{
  "abstract": "An adaptive control method for offshore cranes without requiring velocity feedback, in which parameters of an offshore crane system are obtained, and a three-dimensional dynamic model of an offshore crane system is constructed based on ship's roll and pitch motions; a total energy function is constructed based on the three-dimensional dynamic model, and an energy change is described according to a change rate of a total energy of the offshore crane system; based on the three-dimensional dynamic model, auxiliary variables are constructed to replace a velocity signal of a state variable in a controller; based on an inverse trigonometric saturation function and the auxiliary variables, an adaptive controller without requiring velocity feedback is constructed; and the offshore crane system is controlled based on the adaptive controller for control to realize positioning and sway suppression. An adaptive control system is also provided.",
  "assignees": [
    "UNIV SHANDONG"
  ],
  "authors": [
    "LI YIBIN",
    "MA XIN",
    "YANG LING"
  ],
  "canonical_url": "https://opentechnical.org/p/OT-2026-000002966",
  "categories": [
    "lifting-positioning-manipulation/hoists-and-cranes"
  ],
  "extent": {
    "figures": 0,
    "paragraphs": 0,
    "words": 141
  },
  "figures": [],
  "files": [
    {
      "bytes": 10236,
      "media_type": "text/html; charset=utf-8",
      "name": "index.html",
      "sha256": "b83976c81212b27da91dd60ef0fa6e61659dcf09c35bbbc3da70b3d0bf7362c5"
    },
    {
      "bytes": 1485,
      "media_type": "text/markdown; charset=utf-8",
      "name": "publication.md",
      "sha256": "97457fbc5c51ab69ac2af2207e35a7c470a3bfce1b4e3ba5692af26ed152b8c4"
    },
    {
      "bytes": 1543,
      "media_type": "text/plain; charset=utf-8",
      "name": "publication.txt",
      "sha256": "99dd288c25773e71d8a0c13a19b3a4a3f5c234068fc4f370635b91e4222572c0"
    }
  ],
  "integrity": {
    "hash_algorithm": "sha256",
    "keys_url": "https://opentechnical.org/integrity/keys",
    "record_url": "https://opentechnical.org/p/OT-2026-000002966/integrity",
    "signature_algorithm": "Ed25519",
    "signature_file": "manifest.sig",
    "verify_url": "https://opentechnical.org/integrity/verify"
  },
  "keywords": [
    "b66c13/16",
    "b66c13/48",
    "b66c13/48",
    "b66c13/48",
    "b66c13/06",
    "b66c13/063"
  ],
  "language": "en",
  "license": {
    "name": "Creative Commons Attribution 4.0 International",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "publication_id": "OT-2026-000002966",
  "published_at": "2026-09-15T19:16:26.674186Z",
  "publisher": "Nebula Innovations Limited",
  "record_type": "record",
  "schema": "opentechnical-publication-manifest/1.0",
  "source_date": "2026-02-12",
  "source_id": "US-2026042644-A1",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US2026042644A1",
  "supersedes": null,
  "title": "Adaptive control method and system for offshore cranes without requiring velocity feedback",
  "uuid": "01a0a67f-c5b1-76eb-b5c5-34aa550ffa21"
}