CO2 reduction management system, vehicle terminal, vehicle, and program

Abstract

We provide a system, vehicle terminal, vehicle, and program that can accurately estimate the amount of CO2 reduction achieved by vehicles that do not have internal combustion engines and are driven by the user themselves, accurately grasp the degree of contribution to the Sustainable Development Goals (SDGs), and use this to manage CO2 reductions and provide services to users. [Solution] The CO2 reduction management system 100 comprises a management server 2 that communicates with a vehicle terminal 1 installed in each rental vehicle, and the vehicle terminal has a travel information acquisition means by which the user acquires travel start information and travel end information, and a mileage information acquisition means that acquires mileage information from a mileage calculation means that calculates the mileage of the rental vehicle over a specified period of time, and the management server has a receiving means that receives mileage-related information from the vehicle terminal, and a CO2 reduction calculation means that uses the distance traveled by the rental vehicle to calculate the CO2 reduction amount for the distance traveled if it were traveled by a vehicle equipped with an internal combustion engine.

Description

[Technical Field]

[0001] The present invention relates to a CO2 reduction management system, a vehicle terminal, a vehicle, and a program that quantify the CO2 reduction amount by vehicles that do not have an internal combustion engine and are driven by users themselves, and use the quantification for management purposes. [Background technology]

[0002] Although the achievement of the Sustainable Development Goals (SDGs) has been talked about for a long time, it is still difficult for individuals to grasp and realize the degree of achievement. Nevertheless, various local governments and companies are making efforts to make individuals realize their contribution to the SDGs through their own actions, such as by using bicycles without internal combustion engines, electrically assisted bicycles, and electric motorcycles. For example, Patent Document 1 describes a system that allows individuals to grasp the degree of contribution to the SDGs when using vehicles without internal combustion engines. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-18710 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the system described in Patent Document 1 does not cover the assessment of the degree of contribution to the SDGs of bicycles without internal combustion engines, electrically assisted bicycles, and electric motorcycles. This is because the system described in Patent Document 1 requires a Near Field Communication (NFC) function, a touch payment terminal installed at automatic ticket gates at public transportation train stations, to calculate the travel distance and calculate the CO2 emission reduction effect, and therefore cannot be used in situations where automatic ticket gates are not installed. Furthermore, even if one attempts to convert the CO2 emissions resulting from traveling by train into the CO2 emissions resulting from traveling by car, the route traveled by train along the tracks and the route traveled by car along the road are typically different, resulting in unavoidable errors in the calculation of the CO2 emission reduction effect. This does not fully meet the needs of users who want to accurately assess the degree of contribution to the SDGs.

[0005] The present invention addresses these issues by providing a CO2 reduction management system, vehicle terminal, vehicle, and program that can accurately estimate the amount of CO2 reduction achieved by vehicles that do not have internal combustion engines and are driven by the user themselves, accurately grasp the degree of contribution to the SDGs, and use the information to manage CO2 reductions and provide services to users. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the CO2 reduction amount management system according to the present invention is a CO2 reduction amount management system that calculates the amount of CO2 reduction caused by traveling in a rental vehicle that does not have an internal combustion engine and is driven by the user himself, and includes a vehicle terminal installed in each of a plurality of rental vehicles, and a management server that communicates with the vehicle terminal, and the vehicle terminal includes a travel information acquisition means that acquires travel start information when the user starts traveling from a travel start location and travel end information when the user ends traveling at a travel end location, and a travel distance information acquisition means that acquires travel distance information from a travel distance calculation means that calculates the travel distance of the rental vehicle for a predetermined period of time. a mileage-related information transmitting means for transmitting mileage-related information based on the mileage information to the management server; and the mileage calculation means calculates the mileage of the rental vehicle for a predetermined period based on the output of a tachometer attached to a tire rotation axis of the rental vehicle, The management server has a receiving means for receiving at least mileage-related information from the vehicle terminal, and a CO2 reduction calculation means for calculating the amount of CO2 reduction based on the received mileage-related information, and the CO2 reduction calculation means is characterized in that it uses at least the distance traveled when traveling from the start location to the end location of the trip by a rental vehicle to calculate the total CO2 reduction amount for the distance traveled if the trip were made by a vehicle equipped with an internal combustion engine. Here, "vehicles" that are "driven by the user and do not have an internal combustion engine" refer to vehicles that do not have an engine, such as bicycles, electrically assisted bicycles, and electric motorcycles, and that do not emit CO2 or emit only small amounts of CO2. In addition, the term "rental vehicle" is used in a broad sense to refer to both a rental vehicle in the narrow sense, where the rental location and return location of the vehicle are the same, and a shared vehicle, where the rental location and return location of the vehicle may be different. Furthermore, "from the start point of the trip to the end point of the trip" refers to the start point to the end point of the rental period in a broad sense (including the sharing period), and temporary parking during that period for purposes such as taking a break or stopping somewhere is not defined as the end of the trip. Furthermore, "at least" "calculating the total CO2 reduction" means that it is mandatory to calculate the total amount of CO2 reduction from the start of the trip to the end of the trip. Therefore, this does not preclude the optional calculation of partial CO2 reductions at intermediate stages.

[0007] Furthermore, in order to solve the above problem, the vehicle terminal of the present invention is mounted on a rental vehicle that does not have an internal combustion engine and is driven by the user himself, and communicates with a management server that uses the travel distance when traveling from a travel start location to a travel end location in the rental vehicle to calculate the amount of CO2 reduction for the travel distance if the travel were to be made in a vehicle with an internal combustion engine, and includes: travel information acquisition means that acquires travel start information when the user starts traveling from the travel start location and travel end information when the user ends traveling at the travel end location; and travel distance information acquisition means that acquires travel distance information from a travel distance calculation means that calculates the travel distance of the rental vehicle for a predetermined period of time; a mileage-related information transmitting means for transmitting mileage-related information based on the mileage information to the management server; A display means and a CO2 reduction amount receiving means for receiving the calculated CO2 reduction amount from the management server are provided. 、 The travel distance calculation means calculates the travel distance of the rental vehicle for a predetermined period based on the output of a tachometer attached to the tire rotation axis of the rental vehicle. It is characterized by: Here, the definitions of "vehicle not equipped with an internal combustion engine and driven by the user", "rented vehicle", and "from the start location of the journey to the end location of the journey" are the same as those explained above.

[0008] In order to solve the above problem, the vehicle according to the present invention is a vehicle equipped with the above vehicle terminal. The definitions of "vehicle without an internal combustion engine, driven by the user", "rental vehicle", and "from the start location of the movement to the end location of the movement" are as described above.

[0011] In order to solve the above problem, the program according to the present invention is a program for a rental vehicle that does not have an internal combustion engine and is driven by the user himself. A rental vehicle with a tachometer attached to the tire rotation axis. a movement start information acquisition step of acquiring movement start information by which the user starts movement from the movement start location to a computer of a vehicle terminal that communicates with a management server that is equipped with a management server and that calculates the amount of CO2 reduction for the movement distance assumed to be traveled by a vehicle equipped with an internal combustion engine, using the movement distance when the rental vehicle travels from the movement start location to the movement end location; a predetermined period mileage calculation step of calculating a mileage of the rental vehicle for a predetermined period based on the output of the tachometer; A movement end information acquisition step for acquiring movement end information that indicates that movement has ended at the movement end location, move Calculate the distance traveled move Mileage calculation step, calculated move The program is characterized by executing a step of transmitting the mileage to a management server. Here, the definitions of "vehicle not equipped with an internal combustion engine and driven by the user", "rented vehicle", and "from the start location of travel to the end location of travel" are the same as those described above. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a system configuration diagram of a CO2 reduction amount management system according to a first embodiment of the present invention. [Figure 2] 2 is a functional block diagram showing an example of a vehicle terminal in the CO2 reduction amount management system according to the first embodiment of the present invention. FIG. [Figure 3] FIG. 2 is an explanatory diagram showing an example of a display screen of a vehicle terminal in the CO2 reduction amount management system according to the first embodiment of the present invention. [Figure 4] 2 is a functional block diagram showing an example of a management server in the CO2 reduction amount management system according to the first embodiment of the present invention. FIG. [Figure 5] 3 is a flowchart showing the operation processing of the vehicle terminal and the management server in the CO2 reduction amount management system according to the first embodiment of the present invention. FIG. [Figure 6] 4 is a flowchart showing the operation process of the vehicle terminal and the mobile terminal in the CO2 reduction amount management system according to the first embodiment of the present invention. FIG. [Figure 7] FIG. 10 is a system configuration diagram of a CO2 reduction amount management system according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a functional block diagram showing an example of a vehicle terminal in a CO2 reduction amount management system according to a second embodiment of the present invention. [Figure 9] FIG. 10 is a system configuration diagram of a CO2 reduction amount management system according to a third embodiment of the present invention. [Figure 10] FIG. 10 is a functional block diagram showing an example of a vehicle terminal in a CO2 reduction amount management system according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] An example of an embodiment of a CO2 reduction management system according to the present invention will be described below with reference to the drawings. However, the drawings below have been created for explanatory purposes, and for the sake of clarity, components not necessary for the explanation may be intentionally omitted. Also, components may be intentionally drawn larger or smaller for the purpose of explanation, and the drawings are not drawn to an exact scale. In the following description, the same reference numerals in different drawings indicate parts with the same function, and duplicate explanations in each drawing will be omitted as appropriate.

[0014] First Embodiment FIG. 1 is a system configuration diagram of a CO2 reduction management system according to a first embodiment of the present invention. FIG. 2 is a functional block diagram showing an example of a vehicle terminal in the CO2 reduction management system according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram showing an example of a display screen of a vehicle terminal in the CO2 reduction management system according to the first embodiment of the present invention. FIG. 4 is a functional block diagram showing an example of a management server in the CO2 reduction management system according to the first embodiment of the present invention.

[0015] (Overall system configuration) As shown in FIG. 1, a CO2 reduction management system 100 according to the first embodiment includes a vehicle terminal 1 and a management server 2. The vehicle terminal 1 and the management server 2 are connected via a mobile phone communication network and / or an internet communication network. The vehicle terminal 1 is configured to communicate with a mobile terminal 3 carried by a user using a predetermined communication method such as Bluetooth (registered trademark) or infrared communication. The management server 2 is connected to an administrator terminal (not shown), such as a laptop PC used by an administrator, via the internet communication network. Although the mobile terminal 3 is a component of the first embodiment, as shown in FIG. 1, the CO2 reduction management system 100 is enclosed in parentheses. Therefore, the mobile terminal 3 is not included in the components of the CO2 reduction management system according to the present invention. In other words, the functions of the mobile terminal 3 may be performed by other means. This will be described later in the explanation of the modified example.

[0016] The vehicle terminal 1 is an IoT module attached near the center of the handlebars of rental vehicles without engines, such as bicycles, electrically assisted bicycles, and electric motorcycles. In addition to controlling the locking and unlocking of the vehicle body, the vehicle terminal 1 acquires information from a tachometer RC attached to the vehicle's axle and displays information such as speed and mileage on its own touch panel display.

[0017] The management server 2 receives the mileage-related information from the vehicle terminal 1 and calculates the amount of CO2 reduction based on the received mileage-related information. The calculation method uses the distance traveled when traveling from the start location to the end location in a rental vehicle to calculate the amount of CO2 reduction for the distance traveled if the travel were made in a vehicle equipped with an internal combustion engine.

[0018] The mobile terminal 3 may be a mobile communication terminal such as a smartphone or a tablet terminal, or may be a personal computer, but in the first embodiment, the mobile terminal 3 is a smartphone and is equipped with a touch panel, a camera, a short-range wireless communication means, etc.

[0019] (Vehicle terminal configuration) FIG. 2 is a block diagram showing a schematic configuration of the vehicle terminal 1 shown in FIG. 1, and is drawn from the perspective of a functional block diagram rather than a hardware configuration. FIG. 3 is an explanatory diagram showing an example of a display screen of the vehicle terminal. The configuration of the vehicle terminal 1 will be described below with reference to FIGS. 2 and 3. As shown in FIG. 2, the vehicle terminal 1 includes a touch panel 11, a mileage information acquisition unit 12, a memory unit 13, a communication unit 14, and a control unit 15.

[0020] The touch panel 11 is composed of a display equipped with a touch sensor. The display may be a liquid crystal display, an organic EL display, or the like. The touch sensor is, for example, a capacitance-type touch sensor that detects a change in capacitance at a position in the display area where a user's finger or the like touches. The touch panel 11 displays various images under the control of the control unit 15. However, the example here is merely an example, and it is also possible to use, for example, a simple display without a touch sensor and a separate mechanical key.

