CN108255344A - Question searching method and system applied to handheld photographing equipment and handheld photographing equipment - Google Patents

Abstract

A question searching method and system applied to a handheld photographing device and the handheld photographing device comprise the following steps: the handheld photographing device selects a target dominant frame corresponding to the subject type to which the test question to be photographed belongs from a plurality of dominant frames, wherein each dominant frame in the plurality of dominant frames corresponds to a different subject type, and each dominant frame has a different shape; projecting a target dominant frame on a projection surface where a test question to be shot is located by the handheld shooting equipment; the handheld photographing equipment shoots an internal area of a corresponding shape of the target dominant frame through the camera to obtain a target test question image; the handheld photographing equipment sends a target test question image to the electronic equipment so that the electronic equipment outputs the target test question image and sends a test question to be tested in the target test question image to the server to obtain target answer information; and the target answer information corresponds to the test questions to be detected. By implementing the embodiment of the invention, the problem searching efficiency of the user can be improved by simplifying the step of searching the problems.

Description

Method and system for searching questions applied to handheld camera equipment and handheld camera equipment

technical field

The invention relates to the technical field of electronic equipment, in particular to a method and system for searching questions applied to a hand-held camera device and the hand-held camera device.

Background technique

When students encounter unanswerable test questions during homework, they usually ask the teacher for advice, but if the teacher is not around, students will search for unanswerable test questions through the mobile phone or learning tablet search application software to obtain corresponding answer information.

Usually, students need to go through multiple steps to complete the entire search process when using the search application software, for example, unlock the mobile phone or learning tablet—find the search application software—start the search application software—start the camera function in the search application software— Focus on taking pictures and get the test question image—confirm the test question image and upload the test question image to the server—the server identifies the test question in the test question image and retrieves the matching answer information—the server feeds the answer information back to the question search application software. It can be seen that the above-mentioned search question process is cumbersome, which will reduce the efficiency of student search questions.

Contents of the invention

The embodiment of the invention discloses a question searching method and system applied to a handheld camera device and the handheld camera device, which can improve the efficiency of question search.

The first aspect of the embodiment of the present invention discloses a method for searching questions applied to a handheld camera device, the method comprising:

The handheld camera device selects a target dominant frame corresponding to the subject type of the test question to be photographed from a plurality of dominant frames, wherein each dominant frame in the plurality of dominant frames corresponds to a different subject type, and each of said explicit boxes has a different shape;

The handheld camera device projects the target explicit frame on the projection surface where the test questions to be photographed are located;

The handheld photographing device obtains the target test question image by capturing the internal area of the corresponding shape of the target explicit frame through the camera;

The handheld camera device sends the target test question image to the electronic device, so that the electronic device outputs the target test question image and sends the target test question image to the server to obtain the target answer information; wherein The target answer information corresponds to the test question to be tested.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, after the handheld camera device projects the target explicit frame on the projection surface where the test question is to be photographed, and after the handheld Before the photographing device captures the internal area corresponding to the shape of the target explicit frame through the camera to obtain the target test question image, the method also includes:

The handheld camera device detects adjustment parameters input for the target explicit frame;

The handheld camera device adjusts the projection angle of projecting the target explicit frame according to the adjustment parameters to obtain the current size of the target explicit frame, so that the target explicit frame is projected on the projected frame with the current size. face;

The handheld photographing device executes the step of capturing the internal area corresponding to the target explicit frame by the camera to obtain the target test question image; wherein, the internal area corresponding to the target explicit frame includes the target explicit frame The inner area corresponding to the current size of the .

As an optional implementation manner, in the first aspect of the embodiment of the present invention, before the handheld camera device selects a target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, the Methods also include:

The handheld camera device turns on the selection mode and outputs prompt information for prompting the user to select the dominant frame;

The handheld camera device receives the user's selection operation and executes the selection of the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames according to the selection operation, and the selection operation is used to indicate The subject type to which the test question to be photographed belongs.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, after the handheld camera device sends the target test question image to the electronic device, the method further includes:

The handheld camera device detects whether the pressure sensor corresponding to the shooting key in the handheld camera device has an indication within a preset period of time;

If not, the handheld camera device disables the projection function so that the handheld camera device stops projecting the target explicit frame on the projection surface.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the method further includes:

If the hand-held camera device detects that the pressure sensor has an indication within the preset time period, the hand-held camera device obtains the pressure value of the shooting key according to the indication of the pressure sensor;

The handheld camera device detects a preset pressure threshold range to which the pressure value belongs;

If the pressure value belongs to the first preset pressure threshold range, the hand-held camera device executes the selection mode and outputs prompt information for prompting the user to select a dominant frame;

If the pressure value belongs to the second preset pressure threshold range, the handheld photographing device executes the step of obtaining the target test question image by capturing the internal area corresponding to the shape of the target explicit frame through the camera; wherein, the first Any pressure value in the preset pressure threshold range is smaller than any pressure value in the second preset pressure threshold range.

The second aspect of the embodiment of the present invention discloses a handheld camera device, the handheld camera device includes:

A selection unit is used to select a target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, wherein each explicit frame in the plurality of explicit frames corresponds to a different subject type, and each of said explicit boxes has a different shape;

A focus positioning unit, configured to project the target explicit frame on the projection surface where the test questions to be photographed are located;

A hand-held hardware camera unit, used to capture the internal area of the corresponding shape of the target explicit frame through the camera to obtain the target test question image;

A sending unit, configured to send the target test question image to the electronic device, so that the electronic device outputs the target test question image and sends the test questions to be detected in the target test question image to the server to obtain target answer information; wherein, the The target answer information corresponds to the test question to be tested.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the handheld camera device further includes:

The first detection unit is configured to detect the adjustment parameters input for the target explicit frame after the focus positioning unit projects the target explicit frame on the projection surface where the test question to be photographed is located;

An adjustment unit, configured to project a projection angle of the target explicit frame according to the adjustment parameter to obtain the current size of the target explicit frame, so that the target explicit frame is projected on the projection surface with the current size superior;

The handheld hardware photographing unit is specifically used to photograph the target through the camera after the adjustment unit projects the projection angle of the target explicit frame according to the adjustment parameters to obtain the current size of the target explicit frame The internal area of the shape corresponding to the explicit frame obtains the target test question image; wherein, the internal area of the shape corresponding to the explicit target frame includes the internal area corresponding to the current size of the explicit target frame.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the handheld camera device further includes:

The opening unit is used to open the selection mode and output the prompt information for prompting the user to select the explicit frame before the selection unit selects the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames ;

a receiving unit, configured to receive a user's selection operation;

The selecting unit is specifically configured to, after the receiving unit receives the user's selection operation, select a target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames according to the selection operation; wherein, The selection operation is used to indicate the subject type of the test question to be photographed.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the handheld camera device further includes:

The second detection unit is used to detect whether the pressure sensor corresponding to the shooting key in the handheld camera device has an indication within a preset period of time after the sending unit sends the target test question image to the electronic device;

A closing unit, configured to close the projection function so that the handheld camera device stops at the position of The target explicit frame is projected on the projection surface.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the handheld camera device further includes:

An acquisition unit, configured to obtain an indication of the presence of the photographing key according to the indication of the pressure sensor after the second detecting unit detects that the pressure sensor corresponding to the photographing key in the hand-held photographing device exists within a preset time period. pressure value;

a third detection unit, configured to detect a preset pressure threshold range to which the pressure value belongs;

The opening unit is specifically configured to, after the third detection unit detects that the pressure value belongs to the first preset pressure threshold range, open the selection mode and output prompt information for prompting the user to select a dominant frame;

The handheld hardware photographing unit is specifically configured to, after the third detecting unit detects that the pressure value belongs to the second preset pressure threshold range, obtain by photographing the inner area corresponding to the shape of the dominant frame of the target through the camera. Target test question image; wherein, any pressure value in the first preset pressure threshold range is smaller than any pressure value in the second preset pressure threshold range.

