CN110971946A - Television handwriting pen and control method thereof - Google Patents
Television handwriting pen and control method thereof Download PDFInfo
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- CN110971946A CN110971946A CN201811162203.5A CN201811162203A CN110971946A CN 110971946 A CN110971946 A CN 110971946A CN 201811162203 A CN201811162203 A CN 201811162203A CN 110971946 A CN110971946 A CN 110971946A
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- laser
- television
- receiving device
- pen body
- movement information
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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
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a television stylus and a control method thereof, wherein the television stylus comprises a pen body, a laser transmitter, a laser receiving device, a first reflecting plate, a second reflecting plate and a communication module, wherein the laser transmitter, the laser receiving device, the first reflecting plate, the second reflecting plate and the communication module are arranged in the pen body, the laser receiving device is used for receiving laser beams which sequentially pass through the first reflecting plate, the surface of an object and the second reflecting plate to reflect, acquiring the movement information of the pen body according to the movement of abnormal points reflected in the laser beams, and transmitting the acquired movement information of the pen body to a television end through the communication module so that the television end matches the movement information of the pen body and converts the movement information into characters to complete data input. The television handwriting pen provided by the invention has a simple structure, can realize that a television user can accurately and quickly input various character information to a television end, is suitable for various scenes, and brings great convenience to the television user.
Description
Technical Field
The invention relates to the field of electronic pens, in particular to a television handwriting pen and a control method thereof.
Background
The television is used as a large screen display of a family, and the character input of the television is always a big pain point of a user. The remote controller of the television can not easily input languages of various countries like a computer keyboard, and even more complicated Wifi passwords are difficult to input continuously.
In the speech input in the market, the accurate recognition degree is poor, and some scenes are not suitable. For example, at night when a child sleeps, voice input may affect the child to rest, but input through a remote controller is very troublesome, and there is a problem that writing is incorrect.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a tv stylus and a control method thereof, which aims to solve the problem that the data input of the existing tv is difficult.
The technical scheme of the invention is as follows:
a television handwriting pen comprises a pen body, a laser transmitter, a laser receiving device, a first reflecting plate, a second reflecting plate and a communication module, wherein the laser transmitter, the laser receiving device, the first reflecting plate, the second reflecting plate and the communication module are arranged in the pen body, the laser emitter is used for emitting laser beams, the first reflecting plate is used for reflecting the laser beams emitted by the laser emitter to the surface of an object, the second reflecting plate is used for reflecting the laser beam reflected by the surface of the object to the laser receiving device, the laser receiving device is used for receiving the laser beam reflected by the second reflecting plate and acquiring the movement information of the pen body according to the movement of the abnormal point reflected in the laser beam, the laser receiving device is also used for sending the acquired pen body movement information to a communication module, and the communication module is used for sending the received pen body movement information to a television end so that the television end can be matched with the pen body movement information and can convert the pen body movement information into characters to complete data input; the laser receiving device is electrically connected with the communication module.
The television stylus pen, wherein the movement information of the pen body comprises a movement direction and a movement speed.
The television handwriting pen is characterized in that the bottom end of the pen body is also provided with an elastic device for controlling the laser receiving device to receive the laser beams.
The television stylus pen is characterized in that the elastic device comprises a spring body and a groove support which is used for bearing the spring body and can move up and down, and the lower part of the groove support is fixedly connected with the first reflecting plate and the second reflecting plate respectively.
A control method of a television stylus pen comprises the following steps:
establishing communication connection between the television stylus and a television terminal in advance;
starting a laser transmitter, wherein a laser beam emitted by the laser transmitter sequentially passes through a first reflecting plate, the surface of an object and a second reflecting plate until reaching a laser receiving device;
the laser receiving device compares the total intensity of the received laser beams with a preset light intensity threshold, and if the total intensity of the laser beams received by the laser receiving device is greater than or equal to the preset light intensity threshold, the input is judged to start;
the laser receiving device judges the reflection abnormal point of the surface of the object according to the light intensity difference of each ray in the received laser beam, and obtains the movement information of the pen body according to the movement of the reflection abnormal point;
the laser receiving device sends the acquired movement information of the pen body to the television end through the communication module;
the television end converts the received movement information of the pen body into a screen line segment with a direction, and the screen line segment with the direction is identified as corresponding text content through a preset identification module.
The method for controlling the television stylus pen, wherein the laser receiving device determines a reflection abnormal point on the surface of the object according to the light intensity difference of each ray in the received laser beam, and obtains the movement information of the pen body according to the movement of the reflection abnormal point, specifically comprises the following steps:
the laser receiving device compares the light intensity of each light ray in the received laser beam in sequence;
and taking the point of the object surface corresponding to the light ray with the strongest or weakest light intensity in the laser beam as a reflection abnormal point, and acquiring the movement information of the pen body according to the movement of the reflection abnormal point.
