CN105511621A - Handheld sensor, control device and electronic device - Google Patents

Abstract

The invention discloses a hand-held sensor for an electronic device, comprising: a plurality of capacitive sensors disposed at different locations on the electronic device; and the processing module is connected with the plurality of capacitive sensors and is used for processing the outputs of the plurality of capacitive sensors to detect the action of holding the electronic device by a user. The handheld sensor of the embodiment of the invention can detect the action of the user for holding the electronic device, is convenient to operate, enables the electronic device to be more intelligent and enriches the user experience. The invention also discloses a control device and an electronic device.

Description

Hand grip sensors, controls and electronics

technical field

The invention relates to electronic device technology, in particular to a hand-held sensor, a control device and an electronic device.

Background technique

Existing electronic devices are operated through a touch screen, which sometimes requires complex touch operations or menu operations, which is not convenient enough.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention needs to provide a grip sensor, a control device and an electronic device.

The embodiment of the first aspect of the present invention provides a grip sensor for an electronic device, the grip sensor includes:

a plurality of capacitive sensors disposed at different locations on the electronic device; and

A processing module connected to the plurality of capacitive sensors, the processing module is used to process the output of the plurality of capacitive sensors to detect the action of the user holding the electronic device.

The hand-held sensor in the embodiment of the present invention can detect the action of the user holding the electronic device, which is convenient to operate, makes the electronic device more intelligent, and enriches user experience.

The embodiment of the second aspect of the present invention provides a control device, including the above-mentioned hand grip sensor, and the processing module is further configured to determine whether the hand grip is the first preset action and when the hand grip is the first preset action generating a predetermined control signal to control the electronic device during the first preset action.

The control device according to the embodiment of the present invention includes a hand-held sensor, thereby detecting the movement of the hand-held electronic device and controlling the electronic device, which facilitates operation, makes the electronic device more intelligent, and enriches user experience.

An implementation manner of a third aspect of the present invention provides an electronic device, including the above-mentioned control device.

The electronic device according to the embodiment of the present invention includes a control device, which controls the electronic device by detecting the movement of the electronic device in hand, which is convenient to operate, makes the electronic device more intelligent, and enriches user experience.

Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic diagram of functional modules of a hand grip sensor according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the connection between a capacitive sensor and a processing module according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of connection between a capacitive sensor and a processing module according to another embodiment of the present invention.

Fig. 4 is a schematic diagram of functional modules of a control device according to an embodiment of the present invention.

Fig. 5 is a schematic diagram of the operation of the control device according to one embodiment of the present invention.

FIG. 6 is a schematic diagram of functional modules of an electronic device according to an embodiment of the present invention.

detailed description

Embodiments of embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, are only for explaining the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention.

Please refer to FIG. 1 , a hand sensor 10 according to an embodiment of the present invention is used in an electronic device 20 , and includes a capacitive sensor 100 and a processing module 200 .

The capacitive sensor 100 includes a plurality, and is arranged on different positions of the electronic device 20 .

The processing module 200 is connected to a plurality of capacitive sensors 100 for processing the output of the capacitive sensors 100 to detect the action of the user holding the electronic device 20 .

Generally, when a user uses an electronic device 20 such as a mobile phone, he usually holds the electronic device 20 by hand and performs related operations. The capacitive sensor 100 is usually disposed on a position on the electronic device 20 that is easily coupled with the user. The user's common holding posture includes one-handed or two-handed horizontal or vertical holding, so the areas with the highest coupling frequency between the electronic device 20 and the hand should be concentrated on the rear side wall, left side wall and right side wall of the electronic device 20 .

The output of the capacitive sensor 100 and the hand-holding action should be uniquely determined, but the output of the capacitive sensor 100 corresponding to a certain hand-holding action may be an interval value. That is to say, different hand-holding actions correspond to different output interval values of the capacitive sensor 100 .

The electronic device 20 is usually provided with a storage device such as a register (not shown in the figure), and the register stores a mapping table formed by the output of the capacitive sensor when each gripping action is coupled with the capacitive sensor. After detecting the output of the capacitive sensor 100, the processing module 200 matches the detected output of the capacitive sensor 100 with the mapping table, and when the output value falls within a certain preset interval, it indicates that the action corresponding to the preset interval If the matching is successful, the action of the hand-held electronic device 20 is determined.

The preset interval value is usually determined by repeating a large number of measurements on the same gripping motion of the hand and the electronic device 20 before the electronic device 20 leaves the factory. Different hand grips correspond to different preset intervals, and the preset intervals are relatively stable, that is to say, when the same hand grip is coupled with the electronic device 20, the detected output of the capacitive sensor 100 falls within the predetermined interval. .

