CN106900051A - A kind of method and device for reducing specific absorption rate of electromagnetic radiation - Google Patents
A kind of method and device for reducing specific absorption rate of electromagnetic radiation Download PDFInfo
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- CN106900051A CN106900051A CN201710104176.5A CN201710104176A CN106900051A CN 106900051 A CN106900051 A CN 106900051A CN 201710104176 A CN201710104176 A CN 201710104176A CN 106900051 A CN106900051 A CN 106900051A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/18—TPC being performed according to specific parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
- H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
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Abstract
The present invention discloses a kind of method and device for reducing specific absorption rate of electromagnetic radiation, it is characterised in that the method includes：The processor of mobile terminal obtains the testing result of the temperature sensor of mobile terminal, wherein, continuous K detected value difference between any two is more than the first given threshold in the testing result of the temperature sensor of the mobile terminal, and K is the positive integer more than 1；The processor is calculated specific absorption rate of electromagnetic radiation SAR and device levels index value DSI according to the testing result of the temperature sensor；When the processor judges the SAR more than the corresponding default transmission power levels of the DSI, the processor indicates the modem of the mobile terminal to adjust to the default transmission power transmission power, it is used to provide a kind of method of new reduction specific absorption rate of electromagnetic radiation so that reduce electromagnetism injury of the mobile terminal to human body.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of method and device for reducing specific absorption rate of electromagnetic radiation.
Background technology
As mobile terminal is increasingly widely applied, the public more and more considers spoke of the mobile terminal to the person
Penetrate, particularly virtual reality device is generally worn on the head of user, the radiation problem of the especially of interest virtual reality device of user.
The index for wherein weighing the electromagnetic wave energy size for being radiated human body is SAR (Specific Absorption Rate, electromagnetism spoke
Penetrate specific absorption rate), i.e. wireless terminal specific absorption rate value.SAR is typically used as indicating the electromagnetic wave of mobile terminal radiating
Harmful effect value.
The technology of current most reduction SAR, more using change antenna cabling, increases CAP SENSOR (lid sensings
Device), differentiation ground connection etc. measure.But these measures implement relatively difficult, more particularly to antenna design, difficulty is larger, and
Effect is undesirable.
The content of the invention
The embodiment of the present invention provides a kind of method and device for reducing specific absorption rate of electromagnetic radiation, is used to provide a kind of new
The method for reducing specific absorption rate of electromagnetic radiation so that reduce electromagnetism injury of the mobile terminal to human body.
The inventive method includes a kind of method for reducing specific absorption rate of electromagnetic radiation, and the method includes：
The processor of mobile terminal obtains the testing result of the temperature sensor of mobile terminal, wherein, the mobile terminal
Temperature sensor testing result in continuous K detected value difference between any two more than the first given threshold, K be more than
1 positive integer；
The processor according to the testing result of the temperature sensor, be calculated specific absorption rate of electromagnetic radiation SAR and
Device levels index value DSI；
When the processor judges the SAR more than the corresponding default transmission power levels of the DSI, the processor refers to
Show that the modem of the mobile terminal adjusts to the default transmission power transmission power.
Based on same inventive concept, the embodiment of the present invention further provides a kind of reduction specific absorption rate of electromagnetic radiation
Device, the device includes：
Acquiring unit, the testing result of the temperature sensor for obtaining mobile terminal, wherein, the temperature of the mobile terminal
Spend continuous K detected value in the testing result of sensor and be all higher than the first given threshold；
Computing unit, for the testing result according to the temperature sensor, is calculated specific absorption rate of electromagnetic radiation SAR
With device levels index value DSI；
Processing unit, during for judging the SAR more than the corresponding default transmission power levels of the DSI, indicates the shifting
The modem of dynamic terminal adjusts to the default transmission power transmission power.
Embodiment of the present invention temperature in use sensor carries out the measurement of SAR, and adjusts transmission power level using measurement result,
Wherein, temperature sensor is mainly and is worked in the case where mobile terminal touches user, can thus avoid working as user
When wearing the mobile terminals such as similar virtual implementing helmet, range sensor can not measure field intensity, and then cannot calculate asking for SAR
Topic, also, the embodiment of the present invention can accordingly adjust transmission power level after accurately SAR is measured, and meet its electromagnetic radiation
Index, reduces the electromagnetism injury to human body.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of model for being applied to SAR measuring systems provided in an embodiment of the present invention；
Fig. 2 is a kind of method flow schematic diagram for reducing specific absorption rate of electromagnetic radiation provided in an embodiment of the present invention；
Fig. 3 is a kind of reduction specific absorption rate of electromagnetic radiation principle framework schematic diagram provided in an embodiment of the present invention；
Fig. 4 is a kind of apparatus structure schematic diagram for reducing specific absorption rate of electromagnetic radiation provided in an embodiment of the present invention.
