CN112712688A - Remote controller, display device, display remote control system and remote control method thereof - Google Patents
Remote controller, display device, display remote control system and remote control method thereof Download PDFInfo
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
- H04N21/42206—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor characterized by hardware details
- H04N21/42221—Transmission circuitry, e.g. infrared [IR] or radio frequency [RF]
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Abstract
The invention discloses a remote controller, display equipment, a display remote control system and a remote control method thereof, wherein the display remote control system comprises: the remote controller is provided with a first key and a laser transmitter and comprises a remote control chip, and the first key and the laser transmitter are both connected with the remote control chip; the remote control chip is used for detecting the pressing state of the first key so as to trigger the laser remote control transmitter to transmit a laser signal; the display device comprises a display screen and a main control system, the display screen is connected with the main control system, and the main control system comprises a signal acquisition module and a character recognition module. The technical scheme of the invention can improve the efficiency of character input operation and improve the convenience of character input operation.
Description
Technical Field
The invention relates to the field of display equipment, in particular to a remote controller, display equipment, a display remote control system and a remote control method thereof.
Background
Various display devices are common electronic devices in modern homes. In the existing display remote control system, a command is generally transmitted to a display device through a key on a remote controller. For a display device with a font input function, when a character string or a Chinese character needs to be input, a virtual keyboard can only be called on a display screen of the display device, and then the virtual keyboard can be moved to a virtual key grid required by a user according to the sequence of one grid through a direction key on a remote controller, so as to realize the input of the character string or the Chinese character. However, this operation is very inconvenient, and delays the input time, resulting in low operation efficiency.
Therefore, a display remote control system capable of improving the operation efficiency and the operation convenience is urgently needed.
Disclosure of Invention
The invention mainly aims to provide a remote controller, display equipment, a display remote control system and a remote control method thereof, aiming at improving the efficiency of character input operation and improving the convenience of character input operation.
In order to achieve the purpose, the invention provides a remote controller, wherein the remote controller is provided with a first key and a laser transmitter, the remote controller comprises a remote control chip, and the first key and the laser transmitter are both connected with the remote control chip; the remote control chip is used for detecting the pressing state of the first key so as to trigger the laser transmitter to transmit a laser signal.
Optionally, the remote controller is further provided with a second key, the remote controller further comprises a wireless transmitting module, and the second key and the wireless transmitting module are both connected with the remote control chip; the remote control chip is also used for detecting the pressing state of the second key so as to trigger the wireless transmitting module to transmit a wireless signal.
Optionally, the remote controller is provided with a laser driving circuit, and the first key, the laser emitter and the remote control chip are all connected with the laser driving circuit.
Optionally, the remote controller is further provided with a power circuit, and the power circuit is connected with the laser driving circuit.
Optionally, the laser driving circuit includes a switch, a transistor Q1, a transistor Q2, a capacitor, and a trimming resistor, the positive electrode of the laser emitter is connected to one end of the switch, the other end of the switch is connected to the collector of the transistor Q2 and one end of the capacitor, the base of the transistor Q2 is connected to the collector of the transistor Q1, the other end of the capacitor is connected to the base of the transistor Q1 and one end of the trimming resistor, the other end of the trimming resistor and the emitter of the transistor Q2 are connected to the positive electrode of the power circuit, the emitter of the transistor Q1 and the negative electrode of the laser emitter are connected to the negative electrode of the power circuit, wherein the switch is triggered when the first key is pressed.
Optionally, the power supply circuit includes a charging chip, a voltage boosting and stabilizing chip, a rechargeable battery, and a charging socket connected to the charging chip.
In order to achieve the above object, the present invention further provides a display device, where the display device includes a display screen and a main control system, the display screen is connected to the main control system, and the main control system includes a signal acquisition module and a character recognition module; the signal acquisition module is used for receiving laser signals, converting the laser signals into corresponding coordinate information according to the movement track of the laser signals, and transmitting the coordinate information to the character recognition module; and the character recognition module is used for recognizing corresponding character information according to the coordinate information and transmitting the character information to the display screen.
