Power supply system

Abstract

To provide a power supply system capable of preventing a portable power storage device from being taken outside.SOLUTION: A power supply system is provided with a portable power storage device disposed in a controlled area set in a facility and including a secondary battery capable of supplying power to an electric device used in the controlled area, a wireless communication unit attached to the power storage device and capable of outputting a signal to an outside by wireless communication, a gate device which is provided near the entrance of the controlled area and outputs information indicating reception of a signal when receiving the signal from the wireless communication unit within a wireless communicable range, and a charging device which is arranged outside the wireless communicable range of the gate device in the controlled area and can charge a secondary battery of a power storage device.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a power supply system. [Background technology]

[0002] In recent years, portable electrical devices such as notebook personal computers (hereinafter referred to as notebook computers), tablet devices, and smartphones, as well as electrical devices that use electricity such as lighting and speakers, have become commonplace in indoor spaces in facilities such as offices, research facilities, hospitals, schools, libraries, and commercial facilities. In order to use such electrical devices, it is necessary to supply them with power.

[0003] Patent Document 1 discloses a configuration in which an electrical device is connected to a portable power storage device and power is supplied from the portable power storage device to the electrical device. Such a portable power storage device may not be owned by the user but may be installed in the facility's usage space. In this case, when a user uses an electrical device on fixtures such as a desk or table arranged in the usage space, the user uses the portable power storage device installed in the usage space to supply power to the electrical device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2023-46139 Summary of the Invention [Problem to be solved by the invention]

[0005] However, although the portable power storage device described above is provided in the utilization space, the portable power storage device may be intentionally or carelessly taken out of the utilization space. An object of the present invention is to provide a power supply system that can prevent a portable power storage device from being taken outside. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention employs the following aspects. (1) A power supply system according to one embodiment of the present invention includes a portable power storage device that is placed within a controlled area set up within a facility and that has a secondary battery capable of supplying power to electrical equipment used within the controlled area; a wireless communication unit that is attached to the power storage device and that is capable of outputting a signal via wireless communication to the outside; a gate device that is placed near an entrance to the controlled area and that, when it receives the signal from the wireless communication unit within a wireless communication range, outputs information indicating that the signal has been received; and a charging device that is placed within the controlled area but outside the wireless communication range of the gate device and that is capable of charging the secondary battery of the power storage device. According to this aspect, the power storage device is placed within a controlled area set up within the facility and is capable of supplying power to electrical devices used within the controlled area. Therefore, users can receive power for the electrical devices they use within the controlled area without needing to connect a power cord to an outlet or use a portable battery or the like. This increases convenience for users. When a gate device installed near the entrance / exit to the controlled area receives a signal from the wireless communication unit attached to the power storage device, it outputs information indicating that the signal has been received. This prevents the power storage device from being taken out of the controlled area. The secondary battery of the power storage device can be charged by a charging device installed in the controlled area. Because the charging device is located outside the wireless communication range of the gate device, when the secondary battery of the power storage device is charged by the charging device, the gate device will not receive any signals from the wireless communication.

[0007] (2) In the power supply system according to the aspect (1) above, it is preferable that the power supply system further comprises a utility fixture that is located within the controlled area, outside the range where wireless communication is possible with the gate device, and that can use the storage device and the electrical equipment. According to this aspect, by providing the fixtures within the controlled area, users can use the electrical equipment in the fixtures to perform various tasks while receiving power from the power storage device.

[0008] (3) In the power supply system according to any one of the above aspects (1) and (2), the gate device is preferably placed on a floor surface near the entrance. According to this aspect, the gate device is installed on the floor near the entrance to the controlled area, eliminating the need for construction work to install the gate device on the floor, wall, ceiling, etc. of the controlled area, thereby reducing the cost required to introduce a power supply system.

