Carbon dioxide emission amount calculation system, carbon dioxide emission amount calculation method, and program

Abstract

To appropriately calculate the total carbon dioxide emission amount of a plurality of vehicles.SOLUTION: A carbon dioxide emission amount calculation system calculates the total emission amount of carbon dioxide emitted by a plurality of vehicles traveling a toll road in a predetermined area for each predetermined unit time. The system includes: an acquisition section that acquires, for each vehicle, the entry time to an area of the toll road, a vehicle type, and the exit time from the area; a calculation section that calculates, with respect to the plurality of vehicles located in the area, a carbon dioxide emission amount for each vehicle on the basis of a value corresponding to weight based on the vehicle type of each vehicle, a value corresponding to a moving distance in unit time, and a value corresponding to carbon dioxide emission basic unit representing the carbon dioxide emission amount per a product of the weight and a distance; and an addition section that calculates, with respect to the plurality of vehicles located in the area, the total emission amount of carbon dioxide emitted by the plurality of vehicles traveling the toll road in the area in the unit time by adding up the carbon dioxide emission amount for each vehicle.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a carbon dioxide emission calculation system, a carbon dioxide emission calculation method, and a program. [Background technology]

[0002] Patent Document 1 describes an example of the configuration of a points management system that enables management of the allocation or deduction of points for toll discounts on toll roads according to the amount of carbon dioxide emission reduction, and ultimately aims to promote the use of low carbon dioxide emission vehicles. In the points management system described in Patent Document 1, the number of points is calculated by calculating the amount of emission reduction based on the actual carbon dioxide emission amount and the standard carbon dioxide emission amount of each vehicle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-217502 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, regarding the carbon dioxide emissions on toll roads, it may be necessary to grasp, for example, the total value of the carbon dioxide emissions of multiple vehicles traveling within a specific area. However, the system described in Patent Document 1 grasps the carbon dioxide emissions of each vehicle, and there is a problem that it is not necessarily suitable for grasping the total value of the carbon dioxide emissions of multiple vehicles.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a carbon dioxide emission calculation system, a carbon dioxide emission calculation method, and a program that can appropriately calculate the total carbon dioxide emissions of multiple vehicles. [Means for solving the problem]

[0006] In order to solve the above problems, the carbon dioxide emission calculation system of the present disclosure is a system that calculates the total carbon dioxide emissions emitted by a plurality of vehicles traveling on a toll road within a specified area for each specified unit time, and includes an acquisition unit that acquires, for each vehicle, the time of entry into the area of ​​the toll road, the vehicle type, and the time of exit from the area, a calculation unit that calculates the carbon dioxide emissions for each of the plurality of vehicles located within the area based on a value corresponding to the weight based on the vehicle type of each of the vehicles, a value corresponding to the distance traveled in the unit time, and a value corresponding to a carbon dioxide emission unit that represents the amount of carbon dioxide emissions per product of weight and distance, and an addition unit that adds up the carbon dioxide emissions for each of the plurality of vehicles located within the area to calculate the total carbon dioxide emissions emitted by the plurality of vehicles traveling on the toll road in the area in that unit time.

[0007] The carbon dioxide emission calculation method disclosed herein is a method for calculating a total carbon dioxide emission amount emitted by a plurality of vehicles traveling on a toll road within a specified area for each specified unit time, and includes the steps of: acquiring, for each vehicle, the time of entry into the area of ​​the toll road, the vehicle type, and the time of exit from the area; calculating carbon dioxide emission amounts for each of the plurality of vehicles located within the area based on a value corresponding to the weight of each of the vehicles based on the vehicle type, a value corresponding to the distance traveled in the unit time, and a value corresponding to a carbon dioxide emission unit that represents the amount of carbon dioxide emission per product of weight and distance; and adding up the carbon dioxide emission amounts for each of the vehicles located within the area to calculate a total carbon dioxide emission amount emitted by the plurality of vehicles traveling on the toll road in the area in that unit time.

