JP5499360B2 - Power plug, power outlet, power supply device and power supply system - Google Patents

Description

  The present invention relates to a power plug, a power outlet, a power supply device, and a power supply system for supplying power to charge a battery of a plug-in hybrid vehicle outdoors, for example.

  An electric vehicle can run by supplying electric power from a battery to a motor. In addition, the hybrid vehicle can run on gasoline and a battery. Recently, such a hybrid vehicle is about to be put into practical use, in which a plug can be charged by inserting a plug into a household outlet. In order to charge the battery of the plug-in hybrid vehicle at home, it is necessary to provide a power outlet outside the house. However, if a power outlet is installed outdoors, there is a risk that a third party may be stolen. Particularly in apartment houses such as apartments, the parking lot is often away from the house, which increases the risk of power theft.

  Japanese Patent Laying-Open No. 2006-244818 (Patent Document 1) describes a power supply system for preventing such theft. This power supply system includes an IC tag that stores a user ID in a power plug. When this power plug is inserted into a power outlet, the tag reader reads the user ID from the IC tag, and checks whether the user ID is registered in the tag database. When the registration is confirmed, commercial power is supplied from the power outlet to the power plug.

JP 2006-244818 A

  The power supply system described in Patent Document 1 has a problem that security is not perfect because it is relatively easy to read the user ID from the IC tag of the power plug.

  Therefore, an object of the present invention is to provide a power plug, a power outlet, a power supply device, and a power supply system that can prevent theft of electricity with a relatively simple configuration.

  The power outlet according to the present invention supplies power to a load through a power plug. The power outlet detects that the power plug has been inserted, detects the amount of power supplied to the load via the power plug, a supply cutoff control unit that controls the supply or cutoff of power, and the power plug Supply of power to the load via the power plug based on the transmitted identification information and predetermined identification information in response to the transmission of identification information indicating that power supply is permitted from Or the outlet side control means which controls interruption | blocking is provided. The outlet-side control means stores the amount of power that can be supplied corresponding to predetermined identification information, the amount of power that can be supplied stored by the power amount storage means, and the actual amount detected by the detection means. Power amount judging means for judging whether or not the power amount matches, and when the power amount judging means judges that the power amount does not match, the supply cutoff control unit determines the power to the load via the power plug. Control to shut off the supply.

  In this way, power supply or cutoff is controlled based on the identification information sent from the power plug, and the amount of power is determined based on the identification information to control power supply or cutoff. Therefore, power can be supplied only to an appropriate power plug, and even when an inappropriate power plug is inserted into a power outlet, power can be cut off to prevent theft.

  As one embodiment, the power outlet includes outlet-side power line carrier communication means for performing power line carrier communication with the power plug, and the outlet-side control means performs power line carrier communication via the outlet-side power line carrier communication means. In response to transmission of identification information indicating that power supply is permitted from the power plug, power to the load via the power plug is transmitted based on the transmitted identification information and predetermined identification information. To control the supply or shut-off. In this way, it is not necessary to use special communication means between the power plug and the power outlet by using the power line carrier communication.

  As another embodiment, an RFID tag holding identification information indicating that power supply is permitted is added to the power plug, and the power outlet includes receiving means for receiving the identification information from the RFID tag. The outlet-side control means controls the supply or interruption of power to the load via the power plug based on the identification information received by the receiving means and predetermined identification information. By doing so, it is possible to control the supply or interruption of power to the load via the power plug based on the identification information received from the RFID tag attached to the power plug and the amount of power corresponding to the identification information. it can. Therefore, by adding not only the identification information but also the amount of power, even when an RFID tag is used, security can be improved and power supply or cutoff control can be performed. In addition, since an RFID tag is used, it is possible to control power supply or cutoff with a simple configuration at low cost.

  As one embodiment, the power amount storage means stores the power amount that can be supplied by being registered in advance or by learning. By doing so, the amount of power to be stored can be made in accordance with the usage situation or the like.

  As another embodiment, the power amount storage means stores the amount of power that can be supplied by being notified from the power plug. By doing so, the amount of power to be stored can be set according to the power plug.

  Preferably, the outlet-side control means includes outlet-side storage means for storing identification information indicating that power supply is permitted, and is stored in the identification information transmitted from the power plug and the outlet-side storage means. A match with the identification information is determined.

  By storing in advance the identification information indicating that power supply is permitted in the outlet side storage means, the identification information transmitted from the power plug is identification information indicating that power supply is permitted. Judgment of whether or not there is easier.

  More preferably, the outlet-side control means repeatedly determines whether the identification information transmitted from the power plug matches the identification information stored in the outlet-side storage means every time a predetermined time elapses.

  Another aspect of the present invention relates to a power supply device including a power outlet and a power plug. The power outlet supplies power to the load through the power plug, and detects that the power plug has been inserted and detects the amount of power supplied to the load through the power plug; and The received identification information and the predetermined identification information in response to the supply cutoff control unit controlling the supply or cutoff of power and the identification information indicating that power supply is permitted from the power plug being transmitted. And an outlet-side control means for controlling supply or interruption of power to the load via the power plug, and the outlet-side control means stores the amount of power that can be supplied corresponding to the predetermined identification information. It is determined whether or not the electric energy storage means, the suppliable electric energy stored by the electric energy storage means, and the actually supplied electric energy detected by the detection means coincide with each other. And a force determination means, when it is determined not to match the electric power amount determination unit controls so as to cut off the supply of power to the through power plug by supply cutoff control unit loads. The power plug supplies power to the load by being inserted into a power outlet, and includes plug-side control means for transmitting identification information indicating that power supply is permitted to the power outlet.

  In this way, power supply or cutoff is controlled based on the identification information sent from the power plug, and the amount of power is determined based on the identification information to control power supply or cutoff. Therefore, power can be supplied only to an appropriate power plug, and even when an inappropriate power plug is inserted into a power outlet, power can be cut off to prevent theft.

  As one embodiment, the power plug includes plug-side power line carrier communication means for performing power line carrier communication with the power outlet, and the plug-side control means is supplied from the power outlet by being inserted into the power outlet. Upon receiving the power, the plug-side power line carrier communication means transmits identification information indicating that power supply is permitted in the power line carrier communication to the power outlet. The power outlet includes an outlet-side power line carrier communication means for performing power line carrier communication with the power plug, and the outlet-side control means supplies power from the power plug by the power line carrier communication via the outlet-side power line carrier communication means. In response to the transmission of the identification information indicating that the power supply is permitted, the supply or interruption of power to the load via the power plug is performed based on the transmitted identification information and the predetermined identification information. Control.

  As another embodiment, the plug-side control means includes an RFID tag that holds identification information, the power outlet includes reception means that receives identification information from the RFID tag, and the outlet-side control means receives the reception information by the reception means. Based on the identification information and predetermined identification information, supply or interruption of power to the load via the power plug is controlled.

  Still another aspect of the present invention relates to a power plug that supplies power to a load by being inserted into a power outlet. The power plug supplies power to the load via the power plug, and detects that the power plug is inserted and detects the amount of power supplied to the load via the power plug; The received identification information and the predetermined identification information in response to the supply cutoff control unit controlling the supply or cutoff of power and the identification information indicating that power supply is permitted from the power plug being transmitted. And an outlet-side control means for controlling supply or interruption of power to the load via the power plug, and the outlet-side control means stores the amount of power that can be supplied corresponding to the predetermined identification information. Electric power storage means, electric power for determining whether or not the suppliable electric energy stored by the electric energy storage means coincides with the actually supplied electric power detected by the detection means A power supply apparatus including a power outlet that controls the supply cut-off control unit to cut off the supply of power to the load via the power plug when the power amount determination means determines that they do not match. Used. And the plug side control means which transmits the identification information which shows that electric power supply is permitted to a power outlet is provided.

