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Noise spectral
These tools permit to inquire the Power spectral density MedNet station archive.
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nmxptool

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nmxptool development is moving to
https://gitlab.rm.ingv.it/matteo.quintiliani/nmxptool

Current version of nmxptool is 2.1.4 (2017/01/04)

Binary for Windows
nmxptool-2.1.1-rc1-bin-i686-pc-cygwin.zip (2012/10/11)

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Open-Source and Cross-Platform software for Nanometrics seismic data acquisition

The Nanometrics servers NaqsServer and DataServer can provide on-line access to seismic data and state-of-health information accepting TCP/IP connections and forwarding the requested data to each client program. NaqsServer collates and stores in near-real-time incoming data in ringbuffers whereas DataServer provides data of the past stored in NaqsServer ringbuffers. In order to implement the Nanometrics subscription protocols, the author developed a software consisting of a library called libnmxp and a tool called nmxptool. The library exposes a set of documented APIs which allow to communicate with the Nanometrics servers. The tool, based on libnmxp, allows to retrieve or monitor real-time data and data of the past.

nmxptool can be used in three different ways: (see also the diagram)

• stand-alone to monitor data or save retrieved data in mini-seed records
• launched as an Earthworm module to redirect data into the EW-rings
• like a Seed-Link plug-in to feed the SL-server

The main contribute, as regards other similar software, is the capability to manage Raw Stream connections by buffering and sorting all received packets, included the retransmitted ones, guaranteeing a good compromise between data continuity and low latency. Besides, nmxptool allows to retrieve Data-On-Demand with minimum delay after request. Software is open-source and released under GNU Library General Public License. It has been written in C language using the GNU Build Tools (automake, autoconf and configure script) and taking in account the cross-platform compilation aspects, in fact, it can run on almost all the Unix-like operating systems, Mac OS X, Windows and either 32-bit or 64-bit architectures.

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Downloads

Sources

• https://gitlab.rm.ingv.it/matteo.quintiliani/nmxptool
• Current release is available from here
  nmxptool-2.1.4.tar.gz (2017/01/04)
  Please, let the author know you are using nmxptool.
  Send an e-mail to matteo.quintiliani [at] ingv [dot] it

Optional libraries

• The Mini-SEED library libmseed
  https://ds.iris.edu/ds/nodes/dmc/software/downloads/libmseed/
• Earthworm distribution
  http://earthworm.isti.com/trac/earthworm/

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Binaries

• Release Candidate Binary for Windows (2012/10/11)
  • Download: nmxptool-2.1.1-rc1-bin-i686-pc-cygwin.zip
    Warning: this windows binary has been compiled on Windows XP within the Cygwin environment, using the package mingw-pthreads and some Earthworm library sources from EW changeset 5054.

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Last Release Notes

Release 2.1.4 (2017/01/04): Complete release notes in HISTORY

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Other

Files:
README - Information about nmxptool
HISTORY - Detailed release notes
COPYING - GNU license
HELP - Help output from command "nmxptool --help"
Earthworm configuration: Overview - Commands

Diagrams:

Click to enlarge

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Author: Matteo Quintiliani - matteo.quintiliani [at] ingv [dot] it

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