CN112902983B - Step number counting method and device and electronic equipment - Google Patents
Step number counting method and device and electronic equipment Download PDFInfo
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- CN112902983B CN112902983B CN202110105490.1A CN202110105490A CN112902983B CN 112902983 B CN112902983 B CN 112902983B CN 202110105490 A CN202110105490 A CN 202110105490A CN 112902983 B CN112902983 B CN 112902983B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers
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Abstract
The application discloses a step number counting method, a step number counting device and electronic equipment, and belongs to the technical field of communication. The method is applied to the first electronic equipment, the first electronic equipment is any one of a plurality of electronic equipment carried by a user, and the method comprises the following steps: acquiring a first step number counted in a target step counting period and N second step numbers, wherein the first step number is counted by first electronic equipment, the second step number is counted by second electronic equipment, the second electronic equipment is electronic equipment except the first electronic equipment in a plurality of electronic equipment, and N is a positive integer; generating a first correction step number based on the first step number and the N second step numbers; and updating the counted steps of the first electronic equipment from the first steps to the first correction steps. The step counting method can reduce the possibility of deviation of the step counting of the first electronic equipment, and further improve the accuracy of the step counting of the first electronic equipment.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a step number counting method, a step number counting device and electronic equipment.
Background
With the rapid development of electronic technology, electronic devices such as mobile phones, watches, earphones, headphones, and glasses are gradually intelligent, and are already popularized as an indispensable part of people's daily lives. The step counting function is used as a basic function of the intelligent electronic equipment, and can count the steps generated in the movement process of the user under the condition of carrying the user, so that the user can know the movement condition of the user in time. However, in the current electronic device with the step counting function, the possibility of deviation of step counting easily occurs in the step counting process, so that the step counting accuracy of the electronic device is reduced.
Therefore, the existing electronic equipment has the problem of step counting accuracy in the step counting process.
Disclosure of Invention
The embodiment of the application aims to provide a step number counting method, a step number counting device and electronic equipment, which can solve the problem that the step counting accuracy and accuracy exist in the step counting process of the existing electronic equipment.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, an embodiment of the present application provides a method for step count, which is applied to a first electronic device, where the first electronic device is any one of a plurality of electronic devices carried by a user, and the method includes:
Acquiring a first step number counted in a target step counting period and N second step numbers, wherein the first step number is the step number counted by the first electronic equipment, the second step number is the step number counted by the second electronic equipment, the second electronic equipment is electronic equipment except the first electronic equipment in the plurality of electronic equipment, and N is a positive integer;
generating a first correction step number based on the first step number and N of the second step numbers;
and updating the step number counted by the first electronic equipment from the first step number to the first correction step number.
In a second aspect, an embodiment of the present application provides an apparatus for step count, which is applied to a first electronic device, where the first electronic device is any one of a plurality of electronic devices carried by a user, and the apparatus includes:
the step number acquisition module is used for acquiring a first step number counted in a target step counting period and N second step numbers, wherein the first step number is counted by the first electronic equipment, the second step number is counted by the second electronic equipment, the second electronic equipment is electronic equipment except the first electronic equipment, and the N is a positive integer;
The step number correction module is used for generating a first correction step number based on the first step number and N second step numbers;
and the step number updating module is used for updating the step number counted by the first electronic equipment from the first step number to the first correction step number.
In a third aspect, embodiments of the present application provide an electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
According to the method and the device for calculating the step number, the first electronic equipment generates the first correction step number according to the first step number counted by the first electronic equipment in the target step calculating period and the N second step numbers counted by the N second electronic equipment in the target step calculating period, and the step number counted by the first electronic equipment is updated into the first correction step number from the first step number.
Drawings
FIG. 1 is a flow chart of a method for step count according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an apparatus for step count statistics according to an embodiment of the present application;
fig. 3 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application;
fig. 4 is a second schematic diagram of a hardware structure of the electronic device according to the embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged where appropriate so that embodiments of the present application may be practiced in sequences other than those illustrated and described herein, and that the objects identified by "first", "second", etc. are generally of a type and do not limit the number of objects, e.g., the first shot object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The method for counting the number of steps provided by the embodiment of the application is described in detail below through specific embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides a step counting method, which is applied to a first electronic device, where the first electronic device is any one of a plurality of electronic devices carried by a user, and as shown in fig. 1, the step counting method includes the following steps:
step 101, acquiring a first step number counted in a target step counting period and N second step numbers, wherein the first step number is counted by the first electronic equipment, the second step number is counted by the second electronic equipment, the second electronic equipment is electronic equipment except the first electronic equipment in the plurality of electronic equipment, and N is a positive integer;
102, generating a first correction step number based on the first step number and N second step numbers;
step 103, updating the step number counted by the first electronic device from the first step number to the first correction step number.
Here, the first electronic device generates a first correction step number according to the first step number counted by the first electronic device in the target step counting period and the N second step numbers counted by the N second electronic devices in the target step counting period, and updates the step number counted by the first electronic device from the first step number to the first correction step number.
In step 101, when the user carries a plurality of electronic devices with a step counting function (such as walking, running or heel-and-toe walking, etc.), each of the plurality of electronic devices may count the number of steps the user walks in the target step counting period through the step counting model set by the user.
The first electronic device may be any one of the plurality of electronic devices carried by the user, and the N second electronic devices may be at least one electronic device other than the first electronic device among the plurality of electronic devices.
