Slope monitoring points are often distributed, without mains power, and affected by terrain and construction access. Wireless design should reduce power, cabling and maintenance while preserving reliable data acquisition.
Direct Cellular Reporting
Where carrier coverage is stable, a sensor or gateway can upload directly over 4G Cat.1. Devices such as the RT-1070 and RT-1090 integrate battery, acquisition and communications for small groups of distributed points.
LoRa to a Local Gateway
Where many points share a monitoring zone but carrier coverage is uneven, LoRa can aggregate data to one gateway with public network access. Terrain, obstruction, range and antenna position require field verification.
Bluetooth Field Retrieval
At blast sites or remote mountain points without a public network, a terminal can store records for retrieval through a mobile app. Bluetooth is valuable for setup and supplementary data collection, but it is not long-range real-time communications.
Power and Reporting Interval
Battery life depends on sampling, reporting, trigger count and signal strength. Start with the engineering decision interval, then size the battery; avoid collecting high-frequency data that has no operational use.
One Platform and Time Base
Whether data arrives through cellular, LoRa or field retrieval, standardize device IDs, timestamps, position, thresholds and health fields so displacement, rainfall, crack and tilt channels can be compared within one project.