The third aspect of the embodiment of the present invention discloses a question search system applied to a hand-held camera device. The question search system applied to a hand-held camera device includes a hand-held camera device, an electronic device, and a server;

The handheld photographing device is the handheld photographing device described in the second aspect of the embodiment of the present invention;

The electronic device includes: a first transceiver unit, a display unit and a test question detection unit;

The server includes: a second transceiver unit and a data matching unit;

Wherein, the first transceiving unit is configured to receive the target test question image sent by the handheld camera device;

The display unit is configured to output and display the image of the target test question, and output and display the target answer information corresponding to the test question to be detected sent by the second transceiving unit in the server received by the first transceiving unit;

The test question detection unit is configured to detect a test question to be detected from the target test question image according to a user operation after the display unit outputs and displays the target test question image, and the test question to be detected includes one of the test question images Or multiple test questions to be tested;

The first transceiving unit is further configured to send the test questions to be detected in the test question image to the second transceiving unit of the server;

The second transceiving unit is configured to receive the test questions to be tested in the target test question image uploaded by the first transceiving unit of the electronic device;

The data matching unit is used to search for target answer information corresponding to the test questions to be tested;

The second transceiving unit is further configured to feed back the target answer information to the first transceiving unit of the electronic device.

The fourth aspect of the embodiment of the present invention discloses a handheld camera device, including:

a memory storing executable program code;

a processor coupled to the memory;

The processor invokes the executable program code stored in the memory to execute the question searching method applied to the handheld camera device disclosed in the first aspect of the embodiments of the present invention.

The fifth aspect of the embodiment of the present invention discloses a computer-readable storage medium, which stores a computer program, wherein the computer program causes the computer to execute the method for searching questions applied to a handheld camera device disclosed in the first aspect of the embodiment of the present invention.

The sixth aspect of the embodiment of the present invention discloses a computer program product. When the computer program product runs on a computer, the computer executes the method for searching questions disclosed in the first aspect and applied to a handheld camera device.

Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

In the embodiment of the present invention, the handheld camera device (for example, a search pen) can select a plurality of explicit frames preset by the handheld camera device (it should be noted that the shape of each explicit frame in the plurality of explicit frames is the same as Other dominant frames are different, and each dominant frame corresponds to a different test subject) to select the target dominant frame corresponding to the test question to be photographed, so as to improve the recognition efficiency of the test question to be photographed. Furthermore, the handheld camera device can project the target explicit frame on the projection surface where the test questions are located, so that the handheld camera device can capture the inner area of the target explicit frame through the camera in the handheld camera device to obtain the target test question image. The handheld camera device can also send the target test question image to the electronic device (for example, a tablet computer), so that the electronic device outputs the target test question image and sends the test question to be detected in the test question image to the server to obtain the target answer sent by the server information, wherein the target answer information corresponds to the test questions to be tested. To sum up, implementing the embodiments of the present invention can improve the user's search efficiency by simplifying the steps of searching questions.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is an application schematic diagram of a search question system applied to a handheld camera device disclosed in an embodiment of the present invention;

Fig. 2 is a schematic flow diagram of a method for searching questions applied to a handheld camera device disclosed in an embodiment of the present invention;

Fig. 3 is a schematic flowchart of another method for searching questions applied to a handheld camera device disclosed in an embodiment of the present invention;

Fig. 4 is a schematic diagram of interaction between a handheld camera device and an electronic device disclosed in an embodiment of the present invention;

Fig. 5 is a schematic diagram of a user interface for outputting answer information of test questions by an electronic device disclosed in an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a handheld camera device disclosed in an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of another handheld camera device disclosed in an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of another handheld camera device disclosed in an embodiment of the present invention;

Fig. 9 is a schematic structural diagram of a question-searching system applied to a handheld camera device disclosed in an embodiment of the present invention;

Fig. 10 is a partial structural block diagram of a search pen of a handheld camera device disclosed by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "include" and "have" and any variations thereof in the embodiments of the present invention and drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

The embodiment of the present invention discloses a method and system for searching questions applied to a handheld camera device and the handheld camera device, which can simplify the steps of searching questions and improve the efficiency of user search questions. Each will be described in detail below.

Please refer to FIG. 1 . FIG. 1 is an application schematic diagram of a question searching system applied to a handheld camera device disclosed in an embodiment of the present invention. As shown in Figure 1, the system for searching questions applied to handheld camera devices includes electronic devices (for example, tablet computers, tutoring machines, smart phones, etc.), servers and handheld camera devices (for example, search pens, scanning pens, etc.). Wherein, the handheld camera device can send the image of the target test question to the electronic device after capturing the image of the target test question, so that the electronic device can intuitively display the image of the target test question for the user to click on the test question to be tested. The device acquires the test questions to be detected in the image of the target test questions, and sends the target answer information of the test questions to be detected to the electronic device after the retrieval of the target answer information of the test questions to be detected is completed. It can be seen that the question search system applied to the handheld camera device shown in Figure 1 can obtain the target test question image through the handheld camera device and send it to the electronic device, and after the user clicks the test question to be tested from the target test question image displayed on the electronic device, the The server retrieves the target answer information of the test question to be tested and sends the target answer information back to the electronic device for the user to check, which simplifies the steps of searching questions and improves the efficiency of searching questions.

Embodiment one

Please refer to FIG. 2 . FIG. 2 is a schematic flowchart of a method for searching questions applied to a handheld camera device disclosed in an embodiment of the present invention. As shown in Figure 2, the method for searching questions applied to a handheld camera device may include the following steps:

101. The handheld camera device selects a target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, wherein each of the multiple explicit frames corresponds to a different subject type, and each Explicit boxes have different shapes.

In the embodiment of the present invention, the shape of the dominant frame may be a regular shape such as a rectangle or a square, or may be an irregular shape, which is not limited in this embodiment of the present invention. Among them, the shape of the dominant frame corresponds to the subject type (for example, Chinese corresponds to a rectangular dominant frame, and mathematics corresponds to a circular dominant frame). Therefore, by performing step 101, the target explicit frame corresponding to the subject type of the test question to be photographed can be selected from multiple explicit frames, which simplifies the question search step and improves the overall efficiency of photographing and searching questions.

