CN116558494A - Method, system and medium based on smart wearable device compass function realization - Google Patents

Abstract

The invention provides a method, a system and a medium for realizing compass functions based on intelligent wearable equipment. Belongs to the technical field of intelligent wearable equipment technology and compass display, and the method comprises the following steps: acquiring display geomagnetic data information, real-time geomagnetic data information and time information of a wearable device, processing the real-time geomagnetic data information to obtain effective real-time geomagnetic data information, inputting the effective real-time geomagnetic data information and the current display geomagnetic data information into a preset picture rotation regulation model for processing to obtain compass disc picture rotation data information, rotating a disc original image according to the compass disc picture rotation data information and mapping the compass disc original image with the time information to obtain compass disc display image information, and displaying the compass disc display image information on the wearable device; through calculation and image display to disc rotation information, the compass disc rotation function of the wearable device is realized.

Description

Method, system and medium based on smart wearable device compass function realization

technical field

This application relates to the field of smart wearable device technology and compass display technology, in particular, to a method, system and medium based on smart wearable device compass function realization.

Background technique

The compass can help people identify the direction conveniently and quickly, so it is widely favored by outdoor sportsmen in outdoor sports. At present, the compass of smart wearable devices in the market uses the method of rotating the pointer to indicate the direction, but this rotation method cannot Directly display the current orientation. For beginners, it is still necessary to think and calculate the current orientation based on the compass display orientation. Therefore, it is necessary to adjust the compass display method to quickly and correctly identify the user's orientation to reduce the use of According to the thinking of the reader, the instant reading mode can be quickly realized; while the amount of calculation to realize the rotation of the disk image is very large, and there are certain requirements for the performance of the equipment, it is necessary to realize the fast and accurate rotation of the disk image through innovative data processing methods.

For the above problems, effective technical solutions are urgently needed at present.

Contents of the invention

The purpose of the invention of this application is to provide a method, system and medium based on the compass function of smart wearable devices, which can obtain geomagnetic data information according to the real-time position of the compass, and realize the direction indication of the compass through the rotation of the disc image, which is easy to use The operator can quickly and conveniently identify the current position.

The invention of the present application also provides a method for implementing compass functions based on smart wearable devices, including the following steps:

Obtain the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device;

Preprocessing the real-time geomagnetic data information to obtain effective real-time geomagnetic data information;

Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, and obtain the compass disk image rotation data information;

Mapping and rotating the original image of the compass disk according to the rotation data information of the compass disk image and the time information, to obtain display image information of the compass disk;

Displaying image information on the compass disc is displayed on the wearable device.

Optionally, in the method for realizing the compass function of the smart wearable device described in the invention of the present application, the acquisition of the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device includes:

Obtain the currently displayed geomagnetic data information of the compass of the wearable device, including displaying magnetic field strength information, magnetic declination information, and magnetic inclination information;

Obtaining real-time geomagnetic data information of the compass, including real-time magnetic field strength information, real-time magnetic declination information, and real-time magnetic inclination information;

Get the time information of the compass.

Optionally, in the method for implementing compass functions based on smart wearable devices described in the present application, the preprocessing of the real-time geomagnetic data information to obtain effective real-time geomagnetic data information includes:

According to the preprocessing of multiple real-time geomagnetic data information, the expected value of real-time geomagnetic data information is obtained;

calculating the real-time geomagnetic dispersion value according to the expected value of the real-time geomagnetic data information, and retaining the real-time geomagnetic data information corresponding to the real-time geomagnetic dispersion value smaller than the preset dispersion threshold;

Mark the retained real-time geomagnetic data information as valid real-time geomagnetic data information.

Optionally, in the method for implementing compass functions based on smart wearable devices described in the present application, the effective real-time geomagnetic data information and the currently displayed geomagnetic data information are input into a preset image rotation control model for processing , to obtain the rotation data information of the compass disk image, including:

Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, obtain real-time geomagnetic image angle information and display geomagnetic image angle information;

According to the angle information of the real-time geomagnetic picture and the angle information of the displayed geomagnetic picture, the two-factor rotation difference processing is performed through the preset rotation processing model to obtain the rotation data information of the compass disc picture.

Optionally, in the method for realizing the compass function based on the smart wearable device described in the present application, the rotation data information of the compass disk image and the time information are mapped and the original image of the disk is rotated to obtain The compass disc displays image information, specifically:

Carry out mapping and association according to the rotation data information of the compass disk image and the time information to obtain real-time disk image rotation information;

Inputting the real-time disk image rotation information into the preset disk image processing model to rotate the original image of the disk to obtain compass disk display image information and store it in the buffer area.

