CN116360633A - Touch method for opening and closing electronic whiteboard - Google Patents
Touch method for opening and closing electronic whiteboard Download PDFInfo
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- CN116360633A CN116360633A CN202310348620.3A CN202310348620A CN116360633A CN 116360633 A CN116360633 A CN 116360633A CN 202310348620 A CN202310348620 A CN 202310348620A CN 116360633 A CN116360633 A CN 116360633A
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- touch
- phase
- coordinates
- electronic whiteboard
- switch
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention relates to the technical field of electronic whiteboards, and discloses a touch control method for opening and closing an electronic whiteboard, which is characterized in that a button for creating a new touch control switch area in the electronic whiteboard is clicked, then coordinates required for creating the touch control switch area are stored in a drive, then the touch control switch area is sequentially selected and arranged and the touch control switch area is added, the arranged coordinates of the touch control switch are modified and adjusted, a PCB is arranged in the electronic whiteboard, and the electronic whiteboard is formed by two groups of wires which are vertically crossed in a transverse (Y-axis) and vertical (X-axis) mode. According to the touch control method for opening and closing the electronic whiteboard, a user can select the touch control method for closing the whiteboard through touch control setting, so that the user can more conveniently use the whiteboard, and when the user uses the whiteboard, if some operations such as writing and the like are required, the operations can be realized through closing the touch control method, and the touch control method can be conveniently closed in the use process, so that the influence on a screen is reduced.
Description
Technical Field
The invention relates to the technical field of electronic whiteboards, in particular to a touch control method for opening and closing an electronic whiteboard.
Background
The electronic whiteboard is a newer product, integrates the high-tech products developed by a plurality of high-tech means such as tip electronic technology, software technology and the like, can realize paperless office work and teaching by combining a computer and a projector, can be directly written by a pen like a common whiteboard or a teaching blackboard, and then is input into the computer, and has the advantages of the electronic whiteboard relative to the projector and the common whiteboard.
Along with the development of science and technology, electronic whiteboards are gradually applied to a plurality of fields, but electronic whiteboards often have certain inconvenience in the use process, and when a user generally has the situation of false touch in the operation process, if the electronic whiteboards are suddenly closed or opened in the use process, the situation of data interruption or display stopping can be caused, so that the electronic whiteboards are inconvenient for operators to operate and use, and different touch control methods may be needed in different application scenes.
Disclosure of Invention
In order to achieve the above convenient effect, the present invention provides the following technical solutions: a touch control method for opening and closing an electronic whiteboard comprises the following steps:
s1, acquiring coordinates of a touch switch
By clicking a button of a 'create new touch switch area' in the electronic whiteboard, further saving the coordinates required by creating the touch switch area into a drive, and then sequentially selecting a 'set touch switch area' and an 'add touch switch area', modifying and adjusting the set touch switch coordinates;
s2, storing and modifying touch control coordinates
The electronic whiteboard is internally provided with a PCB, and the PCB is formed by two groups of wires which are vertically crossed in a transverse (Y-axis) and vertical (X-axis) manner, and then when a user is in the process of operation, the following conditions can occur: 1. when the coil on the X, Y shaft is detected by touching, the switch CD4051 at the corresponding position in the circuit board outputs a high-low level, the coil on the X, Y shaft is controlled to be connected or disconnected, and when the coil on the X, Y shaft is detected by touching, no signal is output by the touch detection device, at the moment, the output end of the analog electronic switch CD4051 is directly grounded, and the touch detection device is not touched;
s3, touch screen power supply driving circuit
When the touch panel is detected to be not touched by touch, the touch screen power supply driving circuit is not started; when the touch panel is touched, the touch screen power supply driving circuit is started. When the touch detection device detects that a key of the touch panel is not pressed in the test process, the touch screen power supply driving circuit stops working, and the analog electronic switch CD4051 is converted into a high level through a low level so as to realize the lighting of the screen;
s4, coordinate recognition of touch switch
When a user touches the electronic whiteboard, the LCD display screen control chip receives a control signal sent by the touch screen controller and sends a corresponding control instruction to a corresponding channel according to the control signal, the detection device senses the touch signal, for example, when the touch point is P point, the coil senses the touch electromagnetic signal, and then the signal of the detection fracture is changed from zero to a non-zero value, the coil Y axis is scanned in the same way, the Y axis is scanned again, two voltage values Vm and vm+1 can be detected on Ym and ym+1, the two voltage values correspond to two current values respectively, vm, vn, vm+1 and vm+2, the detected 4 voltage values are respectively connected to four positions, the three-phase current value can be calculated, the touch coordinates can be calculated by using the detected 4 voltage values Vn, vn+1 and vm+1, the touch coordinates are detected by a split-phase detection method and a symmetrical detection method, and when the touch coordinates are set, the touch coordinates are set to be turned on and off, and the touch coordinates are set to be turned off.
