INTRODUCTION TO SMART CITY
The development of Smart Cities not only impacts local communities positively, but also improves the quality of life, through data collection by sensors applied in real time monitoring systems. The core infrastructure elements in a Smart City includes:
Adequate water supply; assured electricity supply; sanitation, including solid waste management; efficient urban mobility and public transport; affordable housing, especially for the poor; robust IT connectivity and digitalization; good governance, especially e-Governance and citizen participation; sustainable environment; safety and security of citizens, particularly women, children and the elderly; and health and education.
By enhancing the interactivity, we achieve higher quality and better performance of urban services, while we are able to substantially reduce consumption, thus costs as well.
TECHNOLOGY AND COMPATIBILITY
Almost 6.5 billion Internet of Things devices were already connected by the end of 2015, and 50 billion are estimated to be connected by the end of 2020. LoRaWAN™ uses license-free RF frequency ranges and is capable of connecting thousands of devices over long range, making the building of local, regional, and even global IoT networks easier and more cost-efficient than ever. Worldwide compatibility means following new roaming protocols, thus LoRaWAN™ uses a wide spectrum of radio frequencies – 433MHz, 868MHz, 915MHz, 923MHz.
CitySys is built on a customisable open networking platform that means it can be connected easily to other systems and bodies. With Smart Metering electricity, water, and gas suppliers can benefit from real-time knowledge of the network’s parameters. Automatic meter reading and customer invoicing, and remote supply flow control minimise grid losses and so further decrease operational costs. The result is better service to customers.
For providing ultimate personal safety Smart Cities can use LoRaWAN™ to connect any LoRa™ device, whether it be part of a bicycle or car, or even part of a medical device. This makes it possible to do everything from tracking stolen vehicles to advanced medical monitoring and remote diagnostics. LoRa™ devices are battery operated and can connect and send data for up to 10 years without battery replacement.
All data about the luminaires, including real time power consumption, temperature, and device status and information about the environment (air quality, ambient conditions, traffic and parking, waste status) are harvested through Nodes incorporated into individual light points. All these data are used for local, precision control of the lighting according to real time need.
Lighting Panel Control & Monitoring Module serves as a Node on the electrical grid to monitor and control basic parameters and functions. Installed in distribution boxes, it carries out autonomous measurement and analysis of various parameters including periodical load curve and energy consumption reports. As a result all device errors and malfunctions are reported to CitySys Analytics in real time.
Data harvested by the Nodes are sent to the IoT Gateway. After being collated into packages, they are forwarded to the Network Server and to Analytics.
The CitySys Network Server manages every element of the network (all Nodes and Gateways) for optimised, failsafe operation. It allows for integration with other applications and solutions while securing and protecting the network integrity.
Located on the Network Server, Analytics receives all data and transforms them into useful information. One of the key features of CitySys Analytics is that it learns and adapts to the city by recognising short-term and long-term trends in activities, using them to fine-tune the control of all the functions. It also recognises new devices and updates its software automatically.
Communication between Nodes, Lighting Panel Control & Monitoring Modules, and the Network Server is achieved using the latest long range, low power radio frequency technology patented by SemTech under the LoRa™ trademark. This solution provides robust and reliable long range, spread spectrum communication with high interference immunity and low power consumption.
The LoRa alliance is an open association initiated by industry leaders with a mission to standardize Low Power Wide Area Networks (LPWAN) being deployed around the world to enable IoT, M2M and smart city and industrial applications.
STREET LIGHTING SOLUTION
The innovative and user-friendly street lighting management system by OMS offers several benefits. By implementing real time traffic management system the light level is adjusted to traffic volume, dimming during the silent hours that leads to saving large amounts of energy on outdoor lighting. The LED luminaires with efficient optic system maintain the highest level of safety on the roads with 100% uniformity, superior colour rendition and visual acuity. The software supports real-time system monitoring with information about luminaire, group and system power consumption, voltage parameters, current and past power factors and even device temperatures. It also lowers maintenance costs thanks to automated data collection and by delivering alerts.