[0008] The program of the present disclosure causes a computer to execute the following steps when calculating the total carbon dioxide emissions emitted by multiple vehicles traveling on a toll road within a specified area for each specified unit time: acquiring, for each vehicle, the time of entry into the toll road, the vehicle type, and the time of exiting the area; calculating carbon dioxide emissions for each of the multiple vehicles located within the area based on a value corresponding to the weight of each of the vehicles based on the vehicle type, a value corresponding to the distance traveled in the unit time, and a value corresponding to a carbon dioxide emission unit that represents the amount of carbon dioxide emissions per product of weight and distance; and adding up the carbon dioxide emissions for each of the multiple vehicles located within the area to calculate the total carbon dioxide emissions emitted by the multiple vehicles traveling on the toll road in the area in that unit time. Effect of the Invention

[0009] According to the carbon dioxide emission calculation system, carbon dioxide emission calculation method, and program disclosed herein, the total carbon dioxide emission of multiple vehicles can be appropriately calculated. [Brief description of the drawings]

[0010] [Figure 1] 1 is a block diagram illustrating a schematic configuration example of a carbon dioxide emission calculation system according to an embodiment of the present disclosure. [Diagram 2] 1 is a block diagram showing a configuration example of a toll booth device according to an embodiment of the present disclosure. FIG. [Diagram 3] 2 is a schematic diagram showing an example of the configuration of log data generated by an electronic toll collection device according to an embodiment of the present disclosure. FIG. [Figure 4] 2 is a schematic diagram illustrating an example of the configuration of log data generated by the vehicle type discrimination device according to the embodiment of the present disclosure. FIG. [Diagram 5] 1 is a block diagram showing a configuration example of an intensive monitoring device according to an embodiment of the present disclosure. [Figure 6] 2 is a schematic diagram illustrating a configuration example of traveling vehicle information according to an embodiment of the present disclosure. FIG. [Figure 7] FIG. 13 is a schematic diagram illustrating an example of calculation of a carbon dioxide emission amount by a calculation unit according to an embodiment of the present disclosure. [Figure 8] FIG. 2 is a schematic diagram showing an example of a CO2 emission intensity according to an embodiment of the present disclosure. [Figure 9] 10 is a flowchart illustrating an example of the operation of the intensive monitoring device according to an embodiment of the present disclosure. [Figure 10] 11 is a flowchart illustrating an example of the operation of a processing unit according to an embodiment of the present disclosure. [Figure 11] FIG. 1 is a schematic block diagram illustrating an example configuration of a computer according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, a carbon dioxide emission calculation system, a carbon dioxide emission calculation method, and a program according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 10. FIG. 1 is a block diagram showing a schematic configuration example of a carbon dioxide emission calculation system according to an embodiment of the present disclosure. FIG. 2 is a block diagram showing a configuration example of a toll booth device according to an embodiment of the present disclosure. FIG. 3 is a schematic diagram showing a configuration example of log data generated by an electronic toll collection device according to an embodiment of the present disclosure. FIG. 4 is a schematic diagram showing a configuration example of log data generated by a vehicle type discrimination device according to an embodiment of the present disclosure. FIG. 5 is a block diagram showing a configuration example of an intensive monitoring device according to an embodiment of the present disclosure. FIG. 6 is a schematic diagram showing a configuration example of running vehicle information according to an embodiment of the present disclosure. FIG. 7 is a schematic diagram showing a calculation example of carbon dioxide emission by a calculation unit according to an embodiment of the present disclosure. FIG. 8 is a schematic diagram showing an example of a CO2 emission intensity according to an embodiment of the present disclosure. FIG. 9 is a flowchart showing an operation example of an intensive monitoring device according to an embodiment of the present disclosure. FIG. 10 is a flowchart showing an operation example of a processing unit according to an embodiment of the present disclosure. Note that the same or corresponding configurations in each drawing are designated by the same reference numerals and the description will be omitted as appropriate.

