30-04-2017, 05:25 PM
I am a student of class 12. Please help me in my project on electronic eye..
|
physics class 12 project on electronic eye
|
I am a student of class 12. Please help me in my project on electronic eye..
01-05-2017, 03:52 PM
Electronic eye is also called magic eye. As automation is the emerging technology these days, imagine a door bell that automatically sounds when a person visits your home. The electronic safety systems available on the market are expensive, and programming is very difficult for a system based on microcontrollers.
It can be used as an automatic guest indicator on the door if it is installed on the bottom of the door entrance. Once installed in the door there is no need to install a call bell. It can also be used in homes or on banks as an anti-theft alarm.
Fix the LDR to the wooden door or a cabinet to be protected in such a way that when someone tries to open it, a shadow falls on the LDR and the circuit is activated and produces a pleasant sound through the buzzer.
This electronic eye circuit uses CMOS NO I.C door 4049. CD 4049 contains six independent NOT gates in one package; We have only used one. The output of the door does not come out high (1) when the input pin 3 is at a lower level than the 1/3 level of the supply voltage, on the other hand the output goes low (0) when it is above the level 1/3. Such small changes in the voltage of the pin-2 are sufficient to change the output level (pin-3) from 1 to 0 and 0 to 1. The output has only two high and low states and can not remain in any intermediate stage. It is powered by a 9V battery for portable use. The circuit is economical in energy consumption. Pin 1 is connected to the positive supply and pin 8 is connected to ground.
To detect the present of an object we have used LDR and a light source. LDR is a special type of resistance whose value depends on the brightness of the light that falls on it. It has a resistance of about 1 mega ohm when it is in total darkness, but a resistance of only about 5k ohms when the brightness is illuminated. It responds to a large part of the spectrum of light.
A potential divider circuit with LDR resistance and 220 KΩ connected in series. The voltage is directly proportional to the conductance, so more voltage will be obtained from this splitter when LDR is receiving light and low voltage in the dark. This divided voltage is given at the gate input NO.
![[Image: electronic%20eye.jpg?189db0]](http://circuiteasy.com/circuit_diagram/electronic%20eye.jpg?189db0)
As soon as LDR dims the input gate voltage does not fall 1/3 of the supply voltage and pin 2 rises and the LED or buzzer that is connected to the output is activated.
The advantage of using the logic gate is that data can be easily sent to another digital interface device, ie one can easily feed the data to the computer via parallel port or for further processing.
It can be used as an automatic guest indicator on the door if it is installed on the bottom of the door entrance. Once installed in the door there is no need to install a call bell. It can also be used in homes or on banks as an anti-theft alarm.
Fix the LDR to the wooden door or a cabinet to be protected in such a way that when someone tries to open it, a shadow falls on the LDR and the circuit is activated and produces a pleasant sound through the buzzer.
This electronic eye circuit uses CMOS NO I.C door 4049. CD 4049 contains six independent NOT gates in one package; We have only used one. The output of the door does not come out high (1) when the input pin 3 is at a lower level than the 1/3 level of the supply voltage, on the other hand the output goes low (0) when it is above the level 1/3. Such small changes in the voltage of the pin-2 are sufficient to change the output level (pin-3) from 1 to 0 and 0 to 1. The output has only two high and low states and can not remain in any intermediate stage. It is powered by a 9V battery for portable use. The circuit is economical in energy consumption. Pin 1 is connected to the positive supply and pin 8 is connected to ground.
To detect the present of an object we have used LDR and a light source. LDR is a special type of resistance whose value depends on the brightness of the light that falls on it. It has a resistance of about 1 mega ohm when it is in total darkness, but a resistance of only about 5k ohms when the brightness is illuminated. It responds to a large part of the spectrum of light.
A potential divider circuit with LDR resistance and 220 KΩ connected in series. The voltage is directly proportional to the conductance, so more voltage will be obtained from this splitter when LDR is receiving light and low voltage in the dark. This divided voltage is given at the gate input NO.
