WO2017118208A1 - 触控装置及电子设备 - Google Patents

触控装置及电子设备 Download PDF

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Publication number
WO2017118208A1
WO2017118208A1 PCT/CN2016/104979 CN2016104979W WO2017118208A1 WO 2017118208 A1 WO2017118208 A1 WO 2017118208A1 CN 2016104979 W CN2016104979 W CN 2016104979W WO 2017118208 A1 WO2017118208 A1 WO 2017118208A1
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Prior art keywords
touch
target
processing module
user
electrode
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PCT/CN2016/104979
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English (en)
French (fr)
Inventor
张斌
张强
王光兴
李国民
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京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Priority to US15/527,501 priority Critical patent/US20180095569A1/en
Publication of WO2017118208A1 publication Critical patent/WO2017118208A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0443—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a single layer of sensing electrodes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A61B5/6826—Finger
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • Embodiments of the present invention relate to a touch device and an electronic device.
  • the processing module loads a driving signal to the screen through a touch driving electrode (also referred to as a tx electrode), and when the user's skin touches the screen, the electrical parameters of the driving signal loaded at the touch position change.
  • the sensing signal is generated, and the processing module acquires the sensing signal on the screen from the touch sensing electrode (also referred to as the rx electrode), thereby determining the user's touch position and thus determining the touch operation.
  • Embodiments of the present invention provide a technical solution for determining the resistance of a user's body based on the working principle of the touch screen, and can provide data support for determining the health of the user.
  • the embodiment of the present invention provides a touch device including a processing module, a plurality of first touch electrodes, and a plurality of second touch electrodes.
  • the plurality of first touches The target first touch electrode in the electrode forms a conductive link with the target second touch electrode of the plurality of second touch electrodes through the skin of the user;
  • the processing module is configured to first target the target
  • the touch electrode loads the driving signal, and acquires the sensing signal from the target second touch electrode, and determines the human body resistance of the user according to the driving parameter and the electrical parameter change between the sensing signals.
  • the processing module includes: a first determining unit, configured to determine, according to a voltage value of the driving signal and a current value of the sensing signal, the target first touch electrode and a resistance between the target second touch electrodes; a second determining unit for using according to the formula: Determining the body resistance of the user; wherein R f is the body resistance of the user; Z is the resistance between the target first touch electrode and the target second touch electrode; j is a constant; f is the processing module The frequency of the driving signal loaded to the target first touch electrode; L is the inductance value of the connection link between the processing module and the target first touch electrode; C f is when the user performs a touch operation The capacitance value of the coupling capacitor formed between the skin and the target first touch electrode and the target second touch electrode.
  • the processing module is configured to apply a driving signal to the first touch electrode as a variable frequency signal, and Z and R f are curve functions; and the second determining unit performs a curve function.
  • the minimum value of R f is taken as the body resistance of the user.
  • the touch device may further include a first multiplexer disposed between the processing module and each link of the first touch electrodes for processing the The driving signal sent by the module is loaded to the target first touch electrode.
  • the touch device may further include an oscillator disposed between the processing module and the link of the first multiplexer for frequency conversion of a driving signal sent by the processing module.
  • the touch device may further include a first operational amplification circuit disposed between the oscillator and the link of the first multiplexer for power amplification of the frequency-converted drive signal.
  • the touch device may further include a second multiplexer disposed between the processing module and each second touch electrode for connecting the target second touch electrode The sensing signal is sent to the processing module.
  • the touch device may further include an I/V conversion circuit disposed between the second multiplexer and the link of the processing module for using the second multiplexer
  • the sensing signal sent by the processing module performs voltage conversion.
  • the touch device may further include a second operational amplifier circuit disposed between the I/V conversion circuit and the link of the processing module for performing power amplification on the voltage-converted sensing signal.
  • the touch device may further include a filter circuit disposed between the second operational amplifier circuit and the link of the processing module for filtering the power amplified sensing signal.
  • An embodiment of the present invention further provides an electronic device including the above touch device.
  • the electronic device may further include a determining module for determining the health information of the user according to the human body resistance of the user.
  • the electronic device may further include a prompting module for prompting the user for the health letter interest.
  • FIG. 1 is a schematic diagram of a user performing a touch operation on a touch device according to an embodiment of the invention
  • FIG. 2 is a schematic diagram showing the working principle of a touch device according to an embodiment of the invention.