102. The handheld camera device projects a target explicit frame on the projection surface where the test questions to be photographed are located.

In the embodiment of the present invention, after the target explicit frame corresponding to the subject type of the test question to be photographed is selected from a plurality of dominant frames in step 101, the handheld camera device can project the target display frame on the projection surface where the test question to be photographed is located. sex box. Wherein, the handheld camera device can be provided with a projection device, and the projection device can project laser light. Therefore, when the handheld camera device projects laser light on the projection surface where the test question is located, not only can the target explicit frame be displayed on the projection surface, so that the user can Manually move the handheld camera device to change the projection position of the target explicit frame on the projection surface. The handheld camera device projects laser light on the projection surface where the test questions are located, and can also be used for autofocus when the camera performs shooting operations. Therefore, executing step 102 can project a target explicit frame on the projection surface where the test question is to be photographed by emitting laser light and automatically focus, improving the question search efficiency of using a hand-held camera device to take pictures and search questions.

103. The handheld camera device captures the inner area corresponding to the shape of the target explicit frame through the camera to obtain the image of the target test question.

In the embodiment of the present invention, the shooting direction of the camera of the hand-held camera device is the same as the projection direction of the hand-held camera device on the projection surface where the test questions to be photographed are located, and the hand-held camera device is within the frame of the target dominant frame projected on the test questions to be photographed. The area is the shooting area of the camera, so the target test question image captured by the camera is the frame area of the target explicit frame. Therefore, by performing step 103, the target test question image can be obtained by capturing the inner area corresponding to the shape of the target explicit frame by the camera, which reduces the manufacturing difficulty of the handheld camera device, thereby reducing the production cost of the handheld camera device.

104. The handheld camera device sends the target test question image to the electronic device, so that the electronic device outputs the target test question image and sends the target test question image to the server to obtain the target answer information; wherein, the target answer information corresponds to the test question to be detected .

In the embodiment of the present invention, after the electronic device receives the target test question image sent by the handheld camera device, the electronic device can output the target test question image and send the test questions to be detected in the target test question image to the server (it should be noted that the electronic device The image of the corresponding part of the test question to be detected can be sent to the server, and the test question to be detected in the target test question image can also be identified and sent to the server in text form, which is not limited in the embodiment of the present invention), wherein the test question to be detected is the user from The test questions selected in the target test question image include one or more test questions in the target test question image. Furthermore, the server can perform test item data matching on the test questions to be tested, so as to obtain target answer information corresponding to the test questions to be tested, and transmit the target answer information to the electronic device for the user to view. Therefore, executing step 104 can reduce the probability of being disturbed by prompt information (for example, WeChat messages) when directly using an electronic device (for example, a tablet computer or a mobile phone) to take pictures and search for questions by sending the target test question image to the electronic device, thereby improving User search efficiency.

It can be seen that, implementing the method described in Figure 2, the hand-held camera device can select the target explicit frame corresponding to the subject type of the test question to be photographed from multiple explicit frames, which simplifies the search step and improves the overall photographic search problem. Efficiency; In addition, the hand-held camera device can also emit laser light to project a target explicit frame and auto-focus on the projection surface where the test questions are to be photographed, which improves the efficiency of using the hand-held camera device to take pictures and search questions; in addition, the hand-held camera The device can also obtain the image of the target test question by shooting the inner area corresponding to the shape of the target explicit frame through the camera, which reduces the difficulty of manufacturing the handheld camera device, thereby reducing the production cost of the handheld camera device; Sending the image of the target test question reduces the probability of being interfered by prompt information (for example, WeChat message) when directly using an electronic device (for example, a tablet computer or a mobile phone) to search for a question by taking a photo, thereby improving the efficiency of the user's question search. Therefore, implementing the method described in FIG. 2 can simplify the steps of searching questions and improve the user's searching efficiency.

Embodiment two

Please refer to FIG. 3 . FIG. 3 is a schematic flowchart of another method for searching questions applied to a handheld camera device disclosed in an embodiment of the present invention. As shown in Figure 3, the method for searching questions applied to a handheld camera device may include the following steps:

201. The handheld camera device turns on the selection mode and outputs prompt information for prompting the user to select a dominant frame.

In the embodiment of the present invention, the handheld camera device may enable the selection mode after detecting the user's selection operation and output prompt information (for example, voice prompt information) for prompting the user to select the dominant frame. In addition, the handheld camera device can be provided with a plurality of buttons for selecting a dominant frame, each button corresponds to a different shape of the dominant frame, and each dominant frame corresponds to a different subject; There is a dial in the shape of an explicit frame (it should be noted that the dial is embedded in a handheld camera device), and the shape of the explicit frame corresponds to the paragraphs on the dial, that is, every time the user dials the dial, the projection surface The shape of the dominant frame will also change to the shape of the dominant frame corresponding to the segment of the current trackwheel, which is not limited in this embodiment of the present invention. Therefore, executing step 201 can improve the efficiency and accuracy of the user's search for questions by enabling the selection mode and outputting prompt information for prompting the user to select an explicit frame.

202. The handheld camera device receives the user's selection operation, and selects a target explicit frame corresponding to the subject type of the test question to be photographed from multiple explicit frames according to the selection operation, wherein each explicit frame in the multiple explicit frames The frames correspond to different subject types, and each explicit frame has a different shape, and the selection operation is used to indicate the subject type of the test question to be photographed.

203. The handheld camera device projects a target explicit frame on the projection surface where the test questions to be photographed are located.

204. The hand-held camera device detects the adjustment parameters input for the explicit frame of the target.

In the embodiment of the present invention, after the target explicit frame is projected on the projection surface where the test question is to be photographed in step 203, the handheld camera device can detect the adjustment parameters input for the target explicit frame. Among them, if the shape of the target explicit frame is a rectangle, the adjustment parameters include the length, width and area of the target explicit frame; if the shape of the target explicit frame is circular, the adjustment parameters include the target explicit frame The diameter of the box and the area of the target explicit box. For example, if the target explicit frame corresponding to the math test question is a rectangle, the user can set the adjustment button on the handheld camera device (it should be noted that the adjustment button can include a length extension key, a length shortening key, and a width extension key) and the width shortening key) to adjust the length and width of the target explicit frame to form corresponding adjustment parameters. Therefore, executing step 204 can adaptively adjust the size of the target explicit frame by detecting the adjustment parameters input for the target explicit frame, so as to capture a more complete image of the target test question, thereby improving the accuracy of the user's search questions and search results. problem efficiency.

205. The handheld camera device adjusts the projection angle of the projected target explicit frame according to the adjustment parameters to obtain the current size of the target explicit frame, so that the target explicit frame is projected on the projection surface with the current size.

206. The hand-held camera device captures the internal area of the corresponding shape of the target explicit frame through the camera to obtain the target test question image; wherein, the internal area of the corresponding shape of the target explicit frame includes the internal area corresponding to the current size of the target explicit frame.