In this embodiment of the present invention, the N second step numbers may be wireless communication connection (such as bluetooth connection, infrared connection, or wireless high-fidelity connection) between the first electronic device and the N second electronic devices, where each of the N second electronic devices obtains the second step number counted in the target step counting period, and each of the second electronic devices transmits the counted second step number to the first electronic device through wireless communication connection with the first electronic device.
The first electronic device counts the first step number and the N second electronic devices respectively count the second step number, which may be that the first electronic device and the N second electronic devices count the step number by adopting different step counting models; or specifically, the first step number and the N second step numbers are step numbers counted by the target step counting model, that is, the first electronic device and the N second electronic devices are provided with the same step counting model (that is, the target step counting model), so that the step counting accuracy of the first electronic device can be further improved.
In addition, the target step counting period may be a period occupied by a counting period closest to the current moment in the process that the electronic devices count steps with a preset time period as a period, and the preset time period may be set according to an actual requirement or a step counting parameter of a step counting model, and the like, which is not limited herein.
For example, wearing intelligent wrist-watch, intelligent glasses that possess the function of taking steps and carrying the cell-phone in trousers pocket go out the in-process of walking, intelligent wrist-watch, intelligent glasses and cell-phone's the model of taking steps all uses 10s to count the cycle, and intelligent wrist-watch, intelligent glasses and cell-phone all are at 12:00:00, starting the step counting, if the current time is 12:05:10, assuming that the mobile phone is the first electronic device, the mobile phone may acquire that the step counting model is 12: step numbers (i.e. first step numbers) counted in a period (i.e. target step counting period) of 05:00-12:05:10, and receiving the intelligent watch and the intelligent glasses (i.e. N second electronic devices) through the Bluetooth module, wherein the step numbers (i.e. first step numbers) are respectively counted in 12: the number of steps counted (i.e., the second number of steps) during the period of 05:00-12:05:10 (i.e., the target step count period).
In the step 102, after the first electronic device obtains the first step number and the N second step numbers, the first electronic device may generate a first correction step number for correcting the first step number based on the first step number and the N second step numbers.
In this embodiment of the present application, the correcting the first step number based on the first step number and the N second step numbers to obtain a first corrected step number may directly use an average value of the first step number and the N second step numbers as the first corrected step number; alternatively, the first step number and the N second step numbers may be compared, the step number having the larger deviation may be determined from the first step number and the N second step numbers, the step number having the larger deviation may be removed, and finally the remaining step number average value may be used as the first correction step number.
Alternatively, specifically, the step 102 may include:
calculating the sum of absolute values of deviations of the first step number and the N second step numbers, wherein the sum of absolute values of deviations is: the sum of absolute values obtained by subtracting two steps from each other between the first step number and N second step numbers respectively;
generating a comparison result based on the magnitude relation between the sum of the absolute values of the deviations and a preset threshold value;
and correcting the first step number according to a correction mode corresponding to the comparison result to obtain a first correction step number.
Here, the first electronic device may correct the first step number according to a correction manner corresponding to the comparison result according to a comparison result of the sum of absolute values of deviations of the first step number and the N second step numbers and a preset threshold, so that the comparison result may be corrected in different correction manners when different, and step counting accuracy of the first electronic device in different scenes is improved.
And the sum of absolute values of the deviations of the first step number and the second step number is calculated, wherein the sum of absolute values of the values obtained by subtracting the first step number and the N second step numbers from each other is taken as the sum of absolute values of the deviations by the first electronic equipment.
For example, in the process that the user wears the smart watch, the smart glasses and carries the mobile phone in the trouser pocket to go out to walk, if the mobile phone is at 12: the number of steps counted in the period of 05:00-12:05:10 is 11 steps, and the intelligent glasses are used for controlling the number of steps in the period of 12: the number of steps counted in the period of 05:00-12:05:10 is 10 steps, and the intelligent watch is characterized in that: the number of steps counted in the period of 05:00-12:05:10 is 6 steps, and the sum of absolute values of the deviations is |11-10|+|11-6|+|10-6|=10.
It should be noted that, the preset threshold may be a preset fixed value; alternatively, the preset threshold may be a dynamically adjusted value.
Specifically, the preset threshold may be a product of a sum of the first step number and the N second step numbers and a preset ratio, for example, the preset ratio may be set to 20%, and in the case where the sum of the absolute values of the deviations is 10, the preset threshold may be (11+10+6) ×20% =5.4.
Alternatively, the value may be determined according to the number of electronic devices with a step counting function carried by the user, for example, a threshold value of 3 is preset when n=1, a threshold value of 5 is preset when n=2, and so on.
In addition, at least two correction modes may be preset in the first electronic device, and when the comparison result is different, the first electronic device may select a different correction mode from the at least two correction modes to correct the first step number.
Specifically, the correcting the first step number according to the correction manner corresponding to the comparison result to obtain a first correction step number may include:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the sum of the absolute values of the deviations is smaller than or equal to the preset threshold value.
Here, the first electronic device may directly take the average value of the step numbers counted by the first electronic device and the N second electronic devices respectively as the correction step number of the first step number under the condition that the fluctuation between the step number counted by the first electronic device and the step number counted by the N second electronic devices carried by the user is smaller, so that the possibility that the step counting deviation occurs in the first electronic device can be reduced, and the step counting correction efficiency of the first electronic device can be improved.
For example, if the handset is at 12: the number of steps counted in the period of 05:00-12:05:10 is 11 steps, and the intelligent glasses are used for controlling the number of steps in the period of 12: the number of steps counted in the period of 05:00-12:05:10 is 10 steps, and the intelligent watch is characterized in that: if the number of steps counted in the period of 05:00-12:05:10 is 9 steps, the sum of the absolute values of the deviations is |10-11|+|10-9|+|11-9|=4, and if the preset threshold is 5, the mobile phone can be set at 12: the number of steps counted over the period of 05:00-12:05:10 was corrected to (11+10+9)/3=10.
