JP2013251957A - Power supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow at least one or more designated apparatuses to be operated for operation guarantee time during power interruption of a main power supply.SOLUTION: According to an apparatus controller configured to control power supply to a group of apparatuses, during power interruption of a main power supply, a plurality of designated apparatuses calculate surplus power from a difference between operation guarantee power consumed during operation guarantee time and a standby power source residual amount. When the surplus power is larger than zero, power from a standby power source is supplied to the plurality of designated apparatuses during the operation guarantee time. When the surplus power is zero or less, the power from the standby power source is supplied during the operation guarantee time to a smaller number of the designated apparatuses than when the surplus power is larger than zero.

Description

  The present invention relates to a power supply system that has a main power source and a backup power source such as a storage battery, and supplies power from the backup power source to a power supply target device when the main power source fails.

  An electric power supply system including a storage battery as a component has been proposed for the purpose of securing electric power supplied to electric power consumers in the event of a power failure when supply of commercial electric power from an electric power company is stopped due to a disaster or the like.

  The available time of the storage battery varies depending on the usage status of the electrical equipment in the house. For this reason, when a storage battery is used as a power source for an electrical device that consumes a large amount of power during a power failure, depending on the decrease in the capacity of the storage battery, the power of the storage battery is supplied to the electrical device before the main power source recovers from the power failure. It may not be possible.

  Therefore, priority is given to electrical devices in the home, and high-priority electrical devices are preferentially operated for a long time by stopping low-priority electrical devices in stages as the remaining battery level decreases. There has been proposed a system (see Patent Document 1). In addition, for each electrical device, the power supply priority in the event of a power failure is set in advance, and when a power failure is detected, the power supply time to each electrical device is set longer as the priority is higher. In the process of supplying the power of the power storage device to each electrical device and the power supply time elapses based on the detection of a power failure, the power supply to the electrical device with a low priority of the power supply time is cut off and the priority is high A technique for ensuring the operation time of an electric device has been proposed (see Patent Document 2).

JP 2009-148209 A JP 2011-83088 A

  In the technique described in Patent Document 1, the remaining battery level is monitored, an electrical device having a lower priority is selected as the remaining battery level is decreased, and the operation of the selected electrical device is stopped in order. The operating time of high electrical equipment can be extended. However, it does not guarantee the operating time itself of high-priority electrical equipment, and even if the low-priority electrical equipment is stopped in stages, the main power The remaining amount may be exhausted.

  In the technique described in Patent Document 2, the power supply time to the electric device is measured by the timer, and when the timer measurement time has passed the power supply time, the supply of electric power to the electric device is interrupted. The power supply time to the electric device is set shorter as the low priority device. For this reason, low-priority electrical devices are cut off from power supply earlier than high-priority electrical devices, so the power of the storage battery can be saved, and the power supply time for high-priority electrical devices can be extended accordingly. Become. However, power consumption for each electrical device is not taken into account, and the supply time to the electrical device is determined according to the remaining amount of the storage battery. Depending on the remaining capacity of the storage battery, the operating time cannot be guaranteed.

  In addition, when the method of voluntarily restricting the use of electrical equipment by the user is applied to Patent Document 1 and Patent Document 2, the main power source may leave a large amount of remaining battery power until power is restored from a power failure. Conceivable. However, this method is inconvenient for the user because the use of the electric device is restricted even if the user wants to use the electric device.

  The present invention has been made in view of the above-described problems, and its purpose is to operate at least one or more designated devices during an operation guarantee time corresponding to a power failure time of the main power supply during a power failure of the main power supply. An object of the present invention is to provide a power supply system capable of performing the above.

  In order to solve the above-mentioned problems, the present invention provides a plurality of designated devices that are designated as devices whose operation is guaranteed even when the main power supply is interrupted, corresponding to the power failure time of the main power supply. The surplus power is calculated from the difference between the guaranteed operation power consumed during the guaranteed operation time and the remaining standby power indicating the remaining power of the standby power.If the surplus power is larger than the set value, the operation guaranteed time During the operation, when the power from the standby power supply is supplied to the plurality of designated devices and the surplus power is equal to or less than the set value, the surplus power is larger than the set value during the operation guarantee time. The power from the standby power supply is supplied to a specified device that is less than the case.

  According to the present invention, at the time of a power failure of the main power supply, at least one or more designated devices can be operated for an operation guarantee time corresponding to the power failure time of the main power supply.

1 is an overall configuration diagram showing a first embodiment of a power supply system. It is a block diagram of an electric power supply apparatus. It is a block diagram of an apparatus control apparatus. It is a block diagram of an electric energy storage part. It is a block diagram of an apparatus database. It is a block diagram of a remaining amount memory | storage part. It is a flowchart for demonstrating the method of guaranteeing operation | movement of a specific apparatus at the time of a power failure. It is a whole block diagram which shows 2nd Example of an electric power supply system. It is a block diagram of the electric energy storage part in 2nd Example. It is a block diagram of the apparatus database in 2nd Example. It is a block diagram of the residual amount memory | storage part in 2nd Example. It is a block diagram of the remaining amount memory | storage part after 1 hour progress from a power failure.

(First embodiment)
Hereinafter, a first embodiment of a power supply system according to the present invention will be described with reference to the drawings.
(overall structure)

  FIG. 1 is an overall configuration diagram showing a first embodiment of a power supply system. In FIG. 1, the power supply system includes a power failure time notification device 100, devices (device 1, device 2, device N) 300, 301, 302, a device control device 200 that controls each device, and power to each device. It is comprised from the electric power supply apparatus 400 to supply. The power failure time notification device 100 and the device control device 200 are connected via a communication channel 500, and the device control device 200, each of the devices 300 to 302 and the power supply device 400 are used as a power supply channel and a communication channel 600. Connected through.

  The power failure time notification device 100 is installed in, for example, an electric power company, and when the power consumption in the electric power company jurisdiction is tight or when tightness is expected, the device control device 200 arranged in the electric power company jurisdiction is used. This is a device that notifies the scheduled time for power failure. As an example of the power failure time to be notified, for example, it is assumed that the power failure time is known from what time, such as “1 hour power failure is performed from 17:00 to 18:00”.

  The devices (device 1, device 2,..., Device N) 300 to 302 that constitute the device group are devices that actually consume power, and are used in homes, factories, hospitals, buildings, and the like, for example. Such as lighting equipment, air conditioners, and televisions. Each device 300 to 302 is controlled by the device control device 200 to be in a state such as power ON / OFF. In addition, the devices 300 to 302 have a function of periodically notifying the device control apparatus 200 of the power consumption amount of each device via the transmission path 600.

  The device control apparatus 200 is installed in each home, building, factory, etc., and acquires the time when the power failure is performed from the power failure time notification device 100 via the communication path 500 and also transmits the devices 300 to 300 via the transmission path 600. This is an apparatus that performs ON / OFF control of the power source 302 and collects the power consumption of each device 300 to 302 from the devices 300 to 302 via the transmission line 600. The power supply device 400 is a device that supplies power to the device control device 200 and the devices 300 to 302 via the transmission path 600. Note that the transmission path 600 is a power supply path and can also be used as a communication path. However, the transmission path 600 may be configured by dividing it into a communication path and a power supply path.

  FIG. 2 is a configuration diagram of the power supply apparatus. In FIG. 2, a power supply device 400 is a device that supplies power to the device control device 200 and the devices 300 to 302 via the transmission line 600, and a main power source 403 that uses power supplied from a power grid of a power company as a power source. The main power supply 403 includes a standby power supply 401 that backs up power supply in the event of a power failure, and a power failure detection / power switching unit 402.

  The standby power supply 403 is constituted by a secondary battery or a fuel cell charged from the main power supply 403, and supplies power to the device control apparatus 200 and the devices 300 to 302 when the main power supply 403 is powered off. When the main power supply 403 is normal, the power failure detection / power supply switching unit 402 uses the power supply source as the main power supply 403 and supplies the power of the main power supply 403 to the device control apparatus 200 and the devices 300 to 302, and the main power supply 403 is stopped. When a power failure is detected, the power supply source is switched from the main power supply 403 to the standby power supply 401, and the power of the standby power supply 401 is supplied to the device control apparatus 200 and the devices 300 to 302.

  FIG. 3 is a configuration diagram of the device control apparatus. In FIG. 3, the device control device 200 collects the power consumed by the devices 300 to 302, controls the devices 300 to 302, acquires the time when the power failure is performed from the power failure time notification device 100, and the power supply device. The remaining power of the standby power supply 401 in 400 is monitored. Moreover, the device control apparatus 200 is designated as a device designated by the user (hereinafter, the device whose operation is guaranteed even when the main power supply 403 is cut off) from the time when the power failure is performed and the power consumption of the devices 300 to 302. The amount of power required to operate the device during a power failure is calculated, and the amount of power is not designated by the user (hereinafter, may be referred to as non-designated device). Restrict usage from. As a result, it is avoided that the device designated by the user is stopped due to a shortage of the remaining amount of the standby power supply 401 before the power is restored from the power failure.

  The device control device 200 is a computer device including, for example, a CPU (Central Processing Unit), a memory, an input / output interface, and the like, and includes a power collection function unit 210, a device control function unit 220, and a remaining amount monitoring function unit 230. And a power failure time receiving unit 240. The power collection function unit 210 includes a power collection unit 211 and a power amount storage unit 212. The power collection unit 211 collects information such as the amount of power consumption from the devices 300 to 302 via the transmission line 600 and records the collected information in the power amount storage unit 21.

  The device control function unit 220 includes a device control unit 221 and a device database 222. The device control unit 221 performs ON / OFF control of the power of the devices 300 to 302 via the transmission path 600 based on information stored in the device database 222. The device database 222 stores a control method for controlling the devices 300 to 302, information for managing the devices 300 to 302, and the like.

  The remaining amount monitoring function unit 230 includes a remaining amount monitoring unit 231 and a remaining amount storage unit 232. The remaining amount monitoring unit 231 obtains the function of monitoring the remaining amount of the standby power supply 401 and the time when the power failure is performed from the power failure time receiving unit 240 and records it in the device database 222 in the device control function unit 220. The operation guarantee state 803 calculates the amount of electric power (hereinafter sometimes referred to as operation guarantee power) for keeping the device (designated device) that is ON during the power failure, and the calculation result is stored in the remaining amount storage unit 232. Has the function of recording.

  The average power consumption 701 recorded in the power amount storage unit 212 in the power collection function unit 210 is used to calculate the guaranteed operation power. At this time, if the guaranteed operation power is calculated using the maximum power consumption 702, the operation of the device can be guaranteed more reliably than when the average power consumption 701 is used.

  Further, the remaining amount monitoring unit 231 determines the amount of power (hereinafter, surplus power) that can be used even in a device whose operation guarantee state 803 is OFF (non-designated device) from the difference between the remaining amount of the standby power supply 401 and the operation guaranteed power. It has a function of calculating and recording the calculation result in the remaining amount storage unit 232.

  The power failure time receiving unit 240 has a function of acquiring, from the power failure time notification device 100, the time when the power failure is performed via the communication path 500. At this time, the power failure time receiving unit 240 has a user interface, assuming a sudden power failure in which the power failure time is not distributed from the power failure time notification device 100, and the time of the time when the power failure is performed from the user. It has a function to accept input. For a sudden power failure, the user designates a time during which a recovery from the power failure is expected and a time during which the operation assurance state 803 is desired to be used during a power failure. As an example of the input time, it is assumed that the operation guarantee state 803 designates how many hours it is desired to operate an ON device during a power failure, such as “3 hours from the start of a power failure”.

  FIG. 4 is a configuration diagram of the electric energy storage unit. In FIG. 4, the power amount storage unit 212 is a table for managing information related to the power consumption of each device 300 to 302, and includes a device name 700 for identifying each device 300 to 302 and a device 300 to 302. The average power consumption 701 consumed by the device 300 and the maximum power consumption 702 consumed by the devices 300 to 302 are configured.

  FIG. 5 is a configuration diagram of the device database. In FIG. 5, a device database 222 is a table for managing information for controlling each device 300 to 302, and a device name for identifying the devices 300 to 302 connected to the device control apparatus 200. 800, a control method 801 for controlling the devices 300 to 302, a device state 802 for managing the power ON / OFF state of the devices 300 to 302, and an operation guarantee state of the devices 300 to 302 Operation guarantee state 803, and priority 804 for managing the priorities of the devices 300 to 302.

  The operation guarantee state 803 designates whether or not to operate the device from the start of power failure to recovery. The priority 804 is related to the remaining amount of the standby power supply 401 when the operation guarantee power described later cannot be secured sufficiently, and is used when the operation guarantee state 803 stops the devices set to ON step by step. . The priority 804 has a higher priority as the value indicating the level of power supply is lower, and has a lower priority as the value is higher. The priority 804 is stopped first from the low priority device. For example, the device with the priority “3” is stopped before the device with the priority “2”. It is assumed that the operation guarantee state 803 and the priority 804 are set from some user interface. The control method 801 is a method that enables control according to the target device including ON / OFF of the power supply of the devices 300 to 302. For example, it is assumed that control can be performed remotely using infrared rays or the like.

  FIG. 6 is a configuration diagram of the remaining amount storage unit. In FIG. 6, the remaining amount storage unit 232 is a table for managing information related to the remaining amount of the standby power supply 401, and includes the remaining standby power supply 900, the operation guaranteed power 901, the surplus power 902, and the operation guaranteed time. 903.

  The standby power remaining amount 900 is a value acquired by the remaining amount monitoring unit 231 from the power supply apparatus 400 and is information indicating the remaining amount of the standby power supply 401. The operation guarantee power 901 is the amount of power calculated by the remaining amount monitoring unit 231 and is an amount of power for guaranteeing that the operation guarantee state 803 continues to operate the device whose power is on during the power failure. The surplus power 902 is a power amount calculated by the remaining amount monitoring unit 231, and is a power amount indicating a difference between the remaining amount of the standby power supply 401 and the operation guarantee power 901. The operation guarantee time 903 is a time for guaranteeing that the operation guarantee state 803 continues to operate the ON device. In the operation guarantee time 903, the time acquired by the remaining amount monitoring unit 231 from the power failure time receiving unit 240 (the time when the power failure is performed or the time when the device is to be operated during the power failure) is recorded as an initial value. . The value recorded in the operation guarantee time 903 is used when the remaining amount monitoring unit 231 calculates the operation guarantee power 901.

  Note that the value recorded in the operation guarantee time 903 decreases with the passage of time after the start of the power failure. Further, the values of the operation guarantee power 901 and the surplus power 902 are constantly updated according to the calculation result of the remaining amount monitoring unit 231. As the update means, for example, a polling function from the remaining power monitoring unit 231 to the standby power supply 401 or a notification function from the standby power supply 401 to the remaining power monitoring unit 231 can be used.

(How to guarantee the operation of a specific device during a power failure)
FIG. 7 is a flowchart for explaining a method of guaranteeing the operation of a specific device at the time of a power failure. This process is executed by the device control apparatus 200.

  First, when a power failure is detected by the power failure detection / power switching unit 402 of the power supply device 400 (step 1040), the remaining amount monitoring unit 231 of the device control device 200 is the time acquired from the power failure time receiving unit 240. When the power failure is performed (operation guarantee time 903), the device operation guarantee state 803 acquired from the device database 222, and the operation guarantee state 803 acquired from the power collection function unit 210 are ON (designated device). ), The operation guarantee power 901 for operating the device whose operation guarantee state 803 is ON (designated device) is calculated (step 1041).

  Next, the remaining amount monitoring unit 231 refers to the remaining amount storage unit 232 and calculates surplus power 902 from the difference between the standby power remaining amount 900 of the standby power source 401 and the operation guaranteed power 901 (step 1042). Then, the presence / absence of surplus power is determined (step 1043).

  If an affirmative determination result is obtained in step 1042, that is, if surplus power is greater than 0 and there is surplus power, all devices (devices including designated devices and non-designated devices) are operated with the power of the standby power supply 401. Therefore, the remaining amount monitoring unit 231 returns to Step 1041 and repeats the processing from Step 1041 to Step 1043. On the other hand, if a negative determination result is obtained in step 1042, that is, if the surplus power is smaller than 0 and there is no surplus power, all the devices cannot be operated with the power of the standby power supply 401. The unit 231 proceeds to a process for stopping a device whose operation guarantee state 803 is OFF (non-designated device) (step 1044). At this time, the device control unit 221 stops the device whose operation guarantee state 803 is OFF (non-designated device) based on the determination result of the remaining amount monitoring unit 231.

  Next, the remaining amount monitoring unit 231 calculates the operation guarantee power 901 for operating the devices (designated devices) of priority 1, 2, and 3 among the devices (designated devices) (step 1045). The guaranteed operation power 901 and the spare power remaining amount 900 are compared, and it is determined whether or not the spare power remaining amount 900 is equal to or greater than the guaranteed operation power 901 (step 1046).

  When a positive determination result is obtained in step 1046, that is, when the standby power remaining amount 900 is equal to or higher than the operation guarantee power 901 for operating the devices having the priorities 1, 2, and 3, the remaining amount monitoring unit 231 Returning to step 1045, the processing from step 1045 to step 1046 is repeated.

  On the other hand, if a negative determination result is obtained in step 1046, that is, if the standby power remaining amount 900 is less than the guaranteed operating power 901, the remaining amount monitoring unit 231 determines that the priority level 3 device, that is, the highest priority level A process for stopping the low-priced device is executed (step 1047). At this time, the device control unit 221 refers to the device database 222 based on the determination result of the remaining amount monitoring unit 231 and stops the device with the priority level 3.

