Objective of the EMUSER project is the realization of an innovative obstacle detection system integrated with a satellite Broad Band link for the safety of active level crossings.
EMUSER is designed and developed relying on Intecs extensive expertise in the railway domain, deep knowledge of safety regulations/standards and solid technological background.
EMUSER is an extension based on the existing MUSER system developed by Intecs for the detection of unexpected obstacles at level crossings and for the transmission of the related alarms and diagnostics to central control stations, certified by RFI (Italian Railway Infrastructure Manager) and CENELEC SIL-4 compliant.
Whereas MUSER relies on conventional communication channels, EMUSER relies on the introduction of the broadband satellite datalink that replaces (in locations where the terrestrial communication is not available) or complements (redundancy) the legacy communication link traditionally used in the railway infrastructure.
The introduction of satellite Broad Band link aims to increase the system’s availability.
The sector where the EMUSER offering is positioned is the provision of obstacle detection and signalling products and services for railway level crossings. The sector is worldwide, determined by the more than 600 thousand level crossings in the world, which are spread out among all major geographical locations in all continents.
Within this global sector, the EU market and the rest of the world are characterized by different constraints and factors influencing growth rates.
In the EU market one of the principal drivers for Rail Infrastructure Managers’ investment is the need to adhere to the safety standards and demonstrate compliance by means of certification. Securing level crossings in the EU is a growing trend as the European regulations require to increase the level of safety in the rail transport and level crossings constitute a significant safety concern.
In contrast, markets in the rest of the world are more lightly regulated but dominated by economic concerns. Poor existing railway communication infrastructure and remote locations in vast geographic regions drive up installation and operation costs to untenable levels.
The product fulfils the main RIM’s needs as:
To have a cost-effective solution in area not covered by terrestrial communication links.
The EMUSER system is composed of one Remote Control Station to control a set of Sensing Nodes. Each sensing node protects a level crossing.
When the barriers are closed, the EMUSER node is in charge of:
Each node is equipped with:
- The EMUSER cabinet (to implement the logic of the node);
- From one to four radar sensors (depending on the geometric characteristics of the monitored area).
- One camera for each radar sensor;
- One or more communication links.
Each node can communicate with the Remote Control Station using different mechanisms (depending on the node location and operational conditions):
- Wired link;
- Terrestrial wireless communication UMTS;
- Satellite link.
In parallel with the commercial solution we decided to equip the node with a type of antenna that does not require satellite dishes. This antenna is characterized by low profile, low weight and reduced complexity.
The integration of satellite and terrestrial technologies represents an efficient step forward to improve reliability, resilience and service availability.
Technically, the main advantages of using a satellite Broad Band link with respect to more traditional approaches (either based on conventional communication channels, or more drastically based on the substitution of level crossings with underpasses or overpasses) are:
- Increased resilience and availability of the whole system in situations where conventional communication systems are unavailable due to natural disasters (e.g. floods or earthquakes) or unforeseen damages to the rail infrastructure (e.g. derailment or copper theft);
- Possibility to install and operate the system also in areas that are uncovered or poorly covered by conventional communication networks: in such areas (for instance in the Middle East or in remote regions of Australia) wired connection with the central station may be unavailable and wireless connection may offer insufficient bandwidth for the transmission of real-time video sequences;
Limited investment and socio-technical impact if compared to the invasive solution of building an underpass or an overpass in substitution of a level crossing.
After CDR (April 2016), the development phase has started focusing on the software modifications necessary to support new operative logic flow, different node configurations and new video streaming protocol. Moreover specific analysis has been focused on the networking aspects in charge of managing the redundancy between different communication links assessing the features and configurations of the router device.
The hardware solution has been deeply analyzed in order to reduce the risks mainly related to the engineering process aimed to guarantee a proper housing for the satellite technology in very hard environment.
Wave Up has completed a first design of the MTS antenna, including the feeding section and the transition to square waveguide. Dielectric material procurement has been completed. A preliminary breadboard at 20GHz has been realized. The prototype has been measured in Far Field Test Range facilities.
In the next period the hardware developments will be finalized and the system integration will take place in Pisa premises. Factory acceptance tests will take place in April 2017.