WO2012048610A1 - Procédé de traitement d'un taux d'absorption spécifique d'une énergie d'onde électromagnétique et terminal mobile - Google Patents

Procédé de traitement d'un taux d'absorption spécifique d'une énergie d'onde électromagnétique et terminal mobile Download PDF

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Publication number
WO2012048610A1
WO2012048610A1 PCT/CN2011/079591 CN2011079591W WO2012048610A1 WO 2012048610 A1 WO2012048610 A1 WO 2012048610A1 CN 2011079591 W CN2011079591 W CN 2011079591W WO 2012048610 A1 WO2012048610 A1 WO 2012048610A1
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WIPO (PCT)
Prior art keywords
mobile terminal
sar
value
distance
user
Prior art date
Application number
PCT/CN2011/079591
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English (en)
Chinese (zh)
Inventor
张义磊
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012048610A1 publication Critical patent/WO2012048610A1/fr

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular to a method for processing an electromagnetic wave energy absorption ratio (SAR) and a mobile terminal.
  • SAR electromagnetic wave energy absorption ratio
  • Mobile terminals e.g., mobile phones
  • SAR testing is also an important indicator in mobile terminal authentication.
  • the SAR compliance standard greatly reduces the radiation of actual products to the human body.
  • most of the mobile terminals are in a mobile state. As the network environment changes and the mobile terminal changes from the human body part (for example, the head), the SAR value also changes dynamically, in some cases.
  • a method for processing an electromagnetic wave energy absorption ratio comprising: a mobile terminal acquiring a distance from a human body part of a user using the mobile terminal to the mobile terminal and a transmission power of the mobile terminal; The mobile terminal acquires a value of the electromagnetic wave energy absorption ratio SAR according to the distance and the transmission power; the mobile terminal issues a command to reduce the transmission power and/or to the user if the value of the SAR exceeds a threshold prompt.
  • the mobile terminal issues a command to reduce the transmit power if the value of the SAR exceeds the threshold; the mobile terminal performs a command to send a reduced transmit power for more than a predetermined number of times, and each time a reduced transmission is sent If the SAR value acquired again after the power command exceeds the threshold value, the user is prompted.
  • the mobile terminal determines a coefficient according to a frequency band used by the mobile terminal, and uses the coefficient, the distance, and a value of the SAR.
  • the mobile terminal according to the distance and the value of the SAR comprises: a distance between the SAR maximum point in the human body part and a radiation strongest point on the mobile terminal according to the mobile terminal The transmit power obtains the value of the SAR.
  • the transmission power, K is a coefficient determined according to the frequency band used by the mobile terminal.
  • the mobile terminal prompts the user to include at least one of the following: prompting the user to replace the use of the mobile terminal environment, prompting the user to replace the use of the mobile terminal.
  • a mobile terminal including: a parameter acquisition module, configured to acquire a distance from a human body part of a user using the mobile terminal to the mobile terminal and a transmit power of the mobile terminal; Obtaining a module, configured to acquire a value of the SAR according to the distance and the transmit power; and the processing module is configured to issue a command to reduce the transmit power and/or prompt the user if the value of the SAR exceeds a threshold .
  • the processing module is configured to, when the command to send the reduced transmit power is performed more than a predetermined number of times, and the SAR value acquired again after each command to reduce the transmit power exceeds the threshold, to the user prompt.
  • the SAR acquisition module is configured to acquire a value of the SAR according to a distance between a SAR maximum point in the human body part and a radiation strongest point on the mobile terminal and the transmission power.
  • the mobile terminal acquires the distance from the human body part of the user using the mobile terminal to the mobile terminal and the transmission power of the mobile terminal; the mobile terminal acquires the value of the absorption rate SAR according to the distance and the transmission power; the value of the mobile terminal in the SAR exceeds In the case of a threshold, a command to reduce the transmit power is issued and/or a prompt is presented to the user.
  • the problem that the SAR may exceed the standard in the prior art and affect the human body is solved, thereby protecting the user of the mobile terminal to a certain extent.
