WO2018209858A1 - 一种触控物体的状态识别方法及装置 - Google Patents

一种触控物体的状态识别方法及装置 Download PDF

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Publication number
WO2018209858A1
WO2018209858A1 PCT/CN2017/103258 CN2017103258W WO2018209858A1 WO 2018209858 A1 WO2018209858 A1 WO 2018209858A1 CN 2017103258 W CN2017103258 W CN 2017103258W WO 2018209858 A1 WO2018209858 A1 WO 2018209858A1
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WIPO (PCT)
Prior art keywords
light
touch object
infrared light
touch
orientation
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PCT/CN2017/103258
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English (en)
French (fr)
Inventor
杨起源
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广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2018209858A1 publication Critical patent/WO2018209858A1/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
    • G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
    • 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
    • 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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen

Definitions

  • Embodiments of the present invention relate to the field of infrared touch interaction technologies, and in particular, to a state recognition method and apparatus for a touch object.
  • a module such as a sensor and a wireless transmitter is generally disposed in the smart pen, and when used, the smart pen establishes a connection with the interactive device, and the wireless transmitter will The state of the smart pen detected by the sensor is sent to the interaction device, and the interaction device performs corresponding operations according to the state of the received smart pen.
  • the smart pen must be equipped with sensors, wireless transmitters, and batteries.
  • the cost is high, and when it is used, it must first establish a connection with the interactive device and when the battery is low, it needs to be charged or replaced. The operation is cumbersome and the user is reduced. Experience.
  • the invention provides a method and a device for recognizing a state of a touch object, so as to reduce the cost of recognition, and the recognition method is simple and convenient, and is convenient for the user to operate.
  • an embodiment of the present invention provides a state recognition method for a touch object, and the method package include:
  • the touch object includes a transparent pen tip, and the outer side of the transparent pen tip is provided with two opposite first light shielding bands and two opposite second light shielding tapes, and the first light shielding tape and the second light shielding tape are transparent to light. The rate is different.
  • the embodiment of the present invention further provides a state recognition device for a touch object, the device comprising:
  • a touch detection module configured to emit first infrared light and second infrared light that are perpendicular to each other for touch detection
  • a direction confirmation module configured to confirm an orientation of the touch object according to the received light intensity difference between the first infrared light and the second infrared light
  • the touch object includes a transparent pen tip, and the outer side of the transparent pen tip is provided with two opposite first light shielding bands and two opposite second light shielding tapes, and the first light shielding tape and the second light shielding tape are transparent to light. The rate is different.
  • the invention performs touch detection by emitting first infrared light and second infrared light perpendicular to each other; and confirming the orientation of the touch object according to the difference in light intensity between the received first infrared light and the second infrared light, wherein the touch
  • the object comprises a transparent pen tip, and the outer side of the transparent pen tip is provided with two opposite first light shielding bands and two opposite second light shielding tapes, wherein the first light shielding tape and the second light shielding tape have different light transmittance, the first infrared light and the After the second infrared light passes through the light shielding tape, a change in light intensity occurs, and according to the detected light intensity change, the touch position and the orientation of the touch object can be confirmed, and the state of the touch object can be quickly and easily realized. No, before the state recognition, there is no need to make any settings for the touch object, the operation efficiency is improved, and the cost is low.
  • FIG. 1 is a flowchart of a state recognition method of a touch object according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural view of a touch object according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural view of a transparent pen tip according to Embodiment 1 of the present invention.
  • FIG. 4 is a flowchart of a state recognition method of a touch object according to Embodiment 2 of the present invention.
  • Figure 5 is a schematic view showing the orientation of a transparent pen tip in the second embodiment of the present invention.
  • FIG. 6 is a schematic view showing the orientation of a transparent pen tip in the second embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a state recognition device for a touch object according to Embodiment 1 of the present invention.
  • FIG. 1 is a flowchart of a method for recognizing a state of a touch object according to a first embodiment of the present invention.
  • the embodiment is applicable to a situation in which a state of a touch object needs to be recognized, and the method may be performed by a state of the touch object.
  • the device is implemented by an identification device that can be implemented by software and/or hardware. The method specifically includes the following steps:
  • Step 110 emit first infrared light and second infrared light that are perpendicular to each other for touch detection.
  • the first infrared light and the second infrared light that are perpendicular to each other may be emitted by an infrared transmitting tube disposed in a horizontal direction and a vertical direction.
  • an infrared transmitting tube disposed in a horizontal direction and a vertical direction.
