WO2018094833A1 - Interaction device, and distance detection method and apparatus - Google Patents

Interaction device, and distance detection method and apparatus Download PDF

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Publication number
WO2018094833A1
WO2018094833A1 PCT/CN2016/113307 CN2016113307W WO2018094833A1 WO 2018094833 A1 WO2018094833 A1 WO 2018094833A1 CN 2016113307 W CN2016113307 W CN 2016113307W WO 2018094833 A1 WO2018094833 A1 WO 2018094833A1
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WO
WIPO (PCT)
Prior art keywords
infrared
smart pen
distance
signal
display screen
Prior art date
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PCT/CN2016/113307
Other languages
French (fr)
Chinese (zh)
Inventor
张金成
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广州视睿电子科技有限公司
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Publication of WO2018094833A1 publication Critical patent/WO2018094833A1/en

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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
    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04101—2.5D-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

Definitions

  • the present invention relates to the field of electronic technologies, and in particular, to an interaction device, a distance detecting method, and an apparatus.
  • the smart pen is a multi-function mobile pen with matching operation platform communication compared with the traditional refill.
  • FIG. 1 is a frame diagram of a smart pen system in the prior art solution.
  • the smart pen 3 is internally integrated with an MCU (Micro Ccontroller Unit) 31 and a first wifi (Wireless-Fidelity) module. 32.
  • the MCU 31 and the first wifi module 32 are connected by a USB (Universal Serial Bus) method to implement state control of the first wifi module 32 by the MCU 31.
  • the smart pen 3 and the display device 4 use wifi communication, mainly in the 2.4G frequency band.
  • the first wifi module 32 of the smart pen 3 is built into the local area network by the second wifi module 41 of the display device 4 through the RF (Radio Frequency) protocol, and the control chip 42 performs corresponding operations according to the control command issued by the smart pen 3 to implement the corresponding operation. Corresponding function.
  • the prior art solution requires that the smart pen end and the display device end have a built-in wifi module, and the price is relatively high. Due to the use of the wifi band, the radio frequency interference is greatly affected, so that the display device cannot accurately execute the control command sent by the smart pen end. At the same time, the wifi-based smart pen can realize the signal connection as long as it is connected, and there is no accurate judgment of the distance between the devices.
  • an embodiment of the present invention provides an interaction device, a distance detecting method, and a device, which are Make sure the distance between the infrared smart pen and the touch display.
  • the first aspect adopts an interactive device, including a touch display screen and an infrared smart pen;
  • the touch display screen includes an infrared touch frame, and the inner side wall of the infrared touch frame is provided with four infrared light bars, and the four infrared light bars are respectively disposed in four directions of the inner side wall;
  • a pair of the first infrared emitter and the first infrared receiver are disposed on the two opposite infrared light strips for forming a touch recognition area through the first infrared emitter and the first infrared receiver Perform touch detection;
  • the infrared smart pen includes a smart pen microprocessor, a second infrared emitter and a second infrared receiver, and the second infrared emitter and the second infrared receiver are both connected to the smart pen microprocessor;
  • the second infrared receiver is configured to detect an infrared signal emitted by the first infrared emitter
  • the smart pen microprocessor is configured to process an infrared signal received by the second infrared receiver, and control the second infrared emitter to emit an infrared signal;
  • the second infrared emitter is configured to emit an infrared signal outward.
  • the touch display screen further includes a first infrared transceiver, the first infrared transceiver being disposed outside the infrared touch frame and perpendicular to a display surface of the touch display screen for receiving the touch display An infrared signal emitted by a signal source external to the screen.
  • the number of the first infrared transceivers is at least two.
  • the number of the second infrared receivers is at least two.
  • the second aspect uses a distance detection method, including:
  • the touch screen emits an infrared signal outward
  • the infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal
  • the infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
  • the infrared signal emitted by the touch display screen carries the transmission power of the infrared signal and the characteristic code of the corresponding infrared emitter;
  • the infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal, including:
  • the infrared smart pen confirms the infrared emitter corresponding to the infrared signal and the corresponding receiving intensity according to the detected infrared signal;
  • the infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal, including:
  • the infrared smart pen confirms a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal;
  • the infrared smart pen confirms a distance between the infrared smart pen and each of the infrared emitters according to a transmission power and a reception intensity of the infrared signal;
  • the infrared smart pen confirms a distance between the infrared smart pen and the touch display screen according to a distance between each of the infrared emitters and a relative position between the infrared emitters.
  • the infrared smart pen After the infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the received intensity of the infrared signal, the infrared smart pen further includes:
  • the infrared smart pen confirms an operation mode of the infrared smart pen according to the distance and feeds back to the touch display screen;
  • the touch display screen performs mode switching according to the working mode.
  • the third aspect adopts a distance detecting device, including a touch display screen and an infrared smart pen;
  • the touch display screen includes:
  • a signal transmitting unit for transmitting an infrared signal outward
  • the infrared smart pen includes:
  • a signal confirming unit configured to confirm a source and a receiving strength of the infrared signal according to the detected infrared signal
  • a distance calculating unit configured to confirm a distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
  • the infrared signal emitted by the touch display screen carries the transmission power of the infrared signal and the characteristic code of the corresponding infrared emitter;
  • the signal confirming unit is specifically configured to confirm, according to the detected infrared signal, an infrared emitter corresponding to the infrared signal and a corresponding receiving intensity;
  • the distance calculation unit includes:
  • a position confirmation module configured to confirm a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal
  • a distance confirmation module configured to confirm a distance between the infrared smart pen and each of the infrared emitters according to a transmit power and a receive intensity of the infrared signal
  • a spatial operation module configured to confirm a distance between the infrared smart pen and the touch display screen according to the distance between the infrared emitters and the relative position between the infrared emitters.
  • the infrared smart pen further includes:
  • a mode confirmation unit configured to confirm an operation mode of the infrared smart pen according to the distance and feed back to the touch display screen
  • the touch display screen further includes:
  • a mode switching unit configured to perform mode switching according to the working mode.
  • the interaction device, the distance detecting method and the device provided by the embodiment of the invention determine the intensity of the infrared signal emitted by the first infrared emitter in the touch screen display, and integrate the distances of the plurality of first infrared emitters to determine the infrared smart pen and the touch.
  • the distance between the display screens, in the realization of infrared smart pen and touch display At the same time of communication, accurately determine the distance between the infrared smart pen and the touch display.
  • FIG. 1 is a frame diagram of a smart pen system in a prior art solution
  • FIG. 2 is a schematic structural diagram of an interaction device according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural diagram of a touch display screen in an interactive device according to Embodiment 1 of the present invention.
  • FIG. 4 is a flowchart of a method for detecting a distance according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a method for detecting a distance according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic diagram of detection of a distance detecting method according to Embodiment 3 of the present invention.
  • FIG. 7 is a block diagram showing the structure of a distance detecting apparatus according to Embodiment 4 of the present invention.
  • FIG. 2 is a schematic structural diagram of an interaction device according to Embodiment 1 of the present invention.
