WO2014094559A1 - 触击位置和触击能量的测量方法及显示装置 - Google Patents

触击位置和触击能量的测量方法及显示装置 Download PDF

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Publication number
WO2014094559A1
WO2014094559A1 PCT/CN2013/088951 CN2013088951W WO2014094559A1 WO 2014094559 A1 WO2014094559 A1 WO 2014094559A1 CN 2013088951 W CN2013088951 W CN 2013088951W WO 2014094559 A1 WO2014094559 A1 WO 2014094559A1
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Prior art keywords
touch
energy
sensor
grid
signal
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PCT/CN2013/088951
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English (en)
French (fr)
Inventor
杜朝亮
姜丽丽
卿新林
Original Assignee
Du Chaoliang
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Publication date
Application filed by Du Chaoliang filed Critical Du Chaoliang
Priority to US14/650,106 priority Critical patent/US9733747B2/en
Priority to EP13866317.4A priority patent/EP2937770A4/en
Priority to JP2015548169A priority patent/JP6043880B2/ja
Publication of WO2014094559A1 publication Critical patent/WO2014094559A1/zh

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Classifications

    • 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
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • 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
    • G06F3/0412Digitisers structurally integrated in a display
    • 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
    • G06F3/04142Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position the force sensing means being located peripherally, e.g. disposed at the corners or at the side of a touch sensing plate
    • 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
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • 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
    • G06F2203/041012.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
    • 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
    • G06F2203/04104Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • 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
    • G06F2203/04105Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position

Definitions

  • the present invention relates to an input and output device of an electronic system, and more particularly to a measuring method and a display device for a touch position and a striking energy.
  • BACKGROUND OF THE INVENTION Touch devices have become the preferred configuration for current human-computer interactive electronic products because of their simple and fast operation. From industry to home, from office to entertainment. While pursuing accuracy, stability, convenience and speed, people have put forward more expectations and requirements for touch devices, such as further reducing prices, reducing energy consumption, and increasing the energy or strength of the touch.
  • touch measurement technologies including resistive, capacitive, infrared, surface acoustic, electromagnetic, near-field imaging.
  • These touch measurement techniques are very sensitive to the sensing of the touch position, but they have two common disadvantages: 1.
  • the energy or force of the touch cannot be sensed; 2.
  • the touch sensing area is increased, the touch sensing device is activated.
  • the cost will increase significantly.
  • the sensor can only sense the energy or strength in the vicinity, so it is necessary to set more sensors to form a group.
  • the group can cover the entire touch screen, which will increase the cost, complexity and power consumption of the device; 2.
  • an embodiment of the present invention provides a method for measuring a touch position.
  • Two or more sensors are dispersedly disposed under a sensing panel of a touch device, and the sensing panel is divided into a plurality of meshes, with a given
  • the reference energy strikes all the grids one by one, and obtains the energy distribution vector of the reference signal unit of each grid.
  • the unit energy distribution vector of the corresponding touch signal is calculated according to the signal energy detected by the sensor, and It compares with the reference signal unit energy distribution vector of each grid to determine the mesh number of the tap, so that the touch position can be given.
  • the embodiment of the invention further provides a method for measuring the striking energy, comprising: under the sensing panel of the touch device A sensor is provided to divide the sensing panel into a plurality of grids, and all grids are tapped one by one with a given reference energy to obtain the reference signal energy detected by the sensor when each grid is tapped.
  • a sensor is provided to divide the sensing panel into a plurality of grids, and all grids are tapped one by one with a given reference energy to obtain the reference signal energy detected by the sensor when each grid is tapped.
  • the sensor When sensing the energy of a touch, first use the sensor to obtain the current signal energy, and then obtain the location of the touch by the above-mentioned touch position measurement method or other touch position measurement methods, such as capacitance method, infrared method, surface acoustic wave method, and the like. Finally, the reference signal energy of the previously measured touch position is compared with the current signal energy to calculate the strike energy.
  • An embodiment of the present invention further provides a display device, including: a display element; a sensing panel disposed above the display element; and two or more sensors disposed on a lower surface of the sensing panel; dividing the sensing panel into A number of grids, each of which is tapped with a given reference energy to obtain a reference signal unit energy distribution vector for each grid.
  • a touch is sensed, the corresponding touch is calculated based on the signal energy detected by the sensor.
  • the signal unit energy distribution vector is compared to the reference signal unit energy distribution vector of each grid to determine the grid number at which the tap is located, which in turn gives the location of the strike.
  • An embodiment of the present invention further provides a display device, including: a display element; a sensing panel disposed above the display element; and a sensor disposed on a lower surface of the sensing panel; dividing the sensing panel into a plurality of grids, Touch all grids one by one with a given reference energy to obtain the reference signal energy detected by the sensor when tapping each grid.
  • a display device including: a display element; a sensing panel disposed above the display element; and a sensor disposed on a lower surface of the sensing panel; dividing the sensing panel into a plurality of grids, Touch all grids one by one with a given reference energy to obtain the reference signal energy detected by the sensor when tapping each grid.
  • the sensor When sensing the energy of a touch, first use the sensor to obtain the current signal energy, and then obtain the location of the touch by the above-mentioned touch position measurement method or other touch position measurement methods, such as capacitance method, infrared method, surface acoustic wave method, and the like
  • the measuring method and the display device of the touch position and the striking energy of the present invention have the following advantages: 1.
  • the touch position measurement of the present invention is performed by placing two or more sensors under the sensing device of the touch device to receive the touch point.
  • the shock wave coming, using the principle of sound wave propagation, by comparing the unit energy distribution vector of the strike signal with the unit energy distribution vector of the reference signal to determine the touch position, can greatly reduce the production cost of the touch device and reduce the complexity of the system;
  • the method for measuring the striking energy of the present invention changes the method for detecting the striking energy of a group sensor such as an array sensor in the conventional technology, which can greatly reduce the number of required sensors, thereby reducing the cost and complexity of the touch device. Energy consumption.
  • FIG. 1 is a schematic diagram showing the principle of a method for measuring a touch position according to an embodiment of the present invention
  • FIG. 2 is a schematic view of a single electronic musical instrument using the measuring method of the touch position of the present invention
  • 3 is a schematic view of a multi-electronic musical instrument using the measuring method of the touch position of the present invention
  • 4 is a schematic diagram of a tablet computer using the measuring method of the touch position of the present invention
  • Figure 5 is a schematic view of an automatic sensing target using the measuring method of the touch position of the present invention.
  • FIG. 6 is a schematic diagram of a robot sensing system using a measuring method of a touch position of the present invention
  • FIG. 7 is a schematic structural view of a display device using a measuring method of a touch position of the present invention.
  • FIG. 8 is a schematic diagram showing the principle of measuring a striking energy according to an embodiment of the present invention.
  • Fig. 9 is a view showing the configuration of a display device using the measuring method of the striking energy of the present invention.
  • Embodiments of the present invention provide a method for measuring a touch position, including: dispersing two or more sensors under a sensing panel of a touch device, and dividing the sensing panel into a plurality of meshes, with a given The reference energy strikes all the grids one by one, and obtains the energy distribution vector of the reference signal unit of each grid.
  • the unit energy distribution vector of the corresponding touch signal is calculated according to the signal energy detected by the sensor, and It compares with the reference signal unit energy distribution vector of each grid to determine the mesh number of the tap, so that the touch position can be given.
  • the signal energy recorded by the device that is, the signal energy as the denominator, can select the signal energy detected by any sensor.
  • the signal energy as the denominator in the equation and the signal energy as the denominator in step 3) should be detected by the same sensor.
  • the comparison algorithm may be a correlation coefficient method, a standard variance method, a covariance method, an angle cosine method, a Minkowsky distance method, a Camberra distance method, a maximum difference coefficient method, and a relative error distance method.
  • the touch position can be detected by the above method, and the touch position measurement of the present invention receives the shock wave transmitted at the touch point by placing two or more sensors under the touch panel of the touch device, and uses the principle of sound wave propagation.
  • the production cost of the touch device can be greatly reduced, and the complexity of the system can be reduced.
  • the strike energy can be further calculated by adopting the following method: After obtaining the touch position in the mesh X, the strike energy E is obtained by the following formula:
  • E the striking energy of the current strike
  • E Represents the given reference energy
  • E the given reference energy
  • the reference signal energy generated by the touch grid X detected by the sensor of the serial number m indicates the signal energy detected by the sensor of the serial number m under the current strike of the mesh X
  • a, b is set in one embodiment, when measuring the touch position and the striking energy, that is, when inductively striking, each sensor can Tmn
  • E m restaurant is the signal energy recorded by the sensor m when the grid n is touched, and the amplitude of the signal waveform recorded by the sensor m when the grid n is touched, T m consult is the signal waveform detected by the sensor m The amplitude is greater than a given noise threshold.
  • T m s is a sensor to detect when the m signal waveform amplitude is less than a given time value is determined attenuation is ⁇ ⁇ .
  • each sensor may also calculate the detected letter by measuring the touch position and the strike energy, that is, during the inductive touch:
  • a multi-electronic instrument with a perception panel Based on the above technology, the sensing panel is divided into a plurality of regions to simulate a plurality of different musical instruments, such as cymbals, cymbals, and drums, and the present invention recognizes that the location of the hit belongs to a certain region and then calls the signal processor. The vocal characteristics of the instrument represented by the area, which in turn simulates the instrument.
  • the multi-electronic instrument sensing panel can be composed of one person or multiple people to form an orchestra.
  • a game console with a touch panel such as a tablet.
  • the operation of the game is achieved by the present invention inducing the position and energy of the hit by the game controller.
  • different energy hits can be used to control the different positions of the perception panel to simulate the hitting of the characters in the game.
  • the target is automatically sensed.
  • the sensor is placed under the shooting target panel, and the sensor is connected to the signal processor. After the signal processor analyzes the calculated result, it is transmitted to the shooting scoreboard to display it.
  • the machine with the hit sensor If a robot sensing system is equipped with sensors, The sensor is connected to the control center of the robot. The control center is provided with a signal processor to calculate and analyze the information collected by the sensor. The control center controls the robot power device to make the robot according to the analysis result of the signal processor, such as the position and strength of the hit. Different actions.
  • the sensing panel may be a flat panel, a curved panel, or other form of panel.
  • the sensing panel can be made of metal, glass, plastic, wood, leather or composite material.
  • the senor may be a piezoelectric sensor, a resistive sensor, a fiber optic sensor, or other deformation measuring sensor.
  • the present invention further provides a display device capable of realizing the measurement of the touch position of the above embodiment, as shown in FIG. 7, comprising: a display element 10; a perception disposed above the display element 10. The panel 20; and two or more sensors 30 disposed on the lower surface of the sensing panel 20.
  • the perception panel into a number of grids, and tap all the grids one by one with a given reference energy to obtain a reference signal unit energy distribution vector for each grid.
  • the signal energy detected by the sensor is Calculate the corresponding energy distribution vector of the touch signal, compare it with the reference signal unit energy distribution vector of each grid, and determine the mesh number of the strike, and then give the touch position.
