CN212256338U

CN212256338U - Scanning pen

Info

Publication number: CN212256338U
Application number: CN201920987095.9U
Authority: CN
Inventors: 王续东; 宋佳霖; 卫华; 王鹏; 吴迎晖; 周枫
Original assignee: Netease Youdao Information Technology Beijing Co Ltd
Current assignee: Netease Youdao Hangzhou Intelligent Technology Co ltd
Priority date: 2019-06-27
Filing date: 2019-06-27
Publication date: 2020-12-29
Anticipated expiration: 2029-06-27

Abstract

An embodiment of the utility model provides a scanning pen, this scanning pen includes: a housing; the scanning window is positioned at one end of the shell close to a scanning object; the trigger switch is positioned at the same end as the scanning window and is used for contacting a medium where the scanning object is positioned to generate a pressure signal; and the pressure sensor is connected with the trigger switch and used for detecting the pressure signal and converting the pressure signal into an electric signal for triggering the scanning pen to start scanning. The scanning pen adopts a switch triggering mode based on the pressure sensor, and the scanning window and the trigger switch are arranged on the same end face, so that the switching action and the scanning action are combined into one action, and the use convenience and the scanning efficiency of the scanning pen can be obviously improved.

Description

Scanning pen

Technical Field

The utility model discloses an embodiment relates to input device technical field, more specifically, the utility model discloses an embodiment relates to a wand.

Background

This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

The scanning pen is one of the common tools for character scanning and inputting when people read data or books, and contents of various media such as photos, drawings, books and the like can be transcribed into the scanning pen or transmitted into a computer through a scanning technology, so that operations such as storage, reading, editing, modifying and the like can be conveniently carried out.

The existing scanning pen generally comprises a shell and a camera module positioned in the shell, wherein the camera module identifies and scans a scanning object on scanning media such as photos, books and the like through a scanning window arranged on the shell so as to complete the input of the scanning object.

SUMMERY OF THE UTILITY MODEL

The position that the wand among the prior art generally was convenient for user's finger to press such as the top or the middle part of casing sets up the switch, and the user controls wand's open and closed state through this switch, and this kind of control mode has increased the switch trigger action except that the scanning action, has increased extra operation burden for the user, has the scanning convenience poor, scanning efficiency low grade problem.

For this reason, there is a strong need for an improved wand that allows the user to more conveniently and efficiently perform the scanning action.

In this context, embodiments of the present invention are intended to provide a scanning pen, which solves the technical problems of poor convenience and low scanning efficiency caused by the need of extra switch triggering operation in the prior art to some extent.

According to the utility model discloses embodiment provides a scanning pen, include:

a housing;

the scanning window is positioned at one end of the shell close to a scanning object;

the trigger switch is positioned at the same end as the scanning window and is used for contacting a medium where the scanning object is positioned to generate a pressure signal;

and the pressure sensor is connected with the trigger switch and used for detecting the pressure signal and converting the pressure signal into an electric signal for triggering the scanning pen to start scanning.

In some exemplary embodiments of the present invention, based on the above technical solutions, the pressure sensor is configured to have an initial pressure, and the pressure signal generated by the trigger switch is a pressure drop signal of the initial pressure.

In some exemplary embodiments of the present invention, based on the above technical solutions, the pressure sensor is a resistance strain gauge pressure sensor.

In some exemplary embodiments of the present invention, based on the above technical solutions, the trigger switch includes a first trigger and a second trigger that are oppositely disposed at two sides of the scanning window.

In some exemplary embodiments of the present invention, based on the above technical solutions, the wand further includes:

and the observation window is positioned in the scanning window and used for observing the scanning object.

In some exemplary embodiments of the present invention, based on the above technical solution, the observation window is provided with a transparent observation plate contacting with the housing.

In some exemplary embodiments of the present invention, based on the above technical solution, the transparent observation plate is provided with an indication mark for indicating a position of the scanning object.