The control method of the television stylus pen comprises the following steps that the laser receiving device compares the total intensity of the received laser beams with a preset light intensity threshold value, and then the method further comprises the following steps:
and if the total intensity of the laser beam received by the laser receiving device is smaller than a preset light intensity threshold value, judging that the input does not start or the current input is finished.
The control method of the television stylus pen further comprises the following steps:
when the elastic device contacts the surface of the object, the input of the television handwriting pen is judged to be started, and the total intensity of the laser beam received by the laser receiving device is in direct proportion to the compressed intensity of the elastic device;
when the elastic device leaves the surface of the object, the current input of the television stylus is judged to be finished.
Has the advantages that: the television handwriting pen provided by the invention has a simple structure, can realize that a television user can accurately and quickly input various character information to a television end, is suitable for various scenes, and brings great convenience to the television user.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a tv stylus according to the present invention.
FIG. 2 is a schematic diagram of light reflection from an anomalous reflection point on the surface of an object according to the present invention.
Fig. 3 is a schematic diagram illustrating a trace of the light reflected by the reflection abnormal point in fig. 2 moving to the left.
Fig. 4 is a schematic diagram of the trace of the light reflected by the reflection anomaly point in fig. 3 moving to the left.
FIG. 5 is a schematic view of the elastic device of the present invention just contacting the surface of an object.
Fig. 6 is a schematic view of the elastic device of the present invention in a slightly compressed state.
Fig. 7 is a schematic structural view of the elastic device of the present invention in a fully compressed state.
Detailed Description
The invention provides a television stylus and a control method thereof, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a tv stylus according to a preferred embodiment of the present invention, as shown in the drawing, the tv stylus includes a pen body 10, a laser emitter 20 disposed inside the pen body, a laser receiving device 30, a first reflection plate 40, a second reflection plate 50, and a communication module (not shown), the laser emitter 20 is configured to emit a laser beam, the first reflection plate 40 is configured to reflect the laser beam emitted by the laser emitter 20 to an object surface 60, the second reflection plate 50 is configured to reflect the laser beam reflected by the object surface to the laser receiving device 30, the laser receiving device 30 is configured to receive the laser beam reflected by the second reflection plate 50 and obtain movement information of the pen body 10 according to movement of an abnormal point reflected by the laser beam, the laser receiving device 30 is further configured to send the obtained movement information of the pen body 10 to the communication module, the communication module is used for sending the received pen body movement information to a television end (not shown), and the television end is matched with the pen body movement information and converts the pen body movement information into characters to complete data input; the laser receiver 30 is electrically connected to the communication module.
The television handwriting pen in the embodiment has a simple structure and can realize that a television user can input various character information to a television terminal quickly and accurately; the television handwriting pen is suitable for various scenes, and brings great convenience to television users.
When the television handwriting pen in the embodiment is used for data input of a television end, the television handwriting pen needs to be in communication connection with the television end, a communication module is arranged in the television handwriting pen, the communication module is preferably a Wifi module or a bluetooth module, and the television handwriting pen can be in communication connection with the television end through the communication module.
Furthermore, when a user picks up the television stylus to prepare for inputting data, the laser transmitter is started, and laser beams emitted by the laser transmitter sequentially pass through the first reflecting plate, the surface of the object and the second reflecting plate and finally reach the laser receiving device. The laser receiving device compares the total intensity of the received laser beams with a preset light intensity threshold value, and if the total intensity of the laser beams received by the laser receiving device is greater than or equal to the preset light intensity threshold value, the input is judged to be started; and if the total intensity of the laser beam received by the laser receiving device is smaller than a preset light intensity threshold value, judging that the input does not start or the current input is finished.
As shown in fig. 1, the laser transmitter is configured to emit a plurality of laser beams (with a circular cross section), and the laser beams are reflected by a first reflective plate to the surface of the object, reflected by the surface of the object, and reflected by a second reflective plate to the laser receiver. When the television stylus moves, the laser receiving device captures the moving direction of the surface reflection difference point due to the difference of the reflection intensity of the object surface. For example, when the pen is slid to the left, the laser receiver detects that the surface reflection singular point also moves to the left.
