During system installation, a channel is selected based on which channel offers the best signal-to-noise ratio. On power up, the Gateway scans the three channels transmitting a beacon.
The Repeater responds to the beacon and joins the network on the appropriate channel. If a Repeater loses contact with the Gateway during system operation, it listens for a beacon and reconnects to the network on that channel.
The Gateway periodically compares the signal-to-noise ratio on the current channel to the signal-to-noise ratios on the other channels. If the Gateway finds a better signal-to-noise ratio, it will transmit a beacon to the Repeaters to join the network on that channel.
The TempTale unit scans the same three channels and looks for a network. If one is not found, it sleeps for another cycle. If a network is found, it remains on the channel and waits to be downloaded. The signal used is a narrow band that transmits at +3 dBm. The channel width is 185 kHz, with 99 percent of energy within this channel.
Sensitech | Complete Cold Chain Solutions
Sensitech offers complete cold chain solutions for monitoring temperature-sensitive products enabling our customers -- global leaders in Food, Pharmaceuticals, Biologics, and Industrial -- to track and monitor assets from beginning to end of the cold chain.
Our products and services help to increase profitability, deliver higher quality products, ensure consumer safety, comply with rigorous regulatory requirements and protect brand equity. Ultimately, our solutions strengthen your bottom line by allowing fast and accurate flow of data straight from the loading dock to the corporate office.
Our validated temperature monitors, proprietary software for data analysis and reporting, and consulting services help you analyze, interpret and utilize the information you collect. This information can help to identify temperature abuse and may be useful in supporting insurance claims. Sensitech has also participated in several legal claims as an independent third party supplier of temperature monitors for the food and pharmaceutical vertical markets.
Sensitech supports cold chain monitoring programs in 7 of the top 10 U.S. supermarkets, 18 of the top 20 multi-national pharmaceutical companies and 9 of the top 10 biopharmaceutical companies. Sensitech also supports HACCP compliance and food safety programs in 10 of the top 15 restaurant chains.