Introduction
The Thermal settings tab becomes available for Siqura cameras (siqura driver) with the capability to retrieve the temperature information. This applies to the Siqura Thermal range cameras with radiometric temperature measurement capabilities (not all thermal cameras support this and require firmware version over 3.40). If the camera supports the temperature measurement VDG Sense will be able to get the temperature information and generate a Temperature event.
Events:
TempLow->Value: Max=[highest temperatur in FOV], Min=[lowest temperature in FOV], Avg=[average temperature in FOV]
TempHigh->Value: Max=[highest temperatur in FOV], Min=[lowest temperature in FOV], Avg=[average temperature in FOV]
Database access
The temperature events are stored in a special database so external programs can access to the information for further analysis or graphical representation of temperature trends.
Please contact our support department for access to this database.
Setup
Enabling Thermal events
In the Profiles->Thermal tab all settings related to the thermal events can be configured.
Activate Thermal Detection
To activate or deactive the polling of the temperature
Thermal polling type
Continuous polling: This will contuously poll the camera to get the temperature measurement. See below when events are generated.
Macro: Use macro action 'Fetch and store Thermal' to get temperature measrement.See below when events are generated.
Minimum Threshold
After each temperature measuremen the 'Max' value in the Temp event is checked. It needs to go below the minimum threshold to trigger the TempLow event. It depends on the mode of operation when new events are generated.
Maximum Threshold
After each temperature measuremen the 'Max' value in the Temp event is checked. It needs to go above the maximum threshold to trigger the TempHigh event. It depends on the mode of operation when new events are generated.
Temperatute Polling Interval
The interval in seconds of temperature measurements when 'Continuous polling' is used.
Event generation for continuous polling:
If the Max temperature is higher than the 'Maximum threshold', the event TempHigh is triggered. If the Max temperature drops below the 'Maximum threshold' but stays above the 'Minimum threshold' the event TempHigh will not be triggered if the max temperature again is higher than the 'Maximum threshold'. So the temperature always first needs to drop below the 'Minimum threshold' before it triggers an TempHigh event again.
Event generation for macro:
Once a temperature measurement is done and the Max value of the measurement is above the 'Maximum threshold' the TempHigh event is triggered.
Once a temperature measurement is done and the Max value of the measurement is below the 'Minimum threshold' the TempLow event is triggered.
TempHigh does not need to go below the 'Minimum threshold' to trigger a new event.
Macros
The temperature measurements can be used to trigger a server or viewer macro. For this purpose the TempHigh and TempLow events are available in the macro menus.
Example 1:
Play audio sound if the Max value of the TempHigh signal is higher than 100 degrees:
Example 2:
Fetch thermal information based on macro in combination with a thermal PTZ camera. The PresetOn event can be used to fetch the thermal information if for instance the PTZ camera is running in a PTZ tour.