[0012] As shown in FIG. 1, the carbon dioxide emission calculation system 1 includes an aggregate monitoring device 2. The carbon dioxide emission calculation system 1 shown in FIG. 1 is a system that calculates the total carbon dioxide emission emitted by a plurality of vehicles 7-1, 7-2, 7-3, ... that travel on a toll road 6 within a jurisdiction 5, which is a predetermined area, for each predetermined unit time. Here, the toll road 6 is an expressway, a general toll road, etc. In the example shown in FIG. 1, toll gate devices 3-1, toll gate equipment 3-2, toll gate equipment 3-3, and toll gate equipment 3-4 are installed at toll gates at the entrances and exits of the toll road 6, such as interchanges. In the example shown in FIG. 1, the toll gate equipment 3-1 is installed at a toll gate at one end of the jurisdiction 5, and the toll gate equipment 3-4 is installed at a toll gate at the other end of the jurisdiction 5. The toll gate equipment 3-2 and the toll gate equipment 3-3 are installed at an interchange, a smart interchange, or the like located in the middle of the toll road 6. The vehicles 7-1, 7-2, and 7-3 are equipped with on-board units 8-1, 8-2, and 8-3, respectively, for electronic toll collection devices such as ETC (registered trademark). The toll gate device 3-1, toll gate equipment 3-2, toll gate device 3-3, and toll gate device 3-4 are collectively referred to as toll gate device 3. The vehicles 7-1, 7-2, and 7-3 are collectively referred to as vehicle 7. The on-board units 8-1, 8-2, and 8-3 are collectively referred to as on-board unit 8. In the example shown in FIG. 1, the centralized monitoring device 2 is communicatively connected to each toll gate device 3 via a dedicated line 4, and collects log data 30 from each toll gate device 3.

[0013] As shown in FIG. 2, the toll gate device 3 includes, for example, a vehicle type discrimination device 31, an electronic toll collection device 32, and a communication device 33. The vehicle type discrimination device 31 includes a number plate (NP) recognition device 311, a footboard 312, and a vehicle detector 313. The electronic toll collection device 32 includes, for example, an electronic toll collection antenna 321. The NP recognition device 311 recognizes information displayed on the number plate (automobile registration number plate) of the vehicle 7 passing through the lane corresponding to the toll gate device 3 using image processing technology or the like. The footboard 312 recognizes the axles of the vehicle 7 passing through the lane corresponding to the toll gate device 3, for example recognizing the number of axles. The vehicle detector 313 includes, for example, a transmission type or reflection type photodetector, and detects the vehicle 7 at a predetermined position in the toll gate. The vehicle type discrimination device 31 determines the vehicle type of the vehicle 7 based on the recognition result of the number plate by the NP recognition device 311, the recognition result of the number of axles by the footboard 312, and the like. Meanwhile, the electronic toll collection antenna 321 performs wireless communication with the vehicle-mounted unit 8. The electronic toll collection device 32 performs a process of collecting tolls for the toll road 6 from the vehicle 7 by performing wireless communication with the vehicle-mounted unit 8 at the entrance and exit of the toll gate. The communication device 33 transmits and receives predetermined signals to and from the aggregation monitoring device 2, etc. via the dedicated line 4.

[0014] 3 shows an example of the structure of log data 30 (shown as log data 30a in FIG. 3) transmitted from the tollgate device 3 to the intensive monitoring device 2 when a predetermined communication is performed between the electronic toll collection antenna 321 and the vehicle-mounted device 8. The log data 30a includes a tollgate ID (identification information) 30a1, an entry time 30a2 or an exit time 30a3, and vehicle information 30a4. The tollgate ID 30a1 is identification information of the tollgate (and lane) where the tollgate device 3 is installed. The entry time 30a2 indicates the time when the vehicle 7 entered the toll road 6 when the tollgate device 3 is installed at the entrance of the toll road 6. The exit time 30a3 indicates the time when the vehicle 7 exited the toll road 6 when the tollgate device 3 is installed at the exit of the toll road 6. The vehicle information 30a4 is, for example, information registered in advance in the vehicle-mounted device 8, and includes NP information 30a41, vehicle-mounted device ID 30a42, vehicle type 30a43, fuel type 30a44, vehicle weight 30a45, maximum load capacity 30a46, etc. The NP information 30a41 is license plate information. The vehicle-mounted device ID 30a42 is identification information of the vehicle-mounted device 8. The vehicle type type 30a43 is information indicating the type of vehicle 7 (for example, classification such as light vehicle, small, normal, large special, etc.). The fuel type 30a44 is information indicating the type of fuel, for example, gasoline, diesel, liquefied petroleum gas, electricity, hydrogen, etc. The vehicle weight 30a45 is the weight of the vehicle 7. The maximum load capacity 30a46 is the maximum load capacity of the vehicle 7.

