Intelligent Lighting Control Using Android Application

Intelligent kindling Control Using Android ApplicationDivya Srinivasan, N.R.Raajan, Jayakumar V.K, Manonmani PAbstractIn this era where smartness is the key, automatic governances argon preferred over manual ones. An important finishing of smart technology is efficient vitality utilization, which is the fatality of the hour. Energy consumption give nonice be minimized by spell off lights when they be non need, optimizing light source levels to suit workers and by encompass green technology. One simple commission to minify carbon whole step is the usage of a lighting go steady clay which delivers light as per the requirements and avoid unnecessary wastage. In this topic, a lighting correspond system using an android finish has been proposed. Android is one of the widely employ open solution mobile plat have and the exploiter base is ontogenesis faster day by day. As more pot are using smart phones, compulsive light using an android application is cheaper, e asier and cost effective.Keywords Light control, Arduino board, GSM/GPRS module, Relay board, Android applicationI. INTRODUCTION cut back energy consumption and increasing drillr comfort have continuously been main objectives of any intelligent mental synthesis in todays scenario. Meeting these two demands is a complex task. This paper presents an effective way to reduce energy utilization and increase user comfort. In this paper, Arduino, a microcontroller is used. It is an open-source embedded platform where one burn down write programs and swan it using hardware. Arduinos have the ability to sense the environment by getting input from different sensors and it cease control its surroundings by controlling light, motors etc. The conference between a smart phone and microcontroller is launch through a GSM/GPRS module. A GSM/GPRS module is same as that of the linguistic rule mobile phone and it needs a SIM card to broadcast. It does the job of a normal mobile phone. This type of intercourse is called weapon to Machine (M2M) communication. What it core is that both wired and receiving set systems are al upseted to interact with other devices. It enables the run for of data between tools and finally between humans and machines. Irrespective of the constitution of the data or machine, information flows in the same way, which is starts from a machine .Then it passes over a network and then through a checkpoint or gate to a system where it potful be evaluated and acted upon. The aim of the M2M hardware is to provide an interface between the machine and the network. This paper deals with this M2M communication. Work to be done by the end user is very simple. Wireless communication makes human life easier and simpler. And especially with mobile, everything is instant and reachable. The block diagram of the proposed system is shown in fig 1. common fig 1.General Block DiagramII. GSM MODEMSGSM modems are untold like GSM devices which helps in provid ing GSM functionality according to our needs. A complete phone can be built using a GSM modem but that would be a waste of important resources like time, which is of the essence, and money, because a phone would work divulge to be more cost effective. DTMF can help us control remotely, but DTMF (Dual Tone Multi Frequency signaling) in the aspects of monitoring has its own limitations.In these cases GSM modems can really be helpful. GSM modems can play a key government agency in projects which requires Remote Monitoring and Control. In this way Machine to Machine communication can be established. Pre-defined commands can be used to control GSM modems by sending them serially. These pre-defined commands are cognize as AT commands. In this paper the focus is on messaging only. AT commands also known as theHayes commands, is a specific command languageactually developed for theHayesSmartmodem. The command commemorate comprises of a series of short text chemical chains that combine together to give complete commands for operations like dialing of good squirms, call termination and the required parameter changes of the connection network. The Hayes command delimitate is one of the some commonly used and is available in numerous variations.III. HAYES COMMANDS whatever basic commands which are required to perform basic telephony operations are mentioned belowMessagingSet Message Type as Text AT+CMGF=1Set Message Destination hail Type Message AT+CMGS=+91XXXXXXXXXXWhen this command is entered, there is a agile of the GSM modem terminal wherein the message to be sent is typed. After the message in entered, Ctrl+Z is pressed to exit terminal prompt. Once all the to a higher place steps are followed, the message allow foring be sent to the user by the GSM modem.In addition to the above commands, a set of straight messages will be sent by the GSM modem when an SMS or Call is achieved. just about of the messages are mentioned below.Incoming SMSIncoming SMS returns a message+CMTI SM, 23 lead SMSTo read the incoming SMS, the command used isAT+CMGR=Xwhere the number is X which is returned at the end of the+CMTI output signal above. For example it is 23The SMS is received in the chase way+CMGR REC UNREAD,+91XXXXXXXXXX,phonebook entry, Date, TimeMessage TextThe above set of information is enough for to work with the GSM modem.Using Arduino IDE, code is written to receive message from GSM modem and the message is processed in the controller. Light