Unmanned sales system

Abstract

To lower the hurdle of setting up an unmanned sales system such as a vending machine that sells beverages from the viewpoint of securing a power source. [Solution] An unmanned vending system equipped with solar panels, a storage battery, an unmanned vending machine, and an inverter, which is capable of executing two or more selected from the following first to seventh modes, and is switchable to any one of the modes. First mode: Power generated by the solar panels is supplied to the unmanned vending machine. Second mode: Power generated by the solar panels and power charged in the storage battery are supplied to the unmanned vending machine. Third mode: Power charged in the storage battery is supplied to the unmanned vending machine. Fourth mode: Power generated by the solar panels is supplied to the unmanned vending machine and the storage battery. Fifth mode: Commercial power is supplied to the unmanned vending machine. Sixth mode: Commercial power is supplied to the unmanned vending machine, and commercial power is supplied to the storage battery. Seventh mode: Commercial power is supplied to the storage battery.

Description

[Technical field]

[0001] The present invention relates to an unmanned vending system that sells products without any staff, and more particularly to a technology for operating an unmanned vending machine using electricity generated by solar power generation. [Background technology]

[0002] Conventionally, vending machines that can be powered by an AC power source (commercial power source) and by electricity generated by a solar panel are known. For example, in Patent Document 1, even when power is supplied from the AC power source under normal circumstances, if the battery is sufficiently charged, the vending machine is driven by power supplied only from the battery, with the aim of reducing the amount of electricity used by the AC power source. Also, when there is no power supply from the AC power source due to a power outage or the like, the vending machine can be driven with low power consumption and execute the minimum functions by supplying power from the battery even if the battery is not sufficiently charged, making it possible to respond to disasters. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-146159 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration disclosed in Patent Document 1, a controller switches between AC power (commercial power) and battery power, but because it is based on the assumption that AC power will be used, it was not intended that an unmanned vending system be set up in locations where AC power cannot be secured.

[0005] In this respect, it could be said that the hurdle of setting up an unmanned vending system is low in terms of securing a power source when the use of existing power infrastructure in towns or buildings is assumed. On the other hand, in situations where the power infrastructure is not necessarily complete, such as event venues for expositions, exhibitions, and concerts, or construction sites, securing a power source must be considered first, and the fact that it is not easy to secure a power source can be a hurdle to setting up. For this reason, there is a demand for a system that can be used in situations where AC power (commercial power) cannot be secured.

[0006] On the other hand, in recent years, the power generation efficiency of solar panels and the performance of storage batteries have improved remarkably, and the concept of so-called "off-grid" that does not rely on AC power sources is becoming more widespread and more feasible. In addition, efforts to conserve electricity from the perspective of protecting the global environment are an ongoing issue, and companies are being asked to contribute to society.

[0007] Therefore, even in situations where AC power (commercial power) can be secured, it can be said that it is still possible to promote energy conservation efforts by making effective use of solar panels and storage batteries.

[0008] Furthermore, in recent years, rapid aging, population decline, and depopulation have led to the problem of "shopping refugees" due to a lack of nearby grocery stores or transportation, which has become a social issue. Unmanned sales systems have the potential to become a social infrastructure that helps solve this problem, and demand for them is expected to continue to grow.

[0009] In consideration of the above, the present invention proposes a technology to solve the above problems by lowering the hurdles of setup from the perspective of securing a power source in unmanned sales systems such as vending machines that sell beverages.

[0010] As another theme, this study proposes new technologies to promote energy conservation efforts by effectively utilizing solar panels and storage batteries, even in situations where AC power (commercial power) can be secured.

[0011] Another problem is that in the operation of an unmanned vending system that uses power generation from solar panels, specific consideration is required depending on the installation location. For example, in different prefectures in Japan, the amount of solar radiation differs, so it is necessary to consider the effect on the amount of power generated by solar panels installed outdoors. However, no specific guidelines are known for constructing an unmanned vending system depending on the amount of solar radiation. Therefore, the present invention proposes a new technology that also takes into account the actual operation at the installation location. [Means for solving the problem]

[0012] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.

[0013] According to one aspect of the present invention, an unmanned vending system is provided that is equipped with a solar panel, a storage battery, and an unmanned vending machine.

[0014] According to one aspect of the present invention, there is provided an unmanned vending system including a solar panel, a storage battery, and an unmanned vending machine, and further including an inverter.

[0015] According to one aspect of the present invention, there is provided an unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, in which the voltage output from the solar panel to the inverter is 100V or more.

[0016] According to one aspect of the present invention, there is provided an unmanned vending system equipped with solar panels, a storage battery, an unmanned vending machine, and an inverter, wherein the sum of the rated maximum output of the solar panels is 100 (W) or more.

[0017] According to one aspect of the present invention, there is provided an unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, and the unmanned vending system is installed at a location where the annual average solar radiation at the annual optimum tilt angle is 3 to 5 (kW / m 2 / day).

[0018] According to one aspect of the present invention, there is provided an unmanned vending system including solar panels, a storage battery, an unmanned vending machine, and an inverter, in which a plurality of solar panels are connected in series.

[0019] According to one aspect of the present invention, there is provided an unmanned vending system equipped with solar panels, a storage battery, an unmanned vending machine, and an inverter, the unmanned vending system having a plurality of solar panel sets consisting of a plurality of solar panels connected in series, the plurality of solar panel sets being connected in parallel.

[0020] According to one aspect of the present invention, there is provided an unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, and the storage battery has a storage capacity of 50 (Wh) or more when fully charged.

[0021] According to one aspect of the present invention, there is provided an unmanned vending system including a solar panel, a storage battery, an unmanned vending machine, and an inverter, the rated power consumption of the inverter being 200 (W) or less.

[0022] According to one aspect of the present invention, there is provided an unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, in which the rated power consumption of the unmanned vending machine is 300 (W) or less.

[0023] According to one embodiment of the present invention, the unmanned vending system is equipped with solar panels, a storage battery, an unmanned vending machine, and an inverter, the unmanned vending system having solar panels with a sum of their nominal maximum outputs of 100 (W) or more and an unmanned vending machine with a rated power consumption of 700 (W) or less.

[0024] According to one aspect of the present invention, the unmanned vending system is provided with a solar panel, a storage battery, and an unmanned vending machine, and is provided with a display mechanism for displaying the power supply status from the solar panel to the unmanned vending machine, the power supply status from the solar panel to the storage battery, and the power supply status from the storage battery to the unmanned vending machine.

[0025] According to one embodiment of the present invention, there is provided an unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, which is capable of executing two or more modes selected from the following first to seventh modes, and is capable of switching to any of the modes. First mode: Power the unmanned vending machine with electricity generated by the solar panels Second mode: Power generated by the solar panels and charged in the storage battery are used to power the unmanned vending machine. Third mode: Supplying electricity charged in the battery to an unmanned vending machine Mode 4: Power generated by the solar panels to power the unmanned vending machine and the storage battery Fifth mode: Supplying commercial power to the unmanned vending machine 6th mode: Supply commercial power to the unmanned vending machine and supply commercial power to the storage battery Mode 7: Supplying commercial power to the battery

[0026] According to one embodiment of the present invention, the seventh mode is performed during a specific time period that is specified in advance.

[0027] According to one embodiment of the present invention, the unmanned vending system is equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, and is capable of executing two or more modes selected from the following first to fourth modes, as well as a solar charging mode, and is capable of switching between any of the modes. First mode: Power the unmanned vending machine with electricity generated by the solar panels Second mode: Power generated by the solar panels and charged in the storage battery are used to power the unmanned vending machine. Third mode: Supplying electricity charged in the battery to an unmanned vending machine Mode 4: Power generated by the solar panels to power the unmanned vending machine and the storage battery Solar charging mode: Charge the battery with electricity generated by the solar panel.

[0028] According to one aspect of the present invention, an unmanned vending system is provided that is equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, and is capable of executing two or more modes selected from the following first to fourth modes, and a solar charging mode, and is capable of switching to any one of these modes. In the solar charging mode, when a predetermined percentage of charging of the storage battery is completed, the unmanned vending system transitions to any one of the first to fourth modes. First mode: Power the unmanned vending machine with electricity generated by the solar panels Second mode: Power generated by the solar panels and charged in the storage battery are used to power the unmanned vending machine. Third mode: Supplying electricity charged in the battery to an unmanned vending machine Mode 4: Power generated by the solar panels to power the unmanned vending machine and the storage battery Solar charging mode: Charge the battery with electricity generated by the solar panel.

[0029] According to one aspect of the present invention, there is provided an unmanned vending system including a solar panel, a storage battery, an unmanned vending machine, and an inverter, The rated power consumption of the unmanned vending machine is A (W), The rated power consumption of the inverter is B(W), The amount of electricity stored in the battery when it is fully charged is C (Wh), (A+B)(W)×Predetermined time <C(Wh)であり、 To provide an unmanned vending machine as an unmanned vending system capable of operating off-grid for a specified period of time.

[0030] According to one aspect of the present invention, there is provided an unmanned vending system including a solar panel, a storage battery, an unmanned vending machine, and an inverter, The rated power consumption of the unmanned vending machine is A (W), The rated power consumption of the inverter is B(W), The amount of electricity stored in the battery when it is fully charged is C (Wh), 1.5×[(A+B)(W)×predetermined time]≦C(Wh)≦4×[(A+B)(W)×predetermined time], An unmanned vending system that can operate an unmanned vending machine off-grid for a predetermined time.

[0031] Moreover, according to one aspect of the present invention, an unmanned vending system comprising a solar panel, a storage battery, an unmanned vending machine, and an inverter, the rated power consumption of the unmanned vending machine is A (W), the rated power consumption of the inverter is B (W), the estimated daily power generation of the solar panel is D (Wh), (A + B) (W) × predetermined time < D (Wh), An unmanned vending system that can operate an unmanned vending machine off-grid for a predetermined time.

[0032] Moreover, according to one aspect of the present invention, an unmanned vending system comprising a solar panel, a storage battery, an unmanned vending machine, and an inverter, the rated power consumption of the unmanned vending machine is A (W), the rated power consumption of the inverter is B (W), the stored power at full charge of the storage battery is C (Wh), the estimated daily power generation of the solar panel is D (Wh / day), (A + B) (W) × predetermined time < C (Wh), (A + B) (W) × predetermined time < D (Wh / day), An unmanned vending system that can operate an unmanned vending machine off-grid for a predetermined time.

[0033] Moreover, according to one aspect of the present invention, an unmanned vending system comprising a solar panel, a storage battery, an unmanned vending machine, and an inverter, the rated power consumption of the unmanned vending machine is A (W), the rated power consumption of the inverter is B (W), the stored power at full charge of the storage battery is C (Wh) the estimated daily power generation of the solar panel is D (Wh / day), 1.5 × [(A + B) (W) × predetermined time] ≤ C (Wh) ≤ 4 × [(A + B) (W) × predetermined time], (A+B)(W)×Predetermined time <D(Wh)であり、 To provide an unmanned vending machine as an unmanned vending system capable of operating off-grid for a specified period of time.

[0034] According to another aspect of the present invention, the storage battery is introduced into the unmanned vending system in a fully charged state.

[0035] According to one embodiment of the present invention, the estimated power generation amount D (Wh / day) per day is a value calculated using the following formula: D (Wh / day) = Sum of nominal maximum output of solar panels (W) × Estimated solar radiation (kWh / m 2 ) × loss factor

[0036] According to one embodiment of the present invention, the loss factor is 0.85.

[0037] According to one aspect of the present invention, the estimated solar radiation (kWh / m 2 ) is the annual average value of monthly solar radiation at the annual optimum tilt angle at the location where the unmanned vending system will be installed.

[0038] According to one aspect of the present invention, the estimated solar radiation (kWh / m 2 ) is the monthly solar radiation value at the annual optimum tilt angle corresponding to the operating month at the location where the unmanned vending system is installed.

[0039] According to one aspect of the present invention, the estimated solar radiation (kWh / m 2 ) is the minimum value of monthly solar radiation at the annual optimal tilt angle at the location where the unmanned vending system will be installed.

[0040] According to one aspect of the present invention, the estimated solar radiation (kWh / m 2 ) is the amount of solar radiation (annual average) at the annual optimum tilt angle described in "NEDO Renewable Energy Technology White Paper, 2nd Edition, Chapter 2, Solar Power Generation, P25, Figure 2-26" at the location where the unmanned vending system will be installed [kWh / m2 ] is the value converted into

[0041] According to another aspect of the present invention, a controller provided in the inverter and a controller provided in the storage battery are communicatively connected to each other, The storage battery is controlled so as to be discharged at a predetermined voltage.

[0042] According to one aspect of the present invention, the module conversion rate of the solar panel is 15% or more.

[0043] According to one aspect of the present invention, the storage battery is a sodium ion battery.

[0044] According to one aspect of the present invention, an unmanned vending system is provided that includes a solar panel, a storage battery, an unmanned vending machine, and a carbon dioxide absorbent.

[0045] According to one aspect of the present invention, the unmanned vending machine is equipped with a carbon dioxide absorbing material. Effect of the Invention

[0046] The present invention has the following advantages: That is, according to one aspect of the present invention, even if AC power (commercial power) can be secured, it is possible to promote efforts to save electricity by effectively utilizing solar panels and storage batteries. Also, by making it possible to cover power from AC power (commercial power) as necessary, it is possible to operate the vending machine even if power from solar panels or rechargeable batteries cannot be secured.

