CN212341886U

CN212341886U - Camera calibration device applied to scanning translation pen and dictionary pen

Info

Publication number: CN212341886U
Application number: CN202021735900.8U
Authority: CN
Inventors: 杨奇
Original assignee: Shenzhen Xuezhiyou Technology Co ltd
Current assignee: Shenzhen Xuezhiyou Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-01-12
Anticipated expiration: 2030-08-17

Abstract

The utility model relates to a scanning translation pen technical field discloses a be applied to camera calibration calibrating device of scanning translation pen and dictionary pen, comprising a base plate, the epitheca, step motor, the control mainboard, a display screen, rotational speed adjust knob, the rotary disk, the drive shaft, fixing sleeve, the silica gel cover, supporting seat and calibration paper, the centre of the upper end wall of epitheca is protruding to be equipped with a clamping seat, a slot is established to the upper end wall concavity of clamping seat, the upper end of slot is located to the silica gel cover inlays, the supporting seat sets up the bottom at the slot, fixing sleeve fixes on the interior roof of epitheca, the rotatable setting of rotary disk is at fixing sleeve's upper end, the setting of rotary disk interval is under the slot, the upper end and the rotary disk fixed connection of drive shaft, the drive shaft is connected with step motor, the calibration paper sets up on the upper end wall of rotary disk. The technical scheme of the utility model effective window that can the automatic calibration camera, production efficiency and product quality are effectively improved to convenient and fast.

Description

Camera calibration device applied to scanning translation pen and dictionary pen

Technical Field

The utility model relates to a scanning translation pen technical field, in particular to be applied to camera calibration calibrating device of scanning translation pen and dictionary pen.

Background

In the recent 1-2 years, the education industry has started intelligent scanning translation pens, and users can conveniently find unknown words by scanning the translation pens and even pick up and store favorite articles; the calibration and calibration of the effective window boundary line of the camera of the scanning translation pen are core requirements of products, the experience of the scanning recognition function of the camera is directly influenced, and the key technology of the quality of the products is determined, so that the camera needs to accurately calibrate the effective window boundary line.

However, the calibration and calibration method for the effective window boundary line of the current scan and translation pen camera mainly has the following disadvantages:

1. the manual calibration and calibration method has low efficiency; manual calibration in actual mass production, calibration and calibration of the camera can be completed only by arranging training of a specially-assigned person; and everyone understands the calibration method differently from the judgment standard, so that the effective window boundary line of the camera can be judged by mistake and even reworked easily;

2. the judgment method is simple, the currently and generally adopted calibration method is to judge by black and white contrast, the camera shell is white, and calibration is calibrated by black calibration paper; the shell is black and calibrated using white calibration paper; due to the diversity of the structure, the image boundary contrast is low due to the influence of ambient light, and the effective window boundary line of the camera is easy to be misjudged;

3. dust points or stains exist on the shell of the calibration paper or the scanning pen, and the boundary line of the effective window of the camera can be judged wrongly by using the conventional calibration method;

therefore, the scanning translation pen is in actual calibration, errors exist due to the fact that a physical window of a camera is irregular and the size of the design is large, the light is uneven and even has the problem of transition light, dust points and the like on a lens shell of the camera cause frequent calibration failure of a traditional calibration method, the scanning translation pen is very inconvenient in the mass production process, the universality is poor, the effective window boundary line of the camera is easily judged by mistake, the scanning experience of the scanning translation pen is poor, the efficiency in production is low, the labor consumption is too much, and further improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be applied to camera calibration calibrating device of scanning translation pen and dictionary pen, aim at solving the effective window calibration of current scanning translation pen camera and adopt the manual work to carry out inefficiency, the technical problem that the error rate is high.

In order to achieve the above object, the camera calibration device applied to the scanning translation pen and the dictionary pen comprises a bottom plate, an upper shell, a stepping motor, a control mainboard, a display screen, a rotation speed adjusting knob, a rotating disk, a driving shaft, a fixing sleeve, a silica gel sleeve, a supporting seat and calibration paper, wherein the detachable cover of the upper shell is arranged on the bottom plate, the stepping motor and the control mainboard are respectively arranged on the inner top wall of the upper shell, the display screen and the rotation speed adjusting knob are respectively arranged on the upper end wall of the upper shell, the middle of the upper end wall of the upper shell is convexly provided with a clamping seat, the upper end wall of the clamping seat is concavely provided with a through slot which is obliquely arranged, the detachable embedding of the silica gel sleeve is arranged at the upper end part of the slot, the middle of the silica gel sleeve is concavely provided with a through jack, and the supporting seat is arranged at the bottom of the slot through a screw, just the protruding butt portion that is convex setting that is equipped with respectively in the both sides of the preceding tip of supporting seat, fixed sleeve passes through screw detachable and fixes on the interior roof of epitheca, the rotatable setting of rotary disk is in fixed sleeve's upper end, just rotary disk spaced sets up under the lower diapire of slot, the upper end of drive shaft with rotary disk fixed connection, the lower tip of drive shaft with step motor connects, just step motor, display screen and rotational speed adjust knob all with the control mainboard electricity is connected, calibration paper detachable sets up on the upper end wall of rotary disk.

