Hardware Implementation of Petri Nets
Petri网的硬件实现

Petri net is an important tool to model asynchronous and concurrent phenomena. The hardware implementation of Petri net will provide an effective way to the design of parallel controller. In this paper, the hardware implementation method of several kinds of Petri net system is presented, including C/E system with inhibitor arcs and enabling arcs, P/T system and T-timed Petri net system, The dealing method of non-pure net in hardware implementation is also proposed. First the logic circuits to implement Petri net are discussed.Then the logic circuits are described with ABEL-HDL.Finally an example is given to implement Petri net with hardware(CPLD),which is a service system described by interpreted Petri net.Experimental results show thatthe correctness of this method.This method is of momentous significance to the design of DEDS controller,especially to the design of SoC paralle controller and multi-processors chip.