Alternatively, when the first step number and the N second step numbers are both the step numbers counted by the target step counting model, the obtaining the first corrected step number according to the correction method corresponding to the comparison result may include:
under the condition that the sum of the absolute values of the deviation is larger than the preset threshold value, carrying positions of the first electronic equipment and N second electronic equipment are respectively obtained;
in the M error categories, the error categories of the first electronic device and the N second electronic devices are respectively determined, wherein the error category of each electronic device corresponds to the carrying position of the electronic device, and the M error categories are as follows: the step counting precision information of the target step counting model under each carrying position is divided into categories according to different carrying positions in advance, wherein M is an integer greater than 1;
And correcting the first step number according to a target correction mode based on the first step number and the N second step numbers to obtain a first correction step number, wherein the target correction mode is associated with error categories of the first electronic equipment and the N second electronic equipment.
Under the condition that the first electronic device and the N second electronic devices carried by the user are configured with the target step counting model, the first electronic device can determine a target correction mode according to error types of the first electronic device and the N second electronic devices, and correct the first step number based on the first step number and the N second step numbers according to the target correction mode to obtain the first correction step number, so that the correction of the first step number is associated with carrying positions of the electronic devices, and step counting accuracy of the first electronic device at different carrying positions can be further improved.
In this embodiment of the present invention, the acquiring the carrying positions of the first electronic device and the N second electronic devices may be that the first electronic device and the N second electronic devices respectively detect positions carried on the user body by their own inertial sensor data in the target step counting period, and use the detected positions as the carrying positions, and the N second electronic devices respectively transmit the carrying positions thereof to the first electronic device through the wireless communication module, so that the first electronic device may detect the carrying positions thereof and receive the carrying positions of the N second electronic devices.
Before the step 102, the electronic device (terminal or server, etc.) may collect a large amount of acceleration sensor data, classify the collected acceleration sensors according to different carrying positions, respectively input the acceleration sensors at different carrying positions into the optimized target step counting model, obtain step counting precision information (including errors and probability distribution conditions) of the target step counting model at each carrying position, and divide the scene of the user carrying the electronic device at different carrying positions into M error categories according to the different step counting precision information.
For example, the server may divide the following four error types based on a large amount of sensor data:
the type 1 electronic device is carried in a hand or on a wrist (such as a mobile phone, a watch or a bracelet, etc.), and the error and distribution conditions are as follows: one oscillation period of the data of the acceleration sensor is actually two steps, but the target step counting model probably fails to count one step, and 10% -20% probability is reduced by half steps;
the type 2 and the carrying position of the electronic equipment are placed in a trouser pocket (such as the electronic equipment is a mobile phone and the like), and the error and distribution conditions are as follows: the actual steps of a shorter peak plus a higher peak of the acceleration sensor data are two steps, and the algorithm accuracy is about 99%;
The type 3, the carrying position of the electronic equipment is on the waistband, put in a coat pocket or put on the nose bridge (if the electronic equipment is a mobile phone or intelligent glasses, etc.), and the error and distribution conditions are as follows: one oscillation period of the data of the acceleration sensor is one step, the error caused by the interference action or noise is about 2%, and the algorithm accuracy is about 98%;
the type 4 electronic equipment is carried in a pocket or a knapsack bag (such as a mobile phone) and the error and distribution conditions are as follows: the two oscillation periods of the acceleration sensor data are actually 1 step, and may be 2 steps, and the probability of 10% -20% is doubled.
It should be noted that, the collected data of the acceleration sensor may include data collected under different crowd, different scenes, different actions, different carrying positions, different movement speeds, and the like, so that accuracy of error classification can be ensured.
In addition, when the first electronic device obtains the carrying positions of the first electronic device and the carrying positions of the N second electronic devices, the first electronic device may determine, according to the carrying positions associated with the M error categories, error categories associated with the carrying positions of the first electronic device and the N second electronic devices, as the error categories of the first electronic device and the N second electronic devices, respectively.
For example, when the user carries a mobile phone, a wristwatch, and wears glasses, if the mobile phone is a first electronic device and is located in a pocket of the user, the error class of the first electronic device is the type 4, the error class of a second electronic device that is the wristwatch is the type 1, and the error class of the second electronic device that is the glasses is the type 3.
In this embodiment of the present application, when the first electronic device determines the error type of the first electronic device and the error types of the N second electronic devices, the first electronic device may determine a target correction manner according to the error type of the first electronic device and the error types of the N second electronic devices, and correct the first step number according to the target correction manner, to obtain the first correction step number.
Wherein, the correcting the first step number according to the first correction step number may include: and under the condition that the first error category and the second error category exist in the error categories of the first electronic equipment and the N second electronic equipment, the first electronic equipment eliminates the steps of the electronic equipment with the first error category from the first steps and the N second steps, takes the average value of the steps of the electronic equipment with the second error category as the first correction steps, wherein the first error category is an error category with the accuracy rate smaller than a preset threshold value, and the second error category is an error category with the accuracy rate larger than or equal to the preset threshold value.
It should be noted that the preset threshold may be an accuracy preset in the first electronic device.
For example, in the case that the user pants pocket carries a mobile phone (i.e., the first electronic device) and wears a watch and smart glasses (i.e., the 2 second electronic devices), the mobile phone may determine that the error type is type 2, the error type of the watch is type 1, and the error type of the smart glasses is type 3, and then the mobile phone may take the average of the counted steps (i.e., the first step number) and the counted steps (i.e., the second step number) of the smart glasses as the first comparison positive step number, and reject the counted steps of the watch.