  • an embodiment of the present invention provides an interaction device, including a touch display screen 1 and an infrared smart pen 2;
  • the touch display screen 1 includes an infrared touch frame 11 , and the inner side wall of the infrared touch frame 11 is provided with four infrared light strips 13 , and the four infrared light strips 13 are respectively disposed in four directions of the inner side wall;
  • a pair of first infrared emitters 131 and a first infrared receiver 132 are disposed on the two opposite infrared light strips 13 for forming touch recognition by the first infrared emitter 131 and the first infrared receiver 132. Area for touch detection;
  • the infrared smart pen 2 includes a smart pen microprocessor 22, a second infrared emitter 21 and a second infrared receiver 23, and the second infrared emitter 21 and the second infrared receiver 23 are both connected to the smart pen microprocessor 22;
  • a second infrared receiver 23 configured to detect an infrared signal emitted by the first infrared emitter 131;
  • a smart pen microprocessor 22 configured to process the infrared signal received by the second infrared receiver 23, and control the second infrared emitter 21 to emit an infrared signal;
  • the second infrared emitter 21 is configured to emit an infrared signal outward.
  • the first infrared emitter 131 and the first infrared receiver 132 correspondingly disposed on the infrared touch frame 11 can form an infrared-based energy grid, and the energy grid can detect the touch operation, when a touch operation occurs, the energy The structure of the grid changes, and the position where the change occurs is the position of the touch operation. Between the first infrared emitter 131 and the first infrared receiver 132, the energy is not strictly constrained in the standard grid structure, but is radiated outward, and can only be constrained at a certain angle, and the external can be detected. The stronger the energy, the closer the distance from the display surface.
  • the distance between the infrared smart pen 2 and the touch display screen 1 can be determined according to the externally detected energy intensity, and for the measurement accuracy, the plurality of second infrared receivers 23 are respectively disposed in the infrared smart pen 2 to face different directions.
  • the direction of the infrared signal emitted by the different first infrared emitters 131 is distinguished by different directions.
  • the second infrared emitter 21 it does not confirm which infrared receiver the emitted infrared signal can be received by the infrared receiver.
  • the outward-emitting infrared signal mentioned in the above can only control the broadcast of the infrared signal to be received by the infrared receiver outside the infrared smart pen 2, and the response to the infrared signal emitted by the second infrared emitter 21 is not affected by the infrared intelligence. Pen 2 decided.
  • the touch display screen 1 further includes a first infrared transceiver 14, the first infrared receiver
  • the transmitter 14 is disposed outside the infrared touch frame 11 and perpendicular to the display surface of the touch display screen 1 for receiving an infrared signal emitted by a signal source external to the touch screen display 1.
  • the first infrared transceiver 14 is disposed outside the infrared touch frame 11 and perpendicular to the display surface of the touch display screen 1 for receiving an infrared signal emitted by a signal source external to the touch screen display 1.
  • the first infrared transceiver 14 is disposed on an outer surface of the infrared touch frame 11.
  • the photosensitive element (not shown) of the first infrared transceiver 14 is oriented perpendicular to the display surface.
  • the first infrared receiver 132 of the infrared touch frame 11 is difficult to receive the infrared signal emitted by the signal source, and the infrared light emitted by the signal source
  • the signal can be received by the first infrared transceiver 14, which can receive infrared signals within 15 meters of the display surface and over a wide range of angles.
  • the first infrared transceiver 14 can also transmit an infrared signal to the infrared smart pen 2.
  • the number of the first infrared transceivers 14 is at least two.
  • first infrared transceiver 14 may have a receiving dead zone
  • a plurality of first infrared transceivers 14 are provided, and as long as one of them confirms receipt of the infrared signal, the receiving range of the infrared signal can be expanded.
  • the distance between the plurality of first infrared emitters is integrated to determine the distance between the infrared smart pen and the touch display screen, and infrared is realized. While the smart pen communicates with the touch display screen, the distance between the infrared smart pen and the touch display screen is accurately determined.
  • the distance detecting method includes:
  • Step S201 The touch display screen emits an infrared signal outward.
  • the touch display screen transmits infrared signals through the first infrared emitter, and while the touch detection is performed by the first infrared receiver, the outward radiated energy can also be received by the second infrared receiver in the infrared smart pen.
  • Step S202 The infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal.
  • the second infrared receiver in the infrared smart pen can confirm the intensity of the received infrared signal in addition to confirming whether the infrared signal is received, and the intensity of the infrared signal is the basis for detecting the distance between the touch display screen and the infrared smart pen.
  • Step S203 The infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
  • the accuracy of the detection results of distances under different schemes is also different. For example, by touching the energy intensity distribution of the infrared signal in front of the display screen, the greater the intensity, the closer the touch screen is to the touch screen; the smaller the intensity, the farther the distance from the touch screen display, according to the infrared received by the second infrared receiver.
  • the total strength of the signal can be used to preliminarily determine the range value of the distance. Or integrating the signal strengths of the plurality of first infrared emitters, combined with the distribution of the respective first infrared emitters, to achieve accurate determination of the distance.
  • the distance between the plurality of first infrared emitters is integrated to determine the distance between the infrared smart pen and the touch display screen, and infrared is realized. While the smart pen communicates with the touch display screen, the distance between the infrared smart pen and the touch display screen is accurately determined.
  • FIG. 5 is a flowchart of a method for detecting a distance according to a third embodiment of the present invention.
  • the distance detecting method is used in the foregoing interaction device. Referring to FIG. 5, the distance detecting method includes:
  • Step S301 The touch display screen emits an infrared signal outward.
  • the infrared signal emitted by the touch screen display carries the infrared signal transmission power and the corresponding first infrared emission.
  • the transmit power can be pre-existed in the infrared smart pen, and the infrared smart pen can directly read from the stored data.
  • Step S302 The infrared smart pen confirms the infrared emitter corresponding to the infrared signal and the corresponding receiving intensity according to the detected infrared signal.
  • the infrared signal received by the second infrared receiver is processed by the smart pen microprocessor in the infrared smart pen, including decoding to obtain the data carried therein, and determining the receiving strength.
  • Step S303 The infrared smart pen confirms the relative position between the infrared emitters according to the signature of the infrared emitter corresponding to the infrared signal.
  • the smart pen microprocessor of the infrared smart pen stores the feature codes of the respective first infrared emitters and their corresponding mounting positions, and the relative positions of the first infrared emitters can be calculated based on the respective mounting positions.
  • Step S304 The infrared smart pen confirms the distance between the infrared smart pen and each of the infrared emitters according to the transmission power and the reception intensity of the infrared signal.
  • Step S305 Infrared smart pen according to the distance between each infrared emitter and the infrared emitter The relative position between the two confirms the distance between the infrared smart pen and the touch display.
  • FIG. 6 is a schematic diagram of the detection method of the distance detecting method provided by the present invention.
  • the plane ABCD is a plane where the display surface of the touch display screen is located, because the first infrared emitter and the display are displayed. The distance of the face is extremely small, so the first infrared emitter is considered to be in the plane ABCD.
  • O1, O2 and O3 respectively set a first infrared emitter, and O is an infrared smart pen, and the first infrared emitter can receive the infrared signals emitted by the three first infrared emitters in the space, O1, O2 and The relative position of O3 is determined.
  • the distance between O and O1, O2 and O3 can be confirmed by the received intensity, and the three-dimensional coordinate system in the space can be constructed.
  • the distance H between O and plane ABCD can be easily calculated. The specific calculation process No further explanation will be given here.
  • Step S306 The infrared smart pen confirms the working mode of the infrared smart pen according to the distance and feeds back to the touch display screen.
