CN113539467A - Intelligent wristband capable of measuring height and weight and measuring method thereof - Google Patents
Intelligent wristband capable of measuring height and weight and measuring method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of intelligent bracelets and discloses an intelligent bracelet capable of measuring height and weight and a measuring method thereof. According to the intelligent bracelet capable of measuring the height and the weight and the measuring method thereof, a user can measure the height and the weight of the user at any time and any place in real time by wearing the intelligent bracelet, the user can know the change of the height and the weight of the user in real time conveniently, and the measuring method is scientific and high in accuracy.
Description
Technical Field
The invention relates to the technical field of intelligent bracelets, in particular to an intelligent bracelet capable of measuring height and weight and a measuring method thereof.
Background
The invention designs an intelligent bracelet capable of measuring the height and the weight of a person at any time and any place, and the height and the weight of the person can be measured at any time and any place by wearing the intelligent bracelet.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the intelligent bracelet capable of measuring the height and the weight and the measuring method thereof, which can solve the problems that people pay more and more attention to the height and the weight of the people in the existing life, call to measure every time, worry that the people around see the bracelet, do not want to be disclosed to other people, lack privacy and cannot conveniently measure the height and the weight at any time; according to the intelligent bracelet capable of measuring height and weight and the measuring method thereof, the problems in the prior art are effectively solved.
In order to realize the purpose of the intelligent bracelet capable of measuring height and weight and the measuring method thereof, the invention provides the following technical scheme: the utility model provides an intelligence bracelet of measurable quantity height weight, includes intelligent bracelet main part, the inside embedded computational element that is provided with of intelligent bracelet main part, fixed mounting has miniature range finding sensor, laser radar sensor, unipolar gyroscope sensor and mutual unit in the intelligent bracelet main part, the inside battery unit that still is provided with of intelligent bracelet main part.
Preferably, the embedded computing unit is an integrated circuit chip, and a wireless communication data module, a bluetooth transmission module, a data acquisition module, a data analysis module and a data storage module are arranged in the embedded computing unit;
the wireless communication data module is used for the internet data connection of the intelligent bracelet and the handheld intelligent device;
the Bluetooth transmission module is used for the intelligent bracelet and the handheld intelligent equipment to perform Bluetooth data transmission;
the data acquisition module, the data analysis module and the data storage module are respectively used for acquiring, analyzing and processing data acquired by the miniature distance measuring sensor, the laser radar sensor and the single-axis gyroscope sensor and storing the data.
Preferably, the interaction unit includes an LED display screen and a mechanical control button, and is used for the user to determine whether the calculation result is accurate and how much error is.
Preferably, the battery unit is rechargeable lithium cell, the battery unit is used for providing the electric energy supply for electronic parts in the intelligent bracelet including embedded computational unit, miniature range finding sensor, laser radar sensor, unipolar gyroscope sensor and mutual unit.
Further, the method for measuring the height of the intelligent bracelet specifically comprises the following steps,
acquiring a large amount of human body sample data to establish a function mathematical model y (f) (a) of height y and height a of a wrist from the ground, a function mathematical model y (f) (b) of height y and height b of a shoulder, and a function mathematical model z (f) (y) of head length z and height y;
step two, after the user wears the bracelet, the user makes corresponding actions through corresponding human-computer interaction, if the hand naturally droops, the user makes swing arm actions, the amplitude of the swing arm of the user is obtained through detection of the single-shaft gyroscope sensor, namely the arm swings to one side from the vertical direction by an angle alpha, and the farthest height L of the bracelet from the ground is obtained through detection of the miniature distance measuring sensor and the laser radar sensor2And a minimum height L from the ground1；
Acquiring the data through a sensor, wherein one data is the amplitude of swing and the other data is the height from the ground, reading the data through an embedded computing unit by the smart bracelet, analyzing the acquired data, and calculating the height of the human body through a y ═ f (b) mathematical model;
step four, the intelligent bracelet provides a corresponding interactive interface, and height parameter data are displayed through the interactive unit, so that a user can confirm whether the calculation result is accurate and the error is large;
and fifthly, after the user interaction is finished, the intelligent bracelet uploads correct data to the handheld intelligent terminal application through the wireless Bluetooth transmission module, the handheld intelligent terminal application stores new sample data by using the background server, and the previously established function mathematical model y of height and shoulder height is updated to f (b).
