Environmental load amount calculation device, guidance information providing system, and environmental load amount calculation method

The environmental load calculation device addresses the limitations of existing technologies by accurately calculating carbon dioxide emissions for travel routes and facility usage, incorporating weather and energy source variations, and providing users with actionable guidance to reduce their environmental impact.

JP7689908B2Active Publication Date: 2025-06-09HITACHI LTD
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Patent Information

Application Number
JP2021191772
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-26
Publication Date
2025-06-09
Estimated Expiration
2041-11-26

AI Technical Summary

Technical Problem

Existing technologies for calculating environmental load related to travel routes and facility usage are incomplete, as they do not accurately account for variations in emissions due to different energy sources, weather conditions, and operational measures, leading to potential selection of actions with higher overall environmental impact.

Method used

An environmental load calculation device that uses a computer to calculate power consumption and carbon dioxide emissions based on operation records, power consumption records, and power trading records, incorporating factors like weather and temperature to estimate the power source sharing rate and accurately determine emissions.

Benefits of technology

This solution enables accurate and comprehensive calculation of environmental loads, providing users with precise guidance on reducing their carbon footprint by selecting routes and actions with lower emissions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide an environmental load calculation device that calculates with high accuracy an environmental load related to a travel route or a facility to be used.SOLUTION: An environmental load calculation device includes: a power consumption calculation unit that calculates power consumption related to a travel route using operation performance and power consumption performance of a transportation system over a certain period of time; a power supply share estimation unit that estimates a power supply share that fluctuates depending on weather or temperature using a power transaction record; an emission calculation unit that calculates, on the basis of the power consumption and the power supply share, a carbon dioxide emission related to the travel route searched by a user; and a reduction calculation unit that calculates, on the basis of the carbon dioxide emission, a reduction of the carbon dioxide emission.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to an environmental load amount calculation device, a guidance information providing system, and an environmental load amount calculation method.

Background Art

[0002] In the effort to achieve a decarbonized society, initiatives to reduce greenhouse gas emissions are expanding. According to the 2019 survey, carbon dioxide emissions from the transportation sector accounted for 18.6% of the total. Among public transportation companies, efforts such as energy conservation of facilities and vehicles and utilization of renewable energy are being promoted.

[0003] Due to such initiatives, currently, even for the same movement between two points, the carbon dioxide emissions vary depending on the means of transportation used. However, without a means for users to measure the environmental load generated by their chosen actions, they cannot choose actions with a lower environmental load.

[0004] On the other hand, when obtaining guidance information on transportation services using an application, there is an application that estimates and presents the carbon dioxide emissions of the selected transportation service.

[0005] For example, Patent Document 1 discloses a system in which an application operating on a mobile terminal, when searching for a travel route between two points, estimates and shows the amount of carbon dioxide emitted during the movement together with the travel route information, taking into account the carbon offset sections specified by each transportation operator, and requests the user to pay according to the emissions.

[0006] Also, Patent Document 2 discloses a system in a car navigation system that, when searching for a travel route between two points, estimates considering the gradient and traffic congestion situation of the route together with the travel route information, and presents a route with the minimum carbon dioxide emissions from the departure point to the destination.

[0007] Furthermore, Patent Document 3 discloses a system that calculates the amount of carbon dioxide emissions according to the type of energy source of the power stored in a vehicle battery that stores the power used for the vehicle's travel, along with the travel route information, when searching for a travel route between two points.

Prior Art Documents

Patent Documents

[0008]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0009] In the technology disclosed in Patent Document 1, it is necessary for the transportation company to define the amount of carbon dioxide emissions and the carbon offset sections when moving in each section of the travel route, but the definition method is not disclosed.

[0010] The technology disclosed in Patent Document 2 calculates the amount of carbon dioxide emitted when each route is traveled by an automobile, taking into account the gradient of the travel route and the number of stops due to traffic congestion, but the energy source used by the automobile is not considered. Since the amount of carbon dioxide emissions varies greatly depending on the energy source such as thermal power or solar power generation, it is necessary to calculate the emissions taking into account the energy source.

[0011] The technology disclosed in Patent Document 3 calculates the amount of carbon dioxide emissions according to the type of energy source of the power stored in the vehicle battery, but in general railway vehicles, power is not stored on the vehicle and the power supplied at the time of travel is used via an overhead wire, so the disclosed method cannot be applied.

[0012] Transportation operators are implementing various measures such as renewable energy utilization and regenerative power utilization, and emissions vary depending on the route, train type, and time of day. However, Patent Documents 1 to 3 do not disclose methods for reflecting those measures. Furthermore, if actions are selected based only on the emissions of the means of transportation, there is a possibility of selecting actions with a high environmental impact overall.

[0013] An object of the present invention is to accurately calculate the environmental load amount related to a travel route or a facility to be used in an environmental load amount calculation device.

