3results about How to "Guaranteed transmission reliability" patented technology

This invention relates to the field of smart meter communication data acquisition technology, and discloses a method for anti-interference data acquisition in smart meter communication based on multi-carrier modulation technology. The method includes using multi-carrier modulation to perform frequency division processing on the signal during data transmission, combining channel state perception and dynamic subcarrier allocation strategies to avoid interference frequency bands in real time, and enhancing data robustness through time-frequency joint coding. This application can effectively suppress narrowband interference and impulse noise, improving the communication reliability and data acquisition accuracy of smart meters in complex electromagnetic environments.

This invention belongs to the field of mine safety monitoring technology, specifically involving an intelligent management system based on miners' positioning data processing. The system includes a wearable precision inertial measurement device, a multi-source data fusion gateway, an underground wireless transmission network, a biomechanical feature extraction server, a behavioral quality evaluation management platform, and a multi-dimensional early warning terminal. The wearable device collects high-frequency motion vector data of miners in real time, performs preliminary noise reduction using the gateway, and the server establishes a gait cycle segmentation model to accurately extract gait feature parameters such as stride length, ground contact time interval, and body center of gravity oscillation frequency. This invention realizes a shift from simple spatial location monitoring to in-depth monitoring of biological signals and behavioral quality, filling the monitoring blind spots caused by passive displacement and improving the proactiveness of mine risk early warning and the accuracy of safety supervision.

The utility model discloses a kind of reel transmission structures, it is related to reel transmission technical field, including driving sprocket and driven sprocket, the driving sprocket and driven sprocket are arranged in parallel, driving sprocket and driven sprocket are tensioned and provided with synchronous belt, the side coaxial fixed with one reel of driving sprocket, the same side coaxial fixed with two reels of driven sprocket, the wheel rim of one reel and two reels is evenly distributed with pin column convex column, the upper level of one reel and two reels is provided with flow channel plate, the flow channel plate is fixed in machine tool workstation by bolt mounting mode. The utility model is ensured that product can be strictly conveyed according to preset path and position by the cooperation of pin column convex column and product round hole, realizes accurate step type conveying.