CN104113904A - SAR (specific absorption rate) control method and device and mobile terminal - Google Patents
SAR (specific absorption rate) control method and device and mobile terminal Download PDFInfo
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- CN104113904A CN104113904A CN201410351321.6A CN201410351321A CN104113904A CN 104113904 A CN104113904 A CN 104113904A CN 201410351321 A CN201410351321 A CN 201410351321A CN 104113904 A CN104113904 A CN 104113904A
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Abstract
The invention discloses an SAR control method and device and a mobile terminal and belongs to the technical field of mobile terminals. The method comprises detecting the distance between a human body and the mobile terminal; according to the detected distance between the human body and the mobile terminal, determining the attenuation value of transmitting power; performing attenuation treatment on the transmitting power of the mobile terminal according to the determined attenuation value. According to the SAR control method and device, by detecting the distance between the human body and the mobile terminal, correspondingly selecting the attenuation value of the transmitting power and performing the attenuation treatment on the transmitting power of the mobile terminal, the aim of controlling the SAR of the mobile terminal according to the distance between the human body and the mobile terminal can be achieved, so that the influence of the mobile terminal on the human body can be reduced.
Description
Technical field
The present invention relates to technical field of mobile terminals, relate in particular to a kind of SAR value control method, device and mobile terminal.
Background technology
Along with the fast development of intelligent mobile terminal and development of Mobile Internet technology, mobile terminal is extensively universal, becomes the indispensable communication of people and Internet access.Along with the function of mobile terminal from strength to strength, its transmitting power is increasing, also increasing to the radiation effect of human body, is more and more subject to the attention of every country and tissue.
People require more and more higher to the radio-frequency radiation of mobile terminal, from basic OTA (Over The Air) performance, develop into mobile phone radiation index S AR (Specific Absorption Rate, electro-magnetic wave absorption ratio or specific absorption rate).SAR refers to radiation by the ratio of the soft tissue absorbed of head, and SAR is lower, and the amount that radiation is absorbed by brain is fewer, generally, is exactly the size of mobile terminal radiating on human body impact.In mobile terminal authentication, SAR is a very important index, and the SAR constraint to product up to standard greatly reduces the radiation of actual product to human body.But in actual applications, mobile terminal major part is in mobile status, facing to the variation of network environment and the variation of mobile terminal and human body distance, SAR value is also in dynamic change, may occur in some cases situation about exceeding standard can producing harmful effect to human body.Therefore, be necessary that the SAR value of trying every possible means to mobile terminal controls, whenever it can not exceeded standard.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of SAR value control method, device and mobile terminal, to solve user, can not record easily and effectively offender commit a crime evidence and alarm inform the technical problem of mobile terminal current location.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme:
According to an aspect of the present invention, the SAR value control method of a kind of mobile terminal providing, comprising:
Distance between human body and mobile terminal;
According to the distance between the human body detecting and mobile terminal, determine the pad value of transmitting power;
According to definite pad value, the transmitting power of mobile terminal is carried out to attenuation processing.
Preferably, the distance between human body and mobile terminal further comprises:
Detect user's face and the distance between mobile terminal.
Preferably, according to the distance between the human body detecting and mobile terminal, determine that the pad value of transmitting power further comprises:
When the distance between human body and mobile terminal is less than default first threshold, the pad value of transmitting power is the first default pad value;
Distance between human body and mobile terminal is more than or equal to default first threshold, and while being less than default Second Threshold, the pad value of transmitting power is the second default pad value;
Distance between human body and mobile terminal is more than or equal to default Second Threshold, and while being less than or equal to the 3rd default threshold value, the pad value of transmitting power is the 3rd default pad value;
When the distance between human body and mobile terminal is greater than the 3rd default threshold value, the pad value of transmitting power is the 4th default pad value.
Preferably, the 4th pad value is 0.
Preferably, according to definite pad value, the transmitting power of mobile terminal being carried out to attenuation processing further comprises:
The transmitting power of mobile terminal is deducted to definite pad value.
The SAR value control device of a kind of mobile terminal providing according to another aspect of the present invention, comprises:
Apart from detection module, for detection of the distance between human body and mobile terminal;
Power attenuation value determination module, for according to the human body detecting and the distance between mobile terminal, determines the pad value of transmitting power;
Power attenuation processing module, for carrying out attenuation processing according to definite pad value to the transmitting power of mobile terminal.
Preferably, apart from detection module specifically for:
Detect user's face and the distance between mobile terminal.
