Integrated Call-Bell System

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Integrated Call-Bell System
Problem
Redundant visits
Prolonged call returns
Patient requests are not widely accessible
Opportunity
Current systems operate separately, not as one
Current systems do not solve the problem
Significance
Impact on healthcare
Communication between patient and nurses
Contextual info for HCI
Increase patient satisfaction
Existing solution
Flashing lamp call system
Pager system
Does not eliminate unnecessary visits
does not increase care efficiency
Mobile phones
Proposed solution: Nurse wireless location system
Nurse Call System Software (NCSS)
Handle Calls from nurse call hardware
Sends ALERT to WPSS
Location System Software (LSS)
Detect nurses' location change
Wireless Phone System (WPSS)
Rings primary nurse wireless phone upon receiving ALERT from NCSS
Establish audio path with patient and nurse
VoIP
Easily scalable
Reduced cost from phone calls
Evaluation
No delay time in deciding secondary nurse
Successfully detects nurse location and availability
VoIP delays in milliseconds
Call latency
Sum of a sequence of delays
Patient receive response time at most 13s worst case from nurse
Limitations
Conforming to XML messages between all systems
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