3results about How to "Calibration accuracy" patented technology

The application discloses a long-distance tunnel control through-accuracy measurement and verification system, and relates to the technical field of tunnel construction measurement. The system comprises a measurement control point, an observation traverse, a traverse stake, a traverse measurement network, the observation traverse being arranged on the traverse stake, one end of the observation traverse being connected with the measurement control point, the other end of the observation traverse being connected with the traverse measurement network, a first ground control network; the system further comprises a pilot hole, a verification traverse, a through tunnel, a horizontal drill hole and a second ground control network; the structure of the second ground control network is the same as that of the first ground control network, the verification traverse is arranged in the pilot hole and along the length direction of the pilot hole, the verification traverse is installed on the traverse stake of the second ground control network, one end of the verification traverse is connected with the measurement control point of the second ground control network, and the other end of the verification traverse is connected with the traverse measurement network through the horizontal drill hole. The application has the effect of verifying the through-accuracy measurement result of the first ground control network.

Embodiments of the invention provide a stator module and a conveyor system. The stator module includes a stator body and an armature winding, wherein the armature winding is fixedly arranged on the stator body, the armature winding is provided with an upper surface and a lower surface which are oppositely arranged in a first direction, and a first splicing surface and a second splicing surface which are oppositely arranged in a second direction perpendicular to the first direction, the armature winding is provided with a first protrusion, and the first protrusion protrudes from the first splicing surface in the second direction, wherein the armature winding is provided with a plurality of armature coils arranged periodically, and at least part of the plurality of the armature coils are arranged in the first protrusion. Since an end of the armature winding is provided with the protrusion, a mover module may still have relatively precise kinematic accuracy at a joint of the two adjacent stator modules, so that the mover module may still have a higher speed when running to the joint, so as to ensure the continuity of the high-speed operation of the mover module.

The invention provides a jewelry monitoring system based on features. The jewelry monitoring system comprises a data module, an initial portrait module, a feature acquisition module, a portrait risk module and a hierarchical supervision module, the data module comprises feature data used for establishing a portrait, a portrait period and threshold data used for evaluating the portrait; wherein the feature data comprises a feature category, a feature value and a feature weight, and the threshold data comprises a feature difference threshold and a portrait change trend threshold; the initial portrait module can establish an initial portrait as an evaluation standard through the initial feature data; the feature acquisition module can acquire features according to a set portrait period and establish a monitoring portrait through the acquired features; the portrait risk module can obtain risk features of the monitored portrait; and the supervision module carries out hierarchical supervision on the generated risk characteristics. The data screening efficiency is improved, and the model accuracy is improved.