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Volume 5 • Issue 2 • 1000169 J Aeronaut Aerospace Eng ISSN: 2168-9792 JAAE, an open access journal Open Access Research Article Journal of Aeronautics & Aerospace Engineering J o u r n a l o f A e r o n a u ti c s & A e r o s p a c e E n g i n e e r i n g ISSN: 2168-9792 Wang et al., J Aeronaut Aerospace Eng 2016, 5:2 DOI: 10.4172/2168-9792.1000169 Keywords: Human spaceflight; China's space station; Ground operations system; Telescience Introduction China's space station will be launched at year 2018; this space station is China's largest space science experiment and application platform until now. It will stay in space orbit more than a decade and have many complex scientific space experimental tasks to do step by step in the future. is would mean that we are facing many challenges for our payload operation and application ground system, including complex mission planning, high-speed mass data processing, health management, payload status monitoring, remote support for tele- Science and the ground system dynamically updates with the scientific mission changes all the time. is paper mainly introduces the function composition of payload operation and application system of China’s space station, system architecture, hardware architecture and the new technology we use to implement the payload operation and application ground system of China's space station [1-4]. System Overall Design Components and design of the system Payload operation and application system is a very important sub system of the ground system of the China's space station. It responsible for establishing a communication link with the ground station, spacecraſt control center and science center, receiving telemetry data and various types of application data, real-time processing payload data and telemetry data to monitor the health status of the payload, planning and scheduling payload work timeline According to various scientific experiments request and spacecraſt resources, providing space station payload telescience support system for providing scientific experiments remote operation, remote scene and remote analysis; providing technical support for science education and international cooperation. Overall, it is a necessary infrastructure of the space station project [5,6]. Payload operation and application ground system is a typical information system, the function including front-end data communications, integrated monitoring and real-time data processing, planning and scheduling payload work plan, data simulation, health management and fault diagnosis for payload, supporting remote scientific experiments. System architecture design e soſtware architecture of the payload operation and application ground system is SOA (Service oriented architecture). All system functions are designed as service components to achieve soſtware functional reuse in the system. All system service components exchange information and data between various functional components through standardized interfaces by data distribution service bus. e feature of this system is reuse, scalability and flexibility. e payload operation and application ground system’s architecture showed as below, this architecture including four layers. ey are UI layer, integration layer, application layer and resource layer (Figure 1). System hardware architecture design Payload operation and application ground system is a typical information system, composed mainly by the computing systems, network devices, storage system, its high performance computing and mass storage devices are integrated together by virtual soſtware technology for sharing of resources and easy to manage (Figure 2). Seamless upgrade mechanism China space station construction process is gradually finish by building space capsule one by one for a long time, during this time, all payload scientific experiments are done step by step, which means that payload scientific experiments on the China space station are different and change all the time. Payload operation and application ground system needs to support new scientific experiments tasks by dynamically upgrade while the system working. So this system needs flexible system architecture to deal with this situation. System architecture design principles follow the norms modularity, encapsulation, loose coupling, and separation of concerns, reuse and composition (Figure 3). Payload operation and application ground system’s soſt architecture is SOA (service-oriented architecture) , is service- oriented architecture (SOA) is an architectural pattern in computer soſtware design in which application components provide services to other components via a communications protocol, typically over an *Corresponding author: Wang H, Key Laboratory of Space Utilization, Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, PR China, Tel: 86-10-68597521; E-mail: [email protected] Received May 11, 2016; Accepted June 09, 2016; Published June 12, 2016 Citation: Wang H, Guo L, Wu P (2016) Design and Realization of Payload Operation and Application System of China’s Space Station. J Aeronaut Aerospace Eng 5: 169. doi:10.4172/2168-9792.1000169 Copyright: © 2016 Wang H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract China's Space Station will be launched in the year 2018; this space station is China's largest space science experiment and application platform until now. This paper mainly introduces the function composition of payload operation and application system of China’s space station, system architecture, hardware architecture and the new technology we use to implement the payload operation and application ground system of China's space station. Design and Realization of Payload Operation and Application System of China’s Space Station Wang H*, Guo L and Wu P Key Laboratory of Space Utilization, Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, PR China
Transcript of & Aeros ournal of Aeronautics Aerospace Wang et al., J ...€¦ · Data Exchange service C ommu...
