CN214101475U

CN214101475U - Data acquisition device and system

Info

Publication number: CN214101475U
Application number: CN202023159765.XU
Authority: CN
Inventors: 刘昆; 李博; 王展
Original assignee: Beijing Namek Technologies Co Ltd
Current assignee: Beijing Namek Technologies Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-08-31
Anticipated expiration: 2030-12-24

Abstract

The utility model provides a data acquisition device and system, data acquisition device includes: the intelligent mobile device comprises an intelligent mobile device, a support for supporting the intelligent mobile device to stand on a first plane, and an image acquisition device connected with the intelligent mobile device, wherein an image acquisition surface of the image acquisition device is over against the first plane, and the distance between the image acquisition device and the first plane is smaller than a preset threshold value; the intelligent mobile equipment comprises a processor, a display screen and a first data interface; the image acquisition equipment is used for acquiring images in the test paper answer area and sending the acquired images to the intelligent mobile equipment; and the intelligent mobile equipment receives the image and displays the received image on a display screen. The utility model discloses can gather the student on intelligent mobile device's display screen in real time at the regional answer condition of examination paper answer very conveniently to realized very conveniently from the conversion of paper answer examination paper to electron answer examination paper, thereby read paper for follow-up electron and provide the basis.

Description

Data acquisition device and system

Technical Field

The utility model relates to a data acquisition technical field, concretely relates to data acquisition device and system.

Background

The examination is an indispensable link in the teaching process, whether the students really master the knowledge taught in the classroom can be known through the examination, and weak links or understanding error areas of the students can be found through the examination, so that more targeted teaching plan adjustment and review of important knowledge points can be performed.

Although popular, electronic tests still cannot completely replace paper tests. At present, paper is still used for examinations in many cases, and when paper examinations are used, the examination paper is a great challenge for examination reading work. The paper examination paper has obviously lower reading speed and is not convenient for later verification and lookup, so the problem that how the paper examination paper is converted into the electronic answer examination paper after the students answer is urgently needed to be solved.

The means that adopts at present generally is after student's answer, and the unified student's paper of collecting, then carries out electronic scanning with the paper of collecting in unison again, and then obtains the electronic answer paper, however this kind of mode work load is big, inefficiency, experiences relatively poorly.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a data acquisition device and system, the utility model discloses can gather intelligent mobile device's display screen in real time with the student at the regional answer condition of examination paper answer very conveniently at the examination in-process to realized very conveniently from the conversion of paper answer paper to electron answer paper, thereby read the paper for follow-up electron and provide the basis.

Specifically, the utility model provides a following technical scheme:

in a first aspect, the utility model provides a data acquisition device for the online data acquisition of single student's examination paper answer condition, include: the intelligent mobile device comprises an intelligent mobile device, a support for supporting the intelligent mobile device to stand on a first plane, and an image acquisition device connected with the intelligent mobile device, wherein an image acquisition surface of the image acquisition device is over against the first plane, and the distance between the image acquisition device and the first plane is smaller than a preset threshold value; the first plane is a plane where an answer area of a single student test paper is located;

the intelligent mobile equipment comprises a processor, a display screen and a first data interface; the display screen and the first data interface are respectively connected with the processor;

the image acquisition equipment comprises a second data interface, an image acquisition surface of the image acquisition equipment is opposite to the first plane and is used for acquiring images in the answer area of the test paper and sending the acquired images to the first data interface of the intelligent mobile equipment through the second data interface;

the intelligent mobile equipment is used for receiving the image through the first data interface and displaying the received image on the display screen through the processor.

Further, the image acquisition equipment and the intelligent mobile equipment are arranged integrally, and the image acquisition equipment is a single camera;

the display screen of intelligent mobile device with first plane is perpendicular or with first planar contained angle is located and predetermines the within range, image acquisition equipment sets up the display screen is kept away from first planar one side, image acquisition equipment's view-finding unit to with first plane is parallel and can the at utmost cover the direction extension in test paper answer region.