  As described above, since the power plug transmits identification information to the power outlet, the power outlet controls the supply or cut-off of power based on the identification information transmitted from the power plug, and also includes the identification information. The amount of electric power is determined based on this to control the supply or interruption of electric power. Therefore, power can be supplied only to an appropriate power plug, and even when an inappropriate power plug is inserted into a power outlet, power can be cut off to prevent theft.

  As one embodiment, the power plug includes plug-side power line carrier communication means for performing power line carrier communication with the power outlet, and the plug-side control means is supplied from the power outlet by being inserted into the power outlet. Upon receiving the power, the plug-side power line carrier communication means transmits identification information indicating that power supply is permitted in the power line carrier communication to the power outlet. The power outlet includes outlet-side power line carrier communication means for performing power line carrier communication with the power plug, and the outlet-side control means is connected to the power plug by power line carrier communication via the outlet-side power line carrier communication means. In response to transmission of identification information indicating that power supply is permitted, supply of power to the load via the power plug or based on the transmitted identification information and predetermined identification information It controls the interruption.

  Preferably, the plug-side control means includes plug-side detection means for detecting the amount of power supplied from the power outlet to the load, and notification means for notifying the power outlet of the amount of power detected by the plug-side detection means. By doing so, the amount of power supplied to the load via the power plug can be recognized at the power outlet.

  Still another aspect of the present invention relates to a power supply system including the power supply device described above and a computer. The power outlet includes an outlet-side network interface unit for connecting to a network, and transmission means for transmitting identification information indicating that power supply is permitted to the computer via the outlet-side network interface unit. The computer includes a computer-side network interface unit for connecting to a network, computer-side storage means for storing predetermined information related to identification information indicating that power supply is permitted, and power transmitted by the transmission means. A determination means for determining whether the identification information indicating that the supply is permitted corresponds to the predetermined information stored by the computer-side storage means, and a predetermined operation according to the result determined by the determination means. Execution means for executing.

  By doing so, it is possible to execute a predetermined operation depending on whether or not the identification information indicating that power supply is permitted corresponds to predetermined information, for example, stolen vehicle information. As a result, it is possible to easily find a stolen vehicle.

  The power outlet according to the present invention controls the supply or cut-off of power based on the identification information sent from the power plug, and controls the supply or cut-off of power by judging the amount of power based on the identification information. To do. Therefore, power can be supplied only to an appropriate power plug, and even when an inappropriate power plug is inserted into a power outlet, power can be cut off to prevent theft.

  In addition, the power supply device according to the present invention controls the supply or cut-off of power based on the identification information sent from the power plug, determines the amount of power based on the identification information, and supplies or Control shut-off. Therefore, power can be supplied only to an appropriate power plug, and even when an inappropriate power plug is inserted into a power outlet, power can be cut off to prevent theft.

  In the power plug according to the present invention, since the power plug transmits identification information to the power outlet, the supply or interruption of power is controlled at the power outlet based on the identification information sent from the power plug. At the same time, the amount of power is determined based on the identification information, and the supply or interruption of power is controlled. Therefore, power can be supplied only to an appropriate power plug, and even when an inappropriate power plug is inserted into a power outlet, power can be cut off to prevent theft.

  The power supply system according to the present invention performs a predetermined operation according to whether or not the identification information indicating that power supply is permitted corresponds to predetermined information, for example, information on a stolen vehicle. be able to. As a result, it is possible to easily find a stolen vehicle.

It is a block diagram which shows the electric power supply apparatus containing the power outlet and the power plug in one Embodiment of this invention, and a setting part. It is a figure which shows the connection state of the power outlet part and power plug part shown in FIG. It is a flowchart which shows the operation | movement for setting ID number to a power outlet part and a power plug part. It is a flowchart for demonstrating operation | movement of the electric power supply apparatus in one Embodiment of this invention. It is a block diagram which shows the electric power supply apparatus in other embodiment of this invention. It is other embodiment which controls electric power supply, Comprising: It is a flowchart for demonstrating operation | movement of an electric power supply apparatus. It is further another embodiment which controls electric power supply, Comprising: It is a flowchart for demonstrating operation | movement of an electric power supply apparatus. It is a block diagram which shows the power plug part in the case of notifying the power supply outlet part of the electric energy supplied. It is a flowchart shown about the case where electric power is supplied to load via a power plug part. It is a figure which shows the case where a table tap is connected to the power outlet part of the electric power supply apparatus of FIG. It is a block diagram which shows the electric power supply apparatus in further another embodiment of this invention. It is a flowchart shown about the case where an electric power supply apparatus controls the electric power supply to a power plug part. It is a figure which shows an example of the electric power supply system in other embodiment of this invention. It is a flowchart for demonstrating operation | movement of the electric power supply system in further another embodiment of this invention.

  FIG. 1 is a block diagram showing a power supply device 5 including a power outlet and a power plug and a setting unit 2 according to an embodiment of the present invention.

  In FIG. 1, the power supply device 5 includes a power outlet unit 3 as a power outlet and a power plug unit 4 as a power plug inserted into the power outlet unit 3. The setting unit 2 is provided in the building 1. The setting unit 2 is provided to set an ID number as identification information for identifying whether or not power supply to the power plug unit 4 is permitted to the power outlet unit 3 and the power plug unit 4. Commercial power of 100V is supplied to the power cable 10a. The power cable 10 a is connected to the setting unit 2 and the power outlet unit 3.

  The setting unit 2 includes a control unit 21, a PLC (Power Line Communication) block 22 that operates as a power line carrier communication unit, a memory 23, and an operation unit 24.

  When the control unit 21 receives the outlet number of the power outlet unit 3, the plug number of the power plug unit 4, and the ID number from the operation unit 24, the control unit 21 stores the outlet number, the plug number, and the ID number in the memory 23. Remember me. Here, the outlet number, the plug number, and the ID number are stored in the memory 23 in order to manage whether or not power supply to the power plug unit 4 is permitted. In addition, the control unit 21 performs control for transmitting the outlet number, the plug number, and the ID number to the power outlet unit 3 and the power plug unit 4 through the power cables 10a and 10b by the PLC block 22 through power line carrier communication. .

  The PLC block 22 superimposes a high-frequency signal as a carrier wave on the power cable 10a, and performs power line carrier communication bidirectionally with the PLC block 32 of the power outlet unit 3 using the power cable 10a as a transmission path. The power line carrier communication includes a spread spectrum system, an OFDM (Orthogonal Frequency Division Multiplexing) system, and the like. In this embodiment, a spread spectrum method is used.

  The spread spectrum method is a method in which a narrow band signal is spread over a wide band using a spreading code and transmitted on the transmission side. On the receiving side, the reverse operation is performed on the transmitting side to restore the original narrowband signal using the same spreading code. In the spread spectrum system, narrowband noise is noise whose broadband level is reduced by despreading on the receiving side, and is therefore resistant to various narrowband noises. Further, since the peak value of the signal can be lowered by spreading on the transmission side, the leakage of the peak value of the leakage electric field can be reduced.

  The power outlet unit 3 supplies power to the load through the power plug unit 4, and operates as a terminal board 30, a control unit 31 that operates as a outlet side control unit, and a outlet side power line carrier communication unit. The PLC block 32, an embedded memory, which includes a memory 33 that operates as an outlet-side storage unit, a detection circuit 34 that operates as a detection unit, and a power cutoff control unit 35 that operates as a supply cutoff control unit. A plurality of power outlet units 3 are provided, for example, a plurality of power outlet units 3 are provided on the outer wall surface of the building 1.