[0009] (4) In the power supply system according to the aspect (3) above, it is preferable that the gate device comprises a base portion installed on the floor surface and an antenna portion positioned above and spaced apart from the base portion and capable of wireless communication with the wireless communication unit. According to this aspect, the antenna unit is positioned above and spaced apart from the base unit, which is installed on the floor. When the power storage device is removed through an entrance or exit to the controlled area, it is highly likely that the user will be holding the power storage device in their hand. Therefore, by positioning the antenna unit above and spaced apart from the floor, wireless communication can be performed satisfactorily between the wireless communication unit attached to the power storage device and the antenna unit. This effectively prevents the power storage device from being removed from the controlled area. Furthermore, the range over which wireless communication is possible between the antenna unit and the wireless communication unit can be narrowed, and the output of the antenna unit and the wireless communication unit can be reduced, thereby reducing power consumption.

[0010] (5) In the power supply system according to any one of the above aspects (1) to (4), it is preferable that the gate device transmits a predetermined detection signal within the range via wireless communication, and the wireless communication unit outputs the signal when it receives the detection signal. According to this aspect, the wireless communication unit outputs a signal when it receives a detection signal from the gate device, which eliminates the need for the wireless communication unit to output a signal constantly, thereby reducing power consumption in the wireless communication unit.

[0011] (6) In the power supply system according to any one of the above aspects (1) to (5), it is preferable that the storage device comprises a main body portion incorporating the secondary battery and a handle portion protruding outward from the main body portion, and the wireless communication unit is mechanically connected to the handle portion. According to this aspect, by mechanically connecting the wireless communication unit to the handle provided on the power storage device, the wireless communication unit can be attached using the handle provided to increase the portability of the power storage device. Therefore, there is no need to modify the power storage device in order to attach the wireless communication unit, and a power supply system can be introduced at low cost.

[0012] (7) In the power supply system according to the aspect (6) above, it is preferable that the wireless communication unit is disposed in a portion of the outer surface of the main body that is surrounded by the handle portion. According to this aspect, the wireless communication unit is disposed in a portion of the outer surface of the main body that is surrounded by the handle, which prevents the wireless communication unit from protruding beyond the periphery of the main body and prevents the wireless communication unit from colliding with other fixtures when the user moves the power storage device.

[0013] (8) In the power supply system according to any one of the above aspects (1) to (7), it is preferable that the power storage device is available only within the controlled area. According to this aspect, it is possible to prevent a power storage device that is usable within a controlled area from being taken out of the controlled area.

[0014] (9) In the power supply system according to any one of the above aspects (1) to (8), it is preferable that the electrical equipment is brought into the controlled area by a user from outside the controlled area and used within the controlled area. According to this aspect, power can be supplied from a power storage device provided within the controlled area to electrical devices that users bring into the controlled area from outside the controlled area and use within the controlled area.

[0015] (10) In the power supply system according to the aspect (9) above, it is preferable that the electrical device includes an appliance storage battery that can be charged with power supplied from the power storage device. According to this aspect, the device storage battery provided in the electrical device can be charged with power supplied from the power storage device provided in the controlled area. [Effects of the Invention]

[0016] According to one embodiment of the present invention, a portable power storage device can be prevented from being taken outside. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic diagram showing the overall configuration of a power supply system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view showing a power storage device of the power supply system. [Figure 3] FIG. 2 is a perspective view showing a wireless communication unit attached to the power storage device. [Figure 4] FIG. 10 is a diagram showing a gate device installed near the entrance to the controlled area of ​​the power supply system. [Figure 5] FIG. 2 is a perspective view showing an example of a fixture used in the power supply system. [Figure 6] FIG. 2 is a perspective view showing an example of a charging device of the power supply system. [Figure 7] 10A and 10B are diagrams illustrating a modified example of a wireless communication unit attached to the power storage device. DETAILED DESCRIPTION OF THE INVENTION

[0018] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A power supply system according to an embodiment of the present invention will now be described with reference to the accompanying drawings. However, the present invention is not limited to this embodiment.

