CN113746957A - Screen-down structure and scene recognition method of mobile phone based on screen-down structure - Google Patents

Screen-down structure and scene recognition method of mobile phone based on screen-down structure Download PDF

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CN113746957A
CN113746957A CN202010469677.5A CN202010469677A CN113746957A CN 113746957 A CN113746957 A CN 113746957A CN 202010469677 A CN202010469677 A CN 202010469677A CN 113746957 A CN113746957 A CN 113746957A
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copper sheet
suspended
suspended copper
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CN113746957B (en
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李月亮
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Beijing Xiaomi Mobile Software Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • 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

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Abstract

本发明提供了一种屏下结构及基于该屏下结构的手机场景识别方法。一种屏下结构，其特征在于，包括柔性线路板、PCB板、悬浮铜皮、SAR传感器和中框框架，其中，所述柔性线路板、SAR传感器、PCB板和悬浮铜皮设置于所述中框框架上；所述柔性线路板一端与PCB板连接，所述柔性线路板另一端和悬浮铜皮连接，所述悬浮铜皮分别与所述中框框架和SAR传感器连接。本发明充分利用屏下SAR传感器及对手机特殊的结构处理，利用屏幕上自带的铜皮部位进行方案解决，实现多场景的识别。

Figure 202010469677

The invention provides an off-screen structure and a mobile phone scene recognition method based on the off-screen structure. An under-screen structure is characterized in that it includes a flexible circuit board, a PCB board, a suspended copper sheet, a SAR sensor and a middle frame, wherein the flexible circuit board, the SAR sensor, the PCB board and the suspended copper sheet are arranged on the on the middle frame; one end of the flexible circuit board is connected with the PCB board, and the other end of the flexible circuit board is connected with a suspended copper sheet, and the suspended copper sheet is respectively connected with the middle frame and the SAR sensor. The invention makes full use of the SAR sensor under the screen and the special structural processing of the mobile phone, and uses the copper skin part on the screen to solve the solution, so as to realize the recognition of multiple scenes.

Figure 202010469677

Description

屏下结构及基于该屏下结构的手机的场景识别方法Under-screen structure and scene recognition method of mobile phone based on the under-screen structure

技术领域technical field

本发明涉及手机场景识别技术领域，特别涉及一种屏下结构及基于该屏下结构的手机的场景识别方法。The invention relates to the technical field of mobile phone scene recognition, in particular to an off-screen structure and a mobile phone scene recognition method based on the off-screen structure.

背景技术Background technique

目前，随着手机通信需求功能增加，2G、3G、4G和5G通信频段在手机上的广泛应用及曲面屏幕，环绕屏幕等黑科技的使用。手机侧边边框作为天线的方案已经开始普遍实用。但如侦测侧边天线附近物体靠近的情况，及如何降低侧边SAR值，目前侧边侦测除非ID和结构同意悬浮边框枝节作为检测枝节外，并无其他办法。针对侧边的降SAR方案也是如此，所以目前的降SAR方案主要是直接降低传导的 POWER，而并无其它有效方法。At present, with the increase of mobile communication requirements, the wide application of 2G, 3G, 4G and 5G communication frequency bands on mobile phones and the use of curved screens, surround screens and other black technologies. The solution of using the side frame of the mobile phone as an antenna has begun to be widely used. However, such as detecting the proximity of objects near the side antenna, and how to reduce the SAR value of the side, there is no other way to detect the side unless the ID and the structure agree to the suspension of the frame branch as the detection branch. The same is true for the SAR reduction scheme for the side, so the current SAR reduction scheme mainly directly reduces the POWER of conduction, and there is no other effective method.

发明内容SUMMARY OF THE INVENTION

本发明提供一种屏下结构及基于该屏下结构的手机的场景识别方法，用以解决上述情况。The present invention provides an off-screen structure and a mobile phone scene recognition method based on the off-screen structure to solve the above situation.

一种屏下结构，其特征在于，包括柔性线路板、PCB板、悬浮铜皮、SAR传感器和中框框架，其中，An under-screen structure is characterized in that it includes a flexible circuit board, a PCB board, a suspended copper sheet, a SAR sensor and a middle frame, wherein,

所述柔性线路板、SAR传感器、PCB板和悬浮铜皮设置于所述中框框架上；The flexible circuit board, the SAR sensor, the PCB board and the suspended copper skin are arranged on the middle frame;

所述柔性线路板一端与PCB板连接，其另一端和悬浮铜皮连接，所述悬浮铜皮分别与所述中框框架和SAR传感器连接。One end of the flexible circuit board is connected to the PCB board, and the other end of the flexible circuit board is connected to a suspended copper sheet, and the suspended copper sheet is respectively connected to the middle frame and the SAR sensor.

作为本发明的一种实施例：所述悬浮铜皮包括屏幕悬浮铜皮和屏侧悬浮铜皮；其中，As an embodiment of the present invention: the suspended copper sheet includes a screen suspended copper sheet and a screen side suspended copper sheet; wherein,

所述屏幕悬浮铜皮和屏侧悬浮铜皮分别与所述SAR传感器连接；The screen suspension copper sheet and the screen side suspension copper sheet are respectively connected with the SAR sensor;

所述悬浮铜皮由屏幕的内层金属铜皮切割形成，所述屏幕包括直面屏或曲面屏。The suspended copper skin is formed by cutting the inner metal copper skin of the screen, and the screen includes a straight screen or a curved screen.

作为本发明的一种实施例：所述悬浮铜皮还包括第一悬浮铜皮、第二悬浮铜皮和第三悬浮铜皮；其中，As an embodiment of the present invention: the suspended copper sheet further includes a first suspended copper sheet, a second suspended copper sheet and a third suspended copper sheet; wherein,

所述第一悬浮铜皮、第二悬浮铜皮和第三悬浮铜皮与同一个SAR 传感器连接；The first suspended copper sheet, the second suspended copper sheet and the third suspended copper sheet are connected to the same SAR sensor;

所述第一悬浮铜皮、第二悬浮铜皮和第三悬浮铜皮分别和不同的柔性线路板连接。The first suspended copper sheet, the second suspended copper sheet and the third suspended copper sheet are respectively connected to different flexible circuit boards.

作为本发明的一种实施例：所述柔性线路板包括第一柔性线路板、第二柔性线路板、第三柔性线路板和第四柔性线路板；As an embodiment of the present invention: the flexible circuit board includes a first flexible circuit board, a second flexible circuit board, a third flexible circuit board and a fourth flexible circuit board;

所述第一柔性线路板一端与所述第一悬浮铜皮通过第一连接器连接，其另一端连接PCB板；One end of the first flexible circuit board is connected to the first suspended copper sheet through a first connector, and the other end of the first flexible circuit board is connected to the PCB board;

所述第二柔性线路板与所述第二悬浮铜皮通过第二连接器连接，其另一端连接PCB板；the second flexible circuit board is connected with the second suspended copper sheet through a second connector, and the other end of the second flexible circuit board is connected to the PCB board;

所述第三柔性线路板与所述第三悬浮铜皮通过第三连接器连接，其另一端连接PCB板；The third flexible circuit board is connected to the third suspended copper sheet through a third connector, and the other end of the flexible circuit board is connected to the PCB board;

所述第四柔性线路板一端与所述屏幕悬浮铜皮连接，其另一端与所述中框框架连接。One end of the fourth flexible circuit board is connected to the screen suspension copper sheet, and the other end of the fourth flexible circuit board is connected to the middle frame.

