MRDVS Tech Knowledge HubToF camera
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Mar 5, 2025
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iToF Technology in Mobile Robotics: Challenges and Solutions
iToF technology measures the distance to a target object by emitting a modulated light signal (e.g., infrared light or laser) and then detecting the time of flight of the photons that are reflected back. iToF is centered on a calculation based on the phase difference of the modulated waveforms. iToF utilizes the phase difference between the reflected and emitted light signals to extrapolate the distance between the target object and the sensor.
Thanks to its excellent performance in terms of resistance to ambient light interference, high ranging accuracy and long ranging distance, iToF technology has been widely used in the field of mobile robotics:
- Navigation: By generating accurate depth maps with iToF sensors, robots can autonomously navigate according to the surrounding environment.
- Obstacle avoidance: The iToF sensor helps the robot to recognize and avoid obstacles during movement by quickly generating depth data.
- 3D Environment Sensing: iToF sensors are able to capture high-precision 3D information to assist robots in performing complex tasks.
However, with the increase in the number of mobile robots within the same environment and the need for them to work in concert with each other, iToF technology still faces a series of notable challenges in practical applications, including Multi-device Interference (MDI), ambient light interference, glare effects, and multipath effects.
The following section discusses in detail the main challenges faced by iToF technology in mobile robot applications and their solutions.
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