Writing posture warning method, device and electronic equipment

Abstract

The present invention provides a writing posture warning method, device and electronic device, which calculate a first proportion of short strokes and a second proportion of short intervals in the student's homework page through the student's homework page and page writing information, and when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of short strokes and the second proportion of short intervals in the homework page, the homework page is determined as a writing abnormality page; the first proportion of short strokes and the second proportion of short intervals in the student's homework page obtained from the student's homework page and page writing information can be used to judge whether the student's writing posture is abnormal; the entire writing posture judgment process does not require human participation and does not require the use of a lot of physical equipment, which greatly improves user experience.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to a writing posture warning method, device and electronic equipment. Background Art

[0002] At present, incorrect writing posture is the main cause of myopia, strabismus, spinal deformity, cervical spine disease, etc. in adolescents. Incorrect writing posture mainly includes incorrect pen holding posture and incorrect sitting posture, which leads to the person and pen being too close. At the same time, due to incorrect pen holding, the written content will be unclear, the handwriting will be deformed, and the hand will rub the ink. It is difficult to judge the writing posture of teenagers during the writing process in traditional writing methods. Generally, manual observation is required, and the judgment effect is very low. For incorrect sitting posture, it is generally completed through ergonomic chairs or corrective cushions. However, these two methods require too much equipment and have a poor user experience. Summary of the invention

[0003] To solve the above problems, an object of the embodiments of the present invention is to provide a writing posture warning method, device and electronic device.

[0004] In a first aspect, an embodiment of the present invention provides a writing posture warning method, comprising:

[0005] Obtaining the student's homework page and page writing information of the homework page;

[0006] According to the page writing information of the homework page, a first proportion of short strokes and a second proportion of short intervals in the homework page of the student are calculated; wherein the short strokes are used to represent strokes whose writing time is less than a writing time threshold; and the short intervals are used to represent the time interval between two adjacent strokes whose writing time is less than a time length threshold;

[0007] When it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of the short strokes and the second proportion of the short intervals on the homework page, the homework page is determined as a writing abnormality page.

[0008] In a second aspect, an embodiment of the present invention further provides a writing posture warning device, comprising:

[0009] An acquisition module, used to acquire the student's homework page and page writing information of the homework page;

[0010] A calculation module, for calculating a first proportion of short strokes and a second proportion of short intervals in the homework page of the student according to the page writing information of the homework page; wherein the short strokes are used to represent strokes whose writing time is less than a writing time threshold; and the short intervals are used to represent a time interval between two adjacent strokes whose writing time is less than a time length threshold;

[0011] A determination module is used to determine the homework page as an abnormal writing page when it is determined that the student uses an abnormal writing posture to write the homework page based on a first proportion of the short strokes and a second proportion of the short intervals on the homework page.

[0012] In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the first aspect are executed.

[0013] In a fourth aspect, an embodiment of the present invention further provides an electronic device, comprising a memory, a processor and one or more programs, wherein the one or more programs are stored in the memory and configured so that the processor executes the steps of the method described in the first aspect above.

[0014] In the solutions provided in the first to fourth aspects of the embodiments of the present invention, a first proportion of short strokes and a second proportion of short intervals in the student's homework page are calculated through the student's homework page and page writing information, and when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of short strokes and the second proportion of short intervals on the homework page, the homework page is determined to be an abnormal writing page. Compared with the method in the related art that requires manual observation or the use of ergonomic chairs or corrective cushions to judge whether the writing posture is abnormal, the first proportion of short strokes and the second proportion of short intervals in the student's homework page obtained by the student's homework page and page writing information can be used to judge whether the student's writing posture is abnormal; the entire writing posture judgment process does not require manual participation and does not require the use of a lot of physical equipment, which greatly improves the user experience.

