38results about How to "Reduce the amount of jitter" patented technology

A distributed avionics system arranged in an aerial vehicle for controlling at least one avionics function. A plurality of avionics processing subsystems are interconnected in a network. Each avionics processing subsystem includes a processor arranged to process at least one task so as to provide a set of data messages including at least one unit of data related to controlling the at least one avionics function on basis of provided input data, related to conditions of the at least one avionics function. A memory module is in operative connection with the processor and is arranged to store instructions for the processor to process the at least one task. At least one of the avionics processing subsystems is arranged to transmit at least one synchronization cycle start signal onto the network.

The invention discloses a pipeline pressure testing system and method.The pipeline pressure testing system comprises a water feeding pump, a pressurizing pump, pressure testing pipelines, fixing pieces, a safety valve return pipe, and a pressure-resisting distribution pipe with an inlet connected with the pressurizing pump and the water feeding pump.The pressure-resisting distribution pipe is communicated with a plurality of connecting pipes, two ball valves and a safety valve are arranged on each connecting pipe in sequence, and the tail end of each connecting pipe is connected with the corresponding pressure testing pipeline.The pipeline pressure testing method includes the steps that firstly, the pressure-resisting distribution pipe and the safety valve return pipe are fixed; then, water is fed into the pressure testing pipelines under the action of control valves and the ball valves; the pressure testing pipelines are pressurized after water feeding is finished.By means of the pipeline pressure testing system and method, simultaneous water feeding and pressurizing at different pressure grades are achieved, and thus the labor intensity of workers is relieved; all steps achieve the mutual effect in the pressure testing process, and thus pressure testing accuracy is improved; meanwhile, the service life of equipment is effectively prolonged, and the later-period maintenance cost is reduced.

The invention discloses a dynamic data acquiring system and a method for precisely positioning an acquiring position thereof. The dynamic data acquiring system comprises an FPGA controller, a step motor, a driving circuit of the step motor, and a position sensor. An FPGA controlling circuit sends direction and pulse signals to the driving circuit of the step motor and maintains a position counter. The driving circuit of the step motor receives driving pulses and direction signals and drives the step motor to move. In the moving process of the step motor, when the FPGA detects that the position sensor has the effective jump, the FPGA resets the position counter, and the position counter counts the sent pulses; after a sent pulse number reaches the set position pulse number of acquiring points and the effective condition of the pulses is detected, the data acquiring operation is carried out. The invention has the advantages of accurate positioning of the acquiring points, high real-timeperformance, automatic control, simplicity, reliability and lower cost.

The invention provides a rotating shaft structure applied to a glass turnover device and further provides the glass turnover device. The rotating shaft structure comprises a rotating shaft body. The rotating shaft body is internally provided with a cavity; at least one through hole set is formed in the surface of the rotating shaft body; each through hole set comprises two oppositely-formed through holes, wherein the two through holes are located in the surfaces of the two opposite sides of the rotating shaft body correspondingly; and the through holes are strip-shaped holes extending in the axial direction of the rotating shaft body, the height of each through hole is 8-16 mm, and the wall thickness of the rotating shaft body is 21-35 mm. Compared with the prior art, through the rotatingshaft structure applied to the glass turnover device, the requirement of turning-over of glass and the requirement of horizontal passing of the glass can be met simultaneously.