DESC:CROSS- REFERENCE TO RELATED APPLICATION
[0001] This application claims the priority of the Indian Provisional Patent Application with serial number 6224/CHE/2014 filed on December 09, 2014 with the title, “SYSTEM AND METHOD FOR GAIT ANALYSIS AND DETERMINATION OF FOOT PRESSURE” and the contents of which is incorporated in entirety as reference herein.

A) TECHNICAL FIELD
[0002] The present invention is generally related to sensory devices and algorithms for analyzing foot dynamics during walking, running and sport activities. The present invention is particularly related to a standalone device, or an additional device that is integrated with a person’s footwear for determining a pressure exerted by a person’s feet. The present invention is more particularly related to a system and method for analysis of gait of a person and collection of pressure data from multiple locations of feet.

B) BACKGROUND OF THE INVENTION
[0003] A monitoring, measuring and analyzing foot dynamics while walking, running or other activities that predominantly uses the feet is critical for various diagnostic functions such as feet health determination, feet injury prevention, sports performance analysis and improvements and various other applications.
[0004] At present, a user performs the activities that need to be monitored in a laboratory setting with multiple sensors and equipments connected to the user for accurately measuring and analyzing the feet pressure. This precludes a monitoring of genuine user activity and biomechanics that would happen in the normal setting of the activity.
[0005] The currently available methods also lack a well-defined process of identification of sensor quantity and placement of sensors. This results in using either too many sensors (thereby making the equipment expensive, requiring frequent calibration and not portable), or too few sensors (thereby collecting only a partial data and without objective clarity on the accuracy metrics). The currently available methods of sensing also require collecting of various aspects of data, which is expensive in terms of power consumption, thereby requiring the electronics device to have a big battery and requiring frequent changing and/or charging of batteries.
[0006] In the current methods, the output rendered after the measurement and analysis of a pressure data is not contextual. While an athlete might be interested in only a generic analysis of the style of his running or movement, the athlete’s trainer might be more interested in a detailed analysis of the pressure exerted by different parts of the user’s feet during different actions of the feet. There is a need for an analytics tool for rendering a contextual output depending on the type of user.
[0007] Hence, there is a need for a foot pressure monitoring system to provide a measurement and analysis of feet pressure during an intended activity. There is also a need for analyses on activity-specific foot-pressure with minimal power consumption for the working for the pressure measurement device.
[0008] The abovementioned shortcomings, disadvantages and problems are addressed herein, which will be understood by reading and studying the following specification.

