An electronic whiteboard touch device and an electronic whiteboard

Abstract

The present invention discloses an electronic whiteboard touch control device and an electronic whiteboard, which relate to the technical field of electronic whiteboards. The electronic whiteboard touch control device includes: a touch control module, a signal aggregation module, and at least two calculation modules; one of the at least two calculation modules is a main calculation module, and the remaining calculation modules are slave calculation modules; the main calculation module and the slave calculation modules are respectively connected to the touch control module, and the touch control module sends a sensed reception signal when sensing a touch operation; the main calculation module and the slave calculation modules generate a touch control signal based on the sensed reception signal, and send it to an external device through the signal aggregation module. The electronic whiteboard touch control device and the electronic whiteboard of the present invention can increase the operable touch area, improve the reliability of the signal transmitted by the electronic whiteboard, reduce the ports required by the computer side, reduce the cost, and improve the product quality by sending the touch control signal in a master-slave manner.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic whiteboards, and in particular, to an electronic whiteboard touch device and an electronic whiteboard. Background Art

[0002] An electronic whiteboard, such as an interactive electronic whiteboard, has functions such as writing, annotation, painting, multimedia entertainment, and web conferencing, integrating multiple technologies such as human-computer interaction, flat panel display, multimedia information processing, and network transmission. It is an optimal product for office work, teaching, and graphic interactive demonstrations in the information age. For the touch circuit of the traditional full-scan mode of the electronic whiteboard, the processing ability of a single circuit is relatively limited, which restricts the size of the available touch area. If the touch screen is too large, the processing speed of the circuit signal will be slow, which will affect the operation efficiency of the entire touch circuit. If a very large screen is required, such as a screen size of more than 100 inches, generally there are the following two solutions for the touch screen in the full-scan mode: One solution is to simply stack several touch circuits, but in this case, signals between individual circuits cannot be transmitted, and a whole piece of screen cannot be formed; another solution is to extend the signal input line and increase the number of signal output lines, which easily leads to slow signal processing or even inability to process, affecting the signal processing efficiency of the entire touch screen. Summary of the Invention

[0003] In view of this, a technical problem to be solved by the present invention is to provide an electronic whiteboard touch device and an electronic whiteboard.

[0004] According to one aspect of the present invention, there is provided a touch device for an electronic whiteboard, including: a touch module, a signal aggregation module, and at least two calculation modules; one of the at least two calculation modules is a main calculation module, and the remaining calculation modules are slave calculation modules; the main calculation module and the slave calculation modules are respectively connected to the touch module and receive the sensed reception signals sent by the touch module when sensing a touch operation; the main calculation module and the slave calculation modules generate touch signals based on the sensed reception signals and send them to an external device through the signal aggregation module.

[0005] Optionally, the touch module includes: a sensor and a reception module; the reception module is electrically connected to the sensor, and the reception module is electrically connected to the main calculation module and the slave calculation modules respectively; the main calculation module and the slave calculation modules receive the sensed reception signals sent by the reception module and generate the touch signals.

[0006] Optionally, the sensor includes a plurality of sensing area units; the number of the sensing area units is the same as the number of the reception modules, and the sensing area units are connected to the reception modules in a one-to-one correspondence.

[0007] Optionally, the total number of the main computing modules and the slave computing modules is the same as the number of the receiving modules, and the main computing modules and the slave computing modules are respectively connected to the receiving modules in one-to-one correspondence.

[0008] Optionally, the main computing module is electrically connected to the slave computing module. The main computing module generates a synchronization signal and sends the synchronization signal to the slave computing module, and the slave computing module sends the touch signal based on the synchronization signal.

[0009] Optionally, the main computing module is connected to the slave computing module through a bus, and the synchronization signal is sent through the bus.

[0010] Optionally, a driving module; the main computing module is electrically connected to the driving module, and the main computing module sends a driving signal to the driving module.