[0047] Furthermore, according to one aspect of the present invention, the vending machine can be operated off-grid, without using an AC power source (commercial power source). [Brief description of the drawings]

[0048] [Figure 1] FIG. 1 is a diagram showing an example of the configuration of an unmanned sales system. [Diagram 2] FIG. 4 is a diagram for explaining a first mode in hybrid power supply operation. [Diagram 3] FIG. 4 is a diagram for explaining a second mode in hybrid power supply operation. [Figure 4] FIG. 13 is a diagram for explaining a third mode in hybrid power supply operation. [Diagram 5] FIG. 13 is a diagram for explaining a fourth mode in hybrid power supply operation. [Figure 6] FIG. 13 is a diagram for explaining a fifth mode in hybrid power supply operation. [Figure 7] FIG. 13 is a diagram for explaining a sixth mode in hybrid power supply operation. [Figure 8] FIG. 13 is a diagram for explaining a seventh mode in hybrid power supply operation. [Figure 9] FIG. 4 is a diagram for explaining a solar charging mode in hybrid power supply operation. [Figure 10] FIG. 1 is a diagram illustrating the first mode of off-grid operation. [Figure 11] FIG. 1 is a diagram explaining the second mode of off-grid operation. [Figure 12] A diagram explaining the third mode for off-grid operation. [Figure 13] A diagram explaining the fourth mode for off-grid operation. [Figure 14] A diagram explaining the solar charging mode for off-grid operation. [Figure 15] A diagram showing the "NEDO Solar Radiation Database MONSOLA-20." [Figure 16] An enlarged simplified view of a portion of Figure 15. [Figure 17] A diagram showing "NEDO Renewable Energy Technology White Paper - Issues and Prescriptions to Overcome in Expanding the Use of Renewable Energy - 2nd Edition - Chapter 2 - Photovoltaic Power Generation - Edited by New Energy and Industrial Technology Development Organization, Independent Administrative Institution, Publication Date: February 2014 - P25 - Figure 2-26." [Figure 18] FIG. 11 is a diagram showing an example of content displayed on a display function. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0049] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an example of an unmanned vending system 1 according to an embodiment, which includes a solar panel 10, a storage battery 20, and a vending machine 30 serving as an unmanned vending machine.

[0050] The vending machine 30 is configured with a controller 35 that performs various controls for unmanned sales of products stored inside in response to the operation of selection buttons and payment, and a power unit 36 ​​that includes a compressor for compressing a refrigerant. The rated power consumption of the vending machine 30 is, for example, 300 (W) or less, 250 (W) or less, and more specifically, for example, a vending machine of 223 (W) can be used.

[0051] The vending machine 30 is provided with a plurality of column devices for storing products such as PET bottles filled with beverages, and each column device performs cooling, heating, and heating to keep the products at a predetermined temperature. The controller 35 appropriately operates the power unit 36 ​​and the like to manage the temperature of the products. The controller 35 is configured to operate and stop according to a predetermined schedule. For example, in an event such as an exhibition, the power supply can be turned off and stopped during the night from 22:00 to 6:00, and the schedule can be executed such that the power supply is turned off at 6:00 and the machine operates until 22:00. The controller 35 is configured to automatically start the vending machine when the solar panel 10 starts generating power and the power supply is resumed after the vending machine is stopped without power supply from the solar panel 10 or the storage battery 20.

[0052] A box 2 of approximately the same size as the vending machine 30 is provided on the side of the vending machine 30, and an inverter 40 and a storage battery 20 are installed inside the box 2. A solar panel 10 is placed on the top surfaces of the vending machine 30 and the box 2. The box 2 may be installed in a location separate from the vending machine 30. The solar panel 10 may be installed in a location other than the top surfaces of the vending machine 30 and the box 2, and may be installed in a location separate from the vending machine 30 and the box 2.

[0053] The size of the box 2 can be configured to be, for example, approximately the same as the size of the housing of the vending machine 30. The box 2 is configured, for example, as a metal housing for outdoor installation with an openable door. The size of the box 2 may be changed according to the size of the inverter 40 and the storage battery 20, and an additional storage battery may be provided outside the box 2.

[0054] The inverter 40 includes a power supply circuit that converts between DC and AC, and a controller 45, and is configured so that the controller 50 can execute various controls, such as those described below. 1: The inverter 40 is connected to the storage battery 20 and enables the power charged in the storage battery 20 to be supplied to the vending machine 30. 2: The inverter 40 is connected to the solar panel 10 and enables the electricity generated by the solar panel 10 to be supplied to the vending machine 30 and the storage battery 20. 3: The inverter 40 is connected to a commercial power source 5 and enables AC power from the commercial power source 5 to be supplied to the vending machine 30 and the storage battery 20.

[0055] The rated power consumption of the inverter 40 may be, for example, 200 (W) or less, and is preferably 150 (W) or less, 100 (W) or less, 90 (W) or less, 80 (W) or less, 75 (W) or less, or 60 (W) or less. As one embodiment, an inverter of 55 (W) or less may be used.

[0056] The controller 50 may be provided as a dedicated device separate from the inverter 40, for example.

[0057] The solar panel 10 is connected to an inverter 40, and the electricity generated by the solar panel 10 is supplied to the vending machine 30 via the inverter 40, so that the vending machine 30 is operated by the power supplied from the solar panel 10.

[0058] The solar panel 10 is connected to the storage battery 20 via an inverter 40, and the power generated by the solar panel 10 is charged in the storage battery 20. The power charged in the storage battery 20 is supplied to the vending machine 30 via the inverter 40, and the vending machine 30 is operated by the power supplied from the storage battery 20.

[0059] The voltage output from the solar panel 10 to the inverter 40 is, for example, 70(V) or more, and in one embodiment, it is 120(V), and in another embodiment, it is 180(V).

[0060] For example, when solar panels are connected in series, if the nominal maximum output operating voltage of one solar panel is 30 (V), four solar panels can be connected in series to supply a high voltage of 120 (V), and six solar panels can be connected in series to supply a high voltage of 180 (V). Thus, a high voltage of 70 (V) or more, preferably 100 V or more, more preferably 110 V or more, and even more preferably 120 V or more is preferable. When such a high voltage can be supplied, it is more preferable because it is possible to adopt an MPPT charging method for the storage battery and it is possible to charge quickly, and it is also possible to suppress the current and reduce the heat generation of the cable.

[0061] The sum of the nominal maximum outputs of the solar panels 10 is, for example, 100 (W) or more, and as one embodiment, four solar panels with a nominal maximum output of 275 (W) are connected in series to provide 1150 (W). As one embodiment, six solar panels with a nominal maximum output of 275 (W) are connected in series to provide 1650 (W). Note that the solar panel 10 may be configured with a plurality of solar panels connected in series, or may have a plurality of solar panel sets made up of a plurality of solar panels connected in series, and the plurality of solar panel sets may be connected in parallel.

[0062] As one embodiment, a configuration can be provided that includes solar panels having a sum of the nominal maximum outputs of 100 (W) or more and a vending machine having a rated power consumption of 700 (W) or less.

[0063] The sum of the nominal maximum output of the solar panels is 100 (W) or more, preferably 300 (W) or more, 500 (W) or more, 700 (W) or more, or 1000 (W) or more. In terms of the area of ​​the solar panels, a preferable upper limit may be 4000 (W) or less, 3500 (W) or less, 3000 (W) or less, 2500 (W) or less, or 2000 (W) or less.

