Bio-instrumentation Projects

(KL-130) IoT Operate WheelChair with Health Monitoring

This project proposes an advanced solution for the physically disabled patients to provide them easy mobility with a health monitoring system. The proposed system stands ahead because of the unique feature of Internet of Things (IoT) that we have embedded in our system using an ESP8266 wi-fi module. A user friendly GUI touch button panel for controlling the wheelchair, the safety oriented components such as ultrasonic sensor for obstacle avoidance, buzzer for alert and a panic button will add up to prove the system perfect for handicapped and elderly person for daily use. It also includes sensors for monitoring heartbeat, body temperature.

The main objective of this project is to controlling a wheel chair from multiple location, by user sitting within chair as well from any remote place, that is done using wireless wi-fi communication network created by ESP8266 module interfaced to an advance microcontroller.The project design involves an Arduino family microcontroller interfaced to an ESP8266 WI-FI modules and sensors for health monitor. A ESP8266 WI-FI is programmed as access point mode, so operate as wi-fi server and any wi-fi enable device like smart phone can be connected in with on or off line internet and communicate to this network using TCP/IP enable web page / App. Hence, A HTML Web page is created, which contains the GUI button panel for controlling the movement of wheelchair, also monitor bar for the health sensor data readings on this page. Thus, Controlling of wheelchair and monitor data is possible from sitting within chair as well from any remote place. The guardian sitting in remote area can get connected with its patient’s wheelchair and can also control wheelchair and monitor remotely.

This system allows the user to robustly interact with the wheelchair at different levels of the control (left, right, forward, backward and stop) and also provide the health monitoring of user to its guardian simultaneously. Two dc motors and motor driver are interfaced to microcontroller for operating the wheelchair, also an ultrasonic sensor is placed at front of chair which monitor and stop it in case of obstacle nearby in travelling path , it also alert on buzzer sound.

(KL-131) Voice Controlled WheelChair

The main objective of this project is to control a wheel chair by using Human Voice command . This system is easy to operate and user friendly for the movement of people who are physically disable or handicapped and elderly people.

This project hardware involve a four wheel robotic vehicle operated by DC motor. The system operates with the use of a android device which transmits voice commands to a microcontroller to achieve this functionality. The transmitter consists of the android phone Bluetooth device. The voice commands recognized by the module are transmitted by through the Bluetooth transmitter. These commands are detected by the robotic vehicle in order to move it in left, right, backwards and front directions. The bluetooth receiver mounted on top of the vehicle is used to recognize the transmitted commands and decode them. After decoding these commands are passed on to the microcontroller then drives the vehicle motors to move it accordingly. This is done with the use of a driver IC used to control the motor movements. The Bluetooth technology used to transmit and receive data allows for remotely operating the system within a good range.

(KL-208) RF-Zig-bee Network for Physiological Parameters Monitoring and Remote Devices Controlling

There are places in medical treatment where human intervention is not possible, in such places sensors are placed and their data need to be monitored on display panels at different locations. This system can be made wireless by using Zig-bee RF Module based on the IEEE 802.15.4/Zigbee standards. Zigbee is a low power wireless transceiver device which in combination with processing unit can be used for sensor data monitoring.

 The main aim of the project is to monitor of critical physiology parameters of human body over remotely by  Zig-bee and upon crossing the limit predefined range  switch on the remote devices and alert signals over local LCD display as well on remote PC display. For this real-time scenario here uses three different sensors,  a temperature + heart rate sensor, Blood Pressure sensor.

  The project hardware design consists in two section, 1.) Sensing END 2.) Monitor END, At the Sensing END an advance series of microcontroller is interfaced  to all these sensors to its analog to digital convertor(ADC) which reads these real time sensors value.  These ADC readings are then sent to Zig-bee module (through serial communication) operating at 2.4GHz for transmitting the same data at Monitor END.  Remote receiver is also a Transreceiver Zig-bee module interfaced to PC Monitor through USB com port that receives not only the real time data but also the error signal along with to operate corresponding dc relay for any action with digitally. We here use X-CTU monitor software run at PC terminal, through which the API command is being programmed in Zig-bee module. The real time sensor data is continues monitored at Receiver window and through Transmitter window of software the particular ASCII command is transmitted to switch ON/OFF the particular device connected at sensor side at any instant from remotely.   

  This system can be further enhanced by creating a Zig-bee mesh network between multiple located zig-bee with sensing device at different-different places.

(KL-221) Ultrasonic Spectacle Waist-Belt With Location Tracking System

sense of vision to the human being is an important aspect of our life. But there are some unfortunate people who lack the ability of visualizing things. The visually impaired have to face many challenges in their daily life. This proposed project is very helpful to the blind by obstacle detection and location tracking using ultrasonic sensor and GPS-GSM system. A ultrasonic sensor is placed in a waist belt at front, it wear by a blind person and it keeps continuous watch to walking path, so  we can say Ultrasonic Spectacle Waist-Belt device.

The project design consist an Ultrasonic wave based modules interfaced to an arduino / atmega328 microcontroller, It will measure the distance and velocity of the obstacle in the way of the person and will alert the person about any obstacle (moving/stationary) with vibration, a vibrator is attached to a person's hand. Since the device is also incorporated with wireless module GPS receiver and GSM module for location tracking of person and alerting to remote mobile. There is a switch attached to device by press it an alert message with location is sent to any authorized remote phone.

 Further, this system can be enhanced by involve more sensors like light, moisture and sound sensor for more safety and precaution to blind person.


MEMS Accelerometer based Motion Controlled Wheelchair

The aim of this project is to controlling a wheelchair by using MEMS, Accelerometer sensor. MEMS Accelerometer is a Micro Electro Mechanical System which is a highly sensitive sensor and capable of detecting the tilt. The sensor finds the tilt and makes use of the accelerometer to change the direction of wheel chair depending on the tilt. For example if the tilt is to the left side then the wheelchair moves in left direction. Wheel chair movement can be controlled in Forward, Reverse, Left and Right direction along with obstacle detection using ultrasonic sensor.

 MEMS Accelerometer based devices can be easily rechargeable to the common man due to its simpler operation. This device is portable and user can wear it to his wrist like a watch and can operate it by tilting the MEMS, Accelerometer sensor. This project makes use of a micro controller, which is programmed, with the help of C instructions. And a 3-axis accelerometer is used to sense motion. Control equipment fitted patients head or palm is used to control wheel chair. The two geared DC motors through a driver are used for the motion of prototype wheelchair model. If the patient wants to move in a particular direction, say in left, the patient can tilt the accelerometer in that direction. When the accelerometer tilts according to his/her need, the sensor reds the value in the X and Y direction. According to this value motor begin to rotate. The micro controller current is too low to drive DC motors, here we use L293D motor driver. Ultrasonic sensor is used to detect and measure distance of any obstacle in way of wheelchair and it alert it by buzzer sound.   rechargeable battery is also connected to wheelchair to deliver the power supply to this system, 12 volt supply is delivered to motors and 5 volt supply to the microcontroller and sensor using a voltage regulator IC-7805. 

This project can be further enhanced by involving more safety sensors, also can be used wireless device for remote control operation and monitor purpose too.