207. The handheld camera device sends the target test question image to the electronic device, so that the electronic device outputs the target test question image and sends the target test question image to the server to obtain the target answer information; wherein, the target answer information corresponds to the test question to be detected .

208. The handheld camera device detects within a preset time period whether the pressure sensor corresponding to the shooting key in the handheld camera device has an indication, if yes, execute step 209, and if not, execute step 211.

209. The hand-held photographing device obtains the pressure value of the photographing key according to the indication of the pressure sensor.

In the embodiment of the present invention, the hand-held camera device can obtain the pressure on the camera key according to the indication of the pressure sensor, so as to distinguish whether the user needs to use the hand-held camera device to focus or shoot, or the user accidentally touches the camera key. Therefore, performing step 209 can obtain the pressure value of the shooting key according to the reading of the pressure sensor, so as to make a correct judgment on the user's operation, thereby improving the usability of the handheld camera device.

210. The handheld camera device detects the preset pressure threshold range to which the pressure value belongs. If the pressure value belongs to the first preset pressure threshold range, perform step 201; if the pressure value belongs to the second preset pressure threshold range, perform step 207.

In the embodiment of the present invention, any pressure value in the second preset pressure threshold range is greater than any pressure value in the first preset pressure threshold range.

211. Turn off the projection function of the handheld camera device so that the handheld camera device stops projecting the target explicit frame on the projection surface.

It can be seen that, implementing the method described in Figure 3, the hand-held camera device can hold the camera device and can select the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, which simplifies the step of searching questions and improves the efficiency of the test. The overall efficiency of taking photos and searching questions; in addition, the handheld camera device can also project a target explicit frame and auto-focus on the projection surface where the test questions are to be shot, which improves the efficiency of using the handheld camera device to take photos and search questions; in addition, the handheld camera The device can also obtain the image of the target test question by shooting the inner area corresponding to the shape of the target explicit frame through the camera, which reduces the difficulty of manufacturing the handheld camera device, thereby reducing the production cost of the handheld camera device; Sending images of target test questions reduces the probability of being disturbed by prompt information (for example, WeChat messages) when directly using electronic devices (for example, tablet computers or mobile phones) to take pictures and search questions, thereby improving the user's search efficiency; The device can also improve the efficiency and accuracy of the user's search questions by turning on the selection mode and outputting prompt information for prompting the user to select the dominant frame; The adjustment parameters of the target are adaptively adjusted to the size of the target explicit frame in order to capture a more complete image of the target test question, thereby improving the accuracy and efficiency of the user's search question; in addition, the handheld camera device can also use the pressure sensor to The pressure value of the shooting key is obtained from the indication value, so as to make a correct judgment on the user's operation, thereby improving the usability of the handheld camera device. Therefore, implementing the method described in FIG. 3 can further simplify the steps of searching questions and improve the user's searching efficiency.

Please refer to FIG. 4 . FIG. 4 is a schematic diagram of interaction between a handheld camera device and an electronic device disclosed in an embodiment of the present invention. As shown in FIG. 4 , the handheld camera device can display an explicit frame on the projection surface where the test questions are located, and the explicit frame contains multiple test questions. The handheld camera device can also send the test question image to the electronic device after capturing the test question in the display frame (that is, the hand-held camera device has obtained the test question image), and then the electronic device displays the test question image for the user to click on the target to wait. Test questions. It can be seen that the interaction diagram between the handheld camera device and the electronic device shown in Figure 4 can improve the efficiency and accuracy of taking pictures and searching questions through the interaction between the handheld camera device and the electronic device; The interactive diagram of the electronic device can also improve the recognition efficiency of the test questions to be tested by using the target explicit frames corresponding to the test questions of different subjects, thereby improving the efficiency of the user's search for questions.

Please refer to FIG. 5 . FIG. 5 is a schematic diagram of a user interface of an electronic device outputting answer information of a test question disclosed in an embodiment of the present invention. As shown in FIG. 5 , a target test question image is displayed on the screen of the electronic device, and the target test question image includes 4 test questions. The "question 2" framed by a similar rectangular border as shown in Figure 5 is the selected test question to be tested, and the small rectangular window output by the electronic device next to "question 2" is the target answer information. The color in the frame is different from the color of the rest of the image of the target test question, and the target answer information at least includes answer analysis, train of thought inspiration and generalized comments corresponding to the test question to be tested.

Embodiment Three

Please refer to FIG. 6 . FIG. 6 is a schematic structural diagram of a handheld camera device disclosed in an embodiment of the present invention. As shown in Figure 6, the handheld camera device may include:

The selection unit 601 is configured to select a target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, wherein each explicit frame in the plurality of explicit frames corresponds to a different subject type, and each The explicit boxes have different shapes.

In the embodiment of the present invention, the shape of the dominant frame may be a regular shape such as a rectangle or a square, or may be an irregular shape, which is not limited in this embodiment of the present invention. Among them, the shape of the dominant frame corresponds to the subject type (for example, Chinese corresponds to a rectangular dominant frame, and mathematics corresponds to a circular dominant frame). Therefore, the execution selection unit 601 can select the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, which simplifies the step of searching questions and improves the overall efficiency of taking photos and searching questions.

In the embodiment of the present invention, after the selecting unit 601 selects the target dominant frame corresponding to the subject type of the test question to be photographed from the plurality of dominant frames, the focus positioning unit 602 is triggered to start.

The focus positioning unit 602 is configured to project a target explicit frame on the projection surface where the test questions to be photographed are located.

In the embodiment of the present invention, after the selection unit 601 selects the target dominant frame corresponding to the subject type of the test question to be photographed from a plurality of dominant frames, the focus positioning unit 602 can project a Target explicit box. Among them, the handheld camera device can be provided with a projection device that can project laser light. Therefore, when the laser light is projected on the projection surface where the test questions are located, not only can the target explicit frame be displayed on the projection surface, so that the user can move it manually. The camera is held in hand to change the projection position of the target explicit frame on the projection surface, and the focus positioning unit 602 projects laser light on the projection surface where the test questions are located, which can also be used for automatic focusing of the camera when performing shooting operations. Therefore, the execution focus positioning unit 602 can project a target explicit frame on the projection surface where the test questions are to be photographed and automatically focus, which improves the use of hand-held camera equipment for photographing and searching questions. search efficiency.

In the embodiment of the present invention, after the focus positioning unit 602 projects a target explicit frame on the projection surface where the test question is to be photographed, trigger the handheld hardware photographing unit 603 to start.

The handheld hardware camera unit 603 is used to capture the inner area corresponding to the shape of the target explicit frame through the camera to obtain the image of the target test question.

