CN112990184A - Scanning pen device and method capable of adjusting size of shot font - Google Patents
Scanning pen device and method capable of adjusting size of shot font Download PDFInfo
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- CN112990184A CN112990184A CN202110211485.9A CN202110211485A CN112990184A CN 112990184 A CN112990184 A CN 112990184A CN 202110211485 A CN202110211485 A CN 202110211485A CN 112990184 A CN112990184 A CN 112990184A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/10—Image acquisition
- G06V10/12—Details of acquisition arrangements; Constructional details thereof
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Abstract
The invention discloses a scanning pen device and a method with adjustable shooting font size, wherein the scanning pen device comprises a scanning pen main body, a camera is arranged in the middle of the lower end of the scanning pen main body, and an MCU is arranged in the scanning pen main body; the scanning pen main body also comprises a font size adjusting instruction input module and a current output control module, wherein the font size adjusting instruction input module and the current output control module are both connected to the MCU; the two sides of the lower end of the scanning pen main body are both provided with a baffle, the baffles on the two sides are respectively connected to the two sides of the lower end of the scanning pen main body through rotating structures on the two sides, and can rotate around the rotating structures in the direction close to and far away from the camera; the inside electro-magnet that all is equipped with of baffle of both sides, electro-magnet electric connection in current output control module. The invention can adjust the shooting range of the camera of the scanning pen, thereby adapting to the scanning requirements of reading materials with different font sizes, not only avoiding the problem of scanning multiple lines of fonts at one time, but also ensuring that complete characters can be obtained by scanning.
Description
Technical Field
The invention relates to the technical field of scanning pens, in particular to a scanning pen device and a method capable of adjusting the size of a shot font.
Background
The wand is a hand-held electronic device, and the user can realize the scanning of characters or image through holding the wand and type, through built-in Optical Character Recognition (OCR) module, can discern, operation such as storage and editing to the characters, by wide application in scenes such as student's study, tourism translation.
The existing scanning pen can trigger the pen point of a scanning event, the width and the height of the pen point are fixed, the size of scanned textbook characters is limited to a certain extent, if the pen point is too large, when reading materials with small characters are scanned, a plurality of lines of characters can be obtained through one-time scanning, and the scanning pen can only recognize one line. If the pen point is too small, the characters can not be scanned completely when the reading materials with larger characters are scanned, and the recognition is failed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a scanning pen device and a method capable of adjusting the size of a shot font
In order to achieve the purpose, the invention adopts the following technical scheme:
a scanning pen device with adjustable shot font size comprises a scanning pen main body, wherein a camera is arranged in the middle of the lower end of the scanning pen main body, and an MCU is arranged in the scanning pen main body; the scanning pen main body also comprises a font size adjusting instruction input module and a current output control module, and the font size adjusting instruction input module and the current output control module are both connected to the MCU; the two sides of the lower end of the scanning pen main body are both provided with a baffle, the baffles on the two sides are respectively connected to the two sides of the lower end of the scanning pen main body through rotating structures on the two sides, and can rotate around the rotating structures in the direction close to and far away from the camera; electromagnets are arranged inside the baffles on the two sides, and the electromagnets are electrically connected to the current output control module; the MCU is used for recording the nearest position of the baffle, and controlling the current output control module to output current in the same direction to the electromagnets at the two sides if the character shooting needs to be increased after receiving the character size adjusting instruction, wherein the current enables the electromagnets at the two sides to generate enough repulsive force to drive the baffles at the two sides to rotate from the current position to the direction far away from the camera; if the characters to be shot need to be reduced, the current output control module is controlled to output currents in opposite directions to the electromagnets on the two sides, and the electromagnets on the two sides generate enough suction to drive the baffles on the two sides to rotate from the current positions to the direction close to the camera at the same time.
Furthermore, a plurality of font size gears are preset in the MCU, and different font size gears correspond to different included angles between the baffle and the lower end of the scanning pen main body; the MCU records the nearest position of the baffle by recording the font size gear which is adjusted for the last time, and the MCU controls the current output control module to output the current to the electromagnets at two sides when the font size is adjusted for a single time so that the baffles at two sides can rotate to the position of the previous or next font size gear from the current font size gear.
