KR101414444B1 - Method for managing electric usable capacity and apparatus thereof - Google Patents

Abstract

The present invention relates to a method for managing electric usable capacity and an electric usable capacity management apparatus. The present invention provides the method for managing the electric usable capacity using the apparatus for managing the electric usable capacity comprising the steps of: receiving a drive requirement time rate per unit time and a current consumption amount per unit time from each of multiple load modules; distributing operation intervals of the multiple load modules according to time with respect to multiple sub-time intervals forming the unit time in consideration of the drive requirement time rate per unit time; and transmitting an on-off drive signal corresponding to an individual operation interval of each load module to the corresponding load module. The method for managing the electric usable capacity and the apparatus thereof temporally distribute energy load of the multiple load modules consuming power in a terminal, thereby reducing an instant maximum load rate of a battery and maximizing usable energy capacity of the battery.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electricity availability management method and apparatus, and more particularly, to an electricity availability management method and apparatus capable of maximizing the amount of available energy by efficiently managing battery energy of a terminal.

Generally, a terminal using a battery includes a processor for calculation processing, a wireless communication unit for wireless communication, a memory for storing data, and an input / output device such as a display for input / output. The energy consumption of the terminal corresponds to the sum of the individual energy consumption of each device including the processor, the wireless communication unit, the memory, the input / output device, and the like, and this energy is supplied by the electric energy expressed by the voltage and the current.

The change of the energy consumption according to the time of the terminal corresponds to the sum of the energy consumption according to the time consumed by each device. Therefore, when multiple devices are simultaneously driven in the terminal, instantaneous energy consumption is increased.

Generally, in the case of a disposable battery, it operates by discharging to the limit of the operation of the apparatus. In the case of a rechargeable rechargeable battery, it is repeatedly used and discharged within a limit to maintain the quality of the battery do.

The energy stored in the cell is the accumulation or release of energy in the form of a chemical reaction and emits energy in the form of electrical energy represented by voltage and current. The instantaneous energy release is a product of the voltage and current that is discharged from the cell at a specific moment, and discharges at a higher current when more energy is needed. The total amount of usable energy that can be drawn from the cell corresponds to the total sum of discharge voltage and current over time.

However, in the use of energy stored in the cell, such available energy follows the Peukert's Law. This means that the smaller the amount of load current drawn from the battery, the more energy can be drawn out and used.

More specifically, as the battery continuously consumes a small amount of current or a variation in the amount of current used over time, the battery can be used for a longer period of time. On the contrary, as the instantaneous current amount of the battery rapidly increases, or the variation of the amount of current used increases, the usable time of the battery decreases.

Therefore, when the operations of the loads including the processor, the wireless communication unit, the memory, and the input / output unit are overlapped in the terminal using the battery, the load current amount for the battery becomes high, so that much energy can not be drawn from the same battery. As a result, existing methods that do not manage the instantaneous current amount due to the combination of loads on various devices have a problem that the amount of available energy of the battery can not be efficiently used.

The technique of the background of the present invention is disclosed in Korean Patent Publication No. 2008-0044576 (published on May 21, 2008).

It is an object of the present invention to provide an electricity availability management method and apparatus that can efficiently manage the battery energy of a terminal to maximize the amount of available energy.

The present invention relates to an electricity availability control method using an electricity availability management device, comprising: receiving a ratio of a driving demand time per unit time and a current consumption per unit time from a plurality of load modules, The method comprising the steps of: distributing an operating period of the plurality of load modules with respect to time in consideration of the ratio of the driving time required per unit time with respect to a sub time period of the load module; To each of the modules.

The step of distributing the operation sections of the plurality of load modules with time may include the step of distributing the operation sections of the plurality of load modules with respect to each of the load modules, The operation period of the load module can be arranged in the load module.

Here, when the total sum of the numbers corresponding to the driving time per unit time for each of the load modules is smaller than or equal to the total number of the sub time periods, The operation sections of the plurality of load modules can be arranged so as not to overlap each other.