[0021] The mileage information acquisition unit 12 is mainly composed of a tachometer information acquisition unit 12a and an accumulated mileage storage unit 12b. The tachometer information acquisition unit 12a acquires information from a tachometer attached to the axle of the vehicle's tires. In other words, it acquires the accumulated tire rotation count of the vehicle at any time. If the accumulated tire rotation count can be acquired, it is possible to calculate the mileage for a predetermined period by calculating (the accumulated tire rotation count of the vehicle) x (tire circumference) for a predetermined period. Note that the mileage may also be calculated by acquiring information on the instantaneous tire rotation count of the vehicle and integrating it.

[0022] While GPS positioning technology is frequently used to calculate travel distance, there is a trade-off between increasing the positioning interval and increasing communication costs and power consumption. Furthermore, GPS positioning technology also presents the problem of reduced travel distance calculation accuracy when communication is interrupted by obstacles such as tunnels. While inertial navigation units (INNUs) are used to supplement the distance measurement in passenger cars, installing a similar system in an IoT module installed in a light vehicle increases size, weight, and cost, making it undesirable. Furthermore, GPS positioning technology also presents the problem of reduced travel distance calculation accuracy when traveling uphill. Even if an altitude or tilt detection unit were used to supplement the distance measurement, an increase in size would be unavoidable. In this regard, the use of a tachometer is preferable because it allows for accurate travel distance calculation with a simple configuration. In particular, since the error is small in principle even when calculating the distance traveled between the start and end of the rental period, communication only at the start and end of the rental period does not affect the accuracy of the CO2 reduction calculation, which is the objective of this invention. This is a major advantage.

[0023] The storage unit 13 is configured with a non-volatile memory such as an eMMC (embedded multi media card) or a UFS (universal flash storage), etc. Under the control of the control unit 15, the storage unit 13 stores basic data such as the tire diameter length required for calculating the traveled distance.

[0024] The communication unit 14 communicates with the mobile terminal 3 using a predetermined communication method such as Bluetooth (registered trademark) or infrared communication. In addition, the communication unit 14 also includes a communication unit (not shown) such as 4G, 5G, or Wi-Fi (registered trademark) that is normally provided in a smartphone, and communicates with the management server 2 via a mobile phone communication network and / or an internet communication network.

[0025] The control unit 15 includes a display control unit 151 that controls the screen display of the touch panel 11, a movement start information acquisition unit 152 that acquires movement start information indicating when the user starts movement from a movement start location, a movement end information acquisition unit 153 that acquires movement end information indicating when the user ends movement at a movement end location, and a lock / unlock control unit 154 that controls the vehicle's key means. The movement start information acquisition unit 152 and the movement end information acquisition unit 153 together constitute a movement information acquisition means. Although not shown in the functional block diagram of FIG. 2, the control unit 15 includes, as its hardware configuration, a CPU and memory (ROM and RAM) connected to the CPU via a bus. The CPU is connected to the touch panel 11, the mileage information acquisition unit 12, the storage unit 13, and the communication unit 14 via the bus. The control unit 15 controls each unit connected to the CPU to perform various processes by the CPU executing various display programs, such as a mileage calculation program stored in the ROM and a speedometer display and a CO2 reduction amount display.

[0026] An example of the screen display of the touch panel 11 of the vehicle terminal 1 will be described with reference to FIG. 3, which is an explanatory diagram showing an example of the display screen of the vehicle terminal. Display area 111 is a speedometer that displays the speed based on information obtained from a tachometer attached to the axle of the vehicle. Display area 112 is an odometer that displays the cumulative distance traveled since the vehicle began operation. Display area 113 displays the elapsed time since the start of rental.

[0027] The display area 114 displays the CO2 reduction achieved by driving the vehicle. While the minimum requirement of the present invention is to quantify the CO2 reduction achieved when traveling from the start location to the end location in a rental vehicle, in the first embodiment, the CO2 reduction is calculated and displayed after a predetermined period of the rental period, such as one hour or two hours, to provide the user with information. However, as mentioned above, when using a tachometer, detailed measurement and calculation intervals for calculating the mileage are not required, as is the case with GPS positioning technology. The purpose of this calculation at predetermined intervals is solely to enhance the user's appeal. In other words, users can enjoy the joy of knowing that they are contributing to the SDGs by driving in near real time while driving.

[0028] (Administration Server Configuration) The management server 2 controls the overall operation of the CO2 reduction management system 100 by performing various information processing related to the calculation of CO2 reduction amounts, which is the core of CO2 reduction management. As shown in Fig. 4, the management server 2 is implemented in a computer system including a display unit 21, an operation unit 22, a communication unit 23, a CPU 24, a ROM 25, a RAM 26, a CO2 reduction calculation unit 27, etc., by causing the CPU 24 to execute a predetermined operating program that is stored in advance in the ROM 25 or a large-capacity storage unit (not shown).

[0029] The CPU 24 receives mileage-related information from the vehicle terminal 1 via the communication unit 23 and calculates the CO2 reduction amount based on the received mileage-related information. The calculation method uses the distance traveled by a rental vehicle from the start location to the end location to calculate the CO2 reduction amount relative to the distance traveled if the rental vehicle were equipped with an internal combustion engine. More specifically, the calculation is performed by multiplying the CO2 reduction amount by {(CO2 emission source coefficient for passenger cars, trucks, etc.) - (amount of electricity consumed on a full charge of an electrically assisted bicycle, electric motorcycle, etc.) / (mileage on a full charge) × (power plant CO2 emission source coefficient)} × rental mileage. Here, the CO2 emission source coefficient for passenger cars, trucks, etc. is the CO2 emissions per unit distance of a passenger car, etc., and the power plant CO2 emission source coefficient is the CO2 emissions from a power plant when a rental vehicle is fully charged. The rental mileage refers to the distance traveled by a rental vehicle from the start location to the end location. If the rental vehicle is a bicycle, the subtraction factor in the parentheses in the above formula can be set to zero.

[0030] The CPU 24 transmits the calculated CO2 reduction amount to the vehicle terminal 1 via the communication unit 23. This configuration allows the user to know their own SDG contribution in approximately real time while driving. However, this configuration is optional, and can be omitted if the main purpose is to award points according to the degree of SDG contribution or other management.

[0031] Although detailed description is omitted because it is not relevant to the features of the present invention, the CPU 24 also performs registration and management processes related to user information registered in advance by the user, and registration and management processes for user payment information. Furthermore, the CPU 24 also manages vehicle availability information for rentals, responds to inquiries from users, and processes reservations. However, this is merely an example, and the server that manages CO2 reductions and the server that manages reservations, etc., may be separate servers.