Preferably, in the step S2, each group of intersecting wires is insulated; one end of the wire is grounded, the other end of the wire is connected with the input end of the analog electronic switch CD4051 of the touch screen controller through the FPC, and the number of coils in the X, Y axis direction is determined according to the size of the display.
Preferably, in the step S2, the X-axis direction of the touch detection device is composed of 35 coils, and the Y-axis is composed of 30 coils.
Preferably, in the step S3, when the touch screen power driving circuit stops operating, the analog electronic switch CD4051 outputs a low level.
Preferably, in the step S4, the touch signal is detected by time-sharing scanning, and when the touch sensing device performs a touch operation on a certain row on the display screen, a dot-like image appears on the display screen. If the image point is compared with the keys at the corresponding positions, when the positions of the dot patterns at the positions corresponding to the two keys are different, the display content at the corresponding positions on the screen is changed.
Preferably, in the step S4, the coordinate positions of the coils are Xn, xn+1 and Ym, ym+1.
Preferably, in the step S4, when the three-phase currents are unbalanced, the voltage values of the phases may be calculated by scanning a three-phase voltmeter; when the voltage of a certain phase deviates too much from the normal range, a three-phase current imbalance occurs.
Preferably, in the step S4, the phase separation detection method specifically includes that each phase has only one detection point (e.g., phase a), and the symmetry detection method specifically includes: in practical applications, it is very difficult to minimize the deviation between a certain phase and a normal value, or to maximize the deviation between a certain phase and a normal value.
Compared with the prior art, the invention provides a touch control method for opening and closing an electronic whiteboard, which has the following beneficial effects:
1. according to the touch control method for opening and closing the electronic whiteboard, a user can select the touch control method for closing the whiteboard through touch control setting, so that the user can more conveniently use the whiteboard, and when the user uses the whiteboard, if some operations such as drawing, writing and the like are required, the operations can be realized through closing the touch control method, and the touch control method can be conveniently closed in the use process, so that the influence on a screen is reduced.
2. According to the touch control method for opening and closing the electronic whiteboard, a user can set according to the actual situation of the user, the user can switch the function of the electronic whiteboard by clicking a function button, for example, the function of the whiteboard is switched by clicking a whiteboard button, the function of the whiteboard is switched by clicking an area, so that the user can operate more conveniently, when the user uses the whiteboard, if some special demands need to operate, the user can realize the operation by clicking the function button, and when the user uses the whiteboard, some operations can be completed more conveniently.