  • the display device may be a mobile phone with a sensor panel, a tablet computer, a notebook, a computer display, a liquid crystal television, or the like.
  • the embodiment of the present invention further provides another method for measuring the striking energy, as described in FIG. 8 , including: A sensor is disposed under the sensing panel, and the sensing panel is divided into a plurality of grids, and all grids are tapped one by one with a given reference energy to obtain a reference signal energy detected by the sensor when each grid is touched .
  • the touch position is obtained by the position sensing system, and the sensor detects that the current signal energy is E m assuming that it is located in the m grid ;
  • . Represents a given reference energy, expressed at a given reference energy.
  • the reference signal energy of the mesh m detected by the sensor indicates the signal energy of the mesh m detected by the sensor under the current touch
  • a, b are the set experience coefficients.
  • the values of a, b are determined experimentally, and the values of the different touch panels may be different. In general, when a is 1 and b is 0, the error of the detected energy is basically controllable. Within 10%. When the touch panel is large (the plane size is 40 inches or more), a can be 1.1 and b is 0.001.
  • the touch position when a touch is measured, can be obtained by any position sensing system, including: using a resistive type, a capacitive type, an infrared type, a surface acoustic wave type, an electromagnetic type, an optical type, or a near field imaging type.
  • the position measuring method obtains the touch position or obtains the touch position according to the method described in the foregoing embodiments of the present invention.
  • the touch position is obtained by the method according to the foregoing embodiment of the present invention, it is necessary to use two or more sensors to obtain the touch position, if the existing resistive type, capacitive type, infrared type, surface acoustic wave type, electromagnetic type are used. For optical or near-field imaging type position measurement methods, it is not necessary to provide an additional sensor under the sensing panel of the touch device to obtain the touch position.
  • Capacitive touch screen technology uses the current sensing of the human body to work.
  • the capacitive touch screen is a four-layer composite glass screen.
  • the inner surface and the interlayer of the glass screen are coated with a layer of ⁇ , the outermost layer is a thin layer of silica glass protective layer, and the interlayer ITO coating is used as the working surface, and the four corners are taken out.
  • the inner layer of ITO is a shielding layer to ensure a good working environment.
  • This current flows out from the electrodes on the four corners of the touch screen, and the current flowing through the four electrodes is proportional to the distance from the finger to the four corners.
  • the controller calculates the position of the touch point by accurately calculating the ratio of the four currents. .
  • the infrared touch screen is composed of infrared emitting and receiving sensing elements mounted on the outer frame of the touch screen. On the surface of the screen, an infrared detecting net is formed, and any touch object can change the infrared rays on the contacts to realize the touch screen operation.
  • the infrared line touch screen is implemented in a similar way to surface acoustic wave touch, using infrared emission and reception sensing elements. These components form an infrared detection net on the surface of the screen, and an object (such as a finger) that is touch-operated can change the infrared rays of the electric shock, and is converted into a coordinate position of the touch to achieve an operational response.
  • the circuit board device arranged on the four sides of the screen has an infrared transmitting tube and an infrared receiving tube, corresponding to forming an infrared matrix that crosses vertically and vertically.
  • the sensing panel is one of a flat panel and a curved panel.
  • the sensing panel is made of metal, glass, plastic, wood, composite or leather.
  • the present invention further provides a display device, as shown in FIG. 9, comprising: a display element 10'; a sensing panel 20' disposed above the display element 10'; and the sensing panel 20 'One sensor 30' provided on the lower surface.
  • a display device as shown in FIG. 9, comprising: a display element 10'; a sensing panel 20' disposed above the display element 10'; and the sensing panel 20 'One sensor 30' provided on the lower surface.
  • the touch position is obtained by the position sensing system, and the sensor detects that the current signal energy is E m assuming that it is located in the m grid ;
  • . Represents a given reference energy, expressed at a given reference energy.
  • the reference signal energy of the mesh m detected by the sensor indicates the signal energy of the mesh m detected by the sensor under the current touch
  • a, b are the set experience coefficients.
  • the values of a, b are determined experimentally, and the values of the different touch panels may be different. In general, when a is 1 and b is 0, the error of the detected energy can be controlled within 10%. When the touch panel is large (the plane size is 40 inches or more), a can be 1.1 and b is 0.01 to improve the accuracy of the detection energy.
  • the display device may be a mobile phone with a sensor panel, a tablet computer, a notebook, a computer display, a liquid crystal television, or the like.
  • the present invention has the following advantages due to the above technical solution: 1.
  • the touch position measurement of the present invention receives the shock wave transmitted at the touch point by placing two or more sensors under the sensing device of the touch device, and utilizes the principle of sound wave propagation. By comparing the striking signal unit energy distribution vector with the reference signal unit energy distribution vector to determine the striking position, the production cost of the touch device can be greatly reduced, and the complexity of the system can be reduced. 2.
  • the measuring method of the striking energy of the present invention is changed. In the conventional technology, a method of setting a group sensor such as an array sensor to sense the striking energy can greatly reduce the number of required sensors, thereby reducing the cost, complexity, and energy consumption of the touch device.
  • the present invention can be applied to various devices having a sensing panel such as a tablet computer, a smart phone, a service terminal, a game control panel, a shooting target, an electronic musical instrument, and the like.