[0015] FIG. 4 shows an example of the configuration of log data 30 (shown as log data 30b in FIG. 4) transmitted from the tollgate device 3 to the centralized monitoring device 2 based on information recognized by the vehicle type discrimination device 31 for a vehicle 7 not equipped with an on-board device 8. The log data 30b includes a tollgate ID (identification information) 30b1, an entry time 30b2 or an exit time 30b3, and vehicle information 30b4. The tollgate ID 30b1 is identification information of the tollgate (and lane) where the tollgate device 3 is installed. The entry time 30b2 indicates the time when the vehicle 7 entered the toll road 6 when the tollgate device 3 is installed at the entrance of the toll road 6. The exit time 30b3 indicates the time when the vehicle 7 exited the toll road 6 when the tollgate device 3 is installed at the exit of the toll road 6. The vehicle information 30b4 includes NP information 30b41, an on-board device ID 30b42, and the like. The NP information 30b41 is license plate information. The vehicle type 30b43 is information indicating the type of the vehicle 7 (for example, classification such as light vehicle, small vehicle, normal vehicle, large special vehicle, etc.) determined based on the license plate information or the like.

[0016] The log data 30 (log data 30a and 30b) may also include information related to toll collection, information indicating the details of the abnormal event that occurred, etc. The log data 30 may be generated and transmitted for each vehicle 7, or may be generated and transmitted for each of multiple vehicles 7.

[0017] 5 shows a configuration example of the intensive monitoring device 2. The intensive monitoring device 2 can be configured, for example, using a computer such as a server and its peripheral devices. The intensive monitoring device 2 includes a communication unit 21, an acquisition unit 22, a calculation unit 23, an addition unit 24, a processing unit 25, and a storage unit 20 as a functional configuration configured by a combination of hardware such as a computer and its peripheral devices, and software such as a program executed by the computer. The storage unit 20 stores log data 30, traveling vehicle information 25, basic unit information 26, calculation result information 27, and the like.

[0018] For example, the communication unit 21 transmits and receives a predetermined signal to and from the communication device 33 of the toll gate device 3 in order to collect the log data 30 from the toll gate device 3 , and stores the received log data 30 in the memory unit 20 .

[0019] The acquisition unit 22 acquires, for each vehicle 7, the time of entry 30a2 or 30b2 into the jurisdiction 5 (within a specified area) of the toll road 6, the vehicle type 30a42 or 30b42, and the time of exit 30a3 or 30b3 from the jurisdiction 5 from the log data 30 received by the communication unit 21, and registers this in the traveling vehicle information 25 or updates the contents of the traveling vehicle information 25.

[0020] FIG. 6 shows an example of the configuration of the traveling vehicle information 25. The traveling vehicle information 25 is information about a vehicle 7 traveling within the jurisdiction 5 of the toll road 6 (before entering, exiting, or retiring) or within a predetermined time after exiting, for example. In the example shown in FIG. 6, the traveling vehicle information 25 includes, as NP information, information for identifying the vehicle 7, an on-board device ID, an entry time, an exit time, and a vehicle type type associated with the NP information for each vehicle 7. However, the on-board device ID may not be included. The traveling vehicle information 25 is information that is updated every predetermined unit time. The unit time can be, for example, one to several minutes. However, the value of the unit time is not limited to this example. In this embodiment, the carbon dioxide emission amount is calculated for each unit time. In the example shown in FIG. 6, each vehicle 7 with NP information "A" and "B" has already exited the toll road 6 within the jurisdiction 5, and each vehicle 7 with NP information "C", "D", and "E" is traveling on the toll road 6 within the jurisdiction 5 (or is stopped at a service area, etc.). In this case, the vehicles 7 with NP information "C", "D", and "E" are located on the toll road 6 within the jurisdiction 5. Note that "xxx" and "XXXX" represent any character string.

[0021] The calculation unit 23 calculates the carbon dioxide emissions for each of a plurality of vehicles 7 located within the jurisdiction 5, based on a value corresponding to the weight based on the vehicle type of each vehicle 7, a value corresponding to the travel distance per unit time, and a value corresponding to the carbon dioxide emission unit expressing the amount of carbon dioxide emissions per product of the weight and distance. Fig. 7 shows an example of calculation of the carbon dioxide (CO2) emissions per unit time and for each vehicle 7 by the calculation unit 23.