In the embodiment of the present invention, the shooting direction of the camera of the hand-held camera device is the same as the projection direction of the hand-held camera device on the projection surface where the test questions to be photographed are located, and the hand-held camera device is within the frame of the target dominant frame projected on the test questions to be photographed. The area is the shooting area of the camera, so the target test question image captured by the camera is the frame area of the target explicit frame. Therefore, the hand-held hardware camera unit 603 can capture the target test question image through the camera to capture the inner area corresponding to the shape of the target explicit frame, which reduces the manufacturing difficulty of the hand-held camera device, thereby reducing the production cost of the hand-held camera device.

In the embodiment of the present invention, after the hand-held hardware photographing unit 603 captures the inner area corresponding to the shape of the target explicit frame through the camera to obtain the image of the target test question, the trigger sending unit 604 starts.

The sending unit 604 is configured to send the target test question image to the electronic device, so that the electronic device outputs the target test question image and sends the test question in the target test question image to the server to obtain target answer information; wherein, the target answer information is related to the test question to be detected correspond.

In the embodiment of the present invention, after the electronic device receives the target test question image sent by the handheld camera device, the electronic device can output the target test question image and send the test questions to be detected in the target test question image to the server (it should be noted that the electronic device The image part including the test questions to be detected can be sent to the server, and the test questions to be detected in the target test question image can also be identified and sent to the server in text form, which is not limited in the embodiment of the present invention), wherein the test questions to be detected are the user from the target The selected test question in the test question image. Furthermore, the server can perform test item data matching on the test questions to be tested, so as to obtain target answer information corresponding to the test questions to be tested, and transmit the target answer information to the electronic device for the user to view. Therefore, the execution sending unit 604 can reduce the probability of being disturbed by prompt information (for example, WeChat messages) when directly using an electronic device (for example, a tablet computer or a mobile phone) to take pictures and search for questions by sending the target test question image to the electronic device, thereby improving improved user search efficiency.

It can be seen that in implementing the handheld camera device described in FIG. 6 , the selection unit 601 can select the target explicit frame corresponding to the subject type of the test question to be photographed from among multiple explicit frames, which simplifies the step of searching questions and improves the overall performance. Efficiency of taking photos and searching questions; the focus positioning unit 602 can project a target explicit frame and auto-focus on the projection surface where the test questions are to be photographed by projecting a target explicit frame and autofocus on the projection surface where the test questions to be photographed, which improves the use of hand-held camera equipment. The efficiency of searching for questions by taking photos; the handheld hardware camera unit 603 can obtain the target test question image by shooting the inner area corresponding to the shape of the target explicit frame through the camera, which reduces the manufacturing difficulty of the handheld camera device, thereby reducing the production cost of the handheld camera device; The sending unit 604 can reduce the probability of being disturbed by prompt information (for example, WeChat messages) when directly using an electronic device (for example, a tablet computer or a mobile phone) to take pictures and search for questions by sending the target test question image to the electronic device, thereby improving the user's confidence. search efficiency. Therefore, the implementation of the handheld camera device described in FIG. 6 can simplify the steps of searching questions and improve the efficiency of searching questions for users.

Embodiment Four

Please refer to FIG. 7 . FIG. 7 is a schematic structural diagram of another handheld camera device disclosed in an embodiment of the present invention. Wherein, the handheld camera device shown in FIG. 7 is obtained by optimizing the handheld camera device shown in FIG. 6 . Compared with the handheld camera device shown in Figure 6, the handheld camera device shown in Figure 7 may further include:

The first detection unit 605 is used to detect the input of the target explicit frame after the focus positioning unit 602 projects the target explicit frame on the projection surface where the test question is to be photographed. adjustment parameters.

In the embodiment of the present invention, after the focus positioning unit 602 projects the target dominant frame on the projection surface where the test question is to be photographed, the first detection unit 605 can detect the The tuning parameter for the explicit box input. Among them, if the shape of the target explicit frame is a rectangle, the adjustment parameters include the length, width and area of the target explicit frame; if the shape of the target explicit frame is circular, the adjustment parameters include the target explicit frame The diameter of the box and the area of the target explicit box. For example, if the target explicit frame corresponding to the math test question is a rectangle, the user can set the adjustment button (not shown in Figure 7) on the handheld camera device (it should be noted that the adjustment button can include a length extension key) , Length Shortening Key, Width Extending Key, and Width Shortening Key) to adjust the length and width of the target explicit frame to form corresponding adjustment parameters. Therefore, the execution of the first detection unit 605 can adaptively adjust the size of the target explicit frame by detecting the adjustment parameters input for the target explicit frame, so as to capture a more complete image of the target test question, thereby improving the accuracy of the user's search questions. rate and search efficiency.

In the embodiment of the present invention, after the first detection unit 605 detects the adjustment parameter input for the target explicit frame, the trigger adjustment unit 606 starts.

The adjustment unit 606 is configured to adjust the projection angle of projecting the explicit frame of the target according to the adjustment parameter to obtain the current size of the explicit frame of the target, so that the explicit frame of the target is projected on the projection surface with the current size.

In the embodiment of the present invention, after the adjustment unit 606 adjusts the projection angle of the projected target explicit frame according to the adjustment parameters to obtain the current size of the target explicit frame, trigger the handheld hardware camera unit 603 to start.

The hand-held hardware camera unit 603 is specifically used to obtain the target test questions by photographing the inner area of the corresponding shape of the target explicit frame through the camera after the adjustment unit 606 adjusts the projection angle of the projected target explicit frame according to the adjustment parameters to obtain the current size of the target explicit frame An image; wherein, the inner area of the shape corresponding to the target explicit frame includes the inner area corresponding to the current size of the target explicit frame.

The opening unit 607 is used to open the selection mode and output the prompt information for prompting the user to select the dominant frame before the selection unit 601 selects the target dominant frame corresponding to the subject type of the test question to be photographed from a plurality of dominant frames .

In the embodiment of the present invention, after the enabling unit 607 activates the selection mode and outputs prompt information for prompting the user to select the dominant frame, the trigger receiving unit 608 is activated.

The receiving unit 608 is configured to receive a user's selection operation.

In the embodiment of the present invention, after the receiving unit 608 receives the user's selection operation, the trigger selection unit 601 starts.

The selection unit 601 is specifically used to select the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames according to the selection operation after the receiving unit 608 receives the user's selection operation; wherein, the selection operation is used for Indicates the subject type of the test questions to be photographed.

In the embodiment of the present invention, the selection unit 601 may enable the selection mode after detecting the user's selection operation and output prompt information (for example, voice prompt information) for prompting the user to select the dominant frame. In addition, the handheld camera device can be provided with a plurality of buttons for selecting a dominant frame, each button corresponds to a different shape of the dominant frame, and each dominant frame corresponds to a different subject; A dial (not shown in Figure 7) in the shape of an explicit frame (it should be noted that the dial is embedded in a handheld camera device), and the shape of the explicit frame corresponds to the paragraphs on the dial, that is, every time the user dials Once the dial is turned, the shape of the dominant frame on the projection surface will also change to the shape of the dominant frame corresponding to the segment of the current dial, which is not limited in this embodiment of the present invention. Therefore, the execution selection unit 601 can improve the efficiency and accuracy of the user's search for questions by enabling the selection mode and outputting prompt information for prompting the user to select an explicit frame.

