WO2013117040A1 - 一种基于传感器调整电磁波能量吸收比的方法及移动终端 - Google Patents

一种基于传感器调整电磁波能量吸收比的方法及移动终端 Download PDF

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Publication number
WO2013117040A1
WO2013117040A1 PCT/CN2012/073809 CN2012073809W WO2013117040A1 WO 2013117040 A1 WO2013117040 A1 WO 2013117040A1 CN 2012073809 W CN2012073809 W CN 2012073809W WO 2013117040 A1 WO2013117040 A1 WO 2013117040A1
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WO
WIPO (PCT)
Prior art keywords
mobile terminal
transmission power
sensor
signal transmission
terminal
Prior art date
Application number
PCT/CN2012/073809
Other languages
English (en)
French (fr)
Inventor
麻小强
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP12867814.1A priority Critical patent/EP2787780A4/en
Priority to US14/371,563 priority patent/US20140357207A1/en
Publication of WO2013117040A1 publication Critical patent/WO2013117040A1/zh

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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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and a mobile terminal for adjusting an electromagnetic energy absorption ratio (SAR) based on a sensor.
  • SAR electromagnetic energy absorption ratio
  • Mobile terminals for example, mobile phones and tablets
  • SAR is usually called the specific absorption rate and refers to the electromagnetic wave energy absorption ratio of the mobile terminal. It is the electromagnetic power absorbed or consumed by the human tissue per unit mass, and the unit is W/kg, or mW/mg.
  • the SAR requirements under FCC certification are extremely high, for example: When the tablet has a diagonal size greater than 8 inches, the other five faces of the LCD surface need to be tested.
  • the FCC stipulates that all mobile terminals should have a SAR of less than 1.6mW/lg under reasonable test methods.
  • the technical problem to be solved by the embodiments of the present invention is to provide a method for adjusting an electromagnetic wave energy absorption ratio based on a sensor and a mobile terminal, which improves the real-time performance of the electromagnetic wave energy absorption ratio of the mobile terminal.
  • an embodiment of the present invention provides a method for adjusting an electromagnetic wave energy absorption ratio based on a sensor, including: a mobile terminal according to whether a distance between a human body and the mobile terminal learned by the proximity sensor is within a preset distance range and And determining whether the bottom side of the current position of the mobile terminal is the adjacent side of the terminal antenna, which is known by the gravity sensor, and adjusting the signal transmission power of the mobile terminal.
  • the above method can also have the following characteristics:
  • the mobile terminal reduces, by using the proximity sensor, that the distance between the human body and the mobile terminal is within a preset distance range, and reduces the signal transmission power of the mobile terminal;
  • the mobile terminal improves the signal transmission power of the mobile terminal by using the proximity sensor to know that the distance between the human body and the mobile terminal is not within a preset distance range.
  • the signal transmission power of the mobile terminal is reduced
  • the signal transmission power of the mobile terminal is improved.
  • the mobile terminal learns that the distance between the human body and the mobile terminal is within a preset distance range by using the proximity sensor, and reduces the movement when the bottom side of the current position of the mobile terminal is the adjacent side of the terminal antenna by the gravity sensor
  • the signal transmission power of the terminal
  • the mobile terminal learns by the proximity sensor that the distance between the human body and the mobile terminal is not within a preset distance range, or that the bottom side of the current position of the mobile terminal is not the adjacent side of the terminal antenna by the gravity sensor, The signal transmission power of the mobile terminal.
  • an embodiment of the present invention further provides a mobile terminal that adjusts an electromagnetic wave energy absorption ratio based on a sensor, where the mobile terminal includes a sensor data collection module, a state monitoring module, and a transmission power adjustment module that are sequentially connected;
  • the sensor data collection module is configured to: collect data of the proximity sensor and/or the gravity sensor and report the data to the status monitoring module;
  • the status monitoring module is configured to: monitor data reporting by the sensor data collection module, determine, according to data of the proximity sensor, whether the distance between the human body and the mobile terminal is within a preset distance range and/or according to data of the gravity sensor Whether the bottom side of the current location of the mobile terminal is an adjacent side of the terminal antenna, and notifying the transmit power adjustment module;
  • the transmit power adjustment module is configured to: adjust a signal transmit power of the mobile terminal according to status information learned from the status monitoring module.
