JP6640968B2 - Charge control system - Google Patents

Description

  The present invention relates to a charge control system that can sequentially charge a plurality of objects to be charged, such as electronic devices equipped with a secondary battery.

  2. Description of the Related Art In recent years, electronic devices and electric vehicles such as portable terminals driven by a secondary battery as a power supply have been widely used. Accordingly, charging facilities provided with charging devices for charging secondary batteries mounted on these electronic devices and electric vehicles are installed in various places.

  Generally, in such a charging facility, a plurality of charging devices are provided so that a plurality of users can simultaneously charge at any time. For example, Patent Literature 1 proposes a charge control system that can charge a plurality of electric vehicles using a plurality of charging devices installed in a coin parking lot, a public parking lot, or the like.

  This charging control system includes a plurality of charging devices and a centralized controller for centrally managing each charging device, and each charging device and the centralized controller are connected by communication means. When charging a plurality of electric vehicles, a certain standard such as charging time and charging capacity is set, and charging is performed sequentially within the charging limit, so that all connected electric vehicles are charged. Can be charged.

JP 2011-244630 A

  By the way, in a conventional charging device for charging an electronic device, one power outlet is usually required for one charging device. Requires as many power outlets as there are charging devices. For this reason, when a sufficient power outlet cannot be secured in a room or the like, there is a problem that the power outlet is insufficient and a required number of charging devices cannot be installed, or that power supply work must be performed to increase the number of power outlets. was there.

  In a charging facility for charging an electric vehicle as disclosed in Patent Document 1, a connection order of a plurality of charging devices is determined, each charging device is fixedly installed in advance, and each charging device is connected to a centralized controller by communication means. And the charging by each charging device must be controlled.

  On the other hand, when charging an electronic device such as a mobile terminal in a building such as a school, it is conceivable to move or add a charging device. Therefore, when the charging device is fixedly installed or fixedly connected as in Patent Literature 1, there is a problem that the charging device cannot be easily moved or added.

  In view of the above, the present invention has been made in view of the above-described problems in the related art, and enables charging from a single power outlet to a plurality of charging devices, and facilitates movement and expansion of the charging devices. It is an object of the present invention to provide a charging control system that can change the connection order of each charging device freely.

  In order to achieve the above object, the present invention is a charging control system, comprising a plurality of charging storage devices for charging an object to be charged housed therein, wherein the plurality of charging storage devices is a charging device for transmitting electricity. Line and a control signal line that transmits a control signal, are connected in series, charge the object to be charged from the foremost charge storage device according to the connection order, and are connected after completion of charging by a predetermined charge storage device. A charge control system that performs charging by a next-stage charge storage device, wherein the charge storage device includes information indicating a position with respect to another charge storage device based on a connection state of the charging line and the control signal line, and is stored. The object to be charged is charged based on the information indicating the state of charge of the object to be charged and the information indicating the completion of charging in the connected preceding charge storage device.

  As described above, according to the present invention, it is possible to charge a plurality of charging devices from one power outlet, and it is possible to easily move or add a charging device. Can be changed freely.

It is a block diagram showing one embodiment of a charge control system concerning the present invention. It is a state transition diagram for explaining the state of a charge storage device. It is a flowchart for demonstrating the flow of the process which detects the position of the charge storage device by a position detection program. It is a flowchart for demonstrating the flow of a process at the time of charge standby by a charge standby program. It is a flowchart for demonstrating the flow of the process at the time of charge execution by a charge execution program.

  Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an embodiment of a charge control system according to the present invention. This charge control system 1 is configured by connecting a plurality of charge storage devices 10 (10A, 10B, 10C) as a charging device in series, and each charge storage device 10 includes a smart phone, a tablet terminal, or the like inside. The electronic device is accommodated as the article to be charged 2 (2A, 2B, 2C). In this example, three charging storage devices 10A, 10B, and 10C are connected, and the objects to be charged 2A, 2B, and 2C are accommodated in each of them. However, the number of charging storage devices 10 is not limited to this. It suffices that at least two be used.

