JP4937364B2 - Combined power supply system - Google Patents

Description

  The present invention relates to a power supply system that combines a wireless communication base station such as a mobile phone and a power supply station that charges a battery mounted on an electric vehicle such as an electric vehicle or a hybrid vehicle.

  Electric vehicles such as electric vehicles and hybrid vehicles have been developed for the purpose of reducing environmental impact. In order to widely disseminate these electric vehicles, it is necessary to provide power supply stands for charging on-vehicle batteries in various places. In particular, a power supply stand that can charge an in-vehicle battery while an electric vehicle is stored in a parking lot is expected to enable efficient charging. There exists a thing of patent document 1 as a technique regarding such a power supply stand.

  This technology issues a parking ticket that records the time of entry when the vehicle enters the parking lot, and allows the vehicle to be issued when the parking fee is settled by reading the parking ticket when leaving the vehicle. It is related with the parking lot apparatus comprised as follows. In this parking lot, a charging device (power supply stand) for charging a battery (vehicle battery) of an electric vehicle and a charging information input / output device are provided. The charging information input / output device includes charging information recording means capable of recording calculation information of charging time of the battery by the charging device with respect to the parking ticket. Further, the fee settlement machine includes a charging fee calculation means for calculating a charging fee from the charging information recorded on the parking ticket. And this parking lot apparatus is comprised so that the vehicle may be left when payment of a parking charge and a charge charge is completed.

  On the other hand, a large number of base stations are used in wireless communication such as cellular phones. There are several types of base stations such as a tower station and a building station. In the future, it is considered to install a simple base station such as a steel pipe pole station or a small radio station in a commercial facility such as a convenience store. Such a base station is generally provided with an emergency power supply (backup battery) in preparation for a power outage during a disaster or the like.

JP 2001-312772 A

  However, the power feeding system and the wireless base station are usually installed at locations apart from each other, and even if they are installed by chance, they are not related to each other and function together. It is not done. For example, in order to use a power supply stand, an in-vehicle battery of an electric vehicle is connected to the power supply stand, and the battery is charged by supplying electric power supplied from a commercial power source to the in-vehicle battery through the power supply stand. On the other hand, the radio base station is similarly driven only by power from a commercial power source, and there is basically no functional relationship between the power supply station and the radio base station. In particular, when the commercial power supply fails due to a disaster, etc., if the capacity of the emergency power supply of the radio base station is exhausted, the radio base station cannot be operated unless power is restored, resulting in loss of communication infrastructure in the disaster area. It becomes a problem. On the other hand, in disaster areas, it is desired that various information such as evacuation sites, distribution locations for relief supplies, and restoration status of damaged infrastructure be provided without delay.

  The present invention has been made in view of the above circumstances, and one of its purposes is to provide a composite power feeding system capable of extending the use of a radio base station for a longer period even when a commercial power supply fails. is there.

  Another object of the present invention is to provide a composite power supply system that can provide various information to a power outage area using a radio base station even when a commercial power supply fails.

  The present invention achieves the above object by combining a radio base station and a power supply stand, and driving the radio base station using an in-vehicle battery of an electric vehicle connected to the power supply stand.

  The composite power supply system of the present invention includes a power supply stand for supplying power to a vehicle-mounted battery of an electric vehicle, a radio base station attached to the power supply stand, and a commercial power supply that supplies power to the power supply stand and the radio base station in normal times. An emergency authentication means for authenticating an electric vehicle connected to the power supply stand in an emergency when the commercial power source is not available, and a power supply for the power supply stand and the radio base station in the emergency Switching means for switching to an in-vehicle battery of an electric vehicle authenticated by the means.

  According to this configuration, the power supply stand and the wireless base station are operated using a commercial power source in normal times, and in the case of an emergency when the commercial power supply fails, the power supply stand and the wireless base are powered by the onboard battery of the electric vehicle connected to the power supply stand. The station can be operated. Therefore, the radio base station can be operated for a long period of time exceeding the capacity of the emergency power supply, and can contribute to securing communication means in a power outage area. Further, by using the emergency authentication means, the power source used in an emergency can be limited to the on-board battery of a specific electric vehicle that has been authenticated.

