The raw data at the fabrication site are collected whenever products pass through a checkpoint or the shipping dock area, where RFID readers are stationed and read the data stored in the tag attached to each product. This system employs UHF and passive type RFID readers and tags because their transmission range is appropriate for this application.
The raw data are transmitted over Wi-Fi to a client interface which converts the data to an appropriate form and upload them on the cloud DB. The data could work around the client and be passed directly to the cloud if the RFID reader supports necessary API to develop web applications (some vendors provide web API with extra charges).
At the remote construction site, the delivered products pass through the RFID readers stationed at the entrance where the tag data are gathered. Similarly, the raw data are uploaded on the cloud through a client interface. The Internet connectivity at the construction site can be obtained via the Air Cards that the constructor has been using. Another option is to use cellular networks, which are feasible since the data requirement is small (usually textual data less than a total of 10 MB
per day at each construction site).