Search results

Minimizing the energy consumption in a wireless sensor node is important for lengthening the lifetime of a battery. Radio transmission is the most energy-consuming task in a wireless sensor node, and by compressing the sensor data in the online mode, it is possible to reduce the number of transmission periods. This study aims to demonstrate that temporal compression methods present an effective method for lengthening the lifetime of a battery-powered wireless sensor node.

In this study, the energy consumption of LoRa-based sensor node was evaluated and measured. The experiments were conducted with different LoRaWAN data rate parameters, with and without compression algorithms implemented to compress sensor data in the online mode. The effect of temporal compression algorithms on the overall energy consumption was measured.

Energy consumption was measured with different LoRaWAN spreading factors. The LoRaWAN transmission energy consumption significantly depends on the spreading factor used. The other significant factors affecting the LoRa-based sensor node energy consumption are the measurement interval and sleep mode current consumption. The results show that temporal compression algorithms are an effective method for reducing the energy consumption of a LoRa sensor node by reducing the number of LoRa transmission periods.

This paper presents with a practical case that it is possible to reduce the overall energy consumption of a wireless sensor node by compressing sensor data in online mode with simple temporal compression algorithms.

The purpose of this research project was to improve public awareness to improve public awareness of the importance of energy conservation and to improve the use of simple conservation strategies. A thorough evaluation of the net gain from the numerous energy campaigns rolled out to the public every year is lacking. This study conducted pre- and post-campaign surveys and focus groups to evaluate one campaign’s impact on self-reported energy behaviors.

The campaign used television public service announcements and a website to improve awareness of the city’s efforts to conserve energy and to increase individual energy conservation practices. Focus groups (n = 40) were used to identify common barriers to conservation, and pre- and post-surveys (n = 533, 479) were conducted to evaluate the campaign’s effectiveness.

Results indicated that the campaign increased positive changes in changing light bulbs and confidence in taking action to turn down thermostats, unplug devices and turn off lights. While follow-up research is needed on the precise mechanism of the psychological process at work, the findings are consistent with the concepts of self and response efficacy as needed components of any behavior change. The authors advocate the adoption of research-informed message design to maximize communication campaign effects.

This paper demonstrates how the combination of three prominent persuasion theories can be used to develop behavior change campaigns. Also, it is one of the few studies to evaluate the effectiveness of the Energy Star campaign.

The purpose of this paper is to test the effects of citizens’ support for two rival and opposing conceptions of political involvement, political consumerism and stealth democracy, on their attitudes about demand response (flexible consumption) and prosumerism (self-production) in the context of making of Finnish energy policy. Stealth democracy represents an established view on the role of citizens in energy policy making: the energy sector has traditionally been presented as a technocratic domain reserved for experts and businessmen. By contrast, political consumerism can be seen as an expression of “energy democracy”.

The data is based on a postal survey and an internet survey that were conducted in 2016 among a random sample representing Finns who were between 18 and 75 years. The dependence of the support for demand response and prosumerism on the endorsement of political consumerism and stealth democracy will be tested statistically (Pearson chi-square).

The endorsement of demand response mainly depended statistically on citizens’ attitudes towards political consumerism and stealth democracy. However, comparing electricity prices and changing electricity suppliers did not depend on adherence to political consumerism and stealth democracy. Nevertheless, in these cases, support was higher among the supporters of political consumerism than among supporters of stealth democracy. By contrast, the endorsement of prosumerism, for instance, in terms of factors that influence citizens’ decisions to invest in electricity generation in their households, depended statistically on citizens’ attitudes on political consumerism and stealth democracy.

It might be that the variables used in this study to measure stealth democracy are not specific enough. More generally, Finns’ willingness to support for stealth democracy may be based on or at least encouraged by the misunderstandings of democratic politics: more information is needed on the level of knowledge that citizens have about normative principles of democratic decision-making processes.

The implication of this study for energy policy making is that there are (at least in Finland) good preconditions for developing a decentralized energy system: citizens are ready to adopt a more active role as energy citizens in terms of demand response and prosumerism – irrespective of their attitudes on macro-level attitudes on governmental institutions. Democratization of the energy system could strengthen the legitimacy of energy policy making.

Citizens’ attitudes indicate that their potential for involvement needs to be strengthened in the spirit of energy democracy: the idea of energy democracy needs to be seen in terms of the demand for increased accountability and democratization of the energy sector that was previously not seen as requiring public involvement and was most often depoliticized and dominated by technocrats. However, strengthening energy democracy through demand response and prosumerism is not without its problems: utilization of these devices requires a relatively large amount of resources which depend on the individuals’ socio-economic position. Thus, energy democracy cannot replace but complement electoral participation as a form of energy policy involvement.

The contribution of this study is to fill a part of the research gap linking to ongoing energy transitions. As a socio-technical transition can take place only if citizens support and participate in it, we need to better understand citizens’ attitudes on energy consumption and production and energy policy involvement. Citizens’ attitudes on energy production and consumption are becoming more and more critical for managing the energy sector as a result of that the share of wind power and solar power is increasing in the energy system. In a decentralized energy system, citizens have to be prepared to change their modes of operation. To the best of the authors’ knowledge, the originality of this study is to test the impact of citizens’ political attitudes on the endorsement of demand response and prosumerism.

This study aims to provide a systematic review about the Internet of Things (IoT) and its impacts on happiness. It intends to serve as a platform for further research as it is sparse in in-depth analysis.

This systematic review initially observed 2,501 literary articles through the ScienceDirect and WorldCat search engines before narrowing it down to 72 articles based on subject matter relevance in the abstract and keywords. Accounting for duplicates between search engines, the count was reduced to 66 articles. To finally narrow down all the literature used in this systematic review, 66 articles were given a critical readthrough. The count was finally reduced to 53 total articles used in this systematic review.

This paper necessitates the claim that IoT will likely impact many aspects of our everyday lives. Through the literature observed, it was found that IoT will have some significant and positive impacts on people's welfare and lives. The unprecedented nature of IoTs impacts on society should warrant further research moving forward.

While the literature presented in this systematic review shows that IoT can positively impact the perceived or explicit happiness of people, the amount of literature found to supplement this argument is still on the lower end. They also necessitate the need for both greater depth and variety in this field of research.

Since technology is already a pervasive element of most people’s contemporary lives, it stands to reason that the most important factors to consider will be in how we might benefit from IoT or, more notably, how IoT can enhance our levels of happiness. A significant implication is its ability to reduce the gap in happiness levels between urban and rural areas.

Currently, the literature directly tackling the quantification of IoTs perceived influence on happiness has yet to be truly discussed broadly. This systematic review serves as a starting point for further discussion in the subject matter. In addition, this paper may lead to a better understanding of the IoT technology and how we can best advance and adapt it to the benefits of the society.