  • FIG. 1 is a flowchart of a SAR processing method according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a calculation method of Xb according to an embodiment of the present invention
  • Step S102 A mobile terminal acquires a distance and a movement of a human body part of a user using the mobile terminal to a mobile terminal. The transmitting power of the terminal is obtained.
  • Step S104 The mobile terminal acquires the value of the absorption rate SAR according to the distance and the transmitting power.
  • Step S106 The mobile terminal issues a command to reduce the transmitting power and/or prompts the user if the value of the SAR exceeds the threshold. Since in the prior art, neither the mobile terminal design nor the manufacturer notices that the mobile terminal may exceed the SAR value in some cases, the mobile terminal in the prior art does not have the function of detecting the SAR value. Through the above steps, the function of detecting the SAR is added to the mobile terminal, and the corresponding processing can also be performed when the SAR exceeds the threshold value, thereby functioning as a human body protection.
  • the mobile terminal can calculate the SAR value according to the distance and the transmit power, and in addition, the frequency band used by the mobile terminal can also be considered in the calculation.
  • the mobile terminal can according to the distance between the SAR maximum point in the body part and the strongest point on the mobile terminal.
  • the SAR value is obtained by leaving. It should be noted that, for a mobile terminal with a relatively small volume, the strongest point of radiation to the mobile terminal can be regarded as the distance to the mobile terminal.
  • the confirmation of the maximum point of the SAR and the strongest point of the radiation on the mobile terminal can be measured in the laboratory, and the process of obtaining the value is not related to the embodiment, and details are not described herein again.
  • FIG. 2 is a schematic diagram of a calculation method of Xb according to an embodiment of the present invention.
  • the radiation of the mobile terminal can be measured in the laboratory.
  • the strongest point D is the distance b from the maximum point C of the SAR in the human body part.
  • Xb a+Xb in the above formula is actually Xa.
  • the computing function may not be added to the mobile terminal, and the SAR value at a certain distance and the transmit power may be directly determined according to the relationship between the distance, the transmit power and the SAR value obtained in advance, and the implementation manner is relatively
  • the implementation of the above calculation method is simple, but more work needs to be done in the laboratory, so that the correspondence between the distance, the transmission power and the SAR value is as detailed as possible, which is more accurate in actual use.
  • the terminal may need to ensure the quality of the call, and thus the reduction of the transmission power is little or not reduced.
  • FIG. 3 is a structural block diagram of a mobile terminal according to an embodiment of the present invention. As shown in FIG. 3, the structure includes: a parameter obtaining module 32, a SAR obtaining module 34, and a processing module 36, which will be described below.
  • the parameter obtaining module 32 is configured to acquire (or is set to) a distance of the human body part of the user using the mobile terminal to the mobile terminal and a transmission power of the mobile terminal;
  • the SAR obtaining module 34 is connected to the parameter obtaining module 32, and configured to The distance and transmit power obtains the value of the absorbance SAR;
  • the processing module 36 is coupled to the SAR acquisition module 34 for issuing a command to reduce the transmit power and/or to prompt the user if the value of the SAR exceeds a threshold.
  • the processing module 36 is configured to prompt the user if the command to issue the reduced transmit power exceeds the predetermined number of times and the SAR value acquired again after each command to reduce the transmit power exceeds the threshold.
  • the SAR acquisition module 34 is configured to acquire the value of the SAR according to the distance between the SAR maximum point in the body part and the radiation strongest point on the mobile terminal and the transmission power.
  • the SAR acquisition module 34 is configured to obtain the value of the SAR according to the following formula:
  • the distance from the SAR maximum point to the edge of the human body part, P is the transmission power of the mobile terminal, and K is the coefficient determined according to the frequency band used by the mobile terminal.
  • a warning is issued to prompt the user to change the usage environment (such as changing a location) and the usage mode (such as using Lifting features or headphones, etc., to protect users to the greatest extent possible.