  • the above mobile terminal can also have the following features:
  • the transmit power adjustment module is configured to: when the distance between the human body and the mobile terminal is within a preset distance range, reduce signal transmission power of the mobile terminal; and the distance between the human body and the mobile terminal is not at a preset distance In the range, the signal transmission power of the mobile terminal is increased.
  • the above mobile terminal can also have the following features:
  • the transmit power adjustment module is configured to: when the bottom side of the current location of the mobile terminal is an adjacent side of the terminal antenna, reduce a signal transmission power of the mobile terminal; the bottom side of the current location of the mobile terminal is not When adjacent sides of the terminal antenna are used, the signal transmission power of the mobile terminal is increased.
  • the above mobile terminal can also have the following features:
  • the transmit power adjustment module is configured to: when the distance between the human body and the mobile terminal is within a preset distance range and the bottom side of the current position of the mobile terminal is known by the gravity sensor to be an adjacent side of the terminal antenna, The signal transmitting power of the mobile terminal is improved when the distance between the human body and the mobile terminal is not within a preset distance range or when the bottom side of the current position of the mobile terminal is not the adjacent side of the terminal antenna by the gravity sensor Signal transmission power.
  • the above mobile terminal can also have the following features:
  • the status monitoring module is configured to: determine, by the data of the gravity sensor, a display direction of the screen of the mobile terminal to determine a bottom side of the current position of the mobile terminal.
  • the embodiment of the invention controls the signal transmission power of the mobile terminal according to the data of the sensor, thereby controlling the energy absorption ratio of the electromagnetic wave, solving the problem that the SAR value exceeding the standard in the prior art affects the human body, and protecting the user of the mobile terminal in real time.
  • FIG. 1 is a schematic diagram of the appearance of a mobile terminal according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of functional modules of a mobile terminal according to an embodiment of the present invention
  • 3 is a schematic diagram of a location of a mobile terminal in an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a method for adjusting an electromagnetic wave energy absorption ratio based on a sensor in a specific embodiment.
  • the face of the display screen of the mobile terminal in the embodiment of the present invention may be referred to as a front side
  • the opposite side of the face on which the display screen is located is referred to as a back side
  • the other four faces are referred to as side faces.
  • An antenna is disposed on the mobile terminal.
  • the antenna is disposed on the back of the terminal
  • the proximity sensor is further disposed on the mobile terminal.
  • the position of the proximity sensor can be arbitrarily set and can be a certain distance from the antenna.
  • the adjacent side of the antenna refers to the side closest to the antenna, and the adjacent side of the antenna may be one or two.
  • the layout of the antenna position is not limited to one side of the hardware circuit board, but will be appropriately adjusted according to the device screen size or hardware circuit design. Regardless of the design and layout, the SAR value can be determined according to the antenna layout position. The side of the standard.
  • the design or manufacturer of the mobile terminal needs to face the requirements of the certification body for the SAR value exceeding the standard test.
  • the SAR value is controlled by controlling the transmission power of the mobile terminal through the data of the sensor, thereby playing a role in protecting the human body.
  • the mobile terminal that adjusts the electromagnetic wave energy absorption ratio based on the sensor includes a sensor data collection module 201, a state monitoring module 202, and a transmission power adjustment module 203 that are sequentially connected.
  • the sensor data collection module 201 is configured to collect data of the proximity sensor and/or the gravity sensor and report the data to the status monitoring module 202;
  • the status monitoring module 202 is configured to monitor data reporting of the sensor data collection module, determine, according to the data of the proximity sensor, whether the distance between the human body and the mobile terminal is within a preset distance range and/or determine according to data of the gravity sensor. Whether the bottom side of the current location of the mobile terminal is the adjacent side of the terminal antenna, and notified to the transmit power adjustment module 203;
  • the transmit power adjustment module 203 is configured to adjust the signal transmit power of the mobile terminal based on the status information learned from the status monitoring module 202.
  • the data of 4 ⁇ on the proximity sensor is distance>0 or distance), respectively indicating that the distance between the human body and the mobile terminal is not within a preset distance range and is within a preset distance range.