Means for Solving the Problems

[0014] An environmental load amount calculation device according to an aspect of the present invention is an environmental load amount calculation device that calculates the environmental load related to the movement of a user of a transportation facility using a computer having a processing unit and a storage unit, and uses the operation record and power consumption record of the transportation facility over a certain period to calculate the power consumption related to the travel route. A power consumption calculation unit, a power source sharing rate estimation unit that estimates a power source sharing rate that varies depending on the weather or temperature using the power trading record, and based on the power consumption and the power source sharing rate, calculates the carbon dioxide emissions related to the travel route searched by the user. An emission amount calculation unit, and a reduction amount calculation unit that calculates the reduction amount of the carbon dioxide emissions based on the carbon dioxide emissions amount.

Effects of the Invention

[0015] According to one aspect of the present invention, in an environmental load amount calculation device, the environmental load amount related to a travel route or a facility to be used can be calculated with high accuracy.

Brief Description of the Drawings

[0016]

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BEST MODE FOR CARRYING OUT THE INVENTION

[0017] Hereinafter, embodiments will be described with reference to the drawings.

Embodiment

[0018] FIG. 1 is a diagram showing the overall configuration of a guidance information providing system according to an embodiment. The guidance information providing system is a system that calculates the carbon dioxide emissions of the movement route and facilities searched by the user and provides guidance information on actions with less carbon dioxide emissions. The guidance information providing system is, for example, an information processing system in which an emissions calculation computer 1, a performance management computer 4, a guidance providing computer 2, and a user terminal 3 are connected via a network 9.

[0019] The discharge amount calculation computer 1, the guidance providing computer 2, and the performance management computer 4 all have, as hardware, a storage device (storage unit) 11 that stores programs and various data, a processing device 12 that executes programs, and a communication device 13 that communicates via the network 2. Here, the processing device 12 is composed of, for example, a CPU (processor). The communication device 13 is composed of, for example, a communication I / F.

[0020] The user terminal 3 is a portable terminal such as a smartphone held by the user. The user terminal 3 has, as hardware, a storage unit that stores programs and various data, a CPU that executes programs, a communication I / F that communicates with the network 2, an input unit, and a display unit. Note that in FIG. 1, for convenience of explanation, only the route / facility search unit 31 of the user terminal 3 is shown.

[0021] The discharge amount calculation computer 1 has a storage device (storage unit) 11, a processing device (CPU) 12, and a communication device (communication I / F) 13, and calculates the carbon dioxide discharge amount. The storage device (storage unit) 11 stores a discharge amount calculation program 100 and a database (DB) 110. The DB 100 includes a power purchase performance DB 400, a power sharing rate DB 500, an operation / power consumption performance DB 600, and a power source-specific discharge amount DB 700. Configuration examples of each DB will be described later. In the following description, the reference numerals attached to each DB may refer to the DB or the information of that DB. For example, it may be referred to as operation / power consumption performance 600, power sharing rate 500, etc.

[0022] The discharge amount calculation program 100 has the functions of a power sharing rate estimation unit 101, a power consumption calculation unit 102, a discharge amount calculation unit 104, and a reduction amount calculation unit 105. When this program 100 is executed by the CPU 12, each function is realized. Note that the discharge amount calculation program 100 does not necessarily need to include the above four functions at the same time, and it may be a collection of programs for each function.

[0023] The guidance-providing computer 2 is an information processing device that generates guidance information with the carbon dioxide emissions calculation results by the emissions calculation computer 1 and adds the carbon dioxide emissions to the route information for each user, and provides it to the user terminal 3. This computer 2 stores a guidance program 20 having the functions of a route / facility search unit 21 and a settlement unit 22 in a storage unit. By executing this guidance program 20 with a CPU, these functions are realized, and guidance information is generated and provided.

[0024] The performance management computer 4 is an information processing device that is owned by a company and is used by the company's employees to acquire and manage the carbon dioxide emissions and reduction amounts related to the movement and facility use carried out as part of the company's activities. For example, the performance management computer 4 converts the carbon dioxide amount reduced by an employee by checking the carbon dioxide emissions related to the movement and facility use carried out as part of the company's activities and selecting a means with less carbon dioxide emissions into an in-company currency that can be used by the organization to which the employee belongs.

[0025] The performance management computer 4 is an information processing device that has an emissions performance / reduction performance DB 900 and a performance management unit 41 in a storage unit and manages performance information and in-company currency. By executing a program with a CPU, management such as recording and reading of information in each DB is performed.

[0026] Next, each functional unit of the emissions calculation computer 1 will be described.

[0027] The power sharing rate estimation unit 101 of the emissions calculation program 100 acquires the power transaction record 200 from the power management computer 6 via the communication I / F 13, and creates a power sharing rate 500 based on the day of the week, time zone, weather, and temperature.

[0028] The power consumption calculation unit 102 acquires the operation results 800 from the operation management computer 5 via the communication I / F 13, and further acquires the power consumption results 300 from the power management computer 6, and creates the operation and power consumption results 600 that record the actual number of passengers and the actual power consumption for each route and section. Then, the power consumption calculation unit 102 receives an inquiry from the guidance providing computer 2 via the communication I / F 13, and estimates the power consumption per person for an arbitrary route and section based on the operation and power consumption results 600, the boarding date and time, the weather, and the temperature.

