Back to Search
Start Over
Shared control on lunar spacecraft teleoperation rendezvous operations with large time delay
- Source :
- Acta Astronautica. 137:312-319
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Teleoperation could be used in space on-orbit serving missions, such as object deorbits, spacecraft approaches, and automatic rendezvous and docking back-up systems. Teleoperation rendezvous and docking in lunar orbit may encounter bottlenecks for the inherent time delay in the communication link and the limited measurement accuracy of sensors. Moreover, human intervention is unsuitable in view of the partial communication coverage problem. To solve these problems, a shared control strategy for teleoperation rendezvous and docking is detailed. The control authority in lunar orbital maneuvers that involves two spacecraft as rendezvous and docking in the final phase was discussed in this paper. The predictive display model based on the relative dynamic equations is established to overcome the influence of the large time delay in communication link. We discuss and attempt to prove via consistent, ground-based simulations the relative merits of fully autonomous control mode (i.e., onboard computer-based), fully manual control (i.e., human-driven at the ground station) and shared control mode. The simulation experiments were conducted on the nine-degrees-of-freedom teleoperation rendezvous and docking simulation platform. Simulation results indicated that the shared control methods can overcome the influence of time delay effects. In addition, the docking success probability of shared control method was enhanced compared with automatic and manual modes.
- Subjects :
- Control mode
020301 aerospace & aeronautics
0209 industrial biotechnology
Engineering
Spacecraft
business.industry
Rendezvous
Aerospace Engineering
ComputerApplications_COMPUTERSINOTHERSYSTEMS
02 engineering and technology
Lunar orbit
020901 industrial engineering & automation
0203 mechanical engineering
Teleoperation
Predictive display
Orbital maneuver
business
Control methods
Simulation
Subjects
Details
- ISSN :
- 00945765
- Volume :
- 137
- Database :
- OpenAIRE
- Journal :
- Acta Astronautica
- Accession number :
- edsair.doi...........bdebf4755ba3c779625a978c011832fe