CN102722240A - Text information input system, handwriting input device and text information input method - Google Patents

Text information input system, handwriting input device and text information input method Download PDF

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CN102722240A
CN102722240A CN2012101553224A CN201210155322A CN102722240A CN 102722240 A CN102722240 A CN 102722240A CN 2012101553224 A CN2012101553224 A CN 2012101553224A CN 201210155322 A CN201210155322 A CN 201210155322A CN 102722240 A CN102722240 A CN 102722240A
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information
signal
text
micro
input
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CN2012101553224A
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Chinese (zh)
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徐军帅
王新安
申凌
程如中
赵勇
郭中洋
闫桂珍
魏益群
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北京大学深圳研究生院
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Priority to CN2012101553224A priority patent/CN102722240A/en
Publication of CN102722240A publication Critical patent/CN102722240A/en

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Abstract

The invention discloses a text information input system, a handwriting input device and a text information input method, wherein the system includes: a micro electromechanical system sensor for sensing action information of writing text of a user and outputting corresponding signals according to the action information, the signals including original space vector group data which reflect the action information, the original space vector group data including spatial position information, direction information and writing time information of an action; and a recognition processor for receiving and analyzing signals of the micro electromechanical system sensor and mapping the signals into inputted text. The text information input system, the handwriting input device and the text information input method in the invention, sensing a hand action through the sensor, can not only replace other information input methods in a certain range, but also can enable a handheld device or a computer to be more human-friendly and promote innovation of a novel man-machine interaction mode.

Description

一种文字信息输入系统、手写输入设备及方法 A character information input system, a handwriting input apparatus and method

技术领域 FIELD

[0001] 本申请涉及一种输入装置,尤其涉及一种文字信息输入系统及方法。 [0001] The present application relates to an input device, particularly to a character information input system and method.

背景技术 Background technique

[0002] 传统的文字信息输入系统,例如计算机和手持终端(如手机),通常是利用键盘或触摸屏等电子元件来接收使用者的输入,并编译成相关的信号,由计算机或手持终端的显示屏进行显示,从而实现了手写或键盘的文字、数字及命令输入等。 [0002] traditional text information input system, such as computers and handheld terminals (such as mobile phones), typically using a keyboard or touch screen and other electronic components to receive input from a user, and compiled into a signal related to the display by a computer or the handheld terminal screen display, enabling handwritten text or keyboard, and digital command input and so on.

[0003] 无论键盘还是触摸屏,通常都是与电脑主机或手持终端相结合,在进行输入时,使用者的眼睛需要时刻盯住键盘或屏幕进行输入,无法让使用者眼睛从键盘或触摸屏上解放出来。 [0003] Whether a keyboard or touch screen, usually in combination with a host computer or handheld terminal, during input, the user's eyes need to always stare at a screen or keyboard input, the user can not make eye liberation from the keyboard or touch screen come out. 同时这种传统的文字信息输入技术都不可避免地将使用者局限于计算机或手持终端的显示屏之前。 While the character information input such conventional technologies inevitably limited before the user terminal or a handheld computer display.

[0004] 为此,目前已有研发人员致力于研究可以在各种场合和空间内随意进行信息输入的系统,但很多都是基于视觉下的图像处理,需要复杂的算法。 [0004] To this end, there are researchers working on the system can be free to enter information in a variety of occasions and space, but a lot of image processing in the visual is based, require complex algorithms.

发明内容 SUMMARY

[0005] 本申请提供一种文字信息输入系统及方法,能够在任何场合下实现无屏文字信息输入,丰富使用者的书写体验。 [0005] The present application provides a system and method for text message input, can be achieved without the input screen text information in any situation, rich user writing experience.

[0006] 根据本申请的一个方面,提供一种文字信息输入系统,包括:、[0007] 微机电系统传感器,用于感应使用者书写文字的动作信息,根据动作信息输出相应的信号,所述信号包括反映动作信息的原始空间矢量组数据,所述原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息; [0006] In accordance with one aspect of the present disclosure, there is provided a character information input system, comprising: a, [0007] MEMS sensors, for sensing the user operation information written word, a corresponding output signal based on the operation information, the spatial signal comprising the original set of data reflecting the motion vector information, the original spatial space vector set of data includes the operation of the position information, direction information, and time information is written;

[0008] 识别处理器,用于接收与分析所述微机电系统传感器的信号,将所述信号映射为输入的文字。 [0008] The recognition processor for receiving a signal from the MEMS sensor analysis, mapping the text input signal.

[0009] 所述识别处理器包括:接收模块,用于接收所述微机电系统传感器的信号;矢量生成模块,用于将接收到的信号生成为可识别的矢量图文字图形;匹配模块,用于匹配所述矢量图文字图形,将其转换为文字信息。 [0009] The recognition processor comprising: a receiving module for receiving a signal of the MEMS sensor; vector generation module, for converting the received signal generated as a vector pattern recognizable character; matching module, with the vector to the matching character pattern, which is converted to text information.

[0010] 所述微机电系统传感器安装在能够佩带在使用者的手指上的设备或手持终端上。 [0010] The MEMS sensor is mounted can be worn on the user's finger or hand held terminal device. 所述文字包括中文、和/或日文、和/或英文、和/或数字、和/或符号。 The Chinese character includes, and / or Japanese and / or English, and / or numbers and / or symbols.

[0011] 根据本申请的另一个方面,提供一种文字信息输入方法,包括: [0011] According to another aspect of the present disclosure, there is provided a character information input method, comprising:

[0012] 使用微机电系统传感器感应使用者书写文字的动作信息,根据动作信息输出相应的信号,所述信号包括反映动作信息的原始空间矢量组数据,所述原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息; [0012] using a microelectromechanical system sensor senses the user operation information written word, based on the operation information corresponding to the output signal, the original signal space vector includes a set of data reflecting the operation information, the original set of data includes the operation space vector space position information, direction information, and time information is written;

[0013] 分析所述信号并将所述信号映射为输入的文字。 [0013] Analysis of the signal and the signal mapped to the text input.

