TW201214100A - Power management method - Google Patents

Power management method Download PDF

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Publication number
TW201214100A
TW201214100A TW099133257A TW99133257A TW201214100A TW 201214100 A TW201214100 A TW 201214100A TW 099133257 A TW099133257 A TW 099133257A TW 99133257 A TW99133257 A TW 99133257A TW 201214100 A TW201214100 A TW 201214100A
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Prior art keywords
function
past
power consumption
functions
preset
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TW099133257A
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Chinese (zh)
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TWI416314B (en
Inventor
Kuo-Tsung Huang
Cheng-Yu Lee
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Compal Communications Inc
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/32End-user application control systems
    • Y02B70/3208End-user application control systems characterised by the aim of the control
    • Y02B70/3216General power management systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing
    • Y02D10/10Reducing energy consumption at the single machine level, e.g. processors, personal computers, peripherals or power supply
    • Y02D10/14Interconnection, or transfer of information or other signals between, memories, peripherals or central processing units
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Systems supporting the management or operation of end-user stationary applications, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y04S20/20End-user application control systems
    • Y04S20/22End-user application control systems characterised by the aim of the control
    • Y04S20/221General power management systems

Abstract

A power management method is used for managing power of an electronic device. The electronic device is powered by at least one battery and capable of executing a plurality of functions. Each function has an average power consumption rate. The power management method includes steps of monitoring a current capacity of the battery; calculating a past power consumption of each function for a first past period of time; calculating a residual operating time of the electronic device according to the current capacity of the battery and the average power consumption rate of each function; comparing the past power consumption of each function with a predetermined power consumption when the residual operating time is lower than a predetermined operating time; and disabling the function when the past power consumption of the function is larger than the predetermined power consumption. Accordingly, the operating time can be extended effectively.

Description

201214100 VI. Description of the Invention: [Technical Field] The present invention relates to a power management method, and more particularly to a power management method for managing a power source of an electronic device powered by a battery. [Prior Art] With the increasing complexity of various electronic devices (such as mobile communication, notebook computers or e-books, robots, etc.), in addition to the necessary functions (for example, the mobile communication device can be a call function, a notebook type) The computer can be used for document processing functions, e-books can be read functions, robots can be used as main functions, etc., and it has game functions, multimedia, and navigation, so the power consumption is considerable. For the convenience of carrying, the removable or mobile electronic device mostly uses the battery as the source of power supply. Therefore, the user does not have power management for the electronic device, and the user may use the subordinate Wei, and the user may quickly exhaust the «, (10) Use the necessary functions without sufficient power. For example, 5, the necessary functions of the communication device are the standby function and the call function, and the subordinate Wei Kescale plays the Wei and the multi-missing function f. If the person uses the action to pass the device, listen to music, or watch the movie, the battery is exhausted. When the user needs to make an emergency call, there is not enough power for the user to make a call. This will cause great inconvenience in use. Japanese Patent Application No. 201214100 [Invention] Therefore, the present invention provides a power management method for managing the power supply of an electronic device powered by a battery to solve the above problem. According to an embodiment, the power management method of the present invention is for managing the power of an electronic device. The electronic device is powered by at least a battery to perform a plurality of functions, each of which has an average power consumption. The power management method includes the following steps: monitoring the battery-current power; calculating the power consumption of each function in a first past time; determining the electronic device based on the current power and the average power consumption of each function - Remaining usage time; comparing the past power consumption of each function with a preset power consumption when the remaining usage time is lower than a preset usage time; and turning off the corresponding function when the power consumption in the past is greater than the preset power consumption. According to another embodiment, the power management method of the present invention may further comprise the following steps: calling for calculating each of the functions in the -:: past one of the past usage times; when the remaining usage = is lower than the preset usage time , compares the past usage times of each function with a pre-3 usage count; and when the past usage times are less than the preset usage times, the function should be turned off. When the electronic device is used for a short period of time, the power management method of the present invention can be used to control the power consumption (i.e., the amount of impurities consumed in the past period). / or the number of past uses (that is, the past - period of time 201214100 to reduce the consumption of battery power, thereby extending the number of times the electricity is used), the use of the sub-device. DETAILED DESCRIPTION OF THE INVENTION AND EMBODIMENT OF THE INVENTION [Embodiment] The invention of the present invention is based on the management of electronic devices. For example, the electronic device can be a portable electronic device or a hybrid electronic device, such as a mobile communication device, a notebook computer, an electronic book, a mobile phone, or the like. The electronic device is powered by at least a battery (e.g., a battery pack formed by a plurality of batteries) to perform a plurality of functions. These miscellaneous items may contain multiple subordinate functions to be cut off. For example, when the electronic device is a mobile communication device, the necessary functions may include a standby function and a call function, and the dependent function may include a multimedia play function, a game function, and a navigation function; when the electronic device is a notebook computer, The necessary functions may include a standby function and a word processing function, and the dependent functions may include a multimedia playing function, a game function, and a network function; when the electronic device is a t-book, the necessary functions may include a standby function and a reading function. The function may include a multimedia playing function and a game function, and when the electronic device is a robot, its necessary function may function as a main system, and the dependent function may include a mobile function or a multimedia function. It is important to note that the functions performed by different electronic devices are not the same, and the definition of necessary functions and dependent functions depends on the actual application' and is not limited to the above. 201214100 The following is an explanation of the use of electronic devices as mobile communication devices. The mobile communication device includes a standby function, a call function, a multimedia play function, a game function, and a navigation function, wherein the standby function and the call function are necessary functions, and the multimedia play function, the game function, and the navigation function are slave functions. Please refer to Fig. 1 which is a flow chart of a power management method according to an embodiment of the present invention. The power management method of the present invention can be implemented by a software program. First, the processor or controller in the mobile communication device first determines whether the power management program is started.