Optionally, in the method for implementing the compass function based on the smart wearable device described in the present application, the displaying image information on the compass disc on the wearable device includes:

Inputting the display image information of the compass disc in the buffer area into the preset compass graphic display model;

The graphic display model of the compass corrects the display image information of the compass disc according to the preset display screen size and resolution of the smart device;

Send the corrected compass disc display image information to the screen display module, and refresh and display the screen display content.

Optionally, in the method for implementing compass functions based on smart wearable devices described in the present application, the effective real-time geomagnetic data information and the currently displayed geomagnetic data information are input into a preset image rotation control model for processing , to obtain the rotation data information of the compass disk image, including:

The rotation data information of the compass disc picture includes rotation tilt compensation angle data;

The calculation formula of the rotation tilt compensation angle data is:

;

in, For rotation and tilt compensation angle data, /> To judge the rotation direction sign, /> is the real-time geomagnetic declination, To display the geomagnetic inclination, /> is the tangent function, /> is the magnetic force in the X-axis direction, /> is the magnetic force in the Y-axis direction.

In the second aspect, the invention of the present application also provides a compass function realization system based on a smart wearable device. When the program of the method for realizing the compass function of the wearable device is executed by the processor, the following steps are implemented:

Obtain the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device;

Preprocessing the real-time geomagnetic data information to obtain effective real-time geomagnetic data information;

Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, and obtain the compass disk image rotation data information;

Mapping and rotating the original image of the compass disk according to the rotation data information of the compass disk image and the time information, to obtain display image information of the compass disk;

Displaying image information on the compass disc is displayed on the wearable device.

Optionally, in the smart wearable device compass function realization system based on the invention of the present application, the acquisition of currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device includes:

Obtain the currently displayed geomagnetic data information of the compass of the wearable device, including displaying magnetic field strength information, magnetic declination information, and magnetic inclination information;

Obtaining real-time geomagnetic data information of the compass, including real-time magnetic field strength information, real-time magnetic declination information, and real-time magnetic inclination information;

Get the time information of the compass.

In the third aspect, the invention of the present application also provides a computer-readable storage medium, the computer-readable storage medium includes a method for realizing the compass function based on the smart wearable device, and the program for realizing the compass function based on the smart wearable device is processed When the device is executed, the steps of the method for realizing the compass function based on the smart wearable device as described in any one of the above are realized.

As can be seen from the above, the method, system and medium for realizing compass functions based on smart wearable devices provided by the invention of this application collect the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of smart wearable devices, and analyze the real-time geomagnetic data. The information is preprocessed to obtain effective real-time geomagnetic data information, and then the effective real-time geomagnetic data information and the currently displayed geomagnetic data information are input into the preset image rotation control model for processing, and the compass disk image rotation data information is obtained. According to the compass circle The disk image rotation data information rotates the original disk image and maps it with the time information to obtain compass disk display image information, and displays the compass disk display image information on the wearable device.

Additional features and advantages of the application will be set forth in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

In order to illustrate the technical solution of the invention of the present application more clearly, the accompanying drawings that need to be used in the invention of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the application, and therefore should not It is regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

FIG. 1 is a flow chart of a method for realizing compass functions based on a smart wearable device provided in an embodiment of the present application;

Fig. 2 is a flow chart of acquiring currently displayed geomagnetic data information and real-time geomagnetic data information based on the smart wearable device compass function implementation method provided by the embodiment of the present application;

Fig. 3 is a flow chart of obtaining effective real-time geomagnetic data information based on the compass function implementation method of the smart wearable device provided by the embodiment of the present application;

Fig. 4 is a flow chart of obtaining the rotation data information of the compass disk image based on the implementation method of the compass function of the smart wearable device provided by the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a system for implementing compass functions based on smart wearable devices provided by an embodiment of the present application.

Detailed ways

In order to be able to understand the above purpose, features and advantages of the present invention more clearly, the technical solutions in the embodiments of the application will be further clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments It is only a part of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

Please refer to FIG. 1 . FIG. 1 is a flowchart of a method for implementing compass functions based on smart wearable devices in some embodiments of the present application. The compass function realization method of the smart wearable device is used in the compass based on the smart wearable device.

As shown in Figure 1, the compass function implementation method based on the smart wearable device includes the following steps:

S101. Obtain currently displayed geomagnetic data information, real-time geomagnetic data information, and time information of the compass of the wearable device;

S102. Preprocessing the real-time geomagnetic data information to obtain effective real-time geomagnetic data information;

S103. Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into a preset image rotation control model for processing, and obtain compass disk image rotation data information;

S104. Mapping and rotating the original image of the compass disk according to the rotation data information of the compass disk image and the time information, to obtain display image information of the compass disk;

S105. Displaying image information on the compass disc on the wearable device.

