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Internet of Things: Smart Lighting Applications... | ARM Connected Community


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Internet of Things: Smart Lighting Applications... | ARM Connected Community

  1. 1. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 1 of 10 All Communities > Internet of Things > Blog > 2013 > August > 17 Internet of ThingsInternet of Things Previous post Next post Chinese Version: NanoServices This blog discusses how the ARM® Sensinode™ NanoService™ solution can be applied to address smart lighting application use cases. The reader is strongly advised to review the NanoService white paper in order to have a basic understanding of the NanoService solution. Introduction The NanoService solution leverages the power of the Web architecture for developing and deploying smart lighting systems efficiently and securely. The NanoService solution consists of software for devices (endpoints in an M2M or Internet of Things deployment), backend servers and Web applications that together form an end-to-end platform. The NanoService solution can be applied to virtually any smart lighting system where IP is utilized as part of the access network. As an enabler for NanoService deployments, Sensinode has developed a set of Reference Applications that may be used by NanoService customers. Our licensees receive full source code for this Lighting reference application enabling them to kick-start their own applications development or quickly turn around internal proof-of-concept projects. Most existing smart lighting solutions are based on proprietary protocols that fall short on critical design criteria such as robustness, security, future-proofing and scalability. Based entirely on open standards, Sensinode’s end- to-end system solution delivers the following benefits: 1. Rapid Application Development – Through the use of a standard Web development environment 2. Robustness and Scalability – Field proven with the ability to scale to 1000 nodes per access point and features such as clustering, load balancing and automatic failover 3. End-to-end Security – Utilizes the latest in security protocols such as TLS and DTLS for node authentication and transport of application data 4. Future-proof – Standards-based solutions guarantee this technology will be around for the long haul Sensinode’s NanoService solution can be leveraged to deploy smart lighting systems easily, efficiently, and securely using RESTful Web services and Sensinode’s optimized M2M technology. REST stands for REpresentational State Transfer, the de-facto way distributed systems on the Web communicate today. For a good simple, explanation on REST, go here. Smart Lighting Applications Powered By NanoServices Posted by zinkyaw in Internet of Things on Aug 17, 2013 1:13:00 AM
  2. 2. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 2 of 10 Outdoor LightingOutdoor Lighting Outdoor and public area lighting are popular application areas for M2M technologies due to the fact that smart outdoor lighting can provide significant energy savings through remote monitoring, management and control. Typical lighting systems in this category include street lighting systems, campus lighting, advertisements and signage. These systems typically include four components: 1. Wireless connectivity (e.g. RF mesh using 6LoWPAN or Cellular) or wired (e.g. PLC) local area communication to the lights being controlled, 2. Edge routers 3. Backend platform (e.g., NanoService) 4. Backend application used by the administrators of the lighting system Figure 1. Outdoor Lighting Deployment Example Figure 1 provides an example of a typical wireless outdoor lighting system using NanoStack, NanoRouter, and NanoServices which includes line-powered lights, and battery-powered nodes such as motion sensors. Using NanoServices, control algorithms such as automatic dimming at non-peak times can be implemented, and motion sensors to reduce lighting when pedestrians or vehicles are not present can be integrated into the system. Monitoring of lamp efficiency and automatic reporting of failed lamps could also be enabled for preventive maintenance purposes. Integration with Google Maps facilitates network deployment planning. The light fixture
  3. 3. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 3 of 10 could also be integrated with other horizontal applications such as EV charging or grid communication. The key benefits of deploying a smart outdoor wireless lighting system include: Significant energy savings achieved by performing load shedding through remote commands issued by a central system Integration of sensors such as ambient light and occupancy sensors, which can further reduce the over- illumination Individual metering light fixtures, which gives the system owner the ability to validate the monthly electricity bill; something that was not possible without remote monitoring capabilities or individually metered streetlights The ability to remotely monitor the health of light fixtures, allowing system owners to more efficiently address streetlight outages and maintain operational efficiency When people think of outdoor lighting applications, they tend to think of just wireless outdoor street lighting. In fact, outdoor lighting applications span across a wide segment range as shown in Table 1. The NanoService solution can be used to address a wide range of outdoor lighting applications. Segments Applications Motorized City entrance, Roundabout, Bridge, Urban tunnel, Highway tunnel, Road junction, Motorway, Highway, Secondary road, Private road Non-motorized Pavement, Pedestrian crossing, Pedestrian street, Underpass, Gallery, Pathway, Cycle path Residential Street, Pathway Commercial Shopping center, Entertainment, Exhibition center, Car park, Hotel, Business center Leisure Square & piazza, Park & garden, Playground, Marina, Theme park, Seaside Signage Art, Monument, Ruin and remain, Water, Landscape, Major structure Transport Car park, Transport station, Tramway, Airport, Service station Sports and Recreation High-end stadia, Recreational facilities, Private grounds Table 1. Outdoor Lighting Applications Segments Indoor LightingIndoor Lighting Interest in deployment of indoor wireless lighting systems is also increasing as building owners look for ways to decrease installation costs and realize energy cost savings. In those cases where wire cannot be pulled and a retrofit installation is the only viable solution, wireless lighting systems are a very attractive option. In addition, other building automation system components such as thermostats, HVAC controllers, temperature, and
  4. 4. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 4 of 10 occupancy sensors could be integrated into the overall system. Consequently, NanoServices can be leveraged to deliver a truly smart building environment. Figure 2. Indoor Lighting Deployment Example Figure 2 shows an example of a typical wireless indoor lighting system that is powered by NanoServices. Deployments typically include line-powered light nodes as well as battery-powered nodes such as sensors and switches. Control algorithms such as automatic light shut-off through the use of schedules and motion sensors can be implemented. The ability to integrate and utilize building schematics facilitates indoor network planning. Sensinode System Software Components Sensinode provides a complete suite of system software for smart lighting applications.
