WO2010000458A1

WO2010000458A1 - Device for checking posture during sports-related courses of movement

Info

Publication number: WO2010000458A1
Application number: PCT/EP2009/004747
Authority: WO
Inventors: Matthias Braun; Andreas Singer; Jürgen Wulschnig; Eckhard Voltmann; Bastian Voltmann; Gerhard Mackinger
Original assignee: Matthias Braun; Andreas Singer; Wulschnig Juergen; Eckhard Voltmann; Bastian Voltmann; Gerhard Mackinger
Priority date: 2008-07-02
Filing date: 2009-07-01
Publication date: 2010-01-07
Also published as: DE202008008727U1

Abstract

The invention relates to a device for checking posture during sports-related courses of movement, having at least two sensors, each detecting a pressure, wherein the device has at least one module for detecting exclusively at least one difference value between the detected pressures of the at least two sensors.

Description

Device for checking the posture during sportive movements

description

The invention relates to a device for checking the attitude in athletic movement sequences with at least two sensors each detecting a pressure.

The prior art (G 93 08 611.3) includes a learning aid for skiers. This learning aid has the form of Inside of a ski boot shaft preferably in the tibial region. The learning aid is worn in the ski boot between the leg and boot leg and is connected to a power supply and an acoustic signal generator. This learning aid belonging to the prior art is designed such that when a preset pressure value is exceeded, pressure sensors arranged in one or more regions of the learning aid generate electrical signals with which the acoustic signal generator is activated.

This belonging to the prior art device has the disadvantage that at least one pressure value must be preset. This pressure value depends, for example, on how tightly the ski boot is closed. If, for example, the ski boot is closed more tightly than assumed when the pressure value is set, the acoustic signal generator is activated without this being necessary. As a result, the device belonging to the prior art becomes prone to error and too expensive.

The technical problem underlying the invention is to provide a device for improving the posture in athletic movements, which is simple in construction and which is independent of preset pressure values or limits.

This technical problem is solved by a device having the features according to claim 1.

The device according to the invention is characterized in that it has at least two sensors each sensing a pressure and that the device has at least one module for detecting exclusively at least one Having difference value between the detected pressures of at least two sensors.

According to the invention, therefore, no desired value or limit value is predetermined, but at least two sensors are present, and the values of these sensors are compared. If the value of one sensor is greater than the value of another sensor, a message is issued.

According to a particularly preferred embodiment of the invention, the device is designed to improve the posture of a skier. For this purpose, at least one sensor in the region of a calf and at least one sensor in the region of a tibia of a ^' skier is arranged. In addition, a stimulus and / or vibration triggering device is provided. The device triggers a stimulus and / or a vibration when the at least one module detects a difference between the at least two sensors and the pressure of the "calf sensor" is greater than that of the "tibial sensor".

With the device according to the invention it is possible in a simple manner to improve the attitude of a skier while skiing, for example, the value of the sensor rear of the calf is greater than the value of the sensor front of the tibia, a message in the form of a stimulus or a vibration.

The device according to the invention can also be provided very advantageously in the monitoring of a movement sequence, for example, a runner. For this purpose, at least two sensors are arranged in the region of a foot sole of a runner. Each sensor is assigned a respective upstream and / or downstream sensor. In addition, once again, the stimulus or vibration that triggers direction. A stimulus and / or a vibration are triggered when the at least one module for detecting the difference values detects the difference values in an order deviating from a fixed sequence.

According to the invention, for example, four sensors are arranged in a sneaker, which must be addressed according to a predetermined sequence in order to ensure a correct sequence. This means that first the first sensor, then the second sensor, then the third sensor and then the fourth sensor should be addressed. The differential values of the pressures of the sensors are detected. If this order is deviated, triggering of a stimulus and / or vibration occurs again.

In addition, there is the possibility in a movement "walking on the forefoot" that the device according to the invention recognizes that the sequence is reduced from, for example, four to, for example, two sensors and continues to work analogously to the defined sequence.

According to the invention, only a comparison of the values of the pressure-sensing sensors takes place, and the difference between these values is formed.

According to a further advantageous embodiment of the invention, the device for improving the posture while skiing is arranged on a cuff. The device can thereby be used independently of the ski boot used.

According to a further advantageous embodiment of the invention, the device is arranged in a sock. This also ensures that the device is Depending on the ski boot or running shoe or the like can be used.

However, it is also possible to arrange the device directly in a ski boot.

According to the invention, signal conditioning and / or evaluation electronics are advantageously provided in order to be able to further process the values detected by the sensors.

In addition, a switching element is advantageously provided. If, for example, the value of the sensor on the calf is greater than the value of the sensor on the tibia of the skier, then the stimulus and / or a vibration-triggering device is activated via the switching element.