  An insertion terminal of the power plug portion 4 is inserted into the terminal plate 30. The control unit 31 controls the PLC block 32 and the power cut-off control unit 35, and controls writing / reading of the memory 33. The PLC block 32 performs power line carrier communication with the PLC block 22 of the setting unit 2 via the power cable 10a and power line carrier communication with the PLC block 42 of the power plug unit 4 via the power cable 10b. I do. The memory 33 stores the ID number. This ID number is used to determine whether or not the inserted power plug unit 4 is allowed to supply power on the power outlet unit 3 side. For example, when the power outlet unit 3 allows the power supply of the plurality of power plug units 4, the memory 33 uses the same plurality of ID numbers as the ID numbers stored in the plurality of power plug units 4. Remember. Further, the memory 33 stores an outlet number. The outlet number is, for example, a manufacturing number or a serial number given in advance at the time of shipment, and is for identifying each of the plurality of power outlet units 3. The detection circuit 34 detects whether or not the insertion terminal of the power plug unit 4 is inserted into the terminal plate 30. The detection circuit 34 detects, for example, whether or not the power plug unit 4 is inserted into the terminal board 30 using a pulse signal. Specifically, when a pulse signal is transmitted to the power plug unit 4 and a response to the transmitted pulse signal is returned, the detection circuit 34 detects that the power plug unit 4 is inserted into the terminal board 30. The power cutoff control unit 35 supplies or cuts off power to the terminal board 30 in accordance with the control of the control unit 31.

  The power outlet unit 3 includes a registration mode, a normal mode, and a constant energization mode. The registration mode refers to a state in which the ID number can be stored in the memory 33. In addition, the normal mode means that only the power plug unit 4 that matches the ID number stored in the memory 33 can be energized. In addition, the constant energization mode means that any power plug unit 4 can be energized regardless of whether or not it matches the ID number stored in the memory 33.

  The power plug unit 4 supplies power to a load, and includes a control unit 41 that operates as a plug-side control unit, a PLC block 42 that operates as a plug-side power line carrier communication unit, and an embedded memory, And a memory 43 that operates as a side storage means. Further, a plurality of power plug portions 4 are provided.

  The control unit 41 controls the PLC block 42 and controls writing and reading of the memory 43. The PLC block 42 performs power line carrier communication with the PLC block 32 of the power outlet unit 3 through the power cable 10b. The memory 43 stores the ID number. This ID number is used to determine whether the power plug unit 4 is allowed to supply power when the power plug unit 4 is inserted into the power outlet unit 3 described above. Is for. For example, a different unique ID number is stored in each of the plurality of power plug units 4. The memory 43 stores a plug number. The plug number is, for example, a manufacturing number or a serial number given in advance at the time of shipment, and is for identifying each of the plurality of power plug units 4.

  FIG. 2 is a diagram illustrating a connection state between the power outlet unit 3 and the power plug unit 4 illustrated in FIG. 1. In FIG. 2, the core wire of the power cable 10 a is connected to receiving terminals 36 and 37. The insertion terminals 44 and 45 of the power plug unit 4 are inserted into the receiving terminals 36 and 37 through the terminal plate 30. When the power plug unit 4 is inserted into the terminal plate 30 of the power outlet unit 3, power is supplied from the power cable 10a to the power cable 10b via the receiving terminals 36 and 37 and the plug terminals 44 and 45 of the power plug unit 4. Is done.

  Here, a case where the setting unit 2 sets ID numbers for the power outlet unit 3 and the power plug unit 4 will be described. FIG. 3 is a flowchart showing an operation for setting ID numbers in the power outlet unit 3 and the power plug unit 4, (A) shows the operation of the setting unit 2, and (B) shows the operation of the power outlet unit 3. (C) shows the operation of the power plug unit 4.

  When setting the ID number, power line carrier communication is established between the PLC block 22 of the setting unit 2 and the PLC block 32 of the power outlet unit 3. When the power plug unit 4 is inserted into the terminal plate 30 of the power outlet unit 3, the detection circuit 34 detects that the power plug unit 4 has been inserted and indicates that the power plug unit 4 has been inserted. A detection signal is output to the control unit 31. And the control part 31 detects that the power plug part 4 was inserted, turns ON the electric power interruption control part 35, and supplies the electric power to the terminal board 30 from the power cable 10a. Thereby, power is supplied to the power plug unit 4, and power line carrier communication is established between the PLC block 32 of the power outlet unit 3 and the PLC block 42 of the power plug unit 4. Moreover, the control part 31 transfers to registration mode.

  First, a user inputs an outlet number and an ID number from the operation unit 24 of the setting unit 2 with reference to a list of outlet numbers for setting ID numbers prepared in advance. When a plurality of power outlet units 3 are provided, the outlet number is input to identify each. The ID number is input to identify the power plug unit 4 that is allowed to supply power.

  The control unit 21 of the setting unit 2 determines whether or not an outlet number has been input in step (abbreviated as SP in the drawing) SP1 shown in FIG. In step SP2, it is determined whether or not an ID number has been input. When it is determined that the ID number has been input, in step SP3, the outlet number and the ID number are written in the memory 23, and sent to the power cable 10a by the PLC block 22. The PLC block 22 establishes power line carrier communication with the PLC block 32 of the power outlet unit 3 via the power cable 10a, and sends out the outlet number and the ID number.

  The establishment of the power line carrier communication means that the data transmitted by the power line carrier communication from the PLC block 22 of the setting unit 2 on the transmission side can be restored in the PLC block 32 of the power outlet unit 3 on the reception side. say.

  The PLC block 32 of the power outlet unit 3 receives the outlet number and the ID number sent from the PLC block 22 of the setting unit 2 and outputs them to the control unit 31. In step SP11 shown in FIG. 3B, the control unit 31 determines whether or not a corresponding outlet number is received among the outlet numbers of the plurality of power outlet units 3, and if it is determined that it has been received, In SP12, it is determined whether or not an ID number has been received. When determining that the ID number has been received, the control unit 31 writes the received ID number into the memory 33 in step SP13.

  Further, the user inputs the plug number and the ID number from the operation unit 24 of the setting unit 2. The ID number is the same ID number set in the power outlet unit 3.

  The controller 21 of the setting unit 2 determines whether or not a plug number has been input in SP4. When it is determined that a plug number has been input, in step SP5 it is determined whether or not an ID number has been input. Determine. When determining that the ID number has been input, the control unit 21 writes the plug number and the ID number into the memory 23 and sends the plug number and the ID number to the power cable 10a through the PLC block 22 in step SP6. Let The PLC block 22 sends out the plug number and the ID number via the power cable 10a.

  The PLC block 42 of the power plug unit 4 establishes power line carrier communication with the PLC block 22 of the setting unit 2, receives the plug number and the ID number, and outputs them to the control unit 41. In step SP21 shown in FIG. 3C, the control unit 41 determines whether or not the corresponding plug number among the plug numbers of the plurality of power plug units 4 has been received, and has received the plug number. In step SP22, it is determined whether or not an ID number has been received. When it is determined that the ID number has been received, the ID number is written into the memory 43 in step SP23.

  In this way, the power plug unit 4 is inserted into the power outlet unit 3, and the setting unit 2 sets an ID number which is identification information for permitting the power outlet unit 3 and the power plug unit 4 to use power. Can be set. Further, since the memories 33 and 43 for writing the ID number are embedded memories, security can be improved. When the setting of the ID number is completed, the user pulls out the power plug unit 4 from the power outlet unit 3 in advance.

  The ID number set in the power plug unit 4 is set in the power plug unit 4 from the setting unit 2, but is set in the power plug unit 4 from the setting unit 2 through the control unit 31 of the power outlet unit 3. You may make it do. That is, an outlet number, a plug number, and an ID number are input from the setting unit 2 and are temporarily transmitted to the power outlet unit 3. The PLC block 32 of the power outlet unit 3 and the PLC block of the power plug unit 4 are sent. Power line carrier communication is established with 42, and the plug number and ID number are sent from the power outlet unit 3 to the power plug unit 4.

  Further, the example in which the power plug unit 4 is inserted into the terminal board 30 of the power outlet unit 3 before setting the outlet number and the ID number has been described, but the present invention is not limited to this, and the outlet number, the ID number, Then, the power plug unit 4 may be inserted into the terminal board 30 of the power outlet unit 3.