[0011] Optionally, the main computing module includes: a first signal transmission port; the slave main computing module includes: a second signal transmission port; the first signal transmission port and the second transmission port are respectively connected to the signal aggregation module.

[0012] Optionally, the first signal transmission port and the second transmission port include: a USB port, an Ethernet port; the signal aggregation module includes: a USB HUB, an Ethernet HUB; the external device includes: a PC.

[0013] According to another aspect of the present invention, there is provided an electronic whiteboard, including: the touch device of the electronic whiteboard as described above.

[0014] For the touch device of the electronic whiteboard and the electronic whiteboard of the present invention, the main computing module and the slave computing module send the touch signal to the external device through the signal aggregation module, and send the touch signal in a master-slave manner, which can increase the operable touch area, improve the reliability of signal transmission of the electronic whiteboard, reduce the ports required on the computer side, and improve the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of an embodiment of the touch device of the electronic whiteboard according to the present invention;

[0017] Figure 2Schematic diagram of another embodiment of the touch control device of the electronic whiteboard according to the present invention. Detailed implementation mode

[0018] The present invention will be described more comprehensively below with reference to the accompanying drawings, in which exemplary embodiments of the present invention are illustrated. 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. The technical solutions of the present invention will be described in various aspects below with reference to each figure and embodiment.

[0019] The "first", "second", etc. in the following text are only used to describe the difference in appearance and have no other special meanings.

[0020] Figure 1 Module schematic diagram of an embodiment of the touch control device of the electronic whiteboard according to the present invention, as Figure 1 shown: The present invention provides a touch control device for an electronic whiteboard, including: a touch control module 11, a signal aggregation module 15 and two calculation modules. One of the two calculation modules is the main calculation module 13, and the other calculation module is the slave calculation module 14. The touch control module can be set to one or more.

[0021] The touch control module 11 has a touch area for sensing touch operations and generating a sensed reception signal. The main calculation module 13 and the slave calculation module 14 are respectively connected to the touch control module 11 to receive the sensed reception signal sent by the touch control module 11. The main calculation module 13 and the slave calculation module 14 generate a touch signal based on the sensed reception signal. The main calculation module 13 and the slave calculation module 14 send the touch signal to the external device 16 through the signal aggregation module 15. The main calculation module 13 can also receive control instructions and the like sent by the external device 16 through the signal aggregation module 15.

[0022] The calculation modules of the electronic whiteboard touch control device are divided into a main calculation module 13 and a slave calculation module 14. The main calculation module 13 can both send and receive signals through the signal aggregation module 15. The external device 16 can be a computer host, a notebook computer, a tablet computer, a smart phone, etc. The main calculation module 13 is electrically connected to the slave calculation module 14, and the main calculation module 13 sends a synchronization signal to the slave calculation module 14.

[0023] The main computing module 13 generates a synchronization signal and sends the synchronization signal to the slave computing module 14. The slave computing module 14 sends a touch signal based on the synchronization signal. There can be various synchronization signals, such as a synchronization clock signal, a frame synchronization signal, etc. The slave computing module 14 uses the synchronization clock signal as the working clock and sends a touch signal according to the frame synchronization signal.

[0024] There can be various connection methods between the main computing module 13 and the slave computing module 14. For example, the main computing module 13 and the slave computing module 14 are connected through a bus. The main computing module 13 includes: a first signal transmission port. The slave main computing module 14 includes: a second signal transmission port. The first signal transmission port and the second transmission port are respectively connected to the signal aggregation module 15.

[0025] In one embodiment, the first signal transmission port and the second transmission port can be a USB port, an Ethernet port, etc. The signal aggregation module 15 can be a USB HUB, an Ethernet HUB, etc. The main computing module 13 and the slave computing module 14 can have various implementation manners. For example, the main computing module 13 and the slave computing module 14 can be implemented as a main circuit board and a slave circuit board, and only one main circuit board is provided in the electronic whiteboard touch device. The main circuit board is responsible for sending a synchronization signal to the slave circuit board. The main circuit board can both send and receive signals, and the slave circuit board only sends signals. Both the main circuit board and the slave circuit board include an ARM (Advanced RISC Machines) processor for processing the received signals, etc. Both the main circuit board and the slave circuit board have signal transmission ports, such as USB interfaces.