Abstract

本发明公开触击位置及触击能量的测量方法,以及显示装置。测量触击位置时,在触控设备的感知面板下分散设置二个以上的传感器,将感知面板划分成若干网格,通过对比触击的当前信号单位能量分布向量与每个网格的基准信号单位能量分布向量,即确定触击位置。测量触击能量时,在感知面板下布置一个以上的传感器,将感知面板划分为若干网格,通过上述触击位置测量方法或者其他触击位置测量方法获得触击位置,将当前信号能量与该触击位置对应的网格的基准信号能量进行对比,即可计算出触击能量。本发明可大大降低触控设备的成本,降低系统的复杂性和能耗。

Description

触击位置和触击能量的测量方法及显示装置 技术领域 本发明涉及电子系统的输入和输出设备, 更具体的, 涉及触击位置和触击能量的测 量方法及显示装置。 背景技术 触控设备因其操作简单快捷的特点已成为当前人机互动类电子产品的首选配置, 从 工业到家庭, 从办公到娱乐到处可见其身影。 人们在追求准确稳定, 方便快捷的同时, 也对触控设备提出了更多的期望和要求, 如进一步降低价格, 降低能耗, 增加触击的能 量或力度的感应等。
目前市场上有多种类型的触击测量技术, 包括电阻型、 电容型、 红外线型、 表面声 波型、 电磁型、 近场成像型等。 这些触击测量技术对于触击位置的感应非常灵敏, 但它 们有两个共同的缺点: 1、 无法感应触击的能量或力度; 2、 当触击感应区域增大时, 触 击感应装置的成本会显著地增加。 对于无法感应力度的问题, 现在主要通过分布在触摸 屏下的传感器来解决上述问题, 但它有几大缺点: 1、 传感器只能感应其附近的能量或力 度, 因此需要设置较多的传感器构成群组才能覆盖整个触摸屏, 这样就会增加设备的成 本、 复杂性和耗电量; 2、 传感器与手指触击之间还隔着一些结构 (如玻璃) , 手指触击 的能量或力度经这些结构分散后才被传感器感应到, 因此精度不高。
而对于成本高的问题, 目前还没有很好的解决方案。 发明内容 为了解决以上问题, 本发明实施例提出一种触击位置的测量方法, 在触控设备的感 知面板下分散设置二个以上的传感器, 将感知面板划分成若干网格, 用给定的基准能量 逐一触击所有的网格, 获取每个网格的基准信号单位能量分布向量, 当感应一次触击 时, 根据传感器检测到的信号能量, 计算相应的触击信号单位能量分布向量, 将其与每 个网格的基准信号单位能量分布向量进行比较, 确定触击所在的网格序号, 从而可给出 触击位置。
本发明实施例还提供了一种触击能量的测量方法, 包括: 在触控设备的感知面板下 设置一个传感器, 将感知面板划分成若干网格, 用给定的基准能量逐一触击所有网格, 获取触击每个网格时所述传感器检测到的基准信号能量。 当感应一次触击的能量时, 首 先利用传感器获得当前信号能量, 然后通过上述触击位置测量方法或者其他触击位置测 量方法, 如电容法、 红外线法、 表面声波法等, 获得触击的位置, 最后再将此前测得的 该触击位置的基准信号能量与当前信号能量进行对比, 即可计算出触击能量。
本发明实施例还提供了一种显示装置, 包括: 显示元件; 布置在所述显示元件上方 的感知面板; 以及位于所述感知面板下表面分散设置的二个以上的传感器; 将感知面板 划分成若干网格, 用给定的基准能量逐一触击所有的网格, 获取每个网格的基准信号单 位能量分布向量, 当感应一次触击时, 根据传感器检测到的信号能量, 计算相应的触击 信号单位能量分布向量, 将其与每个网格的基准信号单位能量分布向量进行比较, 从而 确定触击所在的网格序号, 继而可给出触击的位置。
本发明实施例还提供了一种显示装置, 包括: 显示元件; 布置在所述显示元件上方 的感知面板; 以及位于所述感知面板下表面设置的一个传感器; 将感知面板划分成若干 网格, 用给定的基准能量逐一触击所有网格, 获取触击每个网格时所述传感器检测到的 基准信号能量。 当感应一次触击的能量时, 首先利用传感器获得当前信号能量, 然后通 过上述触击位置测量方法或者其他触击位置测量方法, 如电容法、 红外线法、 表面声波 法等, 获得触击的位置, 最后再将此前测得的该触击位置的基准信号能量与当前信号能 量进行对比, 即可计算出触击能量。
本发明的触击位置和触击能量的测量方法及显示装置, 具有以下优点: 1、 本发明触 击位置测量通过在触控设备感知面板下布放二个以上的传感器接收触击点处传来的冲击 波, 利用声波传播原理, 通过比较触击信号单位能量分布向量与基准信号单位能量分布 向量确定触击位置的方法, 可大大降低触控设备的生产成本, 降低系统的复杂性; 2、 本 发明触击能量的测量方法改变了传统技术中需要设置阵列式传感器等群组传感器感应触 击能量的方法, 可以大大减少所需传感器的数量, 进而减小触控设备的成本、 复杂性和 能耗。 附图说明 图 1为本发明实施例的触击位置的测量方法的原理示意图;
图 2为运用本发明的触击位置的测量方法的单电子乐器示意图;
图 3为运用本发明的触击位置的测量方法的多电子乐器示意图; 图 4为运用本发明的触击位置的测量方法的平板电脑示意图;
图 5为运用本发明的触击位置的测量方法的自动感应靶示意图;
图 6为运用本发明的触击位置的测量方法的机器人感应系统示意图;
图 7为运用本发明的触击位置的测量方法的显示装置的结构示意图;
图 8为本发明实施例的触击能量的测量方法的原理示意图;
