NCJ Number
35095
Date Published
1976
Length
100 pages
Annotation
FINAL REPORT ON A PROGRAM TO ASSESS CURRENT EQUIPMENT AND SYSTEM DESIGN, IDENTIFY ANY REMAINING DESIGN PROBLEMS, AND DESCRIBE AN OPTIMIZED SYSTEM FOR THE ESTABLISHMENT OF A FIELD TEST PERSONAL DISTRESS SYSTEM.
Abstract
THE SYSTEM IS INTENDED TO PROVIDE RAPID EMERGENCY ASSISTANCE IN PUBLIC LOCATIONS WHEN CITIZENS ACTIVATE THE SYSTEM BY USING A MINIATURE PERSONAL ACTUATOR. THE SYSTEM RESPONDS BY DISPLAYING DATA ABOUT THE USER AND HIS LOCATION AT THE LOCAL POLICE STATION. HARDWARE AND SOFTWARE INVESTIGATIONS WERE PERFORMED TOWARD BASIC CHARACTERIZATION OF THE ACTUATOR AND PRIMARY RECEIVER RELAY (PRR). HARDWARE DESIGN AND FABRICATION EFFORT WAS CONCENTRATED IN THE AREA OF THE ACTUATOR ANTENNA AND MATCHING. FOR EACH COMPONENT, PROTO-TYPE HARDWARE WAS TESTED AND AVAILABLE DESIGN AND TEST DATA ANALYZED TO DETERMINE PERFORMANCE OF EXISTING DESIGNS AND MEANS OF IMPROVING PERFORMANCE TO ACHIEVE SYSTEM REQUIREMENTS. THE EVALUATORS CONCLUDED THAT THE EXISTING DESIGN WILL NOT PROVIDE THE REQUIRED SYSTEM PERFORMANCE AND HAS RECOMMENDED DESIGN CHANGES TO OPTIMIZE THE SYSTEM SIGNAL DESIGN; PRR RADIO FREQUENCY RECEIVER SENSITIVITY, ACTUATOR EFFECTIVE RADIATING POWER AND MESSAGE STRUCTURE, AND CENTRAL STATION COMPUTER PERFORMANCE TO ACCOMODATE THE THROUGHOUT AND CAPACITY REQUIRED FOR FIELD EVALUATION. (AUTHOR ABSTRACT MODIFIED)