Or, based on the first step number and the N second step numbers, correcting the first step number according to a target correction mode to obtain a first correction step number, which may include:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the error types of the first electronic device and the N second electronic devices are the same.
Here, in the case that the error types of the first electronic device and the N second electronic devices are the same, the first electronic device may directly use the average value of the first step number and the N second step numbers as the first correction step number, so that the step counting accuracy of the first electronic device may be ensured, and the step counting correction efficiency of the first electronic device may be improved.
For example, in the case that the user carries a mobile phone (i.e., the first electronic device) and a smart glasses (i.e., the second electronic device), and one mobile phone is located in the jacket pocket, then the error types of the mobile phone and the smart glasses are both of type 3, and at this time, the mobile phone may take the average of the counted steps and the counted steps of the smart glasses as the first correction steps.
Or, based on the first step number and the N second step numbers, correcting the first step number according to a target correction mode to obtain a first correction step number, which may include:
under the condition that error categories of the first electronic device and N second electronic devices are different, determining target electronic devices and i electronic devices in the first electronic device and the N second electronic devices, wherein the accuracy of the error category of the target electronic device is greater than or equal to a preset threshold value, the accuracy of the error category of each electronic device in the i electronic devices is smaller than the preset threshold value, and i is a positive integer smaller than or equal to N;
respectively correcting the statistical steps of the i pieces of electronic equipment based on the statistical steps of the target electronic equipment to obtain i pieces of second correction steps, wherein the statistical steps are the steps counted by the target step counting model in the target step counting period;
Taking the average value of the i second correction steps and the statistical steps of j electronic devices as a first correction step, wherein the j electronic devices are as follows: and among the first electronic device and the N second electronic devices, electronic devices except the i electronic devices are selected.
Here, in the first electronic device and the N second electronic devices, under the condition that there are a target electronic device with an error category accuracy greater than or equal to a preset threshold and i electronic devices with an error category accuracy less than the preset threshold, the first electronic device corrects the step count counted by the electronic device with the error category accuracy less than the preset threshold, and then takes the average value of the step count counted by the electronic device with the error category accuracy greater than or equal to the preset threshold and the correction step count of the i electronic devices as the first correction step count, thereby further improving the accuracy of the first correction step count and further improving the step count accuracy of the first electronic device.
In this embodiment of the present invention, in the first electronic device and the N second electronic devices, the determining the target electronic device and the i electronic devices may be determining one electronic device with an accuracy rate of an error class greater than or equal to a preset threshold as the target electronic device, and determining all electronic devices with an accuracy rate of an error class less than the preset threshold as the i electronic devices.
For example, in the case where the preset accuracy is 90%, assuming that the M error types are included in the types 1 to 4, the first electronic device may determine one electronic device having an error type of type 2 or type 3 as the target electronic device, and determine all electronic devices having an error type of type 1 and type 4 as i electronic devices.
It should be noted that, in the first electronic device and the N second electronic devices, if there are at least two electronic devices with an accuracy rate of an error class greater than or equal to a preset threshold, the first electronic device may randomly select any one of the at least two electronic devices as the target electronic device; alternatively, an electronic device with the highest accuracy of the error class may be selected as the target electronic device, and so on.
In addition, the step number based on the statistics of the target electronic device may be obtained by correcting the step numbers of the i electronic devices, respectively, to obtain i second correction step numbers, where the first electronic device may correct the step numbers of the i electronic devices, respectively, by using the step numbers of the statistics of the target electronic device as a reference standard. For example, the statistical steps of i electronic devices may be updated to the statistical steps of the target electronic device, and so on.
Specifically, the correcting the statistics step number of the i electronic devices based on the statistics step number of the target electronic device to obtain i second correction step numbers may include:
obtaining a target ratio between the statistical steps of the third electronic equipment and the statistical steps of the target electronic equipment;
and determining the product of the statistical step number of the target electronic equipment and the target correction quantity associated with the target ratio as the statistical step number of the third electronic equipment.
It should be noted that, the correction amount associated with the ratio may be a predetermined correspondence between the ratio and the correction amount; alternatively, a correspondence relationship between the ratio range and the correction amount may be preset, the correction amount having a correspondence relationship with the ratio range in which the target ratio is located may be determined as the target correction amount, and so on.
For example, assuming that the user carries a mobile phone (first electronic device) and a watch (N second electronic devices), and the mobile phone is located in a trouser pocket, the error type of the mobile phone is the above type 2, and the error type of the watch is the above type 1, if the ratio of the number of statistical steps of the mobile phone (i.e. the target electronic device) to the number of statistical steps of the watch (i.e. the i electronic devices) is between [1.9,2.1] in the above target statistical period (e.g. 10s, etc.), it is indicated that an error of half of the number of missed steps may occur in the watch, at this time, the mobile phone multiplies the number of statistical steps of the watch by 2 to be the actual number of steps (i.e. the second correction number), and takes the average value of the number of statistical steps of the mobile phone and the calculated actual number of steps of the watch as the correction number of steps of the mobile phone (i.e. the first correction number of steps);
Or, assuming that the user carries a mobile phone (first electronic device) and glasses (N second electronic devices), and the mobile phone is located in the backpack, then the error type of the mobile phone is type 4, and the error type of the glasses is type 3, if the ratio of the counted steps of the mobile phone (i.e. i electronic devices) to the counted steps of the glasses (i.e. the target electronic devices) is [1.9,2.1] within the target counting period, it is stated that an error of one time more steps possibly occurs in the watch, at this time, the counted steps of the mobile phone are divided by 2 to be the actual steps (i.e. the second correction steps), and the calculated average value of the actual steps of the mobile phone and the counted steps of the glasses is taken as the correction steps (i.e. the first correction steps) of the mobile phone;
etc.