In some exemplary embodiments of the present invention, based on the above technical solutions, the indication mark is an indication line parallel to a length direction of the wand.

In some exemplary embodiments of the present invention, based on the above technical solutions, the scanning window includes:

a bevel portion for stopping against a medium on which the scan object is placed;

a planar portion opposite to the inclined portion.

In some exemplary embodiments of the present invention, based on the above technical solutions, the inclined plane portion is a smooth transition curved surface.

the image acquisition unit is positioned in the shell and used for acquiring the image information of the scanning object through the scanning window;

and the illumination unit is positioned in the shell and used for providing an illumination light source to the scanning object through the scanning window.

In some exemplary embodiments of the present invention, based on the above technical solutions, the image capturing unit includes:

a lens for acquiring an optical image of the scan object;

and the image sensor is connected with the lens and used for converting the optical image acquired by the lens into a digital image.

In some exemplary embodiments of the present invention, based on the above technical solution, the imaging center line of the image capturing unit and the lighting center line of the lighting unit have a preset angle therebetween, and the preset angle is 5 to 10 degrees.

The exemplary embodiment of the present invention provides a switch triggering method based on a pressure sensor, which can make the trigger switch and the scanning object contact with the medium when the scanning window is aligned with the scanning object by setting the trigger switch and the scanning window at the same end, and then trigger the scanning pen to start scanning the scanning object. The switching action and the scanning action are combined into one action, a user does not need to apply extra switching operation, the scanning window is pressed to the medium where the scanning object is located, scanning is started, the scanning can be finished when the scanning window is far away from the medium, the action of the whole scanning process is continuous, the triggering is convenient, and the use convenience and the scanning efficiency of the scanning pen are obviously improved.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present invention are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

fig. 1 schematically shows a structural diagram of a wand according to an exemplary embodiment of the present invention.

Fig. 2 schematically shows a structural diagram of a wand according to another exemplary embodiment of the present invention.

Fig. 3 schematically illustrates a usage state diagram of a wand according to an exemplary embodiment of the present invention.

Fig. 4A schematically shows a structural diagram of a planar portion and an inclined portion of a scanning window in an exemplary embodiment of the present invention.

Fig. 4B schematically shows another structure diagram of the planar portion and the inclined surface portion of the scanning window according to an exemplary embodiment of the present invention.

Fig. 5 schematically shows a structural diagram of a wand according to still another exemplary embodiment of the present invention.

In the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

Detailed Description

The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It should be understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and thereby implement the present invention, and are not intended to limit the scope of the invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this document, it is to be understood that although relative terms, such as "upper" and "lower", may be used herein to describe one element of an icon relative to another, such terms are used herein for convenience only, e.g., in accordance with the orientation of the examples illustrated in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.

Moreover, any number of elements in the drawings are by way of example and not by way of limitation, and any nomenclature is used solely for differentiation and not by way of limitation.

The principles and spirit of the present invention are explained in detail below with reference to a number of representative embodiments of the invention.

Summary of the utility model

The inventor finds that when a user uses the scanning pen, the user generally needs to trigger a switch located above or in the middle of a shell of the scanning pen to enable the scanning pen to enter a scanning starting working state, then the scanning window of the scanning pen is aligned with a scanning object to scan the scanning object, and the scanning pen is closed through the switch after scanning is finished. The separate scan switch requires the user to apply additional switching actions during the scan, and the continuity of operation is poor. The utility model discloses the trigger switch that will control the wand to open or close sets up on the same terminal surface of wand casing with the scanning window, and with trigger switch pressure to the medium at scanning object place in order to produce pressure signal when the scanning window aims at the scanning object, this pressure signal converts the signal of telecommunication that can trigger the wand and begin to scan into through pressure sensor, makes the wand get into operating condition. The switch triggering mode can combine the switching action and the scanning action of the user into one action, reduces the operation burden of the user, enables the scanning process to be easier and more convenient, and enables the scanning efficiency to be higher.

Having described the basic principles of the present invention, various non-limiting embodiments of the invention are described in detail below.

