EAS EPC Bulk

EPC-BULK alarm configuration

AdvanNet can be configured to trigger alarms when several products are detected in a given time period.

Bulk settings

• • Bulk tag number: the minimum number of unique tags to be read in bulk to trigger an alarm. Common values are between 3 and 7.

• • Bulk window (ms): the time window, in milliseconds, where bulk tags are read. Common values are between 1500 ms and 5000 ms.

For example, the settings 3 and 1500 ms would only generate an alarm when 3 or more unique tags are read in a period of time of 1500 ms or less.

Replenishment detection

Under some scenario it is convenient to filter out alarms generated during replenishment.

The following options allow to detect replenishment conditions. When such conditions are detected, the system enters into temporarymute mode.

Mute mode will disable any ALARM events, this will result in:

• • Configured actions will not work: GPO, speaker and buzzer actions

  • No alarm events will be notified through 3177 socket or AdvanCloud.

Replenishment conditions can be reached from two different approaches:

• 1. The system throughput (total tags/s and unique tags/s) reaches some threshold.

  2. The system detects high read spikes. These are modelled as bulk reads with different levels than the Bulk settings.

How the replenishment detection works:

• 1. If at least one throughtput (tags/s) option is configured (value larger than 0), whenever that value is larger than the threshold, the system will enter the temporary mute mode. The duration of the mode is controller by Alarm mute (m) option.

  2. If both throughtput (tags/s) options are configured, whenever both values are larger than the thresholds, the system will enter the temporary mute mode. The duration of the mode is controller by Alarm mute (m) option.

  3. If the Tag number is larger than 0, whenever the system reads Tag Number or more tags in a time window of Time window (ms) or less, the system will enter the temporary mute mode. The duration of the mode is controller by Alarm mute (m) option.

Replenishment options

Throughput thresholds

• • Tags/s threshold: total tag throughput threshold. Whenever the tag throughput is higher than this value the system is eligible to enter mute mode. Common values are between 2 and 5.

• • Unique tags/s threshold: unique tag throughput threshold. Whenever the unique tag throughput is higher than this value the system is eligible to enter mute mode. Tags are considered to be unique if they have not been read in the latest Time Window (ms) time. Common values are between 1 and 3

The system will only enter mute mode when all defined throughputs are above the thresholds.

For example, the settings -1 and 2 will make the system enters the mute mode if the unique tags/s is larger than 2.

The settings 4 and 2 will make the system enters the mute mode if the total tags/s is larger than 4 AND unique tags/s is larger than 2.

Massive reads

Tag number

Common values are between 10 and 15

• • Time window (ms): the time window, in milliseconds, where bulk tags are read.

Common values are between 5000 ms and 15000 ms

• • Alarm mute (m): the time, in minutes, for the mute mode after a replenishment condition.

For example, the settings 15, 10000 ms and 30 will make the system enters the mute mode for 30 minutes if 15 or more unique tags are detected in a time window of 10.000 ms or less.

Whenever a replenishment condition is reached, and the system is already in mute mode, the mute period is updated from the time of the last condition detected.