When the total sum of the numbers of the driving modules per unit time for each of the load modules is greater than the total number of sub-time intervals, the plurality of sub- So that overlapping occurs between the operation ports of the load module of the first embodiment.

The step of distributing the operation sections of the plurality of load modules according to time may sequentially arrange the operation sections in order of the load modules having a high drive time ratio per unit time.

The step of distributing the operation periods of the plurality of load modules according to time may dispersively arrange the operation periods of the plurality of load modules so that the deviation of the current consumption amount is minimized for each of the plurality of sub time periods.

The step of distributing the operation sections of the plurality of load modules according to time may sequentially arrange the operation sections in order of the load modules having a large current consumption amount.

The step of distributing the operation periods of the plurality of load modules according to time may dispersively arrange the operation periods of the plurality of load modules so that the deviation of the current consumption amount is minimized for each of the plurality of sub time periods.

According to another aspect of the present invention, there is provided an information processing apparatus including an information collecting unit that receives a plurality of load modules, a drive request time ratio per unit time and a current consumption amount per unit time, And a drive signal transmission unit for transmitting the on / off drive signals corresponding to the individual operation ports of the load module to the corresponding load modules, respectively, The present invention also provides an electricity availability management device including the electric power management device.

In addition, the operation section arrangement section may arrange, for each of the load modules, an operation section of the load module in a part of a sub time period corresponding to the drive time ratio per unit time among the plurality of sub time sections .

In addition, the operation section arrangement section may sequentially arrange the operation sections in order of the load modules having a high driving time ratio per unit time.

In addition, the operation section arrangement section may sequentially arrange the operation sections in the order of the load modules having a large current consumption amount.

According to the electricity availability management method and apparatus of the present invention, as the energy load between the plurality of load modules consuming power in the terminal is dispersed in time, the instantaneous maximum load factor of the battery is reduced and the available energy capacity of the battery is maximized There is an advantage to be able to do.

1 is a configuration diagram of an electricity availability management apparatus according to an embodiment of the present invention.
2 is a flowchart of an electricity availability management method using the electricity availability management apparatus according to FIG.
FIG. 3 is an example of information collected according to step S210 of FIG.
FIG. 4 shows an example of the arrangement of the operation section according to the first embodiment of the step S220 of FIG.
FIG. 5 shows an example of the arrangement of the operation section according to the second embodiment of the step S220 of FIG.
FIG. 6 shows an example in which the current consumption variation over time is reduced according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

[0001] The present invention relates to a method and apparatus for managing the amount of electricity available, and it is an object of the present invention to reduce the instantaneous maximum load factor of a battery by temporally dispersing the energy load among various load modules consuming power in the terminal, So that the capacity can be maximized. The present invention can increase the available energy capacity of electricity by preventing the power consumption from concentrating at a specific moment.

1 is a configuration diagram of an electricity availability management apparatus according to an embodiment of the present invention. 2 is a flowchart of an electricity availability management method using the electricity availability management apparatus according to FIG.

1 and 2, the electricity availability management apparatus 100 includes an information collecting unit 110, an operation section arrangement unit 120, and a drive signal transmission unit 130. The electricity availability management apparatus 100 may be provided in the terminal or separately from the terminal.

First, the information collecting unit 110 receives a driving time ratio per unit time and a current consumption per unit time from a plurality of load modules (ex, processor, wireless communication unit, DRAM memory, NAND flash, display, sound) ). This corresponds to the process of receiving the driving request time per unit time and the current consumption per unit time from each load module in a predetermined unit time (ex, 100 ms).

More specifically, the controller can receive the driving request time ratio per unit time and the current consumption per unit time from the respective load modules for the unit time, and to manage the available amount for the subsequent unit time in advance. Thus, in step S210, the energy consumption and the drive request time of each load module are requested in advance in the management cycle unit, and the requested data are used as data for controlling the supply of energy required for processing the load demand in the future.

