|
Method for determining failures of gyroscopic metre of vector of angular speed of space vehicle, and device for its implementation |
|
|
IPC classes for russian patent Method for determining failures of gyroscopic metre of vector of angular speed of space vehicle, and device for its implementation (RU 2495379):
Device to select astronomic objects of surveillance from orbital spacecraft / 2495378
Device to select astronomic objects of surveillance from an orbital spacecraft (SC), includes a globe with an applied sky map, two rings covering the globe, centres of which are matched with the centre of the globe, an element with a circular contour, the projection of which to the surface of the globe forms a circumference that limits the segment of the globe surface with an angle of semi-opening counted from the direction from the centre of the globe to the centre of the specified segment of the globe surface, equal to the angle of semi-opening of a disc visible from the SC in the planet located in the centre of the near-circular orbit of the SC, and an arc element connected with the specified element with the circular contour. The first ring is fixed above points of globe poles with the possibility to rotate a ring around the axis of globe rotation. The second ring is fixed on the first ring. The plane of the second ring makes an angle with the plane of the globe equator equal to the angle of SC orbit inclination. In addition the size of the arc element arc measured from the centre of the globe is equal to 180°-Q, where Q - angle of semi-opening of the planet disc visible from the SC orbit. The arc element with its end point is rigidly connected with the edge of the element with the circular contour. The arc element and element with the circular contour are made as detachable and equipped with a facility of their fixation on the globe in positions, in which the free end point of the arc element and the centre of the element with circular contour are at the same diameter of the globe.
Device for selecting astronomical objects for observation from orbital spacecraft / 2488077
Invention relates space engineering. Proposed device comprises celestial globe with starry sky plotted thereon, two rings covering said globe with their centres aligned with that of the globe, and circular element, its projection on globe surface making a circle confining globe surface circular segment with angle of semi-span graduated from globe centre to that of said segment and equal to angle of semi-span of disc planet located at the centre of visible from spacecraft nearly circular orbit and visible from spacecraft. First ring is secured above globe pole points to allow revolution of said first ring about globe rotation axis. Second ring is secured to first ring. Second ring plane makes with globe equator plane the angle equal to that of spacecraft orbit inclination. Besides, guide pin is added to proposed device to envelop the globe, its centre being aligned with globe centre, and fitted along ecliptic line marked on globe surface, as well as means to fix the position of circular element with circular contour relative to circular guide pin.
Board for selecting observation objects from orbital spacecraft / 2482451
Invention can be used to determine and select observation objects onboard an orbital spacecraft moving on a near-circular orbit. The board for selecting observation objects from an orbital spacecraft has a flexible tape with a map of the earth's surface, a semitransparent plate placed over said tape having an image of half the orbit pass of the spacecraft between ascending and descending nodes, and a device for moving the tape along the plate with two rollers spaced apart and mounted parallel to each other. The tape is stretched onto the rollers with possibility of movement thereof along the equator line. The map of the earth's surface is divided into two parts on the equator line. Part of the map with the image of the northern hemisphere and part of the map with the image of the southern hemisphere are arranged in series on the tape. The equator line of the part of the map with the image of the northern hemisphere is a continuation of the equator line of the part of the map with the image of the southern hemisphere. The device for moving the tape along the plate has processor rollers placed in parallel between the first and second rollers. The tape is stretched onto said rollers and the newly introduced process rollers. The size of the tape and the plates along the direction perpendicular to the equator is equal to the length of the latitude line of the map showing one of the hemispheres.
Method for ephemeral provisioning of process for controlling global navigation satellite system spacecraft / 2477836
Invention can be used for ephemeral provisioning of a process for controlling global navigation satellite system (GNSS) spacecraft. A low-orbiting spacecraft fitted with apparatus for synchronising the on-board time scale with the system time scale, apparatus for determining orbit parameters from ground-based radio beacons and consumer navigation equipment is taken to an orbit. During orbit flight thereof, the on-board time scale is synchronised with the system time scale of the GNSS; orbit parameters are determined from radio beacon signals; a GNSS spacecraft navigation message signal is received; Doppler frequency shift of the message signal is measured. Orbit parameters of the low-orbiting spacecraft and the measured values of the Doppler frequency shift of the message signal on-board the low-orbiting spacecraft are used to determine the orbit of navigation GNSS spacecraft and then transmitted for reception thereof at the GNSS spacecraft.
Method of monitoring continuity of navigation field of global navigation satellite system / 2477835
Invention can be used for rapid monitoring of continuity of the navigation field of the global navigation satellite system (GNSS). Continuity if monitored on a low-orbiting spacecraft fitted with consumer navigation apparatus. During orbital flight, navigation messages of visible GNSS spacecraft are continuously received; navigational sighting is carried out; some of the received navigation messages are used and several sets of consumer coordinates are obtained. By processing redundant navigation information, the quality of navigation signals of all visible GNSS spacecraft are analysed. Upon detection of malfunction of a certain GNSS spacecraft, a fault feature is rapidly generated and transmitted, which is received in on-board control systems of the GNSS spacecraft and the fault feature is entered into the system log.