作为本发明的一种实施例：所述悬浮铜皮的面积不低于50平方毫米。As an embodiment of the present invention: the area of the suspended copper skin is not less than 50 square millimeters.

一种基于屏下结构的手机多场景识别方法，包括：A mobile phone multi-scene recognition method based on an off-screen structure, comprising:

在外界物体与悬浮铜皮靠近时，SAR传感器获取悬浮铜皮的电荷变化信息；When the external object is close to the suspended copper sheet, the SAR sensor obtains the charge change information of the suspended copper sheet;

根据所述电容变化信息确定外界物体与所述悬浮铜皮的目标距离；Determine the target distance between the external object and the suspended copper skin according to the capacitance change information;

根据所述目标距离和预设场景距离模型进行场景识别。The scene recognition is performed according to the target distance and the preset scene distance model.

作为本发明的一种实施例：所述在外界物体与悬浮铜皮靠近时， SAR传感器获取悬浮铜皮的电荷变化信息，包括：As an embodiment of the present invention: when the external object is close to the suspended copper skin, the SAR sensor obtains the charge change information of the suspended copper skin, including:

在外界物体与悬浮铜皮靠近时，所述SAR传感器根据电磁场的变化，获取所述悬浮铜皮的电荷变化信息；其中，When an external object is close to the suspended copper sheet, the SAR sensor obtains the charge change information of the suspended copper sheet according to the change of the electromagnetic field; wherein,

所述电荷变化信息包括：The charge change information includes:

屏幕悬浮铜皮的屏幕电荷变化信息；The screen charge change information of the suspended copper sheet on the screen;

第一悬浮铜皮的第一电荷变化信息；The first charge change information of the first suspended copper sheet;

第二悬浮铜皮的第二电荷变化信息；The second charge change information of the second suspended copper sheet;

第三悬浮铜皮的第三电荷变化信息。The third charge change information of the third suspended copper sheet.

作为本发明的一种实施例：所述在外界物体与悬浮铜皮靠近时， SAR传感器获取悬浮铜皮的电荷变化信息，包括：As an embodiment of the present invention: when the external object is close to the suspended copper skin, the SAR sensor obtains the charge change information of the suspended copper skin, including:

所述SAR传感器获取所述第一电荷变化信息、第二电荷变化信息和第三电荷变化信息，确定所述第一悬浮铜皮的第一变化值，第二悬浮铜皮的第二变化值和第三悬浮铜皮的第三变化值；The SAR sensor acquires the first charge change information, the second charge change information and the third charge change information, and determines the first change value of the first suspended copper sheet, the second change value of the second suspended copper sheet and The third change value of the third suspended copper sheet;

对所述第一变化值、第二变化值和第三变化值进行排序，确定排序顺序；Sorting the first change value, the second change value and the third change value to determine a sorting order;

根据所述排序顺序确定外界物体与所述第一悬浮铜皮、第二悬浮铜皮和第三悬浮铜皮的第一距离顺序。A first order of distances between the external object and the first suspended copper skin, the second suspended copper skin and the third suspended copper skin is determined according to the sorting order.

作为本发明的一种实施例：所述根据所述电荷变化信息确定外界物体与所述悬浮铜皮的目标距离，包括：As an embodiment of the present invention: the determining the target distance between the external object and the suspended copper skin according to the charge change information includes:

根据所述屏幕悬浮铜皮6的屏幕电荷变化信息判断外界物体靠近的方向；Judging the approaching direction of the external object according to the screen charge change information of the screen suspension copper skin 6;

在外界物体靠近的方向确定后：After the direction of the approach of the external object is determined:

根据所述第一悬浮铜皮第一电荷变化信息，计算所述第一悬浮铜皮的第一电容增减值，根据所述第一电容增减值，通过预设算法确定所述第一悬浮铜皮与所述外界物体的第一距离值；Calculate the first capacitance increase/decrease value of the first suspension copper skin according to the first charge change information of the first suspension copper skin, and determine the first suspension value through a preset algorithm according to the first capacitance increase/decrease value a first distance value between the copper skin and the external object;

根据所述第二悬浮铜皮第二电荷变化信息，计算所述第二悬浮铜皮的第二电容增减值，根据所述第二电容增减值，通过预设算法确定所述第二悬浮铜皮与所述外界物体的第二距离值；Calculate the second capacitance increase/decrease value of the second suspension copper skin according to the second charge change information of the second suspension copper skin, and determine the second suspension value through a preset algorithm according to the second capacitance increase/decrease value a second distance value between the copper skin and the external object;

根据所述第三悬浮铜皮第三电荷变化信息，计算所述第三悬浮铜皮的第三电容增减值，根据所述第三电容增减值，通过预设算法确定所述第三悬浮铜皮与所述外界物体的第三距离值；Calculate the third capacitance increase/decrease value of the third suspension copper skin according to the third charge change information of the third suspension copper skin, and determine the third suspension value through a preset algorithm according to the third capacitance increase/decrease value the third distance value between the copper skin and the external object;

将所述第一距离值、第二距离值和第三距离值进行排序，确定第二距离顺序；Sorting the first distance value, the second distance value and the third distance value to determine the second distance order;

比较所述第一距离顺序和第二距离顺序；comparing the first distance order and the second distance order;

当所述第一距离顺序与第二距离顺序相同时，表示距离采集正确，选择所述第一距离值、第二距离值和第三距离值中最小的距离值作为场景识别距离值，并获取所述最小的距离值对应的悬浮铜皮；When the sequence of the first distance is the same as the sequence of the second distance, it means that the distance collection is correct, select the smallest distance value among the first distance value, the second distance value and the third distance value as the scene recognition distance value, and obtain The suspended copper skin corresponding to the minimum distance value;

当所述第一距离顺序与第二距离顺序不相同时，重新采集悬浮铜皮的电荷变化信息进行识别。When the first distance sequence is different from the second distance sequence, the charge change information of the suspended copper sheet is collected again for identification.

作为本发明的一种实施例：所述根据所述电荷变化信息确定外界物体与所述悬浮铜皮的目标距离，包括以下步骤：As an embodiment of the present invention, the determining of the target distance between the external object and the suspended copper skin according to the charge change information includes the following steps:

步骤1：获取第一悬浮铜皮的初始电荷量q10和实时检测电荷量 q1s、第二悬浮铜皮的初始电荷量q20和实时检测电荷量q2s；第三悬浮铜皮的初始电荷量q30和实时检测电荷量q3s；Step 1: Obtain the initial charge q 10 of the first suspended copper sheet and the real-time detection charge q 1s , the initial charge q 20 of the second suspended copper sheet and the real-time detection charge q 2s ; the initial charge of the third suspended copper sheet Quantity q 30 and real-time detection charge quantity q 3s ;

确定所述第一悬浮铜皮的电荷变化量Δq1＝q1s-q10；Determine the charge variation Δq 1 =q 1s −q 10 of the first suspended copper sheet;

确定所述第二悬浮铜皮的电荷变化量Δq2＝q2s-q20；Determine the charge variation of the second suspended copper sheet Δq 2 =q 2s -q 20 ;

