CN112256159B - Capacitive pressure touch device and method - Google Patents

Capacitive pressure touch device and method Download PDF

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CN112256159B
CN112256159B CN202011281527.8A CN202011281527A CN112256159B CN 112256159 B CN112256159 B CN 112256159B CN 202011281527 A CN202011281527 A CN 202011281527A CN 112256159 B CN112256159 B CN 112256159B
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capacitance
capacitive
response
interface unit
value
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CN112256159A (en
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童宗伟
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0414Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Position Input By Displaying (AREA)

Abstract

The embodiment of the invention provides a capacitive pressure touch device and a capacitive pressure touch method, wherein a capacitive sensing unit is arranged at the bottom of an interaction module to form a capacitive sensing matrix, the capacitive sensing unit comprises a flexible conducting layer, a flexible insulating layer and a capacitive detection layer which are sequentially stacked, two adjacent capacitive detection layers share two capacitive output points, a control module is provided with a transverse interface unit and a longitudinal interface unit, two capacitive output points of the same capacitive detection layer are respectively connected with different interfaces in the transverse interface unit, the other two capacitive output points are respectively connected with different interfaces in the longitudinal interface unit, and the capacitive output points on the non-adjacent capacitive detection layers can share one longitudinal interface unit or one interface in the transverse interface unit. The capacitance sensing unit and the interface of the control module are connected in a sharing way, so that the number of capacitance scanning channels can be saved, and the scanning resolution can be improved; the capacitive sensing element is adopted as a capacitive sensing unit, so that the capacitive sensing unit is simple in structure, low in cost and high in anti-interference capability.

Description

Capacitive pressure touch device and method
Technical Field
The invention relates to the technical field of capacitive screens, in particular to a capacitive pressure touch device and a capacitive pressure touch method.
Background
Capacitive touch screens are made by plating a layer of transparent special metallic conductive material on the surface of glass. When a finger touches the metal layer, the capacitance of the contact point changes, so that the frequency of an oscillator connected with the contact point changes, and the touch position can be determined by measuring the frequency change to obtain information.
In the capacitive screen control board of the prior art, chips for controlling the signal transmission channel and the signal receiving channel of the capacitive screen are usually disposed on the same printed wiring board.
As the number of channels increases, the corresponding PCB (printed circuit board ) size needs to increase, which not only increases the occupation of the planar assembly area, but also affects the overall structure.
Disclosure of Invention
In view of the foregoing, embodiments of the present invention are directed to providing a capacitive pressure touch apparatus and a capacitive pressure touch method that overcome or at least partially solve the foregoing problems.
In order to solve the above problems, an embodiment of the present invention discloses a capacitive pressure touch device, including: the capacitive sensing device comprises a control module, an interaction module and at least three capacitive sensing units, wherein the capacitive sensing units are arranged at the bottom of the interaction module to form a capacitive sensing matrix, the capacitive sensing units comprise flexible conducting layers, flexible insulating layers and capacitive detection layers which are sequentially stacked, capacitive output points are arranged at four ends of the capacitive detection layers, two capacitive output points are shared by adjacent capacitive detection layers, the control module is provided with a transverse interface unit and a longitudinal interface unit, two capacitive output points of the same capacitive detection layer are respectively connected with different interfaces in the transverse interface unit, the other two capacitive output points are respectively connected with different interfaces in the longitudinal interface unit, and the capacitive output points on the non-adjacent capacitive detection layers share one longitudinal interface unit or one interface in the transverse interface unit according to preset rules.
Further, the flexible conductive layer or the capacitance detection layer is grounded.
Further, the flexible conductive layer comprises a metal sheet and/or a spring metal conductive film.
Further, the control module further comprises a pressure detection module, a coordinate detection module and an output control module which are electrically connected in sequence;
The pressure detection module is used for receiving capacitance change values of response interfaces in the transverse interface unit and the longitudinal interface unit and response interface information, carrying out weighted average on the capacitance change values of the response interfaces to obtain target capacitance change values, and converting the target capacitance change values into target pressure change values;
The coordinate detection module is used for judging a corresponding response capacitance sensing unit by utilizing the relation between the capacitance change value and the response interface information, and calling a preset coordinate corresponding to the response capacitance sensing unit as a target coordinate value;
The output control module is used for matching with a preset control signal corresponding to the target pressure change value and outputting the corresponding preset control signal and the target coordinate value.
The embodiment of the invention discloses a capacitive pressure touch control method, which comprises the capacitive pressure touch control device, and comprises the following steps:
The control module receives the capacitance change value and response interface information of the capacitance sensing unit through response interfaces in the transverse interface unit and the longitudinal interface unit;
the control module judges a corresponding response capacitance sensing unit by utilizing the relation between the capacitance change value and the response interface information, and calls a preset coordinate corresponding to the response capacitance sensing unit as a target coordinate value;
The capacitance change value of the response interface is weighted and averaged to obtain a target capacitance change value, and the target capacitance change value is converted into a target pressure change value;
and matching a preset control signal corresponding to the target pressure change value, and outputting the corresponding preset control signal and the target coordinate value.
Further, the step of determining the corresponding response capacitance sensing unit by the control module according to the relationship between the capacitance change value and the response interface information, and calling the preset coordinate corresponding to the response capacitance sensing unit as the target coordinate value includes:
Judging a corresponding response capacitance sensing unit by utilizing the relation between the capacitance change value and the response interface information, and calling preset coordinates corresponding to the response capacitance sensing unit;
And carrying out secondary adjustment on the preset coordinate value by utilizing the capacitance change value to obtain a target coordinate value.
Further, the step of matching the preset control signal corresponding to the target pressure change value and outputting the corresponding preset control signal and the target coordinate value includes:
And when the target pressure change value is smaller than a first threshold value, outputting the target coordinate value and a corresponding preset control signal, wherein the corresponding control signal is a null value.
Further, before the step of receiving the capacitance change value and the response interface information of the capacitance sensing unit through the response interfaces in the transverse interface unit and the longitudinal interface unit, the control module further includes:
And initializing the capacitance sensing unit, and setting the acquired initial capacitance value as a pressing start control reference threshold value.
The embodiment of the invention discloses an electronic device, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the computer program realizes the steps of the capacitive pressure touch control method when being executed by the processor.
The embodiment of the invention discloses a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program realizes the steps of the capacitive pressure touch control method when being executed by a processor.
The embodiment of the invention has the following advantages: the capacitance sensing unit and the interface of the control module are connected in a sharing way, so that the number of capacitance scanning channels can be saved, and the scanning resolution can be improved; the capacitive sensing element is adopted as a capacitive sensing unit, so that the capacitive sensing unit is simple in structure, low in cost and high in anti-interference capability.
Drawings
FIG. 1 is a schematic diagram of a capacitive pressure touch device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a capacitive touch device according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating steps of an embodiment of a capacitive pressure touch method according to the present invention;
fig. 4 is a schematic diagram of a computer device of a capacitive pressure touch method according to the present invention.
100 Capacitance sensing units, 110 flexible conductive layers, 120 flexible insulating layers, 130 capacitance detection layers, 200 lateral interface units, 300 longitudinal interface units.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
One of the key ideas of the embodiments of the present invention is to provide a capacitive pressure touch device and a method, wherein the capacitive pressure touch device includes: the capacitive sensing device comprises at least three capacitive sensing units 100, a control module and an interaction module, wherein the capacitive sensing units 100 are arranged at the bottoms of the interaction modules to form a capacitive sensing matrix, each capacitive sensing unit 100 comprises a flexible conducting layer 110, a flexible insulating layer 120 and a capacitive detection layer 130 which are sequentially stacked, capacitive output points are arranged at four ends of each capacitive detection layer 130, two capacitive output points are shared by adjacent capacitive detection layers 130, each control module is provided with a transverse interface unit 200 and a longitudinal interface unit 300, two capacitive output points of the same capacitive detection layer 130 are respectively connected with different interfaces in the transverse interface unit 200, the other two capacitive output points are respectively connected with different interfaces in the longitudinal interface unit 300, and the capacitive output points on the non-adjacent capacitive detection layers 130 can share one longitudinal interface unit 300 or one interface in the transverse interface unit 200. The capacitance sensing unit 100 and the interface of the control module are connected in a sharing way, so that the number of capacitance scanning channels can be saved, and the scanning resolution can be improved; the capacitive sensing element is adopted as the capacitive sensing unit 100, so that the capacitive sensing unit is simple in structure, low in cost and high in anti-interference capability.
