Public Garden Automation

Project Cost: 4,800

Project Code: 1180

Download the Synopsis of the project

Description of the Public Garden Automation project:

As we have seen that all Sensor Based Projects for Engineering Students solve one or another problem in society. And the most important problems faced are the misuse of electricity and its wastage. Sometimes lamps are left ON due to the carelessness of the authorities and the workers. It results in the wastage of electricity. Water wastage is another problem that needs to be dealt with. Public Garden Automation project helps to overcome all these problems.

Firstly the Microcontroller around 4.00 pm switches on the water supply once to water the entire garden a few hours before opening the garden to the public. Next, the gate is opened by running the motor which is driven by a motor driver operated by the Microcontroller. At around 6.00 pm the lights are switched on depending upon the output of the LDR and the lights remain functional till the garden remains open for visitors.

The garden remains open for about three hours and so around 8.50 pm a buzzer is sounded to indicate closure of the garden and alert the visitors. The gate is then closed at 9.00pm and one of the two lamps is switched off. One lamp is kept on throughout the night. In the morning the remaining lamp is switched off depending upon the signal sent by the LDR, light-dependent resistor to the Microcontroller. These are the step involved in the operation of the circuit and the public garden automation. The microcontroller is used to supervise the actions of all other devices and to control the entire set of operations.

Block Diagram:

You will get the following documents with this project:

1. Project Report in pdf format and in doc (word) format
2. Circuit diagram
3. PCB layout
4. Microcontroller program in assembly language
5. Hex file of the microcontroller code
6. Datasheets of all the components / ICs used in the project

Project Photographs:

Description in detail:

1. POWER SUPPLY UNIT: Power supply unit provides a 5V regulated supply to the microcontroller AT89S51, LCD, LDR, motor driver. It provides a 12V regulated supply to the motors and relays.
2. Light dependant resistance – LDR: The output of LDR is given as input to the signal conditioning circuit the output of which is given to 89S51 on input side to control the state of lamps.
3. MICRO CONTROLLER AT89S51: It processes the calculated digital values by converting it to ASCII & sends it to the LCD display in order to display the data. Also depending upon the setting at the input, it controls the output
4. LIQUID CRYSTAL DISPLAY: As the name suggests, it is used for displaying purpose. It displays the current date, time.
5. RELAY: It is used to control the flow of water in the garden just like any simple valve and is driven by a relay driver.
6. KEYPAD: The keypad is used for entering the time and date and also can be used for manual override.

Applications of Public Garden Automation system:

1. This small-scale project can be implemented with minimum cost and resources in any public garden which are generally maintained by municipal corporations.
2. This project can also be used at private gardens like company or universities or educational premises like school / colleges
3. With little modifications, this project can be used in industries. By this the light bulbs can be controlled with respect to intensity of light in the environment. Also, various industrial devices can be turned on/off with respect to desired time for the specific interval of time.

Advantages:

1. This project saves electricity because lights are turned on only when there is insufficient light in the environment. Thus it avoids wastage of electricity.
2. This project also saves water because water supply is turned on only for specific time period. Thus it avoids wastage of water. Thus it helps in proper utilization of the available resources
3. All process in Garden like Gate opening, water supply, light controlling are fully automated. Thus it does not require any human attention. So its helpful for people who are gardening.

Future Development:

1. We can monitor various hazardous parameters like fire, and bomb detection using fire sensors and metal detectors respectively
2. This can be expanded in the sense of security. Using metal detectors and CCTV cameras security of the garden can be enhanced.
3. We can add a voice playback device to inform users about the status of various devices. Also by using GSM technology further control of water supply and lights using mobile can be achieved.

Video of the project: Public Garden Automation

YouTube video coming soon

Question: We want to add some extra features in this project like automatic irrigation, temperature & humidity display, memory backup using EEPROM, and a metal detector on the gate. Is it possible?

Answer: Currently this PCB does not have ADC (Analog to digital converter) so it will not be easy to monitor temperature and humidity. But yes, we can provide a metal detector.

Question: Does this project have the RTC IC, Real time clock IC, DS1307?

Answer: No, this project uses the internal clock of the microcontroller instead of the RTC real-time clock IC DS1307.