JP2015106239A - Security system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a security system capable of ensuring security and achieving the convenience of a user.SOLUTION: A security system 10 installed in a power supply device 1 includes: security means 11 for validating a security function; security function invalidation means 12 for invalidating the security function in a release time zone preliminarily set by a user; and acceptance prohibition means 14 for, when the number of times of a specific input operation performed by an input operation acceptance part 3 exceeds a preliminarily set number of times, prohibiting the input operation acceptance part 3 from accepting input information until predetermined conditions are satisfied, therein the input information is not newly stored in a storage part 4 in a time zone when the acceptance of the input information is prohibited, and charging and power feeding may be neither started nor stopped under the control of a command operation execution part 6, and charging and power feeding may be started and stopped under the control of a reservation operation execution part 5.

Description

  The present invention relates to a security system, and more particularly, to a security system provided in a power supply device that charges a power storage unit and supplies power to a load.

  An example of a power supply device that charges the power storage means and supplies power to a load is the power supply device described in Patent Document 1. This power supply device converts the grid power supplied from the grid to DC power and charges the battery mounted on the electric vehicle with the DC power, while converting the discharge power of the battery to AC power, Power is supplied to the load by electric power.

  In general, since a power supply device connected to a battery mounted on an electric vehicle is installed outdoors, it may be used without permission by a person other than a regular user. For this reason, the conventional power supply device requires a user to input a password (for example, a four-digit number), and only when the input password matches a preset password, other than the password input operation A security system is provided that performs a security function such as accepting an input operation.

JP 2012-70536 A

  However, the conventional security system can prevent unauthorized use by anyone other than a legitimate user, but the legitimate user must perform a password input operation every time the power supply device is used. Convenience was impaired.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a security system capable of ensuring both security and user convenience.

  In order to solve the above problems, the security system according to the present invention (1) converts the grid power supplied from the grid to DC power and charges the storage battery with the DC power, while the discharge power of the battery is AC A power conversion unit that converts power into power and supplies power to the load with the AC power, an input operation reception unit that receives input information according to a user's input operation, and at least a reservation for charging and power supply reservation among the input information A storage unit that stores information and security information related to a security function using a password, and the storage unit is referred to, charging is performed in a reserved time zone for charging included in the reservation information, and power supply included in the reservation information is included. Based on a reservation operation execution unit that controls the power conversion unit so that power is supplied during the reservation time period, and command information related to the start of charging in the input information Charging is started immediately, charging is immediately stopped based on command information related to stopping charging in the input information, power feeding is started immediately based on command information related to starting power feeding in the input information, and power feeding is included in input information. And a command operation execution unit that controls the power conversion unit so that power supply is immediately stopped based on command information related to the stop of the power supply, and a security system provided in the power supply device, the security system enabling the security function A security function disabling means for disabling the security function and a specific input operation among the input operations performed in the input operation accepting unit, with reference to the means and the storage unit, during the security function release time zone included in the security information. If the number of times exceeds the preset number of times, it is entered until a predetermined condition is met. And a reception prohibition means for prohibiting the reception of input information by the operation reception unit, and the input information is not newly stored in the storage unit during the time period in which the reception of input information is prohibited, and the command Charging and power feeding cannot be started and stopped under the control of the operation execution unit, respectively, while charging and power feeding can be started and stopped under the control of the reservation operation execution unit, respectively.

  According to this configuration, since the security function is invalidated by the security function invalidating means during the release time period, the user can use the power supply device without performing a password input operation, while other than the release time period. During the time period, the security function is effective, so that it is possible to prevent unauthorized use of the power supply device by anyone other than the authorized user. That is, according to this configuration, both security and user convenience can be achieved.

  In addition, according to this configuration, the reception prohibition unit can prohibit the input operation reception by the input operation reception unit, so that even when the security function is disabled, the security level is higher than a certain level. Can be secured. Furthermore, according to this configuration, even during the cancellation time zone, charging and power feeding can be started and stopped under the control of the reservation operation execution unit, respectively, so that convenience for the user can be further improved.

