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The project is aimed to design a data logger system using which the physical parameters such as temperature, humidity, fire and light can be monitored. RF technology will be used in this project for wireless communication as it is reliable and can be applicable for long distance communication. This project uses wireless communication, RF. RF has the advantages of fast communication for longer distances and reliability. The RF modules used here are STT-433 MHz Transmitter along with an RF encoder HT12E, STR-433 MHz Receiver along with an RF decoder HT12D. The project is designed in such a way that we will interface a temperature, fire, humidity and light sensors to an 8 bit microcontroller 8051, on the transmitter side. And the RF transmitter is also interfaced to the controller through an RF encoder to encode the data received by the controller. Hence the encoded data will be transmitted by the transmitter over the medium and will be received by the RF receiver which will be interfaced to the controller through an RF decoder, on the receiver side. The RF decoder is used to decode the received data into a 4 bit digital data which will be fed to the controller. So now the controller will perform the predefined tasks by monitoring the received decoded data. Here an LCD will be interfaced to the controller to display the corresponding data regarding the status of the sensors and a buzzer for an audio indication of any sensor activation. This project uses regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Full wave bridge rectifier is used to rectify the ac output of secondary of 230/12V step down transformer.
The project is aimed to design a data logger system using which the physical parameters such as temperature, humidity, fire and light can be monitored. ZIGBEE technology will be used in this project for wireless communication as it is reliable and can be applicable for long distance communication. ZIGBEE is a specification for a suite of high level communication protocols using small, low-power digital radios based on the IEEE 802.15.4-2003 standard for Low-Rate Wireless Personal Area Networks (LR-WPANs). ZIGBEE is targeted at radio-frequency (RF) applications that require a low data rate, long battery life, and secure networking. ZIGBEE protocols are intended for use in embedded applications requiring low data rates and low power consumption. ZIGBEEs current focus is to define a general-purpose, inexpensive, self-organizing mesh network that can be used for industrial control, embedded sensing, medical data collection, smoke and intruder warning, building automation, home automation, etc. The resulting network will use very small amounts of power. The project is designed in such a way that we will interface a temperature, fire, humidity and light sensors to an 8 bit microcontroller 8051, on the transmitter side. And an XBEE transceiver is also interfaced to the controller through a serial line driver IC MAX232, to transmit the status of the sensors. This transmitted data is being received by the other XBEE transceiver on the receiver side and will be fed to the controller. Here a PC is also interfaced to the controller through a line driver IC MAX232, to display the status of the sensors. So we can monitor the status of the sensors through the hyper terminal of PC. So based on the received data, controller will perform the predefined task of sending corresponding data to the PC. We can also design a front end application on PC by using C# .NET, for the good visual effects. The application always interact with the serial port, so there is no need of hyper terminal, we can monitor the status in the application itself. This project uses regulated 5V, 500mA power supply. 7805 three terminal voltage regulator is used for voltage regulation. Full wave bridge rectifier is used to rectify the ac output of secondary of 230/12V step down transformer.
Amvitech (amvitech)
Ameerpet, - Phone: +40 25638547, Hyderabad, Telangana, India
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