To measure the step of an intruder over a fence using a Laser Distance Sensor, you can design a system that monitors changes in distance to detect when an object (like a leg or body) crosses the fence's perimeter. Continuously measure detect changes in the measured distance. A sudden reduction in distance would indicate an intruder stepping over the fence.
Set up a threshold for distance change to minimize false positives caused by environmental factors (such as birds or leaves).
Use multiple sensors if needed to cover different fence sections or for higher accuracy.
Laser distance module connect with Micro controller: Arduino, ESP32, or Raspberry Pi can be used to read the sensor data and process it.
Laser distance module connect with alarm equipment,when the distance changes suddenly,the alarm will be triggered.
Implement an algorithm to detect significant distance changes within a specific time frame. For example, if the distance decreases by 20-30 cm suddenly, it's likely caused by an intruder’s step.
Installing position:
PTFS Laser Distance Sensor:
Meskernel Measuring Range:400m
Accuracy:+-0.5~1m
Frequency:1~50HZ
Output:TTL UART,digital output
Due to it’s 905nm invisible laser,In order to help user well capture the laser’s spot,it can add a laser diode on this laser module.
Welcome to contact us about this fast ,stable,accurate long range laser distance sensor module. We could provide the professional product guide and customized solutions for you.