Set Thermography Rule - HIKVISION DS-2TXS2628-3P/QA/GLT/CH30S80 Manual

3.3.4 Set Thermography Rule

Steps
1. Customize the rule name.
2. Select the rule type to Point, Line, or Area. Then draw a point, line, or area on the interface
where the position to be measured.
Point
Line
Area
3. Configure the temperature measurement parameters.
Emissivity
Set the emissivity of the target. The emissivity of the surface of a material is its effectiveness
in emitting energy as thermal radiation. Different objects have different emissivity. Refer to
Common Material Emissivity Reference to search for the target emissivity.
Distance
The distance between the target and the device.
Reflective Temperature
If there is any object with high emissivity in the scene, check and set the reflective
temperature to correct the temperature. The reflective temperature should be set the same
as the temperature of the high emissivity object.
4. Click and set the Alarm Rule.
Alarm Temperature and Pre-Alarm Temperature
Set the alarm temperature and pre-alarm temperature. E.g., select Alarm Rule as Above
(Average Temperature), set the Pre-Alarm Temperature to 50 °C, and set the Alarm
Temperature to 55 °C. The device pre-alarms when its average temperature is higher than
50 °C and alarms when its average temperature is higher than 55 °C.
Filtering Time
It refers to the duration time after the target temperature reaches or exceeds the pre-alarm
temperature/alarm temperature.
Tolerance Temperature
Set the tolerance temperature to prevent the constant temperature change to affect the
alarm. E.g., set tolerance temperature as 3°C, set alarm temperature as 55°C, and set pre-
alarm temperature as 50°C. The device sends pre-alarm when its temperature reaches 50°C
and it alarms when its temperature reaches 55°C and only when the device temperature is
lower than 52°C will the alarm be cancelled.
Pre-Alarm Output and Alarm Output
Thermal & Optical Bi-spectrum Network Camera
Please refer to Point Thermographyfor detailed configuration.
Please refer to Line Thermographyfor detailed configuration.
Please refer to Area Thermographyfor detailed configuration.
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