确定所述第三悬浮铜皮的电荷变化量Δq3＝q3s-q30；Determine the charge variation of the third suspended copper sheet Δq 3 =q 3s -q 30 ;

其中，I表示所述第一悬浮铜皮(62)、第二悬浮铜皮(63)和第三悬浮铜皮(64)的电流值；Wherein, I represents the current value of the first suspended copper skin (62), the second suspended copper skin (63) and the third suspended copper skin (64);

步骤2：获取所述第一悬浮铜皮、第二悬浮铜皮和第三悬浮铜皮的电流值；获取所述第一悬浮铜皮的电阻值R1；所述第二悬浮铜皮的电阻值R2；所述第三悬浮铜皮的电阻值R3；Step 2: Obtain the current values of the first suspended copper skin, the second suspended copper skin and the third suspended copper skin; obtain the resistance value R 1 of the first suspended copper skin; the resistance of the second suspended copper skin value R 2 ; resistance value R 3 of the third suspended copper sheet;

根据所述第一悬浮铜皮的电荷变化量Δq1；所述第二悬浮铜皮的电荷变化量Δq2；所述第三悬浮铜皮的电荷变化量Δq3；According to the charge change amount Δq 1 of the first suspended copper skin; the charge change amount Δq 2 of the second suspended copper skin; the charge change amount Δq 3 of the third suspended copper skin;

分别确定所述第一悬浮铜皮的电容变化值

Figure BDA0002513864720000051
Determine the capacitance change value of the first suspended copper skin respectively
Figure BDA0002513864720000051

所述第二悬浮铜皮的电容变化值

Figure BDA0002513864720000052
The capacitance change value of the second suspended copper sheet
Figure BDA0002513864720000052

所述第三悬浮铜皮的电容变化值

Figure BDA0002513864720000053
The capacitance change value of the third suspended copper sheet
Figure BDA0002513864720000053

步骤3：根据所述第一悬浮铜皮的电容变化值C1，第二悬浮铜皮的电容变化值C2和第三悬浮铜皮的电容变化值C3；Step 3: According to the capacitance change value C 1 of the first suspended copper skin, the capacitance change value C 2 of the second floating copper skin and the capacitance change value C 3 of the third floating copper skin;

分别确定所述外界物体与所述第一悬浮铜皮的距离

Figure BDA0002513864720000061
Respectively determine the distance between the external object and the first suspended copper sheet
Figure BDA0002513864720000061

所述外界物体与所述第二悬浮铜皮的距离

Figure BDA0002513864720000062
The distance between the foreign object and the second suspended copper skin
Figure BDA0002513864720000062

所述外界物体与所述第三悬浮铜皮的距离

Figure BDA0002513864720000063
The distance between the external object and the third suspended copper skin
Figure BDA0002513864720000063

其中，所述

Figure BDA0002513864720000064
为介电常数；所述S1为第一悬浮铜皮62面积；所述 S2为第二悬浮铜皮63面积；所述S3为第三悬浮铜皮64面积；所述 logeS1表示以e为底的S1的指数；所述logeS2表示以e为底的S2的指数；所述logeS3表示以e为底的S3的指数；所述f为边缘效应因子，所述h为相邻悬浮铜皮之间的相邻常数。Among them, the
Figure BDA0002513864720000064
is the dielectric constant; the S 1 is the area of the first suspended copper sheet 62; the S 2 is the area of the second suspended copper sheet 63; the S 3 is the area of the third suspended copper sheet 64; the log e S 1 Represents the exponent of S 1 in base e; the log e S 2 represents the exponent of S 2 in base e; the log e S 3 represents the exponent of S 3 in base e; the f is the edge Effect factor, the h is the adjacent constant between adjacent suspended copper sheets.

本发明的有益效果在于：本方案充分利用屏下SAR传感器及对手机特殊的结构处理，利用屏幕上(直面屏和曲面屏)自带的铜皮部位进行方案解决。将铜皮分割成特殊大小及形状(根据手机设计情况而定)，利用该悬浮的铜皮来做为SAR传感器的悬浮片，当外界物体靠近手机，通过计算该铜皮上的电荷电量的变化来计算容值的变化，从而得到外界物体靠近手机的距离，实现多场景的识别。The beneficial effects of the present invention are as follows: the solution makes full use of the SAR sensor under the screen and the special structural treatment of the mobile phone, and uses the copper skin part on the screen (straight screen and curved screen) to solve the solution. The copper skin is divided into special sizes and shapes (depending on the design of the mobile phone), and the suspended copper skin is used as the suspension piece of the SAR sensor. To calculate the change of the capacitance value, so as to obtain the distance of the external object close to the mobile phone, and realize the recognition of multiple scenes.

本发明的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在所写的说明书以及附图中所特别指出的结构来实现和获得。Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.

下面通过附图和实施例，对本发明的技术方案做进一步的详细描述。The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.

附图说明Description of drawings

附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

图1为本发明实施例中一种屏下结构组成图；Fig. 1 is a kind of below-screen structure composition diagram in the embodiment of the present invention;

图2为本发明实施例中一种屏下结构的悬浮铜皮和PCB连接的示意图；2 is a schematic diagram of the connection between a suspended copper sheet and a PCB of an under-screen structure in an embodiment of the present invention;

图3为本发明实施例中左手握手机场景图；3 is a scene diagram of a left hand holding a mobile phone in an embodiment of the present invention;

图4为本发明实施例中一种示意右手握手机的场景图；FIG. 4 is a scene diagram illustrating a right hand holding a mobile phone in an embodiment of the present invention;

图5为本发明实施例中SAR传感器原理图。FIG. 5 is a schematic diagram of a SAR sensor in an embodiment of the present invention.

具体实施方式Detailed ways

以下结合附图对本发明的优选实施例进行说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明。The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, but not to limit the present invention.

实施例1：Example 1:

如附图1所示一种屏下结构组成图，一种屏下结构，包括柔性线路板、PCB板1、悬浮铜皮、SAR传感器和中框框架2，其中，As shown in FIG. 1, an under-screen structure composition diagram, an under-screen structure, includes a flexible circuit board, a PCB board 1, a suspended copper sheet, a SAR sensor and a middle frame frame 2, wherein,

所述柔性线路板、SAR传感器、PCB板和悬浮铜皮设置于所述中框框架2上；The flexible circuit board, the SAR sensor, the PCB board and the suspended copper skin are arranged on the middle frame frame 2;

所述柔性线路板一端与PCB板1连接，所述柔性线路板另一端和悬浮铜皮连接，所述悬浮铜皮分别与所述中框框架2和SAR传感器连接。One end of the flexible circuit board is connected to the PCB board 1, and the other end of the flexible circuit board is connected to a suspended copper sheet, and the suspended copper sheet is respectively connected to the middle frame frame 2 and the SAR sensor.

