Skip to main content

car parking with sensor technology with circuit diagram

Introduction: While parking the car the driver should be more careful because he cannot see the back of the car while parking or taking reverse, if there is any obstacle and ran over it might be  get damage to the car. Our project will help the person in the driving seat and give alarm if there is any obstacle or a wall while parking or while driving in reverse.

Block Diagram of Car Parking Guard:

Block Diagram of Car Parking Guard Circuit Using Infrared Sensor
The IR sensor will detect the obstacle with in 100cm, if there is any obstacle it will sense and give information to the tone detector which will enable the LM555 timer to generate a PWM for the buzzer. The LM555 will generate the pulse which helps to buzz the buzzer so driver can understand that there is an obstacle.
Main Component Explanation:
LM567: is a tone detector which can interpret the frequency generated by the other component and give the output according to the application designed by the engineer. For example if a component is attached to the input of LM567 which can generate a 40 kHz signal , but we to function the following circuit when the component has reached to the 40KHz. At this decision making we will use tone detector. The tone detector is mainly used in touch tone decoders, ultrasonic controls, frequency monitoring and control etc.
LM555: is a timer which can generate a PWM signals in various width and duty cycles. The 555 timer is mainly used to control the other peripherals like motors, detectors, regulators etc.
IR Sensor: the main function of the IR sensor is to produce a beam for certain distance (the distance of the beam is always depends on the IR sensor, different IR sensor have different range of beam distance) if the there is any obstacle in the beam it will conduct and give signal.
Photo Darlington Transistor: the photo darlington transistor will act as a photo detectors. They will conduct to the light or electro magnetic signals. The main function of this transistor is to amplify the input signal of the transistor. But it will work slowly when compared to the other transistors. It is having a maximum frequency of 20 KHz.

Circuit Diagram of Car Parking Guard:Infrared Car ParkinkgExplanation:

  • The reverse indicator light supply is given to the 7805 regulator to give 5v to the rest of the circuit. The diode D6 is used to eliminate the reverse current and wrong supply polarity.
  • When the car is driving in reverse the car battery will provide DC supply the reverse light indicator at the back of the car when this supply came to the reverse light indicator the circuit will have the power supply.7805 will regulate the DC voltage to 5V and give to the IR Sensors through the transistor with 20 KHz modulating frequency of the LM567 (TONE DETECTOR) available at Pin5. The resistor R1 will resists the IR senor current. At this point the pin8 of LM567 is high which will enable the LM555 timer operating in astable multivibrator mode. The output of the timer is enabled which can be assured by the LED (blinking) and also buzzer will beeps at determined rate given by the resistors R6, R7 and capacitor C7. The timer output also is given to the lamp through a transistor. The lamp will blink as a warning signal because of the PWM signal generated by the timer, transistor will work as a switch and resistor R10 will limit the current. This condition is maintained until the 20 KHz signal is received by the pin3 of the LM567.
  • The above condition is when there is no obstacle in the path of the car while taking reverse. If there is a obstacle the IR beam will radiate back to the IR sensor and the 20KHz modulated signal is given to the pin3 of LM567 through photo Darlington transistor, at this point the pin8 of the LM567 is turned to low and also gets locked to detect the 20Khz signal. By this the LM555 is turned low and disabled by this the led will remain lighting and buzzer makes the continuous sound to alert the driver.
Note: This complete circuitry will be attached to the back bumper and placed at the center. The buzzer and led should be placed on the dash board for visibility of light and hearing purpose for the driver.
Make the connection to the reverse indicator light and the circuit in parallel and beware of the polarity.

Comments

Post a Comment

Popular posts from this blog

LED DIMMER WITH CIRCUIT DIAGRAM

In this circuit, at the starting LED glow slowly, then grown brighter and once again slowly it became dim. The basis of the whole circuit is an operational amplifier IC named LM358. Circuit Diagram of LED Lamp Dimmer: LED Lamp Dimmer Circuit Diagram – ElectronicsHub.Org Working of LED Lamp Dimmer Circuit: LM358 is mainly made up of a package which contains two not dependent operational  amplifiers of high gain. The most significant attribute of these IC is that we have no need of the  independent power supply for the functioning of each comparator till the large range of the power supply. LM358 can be employed like transducer amplifier or can be worked as DC gain block etc. The huge DC voltage gain of the LM358 IC is 100db. For the only power supply this IC can work on the voltage range of 3V to 32V while for the twin power supply this IC work on the range of ±1. 5V to ±16V . And moreover large output voltage is also supported by it. Related Post: PWM L...
1 comment
Read more

Automatic Railway Gate Controller with Circuit Diagram

The main aim of this project is to operate and control the unmanned railway gate in the proper manner in order to avoid the accidents in the unmanned railway crossing. In a country like ours where there are many unmanned railway crossings, accidents are increasing day by day. These train accidents are due to the absence of human power in the railway. In order to overcome the accidents due to the above problem we have planned to design the project. Automatic Railway Gate Control System with High Speed Alerting System is an innovative circuit which automatically controls the operation of railway gates detecting the arrival and departure of trains at the gate. It has detectors at the far away distance on the railway track which allows us to know the arrival and departure of the train. These detectors are given to microcontroller which activates the motors which open/close the railway gate correspondingly. Another feature of this circuit is that it has an intellige...
Post a Comment
Read more

Rain Alarm Project

Water is basic need in every one’s life. Saving and proper usage of water is very important. Here is an easy project which will give the alarm when there is rain, so that we can make some actions and save the rain water. As a result, we can increase the water levels of underground water by using underwater recharge technique. Rain water detector will detect the rain and make an alert; rain water detector is used in the irrigation field, home automation, communication, automobiles etc. Here is the simple and reliable circuit of rain water detector which can be constructed at low cost. Rain Alarm Project Block Diagram: Rain water sensor is the main component in the circuit. For this rain sensor, no need to go and buy in the market or online. We can do it ourselves just by taking the piece of Bakelite or mica board and aluminum wire. Bakelite or mica board should be made completely flat and aluminum wire should be pasted on the flat board as shown in the figure below o...
Post a Comment
Read more