图 9为运用本发明的触击能量的测量方法的显示装置的结构示意图。 具体实施方式 本发明实施例提供了一种触击位置的测量方法, 其包括: 在触控设备的感知面板下 分散设置二个以上的传感器, 将感知面板划分成若干网格, 用给定的基准能量逐一触击 所有的网格, 获取每个网格的基准信号单位能量分布向量, 当感应一次触击时, 根据传 感器检测到的信号能量, 计算相应的触击信号单位能量分布向量, 将其与每个网格的基 准信号单位能量分布向量进行比较, 确定触击所在的网格序号, 从而可给出触击位置。
下面以带有触摸屏的触控设备为例, 结合附图对本发明的触击位置的测量方法进行 详细描述。
如图 1 所示, 触控设备触摸屏下分散设置有四个传感器, 传感器序号记为 m, m=l, 2, 3 当人的手指或其他物体触击触摸屏一点时, 在触击点处将会产生冲击 波。 冲击波沿着触摸屏向各个方向传播, 位于触摸屏下的四个传感器随之检测到相应的 冲击波信号。 对于不会导致触摸屏产生永久变形或损伤的触击而言, 触击可视为低速冲 击。 低速冲击使得触摸屏只产生弹性变形。 当触击位置与传感器之间的距离保持不变 时, 触击能量与传感器所检测到的冲击波信号能量成正比。
具体实施步骤如下:
1 ) 将感知面板的触击感应区 (如图 1所示触摸屏的内矩形区域) 根据使用精度的需 要, 按照适当的长度 (如 5mm) 划分成若干网格, 并标以序号 n,n=l, 2, 3... (如图 1 中所示的网格 1到网格 9, 数量不限于此) 。
2) 以给定的基准能量 E。逐一触击步骤 1 ) 所划分的网格, 并记录触击每个网格时各 传感器所检测到的信号能量 0^„, „, 作为每个网格各自的基准能量分布向
3 ) 基于步骤 2) 每个网格各自的基准能量分布向量0^„,^„, 3°„,..., „), 计算每个 网格的基准信号单位能量分布向量 ^ : 其中, 在计算单位能量分布向量时, 可以除以任何传感
Figure imgf000006_0001
器所记录到的信号能量, 即作为分母的信号能量可选择任一传感器检测到的信号能量。
4 ) 在感应一次触击时, 假设该触击位于一未知网格 Υ 内。 各传感器检测到信号能 量为(E1Y,E2Y,E3Y,...,EmY ), 计算相应的触击信号单位能量分布向量 :
Figure imgf000006_0002
此处需要注意的是, 该算式中作为分母的信号能量与步骤 3 ) 中的作为分母的信号 能量, 应该是同一传感器所检测到的。
5 ) 用比较算法将步骤 4) 的触击信号单位能量分布向量 与步骤 3 ) 所有网格的基 准信号单位能量分布向量 进行比较, 当 γ最接近于某一网格 X的基准信号单位能量 分布向量时, 表明触击位置就位于网格 X内, 即 Υ的值为 X。 在本实施例中, 所述的比 较算法可以是相关系数法、 标准方差法、 协方差法、 夹角余弦法、 Minkowsky距离法、 Camberra距离法、 最大相异系数法、 相对误差距离法中的一种。
通过以上的方法就可以检测到触击位置, 并且, 本发明触击位置测量通过在触控设 备感知面板下布放二个以上的传感器接收触击点处传来的冲击波, 利用声波传播原理, 通过比较触击信号单位能量分布向量与基准信号单位能量分布向量确定触击位置的方 法, 可大大降低触控设备的生产成本, 降低系统的复杂性。
在通过上述方法得到触击位置后, 还可以进一步计算得到触击能量, 其采用的方法 为: 在得到所述触击位置位于网格 X内后, 通过下式获得触击能量 E :
E = a ' E。 ' + bm= 1, 2, 3··· ; 其中, 为当前触击的触击能量, E。表示给定的基准能量, E 为在给定的基准能 量 E。触击下, 序号为 m的传感器所检测到的触击网格 X产生的基准信号能量, 表 示在对网格 X的当前触击下, 序号为 m的传感器所检测到的信号能量, a, b为设定的 在一实施例中, 在测量触击位置和触击能量时, 即在感应触击时, 各个传感器可以 Tmn
Emn― J* Smn (t)dt;
Tmn
其中, Em„为触击网格 n时, 传感器 m所记录的信号能量, 为触击网格 n时, 传感器 m所记录的信号波形振幅, Tm„是传感器 m检测到的当信号波形幅值大于某一给 定的噪声临界值 。 ;时的时间值; Tm s„是传感器 m检测到的当信号波形幅值小于某一给定 的衰减判别值^ ^的时间值。
在另一实施例中, 在测量触击位置和触击能量时, 即在感应触击时, 各个传感器还 可以通过以下算法计算检测到的信 :
Figure imgf000007_0001
其中, E皿为触击网格 n时, 传感器 m所记录的信号能量, Λ™( )是触击网格 η 时, 传感器 m所记录的第 k次采样的波信号幅值, 是触击波的采样起始点, 2是触 击波的采样终结点。
上述实施例仅为本发明的应用示例, 绝不仅限于电子设备的触摸屏, 它还可用于下 述领域:
1 ) 如图 2所示, 带有感知面板的单电子乐器。 在击打设备感知面板上布置传感器感 应击打的位置和能量, 传感器与信号处理器连接, 然后通过音响设备发出与用同样能量 击打真实乐器同样位置发出的相同或类似的声音。
2) 如图 3所示, 带有感知面板的多电子乐器。 在上述技术的基础上, 将该感知面板 划分出多个区域模拟多个不同的乐器, 如锣、 钹和鼓, 以本发明识别出击打的位置属于 某个区域之后用信号处理器调出该区域所代表的乐器的发声特点, 进而模拟出该乐器。 多电子乐器感知面板可以由一个人操作或多人操作组成一个乐团。