Specific embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with accompanying drawing the present invention is made into
One step ground is described in detail, it is clear that described embodiment is only some embodiments of the invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
Because the various organs of human body are lossy dielectric, inductive electromagnetic will be produced in vivo in the presence of external electromagnetic field
, internal induction field will produce electric current, cause to absorb and dissipative electromagnetic energy.SAR is commonly used in biological dosimetry and carrys out table
Levy this physical process.The electromagnetic power that the meaning of SAR is absorbed or consumed by the tissue of unit quality, unit is W/
kg.The interior quality infinitesimal (dm) of differential element of volume (dV) of given density (ρ) absorbs the energy infinitesimal (dW) of (dissipation) to the time
Differential value is exactly SAR.I.e.
The electromagnetic radiation of the mobile terminals such as mobile phone is always the problem that the public pays close attention to.Wherein, Europe and North America
Compulsive requirement development coherent detection is just formulated respectively the nineties in area early in eighties of last century.International standard limit has two kinds,
Europe limit standard be：The SAR average values of 10g biological tissues are 2.0W/kg；The limit standard of North America is：1g biological tissues
SAR average values be 1.6W/kg.
The Ministry of Information Industry of our countries determines that formal development electromagnetic radiation of mobile telephone networked from 2005 and detects.Detection will
Ask：Detection provides 1g averagely and 10g average electromagnetic radiation (SAR) value simultaneously；Exposure limits are：Any 10 grams of biological tissues,
Arbitrary continuation 6min average specific absorption rate (SAR) value must not exceed 2.0W/kg.Wherein, in all inspection projects, maximum is given
The average SAR value of head room (10g volumes are average) is less than 2.0W/kg as the overall result for detecting, the value, and it is qualified to be judged to；Otherwise
It is judged to unqualified.
The Ministry of Information Industry of our countries simultaneously requires to be represented with boldface type in product description：" this product electromagnetism spoke
Specific absorption rate (SAR) maximum is penetrated for X.X W/kg, meets the requirement of standard GB/T 21288-2007 ", and encourage in product
Specific absorption rate of electromagnetic radiation (SAR) maximum is indicated in external packing.Pacemaker, hearing aid should be indicated on product description
The item that the users such as device, implantation ear whirlpool should be noted when using this product
Wherein, SAR measuring systems are main is pressed from both sides by manikin, electronic measuring instrument, Scan orientation system and equipment under test
The composition such as tool.Measurement should be carried out by the Electric Field Distribution inside the mini small-sized field intensity probe measurement model that is automatically positioned.Root
Distribution and the average SAR of head room of SAR can be calculated according to the field intensity value for measuring.As shown in figure 1, the mould shapes of standard
It is to be formulated according to the research report of 90% man's head in anthroposomatology research, the ear of model simulation people uses hand-held
The flat form of ear during equipment.Point M is mouth reference point, and LE is left ear reference point (ERP), and RE is auris dextra reference point (ERP).
These must be labeled on the outer surface of model the resetting for being easy to that wireless device is carried out according to model.The experiment for measuring
Room should meet following environmental condition：
Between 18 DEG C to 25 DEG C, fluid temperature change is no more than ± 2 DEG C in measurement process for-environment temperature；
- environment electromagnetic noise is no more than 0.012W/kg (the 3% of lower detection limit 0.4W/kg)；
- tested Wireless Telecom Equipment not can connect to local public communication network；
The influence of-reflection, auxiliary radio frequency sending set etc. should be less than and measure the 3% of SAR value.
Based on the system of above-mentioned measurement SAR, the embodiment of the present invention provides a kind of method for reducing specific absorption rate of electromagnetic radiation
Schematic flow sheet, shown in Figure 2, specifically implementation method includes：
Step S101, the processor of mobile terminal obtains the testing result of the temperature sensor of mobile terminal, wherein, it is described
Continuous K detected value difference between any two is more than the first setting threshold in the testing result of the temperature sensor of mobile terminal
Value, K is the positive integer more than 1.