  • FIG. 3 is a schematic diagram showing a relationship between a driving signal and a user's body resistance when the driving signal is a variable frequency signal according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a touch device according to an embodiment of the invention.
  • an embodiment of the present invention provides a technical solution for further determining a human body resistance (human skin resistance) based on a change in an electrical parameter of a sensing signal and a driving signal while detecting a user touch operation.
  • the measured body resistance can be used to further determine the health of the user.
  • an embodiment of the invention provides a touch device including a processing module, a plurality of first touch electrodes, and a plurality of second touch electrodes.
  • a processing module is configured to load a driving signal to the target first touch electrode, obtain a sensing signal from the target second touch electrode, and determine a user's human body according to a change of the electrical parameter between the driving signal and the sensing signal. resistance.
  • the touch device is used to press the touch device to perform a touch operation. And after the target first touch electrode and the target second touch electrode form a conductive link through the user skin, the user's human body resistance is determined by the change of the electrical parameter between the driving signal and the sensing signal. Since the human body resistance can reflect the health condition of the user, the touch device of the embodiment of the invention has greater practical value and practical range.
  • the touch device of the embodiment of the present invention includes a plurality of driving electrodes TX and a plurality of sensing electrodes RX.
  • the finger skin contacts the target driving electrode TX′ in the driving electrode TX and the target sensing electrode RX′ in the sensing electrode RX to form a loop, by which the electrical signal can be
  • the target driving electrode TX' is transmitted to the target sensing electrode RX' through the skin of the finger, whereby the driving signal loaded by the processing module to the target driving electrode TX' can be detected as a sensing signal from the target sensing electrode RX' through the user's finger, thereby being It is fed back to the processing module.
  • the processing module of the embodiment of the present invention may further include a first determining unit configured to determine, according to a voltage value of the driving signal loaded to the target driving electrode TX′ and a current value of the sensing signal fed back from the target sensing electrode RX. a resistance between the target first touch electrode and the target second touch electrode.
  • a first determining unit configured to determine, according to a voltage value of the driving signal loaded to the target driving electrode TX′ and a current value of the sensing signal fed back from the target sensing electrode RX. a resistance between the target first touch electrode and the target second touch electrode.
  • the target driving electrode TX' and the target sensing electrode RX' form a series circuit through the touch human body, the voltage difference between the target driving electrode TX' and the target sensing electrode RX' is higher than that of the upper sensing signal.
  • the current value can obtain the resistance between the target first touch electrode (ie, the target drive electrode TX') and the target second touch electrode (ie, the target sense electrode RX').
  • the processing module of the embodiment of the present invention may further include a second determining unit for using according to the formula: Determining the user's body resistance;
  • R f is the body resistance of the user; Z is the resistance between the target first touch electrode and the target second touch electrode; f is the first touch of the processing module to the target Controlling the frequency of the driving signal loaded by the electrode; L is the inductance value of the connection link between the processing module and the target first touch electrode; C f is the first step of the human skin and the target when the user performs the touch operation
  • the capacitance value of the coupling capacitor formed between the touch electrode and the target second touch electrode; j is a constant, and under the ideal condition, the value is 1, and can be adjusted within an appropriate range to calculate the error of the result.
  • the internal circuit will reach a stable operating temperature, and the operating temperature generally causes the actual value of the inductor L to be slightly larger than the theoretical value. Therefore, in the above formula, the value of j may be slightly larger than 1, to correct the inductance L, to calculate the human body resistance closer to the true value.
  • the driving signal used in the embodiment of the present invention may be a variable frequency signal.
  • Z and R f in the above formula are both a function of a curve that varies with the frequency of the driving signal.
  • a more accurate body resistance can be determined by the correspondence between the body resistance and the drive signals of different frequencies.
  • FIG. 3 is a graph corresponding to the frequency f of the driving signal and the body resistance R f .
  • the frequency f of the driving signal changes within a certain range, it will be at a certain point (F r in FIG. 3 ).
  • the second determining unit of the embodiment takes the minimum value of the curve function R f as the human body resistance of the user.
  • the structure of the processing module of the embodiment of the present invention is described in detail below.
  • the processing module of the embodiment of the present invention may be obtained by one or any combination of software, hardware, firmware, for example, the processing module may include a processor such as a central processing unit (CPU), a data processor (DSP), and the like, for example.
  • a processor such as a central processing unit (CPU), a data processor (DSP), and the like, for example.