[0032] A large-capacity storage unit (not shown) stores and saves user information about registered users and the degree of contribution to the SDGs that have been achieved to date. Based on this information, the management server 2 performs processes such as disclosing the information the user requests and awarding points according to the degree of contribution to the SDGs. In addition, driving history and CO2 reduction history information linked to each individual vehicle are also stored and saved.

[0033] <Calculation Processing Operation of CO2 Reduction Amount in First Embodiment> The operation of the CO2 reduction calculation process in the CO2 reduction management system 100 will be described below. FIG. 5 is a flow diagram showing the CO2 reduction calculation process, which is an operational process of the vehicle terminal and management server in the CO2 reduction management system according to the first embodiment of the present invention. Some blocks showing the operation of the vehicle, rather than the control process of the vehicle terminal, are also shown. FIG. 6 is a flow diagram showing the vehicle rental and return process, which is an operational process of the vehicle terminal and mobile terminal in the CO2 reduction management system according to the first embodiment of the present invention. Note that horizontal solid arrows indicate communication between devices, and horizontal dotted arrows indicate capturing an image of the vehicle's two-dimensional code. First, the CO2 reduction calculation process will be described below with reference to FIG. 5.

[0034] (CO2 reduction calculation process) 5, in step S101, the vehicle terminal 1 acquires, in the movement start information acquisition unit 152, movement start information indicating that the user will start movement from a movement start location in accordance with a vehicle rental process executed in cooperation with the mobile terminal 3, which will be described later. When the movement start information is acquired, in step S102, information on the start-time accumulated mileage stored in the accumulated mileage storage unit 12b is transmitted to the management server 2 as mileage-related information. Meanwhile, in step S201, the management server 2 receives the information on the start-time accumulated mileage transmitted from the vehicle terminal 1 and temporarily stores the information.

[0035] In step S103, the vehicle terminal 1 receives an unlocking operation command. In the first embodiment, the unlocking operation command is received via the communication unit 14 as a signal transmitted from the mobile terminal 3. However, instead of or in addition to this, the control unit 15 may be configured to receive the unlocking operation command by operating the touch panel 11 of the vehicle terminal 1 itself. In other words, the unlocking operation may be configured to be operable either by the vehicle terminal or the smartphone. Upon receiving the unlocking operation command, the locking / unlocking control unit 154 executes the unlocking operation.

[0036] In step S104, when the vehicle starts moving, the vehicle's tires begin to rotate, and the tachometer attached to the vehicle's axle updates its value. If it is determined in step S105 that a predetermined period has elapsed, the tachometer information acquisition unit 12a acquires the integrated tire rotation count of the vehicle, and in response, in step S106, the mileage information acquisition unit 12 acquires the mileage for the predetermined period by calculating (integrated tire rotation count of the vehicle) x (tire circumference). The predetermined period here may be configured to be defined as a time, such as every 30 minutes or every hour, or may be configured to be defined as an amount of rotation or distance, such as every 10,000 tire rotations.

[0037] After acquiring the mileage in step S106, the control unit 15 of the vehicle terminal 1 calculates the accumulated mileage at any time, which becomes the new accumulated mileage, by adding the mileage for the predetermined period to the accumulated mileage up to that point. The calculated accumulated mileage at any time is overwritten and saved in the accumulated mileage memory unit 12b. At the same time, in step S107, the vehicle terminal 1 transmits information on the accumulated mileage at any time to the management server 2 as mileage-related information. Meanwhile, in step S202, the management server 2 receives the information on the accumulated mileage at any time transmitted from the vehicle terminal 1.

[0038] In step S203, the management server 2 calculates the distance traveled for a predetermined period of time by subtracting the cumulative distance traveled at the start from the cumulative distance traveled at any time. Then, in step S204, the CO2 reduction amount for a predetermined period of time is calculated by {(CO2 emission source coefficient for passenger cars, freight vehicles, etc.) - (amount of electricity consumed on a full charge of an electrically assisted bicycle, electric motorcycle, etc.) / (distance traveled on a full charge) x (CO2 emission source coefficient for power plant)} x distance traveled for a predetermined period of time. However, if the rental vehicle is a normal bicycle with no drive source other than the propulsion pedals, the calculation is performed with the subtraction element in parentheses in the above formula set to zero.

[0039] In step S205, the management server 2 transmits the amount of CO2 reduction for a predetermined period to the vehicle terminal 1. Meanwhile, in step S108, the vehicle terminal 1 receives the information on the amount of CO2 reduction transmitted from the management server 2. The received information is displayed in the display area 114 of the touch panel 11 of the vehicle terminal 1, as shown in FIG. 3. The user can know the specific amount of CO2 reduction that they have contributed to achieving the SDGs by driving.

[0040] When the user locks the vehicle using the smartphone when parking the vehicle for a break or other purpose, in step S109, the vehicle terminal 1 receives a signal transmitted from the smartphone (mobile terminal 3) via the communication unit 14. Alternatively, or in addition to this, the control unit 15 may receive a locking operation command by operating the touch panel 11 of the vehicle terminal 1 itself. In other words, the locking operation may be configured to be operable from either the vehicle terminal or the smartphone. Upon receiving the locking operation command, the locking / unlocking control unit 154 executes the locking operation.

[0041] In step S110, it is determined whether or not the vehicle return operation, which will be described later, has been performed. If the return operation has not been performed, this means that the user has not yet arrived at the final destination and is about to resume driving, so the process returns to step S103, the unlocking operation command signal is received again, and the vehicle resumes driving.

[0042] On the other hand, if the vehicle terminal 1 determines in step S110 that a vehicle return operation executed in cooperation with the mobile terminal 3 described below has been performed, then in step S111, the travel end information acquisition unit 153 acquires travel end information indicating that the user has ended their travel at the travel end location. Then, after calculating the accumulated mileage at the end by performing the same calculation as described in step S106 and the subsequent processing, the vehicle terminal 1 transmits information about the accumulated mileage at the end to the management server 2 as mileage-related information in step S112.

[0043] In step S206, the management server 2 receives the information on the cumulative mileage at the end transmitted from the vehicle terminal 1, and in step S207 calculates the rental mileage, which is the mileage of the rental vehicle from the start location to the end location of the movement. The rental mileage can be obtained by subtracting the cumulative mileage at the start from the cumulative mileage at the end.