(Step S10). In practical applications, users can choose to enable or disable power management through the function menu. In addition, the ride can be checked by the i-wire or the user to define the power management program every other time. After the power management program is started, the power management program starts monitoring the current power of one of the batteries (step S12). Assuming that the power management program currently has a lower battery than the battery is fully charged (for example, 5〇%), the power management program will calculate the power consumption of each function in a first past time. SM), in which the past power consumption of the standby function is pa, the call function _ deduplication is Pb, the multimedia _ release _ past miscellaneous &, the past function of the game function is Pd, and the navigation Wei _ go Wei Wei & . After the mobile communication device is used for three days, the first past time can be:: The daily charging time can also be set by the user, for example, one day, twelve hours, six hours, etc., which are estimated by the current time. ° 夺 夺 可 可 实施 实施 实施 实施 实施 于此 于此 于此 于此 ’ ’ ’ ’ ’ ’ 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 每 魏 魏 魏 魏 魏

The flatness of the Cb' multimedia playback function is (3), and the past secret Pa of the average power consumption time of the wheel can be calculated by the following formula:

Formula one: 弋 = cX + cx+...+CI or one ^ P : C\ sc ta \ 广^ Λ aX^=cax£c /=1 on the formula - towel, (for standby function on the first - time 4 For the standby function in the first-last time, the second __ use of the push. If the first-last time mosquito is three days, by the above eight _^== 'this can be used in the past three days of past power consumption Pa In the same way, the past power consumption Pb~pe using the above-mentioned other functions is used. The loss is based on the current power consumption and the average power consumption per function -amp;~^, the power management program calculates the remaining use of one of the mobile communication devices. For example, the remaining usage time of the mobile communication device is calculated by Equation 2, which is described in the formula 2. In the formula 2, the pinitial is the initial power of the battery, which can be defined as the following two The first case: the battery is full, the initial battery charge can be assumed to be P. · 100% of the charge state; the second case: the mobile communication device has been used for two days' and it is assumed that 15 has been used. % of electricity' and 85% of the remaining power after rebooting, you can assume the battery The initial power Pinitial is 85% of the state of full charge. In addition, the battery level of the battery 201214100 can be known from the battery's specifications, for example, the battery capacity used is 8GGmAh. _ initial power = wire In the past - the sum of the past power consumption in the past, you can get the sum of the current power divided by the average power consumption of each function Ca ~ Ce ~ and '. The remaining usage time of the mobile communication device ^ electricity. After calculating the action rail device _ Yu (4) ^, the electricity will compare the remaining usage time Trest with a preset use time, / mileage time Trest is the ship paste T_ng ( ^ The time management program will = 1: the target power of the pool (return to step S12). ... When the remaining usage time τ is lower than the preset usage time Tsettmg, the power supply program will compare each of the subordinate functions. And the force sPe~Pe and - the first preset power consumption 'to determine whether each of the subordinate Wei's past power consumption PC~PQ is greater than the first pre-1# power consumption (step S20). When the past power consumption Pc~p_ When any one is greater than the first preset two-time, the power management program will close Corresponding subordinate function (step milk). In this embodiment, the __Tsetting and the first preset Wei can be preset values or set by the user. For example, suppose the preset usage time T y is 8 hours. The first preset power consumption is millimeter milliwatts, the past power consumption of the multimedia and body playback functions is Pc# 120 watts, and the past power consumption Pd of the game function is 8 〇 milliwatts' while the past power consumption of the navigation function is (9) milliwatts. When the remaining usage time of the 201214100 communication device is less than 8 hours, the multimedia power consumption function is due to the past power consumption Pc (120 milliwatts) of the multimedia playback function being greater than the first preset power consumption 〇〇〇 milliwatts) It will be turned off to extend the usage time of the necessary functions (the standby function and the call function are necessary functions in this embodiment). After