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The micro TOF ranging sensor is a sensor that uses the Time of Flight (TOF) principle to measure the distance between the object and the sensor.
TOF ranging sensors generally consist of laser transmitters, receivers and signal processing circuits. Its working principle is that the laser transmitter emits a short pulse laser beam towards the target object. After the beam hits the target object, it will be reflected or scattered by the surface of the object. The reflected beam is picked up by the receiver and the time difference between the beam traveling from the transmitter to the receiver is measured. Based on the propagation speed and time difference of light in vacuum, the round-trip time of light can be calculated, thereby deriving the distance between the target object and the sensor.
Micro TOF ranging sensors are usually small in size and have low power consumption, making them suitable for embedding into various small devices. It has high ranging accuracy and can perform precise measurements within a range of several centimeters to several meters. Micro TOF ranging sensors are widely used in presence detection. For example, in the front camera of a mobile phone, the TOF ranging sensor can realize facial recognition and face unlocking functions. It can also be used for auxiliary focus on the rear camera of a mobile phone, providing faster and more accurate focusing. In addition, in sweeping robots, TOF ranging sensors can be used to avoid collisions with obstacles and create maps for intelligent cleaning path planning.
TOF ranging sensors are also widely used in ranging. It can measure the distance between objects and sensors for precise positioning, tracking and obstacle avoidance. In smart lamps and smart bathroom products, TOF ranging sensors can be used to control the brightness and color temperature of lights, automatically switch faucets and soap dispensers, etc. In applications such as robots and drones, TOF ranging sensors can be used to detect and avoid obstacles to improve autonomous navigation capabilities.
In addition, TOF ranging sensors can also be used in energy saving fields. For example, in projectors, TOF ranging sensors can be used to assist focusing and improve the clarity of projected images, thus saving energy. In smart toilets, the TOF ranging sensor can sense the user's approach and automatically start the flushing function to save water.
In general, the application range of micro TOF ranging sensors is very wide. Therefore, it is widely used in various fields, such as smartphones, home appliances, robots, drones, etc., to achieve distance measurement, attitude recognition, obstacle recognition, etc. Object detection and obstacle avoidance functions.