It should be noted that due to different locations and orientations, the geomagnetic data information may be different. Therefore, in this embodiment, in order to realize the compass disk rotation function of the smart wearable device, firstly, the geomagnetic data information currently displayed by the compass of the wearable device must be collected. , real-time geomagnetic data information and time information, currently displayed geomagnetic data information includes display magnetic field strength information, display magnetic declination information, display magnetic dip angle information, real-time geomagnetic data information includes real-time magnetic field strength information, real-time magnetic declination information, real-time magnetic dip angle Information, in order to ensure the accuracy of real-time geomagnetic information data, it is necessary to preprocess the real-time geomagnetic data information. The preprocessing process is as follows: first calculate the expected value of real-time geomagnetic data information, and calculate the real-time geomagnetic dispersion value according to the expected value. The dispersion value reflects the volatility of the data. In order to ensure the effectiveness and stability of a set of real-time geomagnetic data information, the real-time geomagnetic data information whose dispersion degree is smaller than the preset dispersion threshold is retained, and the dispersion is greater than the preset dispersion threshold. The real-time geomagnetic data information is discarded, and then the effective real-time geomagnetic data information is determined; the effective real-time geomagnetic data information and the currently displayed geomagnetic data information are input into the preset image rotation control model for processing, and the compass disc image rotation data information is obtained. The specific method In order to: obtain effective real-time geomagnetic picture angle information and display geomagnetic picture angle information, carry out two-factor rotation difference processing through the preset rotation processing model, obtain compass disk picture rotation data information, and compass disk picture rotation data information and time The information is mapped and connected in parallel to obtain the real-time disk image rotation information. The wearable device disk display will calculate the tilt compensation angle direction and degree, and then rotate the disk image through the disk image processing model to obtain the compass disk display image information. When displaying, the compass graphic display model will correct the display image information of the compass disc to the most suitable state according to the display screen size and resolution of the smart wearable device, realize the rotation of the compass disc image, and facilitate the user to quickly and accurately identify the current direction technology .

Please refer to FIG. 2 . FIG. 2 is a flow chart of obtaining currently displayed geomagnetic data information and real-time geomagnetic data information based on a method for realizing compass function of a smart wearable device in some embodiments of the present application. According to an embodiment of the present invention, the acquisition of currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device is specifically:

S201. Obtain the currently displayed geomagnetic data information of the compass of the wearable device, including displaying magnetic field strength information, displaying magnetic declination information, and displaying magnetic inclination information;

S202. Obtain real-time geomagnetic data information of the compass, including real-time magnetic field strength information, real-time magnetic declination information, and real-time magnetic inclination information;

S203. Obtain time information of the compass.

It should be noted that geomagnetic data information includes three factors, namely: magnetic field intensity information, magnetic declination information, and magnetic inclination information; due to different locations and azimuths, geomagnetic data information may be different, so when calculating the compass disc Before the picture rotates data information, it is necessary to obtain the currently displayed geomagnetic data information and real-time geomagnetic data information. With the basic data before and after the change, the rotation data can be accurately calculated.

Please refer to FIG. 3 . FIG. 3 is a flow chart of obtaining effective real-time geomagnetic data information based on a compass function implementation method of a smart wearable device provided by an embodiment of the present application. According to an embodiment of the present invention, the preprocessing of the real-time geomagnetic data information to obtain effective real-time geomagnetic data information includes:

S301. Obtain an expected value of real-time geomagnetic data information according to preprocessing of multiple real-time geomagnetic data information;

S302. Calculate and obtain the real-time geomagnetic dispersion value according to the expected value of the real-time geomagnetic data information, and retain the real-time geomagnetic data information corresponding to the real-time geomagnetic dispersion value smaller than the preset dispersion threshold;

S303. Mark the retained real-time geomagnetic data information as valid real-time geomagnetic data information.

It should be noted that at the same location, geomagnetic data information at different heights and directions may also have large deviations. Therefore, after we measure several sets of real-time geomagnetic data information, we must first perform preprocessing to obtain effective real-time geomagnetic data information. , to more accurately represent the real-time geomagnetic data information, the preprocessing process first calculates the expected value of the real-time geomagnetic data information, and the calculation formula is:

;

in, is the expected value of geomagnetic data information, /> , /> ....../> for /> in a group Geomagnetic data information, /> is the number of a set of geomagnetic data information, and then calculate the real-time geomagnetic dispersion value according to the expected value. The calculation formula is:

;

in, is the real-time geomagnetic dispersion value, /> is the number of a set of geomagnetic data information, /> for No. /> Geomagnetic data information, /> is the expected value of real-time geomagnetic data information;

The dispersion value reflects the volatility of the data. In order to ensure the effectiveness and stability of a set of real-time geomagnetic data information, the real-time geomagnetic data information whose dispersion degree is smaller than the preset dispersion threshold is retained, and the dispersion is greater than the preset dispersion threshold. Real-time geomagnetic data information is discarded, and effective real-time geomagnetic data information is determined.

Please refer to FIG. 4 . FIG. 4 is a flow chart of obtaining rotation data information of a compass disk image based on a method for implementing a compass function of a smart wearable device provided by an embodiment of the present application. According to an embodiment of the present invention, the input of the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into a preset image rotation control model for processing to obtain compass disk image rotation data information includes:

S401. Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into a preset image rotation control model for processing, and obtain real-time geomagnetic image angle information and displayed geomagnetic image angle information;

S402. According to the angle information of the real-time geomagnetic picture and the angle information of the displayed geomagnetic picture, perform two-factor rotation difference processing through a preset rotation processing model, and obtain the rotation data information of the compass disk picture.

It should be noted that after determining the effective real-time geomagnetic data information and the currently displayed geomagnetic data information, the data information needs to be converted into display angle information, and the above data are input into the preset image rotation control model, and the model is calculated and processed to obtain Real-time geomagnetic picture angle information and displayed geomagnetic picture angle information; in order to obtain the disk picture rotation data information more accurately, the obtained real-time geomagnetic picture angle information and displayed geomagnetic picture angle information are subjected to two-factor rotation through the preset rotation processing model Difference processing, to obtain accurate rotation data information of the compass disk image, that is, how many degrees the current display disk image should rotate in. Specifically, the two-factor rotation difference formula is:

;

in, for the function /> Value at point P=(x,y), Q11=(/> , /> ), Q12=(/> , /> ), Q21=( ,/> ) and Q22=(/> ,/> ) respectively for the function /> The value of the 4 points on .

According to an embodiment of the present invention, the compass disk picture rotation data information is mapped with the time information and the original image of the disk is rotated to obtain compass disk display image information, specifically:

Carry out mapping and association according to the rotation data information of the compass disk image and the time information to obtain real-time disk image rotation information;

Inputting the real-time disk image rotation information into the preset disk image processing model to rotate the original image of the disk to obtain compass disk display image information and store it in the buffer area.

It should be noted that since the state of the compass may be moving at any time, the real-time geomagnetic data information and the currently displayed geomagnetic data information may also change at any time, and the rotation data information of the compass disk image will also change accordingly. The continuous updating of data requires the identification of the sequence and uniqueness of the data. Therefore, it is necessary to associate the compass disk image rotation data information with the time information mapping to ensure the latest state value and immediacy of the real-time disk image rotation information; The real-time disc image rotation information is input into the preset disc image processing model, and the original disc image is rotated to obtain compass disc display image information, which is stored in the buffer area.

According to an embodiment of the present invention, the displaying image information on the compass disc on the wearable device includes:

Inputting the display image information of the compass disc in the buffer area into the preset compass graphic display model;

The graphic display model of the compass corrects the display image information of the compass disc according to the preset display screen size and resolution of the smart device;

Send the corrected compass disc display image information to the screen display module, and refresh and display the screen display content.

It should be noted that the image information displayed by the compass disc in the cache area is displayed on the screen, and calculation and correction are still required. The image information displayed by the compass disc is input into the preset compass graphic display model. Due to the size and resolution of the smart wearable device screen rate and other information is inconsistent, the graphic display model will correct the compass disc display image information according to the preset display screen size and resolution of the smart wearable device, and then send the corrected compass disc display image information to the screen display module , to refresh the display content on the screen.

According to an embodiment of the present invention, the inputting the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into a preset image rotation control model for processing to obtain compass disk image rotation data information further includes:

The rotation data information of the compass disc picture includes rotation tilt compensation angle data;

The calculation formula of the rotation tilt compensation angle data is:

;

in, For rotation and tilt compensation angle data, /> To judge the rotation direction sign, /> is the real-time geomagnetic declination, To display the geomagnetic inclination, /> is the tangent function, /> is the magnetic force in the X-axis direction, /> is the magnetic force in the Y-axis direction.

It should be noted that when obtaining the rotation data information of the compass disk image, in order to improve the display accuracy, the calculation of the tilt compensation angle is performed. After the formula calculation, the direction and angle of the tilt compensation angle can be judged.