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A flowchart of a writing posture warning method provided by Embodiment 1 of the present invention is shown;

[0018] Figure 2 A schematic diagram showing the structure of a writing posture warning device provided by Embodiment 2 of the present invention is shown;

[0019] Figure 3 A schematic structural diagram of an electronic device provided by Embodiment 3 of the present invention is shown. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] At present, incorrect writing posture is the main cause of myopia, strabismus, spinal deformity, cervical spine disease, etc. in adolescents. Incorrect writing posture mainly includes incorrect pen holding posture and incorrect sitting posture, which leads to the person and pen being too close. At the same time, due to incorrect pen holding, the written content will be unclear, the handwriting will be deformed, and the hand will rub the ink. It is difficult to judge the writing posture of teenagers during the writing process in traditional writing methods. Generally, manual observation is required, and the judgment effect is very low. For incorrect sitting posture, it is generally completed through ergonomic chairs or corrective cushions. However, these two methods require too much equipment and have a poor user experience.

[0024] Based on this, each embodiment of the present application proposes a writing posture warning method, device and electronic device, which calculates a first proportion of short strokes and a second proportion of short intervals in the student's homework page through the student's homework page and page writing information, and when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of short strokes and the second proportion of short intervals on the homework page, the homework page is determined to be an abnormal writing page, and whether the student's writing posture is abnormal can be judged by using the first proportion of short strokes and the second proportion of short intervals in the student's homework page obtained from the student's homework page and page writing information; the entire writing posture judgment process does not require human participation and does not require the use of a lot of physical equipment, which greatly improves the user experience.

[0025] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Example 1

[0027] The execution subject of the writing posture warning method proposed in this embodiment is a server.

[0028] See also Figure 1 The flowchart of a writing posture warning method is shown in FIG. 1 . This embodiment proposes a writing posture warning method, which includes the following specific steps:

[0029] Step 100: Obtain the student's homework page and the page writing information of the homework page.

[0030] In the above step 100, the student uses a dot matrix pen that can interact with the server to write the homework page; the dot matrix pen records the strokes of the student's homework page, the writing time of the strokes, the number of strokes written, the time interval between two adjacent strokes, and the number of time intervals between two adjacent strokes, and the dot matrix pen uploads the recorded strokes of the student's homework page, the writing time of the strokes, the number of strokes written, the time interval between two adjacent strokes, and the number of time intervals between two adjacent strokes as page writing information to the server; and after the student finishes writing the homework page, the camera installed on the dot matrix pen is used to take a photo of the homework page, and the photographed homework page is sent to the server. In this way, the server can obtain the student's homework page and the page writing information of the homework page.

[0031] The homework page carries a page identifier and a student identifier.

[0032] The page identifier is used to uniquely identify a job page.

[0033] The student ID is used to uniquely identify the student who writes on the homework page.

[0034] Then, the server can determine which homework page is to be identified for abnormal writing posture according to the page identifier carried on the homework page; and determine which student's abnormal writing posture is to be identified according to the student identifier carried on the homework page.

[0035] In the process of students writing homework with dot matrix pens, images of the positions where the strokes written by the students on the homework page are placed are obtained at a set acquisition frequency.

[0036] The frequency with which the dot matrix pen obtains writing information on the page can generally be set manually according to the student's proficiency in answering questions, such as once every 1 millisecond or once every 10 milliseconds.

[0037] The page writing information includes, but is not limited to: stroke pressure, coordinate range of each stroke, writing time of each stroke, number of strokes, time interval between two adjacent strokes, and number of time intervals between two adjacent strokes. Through these characteristic values, the writing process can be divided into the smallest unit, so as to achieve the effect of accurate analysis.

[0038] In a normal writing posture, students write in the correct posture, write relatively smooth strokes, and the length and interval of the strokes should be relatively even. However, when students write in an abnormal posture, they may hold the pen too low, the pen shaft rotates during writing, or the pen position slips during writing. These situations will cause the camera positioning on the dot matrix pen to deviate, and the camera shooting area will be blocked, so that the information of the pen placement position cannot be collected normally. Therefore, the input handwriting and stroke information will change due to interruption or abnormal positioning.