is switched on or off only when the incoming message matches with the string written in the program.The Arduino Uno is a controller board establish on theATmega328. It has 14 I/O immobilises (6 of which can provide PWM o/p)-Digital, a 16MHzceramic resonator, a USB connection, analog I/P-6, a power cord, an In Circuit incidental Programming(ICSP) head word and a reset button. The specifications of Arduino Uno rev3 are shown in table 1.Table 1 Arduino Uno SpecificationsIn addition to the abov e, dedicated functions are available for some of the pins concomitant 1 (TX-Transmission) and 0 (RX-Reception). It is used to receive and transmit TTL (Transistor -Transistor Logic) serial data. The pins are linked to the equivalent pins of theATmega8U2USB-to-TTL Serial chip.External Interrupts 2 and 3.These two pins can be designed to initiate an interrupt when any of the mentioned cases happens a low abide by occurs, a falling or rising edge, a value change.PWM 3, 5, 6, 9, 10, and 11.Provide 8-bit PWM output with theanalogwrite() function.SPI 10 (SS), 11 (MOSI), 12 (MISO), 13 (SCK).These pins support SPI communication using theSPI library.LED 13.There is an LED, which is in-built, is linked to the pin (digital) 13. If the pin has a in high spirits value then its in ON state, if it has a mild value its in OFF stateThe Arduino UNO has the capability to communicate with a computer, another Arduino, or other controllers. Themicrocontroller used in this paper provides UART TT Logic (5Volts) serial communication, which is obtainable in pins (digital) 1 (TX) and 0 (RX).In anATmega16U2on the board serial communication is done over USB and appears as a virtual communication port. In the case when ATmega16U2 is used, away drivers are not required and the USB COM drivers (standard) are used.The Arduino software also includes controls which allow text based data to be sent and received. The Rx (Receive) and Tx (Transmit)LEDspresent will blink when data is cosmos sent from USB to serial chip or to any other terminal. Aserial libraryin the form of a software present in Arduino permits serial communication on any of the pins (digital) of Uno. The Arduino software IDE is used to configure the Arduino Uno. TheATmega328on the Arduino Uno comes preburned with abootloaderwhich allows codes to be uploaded to the board without the use of a programmer who has expertise in hardware programming. Communication is mathematical through the use of STK500protocol. The bootloader ca n be bypassed and the controller is programmed using the ICSP (In-Circuit Serial Programming)IV. HARDWARE CONNECTIONSThe SIM Card is inserted into the GSM modem.The Tx (Transmit) pin of the GSM modem is connected to pin (digital) 3 of the Arduino.The Rx (Receive) pin of the GSM modem is connected to pin (digital) 4 of the Arduino.The Gnd(Ground) pin of the GSM modem is connected to the Gnd(Ground) pin of theArduino.The GSM modem uses an external 12Volts DC Adaptor as power source (The+5Volts from internal source of Arduino is not sufficient).It is made sure that the network LED flashes with a 2s ascertain and not 1s delay. 2s delay means it is connected to network, 1s delay means not unable to connect to network.Once the connections are minded(p) and the code is uploaded to the Arduino board, the string which is given in the code is sent as a message, GSM will receive the message and it will send it to Arduino which in turn will process the message and the corresponding action wil l take place. If number of lights is counted, then for each light some string has to be given in the coding. Instead of sending each message, development of an android application user friendly. Through an android app, message can be given. Since the GSM SIM900A is a GSM/GPRS module, control lights through android app are also possible. Authorization can also be given. It will provide restricted access people to control lights.The bet end of the Android app looks like as shown in fig 2 and fig 3.Fig 2.Android App Password Screen Fig 3.Android App User InterfaceUsing the swipe icon in the front panel, the lights can be turned on/off using this android app. as well as only the users who know the password can control the lights. figure of speech of lights which can be controlled depends on the number of ports the controller has. The controller output is given to relay boards and the output of the relay board is given to switches. In this way an android application and light is a ter minal device. Also an admin is created and he/she will get the message that who is controlling the light. In this way, protection can be improved.V. CONCLUSIONUnnecessary lighting is one of the premier(a) reasons for energy wastage. The most effective and easy way to curtail this is to turn off lights when they arent required. Lighting control systems can use factors much(prenominal) as occupancy, available daylight and time of day, thus providing significant energy and cost savings, a greater level of flexibility and control for building owners and added comfort for occupants. With increasing user comfort, energy can be protected to a larger extent. Also security is tightened with proper admin rights. Wireless systems reduce the labor, costs and wiring requirements of lighting control when compared to traditional systems. In short, wireless networking can usher in a new generation of smarter lighting control systems which reduce energy utilization and ensure a greener world.