Smart Home using Kinco PLC

This paper describes about smart home using Kinco PLC programming. Nowadays, smart homes are popular in everywhere. A smart home can provide its home owner with comfort, security, energy efficiency, and convenience at all times, regardless of whether anyone is home. In this report, smart home is designed to control multiple systems by using PLC. Gate door control is combined with radio frequency remote control and Main door security is designed with access control which can work with RFID card and password. There is also another security solution, CCTV and fire alarm system for monitoring and fire-fighting. For the lighting control, it can automatically ON/OFF with PLC programming. Moreover, garage door control system is added. User friendly operation and less error solution are designed for home automation.


INTRODUCTION
Home automation is building automation for home called a smart home. A home automation system will control lighting, temperature inside the house, entertainment systems, and electronic appliances. It also includes home security such as access control and alarm systems. In this report, PLC (Kinco) is used as the core and control the home's security systems and other appliances. Most of the smart home uses microcontroller but in this research what innovated is the prototype of smart home using PLC which is the chosen major.
To keep the house from harms, the information of what is happening in the house has become essential. This research does fulfill this need by monitoring the house and by notifying the user via alarms, buzzer and monitor. One more thing, this sample assists the user by opening and closing the gate door with remote control and automatic garage control.

Operation Summary
From remote controller, the gate door open/close and the lighting on/off of the fence can be controlled. As soon as the gate door opens, the CCTV 1 starts working and showing the image of the gate to the monitor. When the gate door closes, CCTV 1stops working. The garage door can be opened by passing the car through the photoelectric sensor that will close automatically 30 seconds later.
As the main door bell is rung, the CCTV 2 starts working like CCTV 1 and stops 15 seconds later. When the right password is typed, or the recognized RFID card is shown, the solenoid lock will release. Two photoelectric sensors are used in the main house lighting control system and using the counting program the lights will switch on and off. For firefighting, flame detector and smoke detector are used as inputs and buzzer and alarm are used as outputs.

Flow Chart and Control Program of the System
This section discusses about the flow charts and control program of the system. Before the software implementation, the author needs to draw the flow charts. By doing these, the software implementation is successfully installed. And then the Kinco PLC programs will be constructed using ladder programming. In these programming languages, there are many instructions. Among them, some instructions are used in this system. Then, the author needs to assign the input and output addresses to know the Kinco PLC. The following Manual_Close open button from the remote is pressed, the RF_A becomes close state and the gate will open. When the close button from the remote is pressed, the RF_B becomes close state and the gate will close. In opening state, when the gate door touches the limit switch, the Limit_Switch_12 will become close and the output pulse reaches Gate Close and the opening state is stopped. The closing states also work the same as the above method. The following figures show the initial state of the system and the components used in the system and the respective program.

CONCLUSION
The main aim of this process is to apply PLC to design Home Automation system and all objectives in this research are successfully done as planned. Finally, the basic control system and logic design application can be used as a reference to design other applications of automation system. The smart home system has been successfully designed and simulated using Kinco Builder software. The home automation is designed with gate door control, CCTV, access control unlock system, fire alarm system, auto lighting control system and garage door control system.