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    tns1:IVA does not include all IVA rules in Camera

    When PullPointSubscription to topic "tns1:IVA" is setup with Bosch cameras,  ONVIF client only receives motion events and no Line Crossing information.

     

    Possible causes and solution(s)

     

    Symptoms

     

    When doing a pull point subscription, at the Start of the events Rule Engine/LineDetector/Crossed is missing, even though the rule is configured, and is given in the GetEventProperties response.

    The topic name space for RuleEngine/ FieldDetector/ ObjectInside works as expected.

     

    Causes

     

    As of 7.84 for RTOS, 8.50 for CPP14 and 8.45 for Inteox that is working with 2 offerings in place:

    • tns1:IVA for IVA Rules except LineCrossing, due to the definition in Onvif Interface Documentation.
    • tns1:RuleEngine for IVA Rule LineCrossing, which is part of this topic.

     

    Solution

     

    1. ONVIF Client could either subscribe both to tns1:IVA and tns1:RuleEngine topics where they would not miss anything advertised. Basically, PullPointSubscription without waiting for GetEventProperties response.

    2. ONVIF Client could request WS-Notify or SetSynchronizationPoint to trigger an event property. Then regardless of any subscription they can get those basic notifications via Basic Notification Interface of ONVIF.

    Version history
    Last update:
    ‎08-22-2024 04:30 PM
    Updated by:
    Contributors
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