  The security system of (1) above has (2) a counter that counts the number of times that a specific input operation has been performed only during the release time period and resets the number of counts every time a preset time elapses. The reception prohibiting means preferably sets the number of times counted by the counter as the number of times that a specific input operation has been performed.

  In the security system of (1) or (2) above, for example, (3) the cancellation time zone may be set for each date or day of the week.

  In the security systems (1) to (3) above, for example, (4) the security function invalidating unit invalidates the security function only for a part of the input operations performed in the input operation accepting unit. Can be configured to

  ADVANTAGE OF THE INVENTION According to this invention, the security system which can make security ensuring and user's convenience compatible can be provided.

It is a block diagram of an electric power supply device provided with the security system concerning the present invention. It is a flowchart which shows an example of operation | movement of the determination means in this invention. It is a flowchart which shows an example of operation | movement of the reception prohibition means in this invention. It is a flowchart which shows an example of operation | movement of the security means in this invention. It is a flowchart which shows the modification of operation | movement of the determination means in this invention.

  Hereinafter, a preferred embodiment of a security system according to the present invention will be described with reference to the accompanying drawings. In the following embodiments, the “storage battery” is a battery mounted on an electric vehicle and the “load” is a household load (electric appliances, etc.) in a general household, but these are merely examples.

[Constitution]
FIG. 1 shows a power supply device 1 including a security system 10 according to an embodiment of the present invention. As shown in the figure, the security system 10 includes a power conversion unit 2, an input operation reception unit 3, a storage unit 4, a reservation operation execution unit 5, a command operation execution unit 6, and a clock unit 7. The electric power supply apparatus 1 is provided.

  The power conversion unit 2 converts system power (AC power, for example, 200 [VAC]) supplied from the system G into DC power (for example, 380 [VDC]), and is mounted on the electric vehicle by the DC power. While charging the battery B, the discharge power of the battery B is converted into AC power equivalent to the system power (for example, 200 [VAC]), and the home load L is supplied with the AC power. .

  The input operation accepting unit 3 is operable by the user, and is configured to accept input information corresponding to the user's input operation. Specifically, the input operation reception unit 3 includes a command unit that detects a user's input operation and outputs input information corresponding to the detected input operation. The input operation accepting unit 3 further includes a display unit for displaying the operation state of the power supply device 1 and the current time. In the present embodiment, a touch panel (operation panel) that is a command unit that also serves as a display unit is employed as the input operation reception unit 3.

  On the screen of the input operation reception unit 3, buttons relating to the current operation state (charging, power feeding, standby) of the power supply device 1, the current date and time, and various commands are displayed. Buttons related to various commands include a button for starting charging, a button for stopping charging, a button for starting power feeding, a button for stopping power feeding, and a reservation for charging (timer charging setting). Button for making a power supply reservation (timer power supply setting), a button for displaying charging power amount and power supply power amount, a button for setting a security function to be described later, and a system setting for power setting There are buttons. When one of these buttons is pressed by the user, the input operation receiving unit 3 detects the pressed button and outputs a command corresponding to the button as input information.

  The storage unit 4 is composed of a nonvolatile memory. The storage unit 4 stores at least information regarding security functions (security information), information regarding system settings of the power supply apparatus 1, and information regarding reservations for charging and power supply (reservation information) among the input information.

  The reservation operation execution unit 5 includes a microcomputer and the like. Based on reservation information read from the storage unit 4 and information corresponding to the current time received from the clock unit 7, charging (timer charging) and power supply (timer charging) of the power conversion unit 2 are performed. (Timer power supply) is controlled. More specifically, when the reservation information related to the timer charging reservation is stored in the storage unit 4, the reservation operation execution unit 5 automatically starts charging when the current time reaches the charge start time included in the reservation information, When the current time reaches the charging stop time included in the reservation information, the power conversion unit 2 is controlled so as to automatically stop charging. On the other hand, when reservation information related to timer power supply reservation is stored in the storage unit 4, the reservation operation execution unit 5 automatically starts power supply when the current time reaches the power supply start time included in the reservation information, and the current time When the power supply stop time included in the reservation information is reached, the power conversion unit 2 is controlled to automatically stop the power supply.

  The command operation execution unit 6 is composed of a microcomputer or the like, and controls charging and power feeding of the power conversion unit 2 based on input information (command information) received by the input operation reception unit 3. More specifically, the command operation execution unit 6 immediately starts charging based on command information related to charging start in the input information, immediately stops charging based on command information related to charging stop in the input information, The power conversion unit 2 is controlled so that power supply is immediately started based on the command information regarding the start of power supply, and power supply is immediately stopped based on the command information regarding the power supply stop among the input information.

  The clock unit 7 outputs information corresponding to the current date and time to the reservation operation execution unit 5 and the security system 10 in response to requests from the reservation operation execution unit 5 and the security system 10. Further, the clock unit 7 updates the date and time displayed on the screen of the input operation receiving unit 3 at regular time intervals (for example, at 100 ms intervals).

  The security system 10 includes a microcomputer or the like, and includes security means 11, security function invalidation means 12, determination means 13, and reception prohibition means 14.

  The security unit 11 displays a password input screen for inputting a password (for example, a 4-digit number) on the input operation reception unit 3 and requests the user to input a password. When the password input operation is performed by the user, the security unit 11 collates the password received by the input operation receiving unit 3 with a preset password (factory default or password set by the user). If the password accepted by the input operation accepting unit 3 matches the preset password, the security means 11 changes the password entry screen to the original screen (for example, a screen on which buttons related to various commands are displayed). Since switching is performed, the input operation accepting unit 3 can accept input information other than the password. On the other hand, if the password received by the input operation receiving unit 3 and the preset password do not match, the security means 11 causes the input operation receiving unit 3 to display the password input screen again. Cannot accept input information other than passwords.

  The user can appropriately set the timing at which the security means 11 displays the password input screen on the input operation accepting unit 3. For example, the password input screen may be set to be displayed each time a button related to various commands displayed on the input operation receiving unit 3 is pressed, or when there is no input operation for a certain period of time. When the computer enters the sleep state, the password input screen may be displayed when returning from the sleep state.

  The security function invalidation unit 12 invalidates the security function of the security unit 11 during a release time period preset by the user. More specifically, as a step before the security function invalidating unit 12 invalidates the security function, the user can cancel the security function on the security setting screen displayed on the input operation accepting unit 3 in the release time zone ( For example, a time zone in which the power supply device 1 is used on a daily basis is set. Information regarding the set release time zone is stored in the storage unit 4 as security information. Then, the security function invalidating means 12 receives information corresponding to the current time from the clock unit 7 at regular time intervals, reads security information (information on the cancellation time zone) from the storage unit 4, and the current time is included in the cancellation time zone. If this is the case, disable the security function. Thereby, the password input screen is not displayed on the input operation reception unit 3 during the release time period.

  The user can set a plurality of time zones as the release time zone. For example, when the release time zone stored in the storage unit 4 is a time zone of 7 o'clock to 8 o'clock and a time zone of 20 o'clock to 21 o'clock, the user can set the time zone of 7 o'clock to 8 o'clock and 20 o'clock to 21 o'clock. The power supply apparatus 1 can be used without performing a password input operation during the time period.

  Further, the security function invalidating unit 12 can invalidate the security function only for a part of the input operations performed in the input operation accepting unit 3. When disabling the security function only for a part of the input operations, the user performs an input operation (the above part of the input) that is a target for disabling the security function on the security setting screen displayed on the input operation reception unit 3. Operation) must be set in advance. The information related to the set part of the input operation is stored in the storage unit 4 together with the information related to the release time zone. The security function invalidating unit 12 receives information corresponding to the current time from the clock unit 7 at regular time intervals, reads the information related to the release time zone and the part of the input operation from the storage unit 4, and the current time is the release time. If it is included in the band and the input operation performed in the input operation receiving unit 3 is included in the partial input operation, the security function is invalidated. In other words, even if the current time is included in the release time zone, the security function is disabled if the input operation performed in the input operation reception unit 3 is different from the part of the input operations. First, a password input screen is displayed on the input operation reception unit 3.