[0039] Therefore, the page writing information related to abnormal writing posture that may be generated during the writing process of students is mainly short strokes and short intervals. When the data of short strokes and short intervals do not conform to the normal state, it can reflect the problem of abnormal writing posture.

[0040] Step 102: Calculate a first proportion of short strokes and a second proportion of short intervals in the student's homework page based on the page writing information of the homework page; wherein the short strokes are used to represent strokes whose writing duration is less than a writing duration threshold; and the short intervals are used to represent a time interval between two adjacent strokes whose interval time is less than a time length threshold.

[0041] In the above step 102, in order to calculate the first proportion of short strokes and the second proportion of short intervals in the homework page of the student, the following steps (1) to (4) may be performed:

[0042] (1) determining a stroke whose writing time is less than a writing time threshold as a short stroke, and counting the number of short strokes in the homework page;

[0043] (2) Calculate the first proportion of short strokes in the homework page of the student by the following formula:

[0044] The first proportion = the number of short strokes / the number of written strokes

[0045] (3) determining a time interval between two adjacent strokes that is shorter than the time length threshold as a short interval, and counting the number of the short intervals in the job page;

[0046] (4) The second proportion of short intervals in the homework page of the student is calculated by the following formula:

[0047] The second proportion = the number of the short intervals / the number of time intervals between two adjacent strokes.

[0048] In the above step (1), the writing time threshold can be pre-set in the server. The writing time threshold can be set to 10 milliseconds.

[0049] In the above step (3), the time length threshold can be pre-set in the server. The time length threshold can be set to 1 second.

[0050] Step 104: when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of the short strokes and the second proportion of the short intervals on the homework page, the homework page is determined as a writing abnormality page.

[0051] Specifically, in the above step 104, the following steps (1) to (2) may be performed:

[0052] (1) obtaining the number of all students, the first proportion of the short strokes calculated by all students, and the second proportion of the short intervals;

[0053] (2) using the calculated first proportions of the short strokes of all students and the number of students, calculating an average value and a standard deviation of the first proportions of all students;

[0054] (3) using the calculated second proportions of the short intervals of all students and the number of students, calculating the average value and the standard deviation of the second proportions of all students;

[0055] (4) When it is determined that the student uses an abnormal writing posture to write the homework page by using the first proportion of the short strokes and the second proportion of the short intervals of the student, and the calculated first proportion average, first proportion standard deviation, second proportion average and second proportion standard deviation of all students, the homework page is determined as a writing abnormality page.

[0056] In the above step (1), the server obtains the number of student identifiers by counting the number of student identifiers carried in all the obtained homework pages with the same page identifier, and determines the obtained number of student identifiers as the number of students for all students.

[0057] In the above step (2), the specific process of calculating the first proportion average and the first proportion standard deviation of all students using the calculated first proportion of the short strokes of all students and the number of students is prior art and will not be repeated here.

[0058] In the above step (3), the specific process of calculating the average second proportion and the second proportion standard deviation of all students using the calculated second proportion of the short intervals of all students and the number of students is a prior art and will not be repeated here.

[0059] In the above step (4), in order to determine whether the writing posture used by the student is abnormal, the following specific process can be performed:

[0060] When the first proportion of the short strokes of the student is greater than the sum of the first proportion average of all students and 1 / 2 of the first proportion standard deviation, and the second proportion of the short intervals of the student is less than the difference between the second proportion average of all students and 1 / 2 of the second proportion standard deviation, it is determined that the student uses an abnormal writing posture to write the homework page, and the homework page is determined as a writing abnormality page.

[0061] The server generates a writing abnormality mark, and sets the generated writing abnormality mark in the writing abnormality page.

[0062] After the student completes the homework, the server can store the homework page and record the completion date of the written page.