  • the sensor data collection module 201 can define a distance flag bit, and when the flag bit is 1, the human body and the The distance of the mobile terminal is not within the preset distance range. When the flag is 0, it indicates that the distance between the human body and the mobile terminal is within a preset distance range.
  • the gravity sensor determines the screen display direction of the terminal according to the gravity action when the mobile terminal rotates, and can be defined as four directions, which are respectively distinguished by four values of 0, 1, 2, 3, no matter how the mobile terminal is rotated, the screen display direction Both are converted between these four directions, and the sensor data collection module (201) can use rotation to define values in four directions.
  • the identification of the adjacent side of the antenna can be one of these four direction values. As shown in FIG. 3, the identifier of the adjacent side of the antenna is 1 , and when the mobile terminal rotates to the position shown in FIG. 3, the value of rotation is 1, and the adjacent side of the antenna can be considered to be the closest to the user, and the side needs to reduce the SAR. value.
  • the status monitoring module 202 timely monitors the reporting of sensor data. To dynamically adjust the signal transmission power, it depends not only on the correct reporting of the sensor data, but also on the timely and uninterrupted monitoring of the reported data.
  • the status monitoring module 202 can register for listening events, can listen for events in real time, or can listen at the right time. When the data reported by the proximity sensor changes, the data of the proximity sensor is monitored, and when the mobile terminal is rotated, the value of the screen display direction during the rotation event is monitored.
  • the transmit power adjustment module 203 processes the status data in the status monitoring module 202 as a command to be sent, and then delivers the message in the form of a message, and may also define an operation parameter.
  • the operation parameter value is 1
  • the value of this operation parameter is 0.
  • the use of the above two sensor data by the transmit power adjustment module 203 can be freely combined, and any one that satisfies the condition or both can constitute a trigger condition for adjusting the transmit power of the signal. Specifically, there are three forms:
  • the transmit power adjustment module 203 reduces the signal transmission power of the mobile terminal when the distance between the human body and the mobile terminal is within a preset distance range; the distance between the human body and the mobile terminal is not within the preset distance range. At the same time, the signal transmission power of the mobile terminal is increased.
  • the transmit power adjustment module 203 reduces the signal transmission power of the mobile terminal when the bottom side of the current location of the mobile terminal is the adjacent side of the terminal antenna; the bottom side of the current location of the mobile terminal is not the terminal. Increasing the signal of the mobile terminal when adjacent sides of the antenna Transmit power.
  • the transmit power adjustment module 203 reduces the movement when the distance between the human body and the mobile terminal is within a preset distance range and the bottom side of the current position of the mobile terminal is known by the gravity sensor to be the adjacent side of the terminal antenna.
  • the status monitoring module 202 can determine the display direction of the screen of the mobile terminal by using the data of the gravity sensor to determine the bottom side of the current position of the mobile terminal.
  • the method for adjusting an electromagnetic wave energy absorption ratio based on a sensor includes: determining, by a mobile terminal, whether a distance between a human body and the mobile terminal obtained by the proximity sensor is within a preset distance range and/or a bottom position of the current location of the mobile terminal learned by a gravity sensor Whether the side is the adjacent side of the terminal antenna adjusts the signal transmission power of the mobile terminal.
  • the mobile terminal reduces the signal transmission power of the mobile terminal when the distance between the human body and the mobile terminal is within a preset distance range by using the proximity sensor; the mobile terminal learns the human body and the When the distance of the mobile terminal is not within the preset distance range, the signal transmission power of the mobile terminal is increased.
  • the mobile terminal when the mobile terminal learns that the bottom side of the current location of the mobile terminal is the adjacent side of the terminal antenna by using the gravity sensor, the signal transmission power of the mobile terminal is reduced; and the mobile terminal learns the movement by using the gravity sensor.
  • the signal transmission power of the mobile terminal is increased.
  • the mobile terminal learns that the distance between the human body and the mobile terminal is within a preset distance range by using the proximity sensor, and is determined by the gravity sensor that the bottom side of the current position of the mobile terminal is the adjacent side of the terminal antenna. a signal transmitting power of the mobile terminal; the mobile terminal learns, by using the proximity sensor, that the distance between the human body and the mobile terminal is not within a preset distance range, or that the bottom side of the current position of the mobile terminal is not a terminal antenna by using a gravity sensor When adjacent sides are raised, the signal transmission power of the mobile terminal is increased. For example, when the user holds the mobile terminal in the position shown in FIG. 3, the current short side of the mobile terminal can be considered as the side closest to the user, and the side is the adjacent side of the antenna, and the mobile terminal reduces the signal transmission power. Ensure that the SAR value of this side of the antenna is up to standard.