C) OBJECT OF THE INVENTION
[0009] The primary object of the present invention is to provide a standalone device, or an additional device that is integrated with a person’s footwear, for determining a pressure exerted by a person’s feet.
[0010] Another object of the present invention is to provide a system and method for a gait analysis of a person and collection of pressure data from the multiple locations on feet.
[0011] Yet another object of the present invention is to provide a method and system for foot and knee stress analysis and ground contact time measurement for runners and sportspersons in a non-contact manner.
[0012] Yet another objective of the present invention is provide a system and method to enable a monitoring and analysis of feet pressure data only with a standalone device or additional device that is integrated with a person’s footwear, without attaching any other extra device to the user.
[0013] Yet another objective of the present invention is to provide a system and method for providing a detailed analysis of foot and knee pressure for an athlete / runner / sprinter in “non-laboratory” environment using sensors deployed in the shoe.
[0014] Yet another objective of the present invention is to provide a system and method for accurately measuring a Ground Contact Time for a runner / sprinter, which is a critical metric for runners / sprinters.
[0015] Yet another objective of the present invention is to provide a system and method for foot and knee stress analysis and ground contact time measurement for runners and sportspersons to quantitatively determine a user’s chances (probability) of injuries using the data from the user’s actual in-the-field activity.
[0016] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time (of feet) measurement for runners and sportspersons to alert and warn users in case of deviation from intended form and style, that are either defined by the user themselves, or using a commonly-accepted set of metrics, during their activities, that may either cause injuries or decrease performance.
[0017] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement for each stride, to present an overall ground contact time as a ratio of the stride time, a rolling average of Ground contact time ratio over time, and a Ground contact time ratio per foot.
[0018] Yet another objective of the present invention is provide a system and method for estimation, reporting and display of knee stress (vertical and lateral) based on pressure data from the foot sensors.
[0019] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement to estimate whether the runner or athlete is over-pronating or under-pronating (supinating), based on the pressure data from foot sensors.
[0020] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement to provide trigger and alert to the user, when the user over-pronates, or puts excessive impact stress on their heels, arch, midsole or knee.
[0021] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement to trigger and provide the alerts to the user, when the user goes over or under a specific ground contact time metric.
[0022] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement to trigger and provide the alerts to the user when the user experiences lateral stress on their knees or over-pronates or under-pronates.
[0023] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement to provide the user with a video summary of their foot pressure and knee pressure data throughout their activity based on the data collected during the activity.
[0024] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement to provide the user an estimate or warning of potential injuries such as shin splints, Anterior knee pain syndrome, plantar fascia etc.
[0025] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement using the sensors that can generate the energy through piezoelectric effect, and enough to power the entire circuit without the need for any battery.
[0026] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement in which the sensor and analysis engine is tuned in the way to identify changes in terrain hardness, thereby bringing in the ability to determine if a particular kind of terrain is detrimental to the user, or what the user can do to increase their performance on that terrain.
[0027] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement in which the number and type of arrangement of sensors in the pressure measurement device is determined based on a user activity.
[0028] Yet another objective of the present invention is to provide a system and method for foot and knee stress analysis and ground contact time measurement in which only the discrete actions of the feet are measured and not a continuous pressure acted upon the feet is not calculated.
[0029] Yet another objective of the present invention is to provide a system and method for foot and knee stress analysis and ground contact time measurement in which a timing of pressure at various zones in the feet is measured to determine the pressure acting on the feet without a continuous measurement of pressure.
[0030] Yet another objective of the present invention is provide a system and method for foot and knee stress analysis and ground contact time measurement by measuring pressure exerted by a user’s feet using very less electrical energy than conventional pressure monitoring systems.
[0031] Yet another objective of the present invention is to provide a system and method of foot and knee stress analysis and ground contact time measurement in which electricity is generated from the physical actions performed by the user.
[0032] Yet another objective of the present invention is to provide a foot and knee stress analysis and ground contact time measurement to analyze and render pressure output in a plurality of mutually different formats.
[0033] Yet another objective of the present invention is to provide foot and knee stress analysis and ground contact time measurement to generate and provide the contextual reports about the gait analysis based on the person for whom the analysis is intended.
[0034] These and other objects and advantages of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.

