Accession Number : ADA301759

Title :   Batteryless Sensor for Intrusion Detection and Assessment of Threats.

Descriptive Note : Technical rept. 7 Jul 94-12 Feb 95,

Corporate Author : ANRO ENGINEERING INC LEXINGTON MA

Personal Author(s) : Ross, Gerald F. ; DeLorenzo, Joseph D. ; Kahn, Walter K. ; Cain, Lee R.

PDF Url : ADA301759

Report Date : 01 NOV 1995

Pagination or Media Count : 60

Abstract : This summary report describes the findings of a Phase I SBIR program to develop a batteryless and wireless sensor designed to monitor door and window openings/closings. The sensor radiates a coded signal to a central processor unit which identifies the location of the entry and can time code the event. The sensor works by converting the mechanical energy available by a door/window movement to a dc voltage which powers an imbedded tone modulated oscillator. The program concentrated on the development of the most efficient means to convert the available mechanical energy into electrical energy, as well as a means to effectively radiate the alerting signal. Four different energy conversion sources were developed. Two receivers were also designed and developed for use with the sensors. The sensors were located both in the jamb and door knob. Installation studies, as well as experiments. were conducted to determine the range of the sensor signal which can be up to one mile. The practical range depends on the sensor location. Based on the highly successful conclusion of Phase I, it was decided to submit a Phase II proposal in concert with an experienced sensor manufacturer to exploit the commercial aspects of this sensor.

Descriptors :   *THREAT EVALUATION, *MONITORS, *INTRUSION DETECTORS, *PERMANENT MAGNETS, *INTRUSION DETECTION, *MICROMINIATURIZATION, SOURCES, POSITION(LOCATION), DETECTORS, MANUFACTURING, LOW COSTS, THREATS, VOLTAGE, TIME, CODING, ENERGY CONVERSION, SIGNALS, INSTALLATION, RECEIVERS, ELECTRICITY, WINDOWS, CENTRAL PROCESSING UNITS, DIRECT CURRENT, DOORS, MECHANICAL ENERGY.

Subject Categories : Miscellaneous Detection and Detectors
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE