Programmable Remotely Time Controlled Switching of Communication Trunk Station

Goals of Project

• 24 fully programmable outputs

• Up to 256 switch points

• The switch points are stored in flash memory, so there's no need for a backup battery

• The time is kept in sync with where don’t have to bother changing settings

• When daylight saving time is applied.

• Has an internal clock to bridge periods when no signal is available

Circuit Diagram

It consists of the Following :

1.RTC Controller

2. Microcontroller

3.Prorammable Peripheral Interface

4.ULN 2003

5.Relays

6. LCD Module

7.Decoder

8.Remote

9.IR Receiver

Work Done

• The Design of remote is done using remote controller. The choice is made to select the RC5 Coding.

• The design circuit diagram was designed to control 24 devices as shown .

• The concept of RTC (Real time Clock ) to remotely program.

• The security options are created to lock from the station.

Algorithm

• Step 1 To switch ON the Cooling fans that are located at four positions. In the morning all the four fans must be ON they can be remotely programmed.

• Step 2 To switch ON the lights that are located at six positions. In the morning all the lights must be OFF they can be remotely programmed. (Save power)

• Step 3 To switch ON the tower red light that is located at top position of station. In the night must be ON they can be remotely programmed. Indicate Obstruction to Aircraft)

• Step 4 The status of devices can be seen using on an LCD and the locking facility for security can be done.

Work yet to be done

The software coding for proceeding and keeping track of various time based events has be written in ASM language.

Thank You