Showing papers on "Sensor node published in 1992"

Communication in Decentralized Data-Fusion Systems

Abstract: This paper addresses the problem of communication in decentralized data fusion systems. We consider sensor networks in which there is no central fusion center and in which no single sensor node has global knowledge of network topology, only communicating to its nearest neighbours.

Flexible architecture for CMOS sensor interfaces

Abstract: The authors describe the design and implementation of an interface circuit for CMOS sensor systems. The objective is to provide a microprocessor compatible sensor on a single chip. A system architecture that minimizes analog content and where most of the signal processing is done digitally is illustrated. Great flexibility and robustness were achieved by the use of a sigma-delta modulator and by introducing the sensor element directly in the modulator's first stage. Example applications for a magnetic sensor and a humidity sensor are presented. >

Monitor for sensor point(s) with sensor signal reception - is formed by transmitter of control signals in presettable time intervals

Abstract: The sensor point monitor acts on a transmitter (1), designed for reception of sensor signals (14) from the point sensor (2). Within the active region the sensor signals are continuously transmitted to a receiver (7). At least one transmission unit forms a transmitter (3), transmitting control signals in presettable time intervals in a wireless transmission of the sensor and control signals to the receiver. Pref. the transmitter is capable of transmitting the sensor and control signals in a simultaneous or time different manner. The receiver is capable to differentiate between the sensor and control signals. USE/ADVANTAGE - For alarms monitoring rooms or buildings, with reliable transmission of sensor signal and checking of functional efficiency of the sensor(s).