  Next, the remaining amount monitoring unit 231 refers to the power amount storage unit 212, the device database 222, and the remaining amount storage unit 232, and calculates the operation guaranteed power of the devices with priority levels 1 and 2 (step 1048). The calculated operation guarantee power 901 and the spare power remaining amount 900 are compared, and it is determined whether or not the spare power remaining amount 900 is equal to or greater than the operation guarantee power 901 (step 1049).

  When a positive determination result is obtained in step 1049, that is, when the standby power remaining amount 900 is equal to or higher than the operation guarantee power 901 for operating the devices with the priorities 1 and 2, the remaining amount monitoring unit 231 performs step Returning to 1048, the processing of step 1048 to step 1049 is repeated.

  On the other hand, when a negative determination result is obtained in step 1049, that is, when the standby power remaining amount 900 is less than the guaranteed operating power 901, the remaining amount monitoring unit 231 determines that the priority level 2 device, that is, the priority level is set. Then, a process for stopping a device having a priority lower than 1 is executed (step 1050), and the process in this routine is terminated. At this time, the device control unit 221 refers to the device database 222 based on the determination result of the remaining amount monitoring unit 231, stops the device with priority 2 and continues the operation of the device with priority 1.

  With the above processing, when the operation guarantee state 803 during a power failure guarantees the operation of the device (designated device) set to ON, and there is surplus power 902, the operation guarantee state 803 is set to the ON device. As long as the operation can be guaranteed, a device whose operation guarantee state 803 is OFF (non-designated device) can also be used. In addition, even when the amount of power sufficient to operate all the devices (designated devices) whose operation guarantee state 803 is set to ON cannot be secured until the end of the power failure, it is preferentially long for devices with high priority. It can be operated.

  In the present embodiment, the remaining amount monitoring unit 231 includes a plurality of devices (designated devices) 300 and 301 among the device groups (device 1 to device N) that are power supply targets of the main power supply 403 or the standby power supply 401. It functions as an operation guarantee power calculation unit for calculating operation guarantee power consumed during operation guarantee time corresponding to the power failure time of the power supply 403 and also has a spare power supply remaining for detecting a spare power supply remaining amount indicating the remaining power of the standby power supply 401. Functions as a quantity detection unit. Furthermore, the remaining power monitoring unit 231 functions as a surplus power calculating unit that calculates surplus power from the difference between the remaining standby power supply and the guaranteed operating power when the main power supply 403 is powered down. The device control unit 221 functions as a power control unit that controls the supply of power to at least the plurality of designated devices 300 and 301 during the operation guarantee time during a power failure of the main power supply 403.

  At this time, when the surplus power is larger than a set value, for example, 0, the device control unit 221 supplies power from the standby power supply 401 to the plurality of designated devices 300 and 301, and the surplus power is 0 or less. In this case, the power from the standby power supply 40 is supplied to the designated device less than when the surplus power is greater than zero.

  When the surplus power is larger than 0, the device control unit 221 supplies power from the standby 401 power source to the device (non-designated device) 302 within the surplus power range, and the surplus power is 0 or less. The power supply from the standby power supply 401 to the device (non-designated device) 302 is stopped.

  In addition, the device control unit 221 manages a plurality of designated devices by associating the power supply order with priority levels based on the device database 222, and supplies power from the standby power supply 401 to the non-designated device 302. When the standby power remaining amount is larger than the guaranteed operation power after the stop, the supply of power from the standby power source 401 to the designated devices 300 and 301 is continued, and the reserved power remaining amount is smaller than the guaranteed operation power. The supply of power from the standby power supply 401 is stopped for the designated device 301 having the lowest priority among the designated devices.

  In addition, when the device control unit 221 determines whether the surplus power is larger than the set value, a value (positive integer) larger than 0 can be used as the set value. In this case, even if an error occurs in the guaranteed operating power obtained from the average power consumption, the presence or absence of surplus power can be accurately determined.

  Furthermore, since the operation guarantee power is recalculated in steps 1045 and 1048, even if the average power consumption of each device does not change constantly over time, the operation guarantee power is accurately adjusted as time passes. Can be calculated.

  According to this embodiment, at the time of a power failure of the main power supply 403, at least one device (designated device) can be operated for an operation guarantee time corresponding to the power failure time of the main power supply 403. That is, even when the power guarantee level 803 cannot ensure the amount of power enough to operate all the devices (designated devices) set to ON until the end of the power failure, the devices with high priority are preferentially long. It can be operated.

