JP2012191814A - Public power supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a public power supply system where power can be used conveniently and safely in a public place.SOLUTION: A center server 31 and a communication terminal 32 making a power supply request are connected to an electric outlet 11 through Internet 33 while the electric outlet 11 to which power is supplied from a power distribution line 13 is installed beforehand in a predetermined public place. When a user makes a search request for the installation location of the electric outlet 11 from the communication terminal 32 to the center server 31 through the Internet 33, the center server 31 transmits information on the installation location of the electric outlet 11 to the communication terminal 32. When the power supply request to the electric outlet 11 is output, the center server 31 outputs a current supply command to an electric current control part 14 through a communication network (Internet 29 and telephone network 30), and the electric current control part 14 permits conduction of the electric current supplied to the electric outlet 11.

Description

  The present invention relates to a public power supply system in which an outlet for supplying electric power from a power transmission line, a distribution line, or an extension is installed in a predetermined public place in advance, and electric power can be used in the public place.

  In general, a consumer receives power from a power transmission company and a power transmission line and a distribution line in advance by a contract with a power supply company, and supplies power to the extension line of the consumer to supply electric power from an outlet. ing. The outlet will be installed indoors or on the site of the customer's building.

  Normally, the power supplied from the power supply company to the outlet is supplied from the extension via the distribution line, but may be supplied directly from the transmission line or the distribution line. The term “outlet to which power from the power supply is supplied” includes the case of an outlet supplied directly from a transmission line or a distribution line, or the case of an outlet supplied from an extension.

  Thus, a consumer uses the electrical equipment by inserting plugs of various electrical equipment into outlets to which power from the distribution line is supplied. As described above, power is normally used through an outlet in a consumer.

  On the other hand, when contract power is determined by a contract with a power supply company, a breaker having a current limit value corresponding to the contract power is installed in the consumer, and the maximum current that can be used in the consumer is the current limit determined by the breaker. Suppressed within the value.

  Here, a home server is installed in the consumer, a control signal is transmitted from the push-type telephone on the go to the home server, and the power supply state to the electrical equipment connected to the plurality of outlets of the table tap at home is confirmed. In some cases, the power supply state can be switched if necessary (see, for example, Patent Document 1).

JP 2002-44882 A

  However, although the thing of patent document 1 can confirm the energization state of several outlets from remote places, such as going out, and can control energization on / off, the outlet used is a consumer's own outlet. It is not possible to use electrical equipment on the go. If you want to use electrical equipment while you are away from home, you can only get power by borrowing the outlets of customers (others) near your destination.

  Therefore, if an outlet for supplying power from a distribution line or an extension line is installed in a predetermined public place in advance and the outlet can be used, the electric power can be used in a public place that is not in the consumer.

  Further, the maximum current that can be used in the consumer is determined by the current limit value determined by the breaker of the consumer, but it is necessary to provide a current limit value even in the case of an outlet installed in a predetermined public place. This is in order not to adversely affect other customers and the upper system of the distribution line to which the outlet is connected.

  Therefore, a current limit value is also set for the current supplied to the outlet. In that case, a breaker is installed there for the outlet installed in a predetermined public place, and the current determined by the breaker. If the limit value is used, the current limit value is fixed. When changing the current limit value, the breaker must be replaced. In the outlet installed in a given public place, the current limit value can be easily changed according to the usage situation so that it can flexibly cope with the case where the power consumption is higher than originally assumed. Is desired.

  Moreover, even if an outlet for supplying power from a distribution line or extension is installed in a predetermined public place in advance, if the location of the outlet is not known to the user, the outlet can be effectively used in the public place. Absent.

  An object of the present invention is to provide a public power supply system that can use power safely and effectively in public places.

  The public power supply system according to the invention of claim 1 is installed in a predetermined public place and supplied with power from a distribution line, and connected between the outlet and the distribution line and supplied to the outlet. A current control unit that controls whether or not a current is passed, a communication terminal that requests a search for an installation location of the outlet and a power supply to the outlet, and the communication terminal is connected to the communication terminal via the Internet. When there is a search request for the installation location of the outlet from the communication terminal connected by a user via a communication network, information on the installation location of the outlet is transmitted to the communication terminal and from the communication terminal to the outlet And a center server that outputs a current supply command to the current control unit when a power supply request is made.

  The public power supply system according to the invention of claim 2 is provided with a user identification information reader for reading user identification information for identifying a user connected to the current control unit in the vicinity of the outlet, 2. The public power supply according to claim 1, wherein the server outputs a current supply command to the current control unit when the user identification information read by the user identification information reader is registered as a user. system.

  According to a third aspect of the present invention, there is provided a public power supply system that is installed in a predetermined public place and is supplied with power from a distribution line, and is connected between the outlet and the distribution line and is supplied to the outlet. A current control unit that controls whether or not current can be applied, a communication terminal that requests a search for an installation location of the outlet, and a user specification for specifying a user that is installed in the vicinity of the outlet and connected to the current control unit A user-specific information reader for reading information and the communication terminal are connected via the Internet, and the current control unit is connected via a communication network, and the user requests to search for the location of the outlet from the communication terminal. When there is, the information on the location of the outlet is transmitted to the communication terminal and the user identification information reader reads the user identification information. And a center server that inputs the user specifying information from the current control unit and outputs a current supply command to the current control unit when the user specifying information is registered as a user. Public power system to do.

  According to a fourth aspect of the present invention, there is provided a public power supply system according to the second or third aspect, wherein the user identification information reader is a non-contact IC reader.