Further, the image acquisition equipment is arranged in the central area of one side of the display screen, which is far away from the first plane.

Further, the image acquisition equipment and the intelligent mobile equipment are integrally arranged, and the image acquisition equipment is of a plate-shaped structure;

the display screen of the intelligent mobile device is perpendicular to the first plane or the included angle between the display screen of the intelligent mobile device and the first plane is within a preset range, and the image acquisition device is arranged on one side, far away from the first plane, of the display screen in a foldable mode;

the image acquisition equipment is in an unfolded state when acquiring images, and a view finding unit of the image acquisition equipment extends towards a direction which is parallel to the first plane and can cover the answer area of the test paper to the maximum extent when the image acquisition equipment is in the unfolded state;

image acquisition equipment is in fold condition when not carrying out image acquisition, image acquisition equipment is when fold condition, image acquisition equipment's view finding unit hugs closely the front of display screen or the back of display screen, specifically with image acquisition equipment's folding direction is relevant.

Furthermore, an NMOS linear array image sensor is disposed in the image acquisition device of the plate-shaped structure, and the NMOS linear array image sensor is of a rectangular structure.

Further, a plurality of CCD image sensors are arranged in the image acquisition equipment with the plate-shaped structure and are uniformly distributed.

Furthermore, the image acquisition equipment and the intelligent mobile equipment are integrally arranged, and the image acquisition equipment is of a strip-shaped structure;

the display screen of the intelligent mobile device is perpendicular to the first plane or the included angle between the display screen of the intelligent mobile device and the first plane is within a preset range, and the image acquisition device is arranged on one side of the display screen, which is in a non-parallel state, of the first plane in a foldable manner and is located at the end position of the one side; one end of the image acquisition equipment is connected with the end head through a connecting piece;

the image acquisition equipment is in fold condition when not carrying out image acquisition, when image acquisition equipment is in fold condition, image acquisition equipment's view finding unit hugs closely the side of display screen.

Further, the connecting piece is a rotatable connecting piece; the image acquisition equipment with the strip-shaped structure rotates 0-90 degrees in a preset space through the rotatable connecting piece.

Furthermore, the number of the image acquisition devices of the strip-shaped structure is two, the two image acquisition devices are respectively arranged on two opposite sides of the display screen, which are in a non-parallel state with the first plane in a foldable manner, and are respectively located at the end positions of the two opposite sides; one end of each of the two image acquisition devices is connected with the end positions of the two sides through a connecting piece.

Furthermore, the image acquisition equipment and the intelligent mobile equipment are independently arranged in a split manner; the image acquisition equipment comprises a base, a support and an image acquisition part which can be bent and rotated; the support is connected with the base, the bendable and rotatable image acquisition part is connected with the support, the image acquisition equipment is placed on the first plane through the base and the support, and the image acquisition equipment is used for acquiring images in the test paper answer area by facing the first plane through the bendable and rotatable image acquisition part;

the image acquisition equipment is connected with the intelligent mobile equipment through a data line.

Further, the preset threshold is 0.5 m.

Further, the intelligent mobile device is a mobile phone, a notebook computer or a PAD.

Further, the first data interface and the second data interface are USB interfaces.

In a second aspect, the present invention provides a data acquisition system, including: a smart computer and at least one data acquisition device as described in the first aspect;

and the intelligent mobile equipment in the data acquisition device is used for transmitting the acquired image to the intelligent computer in a WIFI or mobile network mode.

According to the above technical scheme, the utility model provides a data acquisition device and system, include: the intelligent mobile device comprises an intelligent mobile device, a support and an image acquisition device, wherein the support supports the intelligent mobile device to stand on a first plane, the image acquisition device is connected with the intelligent mobile device, an image acquisition surface of the image acquisition device is over against the first plane, and the distance between the image acquisition device and the first plane is smaller than a preset threshold value; the intelligent mobile equipment comprises a processor, a display screen and a first data interface; the image acquisition equipment is used for acquiring images in the test paper answer area and sending the acquired images to the intelligent mobile equipment; and the intelligent mobile equipment receives the image and displays the received image on a display screen. The utility model discloses can collect the student on intelligent mobile device's display screen in real time at the regional answer condition of examination paper answer very conveniently at the examination in-process to realized very conveniently from the conversion of paper answer paper to electron answer paper, thereby read the paper for follow-up electron and provide the basis.

