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A typical use case for this logic is to ensure the performance of the radar is optimal at all times. By using a fixed target in a know known location, you can place an area over this target and ensure the Invert Break Logic is active. If the performance of the radar drops to such an extent that it can no longer detect the fixed target an alarm will be raised.
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Break Allowance: This is the detection count that must be matched or exceed exceeded for an alarm to be triggered for the area. For example, if the break count is 2 then the alarm will only be raised if an object is detected in the area on two consecutive scans. The break count is incremented on each radar scan if the detection conditions are met. This provides an effective way of ensuring the target is present and helps eliminate false alarms. This works in reverse if the Invert Break Logic is enabled, in that the break count will increase for every scan where an object is not seen in the area.
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Allowance Decrement: This value provides the speed at which the break count starts to decrease when there are no detections. Adjusting this value will effect the speed at which an area will go into an alarm or re-alarm. For example, if the break allowance is 16 and the decrement is also 16, then it will take 16 consecutive hits on a target to generate an alarm, but as soon as a scan is missed this will value be decremented by 16 and effectively reset.
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