JP5549616B2 - Device type determination device, device type determination program, and power management system - Google Patents

Description

  This case relates to a device type determination device, a device type determination program, and a power management system.

  Conventionally, in places where large amounts of power are used, such as factories and offices, the power used during peak hours of power consumption such as during the daytime in summer is reduced, and the power used when total power consumption is reduced such as at night Efforts are being made.

  For example, in offices, efforts are being made to equalize the power used by charging the devices equipped with batteries, such as notebook PCs, with night power, and using the battery power when the devices are operating in the daytime. ing.

  On the other hand, recently, in order to use battery power at the time of peak power consumption, a method of grasping the total power consumption of the office or factory and controlling the outlet power supply of the notebook PC at the peak time is being studied. In this case, it is necessary to determine that the device connected to the outlet is a battery-equipped device such as a notebook PC.

  Regarding power control, there are technologies such as Patent Document 1 (electric equipment monitoring system and operation abnormality alarm system) and Patent Document 2 (electric equipment power supply device).

JP 2000-292465 A JP 2002-186178 A

  As a method for determining the device connected to the outlet described above, a method of statically setting the device connected to the outlet can be considered. Further, as a method for determining a device connected to an outlet, a method is known in which an average value of power consumption of a device is compared with a rated power consumption of the device. However, the former method may cause a setting error, and the latter method cannot distinguish between devices having similar average power consumption (for example, a notebook PC and a large liquid crystal display (LCD)). There is a fear.

  Therefore, the purpose of this case is to provide a device type determination device and a device type determination program that can automatically and accurately determine an information device equipped with a battery from devices connected to an outlet. To do. It is another object of the present invention to provide a power management system capable of appropriate power management.

  The device type determination apparatus described in the present specification acquires a measurement result from a sensor that measures power consumption of a device connected to an outlet, and accumulates the measurement result for a certain period, and the accumulated measurement result Using the acquisition unit for acquiring the average value of power consumption during the predetermined period, the period of fluctuation of power consumption, and the width of fluctuation of power consumption, and the pattern of power consumption in the first period If the cycle is a first pattern having a predetermined value or less and the fluctuation width is within a predetermined fluctuation range, the fact that the cycle is the first pattern indicates that the outlet identifier and the average value of the power consumption In addition, the power consumption pattern recorded in the table and in the second period is such that the fluctuation period is equal to or less than a predetermined value, the fluctuation width is within a predetermined fluctuation width, and the average value is the table first. Pattern determination / recording that records the second pattern in the table together with the outlet identifier when the second pattern differs from the recorded average value by the amount corresponding to the battery charge. And a determination unit that determines whether the device is an information device equipped with a battery based on a table recorded by the pattern determination / recording unit.

  The power management system described in this specification includes the device type determination device described in this specification, and a power control device that controls power supply to the device based on the determination result of the device type determination device. It is a power management system.

  The device type determination program described in this specification acquires a measurement result from a sensor that measures power consumption of a device connected to an outlet, accumulates the measurement result for a certain period, and uses the accumulated measurement result. The average value of power consumption during the predetermined period, the period of fluctuation of power consumption, and the width of fluctuation of power consumption are acquired, and the pattern of power consumption in the first period is less than a predetermined value. When the fluctuation pattern is the first pattern within the predetermined fluctuation range, the fact that the fluctuation pattern is the first pattern is recorded in the table together with the outlet identifier and the average value of the power consumption. In addition, the power consumption pattern in the second period is such that the fluctuation period is equal to or less than a predetermined value, the fluctuation width is within a predetermined fluctuation width, and the average value is recorded in the table first. When the second pattern is different from the average value by the amount corresponding to the battery charge, the fact that the second pattern is recorded in a table together with the outlet identifier is recorded. The device type determination program for causing the computer to execute processing for determining whether the device is an information device equipped with a battery based on the above.

  The device type determination device and the device type determination program described in the present specification have an effect of automatically and accurately determining an information device equipped with a battery from devices connected to an outlet. . In addition, the power management system described in this specification has an effect that appropriate power management can be performed.

It is a figure showing roughly the composition of the power management system concerning one embodiment. It is a figure which shows the hardware constitutions of an apparatus classification determination apparatus. It is a functional block diagram of a device type determination device. 4A is a diagram showing the power information DB, FIG. 4B is a diagram showing a constant table, and FIG. 4C is a diagram showing a determination table. FIG. 5A is a diagram showing a power consumption pattern in the usage / non-charging state, FIG. 5B is a diagram showing a power consumption pattern in the usage / charging state, and FIG. It is a figure which shows the power consumption pattern in a non-use and charge condition. It is a flowchart which shows the process of the storage part of an apparatus classification determination apparatus, an acquisition part, and a pattern determination / recording part. It is a flowchart which shows the process which an apparatus classification determination part performs based on the instruction | indication from an electric power control apparatus. FIG. 8A and FIG. 8B are views (No. 1) for explaining a modification. FIG. 9A and FIG. 9B are views (No. 2) for explaining the modification. It is FIG. (3) for demonstrating a modification.

  Hereinafter, an embodiment of a power management system will be described in detail with reference to FIGS. FIG. 1 shows a schematic configuration of a power management system 100 according to an embodiment. As illustrated in FIG. 1, the power management system 100 includes a device type determination device 10, a power control device 70, and a power tap management device 20. Each device is connected to a network 60 such as a LAN (Local Area Network).

  The device type determination device 10 determines whether the type of device connected to the outlet of the power tap 50 is “PC (Personal Computer)”, “Notebook PC”, or “Unknown”. Among these, “PC” means general information equipment, and includes a desktop PC and a notebook PC as an information equipment equipped with a battery.

  The power control device 70 controls the power supply of a device whose determination result of the device type determination device 10 is a notebook PC via the power tap management device 20. For example, at the peak of power consumption such as during summer daytime, the power supply to the device determined to be a notebook PC is stopped and the notebook PC is driven by a battery.

  The power strip management device 20 monitors the power consumption at each outlet of the power strip 50. It is assumed that the power strip 50 is a smart power strip having a sensor 52 that detects power consumption for each outlet. A user terminal 30, a desk light, and other devices are connected to the power tap 50. The user terminal 30 is assumed to be a desktop PC or a notebook PC. Note that the user terminal 30 may be connected to the network 60.

  FIG. 2 shows a hardware configuration of the device type determination device 10. As shown in FIG. 2, the device type determination apparatus 10 includes a CPU 90 as a computer, a ROM 92, a RAM 94, a storage unit (HDD (Hard Disk Drive)) 96, a portable storage medium drive 99, and the like. Each component of the device type determination device 10 is connected to the bus 98. In the device type determination device 10, the CPU 90 executes a program (device type determination program) stored in the ROM 92 or the HDD 96 or a program (device type determination program) read from the portable storage medium 91 by the portable storage medium drive 99. By doing so, the function of each part of FIG. 3 is implement | achieved.

  FIG. 3 shows a functional block diagram of the device type determination apparatus 10. As illustrated in FIG. 3, in the device type determination apparatus 10, functions as the storage unit 102, the acquisition unit 104, the pattern determination / recording unit 106, and the device type determination unit 108 are executed by the CPU 90 executing a device type determination program. Is realized. 3 also shows the power information DB 110, the constant table 112, and the determination table 114 stored in the ROM 92, the HDD 96, and the like.

  The storage unit 102 acquires the measurement result by the sensor 52 that measures the power consumption of the device connected to the outlet of the power strip 50 via the power strip management device 20. Then, the accumulation unit 102 accumulates the measurement results within a certain period among the measurement results in the power information DB 110. Here, as shown in FIG. 4A, the power information DB 110 stores time, an outlet ID that is an identifier of the outlet, and power consumption at the outlet in association with each other.

  Using the measurement results stored in the storage unit 102, the acquisition unit 104 acquires an average value of power consumption during a certain period, a power consumption fluctuation period, and a power consumption fluctuation width (variation width). For example, when the measurement result of the power consumption for a certain period is accumulated as shown in FIG. 5A, the average value, the period of fluctuation, and the width of fluctuation are shown in the figure. In the constant table 112, constant values as shown in FIG. 4B are defined.

  Returning to FIG. 3, the pattern determination / recording unit 106 determines whether the power consumption has a predetermined pattern based on the average value of power consumption acquired by the acquisition unit 104, the cycle and width of fluctuation, and the constant table 112. Determine whether or not. Then, the pattern determination / recording unit 106 records the determination result in the determination table 114. Here, as shown in FIG. 4C, the determination table 114 includes an outlet ID, a detection pattern (in this embodiment, patterns (1) to (3)), and an average value of power for a certain period. And are stored. Details of the patterns (1) to (3) will be described later.

  The device type determination unit 108 determines whether the device connected to the outlet is a notebook PC based on the determination table 114 recorded by the pattern determination / recording unit 106 in response to a request from the power control device 70. judge. The device type determination unit 108 outputs the determination result to the power control device 70.

