Title :
How to reliably integrate medical devices over wireless
Author :
Kim, Cheolgi ; Sun, Mu ; Rahmaniheris, Maryam ; Sha, Lui
Author_Institution :
Sch. of EECS, Korea Aerosp. Univ., Goyang, South Korea
Abstract :
This demonstration presents our NASS (Network Aware Supervisory System) framework prototype for medical device integration systems. The NASS framework interconnects medical devices over wireless for convenience, seamlessness and sanitation, and provides safety-guaranteed supervision. Our prototype was developed in Sun Java Real-time Environment. Real-time Java provides well-formed convenience of dynamically loading and unloading medical application logic and safety rules on the fly in real-time environments. To tackle the complexity of using real-time Java in the safety-critical system, we also applied HW/SW codesign method. Real-time Java Environment + Linux operating system may not be robust enough for medical devices to fully rely on. In our prototype, the supervisor software in Java performs all logical decisions including contingency plan generation derived from the safety rules. Once logic is decided, the decisions and plans for the devices are delivered to the hardware implemented in FPGA at each device to physically drive medical equipments. Since the execution of decisions and plans are delegated to the hardware, any failure in software does not harm the integrated safety. Our demonstration shows how safety is managed in different kinds of failures from wireless network failures to device software failures.
Keywords :
Java; Linux; biomedical equipment; field programmable gate arrays; hardware-software codesign; medical computing; radio networks; real-time systems; safety-critical software; supervisory programs; FPGA; HW-SW codesign method; Linux operating system; NASS framework prototype; contingency plan generation; device software failures; dynamic loading; hardware implementation; integrated safety; logical decisions; medical device integration systems; network aware supervisory system; physically drive medical equipments; real-time Java environment; real-time environments; safety-critical system; safety-guaranteed supervision; sanitation; sun Java real-time environment; supervisor software; wireless network failures; Biomedical equipment; Engines; Java; Protocols; Prototypes; Safety; Software;
Conference_Titel :
Sensor, Mesh and Ad Hoc Communications and Networks (SECON), 2012 9th Annual IEEE Communications Society Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-1904-1
Electronic_ISBN :
2155-5486
DOI :
10.1109/SECON.2012.6276355