  • a method of providing real-time detection of SAR values in a mobile terminal to provide protection to the human body is provided.
  • Step S202 The SAR value of the mobile terminal to the human body part (such as the head, the leg, etc.) is measured in an authoritative laboratory, and the point C of the SAR maximum value and the maximum value is obtained, and the hot spot on the terminal D (the strongest point of radiation), the distance of the hotspot from the SAR probe, etc., as the initial value enabled in this embodiment;
  • Step S204 the distance detecting component is enabled at the hot spot position of the terminal, so as to collect the distance of the mobile terminal to the human body in real time, Providing the monitoring software for real-time processing;
  • Step S206 using the SAR maximum value, the distance Xa of the mobile terminal to the human body part plus the distance from the human body surface to the maximum point of the SAR measured by the laboratory, that is, the distance Xb of the hotspot from the SAR detecting head, in communication
  • the information such as the power transmitted by the mobile terminal in the process is processed by the SAR value monitoring software to obtain the actual maximum SAR value at this time, and the
  • the mobile terminal in this embodiment has the function of real-time monitoring and distance from the human body, and the mobile terminal is a mobile terminal that collects hotspots in the authentication laboratory and has an original data array.
  • the mobile terminal by compiling the software, software that can monitor the SAR value in real time can be added in the mobile terminal interface. By debugging the software, the mobile terminal monitors the high-precision SAR value.
  • a method for realizing SAR protection by adding real-time monitoring SAR value to the mobile terminal software and alarming when the standard exceeds the standard is adopted.
  • the real-time monitoring software is added to the mobile software, and the distance between the monitoring terminal and the human body is added to the mobile terminal, and the original data collected in the authentication laboratory is added, and the real-time variation of the SAR value is monitored by an algorithm, when the SAR exceeds the standard Reduce the transmission power. If the transmission power is not reduced, an alarm is issued to protect the human body, prompting the user to change the usage environment (for example, changing a location), using the method (for example, using hands-free functions or headphones, etc.) to protect the user to the greatest extent. .
  • the preferred embodiments are described below in conjunction with the drawings.
  • the SAR value of the mobile terminal to the human body part (such as the head, the leg, etc.) is measured, and the SAR worst value (or maximum value), the hot spot d on the terminal (the strongest radiation point), and the hot spot are obtained.
  • the distance b from the SAR probe c, etc., as the initial value enabled in this embodiment, the real-time monitoring software and the ranging component d for monitoring the distance of the terminal from the human body are added to the mobile terminal, plus the original collected in the certification laboratory. Data, through the algorithm to monitor the real-time variation of the SAR value, when the over-standard is used, the transmission power is first reduced, and if not, the alarm is generated, so that the user can change the usage environment and the usage mode.
  • the mobile terminal operates through software.
  • the call When the call starts, it detects whether the user uses the headset, whether it is a hands-free call, etc. If not, the monitoring SAR software is turned on. At this time, the ranging function is turned on by default, and the distance of the mobile terminal hotspot from the human body is collected in real time. The real-time interception of the mobile terminal's transmit power TRP at this time is used as an input for real-time monitoring of the SAR program, and different K Q coefficients are called according to different frequency bands. The monitoring software of the mobile terminal processes the data and processes the results accordingly. When the SAR exceeds the standard, the transmission power is first reduced.
  • Equation 1 Substituting P and Xa+ba obtained in the previous step into Equation 1 obtains the SAR value at this time, and judges the allowable maximum value of SAR. If it is greater than the maximum value, the transmission power is preferentially reduced, and then the previous operation is performed. If reducing the transmit power does not effectively reduce the SAR value, then The purpose of the alarm is to prompt the user to change the call, or to keep the phone away from the body, or to hands-free calls, or to use headphones, or to end the call.
  • 4 is a preferred flow diagram of SAR monitoring in accordance with an embodiment of the present invention, which is described below in conjunction with FIG. The SAR detection program is run at the beginning of the call, and the call mode is judged first.