  • the infrared smart pen can confirm the working mode according to the distance. If the distance is very close, it can be judged that the user needs to enter the touch or writing operation and enter the writing mode; if the distance is far, the user needs to control the display content. , enter the mouse mode.
  • Step S307 The touch display screen performs mode switching according to the working mode.
  • the working mode of the infrared smart pen changes, the working mode of the touch display screen is switched and responded accordingly.
  • Figure 7 is a block diagram showing the structure of a distance detecting device according to a fourth embodiment of the present invention.
  • the distance detecting device includes a touch display screen 1 and an infrared smart pen 2;
  • Touch display 1 including:
  • a signal transmitting unit 121 configured to emit an infrared signal outward
  • Infrared Smart Pen 2 including:
  • the signal confirming unit 221 is configured to confirm the source and the receiving intensity of the infrared signal according to the detected infrared signal;
  • the distance calculating unit 222 is configured to confirm the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
  • the infrared signal emitted by the touch display screen carries the transmission power of the infrared signal and the characteristic code of the corresponding infrared emitter;
  • a signal confirmation unit configured to confirm an infrared emitter corresponding to the infrared signal and a corresponding receiving intensity according to the detected infrared signal
  • the distance calculation unit 222 includes:
  • a position confirmation module 2221 configured to confirm a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal;
  • the distance confirmation module 2222 is configured to confirm the distance between the infrared smart pen and each of the infrared emitters according to the transmit power and the received intensity of the infrared signal;
  • the spatial operation module 2223 is configured to confirm the distance between the infrared smart pen and the touch display screen according to the distance between each infrared emitter and the relative position between the infrared emitters.
  • the infrared smart pen 2 also includes:
  • the mode confirmation unit 223 is configured to confirm an operation mode of the infrared smart pen according to the distance and feed back to the touch display screen;
  • the mode switching unit 121 is configured to perform mode switching according to an operation mode.
  • the distance detecting device in the embodiment of the present invention is implemented based on the above-described distance detecting method.
  • the distance detecting device please refer to the embodiment of the distance detecting method.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

An interaction device, and a distance detection method and apparatus. The interaction device comprises a touch display screen (1) and an infrared smart pen (2). The touch display screen (1) comprises an infrared touch frame (11), an inside wall of the infrared touch frame (11) being provided with four infrared lamp strips (13), the infrared lamp strips (13) being provided with first infrared emitters (131) and first infrared receivers (132) corresponding in a one-to-one manner to perform touch detection. The infrared smart pen (2) comprises a smart pen microprocessor (22), a second infrared emitter (21) and a second infrared receiver (23), the second infrared emitter (21) and the second infrared receiver (23) being connected to the smart pen microprocessor (22), the second infrared receiver (23) being used for detecting infrared signals emitted by the first infrared emitters (131), the smart pen microprocessor (22) being used for processing the infrared signals received by the second infrared receiver (23) and controlling the second infrared emitter (21) to emit an infrared signal, the second infrared emitter (21) being used for emitting the infrared signal. The present invention implements communication between the infrared smart pen (2) and the touch display screen (1), and accurately determines the distance between the infrared smart pen (2) and the touch display screen (1).

Description

交互设备、距离检测方法和装置Interactive device, distance detecting method and device 技术领域Technical field
本发明涉及电子技术领域，尤其涉及一种交互设备、距离检测方法和装置。The present invention relates to the field of electronic technologies, and in particular, to an interaction device, a distance detecting method, and an apparatus.
背景技术Background technique
智能笔，是一款相对传统笔芯而言，具有匹配操作平台通信的多功能移动笔。请参考图1，其是现有技术方案中智能笔系统的框架图，智能笔3的内部集成有MCU(Microccontroller Unit，微控制单元)31和第一wifi(Wireless-Fidelity，无线保真)模块32，MCU31和第一wifi模块32通过USB(Universal Serial Bus，通用串行总线)方式连接，实现MCU31对第一wifi模块32的状态控制。智能笔3与显示设备4之间采用wifi通信，主要是2.4G频段。智能笔3的第一wifi模块32通过RF(Radio Frequency，射频)协议，与显示设备4的第二wifi模块41搭建成局域网，控制芯片42根据智能笔3发出的控制命令执行相应的操作，实现对应的功能。The smart pen is a multi-function mobile pen with matching operation platform communication compared with the traditional refill. Please refer to FIG. 1 , which is a frame diagram of a smart pen system in the prior art solution. The smart pen 3 is internally integrated with an MCU (Micro Ccontroller Unit) 31 and a first wifi (Wireless-Fidelity) module. 32. The MCU 31 and the first wifi module 32 are connected by a USB (Universal Serial Bus) method to implement state control of the first wifi module 32 by the MCU 31. The smart pen 3 and the display device 4 use wifi communication, mainly in the 2.4G frequency band. The first wifi module 32 of the smart pen 3 is built into the local area network by the second wifi module 41 of the display device 4 through the RF (Radio Frequency) protocol, and the control chip 42 performs corresponding operations according to the control command issued by the smart pen 3 to implement the corresponding operation. Corresponding function.
然而，现有技术方案要求智能笔端和显示设备端均内置wifi模块，价格成本较高，因采用wifi频段，受射频干扰影响较大，使得显示设备无法准确执行智能笔端发送的控制命令。同时，基于wifi的智能笔只要在连接状态即可实现信号的连接，没有对设备间距离的准确判断。However, the prior art solution requires that the smart pen end and the display device end have a built-in wifi module, and the price is relatively high. Due to the use of the wifi band, the radio frequency interference is greatly affected, so that the display device cannot accurately execute the control command sent by the smart pen end. At the same time, the wifi-based smart pen can realize the signal connection as long as it is connected, and there is no accurate judgment of the distance between the devices.
发明内容Summary of the invention
有鉴于此，本发明实施例提供一种交互设备、距离检测方法和装置，以准 确判断红外智能笔与触摸显示屏之间的距离。In view of this, an embodiment of the present invention provides an interaction device, a distance detecting method, and a device, which are Make sure the distance between the infrared smart pen and the touch display.
第一方面采用一种交互设备，包括触摸显示屏和红外智能笔；The first aspect adopts an interactive device, including a touch display screen and an infrared smart pen;
所述触摸显示屏包括红外触摸框，所述红外触摸框的内侧壁设置有四个红外灯条，四个红外灯条分别设置于所述内侧壁的四个方向；The touch display screen includes an infrared touch frame, and the inner side wall of the infrared touch frame is provided with four infrared light bars, and the four infrared light bars are respectively disposed in four directions of the inner side wall;
相对设置的两个所述红外灯条上设置有一一对应的第一红外发射器和第一红外接收器，用于通过所述第一红外发射器和第一红外接收器形成触控识别区域进行触控检测；a pair of the first infrared emitter and the first infrared receiver are disposed on the two opposite infrared light strips for forming a touch recognition area through the first infrared emitter and the first infrared receiver Perform touch detection;
所述红外智能笔包括智能笔微处理器、第二红外发射器和第二红外接收器，所述第二红外发射器和第二红外接收器均与所述智能笔微处理器相连；The infrared smart pen includes a smart pen microprocessor, a second infrared emitter and a second infrared receiver, and the second infrared emitter and the second infrared receiver are both connected to the smart pen microprocessor;
所述第二红外接收器，用于检测所述第一红外发射器发射的红外信号；The second infrared receiver is configured to detect an infrared signal emitted by the first infrared emitter;
所述智能笔微处理器，用于处理所述第二红外接收器接收的红外信号，并控制所述第二红外发射器发射红外信号；The smart pen microprocessor is configured to process an infrared signal received by the second infrared receiver, and control the second infrared emitter to emit an infrared signal;
所述第二红外发射器，用于向外发射红外信号。The second infrared emitter is configured to emit an infrared signal outward.
