METHOD FOR SELF-TESTING NOTIFICATION APPLIANCES IN ALARM SYSTEMS
First Claim
1. A method for self-testing notification appliances in an alarm system, the method comprising:
- measuring and recording an initial output level of a notification feature of a notification appliance at a first time;
measuring a test output level of the notification feature at a second time after the first time;
comparing the test output level to a threshold output level that is derived from the initial output level;
recording a pass result for the notification appliance if the test output level exceeds the threshold output level; and
recording a fail result for the notification appliance if the test output level does not exceed the threshold output level.
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Abstract
A method for self-testing notification appliances in an alarm system by determining whether the performance of the notification appliances has degraded over time. The method may include the steps of measuring and recording initial output levels of notification features of the notification appliances at a first time, measuring test output levels of the notification features at a second time after the first time, and comparing the test output levels to respective threshold output levels that are derived from the initial output levels. The method may further include recording a pass result for notification appliances whose notification features produced test output levels that exceeded the respective threshold output levels, and recording a fail result for notification appliances whose notification features produced test output levels that did not exceed the respective threshold output levels.
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Citations
20 Claims
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1. A method for self-testing notification appliances in an alarm system, the method comprising:
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measuring and recording an initial output level of a notification feature of a notification appliance at a first time; measuring a test output level of the notification feature at a second time after the first time; comparing the test output level to a threshold output level that is derived from the initial output level; recording a pass result for the notification appliance if the test output level exceeds the threshold output level; and recording a fail result for the notification appliance if the test output level does not exceed the threshold output level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. A method for determining whether the performance of notification appliances in an alarm system has degraded over time, the method comprising measuring and recording initial output levels of notification features of the notification appliances at a first time.
Specification