[0029] The emission calculation unit 104 obtains the power sharing ratio at the time of boarding based on the boarding date and time, the weather, and the temperature from the power sharing ratio 500, and obtains the carbon dioxide emission amount at the time of using the route and section from the power consumption amount, the power sharing ratio at the time of boarding, and the emission amount per power source 700.

[0030] The reduction amount calculation unit 105 calculates the reduction amount of the carbon dioxide emission amount based on the carbon dioxide emission amount obtained by the emission calculation unit 104.

[0031] Next, with reference to FIGS. 2 to 6, a configuration example of each DB (or DB information) will be described.

[0032] FIG. 2 shows the plan information 210 which is the result of the user's route search and facility search. The plan information 210 is the movement route searched by the user and the facility information arranged in chronological order of use, and is the information provided as the action guidance to the user. The plan information 210 is composed of the date and time 211, the station ID or facility ID 212 used, the action type 213 indicating the entry and exit of the station or facility, the route ID 214, the service ID 216 of the transportation means used, the type 215 indicating the type of the transportation means or the type of the facility, and the formation number 217 of the transportation means.

[0033] Figure 3 shows an example of the electricity transaction performance DB400. The electricity transaction performance DB400 is composed of the purchase destination 311, the power source type 312, the transaction volume per hour 313, the transaction start time 314, the transaction end time 315, the weather at the start of the transaction 316, the temperature at the start of the transaction 317, and the day of the week on which the transaction was conducted 318. Here, the reason why the weather, temperature, and day of the week are recorded is that in the case of solar power generation, the power generation amount fluctuates depending on the weather. Furthermore, when purchasing the electricity generated by solar power from ordinary households, the consumption amount at home is determined by the temperature and day of the week of that day, and the electricity to be sold fluctuates.

[0034] Figure 4A shows an example of the power source sharing ratio 500. The power source sharing ratio 500 is composed of the time zone code 421, the weather code 422, the day of the week 423, the temperature zone code 424, and the power source sharing ratio 425.

[0035] Figure 4B shows the emissions by power source 700. The emissions by power source 700 is composed of the power source type 426, the priority order of the power source 427, and the emission factor 428. For each type of power source such as solar power generation and LNG thermal power generation, the priority order of utilization and the emission factor, which is the amount of carbon dioxide emitted to generate 1 kWh of electricity, are defined. The emission factor is publicly disclosed by the power company.

[0036] Figure 5 shows an example of the operation and electricity consumption performance 600. The operation and electricity consumption performance DB600 is composed of the route ID 511, the train type 512, the formation number (formation number) 513, the departure station 514, the arrival station 515, the number of passengers boarding at the departure from the departure station 515, the temperature at the departure from the departure station 517, the train consumption power 518, which is the power required for the train to travel from the departure station 514 to the arrival station 515, and the recovered power 519, which is the power recovered by means of regenerative braking during the travel from the departure station 514 to the arrival station 515.

[0037] Here, the route ID 511, the train type 512, the formation number 513, the departure station 514, the arrival station 515, and the number of passengers boarding at the departure of the departure station 515 are acquired by the power consumption calculation unit of the emission amount calculation program 100 from the operation management computer 5. The train power consumption 518 and the recovered power 519 are acquired by the power consumption calculation unit of the emission amount calculation program 100 from the power management computer 6 owned by the transportation operator.

[0038] FIG. 6 is a diagram showing an example of facility energy consumption 600. The facility energy consumption 600 is composed of a facility ID 611, a service ID 612, the occupancy number 613, and the power consumption 613.

[0039] Next, with reference to FIG. 7, a case where an employee of a company uses the present invention to determine a seminar venue and a travel route will be described.

[0040] First, the emission amount calculation computer 1 operated by the transportation operator collects operation results and power consumption results, and creates operation / power consumption results 600 (S741). Next, a seminar organizer who is an employee of the company searches for a venue (S711). The guidance providing computer 2 searches for locations where the moving distance of each person is equal to or less than a certain value from the addresses of the participants, and inquires the emission amount calculation computer 1 about the carbon dioxide emissions involved in the use and movement of these facilities. The guidance providing computer 2 calculates the carbon dioxide emissions involved in facility use and movement (S742).

[0041] Next, the carbon dioxide emissions when all facility use and movement are the most widely used power sources such as LNG thermal power are obtained, and the difference is calculated as the reduction amount (S743), and the guidance information on the facility and the travel route is returned to the user terminal 3.

[0042] The seminar organizer selects a venue considering the total emissions (S712). The guidance-providing computer 2 bills the enterprise for the facility usage fee and pays it to the facility operator. Furthermore, it notifies the enterprise of the actual performance of travel and emissions (the reduction achievement when a means with more emissions reduction is selected). The enterprise's performance management computer 4 records the reduction amount achievement for each department, converts the reduction amount into the enterprise's currency (S731), awards it to the corresponding department, and includes it in the disclosure of climate change countermeasure information (S732). The organizer or its affiliated department conducts activities using the enterprise's currency as the original capital (S713).

