Object recognition apparatus

{
  "publication_number": "US11609211B2",
  "country": "US",
  "kind": "B2",
  "title": "Object recognition apparatus",
  "abstract": "The present disclosure provides an object recognition apparatus, which includes: an actuator unit configured to contact an object and generate vibrations and transmit them through objects based on the inherent characteristic of the object; and a sensor unit connected to the actuator unit to receive the vibration and generate a voltage signal.",
  "claims": [
    "1. An object recognition apparatus, comprising: an actuator unit configured to contact an object and generate a vibration based on an inherent characteristic of the object and to transmit the vibration through the object; a sensor unit set aside from the actuator unit to receive the transmitted vibration through the object and generate a voltage signal; and a substrate film configured to fix an initial state of a piezoelectric film of the actuator unit and a piezoelectric film of the sensor unit.",
    "2. The object recognition apparatus according to claim 1, wherein the actuator unit includes the piezoelectric film, and wherein the piezoelectric film of the actuator unit includes: a piezoelectric member formed in a plate shape; and a conductive material disposed on one surface of the piezoelectric member and another surface of the piezoelectric member opposite to the one surface.",
    "3. The object recognition apparatus according to claim 2, wherein a shielding film configured to shield the piezoelectric film of the actuator unit from an external environment is installed on the piezoelectric film of the actuator unit.",
    "4. The object recognition apparatus according to claim 2, wherein one surface of the piezoelectric film of the actuator unit is grounded, a voltage source is connected to another surface of the piezoelectric film, and the voltage source applies voltage maintaining a sinusoidal difference between the one surface and the other surface of the piezoelectric film.",
    "5. The object recognition apparatus according to claim 2, wherein the sensor unit includes a piezoelectric film, and wherein the piezoelectric film of the sensor unit includes: a piezoelectric member formed in a plate shape; and a conductive material disposed on the one surface of the piezoelectric member and the other surface of the piezoelectric member.",
    "6. The object recognition apparatus according to claim 5, wherein a shielding film configured to shield the piezoelectric film of the sensor unit from an external environment is installed on the piezoelectric film of the sensor unit."
  ],
  "description_excerpt": "The present disclosure relates to an object recognition apparatus, and more particularly, to an object recognition apparatus that recognizes an object using a piezoelectric/inverse piezoelectric effect of a piezoelectric element.\n\n[Explanation of national research and development support]\n\nThis research is supervised by the ERICA Industry-Academic Cooperation Foundation of Hanyang University and supported by the robot industry core technology research and development (R&D) (Development of robot work control technology capable of gripping and manipulating various objects in daily life environment and working with tools based on multimodal recognition, No. 1415167974) of Korea Institute of Industrial Technology Evaluation, the Ministry of Trade, Republic of Korea.\n\nObject recognition belongs to a field of pattern recognition, and particularly refers to discriminating a target object based on information through visual, auditory and tactile sensors. Broadly, object recognition is being actively studied in the field of pattern recognition of artificial intelligence, especially in robotics. There is active research on a system that recognizes an object by comprehensively processing information through multiple sensors such as visual, auditory and tactile sensors.\n\nAs an example of an object recognition device, a device for analyzing a contact surface through vibration transmitted using an actuator and a sensor pair is known in the art.",
  "cpc": [
    "G01N 29/2437",
    "B25J 13/081",
    "B25J 13/087",
    "B25J 15/0009",
    "B25J 15/12",
    "B25J 19/028",
    "G01L 1/183",
    "G01N 29/11",
    "G06F 2218/12"
  ],
  "ipc": [
    "B25J 13/08",
    "G01N 29/11",
    "G01N 29/24"
  ],
  "assignees": [
    "Korea Institute of Science and Technology KIST"
  ],
  "inventors": [
    "Youngsu Cha",
    "Jae Hoon Chung",
    "Yonghwan Oh"
  ],
  "filing_date": "2020-11-12",
  "publication_date": "2023-03-21",
  "grant_date": "2023-03-21",
  "priority_date": "2020-05-25",
  "application_number": "US-202017096092-A",
  "family_id": "78608844",
  "cited_by_count": 0,
  "citations": [
    "US3609415A",
    "JPH0528653Y2",
    "JPS6454225A",
    "US6193303B1",
    "US9618497B2",
    "US20110138915A1",
    "JP2007268620A",
    "KR20150019293A",
    "US10018034B2",
    "KR20170040071A",
    "US20190178764A1",
    "US20180162556A1"
  ]
}