[0063] After determining the abnormal writing page, the writing posture warning method proposed in this embodiment can also perform the following steps (1) to (4) to determine the students with abnormal writing posture:

[0064] (1) when the time length since the last calculation of the student's page abnormality probability reaches a preset period length, obtaining the total number of pages written by the student and the number of pages with abnormal writing in the current period;

[0065] (2) calculating the page abnormality probability of the student using the number of the pages with abnormal writing and the total number of pages;

[0066] (3) when the page anomaly probabilities of all students are calculated, sorting all students in the order of page anomaly probabilities from large to small;

[0067] (4) Students who are ranked in front of a preset percentage of all the students after sorting are identified as students with abnormal writing postures.

[0068] In the above step (1), the preset cycle duration is pre-set in the server.

[0069] In one embodiment, the preset period duration can be set to any time length between 10 days and 60 days. Optionally, the preset period duration can be set to 30 days.

[0070] According to the completion date of the written pages, the written pages completed by the student in the current cycle are determined; and the number of written pages completed in the current cycle is counted, and the number of written pages completed in the current cycle obtained by counting is used as the total number of pages completed by the student in the current cycle. Then, the number of written pages carrying the writing abnormality mark among the written pages completed in the current cycle is counted, and the number of written pages carrying the writing abnormality mark obtained by counting is determined as the number of the writing abnormality pages.

[0071] In the above step (2), the page anomaly probability of the student is calculated by the following formula:

[0072] Page anomaly probability = number of pages with abnormal writing / total number of pages

[0073] In the above step (4), the preset percentage can be set to any value between 27% and 33%. Preferably, the preset percentage can be set to 30%. That is, the first 30% of the students in the ranking can be determined as students with abnormal writing posture.

[0074] The specific process of identifying students with abnormal writing posture is explained through the following examples:

[0075] If there are 10 students in total: student 1, student 2, student 3, student 4, student 5, student 6, student 7, student 8, student 9 and student 10. Sorting all the students in the order of page abnormality probability from large to small, the ranking result is: student 2, student 8, student 4, student 1, student 10, student 3, student 5, student 9, student 6 and student 7. If the top 30% of the students in the students after sorting are determined as students with abnormal writing posture, then student 2, student 8 and student 4 are determined as students with abnormal writing posture.

[0076] Students who are identified as having abnormal writing posture will receive a prompt message from the server, and the server will also feed back the information to administrators (teachers and parents) to help correct the students' writing posture. The information is pushed to administrators to better supervise and monitor students and achieve better writing posture correction results.

[0077] From the above discussion, it can be seen that the writing posture warning method proposed in this embodiment records the homework pages with abnormal writing postures by obtaining and analyzing the short strokes and short intervals at the pen-falling positions of the strokes written by students on the homework pages. The results of long-term recording of abnormal writing postures are summarized, and comprehensive prompts are given for multiple abnormal writing posture alarm data, so that students and managers can be warned and understand abnormal writing postures. Under the premise of not affecting students' daily homework habits, reminders and optimizations are carried out in stages in a way that does not interfere with students' normal writing, thereby improving students' writing postures and optimizing the correction effect.

[0078] To summarize, the present embodiment proposes a writing posture warning method, which calculates a first proportion of short strokes and a second proportion of short intervals in the student's homework page through the student's homework page and page writing information, and when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of short strokes and the second proportion of short intervals on the homework page, the homework page is determined as an abnormal writing page. Compared with the method in the related art that requires manual observation or the use of ergonomic chairs or corrective cushions to judge whether the writing posture is abnormal, the first proportion of short strokes and the second proportion of short intervals in the student's homework page obtained by the student's homework page and page writing information can be used to judge whether the student's writing posture is abnormal; the entire writing posture judgment process does not require manual participation and does not require the use of a lot of physical equipment, which greatly improves the user experience.

[0079] Example 2

[0080] This embodiment provides a writing posture warning device, which is used to execute a writing posture warning method provided in the above-mentioned embodiment 1.

