Apparatus for turning monitoring camera
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorJyoji Wada
Life of this patent
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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.
Claims2
Apparatus for turning a monitoring camera comprising:
- means for mounting said monitoring camera, said mounting means adapted to be turned;
- means for detecting a turning angle of said mounting means;
- means for recording therein a pair of turning angles detected by said detecting means as monitoring boundary limit angles, wherein said recording means includes a first recorder for recording not less than three angles detected by said detecting means, and a second recorder for recording not less than two combinations of the angles, each combination consisting of two angles selected from said angles recorded in said first recorder;
- means for comparing said monitoring boundary limit angles recorded in said recording means with a turning angle detected by said detecting means at a moment;
- and
- means for changing a direction of turning of said mounting means in accordance with results of comparison by said comparing means.
Dependencies are inferred from the claim text.