Furthermore, rotary structure mounting bulges are respectively arranged on two sides of the lower end of the scanning pen main body, and rotary structures are respectively arranged on the rotary structure mounting bulges on the two sides; the rotary structure comprises a large gear, a small gear and a rotary shaft, the rotary structure mounting protrusion comprises a front wall and a back wall, at least one of the front wall and the back wall is rotatably provided with the large gear and the small gear, and the large gear and the small gear are meshed with each other; the rotating shaft is coaxially and fixedly connected with the upper end of the baffle, and the pinion is coaxially and fixedly connected with one end of the rotating shaft.
Furthermore, when only one of the front wall and the back wall is provided with the big gear and the small gear, the other one is provided with a shaft hole, one end of the rotating shaft is coaxially and fixedly connected with the small gear, and the other end of the rotating shaft penetrates through the shaft hole and can rotate in the shaft hole.
Furthermore, when the front wall and the back wall are both provided with the big gear and the small gear, two ends of the rotating shaft are respectively and fixedly connected with the close small gear in a coaxial way.
Furthermore, the electromagnet consists of an iron core and a coil, the coil is wound on the iron core, and the coil is electrically connected to the current output control module.
The invention also provides a method for utilizing the scanning pen device with the adjustable shooting font size, which comprises the following specific processes:
current size parameters required by the fact that the two side baffles can rotate towards the direction far away from the camera at different positions at the same time and current size parameters required by the fact that the two side baffles can rotate towards the direction close to the camera at different positions at the same time are preset in the MCU;
the user judges whether to need to increase or reduce the size of the shooting font according to the font size of the reading to be scanned, and if so, the command input module for adjusting the size of the font inputs a command for increasing or reducing the size of the shooting font to the MCU through the font:
if the shooting font needs to be enlarged, after the MCU receives an instruction, according to the position of the baffle which is recorded last time, current size parameters which are required by the baffle at the two sides and can rotate towards the direction far away from the camera at the same time are set according to the position of the baffle at the two sides, the current output control module is controlled to output currents in the same direction to the electromagnets in the baffles at the two sides, the electromagnets at the two sides generate repulsive force after receiving the currents, and the repulsive force drives the baffles at the two sides to rotate towards the direction far away from the camera at the same time for setting the angle, so that the shooting range of the camera can be enlarged, and characters with larger font can be;
if the shooting font needs to be reduced, after the MCU receives an instruction, according to the position of the baffle which is recorded last time, the current size parameters which are required by the angle setting can be rotated to the direction close to the camera at the same time according to the preset baffle on the two sides, the current output control module is controlled to output the current in the opposite directions to the electromagnets in the baffles on the two sides, the electromagnets on the two sides generate suction force after receiving the current, the baffles on the two sides are driven by the suction force to rotate to the direction close to the camera at the same time, so that the shooting range of the camera is reduced, and characters with smaller fonts are scanned.
The invention has the beneficial effects that:
1. the invention can adjust the shooting range of the camera of the scanning pen, and increase or reduce the size of the shot font, thereby adapting to the scanning requirements of the reading materials with different font sizes, not only avoiding the problem of scanning multiple lines of fonts at one time, but also ensuring that the scanning obtains complete characters, thereby ensuring the successful recognition.
2. The invention realizes the automatic rotation of the baffle plate by utilizing the principle of the relation between the current and the magnetic force, has higher automation degree, and can realize the size adjustment of the shot fonts with different fineness degrees by setting the single rotation angle of the baffle plate.