其中，所述触摸显示屏还包括第一红外收发器，所述第一红外收发器设置于所述红外触摸框的外侧并与所述触摸显示屏的显示面垂直，用于接收所述触摸显示屏外部的信号源发射的红外信号。The touch display screen further includes a first infrared transceiver, the first infrared transceiver being disposed outside the infrared touch frame and perpendicular to a display surface of the touch display screen for receiving the touch display An infrared signal emitted by a signal source external to the screen.
其中，所述第一红外收发器的个数至少为两个。The number of the first infrared transceivers is at least two.
其中，所述第二红外接收器的个数为至少2个。The number of the second infrared receivers is at least two.
第二方面采用一种距离检测方法，包括：The second aspect uses a distance detection method, including:
触摸显示屏向外发射红外信号；The touch screen emits an infrared signal outward;
红外智能笔根据检测到的红外信号确认所述红外信号的来源和接收强度；The infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal;
所述红外智能笔根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离。 The infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
其中，所述触摸显示屏向外发射的红外信号中携带有所述红外信号的发射功率和对应的红外发射器的特征码；The infrared signal emitted by the touch display screen carries the transmission power of the infrared signal and the characteristic code of the corresponding infrared emitter;
所述红外智能笔根据检测到的红外信号确认所述红外信号的来源和接收强度，包括：The infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal, including:
所述红外智能笔根据检测到的红外信号确认所述红外信号对应的红外发射器和对应的接收强度；The infrared smart pen confirms the infrared emitter corresponding to the infrared signal and the corresponding receiving intensity according to the detected infrared signal;
所述红外智能笔根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离，包括：The infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal, including:
所述红外智能笔根据所述红外信号对应的红外发射器的特征码确认所述红外发射器之间的相对位置；The infrared smart pen confirms a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal;
所述红外智能笔根据所述红外信号的发射功率和接收强度确认所述红外智能笔与各个所述红外发射器之间的距离；The infrared smart pen confirms a distance between the infrared smart pen and each of the infrared emitters according to a transmission power and a reception intensity of the infrared signal;
所述红外智能笔根据与各个所述红外发射器之间的距离以及所述红外发射器之间的相对位置确认所述红外智能笔与所述触摸显示屏的距离。The infrared smart pen confirms a distance between the infrared smart pen and the touch display screen according to a distance between each of the infrared emitters and a relative position between the infrared emitters.
其中，所述红外智能笔根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离之后，还包括：After the infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the received intensity of the infrared signal, the infrared smart pen further includes:
所述红外智能笔根据所述距离确认所述红外智能笔的工作模式并反馈到所述触摸显示屏；The infrared smart pen confirms an operation mode of the infrared smart pen according to the distance and feeds back to the touch display screen;
所述触摸显示屏根据所述工作模式进行模式切换。The touch display screen performs mode switching according to the working mode.
第三方面采用一种距离检测装置，包括触摸显示屏和红外智能笔；The third aspect adopts a distance detecting device, including a touch display screen and an infrared smart pen;
所述触摸显示屏，包括：The touch display screen includes:
信号发射单元，用于向外发射红外信号；a signal transmitting unit for transmitting an infrared signal outward;
所述红外智能笔，包括： The infrared smart pen includes:
信号确认单元，用于根据检测到的红外信号确认所述红外信号的来源和接收强度；a signal confirming unit, configured to confirm a source and a receiving strength of the infrared signal according to the detected infrared signal;
距离计算单元，用于根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离。a distance calculating unit, configured to confirm a distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
其中，所述触摸显示屏向外发射的红外信号中携带有所述红外信号的发射功率和对应的红外发射器的特征码；The infrared signal emitted by the touch display screen carries the transmission power of the infrared signal and the characteristic code of the corresponding infrared emitter;
所述信号确认单元，具体用于根据检测到的红外信号确认所述红外信号对应的红外发射器和对应的接收强度；The signal confirming unit is specifically configured to confirm, according to the detected infrared signal, an infrared emitter corresponding to the infrared signal and a corresponding receiving intensity;
所述距离计算单元，包括：The distance calculation unit includes:
位置确认模块，用于根据所述红外信号对应的红外发射器的特征码确认所述红外发射器之间的相对位置；a position confirmation module, configured to confirm a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal;
距离确认模块，用于根据所述红外信号的发射功率和接收强度确认所述红外智能笔与各个所述红外发射器之间的距离；a distance confirmation module, configured to confirm a distance between the infrared smart pen and each of the infrared emitters according to a transmit power and a receive intensity of the infrared signal;
空间运算模块，用于根据所述与各个所述红外发射器之间的距离以及所述红外发射器之间的相对位置确认所述红外智能笔与所述触摸显示屏的距离。And a spatial operation module, configured to confirm a distance between the infrared smart pen and the touch display screen according to the distance between the infrared emitters and the relative position between the infrared emitters.
其中，所述红外智能笔，还包括：The infrared smart pen further includes:
模式确认单元，用于根据所述距离确认所述红外智能笔的工作模式并反馈到所述触摸显示屏；a mode confirmation unit, configured to confirm an operation mode of the infrared smart pen according to the distance and feed back to the touch display screen;
所述触摸显示屏，还包括：The touch display screen further includes:
模式切换单元，用于根据所述工作模式进行模式切换。And a mode switching unit, configured to perform mode switching according to the working mode.
本发明实施例提供的交互设备、距离检测方法和装置，通过对触摸显示屏中第一红外发射器发射的红外信号的强度检测，综合多个第一红外发射器的距离判断红外智能笔与触摸显示屏之间的距离，在实现红外智能笔与触摸显示屏 的通信的同时，准确判断红外智能笔与触摸显示屏之间的距离。The interaction device, the distance detecting method and the device provided by the embodiment of the invention determine the intensity of the infrared signal emitted by the first infrared emitter in the touch screen display, and integrate the distances of the plurality of first infrared emitters to determine the infrared smart pen and the touch The distance between the display screens, in the realization of infrared smart pen and touch display At the same time of communication, accurately determine the distance between the infrared smart pen and the touch display.
附图说明DRAWINGS
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述，本发明的其它特征、目的和优点将会变得更明显：Other features, objects, and advantages of the present invention will become more apparent from the Detailed Description of Description
图1是现有技术方案中智能笔系统的框架图；1 is a frame diagram of a smart pen system in a prior art solution;
图2是本发明实施例一提供的一种交互设备的结构示意图；2 is a schematic structural diagram of an interaction device according to Embodiment 1 of the present invention;
图3是本发明实施例一提供的一种交互设备中触摸显示屏的结构示意图；3 is a schematic structural diagram of a touch display screen in an interactive device according to Embodiment 1 of the present invention;
图4是本发明实施例二提供的一种距离检测方法的方法流程图；4 is a flowchart of a method for detecting a distance according to Embodiment 2 of the present invention;
图5是本发明实施例三提供的一种距离检测方法的方法流程图；5 is a flowchart of a method for detecting a distance according to Embodiment 3 of the present invention;
图6是本发明实施例三提供的一种距离检测方法的检测原理图；6 is a schematic diagram of detection of a distance detecting method according to Embodiment 3 of the present invention;
图7是本发明实施例四提供的一种距离检测装置的结构方框图。FIG. 7 is a block diagram showing the structure of a distance detecting apparatus according to Embodiment 4 of the present invention.