Optionally, the signal acquisition module includes the main control chip, the display screen is four-wire resistance screen, just the detection resistance of four-wire resistance screen is photo resistance, the X axle positive direction lead wire of display screen with the GPIO1 pin of main control chip is connected, the Y axle positive direction lead wire of display screen with the GPIO2 pin of main control chip is connected, the X axle negative direction lead wire of display screen with the GPIO3 pin of main control chip is connected, the Y axle negative direction lead wire of display screen with the GPIO4 pin of main control chip is connected, the X axle negative direction lead wire coupling of display screen extremely first analog-to-digital converter in the main control chip, the Y axle negative direction lead wire coupling of display screen extremely second analog-to-digital converter in the main control chip.
Optionally, the positive X-axis lead of the display screen is further coupled to a power supply pin VDD of the main control chip through a resistor R1.
In order to achieve the above object, the present invention further provides a display remote control system, including: the remote controller is provided with a first key and a laser transmitter and comprises a remote control chip, and the first key and the laser transmitter are both connected with the remote control chip; the remote control chip is used for detecting the pressing state of the first key so as to trigger the laser transmitter to transmit a laser signal; the display device comprises a display screen and a main control system, the display screen is connected with the main control system, and the main control system comprises a signal acquisition module and a character recognition module; the signal acquisition module is used for receiving the laser signal, converting the laser signal into corresponding coordinate information according to the movement track of the laser signal and transmitting the coordinate information to the character recognition module; and the character recognition module is used for recognizing corresponding character information according to the coordinate information and transmitting the character information to the display screen.
Optionally, the signal acquisition module includes: the main control chip, the display screen is four-wire resistance screen, just the detection resistance of four-wire resistance screen is photo resistance, the X axle positive direction lead wire of display screen with the GPIO1 pin of main control chip is connected, the Y axle positive direction lead wire of display screen with the GPIO2 pin of main control chip is connected, the X axle negative direction lead wire of display screen with the GPIO3 pin of main control chip is connected, the Y axle negative direction lead wire of display screen with the GPIO4 pin of main control chip is connected, the X axle negative direction lead wire coupling of display screen extremely first adc in the main control chip, the Y axle negative direction lead wire coupling of display screen extremely second adc in the main control chip.
Optionally, the positive X-axis lead of the display screen is further coupled to a power supply pin VDD of the main control chip through a resistor R1.
Optionally, the remote controller is further provided with a second key, the remote controller further comprises a wireless transmitting module, and the second key and the wireless transmitting module are both connected with the remote control chip; the remote control chip is also used for detecting the pressing state of the second key so as to trigger the wireless transmitting module to transmit a wireless signal.
Optionally, the remote controller is provided with a laser driving circuit, and the first key, the laser emitter and the remote control chip are all connected with the laser driving circuit.
Optionally, a power circuit is further arranged in the remote controller, and the power circuit is connected with the laser driving circuit.
Optionally, the laser driving circuit includes a switch, a transistor Q1, a transistor Q2, a capacitor, and a trimming resistor, the positive electrode of the laser emitter is connected to one end of the switch, the other end of the switch is connected to the collector of the transistor Q2 and one end of the capacitor, the base of the transistor Q2 is connected to the collector of the transistor Q1, the other end of the capacitor is connected to the base of the transistor Q1 and one end of the trimming resistor, the other end of the trimming resistor and the emitter of the transistor Q2 are connected to the positive electrode of the power circuit, the emitter of the transistor Q1 and the negative electrode of the laser emitter are connected to the negative electrode of the power circuit, wherein the switch is triggered when the first key is pressed.
Optionally, the power supply circuit includes a charging chip, a voltage boosting and stabilizing chip, a rechargeable battery, and a charging socket connected to the charging chip.
In order to achieve the above object, the present invention further provides a remote control method of a display remote control system, where the display remote control system includes a remote controller and a display device, and the remote control method includes the following steps:
receiving a laser signal transmitted by the remote controller, and converting the laser signal into corresponding coordinate information according to the movement track of the laser signal;
identifying the coordinate information as corresponding character information;
and displaying the character information.
Further, the step of "recognizing as corresponding character information according to the coordinate information" includes:
establishing a characteristic set of each Chinese character stroke type, an absolute position and an intersection relation as a standard;
recording the stroke writing characteristics of the handwritten Chinese characters, and establishing a characteristic set of the handwritten Chinese characters;
comparing the standard Chinese character feature set with the handwritten Chinese character feature set, and establishing a one-to-one corresponding relation between standard Chinese character strokes and handwritten Chinese character strokes;
and carrying out comprehensive similarity judgment on the strokes which are not established through the corresponding relation in the steps to realize the establishment of the corresponding relation between all strokes in the handwritten Chinese characters and the standard Chinese characters.
In order to achieve the above object, the present invention further provides a remote control method of a display remote control system, where the display remote control system includes a remote controller and a display device, the remote controller is provided with a first key and a laser transmitter, and the remote control method includes the following steps:
detecting whether the first key is in a pressed state;
when the first key is detected to be in a pressed state, triggering the laser transmitter to transmit the laser signal to the display equipment;
and driving the display equipment to display corresponding character information according to the laser signal.
Further, a second key and a wireless transmitting module are further arranged on the remote controller, and the step of driving the display device to display corresponding character information according to the laser signal comprises the following steps:
detecting whether the second key is in a pressed state;
when the second key is detected to be in a pressed state, triggering the wireless sending module to send a wireless signal to the display equipment;
and according to the wireless signal, commanding the display equipment to execute the step of displaying corresponding character information according to the laser signal.
In the technical scheme of the invention, when a user presses a first key, a remote control chip scans the first key to be pressed down to enter a writing state, a laser transmitter is triggered to act to transmit a laser signal to a display screen of display equipment, the user can control a remote controller to move according to a character to be written, a movement track of the character is drawn on the display screen of the display equipment, when the user finishes the drawing action of the character, a second key is pressed, the remote control chip scans the second key to be pressed down to recognize that the writing action is finished, a signal acquisition module of a main control system acquires the laser signal containing the movement track through the display screen to convert the movement track of the laser signal into corresponding coordinate information and transmit the coordinate information to a character recognition module, the character recognition module compares the movement track in a database to determine and generate corresponding character information according to the standard with the highest similarity, then the character is transmitted to a display screen, and finally the character is displayed by the display screen. So, can effectively promote the simple operation nature to can form the character fast, thereby improve the efficiency of character input, the practicality is strong, is fit for popularizing and applying.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating an embodiment of a remote control system according to the present invention;
FIG. 2 is a schematic diagram of the circuit connection between the display screen and the signal acquisition module of the remote control system shown in FIG. 1;
FIG. 3 is a schematic diagram of a laser driving circuit in the remote control system shown in FIG. 1;
FIG. 4 is a flowchart illustrating a remote control method of a remote control system according to a first embodiment of the present invention;
FIG. 5 is a flowchart illustrating a remote control method of a remote control system according to a second embodiment of the present invention;
FIG. 6 is a flowchart illustrating a remote control method of a remote control system according to a third embodiment of the present invention;
fig. 7 is a flowchart illustrating a remote control method of a remote control system according to a fourth embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Display |
20 | |
| 10 | |
21 | |
| 11 | |
22 | |
| 12 | |
23 | Character recognition module |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention also provides a display remote control system 100.
In an embodiment of the present invention, as shown in fig. 1, the display remote control system 100 includes: the remote controller 10 is provided with a first key and a laser emitter, the remote controller 10 comprises a remote control chip (the remote control chip can adopt a PT2262 chip), and the first key, the second key and the laser emitter are all connected with the remote control chip; the remote control chip is used for detecting the pressing state of the first key so as to trigger the laser transmitter to transmit a laser signal; the laser transmitter is used for transmitting the laser signal; the display device 20, the display device 20 may specifically be a television, the display device 20 includes a display screen 21 and a main control system, the display screen 21 is connected with the main control system, and the main control system includes a signal acquisition module 22 and a character recognition module 23; the signal acquisition module 22 is configured to receive the laser signal, convert the laser signal into corresponding coordinate information according to a motion trajectory of the laser signal, and transmit the coordinate information to the character recognition module 23; the character recognition module 23 is configured to recognize the coordinate information as corresponding character information, and transmit the character information to the display screen 21.
In the technical scheme of the invention, the first key is used for starting writing, when a user presses the first key, the remote control chip scans that the first key is pressed down to enter a writing state, the laser emitter is triggered to act, a laser signal is emitted to the display screen 21 of the display device 20, the user can control the remote controller 10 to move according to a character to be written, the movement locus of the character is scribed on the display screen 21 of the display device 20, and after the user finishes the scribing action of the character, the signal acquisition module 22 of the main control system acquires the laser signal containing the motion track through the display screen 21, so as to convert the movement track of the laser signal into corresponding coordinate information, transmit the coordinate information to the character recognition module 23, compare the coordinate information in the database by the character recognition module 23, and determining and generating corresponding character information according to the standard with the highest similarity, transmitting the corresponding character information to the display screen 21, and finally displaying the character on the display screen 21. So, can effectively promote the simple operation nature to can form the character fast, thereby improve the efficiency of character input, the practicality is strong, is fit for popularizing and applying.
Referring to fig. 2, as an embodiment of the present invention, the signal acquisition module 22 includes: the main control chip, display screen 21 is four-wire resistance screen, just the detection resistance of four-wire resistance screen is photo resistance, the X axle positive direction lead wire of display screen 21 with the GPIO1 pin of main control chip is connected, the Y axle positive direction lead wire of display screen 21 with the GPIO2 pin of main control chip is connected, the X axle negative direction lead wire of display screen 21 with the GPIO3 pin of main control chip is connected, the Y axle negative direction lead wire of display screen 21 with the GPIO4 pin of main control chip is connected, the X axle negative direction lead wire coupling of display screen 21 extremely first analog-to-digital converter in the main control chip, the Y axle negative direction lead wire coupling of display screen 21 extremely second analog-to-digital converter in the main control chip. The positive X-axis lead of the display screen 21 is also coupled to a power supply VDD pin of the main control chip through a resistor R1.
It should be noted that the four-wire resistive screen is a composite film screen, and the four-wire resistive analog quantity technology is to increase a constant voltage for each layer when two functional layers work: a vertical direction and a horizontal direction, for a total of four cables. The specific electric structure of the four-wire resistance screen comprises two resistance coatings, wherein the two resistance coatings are separated, two parallel metal strips are arranged on two sides of one resistance coating to serve as a pair of electrodes, the other two parallel metal strips perpendicular to the metal strips are arranged on two sides of the other resistance coating to serve as the other pair of electrodes, and when voltage is applied to the two electrodes of one resistance coating, uniform and continuous parallel voltage distribution is formed on the working surface of the resistance coating. Fig. 2 is a simple equivalent circuit schematic diagram of the display screen 21. The four lead wires of the display screen 21 are defined as an X-axis positive direction lead wire, a Y-axis positive direction lead wire, an X-axis negative direction lead wire, and a Y-axis negative direction lead wire, respectively. In the technical scheme, two layers of resistor coatings are used as detection resistors, all the resistor coatings adopt photoresistors, according to the principle that the resistance value of the photoresistors changes along with the light intensity, when a display screen receives laser signals, the current value of the position, corresponding to the laser point, on each resistor coating changes, the first analog-to-digital converter ADC1 and the second digital converter ADC2 convert the obtained analog signals into digital signals, and therefore the coordinates of the X axis and the Y axis corresponding to the laser point are calculated by a main control chip. It is easy to understand that, when the display screen receives a plurality of continuous laser points, the main control chip may correspondingly calculate the coordinates of the motion trajectory of the laser line formed by the laser points.
The specific calculation method of the laser coordinate comprises the following steps:
position of x-axis: x ═ ((Y + sense)/VDD) ((X + sense) - (X-sense)),
position of y-axis: y ═ ((X + sense)/VDD) — (Y + sense) - (Y-sense)).
The driving process of the four-wire resistive screen comprises three states, wherein the first state is a standby state, laser is not transmitted to the four-wire resistive screen at the moment, the second state is a state for scanning the Y axis, the second state is a state for acquiring the coordinate value of the X axis of the laser received by the four-wire resistive screen, the third state is a state for scanning the X axis, and the third state is a state for acquiring the coordinate value of the Y axis of the laser received by the four-wire resistive screen.
Referring to fig. 1, in an embodiment of the present invention, a second key is further disposed on the remote controller 10, the remote controller 10 further includes a wireless transmitting module, and the second key and the wireless transmitting module are both connected to the remote control chip; the remote control chip is also used for detecting the pressing state of the second key so as to trigger the wireless transmitting module to transmit a wireless signal.
