6results about How to "Realize fine positioning" patented technology

The utility model provides a kind of gauge for automobile engine cover assembly, including workbench, profiling mechanism, initial positioning mechanism, fine positioning mechanism, locking mechanism, controller and pass gauge;Profiling mechanism includes multiple profiling units, multiple profiling units are set on workbench along the outer edge contour of the engine cover assembly to be detected, and detection gap is formed between profiling unit and the outer edge contour of the engine cover assembly;Initial positioning mechanism is used for positioning engine cover assembly;Fine positioning mechanism includes support unit and sensing unit, support unit is used for supporting engine cover assembly and adjusting the position of engine cover assembly, sensing unit is used for abutting with the lower surface of engine cover assembly and sensing the pressing force of the abutting part with engine cover assembly and feeding back pressure information;Locking mechanism is used for tensioning and compacting engine cover assembly;Controller is electrically connected with sensing unit, and controller displays the pressure information fed back by sensing unit;Pass gauge is used for detecting the uniformity of detection gap.

The application discloses a positioning navigation system and method for neurosurgery puncture operation, and the system comprises a nuclear magnetic resonance scanning unit, an optical positioning unit, a puncture unit and a navigation system terminal; the puncture unit comprises a mechanical arm and a puncture needle; the optical positioning unit comprises an optical positioner and a positioning navigation support, the positioning navigation support is fixed on the head of a patient and the tail end of the mechanical arm, and a plurality of optical marker balls are fixed on the positioning navigation support; the optical positioner is used for collecting optical image information of the optical marker balls; the nuclear magnetic resonance scanning unit comprises a nuclear magnetic resonance scanner, a Z frame and a plurality of titanium nails, the plurality of titanium nails are fixed on the head of the patient, and the Z frame is located at the tail end of the mechanical arm; the nuclear magnetic resonance scanner is used for collecting scanning image information of the brain of the patient, the titanium nails, the Z frame and the puncture needle; and the navigation system terminal is connected with the nuclear magnetic resonance scanning unit, the optical positioning unit and the puncture unit. The application can realize brain tissue deviation compensation in operation and guarantee the safety of a puncture path.

This invention provides a method for monitoring, locating, and warning of thermal runaway in battery modules, belonging to the field of battery module thermal runaway monitoring technology. This invention involves setting up multiple acoustic sensor arrays within the battery module's energy storage compartment to collect acoustic signals in real time, constructing a target acoustic event feature library including safety valve opening and battery exhaust characteristics, employing a sparse expert hybrid acoustic recognition model to intelligently identify and classify the acoustic signals, and establishing an acoustic region division mechanism based on the exhaust sound attenuation propagation equation. When a safety valve opening event is detected, the thermal runaway module is quickly located by comparing the peak values ​​of the cross-channel sound pressure level. The method continuously monitors the acoustic characteristics of battery exhaust and calculates the sound pressure level attenuation gradient, matching it with the regional acoustic feature library to achieve precise region location. Simultaneously, it predicts the diffusion path based on the thermal runaway propagation dynamics equation and dynamically adjusts the recognition model parameters, solving the technical problem of accurately locating the thermal runaway source.

The application belongs to the field of plant genetic breeding, and discloses a molecular marker closely linked to a pepper nuclear male sterility gene and application thereof, and specifically discloses a molecular marker closely linked to a pepper nuclear male sterility gene, wherein the molecular marker comprises Ind146 and / or Ind147, the sequence of the Ind146 consists of the nucleotide sequence shown in SEQ ID NO:1 and SEQ ID NO:2, and the sequence of the Ind147 consists of the nucleotide sequence shown in SEQ ID NO:5 and SEQ ID NO:6. The molecular marker provided by the application realizes fine positioning of the pepper nuclear male sterility gene, and lays a foundation for final cloning of the pepper nuclear male sterility gene and establishment of a molecular marker assisted breeding system. The molecular marker of the application can be simply, rapidly and high-throughput applied to pepper seed production and breeding practice.

The application discloses a coal seam roof local water-permeable skylight ground exploration treatment method, which realizes "from line to surface" regional fine positioning of a coal seam roof water-resisting soil layer missing area by means of a construction directional main hole and a plurality of branch holes. In this way, the problems of great drilling hole position arrangement blindness, great drilling engineering quantity, great coring engineering quantity, many invalid footage and low efficiency and the like of traditional "point position" and "pairing hole" type drilling and coring positioning of a soil layer missing area specific range are overcome. Meanwhile, the soil layer missing area is grouted and reconstructed by means of the construction directional main hole and the plurality of branch holes, so that the missing area is ensured not to exist, advanced grouting treatment of a concentrated water-permeable skylight in a coal seam mining process and control of a ground loose water-bearing layer gushing water and sand collapse and an underground water resource leakage source are realized, and the method is suitable for large-scale use and popularization in industry.

This invention relates to the field of magnetic field pose analysis technology and proposes a high-precision motion sensing and reconstruction method based on a matrix coil array. The method includes: generating multiple sets of regional guiding currents focused on different spatial regions; decoupling the coupling effect between coils in the matrix coil array to calculate the magnetic field distortion of the regional guiding currents in each spatial region; determining the region to be enhanced based on the comparison results of the magnetic field distortions; unilaterally enhancing the base current corresponding to the region to be enhanced to the actual target current of each coil; acquiring IMU data of the limb through a wireless sensing node; achieving precise limb positioning by driving the matrix coil array with the actual target current; determining the six-degree-of-freedom pose of the limb using the IMU data and the precise position; and converting the six-degree-of-freedom pose into a high-precision motion reconstruction result of the limb. This invention can overcome the influence of magnetic field distortion, thereby improving the accuracy of motion sensing.