Abstract: A virtual hardware management device is provided, which includes a memory and a processing unit. The processing unit is configured for executing the multiple instructions to perform the following operations: when detecting that the load rate is more than the high level threshold, comparing respective priorities of multiple processing flows; selecting at least one of the multiple processing flows to perform at least one of analysis frequency reduction processing, detection reduction processing, or flow pause processing according to a comparing result until the load rate is not more than the high level threshold; and generating respective resource allocation ratio of multiple operators in the multiple processing flows according to respective resource weights of the multiple operators, and using a virtual hardware unit to execute the multiple operators according to the multiple resource allocation ratios.

Abstract: A security system is disclosed. The security system includes a memory and a processor. The memory is configured to store several applications, in which several applications include several relationships. The processor is coupled to the memory, in which the processor is configured to manage several applications according to several relationships and at least one of a time driven method and an event driven method, in which the several relationships include a parent-child relationship, a function-group relationship, and an app-type relationship, to receive several input signals from several sources, and to display a screen picture of the several input signals according to several drawing parameters, and when several applications are running, the processor is further configured to allocate several resources of the security system to several applications according to several weighting values.