  FIGS. 5A to 5C show examples of power consumption patterns stored in the storage unit 102. The pattern in FIG. 5A shows the power consumption of a PC (either a desktop PC or a notebook PC) in a use / non-charge state (a state where the CPU is operating but the battery is not charged). The pattern is shown. In the use / non-charge state, the fluctuation pattern as shown in FIG. 5A is generally due to the fact that a PC or a device such as a CPU or HDD is controlled in a very short time, and therefore the power consumption value has a periodicity. This is because a short fluctuation occurs. In addition, since the PC requires a certain amount of power for the basic operation of the OS, there is a feature that the fluctuation does not exceed a certain ratio of the average value. In the following, the power consumption pattern in the use / non-charge state is referred to as “pattern (1)”.

  The pattern of FIG.5 (b) has shown the power consumption pattern in the utilization and charge state (state in which CPU etc. operate | move and charge the battery) of notebook PC. In this case, the average value is higher than that of the pattern (1) in FIG. This is because the power consumed by charging is added to the power consumed when using the notebook PC. In the following, the power consumption pattern in the usage / charge state is referred to as “pattern (2)”.

  The pattern of FIG.5 (c) has shown the power consumption pattern in the non-use and charge state of notebook PC. The reason for this pattern is that since the notebook PC is not used and device control is not performed, the power consumption pattern does not fluctuate, and only the power consumed by charging appears in the pattern. In the following, the power consumption pattern in the non-use / charge state is referred to as “pattern (3)”.

  Next, specific processing of the device type determination device 10 will be described in detail with reference to FIGS. FIG. 6 is a flowchart illustrating processing of the storage unit 102, the acquisition unit 104, and the pattern determination / recording unit 106 of the device type determination device 10. The process of FIG. 6 is a process performed every predetermined time, and is a process aimed at creating the determination table of FIG.

  In the process of FIG. 6, first, in step S <b> 10, the storage unit 102 stores a power consumption value for a certain period in the power information DB 110. Specifically, as illustrated in FIG. 4A, the storage unit 102 collects power consumption for a certain period for each outlet (outlet ID) in the power information DB 110. Next, in step S12, the acquisition unit 104 analyzes the power consumption. Specifically, the acquisition unit 104 analyzes an average value of power consumption, a fluctuation range of fluctuation, and a fluctuation cycle stored in the power information DB 110 for a certain period. Note that, as the analysis of the fluctuation range of fluctuation, the variance may be calculated, or the difference between the maximum value and the minimum value may be simply calculated. The fluctuation period may be analyzed using an analysis method such as FFT (Fast Fourier Transform).

  Next, in step S14, the pattern determination / recording unit 106 determines whether or not the fluctuation range of fluctuation is within a specified range as a result of step S12. In this case, the pattern determination / recording unit 106 uses the fluctuation upper limit ratio (ratio with respect to the average value) and the fluctuation lower limit ratio (ratio with respect to the average value) of the constant table 112 so that the fluctuation range of fluctuation is between the upper limit and the lower limit. It is judged whether it is included in. If the determination here is affirmed, the process proceeds to step S16. If the determination is negative, the process proceeds to step S30.

  When the determination in step S14 is affirmed and the process proceeds to step S16, the pattern determination / recording unit 106 determines whether or not the fluctuation cycle includes a component equal to or less than a specified value. In step S16, the pattern determination / recording unit 106 makes a determination using the fluctuation component threshold value and fluctuation period of the constant table 112 in FIG. 4B. If the determination here is negative, there is a high possibility that the device connected to the outlet is not a PC, so it does not apply to any of the patterns (1) to (3) described above. For this reason, it returns to step S10, without performing determination of pattern (1)-(3).

  On the other hand, if the determination in step S16 is affirmative, the process proceeds to step S18, and the pattern determination / recording unit 106 has detected the pattern (1) for the same outlet (written in the determination table 114). Determine whether. If the determination is negative, the process proceeds to step S26, the pattern (1) is written in the determination table 114, and the process returns to step S10. On the other hand, if the pattern (1) has already been written and the determination in step S18 is affirmed, the process proceeds to step S20.

  In step S <b> 20, the pattern determination / recording unit 106 determines whether or not the average value is higher than the average value of the pattern (1) by the charge power or more. In step S20, the pattern determination / recording unit 106 makes a determination using the charging power (30 W) of the constant table 112 in FIG. If the determination here is affirmative, that is, the pattern already recorded in the determination table 114 is a pattern as shown in FIG. 5A, and the current pattern is a pattern as shown in FIG. In this case, there is a high possibility that the current pattern is the pattern (2). Therefore, in such a case, the pattern determination / recording unit 106 writes the pattern (2) in the determination table 114 in step S28, and then returns to step S10.

