Data processing system for exterior intrusion detection sensor evaluation and development

A data processing system has been developed to analyze data collected at the Sandia Laboratories exterior intrusion detection test facility for evaluation of sensors and the development and testing of alarm processing and signal processing algorithms. This data system will aid in alarm processing, which attempts to compensate for sensitivities or shortcomings of sensors used in an intrusion detection system, and signal processing, which attempts to discriminate between intruders and other sources of excitation. Analog and alarm data from the sensors and meteorological data are collected by a minicomputer-controlled data acquisition system. The data are stored in three data bases to facilitate later processing and analysis. For example, alarm rates as functions of meteorological conditions can be determined, the range of weather conditions experienced by the sensors can be presented, and analog signals from sensors can be plotted. The evaluation of sensors includes the determination of sensitivity to environmental conditions. Examples of the capabilities of the system are presented