intel d410 depth sensor - laser power control
we are using intel realsense D410 module for custom use case. 02 sensors are connected to linux based embedded single board computer on USB port. We are using intel realsense2 SDK API's to interface with our C++ based application. But when we try to control laser power through API. SDK throws error: failed to set power state.
Is there any other method to lower the laser power. basically we are trying to reduce power consumption on USB port.
Below is the firmware option:
Using device 0, an Intel RealSense D410
Firmware version: 05.12.07.150
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Hi Surajkumar The Failed to set power state error suggests a problem with accessing the camera, either because it was already being used (i.e in a 'busy' state) or it is not being detected (perhaps because of insufficient power on the USB port). The latter possibility of a USB power related issue is more likely.
Can you confirm please whether you are using one or two D410 modules, as you mention '02 sensors'. "Low power" small sized single board computers may have difficulty accessing two cameras simultaneously.
Power related issues may also occur with a single camera if the camera is connected to a USB OTG micro-sized USB port on the board via an adaptor instead of a full-sized port.
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With Raspberry Pi boards, only one RealSense camera per Pi board is usually used. Handling two cameras simultaneously may require a larger board, such as the Up Squared which can work with two cameras.
An example of the principle of one camera to one Pi is RealSense's ethernet networking system in the image below.
Have you tried accessing the two cameras with a multiple camera application such as the RealSense SDK's rs-multicam example program in order to determine whether the problem is with opening separate pipelines for the two cameras?
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If you are detecting the cameras automatically instead of manually specifying separate pipelines and serial numbers for each of the two cameras then I would recommend not attempting to alter the Laser Power setting if the two cameras are working normally. RealSense 400 Series cameras are highly power-efficient by default, and reducing the Laser Power could have a negative effect on the quality of the depth image if you are streaming depth.
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