Step S102, the processor is calculated electromagnetic radiation than inhaling according to the testing result of the temperature sensor
Yield SAR and device levels index value DSI.
Step S103, when the processor judges the SAR more than the corresponding default transmission power levels of the DSI, institute
Stating processor indicates the modem of the mobile terminal to adjust to the default transmission power transmission power.
Method provided in an embodiment of the present invention primarily directed to similar virtual reality device mobile terminal, such as, use
When the helmet of virtual reality is worn at family, range sensor and user keep relative position constant, so the distance for measuring is just not
Change again, thus lead to not measure the field strength distribution of user, so as to electromagnetic radiation cannot be calculated.So, the present invention
Embodiment is divided to two kinds of scenes to be detected, when mobile terminal does not contact user, just carries out SAR detections with range sensor；When
When mobile terminal is with human contact, just SAR detections are carried out with temperature sensor.
Which kind of, in addition, no matter being detected using sensor, before being detected, can previously generate on DSI and hair
Mapping table between power is penetrated, different DSI grades correspond to different transmission power levels, such as following table respectively.
Table one:
| DSI | Transmission power level |
| 1 | 22 |
| 2 | 20 |
| 3 | 18 |
| 4 | 16 |
| … | … |
Mapping relations in other table one can subsequently update, and the power contorl parameters pre-deposited in modem are
Pre-deposited according to different scenes, can be by this database of interface function real-time update.
Above-mentioned mapping table can be pre-stored in modem, it is also possible to preserved within a processor, if protected
In there is modem, then when processor is judged, it is possible to called between DSI and transmission power from modem
Mapping table, the SAR default transmission power levels corresponding with the DSI are compared.If being stored in place
In reason device, then processor is searched corresponding with the DSI default from the DSI and the mapping table of transmission power that prestore
Transmission power level, the SAR default transmission power levels corresponding with the DSI are compared, by comparative result and
The default transmission power level is sent to modem.
Further, obtain temperature sensor testing result before, processor can judge by the following method away from
Whether the detected value from sensor is stablized in setting time section, however, it is determined that is stable state, can assert that its detected value is invalid.Tool
Body ground, the processor of mobile terminal determines the difference between any two of continuous N number of detected value of the range sensor less than the
During two given thresholds, the instruction that is stopped is sent to the range sensor, and obtain the TEMP in setting time section
The testing result of device, judges whether the temperature value in this period is both greater than certain setting value, if being more than, illustrates user and temperature
Sensor is in contact, the effective temperature detection value that temperature sensor is obtained, and user keeps relative position with range sensor
It is constant, thus range sensor obtain it is invalid apart from detected value.
That is, in original state, temperature sensor and range sensor all in working condition, then processor
Obtain the testing result of the two sensors, and detected value to obtaining is analyzed, when processor was found within certain time
When almost not changed before and after the value that range sensor is surveyed, then it can be assumed that the value that range sensor is surveyed is constant, because
This can close range sensor, and at this moment just only temperature sensor is in running order, so as to be surveyed using temperature sensor
The temperature value for obtaining calculates SAR.As shown in figure 3, range sensor and temperature sensor are detected that temperature sensor is mainly borrowed
Help the change of measured object temperature to detect electromagnetic radiation intensity, range sensor mainly should detect equipment under test by distance perspective
Field strength distribution.Processor obtains the testing result of the two sensors, and the inspection of effective sensor is drawn according to comparative result
Measured value, is then changed temperature value or distance value, is converted into DSI, and processor is sentenced by MI (Modem Message)
Determine the status information DSI of mobile terminal, and then transmit this message MI to be given to modem.Modem is further according to processor
Comparative result, transmission power is adjusted.From this process, when the detected value of some sensor is invalid, close
Closing range sensor or temperature sensor can reduce the power consumption of mobile terminal.
Further, the method that the temperature value for being measured using temperature sensor calculates SAR is that the processor is according to institute
The testing result of temperature sensor is stated, SAR is calculated according to formula one, the formula one is：
Wherein, c is the specific heat capacity of tissue, and T is the testing result of temperature sensor, and t is detection time section.
