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Safety Model of On-line Electronic Instrument Based on Embedded System

The safety model of electronics instrument and circuit control over Internet or local network is built in this paper. In industrial area, to keep instrument and circuit in safety is very important. Safety problem is discussed in detail as the base of safety problem description. The safety problem is summarized as denying dangerous operation of executing rules of control commands. A model for the commands executing relation and sequence is built in this paper. To build the model, the executing conditions for each command should be established at first. Based on the executing conditions the relation of different commands could be built. The safety model can be used for the operation safety checking. This model and safety problem description method also can be used for electronic instrument and circuit with embedded architecture