Device to select objects of surveillance from orbital spacecraft / 2471150
Device comprises a globe with a planet surface map applied on it, a spiral element that models an orbit of a spacecraft (SC), a facility to lock the spiral element on the axis of globe rotation. The spiral element is arranged in the form of an orbit turn with a positive incline of the SC. The start of the orbit turn shall be a point of the orbit located beyond the quarter of the SC circulation period to the ascending unit of the orbit. The end of the orbit turn shall be a point of the orbit that is distant by the quarter of the SC circulation period after the next ascending unit of the orbit. The facility for fixation of the spiral element on the axis of globe rotation is arranged in the form of two connection elements, the angular size of every of which, measured from the centre of the globe, is equal to 90°-i, where i - orbit inclination.
Angle measurement device / 2470258
Angle measurement device comprises a lens hood, a channel of a non-detuned geometric reference in the form of a lighting unit, a unit of a beam divider, a flat mirror installed on a basic plane and a non-detuned mirror-prism unit, a lens, a photodetector and a computing unit. The beam divider unit - an optical element glued from a lens and mirror-lens system, in the area of gluing producing an inclined beam-dividing face, in which: the first input surface is arranged in the lens system and is arranged as flat with a dot diaphragm applied on it; the second output surface is arranged in the mirror-lens system is arranged as flat with an adhered plano-convex lens with a mirror spherical surface, at the same time the second surface is input for radiation reflected with the mirror spherical surface; the third output surface is arranged in the mirror-lens system, is arranged in the form of a concave spherical surface, the front focus point of which is matched with the image of the dot diaphragm from the mirror spherical surface, at the same time the third surface is also an input surface for radiation reflected with a flat mirror; the fourth output surface in the lens system is a convex spherical surface. For radiation reflected with a flat mirror, the third and fourth surfaces operate as a telescopic system with angular magnitude of 0.5x.
Board for selecting observation objects from orbital spacecraft / 2469274
Board for selecting a ground surveillance object from an orbital spacecraft refers to space engineering. The board for selecting ground surveillance objects from an orbital spacecraft has a flexible belt with a map of the surface of the plane, a semitransparent plate placed on top and a device for enabling movement of the belt with the map along the semitransparent plate from two shafts spaced apart and mounted parallel each other. The semitransparent plate consists of two parts. One edge of the first part of the semitransparent plate is curvilinear and has the shape of the curved line of the orbit of the spacecraft between ascending and descending nodes and the other edge is directed along the equator line of the map. One edge of the second part of the semitransparent plate is curvilinear and has the shape of the curved line of the orbit of the spacecraft between ascending and descending nodes and the other edge is directed along the latitude line of the map. Both parts of the semitransparent plate are mounted with superposition of the outermost points of the curvilinear edge of one part of the semitransparent plate with the outermost points of the curvilinear edge of the other part of the semitransparent plate and with possibility of each part of the semitransparent plate turning about an axis directed along the equator line of the map.
Angle measurement device / 2469266
Device comprises a lens, a matrix photodetector device (PDD), a calculation unit and a channel of a geometric reference in the form of a lighting unit, a collimator unit and a mirror-prism unit that introduces radiation from the lighting unit into the lens. The lighting unit is arranged in the form of three sources of light installed in front of input diaphragms and arranged at the angle of 120° to each other. The collimator unit is arranged in the form of three input and three output point diaphragms arranged on the rear face of the mirror-prism unit, which faces the lens, outside its inlet pupil, and is rigidly connected to the support surface of the device. The mirror-prism unit is a single monoblock in the form of parallel smaller front and larger rear hexagonal faces, adjacent ribs of which are arranged at the angle of 120° to each other and form six side mirror faces. The front face is arranged as capable of reflecting rays developed by a lighting unit and input holes of the collimator unit. The lens on the sensitive site of the PDD generates dot element images of the geometric reference channel, and additionally dot element images received from beams reflected by the front face of the mirror-prism unit.
Weapon orientation method / 2466343
Measuring device and calculation and indication unit are installed on the weapon. Measurement of the measuring device data, calculation of current values of azimuth angle and elevation angle of weapon in the calculation and indication unit, indication of values of azimuth angle and elevation angle and turning of weapon to the required values of guidance angles as to azimuth and elevation is performed. Measuring device is represented with two-antenna satellite navigation system installed on the weapon parallel to weapon axis of sight with guidance of antennae to upper hemisphere. Measurement of coordinates of antenna location is performed with frequency of not less than 1 Hz. Calculation in calculation and indication unit is carried out as per measured antenna location coordinates.
Sun angular coordinate indicator / 2244263
Device has optical spectrum filter, slit mask, multi-element photo-sensitive detector, threshold elements, photo-detector register, counter, output register, clock pulse generator. Multi-element photo-sensitive detector consists of elementary photo-detectors placed behind one another along quadratic curve. Normal lines to sensitive areas of each elementary photo-detector and quadratic curve lie in same plane.
Method of orientation of spacecraft / 2247945
Proposed method includes measurement of angles of position of optical axes of astro-visual units tracking the stars relative to body-axis coordinate system. For determination of orientation of mobile object, use is made of coordinates of its center of mass in geocentric coordinate system which are determined by means of high-precision global navigation satellite system.
Method for determining angles of orientation of moving object and device for realization of method / 2273826
Satellite navigation equipment and three gyro-integrators simultaneously determine values of projections of speed vector in starting and connected coordinates system respectively and transfer determined values to onboard digital computing machine, which, using received information, determines values of angles of orientation of moving object in space in accordance to algorithm for determining orientation of moving object.