[0081] See also Figure 2 The structural diagram of a writing posture warning device is shown in FIG. 1 . This embodiment provides a writing posture warning device, comprising:

[0082] An acquisition module 200 is used to acquire a student's homework page and page writing information of the homework page;

[0083] The calculation module 202 is used to calculate a first proportion of short strokes and a second proportion of short intervals in the homework page of the student according to the page writing information of the homework page; wherein the short strokes are used to represent strokes whose writing time is less than a writing time threshold; and the short intervals are used to represent a time interval between two adjacent strokes whose writing time is less than a time length threshold;

[0084] The determination module 204 is used to determine the homework page as a writing abnormality page when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of the short strokes and the second proportion of the short intervals on the homework page.

[0085] The page writing information includes: the strokes written by the student on the homework page, the writing time of the strokes, the number of strokes written, the time interval between two adjacent strokes written, and the number of time intervals between two adjacent strokes written.

[0086] The calculation module 202 is specifically used for:

[0087] Determine the strokes whose writing duration is less than the writing duration threshold as short strokes, and count the number of short strokes in the job page;

[0088] The first proportion of short strokes in the homework page of the student is calculated by the following formula:

[0089] The first proportion = the number of short strokes / the number of written strokes

[0090] Determine a time interval between two adjacent strokes that is shorter than the time length threshold as a short interval, and count the number of the short intervals in the job page;

[0091] The second proportion of short intervals in the homework page of the student is calculated by the following formula:

[0092] The second proportion = the number of the short intervals / the number of time intervals between two adjacent strokes.

[0093] The determining module 204 is specifically configured to:

[0094] Obtain the number of all students, the first proportion of the short strokes calculated by all students, and the second proportion of the short intervals;

[0095] Using the calculated first proportions of the short strokes of all students and the number of students, calculate the average value and standard deviation of the first proportions of all students;

[0096] Using the calculated second proportions of the short intervals of all students and the number of students, calculate the average value and the standard deviation of the second proportions of all students;

[0097] When it is determined that the student uses an abnormal writing posture to write the homework page by using the first proportion of the short strokes and the second proportion of the short intervals of the student and the calculated average first proportion, first proportion standard deviation, second proportion average and second proportion standard deviation of all students, the homework page is determined as an abnormal writing page.

[0098] To summarize, the present embodiment proposes a writing posture warning method, which calculates a first proportion of short strokes and a second proportion of short intervals in the student's homework page through the student's homework page and page writing information, and when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of short strokes and the second proportion of short intervals on the homework page, the homework page is determined as an abnormal writing page. Compared with the method in the related art that requires manual observation or the use of ergonomic chairs or corrective cushions to judge whether the writing posture is abnormal, the first proportion of short strokes and the second proportion of short intervals in the student's homework page obtained by the student's homework page and page writing information can be used to judge whether the student's writing posture is abnormal; the entire writing posture judgment process does not require manual participation and does not require the use of a lot of physical equipment, which greatly improves the user experience.

[0099] Example 3

[0100] This embodiment provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the writing posture warning method described in the above embodiment 1 are executed. The specific implementation can be found in the method embodiment 1, which will not be described in detail here.

[0101] In addition, see Figure 3 The structural diagram of an electronic device shown in FIG. 1 is a schematic diagram of a structure of an electronic device. This embodiment further provides an electronic device, which includes a bus 51 , a processor 52 , a transceiver 53 , a bus interface 54 , a memory 55 and a user interface 56 . The electronic device includes a memory 55 .

[0102] In this embodiment, the electronic device further includes: one or more programs stored in the memory 55 and executable on the processor 52, and configured so that the processor executes the one or more programs to perform the following steps (1) to (3):

[0103] (1) Obtaining the student's homework page and page writing information of the homework page;

[0104] (2) calculating a first proportion of short strokes and a second proportion of short intervals in the student's homework page according to the page writing information of the homework page; wherein the short strokes are used to represent strokes whose writing time is less than a writing time threshold; and the short intervals are used to represent a time interval between two adjacent strokes whose writing time is less than a time length threshold;

[0105] (3) When it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of the short strokes and the second proportion of the short intervals on the homework page, the homework page is determined as a writing abnormality page.

[0106] The transceiver 53 is used to receive and send data under the control of the processor 52.

