Jun 22 2010
Zilog, a totally owned subsidiary of IXYS, and IXYS have recently introduced the state-of-the-art control and sensing technology useful for motion detection applications like energy management, intrusion, lighting control, and customer sensing applications.
The ZMOTION control and detection range of Zilog features a portfolio of high-performance microcontrollers that are particularly designed for the speedy development and employment of products that need control, enabled through passive infrared (PIR) motion detection.
These solutions have combined the innovative novel software design that has increased motion detection capabilities along with in-built software algorithms and the rich peripheral set and programmability of Flash Z8 Encore XP F082A range of microcontrollers of Zilog.
This combination has been tuned with quality pyros and lens combinations for a total solution package. This package has been optimized for control and multiple motion sensing applications. The customer advantages with the novel solutions include flexibility and unparalleled performance while designing their gadgets, field-based firmware changes, faster product development cycles, and more flexible manufacturing.
Current sensor designs have considerable limitations due to the gain and filter stage. The signal is filtered to remove critical information that enables a reliable decision. Any signal discontinuity that exists between the filter stage and the pyro-electric sensor will be similar to a low-level type of infrared energy signature at the gain stage’s output, thereby impacting the detector’s maximum range, stability and sensitivity.
The ZMOTION Detection and Control systems’ architecture offers a very simplified design in comparison to the customary approach. The pyro-electric sensor has been interfaced with the high-resolution type Sigma/Delta-based Analog to Digital Converter (ADC) on the microcontroller’s input without any temperature compensation, AC coupling, filtering or gain.
This enables the microcontroller to function with the unmodified signal and notice the real-time effects due to shifts in transients, DC offset, transients and various non-motion-based signal variations.
Source: http://www.Zilog.com