  • a circuit board outer frame is mounted on the touch screen of the touch electronic device, and a dense infrared emitting tube and an infrared receiving tube are arranged on the outer frame of the circuit board, and the infrared object matrix in the horizontal direction and the vertical direction is used to detect and position the touch object.
  • the touch object When the touch object performs a touch operation on the touch screen, the two infrared rays emitted by the infrared transmitting tube in the horizontal direction and the vertical direction of the position are blocked, and the light received by the infrared receiving tube in the horizontal direction and the vertical direction of the position is changed. Strong, you can detect the touch object and determine its touch position.
  • Step 120 Confirm the orientation of the touch object according to the received light intensity difference between the first infrared light and the second infrared light.
  • the state of the touch object includes the orientation of the touch object.
  • the touch object includes a transparent pen tip.
  • the outer side of the transparent pen tip is provided with two opposite first light shielding bands and two opposite second light shielding tapes, and the first light shielding tape and the second light shielding tape have different light transmittances.
  • FIG. 2 is a schematic diagram of an optional touch object according to an embodiment of the present invention.
  • the touch object is composed of a transparent pen 210 and a pen body 220.
  • the transparent pen 210 is made of a transparent material, such as transparent glass or plastic.
  • the outer side of the transparent pen 210 is provided with two opposite first blackouts.
  • the belt and the two opposite light shielding belts have different light transmittances of the first light shielding tape and the second light shielding tape.
  • FIG. 3 is a schematic structural diagram of an optional transparent pen tip according to an embodiment of the present invention.
  • a front view of the transparent pen tip is shown in FIG. 3.
  • the transparent pen tip has a circular shape, and the outer side of the transparent pen tip is divided into four regions, wherein the region between the point P1 and the point P2 and the point P3 and the point
  • the area between P4 constitutes two oppositely disposed first light-shielding bands
  • the area between the point P1 and the point P4 and the area between the point P2 and the point P3 constitute two oppositely disposed second light-shielding bands, and can pass through First light shield and second cover
  • the light strip is covered with different paints so that the light transmittance of the first light shielding strip and the second light shielding strip are different.
  • the first light shielding strip can be used.
  • the upper cover is covered with black paint
  • the second light shield is covered with other color paints that transmit some of the infrared light.
  • the first light-shielding tape may be covered with a thick black paint
  • the second light-shielding tape may be covered with a relatively thin coating.
  • the black paint is such that the light transmittance of the first light shielding tape and the second light shielding tape are different.
  • the shape of the transparent pen tip may be other shapes.
  • the transparent pen tip shape is a rectangle, and the side of the transparent pen tip includes four surfaces of a rectangle, wherein two opposite surfaces constitute a first light shielding tape, and the other two opposite surfaces Forming a second light shielding tape.
  • the first light-shielding tape and the second light-shielding tape based on the transparent pen head have different light transmittances, and when the touch object performs a touch operation, the first infrared light and the second infrared light are emitted perpendicular to each other, and the first infrared light and The second infrared light passes through the transparent pen head, and the light intensity of the first infrared light and the light intensity of the second infrared light received in two directions perpendicular to each other are different, and the touch can be confirmed according to the difference of the received light intensity.
  • the orientation of the object is not limited to the object.
  • the intensity of the first infrared light received and the intensity of the received second infrared light are measured, so that when the touch is detected, according to the received first
  • the difference between the intensity of the infrared light and the intensity of the received second infrared light determines the different orientation of the touch object.
  • the first direction that is, the first first light-shielding strips are vertically opposed to each other when the first light-shielding belt is vertically opposed, and rotated by a predetermined angular interval in the clockwise direction or counterclockwise by the first direction until the rotation
  • the two first light shielding strips are horizontally opposed, in order to be the second direction, ..., the n-1th direction, the nth direction, when rotated by the nth direction at a predetermined angular interval, until the two rotations are repeated again.
  • a light shielding strip is vertically opposed, in order is an n-1th direction, ..., a second direction, and a first direction.
  • the light intensity A1 to An corresponding to the received first infrared light is horizontally
  • the light intensity B1 to Bn of the second infrared light received in the vertical direction when the touch object performs the touch operation, if the light intensity of the first infrared light received in the horizontal direction is in the range of 0-A1 and ⁇ or the intensity of the second infrared light received in the vertical direction is in the range of 0-B1, determining that the orientation of the touch object is the first direction, and if the intensity of the first infrared light received in the horizontal direction is A1-A2
  • the intensity of the second infrared light received in the range and/or the vertical direction is in the range of B1-B2
  • the orientation of the touch object is determined to be the second direction, and so on, if the first infrared light received in the horizontal direction
  • the state of the touch object can be saved in real time, and different operations can be realized according to different states of the touch object.
