Nomad GPS is a robotic total station that is made more for cartographers than engineers, in conjunction with Silva’s slogan Get out there!
The original idea behind the Nomad GPS total station was to employ Silva’s extensive know-how in navigation and wayfinding into a professional tool to be used in accumulating even more information to be used in the same field. Silva has the background to introduce innovation to the field of topographical measurement. The aim in this project was not to make the most versatile total station and overrun the professional market. The basic idea is to introduce a product with a unique statement for Silva, which will engrave the message of the brand into peoples’ minds. Keeping in mind Silva’s slogan Get out there, it has to be a total station that can be used on the move, compared to another one that is very good at doing its job standing in one place. The ownership paradigm for total stations today requires them to be versatile and adaptable to a diverse range of measurement scenarios, and the Silva total station technically should be no exception to this. However by the statement it makes through design, it should strive to be a tool made more for mapping the wilderness rather than locating a concrete pillar
Download the Silva Nomad GPS Project Report for details on the Strategic Design process(PDF 2Mb)
Since the Nomad GPS is a totally robotic, remote operated device, the idea of looking “through” the scope has become almost completely pointless. Thus the viewfinder on the traditional total station is replaced with a digital image sensor, relaying the view through the scope to the screen on the remote controller.
The remote controller for Nomad GPS is in fact a full blown handheld computer with an operating system and various software running on it. Since the input requirements would differ greatly depending on the job at hand and the software being used for that, the remote does not have any dedicated controls.
Instead there are five oversized buttons that can easily be pressed with gloves on. Four are on one side of the screen to act as menu buttons
and one on the other to act as a selection/trigger button.
There is also a single force feedback knob, which uses an Immersion Technologies Haptic Encoder. This enables the software to simulate resistance, notches, spring action and dead ends on the same knob and immediately switch between modes depending on the requirements.
One of the biggest challenges of existing control panels and remotes for total stations is the requirement to identify a specific measurement. The traditional approach is to give a text label or a number to every measured point, and some controllers even squeeze a full alphanumeric keyboard onto a limited surface for this purpose. The inclusion of a digital image sensor gives an opportunity on this regard. The system could easily capture the transmitted image along with the measurement and mark the measured spot on the image. This is a much more intutive way of identifying a measured point, and it requires no extra action on behalf of the user.