IDS peak 2.10.0 / uEye+ firmware 3.34
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Most IDS Vision cameras can generate event notifications to inform a host application about the occurrence of a specific event.
Typical events
Type |
Event names |
|---|---|
Acquisition related events |
ExposureStart ExposureEnd FrameDropped MissedTriggerExposure |
I/O status events |
Line0RisingEdge, Line0FallingEdge Line1RisingEdge, Line1FallingEdge Line2RisingEdge, Line2FallingEdge Line3RisingEdge, Line3FallingEdge Line4RisingEdge, Line4FallingEdge Line5RisingEdge, Line5FallingEdge Line6RisingEdge, Line6FallingEdge |
Others |
Temperature PtpMasterSyncLost EventDropped Test |
Special events in line scan operation mode |
FrameStart MissedTriggerLine |
Error events |
Error Critical Error |
Configuration: Enable event notification
Select the event that you want use and enable its notification.
EventSelector = Temperature;
EventNotification = On;
Enable only the events that you intend to use in your application. Events contribute to the transmitted bandwidth.
•USB: If events are not fetched, the event queue fills and events might be lost.
•GigE: If events are not fetched, they are lost.
|
GigE: Events, that are lost, are not re-transmitted. This means, that there is no guaranteed transmission of events over the link. |
Configuration: Querying event properties
Events need implementation of event handling in your application. See Events.
Nevertheless, you can gather information on the last occurrence from the camera's RemoteDevice node map.
Each event creates a sub-category of the naming pattern Event<EventName>Data. For the temperature event this is EventTemperatureData.
The event ID is stored in the parameter Event<EventName>. The timestamp of the last occurence in Event<EventName>Timestamp. For the temperature event the ID is stored in EventTemperature and the timestamp of the last occurence in EventTemperatureTimestamp.
temperatureEventId = EventTemperature.Value;
temperatureEventTimestamp = EventTemperatureTimestamp.Value;
Some events have additional data, e.g. the temperature event also sends the temperature value.
temperature = EventTemperatureValue.Value;
Other events send the frame ID of their occurence (Event<EventName>FrameID), e.g. EventExposureStart and EventExposureEnd, EventFrameDropped or EventMissedTriggerExposure.
frameId = EventExposureStartFrameID.Value;
Alternatives and variants: Testing event reception
You can test if your application receives and handles camera events correctly using the test event.
TestEventGenerate();
The camera sends out a test event instantly with the according timestamp.
testEventId = EventTest.Value;
testEventTimestamp = EventTestTimestamp.Value;
