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Mobile Servicing System
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Mobile Servicing System
The Mobile Servicing System (MSS) is a robotic system on board the International Space Station (ISS). Launched to the ISS in 2001, it plays a key role in station assembly and maintenance; it moves equipment and supplies around the station, supports astronauts working in space, services instruments and other payloads attached to the ISS, and is used for external maintenance. Astronauts receive specialized training to perform these functions with the various systems of the MSS.
The MSS is composed of three components:
The system can move along rails on the Integrated Truss Structure on top of the US-provided Mobile Transporter cart, which hosts the MRS Base System. The system's control software was written in the Ada 95 programming language.
The MSS was designed and manufactured by MDA (previously divisions of MacDonald Dettwiler Associates called MDA Space Missions, MD Robotics, and previously called SPAR Aerospace) for the Canadian Space Agency's contribution to the International Space Station.
Officially known as the Space Station Remote Manipulator System (SSRMS), Canadarm2 was launched on STS-100 in April 2001. This second generation arm is a larger, more advanced version of the Space Shuttle's original Canadarm. Canadarm2 is 17.6 m (58 ft) when fully extended and has seven motorized joints (an 'elbow' hinge in the middle, and three rotary joints at each of the 'wrist/shoulder' ends). It has a mass of 1,800 kg (4,000 lb), a diameter of 35 cm (14 in), and is made from titanium. The arm can handle large payloads of up to 116,000 kg (256,000 lb) and could assist with docking the space shuttle. It is self-relocatable and can move end-over-end to reach many parts of the Space Station in an inchworm-like movement. In this movement, it is limited only by the number of Power Data Grapple Fixtures (PDGFs) on the station. PDGFs located around the station provide power, data and video to the arm through either of its two Latching End Effectors (LEEs). The arm can also travel the entire length of the space station truss using the Mobile Base System.
In addition to moving itself around the station, the arm can move any object with a grapple fixture. In construction of the station the arm was used to move large segments into place. It can also capture unpiloted ships like the SpaceX Dragon, the Cygnus spacecraft, and Japanese H-II Transfer Vehicle (HTV), which are equipped with a standard grapple fixture that the Canadarm2 uses to capture and berth the spacecraft. The arm is also used to unberth and release the spacecraft after use.
On-board operators see what they are doing by looking at the three Robotic Work Station (RWS) LCD screens. The MSS has two RWS units: one in the Destiny module and the other in the Cupola. Only one RWS controls the MSS at a time. The RWS has two sets of control joysticks: one Rotational Hand Controller (RHC) and one Translational Hand Controller (THC). In addition to this is the Display and Control Panel (DCP) and the Portable Computer System (PCS) laptop.
In recent years,[when?] the majority of robotic operations are commanded remotely by flight controllers at Christopher C. Kraft Jr. Mission Control Center or the Canadian Space Agency's John H. Chapman Space Centre. Operators can work in shifts to accomplish objectives with more flexibility than when done by on-board crew operators, albeit at a slower pace. Astronaut operators are used for time-critical operations such as visiting vehicle captures and robotics-supported extra-vehicular activity.
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Mobile Servicing System AI simulator
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Mobile Servicing System
The Mobile Servicing System (MSS) is a robotic system on board the International Space Station (ISS). Launched to the ISS in 2001, it plays a key role in station assembly and maintenance; it moves equipment and supplies around the station, supports astronauts working in space, services instruments and other payloads attached to the ISS, and is used for external maintenance. Astronauts receive specialized training to perform these functions with the various systems of the MSS.
The MSS is composed of three components:
The system can move along rails on the Integrated Truss Structure on top of the US-provided Mobile Transporter cart, which hosts the MRS Base System. The system's control software was written in the Ada 95 programming language.
The MSS was designed and manufactured by MDA (previously divisions of MacDonald Dettwiler Associates called MDA Space Missions, MD Robotics, and previously called SPAR Aerospace) for the Canadian Space Agency's contribution to the International Space Station.
Officially known as the Space Station Remote Manipulator System (SSRMS), Canadarm2 was launched on STS-100 in April 2001. This second generation arm is a larger, more advanced version of the Space Shuttle's original Canadarm. Canadarm2 is 17.6 m (58 ft) when fully extended and has seven motorized joints (an 'elbow' hinge in the middle, and three rotary joints at each of the 'wrist/shoulder' ends). It has a mass of 1,800 kg (4,000 lb), a diameter of 35 cm (14 in), and is made from titanium. The arm can handle large payloads of up to 116,000 kg (256,000 lb) and could assist with docking the space shuttle. It is self-relocatable and can move end-over-end to reach many parts of the Space Station in an inchworm-like movement. In this movement, it is limited only by the number of Power Data Grapple Fixtures (PDGFs) on the station. PDGFs located around the station provide power, data and video to the arm through either of its two Latching End Effectors (LEEs). The arm can also travel the entire length of the space station truss using the Mobile Base System.
In addition to moving itself around the station, the arm can move any object with a grapple fixture. In construction of the station the arm was used to move large segments into place. It can also capture unpiloted ships like the SpaceX Dragon, the Cygnus spacecraft, and Japanese H-II Transfer Vehicle (HTV), which are equipped with a standard grapple fixture that the Canadarm2 uses to capture and berth the spacecraft. The arm is also used to unberth and release the spacecraft after use.
On-board operators see what they are doing by looking at the three Robotic Work Station (RWS) LCD screens. The MSS has two RWS units: one in the Destiny module and the other in the Cupola. Only one RWS controls the MSS at a time. The RWS has two sets of control joysticks: one Rotational Hand Controller (RHC) and one Translational Hand Controller (THC). In addition to this is the Display and Control Panel (DCP) and the Portable Computer System (PCS) laptop.
In recent years,[when?] the majority of robotic operations are commanded remotely by flight controllers at Christopher C. Kraft Jr. Mission Control Center or the Canadian Space Agency's John H. Chapman Space Centre. Operators can work in shifts to accomplish objectives with more flexibility than when done by on-board crew operators, albeit at a slower pace. Astronaut operators are used for time-critical operations such as visiting vehicle captures and robotics-supported extra-vehicular activity.
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