3 ) 如图 4所示, 带有触控面板的游戏机, 如平板电脑。 通过本发明感应对游戏控制 器击打的位置和能量来实现对游戏的操作。 比如可以不同的能量击打控制感知面板的不 同位置来模拟对游戏中角色的击打。
4) 如图 5所示, 自动感应靶。 在射击靶面板下布置传感器, 传感器与信号处理器连 接, 信号处理器分析计算出结果后, 传给射击成绩计分牌显示出来。 应用该发明, 可以 准确快速地感应出射击点的位置和力度, 实现自动射击评估。
5 ) 如图 6所示, 带有击打感应器的机器设备。 如一机器人感应系统布置有传感器, 传感器与机器人的控制中枢连接, 控制中枢里设置有信号处理器对传感器采集的信息进 行计算分析, 控制中枢根据信号处理器的分析结果, 如受击打位置和力度, 控制机器人 动力设备使机器人做出不同的动作。
在本实施例中, 感知面板可以是平面面板、 曲面面板或其他形式面板。
在本实施例中, 感知面板可以采用金属、 玻璃、 塑料、 木板、 皮革或复合材料制 成。
在本实施例中, 传感器可以是压电传感器、 电阻传感器、 光纤传感器或其他变形测 量传感器。
对应于上述实施例, 本发明还提供一种显示装置, 可以实现上述实施例的触击位置 的测量, 如图 7所示, 其包括: 显示元件 10; 布置在所述显示元件 10上方的感知面板 20; 以及位于所述感知面板 20下表面分散设置的二个以上的传感器 30。
将感知面板划分成若干网格, 用给定的基准能量逐一触击所有的网格, 获取每个网 格的基准信号单位能量分布向量, 当感应一次触击时, 根据传感器检测到的信号能量, 计算相应的触击信号单位能量分布向量, 将其与每个网格的基准信号单位能量分布向量 进行比较, 从而确定触击所在的网格序号, 继而可给出触击位置。
在本实施例中, 所述显示装置可以为带有感知面板的手机、 平板电脑、 笔记本、 电 脑显示器、 液晶电视等。
除了利用前述实施例所揭示的获取触击位置进而获得触击能量的方法外, 本发明实 施例还提供另一种测量触击能量的方法, 如图 8所述, 包括: 在触控设备的感知面板下 设置一个传感器, 将感知面板划分成若干网格, 用给定的基准能量 逐一触击所有网 格, 获取触击每个网格时所述传感器检测到的基准信号能量 „Q
当一次触击时, 通过位置感应系统获取触击位置, 假定位于 m网格, 所述传感器检 测到当前的信号能量为 Em ;
根据以下算法计算此次触击的触击能量 E:
E
E a . ΕΓ ·— + b;
0 E° 其中, 。表示给定的基准能量, 表示在给定的基准能量 。触击下, 传感器所检 测到的网格 m的基准信号能量, 表示当前触击下, 传感器所检测到的网格 m的信号 能量, a, b为设定的经验系数。 在该实施例中, a, b的值由实验确定, 不同的触控面板 其取值会有一定的差别。 一般而言, 当取 a为 1, b为 0时, 检测能量的误差基本可控制 在 10%以内。 当触控面板较大时 (平面尺寸在 40寸以上) , 可取 a为 1.1, b为 0.001
(焦耳) , 以提高检测能量的精度。
在本实施例中, 当测量一次触击时, 可以通过任意位置感应系统获取触击位置, 包 括: 利用电阻型、 电容型、 红外线型、 表面声波型、 电磁型、 光学型或者近场成像型的 位置测量方法获得所述触击位置或者根据本发明前述实施例所述的方法获得所述触击位 置。
如果根据本发明前述实施例所述的方法获得触击位置, 就需要利用两个以上的传感 器来获得触击位置, 如果采用现有的电阻型、 电容型、 红外线型、 表面声波型、 电磁 型、 光学型或者近场成像型的位置测量方法, 则不需要在触控设备的感知面板下设置额 外的传感器来获得触击位置。
电容式触摸屏技术是利用人体的电流感应进行工作的。 电容式触摸屏是一块四层复 合玻璃屏, 玻璃屏的内表面和夹层各涂有一层 ιτο, 最外层是一薄层硅土玻璃保护层, 夹层 ITO涂层作为工作面, 四个角上引出四个电极, 内层 ITO为屏蔽层以保证良好的工 作环境。 当手指触摸在金属层上时, 由于人体电场, 用户和触摸屏表面形成以一个耦合 电容, 对于高频电流来说, 电容是直接导体, 于是手指从接触点吸走一个很小的电流。 这个电流分别从触摸屏的四角上的电极中流出, 并且流经这四个电极的电流与手指到四 角的距离成正比, 控制器通过对这四个电流比例的精确计算, 得出触摸点的位置。
红外线触摸屏由装在触摸屏外框上的红外线发射与接收感测元件构成, 在屏幕表面 上, 形成红外线探测网, 任何触摸物体可改变触点上的红外线而实现触摸屏操作。 红外 线式触控屏的实现原理与表面声波式触控相似, 它使用的是红外线发射与接收感测元 件。 这些元件在屏幕表面形成红外线探测网, 触控操作的物体 (比如手指) 可以改变触 电的红外线, 进而被转化成触控的坐标位置而实现操作的响应。 在红外线式触控屏上, 屏幕的四边排布的电路板装置有红外发射管和红外接收管, 对应形成横竖交叉的红外线 矩阵。
在本实施例中, 所述感知面板是平面面板和曲面面板中的一种。
在本实施例中, 所述感知面板采用金属、 玻璃、 塑料、 木板、 复合材料或皮革制 成。