In addition, when according to it is above-mentioned be calculated SAR after, if processor also judge the SAR less than the DSI it is corresponding pre-
If transmission power level, then do not send adjustment transmission power to the modem and instruct.
In view of when mobile terminal is not contacted with user, temperature sensor is the temperature that cannot detect user, institute
The detection method under this scene is further provided with the embodiment of the present invention, specifically, when the processor of the mobile terminal is true
The difference between any two of continuous N number of detected value of the fixed temperature sensor in the second setting time section is not more than described the
During one given threshold, the instruction that is stopped is sent to the temperature sensor, and obtain in second setting time section
The testing result of range sensor, wherein, continuous N number of detected value in the testing result of the range sensor of the mobile terminal
Difference between any two is not less than second given threshold；The processor according to the testing result of the range sensor,
It is calculated the SAR and DSI；
When the processor judges the SAR more than the corresponding default transmission power levels of the DSI, the processor refers to
Show that the modem of the mobile terminal adjusts to the default transmission power transmission power.
Detection method with said temperature sensor is similar, and the scene mainly uses the testing result of range sensor
SAR is calculated, computational methods are mainly testing result of the processor according to the range sensor, calculate making for the mobile terminal
With the electric-field intensity of user；The processor is calculated SAR, the formula two according to the electric-field intensity according to formula two
For：
Wherein, σ is conductance, and ρ is density, and E is electric-field intensity.
In this scenario, the method for the adjustment transmission power of subsequent brew demodulator is consistent with the above method, herein not
Repeat again.
In summary, the method for the reduction specific absorption rate of electromagnetic radiation that this hair embodiment is used is different from conventional method, this
Inventive embodiments use two kinds of sensors, and electric-field intensity inspection is carried out using range sensor when mobile terminal does not contact human body
Survey, once after mobile terminal and human contact, electromagnetism is assessed by temperature change of a certain position of human body in special time
Radiation intensity.
Based on identical technology design, the embodiment of the present invention also provides a kind of device for reducing specific absorption rate of electromagnetic radiation,
The executable above method embodiment of the device.Device provided in an embodiment of the present invention as shown in figure 4, including：Acquiring unit 301,
Computing unit 302, processing unit 303, wherein：
Acquiring unit 301, for obtaining testing result of the temperature sensor of mobile terminal in the first setting time section,
Wherein, continuous K detected value difference between any two is more than the in the testing result of the temperature sensor of the mobile terminal
One given threshold, K is the positive integer more than 1；
Computing unit 302, for the testing result according to the temperature sensor, is calculated specific absorption rate of electromagnetic radiation
SAR and device levels index value DSI；
Processing unit 303, during for judging the SAR more than the corresponding default transmission power levels of the DSI, indicates described
The modem of mobile terminal adjusts to the default transmission power transmission power.
Further, the computing unit 302 specifically for：According to the testing result of the temperature sensor, according to public affairs
Formula one is calculated SAR, and the formula one is as described above, repeat no more.
Further, described device also includes：Determining unit 304, the continuous N number of detected value for determining range sensor
Difference between any two；
If the determining unit 304 determines that the difference is less than the second given threshold, the transmitting element 305 is also used
It is stopped instruction in being sent to the range sensor；
Further, it is determined that unit 304 is additionally operable to：Determine that the temperature sensor is continuous in the second setting time section
K detected value whether be more than first given threshold.When it is no that the determining unit 304 determines result, the transmission
Unit 305 sends the instruction that is stopped to the temperature sensor；
The acquiring unit 301, is additionally operable to obtain the detection knot of the range sensor in second setting time section
Really, wherein, continuous N number of detected value difference between any two is not small in the testing result of the range sensor of the mobile terminal
In second given threshold；
Further, the computing unit 302 is additionally operable to：According to the testing result of the range sensor, it is calculated
The SAR and DSI；
The processing unit 303, is additionally operable to：When judge the SAR be more than the corresponding default transmission power levels of the DSI
When, indicate the modem of the mobile terminal to adjust to the default transmission power transmission power.
Further, the computing unit 302 specifically for：According to the testing result of the range sensor, institute is calculated
State the electric-field intensity of the use user of mobile terminal；According to the electric-field intensity, SAR, the public affairs are calculated according to formula two
Formula two is repeated no more as described above.
