CN107045408B - Touch method, smart pen, touch identification method, device and system - Google Patents
Touch method, smart pen, touch identification method, device and system Download PDFInfo
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- CN107045408B CN107045408B CN201710250844.5A CN201710250844A CN107045408B CN 107045408 B CN107045408 B CN 107045408B CN 201710250844 A CN201710250844 A CN 201710250844A CN 107045408 B CN107045408 B CN 107045408B
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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
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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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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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
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04106—Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
Abstract
The invention discloses a touch identification method, which comprises the following steps: scanning in a preset period; if the touch point is scanned from the non-scanning touch point to the touch point generated by any touch object at any time, judging whether a proximity signal sent by the touch object is received; if the approach signal is received, judging whether a contact signal sent by the touch object is received; if the approach signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation; if the contact signal is received, determining that the touch object is an intelligent pen, and executing corresponding intelligent pen operation according to the contact signal; if the touch signal is not received, the touch object is determined to be a conventional touch object, and corresponding conventional touch object operation is executed, so that the problem that misjudgment occurs in the recognition method in the prior art that writing is forbidden to be performed on other touch objects when the intelligent pen writes is solved, and the intelligent pen and other touch objects can be accurately distinguished.
Description
Technical Field
The invention relates to a touch screen technology, in particular to a touch method, an intelligent pen, a touch identification method, a touch identification device and a touch identification system.
Background
In an interactive touch screen application, there are usually smart pens and other touch objects besides the smart pens that write on the touch screen. However, compared with writing of other touch objects, the smart pen has different processing modes and different writing experiences, so that the smart pen and the other touch objects need to be distinguished. Existing methods of differentiation. The existing distinguishing method is that the intelligent pen detects the awakening start through a key or a sensor, and at the moment, the intelligent pen sends a signal to the touch screen through the wireless module. The touch screen judges whether the intelligent pen is in a close state or not by detecting the signal intensity of the wireless module of the intelligent pen. When the intelligent pen is in the approaching state and starts to write, other touch objects enter and write again at the moment, and the track of the touch objects cannot be displayed. However, the above method has a problem of false recognition, when the smart pen approaches the written device, and the signal of the wireless module reaches a set threshold, it is determined that the smart pen approaches and is ready to write, at this time, if other touch objects fall on the touch screen before the pen writes, the touch screen displays the tracks of the other touch objects, and when the smart pen falls on the written device to write, the tracks are not displayed.
Disclosure of Invention
The embodiment of the invention aims to provide a touch identification method, a touch identification device and a touch identification system, which can effectively solve the problem that misjudgment can occur when an intelligent pen and other touch objects are identified in the prior art, can realize effective identification so as to execute corresponding operation, and are simple and effective.
In order to achieve the above object, an embodiment of the present invention provides a touch recognition method, including:
scanning in a preset period;
if the touch points generated by any touch object are scanned at any time from the scanning to the non-touch point, whether a proximity signal sent by the touch object is received is judged;
if the approach signal is received, judging whether a contact signal sent by the touch object is received;
if the approach signal is not received, determining that the touch object is other touch objects except the intelligent pen, and executing corresponding conventional touch object operation; the conventional touch object is other touch objects except the intelligent pen;
if the contact signal is received, determining that the touch object is an intelligent pen, and executing corresponding intelligent pen operation according to the contact signal;
and if the contact signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation.
Compared with the prior art, the touch identification method disclosed by the invention has the advantages that in the normal mode, if the touch point of any touch object is scanned, whether a proximity signal and a contact signal are received or not is sequentially judged to identify the touch object, if the proximity signal and the contact signal are received, the touch object can be determined to be the intelligent pen, so that the corresponding intelligent pen operation is executed according to the contact signal, if the proximity signal or the contact signal is not received, the touch object can be determined to be other touch objects except the intelligent pen, and the corresponding conventional touch object operation is executed, so that the problem that the identification method for prohibiting other touch objects from writing when the intelligent pen writes in the prior art is that the error judgment occurs is solved, the intelligent pen and other touch objects can be accurately distinguished, and different operations are executed.
As an improvement of the scheme, the method further comprises the following steps: in a normal mode, if two touch points generated by two touch objects are scanned simultaneously, identifying the corresponding touch object according to the area of each touch point; and if the area of any touch point is smaller than a preset first area threshold value, determining that the corresponding touch object is the intelligent pen, otherwise, determining that the corresponding touch object is the conventional touch object. The steps are used as a recognition mode for simultaneous writing of two touch objects, and the problem that the intelligent pen and the conventional touch object cannot be distinguished due to simultaneous writing and touching can be solved.
As an improvement of the scheme, the method further comprises the following steps:
when the touch object is determined to be an intelligent pen, displaying the writing track of the intelligent pen according to the touch points generated by the intelligent pen scanned in real time, and judging whether a proximity signal sent by another touch object is received or not if the touch points generated by the other touch object are scanned at any moment in the normal writing state of the intelligent pen;
if the approach signal sent by the other touch object is judged to be received, whether a contact signal sent by the other touch object is received is judged;
and if the touch signal sent by the other touch object is judged to be received, determining that the other touch object is the smart pen, and executing corresponding smart pen operation according to the touch signal sent by the other touch object.