It should be noted that, after the first electronic device updates the counted step number from the first step number to the first correction step number, the first correction step number may be counted into the counted total step number of the first electronic device, so that the counted total step number of the first electronic device in the movement process is accurate.
It should be noted that, in the method for step number statistics provided in the embodiment of the present application, the execution body may be a step number statistics device, or a control module of the method for step number statistics in the step number statistics device. In the embodiment of the present application, a method for executing step count statistics by using a step count statistics device is taken as an example, and the step count statistics device provided in the embodiment of the present application is described.
Referring to fig. 2, an embodiment of the present application provides a step number statistics apparatus, which is applied to a first electronic device, where the first electronic device is any one of a plurality of electronic devices carried by a user, and as shown in fig. 2, the step number statistics apparatus 200 includes:
the step number obtaining module 201 is configured to obtain a first step number and N second step numbers counted in a target step counting period, where the first step number is a step number counted by the first electronic device, the second step number is a step number counted by a second electronic device, the second electronic device is an electronic device other than the first electronic device among the plurality of electronic devices, and the N is a positive integer;
a step number correction module 202, configured to generate a first correction step number based on the first step number and N second step numbers;
and the step number updating module 203 is configured to update the step number counted by the first electronic device from the first step number to the first correction step number.
Here, the step number statistics device 200 generates a first correction step number according to the first step number counted by the first electronic device in the target step counting period and the N second step numbers counted by the N second electronic devices in the target step counting period, and updates the first step number to the first correction step number.
Optionally, the step number correction module 202 includes:
a calculating sub-module, configured to calculate a sum of absolute values of deviations of the first step number and the N second step numbers, where the sum of absolute values of deviations is: the sum of absolute values obtained by subtracting two steps from each other between the first step number and N second step numbers respectively;
the comparison result generation sub-module is used for generating a comparison result based on the magnitude relation between the sum of the absolute values of the deviations and a preset threshold value;
and the step number correction submodule is used for correcting the first step number according to a correction mode corresponding to the comparison result to obtain a first correction step number.
Here, the step counting device 200 may correct the first step number according to a correction manner corresponding to the comparison result according to a comparison result of the sum of absolute values of deviations of the first step number and the N second step numbers and a preset threshold, so that different correction manners may be adopted to correct when the comparison result is different, and accuracy of step counting of the first electronic device under different scenes is improved.
Optionally, the step number correction submodule is specifically configured to:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the sum of the absolute values of the deviations is smaller than or equal to the preset threshold value.
Here, in the case that the fluctuation between the step count counted by the first electronic device and the step count counted by the N second electronic devices carried by the user is small, the step count counting apparatus 200 directly uses the average value of the step counts counted by the first electronic device and the N second electronic devices as the correction step count of the first step count, so that not only the possibility that the step count deviation occurs in the first electronic device can be reduced, but also the step count correction efficiency of the first electronic device can be improved.
Optionally, the first step number and the N second step numbers are step numbers counted by the target step counting model.
Here, the first electronic device and the N second electronic devices are provided with the same step counting model (i.e., the target step counting model), so that the step counting accuracy of the first electronic device can be further improved.
Optionally, in the case that the first step number and the N second step numbers are both step numbers counted by the target step counting model, the step number correction submodule includes:
the carrying position obtaining unit is used for obtaining carrying positions of the first electronic equipment and the N second electronic equipment respectively under the condition that the sum of the absolute values of the deviation is larger than the preset threshold value;
The error category determining unit is configured to determine error categories of the first electronic device and the N second electronic devices, where the error category of each electronic device corresponds to a carrying position of the electronic device, and the M error categories are: the step counting precision information of the target step counting model under each carrying position is divided into categories according to different carrying positions in advance, wherein M is an integer greater than 1;
and the step number correction unit is used for correcting the first step number according to a target correction mode based on the first step number and the N second step numbers to obtain a first correction step number, wherein the target correction mode is associated with error categories of the first electronic equipment and the N second electronic equipment.
Here, in the case where the first electronic device and the N second electronic devices are configured with the target step counting model, the step counting device 200 may determine a target correction manner according to an error category of the first electronic device and the N second electronic devices, and correct the first step number based on the first step number and the N second step numbers according to the target correction manner, so as to obtain the first correction step number, so that the correction of the first step number is associated with the carrying positions of each electronic device, and step counting accuracy of the first electronic device in different carrying positions may be further improved.
Optionally, the step number correction unit is specifically configured to:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the error types of the first electronic device and the N second electronic devices are the same.
Here, the step count statistics apparatus 200 may directly use the average value of the first step count and the N second step counts as the first correction step count when the error types of the first electronic device and the N second electronic devices are the same, so that the step count accuracy of the first electronic device may be ensured, and the step count correction efficiency of the first electronic device may be improved.