  As an aspect of the present invention, an information display unit provided in at least one of the power supply station and the radio base station, and a server that communicates information signals to be displayed on the information display unit to the radio base station are provided. Can be mentioned.

  According to this structure, the signal of the information displayed on the information display means can be acquired by driving the wireless base station with the power source of the in-vehicle battery and communicating with the server.

  As one form of this invention, when the said wireless base station cannot communicate with a server, it is mentioned that an ad hoc communication means which forms an ad hoc network with the other wireless base station which has the same structure is mentioned. In that case, the ad hoc communication means in the radio base station that cannot communicate with the server is a signal of information displayed on the information display means, and the signal acquired by the radio base station that can communicate with the server is transmitted via the ad hoc network. get.

  According to this configuration, even if the wireless base station (invalid base station) cannot communicate with the server for some reason, an effective base station can be formed by forming an ad hoc network with the wireless base station (effective base station) that can communicate with the server. The information acquired from the server can also be acquired by the invalid base station via the ad hoc network. Therefore, if the invalid base station is operated with the power of the vehicle battery connected to the power supply station, the information obtained from the valid base station can be displayed on the information display means.

  As one aspect of the present invention, the information displayed on the information display means is a disaster situation that causes the commercial power source to be unavailable, an evacuation site near the power supply station or a radio base station, the power supply station or It may be one or more pieces of information related to the distribution of relief supplies in the vicinity of the radio base station and the restoration of the public facilities damaged by the disaster.

  According to this configuration, various information required in the disaster area can be displayed on the information display means in the power supply station combined with the radio base station, and such information can be presented to the disaster victim.

  According to the composite power supply system of the present invention, the power supply stand and the radio base station can be operated by using the in-vehicle battery of the electric vehicle connected to the power supply stand as a power source in the event of an emergency when the commercial power supply fails.

It is a schematic explanatory drawing of the compound electric power feeding system which concerns on embodiment of this invention in the normal time. It is a schematic explanatory drawing of the composite electric power feeding system which concerns on embodiment of this invention in emergency. The external appearance of the compound electric power feeding stand used in Embodiment 1 is shown, (A) is a front view, (B) is a right view. It is a functional block diagram of the composite electric power supply stand used for the system of FIG. It is a functional block diagram of the server used for the system of FIG. It is a flowchart which shows the process sequence using the system of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

[System configuration]
{Overview}
As shown in FIGS. 1 and 2, the system 1 includes a combined power supply station 10 installed in a parking lot such as a convenience store or a monthly / hourly rental parking lot, and a commercial power source for supplying power to the stand 10. Information indicating the PS, the terminal 20 used by the user of the stand 10, the server 30 communicating with each of the composite power supply stand 10 and the terminal 20 via the communication network, information transmitted from the server 30, and the like The display means 40 is a main component. The composite power supply station 10 has a function as a power supply station 10CS for charging an in-vehicle battery of the electric vehicle 50 and a function of a radio base station 10BS such as a mobile phone.

  When the commercial power source PS is available, as shown in FIG. 1, the user parks the electric vehicle 50 in the parking lot, connects the combined power supply stand 10 and the in-vehicle battery with the power cable 60, and In response to a request via the server 30, the in-vehicle battery is supplied with power from the composite power supply stand 10. The in-vehicle battery is charged with this power supply, and the amount of power required for charging is measured by the composite power supply stand 10. The measurement result is transmitted from the power supply station 10 to the server 30, and the server 30 calculates a charge for using the power supply system based on the amount of power. This usage fee is notified to the user by being transmitted from the server 30 to the terminal 20. At this normal time, various advertisements and the like are displayed on the information display means 40.