FIG. 3 is an example of information collected according to step S210 of FIG. 3, the current consumption per unit time is 100 mA, and the ratio of the driving time required per unit time is 30%. This is because the current consumption required for driving the 'processor' during a unit time (ex, 100 ms) is 100 mA in total, and the ratio of the time required for driving the 'processor' 30 ms. In other words, when the current of 100 mA is supplied for only 30 ms within the unit time, it means that the processor is normally driven. The above example applies to the same principle for other load modules.

In this embodiment, the unit time may be divided into a plurality of sub-time periods. For example, 100 ms is divided into 10 sub-time periods in units of 10 ms. If the time required for driving the processor is 30%, a total of three sub-time periods are required for driving the processor among the 10 sub-time periods.

After collecting corresponding information for each load module, the operation section arrangement unit 120 divides the operation time of each of the plurality of sub time sections ex (10 ms intervals) constituting the unit time (ex, 100 ms) , And the operation periods of the plurality of load modules are distributed and arranged in consideration of the ratio of the drive request time per unit time (S220).

For each load module, the operation section arrangement unit 120 arranges the operation period of the load module in a part of a sub time period corresponding to the drive time ratio per unit time among the plurality of sub time periods.

That is, when the unit time is 100 ms and the sub-time period is 10 ms, the 'processor' module of the load module of FIG. 2 performs the operation of the three arbitrary sub-time periods corresponding to 30% . In addition, the 'wireless communication module' module of the load module of FIG. 2 allocates an operation interval for one arbitrary sub time interval corresponding to 10% of 10 total sub time intervals. In this manner, in step S220, the operation period of the load module is allocated to the total number of sub-time intervals and the number of sub-time periods multiplied by the ratio of the drive request time per unit time.

Based on this method, the operating interval of each load module is distributed over 10 sub time intervals. This corresponds to a process of setting a time interval for allowing (supplying) and inhibiting (cutting off) power supply of each load module for each sub-time period.

In the step S220 described above, the energy consumption is prevented from being concentrated at a specific moment (sub-time interval) by distributing the operation period of each load module with respect to each sub-time interval constituting the unit time in a temporally distributed manner. According to this, by controlling the maximum instantaneous energy consumption of the battery (battery) constituting the terminal, it is possible to increase the available energy capacity of the battery in accordance with the Peukert's Law.

Then, the driving signal transmitting unit 130 generates corresponding on / off driving signals between the individual operation ports of the load module according to the distributed arrangement, and transmits the generated on / off driving signals to the corresponding load module, respectively (S230).

This is a process for controlling the on / off operation of the load module according to the individual operation ports of each load module set in step S220. The on / off driving signal may be directly transmitted to the load module or may be transmitted to the power management unit in the terminal so that the power management unit can directly manage the on / off operation.

Hereinafter, an embodiment of the distributed arrangement among the operation ports according to the load modules will be described in detail. For convenience of explanation, it is assumed that a total of four load modules (processor, wireless communication unit, memory, and display) exist in the terminal.

Table 1 shows the current consumption per unit time and the ratio of the drive request time per unit time for each load module to be used in the following first embodiment.

Load module Current consumption per unit time,
Percentage of driving time required per unit time Device A 200mA, 40% Device B 50mA, 30% Device C 30 mA, 20% Device D 10mA, 10%

Each of the load modules has been described in which an operation section is arranged for a part of a sub time section corresponding to a driving time ratio per unit time among the plurality of sub time sections.

When the unit time (100 ms) is constituted by 10 sub-time intervals in units of 10 ms, the 'device A' module of the load module of Table 1 outputs four arbitrary sub-time intervals corresponding to 40% An operation section is arranged. According to this principle, the device B, the device C, and the device D are arranged in three, two, and one arbitrary sub time periods, respectively, of the ten sub time periods.