  FIG. 4 is a flowchart for explaining the operation of the power supply device 5 according to the embodiment of the present invention. For example, in actual use such as charging a battery of a plug-in hybrid vehicle owned by the user, the power plug unit 4 is inserted into the terminal plate 30 of the power outlet unit 3 as shown in FIG. When the power plug unit 4 is inserted into the terminal board 30, the detection circuit 34 detects that the power plug unit 4 has been inserted and outputs a detection signal indicating that the power plug unit 4 has been inserted to the control unit 31. To do.

  When the control unit 31 detects that the power plug unit 4 has been inserted in step SP31 shown in FIG. 4, the control unit 31 turns on the power cutoff control unit 35 in step SP32 to energize the terminal board 30 from the power cable 10a. Let Thereby, power is supplied to the power plug unit 4, and power line carrier communication is established between the PLC block 32 of the power outlet unit 3 and the PLC block 42 of the power plug unit 4. In addition, the control unit 31 shifts to the normal mode or the constant energization mode described above. In this embodiment, the normal mode is entered.

  When power line carrier communication is established, the control unit 41 of the power plug unit 4 reads the ID number written in the memory 43, and sends the ID number to the power cable 10b by the power line carrier communication by the PLC block 42.

  In step SP33, the control unit 31 of the power outlet unit 3 detects whether or not the power line carrier communication is established. When detecting that the power line carrier communication is established, whether or not the ID number is transmitted in step SP34. Detect whether or not. When detecting the transmission of the ID number, the control unit 31 checks in step SP35 whether or not the ID number written in the memory 33 matches the ID number transmitted from the power plug unit 4. To do. When determining that the ID numbers match, the control unit 31 continues energization by the power cut-off control unit 35 until it is determined in step SP36 that the insertion of the power plug unit 4 is no longer detected. Continue to supply power to the load.

  If it is not determined in step SP33 that power line carrier communication has been established, if it is not possible to detect the sending of an ID number in step SP34, or if collation cannot be detected in step SP35, the process proceeds to step SP37. The power cut-off control unit 35 is turned off to stop energization.

  When charging of the battery of the plug-in hybrid vehicle is completed, the user pulls out the power plug portion 4 from the terminal board 30. When the power plug unit 4 is pulled out, the plug-in terminals 44 and 45 are also pulled out, and the control unit 31 determines in step SP36 that the power plug unit 4 has been pulled out by the detection circuit 34. The power interruption control unit 35 is turned off, and the power supply to the power plug unit 4 is stopped.

  In step SP38, it is determined whether or not the power plug unit 4 is inserted. If it is determined that the power plug unit 4 is removed and the power plug unit 4 is not inserted, the process returns to the initial state. . If the power plug unit 4 remains inserted into the power outlet unit 3, the state, that is, the state where the energization is stopped is maintained. This is because once the energization is completed, the power plug unit 4 is removed, and then the power plug unit 4 cannot be energized unless the power plug unit 4 is inserted into the power outlet unit 3 again.

  As described above, according to the embodiment of the present invention, even if a power plug that is not allowed to supply power is inserted into a power outlet, the ID number cannot be verified, so that power supply is prohibited and power theft can be prevented. In addition, since the ID number is transmitted using power line carrier communication, it is not necessary to use another communication medium, and the configuration can be simplified.

  A plurality of different power plug units 4 can be inserted into the power outlet unit 3, and different ID numbers are assigned to the respective power plug units 4 by the setting unit 2, and each ID number is assigned to the memory of the power outlet unit 3. You may memorize | store in 33. By doing so, when any one of the power plug units 4 is inserted into the power outlet unit 3 and the ID number can be collated, it is possible to energize. Further, a common ID number may be assigned without making the ID number different for each power plug unit 4.

  In the above-described embodiment, the detection circuit 34 has been described as an example of detecting whether or not the power plug unit 4 is inserted into the terminal board 30 by using a pulse signal. However, the present invention is not limited to this. Whether the plug portion 4 is inserted into the terminal board 30 may be detected by an optical sensor, or may be mechanically detected by a microswitch or the like.

  Further, in the above-described embodiment, the example in which the outlet number, the plug number, and the ID number are stored in the memory 23 of the setting unit 2 has been described. If it is not necessary to manage such information, it may not be stored.

  Moreover, although the electric power supply apparatus 5 demonstrated the example which does not include the setting part 2 in the above-mentioned embodiment, it may include the setting part 2 without being restricted to this.

  Moreover, although the above-mentioned embodiment demonstrated the example which uses a spread spectrum system for power line carrier communication, you may use an OFDM system. The OFDM method is a transmission method in which a large number of carrier waves are orthogonally multiplexed on the frequency axis, and has high frequency utilization efficiency and is easy to increase in speed. In the OFDM scheme, since transmission control for each carrier is possible, for a band in which the influence on the existing radio station is particularly concerned, by stopping the transmission of the corresponding carrier (so-called notch), Coexistence is possible.

  In the above-described embodiment, the power outlet unit 3 includes the registration mode, the normal mode, and the constant energization mode. For example, when the ID number is set, the example of shifting to the registration mode has been described. However, the ID number setting or the like may be performed without any particular mode.

  In the above-described embodiment, an example in which a plurality of power outlet units 3 and power plug units 4 are provided has been described. However, the present invention is not limited to this, and the present invention can also be applied to a case where there is one each. Specifically, when one power outlet unit 3 is provided at the time of setting the ID number, the input of the outlet number is omitted and only the ID number is input. When one power plug unit 4 is provided, the input of the plug number is omitted and only the ID number is input.

  Moreover, although the above-mentioned embodiment demonstrated the example which inputs an outlet number from the operation part 24 of the setting part 2 by referring to the list of outlet numbers etc. which set the ID number prepared beforehand, it is restricted to this. For example, when power line carrier communication is established between the PLC block 22 of the setting unit 2 and the PLC block 32 of the power outlet unit 3, the power outlet unit 3 sets its own outlet number to the setting unit 2. The notification may be made by referring to the notified outlet number.

  Further, in the above-described embodiment, an example is described in which the setting unit 2 is provided to set the ID number by performing power line carrier communication between the PLC block 22 of the setting unit 2 and the PLC block 32 of the power outlet unit 3. However, the present invention is not limited to this, and as another embodiment, the ID number is set via the external device IF unit by providing the external device IF (interface) unit in the power outlet unit without providing the setting unit. May be. FIG. 5 is a block diagram showing a power supply device 55 according to another embodiment of the present invention.

  Referring to FIG. 5, power supply device 55 includes a power outlet unit 53 and a power plug unit 54. In this embodiment, one power outlet unit 53 and one power plug unit 54 are provided. The power outlet unit 53 includes an external device IF unit 66. The external device IF unit 66 is for connecting to an external device such as a keyboard or a display screen (display). That is, the keyboard and display screen are attached to the power outlet unit 53 via the external device IF unit 66. Other components are the same as those in the above embodiment, and thus the description thereof is omitted.

  Here, a case where ID numbers are set in the power outlet unit 53 and the power plug unit 54 via the external device IF unit 66 will be described. First, the user inserts the power plug portion 54 into the terminal board 60 of the power outlet portion 53. When the power plug 54 is inserted into the terminal board 60, the detection circuit 64 detects that the power plug 54 is inserted, and sends a detection signal indicating that the power plug 54 has been inserted to the controller 61. Output.

  When the control unit 61 detects that the power plug unit 54 has been inserted, the control unit 61 turns on the power cut-off control unit 65 and energizes the terminal board 60 from the power cable 56a. As a result, power is supplied to the power plug unit 54, and power line carrier communication is established between the PLC block 62 of the power outlet unit 53 and the PLC block 58 of the power plug unit 54. Further, the control unit 61 shifts to the registration mode.

  Then, the user selects to set the ID number of the power outlet unit 53 and inputs the ID number from the keyboard. Then, the control unit 61 writes the input ID number into the memory 63 of the power outlet unit 53.