  The public power supply system according to a fifth aspect of the present invention is the public power supply system according to any one of the first to fourth aspects, wherein the center server uses the outlet for each installation location in addition to the information on the installation location of the outlet. The detailed information is provided.

  The public power supply system according to a sixth aspect of the present invention is the public power system according to any one of the first to fifth aspects, wherein the center server determines the usage time, power consumption, and usage fee of the outlet for each user. It is characterized by counting and storing.

  According to a seventh aspect of the present invention, there is provided the public power supply system according to the sixth aspect, wherein the center server multiplies the usage fee calculated by multiplying the usage fee for each installation location or the usage fee for the usage fee for each installation location. The usage charges calculated in this way are totalized and stored.

  The public power supply system according to the invention of claim 8 is the public power supply system according to claim 6 or 7, wherein the center server makes an inquiry request for the usage time, power consumption, usage charge of the outlet from the communication terminal by the user. If there is, the communication terminal is provided with information on the usage time, power consumption, and usage charge of the outlets totaled for each user.

  A public power supply system according to a ninth aspect of the present invention is the public power supply system according to any one of the first to eighth aspects, wherein when the current control unit detects a leakage of a subordinate system of the distribution line, The current is cut off.

  The public power supply system according to a tenth aspect of the present invention is the public power supply system according to any one of the first to ninth aspects, wherein the current control unit has a supply current to the outlet exceeding a predetermined overcurrent set value. In some cases, the current from the distribution line is cut off.

  According to an eleventh aspect of the present invention, in the public power supply system according to the tenth aspect, the center server is capable of setting and changing the overcurrent set value of the current control unit.

  A public power supply system according to a twelfth aspect of the present invention is the public power supply system according to any one of the first to eleventh aspects, wherein the current control unit stores a use time limit value for setting a limit value of the use time of the outlet. And a timer for turning off the current supplied to the outlet when the usage time of the outlet reaches a limit value set in the usage time limit value storage unit, The timer count start command is output together with the outlet current supply command.

  The public power supply system according to a thirteenth aspect of the present invention is the public power supply system according to any one of the first to eleventh aspects, wherein the center server sets a use time limit value storage unit for setting a limit value of the use time of the outlet. And a timer for turning off the current supplied to the outlet when the usage time of the outlet reaches a limit value set in the usage time limit value storage unit, And a timer count start command is output.

  A public power supply system according to a fourteenth aspect of the present invention is the public power supply system according to any one of the first to thirteenth aspects, wherein the current control unit supplies an alternating current supplied from the distribution line to the outlet, and The AC current is converted to DC, and the converted DC current is supplied to a DC outlet.

  A public power supply system according to a fifteenth aspect of the present invention is the public power supply system according to any one of the first to fourteenth aspects, wherein the communication network connecting the current control unit and the center server is the Internet or a protocol other than the Internet protocol. It is characterized by being a communication network.

  According to the first aspect of the present invention, an outlet is installed in a predetermined public place in advance, and when the center server requests the outlet installation location from the communication terminal by the user, Since the information is transmitted to the communication terminal, the user can easily grasp the installation location of the outlet and the convenience is improved. The center server also outputs a current supply command to the current control unit when the user requests power supply from the communication terminal to the outlet, so that the user can use power even in public places that are not in the consumer. Is possible.

  According to the second and third aspects of the invention, in addition to the effect of the first aspect of the invention, the center server has the user identification information read by the user identification information reader provided near the outlet as a user. When registered, a current supply command is output to the current control unit, so that the user can use power not only in the communication terminal but also in a public place that is not in the consumer, according to the user identification information. .

  According to the invention of claim 4, in addition to the effect of the invention of claim 2 or 3, when the user holds the non-contact IC over the non-contact IC reader provided near the outlet, the center server When a non-contact IC read by the IC reader is registered as a user, a current supply command is output to the current control unit, so that the user can use the non-contact IC and power in a public place that is not in the consumer. Can be used.

  According to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, the center server provides detailed information on the use of the outlet for each installation location in addition to the information on the installation location of the outlet. Therefore, the convenience for the user to use the outlet is further improved.

  According to the invention of claim 6, in addition to the effect of the invention of any one of claims 1 to 5, the center server aggregates the usage time, power consumption, and usage fee of the outlet for each user. Since it is memorized, it is possible to save the usage time, power consumption, and accounting total for each user.

  According to the invention of claim 7, in addition to the effect of the invention of claim 6, the usage fee calculated by multiplying the usage fee by the installation site fee or the usage fee calculated by multiplying the usage fee by the installation site fee Since charges are tabulated and stored, it is possible to handle different charges depending on the installation location.

  According to the invention of claim 8, in addition to the effect of the invention of claim 6 or 7, when the center server makes an inquiry request for the usage time of the outlet, the amount of power used, and the usage fee from the communication terminal by the user. Provides the communication terminal with the information on the power consumption charges collected for each user, so that the user can easily grasp the information on the power consumption charges.

  According to the invention of claim 9, in addition to the effect of the invention of any one of claims 1 to 8, the current control unit cuts off the current from the distribution line when the leakage of the subordinate system of the distribution line is detected. Therefore, it is possible to supply power to the outlet safely.

  According to the invention of claim 10, in addition to the effect of the invention of any one of claims 1 to 9, the current control unit is configured such that when the supply current to the outlet exceeds a predetermined overcurrent set value. Since the current from the distribution line is cut off, it is possible to prevent adverse effects on other consumers and higher-order systems of the distribution line to which the outlet is connected, and it is possible to supply power to the outlet safely.