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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 3 is a third schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 4 is a fourth schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 5 is a fifth schematic structural view of a data acquisition device according to an embodiment of the present invention;

fig. 6 is a sixth schematic structural view of a data acquisition device according to an embodiment of the present invention;

fig. 7 is a seventh schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 8 is an eighth schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 9 is a ninth schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 10 is a tenth schematic structural diagram of a data acquisition device according to an embodiment of the present invention;

fig. 11 is a schematic view of an application scenario of a data acquisition device according to an embodiment of the present invention;

fig. 12 is a second schematic view of an application scenario of the data acquisition device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are 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.

Fig. 1 illustrates an embodiment of the present invention provides a schematic structural diagram of a data acquisition device, such as fig. 1, the data acquisition device that this embodiment provides for the online data acquisition of single student's examination paper answer condition, include: the intelligent mobile device comprises an intelligent mobile device 2, a support T for supporting the intelligent mobile device to stand on a first plane, and an image acquisition device 1 connected with the intelligent mobile device 2, wherein an image acquisition surface of the image acquisition device 1 is over against the first plane 3, and the distance between the image acquisition device 1 and the first plane 3 is smaller than a preset threshold value; the first plane 3 is a plane where an answer area of a single student test paper is located;

the intelligent mobile device 2 comprises a processor 21, a display screen 22 and a first data interface 23; the display screen 22 and the first data interface 23 are respectively connected with the processor 21;

the image acquisition equipment 1 comprises a second data interface a, an image acquisition surface of the image acquisition equipment 1 is opposite to the first plane 3 and is used for acquiring images in a test paper answer area and sending the acquired images to a first data interface 23 of the intelligent mobile equipment through the second data interface a;

the smart mobile device 2 is configured to receive the image through the first data interface 23, and display the received image on the display screen 22 through the processor 21.

In this embodiment, the image acquisition device 1 may be implemented by using a camera or a linear array image sensor, which is not limited in this embodiment.

In this embodiment, the smart mobile device 2 may be implemented by a mobile phone, a PAD, a notebook computer, or other wearable smart devices, which is not limited in this embodiment.

In this embodiment, image acquisition device 1 may be integrated with intelligent mobile device 2, or may be separated from intelligent mobile device 2, which is not limited in this embodiment, and it should be noted that, regardless of the integrated configuration of image acquisition device 1 and intelligent mobile device 2, or the separated configuration of intelligent mobile device 2, it is required to ensure that the image acquisition surface of image acquisition device 1 is just opposite to the plane where the student test paper answer area is located and the distance from the plane where the student test paper answer area is located is less than a preset threshold (for example, may be 0.5m) to ensure the acquisition effect of the answer content in the test paper answer area.

It can be understood that, the data acquisition device that this embodiment provided when using, only need the student after having answered the test question, trigger image acquisition equipment 1 carry out the collection of test paper answer condition can, after waiting to gather, image acquisition equipment 1 can send the image that gathers well for intelligent mobile device 2's first data interface 23 through second data interface a, correspondingly, intelligent mobile device 2 receives through first data interface 23 the image to through treater 21 with the image of receiving show on display screen 22, thereby realized from the conversion of paper answer sheet to electron answer sheet, thereby provide the basis for follow-up electron examination paper.

It can be understood that each intelligent mobile device 2 will subsequently send the received image to a master device, so that the electronic answer paper of each student is stored in the master device, thereby facilitating the reading of the paper by the teacher.

