As the rail transit industry accelerates its upgrade toward intelligence and digitalization, massive time-series data generated by core systems such as train operation monitoring, intelligent dispatching, and video security has imposed stringent requirements on the reliability, environmental adaptability, and security of storage devices. Relying on the core technical strength and strict quality control system of its manufacturer, China Chips Star Semiconductor Co., Ltd., PG industrial-grade memory cards precisely meet the demands of rail transit scenarios, delivering a stable, secure, and high-efficiency storage solution for the industry.
The unique characteristics of rail transit scenarios dictate that memory products must meet standards far exceeding ordinary industrial-grade requirements, with the core focus on two dimensions: environmental adaptability and stable reliability. The specific requirements are as follows:
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Extreme Environment Adaptability
Rail transit equipment operates long-term in complex environments, so memory products must feature wide temperature tolerance, vibration resistance, electromagnetic interference (EMI) immunity, and durability under harsh working conditions.
- Temperature tolerance: The products must support a wide operating temperature range of -25℃~85℃ (extendable to -45℃~105℃), coping with low temperatures in northern winters, high temperatures in southern summers, and temperature fluctuations in train carriages, tunnels, and station equipment rooms.
- Vibration and shock resistance: They must pass rigorous tests to withstand vibration acceleration of over 10G and shock load of over 100G during train operation, ensuring stable data read/write performance amid jolting and braking.
- Triple protection & anti-corrosion/EMI performance: The memory cards should be dustproof, moistureproof, and mildewproof, with anti-sulfuration and EMI-resistant capabilities, adapting to harsh environments such as dusty tunnels and humid stations.
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24/7 Stable and Reliable Operation
Core systems including rail transit command and operation monitoring require uninterrupted year-round operation, so memory products must offer high durability and low failure rates.
- High read/write stability: They support high-concurrency data writing, meeting the daily storage needs of over 10TB of dispatching and video surveillance data without lag or packet loss.
- Comprehensive fault tolerance and protection mechanisms: Equipped with advanced ECC error correction technology, dynamic bad block management, and power-failure protection, the products ensure data integrity and prevent corruption during voltage fluctuations or sudden power outages. They also meet the requirement of MTBF (Mean Time Between Failures) exceeding one million hours, reducing operation and maintenance costs.
Developed and manufactured by China Chips Star Semiconductor Co., Ltd.—a national high-tech enterprise and a specialized, sophisticated, distinctive, and innovative enterprise—PG industrial-grade memory cards leverage the company’s strong R&D capabilities, high-quality supply chain resources, and strict quality control system to form core competitive advantages tailored for rail transit scenarios:
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Top-Tier Supply Chain & Technical Support: Guaranteeing Baseline Product Performance
PG industrial-grade memory cards adopt high-quality Kioxia (formerly Toshiba) wafers and customized master control chips co-developed with leading industry suppliers (e.g., StorArt), ensuring hardware-level stability and high performance.
- Integrated with advanced LDPC ECC error correction technology, they achieve an error correction capability of up to 16bit/1KB, effectively rectifying errors during data transmission and storage.
- The integration of dynamic and static wear-leveling algorithms and intelligent garbage collection algorithms significantly extends service life, with P/E cycles reaching over 3,500 times to meet the long-term operation needs of rail transit.
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Full-Scenario Environmental Adaptability: Ensuring Reliability Under Extreme Conditions
Backed by cutting-edge equipment in a 30,000-square-meter modern R&D and testing center, PG industrial-grade memory cards undergo rigorous environmental adaptability tests covering all complex working conditions of rail transit. Supporting a wide operating temperature range of -45℃~105℃, the cards maintain stable performance in frigid northern winters, scorching southern summers, and high-temperature tunnel environments.
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Stringent Quality Control & Compliance Certifications: Laying a Solid Foundation for Security Assurance
The production process of PG industrial-grade memory cards strictly complies with international standards, holding dual certifications of ISO9001 Quality Management System and IATF16949 Automotive Electronics Quality System, which serves as the qualification foundation for entering the high-standard transportation electronics sector. As one of only three semiconductor enterprises in Shenzhen accredited by the Ministry of Industry and Information Technology in 2023, the company’s product compliance and technical strength have gained authoritative recognition.
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Full Product Line Coverage & Flexible Supply Capacity
PG industrial-grade memory cards boast a comprehensive product portfolio, including industrial-grade TF cards, eMMC modules, industrial SSDs, and enterprise-grade BGA packages, with capacities ranging from 32GB to 2TB. These products precisely match the storage needs of diverse rail transit scenarios, such as turnstiles, PIS systems, wayside equipment, and on-board 3C monitoring systems.
- With a daily production capacity of over 100,000 units, the company can quickly respond to large-volume procurement demands of rail transit projects.
- It also offers firmware customization services based on project requirements, such as custom data destruction strategies and optimized read/write algorithms, enhancing scenario adaptability.
PG is emerging as a preferred brand for storage solutions in the rail transit industry. Moving forward, it will continue to drive innovation, deeply empower the intelligent development of rail transit, and provide more robust storage support for the construction of digital transportation.
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