Application scene overview

It should be noted that the following application scenarios are presented merely to facilitate an understanding of the spirit and principles of the present invention, and the embodiments of the present invention are not limited in this respect. Rather, embodiments of the present invention may be applied to any scenario where applicable.

Use the utility model provides a text on wand to paper books is scanned as an example, and the user presses the one end at wand's scanning window place to the paper to the characters of waiting to scan are aimed at to the scanning window. When the scanning pen is pressed to the paper surface, the trigger switch which is positioned at the same end with the scanning window is contacted with the paper surface, and generates a pressure signal under the contact action, and the pressure signal is converted into an electric signal through the pressure sensor to trigger the scanning pen to start scanning the paper surface characters. The user moves the scanning pen along the character typesetting direction, and in the moving process, the trigger switch is continuously in a pressed state, so that the scanning pen can continuously scan the characters on the paper surface. When the user finishes scanning, the scanning pen is lifted, the trigger switch is separated from the paper surface, and after the pressure signal generated by contact is lost, the scanning pen is automatically closed, and the scanning process is stopped.

Exemplary embodiments

In the following, in conjunction with the above application scenarios, a wand according to an exemplary embodiment of the present invention is described with reference to fig. 1 to 3.

In an exemplary embodiment of the present invention, a novel wand is provided. As shown in fig. 1, the wand 100 may generally include a housing 110, a scanning window 120, a trigger switch 130, and a pressure sensor 140.

The scanning window 120 is located at one end of the housing 110 close to the object to be scanned (the other end of the housing is not shown), and image capturing tools such as a camera can be disposed in the housing, so that the object to be scanned can be identified and scanned through the scanning window 120. The scanning object may be, for example, a photo or a text on a book, and when the user needs to capture the text, the scanning window 120 may be attached to the photo or the book and aligned with the text thereon for scanning.

The trigger switch 130 is located on the end face of the housing 110 where the scanning window 120 is located, that is, the trigger switch 130 and the scanning window 120 are located at the same end. When the user aligns the scanning window 120 with the scanning object and presses the entire scanning pen against the medium on which the scanning object is located, the trigger switch 130 will come into contact with the medium to generate a pressure signal. The trigger switch 130 may extend a certain length outside the housing, and when the trigger switch is pressed, the trigger switch is pushed toward the housing of the stylus to generate a pressure signal.

The pressure sensor 140 is connected to the trigger switch 130, and when the trigger switch 130 generates a pressure signal due to contact with a medium on which a scanning object is located, the pressure sensor 140 can detect the pressure signal and convert the pressure signal into an electrical signal for triggering the scanning pen to start scanning. In response to the electrical signal, the stylus enters an operational state in which scanning is initiated.

In the exemplary embodiment, a switch triggering manner based on a pressure sensor is adopted, and by disposing the trigger switch 130 and the scanning window 120 at the same end, the trigger switch 130 can be brought into contact with a medium where the scanning object is located while the scanning window 120 is aligned with the scanning object, so as to trigger the scanning pen to start scanning the scanning object. The switching action and the scanning action are combined into one action, the user does not need to apply extra switching operation, the scanning window 120 is pressed to the medium where the scanning object is located, scanning is started, the scanning can be finished when the scanning window 120 is far away from the medium, the action of the whole scanning process is continuous, the triggering is convenient, and the use convenience and the scanning efficiency of the scanning pen are obviously improved.

On the basis of the above exemplary embodiment, the pressure sensor 140 may be configured to be always in a pre-pressure state, that is, the pressure sensor 140 has a preset initial pressure, and the pressure range of the initial pressure may be, for example, 10 to 100 kPa. That is, the trigger switch 130 is assembled opposite to the pressure sensor 140, and when the trigger switch 130 contacts the medium on which the scanning object is located, the pressure between the trigger switch 130 and the pressure sensor 140 becomes small, that is, the generated pressure signal is the pressure drop signal of the initial pressure. The pressure drop-based signal detection and triggering mode has the advantages of high sensitivity, accurate detection and the like.

