CN102946497A - Method for reducing power consumption of smart phone during communication - Google Patents
Method for reducing power consumption of smart phone during communication Download PDFInfo
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- CN102946497A CN102946497A CN2012104639922A CN201210463992A CN102946497A CN 102946497 A CN102946497 A CN 102946497A CN 2012104639922 A CN2012104639922 A CN 2012104639922A CN 201210463992 A CN201210463992 A CN 201210463992A CN 102946497 A CN102946497 A CN 102946497A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a method for reducing the power consumption of a smart phone during communication, which comprises the following steps of: enabling the smart phone to center into the communication; enabling the smart phone to press close to an ear to shield a distance sensor PS, wherein system wakelock is not occupied by other modules; carrying out blank screen on the smart phone, and enabling a CPU (central processing unit) to enter into a dormant state; uploading an interception signal to the CPU by the distance sensor PS after the distance from the smart phone to ear reaches a threshold value; awakening the CPU; and lightening the screen by the control of the CPU. The smart phone is awakened in the manner of external interception by the method in the process of communication, the CPU is under the dormant state in the process of communication, and the CPU is awakened by the PS in an interception way when the smart phone leaves from the ear by a certain direction, so that under the condition that the user experience, the system function and the cost are not influenced, the power consumption current in the process of communication can be saved by 30mA-35mA, about 25% of communication power consumption can be reduced, and the cruising ability of the whole system, in particular to the mobile phone under multiple callings, can be greatly improved.
Description
Technical field
The present invention relates to a kind of method that reduces power consumption in the smart mobile phone conversation.
Background technology
Smart mobile phone is as a kind of terminal of portable and mobile model, power supply relies on battery fully, along with being on the increase of smart mobile phone function, its power consumption is also increasing, the user is also more and more higher to the requirement of smart mobile phone flying power, therefore, the low power dissipation design strategy has become in the smart mobile phone design a more and more urgent problems.
In cell phone system, have two processors on the hardware view at least, one is CPU, and one is MODEM, and CPU is system's primary processor, and MODEM is used for conversation to be processed.In communication process, MODEM can work always, and it can directly be delivered to voice signal in the audio frequency apparatus relevant in the system, finds that through checking this process need not participating in directly of CPU on present most platforms.
At present, distance-sensor (Proximity Sensor is generally arranged in the smart mobile phone of standard configuration, referred to as PS), be mainly used in communication process, judge mobile phone the place ahead whether have stop (namely whether in one's ear) automatically go out the screen and bright screen, can avoid like this in communication process owing to face touches the misoperation that touch-screen produces, play simultaneously the purpose that reduces power consumption.This process need three parts processes, and MODEM processes conversation, and PS reports current state, and the CPU accepting state is gone forward side by side, and going out of line correlation shielded and the processing of bright screen.In this case, in the communication process, must keep these three devices (CPU, MODEM, PS) all in running order, this looks seemingly a matter of course feelings, but power consumption is larger.
Since known in communication process, and the participating in directly of nonessential CPU, why not try every possible means to allow CPU in communication process, enter park mode? in the common intelligent mobile phone system, allow CPU in conversation, keep the very large purpose of wake-up states be for the information that receives PS to make corresponding processing (screen/bright screen goes out).And present, a lot of CPU have had the mechanism that receives external interrupt wakeup, and much PS also has interrupt mode, so we can adopt the mode of interruption to realize waking up of CPU fully.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, provide a kind of CPU of making in conversation, to enter resting state, and can intelligence wake up, in saving communication process, reduce power consumption about 25%, to particularly the make a phone call method of power consumption in the reduction smart mobile phone conversation that mobile phone flying power in the more situation has a distinct increment of whole system.
The objective of the invention is to be achieved through the following technical solutions: the method that reduces power consumption in the smart mobile phone conversation, be applicable to distance-sensor PS and have interrupt mode, central processor CPU has can outside wake the intelligent mobile phone platform that MODEM in interface and the conversation can not take the wake lock of system up, and it may further comprise the steps:
S1: mobile phone enters conversation;
S2: mobile phone is pressed close to ear and is covered the PS blank screen, takies wake lock without other modules again in the system;
S3: telephone system issues the SLEEP instruction to central processor CPU, and central processor CPU enters resting state;
S4: when mobile phone leaves ear, the distance that distance-sensor PS induction is left;
S5: when the distance of leaving reached certain threshold values, distance-sensor PS uploaded interrupt signal to central processor CPU, and interrupt signal transfers to can waking up on the interface pin outside of central processor CPU by the interruption pin of distance-sensor PS;
S6: wake central processor CPU up;
S7: central processor CPU control point bright screen curtain.
Central processor CPU can adopt the MTK6575 chip, and distance-sensor PS can adopt the tmd2771 chip.