Wherein, the method for establishing the function model in the first step comprises the following steps of searching enough people for height test, obtaining information such as wrist distance to the ground, arm length, height and the like, storing the information as sample data, establishing a mathematical model, wherein the higher the height is, the higher the wrist distance to the ground is, so that the height y and the wrist distance to the ground a satisfy the primary function mathematical model, namely y ═ f (a), the height is not enough to calculate the height by the wrist distance to the ground, the shoulder distance to the ground is required to calculate the shoulder height according to the arm length, the higher the height is, the higher the shoulder distance to the ground is, so the height y and the shoulder height b satisfy the primary function mathematical model, namely y ═ f (b), the difference of the legs and the body lengths of the general people is, the head length is also modeled according to z ═ f (y), and the sample data is sufficiently large, the error is reduced.
Wherein, in the third step, the height of the human body is calculated by a mathematical model of y ═ f (b), the shoulder height b is calculated by the following mathematical calculation method,
let L3 be L2-L1，
Let the arm length be R, the mathematical formula satisfy cos alpha ═ R-L3)/R，
To obtain R ═ L3/(1-cosα)，
Then b is equal to R + L1，
Wherein L is1Is the closest height of the bracelet to the ground, i.e. the bracelet when the arm is at a vertical height to the horizontal planeVertical height to the ground, L2The farthest height of the bracelet from the ground, i.e. the vertical height of the bracelet and the horizontal plane when the arm is at the maximum amplitude of oscillation, L3Is L2And L1Alpha is the swing angle of the arm from the vertical direction to the maximum swing amplitude.
Further, the method for measuring the weight of the intelligent bracelet specifically comprises the following steps:
step a, implanting a pressure sensor in a user shoe;
b, when the feet of the user touch the ground, assuming that the weight of the shoes is ignored, the gravity of the user is vertically downward, the pressure applied to the pressure sensors is vertical to the ground, the pressure applied to the user is uniformly distributed to the pressure sensors in the two shoes, and the pressure values applied to the two pressure sensors are added to be the gravity of the user;
and c, the user lands on the ground with one foot, the pressure sensor of one shoe bears 0, the pressure sensor of the other shoe bears the gravity of the whole person, the pressure sensor acquires the gravity of the person, data are synchronized to the handheld intelligent terminal through the Bluetooth transmission module, and the handheld intelligent terminal is synchronized to the intelligent bracelet through wireless communication.
Compared with the prior art, the invention provides the intelligent bracelet capable of measuring the height and the weight and the measuring method thereof, and the intelligent bracelet has the following beneficial effects:
according to the intelligent bracelet capable of measuring the height and the weight and the measuring method thereof, a user can measure the height and the weight of the user at any time and any place in real time by wearing the intelligent bracelet, the user can know the change of the height and the weight of the user in real time conveniently, and the measuring method is scientific and high in accuracy.
Drawings
FIG. 1 is a schematic view of the overall structure of an intelligent bracelet of the present invention;
FIG. 2 is a schematic diagram of an internal structure of an embedded computing unit according to the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of an intelligent bracelet of the present invention;
FIG. 4 is a schematic diagram illustrating the height measurement principle of the intelligent bracelet of the invention;
fig. 5 is a schematic diagram illustrating the weight measurement principle of the smart band of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an intelligent bracelet capable of measuring height and weight comprises an intelligent bracelet main body, wherein an embedded computing unit is arranged in the intelligent bracelet main body, a micro distance measuring sensor, a laser radar sensor, a single-shaft gyroscope sensor and an interaction unit are fixedly mounted on the intelligent bracelet main body, and a battery unit is further arranged in the intelligent bracelet main body.
In summary, the method for measuring height of the intelligent bracelet comprises the following steps,
acquiring a large amount of human body sample data to establish a function mathematical model y (f) (a) of height y and height a of a wrist from the ground, a function mathematical model y (f) (b) of height y and height b of a shoulder, and a function mathematical model z (f) (y) of head length z and height y;
step two, after the user wears the bracelet, the user makes corresponding actions through corresponding human-computer interaction, if the hand naturally droops, the user makes swing arm actions, the amplitude of the swing arm of the user is obtained through detection of the single-shaft gyroscope sensor, namely the arm swings to one side from the vertical direction by an angle alpha, and the farthest height L of the bracelet from the ground is obtained through detection of the miniature distance measuring sensor and the laser radar sensor2And a minimum height L from the ground1；
Acquiring the data through a sensor, wherein one data is the amplitude of swing and the other data is the height from the ground, reading the data through an embedded computing unit by the smart bracelet, analyzing the acquired data, and calculating the height of the human body through a y ═ f (b) mathematical model;
step four, the intelligent bracelet provides a corresponding interactive interface, and height parameter data are displayed through the interactive unit, so that a user can confirm whether the calculation result is accurate and the error is large;
and fifthly, after the user interaction is finished, the intelligent bracelet uploads correct data to the handheld intelligent terminal application through the wireless Bluetooth transmission module, the handheld intelligent terminal application stores new sample data by using the background server, and the previously established function mathematical model y of height and shoulder height is updated to f (b).