  • different writing colors can be assigned to the writing track of the touch object according to different orientations of the touch object. If the touch object is oriented in the first direction, black is assigned to the touch object, and if the touch object is oriented in the second direction, The red color is assigned; for example, the operation of recording, playing, pausing, and stopping the video is controlled by different orientations of the touch object, or the operations of zooming in, zooming out, and turning pages of the control page are realized by different orientations of the touch object. Therefore, when the touch operation is performed by the touch object, the user only needs to rotate the touch object to a different orientation, and then can switch to the corresponding operation, which is simple and convenient.
  • the detection of the light intensity can be converted into the detection of other parameters to confirm the orientation of the touch object. If the received light intensity value is converted into a voltage value, the orientation of the touch object is confirmed according to the difference of the received voltage values, thereby identifying the state of the touch object.
  • the embodiment of the present invention performs touch detection by transmitting first infrared light and second infrared light that are perpendicular to each other; and confirming the orientation of the touch object according to the difference in light intensity between the received first infrared light and the second infrared light, wherein
  • the touch object includes a transparent pen tip, and the outer side of the transparent pen tip is provided with two oppositely disposed first shading
  • the belt and the two opposite second shielding strips have different light transmittances, and the first infrared light and the second infrared light pass through the light shielding tape, and the light intensity changes, according to the detection
  • the change of the intensity of the light can confirm the position of the touch and the orientation of the touch object, and the state recognition of the touch object can be quickly and easily realized, and no setting of the touch object is required before the state recognition, thereby improving the operation efficiency, and The cost is lower.
  • FIG. 4 is a flowchart of a method for recognizing a state of a touch object according to Embodiment 2 of the present invention. This embodiment is further optimized based on the foregoing embodiment. The method provided in this embodiment specifically includes the following steps:
  • Step 310 Launch first infrared light and second infrared light perpendicular to each other to perform touch detection.
  • Step 320 Confirm the orientation of the touch object according to the received light intensity difference between the first infrared light and the second infrared light.
  • the touch object includes a transparent pen tip.
  • the outer side of the transparent pen tip is provided with two opposite first light shielding bands and two opposite second light shielding tapes.
  • the first light shielding tape and the second light shielding tape have different light transmittances.
  • the received light intensity of the first infrared light is lower than the received light intensity of the second infrared light, confirm that the touch object faces the first direction; otherwise, confirm that the touch object faces the second direction;
  • the state of the touch object includes the orientation of the touch object, and the touch object orientation includes the first direction and the second direction.
  • FIG. 5 and FIG. 6 are schematic diagrams showing two different orientations of a transparent pen tip according to an embodiment of the present invention.
  • the light transmittance of the first light-shielding tape is lower than the light transmittance of the second light-shielding tape, and the first infrared light and the second infrared light are respectively emitted from the horizontal direction and the vertical direction, and the touch object is touched.
  • the touch object is touched.
  • the first infrared light emitted in the horizontal direction is low in infrared light permeable to the first light-shielding strip.
  • the second infrared light emitted in the vertical direction passes through the infrared light permeable to the second light shielding band, and therefore, the light intensity of the first infrared light received in the horizontal direction is lower than the second infrared light received in the vertical direction
  • the light intensity of the light confirms that the touch object is oriented in the first direction. Otherwise, the area of the first light shielding tape in the horizontal direction is larger than the area of the second light shielding tape, and the orientation of the transparent writing head shown in FIG.
  • the horizontal direction is The intensity of the received first infrared light is higher than the intensity of the second infrared light received in the vertical direction, and confirms that the touch object is oriented in the second direction. Thereby, it is achieved that the orientation of the touch object is confirmed based on the received light intensity difference between the first infrared light and the second infrared light.
  • the touch object may include other directions in addition to the first direction and the second direction.
  • a preset rule change occurs, such as the transparent tip shown in FIG.
  • the light transmittance of the first light shielding tape is lower than the light transmittance of the second light shielding tape, and if the user rotates the touch object 360 degrees clockwise from the reference position within a preset time interval, the preset is preset.
