IoT Ranging Device Time Slot Allocation for Signal Collision Avoidance
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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 are essential for enabling advanced smart environments that require efficient data collection, processing, and decision-making in real-time.
Innovation Solution
A time-synchronous communication IoT network using distributed IoT devices that employ IEEE1588 Precision Time Protocol (PTP) for clock synchronization, allowing for asynchronous communication links and avoiding interference through assigned time slots, enabling effective data collection and processing in smart environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If distributed IoT devices communicate asynchronously in a 5G network, then device connectivity and data collection capability improve, but signal interference and collision increase
Solution Approach 1:
The patent implements time-synchronized communication where devices transmit data in assigned time slots rather than continuously or completely asynchronously. This periodic transmission pattern reduces signal interference while maintaining high device connectivity, as devices know when to transmit and when to listen, avoiding collisions.
Solution Approach 2:
The system performs preliminary synchronization of clocks across all IoT devices before data transmission begins. By pre-synchronizing time references using IEEE1588 PTP protocol, devices can autonomously determine their transmission windows without real-time coordination, preventing interference while maintaining asynchronous operation benefits.
2Reliability
If time synchronization protocol is implemented across all IoT devices, then communication coordination improves, but system complexity and processing overhead increase
Solution Approach 1:
The patent introduces a centralized time server as an intermediary that distributes synchronized time references to all IoT devices. This mediator handles the complex synchronization calculations and protocol management, while individual devices only need to receive and follow time commands, significantly reducing per-device complexity while maintaining high communication reliability.
3Quantity of substance
If more sensors and IoT devices are deployed in smart environments, then data collection capability improves, but network management and data processing difficulty increase
Solution Approach 1:
The patent segments the large-scale IoT network into smaller management domains or clusters, each with its own time server and coordination mechanism. This segmentation allows independent management of device groups, reducing overall network management complexity while enabling deployment of large numbers of sensors across multiple segments.
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 application discloses a time synchronous communication IoT network and IoT ranging device to monitor a smart environment. IoT ranging device uses a time of day (TOD), an absolute time, and a time slot assigned to it by IoT network for ranging in the smart environment in order to avoid interference and collision.