It is to be understood that in general the position of the image acquisition device 1 is fixed, but in some implementations the position of the image acquisition device 1 may also be arranged to be adjustable. For example, the image pickup device 1 may be provided to be rotatable or liftable, the image pickup device 1 may be provided to be movable along a slide rail, or the image pickup device 1 may be provided to be stretchable. It can be understood that, no matter setting image acquisition device 1 as rotatable or liftable, or setting image acquisition device 1 as movable along a slide rail, or setting image acquisition device 1 as stretchable, the final purpose is to make image acquisition device 1 cover the answer area of the test paper more comprehensively, thereby ensuring the image acquisition effect.

It should be noted that, the data acquisition device that this embodiment provided is not limited to the collection of examination paper answer condition, according to actual need, and simulation exercise, classroom exercise or the indoor drawing exercise of drawing of the informal examination in the real scene all belong to the equivalent variant of this embodiment scheme, and the reason should belong to the utility model discloses a protection scope.

In this embodiment, it should be noted that the position of the image capturing apparatus 1 in fig. 1 is only an illustration and is not limited to a specific positional relationship, and the following embodiments provide specific examples when the image capturing apparatus 1 is in different positions.

According to the above technical scheme, the utility model provides a data acquisition device includes: the intelligent mobile device comprises an intelligent mobile device, a support and an image acquisition device, wherein the support supports the intelligent mobile device to stand on a first plane, the image acquisition device is connected with the intelligent mobile device, an image acquisition surface of the image acquisition device is over against the first plane, and the distance between the image acquisition device and the first plane is smaller than a preset threshold value; the intelligent mobile equipment comprises a processor, a display screen and a first data interface; the image acquisition equipment is used for acquiring images in the test paper answer area and sending the acquired images to the intelligent mobile equipment; and the intelligent mobile equipment receives the image and displays the received image on a display screen. The utility model discloses can collect the student on intelligent mobile device's display screen in real time at the regional answer condition of examination paper answer very conveniently at the examination in-process to realized very conveniently from the conversion of paper answer paper to electron answer paper, thereby read the paper for follow-up electron and provide the basis.

Based on the content of the above embodiment, in this embodiment, the image acquisition device is integrally disposed with the smart mobile device, and the image acquisition device is a single camera;

In this embodiment, as shown in fig. 2, the image capturing device 1 is integrated with the smart mobile device 2, and the image capturing device 1 is a single camera;

in this embodiment, the display screen 22 of the smart mobile device 2 is perpendicular to the first plane 3 or an included angle between the display screen 22 and the first plane 3 is located within a preset range (e.g., 80 ° to 120 °), the image capturing device 1 is disposed on a side of the display screen 22 away from the first plane 3, and a view finding unit (the view finding unit refers to a position where an image sensor is located) of the image capturing device 1 extends in a direction parallel to the first plane 3 and capable of covering the examination paper answer area to the greatest extent. As shown in fig. 2, the view finding unit of the image capturing device 1 faces the first plane 3, and is capable of capturing images in the answer area of the test paper, and sending the captured images to the first data interface 23 of the smart mobile device through the second data interface a, and the smart mobile device 2 is configured to receive the images through the first data interface 23, and display the received images on the display screen 22 through the processor 21, so as to implement conversion from a paper answer paper to an electronic answer paper.

In the present embodiment, the relationship between the display screen 22 of the smart mobile device 2 and the first plane 3 is a vertical position relationship by default, but in some cases, the relationship between the display screen 22 of the smart mobile device 2 and the first plane 3 may not be a vertical position relationship.

When the display screen 22 of intelligent mobile device 2 with when 3 is perpendicular, the face of finding a view of the unit of image acquisition equipment 1 can set up to be perpendicular with display screen 22, and then realizes the parallel of face of finding a view and first plane to can guarantee the image acquisition effect, avoid appearing because of the typeface deformation that angular deviation brought.