  According to the invention of claim 11, in addition to the effect of the invention of claim 10, the center server can change the overcurrent set value of the current control unit, so that the capacity of the outlet installed in a predetermined public place is Can easily cope with changes.

  According to the invention of claim 12 and claim 13, in addition to the effect of the invention of any one of claims 1 to 11, the current supplied to the outlet when the usage time of the outlet reaches the limit value. Thus, even if the outlet user accidentally leaves the electrical device connected for a long time, it can be automatically turned off and safety is improved.

  According to the invention of claim 14, in addition to the effect of the invention of any one of claims 1 to 13, the alternating current is converted to direct current, and the converted direct current is supplied to the direct current outlet. Can also supply power.

  According to the invention of claim 15, in addition to the effects of the invention of any one of claims 1 to 14, the communication network connecting the current control unit and the center server is a communication of the Internet or a protocol other than the Internet protocol. Since the network is used, communication can be performed by switching to an appropriate one depending on the size of communication data between the current control unit and the center server.

The block diagram of the public power supply system which concerns on embodiment of this invention. The flowchart which shows operation | movement of the installation location information provision part of the center server in embodiment of this invention. Explanatory drawing of operation of the electric power supply request | requirement by the communication terminal in the installation place of the outlet socket in the embodiment of this invention, or a DC outlet. The flowchart which shows operation | movement of the public power supply system which concerns on embodiment of this invention. The block diagram of the public power supply system which concerns on other embodiment of this invention. Explanatory drawing of operation of the electric power supply request | requirement by non-contact IC54 in the installation place of the outlet socket 11 in the other embodiment of this invention, or the DC outlet socket 12 The flowchart which shows operation | movement of the public power supply system which concerns on other embodiment of this invention.

  Embodiments of the present invention will be described below. FIG. 1 is a configuration diagram of a public power supply system according to an embodiment of the present invention. An outlet 11 for supplying AC power in advance is installed in a predetermined public place. A DC outlet 12 is also installed as necessary. FIG. 1 shows a case where the DC outlet 12 is a USB terminal for connecting a terminal device of a mobile device such as a personal computer or a mobile phone. The predetermined public places are, for example, parks, public facilities, convenience stores, and the like, and are installed as a power supply corner or a power supply stand.

  Power is supplied to the outlet 11 and the DC outlet 12 from the distribution line 13 via the current control unit 14. The current control unit 14 controls whether or not the current supplied to the outlet 11 and the DC outlet 12 is energized. AC power is supplied to the outlet 11 from the distribution line 13 by the electric wire 15a, and AC power is supplied from the distribution line 13 to the DC outlet 12 by being converted to DC power by the AC / DC converter 19 by the electric wire 15b. .

  The electric wire 15a of the outlet 11 is provided with an electric leakage detector 16a for detecting electric leakage of the electric wire 15a, a current detector 17a for detecting electric current flowing through the electric wire 15a, and a voltage detector 41a for detecting the voltage of the electric wire 15a. A switch 18a for turning on and off the current Ia flowing through 15a is provided. Similarly, the electric wire 15b of the DC outlet 12 includes an electric leakage detector 16b for detecting electric leakage of the electric wire 15b, a current detector 17b for detecting electric current flowing through the electric wire 15b, a voltage detector 41b for detecting the voltage of the electric wire 15b, and electric wires. A switch 18b for turning on and off the current Ib flowing through 15b is provided, and further, an AC / DC converter 19 that converts AC power input through the switch 18b into DC and outputs it to the DC outlet 12, A detector 16c is provided. The leakage detector 16c detects a leakage in the DC circuit. Further, the switch 18 b may be provided between the DC outlet 12 and the AC / DC converter 19. The currents Ia and Ib detected by the current detectors 17a and 17b and the voltages Va and Vb detected by the voltage detectors 41a and 41b are input and stored in the measured value storage unit 20, respectively.

  Leakage detectors 16a and 16b are for detecting a leakage of a subordinate system of the distribution line 13, and from the electric wires 15a and 15b and the outlet 11 and the DC outlet 12 that are power supply circuits to the outlet 11 and the DC outlet 12. Detect leakage of the previous circuit. When the leakage is detected in the electric wire 15a of the outlet 11 or the electric wire 15b of the DC outlet 12, the controller 21 is notified of the occurrence of the electric leakage. When the controller 21 receives the notification of the occurrence of the leakage from the leakage detectors 16a and 16b, the controller 21 opens the switches 18a and 18b to stop the supply of power to the outlet 11 and the DC outlet 12, and the leakage detection history storage unit 22 stores information such as the date and time of occurrence of electric leakage as a history.

  The control unit 21 controls energization of current to the outlet 11 and the DC outlet 12. When energization is permitted, the switches 18a and 18b are closed, and when energization is not permitted, the switches 18a and 18b are opened. In the overcurrent set value storage unit 23, limit values of the currents Ia and Ib supplied to the outlet 11 and the DC outlet 12 are stored in advance as overcurrent set values.

  The control unit 21 inputs the currents Ia and Ib stored in the measured value storage unit 20, and the currents Ia and Ib supplied to the outlet 11 and the DC outlet 12 are stored in the overcurrent set value storage unit 23. Whether or not the set value is exceeded is monitored. When the overcurrent set value is exceeded, the switches 18a and 18b are opened to cut off the currents Ia and Ib from the distribution line 13, and the overcurrent detection history storage unit 24 Information such as the date and time of overcurrent detection and an overcurrent value is stored as a history.

