CN112581742A - Method and device for controlling electronic whiteboard through infrared remote control and storage medium - Google Patents
Method and device for controlling electronic whiteboard through infrared remote control and storage medium Download PDFInfo
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- CN112581742A CN112581742A CN202011404707.0A CN202011404707A CN112581742A CN 112581742 A CN112581742 A CN 112581742A CN 202011404707 A CN202011404707 A CN 202011404707A CN 112581742 A CN112581742 A CN 112581742A
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Abstract
The invention provides a method, a device and a storage medium for controlling an electronic whiteboard through infrared remote control, wherein the device comprises a touch screen module, an Android display module and a Windows module. The Android display module is used for receiving the infrared signals, converting the infrared signals into code values, matching out keys or key combinations corresponding to the code values, and sending the keys or key combinations belonging to the Windows module to the touch screen module. And analyzing the keys or key combination of the touch screen module to obtain the HID key value and sending the HID key value to the Windows module. And the Windows module responds to the key or the key combination corresponding to the HID key value. The invention realizes the purpose of controlling the Windows module by using any combination key of the infrared remote controller, and improves the user experience.
Description
Technical Field
The invention belongs to the technical field of touch screen control of electronic whiteboards, and particularly relates to a method, a device and a storage medium for controlling an electronic whiteboard by utilizing infrared remote control.
Background
With the development of electronic information technology, electronic whiteboards are used more and more widely, and users have higher requirements on the convenience degree of screen control of the electronic whiteboards. At present, an electronic whiteboard system mainly includes an Android display module, a touch screen module, and an OPS (Operating system) module. The OPS module is typically a Windows module. The Windows module generally receives touch input or a mouse and a keyboard, and cannot be directly controlled by using an infrared remote controller. Some Windows combination key operations such as CTRL + ALT + DEL, ALT + F4, etc. require the use of keyboard or soft keyboard operations, nor do they directly use touch operations. The above-mentioned problems bring a bad experience to the user.
Disclosure of Invention
The invention aims to provide a method, a device and a storage medium for controlling an electronic whiteboard by using infrared remote control, which can solve the problem that a Windows module cannot be directly controlled by using an infrared remote controller in the prior art.
The purpose of the invention is realized by the following technical scheme:
in a first aspect, the present invention provides a method for controlling an electronic whiteboard through infrared remote control, including the following steps:
step 2, receiving the infrared signal by an Android display module of the electronic whiteboard, and analyzing the infrared signal to obtain a code value;
step 3, the Android display module searches a key or a key combination corresponding to the code value;
step 4, the Android display module judges whether the key or the key combination corresponding to the code value is a Windows module function key, and if so, the character string of the key or the key combination is sent to the touch screen;
and 5, after the system of the touch screen receives the character string, analyzing the character string to obtain the HID key value of the key corresponding to the character string. Sending the HID key value of the key to the Windows module through the USB interface;
and 6, the Windows module responds to the key corresponding to the HID key value or the function of the key combination.
Further, the step 2 comprises:
step 201, an infrared receiving module of an Android display module converts an infrared signal into a continuously converted high level and a continuously converted low level and sends the high level and the low level to a driving unit of the Android display module;
step 202, the driving unit of the Android display module analyzes the rising edge or the falling edge of the high level, so that a code value corresponding to the infrared signal sent by the remote controller is obtained.
Further, the method for searching the key or key combination corresponding to the code value comprises the following steps: traversing a two-dimensional array set composed of a plurality of two-dimensional arrays, recording the corresponding relation between the code values and the key or key combination by the two-dimensional arrays, and matching the key or key combination corresponding to the code values by searching the code values in the two-dimensional arrays.
In a second aspect, the invention provides a device for controlling an electronic whiteboard through infrared remote control, which comprises a touch screen module, an Android display module and a Windows module; the Android display module is connected with the touch screen module through a serial port, and the touch screen module is connected with the Windows module through a USB interface; the Android display module comprises an infrared receiver, a driving unit and a storage unit, wherein:
the infrared receiver is used for receiving an infrared signal sent by the remote controller and converting the infrared signal into a continuously converted high level and a continuously converted low level;
the driving unit analyzes the rising edge or the falling edge of the high level to obtain a code value corresponding to the infrared signal sent by the remote controller, traverses the two-dimensional array set and searches a key or a key combination corresponding to the code value; sending the keys or key combinations belonging to the Windows module to the touch screen module;
the storage unit is used for storing the two-dimensional array set.
Furthermore, the two-dimensional array set is composed of a plurality of two-dimensional array numbers, and each two-dimensional array records the corresponding relation between the code value and the key or the key combination.
Further, the touch screen module is configured to analyze a key or a key combination of the Windows module to obtain an HID key value of the key corresponding to the key or the key combination, and send the HID key value of the key to the Windows module.
Furthermore, the Windows module responds to the key or key combination function corresponding to the HID key.
In a third aspect, the present invention provides a storage medium, in which a computer program is stored, and the computer program is run to execute the method for controlling an electronic whiteboard through infrared remote control.
In a fourth aspect, the present invention provides an electronic whiteboard, including the above apparatus for controlling an electronic whiteboard by infrared remote control.
The method for controlling the electronic whiteboard by using the infrared remote control can be adapted to various remote controllers to control the Android display module and the Windows module, so that the purpose of controlling the Windows module by using any combination key of the infrared remote controllers is achieved, and the user experience is improved.
Drawings
Fig. 1 is a diagram of steps of a method for controlling an electronic whiteboard by infrared remote control according to the present invention;
fig. 2 is a schematic structural diagram of an apparatus for controlling an electronic whiteboard through infrared remote control according to the present invention;
FIG. 3 is a schematic diagram illustrating the process of analyzing the rising or falling edge of the high level to obtain the code value.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The method for controlling the electronic whiteboard through infrared remote control, disclosed by the invention, as shown in fig. 1, comprises the following steps:
The remote controller sends key information to the electronic whiteboard through infrared signals, which belongs to the prior art, and the signal transmission principle is not described in detail here.
And 2, receiving the infrared signal by an Android display module of the electronic whiteboard, and analyzing the infrared signal to obtain a code value.
Further, in a preferred embodiment of the present application, step 2 includes:
step 201, an infrared receiving module of an Android display module converts an infrared signal into a high level and a low level which are continuously converted, and the high level and the low level are sent to a driving unit of the Android display module through one GPIO.
Step 202, a driving unit of the Android display module analyzes a rising edge or a falling edge of a high level, so that a code value corresponding to an infrared signal sent by a remote controller is obtained.
Common code values are those of the NEC protocol or the RC5 protocol.
The specific process of analyzing the rising edge or the falling edge to obtain the code value is described as follows in conjunction with fig. 3:
taking NEC infrared code as an example for explanation, fig. 3 is a standard waveform of NEC infrared code, after a series of waveforms is received by the driving unit, the waveform is decoded, the current time is recorded for a rising edge, the time is recorded when the next rising edge is obtained, the time difference is judged, and the current value is 0 or 1, and the value of the series of waveforms can be obtained according to the method. Referring to fig. 3, a serial code having a high duration of 0.56ms, a low duration of 0.565ms and a period of 1.125ms is used to represent one bit "0". A serial code with a high duration of 0.56ms, a low duration of 1.685ms and a period of 2.25ms is used to represent one bit "1".
The RC5 code is also parsed in a similar manner, which is not described herein.
And 3, traversing the two-dimensional array set by the Android display module, and searching a key or a key combination corresponding to the code value.
A plurality of two-dimensional array numbers are arranged in a storage module of the Android display module to form a two-dimensional array set. The remote control module is used for recording code values corresponding to all keys of the infrared remote controller, for example, keys of CTRL + ALT + DEL on the remote controller, and after the alignment receiving module is pressed down, a code value of 0Xff00AD can be finally analyzed by the driving unit of the Android display module. One such two-dimensional array {0xff00AD, "CTRL + ALT + DEL" }, records 0Xff00AD, which corresponds to the key combination CTRL + ALT + DEL.
The two-dimensional arrays in the two-dimensional array set can be added or deleted according to actual needs.
And 4, judging whether the key or the key combination corresponding to the code value is a Windows module function key by the Android display module, and if so, sending a character string of the key or the key combination to the touch screen.
And 5, after the system of the touch screen receives the character string, analyzing the character string to obtain the HID key value of the key corresponding to the character string. And sending the HID key value of the key to the Windows module through the USB interface.
And 6, the Windows module responds to the key corresponding to the HID key value or the function of the key combination.
Because the touch screen sends data meeting the HID standard to the Windows through the USB, any shortcut key combination to the Windows can be realized only by modifying the sending character string of the Android terminal.
The code value and the character string corresponding relation which are arranged in the Android display module can be used for distinguishing which code values need to be sent to the Windows module and which code values need to be sent to the Android display module, so that the Android display module and the Windows module can be operated by one remote controller at the same time.
The invention also provides a device for controlling the electronic whiteboard through infrared remote control, which comprises a touch screen module, an Android display module and a Windows module as shown in figure 2. The Android display module is connected with the touch screen module through a serial port, and the touch screen module is connected with the Windows module through a USB interface.
The Android display module comprises an infrared receiver, a driving unit and a storage unit, wherein:
the infrared receiver is used for receiving the infrared signal sent by the remote controller and converting the infrared signal into a continuously converted high level and a continuously converted low level.
The driving unit analyzes the rising edge or the falling edge of the high level to obtain a code value corresponding to the infrared signal sent by the remote controller, traverses the two-dimensional array set, and searches a key or a key combination corresponding to the code value. And sending the keys or key combinations belonging to the Windows module to the touch screen module.
The storage unit stores a two-dimensional array set. The two-dimensional array set is composed of a plurality of two-dimensional arrays, and each two-dimensional array records the corresponding relation between code values and keys or key combinations.
The touch screen module is used for analyzing the keys or key combinations of the Windows module to obtain HID key values of the keys corresponding to the character strings, and sending the HID key values of the keys to the Windows module through the USB interface.