D) SUMMARY OF THE INVENTION
[0035] The various embodiments of the present invention provide a standalone device, or an additional device that is integrated with a person’s footwear, for determining a pressure exerted by a person’s feet. According to one embodiment of the present invention, a system and method is provided for a foot and knee stress analysis and ground contact time measurement. A plurality of sensors is placed in the standalone or additional device to measure the pressure exerted by the feet. The measured pressure information is analyzed using analytics module and the results are rendered to a plurality of end-users.
[0036] According to an embodiment of the present invention, the device detects the pressure exerted by the user’s feet by measuring an exact timing of exertion and release of pressure by the user’s feet, during various actions performed by the user while carrying out the activity under monitoring. The number of sensors to be placed in the device is determined based on the type of activity that is monitored and the level of expected accuracy of the output. The device also measures the timing and location of peak pressure exerted by the feet.
[0037] According to an embodiment of the present invention, an analytics module is provided for determining a pressure data associated with feet and knees of the user. Multiple pressure sensors are arranged in a standalone device or an additional device to measure the pressure exerted by the feet based on the type of activity to be monitored. In the present invention, the timing of exertion and release of pressure at multiple locations in the feet are measured instead of measuring the pressure continuously. The measured pressure output signal is converted to digital pulse based on a basic threshold sensing value of a basic filter circuit. A microcontroller, which is wirelessly connected to the sensing device, records the multiple parameters of the sensed data. The analytics module calculates the pressure data and presents the output to the user based on the area of foot under pressure measurement and the time interval for which the pressure is exerted.
[0038] According to an embodiment of the present invention, the feet is divided into different pressure segments for analysis purposes. Each pressure segment holds a significance for different types of feet activities. The timing and the location of pressure applied at each localized segment are measured based on the activity that is monitored and the level of expected accuracy of the output readings. The parameters for determining the performance of the feet activity include factors such as ground contact time, stride length, push-off force exerted and landing position of the feet and knee, etc. The relative importance of various feet areas are determined based on the type of activity. A priority list is provided to the analytics module to carry out the analyses based on the priority of each pressure segment.
[0039] According to an embodiment of the present invention, pressure output signal from the device is converted to a digital signal based on basic threshold sensing value of a basic filtering circuit. If the value is below a specified threshold level, the filter sends logic “0”. If it is above a specified value, the filter sends logic “1”. The threshold value is tuned based on the activity and desired sensitivity. This digital pulse train from each sensor is used as an interrupt-provider to the data-collecting unit, which is a microcontroller. The microcontroller records the direction of the interrupt, the timestamp and some other values. The microcontroller conditions these values for onward transmission. This method ensures that the microcontroller unit is operated in low power mode as a default, in almost in all times. The microcontroller unit is activated only to collect and send data by the sensor exactly when needed. This ensures significant power savings in the device. Moreover, the peak value of the voltage and hence, the pressure is estimated by performing an appropriate calculations on the receiving computing device based on the knowledge of the sensor’s voltage ramp-up and ramp-down characteristics. Thus the accuracy of data is preserved even under extremely low-power data collecting and transmission conditions.
[0040] According to an embodiment of the present invention, the analyzed data is rendered to a plurality of end users. The amount of information in the analyzed and the output depends on the type of intended user.
[0041] According to an embodiment of the present invention, the analyzed data is contextually rendered to a plurality of end users. The various users are provided with mutually different access to a same data. The amount of information provided to the user and the format for presenting the information are varied or selected based on the type of end user. For example, while an athlete might be interested in only a generic analysis and overall performance metric of the style of his running, the athlete’s trainer might be more interested in a detailed analysis of the pressure exerted by different parts of the user’s feet during different actions of the feet.
[0042] These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiments and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiments herein without departing from the spirit thereof, and the embodiments herein include all such modifications.

E) BRIEF DESCRIPTION OF THE DRAWINGS
[0043] The other objects, features and advantages will occur to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings in which:
[0044] FIG. 1 illustrates a functional block diagram of a system and for foot and knee stress analysis and ground contact time measurement, according to one embodiment of the present invention.
[0045] FIG. 2 illustrates various pressure segments of the feet for analysis of pressure exerted using a system for foot and knee stress analysis and ground contact time measurement, according to one embodiment of the present invention.
[0046] FIG. 3 illustrates the timing chart of measured pressure data and digital pressure data acquired with a system for foot and knee stress analysis and ground contact time measurement, according to one embodiment of the present invention.
[0047] Although the specific features of the present invention are shown in some drawings and not in others. This is done for convenience only as each feature may be combined with any or all of the other features in accordance with the present invention.