[0043] Note that the method for calculating the reduction amount may be the difference from the emissions of the shortest route or the cheapest route selected by many people in the case of travel routes or transportation routes. Also, when travel or transportation at a time with less emissions is selected instead of the initially specified travel date and time or shipping date and time, the difference in emissions between the initially specified time and the time when travel or transportation is carried out at the selected time may be obtained and used as the reduction amount.

[0044] Next, with reference to FIG. 8, the calculation of the power consumption of the travel route will be described. This process is related to the process by the power consumption calculation unit 102 of the emissions calculation program 100.

[0045] The emissions calculation program 100 is executed by the CPU 12. The power consumption calculation unit 102 periodically (for example, once a week or once a month, etc.) obtains from the operation management computer 5 the route ID 511, the train type 512, the formation number (formation number) 513, and the boarding number 516 at the departure station 514 when departing from the departure station 514 for the travel section between the departure station 514 and the arrival station 516.

[0046] Here, the boarding number is information that can be obtained from a load sensor installed in the vehicle or a sensor installed at the station. Furthermore, the power consumption calculation unit 102 periodically (for example, once a week or once a month, etc.) obtains from the power management computer 5 the route ID 511, the train type 512, the power consumption 518 consumed for travel between the departure station 514 and the arrival station 516, which is the travel section, and the recovered power 519 (S801).

[0047] Next, when the power consumption calculation unit 102 receives the plan information 200 from the route / facility search unit 21 of the guidance providing computer 2, it extracts the ride intervals distinguished by the route ID 214, the train ID 215, the boarding station ID 212, and the alighting station ID 212 of the plan information 200 in chronological order (S802). Note that the boarding station is the station where the action type 213 is "departure", and the alighting station is the station where the action type 213 is "arrival".

[0048] Then, the power consumption calculation unit 102 acquires the predicted information on the weather and temperature at the time of boarding in the interval using the weather forecast service (S803). Services that provide forecasts of weather and temperature several days to several hours in advance via API are generally available.

[0049] Subsequently, the power consumption calculation unit 102 extracts the ride interval consisting of the route ID 214, the departure station ID, and the arrival station ID, the formation number 217 of the train used, and the train type 216 from the plan information 200, and using the predicted value of the temperature at the time of boarding, obtains the power consumption between each station in the ride interval from the operation / power consumption record 600, adds them up, and obtains the power consumption of the entire ride interval (S804). The details of this power consumption acquisition process will be described later with reference to FIG. 10.

[0050] Then, subtracting the recovered power 516 from this power consumption, adding the common facilities such as lines, overhead lines, signals, and stations that are commonly borne regardless of the train, the substantial power consumption is obtained (S805). Next, the substantial power consumption is divided by the number of passengers to calculate the power consumption per person (S806).

[0051] Next, from the weather, temperature, day of the week, and time zone at the time of boarding, referring to the power source sharing ratio 500, the power source sharing ratio at the time of boarding is obtained. Then, the power consumption per person is multiplied by the sharing ratio to obtain the power consumption of each power source, and the power consumption of each power source is multiplied by the emission factor of the power source to obtain the carbon dioxide emission amount due to the use of the power of the power source. Then, the sum of the carbon dioxide emission amounts of all power sources is taken as the carbon dioxide emission amount due to interval movement.

[0052] The power consumption calculation unit 102 searches the plan information 200 for a section for which the carbon dioxide emission calculation has not been processed (S807), and if there is an unprocessed section, extracts the results for that section (S801). If there is no unprocessed section, the process ends.

[0053] Note that the above processing of the power consumption calculation unit (S804) to (S806) assumes that the power consumption of each train is measured by an on-board power meter, but in reality, there are many cases where the power consumption of each train is not measured. In such cases, the distance and power consumption per person are calculated using the following formula from the total output value of the substation in the electromotive circuit to which the target train belongs, and the total transportation distance and capacity of the trains in the electromotive circuit during a certain period including the target date and time. Power consumption of transportation service (kWh / 1km·person) = Total output (kWh) / Σ(Total transportation distance of all flights × Capacity of each flight)

[0054] Next, the process of calculating the amount of power consumption for facility use will be described with reference to Fig. 9. This process involves the process by the power consumption calculation unit 102 of the emission calculation program 100. Even for the same distance, the power consumption differs depending on the gradient, curves, air conditioning use, vehicle weight, and number of passengers, so the emission calculation program 100 calculates the power consumption from the actual results.

[0055] The emission amount calculation program 100 is executed by the CPU 12. When the power consumption calculation unit 102 receives the plan information 200 from the route and facility search unit 21 of the guidance providing computer 2, it acquires records related to facility usage from the plan information 200 and extracts the facility ID 214 and the service ID 215 in chronological order (S901).

[0056] Then, the power consumption calculation unit 102 obtains the predicted values ​​of the weather and temperature at the time of using the facility by using a weather forecast service (S902), and calculates the power consumption required for using the facility based on the power consumption record 600 using the facility ID to be used, the service type, and the predicted value of the temperature at the time of boarding (S903).