[0019] FIG. 1 is a schematic diagram showing the overall configuration of a power supply system 1 according to an embodiment of the present invention. As shown in FIG. 1, the power supply system 1 includes a power storage device 2 (see FIGS. 2 and 3), a wireless communication unit 3 (see FIGS. 2 and 3), a gate device 5, a user fixture 4, and a charging device 7. The power supply system 1 is installed in a controlled area R set up within a facility such as an office, research facility, hospital, school, library, or commercial facility. Here, the controlled area R is set up within an office 100 having an entrance / exit 101. In this embodiment, the controlled area R is set up for one office 100. The office 100 has, for example, a rectangular shape in a plan view, and is surrounded on all four sides by walls 100w.

[0020] Fig. 2 is a perspective view showing the power storage device 2 of the power supply system 1. Fig. 3 is a perspective view showing the wireless communication unit 3 attached to the power storage device 2. 2 and 3, the power storage device 2 is a portable power storage device that can be charged and discharged. The power storage device 2 can supply power to a user's electric device 200 that is used within the controlled area R. Specifically, the power storage device 2 can supply power to an electric device 200 such as a laptop computer, a tablet terminal, or a smartphone that a user brings into the controlled area R from outside the controlled area R and uses within the controlled area R. Such an electric device 200 includes an equipment storage battery (not shown) such as a lithium battery that can be charged with power supplied from the power storage device 2. The power storage device 2 can be used only within the controlled area R. In other words, if the power storage device 2 is about to be taken out of the controlled area R, a gate device 5 (described later) outputs an alarm notification, thereby allowing the power storage device 2 to be used only within the controlled area R. In this embodiment, the power storage device 2 includes a main body 21 and a handle 22.

[0021] As shown in FIG. 2, the main body 21 is formed, for example, in the shape of a rectangular column extending in the vertical direction. The main body 21 is formed so that the outer dimensions thereof gradually decrease from bottom to top. The shape of the main body 21 is not limited to a rectangular column, and may be a cylinder or the like. The main body 21 incorporates a secondary battery 23, such as a rechargeable lithium battery. A plurality of USB ports 21p connected to the secondary battery 23 are provided on the outer periphery of the main body 21. By connecting connection cables (not shown) to these USB ports 21p, it is possible to supply power to the electrical device 200 used by the user.

[0022] A battery-side connection terminal (not shown) connected to the secondary battery 23 is provided on the bottom surface of the main body 21. The built-in secondary battery 23 can be charged via this battery-side connection terminal. The battery-side connection terminal has, for example, an annular or circular planar shape and is provided at the center of the bottom surface of the prismatic main body 21.

[0023] As shown in FIGS. 2 and 3, the handle portion 22 is provided on the upper part of the main body portion 21. The handle portion 22 is provided so as to protrude upward (outward) from the main body portion 21. The handle portion 22 integrally includes, for example, a pair of columnar portions 22a extending upward from the outer peripheral end of the upper surface 21t of the main body portion 21, and a connecting rod portion 22b connecting the upper ends of the pair of columnar portions 22a. The connecting rod portion 22b is formed so that its central portion curves upward relative to both end portions in the extension direction. A user can lift the electricity storage device 2 by gripping the connecting rod portion 22b of the handle portion 22. The shape of the handle portion 22 is not limited to the shape shown in the drawings, but a shape that allows it to be lifted with one hand is preferable.

[0024] The wireless communication unit 3 can output a signal to the outside via wireless communication. The wireless communication unit 3 is a so-called IC tag. The wireless communication unit 3 of this embodiment outputs a predetermined signal when receiving a detection signal from a gate device 5 described below. The wireless communication unit 3 has a substantially rectangular shape when viewed from above and is flat in the vertical direction.

[0025] The wireless communication unit 3 is attached to the power storage device 2. The wireless communication unit 3 of this embodiment is attached to the power storage device 2 via a holder 31. The holder 31 has a holder main body 32 that encases the wireless communication unit 3, and a locking string 33 that locks the holder main body 32 to the handle portion 22. The holder main body 32 is arranged to be wrapped around the wireless communication unit 3 in the direction of its short side. The wireless communication unit 3 enclosed by the holder main body 32 is arranged along the upper surface 21t of the main body 21. The wireless communication unit 3 is arranged in a portion of the outer surface of the main body 21 that is surrounded by the handle portion 22.