  On the other hand, when the commercial power supply PS fails due to a disaster such as an earthquake, as shown in FIG. 2, the in-vehicle battery of the electric vehicle 50 is connected to the combined power supply stand 10, and the combined power supply stand 10 is operated using this in-vehicle battery as a power source. Communication with the server 30. The user of this electric vehicle 50 is a user who has approved that he / she will be dispatched to the composite power supply stand 10 to provide the in-vehicle battery as a power source for the composite power supply stand 10 in the event of a disaster, and is registered in advance in the composite power supply stand 10 or the server 30. Has been. In this emergency, the information display means 40 displays the disaster related information acquired from the server 30. Hereinafter, the configuration of each unit will be described in detail.

{Composite power supply stand}
The composite power supply stand 10 normally functions as a device for charging and stopping the power supply to the in-vehicle battery of the electric vehicle 50 and charging the in-vehicle battery. Functions as a device for supplying to 10BS. The composite power supply station 10 in this example is a low-speed charging station, but may be a high-speed charging station.

  A more specific example of the appearance of the composite power supply stand 10 is shown in FIG. The stand 10 is substantially cylindrical as a whole, and includes an underground portion 10G buried in the ground and a ground portion standing on the ground, and a large-diameter portion 10F having a large diameter on the base side of the ground portion, The upper portion has a small-diameter portion 10N whose diameter decreases toward the tip. Below the large-diameter portion 10F, a component as a power supply station 10CS is provided, and above it is a component that functions as a radio base station 10BS, between which a power / communication board 10P used for both Is attached. An information display means 40 is externally provided above the large-diameter portion 10F. An antenna 10A of a radio base station is installed at the tip of the small diameter portion 10N. The dimensions of the stand 10 are: height: about 15 m, size of the information display means 40: about 1 m × 0.5 m, installation height of the display means 40: about 5 m, and maximum diameter of the ground part: about 0.8 m.

  In this example, a composite power supply station 10 having a communication function with the server 30 is provided in one of a plurality of parking spaces partitioned in a parking lot, and the communication function of the composite power supply station 10 is used for the remaining parking spaces. A slave power supply stand that communicates with the server 30 is provided. As shown in FIG. 4, the composite power supply stand 10 includes a switch unit 102, an electric energy measuring unit 104, an AC / DC converter 106, a backup battery 108 (emergency power supply), a base station 110, an emergency authentication unit 112, an authentication unit. Data acquisition means 114, information display means 40, ad hoc communication means 118, and stand control means 120 are provided. In FIG. 4, a white arrow and a hatched arrow indicate the flow of power during normal times, and a black arrow and a hatched arrow indicate the flow of power during emergency.

<Switching means>
The switch means 102 has two functions. One of them is that power is supplied to the in-vehicle battery according to a request made by the user from the terminal 20 via the server 30, and the power supply is cut off from the electric vehicle 50 side or supplied from the measurement result of the electric energy measuring means 104. This function stops power supply based on a stop command. The other is a function as switching means for switching the power source for driving the base station 110 to the in-vehicle battery 220 connected to the composite power supply stand 10 when the commercial power source PS is blacked out.

<Electric energy measurement means>
The power amount measuring means 104 measures the amount of power supplied from the composite power supply stand 10 to the in-vehicle battery. Various known watt-hour meters can be used for measuring the electric energy. The measurement result of this watt-hour meter is transmitted to the server 30 via the base station 110.

<AC / DC converter>
The AC / DC converter 106 converts the power of the commercial power source PS from alternating current to direct current. The direct current converted from the alternating current is temporarily stored in the backup battery 108 and used to drive the components of the composite power supply stand 10 as necessary.

<Backup battery>
The backup battery 108 normally stores the direct current converted by the AC / DC converter 106 and is also used as a power source for driving the components of the composite power supply stand 10. In an emergency, the backup battery 108 is combined with the commercial power source PS. Used as a power source for the power supply stand 10. The capacity of the backup battery 108 may be a capacity that can drive the composite power supply station 10 for a predetermined time in an emergency. For example, the predetermined time is practically about 30 minutes to 2 hours.