Alternatively, the pressure sensor 140 may use a resistance strain gauge pressure sensor, in which a resistance strain gauge is provided. In the non-triggered state, the resistance strain gauge has a preset deformation. When the trigger switch 130 contacts with the medium where the scanning object is located, the trigger switch 130 is forced to move towards the inside of the housing 110, the pressure sensor 140 connected with the trigger switch 130 is forced to change, the current of the pressure sensor correspondingly changes, and the electric signal corresponding to the current change can trigger the scanning pen to enter the working state of starting scanning.

As shown in fig. 2, in another exemplary embodiment of the present invention, the trigger switch 130 may include a first trigger 131 and a second trigger 132. The first flip-flop 131 is located at one side of the scan window 120, and the second flip-flop 132 is located at the other side of the scan window 120.

For the scanned object of horizontally laid out text, the user can align the scanning window 120 between the first trigger 131 and the second trigger 132 with the scanned object by placing the scanning pen to position the first trigger 131 and the second trigger 132 above and below the scanned text, respectively.

In the exemplary embodiment, the two triggers at different positions are arranged, so that the flexibility of switch triggering of the scanning pen can be improved, the scanning pen can be suitable for scanning media with uneven surfaces or irregular shapes, and the use convenience of the scanning pen is improved.

With continued reference to fig. 2, based on the above exemplary embodiment, the wand 100 may further include an observation window 210, and the observation window 210 is located in the scanning window 120 for observing the scanning object. Through the observation window 210, the user can directly observe the scan object aligned with the scan window 120, and particularly, can observe the position relationship between the scan object and the scan window 120. In general, it is necessary to align the scan object with the center of the scan window 120 so that the image capturing unit of the scan pen can accurately scan the scan object.

By arranging the observation window 210 corresponding to the scanning window 120 on the housing 110, a user can directly observe a scanning object covered by the scanning window 120, so as to accurately adjust the position of the scanning pen and the path of scanning movement, avoid the situation that the scanning object exceeds the scanning range of the scanning pen due to the shielding of the housing 110, and thus, the identification accuracy and the scanning efficiency of the scanning pen can be improved.

Preferably, the width (dimension along the width direction of the scanning pen) of the observation window 210 is smaller than the width of the scanning window 120, and the length (dimension along the length direction of the scanning pen) of the observation window 210 is smaller than the depth of the scanning window 120. For example, if the width of the scanning window 120 is 1.2cm and the depth is 0.9cm, the width of the observation window 210 may be 1.1cm and the length may be 0.7 cm. The thickness of the viewing window 210 may be the same as the thickness of the housing 110 of the wand. It should be noted that the data listed here are only used to explain the present invention, and the size of the scanning window 120 and the observation window 210 may be other values, and the present invention is not limited to this. The viewing window 210 may be provided with a transparent viewing plate 220 in contact with the housing 110, and the transparent viewing plate 220 may be, for example, a transparent plastic plate or a transparent glass plate.

Besides, the transparent viewing plate 220 may further be provided with an indicator for indicating the position of the scanning object, the indicator may be, for example, an indicator line 230 parallel to the length direction of the scanning pen as shown in fig. 2, during the scanning movement of the scanning pen, the indicator line 230 may be always aligned with the scanning object, and once the position deviation occurs, the position and the moving direction of the scanning pen may be adjusted in real time.

In the wand shown in FIG. 2, the indicator line 230 is disposed along the entire length of the wand, but in other embodiments, the indicator line 230 may extend in the width direction of the wand or in any other direction. Besides, the indication mark arranged on the transparent observation plate can be two parallel lines, scale marks, arrows and the like, and the utility model discloses do not specially limit to this.

