Smart street light

2. Smart street lamp application technology　

At present, the interconnection technologies used in smart street lamps mainly include PLC, ZigBee, SigFox, LoRa, etc. These technologies cannot meet the "interconnection" needs of street lamps distributed everywhere, which is one of the key reasons why smart street lamps are still not deployed on a large scale.

First, technologies such as PLC, ZigBee, SigFox, and LoRa need to build their own networks, involving surveys, planning, transportation, installation, commissioning, and optimization, and they need to be maintained after they are built, so they are not convenient and efficient to use.

Second, the networks deployed using PLC, ZigBee, SigFox, LoRa and other technologies have poor coverage, are susceptible to interference, and have unreliable signals, resulting in low access success rates or connection drops, such as: ZigBee, SigFox, LoRa, etc., use authorization-free The frequency spectrum, the same frequency interference is large, the signal is very unreliable, and the transmission power is limited, and the coverage is also poor; and PLC power line carrier often has more harmonics, and the signal attenuates quickly, making the PLC signal unstable and poor reliability.

Third, these technologies are either old and need to be replaced, or they are proprietary technologies with poor openness. For example, although PLC is an earlier Internet of Things technology, there are technical bottlenecks that are difficult to break through. For example, it is difficult to cross the power distribution cabinet to expand the control range of the centralized controller, so the technological evolution is also limited; ZigBee, SigFox, LoRa Most of them are private protocols, which are subject to many restrictions on standard openness; although 2G (GPRS) is a mobile communication public network, it is currently being withdrawn from the network.

Smart street light

Three, smart street lamp solution

The smart street lamp solution is a kind of IoT smart product that integrates a variety of information equipment technology innovation composite applications. It faces the actual needs of urban applications, uses various communication methods such as NB-IoT, 2G/3G/4G, LORA, and optical fiber for different application environments and customer needs, and comprehensively uses information methods on street light poles to establish access specifications , Unify all hardware layer interfaces, realize intelligent control of street lighting, real-time monitoring of urban environment, wireless WiFi base station, video monitoring management, information broadcast control system, and access to various sensing facilities, and lay the Internet of Things for the implementation of other smart city projects Foundation, effectively solve the problem of urban resource integration. Make city construction more scientific, management more efficient, service more convenient, and give full play to the skeleton role of street lights in smart cities.