[0022] In the example shown in Fig. 7, CO2 emission amount per unit time 101 is the emission amount per one vehicle 7, and is calculated by multiplying total vehicle weight 102, travel distance in unit time 103, and CO2 emission unit weight 104. For example, an average value preset for each vehicle type can be used as total vehicle weight 102. For example, a predetermined value such as T1 ton for a light vehicle, T2 ton for a small vehicle, T3 ton for a normal vehicle, and T4 ton for a large special vehicle (here, for example, T4>T3>T2>T1) can be used.

[0023] Total vehicle weight 102 corresponds to a value corresponding to the weight based on the vehicle type of each vehicle 7. However, the value corresponding to the weight based on the vehicle type may be the vehicle weight, or a value obtained by adding a certain percentage of the maximum load capacity to the vehicle weight, etc. Travel distance per unit time 103 corresponds to a value corresponding to the travel distance per unit time. CO2 emission intensity 104 corresponds to a value corresponding to a carbon dioxide emission intensity that represents the amount of carbon dioxide emitted per unit of weight and distance.

[0024] The travel distance 103 in a unit time is a value based on the product of the average vehicle speed and the unit time. Here, the average vehicle speed may be, for example, a value that is predetermined based on past results, a value that is predicted based on past results, or an average value based on the most recent results. The average value based on the most recent results may be, for example, the average value of the average vehicle speed calculated based on the entry time and exit time of the vehicle 7 with NP information "A" and the distance from the entry position to the exit position of the vehicle 7 with NP information "B" in the example shown in FIG. 6.

[0025] The CO2 emission intensity 104 includes a plurality of values ​​set for each vehicle type, for example, as in the intensity information 26 shown in Fig. 8, and is a coefficient for calculating the amount of CO2 emitted when a vehicle 7 with a total vehicle weight 102 travels a travel distance 103. The CO2 emission intensity 104 is a value obtained by dividing the amount of CO2 emitted (weight g) by the product of t (tons) and km (kilometers). In the example shown in Fig. 8, it is set for each vehicle type (light car, small, normal, large special).

[0026] The summing unit 24 sums up the carbon dioxide emission amount 101 per unit time for each vehicle 7 located within the jurisdiction 5, to calculate the total carbon dioxide emission amount emitted by the multiple vehicles 7 traveling on the toll road 6 within the jurisdiction 5 in that unit time. The summing unit 24 stores (accumulates) the calculated total carbon dioxide emission amount in the memory unit 20 as calculation result information 27 in association with time information on the start or end of the unit time.

[0027] The processing unit 25 executes a predetermined process based on the calculation result information 27. The predetermined process is, for example, an increase or decrease in the toll fee for the toll road 6. For example, when the amount of carbon dioxide emissions in the entire jurisdiction 5 over multiple unit times is equal to or greater than a predetermined threshold, the toll fee can be increased, and when the amount is less than the threshold, the toll fee can be decreased.

[0028] Next, an example of the operation of the intensive monitoring device 2 will be described with reference to Fig. 9 and Fig. 10. Fig. 9 shows an example of the processing of the intensive monitoring device 2 executed at each unit cycle. When the processing shown in Fig. 9 is started, the acquisition unit 22 (or the communication unit 21) collects log data 30 within the jurisdiction 5 (step S11). Next, the acquisition unit 22 updates the traveling vehicle information 25 based on the collected log data 30 (step S12). In step S12, information of a vehicle 7 that has newly entered a toll road 6 within the jurisdiction 5 is added to the traveling vehicle information 25, and information of a vehicle 7 that has exited a toll road 6 within the jurisdiction 5 is deleted from the traveling vehicle information 25.

[0029] Next, the calculation unit 23 calculates the carbon dioxide emission amount of each vehicle 7 located within the jurisdiction 5 for each vehicle 7 (step S13).

[0030] Next, the summing unit 24 sums up the carbon dioxide emission amounts of a plurality of vehicles located within the jurisdiction 5 to calculate the total carbon dioxide emission amount in the unit time, and stores (accumulates) the calculation result as calculation result information 27 (step S14).