[0107] Among them, the bus architecture (represented by bus 51), bus 51 can include any number of interconnected buses and bridges, and bus 51 links various circuits including one or more processors represented by processor 52 and memory represented by memory 55. Bus 51 can also link various other circuits such as peripherals, voltage regulators, and power management circuits together, which are all well known in the art, so this embodiment will not be further described. Bus interface 54 provides an interface between bus 51 and transceiver 53. Transceiver 53 can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. For example: transceiver 53 receives external data from other devices. Transceiver 53 is used to send data processed by processor 52 to other devices. Depending on the nature of the computing system, a user interface 56, such as a keypad, display, speaker, microphone, joystick, can also be provided.

[0108] The processor 52 is responsible for managing the bus 51 and general processing, such as running a general operating system as mentioned above, while the memory 55 can be used to store data used by the processor 52 when performing operations.

[0109] Optionally, the processor 52 may be, but is not limited to: a central processing unit, a single-chip microcomputer, a microprocessor or a programmable logic device.

[0110] It can be understood that the memory 55 in the embodiment of the present invention can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct RAM bus random access memory (DRRAM). The memory 55 of the system and method described in the present embodiment is intended to include, but is not limited to, these and any other suitable types of memory.

[0111] In some implementations, the memory 55 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 551 and application programs 552 .

[0112] The operating system 551 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application 552 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. The program for implementing the method of the embodiment of the present invention can be included in the application 552.

[0113] In summary, the present embodiment proposes a computer-readable storage medium and an electronic device, which calculate a first proportion of short strokes and a second proportion of short intervals in the student's homework page through the student's homework page and page writing information, and when it is determined that the student uses an abnormal writing posture to write the homework page based on the first proportion of short strokes and the second proportion of short intervals in the homework page, the homework page is determined as an abnormal writing page. Compared with the method in the related art that requires manual observation or the use of ergonomic chairs or corrective cushions to judge whether the writing posture is abnormal, the first proportion of short strokes and the second proportion of short intervals in the student's homework page obtained by the student's homework page and page writing information can be used to judge whether the student's writing posture is abnormal; the entire writing posture judgment process does not require manual participation and does not require the use of a lot of physical equipment, which greatly improves the user experience.

[0114] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A writing posture warning method, characterized in that: include: Obtaining the student's homework page and page writing information of the homework page; The page writing information includes: the strokes written by the student on the homework page, the writing time of the strokes, the number of strokes written, the time interval between two adjacent strokes written, and the number of time intervals between two adjacent strokes written; According to the page writing information of the homework page, a first proportion of short strokes and a second proportion of short intervals in the homework page of the student are calculated; wherein the short strokes are used to represent strokes whose writing time is less than a writing time threshold; and the short intervals are used to represent the time interval between two adjacent strokes whose writing time is less than a time length threshold; When it is determined that the student uses an abnormal writing posture to write the homework page according to the first proportion of the short strokes and the second proportion of the short intervals on the homework page, the homework page is determined as a writing abnormality page; Calculating a first proportion of short strokes and a second proportion of short intervals in the homework page of the student according to the page writing information of the homework page, including: Determine the strokes whose writing duration is less than the writing duration threshold as short strokes, and count the number of short strokes in the job page; The first proportion of short strokes in the homework page of the student is calculated by the following formula: The first proportion = the number of short strokes / the number of written strokes Determine a time interval between two adjacent strokes that is shorter than the time length threshold as a short interval, and count the number of the short intervals in the job page; The second proportion of short intervals in the homework page of the student is calculated by the following formula: The second proportion = the number of the short intervals / the number of time intervals between two adjacent strokes.

