Intelligent height measuring device and measuring method

Abstract

An intelligent height measurement device, which relates to the technical field of height measurement. It includes a mobile phone terminal and a measuring device; the measuring device includes: a housing; a USB plug provided on one side of the housing for assembling the USB interface of the mobile phone terminal; a USB OTG power supply module provided in the housing; an MCU Bluetooth module provided in the housing for communicating with the mobile phone terminal; and an ultrasonic sensor provided at one end of the housing away from the mobile phone terminal for obtaining the measurement value a between the measuring device and the ground when receiving the measurement instruction of the mobile phone terminal; a horizontal angle sensor for detecting the horizontal angle B of the measuring device is provided in the mobile phone terminal; an embedded algorithm for calculating the vertical distance from the measuring device to the ground is installed in the mobile phone terminal, and the algorithm is cosB*a. The above technical solution has the advantages of compact structure, easy storage and carrying, convenient use and accurate measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of height measurement, and in particular to an intelligent height measurement device and a measurement method. Background Art

[0002] In daily life, we often need to measure height, especially for children. Regularly measuring children's height can timely understand whether the child's development and nutritional status meet normal indicators. It is very important to establish a complete and detailed growth file for the child. In this way, problems that arise during the child's development process can be reflected in time and measures can be taken as soon as possible.

[0003] At present, the main methods used to measure children's height at home are rulers and wall stickers. Manual height measurement is inconvenient and requires manual reading, resulting in large errors. In the prior art, a large number of electronic scales with a ruler rod are used. The ruler rod is provided with a baffle, which moves up and down along the ruler rod. The height of a person is measured by the ruler height calibrated by the baffle. This mechanical contact measurement is more convenient than a ruler, but there are the same problems, that is, there is a large measurement error in manual reading of data, the reading speed is slow, and the device is bulky and requires a certain amount of space. Although some intelligent height measuring instruments have horizontal angle sensors, they only provide alarm prompts in non-horizontal states, and cannot intelligently measure vertical distances. Manual leveling is still required, which increases the difficulty of operation, easily affects the measurement results, and has great limitations in use. Summary of the invention

[0004] The first purpose of the present invention is to provide an intelligent height measurement device in view of the defects and shortcomings of the prior art, which has the advantages of compact structure, easy storage and carrying, convenient use and accurate measurement.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an intelligent height measurement device, comprising: a mobile phone terminal, a measuring device; the measuring device comprises: a shell; a USB plug provided on one side of the shell and used to be assembled on the USB interface of the mobile phone terminal; a USB OTG power supply module provided in the shell; an MCU Bluetooth module provided in the shell and used to communicate with the mobile phone terminal; and an ultrasonic sensor provided at one end of the shell away from the mobile phone terminal and used to obtain a measurement value a between the measuring device and the ground when receiving a measurement instruction from the mobile phone terminal; a horizontal angle sensor for detecting a horizontal angle B of the measuring device is provided in the mobile phone terminal; an embedded algorithm for calculating the vertical distance from the measuring device to the ground is installed in the mobile phone terminal, and the algorithm is cosB*a.

[0006] According to a further configuration of the present invention, the intelligent height measurement device also includes a cloud server communicatively connected to the mobile phone terminal, and the cloud server is used to store the vertical distance calculated by the mobile phone terminal and draw a curve based on historical values ​​for user reference.

[0007] According to a further configuration of the present invention, the ultrasonic sensor acquires a set A of measurement values ​​between the measuring device and the ground within one second after the measuring device receives the measurement instruction.

[0008] According to a further configuration of the present invention, the measuring device further comprises a data processing module, which is used to screen the valid measurement values ​​a' greater than 30 cm in the set A, and use a bubble sort method to select the middle segment values ​​and then take the average value to obtain the specific measurement value a.

[0009] According to a further configuration of the present invention, an indicator light is provided on one side of the housing for reminding when the measuring device is successfully connected to the mobile phone terminal.