As soon as LDR dims the input gate voltage does not fall 1/3 of the supply voltage and pin 2 rises and the LED or buzzer that is connected to the output is activated.
The advantage of using the logic gate is that data can be easily sent to another digital interface device, ie one can easily feed the data to the computer via parallel port or for further processing.
19-11-2017, 01:22 PM
Can we IC 4047 instead of ic 4049 in this project of electronic eye as I am not getting ic 4049
20-11-2017, 10:43 AM
The electronic eye has a lot of use in this electronic age, also known as magical eye. It can be used as an automatic guest indicator on the door, if installed in the lower part of the door entrance. Once it is installed in the door, it is not necessary to install a call ringer. It can also be used in homes or banks as an anti-theft alarm.
Fix the LDR on the wooden door or in a locker to protect it so that when someone tries to open it, a shadow falls on the LDR and the circuit activates and produces a pleasant sound through the buzzer.
This electronic eye circuit uses the NOT gateway of CMOS I.C CD 4049. The CD 4049 contains six independent NOT gates in one package; we have only used one. NO the output of the door goes high (1) when the input pin 3 is at a level lower than 1 / 3rd level of the supply voltage, on the other hand the low output (0) when it is above 1 / 3rd level. Therefore, a small change in pin-2 voltage is sufficient to change the output level (pin-3) from 1 to 0 and from 0 to 1. The output has only two high and low states and can not remain at no intermediate stage. It is powered by a 9V battery for portable use. The circuit is economical in energy consumption. Pin 1 is connected to the positive supply and pin 8 is connected to ground.
To detect the present of an object, we have used LDR and a light source. LDR is a special type of resistance whose value depends on the brightness of the light that falls on it. It has a resistance of approximately 1 megaohm when it is in total darkness, but a resistance of only about 5k ohms when the brightness is illuminated. It responds to a large part of the light spectrum.
We have created a potential splitter circuit with LDR and 220 KΩ resistor connected in series. We know that the voltage is directly proportional to the conductance, so we will get more voltage from this divider when LDR is receiving light and low voltage in the dark. This split voltage is given to the door entry NO.
As soon as the LDR goes dark, the input voltage of the gate does not fall 1/3 of the supply voltage and pin 2 goes high and the LED or the buzzer that is connected to the output is activated.
The advantage of using the logic gate is that the data can be easily sent to another digital interface device, that is, one can easily feed data to the computer using a parallel port or for further processing.
![[Image: electronic%20eye.jpg?189db0]](https://circuiteasy.com/circuit_diagram/electronic%20eye.jpg?189db0)
|
« Next Oldest | Next Newest »
|
Important Note..!
If you are not satisfied with above reply ,..PleaseASK HERE
So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
| Possibly Related Threads... | |||||
| Thread | Author | Replies | Views | Last Post | |
| Anchoring script for farewell to class 10 in nepali | 0 | 14,715 |
21-02-2020, 05:13 AM Last Post: |
||
| bst project class 12 on marketing management on m | 0 | 1,050 |
02-11-2019, 03:04 PM Last Post: |
||
| an atm with an eye documentation | 0 | 1,181 |
22-02-2019, 07:04 AM Last Post: |
||
| Enginnering Physics by P K palaniswami | 0 | 1,513 |
27-01-2019, 10:25 AM Last Post: |
||
| project on marketing management for class 12 on mobile phones | 3 | 2,718 |
20-12-2018, 12:22 AM Last Post: |
||
| class 12 business studies project on marketing management pdf on mobile phones | 3 | 3,609 |
20-12-2018, 12:16 AM Last Post: |
||
|
physics | 0 | 972 |
18-12-2018, 08:38 AM Last Post: |
|
| biology project for class 12 for cbse on dna | 1 | 1,092 |
14-12-2018, 12:08 AM Last Post: Mohd Kafeel |
||
| project on marketing management for class 12 on handbags | 0 | 1,684 |
11-11-2018, 11:04 AM Last Post: Guest |
||
| fire alarm project for class xii pdf | 0 | 1,196 |
31-10-2018, 08:37 PM Last Post: Guest |
||