the partial slave function is turned off, the power management program controls the mobile communication device to issue a message to prompt the user that the partial slave function has been turned off (step S24). That is, after the multimedia playing function is turned off, the mobile communication device can send a text message, vibrate or audible to prompt the user that the multimedia playing function has been turned off. After the partial shutoff is turned off, the power supply manifold will calculate the remaining time Trest', and again determine whether the recalculated remaining time ^ is greater than the preset use time Tsetting (step S26). If some subordinate functions are turned off, the remaining usage time will exceed the default setting. The Tsetting will continue to monitor the battery's target power (return to step S12). Conversely, if the remaining usage time U is lower than or equal, the pre-stay Tsetting 'the power management program will determine whether there is an unclosed slave function (step S28) e if there are still subordinate functions that have not been turned off, then Going back to step 20, the power g-hearted comparison compares the past power consumption Pd~Pe and the second preset miscellaneous (for example, 5() milliwatts of each subordinate function that have not been turned off, and the second power consumption is less than the above - Cai Miscellaneous). When the past pd~p_ towel is __ greater than the second preset power consumption, the power management process side _ should be a function and issue a prompt message (steps = 22 and S24), thereby achieving the extended fiber use time Trest, the goal of. In the same way, the pre-" power consumption can also be preset for the system or set by the user. 201214100 II: Base: Hair: = one:: Widely used as _ genus ^ As for the number of pre-mixed μ and the step size, the actual embodiment should be pre-described. In addition, the above-mentioned ith or second sigh can also be used as one of the past power consumptions of all slave functions. That is, when the remaining (4) is lower than or equal to the preset interval, the power management mode of the present invention can compare the related _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Huge ▲ Continue the above example. The subordinate functions that have not been closed are the game function and the navigation function. The past power consumption Pd of the game is 8 〇 mW, and the past power consumption of the navigation function is 60 mW. When the remaining usage time of the mobile communication device is still less than 8 hours, since the game skill _ past miscellaneous Pd (10) red) and navigation Wei _ de-power consumption (60 mW) are greater than the second preset power consumption mentioned above ( 5 〇m), so the game function and navigation function will be turned off' to extend the usage time of the necessary functions (in this embodiment, the standby function and the call function are necessary functions). After all the slave functions are turned off, the recalculated remaining usage time Trest is still lower than the preset usage time Tsetting', then the power management program will control the mobile communication device to send a message to prompt the lowest battery level (step S3〇) ). In other words, when there is no slave function that can be turned off, but the remaining usage time of the mobile communication device is still lower than or equal to the preset usage time Tsetting (for example, less than 8 hours), the mobile communication device will send a message. The user knows that the current battery level is close to the minimum power (eg 201214100 such as: 1G% of the battery full state or the battery voltage is 3 5V), and reminds the user to charge the mobile communication device. Then the power management program determines whether the current power is lower than the minimum power (step S32). When the current battery capacity is still greater than the minimum power, the power management program will continuously monitor the current battery power (return to step S12). If the user still does not charge the mobile communication device, the battery power is gradually consumed. When the current battery level is lower than the minimum battery level, the power management program will turn off the necessary functions (step s34). In this embodiment, since the standby function and the call function are necessary functions, the mobile communication device is turned off after the standby function and the call function are turned off. Referring to Figure 2, there is shown a flow chart of a power management method in accordance with another embodiment of the present invention. As shown in Fig. 2, this embodiment differs from the above-described embodiment in that "except for the past function of each function as a dependency of the __ dependent function"