Preferably, power attenuation value determination module specifically for:
When the distance between human body and mobile terminal is less than default first threshold, the pad value of determining transmitting power is the first default pad value;
Distance between human body and mobile terminal is more than or equal to default first threshold, and while being less than default Second Threshold, the pad value of determining transmitting power is the second default pad value;
Distance between human body and mobile terminal is more than or equal to default Second Threshold, and while being less than or equal to the 3rd default threshold value, the pad value of determining transmitting power is the 3rd default pad value;
When the distance between human body and mobile terminal is greater than the 3rd default threshold value, the pad value of determining transmitting power is the 4th default pad value.
Preferably, power attenuation processing module specifically for:
The transmitting power of mobile terminal is deducted to definite pad value.
According to a further aspect of the invention, a kind of mobile terminal providing, comprises the SAR value control device of technique scheme.
Compared with prior art, SAR value control method, device and the mobile terminal of the embodiment of the present invention, by the distance between human body and mobile terminal, the pad value of corresponding selection transmitting power, the transmitting power of mobile terminal is carried out to attenuation processing, reach the object of controlling the SAR value of mobile terminal according to the distance of human body and mobile terminal, thereby reduce the impact of mobile terminal on human body.
Accompanying drawing explanation
The flow chart of the SAR value control method of the mobile terminal that Fig. 1 provides for the embodiment of the present invention.
The SAR value control device modular structure figure of the mobile terminal that Fig. 2 provides for the embodiment of the present invention.
Embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer, clear, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Embodiment mono-
The SAR value control method of the mobile terminal that as shown in Figure 1, the embodiment of the present invention provides comprises the following steps:
Distance between S101, human body and mobile terminal.
Particularly, here said human body refers to the user who uses mobile terminal, because SAR refers to radiation by the ratio of the soft tissue absorbed of head, and mobile terminal in use, its screen is the face towards user, distance between user face and mobile terminal is less, and mobile terminal is larger to the radiation effect of human body, therefore general user's face and the distance between mobile terminal of detecting.Can detect in real time, also can interval regular time detect.
S102, according to the human body that detects and the distance between mobile terminal, determine the pad value of transmitting power.
Particularly, if the distance between human body and mobile terminal is L, power attenuation value is P, and mobile terminal has been preset the corresponding relation list of L and P, and mobile terminal has been preset the threshold value of following distance: first threshold L1, Second Threshold L2, the 3rd threshold value L3.
When the distance between human body and mobile terminal is less than default first threshold L1, the pad value of transmitting power is the first default pad value P1;
Distance between human body and mobile terminal is more than or equal to default first threshold L1, and while being less than default Second Threshold L2, the pad value of transmitting power is the second default pad value P2;
Distance between human body and mobile terminal is more than or equal to default Second Threshold L2, and while being less than or equal to the 3rd default threshold value L3, the pad value of transmitting power is the 3rd default pad value P3;
When the distance between human body and mobile terminal is greater than the 3rd default threshold value L3, the pad value of transmitting power is the 4th default pad value P4.
Particularly, also can preset n distance threshold (n>=1), form n+1 interval, respectively a corresponding n+1 pad value.N is larger, and the interval of acquisition is more, meticulousr to the adjustment of transmitting power according to the distance of human body and mobile terminal.
Distance between user face and mobile terminal is less, mobile terminal is larger to the radiation effect of human body, be that SAR value is larger, therefore, when the distance between user face and mobile terminal diminishes, suitably reduce the transmitting power of mobile terminal, can suitably reduce SAR value, make it be no more than the standard value of restriction.
S103, according to definite pad value, the transmitting power of mobile terminal is carried out to attenuation processing.
Particularly, the power attenuation value obtaining according to step S102, the power that power transmitter in mobile terminal is emitted carries out attenuation processing, is the power emitting from power transmitter is deducted to power attenuation value, then the transmitting power of acquisition is sent to the antenna of mobile terminal.
The SAR value control method of the embodiment of the present invention, by the distance between human body and mobile terminal, the pad value of corresponding selection transmitting power, the transmitting power of mobile terminal is carried out to attenuation processing, reach the object of controlling the SAR value of mobile terminal according to the distance of human body and mobile terminal, thereby reduce the impact of mobile terminal on human body.
Embodiment bis-
The SAR value control device of a kind of mobile terminal that as shown in Figure 2, the embodiment of the present invention provides comprises with lower module:
Apart from detection module 10, for detection of the distance between human body and mobile terminal.