F) DETAILED DESCRIPTION OF THE INVENTION
[0048] In the following detailed description, a reference is made to the accompanying drawings that form a part hereof, and in which the specific embodiments that may be practiced is shown by way of illustration. These embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments and it is to be understood that other changes may be made without departing from the scope of the embodiments. The following detailed description is therefore not to be taken in a limiting sense.
[0049] The various embodiments of the present invention provide a standalone device, or an additional device that is integrated with a person’s footwear, for determining a pressure exerted by a person’s feet. According to one embodiment of the present invention, a system and method is provided for a foot and knee stress analysis and ground contact time measurement. A plurality of sensors is placed in the standalone or additional device to measure the pressure exerted by the feet. The measured pressure information is analyzed using analytics module and the results are rendered to a plurality of end-users.
[0050] According to an embodiment of the present invention, the device detects the pressure exerted by the user’s feet by measuring an exact timing of exertion and release of pressure by the user’s feet, during various actions performed by the user while carrying out the activity under monitoring. The number of sensors to be placed in the device is determined based on the type of activity that is monitored and the level of expected accuracy of the output. The device also measures the timing and location of peak pressure exerted by the feet.
[0051] According to an embodiment of the present invention, an analytics module is provided for determining a pressure data associated with feet and knees of the user. Multiple pressure sensors are arranged in a standalone device or an additional device to measure the pressure exerted by the feet based on the type of activity to be monitored. In the present invention, the timing of exertion and release of pressure at multiple locations in the feet are measured instead of measuring the pressure continuously. The measured pressure signal is converted to digital pulse based on a basic threshold sensing value of a basic filter circuit. A microcontroller, which is wirelessly connected to the sensing device, records the multiple parameters of the sensed data. The analytics module calculates the pressure data and presents the output to the user based on the area of foot under pressure measurement and the time period for which the pressure is exerted.
[0052] According to an embodiment of the present invention, the foot is divided into different pressure segments for analysis purposes. Each pressure segment holds a significance for different types of feet activities. The timing and the location of pressure applied at each localized segment are measured based on the activity that is monitored and the level of expected accuracy of the output readings. The parameters for determining the performance of the foot activity include factors such as ground contact time, stride length, push-off force exerted and landing position of the feet and knee, etc. The relative importance of various feet areas are determined based on the type of activity. A priority list is provided to the analytics module to carry out the analyses based on the priority of each pressure segment.
[0053] According to an embodiment of the present invention, a pressure data measured by the device is converted to a digital data based on basic threshold sensing value of a basic filtering circuit. If the value is below a specified threshold level, the filter sends logic “0”. If it is above a specified value, the filter sends logic “1”. The threshold value is tuned based on the activity and desired sensitivity. This digital pulse train from each sensor is used as an interrupt-provider to the data-collecting unit, which is a microcontroller. The microcontroller records the direction of the interrupt, the timestamp and some other values. The microcontroller conditions these values for onward transmission. This method ensures that the microcontroller unit is operated in low power mode as a default, in almost in all times. The microcontroller unit is activated only to collect and send data by the sensor exactly when needed. This ensures significant power savings in the device. Moreover, the peak value of the voltage and hence, the pressure is estimated by performing an appropriate calculations on the receiving computing device based on the knowledge of the sensor’s voltage ramp-up and ramp-down characteristics. Thus the accuracy of data is preserved even under extremely low-power data collecting and transmission conditions.
[0054] According to an embodiment of the present invention, the analyzed data is rendered to a plurality of end users. The amount of information in the analyzed and the output depends on the type of intended user.
[0055] According to an embodiment of the present invention, the analyzed data is contextually rendered to a plurality of end users. The various users are provided with mutually different access to a same data. The amount of information provided to the user and the format for presenting the information are varied or selected based on the type of end user. While an athlete might be interested in only a generic analysis of the style of his running, the athlete’s trainer might be more interested in a detailed analysis of the pressure exerted by different parts of the user’s feet during different actions of the feet.
[0056] The various embodiments of the present invention a standalone device, or an additional device that is integrated with a person’s footwear, for determination of pressure exerted by a person’s feet. The present invention is particularly related to a system and method for analysis of gait of a person and collection of pressure data from multiple locations of feet.
[0057] FIG. 1 illustrates a functional block diagram of a system and for foot and knee stress analysis and ground contact time measurement 100, according to one embodiment of the present invention. With respect to FIG.1, the sensor module 101 comprises a plurality of pressure sensors placed under the user’s feet. The sensors measure the timing of exertion/ release of pressure on the feet. The Data Analytics module 102 receives the pressure signals from sensors and converts the measured pressure data to digital information. The digital information is analyzed to determine pressure information of the feet depending on the type of activity monitored. This analyzed final output data is transmitted to Data Rendering module 103 to render the analysis of feet pressure information based on the context and the nature of end user,.
[0058] FIG. 2 illustrates various pressure segments of the feet for analysis of pressure exerted using a system for foot and knee stress analysis and ground contact time measurement, according to one embodiment of the present invention. With respect to FIG. 2, each segment holds a significant relevance towards the rate of injury of different parts of the leg. The vulnerable part of the leg is determined or estimated by measuring the pressure at one or more foot segments and analyzing the data. Injury rates associated with Knee are primarily estimated by measuring pressure data from Heel 201, Midfoot 202, 1st MPJ 205 and 2nd MPJ 204. The major causes for an injury in the areas of feet include Heel Strike, Wrong push-off and Over-pronation. The injury rates associated with Arch are primarily estimated by measuring a pressure data from Midfoot 202 and 2nd MPJ 204. A major cause for an injury in the areas of feet includes Arch Stress. The injury rates associated with Shin Splints are primarily estimated by measuring a pressure data from Heel 201 and Midfoot 202. The major causes for an injury in the areas of feet include Heel Strike and Over-pronation. The injuries such as Toe pains are primarily estimated by measuring pressure data from 1st MPJ 205, Midfoot 202 and 3rd-5th MPJ 203. A major cause for Toe pains includes compression due to Overpronation/Supination. The various performance parameters used in the determination of an athlete’s performance are associated with a measurement of pressure data from the different areas of the foot. A Ground Contact Time, which is the time for which each foot is in contact with the ground, is primarily determined by measuring the pressure data from Heel 201, Midfoot 202, 1st MPJ 205 and 2nd MPJ 204. Stride length, which is the distance from last foot contact on ground to current foot contact on ground, is primarily determined by measuring a pressure data from 2nd MPJ 204 and Midfoot 202. Push-off Force, which is an amount of effort exerted when pushing the feet off ground, is primarily determined by measuring a pressure data from 1st MPJ 205, 2nd MPJ 204 and Midfoot 202. Landing Knee position, which is the knee position as compared to the foot when the foot makes contact with the ground, is primarily determined by measuring the pressure data from 1st MPJ 205, 2nd MPJ 204 and Heel 201.
[0059] FIG. 3 illustrates the timing chart of measured pressure signal and digital pressure data acquired with a system for foot and knee stress analysis and ground contact time measurement, according to one embodiment of the present invention. With respect to FIG. 3, a signal pulse 301 of the pressure data measured by the device is converted to a digital signal 302 based on basic threshold sensing value of a basic filtering circuit. When the value is below a specified threshold value, the filter sends logic “0”. When the value is above a specified value, the filter sends logic “1”. The threshold value is tuned based on the activity and desired sensitivity.
[0060] According to an embodiment of the present invention, the system is used for running a gait analysis, an estimation of injury, and an estimation of injury prediction. Further, the system is used for analyzing and monitoring the feet movement pattern during various activities such as golf, dancing, and the like.
[0061] The system is used for monitoring the daily cumulative stress for individuals suffering from arthritis. Further, the system is used for monitoring continuous pressure and inactivity of users.
[0062] According to an embodiment of the present invention, the system is operated as a sensor-embedded insole, a circuit pod for the footwear, and as a circuit around the ankle based on the requirement and the preference of the user.
[0063] According to an embodiment of the present invention, plurality of sensors sense the absolute pressure exerted by the user on the feet using a force sensors. Further, the changes in the pressure and forces (referred as force events) are sensed using piezoelectric strips and/or accelerometers. The orientation and changes in the orientation of the feet of the user is sensed using gyroscopic sensors. Further, sensing module also senses the timing (absolute and relative) of specific “force events” at various parts of the feet.
[0064] According to an embodiment of the present invention, the sensor placement is dependent on the activity and the application of the user using the system for measuring the pressure exerted by the feet.
[0065] For example, the activity of running include stances such as landing, rolling and push-off. The key impact areas are heel, 1st MPJ 205, 2nd MPJ 204, outer midfoot, and inner midfoot (arch). The key measurements needed are dynamic force, pressure during the above-mentioned key stances, rotational of the foot during roll phase, and orientation of the feet during impact and landing. Therefore, the sensing module comprising a plurality of sensors are placed at different segments of feet to measure those parameters.
[0066] The foregoing description of the specific embodiments herein will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments herein without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the appended claims.
[0067] Although the embodiments herein are described with various specific embodiments, it will be obvious for a person skilled in the art to practice the embodiments herein with modifications.