  • the intensity of the first infrared light received in the horizontal direction is lower than the intensity of the second infrared light received in the vertical direction, and the intensity of the first infrared light received in the horizontal direction is higher than
  • the intensity of the second infrared light received in the vertical direction and the intensity of the first infrared light received in the horizontal direction are lower than the intensity of the second infrared light received in the vertical direction, and the orientation of the touch object can be confirmed.
  • the third direction For the third direction.
  • the light transmittance of the first light shielding tape is 0, and the light transmittance of the second light shielding tape is 30-60%.
  • the transmittance of the second light-shielding tape should not be too close to 100%, so that the attenuation of the infrared light transmitted through the second light-shielding tape cannot be detected, so that the light cannot be positioned, and the light can not be positioned too close to the first light-shielding.
  • the light transmittance of the belt so as not to cause the attenuation of the infrared light transmitted through the first light shielding strip and the second light shielding strip Similar, the orientation of the sash (touch object) cannot be recognized.
  • Step 330 Confirm a response mode of the touch track of the touch object according to the orientation of the touch object.
  • the response mode of the touch track to the touch object is confirmed according to different orientations of the touch object, and the conversion of the response mode by different orientations of the touch object is realized.
  • the response mode includes a black mode and a red mode of writing colors.
  • the touch object blocks the infrared light emitted by the infrared emitting tube in the horizontal direction and the vertical direction, and the horizontal direction and the vertical direction.
  • the light intensity received by the corresponding infrared receiving tube is changed, thereby detecting the touch position of the touch object, and the orientation of the touch object is recognized by the difference in light intensity received by the corresponding infrared receiving tube in the horizontal direction and the vertical direction. If the touch object is oriented in the first direction, the writing color of the touch track of the touch object is black, and if the touch object is oriented in the second direction, the writing color of the touch track of the touch object is red.
  • the response mode includes a writing mode and an erasing mode. If the touch object is oriented in the first direction, the response mode to the touch track is the writing mode. If the touch object is oriented in the second direction, the response mode to the touch track is the erase mode.
  • the user only needs to rotate the touch object to different orientations to realize the switching of the response mode, which is convenient and quick, and does not need to set the touch object or connect with the electronic device before use, and operate. Simple, improve the user experience.
  • the orientation of the touch object can be quickly confirmed, and the touch track of the touch object is confirmed according to the orientation of the touch object.
  • the response mode in which the user only needs to rotate the touch object, can realize the conversion mode of the touch track of the touch object, and the operation is simple, the user is convenient to operate, and the user experience is improved.
  • FIG. 7 is a schematic structural diagram of a state recognition device for a touch object according to Embodiment 3 of the present invention.
  • the device includes: a touch detection module 410 and an orientation confirmation module 420, where
  • the touch detection module 410 is configured to emit first infrared light and second infrared light that are perpendicular to each other for touch detection;
  • the orientation confirmation module 420 is configured to confirm the orientation of the touch object according to the received light intensity difference between the first infrared light and the second infrared light;
  • the touch object includes a transparent pen tip, and the outer side of the transparent pen tip is provided with two opposite first light shielding bands and two opposite second light shielding tapes, and the first light shielding tape and the second light shielding tape are transparent to light. The rate is different.
  • the method further includes: a response confirmation module, configured to confirm a response mode of the touch track of the touch object according to the orientation of the touch object.
  • the orientation confirmation module is specifically configured to:
  • the received light intensity of the first infrared light is lower than the received light intensity of the second infrared light, confirm that the touch object faces the first direction; otherwise, confirm that the touch object faces the second direction.
  • the response mode includes a writing mode and an erasing mode.
  • the light transmittance of the first light shielding tape is 0, and the light transmittance of the second light shielding tape is 30-60%.
  • the foregoing apparatus can perform the methods provided in Embodiment 1 and Embodiment 2 of the present invention, and has the corresponding functional modules and beneficial effects of performing the foregoing methods.