The invention has the beneficial effects as follows: the smart mobile phone that all has interrupt mode for PS and CPU, when taking the wake lock of system without other programs again in the system, in communication process, allow CPU enter resting state, when leaving ear and reach certain distance, mobile phone interrupts waking up CPU by PS again, in the situation that does not affect user's experience and systemic-function and cost, can save static current of lcd 30mA～35mA in the communication process, reduce conversation power consumption about 25%, the mobile phone flying power that whole system is particularly made a phone call in the more situation has a distinct increment.
Description of drawings
Fig. 1 is flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, reduce the method for power consumption in the smart mobile phone conversation, be applicable to distance-sensor PS and have interrupt mode, central processor CPU has can outside wake the intelligent mobile phone platform that MODEM in interface and the conversation can not take the wake lock of system up, and it may further comprise the steps:
S1: mobile phone enters conversation;
S2: mobile phone is pressed close to ear and is covered the PS blank screen, takies wake lock without other programs again in the system;
S3: telephone system issues the SLEEP instruction to central processor CPU, and central processor CPU enters resting state;
S4: when mobile phone leaves ear, the distance that distance-sensor PS induction is left;
S5: when the distance of leaving reached certain threshold values, distance-sensor PS uploaded interrupt signal to central processor CPU, and interrupt signal transfers to can waking up on the interface pin outside of central processor CPU by the interruption pin of distance-sensor PS;
S6: wake central processor CPU up;
S7: central processor CPU control point bright screen curtain.
Central processor CPU can adopt MTK6575 chip or other to have the processor chips of the functional interface pin that can be waken up by external interrupt signal, and distance-sensor PS can adopt tmd2771 chip or other to have the induction chip of interrupt mode.
Below be that the conversation of two kinds of model machines before and after using this programme is communicated with average current value in rear a minute:
Model machine 1: use traditional scheme: (121.7+118.6)/2=120.15mA; Use this programme: (89.5+80.4)/2=85.95mA; Save: 34.2mA;
Model machine 2: use traditional scheme: (189+190)/2=189.5mA; Use this programme: (154.9+154.6)/2=154.75mA; Save: 34.75mA.
Because test environment and model machine is individual different, test result is some difference a little, but can clearly find out, the current drain before and after revising changes, and this programme has been saved the electric current of general 35mA, and is significant concerning whole cell phone system.
Claims (3)
1. reduce the method for power consumption in the smart mobile phone conversation, be applicable to distance-sensor PS and have interrupt mode, central processor CPU has can outside wake the intelligent mobile phone platform that MODEM in interface and the conversation can not take the wake lock of system up, and it is characterized in that: it may further comprise the steps:
S1: mobile phone enters conversation;
S2: mobile phone is pressed close to ear and is covered the PS blank screen, takies wake lock without other modules again in the system;
S3: telephone system issues the SLEEP instruction to central processor CPU, and central processor CPU enters resting state;
S4: when mobile phone leaves ear, the distance that distance-sensor PS induction is left;
S5: when the distance of leaving reached certain threshold values, distance-sensor PS uploaded interrupt signal to central processor CPU, and interrupt signal transfers to can waking up on the interface pin outside of central processor CPU by the interruption pin of distance-sensor PS;
S6: wake central processor CPU up;
S7: central processor CPU control point bright screen curtain.
2. the method for power consumption during reduction smart mobile phone according to claim 1 is conversed, it is characterized in that: described central processor CPU can adopt the MTK6575 chip.
3. the method for power consumption during reduction smart mobile phone according to claim 1 is conversed, it is characterized in that: described distance-sensor PS can adopt the tmd2771 chip.
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| CN2012104639922A CN102946497A (en) | 2012-11-16 | 2012-11-16 | Method for reducing power consumption of smart phone during communication |
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Cited By (8)
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| CN103841269A (en) * | 2014-03-17 | 2014-06-04 | 联想(北京)有限公司 | Information processing method and device |
| CN104020837A (en) * | 2014-06-19 | 2014-09-03 | 珠海全志科技股份有限公司 | Audio playing power management method and power management device |
| WO2015003528A1 (en) * | 2013-07-09 | 2015-01-15 | 广东欧珀移动通信有限公司 | Method and system for preventing call-up misoperation |
| CN104661194A (en) * | 2013-11-19 | 2015-05-27 | 联想(北京)有限公司 | Prompting method and electronic equipment |
| CN105183123A (en) * | 2015-09-21 | 2015-12-23 | 北京元心科技有限公司 | Method and device for power supply management multisystem based on container |
| US9699729B2 (en) | 2014-09-29 | 2017-07-04 | Disa Technologies, Inc. | Methods and systems for regulating communications at a mobile communications device |
| CN107367252A (en) * | 2017-07-11 | 2017-11-21 | 努比亚技术有限公司 | A kind of relative position change determination methods, device and computer-readable recording medium |
| WO2019061102A1 (en) * | 2017-09-27 | 2019-04-04 | 深圳市云中飞网络科技有限公司 | Call processing method and related product |
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| CN110741621B (en) * | 2017-09-27 | 2021-08-10 | 深圳市欢太科技有限公司 | Call processing method and related product |
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Application publication date: 20130227 |