[0064] The rated power consumption of the vending machine should preferably be 660(W) or less, 600(W) or less, 550(W) or less, 500(W) or less, 450(W) or less, 400(W) or less, 350(W) or less, 300(W) or less, 250(W) or less.

[0065] As one embodiment, the module conversion rate of the solar panel is 15% or more. This is to effectively utilize sunlight while taking into consideration the installation area of ​​the solar panel. The module conversion rate of the solar panel is more preferably 17% or more, and even more preferably 20% or more.

[0066] As one embodiment, the solar panel 10 may be of a size that fits within the floor space in which the vending machine 30 and the box 2 are installed. The solar panel 10 may be installed, for example, on a stand provided on the top of the vending machine 30 and the box 2 so that the angle can be adjusted. The dimensions of one solar panel are, for example, 1735 mm wide x 765 mm long.

[0067] The storage battery 20 includes a controller 25, and charging and output are controlled by the controller 25. The storage battery 20 may be, for example, a sodium ion battery, but is not limited to this. The sodium ion battery may have a capacity of 8646.75 (Wh) to 9607.5 (Wh) when fully charged. Examples of the sodium ion battery specifications include a nominal voltage of 36 (V) to 58.5 (V) and a storage battery capacity of 175.5 (Ah / 10HR) to 189 (Ah / 10HR).

[0068] A controller 45 provided in the inverter 40 and a controller 25 provided in the storage battery 20 are connected for communication and controlled so that the storage battery 20 discharges at a predetermined voltage. For example, the controllers 45, 25 control so that the voltage of the storage battery 20 is discharged within a range of 36 (V) to 58.5 (V). When the discharge progresses and the voltage falls below 36 V, the discharge is stopped.

[0069] The inverter 40 operates by power supplied from the storage battery. The inverter 40 stops when the power of the storage battery decreases and the power supply is cut off. After the remaining power of the storage battery 20 runs out, when a predetermined percentage (for example, 15%) of the storage battery is charged by power generation from the solar panel, the storage battery resumes discharging, the inverter 40 starts up, and power supply to the vending machine begins.

[0070] The unmanned vending system can execute two or more modes selected from the modes shown below by controlling the inverter 40 by the controller 45. The inverter may be composed of one or more device groups in order to obtain the effects of the present invention. For example, it may be a so-called hybrid conditioner alone, or it may be a combination of a DC to AC conversion device, a switching device for various modes, and a control device for charging and discharging the storage battery. In a system that utilizes power generation by solar panels, the inverter in this specification is also called a power conditioner (commonly known as power conditioner).

[0071] <Hybrid power supply operation model> 2 to 9 are configured to secure power supply from solar panels and commercial power sources, and are examples of situations where so-called "hybrid power supply" can be implemented. "Hybrid power supply" is a model that minimizes the use of commercial power sources by operating the unmanned vending system using power generated by solar panels (renewable energy) while also supplying power from commercial power sources as necessary. In other words, it is a model that uses commercial power sources to supplement the power that is insufficient when generated by solar panels (renewable energy).

[0072] Figure 2: First mode: This mode supplies electricity generated by solar panels to the unmanned vending machine. In the example of the first mode shown in FIG. 2, power generated by the solar panel 10 is supplied to the vending machine 30 to operate it. This first mode is executed, for example, during the day when there is sufficient solar radiation and the vending machine 30 can be operated using only the power generated by the solar panel 10.

[0073] Figure 3: Second mode: This mode supplies electricity generated by the solar panels and charged in the storage battery to the unmanned vending machine. The example of the second mode shown in FIG. 3 illustrates a state in which the vending machine 30 is operated during the day by being supplied with power generated by the solar panel 10 and power discharged from the storage battery 20. This second mode is executed, for example, between sunrise and sunset when, due to cloudy weather, the generated electricity alone is not enough to cover the power consumed, and the vending machine 30 is operated in conjunction with power supplied from the storage battery 20.

[0074] Figure 4: Third mode: This mode supplies electricity charged in the storage battery to the unmanned vending machine. The example of the third mode shown in FIG. 4 illustrates a state in which no power is generated by the solar panel 10 at night or during the day when there is no sunlight, and the vending machine 30 operates by supplying power discharged from the storage battery 20. The third mode is executed, for example, at night or during the day when there is no sunlight, when the solar panel 10 does not generate power and the vending machine 30 is operated only by power supplied from the storage battery 20.

[0075] Figure 5: Fourth mode: This mode supplies electricity generated by the solar panels to the unmanned vending machine and the storage battery. In the example of the fourth mode shown in Figure 5, there is sufficient solar radiation during the day, and electricity generated by the solar panel 10 is supplied to the vending machine 30 to operate it, while surplus electricity that is not consumed is supplied to the storage battery 20 to charge it. This fourth mode is executed, for example, in a situation where there is sufficient sunlight during the day, the vending machine 30 can be operated using only the power generated by the solar panel 10, and the storage battery 20 is not fully charged but can be charged.

[0076] Figure 6: Fifth mode: This mode supplies commercial power to the unmanned vending machine. In the example of the fifth mode shown in FIG. 6, power from commercial power source 5 is supplied to vending machine 30 to operate. The fifth mode is executed, for example, at night when there is no power generation by the solar panel 10 and the charge level of the storage battery 20 is low and the storage battery 20 cannot be discharged.

[0077] Figure 7: 6th mode: This mode supplies commercial power to the unmanned vending machine and also supplies commercial power to the storage battery. The example of the sixth mode shown in FIG. 7 illustrates a state in which power from commercial power source 5 is supplied to vending machine 30 to operate, and power from commercial power source 5 is also supplied to storage battery 20 to charge it. This sixth mode is executed in a situation where, for example, at night, there is no power generation by the solar panel 10 and the vending machine 30 needs to be operated using power supplied from the commercial power source 5, and also in a situation where the storage battery 20 is not fully charged but can be charged.

[0078] Figure 8: Seventh mode: This mode supplies commercial power to the storage battery. In the seventh mode shown in FIG. 8, an example is shown of a state in which power is supplied from the commercial power source 5 to the storage battery 20 for charging. The seventh mode is executed, for example, during late night hours (specific time periods) when the electricity rate from the commercial power source 5 is low, and in a situation where the storage battery 20 is not fully charged but can be charged.

[0079] Figure 9: Solar charging mode: This mode charges the storage battery with electricity generated by the solar panel. This solar charging mode is executed, for example, to charge the storage battery 20 to a predetermined charging rate so that it can be discharged, and to start the inverter 40 without using any power from the commercial power source 5 to start supplying power to the vending machine 30. It is also executed, for example, when the operation of the vending machine 30 is stopped according to a schedule, and charging is performed in preparation for later resumption of operation.

[0080] By operating with hybrid power supply using each of the modes explained above, even if AC power (commercial power) can be secured, solar panels and storage batteries can be effectively used to promote energy conservation efforts. In addition, by making it possible to cover power from AC power (commercial power) as needed, vending machines can be operated even when power from solar panels or rechargeable batteries cannot be secured.

