Device and system for measuring and displaying the pressure distribution of a worn backpack using a sensor vest and mobile application

Abstract

Utility model claim Device for measuring the pressure distribution when wearing a backpack, comprising a vest (1) with at least eight pressure sensors (2a-2h), a control unit (3) for data acquisition and a wireless interface (4) for transmitting the sensor data to an external terminal device (5).

Description

Technical field

[0001] The present invention relates to a device and a system for detecting and analyzing the pressure distribution that occurs on a person's upper body when wearing a backpack or schoolbag. In particular, the invention relates to a vest equipped with sensors, an associated control device, and a mobile application for displaying the measured pressure values ​​and issuing adjustment recommendations. State of the art

[0002] Wearing backpacks can lead to health problems, particularly in the shoulders, back, and lumbar spine, due to uneven weight distribution or incorrect adjustment. While measurement systems for analyzing load distribution exist, there are currently no practical, wearable systems for the continuous and user-friendly analysis of backpack load. Object of the invention

[0003] The task is to provide a user-friendly, mobile system that enables precise pressure distribution measurement while wearing a backpack, visualizes the measurement results on a mobile application, and gives the user specific setting instructions for optimizing load distribution. Solution to the task

[0004] The task is accomplished by a vest (1) equipped with at least eight pressure sensors (2) positioned on relevant body areas – in particular, the right shoulder (2a), left shoulder (2b), right scapula (2c), left scapula (2d), right lumbar region (2e), left lumbar region (2f), right hip (2g), and left hip (2h). The sensors are connected to a control unit (3), which collects the measurement data and transmits it via a wireless Bluetooth connection (4) to an external device (5), such as a smartphone or tablet (iPad).

[0005] A mobile application (6) is installed on the terminal device (5) that visually displays the pressure distribution – preferably in the form of a traffic light system – and provides recommendations for the optimal adjustment of the backpack (7) based on the measured values. The application (6) also stores the user's personal data and technical data of the backpack being used in order to compare repeated measurements and generate individual recommendations. Examples of Implementation Example 1: Basic measurement in a stationary position

[0006] The sensor vest (1) is put on by the user, and the backpack is then placed on top. While the user stands upright, the sensors at all eight positions record the pressure values. The control unit (3) transmits the data to the mobile device (5) via a Bluetooth connection (4). The mobile application (6) displays the pressure distribution in real time as a color-coded traffic light system. Example 2: Dynamic measurement while walking

[0007] In this example, the measurement is taken during natural walking. The sensors (2) detect dynamic fluctuations in pressure load, particularly at the shoulder (2a, 2b), scapula (2c, 2d), and hip (2g, 2h). The mobile application (6) saves the measurement curves and compares them with standard ranges. Example 3: Bluetooth data transmission (associated drawing)

[0008] The drawing shows the sensor vest (1) connected to the control unit (3), which sends the measurement data via Bluetooth connection (4) to a smartphone or tablet (device (5)). The app (6) is open on the device, displaying the pressure readings (e.g., as a traffic light system). Example 4: Optimization recommendations

[0009] After the measurement is complete, the app (6) analyzes the data and makes specific suggestions for adjusting the backpack. For example, if there is increased pressure on the shoulders, it may suggest loosening the shoulder straps or tightening the hip belt.

[0010] In a preferred embodiment, the user wears the sensor vest (1) under the backpack. While being worn, the sensors (2) continuously record the pressure distribution. The control unit (3) processes the data and transmits it via Bluetooth (4) to the mobile application (6). The application displays the measured values ​​with color coding: green for optimal load, yellow for increased load, and red for critical pressure points. Additionally, instructions for adjusting the shoulder straps, chest strap, and hip belt are displayed. Advantages of the invention • Precise measurement of pressure distribution across multiple body areas. • User-friendly, real-time display via an app. • Specific recommendations for improving load distribution. • Storage of measurement data for trend analysis. • Suitable for everyday use and easy to handle. Reference symbol list 1 vest 2a Sensor shoulder right 2b Sensor shoulder left 2c Sensor right shoulder blade 2D sensor left shoulder blade 2nd sensor lumbar right 2f Sensor Lumbar Left 2g sensor, right hip 2h sensor hip left 3 Control unit 4 Bluetooth connection 5 Device (Smartphone / Tablet) 6 Mobile Application (App)

Claims

[1] Utility model claim Device for measuring the pressure distribution when wearing a backpack, comprising a vest (1) with at least eight pressure sensors (2a-2h), a control device (3) for data acquisition and a wireless interface (4) for transmitting the sensor data to an external terminal device (5). [2] Utility model claim Device according to claim 1, characterized by , that the pressure sensors are located at the right shoulder (2a), left shoulder (2b), right shoulder blade (2c), left shoulder blade (2d), right lumbar region (2e), left lumbar region (2f), right hip (2g) and left hip (2h). [3] Utility model claim Device according to one of the preceding claims, characterized by , that the control unit (3) transmits the measurement data via a wireless connection (4). [4] Utility model claim System for displaying the pressure distribution detected by means of a device according to one of the preceding claims, comprising a mobile application (6) that visualizes the measured values ​​and provides recommendations for adjusting a backpack. [5] Utility model claim System according to claim 4, characterized by , that the mobile application (6) displays the measurement data in the form of a traffic light system. [6] Utility model claim system according to one of the preceding claims, characterized by that user data and backpack data are stored.

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