[0010] The second object of the present invention is to provide an intelligent height measurement method to solve the problems of inconvenient operation, large measurement error and slow reading speed of height measuring instruments in the prior art.

[0011] The above object of the present invention is achieved through the following technical solutions:

[0012] An intelligent height measurement method, the method is based on the above intelligent height measurement device, the method comprises:

[0013] S1: Insert the measuring device into the USB port of the mobile phone terminal, and open the mobile phone APP and Bluetooth to connect the measuring device;

[0014] S2: Place the measuring device and the mobile phone terminal on the head of the person to be measured, trigger the measurement button of the mobile phone terminal, and the person to be measured leaves the measurement area;

[0015] S3: The measuring device receives the measurement instruction through the MCU Bluetooth module, and the ultrasonic sensor measures the measurement data set A within one second after receiving the measurement instruction;

[0016] S4: The data processing module screens the valid measurement data a' greater than 30 cm in the set A, selects the middle segment values ​​by bubble sorting method, takes the average value to obtain the specific measurement value a, and sends it to the mobile terminal;

[0017] S5: The mobile terminal receives the measured value a, detects the horizontal angle B in combination with its own horizontal angle sensor, and obtains the vertical distance cosB*a through a software algorithm;

[0018] S6: At the same time, the mobile terminal uploads the calculated vertical distance to the cloud server, which saves it and draws a curve based on the historical values.

[0019] After adopting the above technical solution, the beneficial effects of the present invention are:

[0020] 1. In the present invention, a measuring device that is used in conjunction with a mobile phone terminal is provided. First, an ultrasonic sensor detects the distance from the measuring device to the ground. Then, the horizontal angle of the measuring device is detected in combination with a horizontal angle sensor in the mobile phone terminal. Finally, the vertical distance is obtained by intelligently calculating the mobile phone terminal software. This can avoid detection deviations of the measuring device in a non-horizontal state. Compared with the prior art, the present invention is easy to use and can obtain accurate vertical distances without manual leveling, thereby effectively improving the accuracy of the measurement results and the applicability of the product.

[0021] 2. The measuring device in the present invention has a compact structure, occupies little space and is easy to carry. It can be assembled together with a mobile phone terminal for easy operation, and obtains a set of measurement values ​​within one second after receiving the measurement command, which can effectively reduce the error caused by shaking when the user holds the hand in the air, and further improve the accuracy of measurement. At the same time, the mobile phone terminal also uploads the intelligently calculated vertical distance to the cloud server for storage. The cloud server draws a curve based on the historical values, which is beneficial for users to analyze and compare, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the measuring device in the present invention;

[0025] Figure 3 It is a schematic diagram of calculating the vertical distance in the present invention;

[0026] Figure 4 Flow chart of the measurement method in the present invention.

[0027] Explanation of the reference numerals: 01, measuring device; 02, mobile phone terminal; 1, housing; 2, USB plug; 3, USB OTG power supply module; 4, MCU Bluetooth module; 5, ultrasonic sensor; 6, data processing module; 7, indicator light. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0030] This embodiment relates to an intelligent height measurement device, such as Figure 1 As shown, it includes: a mobile terminal 02, a measuring device 01; Figure 2 As shown, the measuring device 01 includes: a shell 1; a USB plug 2 provided at one side of the shell 1 and used to be assembled on the USB interface of the mobile phone terminal 02; a USB OTG power supply module 3 provided in the shell 1; an MCU Bluetooth module 4 provided in the shell 1 and used to communicate with the mobile phone terminal 02; and an ultrasonic sensor 5 provided at one end of the shell 1 away from the mobile phone terminal 02, the ultrasonic sensor 5 is used to obtain a measurement value a between the measuring device 01 and the ground when receiving a measurement instruction from the mobile phone terminal 02, wherein the mobile phone terminal 02 is provided with a horizontal angle sensor and an embedded algorithm for calculating the vertical distance from the measuring device 01 to the ground, and an indicator light 7 is provided on one side of the shell 1 for reminding when the measuring device 01 is successfully connected to the mobile phone terminal 02.