[0031] Through the above process, the intensive monitoring device 2 can calculate the total carbon dioxide emissions emitted by multiple vehicles traveling on the toll road 6 within the jurisdiction 5, which is a specified area, for each specified unit time, based on the vehicle type of each vehicle 7. The total carbon dioxide emissions emitted by multiple vehicles 7 may be, for example, the total of the emissions of all vehicles 7 after entry and before exit, or a vehicle 7 that has entered and before exiting may be excluded from the calculation if a specified time has passed since entering. In this case, for example, a vehicle 7 that has been parked for a long time can be excluded from the calculation.

[0032] 10 shows an example of the processing of the processing unit 25 executed for each of a plurality of unit periods. When the processing shown in FIG. 10 is started, the processing unit 25 acquires the total carbon dioxide emission amount of the plurality of vehicles 7 located within the jurisdiction 5 for a plurality of unit periods from the calculation result information 27 (step S21). Next, the processing unit 25 judges whether or not the integrated value of the total carbon dioxide emission amount for the plurality of unit periods is equal to or greater than a predetermined threshold value (step S22). If the integrated value of the total carbon dioxide emission amount for the plurality of unit periods is equal to or greater than a predetermined threshold value (step S22: YES), the processing unit 25 proposes, for example, an external server or the like that manages the fee system to raise the fee within the jurisdiction 5 (step S23). On the other hand, if the integrated value of the total carbon dioxide emission amount for the plurality of unit periods is less than the predetermined threshold value (step S22: NO), the processing unit 25 proposes, for example, an external server or the like that manages the fee system to lower the fee within the jurisdiction 5 (step S24).

[0033] (Action and effect) According to this embodiment, the total carbon dioxide emissions of a plurality of vehicles 7 located on a toll road 6 within the jurisdiction 5 can be calculated appropriately.

[0034] Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to the above-mentioned embodiment, and includes design changes and the like within the scope of the gist of the present invention. For example, each configuration of the intensive monitoring device 2 may be configured using a computer in a virtual space. Furthermore, the carbon dioxide emission calculation system 1 according to the present disclosure may further include some or all of the configuration of the toll gate device 3 in addition to the configuration of the intensive monitoring device 2.

[0035] Computer Configuration FIG. 11 is a schematic block diagram illustrating a computer configuration according to at least one embodiment. The computer 90 comprises a processor 91, a main memory 92, a storage 93, and an interface 94. The above-mentioned integrated monitoring device 2 is implemented in a computer 90. The operations of each of the above-mentioned processing units are stored in the form of a program in a storage 93. A processor 91 reads the program from the storage 93, loads it in a main memory 92, and executes the above-mentioned processing in accordance with the program. The processor 91 also secures storage areas in the main memory 92 corresponding to each of the above-mentioned storage units in accordance with the program.

[0036] The program may be for realizing a part of the functions to be performed by the computer 90. For example, the program may be for realizing the functions by combining with other programs already stored in the storage or by combining with other programs implemented in other devices. In another embodiment, the computer may include a custom LSI (Large Scale Integrated Circuit) such as a PLD (Programmable Logic Device) in addition to or instead of the above configuration. Examples of PLDs include PAL (Programmable Array Logic), GAL (Generic Array Logic), CPLD (Complex Programmable Logic Device), and FPGA (Field Programmable Gate Array). In this case, some or all of the functions to be realized by the processor may be realized by the integrated circuit.

[0037] Examples of the storage 93 include a hard disk drive (HDD), a solid state drive (SSD), a magnetic disk, a magneto-optical disk, a compact disc read only memory (CD-ROM), a digital versatile disc read only memory (DVD-ROM), and a semiconductor memory. The storage 93 may be an internal medium directly connected to the bus of the computer 90, or an external medium connected to the computer 90 via an interface 94 or a communication line. In addition, when the program is distributed to the computer 90 via a communication line, the computer 90 that receives the program may load the program into the main memory 92 and execute the above-mentioned process. In at least one embodiment, the storage 93 is a non-transitory tangible storage medium.

[0038] <Additional Notes> The carbon dioxide emission calculation system 1 described in the above embodiment can be understood, for example, as follows.