  This backup battery 108 stops the power supply required for the operation of the base station 110 when the remaining capacity becomes a certain value or less after the start of discharging at the time of a power failure of the commercial power source PS, and emergency authentication means 112 described later. It may be possible to wait in a state where a capacity necessary for authentication is secured. Specifically, capacity detection means (not shown) for detecting the capacity of the backup battery 108, and an operation mode for supplying power to the base station 110 based on the detection result, authentication by the emergency authentication means 112 is performed. What is necessary is just to set it as the composite electric power supply stand 10 provided with the battery mode switching means (illustration omitted) which switches to the standby mode which minimizes power consumption in the state which ensured the required capacity | capacitance.

<Base station>
The base station 110 includes a base station main body and an antenna, and has a function as a radio base station for public wireless communication. In addition, the base station 110 has various functions such as a command for power supply / stop of the switch unit 102 and a measurement result of the energy measuring unit 104. It also functions as a stand side communication means for transmitting / receiving data to / from the server 30. In this example, a mobile phone network is used for communication between the composite power supply station 10 and the server 30. An example of this wireless communication standard is WiMAX (Wymax: Worldwide Interoperability for Microwave Access). In a base station of a mobile communication network, a plurality of base stations are usually connected to one mobile communication control station, and the mobile communication control station is connected to a gateway exchange. These base station-control station and control station-switch exchanges are connected by wires such as optical fibers. The same applies to the base station 110 in this example.

<Emergency authentication method>
The emergency authentication means 112 authenticates the user of the composite power supply stand 10 and the electric vehicle 50. This authentication function can be provided in the server 30, but considering the case where the server 30 and the composite power supply stand 10 cannot communicate in an emergency, the composite power supply stand 10 may have a user authentication function. preferable. Specifically, user master information such as an ID and a password is stored, and when the commercial power source PS is out of power, the authentication data acquired by the authentication data acquisition unit 114 described below is referred to as user master information. User authentication.

<Authentication data acquisition means>
The authentication data acquisition unit 114 is a unit for acquiring authentication data at the composite power supply station 10. As a specific example of the authentication data acquisition means 114, there is an authentication communication means performed between the composite power supply station 10 and the electric vehicle 50. Specifically, wireless communication by Wi-Fi or the like, wired communication by PLC (Power Line Communication), and the like can be mentioned. In the former case, the electric vehicle 50 and the composite power supply stand 10 require wireless LAN devices that support WiFi. In the latter case, it is assumed that communication is performed using the power cable 60 that connects the in-vehicle battery 50 and the composite power supply stand 10, and the electric vehicle 50 and the composite power supply stand 10 are provided with a PLC modem. In addition, as a specific example of the authentication data acquisition means 114, the information display means 40 described below is a touch panel within the reach of the user's hand, from the touch panel, or from an input means provided separately from the information display means 40 Input authentication data. In the former case, the information display means 40 also serves as the authentication data acquisition means 114. When the above-described authentication communication means, touch panel, or the like is used, the ID or password that is communicated or input is authentication data. As another specific example of the authentication data acquisition means 114, a camera is installed in the composite power supply stand 10, the car number of the electric vehicle 50 is photographed by the camera, and the car number is recognized by image processing. . In that case, the car number becomes the authentication data.

<Information display means>
The information display means 40 displays an appropriate advertisement or the like in normal times, and displays disaster related information provided from the server 30 in an emergency. More specifically, digital signage can be suitably used as the information display means 40. The display information at the normal time may be advertisement data transmitted from the server 30 to the composite power supply station 10, or if the information display means 40 is provided with input means, it may be advertisement data input from the input means. Good. The data displayed on the information display means 40 in the event of an emergency includes the situation of the disaster that caused the commercial power source PS to be unavailable, the evacuation site near the power supply station 10 or the base station 110, the power supply station 10 or the base station Information on the distribution of relief supplies in the vicinity of 110 and the restoration of public facilities damaged by the disaster. The public facilities include those having a public character such as schools, hospitals, roads, ports, bridges, railroads, and bus routes in addition to lifelines such as electricity, gas, water, and telephones. These pieces of information are appropriately updated and provided as new information obtained sequentially by the administrator of the server 30.