If the approach signal sent by the other touch object is not received, judging whether the other touch object is an interference touch object according to the relative distance and the area of the touch point; the relative distance is the relative distance between a touch point generated by another touch object and a touch point generated by the intelligent pen at the current moment, and the area of the touch point is the area of the touch point generated by the other touch object; if the relative distance is smaller than a preset distance threshold and the area of the touch point is larger than a preset second area threshold, judging that the other touch object is an interference touch object;
and if the other touch object is judged to be the interference touch object, not displaying the writing track of the other touch object. Through the steps, the phenomenon that the intelligent pen is interfered by other interferents to generate error display or misoperation when the intelligent pen is used for writing normally can be avoided, the experience of writing on paper by the pen is simulated, and the intelligent pen is more intelligent.
The embodiment of the invention also correspondingly provides a touch identification device, which comprises:
the scanning module is used for scanning in a preset period;
the proximity signal judgment module is used for judging whether a proximity signal sent by a touch object is received or not when the touch object is scanned from no touch point to any touch point generated by any touch object at any moment;
the contact signal judgment module is used for judging whether a contact signal sent by the touch object is received or not if the approach signal is received;
the first identification module is used for determining that the touch object is a conventional touch object and executing corresponding conventional touch object operation if the proximity signal is not received; the conventional touch object is other touch objects except the intelligent pen;
the second identification module is used for determining that the touch object is an intelligent pen if the contact signal is received, and executing corresponding intelligent pen operation according to the contact signal;
and the third identification module is used for determining that the touch object is a conventional touch object and executing corresponding conventional touch object operation if the contact signal is not received.
Compared with the prior art, the invention discloses a touch identification device, which scans in a preset period through a scanning module, under a normal mode, if any touch point generated by any touch object is scanned, a proximity signal judgment module judges whether a proximity signal is received, if the proximity signal is judged to be received, a proximity signal judgment module judges whether a contact signal is received, if the contact signal is judged to be received, the touch object is identified as an intelligent pen, and if the proximity signal or the contact signal is not judged to be received, the touch object is identified as other touch objects except the intelligent pen.
The embodiment of the invention also correspondingly provides a touch method, which comprises the following steps:
detecting a value of the first sensor at a preset period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen;
when the value of the first sensor is detected to be smaller than a preset first threshold value, sending a proximity signal to the touch screen, stopping detecting the value of the first sensor and starting detecting the value of the second sensor; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not;
when the value of the second sensor is detected to be larger than a preset second threshold value at any moment in a preset time period, judging that the intelligent pen and the touch screen are in mutual contact, and sending a contact signal to the touch screen;
and when the value of the second sensor is detected to be smaller than the preset second threshold value at any time in the preset time period, detecting the value of the first sensor again at the preset second period.
Compared with the prior art, the invention discloses a touch method, which comprises the steps of detecting the value of a first sensor in a preset first period, sending a proximity signal to a touch screen when the value of the first sensor is detected to be smaller than a preset first threshold value, stopping detecting the value of the first sensor and starting detecting the value of a second sensor in a second period; when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, judging that the intelligent pen and the touch screen are in mutual contact, and sending a contact signal to the touch screen; when the value of the second sensor is detected to be smaller than the preset second threshold value at any time within the preset time period, the detection of the value of the second sensor is stopped, and the value of the first sensor is detected again in the preset first period, so that the touch screen can enter a stage of preparing for writing and writing of the smart pen by sending a proximity signal and a contact signal, the recognition of the smart pen by the touch screen is completed, and the smart pen and the touch screen are matched with each other and complete corresponding operations.
As a modification of the above, the proximity signal and the contact signal are transmitted through the RF module.
As an improvement of the above scheme, the first sensor is a proximity sensor or a distance sensor, and the second sensor is a pressure sensor or a tact switch.
The embodiment of the invention also correspondingly provides a touch device, which comprises:
the first detection module is used for detecting the value of the first sensor in a preset first period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen;
the proximity signal sending module is used for sending a proximity signal to the touch screen when the value of the first sensor is detected to be smaller than a preset first threshold value, stopping detecting the value of the first sensor and starting detecting the value of the second sensor in a second period; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not;
the touch signal sending module is used for judging that the intelligent pen and the touch screen are in mutual contact when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, and sending a touch signal to the touch screen;
and the second detection module is used for stopping detecting the value of the second sensor and detecting the value of the first sensor again in a preset first period when the value of the second sensor is detected to be smaller than a preset second threshold at any time in a preset time period.
The embodiment of the invention also correspondingly provides an intelligent pen which is applied to the touch method and comprises a body, and a proximity sensor, a pressure sensor and a wireless module which are arranged in the body;
the proximity sensor is used for sensing the distance between the smart pen and the touch screen so as to generate a proximity signal;
the pressure sensor is used for sensing the contact between the smart pen and the touch screen so as to generate a contact signal;
the wireless module is used for sending the proximity signal to the touch screen when the proximity sensor generates the proximity signal; when the pressure sensor generates the contact signal, the contact signal is sent to the touch screen.