  • the foregoing apparatus can perform the methods provided in Embodiment 1 and Embodiment 2 of the present invention, and has the corresponding functional modules and beneficial effects of performing the foregoing methods.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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Abstract

本发明公开了一种触控物体的状态识别方法及装置。该方法包括：发射互相垂直的第一红外光和第二红外光以进行触控检测；根据接收到的所述第一红外光和第二红外光的光强差异确认所述触控物体的朝向；所述触控物体包括透明笔头，所述透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，所述第一遮光带和第二遮光带的透光率不同。本发明提供的方法在第一红外光和第二红外光穿过遮光带之后会发生光强的变化，根据检测到的光强变化可以确认触控位置以及触控物体的朝向，可快速简便地实现对触控物体的状态识别，在进行状态识别前，无需对触控物体做任何设置，提高操作效率，且成本较低。

Description

一种触控物体的状态识别方法及装置 技术领域
本发明实施例涉及红外触摸交互技术领域，尤其涉及一种触控物体的状态识别方法及装置。
背景技术
随着电子设备技术的发展，具有触摸功能的电子设备得到普及。其中，具有触摸功能的人机交互设备，如电子白板，在教学和会议等场景中得到广泛的应用。
目前的交互系统中，为了更加方便的对交互设备进行操作，一般是通过在智能笔中设置有传感器和无线发射器等模块，在使用时，智能笔与交互设备建立连接，通过无线发射器将传感器检测到的智能笔的状态发送至交互设备，交互设备根据接收到的智能笔的状态进行相应的操作。
然而，智能笔必须安装传感器、无线发射器和电池等，成本较高，且在使用时，必须先与交互设备建立连接以及在电量较低时，需进行充电或更换电池，操作繁琐，降低用户体验。
发明内容
本发明提供一种触控物体的状态识别方法及装置，以实现降低识别的成本，且该识别方法简单方便，便于用户操作。
第一方面，本发明实施例提供了一种触控物体的状态识别方法，该方法包 括：
发射互相垂直的第一红外光和第二红外光以进行触控检测；
根据接收到的所述第一红外光和第二红外光的光强差异确认所述触控物体的朝向；
所述触控物体包括透明笔头，所述透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，所述第一遮光带和第二遮光带的透光率不同。
第二方面，本发明实施例还提供了一种触控物体的状态识别装置，该装置包括：
触控检测模块，用于发射互相垂直的第一红外光和第二红外光以进行触控检测；
朝向确认模块，用于根据接收到的所述第一红外光和第二红外光的光强差异确认所述触控物体的朝向；
所述触控物体包括透明笔头，所述透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，所述第一遮光带和第二遮光带的透光率不同。
本发明通过发射互相垂直的第一红外光和第二红外光以进行触控检测；根据接收到的第一红外光和第二红外光的光强差异确认触控物体的朝向，其中，触控物体包括透明笔头，透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，第一遮光带和第二遮光带的透光率不同，第一红外光和第二红外光穿过遮光带之后会发生光强的变化，根据检测到的光强变化可以确认触控位置以及触控物体的朝向，可快速简便地实现对触控物体的状态识 别，在进行状态识别前，无需对触控物体做任何设置，提高操作效率，且成本较低。
附图说明
图1是本发明实施例一中的一种触控物体的状态识别方法的流程图；
图2是本发明实施例一中的触控物体的结构示意图；
图3是本发明实施例一中的透明笔头的结构示意图；
图4是本发明实施例二中的一种触控物体的状态识别方法的流程图；
图5是本发明实施例二中的透明笔头的朝向示意图；
图6是本发明实施例二中的透明笔头的朝向示意图；
图7是本发明实施例一中的一种触控物体的状态识别装置的结构框图。
具体实施方式
下面结合附图和实施例对本发明作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本发明，而非对本发明的限定。另外还需要说明的是，为了便于描述，附图中仅示出了与本发明相关的部分而非全部结构。
