Vítor Baptista

This paper presents Wattom, a highly interactive ambient eco-feedback smart plug that aims to promote a more sustainable use of electricity in the home. This paper describes our latest implementation of the Wattom plug, and three system applications. The first enables Wattom to power a connected device, and provide real-time feedback on the amount of electricity in the grid from renewable sources. The second enables users to schedule power events from their smart watches. Finally, the third… Exibir mais

This paper presents Wattom, a highly interactive ambient eco-feedback smart plug that aims to promote a more sustainable use of electricity in the home. This paper describes our latest implementation of the Wattom plug, and three system applications. The first enables Wattom to power a connected device, and provide real-time feedback on the amount of electricity in the grid from renewable sources. The second enables users to schedule power events from their smart watches. Finally, the third application uses non-intrusive load monitoring (NILM) to provide users with personal consumption information on multiple devices connected to a single Wattom plug. The paper concludes by presenting insights into the development and use of various iterations of the Wattom plug. Exibir menos

This paper presents Wattom, a highly interactive ambient eco-feedback smart plug that aims to support a more sustainable use of electricity by being tightly coupled to users' energy-related activities. We describe three use cases of the system: using Wattom to power connected appliances and understand the environmental impact of their use in real time; scheduling these power events; and presenting users with personal consumption data desegregated by device. We conclude with a user study in… Exibir mais

This paper presents Wattom, a highly interactive ambient eco-feedback smart plug that aims to support a more sustainable use of electricity by being tightly coupled to users' energy-related activities. We describe three use cases of the system: using Wattom to power connected appliances and understand the environmental impact of their use in real time; scheduling these power events; and presenting users with personal consumption data desegregated by device. We conclude with a user study in which the effectiveness of the plug's novel interactive capabilities is assessed (mid-air, hand-based motion matching). The study explores the effectiveness of Wattom and motion matching input in a realistic setup, where the user is not always directly ahead of the interface, and not always willing to point straight at the device (e.g., when the plug is at an uncomfortable angle). Despite not using a graphical display, our results demonstrate that our motion matching implementation was effective in line with previous work, and that participants' pointing angle did not significantly affect their performance. On the other hand, participants were more effective while pointing straight at Wattom, but reported not to finding this significantly more strenuating then when pointing to a comfortable position of their choice. Exibir menos

This work is focused on studying the immediacy of eco-feedback and the appropriation of these systems in households' daily life. This paper describes the development of Wattapp, a common two spots wall socket redesigned to display the current consumption using a set of LED lights, which change from green to red according to the consumption. The device was evaluated for fifteen days in the cafeteria/lounge of a research institute and a subset of six users were interviewed to assess how Wattapp… Exibir mais

This work is focused on studying the immediacy of eco-feedback and the appropriation of these systems in households' daily life. This paper describes the development of Wattapp, a common two spots wall socket redesigned to display the current consumption using a set of LED lights, which change from green to red according to the consumption. The device was evaluated for fifteen days in the cafeteria/lounge of a research institute and a subset of six users were interviewed to assess how Wattapp was perceived. In general, users understood the feedback. In addition, our evaluation disclosed how such device could be used in the day-to-day lives, for example, comparing the consumption of electrical devices or used to remotely control appliances. Exibir menos