An embodiment of the present invention further provides a touch recognition system, including:
the touch screen is used for scanning in a preset first period through the infrared transmitting tube and the infrared receiving tube;
the intelligent pen is used for detecting the value of the first sensor at a preset first period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen; when the value of the first sensor is detected to be smaller than a preset first threshold value, sending a proximity signal to the touch screen, stopping detecting the value of the first sensor and starting detecting the value of a second sensor in a third period; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not; when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, judging that the intelligent pen and the touch screen are in mutual contact, and sending a contact signal to the touch screen; when the value of the second sensor is detected to be smaller than a preset second threshold value at any time within a preset time period, stopping detecting the value of the second sensor and detecting the value of the first sensor again at a preset first period;
the touch screen is also used for judging whether the approach signal is received or not when the touch point generated by the touch pen is scanned from no touch point to any touch point at any time; when the approach signal is received, judging whether the contact signal is received or not; and when the contact signal is received, determining that the intelligent pen writes on the touch screen, and executing corresponding intelligent pen operation according to the contact signal.
Compared with the prior art, the touch control identification system disclosed by the invention scans through an infrared transmitting tube and an infrared receiving tube of a touch screen in a preset first period, the intelligent pen detects the value of a first sensor in a preset second period, when the value of the first sensor is detected to be larger than a preset first threshold value, a proximity signal is sent to the touch screen, the detection of the value of the first sensor is stopped, and the detection of the value of a second sensor in a third period is started; when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, a contact signal is sent to the touch screen; when the touch screen scans a touch point generated by the intelligent pen at any moment, judging whether the approach signal is received or not; when the approach signal is judged to be received, judging whether the contact signal is received or not; and when the touch signal is judged to be received, determining that the intelligent pen writes on the touch screen, and executing corresponding operation according to the touch signal. Through the working process of the touch identification system, the identification of the intelligent pen can be realized, so that the intelligent pen and the touch screen are mutually matched and corresponding intelligent pen operations (such as amplification, writing, clicking and the like) are executed.
Drawings
Fig. 1 is a flowchart illustrating a touch recognition method in embodiment 1 of the present invention.
Fig. 2 is a flowchart illustrating a touch recognition method according to embodiment 2 of the present invention.
Fig. 3 is a flowchart illustrating a touch recognition method according to embodiment 3 of the present invention.
Fig. 4 is a schematic structural diagram of a touch recognition device in embodiment 4 of the present invention.
Fig. 5 is a flowchart illustrating a touch method according to embodiment 5 of the present invention.
Fig. 6 is a schematic structural diagram of a touch device in embodiment 6 of the invention.
Fig. 7 is a schematic structural diagram of an intelligent pen in embodiment 7 of the present invention.
Fig. 8 is a schematic structural diagram of a touch recognition system in embodiment 8 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flowchart of a touch recognition method provided in embodiment 1 of the present invention is shown, which includes the steps of:
s1, scanning in a preset period;
in this step, the scanning manner is different according to the type of the touch screen. If the touch screen is an infrared touch screen, the infrared touch screen detects and positions the touch of the user by using an infrared matrix densely distributed in the X and Y directions. The infrared touch screen is provided with a circuit board outer frame in front of the display, and the circuit board is provided with infrared transmitting tubes and infrared receiving tubes on four sides of the screen, and the infrared transmitting tubes and the infrared receiving tubes are in one-to-one correspondence to form infrared matrixes which are crossed horizontally and vertically. When a user touches the screen, two infrared rays in the transverse direction and the vertical direction passing through the position can be blocked by fingers, so that the position of a touch point on the screen can be judged. The infrared transmitting tube and the group of infrared receiving tubes are arranged in two opposite directions on the highly integrated circuit board in a crossed mode to form an invisible infrared grating. An intelligent control system embedded in the control circuit continuously pulses the diodes to form an infrared deflection beam grid. When a touch object such as a finger or the like enters the grating, the light beam is blocked. The intelligent control system detects the light loss change and transmits a signal to the control system to confirm the coordinate values of the X axis and the Y axis. When the touch screen is a capacitive touch screen, there is a projected capacitive screen which can be divided into two types of self-capacitive screen and mutual capacitive screen, and when ITO (a transparent conductive material) is used to make transverse and longitudinal electrode arrays on the glass surface, these transverse and longitudinal electrodes respectively form capacitances with ground, which is known as self-capacitance, i.e. capacitance of electrode to ground. When a finger touches the capacitive screen, the capacitance of the finger is superposed on the capacitance of the screen body, so that the capacitance of the screen body is increased. During touch detection, the self-capacitance screen sequentially and respectively detects the transverse electrode array and the longitudinal electrode array, respectively determines a transverse coordinate and a longitudinal coordinate according to the capacitance change before and after touch, and then combines the transverse coordinate and the longitudinal coordinate into a planar touch coordinate. The scanning mode of the self-capacitance is equivalent to projecting touch points on the touch screen to the X-axis direction and the Y-axis direction respectively, then calculating coordinates in the X-axis direction and the Y-axis direction respectively, and finally combining the coordinates into the coordinates of the touch points.
S2, if the touch point generated by any touch object is scanned from the scanning of no touch point at any moment, judging whether a proximity signal sent by the touch object is received;
it can be understood that a touch object generates a touch point.