In the embodiment of Table 1, the total number (10 = 4 + 3 + 2 + 1) of the numbers corresponding to the driving time per unit time for each load module is equal to the total number of sub time sections ) Or less. In this case, the operation sections are arranged such that the operation sections of the respective load modules (apparatuses A, B, C, and D) do not overlap each other for a total of 10 sub-time sections. This is to disperse the driving time so that the drive of each load module does not proceed simultaneously for every sub time unit, so that the current amount is not concentrated at a specific moment.

FIG. 4 shows an example of the arrangement of the operation section according to the first embodiment of the step S220 of FIG. FIG. 4 is a flow chart illustrating the operation of the device A for the first, third, fifth, and ninth sub-time periods, the device B for the second, C 'is for the fourth and seventh sub-time periods, and' device D 'is the operation period for the tenth sub-time period. Here, the position of the sub time interval distributed for each load module is not necessarily limited to the case of FIG. 4, and there may be more various modifications.

In the case of FIG. 4, the operating sections are sequentially arranged in the order of the load modules (in descending order of A, B, C, and D) in which the ratio of driving time per unit time is high. Of course, it is also possible to sequentially arrange the operation sections in order of load modules having high current consumption per unit time in arrangement among the operation openings. In the case of Table 1, examples in which the order of A, B, C, and D are the same in the order of high drive time ratio and the order of high current consumption are shown, and this embodiment is not necessarily limited to this example.

Further, when arranging the operation sections, the operation sections of the respective load modules are distributed and arranged in a direction in which the deviation of the current consumption amount is minimized for each of the plurality of sub-time sections. This can be applied to both the driving time ratio reference and the operation interval setting process based on the current consumption reference. For example, in the case of the apparatus A having the highest current consumption, the respective operation ports are arranged so as not to be adjacent to each other for the sub time period, and this arrangement example can also be applied to the apparatus B and the like.

Table 2 shows information on the current consumption per unit time and the ratio of driving time required per unit time for each load module to be used in the second embodiment.

Load module Current consumption per unit time,
Percentage of driving time required per unit time Device A 200mA, 60% Device B 50mA, 40% Device C 30 mA, 30% Device D 10mA, 20%

In Table 2, the total number (10 = 6, 4 + 3 + 2) of the number of sub time segments corresponding to the ratio of driving time per unit time to each load module (15 = . In such a case, it is necessary to arrange such that overlapping occurs between the operation ports of the plurality of load modules in a part or all of the sub time periods of the plurality of sub time sections.

FIG. 5 shows an example of the arrangement of the operation section according to the second embodiment of the step S220 of FIG. As shown in FIG. 5, 'device A' among the respective load modules is arranged between the first, second, fourth, fifth, eighth, and ninth sub time intervals. The device B is arranged between the operation zones for the third, sixth, seventh, and tenth sub time periods so as not to overlap with the operation space of the device A '. Hereinafter, the device C and the device D are arranged such that the operation areas overlap each other. The device C is arranged for the third, sixth and tenth sub time sections, the device D is arranged for the first and eighth sub time sections As shown in Fig. Here, the position of the sub time interval distributed for each load module is not necessarily limited to the case of FIG. 5, and there may be more various modifications.

In the case of FIG. 5, the operation sections are sequentially arranged in order of load modules (A, B, C, and D in order) having a high driving time ratio per unit time. Of course, it is also possible to sequentially arrange the operation sections in order of load modules having high current consumption per unit time in arrangement among the operation openings. Table 2 shows examples of cases in which the order of high driving time ratio and the order of high current consumption are the same (in order of A, B, C, and D), but the present embodiment is not necessarily limited to such an example.

Further, when arranging the operation sections, the operation sections of the respective load modules are distributed and arranged in a direction in which the deviation of the current consumption amount is minimized for each of the plurality of sub-time sections. This can be applied to both the driving time ratio reference and the operation interval setting process based on the current consumption reference.