  • a memory of a nonvolatile memory that stores a program for performing a corresponding operation, such as a program that performs functions of the first determining unit and the second determining unit.
  • the touch device of the present embodiment includes a touch electrode layer 5 , and the touch electrode layer includes a plurality of first touch electrodes and a plurality of second touch electrodes.
  • the first multiplexer 4 is disposed between the processing module 1 and the link of each of the first touch electrodes.
  • the first multiplexer 4 can select any existing device or circuit for implementing the multiplex function, as a connection device between the processing module 1 and each of the first touch electrodes, and can selectively turn on one of the devices. Or a plurality of links of the first touch electrodes, thereby transmitting the processing module output driving signals to the target first touch electrodes.
  • an oscillator 2 can be further provided between the processing module 1 and the link of the first multiplexer 4 for frequency conversion of the drive signal transmitted by the processing module.
  • a first operational amplifier circuit 3 for power-amplifying the frequency-converted drive signal may be disposed between the oscillator 2 and the link of the first multiplexer 4.
  • the touch device of the present embodiment may further include a second multiplexer 6 disposed between the processing module and the link of each second touch electrode of the touch electrode layer 5, the second plurality Road selection
  • the device 6 can be used as the connection device between the processing module 1 and each of the second touch electrodes, and can be selectively selected as the first multiplexer 4 as described above.
  • the link of one or more of the second touch electrodes is turned on to transmit the processing module output driving signal to the target second touch electrode.
  • an I/V conversion circuit 7 for routing the second multiplexer 6 to the processing module 1 may also be provided.
  • the transmitted sensing signal is subjected to voltage conversion to obtain a signal of a voltage property.
  • a second operational amplifier circuit 8 for power amplification of the voltage-converted induced signal may be further provided.
  • a filter circuit 9 for filtering and noise-reducing the power-amplified sensing signal may be further provided, so that the processing module obtains More accurate results.
  • the touch device of this embodiment may further include an analog/digital (A/D) conversion circuit or device for converting the obtained induced signal from an analog signal to a digital signal.
  • A/D analog/digital
  • the touch device of the embodiment of the invention can accurately determine the resistance value of the user body, and further provides data support for determining the health state of the user.
  • another embodiment of the present invention further provides an electronic device (such as a mobile phone, a PAD, a smart wearable device, etc.), including the above-mentioned touch device, which can determine the body resistance of the user according to the touch operation of the user.
  • an electronic device such as a mobile phone, a PAD, a smart wearable device, etc.
  • the electronic device of the embodiment of the present invention may further include a determining module configured to determine the health information of the user according to the human body resistance of the user.
  • the determining module can be obtained by one of hardware, software, firmware, or any combination.
  • the determining module of the embodiment of the present invention may be an application of an electronic device, and convert the user's body resistance into corresponding health information based on a preset evaluation algorithm.
  • the determining module of the embodiment may be an interaction device connected to the server.
  • the server stores a preset evaluation algorithm, and the determining module may send a request to the server, so that the server completes the evaluation of the user health information according to the evaluation algorithm.
  • the above evaluation algorithm may be, for example, based on the principle that the human body has different body resistance under different health conditions, and a database for mapping the relationship between the body resistance and the health information may be established, and then the function of automatically searching according to the mapping relationship may be implemented in the database. Human body The resistance finds the health information corresponding thereto, and accordingly, when the determining module knows the body resistance value, the health information can be obtained according to the above algorithm.
  • the electronic device of the embodiment of the present invention may further include a prompting module, configured to prompt the user for the health information.
  • the prompt module can be obtained by one of hardware, software, firmware, or any combination.
  • the prompting module may prompt the user to confirm the health information of the user through the screen display, or send the health information to the email address specified by the user, so that the user can check the email by means of the email. Health status; or send health information to a predetermined application (APP).
  • APP predetermined application
  • the user can turn on the function of the electronic device for detecting the body resistance by operation.
  • the screen of the electronic device can provide a virtual detection area, and the corresponding first touch electrode in the detection area is the target.
  • the processing module only loads the driving signal to the target first touch electrode.
  • a loop for detecting the touch is formed, and the processing module of the electronic device can receive the sensing signal according to the target second touch electrode in the loop, and load the driving signal to the target first touch electrode. Determine the user's body resistance.
  • the skin contact area of the finger surface is reached at a certain time.
  • the body resistance determined by the processing module corresponds to R f in FIG. 3 .