  On the other hand, if the determination in step S20 is negative, the process proceeds to step S22, and the pattern determination / recording unit 106 determines whether or not the average value is lower than the average value of the pattern (1) by the charge power or more. Judging. Also in this case, in step S22, the pattern determination / recording unit 106 makes a determination using the charging power (30 W) of the constant table 112 in FIG. If the determination here is affirmative, that is, the pattern already recorded in the determination table 114 is a pattern as shown in FIG. 5B, and the current pattern is a pattern as shown in FIG. If it is, there is a high possibility that the current pattern is the pattern (1). Therefore, in such a case, the pattern determination / recording unit 106 corrects the already recorded pattern (1) to the pattern (2) in step S24. Then, in step S26, the pattern determination / recording unit 106 writes the current pattern as the pattern (1) in the determination table 114, and then returns to step S10.

  On the other hand, if the determination in step S22 is negative, it can be determined that neither the pattern (1) nor (2) is present, so the process returns to step S10 without writing the pattern.

  Incidentally, if the determination in step S14 is negative, that is, if the fluctuation range of fluctuation is not within the specified range, the process proceeds to step S30. In step S30, the pattern determination / recording unit 106 determines whether or not the fluctuation width is equal to or less than the charging fluctuation. In step S30, the pattern determination / recording unit 106 makes a determination using the charge fluctuation (1%) in the constant table 112 in FIG. 4B. If the determination here is affirmed, the pattern determination / recording unit 106 determines whether or not the average value of the power consumption matches the charging power in step S32. In step S32, the pattern determination / recording unit 106 makes a determination using the charging power (30 W) in FIG. If the determination here is affirmative, it can be determined that the device connected to the outlet is being charged, so the pattern determination / recording unit 106 adds pattern (3) to the determination table in step S34. After writing, the process returns to step S10.

  If the determination in step S30 is negative, or if the determination in step S32 is negative, it cannot be determined that the pattern is one of patterns (1) to (3), and the process directly returns to step S10.

  After returning to step S10 through the processing as described above, changing the outlet (outlet ID) or changing the analysis period and performing the same processing as described above will determine the power consumption pattern of the device. I do.

  Through the above processing, for example, a determination table 114 as shown in FIG. 4C is obtained.

  Next, the process executed by the device type determination unit 108 based on an instruction from the power control apparatus 70 will be specifically described along the flowchart of FIG. The power control device 70 specifies an outlet ID and outputs an instruction to return the device type of the device connected to the outlet of the outlet ID to the device type determination unit 108.

  In step S <b> 40, the device type determination unit 108 acquires the outlet ID included in the instruction from the power control device 70. Next, in step S42, the device type determination unit 108 determines whether the pattern (1) has been determined. If the determination is negative, that is, if the pattern (1) is not recorded in the determination table 114, the process proceeds to step S52, and the device type determination unit 108 sets the type “unknown” to power control. Reply to the device 70.

  On the other hand, if the determination in step S42 is affirmative, the device type determination unit 108 proceeds to step S44 and determines whether the pattern (2) has been determined. If the determination here is affirmative, that is, if the patterns (1) and (2) are recorded in the determination table 114, there is a high possibility of being a notebook PC. Therefore, in this case, the process proceeds to step 46, and the device type determination unit 108 returns the type “notebook PC” to the power control apparatus 70.

  On the other hand, if the determination in step S44 is negative, the device type determination unit 108 proceeds to step S48 and determines whether the pattern (3) has been determined. If the determination here is affirmative, that is, if the patterns (1) and (3) are recorded in the determination table 114, it is highly possible that the PC is a notebook PC, so the process proceeds to step S46. The device type determination unit 108 returns the type “notebook PC” to the power control apparatus 70. If the determination in step S48 is negative, that is, if only the pattern (1) is recorded in the determination table 114, there is a high possibility that it is a PC (desktop type or notebook type). Therefore, the device type determination unit 108 proceeds to step S50 and returns the type “PC” to the power control apparatus 70.

  As described above, when any of the “notebook PC”, “PC”, and “unknown” responses is made, the entire processing of FIG.

  The power control device 70 that has received the response from the device type determination unit 108 through the processing of FIG. 7 performs power supply control via the power tap management device 20 based on the response. Specifically, the power control device 70 reduces the power supply to the notebook PC when the power consumption reaches a peak, for example, during the daytime in summer, and drives the notebook PC with a battery. When it falls, control is performed such as supplying power to the notebook PC to charge the battery.

  Here, two use cases will be described.

(Use Case 1)
It is assumed that the user is working by connecting the notebook PC to the outlet of the power tap 50 at his / her own seat in the office. In addition, it is assumed that the connection to the power tap 50 has been continued for a while and the charging of the battery is 100% complete.