S3, if the approach signal is received, judging whether a contact signal sent by the touch object is received;
s4, if the approach signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation; the conventional touch object is other touch objects except the intelligent pen;
s5, if the contact signal is received, determining that the touch object is an intelligent pen, and executing corresponding intelligent pen operation according to the contact signal;
and S6, if the contact signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation.
And other touch objects outside the intelligent pen do not have pressure sensing and wireless transmission functions.
During specific implementation, if the touch point is scanned from no touch point to any touch point generated by any touch object at any time, whether a proximity signal and a contact signal sent by the touch object are received or not is sequentially judged, if the proximity signal and the contact signal are judged to be received, the touch object can be determined to be an intelligent pen, and therefore corresponding intelligent pen operation is executed according to the contact signal; when the approach signal or the contact signal is judged not to be received, the touch object can be determined to be other touch objects except the intelligent pen, such as fingers, and corresponding conventional touch object operation is executed, and the touch object can be accurately identified by the identification method, so that the condition of misjudgment is avoided; and other touch objects can not write when the intelligent pen writes without limitation, and the intelligent pen and other touch objects can be operated simultaneously.
Referring to fig. 2, which is a schematic flow chart of a touch recognition method provided in embodiment 2 of the present invention, embodiment 2 further includes, on the basis of embodiment 1, the steps of:
s7, in a normal mode, if two touch points generated by two touch objects are scanned simultaneously, identifying the corresponding touch object according to the area of each touch point; and if the area of any touch point is smaller than a preset first area threshold value, determining that the corresponding touch object is the intelligent pen, otherwise, determining that the corresponding touch object is the conventional touch object.
If two touch points generated by the two touch objects are scanned at any moment, the attributes of the two touch objects cannot be identified respectively by judging whether the approach signal and the contact signal are received. Because the diameters of the smart pen and other touch objects are different greatly (such as 2mm and 8mm), the corresponding touch object can be identified by calculating the area size of each touch point. It can be understood that when the area of any one of the touch points is smaller than the preset first area threshold, the corresponding touch object is determined to be the smart pen, otherwise, the corresponding touch object is determined to be another touch object except the smart pen. The method is used as a recognition mode for writing two touch objects simultaneously, and can solve the problem that the intelligent pen and other touch objects cannot be distinguished due to simultaneous writing and touching. Through the method, the attribute of each touch object can be respectively identified, so that corresponding operation is executed according to the attribute of each touch object.
Referring to fig. 3, which is a schematic flow chart of a touch recognition method provided in embodiment 3 of the present invention, embodiment 3 further includes, on the basis of embodiment 1, the steps of:
s8, when the touch object is determined to be the intelligent pen, displaying the writing track of the intelligent pen according to the touch point generated by the intelligent pen scanned in real time, and if the touch point generated by another touch object is scanned at any moment in the normal writing state of the intelligent pen, judging whether a proximity signal sent by the other touch object is received;
s9, if the approach signal sent by the other touch object is judged to be received, whether the contact signal sent by the other touch object is received is judged;
s10, if the touch signal sent by the other touch object is judged to be received, determining that the other touch object is an intelligent pen, and executing corresponding intelligent pen operation according to the touch signal;
s11, if the approach signal sent by the other touch object is not received, judging whether the other touch object is an interference touch object according to the relative distance and the touch point area; the relative distance is the relative distance between a touch point generated by another touch object and a touch point generated by the intelligent pen at the current moment, and the area of the touch point is the area of the touch point generated by the other touch object; if the relative distance is smaller than a preset distance threshold and the area of the touch point is larger than a preset second area threshold, judging that the other touch object is an interference touch object;
and S12, if the other touch object is judged to be the interference touch object, not displaying the writing track of the other touch object.
When the touch object is determined to be the intelligent pen, displaying the writing track of the intelligent pen according to the touch points generated by the intelligent pen scanned in real time; in the normal writing process of the intelligent pen, if a touch point of another touch object is scanned, sequentially judging whether a proximity signal and a contact signal sent by the other touch object are received again, so as to judge whether the other touch object is the intelligent pen; if the approach signal sent by the other touch object is not received, judging whether the other touch object is an interference touch object according to the relative distance and the area of the touch point; it can be understood that if the relative distance is smaller than a preset distance threshold and the area of the touch point is larger than a preset second area threshold, the other touch object is determined to be an interfering touch object; and if the other touch object is judged to be the interference touch object, not displaying the writing track of the other touch object. Through the process, the phenomenon of error display caused by interference of the palm, the sleeves and the like can be prevented when the intelligent pen is used for writing normally, the experience feeling of the pen when the pen is used for writing on paper can be simulated, and the pen using habit of people is met. In addition, if the other touch object is identified not to be the interference touch object, corresponding response operation can be executed according to the corresponding attribute (other touch objects such as a smart pen or a finger), so that the scheme can realize simultaneous writing of a plurality of touch objects, does not need to limit that the other touch object cannot write when one touch object is writing, is more flexible, and can better simulate the experience of writing on paper by a pen.
