Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1732results about How to "Reduce duplication" patented technology

Flight path planning method and device for plant protection unmanned aerial vehicle

ActiveCN105222779AHigh precisionReduce repeat coverage and missed spray ratesNavigational calculation instrumentsLeakage rateAerospace engineering
The invention discloses a flight path planning method and device for plant protection unmanned aerial vehicle, and can improve the operation precision and work efficiency of the unmanned aerial vehicle, reduce duplication coverage, spray leakage rate and energy consumption. The method comprises the following steps: fitting an operation area into a convex polygon, establishing a coordinate system, dividing corresponding area of the convex polygon by using grid to obtain a rectangular area composed of a plurality of raster regions; according to the rectangular area, acquiring an operation path of the plant protection unmanned aerial vehicle, and calculating the operation path length G; calculating the maximum path length Gm of a single operation of one plant protection unmanned aerial vehicle, calculating the midway return number of the plant protection unmanned aerial vehicle according to the G and Gm, and calculating efficient solutions of midway return points of each plant protection unmanned aerial vehicle corresponding to the midway return number; and selecting an optimal solution from the efficient solutions of coordinate of midway return point of each plant protection unmanned aerial vehicle, using the origin of the coordinate system as a starting point, and acquiring the flight path of the plant protection unmanned aerial vehicle according to the optimal solution and the operation path.
Owner:BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI

Method for automatically determining adding amount of detergent according to detergent concentration of washing machine

The invention discloses a method for automatically determining the adding amount of a detergent according to the detergent concentration of a washing machine, which relates to the field of home appliances. The method comprises the following steps of: 1, obtaining the basal area of a detergent-accommodating vessel; 2, obtaining the height of the detergent in the vessel; 3, obtaining the weight of detergent in the vessel; 4, calculating the volume of the current detergent according to the basal area and the height; 5, calculating the density of current detergent according to the volume and the weight of the detergent; and 6, comparing the density with set data in a database by using a master control program to obtain the concentration of the current detergent and then controlling the opening size and time of a delivery valve according to the comparison result. By the method, the concentration of different detergents are discriminated and the throwing amount is automatically adjusted according to the corresponding set program, so the washing effect is improved and the waste of the detergent is reduced; and the particular concentration of the current detergent can be obtained by using a plurality of sensors, so complicated manual operation is reduced and intellectualization and high efficiency are expected to be realized.
Owner:QINGDAO HAIER WASHING MASCH CO LTD

Device and method for high-accuracy measurement of expansion coefficients of metal wire

The invention discloses a device and a method for high-accuracy measurement of expansion coefficients of a metal wire. The method uses a PZT oscillating mirror system to perform frequency modulation on incident light at different times, can not only modulate parameter information to be measured to a phase difference, but also modulate the parameter information to be measured to in a frequency difference for the convenience of later signal treatments; and the device consists of an interference system, a high-speed PZT oscillating mirror system, a heating system and a signal processing system. Comparing the method with other measuring methods, a multi-beam laser heterodyne measuring method for measuring the expansion coefficients of the metal wire has the advantages of high space and time resolutions, high measurement accuracy, high linearity, quick dynamic response, large measuring range and the like, and simultaneously the method has the advantages of simple structure for an experimental apparatus, low power consumption, convenient operation, high repeatability, small experimental result error, high accuracy and the like. Because experimental phenomena are obvious and experimental data is reliable, the method and the device can be widely applied in the fields of engineering designs and the like, and have very high practical values in the field of laser ultra-precision measurements.
Owner:HARBIN INST OF TECH

Method for realizing ONU (Optical Network Unit) service automatic opening on OLT (Optical Line Terminal) equipment

The invention discloses a method for realizing ONU (Optical Network Unit) service automatic opening on OLT (Optical Line Terminal) equipment, relating to the field of communication equipment of a passive optical network. The method comprises the following steps: S1. pre-configuring an ONU data resource pond on the OLT equipment, and confirming various configuration data sets necessary for hanging a plurality of ONUs under the OLT equipment; S2. in the OLT equipment, generating respective required templates aiming at different types of ONUs, and confirming the requirement on configuration data for opening the service of various types of ONUs; and S3. when each ONU is accessed to the OLT equipment, obtaining the type of the ONU by the OLT equipment, obtaining the configuration data according to the content of the ONU corresponding to the requirement template, requesting the configuration data from the ONU data resource pond, transmitting the configuration data to the ONU so as to accomplish the service opening, and recoding the allocation relationship of the configuration data. The method needs no manual engagement into the opening process; the service can be opened automatically; the artificial mistakes are prevented; the accuracy in service opening is improved; and the opening efficiency is ensured.
Owner:FENGHUO COMM SCI & TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products