High Concurrency

STM32 Gateway Performance Avalanche: Packet Loss and System Freeze with Multiple Connections, Resolved with LwIP and Custom Memory Pool

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STM32 Gateway Performance Avalanche: Packet Loss and System Freeze with Multiple Connections, Resolved with LwIP and Custom Memory Pool

This is a project experience shared by a colleague of mine. They developed an industrial gateway based on STM32F767 for a factory, which is used for: Collecting data from multiple Modbus/485 sensors Uploading data to the dispatch server via TCP/UDP protocol Supporting up to 32 devices connected simultaneously (LwIP + RAW API) Initial small-scale tests … Read more

Empowering the Internet of Vehicles | Smart Subway IoT System for Smoother Travel

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Empowering the Internet of Vehicles | Smart Subway IoT System for Smoother Travel

Industry Background With the continuous expansion of urban rail transit networks and the ongoing improvement of intelligence levels, subway IoT monitoring systems need to monitor and manage tens of thousands of key IoT devices in real-time, including environmental control systems, fire alarms, access control, and elevator operations. The massive time-series data generated by these devices … Read more

Why Eastern Airlines Chose MongoDB for Tech Selection

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Why Eastern Airlines Chose MongoDB for Tech Selection

“ At this year’s MongoDB World W016 conference, Huang Chong from China Eastern Airlines shared practical experience in using MongoDB, introducing how Eastern Airlines combines Spark and MongoDB to solve the challenges they face, as well as the specific steps, which sparked heated discussions. Background Introduction The deputy manager of the PSS department of Eastern … Read more