Smart city transport enabled by green technology
Among the IoT devices used in a smart city, the devices in the applications of transport and public display are exposed to demanding environment. Though TFT-LCD bus stop signs are eye-catching with their dynamic audit and video displays, they consume much power, are not ideal in cooling and outdoor visibility, and may bring about light pollution in the night. These are the problems difficult to solve for the TFT-LCD bus stop signs. The reflective ePaper of E Ink is not light-emitting and features ultra-low power consumption. The ePaper signage can be used in combination with a power supply of solar or renewable energy without the need to connect to the mains. It can be set up at any places without been restricted by wires and can ensure zero carbon emissions from the operation of the electronic signage.
E Ink's ePaper provides a digital signage that does not cause light pollution, ensures zero carbon emissions, are friendly to the mankind, environment and ecology. Based on the estimated 64,000 bus stop signs in Taiwan (including 22 counties and cities), if 32" ePaper signages are used as the interface of the smart bus stop signs, additional 200 thousand tons of CO2 emissions will be reduced in five years (the minimum service life of the product) in comparison with the 32" TFT-LCD bus stop signs. The reflective ePaper of ultra-low power consumption is not light-emitting and shows a clear display outdoors in the sun. It is helpful for reduced carbon emissions and low light pollution, and facilitates building a smart city toward net zero carbon emissions jointly.