Streetlight Control System Based on Wireless Communication over DALI Protocol

Bellido-Outeiriño, F.J.; Quiles-Latorre, Francisco Javier; Moreno-Moreno, Carlos D.; Flores-Arias, J.M.; Moreno-Garcia, Isabel M.; Ortiz-López, Manuel

doi:10.3390/s16050597

Cited by 42 publications

(20 citation statements)

References 25 publications

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“…In the latter case, a bidirectional digital bus is used. When this solution is adopted, the most common choice is the Digital Addressable Lighting Interface (DALI) bus [67]. In this case, data are exchanged by means of an asynchronous, half-duplex, serial protocol over a two-wire bus, with a fixed data transfer rate of 1200 bit/s.…”

Section: Smart Public Lighting: Infrastructure Architecture and Main mentioning

confidence: 99%

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Design, Deployment and Evolution of Heterogeneous Smart Public Lighting Systems

Pasolini

Toppan²,

Zabini

et al. 2019

Applied Sciences

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Street lighting characterizes many smart city initiatives around the world. In fact, significant savings can be achieved by not only replacing traditional luminaires with low-power LEDs, but also providing streetlights with smart light controllers and network connectivity, allowing the introduction of a sensible light intensity management and reduction of maintenance costs. Moreover, if designed with a far-looking view, smart lighting infrastructure could also support city-wide Internet of Things services, becoming key enablers of the smart city revolution, also in the 5G perspective. In this paper, we provide a thorough discussion on network architectures and communication technologies that could be adopted for smart public lighting applications, showing their benefits and downsides. Starting with significant activity on research, implementation and in-field testing, we also outline the steps required for the deployment of a smart public lighting infrastructure, each discussed in accordance with the network topology considered. Finally, we introduce some additional services that a smart public lighting infrastructure could support and discuss the benefits that would arise from integration with the upcoming 5G cellular network.In this framework, the momentum for smart public lighting is mounting, as several trials and large-scale implementations showed their effectiveness [5]. In particular, LED fixtures are expected to dramatically reduce urban electricity costs, now due to street lighting for a share of 40% [6]. Smart luminaires will dynamically adapt lighting to actual needs, for instance lowering the lumen output when there are low traffic volumes and good visibility conditions are detected.Important references in this regard are the "GPP Revision of the EU Green Public Procurement Criteria for Road Lighting and traffic signals" [7], authored by the Joint Research Centre (JRC) of the European Commission, and the CEN/TR 13201 lighting standards [8][9][10][11][12], which define how to properly design lighting systems. As reported in Reference [7], "due to the multiple benefits of dimming, dimming controls must be installed in all cases unless, in exceptional circumstances, it can be demonstrated that the total cost of ownership would increase by installing dimming controls. The EN 13201 standard itself [8][9][10][11][12] recognizes that the required lighting levels are dynamic in nature and an appropriate lighting level at all times can only be ensured with adequate dimming control during off-peak hours. Dimming has obvious environmental benefits via lower energy consumption and reduced light pollution. Furthermore, dimming can enhance the lifetime of LED luminaires due to a reduced risk of overheating, which is the principal cause of abrupt LED failure." In this regard, results from a global trial of LED streetlights show that, when coupled with smart controls, LED fixtures can deliver electricity savings of up to 80% over classic lighting technologies [13].Beyond energy savings, since each smart streetlight n...