本发明的原理在于：本发明通过对屏下SAR传感器及对手机特殊的结构处理，实现多场景的识别。所述SAR传感器的结构如图5所示，通过对手机的SAR传感器和屏幕上自带的铜皮部位进行处理，使得悬浮铜皮可以在外界物体接近时的电容发生变化最多有五个输入口，分别连接本发明中的悬浮铜皮。通过在中框框架2上设置通孔5连接悬浮铜皮、柔性线路板和SAR传感器使得SAR传感器感应电容的变化。 SAR传感器通过外界物体对SAR传感器的感应片的靠近或者远离产生的感应电容变化，来换算成外界物体的靠近距离。The principle of the present invention is: the present invention realizes multi-scene recognition by processing the SAR sensor under the screen and the special structure of the mobile phone. The structure of the SAR sensor is shown in Figure 5. By processing the SAR sensor of the mobile phone and the copper skin part on the screen, the capacitance of the suspended copper skin can change when an external object approaches. There are up to five input ports. , respectively connect the suspended copper sheets in the present invention. By arranging through holes 5 on the middle frame frame 2 to connect the suspended copper sheet, the flexible circuit board and the SAR sensor, the SAR sensor can sense changes in capacitance. The SAR sensor converts the proximity distance of the external object into the change of the inductive capacitance generated by the approach or distance of the sensor sheet of the SAR sensor from the external object.

外界物体和该感应片的距离变化，产生了电磁场的变化，从而导致感应片上电荷量的变化，电荷量的变化导致SAR传感器本身的电容负载值变化，从电容值的变化中，我们可以计算出外界物体同该感应片的距离，从而实现多场景识别。The change in the distance between the external object and the sensor chip produces a change in the electromagnetic field, which leads to a change in the amount of charge on the sensor chip. The change in the charge amount causes the change in the capacitance load value of the SAR sensor itself. From the change in the capacitance value, we can calculate The distance between the external object and the sensor sheet can realize multi-scene recognition.

本发明的有益效果在于：本方案充分利用屏下SAR传感器及对手机特殊的结构处理，利用屏幕上(直面屏和曲面屏)自带的铜皮部位进行方案解决。将铜皮分割成特殊大小及形状(根据手机设计情况而定)，利用该悬浮的铜皮来做为SAR sensor的悬浮片，当外界物体靠近手机，通过计算该铜皮上的电荷电量的变化来计算容值的变化，从而得到外界物体靠近手机的距离，实现多场景的识别。The beneficial effects of the present invention are as follows: the solution makes full use of the SAR sensor under the screen and the special structural treatment of the mobile phone, and uses the copper skin part on the screen (straight screen and curved screen) to solve the solution. The copper skin is divided into special sizes and shapes (depending on the design of the mobile phone), and the suspended copper skin is used as the suspension piece of the SAR sensor. To calculate the change of the capacitance value, so as to obtain the distance of the external object close to the mobile phone, and realize the recognition of multiple scenes.

实施例2：Example 2:

作为本发明的一种实施例：如附图2所示，所述悬浮铜皮包括屏幕悬浮铜皮6和屏侧悬浮铜皮61；其中，As an embodiment of the present invention: as shown in FIG. 2 , the suspended copper sheet includes a screen suspended copper sheet 6 and a screen side suspended copper sheet 61; wherein,

所述屏幕悬浮铜皮6和屏侧悬浮铜皮61分别与所述SAR传感器连接；The screen suspension copper skin 6 and the screen side suspension copper skin 61 are respectively connected to the SAR sensor;

所述悬浮铜皮由屏幕的内层金属铜皮4切割形成，所述屏幕包括直面屏或曲面屏。The suspended copper skin is formed by cutting the inner metal copper skin 4 of the screen, and the screen includes a straight screen or a curved screen.

本发明的原理在于：屏幕悬浮铜皮6用于感应屏幕的电容变化；屏侧悬浮铜皮61用于感应屏侧的电容变化。屏幕悬浮铜皮6和屏侧悬浮铜皮61是第一个判断外界物体靠近的悬浮通皮，但是因为屏幕悬浮铜皮6在手机中心，屏侧悬浮铜皮61在手机侧面，只有一个的话，相对来说距离的测量结果并不特别精确，屏侧悬浮铜皮61为多个距离确定一个点，测量结果是精确的。The principle of the present invention is as follows: the screen suspending copper skin 6 is used for sensing the capacitance change of the screen; the screen side suspending copper skin 61 is used for sensing the capacitance change on the screen side. The screen suspension copper sheet 6 and the screen side suspension copper sheet 61 are the first suspension skins to judge the approach of external objects, but because the screen suspension copper sheet 6 is in the center of the phone, and the screen side suspension copper sheet 61 is on the side of the phone, if there is only one, Relatively speaking, the measurement result of distance is not particularly accurate. The suspended copper sheet 61 on the screen side determines a point for multiple distances, and the measurement result is accurate.

本发明的有益效果在于：本发明能够在外界物体接触时，电荷的变化状态，进而确定第一个距离结果。直接通过屏幕的侧边内层铜皮 4仅从原手机内部进行加工，节约了成本，是对原来具备的结构进行功能上的扩展。The beneficial effect of the present invention is that the present invention can determine the first distance result by changing the state of electric charge when the external object is in contact. Directly through the side inner layer of the screen 4 is only processed from the inside of the original mobile phone, which saves the cost and expands the function of the original structure.

实施例3：Example 3:

作为本发明的一种实施例：所述屏侧悬浮铜皮61还包括第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64；其中，As an embodiment of the present invention: the screen side suspended copper skin 61 further includes a first suspended copper skin 62, a second suspended copper skin 63 and a third suspended copper skin 64; wherein,

所述第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64与同一个SAR传感器连接；The first suspended copper skin 62, the second suspended copper skin 63 and the third suspended copper skin 64 are connected to the same SAR sensor;

所述第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮(64) 分别和不同的柔性线路板连接。The first suspended copper sheet 62, the second suspended copper sheet 63 and the third suspended copper sheet (64) are respectively connected to different flexible circuit boards.

本发明的原理和有益效果在于：通过屏幕侧边设置第一悬浮铜皮 62、第二悬浮铜皮63和第三悬浮铜皮64，进而可以确定在外界物体接触时，感应第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64 中电荷变化，进而可以确定外界物体与本发明的悬浮铜皮靠近的第二个距离结果，第二个距离结果因为是三个悬浮通篇共同的距离结果进行判断，确定的距离结果比较精确。The principle and beneficial effects of the present invention are as follows: the first suspended copper skin 62, the second suspended copper skin 63 and the third suspended copper skin 64 are arranged on the side of the screen, and then it can be determined that the first suspended copper skin is sensed when the external object contacts 62. The charge changes in the second suspended copper skin 63 and the third suspended copper skin 64, and then the second distance result of the proximity of the external object to the suspended copper skin of the present invention can be determined. The common distance results are judged, and the determined distance results are more accurate.

实施例4：Example 4:

作为本发明的一种实施例：所述柔性线路板包括第一柔性线路板 31、第二柔性线路板32、第三柔性线路板33、第四柔性线路板34As an embodiment of the present invention: the flexible circuit board includes a first flexible circuit board 31, a second flexible circuit board 32, a third flexible circuit board 33, and a fourth flexible circuit board 34.

所述第一柔性线路板31一端与所述第一悬浮铜皮62通过第一连接器连接，其另一端连接PCB板1；用于将第一悬浮铜皮62的电容变化传输给SAR传感器。One end of the first flexible circuit board 31 is connected to the first suspended copper sheet 62 through a first connector, and the other end of the first flexible circuit board 31 is connected to the PCB board 1; it is used to transmit the capacitance change of the first suspended copper sheet 62 to the SAR sensor.