[0014] 所述的方法还包括:通过在不同的时间限度内设置不同的动作次序来实现与书写文字相关的操控命令。 [0014] The method further comprises: to achieve the written word associated with the control command in order to set different actions in different time limits.

[0015] 所述根据动作信息输出相应的信号包括:所述微机电系统传感器初始化一个坐标系,并根据动作信息测量使用者书写文字时的运动加速度和角速度,计算得到使用者书写文字的原始空间矢量组数据,原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息,还可以进一步包括使用者书写文字的动作力度。 [0015] According to the operation information corresponding to the output signal comprises: initializing the MEMS sensor coordinate system, and the motion acceleration and the angular velocity when writing text, a user written word is calculated according to the user operation information measuring original spatial vector set of data, the original spatial position vector set of data includes the operation of spatial information, direction information, and time information is written, the user may further comprise written text movement dynamics.

[0016] 所述分析所述信号并将所述信号映射为输入的文字包括:分析所述原始空间矢量组数据,生成可识别的矢量图文字图形,匹配所述矢量图文字图形,将其转换为文字信息。 [0016] The analysis of the signal and the signal mapped to the character input comprises: analyzing the original set of spatial vector data to generate character pattern recognizable vector, the vector character pattern matching, convert as a text message.

[0017] 所述文字包括中文、和/或日文、和/或英文、和/或数字、和/或符号。 The [0017] Chinese characters include, and / or Japanese and / or English, and / or numbers and / or symbols.

[0018] 本申请还公开了一种手写输入设备,包括载体和微机电系统传感器,所述微机电系统传感器附着在载体上,所述微机电系统传感器用于感应使用者书写文字的动作信息,根据动作信息输出相应的信号,所述信号包括反映动作信息的原始空间矢量组数据,所述原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息。 [0018] The present application also discloses a handwriting input apparatus, comprising a support and a MEMS sensor, the MEMS sensor is attached to the carrier, the MEMS sensors for sensing the user operation information written word, the operation information corresponding to the output signal, the original signal space vector includes a set of data reflecting the operation information, the original spatial space vector set of data includes the operation of the position information, direction information, and time information is written.

[0019] 一种实施例中,所述载体为可佩带在使用者手指上的指环或手持终端,所述微机电系统传感器安装在指环、特殊结构书写笔或手持终端的内部或表面。 [0019] In one embodiment, the carrier is wearable on a user's finger or hand-held terminal ring, the MEMS sensor is mounted inside or the surface of the ring, the special structure of the pen or hand held terminal.

[0020] 本申请的有益效果是:通过传感器感应手势动作,不仅能够在一定范围内上取代其它信息输入方式,而且使手持设备或计算机的使用更具人性化,带动了人机交互新模式的创新。 [0020] The beneficial effect of the present application is: a sensor sensing gestures, not only within a certain range substituents on other information input, but also the use of a computer or handheld device more user-friendly, interactive led new model innovation.

附图说明 BRIEF DESCRIPTION

[0021] 图I是本申请一种实施方式的文字信息输入系统的结构示意图; [0021] FIG. I is a schematic view of one kind of structure of the present application text information input system according to an embodiment;

[0022] 图2是本申请一种实施方式的文字信息输入系统的使用的示意图; [0022] FIG. 2 is a schematic view of the present application to use one kind of character information input system according to an embodiment;

[0023] 图3是本申请另一种实施方式的文字信息输入系统的使用的示意图; [0023] FIG. 3 is a schematic diagram of another embodiment using text information input system of the present embodiment of the application;

[0024] 图4是本申请一种实施方式的文字信息输入系统应用于书写笔画构成文字时的基本手势元素的示意图; [0024] FIG. 4 is a schematic view of the present application one kind of basic elements of the gesture input character information when the system is applied to the writing mode character strokes constituting the embodiment;

[0025] 图5是本申请一种实施方式的文字信息输入系统实现激活或操控命令的方式的示意图; [0025] FIG. 5 of the present application is a text information input system of one embodiment of a schematic diagram of activation or control command to achieve the embodiment;

[0026] 图6a是本申请一种实施方式的文字信息输入方法的流程示意图; [0026] Figure 6a is one kind of application of the present process character input method of an embodiment of a schematic view of the information;

[0027] 图6b是本申请一种实施方式中根据原始空间矢量组数据匹配出文字的流程示意图; [0027] Figure 6b is an embodiment of the present application text to the original spatial matched vector set of data flow schematic;

[0028] 图7是本申请一种实施方式的文字信息输入方法的流程图; [0028] FIG. 7 is a flowchart of the present application one kind of character input method of the embodiment of the information;

[0029] 图8是本申请一种实施方式的文字信息输入方法中处理器的流程示意图。 [0029] FIG. 8 is a schematic flow diagram of the present application one kind of character information processor input method according to an embodiment.

具体实施方式 Detailed ways

[0030] 下面通过具体实施方式结合附图对本申请作进一步详细说明。 [0030] The following figures of the present application will be further described in detail by specific embodiments in combination.

[0031] 本申请实施方式的设计思想是:通过MEMS (Micro Electro Mechanical System,微机电系统)传感器或装有MEMS传感器的手势设备,感应手势动作并输出相应的信号,通过算法识别相应的文字信息并存储在相应的设备上。 [0031] The design according to the present embodiment is application: by MEMS (Micro Electro Mechanical System, MEMS) sensor, or a gesture with the MEMS sensor device sensing gestures and outputs corresponding signals, text information corresponding algorithm identifies and stored on the respective device. 从而,可在任何场合下实现无屏文字信息输入,不仅能够在一定范围内取代其它信息输入方式,且使得计算机或手持设备的使用更具人性化,丰富了使用者的书写体验。 Thus, it can be realized without the character information input screen at any occasion, not only replace other information input mode in a certain range, and makes the use of a computer or handheld device more user-friendly, the user rich writing experience.