[0057] Next, based on the weather, temperature, day of the week, and time zone during facility use, refer to the power sharing ratio 500 to obtain the power sharing ratio during facility use (S905). Then, multiply the power consumption per person by the sharing ratio to obtain the power consumption of each power source, and multiply the power consumption by the emission factor of the power source to obtain the carbon dioxide emission amount due to the use of the power by the power source. Then, the sum of the carbon dioxide emission amounts of all power sources is set as the carbon dioxide emission amount due to facility use (S906).

[0058] The power consumption calculation unit 102 searches for facilities for which carbon dioxide emission amount calculation is not processed from the plan information 200 (S907). If there is an unprocessed facility, it extracts the usage record of the facility (S901). If there is no unprocessed facility, the process ends.

[0059] Next, with reference to FIG. 10A, the power consumption estimation operation (S804) of the power consumption calculation unit 102 will be described. FIG. 10B is a diagram showing the relationship between the boarding rate and the power consumption.

[0060] The power consumption calculation unit 102 regularly (for example, once a week or once a month) obtains from the operation management computer 5 the route ID 511, the train type 512, the number of formations (formation number) 513, and the boarding number 516 at the departure station 514 when departing from the departure station 514 for the departure station 514 and the arrival station 516 which are the running sections.

[0061] Here, the boarding number is information that can be obtained from a load sensor provided in the vehicle or a sensor installed at the station. Further, the power consumption calculation unit 102 regularly (for example, once a week or once a month) obtains from the power management computer 5 the route ID 511, the train type 512, the power consumption 518 consumed for running between the departure station 514 and the arrival station 516 which are the running sections, and the recovered power 519, and records them as the operation and power consumption record 600 (S1001).

[0062] The power consumption calculation unit 102 selects only the performance of the most recent fixed period from the operation and power consumption performance 600 accumulated as described above, and selects only the performance in which the route ID 214 retrieved from the plan information 200, the train type, the formation number, and the boarding sections distinguished by the boarding station ID 212 and the alighting station ID 212 all match (S1002).

[0063] Furthermore, the power consumption calculation unit 102 selects only the performance with the temperature zone code including the temperature during boarding in the section (S1003). Then, the power consumption calculation unit 102 uses the selected performance to obtain the power consumption in the case of a reference boarding rate such as 50%. Generally, even when the number of passengers is 0, a certain amount of power is required to run the vehicle, and the required power is added as the number of passengers increases. Therefore, when comparing the power consumption of transportation services, a higher boarding rate results in a lower value because the fixed power applied to the vehicle itself is divided.

[0064] Taking this point into consideration, the carbon dioxide emissions are calculated based on the power consumption in the case of the reference boarding rate. When a power consumption calculation formula can be obtained as a vehicle specification, the actual performance data is applied to the calculation formula to identify the parameters, a relational expression between the boarding rate and the power consumption is obtained, and the power consumption when the boarding rate is 50% is estimated (S1005). When there is no power consumption calculation formula, the power consumption when the boarding rate is 50% is estimated by linear interpolation (S1006).

[0065] With reference to FIG. 11, the operation of calculating the power sharing ratio will be described. The power sharing ratio estimation unit 101 determines the power sharing ratio for each power source based on the power purchase performance by power source in the most recent fixed period. This is because the output of renewable energy fluctuates depending on the weather, temperature, and day of the week. In particular, in the case of solar power generation, there is a difference of more than double in the generated power between sunny days and cloudy days. Also, since the power demand of ordinary households fluctuates depending on the day of the week and temperature, the amount of surplus power sold at home also fluctuates. Therefore, from the power management computer 6, the power type 312, the transaction volume per unit time, the transaction start time 314, and the transaction end time 315 for the power supplied to an arbitrary route are periodically (for example, at a frequency of once a week or once a month) acquired, and the weather 316 at the transaction start time, the temperature 317 at the transaction start time, and the day of the week 318 on which the transaction was conducted are recorded as the power transaction performance 400 (S1101).

[0066] Here, the weather 316 at the transaction start time is recorded as a code indicating the weather, such as 10 for sunny, 15 for sunny with occasional clouds, 20 for cloudy, 25 for cloudy with occasional rain, 30 for rain, 35 for rain with occasional snow, and 40 for snow. The temperature 317 at the transaction start time is recorded as a temperature zone code in 5°C increments, for example, 00 for 0°C to 4°C and 05 for 5°C to 9°C.

[0067] Next, the power sharing ratio estimation unit 101 obtains a predicted value of the power demand for the target date and time from the sum of the transaction volumes for all power sources (S1102). Here, the predicted value of the power demand can be obtained using a time series prediction method such as ARIMA (Autoregressive Integrated Moving Average) or RNN (Recurrent Neural Network) based on the performance.

[0068] The power sharing rate estimation unit 101 selects only the performance of the most recent fixed period from the power transaction records 400 accumulated as described above, and selects only the performance of the same day of the week and the same time zone as the time point of boarding in the boarding section to be processed, that is, the time point of the date and time 211 of the performance where the action type 214 is "boarding", which is extracted from the plan information 200 (S1103). Then, the power sharing rate estimation unit 101 further selects only the performance whose weather code matches the time point of the date and time 211 from the selected performance (S1104). As a result, when there are multiple performances with the corresponding weather code (S1105), only the performance with a similar temperature zone code is selected from them, and their average value is used as the predicted value (S1106).

