DESIGN OF SENSOR MODULES OF ACTIVE & INTELLIGENT ENERGY-SAVING SYSTEM AIM: To develop the intelligent energy-saving system to accomplish the goal of real energy-saving. The system design includes sensors of temperature, humidity, and luminance and power detector. PURPOSE: The purpose of this project is to develop intelligent energy-saving system to accomplish the goal of real energy-saving. BLOCK DIAGRAM: RECEIVER: ` ZIGBEE TRANSCEIVER MICRO CONTROLLER LCD POWER SUPPLY PC TRANSMITTER: DESCRIPTION: The energy-saving system would collect all the running parameters in the energy-MICRO CONTROLLER ZIGBEE TRANCEIVER TEMPERATURE SENSOR POWER SUPPLY LCD DC MOTOR HUMIDITY SENSOR POWER SENSOR BULBconsumption system such as room, house, office, factory, community, or any space. The collected parameters including people number, light luminance, temperature. CO2, power used, and humidity which would influence the dynamic running of the system, and the collected parameters would be sent to Servo-computer and embedded system middle-way through Bluetooth and ZigBee web-net to decide the feedback control parameters, the design conception was shown in Fig. 1. The sensors of temperature, luminance, humidity, power used in this energy-saving system were design with modules to meet with different situations of power consumption such as power system, lights luminance, air conditioning, official affairs machines and facilities, and the information stream was used large number of technology of Wireless Sensor Network (WSN) so as to construct an, active & intelligent energy-saving system. All luminance, humidity, power used in this energy-saving system were design with modules to meet with different situations of power consumption such as power system, lights luminance, air conditioning, official affairs machines and facilities, and the information stream was used large number of technology of Wireless Sensor Network (WSN) so as to construct an, active & intelligent energy-saving system. All sensor modules were designed with microprocessor as the core of control system, consumers could combine some certain module to case-by-case set up the energy-saving system in their own need. TECHNOLOGY: Now a day's every system is automated in order to face new challenges. In the present days Automated systems have less manual operations, flexibility, reliability and accurate. Due to this demand every field prefers automated control systems. Especially in the field of electronics automated systems are giving good performance. And this is realized by making use of Zigbee technology for communication. Zigbee is new wireless technology guided by IEEE 802.15.4 Personal Area Network standard. It is primarily designed for the wide ranging controlling applications and to replace the existing non-standard technologies. It currently operates in 868MHz band at a data rate of 20Kbps in Europe, 914MHz band at 40kbps in USA, and the 2.4GHz ISM bands Worldwide at a maximum data-rate of 250kbps. SOFTWARES: 1. Embedded C 2. Keil IDE 3. Uc-Flash or ISP 4. Express PCB HARDWARES: 1. ARM Microcontroller. 2. LDR 3. Temperature sensor 4. Humidity sensor 5. LDR 6. power sensor 7. LCD 8. Bulb 9. Dc motor 10. Zigbee transceiver 11. Power Supply RESULT: The result of this project to reduce energy consumption for residential commercial building and industrial purposes.