the location information, it is possible to improve the accuracy of identifying the means of transportation, such as whether the subscriber is traveling by taxi.

[0024] The emission calculation unit 123 has a function of calculating the amount of CO2 emissions associated with the movement of each subscriber terminal device 2, by applying the unit greenhouse gas emission data for each mode of transportation stored in the analysis data storage unit 133 to the movement route and mode of transportation of each subscriber terminal device 2 identified by the movement route analysis unit 122. The analysis data storage unit 133 can be realized, for example, as a table storing CO2 emissions for each type of transportation. For example, the Tokyo Metropolitan Government Bureau of Environment's webpage (URL: https: / / www.kankyo.metro.tokyo.lg.jp / vehicle / management / tokyo / transportation.html) has an entry titled "Types of Transportation and CO2 Emissions," which lists examples of the weight (grams) of CO2 emitted to transport one person one kilometer for walking, bicycle, train, bus, airplane, and private passenger car. For private cars, the CO2 emissions corresponding to the model and year of the car owned by the subscriber may be stored in advance.

[0025] Specifically, the emission calculation unit 123 records, as emission data, CO2 emissions when members of a small-scale consumer (such as a family member of an ordinary household) who use the subscriber terminal device 2 move geographically by various means of transportation, in the subscriber emission storage unit 131. As described above, people move by various means of transportation, from walking and bicycles to cars, trains, buses, taxis, and airplanes, and the amount of CO2 emissions varies depending on the means of transportation. Based on the travel route and means of transportation identified by the travel route analysis unit 122, the emission calculation unit 123 calculates CO2 emissions using the CO2 emissions per unit travel distance or travel time that are preset for each means of transportation, and records the calculated CO2 emissions in the subscriber emission storage unit 131.

[0026] FIG. 4 shows an example of the configuration of the subscriber emission storage unit 131. The data in the subscriber emission storage unit 131 shown in FIG. 4 includes the date of travel, the starting and ending points of travel, the means of travel, and emissions, all associated with an ID, which is an identification code for each record. In this embodiment, for each travel route, the CO2 emissions resulting from travel using the means of travel that provides the shortest time for that route are used as a reference, and the difference between this and the CO2 emissions resulting from travel using a means of travel with lower CO2 emissions is calculated, and this difference is recorded as reduced CO2 emissions (negative emissions). For example, in FIG. 4, in the case of "traveling by train from Station A to Station B," the difference is recorded as 100 g less CO2 emissions than traveling the same distance by car, which is faster. For "traveling from Post Office C to Supermarket D," the difference is 0 because the fastest means of travel was traveled by car. For "traveling from Supermarket D to Bookstore E," the CO2 emissions are 0 because the travel was by foot, and the difference is large compared to traveling using the fastest means of travel (e.g., a private car). In this way, the more people use means of transportation that emit less CO2 and place less strain on the environment, the more CO2 emissions are reduced, which can increase motivation to reduce CO2 emissions at home, etc.

[0027] The subscriber information storage unit 132 stores subscriber information about each subscriber. FIG. 5 shows an example of the subscriber information stored in the subscriber information storage unit 132. The subscriber information includes various information necessary for the emission measurement device 1 to register each subscriber in the emission measurement system S to enable emission measurement and to acquire and tally CO2 emissions associated with each subscriber's travel. In the example of FIG. 5, the subscriber information includes terminal identification information used by the emission measurement device 1 to identify each subscriber, credit card information for tracking the subscriber's use of public transportation, payment information such as barcode payment information, IC card ticket information, route search app linkage information, owned vehicle information (e.g., car model, year, etc.), and home and workplace address information used to determine whether CO2 emissions associated with travel should be recorded in the system S. The subscriber information is not limited to the above information and may include other necessary information, such as a password for ensuring information security between the emission measurement device 1 and the system, biometric authentication information, etc.