  Further, the user selects to set the ID number of the power plug unit 54 and inputs the ID number from the keyboard. Then, the control unit 61 causes the PLC block 62 to send out the input ID number to the power cable 56a. The PLC block 62 sends out an ID number via the power cable 56a. The PLC block 58 of the power plug unit 54 establishes power line carrier communication with the PLC block 62 of the power outlet unit 53, receives the ID number, and outputs it to the control unit 57. The control unit 57 writes the ID number in the memory 59 of the power plug unit 54.

  In this way, the ID number can be set with a simple configuration without providing a setting unit.

  In the above-described embodiment, the example in which the ID number is set by the user using the setting unit or the external device has been described. However, the present invention is not limited to this, and the manufacturing number or serial number given in advance at the time of shipment. It may be something like this.

  In the above-described embodiment, the outlet number and the plug number are described as an example of a manufacturing number or a serial number given in advance at the time of shipment. However, the present invention is not limited to this, and it is similar to the case of setting an ID number. Alternatively, setting may be performed using a setting unit or an external device.

  In the above-described embodiment, as the operation of the power supply device 5, as shown in FIG. 4, once the ID number is verified, the power cut-off control is performed until it is determined that the insertion of the power plug unit 4 is not detected. Although the example which continues the electricity supply by the part 35 was demonstrated, you may control whether it continues electricity supply by collating ID number whenever predetermined time passes without limiting to this.

  FIG. 6 is a flowchart for explaining the operation of the power supply device 5 as another embodiment for controlling the power supply. When it is detected in step SP61 shown in FIG. 6 that the power plug unit 4 has been inserted, in step SP62, the power shutoff control unit 35 is turned on, and power is supplied from the power cable 10a to the terminal board 30. Thereby, power is supplied to the power plug unit 4, and power line carrier communication is established between the PLC block 32 of the power outlet unit 3 and the PLC block 42 of the power plug unit 4.

  When power line carrier communication is established, the control unit 41 of the power plug unit 4 reads the ID number written in the memory 43, and sends the ID number to the power cable 10b by the power line carrier communication by the PLC block 42.

  In step SP63, the control unit 31 of the power outlet unit 3 detects whether or not the power line carrier communication is established. When detecting that the power line carrier communication is established, whether or not the ID number is transmitted in step SP64. Detect whether or not. When detecting the transmission of the ID number, the control unit 31 checks whether or not the ID number written in the memory 33 matches the ID number transmitted from the power plug unit 4 in step SP65. To do. When determining that the ID numbers match, the control unit 31 continues energization by the power cut-off control unit 35 until a predetermined time elapses in step SP66.

  When a predetermined time elapses, ID numbers are collated again in step SP65. At this time, if it is determined that the ID numbers do not match, the process proceeds to step SP67 to turn off the power cutoff control unit 35 and stop energization.

  As described above, according to this embodiment, the ID number is repeatedly checked every time a predetermined time elapses during energization, even if the ID numbers are once matched and it is determined that the ID numbers match. Match numbers. Therefore, for example, even if the power plug is replaced with a power supply unit that is not allowed to supply power while being energized, the ID number cannot be verified, so that energization can be stopped and theft is prevented more reliably. Can do. The predetermined time may be a time corresponding to a charging time of a battery such as a plug-in hybrid vehicle. For example, the ID number may be repeatedly checked every time a quarter of the entire charging time elapses as the predetermined time.

  Further, in the above-described embodiment, as an operation of the power supply device 5, as illustrated in FIG. 4, the example of controlling the power supply by checking the ID number has been described, but here, the power supply is controlled. Still another embodiment will be described.

  First, referring to FIG. 1, the memory 33 of the power outlet unit 3 stores the amount of power that can be supplied corresponding to the ID number. For example, as described above, the setting unit 2 or the like is stored by being written in advance when setting the ID number. Here, the memory 33 operates as power amount storage means. The amount of power that can be supplied is, for example, power per unit time flowing through the power cable 10a. And it is set by each load. That is, the current of power for the load with ID number 1 is 1A, and the current of power for the load with ID number 2 is 2A. Thus, it is set corresponding to the ID number. The detection circuit 34 detects the amount of power supplied to the load via the power plug unit 4. The control unit 31 determines whether the amount of power stored in the memory 33 matches the amount of power actually supplied detected by the detection circuit 34. This determination includes determining whether or not the electric energy falls within a predetermined range. Here, the control unit 31 operates as a power amount determination unit.

  FIG. 7 is a flowchart for explaining the operation of the power supply device 5 as still another embodiment for controlling the power supply. When it is detected in step SP71 shown in FIG. 7 that the power plug unit 4 has been inserted, in step SP72, the power cut-off control unit 35 is turned on, and power is supplied from the power cable 10a to the terminal board 30. Thereby, power is supplied to the power plug unit 4, and power line carrier communication is established between the PLC block 32 of the power outlet unit 3 and the PLC block 42 of the power plug unit 4.

  When power line carrier communication is established, the control unit 41 of the power plug unit 4 reads the ID number written in the memory 43, and sends the ID number to the power cable 10b by the power line carrier communication by the PLC block 42.

  In step SP73, the control unit 31 of the power outlet unit 3 detects whether or not the power line carrier communication is established. Detect whether or not. When detecting the transmission of the ID number, the control unit 31 checks whether or not the ID number written in the memory 33 matches the ID number transmitted from the power plug unit 4 in step SP75. To do. When the control unit 31 determines that the ID numbers match, in step SP76, the control unit 31 checks whether or not the power amount corresponding to the ID number stored in the memory 33 matches the supplied power amount. To do. For example, if the current of the power corresponding to the ID number is 1A and the current of the power to be actually supplied is 1A, it is determined that they match, and control is performed to continue energization in step SP77.

  For example, when a predetermined time has elapsed in step SP78, the power amount is checked again in step SP76. At this time, for example, if the power amount corresponding to the ID number is 1A and the actually supplied power amount is changed to 2A, it is determined that the power amounts do not match, and the process proceeds to step SP79. Control is performed to turn off the power interruption control unit 35 and stop energization. That is, control is performed so as to cut off the supply of power to the load via the power plug unit 4.

  As described above, according to this embodiment, even when it is determined that the ID numbers are matched and the ID numbers are matched, an appropriate power plug is further checked by checking the power amount. Therefore, even if an inappropriate power plug is inserted into the power outlet, the power can be cut off and theft can be prevented more reliably.

  In the above-described embodiment, the example in which the detection circuit 34 detects the amount of power to be supplied has been described. However, the present invention is not limited thereto. It is good also as a structure provided separately.

  Note that the amount of power that can be supplied corresponding to the ID number may be set by learning. For example, the amount of power actually supplied is stored in the memory 33 and the difference from the amount of power stored in advance in the memory 33 is calculated, so that the difference is converted into the amount of power stored in the memory 33 in advance. It may be set by adding or the like. Further, the amount of power actually supplied may be stored in the memory 33 for a plurality of times, and may be set from the average value thereof.

  In the above-described embodiment, the control unit 31 of the power outlet unit 3 collates whether or not the amount of power corresponding to the ID number stored in the memory 33 matches the amount of power to be supplied. However, the present invention is not limited to this, and as another embodiment, the power plug unit notifies the power outlet unit of the amount of power supplied from the power outlet unit. It may be verified whether or not the amount of power to be supplied matches. FIG. 8 is a block diagram showing the power plug unit 92 when notifying the power outlet unit of the amount of power to be supplied.

  Referring to FIG. 8, power plug unit 92 includes a power amount detection block 96 that operates as a plug-side detection unit that detects the amount of power supplied from the power outlet unit to the load. The control unit 93 notifies the power outlet unit of the amount of power detected by the power amount detection block 96. Here, the controller 93 operates as a notification unit.

  FIG. 9 is a flowchart illustrating a case where power is supplied to the load via the power plug unit 92. (A) shows the operation of the power outlet unit, and (B) shows the operation of the power plug unit 92. With reference to FIGS. 8 and 9, a case where power is supplied to the load via the power plug 92 will be described. The power outlet unit in this case may have the configuration shown in FIG. 1 or the configuration shown in FIG.

  First, in step SP81 shown in FIG. 9A, when the power outlet unit detects that the power plug unit 92 has been inserted, in step SP82, the power cut-off control unit is turned on, and power is supplied from the power cable to the terminal board. Turn on the power. As a result, power is supplied to the power plug unit 92, and power line carrier communication is established between the PLC block of the power outlet unit and the PLC block 97 of the power plug unit 92.

  When the power line carrier communication is established, the control unit 93 of the power plug unit 92 reads the ID number written in the memory 95, and sends the ID number to the power cable 10b by the power line carrier communication by the PLC block 97.

  In step SP83, the control unit of the power outlet unit detects whether or not the power line carrier communication is established. When detecting that the power line carrier communication is established, whether or not the ID number is transmitted in step SP84. Is detected. When detecting the sending of the ID number, the control unit checks in step SP85 whether the ID number written in the memory matches the ID number sent from the power plug unit 92 or not. When it is determined that the ID numbers match, the control unit instructs the power plug unit 92 to notify the power amount supplied to the load in step SP86.

  Then, in step SP101 shown in FIG. 9B, the power plug unit 92 receives an instruction to notify the amount of power, and in step SP102, the power amount detection block 96 detects the amount of power supplied to the load. . In step SP103, the detected power amount is notified to the power outlet unit.

  Then, when notified of the power amount from the power plug unit 92 in step SP87 shown in FIG. 9A, the power outlet unit stores the notified power amount in the memory, and in step SP88, the notified power amount is stored. It is checked whether the amount and the amount of power to be supplied match. For example, if the notified power current is 1 A and the actually supplied power current is 1 A, it is determined that they match, and control is performed to continue energization in step SP89.

  For example, in step SP90, when a predetermined time has elapsed, in step SP86, the power plug unit 92 is instructed to notify the amount of power supplied to the load. It is checked whether or not the amount of power to be supplied matches. At this time, for example, if the notified power amount is 1A and the actually supplied power amount is changed to 2A, it is determined that the power amounts do not match, and the process proceeds to step SP91 to cut off the power Control is performed so that the controller is turned off to stop energization. That is, control is performed so that the supply of power to the load via the power plug unit 92 is cut off.

  In step SP87, even when the power amount is not notified from the power plug unit 92, the process proceeds to step SP91 to control the power cut-off control unit to be turned off to stop energization.

  As described above, according to this embodiment, by using the power amount notified from the power plug unit 92, the power outlet unit stores the power amount corresponding to the ID number in advance without storing it. The amount of power can be determined according to the power plug unit 92.

  In the above-described embodiment, the example in which the power plug unit 92 notifies the detected power amount by receiving an instruction to notify the power amount from the power outlet unit has been described. The amount of power detected at regular time intervals may be notified.

  In the above-described embodiment, the power outlet unit stores the amount of power notified from the power plug unit 92 in the memory so that the notified amount of power matches the amount of power to be supplied. However, the present invention is not limited to this, and the amount of power notified from the power plug unit 92 is not stored in the memory. You may collate.

  FIG. 10 is a diagram illustrating a case where the table tap 90 is connected to the power outlet unit 3 of the power supply device 5 of FIG. 1. Here, still another embodiment will be described with reference to FIG.

  Referring to FIG. 10, a table tap 90 is connected to the power outlet unit 3. The table tap 90 has a plurality of insertion ports 91a and 91b. Here, when the power plug unit 94a that is allowed to supply power is inserted into one of the plurality of insertion ports 91a and 91b, as described above, the ID number is collated to start supplying power. To do. Thereafter, when the power plug 94b that is not allowed to supply power is inserted into the other one of the plurality of insertion ports 91a and 91b, the power supply is continued as it is. Thereafter, when the power plug portion 94a that is allowed to supply power is pulled out, only the power plug portion 94b that is not allowed to supply power continues to supply power. Even in such a case, as shown in FIG. 6 described above, when the ID number is repeatedly checked every time the predetermined time elapses, the ID numbers after the predetermined time have not matched. Therefore, as a result, the energization can be stopped, and theft can be more reliably prevented. Further, as shown in FIG. 7 described above, a power plug portion 94a that is allowed to supply power is inserted into one of the plurality of insertion ports 91a and 91b, and then the plurality of insertion ports 91a and 91b. Even when a power plug portion 94b that is not allowed to supply power is inserted into the other one of them, it is determined that the power amount does not match the power amount corresponding to the ID number due to the change in the power amount. Therefore, it is possible to prevent theft of electricity more reliably.

  The same applies to FIG. 9 described above. Specifically, when a power plug portion 94a that is allowed to supply power is inserted into one of the plurality of insertion ports 91a and 91b, a power current of, for example, 1 A is notified from the power plug portion 94a. Is done. Thereafter, when a power plug unit 94b that is not allowed to supply power is inserted into the other one of the plurality of insertion ports 91a and 91b, the amount of power supplied from the power outlet unit 3 is determined by the power plug unit. This is the total of 94a and 94b. However, since the power plug 94b that is not allowed to supply power is not notified of the power current, the power current supplied from the power outlet unit 3 has a value different from 1A to be notified. As a result, it is determined that the notified power amount does not match the supplied power amount, so that theft can be prevented more reliably.

  Next, still another embodiment of the present invention for controlling power supply will be described. FIG. 11 is a block diagram showing a power supply apparatus 100 according to still another embodiment of the present invention. Referring to FIG. 11, power supply device 100 includes a power outlet unit 101 and a power plug unit 102.

  The power outlet unit 101 supplies power to the load via the power plug unit 102. The terminal board 109, the control unit 106, the memory 107, and the plug terminal of the power plug unit 102 are inserted. And a detection circuit 108 that operates as a detection means for detecting the amount of power supplied to the load via the power plug unit 102, a power cutoff control unit 104 that operates as a supply cutoff control unit, and a power outlet A tag control unit 105 that controls an RFID (Radio Frequency Identification) tag located outside the unit 101. As described above, the memory 107 stores the ID number of the power plug unit that allows power supply, and stores the amount of power that can be supplied corresponding to the ID number. Here, the memory 107 operates as an electric energy storage unit. The tag control unit 105 outputs an electromagnetic wave that drives the RFID tag and receives an electromagnetic wave transmitted from the RFID tag. When receiving electromagnetic waves, directivity may be controlled so that only electromagnetic waves from a predetermined direction are received, or control may be performed so that only electromagnetic waves from a specific RFID tag are received. .

  An RFID tag 110 is added to the power plug unit 102. The RFID tag 110 includes a control unit 111 and a memory 112. Similar to the above-described embodiment, the memory 112 stores an ID number as identification information for identifying whether or not power supply to the power plug unit 102 is permitted. The RFID tag 110 is a passive type, and is driven by electromagnetic waves output from the tag control unit 105 of the power outlet unit 101 to transmit an ID number to the power outlet unit 101. Note that the communicable distance between the RFID tag 110 and the tag control unit 105 is, for example, 5 mm or less.

  Here, the operation of the power supply apparatus 100 will be described. FIG. 12 is a flowchart illustrating a case where the power supply apparatus 100 controls power supply to the power plug unit 102. (A) shows the operation of the power outlet unit 101, and (B) shows the operation of the power plug unit 102.

  First, when the power plug unit 102 approaches the electromagnetic wave output range of the power outlet unit 101 while the power outlet unit 101 is outputting electromagnetic waves, the RFID tag 110 is driven. Then, the control unit 111 of the RFID tag 110 transmits the ID number stored in the memory 112 to the power outlet unit 101 in step SP210 of FIG. Here, the control unit 111 operates as plug-side control means.

  Then, the power outlet unit 101 receives the ID number transmitted from the power plug unit 102 in step SP201 in FIG. Here, the tag control unit 105 operates as a receiving unit. When receiving the ID number, the control unit 106 collates in step SP202 whether or not the ID number stored in the memory 107 matches the ID number received from the power plug unit 102. If it is determined that they do not coincide with each other, even if it is detected by the detection circuit 108 that the power plug unit 102 has been inserted thereafter, no energization is performed in step SP206. If it is determined that they match, then when it is detected that the power plug unit 102 has been inserted, the power cutoff control unit 104 is turned on in step SP203, and power is supplied from the power cable 103a to the terminal plate 109. Let In step SP204, it is verified whether the amount of power corresponding to the ID number stored in the memory 107 matches the amount of power actually supplied. Here, if it is determined that they match, control is performed to continue energization in step SP205, and if it is determined that they do not match, control is performed to stop energization in step SP206. That is, control is performed so as to cut off the supply of power to the load via the power plug unit 102. Here, the control unit 106 operates as an outlet-side control unit and an electric energy determination unit.

  As described above, the power supply device 100 uses the power plug unit 102 based on the identification information received from the RFID tag 110 attached to the power plug unit 102 and the amount of power corresponding to the identification information in the power outlet unit 101. It is possible to control the supply or interruption of power to the load via the. Therefore, by determining not only the identification information but also the amount of electric power, even when an RFID tag is used, security can be improved and power supply or interruption control can be performed. In addition, since the RFID tag 110 is used, power supply or cutoff control can be performed at a low cost with a simple configuration.

  In step SP201, when the ID number cannot be received, the energization is not performed even if the detection circuit 108 detects that the power plug unit 102 has been inserted.

  Further, in the above-described embodiment, when checking the amount of power, an example of checking the amount of power corresponding to the ID number stored in the memory 107 of the power outlet unit 101 and the amount of power actually supplied. Although described above, the present invention is not limited to this, the amount of power that can be supplied to the load via the power plug unit 102 is stored in the memory 112 of the RFID tag 110 of the power plug unit 102, and the power that can be supplied together with the identification information By transmitting the amount to the power outlet unit 101, the power outlet unit 101 may collate the amount of power received from the power plug unit 102 with the amount of power actually supplied. That is, in this case, the memory 107 of the power outlet unit 101 does not have to store the amount of power corresponding to the ID number. In this case, the amount of transmitted power is a fixed value.

  Further, in the above-described embodiment, when the amount of power is collated, the detection circuit 108 detects the amount of power supplied to the power plug unit 102 and stores it in the memory 107 of the power outlet unit 101. However, the present invention is not limited to this, and the power plug unit 102 in the memory 112 of the RFID tag 110 of the power plug unit 102 is not limited to this. By storing the amount of power that can be supplied to the load via the terminal and transmitting the amount of power that can be supplied together with the identification information to the power outlet unit 101, the power outlet unit 101 receives the amount of power received from the power plug unit 102. The power amount corresponding to the ID number stored in the memory 107 of the power outlet unit 101 may be collated. In this case, even if the power plug unit 102 is inserted, control may be performed so that energization is not started until ID number verification and power amount verification are performed.

  In the above-described embodiment, an example in which the power plug unit 102 is detected after the ID number is verified in step SP202 has been described. However, the present invention is not limited to this, and the power plug unit 102 is not limited thereto. After the insertion of the power plug unit 102, the ID number may be verified by driving the RFID tag 110 after detecting the insertion of. In this case, even if the power plug unit 102 is inserted, control may be performed so that energization is not started until ID number verification and power amount verification are performed.

  The ID number verification and the power amount verification may be repeated every time a predetermined time elapses.

  In the above-described embodiment, the power outlet unit 101 includes the tag control unit 105, and the power plug unit 102 includes the RFID tag 110. The PLC block 62 illustrated in the embodiment of FIG. However, the present invention is not limited to this, but the configuration includes a PLC block in addition to the tag control unit 105 and the RFID tag 110, and in addition to communication by the RFID tag 110, power line carrier communication It is good also as performing.

  In addition, the power plug unit 102 may have a configuration including both the RFID tag 110 and the PLC block, a configuration including only the RFID tag 110, or a configuration including only the PLC block. There may be. The power outlet unit 101 includes both the tag control unit 105 and the PLC block, and controls the tag control unit 105 and the PLC block to operate in accordance with the configuration of the power plug unit 102. You can go.

  Next, a power supply system according to still another embodiment of the present invention will be described. FIG. 13 is a diagram showing an example of a power supply system according to still another embodiment of the present invention.

  Referring to FIG. 13, the power supply system includes a power supply device 75 including a power outlet unit 73 and a power plug unit 74, and a computer (personal computer) 88.

  The power outlet unit 73 includes an outlet-side network IF unit 86 for connecting to the network 87 and a control unit 81 that operates as a transmission unit. The computer 88 is connected to a network 87, a computer-side network IF unit 71 for connecting to the network 87, a control unit 70 that controls the entire computer 88 and operates as a determination unit and an execution unit, And a memory 72 that operates as The memory 72 stores predetermined information related to the ID number. Other components are the same as those in the above embodiment, and thus the description thereof is omitted.

  FIG. 14 is a flowchart for explaining the operation of the power supply system according to still another embodiment of the present invention. (A) shows the operation of the power outlet unit 73, and (B) shows the operation of the computer 88. .

  When it is detected in step SP41 shown in FIG. 14 that the power plug unit 74 has been inserted, in step SP42, the power shutoff control unit 85 is turned on, and power is supplied from the power cable 76a to the terminal plate 80. As a result, power is supplied to the power plug unit 74 and power line carrier communication is established between the PLC block 82 of the power outlet unit 73 and the PLC block 78 of the power plug unit 74. Here, the control unit 81 shifts to the constant energization mode.

  When power line carrier communication is established, the control unit 77 of the power plug unit 74 reads the ID number written in the memory 79, and sends the ID number to the power cable 76b by the power line carrier communication by the PLC block 78.

  When the control unit 81 of the power outlet unit 73 detects whether or not the power line carrier communication is established in step SP43 and detects that the power line carrier communication is established, whether or not the ID number is transmitted in step SP44. Detect whether or not. When detecting the transmission of the ID number, the control unit 81 transmits the ID number to the computer 88 via the outlet side network IF unit 86 in step SP45.

  Then, in SP51, the computer 88 checks whether or not the transmitted ID number corresponds to the stolen vehicle by collating with predetermined information related to the ID number stored in the memory 72, for example, information on the stolen vehicle. to decide. Specifically, a vehicle production number is associated with the transmitted ID number, and it is determined from the production number whether the vehicle corresponds to a stolen vehicle.

  Then, a predetermined operation is executed according to the determined result. Specifically, in the case of a stolen vehicle, in SP52, the power outlet unit 73 is instructed to continue energization via the computer-side network IF unit 71, and the police is notified. If not, in SP53, the power outlet unit 73 is instructed to continue energization through the computer-side network IF unit 71 as it is. That is, the computer 88 is a center that manages stolen vehicles and the like.

  If it is not determined in step SP43 that power line carrier communication has been established, or if transmission of an ID number cannot be detected in step SP44, the process proceeds to step SP46 to turn off the power cutoff control unit 85. To stop energization.

  By doing so, it is possible to notify a predetermined operation, here the police, depending on whether or not the identification information indicating that the power supply is allowed corresponds to the stolen vehicle information. As a result, it is possible to easily find a stolen vehicle.

  In the above-described embodiment, the computer has been described as an example of instructing the power outlet unit 73 to continue energization and reporting to the police when the computer corresponds to the stolen vehicle as the predetermined operation. Without being limited to this, the power outlet unit 73 may be instructed to end the energization.

  Moreover, although the electric power supply system demonstrated the example which does not include a setting part in the above-mentioned embodiment, it may include a setting part, without restricting to this. In this case, the setting unit may include a network IF unit for connecting to a network, and transmit the ID number to the computer via the network IF unit of the setting unit.