  • R f When determining the human health information, R f can be compared with the resistance value of the finger finger in the normal condition, thereby completing the relevant diagnosis.
  • the user can pre-record their corresponding finger pointing into the electronic device, so that the final diagnosis result is more accurate.

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Abstract

一种触控装置及电子设备。该触控装置包括处理模块(1)、多个第一触控电极和多个第二触控电极；在用户进行触控操作时，所述多个第一触控电极中的目标第一触控电极通过用户的皮肤与所述多个第二触控电极中的目标第二触控电极形成导通的链路；所述处理模块用于向所述目标第一触控电极加载驱动信号，并从所述目标第二触控电极获取感应信号，以及根据所述驱动信号以及所述感应信号之间的电参数变化，确定用户的人体电阻。该触控装置能够确定用户的人体电阻，反映用户的健康状况。

Description

触控装置及电子设备 技术领域
本发明的实施例涉及一种触控装置及电子设备。
背景技术
随着科技的进步，具有触摸面板的电子设备已得到广泛普及。基于触摸面板开发新的功能为用户带来更多的体验是当前电子设备产业的发展方向之一。
目前的触摸面板的工作原理之一是：处理模块通过触控驱动电极(也称tx电极)向屏幕加载驱动信号，当用户皮肤触摸屏幕时，触摸位置处所加载的驱动信号的电学参数发生变化从而产生感应信号，处理模块从触控感应电极(也称rx电极)获取屏幕上的感应信号，由此确定用户触摸位置并且进而可以判断触摸操作。
发明内容
本发明的实施例提供一种基于触控屏的工作原理，确定用户人体电阻的技术方案，能够对判断用户身体健康提供数据支持。
本发明的实施例提供一种触控装置，包括处理模块、多个第一触控电极和多个第二触控电极；在用户按压所述触控装置时，所述多个第一触控电极中的目标第一触控电极通过用户的皮肤与所述多个第二触控电极中的目标第二触控电极形成导通的链路；所述处理模块用于向所述目标第一触控电极加载驱动信号，并从所述目标第二触控电极获取感应信号，以及根据所述驱动信号以及所述感应信号之间的电参数变化，确定用户的人体电阻。
例如，在所述触控装置中，所述处理模块包括：第一确定单元，用于根据所述驱动信号的电压值以及所述感应信号的电流值，确定所述目标第一触控电极与所述目标第二触控电极之间的电阻；第二确定单元，用于根据公式：
Figure PCTCN2016104979-appb-000001
确定用户的人体电阻；其中，Rf为用户的人体电阻； Z为所述目标第一触控电极与所述目标第二触控电极之间的电阻；j为常数；f为所述处理模块向所述目标第一触控电极加载的驱动信号的频率；L为所述处理模块与所述目标第一触控电极之间的连接链路的电感值；Cf为用户进行触控操作时，皮肤与目标第一触控电极、目标第二触控电极之间形成的耦合电容的电容值。
例如，在所述触控装置中，所述处理模块配置为向所述第一触控电极加载的驱动信号为变频信号，Z与Rf均为曲线函数；所述第二确定单元将曲线函数Rf的最小取值作为用户的人体电阻。
本发明的一实施例中，所述触控装置还可以包括第一多路选择器，其设置在所述处理模块与每个第一触控电极的链路之间，用于将所述处理模块发送的驱动信号加载至所述目标第一触控电极。
例如，所述触控装置还可以包括振荡器，其设置在所述处理模块与所述第一多路选择器的链路之间，用于对所述处理模块发送的驱动信号进行变频。
例如，所述触控装置还可以包括第一运算放大电路，其设置在所述振荡器与第一多路选择器的链路之间，用于对变频后的驱动信号进行功率放大。
例如，所述触控装置还可以包括第二多路选择器，其设置在所述处理模块与每个第二触控电极的链路之间，用于将所述目标第二触控电极上的感应信号发送至所述处理模块。
例如，所述触控装置还可以包括I/V转换电路，其设置在所述第二多路选择器与所述处理模块的链路之间，用于将所述第二多路选择器向所述处理模块发送的感应信号进行电压转换。