The basis of the layer. The steps of the same label in Figure 1 and Figure 2 are the same as the original 3 = the same, no longer Wei. Assume that the power management program monitors the current power level, such as the battery full state - proportional ( Step su), the power management program will calculate each ^ = in - the past: the past ten times the number of times used to commit ~ order (step called ^ ^ media thief Wei _ to make money _ order, the past use of the service Wei) ^, And navigation Wei _ to repair domain is n for the financial user setting, for example, the second past time can be defined as 'seven days - days ... days, etc. In addition, it should be noted that the above | 12 201214100 to time and The second past time may be the same or different. In other words, the present invention can calculate the past power consumption and the past usage times of each function in the past same period (for example, three days), and can also calculate each function in the past time period separately. The past power consumption (for example, three days) and the past usage times in another period (for example, seven days). When the remaining usage time 1' is lower than or equal to a preset usage time Tsetting (the judgment result of step 18) Yes)) The source management program compares the power consumption of each slave function to the power consumption Pc~Pe and the preset power consumption to determine whether the past power consumption of each slave function is greater than the preset power consumption, and the power management program will Comparing the past usage times Nc~Ne of each subordinate function with the preset usage times to determine whether the past usage times Nc~Ne of each subordinate function is greater than the preset usage count (step S2〇). When the past power consumption Pc~ If any of the Pes is greater than the preset power consumption and/or any of the past usage times Nc~Ne is less than the preset number of uses, the power management program will close the corresponding slave function (step S22'). In the default, the preset usage time can be set by the system φ value or set by the user. For example, 'Assume that the preset usage time Tsetting is 8 hours, the preset power consumption is 1 〇〇 milliwatt, and the preset usage frequency is 5 times 'multimedia playback function's past power consumption Pc is 120 mW and past usage times Nc is 8 times' game function's past power consumption Pd is 8 〇 mW and past usage times Nd is 6 times' navigation function's past work Consumption Pe is 60 mW and the number of past uses is Ne 3. When the remaining usage time of the mobile communication device is less than 4 hours, the past power consumption of the multimedia playback function Pc (12 〇 mW) is greater than 13 201214100 Preset power consumption (100 mW) 'The past usage count Ne (3 times) of the navigation function is less than the preset usage count (5 times), so the multimedia playback function and navigation function will be turned off. It should be noted that 'except the first picture and the first In the exception shown in the figure 2, when the remaining usage time is lower than or equal to the preset usage time, the power management program of the present invention may first compare the past usage times and the preset usage times of each subordinate function to determine each Whether the past usage of a subordinate function is greater than the preset usage count. When the number of used times is less than the preset number of uses, the power manager will close the corresponding slave function. § In the past, the responsibility of the fiscal amount - greater than or equal to the preset number of times ❿ when the 'power supply program is screaming again — to do Wei's past miscellaneous and preset power consumption, to determine whether the past power consumption of each of the woven functions is Greater than the preset power consumption. When the power consumption of the past is greater than the power consumption, the power management program will turn off the corresponding slave function. In summary, when the remaining money time of the electronic device is lower than the preset time, the money management method of the present invention can be borrowed by __ (that is, the power consumption of the past time period = peach) is larger and / Or subordinate functions with less usage in the past (that is, in the past period of time: the number of times used), with ___, thereby extending the usage time of the necessary functions. Duck Patent Range 14 201214100 [Simplified Schematic] FIG. 1 is a flow chart of a power management method according to an embodiment of the present invention. 2 is a flow chart of a power management method according to another embodiment of the present invention. [Main component symbol description] S10~S34 steps