Volume 5 • Issue 2 • 1000169J Aeronaut Aerospace EngISSN: 2168-9792 JAAE, an open access journal
Open AccessResearch Article
Journal of Aeronautics & Aerospace EngineeringJo
urna
l of A
eron
autics & Aerospace Engineering
ISSN: 2168-9792
Wang et al., J Aeronaut Aerospace Eng 2016, 5:2 DOI: 10.4172/2168-9792.1000169
Keywords: Human spaceflight; China's space station; Groundoperations system; Telescience
IntroductionChina's space station will be launched at year 2018; this space
station is China's largest space science experiment and application platform until now. It will stay in space orbit more than a decade and have many complex scientific space experimental tasks to do step by step in the future. This would mean that we are facing many challenges for our payload operation and application ground system, including complex mission planning, high-speed mass data processing, health management, payload status monitoring, remote support for tele-Science and the ground system dynamically updates with the scientific mission changes all the time. This paper mainly introduces the function composition of payload operation and application system of China’s space station, system architecture, hardware architecture and the new technology we use to implement the payload operation and application ground system of China's space station [1-4].
System Overall DesignComponents and design of the system
Payload operation and application system is a very important sub system of the ground system of the China's space station. It responsible for establishing a communication link with the ground station, spacecraft control center and science center, receiving telemetry data and various types of application data, real-time processing payload data and telemetry data to monitor the health status of the payload, planning and scheduling payload work timeline According to various scientific experiments request and spacecraft resources, providing space station payload telescience support system for providing scientific experiments remote operation, remote scene and remote analysis; providing technical support for science education and international cooperation. Overall, it is a necessary infrastructure of the space station project [5,6]. Payload operation and application ground system is a typical information system, the function including front-end data communications, integrated monitoring and real-time data processing, planning and scheduling payload work plan, data simulation, health management and fault diagnosis for payload, supporting remote scientific experiments.
System architecture design
The software architecture of the payload operation and application ground system is SOA (Service oriented architecture). All system functions are designed as service components to achieve software
functional reuse in the system. All system service components exchange information and data between various functional components through standardized interfaces by data distribution service bus. The feature of this system is reuse, scalability and flexibility. The payload operation and application ground system’s architecture showed as below, this architecture including four layers. They are UI layer, integration layer, application layer and resource layer (Figure 1).
System hardware architecture design
Payload operation and application ground system is a typical information system, composed mainly by the computing systems, network devices, storage system, its high performance computing and mass storage devices are integrated together by virtual software technology for sharing of resources and easy to manage (Figure 2).
Seamless upgrade mechanism
China space station construction process is gradually finish by building space capsule one by one for a long time, during this time, all payload scientific experiments are done step by step, which means that payload scientific experiments on the China space station are different and change all the time.
Payload operation and application ground system needs to support new scientific experiments tasks by dynamically upgrade while the system working. So this system needs flexible system architecture to deal with this situation. System architecture design principles follow the norms modularity, encapsulation, loose coupling, and separation of concerns, reuse and composition (Figure 3).
Payload operation and application ground system’s soft architecture is SOA (service-oriented architecture) , This service-oriented architecture (SOA) is an architectural pattern in computer software design in which application components provide services to other components via a communications protocol, typically over an
*Corresponding author: Wang H, Key Laboratory of Space Utilization, Technologyand Engineering Center for Space Utilization, Chinese Academy of Sciences, PRChina, Tel: 86-10-68597521; E-mail: [email protected]
Received May 11, 2016; Accepted June 09, 2016; Published June 12, 2016
Citation: Wang H, Guo L, Wu P (2016) Design and Realization of PayloadOperation and Application System of China’s Space Station. J Aeronaut Aerospace Eng 5: 169. doi:10.4172/2168-9792.1000169
Copyright: © 2016 Wang H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
AbstractChina's Space Station will be launched in the year 2018; this space station is China's largest space science
experiment and application platform until now. This paper mainly introduces the function composition of payload operation and application system of China’s space station, system architecture, hardware architecture and the new technology we use to implement the payload operation and application ground system of China's space station.
Design and Realization of Payload Operation and Application System of China’s Space StationWang H*, Guo L and Wu PKey Laboratory of Space Utilization, Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, PR China
Citation: Wang H, Guo L, Wu P (2016) Design and Realization of Payload Operation and Application System of China’s Space Station. J Aeronaut Aerospace Eng 5: 169. doi:10.4172/2168-9792.1000169
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Volume 5 • Issue 2 • 1000169J Aeronaut Aerospace EngISSN: 2168-9792 JAAE, an open access journal
Parameter Display
Quick Look
User request DB HK&Science Data DB Payload Work Plan DB
Net Work and Storage Virtualization Managenment
Application Layer
Communication Front2
Data Exchange service
Communication Front1
Station Communication front
Resource Layer
Real-Time Data Bus(Rti DDS)&Enterprise Service Bus(ESB)
UI Layer
Real-Time Data Procressing Planning&Scheduling
Payload Monitoring Data Archiving& User Service
Orbit Dynamics system
TeleScience Support system
Data simulation &Training support
Fault diagnosis&Preocress
Integration Layer
Figure 1: Architecture of the syst em.Figure 1: Architecture of the system.
