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Patent Searching and Data


Title:
OPTICAL REFLECTING CARD IDENTIFYING DEVICE
Document Type and Number:
Japanese Patent JPH01244589
Kind Code:
A
Abstract:

PURPOSE: To automate the control of the entrance and exit of workers to enter and leave from a specific control zone by projecting light from a light irradiation identifying means on an optical reflecting card means, and detecting reflected beams from the optical reflecting card means with a light irradiation identifying means.

CONSTITUTION: An individual identifying nameplate 1 consisting of a data generating circuit 1b to generate an individual identifying data signal by means of power from a solar battery 1a to receive irradiation beams 3 and to generate electricity, a liquid crystal shutter plate 1c to open/close the transmitting beams based on the identifying data signal, and a light reflecting plate 1d is stuck to the breast, etc., of the worker to enter and leave from the specific control zone. The light is projected from a light irradiation identifying unit 2 on the individual identifying nameplate 1, reflected beams 4 are detected by the light irradiation identifying unit 2, and the individual identifying data signal is identified. Thus, the entrance/exit control such as the collating check of a entering/ leaving person and the recording control of the individual identifying data number can be automated.


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Inventors:
FUJIMOTO RYOKO
Application Number:
JP27500687A
Publication Date:
September 28, 1989
Filing Date:
October 29, 1987
Export Citation:
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Assignee:
NIPPON SCIENCE KK
International Classes:
G06K17/00; G06T7/00; (IPC1-7): G06K17/00