Method of determining initial position of inertia block with respect to base coordinate system / 2279635
Method comprises autonomous determination of the position of the instrument with respect to the horizontal plane coordinate system from the signals from the accelerometers and vector conforming of the coordinate systems for determining the position of the instrument coordinate system in azimuth.
Method of spatial orientation and stabilization / 2282154
Method comprises determining the vector of velocity of the object in a Cartesian coordinate system, determining integral characteristics of the variation of the velocity vector as a function of the direction of motion of the object in the space, and stabilizing the trajectory of motion of the movable object on the basis of the estimations depending on the direction chosen from the stars sky.
Device for determining vertical of spacecraft location / 2282155
Device comprises two spheres mounted with a spaced relation one to the other. The outer sphere is made of a superconducting material, and the inner sphere is made of a magnetic material. The outer sphere is secured to the spacecraft, and the inner sphere is shifted with respect to the center of gravity and has the radiation source. The output of the radiation receiving unit is connected with the information input of the recording unit whose control input is connected with the output of the board control unit.
Method of autonomous measurement of angular speed vector / 2282826
Method can be used in moving objects' spatial orientation systems. Before beginning of movement of object, the coordinate system is chosen being comfortable for observer. Three stars are selected, along directions of which stars the speeds have to be measured and their angular coordinates are measured. After movement starts, current values of linear velocity are measured on the base of directions of navigating stars. Changes in linear velocity are calculated from directions of navigating stars, which are changes are caused by rotation of object, and basic components of angular speed vector are determined from directions of navigating stars.
Sun attitude pickup / 2308005
The Sun attitude pickup has an optical system made in the form of a wide-angle lens including an inlet and outlet plano-convex lenses with a diaphragm placed between them, an optical element is positioned in its holes, matrix photodetector, and a unit for processing of information and computation of coordinates. The refractive indices of the optical components are selected proceeding from the relation: n1≥n2<n3, where n1 - the refractive index of the inlet plano-convex lens; n2 - the refractive index of the optical element; n3 - the refractive index of the outlet plano-convex lens.
Method for autonomous navigation and orientation of spacecrafts / 2318188
Method for autonomous navigation and orientation of spacecrafts includes computer calculation of position in three-dimensional space of ort of radius-vector of support (calculated, a priori assumed) orbit, rigid attachment of optical-electronic device on the body of spacecraft and measurement of coordinates and brightness of stars, which are in the field of view during navigational sessions, in it.
Coherent transponder of phase synchronization / 2319931
Coherent transponder of phase synchronization has a radio receiving set, a radio transmitting set, an airborne standard of frequency (H-maser) and also a logic and commutation block. The radio transmitting so as the radio receiving set consists of two half-sets. The radio receiving set has a radio receiver module of the amplifier of a very high frequency, a preliminary amplifier of intermediate frequencies, a block of phase automatic adjustment of the frequency, the amplifier of the reference signal 2▾ and the secondary source of feeding.▾- nominal frequency. The coherent transponder of the phase synchronization provides transformation of the input signal in diapason 961▾ into an answer signal in the diapason 1120▾ used for synchronization of the airborne thermostating controlled generator. For reducing the drift of the phase of the answer signal the system of transformations of frequencies is built on the principle of complete matching of tracts of multiplying of the radio transmitting set and the heterodynes of the radio receiving set.
|
FIELD: measurement equipment. SUBSTANCE: according to the proposed method, five threshold signals, signals of norms of gyroquaternions, signals of norms of bases, and a signal of norm of astroquaternion; speeds of change of output signals of each gyroscope are determined, and when they exceed the first threshold signal, the second failure signal is shaped; signals of differences of signals of gyroquaternions of bases are determined, and when they exceed the second threshold signal, the third failure signal is shaped. After at least one failure signal is received, difference signal is determined between signal of norm of gyroquaternion of working basis and signal of norm of astroquaternion, and when it exceeds the third threshold signal, L fourth failure signal is shaped; occasionally, at the time interval equal to five minutes there determined are difference signals of signals of gyroquaternions of signals and bases and signal of astroquaternion, and when it exceeds the fourth threshold signal, the fifth failure signal is shaped; occasionally, within four seconds, after the third failure signal is received, a control loop of a space vehicle is opened, a test signal is supplied to the actuating device input, output signals of gyroscopes are measured, and when they exceed the fifth threshold signal, the sixth failure signal is shaped. In addition, a device for the method's implementation includes three OR circuits, fourteen non-linear units, six adders, four shapers of signal of norm of gyroquaternion and a shaper of signal of norm of astroquaternion; output of astrodetector is connected through the shaper of astroquaternion norm signal to the first inputs of the fifth, the sixth, the seventh and the eighth adders; output of the shape of norm signal of astroquaternion is connected through the ninth adder to input of the fifth non-linear unit; output of the first shaper of basis is connected through in-series connected first shaper of norm signal of gyroquaternion, the fifth adder and the sixth non-linear unit to the first input of the first