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12341results about "Soil-working methods" patented technology

Multiple-antenna GNSS control system and method

A global navigation satellite sensor system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The roll angle facilitates correction of the lateral motion induced position errors resultant from motion of the antennae as the vehicle moves based on an offset to ground and the roll angle. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. The system includes gyroscopes for determining system attitude change with respect to multiple axes for integrating with GNSS-derived positioning information to determine vehicle position, velocity, rate-of-turn, attitude and other operating characteristics. A vehicle control method includes the steps of computing a position and a heading for the vehicle using GNSS positioning and a rate gyro for determining vehicle attitude, which is used for generating a steering command. Alternative aspects include multiple-antenna GNSS guidance methods for high-dynamic roll compensation, real-time kinematic (RTK) using single-frequency (L1) receivers, fixed and moving baselines between antennas, multi-position GNSS tail guidance (“breadcrumb following”) for crosstrack error correction and guiding multiple vehicles and pieces of equipment relative to each other.
Owner:HEMISPHERE GNSS

Artificial soil and method for land reclamation by aid of gold mine tailing slag backfill exploitation regions

The invention provides artificial soil and a method for land reclamation by the aid of gold mine tailing slag backfill exploitation regions. The method includes carrying out filling and compaction onthe tailing waste slag backfill exploitation regions; uniformly mixing various components of the optimally designed artificial soil with one another and ultimately covering tailing waste slag backfillsurfaces with the novel artificial soil with a certain thickness so as to effectively treat mine tailing. The artificial soil and the method have the advantages that the prepared artificial soil contains abundant nutrient components, the contents of organic matters can be increased, the gas permeability of the soil can be improved, and the artificial soil is excellent in water retention capacityand fertilizer preservation capability and suitable for growth of plants; organic thoroughly decomposed substances come from agricultural and forestry waste, are extensive in source and are easily available, accordingly, solid waste can be comprehensively utilized in a 'reduction, resource utilization and harmlessness' manner, and the artificial soil and the method conform to principles of circular economy; the land occupation problems of tailing ponds and the problems in the aspect of tasks of land reclamation of mined-out regions can be simultaneously solved by the aid of the artificial soiland the method, and the artificial soil and the method have large market spaces.
Owner:杰瑞(莱州)矿山治理有限公司
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