<Ad hoc communication means>
The ad hoc communication means 118, for example, when the base station 110 and the mobile communication control station (not shown) are disconnected due to a disaster and the combined power supply station 10 (invalid base station) that cannot access the server 30 occurs, It is a communication means for forming an ad hoc network with the composite power supply station 10 and communicating with each other. As shown in FIG. 2, even if a composite power supply station 10 becomes an invalid base station, if another composite power supply station 10 (effective base station) that can communicate with the server 30 is within the communication area of the invalid base station, The effective base station acquires disaster-related information from the server 30, and transmits the disaster-related information to the invalid base station through an ad hoc network. If necessary, disaster-related information is transmitted from an effective base station to a target invalid base station via a plurality of invalid base stations. Thereby, even the invalid base station can display the information from the server 30 on the information display means 40. The ad hoc communication means 118 can also be used as the authentication data acquisition means 114.

<Stand control means>
The stand control means 120 controls the cooperation of the above-described components of the composite power supply stand 10 in an integrated manner.

<Others>
Further, the composite power supply stand 10 is provided with a connector 122 to which the power cable 60 is connected. Further, an identification code (not shown) for specifying the stand 10 is displayed on the composite power supply stand 10. This identification code is transmitted to the server 30 via the terminal 20 so that the server 30 recognizes from which power supply station 10 power is supplied. In this example, a QR code (registered trademark of DENSO WAVE INCORPORATED) is displayed at an easy-to-see position on the power supply stand 10 as an identification code. Of course, other recognition codes may be used as long as information specifying the power supply station 10 can be displayed.

{Terminal}
The terminal 20 (FIG. 1), which is owned by the user and transmits user input information and the like for making a power supply request to the power supply station 10, is received from the server 30, and information such as a system usage fee is received from the server 30. . As user input information, a user-specific ID and password are typically used. Such a terminal 20 is provided with user input information input means (not shown), terminal side communication means (not shown) for communicating with the server 30, and identification code reading means (camera: not shown). . In this example, a camera-equipped mobile phone is used as the terminal 20, information is transmitted to the server 30 by accessing the mobile site via the Internet, and information is received from the server 30 by e-mail. Done.

{server}
The server 30 is a device that controls the overall composite power supply system by communicating with each of the composite power supply station 10 and the terminal 20, and as shown in FIG. 5, a server-side communication means 31, a storage means 32, and user authentication Means 33, charge calculation means 35, power supply control means 36, and system control means 37 are provided.

<Server side communication means>
The server-side communication means 31 transmits / receives necessary information to / from the power supply station 10 via the mobile phone network and to the terminal 20 via the Internet. Examples of the communication network used by the server side communication means 31 include a wireless communication network such as a cellular phone network and a wired communication network such as an optical fiber.

<Storage means>
The storage means 32 stores user master information, fee information, and stand information. The user master information includes each user's ID, password, personal information (name, address, e-mail address, telephone number, etc.), and vehicle information of the electric vehicle 50 (car manufacturer, vehicle type, year, etc.). The fee information includes a unit price for each fee system. The charge system includes electric menus such as electric power from solar power generation and late-night electric power, and a unit price corresponding to the electric menu selected by the user is applied when calculating the usage fee. The stand information is information for specifying the composite power supply station 10 to be used for charging. Specifically, the stand information is data that can specify which composite power supply station 10 in which parking lot.

<User authentication means>
The user authentication unit 33 authenticates the user by referring to the user input information transmitted from the terminal 20 with the user master information read from the storage unit 32. With this user authentication, only authorized users are permitted to use the power supply system 1.

<Price calculation means>
The charge calculating means 35 calculates the use charge of the power supply system 1 based on the amount of power transmitted from the composite power supply stand 10 and the charge information read from the storage means 32. More specifically, for example, the electricity charge used is calculated from the amount of power and the unit price of the charge system selected by the user, and the system usage charge is added to obtain the system usage charge.