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Section: Smart Public Lighting: Infrastructure Architecture and Main mentioning

confidence: 99%

“…Bidirectional communications allowed by DALI are certainly a major advantage with respect to the unidirectional 0-10 V control. Ultimately, the following functionalities are digitally enabled by DALI [67]:…”

Section: Smart Public Lighting: Infrastructure Architecture and Main mentioning

confidence: 99%

Design, Deployment and Evolution of Heterogeneous Smart Public Lighting Systems

Pasolini

Toppan²,

Zabini

et al. 2019

Applied Sciences

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“…This micro-controller is suitable for this specific application, however it falls quite below the requirements for future experimental research, and the capabilities of the 64-bit ARMv8 multi-core CPU-based Raspberry Pi micro-controller, utilised in the system proposed in this current research. The work of Bellido-Outeiriño et al [51] presents a lighting control system based on TI CC2530OEM control board (CPU 8051) powered from mains (230 VAC) for managing public lighting networks. The control board, although efficient, is not easily reconfigurable, neither versatile in use, having quite a high implementation cost, and a power requirement from mains power supply, which makes it restrictive for remote installations and applications.…”

Section: Related Workmentioning

confidence: 99%

DALI LED Driver Control System for Lighting Operations Based on Raspberry Pi and Kernel Modules

Adam

2019

Electronics

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Light emitting diodes (LEDs) as an efficient low-consumption lighting technology are being used increasingly in many applications. The move to LED lighting is also changing the way the lighting control systems are designed. Currently, most electronic ballasts and other digital lighting devices implement the Digital Addressable Lighting Interface (DALI) standard. This paper presents a low-cost, low-power effective DALI LED driver controller, based on open-source Raspberry Pi3 microcontroller prototyping platform. The control software is developed as a Linux kernel module under UBUNTU 18.04.2 LTS patched with PREEMPT_RT (Preemptive Real-time) for real-time processing. This dynamically loaded kernel module performs all the processing, communication and control operations of the Raspberry Pi3-based DALI controller with the DALI LED driver and LED luminaire. Software applications written in C and Python were developed for performance testing purposes. The experimental results showed that the proposed system could efficiently and effectively manage DALI LED drivers and perform lighting operations (e.g. dimming). The system can be used for a variety of purposes from personal lighting control needs and experimental research in control of electronic ballasts and other control gears, devices and sensors, to advanced requirements in professional buildings, including energy management, lighting maintenance and usage.

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“…Sequential control divides the tunnel lighting operational modes into several categories according to the seasons and hours of the day [22]. Even though the two above methods are reliable and easy to implement in practice, the low degree of automation results in poor continuity and uniformity of luminance in tunnel interior [23]. Furthermore, when using the above two control methods, the lighting systems are generally not adjusted to the state of low energy consumption, even when there are no vehicles in tunnels.…”

Section: Tunnel Lighting Control Methods Literature Reviewmentioning

confidence: 99%

An Intelligent Luminance Control Method for Tunnel Lighting Based on Traffic Volume

Qin

Dong

et al. 2017

Sustainability

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This paper presents an intelligent control method for tunnel lighting based on traffic volume. The monitoring data for a period of 12 days of the Chibai tunnel (located in the Jilin province of China) under different weather conditions was selected as the case study. The data used in the analysis included traffic volume, vehicle speed, the time of light-emitting diodes (LEDs) operating at their lowest luminance level, and the average time interval between two consecutive vehicles. The traffic flow analysis indicated that the tunnel has a relatively heavy traffic volume in the daytime (7:00 a.m. to 6:00 p.m.) and a relatively low traffic volume in the nighttime (12:00 a.m. to 6:00 a.m. and 7:00 p.m. to 12:00 a.m.). Thus, we propose a tunnel lighting control method that distinguishes day and night operational strategies. In the daytime, the luminance of tunnel zones depends on tunnel exterior luminance, traffic volume and vehicle speed regardless of vehicle presence. In the night, the "vehicle in, light brightens; vehicle out, light darkens" control method is adopted for the tunnel luminance, which depends on vehicle presence.

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Streetlight Control System Based on Wireless Communication over DALI Protocol

Cited by 42 publications

References 25 publications

Design, Deployment and Evolution of Heterogeneous Smart Public Lighting Systems

Design, Deployment and Evolution of Heterogeneous Smart Public Lighting Systems

DALI LED Driver Control System for Lighting Operations Based on Raspberry Pi and Kernel Modules

An Intelligent Luminance Control Method for Tunnel Lighting Based on Traffic Volume

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