Internet Of Things 简明教程

IoT - CISCO Virtualized Packet Zone

思科虚拟化分组核心（VPC）是一项技术，为 4G、3G、2G、WiFi 和小型蜂窝网络提供所有核心服务。它将网络功能作为虚拟化服务提供，以允许更大的可扩展性和更快速、更低成本地部署新服务。它跨所有资源（无论是虚拟还是物理）分发和管理分组核心功能。其主要功能包括分组核心服务整合、动态扩展和系统敏捷性。

Cisco Virtualized Packet Core (VPC) is a technology providing all core services for 4G, 3G, 2G, WiFi, and small cell networks. It delivers networking functionality as virtualized services to allow greater scalability and faster deployment of new services at a reduced cost. It distributes and manages packet core functions across all resources, whether virtual or physical. Its key features include packet core service consolidation, dynamic scaling, and system agility.

virtualization

其技术通过提供网络功能虚拟化、SDN（软件定义网络）和快速网络系统部署来支持物联网。这一点至关重要，因为其虚拟化和 SDN 支持低功耗、高流量网络，以及简单部署各种小型设备。通过整合到单一系统和单一技术以连接和集成所有元素，它消除了许多物联网系统以及冲突中的微小细节。

Its technology supports IoT by offering network function virtualization, SDN (software-defined networking), and rapid networked system deployment. This proves critical because its virtualization and SDN support low-power, high flow networking, and the simple deployment of a wide variety of small devices. It eliminates many of the finer details of IoT systems, and conflicts, through consolidating into a single system and single technology for connecting and integrating all elements.

Use Case : Smart Transportation

铁路运输提供了一个有效的例子来说明 VPC 的强大功能。VPC 解决的问题与安全性、移动性、效率和服务改进有关−

Rail transportation provides a viable example of the power of VPC. The problems VPC solves relate to safety, mobility, efficiency, and service improvement −

  1. Rail applications use their own purpose-built networks, and suffer from interoperability issues; for example, trackside personnel cannot always communicate with local police due to different technologies.

  2. Determining if passengers need extra time to board remains a mostly manual task.

  3. Data updates, like schedules, remain manual.

  4. Each piece of equipment, e.g., a surveillance camera, requires its own network and power source.

smart mrt

VPC 通过在标准网络上引入直接通信、更多和自动监控、通过智能标志的自动数据更新以及所有设备的原生 IP 网络以及基于以太网供电 (PoE) 技术来改善服务。这导致乘客感觉更安全，并享受到更好的服务质量。

VPC improves service by introducing direct communication over a standard network, more and automated monitoring, automatic data updates through smart signs, and native IP networks for all devices along with PoE (Power over Ethernet) technology. This results in passengers who feel safer, and enjoy a better quality service.