[0032] 如图I所示,本申请一种实施方式中,文字信息输入系统包括:MEMS传感器和识别处理器。 [0032] FIG I, the application of the present embodiment, character information input system comprising: MEMS sensor and a recognition processor. 微机电系统传感器用于感应使用者书写文字的动作信息,根据动作信息输出相应的信号;识别处理器用于接收与分析所述微机电系统传感器的信号,将所述信号映射为输入的文字。 MEMS sensors for sensing the user operation information written text, according to the operation information corresponding to the output signal; signal recognition processor for receiving the MEMS sensor analysis, mapping the text input signal. 其中,识别处理器包括:接收模块,用于接收所述微机电系统传感器输出的信号;矢量生成模块,用于将接收到的信号生成为可识别的矢量图文字图形;匹配模块,用于匹配所述矢量图文字图形,将其转换为文字信息。 Wherein the recognition processor comprising: a receiving module for receiving a signal output of the MEMS sensor; a vector generation module, for converting the received signal generated as a vector pattern recognizable character; matching module for matching the vector graphics text, convert it to text information.

[0033] 其中,MEMS传感器包括MEMS微加速度计和微陀螺仪,可以采用任何能够感应运动加速度及方向的微加速度计,以及任何能够感知空间转角及转角加速度的微陀螺仪,包括三轴或两轴微加速度计,三轴或两轴微陀螺仪等。 [0033] wherein, MEMS sensor comprises a MEMS micro-accelerometers and micro-gyroscopes, any sensor capable of micro-motion acceleration and the direction of the accelerometer, and any angle capable of sensing spatial and angular rotation of the micro gyroscope, comprising a three-axis or two axis micro accelerometer, a three-axis or two-axis micro gyroscope. 电信号是根据微加速度计和微陀螺仪的检测结果输出的信号,该信号直接反映了手指的运动方向、空间位置、书写时间等信息,能够用于分析各单位动作代表的不同笔画,各动作组所对应的汉字或其它符号。 Electric signal is a signal output from the detection result of micro-accelerometers and micro-gyroscopes, the signal directly reflects the movement direction of the finger, spatial location, time and other information writing, the operation stroke can be used to analyze different representatives of the units, each operation group corresponding to characters or other symbols. 也就是说,通过微加速度计和微陀螺仪感知到当前书写动作的加速度和角速度,通过加速度和角速度可以完成位置信息和运动方向信息的输入。 That is, the current acceleration and the angular velocity sensed by the writing operation of the micro-accelerometers and micro-gyroscopes, may complete the input motion direction information and position information by the acceleration and the angular velocity. 这些位置信息和运动方向信息可以组成字体的笔画要素,即只要记住起笔的位置,那么,可以对书写过程中的其他关键位置以及笔画要素进行记忆,从而完成文字的输入。 The location and movement direction information can be composed of elements of the stroke font, just remember that is the pen position, then, may be the memory of other key elements of the stroke position and the writing process, thus completing the input text.

[0034] 为方便使用者的输入,在一种实施例中,公开了一种手写输入设备,包括载体和微机电系统传感器,微机电系统传感器附着在载体上,微机电系统传感器用于感应使用者书写文字的动作信息,根据动作信息输出相应的信号,信号包括反映动作信息的原始空间矢量组数据,原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息。 [0034] For the convenience of the user's input, in one embodiment, it is disclosed a handwriting input apparatus, comprising a support and a MEMS sensor, a MEMS sensor attached to the carrier, a sensor for sensing microelectromechanical system using by the written word operation information, operation information corresponding to the output signal, the original signal space vector includes a set of data reflecting the operation information, the original spatial space vector set of data includes the operation of position information, direction information, and time information according to the writing.

[0035] 所述微机电系统传感器包括微加速度计、微陀螺仪和信号生成单元,所述微加速度计和微陀螺仪分别连接到信号生成单元,微加速度计用于感应运动的加速度及方向并输出到信号生成单元,微陀螺仪用于感应运动的空间转角及转角加速度、初始化一个坐标系并输出到信号生成单元,所述信号生成单元接收微加速度计和微陀螺仪的输出,生成初始化坐标系信号和与每个书写动作对应的原始空间矢量组数据。 [0035] The MEMS sensor includes a micro-accelerometers, micro gyroscope and signal generating means, said micro-accelerometers and micro-gyroscopes are connected to the signal generating unit and the micro-accelerometer for acceleration and movement direction of the induction output signal generating means to coordinate the initialization, the micro gyroscope for sensing angular movement of the spatial and angular rotation, initialize a coordinate system and output to the signal generating means, said micro-accelerometer and gyroscope output differential signal generating unit receives, generates and signal lines corresponding to each operation of writing the original data set space vector.