  Further, the security function invalidating unit 12 can set an input operation for invalidating the security function for each cancellation time zone. For example, the security function invalidating means 12 disables the security function only for the input operation related to charging in the release time zone from 7 o'clock to 8 o'clock, and performs the input operation related to charging and power supply in the release time zone from 20:00 to 21:00 On the other hand, the security function can be disabled.

  The determination unit 13 determines whether or not the reception prohibition unit 14 performs the reception prohibition process. Although details will be described later, the determination unit 13 determines whether or not the number of times that a specific input operation has been performed among the input operations performed in the input operation reception unit 3 has exceeded a preset number of times (for example, 5 times). At least this determination is made. The number of times that a specific input operation has been performed is measured by a counter (not shown). The counter resets the counted number every time a preset time (for example, 3 minutes) elapses. As a step before the determination unit 13 makes the above determination, the user sets which input operation is a specific input operation and how many times the setting is performed on the security setting screen displayed on the input operation receiving unit 3. It is necessary to set such as. Security information regarding these settings is stored in the storage unit 4.

  The reception prohibition means 14 is a preset number of times when the determination means 13 determines that the reception prohibition means 14 performs the reception prohibition process, that is, the number of times that a specific input operation has been performed (the number of times counted by the counter). When exceeding (for example, 5 times), the reception prohibition process for prohibiting the input operation reception unit 3 from receiving the input information is performed until a predetermined condition is satisfied. In the present embodiment, the reception prohibition means 14 has an operation prohibition timer that starts decreasing the holding time simultaneously with the start of the reception prohibition process, and the time until the operation prohibition timer becomes zero (for example, 10 minutes) Prohibition processing is performed.

  While the reception prohibition process is being performed by the reception prohibition unit 14, the input operation reception unit 3 does not detect the user's input operation, or the input corresponding to the input operation is detected even if the user's input operation is detected. No information is output.

  In addition, when the reception prohibition process is performed by the reception prohibition unit 14, since the input operation reception unit 3 does not accept any input information as described above, charging and power feeding are performed under the control of the command operation execution unit 6. Is started, charging and power supply are stopped under the control of the command operation execution unit 6, and new input information such as reservation information, security information, and information regarding system settings of the power supply device 1 is stored in the storage unit 4. It is not stored. However, even when the reception prohibition process is performed, if the reservation information is stored in the storage unit 4 in advance, the reservation operation execution unit 5 performs the reservation operation in the reservation time zone included in the reservation information. Charging and feeding are performed under control.

  Eventually, in the security system 10 according to the present embodiment, the security function is disabled by the security function invalidating unit 12 during a preset release time period (for example, a time period when the user uses the power supply apparatus 1 on a daily basis). As a result, the user can use the power supply device 1 without performing a password input operation. On the other hand, the security function is effective in a time zone other than the release time zone. It is possible to prevent the power supply device 1 from being used without permission. That is, according to the security system 10 according to the present embodiment, both security and user convenience can be achieved.

  Further, in the security system 10 according to the present embodiment, when the number of times that a specific input operation has been performed exceeds the set number of times, it is possible to prohibit the input operation reception unit 3 from accepting input information. Even in the release time zone in which is disabled, a certain level of security can be ensured. Furthermore, in the security system 10 according to the present embodiment, when reservation information is stored in the storage unit 4 in advance, charging and power feeding are performed under the control of the reservation operation execution unit 5 even during the release time zone. , User convenience can be further improved.

[Operations of judgment means and reception prohibition means]
Next, operations of the determination unit 13 and the reception prohibition unit 14 will be described with reference to FIGS. 2 and 3. In the following description, information equivalent to “input operation other than start of charging is a specific input operation” as information relating to a specific input operation and “setting number being 5” as information relating to the number of times set. Is stored in the storage unit 4.