[0026] The locking string 33 is connected to the holder main body 32 and is locked to the pair of pillars 22a of the handle 22. In this way, the wireless communication unit 3 is mechanically (physically) connected to the handle 22. Furthermore, the wireless communication unit 3 is not electrically connected to the main body 21.

[0027] FIG. 4 is a diagram showing a gate device 5 provided near the entrance / exit 101 of the controlled area R of the power supply system 1. As shown in FIG. As shown in Figures 1 and 4, the gate device 5 is installed near an entrance / exit 101 of the controlled area R. If multiple entrances / exits 101 are installed in the controlled area R, the gate device 5 is installed near each of the entrances / exits 101. The gate device 5 is placed on the floor surface F near the entrances / exits 101.

[0028] 4, the gate device 5 includes a base 51 installed on a floor F, a support 52 extending upward from the base 51, and an antenna 53 supported on the upper end of the support 52. The base 51 is, for example, disk-shaped and is arranged along the floor F. The antenna section 53 is supported by the support 52 and is disposed at a position spaced above the base section 51. The antenna section 53 is capable of wireless communication with the wireless communication unit 3. The antenna section 53 may include at least one of a transmitting antenna for transmitting signals to the wireless communication unit 3 and a receiving antenna from the wireless communication unit 3, or may include a transmitting / receiving antenna for transmitting and receiving signals to and from the wireless communication unit 3. In this embodiment, the antenna unit 53 outputs a predetermined detection signal within a preset range A (for example, a radius of about 1.5 to 2.5 m). When the wireless communication unit 3 receives a detection signal from the antenna unit 53, the antenna unit 53 receives the predetermined signal output from the wireless communication unit 3. If the opening width of the entrance / exit 101 is larger than the range A in which wireless communication is possible with the antenna unit 53, the gate devices 5 may be arranged on both sides of the entrance / exit 101.

[0029] When the gate device 5 receives a signal from the wireless communication unit 3 within the wireless communication range A, it outputs information indicating that the signal has been received. For this reason, for example, the base part 51 contains a power supply device for driving the antenna part 53, a detection circuit for detecting the signal from the wireless communication unit 3, and a buzzer for outputting, for example, an alarm sound as information indicating that the signal has been received when the detection circuit detects a signal.

[0030] As shown in FIG. 1 , the user fixtures 4 are located within the controlled area R, outside the wireless communication range A of the gate device 5. The user fixtures 4 are equipped with a power storage device 2 and electrical equipment 200 that can be used by users. In this embodiment, the user fixtures 4 include a plurality of desks 4A and a plurality of tables 4B. Each desk 4A is generally used by one user. Each table 4B may be used by a single user, as with the desks 4A, or may be used by multiple users or for resting purposes.

[0031] Fig. 5 is a perspective view showing an example of the fixture 4 of the power supply system 1. Fig. 5 shows a desk 4A as an example of the fixture 4. As shown in FIG. 5 , the user fixture 4 (desk 4A) has a support structure 41 installed on the floor surface F and a top plate 42 supported from below by the support structure 41. The top plate 42 can have the electric device 200 placed on its upper surface. The user places the electric device 200 that the user has brought into the controlled area R and the power storage device 2 provided in the controlled area R on the top plate 42. Then, the user connects the power storage device 2 and the electric device 200 with a connection cable 300, and uses the electric device 200 while receiving power supply from the power storage device 2.

[0032] FIG. 6 is a perspective view showing an example of the charging device 7 of the power supply system 1. As shown in FIG. As shown in FIG. 1, the charging device 7 is placed within the controlled area R, outside the range A where wireless communication is possible with the gate device 5. The charging device 7 is capable of charging the secondary battery 23 of the power storage device 2. As shown in FIG. 6, the charging device 7 is formed, for example, in the shape of a shelf. The charging device 7 is placed on a floor surface F. The charging device 7 has a plurality of (four) support posts 71 rising upward from the floor surface F, and a plurality of shelf boards 72 supported by the plurality of support posts 71. The plurality of shelf boards 72 are provided at intervals in the vertical direction.

