Difference between revisions of "MOON"
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[[Image: MoonRMU.PNG | frame |none| Overview of the Moon Monitoring System]] | [[Image: MoonRMU.PNG | frame |none| Overview of the Moon Monitoring System]] | ||
− | An RMU is made of a VHF digital receiver operating VDL Mode 2 and an industrial computer on which the recordings are stored. The traffic characteristics captured and recorded at each RMU are then provided to the Central Monitoring Server (CMS) through | + | An RMU is made of a VHF digital receiver operating VDL Mode 2 and an industrial computer on which the recordings are stored. The traffic characteristics captured and recorded at each RMU are then provided to the Central Monitoring Server (CMS) through the internet or possibly the PENS network. The data transmissions from the RMUs to the CMS can be done automatically (on a regular – configurable – basis) or manually (at user’s request). |
The CMS role is to gather data traffic from RMUs, to merge them and filter out any potential duplicates (two RMUs could receive the same traffic because of coverage overlap). A large picture of VDL2 data link communication is then available for analysis and statistics. | The CMS role is to gather data traffic from RMUs, to merge them and filter out any potential duplicates (two RMUs could receive the same traffic because of coverage overlap). A large picture of VDL2 data link communication is then available for analysis and statistics. | ||
RMUs are deployed at different locations depending on the target area to be monitored. Due to propagation issues and in order to get as much uplink data as possible, it is always best to locate them close to active and operational VDL Mode 2 Ground Stations at airports. | RMUs are deployed at different locations depending on the target area to be monitored. Due to propagation issues and in order to get as much uplink data as possible, it is always best to locate them close to active and operational VDL Mode 2 Ground Stations at airports. |
Revision as of 09:47, 7 March 2012
In recent years, EUROCONTROL developed and operated the first generation of the ‘MOON’ network for monitoring general VDL MODE 2, CPDLC and VDL MODE 2 AOC traffic to support the initial deployment of the LINK2000+ Programme.
So far MOON has only been operated by EUROCONTROL but it has proven to be an efficient tool for performance monitoring and has been instrumental in the detection and investigation of CPDLC, VDL MODE 2 implementation issues affecting interoperability or channel occupancy. MOON also provides key information for further capacity planning and multi-frequency VDL 2 deployment.
MOON has been improved and now a second major release is available featuring more capability and a higher maturity level. This release is designed to be operated in support of the full scale implementation of datalink by ANSPs according to the SES Data Link Services Implementing Rule, EC Reg. No. 29/2009. According to this regulation all ANSPs in the busy core of Europe must have implemented a compliant datalink system by 2013 and by February 2015 all other EU Region ANSPs must also have completed implementation.
By connecting additional nodes to MOON, ANSPs could expand the MOON network to gain an independent view of their own CPDLC, VDL MODE 2 environment. By connecting to the MOON Server at EUROCONTROL participating ANSPs would also help to create European overview of the Datalink system, thereby significantly improving overall performance monitoring, problem investigation and resolution.
Objective
The MOON network is designed to enable in a cost effective way to:
- Monitor VDL mode 2 channels load for a capacity planning purpose:: MOON automatically generates a set of key statistics including the load of the VDL mode channels in operation.
- Consult live VDL mode 2 traffic: Using a specific interface an operator can consult the technical aspects of the traffic exchanged
- Detect early and automatically VDL mode 2 issues: Thanks to a powerful and extensible query engine, it is possible to set up a routine detection covering a wide range of possible VDL mode 2 implementation issues.
- Automatically monitor issues resolution and reoccurrence: While an issue is reported to be solved by the industry or the airspace users, MOON enables to automatically monitor and notify its operators through E-mail generation in case of re appearance of the issue.
- Generate detailed statistics: a wide range of statistics can automatically be computed by the MOON system. Charts (eg 2D or 3D bars or Pie charts or plain tabular reports) can easily be Copy/pasted for regular reporting.
Topology
The MOON monitoring system is made of local receivers stations named “Remote Monitoring Units” (RMU) communicating with a Central Monitoring Server (CMS). MOON infrastructure is totally independent of Communication Service Providers operating their own equipment for commercial VDL 2 service purposes.
An RMU is made of a VHF digital receiver operating VDL Mode 2 and an industrial computer on which the recordings are stored. The traffic characteristics captured and recorded at each RMU are then provided to the Central Monitoring Server (CMS) through the internet or possibly the PENS network. The data transmissions from the RMUs to the CMS can be done automatically (on a regular – configurable – basis) or manually (at user’s request). The CMS role is to gather data traffic from RMUs, to merge them and filter out any potential duplicates (two RMUs could receive the same traffic because of coverage overlap). A large picture of VDL2 data link communication is then available for analysis and statistics. RMUs are deployed at different locations depending on the target area to be monitored. Due to propagation issues and in order to get as much uplink data as possible, it is always best to locate them close to active and operational VDL Mode 2 Ground Stations at airports.