[0028] As described above, the subscriber's home and work address information is used to identify to which organization the subscriber belongs the CO2 emissions associated with travel should be recorded. A subscriber may belong to multiple organizations (e.g., the company where the subscriber works, school, etc.), and each organization may calculate and aggregate CO2 emissions. For example, if a subscriber is an employee of a company, the subscriber may calculate and aggregate CO2 emissions individually using the subscriber terminal device 2, while the company or other organization where the subscriber works may also aggregate CO2 emissions associated with travel for business trips, official outings, etc. In such cases, if the CO2 emissions associated with personal travel and the CO2 emissions recorded by the company or other organization are aggregated in duplicate, it will be impossible to accurately determine each subscriber's CO2 emissions. Therefore, in this embodiment, the subscriber's home address and other addresses, such as the subscriber's workplace or school, are used to prevent duplicate aggregation of CO2 emissions. Specifically, for example, CO2 emissions during commutes from home to work, based on location information from subscriber terminal device 2, can be counted as the subscriber's CO2 emissions, while travel from arrival at work until leaving work is not counted in the emissions trading intermediary system S. The method for avoiding duplicate counting of CO2 emissions is not limited to this example, and other arrangements and methods are also possible, such as not counting CO2 emissions associated with travel on work or school days.

[0029] The emission data providing unit 124 has the function of extracting records of CO2 emissions associated with movement over a specified period from the subscriber emission memory unit 131 in response to a request from the subscriber terminal device 2 of a small-scale consumer, and providing the records to the requesting subscriber terminal device 2.

[0030] As described above, the analysis data storage unit 133 stores data used by the emission calculation unit 123 to calculate CO2 emissions based on the identified travel route and means of travel, for example, data on CO2 emissions per unit time or unit travel distance for each C means of travel, in an appropriate data format.

[0031] <Subscriber terminal device 2> Next, the subscriber terminal device 2 will be described. Fig. 3 is a block diagram illustrating the hardware configuration and functions of the subscriber terminal device 2 of this embodiment. In Fig. 3, the subscriber terminal device 2, like the emission amount measuring device 1 described above, includes a processor 21, a memory 22, an auxiliary storage unit 23, an input / output unit 24, a data IF unit 25, and a communication unit 26.

[0032] Next, the functions of the subscriber terminal device 2 will be described again with reference to Fig. 3. The subscriber terminal device 2 has the functional blocks of a location information transmission unit 221 and an emission amount management unit 222. These functional blocks are realized by the processor 21 in Fig. 3 executing the corresponding programs, and each program can be stored in the auxiliary storage unit 23 and read into the memory 22 by the processor 21 for execution.

[0033] The data used by the above-mentioned functional blocks is stored in a discharge amount storage unit 231 and a subscriber information storage unit 232, which are data storage areas provided in the auxiliary storage unit 23.

[0034] The location information transmission unit 221 has a function of calculating location information (latitude, longitude, altitude, time) indicating the location of the subscriber terminal device 2 from a positioning signal received from a positioning satellite such as a GPS, and transmitting the information to the emission measuring device 1 via the network 3. The timing of transmitting the location information may be determined appropriately. For example, the location information transmission unit 221 can be set to transmit the location information to the emission measuring device 1 every minute.

[0035] The emission management unit 222 has a function of acquiring from the emission measurement device 1 and recording data on the amount of CO2 emissions associated with movement, which data is calculated for the subscriber terminal device 2 by the emission measurement device 1.

[0036] The emission amount storage unit 231 stores data that has been acquired and recorded regarding the CO2 emissions relating to the movement of the subscriber terminal device 2, which has been acquired from the emission amount measuring device 1. The data stored in the emission amount storage unit 231 corresponds to the data recorded in the subscriber emission amount storage unit 131 of the emission measuring device 1.

[0037] The subscriber information storage unit 232 stores information about the subscriber of the subscriber terminal device 2, and corresponds to the data in the subscriber information storage unit 131 in the emission measuring device 1. When a change occurs in the subscriber information registered in the emission measuring device 1, each subscriber can request the emission measuring device 1 to register the change through the emission management unit 222.

[0038] <Data processing by the emission measurement device 1 and the subscriber terminal device 2> Next, the data processing executed by the emission amount measuring device 1 and the subscriber terminal device 2 in the present embodiment described above will be described.

[0039] <<Data processing by emission measurement device 1>> First, the data processing executed by the location information analysis unit 121, movement route analysis unit 122, emission calculation unit 123, and emission data provision unit 124 of the emission measurement device 1 having the configuration and functions described above will be described with reference to Fig. 6. Fig. 6 is a flowchart showing an example of data processing by the emission measurement device 1. The emission measurement device 1 aggregates CO2 emissions associated with movement in small-scale consumers such as ordinary households equipped with subscriber terminal devices 2, and provides the CO2 emissions recorded for each subscriber terminal device 2 to the small-scale consumers via each subscriber terminal device 2, thereby increasing the motivation of each small-scale consumer to change their lifestyle, including their energy consumption, to a carbon-free one. Furthermore, the CO2 emissions associated with movement aggregated by the emission measurement device 1 may be exchanged for compensation in emissions trading.