The function model establishing method in the first step is that enough people are searched for height test, information such as wrist distance to the ground, arm length, height and the like is obtained, the information is stored as sample data, a mathematical model is established, the height of the wrist to the ground is higher for the higher height people, so the height y and the height a of the wrist to the ground satisfy a linear function mathematical model, namely y ═ f (a), the height is not enough to calculate the height by the wrist distance to the ground, the shoulder distance to the ground is required to be calculated according to the arm length, the higher height people have higher shoulders to the ground, therefore, the height y and the shoulder height b also satisfy the linear function mathematical model y ═ f (b), the height difference of general people is that the leg length and the body length are different, the head length is also established according to z ═ f (y), and the sample data is sufficiently large, the error is reduced.
Referring to fig. 4, in step three, the height of the human body is calculated by using a mathematical model of y ═ f (b), and the shoulder height b is calculated by the following method,
let L3 be L2-L1，
Let the arm length be R, the mathematical formula satisfy cos alpha ═ R-L3)/R，
To obtain R ═ L3/(1-cosα)，
Then b is equal to R + L1，
Wherein L is1Is the nearest height of the bracelet from the ground, i.e. the vertical height of the bracelet from the ground when the arm is at a vertical height perpendicular to the horizontal plane, L2Is a bracelet spaced from the groundThe farthest height of the hand ring, i.e. the vertical height of the hand ring and the horizontal plane when the arm swings to the maximum, L3Is L2And L1Alpha is the swing angle of the arm from the vertical direction to the maximum swing amplitude,
b is calculated through a mathematical model, and then the height of the human body can be calculated through the mathematical model of y ═ f (b);
referring to fig. 5, a method for measuring weight of an intelligent bracelet capable of measuring height and weight specifically includes the following steps: firstly, implanting a pressure sensor in a user shoe; then, when the feet of the user touch the ground, assuming that the weight of the shoes is ignored, the gravity of the user is vertically downward, the pressure applied to the pressure sensors is vertical to the ground, the pressure applied to the user is uniformly distributed to the pressure sensors in the two shoes, and the pressure values applied to the two pressure sensors are added to be the gravity of the user; when the user is landed on one foot, the pressure that the pressure sensor of a shoes received is 0, and the pressure sensor of another shoes has just born whole people's gravity, and after pressure sensor obtained people's gravity, it is synchronous to handheld intelligent terminal to pass through bluetooth transmission module with data, and handheld intelligent terminal is synchronous to intelligent bracelet through wireless communication again.
The working use process and the installation method of the intelligent bracelet are that when the intelligent bracelet capable of measuring height and weight and the measuring method of the intelligent bracelet are used, a user can measure the height and weight of the user anytime and anywhere in real time by wearing the intelligent bracelet, the user can know the change of the height and weight of the user in real time conveniently, and the measuring method is scientific and has high accuracy.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an intelligent bracelet of measurable quantity height weight which characterized in that: including intelligent bracelet main part, the inside embedded computational unit that is provided with of intelligent bracelet main part, fixed mounting has miniature range finding sensor, laser radar sensor, unipolar gyroscope sensor and mutual unit in the intelligent bracelet main part, the inside battery unit that still is provided with of intelligent bracelet main part.
2. The intelligent bracelet of claim 1 capable of measuring height and weight, wherein: the embedded computing unit is an integrated circuit chip, and a wireless communication data module, a Bluetooth transmission module, a data acquisition module, a data analysis module and a data storage module are arranged in the embedded computing unit;
the wireless communication data module is used for the internet data connection of the intelligent bracelet and the handheld intelligent device;
the Bluetooth transmission module is used for the intelligent bracelet and the handheld intelligent equipment to perform Bluetooth data transmission;
the data acquisition module, the data analysis module and the data storage module are respectively used for acquiring, analyzing and processing data acquired by the miniature distance measuring sensor, the laser radar sensor and the single-axis gyroscope sensor and storing the data.
3. The intelligent bracelet of claim 1 capable of measuring height and weight, wherein: the interaction unit comprises an LED display screen and a mechanical control key, and is used for confirming whether the calculation result is accurate and the error of the calculation result is large.