Referring to fig. 1-2, a capacitive pressure touch device of the present invention is shown, which may specifically include: the capacitive sensing unit 100 is arranged at the bottom of the interaction module to form a capacitive sensing matrix, the capacitive sensing unit 100 comprises a flexible conductive layer 110, a flexible insulating layer 120 and a capacitive detection layer 130 which are sequentially stacked, the four ends of the capacitive detection layer 130 are respectively provided with a capacitive output point, two capacitive output points are shared by adjacent capacitive detection layers 130, the control module is provided with a transverse interface unit 200 and a longitudinal interface unit 300, two capacitance output points of the same capacitance detection layer 130 are respectively connected to different interfaces in the lateral interface unit 200, and the other two capacitance output points are respectively connected to different interfaces in the longitudinal interface unit 300, and the capacitance output points on non-adjacent capacitance detection layers 130 may share an interface in the longitudinal interface unit 300 or the lateral interface unit 200. In this embodiment, the capacitance sensing unit 100 includes a flexible conductive layer 110 and a capacitance detection layer 130 that are disposed in parallel, where the flexible conductive layer 110 and the capacitance detection layer 130 are connected through a flexible insulating layer 120, and the flexible conductive layer 110 receives external pressure to generate elastic deformation, so that the relative position between the flexible conductive layer 110 and the capacitance detection layer 130 is changed, and further, the capacitance value of the capacitance sensing unit 100 is changed, and the flexible insulating layer 120 can ensure that the flexible conductive layer 110 and the capacitance detection layer 130 have a certain installation position size before and have a good rebound effect when pressed. The materials of the flexible conductive layer 110, the capacitance detection layer 130 and the flexible insulating layer 120 can be transparent or non-transparent materials, similar to the transparent metal conductive materials of the current resistor screen or capacitor screen, and the like. The above-mentioned capacitive sensing unit 100 transmits the capacitance change value to the corresponding interface of the control module, different capacitive sensing units 100 are connected to different interfaces on the control module, the control module in this embodiment includes a lateral interface unit 200 and a longitudinal interface unit 300, the lateral interface unit 200 and the longitudinal interface unit 300 respectively include a plurality of interfaces, the capacitive sensing units 100 are arranged below the interactive module in a matrix form, four capacitive output points are disposed at the end of the capacitive detection layer 130, the capacitive output points are used for respectively detecting the capacitance change value at the corresponding positions, and specifically, the distances between the four capacitive output points and the central position of the capacitive detection layer 130 are equal. The capacitive sensing units 100 are arranged in a matrix form, two adjacent capacitive output points are shared between the capacitive sensing units 100 which are transversely arranged, two other adjacent capacitive output points are shared between the capacitive sensing units 100 which are longitudinally arranged, the capacitive output points are all connected with interfaces in the control module, the capacitive output points on the adjacent capacitive sensing units 100 cannot share an interface in the transverse interface unit 200 or the longitudinal interface unit 300, the capacitive output points on the non-adjacent capacitive sensing units 100 can share an interface in the transverse interface unit 200 or the longitudinal interface unit 300, the interface combination mode is that, the signal output uniqueness of each contact point is guaranteed, the channel number of the capacitive scanning line can be saved, and the scanning resolution is improved. Besides the function of detecting the capacitance value, the control unit can also position the responding capacitance sensing units 100 according to the corresponding response interface information, specifically, the capacitance sensing units 100 are arranged in a matrix form, coordinate values of the center positions of the capacitance sensing units 100 are stored in the system, the coordinate values of the center positions of the corresponding capacitance sensing units 100 are matched through analysis of the response interface information, corresponding control signals are matched according to the coordinate values and the pressure value change values, capacitive pressure touch control can be achieved, and the resolution of the capacitive screen can be high in detection precision and resolution of the electromagnetic screen.