  When the determination processing of FIG. 6 starts in this state, the storage unit 102 stores power consumption for a certain period, for example, 1 minute in the power information DB 110 every other second (S10), and the acquisition unit 104 stores the stored 60 The average value, variance, and fluctuation cycle of each piece of data are obtained (S12). It is assumed that the average value in this case is 20 and the variance is 0.6. Further, the acquisition unit 104 applies FFT to 60 pieces of data, and obtains an average amplitude of components whose period is 10 seconds or less. As a result, it is assumed that the average amplitude is 5.7. When using FFT, the number of data needs to be a multiple of 2. Therefore, the settable period is limited to a multiple of 2 or the acquisition interval is adjusted, for example, 0.94 second interval You may acquire data with.

  Here, since the fluctuation width is twice the variance and is 1.2, the acquisition unit 104 obtains a ratio of 0.06 by dividing 1.2 by the average value (20). Since this value is between the fluctuation lower limit ratio (0.05) and the fluctuation upper limit ratio (0.3) described in the constant table, the determination in step S14 in FIG. 6 is affirmed.

  Next, the amplitude average (5.7) obtained as a result of the FFT is compared with a fluctuation component threshold value (here, 1 as shown in FIG. 4B) (step S16). In this case, since the average amplitude (5.7) is larger than the fluctuation component threshold, the determination is affirmed. In this case, if the pattern (1) is not recorded for the same outlet in the determination table 114 of FIG. 4C (if step S18 is negative), the pattern (1) is stored in the determination table 114. It will be recorded (step S28).

  After that, it is assumed that the user moves to the conference room, uses the notebook PC using the battery, returns to his seat after several hours, and starts working again using the AC power supply. In this case, it is assumed that, as a result of performing the same processing as described above, the average value of power consumption is 50, and the fluctuation width and period show almost the same values as described above. In this case, since the pattern (1) has already been recorded in the determination table 114 (Yes in step S18), the pattern determination / recording unit 106 determines that the current average value (50) and the previous average value (20). Are compared (steps S20 and S22). Here, since the current average value is large by the charging power 30 W in the determination table of FIG. 4B, the determination in step S20 is affirmed, and in step S28, the pattern determination / recording unit 106 enters the determination table 114. Record pattern (2).

  Thereafter, when there is an inquiry about the device type from the power control apparatus 70, since the patterns (1) and (2) are recorded in the determination table 114, the device type determination unit 108 performs the processing of FIG. , "Notebook PC" is returned.

(Use Case 2)
In use case 2, a case is assumed in which the determination starts with the user attending the meeting and returning to his / her seat. In this case, charging power is detected in addition to the power consumption of the PC body in order to connect to the power supply when the battery is exhausted. Therefore, the pattern (1) is determined with the average value 50. When charging is completed after a while, an average value of 20 is detected. In this case, the current average value is lower than the average value of the previous pattern (1). Therefore, the pattern determination / recording unit 106 corrects the previous pattern (1) to the pattern (2) and records the pattern (2) as the current pattern (No in step S20 → Yes in step S22 → Step S24, S26).

  Thereafter, when there is an inquiry about the device type from the power control device 70, the patterns (1) and (2) are recorded in the determination table 114, and therefore the device type determination unit 108 performs the processing of FIG. Then, “notebook PC” is returned.

  As described above in detail, according to the present embodiment, the storage unit 102 acquires the measurement result from the sensor 52 that measures the power consumption of the device connected to the outlet, and also displays the measurement result for a certain period as the power information. The acquisition unit 104 acquires the average value of power consumption, the period of fluctuation of power consumption, and the width of fluctuation of power consumption using a measurement result accumulated in the power information DB 110. . Further, the pattern determination / recording unit 106 has a case where the power consumption pattern in a certain period is a pattern (pattern (1)) in which the fluctuation cycle is equal to or less than a predetermined value and the fluctuation width is within a predetermined fluctuation width. In addition, it is recorded in the determination table 114 together with the outlet ID and the average power consumption, and the power consumption pattern in another period is such that the fluctuation cycle is not more than a predetermined value and the fluctuation width is within a predetermined fluctuation range. If the average value is a pattern that differs from the average value previously recorded in the determination table 114 by the amount corresponding to the battery charge, this is true (if the average value is greater than the recorded average value). Is pattern (2), and if the average value is smaller than the recorded average value, pattern (1) (the recorded pattern (1) is changed to (2))) Recorded in determination table 114 with ID. Furthermore, the device type determination unit 108 determines whether the device is an information device (such as a notebook PC) equipped with a battery based on the determination table 114. Therefore, in this embodiment, in order to determine whether or not a notebook PC or the like based on the power consumption pattern determined from the result of analyzing the power consumption measurement result for a certain period, the device connected to the outlet is It is possible to automatically and accurately determine whether the information device is equipped with a battery such as a notebook PC. In this case, there is no risk of setting errors as in the case of statically setting the device connected to the outlet, and by using the power consumption pattern, the average power consumption of the device and the device As a result, it is no longer possible to distinguish between devices (for example, notebook PCs and large LCDs) having similar average power consumption as in the case of comparing the rated power consumptions of the devices.