[0069] In this way, the power sharing rate estimation unit 101 extracts the performance with conditions such as weather and temperature similar to the target date and time, and estimates the transaction volume of each power source on the target date and time. The method shown from S1104 to S1106 is a method of selecting similar performance by emphasizing weather over temperature, but it is not limited to the above. For example, using a method such as the k-nearest neighbor method, the weather code and temperature code of each performance are expressed in a dispersed form such as (20, 25), and the Euclidean distance between the weather code and temperature code of the target day and the weather code and temperature code of the performance is calculated. The performance with a distance from the target day less than or equal to a certain value is selected as the performance with a high similarity, and the average value of the transaction volumes of each power source of these performances is used as the predicted value. Then, the ratio of the transaction volume of each power source to the power demand is defined as the power sharing rate (S1107).

[0070] Furthermore, generally, when using a variable power source such as solar power generation, a stably supplied power source such as LNG thermal power is used as a backup. Therefore, when a variable power source such as solar power generation is the main power source with the highest priority, first, the transaction volume of solar power generation is obtained, and the ratio of the transaction volume to the power consumption of the target route and target section at the target date and time is used as the ratio of the solar power source, and the rest is used as the ratio of other power sources with the second highest priority.

[0071] The power sharing rate estimation unit 101 records the power sharing rate 425 obtained in this way as the power sharing rate 500 together with the time zone code 421, the weather code 422, the temperature zone code 423, and the day of the week 424. Referring to this power sharing rate 500, the emission amount calculation unit 104 calculates the carbon dioxide emission amount. However, since the power company for trading changes over time and the transaction volume by power source also changes, the power sharing rate estimation unit 101 may calculate the power sharing rate 500 each time the emission amount is calculated. As described above, for the action plan including movement and facility use, the carbon dioxide emission amount thereof is calculated.

[0072] FIG. 12 shows an example of a route search screen 1200 displayed on the route / facility search unit 31 of the user terminal 3. As a result of calculating the carbon dioxide emission amount, the screen 1200 includes the display of the guidance information 1221 of the carbon minimum route with less carbon dioxide emission amount in addition to the normal shortest route guidance information 1211 for the user.

[0073] For example, in the guidance information 1211 of the shortest route, starting from Station A, moving for 20 minutes on Route X to arrive at Station B, working at Facility P, and then moving for 20 minutes on Route X to move back to Station A.

[0074] On the other hand, in the guidance information 1221 of the carbon minimum route, moving for 30 minutes on Route Y to go to Station D, working at Facility Q, and then moving for 30 minutes using Route Y to move to Station A. In the guidance information 1221 of the carbon minimum route, although the emission amount for movement is large due to the long moving distance, the emission amount of the conference venue Q used is small, so the carbon dioxide emission amount of the entire action plan is smaller than that of the shortest route.

[0075] In the guidance information 1211 and the guidance information 1221, the means of transportation used in these sections and the carbon dioxide emission amounts of the facilities used are displayed. Further, the maximum values of the carbon dioxide emission amounts of those means of transportation and facilities are displayed in parentheses, and by presenting the carbon dioxide emission amount of the entire action plan and the reduction amount of the carbon dioxide emission amount that can be reduced by adopting the action plan, it encourages the selection of a route with less carbon dioxide emission amount.

[0076] Here, the maximum value of carbon dioxide emissions is the amount of carbon dioxide emissions when all transportation means and facility power sources are the most widely used power sources such as LNG thermal power. The difference between the maximum value and the emissions of the presented route is the reduction amount of carbon dioxide emissions.

[0077] The route search screen 1200 is a screen for an individual to search for and select facilities such as offices and hotels and transportation means. However, as described in FIG. 7, for an employee of a company to determine the venue and travel route of a seminar, for seminar participants, information similar to the route search screen 1200 is acquired, and the total amount of carbon dioxide emissions and the total reduction amount of carbon dioxide emissions of all participants are obtained, so that a venue with less carbon dioxide emissions can be selected.

[0078] FIG. 13 shows another example of the route search screen 1200 displayed on the route and facility search unit 31 of the user terminal 3. Here, the screen 1200 is a search result display screen for transportation means when transporting goods. In addition to the guidance information 1231 for transportation by truck for the user, it includes the display of the guidance information 1241 for the carbon minimum route using railway freight transportation.

[0079] Here, the guidance information 1231 for transportation by truck is for night transportation, while the guidance information 1241 for the carbon minimum route proposes daytime transportation in order to reduce carbon dioxide emissions by using railway freight transportation powered by sunlight. In this way, the user can select a transportation means with less carbon dioxide emissions and the timing of transportation.

[0080] FIG. 14 shows an example of a screen 1300 for confirming the reduction amount of carbon dioxide emissions by the performance management unit 41 of the performance management computer 4 with respect to the performance management unit 41 of the performance management computer 4.

[0081] The performance management screen 1300 has input items for entering the department and period as conditions for checking performance. The administrator inputs conditions from the input section for the items on the screen 1300 displayed on the performance display screen provided by the performance management department 41. Then, the performance management department 41 displays the amount of carbon dioxide reduction for the input item conditions.