[0040] 6, in step S1, the emission measuring device 1 executes the following processing steps for each subscriber terminal device 2. In the data processing in FIG. 6, it is assumed that the subscriber terminal device 2 has completed the login processing required to exchange data with the emission measuring device 1.

[0041] In step S2, the location information analysis unit 121 receives the location information from one of the subscriber terminal devices 2.

[0042] In step S3, based on the acquired location information, the movement route analysis unit 122 analyzes changes in the location information from the previous location information of the subscriber terminal device 2. Specifically, the movement route analysis unit 122 acquires the movement route and movement speed of the subscriber terminal device 2 from the previous location information to the currently received location information.

[0043] In step S4, the travel route analysis unit 122 identifies the means of travel along the travel route based on the travel route and travel speed of the subscriber terminal device 2 obtained in step S3, by referring to map information from an external device, public transportation route information, the subscriber's payment information obtained based on information recorded in the subscriber information storage unit 132, etc.

[0044] In step S5, the movement route analysis unit 122 compares the movement route identified in steps S3 and S4 with the information on the home and workplace addresses recorded in the subscriber information storage unit 132, checks whether the movement route corresponds to movement between the home and workplace, and performs processing to exclude the movement route from the emissions calculation if it is determined that the movement route does not correspond to movement between the home and workplace. Note that this processing does not apply to movement on days that do not correspond to the subscriber's work days, school days, etc., in other words, the movement route may not be excluded from the emissions calculation.

[0045] In step S6, the emission calculation unit 123 reads out the unit emission data to be applied from the analysis data storage unit 133 for the means of transportation corresponding to the travel route obtained up to step S5, and calculates the CO2 emission amount.

[0046] In step S7, the emission data providing unit 124 determines whether it has received a request for providing the CO2 emissions and their aggregated values ​​from the subscriber terminal device 2. If a request for providing CO2 emissions has been received (YES in step S7), then in step S8, the emission data providing unit 124 transmits the CO2 emissions recorded for that subscriber terminal device 2. If a request for providing CO2 emissions has not been received (NO in step S7), the emission data providing unit 124 proceeds to the processing of step S2 and subsequent steps for the next subscriber terminal device 2 in the loop of step S1.

[0047] In step S9, the emission amount calculation unit 123 determines whether an instruction to end data processing has been received via the input / output unit 14. If an instruction to end data processing has been received (YES in step S9), the emission amount calculation unit 123 ends this data processing. If an instruction to end data processing has not been received (NO in step S9), the emission amount calculation unit 123 returns to step S1 and continues the process of acquiring and tallying the CO2 emissions for each subscriber terminal device 2. According to this type of data processing, the emission amount measurement device 1 can acquire and tally the CO2 emissions associated with the movement of each subscriber terminal device 2, and can provide each subscriber terminal device 2 with a record of the CO2 emissions associated with the movement in accordance with a request from each subscriber terminal device 2.

[0048] <<Data processing in emission measurement system S>> Next, data processing executed in an emission measurement system S equipped with an emission measurement device 1 and a subscriber terminal device 2 having the above-described configuration and functions will be described with reference to Fig. 7. Fig. 7 is a sequence diagram showing an example of data processing in the emission measurement system S. In the emission measurement system S, the emission measurement device 1 receives and aggregates CO2 emissions associated with movement from a plurality of subscriber terminal devices 2, and provides the aggregated data on CO2 emissions associated with movement for each subscriber terminal device 2 to the subscriber terminal device 2 based on a request from that subscriber terminal device 2.

[0049] 7, it is assumed that the subscriber terminal device 2 has logged in to the emission measurement device 1 and is able to exchange data. Referring to FIG. 7, in step S11, the emission management unit 222 of the subscriber terminal device 2 inquires of the emission measurement device 1 about CO2 emissions associated with travel. In this embodiment, the subscriber terminal device 2 has the function of acquiring the CO2 emission records from the emission measurement device 1 described above, and in terms of emission measurement, the subscriber terminal device 2 does not essentially perform its own data processing within itself. Therefore, the data processing in the subscriber terminal device 2 is described in FIG. 7 in relation to the emission measurement device 1. However, it is possible to optionally perform data processing such as issuing a reminder to the subscriber that CO2 emissions associated with travel are excessive, or outputting advice on reducing CO2 emissions, based on the CO2 emission records received from the emission measurement device 1.

