We have been investigating a method to accomplish critical operations efficiently and accurately for future spacecraft such as HTV. We are now developing a framework for maintaining operation flow diagrams and operation procedures based on the generation of source descriptions for operating procedures. This framework aims at not only reducing the time and effort required to develop such information, but also acquiring quality and consistency between the diagrams and the procedures. This paper describes the system used to configure the description built on the framework and the effectiveness of the method by applying the system to the spacecraft mission operations.

SUMMARYThis paper describes the automatic generation of system descriptions for SCADA (Supervisory Control And Data Acquisition) systems. The proposed method produces various types of data and programs for SCADA systems from equipment definitions using conversion rules. First, it makes directed graphs, which represent connections between the equipment, from equipment definitions. System descriptions are generated using the conversion rules, by analyzing these directed graphs, and finding groups of equipment that involve similar operations. This method can be used with various SCADA systems, and provides visual tools for editing conversion rules.

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In this paper, we describe a framework for maintaining operation flow diagrams and operation procedures based on the generation of source descriptions for operating procedures. This framework aims at not only reducing the time and effort required to develop such information, but also at acquiring quality and consistency between the diagrams and the procedures. This paper describes technical problems of previous methods on building operation products, our method to solve those problems, implementation and evaluation of the framework. The result of the evaluation shows that the method is especially effective for maintaining consistency between operation products. The framework is now being developed and applied to spacecraft mission operations.

Melco's earth station systems are operating on virtualization environment. Virtualization is technology to emulate the hardware platform and provides great advantages such as server consolidation, software isolation, and so forth. Furthermore, virtualization technology offers flexibility of installation, especially when the earth station system is reconfigured into the next stage of the satellite operation. Since this kind of reconfiguration happens repeatedly, this flexibility saves time and costs. This paper illustrates the advantages of applying virtualization technology to earth station systems based on our performance results in satellite house keeping and in-orbit testing terms. Acronym Melco= Mitsubishi Electric Corporation COTS = Commercial Off-The-Shelf OS = Operating System VM = Virtual Machine OR = Orbit Raising IOT = In-Orbit Testing HK = House Keeping HDD = Hard Disk Drive RAID = Redundant Array of Inexpensive Disks SSD = Solid State Drive NIC = Network Interface Card SMAC = Satellite Monitor and Control GMAC = Ground Monitor and Control ORAMS = Orbital Mission Analysis SOPS = Satellite Operation Planning and Scheduling SADA = Satellite Data Analysis TCT = Total Control Terminal TGW = Telesat Gateway SDP = Space Data Processing CCSDS = Consultative Committee for Space Data Systems