  Further, in the present embodiment, the pattern determination / recording unit 106, if the power consumption pattern in a certain period matches the pattern that appears during battery charging (that is, the pattern (3)). And recorded in the determination table 114. Therefore, by using the determination table 114 in which the pattern (3) is recorded in addition to the patterns (1) and (2), the device type determination unit 108 determines the device connected to the outlet so that high accuracy can be achieved. Judgment is possible. Specifically, in addition to devices connected to outlets where patterns (1) and (2) are recorded, devices connected to outlets where patterns (1) and (3) are recorded It can be determined as a notebook PC.

  In the above embodiment, the case where only the pattern (1) is recorded in the determination table 114 is described as a case where “PC” is returned to the power control apparatus 70 (step S50). It is not limited to. When only the pattern (1) is recorded in the determination table 114, “unknown” may be returned to the power control device 70.

  Further, in the above embodiment, the device type determination device 10 is provided with the effective period determination unit 120 as shown in FIG. 8A, and the determination table 114 has a determination time as shown in FIG. 8B. It is good also as providing the column which fills in. In this case, the pattern determination / recording unit 106 records (or updates) the determined time in the field for entering the determination time when performing the writing process to the determination table 114 in steps S26, S28, and S34. To. Then, the valid period determination unit 120 refers to the determination table 114 at regular intervals, and deletes the record of the pattern when a predetermined time (for example, 10 minutes) has elapsed from the determination time. By doing in this way, it becomes possible to reduce the influence on the device type determination accuracy by a pattern determined in the past (which may be a pattern of another device).

  When the determination table 114 as shown in FIG. 8B is used, the device type determination unit 108 determines the time when the pattern (1) is recorded for a certain outlet ID and the pattern (2) or (3). Of the recorded times, it may be determined whether the time at which the pattern (1) is recorded is closer to the current time. As a result of the determination, when the time at which the pattern (1) is recorded is closer to the current time, the device type determination unit 108 returns “notebook PC” to the power control device 70 and sets the state of charge. It is good also as replying “100% charge”.

  In the above embodiment, the device type determination unit 108 refers to the related outlet table 122 as the related outlet storage unit illustrated in FIG. 9A when performing the determination using the determination table 114. Good. Here, the device type determination unit 108 performs the processing of FIG. 7 by regarding the outlet with the outlet ID described in the upper row and the outlet with the outlet ID described in the lower row as the same outlet in the related outlet table 122. To do. Accordingly, the device type determination unit 108 records the pattern (1) in the upper outlet ID of the related outlet table 122 and records the pattern (2) or (3) in the lower outlet ID. The device connected to the outlet can be identified as a “notebook PC”. In this case, even when the notebook PC is connected to two or more outlets (outlets defined in the related outlet table 122), the device type can be determined.

  In the above embodiment, as shown in FIG. 10, the determination table 114 is provided with columns for entering the determination time and the continuous determination time, and the pattern determination / recording unit 106 records these patterns when recording the pattern. It is good also as recording to a column. In this case, the device type determination unit 108 is effective in recording the pattern only when the continuous determination time of each pattern recorded in the determination table 114 is equal to or greater than the specified value at the time when the determination request is made. Will be treated as By doing so, it is possible to eliminate erroneous detection due to a temporary increase in power consumption due to a CPU load or the like.

  In the above embodiment, the pattern determination / recording unit 106 sets the intermediate state between patterns (2) and (1) (the difference between the average values is equal to or less than the charging power) as the pattern (4), and the determination table 114 It is good also as recording on. In this case, the device type determination unit 108 may return a response such as “charged” to the power control device 70 when the pattern (4) is the latest pattern. In such a case, the power control device 70 can perform control such as preferentially reducing power supply to the charged notebook PC when power is insufficient.

  In the above embodiment, the pattern determination / recording unit 106 has described the case of recording the patterns (1) to (3) in the determination table 114, but the present invention is not limited to this. For example, the pattern determination / recording unit 106 may record only the patterns (1) and (2) or only the patterns (1) and (3) in the determination table 114.

  In the above embodiment, the case where the information device on which the battery is mounted is a notebook PC has been described. However, the present invention is not limited to this. As an information device, it can be applied to a tablet PC, a PDA (Personal Digital Assistant), a mobile phone, a smartphone, and a portable television (such as a one-segment television).