OR circuit, output of the second shaper of basis is connected through in-series connected second shaper of norm signal of gyroquaternion, the sixth adder and the seventh non-linear unit to the second input of the first OR circuit; output of the third shaper of basis is connected to the third input of the first OR circuit through in-series connected third shaper of norm signal of gyroquaternion, the seventh adder and the eighth non-linear unit, output of the fourth shaper of basis is connected to the fourth input of the first OR circuit through in-series connected fourth shaper of norm signal of gyroquaternion - the eighth adder and the ninth non-linear unit, output of the third shaper of norm signal of gyroquaternion is connected through the tenth adder to input of the tenth non-linear unit, output of the fourth shaper of norm signal of gyroquaternion is connected to the second input of the tenth adder, output of the first gyroscope is connected through the eleventh non-linear unit to the first input of the second OR circuit and through in-series connected first differentiating device and the twelfth non-linear unit to the first input of the third OR circuit, output of the second gyroscope is connected through the thirteenth non-linear unit to the second input of the second OR circuit, and through in-series connected second differentiating device and the fourteenth non-linear unit to the second input of the third OR circuit, output of the third gyroscope is connected through the fifteenth non-linear unit to the third input of the second OR circuit, and through in-series connected third differentiating link and the sixteenth non-linear unit to the third input of the third OR circuit, output of the fourth gyroscope is connected through the seventeenth non-linear unit to the fourth input of the second OR circuit, and through in-series connected fourth differentiating device and the eighteenth non-linear unit to the fourth input; the third OR circuit, outputs of the third OR circuit, the tenth non-linear unit, the fifth non-linear unit, the first OR circuit, the second OR circuit are the second, the fourth, the fifth and the sixth outputs of the device respectively. EFFECT: improving reliability and accuracy of a monitoring method of failure of a gyroscopic measuring device, and a device for the method's implementation. 2 cl, 5 dwg
The invention relates to the field of measuring equipment, namely, to monitor the health of gyroscopes as part of the spacecraft to measure its orientation and angular velocity of turn. There is a method of determining the fault of the gyroscopes in the composition of meter orientation and angular movements of the spacecraft, namely, that form the four output signals of the gyroscopes, four signal bases, and when the tenure of the output signals of the gyroscopes within five seconds to form a first fault signal [1]. The disadvantage of this method of fault finding gyroscopic measuring the velocity vector of the spacecraft is the low reliability and accuracy of determining the angular velocity of the aircraft in the process of changing complex flight conditions. A device fault finding gyroscopic measuring the angular velocity vector of the spacecraft containing the serially connected control device, the first switch, the actuator, spacecraft and astropathic, the second output of the spacecraft is connected through serially connected first gyroscope, the first imaging unit basis and the second switch to the first input device under control of the population, the second input of the first switch is connected with the output of the test signal generator, the output of the first gyroscope connected to the first input of the first adder, the first inputs of the second and third formers base and connected in series through the first delay unit, a first adder and the first nonlinear block to the first input circuit And the third output of the spacecraft through the second gyroscope connected to the first input of the fourth imaging unit basis, the second inputs of the second and third formers basis, with the first input of the second adder, and the output of the second gyroscope is connected through serially connected second delay unit, a second adder and a second non-linear unit with a second input circuit And the fourth output of the spacecraft through the third gyro is connected to the third input of the first imaging unit basis, with the second inputs of the third and fourth formers basis, with the first input of the third adder, and the output of the third gyro connected in series through the third adder, the third nonlinear block is connected to the third input circuit And the fifth output of the spacecraft through the fourth gyro is connected to the third inputs of the second, third and fourth formers bases, the output of the fourth gyro connected to the first input of the fourth adder and through sequence is correctly included the fourth delay unit, the fourth adder and the fourth nonlinear block with the fourth input circuit And the second input control device is input and the circuit output And the first output, the outputs of the second, third and fourth formers basis connected respectively with the second, third and fourth inputs of the second switch [2]. A disadvantage of the known device is, as the method of measurement, low reliability and accuracy of the angular velocity of the spacecraft during flight. To avoid these disadvantages of the known method is proposed a method of determining fault gyroscopic measuring the angular velocity vector of the spacecraft, characterized in that form five threshold alarms, norms giroversion, signals norms bases, signal standards astromaterials, determine the rate of change of the output signals of each of the gyroscopes and when they exceed the first threshold signal to generate a second fault signal detect signals of the difference signals giroversion bases and when they exceed the second threshold signal to form a third fault signal, after receiving at least one fault signal to determine the signal difference between the signal norms of pyrocatechin of rabochaia and signal standards and astromaterials exceeding its third threshold signal to form a fourth fault signal, occasionally on the time interval of five minutes to determine the signals of the difference signals giroversion signal bases and signal astromaterials and exceeding its