实施例一
图1为本发明实施例一提供的一种触控物体的状态识别方法的流程图，本实施例可适用于需对触控物体的状态进行识别的情况，该方法可以由触控物体的状态识别装置来执行，该装置可由软件和/或硬件实现。该方法具体包括如下步骤：
步骤110、发射互相垂直的第一红外光和第二红外光以进行触控检测。
示例性的，互相垂直的第一红外光和第二红外光可由水平方向和竖直方向上设置的红外发射管发射。如在触摸电子设备的触摸屏上装有电路板外框，在电路板外框上装有密布的红外发射管与红外接收管，通过水平方向和竖直方向上密布的红外线矩阵来检测并定位触控物体。当触控物体在触摸屏上进行触控操作，会阻挡该位置的水平方向和竖直方向上红外发射管发射的两条红外线，改变该位置的水平方向和竖直方向上红外接收管接收的光强，则可检测到触控物体并确定其触控位置。
步骤120、根据接收到的第一红外光和第二红外光的光强差异确认触控物体的朝向。
其中，触控物体的状态包括触控物体的朝向。
触控物体包括透明笔头，透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，第一遮光带和第二遮光带的透光率不同。
图2为本发明实施例提供的一种可选的触控物体的示意图。参见图2，触控物体由透明笔头210和笔身220构成，其中透明笔头210由透明的材质构成，如透明的玻璃、塑料等，透明笔头210的外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，第一遮光带和第二遮光带的透光率不同。
图3为本发明实施例提供的一种可选的透明笔头的结构示意图。参见图3，图3中所示为透明笔头的正视图，透明笔头的形状为圆形，将透明笔头的外侧分成四个区域，其中，点P1与点P2之间的区域以及点P3与点P4之间的区域构成两条相对设置的第一遮光带，点P1与点P4之间的区域以及点P2与点P3之间的区域构成两条相对设置的第二遮光带，且可通过在第一遮光带与第二遮 光带上覆盖有不同的涂料使得第一遮光带和第二遮光带的透光率不同，如若第一遮光带的透光率大于第二遮光带的透光率，则可在第一遮光带上覆盖有黑色涂料，第二遮光带上覆盖有可透过部分红外光的其他颜色涂料，又如可在第一遮光带上覆盖有较厚的黑色涂料，第二遮光带上覆盖有较稀疏的黑色涂料，从而使第一遮光带与第二遮光带的透光率不同。
可选的，透明笔头的形状可为其他形状，如透明笔头形状为矩形，则透明笔头的侧面包括矩形的四个表面，其中两个对立的表面构成第一遮光带，另外两个对立的表面构成第二遮光带。
基于透明笔头的第一遮光带与第二遮光带具有不同的透光率，则触控物体进行触控操作时，发射互相垂直的第一红外光和第二红外光后，第一红外光和第二红外光经过透明笔头，互相垂直的两个方向上接收到的第一红外光的光强和第二红外光的光强则不同，根据接收到的光强的差异，即可确认触控物体的朝向。
示例性的，可通过统计触控物体在不同朝向时，接收到的第一红外光的光强与接收到的第二红外光的光强，从而在触控检测时，根据接收到的第一红外光的光强与接收到的第二红外光的光强的差异确定触控物体的不同朝向。如以图3所示的位置为第一方向，即两条第一遮光带竖直相对时为第一方向，当由第一方向依次沿顺时针或逆时针以预设角度间隔旋转，直至旋转至两条第一遮光带为水平相对，依次为第二方向，…，第n-1方向，第n方向，当由第n方向依次以预设角度间隔旋转时，直至再次旋转至两条第一遮光带竖直相对，依次为第n-1方向，…，第二方向，第一方向。则分别统计触控物体的朝向为第一方向至第n方向时，水平方向上对应接收到的第一红外光的光强A1至An， 以及竖直方向上接收到的第二红外光的光强B1至Bn，则在触控物体进行触控操作时，若水平方向接收到的第一红外光的光强为0-A1范围内和\或竖直方向接收到的第二红外光的光强为0-B1范围内，确定触控物体的朝向为第一方向，若水平方向接收到的第一红外光的光强为A1-A2范围内和\或竖直方向接收到的第二红外光的光强为B1-B2范围内，确定触控物体的朝向为第二方向，以此类推，若水平方向接收到的第一红外光的光强为An-1-An范围内和\或竖直方向接收到的第二红外光的光强为Bn-1-Bn范围内，确定触控物体的朝向为第n方向。由此实现，触控物体状态的识别。
识别触控物体的状态后，可实时保存触控物体的状态，进而根据触控物体的不同状态实现不同的操作。如可根据触控物体的不同朝向为触控物体的书写轨迹分配不同的书写颜色，如若触控物体朝向为第一方向，则为其分配黑色，若触控物体朝向为第二方向，则为其分配红色；又如通过触控物体的不同朝向实现控制视频的录制、播放、暂停和停止等操作，或通过触控物体的不同朝向实现控制页面的放大、缩小和翻页等操作。由此，用户通过触控物体进行触控操作时，仅需旋转触控物体到不同的朝向，即可转换到其对应的操作，简单方便。