[0036] 一种实施例中,MEMS传感器安装在能够佩带在使用者的手指上的设备上,如图2所示,使用者的手指尖位置上佩戴装有MEMS传感器的手势设备(例如指环100),指环100可以是环状或可形成环状佩带的带状,微机电系统传感器安装在指环的内部或表面,可直接安装,也可以通过一个壳体安装,例如微机电系统传感器安装在壳体内,壳体固定在指环的内部或表面。 Device gesture (e.g., ring 100 [0036] In one embodiment, the MEMS sensor is mounted on the user can be worn on a finger of the apparatus shown in Figure 2, the MEMS sensor with the hand wearing the fingertip position on the user ), an annular ring 100 may be formed or shaped annular wear, the MEMS sensor is mounted inside or on the surface of the ring, can be installed directly, can also be mounted by a housing, for example, a microelectromechanical system sensor is mounted in the housing body, housing or inner ring fixed to the surface. 手指佩带手写输入设备做书写文字的动作,引发传感器感知手指的运动,并输出相应的电信号,然后通过有线或无线的方式传输给位于计算机或手持设备(如手机、掌上电脑等)上的识别处理器进行分析,通过信号处理和模式识别,将识别出来的文字存储在该设备上。 Recognizes the finger wearing a handwriting input device to write characters do motion triggered sensor senses movement of the finger, and outputs a corresponding electrical signal and then transmitted via a wired or wireless manner to a computer or handheld device is located (e.g., cell phone, palmtop, etc.) on word processor is analyzed by the signal processing and pattern recognition, the identified stored on the device. 当MEMS传感器通过无线的方式将根据使用者的运动生成的电信号传输给位于计算机或手持设备时,手写输入设备还包括数据传输模块,所述数据传输模块为无线通讯模块,用于将MEMS传感器生成的电信号生成符合无线传输协议的数据包,通过无线传输的方式发送给接收端(例如计算机、手机或掌上电脑等),无线传输的方式可以是WIFI通信,或者蓝牙通信,或者红外线通信、或者3G通信等。 When the MEMS sensor by wirelessly transmits an electrical signal according to the movement of the user is positioned to generate a computer or handheld device, a handwriting input apparatus further comprises a data transmission module, the data transmission module is a wireless communications module for the MEMS sensor generating an electrical signal generated by the wireless transmission protocol compliant data packet through wireless transmission sent to the receiver (such as a computer, cell phone or PDA, etc.), wireless transmission may be a WIFI communication or Bluetooth communication, or infrared communication, 3G communication or the like. 具体的传感器灵敏度可以由本领域技术人员根据传感器参数等设定,本申请实施例对此不作限制。 Specifically sensitivity of the sensor can be a sensor in accordance with parameters set by those skilled in the art, the present application is not limited to this embodiment. 这种实施例的优势在于,含传感器的感知端佩戴方便,直接佩戴至指尖即可,不需额外的电极。 The advantage of this embodiment is that the sensing end of the sensor containing convenient to wear, to be worn directly fingertips, no additional electrode. 该实施例中,电信号输出后在接收端(也就是计算机或手持设备)上进行A/D转换后再进行信号处理与模式识别;其他实施例中,可以在MEMS传感器侧先进行A/D转换,将电信号转换为数字信号后,再发送给接收端,由接收端进行信号处理与模式识别以识别出文字。 In this embodiment, the electrical signal output at the receiving end (i.e. a computer or handheld device) for A / D conversion and then performs signal processing and pattern recognition on; other embodiments, may be performed first A / D side of the MEMS sensor after conversion, converts the electrical signal into a digital signal, and then transmitted to the receiving end, the receiving end by the signal processing and pattern recognition to recognize the character. [0037] 另一种实施例中,载体为手持终端200,微机电系统传感器安装在手持终端的内部或表面。 [0037] In another embodiment, the carrier is a handheld terminal 200, a MEMS sensor is mounted inside or on the surface of the handheld terminal. 手持终端可以制作成各种形状,手持终端也可以是鼠标或特殊结构的书写笔。 Handheld terminal can be made into various shapes, the handheld terminal may be a pen or a mouse, a specific structure. 如图3所示,此时,使用者手握该手持终端,通过手持终端中的MEMS传感器感知手势动作,然后通过无线的方式传输给位于计算机或其他手持设备上的识别处理器进行分析。 3, this time, the user holding the handheld terminal, handheld terminal by gestures perceived in the MEMS sensor, and by way of wireless transmission to the recognition processor located on the computer or other handheld device for analysis. 这种实施例的一种变形中,手写输入设备还包括处理器,微机电系统传感器与处理器连接,将生成的电信号输出给处理器,例如可将系统中的识别处理器设置在使用者手握的手持终端中,直接由该手持终端中的处理器分析并进行文字识别,将识别出来的文字信息通过无线传输的方式发送给计算机或手持设备(如手机、掌上电脑等)。 A variation of such an embodiment, the handwriting input device further includes a processor, a microelectromechanical system sensor is connected to the processor, the generated electric signal to a processor, such as the system identification processor may be provided in the user holding the handheld terminal, handheld terminal analysis directly from the processor and the character recognition, the recognized text information to the computer or handheld device (such as mobile phones, PDAs, etc.) through wireless transmission.

[0038] 实施例中,MEMS传感器可确定出书写文字的位置,并将位置信号发送给处理器侧,由处理器侧通过惯性导航算法生成可识别的矢量,然后通过模式识别算法完成矢量匹配。 [0038] In an embodiment, the MEMS sensor can determine the position of the written word, and the position signal to the processor side, inertial navigation algorithm generates a vector may be identified, and then the vector is accomplished by matching the pattern recognition algorithm by the processor by side. 可以理解,本领域技术人员可以采用现有技术中的任一种惯性导航算法及模式识别算法来识别文字,本申请对此不做限制。 It will be appreciated that those skilled in the art may employ any inertial navigation algorithm and the prior art pattern recognition algorithm to identify the text, it is not limited in the present application. [0039] 如图4所示,一种使用本申请文字信息输入系统在书写笔画构成文字时的基本手势元素的示意图,特别是针对诸如汉字、日文等笔画构成文字,所需识别几个基本手势元素,从左到右、从上到下分别对应汉字的“横、竖、撇、捺、左弯钩、右弯钩、折、提”几个基本笔画。 [0039] As shown, a schematic view of the present application using a character information input system substantially gesture elements constituting the character writing stroke, particularly for such characters constituting the character 4, Japanese and other strokes, required to identify several basic gestures elements, from left to right, top to bottom, respectively, corresponding to the Chinese character "horizontal, vertical, left, right, left hook, a right hook, off, mention" several basic strokes. 接收端根据对这些手势动作空间矢量序列的记录,进而可以通过模式识别等算法实现对应单位汉字的识别。 The recording on the receiving end of these gestures space vector sequences, and thus identify the corresponding unit of Chinese characters can be achieved by pattern recognition algorithms.