4. The intelligent bracelet of claim 1 capable of measuring height and weight, wherein: the battery unit is rechargeable lithium cell, the battery unit is used for providing the electric energy supply for electronic parts in the intelligent bracelet including embedded calculating unit, miniature range finding sensor, laser radar sensor, unipolar gyroscope sensor and interactive unit.
5. The utility model provides a measuring method of intelligent bracelet of height weight which characterized in that: the intelligent bracelet for measuring height and weight according to claims 1-4, wherein the method for measuring height comprises the following steps,
acquiring a large amount of human body sample data to establish a function mathematical model y (f) (a) of height y and height a of a wrist from the ground, a function mathematical model y (f) (b) of height y and height b of a shoulder, and a function mathematical model z (f) (y) of head length z and height y;
step two, after the user wears the bracelet, the user makes corresponding actions through corresponding human-computer interaction, if the hand naturally droops, the user makes swing arm actions, the amplitude of the swing arm of the user is obtained through detection of the single-shaft gyroscope sensor, namely the arm swings to one side from the vertical direction by an angle alpha, and the farthest height L of the bracelet from the ground is obtained through detection of the miniature distance measuring sensor and the laser radar sensor2And a minimum height L from the ground1；
Acquiring the data through a sensor, wherein one data is the amplitude of swing and the other data is the height from the ground, reading the data through an embedded computing unit by the smart bracelet, analyzing the acquired data, and calculating the height of the human body through a y ═ f (b) mathematical model;
step four, the intelligent bracelet provides a corresponding interactive interface, and height parameter data are displayed through the interactive unit, so that a user can confirm whether the calculation result is accurate and the error is large;
and fifthly, after the user interaction is finished, the intelligent bracelet uploads correct data to the handheld intelligent terminal application through the wireless Bluetooth transmission module, the handheld intelligent terminal application stores new sample data by using the background server, and the previously established function mathematical model y of height and shoulder height is updated to f (b).
6. The method for measuring the height and weight of the smart bracelet according to the step one of claim 5, wherein the method comprises the following steps: the function model establishing method comprises the following steps of searching enough people for height test, obtaining information such as wrist distance to the ground, arm length, height and the like, storing the information as sample data, establishing a mathematical model, wherein the higher the height of the person is, the higher the wrist distance to the ground is, so the height y and the wrist distance to the ground a meet the primary function mathematical model, namely y is f (a), the height is not enough to calculate the height by the wrist distance to the ground, the shoulder distance to the ground is required to be calculated according to the arm length, the higher the height of the person is, the higher the shoulder distance to the ground is, therefore, the height y and the shoulder height b meet the primary function mathematical model y is f (b), the height difference of the general persons is that the leg length and the body length are different, the head length is also established according to z is f (y), and the sample data is enough to be obtained, the error is reduced.
7. The intelligent bracelet measuring method capable of measuring height and weight according to the third step of claim 5, wherein the method comprises the following steps: the height of the human body is calculated by a mathematical model of y ═ f (b), the shoulder height b is calculated by the following mathematical calculation method,
let L3 be L2-L1，
Let the arm length be R, the mathematical formula satisfy cos alpha ═ R-L3)/R，
To obtain R ═ L3/(1-cosα)，
Then b is equal to R + L1，
Wherein L is1Is the nearest height of the bracelet from the ground, i.e. the vertical height of the bracelet from the ground when the arm is at a vertical height perpendicular to the horizontal plane, L2The farthest height of the bracelet from the ground, i.e. the vertical height of the bracelet and the horizontal plane when the arm is at the maximum amplitude of oscillation, L3Is L2And L1Alpha is the swing angle of the arm from the vertical direction to the maximum swing amplitude.
8. The utility model provides a measuring method of intelligent bracelet of height weight which characterized in that: the intelligent wristband capable of measuring height and weight according to claims 1-4, wherein the method for measuring weight specifically comprises the following steps:
step a, implanting a pressure sensor in a user shoe;
b, when the feet of the user touch the ground, assuming that the weight of the shoes is ignored, the gravity of the user is vertically downward, the pressure applied to the pressure sensors is vertical to the ground, the pressure applied to the user is uniformly distributed to the pressure sensors in the two shoes, and the pressure values applied to the two pressure sensors are added to be the gravity of the user;
and c, the user lands on the ground with one foot, the pressure sensor of one shoe bears 0, the pressure sensor of the other shoe bears the gravity of the whole person, the pressure sensor acquires the gravity of the person, data are synchronized to the handheld intelligent terminal through the Bluetooth transmission module, and the handheld intelligent terminal is synchronized to the intelligent bracelet through wireless communication.
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