Building lighting automation through the integration of dali with wireless sensor networks
- 1. Building Lighting Automation through the Integration of DALI with Wireless Sensor Networks Abstract: Building automation systems can also be used to control lighting; however, high initial and maintenance costs, the apparent complexity of these systems, and concerns about the interoperability of lighting systems and other building systems have limited such applications. Benefits of using building automation systems to control lighting include the ability to track occupancy and energy use, the ability to monitor and control lighting throughout a large facility, and the ability to minimize peak demand. The potential for energy savings has made the use of automated lighting controls such as timers, occupancy sensors, and photo sensors common in modern buildings. This paper focuses on the integration of Digital Addressable Lighting Interface (DALI) devices in wireless sensor networks. Existing System: In this system the building automation is controlled by using different sensors for different parameters. And the controlling is done automatically when any of the parameters get abnormal. So that status can’t be monitored from remote place. By this method the user or house owner have to be in home to know the status. Hence we go for new system. Proposed System: In this system, using Zigbee technology the building automation like lighting, temperature checking and air conditioning is done by using DALI interface. Here a system with sensors are interfaced with the Microcontroller which is used to monitor the light source, temperature and moisture content of a room are gathered and transmitted to the monitoring section using Zigbee wireless communication. From the receiver end they can control the system with separate address. So the control data will reach the proper node and after receiving the data
- 2. the controller will controls the devices. A LCD display is used in every section for displaying the status. Block Diagram: Node 1: Power Supply 2.4GHZ 100 LDR sensor 80 Micro 60 Temperature Sensor 20 0 LCD Display Node 2: West 40 Controller AT89C51 Humidity sensor East North Driver Circuit 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Driver Circuit Electrical devices Electrical devices
- 3. Power Supply 2.4GHZ 100 LDR sensor 80 Micro 60 Temperature Sensor East West 40 Controller North Driver Circuit 20 AT89C51 0 Humidity sensor 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Driver Circuit LCD Display Electrical devices Electrical devices Control section: Power Supply 2.4GHZ 100 80 Micro 60 East Controller 40 20 AT89C51 MAX 232 0 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Hardware Requirements: West North PC
- 4. 8051 Microcontroller Zigbee Temperature, Humidity, LDR sensors Relay Driver Max232 LCD Electrical devices PC Software Requirements: Keil C Compiler Embedded C Advantages: Using Zigbee technology, the control is easily transmitted with individual address. Its response time is higher than other wireless communications. Applications: This system can be used in any conditions and anywhere. Multiple numbers of devices can be interfaced with this system.