Specifically, the laser receiving device determines a reflection abnormal point on the surface of the object according to the difference in light intensity of each light ray in the received laser beam, and obtains the movement information of the pen body according to the movement of the reflection abnormal point. Specifically, the laser receiving device compares the light intensity of each ray in the received laser beam in sequence; and taking the point of the object surface corresponding to the light ray with the strongest or weakest light intensity in the laser beam as a reflection abnormal point, and acquiring the movement information of the pen body according to the movement of the reflection abnormal point.
Preferably, the reflection abnormal point refers to a point having a difference from ambient light reflection, and assuming that the average light reflection rate of the table top is 40% and the light reflection rate of some points is only less than 20% or more than 60%, the point can be regarded as the reflection abnormal point, and the reflection abnormal point is mainly used for positioning the travel track of the pen body. As shown in fig. 2-4, a black point a in the drawing is a reflection abnormal point, a dotted line is a light ray reflected by the reflection abnormal point, and when the pen body moves to the right, a weaker light ray received by the laser receiving device (i.e., a light ray reflected by the reflection abnormal point) moves to the left; that is, when the weak light received by the laser receiving device moves to the left, it is determined that the pen body moves to the right. The laser beam has a plane section, so that the movement information of the pen body can be acquired through the movement of the light reflected by the reflection abnormal point received by the laser receiving device.
Preferably, the movement information of the pen body includes a movement direction and a movement speed.
Further, the laser receiving device sends the acquired movement information of the pen body to the television end through the communication module, the television end converts the received movement information of the pen body into a screen line segment with a direction, and the screen line segment with the direction is identified as corresponding text content through a preset identification module.
Specifically, the television converts the received combination of the pen body movement speed and time into a displacement vector S, and the value of the displacement vector S is subjected to geometric transformation according to the screen resolution and finally expressed as a directional line segment on the television screen, namely a directional screen line segment.
As an example, assuming that the resolution of the television screen is h × v, where h represents the number of horizontal pixels of the television screen, v represents the number of vertical pixels of the television screen, the horizontal total displacement length is a, the vertical total displacement length is b, d1= a/h, d2= b/v, and dm is the larger of d1 and d2, where d1 is the horizontal displacement length occupied by each horizontal pixel and d2 is the vertical displacement length occupied by each vertical pixel, the transition is to the on-screen segment S1= S × dm.
Preferably, an identification module is pre-configured on the television, and the identification module can identify the screen line segment with the direction as corresponding text content.
In a preferred embodiment, as shown in fig. 5, the bottom end of the pen body 10 is further provided with an elastic device 70 for controlling the amount of the laser beam received by the laser receiving device. The elastic device comprises a spring body 71 and a groove support 72 which is used for bearing the spring body 71 and can move up and down, and the lower part of the groove support 72 is fixedly connected with the first reflection plate 40 and the second reflection plate 50 respectively.
The input start and the input end of the television stylus can be judged by controlling the stretching state of the elastic device, specifically, when the elastic device contacts the surface of the object, the input start of the television stylus is judged, and when the elastic device leaves the surface of the object, the current input end of the television stylus is judged.
Specifically, the compressed intensity of the elastic device is proportional to the total intensity of the laser beam received by the laser receiving device, as shown in fig. 5, when the elastic device just contacts the surface of the object, the elastic device is slightly compressed, and then the light reflected to the laser receiving device by the object surface and the second reflecting plate in sequence is less, and at this time, the color and the transparency of the line fed back to the television end are the largest, and the width is the narrowest;
as shown in fig. 6, when the user starts writing or drawing with the tv stylus, the spring is gradually compressed, the elastic device drives the first reflection plate and the second reflection plate to move downward, the laser beam emitted by the laser emitter gradually increases through the light beam reflected by the first reflection plate, and the light beam reflected by the second reflection plate into the laser receiver gradually increases after being reflected by the surface of the object. At the moment, the transparency of the color of the brush fed back to the television end is gradually reduced, and the width of the brush is gradually increased.
As shown in fig. 7, when the elastic device is fully compressed, the light beam emitted from the laser emitter completely passes through the first reflection plate, the object surface and the second reflection plate in sequence to reach the laser receiver, and the laser receiver receives the most light beam. And the color transparency of the brush fed back to the television end is minimum, and the width of the brush is maximum. The transparency and the width of the television-end painting brush are linearly changed along with the number of the light beams received by the laser receiving device.
Specifically, in the embodiment, the elastic device is arranged at the bottom of the pen body, when a user writes, the elastic device is pressed down, when the user lifts the pen, the elastic device pops up or the elastic device does not pop up completely, it is determined that the writing of the user is not completed, and at the moment, the color of the line segment displayed at the television end is properly lightened and the width is properly narrowed, so that the continuous writing effect is achieved. And if the elastic device is completely popped up, considering that one-segment input is finished, waiting for the next-segment input, and considering that the user input is finished if the next segment is not input within the preset time.
In conclusion, the television handwriting pen provided by the invention has a simple structure, can realize that a television user can accurately and quickly input various character information to a television end, is suitable for various scenes, and brings great convenience to the television user. Furthermore, an elastic device is arranged in the television handwriting pen, so that the continuous writing effect can be realized.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. A television handwriting pen is characterized by comprising a pen body, a laser transmitter, a laser receiving device, a first reflecting plate, a second reflecting plate and a communication module, wherein the laser transmitter, the laser receiving device, the first reflecting plate, the second reflecting plate and the communication module are arranged in the pen body, the laser emitter is used for emitting laser beams, the first reflecting plate is used for reflecting the laser beams emitted by the laser emitter to the surface of an object, the second reflecting plate is used for reflecting the laser beam reflected by the surface of the object to the laser receiving device, the laser receiving device is used for receiving the laser beam reflected by the second reflecting plate and acquiring the movement information of the pen body according to the movement of the abnormal point reflected in the laser beam, the laser receiving device is also used for sending the acquired pen body movement information to a communication module, and the communication module is used for sending the received pen body movement information to a television end so that the television end can be matched with the pen body movement information and can convert the pen body movement information into characters to complete data input; the laser receiving device is electrically connected with the communication module.
2. The television stylus of claim 1, wherein the movement information of the pen body comprises a direction of movement and a speed of movement.
3. The television stylus according to claim 1, wherein the bottom end of the pen body is further provided with an elastic device for controlling the amount of laser beams received by the laser receiving device.
4. The TV stylus according to claim 3, wherein the resilient means comprises a spring body, a groove holder which is adapted to receive the spring body and is movable up and down, and the lower portion of the groove holder is fixedly connected to the first reflection plate and the second reflection plate, respectively.
5. A method for controlling a TV stylus as claimed in any one of claims 1 to 4, comprising the steps of:
establishing communication connection between the television stylus and a television terminal in advance;
starting a laser transmitter, wherein a laser beam emitted by the laser transmitter sequentially passes through a first reflecting plate, the surface of an object and a second reflecting plate until reaching a laser receiving device;
the laser receiving device compares the total intensity of the received laser beams with a preset light intensity threshold, and if the total intensity of the laser beams received by the laser receiving device is greater than or equal to the preset light intensity threshold, the input is judged to start;
the laser receiving device judges the reflection abnormal point of the surface of the object according to the light intensity difference of each ray in the received laser beam, and obtains the movement information of the pen body according to the movement of the reflection abnormal point;
the laser receiving device sends the acquired movement information of the pen body to the television end through the communication module;
the television end converts the received movement information of the pen body into a screen line segment with a direction, and the screen line segment with the direction is identified as corresponding text content through a preset identification module.
6. The method for controlling a tv stylus according to claim 5, wherein the step of the laser receiving device determining the reflection anomaly point on the surface of the object based on the light intensity difference of each ray in the received laser beam and obtaining the movement information of the pen body based on the movement of the reflection anomaly point includes:
the laser receiving device compares the light intensity of each light ray in the received laser beam in sequence;
and taking the point of the object surface corresponding to the light ray with the strongest or weakest light intensity in the laser beam as a reflection abnormal point, and acquiring the movement information of the pen body according to the movement of the reflection abnormal point.
7. The method for controlling a television stylus according to claim 5, wherein the step of comparing the total intensity of the received laser beam with a preset light intensity threshold by the laser receiving device further comprises:
and if the total intensity of the laser beam received by the laser receiving device is smaller than a preset light intensity threshold value, judging that the input does not start or the current input is finished.
8. The method for controlling a television stylus according to claim 5, further comprising the steps of:
when the elastic device contacts the surface of the object, the input of the television handwriting pen is judged to be started, and the total intensity of the laser beam received by the laser receiving device is in direct proportion to the compressed intensity of the elastic device;
when the elastic device leaves the surface of the object, the current input of the television stylus is judged to be finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162203.5A CN110971946B (en) | 2018-09-30 | 2018-09-30 | Television handwriting pen and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811162203.5A CN110971946B (en) | 2018-09-30 | 2018-09-30 | Television handwriting pen and control method thereof |
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| CN110971946A true CN110971946A (en) | 2020-04-07 |
| CN110971946B CN110971946B (en) | 2022-07-08 |
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| CN201811162203.5A Active CN110971946B (en) | 2018-09-30 | 2018-09-30 | Television handwriting pen and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN110971946B (en) | 2022-07-08 |
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