68results about How to "Save research and development costs" patented technology

The invention provides a multi-mode filtering method, and the method comprises the steps: receiving detection data; enabling a filter to carry out point removal judgment: enabling the filter to carry out resetting judgment if there is point removable identification, or else, calculating an output value of alpha-beta filtering and an output value of alpha-beta-gamma filtering; judging whether a mechanical operating identification is true or not through mechanical operation: outputting an output value of alpha-beta-gamma filtering if the mechanical operating identification is true, or else, judging whether the mechanical operating identification at a last observation moment is true or not; outputting the output value of alpha-beta-gamma filtering if the mechanical operating identification at the last observation moment is true, or else, outputting the output value of alpha-beta filtering. The method employs a fundamental structure of alpha-beta filtering and alpha-beta-gamma filtering synchronization parallel calculation, and the observation accumulation windows of two filters are different in size, and are very suitable for non-mechanical operating condition and mechanical operating condition. According to a mechanical recognition result, the method switches the output of the filters in real time, and can calculate the target position accurately and efficiently.

The invention discloses a synchronous control method of the motion of a combined supporting mechanism of a wind tunnel. First, a tail supporting mechanism is identified as an active control object, and a stripe hanging supporting mechanism is identified as a follow-up control object; second, the characteristics including dynamic response time difference, motion speed and the like of the two independent supporting mechanisms in the combined supporting mechanism are tested and data of the characteristics are recorded; finally, the effect that the auxiliary supporting mechanism follows the main supporting mechanism in real time is achieved through sequential control of instructions, and corresponding safety strategies are adopted to cope with risks likely to exist in the process of a test, so that the test suffers no risk at all. The synchronous control method has the advantages that through the synchronous control over the two independent supporting mechanisms, combination supporting of an aircraft model is achieved, and a new test technology is provided for an aerodynamic test of the aircraft model in the wind tunnel; the method is good in operability, strong in engineering adaptability and high in safety and can meet special requirements in the technical field of wind tunnel supporting interference tests, greatly save equipment development expenditure and shorten the development period.

The invention relates to a satellite-borne software in-orbit maintaining and upgrading method. Satellite-borne software is divided into basic applications and applications; the basic applications are stored in a PROM (Programmable Read Only Memory); the applications are stored in a read-write non-volatile storage medium such as an EEPROM (Electrically Erasable Programmable Read-Only Memory) or an FLASH and the like; a storage logic of the applications comprises an original software storage region, an upgraded software storage region and a module software top inputting region; all the three regions comprise checking information; and in an initial state, storage contents in both the original software storage region and the upgraded software storage region are original applications of the satellite-borne software and the module software top inputting region is empty.. By ground command control and data top inputting, three requirements of the satellite-borne software on integral software upgradation, software module replacement or parameter modification and increase of software modules can be supported and satellite-borne software in-orbit maintaining and upgrading efficiency is improved.