In this embodiment, the second key is used to confirm that writing is completed, when the second key is pressed, the remote control chip scans that the second key is pressed, and the writing state is completed, at this time, the remote control chip transmits a wireless signal to the display device 20 by triggering the wireless transmission module, and the display device 20 acquires information that writing is completed after receiving the wireless signal, so that the main control system of the display device 20 displays corresponding character information on the display screen 21 of the display device 20 after processing by the signal acquisition module 22 and the character recognition module 23 according to the laser signal acquired at the stage from the time point of pressing the first key to the time point of pressing the second key. Of course, the display device 20 may acquire the information that the writing action is completed, and may also be implemented in other manners, for example, the writing action may be determined by detecting the time length of the writing pause, and when the time length of the writing pause of the user through the remote controller 10 reaches a preset value, the display device 20 may automatically determine that the writing action is completed. However, it is easy to understand that, compared with determining whether the writing action is completed through the time duration of the pause, the information of completing the writing action is sent to the display device 20 by pressing the second key, the recognition is faster and more accurate, the recognition speed can be increased, the probability of misjudgment can be reduced, and the use experience of the user can be improved.
Referring to fig. 1, in an embodiment of the present invention, the remote controller 10 is provided with a laser driving circuit 11, and the first key, the laser transmitter and the remote control chip are all connected to the laser driving circuit 11. Further, a power circuit 12 is further disposed in the remote controller 10, and the power circuit 12 is connected to the laser driving circuit 11. It is understood that the laser driving circuit 11 and the power supply circuit 12 can be implemented by the prior art, and the invention is not limited thereto.
Further, referring to fig. 3, the laser driving circuit 11 includes a switch, a transistor Q1, a transistor Q2, a capacitor, and a trimming resistor, wherein a positive electrode of the Laser Emitter (LED) is connected to one end of the switch, another end of the switch is connected to a collector of the transistor Q2 and one end of the capacitor, a base of the transistor Q2 is connected to a collector of the transistor Q1, another end of the capacitor is connected to a base of the transistor Q1 and one end of the trimming resistor, another end of the trimming resistor and an emitter of the transistor Q2 are connected to a positive electrode of the power circuit 12, an emitter of the transistor Q1 and a negative electrode of the Laser Emitter (LED) are connected to a negative electrode of the power circuit 12, and the switch is triggered by the first key press. The triode Q1 adopts 3DG6, the triode Q2 adopts 3A multiplied by 31, the capacitor adopts 100 muF, and the trimming resistor adopts 47K omega. Through above-mentioned circuit design, the scintillation laser point can be launched to the remote controller, compares traditional continuous laser point of lasting and can attract more attention, and it is obvious to guide the effect, can promote user's use experience.
Further, the power circuit 12 includes a charging chip, a voltage boosting and stabilizing chip, a rechargeable battery, and a charging socket connected to the charging chip. Wherein, charging chip can adopt TP4056 chip, and the steady voltage chip that steps up can adopt BL8530 chip, and charging socket is located remote controller 10's surface, can make rechargeable battery storage electric energy through charging socket. The electric energy stored in the rechargeable battery can supply power to the remote control circuit 11 and the laser driving circuit 11 through the charging chip and the voltage boosting and stabilizing chip, so that the remote control circuit 11 and the laser driving circuit 11 work normally.
Based on the hardware architecture of the display remote control system, a first embodiment of the remote control method of the display remote control system according to the present invention is provided, where the display remote control system includes a remote controller and a display device, and referring to fig. 4, in the first embodiment, the remote control method includes the following steps:
s100, receiving a laser signal transmitted by the remote controller, and converting the laser signal into corresponding coordinate information according to the movement track of the laser signal;
s110, identifying the character information as corresponding character information according to the coordinate information;
and S120, displaying the character information.