[0026] Figure 2 It is a schematic diagram of a module of another embodiment of the touch device of the electronic whiteboard according to the present invention, as Figure 2 shown: The touch device of the electronic whiteboard includes: a driving module 4, a touch module, a USB HUB 6, a main computing module 31, and slave computing modules 32 - 3n. The touch module includes: sensors 5, receiving modules 21 - 2n.

[0027] The sensor 5 can include multiple sensing area units. The number of sensing area units can be the same as the number of receiving modules 21 - 2n, both being n, and n can be 1, 2, 3, etc. The n sensing area units are connected to the n receiving modules in one-to-one correspondence. The total number of the main computing module 31 and the slave computing modules 32 - 3n is the same as the number of receiving modules 21 - 2n, both being n. The main computing module 31 and the slave computing modules 32 - 3n are respectively connected to the receiving modules 21 - 2n in one-to-one correspondence. The receiving modules 21 - 2n respectively generate sensed reception signals according to the touch operations sensed by the sensing area units. The main computing module 31 and the slave computing modules 32 - 3n receive the sensed reception signals sent by the receiving modules 21 - 2n and generate touch signals.

[0028] The main computing module 31 and the slave computing modules 32 - 3n send touch signals to an external device through a signal aggregation module. The signal aggregation module is a USB HUB 6, and the external device is a PC 7. The PC 7 is provided with a USB interface and is connected to the USB HUB 6 through the USB interface. The main computing module 31 and the slave computing modules 32 - 3n all have USB interfaces, and the main computing module 31 can also receive control instructions sent by the PC 7 through the USB HUB 6.

[0029] Only one main computing module is provided in the touch device of the electronic whiteboard, and all others are slave computing modules. The main computing module 31 is electrically connected to the slave computing modules 32 - 3n respectively. The main computing module 31 can be connected to the slave computing modules 32 - 3n by means of a bus or the like.

[0030] The main computing module 31 is electrically connected to the driving module 4. The main computing module 31 can receive whiteboard driving control instructions sent by the PC 7 through the USB HUB 6. The main computing module 31 sends a driving signal to the driving module 4, and the driving module 4 drives the sensor 5 to sense touch operations. The driving module 4 can also implement multiple functions. For example, the driving module 4 can be connected to a display unit and a speaker unit, and the driving module 4 can drive the display unit to display and the speaker unit to emit sound according to the received driving signal.

[0031] After the main computing module 31 sends a driving signal to the driving module 4, the main computing module 31 sends synchronization signals to the slave computing modules 32 - 3n respectively. The main computing module 31 generates synchronization signals and sends the synchronization signals to the slave computing modules 32 - 3n. The slave computing modules 32 - 3n send touch signals based on the synchronization signals. The synchronization signals can be synchronization clock signals, frame synchronization signals, etc.

[0032] The main computing module 31 and the driving module 4 can be implemented as a main circuit board and a driving circuit board, etc. The slave computing modules 32 - 3n can be implemented as slave circuit boards, and the receiving modules 21 - 2n can be implemented as receiving circuit boards. The main circuit board sends a driving signal to the driving circuit board, the main circuit board sends a synchronization signal to the slave circuit board, the receiving circuit board sends a trigger reception signal to the main circuit board and the slave circuit board, and the main circuit board and the slave circuit board are connected to the USB HUB 6 through USB interfaces. The PC 7 can obtain the touch signals sent by the main circuit board and all the slave circuit boards through 1 USB interface.

[0033] In one embodiment, the present invention provides an electronic whiteboard, including the touch device of the electronic whiteboard in any of the above embodiments. The electronic whiteboard can be a capacitive electronic whiteboard or the like.