Referring to fig. 4, a schematic structural diagram of a touch recognition device provided in embodiment 4 of the present invention includes:
the scanning module 101 is used for starting the infrared transmitting tube and the infrared receiving tube on the touch screen to scan in a preset period;
the proximity signal judgment module 102 is configured to judge whether a proximity signal sent by a touch object is received or not when a touch point generated by any touch object is scanned from no touch point to any touch point at any time;
a contact signal determination module 103, configured to determine whether a contact signal sent by the touch object is received if the proximity signal is received;
the first identification module 104 is configured to determine that the touch object is a conventional touch object and execute a corresponding conventional touch object operation if the proximity signal is not received; the conventional touch object is other touch objects except the intelligent pen;
the second identification module 105 is configured to determine that the touch object is an intelligent pen if the contact signal is received, and execute a corresponding intelligent pen operation according to the contact signal;
the third identifying module 106 is configured to determine that the touch object is a conventional touch object and execute a corresponding conventional touch object operation if the contact signal is not received.
The specific working process of the touch recognition device of this embodiment may refer to the description of the touch recognition method in embodiment 1, and is not described herein again.
Referring to fig. 5, a flowchart of a touch method provided in embodiment 5 of the present invention is shown, including the steps of:
s21, detecting the value of the first sensor in a preset first period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen;
s22, when the value of the first sensor is detected to be smaller than a preset first threshold value, sending a proximity signal to the touch screen, stopping detecting the value of the first sensor and starting detecting the value of the second sensor in a second period; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not;
s23, when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, judging that the intelligent pen and the touch screen are in mutual contact, and sending a contact signal to the touch screen;
and S24, when the value of the second sensor is detected to be smaller than the preset second threshold value at any time in the preset time period, stopping detecting the value of the second sensor and detecting the value of the first sensor again in the preset first period.
In specific implementation, a first sensor senses the distance between the intelligent pen and the touch screen, a second sensor senses whether the intelligent pen is in contact with the touch screen or not, the value of the first sensor is detected in a preset first period, when the value of the first sensor is detected to be smaller than a preset first threshold value, a proximity signal is sent to the touch screen, the detection of the value of the first sensor is stopped, and the detection of the value of the second sensor in a second period is started; when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, judging that the intelligent pen and the touch screen are in mutual contact, and sending a contact signal to the touch screen; and when the value of the second sensor is detected to be smaller than a preset second threshold value at any time in a preset time period, stopping detecting the value of the second sensor and detecting the value of the first sensor again in a preset first period. As can be seen from the above description of the process, the proximity signal is a primary signal sent to the touch screen when the distance between the smart pen and the touch screen is smaller than a preset distance threshold; the touch signal is a signal which is continuously sent to the touch screen for a plurality of times when the smart pen is in contact with the touch screen, so that the touch screen can enter a preparation state for writing by the smart pen according to a proximity signal, and track thicknesses with different thicknesses can be displayed according to the continuous touch signal. And when an intelligent pen writes, the accessible is judged and is received the proximity signal that another intelligent pen sent and discern, and the in-process that an intelligent pen is writing continuously sends the proximity signal can not appear, and the condition of another intelligent pen can't be discerned, can realize writing the discernment of writing to a plurality of touch-control thing, and is more intelligent.
Preferably, the proximity signal and the contact signal are transmitted through an RF module. Radio Frequency (RF) is an abbreviation for radio frequency, which refers to an electromagnetic frequency that can radiate into space, ranging from 300KHz to 300 GHz. In the theory of electronics, current flows through a conductor, and a magnetic field is formed around the conductor; an alternating current passes through a conductor, around which an alternating electromagnetic field, called an electromagnetic wave, is formed. When the frequency of the electromagnetic waves is lower than 100kHz, the electromagnetic waves can be absorbed by the earth surface and cannot form effective transmission, but when the frequency of the electromagnetic waves is higher than 100kHz, the electromagnetic waves can be transmitted in the air and reflected by an ionosphere at the outer edge of the atmosphere to form long-distance transmission capability, and the high-frequency electromagnetic waves with the long-distance transmission capability are called radio frequency.
Preferably, the first sensor is a proximity sensor and the second sensor is a pressure sensor. A proximity sensor, which is a sensor that senses a measured quantity without contact and converts it into an electrical signal. The proximity sensor can be mainly divided into a capacitive proximity sensor and an inductive sensor, the capacitive proximity sensor mainly comprises a high-frequency oscillator, an amplifier and the like, wherein a detection surface of the sensor and the ground form a large capacitor, no object exists nearby at the beginning, a loop is in an oscillation state, the capacity of the capacitor changes along with the gradual approach of the object, the oscillation of the capacitor stops, and the change of the oscillation state can be converted into an electric signal and is converted into a binary signal after being amplified by the amplifier; the inductive proximity sensor mainly comprises a high-frequency oscillator, an amplifier, a detection circuit, a trigger circuit, an output circuit and the like. At the beginning, the high-frequency oscillator generates an electromagnetic field at the detection surface of the sensor, no metal object is nearby, the loop is in an oscillation state, along with the gradual approach of the metal object, the eddy current generated by the metal gradually absorbs the energy of the high-frequency oscillator until the oscillation stops, the change of the two oscillation states of the high-frequency oscillator can be converted into an electric signal, and the electric signal is converted into a binary signal after detection and amplification. It should be noted that when the first sensor is a proximity sensor, the value of the first sensor indicates the sensed distance between the touch screen and the smart pen.