Through set up transparent observation board and set up the instruction sign on transparent observation board on observation window, can instruct the position of scanning object in real time at the scanning in-process, convenience of customers observes and aims at. Especially, under the condition that the arrangement position of the scanning objects is irregular or the arrangement of the scanning objects is too close, the scanning window can be easily aligned to the scanning objects under the guidance of the indication mark, so that the scanning accuracy and the scanning efficiency are improved.

With continued reference to fig. 2, the scanning window 120 may further include a ramp portion 121 and a flat portion 122. The slope part 121 is located on the bottom surface of the housing for stopping against the medium on which the scanning object is located. Opposite the inclined surface portion 121 is a planar portion 122 located on the top surface of the housing, the planar portion 122 is used for providing an observation window 210, and the observation window 210 may pass through the planar portion 122 and the inclined surface portion 121. When a user needs to perform a scanning operation, the inclined surface portion 121 of the scanning window 120 may be abutted against a medium on which a scanning object such as a book or a photo is placed, and then a specific position of the scanning object may be viewed through the observation window 210 penetrating through the flat surface portion 122 and the inclined surface portion 121, so as to align the scanning object with the scanning window 120.

As shown in fig. 3, since the inclined surface portion 121 as a whole presents an inclined surface having an inclined angle with the flat bottom surface 111 of the housing 110, when the inclined surface portion 121 is stopped against the medium on which the scanning object is placed, the flat surface portion 122 located on the top surface of the housing 110 just intersects the medium at an inclination. The entire stylus also intersects the medium obliquely, unlike the perpendicular intersection, in which the user can easily view the scan object located below the stylus through the observation window 210 located on the plane portion 122 in the direct-view state. Moreover, the oblique intersection of the scanning pen and the medium by the inclined surface part 121 also conforms to the normal holding posture of the user, and the comfort level of the user when holding the scanning pen for scanning operation is improved.

As shown in fig. 4A, the inclined surface portion 121 may be a plane having a predetermined included angle α with the plane portion 122 as a whole, and may be, for example, 30 to 60 degrees. Preferably, the predetermined included angle α may be 45 degrees, which is suitable for the user with high comfort to hold the pen. As shown in fig. 4B, the inclined surface portion 121 may also be a smoothly transitional curved surface, one side of which has a predetermined included angle β with the plane portion 122, and the other side of which is connected with the bottom surface of the housing. The preset included angle β may be, for example, 30 to 90 degrees. Preferably, the preset included angle β may be 90 °, and the inclined surface portion 121 gradually and smoothly transitions from the nib portion to the rear portion, and finally is parallel or approximately parallel to the plane portion 122. The inclined surface portion 121 having the curved surface structure enables a user to more conveniently adjust a holding posture of the stylus pen and to conveniently adjust an inclination angle of the stylus pen.

The inclined plane part 121 can realize that the whole scanning pen is intersected with the medium in an inclined way, and the utility model discloses do not specially limit its concrete structure and shape. In the exemplary embodiment, by providing the scanning window 120 having the planar portion 122 and the inclined portion 121 and providing the observation window 210 penetrating through the planar portion 122 and the inclined portion 121 in the scanning window 120, the user can directly observe the scanning object covered by the scanning window 120 in a state of holding the scanning pen in an inclined state, thereby accurately adjusting the position of the scanning pen and the path of scanning movement, avoiding the situation that the scanning object exceeds the scanning range of the scanning pen due to the shielding of the housing 110, and thus, the recognition accuracy and the scanning efficiency of the scanning pen can be improved.

As shown in fig. 5, in another exemplary embodiment of the present invention, the wand 100 may further include a main circuit board 530 located inside the housing 110, and an image capturing unit 510 and an illumination unit 520 connected to the main circuit board 530. The image acquisition unit 510 is configured to acquire image information of a scan object through a scan window, and the illumination unit 520 is configured to provide an illumination light source to the scan object through the scan window.

In this exemplary embodiment, the image acquisition unit 510 may further include: a lens 511 and an image sensor 512. The lens 511 is used for acquiring an optical image of a scanning object; the image sensor 512 is connected to the lens 511, and is configured to convert an optical image captured by the lens 511 into a digital image.