Optionally, the step number correction unit includes:
a device determining subunit, configured to determine, in the first electronic device and the N second electronic devices, a target electronic device and i electronic devices when error categories of the first electronic device and the N second electronic devices are different, where an accuracy of the error category of the target electronic device is greater than or equal to a preset threshold, an accuracy of the error category of each of the i electronic devices is less than the preset threshold, and i is a positive integer less than or equal to N;
The first correction subunit is used for respectively correcting the statistical steps of the i electronic devices based on the statistical steps of the target electronic device to obtain i second correction steps, wherein the statistical steps are the steps counted by the target step counting model in the target step counting period;
a second correction subunit, configured to take an average value of the i second correction steps and the statistical steps of j electronic devices as a first correction step, where the j electronic devices are: and among the first electronic device and the N second electronic devices, electronic devices except the i electronic devices are selected.
Here, in the first electronic device and the N second electronic devices, when there are a target electronic device whose error class accuracy is greater than or equal to a preset threshold and i electronic devices whose error class accuracy is less than the preset threshold, the step counting device 200 corrects the step number counted by the electronic device whose error class accuracy is less than the preset threshold, and then uses the average value of the step number counted by the electronic device whose error class accuracy is greater than or equal to the preset threshold and the correction step number of the i electronic devices as the first correction step number, thereby further improving the accuracy of the first correction step number and further improving the step counting accuracy of the first electronic device.
The step number counting device in the embodiment of the application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.
The step count counting device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
The step counting device provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 1, and in order to avoid repetition, a description is omitted here.
Optionally, as shown in fig. 3, the embodiment of the present application further provides an electronic device 300, where the electronic device is the first electronic device in the embodiment of the method of fig. 1, and the electronic device 300 includes a processor 301, a memory 302, and a program or an instruction stored in the memory 302 and capable of running on the processor 301, where the program or the instruction implements each process of the foregoing step count counting method embodiment when executed by the processor 301, and the process may achieve the same technical effect, and is not repeated herein.
The first electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.
Fig. 4 is a schematic hardware structure of an electronic device implementing an embodiment of the present application. The electronic device 400 is a first electronic device in the method embodiment of fig. 1, and the first electronic device is any one of a plurality of electronic devices carried by a user.
The electronic device 400 includes, but is not limited to: radio frequency unit 401, network module 402, audio output unit 403, input unit 404, sensor 405, display unit 406, user input unit 407, interface unit 408, memory 409, and processor 410.
Those skilled in the art will appreciate that the electronic device 400 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 410 by a power management system to perform functions such as managing charge, discharge, and power consumption by the power management system. The electronic device structure shown in fig. 4 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than shown, or may combine certain components, or may be arranged in different components, which are not described in detail herein.
Wherein the processor 410 is configured to:
acquiring a first step number counted in a target step counting period and N second step numbers, wherein the first step number is the step number counted by the first electronic equipment, the second step number is the step number counted by the second electronic equipment, the second electronic equipment is electronic equipment except the first electronic equipment in the plurality of electronic equipment, and N is a positive integer;
generating a first correction step number based on the first step number and N of the second step numbers;
and updating the step number counted by the first electronic equipment from the first step number to the first correction step number.
Here, the electronic device 400 generates the first correction step number according to the first step number counted by the electronic device in the target step counting period and the N second step numbers counted by the N second electronic devices in the target step counting period, and updates the first step number into the first correction step number, so, through the embodiment of the application, the electronic device 400 can correct the step number counted by the electronic device through the step number counted by the plurality of electronic devices carried by the user in the movement process, thereby reducing the possibility of deviation in step counting of the electronic device 400 and further improving the accuracy of step counting of the electronic device 400.
Optionally, the processor 410 is specifically configured to:
calculating the sum of absolute values of deviations of the first step number and the N second step numbers, wherein the sum of absolute values of deviations is: the sum of absolute values obtained by subtracting two steps from each other between the first step number and N second step numbers respectively;
generating a comparison result based on the magnitude relation between the sum of the absolute values of the deviations and a preset threshold value;
and correcting the first step number according to a correction mode corresponding to the comparison result to obtain a first correction step number.
Here, the electronic device 400 may correct the first step number according to a correction manner corresponding to the comparison result according to a comparison result of the sum of deviation absolute values of the first step number and the N second step numbers and a preset threshold, so that the comparison result may be corrected in different correction manners when different, thereby improving the accuracy of step counting of the electronic device 400 in different scenes.
Optionally, the processor 410 is specifically configured to:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the sum of the absolute values of the deviations is smaller than or equal to the preset threshold value.
Here, in the case where the fluctuation between the step count counted by the electronic device 400 and the step counts counted by the N second electronic devices carried by the user is small, the electronic device 400 directly uses the average value of the step counts counted by the electronic device 400 and the N second electronic devices as the correction step count of the first step count, so that not only the possibility that the step count deviation occurs in the electronic device 400 can be reduced, but also the step count correction efficiency of the electronic device 400 can be improved.
Optionally, the first step number and the N second step numbers are step numbers counted by the target step counting model.
Here, the electronic device 400 and the N second electronic devices are provided with the same step counting model (i.e., the target step counting model), so that the accuracy of step counting of the electronic device 400 may be further improved.
Optionally, in the case that the first step number and the N second step numbers are both the step numbers counted by the target step counting model, the processor 410 is specifically configured to:
under the condition that the sum of the absolute values of the deviation is larger than the preset threshold value, carrying positions of the first electronic equipment and N second electronic equipment are respectively obtained;
In the M error categories, the error categories of the first electronic device and the N second electronic devices are respectively determined, wherein the error category of each electronic device corresponds to the carrying position of the electronic device, and the M error categories are as follows: the step counting precision information of the target step counting model under each carrying position is divided into categories according to different carrying positions in advance, wherein M is an integer greater than 1;
and correcting the first step number according to a target correction mode based on the first step number and the N second step numbers to obtain a first correction step number, wherein the target correction mode is associated with error categories of the first electronic equipment and the N second electronic equipment.