例如，所述触控装置还可以包括第二运算放大电路，其设置在所述I/V转换电路与所述处理模块的链路之间，用于对电压转换后的感应信号进行功率放大。
例如，所述触控装置还可以包括滤波电路，其设置在所述第二运算放大电路与所述处理模块的链路之间，用于对功率放大后的感应信号进行滤波。
本发明的实施例还提供一种电子设备，包括有上述触控装置。
例如，该电子设备还可以包括确定模块，其用于根据用户的人体电阻，确定用户的健康信息。
例如，该电子设备还可以包括提示模块，其用于向用户提示所述健康信 息。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1为用户对本发明实施例的触控装置进行触摸操作的示意图；
图2为本发明一实施例的触控装置的工作原理示意图；
图3为本发明一实施例的驱动信号为变频信号时，其与用户人体电阻的曲线关系示意图；
图4为本发明一实施例的触控装置的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
基于触摸面板的工作原理，本发明的实施例提供了一种在检测用户触摸操作的同时，基于感应信号与驱动信号的电参数变化，进一步确定用户的人体电阻(人体皮肤电阻)的技术方案，所测得的人体电阻可用于进一步判断用户的健康状况。
如图1所示，本发明一实施例提供一种触控装置，包括：处理模块、多个第一触控电极和多个第二触控电极。
在用户按压所述触控装置时，多个第一触控电极中的目标第一触控电极通过用户皮肤与所述多个第二触控电极中的目标第二触控电极形成导通的链路；处理模块用于向上述目标第一触控电极加载驱动信号，并从上述目标第二触控电极获取感应信号，并根据驱动信号以及感应信号之间的电参数变化，确定用户的人体电阻。
本发明实施例利用触控装置，在用户按压所述触控装置以进行触控操作 时，且在目标第一触控电极与目标第二触控电极通过用户皮肤形成导通的链路后，通过驱动信号以及感应信号之间的电参数变化，来确定用户的人体电阻。由于人体电阻可以反映用户的健康状况，因此本发明实施例的触控装置具有更大的实用价值和实用范围。
下面对本发明实施例确定用户人体电阻的技术方案进行详细介绍。
示例性地参考图1和图2，本发明实施例的触控装置包括有多个驱动电极TX以及多个感应电极RX。例如当用户使用手指对触控装置进行按压时，手指皮肤与驱动电极TX中的目标驱动电极TX＇以及感应电极RX中的目标感应电极RX＇相接触从而形成回路，借助该回路电信号可以从目标驱动电极TX＇通过手指皮肤传递到目标感应电极RX＇，由此处理模块向目标驱动电极TX＇加载的驱动信号可经用户手指，作为感应信号从目标感应电极RX＇被检测到，从而可被反馈回处理模块。
下面对本发明实施例的处理模块确定人体电阻的原理进行详细介绍。
例如，本发明实施例的处理模块可以进一步包括第一确定单元，其用于根据向目标驱动电极TX＇加载的驱动信号的电压值以及从目标感应电极RX反馈回的感应信号的电流值，确定所述目标第一触控电极与所述目标第二触控电极之间的电阻。
如图2所示，由于目标驱动电极TX＇与目标感应电极RX＇通过进行触控的人体形成串联电路，因此目标驱动电极TX＇与目标感应电极RX＇之间的电压差比上感应信号的电流值，可以得到目标第一触控电极(即目标驱动电极TX＇)与目标第二触控电极(即目标感应电极RX＇)之间的电阻。
例如，本发明实施例的处理模块可以进一步包括第二确定单元，其用于根据公式：
Figure PCTCN2016104979-appb-000002
确定用户的人体电阻；
在上述公式中，Rf为用户的人体电阻；Z为所述目标第一触控电极与所述目标第二触控电极之间的电阻；f为所述处理模块向所述目标第一触控电极加载的驱动信号的频率；L为所述处理模块与所述目标第一触控电极之间的连接链路的电感值；Cf为用户进行触控操作时，人体皮肤与目标第一触控电极、目标第二触控电极之间形成的耦合电容的电容值；j为常数，在理想条件下取值为1，可以在适当范围内进行调整，以计算结果的误差。例如， 在触控装置通电后，内部电路会达到一个稳定的工作温度，该工作温度一般会导致上述电感L的实际取值略大于理论取值，因此在上述公式中，j取值可以略大于1，以对电感L进行修正，从而计算出更接近真实取值的人体电阻。