[0040] 为实现相关操控命令,可以通过在不同的时间限度内不同的动作次序来实现相关操控命令,发送诸如“输入开始或结束”的命令。 [0040] To achieve the relevant control command, control commands may be implemented by associated different limits in different time order of operation, transmits a command such as "enter a start or end". 如图5所示,501是通过纵向的动作(例如垂直于书写平面的动作)实现激活或者操控命令的方式。 5, the control command 501 is activated or realized by way of the longitudinal motion (e.g., motion perpendicular to the plane of the writing). 当然,也可以通过硬件的开关或软件的控制操作来决定启动或关闭书写输入功能。 Of course, you can also decide to enable or disable the written input function by controlling the operation of a hardware or software switch. 502所表示的手势信息为“逆横”,可在输入过程实现删除功能,即前一个字符如书写错误,可用502笔画命定进行删除;同样503为“逆竖”,可实现切换到下一文档的功能;504可实现回到第一篇存储文档的功能,相当于回到起始文档,便于在虚拟输入情况下,不用看屏幕也能确定所在文档的位置;在盲写输入程序随系统启动的情况下,505可作为激活虚拟输入,如果程序没有随系统启动,即没有在移动设备的系统进程中,可以通过进入系统界面,正常开启程序激活虚拟输入状态;506所表示结束虚拟输入并存档的命令。 The gesture indicated by the information 502 as "reverse horizontal", may be implemented during the input delete function, i.e. before a character such as a writing error, the available 502 strokes destined for deletion; similarly 503 to "reverse vertical", may be implemented to switch to the next document functionality; 504 can achieve storage function back to the first chapter of the document, is equivalent to return to the starting document for easy input in a virtual situation, without looking at the screen can determine the location of the document; input program written in a blind start with the system in a case 505 as activate the virtual input, if the program does not start with the system, i.e. not on a system process of the mobile device, by entering the system interface, normally open procedures activate the virtual input state; 506 indicates the end of the virtual input and archived The command. 上述命令对应的手势命令可自定义。 Corresponding to the above command gesture commands can be customized.

[0041] 本申请实施方式提供的文字信息输入系统与以往各种输入系统的本质区别在于,传统的键盘或屏幕输入法需要实体屏幕或键盘手眼并用进行相应输入,而本申请实施方式则脱离屏幕与键盘,在各种环境下仅通过手势动作实现“无屏输入”,在手运动时,手可以在任意空间移动,不需要被屏幕或键盘限制在特定的位置,因此不需要用眼睛关注手的动作,可以将眼睛从屏幕或键盘上解放出来。 [0041] Text information input system of the present application embodiment provides the essential difference between a conventional various input systems that require physical screen or keyboard hand-eye traditional keyboard or on-screen input method and a corresponding input, while the present application embodiment, the departing screen and keyboard in a variety of environments achieved only through gestures "no screen input," at the hand movements, the hand can move in any space need not be restricted to a specific location on the screen or keyboard, so no concern hand with your eyes the action can be freed from the eyes or on-screen keyboard.

[0042] 基于上述文字信息输入系统,本申请实施方式还提供了实现了一种文字信息输入方法,如图6a所示,包括以下步骤: [0042] Based on the character information input system, the present embodiment also provides application implements a character information input method, shown in Figure 6a, includes the following steps:

[0043] 使用MEMS传感器感应使用者书写文字的动作信息,根据动作信息输出相应的信号。 [0043] using a MEMS sensor senses the user operation information written word, in accordance with an output signal corresponding to the operation information. 在进入书写模式后,MEMS传感器跟随使用者的手指运动,感应运动的加速度和角速度,通过计算得到对应每一运动的原始空间矢量组数据,至少包括动作的空间位置信息、方向{目息和书写时间ί目息。 After entering the writing mode, the MEMS sensor to follow a user's finger movements, the acceleration and angular velocity sensing motion, to obtain the original spatial motion vector corresponding to each set of data by computing, comprising at least the spatial position of the action information, direction information, and writing {mesh time ί mesh information.

[0044] 分析MEMS传感器输出的信号并将该信号映射为输入的文字。 [0044] MEMS sensor output signal is analyzed and the character input signal is mapped to. 分析所述原始空间矢量组数据,生成可识别的矢量图文字图形,匹配所述矢量图文字图形,将其转换为文字信肩、O Analysis of the raw data space vector group, vector generated character pattern recognizable character pattern matching the vector, to convert it to text letter shoulder, O

[0045] 在一具体实施例中,分析MEMS传感器输出的信号并将该信号映射为输入的文字的流程如图6b所示,具体包括: [0045] In one embodiment, the MEMS sensor output signal is analyzed and the signal mapped to the character input process shown in Figure 6b, comprises:

[0046] 步骤S601,分析所述原始空间矢量组数据,根据原始空间矢量组数据中的位置信息和方向信息,生成与该动作对应的笔划的矢量图。 [0046] step S601, the analysis of the original set of data space vector based on the position information and direction information of the original space vector set of data, the generated stroke vector corresponding to the operation.

[0047] 步骤S602,根据原始空间矢量组数据中的书写时间信息,将生成的笔划按书写时间先后排列成笔划序列,并计算笔划序列中相邻两笔划的间隔时间。 [0047] step S602, in accordance with the writing time of the original set of data space vector information generated by writing strokes are arranged in chronological sequence of strokes, and calculates the time interval of the sequence of strokes two adjacent strokes.