fourth threshold signal to generate the fifth signal malfunction occasionally within four seconds after receipt of the third signal malfunction unlock the control circuit spacecraft, served on the input actuator test a test signal to measure the output signals of the gyroscopes and when they exceed the fifth threshold signal to generate a sixth signal failure. And the device that implements the method according to claim 2, characterized in that it further comprises three schemes "OR"fourteen nonlinear blocks, six adders, four shaper signal standards pyrocatechin and shaper signal standards astromaterials, the output of astropathic through the shaper signal standards astromaterials connected with the first inputs of the fifth, sixth, seventh and eighth adders, the output of the signal shaper standards astromaterials through ninth adder connected to the input of the fifth non-linear block, the output of the first driver base is connected through serially connected to the first driver signal standards pyrocatechin, fifth and sixth adder nonlinear block to the first input of the first circuit "IL is", the output of the second shaper basis connected in series through the second driver signal standards pyrocatechin, sixth and seventh adder nonlinear block is connected to a second input of the first circuit OR the output of the third driver base connected to the third input of the first circuit OR connected in series through the third signal shaper standards pyrocatechin, seventh and eighth adder nonlinear block, the fourth output of the shaper base connected to the fourth input of the first circuit OR connected in series through the fourth signal shaper standards pyrocatechin, the eighth adder and ninth nonlinear block, the output of the third signal shaper standards pyrocatechin through tenth adder connected to the input of the tenth nonlinear block, the output of the fourth signal shaper standards pyrocatechin connected to a second input of the tenth adder, the output of the first gyroscope through eleventh nonlinear block connected to the first input of the second circuit "OR" and connected in series through the first differential device and the twelfth nonlinear block to the first input of the third circuit OR the output of the second gyroscope through the thirteenth nonlinear block is connected to a second input of the second circuit "OR", and connected in series through the second differentsiruyushchaya and fourteenth nonlinear block with the second input of the third circuit "OR", the output of the third gyro is connected through the fifteenth nonlinear block to the third input of the second circuit "OR", and connected in series through the third differential link and sixteenth nonlinear block to the third input of the third circuit OR the output of the fourth gyro through the seventeenth nonlinear block is connected to the fourth input of the second circuit "OR", and connected in series through the fourth differentiating device and eighteenth nonlinear block to the fourth input of the third circuit "OR"the outputs of the third circuit "OR"tenth nonlinear block, the fifth nonlinear block, the first circuit OR second circuit "OR" are respectively the second, third, fourth, fifth and sixth outputs of the device. The essence of the proposed technical solution is illustrated by figure 1, which shows the structural diagram of a device failure detection gyroscopic measuring the angular velocity vector of the spacecraft, figure 2 - non-linear static characteristic of the nonlinear blocks, figure 3 - location of the four gyroscopes in space, figure 4 - structure of the shaper signal basis, figure 5 - structure shapers signal standards pyrocatechin (and astromaterials). In the figures, the following notation: 1 control unit, 2 - switch 3 - COI is niteline device, 4 - spacecraft, 5 - astropathic, 6 - first shaper basis, 7 - unit test signal, 8 is the first gyroscope, 9 - second shaper basis, 10 - second shaper basis, 11 - fourth shaper of the base 12 to the first delay unit, 13 is the first adder 14 is the first non-linear block, 15 - scheme "And", 16 - second gyroscope, a 17 - second delay unit, 18 - second adder 19 is the second nonlinear element 20 is the third gyro, 21 - second delay unit, 22 - third adder 23 - third of the nonlinear block, 24 - fourth gyroscope, a 25 - the fourth delay unit, 26 - fourth adder 27 - fourth of the nonlinear block, 28 - shaper signal standards astromaterials, 29, 30, 31, 32 fifth, sixth, seventh and eighth adders, respectively, 33 - ninth adder 34 - fifth of the nonlinear block 35 is the first driver signal standards pyrocatechin, 36 - sixth of the nonlinear block, 37 - second driver signal standards pyrocatechin, 38 - seventh of the nonlinear block, 39 - the third driver signal standards pyrocatechin, 40 - eighth of the nonlinear block, 41 - fourth shaper signal standards pyrocatechin, 42 - ninth nonlinear block, 43-tenth of the nonlinear block, 44 - tenth adder 45 - eleventh of the nonlinear block, 46 - second scheme "OR", 47 first differentiating device, 48 - twelfth of the nonlinear block, 49 - thirteenth of the nonlinear block, 50 - second is e a differentiating device, 51 - fourteenth nonlinear block 52 is the third scheme "OR", 53 - fifteenth of the nonlinear block, 54 - third differentiating device, a 55 - sixteenth of the nonlinear block, 56 - seventeenth nonlinear block, 57 - fourth differentiating device, a 58 - eighteenth nonlinear block, 59 - first scheme "OR"60 - second switch 61 to the control signal, the first switch 62 is a signal to control a second switch, 63, 64, 65, respectively first, second and third amplifiers 66 - the eleventh adder, 67, 68, 69 fourth, fifth and sixth amplifiers 70, 71, 72 first, second and third multipliers, respectively, 73 - twelfth adder 74 - seventh amplifier 75 is the first unit of a constant signal, 76-thirteenth adder 77 - eighth amplifier, 78, 79 fourth and fifth multipliers, respectively, 80 - second unit constant signal 81-fourteenth adder 82 - sixth multiplier, 83, 84, 85, 86, respectively the first, second, third and fourth solvers parameters pyrocatechin, 87, 88, 89, 90, respectively seventh, eighth, ninth and tenth multipliers, 91 - fifteenth adder, 92, 93, 94, 95, respectively the fifth, sixth, seventh and eighth blocks delay, 96, 97, 98, 99 - sixteenth, seventeenth, eighteenth and nineteenth multipliers, respectively, 100 - sixteenth