[0044] Then, in step S208, the management server 2 calculates the total CO2 reduction amount for the rental period by calculating {(CO2 emission source coefficient for passenger cars, freight vehicles, etc.) - (amount of electricity consumed on a full charge of an electrically assisted bicycle, electric motorcycle, etc.) / (distance traveled on a full charge) x (CO2 emission source coefficient for power plant)} x rental distance. However, if the rental vehicle is a regular bicycle that has no drive source other than the pedals, the calculation is performed with the subtraction element in the parentheses in the above formula set to zero.

[0045] The calculated total CO2 reduction amount during the rental period is used for various management purposes and to provide services to users. Based on the information on the total CO2 reduction amount, the management server 2 performs processes such as disclosing the information requested by the user, i.e., obtaining information via pull, and awarding points according to the degree of contribution to the SDGs.

[0046] Although not shown in the flowchart of FIG. 5, after the total CO2 reduction amount for the rental period is calculated, processing similar to that described in steps S205 and S108 may be performed. In other words, after completing the distance in the vehicle, the user may be notified of the specific total CO2 reduction amount that the user has contributed to the SDGs. This is a push notification service when the distance is completed. Note that this notification may be configured to be sent to the user's smartphone rather than to the touch panel 11 of the vehicle terminal 1.

[0047] (Vehicle rental and return processing process) The vehicle rental process and vehicle return process executed by the vehicle terminal 1 and the mobile terminal 3 in cooperation will be described with reference to Fig. 6. Before that, the user will perform user registration and login work and reservation work using the mobile terminal 3 before the timing shown in Fig. 6, so these will be described first.

[0048] The registration process is performed by the user who accesses the management server 2 using a mobile terminal 3 and uses a telephone number, email address, various social network accounts, etc. The user's identity is verified using two-step authentication. Users are also encouraged to register their credit card information in advance, but registration can also be done before boarding or at the time of reservation. By registering, users can check their usage history and CO2 reduction amount on their personal page on the website provided by the management server 2.

[0049] To make a reservation, users check the real-time vehicle availability on a map displayed on the smartphone app, select the vehicle at the desired port (rental location), and confirm the advance reservation. After the reservation is complete, the smartphone app will display details of the vehicle and information about the rental location.

[0050] From here, the flow shown in Figure 6 begins. A two-dimensional barcode that identifies each vehicle is affixed to each vehicle using a sticker or other means. In step S301, the two-dimensional barcode affixed to an appropriate location on the vehicle is photographed using the camera of the mobile terminal 3, and the reserved vehicle code is obtained.

[0051] After step S301 is executed, the vehicle terminal 1 and the mobile terminal 3 start communication, and the display screen of the mobile terminal 3 prompts the user to pay the minimum usage fee using a specified method. If it is determined in step S302 that the minimum usage fee has been paid, then in the next step S303, movement start information is transmitted from the mobile terminal 3 to the vehicle terminal 1.

[0052] Thereafter, the vehicle terminal 1 acquires the movement start information as described above for step S101 using Fig. 5. The subsequent unlocking operations in steps S304 and S103 and the locking operations in steps S305 and S108 have also been described above, and therefore will not be described again.

[0053] After the user arrives at the return location, which is the final destination, the transmission operation of step S306 is performed, and it is then determined whether the "End ride" button on the smartphone app has been pressed (step S307). If the operation has been performed, the user is prompted to pay the difference in price according to the display screen of the smartphone app.

[0054] In step S308, it is determined whether the payment of the difference has been completed, and if it is determined that the payment has been completed, in the next step S309, movement end information is transmitted from the mobile terminal 3 to the vehicle terminal 1. Thereafter, the vehicle terminal 1 acquires the movement end information, as explained earlier with reference to FIG. 5 in relation to step S111.

[0055] The flowcharts shown in Figures 5 and 6 described above are merely examples. Even if appropriate modifications, such as omitting some processes or rearranging the order of processes, are made, they fall within the scope of the present invention as long as the intended purpose of the present invention is achieved. In the described embodiment, the transmission of the movement start information from the mobile terminal 3 is triggered by the completion of payment of the minimum usage fee. However, the timing of the transmission of the unlocking operation command, which is issued only after payment is completed, may be set to coincide with the transmission of the movement start information. Alternatively, the movement start information may be transmitted upon completion of payment, and the unlocking operation command signal may be transmitted automatically. As described in the claims, the "movement start information for starting movement from a movement start location" literally satisfies the requirement that "the user starts movement from a movement start location." It should not be interpreted with unnecessary limitations, such as the specific process that triggers it. Regarding this, as described in the modified example below, it is also possible to envision a case where the payment element is not involved at all. The same is true for "travel end information indicating that travel has ended at a travel end location," and it is sufficient if the requirement that "travel has ended at a travel end location" is satisfied.

[0056] As described above, in the first embodiment, the tachometer is used to calculate the mileage, and therefore the CO2 reduction amount, which has the effect of enabling the CO2 reduction amount to be estimated with high accuracy. Even if the timing for obtaining the mileage is configured to be the start and end of the rental period only, the error can be kept small if the mileage is calculated using the tachometer. A modified example of this will be described next.

[0057] (Modification of the first embodiment) In the first embodiment, the CO2 reduction amount is notified to the user after each predetermined period of driving. However, the CO2 reduction amount may be notified to the user only as the total CO2 reduction amount after returning the vehicle. This configuration reduces the amount of communication between the vehicle terminal 1 and the management server 2, thereby reducing battery consumption. While consumers cannot experience their contribution to the SDGs in real time, they can still enjoy the added appeal of a final treat. A major advantage of this modified example is that communication only at the start and end of the trip does not affect the accuracy of the CO2 reduction calculation, which is the objective of the present invention. In this modified example, the predetermined period can also be considered to be the entire period from the start to the end of the trip.

[0058] Furthermore, in the first embodiment, the management server 2 is configured to calculate the mileage for a specified period and the rental mileage by timely receiving the accumulated mileage as mileage-related information from the vehicle terminal 1, but the vehicle terminal 1 may be configured to calculate the mileage for a specified period and the rental mileage, and the vehicle terminal 1 may be configured to transmit the mileage for a specified period and the rental mileage as mileage-related information.

[0059] Furthermore, in the first embodiment, it was assumed that the mobile terminal 3 would be used as a means for renting and returning a vehicle. This is because it is assumed that the rental location is unmanned, with no manager or other person on hand. However, if staff are available at a hotel or other accommodation facility, it is possible to have the hotel staff activate the rental vehicle or lend the user a tool for activation, with the settlement fee charged to the hotel, thereby eliminating the need for a mobile terminal. If such an embodiment is adopted, it may even be possible for the generation of "movement start information" and "movement end information" not to be conditional on payment.

