CN105404575A - Energy consumption measurement method and apparatus for application in mobile terminal - Google Patents

Energy consumption measurement method and apparatus for application in mobile terminal Download PDF

Info

Publication number
CN105404575A
CN105404575A CN201510705764.5A CN201510705764A CN105404575A CN 105404575 A CN105404575 A CN 105404575A CN 201510705764 A CN201510705764 A CN 201510705764A CN 105404575 A CN105404575 A CN 105404575A
Authority
CN
China
Prior art keywords
mobile terminal
application
nextport
hardware component
energy consumption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510705764.5A
Other languages
Chinese (zh)
Inventor
高鹏
郭骞
石聪聪
余勇
范杰
李尼格
俞庚申
曹宛恬
冯谷
叶云
鲍兴川
蒋诚智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Smart Grid Research Institute of SGCC
Original Assignee
State Grid Corp of China SGCC
Smart Grid Research Institute of SGCC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Smart Grid Research Institute of SGCC filed Critical State Grid Corp of China SGCC
Priority to CN201510705764.5A priority Critical patent/CN105404575A/en
Publication of CN105404575A publication Critical patent/CN105404575A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3058Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
    • G06F11/3062Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations where the monitored property is the power consumption
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/34Recording or statistical evaluation of computer activity, e.g. of down time, of input/output operation ; Recording or statistical evaluation of user activity, e.g. usability assessment
    • G06F11/3452Performance evaluation by statistical analysis
    • 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 THEIR OWN ENERGY USE
    • Y02D10/00Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

The invention relates to an energy consumption measurement method and apparatus for an application in a mobile terminal. The method comprises: obtaining power consumption values P of a hardware component of the mobile terminal in different states; running the application in the mobile terminal, obtaining an application code analysis result Ca, and describing the analysis result Ca; and in combination with the application code analysis result Ca and the power consumption values P, calculating the energy consumption E of the application in the mobile terminal, so that accurate measurement of the energy consumption of the application is realized. The method is used for guiding development personnel to measure the energy consumption of the application in the mobile terminal, so that the problem that existing measurement of energy consumption of an application in a mobile terminal is non-standard can be solved, the energy consumption of the application in the mobile terminal is optimized and reduced, and the continuous service time is prolonged on the premise of limited power conditions.

