4 results about "Incremental encoding" patented technology

The present application relates to the technical field of positioning and speed measurement of super-speed maglev train, in particular to a super-speed positioning and speed measurement method and system based on laser coding, mainly including a plurality of laser code readers with unique numbers which are uniformly distributed along the track of the train, and the laser signals read each time are coded; the activation state of the laser code reader is determined according to the signal vector, and the state information of the laser code reader is transmitted to the positioning and speed measurement algorithm model. The laser propagation speed is fast, the photoelectric response speed is fast, and the positioning and speed measurement algorithm is simple, so that the delay of the speed positioning method can reach microseconds; through the combination of absolute coding and incremental coding, the problem of initial positioning loss is solved, the design of the ID code plate can make the laser coding not affected by the vertical floating of the train, and the redundant setting of the response of the two laser code readers increases the reliability and safety of the positioning and speed measurement algorithm results.

This invention provides a method and apparatus for analyzing incremental encoder output signals. The method includes: acquiring a first set of pulse signals and a second set of pulse signals from the incremental encoder output signal, wherein the first set of pulse signals includes amplitude, phase difference, and clutter; simulating and reproducing a Lissajous image fitted by the first and second sets of pulse signals to obtain the roundness of a standard circle; calculating a corrected Lissajous image to obtain the corrected roundness; comparing the corrected roundness with the roundness of the standard circle to confirm the failure weight of the Lissajous image; the corrected roundness includes a first corrected roundness, a second corrected roundness, and a third corrected roundness, which are calculated using clutter, amplitude, and phase difference, respectively. The incremental encoder output signal analysis method and apparatus provided by this invention improves the accuracy of the detection signal by comparing the corrected roundness with the roundness of the standard circle to confirm the failure weight of the Lissajous image.

The application discloses a sepsis organ dysfunction early warning method based on sparse data incremental coding, comprising the following steps: obtaining event sequence data and non-event sequence data of a target object, wherein the event sequence data comprises at least one of clinical diagnosis data, treatment record data and laboratory history detection data, and the non-event sequence data comprises at least past medical history data and target sign data; performing incremental coding on the event sequence data to obtain a sparse mode of the event sequence data; processing the sparse mode, the event sequence data and the non-event sequence data according to a pre-constructed early warning model to obtain a sepsis risk index of the target object; and outputting target early warning information in the case that the sepsis risk index meets preset early warning conditions.

The application provides an absolute value encoding method, system and program product of an optical magnetic encoder. The method is applied to an encoder system, and the method comprises the following steps: in the case that a magnetic absolute value encoder and an optical incremental encoder are both in a non-fault state, obtaining a fused absolute position value based on a magnetic absolute position value of the magnetic absolute value encoder and an optical incremental value of the optical incremental encoder, the fused absolute position value serving as an output absolute position value of the encoder system, wherein the magnetic absolute position value of the magnetic absolute value encoder is used to determine an optical reference position of the optical incremental encoder; the magnetic absolute position value has a first precision, and the fused absolute position value has a second precision, and the second precision is higher than the first precision. Therefore, the absolute position of the movement of a mechanical component can be reliably and accurately obtained.