具体实施方式detailed description
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内容。The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should also be noted that, for ease of description, only some, but not all, of the present invention are shown in the drawings.
实施例一 Embodiment 1
图2是本发明实施例一提供的一种交互设备的结构示意图，参考图2，本发明实施例提供交互设备，包括触摸显示屏1和红外智能笔2；2 is a schematic structural diagram of an interaction device according to Embodiment 1 of the present invention. Referring to FIG. 2, an embodiment of the present invention provides an interaction device, including a touch display screen 1 and an infrared smart pen 2;
触摸显示屏1包括红外触摸框11，红外触摸框11的内侧壁设置有四个红外灯条13，四个红外灯条13分别设置于内侧壁的四个方向； The touch display screen 1 includes an infrared touch frame 11 , and the inner side wall of the infrared touch frame 11 is provided with four infrared light strips 13 , and the four infrared light strips 13 are respectively disposed in four directions of the inner side wall;
相对设置的两个红外灯条13上设置有一一对应的第一红外发射器131和第一红外接收器132，用于通过第一红外发射器131和第一红外接收器132形成触控识别区域进行触控检测；A pair of first infrared emitters 131 and a first infrared receiver 132 are disposed on the two opposite infrared light strips 13 for forming touch recognition by the first infrared emitter 131 and the first infrared receiver 132. Area for touch detection;
红外智能笔2包括智能笔微处理器22、第二红外发射器21和第二红外接收器23，第二红外发射器21和第二红外接收器23均与智能笔微处理器22相连；The infrared smart pen 2 includes a smart pen microprocessor 22, a second infrared emitter 21 and a second infrared receiver 23, and the second infrared emitter 21 and the second infrared receiver 23 are both connected to the smart pen microprocessor 22;
第二红外接收器23，用于检测第一红外发射器131发射的红外信号；a second infrared receiver 23, configured to detect an infrared signal emitted by the first infrared emitter 131;
智能笔微处理器22，用于处理第二红外接收器23接收的红外信号，并控制第二红外发射器21发射红外信号；a smart pen microprocessor 22, configured to process the infrared signal received by the second infrared receiver 23, and control the second infrared emitter 21 to emit an infrared signal;
第二红外发射器21，用于向外发射红外信号。The second infrared emitter 21 is configured to emit an infrared signal outward.
红外触摸框11上一一对应设置的第一红外发射器131和第一红外接收器132能形成基于红外线的能量网格，能量网格可以检测触控操作，当有触控操作发生时，能量网格的结构发生变化，发生变化的位置即为触控操作的位置。在第一红外发射器131和第一红外接收器132之间，能量并不能严格约束在标准的网格结构中，而是会向外辐射，实际只能约束在某一个角度，外部能检测到的能量越强，说明离显示面的距离越近。在本方案中，可以根据外部检测到的能量强度判断红外智能笔2与触摸显示屏1之间的距离，并且为测量准确，在红外智能笔2设置多个第二红外接收器23分别朝向不同的方向，以区分不同方向发射不同的第一红外发射器131发射的红外信号，对于第二红外发射器21而言，其不确认发射出的红外信号能被哪个红外接收器接收到，本方案中所说的向外发射红外信号只能控制自身广播发送红外信号以被红外智能笔2之外的红外接收器接收到，至于具体对第二红外发射器21发射的红外信号的响应不由红外智能笔2决定。The first infrared emitter 131 and the first infrared receiver 132 correspondingly disposed on the infrared touch frame 11 can form an infrared-based energy grid, and the energy grid can detect the touch operation, when a touch operation occurs, the energy The structure of the grid changes, and the position where the change occurs is the position of the touch operation. Between the first infrared emitter 131 and the first infrared receiver 132, the energy is not strictly constrained in the standard grid structure, but is radiated outward, and can only be constrained at a certain angle, and the external can be detected. The stronger the energy, the closer the distance from the display surface. In the present solution, the distance between the infrared smart pen 2 and the touch display screen 1 can be determined according to the externally detected energy intensity, and for the measurement accuracy, the plurality of second infrared receivers 23 are respectively disposed in the infrared smart pen 2 to face different directions. The direction of the infrared signal emitted by the different first infrared emitters 131 is distinguished by different directions. For the second infrared emitter 21, it does not confirm which infrared receiver the emitted infrared signal can be received by the infrared receiver. The outward-emitting infrared signal mentioned in the above can only control the broadcast of the infrared signal to be received by the infrared receiver outside the infrared smart pen 2, and the response to the infrared signal emitted by the second infrared emitter 21 is not affected by the infrared intelligence. Pen 2 decided.
另外，如图3所示，触摸显示屏1还包括第一红外收发器14，第一红外收 发器14设置于红外触摸框11的外侧并与触摸显示屏1的显示面垂直，用于接收触摸显示屏1外部的信号源发射的红外信号。In addition, as shown in FIG. 3, the touch display screen 1 further includes a first infrared transceiver 14, the first infrared receiver The transmitter 14 is disposed outside the infrared touch frame 11 and perpendicular to the display surface of the touch display screen 1 for receiving an infrared signal emitted by a signal source external to the touch screen display 1.
第一红外收发器14设置于红外触摸框11的外侧并与触摸显示屏1的显示面垂直，用于接收触摸显示屏1外部的信号源发射的红外信号。The first infrared transceiver 14 is disposed outside the infrared touch frame 11 and perpendicular to the display surface of the touch display screen 1 for receiving an infrared signal emitted by a signal source external to the touch screen display 1.
该第一红外收发器14设置于红外触摸框11外表面，第一红外收发器14的光敏元件(图未示)的朝向垂直上述显示面。当外部的信号源(主要是红外智能笔2)与红外触摸框11的距离过远时，红外触摸框11的第一红外接收器132难以接收到信号源发出的红外信号，信号源发射的红外信号可以通过第一红外收发器14接收，第一红外收发器14可以接收显示面正前方15米及较大角度范围内的红外信号。同时，第一红外收发器14还可向红外智能笔2发送红外信号。The first infrared transceiver 14 is disposed on an outer surface of the infrared touch frame 11. The photosensitive element (not shown) of the first infrared transceiver 14 is oriented perpendicular to the display surface. When the distance between the external signal source (mainly the infrared smart pen 2) and the infrared touch frame 11 is too far, the first infrared receiver 132 of the infrared touch frame 11 is difficult to receive the infrared signal emitted by the signal source, and the infrared light emitted by the signal source The signal can be received by the first infrared transceiver 14, which can receive infrared signals within 15 meters of the display surface and over a wide range of angles. At the same time, the first infrared transceiver 14 can also transmit an infrared signal to the infrared smart pen 2.
其中，第一红外收发器14的个数至少为两个。The number of the first infrared transceivers 14 is at least two.
考虑到单个第一红外收发器14可能存在接收盲区，设置多个第一红外收发器14，只要其中一个确认接收到红外信号即可，可以扩大红外信号的接收范围。Considering that a single first infrared transceiver 14 may have a receiving dead zone, a plurality of first infrared transceivers 14 are provided, and as long as one of them confirms receipt of the infrared signal, the receiving range of the infrared signal can be expanded.
触摸显示屏1中所有和红外信号相关的发送和接收均通过信号处理器12进行处理。All transmissions and receptions associated with the infrared signals in touch screen display 1 are processed by signal processor 12.
综上所述，通过对触摸显示屏中第一红外发射器发射的红外信号的强度检测，综合多个第一红外发射器的距离判断红外智能笔与触摸显示屏之间的距离，在实现红外智能笔与触摸显示屏的通信的同时，准确判断红外智能笔与触摸显示屏之间的距离。In summary, by detecting the intensity of the infrared signal emitted by the first infrared emitter in the touch display screen, the distance between the plurality of first infrared emitters is integrated to determine the distance between the infrared smart pen and the touch display screen, and infrared is realized. While the smart pen communicates with the touch display screen, the distance between the infrared smart pen and the touch display screen is accurately determined.
实施例二 Embodiment 2
图4是本发明实施例二提供的一种距离检测方法的方法流程图，本发明实施例提供的距离检测方法，可以用于前述的交互设备，本实施例中基于在前述 交互设备中的实现过程进行阐述。参考图4，该距离检测方法，包括：4 is a flowchart of a method for detecting a distance according to a second embodiment of the present invention. The distance detection method provided by the embodiment of the present invention may be used in the foregoing interaction device, which is based on the foregoing in this embodiment. The implementation process in the interactive device is explained. Referring to FIG. 4, the distance detecting method includes:
步骤S201：触摸显示屏向外发射红外信号。Step S201: The touch display screen emits an infrared signal outward.
触摸显示屏通过第一红外发射器发射的红外信号，在通过第一红外接收器实现触控检测的同时，向外辐射的能量还可被红外智能笔中的第二红外接收器接收到。The touch display screen transmits infrared signals through the first infrared emitter, and while the touch detection is performed by the first infrared receiver, the outward radiated energy can also be received by the second infrared receiver in the infrared smart pen.
步骤S202：红外智能笔根据检测到的红外信号确认红外信号的来源和接收强度。Step S202: The infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal.
红外智能笔中的第二红外接收器除了可以确认是否接收到红外信号，还可确认到接收到的红外信号的强度，红外信号的强度是检测触摸显示屏与红外智能笔之间距离的基础。The second infrared receiver in the infrared smart pen can confirm the intensity of the received infrared signal in addition to confirming whether the infrared signal is received, and the intensity of the infrared signal is the basis for detecting the distance between the touch display screen and the infrared smart pen.
步骤S203：红外智能笔根据红外信号的来源和接收强度确认红外智能笔与触摸显示屏的距离。Step S203: The infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
具体的距离检测的方案有多种，不同的方案下距离的检测的结果的精确度也不同。例如，通过触摸显示屏前方红外信号的能量强度分布进行判断，强度越大，距离触摸显示屏越近；强度越小，距离触摸显示屏的距离越远，根据第二红外接收器接收到的红外信号的总的强度，可以初步判断距离的范围值。或者综合多个第一红外发射器的信号强度，结合各个第一红外发射器的分布，实现距离的精确判断。There are a variety of specific distance detection schemes, and the accuracy of the detection results of distances under different schemes is also different. For example, by touching the energy intensity distribution of the infrared signal in front of the display screen, the greater the intensity, the closer the touch screen is to the touch screen; the smaller the intensity, the farther the distance from the touch screen display, according to the infrared received by the second infrared receiver. The total strength of the signal can be used to preliminarily determine the range value of the distance. Or integrating the signal strengths of the plurality of first infrared emitters, combined with the distribution of the respective first infrared emitters, to achieve accurate determination of the distance.
综上所述，通过对触摸显示屏中第一红外发射器发射的红外信号的强度检测，综合多个第一红外发射器的距离判断红外智能笔与触摸显示屏之间的距离，在实现红外智能笔与触摸显示屏的通信的同时，准确判断红外智能笔与触摸显示屏之间的距离。 In summary, by detecting the intensity of the infrared signal emitted by the first infrared emitter in the touch display screen, the distance between the plurality of first infrared emitters is integrated to determine the distance between the infrared smart pen and the touch display screen, and infrared is realized. While the smart pen communicates with the touch display screen, the distance between the infrared smart pen and the touch display screen is accurately determined.
实施例三 Embodiment 3
图5是本发明实施例三提供的一种距离检测方法的方法流程图，本发明实施例提供的距离检测方法，用于前述的交互设备，参考图5，该距离检测方法，包括：FIG. 5 is a flowchart of a method for detecting a distance according to a third embodiment of the present invention. The distance detecting method is used in the foregoing interaction device. Referring to FIG. 5, the distance detecting method includes:
步骤S301：触摸显示屏向外发射红外信号。Step S301: The touch display screen emits an infrared signal outward.
为保证第一红外发射器发射的红外信号被精确识别，并对红外信号的强度变化有精确判断，触摸显示屏向外发射的红外信号中携带有红外信号的发射功率和对应的第一红外发射器的特征码。当然，发射功率可以预存在红外智能笔中，由红外智能笔直接从自身存储数据中读取即可。In order to ensure that the infrared signal emitted by the first infrared emitter is accurately identified and the intensity variation of the infrared signal is accurately determined, the infrared signal emitted by the touch screen display carries the infrared signal transmission power and the corresponding first infrared emission. The signature of the device. Of course, the transmit power can be pre-existed in the infrared smart pen, and the infrared smart pen can directly read from the stored data.
步骤S302：红外智能笔根据检测到的红外信号确认红外信号对应的红外发射器和对应的接收强度。Step S302: The infrared smart pen confirms the infrared emitter corresponding to the infrared signal and the corresponding receiving intensity according to the detected infrared signal.
第二红外接收器接收到的红外信号，由红外智能笔中的智能笔微处理器进行处理，包括进行解码获取其中携带的数据，对接收强度进行判断等。The infrared signal received by the second infrared receiver is processed by the smart pen microprocessor in the infrared smart pen, including decoding to obtain the data carried therein, and determining the receiving strength.
步骤S303：红外智能笔根据红外信号对应的红外发射器的特征码确认红外发射器之间的相对位置。Step S303: The infrared smart pen confirms the relative position between the infrared emitters according to the signature of the infrared emitter corresponding to the infrared signal.
在红外智能笔的智能笔微处理器中保存有各个第一红外发射器的特征码及其对应的安装位置，基于各个安装位置可以计算第一红外发射器的相对位置。The smart pen microprocessor of the infrared smart pen stores the feature codes of the respective first infrared emitters and their corresponding mounting positions, and the relative positions of the first infrared emitters can be calculated based on the respective mounting positions.
步骤S304：红外智能笔根据红外信号的发射功率和接收强度确认红外智能笔与各个红外发射器之间的距离。Step S304: The infrared smart pen confirms the distance between the infrared smart pen and each of the infrared emitters according to the transmission power and the reception intensity of the infrared signal.
在红外信号的传播过程中存在能量的衰减，离第一红外发射器越近，接收强度越接近发射功率，衰减的程度与距离成正比，在此，根据发射功率和接收强度，可以判断出第一红外发射器和第二红外接收器之间的距离。In the process of infrared signal propagation, there is energy attenuation. The closer to the first infrared emitter, the closer the receiving intensity is to the transmitting power, and the degree of attenuation is proportional to the distance. Here, according to the transmitting power and the receiving intensity, the first can be judged. The distance between an infrared emitter and a second infrared receiver.