[0081] Specifically, for example, during the day, the vending machine operates in the first mode without using commercial power, and furthermore, when the power generation by the solar panel is sufficient, the storage battery is charged in the fourth mode. Then, when the sun goes down and the amount of power generated by the solar panel decreases, the power to the vending machine is supplemented by supplying power from the storage battery in the second mode. Furthermore, when no power is generated at all at night, the vending machine operates only with the storage battery by supplying power in the third mode. By appropriately selecting and switching between the first to fourth modes, so-called "off-grid" operation that does not use commercial power is possible.

[0082] On the other hand, at night or other times when there is no power generation from the solar panels and the charge level of the storage battery is low and it cannot be discharged, the storage battery can be charged using power supplied from a commercial power source in the fifth mode, making it possible to run the third mode after charging.

[0083] Alternatively, in a situation where there is no power generation from the solar panels, such as at night, the sixth mode supplies power to the vending machine from the commercial power source, and the storage battery is charged by supplying power from the commercial power source to the storage battery. This makes it possible to make the third mode executable after charging.

[0084] Alternatively, for example, when the vending machine is stopped at night, power is supplied from the commercial power source to the storage battery during a pre-specified time period (a late-night period when electricity rates from commercial power sources are low (for example, 0:00 to 6:00)) to charge the storage battery (seventh mode). This allows the third mode to be executed when the vending machine is started up, even if there is no power generation from the solar panels. Also, charging during the late-night period can contribute to the so-called off-peak use of electricity.

[0085] <Example 1 of operation method using hybrid power supply> As one embodiment, when introducing an unmanned vending system, the storage battery is fully charged and installed in Box 2 (Fig. 1). The controller is set to execute a schedule in which the vending time is from 6:00 to 22:00.

[0086] In this case, since the storage battery is installed in a fully charged state, the second or third mode can be executed immediately after installation, or the first or fourth mode can be executed immediately if the solar panel generates sufficient power.

[0087] If there is no power supply from the solar panels during sales hours and the battery stops discharging, the fifth or sixth mode can be executed. This allows the vending machine to continue selling products unmanned during sales hours without having to stop operating.

[0088] When the sales time passes at 22:00 and it becomes non-sales time (22:00-6:00), the controller turns off the power to the vending machine and stops the machine. On the other hand, if the storage battery is not fully charged, the inverter executes the seventh mode at the time when it becomes late at night (specific time period) when the electricity rate from commercial power source 5 is cheap, and continues charging the storage battery until it is fully charged.

[0089] In this way, during sales hours, power is mainly supplied from the solar panels and storage batteries, and power is supplied from commercial power sources as necessary, thereby minimizing the use of proprietary power sources. Also, during non-sales hours, by charging the battery as necessary during late-night hours, it becomes possible to supply power from the storage battery without using commercial power sources when operations resume during sales hours. Note that the period between 6:00 and 9:00 may be set as a standby period during which no sales are conducted, and the products inside may be cooled to a specified temperature in preparation for sales after 9:00.

[0090] <Off-grid operation model> 10 to 14 are configured to secure power supply only from solar panels, and are examples of so-called completely "off-grid" implementation. For example, these are models that are installed in environments where commercial power cannot be secured, or that are operated without connecting to commercial power even if commercial power is secured.

[0091] Figure 10: First mode: This mode supplies electricity generated by the solar panels to the unmanned vending machine. In the example of the first mode shown in FIG. 10, power generated by the solar panel 10 is supplied to the vending machine 30 to operate it. The first mode is executed, for example, during the day when there is sufficient solar radiation and the vending machine 30 can be operated using only the power generated by the solar panel 10.

[0092] Figure 11: Second mode: This mode supplies electricity generated by the solar panels and charged in the storage battery to the unmanned vending machine. The example of the second mode shown in FIG. 11 illustrates a state in which the vending machine 30 is operated during the day by being supplied with power generated by the solar panel 10 and power discharged from the storage battery 20. This second mode is executed, for example, between sunrise and sunset when, due to cloudy weather, the generated electricity alone is not enough to cover the power consumed, and the vending machine 30 is operated in conjunction with power supplied from the storage battery 20.

[0093] Figure 12: Third mode: This mode supplies electricity charged in the storage battery to the unmanned vending machine. The example of the third mode shown in FIG. 12 illustrates a state in which no power is generated by the solar panel 10 at night or during the day when there is no sunlight, and the vending machine 30 operates by supplying electricity discharged from the storage battery 20. The third mode is executed, for example, at night or during the day when there is no sunlight, when the solar panel 10 does not generate power and the vending machine 30 is operated only by power supplied from the storage battery 20.

[0094] Figure 13: Fourth mode: This mode supplies electricity generated by the solar panels to the unmanned vending machine and the storage battery. In the example of the fourth mode shown in Figure 13, there is sufficient solar radiation during the day, and electricity generated by the solar panel 10 is supplied to the vending machine 30 to operate it, while surplus electricity that is not consumed is supplied to the storage battery 20 to charge it. This fourth mode is executed, for example, in a situation where there is sufficient sunlight during the day, the vending machine 30 can be operated using only the power generated by the solar panel 10, and the storage battery 20 is not fully charged but can be charged.

[0095] Figure 14: Solar charging mode: This mode charges the storage battery with electricity generated by the solar panel. This solar charging mode is executed, for example, to charge the storage battery 20 to a predetermined charging rate, thereby starting up the inverter 40 and starting the supply of power to the vending machine 30.

[0096] By using the off-grid operation modes described above, the vending machine can be operated without using an AC power source (commercial power source).

[0097] Specifically, for example, during the day, the vending machine operates in the first mode without using commercial power, and furthermore, when the power generation by the solar panel is sufficient, the storage battery is charged in the fourth mode. Then, when the sun goes down and the amount of power generated by the solar panel decreases, the power to the vending machine is supplemented by supplying power from the storage battery in the second mode. Furthermore, when no power is generated at all at night, the vending machine operates only with the storage battery by supplying power in the third mode. By appropriately selecting and switching between the first to fourth modes, so-called "off-grid" operation that does not use commercial power is possible.

[0098] When there is no power generation by the solar panel at night or other times, and the charge level of the battery decreases to a state where it cannot be discharged, the operation of the vending machine will stop. Then, for example, when dawn breaks and power generation by the solar panel starts, it enters the solar charging mode, and charging of the battery begins.

[0099] When the battery is charged to a predetermined charge rate by power generation from the solar panel, it becomes in a state where it can be discharged, and the inverter is activated by power supply from the battery to execute the first to fourth modes.

[0100] By appropriately switching and repeating the above first to fourth modes and the solar charging mode, off-grid operation becomes possible.

[0101] <Example 1 of the off-grid operation method> As an example, an unmanned vending system including a solar panel, a battery, an unmanned vending machine (vending machine), and an inverter, where the rated power consumption of the unmanned vending machine is A (W), the rated power consumption of the inverter is B (W), and the stored electricity amount at full charge of the battery is C (Wh). And construct the unmanned vending system so that (A + B)(W) × a predetermined time < C (Wh) holds.

