Abstract: An artificial intelligence system includes a generative LLM that receives prompts related to maintenance of a powered system. The generative LLM identifies one or more function tools for searching for information responsive to the prompt. The system also includes one or more discriminative LLMs trained on maintenance logbooks and technical manuals. The generative LLM selects from among the one or more discriminative LLMs to search for the information responsive to the prompts based on which of the function tools are identified. The discriminative LLMs that are selected obtain the information responsive to the prompts and to provide the information to the generative LLM. The generative LLM creates and presents responses to the prompt according to a pattern associated with the function tools that are identified and using the responsive information.

Abstract: A multi-agent LLM system includes multiple non-generative executive LLM agents trained on different sets of maintenance information, and a generative orchestration LLM agent coupled with the executive LLM agents. The orchestration LLM agent can receive a maintenance inquiry related to the powered system from personnel, and assign one or more of the executive LLM agents to examine the maintenance inquiry based on which of the different sets of the technical information that the executive LLM agents were trained. The executive LLM agents can examine the set of the technical information used to train the respective one or more of the executive LLM agents for relevant information to be output responsive to the maintenance inquiry and to provide the relevant information to the orchestration LLM agent. The orchestration LLM can present the relevant information from the executive LLM agents to the personnel for maintenance of the powered system.

Abstract: A multicast service processing method and access equipment are disclosed. The method includes: receiving multicast program request message from terminal device, inquiring about program rating parameters according to said multicast program request message, wherein the program rating parameter includes multicast group IP address and multicast program rated priority, generating multicast program data according to the program rating parameters, sending the multicast program data to the terminal device.

Abstract: Various embodiments of the present disclosure provide a method for implementing a Pay Per View (PPV) multicast service, including: sending, by a user terminal, a PPV program playing request to an access device; determining, by the access device, whether the user terminal has the right to receive the PPV program based on the current time and the acquired right information of the user terminal; if the user terminal has the right, forwarding the PPV program data stream from a multicast source to the user terminal. In accordance with the present disclosure, an access device may control the time of forwarding a program data stream to a user terminal according to the right of the user terminal of receiving the program, thus a PPV multicast service is implemented.