<Power supply control means>
The power supply control means 36 specifies the composite power supply station 10 to be used for charging, and instructs the composite power supply station 10 to supply power to the stand 10 in response to a request for power supply via the terminal 20. Or stop power supply. The composite power supply station 10 is specified by referring to the QR code data read by the terminal 20 with the stand information of the server 30.

<System control means>
The system control unit 37 controls each component unit of the server 30 described above in cooperation. The system control means 37 includes control of a user interface when the terminal 20 accesses the server 30. In this example, when the user accesses the server 30 using the terminal 20, the charging time (1 hour, 8 hours, full charge, etc.) can be selected.

{Configuration of electric vehicle side}
On the other hand, on the electric vehicle side, a charger 210, a vehicle-mounted battery 220, vehicle-side communication means 230, and vehicle-side control means 240 are provided. The charger 210 normally converts the alternating current supplied from the composite power supply stand 10 into a direct current by an AC / DC converter that incorporates the alternating current, and charges the in-vehicle battery 220. In an emergency, the charger 210 converts direct current from the in-vehicle battery 220 into alternating current and transmits the alternating current to the composite power supply station 10. The electric vehicle 50 and the composite power supply stand 10 are connected by a power cable 60. One end of the cable is connected to the connector 122 of the composite power supply stand 10, and the other end is connected to the charger 210. If necessary, the power cable 60 is changed to another specification according to normal charging and emergency power transmission. In this example, vehicle-side communication means 230 is provided. This is a communication means for transmitting authentication data for performing emergency authentication from the electric vehicle side to the composite power supply station 10 side. Here, wireless communication is used for this communication means. The operations of the charger 210 and the vehicle-side communication means 230 are controlled by the vehicle-side control means 240.

[System procedure]
Next, a processing procedure for operating the above power feeding system will be described based on the flowchart of FIG. Here, the processing procedure of the emergency system will be described first, and the processing procedure of the normal system will be described later. In the following description, FIGS. 1 to 5 are referred to as necessary for each component of the system.

  First, when a power failure of the commercial power source PS occurs due to a disaster, the user terminal 20 is contacted and a dispatch request to the composite power supply station 10 is made. The user who makes this contact is a person who has previously agreed to be dispatched to a predetermined complex power supply station 10 (for example, the nearest station) in response to the dispatch request when the use contract of the composite power supply station 10 is concluded. This dispatch request is made before the capacity of the backup battery 108 of the radio base station is exhausted. Here, if the composite power supply station 10 and the electric vehicle 50 are already connected at the time of a power failure of the commercial power source PS, a request for permission of power supply from the electric vehicle 50 may be made to the user terminal 20.

  The user who has received the request for dispatch dispatches to the composite power supply stand 10 and connects the in-vehicle battery 220 of the electric vehicle 50 and the connector 122 of the stand with the power cable 60.

  Next, the authentication data (ID etc.) sent from the vehicle side communication means 230 is acquired by the authentication data acquisition means 114 (step S1).

  Subsequently, the emergency authentication unit 112 determines whether or not the user is authenticated based on the acquired authentication data (step S2). If it is not authenticated in this determination, re-authentication is tried several times, and if it is not authenticated yet, it is determined that the user and the electric vehicle 50 are unregistered vehicles of the unregistered user, and the combined power supply station 10 There is no power transmission to

  On the other hand, if the user is authenticated, the commercial power source PS is cut off by the switch means 102, and the power source is switched so that the electric power from the in-vehicle battery 220 can be supplied to the composite power supply stand 10 side (step S3). By switching the power source, the backup battery 108 is charged by the power of the in-vehicle battery 220 and the composite power supply stand 10 is driven.

  Next, it is confirmed whether or not the server 30 can be accessed (step S4). If the server 30 can be accessed, a request for predetermined disaster-related information is made to the server 30 (step S5).