  The charge storage device 10 (10A, 10B, 10C) includes a controller 11 (11A, 11B, 11C), a charge state management unit 12 (12A, 12B, 12C), an AC input unit 13 (13A, 13B, 13C), and an AC power supply. A switch 14 (14A, 14B, 14C) and an AC output unit 15 (15A, 15B, 15C) are provided. Since the charge storage devices 10A, 10B and 10C have the same configuration and function, in the following description, when it is not necessary to particularly distinguish the charge storage devices 10A, 10B and 10C, the charge storage device 10A , And the same applies to each element constituting the charge storage devices 10A, 10B, and 10C.

  The controller 11 controls the charge storage device 10 to charge the charge target 2 based on the charge state of the charge target 2 accommodated in the charge storage device 10 and the connection state of the AC input unit 13 and the AC output unit 15. Control. The controller 11 (11A, 11B, 11C) has an input connector 21 (21A, 21B, 21C) as a command input unit and an output connector 22 (22A, 22B, 22C) as a command output unit, and a position detection program 23. (23A, 23B, 23C), a charge standby program 24 (24A, 24B, 24C) and a charge execution program 25 (25A, 25B, 25C).

  The input connector 21 is connected to the output connector 22 of the other adjacent charge storage device 10, and indicates that the own device 10 can start charging the object 2 from the other adjacent charge storage device 10. Receive start command. The output connector 22 is connected to the input connector 21 of the adjacent charging storage device 10, and is connected to the adjacent charging storage device 10 when the charging of the charged object 2 stored in the own device 10 is completed. A charging start command is transmitted to the terminal.

  The position detection program 23 is a program for detecting a positional relationship between the own device 10 and another charge storage device 10 based on various connection states. The charging standby program 24 is a program that operates while the charging target 2 accommodated in the own device 10 is waiting for charging. The charging execution program 25 is a program that operates when charging the charged object 2 stored in the own device 10. The details of the operation of each program described above will be described later.

  Further, the controller 11 sets a position status as position information indicating the position of the own device 10 based on the execution result of the position detection program 23. The position status indicates to which position of the plurality of charging storage devices 10 the own device 10 is connected, for example, “position 1” indicating that the device is located at the forefront, and being located at an intermediate stage. And "position 3" indicating that it is located at the last stage.

  The charge state management unit 12 detects the charge state of the charged object 2 accommodated in the charge storage device 10, and sets a charge completion flag indicating the charge state of the charged object 2 according to the detection result. The charge completion flag indicates the state of charge of the object to be charged 2 using, for example, a binary value of “0” or “1”. The value “0” indicates a state where the charging of the object to be charged 2 is not completed, and the value “1” indicates a state where the charging of the object to be charged 2 is completed.

  Further, when the charging of the article to be charged 2 is completed, the charging state management unit 12 transmits to the controller 11 charging completion information indicating that the charging has been completed.

  The AC input section 13 is connected to an external power outlet or an AC output section 15 of another adjacent charge storage device 10, and is supplied with AC power from the external or adjacent other charge storage device 10. The AC input unit 13 outputs the supplied AC power to the AC power switch 14. When the device 10 is located at the forefront, the AC input unit 13 is connected to an external power outlet. On the other hand, when the own device 10 is located at the middle stage or the last stage, the AC input unit 13 is connected to the AC output unit 15 of the adjacent preceding charge storage device 10.

  The AC power switch 14 (14A, 14B, 14C) has one input terminal 14a (14Aa, 14Ba, 14Ca) and two output terminals 14b (14Ab, 14Bb, 14Cb) and 14c (14Ac, 14Bc, 14Cc). Have. The AC power switch 14 outputs the AC power supplied to the input terminal 14a via the AC input unit 13 to the selected output terminal 14b or 14c by selectively switching between the two output terminals 14b and 14c. I do.

  When the output terminal 14b is selected, the AC power switch 14 outputs the AC power supplied to the input terminal 14a from the output terminal 14b, and supplies the AC power to the object 2 to be charged. On the other hand, when the output terminal 14c is selected, the AC power supplied to the input terminal 14a is output from the output terminal 14c and supplied to the AC output unit 15.

  The AC output unit 15 is connected to the AC input unit 13 of the adjacent charge storage device 10 at the subsequent stage, and supplies AC power input through the AC power switch 14 to the connected charge storage device 10. When the own device 10 is located at the last stage, nothing is connected to the AC output unit 15.

