Sunday, November 09, 2014
Home Automation by Edward Cheung
"This centralized system can control almost all of the lights in my home, a few appliances, the garden irrigation, some window treatments, the Audio/Video system, the security system, and the HVAC (Heating Ventilation and Air Conditioning)."
"I can communicate with the central computer by using keypads throughout the house, any phone in the world (including those inside the home), any browser over the internet, and from my wrist watch. A webcam (with integral pan/tilt) allows me to see what is happening with nothing but a web browser."
Thursday, February 16, 2012
CAN Controller Area Network in Automation
CANopen is a CAN-based higher layer protocol. It was developed as a standardized embedded network with highly flexible configuration capabilities.
In the year 1992, several companies founded the CAN in Automation (CiA) non-profit group, in order to provide technical, product and marketing information.
CANopen-based dust-filtering systems
Hesch (Germany) has developed an industrial dust-filtering systems. The HE 5750 host-controller provides a CANopen NMT master interface to communicate to the sub-layered valve units operating the dust-filters. The entire system can be controlled by means of the Profibus or Modbus interfaces. The embedded filter control software supports the reduction of emission values and energy costs.
The valve controllers are uses to pulse solenoid valves in industrial dust extraction technology. They are controlled via an embedded CANopen network by means of the HE 5750 host-controller. The NMT slave units are attributed locally and technically to one filter chamber each. This concept adapts to any desired number of filter chambers and valves.
CAN in Automation (CiA)
Kontumazgarten 3 DE-90429 Nuremberg, Germany.
Monday, April 12, 2010
CAn Remote Automation-Control with AVR
Every node of the net communicate each other through a robust protocol (CANBus), and the status can be monitored by a PC possibly connected to the Internet.
Other Open Source Home Automation Projects
MisterHouse: Home Automation with Perl
MisterHouse is a Windows/Unix home automation program written in Perl. It can respond to voice commands, web browsers, time of day, serial port and X10 data, external files, etc and can speak via Text to Speech engines.
OpenRemote - Home of the Digital Home
Software for the Internet-enabled Home at openremote.org. An Open Community in the Home Automation and Domotics space. We believe an Open Source approach can revolutionize the way people create, install, and maintain software in the industry.
Monday, August 13, 2007
Samuel M. Goldwasser's latest and most fabulous "Notes on the Troubleshooting and Repair of..." series of comprehensive repair guides for consumer electronic equipment and other household devices. Detailed diagnostic and repair procedures are provided for: small electrical appliances, audio equipment, TVs, VCRs, CD players, computer monitors, microwave ovens, even lawn mowers - and much much more!
Sam's Laser FAQ has a great deal of information on a variety of laser and optics related topics including a comprehensive treatment of diode, helium-neon, argon/krypton ion, and CO2 lasers as well as amateur laser construction including numerous examples of truly home-built lasers. Much of this is not available anywhere else either on-line or in print!
Wednesday, July 04, 2007
TDA5051AHome automation modem
The TDA5051A PDF, is a modem IC, specifically dedicated to ASK transmission by means of the home power supply network, at 600 or 1200 baud data rate. It operates from a single 5 V supply.
- Full digital carrier generation and shaping
- Modulation/demodulation frequency set by clock adjustment, from microcontroller or on-chip oscillator
- High clock rate of 6-bit A/D (Digital to Analog) converter for rejection of aliasing components
- Fully integrated output power stage with overload protection
- Automatic Gain Control (AGC) at receiver input
- 8-bit A/D (Analog to Analog) converter and narrow digital filtering
- Digital demodulation delivering baseband data
- Easy compliance with EN50065-1 with simple coupling network
- Few external components for low cost applications
- SO16 plastic package.