步骤S305：红外智能笔根据与各个红外发射器之间的距离以及红外发射器 之间的相对位置确认红外智能笔与触摸显示屏的距离。Step S305: Infrared smart pen according to the distance between each infrared emitter and the infrared emitter The relative position between the two confirms the distance between the infrared smart pen and the touch display.
请参考图6，其是本发明提供的一种距离检测方法的检测原理图，如图所示，平面ABCD为触摸显示屏的显示面所在的平面，在此，因为第一红外发射器与显示面的距离极小，故将第一红外发射器视为位于平面ABCD中。其中O1、O2和O3分别设置一个第一红外发射器，O处为红外智能笔，第一红外发射器只要能接收到三个第一红外发射器发射的红外信号，在空间内O1、O2和O3的相对位置是确定的，O与O1、O2和O3之间的距离可以通过接收强度确认，构建空间内的三维坐标系，可以轻松算出O与平面ABCD之间的距离H，具体的计算过程在此不做进一步说明。Please refer to FIG. 6 , which is a schematic diagram of the detection method of the distance detecting method provided by the present invention. As shown in the figure, the plane ABCD is a plane where the display surface of the touch display screen is located, because the first infrared emitter and the display are displayed. The distance of the face is extremely small, so the first infrared emitter is considered to be in the plane ABCD. Wherein O1, O2 and O3 respectively set a first infrared emitter, and O is an infrared smart pen, and the first infrared emitter can receive the infrared signals emitted by the three first infrared emitters in the space, O1, O2 and The relative position of O3 is determined. The distance between O and O1, O2 and O3 can be confirmed by the received intensity, and the three-dimensional coordinate system in the space can be constructed. The distance H between O and plane ABCD can be easily calculated. The specific calculation process No further explanation will be given here.
步骤S306：红外智能笔根据距离确认红外智能笔的工作模式并反馈到触摸显示屏。Step S306: The infrared smart pen confirms the working mode of the infrared smart pen according to the distance and feeds back to the touch display screen.
在计算出距离之后，红外智能笔可以根据距离确认工作模式，如果距离很近，可以判断用户需要进入触控或书写操作，进入书写模式；如果距离较远，可以判断用户需要对显示内容进行控制，进入鼠标模式。After calculating the distance, the infrared smart pen can confirm the working mode according to the distance. If the distance is very close, it can be judged that the user needs to enter the touch or writing operation and enter the writing mode; if the distance is far, the user needs to control the display content. , enter the mouse mode.
步骤S307：触摸显示屏根据工作模式进行模式切换。Step S307: The touch display screen performs mode switching according to the working mode.
红外智能笔的工作模式进行变化时，触摸显示屏的工作模式进行对应的切换和响应。When the working mode of the infrared smart pen changes, the working mode of the touch display screen is switched and responded accordingly.
实施例四 Embodiment 4
图7是本发明实施例四提供的一种距离检测装置的结构方框图，，参考图7，该距离检测装置包括触摸显示屏1和红外智能笔2；Figure 7 is a block diagram showing the structure of a distance detecting device according to a fourth embodiment of the present invention. Referring to Figure 7, the distance detecting device includes a touch display screen 1 and an infrared smart pen 2;
触摸显示屏1，包括： Touch display 1, including:
信号发射单元121，用于向外发射红外信号； a signal transmitting unit 121, configured to emit an infrared signal outward;
红外智能笔2，包括： Infrared Smart Pen 2, including:
信号确认单元221，用于根据检测到的红外信号确认红外信号的来源和接收强度；The signal confirming unit 221 is configured to confirm the source and the receiving intensity of the infrared signal according to the detected infrared signal;
距离计算单元222，用于根据红外信号的来源和接收强度确认红外智能笔与触摸显示屏的距离。The distance calculating unit 222 is configured to confirm the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
其中，触摸显示屏向外发射的红外信号中携带有红外信号的发射功率和对应的红外发射器的特征码；Wherein, the infrared signal emitted by the touch display screen carries the transmission power of the infrared signal and the characteristic code of the corresponding infrared emitter;
信号确认单元，具体用于根据检测到的红外信号确认红外信号对应的红外发射器和对应的接收强度；a signal confirmation unit, configured to confirm an infrared emitter corresponding to the infrared signal and a corresponding receiving intensity according to the detected infrared signal;
距离计算单元222，包括：The distance calculation unit 222 includes:
位置确认模块2221，用于根据红外信号对应的红外发射器的特征码确认红外发射器之间的相对位置；a position confirmation module 2221, configured to confirm a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal;
距离确认模块2222，用于根据红外信号的发射功率和接收强度确认红外智能笔与各个红外发射器之间的距离；The distance confirmation module 2222 is configured to confirm the distance between the infrared smart pen and each of the infrared emitters according to the transmit power and the received intensity of the infrared signal;
空间运算模块2223，用于根据与各个红外发射器之间的距离以及红外发射器之间的相对位置确认红外智能笔与触摸显示屏的距离。The spatial operation module 2223 is configured to confirm the distance between the infrared smart pen and the touch display screen according to the distance between each infrared emitter and the relative position between the infrared emitters.
其中，红外智能笔2，还包括：Among them, the infrared smart pen 2 also includes:
模式确认单元223，用于根据距离确认红外智能笔的工作模式并反馈到触摸显示屏；The mode confirmation unit 223 is configured to confirm an operation mode of the infrared smart pen according to the distance and feed back to the touch display screen;
触摸显示屏1，还包括：Touching the display 1, also includes:
模式切换单元121，用于根据工作模式进行模式切换。The mode switching unit 121 is configured to perform mode switching according to an operation mode.
本发明实施例中的距离检测装置基于前述的距离检测方法实现，在距离检测装置中未尽的说明，请参考前述距离检测方法的实施例。 The distance detecting device in the embodiment of the present invention is implemented based on the above-described distance detecting method. For the description of the distance detecting device, please refer to the embodiment of the distance detecting method.
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。 Note that the above are only the preferred embodiments of the present invention and the technical principles applied thereto. Those skilled in the art will appreciate that the invention is not limited to the specific embodiments described herein, and that various modifications, changes and substitutions may be made without departing from the scope of the invention. Therefore, the present invention has been described in detail by the above embodiments, but the present invention is not limited to the above embodiments, and other equivalent embodiments may be included without departing from the inventive concept. The scope is determined by the scope of the appended claims.