所述第二柔性线路板32与所述第二悬浮铜皮63通过第二连接器连接，其另一端也连接PCB板1；用于将第二悬浮铜皮63的电容变化传输给SAR传感器。The second flexible circuit board 32 is connected to the second suspended copper sheet 63 through a second connector, and the other end thereof is also connected to the PCB board 1; it is used to transmit the capacitance change of the second suspended copper sheet 63 to the SAR sensor.

所述第三柔性线路板33与所述第三悬浮铜皮64通过第三连接器连接，其另一端页连接PCB板1；用于将第三悬浮铜皮64的电容变化传输给SAR传感器。The third flexible circuit board 33 is connected to the third suspended copper sheet 64 through a third connector, and the other end of the flexible circuit board 33 is connected to the PCB board 1; it is used to transmit the capacitance change of the third suspended copper sheet 64 to the SAR sensor.

所述第四柔性线路板34一端与所述屏幕悬浮铜皮6连接，其另一端与所述中框框架2连接；用于将屏幕悬浮铜皮6的电容变化传输给SAR传感器。One end of the fourth flexible circuit board 34 is connected to the screen suspension copper sheet 6 , and the other end of the fourth flexible circuit board 34 is connected to the middle frame frame 2 ; it is used to transmit the capacitance change of the screen suspension copper sheet 6 to the SAR sensor.

基于PCB板1处理得到第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64电容变化的数据。Based on the processing of the PCB board 1, the data of the capacitance changes of the first suspended copper skin 62, the second suspended copper skin 63 and the third suspended copper skin 64 are obtained.

有益效果在于：使得数据传输都通过柔性线路板进行直连传输，加快反应速度。The beneficial effect is that the data transmission is directly connected and transmitted through the flexible circuit board, and the response speed is accelerated.

实施例5：Example 5:

作为本发明的一种实施例：所述悬浮铜皮的面积不低于50平方毫米。大于50平方毫米电荷的量较大，电荷变化时，变化比较显著，不容易发生误判。As an embodiment of the present invention: the area of the suspended copper skin is not less than 50 square millimeters. The amount of charge greater than 50 square millimeters is large, and when the charge changes, the change is more significant, and misjudgment is not easy to occur.

实施例6：Example 6:

一种基于屏下结构的手机多场景识别方法，包括：A mobile phone multi-scene recognition method based on an off-screen structure, comprising:

在外界物体与悬浮铜皮靠近时，SAR传感器获取悬浮铜皮的电荷变化信息；When the external object is close to the suspended copper sheet, the SAR sensor obtains the charge change information of the suspended copper sheet;

根据所述电荷变化信息确定外界物体与所述悬浮铜皮的目标距离；Determine the target distance between the external object and the suspended copper skin according to the charge change information;

根据所述目标距离和预设场景距离模型进行场景识别。The scene recognition is performed according to the target distance and the preset scene distance model.

本发明的原理在于：SAR传感器通过外界物体对SAR传感器的感应片，即悬浮铜皮的靠近或者远离产生的感应电容变化，来换算成外界物体的靠近距离。The principle of the invention is that the SAR sensor converts the proximity distance of the external object into the proximity distance of the external object through the change of the inductive capacitance caused by the proximity or distance of the floating copper sheet to the SAR sensor of the external object.

SAR传感器的感应片是一种悬浮的大面积的金属片，面积最少约为50平方毫米。The sensing sheet of the SAR sensor is a suspended large-area metal sheet with a minimum area of about 50 square millimeters.

外界物体和该SAR传感器的感应片的距离发生变化时，产生了电磁场的变化，从而导致感应片上电荷量的变化，电荷量的变化导致 SAR传感器本身的电容负载值变化，从电容值的变化中，我们可以计算出外界物体同该SAR传感器的感应片的距离，从而实现多场景识别。When the distance between the external object and the sensing chip of the SAR sensor changes, the electromagnetic field changes, which leads to the change of the charge on the sensing chip. The change of the charge causes the capacitance load value of the SAR sensor itself to change. From the change of the capacitance value , we can calculate the distance between the external object and the sensing piece of the SAR sensor, so as to realize multi-scene recognition.

本发明的有益效果在于：本方案充分利用屏下SAR传感器及对手机特殊的结构处理，利用屏幕上(直面屏和曲面屏)自带的铜皮部位进行方案解决。将铜皮分割成特殊大小及形状(根据手机设计情况而定)，利用该悬浮的铜皮来做为SAR传感器的悬浮片；即感应片，当外界物体靠近手机，通过计算该铜皮上的电荷电量的变化来计算容值的变化，从而得到外界物体靠近手机的距离。实现多场景的识别。The beneficial effects of the present invention are as follows: the solution makes full use of the SAR sensor under the screen and the special structural treatment of the mobile phone, and uses the copper skin part on the screen (straight screen and curved screen) to solve the solution. The copper skin is divided into special sizes and shapes (depending on the design of the mobile phone), and the suspended copper skin is used as the suspension piece of the SAR sensor; that is, the sensing piece, when the external object is close to the mobile phone, by calculating the The change of the charge quantity is used to calculate the change of the capacitance value, so as to obtain the distance between the external object and the mobile phone. Realize multi-scene recognition.

实施例7：Example 7:

作为本发明的一种实施例：所述在外界物体与悬浮铜皮靠近时， SAR传感器获取悬浮铜皮的电荷变化信息，包括：As an embodiment of the present invention: when the external object is close to the suspended copper skin, the SAR sensor obtains the charge change information of the suspended copper skin, including:

在外界物体与悬浮铜皮靠近时，所述SAR传感器根据电磁场的变化，获取所述悬浮铜皮的电荷变化信息；其中，When an external object is close to the suspended copper sheet, the SAR sensor obtains the charge change information of the suspended copper sheet according to the change of the electromagnetic field; wherein,

所述电荷变化信息包括：The charge change information includes:

屏幕悬浮铜皮6的屏幕电荷变化信息；The screen charge change information of the screen suspended copper skin 6;

第一悬浮铜皮62的第一电荷变化信息；The first charge change information of the first suspended copper skin 62;

第二悬浮铜皮63的第二电荷变化信息；The second charge change information of the second suspended copper skin 63;

第三悬浮铜皮64的第三电荷变化信息。The third charge change information of the third suspended copper sheet 64 .

本发明的有益效果在于：通过幕电荷变化信息和屏侧电荷变化信息可以判断外界物体靠近的方向。通过第一电荷变化信息、第二电荷变化信息和第二电荷变化信息进而可以得到第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64的电容变化值，悬浮铜皮因为电磁场的作用对于电荷的变化比较敏感。The beneficial effect of the present invention is that the approaching direction of the external object can be judged through the screen charge change information and the screen side charge change information. Through the first charge change information, the second charge change information and the second charge change information, the capacitance change values of the first suspended copper skin 62, the second suspended copper skin 63 and the third suspended copper skin 64 can be obtained. The floating copper skin is because The effect of electromagnetic fields is sensitive to changes in electric charge.