In another preferred embodiment, the first sensor is a distance sensor, and the distance sensor includes various types, such as an infrared range finder, a laser range finder, an ultrasonic range finder, and the like; the second sensor is a touch switch, the touch switch is switched on when the condition of the operating force is met and the pressure is applied to the switch operating direction, the switch is switched off when the pressure is removed, and the internal structure of the touch switch is switched on and off by the stress change of the metal elastic sheet. Although the touch switch can sense whether the touch screen is in contact with the smart pen, quantitative pressure-sensitive data cannot be obtained, so that the smart pen with the touch switch can only display a track with a preset thickness when writing.
Correspondingly, the present invention further provides a touch device, as shown in fig. 6, including:
a first detection module 201, configured to detect a value of a first sensor at a preset first period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen;
a proximity signal sending module 202, configured to send a proximity signal to the touch screen when it is detected that the value of the first sensor is smaller than a preset first threshold, stop detecting the value of the first sensor, and start detecting the value of the second sensor in a second period; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not;
the contact signal sending module 203 is configured to determine that the smart pen and the touch screen are in contact with each other and send a contact signal to the touch screen when it is detected that the value of the second sensor is greater than a preset second threshold at any time;
the second detecting module 204 is configured to, when it is detected that the value of the second sensor is smaller than a preset second threshold at any time within a preset time period, stop detecting the value of the second sensor and detect the value of the first sensor again in a preset first cycle.
The working process of the touch device according to the embodiment of the present invention may refer to the specific description of the touch method in the above embodiment, and is not repeated herein.
According to the description of the touch method, the embodiment of the present invention further provides a smart pen 300 correspondingly, as shown in fig. 7, which is applied to the touch method, and includes a body, and a proximity sensor 301, a pressure sensor 302 and a wireless module 303 which are disposed in the body;
wherein the proximity sensor 301 is used for sensing the distance between the smart pen and the touch screen so as to generate a proximity signal;
the pressure sensor 302 is used for sensing the contact between the smart pen and the touch screen so as to generate a contact signal;
the wireless module 303 is configured to send the proximity signal to the touch screen when the proximity sensor generates the proximity signal; when the pressure sensor generates the contact signal, the contact signal is sent to the touch screen.
The smart pen has the functions of sensing the distance between the smart pen and the touch screen and determining whether the smart pen is in contact with the touch screen, and can send the proximity signal and the contact signal to the touch screen through the wireless module 303, so that the smart pen is matched with the touch screen to complete the identification process and enters a normal writing state.
Referring to fig. 8, a schematic structural diagram of a touch recognition system provided in embodiment 8 of the present invention includes:
a touch screen 401 for scanning with a preset first period through an infrared transmitting tube and an infrared receiving tube;
a smart pen 402 for detecting a value of a first sensor at a preset first period; the first sensor is used for sensing the distance between the smart pen 402 and the touch screen 401; when the value of the first sensor is detected to be smaller than a preset first threshold value, sending a proximity signal to the touch screen 401, stopping detecting the value of the first sensor and starting detecting the value of the second sensor in a second period; the second sensor is used for sensing whether the smart pen 402 and the touch screen 401 are in contact; when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, judging that the smart pen 402 and the touch screen 401 are in mutual contact, and sending a contact signal to the touch screen 401; when the value of the second sensor is detected to be smaller than a preset second threshold value at any time within a preset time period, stopping detecting the value of the second sensor and detecting the value of the first sensor again at a preset first period;
the touch screen 401 is further configured to determine whether the proximity signal is received when a touch point generated by the smart pen 402 is scanned at any time from a non-touch point; when the approach signal is received, judging whether the contact signal is received or not; when the contact signal is received, it is determined that the smart pen 402 writes on the touch screen 401, and a corresponding smart pen operation is performed according to the contact signal.
The touch screen 401 in the touch recognition system 400 scans through an infrared transmitting tube and an infrared receiving tube in a preset first period, the smart pen 402 detects a value of a first sensor in a preset second period, and when the value of the first sensor is detected to be smaller than a preset first threshold value, a proximity signal is sent to the touch screen 401, the detection of the value of the first sensor is stopped, and the detection of a value of a second sensor in a third period is started; when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, a contact signal is sent to the touch screen 401; when the touch screen scans a touch point generated by the smart pen 402 at any moment, whether the approach signal is received is judged; when the approach signal is judged to be received, judging whether the contact signal is received or not; when the contact signal is judged to be received, it is determined that the smart pen 402 writes on the touch screen 401, and corresponding smart pen operation is executed according to the contact signal. Through the above-mentioned working process of the touch recognition system 400, the touch screen 401 can recognize the smart pen 402, so that the smart pen 402 and the touch screen 401 cooperate with each other and perform corresponding operations (such as amplification, writing, clicking, etc.).
To sum up, the embodiment of the invention discloses a touch identification method, a touch identification device and a touch identification system, wherein if a touch point generated by any touch object is scanned, whether a proximity signal and a contact signal sent by the touch object are received or not is sequentially judged, and if the proximity signal and the contact signal are judged to be received, the touch object can be determined to be an intelligent pen, so that corresponding intelligent pen operation is executed according to the contact signal; when the approach signal or the contact signal is judged not to be received, the touch object can be determined to be other touch objects except the intelligent pen, such as fingers, and corresponding conventional touch object operation is executed, and the touch object can be accurately identified by the identification method, so that the condition of misjudgment is avoided; and other touch objects can not write when the intelligent pen writes without limitation, and the intelligent pen and other touch objects can be operated simultaneously.
