-1 (binding) Although I'm a little hesitant to base decisions on one user, the project that Michael notes in his signature (see below) would be a pretty cool design win for Jini/River, it would require the Java Real-Time system for obvious reasons, which is based on JDK1.5, and I'm unaware of any powerful technical need for JDK1.6 at this time. Also, as many have pointed out, many other commercial app servers that might be used as Jini clients are at JDK1.5 level.
Cheers, Greg. AF081- 028 ---------- Objective: Protype the exchange of a radar target report exchange between the GIG and FAA System Wide Information Management(SWIM)network from the radar detection to display at the FAA in less than 2.3 seconds Description: Develop a real-time net-centric concept for sharing radar data in a multi-level security environment between the Global Information Grid (GIG) and the Federal Aviation Administration (FAA) System Wide Information Management System (SWIM). Accurate, reliable, and timely radar and Airborne Dependent Surveillance - Broadcast (ADS_B) position data with very high integrity is critical to ensure aircraft collisions are prevented. Timeliness and accuracy will be even more important to maintaining safety in the FAA NextGen Air Transportation System being put in place. The NextGen is being designed to handle three times as much air traffic as today. Many more aircraft will be squeezed into the same airspace as today. This means that blunder detection and resolution loop times will be greatly reduced. Exchange of aircraft position data must be reliable, timely and accurate with very high integrity to ensure safety. This SBIR will strive to propose a way to guarantee that the position information can enter the GIG and be received by SWIM and processed for display with high confidence in less than 2.3 seconds from detection to display. The quality of Service of both networks must be defined to ensure that position data (radar and ADS-B) reliably reaches its destination with high integrity. Background: Information must be exchanged between aircraft, ground radars and ground ATM facilities to ensure safe and efficient operation of the aviation system. These same aircraft, radars and ATM facilities will be sending and receiving position and flight change information between the GIG to the SWIM network using internet protocol technology (IPV6). The GIG will be used to share real-time position information (including radar and ADS-B position data), issue and acknowledge controller instructions, update flight plans, provide threat information, etc. Critical flight information must pass both ways to ensure safety of flight and to allow military aircraft to fly through civil airspace to accomplish their missions. It is envisioned that control instructions and other information will be transmitted from the FAA ATM facility over SWIM to an appropriate gateway with the GIG then to the aircraft via data link and vice versa. The airborne transmission path can be direct to a SWIM gateway or via data link between the aircraft and military ground station directly or by using military satellites, thence from the GIG to the SWIM. Both GIG and SWIM are IP based and use XML, however they cannot be used for flight critical information until the appropriate quality of service for the information to be transferred is assured. This exchange is necessary to enable information to be shared across civil and military enterprises in the interest of air transportation safety and the expeditious coordinated movement of air traffic worldwide. The data to be exchanged varies from near real-time radar data in Asterix over IP with strict latency requirements, (0.3 sec for transmission and a total of 2.3 seconds from detection to display) to flight plan information that can tolerate much longer latencies. A priority system and a Quality of Service (QoS) scheme must be developed to insure that time critical information such as radar, ADS-B and control instructions are received without delay. The exchange of data using the GIG and SWIM has the potential to minimize the unique avionics necessary on board military aircraft to achieve access to civil airspace worldwide. -- Greg Trasuk, President StratusCom Manufacturing Systems Inc. - We use information technology to solve business problems on your plant floor. http://stratuscom.com