[0060] Second Embodiment Fig. 7 is a system configuration diagram of a CO2 reduction amount management system according to a second embodiment of the present invention. Fig. 8 is a functional block diagram showing an example of a vehicle terminal in the CO2 reduction amount management system according to the second embodiment of the present invention.

[0061] (Overall system configuration) As shown in FIG. 7 , a CO₂ reduction management system 100A according to the second embodiment is comprised of a vehicle terminal 1A and a management server 2, and the vehicle terminal 1A and the management server 2 are connected via a mobile phone communication network and / or an internet communication network. The vehicle terminal 1A is configured to communicate with a mobile terminal 3 carried by a user using a predetermined communication method such as Bluetooth (registered trademark) or infrared communication. The management server 2 is connected to an administrator terminal (not shown), such as a laptop PC used by an administrator, via the internet communication network. Although the mobile terminal 3 is a component of the second embodiment, as shown in FIG. 7 , the CO₂ reduction management system 100A is enclosed in parentheses, and therefore the mobile terminal 3 is not included in the components of the CO₂ reduction management system according to the present invention. In other words, the functions of the mobile terminal 3 may be performed by other means, as in the first embodiment.

[0062] The vehicle terminal 1A is an IoT module attached near the center of the handlebars of a rental vehicle without an engine, such as a bicycle, electrically assisted bicycle, or electric motorcycle. The control unit 15A of the vehicle terminal 1A controls the locking and unlocking of the vehicle body, and also acquires GPS positioning results from a GPS module provided in the vehicle terminal 1A itself or in another device. This is a difference from the first embodiment. The configurations of the management server 2 and the mobile terminal 3 are the same as those in the first embodiment, so a description thereof will be omitted.

[0063] (Vehicle terminal configuration) Fig. 8 is a block diagram showing a schematic configuration of the vehicle terminal 1A shown in Fig. 7, and is drawn from the perspective of a functional block diagram rather than a hardware configuration. As shown in Fig. 8, the vehicle terminal 1A includes a touch panel 11A, a mileage information acquisition unit 12A, a memory unit 13A, a communication unit 14A, and a control unit 15A.

[0064] The touch panel 11A is configured with a display provided with a touch sensor. The display may be a liquid crystal display, an organic EL display, or the like. The touch panel 11A displays various images under the control of the control unit 15A. Note that instead of a touch panel, a simple display and mechanical keys may be provided separately.

[0065] The mileage information acquisition unit 12A is mainly composed of a GPS information acquisition unit 12aA and an accumulated mileage storage unit 12bA. The GPS information acquisition unit 12aA acquires location information using a GPS module that is disposed in the vehicle terminal 1A attached near the center of the steering wheel of the vehicle, or that is attached to another location on the vehicle. The mileage information acquisition unit 12A acquires information about the mileage by calculating the difference between the location information measured at predetermined intervals. Note that the GPS module may be one that is provided in the mobile terminal 3.

[0066] In the first embodiment, the advantages of using a tachometer were explained, but that does not mean that the use of GPS is eliminated from the inventive concept of a CO2 reduction management system that estimates the CO2 reduction amount by a vehicle that does not have an internal combustion engine and is driven by the user, grasps the degree of contribution to the SDGs, and can be used for CO2 reduction management and services to users. As explained above, although a certain communication frequency is required and battery consumption increases, battery consumption is not a significant issue when applied to electric motorcycles that can be equipped with medium to large batteries, leaving aside bicycles and electrically assisted bicycles.

[0067] The memory unit 13A, communication unit 14A, and control unit 15A are not significantly different from those in the first embodiment, so detailed explanations will be omitted, but all of them perform processing at timings based on GPS distance measurement rather than a tachometer.

[0068] <Calculation processing operation of CO2 reduction amount in the second embodiment> The operational processing of the vehicle terminal and management server in the CO2 reduction management system according to the second embodiment of the present invention is not significantly different from the processing already explained using Fig. 5, and therefore will not be explained using a dedicated diagram. However, because the GPS positioning results are used, the predetermined intervals of, for example, every 30 minutes or every hour explained in Fig. 5 become shorter, for example, every 5 minutes. However, even if the intervals are short, the accumulated mileage at any time is transmitted and received every time the vehicle is driven for the predetermined period, as in the first embodiment.

[0069] The second embodiment described above does not require a tachometer, and can even use a GPS module on a mobile device, which has the advantage of reducing costs by using only electrical equipment and no electrical components. Furthermore, since the predetermined period is set to a short period, it also has the effect of enhancing the real-time nature of the feeling that one is contributing to the SDGs while driving.

[0070] (Modification of the second embodiment) As in the modified example of the first embodiment, the second embodiment also applies to the fact that the vehicle terminal 1 may be configured to transmit the mileage for a predetermined period or the rental mileage as the mileage-related information, instead of the cumulative mileage. Also, the same applies to the fact that the vehicle terminal 1 may be configured not to necessarily use a mobile terminal. On the other hand, informing the user of the amount of CO2 reduction only of the total amount of CO2 reduction after returning the vehicle is not prohibited, although the significance of such a modification is weak, since the second embodiment is mainly based on an electric motorcycle that can be equipped with a medium to large battery and calculates the mileage at short intervals.

[0071] Third Embodiment Fig. 9 is a system configuration diagram of a CO2 reduction amount management system according to a third embodiment of the present invention. Fig. 10 is a functional block diagram showing an example of a vehicle terminal in a CO2 reduction amount management system according to a second embodiment of the present invention.

[0072] (Overall system configuration) As shown in FIG. 9, the CO2 reduction management system 100B according to the third embodiment is composed of a mobile terminal 3B and a management server 2, and the mobile terminal 3B and the management server 2 are connected via a mobile phone communication network and / or an internet communication network. As can be seen at a glance, the difference from the first and second embodiments is that there is no vehicle terminal that contributes to the CO2 reduction management function. In other words, in the third embodiment, the functions that were performed by the vehicle terminal in the first and second embodiments are performed by the mobile terminal 3B. As a result, in the third embodiment, the mobile terminal, which has not previously been a component of the system according to the invention, becomes a component of the invention.