  Further, according to the present embodiment, when there is surplus power at the time of a power failure of the main power supply 403, the operation guarantee state 803 is within a range in which the operation guarantee state 803 can guarantee the operation of the ON device (designated device). Devices that are OFF (non-designated devices) can also be operated.

(Second embodiment)
FIG. 8 is an overall configuration diagram of the power supply system in the second embodiment. In FIG. 8, the power supply system in the present embodiment uses a security device 303, a lighting device 304, and a TV 305 as devices, and the other configuration is the same as that of the first embodiment.

  FIG. 9 is a configuration diagram of an electric energy storage unit in the second embodiment. In FIG. 9, the power storage unit 212 is a table for managing information related to power consumption of the security device 303, the lighting device 304, and the TV 305, and includes a device name 1000 for identifying each device 303 to 305, It comprises an average power consumption 1001 consumed by each device 303 to 305 and a maximum power consumption 1002 consumed by each device 303 to 305.

  In this embodiment, the security device 303, the lighting device 304, and the TV 305 consume 50 Wh, 200 Wh, and 200 Wh, respectively, on average.

  FIG. 10 is a configuration diagram of a device database in the second embodiment. In FIG. 10, a device database 222 is a table for managing information for controlling the devices 303 to 305 and the like, and a device name for identifying the devices 303 to 305 connected to the device control apparatus 200. 1010, a control method 1011 for controlling the devices 303 to 305, a device state 1012 for managing the power ON / OFF state of the devices 303 to 305, and an operation guarantee state of the devices 303 to 305. Operation guarantee state 1013.

  The control method 1011 is a method that can be controlled according to the target device including ON / OFF of the power source of the device. For example, it is assumed that the control method can be remotely controlled by infrared rays or the like. The operation guarantee state 1013 designates whether or not the device is to be operated from the start of power failure to recovery. For example, it is assumed that the operation guarantee state 1013 is set from some user interface.

  FIG. 11 is a configuration diagram of the remaining amount storage unit in the second embodiment. In FIG. 11, the remaining amount storage unit 232 is a table for managing information related to the remaining amount of the standby power supply 401, and includes a remaining standby power amount 1020, operation guaranteed power 1021, surplus power 1022, and operation guaranteed time. 1023.

  The spare power remaining amount 1020 is information obtained by the remaining amount monitoring unit 231 from the power supply apparatus 400 and is information indicating the remaining amount of the spare power source 401. The guaranteed operation power 1021 is the amount of power calculated by the remaining amount monitoring unit 231 and is an amount of power for guaranteeing that the operation guaranteed state 1013 keeps the ON device (designated device) operating during a power failure. . The surplus power 1022 is an amount of power calculated by the remaining amount monitoring unit 231 and is a power amount indicating a difference between the standby power remaining amount 1020 of the standby power supply 401 and the operation guaranteed power 1021. The operation guarantee time 1023 is a time for guaranteeing that the operation guarantee state 1013 keeps the ON device operating. In the guaranteed operation time 1023, the remaining amount monitoring unit 231 acquires the time acquired from the power outage time receiving unit 240 (the time when the power outage is performed or the time when the device is to be operated during the power outage), for example, 3h is an initial value As recorded.

  FIG. 12 is a configuration diagram of the remaining amount storage unit after one hour has elapsed since the power failure. In FIG. 12, the remaining amount storage unit 232 is a table for managing information related to the remaining amount of the standby power supply 401, and includes the remaining standby power remaining amount 1020, operation guaranteed power 1021, surplus power 1022, and operation guaranteed time. 1023.

  “500 Wh” is stored as the standby power remaining amount 1020, “500 Wh” is stored as the operation guarantee power 1021, and “0 Wh” is stored as the surplus power 1022 in the remaining amount storage unit 232 after one hour has elapsed since the power failure. Is stored, and “2h” is stored as the guaranteed operation time 1023.

  Here, the power failure time receiving unit 240 of the device control apparatus 200 receives a notification from the power failure time notification device 100 that a power failure will be performed for 3 hours from 12:00 to 15:00, and then the power failure is actually performed. Assume that the power supply source is switched from the main power supply 403 to the standby power supply 401. Assume that the security device 303 and the lighting device 304 have the operation guarantee state 1013 set to ON, and the TV 305 has the operation guarantee state 1013 set to OFF.

  At this time, the power failure time receiving unit 240 notifies the remaining power monitoring function unit 231 of the power failure time. Receiving the power failure time notification from the power failure time receiving unit 240, the remaining amount monitoring function unit 230 executes a process for recording information in the remaining amount storage unit 232. First, the remaining amount monitoring unit 231 in the remaining amount monitoring function unit 230 acquires the remaining standby power source from the standby power source 401, and uses the acquired remaining standby power source, for example, “950 Wh” as the standby power source of the remaining amount storage unit 232. Record the remaining amount 1020.

  Next, the remaining amount monitoring unit 231 acquires information on a device whose operation guarantee state 1013 is set to ON from the device database 222 of the device control function unit 220 in order to calculate the guaranteed operation power 1021. In this case, it is the security device 303 and the lighting device 304 that have the operation guarantee state 1013 set to ON. Further, the remaining amount monitoring unit 231 acquires the average power consumption 1001 of each of the security device 303 and the lighting device 304 whose operation guarantee state 1013 is set to ON from the power amount storage unit 212 of the power collection function unit 210. . In this case, the average power consumption of the security device 303 is “50 Wh”, and the average power consumption of the lighting device 304 is “200 Wh”.

  Here, the remaining amount monitoring unit 231 calculates the operation guarantee power 1021 necessary for operating the security device 303 and the lighting device 304 during a three-hour power failure. The operation guarantee power 1021 of the security device 303 is calculated as power outage time 3 hours × average power consumption 50 Wh = 150 Wh. The operation guarantee power 1021 of the lighting device 304 is calculated as power outage time 3 hours × average power consumption 200 Wh = 600 Wh. Therefore, the guaranteed operating power amount 1021 required for using the security device 303 and the lighting device 304 during a three-hour power failure is 750 Wh.

  Further, the remaining amount monitoring unit 231 obtains surplus power 1022 from the reserve power remaining amount 1020 and the operation guaranteed power 1021 obtained above. The surplus power 1022 is a value obtained by subtracting 750 Wh of the operation guarantee power 1021 from 950 Wh of the reserve power remaining amount 1020 and becomes 200 Wh.

  The remaining power 1020 of the standby power supply 401 that is not supplied with power from the main power supply 403 decreases with time, and the surplus power 1022 also decreases. Since the surplus power 1022 is 200 Wh at the start of the power failure, the surplus power is lost when a device with power consumption of 200 Wh is used for about 1 hour. In the case of the present embodiment, since the average power consumption 1001 of the TV 305 is 200 Wh, the TV 305 can be used for about one hour at the time of a power failure.

  Here, when the TV 305 is used for one hour at the time of a power failure, the information shown in FIG. At this time, the average power consumption 1001 is 50 Wh, 200 Wh, and 200 Wh, respectively, because the security device 303, the lighting device 304, and the TV 305 are used for one hour. It becomes. Further, since one hour has passed since the start of the power failure, the remaining operation guarantee time 1033 is 2 hours. The guaranteed operation power 1031 for using the security device 303 and the lighting device 304 for 2 hours is 50 Wh × 2 hours and 200 Wh × 2 hours, which is 500 Wh. Therefore, the surplus power 1032 obtained as the difference between the standby power remaining amount 1030 and the operation guarantee power 1031 is 0 Wh.

  When the surplus power 1032 becomes 0, the device control unit 221 of the device control function unit 220 continues to supply power from the standby power supply 401 to the security device 303 and the lighting device 304 and changes the power of the TV 305 to OFF. (Supply of power from the standby power supply 401 to the TV 305 is stopped). As a result, the standby power remaining amount 1030 is prevented from being consumed by the device whose operation guarantee state 1013 is set to OFF, and the security device 303 is a device whose operation guarantee state 1013 is set to ON. It is possible to operate the lighting device 304 until the end of the power failure.

  According to the present embodiment, when the average power consumption of the security device 303 and the lighting device 304 changes in a constant state at the time of a power failure of the main power supply 403, when the surplus power 1032 becomes 0, the power supply of the TV 305 By turning OFF, the security device 303 and the lighting device 304, which are devices (designated devices) whose operation guarantee state 1013 is set to ON, can be operated until the end of the power failure. Further, when the surplus power 1032 is larger than 0 at the time of a power failure of the main power supply 403, the TV 305 that is a device (non-designated device) whose operation guarantee state 1013 is set to OFF can be operated.

  Also in this embodiment, the priority indicating power supply order is set to the security device 303 and the lighting device 304, and the surplus power 1032 is set after the power of the TV 305 is turned off at the time of the power failure of the main power supply 403. Is smaller than 0, the power source with the lower priority of the security device 303 and the lighting device 304 can be turned off.

  Also in this embodiment, if priority is given in advance to the device database 222 in FIG. 10 as in the device database 222 in FIG. 5, even if the operation guarantee power is insufficient during a power failure. The operation time can be guaranteed for the high-priority device by stopping the operation step by step from the low-priority device.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, it is not necessarily limited to what has all the structures. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

Further, each of the above-described configurations, functions, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function is stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), an IC (Integrated Circuit) card, an SD (Secure Digital) memory card, a DVD ( Digital Versatile Disc) can be recorded and placed.

  100 power failure time notification device, 200 device control device, 210 power collection function unit, 211 power collection unit, 212 power amount storage unit, 220 device control function unit, 221 device control unit, 222 device database, 230 remaining amount monitoring function unit, 231 Remaining amount monitoring unit, 232 Remaining amount storage unit, 240 Power failure time receiving unit, 300 Device 1, 301 Device 2, 302 Device N, 303 Security device, 304 Certification device, 305 TV, 400 Power supply device, 500 Communication path, 600 transmission line.

Claims (5)

A standby power source charged by the main power source,
Among a group of devices to be supplied with power from the main power source or the standby power source, the power of a plurality of designated devices designated as devices whose operation is guaranteed at the time of a power failure of the main power source, the plurality of designations An operation guaranteed power calculation unit that calculates an operation guaranteed power consumed by an apparatus during an operation guaranteed time corresponding to a power failure time of the main power supply;
A standby power remaining amount detector for detecting a remaining amount of standby power indicating the remaining power of the standby power;
At the time of a power failure of the main power supply, a surplus power calculation unit that calculates surplus power from the difference between the standby power remaining amount detected by the standby power remaining amount detection unit and the operation guaranteed power calculated by the operation guaranteed power calculation unit;
A power control unit that controls power supply to at least the plurality of designated devices during the operation guarantee time during a power failure of the main power source,
The power control unit
When the surplus power calculated by the surplus power calculation unit is larger than a set value, power from the standby power supply is supplied to the plurality of designated devices, and the surplus power calculated by the surplus power calculation unit is the set value. In the following cases, the power supply system supplies power from the standby power source to a specified device that is smaller than when the surplus power is larger than the set value. The power supply system according to claim 1,
The power control unit
When the surplus power calculated by the surplus power calculation unit is larger than a set value, one or more non-designated devices different from the designated device within the range of the surplus power are supplied from the standby power source to the device group. A power supply system that supplies power and stops supplying power from the standby power source to the non-designated device when the surplus power calculated by the surplus power calculating unit is equal to or less than the set value. The power supply system according to claim 1,
The power control unit
Managing the plurality of designated devices by associating the order of power supply with priority levels;
When the surplus power calculated by the surplus power calculation unit is equal to or less than the set value, the supply of power from the standby power source to one or more non-designated devices different from the designated device is stopped,
After the supply of power from the standby power supply to the non-designated device is stopped, the standby power remaining amount detected by the standby power remaining amount detection unit is larger than the operation guaranteed power calculated by the operation guaranteed power calculation unit In the case where the supply of power from the standby power source to the designated device is continued, and the standby power remaining amount detected by the standby power remaining amount detection unit is smaller than the operation guaranteed power calculated by the operation guaranteed power calculation unit , Supplying power from the standby power source to the designated device having the highest priority among the designated devices, and for the designated devices other than the designated device having the highest priority, A power supply system, wherein power supply from the standby power supply is stopped in ascending order. The power supply system according to claim 1,
The power control unit
Managing the plurality of designated devices by associating the order of power supply with priority levels;
When the surplus power calculated by the surplus power calculation unit is equal to or less than the set value, the supply of power from the standby power source to one or more non-designated devices different from the designated device is stopped,
After the supply of power from the standby power supply to the non-designated device is stopped, the standby power remaining amount detected by the standby power remaining amount detection unit is larger than the operation guaranteed power calculated by the operation guaranteed power calculation unit In the case where the supply of power from the standby power source to the designated device is continued, and the standby power remaining amount detected by the standby power remaining amount detection unit is smaller than the operation guaranteed power calculated by the operation guaranteed power calculation unit A power supply system for stopping supply of power from the standby power source to a designated device having the lowest priority among the designated devices. The power supply system according to claim 4,
The power control unit
After the supply of power from the standby power supply to the designated device with the lowest priority is stopped, the standby power remaining amount detected by the standby power remaining amount detecting unit is calculated by the operation guarantee power calculating unit. When the operation guaranteed power is smaller than the designated device having the lowest priority among the designated devices, the supply from the standby power supply is stopped for the designated device having the second lowest priority. A power supply system characterized by:

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