O que é TOF?
Tempo de voo (ToF) é uma tecnologia de medição de distância que calcula quanto tempo leva para um sinal de luz - geralmente de um emissor infravermelho ou a laser - viajar para um alvo e refletir de volta. Este tempo de ida e volta é então convertido em distância com alta precisão. TOF sensores são compactos, eficiente de energia, and well-suited for a wide range of applications such as occupancy detection, tank level monitoring, object avoidance, e even 3D scanning.
Key Advantages of ToF Sensor
1.Alta precisão
ToF sensors can achieve millimeter-level precision, making them well-suited for applications requiring exact measurements, such as detecting inventory gaps, desk presence, or material levels.
2.Fast Response Time
With response speeds in the millisecond range, ToF enables real-time detection and dynamic interaction, even for fast-moving objects or environments requiring instant feedback.
3.Non-Contact Measurement
ToF offers fully contactless operation—no need for physical interaction with the object. This makes it ideal for hygienic, sealed, or hard-to-reach environments.
4.Reliable in All Lighting Conditions
ToF sensors operate effectively in both bright and dark environments, as their performance is based on light travel time rather than ambient illumination—unlike many vision-based systems.
ToF vs. Other Distance Sensing Technologies
| Tecnologia | Princípio de trabalho | Precisão | Anti-Interference | Custo | Características |
|---|---|---|---|---|---|
| ToF | Measures light’s time of flight | Alto | Médio | Low–Medium | Rápido, compactar, non-contact sensing |
| Ultrasound | Measures time of sound reflection | Médio | Prone to wind/noise | Baixo | Inexpensive, best for large or coarse object detection |
| LIDAR | Laser scan + ToF or triangulation | Very High | Alto | Alto | Extremely precise but costly and complex |
| Structured Light / Visão | Depth from image deformation | Alto | Affected by lighting | Alto | Common in 3D scanning, facial recognition, needs clear view |
Why Choose ToF?
ToF strikes the balance between accuracy, velocidade, cost-efficiency, and adaptability. Unlike cameras or ultrasonic sensors, it works reliably across various lighting and spatial environments without compromising privacy or requiring complex processing. Whether you’re designing a smart office, monitoring warehouse inventory, or enabling tank-level sensing, ToF is a smart, scalable option for precise spatial awareness.
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