The grip sensor 100 in the embodiment of the present invention can detect the action of the user holding the electronic device 20 , which is convenient to operate, makes the electronic device more intelligent, and enriches user experience.

Referring to FIG. 2 and FIG. 3 , in some embodiments, the electronic device 20 includes a rear case 210 and a body 220 , a plurality of capacitive sensors 100 are disposed on the rear case 210 , and the processing module 200 is disposed on the body 220 . The above-mentioned detection of the user's hand-holding action is realized by these capacitive sensors 100 .

Multiple capacitive sensors 100 are connected to the input pins of the hand sensor 10 , and the number of capacitive sensors 100 is determined by the number of input pins of the hand sensor 10 .

The hand grip sensor 10 is used to convert the capacitive output of the capacitive sensor 100 connected to its input pin into a digital value, so as to recognize the user's hand grip.

The digital quantity has no practical significance, it only represents a relative size, and a reference analog quantity is needed as a conversion standard. The output digital quantity indicates the magnitude of the input signal relative to the reference signal.

In this embodiment, the hand grip sensor 10 used has 4 input pins, so it can include a maximum of 4 capacitive sensors 100 . At the same time, in order to ensure the effective and correct identification of the operation, at least two capacitive sensors 100 should be included. The following will take four capacitive sensors 100 as an example for illustration.

The capacitive sensor 100 connected to the input pin of the hand sensor 10 is used as a polar plate of the capacitor. When the human body approaches, the human body forms the other polar plate of the capacitor. According to the capacitance calculation formula,

$\mathrm{<span\; class="notranslate">\; C</span>}<span\; class="notranslate">\; =</span>\frac{\mathrm{<span\; class="notranslate">\; \&epsiv;</span>}\mathrm{<span\; class="notranslate">\; S</span>}}{\mathrm{<span\; class="notranslate">\; 4</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}\mathrm{<span\; class="notranslate">\; k</span>}\mathrm{<span\; class="notranslate">\; d</span>}}\mathrm{<span\; class="notranslate">\; \dots </span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$

Among them, ε is the dielectric constant, S is the facing area between the two polar plates, k is the electrostatic constant, and d is the distance between the two polar plates.

It can be seen from formula (1) that when other conditions are constant, when the distance between the two plates is closer, that is, the smaller d is, the larger the capacitance value C is. When other conditions are constant, the larger the facing area between the two plates, that is, the larger S, the larger the capacitance C. And when the distance between the two plates and the facing area between the two plates are constant, the change of the dielectric constant will also affect the change of the capacitance C.

Therefore, when the user holds the electronic device 20, the four capacitance values will all change. Due to the different holding postures, the changes of the four plates are different. Therefore, the user's action information can be judged according to the change of the capacitance value.

In the design, considering the convenience of the user's operation and the effective triggering of the operation, the capacitive sensor 100 should be set at a position that can be touched by the user's hand. For example, the length of the capacitive sensor 100 usually accounts for 50%-75% of the length of the sidewall of the electronic device 20 , and the width of the capacitive sensor 100 accounts for 10%-30% of the width of the electronic device 20 . The capacitive sensor 100 at the bottom can be arranged in an "L" shape, so as to ensure that both the bottom corner and the side wall of the electronic device 20 can be detected.

Four capacitive sensors 100 are symmetrically arranged at four corners of the rear case 210 .

The above design makes the detection of the capacitance value not be affected by the heating of other components of the electronic device, such as the central processing unit (CPU) or the battery, so that the variation range of the capacitance value is basically consistent when the internal heating of the electronic device is heated.

For some electronic devices 20, such as shown in FIG. In such an electronic device 20, the body 220 further includes a shrapnel 221, the shrapnel 221 is electrically connected to the processing module 200, and is used to mortgage the capacitive sensor 100 to connect the capacitive sensor 100 and the processing module when the rear shell 210 is installed on the body 220 200.

Such a design facilitates the connection and disassembly of the capacitive sensor 100 and the processing module 200 , and does not cause damage to the grip sensor after the rear shell 210 is disassembled.

For other electronic devices 20 , for example, as shown in FIG. 3 , the rear case 210 is fixed on the body 220 , that is, the rear case 210 is integrally formed with the body. The body of such an electronic device 20 includes wires 230 for connecting the capacitive sensor 100 and the processing module 200 .

The wire 230 can be a flexible cable connector, such as a flexible printed circuit board (Flexible Printed Circuitboard, FPC) cable connector. Since the flexible cable is windable, it can effectively save the internal space of the electronic device 20 .

In such an embodiment, the material of the rear case 210 should be non-metallic materials such as plastic and glass.

Since the hand grip sensor 10 adopts an active self-capacitance sensor, that is, the specific position of the hand and the coupling state with the electronic device 20 are determined by using the capacitive characteristic change formed between the capacitive sensor 100 and the hand, the material of the rear shell 210 is required to be Non-metallic materials, such as plastic or glass, are common materials for preparing the back shell.