  • Step 401 The mobile terminal is powered on, the system is started, and the proximity sensor and the gravity sensor are detected to be working normally, including software and hardware detection, such as normal, and step 402 is performed, and if not, the operation is exited;
  • Step 402 The proximity sensor and the gravity sensor report the data
  • Step 403 Convert the data reported by the proximity sensor and the gravity sensor into user behavior data, such as proximity sensor data and gravity sensor data.
  • Step 404 Monitor the change status of the data in real time by listening to the event.
  • Step 405 Convert the obtained monitoring data into a known user behavior, such as a set of values 0, 1 representing whether the user is close to the mobile terminal, and another set of values 0, 1, 2, 3 representing the four directions of the terminal display screen. .
  • Step 406 it is determined whether to adjust the signal transmission power, if yes, go to step 407, if no, go back to step 404;
  • Step 407 adjusting signal transmission power.
  • the timing for adjusting the signal transmission power may be the timing adjustment of the system setting, that is, the data of the proximity sensor and the gravity sensor are judged at each adjustment time, and if the condition is satisfied, the adjustment is not adjusted.
  • the timing of adjusting the signal transmission power may be determined according to the data of the proximity sensor and the gravity sensor. For example, when the terminal rotates, that is, when the data of the proximity sensor changes or the data of the gravity sensor changes, the proximity sensor and the gravity sensor are judged. The data situation, if the conditions are met, the adjustment is not adjusted.