  5. 5. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 5 of 10 Node Software Sensinode’s NanoStack™ 6LoWPAN software provides secure, end-to-end IPv6 connectivity optimized for smart lighting applications. NanoStack is embedded in each light fixture and can form a self-healing and self-configurable mesh network. Supported IEEE and IETF standards include 6LoWPAN (ND and RPL), IPv6, UDP, TCP, ICMPv6, and 802.15.4. RF interface support includes 2.4GHz and sub-GHz on a variety of hardware platforms from Tier 1 semiconductor manufacturers. Table 2 shows the list of supported hardware platforms. Frequency Vendor Chipset Type Development Platform Sub-GHz Atmel ATxmega256A3BU + AT86RF212B MCU + Xcvr XMEGA-A3BU Xplained + ATAVRRZ600 2.4 GHz Atmel ATMEGA256RFR2 SoC ATmega256RFR2-EK Sub-GHz TI MSP430F5438A + CC1101 + CC1190 (optional PA) MCU + Xcvr SmartRF TrxEB + CC1101EM (or CC1101+CC1190EM) 2.4 GHz ST Micro STM32W108 SoC STM32W-SK, STM32W- EXT Table 2. Supported Hardware Platforms Developers can also embed the NanoService Device Library (NSDL) in end-points. NSDL allows each light fixture to be easily controlled via a Web-based application (such as the Lighting Reference Application) deployed on top of the Sensinode’s backend data management and applications development platform, (NanoServices), In this scenario, each control on the light fixture (such as ON/OFF) is defined as an embedded Web resource that can be controlled using simple REST APIs which are exposed by the NanoService Platform. Figure 3 provides an example of how NanoServices employs CoAP to keep communications as lightweight and efficient as possible between the light fixture and the backend application. This communication between the light and the backend platform is secured with state-of-the-art, end-to-end application level security using eDTLS.
  6. 6. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 6 of 10 Figure 3. Example of Reading a Light Value Access Point Software Each lighting network uses an access point (or edge router) that allows it to connect seamlessly to a standard IP network. Sensinode’s NanoRouter™ software provides seamless handling of routing packets between the 6LoWPAN and the IP network. The NanoRouter software is available as a C++ implementation running in a Linux environment or an embedded C implementation running on Cortex M3/M4 processors. Backend Software Sensinode’s backend data management platform, the NanoService™ Platform, can be deployed in a private server, in a virtualized data center or in the cloud. A Web application would be deployed on top of the NanoService Platform to access the lighting controls via simple REST APIs. A Java SDK is provided to facilitate the development of the Web application. The NanoService Lighting Reference Application comes with source code that greatly facilitates the development and deployment of smart lighting systems. This application is aimed at administrators of all kinds of outdoor lighting systems. The application includes full Google Maps integration, a resource profile for lighting control, resource monitoring and control interfaces, group management, and light schedule management.