2. The method according to claim 1, characterized in that When it is determined that the student uses an abnormal writing posture to write the homework page according to the first proportion of the short strokes and the second proportion of the short intervals on the homework page, determining the homework page as a writing abnormality page includes: Obtain the number of all students, the first proportion of the short strokes calculated by all students, and the second proportion of the short intervals; Using the calculated first proportions of the short strokes of all students and the number of students, calculate the average value and standard deviation of the first proportions of all students; Using the calculated second proportions of the short intervals of all students and the number of students, calculate the average value and the standard deviation of the second proportions of all students; When it is determined that the student uses an abnormal writing posture to write the homework page by using the first proportion of the short strokes and the second proportion of the short intervals of the student and the calculated average first proportion, first proportion standard deviation, second proportion average and second proportion standard deviation of all students, the homework page is determined as an abnormal writing page.

3. The method according to claim 2, characterized in that When it is determined that the student uses an abnormal writing posture to write the homework page by using the first proportion of the short strokes of the student and the second proportion of the short intervals, and the calculated first proportion average, first proportion standard deviation, second proportion average, and second proportion standard deviation of all students, the homework page is determined as a writing abnormality page, including: When the first proportion of the short strokes of the student is greater than the sum of the first proportion average of all students and 1 / 2 of the first proportion standard deviation, and the second proportion of the short intervals of the student is less than the difference between the second proportion average of all students and 1 / 2 of the second proportion standard deviation, it is determined that the student uses an abnormal writing posture to write the homework page, and the homework page is determined as a writing abnormality page.

4. The method according to claim 1, characterized in that: Also includes: When the time length since the last calculation of the student's page abnormality probability reaches the preset period length, the total number of pages written by the student and the number of pages with abnormal writing in the current period are obtained; Calculating the probability of page abnormality of the student using the number of the pages with abnormal writing and the total number of pages; When the page anomaly probabilities of all students are calculated, the students among all the students are sorted in descending order of the page anomaly probabilities; After sorting, the students who rank in front of a preset percentage of all the students are determined as students with abnormal writing postures.

5. A writing posture warning device, characterized in that: include: An acquisition module, used to acquire the student's homework page and page writing information of the homework page; The page writing information includes: the strokes written by the student on the homework page, the writing time of the strokes, the number of strokes written, the time interval between two adjacent strokes written, and the number of time intervals between two adjacent strokes written; A calculation module, for calculating a first proportion of short strokes and a second proportion of short intervals in the homework page of the student according to the page writing information of the homework page; wherein the short strokes are used to represent strokes whose writing time is less than a writing time threshold; and the short intervals are used to represent a time interval between two adjacent strokes whose writing time is less than a time length threshold; The determination module is used to determine the homework page as a writing abnormal page when it is determined that the student uses an abnormal writing posture to write the homework page according to the first proportion of the short strokes and the second proportion of the short intervals on the homework page; the calculation module is specifically used to: Determine the strokes whose writing duration is less than the writing duration threshold as short strokes, and count the number of short strokes in the job page; The first proportion of short strokes in the homework page of the student is calculated by the following formula: The first proportion = the number of short strokes / the number of written strokes Determine a time interval between two adjacent strokes that is shorter than the time length threshold as a short interval, and count the number of the short intervals in the job page; The second proportion of short intervals in the homework page of the student is calculated by the following formula: The second proportion = the number of the short intervals / the number of time intervals between two adjacent strokes.

6. The device according to claim 5, characterized in that The determination module is specifically used for: Obtain the number of all students, the first proportion of the short strokes calculated by all students, and the second proportion of the short intervals; Using the calculated first proportions of the short strokes of all students and the number of students, calculate the average value and standard deviation of the first proportions of all students; Using the calculated second proportions of the short intervals of all students and the number of students, calculate the average value and the standard deviation of the second proportions of all students; When it is determined that the student uses an abnormal writing posture to write the homework page by using the first proportion of the short strokes and the second proportion of the short intervals of the student and the calculated average first proportion, first proportion standard deviation, second proportion average and second proportion standard deviation of all students, the homework page is determined as an abnormal writing page.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are executed.

8. An electronic device, characterized in that: The electronic device includes a memory, a processor and one or more programs, wherein the one or more programs are stored in the memory and are configured so that the processor executes the steps of the method according to any one of claims 1 to 4.

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