  As a result, the currents Ia and Ib supplied to the outlet 11 and the DC outlet 12 are prevented from being overcurrent, and other consumers and upper systems of the distribution line to which the outlet is connected are prevented from being adversely affected. At the same time, power can be safely supplied to the outlet 11 and the DC outlet 12.

  Further, the current control unit 14 is provided with a use time limit value storage unit 25 for setting a use time limit value of the outlet 11 or the DC outlet 12. When the usage time of the outlet 11 or the DC outlet 12 reaches the usage time limit value set in the usage time limit value storage unit 25, the control unit 21 opens the switches 18a and 18b and stops the supply of current. .

  That is, the control unit 21 has a timer 26. When the use of the outlet 11 or the DC outlet 12 is started, the control unit 21 starts the timer 26 and counts the usage time of the outlet 11 or the DC outlet 12. Then, when the usage time counted by the timer 26 reaches the limit value, the control unit 21 opens the switches 18a and 18b and turns off the current supplied to the outlet 11 and the DC outlet 12. As a result, the outlet user can automatically turn off the electric device without stopping the use of the outlet 11 or the DC outlet 12, even if the electric device is accidentally left connected for a long time. improves.

  Further, the control unit 21 calculates the amount of power used at the outlet 11 and the DC outlet 12 based on the currents Ia and Ib and the voltages Va and Vb stored in the measurement storage unit 20 and stores them in the used power storage unit 42. At the same time, the usage time of the outlet 11 and the DC outlet 12 is calculated and stored in the usage time storage unit 43. The usage time is obtained by calculating the time during which the switches 18a and 18b are closed.

  The current control unit 14 includes a communication port 27 and a converter 28, and the communication port 27 and the converter 28 are connected to the outlet 11 and the DC outlet 12 transmitted from the center server 31 via the Internet 29 and the telephone network 30. A power supply request is received and output to the control unit 21, and the usage status of the outlet 11 and the DC outlet 12, the amount of power used and the usage time of the user are transmitted via the Internet 29 and the telephone network 30 to the center server 31. Send to. The usage status of the outlet 11 and the DC outlet 12 is the number of outlets 11 and DC outlets 12 currently used by the user.

  The communication network connecting the current control unit 14 and the center server 31 is the Internet 29 or a telephone network 30 which is a communication network of a protocol other than the Internet protocol. The Internet 29 is transmitted by the Internet protocol, and the telephone network 30 is transmitted by a protocol other than the Internet protocol. For example, it is a mobile phone or PHS communication network, such as SMS. In the case of transmission via the telephone network 30, the converter 28 converts the protocol into an Internet protocol and outputs it to the communication port 27. Switching between the Internet 29 and the telephone network 30 is switched to an appropriate one depending on the size of communication data between the current control unit 14 and the center server 31.

  The center server 31 is connected to the communication terminal 32 via the Internet 33. The communication terminal 32 is, for example, a mobile phone 34 or a personal computer 35. When the outlet 11 or the DC outlet 12 is used, the outlet 11 or the DC outlet 12 is installed from the communication terminal 32 to the center server 31 via the Internet 33. A search request for a location, a power supply request, and an inquiry request such as the amount of power used, time used, and usage charge are made.

  The center server 31 has installation location information 44 indicating the locations where the outlets 11 and DC outlets 12 are installed, detailed usage information 45 indicating the usage status of the outlets 11 and DC outlets 12 at each installation location, and is used for each user. Electric power consumption information 46 that totals electric energy, usage time information 47 that totals usage time for each user, charge information 53 for each installation location that is predetermined for each installation location of the outlet 11 and DC outlet 12, and for each user The usage fee information 48 obtained by collecting the usage fees is stored in the storage device as information. The center server 31 stores the usage fee for each user as usage fee information 48 by multiplying the fee for each installation location stored in the fee information 53 for each installation location by the usage time or power consumption of the user.

  The center server 31 includes an installation location information providing unit 49 that provides the communication terminal 32 with installation location information 44 and usage detail information 45 when there is a search request for the installation location of the outlet 11 or the DC outlet 12. An outlet identification unit 36 for determining the identification mark of the outlet 11 or the DC outlet 12 installed in a public place, and the current control unit 14 when a user requests power supply to the outlet 11 or the DC outlet 12 A current supply command output unit 37 that outputs a current supply command, an overcurrent set value setting unit 38 for setting an overcurrent set value in the overcurrent set value storage unit 23 of the current control unit 14, and an outlet 11 from the user If there is an inquiry request for user information (power consumption, usage time, usage fee) of the DC outlet 12, the power usage information 46, usage time Distribution 47 has a user information providing unit 50 to provide the use fee information 48 to the communication terminal 32.

  The installation location information providing unit 49 of the center server 31 receives the installation location information 44 of the outlet 11 or the DC outlet 12 or the installation when the user requests the installation location of the outlet 11 or the DC outlet 12 from the communication terminal 32. The detailed usage information 45 of the outlet 11 and the DC outlet 12 for each place is transmitted to the communication terminal 32. For example, the installation location information 44 provides the installation location closest to the position of the communication terminal 32, and the usage detail information 45 provides the availability information of the outlet 11 and the DC outlet 12.

  The outlet identifying unit 36 of the center server 31 identifies the outlet 11 and the DC outlet 12 to be supplied with current based on the identification mark transmitted from the communication terminal 32. Then, the current supply command output unit 37 determines whether it is a power supply request from the communication terminal 32 to the outlet 11 or the DC outlet 12 by the user, and when the user authentication is confirmed, the outlet identification unit A current supply command is output via the Internet 29 or the telephone network 30 to the current control unit 14 corresponding to the outlet 11 or the DC outlet 12 identified at 36.

