Overview

The Deformation Monitoring Package (DMPACK) is a free and open source software package for sensor control and automated time series processing in engineering geodesy and geotechnics. The package consists of a library libdmpack and additional programs based on it which serve as a reference implementation of solutions to various problems in deformation monitoring, such as:

  • sensor control,

  • sensor data parsing and processing,

  • database access,

  • remote procedure calls,

  • data synchronisation and export,

  • spatial transformations,

  • time series analysis,

  • client status messages,

  • distributed logging,

  • plotting and reporting,

  • web-based data access,

  • MQTT and XMPP connectivity,

  • Leica GeoCOM API,

  • scripting,

  • e-mail.

DMPACK is a scientific monitoring system developed for automated control measurements of buildings, infrastructure, terrain, geodetic nets, and other objects through autonomous sensor networks in the IoT. The programs for sensor data collection are intended to be run on client hardware connected to the Internet through LTE/5G, usually industrial embedded systems or single-board computers.

Observation data is periodically collected by the clients from arbitrary sensors, like total stations, digital levels, inclinometers, weather stations, or GNSS receivers. The raw sensor responses are structured, post-processed, locally stored, and transmitted to a central monitoring server that provides an HTTP-RPC API for client–server communication.

The software package can be used to monitor objects like:

  • bridges, tunnels, dams,

  • roads, railways,

  • construction sites, mining areas,

  • slopes, landslides, cliffs, glaciers,

  • churches, monasteries, and other heritage buildings.

DMPACK is written in Fortran 2018 and integrates the relational SQLite database for time series and log storage on client and server. The server component is optional. If preferred, the data distribution may be omitted for local monitoring only.

The software package relies on POSIX standards for system calls and process management. The client-side message passing is based on POSIX message queues and POSIX semaphores. Currently, only 64-bit Linux (glibc) and FreeBSD are supported as operating systems.

The source code of DMPACK is released under the ISC licence that is functionally equivalent to the BSD 2-Clause and MIT licences. The source code and the documentation are available online. See the project website for further information:

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