According to the myth nothing could escape the sharp eye of Argus.
Argus II creates an optimal or near optimal radar surveillance
pattern in both space and time and aid the allocation of radar
stations. The user can formulate the surveillance problem and study
the result trough an advanced graphical user interface. The goal is to
create a surveillance pattern that changes over time in hard a
predictable manner.
A radar station can be switched on or off in a particular sector. For each radar station and each sector the switching pattern should be irregular and hard predictable. The average number of radar stations covering a particular area can vary in accordance with it's strategic importance. The irregularities of the pattern for each radar sector should be accomplished without violating security constraints. An example of a constraint could be that at least three radar stations will observe or cover a particular area at least every fourth second. If all of the surveillance cover constraints are fulfilled, so there is no under cover and the over cover is minimal then the surveillance pattern is optimal.
The Argus II system utilizes pseudo Boolean constraints in combination with finite domain constraints including reified constraints. Experimental results have shown that the pseudo Boolean constraint solver built on the Wsat(PB) algorithm is considerably more efficient then other solvers. This is particularly true for large realistic problems.
Argus II is developed at SICS in co-operation with Celsius Tech. Wsat(PB)
and the associated solver is developed by Joachim Walser at DFKI.
Some additional information about Argus may be found here.
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SICS, Box 1263, S-16429 Kista, Sweden phone: +46 8 633 1500, fax: +46 8 751 72 30 mail: info@sics.se |