  • the detection program detects the transmission power P of the mobile phone at this time, and uses the ranging module to detect the distance Xa of the hot spot D to the human body; the algorithm 1 is substituted into the algorithm, and the SAR value SARx is obtained, and then the judgment is performed.
  • the program loops to the beginning stage to perform real-time detection; if SARx is greater than SAR0, after the judgment of the number of detections, if this judgment is still set Within a predetermined number of ⁇ , the transmission power is reduced, and then the transmission power at the time and the distance Xa are collected for SAR detection and judgment; if the current judgment exceeds the set number of ⁇ determinations, an alarm is activated to prompt the user to change the call mode. Or hands-free calling, or using a headset, or ending this call. If the above measures are enabled, the SAR detection program is not run. FIG.
  • the structure includes: a call mode detection module, a data acquisition module (corresponding to the parameter acquisition module 32), and a SAR calculation and determination module (corresponding to the SAR acquisition module 34). And alarm module (equivalent to processing module 36).
  • the call mode detection module detects when the program starts to detect the user's call. If the headset, Bluetooth or hands-free call is not used, the test program does not run; the data acquisition module collects the transmit power and hotspot to the human body during the call.
  • the SAR calculation judgment module calculates the SAR value according to the collected data, and then performs judgment processing with the maximum value SAR0 at the time of authentication, and takes into consideration the number of judgments, and cannot be looped without restriction; the alarm module is in the case of SAR exceeding the standard The user is prompted to exceed the SAR, prompting the user to prefer the call mode: handsfree, headset or end the call.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur un procédé de traitement d'un taux d'absorption spécifique (SAR) d'une énergie d'onde électromagnétique et sur un terminal mobile. Le procédé comprend les étapes suivantes : un terminal mobile obtient la distance entre le corps humain d'un utilisateur utilisant le terminal mobile et le terminal mobile, et la puissance d'émission du terminal mobile (S102) ; le terminal mobile obtient, selon la distance et la puissance d'émission, la valeur de SAR d'une énergie d'onde électromagnétique (S104) ; lorsque la valeur de SAR dépasse un seuil, le terminal mobile envoie une instruction pour réduire la puissance d'émission et/ou avertit l'utilisateur (S106). Grâce à l'invention, l'utilisateur du terminal mobile est protégé dans une certaine mesure.
PCT/CN2011/079591 2010-10-14 2011-09-13 Procédé de traitement d'un taux d'absorption spécifique d'une énergie d'onde électromagnétique et terminal mobile WO2012048610A1 (fr)

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CN201010507077.X 2010-10-14
CN201010507077.XA CN101980564B (zh) 2010-10-14 2010-10-14 电磁波能量吸收比处理方法及移动终端

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CN106231096A (zh) * 2016-07-29 2016-12-14 广东欧珀移动通信有限公司 一种终端的提醒方法、装置及移动终端
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CN108710039A (zh) * 2018-05-17 2018-10-26 南昌华勤电子科技有限公司 移动终端及其sar测试装置、sar测试方法
CN109151166B (zh) * 2018-07-13 2021-08-06 普联技术有限公司 一种通话时长的提醒方法、装置及移动终端
CN109270361B (zh) * 2018-10-10 2024-04-26 东莞华贝电子科技有限公司 移动终端的sar测试装置及方法
CN112929955B (zh) * 2021-01-14 2023-07-25 深圳市锐尔觅移动通信有限公司 降低sar值的方法、装置、终端设备及存储介质
CN113556427A (zh) * 2021-08-02 2021-10-26 Tcl通讯（宁波）有限公司 移动终端辐射记录方法、装置、移动终端和存储介质
CN114513221B (zh) * 2021-12-31 2024-04-19 维沃移动通信有限公司 电磁波吸收比调整方法、装置和终端

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CN107295141B (zh) * 2017-07-12 2020-12-15 惠州Tcl移动通信有限公司 一种降低手机辐射的方法、调制解调器及手机
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