In this embodiment, when the included angle between the display screen 22 of the smart mobile device 2 and the first plane 3 is within a preset range (e.g., 80 ° to 120 °), e.g., 80 °, the situation may be that the user wants to make the image capturing device closer to the test paper and have a larger coverage, so that the display screen 22 is adjusted (the display screen is folded toward the first plane), so that the included angle between the display screen 22 and the first plane 3 is changed from 90 ° to 80 °, in this case, in order to ensure that the viewing surface of the viewing unit of the image capturing device 1 can still be in a parallel relationship with the first plane to ensure the image capturing effect, the user can manually adjust the viewing surface of the viewing unit of the image capturing device 1, for example, can perform an upward adjustment of a certain angle on the image capturing device 1 (the upward adjustment is an adjustment pointing away from the first plane), the angle of upturning adjustment can just offset the angle of downward (downward direction is the direction pointing to the first plane) folding of the display screen, so that the viewing surface of the viewing unit of the image acquisition device 1 can still be parallel to the first plane, the image acquisition effect is further ensured, and font deformation caused by angle deviation is avoided.

In this embodiment, it should be noted that, in an implementation manner, the image capturing device 1 is disposed in a central area of a side of the display screen 22 away from the first plane, as shown in fig. 2, so as to ensure that the image capturing device is located at a central position of the test paper, and further ensure an image capturing effect on the test paper.

Based on the content of the above embodiment, in this embodiment, the image capturing device is integrally disposed with the smart mobile device, and the image capturing device is a plate-shaped structure;

In the present embodiment, as shown in fig. 3, the image capturing device 1 is integrally disposed with the smart mobile device 2, and the image capturing device 1 has a plate-shaped structure;

the display screen 22 of the intelligent mobile device 2 is perpendicular to the first plane 3 or the included angle between the display screen 22 and the first plane 3 is within a preset range, and the image acquisition device 1 is arranged on one side of the display screen 22 away from the first plane 3 in a foldable manner;

when the image acquisition device 1 is in an unfolded state (as shown in fig. 3 or fig. 4) during image acquisition, and when the image acquisition device 1 is in the unfolded state, a view-finding unit of the image acquisition device 1 extends in a direction which is parallel to the first plane 3 and can cover a test paper answer area to the maximum extent;

image acquisition equipment is in fold condition (as shown in fig. 5) when not carrying out image acquisition, image acquisition equipment is when fold condition, image acquisition equipment's view-finding unit hugs closely the front of display screen or the back of display screen, specifically with image acquisition equipment's folding direction is relevant.

Fig. 5 is a schematic diagram of the image capturing device 1 in a folded state, and as shown in fig. 5, the viewing unit (the side having the image sensor CCD) of the image capturing device 1 is closely attached to the front surface of the display screen, but it is understood that the image capturing device 1 may also be reversely folded toward the back surface of the display screen, in which case the viewing unit of the image capturing device 1 is closely attached to the back surface of the display screen. It will be appreciated that both of these implementations may be able to achieve the objective of folding when not in use to save space while protecting the viewfinder unit of the image capturing device 1.

It will be appreciated that the image capturing device 1 of plate-like configuration may be arranged in a hinged or hinged manner on the side of the display screen 22 remote from the first plane 3, so as to enable free folding of the image capturing device 1 of plate-like configuration.

In addition, in order to conveniently utilize the existing intelligent mobile equipment such as a mobile phone or a PAD, the image acquisition equipment can be embedded into the foldable support in a foldable support mode so as to realize the automatic folding of the image acquisition equipment, and meanwhile, the foldable support is fixed on the intelligent mobile equipment, so that the aim of not changing or damaging the intelligent mobile equipment is fulfilled.

When the display screen 22 of the smart mobile device 2 with when the first plane 3 is perpendicular, the face of finding a view (image acquisition face) of the finder unit of the image acquisition device 1 can be set to be perpendicular to the display screen 22, and then the parallel of the face of finding a view and the first plane is realized, thereby the image acquisition effect can be guaranteed, and font deformation caused by angular deviation is avoided.