It is worth mentioning that the present invention also includes:

After the compass disc display image information is displayed on the wearable device, the smart wearable device broadcasts the direction, angle and current real-time orientation information of the current compass rotation operation.

It should be noted that after the wearable device is displayed, it broadcasts the direction, angle and current real-time orientation information of the current compass rotation operation. First, it helps the user to more easily know the changes in the rotation orientation, the size of the rotation angle, and the current real-time orientation. Information, on the other hand, can also let the visually impaired clearly know the current orientation change, which provides better help.

It is worth mentioning that the present invention also includes:

When the compass function of the smart wearable device is realized, the magnetic field strength corresponding to the positioning data of the smart wearable device in the database is obtained, compared with the real-time magnetic field strength, the comparison result is compared with the preset threshold, and corresponding prompt information is output.

It should be noted that the acquired positioning data of the smart wearable device includes location information such as the longitude, latitude, and height of the device, and the corresponding magnetic field strength in the database is matched according to the positioning data, and the real-time magnetic field strength is compared with the corresponding magnetic field strength in the database. , if the intensity ratio exceeds the preset threshold of 20%, the smart device will issue an early warning prompt that there may be a magnetic field or other factors nearby that may affect the correct display of the compass.

As shown in Figure 5, the present invention also discloses a compass function realization system 5 based on a smart wearable device, including a memory 51 and a processor 52, the memory includes a method program for realizing the compass function of a smart wearable device, and the smart wearable device When the compass function realization method program is executed by the processor, the following steps are realized:

Obtain the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device;

Preprocessing the real-time geomagnetic data information to obtain effective real-time geomagnetic data information;

Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, and obtain the compass disk image rotation data information;

Mapping and rotating the original image of the compass disk according to the rotation data information of the compass disk image and the time information, to obtain display image information of the compass disk;

Displaying image information on the compass disc is displayed on the wearable device.

It should be noted that due to different locations and orientations, the geomagnetic data information may be different. Therefore, in this embodiment, in order to realize the compass disk rotation function of the smart wearable device, firstly, the geomagnetic data information currently displayed by the compass of the wearable device must be collected. , real-time geomagnetic data information and time information, currently displayed geomagnetic data information includes display magnetic field strength information, display magnetic declination information, display magnetic dip angle information, real-time geomagnetic data information includes real-time magnetic field strength information, real-time magnetic declination information, real-time magnetic dip angle Information, in order to ensure the accuracy of real-time geomagnetic information data, it is necessary to preprocess the real-time geomagnetic data information. The preprocessing process is as follows: first calculate the expected value of real-time geomagnetic data information, and calculate the real-time geomagnetic dispersion value according to the expected value. The dispersion value reflects the volatility of the data. In order to ensure the effectiveness and stability of a set of real-time geomagnetic data information, the real-time geomagnetic data information whose dispersion degree is smaller than the preset dispersion threshold is retained, and the dispersion is greater than the preset dispersion threshold. The real-time geomagnetic data information is discarded, and then the effective real-time geomagnetic data information is determined; the effective real-time geomagnetic data information and the currently displayed geomagnetic data information are input into the preset image rotation control model for processing, and the compass disc image rotation data information is obtained. The specific method In order to: obtain effective real-time geomagnetic picture angle information and display geomagnetic picture angle information, carry out two-factor rotation difference processing through the preset rotation processing model, obtain compass disk picture rotation data information, and compass disk picture rotation data information and time The information is mapped and connected in parallel to obtain the real-time disk image rotation information. The wearable device disk display will calculate the tilt compensation angle direction and degree, and then rotate the disk image through the disk image processing model to obtain the compass disk display image information. When displaying, the compass graphic display model will correct the display image information of the compass disc to the most suitable state according to the display screen size and resolution of the smart wearable device, realize the rotation of the compass disc image, and facilitate the user to quickly and accurately identify the current direction technology .

According to an embodiment of the present invention, the acquisition of currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device is specifically:

Obtain the currently displayed geomagnetic data information of the compass of the wearable device, including displaying magnetic field strength information, magnetic declination information, and magnetic inclination information;

Obtaining real-time geomagnetic data information of the compass, including real-time magnetic field strength information, real-time magnetic declination information, and real-time magnetic inclination information;

Get the time information of the compass.

It should be noted that geomagnetic data information includes three factors, namely: magnetic field intensity information, magnetic declination information, and magnetic inclination information; due to different locations and azimuths, geomagnetic data information may be different, so when calculating the compass disc Before the picture rotates data information, it is necessary to obtain the currently displayed geomagnetic data information and real-time geomagnetic data information. With the basic data before and after the change, the rotation data can be accurately calculated.