实施例8：Example 8:

作为本发明的一种实施例：所述在外界物体与悬浮铜皮靠近时， SAR传感器获取悬浮铜皮的电荷变化信息，包括：As an embodiment of the present invention: when the external object is close to the suspended copper skin, the SAR sensor obtains the charge change information of the suspended copper skin, including:

所述SAR传感器获取所述第一电荷变化信息、第二电荷变化信息和第三电荷变化信息，确定所述第一悬浮铜皮62的第一变化值，第二悬浮铜皮63的第二变化值和第三悬浮铜皮64的第三变化值；The SAR sensor acquires the first charge change information, the second charge change information and the third charge change information, and determines the first change value of the first suspended copper skin 62 and the second change of the second suspended copper skin 63 value and the third change value of the third suspended copper skin 64;

对所述第一变化值、第二变化值和第三变化值进行排序，确定排序顺序；Sorting the first change value, the second change value and the third change value to determine a sorting order;

根据所述排序顺序确定外界物体与所述第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮63的第一距离顺序。The first order of distances between the external object and the first suspended copper skin 62 , the second suspended copper skin 63 and the third suspended copper skin 63 is determined according to the sorting order.

本发明的原理和有益效果在于：通过将电荷的变化信息进行转化，以变化值的形式进行表示，变化值得形式可以比较大小，进而可以通过排序对外界物体与悬浮铜皮得距离座第一次排序，进而通过第一次排序得距离按照顺序可以检验在计算后得到的距离的正确率。The principle and beneficial effects of the present invention are as follows: by transforming the change information of the charge and expressing it in the form of a change value, the change value form can be compared in size, and then the distance between the external object and the suspended copper sheet can be sorted for the first time. Sorting, and then by first sorting the distances in order, the correctness of the distances obtained after the calculation can be checked.

实施例9：Example 9:

作为本发明的一种实施例：所述根据所述电荷变化信息确定外界物体与所述悬浮铜皮的目标距离，包括：As an embodiment of the present invention: the determining the target distance between the external object and the suspended copper skin according to the charge change information includes:

根据所述屏幕悬浮铜皮6的屏幕电荷变化信息判断外界物体靠近的方向；Judging the approaching direction of the external object according to the screen charge change information of the screen suspension copper skin 6;

在外界物体靠近的方向确定后：After the direction of the approach of the external object is determined:

根据所述屏幕悬浮铜皮6的屏幕电荷变化信息和屏侧悬浮铜皮 61的屏侧电荷变化信息判断外界物体靠近的方向；According to the screen charge variation information of the screen suspension copper sheet 6 and the screen side charge variation information of the screen side suspension copper sheet 61, judge the direction of the approach of the external object;

在外界物体靠近的方向确定后：After the direction of the approach of the external object is determined:

根据所述第一悬浮铜皮62第一电荷变化信息，计算所述第一悬浮铜皮62的第一电容增减值，根据所述第一电容增减值，通过预设算法确定所述第一悬浮铜皮62与所述外界物体的第一距离值；Calculate the first capacitance increase or decrease value of the first suspended copper skin 62 according to the first charge change information of the first suspended copper skin 62, and determine the first capacitance increase or decrease value through a preset algorithm according to the first capacitance increase or decrease value. A first distance value between the suspended copper skin 62 and the external object;

根据所述第二悬浮铜皮63的第二电荷变化信息，计算所述第二悬浮铜皮63的第二电容增减值，根据所述第二电容增减值，通过预设算法确定所述第二悬浮铜皮63与所述外界物体的第二距离值；Calculate the second capacitance increase/decrease value of the second suspension copper skin 63 according to the second charge change information of the second suspension copper skin 63, and determine the The second distance value between the second suspended copper skin 63 and the external object;

根据所述第三悬浮铜皮64的第三电荷变化信息，计算所述第三悬浮铜皮64的第三电容增减值，根据所述第三电容增减值，通过预设算法确定所述第三悬浮铜皮64与所述外界物体的第三距离值；Calculate the third capacitance increase/decrease value of the third suspension copper skin 64 according to the third charge change information of the third suspension copper skin 64, and determine the The third distance value between the third suspended copper skin 64 and the external object;

将所述第一距离值、第二距离值和第三距离值进行排序，确定第二距离顺序；Sorting the first distance value, the second distance value and the third distance value to determine the second distance order;

比较所述第一距离顺序和第二距离顺序；comparing the first distance order and the second distance order;

当所述第一距离顺序与第二距离顺序相同时，表示距离采集正确，选择所述第一距离值、第二距离值和第三距离值中最小的距离值作为场景识别距离值，并获取所述最小的距离值对应的悬浮铜皮；When the sequence of the first distance is the same as the sequence of the second distance, it means that the distance collection is correct, select the smallest distance value among the first distance value, the second distance value and the third distance value as the scene recognition distance value, and obtain The suspended copper skin corresponding to the minimum distance value;

当所述第一距离顺序与第二距离顺序不相同时，重新采集悬浮铜皮的电荷变化信息进行识别。When the first distance sequence is different from the second distance sequence, the charge change information of the suspended copper sheet is collected again for identification.

本发明的有益效果在于：在方向确定之后，第一距离值和第二距离值对应的悬浮铜皮的距离排序顺序应该是相同的。可以通过第一距离值和第二距离值对本发明中的最终结果进行检验。最终获取的距离必定是最小的距离，最小的距离代表最接近，进而可以识别是通过什么场景进行打电话或者操作手机，进而改变打开天线的方向。The beneficial effect of the present invention is that: after the direction is determined, the distance sorting order of the suspended copper sheets corresponding to the first distance value and the second distance value should be the same. The final result in the present invention can be checked by the first distance value and the second distance value. The final obtained distance must be the smallest distance, and the smallest distance represents the closest distance, and then it can identify the scene through which a call is made or the mobile phone is operated, and then the direction of opening the antenna can be changed.

实施例10：Example 10:

作为本发明的一种实施例:所述根据所述电荷变化信息确定外界物体与所述悬浮铜皮的目标距离，包括以下步骤：As an embodiment of the present invention: the described determination of the target distance between the external object and the suspended copper skin according to the charge change information, comprises the following steps:

步骤1：获取第一悬浮铜皮62的初始电荷量q10和实时检测电荷量q1s、第二悬浮铜皮63的初始电荷量q20和实时检测电荷量q2s；第三悬浮铜皮64的初始电荷量q30和实时检测电荷量q3s；Step 1: Obtain the initial charge amount q 10 and real-time detection charge amount q 1s of the first suspended copper sheet 62 , the initial charge amount q 20 and real-time detection charge amount q 2s of the second suspended copper sheet 63 ; the third suspended copper sheet 64 The initial charge amount q 30 and the real-time detection charge amount q 3s ;

确定所述第一悬浮铜皮62的电荷变化量Δq1＝q1s-q10；Determine the charge variation Δq 1 =q 1s −q 10 of the first suspended copper sheet 62 ;

确定所述第二悬浮铜皮63的电荷变化量Δq2＝q2s-q20；Determine the charge variation Δq 2 =q 2s −q 20 of the second suspended copper sheet 63 ;

确定所述第三悬浮铜皮64的电荷变化量Δq3＝q3s-q30；Determine the charge variation Δq 3 =q 3s −q 30 of the third suspended copper sheet 64 ;

