A system receives a transport stream containing video data and audio data. In order to check a communication message, a feature obtained from the content of the communication message is compared to a feature that corresponds to said feature, the corresponding feature being obtained by a sensory system that is independent of the vehicle-to-environment communication. The signal light entered through the input end is first amplified by the Er-doped optical waveguide, and thereafter is amplified by the Tm-doped optical waveguide. Under operating conditions, a dense electrolyte and metal oxide sub-layer exist on the oxidized side ; while the other side of the electrolyte is made of a porous sub-layer containing transition metal. An application server identify suspicious threads that may cause the threads to hang or to execute for a long period of time and transfers the suspicious threads to a thread quarantine manager, where the suspicious threads are bundled together with other threads that have been identified to be hung or to be executed for a long period of time.