[0050] In step S13, the emission amount data providing unit 124 of the emission amount measuring device 1 extracts the amount of CO2 emission associated with movement for the subscriber terminal device 2, based on the inquiry from the subscriber terminal device 2 in step S12.

[0051] In step S14, the emission data providing unit 124 responds to the subscriber terminal device 2 that made the inquiry with the extracted CO2 emission amount associated with the movement.

[0052] In step S15, the emission management unit 222 of the subscriber terminal device 2 outputs the emission amount data based on the received CO2 emission amount data.

[0053] As described above, the emission measurement system S equipped with the emission measurement device 1 and subscriber terminal device 2 in this embodiment can automatically aggregate CO2 emissions associated with the movement of each subscriber terminal device 2, and based on a request from each subscriber terminal device 2, can provide the aggregated data on CO2 emissions associated with the movement to the requesting subscriber terminal device 2.

[0054] <User Interface of Subscriber Terminal Device 2> Next, a user interface provided in the subscriber terminal device 2 of this embodiment that executes the above-mentioned data processing will be described. Fig. 8 shows a display screen 27, which is a user interface provided in the subscriber terminal device 2. The display screen 27 shown in Fig. 8 is typically a display screen of a smartphone, tablet terminal, or the like that is set to function as the subscriber terminal device 2, but is not limited to these. It is also possible to output in other output formats, such as audio output.

[0055] 8 includes a CO2 emission amount display section 271 associated with movement, a data request button 272, and a cancel button 273. Note that the display, operation, and other items and their layout on the screen are not limited to those in the example of FIG.

[0056] The travel-related emission display unit 271 displays the latest CO2 emissions associated with travel sent from the emission measurement device 1 in response to an emission data request from the subscriber terminal device 2. In the example of Fig. 8, CO2 emissions associated with travel are displayed categorized into four categories: "walking," "bicycle," "train / bus," and "other." These category classifications are just an example, and other categories such as "use of private car" may also be provided, and the subscriber terminal device 2 may be configured to be customizable.

[0057] 8 is configured to display the CO2 emissions associated with travel on the day the emission data is requested, as well as the cumulative emissions for that month. These displays allow the subscriber terminal device 2 to grasp the trend in CO2 emissions associated with travel at the time the emission data is requested.

[0058] 8 also has a data request button 272 and a cancel button 273. By operating the data request button 272, the subscriber terminal device 2 can request the emission measurement device 1 to provide data on CO2 emissions associated with movement. The cancel button 273 is provided for executing a process to cancel the display and operation on this screen.

[0059] Such a display screen 27 of the subscriber terminal device 2 allows for easy understanding of the CO2 emissions associated with movement at each subscriber terminal device 2, thereby increasing motivation to reduce CO2 emissions associated with movement and ultimately raising awareness of reducing CO2 emissions among small-scale consumers such as ordinary households.

[0060] According to the emission measuring device 1 in the embodiment of the present invention described above, it is possible to easily and accurately grasp the CO2 emissions associated with the movement of members of small-scale consumers such as ordinary households that possess each subscriber terminal device 2.

[0061] The emission measurement device 1 stores geographical information on multiple organizations to which the individual who possesses the subscriber terminal device 2 belongs, and can be configured to determine whether or not to record the CO2 emissions corresponding to a travel route identified based on location information based on the relationship between the geographical information and the travel route.

[0062] In this way, it is possible to prevent the CO2 emissions for the same travel route from being counted twice for multiple organizations to which an individual who possesses a subscriber terminal device 2 belongs.

[0063] The CO2 emissions on the travel route can be calculated as the difference between the CO2 emissions when traveling the travel route at the fastest speed and the CO2 emissions from the means of transportation actually used.

[0064] In this way, the effect of reducing CO2 emissions in each subscriber terminal device 2 can be objectively grasped.

[0065] The means of travel can be identified based on the travel speed when traveling along the travel route.

[0066] In this way, it is possible to accurately grasp travel by means of transportation such as walking, bicycles, and private cars, which do not have fixed routes like public transportation.

[0067] The emission measurement device 1 can store the amount of CO2 emission per unit time or per unit travel distance for each of the above-mentioned modes of transportation.