Further, still include synchronous pulley and hold-in range, synchronous pulley sets up respectively on the lower tip of drive shaft and step motor's output shaft, the hold-in range respectively with synchronous pulley rotatable coupling.

Further, the bearing is arranged at the upper end and the lower end of the driving shaft respectively, a containing groove capable of containing the rotating disc is concavely arranged on the upper end wall of the fixed sleeve, the rotating disc is rotatably arranged in the containing groove, the peripheral wall of the bearing is fixed at the lower end of the fixed sleeve, and the rotating disc is rotatably connected with the fixed sleeve through the bearing.

Furthermore, the lower end part of the front end wall of the clamping seat is concavely provided with an observation window communicated with the slot.

Further, still include the motor lid, the upper end wall of epitheca is concave to be equipped with a motor groove, step motor detachable inlays to be located the motor inslot sets up, the motor lid is established through screw detachable lid the upper end setting in motor groove.

The device for calibrating and calibrating the camera applied to the scanning translation pen and the dictionary pen is further characterized by further comprising supporting legs, wherein the supporting legs are vertically arranged below four base angles of the bottom plate respectively.

Furthermore, a wire inlet hole is formed below the outer side wall of the upper shell.

Further, still include shift knob and status indicator lamp, shift knob and status indicator lamp set up respectively on the upper end wall of epitheca, just shift knob and status indicator lamp all with control mainboard electricity is connected.

Furthermore, an open slot is concavely arranged on the upper end wall of the rotating disc, and the calibration paper is arranged in the open slot.

Adopt the technical scheme of the utility model, following beneficial effect has: the technical proposal of the utility model is that a clamping seat is convexly arranged in the middle of the upper end wall of an upper shell, a slot is concavely arranged on the upper end wall of the clamping seat, a silica gel sleeve is embedded at the upper end part of the slot, a supporting seat is arranged at the bottom of the slot, two sides of the front end part of the supporting seat are respectively convexly provided with an abutting part, a fixed sleeve is fixed on the inner top wall of the upper shell, a rotary disk is rotatably arranged at the upper end part of the fixed sleeve, the rotary disk is arranged under the lower bottom wall of the slot at intervals, the upper end part of a driving shaft is fixedly connected with the rotary disk, the lower end part of the driving shaft is connected with a stepping motor, calibration paper is arranged on the upper end wall of the rotary disk, thereby realizing the automatic acquisition of calibration paper images by a scanning translation pen camera, calibrating the effective boundary line window of the camera, the calibration time is short, the effective boundary line, the universality is strong, the production efficiency and the product quality are effectively improved, the cost is reduced, and the practicability is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic diagram of an overall structure of a scan translation pen and a dictionary pen applied to a camera calibration device of the scan translation pen and the dictionary pen according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an overall structure of a camera calibration device applied to a scan translation pen and a dictionary pen according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a camera calibration device applied to a scan translation pen and a dictionary pen according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a part of a camera calibration and calibration device applied to a scan translation pen and a dictionary pen according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another part of the calibration apparatus for calibrating a camera applied to a scan translation pen and a dictionary pen according to an embodiment of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 5;

fig. 7 is a schematic diagram of a partial cross-sectional structure of a camera calibration device applied to a scan translation pen and a dictionary pen according to an embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a state of placing the scan translation pen and the dictionary pen in the camera calibration and calibration device applied to the scan translation pen and the dictionary pen according to an embodiment of the present invention;

FIG. 9 is a cross-sectional structural view of FIG. 8;

FIG. 10 is an enlarged view at B of FIG. 9;

fig. 11 is a schematic structural diagram of calibration paper of a camera calibration and calibration device applied to a scan translation pen and a dictionary pen according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a be applied to camera calibration calibrating device of scanning translation pen and dictionary pen.