Drawings
FIG. 1 is a schematic front view of an apparatus according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of electrical connection in embodiment 1 of the present invention;
FIG. 3 is a schematic view of a rotary structure arrangement in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of an electromagnet in embodiment 1 of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
Example 1
The embodiment provides a scanning pen device with adjustable shooting font size, as shown in fig. 1 and 2, comprising a scanning pen main body 1, wherein a camera 2 is arranged in the middle of the lower end of the scanning pen main body 1, and an MCU is arranged in the scanning pen main body; the scanning pen main body 1 further comprises a font size adjusting instruction input module and a current output control module, wherein the font size adjusting instruction input module and the current output control module are both connected to the MCU; the two sides of the lower end of the scanning pen main body are both provided with baffles 3, the baffles 3 on the two sides are respectively connected with the two sides of the lower end of the scanning pen main body 1 through rotating structures on the two sides and can rotate around the rotating structures to the direction close to and far away from the camera 2; electromagnets are arranged inside the baffle plates 3 on the two sides, and the electromagnets are electrically connected to the current output control module; the MCU is used for recording the nearest position of the baffle 3 and controlling the current output control module to output current in the same direction to the electromagnets at the two sides if the character shooting needs to be increased after receiving the character size adjusting instruction, and the current enables the electromagnets at the two sides to generate enough repulsive force to drive the baffles 3 at the two sides to rotate from the current position to the direction far away from the camera 2; if the characters to be shot need to be reduced, the current output control module is controlled to output currents in opposite directions to the electromagnets on the two sides, and the electromagnets on the two sides generate enough suction to drive the baffles 3 on the two sides to rotate from the current position to the direction close to the camera 2.
As shown in fig. 1, the main body of the scanning pen may further be provided with a display screen 100 used as an operation interface and function keys such as a home key 101.
Further, in this embodiment, a plurality of font size gears are preset in the MCU, and different font size gears correspond to different included angles between the baffle 3 and the lower end of the stylus body 1; the MCU records the nearest position of the baffle by recording the font size gear which is adjusted for the last time, and the MCU controls the current output control module to output the current to the electromagnets at two sides when the font size is adjusted for a single time so that the baffles at two sides can rotate to the position of the previous or next font size gear.
Further, in the present embodiment, the two sides of the lower end of the wand body 1 are respectively provided with a rotating structure mounting protrusion 4, and the rotating structure mounting protrusions 4 on the two sides are respectively provided with a rotating structure; the rotating structure comprises a gearwheel 5, a pinion 6 and a rotating shaft 7, the rotating structure mounting protrusion 4 comprises a front wall and a back wall, at least one of the front wall and the back wall is rotatably provided with the gearwheel 5 and the pinion 6, and the gearwheel 5 and the pinion 6 are mutually meshed; the rotating shaft 7 is coaxially and fixedly connected with the upper end of the baffle 3, and the pinion 6 is coaxially and fixedly connected with one end of the rotating shaft 7. The use of the gear train configuration allows the flapper 3 to rotate freely and stay at the current angle.
Furthermore, each tooth socket of the pinion can be used as the position of a font-size gear, and every two tooth sockets can be used as the position of a font-size gear (or other numbers can be used, which is determined according to the number of the tooth sockets of the pinion).
Fig. 3 shows an embodiment with a gearwheel and a pinion on the side of the front wall facing inwards.
Specifically, when only one of the front wall and the back wall is provided with the large gear and the small gear, the other wall is provided with a shaft hole, one end of the rotating shaft is coaxially and fixedly connected with the small gear, and the other end of the rotating shaft penetrates through the shaft hole and can rotate in the shaft hole. When the front wall and the back wall are both provided with the big gear and the small gear, the two ends of the rotating shaft are respectively coaxially and fixedly connected with the close small gear.
Further, the font size adjustment instruction input module may be one or more of a voice input module, a key input module, an infrared shielding input module, and the like.
Further, in this embodiment, as shown in fig. 4, the electromagnet is composed of an iron core 8 and a coil 9, the coil 9 is wound on the iron core 8, and the coil 9 is electrically connected to the current output control module.
It should be noted that the included angle range between the baffle and the lower end of the main body of the stylus can be set according to actual needs, preferably 30 ° to 120 °, and it is required to ensure that the baffles on both sides can rotate outwards by repulsion and inwards by suction within the set included angle range.
It should be noted that the angle of the interval between each font size gear (i.e. the angle of a single adjustment rotation) can be set according to the requirement of the fine degree of adjustment, such as 1 °, 5 °, etc.