The capacitive sensor 100 can be copper foil or ITO (Indium Tin Oxide, indium tin oxide) thin film. These materials have good conductivity. When the hand is coupled with the capacitive sensor 100 , the electric field change is used to determine the capacitive output.

Please refer to FIG. 4 , the control device 30 according to the embodiment of the present invention includes the above-mentioned hand grip sensor 10, the difference is that the processing module 200 is also used to judge whether the hand grip is the first preset action, and A predetermined control signal is generated to control the electronic device 20 for the first preset action.

During the operation, the user is usually required to touch at least two capacitive sensors 100 at the same time before triggering the grip sensor 10 to perform the next operation. In this way, false triggering of actions is effectively prevented. In some special operations, for example, when performing a secondary operation after turning on certain functions, the user can also complete the operation by coupling with the single capacitive sensor 100 , and it will not be regarded as a misoperation.

Please refer to FIG. 5 , the processing module 200 detects the action of the user holding the electronic device 20 according to the output of the capacitive sensor 100, and matches the information of the specific coupling action with the first preset action to determine whether the hand holding action is the first preset action. Assume an action, if yes, control the electronic device 20 according to the relevant operation corresponding to the first preset action.

In order to determine the specific coupling action of the user, it is necessary to detect the basic information and related detailed information. The basic information includes whether it is coupled, the coupling position, etc., and the relevant detailed information includes the coupling times, frequency or sequence.

The detection of basic information and related detailed information is presented by the change of capacitance value. Before leaving the factory, a large number of changes in capacitance value during the same coupling action are collected as samples, and after statistical processing, such as removing invalid data, performing mean and variance The calculation can obtain the effective range of capacitance of a specific coupling action, so as to ensure that the data of each gripping action has good convergence. When the capacitance value generated by a coupling action performed by the user in actual operation falls within the effective range, the processing module 200 can determine the corresponding coupling action of the user.

Specifically, according to the variation range of the capacitance value, it can be judged whether the capacitive sensor 100 is coupled with the user's hand or placed in other still objects.

If the capacitive sensor 100 is in the state of being coupled with the user, usually the variation range of the capacitance value is different according to the different coupling strengths of the left and right hands, so that the user's coupling habit can be determined, such as left-handed coupling or right-handed coupling.

Furthermore, due to different coupling parts, the variation range of the capacitance value is also different. By detecting the size of the coupling area between the hand and the capacitive sensor 100, the specific part coupled with the capacitive sensor 100 can be further determined, such as the palm or fingers.

Continuing to detect relevant detailed information and linking the above basic information, a specific coupling posture information library can be established and used as the first preset action.

By detecting the number of capacitance changes of the capacitive sensor 100 within a period of time, the number of times the hand is coupled with the capacitive sensor 100 can be determined.

In addition, the frequency at which the hand is coupled to the capacitive sensor 100 can also be determined by detecting the changing frequency of the capacitance value.

By detecting the magnitude of the difference in capacitance change, the strength of coupling between the hand and the capacitive sensor 100 is determined. For example, the range of capacitance change generated by the grip action capacitive sensor is C1 to C2, including points C11 and C12, and C11<C12. When the detected capacitance change range is C1 to C11, it is judged that the user is lightly gripping. When the capacitance variation range is from C11 to C12, it is judged that the user is gripping with normal strength, and when it is detected that the capacitance variation is between C12 and C2, it is judged that the user is gripping with force.

For the convenience of description, the four capacitive sensors 100 are respectively numbered C101, C102, C103 and C104. As mentioned above, two of the four capacitive sensors, C101 and C102, are arranged on the left side of the rear case 210, and the other two capacitive sensors, C103 and C104, are arranged symmetrically on the right side of the rear case 210. The changed capacitance can be determined by the change of the capacitance value. The number of the sensor 100 , that is, the order in which the hand is coupled with the plurality of capacitors 100 .

As mentioned above, the control device 30 in the embodiment of the present invention includes the hand grip sensor 10, and the specific coupling action between the user and the electronic device 20 can be determined through the detection of the capacitance value change by the processing module 200. The processing module 200 controls the electronic device 20 by identifying the coupling action. The device 20 performs related actions, thereby generating more interactions with the user and improving user experience.

The following describes this embodiment by taking a specific usage scenario as an example.

Scenario 1: Unlock the electronic device 20 according to a first preset action.

When the electronic device 20 is not in use, it is often in a standby state. In order to ensure the security of user information, a password is set for the electronic device 20. When the electronic device 20 is used again, the electronic device 20 needs to be activated by unlocking for the user to use again. .