  • the embodiment of the present invention controls the signal transmission power of the mobile terminal according to the data of the sensor, thereby controlling the energy absorption ratio of the electromagnetic wave, and solves the problem that the SAR value exceeding the standard in the prior art affects the human body, and protects the user of the mobile terminal in real time.

Abstract

一种基于传感器调整电磁波能量吸收比的方法及移动终端。该移动终端根据通过接近度传感器获知的人体与所述移动终端的距离是否位于预设距离范围和/或通过重力传感器获知的所述移动终端当前位置的底侧面是否是终端天线的相邻侧面，调整移动终端的信号发射功率。本发明的技术方案根据传感器的数据控制移动终端信号发射功率，从而控制电磁波能量吸收比（SAR），解决了现有技术中SAR值超标对人体造成影响的问题，实时地保护了移动终端的使用者。

Description

一种基于传感器调整电磁波能量吸收比的方法及移动终端
技术领域
本发明涉及通信领域， 具体而言， 尤其涉及一种基于传感器调整电磁波 能量吸收比 （Specific Absorption Rate, 简称为 SAR ) 的方法及移动终端。
背景技术
移动终端 （例如， 手机、 平板电脑） 已经成为不可缺少的通讯工具， 但 同时， 移动终端的发射功率对人体的辐射也受到了各个国家和组织的重视。
SAR通常称为比吸收率， 是指移动终端电磁波能量吸收比值， 为单位质 量的人体组织所吸收或消耗的电磁功率， 单位为 W/kg, 或者 mW/mg。 FCC 认证下的 SAR要求极高， 比如： 平板电脑在整机对角线尺寸大于 8英寸时， 需要测试除 LCD面的其余 5个面。 FCC规定所有移动终端在合理的测试方法 下， SAR应满足小于 1.6mW/lg。 现有技术中， 常用的降低 SAR值的技术有： 选用低 SAR的天线， 降低移动终端的发射功率， 或在移动终端机壳或天线的 表面涂吸波层等， 虽然上述方法在某种程度上能达到降低 SAR的目的， 但均 存在一定的缺陷。 如天线布局空间不足； TRP值的降低， 影响移动终端通信 质量等。 发明内容
本发明实施例要解决的技术问题是提供一种基于传感器调整电磁波能量 吸收比的方法及移动终端， 提高移动终端控制电磁波能量吸收比的实时性。
为了解决上述技术问题， 本发明实施例提供了一种基于传感器调整电磁 波能量吸收比的方法， 包括： 移动终端根据通过接近度传感器获知的人体与 所述移动终端的距离是否位于预设距离范围和 /或通过重力传感器获知的所 述移动终端当前位置的底侧面是否是终端天线的相邻侧面， 调整所述移动终 端的信号发射功率。
上述方法还可以具有以下特点： 所述移动终端通过接近度传感器获知人体与所述移动终端的距离位于预 设距离范围时， 降低所述移动终端的信号发射功率；
所述移动终端通过接近度传感器获知人体与所述移动终端的距离不位于 预设距离范围时， 提高所述移动终端的信号发射功率。
上述方法还可以具有以下特点：
所述移动终端通过重力传感器获知所述移动终端当前位置的底侧面是终 端天线的相邻侧面时， 降低所述移动终端的信号发射功率；
所述移动终端通过重力传感器获知所述移动终端当前位置的底侧面不是 终端天线的相邻侧面时， 提高所述移动终端的信号发射功率。
上述方法还可以具有以下特点：
所述移动终端通过接近度传感器获知人体与所述移动终端的距离位于预 设距离范围， 并且通过重力传感器获知所述移动终端当前位置的底侧面是终 端天线的相邻侧面时， 降低所述移动终端的信号发射功率；
所述移动终端通过接近度传感器获知人体与所述移动终端的距离不位于 预设距离范围， 或者通过重力传感器获知所述移动终端当前位置的底侧面不 是终端天线的相邻侧面时， 提高所述移动终端的信号发射功率。
上述方法还可以具有以下特点：
定。
为了解决上述技术问题， 本发明实施例还提供了一种基于传感器调整电 磁波能量吸收比的移动终端， 所述移动终端包括依次相连的传感器数据釆集 模块、 状态监控模块、 发射功率调整模块；
所述传感器数据釆集模块设置为： 釆集接近度传感器和 /或重力传感器的 数据并上报至所述状态监控模块；
所述状态监控模块设置为： 监控所述传感器数据釆集模块的数据上报， 根据接近度传感器的数据判断人体与所述移动终端的距离是否位于预设距离 范围和 /或根据重力传感器的数据判断所述移动终端当前位置的底侧面是否 是终端天线的相邻侧面， 并通知至所述发射功率调整模块； 所述发射功率调整模块设置为： 根据从所述状态监控模块获知的状态信 息调整所述移动终端的信号发射功率。
