The Power of LRF Timestamp for Multi-Sensor Fusion

What is a Laser Rangefinder (LRF) timestamp?

One of the most important software features of our Laser Rangefinders (LRF) is the timestamp. A timestamp provides a precise time record (accurate to milliseconds), when each LRF measurement takes place. When the timestamp feature is activated, every measurement is displayed along with its corresponding time making it easy to determine the exact moment or duration of the measurement. An initial command enables the synchronization of the LRF clock counter with the host system.

Why Timestamps matter for Multi-Sensor Fusion?

Accurate time synchronization is essential for effective multi-sensor fusion. Despite ongoing advancements, achieving precise synchronization between multiple sensors in milliseconds remains challenging due to internal sensor characteristics and transmission delays.

Based on our experience in developing multi-sensor handheld systems, we understand how critical it is to know exactly when different events occur within a complex system. Based on this knowledge, we offer an easy and precise timestamp solution for our LRFs. Synchronizing sensors such as cameras, laser rangefinders, and digital magnetic compasses, etc. is complex, however, our software feature provides at least a smart solution specifically for our LRF. 

Additionally, the timestamp feature can also indicate the exact moment when the LRF is transmitting 1550 nm light, information that is valuable since such transmissions may be detectable by enemy SWIR (Short-Wave Infrared) cameras.

Timestamp advantages:

• Simplifies sensor fusion in multi-sensor systems
• Indicates when 1550 nm light is transmitted and when the system may be detectable by SWIR cameras
• Easy: when activated, the timestamp is transmitted with each measurement