  Moreover, although the case where power control is performed based on the device type determined by the device type determination device 10 has been described in the above embodiment, the present invention is not limited to this and can be used for various other controls. Further, the device type and power consumption determined by the device type determination device 10 may be simply displayed on the display device.

  The above processing functions can be realized by a computer. In that case, a program describing the processing contents of the functions that the processing apparatus should have is provided. By executing the program on a computer, the above processing functions are realized on the computer. The program describing the processing contents can be recorded on a computer-readable recording medium.

  When the program is distributed, for example, it is sold in the form of a portable recording medium such as a DVD (Digital Versatile Disc) or a CD-ROM (Compact Disc Read Only Memory) on which the program is recorded. It is also possible to store the program in a storage device of a server computer and transfer the program from the server computer to another computer via a network.

  The computer that executes the program stores, for example, the program recorded on the portable recording medium or the program transferred from the server computer in its own storage device. Then, the computer reads the program from its own storage device and executes processing according to the program. The computer can also read the program directly from the portable recording medium and execute processing according to the program. Further, each time the program is transferred from the server computer, the computer can sequentially execute processing according to the received program.

  The above-described embodiment is an example of a preferred embodiment of the present invention. However, the present invention is not limited to this, and various modifications can be made without departing from the scope of the present invention.

In addition, the following additional notes are disclosed regarding the above description.
(Supplementary note 1) Acquiring measurement results from a sensor that measures the power consumption of a device connected to an outlet, and accumulating the measurement results for a certain period, and using the accumulated measurement results during the certain period The average value of the power consumption, the period of fluctuation of power consumption, and the width of the fluctuation of power consumption, and the pattern of power consumption in the first period, the fluctuation period is less than a predetermined value, If the fluctuation pattern is the first pattern within a predetermined fluctuation range, the fact that it was the first pattern is recorded in a table together with the identifier of the outlet and the average value of the power consumption, and The power consumption pattern in the second period is such that the fluctuation period is less than or equal to a predetermined value, the fluctuation width is within a predetermined fluctuation width, and the average value is compared with the average value recorded in the table previously. A pattern determination / recording unit that records the second pattern in the table together with the outlet identifier when the second pattern is different by an amount corresponding to battery charge, and the pattern determination / recording A device type determination apparatus comprising: a determination unit that determines whether the device is an information device equipped with a battery based on a table recorded by the unit.
(Supplementary Note 2) The pattern determination / recording unit, when the power consumption pattern in the first or second period coincides with the pattern appearing during battery charging, is the third pattern, The device type determination apparatus according to appendix 1, wherein the device type is recorded in a table together with the identifier of the outlet.
(Supplementary note 3) The device type determination device according to Supplementary note 1 or 2, further comprising an effective period determination unit that deletes information that has been recorded for a predetermined time after being recorded in the table.
(Additional remark 4) The said pattern determination and recording part records the said pattern in the said table, when the same pattern is maintained for a predetermined time, The apparatus classification determination in any one of Additional remarks 1-3 characterized by the above-mentioned. apparatus.
(Additional remark 5) It is further provided with the related outlet storage part by which the some outlet to which the same apparatus is connected was linked | related, and the said determination part has the same identifier of the some outlet registered into the said related outlet storage part The device type determination device according to any one of appendices 1 to 4, wherein the determination is performed by regarding the outlet identifier.
(Additional remark 6) The said determination part determines the charge condition of the apparatus determined to be the information apparatus which mounted the battery based on the pattern currently recorded on the said table in any one of the additional marks 1-5 characterized by the above-mentioned. The device type determination device described.
(Supplementary Note 7) A power management system comprising: the device type determination device according to any one of Supplementary Notes 1 to 6; and a power control device that controls power supply to the device based on a determination result of the device type determination device. .
(Appendix 8) Acquiring measurement results from a sensor that measures the power consumption of a device connected to an outlet, accumulating the measurement results for a certain period, and using the accumulated measurement results, consumption during the certain period The average value of power, the period of fluctuation of power consumption, and the width of fluctuation of power consumption are acquired, and the pattern of power consumption in the first period is such that the fluctuation period is less than or equal to a predetermined value and the width of fluctuation is predetermined. If it is the first pattern within the fluctuation range, the fact that it was the first pattern is recorded in the table together with the identifier of the outlet and the average value of the power consumption, and the second period In the power consumption pattern, the fluctuation period is less than or equal to a predetermined value, the fluctuation width is within a predetermined fluctuation range, and the average value is compared with the average value previously recorded in the table. When the second pattern is different by the power equivalent to the power, the second pattern is recorded in a table together with the outlet identifier, and based on the recorded table, the device A device type determination program for causing a computer to execute processing for determining whether or not an information device is equipped with a battery.
(Supplementary Note 9) In the process of recording in the table, if the pattern of power consumption in the first or second period matches the pattern that appears during battery charging, the computer uses the third pattern. 9. The device type determination program according to appendix 8, wherein the event is recorded in a table together with the outlet identifier.
(Supplementary note 10) The device type determination program according to supplementary note 8 or 9, further causing the computer to further execute a process of deleting information after a predetermined time has elapsed since recording in the table.
(Additional remark 11) In the process which records on the said table, when the same pattern is maintained for a predetermined time, the said computer is made to record the said pattern on the said table in any one of Additional remark 8-10 characterized by the above-mentioned. Device type determination program.
(Additional remark 12) In the said determination process, based on the information which linked | related the several outlets to which the same apparatus is connected to the said computer, the identifier of several outlets is regarded as the same outlet identifier, and the said determination is performed The device type determination program according to any one of appendices 8 to 11, characterized in that:
(Additional remark 13) In the said determination process, based on the pattern currently recorded on the said table, the said computer is made to determine the charge condition of the apparatus determined to be the information apparatus carrying a battery, The additional remarks 8-8 characterized by the above-mentioned. The device type determination program according to any one of 12.