adder. Figure 2 shows the static features and advantages of the ka nonlinear blocks, indicated in figure 1. Static response may differ only by the value of the dead zone (-P, P), which for each nonlinear block is given a flight assignment. Thus the threshold values P in the nonlinear blocks 1 in the General case are different. Figure 3 shows the instrument coordinate system OXpYpZpthe location of the gyro 8, 16, 20 and 24, as well as views on top of them [1]. Gyroscopes are complanare around the axis OXpand moved to the corner of Figure 4 presents the structure shapers signal of the base 6, 9, 10 and 11, the same for all and consists of a large-scale amplifiers 63, 64, 65, the inputs of which receive the respective outputs of the gyroscopes, and the eleventh adder 66 vector output Figure 5 shows the structure shapers signal standards pyrocatechin (astrogation), which provides the characteristic calculation signal standards pyrocatechin (equally and astromaterials) for the following dependencies. By measuring the projections of the angular velocities of where Δt=0.1 sec, based on the signal norms of quaternion small rotation of the spacecraft 4 Next, calculate the value of pyrocatechin on the i-step: about parameters where Besides, the dependence (1) is implemented using the fourth 67, 68 fifth and sixth 69 amplifiers, the gain of which is identical and equal to 0.1. Using the first 70 and second 71, 72 third and twelfth multipliers adder 73, a signal is generated (δ)2according to the formula 2. The value of r is generated by a seventh amplifier 74, the first unit of the permanent signal 75, the thirteenth adder 76, the eighth amplifier 77. Parameters pyrocatechin by expression (4) is formed first 83 and second 84, 85 third and fourth 86 solvers parameters pyrocatechin, the inputs of which receive the signals ΔP1ΔP2,ΔP3ΔP4with outputs respectively of the fourth 78, 79 fifth, sixth multipliers 82 and fourteenth adder 81, the input of which receives signals from the outputs of the second knob constant signal 80 and the seventh amplifier 74. Values of After obtaining the parameters of the Patterns solvers parameters pyrocatechin 83, 84, 85 and 86 are formed by connecting multipliers and adder according to expressions (4) (figure 5 they are not disclosed wid the evidence of their construction). For example, consider the first equation of the expression (4) for the calculation of Similarly retrieved page is ctory second 84, third 85, fourth solvers parameters pyrocatechin, which are built on the second, third and fourth equations of expression (4). Further, with the sixteenth 96, seventeenth 97, eighteenth 98, nineteenth 99 multipliers and sixteenth adder 100 is formed of pyrocatechin Piat the i-th step according to the expression Figure 5 shows don't all think the appropriate connections. This is done in order not to clutter the drawing. Of the four equations of expression (4) it is obvious that the inputs of all solvers parameters pyrocatechin 83, 84, 85, 86 must submit ΔPjand In cases where fault is not generated, the information gyroscopic measuring the angular velocity vector of the spacecraft is reliable and can be used to generate a control signal in the control device 1. Otherwise, the control device 1, the control signal is not generated due to the unreliability of the information received. The sequence of steps of the method of failure detection is implemented as a device fault finding, therefore, the formation of six fault trace, using figure 1. The first fault signal specified in the restrictive part of the claims on the method, is formed on the circuit output And 15. If the signals at the outputs of the gyroscopes 8, 16, 20 and 24 are not changed within 5 seconds, it will lead to the fact that the signals entering nosummary 13, 18, 22 and 26, respectively when compared with signals, "detainees" at step h, the outputs of the delay blocks 12, 17, 21 and 25 to provide a zero signal or close to it - less threshold P (see figure 2). At the output schema And 15 will be 1 zero signal, which will be considered a receipt of the first fault signal. In this case, does not operate normally, none of the gyroscope. If not all the faulty gyroscopes, the number of faulty gyroscope can be determined by measuring the outputs alternately nonlinear blocks 14, 19, 23, 27. The second fault signal to get the output of the third circuit OR 52, the inputs is derived from the output signals of the gyroscopes. If the derivative will be greater than the first threshold signal, the output of the corresponding linear block 48, 51, 55 or 58, a signal will appear, indicating that the rate of change of the output signal of the gyro more valid and this gyro is faulty. Therefore, the appearance of non-zero signal at the output of the third circuit "OR" 52 would indicate a failure of at least one gyroscope. What gyro is defective, you can learn, if we measure the outputs of the nonlinear blocks 48, 51, 55, 58. The third fault signal to get the output of the nonlinear block 43, to which input signal the difference between the two but the m /s outputs shapers 39 and 41/ from signals of bases, formed from the three output signals of the gyroscopes (see Figure 1). The fourth fault signal to get the output of the nonlinear block 34 in that case, if the signal difference between the norm of the signal of the working base 6 and the norm of the signal astropathic 5 exceeds the third threshold signal set in the nonlinear block 34. The fifth fault signal is generated when exceeding the difference of the output signals of one of giroversion 35, 37, 39, 41 and astromaterials 5 threshold signal, set the same in nonlinear blocks 36, 38, 40, 42. The sixth fault signal at the output of the second circuit OR 46 is formed after the feedback of the output signals of the gyro 8, 16, 20 or 24 on the test input stimulus to the input actuators 3 - after disabling the output signal of the control device 1 for a time within four seconds, switch 2, which at this time connects the test signal output unit of the test signal at the input of actuator devices 3. Detection of faults gyroscopic measuring the angular velocity vector of the spacecraft is in the process of functioning of a control system that includes a control device 1, the switch 2, the actuator 3, the actual spacecraft 4, gyroscopic change Italy 8, 16, 20, 24, astropathic 5, "working" driver basis (6, 9, 10 or 11) and the second switch 60. The commands that control the first 2 and 60 second switches are formed in the flight task and figure 1 - figure 5 is not reflected. In flight setting values are set threshold signal P of all non-linear blocks and forming temporary timeline at the time of connection of the test signal for 4 seconds, on the formation and implementation of temporal intervals of five seconds of the measuring channel and the second and the selection and implementation of moments of connection "working" shaper basis with a switch 60 on command 62. As can be seen from figure 1 and figure 4, the outputs of the shapers base 6, 9, 10 and 11 are vector, the output vector The output signals of the gyro 8, 16, 20 and 24 are received at the input of the differentiating device 47, 50, 54 and 57, nonlinear blocks 56, 53, 4 and 45, shapers base 6, 9, 10 and 11, adders 8, 13, 18 and 26, and delay blocks 12,17, 21 and 25 as shown in figure 1. The output signals of each of the adders is fed to the input of the nonlinear block. The output signal of the adder 26, for example, represents the increment readings gyro 24 for a step of Δt=0.1 sec. If it does not exceed the first threshold signal, is installed in the nonlinear block 27, the output of the latter will be a zero signal. This will indicate the health of the gyroscope 24. Similarly checks whether the remaining gyroscopes, containing for each gyroscope same connection of the blocks of the delay adders and nonlinear blocks. Therefore, the outputs of the nonlinear blocks 23, 19, 14 will be zero signals in the case of health gyroscopes, respectively, 20, 16 and 8. If readings increment during the time Δt=0.1 sec gyro will be unacceptably large, i.e. to exceed the absolute value of the norm (- P, P), then the output of the nonlinear block is formed by the first fault signal, which will appear on the output of the circuit OR 15. If the angular acceleration (or derivatives of the output signals of the gyro 8, 16, 20 and 24 will be provided in nonlinear blocks 48, 51, 55 and 58 of the border, will appear at the outputs of the second fault signal, it will appear at the output of the second circuit "OR" 52. Is this the exceeding of the first threshold signal nonlinear blocks 51, 55, 48, 58. The third fault signal is generated at the output of the nonlinear block 43, when the difference of the outputs 41 fourth and third 39 shapers signal standards pyrocatechin to exceed the bounds (- P, P), i.e. when exceeding the second threshold signal nonlinear block 43. On the fifth output of the nonlinear block 34 receives the fourth fault signal when exceeding the difference from the outputs of the shaper signal standards astromaterials 28 and the output of the first driver signal standards pyrocatechin 35 third threshold signal set in the fifth nonlinear block 34. The structure of the signal shaper standards astromaterials exactly the same as the structure of the signal shaper standards pyrocatechin presented on figure 5. The fifth fault signal appears at the output of the first circuit "OR" 59 in that case, if the signal difference of the norms of astromaterials from the output of the signal shaper standards astromaterials 28 and signals regulations relevant giroversion with outputs of the first 35 and second 37, 39 third and fourth 41 shapers signal standards pyrocatechin obtained from the outputs of the adders 29, 30, 31, 32, exceeds the range of allowable values, limited nonlinear blocks 36, 38, 40 and 42, as shown in figure 1. This procedure is performed occasionally for 5 minutes. the Estai a fault signal is generated at the output of the second circuit "OR" 46 after receiving the third signal failure. The formation of the signal from the outputs of the gyroscopes 8, 16, 20, 24 in this period of time within 4 seconds is a reaction of series-connected actuators 3 and spacecraft 4 test a test signal output from the test signal generator 7. The first switch 2 on the team flight task 61 disconnects the control circuit spacecraft 4 - disconnects the output control device 1 from the entrance actuators 3. Nonlinear blocks 45, 49, 53 and 56 at its output generates a sixth command malfunction of the corresponding gyroscope when exceeding the input signals of the fifth threshold signal. Thus, the proposed method and the device for its realization, allows you to control the measurement channel angular velocity ω and produce outputs schemes "And" 15, nonlinear blocks 34, 43 and schemes "OR" 46, 52 and 59 of the fault signals. In case of failure on the outputs of the circuits OR receive a single signal, and the circuit output And a zero signal. In the flight task set threshold nonlinear blocks, different for each channel forming fault - from first to sixth, but in each channel to create a certain type of failure signal thresholds P are the same. For example, when forming the fifth fault there are four nelin is inih block 36, 38, 40 and 42 with the same thresholds. But the latter is not equal to the thresholds in the formation of the sixth failure signal to the thresholds established in the nonlinear blocks 45, 49, 53, 56. After receiving any type of malfunction it is necessary to conduct activities aimed at preventing the influence of faults on the performance of the control system. The circuitry for performing these activities in the application are not specified. The technical result from the use of the proposed technical solution (method and device implementing the method) is to improve the reliability and accuracy of the method and device for measuring the angular velocity of the spacecraft. Inventive step of the claimed method and device implementation is confirmed by the distinctive part of the formula of the invention according to items 1 and 2. Literature 1. Ukhanov E.V. Development of algorithms for control and diagnostics system attitude control of spacecraft. Summary. - Kharkiv: Kharkiv Polytechnic Institute. 2005. C.56-62, 80-86 http://www.bestreferat-32636.html/prototip/. 2. Ukhanov E.V. Development of algorithms for control and diagnostics system attitude control of spacecraft. Summary. -Kharkov: HLI. 2005. C.23-47, 62-96 http://www.bestreferat-32636.html/prototip/. 1. The method of determining fault gyroscopic measuring the angular velocity vector of the spacecraft, the bookmark is different in that, what form four output signals of the gyroscopes, four signal bases, and when the tenure of the output signals of the gyroscopes within five seconds to form a first fault signal, characterized in that form five threshold alarms, norms giroversion, signals norms bases, signal standards astromaterials, determine the rate of change of the output signals of each of the gyroscopes and when they exceed the first threshold signal to generate a second fault signal detect signals of the difference signals giroversion bases and when they exceed the second threshold signal to form a third fault signal, after receiving at least one fault signal to determine the signal difference between the signal norms of working pyrocatechin basis and signal standards astromaterials when exceeded its third threshold signal to generate a fourth signal malfunction occasionally on the time interval of five minutes to determine the signals of the difference signals giroversion signal bases and signal astromaterials and exceeding its fourth threshold signal to generate the fifth signal malfunction occasionally within four seconds after receipt of the third signal malfunction unlock the control circuit spacecraft, served on the entrance fulfill inogo device test test signal, measure the output signals of the gyroscopes and when they exceed the fifth threshold signal to generate a sixth signal failure. 2. A device for determining fault gyroscopic measuring the angular velocity vector of the spacecraft containing the serially connected control device, the first switch, the actuator, spacecraft and astropathic, the second output of the spacecraft is connected through serially connected first gyroscope, the first imaging unit basis and the second switch to the first input of the control unit, the second input of the first switch is connected with the output of the test signal generator, the output of the first gyroscope connected to the first input of the first adder, the first inputs of the second and third formers base and connected in series through the first delay unit, a first adder and the first nonlinear block with the first input of the differential And, the third output of the spacecraft through the second gyroscope connected to the first input of the fourth imaging unit basis, the second inputs of the second and third formers basis, with the first input of the second adder, the output of the second gyroscope is connected through serially connected second delay unit, a second adder and a second non-linear unit with the second input circuit And, Thursday is rty output of the spacecraft through the third gyro is connected to the third input of the first imaging unit basis, with the second inputs of the third and fourth formers basis, with the first input of the third adder, and the output of the third gyro connected in series through the third adder, the third nonlinear block is connected to the third input circuit And the fifth output of the spacecraft through the fourth gyro is connected to the third inputs of the second, third and fourth formers bases, the output of the fourth gyro connected to the first input of the fourth adder and through the series-connected fourth delay unit, the fourth adder and the fourth nonlinear block with the fourth input circuit And the second input control device is input, and the output of the circuit And the first output device, the outputs of the second, third and fourth formers basis connected respectively with the second, third and fourth inputs of the second switch, characterized in that it contains three additional schemes "OR"fourteen nonlinear blocks, six adders, four shaper signal standards pyrocatechin and shaper signal standards astromaterials, the output of astropathic through the shaper signal standards astromaterials connected with the first inputs of the fifth, sixth, seventh and eighth adders, the output of the signal shaper standards astromaterials through ninth adder connected to the input p is also non-linear block, the output of the first driver base is connected through serially connected to the first driver signal standards pyrocatechin, fifth and sixth adder nonlinear block to the first input of the first circuit OR the output of the second shaper basis connected in series through the second driver signal standards pyrocatechin, sixth and seventh adder nonlinear block is connected to a second input of the first circuit OR the output of the third driver base connected to the third input of the first circuit OR connected in series through the third signal shaper standards pyrocatechin, seventh and eighth adder nonlinear block, the fourth output of the shaper base connected to the fourth input of the first circuit OR through serially connected fourth signal shaper standards pyrocatechin, the eighth adder and ninth nonlinear block, the output of the third signal shaper standards pyrocatechin through tenth adder connected to the input of the tenth nonlinear block, the output of the fourth signal shaper standards pyrocatechin connected to a second input of the tenth adder, the output of the first gyroscope through eleventh nonlinear block connected to the first input of the second circuit "OR" and connected in series through the first differential device and the twelfth nonlinear the block to the first input of the third circuit "OR", the output of the second gyroscope through the thirteenth nonlinear block is connected to a second input of the second circuit "OR", and connected in series through the second differentiating device and fourteenth nonlinear block with the second input of the third circuit OR the output of the third gyro is connected through the fifteenth nonlinear block to the third input of the second circuit "OR", and connected in series through the third differential link and sixteenth nonlinear block to the third input of the third circuit OR the output of the fourth gyro is connected through the seventeenth nonlinear block to the fourth input of the second circuit "OR", and through serially connected ketvirtadienis device and eighteenth nonlinear block to the fourth input, the outputs of the third circuit "OR"tenth nonlinear block, the fifth nonlinear block, the first circuit OR second circuit "OR" are respectively the second, third, fourth, fifth and sixth outputs of the device.
|
| © 2013-2014 Russian business network RussianPatents.com - Special Russian commercial information project for world wide. Foreign filing in English. |