How does low temperature affect the cameras?
On the tech specs it says that the operating temperature is greater than zero degrees Celsius.
I would like to set up a stationary camera (d415 or d435) outside in sweden. This means that it will be less than zero degrees during the winters.
Would this damage the camera or just affect the precision/performance? Has there been any tests on how much it affects the performance?
If it damages the camera or if the performance is very low, is there any recommendations on what you could do to keep it warm?
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Hi Aron If the Projector temperature of the camera is detected to be less than 0 degrees C then the laser safety mechanism in the camera firmware driver shuts off the laser. This does not prevent the camera from continuing to operate though, as the projector is a separate component inside the camera from the imaging sensors. The main effect will be that the quality of the depth image may decrease.
If you are able to provide a light source near the camera then the camera can alternatively use ambient light in the scene to analyze surfaces in a scene for depth detail if the projector is shut off.
The temperature of the outside environment will not match exactly with the Projector temperature though, bearing in mind the heat generated inside the camera casing during operation. As an example of the relationship between the outer casing temperature and internal temperature, Intel lab tests found that the Projector temperature should not exceed 60 degrees C if the outer casing temperature is less than 44 degrees C.
https://github.com/IntelRealSense/librealsense/issues/5209#issuecomment-563358823
You could consider keeping the camera temperature above 0 degrees C in extreme cold by creating a custom housing for the camera, like the custom casing for an underwater project in the image below.
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