  In the above-described embodiment, the power supply system includes an example in which the power outlet unit 73 and the power plug unit 74 include the PLC blocks 82 and 78 and performs power line communication. However, the present invention is not limited to this. 11, the power outlet unit may include a tag control unit, and the power plug unit may include an RFID tag. The RFID tag may be used to transmit and receive an ID number and the like.

  Further, the present invention can be applied to an electronic device having a rechargeable battery such as a plug-in hybrid vehicle, an electric vehicle, and a mobile phone.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  DESCRIPTION OF SYMBOLS 1 Building 2, Setting part 3,53,73,101 Power outlet part 4,54,74,94a, 94b, 92,102 Power plug part 5,55,75,100 Power supply apparatus 10a, 10b, 56a, 56b, 76a, 76b, 103a, 103b power cable, 21, 31, 41, 57, 61, 70, 77, 81, 93, 106, 111 control unit, 22, 32, 42, 58, 62, 78, 82, 97 PLC block, 23, 33, 43, 59, 63, 72, 79, 83, 95, 107, 112 Memory, 24 operation unit, 30, 60, 80, 109 Terminal board, 34, 64, 84, 108 Detection circuit, 35, 65, 85, 104 Power cut-off control unit, 36, 37 Receiving terminal, 44, 45 Plug-in terminal, 66 External device IF unit, 71, 86 Network IF unit, 87 network, 88 computer, 90 table tap, 91a, 91b outlet, 96 electric energy detection block, 105 tag control unit, 110 RFID tag.

Claims (14)

A power outlet that supplies power to the load via a power plug,
Detecting means for detecting that the power plug is inserted, and detecting the amount of power supplied to the load via the power plug;
A supply cutoff control unit for controlling supply or cutoff of power;
In response to transmission of identification information indicating that power supply is permitted from the power plug, a load via the power plug is determined based on the transmitted identification information and predetermined identification information. Outlet side control means for controlling the supply or interruption of power to
The outlet side control means includes
Power amount storage means for storing a power amount that can be supplied corresponding to the predetermined identification information;
A power amount determination means for determining whether or not the suppliable power amount stored by the power amount storage means and the actually supplied power amount detected by the detection means match,
A power outlet for controlling the supply of power to the load via the power plug to be cut off by the supply cut-off control unit when the power amount judging means determines that they do not match. The power outlet includes an outlet-side power line carrier communication means for performing power line carrier communication with the power plug,
In response to the fact that identification information indicating that power supply is permitted from the power plug is transmitted by the power line carrier communication via the outlet side power line carrier communication means via the outlet side power line carrier means. The power outlet according to claim 1, wherein power supply to or cut off from the load via the power plug is controlled based on the identification information that has been provided and predetermined identification information. An RFID tag that holds identification information indicating that power supply is permitted is added to the power plug,
The power outlet includes receiving means for receiving the identification information from the RFID tag,
The said outlet side control means controls supply or interruption | blocking of the electric power to the load through the said power plug based on the said identification information received by the said reception means, and predetermined identification information. power outlet. The power outlet according to any one of claims 1 to 3, wherein the power storage means stores the power that can be supplied by being registered in advance or by learning. The power outlet according to any one of claims 1 to 4, wherein the power storage unit stores a power amount that can be supplied when notified by the power plug. The outlet-side control means includes outlet-side storage means for storing identification information indicating that the power supply is permitted, and is stored in the outlet-side storage means and the identification information transmitted from the power plug. The power outlet according to any one of claims 1 to 5, wherein a match with the identification information is determined. The outlet-side control means repeatedly determines whether the identification information transmitted from the power plug matches the identification information stored in the outlet-side storage means every time a predetermined time elapses. The power outlet according to 6. A power supply device including a power outlet and a power plug,
The power outlet supplies power to the load via the power plug, and detects that the power plug is inserted and detects the amount of power supplied to the load via the power plug. The identification that has been transmitted in response to the detection means, the supply interruption control unit that controls the supply or interruption of power, and the identification information indicating that power supply is permitted from the power plug. Outlet side control means for controlling supply or interruption of power to the load via the power plug based on the information and predetermined identification information,
The outlet-side control means detects the amount of power that can be supplied corresponding to the predetermined identification information, the amount of power that can be supplied stored by the power amount storage means, and the detection means. Power amount judging means for judging whether or not the power amount actually supplied matches, and when the power amount judging means judges that they do not match, the power cut-off control section causes the power plug to be Control to cut off the power supply to the load via
The power plug supplies power to a load by being inserted into the power outlet, and includes plug-side control means for transmitting identification information indicating that power supply is permitted to the power outlet. Power supply device. The power plug includes a plug-side power line carrier communication means for performing power line carrier communication with the power outlet,
The plug-side control means receives power supplied from the power outlet by being inserted into the power outlet, and indicates that power supply is permitted by the plug-side power line carrier communication means in the power line carrier communication Send information to the power outlet,
The power outlet includes an outlet-side power line carrier communication means for performing power line carrier communication with the power plug,
In response to the fact that identification information indicating that power supply is permitted from the power plug is transmitted by the power line carrier communication via the outlet side power line carrier communication means via the outlet side power line carrier means. The power supply device according to claim 8, wherein power supply or interruption to the load via the power plug is controlled based on the identification information that has been provided and predetermined identification information. The plug-side control means includes an RFID tag that holds the identification information,
The power outlet includes receiving means for receiving the identification information from the RFID tag,
The said outlet side control means controls supply or interruption | blocking of the electric power to the load via the said power plug based on the said identification information received by the said reception means, and predetermined identification information. Power supply device. A power plug that supplies power to the load by being inserted into a power outlet,
Detecting power for supplying power to the load via the power plug, detecting that the power plug is inserted, and detecting the amount of power supplied to the load via the power plug; A supply cutoff control unit that controls supply or cutoff of power, and identification information that indicates that power supply is permitted from the power plug, and identification information that has been transmitted and predetermined identification And an outlet-side control means for controlling supply or interruption of power to the load via the power plug based on the information, the outlet-side control means being able to supply electric power corresponding to the predetermined identification information The power amount storage means for storing the amount, the supplyable power amount stored by the power amount storage means, and the actually supplied power amount detected by the detection means are: A power amount judging means for judging whether to perform or not, and when the power amount judging means judges that they do not match, the supply cutoff control unit cuts off the supply of power to the load via the power plug Used for power supply devices including power outlets to control
A power plug comprising plug-side control means for transmitting identification information indicating that power supply is permitted to the power outlet. The power plug includes a plug-side power line carrier communication means for performing power line carrier communication with the power outlet,
The plug-side control means receives power supplied from the power outlet by being inserted into the power outlet, and indicates that power supply is permitted by the plug-side power line carrier communication means in the power line carrier communication Send information to the power outlet,
The power outlet includes an outlet-side power line carrier communication means for performing power line carrier communication with the power plug,
In response to the fact that identification information indicating that power supply is permitted from the power plug is transmitted by the power line carrier communication via the outlet side power line carrier communication means via the outlet side power line carrier means. The power plug according to claim 11, wherein power supply to or cut off from the load via the power plug is controlled based on the identification information that has been provided and predetermined identification information. The plug-side control means includes a plug-side detection means for detecting the amount of power supplied from the power outlet to the load;
The power plug according to claim 11 or 12, further comprising notification means for notifying the power outlet of the amount of power detected by the plug-side detection means. A power supply system including the power supply device according to any one of claims 8 to 10 and a computer,
The power outlet is
An outlet-side network interface for connecting to the network;
Transmitting means for transmitting identification information indicating that the power supply is permitted to the computer via the outlet-side network interface unit;
The computer
A computer-side network interface for connecting to the network;
Computer-side storage means for storing predetermined information related to identification information indicating that the power supply is permitted;
A determination means for determining whether or not the identification information indicating that the power supply transmitted by the transmission means is permitted corresponds to the predetermined information stored by the computer-side storage means;
An electric power supply system comprising: execution means for executing a predetermined operation according to a result determined by the determination means.

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