In the technical scheme of the invention, the display device 20 comprises a display screen 21 and a main control system, wherein the display screen 21 is connected with the main control system, and the main control system comprises a signal acquisition module 22 and a character recognition module 23; the signal acquisition module 22 is configured to receive the laser signal, convert the laser signal into corresponding coordinate information according to a motion trajectory of the laser signal, and transmit the coordinate information to the character recognition module 23; the character recognition module 23 is configured to recognize the coordinate information as corresponding character information, and transmit the character information to the display screen 21. So, the user can control the remote controller motion according to the character that wants to write, draws the movement track of this character at display device's display screen, and display device just shows the character that the movement track of this laser corresponds automatically, can effectively promote the simple operation nature to can form the character fast, thereby improve the efficiency of character input, the practicality is strong, is fit for popularizing and applying.
Further, based on the first embodiment of the remote control method, a second embodiment of the remote control method of the present invention is provided, referring to fig. 5, in the second embodiment, step S110 includes:
s111, establishing a feature set of each Chinese character stroke type, an absolute position and an intersection relation as a standard;
s112, recording the stroke writing characteristics of the handwritten Chinese characters, and establishing a characteristic set of the handwritten Chinese characters;
s113, comparing the standard Chinese character feature set with the handwritten Chinese character feature set, and establishing a one-to-one corresponding relation between standard Chinese character strokes and handwritten Chinese character strokes;
s114, comprehensive similarity judgment is carried out on the strokes which are not established through the corresponding relation in the steps, and the establishment of the corresponding relation between all the strokes in the handwritten Chinese character and the standard Chinese character is realized.
Wherein, the comparison process may comprise: stroke type uniqueness judgment, absolute position uniqueness judgment, intersection feature uniqueness judgment and relative position similarity judgment. Through the comparison processing, the one-to-one corresponding relation between the standard Chinese character strokes and the handwritten Chinese character strokes is established, so that the characters corresponding to the movement tracks of the laser can be identified, and the method has the advantages of objectivity, high efficiency and accuracy. It is understood that the character recognition method of the character recognition module 23 may also adopt other manners known in the art, and the present invention is not limited thereto.
Based on the hardware architecture of the display remote control system, a third embodiment of the remote control method of the display remote control system according to the present invention is provided, where the display remote control system includes a remote controller and a display device, the remote controller is provided with a first key and a laser transmitter, and referring to fig. 6, in the third embodiment, the remote control method includes the following steps:
s200, detecting whether the first key is in a pressed state;
s210, when the first key is detected to be in a pressed state, triggering the laser transmitter to transmit the laser signal to the display equipment;
and S220, driving the display equipment to display corresponding character information according to the laser signal.
According to the technical scheme, when a user presses a first key, a remote control chip scans that the first key is pressed down, the writing state is achieved, a laser transmitter is triggered to act, a laser signal is emitted to a display screen of display equipment, the user can control a remote controller to move according to a character to be written, a movement track of the character is drawn on the display screen of the display equipment, after the user finishes the drawing action of the character, a main control system of the display equipment collects the laser signal containing the movement track, the movement track of the laser signal is converted into corresponding coordinate information, the coordinate information is compared in a database, the corresponding character information is determined and generated according to a standard with the highest similarity degree, the corresponding character information is transmitted to the display screen, and finally the character is displayed by the display screen. So, can effectively promote the simple operation nature to can form the character fast, thereby improve the efficiency of character input, the practicality is strong, is fit for popularizing and applying.
Further, based on the third embodiment of the remote control method, a fourth embodiment of the remote control method of the present invention is provided, referring to fig. 7, in the fourth embodiment, the remote controller 10 is further provided with a second key and a wireless transmission module, and after the step S200, the method further includes:
s221, detecting whether the second key is in a pressed state;
s222, when it is detected that the second key is in a pressed state, triggering the wireless sending module to send a wireless signal to the display device 20;
s223, according to the wireless signal, instructing the display device 20 to execute the step of "displaying corresponding character information according to the laser signal".