对应于上述实施例, 本发明还提供一种显示装置, 如图 9所示, 包括: 显示元件 10'; 布置在所述显示元件 10'上方的感知面板 20' ; 以及位于所述感知面板 20'下表面设 置的一个传感器 30'。 将感知面板划分成若干网格, 用给定的基准能量 逐一触击所有网格, 获取触击每 个网格时所述传感器检测到的基准信号能量 „Q
当一次触击时, 通过位置感应系统获取触击位置, 假定位于 m网格, 所述传感器检 测到当前的信号能量为 Em ;
根据以下算法计算此次触击的触击能量 E:
E
E a . ΕΓ ·— + b;
0 E° 其中, 。表示给定的基准能量, 表示在给定的基准能量 。触击下, 传感器所检 测到的网格 m的基准信号能量, 表示当前触击下, 传感器所检测到的网格 m的信号 能量, a, b为设定的经验系数。 在该实施例中, a, b的值由实验确定, 不同的触控面板 其取值会有一定的差别。 一般而言, 当取 a为 1, b为 0时, 检测能量的误差基本可控制 在 10%以内。 当触控面板较大时 (平面尺寸在 40寸以上) , 可取 a为 1.1, b为 0.01, 以提高检测能量的精度。
在本实施例中, 所述显示装置可以为带有感知面板的手机、 平板电脑、 笔记本、 电 脑显示器、 液晶电视等。
本发明由于采取以上技术方案, 具有以下优点: 1、 本发明触击位置测量通过在触控 设备感知面板下布放二个以上的传感器接收触击点处传来的冲击波, 利用声波传播原 理, 通过比较触击信号单位能量分布向量与基准信号单位能量分布向量确定触击位置的 方法, 可大大降低触控设备的生产成本, 降低系统的复杂性; 2、 本发明触击能量的测量 方法改变了传统技术中需要设置阵列式传感器等群组传感器感应触击能量的方法, 可以 大大减少所需传感器的数量, 进而减小触控设备的成本、 复杂性和能耗。 本发明可以用 于具有感知面板的各种设备, 如平板电脑、 智能手机, 服务终端, 游戏控制面板、 射击 靶、 电子乐器等。

Claims

权利要求书
1、 一种触击位置的测量方法, 其特征在于, 在触控设备的感知面板下分散设置二个 以上的传感器, 将感知面板划分成若干网格, 用给定的基准能量逐一触击所有的网格, 获取每个网格的基准信号单位能量分布向量, 当感应一次触击时, 根据传感器检测到的 信号能量, 计算相应的触击信号单位能量分布向量, 将其与每个网格的基准信号单位能 量分布向量进行比较, 确定触击所在的网格序号, 从而确定触击位置。
2、 根据权利要求 1所述的触击位置的测量方法, 其特征在于, 包括以下步骤:
1) 在触控设备感知面板下分散设置二个以上的传感器, 并标以序号 m, m=l, 2,
3...;
2) 将感知面板的触击感应区根据使用精度的需要划分成若干网格, 并标以序号 n, n=l, 2, 3...;
3) 以给定的基准能量 E。逐一触击步骤 2) 所划分的网格, 并记录触击每个网格时各 传感器所检测到的信号能量 (E^E^E^, ..., „), 作为每个网格各自的基准能量分布向 4) 基于步骤 3) 每个网格各自的基准能量分布向量0£1 ()„,£2°„,£3 ()„,...,^„), 计算每个 网格的基准信号单位能量分布向量 : _
Figure imgf000011_0001
5) 在感应一次触击时, 假设该触击位于一未知网格 Υ 内, 各传感器检测到信号能 量为 (E1Y,E2Y,E3Y"..,EmY), 计算相应的触击信号单位能量分布向量 : γ =(1» , ···, ) ;
6) 用比较算法将步骤 5) 的触击信号单位能量分布向量^与步骤 4) 里所有网格的 基准信号单位能量分布向量 进行比较, 当^最接近于某一网格 X的基准信号单位能 量分布向量时, 表明触击位于网格 X内, 即 Υ的值为 X。
3、 根据权利要求 2所述的触击位置的测量方法, 其特征在于, 在计算单位能量分布 向量时, 作为分母的信号能量可选择任一传感器检测到的信号能量, 但是步骤 4) 和步 骤 5) 中选择的作为分母的信号能量应选择同一传感器所检测到的。
4、 根据权利要求 2所述的触击位置的测量方法, 其特征在于, 在得到所述触击位置 位于网格 X内后, 通过下式获得触击能量 E:
E 二 α · Ε。; + b m=1, 2, 3...; 其中, 为当前触击的触击能量, ^表示给定的基准能量, E^为在给定的基准能 量 E。触击下, 序号为 m的传感器所检测到的触击网格 X产生的基准信号能量, 表 示在对网格 X的当前触击下, 序号为 m的传感器所检测到的信号能量, a, b为设定的 经验系数。
5、 根据权利要求 2所述的触击位置的测量方法, 其特征在于, 在感应触击时, 各个 传感器通过以下算法计算检测到的信号能量: E = JJs2 (t)dt;, 其中, E皿为触击网格 η时, 传感器 m所记录的信号能量, 为触击网格 n时, 传感器 m所记录的信号波形振幅, Tm„是传感器 m检测到的当信号波形幅值大于某一给 定的噪声临界值 。 ;时的时间值; Tm s„是传感器 m检测到的当信号波形幅值小于某一给定 的衰减判别值 „的时间值。
6、 根据权利要求 2所述的触击位置的测量方法, 其特征在于, 在感应触击时, 各个 传感器通过以下算法计算检测到的信号能量:
k=k2
Emn _〉: ^ mn (^) » 其中, E皿为触击网格 n时, 传感器 m所记录的信号能量, 是触击网格 n 时, 传感器 m所记录的第 k次采样的波信号幅值, 是触击波的采样起始点, 2是触 击波的采样终结点。
