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Intro

We have tried to design a range sensor, which is useful for a number of purposes including:

• Accurate distance detection with a matrix field of view, which means it will analyze the objects in the area.
• Body counting function, when mounted on top of the door or on the side of the door, it is possible to recognize whether the target reaches the right side from the left or vice versa by the left and right area cuts of the sensor. From there a counter is driven to count the increase or decrease of the target.However, note that this feature is not overly dependent on use.

The DS1 is a tof's sensor that has the property of using an emitted laser to determine the distance of an item in front of it. In the right environment, this distance is usually around 2m. It also has another interesting feature, partition detection, which distinguishes whether the target is going from the left to the right, or vice versa. This feature is officially used to describe a kind of body counter, which means that if you install this device sensor above the top of the door, the number will be increased by one when someone passes by. This would also be useful mounted on the side of the door, you can imagine that the light is radiated out into two areas and it detects from which direction it passes. But due to the inherent problems of this algorithm, this cannot be seen as an extremely accurate way, if two people pass by together and one is holding a child, that situation could result in an incorrect count, in which case the sensor provides settings to manually correct the count. But as some other applications, such as stores and so on counting the number of people entering, then it is very informative. We know that some people will be used in the room to detect whether someone has entered, so as to turn on the lights and other automated operations, which can also be regarded as a role. The most common role may be the distance detection, it can be used to detect the front is close to the object, through the safety of the laser reflection, it can distinguish between the target current distance from the sensor distance, which can be used as some of the proximity sensor. When a person is approaching triggers a certain condition, here it becomes possible.

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Distance Sensor DS1 For Home Assistant By Screek (ESPHome)

The sensor itself (VL53L1X) can also be used for head counting, the English sensor can distinguish whether an object is from the left to the right or the other way around, this feature is not particularly ideal in our testing, it can be counted vaguely, but if more than one person is together it is still possible to be recognized as one.

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