To sum up shown, the embodiment of the present invention is used in combination temperature sensor and range sensor carries out the measurement of SAR, and profit
Transmission power level is adjusted with measurement result, wherein, temperature sensor is mainly and is risen in the case where mobile terminal touches user
Effect, and range sensor is worked in the case where mobile terminal changes with the distance of user, thus can be with
Avoid when user wears the mobile terminals such as similar virtual implementing helmet, range sensor can not measure field intensity, and then cannot count
The problem of SAR is calculated, also, the embodiment of the present invention can accordingly adjust transmission power level after accurately SAR is measured, and make its electromagnetism
Radiation meets index, reduces the electromagnetism injury to human body.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram are described.It should be understood that every first-class during flow chart and/or block diagram can be realized by computer program instructions
The combination of flow and/or square frame in journey and/or square frame and flow chart and/or block diagram.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of being specified in present one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy
In determining the computer-readable memory that mode works so that instruction of the storage in the computer-readable memory is produced and include finger
Make the manufacture of device, the command device realize in one flow of flow chart or multiple one square frame of flow and/or block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented treatment, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (10)
1. it is a kind of reduce specific absorption rate of electromagnetic radiation method, it is characterised in that the method includes：
The processor of mobile terminal obtains the testing result of temperature sensor of the mobile terminal in the first setting time section, its
In, continuous K detected value difference between any two is more than first in the testing result of the temperature sensor of the mobile terminal
Given threshold, K is the positive integer more than 1；
The processor is calculated specific absorption rate of electromagnetic radiation SAR and equipment according to the testing result of the temperature sensor
Hierarchy index value DSI；
When the processor judges the SAR more than the corresponding default transmission power levels of the DSI, the processor indicates institute
The modem for stating mobile terminal adjusts to the default transmission power transmission power.
2. the method for claim 1, it is characterised in that detection knot of the processor according to the temperature sensor
Really, specific absorption rate of electromagnetic radiation SAR is calculated, including：
The processor is calculated SAR, the formula one according to the testing result of the temperature sensor according to formula one
For：
Wherein, c is the specific heat capacity of tissue, and T is the testing result of temperature sensor, and t is detection time section.
3. the method for claim 1, it is characterised in that the processor of the mobile terminal obtains the mobile terminal and exists
Before the testing result of the temperature sensor in the first setting time section, also include：
The processor of the mobile terminal determines the difference between any two of continuous N number of detected value of range sensor, N be more than
1 positive integer；
If the difference is less than the second given threshold, the processor of the mobile terminal sends to the range sensor and stops
Work order.
4. the method for claim 1, it is characterised in that the processor indicates the modem of the mobile terminal
Transmission power is adjusted to the default transmission power, is also included：
The processor of the mobile terminal determines continuous K detected value of the temperature sensor in the second setting time section
No more than first given threshold when, sent to the temperature sensor and be stopped instruction；
The processor of the mobile terminal obtains the testing result of the range sensor in second setting time section, its
In, continuous N number of detected value difference between any two is not less than institute in the testing result of the range sensor of the mobile terminal
State the second given threshold；
The processor is calculated the SAR and DSI according to the testing result of the range sensor；
When the processor judges the SAR more than the corresponding default transmission power levels of the DSI, the processor indicates institute
The modem for stating mobile terminal adjusts to the default transmission power transmission power.
5. device as claimed in claim 4, it is characterised in that detection knot of the processor according to the range sensor
Really, the SAR is calculated, including：
The processor calculates the electric-field strength of the use user of the mobile terminal according to the testing result of the range sensor
Degree；
The processor is calculated SAR according to the electric-field intensity according to formula two, and the formula two is：
Wherein, σ is conductance, and ρ is density, and E is electric-field intensity.
6. it is a kind of reduce specific absorption rate of electromagnetic radiation device, it is characterised in that the device includes：
Acquiring unit, for obtaining testing result of the temperature sensor of mobile terminal in the first setting time section, wherein, institute
Continuous K detected value difference between any two is more than the first setting threshold in the testing result of the temperature sensor for stating mobile terminal
Value, K is the positive integer more than 1, and K is the positive integer more than 1；
Computing unit, for the testing result according to the temperature sensor, is calculated specific absorption rate of electromagnetic radiation SAR and sets
Standby hierarchy index value DSI；
Processing unit, during for judging the SAR more than the corresponding default transmission power levels of the DSI, indicate it is described it is mobile eventually
The modem at end adjusts to the default transmission power transmission power.