It can be seen that in implementing the handheld camera device described in FIG. 7 , the selection unit 601 can select the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, which simplifies the step of searching questions and improves the overall performance. Efficiency of taking photos and searching questions; the focus positioning unit 602 can project a target explicit frame and auto-focus on the projection surface where the test questions are to be photographed by projecting a target explicit frame and autofocus on the projection surface where the test questions to be photographed, which improves the use of hand-held camera equipment. The efficiency of searching for questions by taking photos; the handheld hardware camera unit 603 can obtain the target test question image by shooting the inner area corresponding to the shape of the target explicit frame through the camera, which reduces the manufacturing difficulty of the handheld camera device, thereby reducing the production cost of the handheld camera device; The sending unit 604 can reduce the probability of being disturbed by prompt information (for example, WeChat messages) when directly using an electronic device (for example, a tablet computer or a mobile phone) to take pictures and search for questions by sending the target test question image to the electronic device, thereby improving the user's confidence. Search efficiency; the selection unit 601 can open the selection mode and output the prompt information for prompting the user to select the dominant frame, so as to improve the efficiency of the user's search and the accuracy of the search; the first detection unit 605 can detect the target by detecting The adjustment parameters of the explicit frame input, adaptively adjust the size of the target explicit frame, so as to capture a more complete image of the target test question, thereby improving the accuracy and efficiency of the user's search question. Therefore, implementing the handheld camera device described in FIG. 7 can further simplify the steps of searching questions and improve the user's searching efficiency.

Embodiment five

Please refer to FIG. 8 . FIG. 8 is a schematic structural diagram of another handheld camera device disclosed in an embodiment of the present invention. Wherein, the handheld camera device shown in FIG. 8 is obtained by optimizing the handheld camera device shown in FIG. 7 . Compared with the handheld camera device shown in Figure 7, the handheld camera device shown in Figure 8 may include:

The second detection unit 609 is configured to detect whether the pressure sensor corresponding to the shooting key in the handheld camera device has an indication within a preset period of time after the sending unit 604 sends the target test question image to the electronic device.

The closing unit 610 is configured to close the projection function so that the handheld camera device stops projecting images on the projection surface after the second detection unit 609 detects that the pressure sensor corresponding to the shooting key in the handheld camera device does not have an indication within a preset period of time. Target explicit box.

The obtaining unit 611 is configured to obtain the pressure value of the shooting key according to the reading of the pressure sensor after the second detecting unit 609 detects that the pressure sensor corresponding to the shooting key in the hand-held camera device exists within a preset time period.

In the embodiment of the present invention, the acquisition unit 611 can obtain the pressure on the shooting key according to the indication of the pressure sensor, so as to distinguish whether the user needs to use the handheld camera device to focus 1, take a picture, or the user accidentally touches the shooting key. Therefore, the execution obtaining unit 611 can obtain the pressure value of the shooting key according to the reading of the pressure sensor, so as to make a correct judgment on the user's operation, thereby improving the usability of the handheld camera device.

In the embodiment of the present invention, after the obtaining unit 611 obtains the pressure value of the shooting key according to the reading of the pressure sensor, the third detection unit 612 is triggered to start.

The third detection unit 612 is configured to detect the preset pressure threshold range to which the pressure value belongs.

The enabling unit 607 is specifically configured to, after the third detection unit 612 detects that the pressure value belongs to the first preset pressure threshold range, enable the selection mode and output prompt information for prompting the user to select the dominant frame.

The handheld hardware camera unit 603 is specifically used to obtain the target test question image by capturing the inner area corresponding to the shape of the target explicit frame through the camera after the third detection unit 612 detects that the pressure value belongs to the second preset pressure threshold range; wherein, the first Any pressure value in the preset pressure threshold range is smaller than any pressure value in the second preset pressure threshold range.

It can be seen that in implementing the handheld camera device described in FIG. 8 , the selection unit 601 can select the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, which simplifies the step of searching questions and improves the overall performance. Efficiency of taking photos and searching questions; the focus positioning unit 602 can project a target explicit frame and auto-focus on the projection surface where the test questions are to be photographed by projecting a target explicit frame and autofocus on the projection surface where the test questions to be photographed, which improves the use of hand-held camera equipment. The efficiency of searching for questions by taking photos; the handheld hardware camera unit 603 can obtain the target test question image by shooting the inner area corresponding to the shape of the target explicit frame through the camera, which reduces the manufacturing difficulty of the handheld camera device, thereby reducing the production cost of the handheld camera device; The sending unit 604 can reduce the probability of being disturbed by prompt information (for example, WeChat messages) when directly using an electronic device (for example, a tablet computer or a mobile phone) to take pictures and search for questions by sending the target test question image to the electronic device, thereby improving the user's confidence. Search efficiency; the selection unit 601 can open the selection mode and output the prompt information for prompting the user to select the dominant frame, so as to improve the efficiency of the user's search and the accuracy of the search; the first detection unit 605 can detect the target by detecting The adjustment parameters input by the explicit frame are used to adaptively adjust the size of the target explicit frame, so that the image of the target test question can be captured more completely, thereby improving the accuracy and efficiency of the user's search for questions; the acquisition unit 611 can The reading of the sensor obtains the pressure value of the shooting key, so as to make a correct judgment on the user's operation, thereby improving the usability of the handheld camera device. Therefore, the implementation of the handheld camera device described in FIG. 8 can further simplify the steps of searching questions and improve the user's searching efficiency.

Embodiment six

Please refer to FIG. 9 . FIG. 9 is a schematic structural diagram of a question searching system applied to a handheld camera device disclosed in an embodiment of the present invention. As shown in Figure 9, the question search system applied to a handheld camera device may include a handheld camera device 901, an electronic device 902, and a server 903;

The handheld camera device 901 is the handheld camera device 901 described in Embodiment 3 to Embodiment 5;

The electronic device 902 includes: a first transceiver unit 9021, a display unit 9022 and a test question detection unit 9023;

The server 903 includes: a second transceiver unit 9031 and a data matching unit 9032 .

Wherein, the first transceiver unit 9021 is configured to receive the target test question image sent by the handheld camera device 901 .

The display unit 9022 is configured to output and display the image of the target test question, and output and display the target answer information corresponding to the test question to be tested and received by the first transceiver unit 9021 and sent by the second transceiver unit 9031 in the server 903 .

The test question detection unit 9023 is configured to detect the test questions to be detected from the target test question image according to user operations after the display unit 9022 outputs and displays the target test question image, and the test questions to be detected include one or more test questions to be detected in the target test question image.

The first transceiving unit 9021 is further configured to send the test questions to be detected in the target test question image to the second transceiving unit 9031 of the server.

The second transceiving unit 9031 is configured to receive the test questions to be detected in the target test question image uploaded by the first transceiving unit 9021 of the electronic device 902 .

A search unit 9032, configured to search for target answer information corresponding to the test questions to be tested.