Claims (10)

  1. 一种交互设备，其特征在于，包括触摸显示屏和红外智能笔；An interactive device, comprising: a touch display screen and an infrared smart pen;
    所述触摸显示屏包括红外触摸框，所述红外触摸框的内侧壁设置有四个红外灯条，四个红外灯条分别设置于所述内侧壁的四个方向；The touch display screen includes an infrared touch frame, and the inner side wall of the infrared touch frame is provided with four infrared light bars, and the four infrared light bars are respectively disposed in four directions of the inner side wall;
    相对设置的两个所述红外灯条上设置有一一对应的第一红外发射器和第一红外接收器，用于通过所述第一红外发射器和第一红外接收器形成触控识别区域进行触控检测；a pair of the first infrared emitter and the first infrared receiver are disposed on the two opposite infrared light strips for forming a touch recognition area through the first infrared emitter and the first infrared receiver Perform touch detection;
    所述红外智能笔包括智能笔微处理器、第二红外发射器和第二红外接收器，所述第二红外发射器和第二红外接收器均与所述智能笔微处理器相连；The infrared smart pen includes a smart pen microprocessor, a second infrared emitter and a second infrared receiver, and the second infrared emitter and the second infrared receiver are both connected to the smart pen microprocessor;
    所述第二红外接收器，用于检测所述第一红外发射器发射的红外信号；The second infrared receiver is configured to detect an infrared signal emitted by the first infrared emitter;
    所述智能笔微处理器，用于处理所述第二红外接收器接收的红外信号，并控制所述第二红外发射器发射红外信号；The smart pen microprocessor is configured to process an infrared signal received by the second infrared receiver, and control the second infrared emitter to emit an infrared signal;
    所述第二红外发射器，用于向外发射红外信号。The second infrared emitter is configured to emit an infrared signal outward.
  2. 根据权利要求1所述的交互设备，其特征在于，所述触摸显示屏还包括第一红外收发器，所述第一红外收发器设置于所述红外触摸框的外侧并与所述触摸显示屏的显示面垂直，用于接收所述触摸显示屏外部的信号源发射的红外信号。The interactive device according to claim 1, wherein the touch display screen further comprises a first infrared transceiver, the first infrared transceiver being disposed outside the infrared touch frame and with the touch display The display surface is vertical for receiving an infrared signal emitted by a signal source external to the touch display screen.
  3. 根据权利要求2所述的交互设备，其特征在于，所述第一红外收发器的个数至少为两个。The interactive device according to claim 2, wherein the number of the first infrared transceivers is at least two.
  4. 根据权利要求1所述的交互设备，其特征在于，所述第二红外接收器的个数为至少2个。The interactive device according to claim 1, wherein the number of the second infrared receivers is at least two.
  5. 一种距离检测方法，其特征在于，包括：A distance detecting method, comprising:
    触摸显示屏向外发射红外信号；The touch screen emits an infrared signal outward;
    红外智能笔根据检测到的红外信号确认所述红外信号的来源和接收强度； The infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal;
    所述红外智能笔根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离。The infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
  6. 根据权利要求5所述的距离检测方法，其特征在于，所述触摸显示屏向外发射的红外信号中携带有所述红外信号的发射功率和对应的红外发射器的特征码；The distance detecting method according to claim 5, wherein the infrared signal emitted by the touch display screen carries the transmitting power of the infrared signal and the characteristic code of the corresponding infrared emitter;
    所述红外智能笔根据检测到的红外信号确认所述红外信号的来源和接收强度，包括：The infrared smart pen confirms the source and the receiving intensity of the infrared signal according to the detected infrared signal, including:
    所述红外智能笔根据检测到的红外信号确认所述红外信号对应的红外发射器和对应的接收强度；The infrared smart pen confirms the infrared emitter corresponding to the infrared signal and the corresponding receiving intensity according to the detected infrared signal;
    所述红外智能笔根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离，包括：The infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal, including:
    所述红外智能笔根据所述红外信号对应的红外发射器的特征码确认所述红外发射器之间的相对位置；The infrared smart pen confirms a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal;
    所述红外智能笔根据所述红外信号的发射功率和接收强度确认所述红外智能笔与各个所述红外发射器之间的距离；The infrared smart pen confirms a distance between the infrared smart pen and each of the infrared emitters according to a transmission power and a reception intensity of the infrared signal;
    所述红外智能笔根据与各个所述红外发射器之间的距离以及所述红外发射器之间的相对位置确认所述红外智能笔与所述触摸显示屏的距离。The infrared smart pen confirms a distance between the infrared smart pen and the touch display screen according to a distance between each of the infrared emitters and a relative position between the infrared emitters.
  7. 根据权利要求5所述的距离检测方法，其特征在于，所述红外智能笔根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离之后，还包括：The distance detecting method according to claim 5, wherein after the infrared smart pen confirms the distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal, the method further includes:
    所述红外智能笔根据所述距离确认所述红外智能笔的工作模式并反馈到所述触摸显示屏；The infrared smart pen confirms an operation mode of the infrared smart pen according to the distance and feeds back to the touch display screen;
    所述触摸显示屏根据所述工作模式进行模式切换。 The touch display screen performs mode switching according to the working mode.
  8. 一种距离检测装置，其特征在于，包括触摸显示屏和红外智能笔；A distance detecting device, comprising: a touch display screen and an infrared smart pen;
    所述触摸显示屏，包括：The touch display screen includes:
    信号发射单元，用于向外发射红外信号；a signal transmitting unit for transmitting an infrared signal outward;
    所述红外智能笔，包括：The infrared smart pen includes:
    信号确认单元，用于根据检测到的红外信号确认所述红外信号的来源和接收强度；a signal confirming unit, configured to confirm a source and a receiving strength of the infrared signal according to the detected infrared signal;
    距离计算单元，用于根据所述红外信号的来源和接收强度确认所述红外智能笔与所述触摸显示屏的距离。a distance calculating unit, configured to confirm a distance between the infrared smart pen and the touch display screen according to the source and the receiving intensity of the infrared signal.
  9. 根据权利要求8所述的距离检测装置，其特征在于，所述触摸显示屏向外发射的红外信号中携带有所述红外信号的发射功率和对应的红外发射器的特征码；The distance detecting device according to claim 8, wherein the infrared signal emitted by the touch display screen carries the transmitting power of the infrared signal and the characteristic code of the corresponding infrared emitter;
    所述信号确认单元，具体用于根据检测到的红外信号确认所述红外信号对应的红外发射器和对应的接收强度；The signal confirming unit is specifically configured to confirm, according to the detected infrared signal, an infrared emitter corresponding to the infrared signal and a corresponding receiving intensity;
    所述距离计算单元，包括：The distance calculation unit includes:
    位置确认模块，用于根据所述红外信号对应的红外发射器的特征码确认所述红外发射器之间的相对位置；a position confirmation module, configured to confirm a relative position between the infrared emitters according to a signature of the infrared emitter corresponding to the infrared signal;
    距离确认模块，用于根据所述红外信号的发射功率和接收强度确认所述红外智能笔与各个所述红外发射器之间的距离；a distance confirmation module, configured to confirm a distance between the infrared smart pen and each of the infrared emitters according to a transmit power and a receive intensity of the infrared signal;
    空间运算模块，用于根据所述与各个所述红外发射器之间的距离以及所述红外发射器之间的相对位置确认所述红外智能笔与所述触摸显示屏的距离。And a spatial operation module, configured to confirm a distance between the infrared smart pen and the touch display screen according to the distance between the infrared emitters and the relative position between the infrared emitters.
  10. 根据权利要求8所述的距离检测装置，其特征在于，所述红外智能笔，还包括：The distance detecting device according to claim 8, wherein the infrared smart pen further comprises:
    模式确认单元，用于根据所述距离确认所述红外智能笔的工作模式并反馈 到所述触摸显示屏；a mode confirmation unit, configured to confirm an operation mode of the infrared smart pen according to the distance, and feedback To the touch display screen;
    所述触摸显示屏，还包括：The touch display screen further includes:
    模式切换单元，用于根据所述工作模式进行模式切换。 And a mode switching unit, configured to perform mode switching according to the working mode.
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