  Upon receiving the request, the server 30 transmits a predetermined disaster-related information signal to the composite power supply station 10. This signal is received by the stand 10 (step S6) and displayed by the information display means 40. (Step S7).

  On the other hand, when the server 30 cannot be accessed, an ad hoc network is formed between the ad hoc communication means 118 and another composite power supply station 10 in proximity (step S8). If the other combined power supply station 10 can access the server 30, the other combined power supply station 10 first obtains a disaster-related information signal from the server 30, and then transmits the signal to the server 30 via the ad hoc network. It can be transmitted to the complex power supply station 10 that cannot be accessed.

  When the commercial power source PS recovers, the power supply of the composite power supply stand 10 is switched again from the in-vehicle battery 220 to the commercial power source PS by the switch means 102, and the backup battery 108 and the in-vehicle battery 220 are charged by the commercial power source PS. Do.

  On the other hand, normally, the user takes a QR code of the power supply station 10 used by the camera of the terminal 20, and accesses the mobile site of the server 30 via the Internet.

  Next, the terminal 20 transmits its own ID and password to the server 30, and user authentication means 33 performs user authentication and identification of the composite power supply station 10.

  When the user authentication and the specification of the power supply stand 10 are completed, the server 30 transmits a power supply preparation command to the composite power supply stand 10, and the composite power supply stand 10 that has received the command is in a ready state. In this state, the electric vehicle 50 and the composite power supply stand 10 are connected with the power cable 60.

  The user makes a power supply start request from the power supply menu on the site with the terminal 20 connected to the server 30. When the server 30 receives the power supply start request, the user transmits a power supply start command to the composite power supply stand 10.

  The composite power supply station 10 starts power supply to the in-vehicle battery 220 of the electric vehicle 50 in response to a request from the server 30. Simultaneously with the start of power supply, the power supply measuring unit 104 starts measuring the amount of power at the composite power supply station 10.

  Next, the composite power supply station 10 determines whether or not the charging of the in-vehicle battery 220 is completed. Normally, the electric vehicle 50 has a function of cutting off power reception from the electric vehicle side when charging of the in-vehicle battery 220 is completed, and blocking electric power reception from the electric vehicle side (measurement by the electric energy measuring means 104). The composite power supply stand 10 can end the charging by turning off the switch means 102, for example.

  When power supply to the in-vehicle battery 220 is stopped and charging is completed, a power supply completion notification is transmitted to the server 30 via the base station 110 by the stand control means 120 of the power supply station 10. Further, the power consumption until the end of charging is transmitted from the power supply station 10 to the server 30, and the server 30 receives this power consumption.

  The server 30 calculates the usage fee by the fee calculation unit 35 based on the received power consumption and the unit price of the fee information read from the storage unit 32.

  At this point, since the process in the power supply station 10 has been completed, the user can remove the power cable 60 from the power supply station 10.

  On the other hand, the server 30 sends a charge completion notice to the user's terminal 20 by e-mail together with the calculated usage fee. By checking the e-mail of the terminal 20, the user can know how much the usage fee was charged at what charge and at what charge, in addition to the completion of the charge.

[Function and effect]
According to the above power feeding system, the following operational effects can be achieved.

  By using the composite power supply stand 10 that combines the function of a public mobile base station and the power supply stand of the in-vehicle battery 220, the backup battery 108 of the base station 110 is depleted even when the commercial power source PS is not available. Before, the in-vehicle battery 220 can be used as a power source for the composite power supply stand 10. Therefore, the usage time of the backup battery 108 and the operating time of the base station 110 can be extended, and a certain communication until power recovery can be ensured.

  By combining the information display means 40 with the composite power supply station 10, disaster related information and the like can be displayed on the information display means 40. Thereby, it is possible to contribute to accurate information distribution in the stricken area including the place where the composite power supply station 10 is installed.