Description

A kind of mobile terminal application energy consumption measure and device
Technical field
The present invention relates to a kind of measure and device, be specifically related to a kind of mobile terminal application energy consumption measure and device.
Background technology
In recent years, mobile terminal market is fast-developing just rapidly and vigorously.But coming to a halt all the year round along with battery manufacturing process, the energy has become the development bottleneck of mobile terminal device, and energy consumption also affects reliability and the serviceable life of mobile terminal simultaneously.Current, a large amount of mobile terminals is all in long-play state.Because size of mobile terminals is usually all less, the increase of energy consumption can significantly improve the temperature of terminal device.According to statistics, the raising of every 15 degree celsius temperature of mobile device can make equipment failure rate double, and higher temperature also can affect the serviceable life of equipment.Therefore, for the mobile terminal device that many productive lifes concern safely, research mobile terminal application energy consumption measurement technology seems particularly important.
The energy consumption tolerance of mobile terminal application refers to power consumption when tolerance mobile terminal is applied in actual motion.At present, no matter be industry member or academic circle, Developmental Engineer or terminal user, started the energy consumption problem paying close attention to mobile terminal.But, the technology of energy consumption tolerance is also existed to tolerance coarse size, measures inefficient problem.These limitation make a large amount of Mobile solution more or less there is energy consumption waste problem.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of mobile terminal application energy consumption measure and device, solve the bad problems such as coarse size, efficiency that existing fast mobile terminal application energy consumption measurement technology exists are low.
The object of the invention is to adopt following technical proposals to realize:
A kind of mobile terminal application energy consumption measure, described method comprises:
(1) obtain mobile terminal nextport hardware component NextPort be in different conditions under power consumption number P;
(2) run application program for mobile terminal, obtain application code analysis result Ca, and analysis result Ca is described;
(3) connected applications code analysis result Ca and power consumption number P, calculates mobile terminal application energy consumption E.
Preferably, in described step (1), mobile terminal nextport hardware component NextPort comprises Display, WiFi and GPS; Described state comprises opening, duty and closed condition.
Preferably, in described step (1), power checker is adopted to obtain mobile terminal module dissipation value P; When there being application program to perform, processor utilizes dynamic electric voltage and frequency adjustment technology DVFS, according to predefined voltage to frequency table dynamic adjustments operating voltage and frequency; When performing without application program, processor is in IDLE state, and P is minimum for its power consumption number.
Preferably, obtain application code analysis result Ca in described step (2) and comprise, call the hardware component type of described mobile terminal, component call number of times, component call probability and component call time by application code.
Further, the expression formula of described application code analysis result Ca is:
Ca=<S,N,C,t>;
Wherein, S is the component type that this application code calls; Wherein, S={S1, S2 ..., Sm} represents the m class nextport hardware component NextPort that mobile terminal comprises; N is the number of times that this application code calls nextport hardware component NextPort; C is the probability that this application code calls nextport hardware component NextPort; T is the time that this application code calls nextport hardware component NextPort.
Preferably, the method for described step (3) calculating mobile terminal application energy consumption E comprises: according to module dissipation value P and application code analysis result C a, obtain application energy consumption E, its expression formula is:
E = &Sigma; i = 1 k &Sigma; j = 1 k P ( C P U ) j * t ( C P U ) j + N i j * P i j * C i j * t i j
In formula, represent the i-th class component, i ∈ S, S={S1, S2 ..., Sm}, wherein S represents the nextport hardware component NextPort set that mobile terminal comprises; P (CPU) jfor CPU is in the power consumption number under jth kind state, t jfor CPU is in the time under jth kind state, N i jbe the call number under the i-th class component is in jth kind state, P i jbe the power consumption number of the i-th class nextport hardware component NextPort under jth kind state, C i jbe that the i-th class nextport hardware component NextPort calls probability, t under jth kind state i jbe the allocating time of the i-th class nextport hardware component NextPort under jth kind state.
A kind of mobile terminal application energy consumption measurement apparatus, described device comprises: control module, power checker, time measurement device, code analysis unit, performance element and mobile terminal nextport hardware component NextPort; The code analysis unit be connected with control module is interconnected with mobile terminal nextport hardware component NextPort and performance element respectively; Described mobile terminal nextport hardware component NextPort is connected with time measurement device with power checker respectively.Wherein,
Described control module, for running application program for mobile terminal, calls application code;
Described code analysis unit, for obtaining application code analysis result Ca;
Described power checker, for obtaining mobile terminal module dissipation value P;
Described time measurement device, for the allocating time of record move terminal hardware assembly under different conditions;
Described performance element, for calculating mobile terminal application energy consumption E.
Compared with the prior art, the beneficial effect that the present invention reaches is:
The present invention is by the energy consumption analysis to mobile terminal nextport hardware component NextPort, obtain the power consumption values of each assembly, be weighted applying the assembly related to according to application code analysis result again, draw the energy consumption measure that a kind of mobile terminal is applied and device, instruct developer and business personnel to the tolerance of mobile terminal application energy consumption.Introduce the acquisition of assembly power consumption values, application code analysis and application energy consumption analysis, thus realize optimization and the reduction of mobile terminal application energy consumption, under the prerequisite that Power Supplies Condition is limited, increase the time of continuous service.
Solve the lack of standardization of existing mobile terminal application energy consumption tolerance, more specification, accurately application energy consumption tolerance can be instructed.
Accompanying drawing explanation
Fig. 1 is mobile terminal application energy consumption measure process flow diagram provided by the invention;
Fig. 2 is mobile terminal application energy consumption measurement apparatus structural representation provided by the invention;
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, a kind of mobile terminal application energy consumption measure, described method comprises:
(1) obtain mobile terminal nextport hardware component NextPort be in different conditions under power consumption number P (Componentspowerconsumptionvalues), mobile terminal nextport hardware component NextPort comprises Display, WiFi, GPS and NIC (networkinterfacecard) etc.; Described different conditions comprises opening, duty and closed condition etc.
In step (1), power checker is adopted to obtain mobile terminal module dissipation value P; Such as control certain assembly of mobile terminal by control module, make this assembly be in opening (ON), show that this assembly is in the power consumption number under this state by power checker; Control mobile terminal application by control module to run, and control this assembly in running order (ACTIVE), show that this assembly is in the power consumption number under this state by power checker.With reference to mode above, control each assembly of mobile terminal by control module, make each assembly be in each duty, measure concrete power consumption number, thus calculate this assembly be in different conditions under power consumption number P.(4) module dissipation value table is set up according to the power consumption number under different conditions of each assembly obtained, as shown in table 1.
Hardware component states and corresponding power consumption table
When there being application program to perform, processor utilizes dynamic electric voltage and frequency adjustment technology DVFS, according to predefined voltage to frequency table dynamic adjustments operating voltage and frequency; When performing without application program, processor is in IDLE state, and P is minimum for its power consumption number.
The energy consumption analysis device configuration file (PowerProfile.xml) that each module dissipation value P of such as Android mobile terminal can provide according to application framework obtains.When performing without application program, processor is in IDLE state, has lowest power consumption.When application program performs on a processor, processor utilizes dynamic electric voltage and frequency adjustment technology (dynamicvoltageandfrequencyscale, DVFS), according to predefined voltage to frequency table dynamic adjustments operating voltage and frequency to save battery power.
(2) run application program for mobile terminal, obtain application code analysis result Ca (Codeanalysis), and analysis result Ca is described; Obtain application code analysis result Ca in step (2) to comprise, call the hardware component type of described mobile terminal, component call number of times, component call probability and component call time by application code.
The expression formula of described application code analysis result Ca is:
Ca=<S,N,C,t>;
Wherein, S is the component type that this application code calls; Wherein, S={S1, S2 ..., Sm} represents the m class nextport hardware component NextPort that mobile terminal comprises; N is the number of times that this application code calls nextport hardware component NextPort; C is the probability that this application code calls nextport hardware component NextPort; T is the time that this application code calls nextport hardware component NextPort.
(3) connected applications code analysis result Ca and power consumption number P, calculates mobile terminal application energy consumption E (ApplicationEnergyConsumptionCalculation).Its method comprises: according to module dissipation value P and application code analysis result C a, the expression formula obtaining application energy consumption E is:
E = &Sigma; i = 1 k &Sigma; j = 1 k P ( C P U ) j * t ( C P U ) j + N i j * P i j * C i j * t i j
In formula, represent the i-th class component, i ∈ S, S={S1, S2 ..., Sm}, wherein S represents the nextport hardware component NextPort set that mobile terminal comprises; P (CPU) jfor CPU is in the power consumption number under jth kind state, t jfor CPU is in the time under jth kind state, N i jbe the call number under the i-th class component is in jth kind state, P i jbe the power consumption number of the i-th class nextport hardware component NextPort under jth kind state, C i jbe that the i-th class nextport hardware component NextPort calls probability, t under jth kind state i jbe the allocating time of the i-th class nextport hardware component NextPort under jth kind state.
As shown in Figure 2, a kind of mobile terminal application energy consumption measurement apparatus, described device comprises: control module, power checker, time measurement device, code analysis unit, performance element and mobile terminal nextport hardware component NextPort; The code analysis unit be connected with control module is interconnected with mobile terminal nextport hardware component NextPort and performance element respectively; Described mobile terminal nextport hardware component NextPort is connected with time measurement device with power checker respectively.Wherein,
Described control module, for running application program for mobile terminal, calls application code;
Described code analysis unit, for obtaining application code analysis result Ca;
Described power checker, for obtaining mobile terminal module dissipation value P;
Described time measurement device, for the allocating time of record move terminal hardware assembly under different conditions;
Described performance element, for calculating mobile terminal application energy consumption E.
For convenience of description, our hypothesis has the tolerance example of following mobile terminal applies:
Certain corporation plan measures all kinds of Mobile solution on GT-I9108 mobile terminal, realizes the tolerance to this terminal applies energy consumption.Analyze according to the measure of this patent mobile terminal application energy consumption, specific embodiment is as follows:
1, following table is for obtaining the power consumption number of each assembly on GT-I9108 mobile terminal.
2, run map software, Games Software, the music software of GT-I9108 mobile terminal, application code analysis is carried out to these three application software.The available Ca of application code analysis result of map software arepresent, the available Ca of application code analysis result of Games Software brepresent, the available Ca of application code analysis result of music software crepresent, Ca a=<S i, N i, C i, t ithe assembly that > relates to mainly comprises WiFi, GPS etc., and each assembly correspond to respective N under different conditions i, C i, t i; Ca b=<S i, N i, C i, t ithe assembly that > relates to mainly comprises WiFi, Display etc., Ca c=<S i, N i, C i, t ithe assembly that > relates to mainly comprises WiFi, Bluetooth etc.
3, according to GT-I9108 mobile terminal module dissipation value table and application code analysis result, the Formal Representation mode of GT-I9108 mobile terminal map software, Games Software, music software application energy consumption is determined:
E (t) a=E (CPU)+E 2 j+ E 3 j+ E i j(i, j belong to natural number)
E (t) b=E (CPU)+E 2 j+ E 4 j+ E i j(i, j belong to natural number)
E (t) c=E (CPU)+E 2 j+ E 5 j+ E i j(i, j belong to natural number)
E(CPU)=P(CPU) j*t j;E 2 j=N 2 j*P 2 j*C 2 j*t 2 j;E 3 j=N 3 j*P 3 j*C 3 j*t 3 j
E 4 j=N 4 j*P 4 j*C 4 j*t 4 j;E 5 j=N 5 j*P 5 j*C 5 j*t 5 j
E i j=N i j* P i j* C i j* t i j(i, j belong to natural number)
Wherein, P (CPU) represent CPU be in different conditions under energy consumption, E 2 jexpression WiFi is in the energy consumption under different conditions, E 3 jexpression GPS is in the energy consumption under different conditions, E 4 jexpression Diaplay is in the energy consumption under different conditions, E 5 jexpression Bluetooth is in the energy consumption under different conditions, E i jrepresent certain class component be in different conditions under energy consumption.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.