[0033] A battery tray 73 is provided on each shelf board 72. A plurality of power storage devices 2 can be placed on each battery tray 73. A tray-side connection terminal 73s is provided on the battery tray 73. The tray-side connection terminal 73s can be electrically connected to a battery-side connection terminal provided on the bottom of the power storage device 2 by coming into contact with the battery-side connection terminal. The tray-side connection terminal 73s is connected to a control circuit unit (not shown). This control circuit unit is connected via a power cord to an outlet (not shown) provided on the floor surface F or the like. The control circuit unit converts AC power supplied via the power cord into DC power of a predetermined voltage and supplies it to the tray-side connection terminal 73s.

[0034] In such an electric power supply system 1, after entering the controlled area R, the user removes the power storage device 2 from the charging device 7. Thereafter, the user connects the electric device 200 to the power storage device 2 in the fixture 4 and performs work. When the user leaves the controlled area R after completing his / her work, he / she returns the power storage device 2 to the charging device 7 and then passes through the entrance / exit 101. When a user carrying the power storage device 2 enters the wireless communication range A of the gate device 5, the gate device 5 receives a signal from the wireless communication unit 3 and sounds an alarm. In this way, the user is warned not to take the power storage device 2 outside the controlled area R.

[0035] Thus, in this embodiment, the power supply system 1 is configured to include a portable power storage device 2 that is placed within a controlled area R set up within the facility and that is equipped with a secondary battery 23 that can supply power to electrical equipment 200 used within the controlled area R; a wireless communication unit 3 that is attached to the power storage device 2 and that can output a signal via wireless communication to the outside; a gate device 5 that is placed near an entrance / exit 101 of the controlled area R and that, when it receives a signal from the wireless communication unit 3 within a wireless communication range A, outputs information indicating that a signal has been received; and a charging device 7 that is placed within the controlled area R, outside the wireless communication range A of the gate device 5, and that can charge the secondary battery 23 of the power storage device 2. According to this configuration, the power storage device 2 is placed within a controlled area R set up within the facility, and is capable of supplying power to the electrical devices 200 used within the controlled area R. This allows the user to receive power supply to the electrical devices 200 used within the controlled area R, and eliminates the need to connect a power cord to an outlet or use a mobile battery or the like that the user carries with them. This improves convenience for the user. When the gate device 5 provided near the entrance / exit 101 of the controlled area R receives a signal from the wireless communication unit 3 attached to the power storage device 2, the gate device 5 outputs information indicating that the signal has been received. This makes it possible to prevent the power storage device 2 from being taken out of the controlled area R. Furthermore, the secondary battery 23 of the power storage device 2 can be charged by a charging device 7 provided within the controlled area R. Since the charging device 7 is located outside the range A in which wireless communication is possible for the gate device 5, when the charging device 7 charges the secondary battery 23 of the power storage device 2, the gate device 5 does not receive any signals from the wireless communication.

[0036] The power supply system 1 is further configured to be located within the controlled area R, outside the wireless communication range A of the gate device 5, and further includes a power storage device 2 and a fixture 4 that can use the electrical equipment 200. According to this configuration, by providing the fixtures 4 within the management area R, users can use the electrical equipment 200 in the fixtures 4 to perform various tasks while receiving power from the power storage device 2.

[0037] The gate device 5 is placed on the floor F near the entrance 101. According to this configuration, the gate device 5 is installed on the floor surface F near the entrance / exit 101 of the controlled area R, eliminating the need for construction work to install the gate device 5 on the floor, wall, ceiling, etc. of the controlled area R. This makes it possible to reduce the cost required to introduce the power supply system 1. Furthermore, since the charging device 7 is also placed on the floor surface F, no construction work is required to install the charging device 7. In this way, the entire power supply system 1 can be installed without any construction work.