  The overcurrent set value setting unit 38 of the center server 31 is connected to the Internet 29 or the telephone when the outlet 11 or the DC outlet 12 installed in a predetermined public place is newly installed or when the capacity is changed midway. The overcurrent set value is transmitted to the overcurrent set value storage unit 23 of the current control unit 14 via the network 30, and the overcurrent set value is set and changed. Thereby, even if it does not go to the installation place of the outlet 11 or the DC outlet 12, the overcurrent set value can be easily changed.

  Further, the user information providing unit 50 of the center server 31 receives the user's power usage information 46, the usage information when the user makes an inquiry about the user information (power usage, usage time, usage fee). Since the time information 47 and the usage fee information 48 are provided to the communication terminal 32, the user can easily grasp the information on his own electric energy consumption, usage time, and usage fee.

  FIG. 2 is a flowchart showing the operation of the installation location information providing unit 49 of the center server 31. The installation location information providing unit 49 is activated when a request for searching for the installation location of the outlet 11 or the DC outlet 12 is received from the communication terminal 32. First, the location search screen is activated (S 1) and transmitted to the communication terminal 32 via the Internet 33. The installation location information providing unit 49 waits for selection of a location condition from a person who intends to use the outlet, and when the person who intends to use the outlet selects a location condition (S2), the installation location list of the public power supply system is sent via the Internet 33. The data is transmitted to the communication terminal 32 and displayed on the communication terminal 32 (S3).

  The installation location information providing unit 49 waits for a location selection from the intended use person of the outlet, and when the planned use of the outlet selects the location (S4), the usage details of the outlet 11 and the DC outlet 12 at the installation location are detailed. Information is transmitted to the communication terminal 32 via the Internet 33 and displayed on the communication terminal 32 (S5). As the detailed usage information, the position of the installation location, the usage status including the vacant information, the usable current, and the like are displayed. As a result, the person who intends to use the outlet can easily determine which installation outlet is effective.

  When the public power system is searched by the installation location information providing unit 49 of the center server 31 in this way, the person who intends to use the outlet goes to the installation location where the outlet 11 or the DC outlet 12 is actually installed, and the outlet 11 Or a DC outlet 12 is used.

  FIG. 3 is an explanatory diagram of an operation of a power supply request by the communication terminal 32 at the place where the outlet 11 or the DC outlet 12 is installed. At the place where the outlet 11 or the DC outlet 12 is installed, an identification mark display unit 51 is provided in the vicinity of the outlet 11 or the DC outlet 12. The identification mark display unit 51 is formed with an identification mark 52 for identifying the outlet 11 or the DC outlet 12. FIG. 3 shows a case where the identification mark 52 is a QR code.

  When the user wants to use the outlet 11 or the DC outlet 12 at the installation location, the user reads the identification mark 52 by the communication terminal 32 and transmits it to the center server 31. The center server 31 inputs the identification mark 52 to the outlet identifying unit 36. The outlet identifying unit 36 identifies the outlet 11 and the DC outlet 12 to be supplied with current based on the information of the identification mark 52.

  Then, the current supply command output unit 37 of the center server 31 confirms whether or not there is user authentication in the power supply request from the communication terminal 32. A current supply command is output to the current control unit 14 corresponding to the outlet 11 or the DC outlet 12. As a result, power is supplied to the outlet 11 and the DC outlet 12.

  FIG. 4 is a flowchart showing the operation of the public power supply system according to the embodiment of the present invention. First, the user goes to the installation location of the outlet 11 or DC outlet 12 that he / she wants to use, and reads the identification mark 52 formed on the identification mark display section 51 of the installation location by the communication terminal 32 (S1). Then, the user inputs a login password (S2).

  The center server 31 identifies the installation location of the outlet 11 and the DC outlet 12 to be supplied with current based on the identification mark 52 (S3), and confirms whether there is authentication based on the login password (S4). If authentication cannot be confirmed, the process ends. On the other hand, when the authentication is confirmed, the center server 31 displays a use confirmation screen on the communication terminal 32 (S5), and confirms whether or not the user intends to use the outlet 11 or the DC outlet 12. Perform (S6). If there is no usage confirmation from the user, the process ends. If there is a usage confirmation, the center server 31 displays a usage agreement screen on the communication terminal 32 (S7), and the user agrees to the agreement. Whether or not (S8).

  When the user agrees to the terms, the center server 31 outputs a current supply command to the current control unit 14 (S9). When receiving the current supply command, the current control unit 14 starts energization (S10), activates the timer 26, and starts counting the timer 26 (S11). Thereby, the usage time of the outlet 11 or the DC outlet 12 is measured.

  The current control unit 14 determines whether or not leakage has occurred by the leakage detectors 16a and 16b (S12). If leakage occurs, the leakage detectors 16a and 16b open the switches 18a and 18b to open the outlet 11 or the DC outlet 12 The current leakage detection information is stored in the leakage detection history storage unit 22 (S13), and the user information (power consumption, usage time, usage fee) up to that time is totalized and stored. (S14), the process ends.

  If there is no leakage, the control unit 21 determines whether the supply current to the outlet 11 or the DC outlet 12 exceeds the overcurrent set value (S15). The unit 21 opens the switches 18a and 18b to cut off the current supply to the outlet 11 and the DC outlet 12, and stores the overcurrent detection information in the overcurrent detection history storage unit 24 (S16). User information (power consumption, usage time, usage fee) is tabulated and stored (S14), and the process ends.

