Third Prize
Data by Z-mail
(complete abstract)

Even well-tested equipment can experience new conditions in the field that result in failure. However, the remote data-monitoring capabilities of the Data by Z-mail system can give designers more accurate results from field tests and help prevent costly field retrofits. The Data by Z-mail system is a bench-top device that reads analog and digital data from a UUT (unit under test) every hour and sends that data out via e-mail and local RS-232. The Z-mail system is connected to desired test points of a UUT (e.g., machine, circuit board, or test platform). This allows the engineer to monitor UUT data from any place in the world via e-mail. Test points can be either analog or digital signals. The analog inputs can be from any device that outputs 0 to 5 VDC. The digital inputs can be from digital output type circuits. Example input devices that output analog voltages are pressure transducers, temperature sensors, photo sensors, power supplies, and various outputs from analog circuitry. Example input devices that output digital signal levels are microprocessor outputs, intelligent sensors, PLC outputs, and various outputs from digital circuitry.

Bruce Pride
Gilsum, New Hampshire
BrucePride@PridEEmbedded.com
Prize: Portable DVD Player & $500

Third Prize
DMX512 Dimmer
(complete abstract)

A simple dimmer switch may be fine for controlling a single light, but when it comes to dimming multiple lights or interfacing to an existing control system, the DMX512 Dimmer really shines. The dimmer can be controlled through its serial port or networked to other dimmers using the industry-standard DMX512 protocol. The eight analog inputs allow interfacing to standard 0 to 10-V control signals or can be used as an alternative control path. Using IGBT drivers allows the dimmer to handle up to 500 W. By using IGBTs to control the lights, the dimming can start on the leading edge of the power cycle. This allows for a smooth turn on/off, thereby eliminating the rapid rise times that produce noise. This design eliminates costly noise filtering and extends the life of the lights by reducing thermal shock.

Charles Fricker
Merritt Island, Florida
yfricker@gowebway.com
Prize: Portable DVD Player & $500