15

Claims (1)

  1. 201214100 VII. Patent application scope: 1. A power management method for managing the power supply of a sub-device. The electronic device is operated by at least - (4) 'to a plurality of functions' each - the functions have an average consumption The electric god, the source management method package steps: monitoring the current power of one of the at least one battery; calculating each of the functions in a first-last time - past power consumption; according to the current power and each - such The average power consumption of the function calculates a remaining usage time of the electronic device; when the remaining usage time is lower than the preset usage time, comparing the past power consumption of each of the functions with a preset power consumption; When the past miscellaneous is greater than the preset power consumption, the function should be turned off. 2. The power management method according to claim i, further comprising the steps of: calculating each of the functions in the second tree - the number of past uses; when the face uses _ below the simple And recording the past usage times and the preset usage times of each of the functions; and when the past usage times are less than the preset usage times, turning off the corresponding work 3. For example. The power management method of claim 2, wherein the first past time is the same as the second past time. 201214100 4. The power management method according to claim 2, wherein the function includes a plurality of slave functions, and the power management method further comprises the following steps: when the remaining fine time is lower than the preset, the _, compare each The past power consumption of the slave functions and the preset power consumption and/or comparing the past number of the slave V-functions with the preset number of uses; and when the past power consumption is greater than the preset When the power consumption and/or the past usage times are less than the preset usage times, the corresponding subordinate function is turned off. 5. For example. The power management method of claim 4, wherein the electronic device is a mobile communication device, and the dependent functions comprise at least one of the following groups: a multimedia play Wei, a game Wei, and a navigation function. 6. The power management method according to claim 4, further comprising the step of: after the slave function is turned off, the control device sends a message to indicate that the slave function has been turned off. 7. The method of electrical characterization according to claim 4, further comprising the steps of: controlling the electronic device to send a message if the (4) is less than the preset usage time. To indicate the minimum amount of charge of one of the at least one battery. 8. The power management method according to claim 7, wherein the functions include a plurality of necessary functions, and the power management method further comprises the following steps: 17 201214100 When the current power is lower than the minimum power, the necessary functions are turned off. . 9. The power management method of claim 8, wherein the electronic device is a mobile communication device, and the necessary functions include a standby function and a call function. The power management method of claim 1, wherein the electronic device is a portable electronic device or a mobile electronic device. ,figure·
    18
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI512451B (en) * 2014-03-06 2015-12-11 Univ Nat Chiao Tung Symbolic regression and clustering method for profiling energy consumption of handheld applications

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Publication number Priority date Publication date Assignee Title
TW200521658A (en) * 2003-12-18 2005-07-01 Mitac Int Corp Power consumption monitoring system
US7363517B2 (en) * 2003-12-19 2008-04-22 Intel Corporation Methods and apparatus to manage system power and performance
US7337339B1 (en) * 2005-09-15 2008-02-26 Azul Systems, Inc. Multi-level power monitoring, filtering and throttling at local blocks and globally
TW200823649A (en) * 2006-11-30 2008-06-01 Delta Electronics Inc System and method of power management

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI512451B (en) * 2014-03-06 2015-12-11 Univ Nat Chiao Tung Symbolic regression and clustering method for profiling energy consumption of handheld applications

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