For example, as shown in FIG. 5, all of the 10 sub-time periods are arranged in the order of the devices A and B, and then, during the operation period of the device C, . Referring to Table 2, since the apparatus A consumes more current than the apparatus B, the operating period of the apparatus C is arranged so as to overlap with the operating range of the apparatus B, not the operating range of the apparatus A. That is, an operation period of the device C is allocated to three selected sub time periods of the third, sixth, seventh, and tenth sub time periods allocated to the operation period of the device B.

Then, at the time of arrangement of the device D, one device is first allocated to the seventh sub-time period that is allocated to the operation interval of the device B with the lowest current consumption among all the 10 sub-time intervals. Then, the remaining one for the device D is the device B and the device B, and the device D for the device B and the device D for the third, the sixth, the seventh, and the tenth, And is placed in the seventh sub-time period with the lowest current consumption. It should be noted that the device D corresponds to a device requiring two sub-time intervals, and one of the two operation intervals for the device D is already arranged in the seventh sub-time period, (The third or sixth sub time interval in which the devices B and C are overlapped with each other) among the nine sub time periods except for the sub time period. At this time, although the operation period of the device D can be arranged in the interval of the lowest current consumption as described above, the operation period of the device D can be set to the first, second, fourth, fifth, It is also possible to arrange the operation period of the device D in the interval. The embodiment of FIG. 5 is an example in which the operation period for the device D is arranged in the seventh sub time period and the third sub time period, respectively.

This process is repeated until the current consumption (200mA) of device A is greater than the sum of the current consumption of devices B and C (80mA) or the current consumption of devices B and D (60mA) (80mA) is based on the sum of the current consumption of devices B and D (60mA). In addition, in the present embodiment, it is possible to further add a substantial time interval deviation calculation process for minimizing the deviation of the total current consumption for each sub time interval.

FIG. 6 shows an example in which the current consumption variation over time is reduced according to an embodiment of the present invention. In FIG. 6, it can be seen that a peak point of the current consumption occurs intermittently when a plurality of load modules are simultaneously driven in the case of the embodiment A of the present invention. However, in the case of B according to the present embodiment, it can be confirmed that, even when a plurality of load modules are simultaneously driven, the operation intervals for the respective load modules are distributed and arranged in each of the minute time periods, thereby significantly reducing the variation in current consumption over time . In this way, according to the present embodiment, the amount of load current per hour drawn from the battery is adjusted to be small according to the Peukert's Law, so that more energy can be drawn out and used, .

As described above, according to the present invention, the energy load between the load modules in the terminal is temporally dispersed to reduce the instantaneous maximum load factor of the battery and maximize the available energy capacity of the battery. That is, the present invention can limit the maximum instantaneous energy amount over time and allocate the energy amount demand of each load module that can be allocated within the individual time interval, thereby efficiently managing the battery energy of the terminal .

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100: electricity availability management device 110:
120: operation section arrangement section 130: drive signal transmission section

Claims (16)

