Analysis and control of hand tremor

A project for the people suffering from tremor,this device can be used to analyze the tremor frequency and stabilize it by using a gyroscope

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The main aim of this project is to analyse the exact frequency of the tremor using cheaper and more cost-effective methods and also to reduce the frequency using gyrostabilizer. Accelerometer and flex sensor is used to precisely measure the hand vibration caused due to tremor .The Accelerometer senses the position of the hand at a particular moment ,so we have used an accelerometer to convert the position into frequency of the vibration of the hand using a particle photon.

A low-cost microcontroller with a built-in Wi-Fi is used to calculate the frequency from the raw accelerometer and flex sensor data. This frequency information is sent to the cloud so that doctors can monitor the condition of the patient using their smart phone. Hand tremor is controlled using gyrostabilizer containing high speed rotating disc which is driven by a dc motor at high rpm. This rotating disc trying to maintain its position stabilizes the hand.

Tremor is an unintentional, rhythmic muscle movement involving to-and-fro movements (oscillations) of one or more parts of the body. It is the most common of all involuntary movements and can affect the hands, arms, head, face, voice, trunk, and legs.The frequency and amplitude of a tremor vary to the degree that the tremor may be hardly noticeable or severely disabling. Frequency can be divided into three categories of oscillation per second:slow (3 to 5 Hz),intermediate (5 to 8 Hz) or rapid (9 to 12 Hz).A coarse tremor has a large displacement whereas a fine tremor is barely noticeable to the naked eye.Tremor may be unifocal,multifocal or generalized and may affect the head, face, jaw, voice,tongue,trunk or extremities.This project proposes to build a prototype using embedded system(IoT) which would replace the more costlier method of EMG.

This system consists of various sensors like the accelerometer and flex sensor.The accelerometer sensor is used to determine the position of the hand,the values from the accelerometer are used to determine the frequency and amplitude of the hand tremor.The flex sensor is used for the movement of the fingers due to tremor.The flex sensor and the accelerometer sensor are combined to give the frequency of an hand movement due to tremor.The controller used is particle photon which has an in-builtWi-Fi module which could be used to upload the values of the frequency and amplitude of the tremor which could be analysed by a doctor sitting at a hospital many kilometres away from the patient could be done even through the phone.

The whole system including the control part of the tremor could be completed within a budget of Rs.12000 to Rs.15000.Based on the frequencies the type of tremor could be distinguished.Postural tremor – when limb is positioned against gravity (5 to 9 Hz) Ex:Drug Induced or Alcohol abuse,Rest tremor-When limb is fully supported against gravity and the muscles are not voluntarily activated (3 to 6 Hz) Ex:Parkinsons disease,Action tremor (close to or more than 10 Hz) Ex:Cerebral lesions.We are aiming to develop the idea into wearable which could be constantly worn by the patients with ease.The control of tremor can be done by using a high speed rotating disc which suppresses the tremor to an extent.

  • 1 × accelerometer
  • 1 × super precision gyroscope
  • 2 × flex sensor Electronic Components / Misc. Electronic Components
  • 1 × particle photon

  • Stabilising the Hand

    mohammedzeeshan7706/12/2017 at 16:11 0 comments

    In the second case,the super precision gyroscope was fitted to the hand of the same person and the results were observed.

    As you can see from the graph the vibration of the hand was considerably reduced as suggested by the frequency in the graph.The main problem was the weight of the super-precision gyroscope which interrupts the old people in their daily activities even though it reduces the vibration when the hand is idle.

    The gloves also consists of an emergency button as it is going to be mostly used in old age people,which is used to alert others in case of any danger.

  • Determination of frequency

    mohammedzeeshan7706/12/2017 at 16:05 0 comments

    The cloud we used for our project is the Thingspeak.We have used thingspeak as it is simple and very convenient for many people.

    The above graph shows the frequency determination of the vibration of the hand due to tremor.The experiment was conducted on a 75 year old with just the accelerometer,in this step the super-precision gyroscope was not used.

    The datas i.e the position of the hand was transmitted continuously to the particle photon micro-controller,With the help of coding the position were converted into frequency and were uploaded to the cloud which could be seen from anywhere.

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Mohamed wrote 08/01/2018 at 18:58 point

Great Work dude

Keep up

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Ashfaq Hussain wrote 06/07/2017 at 10:00 point

Congrats Zeeshu. Keep working on it.

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Kyle wrote 05/03/2017 at 22:49 point

This is amazing. I have been tinkering with something to help my Dad's tremors and had some success with using vibration motors to help control the tremors. Although it seems to have lost some of its effect since he has gotten used to it. I may take a crack at this.

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Ulysse wrote 04/26/2017 at 16:40 point

really interesting

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Jack2nd wrote 04/02/2017 at 11:50 point


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Ember Leona wrote 04/01/2017 at 06:25 point

my psych meds gave me tardive dyskinesia... aka mental illness. I need brain washing with milk and honey... i mean Mental Hygiene Department

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Jason aniston wrote 04/01/2017 at 13:40 point

Arey bhai i don't understand!!

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Marty wrote 03/30/2017 at 12:26 point

Nice project. I like the fact that you try to stabalize the hand. I've seen other projects which try to stabiliza the "item" used, like this:
But this is better, as it can be used for everything.

Keep us updated on the project :-)

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mohammedzeeshan77 wrote 04/01/2017 at 10:54 point

thank u ...sure

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Saurabh Verma wrote 03/29/2017 at 03:32 point

Nice work mate...
Could be used for controlling parkinson's disease to some extent!!

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mohammedzeeshan77 wrote 03/29/2017 at 16:22 point

thank u ..thats the aim

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Prakash wrote 03/28/2017 at 05:17 point


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G.Vignesh wrote 03/27/2017 at 17:58 point

Great work in the bio-medical field
Keep up the good work :-)

Hoping to see it as a complete product!!

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mohammedzeeshan77 wrote 03/29/2017 at 16:22 point

thank u 

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