[0048] 步骤S603,将间隔时间与设定阈值进行比较,当间隔时间小于设定阈值时,执行步骤S604,将笔划划分为一个笔划组合,继续对书写的间隔时间进行判断,如果间隔时间仍小于设定阈值,则仍将该笔划划入这个笔划组合,直到出现间隔时间大于或等于设定阈值的情况。 [0048] step S603, the interval time is compared with the set threshold value, when the interval time is less than a set threshold value, the step S604, the stroke is divided into a stroke combination, continues intervals writing the determination, if the interval is still less than a set threshold, the stroke is still assigned to the combination of stroke, until the appearance time interval equal to or greater than the setting threshold value. 当间隔时间大于或等于设定阈值时,认为该相邻两笔划分属于不同的文字,应将笔划划入不同的笔划组合中,则执行步骤S605,结束上个笔划组合,开始一个新的笔划组合,将该笔划划入与上一笔划不同的一个新的笔划组合中。 When the interval is greater than or equal to the set threshold value, that the two adjacent divided strokes belong to different characters, the stroke should be assigned to different combinations of strokes, perform step S605, the end of the last stroke in combination, to start a new stroke combination, the strokes included in combination with a new stroke on a different stroke of. 即如果相邻两笔划的书写间隔时间小于设定阈值,则这些笔划都属于同一个笔划组合,属于一个文字的笔划。 That is, if the writing of two neighboring stroke interval less than a set threshold, these strokes belong to the same combination of a stroke, a character stroke belongs. 当检测到某相邻两笔划的书写间隔时间大于或等于设定阈值时,认为是另外一个文字的开始。 When detecting a stroke of two adjacent writing time interval equal to or greater than the set threshold value, that is the beginning of another character. 设定阈值可采用程序中的默认设置,也可根据使用者的书写习惯进行设定。 The default threshold settings can be set in the program, it can also be set according to the user's writing habits.

[0049] 步骤S606,在文字库中为已完成的笔划组合匹配出对应的文字。 [0049] step S606, the text repository for the corresponding character matches the combination of stroke has been completed. 匹配时根据该笔划组合中包含的笔划,采用匹配算法匹配出文字,一个笔划组合对应一个文字。 According to match the stroke of the stroke included in the combination, use of a matching algorithm for matching text, a combination corresponding to a character stroke. 可采用现有的的图像匹配算法进行辅助识别,进行校验以提高准确率。 Employed conventional image matching algorithm to assist in identifying, for verification to enhance accuracy.

[0050] 最后推断所要表达的文字,并与相应文字建立单映射或多映射关系。 [0050] Finally infer text to express, and to establish a single map or mapping relation with the corresponding text.

[0051] 为了更进一步地说明这种手写输入的方法,图7和图8还示出了一个更为详尽的实施例,其中,图7为文字信息输入方法的流程,图8示出了接收端接收信号并映射为文字的流程。 [0051] To further illustrate this method of handwriting input, FIG. 7 and FIG. 8 also shows a more detailed embodiment, wherein FIG. 7 is a flow character information input method, Figure 8 shows a receiving terminal receives the signal and processes the mapping to text.

[0052] 如图7所示,以输入一个汉字为例,一个汉字包含若干笔划(称为笔划组),包括如下步骤: [0052] 7, to input a Chinese character, for example, comprise a plurality of strokes of Chinese characters (referred to as a stroke group), comprising the steps of:

[0053] 步骤S701,使用MEMS传感器进行初始化坐标系等工作; [0053] step S701, the initialization of the work using a MEMS sensor coordinate system and the like;

[0054] 理论上,要描述一个物体的运动,首先要建立坐标系,本实施例由微加速度计发出的信号来完成,某个特殊动作使加速度计发出开始信号,即以发出该信号的点为坐标原点,然后根据初始条件计算速度、加速度和空间位置等,这个由微加速度计和微陀螺仪共同来完成。 [0054] Theoretically, to describe a moving object, to establish a first coordinate system, for example by a signal emitted by the micro-accelerometer according to the present embodiment is done, a particular operation start signal is issued so that the accelerometer, i.e., the point to issue the signal as the coordinate origin, then the initial conditions for calculating velocity, acceleration and spatial location, this is done by common micro gyroscopes and micro-accelerometers. 这里,特殊动作即前述实现相关操控命令的动作。 Here, a special action that is related to steering commands to achieve the aforementioned actions.

[0055] 步骤S702,通过前述实现相关操控命令的方法,如通过纵向的动作实现激活或操控命令的方式来确定当前是否结束输入,如果是,则结束输入,并输出相关信息,如果否,则转步骤S703。 [0055] step S702, by the maneuver commands implemented method, to determine whether the current end of the input, if yes, ending the input, and outputs information such as the realization activation or control commands by way of longitudinal movement, if not, go to step S703.

[0056] 步骤S703,感应动作信息。 [0056] step S703, the sensing operation information. 通过MEMS传感器感应使用者书写文字时的动作信息,其中,具体的传感器灵敏度可以由本领域技术人员根据传感器参数等设定,本申请实施例对此不作限制。 Operation information written text with the MEMS sensor senses a user, wherein the specific sensor sensitivity sensor parameters can be set, the embodiment by those skilled in the art of the present application is not limited to this.

[0057] 步骤S704,信号处理。 [0057] step S704, the signal processing.

[0058] 如前述,一种实施例中,MEMS传感器感应得到的电信号可以在MEMS传感器侧进行A/D转换,然后将转换后的信号发送给接收端(即处理器侧),由处理器侧对接收到的信号根据惯性导航算法进行信号处理,生成可识别的矢量。 [0058] As noted above, in one embodiment, MEMS sensor senses electrical signals may be obtained by A / D conversion side of the MEMS sensor, the converted signal is then transmitted to the receiving side (i.e. the processor side), by a processor, the received signal side inertial navigation signal processing algorithm, to generate the vector can be identified. 另一种实施例中,MEMS传感器感应得到的电信号后,直接将电信号发送给处理器侧,由处理器对接收到的电信号进行A/D转换等信号处理,确定书写过程中关键位置,生成可识别的矢量。 After a further embodiment an electrical signal, the MEMS sensor senses obtained embodiment, sends an electrical signal directly to the processor side, abutting by a processor, the received electrical signals by A / D conversion, signal processing, determination process of writing key locations generating a vector may be identified.

