US4566032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visually guided vehicle
Assignee: Nippon Yusoki Co Ltd
•
Filing: 1983-11-10
•
Granted: 1986-01-21
•
Expires: 2003-11-10
Abstract
Abstract An optically guided, unmanned, load transporting vehicle, such as a fork-lift truck, includes an electric camera, such as an industrial television camera, and a controller for controlling the automatic running apparatus of the vehicle. Two reflectors are disposed in front of the camera so that the camera receives light from remote and near visual fields. A guide belt laid on floor for guiding the vehicle is formed with various bar codes representing halt, acceleration, deceleration, etc.
Inventors
- 👤 Shigeru Hirooka
- 👤 Shuichi Maeda
- 👤 Shigehiro Yamamoto
- 👤 Toshihiko Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:58
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/063; B66F9/075; B66F9/0755; G; G05; G05D; G05D1/00; G05D1/02; G05D1/021; G05D1/0231; G05D1/0244; G05D1/0246
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
101 words
An unmanned load transporting vehicle comprising: a guide belt laid on a floor on which said vehicle is run, said guide belt comprising a plurality of reflecting segments comprising a plurality of bar codes representing corresponding instructions including a halt instruction, a deceleration instruction and turning instructions; a video camera installed on an upper portion of the vehicle, said camera being directed to receive light reflected from said guide belt; controller means installed on the body of the vehicle receiving an output signal from said camera for controlling running of said vehicle in response to said output signal from said camera.
Claim 2
Dependent Claim
101 words
An unmanned load transporting vehicle comprising: a guide belt laid on a floor on which said vehicle is run, said guide belt comprising a plurality of reflecting segments comprising a plurality of bar codes representing corresponding instructions including a halt instruction, a deceleration instruction and turning instructions; a video camera installed on an upper portion of the vehicle, said camera being directed to receive light reflected from said guide belt; controller means installed on the body of the vehicle receiving an output signal from said camera for controlling running of said vehicle in response to said output signal from said camera.
Claim 3
Dependent Claim
19 words
The unmanned load transporting vehicle as set forth in claim 1, wherein said camera comprises an industrial television camera.
Claim 4
Dependent Claim
36 words
The unmanned load transporting vehicle as set forth in claim 2, wherein said camera comprises a reflector for directing portions of incident light, such that said camera receives reflected light from remote and near visual fields.
Claim 5
Dependent Claim
65 words
The unmanned load transporting vehicle as set forth in claim 2, further comprising: a first reflector for obtaining near visual field information; and a second reflector for transmitting the near visual field information obtained by the first reflector to said camera, said first and second reflectors being disposed in front of said camera and at predetermined angles relative to a central axis of said camera.
Claim 6
Dependent Claim
121 words
An unmanned load transporting vehicle comprising: a guide belt laid on a floor on which said vehicle is run, said guide belt comprising a plurality of bar codes representing corresponding instructions including a halt instruction, a deceleration instruction and turning instructions; camera means for detecting said reflecting segments at a first distance from said vehicle, including means for detecting said reflecting segments at a second distance from said vehicle; means for recognizing said corresponding instructions upon detection of said reflective segments at said first distance, and storing said instructions; and means for recognizing said corresponding instructions upon detection of said reflective segments at said second distance, and acting in accordance with stored instructions, whereby reaction speed of said vehicle is increased.
Claim 7
Dependent Claim
121 words
An unmanned load transporting vehicle comprising: a guide belt laid on a floor on which said vehicle is run, said guide belt comprising a plurality of bar codes representing corresponding instructions including a halt instruction, a deceleration instruction and turning instructions; camera means for detecting said reflecting segments at a first distance from said vehicle, including means for detecting said reflecting segments at a second distance from said vehicle; means for recognizing said corresponding instructions upon detection of said reflective segments at said first distance, and storing said instructions; and means for recognizing said corresponding instructions upon detection of said reflective segments at said second distance, and acting in accordance with stored instructions, whereby reaction speed of said vehicle is increased.
References Cited (Backward Citations)
US3612764A
Cited
US4278142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |