Design of interface software for a distributed system with mixed varied intelligent meters

Main problems of the common Communication Interface Software (CIS) for an industry-control network based on RS485 bus are poor openness, flexibility and stability, so some functions of intelligent meters are limited. A new CIS was designed by the folio-wing ways: the RS485 serial communication process was composed of physical and application layers; the interface initializing process related to communication at physical layer was described by normalized communication module; the common parts of order message creation and responsive message transmission were described by a data structure and the special parts of them were described by text files respectively; configuration software was used to interpret these descriptions. The software has characteristics of broad generalization and operational facilitation, and can run on Windows completely. The results in application cases show that the software is effective and feasible'

Methods and Apparatus for Aggregation of Multiple Pulse Code Modulation Channels into a Signal Time Division Multiplexing Stream

Methods and apparatus are provided for telemetry processing using a telemetry processor. The telemetry processor can include a plurality of communications interfaces, a computer processor, and data storage. The telemetry processor can buffer sensor data by: receiving a frame of sensor data using a first communications interface and clock data using a second communications interface, receiving an end of frame signal using a third communications interface, and storing the received frame of sensor data in the data storage. After buffering the sensor data, the telemetry processor can generate an encapsulated data packet including a single encapsulated data packet header, the buffered sensor data, and identifiers identifying telemetry devices that provided the sensor data. A format of the encapsulated data packet can comply with a Consultative Committee for Space Data Systems (CCSDS) standard. The telemetry processor can send the encapsulated data packet using a fourth and a fifth communications interfaces