Wherein, apart from detection module 10 specifically for detecting the distance between user face and mobile terminal.Apart from detection module 10, can be approach switch or range finder or the transducer that can detect distance between two points.
Power attenuation value determination module 20, for according to the human body detecting and the distance between mobile terminal, determines the pad value of transmitting power.
Wherein, power attenuation value determination module 20 specifically for:
When the distance between human body and mobile terminal is less than default first threshold L1, the pad value of transmitting power is the first default pad value P1;
Distance between human body and mobile terminal is more than or equal to default first threshold L1, and while being less than default Second Threshold L2, the pad value of transmitting power is the second default pad value P2;
Distance between human body and mobile terminal is more than or equal to default Second Threshold L2, and while being less than or equal to the 3rd default threshold value L3, the pad value of transmitting power is the 3rd default pad value P3;
When the distance between human body and mobile terminal is greater than the 3rd default threshold value L3, the pad value of transmitting power is the 4th default pad value P4.
L1<L2<L3, P4<P3<P2<P1, L1 can be preset as to 15cm, L2 is preset as 10cm, L3 is preset as 15cm, when P4 is preset as distance between 0, Ji Dang user face and mobile terminal and is greater than 15cm, do not need the transmitting power of mobile terminal to decay.When the distance between user face and mobile terminal is less than 5cm, the value that need to decay to the transmitting power of mobile terminal is maximum.
3 distance thresholds are not necessarily only set, n distance threshold can be set, form between n+1 distance regions, correspondence arranges n+1 power attenuation value.
Power attenuation value determination module 20 can adopt selector, according to the relation list of the L presetting and P, selects the P value corresponding with the L value detecting.
Power attenuation processing module 30, for carrying out attenuation processing according to definite pad value to the transmitting power of mobile terminal.
Power attenuation processing module 30 is connected with the power transmitter of mobile terminal, the power attenuation value obtaining according to power attenuation value determination module 20, the power that power transmitter in mobile terminal is emitted carries out attenuation processing, be that the power emitting from power transmitter is deducted to power attenuation value, then the transmitting power after attenuation processing gone out by the aerial radiation of mobile terminal.
Correspondingly, the present invention also provides a kind of mobile device, and this mobile terminal comprises the SAR control device of above-described embodiment two.
SAR value control method, device and the mobile terminal of above-described embodiment, by the distance between human body and mobile terminal, the pad value of corresponding selection transmitting power, the transmitting power of mobile terminal is carried out to attenuation processing, reach the object of controlling the SAR value of mobile terminal according to the distance of human body and mobile terminal, thereby reduce the impact of mobile terminal on human body.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method is can control relevant hardware by program to complete, described program can be in being stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
With reference to the accompanying drawings of the preferred embodiments of the present invention, not thereby limit to interest field of the present invention above.Those skilled in the art do not depart from the scope and spirit of the present invention, and can have multiple flexible program to realize the present invention, such as the feature as an embodiment can be used for another embodiment, obtain another embodiment.Allly using any modification of doing within technical conceive of the present invention, be equal to and replace and improve, all should be within interest field of the present invention.
Claims (10)
1. a SAR value control method, is characterized in that, described method comprises the steps:
Distance between human body and mobile terminal;
According to the distance between the human body detecting and mobile terminal, determine the pad value of transmitting power;
According to definite pad value, the transmitting power of mobile terminal is carried out to attenuation processing.
2. SAR value control method according to claim 1, is characterized in that, the distance between human body and mobile terminal further comprises:
Detect user's face and the distance between mobile terminal.
3. SAR value control method according to claim 1, is characterized in that, according to the distance between the human body detecting and mobile terminal, determines that the pad value of transmitting power further comprises:
When the distance between human body and mobile terminal is less than default first threshold, the pad value of transmitting power is the first default pad value;
Distance between human body and mobile terminal is more than or equal to default first threshold, and while being less than default Second Threshold, the pad value of transmitting power is the second default pad value;
Distance between human body and mobile terminal is more than or equal to default Second Threshold, and while being less than or equal to the 3rd default threshold value, the pad value of transmitting power is the 3rd default pad value;
When the distance between human body and mobile terminal is greater than the 3rd default threshold value, the pad value of transmitting power is the 4th default pad value.
4. SAR value control method according to claim 3, is characterized in that, described the 4th pad value is 0.
5. SAR value control method according to claim 1, is characterized in that, according to definite pad value, the transmitting power of mobile terminal is carried out to attenuation processing and further comprises:
The transmitting power of mobile terminal is deducted to described definite pad value.
