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                            Library & Multimedia
 Unobtrusive Suicide Warning System, Final Technical Report, Phase III
NCJ Number
              243922

Author(s)
          Jeffrey M. Ashe;
                        Ghulam  Baloch;
                        Meena  Ganesh;
                        Catherine  Graichen;
                        Nicholas  Soldner;
                        Vijay  Lakamraju;
                        Joe  Zacchio;
                        Mark  Vogel
Date Published

September 2012
Length
              202 pages
Annotation
              This report describes the methodology and results of the third and final phase of a project that developed a prototype demonstration system that can measure an inmate's heart rate, breathing rate, and general body motion from a non-contact distance, so as to provide custodial facility staff with warning signs of a potential suicide attempt (hanging, asphyxiation) that warrants immediate intervention.
Abstract
              Phase III focused on hardening and integrating the system for long-term testing in an operational setting. Phase I addressed hardware modifications of a version of a commercialized Range Controlled Radar (RCR) that was originally designed as a motion detector for home security systems. Phase II conducted a field demonstration of the prototype system in an actual prison environment and continued the algorithm development in order to increase sensitivity and specificity. This was done to increase detections and reduce false alarms. Phase III involved pre-production engineering and implementation of the hardware and algorithms development in prior program phases and making the system tamper-proof and suicide-proof. The changes included modifying the RCR to match the earlier prototype system, identifying a data acquisition mechanism that could be packaged with the RCR, supplying a long-term power source, and installation in a prison-rated fixture. New software to collect the RCR signals and perform the state and alarm analyses was implemented on a central computer. The RCR sensor, the fundamental component of the system, is available at retail for approximately $50. Cost-effective adoption of the system will depend on assessment of the infrastructure installation costs, which may vary across Federal, State, and local facilities of differing construction. At the completion of this program, a long-term testing in real-world environments is needed to optimize the configurations, settings, and features of the system. 16 figures and appended final technical reports from phases I and II
      
  
          Additional Details
Grant Number(s)
        2011-IJ-CX-K003


  
  
        
  Agencies
        NIJ-Sponsored


  
  
        
  Publication Type
        Research (Applied/Empirical)
                                Report (Study/Research)
                                Report (Grant Sponsored)


  
  
        
  Award
        Unobtrusive Suicide Warning System
    
  
  
Date Published: September 1, 2012
    
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