In recent years, the dense distribution of new 5G base stations has become the focus of construction. However, due to the limited urban space, it has become a unanimous choice for cities to make full use of infrastructure such as street lamps, telephone poles, traffic lights and billboards to realize the construction of 5G base stations, and multifunctional smart light poles have become a major trend of development.
the overall architecture of smart light pole system includes perception layer, network layer, platform layer and application layer.
perception layer: it mainly provides the ability to perceive the environmental space, and the equipment involved includes intelligent street lamps, security cameras, environmental monitoring sensors, LED screens and so on.
network layer: based on Ethernet standard protocol, it integrates 3G/4G, Wi-Fi, ZiBee and other technologies, reports the data generated by various devices on the smart light pole, receives the operation instructions from the management platform, and distributes them to the corresponding devices for execution.
platform layer: collecting and processing the original data information obtained by the perception layer; There are open interfaces for access management of third-party platform systems and interconnection between systems.
application layer: including street lighting monitoring, security monitoring, environmental monitoring, information release, network broadcasting, emergency call and other functions.
Smart street lamps are equipped with various sensors and embedded computer hardware on street lamps and lampposts, which integrate lighting, Wi-Fi hotspots, communication base stations, environmental monitoring, cameras, voice broadcasting, display screens, charging piles and other functions. Due to the complexity of the system and the variety of peripherals, modular installation is mostly adopted, which can be selected according to various occasions and places. Through the data acquisition gateway, the information collected by lamp poles is sent to the cloud to realize remote supervision.
the smart light pole gateway can adopt the hardware of Qiyang IAC-IMX6UL, based on Cortex-A7 architecture, with the main frequency of 528MHz, which has the characteristics of low power consumption and high efficiency. The backplane and the core board are connected by B to B connectors, and all functional pins are led out. The backplane fully expands the interface resources, which is convenient for product development and can be customized into smart gateway products in the fields of energy management, electric power, communication, security, charging piles and so on.
The gateway designed based on Qiyang iMX6UL can realize 4G/3G, NB-IOT, Wi-Fi, LORA and other communication modes. The cloud platform integrates relevant circuit street lamp controller protocols through IAC-IMX6UL devices to realize remote centralized control and management of street lamps. For example, remote lighting control, lowering the brightness of lights during off-peak hours according to the traffic volume, and reducing energy consumption; Fault detection, abnormal alarm, etc. It supports up to 8 serial ports, which can connect various sensors of gas, sound and meteorology, and provide collection, analysis and storage of data including PM2.5, dust, smoke, temperature and humidity, air pressure, wind direction and speed, rainfall, etc., and transmit them to various government management platforms, providing objective basis for urban management. It can release and update information on LED screen, and has the functions of remote road monitoring, high-definition video feedback and graphic information push. It supports one-button alarm data transmission and interaction, and can access the GPS positioning function to help the public security department know the alarm location. Smart poles work outdoors all the year round, which requires high environmental adaptability. IAC-IMX6UL adopts industrial design (optional) to adapt to various harsh environments.
With the construction of 5G smart light poles, the government upgraded the existing traffic monitoring and intelligent sensing equipment. This move has upgraded the layout of roadside facilities for future vehicle-road coordination, real-time perception of urban traffic conditions and data sharing, thus promoting the landing of vehicle networking and autonomous driving technology. Smart cities will speed up the layout, and 5G smart light poles with multiple functions will be given more possibilities.