IoT Human-Machine Interface Dynamic Channel Subscription
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Solution Overview
Problem
Traditional IoT systems face challenges in efficiently managing and controlling a large number of terminal devices due to limited subscription channels, leading to increased computing loads and security concerns.
Innovation Solution
The IoT system employs a human machine interface device that determines a subscription sequence based on priority information for control commands, dynamically subscribing to multiple communication channels to transmit commands to a cloud device, which then distributes them to terminal devices, effectively managing and controlling a large number of devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of terminal devices increases beyond the limit of subscription channels, then the system can connect more devices, but the computing load of the human machine interface device exceeds the load limit causing security concerns
Solution Approach 1:
The patent introduces a cloud device as an intermediary between the human machine interface device and terminal devices. The cloud device receives control commands from the human machine interface device and distributes them to multiple terminal devices, thereby reducing the computing load on the human machine interface device while maintaining security and enabling control of a large number of devices.
2Ease of operation
If the human machine interface device controls all terminal devices directly through subscription channels, then control is direct, but the number of subscription channels is limited and cannot efficiently manage large numbers of devices
Solution Approach 1:
The patent segments the control function by separating the human machine interface device from direct control of terminal devices. Instead of one-to-many direct control, the system implements a distributed control architecture where the cloud device handles device management, allowing the human machine interface device to maintain ease of operation while the system as a whole achieves high productivity in managing large numbers of devices.
3Productivity
If the human machine interface device subscribes to multiple communication channels simultaneously, then more commands can be transmitted, but channel resources are wasted when not all channels are actively used
Solution Approach 1:
The patent implements dynamic channel subscription where the human machine interface device subscribes to communication channels based on real-time needs. The cloud device manages channel allocation dynamically, subscribing to channels only when commands need to be transmitted to specific terminal devices. This dynamic approach increases command transmission capacity while avoiding channel resource waste by unsubscribing from inactive channels.
Data Source
AI summary
An Internet of Things (IoT) system is provided. The IoT system includes a plurality of terminal devices, a cloud device, and a human machine interface device. The cloud device is communicatively connected to the terminal devices. The human-machine interface device is communicatively connected to the cloud device via a plurality of first communication channels, and is used for determining a subscription sequence according to a piece of priority information of a plurality of control commands. The human-machine interface device schedules and dynamically subscribes to the first communication channels according to the subscription sequence, so as to transmit the control commands to the cloud device through different first communication channels according to the subscription sequence, so that the cloud device transmits the control commands to the corresponding terminal devices.