According to an embodiment of the present invention, the preprocessing of the real-time geomagnetic data information to obtain effective real-time geomagnetic data information includes:

According to the preprocessing of multiple real-time geomagnetic data information, the expected value of real-time geomagnetic data information is obtained;

calculating the real-time geomagnetic dispersion value according to the expected value of the real-time geomagnetic data information, and retaining the real-time geomagnetic data information corresponding to the real-time geomagnetic dispersion value smaller than the preset dispersion threshold;

Mark the retained real-time geomagnetic data information as valid real-time geomagnetic data information.

It should be noted that at the same location, geomagnetic data information at different heights and directions may also have large deviations. Therefore, after we measure several sets of real-time geomagnetic data information, we must first perform preprocessing to obtain effective real-time geomagnetic data information. , to more accurately represent the real-time geomagnetic data information, the preprocessing process first calculates the expected value of the real-time geomagnetic data information, and the calculation formula is:

;

in, is the expected value of geomagnetic data information, /> , /> ....../> for /> in a group Geomagnetic data information, /> is the number of a set of geomagnetic data information, and then calculate the real-time geomagnetic dispersion value according to the expected value. The calculation formula is:

;

in, is the real-time geomagnetic dispersion value, /> is the number of a set of geomagnetic data information, /> for No. /> Geomagnetic data information, /> is the expected value of real-time geomagnetic data information;

The dispersion value reflects the volatility of the data. In order to ensure the effectiveness and stability of a set of real-time geomagnetic data information, the real-time geomagnetic data information whose dispersion degree is smaller than the preset dispersion threshold is retained, and the dispersion is greater than the preset dispersion threshold. Real-time geomagnetic data information is discarded, and effective real-time geomagnetic data information is determined.

According to an embodiment of the present invention, the input of the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into a preset image rotation control model for processing to obtain compass disk image rotation data information includes:

Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, obtain real-time geomagnetic image angle information and display geomagnetic image angle information;

According to the angle information of the real-time geomagnetic picture and the angle information of the displayed geomagnetic picture, the two-factor rotation difference processing is performed through the preset rotation processing model to obtain the rotation data information of the compass disc picture.

It should be noted that after determining the effective real-time geomagnetic data information and the currently displayed geomagnetic data information, the data information needs to be converted into display angle information, and the above data are input into the preset image rotation control model, and the model is calculated and processed to obtain Real-time geomagnetic picture angle information and displayed geomagnetic picture angle information; in order to obtain the disk picture rotation data information more accurately, the obtained real-time geomagnetic picture angle information and displayed geomagnetic picture angle information are subjected to two-factor rotation through the preset rotation processing model Difference processing, to obtain accurate rotation data information of the compass disk image, that is, how many degrees the current display disk image should rotate in. Specifically, the two-factor rotation difference formula is:

;

in, for the function /> Value at point P=(x,y), Q11=(/> , /> ), Q12=(/> , /> ), Q21=( ,/> ) and Q22=(/> ,/> ) respectively for the function /> The value of the 4 points on .

According to an embodiment of the present invention, the compass disk picture rotation data information is mapped with the time information and the original image of the disk is rotated to obtain compass disk display image information, specifically:

Carry out mapping and association according to the rotation data information of the compass disk image and the time information to obtain real-time disk image rotation information;

Inputting the real-time disk image rotation information into the preset disk image processing model to rotate the original image of the disk to obtain compass disk display image information and store it in the buffer area.

It should be noted that since the state of the compass may be moving at any time, the real-time geomagnetic data information and the currently displayed geomagnetic data information may also change at any time, and the rotation data information of the compass disk image will also change accordingly. The continuous updating of data requires the identification of the sequence and uniqueness of the data. Therefore, it is necessary to associate the compass disk image rotation data information with the time information mapping to ensure the latest state value and immediacy of the real-time disk image rotation information; The real-time disc image rotation information is input into the preset disc image processing model, and the original disc image is rotated to obtain compass disc display image information, which is stored in the buffer area.

According to an embodiment of the present invention, the displaying image information on the compass disc on the wearable device includes:

Inputting the display image information of the compass disc in the buffer area into the preset compass graphic display model;

The graphic display model of the compass corrects the display image information of the compass disc according to the preset display screen size and resolution of the smart device;

Send the corrected compass disc display image information to the screen display module, and refresh and display the screen display content.