[0038] The gate device 5 is also configured to include a base portion 51 that is placed on the floor surface F, and an antenna portion 53 that is positioned above and spaced apart from the base portion 51 and is capable of wireless communication with the wireless communication unit 3. According to this configuration, the antenna unit 53 is disposed at a position spaced above the base unit 51 that is placed on the floor F. When the power storage device 2 is taken out through the entrance / exit 101 of the controlled area R, it is highly likely that the user will be holding the power storage device 2 in their hand. Therefore, by disposing the antenna unit 53 at a position spaced above the floor F, the antenna unit 53 can more reliably receive signals from the wireless communication unit 3 attached to the power storage device 2. This makes it possible to effectively prevent the power storage device 2 from being taken out of the controlled area R. Furthermore, it is possible to narrow the range A over which wireless communication is possible between the antenna unit 53 and the wireless communication unit 3, thereby reducing the output of the antenna unit 53 and the wireless communication unit 3 and thereby reducing power consumption.

[0039] Furthermore, the gate device 5 transmits a predetermined detection signal within the range A by wireless communication, and the wireless communication unit 3 outputs a signal when it receives the detection signal. According to this configuration, the wireless communication unit 3 outputs a signal when it receives a detection signal from the gate device 5. This eliminates the need for the wireless communication unit 3 to output a signal all the time, thereby reducing power consumption in the wireless communication unit 3.

[0040] The power storage device 2 also includes a main body 21 incorporating a secondary battery 23 and a handle 22 protruding outward from the main body 21, and the wireless communication unit 3 is mechanically connected to the handle 22. According to this configuration, by mechanically connecting the wireless communication unit 3 to the handle 22 provided on the power storage device 2, the wireless communication unit 3 can be attached using the handle 22, which is provided to increase the portability of the power storage device 2. Therefore, there is no need to modify the power storage device 2 in order to attach the wireless communication unit 3, and the power supply system 1 can be introduced at low cost.

[0041] The wireless communication unit 3 is arranged in a portion of the outer surface of the main body 21 that is surrounded by the handle 22. According to this configuration, the wireless communication unit 3 is disposed in a portion of the outer surface of the main body 21 that is surrounded by the handle 22. This prevents the wireless communication unit 3 from protruding beyond the periphery of the main body 21, and prevents the wireless communication unit 3 from colliding with other furniture when the user moves the power storage device 2, for example.

[0042] The power storage device 2 is configured to be usable only within the controlled area R. According to this configuration, it is possible to prevent the power storage device 2 that is usable within the controlled area R from being taken out of the controlled area R.

[0043] The electric device 200 is configured to be brought into the controlled area R from outside the controlled area R by a user and used within the controlled area R. According to this configuration, power can be supplied from the power storage device 2 provided in the managed area R to the electric device 200 that the user brings into the managed area R from outside the managed area R and uses in the managed area R.

[0044] The electric device 200 is also configured to include an equipment storage battery that can be charged with power supplied from the power storage device 2. According to this configuration, the device storage battery provided in the electrical device 200 can be charged with the power supplied from the power storage device 2 provided in the management area R.

[0045] (Other embodiments) Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Addition, omission, substitution, and other modifications of the configuration are possible without departing from the spirit of the present invention. The present invention is not limited by the above description, but is limited only by the appended claims. For example, in the above-described embodiment, the wireless communication unit 3 is disposed along the upper surface 21t of the main body 21 of the power storage device 2 via the holder 31, but this is not limiting. For example, as shown in FIG. 7 , the wireless communication unit 3 may be fastened to the handle 22 via a holder 35. The holder 35 has a holder main body 36 that encases the wireless communication unit 3 and a fastening string 37 that fastens the holder main body 36 to the handle 22. The holder main body 36 is bent in a U-shape from below so as to fit along both sides of the wireless communication unit 3. The fastening string 37 is connected to the upper end of the holder main body 36. The fastening string 37 is fastened to the lower end of the columnar portion 22a of the handle 22. In this manner, the wireless communication unit 3 is mechanically (physically) connected to the handle 22.