  Next, the operation of the charging storage device 10 having the above configuration will be described.

  First, the state of the charge storage device 10 will be described. As shown in FIG. 2, when the power of the charge storage device 10 is turned off, the state of the charge storage device 10 is the power-off state S1.

  When the power of the charging storage device 10 is turned on, the state of the charging storage device 10 transitions to the position detection state S2. In the position detection state S2, the charge storage device 10 executes the position detection program 23 to detect which position the own device 10 is connected to.

  When the position of the own device 10 is detected, the state of the charging storage device 10 transitions to the charging standby state S3. In the charging standby state S3, the charging storage device 10 executes the charging standby program 24 and waits for the charging of the charged object 2 to start.

  Next, when charging can be started, the state of the charging storage device 10 transitions to the charging execution state S4. In the charge execution state S4, the charge storage device 10 executes the charge execution program 25 to charge the object 2 to be charged. When the charging of the object to be charged 2 is completed, the state of the charging storage device 10 transitions to the charging standby state S3.

  In the charging standby state S3, when the charging of the article to be charged 2 is completed, the state of the charging storage device 10 transits to the standby state S5, and then the power of the charging storage device 10 is turned off. Then, the state of the charge storage device 10 transitions to the power-off state S1.

  Next, a process of detecting the position of the charging storage device 10 by the position detection program 23 will be described with reference to the flowchart of FIG.

  When the state of the charge storage device 10 becomes the position detection state (state S2 in FIG. 2) and the position detection program 23 is executed, the controller 11 connects the input connector 21 to the output connector 22 of another charge storage device 10. The connection state of whether the connection is established or not is detected (step S11). Similarly, the controller 11 detects whether or not the input connector 21 of another charging storage device 10 is connected to the output connector 22 (step S12). Further, the controller 11 detects a connection state as to whether or not the AC input unit 13 of the other charge storage device 10 is connected to the AC output unit 15 (Step S13). In the following, “connection at input connector 21”, “connection at output connector 22”, and “connection at AC output unit 15” are described as “I connection”, “O connection”, and “P connection”, respectively. explain.

  Here, as a method of detecting whether or not the output connector 22 or the input connector 21 is connected to the input connector 21 or the output connector 22, various methods conventionally used can be applied. Specifically, for example, a physical switch is provided for the input connector 21 and the output connector 22, and when the switches are turned on, it is determined that the output connector 22 or the input connector 21 is connected. it can. Alternatively, for example, a predetermined signal may be transmitted from the input connector 21 or the output connector 22 and when there is a response, it may be determined that the output connector 22 or the input connector 21 is connected.

  Further, similarly, for the AC output unit 15, for example, by providing a physical switch for the AC output unit 15, it is possible to detect whether or not the AC input unit 13 is connected.

  Next, the controller 11 determines the connection state of the input connector 21, the output connector 22, and the AC output unit 15 based on the detection results in steps S11 to S13 (step S14).

  If it is determined in step S14 that there is an O connection and a P connection, the controller 11 sets the position status to “position 1” (step S15). That is, the controller 11 determines that the own device 10 is located at the forefront.

  If it is determined in step S14 that there is an I connection, an O connection, and a P connection, the controller 11 sets the position status to “position 2” (step S16). That is, the controller 11 determines that the own device 10 is located at the intermediate stage.

  If it is determined in step S14 that there is only the I connection, the controller 11 sets the position status to “position 3” (step S17). That is, the controller 11 determines that the own device 10 is located at the last stage.

  Then, in step S18, the controller 11 shifts to a charging standby state (state S3 in FIG. 2), and a series of processing by the position detection program 23 ends.

  Next, the process at the time of charging standby by the charging standby program 24 will be described with reference to the flowchart of FIG.

  When the state of the charge storage device 10 changes to the charge standby state (state S3 in FIG. 2) and the charge standby program 24 is executed, the controller 11 checks the charge flag set in the charge state management unit 12 and checks its own device. It is determined whether or not the charging of the article to be charged 2 accommodated in 10 has been completed (step S21).