Claims (7)

1. a mobile terminal application energy consumption measure, is characterized in that, described method comprises:
(1) obtain mobile terminal nextport hardware component NextPort be in different conditions under power consumption number P;
(2) run application program for mobile terminal, obtain application code analysis result Ca, and analysis result Ca is described;
(3) connected applications code analysis result Ca and power consumption number P, calculates mobile terminal application energy consumption E.
2. the method for claim 1, is characterized in that, in described step (1), mobile terminal nextport hardware component NextPort comprises Display, WiFi and GPS; Described state comprises opening, duty and closed condition.
3. the method for claim 1, is characterized in that, in described step (1), adopts power checker to obtain mobile terminal module dissipation value P; When there being application program to perform, processor utilizes dynamic electric voltage and frequency adjustment technology DVFS, according to predefined voltage to frequency table dynamic adjustments operating voltage and frequency; When performing without application program, processor is in IDLE state, and P is minimum for its power consumption number.
4. the method for claim 1, it is characterized in that, obtain application code analysis result Ca in described step (2) to comprise, call the hardware component type of described mobile terminal, component call number of times, component call probability and component call time by application code.
5. method as claimed in claim 4, it is characterized in that, the expression formula of described application code analysis result Ca is:
Ca=<S,N,C,t>;
Wherein, S is the component type that this application code calls; Wherein, S={S1, S2 ..., Sm} represents the m class nextport hardware component NextPort that mobile terminal comprises; N is the number of times that this application code calls nextport hardware component NextPort; C is the probability that this application code calls nextport hardware component NextPort; T is the time that this application code calls nextport hardware component NextPort.
6. the method for claim 1, is characterized in that, the method that described step (3) calculates mobile terminal application energy consumption E comprises: according to module dissipation value P and application code analysis result C a, obtain application energy consumption E, its expression formula is:
E = &Sigma; i = 1 k &Sigma; j = 1 k P ( C P U ) j * t ( C P U ) j + N i j * P i j * C i j * t i j
In formula, represent the i-th class component, i ∈ S, S={S1, S2 ..., Sm}, wherein S represents the nextport hardware component NextPort set that mobile terminal comprises; P (CPU) jfor CPU is in the power consumption number under jth kind state, t jfor CPU is in the time under jth kind state, N i jbe the call number under the i-th class component is in jth kind state, P i jbe the power consumption number of the i-th class nextport hardware component NextPort under jth kind state, C i jbe that the i-th class nextport hardware component NextPort calls probability, t under jth kind state i jbe the allocating time of the i-th class nextport hardware component NextPort under jth kind state.
7. a mobile terminal application energy consumption measurement apparatus, is characterized in that, described device comprises: control module, power checker, time measurement device, code analysis unit, performance element and mobile terminal nextport hardware component NextPort; The code analysis unit be connected with control module is interconnected with mobile terminal nextport hardware component NextPort and performance element respectively; Described mobile terminal nextport hardware component NextPort is connected with time measurement device with power checker respectively.Wherein,
Described control module, for running application program for mobile terminal, calls application code;
Described code analysis unit, for obtaining application code analysis result Ca;
Described power checker, for obtaining mobile terminal module dissipation value P;
Described time measurement device, for the allocating time of record move terminal hardware assembly under different conditions;
Described performance element, for calculating mobile terminal application energy consumption E.
CN201510705764.5A 2015-10-27 2015-10-27 Energy consumption measurement method and apparatus for application in mobile terminal Pending CN105404575A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510705764.5A CN105404575A (en) 2015-10-27 2015-10-27 Energy consumption measurement method and apparatus for application in mobile terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510705764.5A CN105404575A (en) 2015-10-27 2015-10-27 Energy consumption measurement method and apparatus for application in mobile terminal

Publications (1)

