Solution of Industrial Switch in Smart Light Pole System

With the construction of smart cities, the development trend of cities towards smart and digital is becoming more and more obvious. Various poles with different functions exist at the same time, which not only causes repeated construction, leads to waste of social resources, but also seriously affects the appearance of cities. In order to avoid waste of resources and improve the city appearance, vigorously developing smart light poles has become an important task of smart city construction.

According to the statistics of relevant data, in December 2021, there will be 40 smart light poles in China, with a project budget of 330 million, and 3479 smart light poles are planned to be built. It is mainly distributed in Zhejiang, Jiangsu, Guangdong, Henan, Shandong and other provinces. Jiangsu is far ahead of other provinces with 149.42 million yuan. The market scale of smart light poles will continue to expand in 2022.

Smart light pole is the general name of pole/tower and other facilities that comprehensively carry a variety of devices and sensors and have intelligent capabilities, including but not limited to communication pole/tower, street light pole and monitoring pole. The functions of smart light poles are determined by the devices and sensors attached to them. These devices and sensors can access networks and platforms through various communication technologies, and provide rich intelligent applications with the help of Internet, artificial intelligence, big data and other technologies. As a new entrance to a new smart city, smart light poles integrate new technologies such as base stations, smart lighting, smart security, smart weather, information release, charging piles, people vehicle road coordination equipment, and big data and artificial intelligence to collect information at the front end and provide various urban big data supports for the Internet of Things platform at the rear end. Under the strategic deployment of promoting new infrastructure in China, smart light poles have become the public infrastructure of urban information construction in the era and an important carrier of building a new smart city.

Network topology of industrial switch in smart light pole system

Smart light poles are deployed along municipal roads, with built-in access to industrial switches, downlink connection to a variety of data acquisition equipment, and uplink connection to the convergence industrial switches; Converge industrial switches to access urban wide area network nearby; The data is collected to the data center through the MAN.

Shenzhen Houshi Network Technology Co., Ltd. focuses on the R&D and manufacturing of industrial switches and media converters, providing high-performance and stable industrial network transmission equipment for the communication transmission layer of the smart light pole system.

Solution of Houshi Industrial Switch in Smart Light Pole System

In the solution provided by Houshi, a din rail layer 2 managed industrial switch is placed in each smart light pole, and multiple 10/100/1000M electrical ports and gigabit SFP optical ports are provided according to customer requirements. The sensor, camera, walkie talkie, LED display screen, wireless AP and other subsystem terminals on the pole are all connected to the electrical port of the industrial switch through RJ45 network cable, and form a gigabit fast optical fiber self-healing ring network through the gigabit optical port of the industrial switch and other industrial switches in the nearby poles. The industrial switch in the light pole at one of the intersections in the ring network is used as the aggregation switch, and another optical port is used to transmit back to the control center through the optical cable of the operator.

The control center is equipped with a Houshi IS6000 series core layer 3 industrial switch, which can provide 4 10 gigabit optical ports+8 gigabit combo optical multiplexer ports+16 gigabit electrical ports. The IS6000 series industrial switch is used to connect the subsystem servers, work stations, system center LED display screens and other equipment in the control center.

This communication solution transmits data through optical fiber+gigabit Ethernet. The wired connection is more reliable, more stable, and covers a wider range. The solution uses high-performance industrial switches, which meet various industrial standards, and can fully respond to various impacts and interference in outdoor practical applications. It also uses one button fast ring network technology, with self-healing time less than 20ms, It greatly improves the stability of the system and ensures the network bandwidth requirements and system scalability.

In addition, in the smart light pole solution, the industrial switch equipment divides ports through VLAN, and each service port corresponds to each system, so as to realize the non interference of multi system data and the data isolation of multi systems. In view of the time synchronization accuracy requirements of the distributed control system, the scheme also adopts the precise clock synchronization protocol of the networked measurement and control system (IEEE 1588 precise time protocol), which can solve the uncertainty of network transmission delay in the distributed network, resulting in poor synchronization accuracy triggered by network commands; Thus, the accuracy of data exchange is improved and network exchange with large amount of data is supported.

As a leader in the field of industrial switch communication, we specialize in formulating various smart light pole schemes, which can be applied to municipal roads, scenic spots, parks, parks, etc. to achieve intelligent control of different urban scenes.