In such a scenario, the user can encrypt and unlock the electronic device through the coupling action with the capacitive sensor 100 , for example, through different coupling sequences between the hand and the capacitive sensor 100 . This makes the unlocking process more secretive, and the operation is quick and convenient.

Scenario 2: Taking a screenshot of the content displayed on the display screen of the electronic device 20 according to the first preset action.

Usually, during the process of using the electronic device 20 , such as reading text or browsing pictures, the user saves the content he is interested in through a shortcut method such as taking a screenshot.

In such a scenario, the user can perform a quick screen capture operation by coupling with the capacitive sensor 100 , for example, a predetermined number of times within a predetermined time, which is convenient and fast.

Scenario 3: switching the input method on the electronic device 20 according to the preset first action.

Usually, when the user uses the electronic device 20 to enter complex characters, he needs to use multiple input methods and switch repeatedly during the input process.

In such a scenario, the user can quickly switch the input method to the input method corresponding to the capacitive sensor by coupling with the capacitive sensor 100 , for example, with a specific capacitive sensor, which is convenient and quick.

Please refer to FIG. 6 , the electronic device 20 of the embodiment of the present invention includes the control device 30 of the above embodiment.

It should be noted that the electronic device 20 in the embodiment of the present invention can be realized by the hand sensor 10 and the control device 30 in the above embodiment. For the unexpanded part, please refer to the same or similar information as the hand sensor 10 and the control device 30 in the above embodiment. part, which will not be repeated here.

The electronic device 20 in the embodiment of the present invention includes a control device 30, which controls the electronic device 20 by detecting the movement of the electronic device 20 in hand, and makes the electronic device 20 more intelligent, which enriches the user experience.

In describing the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front ", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiment of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific configuration and operation, and therefore should not be construed as limiting the embodiments of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection, or an integral connection; it can be mechanically connected, it can be electrically connected, or it can communicate with each other; it can be directly connected or indirectly connected through an intermediary, and it can be internal communication between two components or two components interaction relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific situations.

In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, and may also include the first and second features. The second features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "below" and "under" the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is less horizontal than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, the components and arrangements of specific examples are described above. Of course, they are only examples and are not intended to limit the invention. Furthermore, embodiments of the present invention may repeat reference numerals and/or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. . In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

In the description of this specification, reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" or "some examples" etc. Specific features, structures, materials, or features described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processing modules, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment used. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device, or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. processing to obtain the program electronically and store it in computer memory.

It should be understood that each part of the embodiments of the present invention may be implemented by hardware, software, firmware or a combination thereof. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (11)

1. a grip sensor, for electronic installation, is characterized in that, described grip sensor comprises:

Multiple capacitive transducer be arranged on described electronic installation diverse location; And

The processing module be connected with described multiple capacitive transducer, described processing module for the treatment of the output of described multiple capacitive transducer to detect the action that user holds described electronic installation.

2. grip sensor as claimed in claim 1, it is characterized in that, described electronic installation comprises back cover, and described grip sensor comprises the multiple capacitive transducers be arranged on described back cover.

3. grip sensor as claimed in claim 2, it is characterized in that, described back cover is substantially rectangular, and the number of described multiple capacitive transducer is four, and is separately positioned on 4 corners of described back cover.

4. grip sensor as claimed in claim 2, it is characterized in that, described electronic installation also comprises body, and described processing module is arranged on described body, and described back cover is detachably installed on the body.

5. grip sensor as claimed in claim 4, it is characterized in that, described body comprises the shell fragment be electrically connected with described processing module, and described shell fragment is pressed on described capacitive transducer to connect described capacitive transducer and described processing module when shell is arranged on described body in the rear.

6. grip sensor as claimed in claim 2, it is characterized in that, described electronic installation also comprises body, and described processing module is arranged on described body, described back cover is fixedly installed on the body, and described body comprises the wire connecting described capacitive transducer and described processing module.

7. grip sensor as claimed in claim 2, it is characterized in that, described back cover comprises plastics back cover or glass back cover.

8. grip sensor as claimed in claim 1, it is characterized in that, described capacitive transducer is Copper Foil or ito thin film.

9. a control device, it is characterized in that, described control device comprises the grip sensor as described in claim 1-8 any one, and described processing module is also for judging whether described gripping action is the first deliberate action and produces predetermined control signal when described gripping action is described first deliberate action to control described electronic installation.

10. control device as claimed in claim 9, it is characterized in that, described first predetermined action comprises the coupling area size of hand and described capacitive transducer, the dynamics that is coupled of order that be coupled number of times and the frequency of hand and described capacitive transducer, hand are coupled with described multiple capacitive transducer and hand and described capacitive transducer.

11. 1 kinds of electronic installations, is characterized in that, comprise the control device as described in any one of claim 9-10.