Due to the global pandemic, in industry field, it is necessary for employee to wear a positioning tag to measure the relative distance to each other, when distance between each other is less than set range (ex. 2m, adjustable), the tag will alarm automatically (vibrate or buzzer) to remind employee to keep proper distance. More importantly, each alarm event will be recorded in the tag and upload to the server through the wireless gateway or by the wired connection that the tag is connected to computer and then gets to the server via network, through which a contact tracing solution is.

Solution 1:

* Wired connection, low investment cost, 30000 contact data storage

Solution 2:

* With gateway, real-time upload of contact data, wide coverage