As shown in fig. 1 to 11, in an embodiment of the present invention, the calibration device for calibrating a camera applied to a scanning translation pen and a dictionary pen includes a bottom plate 101, an upper casing 102, a stepping motor 103, a control main board 104, a display screen 105, a rotation speed adjusting knob 106, a rotary disk 107, a driving shaft 108, a fixing sleeve 109, a silica gel sleeve 110, a supporting seat 111, and calibration paper 200, wherein the upper casing 102 is detachably covered on the bottom plate 101, the stepping motor 103 and the control main board 104 are respectively disposed on an inner top wall of the upper casing 102, the display screen 105 and the rotation speed adjusting knob 106 are respectively disposed on an upper end wall of the upper casing 102, a clamping seat 1021 is convexly disposed in the middle of the upper end wall of the upper casing 102, a through and obliquely disposed slot 1022 is concavely disposed on the upper end wall of the clamping seat 1021, and the silica gel sleeve 110 is detachably embedded in the upper end of the slot 1022, the middle of the silica gel cover 110 is concavely provided with a through insertion hole 1101 which is matched with the outer peripheral wall of the lower end part of the scanning translation pen and the dictionary pen 300, the supporting seat 111 is detachably arranged at the bottom of the insertion groove 1022 through a screw 112, two sides of the front end part of the supporting seat 111 are respectively convexly provided with an abutting part 1111 which is arranged in a circular arc shape, the fixing sleeve 109 is detachably fixed on the inner top wall of the upper shell 102 through a screw 113, the rotating disc 107 is rotatably arranged at the upper end part of the fixing sleeve 109, the rotating disc 107 is arranged under the lower bottom wall of the insertion groove 1022 at intervals, the upper end part of the driving shaft 108 is fixedly connected with the rotating disc 107, the lower end part of the driving shaft 108 is connected with the stepping motor 103, and the stepping motor 103, the display screen 105 and the rotating speed adjusting knob 106 are all electrically connected with the control main board 104, the calibration paper 200 is detachably provided on the upper end wall of the rotary disk 107.

Specifically, the device further comprises a synchronous pulley 114 and a synchronous belt 115, wherein the synchronous pulley 114 is respectively arranged at the lower end part of the driving shaft 108 and the output shaft of the stepping motor 103, and the synchronous belt 115 is respectively rotatably connected with the synchronous pulley 114.

Specifically, the device further comprises bearings 116, the bearings 116 are respectively arranged at the upper end and the lower end of the driving shaft 108, an accommodating groove 1091 for accommodating the rotating disc 107 is concavely arranged on the upper end wall of the fixed sleeve 109, the rotating disc 107 is rotatably arranged in the accommodating groove 1091, the peripheral walls of the bearings 115 are fixed at the lower end of the fixed sleeve 109, and the rotating disc 107 is rotatably connected with the fixed sleeve 109 through the bearings 116.

Specifically, the lower tip of the front end wall of the clamping seat 1021 is concavely provided with an observation window 1023 communicated with the slot 1022, so that whether the LED light supplement lamp is normally lighted or not can be observed conveniently, and the LED light supplement lamp is convenient and practical.

Specifically, still include motor lid 117, the upper end wall of epitheca 102 is equipped with a motor groove 1024 concavely, step motor 103 detachable inlays to be located set up in the motor groove 1024, motor lid 117 passes through the screw detachable lid and establishes the upper end setting of motor groove 1024, the installation and the dismantlement maintenance of step motor of being convenient for.

Specifically, the support device further comprises support legs 118, and the support legs 118 are respectively vertically arranged below four bottom corners of the bottom plate 101.

Specifically, a wire inlet hole 1025 is formed below the outer side wall of the upper shell 102.

Specifically, the intelligent control system further comprises a switch button 119 and a status indicator lamp 120, wherein the switch button 119 and the status indicator lamp 1020 are respectively arranged on the upper end wall of the upper shell 102, and the switch button 119 and the status indicator lamp 120 are electrically connected with the control mainboard 104.

Specifically, the upper end wall of the rotating disc 107 is recessed to form an open slot 1071, and the calibration paper 200 is disposed in the open slot 1071, so as to fix the calibration paper and prevent the calibration paper from moving.