In the technical scheme of the invention, when the second key is pressed, the remote control chip scans that the second key is pressed, and the writing state is finished, at this time, the remote control chip transmits a wireless signal to the display device 20 by triggering the wireless transmission module, and the display device 20 acquires information that the writing action is finished after receiving the wireless signal, so that the main control system of the display device 20 displays corresponding character information on the display screen 21 of the display device 20 after being processed by the signal acquisition module 22 and the character recognition module 23 according to the laser signal acquired at the stage from the time point of the first key pressing to the time point of the second key pressing. Of course, the display device 20 may acquire the information that the writing action is completed, and may also be implemented in other manners, for example, the writing action may be determined by detecting the time length of the writing pause, and when the time length of the writing pause of the user through the remote controller 10 reaches a preset value, the display device 20 may automatically determine that the writing action is completed. However, it is easy to understand that, compared with determining whether the writing action is completed through the time duration of the pause, the information of completing the writing action is sent to the display device 20 by pressing the second key, the recognition is faster and more accurate, the recognition speed can be increased, the probability of misjudgment can be reduced, and the use experience of the user can be improved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (19)
1. A remote controller is characterized in that a first key and a laser transmitter are arranged on the remote controller, the remote controller comprises a remote control chip, and the first key and the laser transmitter are both connected with the remote control chip; the remote control chip is used for detecting the pressing states of the first key and the second key so as to trigger the laser transmitter to transmit laser signals.
2. The remote controller according to claim 1, wherein a second key is further provided on the remote controller, the remote controller further comprises a wireless transmission module, and the second key and the wireless transmission module are both connected with the remote control chip; the remote control chip is also used for detecting the pressing state of the second key so as to trigger the wireless transmitting module to transmit a wireless signal.
3. The remote controller according to claim 1 or 2, wherein the remote controller is provided with a laser driving circuit, and the first key, the laser emitter and the remote control chip are all connected with the laser driving circuit.
4. The remote controller according to claim 3, wherein the remote controller is further provided with a power supply circuit, and the power supply circuit is connected to the laser driving circuit.
5. The remote controller of claim 4, wherein the laser driver circuit comprises a switch, a transistor Q1, a transistor Q2, a capacitor, and a trimming resistor, wherein a positive terminal of the laser transmitter is connected to one terminal of the switch, another terminal of the switch is connected to a collector of the transistor Q2 and one terminal of the capacitor, a base of the transistor Q2 is connected to a collector of the transistor Q1, another terminal of the capacitor is connected to a base of the transistor Q1 and one terminal of the trimming resistor, another terminal of the trimming resistor and an emitter of the transistor Q2 are connected to a positive terminal of the power circuit, an emitter of the transistor Q1 and a negative terminal of the laser transmitter are connected to a negative terminal of the power circuit, and wherein the switch is triggered by the first key press.
6. The display equipment is characterized by comprising a display screen and a master control system, wherein the display screen is connected with the master control system, and the master control system comprises a signal acquisition module and a character recognition module; the signal acquisition module is used for receiving laser signals, converting the laser signals into corresponding coordinate information according to the movement track of the laser signals, and transmitting the coordinate information to the character recognition module; and the character recognition module is used for recognizing corresponding character information according to the coordinate information and transmitting the character information to the display screen.
7. The display device of claim 6, wherein the signal acquisition module comprises a main control chip, the display screen is a four-wire resistor screen, and the detection resistor of the four-wire resistor screen is a photo resistor, an X-axis positive direction lead of the display screen is connected with a GPIO1 pin of the main control chip, a Y-axis positive direction lead of the display screen is connected with a GPIO2 pin of the main control chip, an X-axis negative direction lead of the display screen is connected with a GPIO3 pin of the main control chip, a Y-axis negative direction lead of the display screen is connected with a GPIO4 pin of the main control chip, the X-axis negative direction lead of the display screen is coupled to a first analog-to-digital converter in the main control chip, and the Y-axis negative direction lead of the display screen is coupled to a second analog-to-digital converter in the main control chip.
8. The display remote control system of claim 7 wherein the positive X-axis lead of the display screen is further coupled to a power supply pin VDD of the main control chip through a resistor R1.
9. A display remote control system, comprising:
the remote controller is provided with a first key and a laser transmitter and comprises a remote control chip, and the first key and the laser transmitter are both connected with the remote control chip; the remote control chip is used for detecting the pressing state of the first key so as to trigger the laser transmitter to transmit a laser signal;
the display device comprises a display screen and a main control system, the display screen is connected with the main control system, and the main control system comprises a signal acquisition module and a character recognition module; the signal acquisition module is used for receiving the laser signal, converting the laser signal into corresponding coordinate information according to the movement track of the laser signal and transmitting the coordinate information to the character recognition module; and the character recognition module is used for recognizing corresponding character information according to the coordinate information and transmitting the character information to the display screen.