上述移动终端还可以具有以下特点：
所述发射功率调整模块是设置为： 在人体与所述移动终端的距离位于预 设距离范围时， 降低所述移动终端的信号发射功率； 在人体与所述移动终端 的距离不位于预设距离范围时， 提高所述移动终端的信号发射功率。
上述移动终端还可以具有以下特点：
所述发射功率调整模块是设置为： 在所述移动终端当前位置的底侧面是 终端天线的相邻侧面时， 降低所述移动终端的信号发射功率； 在所述移动终 端当前位置的底侧面不是终端天线的相邻侧面时， 提高所述移动终端的信号 发射功率。
上述移动终端还可以具有以下特点：
所述发射功率调整模块是设置为： 在人体与所述移动终端的距离位于预 设距离范围并且通过重力传感器获知所述移动终端当前位置的底侧面是终端 天线的相邻侧面时， 降低所述移动终端的信号发射功率； 在人体与所述移动 终端的距离不位于预设距离范围或者通过重力传感器获知所述移动终端当前 位置的底侧面不是终端天线的相邻侧面时， 提高所述移动终端的信号发射功 率。
上述移动终端还可以具有以下特点：
所述状态监控模块是设置为： 通过重力传感器的数据判断移动终端的画 面显示方向从而确定所述移动终端当前位置的底侧面。
本发明实施例根据传感器的数据控制移动终端信号发射功率， 从而控制 电磁波能量吸收比， 解决了现有技术 SAR值超标对人体造成影响的问题， 实 时地保护了移动终端的使用者。 附图概述
图 1是本发明实施例中移动终端的外观示意图；
图 2是本发明实施例中移动终端的功能模块组成示意图； 图 3是本发明实施例中移动终端的一种位置示意图；
图 4是具体实施例中基于传感器调整电磁波能量吸收比的方法示意图。
本发明的较佳实施方式
如图 1所示，本发明实施例中的移动终端的显示屏幕所在面可称为正面， 显示屏幕所在面的对面称为背面， 其它四个面称为侧面。 移动终端上设置有 天线， 例如天线设置于终端背面， 移动终端上还设置有接近度传感器， 此接 近度传感器的位置可以任意设置， 可以距离天线一定距离。 天线相邻侧面是 指离天线最近的侧面， 天线相邻侧面可以是一个也可以是两个。
在实施时， 天线位置的布局不局限于硬件电路板的某一边， 而会根据设 备屏幕尺寸或硬件电路设计做适当的调整， 不管如何设计与布局， 都可以根 据天线布局位置能够确定需要 SAR值达标的侧面。
移动终端设计或制造者均需面对认证机构对 SAR值超标测试的要求，通 过本方案， 在通过传感器的数据控制移动终端的发射功率从而控制 SAR值， 从而起到对人体保护的作用。
如图 2所示， 基于传感器调整电磁波能量吸收比的移动终端包括依次相 连的传感器数据釆集模块 201、 状态监控模块 202、 发射功率调整模块 203。
传感器数据釆集模块 201 , 设置为釆集接近度传感器和 /或重力传感器的 数据并上报至所述状态监控模块 202;
状态监控模块 202 , 设置为监控所述传感器数据釆集模块的数据上报， 根据接近度传感器的数据判断人体与所述移动终端的距离是否位于预设距离 范围和 /或根据重力传感器的数据判断所述移动终端当前位置的底侧面是否 是终端天线的相邻侧面， 并通知至所述发射功率调整模块 203;
发射功率调整模块 203 , 设置为根据从所述状态监控模块 202获知的状 态信息调整所述移动终端的信号发射功率。
其中， 接近度传感器上 4艮的数据为 distance>0或 distanced), 分别表示人 体与所述移动终端的距离不位于预设距离范围和位于预设距离范围。 传感器 数据釆集模块 201可以定义一距离标志位， 此标志位为 1时表示人体与所述 移动终端的距离不位于预设距离范围， 此标志位为 0时表示人体与所述移动 终端的距离位于预设距离范围。
其中， 重力传感器在移动终端旋转时依据重力作用确定终端的画面显示 方向， 可以定义为四个方向， 分别用 0、 1、 2、 3四个值来区分， 不论如何旋 转移动终端， 画面显示方向都在这四个方向间转换， 传感器数据釆集模块 ( 201 )可以使用 rotation来定义四个方向的值。 天线相邻侧面的标识可以是 此四个方向值中的一个。 如图 3所示， 天线相邻侧面的标识为 1 , 移动终端 旋转为图 3所示位置时， rotation的值为 1 , 则可以认为此天线相邻侧面离用 户距离最近， 此侧面需要降低 SAR值。
状态监控模块 202适时监控传感器数据的上报， 要做到动态调整信号发 射功率， 不仅依赖于传感器数据正确的上报， 更依赖于对上报数据适时、 无 间断的监听。 状态监控模块 202可以注册监听事件， 可以实时监听事件或可 以适时监听。 接近度传感器上报的数据有变化时， 便监听接近度传感器的数 据， 移动终端被旋转时， 便监听旋转事件中画面显示方向的值。