Specifically, the utility model discloses a mark and calibration theory of operation and process do: as shown in fig. 1, 8, 9 and 10, the lower end of the scanning translation pen and the dictionary pen 300 is inserted into the insertion hole 1101 at the upper end of the holder 1021 at the top of the upper housing 102, the lower end of the scanning translation pen and the dictionary pen 300 is provided with a scanning port 301, the upper end of the scanning port 301 is provided with a camera and an LED fill-in light, the two sides of the scanning port 301 are respectively provided with a push switch 302, the push switch 302 is respectively abutted against the abutting portion 1111 at the front end of the supporting seat 111, the camera and the LED fill-in light are started by pushing the scanning translation pen and the dictionary pen 300 up and down, at this time, whether the LED fill-in light is normally lighted can be observed through the observation window 1023 at the front end wall of the holder 1021, which is convenient and practical, the calibration paper 200 is placed on the upper end wall of the rotary disk 107, the stepping motor 103 is started to drive the calibration paper 200 to rotate at a constant speed, the calibration program preset by the scanning translation, every interval 15 milliseconds (the frame period of camera is 15 milliseconds) shoots calibration paper 200 and gathers the image, and 100 pictures are sampled in succession, and as the data sample of calibration procedure analysis image, the calibration procedure of maring accomplishes the demarcation and the calibration of camera effective window automatically according to the image data of gathering, easy operation, convenient and fast, calibration efficiency and the precision of having improved the camera to can effectively put high production efficiency, reduce the cost of labor, put high the quality of product, the practicality is strong.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A camera calibration device applied to a scanning translation pen and a dictionary pen is characterized by comprising a bottom plate, an upper shell, a stepping motor, a control main board, a display screen, a rotating speed adjusting knob, a rotating disk, a driving shaft, a fixing sleeve, a silica gel sleeve, a supporting seat and calibration paper, wherein the detachable cover of the upper shell is arranged on the bottom plate, the stepping motor and the control main board are respectively arranged on the inner top wall of the upper shell, the display screen and the rotating speed adjusting knob are respectively arranged on the upper end wall of the upper shell, a clamping seat is convexly arranged in the middle of the upper end wall of the upper shell, a penetrating slot which is obliquely arranged is concavely arranged on the upper end wall of the clamping seat, the detachable silica gel sleeve is embedded in the upper end part of the slot, a penetrating jack is concavely arranged in the middle of the silica gel sleeve, and the supporting seat is arranged at the bottom of the slot through a detachable screw, just the protruding butt portion that is convex setting that is equipped with respectively in the both sides of the preceding tip of supporting seat, fixed sleeve passes through screw detachable and fixes on the interior roof of epitheca, the rotatable setting of rotary disk is in fixed sleeve's upper end, just rotary disk spaced sets up under the lower diapire of slot, the upper end of drive shaft with rotary disk fixed connection, the lower tip of drive shaft with step motor connects, just step motor, display screen and rotational speed adjust knob all with the control mainboard electricity is connected, calibration paper detachable sets up on the upper end wall of rotary disk.

2. The device for calibrating the calibration of a camera as applied to a scan translation pen and a dictionary pen as recited in claim 1, further comprising a synchronous pulley and a synchronous belt, wherein the synchronous pulleys are respectively disposed on the lower end portion of the driving shaft and the output shaft of the stepping motor, and the synchronous belts are respectively rotatably connected to the synchronous pulleys.

3. The device for calibrating the calibration of a camera as claimed in claim 1, further comprising bearings disposed at the upper and lower ends of the driving shaft, wherein the upper wall of the fixed sleeve is recessed with a receiving slot for receiving the rotating disc, the rotating disc is rotatably disposed in the receiving slot, the outer peripheral walls of the bearings are fixed at the lower end of the fixed sleeve, and the rotating disc is rotatably connected to the fixed sleeve through the bearings.

4. The apparatus for calibrating calibration of camera calibration as applied to a scan conversion pen and a dictionary pen as claimed in claim 1, wherein a lower end portion of the front end wall of the clamping holder is recessed with an observation window communicating with the slot.

5. The device for calibrating the calibration of the camera head applied to the scanning translation pen and the dictionary pen as claimed in claim 1, further comprising a motor cover, wherein a motor slot is recessed in the upper end wall of the upper casing, the stepping motor is detachably embedded in the motor slot, and the motor cover is detachably disposed at the upper end of the motor slot through a screw detachable cover.

6. The apparatus of claim 1, further comprising support legs vertically disposed below the four bottom corners of the bottom plate.

7. The apparatus as claimed in claim 1, wherein a wire hole is formed below the outer sidewall of the upper housing.

8. The camera calibration device applied to the scanning translation pen and the dictionary pen as claimed in claim 1, further comprising a switch button and a status indicator light, wherein the switch button and the status indicator light are respectively disposed on the upper end wall of the upper shell, and the switch button and the status indicator light are electrically connected to the control main board.

9. The device for calibrating the calibration of the camera of the scanning translation pen and the dictionary pen as claimed in claim 1, wherein an open slot is recessed in the upper end wall of the rotating disc, and the calibration paper is disposed in the open slot.