The second transceiving unit 9031 is further configured to feed back target answer information to the first transceiving unit 9021 of the electronic device 902 .

It can be seen that the implementation of the question search system applied to the handheld camera device described in FIG. 9 can improve the efficiency and accuracy of camera search questions through the interaction among the handheld camera device 901 , the electronic device 902 and the server 903 .

For more descriptions about the electronic device 902 and the server 903, reference may be made to the detailed descriptions in the method embodiment and the embodiment of the handheld camera device 901, which will not be repeated here.

Embodiment seven

The handheld photographing device provided in the embodiment of the present invention may include any handheld photographing device such as a search pen, a scanning pen, and a photographing pen. Taking the search pen as an example, FIG. 10 shows a block diagram of a partial structure of the search pen provided by the embodiment of the present invention. Referring to FIG. 10 , the search pen may include: an input unit 1010 , a memory 1020 , a photographing unit 1030 , a processor 1040 , a wireless communication module 1050 , and a power supply 1060 and other components. Those skilled in the art can understand that the structure of the search pen shown in FIG. 10 does not constitute a limitation to the search pen, and may include more or less components than shown in the figure, or combine some components, or arrange different components.

The following is a specific introduction to each component of the search pen in conjunction with FIG. 10:

The input unit 1010 may be used to receive input number or character information, and generate key signal input related to user settings and function control of the search pen. Specifically, the input unit 1010 may include, but is not limited to, physical buttons 1011 (such as a camera button, a switch button) set on the search pen, etc., which can be used to detect the user's pressing operation on it (such as the user using a finger, holding a touch device Wait for the operation of any suitable object or accessory on the physical button 1011), and drive the corresponding connection device according to the preset program. The input unit 1010 may further include a pressure sensor 1012 capable of detecting a pressure value acting on the physical key 1011 and sending the detected pressure value to the processor 1040 .

The memory 1020 can be used to store executable program codes, and the processor 1040 executes various functional applications and data processing of the search pen by running the executable program codes stored in the memory 1020, especially executing the related functions of the first or second embodiment. A method for searching questions applied to a handheld camera device. The memory 1020 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, at least one application program required by a function (such as a camera function, focus positioning function, etc.); The data created by the use (such as test question images, voice data, etc.) and so on. In addition, the memory 1020 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The photographing unit 1030 may include, but not limited to, an external camera 1031 , a focus positioning module 1032 and an angle correction module 1033 . Specifically, the external camera 1031 can be rotated by 180 degrees, previewed through the visible frame, and is driven by a corresponding program to take a picture to obtain an image of the test question, or output the image of the test question to the memory 1020 . The focus positioning module 1032 can include a laser focus module, an ultraviolet focus module, etc. The focus positioning module 1032 can automatically focus, position or perform information projection, or can adjust the focus and position of the external camera 1031 according to the movement track of the search pen. The angle correction module 1033 can adjust the camera angle of the external camera 1031 according to parameters or user operations.

The search pen can also include a gyroscope 1034 or a gravity sensor 1035. The focus positioning module 1032 can adjust the focus and positioning according to the rotational angular velocity detected by the gyroscope 1034 or the gravitational acceleration detected by the gravity sensor 1035, and the angle correction module 1033 can be detected according to the gyroscope 1034. The rotation angular velocity or the gravitational acceleration detected by the gravity sensor 1035 adjusts the camera angle.

The processor 1040 is the control center of the search pen, and uses various interfaces and lines to connect various parts of the entire search pen, by running or executing software programs and/or modules stored in the memory 1020, and calling data stored in the memory 1020 , execute various functions of the search pen and process data, so as to monitor the search pen as a whole. Optionally, the processor 1040 may include one or more processing units; preferably, the processor 1040 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, application programs, etc., and the modem The tuner processor mainly handles wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 1040 .

The wireless communication module 1050 can be used to send the test question image, receive the control command of the external device, etc., especially, after receiving the control command of the external device, send it to the processor 1040, and be processed by the processor 1040. The wireless communication module 1050 may include, for example, a wireless fidelity (wireless fidelity, WiFi) module and the like. Among them, WiFi is a short-distance wireless transmission technology. The search pen can be used to send test questions images and receive control commands from external devices through the WiFi module. It provides users with wireless broadband Internet access.

The search pen can also include a power supply 1060 (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the processor 1040 through the power management system, so that functions such as charging, discharging and power consumption management can be realized through the power management system.

The search pen can also include a stylus tip 1070. The stylus tip 1070 can include, but not limited to, any stylus tip that can be used on a touch screen/touch screen, such as a rubber soft tip, a carbon fiber hard tip, and a pressure stretchable metal tip. The stylus tip 1070 can act on a touch screen/touch screen of an external device to input signals to the external device.

The search pen may also include at least one sensor 1080, such as an image sensor, light sensor, motion sensor, biometric sensor, and other sensors. Specifically, an image sensor may convert an optical image into an electronic signal. The light sensor can adjust the brightness of the dominant frame in the camera unit 1030 according to the brightness of the ambient light. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the posture of the search pen (such as vertical placement, horizontal placement) ), vibration recognition-related functions (such as tapping), etc.; as for the search pen, it can also be equipped with other sensors such as a gyroscope, an infrared sensor, etc., so I won’t go into details here.

The search pen may also include audio circuitry 1090, a speaker 1091, and a microphone 1092 may provide an audio interface between the user and the search pen. The audio circuit 1090 can transmit the electrical signal converted from the received audio data to the speaker 1091, and the speaker 1091 converts it into an audio signal for output; After being received, it is converted into audio data, and then the audio data is processed by the output processor 1040, and then sent to, for example, an electronic device through the wireless communication module 1050, or the audio data is output to the memory 1020 for further processing.

Although not shown, the search pen may further include a charging interface through which the power source 1060 of the search pen may be charged. The charging interface may include a Micro USB interface, a USB Type C interface, and the like. The search pen may also include a switch indicator light, a charging indicator light, etc., which will not be described in detail here.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium includes read-only Memory (Read-Only Memory, ROM), Random Access Memory (Random Access Memory, RAM), Programmable Read-Only Memory (Programmable Read-only Memory, PROM), Erasable Programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), One-time Programmable Read-Only Memory (OTPROM), Electronically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CompactDisc Read -Only Memory, CD-ROM) or other optical disk storage, magnetic disk storage, tape storage, or any other computer-readable medium that can be used to carry or store data.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand; The technical solutions described in each embodiment are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the application.

