37results about How to "Improve computing reliability" patented technology

The application discloses a kind of multi-functional gas component concentration monitoring sensors in tunnel and use method, belong to road construction technical field.The application includes white laser emitter, 90° prism, beam splitter, dust cleaner, dispersion prism, 180° prism, dispersion light intensity detector, phase interference range finding device, data processing and sending device and guide rail.The application solves the problem that the function of the existing monitoring sensor in tunnel is single, and the cost is higher and the monitoring efficiency is lower by relying on multiple single-function sensors for monitoring;The application significantly improves the monitoring accuracy of the concentration of various gas components by full-spectrum coverage and double-data comparison to average, breaks through the limitations of traditional single-function sensors, without multiple sensor devices in parallel, significantly reduces the overall operating cost, improves monitoring efficiency.

The invention discloses a DC electric shock current determination method and device for DC power distribution equipment, and belongs to the technical field of power grid power supply. The determination method comprises the following steps: acquiring a plurality of line direct currents of the direct-current power distribution equipment in a preset time period under a current working condition; determining a plurality of window line direct currents corresponding to every two adjacent sliding windows in the plurality of line direct currents; determining a plurality of difference values between the window direct currents corresponding to every two adjacent sliding windows so as to obtain a plurality of window direct current difference values of the direct current power distribution equipment in a preset time period under the current working condition; and according to the plurality of window direct current difference values, determining the direct current electric shock current of the direct current power distribution equipment in a preset time period under the current working condition. The calculation reliability of the direct-current electric shock current can be improved.