  7. 7. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 7 of 10 Figure 4. Lighting Reference Application The Lighting Reference Application as shown in Figure 4 provides the following functionality: Endpoint View: Displays all endpoints and groups. In this view, the user can add/remove groups, add/remove endpoints to/from a group. The search bar allows specific endpoints or groups to be found using its semantic name (e.g. “light-001”). The Lighting Reference Application also allows you to perform group requests. For example, turning on or off a particular group of lights. This can be done on the selected group or the group name returned by the search result. Events View: Allows the user to create notifications to the application when certain trigger conditions are met (e.g. a light fixture failure). Firmware View: Used for performing over-the-air (OTA) firmware updates to the endpoints or access point. The user has to select the firmware binary, destination firmware server, firmware type and version. Clicking on “Start update” will upload binaries to the firmware server. After the upload is finished the user can enable endpoints to download firmware from the firmware server. This can be executed in either the node details view or in the group actions view. Schedules View: Allows schedules to be created that will automatically trigger certain node behavior. The schedule can uploaded from an existing file or created with a web form. In any smart lighting deployment, information about the health, performance, and topology of the network is vital for keeping the system performing in top condition. Sensinode also provides a Network Management Reference Application called NodeView that provides developers with an excellent starting point to build such network diagnostic and monitoring applications into their deployment.
  8. 8. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 8 of 10 Summary This blog examined how smart lighting systems could be deployed using Sensinode’s NanoServiceTM platform. NanoServices is a solution that brings standardized, secure, and efficient IP and Web accessibility to M2M deployments that use 6LoWPAN or other IP-based protocols or Cellular-based M2M connectivity. Since Web
  9. 9. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 9 of 10 applications built on the NanoService Platform use standard REST Web interfaces, application development is greatly accelerated. The Lighting Reference Application, provided as part of the NanoService Package greatly accelerates application development by giving application developers a head start. In summary, the Sensinode NanoService solution enables rapid, scalable and highly secure smart lighting deployments. 8460 Views Tags: embedded, iot, internet_of_things, embedded_software, 6lowpan, m2m, lighting, coap, nanoservice, nanostack, nanorouter Login / Register to comment. 8 Comments Like (2) Patrick Gribben Aug 18, 2013 11:31 AM THanks for a detailed and thorough presentation of this area. I'm new to this area and I didn't find REST defined. It is defined in your linked white paper but even there it is a long way down. Like (1) zinkyaw Aug 25, 2013 10:37 PM (in response to Patrick Gribben) Thank you for your feedback Patrick. I've added a definition and link to a good explanation of REST at the top. Like (1) Patrick Gribben Aug 18, 2013 9:51 PM Why smart meters might not be so clever after all | Technology | The Observer This is scare-mongering but John Naughton is a high-class scare mongerer whose points do need addressing. zinkyaw Aug 25, 2013 11:00 PM (in response to Patrick Gribben) Interesting article, thanks for sharing Patrick. I think DECC is taking the right steps as should other countries going down the path of smart metering. As with any system, it is important that security be factored into the system design up front to use security protocols that have been standardized in the IETF. TLS and DTLS are the "gold standard" when it comes to Web security protocols. Sensinode offers end-to-end security using its optimized DTLS security as part of the NanoService solution, whereas other solutions are very weak in this area. They either rely on proprietary security implementations which are vulnerable to security threats, or go with a well known global security key that is shared by all nodes (very prone to brute force attacks). As discussed in the NanoService Security white paper, the most robust form of security uses certificates. However, the process of key generation is processing intensive, and can only be best serviced using a modern architecture, such
  10. 10. 7/17/15, 6:01 PMInternet of Things: Smart Lighting Applications... | ARM Connected Community Page 10 of 10 © ARM Ltd. Copyright 2015 | Home | Top of page | Mobile | Help | Privacy Policy | Cookies | Terms & Conditions Like (4) as a Cortex-Mx. Nodes that have 8- or 16-bit processors will take 10s of seconds, even minutes, whereas a node that uses a Cortex-Mx takes well under a second. Like (2) Patrick Gribben Aug 30, 2013 12:48 PM (in response to zinkyaw) Thanks Zin. I'm looking for reassurance in this area and yours is a re-assuring one. It also points out that Cortex processors are fast, which is good. When I work out how to do it I'll mark your reply as helpful.@Zin Kyaw Like (0) Jacob Beningo Aug 30, 2013 4:47 PM (in response to Patrick Gribben) Like (0) nilson Mar 11, 2014 12:52 AM Zin, is the firmware for the STM32W108 available? If yes, where can I find the NanoRouter library? Sorry if these questions are not related to this post, if this is the case, could you point to me where to start looking for these resources? Thanks a lot.. Like (1) zinkyaw Mar 12, 2014 12:35 AM (in response to nilson) Nilson, let's take this one to a separate thread, thanks. I will send you a separate e-mail on this topic.