发明名称 |
METHOD AND SYSTEM FOR LOW SPEED CONTROL OF A VIDEO SURVEILLANCE SYSTEM MOTOR |
摘要 |
<p>The present invention provides a method and system that improve the low-speed control stability of a video camera assembly, including a video camera, a tilt motor operable to tilt the video camera and a pan motor operable to pan the video camera. A first encoder is coupled to one of the tilt motor and pan motor. The first encoder outputs a plurality of signals having corresponding signal edges, based on a rotation speed of the one of the tilt motor and pan motor. A first controller is in electrical communication with the first encoder. The first controller determines a speed of the one of the tilt motor and pan motor at least in part by correlating a time period between detection of the first edge and detection of the second edge to the speed of the at least one tilt motor and pan motor.</p> |
申请公布号 |
WO2008073278(A2) |
申请公布日期 |
2008.06.19 |
申请号 |
WO2007US25018 |
申请日期 |
2007.12.06 |
申请人 |
SENSORMATIC ELECTRONICS CORPORATION |
发明人 |
BERKEY, THOMAS, F.;DEJESUS, CARLOS |
分类号 |
F16M11/18 |
主分类号 |
F16M11/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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