(Pattern 1)
When the power supply device 1 is turned on and the security system 10 is activated, the determination unit 13 includes at least information related to a specific input operation, information related to the set number of times, and release of the input information stored in the storage unit 4. Information related to the time zone is read, and information related to the operation flag is read from the input operation reception unit 3, and information related to the current time is acquired from the clock unit 7 (step S01).

  The information related to the operation flag is information related to the input operation performed in the input operation reception unit 3, and is information for identifying the input operation. For example, the operation flag = 0 when no input operation is performed, the operation flag = 1 when the charging start input operation is performed, and the operation flag = 2 when the power feeding start input operation is performed. When the timer charging reservation input operation is performed, the operation flag is set to 3.

  Thereafter, the determination unit 13 performs a first determination as to whether or not the release time zone is set based on the information about the release time zone read from the storage unit 4 in step S01 (step S02).

  In the first determination, when it is determined that the release time zone is set (YES in step S02), the determination unit 13 includes the current time acquired from the clock unit 7 in step S01 in the release time zone. A second determination of whether or not is made (step S03).

  In the second determination, when it is determined that the current time is included in the release time zone (YES in step S03), the determination unit 13 receives information and input related to the specific input operation read from the storage unit 4 in step S01. Based on the information regarding the operation flag read from the operation reception unit 3, a third determination is made as to whether or not a specific input operation has been performed (step S04). In this embodiment, since the input operation other than the charge start is a specific input operation, when no input operation is performed or when the charge start input operation is performed, in other words, the read operation flag is In the case of 0 or 1, the determination unit 13 determines that a specific input operation has not been performed (NO in step S04). On the other hand, when an input operation other than the start of charging is performed, in other words, when the read operation flag is other than 0 or 1, the determination unit 13 determines that a specific input operation has been performed (YES in step S04). .

  In the third determination, when it is determined that a specific input operation has not been performed (NO in step S04), the determination unit 13 sets the password establishment flag to 1 (step S05). Information regarding the password establishment flag is stored in the storage unit 4.

  Thereafter, the determination unit 13 again reads at least information related to a specific input operation, information related to the set number of times, and information related to a release time zone, among the input information stored in the storage unit 4, and operates from the input operation reception unit 3. Information related to the flag is read and the current time is acquired from the clock unit 7 (step S01). In the case of pattern 1 (via step S05), it takes about 100 ms after the process of step S01 is performed until the process of step S01 is performed again.

(Pattern 2)
In the first determination, when it is determined that the release time zone is not set (NO in step S02), or in the second determination, it is determined that the current time is not included in the release time zone (step S03). NO), the determination means 13 is a setting in which the number of times that a specific input operation has been performed (count of the counter) is preset based on the number of counters and information on the number of settings read from the storage unit 4 in step S01. A fourth determination is made as to whether it is within the number of times (five times) (step S07).

  If it is determined in the third determination that a specific input operation has been performed (YES in step S04), the determination unit 13 adds the count number of the counter by 1 (step S06), and then determines the fourth determination. Perform (step S07). The number of counters is reset every time a preset time (3 minutes in the present embodiment) elapses.

  In the fourth determination, when it is determined that the number of times that the specific input operation has been performed is within 5 (YES in step S07), the determination unit 13 sets the password establishment flag to 0 (step S08). Information regarding the password establishment flag is stored in the storage unit 4.

  Thereafter, the determination unit 13 again reads at least information related to a specific input operation, information related to the set number of times, and information related to a release time zone, among the input information stored in the storage unit 4, and operates from the input operation reception unit 3. Information related to the flag is read and the current time is acquired from the clock unit 7 (step S01). In the case of pattern 2 (via step S08), it takes about 100 ms from the process of step S01 until the process of step S01 is performed again, as in the case of pattern 1.

(Pattern 3)
In the fourth determination, when it is determined that the number of times that the specific input operation has been performed exceeds 5 (NO in step S07), the determination unit 13 causes the reception prohibition unit 14 to perform a reception prohibition process ( Step S09).