Here, in the case where the electronic device 400 and the N second electronic devices are configured with the target step counting model, the electronic device 400 may determine a target correction manner according to the error types of the electronic device 400 and the N second electronic devices, and correct the first step number based on the first step number and the N second step numbers according to the target correction manner, so as to obtain the first correction step number, so that the correction of the first step number is associated with the carrying positions of each electronic device, and step counting accuracy of the electronic device 400 in different carrying positions may be further improved.
Optionally, the processor 410 is specifically configured to:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the error types of the first electronic device and the N second electronic devices are the same.
Here, the electronic device 400 may directly use the average value of the first step number and the N second step numbers as the first correction step number when the error types of the electronic device 400 and the N second electronic devices are the same, so that the step counting accuracy of the electronic device 400 may be ensured, and the step counting correction efficiency of the electronic device 400 may be improved.
Optionally, the processor 410 is specifically configured to:
under the condition that error categories of the first electronic device and N second electronic devices are different, determining target electronic devices and i electronic devices in the first electronic device and the N second electronic devices, wherein the accuracy of the error category of the target electronic device is greater than or equal to a preset threshold value, the accuracy of the error category of each electronic device in the i electronic devices is smaller than the preset threshold value, and i is a positive integer smaller than or equal to N;
Respectively correcting the statistical steps of the i pieces of electronic equipment based on the statistical steps of the target electronic equipment to obtain i pieces of second correction steps, wherein the statistical steps are the steps counted by the target step counting model in the target step counting period;
taking the average value of the i second correction steps and the statistical steps of j electronic devices as a first correction step, wherein the j electronic devices are as follows: and among the first electronic device and the N second electronic devices, electronic devices except the i electronic devices are selected.
Here, in the electronic device 400 and the N second electronic devices, when there are a target electronic device whose error class accuracy is greater than or equal to a preset threshold and i electronic devices whose error class accuracy is less than the preset threshold, the electronic device 400 corrects the step count counted by the electronic device whose error class accuracy is less than the preset threshold, and then uses the average value of the step count counted by the electronic device whose error class accuracy is greater than or equal to the preset threshold and the correction step count of the i electronic devices as the first correction step count, thereby further improving the accuracy of the first correction step count and further improving the step count accuracy of the electronic device 400.
It should be appreciated that in embodiments of the present application, the input unit 404 may include a graphics processor (Graphics Processing Unit, GPU) 4041 and a microphone 4042, with the graphics processor 4041 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 407 includes a touch panel 4071 and other input devices 4072. The touch panel 4071 is also referred to as a touch screen. The touch panel 4071 may include two parts, a touch detection device and a touch controller. Other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein. Memory 409 may be used to store software programs as well as various data including, but not limited to, application programs and an operating system. The processor 410 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 410.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the above step counting method embodiment are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is provided herein.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or an instruction, implementing each process of the step number statistics method embodiment, and achieving the same technical effect, so as to avoid repetition, and no further description is provided here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (7)
1. A method for counting steps, which is applied to a first electronic device, wherein the first electronic device is any one of a plurality of electronic devices carried by a user, and the method comprises:
acquiring a first step number counted in a target step counting period and N second step numbers, wherein the first step number is the step number counted by the first electronic equipment, the second step number is the step number counted by the second electronic equipment, the second electronic equipment is electronic equipment except the first electronic equipment in the plurality of electronic equipment, and N is a positive integer;
generating a first correction step number based on the first step number and N of the second step numbers;
updating the step number counted by the first electronic equipment from the first step number to the first correction step number;
said generating a first correction step based on said first step number and N said second step numbers, comprising:
calculating the sum of absolute values of deviations of the first step number and the N second step numbers, wherein the sum of absolute values of deviations is: the sum of absolute values obtained by subtracting two steps from each other between the first step number and N second step numbers respectively;
generating a comparison result based on the magnitude relation between the sum of the absolute values of the deviations and a preset threshold value;
Correcting the first step number according to a correction mode corresponding to the comparison result to obtain a first correction step number;
and correcting the first step number according to a correction mode corresponding to the comparison result under the condition that the first step number and the N second step numbers are both the step numbers counted by the target step counting model, so as to obtain a first correction step number, wherein the method comprises the following steps:
under the condition that the sum of the absolute values of the deviation is larger than the preset threshold value, carrying positions of the first electronic equipment and N second electronic equipment are respectively obtained;
in the M error categories, the error categories of the first electronic device and the N second electronic devices are respectively determined, wherein the error category of each electronic device corresponds to the carrying position of the electronic device, and the M error categories are as follows: the step counting precision information of the target step counting model under each carrying position is divided into categories according to different carrying positions in advance, wherein M is an integer greater than 1;
and correcting the first step number according to a target correction mode based on the first step number and the N second step numbers to obtain a first correction step number, wherein the target correction mode is associated with error categories of the first electronic equipment and the N second electronic equipment.
2. The method of claim 1, wherein correcting the first step number in a correction manner corresponding to the comparison result to obtain a first correction step number comprises:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the sum of the absolute values of the deviations is smaller than or equal to the preset threshold value.