[0039] (1) A carbon dioxide emission calculation system 1 according to a first embodiment is a system for calculating the total carbon dioxide emission emitted by a plurality of vehicles traveling on a toll road in a predetermined area for each predetermined unit time, and includes an acquisition unit 22 for acquiring the entry time of the toll road into the area, the vehicle type, and the exit time from the area for each vehicle, a calculation unit 23 for calculating the carbon dioxide emission for each of the plurality of vehicles located in the area based on a value corresponding to the weight based on the vehicle type of each vehicle, a value corresponding to the travel distance in the unit time, and a value corresponding to the carbon dioxide emission unit expressing the carbon dioxide emission per product of the weight and distance, and an addition unit 24 for adding up the carbon dioxide emission for each of the plurality of vehicles located in the area to calculate the total carbon dioxide emission emitted by the plurality of vehicles traveling on the toll road in the area in the unit time. According to this embodiment and each of the following embodiments, the total carbon dioxide emission of a plurality of vehicles can be appropriately calculated.

[0040] (2) A carbon dioxide emission calculation system 1 according to a second aspect is the carbon dioxide emission calculation system 1 of (1), in which the distance traveled per unit time is a value based on the product of a predetermined average speed of the vehicle and the unit time.

[0041] (3) A carbon dioxide emission calculation system 1 according to a third aspect is the carbon dioxide emission calculation system 1 of (2), wherein the average speed is a value calculated based on the entry time and the exit time of the same vehicle and the distance from the entry position to the exit position. [Explanation of symbols]

[0042] 1. Carbon dioxide emissions calculation system 2. Centralized monitoring device 22…Acquisition part 23...Calculation section 24…Combination section

Claims

1. A system for calculating a total amount of carbon dioxide emissions emitted by a plurality of vehicles traveling on a toll road in a specified area per specified unit time, comprising: an acquisition unit that acquires, for each of the vehicles, a time of entry into the area of ​​the toll road, a vehicle type, and a time of exit from the area; a calculation unit that calculates carbon dioxide emissions for each of the plurality of vehicles located within the area based on a value corresponding to a weight based on the vehicle type of each of the vehicles, a value corresponding to a travel distance in the unit time, and a value corresponding to a carbon dioxide emission unit that represents an amount of carbon dioxide emissions per unit of weight and distance; an accumulator that calculates a total amount of carbon dioxide emissions emitted by the plurality of vehicles traveling on the toll road in the area in the unit time by accumulating the carbon dioxide emissions of each of the plurality of vehicles located in the area; A carbon dioxide emission calculation system comprising:

2. The travel distance per unit time is a value based on the product of a predetermined average speed of the vehicle and the unit time. The carbon dioxide emission calculation system according to claim 1 .

3. The average speed is a value calculated based on the entry time, the exit time, and the distance from the entry position to the exit position of the same vehicle. The carbon dioxide emission calculation system according to claim 2 .

4. A method for calculating a total amount of carbon dioxide emissions emitted by a plurality of vehicles traveling on a toll road in a specified area per specified unit time, comprising the steps of: acquiring, for each of the vehicles, a time of entry into the area of ​​the toll road, a vehicle type, and a time of exit from the area; calculating carbon dioxide emissions for each of the plurality of vehicles located within the area based on a value corresponding to the weight of each of the vehicles based on the vehicle type, a value corresponding to the travel distance in the unit time, and a value corresponding to a carbon dioxide emission unit that represents the amount of carbon dioxide emissions per unit of weight and distance; A step of calculating a total amount of carbon dioxide emissions emitted by the plurality of vehicles traveling on the toll road in the area in the unit time by adding up the carbon dioxide emissions of the plurality of vehicles located in the area; A method for calculating carbon dioxide emissions, including:

5. When calculating the total amount of carbon dioxide emissions emitted by multiple vehicles traveling on toll roads in a specified area per specified unit time, acquiring, for each of the vehicles, a time of entry into the area of ​​the toll road, a vehicle type, and a time of exit from the area; calculating carbon dioxide emissions for each of the plurality of vehicles located within the area based on a value corresponding to the weight of each of the vehicles based on the vehicle type, a value corresponding to the travel distance in the unit time, and a value corresponding to a carbon dioxide emission unit that represents the amount of carbon dioxide emissions per unit of weight and distance; A step of calculating a total amount of carbon dioxide emissions emitted by the plurality of vehicles traveling on the toll road in the area in the unit time by adding up the carbon dioxide emissions of the plurality of vehicles located in the area; A program that causes a computer to execute the following.

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