  Specifically, as shown in FIG. 3, the reception prohibition unit 14 reads out information related to the holding time (10 minutes in the present embodiment) of the operation prohibition timer stored in advance in the storage unit 4 (step S <b> 10). Then, the holding time of the operation prohibition timer is set to 10 minutes, and the reception prohibition process is started (step S11). When the acceptance prohibition process is started, the time of the operation prohibition timer starts to decrease.

  When the duration of the operation prohibition timer becomes zero or less (YES in step S12), the reception prohibition unit 14 cancels the reception prohibition process (step S13). In the present embodiment, while the holding time of the operation prohibition timer is set to 10 minutes, the time until the count of the counter is reset is set to 3 minutes, so that the reception prohibition process is canceled The counter count is zero.

  When the acceptance prohibition process is canceled in step S13, the determination unit 13 again obtains at least information regarding a specific input operation, information regarding the set number of times, and information regarding a cancellation time period among the input information stored in the storage unit 4. The information related to the operation flag is read out from the input operation receiving unit 3 and the current time is acquired from the clock unit 7 (step S01). In the case of pattern 3 (when passing through step S09), it takes about 10 minutes after the process of step S01 is performed until the process of step S01 is performed again.

[Operation of security measures]
Next, the operation of the security unit 11 will be described with reference to FIG. In the following description, it is assumed that the security function invalidating unit 12 invalidates the security function only for the “charging start input operation” among the input operations performed in the input operation receiving unit 3.

  When a button related to various commands displayed on the input operation accepting unit 3 is pressed, the security unit 11 reads information on the password establishment flag stored in the storage unit 4 in step S05 or step S08 (step S14). Note that the password establishment flag is set after the determination means 13 reads the information on the operation flag (step S01) during the time from when the buttons related to various commands are pressed until the security means 11 reads the information about the password establishment flag (step S01). The operation timing of the security means 11 is set so that a series of processing up to step S05 or step S08) is performed only once.

  Thereafter, the security means 11 determines whether or not the password establishment flag is set to 1 based on the information regarding the password establishment flag read in step S14 (step S15). In this embodiment, since the input operation other than the start of charging is set as “specific input operation”, when the button related to charging start among the buttons related to various commands displayed on the input operation receiving unit 3 is pressed, a password is set. The establishment flag is set to 1, and the password establishment flag is set to 0 when a button other than the button related to the start of charging is pressed.

  When the password establishment flag is set to 1 (YES in step S15), that is, when a button related to charging is pressed, the security unit 11 does not display the password input screen on the input operation reception unit 3. Thereby, the input operation reception part 3 can receive the input information corresponding to the button regarding the charge start, and as a result, the charging by the power conversion part 2 is started under the control of the command operation execution part 6.

  On the other hand, when the password establishment flag is set to 0 (NO in step S15), that is, when a button other than the button related to charging is pressed, the security means 11 causes the input operation reception unit 3 to enter a password (for example, A password input screen for inputting a four-digit number) is displayed, and a password input operation is requested to the user (step S16).

  When the password input operation is performed by the user, the security unit 11 determines whether the password received by the input operation receiving unit 3 matches a preset password (factory default or password set by the user). Is determined (step S17).

  If the password accepted by the input operation accepting unit 3 does not match the preset password (NO in step S17), the security means 11 causes the input operation accepting unit 3 to display the password input screen again, and the user Is requested again for a password input operation (step S16). On the other hand, when the password received by the input operation reception unit 3 matches the preset password (YES in step S17), the security unit 11 does not cause the input operation reception unit 3 to redisplay the password input screen. Thereby, the input operation reception part 3 can receive the input information corresponding to the button pressed by the user.

  The preferred embodiment of the security system according to the present invention has been described above, but the present invention is not limited to the above embodiment.

  For example, the security unit 11 can be configured so that the user can set whether to enable or disable the security function in the input operation reception unit 3. When this configuration is adopted, the security means 11, the security function invalidation means 12, the determination means 13, and the reception prohibition means 14 operate only while the security function is set to be valid.