System Scheduling
Data receive
Space StationControl Center
Relay SatelliteControl center
Ground Station
安全网关防火墙
Realtime data Procressing
RealTime data Procressing
Payload Monitor
Planning&Scheduling
Fault diagnosis User’s service
Fibe
r-op
tic
netw
ork
1 U1 U1 UMagnetic
Tape storage
3 U3 U3 U3 U
RAID Storage Array
3 U3 U3 U3 U
RAID Storage Array
1 U
Storage Servers
Large-screen projection
system
Computer syswtemMeeting Rooms
Computer Control Center
Global cooperation roomPayload user’s room
Hall of POAC
Operation
management
network
Front Communication netWork
Data Storage System
Operation management system
Operation management place
Core Switches
FireWall
Tel-Science Support System
Figure 2: Design of the system hardware architecture.Figure 2: Design of the system hardware architecture.
Citation: Wang H, Guo L, Wu P (2016) Design and Realization of Payload Operation and Application System of China’s Space Station. J Aeronaut Aerospace Eng 5: 169. doi:10.4172/2168-9792.1000169
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enterprise service bus (ESB). The principles of service-orientation are independent of any vendor, product or technology. A service is a self-contained unit of functionality. SOA makes it easier for software
components on computers connected over an ESB to cooperate. Every computer can run any number of services, and each service is built in a way that ensures that the service can exchange information with any other service in the ESB without human interaction and without the need to make changes to the underlying program itself.
The System Data FlowFront-end data communication software send data to real-time
data processing software and integrated comprehensive monitoring software via the data bus DDS and then archive the raw data to the storage system to archive. Planning and scheduling software receiving user’s application request, checking the legality and then archive the user’ plan request files to the storage system via the File and data archive software. Planning and scheduling software planning and scheduling all the space and ground resources to support the payload work and make the payload work plan, then encoding work plan into instruction code and send this instruction code file to payload on orbit via the Beijing Space Flight Control Center uplink ground control stations or relay communication satellites uplink channel (Figure 4).
System Operating ModePayload operation and application ground system has four work
modes. They are Minimum system work mode (MSWM), Normal work mode (NWM) and Emergency work mode (EWM). When the software, computer system or network device of the payload operation and application ground system are failure, the MSWM mode required to start to make sure continued space science experiments mission not stopped. The NWM mode refers to the payload monitoring and
DevelopmentPlatform
Auto TestPlatform
AutoUpgrade
New function iterative development &deployment
iterative development &Test
New function iterative development &deployment
iterative development &Test
Space station cabin1, Spacecraft
AutoUpgrade
Space station cabin1, Spacecraft
AutoUpgrade
Space station special cabin
AutoUpgrade
Space station core cabin, Spacecraft
The minimum core system
Figure 3: Seamless upgrade process of the system.Figure 3: Seamless upgrade process of the system.
Simulation system
AI Analysis &Decision
Making
Planning and scheduling
File and data archive
Data Procress&M
ointor
Front-end communicati
onConfig DB
Config file
Data&File
plan
Data FileData production
Archive info
Task info DBData filePlan file
Config file
downlink
Config DB
Task ConfigPayload configCoding Config
uplink
Testdata
Historydata
Config DB
Display configHK Config
Rule config
Status AssessmentStatus predictionSimulation data
VR Training
User requestPlan file
Instruction
Config DB
System Scheduling
Instruction&Data code
Payload work plan
Raw data
Status Information 运控信息
data
TeleScience
Task ConfigPayload configCoding Config
Config DB Config DB
Figure 4: System data flow.Figure 4: System data flow.
Citation: Wang H, Guo L, Wu P (2016) Design and Realization of Payload Operation and Application System of China’s Space Station. J Aeronaut Aerospace Eng 5: 169. doi:10.4172/2168-9792.1000169
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management in accordance with the normal operation control flow and data processing flow to work. It is the most conventional and most comprehensive work mode of our ground system during the space station on orbit. The EWM mode is a special work mode of our system. It will start to work when the payload of the Space station will be broken or has broken. In this mode, we will deal with temporarily interrupted the normal operation control process (Including data processing and task Planning) by fault plan manual requirement to rescue the payload equipment.
Conclusion China's space station will be launched at year 2018; this space
station is China's largest space science experiment and application platform until now. It will stay in space orbit more than a decade and have many complex scientific space experimental tasks to do step by step in the future.
The system uses a lot of new information technology and has all
complete function of the payload ground support system. We hope this payload operation and application ground system of China's space station will support the payload application system to obtain significant scientific and technological achievements and improve the effectiveness of the payload work in the future.
References
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5. The Real-time publish-subscribe wire protocol, DDS Interoperability Wire Protocol Specification (DDS-RTPS).
6. Walton J (1993) Models for the management of satellite based sensors. Massachusetts Institute of Technology Massachusetts.