7、 根据权利要求 1所述的触击位置的测量方法, 其特征在于, 所述触控设备是触摸 屏显示器、 触击操作板、 带有感知面板的电子乐器、 带有触控面板的游戏机、 自动感应 靶或带有击打感应器的机器设备中的一种。
8、 根据权利要求 1所述的触击位置的测量方法, 其特征在于, 所述的感知面板是平 面面板和曲面面板中的一种。
9、 根据权利要求 1所述的触击位置的测量方法, 其特征在于, 所述感知面板采用金 属、 玻璃、 塑料、 木板、 复合材料或皮革制成。
10、 根据权利要求 1所述的触击位置的测量方法, 其特征在于, 所述传感器是压电 传感器、 电阻传感器和光纤传感器中的一种。
11、 根据权利要求 2所述的触击位置的测量方法, 其特征在于, 所述的比较算法是 相关系数法、 标准方差法、 协方差法、 夹角余弦法、 Minkowsky距离法、 Camberra距离 法、 最大相异系数法、 相对误差距离法中的一种。
12、 一种触击能量的测量方法, 其特征在于, 所述方法包括:
在触控设备的感知面板下设置一个传感器, 将感知面板划分成若干网格, 用给定的 基准能量 逐一触击所有网格, 获取触击每个网格时所述传感器检测到的基准信号能量 En。;
当一次触击时, 通过位置感应系统获取触击位置, 假定位于 m网格, 所述传感器检 测到当前的信号能量为 Em ;
根据以下算法计算此次触击的触击能量 E:
E
E = α · Εη ·— + b;
0 E0
其中, 。表示给定的基准能量, 表示在给定的基准能量 。触击下, 传感器所检 测到的网格 m的基准信号能量, 表示当前触击下, 传感器所检测到的网格 m的信号 能量, a, b为设定的经验系数。
13、 根据权利要求 12所述的触击能量的测量方法, 其特征在于, 当测量一次触击 时, 通过位置感应系统获取触击位置, 包括:
在所述触控设备的感知面板下分散设置二个以上的传感器, 将感知面板划分成若干 网格, 用给定的基准能量逐一触击所有的网格, 获取每个网格的基准信号单位能量分布 向量, 当感应一次触击时, 根据传感器检测到的信号能量, 计算相应的触击信号单位能 量分布向量, 将其与每个网格的基准信号单位能量分布向量进行比较, 确定触击所在的 网格序号, 从而确定触击位置。
14、 根据权利要求 12所述的触击能量的测量方法, 其特征在于, 当一次触击时, 通 过位置感应系统获取触击位置, 包括:
利用电阻型、 电容型、 红外线型、 表面声波型、 电磁型、 光学型或者近场成像型的 位置测量方法获得所述触击位置。
15、 根据权利要求 12所述的触击能量的测量方法, 其特征在于, 所述感知面板是平 面面板和曲面面板中的一种。
16、 根据权利要求 12所述的触击能量的测量方法, 其特征在于, 所述感知面板采用 金属、 玻璃、 塑料、 木板、 复合材料或皮革制成。
17、 一种显示装置, 其特征在于, 包括:
显示元件;
布置在所述显示元件上方的感知面板; 以及
位于所述感知面板下表面分散设置的二个以上的传感器;
将感知面板划分成若干网格, 用给定的基准能量逐一触击所有的网格, 获取每个网 格的基准信号单位能量分布向量, 当感应一次触击时, 根据传感器检测到的信号能量, 计算相应的触击信号单位能量分布向量, 将其与每个网格的基准信号单位能量分布向量 进行比较, 从而确定触击所在的网格序号, 进而确定触击的位置。
18、 根据权利要求 17所述的显示装置, 其特征在于, 所述显示装置为带有感知面板 的手机、 平板电脑、 笔记本、 电脑显示器、 液晶电视。
19、 一种显示装置, 其特征在于, 所述显示装置包括:
显示元件;
布置在所述显示元件上方的感知面板; 以及
位于所述感知面板下表面设置的一个传感器;
将感知面板划分成若干网格, 用给定的基准能量 逐一触击所有网格, 获取触击每 个网格时所述传感器检测到的基准信号能量 „Q
当一次触击时, 通过位置感应系统获取触击位置, 假定位于 m网格, 所述传感器检 测到当前的信号能量为 Em ;
根据以下算法计算此次触击的触击能量 E:
E
E a . ΕΓ ·— - + b;
0 E° 其中, 表示给定的基准能量, 表示在给定的基准能量 触击下, 传感器所检 测到的网格 m的基准信号能量, 表示当前触击下, 传感器所检测到的网格 m的信号 能量, a, b为设定的经验系数。
20、 根据权利要求 19所述的显示装置, 其特征在于, 所述显示装置为带有感知面板 的手机、 平板电脑、 笔记本、 电脑显示器、 液晶电视。
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EP2937770A1 (en) 2015-10-28
CN103076914B (zh) 2015-10-28
JP6043880B2 (ja) 2016-12-14
CN103076914A (zh) 2013-05-01
JP2016506571A (ja) 2016-03-03
US9733747B2 (en) 2017-08-15
US20150317027A1 (en) 2015-11-05

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