其中， 发射功率调整模块 203将状态监控模块 202中的状态数据处理为 需要发送的命令， 然后以消息的形式下发， 也可以定义操作参数， 需要降低 发射功率时， 指示此操作参数值为 1 , 需要提高发射功率时， 指示此操作参 数值为 0。
发射功率调整模块 203对上述两个传感器数据的使用可以自由的组合， 任何一个满足条件或两者都满足，均可以构成调整信号发射功率的触发条件。 具体可以有以下三种形式：
实施例一中发射功率调整模块 203在人体与所述移动终端的距离位于预 设距离范围时， 降低所述移动终端的信号发射功率； 在人体与所述移动终端 的距离不位于预设距离范围时， 提高所述移动终端的信号发射功率。
实施例二中发射功率调整模块 203在所述移动终端当前位置的底侧面是 终端天线的相邻侧面时， 降低所述移动终端的信号发射功率； 在所述移动终 端当前位置的底侧面不是终端天线的相邻侧面时， 提高所述移动终端的信号 发射功率。
实施例三中发射功率调整模块 203在人体与所述移动终端的距离位于预 设距离范围并且通过重力传感器获知所述移动终端当前位置的底侧面是终端 天线的相邻侧面时， 降低所述移动终端的信号发射功率； 在人体与所述移动 终端的距离不位于预设距离范围或者通过重力传感器获知所述移动终端当前 位置的底侧面不是终端天线的相邻侧面时， 提高所述移动终端的信号发射功 率。
其中， 状态监控模块 202可以通过重力传感器的数据判断移动终端的画 面显示方向从而确定所述移动终端当前位置的底侧面。
基于传感器调整电磁波能量吸收比的方法包括： 移动终端根据通过接近 度传感器获知的人体与所述移动终端的距离是否位于预设距离范围和 /或通 过重力传感器获知的所述移动终端当前位置的底侧面是否是终端天线的相邻 侧面调整所述移动终端的信号发射功率。
实施例一中， 移动终端通过接近度传感器获知人体与所述移动终端的距 离位于预设距离范围时， 降低所述移动终端的信号发射功率； 所述移动终端 通过接近度传感器获知人体与所述移动终端的距离不位于预设距离范围时， 提高所述移动终端的信号发射功率。
实施例二中， 移动终端通过重力传感器获知所述移动终端当前位置的底 侧面是终端天线的相邻侧面时， 降低所述移动终端的信号发射功率； 所述移 动终端通过重力传感器获知所述移动终端当前位置的底侧面不是终端天线的 相邻侧面时， 提高所述移动终端的信号发射功率。
实施例三中， 移动终端通过接近度传感器获知人体与所述移动终端的距 离位于预设距离范围， 并且通过重力传感器获知所述移动终端当前位置的底 侧面是终端天线的相邻侧面时， 降低所述移动终端的信号发射功率； 所述移 动终端通过接近度传感器获知人体与所述移动终端的距离不位于预设距离范 围， 或者通过重力传感器获知所述移动终端当前位置的底侧面不是终端天线 的相邻侧面时， 提高所述移动终端的信号发射功率。 举例说明： 用户以图 3所示的位置手持移动终端时， 可以认为移动终端 的当前底部短侧面是离用户最近的侧面， 并且此侧面是天线的相邻侧面， 则 移动终端降低信号发射功率， 保证天线的此侧面的 SAR值达到标准。
具体实施例
如图 4所示， 具体包括以下步骤：
步骤 401 , 移动终端开机， 系统启动， 检测接近度传感器和重力传感器 是否工作正常， 包括软、 硬件的检测， 如正常， 执行步骤 402, 如不正常， 则退出运行；
步骤 402, 接近度传感器和重力传感器上报数据；
步骤 403 , 将接近度传感器和重力传感器上报的数据转换为用户行为数 据， 如接近度传感器数据和重力传感器数据。
步骤 404, 通过监听事件实时监听数据的变化状态。
步骤 405 , 将获取到的监听数据， 转化为已知的用户行为， 如一组值 0、 1代表用户是否靠近移动终端， 另一组值 0、 1、 2、 3代表终端显示画面的四 个方向。
步骤 406,判断是否调整信号发射功率，如果是，执行步骤 407 ,如果否， 转回步骤 404;
步骤 407 , 调整信号发射功率。
调整信号发射功率的时机可以是系统设置的定时调整， 即在每个调整时 刻判断接近度传感器和重力传感器的数据情况， 如果满足条件则调整否则不 调整。 调整信号发射功率的时机可以根据接近度传感器和重力传感器的数据 情况而定， 例如终端旋转时， 即接近度传感器的数据发生变化时或者重力传 感器的数据发生变化时， 判断接近度传感器和重力传感器的数据情况， 如果 满足条件则调整否则不调整。