In this embodiment, when the included angle between the display screen 22 of the smart mobile device 2 and the first plane 3 is within a preset range (e.g., 80 ° to 120 °), for example, is 120 °, the user may want to slightly keep the image capturing device away from the user, and further avoid the oppressive feeling or uncomfortable feeling of the user due to the fact that the plate-shaped image capturing device is close to the user, for this reason, the user adjusts the display screen 22 (folds the display screen in a direction away from the first plane) so that the included angle between the display screen 22 and the first plane 3 is changed from 90 ° to 120 °, in this case, to ensure that the viewing surface of the viewing unit of the image capturing device 1 can still be in a parallel relationship with the first plane to ensure the image capturing effect, the user may manually adjust the viewing surface of the viewing unit of the image capturing device 1, for example, may perform downward adjustment of a certain angle on the image capturing device 1 (the downward adjustment refers to a direction close to the first plane) Adjustment) so that the angle of the downward turning adjustment can just offset the angle of the upward (upward direction is the direction away from the first plane) adjustment of the display screen, thereby ensuring that the viewing surface of the viewing unit of the image acquisition device 1 can still be parallel to the first plane and further ensuring the image acquisition effect, and avoiding font deformation caused by angular deviation.

In this embodiment, it should be noted that the purpose of providing the image capturing device with the plate-shaped structure is to more comprehensively capture the answer area of the user, so as to avoid the problem of missing capture in part of the answer area, and meanwhile, because the capture field of the image capturing device with the plate-shaped structure is wider, the problem of font distortion and deformation in the area far away from the image capturing device can also be avoided. In this embodiment, it should be noted that the length L and the width d of the image capturing device with a plate-shaped structure can be adjusted as required, and generally, the length of the length L is the same as or smaller than the length of the test paper when the test paper is laid. The width d is typically one-half or one-third or one-fourth of the width of the test paper when it is laid flat. The method may be specifically adjusted according to actual requirements, and this embodiment does not limit this.

In this embodiment, in an implementation manner, an NMOS linear array image sensor 11 may be disposed in the image capturing device with a plate-shaped structure, where the NMOS linear array image sensor has a rectangular structure to ensure a capturing effect, as shown in fig. 3. In another implementation, a plurality of CCD (Charge Coupled Device) image sensors 12 may be disposed in the image capturing Device with a plate-shaped structure, and the plurality of CCD image sensors are uniformly arranged, as shown in fig. 4. It can be understood that the plurality of CCD image sensors are arranged on the image collecting device having a plate-like structure, so that the image collecting area can be enlarged, the collecting effect can be ensured, and the plurality of CCD image sensors can complement each other in terms of vision, angle and lighting.

Based on the content of the above embodiment, in this embodiment, the image acquisition device and the smart mobile device are integrally arranged, and the image acquisition device is in a bar structure;

In this embodiment, as shown in fig. 6, the image capturing device 1 and the smart mobile device 2 are integrally disposed, and the image capturing device 1 has a bar-shaped structure; the display screen 22 of the intelligent mobile device 2 is perpendicular to the first plane 3 or the included angle between the display screen and the first plane is within a preset range, and the image acquisition device 1 is arranged on one side of the display screen, which is in a non-parallel state with respect to the first plane, in a foldable manner and is located at the end position of the one side (the upper left corner position of the display screen); one end of the image acquisition equipment 1 is connected with the end head through a connecting piece; the image acquisition equipment 1 is in an unfolded state when image acquisition is carried out, and when the image acquisition equipment 1 is in the unfolded state, a view finding unit of the image acquisition equipment 1 extends towards a direction which is parallel to the first plane and can cover a test paper answer area to the maximum extent; the image capturing device 1 is in a folded state when not performing image capturing, and when the image capturing device is in the folded state, a viewing unit of the image capturing device is tightly attached to a side surface of the display screen (as shown in fig. 8).

In this embodiment, it should be noted that portions of this embodiment that are consistent with the principles of the foregoing embodiments will not be described repeatedly, and specific contents may be referred to the descriptions of the foregoing embodiments.