The application is not limited to the carrier form of the capacitive pressure touch device. Specifically, the capacitive pressure touch device can be set as a capacitive pressure touch display, and can also be set as a capacitive pressure touch mobile phone screen or a computer screen.
In this embodiment, the flexible conductive layer 110 or the capacitance detection layer 130 is grounded. By grounding one of the flexible conductive layer 110 or the capacitance detection layer 130 in the capacitance sensing unit 100, the capacitance sensing unit 100 can realize a structure of a grounded capacitance.
In this embodiment, the flexible conductive layer 110 includes a metal sheet and/or a spring metal conductive film. The metal sheet has the advantages of simple structure, low cost, flexible conductive layer 110 made of metal sheets, sensitive conductive performance, good rebound resilience and long service life.
In this embodiment, the control module further includes a pressure detection module, a coordinate detection module, and an output control module that are electrically connected in sequence;
the pressure detection module is configured to receive capacitance change values of response interfaces in the transverse interface unit 200 and the longitudinal interface unit 300 and response interface information, weight-average the capacitance change values of the response interfaces to obtain a target capacitance change value, and convert the target capacitance change value into a target pressure change value;
the coordinate detection module is configured to determine a corresponding response capacitance sensing unit 100 according to a relationship between the capacitance change value and the response interface information, and call a preset coordinate corresponding to the response capacitance sensing unit 100 as a target coordinate value;
The output control module is used for matching with a preset control signal corresponding to the target pressure change value and outputting the corresponding preset control signal and the target coordinate value.
Referring to fig. 3, a capacitive pressure touch method of the present invention is shown, including a capacitive pressure touch device as described above, including:
S100, receiving capacitance change values and response interface information of response interfaces in the transverse interface unit 200 and the longitudinal interface unit 300;
s200, judging a corresponding response capacitance sensing unit 100 by utilizing the relation between the capacitance change value and the response interface information, and calling a preset coordinate corresponding to the response capacitance sensing unit 100 as a target coordinate value;
s300, obtaining a target capacitance change value by weighted average of the capacitance change values of the response interface, and converting the target capacitance change value into a target pressure change value;
S400, matching the preset control signal corresponding to the target pressure change value, and outputting the corresponding preset control signal and the target coordinate value.
Referring to the above step S100, the capacitance change values and response interface information of the response interfaces in the lateral interface unit 200 and the longitudinal interface unit 300 are received; specifically, the capacitance sensing unit 100 in the capacitance sensing matrix is provided with a capacitance output point, the capacitance output point is electrically connected with an interface in the control module, when the capacitance sensing matrix detects pressure, the capacitance change value is transmitted to the control module through a corresponding channel, and the control module receives the capacitance change value and corresponding response interface information. Different interfaces are connected to different capacitive sensing units 100, and the response interface information is mainly interface information corresponding to the capacitive sensing unit 100.
Referring to the step S200, the corresponding response capacitance sensing unit 100 is determined according to the relationship between the capacitance change value and the response interface information, and the preset coordinate corresponding to the response capacitance sensing unit 100 is called as the target coordinate value; with reference to the capacitive pressure touch device structure provided by the application, different capacitive sensing units 100 correspond to different interfaces, but non-adjacent capacitive sensing units 100 can share one channel, namely share one interface, one capacitive sensing unit 100 responds to four interfaces simultaneously, two of the interfaces are interfaces of a transverse interface unit 200, and the other two of the interfaces are interfaces of a longitudinal interface unit 300, and according to the capacitive pressure touch device structure, the different capacitive sensing units 100 can have unique interface response results, so that the corresponding capacitive sensing units 100 can be matched according to the result information of the interface response, and then coordinate values of the center point of the preset capacitive sensing units 100 are output to obtain response coordinate values, namely target coordinate values.
