Mechatronics
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hellsangels1890
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29-01-2010, 06:10 PM


Mechatronics, a concept of Japanese origin was first introduced during the early 1970's to qualify the dual alliance of electronics and computer technology to practical control application in Mechanical Engg. system.
The Japanese were very quick to exploit the advantages of this integrated technology through their consumer products while other are yet adopting this concept to realize it's benefits.
The combination of Mechanical, electronics and information technology is optimized to take full advantage of the ability of microelectronics to reduce the demand of mechanical system of a product. High technology CNC m/c, Robots, automated manufacturing systems are truly mechatronics product.


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GIRISH 13
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30-01-2010, 08:57 PM

HI........................
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project report helper
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09-10-2010, 12:21 PM



.ppt   Mechatronics.ppt (Size: 2.02 MB / Downloads: 340)
Mechatronics

Prepared by: Dr. rer. nat. Ashraf Aboshosha
EAEA, NCRRT, Engineering Dept.
icgst.com, icgst-amc.com

What is the Mechatronics?

Mechatronics basically refers to mechanical electrical systems and is centred on mechanics, electronics, computing and control which, combined, make possible the generation of simpler, more economical, reliable and versatile systems.

The term "mechatronics" was first assigned by Mr. Tetsuro Mori, a senior engineer of the Japanese company Yaskawa, in 1969.

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13-03-2012, 10:59 AM


to get information about the topic"mechatronics" full report ppt and related topic refer the link bellow

topicideashow-to-mechatronics-project and implimentations

topicideashow-to-mechatronics

topicideashow-to-mechatronics-full-report
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project girl
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03-11-2012, 01:17 PM

Mechatronics


ABSTRACT

Mechatronics is a hybrid technological field which evolved from the combination of mechanical, electronics & Software engineering. Automobiles need high degree of safety to protect the occupants and their property. Bearing this in senses we come up with a new concept of Electric pulse Magnetic Braking (E.P.M.Braking).
When the driver applies force on the brake pedal the magnitude is sensed by the pressure transducer which in turn sends the actuating signals to microprocessor. This intelligent device sends pulsating D.C. current from the capacitor to the power pack.
The power pack develops sufficient torque to decelerate or stop the vehicle as per the driver’s requirement. The torque produced is directly proportional to the force applied on the brake pedal, as the intensity of the actuating signal from the pressure transducer is directly proportional to the pulsating D.C. current supplied to the power pack.
Another important aspect of this braking system is that the power pack also acts as a generator, which results in additional power generation. We have also incorporated artificial intelligence. Logic gates for backup-circuit for safety and shift current for shifting the power pack from generating mode to braking mode and vice-versa to generator power.

INTRODUCTION:

Automobiles need high degree of safety to protect the occupants and their property.When the driver applies force on the brake pedal the magnitude is sensed by the pressure transducer which in turn sends the actuating signals to microprocessor.We have also incorporated artificial intelligence. Logic gates for backup-circuit for safety and shift current for shifting the power pack from generating mode to braking mode and vice-versa to generator power.

WHAT IS MECHATRONICS?

Mechatronics is concerned with the blending of mechanical electronics & software fields. So the mechanical system, motor heads and gigabytes go hand in hand. As the saying goes “Necessity is the mother of invention”, locomotion was first on feet, animals, then by wagons powered by horses, then horses were replaced by horse power produced by the engines which went at roaring speeds, their safety was a big concern, so the stoppers namely the brakes were developed for the safety of the occupants and the vehicles.
Brakes are one of the most important control components of the vehicle. They
are required to stop the vehicles at the smallest distance and this is achieved by converting the kinetic energy of the wheels into heat energy, which is dissipated into the atmosphere.
To provide a cutting edge upon the conventional braking systems, we have come up with a new concept of E.P.M.Braking. This will result in high safety standard which will minimize the damage to life and property.

POWER PACK:

This unit is specially designed for E.P.M.Braking. This consists of armature wiring on the dead and live axle, surrounded by permanent magnet made of samarium cobalt with desired air gap. The armature is wound round with room temperature super conducting materials like carbon fibers and its composites. The whole setup is placed inside the casing. Sensors are placed inside the casing to sense the braking action. Power pack is incorporated with shift circuit for conversion of system from braking mode to generating mode or vice versa.

MICROPROCESSOR:

This being the heart of the E.P.M.Braking transmits a pulsating D.C. supply to armature, which is directly proportional to the intensity of signals from the
pressure transducer via brake pedal. This also monitors the RPM and the rotation of the wheels. Microprocessor controls the mode of operation of the power pack.

PRESSURE TRANSDUCER:

This is a piezo-electric crystal. When the force is applied on the pressure transducer via brake pedal, this sends actuating signals from the pressure transducer which is directly proportional to the force applied on the brake pedal.