The imaging center line of the image capturing unit 510 and the illumination center line of the illumination unit 520 may be approximately parallel to each other and may have a predetermined angle. Preferably, the angle can be set to 5 to 10 degrees, so that the light coverage is improved while the vertical incidence is avoided. By setting the two to have a preset angle, the illumination light emitted by the illumination unit 520 can be obliquely incident on the surface of the scanned medium, so that the illumination can be ensured not to be excessively concentrated, the uniformity of the illumination can be improved, and the resolution of the acquired image and the contrast of the detection target can be improved.

Based on the above exemplary embodiments, the utility model provides a general workflow that wand scans is as follows:

when a user desires to scan, the end of the stylus 100 with the scanning window 120 may be placed on a scanning medium. The user can see through the observation window 210 and adjust the position relationship between the scanning object and the scanning window 120, and particularly, the scanning object and the scanning window 120 can be aligned through the indication mark provided on the transparent observation plate 220. At the same time, the user may apply a force to the stylus 100 that presses against the scan medium, causing the trigger switch 130 to generate a pressure signal that is converted to an electrical signal by the pressure sensor 140 and transmitted to the main circuit board 530 of the stylus. Then, the digital signal processor on the main circuit board 530 senses the change and controls the illuminating unit 520 to emit illuminating light to the scanning object, and the image capturing unit 510 may start image capturing. The image capturing unit 510 may be connected to the main Circuit board 530 through a Flexible Printed Circuit (FPC), and may transmit captured image information to the main Circuit board 530. The processor on the main circuit board 530 can perform processing such as stitching, binarization, identification and the like on the acquired image, and can control the page display of the scanning pen display screen, and can receive a control instruction of a user on a scanned object through a virtual control provided by the display screen so as to control the processor to perform operations such as storage, editing, translation and the like on the scanned object. When the user completes the scan, the stylus 100 may be lifted, the trigger switch 130 disengages from the scan medium, and the pressure sensor 140 will return to its original state after the pressure is lost. The processor on the main circuit board controls the image capture unit 510 and the illumination unit 520 to turn off in response to this pressure change, ending the scanning process.

It should be noted that although in the above detailed description several units or sub-units of the stylus are mentioned, this division is merely exemplary and not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit according to embodiments of the invention. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.

While the spirit and principles of the invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the described embodiments, nor is the division of aspects, which is merely for convenience of presentation, to imply that features in these aspects cannot be combined to advantage. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A wand, comprising:

a housing;

the pressure sensor is connected with the trigger switch and used for detecting the pressure signal and converting the pressure signal into an electric signal for triggering the scanning pen to start scanning; the pressure sensor is a resistance strain type pressure sensor;

the pressure sensor is configured to have an initial pressure, and the pressure signal generated by the trigger switch is a pressure drop signal of the initial pressure, wherein the pressure range of the initial pressure is 10-100 kPa.

2. The wand of claim 1, wherein the trigger switch comprises a first trigger and a second trigger disposed opposite each other on opposite sides of the scanning window.

3. The wand of any one of claims 1-2, further comprising:

4. A wand according to claim 3, wherein the viewing window is provided with a transparent viewing plate in contact with the housing.

5. The wand of claim 4, wherein the transparent viewing plate is provided with an indicator for indicating the position of the scanned object.

6. The wand of claim 5, wherein the indicator is a line parallel to a length of the wand.

7. A wand according to any one of claims 1 to 2, wherein the scanning window comprises:

a planar portion opposite to the inclined portion.

8. The wand of claim 7, wherein the ramp portion is a smooth-transition curved surface.

9. The wand of any one of claims 1-2, further comprising:

10. The wand of claim 9, wherein the image capture unit comprises:

a lens for acquiring an optical image of the scan object;

11. The wand of claim 9, wherein the imaging center line of the image capturing unit and the illumination center line of the illumination unit have a predetermined angle therebetween, and the predetermined angle is 5 to 10 degrees.