需要说明的是， 在不冲突的情况下， 本申请中的实施例及实施例中的特 征可以相互任意组合。 当然， 本发明还可有其他多种实施例， 在不背离本发明精神及其实质的 变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 所述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
工业实用性 本发明实施例根据传感器的数据控制移动终端信号发射功率， 从而控制 电磁波能量吸收比， 解决了现有技术 SAR值超标对人体造成影响的问题， 实 时地保护了移动终端的使用者。

Claims

权 利 要 求 书
1、 一种基于传感器调整电磁波能量吸收比的方法， 其包括：
移动终端根据通过接近度传感器获知的人体与所述移动终端的距离是否 位于预设距离范围和 /或通过重力传感器获知的所述移动终端当前位置的底 侧面是否是终端天线的相邻侧面， 调整所述移动终端的信号发射功率。
2、 如权利要求 1所述的方法，其中， 所述调整所述移动终端的信号发射 功率的步骤包括：
所述移动终端通过接近度传感器获知人体与所述移动终端的距离位于预 设距离范围时， 降低所述移动终端的信号发射功率；
所述移动终端通过接近度传感器获知人体与所述移动终端的距离不位于 预设距离范围时， 提高所述移动终端的信号发射功率。
3、 如权利要求 1所述的方法，其中， 所述调整所述移动终端的信号发射 功率的步骤包括：
所述移动终端通过重力传感器获知所述移动终端当前位置的底侧面是终 端天线的相邻侧面时， 降低所述移动终端的信号发射功率；
所述移动终端通过重力传感器获知所述移动终端当前位置的底侧面不是 终端天线的相邻侧面时， 提高所述移动终端的信号发射功率。
4、 如权利要求 1所述的方法，其中， 所述调整所述移动终端的信号发射 功率的步骤包括：
所述移动终端通过接近度传感器获知人体与所述移动终端的距离位于预 设距离范围， 并且通过重力传感器获知所述移动终端当前位置的底侧面是终 端天线的相邻侧面时， 降低所述移动终端的信号发射功率；
所述移动终端通过接近度传感器获知人体与所述移动终端的距离不位于 预设距离范围， 或者通过重力传感器获知所述移动终端当前位置的底侧面不 是终端天线的相邻侧面时， 提高所述移动终端的信号发射功率。
5、 如权利要求 1所述的方法，其中， 所述移动终端当前位置的底侧面的 标识通过移动终端的画面显示方向确定。
6、 一种基于传感器调整电磁波能量吸收比的移动终端，所述移动终端包 括依次相连的传感器数据釆集模块、 状态监控模块、 发射功率调整模块； 所述传感器数据釆集模块设置为： 釆集接近度传感器和 /或重力传感器的 数据并上报至所述状态监控模块；
所述状态监控模块设置为： 监控所述传感器数据釆集模块的数据上报， 根据接近度传感器的数据判断人体与所述移动终端的距离是否位于预设距离 范围和 /或根据重力传感器的数据判断所述移动终端当前位置的底侧面是否 是终端天线的相邻侧面， 并通知至所述发射功率调整模块；
所述发射功率调整模块设置为： 根据从所述状态监控模块获知的状态信 息调整所述移动终端的信号发射功率。
7、 如权利要求 6所述的移动终端， 其中，
所述发射功率调整模块是设置为： 在人体与所述移动终端的距离位于预 设距离范围时， 降低所述移动终端的信号发射功率； 在人体与所述移动终端 的距离不位于预设距离范围时， 提高所述移动终端的信号发射功率。
8、 如权利要求 6所述的移动终端， 其中，
所述发射功率调整模块是设置为： 在所述移动终端当前位置的底侧面是 终端天线的相邻侧面时， 降低所述移动终端的信号发射功率； 在所述移动终 端当前位置的底侧面不是终端天线的相邻侧面时， 提高所述移动终端的信号 发射功率。
9、 如权利要求 6所述的移动终端， 其中，
所述发射功率调整模块是设置为： 在人体与所述移动终端的距离位于预 设距离范围并且通过重力传感器获知所述移动终端当前位置的底侧面是终端 天线的相邻侧面时， 降低所述移动终端的信号发射功率； 在人体与所述移动 终端的距离不位于预设距离范围或者通过重力传感器获知所述移动终端当前 位置的底侧面不是终端天线的相邻侧面时， 提高所述移动终端的信号发射功 率。
10、 如权利要求 6所述的移动终端， 其中，
所述状态监控模块是设置为： 通过重力传感器的数据判断移动终端的画 面显示方向从而确定所述移动终端当前位置的底侧面。
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