Apparatus for turning monitoring camera

Details Apparatus for turning monitoring camera Apparatus for turning monitoring camera

1992-09-03

1994-02-22

Shoop, Jr., William M.

Electricity: motive power systems

Motor-reversing

Periodic- or intermittent-reversing

318286, 318601, 354 81, H02P 100, B60Q 100

Patent

active

052890910

ABSTRACT:
There is disclosed a monitoring camera turning apparatus. An angle sensor continuously detects the turning angle of a turning shaft for turning a monitoring camera. Two detected angles are recorded as boundary limit angles in a recorder at the moment of generation of trigger signals. In a comparator, the recorded boundary limit angles are compared with the turning angle detected by the angle sensor at a moment. In accordance with results of this comparison, a switch device changes a direction of rotation of the turning shaft, thereby turning the monitoring camera in a monitoring range.

REFERENCES:
patent: 3742326 (1973-06-01), Okuda et al.
patent: 4110675 (1978-08-01), Wisner
patent: 4490742 (1984-12-01), Wurtzinger
patent: 4558265 (1985-12-01), Hayashida et al.
patent: 4701743 (1987-10-01), Pearlman et al.
patent: 4724371 (1988-02-01), Ito et al.
patent: 4752791 (1988-06-01), Allred
patent: 4945417 (1990-07-01), Elberbaum

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