DESCRIPTION OF SYMBOLS 10 Device type determination apparatus 52 Sensor 70 Power control apparatus 100 Power supply management system 102 Storage part 104 Acquisition part 106 Pattern determination / recording part 108 Device type determination part (determination part)
114 Judgment table (table)
122 Related outlet table (related outlet storage)

Claims (8)

A storage unit that acquires measurement results from a sensor that measures the power consumption of equipment connected to an outlet, and stores the measurement results for a certain period of time,
Using the accumulated measurement results, an acquisition unit that acquires an average value of power consumption during the certain period, a period of fluctuation of power consumption, and a width of fluctuation of power consumption;
The power consumption pattern in the first period is the first pattern when the fluctuation cycle is a predetermined value or less and the fluctuation width is within a predetermined fluctuation range. In the table together with the identifier of the outlet and the average value of the power consumption, and the power consumption pattern in the second period is such that the fluctuation period is not more than a predetermined value and the fluctuation width is predetermined. If the second pattern is within the fluctuation range, and the average value is a second pattern that is different from the average value recorded in the table by an amount corresponding to the battery charge, the second pattern is A pattern determination / recording unit for recording in a table together with the identifier of the outlet;
A device type determination apparatus comprising: a determination unit that determines whether or not the device is an information device equipped with a battery based on a table recorded by the pattern determination / recording unit.   The pattern determination / recording unit determines that the power consumption pattern in the first or second period is the third pattern when the power consumption pattern matches the pattern appearing during battery charging. The device type determination device according to claim 1, wherein the device type determination device is recorded together with the table.   The device type determination apparatus according to claim 1, further comprising an effective period determination unit that deletes information after a predetermined time has elapsed since recording in the table.   4. The device type determination device according to claim 1, wherein the pattern determination / recording unit records the pattern in the table when the same pattern is maintained for a predetermined time. 5. . A related outlet storage unit in which a plurality of outlets to which the same device is connected are associated and registered;
5. The determination unit according to claim 1, wherein the determination unit regards the identifiers of a plurality of outlets registered in the related outlet storage unit as the same outlet identifier, and performs the determination. Device type determination device.   The said determination part determines the charge condition of the apparatus determined to be the information apparatus which mounted the battery based on the pattern currently recorded on the said table, The Claim 1 characterized by the above-mentioned. Device type determination device. The device type determination device according to any one of claims 1 to 6,
A power management system comprising: a power control device that performs power supply control to a device based on a determination result of the device type determination device. Acquire measurement results from sensors that measure the power consumption of equipment connected to an outlet, and accumulate measurement results for a certain period of time.
Using the accumulated measurement results, obtain an average value of power consumption during the certain period, a period of fluctuation of power consumption, and a width of fluctuation of power consumption,
The power consumption pattern in the first period is the first pattern when the fluctuation cycle is a predetermined value or less and the fluctuation width is within a predetermined fluctuation range. In the table together with the identifier of the outlet and the average value of the power consumption, and the power consumption pattern in the second period is such that the fluctuation period is not more than a predetermined value and the fluctuation width is predetermined. If the second pattern is within the fluctuation range, and the average value is a second pattern that is different from the average value recorded in the table by an amount corresponding to the battery charge, the second pattern is , Record in a table with the outlet identifier,
A device type determination program that causes a computer to execute processing for determining whether or not the device is an information device equipped with a battery based on the recorded table.

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