It should be noted that the image information displayed by the compass disc in the cache area is displayed on the screen, and calculation and correction are still required. The image information displayed by the compass disc is input into the preset compass graphic display model. Due to the size and resolution of the smart wearable device screen rate and other information is inconsistent, the graphic display model will correct the compass disc display image information according to the preset display screen size and resolution of the smart wearable device, and then send the corrected compass disc display image information to the screen display module , to refresh the screen display content.

According to an embodiment of the present invention, the inputting the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into a preset image rotation control model for processing to obtain compass disk image rotation data information further includes:

The rotation data information of the compass disc picture includes rotation tilt compensation angle data;

The calculation formula of the rotation tilt compensation angle data is:

;

in, For rotation and tilt compensation angle data, /> To judge the rotation direction sign, /> is the real-time geomagnetic declination, /> To display the geomagnetic inclination, /> is the tangent function, /> is the magnetic force in the X-axis direction, /> is the magnetic force in the Y-axis direction.

It should be noted that when obtaining the rotation data information of the compass disk image, in order to improve the display accuracy, the calculation of the tilt compensation angle is performed. After the formula calculation, the direction and angle of the tilt compensation angle can be judged.

It is worth mentioning that the present invention also includes:

After the compass disc display image information is displayed on the wearable device, the smart wearable device broadcasts the direction, angle and current real-time orientation information of the current compass rotation operation.

It should be noted that after the wearable device is displayed, it broadcasts the direction, angle and current real-time orientation information of the current compass rotation operation. First, it helps the user to more easily know the changes in the rotation orientation, the size of the rotation angle, and the current real-time orientation. Information, on the other hand, can also let the visually impaired clearly know the current orientation change, which provides better help.

It is worth mentioning that the present invention also includes:

When the compass function of the smart wearable device is realized, the magnetic field strength corresponding to the positioning data of the smart wearable device in the database is obtained, compared with the real-time magnetic field strength, the comparison result is compared with the preset threshold, and corresponding prompt information is output.

It should be noted that the acquired positioning data of the smart wearable device includes location information such as the longitude, latitude, and height of the device, and the corresponding magnetic field strength in the database is matched according to the positioning data, and the real-time magnetic field strength is compared with the corresponding magnetic field strength in the database. , if the intensity ratio exceeds the preset threshold of 20%, the smart device will issue an early warning prompt that there may be a magnetic field or other factors nearby that may affect the correct display of the compass.

The present invention also provides a computer-readable storage medium. The computer-readable storage medium includes a program for realizing the compass function of the smart wearable device. When the program for realizing the compass function of the smart wearable device is executed by the processor, the The steps of the method for realizing the compass function based on the smart wearable device as described in any one of the above.

The present invention discloses a method, system and medium based on the compass function of a smart wearable device. The method includes: acquiring the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device; and storing the real-time geomagnetic data The information is preprocessed to obtain effective real-time geomagnetic data information; the effective real-time geomagnetic data information and the currently displayed geomagnetic data information are input into the preset image rotation control model for processing, and the compass disk image rotation data information is obtained; according to The compass disk image rotation data information rotates the original image of the disk and maps it with the time information to obtain compass disk display image information; the compass disk display image information is displayed on the wearable device. The invention can obtain geomagnetic data information according to the real-time position of the compass, and realize the indication of the direction of the compass through the rotation of the disk image, which is convenient for the user to quickly and conveniently identify the current position.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or May be integrated into another system, or some features may be ignored, or not implemented. In addition, the coupling, or direct coupling, or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical or other forms of.

The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed to multiple network units; Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention can be integrated into one processing unit, or each unit can be used as a single unit, or two or more units can be integrated into one unit; the above-mentioned integration The unit can be realized in the form of hardware or in the form of hardware plus software functional unit.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned programs can be stored in a readable storage medium. The steps of the method embodiment; and the aforementioned storage medium includes: a removable storage device, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, etc. medium for program code.

Alternatively, if the above-mentioned integrated units of the present invention are realized in the form of software function modules and sold or used as independent products, they can also be stored in a readable storage medium. Based on this understanding, the essence of the technical solution of the embodiment of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for making A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media capable of storing program codes such as removable storage devices, ROM, RAM, magnetic disks or optical disks.