The embodiment of the invention also discloses a touch method and an intelligent pen, wherein the value of a first sensor is detected in a preset first period, when the value of the first sensor is detected to be larger than a preset first threshold value, a proximity signal is sent to the touch screen, the detection of the value of the first sensor is stopped, and the detection of the value of a second sensor in a second period is started; when the value of the second sensor is detected to be smaller than a preset second threshold value at any moment, judging that the intelligent pen and the touch screen are in mutual contact, and sending a contact signal to the touch screen; when the value of the second sensor is detected to be smaller than a preset second threshold value at any time within a preset time period, the detection of the value of the second sensor is stopped, the value of the first sensor is detected again according to a preset first period, the touch screen is informed of the approach signal to be ready to enter a preparation stage of writing by the smart pen, the touch screen is informed of the contact signal to be written by the smart pen, the approach signal and the contact signal are jointly used as signals for identifying the smart pen, and the smart pen and the touch screen are mutually matched to finish pen and paper simulation.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A touch identification method is characterized by comprising the following steps:
scanning in a preset period;
if the touch point is scanned from the non-scanning touch point to the touch point generated by any touch object at any time, judging whether a proximity signal sent by the touch object is received; if the approach signal is received, judging whether a contact signal sent by the touch object is received;
if the approach signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation; the conventional touch object is other touch objects except the intelligent pen; if the contact signal is received, determining that the touch object is an intelligent pen, and executing corresponding intelligent pen operation according to the contact signal;
and if the contact signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation.
2. The touch recognition method of claim 1, further comprising:
in a normal mode, if two touch points generated by two touch objects are scanned simultaneously, identifying the corresponding touch object according to the area of each touch point; and if the area of any touch point is smaller than a preset first area threshold value, determining that the corresponding touch object is the intelligent pen, otherwise, determining that the corresponding touch object is the conventional touch object.
3. The touch recognition method of claim 1, further comprising:
when the touch object is determined to be an intelligent pen, displaying the writing track of the intelligent pen according to the touch points generated by the intelligent pen scanned in real time, and judging whether a proximity signal sent by another touch object is received or not if the touch points generated by the other touch object are scanned at any moment in the normal writing state of the intelligent pen;
if the approach signal sent by the other touch object is judged to be received, whether a contact signal sent by the other touch object is received is judged;
if the touch signal sent by the other touch object is judged to be received, the other touch object is determined to be an intelligent pen, and corresponding intelligent pen operation is executed according to the touch signal sent by the other touch object;
if the approach signal sent by the other touch object is not received, judging whether the other touch object is an interference touch object according to the relative distance and the area of the touch point; the relative distance is the relative distance between a touch point generated by another touch object and a touch point generated by the intelligent pen at the current moment, and the area of the touch point is the area of the touch point generated by the other touch object; if the relative distance is smaller than a preset distance threshold and the area of the touch point is larger than a preset second area threshold, judging that the other touch object is an interference touch object;
and if the other touch object is judged to be the interference touch object, not displaying the writing track of the other touch object.
4. A touch recognition device, comprising:
the scanning module is used for scanning in a preset period;
the proximity signal judgment module is used for judging whether a proximity signal sent by a touch object is received or not when the touch object is scanned from no touch point to any touch point generated by any touch object at any moment;
the contact signal judgment module is used for judging whether a contact signal sent by the touch object is received or not if the approach signal is received;
the first identification module is used for determining that the touch object is a conventional touch object and executing corresponding conventional touch object operation if the proximity signal is not received; the conventional touch object is other touch objects except the intelligent pen;
the second identification module is used for determining that the touch object is an intelligent pen if the contact signal is received, and executing corresponding intelligent pen operation according to the contact signal;
and the third identification module is used for determining that the touch object is a conventional touch object and executing corresponding conventional touch object operation if the contact signal is not received.
5. A touch method is characterized by comprising the following steps:
detecting a value of a first sensor at a preset first period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen;
when the fact that the value of the first sensor is smaller than a preset first threshold value is detected, the smart pen sends a proximity signal to the touch screen, stops detecting the value of the first sensor and starts detecting the value of the second sensor in a second period; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not;
when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, the intelligent pen and the touch screen are judged to be in mutual contact, and the intelligent pen sends a contact signal to the touch screen, so that the touch screen judges whether a proximity signal sent by a touch object is received or not; if the approach signal is received, judging whether a contact signal sent by the touch object is received; if the approach signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation; if the contact signal is received, determining that the touch object is an intelligent pen, and executing corresponding intelligent pen operation according to the contact signal; if the contact signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation;
and when the value of the second sensor is detected to be smaller than a preset second threshold value at any time in a preset time period, stopping detecting the value of the second sensor and detecting the value of the first sensor again in a preset first period.
6. The touch method of claim 5, wherein the proximity signal and the contact signal are transmitted through an RF module.
7. The touch method of claim 6, wherein the first sensor is a proximity sensor or a distance sensor, and the second sensor is a pressure sensor or a tact switch.