Example 2
The present embodiment provides a method for using the scanning pen device with adjustable shooting font size described in embodiment 1, which includes the following specific processes:
current size parameters required by the fact that the two side baffles can rotate towards the direction far away from the camera at different positions at the same time and current size parameters required by the fact that the two side baffles can rotate towards the direction close to the camera at different positions at the same time are preset in the MCU;
the user judges whether to need to increase or reduce the size of the shooting font according to the font size of the reading to be scanned, and if so, the command input module for adjusting the size of the font inputs a command for increasing or reducing the size of the shooting font to the MCU through the font:
if the shooting font needs to be enlarged, after the MCU receives an instruction, according to the position of the baffle which is recorded last time, current size parameters which are required by the baffle at the two sides and can rotate towards the direction far away from the camera at the same time are set according to the position of the baffle at the two sides, the current output control module is controlled to output currents in the same direction to the electromagnets in the baffles at the two sides, the electromagnets at the two sides generate repulsive force after receiving the currents, and the repulsive force drives the baffles at the two sides to rotate towards the direction far away from the camera at the same time for setting the angle, so that the shooting range of the camera can be enlarged, and characters with larger font can be;
if the shooting font needs to be reduced, after the MCU receives an instruction, according to the position of the baffle which is recorded last time, the current size parameters which are required by the angle setting can be rotated to the direction close to the camera at the same time according to the preset baffle on the two sides, the current output control module is controlled to output the current in the opposite directions to the electromagnets in the baffles on the two sides, the electromagnets on the two sides generate suction force after receiving the current, the baffles on the two sides are driven by the suction force to rotate to the direction close to the camera at the same time, so that the shooting range of the camera is reduced, and characters with smaller fonts are scanned.
The user can increase or reduce the shooting font size by repeatedly inputting the instruction until the shooting font size meets the required position.
By the device and the method in the embodiment 1 and the embodiment 2, the shooting range of the camera of the scanning pen can be adjusted, and the size of the shot font can be increased or reduced, so that the scanning requirements of reading materials with different font sizes can be met, the problem that multiple lines of fonts are scanned at one time can be avoided, complete characters can be obtained by scanning, and the successful recognition can be guaranteed.
It should be noted that, it can be simultaneously to the required current size parameter of the direction rotation angle setting of keeping away from the camera to predetermine both sides baffle in the position of difference to and both sides baffle can be simultaneously to the required current size parameter of the direction rotation angle setting of being close to the camera in the position of difference, can obtain through the experiment.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (7)
1. A scanning pen device with adjustable shooting font size comprises a scanning pen main body (1), wherein a camera (2) is arranged in the middle of the lower end of the scanning pen main body (1), and an MCU is arranged in the scanning pen main body; the scanning pen is characterized in that the scanning pen main body (1) further comprises a font size adjusting instruction input module and a current output control module, wherein the font size adjusting instruction input module and the current output control module are both connected to the MCU; the two sides of the lower end of the scanning pen main body are respectively provided with a baffle (3), the baffles (3) on the two sides are respectively connected to the two sides of the lower end of the scanning pen main body (1) through rotating structures on the two sides and can rotate around the rotating structures in the direction close to and far away from the camera (2); electromagnets are arranged inside the baffle plates (3) on the two sides, and the electromagnets are electrically connected to the current output control module; the MCU is used for recording the nearest position of the baffle (3) and controlling the current output control module to output current in the same direction to the electromagnets at the two sides if the character shooting needs to be increased after receiving the character size adjusting instruction, and the current enables the electromagnets at the two sides to generate sufficient repulsion force to drive the baffles (3) at the two sides to rotate from the current position to the direction far away from the camera (2) at the same time; if the shooting font needs to be reduced, the current output control module is controlled to output currents in opposite directions to the electromagnets on the two sides, and the electromagnets on the two sides generate enough suction force to drive the baffles (3) on the two sides to rotate from the current position to the direction close to the camera (2) at the same time.
2. The scanning pen device with the adjustable shooting font size according to claim 1, wherein a plurality of font size gears are preset in the MCU, and different font size gears correspond to different included angles between the baffle (3) and the lower end of the scanning pen main body (1); the MCU records the nearest position of the baffle by recording the font size gear which is adjusted for the last time, and the MCU controls the current output control module to output the current to the electromagnets at two sides when the font size is adjusted for a single time so that the baffles at two sides can rotate to the position of the previous or next font size gear from the current font size gear.