Referring to the step S300, a target capacitance change value is obtained by weighted average of the capacitance change values of the response interface, and the target capacitance change value is converted into a target pressure change value; the capacitance change average value of the capacitance sensing unit 100 can be obtained by weighted averaging the capacitance change values of four capacitance output points in the same capacitance sensing unit 100, and the pressure change condition of the corresponding capacitance sensor can be obtained by converting the capacitance change average value into a pressure change value.
Referring to step S400, the preset control signal corresponding to the target pressure change value is matched, and the corresponding preset control signal and the target coordinate value are output. Different response signals are preset in the database, the different response signals correspond to different pressure thresholds, the acquired target pressure change value is matched with the preset threshold in the database to obtain a corresponding control signal, and the control signal and the corresponding coordinate value are utilized to realize the touch control function of the capacitive screen.
The above-described process can be simultaneously responded by a plurality of capacitance sensing units 100, and simultaneous detection and signal control of a plurality of capacitance changes are realized. Ensuring the sensitivity of the device. The multi-point touch detection device has a multi-point touch detection function, and can detect a plurality of pressing points. The pressure capacitance value detection does not need to be sensed by a human finger or a capacitance pen, and is detected by pressure deformation, so that the technical method is realized, the anti-interference capability is stronger, the use is more stable, and the glove can be normally used when being worn.
In this embodiment, the step S200 of determining the corresponding response capacitance sensing unit 100 by using the relationship between the capacitance change value and the response interface information, and calling the preset coordinate corresponding to the response capacitance sensing unit 100 as the target coordinate value includes:
Judging a corresponding response capacitance sensing unit 100 by utilizing the relation between the capacitance change value and the response interface information, and calling a preset coordinate corresponding to the response capacitance sensing unit 100;
Referring to the above steps, with the interface connection method in the capacitive pressure touch device of the present application, each capacitive sensing unit 100 corresponds to a unique interface response result, so that the corresponding capacitive sensing unit 100 can be matched according to the response interface information, and then the coordinate point of the response can be obtained through the central coordinate point corresponding to the capacitive sensing unit 100 in the preset database.
And carrying out secondary adjustment on the preset coordinate value by utilizing the capacitance change value to obtain a target coordinate value. Specifically, when the pressure detected by the capacitive sensing unit 100 is not at the center position detected by the capacitive sensing unit 100, the capacitance variation values output by the four capacitive output points detected by the capacitive sensing unit 100 are different, and the accurate position of the touch point is calculated by using the capacitance variation difference values of the four points and the coordinate value of the center position of the capacitive sensing unit 100. And realizing accurate positioning of the touch target point.
In this embodiment, the step of matching the preset control signal corresponding to the target pressure change value and outputting the corresponding preset control signal and the target coordinate value includes:
And when the target pressure change value is smaller than a first threshold value, outputting the target coordinate value and a corresponding preset control signal, wherein the corresponding control signal is a null value.
And referring to the steps, the first threshold value is defined as a signal control critical point, and when the target pressure change value is smaller than the first threshold value, the system only outputs a corresponding target coordinate value result and does not respond to other control signals. When the target pressure change value is greater than or equal to the first threshold value, outputting corresponding control signals according to different threshold value limits, and specifically, associating control signals with related parameters such as the frequency or the duration of the pressure change.
In this embodiment, before the step of receiving the capacitance change value of the response interface and the response interface information in the lateral interface unit 200 and the longitudinal interface unit 300, the method further includes:
and initializing the capacitance sensing unit 100, and setting the acquired initial capacitance value as a pressing start control reference threshold value.
Referring to the above steps, since the initial pressure value is generated by the initial capacitive sensor unit 100 due to the installation error when leaving the factory, when no external force is generated, the detected initial capacitance value is used as the reference threshold, and the capacitance change value detected in the actual process is the current capacitance value minus the reference threshold of the pressing start control, so that the capacitive sensor unit 100 is calibrated, and the sensitivity of pressure detection can be ensured. The error change of capacitance value caused by the change of installation and materials is solved.