  By providing the composite power supply station 10 with an ad hoc communication function, even if communication between some of the composite power supply stations 10 and the server 30 is interrupted, an ad hoc network is formed by these composite power supply stations 10, The disaster-related information acquired by any of the composite power supply stations 10 that can access 30 can be transmitted to the composite power supply station 10 that cannot access the server 30. Therefore, disaster-related information can be displayed on the information display means even in the composite power supply station 10 that cannot access the server 30.

  By combining the backup battery 108 with the capacity detection means and the battery mode switching means, the battery capacity necessary for authentication by the emergency authentication means 112 can be secured while operating the radio base station as long as possible. Therefore, if the in-vehicle battery 220 is connected to the composite power supply station 10 in which the backup battery 108 is set to the standby mode, the operation of the radio base station can be immediately restored.

[Modification]
In the above embodiment, for users who have supplied power from the in-vehicle battery 220 to the composite power supply station 10 in an emergency, discounts on usage charges of the power supply station 10 and points that can be used for purchasing various products May be performed. As a result, it is possible to motivate the user to accept the emergency dispatch request. This usage fee discount or point grant can be realized by grasping on the server 30 side that the authenticated user has used the composite power supply station 10 in an emergency and managing it as one of the user master information .

  It goes without saying that the present invention is not limited to the above-described embodiment, and can be implemented in various forms without departing from the gist of the present invention. For example, in the above-described embodiment, the vehicle power supply is configured to be supplied from the composite power supply stand to the in-vehicle battery in response to a power supply request from the terminal via the server, but a power supply switch and a fee settlement machine are provided in the composite power supply stand itself. The present invention can also be applied to a power supply station that starts charging when the user presses this switch and charges the usage fee on the spot by using a fee adjusting machine upon completion of charging.

  The composite power supply system of the present invention can be suitably used for operation as a power supply station for charging an in-vehicle battery of an electric vehicle and a wireless base station for public wireless communication.

1 Combined power supply system
10 Combined power supply stand
10G Underground part 10F Large diameter part 10N Small diameter part 10A Antenna
10P Power / Communication board 10CS Power supply stand 10BS Wireless base station
102 Switch means 104 Electric energy measuring means 106
AC / DC converter
108 Backup battery 110 Base station 112 Emergency authentication means
114 Authentication data acquisition means 118 Ad hoc communication means
120 Stand control means 122 Connector
20 terminal
30 servers
31 Server side communication means 32 Storage means 33 User authentication means
35 Charge calculation means 36 Power supply control means 37 System control means
40 Information display means
50 electric vehicle
60 Power cable
210 Battery charger 220 Car battery 230 Vehicle-side communication means
240 Vehicle-side control means

Claims (4)

A power supply stand for supplying power to the vehicle-mounted battery of the electric vehicle;
A radio base station attached to this power supply stand;
During normal times, a commercial power supply that supplies power to the power supply station and the wireless base station,
In an emergency in which this commercial power source is not available, emergency authentication means for authenticating the electric vehicle connected to the power supply stand,
A combined power supply system, comprising: a switching unit that switches a power source of the power supply station and the wireless base station to a vehicle-mounted battery of the electric vehicle authenticated by the emergency authentication unit in the emergency. Information display means provided in at least one of the power supply station and the radio base station;
The composite power feeding system according to claim 1, further comprising a server that communicates information signals to be displayed on the information display means to the radio base station. If the wireless base station cannot communicate with the server, the wireless base station comprises ad hoc communication means for forming an ad hoc network with another wireless base station having a similar configuration,
The ad hoc communication means in the radio base station that cannot communicate with the server obtains the signal of the information displayed on the information display means and acquired by the radio base station capable of communicating with the server via the ad hoc network. The composite power supply system according to claim 2, wherein:   The information displayed on the information display means is the situation of the disaster that caused the commercial power supply to be unavailable, the evacuation site in the vicinity of the power supply station or the radio base station, the relief in the vicinity of the power supply station or the radio base station The composite power supply system according to claim 2 or 3, wherein the combined power supply system is one or more of information relating to distribution of goods and restoration of a public facility damaged due to the disaster.

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