Claims (11)

1. A method for searching questions applied to handheld camera equipment, characterized in that the method comprises: The handheld camera device selects a target dominant frame corresponding to the subject type of the test question to be photographed from a plurality of dominant frames, wherein each dominant frame in the plurality of dominant frames corresponds to a different subject type, and each of said explicit boxes has a different shape; The handheld camera device projects the target explicit frame on the projection surface where the test questions to be photographed are located; The handheld photographing device obtains the target test question image by capturing the internal area of the corresponding shape of the target explicit frame through the camera; The handheld camera device sends the target test question image to the electronic device, so that the electronic device outputs the target test question image and sends the target test question image to the server to obtain the target answer information; wherein The target answer information corresponds to the test question to be tested. 2. The method according to claim 1, characterized in that, after the handheld camera device projects the target explicit frame on the projection surface where the test question to be photographed is located, and after the handheld camera device passes through the camera Before capturing the internal area of the shape corresponding to the target explicit frame to obtain the target test item image, the method also includes: The handheld camera device detects adjustment parameters input for the target explicit frame; The handheld camera device adjusts the projection angle of projecting the target explicit frame according to the adjustment parameters to obtain the current size of the target explicit frame, so that the target explicit frame is projected on the projected frame with the current size. face; The handheld photographing device executes the step of capturing the internal area corresponding to the target explicit frame by the camera to obtain the target test question image; wherein, the internal area corresponding to the target explicit frame includes the target explicit frame The inner area corresponding to the current size of the . 3. The method according to claim 1 or 2, wherein, before the hand-held photographing device selects the target explicit frame corresponding to the subject type belonging to the test question to be photographed from a plurality of explicit frames, the method further includes include: The handheld camera device turns on the selection mode and outputs prompt information for prompting the user to select the dominant frame; The handheld camera device receives the user's selection operation and executes the selection of the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames according to the selection operation, and the selection operation is used to indicate The subject type to which the test question to be photographed belongs. 4. The method according to claim 3, wherein, after the handheld camera device sends the target test question image to the electronic device, the method further comprises: The handheld camera device detects whether the pressure sensor corresponding to the shooting key in the handheld camera device has an indication within a preset period of time; If not, the handheld camera device disables the projection function so that the handheld camera device stops projecting the target explicit frame on the projection surface. 5. method according to claim 4, is characterized in that, described method also comprises: If the hand-held camera device detects that the pressure sensor has an indication within the preset time period, the hand-held camera device obtains the pressure value of the shooting key according to the indication of the pressure sensor; The handheld camera device detects a preset pressure threshold range to which the pressure value belongs; If the pressure value belongs to the first preset pressure threshold range, the hand-held camera device executes the selection mode and outputs prompt information for prompting the user to select a dominant frame; If the pressure value belongs to the second preset pressure threshold range, the handheld photographing device executes the step of obtaining the target test question image by capturing the internal area corresponding to the shape of the target explicit frame through the camera; wherein, the first Any pressure value in the preset pressure threshold range is smaller than any pressure value in the second preset pressure threshold range. 6. A handheld camera device, characterized in that the handheld camera device comprises: A selection unit is used to select a target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames, wherein each explicit frame in the plurality of explicit frames corresponds to a different subject type, and each of said explicit boxes has a different shape; A focus positioning unit, configured to project the target explicit frame on the projection surface where the test questions to be photographed are located; A hand-held hardware camera unit, used to capture the internal area of the corresponding shape of the target explicit frame through the camera to obtain the target test question image; A sending unit, configured to send the target test question image to the electronic device, so that the electronic device outputs the target test question image and sends the test questions to be detected in the target test question image to the server to obtain target answer information; wherein, the The target answer information corresponds to the test question to be tested. 7. The handheld camera device according to claim 6, wherein the handheld camera device further comprises: The first detection unit is configured to detect the adjustment parameters input for the target explicit frame after the focus positioning unit projects the target explicit frame on the projection surface where the test question to be photographed is located; An adjustment unit, configured to adjust the projection angle of projecting the target explicit frame according to the adjustment parameter to obtain the current size of the target explicit frame, so that the target explicit frame is projected on the projected frame with the current size face; The handheld hardware photographing unit is specifically configured to take pictures of the target through the camera after the adjustment unit adjusts the projection angle of the target explicit frame according to the adjustment parameters to obtain the current size of the target explicit frame. The internal area of the shape corresponding to the explicit target frame obtains the target test question image; wherein, the internal area of the shape corresponding to the explicit target frame includes the internal area corresponding to the current size of the explicit target frame. 8. The handheld camera device according to claim 6 or 7, wherein the handheld camera device further comprises: The opening unit is used to open the selection mode and output the prompt information for prompting the user to select the explicit frame before the selection unit selects the target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames ; a receiving unit, configured to receive a user's selection operation; The selecting unit is specifically configured to, after the receiving unit receives the user's selection operation, select a target explicit frame corresponding to the subject type of the test question to be photographed from a plurality of explicit frames according to the selection operation; wherein, The selection operation is used to indicate the subject type of the test question to be photographed. 9. The handheld camera device according to claim 8, wherein the handheld camera device further comprises: The second detection unit is used to detect whether the pressure sensor corresponding to the shooting key in the handheld camera device has an indication within a preset period of time after the sending unit sends the target test question image to the electronic device; A closing unit, configured to close the projection function so that the handheld camera device stops at the position of The target explicit frame is projected on the projection surface. 10. The handheld camera device according to claim 9, wherein the handheld camera device further comprises: An acquisition unit, configured to obtain an indication of the presence of the photographing key according to the indication of the pressure sensor after the second detecting unit detects that the pressure sensor corresponding to the photographing key in the hand-held photographing device exists within a preset time period. pressure value; a third detection unit, configured to detect a preset pressure threshold range to which the pressure value belongs; The opening unit is specifically configured to, after the third detection unit detects that the pressure value belongs to the first preset pressure threshold range, open the selection mode and output prompt information for prompting the user to select a dominant frame; The handheld hardware photographing unit is specifically configured to, after the third detecting unit detects that the pressure value belongs to the second preset pressure threshold range, obtain by photographing the inner area corresponding to the shape of the dominant frame of the target through the camera. Target test question image; wherein, any pressure value in the first preset pressure threshold range is smaller than any pressure value in the second preset pressure threshold range. 11. A question-searching system applied to a handheld photographing device, characterized in that, the subject-searching system applied to a handheld photographing device comprises a handheld photographing device, an electronic device and a server: The handheld photographing device is the handheld photographing device according to any one of claims 6-10; The electronic device includes: a first transceiver unit, a display unit and a test question detection unit; The server includes: a second transceiver unit and a data matching unit; Wherein, the first transceiving unit is configured to receive the target test question image sent by the handheld camera device; The display unit is configured to output and display the image of the target test question, and output and display the target answer information corresponding to the test question to be detected sent by the second transceiving unit in the server received by the first transceiving unit; The test question detection unit is configured to detect a test question to be detected from the target test question image according to a user operation after the display unit outputs and displays the target test question image, and the test question to be detected includes one of the test question images Or multiple test questions to be tested; The first transceiving unit is further configured to send the target test question in the test question image to the second transceiving unit of the server; The second transceiving unit is configured to receive the test question in the test question image uploaded by the first transceiving unit of the electronic device; The data matching unit is used to match the target answer information corresponding to the test questions to be tested; The second transceiving unit is further configured to feed back the target answer information to the first transceiving unit of the electronic device.