It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
Referring to fig. 4, a computer device of a capacitive pressure touch method of the present invention may specifically include the following:
The computer device 12 described above is embodied in the form of a general purpose computing device, and the components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, a bus 18 that connects the various system components, including the system memory 28 and the processing units 16.
Bus 18 represents one or more of several types of bus 18 structures, including a memory bus 18 or memory controller, a peripheral bus 18, an accelerated graphics port, a processor, or a local bus 18 using any of a variety of bus 18 architectures. By way of example, and not limitation, such architectures include Industry Standard Architecture (ISA) bus 18, micro channel architecture (MAC) bus 18, enhanced ISA bus 18, video Electronics Standards Association (VESA) local bus 18, and Peripheral Component Interconnect (PCI) bus 18.
Computer device 12 typically includes a variety of computer system readable media. Such media can be any available media that is accessible by computer device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and/or cache memory 32. The computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer storage media. By way of example only, storage system 34 may be used to read from or write to non-removable, nonvolatile magnetic media (commonly referred to as a "hard disk drive"). Although not shown in fig. 4, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk such as a CD-ROM, DVD-ROM, or other optical media may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. The memory may include at least one program product having a set (e.g., at least one) of program modules 42, the program modules 42 being configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored in, for example, a memory, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules 42, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods of the embodiments described herein.
The computer device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, camera, etc.), one or more devices that enable a user to interact with the computer device 12, and/or any devices (e.g., network card, modem, etc.) that enable the computer device 12 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 22. Moreover, computer device 12 may also communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet, through network adapter 20. As shown, network adapter 20 communicates with other modules of computer device 12 via bus 18. It should be appreciated that although not shown in fig. 4, other hardware and/or software modules may be used in connection with computer device 12, including, but not limited to: microcode, device drivers, redundant processing units 16, external disk drive arrays, RAID systems, tape drives, data backup storage systems 34, and the like.
The processing unit 16 executes various functional applications and data processing by running programs stored in the system memory 28, for example, implementing the capacitive pressure touch method provided by the embodiment of the present invention.
That is, the processing unit 16 realizes when executing the program: receiving capacitance change values and response interface information of response interfaces in the horizontal interface unit 200 and the vertical interface unit 300; judging a corresponding response capacitance sensing unit 100 by utilizing the relation between the capacitance change value and the response interface information, and calling a preset coordinate corresponding to the response capacitance sensing unit 100 as a target coordinate value; the capacitance change value of the response interface is weighted and averaged to obtain a target capacitance change value, and the target capacitance change value is converted into a target pressure change value; and matching a preset control signal corresponding to the target pressure change value, and outputting the corresponding preset control signal and the target coordinate value.
In an embodiment of the present application, the present application further provides a computer readable storage medium having a computer program stored thereon, where the program when executed by a processor implements the capacitive pressure touch method as provided in all embodiments of the present application:
That is, the program is implemented when executed by a processor: receiving capacitance change values and response interface information of response interfaces in the horizontal interface unit 200 and the vertical interface unit 300; judging a corresponding response capacitance sensing unit 100 by utilizing the relation between the capacitance change value and the response interface information, and calling a preset coordinate corresponding to the response capacitance sensing unit 100 as a target coordinate value; the capacitance change value of the response interface is weighted and averaged to obtain a target capacitance change value, and the target capacitance change value is converted into a target pressure change value; and matching a preset control signal corresponding to the target pressure change value, and outputting the corresponding preset control signal and the target coordinate value.
Any combination of one or more computer readable media may be employed. The computer readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPOM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the application.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or terminal device that comprises the element.
The capacitive pressure touch device and the capacitive pressure touch method provided by the application are described in detail, and specific examples are applied to illustrate the principle and the implementation of the application, and the description of the examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims (10)

1. A capacitive pressure touch device, comprising: the capacitive sensing unit is arranged at the bottom of the interaction module to form a capacitive sensing matrix, the capacitive sensing unit comprises a flexible conducting layer, a flexible insulating layer and a capacitive detection layer which are sequentially stacked, capacitive output points are arranged at four ends of the capacitive detection layer, two adjacent capacitive output points are shared by the capacitive detection layers, two adjacent capacitive output points are shared between the capacitive sensing units which are transversely arranged, and two other adjacent capacitive output points are shared between the capacitive sensing units which are longitudinally arranged; the control module is provided with a transverse interface unit and a longitudinal interface unit, two capacitance output points of the same capacitance detection layer are respectively connected with different interfaces in the transverse interface unit, the other two capacitance output points are respectively connected with different interfaces in the longitudinal interface unit, and the capacitance output points on non-adjacent capacitance detection layers share one longitudinal interface unit or one interface in the transverse interface unit according to a preset rule, wherein the capacitance output points on adjacent capacitance sensing units cannot share one interface in the transverse interface unit or the longitudinal interface unit, and the capacitance output points on non-adjacent capacitance sensing units can share one interface in the transverse interface unit or the longitudinal interface unit.
2. The device of claim 1, wherein the flexible conductive layer or the capacitance detection layer is grounded.
3. The device of claim 1, wherein the flexible conductive layer comprises a metallic sheet and/or a spring metallic conductive film.
4. The apparatus of claim 1, wherein the control module further comprises a pressure detection module, a coordinate detection module, and an output control module electrically connected in sequence;
The pressure detection module is used for receiving capacitance change values of response interfaces in the transverse interface unit and the longitudinal interface unit and response interface information, carrying out weighted average on the capacitance change values of the response interfaces to obtain target capacitance change values, and converting the target capacitance change values into target pressure change values;
The coordinate detection module is used for judging a corresponding response capacitance sensing unit by utilizing the relation between the capacitance change value and the response interface information, and calling a preset coordinate corresponding to the response capacitance sensing unit as a target coordinate value;
The output control module is used for matching with a preset control signal corresponding to the target pressure change value and outputting the corresponding preset control signal and the target coordinate value.
5. A capacitive pressure touch method, comprising the capacitive pressure touch device according to any one of claims 1-4, comprising:
The control module receives the capacitance change value and response interface information of the capacitance sensing unit through response interfaces in the transverse interface unit and the longitudinal interface unit;
the control module judges a corresponding response capacitance sensing unit by utilizing the relation between the capacitance change value and the response interface information, and calls a preset coordinate corresponding to the response capacitance sensing unit as a target coordinate value;
The capacitance change value of the response interface is weighted and averaged to obtain a target capacitance change value, and the target capacitance change value is converted into a target pressure change value;
and matching a preset control signal corresponding to the target pressure change value, and outputting the corresponding preset control signal and the target coordinate value.
6. The method according to claim 5, wherein the step of the control module determining the corresponding response capacitance sensor unit by using the relationship between the capacitance change value and the response interface information, and calling the preset coordinates corresponding to the response capacitance sensor unit as the target coordinate values includes:
Judging a corresponding response capacitance sensing unit by utilizing the relation between the capacitance change value and the response interface information, and calling preset coordinates corresponding to the response capacitance sensing unit;
And carrying out secondary adjustment on the preset coordinate value by utilizing the capacitance change value to obtain a target coordinate value.
7. The method of claim 5, wherein the step of matching the preset control signal corresponding to the target pressure variation value, and outputting the corresponding preset control signal and the target coordinate value, comprises:
And when the target pressure change value is smaller than a first threshold value, outputting the target coordinate value and a corresponding preset control signal, wherein the corresponding preset control signal is a null value.
8. The method of claim 5, wherein prior to the step of the control module receiving the capacitance change value and response interface information of the capacitance sensing unit via the response interfaces within the lateral interface unit and the longitudinal interface unit, further comprising:
And initializing the capacitance sensing unit, and setting the acquired initial capacitance value as a pressing start control reference threshold value.
9. Electronic device, characterized by comprising a processor, a memory and a computer program stored on the memory and capable of running on the processor, which when executed by the processor implements the steps of the capacitive pressure touch method according to any of claims 5 to 8.
10. Computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the steps of the capacitive pressure touch method according to any of claims 5 to 8.
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