[0102] For example, assume that the rated power consumption of the unmanned vending machine (only refrigeration operation) is 223 (W) and the rated power consumption of the inverter is 55 (W), and the unmanned vending machine is operated for 16 hours from 6:00 to 22:00. In this case, the stored electricity amount C (Wh) of the battery shall be larger than (223 + 55) × 16 (h) = 4448 Wh. As an example, a sodium battery with a capacity of 8646 (Wh) can be used for the battery.

[0103] Thereby, the vending machine can be operated for a predetermined time (16 hours) only by power supply from the battery. In this case, it is assumed that the battery is introduced into the unmanned vending system in a charged state (for example, a fully charged state) so that the stored electricity amount is C (Wh).

[0104] <Example 2 of the off-grid operation method> As an example, the unmanned vending system may be constructed such that 1.5×[(A + B)(W)×predetermined time] ≤ C(Wh) ≤ 4×[(A + B)(W)×predetermined time] holds. The preferable lower limit of the stored electricity amount C(Wh) in actual operation is 1.7×[(A + B)(W)×predetermined time]. Also, from the viewpoints of the size and weight of the storage battery, the preferable upper limit of the stored electricity amount C(Wh) in actual operation is 3.5×[(A + B)(W)×predetermined time], and more preferably 3×[(A + B)(W)×predetermined time].

[0105] In this case, the stored electricity amount C(Wh) of the storage battery becomes a sufficiently large capacity compared with the power consumption of the unmanned vending machine and the inverter, and the unmanned vending machine can be operated off-grid for a longer time without interruption of the power from the storage battery.

[0106] <Example 3 of the off-grid operation method> As an example, an unmanned vending system including a solar panel, a storage battery, an unmanned vending machine (vending machine), and an inverter, where the rated power consumption of the unmanned vending machine is A(W), the rated power consumption of the inverter is B(W), and the estimated daily power generation amount of the solar panel is D(Wh). And the unmanned vending system is constructed such that (A + B)(W)×predetermined time < D(Wh) holds.

[0107] For example, assuming that the rated power consumption of the unmanned vending machine is 223(W) and the rated power consumption of the inverter is 55(W), and the unmanned vending machine is operated for 16 hours from 6:00 to 22:00. In this case, the estimated daily power generation amount D(Wh) of the solar panel is assumed to be larger than (223 + 55)×16(h) = 4448Wh.

[0108] As a result, the vending machine can be operated for a predetermined time (16 hours) solely by the power generation of the solar panel. In this case, for example, the storage battery is introduced into the unattended vending system in a fully charged state, and when surplus power is generated by the solar panel, the storage battery is appropriately charged.

[0109] <Example 4 of the off-grid operation method> As an example, an unattended vending system including a solar panel, a storage battery, a vending machine, and an inverter, where the rated power consumption of the vending machine is A (W), the rated power consumption of the inverter is B (W), the stored power at full charge of the storage battery is C (Wh), and the estimated daily power generation of the solar panel is D (Wh / day). And it is assumed that the following two equations hold. (A + B) (W) × predetermined time < C (Wh) (A + B) (W) × predetermined time < D (Wh / day)

[0110] As a result, the vending machine can be operated for a predetermined time solely by the power supply from the storage battery or the power generation of the solar panel. In this case, for example, the storage battery is introduced into the unattended vending system in a fully charged state, and when surplus power is generated by the solar panel, the storage battery is appropriately charged.

[0111] <Example 5 of the off-grid operation method> As an example, an unattended vending system including a solar panel, a storage battery, a vending machine, and an inverter, where the rated power consumption of the vending machine is A (W), the rated power consumption of the inverter is B (W), the stored power at full charge of the storage battery is C (Wh), and the estimated daily power generation of the solar panel is D (Wh / day). And it is assumed that the following two equations hold. 1.5 × [(A + B) (W) × predetermined time] ≤ C (Wh) ≤ 4 × [(A + B) (W) × predetermined time] (A + B) (W) × predetermined time < D (Wh)

[0112] This allows the vending machine to operate for a specified period of time using only power supplied from the storage battery and power generated by the solar panel. In this case, the storage battery is introduced into the unmanned vending system in, for example, a fully charged state, and if excess power is generated by the solar panel, the storage battery is charged as appropriate. The storage capacity C (Wh) of the storage battery is sufficiently large compared to the power consumption of the unmanned vending machine and the inverter, allowing the unmanned vending machine to operate off-grid for a longer period of time without interruption to the power from the storage battery.

[0113] In each of the above embodiments, the estimated power generation amount D (Wh / day) per day can be calculated using the following formula. D (Wh / day) = Sum of nominal maximum output of solar panels (W) × Estimated solar radiation (kWh / m 2 ) × loss factor The loss coefficient is the loss coefficient when generating electricity using solar panels (including loss in power generation efficiency due to temperature rise of the solar panels and loss of power generated from the solar panels to the inverter).

[0114] The loss factor is, for example, 0.85. The loss coefficient value of 0.85 is also introduced, for example, on the website of Tokyo Gas Co., Ltd., "How much electricity can be generated per day from solar power generation?" (Source: https: / / uchi.tokyo-gas.co.jp / solor / 0065).

[0115] In addition, the estimated solar radiation (kWh / m 2 ) refers to the estimated amount of solar radiation at the optimal annual tilt angle at the location where an unmanned vending system will be installed, for example. As an example, the estimated solar radiation amount can be obtained from the data referenced in the "NEDO Solar Radiation Database MONSOLA-20." The data is published on the NEDO website below and is reproduced in Figure 15. Source:https: / / appww2.infoc.nedo.go.jp / appww / monsola_map.html

[0116] For example, in the "NEDO Solar Radiation Database MONSOLA-20," if you select Kita-ku, Osaka City from the map on the database and then select "Specify angle" and "Annual solar radiation at optimal tilt angle," you can obtain the graph in Figure 15.

[0117] Figure 16 is a simplified diagram that extracts the values ​​from Figure 15. That is, assuming installation in Kita-ku, Osaka, the figure is a graph of the estimated solar radiation in Kita-ku, Osaka from the NEDO solar radiation database MONSOLA-20. From this diagram, it is possible to obtain (1) the annual average value of monthly solar radiation, (2) the value of monthly solar radiation at the annual optimum tilt angle that corresponds to the operating month, and (3) the minimum value of the monthly solar radiation at the annual optimum tilt angle.

[0118] The estimated amount of solar radiation may be determined by referring to, for example, the annual average value of the amount of solar radiation per month. For example, the annual average value of monthly solar radiation in Kita-ku, Osaka City is 4.39 (kWh / m 2 ).

[0119] In addition, the estimated solar radiation (kWh / m 2 ) is the monthly solar radiation value at the annual optimum tilt angle corresponding to the operation month at the location where the unmanned vending system is installed. For example, if the unmanned vending system is operated only in August, the solar radiation value for August may be referenced. For example, if the system is operated only in August, the solar radiation value for August can be referenced from Figure 16. 2 ) may be referenced.

