Arduino Based Forward and Reverse Sliding Gate control using 3 phase motors and RFID with code

                                                                  Introduction                                                                                                              
  aidgambinya@gmail.com

The automated 3 phase forward and reverse sliding gate employs a microcontroller which controls the opening and closing of the sliding gate using radio frequency identification technology. This system focusses mainly on a control method which eliminates physical pressing of buttons to automatically open or close electric sliding gates and also helps in ensuring that only authorised personnel can gain access through the gate. This a security measure which controls criminal activities and unlawful passage through various entry points of restricted areas.

Aim  

To automatically control and monitor movement of the three phase induction motor sliding gate in both forward and reverse directions.

Objectives

       1)   To achieve contactless switching of the sliding gate controls

       2) To control the movement using limit switches

       3) To restrict entry to only authorised and registered personnel

Relevance to society

1) Elimination and control of unlawful entry into restricted and protected areas

2) Help control criminal activities through assigning detecting identities of registered individuals in an organisation or society

                                        Relevance to course

      1) Contactless switching of the inputs (start/stop) hence less wear and tear

   2) Economic as there are lower maintenance costs and any necessary changes can easily be implemented in software rather than in physical hardware

     3) Improved switching speed and reduced manual labour of physically switching the start and stop buttons

    4) Less space is occupied and also less power is consumed since controller uses low DC Power signals and the control components are contained on a small breadboard.

       5)Noiseless and user friendly control

                                       ADVANTAGES

    1)  Noiseless and user friendly control

   2)Less space is occupied and also less power is consumed since controller uses low DC Power signals and the control components are contained on a small breadboard.

   3)   Durability-system stays in operation for a longer period due to less wear and tear

   4)   System speed is faster than many other equivalent systems and is easy to maintain.

                                           DISADVANTAGES

1) Cost of designing and installation is high since complex circuitry is involved and expert personnel are needed for designing and coding.

Block diagram

refer to link above for block diagram,schematics,PCB layout and code

Block diagram description

The radio frequency identification tag contains the unique identification code for the tag hold and this code is decoded by the reader which sends the information to the microcontroller. When the microcontroller receives the data, it compares it with the programmed code in its memory and if there is a match, it then sends an output signal of 5 volts to the relay driver which switches on or off the relay thereby energising the forward or reverse contactor thereby closing or opening the sliding gate. The limit switches confirm the close and open positions thereby stopping the gate at the exact position.

aidgambinya@gmail.com