To add value to its solutions, VMT wanted to offer its customers an in-door location system. The system would in particular be used to improve staff and equipment safety on tunnel construction sites. The company wanted to develop a portal which would eventually operate as a central control centre for such sites. VMT chose Zühlke for its ability to deliver a complete solution – from requirements analysis and architecture to usability engineering and design. The project also allowed the VMT development team to gain more experience with agile methods and enabled it to utilise these methods in-house.
The solution incorporates two different location models – coarse location at the tunnel segment level via DECT and a more precise location to approaching 1 metre accuracy using RTLS. A clear visual display design helps users when making safety decisions. The system allows manual changes to relevant parameters at any time. These changes are visible throughout the network, ensuring that the displayed view of the tunnel site is the same across all devices at all locations.
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