[0073] However, the third embodiment has in common with the second embodiment in that it acquires GPS positioning results. Furthermore, a vehicle terminal may also be present that performs the function of controlling the locking and unlocking of the vehicle body, as long as it is unrelated to the CO2 reduction management function. The configuration of the management server 2 is the same as that of the first embodiment, and therefore a description thereof will be omitted.

[0074] (Mobile device configuration) Fig. 10 is a block diagram showing the schematic configuration of the mobile terminal 3B shown in Fig. 9, and is drawn from the perspective of a functional block diagram rather than a hardware configuration. As shown in Fig. 10, the mobile terminal 3B is a smartphone or the like carried by a user that is used as a component of the CO2 reduction management system 100B, and includes a touch panel 31B, a mileage information acquisition unit 32B, a memory unit 33B, a communication unit 34B, and a control unit 35B.

[0075] The touch panel 31B is configured with a display provided with a touch sensor. The display is configured with a liquid crystal display, an organic EL display, etc. The touch panel 31B displays various images under the control of the control unit 35B.

[0076] The mileage information acquisition unit 32B is mainly composed of a GPS information acquisition unit 32aB and an accumulated mileage storage unit 32bB. The GPS information acquisition unit 32aB acquires location information using a GPS module built into a smartphone or the like. The mileage information acquisition unit 32B acquires information about the mileage by calculating the difference between location information measured at predetermined intervals. These functions can be realized by downloading and installing a dedicated app on the mobile terminal 3B. The app can be either a web app or a native app.

[0077] In the third embodiment, since the system uses a smartphone or the like that is owned by the user, battery consumption of the vehicle's battery is not an issue, and the introduction cost can be kept low.

[0078] The storage unit 33B, communication unit 34B, and control unit 35B execute processes at the timing of GPS distance measurement, etc., in the same manner as in the second embodiment.

[0079] <Processing Operation of Third Embodiment> The operation and processing of the CO2 reduction management system according to the third embodiment of the present invention is not significantly different from the processing already described. However, the processing performed by the three parties of the vehicle terminal, mobile terminal, and management server described in the first and second embodiments in cooperation with each other is now performed by just the two parties of the mobile terminal and management server. The calculation processing operation of the CO2 reduction amount can be understood by replacing the relationship between the vehicle terminal and management server described above with the relationship between the mobile terminal and management server using FIG. 5. The predetermined interval is a short period, such as five minutes, as in the second embodiment, because the GPS positioning results are used.

[0080] Regarding the vehicle rental and return processing steps, if there is a vehicle terminal that functions to control the locking and unlocking of the vehicle itself, the system can be configured to execute the same locking and unlocking process as explained above using Figure 6. If there is no vehicle terminal, a physical key will be used. Furthermore, the process executed after the minimum usage fee has been paid can be understood as a process in which the user's own mobile terminal acquires the movement start information upon completion of payment, rather than a process in which the user transmits the movement start information.

[0081] In the third embodiment described above, there is no need to provide a vehicle terminal as part of the CO2 reduction management system, and if a physical key is provided, there is no need to provide a vehicle terminal at all, which makes it possible to significantly reduce implementation costs.In addition, since a smartphone is used, CO2 reduction can be confirmed in real time.

[0082] <Additional Notes> Although the embodiments described so far are directed to rental vehicles, the technical concepts disclosed in this specification can also be applied to privately owned vehicles that are not rental vehicles. Furthermore, the technology can be realized as a technology that is completed on the vehicle side only, without the need for a management server. The technical concepts that can be conceived from these perspectives are presented below in the form of appendices.

[0083] (Appendix 1) A CO2 reduction management system that calculates the amount of CO2 reduction caused by traveling in a vehicle that does not have an internal combustion engine and is driven by the user, A vehicle terminal mounted on a vehicle and a management server that communicates with the vehicle terminal, the vehicle terminal includes a mileage information acquisition means for acquiring mileage information from a mileage calculation means for calculating a mileage of the vehicle for a predetermined period of time; the management server has a receiving means for receiving at least mileage-related information from the vehicle terminal, and a CO2 reduction amount calculating means for calculating a CO2 reduction amount based on the received mileage-related information, The CO2 reduction amount calculation means calculates the CO2 reduction amount for a travel distance assumed to be traveled by a vehicle equipped with an internal combustion engine, using the travel distance for a predetermined period of time. A CO2 reduction management system characterized by:

[0084] In the first to third embodiments, it is assumed that the combination of bicycle and user changes daily or less frequently, so it is necessary to consider the timing of use start and end information in order to identify the period when the combination changes. However, in the case of a privately owned vehicle with a fixed user, there is no need to consider the start and end timing, and it is possible to provide information on CO2 reductions over any period or over a long period. This system will be attractive to people who are trying to stop or reduce their driving and travel in more environmentally friendly vehicles.

[0085] (Appendix 2) A vehicle terminal that is mounted on a vehicle that does not have an internal combustion engine and is driven by the user, and that calculates the amount of CO2 reduction for a distance traveled by a vehicle that does not have an internal combustion engine, using the distance traveled by the vehicle, The system includes a mileage information acquisition means for acquiring mileage information from a mileage calculation means for calculating a mileage of a vehicle for a predetermined period of time, and a CO2 reduction amount calculation means for calculating a CO2 reduction amount based on the mileage information, The CO2 reduction amount calculation means calculates the CO2 reduction amount for a travel distance assumed to be traveled by a vehicle equipped with an internal combustion engine, using the travel distance for a predetermined period of time. A vehicle terminal characterized by:

[0086] (Appendix 3) A vehicle equipped with the vehicle terminal described in (Appendix 2).

[0087] The technologies described in (Appendix 2) and (Appendix 3) above are technologies that are completed within the vehicle terminal or vehicle itself, with the vehicle terminal itself calculating {(CO2 emissions source coefficient for passenger cars, freight vehicles, etc.) - (amount of electricity consumed on a full charge for electrically assisted bicycles, electric motorcycles, etc.) / (mileage on a full charge) x (CO2 emissions source coefficient for power plant)} x mileage over a specified period. Because this technology does not require a management server, it is difficult (though not impossible) to link it to services such as point awarding. However, for those who are not looking to earn points but simply want to contribute to environmental conservation, being able to track their own vehicle's contribution to the SDGs is an attractive option.