[0031] When in use, the ultrasonic sensor 5 first obtains the measurement value a and sends it to the mobile terminal 02 through the MCU Bluetooth module 4. The mobile terminal 02 combines the horizontal angle B of the measuring device 01 detected by its own horizontal angle sensor, such as Figure 3 As shown, the user's real height = the vertical distance from the measuring device 01 to the ground = b, that is, the embedded algorithm of the mobile terminal 02 is cosB*a. Therefore, when using it, there is no need to ensure that the measuring device 01 is completely horizontal, and the accurate vertical distance can be intelligently calculated, which can avoid detection deviation of the measuring device 01 in a non-horizontal state, thereby improving the accuracy of the measurement results and the applicability of the product.

[0032] Specifically, the measuring device 01 is assembled on the USB interface of the mobile phone terminal 02 through the USB plug 2, and is powered by the USB OTG power supply module 3. The MCU Bluetooth module 4 is a control unit with Bluetooth communication function. When in use, the measuring device 01 needs to be connected to the mobile phone terminal 02 through Bluetooth. The user makes a measurement instruction through the mobile phone terminal 02, and the measuring device 01 receives the measurement instruction through the MCU Bluetooth module 4 and controls the ultrasonic sensor 5 to obtain the measurement value a between the measuring device 01 and the ground. After the acquisition is completed, the measurement value a is sent to the mobile phone terminal 02 through the MCU Bluetooth module 4, and the mobile phone terminal 02 performs intelligent measurement in combination with the horizontal angle B detected by the horizontal angle sensor.

[0033] In this embodiment, the intelligent height measurement device also includes a cloud server that is communicatively connected to the mobile terminal 02. After measuring the vertical distance, the mobile terminal 02 uploads it to the cloud server for storage. At the same time, the cloud server can draw a curve based on historical values ​​for user reference. This is conducive to timely understanding whether the child's development and nutritional status meet normal indicators and establishing a complete and detailed growth file for the child.

[0034] It should be noted that, in order to ensure the accuracy of the measured value a, when the MCU Bluetooth module 4 receives the measurement instruction from the mobile terminal 02, it immediately controls the ultrasonic sensor 5 to obtain the measurement value set A between the measuring device 01 and the ground within one second, which can effectively reduce the error caused by the shaking of the user's hand in the air, and further improve the accuracy of the measurement. The measuring device 01 also includes a data processing module 6, which is used to screen the valid measurement values ​​a' greater than 30cm in the set A to avoid calculation errors, and uses the bubble sort method to select the middle segment value of the valid measurement value a' and then take the average value to obtain the specific measurement value a. In this way, the measurement value is closest to the actual measurement distance to a certain extent, ensuring the calculation accuracy of the vertical distance.

[0035] Based on the above-mentioned intelligent height measurement device 01, this embodiment also relates to an intelligent height measurement method, such as Figure 4 As shown, the method includes:

[0036] S1: Insert the measuring device 01 into the USB port of the mobile terminal 02, and open the mobile phone APP and Bluetooth to connect the measuring device 01;

[0037] S2: Place the measuring device 01 and the mobile terminal 02 together on the head of the person to be measured, trigger the measurement button of the mobile terminal 02, and the person to be measured leaves the measurement area;

[0038] S3: The measuring device 01 receives the measurement instruction through the MCU Bluetooth module 4, and the ultrasonic sensor 5 measures the measurement data set A within one second after receiving the measurement instruction;

[0039] S4: The data processing module 6 selects the valid measurement data a' greater than 30 cm in the set A, selects the middle segment value by bubble sorting method, and then takes the average value to obtain the specific measurement value a, and sends it to the mobile terminal 02;

[0040] S5: The mobile terminal 02 receives the measured value a, detects the horizontal angle B in combination with its own horizontal angle sensor, and obtains the vertical distance cosB*a through a software algorithm;

[0041] S6: At the same time, the mobile terminal 02 uploads the calculated vertical distance to the cloud server, which saves it and draws a curve based on the historical values.

