Implementing Smart City Technologies to Inspire Change in Consumer Energy Behaviour
Abstract
:1. Introduction
- Social and environmental policies’ political commitment to develop smart cities supports connection of technological tools, especially ICT, with social, economic and environmental benefits to achieve “smartness” and deliver a better quality of life for citizens.
- Technological base, including sensors and actuators: widespread sensors enable cities to collect accurate measurement data about different cities’ systems (e.g., energy grid or transportation, in real time).
- The capacity of communication channels: telecommunication networks, whether wired, optical or wireless, were designed for human or person-to-person communications, in order to be able to follow a business model and an operational-functional capacity of the network and always thinking of covering cities of a few square kilometres per thousand inhabitants and bandwidth in Megabits per seconds. If an intelligent city with Internet of Things (IoT) or Machine-to-Machine (M2M) is imagined, the number of new users could be so high that it could quickly saturate the communication network. Therefore, a design and an adequate administration of the resources of the communication network becomes important and necessary to consider while planning a smart city.
- Broad adoption and the user experience: users at different levels of activity can become active participants, both using the information provided on the different platforms and adopting technologies and uploading information to the network or intelligent platforms of the city.
2. EU and LAC Policy and Legal Context for Smart Cities
3. Smart Meter Implementation in Bucharest Pilot
- The types of appliances that are currently in use in households are very different from those present not only a couple of decades ago but even a year or two ago. Mostly resistive loads are replaced with electronics and static converter interfaced loads.
- The new generation of household owners represented by technical university students [40] have other behavioural patterns than their parents and grandparents (e.g., they have jobs with flexible hours, they cook less at home, play more online games, etc.). It is to be mentioned that the presented results do not consider the work from home phenomena more and more present starting in 2020.
4. User Consumption Habit Assessment Tool
4.1. Gamification Tool
- Interaction with the tool—represented by application user and its manager. It incorporates initialization, login and game, groups and social interaction.
- Interaction with the game—represents the main mechanics for user interaction with the game tool.
- Mobile user interface—it is composed of sign in/social login, device setup, localization, chat, challenges, ranking, etc.
- Web-based user interface—utility used by the tool manager to analyse aggregated information.
- Tool database—details the structure and contents of the elements within the database, specifying data field, data type, description, details and data cross-interaction.
- System architecture—architecture for the server that hosts the game tool is given in Figure 1. The architecture is mainly divided into three output branches—web dashboard/reporting, mobile game and notifications.
- First branch represents the internal structure of the web dashboard/reporting that uses SpagioBI [46] to keep a secure connection to access the data, a load balance mechanism, and all requests are processed in a web flow, which uses a temporary database to create the reports.
- Second branch, the data of game interaction service structure, where through a game server structure of Unity [47], the data are distributed to the users through the mobile game.
- Last branch, notification system that operates using mail server system, sending the notifications to the user by a queuing system like RabbitMQ with a direct type [48].
4.2. Tool Performance
5. Communication Solutions for Energy Services in Smart City
5.1. Description of Communication Solutions
- Wide area networks (WAN) provide communication between the electricity company and the substations. WANs are high-bandwidth trunk communication networks that handle long-distance data transmission.
- Field area networks (FAN), neighbourhood area networks (NAN) and advanced measurement infrastructure (AMI) provide communication for the energy distribution areas. The FAN/NAN/AMI interconnect WAN and the home/building/industrial area networks (HAN/BAN/IAN) of the end users.
- Home area networks (HANs), building area networks (BANs) and industrial area networks (IANs) provide communication between electrical devices and smart meters within the home, building or industrial complex.
5.2. Results of Simulation of Communication Solutions
6. Discussion and Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
Appendix A. Technical Parameters of 3G and WiMAX
Technology | 3G | WiMAX |
Channel bandwidth | 850 MHz/900 MHz/1900 MHz/AWS (1700–2100 MHz) | 1.25 MHz/1.75 MHz/3.5 MHz/5 MHz/7 MHz/8.75 MHz/10 MHz/14 MHz/15 MHz |
Data transmission speed | 384 kbtps−2 Mbps | 1 Mbps–75 Mbps |
Receiver sensitivity | −60 dbm | −90 dbm |
Spectral efficiency | <1.25 bps/Hz | <3.7 bps/Hz |
Modulation | QPSK/BPSK | QPSK, 16QAM, 64 QAM |
Frequency band | 5 MHz | 2 GHz–11 GHz |
Duplexing | CMDT/TDD | TDD, FDD |
Multiple access | TDMA/CDMA | SOFDMA |
Standard | 3GPP | IEEE 802.16 |
Transmitter power | Class 1—33 dbm Class 2—27 dbm Class 3—24 dbm Class 4—21 dbm | 23 dbm |
Chip rate | 1.22 Mcps | 7–14 ksps |
Number of users | 50–150 | 200–600 |
Appendix B. Model Input Parameters
Category | Parameter | Values |
System parameters | Frequency | 200 MHz–20 GHz |
Distance | 1 km–2000 km | |
Antenna height | 0.5 m–3000 m | |
Polarization | Horizontal/vertical | |
Environmental parameters | Irregular terrain variable | Average roughness (m) |
Electrical constants of the terrain | Permittivity and conductivity | |
Surface refractivity | 250–400 N-units | |
Climate | 7 types | |
Parameter set | Positioning criteria | Random, careful, very careful |
Statistical parameter | Reliability variable—time, location and space | 0.1–99.9% |
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City | Area, km2 | Number of People in Thousands | Weather | Number of Antennas 3G | Number of Antennas WiMAX | Number of Users 3G/min | Number of Users WiMAX/min | Propagation Coverage 3G | Propagation Coverage WiMAX |
---|---|---|---|---|---|---|---|---|---|
Riga | 307 | 679 | Humid Continental | 48 | 18 | 7.2 | 10.8 | 88–90% | 90–92% |
Bucharest | 326 | 1883 | Humid Continental | 30 | 12 | 4.5 | 7.2 | 94–96% | 96–98% |
Florianópolis | 443 | 477 | Temperate Maritime | 38 | 30 | 5.7 | 18.0 | 78–81% | 80–81% |
Santiago | 837 | 6257 | Mediterranean Continental | 74 | 40 | 11.1 | 24.0 | 92–94% | 82–90% |
Concepción | 221 | 217 | Oceanic Maritime | 26 | 13 | 3.9 | 7.8 | 76–78% | 84–86% |
Copiapó | 175 | 151 | Desert | 26 | 7 | 3.9 | 4.2 | 50–60% | 70–80% |
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Mutule, A.; Domingues, M.; Ulloa-Vásquez, F.; Carrizo, D.; García-Santander, L.; Dumitrescu, A.-M.; Issicaba, D.; Melo, L. Implementing Smart City Technologies to Inspire Change in Consumer Energy Behaviour. Energies 2021, 14, 4310. https://doi.org/10.3390/en14144310
Mutule A, Domingues M, Ulloa-Vásquez F, Carrizo D, García-Santander L, Dumitrescu A-M, Issicaba D, Melo L. Implementing Smart City Technologies to Inspire Change in Consumer Energy Behaviour. Energies. 2021; 14(14):4310. https://doi.org/10.3390/en14144310
Chicago/Turabian StyleMutule, Anna, Marcos Domingues, Fernando Ulloa-Vásquez, Dante Carrizo, Luis García-Santander, Ana-Maria Dumitrescu, Diego Issicaba, and Lucas Melo. 2021. "Implementing Smart City Technologies to Inspire Change in Consumer Energy Behaviour" Energies 14, no. 14: 4310. https://doi.org/10.3390/en14144310