[0120] In addition, the estimated solar radiation (kWh / m 2 ) may be, for example, the minimum value of the monthly solar radiation amount at the annual optimum tilt angle in the location where the unmanned vending system is installed. The minimum value of the monthly solar radiation amount at the annual optimum tilt angle in Kita-ku, Osaka City is 3.41 (kWh / m 2 ).

[0121] In addition, the estimated solar radiation (kWh / m2 ) is calculated by dividing the solar radiation (annual average) at the annual optimum tilt angle described in "NEDO Renewable Energy Technology White Paper, 2nd Edition, Chapter 2, Solar Power Generation, P25, Figure 2-26" at the location where the unmanned vending system is to be installed, by [kWh / m 2 ] may be a value converted into "NEDO Renewable Energy Technology White Paper - Issues and Prescriptions to be Overcome for the Spread of Renewable Energy - 2nd Edition - Chapter 2 - Photovoltaic Power Generation - Edited by New Energy and Industrial Technology Development Organization, Published February 2014 - P25 - Figure 2-26" is referenced, for example, in "Source: https: / / www.nedo.go.jp / content / 100544817.pdf." Figure 2-26 from the same document is shown in Figure 17.

[0122] From Figure 17, if an unmanned vending system is installed in Japan, the required energy consumption will be 11 to 17 (MJ / m 2 / day), the annual average solar radiation on the slope at the optimal tilt angle is 1 (MJ / m 2 )=0.2778(kWh / m 2 ), the annual optimum slope solar radiation (annual average, normal value) for the slope angle in Japan is 3 to 5 (kW / m 2 / day).

[0123] The following is a summary of the minimum monthly solar radiation value at the annual optimum tilt angle, 3.41 (kWh / m), assuming that an unmanned vending system is to be installed in Kita-ku, Osaka City, based on the results of Figures 15 and 16. 2 ) is used as an example.

[0124] (1) Solar panels: Nominal maximum output operating voltage 30(V) Rated maximum output of solar panel: 275(W) Module conversion efficiency: 21% Number of solar panels used: 6 panels connected in series Solar panel installation angle: 33 degrees (installed at the annual optimum tilt angle obtained from MONSOLA-20 in Kita-ku, Osaka) Solar panel installation azimuth angle: 0 degrees (the azimuth angle is clockwise with south being 0 degrees.) (2) Estimated power generation D: D (Wh / day) = Sum of nominal maximum output of solar panels (W) × Estimated solar radiation (kWh / m 2 ) × loss coefficient (0.85). i) Sum of the nominal maximum output of the solar panels: 275 (W) x 6 panels = 1650 (W) ii) Estimated daily power generation D (Wh / day) =1650(W)×Estimated solar radiation amount 3.41(kWh / m 2 ) × loss factor (0.85) =4782 (W / day). Therefore, the amount of electricity that can be generated in a day is 4782 (W / day). (3) Amount of electricity required to operate the unmanned vending system: Rated power consumption: Calculated based on a vending machine with a rated power consumption of 223 (W) and an inverter with a rated power consumption of 55 (W) (total: 278 (W)), operating for 16 hours a day (6:00-22:00). (4) Daily amount of electricity required to operate the vending machine and inverter: 278(W)×16(h)=4448(Wh / day) Therefore, the amount of electricity required per day to operate the unmanned vending system is 4,448 (Wh / day) W. (5) From the results of (2) and (4) above, Daily power consumption required for operation: 4448 (Wh / day) < Daily power generation: 4782 (Wh / day) It can be seen that the difference of 334 (W / day) can be charged to the storage battery. (6) Relationship with battery capacity: As an example, if a sodium battery with a capacity of 8646 (Wh) is used for the storage battery, It can be seen that this system can supply approximately 1.9 times the amount of electricity required for daily operation: 4448 (Wh / day). (7) Since six solar panels are connected in series, a high voltage of 30 (V) x 6 = 180 (V) can be extracted, making it possible to use an MPPT charging method, which has the advantage of enabling rapid charging. Another advantage is that the current can be reduced, thereby reducing the amount of heat generated by the cable.

[0125] When the device with the above configuration was actually operated in Osaka Prefecture, the inverter power consumption of a beverage vending machine (only cold operation / cooling operation) with a rated power consumption of 223 (W) was measured when the compressor of the vending machine was operating, and it was 33 (W). When the compressor of the vending machine was not operating, the inverter power consumption was measured, and it was 10 (W). This confirmed that the actual power consumption of the inverter was below the rated power consumption of 55 (W), and it was found that the above configuration was valid. The above configuration is valid if the vending machine starts operating at 6:00, and when it passes the operation end time of 22:00 and enters the operation downtime (22:00 to 6:00), the controller turns off the power of the vending machine and stops it.

[0126] <Example of display function> As shown in FIG. 1, in the unmanned vending system 1, for example, a digital display screen 80 such as an LCD panel may be provided on the front of the box 2, providing a display mechanism capable of displaying the power generation status, power supply status, and the like.

[0127] Specifically, for example, as shown in Figures 18(A) to (C), the power supply status from the solar panel to the unmanned vending machine, the power supply status from the solar panel to the storage battery, and the power supply status from the storage battery to the unmanned vending machine can be displayed.

[0128] In the example of Figure 18(A), 300(W) is generated by the solar panel, and 200(W) is consumed by the vending machine while charging. The remaining charge of the storage battery (90%) and the power supply from the storage battery to the vending machine (0(W)) are also displayed.

[0129] The example in Figure 18(B) shows that 150(W) is generated by the solar panel and 50(W) is also supplied from the storage battery, resulting in 200(W) being consumed by the vending machine.

[0130] The example in FIG. 18(C) shows a situation in which no power is generated by the solar panel, and 200(W) is supplied from the storage battery, resulting in 200(W) being consumed by the vending machine.

[0131] By doing this, the power generation status, charging status, and consumption status can be displayed in real time, making it possible to visualize the use of renewable energy and helping to raise the environmental awareness of vending machine users.

[0132] In the vending machine 30 shown in FIG. 1, for example, in the form disclosed in JP 2024-22430 A (Name of device: Vending machine, Publication date: February 16, 2024), 2 It is also possible to install an absorbent. This allows the CO 2 The amount can be reduced. [Explanation of symbols]

[0133] 1. Unmanned sales system 2 Box 10. Solar Panels 20. Storage Battery 25 Controller 30 Vending Machines 35 Controller 36 Power section 40 Inverter 45 Controller 80 Digital display screen

Claims

1. An unmanned vending system equipped with solar panels, storage batteries, and unmanned vending machines.

2. An unmanned vending system equipped with a solar panel, a storage battery, and an unmanned vending machine, An unmanned vending system equipped with an inverter.

3. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned vending system in which the voltage output from the solar panels to the inverter is 100V or more.

4. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned sales system in which the sum of the rated maximum output of the solar panels is 100 (W) or more.

5. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, The annual average solar radiation at the optimum annual tilt angle at the installation site of the unmanned vending system is 3 to 5 (kW / m ２ / day), an unmanned vending system.

6. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned vending system with multiple solar panels connected in series.

7. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, A solar panel system includes a plurality of solar panel sets each including a plurality of serially connected solar panels; An unmanned vending system, wherein the plurality of solar panel sets are connected in parallel.

8. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned vending system in which the battery has a storage capacity of 50 Wh or more when fully charged.

9. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned vending system in which the rated power consumption of the inverter is 200 (W) or less.

10. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned vending system in which the rated power consumption of the unmanned vending machine is 300 (W) or less.

11. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, Solar panels with a total nominal maximum output of 100 (W) or more; An unmanned vending system having an unmanned vending machine with a rated power consumption of 700 (W) or less.

12. An unmanned vending system equipped with a solar panel, a storage battery, and an unmanned vending machine, The power supply status from the solar panel to the unmanned vending machine, The power supply status from the solar panel to the storage battery, The power supply status from the storage battery to the unmanned vending machine, An unmanned sales system equipped with a display mechanism that displays the

13. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned sales system capable of executing two or more selected from the following first to seventh modes and switching to any one of the modes. First mode: Power the unmanned vending machine with electricity generated by the solar panels Second mode: Power generated by the solar panels and power charged in the storage battery are used to power the unmanned vending machine. Third mode: Supplying electricity charged in the storage battery to an unmanned vending machine Mode 4: Power the unmanned vending machine and the storage battery using electricity generated by the solar panels Fifth mode: Supplying commercial power to the unmanned vending machine 6th mode: Supply commercial power to the unmanned vending machine and supply commercial power to the storage battery 7th mode: Supplying commercial power to the storage battery

14. The seventh mode is performed during a specific time period that is specified in advance.

14. The unmanned sales system according to claim 13.

15. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned sales system capable of executing two or more selected from the following first to fourth modes, and a solar charging mode, and capable of switching between any of the modes. First mode: Power the unmanned vending machine with electricity generated by the solar panels Second mode: Power generated by the solar panels and power charged in the storage battery are used to power the unmanned vending machine. Third mode: Supplying electricity charged in the storage battery to an unmanned vending machine Mode 4: Power the unmanned vending machine and the storage battery using electricity generated by the solar panels Solar charging mode: Charge the battery with electricity generated by the solar panel.

16. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, An unmanned vending system capable of executing two or more modes selected from the following first to fourth modes and a solar charging mode and capable of switching to any one of these modes, wherein when a predetermined percentage of charging of a storage battery is completed in the solar charging mode, the unmanned vending system transitions to any one of the first to fourth modes. First mode: Power the unmanned vending machine with electricity generated by the solar panels Second mode: Power generated by the solar panels and power charged in the storage battery are used to power the unmanned vending machine. Third mode: Supplying electricity charged in the storage battery to an unmanned vending machine Mode 4: Power the unmanned vending machine and the storage battery using electricity generated by the solar panels Solar charging mode: Charge the battery with electricity generated by the solar panel.

17. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, The rated power consumption of the unmanned vending machine is A (W), The rated power consumption of the inverter is B (W), The amount of electricity stored in the battery when it is fully charged is C (Wh), (A+B)(W)×predetermined time<C(Wh), An unmanned vending system that allows unmanned vending machines to operate off-grid at specified times.

18. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, The rated power consumption of the unmanned vending machine is A (W), The rated power consumption of the inverter is B (W), The amount of electricity stored in the battery when it is fully charged is C (Wh), 1.5×[(A+B)(W)×predetermined time]≦C(Wh)≦4×[(A+B)(W)×predetermined time], An unmanned vending system that allows unmanned vending machines to operate off-grid at specified times.

19. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, The rated power consumption of the unmanned vending machine is A (W), The rated power consumption of the inverter is B (W), The estimated power generation per day by the solar panel is D (Wh), (A+B)(W)×predetermined time<D(Wh), An unmanned vending system that allows unmanned vending machines to operate off-grid at specified times.

20. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, The rated power consumption of the unmanned vending machine is A (W), The rated power consumption of the inverter is B (W), The amount of electricity stored in the battery when it is fully charged is C (Wh), The estimated power generation per day of the solar panel is D (Wh / day), (A+B)(W)×predetermined time<C(Wh), (A+B)(W)×predetermined time<D(Wh / day), An unmanned vending system that allows unmanned vending machines to operate off-grid at specified times.

21. An unmanned vending system equipped with a solar panel, a storage battery, an unmanned vending machine, and an inverter, The rated power consumption of the unmanned vending machine is A (W), The rated power consumption of the inverter is B (W), The amount of electricity stored in the battery when it is fully charged is C (Wh). The estimated power generation per day of the solar panel is D (Wh / day), 1.5×[(A+B)(W)×predetermined time]≦C(Wh)≦4×[(A+B)(W)×predetermined time], (A+B)(W)×predetermined time<D(Wh), An unmanned vending system that allows unmanned vending machines to operate off-grid at specified times.

22. The storage battery is introduced into the unmanned vending system in a fully charged state.

22. The unmanned sales system according to any one of claims 2 to 21.

23. The estimated power generation amount D per day (Wh / day) is a numerical value calculated from the following formula:

22. The unmanned sales system according to any one of claims 19 to 21. D (Wh / day) = Sum of the nominal maximum output of the solar panels (W) x Estimated solar radiation (kWh / m ２ ) × loss factor

24. 24. The unmanned vending system of claim 23, wherein the loss factor is 0.

85.

25. The estimated solar radiation (kWh / m ２ 24. The unmanned vending system of claim 23, wherein the annual average value of monthly solar radiation at the annual optimum tilt angle at the location where the unmanned vending system is installed.

26. The estimated solar radiation (kWh / m ２ 24. The unmanned vending system of claim 23, wherein the monthly solar radiation value at the annual optimum tilt angle corresponding to the operating month at the location where the unmanned vending system is installed is the monthly solar radiation value at the annual optimum tilt angle corresponding to the operating month.

27. The estimated solar radiation (kWh / m ２ 24. The unmanned vending system of claim 23, wherein the inclination angle is the minimum value among the monthly solar radiation values ​​at the annual optimum inclination angle at the location where the unmanned vending system is installed.

28. The estimated solar radiation (kWh / m ２ ) is the amount of solar radiation (annual average) at the location where the unmanned vending system is to be installed, as described in "NEDO Renewable Energy Technology White Paper, 2nd Edition, Chapter 2, Solar Power Generation, P25, Figure 2-26". ２ 24. The unmanned sales system according to claim 23, wherein the value is converted into a value of .

29. A controller provided in the inverter and a controller provided in the storage battery are communicatively connected, The storage battery is controlled so as to be discharged at a predetermined voltage.

22. The unmanned sales system according to any one of claims 2 to 21.

30. The solar panel module conversion rate is 15% or more.

22. The unmanned sales system according to any one of claims 1 to 21.

31. The storage battery is a sodium ion battery.

22. The unmanned sales system according to any one of claims 1 to 21.

32. An unmanned vending system equipped with solar panels, storage batteries, unmanned vending machines, and carbon dioxide absorbers.

33. An unmanned sales system according to any one of claims 1 to 21, The unmanned vending machine is equipped with a carbon dioxide absorbing material.

Images