步骤2：获取所述第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64的电流值；获取所述第一悬浮铜皮62的电阻值R1；所述第二悬浮铜皮63的电阻值R2；所述第三悬浮铜皮64的电阻值R3；Step 2: obtain the current values of the first suspended copper skin 62, the second suspended copper skin 63 and the third suspended copper skin 64; obtain the resistance value R 1 of the first suspended copper skin 62; the second suspended copper skin 62 The resistance value R 2 of the copper skin 63 ; the resistance value R 3 of the third suspended copper skin 64 ;

根据所述第一悬浮铜皮62的电荷变化量Δq1；所述第二悬浮铜皮 63的电荷变化量Δq2；所述第三悬浮铜皮64的电荷变化量Δq3；According to the charge variation Δq 1 of the first suspended copper sheet 62 ; the charge variation Δq 2 of the second suspended copper sheet 63 ; the charge variation Δq 3 of the third suspended copper sheet 64 ;

分别确定所述第一悬浮铜皮62的电容变化值

Figure BDA0002513864720000141
Determine the capacitance change value of the first suspended copper skin 62 respectively
Figure BDA0002513864720000141

所述第二悬浮铜皮63的电容变化值

Figure BDA0002513864720000142
The capacitance change value of the second suspended copper skin 63
Figure BDA0002513864720000142

所述第三悬浮铜皮64的电容变化值

Figure BDA0002513864720000143
The capacitance change value of the third suspended copper skin 64
Figure BDA0002513864720000143

其中，I表示所述第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64的电流值；Wherein, I represents the current value of the first suspended copper skin 62, the second suspended copper skin 63 and the third suspended copper skin 64;

步骤3：根据所述第一悬浮铜皮62的电容变化值C1，第二悬浮铜皮63的电容变化值C2和第三悬浮铜皮64的电容变化值C3；Step 3: According to the capacitance change value C 1 of the first suspension copper skin 62 , the capacitance change value C 2 of the second suspension copper skin 63 and the capacitance change value C 3 of the third suspension copper skin 64 ;

分别确定所述外界物体与所述第一悬浮铜皮62的距离

Figure BDA0002513864720000151
Respectively determine the distance between the external object and the first suspended copper skin 62
Figure BDA0002513864720000151

所述外界物体与所述第二悬浮铜皮63的距离

Figure BDA0002513864720000152
The distance between the external object and the second suspended copper skin 63
Figure BDA0002513864720000152

所述外界物体与所述第三悬浮铜皮64的距离

Figure BDA0002513864720000153
The distance between the external object and the third suspended copper skin 64
Figure BDA0002513864720000153

其中，所述

Figure BDA0002513864720000154
为介电常数；所述S1为第一悬浮铜皮62面积；所述 S2为第二悬浮铜皮63面积；所述S3为第三悬浮铜皮64面积；所述 logeS1表示以e为底的S1的指数；所述logeS2表示以e为底的S2的指数；所述logeS3表示以e为底的S3的指数；所述f为边缘效应因子，所述h为相邻悬浮铜皮之间的相邻常数。Among them, the
Figure BDA0002513864720000154
is the dielectric constant; the S 1 is the area of the first suspended copper sheet 62; the S 2 is the area of the second suspended copper sheet 63; the S 3 is the area of the third suspended copper sheet 64; the log e S 1 Represents the exponent of S 1 in base e; the log e S 2 represents the exponent of S 2 in base e; the log e S 3 represents the exponent of S 3 in base e; the f is the edge Effect factor, the h is the adjacent constant between adjacent suspended copper sheets.

本发明通过分别获取获取第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64的初始电荷和实时电荷，可以确定电荷的变化量，进而通过电荷的变化量得到第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64电容的变化量；最后通过电容和距离的计算公式得到外界物体与第一悬浮铜皮62、第二悬浮铜皮63和第三悬浮铜皮64 的目标距离，通过目标距离可以进行场景识别。In the present invention, the initial charge and real-time charge of the first suspended copper skin 62, the second suspended copper skin 63 and the third suspended copper skin 64 can be obtained respectively, so that the change amount of the charge can be determined, and then the first floating copper skin can be obtained by the change amount of the charge. The capacitance changes of the copper skin 62 , the second suspended copper skin 63 and the third suspended copper skin 64 The target distance of the suspended copper skin 64 can be used for scene recognition through the target distance.

在一个实施例中，通过天线SAR检测及头手等多情景检测应用 SAR测试时手机摆放的六个方向，以屏幕幕为基准包括屏幕朝下、屏幕朝上、屏幕朝右，屏幕朝左、屏幕朝前和屏幕朝后等，分别确定各方向下，距离情况。我们可以利用该专利来解决侧边框曲面屏幕及环绕屏幕SAR检测问题，从而通过场景识别来降低功率值来满足SAR 需求，而不是通过直接阉割功率值来满足SAR传感器，影响用户体验。In one embodiment, the six directions in which the mobile phone is placed during the SAR test using multi-scenario detection such as antenna SAR detection and head-hand detection are based on the screen screen, including the screen facing down, the screen facing up, the screen facing right, and the screen facing left. , the screen is facing forward and the screen is facing back, etc., to determine the direction and distance of each side respectively. We can use this patent to solve the problem of SAR detection of side-frame curved screens and surround screens, so as to reduce the power value to meet the SAR requirements through scene recognition, rather than directly castrate the power value to meet the SAR sensor, which affects the user experience.

在一个实施例中，头手测试模式的检测：In one embodiment, the detection of the head-hand test pattern:

如附图3和附图4所示，握手机方式，该方案可帮助识别左侧头部用手握住手机，还是右侧头部用手握住手机，即左侧接电话场景和右侧接电话场景。通过识别手机的握持状态，我们可以通过手机内部开关来实现天线的对应切换。如右手握住时，我们调整为左侧天线发射，左手握住时，我们调整为右侧天线发射。As shown in Figures 3 and 4, the way of holding the phone, this solution can help identify whether the left side of the head holds the phone with the hand, or the right side of the head holds the phone with the hand, that is, the left side is answering the phone and the right side is holding the phone. Answering the phone scene. By identifying the holding state of the mobile phone, we can realize the corresponding switching of the antenna through the internal switch of the mobile phone. For example, when holding it with the right hand, we adjust it to transmit from the left antenna, and when holding it with the left hand, we adjust it to transmit from the right antenna.

显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims (10)

