All-optical solution for industrial plants

foreword

FOREWORD

Under the wave of Industry 4.0, traditional industrial plants are facing unprecedented challenges. With the deepening of intelligent manufacturing and the Industrial Internet of Things (IIoT), the dependence of industrial production on networks is increasingly increasing. However, traditional industrial networks suffer from complex wiring, insufficient bandwidth, difficult operation and maintenance, and poor anti-interference capabilities, which seriously restrict the improvement of industrial production efficiency and intelligent transformation. There is an urgent need for an efficient, stable, and flexible network solution, and all-optical networks have emerged.

PART.01 Project Background

Project Background

Industrial production is rapidly developing towards digitization and intelligence. A large number of smart devices, sensors, industrial cameras, and other devices are connected to the network, leading to an explosive growth in data volume. Taking automobile manufacturing as an example, an automated production line generates several GB of equipment operation data and quality inspection image data every minute. At the same time, application scenarios such as high-definition video surveillance and AGV/AMR intelligent logistics have raised higher requirements for the real-time and stability of the network. However, traditional copper cable networks have natural shortcomings in transmission distance, bandwidth capacity, and anti-interference ability, making it difficult to meet the growing network demands of industrial plants. All optical networks are becoming the "golden key" to solving the dilemma.

PART.02 Project Requirements

Project Requirements

A 100Mbps switch cannot meet the communication needs of machine vision and AGV clusters. To ensure high-definition video streaming and real-time interaction of large amounts of equipment data, it is necessary to support gigabit or even 10G bandwidth.

Multiple independent networks (production network, telephone network, monitoring network) are repeatedly wired, with a total cable length of over 100000 meters. The project construction period is long, and fault location is difficult. And the factory needs to support AI, VR, and AR technologies in the later stage, requiring the network to have high scalability.

Lay main optical cables along the cable tray in the factory ceiling to ensure the physical protection and signal transmission stability of the cables. For the production line area, the fiber to the machine (FTTR) method is used to directly lay the fiber to each device, reducing intermediate transfer links and minimizing signal loss. The optical splitter is installed in a dedicated fiber distribution box, which is reasonably arranged according to the distribution of the factory area, facilitating the fusion, distribution, and management of optical cables. OLT equipment is centrally deployed in the data center and installed in a rack, facilitating centralized management and maintenance of the equipment; POE ONU devices are installed near the devices using wall mounted or rail mounted installation based on their distribution, ensuring that the devices can access the network nearby.

Program features:

This solution uses an all-optical PON network to achieve "four in one", reducing cable investment by 80% compared to traditional solutions, and adapting industrial grade ONUs to meet the needs of multiple scenarios. With the help of OLT network management platform, fault location can be reduced to 5 minutes, and operation and maintenance are efficient. On the security level, the production and office networks are physically isolated, with a core OLT dual link hot backup and 20ms switching to ensure continuous network operation. Meanwhile, by optimizing the QoS of voice services through the SIP protocol, priority is given to ensuring call quality and comprehensively improving the performance of the factory network.