Solar wireless road devices: "There are "wireless applications that are also emerging that aren’t personal, but may eventually constitute as important a market—self-powered, embedded, networked, wireless devices. Like the ones that SPOT Devices Inc is bringing to market. ..Road Spot, their product, integrates high-efficiency solar cells with ultra-bright light emitting diodes (LEDs) to create a completely self-contained inroad light that flashes brightly upon activation. Unlike existing inroad lighting solutions, Road Spots install easily without trenching or saw-cutting road surfaces. Furthermore, since Road Spots do not need wiring or external power, they can be used in a multitude of locations. All of which makes them dramatically less costly than existing solutions. .. provide pedestrians about to enter a crosswalk with warning of [They can] approaching vehicles, and can give motorists advanced warning for road crossings, stop lights..
Road Spots communicate with a controller, and with each other, over 2.4GHz, which makes them easy to control, customize, and upgrade—without ever having to dig up the roadway. Even more importantly, wireless communication provides alerts about battery changes or replacement, as well as providing a copious database of operational statistics, such as how often each unit flashes, and how traffic varies by day and by time of time—data that’s otherwise extremely expensive to obtain."
Once on the net, why not these apps: "as part of automated farming solutions, for municipal airports who are currently limited to daylight hours of operation because they can’t afford to install runway lighting, concert venue traffic control, automated parking meter payment, and many more. Not to mention many potential military and homeland security and surveillance applications."" 10:49:59 PM