需要说明的是，本领域技术人员可以理解的是，可将光强的检测转换为其他参数的检测以确认触控物体的朝向。如将接收到光强值转换为电压值，从而根据接收到的电压值差异确认触控物体的朝向，进而识别触控物体的状态。
本发明实施例通过发射互相垂直的第一红外光和第二红外光以进行触控检测；根据接收到的第一红外光和第二红外光的光强差异确认触控物体的朝向，其中，触控物体包括透明笔头，透明笔头外侧设置有两条相对设置的第一遮光 带和两条相对设置的第二遮光带，第一遮光带和第二遮光带的透光率不同，第一红外光和第二红外光穿过遮光带之后会发生光强的变化，根据检测到的光强变化可以确认触控位置以及触控物体的朝向，可快速简便地实现对触控物体的状态识别，在进行状态识别前，无需对触控物体做任何设置，提高操作效率，且成本较低。
实施例二
图4为本发明实施例二提供的一种触控物体的状态识别方法的流程图，本实施例为在上述实施例的基础上进一步优化。本实施例提供的方法，具体包括如下步骤：
步骤310、发射互相垂直的第一红外光和第二红外光以进行触控检测。
步骤320、根据接收到的第一红外光和第二红外光的光强差异确认触控物体的朝向。
其中，触控物体包括透明笔头，透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，第一遮光带和第二遮光带的透光率不同。
优选的，若接收到的第一红外光的光强低于接收到的第二红外光的光强，则确认触控物体朝向第一方向；否则确认触控物体朝向第二方向；
其中，触控物体的状态包括触控物体朝向，触控物体朝向包括第一方向和第二方向。
图5和图6为本发明实施例提供的透明笔头的两种不同朝向示意图。示例性的，第一遮光带的透光率低于第二遮光带的透光率，第一红外光和第二红外光分别从水平方向和竖直方向上发射，当触控物体进行触控操作时，若水平方 向上第一遮光带的面积大于第二遮光带的面积，以图5所示的透明笔头的朝向为例，则水平方向上发射的第一红外光经过第一遮光带可透过的红外光低于竖直方向上发射的第二红外光经过第二遮光带可透过的红外光，因此，水平方向上接收到的第一红外光的光强低于竖直方向上接收到的第二红外光的光强，确认触控物体朝向为第一方向，否则，水平方向上第一遮光带的面积大于第二遮光带的面积，以图6所示的透明笔头的朝向为例，则水平方向上接收的第一红外光的光强高于竖直方向上接收的第二红外光的光强，确认触控物体朝向为第二方向。由此，实现根据接收到的第一红外光和第二红外光的光强差异确认触控物体的朝向。
需要说明的是，触控物体朝向除第一方向和第二方向外还可包括其他方向。示例性的，若在预设时间间隔内，检测到接收到的第一红外光和接收到的第二红外光的光强差异发生预设规则的改变，如以图6所示的透明笔头的朝向为参考位置，第一遮光带的透光率低于第二遮光带的透光率，若在预设时间间隔内，用户将触控物体从参考位置顺时针旋转360度，则在预设时间间隔内，可依次检测到水平方向接收到的第一红外光的光强低于竖直方向接收到的第二红外光的光强、水平方向接收到的第一红外光的光强高于竖直方向接收到的第二红外光的光强、以及水平方向接收到的第一红外光的光强低于竖直方向接收到的第二红外光的光强，则可确认触控物体朝向为第三方向。
优选的，第一遮光带的透光率为0，第二遮光带的透光率为30-60％。为实现触控位置的精确检测，第二遮光带的透光率不能过于接近100％，以免透过第二遮光带的红外光的衰减无法检测，从而不能定位；同时也不能过于接近第一遮光带的透光率，以免导致透过第一遮光带和第二遮光带的红外光的衰减程度 相近，无法识别遮光带(触控物体)的朝向。
步骤330、根据触控物体的朝向确认对触控物体的触控轨迹的响应模式。
优选的，识别触控物体的朝向后，根据触控物体的不同朝向确认对触控物体的触控轨迹的响应模式，实现通过触控物体的不同朝向控制响应模式的转换。
示例性的，响应模式包括书写颜色的黑色模式和红色模式。如用户通过触控物体在电子白板或平板等电子设备上的触摸屏上进行触控操作时，则触控物体阻挡水平方向和竖直方向上红外发射管发射的红外光，水平方向和竖直方向上对应的红外接收管接收的光强发生改变，从而检测到触控物体的触控位置，同时通过水平方向和竖直方向上对应的红外接收管接收的光强差异识别出触控物体的朝向，若触控物体朝向为第一方向，则触控物体的触控轨迹的书写颜色为黑色，若触控物体朝向为第二方向，则触控物体的触控轨迹的书写颜色为红色。
优选的，响应模式包括书写模式和擦除模式。如若触控物体朝向为第一方向，则对触控轨迹的响应模式为书写模式，若触控物体朝向为第二方向，则对触控轨迹的响应模式为擦除模式。在教学或会议场景中，用户仅需旋转触控物体至不同朝向，即可实现响应模式的切换，方便快捷，且在使用前无需将触控物体进行设置或与电子设备进行连接等操作，操作简单，提高用户体验。
本发明实施例通过根据接收到的第一红外光的光强和第二红外光的光强差异，可快速确认触控物体朝向，并根据触控物体的朝向确认对触控物体的触控轨迹的响应模式，进而用户仅需旋转触控物体，即可实现对触控物体的触控轨迹的响应模式的转换，操作简单，方便用户操作，提高用户体验。
实施例三
图7为本发明实施例三提供的一种触控物体的状态识别装置的结构示意图。参见图7，该装置包括：触控检测模块410和朝向确认模块420，其中，
触控检测模块410，用于发射互相垂直的第一红外光和第二红外光以进行触控检测；
朝向确认模块420，用于根据接收到的所述第一红外光和第二红外光的光强差异确认所述触控物体的朝向；
所述触控物体包括透明笔头，所述透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，所述第一遮光带和第二遮光带的透光率不同。
上述方案中，可选的是，还包括：响应确认模块，用于根据所述触控物体的朝向确认对所述触控物体的触控轨迹的响应模式。
上述方案中，可选的是，所述朝向确认模块，具体用于：
若接收到的所述第一红外光的光强低于接收到的第二红外光的光强，则确认所述触控物体朝向第一方向；否则确认所述触控物体朝向第二方向。
上述方案中，可选的是，所述响应模式包括书写模式和擦除模式。
上述方案中，可选的是，所述第一遮光带的透光率为0，所述第二遮光带的透光率为30-60％。
上述装置可执行本发明实施例一和实施例二所提供的方法，具备执行上述方法相应的功能模块和有益效果。未在本实施例中详尽描述的技术细节，可参见本发明实施例一和实施例二所提供的方法。
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种触控物体的状态识别方法，其特征在于，包括：
    发射互相垂直的第一红外光和第二红外光以进行触控检测；
    根据接收到的所述第一红外光和第二红外光的光强差异确认所述触控物体的朝向；
    所述触控物体包括透明笔头，所述透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，所述第一遮光带和第二遮光带的透光率不同。
  2. 根据权利要求1所述的方法，其特征在于，所述根据接收到的所述第一红外光和第二红外光的光强差异确认所述触控物体的朝向之后，还包括：
    根据所述触控物体的朝向确认对所述触控物体的触控轨迹的响应模式。
  3. 根据权利要求1所述的方法，其特征在于，所述根据接收到的所述第一红外光和第二红外光的光强差异确认所述触控物体的朝向，具体为：
    若接收到的所述第一红外光的光强低于接收到的第二红外光的光强，则确认所述触控物体朝向第一方向；否则确认所述触控物体朝向第二方向。
  4. 根据权利要求2所述的方法，其特征在于，所述响应模式包括书写模式和擦除模式。
  5. 根据权利要求1所述的方法，其特征在于，所述第一遮光带的透光率为0，所述第二遮光带的透光率为30-60％。
  6. 一种触控物体的状态识别装置，其特征在于，包括：
    触控检测模块，用于发射互相垂直的第一红外光和第二红外光以进行触控检测；
    朝向确认模块，用于根据接收到的所述第一红外光和第二红外光的光强差 异确认所述触控物体的朝向；
    所述触控物体包括透明笔头，所述透明笔头外侧设置有两条相对设置的第一遮光带和两条相对设置的第二遮光带，所述第一遮光带和第二遮光带的透光率不同。
  7. 根据权利要求6所述的装置，其特征在于，还包括：响应确认模块，用于根据所述触控物体的朝向确认对所述触控物体的触控轨迹的响应模式。
  8. 根据权利要求6所述的装置，其特征在于，所述朝向确认模块，具体用于：
    若接收到的所述第一红外光的光强低于接收到的第二红外光的光强，则确认所述触控物体朝向第一方向；否则确认所述触控物体朝向第二方向。
  9. 根据权利要求7所述的装置，其特征在于，所述响应模式包括书写模式和擦除模式。
  10. 根据权利要求6所述的装置，其特征在于，所述第一遮光带的透光率为0，所述第二遮光带的透光率为30-60％。
PCT/CN2017/103258 2017-05-19 2017-09-25 一种触控物体的状态识别方法及装置 WO2018209858A1 (zh)

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