10. The display remote control system of claim 9, wherein the signal acquisition module comprises:
the main control chip, the display screen is four-wire resistance screen, just the detection resistance of four-wire resistance screen is photo resistance, the X axle positive direction lead wire of display screen with the GPIO1 pin of main control chip is connected, the Y axle positive direction lead wire of display screen with the GPIO2 pin of main control chip is connected, the X axle negative direction lead wire of display screen with the GPIO3 pin of main control chip is connected, the Y axle negative direction lead wire of display screen with the GPIO4 pin of main control chip is connected, the X axle negative direction lead wire coupling of display screen extremely first adc in the main control chip, the Y axle negative direction lead wire coupling of display screen extremely second adc in the main control chip.
11. The display remote control system of claim 10 wherein the positive X-axis lead of the display screen is further coupled to a power supply pin VDD of the main control chip through a resistor R1.
12. The display remote control system according to any one of claims 9 to 11, wherein a second key is further provided on the remote controller, the remote controller further comprises a wireless transmission module, and the second key and the wireless transmission module are both connected to the remote control chip; the remote control chip is also used for detecting the pressing state of the second key so as to trigger the wireless transmitting module to transmit a wireless signal.
13. The display remote control system of claim 12, wherein the remote controller is provided with a laser driving circuit, and the first key, the laser emitter and the remote control chip are connected to the laser driving circuit.
14. The display remote control system of claim 13, wherein a power supply circuit is further provided in the remote controller, the power supply circuit being connected to the laser driving circuit.
15. The display remote control system of claim 14, wherein the laser driver circuit comprises a switch, a transistor Q1, a transistor Q2, a capacitor, and a trimming resistor, wherein a positive terminal of the laser emitter is connected to one terminal of the switch, another terminal of the switch is connected to a collector of the transistor Q2 and one terminal of the capacitor, a base of the transistor Q2 is connected to a collector of the transistor Q1, another terminal of the capacitor is connected to a base of the transistor Q1 and one terminal of the trimming resistor, another terminal of the trimming resistor and an emitter of the transistor Q2 are connected to a positive terminal of the power circuit, an emitter of the transistor Q1 and a negative terminal of the laser emitter are connected to a negative terminal of the power circuit, and wherein the switch is triggered by the first key press.
16. A remote control method of a display remote control system, the display remote control system including a remote controller and a display device, the remote control method comprising the steps of:
receiving a laser signal transmitted by the remote controller, and converting the laser signal into corresponding coordinate information according to the movement track of the laser signal;
identifying the coordinate information as corresponding character information;
and displaying the character information.
17. The remote control method as set forth in claim 16, wherein the step of "recognizing as corresponding character information according to the coordinate information" includes:
establishing a characteristic set of each Chinese character stroke type, an absolute position and an intersection relation as a standard;
recording the stroke writing characteristics of the handwritten Chinese characters, and establishing a characteristic set of the handwritten Chinese characters;
comparing the standard Chinese character feature set with the handwritten Chinese character feature set, and establishing a one-to-one corresponding relation between standard Chinese character strokes and handwritten Chinese character strokes;
and carrying out comprehensive similarity judgment on the strokes which are not established through the corresponding relation in the steps to realize the establishment of the corresponding relation between all strokes in the handwritten Chinese characters and the standard Chinese characters.
18. A remote control method of a display remote control system is characterized in that the display remote control system comprises a remote controller and a display device, the remote controller is provided with a first key and a laser transmitter, and the remote control method comprises the following steps:
detecting whether the first key is in a pressed state;
when the first key is detected to be in a pressed state, triggering the laser transmitter to transmit the laser signal to the display equipment;
and driving the display equipment to display corresponding character information according to the laser signal.
19. The remote control method as claimed in claim 18, wherein the remote controller is further provided with a second key and a wireless transmission module, and the step of driving the display device to display corresponding character information according to the laser signal comprises:
detecting whether the second key is in a pressed state;
when the second key is detected to be in a pressed state, triggering the wireless sending module to send a wireless signal to the display equipment;
and according to the wireless signal, commanding the display equipment to execute the step of displaying corresponding character information according to the laser signal.
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