  If the current is not exceeded, the use of the power supply is continued (S17), and the control unit 21 determines whether or not the use is finished (S18). If the use is finished, the user information up to that point (power consumption, use The time and usage charges are tabulated and stored (S14), and the process is terminated. When the use of the outlet 11 or the DC outlet 12 has not ended, it is determined whether or not the usage time measured by the timer 26 has exceeded the limit value stored in the usage time limit value storage unit 25 (S19). If it is not a limit, the process returns to step S12. If it is a time limit, the user information (power consumption, usage time, usage fee) up to that point is totalized and stored (S14), and the process is terminated. Whether or not the use is finished is determined, for example, by whether or not a termination command is output from the communication terminal 32 or whether or not the supply currents Ia and Ib to the outlet 11 and the DC outlet 12 have become zero over a predetermined time. To do.

  Here, the leakage detection history information such as the leakage occurrence date and time stored in the leakage detection history storage unit 22 and the overcurrent detection such as the overcurrent detection date and overcurrent value stored in the overcurrent detection history storage unit 24 are detected. The history information is transmitted to the center server 31 in response to a request from the center server 31 and is managed by the center server 31.

  In the above description, the usage time limit value storage unit 25 for setting the usage time limit value of the outlet 11 and the DC outlet 12 and the usage time of the outlet 11 and the DC outlet 12 are set in the usage time limit value storage unit 25. Although the timer 26 for turning off the current supplied to the outlet 11 or the DC outlet 12 is provided in the current control unit 14 when the limit value is reached, it may be provided in the center server 31. In this case, when the count value of the timer 26 reaches the limit value set in the use time limit value storage unit 25, the center server 31 notifies the control unit 21 of the current control unit 14 to that effect. Become.

  The use time limit value set in the use time limit value storage unit 25 may be set in advance as a fixed value, or the center server 31 may restrict the use time to the user from the center server 31 to the communication terminal 32. The limit value designated by the user from the communication terminal 32 may be set by inquiring about the value.

  According to the embodiment of the present invention, the outlet 11 and the DC outlet 12 are installed in a predetermined public place in advance, and the center server 31 is installed in the place where the outlet 11 and the DC outlet 12 are installed from the communication terminal 32 by the user. When there is a search request, information on the installation location of the outlet 11 and the DC outlet 12 is transmitted to the communication terminal 32, so that the user can easily grasp the installation location of the outlet 11 and the DC outlet 12 and convenience is improved. . The center server 31 provides detailed information on the use of the outlets 11 and the DC outlets 12 for each installation location in addition to the information on the installation locations of the outlets 11 and the DC outlets 12. The convenience of use of the outlet 12 is further improved.

  The center server 31 outputs a current supply command to the current control unit 14 when the user makes a power supply request from the communication terminal 32 to the outlet 11 or the DC outlet 12, so that the user is not in the consumer. Electricity can be used even in public places that are not available, and convenience is improved.

  When the usage time of the outlet reaches the limit value, the current control unit 14 turns off the current supplied to the outlet 11 and the DC outlet 12, so that the outlet user mistakenly connected the electric device for a long time. Even if it is left as it is, it can be automatically turned off and safety is improved.

  Since the center server 31 aggregates user information (power consumption, usage time, usage fee) for each user, the power consumption, usage time, usage fee can be easily tabulated and billing can be easily tabulated. . The center server 31 provides the communication terminal 32 with the total amount of power used (usage time, usage time, usage fee) for each user when there is a usage fee inquiry request from the communication terminal 32 by the user. The user can easily grasp the user information (power consumption, usage time, usage fee).

  Further, the current control unit 14 monitors the supply current to the outlet 11 and the DC outlet 12, and supplies current to the outlet 11 and the DC outlet 12 so as not to exceed a predetermined overcurrent set value. Electric power can be supplied to the outlet 11 and the DC outlet 12, and it is possible to prevent adverse effects on the distribution line and the host system to which the outlet 11 and the DC outlet 12 are connected. Moreover, since the setting of the overcurrent setting value of the current control unit 14 can be changed from the center server 31, it is possible to easily cope with a change in the capacity of the outlet 11 or the DC outlet 12.

  Next, another embodiment of the present invention will be described. FIG. 5 is a configuration diagram of a public power supply system according to another embodiment of the present invention. This embodiment is different from the embodiment shown in FIG. 1 in that a user specifying information reader for reading user specifying information for specifying a user is provided in the vicinity of the outlet 11, When the user identification information reader reads the user identification information, the user identification information is input from the current control unit, and when the user identification information is registered as a user, current is supplied to the current control unit. A command is output.

  FIG. 4 shows a case where a non-contact IC reader 55 that reads the contents of the non-contact IC 54 is provided near the outlet 11 as the user identification information reader. The non-contact IC reader 55 is connected to the communication port 27 of the current control unit 14, and the center server 31 stores the ID of the non-contact IC 54 registered as a user as user registration information 56 in the storage device.

  In the user registration information 43, users who have agreed to the terms of use of the outlet 11 are registered. Therefore, for the user who intends to agree to the terms of use of the outlet 11 from now on, the center server 31 also has a user registration unit 57 for creating user registration information 56 when the user performs user registration. Have. The same elements as those in FIG. 1 are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 5, the non-contact IC reader 55 is connected to the current control unit 14 and is installed in the vicinity of the outlet 11 and the DC outlet 12. The non-contact IC reader 55 reads the contents of the non-contact IC 54 when the non-contact IC 54 carried by the user is held over and outputs it to the communication port 27 of the current control unit 14.