Claims (10)

1. Based on the smart wearable device compass function realization method, it is characterized in that, comprising the following steps: Obtain the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device; Preprocessing the real-time geomagnetic data information to obtain effective real-time geomagnetic data information; Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, and obtain the compass disk image rotation data information; Mapping and rotating the original image of the compass disk according to the rotation data information of the compass disk image and the time information, to obtain display image information of the compass disk; Displaying image information on the compass disc is displayed on the wearable device. 2. The method for realizing compass functions based on smart wearable devices according to claim 1, wherein the acquisition of currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device includes: Obtain the currently displayed geomagnetic data information of the compass of the wearable device, including displaying magnetic field strength information, magnetic declination information, and magnetic inclination information; Obtaining real-time geomagnetic data information of the compass, including real-time magnetic field strength information, real-time magnetic declination information, and real-time magnetic inclination information; Get the time information of the compass. 3. The smart wearable device-based compass function implementation method according to claim 2, wherein said real-time geomagnetic data information is preprocessed to obtain effective real-time geomagnetic data information, comprising: According to the preprocessing of multiple real-time geomagnetic data information, the expected value of real-time geomagnetic data information is obtained; calculating the real-time geomagnetic dispersion value according to the expected value of the real-time geomagnetic data information, and retaining the real-time geomagnetic data information corresponding to the real-time geomagnetic dispersion value smaller than the preset dispersion threshold; Mark the retained real-time geomagnetic data information as valid real-time geomagnetic data information. 4. The method for realizing compass functions based on smart wearable devices according to claim 3, wherein said inputting said effective real-time geomagnetic data information and said currently displayed geomagnetic data information into a preset picture rotation control model is performed Processing to obtain the rotation data information of the compass disk image, including: Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, obtain real-time geomagnetic image angle information and display geomagnetic image angle information; According to the angle information of the real-time geomagnetic picture and the angle information of the displayed geomagnetic picture, the two-factor rotation difference processing is performed through the preset rotation processing model to obtain the rotation data information of the compass disc picture. 5. The method for realizing compass functions based on smart wearable devices according to claim 4, wherein the rotation data information according to the compass disk image and the time information are mapped and the original image of the disk is rotated, Obtain the image information displayed by the compass disc, specifically: Carry out mapping and association according to the rotation data information of the compass disk image and the time information to obtain real-time disk image rotation information; Inputting the real-time disk image rotation information into the preset disk image processing model to rotate the original image of the disk to obtain compass disk display image information and store it in the buffer area. 6. The method for realizing compass functions based on smart wearable devices according to claim 5, wherein the displaying image information on the compass disc on the wearable device includes: Inputting the display image information of the compass disc in the buffer area into the preset compass graphic display model; The graphic display model of the compass corrects the display image information of the compass disc according to the preset display screen size and resolution of the smart device; Send the corrected compass disc display image information to the screen display module, and refresh and display the screen display content. 7. The method for realizing compass functions based on smart wearable devices according to claim 4, wherein said inputting said effective real-time geomagnetic data information and said currently displayed geomagnetic data information into a preset image rotation control model is performed Processing, to obtain the rotation data information of the compass disk image, including: The rotation data information of the compass disc picture includes rotation tilt compensation angle data; The calculation formula of the rotation tilt compensation angle data is: ; in, For rotation and tilt compensation angle data, /> To judge the rotation direction sign, /> is the real-time geomagnetic declination, /> To display the geomagnetic inclination, /> is the tangent function, /> is the magnetic force in the X-axis direction, /> is the magnetic force in the Y-axis direction. 8. A compass function realization system based on a smart wearable device, characterized in that the system includes: a memory and a processor, the memory includes a program based on a method for realizing the compass function of a smart wearable device, and the smart wearable device based When the program of the compass function realization method is executed by the processor, the following steps are implemented: Obtain the currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device; Preprocessing the real-time geomagnetic data information to obtain effective real-time geomagnetic data information; Input the effective real-time geomagnetic data information and the currently displayed geomagnetic data information into the preset image rotation control model for processing, and obtain the compass disk image rotation data information; Mapping and rotating the original image of the compass disk according to the rotation data information of the compass disk image and the time information, to obtain display image information of the compass disk; Displaying image information on the compass disc is displayed on the wearable device. 9. The compass function realization system based on smart wearable devices according to claim 8, wherein said acquisition of currently displayed geomagnetic data information, real-time geomagnetic data information and time information of the compass of the wearable device includes: Obtain the currently displayed geomagnetic data information of the compass of the wearable device, including displaying magnetic field strength information, magnetic declination information, and magnetic inclination information; Obtaining real-time geomagnetic data information of the compass, including real-time magnetic field strength information, real-time magnetic declination information, and real-time magnetic inclination information; Get the time information of the compass. 10. A computer-readable storage medium, characterized in that, the computer-readable storage medium includes a program for implementing a method based on the compass function of a smart wearable device, and when the program for implementing a method for implementing a compass function based on a smart wearable device is executed by a processor, Realize the steps of the compass function realization method based on the smart wearable device as described in any one of claims 1 to 7.