Abstract:
A dynamic arresting mechanism for preventing injury from the torqueing of a rotating tool body. The mechanism including an inertia switch to automatically detect the rotation of the tool body and selectively initiate a dynamic arresting mechanism sequence configured to arrest the motor. The mechanism further including a first relay in communication with the inertia switch, an arresting mechanism configured to brake the rotation of the motor, and a delay mechanism configured to cut off power to the arresting mechanism and motor after a predetermined amount of time has elapsed. The mechanism is reset upon release of the trigger used to operate the rotating tool.
Abstract:
The present invention provides a video surveillance apparatus and method of operation for a system having at least one predefined setting. A first parameter corresponding to an alignment of a video camera assembly with a visual target is stored. A second parameter corresponding to the alignment of a modified video camera assembly with the visual target is obtained. A difference between the first and second parameters is determined. The difference is applied to at least one of the predefined settings.
Abstract:
The present invention provides a video surveillance apparatus and method of operation for a system having at least one predefined setting. A first parameter corresponding to an alignment of a video camera assembly with a visual target is stored. A second parameter corresponding to the alignment of a modified video camera assembly with the visual target is obtained. A difference between the first and second parameters is determined. The difference is applied to at least one of the predefined settings.
Abstract:
The present invention provides a system and method for controlling a motor in a video surveillance system including a video camera, a tilt motor operable to move the video camera in a tilt direction, a pan motor operable to move the video camera in a pan direction, and a controller in electrical communication with the tilt and pan motors. The controller assesses an operational condition of the video surveillance system and, if the assessment is successful, actuates at least one of the tilt motor and pan motor to move the video camera along a first predetermined motion pattern. In addition, if the assessment is unsuccessful, the controller actuates at least one of the tilt motor and pan motor to move the video camera along a second predetermined motion pattern.
Abstract:
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.
Abstract:
The present invention provides a video surveillance system, having a video camera; a motor operable to move the video camera; and a processor monitoring a value of a signal provided to the motor, the processor terminating the signal to the motor when the monitored signal value exceeds a predetermined value for a predetermined period of time. A network may be coupled to the processor for communication of the signal termination. The processor may reinitiate a signal transmission to the motor sufficient to maintain a position of the motor after a predetermined period of time, and the processor may monitor the signal transmission and adjust at least one of a zoom setting and focus setting of the video camera based at least in part on the monitored signal.
Abstract:
Zum Ansteuern eines eine Ansprechverzögerung (Δt anspr ) aufweisenden Steuerelements (4) einer Antriebseinrichtung (1) zum Antreiben eines zwischen zwei Endstellungen bewegbaren Objekts wird ein von der Antriebseinrichtung (1) beeinflusster Parameter (F akt ) überwacht und mit einem vorgegebenen Schwellenwert (F Th ) verglichen, bei dessen Erreichen ein Steuersignal an das Steuerelement (4) abgegeben wird; dabei wird ein vor dem Erreichen des Schwellenwerts (F Th ) zu erreichender Vor-Schwellenwert (F v ) definiert, bei dessen Erreichen ein Vor-Steuersignal an das Steuerelement (4) zu dessen vorbereitender Ansteuerung abgegeben wird, und danach wird auf das Erreichen des tatsächlichen Schwellenwerts (F Th ) weiter überwacht, wobei beim Erreichen des tatsächlichen Schwellenwerts (F Th ) die Steuerelement-Ansteuerung beibehalten wird, wogegen dann, wenn der tatsächliche Schwellenwert (F Th ) nicht erreicht wird, die Steuerelement-Ansteuerung wieder zurückgenommen wird.
Abstract:
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.