d-Mesh is an affordable 900MHz and 2.4GHz wireless option to what is normally available to the mining and civil sectors. It is YieldPoint’s upload and telemetry solution for digital geotechnical instrumentation networks. The system wirelessly enables an array of d4Logger dataloggers and establishes a link with the nearest Ethernet Access Point using the d-Mesh GateWay.
The 900MHz wireless technology is based on Digi International’s industry leading Xbee 900HP radios. The radio have a line-of-sight range of several kilometers/miles on surface and up to 1km/3,000ft in underground excavations. The relatively powerful radio units form a low power mesh network thanks to a synchronized sleep routine: the radios wake up briefly and only when required to report readings, ensuring a battery life up to 1 year.
Each d-Mesh network comprises a single gateway which manages an array of self-configuring and potentially self-healing wireless nodes, depending on the configuration. The system is designed to be plug-and-play, building on YieldPoint’s modular d-Logger solution which requires minimal configuration and will operate out-of-the-box. The mesh becomes more reliable with an increase in the number of nodes. Nodes operate as repeaters, with data loggers attached or not. The d-Mesh gateway enables either manual download or regulated automated download of instrumentation data.
d-Mesh is the ideal solution for remote data access in mining and civil projects. The cost of the telemetry solution will always be much lower than the cost of the actual geotechnical instrumentation.