6. a SAR value control device, is characterized in that, described device comprises:
Apart from detection module, for detection of the distance between human body and mobile terminal;
Power attenuation value determination module, for according to the human body detecting and the distance between mobile terminal, determines the pad value of transmitting power;
Power attenuation processing module, for carrying out attenuation processing according to definite pad value to the transmitting power of mobile terminal.
7. SAR value control device according to claim 6, is characterized in that, described apart from detection module specifically for:
Detect user's face and the distance between mobile terminal.
8. SAR value control device according to claim 6, is characterized in that, described power attenuation value determination module specifically for:
When the distance between human body and mobile terminal is less than default first threshold, the pad value of determining transmitting power is the first default pad value;
Distance between human body and mobile terminal is more than or equal to default first threshold, and while being less than default Second Threshold, the pad value of determining transmitting power is the second default pad value;
Distance between human body and mobile terminal is more than or equal to default Second Threshold, and while being less than or equal to the 3rd default threshold value, the pad value of determining transmitting power is the 3rd default pad value;
When the distance between human body and mobile terminal is greater than the 3rd default threshold value, the pad value of determining transmitting power is the 4th default pad value.
9. SAR value control device according to claim 6, is characterized in that, described power attenuation processing module specifically for:
The transmitting power of mobile terminal is deducted to described definite pad value.
10. a mobile terminal, is characterized in that, this mobile terminal comprises the arbitrary described SAR value control device of claim 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410351321.6A CN104113904A (en) | 2014-07-22 | 2014-07-22 | SAR (specific absorption rate) control method and device and mobile terminal |
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| CN201410351321.6A CN104113904A (en) | 2014-07-22 | 2014-07-22 | SAR (specific absorption rate) control method and device and mobile terminal |
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| CN105099578A (en) * | 2015-07-28 | 2015-11-25 | 中国联合网络通信集团有限公司 | Electromagnetic radiation assessment method and electromagnetic radiation assessment equipment |
| CN106376072A (en) * | 2016-09-06 | 2017-02-01 | 深圳市广和通无线股份有限公司 | 3g module transmitting power control system and control method thereof |
| CN106572527A (en) * | 2016-11-11 | 2017-04-19 | 上海乐今通信技术有限公司 | Mobile terminal and method of reducing SAR of mobile terminal |
| CN107800455A (en) * | 2016-09-01 | 2018-03-13 | 三星电子株式会社 | Electronic installation and its gripping recognition methods |
| WO2018120229A1 (en) * | 2016-12-30 | 2018-07-05 | 西安易朴通讯技术有限公司 | Method and terminal for controlling transmission power |
| CN109068383A (en) * | 2018-08-24 | 2018-12-21 | 维沃移动通信有限公司 | A kind of method and terminal device adjusting antenna transmission power |
| CN111190500A (en) * | 2019-11-12 | 2020-05-22 | 华为终端有限公司 | Method for reducing SAR of terminal equipment and terminal equipment |
| CN113556427A (en) * | 2021-08-02 | 2021-10-26 | Tcl通讯（宁波）有限公司 | Mobile terminal radiation recording method and device, mobile terminal and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105099578A (en) * | 2015-07-28 | 2015-11-25 | 中国联合网络通信集团有限公司 | Electromagnetic radiation assessment method and electromagnetic radiation assessment equipment |
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| CN106572527A (en) * | 2016-11-11 | 2017-04-19 | 上海乐今通信技术有限公司 | Mobile terminal and method of reducing SAR of mobile terminal |
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| US10820281B2 (en) | 2016-12-30 | 2020-10-27 | Xi'an Yep Telecommunication Technology., Ltd | Method and terminal for controlling transmission power |
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| CN111190500A (en) * | 2019-11-12 | 2020-05-22 | 华为终端有限公司 | Method for reducing SAR of terminal equipment and terminal equipment |
| CN113556427A (en) * | 2021-08-02 | 2021-10-26 | Tcl通讯（宁波）有限公司 | Mobile terminal radiation recording method and device, mobile terminal and storage medium |
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Address after: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant after: Nubian Technologies Ltd. Address before: A District No. 9018 Han innovation building in Nanshan District high tech Zone in Shenzhen city of Guangdong Province, North Central Avenue, 518000 floor 10 Applicant before: Shenzhen ZTE Mobile Tech Co., Ltd. |
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