5G IoT Network Time Synchronization for Collision-Free Navigation
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Solution Overview
Problem
Existing IoT solutions face challenges in managing large numbers of connections, security, and new standards, particularly in 5G networks, which require efficient time synchronization and data communication to enable seamless operation of smart environments and devices.
Innovation Solution
The implementation of a time synchronous communication IoT network using distributed IoT devices that employ IEEE1588 Precision Time Protocol (PTP) for clock synchronization, allowing IoT devices to obtain time of day from the network or other devices, and utilize Ethernet packet protocols for asynchronous communication, ensuring accurate and reliable data transmission and collision-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If distributed IoT devices are deployed in smart environments, then the ability to capture and transmit data is improved, but managing large numbers of connections and ensuring security becomes more difficult
Solution Approach 1:
The system segments the large number of IoT devices into groups managed by border routers, which act as intermediary nodes. Each border router manages a subset of devices and communicates with the network, dividing the complex connection management task into smaller, manageable units.
Solution Approach 2:
Border routers serve as intermediary devices between IoT devices and the network. They handle authentication, time synchronization, and data transmission, reducing the direct connection management burden on the core network and improving security through centralized control at the edge.
2Measurement precision
If IEEE1588 Precision Time Protocol is used for clock synchronization, then time synchronization accuracy is improved to nanosecond level, but network complexity and data communication requirements increase
Solution Approach 1:
IoT devices autonomously obtain time synchronization from border routers using IEEE1588 PTP without requiring manual configuration or complex external time servers. The border routers automatically provide time stamps and synchronization signals, enabling devices to self-synchronize upon joining the network.
Solution Approach 2:
Time synchronization is established as a preliminary action when devices join the network. Border routers pre-synchronize devices before they engage in data transmission, ensuring that all timing-critical operations occur on a pre-established synchronized time base, simplifying subsequent communication.
3Reliability
If Ethernet packet protocols are used for asynchronous communication, then data transmission reliability is improved, but processing overhead and communication latency increase
Solution Approach 1:
The system uses different communication protocols for different functions: Ethernet packet protocols for reliable data transmission and IEEE1588 PTP for time-critical synchronization. This local quality approach optimizes each communication channel for its specific purpose, reducing overall latency while maintaining reliability where needed.
Solution Approach 2:
Time synchronization occurs periodically using IEEE1588 PTP, while data transmission uses event-driven Ethernet packets. This periodic synchronization combined with event-driven data communication reduces processing overhead by only initiating data transmission when necessary, rather than continuous polling.
4Reliability
If border routers perform authentication and time synchronization, then security and operational reliability are improved, but device complexity and processing requirements increase
Solution Approach 1:
Border routers are designed as multi-functional devices that simultaneously perform authentication, time synchronization, data transmission, and network management. This universality consolidates multiple functions into a single device type, reducing overall system complexity despite the increased capabilities of individual border routers.
Data Source
AI summary
Developing intelligent systems which take into consideration the economical, environmental, and safety factors of the modern society, is one of the main challenges of this century. Progress in the fields of mobile robots, control architectures, artificial intelligence, advanced technologies, and computer vision allows us to now envisage a smart environment future.The rise of the connected objects known as the “Internet of Things” (IoT) will rival past technological marvels. This disclosure introduces a time synchronous communication IoT network and use of time of day by various objects to navigate freely, without interference and collision in a smart environment.