The distance to the target is measured based on the time it takes to emit a laser beam and receive its reflection. The measurement distance varies depending on the installation environment, but it can measure up to 2000 mm. Accurate and fast distance measurement is possible without being affected by the size, color, or reflectivity of the target. It can be used in a variety of situations, such as managing the usage and operating rate of coin lockers in facilities, and detecting the presence or absence of luggage.
The prototype of this distance measurement sensor is currently undergoing testing with a view to covering a diverse range of applications. It employs the VL53L0X ToF sensor (Time-of-Flight sensor) manufactured by STMicroelectronics. The sensor unit is one of the smallest on the market today. It can be used to measure objects accurately and quickly, and relay data wirelessly via an EnOcean Gateway. It remains unaffected by the size, color or reflectance of the object. The distance to an object is measured based upon the time it takes to emit a laser beam and then receive its reflection. Therefore, the system is not suitable for energy-hungry battery operation of systems that measure constantly . But it’s ideal for battery operation of systems that measure every 10 minutes or so, where a longer battery lifetime is important.