FUNCTIONAL OUTLOOK:

When the vehicle is moving at a desired velocity, if there is any interference in the path there arises the need for braking, while braking the wheels, should not skid as the driver looses the control of the vehicle. A good braking system should have a rolling stop, so that the driver can handle vehicle easily. When the driver applies force on the brake pedal, which is in contact with the pressure transducer or the piezo-electric crystal, it sends actuating signals to the microprocessor, which shifts the power pack from generator mode to braking mode.
The microprocessor is programmed in such a way that the frequency of constant D.C. pulse discharged from the capacitor is directly proportional to the
intensity of actuating signals from the pressure transducer. This pulsating D.C. is send to the armature of the power pack, which is fitted to both the axles. This is sensed by the microprocessor through the sensors. The torque is sufficient to bring the vehicle to a rolling stop within a short distance since we apply only pulsating D.C., there is neither sliding nor skidding of the wheels.
When the vehicle is operated in the reverse gear the sensors in the power pack senses the direction and communicates to the microprocessor, so that the pulsating D.C. supplied to the armature is in the reverse direction. Another important aspect of this braking system is that the power pack also acts as a generator. When there are no actuating signals from the pressure transducer the logic circuit shifts the power pack from the braking mode to the generator mode. The power produced by the generator mode is fed to D.C. power source.

SHIFTING LOGIC:

When the power pack is operating in the generator mode power is produced. After crossing the critical speed, to prevent the over loading of the engine is in the uphill condition, we have designed a simple logic circuit, which consists of a zener diode, XOR-GATE, NOT-GATE, power transistor and current limiting resistors.
When the velocity of the vehicle increases, power produced also increases. The power produced is fed to a zener diode through a current limiting resistor R1. when the voltage from the power pack exceeds the critical voltage of the zener diode , it overcomes the brake down voltage and the A.D.C.(Analog to Digital Converter) sends a signal to the X-OR gate to pin1. Pin2 of this gate is connected to the pressure transducer through a A.D.C. When there is no braking there is no signal

SAFETY BACKUP:

In the case, if the microprocessor fails, the output from the microprocessor is ‘0’, this signal ‘0’ is send to the pin3 of X-OR gate. Pin4 of the X-OR gate receives signal’1’ from the pressure transducer and the output of the X-OR gate is ‘1’, this triggers the micro controller to discharge the current from the capacitor to the power pack. This is only a constant D.C. supply not a pulsating one. This brings the vehicle to a sudden stop.

INCORPORATION OF ARTIFICIAL INTELLIGENCE:

A C.C.D.(charged couple device) camera captures the image of the surface in which the vehicle is moving. The image is in the form of pixels. A matrix of pixels is taken and the resultant brightness is found out. Similarly the resultant for all the matrix of pixels is obtained. Using a comparator circuit the resultant is matched with the resultant of template images, which are already stored in memory.

CONCLUSION:

The above ideas may seem to be impossible; not in mere future considering the safety of the passengers this method of braking system plays an important role. By incorporating this type of braking system there is no need of extra arrangement. The wear and tear of the brake system and the tyre is less. Apart from this advantage there is generation of additional power for the source. This also increases the efficiency of the engine.
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#6
30-11-2012, 01:01 PM

MECHATRONICS


.doc   MECHATRONICS.doc (Size: 34.5 KB / Downloads: 16)

ABSTRACT

This project and implimentation is to study the various aspects of mechatronics in the rapidly changing scenario of the modern industries, its overall aspect in the changing technological advancements and its latest practical applications. “MECHATRONICS” as the name suggests is the integration of electronics and mechanical systems along with computer technology to practice control applications. Its concept comes from Japanese origin. The combination of mechanical and electronics engineering is optimised to take full advantage of the ability of microelectronics to reduce the demand on mechanical systems products. High technology CNC machines, robots and automated manufacturing systems are truly mechatronic products. Furthermore the modern technologies adopt automation, CAD/CAM, flexible manufacturing systems(FMS) and Computer Integrated Manufacturing(CIM). The modern concepts of- 1)Autofocus cameras, 2)Automatic car parking System in highly populated and inspacious areas, 3)Automatic Traffic lights, 4)Automatic bottle filling, 5)Lift System, 6)Photocopiers and modern printers, 7)Washing Machines , etc,. are based upon concepts of Mechatronics. Modern mechanical based industries have highly deviated to apply mechatronics in their manufacturing processes. With the growth of higher competition due to greater consumer needs and even growing costumers there is a need of maintaining a faster rate of production along with excellent product accuracy , so CNC machines with feeded programs are used along with robots and conveyors to promote “full automation”. High time applications include Programmable Logic Controllers(PLC’s) which are programmed to control a mechanical system, a microcontroller chip or microprocessor connected to a specific mechanical work output. This includes the usage of various devices like sensors, actuators, computer processors, simulation softwares, etc,. The main concept of full automation here starts when a system interferes with another system without human consent and provides accurate results. For example: signal conditioning takes place between sensor and the microcontroller so that the sensor’s output can turn into data the microcontroller can work with and provide desired results.
Hence with such automation facilities provided by mechatronics based technology has lead to a very large amount of increase in flexibility, faster/increased rate of production, increased accuracy, lesser time or just-in-time production and fulfilment of standardised product quality and thus greater fulfilled consumer satisfaction. Thus “mechatronics” , proves a perfect blend of a latest technology which in the near future is going to rule the modern industries in which India is not a conception; where even today some of the reputed companies like “Maruti Suzuki and Maruti Udhyog Ltd.”, Tata Cummins, etc,. have adopted the concept of Mechatronics and moving ahead to a fully automated technology.
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