1. AVOIDANCE OF SYSTEM DEADLOCKS IN REAL TIME CONTROL OF FLEXIBLE MANUFACTURING SYSTEMSBy
Richard A. Wysk

2. PRESENTATION OUTLINE
1. Introduction to System Deadlock
2. The Detection System
3. The Control System
4. Permanent Blocking
5. Simulation Results
6. Conclusions

3. DIRECT ADDRESS TYPE OF SYSTEMS

4. SOME BASIC PATTERNS OF SYSTEM DEADLOCKS

5. THE EFFECT OF A SYSTEM DEADLOCK

6. WAIT RELATION
If a part P is currently at machining resource, Ri, and its next destination is machine Rj. This situation is referred to as a wait relation.

7. RESOLUTION ALTERNATIVES

9. THE DETECTION SYSTEM

10. THE DETECTION SYSTEM

11. STRING MULTIPLICATION

17. INTERACTION BETWEEN CLOSED CIRCUITS

19. THIRD LEVEL CLOSED CIRCUITS

20. Machine Utilization of the Three Control Methods