当然，例如，本发明实施例的采用的驱动信号可以为变频信号，对应地，上述公式中的Z与Rf均为随驱动信号频率变化的曲线函数。通过人体电阻与不同频率的驱动信号的对应关系，可以确定出更为准确的人体电阻。
作为示例性介绍，假设图3为驱动信号的频率f与人体电阻Rf对应的曲线图形，当驱动信号的频率f在一定范围内进行变化时，会在某一点(图3中的Fr)对应最小取值的人体电阻，本实施例的第二确定单元将曲线函数Rf的最小取值作为用户的人体电阻。
下面对本发明实施例的处理模块结构进行详细介绍。本发明实施例的处理模块可以通过软件、硬件、固件中的一种或任意组合得到，例如，该处理模块可以包括例如中央处理器(CPU)、数据处理器(DSP)等的处理器以及例如非易失性存储器的存储器，存储器中存储用于执行相应操作的程序，例如执行第一确定单元以及第二确定单元的功能的程序。
参考图1和图4，本实施例的触摸装置包括一触控电极层5，该触控电极层包括多个第一触控电极和多个第二触控电极。
例如，处理模块1与每个第一触控电极的链路之间设置有第一多路选择器4。该第一多路选择器4可以选用现有的任何实现多路选择功能的装置或电路，作为处理模块1与各个第一触控电极之间的连接器件，可有选择性地导通其中一个或多个第一触控电极的链路，从而将处理模块输出驱动信号传输至目标第一触控电极。
此外，在处理模块1与第一多路选择器4的链路之间还可以进一步设置有振荡器2，该振荡器2用于对处理模块发送的驱动信号进行变频。
此外，还可以在所振荡器2与第一多路选择器4的链路之间设置第一运算放大电路3，该第一运算放大电路3用于对变频后的驱动信号进行功率放大。
另一方面，本实施例的触摸装置还可以包括第二多路选择器6，其设置在处理模块与触控电极层5的每个第二触控电极的链路之间，该第二多路选 择器6与上述第一多路选择器4一样可以选用现有的具有多路选择功能的装置或电路，作为处理模块1与各个第二触控电极之间的连接器件，可有选择性地导通其中一个或多个第二触控电极的链路，从而将处理模块输出驱动信号传输至目标第二触控电极。
在第二多路选择器6与处理模块1的链路之间，还可以设置有I/V转换电路7，该I/V转换电路7用于将第二多路选择器6向处理模块1发送的感应信号进行电压转换，得到电压性质的信号。
此外，在I/V转换电路7与处理模块1的链路之间，还可以设置有第二运算放大电路8，该第二运算放大电路8用于对电压转换后的感应信号进行功率放大。
此外，在第二运算放大电路8与处理模块1的链路之间，还可以进一步设置有滤波电路9，该滤波电路9用于对功率放大后的感应信号进行滤波降噪，使处理模块获得更准确的结果。本实施例的触摸装置还可以包括模/数(A/D)转换电路或装置，用于将所得到的感应信号从模拟信号转换为数字信号。
本发明实施例的触控装置能够准确地确定用户人体阻值，进而为判断用户的健康状态提供了数据支持。
此外，本发明的另一实施例还提供一种电子设备(如手机、PAD、智能穿戴设备等)，包括有上述的触控装置，其能够根据用户的触控操作，确定用户的人体电阻。
例如，本发明实施例的电子设备还可以包括确定模块，其用于根据用户的人体电阻，确定用户的健康信息。该确定模块可以通过硬件、软件、固件之一或任意组合得到。
作为示例性介绍，本发明实施例的确定模块可以是电子设备的应用程序，基于预先设置的评估算法，将用户的人体电阻转为相应的健康信息。或者，本实施例的确定模块也可以是与服务端连接的交互装置，服务器中存储有预先设置的评估算法，确定模块可以向服务端发送请求，让服务端根据评估算法完成用户健康信息的评估。上述的评估算法例如可以为，基于人体在不同健康状况下的人体电阻不同的原理，可建立人体电阻与健康信息映射关系的数据库，然后根据映射关系实现自动查找的功能，可在此数据库中根据人体 电阻查找出与此对应的健康信息，据此，当确定模块获知人体电阻值后即可，可根据上述算法获得健康信息。
此外，本发明实施例的电子设备还可以包括提示模块，用于向用户提示所述健康信息。该提示模块可以通过硬件、软件、固件之一或任意组合得到。
作为示例性介绍，提示模块可以将确定到的用户的健康信息通过屏幕显示的方式，向用户进行提示；或者将健康信息发送至用户预先指定的邮箱地址，让用户以邮件的方式查知自己的健康状况；或者将健康信息发送至预定应用程序(APP)。
在实际应用中，用户可以通过操作，开启电子设备用于检测人体电阻的功能，此时电子设备的屏幕可以提供一个虚拟的检测区域，该检测区域内对应的第一触控电极即为目标第一触控电极，处理模块只向目标第一触控电极加载驱动信号。
当用户将手指放在检测区域上时，形成检测触控的回路，电子设备的处理模块能够根据回路中的目标第二触控电极接收感应信号，以及向目标第一触控电极加载驱动信号，确定出用户的人体电阻。
在用户手指按压检测区域的过程中，会在某一时刻达到指面最大的皮肤接触面积，此时处理模块确定的人体电阻即对应图3中的Rf。
在确定人体健康信息时，可以将Rf与手指指面在正常情况的电阻值进行比对，进而完成相关诊断。当然，用户可以预先将自己对应的手指指面录入至电子设备，使最终的诊断结果更加准确。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2016年1月4日递交的中国专利申请第201610003973.X号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (13)

  1. 一种触控装置，包括：处理模块、多个第一触控电极和多个第二触控电极；
    其中，在用户进行触控操作时，所述多个第一触控电极中的目标第一触控电极通过用户皮肤与所述多个第二触控电极中的目标第二触控电极形成导通的链路；
    所述处理模块用于向所述目标第一触控电极加载驱动信号，并从所述目标第二触控电极获取感应信号，以及根据所述驱动信号以及所述感应信号之间的电参数变化，确定用户的人体电阻。
  2. 根据权利要求1所述的触控装置，其中，所述处理模块包括：
    第一确定单元，用于根据所述驱动信号的电压值以及所述感应信号的电流值，确定所述目标第一触控电极与所述目标第二触控电极之间的电阻；
    第二确定单元，用于根据公式：
    Figure PCTCN2016104979-appb-100001
    确定用户的人体电阻；
    其中，Rf用户的人体电阻，Z为所述目标第一触控电极与所述目标第二触控电极之间的电阻，j为常数，f为所述处理模块向所述目标第一触控电极加载的驱动信号的频率，L为所述处理模块与所述目标第一触控电极之间的连接链路的电感值，Cf为用户进行触控操作时，皮肤与目标第一触控电极、目标第二触控电极之间形成的耦合电容的电容值。
  3. 根据权利要求2所述的触控装置，其中，
    所述处理模块配置为向所述第一触控电极加载的驱动信号为变频信号，Z与Rf均为曲线函数；
    所述第二确定单元将曲线函数Rf的最小取值作为用户的人体电阻。
  4. 根据权利要求1-3任一项所述的触控装置，还包括：
    第一多路选择器，其设置在所述处理模块与每个第一触控电极的链路之间，用于将所述处理模块的发送驱动信号加载至所述目标第一触控电极。
  5. 根据权利要求4所述的触控装置，还包括：
    振荡器，其设置在所述处理模块与所述第一多路选择器的链路之间，用于对所述处理模块发送的驱动信号进行变频。
  6. 根据权利要求5所述的触控装置，还包括：
    第一运算放大电路，其设置在所述振荡器与第一多路选择器的链路之间，用于对变频后的驱动信号进行功率放大。
  7. 根据权利要求1-3任一项所述的触控装置，还包括：
    第二多路选择器，其设置在所述处理模块与每个第二触控电极的链路之间，用于将所述目标第二触控电极上的感应信号发送至所述处理模块。
  8. 根据权利要求7所述的触控装置，还包括：
    I/V转换电路，其设置在所述第二多路选择器与所述处理模块的链路之间，用于将所述第二多路选择器向所述处理模块发送的感应信号进行电压转换。
  9. 根据权利要求7所述的触控装置，还包括：
    第二运算放大电路，其设置在所述I/V转换电路与所述处理模块的链路之间，用于对电压转换后的感应信号进行功率放大。
  10. 根据权利要求8所述的触控装置，还包括：
    滤波电路，其设置在所述第二运算放大电路与所述处理模块的链路之间，用于对功率放大后的感应信号进行滤波。
  11. 一种电子设备，包括如权利要求1-10任一项所述的触控装置。
  12. 根据权利要求11所述的电子设备，还包括：
    确定模块，配置为根据用户的人体电阻，确定用户的健康信息。
  13. 根据权利要求12所述的电子设备，还包括：
    提示模块，配置为向用户提示所述健康信息。
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