And the Windows module responds to the key or the key combination corresponding to the HID key value.
The present invention also provides a storage medium having a computer program stored therein, and when the computer program is executed, the following method may be performed:
And 2, receiving the infrared signal by an Android display module of the electronic whiteboard, and analyzing the infrared signal to obtain a code value.
And 3, traversing the two-dimensional array set by the Android display module, and searching a key or a key combination corresponding to the code value.
And 4, judging whether the key or the key combination corresponding to the code value is a Windows module function key by the Android display module, and if so, sending a character string of the key or the key combination to the touch screen.
And 5, after the system of the touch screen receives the character string, analyzing the character string to obtain the HID key value of the key corresponding to the character string. And sending the HID key value of the key to the Windows module through the USB interface.
And 6, the Windows module responds to the key corresponding to the HID key value or the function of the key combination.
Further, in a preferred embodiment of the present application, step 2 includes:
step 201, an infrared receiving module of an Android display module converts an infrared signal into a high level and a low level which are continuously converted, and the high level and the low level are sent to a driving unit of the Android display module through one GPIO.
Step 202, a driving unit of the Android display module analyzes a rising edge or a falling edge of a high level, so that a code value corresponding to an infrared signal sent by a remote controller is obtained.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The above description is for the purpose of illustrating embodiments of the invention and is not intended to limit the invention, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the invention shall fall within the protection scope of the invention.
Claims (9)
1. A method for controlling an electronic whiteboard through infrared remote control is characterized by comprising the following steps:
step 1, the remote controller sends a key message to the electronic whiteboard through an infrared signal;
step 2, receiving the infrared signal by an Android display module of the electronic whiteboard, and analyzing the infrared signal to obtain a code value;
step 3, the Android display module searches a key or a key combination corresponding to the code value;
step 4, the Android display module judges whether the key or the key combination corresponding to the code value is a Windows module function key, and if so, the character string of the key or the key combination is sent to the touch screen;
step 5, after the system of the touch screen receives the character string, analyzing the character string to obtain an HID key value of a key corresponding to the character string; sending the HID key value of the key to the Windows module through the USB interface;
and 6, the Windows module responds to the key corresponding to the HID key value or the function of the key combination.
2. The method for controlling the electronic whiteboard through the infrared remote control according to claim 1, wherein the step 2 comprises:
step 201, an infrared receiving module of an Android display module converts an infrared signal into a continuously converted high level and a continuously converted low level and sends the high level and the low level to a driving unit of the Android display module;
step 202, the driving unit of the Android display module analyzes the rising edge or the falling edge of the high level, so that a code value corresponding to the infrared signal sent by the remote controller is obtained.
3. The method for controlling the electronic whiteboard through the infrared remote control according to claim 1, wherein the method for searching the key or the key combination corresponding to the code value comprises the following steps: traversing a two-dimensional array set composed of a plurality of two-dimensional arrays, recording the corresponding relation between the code values and the key or key combination by the two-dimensional arrays, and matching the key or key combination corresponding to the code values by searching the code values in the two-dimensional arrays.
4. A device for controlling an electronic whiteboard through infrared remote control comprises a touch screen module, an Android display module and a Windows module; the Android display module is connected with the touch screen module through a serial port, and the touch screen module is connected with the Windows module through a USB interface; the Android display module is characterized by comprising an infrared receiver, a driving unit and a storage unit, wherein:
the infrared receiver is used for receiving an infrared signal sent by the remote controller and converting the infrared signal into a continuously converted high level and a continuously converted low level;
the driving unit analyzes the rising edge or the falling edge of the high level to obtain a code value corresponding to the infrared signal sent by the remote controller, traverses the two-dimensional array set and searches a key or a key combination corresponding to the code value; sending the keys or key combinations belonging to the Windows module to the touch screen module;
the storage unit is used for storing the two-dimensional array set.
5. The apparatus according to claim 4, wherein said two-dimensional array set is composed of a plurality of two-dimensional arrays, each two-dimensional array records the corresponding relationship between code values and keys or key combinations.
6. The device of claim 4, wherein the touch screen module is configured to analyze the key or the key combination of the Windows module to obtain the HID key value of the key corresponding to the key or the key combination, and send the HID key value of the key to the Windows module.
7. The device of claim 6, wherein the Windows module is responsive to the function of the key or key combination corresponding to the HID key.
8. A storage medium having a computer program stored therein, wherein the computer program is executed to perform the method of controlling an electronic whiteboard by infrared remote control according to any one of claims 1 to 3.
9. An electronic whiteboard, comprising the infrared remote control electronic whiteboard device as claimed in any one of claims 4 to 7.
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| CN202011404707.0A CN112581742A (en) | 2020-12-02 | 2020-12-02 | Method and device for controlling electronic whiteboard through infrared remote control and storage medium |
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| CN202011404707.0A CN112581742A (en) | 2020-12-02 | 2020-12-02 | Method and device for controlling electronic whiteboard through infrared remote control and storage medium |
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