Abstract: An actuator device including two actuators associated with command circuits and monitoring circuits that are segregated. A control and monitoring card. Calculation means.

Abstract: A communication management component for organizing data exchanges between communicating devices of an Ethernet type network, the management component having interface means, distribution means adapted to acquire incoming data coming from each communicating device via interface means and to distribute it via the interface means to the other communicating devices, and processor means arranged to control the distribution means in such a manner that the incoming data coming from a sender device is distributed to the other devices, each communicating device in turn becoming the sender device in a first predefined sequence that is repeated cyclically.

Abstract: An actuator device including two actuators associated with command circuits and monitoring circuits that are segregated. A control and monitoring card. Calculation means.

Abstract: A method for verifying the integrity of data transmission between a main upstream unit (10a) and a main downstream unit (20a). The method includes the implementation of the following steps: a data-processing module (11a) of the main upstream unit (10a) generates a first frame (T1) including a packet (P1) of data to be transmitted and a cyclic redundancy code (E1) of the packet (P1); encapsulates the first frame (T1) in a second frame (T2) which also includes a cyclic redundancy code (C1) of the first frame (T1); encapsulates the cyclic redundancy code (E1) of the packet (P1) in a third frame (T3); the data-processing module (11b) of the at least one auxiliary upstream unit (10b) compares each of the cyclic redundancy codes (E1) extracted from the first frame (T1) with those extracted from the third frame (T3); and confirms the integrity of data transmission to the main downstream unit (20a) only if the comparison is positive.

Abstract: An electric motor device includes a rotor, a stator, and electrical means for driving rotation of the rotor relative to the stator, the device being characterized in that the stator includes a substantially spherical cavity receiving the rotor, which is itself substantially spherical, and in that the electrical means are arranged to drive the rotor in rotation about at least two axes.

Abstract: The invention relates to a fly-by-wire system which comprises: three-stage piloting control, each stage including a control computer suitable for determining the positions of the stick, and a monitoring computer capable of verifying all the pre-determined positions of the stick; three-stage control-surface position calculation, each stage including a control computer suitable for calculating the control-surface positions from encoded positions of the stick, and a monitoring computer capable of verifying all the calculated control-surface positions; a single unidirectional communication link connecting the control computer of the first piloting control stage to the control computer of the first control-surface position calculation stage; a single unidirectional communication link connecting the control computer of the second piloting control stage to the control computer of the second control-surface position calculation stage; and a single unidirectional communication link connecting the control computer of t

Abstract: The present invention relates to a method for verifying the integrity of data transmission between a main upstream unit (10a) and a main downstream unit (20a), the method being characterised in that it includes the implementation of the following steps: a data-processing module (11a) of the main upstream unit (10a) generates a first frame (T1) including a packet (P1) of data to be transmitted and a cyclic redundancy code (E1) of said packet (P1); encapsulating the first frame (T1) in a second frame (T2) which also includes a cyclic redundancy code (C1) of the first frame (T1); encapsulating the cyclic redundancy code (E1) of the packet (P1) in a third frame (T3); the data-processing module (11b) of the at least one auxiliary upstream unit (10b) compares each of the cyclic redundancy codes (E1) extracted from the first frame (T1) with those extracted from the third frame (T3); and confirming the integrity of data transmission to the main downstream unit (20a) only if the comparison is positive.

Abstract: The invention relates to a fly-by-wire system which comprises: three-stage piloting control, each stage including a control computer suitable for determining the positions of the stick, and a monitoring computer capable of verifying all the pre-determined positions of the stick; three-stage control-surface position calculation, each stage including a control computer suitable for calculating the control-surface positions from encoded positions of the stick, and a monitoring computer capable of verifying all the calculated control-surface positions; a single unidirectional communication link connecting the control computer of the first piloting control stage to the control computer of the first control-surface position calculation stage; a single unidirectional communication link connecting the control computer of the second piloting control stage to the control computer of the second control-surface position calculation stage; and a single unidirectional communication link connecting the control computer of t

Abstract: A communication management component for organizing data exchanges between communicating devices of an Ethernet type network, the management component having interface means, distribution means adapted to acquire incoming data coming from each communicating device via interface means and to distribute it via the interface means to the other communicating devices, and processor means arranged to control the distribution means in such a manner that the incoming data coming from a sender device is distributed to the other devices, each communicating device in turn becoming the sender device in a first predefined sequence that is repeated cyclically.

Abstract: The invention relates to a joystick (200) for controlling an aircraft, including a frame (201), a lever (202) mounted so as to be rotatably movable relative to the frame, and a mechanical linking assembly (203) for connecting the lever to the frame, the mechanical linking assembly (203) including: a first linking piece (213, 223) movably mounted relative to the frame (201) about a first rotation axis (X), a second linking piece (233, 243) movably mounted relative to the frame (201) about a second rotation axis (Y), the second rotation axis forming a non-zero angle with the first rotation axis, a third intermediate piece (255, 265) mounted so as to the rotatably movable relative to the first linking piece (213, 223) about a third rotation axis (Y?), a fourth intermediate piece (275, 285) mounted so as to be rotatably movable relative to the second linking piece (233, 243) about a fourth rotation axis (X?), the fourth rotation axis forming a non-zero angle with the third rotation axis, in which the linking piec

Abstract: The invention relates to a joystick (200) for controlling an aircraft, including a frame (201), a lever (202) mounted so as to be rotatably movable relative to the frame, and a mechanical linking assembly (203) for connecting the lever to the frame, the mechanical linking assembly (203) including: a first linking piece (213, 223) movably mounted relative to the frame (201) about a first rotation axis (X), a second linking piece (233, 243) movably mounted relative to the frame (201) about a second rotation axis (Y), the second rotation axis forming a non-zero angle with the first rotation axis, a third intermediate piece (255, 265) mounted so as to the rotatably movable relative to the first linking piece (213, 223) about a third rotation axis (Y?), a fourth intermediate piece (275, 285) mounted so as to be rotatably movable relative to the second linking piece (233, 243) about a fourth rotation axis (X?), the fourth rotation axis forming a non-zero angle with the third rotation axis, in which the linking piec

Abstract: An information display device has a first processor unit and a second processor unit that are connected to at least one information source. The first processor unit is also connected to a display and to the second processor unit. The first processor unit and the second processor unit each include a computer and a memory. The computer of the second unit is arranged to construct an image for displaying on the display and to transmit it to the computer of the first processor unit, which is arranged to modify the image by incorporating therein information from the information source, and to transmit the modified image to the display. An aircraft fitted with such a device is also provided.

Abstract: An information display device has a first processor unit and a second processor unit that are connected to at least one information source. The first processor unit is also connected to a display and to the second processor unit. The first processor unit and the second processor unit each include a computer and a memory. The computer of the second unit is arranged to construct an image for displaying on the display and to transmit it to the computer of the first processor unit, which is arranged to modify the image by incorporating therein information from the information source, and to transmit the modified image to the display. An aircraft fitted with such a device is also provided.