3. •Basic principle of this mechanism is
conversion of mechanical energy into electrical
•The pressure exerted by the vehicles on the
road is used to rotate the shaft of dc generator.
For this we use
• A pressure compression mechanism
• Gear and chain sprocket arrangement and
• DC generator
4. Block diagram :
KINETIC ENERGY OF
OVER THE HUMP
The main purpose of the sprocket wheel is that when the
pedal moves in opposite direction to get back to its original
position , the shaft would rotate in the forward direction
7. Spur gears
It is a positive transmission device with definite velocity ratio. Its volute
profile is preferred for adjusting some linear misalignment. It should
have high wear and tear, shock absorbing capacity. It can transmit a
motion at very low velocity. We have used 6 spur gears of different sizes
to get high velocity ratio.
8. Gear Ratio
It is the ratio of number of revolutions of
driver gear to the driven gear(N1&N2)
Or it is the ratio of number of teethes
of driven gear to the driver gear(T2&T1)
If T1= 60 & T2=30
The DRIVEN gear makes TWO rotations for every ONE rotation of the Driving Gear
= = 1
9. SHAFT WITH GEAR
The shaft is the axle of the gear, It is a rotating element, which is used to transmit the
power from one place to another place. It supports the rotating elements like gears
It is an element, which supports machinery. It permits relative motion between the
contacting surfaces while carrying the loads. They reduce the friction and transmit
the motion effectively.
It is defined as an elastic body whose function is to distort when loaded and to
recover its original shape when the load is removed. It cushions, absorbs or controls
energy either due to shocks or due to vibrations.
11. DC GENERATOR
A DC Generator is a rotating machine which converts mechanical energy into
electrical energy. It works on the principle of electromagnetic induction.
According to Faraday’s law, whenever a conductor cuts magnetic lines of flux, a
dynamic emf is induced in the conductor. This emf causes a current flow if the
circuit is closed. The essential requirements of a dc generator are
A magnetic field
Conductors or coils
Relative motion between the magnetic field and the conductor
12. SL NO NAME SPECIFICATION
(i)Voltage : 12
(ii)Type: D.C. Generator
(iii) RPM: 1000rpm
(i)Material : Mild Steel
(ii) No. of teeth : 37(big gear)
(iii)No. of teeth : 22(small gear)
(iv) Type: Spur gear
(v)No. of gear used:6
(i) Load bearing capacity :6- 7kg
(ii)Material: Mild Steel
(iii)Total displacement: 2 inch
4 Chain & Sprocket
(i) Number of teeth on big sprocket :18
(ii)Number of teeth on small sprocket 10
(iii)Distance between the centre 10 cms
5 Bearing (i) Type: Rolling contact bearing
(i)Diameter : 6 mm and 10 mm
(ii) Material : Wood
(iii) Length : 170 mm
COMPONENTS WITH SPECIFICATION
15. Applying weight on the pressure lever, the lever travels
a distance of 0.15 meter (m) and the total time taken to
travel this distance is 1 second(s)
By one stroke sprocket gear moves four teeth from its
•Generation of power without polluting the
•Simple construction, mature technology and easy
•No fuel transportation required.
•No consumption of any fossil fuel which is non-
renewable source of energy.
•No external source is needed for power generation.
•Mechanical moving parts is high and therefore there
are very large frictional losses and therefore require more
•Initial cost of this arrangement is very high.
•The overall efficiency is quite low as compared to other
•Difficult to place the system in the road.
•It is effectively work only in busy roads.
Application can be classified into two according to the type
of usage as:
1) Direct use &
2) Indirect use
In direct use the generated electric power is used without
storing it in any battery. Therefore the output will be
available only when a vehicle pass over the system.
• Speed monitoring system
23. In indirect use, the electricity produced is stored in a
battery. This power can be used in many places after using
the inverter, which enhances in the voltage from 12 volts to
230 volts. This power can be used in the following:
•Sign boards on the roads.
•Lighting Of the bus stops.
•Lighting of the check post on the highways etc.
24. Speed monitoring system
The above explained mechanism can also be used as
a speed monitoring system with slight changes.
The output voltage of the generator depends on the
speed of rotation
So for each speed level there will be a corresponding
This output can be processed and displayed
25. For example:
Vehicle moves at a speed of 40 km/s piston moves the distance in 1 second
Gets a speed of 1000 rpm 10v output
Vehicle moves at a speed of 50 km/s piston moves the distance in .9 second
Gets a speed of 1100 rpm 12v output
27. Here a number of power humps are used
Separate power humps are provided on each of the 4
The output of all of them is connected to a single battery
In four way junction vehicle will pass through any one of
Hence get a continues input to the battery
The output can be used to light up the signal system itself
28. Literature survey
1. International Journal of Engineering Science and Innovative
Technology (IJESIT) Volume 2, Issue 3, May 2013
2. International journal of innovations in engineering and technology
(IJIET) Volume 2, Issue 2,April 2013
3. Noor Fatima ,Jiyaul Mustafa, Production of electricity by the method
of road power generation, International Journal of Advances in
Electrical and Electronics Engineering, 1(1), 9-14.
4. Mukherje, D., Chakrabarti, S., Non-conventional power plants, New
• International Journal of Engineering Science and Innovative Technology (IJESIT)
Volume 2, Issue 3, May 2013
• International journal of innovations in engineering and technology (IJIET)
Volume 2, Issue 2,April 2013
• Totaram Ingle Devanand, System of Genreating Electricity; Patent publication No.
WO 2013011519 A1,2013.
• A Text Book of Machine Design : R.S Khurmi & J.K. Gupta
• Nota, R., Barelds, R., “Engineering methods for road traffic and railway noise
after validation and fine-tuning”, Harmonies, 2005.
• Shakun Srivastava, Ankit asthana, “produce electricity by the use of speed
breakers,” Journal of Engineering Research and Studies, Vol.2, No.1 April-Jun