3. The method of claim 1, wherein correcting the first step number in a target correction manner based on the first step number and N second step numbers to obtain a first correction step number comprises:
under the condition that error categories of the first electronic device and N second electronic devices are different, determining target electronic devices and i electronic devices in the first electronic device and the N second electronic devices, wherein the accuracy of the error category of the target electronic device is greater than or equal to a preset threshold value, the accuracy of the error category of each electronic device in the i electronic devices is smaller than the preset threshold value, and i is a positive integer smaller than or equal to N;
respectively correcting the statistical steps of the i pieces of electronic equipment based on the statistical steps of the target electronic equipment to obtain i pieces of second correction steps, wherein the statistical steps are the steps counted by the target step counting model in the target step counting period;
Taking the average value of the i second correction steps and the statistical steps of j electronic devices as a first correction step, wherein the j electronic devices are as follows: and among the first electronic device and the N second electronic devices, electronic devices except the i electronic devices are selected.
4. An apparatus for step count statistics, applied to a first electronic device, where the first electronic device is any one of a plurality of electronic devices carried by a user, the apparatus comprising:
the step number acquisition module is used for acquiring a first step number counted in a target step counting period and N second step numbers, wherein the first step number is counted by the first electronic equipment, the second step number is counted by the second electronic equipment, the second electronic equipment is electronic equipment except the first electronic equipment, and the N is a positive integer;
the step number correction module is used for generating a first correction step number based on the first step number and N second step numbers;
the step number updating module is used for updating the step number counted by the first electronic equipment from the first step number to the first correction step number;
The step number correction module comprises:
a calculating sub-module, configured to calculate a sum of absolute values of deviations of the first step number and the N second step numbers, where the sum of absolute values of deviations is: the sum of absolute values obtained by subtracting two steps from each other between the first step number and N second step numbers respectively;
the comparison result generation sub-module is used for generating a comparison result based on the magnitude relation between the sum of the absolute values of the deviations and a preset threshold value;
the step number correction submodule is used for correcting the first step number according to a correction mode corresponding to the comparison result to obtain a first correction step number;
in the case that the first step number and the N second step numbers are both the step numbers counted by the target step counting model, the step number correction submodule includes:
the carrying position obtaining unit is used for obtaining carrying positions of the first electronic equipment and the N second electronic equipment respectively under the condition that the sum of the absolute values of the deviation is larger than the preset threshold value;
the error category determining unit is configured to determine error categories of the first electronic device and the N second electronic devices, where the error category of each electronic device corresponds to a carrying position of the electronic device, and the M error categories are: the step counting precision information of the target step counting model under each carrying position is divided into categories according to different carrying positions in advance, wherein M is an integer greater than 1;
And the step number correction unit is used for correcting the first step number according to a target correction mode based on the first step number and the N second step numbers to obtain a first correction step number, wherein the target correction mode is associated with error categories of the first electronic equipment and the N second electronic equipment.
5. The device according to claim 4, wherein the step number correction submodule is specifically configured to:
and determining the average value of the first step number and the N second step numbers as a first correction step number under the condition that the sum of the absolute values of the deviations is smaller than or equal to the preset threshold value.
6. The apparatus according to claim 4, wherein the step number correction unit includes:
a device determining subunit, configured to determine, in the first electronic device and the N second electronic devices, a target electronic device and i electronic devices when error categories of the first electronic device and the N second electronic devices are different, where an accuracy of the error category of the target electronic device is greater than or equal to a preset threshold, an accuracy of the error category of each of the i electronic devices is less than the preset threshold, and i is a positive integer less than or equal to N;
The first correction subunit is used for respectively correcting the statistical steps of the i electronic devices based on the statistical steps of the target electronic device to obtain i second correction steps, wherein the statistical steps are the steps counted by the target step counting model in the target step counting period;
a second correction subunit, configured to take an average value of the i second correction steps and the statistical steps of j electronic devices as a first correction step, where the j electronic devices are: and among the first electronic device and the N second electronic devices, electronic devices except the i electronic devices are selected.
7. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the step count method of any one of claims 1-3.
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| CN107289966A (en) * | 2016-03-30 | 2017-10-24 | 日本电气株式会社 | Method and apparatus for counting step number |
| CN108362304A (en) * | 2018-02-09 | 2018-08-03 | 维沃移动通信有限公司 | A kind of data processing method and mobile terminal |
| CN110108296A (en) * | 2019-04-19 | 2019-08-09 | 北京金山安全软件有限公司 | Step counting method, electronic equipment and computer readable storage medium |
| CN110132303A (en) * | 2019-05-21 | 2019-08-16 | 出门问问信息科技有限公司 | Step counting test data collection method, storage medium and electronic equipment |
| CN111416904A (en) * | 2020-03-13 | 2020-07-14 | 维沃移动通信有限公司 | Data processing method, electronic device and medium |
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| US10001386B2 (en) * | 2014-04-03 | 2018-06-19 | Apple Inc. | Automatic track selection for calibration of pedometer devices |
| CN112902983B (en) * | 2021-01-26 | 2024-04-05 | 维沃移动通信有限公司 | Step number counting method and device and electronic equipment |
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| CN107289966A (en) * | 2016-03-30 | 2017-10-24 | 日本电气株式会社 | Method and apparatus for counting step number |
| CN108362304A (en) * | 2018-02-09 | 2018-08-03 | 维沃移动通信有限公司 | A kind of data processing method and mobile terminal |
| CN110108296A (en) * | 2019-04-19 | 2019-08-09 | 北京金山安全软件有限公司 | Step counting method, electronic equipment and computer readable storage medium |
| CN110132303A (en) * | 2019-05-21 | 2019-08-16 | 出门问问信息科技有限公司 | Step counting test data collection method, storage medium and electronic equipment |
| CN111416904A (en) * | 2020-03-13 | 2020-07-14 | 维沃移动通信有限公司 | Data processing method, electronic device and medium |
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