  When the release time zone is stored in the storage unit 4 for each date or day of the week, the security function invalidating unit 12 refers to the storage unit 4 and invalidates the security function in the release time zone corresponding to the current date or day of the week. Can be configured to. When this configuration is adopted, the determination unit 13 obtains the current time and the current date or day of the week from the clock unit 7, and the current time is included in the release time zone corresponding to the current date or day of the week in step S03. It is determined whether or not there is. According to this configuration, it is possible to set the release time zone according to the user's life rhythm (for example, the working hours of normal sunrise and the time to go out on holidays), which further improves user convenience Can do.

  If the determination unit 13 can determine whether or not the reception prohibition unit 14 performs the reception prohibition process, that is, the number of times that the specific input operation has been performed exceeds the preset number of times. As long as it can be determined at least whether or not, it can be appropriately configured. For example, as shown in FIG. 5, the determination in step S04 can be performed before the determination in steps S02 and S03. According to this configuration, the number of times that a specific input operation has been performed can be counted and the reception prohibition process by the reception prohibition means 14 can be performed regardless of whether or not the current time is in the release time zone. Can be increased.

  Moreover, the determination means 13 can also be set as the structure which abbreviate | omitted determination of step S02, or the structure which added determinations other than the determination of steps S02-S04. Further, when information related to an input operation other than a specific input operation is stored as security information in the storage unit 4, the determination unit 13 is based on information related to an input operation other than the specific input operation stored in the storage unit 4. Thus, the determination in step S04 is performed.

  Further, the reservation operation execution unit 5, the command operation execution unit 6, and the security system 10 can be configured by a single microcomputer.

DESCRIPTION OF SYMBOLS 1 Power supply device 2 Power conversion part 3 Input operation reception part 4 Storage part 5 Reserved operation execution part 6 Command operation execution part 7 Clock part 10 Security system 11 Security means 12 Security function invalidation means 13 Determination means 14 Acceptance prohibition means

Claims (4)

A power converter that converts system power supplied from the system into DC power and charges the storage battery with the DC power, while converting the discharge power of the storage battery into AC power and supplies power to the load with the AC power When,
An input operation accepting unit that accepts input information according to the user's input operation;
A storage unit that stores at least reservation information related to the charging and power supply reservation, and security information related to a security function using a password, among the input information;
With reference to the storage unit, the power conversion is performed such that the charging is performed in the charging reservation time zone included in the reservation information, and the power feeding is performed in the power feeding reservation time zone included in the reservation information. A reservation operation execution unit for controlling the unit,
The charging is immediately started based on the command information regarding the start of charging among the input information, the charging is immediately stopped based on the command information regarding the stopping of charging among the input information, and the input information includes the Command operation for controlling the power conversion unit so that the power supply is immediately started based on the command information related to the start of power supply, and the power supply is immediately stopped based on the command information related to the stop of the power supply among the input information. The execution part;
A security system provided in a power supply device including:
Security means for enabling the security function;
Security function invalidating means for invalidating the security function during the release period of the security function included in the security information with reference to the storage unit;
The input by the input operation reception unit until a predetermined condition is satisfied when the number of times that a specific input operation is performed among the input operations performed in the input operation reception unit exceeds a preset number of times. A reception prohibition means for prohibiting reception of information;
Have
In the time period when the acceptance of the input information is prohibited, the input information is not newly stored in the storage unit, and the charging and the feeding are started and controlled under the control of the command operation execution unit, respectively. While not being able to be stopped, the charging and the power feeding can be started and stopped under the control of the reservation operation execution unit, respectively. Having a counter that counts the number of times that the specific input operation has been performed only during the release time period, and resets the number of times counted every time a preset time has elapsed,
The reception prohibition means sets the number of times the specific input operation is performed as the number of times the counter has counted.
The security system according to claim 1.   The security system according to claim 1 or 2, wherein the release time zone is set for each date or day of the week.   The security function invalidating unit invalidates the security function only for a part of input operations performed in the input operation accepting unit. The security system described in the section.

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