4 results about "Stroboscope" patented technology

The utility model discloses a kind of self-service single taking machines, including machine body, the machine body bottom end is equipped with universal wheel, machine body upper side is provided with reading assembly, reading assembly includes identity card reader and medical insurance card reader, the outside of identity card reader and medical insurance card reader is equipped with warning assembly. By setting warning assembly, when the user places identity card or medical insurance card on reading assembly in use process, the light detected by light sensor in warning assembly is blocked by card at this time, illumination intensity will change, light sensor will rapidly perceive change and detect feedback to control module in machine body, at this time, stroboscope in mounting groove is lit, the light generated by it is projected on to outside through light transmission plate and prompts user, prevent user from forgetting identity card or medical insurance card on machine body, avoid unnecessary loss.

This invention relates to the field of intelligent sensor technology, specifically to a non-contact speed measurement method and system based on an LED stroboscope, comprising the following steps: acquiring time intervals, factoring prime numbers to establish a verification period, emitting pulse light to obtain the dual-mode spacing, obtaining the dwell distance in ascending order and scaling it proportionally with the limit width, scaling the stroboscope step size according to the minimum span, and combining intervals to obtain the period-mapped rotational speed. In this invention, by constructing independent prime numbers as alternating illumination benchmarks, period overlap interference is eliminated. The undetermined dwell slip distance is extracted based on the dual-mode edge blur spacing and scaled proportionally with the allowable limit image edge blur width. A scale transformation fusion is performed on the minimum frequency adjustment span to obtain the stroboscope adjustment time step size. The true periodic pulse elements are extracted by combining the current emission time interval and mapped to mechanical rotation frequency features, eliminating subjective visual errors and reading delays, achieving automatic analysis of operating speed, and significantly improving speed measurement performance.