[0082] Furthermore, the performance management department 41 displays the percentage of the department in the total carbon dioxide emissions reduction of the entire company. On this screen, since it is considered that emissions will increase if the activities of the organization are active, rather than visualizing the emissions for each organization, by visualizing the reduction amount, while encouraging corporate activities, the effort of reduction can be promoted.

[0083] Furthermore, the performance management department 41 can operate to promote the reduction effort at the department level by converting the reduced carbon dioxide emissions amount into company currency according to a predetermined rate and granting it to the department. On the screen 1300, the monthly acquired points and the cumulative acquired points after conversion into company currency are displayed.

[0084] In this way, in the above embodiment, regarding the movement route and facilities, the amount of carbon dioxide emitted along with the movement and facility use is calculated based on the vehicle's driving and the power consumption amount used in the facilities, and the dynamic energy source of the power, and provided as guidance information.

[0085] Also, in the above embodiment, the total carbon dioxide emissions amount including the means of movement and the actions at the destination is calculated, and actions with a lower environmental impact are recommended. For example, instead of working with air conditioning on at home with a thermal power source, induce to work at a means, place, and time zone where renewable energy can be used by moving. If holding a meeting in an office building with a thermal power source results in more emissions reduction than holding it in a meeting room powered by renewable energy even if it is a bit farther away, propose the use of the meeting room.

[0086] According to the above embodiment, regarding the emissions associated with movement and facility use, it is possible to present values closer to the actual situation according to the route, train type, and time zone. As a result, it becomes possible to show the validity of charging and point awarding to users and to induce them to use services with lower emissions or services during days and time zones with lower emissions.

[0087] As described above, according to the above embodiment, by utilizing the operation results, power consumption results, and power trading results, and taking into account the supply amount of renewable energy that varies with weather and temperature, it is possible to accurately calculate the carbon dioxide emissions of transportation services. As a result, regarding the emissions associated with movement and facility use, it is possible to present values closer to the actual situation according to the route, train type, and time zone. Furthermore, this makes it possible to show the validity of charging and point awarding to users and to induce them to use services with lower emissions or services during days and time zones with lower emissions.

[0088] Incidentally, although the above embodiment uses human movement and facility use as examples, the disclosed technology can also be applied to the transportation of goods. In the transportation of goods, it is also conceivable to reduce emissions by selecting a time zone when a power source with low emissions can be used for transportation.

[0089] Also, although the above embodiment deals with the calculation of carbon dioxide emissions, the disclosed technology can also be applied to the calculation of resource usage and the reduction amount regarding the reduction of resource usage.

[0090] As described above, one embodiment of the present invention has been described. However, the present invention is not limited to the above embodiment and can be implemented with various modifications. For example, the configuration of each database in the above embodiment is an example, and some data may not be registered, or other related data may be added and registered.

[0091] In addition, in the guidance information providing system of the above-described embodiment, the functions of the guidance providing computer 2, the performance management computer 4, and the mobile performance management computer 5 are configured to be separated from the emission amount calculation computer 1. However, according to other examples, some or all of the functions of these computers 3, 4, and 5 may be configured to be provided in the emission amount calculation computer 1. Further, it can also be understood as a carbon dioxide emission amount calculation program and a guidance information providing program executed by the above-described guidance information providing system.

Explanation of Signs

[0092] 1 Emission amount calculation computer 3 User terminal 4 Performance management computer 5 Operation management computer 9 Network 11 Storage device 12 Processing device 13 Communication device 20 Guidance program 21 Route / facility search section 22 Settlement section 31 Route / facility search section 100 Emission amount calculation program 101 Power sharing rate estimation section 102 Power consumption calculation section 104 Emission amount calculation section 105 Reduction amount calculation section 110 Database 400 Power trading performance 500 Power sharing rate 600 Operation / power consumption performance 700 Emission amount by power source 900 Emission performance / reduction performance

Claims

1. An environmental load amount calculation device that calculates the environmental load related to the movement of users of transportation means using a computer having a processing unit and a storage unit, a power consumption calculation unit that calculates the power consumption related to the movement route using the operation results and power consumption results of the transportation means over a certain period; a power source sharing rate estimation unit that estimates the power source sharing rate based on weather or temperature using the power transaction results; an emission amount calculation unit that calculates the carbon dioxide emission amount related to the movement route searched by the user based on the power consumption and the power source sharing rate; a reduction amount calculation unit that calculates the reduction amount of the carbon dioxide emission amount based on the carbon dioxide emission amount; An environmental load amount calculation device characterized by comprising the above.

2. The power consumption calculation unit calculates the power consumption in the case of a certain boarding rate for any section of an arbitrary route using the operation results and the power consumption results, and is the environmental load amount calculation device according to Claim 1.

3. The power consumption calculation unit calculates the power consumption of any route and section using the transportation means as the power consumption related to the movement route, The emission amount calculation unit obtains the carbon dioxide emission amount for each power source, sums up the carbon dioxide emission amounts for each power source, and calculates the carbon dioxide emission amount of the section, and is the environmental load amount calculation device according to Claim 1.