7. device as claimed in claim 6, it is characterised in that the computing unit specifically for：
According to the testing result of the temperature sensor, SAR is calculated according to formula one, the formula one is：
Wherein, c is the specific heat capacity of tissue, and T is the testing result of temperature sensor, and t is detection time section.
8. device as claimed in claim 6, it is characterised in that also include：
Determining unit, the difference between any two of the continuous N number of detected value for determining range sensor, N is just whole more than 1
Number；
If the determining unit determines that the difference is less than the second given threshold, transmitting element is additionally operable to be passed to the distance
Sensor sends the instruction that is stopped.
9. device as claimed in claim 8, it is characterised in that the determining unit is additionally operable to：Determine the temperature sensor
Whether the continuous K detected value in the second setting time section is more than first given threshold；
When it is no that the determining unit determines result, the transmitting element sends the finger that is stopped to the temperature sensor
Order；
The acquiring unit, is additionally operable to obtain the testing result of the range sensor in second setting time section, wherein,
Continuous N number of detected value difference between any two is not less than described the in the testing result of the range sensor of the mobile terminal
Two given thresholds；
The computing unit, is additionally operable to the testing result according to the range sensor, is calculated the SAR and DSI；
The processing unit, is additionally operable to, when the SAR is judged more than the corresponding default transmission power levels of the DSI, indicate institute
The modem for stating mobile terminal adjusts to the default transmission power transmission power.
10. device as claimed in claim 9, it is characterised in that the computing unit specifically for：According to the Distance-sensing
The testing result of device, calculates the electric-field intensity of the use user of the mobile terminal；
According to the electric-field intensity, SAR is calculated according to formula two, the formula two is：
Wherein, σ is conductance, and ρ is density, and E is electric-field intensity.
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Cited By (7)
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| CN107612573A (en) * | 2017-09-25 | 2018-01-19 | 深圳市盛路物联通讯技术有限公司 | The SAR value method of adjustment and wearable device of a kind of wearable device |
| CN109001505A (en) * | 2018-04-10 | 2018-12-14 | 西安易朴通讯技术有限公司 | The SAR sensor of a kind of pair of terminal carries out the method and terminal of temperature-compensating |
| CN111034162A (en) * | 2018-04-20 | 2020-04-17 | 华为技术有限公司 | A method and device for reducing specific absorption rate of electromagnetic radiation |
| CN111948460A (en) * | 2020-08-13 | 2020-11-17 | 歌尔光学科技有限公司 | Head mounted display device, electromagnetic radiation warning method, device and readable storage medium |
| CN113993199A (en) * | 2020-07-27 | 2022-01-28 | 北京小米移动软件有限公司 | Antenna radiation power adjusting method and device and electronic equipment |
| CN116001627A (en) * | 2022-12-30 | 2023-04-25 | 国网北京市电力公司 | Electromagnetic leakage monitoring method and device, storage medium and processor |
| US20230345381A1 (en) * | 2020-09-11 | 2023-10-26 | Qualcomm Incorporated | Exception-robust time-averaged radio frequency exposure compliance continuity |
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| CN109001505B (en) * | 2018-04-10 | 2019-12-24 | 西安易朴通讯技术有限公司 | Method for carrying out temperature compensation on SAR sensor of terminal and terminal |
| US11366137B2 (en) | 2018-04-10 | 2022-06-21 | Xi'an Yep Telecommunication Technology, Ltd. | Temperature compensation method for SAR sensor of terminal, and terminal |
| US11115073B2 (en) | 2018-04-20 | 2021-09-07 | Huawei Technologies Co., Ltd. | Method and device for decreasing electromagnetic radiation specific absorption rate |
| CN111034162A (en) * | 2018-04-20 | 2020-04-17 | 华为技术有限公司 | A method and device for reducing specific absorption rate of electromagnetic radiation |
| CN113993199A (en) * | 2020-07-27 | 2022-01-28 | 北京小米移动软件有限公司 | Antenna radiation power adjusting method and device and electronic equipment |
| CN113993199B (en) * | 2020-07-27 | 2024-05-14 | 北京小米移动软件有限公司 | Antenna radiation power adjusting method and device and electronic equipment |
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| CN116001627A (en) * | 2022-12-30 | 2023-04-25 | 国网北京市电力公司 | Electromagnetic leakage monitoring method and device, storage medium and processor |
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