A method for managing an electricity availability using an electricity availability management apparatus,
Receiving a driving demand time ratio per unit time and a current consumption amount per unit time from a plurality of load modules;
Distributing an operation period of the plurality of load modules according to time with respect to a plurality of sub time periods constituting the unit time by considering the drive time ratio per unit time; And
And transmitting a corresponding on-off drive signal between the individual operation ports of the load module to the corresponding load module,
The step of distributing and arranging the operation periods of the plurality of load modules according to time may include:
For each of the load modules, an operation section of the load module is arranged in a part of a sub time period corresponding to the drive time ratio per unit time among the plurality of sub time sections, And sequentially arranging the operation sections in module order. A method for managing an electricity availability using an electricity availability management apparatus,
Receiving a driving demand time ratio per unit time and a current consumption amount per unit time from a plurality of load modules;
Distributing an operation period of the plurality of load modules according to time with respect to a plurality of sub time periods constituting the unit time by considering the drive time ratio per unit time; And
And transmitting a corresponding on-off drive signal between the individual operation ports of the load module to the corresponding load module,
The step of distributing and arranging the operation periods of the plurality of load modules according to time may include:
For each of the load modules, an operation section of the load module is arranged in a part of a sub-time interval corresponding to the drive time ratio per unit time among the plurality of sub-time sections, And the operation period is sequentially arranged. The method according to claim 1 or 2,
When the total sum of the numbers corresponding to the driving time per unit time for each of the load modules is smaller than or equal to the total number of the sub time periods,
And arranging the operation periods of the plurality of load modules so that the operation sections of the load modules do not overlap with each other in the plurality of sub time sections. The method according to claim 1 or 2,
When the total sum of the numbers corresponding to the driving time per unit time for each of the load modules is larger than the total number of the sub time periods,
So that overlapping occurs between the operation ports of the plurality of load modules in a part or all of the sub time intervals among the plurality of sub time intervals. delete The method according to claim 1,
The step of distributing and arranging the operation periods of the plurality of load modules according to time may include:
Wherein the operating periods of the plurality of load modules are distributed and arranged such that the deviation of the current consumption amount is minimized for each of the plurality of sub time periods. delete The method of claim 2,
The step of distributing and arranging the operation periods of the plurality of load modules according to time may include:
Wherein the operating periods of the plurality of load modules are distributed and arranged such that the deviation of the current consumption amount is minimized for each of the plurality of sub time periods. An information collecting unit for receiving a driving demand time ratio per unit time and a current consumption amount per unit time from a plurality of load modules;
An operation section arrangement section which distributes and arranges operation sections of the plurality of load modules with respect to the plurality of sub time sections constituting the unit time in consideration of the drive request time ratio per unit time; And
And a drive signal transmitter for transmitting a corresponding on-off drive signal between the individual operation ports of the load module to the corresponding load module,
Wherein the operation section arrangement section comprises:
For each of the load modules, an operation section of the load module is arranged in a part of a sub time period corresponding to the drive time ratio per unit time among the plurality of sub time sections, And sequentially arranging the operation sections in order of modules. An information collecting unit for receiving a driving demand time ratio per unit time and a current consumption amount per unit time from a plurality of load modules;
An operation section arrangement section which distributes and arranges operation sections of the plurality of load modules with respect to the plurality of sub time sections constituting the unit time in consideration of the drive request time ratio per unit time; And
And a drive signal transmitter for transmitting a corresponding on-off drive signal between the individual operation ports of the load module to the corresponding load module,
Wherein the operation section arrangement section comprises:
For each of the load modules, an operation section of the load module is arranged in a part of a sub-time interval corresponding to the drive time ratio per unit time among the plurality of sub-time sections, And the operation section is sequentially arranged. The method according to claim 9 or 10,
When the total sum of the numbers corresponding to the driving time per unit time for each of the load modules is smaller than or equal to the total number of the sub time periods,
And arranges the operation sections of the plurality of load modules so that the operation sections of the load modules do not overlap with each other in the plurality of sub time sections. The method according to claim 9 or 10,
When the total sum of the numbers corresponding to the driving time per unit time for each of the load modules is larger than the total number of the sub time periods,
Wherein the plurality of load modules are arranged such that overlap occurs between the operation ports of the plurality of load modules in a partial or entire sub time interval among the plurality of sub time intervals. delete The method of claim 9,
Wherein the operation section arrangement section comprises:
And distributes the operation sections of the plurality of load modules so as to minimize the deviation of the current consumption amount for each of the plurality of sub time periods. delete The method of claim 10,
Wherein the operation section arrangement section comprises:
And distributes the operation sections of the plurality of load modules so as to minimize the deviation of the current consumption amount for each of the plurality of sub time periods.

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