Smart Street Lamps
Smart street lamps have been developed for over seven years. These technologies have played an important role in urban safety, energy conservation, and efficient O&M. Most of the existing smart street lamps use interconnection technologies such as power line communication (PLC), ZigBee, SigFox, and LoRa. However, these technologies cannot provide massive connectivity for widely distributed street lamps, which hinders large-scale deployment of smart street lamps. First, PLC, ZigBee, SigFox, and LoRa technologies require network construction and maintenance on the customer end. It is inconvenient and inefficient for customers to survey, plan, transport, deploy, test, and optimize their own networks. Second, networks using these short-range communications technologies offer poor coverage and can commonly experience interference. Unstable signals may likely lead to a reduction in both access and connection success rates. For example, ZigBee, SigFox, and LoRa technologies use unlicensed spectrum, which suffers from great co-channel interference. They provide unreliable signals, restricted transmit power, and poor coverage. PLC also has reliability problems. It provides unstable power line carrier signals due to a large number of harmonics and quick signal attenuation. Third, these technologies are outdated or developed on a private basis. For example, PLC is an early launched IoT technology. However, PLC cannot expand the coverage of centralized control nodes due to limited capabilities of power distribution frames, which causes barriers in future evolution. ZigBee, SigFox, and LoRa technologies are based on private standards, which restricts their openness. Although 2G networks are public networks, they will be deprecated in the near future.
Huawei provides two smart lighting solutions. The first iteration is the one-hop individual-control NB-IoT solution, where the operator builds and operates networks for customers. The other is the two-hop individual-control EC-IoT + RF solution, in which customers need to build and operate networks by themselves.
NB-IoT Enables Smart Street Lamps
NB-IoT evolves from 4G and is an IoT technology dedicated to massive connectivity. The NB-IoT technology allows distributed street lamps to access the network at any time to achieve large-scale interconnection. The NB-IoT Smart Street Lamps Solution frees customers from network construction and maintenance and provides high reliability. NB-IoT uses unified global standards and facilitates smooth evolution towards 5G.
NB-IoT frees customers from network construction and maintenance. Unlike solutions such as PLC, ZigBee, Sigfox, and LoRa, in which dispersed networks are built by customers, the NB-IoT Smart Street Lamps Solution runs on operator networks. It uses plug-and-play street lamps to transmit data in one hop to a dedicated cloud management platform. The network coverage performance is maintained and improved by operators, which saves customer's network maintenance costs.
NB-IoT is also highly reliable. NB-IoT has a strong anti-interference capability due to its use of licensed spectrum. It can guarantee a connection success rate of 99.9%, which is higher than ZigBee, Sigfox, or LoRa technologies (85%).
NB-IoT uses unified global standards and facilitates smooth evolution towards 5G. NB-IoT complies with 3GPP specifications and has a consolidated industry chain. This ensures smooth future-oriented evolution and presents considerable business opportunities.
The IoT platform provides basic connection management, data management, and device management capabilities for Huawei Smart Street Lamps Solution applications while enabling flexible and rapid deployment through an open standard interface.
Smart Street Lamps in Weifang, Shandong: Huawei had partnered with China Unicom (Shandong) and Shandong AOD to deploy more than 40,000 NB-IoT smart street in Weifang, Shandong. Huawei provided NB-IoT chips for Shandong AOD and NB-IoT network devices for China Unicom (Shandong). China Unicom (Shandong) provided NB-IoT network services for Shandong AOD. And Shandong AOD, as the general contractor, offered end-to-end integration and operation services of smart street lamps. This deployment project has fully verified the advantages of NB-IoT over ZigBee in terms of network construction, maintenance, capacity, and access success rate.
Smart Street Lamps in Yingtan, Jiangxi: In early June of 2017, China Telecom, TelChina, and Huawei jointly launched the world's first large-scale NB-IoT-based commercial smart lighting project in Yingtan, Jiangxi Province. Based on NB-IoT networks provided by operators, the smart lighting solution uses licensed spectrum and provides good coverage and high reliability. The solution delivers accurate single-lamp control and maintenance. Smart street lamps are lighted or dimmed automatically based on the changes of seasons, weather or other factors, reducing power consumption by 10% to 20%. Using the NB-IoT smart lighting solution, street lamp operators do not require manual inspection to the status of the lamps and accurately locate malfunctions. This can all be done remotely. They can provide lifecycle services based on the operating data of lamps, reducing O&M costs by 50%.
Huawei EC-IoT Smart Street Lamps Solution
The solution integrates 6LoWPAN modules, supports multiple mesh points, and reduces the number of available gateways. It supports one-click mesh network configuration and allows mesh points to rapidly access the network, reducing maintenance costs.
This solution operates on 2G, 3G, or 4G networks provided by operators, eliminating network interference. It uses capability exposure APIs of the EC-IoT gateway to allow customers to develop local applications on the EC-IoT gateway, facilitating local O&M tasks. Street lamp control, parameter settings, as well as fault, log, and status queries can be locally executed. The EC-IoT gateway can also connect to the IoT platform to centrally manage gateway data.
The IoT platform is used to manage devices of EC-IoT gateways. It also provides capability exposure APIs to allow customized development of street lamp applications.
Huawei and ESL Company had worked together to deploy the two-hop individual-control EC-IoT+RF solution and upgrade old street lamps in the Czech Republic. The project helps reduce the total power consumption of street lamps in the country by 80%.