[0088] The CO2 reduction management system, vehicle terminal, vehicle, and program of each embodiment of the present invention have been described in detail above with reference to the drawings. However, the specific configurations are not limited to these embodiments, and the present invention also includes design changes that do not deviate from the gist of the present invention. For example, the vehicle terminal does not need to be equipped with a display; the present invention can be realized as long as it is equipped with a means for acquiring movement information, a means for acquiring mileage information, and a communication means. If it is not possible to grasp the amount of CO2 reduction in real time on the vehicle terminal, but it is sufficient to be able to grasp it on a smartphone at the end of the ride, a display is not necessarily required, and if necessary, real-time data can be ensured by using a smartphone. In this case, the IoT module can be attached to any location, such as the main frame of the bicycle, instead of the handlebars. Furthermore, the amount of CO2 reduction can be grasped and managed not only for each user or vehicle, but also for each rental or sharing business. [Explanation of symbols]

[0089] 100 CO2 reduction management system 1 Vehicle terminal 11 Touch Panel 12. Mileage information acquisition unit 12a Tachometer information acquisition unit 12b Accumulated mileage memory unit 13 Storage section 14 Communications Department 15 Control Unit 151 Display control unit 152 Movement start information acquisition unit (movement information acquisition means) 153 Movement end information acquisition unit (movement information acquisition means) 154 Locking / unlocking control unit 2 Management Server 21 Display section 22 Control section 23 Communications Department 24 CPU 25 ROM 26 RAM 27 CO2 reduction amount calculation department 3. Mobile devices RC Tachometer 100A CO2 Reduction Management System 1A Vehicle terminal 11A Touch Panel 12A Mileage information acquisition unit 12aA GPS information acquisition section 12bA Accumulated mileage memory unit 13A Storage section 14A Communications Department 15A Control unit 151A Display control unit 152A Movement start information acquisition unit (movement information acquisition means) 153A Movement end information acquisition unit (movement information acquisition means) 154A Locking / Unlocking Control Unit G GPS Module 100B CO2 Reduction Management System 3B mobile terminal 31B Touch Panel 32B Mileage information acquisition unit 32aB GPS information acquisition section 32bB Accumulated mileage memory unit 33B Storage section 34B Communications Department 35B Control section 351B Display control unit 352B Movement start information acquisition unit (movement information acquisition means) 353B Movement end information acquisition unit (movement information acquisition means) 354B Locking / unlocking control unit

Claims

1. CO2 emissions from traveling in rental vehicles that do not have an internal combustion engine and are driven by the user themselves ２ Calculate the amount of CO reduction ２ A reduction amount management system, A vehicle terminal is installed in each of a plurality of rental vehicles, and a management server communicates with the vehicle terminal, The vehicle terminal has a travel information acquisition means for acquiring travel start information indicating that the user starts travel from a travel start location and travel end information indicating that the user ends travel at a travel end location, a mileage information acquisition means for acquiring mileage information from a mileage calculation means for calculating the mileage of the rental vehicle for a predetermined period, and a mileage related information transmission means for transmitting mileage related information based on the mileage information to the management server, the mileage calculation means calculates the mileage of the rental vehicle for a predetermined period based on the output of a tachometer attached to a tire rotation axis of the rental vehicle, The management server includes a receiving unit that receives at least mileage-related information from the vehicle terminal, and a CO ２ Calculate the amount of CO reduction ２ A reduction amount calculation means is provided, The CO ２ The reduction amount calculation means calculates the total CO reduction amount for the travel distance when the rental vehicle is used to travel from the travel start location to the travel end location, assuming that the travel is made by a vehicle equipped with an internal combustion engine. ２ Calculate the savings CO characterized by ２ Reduction management system.

2. the vehicle terminal has a rental mileage calculation means for calculating a rental mileage from a movement start location to a movement end location based on a plurality of pieces of mileage information corresponding to a plurality of consecutive predetermined periods; The mileage-related information is the rental mileage.

2. The CO according to claim 1 , ２ Reduction management system.

3. the vehicle terminal has an accumulated mileage storage means for storing an accumulated mileage of the rental vehicle; The travel distance related information is the accumulated travel distance at the start and end of the movement stored in the accumulated travel distance storage means.

2. The CO according to claim 1 , ２ Reduction management system.

4. The predetermined period is a period from the start of movement to the end of movement, or any period between the start of movement and the end of movement, When the predetermined period is an arbitrary period, the CO ２ The reduction amount calculation means is a total CO ２ Instead of or in addition to the reduction amount, ２ Calculate the savings 2. The CO according to claim 1 , ２ Reduction management system.

5. The vehicle terminal has a display means and a calculated CO ２ The CO reduction amount is received from the management server. ２ A reduction amount receiving means is provided, The display means of the vehicle terminal ２ The amount of reduction is displayed 2. The CO according to claim 1 , ２ Reduction management system.

6. The CO2 equivalent for the distance traveled when the vehicle is equipped with an internal combustion engine and is installed in a rental vehicle that is driven by the user and does not have an internal combustion engine, and the distance traveled when the rental vehicle travels from the start location to the end location is used. ２ A vehicle terminal that communicates with a management server that calculates the amount of reduction, a travel information acquisition means for acquiring travel start information indicating when a user starts travel from a travel start location and travel end information indicating when the user ends travel at a travel end location; a travel distance information acquisition means for acquiring travel distance information from a travel distance calculation means for calculating the travel distance of the rental vehicle for a predetermined period; a travel distance related information transmission means for transmitting travel distance related information based on the travel distance information to the management server; a display means; and a display unit for displaying the calculated CO ２ The CO reduction amount is received from the management server. ２ a reduction amount receiving means; The travel distance calculation means calculates the travel distance of the rental vehicle for a predetermined period based on the output of a tachometer attached to the tire rotation axis of the rental vehicle. A vehicle terminal characterized by:

7. The vehicle terminal according to claim 6 is mounted on the vehicle. A vehicle characterized by:

8. The rental vehicle is not equipped with an internal combustion engine and is driven by the user himself / herself. The rental vehicle has a tachometer attached to the tire rotation axis. The CO2 equivalent for the travel distance when traveling from the start location to the end location in the rental vehicle is calculated by using the CO2 equivalent for the travel distance when traveling in a vehicle equipped with an internal combustion engine. ２ The computer on the vehicle terminal that communicates with the management server that calculates the reduction amount a movement start information acquisition step for acquiring movement start information by which the user starts movement from a movement start location; a predetermined period mileage calculation step of calculating a mileage of the rental vehicle for a predetermined period based on the output of the tachometer; a movement end information acquisition step for acquiring movement end information indicating that movement has ended at a movement end location; a travel distance calculation step of calculating a travel distance from a travel start location to a travel end location; transmitting the calculated travel distance to a management server; A program characterized by executing the following.

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