[0068] In this way, it is possible to quantitatively calculate the amount of CO2 emissions for each mode of transportation.

[0069] The emission measurement device 1 can be configured to identify the means of transportation by referring to the expenditure record associated with the travel of the individual who possesses the subscriber terminal device 2.

[0070] In this way, the means of transportation can be identified more accurately based on expenditure records relating to the use of trains, buses, taxis, etc., and the accuracy of calculating CO2 emissions can be improved.

[0071] The above-described series of processes can be executed by hardware or software. In other words, the functional configurations of Figures 2 and 3 are merely examples and are not particularly limited. In other words, it is sufficient that the emission measurement device 1 and the subscriber terminal device 2 are provided with the functionality to execute the above-described series of processes as a whole, and the functional blocks used to realize these functions are not particularly limited to the examples of Figures 2 and 3. Furthermore, one functional block may be configured as a single piece of hardware or as a single piece of software.

[0072] When a series of processes is executed by software, the programs that make up the software are installed into a computer or the like from a network or a recording medium. The computer may be a computer built into dedicated hardware. Alternatively, the computer may be a computer that can execute various functions by installing various programs, such as a general-purpose personal computer.

[0073] In this specification, the steps of describing a program to be recorded on a recording medium include not only processes that are performed chronologically in accordance with the order, but also processes that are not necessarily performed chronologically but are performed in parallel or individually.

[0074] Although several embodiments of the present invention have been described above, these embodiments are merely illustrative and do not limit the technical scope of the present invention. The present invention can take various other embodiments, and it is also possible to combine the configurations of the above embodiments and modifications. Furthermore, various modifications such as omissions and substitutions can be made without departing from the spirit of the present invention. These embodiments and modifications thereof are included within the scope and spirit of the invention described in this specification, etc., and are included in the invention described in the claims and their equivalents. [Explanation of symbols]

[0075] S Emissions measurement system 1. Emissions measuring device 2. Subscriber terminal equipment 121 Location information analysis department 122 Movement Path Analysis Unit 123 Emissions Calculation Department 124 Emissions Data Provider 131 Subscriber emissions storage unit 132 Subscriber information storage unit 133 Analysis data storage unit

Claims

1. An emission measurement device for measuring greenhouse gas emissions associated with the movement of an individual, Collecting personal location information, Identifying the individual's travel route and means of travel based on changes over time in the collected location information; a processing unit that calculates greenhouse gas emissions associated with the travel based on the identified travel route and the identified means of travel; The processing unit holds geographical information related to a plurality of organizations to which the individual belongs, and determines whether or not to account for greenhouse gas emissions corresponding to a travel route identified based on the location information, based on a relationship between the geographical information and the travel route. Emissions measuring device.

2. The emission measuring device of claim 1, wherein the greenhouse gas emissions for the travel route are calculated as the difference between the greenhouse gas emissions for traveling the travel route at the fastest speed and the greenhouse gas emissions for the means of transportation actually used by the individual.

3. The emission amount measuring device according to claim 1 or 2, wherein the means of travel is identified based on a travel speed when traveling along the travel route.

4. The emission measurement device according to claim 1 , wherein the processing unit holds a unit greenhouse gas emission amount for each of the means of transportation.

5. The emission measurement device according to claim 1 , wherein the processing unit identifies the means of transportation by referring to an expenditure record associated with the travel of the individual.

6. An emission measurement method for measuring greenhouse gas emissions associated with the movement of an individual, comprising: an information processing device that holds geographical information related to a plurality of organizations to which the individual belongs, Collecting personal location information, Identifying the individual's travel route and means of travel based on changes over time in the collected location information; Calculating the greenhouse gas emissions associated with the travel based on the identified travel route and means of travel; Based on the relationship between the travel route identified based on the location information and the geographical information, it is determined whether or not to account for the greenhouse gas emissions corresponding to the travel route. Emissions measurement methods.

7. A program for measuring greenhouse gas emissions associated with personal mobility, comprising: An information processing device that stores geographical information related to a plurality of organizations to which the individual belongs, The process of collecting personal location information; A process of identifying the individual's travel route and means of transportation based on changes over time in the collected location information; A process of calculating greenhouse gas emissions associated with the travel based on the identified travel route and the identified means of travel; a process of determining whether or not to account for greenhouse gas emissions corresponding to a travel route identified based on the location information, based on a relationship between the travel route and the geographical information; A program that executes the following.

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