According to the invention, at least one stimulus transmitter is provided in order to be able to transmit a fault or an error in the course of motion to the athlete after evaluation of the sensor signals.

According to a further advantageous embodiment of the invention, at least one power supply is provided, which is advantageously designed in the form of a battery or a rechargeable battery, so that the device is supplied with power.

The at least one sensor can be resistive in the simplest case. The resistance changes depending on the applied force. This type of sensor is very easy to evaluate. The sensors can also be capacitive. The capacity varies depending on how much the sensor is compressed.

It is also possible to use inductive sensors. The inductance changes depending on the deformation of a coil. It is also possible to change the coupling of two coils.

The sensor can also be designed optoelectronic. This changes the passage of light.

The sensor can also be based on the piezo effect and release a voltage when force is applied. There is also the possibility that he performs a force upon application of force, which is more or less damped by external force, which can also be detected.

The evaluation electronics can be designed purely analog. Digital electronics with a microcontroller as a central element is less expensive. An A / D converter on the chip of Mikrokσntrollers is state of the art and facilitates further signal evaluation.

In addition, a software specially written for the application is advantageously provided. In the case when an incorrect posture is detected, this controls the stimulus generator via the switching element. This control is advantageously somewhat delayed. For example, the device should not respond if, for example, the athlete goes completely normal without the skis.

As a switching element, for example, a transistor may be provided. The stimulus generator can advantageously be a vibrating element. It is also a sounder conceivable. It is also possible to apply a stimulation current.

As a power source, a button cell is advantageously provided. However, it is also possible to integrate batteries in a printed circuit board. Outside the shoe is also given the opportunity to use a larger and commercially available battery.

The triggering of the stimulus, for example, as a stimulus current or via a vibration element can be done by means of a line between the sensors and the switching element for the stimulus generator. However, it is also possible to provide a radio connection between the sensors and the switching element.

According to a particularly preferred embodiment of the invention, the at least two pressure sensors are formed from a current-conducting yarn or thread, wherein the yarn or thread changes an electrical resistance under pressure. In this way, it is possible to directly integrate the pressure sensors, for example in a ski stocking by incorporating the yarn in the area of the calf and the tibia, without additional sensors having to be arranged in the stocking by additional manipulations. Additional sensors would also affect the well-being of the person concerned.

According to a further advantageous embodiment of the invention, the lines are also formed by the sensor to an evaluation of electrically conductive yarn, which are arranged between the pressure sensors and the evaluation circuit, that is preferably incorporated. In a ski sock the lines are wise knitted and provide a connection between the pressure sensors advantageously formed from yarn and the evaluation circuit.

According to a further advantageous embodiment of the invention, push buttons are provided at one end of the power lines, whose counterparts are arranged on the evaluation circuit. In this way can be attached to the stocking the evaluation in the form of a board or the like.

Also in a shoe, for example, the sole or a ski boot, the lining may be formed such that the pressure sensors from the respective yarn, which is conductive and current changes in pressure, the electrical resistance are integrated.

Further features and advantages of the invention will become apparent from the accompanying drawings. In the drawing, several embodiments of the device according to the invention are shown, namely show:

1 shows a stocking with two sensors in side view;

Figure 2 is an outsole of a shoe in plan view.

Fig. 3 shows a modified embodiment of a

Stocking shown in side view with two sensors partially unfolded.

Fig. 1 shows a stocking 1, which is for example attracted to skiing. In the stocking 1 is in the area a calf a sensor 2 and a sensor 3 in the region of a tibia. An evaluation 4 is arranged in a cuff 5 of the sock 1.

The sensors 2, 3 are designed as pressure-detecting sensors. The values of the sensors 2, 3 are compared in the evaluation unit 4. If the value of the sensor 2 is greater than the value of the sensor 3, this is detected by the transmitter 4 and passed on to a stimulus triggering device 6. The skier feels the attraction on his leg and realizes that he is too far in the supine position, that is, too much pressure generated between calf and ski boot, so that he should bend forward again and thus an improved attitude to skiing occupies.

Fig. 2 shows an outsole 7 of a sports shoe (not shown). In the sole 7 sensors 8, 9, 10, 11, 12 are arranged.

In an evaluation 13, which may be integrated in the shoe sole, an order of the sensors 8, 9, 10, 11, 12 is determined, according to the sensors 8, 9, 10, 11, 12 to be addressed. This means that, for example, the sensor 12 must first be subjected to pressure in a corresponding running style. This is detected by detecting the pressure difference of the sensors 11, 12. Subsequently, the pressure on the sensor 11 must be greatest. This is detected by the transmitter 13 by comparing the pressure values of the sensors 10 and 11 and so on.