[0059] 步骤S705、S706这两个步骤是对可识别的矢量进行单位手势笔划匹配以及笔划组匹配,将关键位置参数转换为文字。 [0059] Step S705, S706 is a vector of these two steps be recognized gesture stroke matching unit and matching the stroke group, to convert the key position parameter of the text. 可以采用现有模式识别算法生成文字信息(即步骤S707),本申请对此不做限制。 Conventional pattern recognition algorithm can be used to generate character information (i.e., step S707), the present application which is not limited.

[0060] 步骤S708,结束单位文字输入。 [0060] step S708, a character input unit is completed.

[0061] 图8是接收端(即处理器侧)接收信号并映射为文字的流程,包括如下步骤: [0061] FIG. 8 is a receiving end (i.e. the processor side) of the received signal and map the text flow, comprising the steps of:

[0062] 步骤S801,接收MEMS传感器输入信号,可以通过硬件或软件触发来确定当前存在MEMS传感器的输入信号,确定当前需要输入的文字; [0062] step S801, the MEMS sensor receives an input signal, the input signal to determine the presence of MEMS current sensor, the current character to be input can be triggered by hardware or software;

[0063] 步骤S802,设备端激活文本输入状态;也就是说,步骤S801和S802相当于一个初始化过程,唤醒接收端准备接收数据; [0063] step S802, the terminal device activates the text input state; that is, a step S801 and S802 corresponds to the initialization procedure, wakes up the receiver side is ready to receive data;

[0064] 步骤S803,接收MEMS传感器数据; [0064] step S803, the data receiving MEMS sensor;

[0065] 步骤S804、S805、S806,这三个步骤由处理器来完成,由其分析接收的空间矢量组,生成可识别的矢量图文字图形存入设备端,或者把矢量图形转换成可复制的文字信息后在存入设备端。 [0065] Step S804, S805, S806, these three steps performed by the processor, by analysis of the received space vector group, vector generated character pattern is stored in the device side can be identified, or to convert into a replicable vector graphics after the text messages stored in the device.

[0066] 至此,文字信息输入完成。 [0066] Thus, the text message input is completed.

[0067] 当然,根据图7和图8的上述步骤,在不脱离本申请的精神和原则下,本领域技术人员可以进行简单的更换、增加或删减步骤。 [0067] Of course, the above-described steps of FIGS. 7 and 8, without departing from the spirit and principle of the present disclosure, one skilled in the art can simply replace, add or delete steps. 例如,可以将分析与识别信号的步骤都放到感知书写动作的外设上,在外设中将文字识别出来,然后再发送给设备端进行存储等其他操作。 For example, the signal analysis step of identifying perceptually writing operation are put peripherals, the peripherals identified in the text, and then sent to the other operations like storage device side.

[0068] 相比于传统的输入方式需要通过视频信息,严重依赖屏幕,本申请文字信息输入系统及方法不是通过视频信息,而是通过基于MEMS的手势动作信息进行文字识别,可以有效脱离屏幕实现各种场合下信息的虚拟输入,实现无屏文字信息输入,不仅能够在一定范围内上取代其它信息输入方式,使计算机或手持设备的使用更具人性化,还带动了人机交互新模式的创新。 [0068] Compared with the conventional approach requires the input video information, rely heavily on the screen, the present application text information input system and method is not the video information, but by performing character recognition based on gestures MEMS information can be effectively achieved from the screen various occasions under virtual input information, information-free screen text input, not only can replace other input methods on information within a certain range, use the computer or handheld device is more humane, but also led to a new model of human-computer interaction innovation. 并且,一种实施例中,含MEMS传感器的感知端可直接佩戴至指尖,其佩戴方式不仅方便,而且不需要额外的电极。 And, in one embodiment, the MEMS sensor sensing the end containing the wearable directly to the fingertip, which is not only convenient way of wearing, and does not require an additional electrode.

[0069] 以上内容是结合具体的实施方式对本申请所作的进一步详细说明,不能认定本申请的具体实施只局限于这些说明。 [0069] The above is described in further detail with reference to specific embodiments of the present application made by the present application should not be considered limited to the particular embodiments described. 对于本申请所属技术领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干简单推演或替换。 Those of ordinary skill in the art of the present application pertains art, without departing from the concepts of the present application premise, can make various simple deduction or replacement.

Claims (10)

