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DToF Technology in Robot Vacuum Cleaners?


In the fast-paced world of technology, innovation knows no bounds, and dToF (Direct Time-of-Flight) technology is at the forefront of the latest breakthroughs. From NASA's Mars landing missions to the latest robot vacuum cleaners, dToF has become a hot topic of discussion. Among the industries benefiting from this cutting-edge technology is the cleaning sector, where robot vacuums equipped with dToF laser sensors are changing the game and transforming the way people clean their homes. 

What is dToF?

dToF stands for Direct Time-of-flight and this technology works on a simple yet powerful principle: emitting a light pulse from a source and measuring the time it takes for the reflection to return after hitting an object. With the speed of light being constant, the distance between the light source and the object can be accurately calculated. This information allows robot vacuums to create 3D maps of their surroundings, paving the way for more efficient and intelligent navigation. Its accuracy can be exact as 2mm, which means it's a super navigator for a robot cleaner. 

DToF vs. LDS: What Are the Differences?


LDS, also called Laser Distance Sensor is a technology that has been used in the robot cleaners. Similar to dToF, it involves the use of a laser distance sensor (LDS) to determine the device's position in its environment and to create a map of the surroundings. LDS generally uses triangulation laser radar technology, 360° scanning, with a wider range; thereby making it lower cost and relatively mature technology.


However, LDS is prone to being affected by ambient light, and not accurate in detecting highly reflective objects (such as mirrors, glass windows, etc.). Additionally, due to the high-speed rotation during operation, it is more susceptible to damage.  And another place that some robot cleaner manufacturers do not consider LDS is that the body of an LDS machine is usually taller than 10cm, making it difficult to clean under sofas or furniture.


Dtof on the other hand does not have these drawbacks except that it is commonly 220° scanning. Dtof (Direct Time-of-Flight) single-point laser technology offers longer ranging distances and higher accuracy compared to LDS. And it is also unaffected by ambient light, enabling it to become a perfect tech used in the automatic robot clearning device. Moreover, dToF boasts superior object detection capabilities. It can recognize thin obstacles, like table and chair legs, with remarkable accuracy. This enables robot vacuums to navigate around furniture with grace and intelligence, reducing the risk of collisions and ensuring a seamless cleaning experience.


Spair M50: A Pioneer in dToF Integration

When it comes to embracing dToF technology, Spair is leading the charge. After 3 years of R&D, Spair has launched the first automatic base station robot vacuum with Dtof navigation, attracted a large number of brand customers. The Spair M50 Pro, showcases the advanced mapping and navigation system, which utilizes dToF laser ranging technology to improve planning coverage and accuracy and can thereby reshaping the home enviroment while restoring home 3D map. 

However, Spair M50 has further developed dToF to make. the scanning ability the same as the LDS. This marked a major milestone in the cleaning robot industry, introducing advanced detection technology that was previously reserved for astronautics.

Embracing Sustainability with dToF


In an era where sustainability is paramount, dToF technology plays a pivotal role in promoting eco-friendly practices. Robot vacuums equipped with dToF sensors significantly reduce energy consumption, contributing to a greener and more sustainable future.


The integration of dToF technology has revolutionized the robot vacuum industry, offering intelligent navigation, enhanced object recognition, and improved energy efficiency. By partnering with Spair, the manufacturer behind robot vacuums, one can deliver cutting-edge cleaning solutions to customers. Embrace the dToF revolution and be part of the future of cleaning technology with us. 

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