[0034] In the electronic whiteboard touch device and the electronic whiteboard in the above embodiments, the main computing module and the slave computing module send touch signals to an external device through a signal aggregation module, and send capacitive touch signals in a master-slave manner, which can increase the operable touch area, improve the reliability of signal transmission of the electronic whiteboard, reduce the ports required by the computer side, lower the cost, and improve the product quality.

[0035] For any technical solution disclosed by the present utility model above, unless otherwise stated, if it discloses a numerical range, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is only the numerical values with obvious technical effects or representativeness among many implementable numerical values. Since there are too many numerical values to enumerate, the present utility model only discloses some numerical values to illustrate the technical solution of the present utility model. Moreover, the numerical values listed above should not constitute a limitation on the protection scope of the present utility model.

[0036] Meanwhile, for the present utility model above, if it discloses or involves components or structural members that are fixedly connected to each other, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (such as using bolts or screws), or it can also be understood as: a non-detachable fixed connection (such as riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (such as manufactured by an integral casting process) (except when it is obviously impossible to adopt the integral forming process).

[0037] In addition, for any technical solution disclosed by the present utility model above, the terms used to represent the positional relationship or shape, unless otherwise stated, include states or shapes that are approximate, similar, or close to it. Any component provided by the present utility model can either be assembled from multiple separate components or be a single component manufactured by an integral forming process.

[0038] After considering the specification and practicing the utility model disclosed herein, those skilled in the art will readily conceive of other embodiments of the present utility model. This application is intended to cover any variations, uses, or adaptations of the present utility model, which follow the general principles of the present utility model and include the common general knowledge or conventional technical means in the technical field not disclosed in this disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present utility model are pointed out by the following claims.

[0039] It should be understood that the present utility model is not limited to the precise structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only limited by the appended claims.

Claims

1. A touch control device for an electronic whiteboard, characterized in that, it includes: a touch control module, a signal aggregation module, at least two computing modules, and a driving module; The touch control module includes: a sensor and a receiving module; the receiving module is electrically connected to the sensor; the sensor includes a plurality of sensing area units; the number of the sensing area units is the same as the number of the receiving modules, and the sensing area units are connected to the receiving modules in one-to-one correspondence; One of the at least two computing modules is a main computing module, and the remaining computing modules are slave computing modules; the receiving module is electrically connected to the main computing module and the slave computing modules respectively, and the main computing module and the slave computing modules receive the sensing and receiving signals sent by the touch control module sensing a touch operation; the main computing module and the slave computing modules generate touch signals based on the sensing and receiving signals, and send the touch signals to an external device through the signal aggregation module; the total number of the main computing module and the slave computing modules is the same as the number of the receiving modules, and the main computing module and the slave computing modules are connected to the receiving modules in one-to-one correspondence respectively; Wherein, the main computing module is electrically connected to the slave computing module, the main computing module generates a synchronization signal and sends the synchronization signal to the slave computing module, and the slave computing module uses the synchronization signal as a working clock and sends the touch signal according to the synchronization signal; The main computing module is electrically connected to the driving module, the main computing module receives a whiteboard driving control instruction sent by the external device through the signal aggregation module, and sends a driving signal to the driving module based on the whiteboard driving control instruction.

2. The device according to claim 1, characterized in that, the main computing module is connected to the slave computing module through a bus, and the synchronization signal is sent through the bus.

3. The touch control device according to claim 1, characterized in that, the main computing module includes: a first signal transmission port; the slave computing module includes: a second signal transmission port; the first signal transmission port and the second signal transmission port are respectively connected to the signal aggregation module.

4. The touch control device according to claim 3, characterized in that, the first signal transmission port and the second signal transmission port include: a USB port, an Ethernet port; the signal aggregation module includes: a USB HUB, an Ethernet HUB; the external device includes: a PC.

5. An electronic whiteboard, characterized in that, it includes: the touch control device for an electronic whiteboard according to any one of claims 1 to 4.

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