The objectives of the project include:

 To continuously monitor the voltage, current, temperature, and oil level of the distribution transformer.

 To process sensor data using a PIC microcontroller for reliable transformer condition assessment.

 To transmit real-time voltage, current, temperature, and oil level values to the user’s Android mobile through Bluetooth (HC-05).

 To display transformer parameters and system status locally on an LCD.

 To provide immediate alerts using buzzer and LED indicators during abnormal or fault conditions.

 To protect the transformer by automatically disconnecting the load using a relay-based circuit breaker during unsafe conditions.

 To improve transformer safety, reliability, and reduce manual inspection and maintenance efforts.

The major building blocks of this project are:

• Regulated Power Supply.
• PIC Microcontroller.
• LCD display with driver.
• Electromagnetic Relay with driver.
• Voltage Sensor(pot).
• Current Sensor(pot).
• OIL level sensor(sr04).
• Temperature sensor.
• HC-05 Bluetooth.
• Buzzer with driver.
• Crystal oscillator.
• LED indicators.

Software’s used:

• PIC-C compiler for Embedded C programming.
• PIC kit 2 programmer for dumping code into Micro controller.
• Express SCH for Circuit design.

Regulated power supply:

Block Diagram  :

video:

The core components of the system include the Arduino Uno, which serves as the central processing unit, the servo motor responsible for the mechanical movement of the bed, and the HC-05 Bluetooth module that facilitates wireless communication. Voice commands are processed and transmitted via a smartphone or other Bluetooth-enabled devices, which are then interpreted by the Arduino to actuate the servo motor. This setup provides a seamless and user-friendly interface for patients, ensuring precise and reliable adjustments to the bed’s positioning.

This project not only improves patient autonomy and comfort but also enhances operational efficiency in healthcare settings. By reducing the dependency on nurses and caregivers for routine bed adjustments, the system allows healthcare professionals to allocate more time to critical tasks. Moreover, the voice-operated functionality represents a significant step towards integrating smart technology into medical equipment, paving the way for more advanced and patient-centric innovations in the future.

OBJECTIVES

1. Enable patients to adjust their hospital bed positions independently via voice commands.
2. Improve patient comfort and convenience with effortless bed adjustments.
3. Reduce healthcare staff workload by automating bed position changes.
4. Integrate modern technology into hospital beds, promoting innovation in patient care.

THE MAJOR BUILDING BLOCKS FOR THIS PROJECT:

1. Arduino Uno.
2. Servo motor.
3. HC – 05 Bluetooth.

BLOCK DIAGRAM

video:

The project aims at developing an intelligent system capable of detecting bomb and controlling of robot over Bluetooth. The controlling of robot can be done by Bluetooth by using android smart phone.

The project makes a use of PIC microcontroller it is a main controlling device of the input and output modules. HC-05 Bluetooth module for wireless controlling of robot. Metal detector is used to detect the bombs in the path of robot. Buzzer is used to gives the audible alerts to the surrounding people. DC motors along with l293d motor driver is used to moves the robot.

Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs). Invented by telecom vendor Ericsson in 1994.

The controlling device of the whole system is done using PIC Microcontroller. The robot can be controlled through our mobile phone over Bluetooth communication. The Bluetooth receiver module in our system gets the input from our mobile phone and gives the same input to the microcontroller. The microcontroller accordingly controls the robot. The metal detector sensor senses if there is any presence of bombs and processes this data to PIC microcontroller then microcontroller gives the buzzer alarm. The PIC Microcontroller used in the project is programmed using Embedded C language.

The main blocks of this project are:

1. PIC Microcontroller (PIC16F872)
2. Reset button
3. Crystal oscillator
4. Battery power supply (RPS)
5. LED indicator
6. HC-05 BLUETOOTH.
7. Buzzer
8. METAL sensor
9. DC motors
10. L293d motor driver.
11. Battery charging circuit.

Software’s used:

• PIC-C compiler for Embedded C programming.
• PIC kit 2 programmer for dumping code into Micro controller.
• Express SCH for Circuit design.

Block Diagram:

Video