In this embodiment, it should be noted that, by default, the image capturing device with a bar structure is located on one side of the display screen, such as the left side shown in fig. 6, in this case, the image capturing device with a bar structure can capture a complete examination paper answer area, but for an area on the right edge of the examination paper, text deformation in the captured image may be severe, so as to solve the problem, so that a user can adjust the position of the image capturing device with a bar structure as needed during use to select a better capturing angle or cover a wider range, and in an implementation manner, the connecting member is a rotatable connecting member; the image acquisition equipment with the strip-shaped structure rotates 0-90 degrees in a preset space (a space between the display screen and the third plane) through the rotatable connecting piece, as shown in fig. 7, the image acquisition equipment with the strip-shaped structure rotates towards the right side at an angle of 45 degrees, and therefore the area of the lower right corner of the test paper can be accurately acquired without deformation.

In addition, in another implementation manner, as shown in fig. 9, in order to avoid the problem of poor acquisition effect of the right area of the test paper, two image acquisition devices of the bar-shaped structure may be provided, and the two image acquisition devices may be respectively and foldably provided on two opposite sides of the display screen, which are in a non-parallel state with respect to the first plane (i.e., on the left and right sides of the display screen), and respectively located at end positions of the two opposite sides (i.e., on two top positions of the left and right sides of the display screen); one end of each of the two image acquisition devices is connected with the end positions of the two sides through a connecting piece. It should be noted that, set up 1 bar structure's image acquisition equipment in the left and right sides of display screen respectively like this, can compromise the content collection of the leftmost side of paper and rightmost side to collection effect has been guaranteed.

Based on the content of the above embodiment, in this embodiment, the image acquisition device and the smart mobile device are independently and separately arranged; the image acquisition equipment comprises a base, a support and an image acquisition part which can be bent and rotated; the support is connected with the base, the bendable and rotatable image acquisition part is connected with the support, the image acquisition equipment is placed on the first plane through the base and the support, and the image acquisition equipment is used for acquiring images in the test paper answer area by facing the first plane through the bendable and rotatable image acquisition part;

In this embodiment, referring to fig. 10, different from the above embodiments, in this embodiment, the image capturing device 1 and the smart mobile device 2 are separately installed, and the image capturing device is connected to the smart mobile device through a data line; the image acquisition equipment 1 comprises a base Q, a support W and an image acquisition part E which can be bent and rotated; the support with the base is connected, bendable rotatory image acquisition portion with the leg joint, image acquisition equipment passes through the base with the support is placed on the first plane, through bendable rotatory image acquisition portion is just right the image in the first plane collection test paper answer area.

It can be understood that, in this embodiment, the image capturing apparatus 1 includes the base Q, the support W and the foldable and rotatable image capturing part E, so that, in practical use, the most suitable capturing position and angle can be found by moving the base, and adjusting the position or bending direction of the foldable and rotatable image capturing part E, thereby ensuring the capturing effect of the examination paper answering situation.

It can be appreciated that this split design is more flexible and more convenient to adjust.

Based on the content of the above embodiment, in the present embodiment, the preset threshold is 0.5 m.

In this embodiment, as described above, the distance between the collection diagram of the image collection device and the plane where the student test paper answer area is located is smaller than a preset threshold (for example, may be 0.5m), so as to ensure the collection effect of the answer content in the test paper answer area.

Based on the content of the above embodiment, in this embodiment, the smart mobile device is a mobile phone, a laptop, or a PAD.

In this embodiment, the smart mobile device may adopt an existing mobile phone, a laptop, or a PAD, so as to expand the usable range of the data acquisition device.

Based on the content of the above embodiment, in this embodiment, the first data interface and the second data interface are USB interfaces.

In this embodiment, it should be noted that, since the data transmission of the USB interface is stable, it is preferable to use the USB interface for data transmission.

The utility model discloses another embodiment provides a data acquisition system, include: an intelligent computer and at least one data acquisition device as described in the above embodiments;

the intelligent mobile device in the data acquisition device is used for transmitting the acquired images to the intelligent computer in a WIFI or mobile network (2G communication module, 3G communication module, 4G communication module or 5G communication module) mode.