G) TECHNICAL ADVANTAGES OF THE INVENTION
[0068] The present invention discloses a standalone device, or an additional device that is integrated with a person’s footwear, for determining the pressure exerted by a person’s feet. The present invention provides a system and method for analysis of gait of a person and collection of pressure data from multiple locations of feet, without a need of attaching any external device to the user. In the present invention, only the time instance and duration of pressure is measured. The present invention ensures that the microcontroller unit is operated under low power modes as a default, and activated only to collect and send data when needed. In the present invention, the rendering of analyzed data is intended for multiple users such as a sportsperson using the device, sportsperson’s trainer, coach, sportsperson’s team captain etc. Depending on the context and type of user accessing the data, the details and nature of the output are different.
[0069] Although the embodiments herein are described with various specific embodiments, it will be obvious for a person skilled in the art to practice the embodiments herein with modifications. However, all such modifications are deemed to be within the scope of the claims.
[0070] It is also to be understood that the following claims are intended to cover all of the generic and specific features of the embodiments described herein and all the statements of the scope of the embodiments which as a matter of language might be said to fall there between. ,CLAIMS:1. A device for determining a pressure exerted by a user on his feet, the device comprising:
a sensor module configured for sensing and measuring a pressure exerted by the user on the feet, and wherein the sensor module comprises a plurality of sensors, and wherein the sensor module is configured to detect and measure a time and magnitude of exertion of the pressure and a release of the pressure by the user during a plurality of actions performed by the user;
an analytics module configured for analysing and generating a pressure data associated with the feet and knees of the user, wherein the analytics module is configured to generate the pressure data and to output the generated pressure data to a user device, and wherein the pressure data is generated based on the area of foot under the pressure, and the pressure exertion period; and
a data rendering module configured for rendering the analysed data to a plurality of user devices, wherein the data rendering module is connected to a computing device, and wherein the data is rendered contextually based on the type of the user.