[0042] The working principle of the present invention is roughly as follows: the measuring device 01 in the present invention has a compact structure, occupies a small space and is easy to carry. The ultrasonic sensor 5 detects the distance from the measuring device 01 to the ground, and then combines with the horizontal angle sensor in the mobile phone terminal 02 to detect the horizontal angle of the measuring device 01. Finally, the vertical distance is obtained by intelligent calculation through the mobile phone terminal 02 software, thereby avoiding detection deviation of the measuring device 01 in a non-horizontal state. Compared with the prior art, it is easy to use and can obtain accurate vertical distance without manual leveling, effectively improving the accuracy of the measurement structure and the applicability of the product.

[0043] The above is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An intelligent height measuring device, characterized in that: include: Mobile phone terminal (02), measuring device (01); The measuring device (01) comprises: a housing (1); A USB plug (2) provided on one side of the housing (1) and used for being assembled on a USB interface of the mobile phone terminal (02); A USB OTG power supply module (3) disposed in the housing (1); an MCU Bluetooth module (4) disposed in the housing (1) and used for communicating with the mobile phone terminal (02); and an ultrasonic sensor (5) disposed at an end of the housing (1) away from the mobile phone terminal (02) and used to obtain a measurement value a between the measuring device (01) and the ground when receiving a measurement instruction from the mobile phone terminal (02); The mobile phone terminal (02) is provided with a horizontal angle sensor for detecting the horizontal angle B of the measuring device (01); The mobile phone terminal (02) is equipped with an embedded algorithm for calculating the vertical distance from the measuring device (01) to the ground, and the algorithm is cosB*a; The intelligent height measurement device (01) further comprises a cloud server communicatively connected to the mobile phone terminal (02); The cloud server is used to store the vertical distance calculated by the mobile terminal (02) and draw a curve based on historical values ​​for user reference; The ultrasonic sensor (5) acquires a set of measurement values ​​A between the measuring device (01) and the ground within one second after the measuring device (01) receives a measurement instruction; The measuring device (01) further comprises a data processing module (6), wherein the data processing module (6) is used to screen valid measurement values ​​a' greater than 30 cm in the set A, and to select middle segment values ​​by bubble sorting and then take the average value to obtain a specific measurement value a.

2. The intelligent height measuring device according to claim 1, characterized in that: An indicator light (7) is provided on one side of the housing (1) for providing a reminder when the measuring device (01) is successfully connected to the mobile phone terminal (02).

3. An intelligent height measurement method, characterized in that: The method is based on the intelligent height measurement device according to any one of claims 1 to 2, and the method comprises: S1: Insert the measuring device (01) into the USB port of the mobile phone terminal (02), and open the mobile phone APP and Bluetooth to connect the measuring device (01); S2: placing the measuring device (01) and the mobile phone terminal (02) together on the head of the person to be measured, triggering the measuring button of the mobile phone terminal (02), and the person to be measured leaves the measuring area; S3: the measuring device (01) receives the measuring instruction via the MCU Bluetooth module (4), and the ultrasonic sensor (5) measures the measurement data set A within one second after receiving the measuring instruction; S4: The data processing module (6) selects valid measurement data a' greater than 30 cm in the set A, selects the middle segment value by bubble sorting method, and then takes the average value to obtain the specific measurement value a, and sends it to the mobile terminal (02); S5: The mobile terminal (02) receives the measured value a, detects the horizontal angle B in combination with its own horizontal angle sensor, and obtains the vertical distance cosB*a through a software algorithm; S6: At the same time, the mobile terminal (02) uploads the calculated vertical distance to the cloud server, which saves it and draws a curve based on the historical values.

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