The device according to the invention according to FIGS. 1 and 2 has the advantage that no absolute limit values or nominal values are set, but that always the Differences between the sensors 2, 3; 8, 9, 10, 11, 12 recorded and used for the evaluation.

The arrangement of the sensors 8 to 12 takes place depending on the application example. For a normal running shoe, for example, the sensors 8, 9 and 12 are sufficient, wherein the sensor 8 is advantageously arranged in the region of the big toe (not shown).

For running shoes that are used for rehabilitation, for example, it is advantageous to provide the sensors 8, 9, 11 and 12.

For persons with amputations, it may be necessary, for example, to provide more sensors than the sensors 8 to 12 shown in FIG. 2 or to arrange the sensors at other locations.

Fig. 3 shows a ski stocking 14 with a pressure sensor 15 and a pressure sensor 16. The pressure sensors 15, 16 are meandering formed from a yarn which is electrically conductive and changes an electrical resistance under pressure. In addition, lines 17, 18, 19 are provided, which also consist of an electrically conductive yarn. The yarn of the lines 17, 18, 19 has a lower electrical resistance than the yarn of the pressure sensors 15, 16. The lines 17, 18, 19 open into push buttons 20, 21, 22, to which the evaluation circuit can be attached. The evaluation circuit (not shown) has accumulators that can be charged. In addition, the circuit carries a device for generating a vibration (not shown). The yarn of the pressure sensors 15, 16 and the lines 17, 18, 19 is knitted in the stocking 14, so that when wearing the ski stocking 14 neither the sensors 15, 16 nor the lines , 18, 19 are noticeable.

reference numerals

1 stocking

2 sensor

3 sensor

4 evaluation electronics

5 cuffs

6 Stimulation device

7 outsole

8 sensor

9 sensor

10 sensor

11 sensor

12 sensor

13 evaluation electronics

14 ski stocking

15 pressure sensor (shinbone sensor)

16 pressure sensor (calf sensor)

17 line

18 line

19 line

20 push button

21 push button

22 push button

Claims

claims

1. A device for checking the posture in athletic movement sequences with at least two pressure sensors each, characterized in that the device comprises at least one module (4, 13) for detecting only at least one difference value between the detected pressures of the at least two sensors (2, 3 8 to 12, 15, 16).

2. Device according to claim 1, characterized in that at least one sensor (2, 16) in the region of a calf and at least one sensor (3, 15) in the region of a tibia of a skier is arranged, and that a stimulus and / or a Vibration triggering device

(6), and that the device (6) triggers a stimulus and / or a vibration when the at least one module (13) detects a difference between the at least two sensors (2, 3, 15, 16) and the pressure value of the sensor

(2) is greater than the pressure value of the sensor (3).

3. Device according to claim 1, characterized in that at least _. _^ two sensors (8 to 12) are arranged in the region of a foot sole of a runner that each sensor (8 to 12) is associated with a respective upstream and / or a nachgeord- neter sensor (8 to 12), that a stimulus and or a vibration-initiating device is provided, and that the device triggers a stimulus and / or vibration when adjacent sensors (8 to 12) detect a pressure difference between these sensors (8 to 12) according to an order deviating from a fixed sequence.

4. Apparatus according to claim 2, characterized in that the device is arranged in a sleeve.

5. Device according to one of claims 1 to 3, characterized in that the device in a sock (1, 14) is arranged.

6. Apparatus according to claim 2, characterized in that the device is arranged in a ski boot.

7. Device according to one of the preceding claims, characterized in that a signal conditioning and / or an evaluation (4, 13) is provided.

8. Device according to one of the preceding claims, characterized in that a switching element is provided.

9. Device according to one of the preceding claims, characterized in that at least one stimulus generator (6) is provided.

10. Device according to one of the preceding claims, characterized in that at least one power supply is provided.

11. Device according to one of the preceding claims, characterized in that at least one resistive, capacitive, inductive, opto-electronic or piezo-effect-based sensor (2, 3, 8 to 12, 15, 16) is provided is.

12. Device according to one of the preceding claims, characterized in that the at least one Pressure sensor (15, 16) is formed from a current-conducting yarn or thread, wherein the yarn or the thread has a changing electrical resistance at a pressure on the yarn or the thread.

13. Device according to one of the preceding claims, characterized in that the current and / or signal line, a current-conducting yarn or thread is provided.

14. The device according to any one of claims 12 or 13, characterized in that the yarn or thread is incorporated in a sock (1, 14) or a sole (7) of a shoe or in a cuff or in a lining of a ski boot.