  The non-contact IC 54 is an IC incorporated in a mobile phone Osaifu-Keitai (registered trademark), a Feilca card, or the like, and is an IC having information that can identify a user.

  When the content of the non-contact IC 54 read from the non-contact IC reader 55 is input to the communication port 27 of the current control unit 14, the content of the non-contact IC is transmitted to the center server 31 via the Internet 29. The outlet identifying unit 36 of the center server 31 identifies the communication port 27 to which the content of the non-contact IC 54 has been transmitted, and identifies the non-contact IC reader 55. Then, the current supply command output unit 37 of the center server 31 determines whether or not the input ID of the non-contact IC is registered in the user registration information 56, and the ID of the non-contact IC 54 is the user registration information 56. Is registered, the current supply command is output to the current control unit 14 via the Internet 29 or the telephone network 30. Thus, the control unit 21 of the current control unit 14 controls supply of current to the outlet 11 and the DC outlet 12 based on the current supply command.

  FIG. 6 is an explanatory diagram of an operation for requesting power supply by the non-contact IC 54 at the place where the outlet 11 or the DC outlet 12 is installed. A non-contact IC reader 55 is provided near the outlet 11 or the DC outlet 12 at the place where the outlet 11 or the DC outlet 12 is installed.

  When the user wants to use the outlet 11 or the DC outlet 12 at the installation location, the user holds the non-contact IC 54 over the non-contact IC reader 55. The non-contact IC reader 55 reads the content of the non-contact IC 54 held by the user and outputs it to the communication port 27 of the current control unit 14. The communication port 27 of the current control unit 14 transmits the content of the input non-contact IC 54 to the center server 31 via the Internet 29. The outlet identifying unit 36 of the center server 31 identifies the non-contact IC reader 55 by identifying the communication port 27 to which the content of the non-contact IC 54 has been transmitted, and the current supply command output unit 37 of the center server 31 is It is determined whether or not the input ID of the contactless IC 54 is registered in the user registration information 56. When the ID is registered in the user registration information 56, the current control unit 14 is connected via the Internet 29 or the telephone network 30. Outputs a current supply command.

  FIG. 7 is a flowchart showing the operation of the public power supply system according to another embodiment of the present invention. First, the user goes to the installation location of the outlet 11 or the DC outlet 12 to be used, and holds the non-contact IC 54 over the non-contact IC reader 55 at the installation location (S1). The outlet identifying unit 36 of the center server 31 identifies the installation location of the outlet 11 and the DC outlet 12 to be supplied with current by identifying the non-contact IC reader 55 that has read the contents of the non-contact IC 54 (S2).

  The current supply command output unit 37 of the center server 31 determines whether or not the ID of the non-contact IC 54 read by the non-contact IC reader 55 is registered in the user registration information 56 (S3). If it is not registered in 56, the process is terminated.

  If the ID of the non-contact IC 54 read by the non-contact IC reader 55 is not registered in the user registration information 56, the user registration unit 57 may prompt user registration. For example, a registration screen of user registration information 56 is displayed on the display unit of the non-contact IC reader 55 to prompt user registration.

  On the other hand, if it is determined in step S3 that the user is registered, the current supply command output unit 37 of the center server 31 outputs a current supply command to the current control unit 14 (S4). This is because the registered user is a user who has already agreed to the terms of service of the outlet 11. When receiving the current supply command, the current control unit 14 starts energization (S5), starts the timer 26, and starts counting the timer 26 (S6). Thereby, the usage time of the outlet 11 or the DC outlet 12 is measured.

  The current control unit 14 determines whether or not leakage has occurred by the leakage detectors 16a and 16b (S7). If leakage occurs, the leakage detectors 16a and 16b open the switches 18a and 18b to open the outlet 11 or the DC outlet 12 The leakage current detection information is stored in the leakage detection history storage unit 22 (S8), and the previous user information (power consumption, usage time, usage fee) is tabulated and stored. (S9), the process ends.

  If there is no leakage, the control unit 21 determines whether the supply current to the outlet 11 or the DC outlet 12 exceeds the overcurrent set value (S10). The unit 21 opens the switches 18a and 18b to cut off the current supply to the outlet 11 and the DC outlet 12, and stores the overcurrent detection information in the overcurrent detection history storage unit 24 (S11). User information (power consumption, usage time, usage fee) is tabulated and stored (S9), and the process is terminated. If the current is not exceeded, use of the power supply is continued (S12).

  Then, the control unit 21 determines whether or not the use is finished (S13). When the use is finished, the user information (power consumption, use time, use fee) up to that time is totalized and stored (S9). The process is terminated. When the use of the outlet 11 or the DC outlet 12 has not ended, it is determined whether or not the usage time measured by the timer 26 has exceeded the limit value stored in the usage time limit value storage unit 25 (S14). If it is not a limit, the process returns to step S7. If it is a time limit, the user information (power consumption, usage time, usage fee) up to that point is totalized and stored (S9), and the process is terminated. Whether or not the use has ended is determined, for example, by whether or not the non-contact IC reader 55 is held over the non-contact IC reader 55 to output an end command, or the supply currents Ia and Ib to the outlet 11 and the DC outlet 12 are determined for a predetermined time. Judgment is made based on whether or not it has become zero.

  According to another embodiment of the present invention, a user can use electric power not only in a communication terminal but also in a non-contact IC or in a public place that is not in a consumer. In this case, since the registered user is a user who has already agreed to the terms of use of the outlet 11, processing for confirming the agreement of the terms of use becomes unnecessary.

  In the above description, a user-specific information reader is provided with the non-contact IC reader 55 that reads the contents of the non-contact IC 54. However, the present invention is not limited to this, and the user's fingerprint, iris, voiceprint, face It is also possible to use a user-specific information reader that reads user-specific information such as the skeleton and veins.

DESCRIPTION OF SYMBOLS 11 ... Outlet, 12 ... DC outlet, 13 ... Distribution line, 14 ... Current control part, 15 ... Electric wire, 16 ... Leakage detector, 17 ... Current detector, 18 ... Switch, 19 ... AC / DC converter, 20 ... measurement storage unit, 21 ... control unit, 22 ... leakage detection history storage unit, 23 ... overcurrent set value storage unit, 24 ... overcurrent detection history storage unit, 25 ... use time limit value storage unit, 26 ... timer, 27 ... Communication port, 28 ... Converter, 29 ... Internet, 30 ... Telephone network, 31 ... Center server, 32 ... Communication terminal, 33 ... Internet, 34 ... Mobile phone, 35 ... Personal computer, 36 ... Outlet identification unit, 37 ... Current supply command output unit 38 ... Overcurrent set value setting unit 39 ... Identification marker display unit 40 ... Identification marker 41 ... Voltage detector 42 ... Power consumption storage unit 43 ... Usage time storage unit 4 ... Installation location information, 45 ... Detailed use information, 46 ... Used energy information, 47 ... Use time information, 48 ... Use charge information, 49 ... Installation location information providing unit, 50 ... User information providing unit, 51 ... Identification indicator Display unit 52... Identification sign 53. Charge information according to installation location 54 54 Non-contact IC 55 55 Non-contact IC reader 56 56 User registration information 57 User registration unit

Claims (15)

An outlet that is installed in advance in a predetermined public place and is supplied with power from a distribution line; a current controller that is connected between the outlet and the distribution line and that controls whether or not current is supplied to the outlet; and
A communication terminal requesting a search for the installation location of the outlet and requesting power supply to the outlet;
The communication terminal is connected via the Internet, and the current control unit is connected via a communication network. When a user requests a search for the location of the outlet from the communication terminal, the location of the outlet is A public power supply system comprising: a center server that transmits information to the communication terminal and outputs a current supply command to the current control unit when there is a power supply request from the communication terminal to the outlet. .   A user identification information reader for reading user identification information for identifying a user is provided connected to the current control unit in the vicinity of the outlet, and the center server is read by the user identification information reader. 2. The public power supply system according to claim 1, wherein when the specified user specifying information is registered as a user, a current supply command is output to the current control unit. An outlet that is installed in advance in a predetermined public place and is supplied with power from a distribution line; a current controller that is connected between the outlet and the distribution line and that controls whether or not current is supplied to the outlet; and
A communication terminal that requests a search for the location of the outlet;
A user identification information reader that is installed in the vicinity of the outlet and connected to the current control unit and reads user identification information for identifying a user;
The communication terminal is connected via the Internet, and the current control unit is connected via a communication network. When a user requests a search for the location of the outlet from the communication terminal, the location of the outlet is When information is transmitted to the communication terminal and the user identification information reader reads the user identification information, the user identification information is input from the current control unit, and the user identification information is registered as a user. A public power supply system, comprising: a center server that outputs a current supply command to the current control unit when the power supply is present.   4. The public power supply according to claim 2, wherein the user identification information is user identification information stored in a non-contact IC, and the user identification information reader is a non-contact IC reader. system.   5. The public power source according to claim 1, wherein the center server provides detailed information on the use of the outlet for each installation location in addition to information on the installation location of the outlet. system.   The public power supply system according to any one of claims 1 to 5, wherein the center server aggregates and stores the usage time, power consumption, and usage charge of the outlet for each user. .   The said center server totalizes and memorize | stores the usage fee calculated by multiplying the usage fee calculated by multiplying the usage fee by the usage fee or the usage fee calculated by multiplying the usage fee by the usage fee by the installation location. The public power supply system according to 6.   The center server uses the outlet usage time and power consumption counted for each user when the user makes a request for inquiry about the usage time, power consumption and usage fee of the outlet from the communication terminal. 8. The public power supply system according to claim 6 or 7, wherein usage charge information is provided to the communication terminal.   9. The public power supply system according to claim 1, wherein the current control unit cuts off a current from the distribution line when detecting a leakage of a subordinate system of the distribution line. 10.   The current control unit cuts off a current from the distribution line when a supply current to the outlet exceeds a predetermined overcurrent set value. Public power system as described in.   The public power supply system according to claim 10, wherein the center server is capable of setting and changing an overcurrent set value of the current control unit.   The current control unit has a use time limit value storage unit for setting a limit value of the use time of the outlet, and a use time of the outlet becomes a limit value set in the use time limit value storage unit And a timer for turning off a current supplied to the outlet, and the center server outputs a count start command for the timer together with a current supply command for the outlet. The public power supply system according to any one of the above.   The center server has a usage time limit value storage unit for setting a limit value of the usage time of the outlet, and when the usage time of the outlet reaches a limit value set in the usage time limit value storage unit A timer for turning off the current supplied to the outlet is provided, and a count start command for the timer is output together with a current supply command for the outlet. Public power system as described.   The current control unit supplies an alternating current supplied from the distribution line to the outlet, converts the alternating current into a direct current, and supplies the converted direct current to the direct current outlet. 14. The public power supply system according to any one of items 1 to 13.   15. The public power supply system according to claim 1, wherein a communication network connecting the current control unit and the center server is the Internet or a communication network of a protocol other than the Internet protocol. .

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