Publication Number Publication Date
CN105404575A true CN105404575A (en) 2016-03-16

Family

ID=55470073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510705764.5A Pending CN105404575A (en) 2015-10-27 2015-10-27 Energy consumption measurement method and apparatus for application in mobile terminal

Country Status (1)

Country Link
CN (1) CN105404575A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111478824A (en) * 2020-03-20 2020-07-31 苏州浪潮智能科技有限公司 Network card power consumption testing method, device and system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102043697A (en) * 2010-07-29 2011-05-04 北京大学 System unit energy consumption simulation method based on clock cycle precision
CN103049384A (en) * 2012-12-29 2013-04-17 中国科学院深圳先进技术研究院 Automatic generating frame of multi-core-based multithread limit energy consumption testing source program
CN103324777A (en) * 2013-05-21 2013-09-25 网视科技(杭州)有限公司 Android application program energy consumption modeling method based on time
US20130311803A1 (en) * 2011-01-25 2013-11-21 Zte Corporation Energy-saving device and method for portable terminal
CN104461846A (en) * 2014-12-02 2015-03-25 百度在线网络技术(北京)有限公司 Method and device for detecting power consumption of application program
CN104765438A (en) * 2015-04-29 2015-07-08 集怡嘉数码科技(深圳)有限公司 Method for controlling power consumption and mobile terminal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102043697A (en) * 2010-07-29 2011-05-04 北京大学 System unit energy consumption simulation method based on clock cycle precision
US20130311803A1 (en) * 2011-01-25 2013-11-21 Zte Corporation Energy-saving device and method for portable terminal
CN103049384A (en) * 2012-12-29 2013-04-17 中国科学院深圳先进技术研究院 Automatic generating frame of multi-core-based multithread limit energy consumption testing source program
CN103324777A (en) * 2013-05-21 2013-09-25 网视科技(杭州)有限公司 Android application program energy consumption modeling method based on time
CN104461846A (en) * 2014-12-02 2015-03-25 百度在线网络技术(北京)有限公司 Method and device for detecting power consumption of application program
CN104765438A (en) * 2015-04-29 2015-07-08 集怡嘉数码科技(深圳)有限公司 Method for controlling power consumption and mobile terminal

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SHUAI HAO等: "Estimating Mobile Application Energy", 《ICSE ˊ13 PROCEEDINGS OF THE 2013 INTERNATIONAL CONFERENCE ON SOFTWARE ENGINEERING》 *
段林涛等: "Android应用程序能耗分析与建模研究", 《电子科技大学学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111478824A (en) * 2020-03-20 2020-07-31 苏州浪潮智能科技有限公司 Network card power consumption testing method, device and system

Similar Documents

Publication Publication Date Title
US11011768B2 (en) Power modulation for fuel cell powered datacenters
US8698471B2 (en) Systems and methods for a digital-to-charge converter (DQC)
CN101477399B (en) Power management in electronic systems
CN103389931B (en) A kind of power supply self-checking device and calibration steps thereof
CN102624546B (en) Control method, control equipment and control system for capping power consumption
US20130144545A1 (en) Cpu power testing apparatus and method
CN103957320B (en) Based on application power consumption arrangement method and the system of mobile terminal
CN104601822A (en) Power consumption calculation system and method of mobile terminal application
EP4092896A1 (en) Computational current sensor
CN105404575A (en) Energy consumption measurement method and apparatus for application in mobile terminal
Khriji et al. Dynamic voltage and frequency scaling and duty-cycling for ultra low-power wireless sensor nodes
CN108008340A (en) A kind of radio energy table power consumption test system
CN106849792B (en) The energy consumption calculation and energy conservation measure appraisal procedure of motor device and group system
CN103346597B (en) Charging device
CN102420899B (en) Device and method for automatically switching working state of Bluetooth terminal equipment according to working state of mainframe
CN103428320A (en) Smart cell phone power dissipation estimation method based on model fitting
CN102801581B (en) Method for predicting WEB service connection success rate
CN204118792U (en) A kind of UEM
Chalal et al. Unified Environment for Real Time Control of Hybrid Energy System Using Digital Twin and IoT Approach
CN204165598U (en) There is the gas intelligent metering system of real time alarm function
CN203275605U (en) Generator operation state monitoring and displaying device
CN110858263B (en) Electrical circuit modeling method, simulation test system and simulation terminal
Zhu et al. Supercapacitor energy buffering for self-sustainable, continuous sensing systems
Chan et al. Context-aware system design
CN204154880U (en) Live electrical power management system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160316

RJ01 Rejection of invention patent application after publication