  When the value of the charge flag is “0” and it is determined that the charging of the article to be charged 2 is not completed (step S21; Yes), the controller 11 sets the position set in step S15, S16 or S17 in FIG. The status is confirmed, and the position of the own device 10 is determined (step S22).

  If the position status is set to “position 2” or “position 3” and it is determined that the own device 10 is connected to the middle or last position, the controller 11 It is determined whether or not the charging start command output from the charging storage device 10 is received (step S23).

  If it is determined that the charging start command has been received, the process proceeds to step S24. If it is determined that the charge start command has not been received, the process returns to step S23, and the process of step S23 is repeated until the charge start command is received.

  If the position status is set to "position 1" in step S22 and it is determined that the own device 10 is connected to the position at the forefront, the process proceeds to step S24.

  In step S24, the controller 11 shifts to the charging execution state (state S4 in FIG. 2), and a series of processing by the charging standby program 24 ends.

  On the other hand, when the value of the charge flag is “1” in step S21 and it is determined that the charging of the charged object 2 is completed (step S21; No), the controller 11 waits (state S5 in FIG. 2). (Step S25), and a series of processes by the charging standby program 24 is completed.

  Next, the process at the time of charging execution by the charging execution program 25 will be described with reference to the flowchart of FIG.

  When the state of the charge storage device 10 becomes a charge execution state (state S4 in FIG. 2) and the charge execution program 25 is executed, the controller 11 switches the output terminal of the AC power switch 14 to the output terminal 14b side, and The charging of the object 2 is started (step S31).

  Next, in step S32, the controller 11 determines whether or not charging completion information indicating that charging of the charged object 2 has been completed has been received from the charging state management unit 12. When the charging state management unit 12 detects that the charging of the charged object 2 is completed and determines that the controller 11 has received the charging completion information (step S32; Yes), the controller 11 outputs the output terminal of the AC power switch 14 Switch to the terminal 14c side (step S33). Further, the charge state management unit 12 sets the charge completion flag to a value “1” indicating that the charge has been completed (step S34).

  On the other hand, if the controller 11 determines in step S32 that the charging completion information has not been received (step S32; No), the charging of the article to be charged 2 is not completed, and the process returns to step S32. The process of step S32 is repeated until charging completion information is received.

  Next, in step S35, the controller 11 checks the position status and determines the position of the own device 10. If the position status is “position 1” or “position 2”, the process proceeds to step S36, and the controller 11 issues a charge start command to the adjacent charge storage device 10 to which the output connector 22 is connected. Send. On the other hand, if the position status is “position 3” in step S35, the process proceeds to step S37.

  In step S37, the controller 11 shifts to a charging standby state (state S3 in FIG. 2), and a series of processes by the charging execution program 25 ends.

  As described above, in the present embodiment, by performing the processing shown in FIGS. 3 to 5 in each charging storage device 10, in the present embodiment, the first charging storage device 10A first charges the object to be charged 2A, and after the charging is completed. The next adjacent charge storage device 10B charges the object to be charged 2B, and the charge storage device 10A enters a standby state.

  Next, when charging of the charged object 2B is completed by the charging storage device 10B, the next adjacent charging storage device 10C charges the charged object 2C, and the charging storage device 10B enters a standby state. Finally, when charging of the charged object 2C is completed by the charge storage device 10C, the charge storage device 10C enters a standby state. Thus, the charging of the charged object 2 by all the connected charging storage devices 10 is completed.

  As described above, according to the present embodiment, the position status indicating the position of the own device detected by the position detection program, the charge start command received from the preceding charge storage device, and the charging of the contained charged object. Since the object to be charged is charged based on the state, the plurality of connected charge storage devices can charge the object to be charged in order from the forefront. Even if the order of connection is changed, charging can be performed in order from the forefront.

  Furthermore, in the charging control system according to the present embodiment, since only the first charging storage device needs to be connected to the external power outlet, charging by each charging storage device is performed using only one power outlet. be able to.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment of the present invention, and various modifications and applications may be made without departing from the scope of the present invention. Is possible. For example, the charge storage device 10 is not limited to the case where one charged object 2 is stored and charged. For example, two or more charged objects 2 may be stored and charged. In this case, for example, when the charging of the plurality of charged objects 2 stored in the charging storage device 10 is completed, the charging of the charged objects 2 in the adjacent subsequent charging storage device 10 is started. I do.