1. The under-screen structure is characterized by comprising a flexible circuit board, a PCB (printed circuit board) (1), a suspension copper sheet, an SAR sensor and a middle frame (2), wherein,
the flexible circuit board, the SAR sensor, the PCB and the suspended copper sheet are arranged on the middle frame (2);
one end of the flexible circuit board is connected with the PCB (1), the other end of the flexible circuit board is connected with the suspension copper sheet, and the suspension copper sheet is connected with the middle frame (2) and the SAR sensor respectively.
2. An under-screen structure according to claim 1, wherein the suspended copper sheets comprise a screen suspended copper sheet (6) arranged at the center of the screen and a screen side suspended copper sheet (61) arranged at the screen side; wherein,
the screen suspension copper sheet (6) and the screen side suspension copper sheet are respectively connected with the SAR sensor;
the screen is characterized in that the screen suspension copper sheet (6) and the screen side suspension copper sheet (61) are formed by cutting an inner layer metal copper sheet (4) of the screen, and the screen comprises a straight screen or a curved screen.
3. An under-screen structure according to claim 2, wherein the screen-side suspended copper skin (61) comprises a first suspended copper skin (62), a second suspended copper skin (63) and a third suspended copper skin (64); wherein,
the first suspended copper sheet (62), the second suspended copper sheet (63) and the third suspended copper sheet (64) are all connected with the SAR sensor;
the first suspension copper sheet (62), the second suspension copper sheet (63) and the third suspension copper sheet (64) are respectively connected with different flexible circuit boards.
4. An underscreen structure according to claim 3, characterized in that said flexible circuit boards comprise a first flexible circuit board (31), a second flexible circuit board (32), a third flexible circuit board (33) and a fourth flexible circuit board (34);
one end of the first flexible circuit board (31) is connected with the first suspension copper sheet (62) through a first connector, and the other end is connected with the PCB (1)
The second flexible circuit board (32) is connected with the second suspension copper sheet (63) through a second connector, and the other end of the second flexible circuit board is connected with the PCB (1);
the third flexible circuit board (33) is connected with the third suspension copper sheet (64) through a third connector, and the other end of the third flexible circuit board is connected with the PCB (1)
One end of the fourth flexible circuit board (34) is connected with the screen suspension copper sheet (6), and the other end of the fourth flexible circuit board is connected with the middle frame (2).
5. An underscreen structure according to claim 1, wherein the suspended copper skin has an area not less than 50 square millimeters.
6. A mobile phone multi-scene recognition method based on an off-screen structure, which adopts the off-screen structure of any one of claims 1-5, and is characterized by comprising the following steps:
when an external object is close to the suspended copper sheet, the SAR sensor acquires charge change information of the suspended copper sheet;
determining the target distance between an external object and the suspended copper sheet according to the charge change information;
and carrying out scene recognition according to the target distance and a preset scene distance model.
7. The method for identifying multiple scenes of a mobile phone according to claim 6, wherein when an external object approaches the floating copper sheet, the SAR sensor obtains the charge change information of the floating copper sheet, and the method comprises the following steps:
when an external object is close to the suspended copper sheet, the SAR sensor acquires charge change information of the suspended copper sheet according to the change of an electromagnetic field; wherein,
the charge change information includes:
screen charge change information of the screen suspension copper sheet (6);
first charge change information of the first suspended copper skin (62);
second charge change information of the second suspended copper sheet (63);
third charge change information of a third suspended copper skin (64).
8. The method for identifying multiple scenes of a mobile phone according to claim 7, wherein when an external object approaches the floating copper sheet, the SAR sensor obtains charge change information of the floating copper sheet, and further comprising:
the SAR sensor acquires the first charge change information, the second charge change information and the third charge change information, and determines a first change value of the first suspended copper sheet (62), a second change value of the second suspended copper sheet (63) and a third change value of the third suspended copper sheet (64);
sequencing the first variation value, the second variation value and the third variation value to determine a sequencing order;
and determining a first distance sequence between the external object and the first suspended copper sheet (62), the second suspended copper sheet (63) and the third suspended copper sheet (63) according to the sequencing sequence.
9. The method for identifying multiple scenes of a mobile phone according to claim 8, wherein the determining the target distance between the external object and the floating copper sheet according to the charge variation information comprises:
judging the approaching direction of an external object according to the screen charge change information of the screen suspension copper sheet (6);
after the direction of the approach of the external object is determined:
calculating a first capacitance increasing and decreasing value of the first suspended copper sheet (62) according to first charge change information of the first suspended copper sheet (62), and determining a first distance value between the first suspended copper sheet (62) and the external object through a preset algorithm according to the first capacitance increasing and decreasing value;
calculating a second capacitance increasing and decreasing value of the second suspended copper sheet (63) according to second charge change information of the second suspended copper sheet (63), and determining a second distance value between the second suspended copper sheet (63) and the external object through a preset algorithm according to the second capacitance increasing and decreasing value;
calculating a third capacitance increasing and decreasing value of the third suspended copper sheet (64) according to the change information of the third charge of the third suspended copper sheet (64), and determining a third distance value between the third suspended copper sheet (64) and the external object through a preset algorithm according to the third capacitance increasing and decreasing value;
sequencing the first distance value, the second distance value and the third distance value to determine a second distance sequence;
comparing the first distance order and the second distance order;
when the first distance sequence is the same as the second distance sequence, indicating that the distance acquisition is correct, selecting the minimum distance value of the first distance value, the second distance value and the third distance value as a scene identification distance value, and acquiring the suspended copper sheet corresponding to the minimum distance value;
and when the first distance sequence is different from the second distance sequence, the charge change information of the suspended copper sheet is collected again for identification.
10. The mobile phone multi-scene recognition method based on the under-screen structure, according to the claim 6, is characterized in that the determining of the target distance between the external object and the suspended copper sheet according to the charge change information comprises the following steps:
step 1: obtaining an initial charge q of the first suspended copper sheet (62)10And real-time inspectionMeasuring the quantity of electric charge q1sThe initial charge q of the second suspended copper sheet (63)20And detecting the amount of charge q in real time2s(ii) a Initial charge q of the third suspended copper sheet (64)30And detecting the amount of charge q in real time3s；
Determining a charge variation Δ q of the first suspended copper skin (62)1＝q1s-q10；
Determining the charge variation Deltaq of the second suspended copper skin (63)2＝q2s-q20；
Determining the charge variation Deltaq of the third suspended copper skin (64)3＝q3s-q30；
Step 2: obtaining current values of the first suspended copper sheet (62), the second suspended copper sheet (63) and the third suspended copper sheet (64); obtaining the resistance value R of the first suspended copper sheet (62)1(ii) a The resistance value R of the second suspended copper sheet (63)2(ii) a The resistance value R of the third suspended copper sheet (64)3；
According to the charge variation quantity delta q of the first suspended copper sheet (62)1(ii) a The charge variation delta q of the second suspended copper sheet (63)2(ii) a The charge variation delta q of the third suspended copper sheet (64)3；
Respectively determining the capacitance variation value of the first suspended copper sheet (62)
Figure FDA0002513864710000051
The capacitance change value of the second suspended copper sheet (63)
Figure FDA0002513864710000052
The capacitance change value of the third suspended copper sheet (64)
Figure FDA0002513864710000053
Wherein I represents the current value of the first suspended copper sheet (62), the second suspended copper sheet (63) and the third suspended copper sheet (64);
step (ii) of3, according to the capacitance change value C of the first suspended copper sheet (62)1The capacitance variation value C of the second suspended copper sheet (63)2And the capacitance variation value C of the third suspended copper sheet (64)3；
Respectively determining the distance between the external object and the first suspended copper sheet (62)
Figure FDA0002513864710000054
The distance between the external object and the second suspended copper sheet (63)
Figure FDA0002513864710000055
The distance between the external object and the third suspended copper sheet (64)
Figure FDA0002513864710000061
Wherein, the
Figure FDA0002513864710000062
Is the dielectric constant; said S1Is the area of the first suspended copper sheet (62); said S2The area of the second suspended copper sheet (63); said S3Is the area of the third suspended copper sheet (64); log of saideS1Denotes S with e as base1The index of (1); log of saideS2Denotes S with e as base2The index of (1); log of saideS3Denotes S with e as base3The index of (1); f is an edge effect factor, and h is an adjacent constant between adjacent suspended copper sheets.
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