METHOD AND APPARATUS FOR THE INSPECTION, MAINTENANCE AND TESTING OF ALARM SAFETY SYSTEMS
First Claim
1. A safety system comprising input devices for ambient conditions and alarm notification devices and safety output activation devices, which facilitates system testing:
- an alarm panel for receiving trigger inputs from at least one of said input devices and operative to generate output signals communicated to said alarm notification and safety activation output devices for modifying the operational mode of at least one alarm notification device and/or at least one safety activation device;
a temporary disconnect circuit comprising a timer that upon activation precludes the output signals from activating the alarm panel from being communicated to said at least one alarm notification device and/or at least one safety activation device for a predetermined period of time, and, after expiration of the predetermined period, restores communication between the outputs of the alarm panel and said at least one alarm notification device and/or at least one safety activation device; and
a recorder for the number of trigger outputs generated by said input devices during the period of activation of said timer at the inputs to said disconnected output device(s).
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Accused Products
Abstract
A safety system receives inputs from safety related input devices such as smoke detectors and the like and provides triggering outputs to notification appliances such as bells and the like and/or safety functions such as door releases. To facilitate testing of the input devices the system incorporates a timer operative to disconnect the output devices for a period of time during which testing may be achieved, automatically reconnects the output devices at the end of the time, records the number of triggering outputs received at the outputs during that period.
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Citations
12 Claims
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1. A safety system comprising input devices for ambient conditions and alarm notification devices and safety output activation devices, which facilitates system testing:
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an alarm panel for receiving trigger inputs from at least one of said input devices and operative to generate output signals communicated to said alarm notification and safety activation output devices for modifying the operational mode of at least one alarm notification device and/or at least one safety activation device; a temporary disconnect circuit comprising a timer that upon activation precludes the output signals from activating the alarm panel from being communicated to said at least one alarm notification device and/or at least one safety activation device for a predetermined period of time, and, after expiration of the predetermined period, restores communication between the outputs of the alarm panel and said at least one alarm notification device and/or at least one safety activation device; and a recorder for the number of trigger outputs generated by said input devices during the period of activation of said timer at the inputs to said disconnected output device(s). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A process for testing a safety system comprising input devices for ambient conditions which generate triggering outputs through a communication path to alarm notification and/or safety activation output devices when potentially dangerous conditions are detected, said process comprising:
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disconnecting the communication path at the output devices for a predetermined time; activating said sensors to generate triggering outputs during the time the said communication path is disconnected from the output devices; and detecting said triggering outputs occurring during the time the communication path is disconnected from the output devices at the inputs to said output devices to test the integrity of said system from the sensors to the inputs to the output devices. - View Dependent Claims (10, 11, 12)
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Specification