3. The scanning pen device with the adjustable shooting font size according to claim 1, characterized in that the two sides of the lower end of the scanning pen main body (1) are respectively provided with a rotating structure mounting protrusion (4), and the rotating structure mounting protrusions (4) at the two sides are respectively provided with a rotating structure; the rotating structure comprises a large gear (5), a small gear (6) and a rotating shaft (7), the rotating structure mounting protrusion (4) comprises a front wall and a back wall, at least one of the front wall and the back wall is rotatably provided with the large gear (5) and the small gear (6), and the large gear (5) and the small gear (6) are meshed with each other; the rotating shaft (7) is coaxially and fixedly connected with the upper end of the baffle (3), and the pinion (6) is coaxially and fixedly connected with one end of the rotating shaft (7).
4. A scanning pen apparatus for photographing a font size adjustable as claimed in claim 3, wherein when only one of the front and rear walls is installed with the large and small gears, the other is provided with a shaft hole, one end of the rotation shaft is fixedly connected to the small gear coaxially, and the other end thereof passes through the shaft hole and is rotatable therein.
5. A scanning pen device capable of adjusting the size of a photographed font according to claim 3, wherein when a large gear and a small gear are provided on both the front wall and the rear wall, both ends of the rotation shaft are coaxially and fixedly connected to the respective small gears adjacent thereto.
6. The scanning pen device with the adjustable shooting font size according to claim 1, characterized in that the electromagnet is composed of an iron core (8) and a coil (9), the coil (9) is wound on the iron core (8), and the coil (9) is electrically connected to the current output control module.
7. A method for using the scanning pen device with adjustable shooting font size of any one of claims 1 to 6 is characterized in that the specific process is as follows:
current size parameters required by the fact that the two side baffles can rotate towards the direction far away from the camera at different positions at the same time and current size parameters required by the fact that the two side baffles can rotate towards the direction close to the camera at different positions at the same time are preset in the MCU;
the user judges whether to need to increase or reduce the size of the shooting font according to the font size of the reading to be scanned, and if so, the command input module for adjusting the size of the font inputs a command for increasing or reducing the size of the shooting font to the MCU through the font:
if the shooting font needs to be enlarged, after the MCU receives an instruction, according to the position of the baffle which is recorded last time, current size parameters which are required by the baffle at the two sides and can rotate towards the direction far away from the camera at the same time are set according to the position of the baffle at the two sides, the current output control module is controlled to output currents in the same direction to the electromagnets in the baffles at the two sides, the electromagnets at the two sides generate repulsive force after receiving the currents, and the repulsive force drives the baffles at the two sides to rotate towards the direction far away from the camera at the same time for setting the angle, so that the shooting range of the camera can be enlarged, and characters with larger font can be;
if the shooting font needs to be reduced, after the MCU receives an instruction, according to the position of the baffle which is recorded last time, the current size parameters which are required by the angle setting can be rotated to the direction close to the camera at the same time according to the preset baffle on the two sides, the current output control module is controlled to output the current in the opposite directions to the electromagnets in the baffles on the two sides, the electromagnets on the two sides generate suction force after receiving the current, the baffles on the two sides are driven by the suction force to rotate to the direction close to the camera at the same time, so that the shooting range of the camera is reduced, and characters with smaller fonts are scanned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110211485.9A CN112990184A (en) | 2021-02-25 | 2021-02-25 | Scanning pen device and method capable of adjusting size of shot font |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110211485.9A CN112990184A (en) | 2021-02-25 | 2021-02-25 | Scanning pen device and method capable of adjusting size of shot font |
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| CN112990184A true CN112990184A (en) | 2021-06-18 |
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| CN202110211485.9A Pending CN112990184A (en) | 2021-02-25 | 2021-02-25 | Scanning pen device and method capable of adjusting size of shot font |
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| US20020170968A1 (en) * | 1990-09-11 | 2002-11-21 | Metrologic Instruments, Inc. | Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during hands-on and hands-free modes of operation |
| JPH11167080A (en) * | 1997-12-04 | 1999-06-22 | Ricoh Co Ltd | Laser scanning optical device |
| KR20060089816A (en) * | 2005-02-04 | 2006-08-09 | 엘지전자 주식회사 | Camera automatic roatation device of mobile phone |
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