8. A touch device, comprising:
the first detection module is used for detecting the value of the first sensor in a preset first period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen;
the proximity signal sending module is used for sending a proximity signal to the touch screen when the value of the first sensor is detected to be smaller than a preset first threshold value, stopping detecting the value of the first sensor and starting detecting the value of the second sensor in a second period; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not;
the touch signal sending module is used for judging that the intelligent pen and the touch screen are in mutual contact when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, and the intelligent pen sends a touch signal to the touch screen so that the touch screen judges whether a proximity signal sent by a touch object is received or not; if the approach signal is received, judging whether a contact signal sent by the touch object is received; if the approach signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation; if the contact signal is received, determining that the touch object is an intelligent pen, and executing corresponding intelligent pen operation according to the contact signal; if the contact signal is not received, determining that the touch object is a conventional touch object, and executing corresponding conventional touch object operation;
and the second detection module is used for stopping detecting the value of the second sensor and detecting the value of the first sensor again in a preset first period when the value of the second sensor is detected to be smaller than a preset second threshold at any time in a preset time period.
9. A smart pen applied to the touch method of claim 7, comprising a body, and a proximity sensor, a pressure sensor and a wireless module disposed in the body;
the proximity sensor is used for sensing the distance between the smart pen and the touch screen so as to generate a proximity signal;
the pressure sensor is used for sensing the contact between the smart pen and the touch screen so as to generate a contact signal;
the wireless module is used for sending the proximity signal to the touch screen when the proximity sensor generates the proximity signal; when the pressure sensor generates the contact signal, the contact signal is sent to the touch screen.
10. A touch recognition system, comprising:
the touch screen is used for scanning in a preset first period through the infrared transmitting tube and the infrared receiving tube;
the intelligent pen is used for detecting the value of the first sensor at a preset first period; the first sensor is used for sensing the distance between the intelligent pen and the touch screen; when the value of the first sensor is detected to be smaller than a preset first threshold value, sending a proximity signal to the touch screen, stopping detecting the value of the first sensor and starting detecting the value of a second sensor in a third period; the second sensor is used for sensing whether the smart pen is in contact with the touch screen or not; when the value of the second sensor is detected to be larger than a preset second threshold value at any moment, judging that the intelligent pen and the touch screen are in mutual contact, and sending a contact signal to the touch screen; when the value of the second sensor is detected to be smaller than a preset second threshold value at any time within a preset time period, stopping detecting the value of the second sensor and detecting the value of the first sensor again at a preset first period;
the touch screen is also used for judging whether the approach signal is received or not when the touch point generated by the intelligent pen is scanned from the scanning no-touch point at any moment; when the approach signal is received, judging whether the contact signal is received or not; and when the contact signal is received, determining that the intelligent pen writes on the touch screen, and executing corresponding intelligent pen operation according to the contact signal.
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| CN107515696B (en) * | 2017-08-31 | 2020-11-13 | 北京集创北方科技股份有限公司 | Touch detection method and touch module |
| CN108762579B (en) * | 2018-06-15 | 2021-09-28 | 广州华欣电子科技有限公司 | Method and system for generating handwriting of multiple pressure-sensitive pens and related components |
| CN108776548A (en) * | 2018-06-15 | 2018-11-09 | 广州华欣电子科技有限公司 | Written handwriting generation method, system and associated component based on infrared touch screen |
| CN108415661A (en) * | 2018-06-15 | 2018-08-17 | 广州华欣电子科技有限公司 | Written handwriting generation method, system and associated component based on infrared touch screen |
| CN109298809A (en) * | 2018-07-24 | 2019-02-01 | 深圳市创易联合科技有限公司 | A kind of touch action recognition methods, device and terminal device |
| EP3640775B1 (en) * | 2018-09-05 | 2022-02-23 | Shenzhen Goodix Technology Co., Ltd. | Touch sensing method, touch chip, electronic device, and touch system |
| CN109753179B (en) * | 2018-12-17 | 2022-10-25 | 掌阅科技股份有限公司 | User operation instruction processing method and handwriting reading equipment |
| CN110286799B (en) * | 2019-06-27 | 2023-10-03 | 深圳市康冠商用科技有限公司 | Infrared information acquisition method and related device |
| CN114077327A (en) * | 2020-08-17 | 2022-02-22 | 北京钛方科技有限责任公司 | Position detection method and system |
| CN113791725A (en) * | 2021-08-04 | 2021-12-14 | 惠州Tcl云创科技有限公司 | Touch pen operation identification method, intelligent terminal and computer readable storage medium |
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| US9329703B2 (en) * | 2011-06-22 | 2016-05-03 | Apple Inc. | Intelligent stylus |
| US20140104191A1 (en) * | 2012-10-17 | 2014-04-17 | Perceptive Pixel, Inc. | Input Classification for Multi-Touch Systems |
| CN104252254A (en) * | 2013-06-25 | 2014-12-31 | 宏碁股份有限公司 | Touch input source selecting method and electronic device |
| US9910542B2 (en) * | 2014-12-30 | 2018-03-06 | Adonit Co., Ltd. | Touch location correction for touchscreen devices |
| CN105204669A (en) * | 2015-11-02 | 2015-12-30 | 谢亮 | Capacitive sensing type wireless multifunctional mouse pen |
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