1 Charge control system 2 (2A, 2B, 2C) Charged object 10 (10A, 10B, 10C) Charge storage device 11 (11A, 11B, 11C) Controller 12 (12A, 12B, 12C) Charge state management unit 13 (13A) , 13B, 13C) AC input unit 14 (14A, 14B, 14C) AC power switch 14a (14Aa, 14Ba, 14Ca) Input terminal 14b (14Ab, 14Bb, 14Cb) Output terminal 14c (14Ac, 14Bc, 14Cc) Output terminal 15 (15A, 15B, 15C) AC output unit 21 (21A, 21B, 21C) Input connector 22 (22A, 22B, 22C) Output connector 23 (23A, 23B, 23C) Position detection program 24 (24A, 24B, 24C) Charging Standby program 25 (25A, 25B, 25C) Line program

Claims (7)

It consists of a plurality of charging storage devices for charging objects to be charged housed inside,
The plurality of charge storage devices are connected in series by a charging line that transmits electricity and a control signal line that transmits a control signal,
Charge the object to be charged from the foremost charge storage device according to the connection order,
A charge control system that performs charging by a connected next-stage charge storage device after completion of charging by a predetermined charge storage device,
The charging storage device, information indicating a position with respect to another charging storage device based on the connection state of the charging line and the control signal line,
Information indicating the state of charge of the contained charged object;
A charging control system, wherein the object to be charged is charged based on information indicating that charging has been completed in a connected charging storage device at a preceding stage. The charge storage device,
A charge state management unit that detects a charge state of the charge target, and generates charge completion information indicating charge completion of the charge target when charging is completed;
An AC input unit to which AC power is input from an external power supply or a connected charging storage device,
An AC output unit that is connected to an AC input unit of the connected charge storage device and outputs an AC power,
An input terminal to which the AC power input from the AC input unit is input, and first and second output terminals that output the AC power input to the input terminal to either the object to be charged or the AC output unit. A switch having an output terminal;
A controller that switches an output terminal of the switch and controls charging of the object to be charged,
The controller is
A command input unit in which a charge start command indicating that charging can be started is input from the preceding charge storage device,
A command input unit connected to a command input unit of the subsequent charge storage device, and when charging of the contained charged object is completed, a command output unit that outputs the charge start command to the subsequent charge storage device,
Based on a connection state of the command input unit, the command output unit, and the AC output unit, a position detection unit that detects a position of the own device with respect to another charging storage device and generates position information indicating the position. ,
The charging control system according to claim 1, wherein an output terminal of the switch is switched based on the position information, the charging completion information, and the charging start command. The position detecting means,
Said command input unit is not in a connected state, when the command output unit and the AC output unit is in the connected state, the charging storage device is determined to be located forefront, the charging storage device as said position information most Set the first position information indicating that it is located at the previous stage,
When the command input unit, the command output unit, and the AC output unit are in a connected state, it is determined that the charge storage device is located at an intermediate stage, and the charge storage device is located at an intermediate stage as the position information. Is set as the second position information indicating
When only the command input unit is in the connected state, sets the determined charging storage device is located in the last stage, the third position information indicating that the charging storage device is located in the final stage as the position information The charging control system according to claim 2, wherein
  The controller switches an output terminal of the switch to the first output terminal when the stored object to be charged is not in a charging completed state and the position information is set to the first position information. The charging control system according to claim 3, wherein:   The controller is configured to input the charging start command to the command input unit when the stored charged object is not in the charging completed state and the position information is set to the second or third position information. The charging control system according to claim 3, wherein when the switch is turned on, the output terminal of the switch is switched to the first output terminal.   The charging device according to claim 3, wherein the controller switches an output terminal of the switch to the second output terminal when receiving the charging completion information from the charging state management unit. Control system.   7. The controller according to claim 6, wherein the controller generates the charge start command and outputs the charge start command from the command output unit when the position information is set to the first or second position information. Charge control system.

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