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DHSR
確定性HSR交換機IP內核
高可用性無縫冗余(HSR,IEC 62439-3-Clause 5)通過在環形網絡上雙向發送數據包來提供冗余。在環網內有中斷的情況下,具有HSR功能的目標節點始終會通過另一個端口接收幀。
IEC 62439-3-Clause 5標準定義了從環網接收流量的優先級。因此,計算在HSR環內傳遞消息的最壞情況是可行的。這種行為允許在某些實時環境中使用標準HSR。
但是,如果時序和帶寬使用限制很嚴格,則有必要在HSR節點上添加時序平面,以便按計劃的方式傳遞數據流量。IEEE 1588協議是構建確定性HSR解決方案的驅動力,該解決方案側重於諸如電氣或國防等關鍵性行業,其更傾向於比通用TSN解決方案更簡單的基於硬件的強大解決方案。
確定性HSR(DHSR)IP核是基於硬件的專有解決方案,針對可重構設備進行了優化,如果IEC發布了確定性高可用性無縫冗余的最終互操作性標準,則可以進行升級。

Key Features
- HSR中確定性的精確幀發送
- 基於精確時鐘同步的循環時間分段多路覆用
- HSR/PRP交換機IP核中列出的常規功能
Keeping up with the times and innovating - Explore more potentials of TSN with Hongke
Time Sensitive Networking (TSN) is a new generation of network technology based on the evolution of the standard Ethernet architecture. It takes traditional Ethernet as the network foundation and provides a data link layer protocol specification for deterministic data transmission capability through mechanisms such as clock synchronization, data scheduling, and network configuration. Compared with traditional Ethernet, TSN can provide microsecond-level deterministic services, reduce the complexity of the entire communication network, and realize the convergence of information technology (IT) and operation technology (OT). With its precise clock synchronization, deterministic traffic scheduling, and intelligent and open operation and maintenance management framework, TSN can ensure the high-quality transmission of multiple business traffic in a common network, and it has both performance and cost advantages, and it is the development trend of the future network. This is the future trend of network development.
Currently, TSN technology has a high level of discussion in the automotive, industrial, rail transportation, and aerospace fields. As a non-vendor-bound real-time communication protocol, we believe that TSN technology has a good application prospect.
Welcome to contact us to explore and learn the integration of TSN technology with various industries, and actively promote more applications on the ground to jointly build a new world of intelligent interconnection.