1. 一种文字信息输入系统,其特征在于,包括: 微机电系统传感器,用于感应使用者书写文字的动作信息,根据动作信息输出相应的信号,所述信号包括反映动作信息的原始空间矢量组数据,所述原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息; 识别处理器,用于接收与分析所述微机电系统传感器的信号,将所述信号映射为输入的文字。 A character information input system, comprising: a MEMS sensor, for sensing the user operation information written text, according to the operation information corresponding to the output signal, said signal comprising motion information reflecting the original space vector set of data, the original set of data includes spatial space vector operation position information, direction information, and time information is written; recognition processor for receiving and analyzing signals of the MEMS sensor, the input signal is mapped to the text.
2.如权利要求I所述的系统,其特征在于,所述微机电系统传感器包括微加速度计、微陀螺仪和信号生成单元,所述微加速度计和微陀螺仪分别连接到信号生成单元,微加速度计用于感应运动的加速度及方向并输出到信号生成单元,微陀螺仪用于感应运动的空间转角及转角加速度、初始化一个坐标系并输出到信号生成单元,所述信号生成单元接收微加速度计和微陀螺仪的输出,生成相应的信号。 2. The system of claim I, wherein the MEMS sensor comprises a micro-accelerometers, micro gyroscope and signal generating means, said micro-accelerometers and micro-gyroscopes are connected to the signal generating unit, accelerometer sensing an acceleration and direction of motion, and output to the signal generating unit, a micro gyroscope for sensing angular movement of the spatial and angular rotation, initialize a coordinate system and output to the signal generating means, said signal generating means receiving micro micro-accelerometers and gyroscopes output, generates a corresponding signal.
3.如权利要求I或2所述的系统,其特征在于,所述识别处理器包括: 接收模块,用于接收所述微机电系统传感器的信号; 矢量生成模块,用于将接收到的信号生成为可识别的矢量图文字图形; 匹配模块,用于匹配所述矢量图文字图形,将其转换为文字信息。 I 3. The system according to claim 2, wherein said recognition processor comprising: a receiving module for receiving a signal of the MEMS sensor; vector generation module, a signal received generated as a vector pattern recognizable character; matching module for matching the character pattern vector, convert it to text information.
4. 一种手写输入设备,其特征在于,包括载体和微机电系统传感器,所述微机电系统传感器附着在载体上,所述微机电系统传感器用于感应使用者书写文字的动作信息,根据动作信息输出相应的信号,所述信号包括反映动作信息的原始空间矢量组数据,所述原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息。 A handwriting input apparatus, characterized by comprising a carrier and a MEMS sensor, the MEMS sensor is attached to the carrier, the MEMS sensors for sensing the user operation information written text, according to the operation information output corresponding to a signal space vector includes an original set of data reflecting the operation information, the original spatial space vector set of data includes the operation of the position information, direction information, and time information is written.
5.如权利要求4所述的手写输入设备,其特征在于,所述载体为可佩带在使用者手指上的指环或手持终端,所述微机电系统传感器安装在指环或手持终端的内部或表面。 5. The handwriting input according to claim 4, characterized in that the carrier is wearable on a user's finger or hand-held terminal ring, the MEMS sensor mounting surface or the inner ring or in the handheld terminal .
6.如权利要求4或5所述的手写输入设备,其特征在于,所述微机电系统传感器包括微加速度计、微陀螺仪和信号生成单元,所述微加速度计和微陀螺仪分别连接到信号生成单元,微加速度计用于感应运动的加速度及方向并输出到信号生成单元,微陀螺仪用于感应运动的空间转角及转角加速度、初始化一个坐标系并输出到信号生成单元,所述信号生成单元接收微加速度计和微陀螺仪的输出,生成相应的信号。 6. 4 or 5 handwriting input device of claim, wherein the MEMS sensor comprises a micro-accelerometers, micro gyroscope and signal generating means, said micro-accelerometers and micro-gyroscopes are connected to signal generating means for micro-accelerometer and acceleration sensing motion direction and output to the signal generating unit, a micro gyroscope for sensing angular movement of the spatial and angular rotation, initialize a coordinate system and output to the signal generating means, said signal generating micro-accelerometers and micro-gyroscopes output unit receives, generates a corresponding signal.
7. 一种文字信息输入方法,其特征在于,包括: 使用微机电系统传感器感应使用者书写文字的动作信息,根据动作信息输出相应的信号,所述信号包括反映动作信息的原始空间矢量组数据,所述原始空间矢量组数据包括动作的空间位置信息、方向信息和书写时间信息; 分析所述信号并将所述信号映射为输入的文字。 A character information input method comprising: using a microelectromechanical system sensor senses the user operation information written word, based on the operation information corresponding to an output signal of said signal space vector includes an original set of data reflecting the operation information the space vector original set of data includes the operation of spatial position information, direction information, and time information written; analyzing said signal and the input signal is mapped to the character.
8.如权利要求7所述的方法,其特征在于,还包括:通过在不同的时间限度内设置不同的动作次序来实现与书写文字相关的操控命令。 8. The method according to claim 7, characterized in that, further comprising: writing related to implement text control command by setting the order of different actions in different time limits.
9.如权利要求7或8所述的方法,其特征在于,所述根据动作信息输出相应的信号包括:所述微机电系统传感器初始化一个坐标系,并根据动作信息测量使用者书写文字时的运动加速度和角速度,计算得到使用者书写文字的原始空间矢量组数据;所述分析所述信号并将所述信号映射为输入的文字包括:分析所述原始空间矢量组数据,生成可识别的矢量图文字图形,匹配所述矢量图文字图形,将其转换为文字信息。 9. The method of claim 7 or claim 8, wherein said output signal comprising a respective motion information: the MEMS sensor to initialize a coordinate system, in accordance with the motion information and the measurement time of the user to write text motion acceleration and the angular speed calculated by the user to write text space vector original set of data; analyzing said signal and said signal is mapped to the character input comprises: analyzing the original set of data vector space, generating a vector recognizable FIG characters and graphics, the vector character pattern matching, convert it to text information.
10.如权利要求9所述的方法,其特征在于,所述分析所述信号并将所述信号映射为输入的文字具体包括: 分析所述原始空间矢量组数据,生成与该动作对应的笔划; 根据原始空间矢量组数据中的书写时间信息,将生成的笔划按书写时间先后排列成笔划序列,并计算笔划序列中相邻两笔划的间隔时间; 将间隔时间与设定阈值进行比较,将间隔时间小于设定阈值的笔划划分为一个笔划组合; 根据笔划组合中包含的笔划在文字库中为笔划组合匹配出对应的文字。 10. The method according to claim 9, wherein said analyzing said signal and the input signal is mapped to the character comprises: analyzing the original set of data space vector, generating the corresponding stroke operation ; the writing time of the original set of data space vector information generated by writing strokes are arranged in chronological sequence of strokes, the stroke sequence and calculates the time interval of adjacent two stroke; set time interval threshold value, the interval less than the set threshold value of the stroke is divided into a combination of a stroke; stroke according to the stroke matching included in the combination corresponding character in the text is a combination of strokes library.
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