[0046] Furthermore, in the above-described embodiment, the controlled area R is set within one office 100, but this is not limited thereto. The controlled area R may be set as a plurality of offices 100 that communicate with each other, or as a plurality of offices 100 and a corridor (not shown). Furthermore, the controlled area R may be set across multiple floors. The gate devices 5 are installed near each of the entrances / exits 101 provided in such a controlled area R. For example, when one controlled area R is made up of a plurality of offices 100 that communicate with each other, the gate devices 5 are not installed at the connection ports connecting the offices that make up one controlled area R, but are installed only near the entrances / exits 101 of the controlled area R itself.

[0047] In the above-described embodiment, the handle 22 protrudes upward from the main body 21, but this is not limitative. The handle 22 may also be provided so as to protrude laterally from the side surface of the main body 21.

[0048] In the above-described embodiment, the gate device 5 is placed on the floor surface F near the entrance / exit 101, but this is not limitative. The gate device 5 may also be attached to a bracket or the like fixed to a wall or ceiling near the entrance / exit 101 with screws or the like. In the above-described embodiment, the gate device 5 is provided in a portion of the vicinity of the entrance / exit 101 that is located within the controlled area R, but the present invention is not limited to this configuration. The gate device 5 may also be provided in a portion of the vicinity of the entrance / exit 101 that is located outside the controlled area R. In the above-described embodiment, the wireless communication unit 3 is provided outside the power storage device 2, but the present invention is not limited to this configuration. The wireless communication unit 3 may be built into the power storage device 2. In this case, the possibility that the wireless communication unit 3 is removed from the power storage device 2 can be reduced.

[0049] In the above-described embodiment, when the gate device 5 detects a signal from the wireless communication unit 3, it outputs, for example, an alarm sound as information indicating that the signal has been received, but this is not limited to this. For example, the information indicating that the signal has been received from the wireless communication unit 3 may be lit by a lamp, displayed on a display or the like, or notified to a management center that manages the controlled area R. In addition, within the scope of the spirit of the present invention, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, and the above-described modified examples may be combined as appropriate. [Explanation of symbols]

[0050] 1. Power supply system 2...Electricity storage device 3...Wireless communication unit 4. Fixtures used 5...Gate device 7…Charging device 21...Main body 22...Handle part 23…Secondary battery 42...Tabletop 51...Base 53...Antenna section 101...Entrance / exit 200...Electrical equipment A...Range F…Floor surface R…Controlled area

Claims

1. a portable power storage device that is placed in a controlled area set within a facility and includes a secondary battery that can supply power to electrical equipment used within the controlled area; a wireless communication unit attached to the power storage device and capable of outputting a signal to an outside via wireless communication; a gate device that is provided near an entrance to the controlled area, and that outputs information indicating that the signal has been received when the signal is received from the wireless communication unit within a wireless communication range; a charging device that is arranged within the controlled area, outside the range where wireless communication is possible of the gate device, and that is capable of charging the secondary battery of the power storage device; Power supply system.

2. and a fixture that is located within the controlled area and outside the wireless communication range of the gate device and that can use the power storage device and the electrical equipment. The power supply system according to claim 1 .

3. The gate device is Placed on the floor near the entrance The power supply system according to claim 1 or 2.

4. The gate device is a base portion installed on the floor surface; an antenna portion that is disposed at a position spaced above the base portion and that is capable of wireless communication with the wireless communication unit; The power supply system according to claim 3 .

5. the gate device transmits a predetermined detection signal within the range by wireless communication; When the wireless communication unit receives the detection signal, it outputs the signal. The power supply system according to claim 1 or 2.

6. The power storage device is a main body portion incorporating the secondary battery; a handle portion provided so as to protrude outward from the main body portion, The wireless communication unit is mechanically connected to the handle. The power supply system according to claim 1 or 2.

7. The wireless communication unit is disposed on the outer surface of the main body in a portion surrounded by the handle. The power supply system according to claim 6 .

8. The power storage device can be used only within the controlled area. The power supply system according to claim 1 or 2.

9. The electrical equipment is brought into the controlled area by the user from outside the controlled area and used within the controlled area. The power supply system according to claim 1 or 2.

10. The electrical device includes an appliance battery that can be charged with power supplied from the power storage device. The power supply system according to claim 9.

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