Drawings
FIG. 1 is a schematic diagram of the flow structure of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides a technical solution: a touch control method for opening and closing an electronic whiteboard comprises the following steps:
s1, acquiring coordinates of a touch switch
By clicking a button of a 'create new touch switch area' in the electronic whiteboard, further saving the coordinates required by creating the touch switch area into a drive, and then sequentially selecting a 'set touch switch area' and an 'add touch switch area', modifying and adjusting the set touch switch coordinates;
s2, storing and modifying touch control coordinates
The electronic whiteboard is internally provided with a PCB, and the PCB is formed by two groups of wires which are vertically crossed in a transverse (Y-axis) and vertical (X-axis) manner, and then when a user is in the process of operation, the following conditions can occur: 1. when the coil on the X, Y shaft is detected by touching, the switch CD4051 at the corresponding position in the circuit board outputs a high-low level, the coil on the X, Y shaft is controlled to be connected or disconnected, and when the coil on the X, Y shaft is detected by touching, no signal is output by the touch detection device, at the moment, the output end of the analog electronic switch CD4051 is directly grounded, and the touch detection device is not touched;
s3, touch screen power supply driving circuit
When the touch panel is detected to be not touched by touch, the touch screen power supply driving circuit is not started; when the touch panel is touched, the touch screen power supply driving circuit is started. When the touch detection device detects that a key of the touch panel is not pressed in the test process, the touch screen power supply driving circuit stops working, and the analog electronic switch CD4051 is converted into a high level through a low level so as to realize the lighting of the screen;
s4, coordinate recognition of touch switch
When a user touches the electronic whiteboard, the LCD display screen control chip receives a control signal sent by the touch screen controller and sends a corresponding control instruction to a corresponding channel according to the control signal, the detection device senses the touch signal, for example, when the touch point is P point, the coil senses the touch electromagnetic signal, and then the signal of the detection fracture is changed from zero to a non-zero value, the coil Y axis is scanned in the same way, the Y axis is scanned again, two voltage values Vm and vm+1 can be detected on Ym and ym+1, the two voltage values correspond to two current values respectively, vm, vn, vm+1 and vm+2, the detected 4 voltage values are respectively connected to four positions, the three-phase current value can be calculated, the touch coordinates can be calculated by using the detected 4 voltage values Vn, vn+1 and vm+1, the touch coordinates are detected by a split-phase detection method and a symmetrical detection method, and when the touch coordinates are set, the touch coordinates are set to be turned on and off, and the touch coordinates are set to be turned off.
Further, in step S2, each group of intersecting wires is insulated; one end of the wire is grounded, the other end of the wire is connected with the input end of the analog electronic switch CD4051 of the touch screen controller through the FPC, and the number of coils in the X, Y axis direction is determined according to the size of the display.
Further, in step S2, the X-axis direction of the touch detection device is composed of 35 coils, and the Y-axis is composed of 30 coils.
Further, in step S3, when the touch screen power driving circuit will stop working, the analog electronic switch CD4051 will output a low level.
Further, in step S4, the touch signal is detected by time-sharing scanning, and when the touch sensing device performs a touch operation on a certain row on the display screen, a dot-like image appears on the display screen. If the image point is compared with the keys at the corresponding positions, when the positions of the dot patterns at the positions corresponding to the two keys are different, the display content at the corresponding positions on the screen is changed.
Further, in step S4, the coordinate positions of the coils are Xn, xn+1, ym, ym+1.
Further, in step S4, when the three-phase currents are unbalanced, the voltage values of the phases may be calculated by scanning the three-phase voltmeter; when the voltage of a certain phase deviates too much from the normal range, a three-phase current imbalance occurs.
In step S4, the phase-splitting detection method is specifically that each phase has only one detection point (such as phase A), and the symmetry detection method is specifically that: in practical applications, it is very difficult to minimize the deviation between a certain phase and a normal value, or to maximize the deviation between a certain phase and a normal value.
According to the touch control method for opening and closing the electronic whiteboard, a user can select the touch control method for closing the whiteboard through touch control setting, so that the user can more conveniently use the whiteboard, and when the user uses the whiteboard, if some operations such as drawing, writing and the like are required to be performed, the operations can be realized through closing the touch control method, and the touch control method can be conveniently closed in the use process, so that the influence on a screen is reduced;
according to the touch control method for opening and closing the electronic whiteboard, a user can set according to the actual situation of the user, the user can switch the function of the electronic whiteboard by clicking a function button, for example, the function of the whiteboard is switched by clicking a whiteboard button, the function of the whiteboard is switched by clicking an area, so that the user can operate more conveniently, when the user uses the whiteboard, if some special demands need to operate, the user can realize the operation by clicking the function button, and when the user uses the whiteboard, some operations can be completed more conveniently.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The touch control method for opening and closing the electronic whiteboard is characterized by comprising the following steps of:
s1, acquiring coordinates of a touch switch
By clicking a button of a 'create new touch switch area' in the electronic whiteboard, further saving the coordinates required by creating the touch switch area into a drive, and then sequentially selecting a 'set touch switch area' and an 'add touch switch area', modifying and adjusting the set touch switch coordinates;
s2, storing and modifying touch control coordinates
The electronic whiteboard is internally provided with a PCB, and the PCB is formed by two groups of wires which are vertically crossed in a transverse (Y-axis) and vertical (X-axis) manner, and then when a user is in the process of operation, the following conditions can occur: 1. when the coil on the X, Y shaft is detected by touching, the switch CD4051 at the corresponding position in the circuit board outputs a high-low level, the coil on the X, Y shaft is controlled to be connected or disconnected, and when the coil on the X, Y shaft is detected by touching, no signal is output by the touch detection device, at the moment, the output end of the analog electronic switch CD4051 is directly grounded, and the touch detection device is not touched;
s3, touch screen power supply driving circuit
When the touch panel is detected to be not touched by touch, the touch screen power supply driving circuit is not started; when the touch panel is touched, the touch screen power supply driving circuit is started. When the touch detection device detects that a key of the touch panel is not pressed in the test process, the touch screen power supply driving circuit stops working, and the analog electronic switch CD4051 is converted into a high level through a low level so as to realize the lighting of the screen;
s4, coordinate recognition of touch switch
When a user touches the electronic whiteboard, the LCD display screen control chip receives a control signal sent by the touch screen controller and sends a corresponding control instruction to a corresponding channel according to the control signal, the detection device senses the touch signal, for example, when the touch point is P point, the coil senses the touch electromagnetic signal, and then the signal of the detection fracture is changed from zero to a non-zero value, the coil Y axis is scanned in the same way, the Y axis is scanned again, two voltage values Vm and vm+1 can be detected on Ym and ym+1, the two voltage values correspond to two current values respectively, vm, vn, vm+1 and vm+2, the detected 4 voltage values are respectively connected to four positions, the three-phase current value can be calculated, the touch coordinates can be calculated by using the detected 4 voltage values Vn, vn+1 and vm+1, the touch coordinates are detected by a split-phase detection method and a symmetrical detection method, and when the touch coordinates are set, the touch coordinates are set to be turned on and off, and the touch coordinates are set to be turned off.
2. The touch method for turning on and off an electronic whiteboard according to claim 1, wherein in the step S2, each group of intersecting wires is insulated; one end of the wire is grounded, the other end of the wire is connected with the input end of the analog electronic switch CD4051 of the touch screen controller through the FPC, and the number of coils in the X, Y axis direction is determined according to the size of the display.
3. The method according to claim 1, wherein in the step S2, the X-axis direction of the touch detection device is composed of 35 coils and the Y-axis is composed of 30 coils.
4. The method according to claim 1, wherein in the step S3, when the touch screen power driving circuit stops operating, the analog electronic switch CD4051 outputs a low level.
5. The method according to claim 1, wherein in the step S4, the touch signal is detected by time-sharing scanning, and when the touch sensing device performs a touch operation on a certain row on the display screen, a dot-like image appears on the display screen. If the image point is compared with the keys at the corresponding positions, when the positions of the dot patterns at the positions corresponding to the two keys are different, the display content at the corresponding positions on the screen is changed.
6. The touch method for turning on and off an electronic whiteboard according to claim 1, wherein in the step S4, the coordinate positions of the coil are Xn, xn+1 and Ym, ym+1.
7. The method for touch control of electronic whiteboard according to claim 1, wherein in the step S4, when the three-phase currents are unbalanced, the voltage values of each phase can be calculated by scanning a three-phase voltmeter; when the voltage of a certain phase deviates too much from the normal range, a three-phase current imbalance occurs.
8. The method for touch control of opening and closing an electronic whiteboard according to claim 1, wherein in the step S4, the split-phase detection method specifically includes that each phase has only one detection point (e.g. a phase), and the symmetry detection method specifically includes: in practical applications, it is very difficult to minimize the deviation between a certain phase and a normal value, or to maximize the deviation between a certain phase and a normal value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310348620.3A CN116360633A (en) | 2023-03-31 | 2023-03-31 | Touch method for opening and closing electronic whiteboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310348620.3A CN116360633A (en) | 2023-03-31 | 2023-03-31 | Touch method for opening and closing electronic whiteboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116360633A true CN116360633A (en) | 2023-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310348620.3A Pending CN116360633A (en) | 2023-03-31 | 2023-03-31 | Touch method for opening and closing electronic whiteboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116360633A (en) |
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2023
- 2023-03-31 CN CN202310348620.3A patent/CN116360633A/en active Pending
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