It can be understood that, the intelligence computer is used as the receiving equipment who collects each student's paper answer condition that each data acquisition device gathered for the mr of paper marking can utilize this intelligence computer to go on the paper marking, thereby improved paper marking efficiency and paper marking experience, the data acquisition system who adopts this embodiment to provide, can be in the very first time that the student answered the question with student's answer condition collection, thereby make paper marking work have no time delay, the while has also saved and has collected the paper examination paper then carried out the heavy work of scanning one by one among the prior art.

In this embodiment, fig. 11 and 12 illustrate a specific application scenario, during an examination of a student, the data acquisition device provided in this embodiment may be placed on an examination desktop, the student may trigger the image acquisition device 1 to acquire the examination paper answer condition after answering the examination paper, after the acquisition is finished, the image acquisition device 1 may send the acquired image to the first data interface 23 of the intelligent mobile device 2 through the second data interface a, and accordingly, the intelligent mobile device 2 receives the image through the first data interface 23, and displays the received image on the display screen 22 through the processor 21, thereby implementing the conversion from the paper examination paper to the electronic examination paper, and providing a basis for subsequent electronic examination paper.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A data acquisition device, which is used for on-line data acquisition of the answer condition of a single student test paper, comprises: the intelligent mobile device comprises an intelligent mobile device, a support for supporting the intelligent mobile device to stand on a first plane, and an image acquisition device connected with the intelligent mobile device, wherein an image acquisition surface of the image acquisition device is over against the first plane, and the distance between the image acquisition device and the first plane is smaller than a preset threshold value; the first plane is a plane where an answer area of a single student test paper is located;

2. The data acquisition device according to claim 1, wherein the image acquisition equipment is integrated with the smart mobile device and the image acquisition equipment is a single camera;

3. The data acquisition device of claim 2, wherein the image acquisition apparatus is disposed in a central region of a side of the display screen remote from the first plane.

4. The data acquisition device according to claim 1, wherein the image acquisition equipment is integrated with the smart mobile device and is of a plate-shaped structure;

5. The data acquisition device according to claim 4, wherein an NMOS linear array image sensor is arranged in the image acquisition equipment with a plate-shaped structure, and the NMOS linear array image sensor is of a rectangular structure.

6. The data acquisition device according to claim 4, wherein a plurality of CCD image sensors are arranged in the image acquisition equipment of the plate-shaped structure, and the plurality of CCD image sensors are uniformly arranged.

7. The data acquisition device according to claim 1, wherein the image acquisition equipment is integrated with the smart mobile device and the image acquisition equipment is of a strip-shaped structure;

8. The data acquisition device of claim 7, wherein the connector is a rotatable connector; the image acquisition equipment with the strip-shaped structure rotates 0-90 degrees in a preset space through the rotatable connecting piece.

9. The data acquisition device as claimed in claim 7, wherein the number of the image acquisition devices of the strip-shaped structure is two, the two image acquisition devices are respectively arranged on two opposite sides of the display screen, which are in a non-parallel state with respect to the first plane, in a foldable manner, and are respectively located at the end positions of the two opposite sides; one end of each of the two image acquisition devices is connected with the end positions of the two sides through a connecting piece.

10. The data acquisition device according to claim 1, wherein the image acquisition equipment and the intelligent mobile equipment are independently arranged in a split manner; the image acquisition equipment comprises a base, a support and an image acquisition part which can be bent and rotated; the support is connected with the base, the bendable and rotatable image acquisition part is connected with the support, the image acquisition equipment is placed on the first plane through the base and the support, and the image acquisition equipment is used for acquiring images in the test paper answer area by facing the first plane through the bendable and rotatable image acquisition part;

11. The data acquisition device according to claim 1, wherein the preset threshold is 0.5 m.

12. The data acquisition device according to claim 1, wherein the smart mobile device is a mobile phone or a laptop or a PAD.

13. The data acquisition device of claim 1, wherein the first data interface and the second data interface are USB interfaces.

14. A data acquisition system, comprising: a smart computer and at least one data acquisition device as claimed in any one of claims 1 to 13;