2results about How to "Eliminate malfunctions" patented technology

This invention discloses a roving blocking device, a yarn cutting box, spinning equipment, and a roving blocking control method, relating to the field of spinning technology. The roving blocking device includes a first sensor and a blocking mechanism. The blocking mechanism includes a rod that partially extends between roller assemblies based on a yarn breakage signal to block the roving. The first sensor includes a photoelectric sensor that detects the movement of the rod. The rod includes a light-blocking portion and a light-transmitting portion. The rod is positioned opposite the photoelectric sensor from the light-blocking portion to the light-transmitting portion. The movement signal of the rod output by the first sensor can be used together with the yarn breakage signal as a judgment criterion, helping operators to address the two problems that reduce production efficiency: the blocking mechanism has activated even when the yarn has not broken, and the blocking mechanism has not activated even when the yarn has broken. This is beneficial for improving yarn production efficiency.

This application provides a multi-source heterogeneous data fusion method for battery swapping systems, applied to the field of automotive power battery safety monitoring technology. The method controls the directional folding of the thin-walled metal lip at the male end of the battery swapping port to form a Hertzian contact interface, and generates a self-calibrated acoustic attenuation ratio based on the attenuation ratio of transverse and longitudinal composite ultrasonic signals. It induces particle agglomeration by forming transient vortex rings through pulsed airflow and generates an inhalable blockage index using mixed laser scattering signals. It also induces micro-vaporization of the refrigerant through reverse pumping of a liquid cooling system micro-pump, and generates an equivalent overheat loss based on broadband thermoacoustic signals. Time-domain alignment and fusion decisions are performed on the above three parameters. When all three continuously exceed a threshold, a safety trigger command is generated, driving the aluminum foil rupture disc to break and the shape memory alloy retaining ring to undergo phase transformation, collaboratively completing dust removal and structural accommodation. This invention achieves multi-dimensional collaborative monitoring and active safety protection of the battery system's mechanical connections, heat dissipation channels, and cooling efficiency.