4. The power source sharing rate estimation unit estimates the power source sharing rate at the time of running of the transportation means using the power purchase results of the transportation business operator as the power transaction results, and is the environmental load amount calculation device according to Claim 1.

5. The reduction amount calculation unit obtains the difference between the calculated carbon dioxide emission amount and the carbon dioxide emission amount of other transportation services to calculate the reduction amount, and is the environmental load amount calculation device according to Claim 1.

6. The environmental load amount calculation device calculates the environmental load related to the facilities used by the user together with the environmental load related to the movement of the user of the transportation means, The power consumption calculation unit calculates the total power consumption of the action plan including the power consumption related to the movement route and the power consumption related to the facilities using the operation results and power consumption results of the transportation means and the power consumption results of the facilities for the entire action plan including the movement of the user of the transportation means and the facility information of the facilities used by the user, The emission amount calculation unit The environmental load amount calculation device according to claim 1, characterized in that the carbon dioxide emission amount related to the entire action plan including the movement route and the facility information searched by the user is calculated using the total power consumption of the action plan.

7. The action plan is The environmental load amount calculation device according to claim 6, characterized in that it is configured by arranging in chronological order the movement route and the facility information searched by the user, and is information provided as an action guidance to the user.

8. A guidance information providing system for providing route guidance information to a user who uses a transportation facility using an electronic medium, a first computer that calculates the environmental load related to the movement of the user, a second computer that provides the route guidance information to the user terminal held by the user based on the environmental load calculated by the first computer, and has The first computer is an environmental load amount calculation device that calculates the environmental load related to the movement of the user of the transportation facility using a computer having a processing unit and a storage unit, a power consumption calculation unit that calculates the power consumption related to the movement route using the operation results and power consumption results of the transportation facility over a certain period, a power sharing rate estimation unit that estimates the power sharing rate based on the weather or temperature using the power trading results, an emission amount calculation unit that calculates the carbon dioxide emission amount related to the movement route searched by the user based on the power consumption and the power sharing rate, a reduction amount calculation unit that calculates the reduction amount of the carbon dioxide emission amount based on the carbon dioxide emission amount, and has The second computer is a route facility search unit that searches for the movement route according to the conditions input by the user and provides the route guidance information to the user, The route facility search unit is inquires the first computer about the environmental load related to the searched movement route, and sends the route guidance information including the carbon dioxide emission amount calculated by the emission amount calculation unit of the first computer to the user terminal. A guidance information providing system characterized by this.

9. The first computer is calculates the environmental load related to the facility used by the user together with the environmental load related to the movement of the user of the transportation facility, The power consumption calculation unit is For the overall action plan including the movement of the user of the transportation facility and the facility information of the facility used by the user, using the operation record and power consumption record of the transportation facility and the power consumption record of the facility, calculate the total power consumption of the action plan including the power consumption related to the movement route and the power consumption related to the facility. The emission calculation unit Using the total power consumption of the overall action plan, calculate the carbon dioxide emissions related to the overall action plan including the movement route and facility information searched by the user. The route facility search unit of the second computer Search for the movement route and facility information according to the conditions input by the user. Inquire the first computer about the environmental load related to the searched movement route and the environmental load related to the facility information. The guidance information providing system according to claim 8, characterized in that the route guidance information including the carbon dioxide emissions related to the overall action plan calculated by the emission calculation unit of the first computer is sent to the user terminal.

10. The user terminal The guidance information providing system according to claim 9, characterized in that the route guidance information including the carbon dioxide emissions related to the overall action plan is displayed for each movement route and facility.

11. The action plan The guidance information providing system according to claim 9, characterized in that it is composed of arranging the movement route and facility information searched by the user in chronological order and is information provided as action guidance to the user.

12. The power consumption calculation unit of the first computer The guidance information providing system according to claim 8, characterized in that using the operation record and power consumption record, calculate the power consumption in the case of a certain boarding rate for any section of any route.

13. The second computer The guidance information providing system according to claim 8, further comprising a settlement unit that acquires the boarding and alighting information of the transportation facility of the user boarding and alighting using the electronic medium and substitutes for the billing and payment of the fare.

14. Further comprising a third computer operated by an enterprise. The third computer The guidance information providing system according to claim 9, further comprising a performance management unit that checks the carbon dioxide emissions related to the movement or use of the facilities performed by an employee as part of corporate activities and converts them into in-company currency that can be used by the organization to which the employee belongs.

15. An environmental load amount calculation method device that calculates the environmental load related to the movement of users of transportation means using a computer having a processing unit and a storage unit, a power consumption calculation step of calculating the power consumption related to the movement route using the operation performance and power consumption performance of the transportation means over a certain period; a power sharing ratio estimation step of estimating the power sharing ratio based on the weather or temperature using the power trading performance; an emission amount calculation step of calculating the carbon dioxide emissions related to the movement route searched by the user based on the power consumption and the power sharing ratio; a reduction amount calculation step of calculating the reduction amount of the carbon dioxide emissions based on the carbon dioxide emissions; characterized by comprising the above steps.

Citation Information

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