2. The device according to claim 1, wherein the device is configured to function both as a standalone device and an integrated device, and wherein the integrated device is integrated or built-in with a footwear.

3. The device according to claim 1, wherein the plurality of sensors in the sensing module is configured to measure a plurality of pressure points of the foot of the user, and wherein the plurality of sensors are placed at a plurality of segments of the feet, and wherein the plurality of segments and the type of the sensors are determined based on a type of the activity performed by the user and a level of expected accuracy of the output.

4. The device according to claim 1, wherein the sensor module is further configured to determine a performance activity or a movement condition of the feet, and wherein the performance activity or a movement condition of the feet is dependent on a plurality of factors, and wherein the plurality factors for measuring the performance activity or a movement condition includes a ground contact time, a stride length, a push-off force exerted and a landing position of the feet and the knee, and wherein the sensor module is a piezo-electric sensor module.

5. The device according to claim 1, wherein a sensor module is configured to generate electricity is generated during an activity performed by the user, and wherein the electricity is used for powering the components of the device.

6. The device according to claim 1, wherein the data-rendering module is configured to render the generated pressure data and a report to the plurality of users based on the type of the end user, and wherein the type of the end user is pre-selected at the time of the use of the device.

7. The device according to claim 1, wherein a measured pressure signal is converted to digital pulse train based on a pre-set threshold sensing value of a basic filter circuit, and wherein the pre-set threshold sensing value is calculated based on an activity and a desired sensitivity of the device.

8. The device according to claim 1, wherein the sensing module is configured to generate the digital pulse train based on an output from each sensor of the sensing module, and wherein the digital pulse train generated with respect to each sensor output is used to provide an interrupt-signal to a microcontroller, and wherein the microcontroller records a direction of the interrupt, the timestamp conditions, and the pressure values for onward transmission.

9. The device according to claim 1, wherein the pressure is estimated by running an algorithm on the micro-controller based on a characteristics of the plurality of sensors.

10. The device according to claim 1, wherein the computing device performs a gait analysis of the user based on the pressure exerted by the user on his feet.