Monitoring System Controller Power Reduction via Segmented Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In battery management systems, the controller's power consumption is high when the monitored device is in a non-operating state due to maintaining the same communication frequency as in the operating state, which is inefficient and increases energy usage.
Innovation Solution
The system switches to a communication mode where monitoring devices form connections with each other, with one acting as a master and another as a slave, and the controller disconnects or reduces communication frequency with them, allowing monitoring devices to collect and share data less frequently, thereby reducing the controller's power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the controller maintains communication connections with all monitoring devices in the non-operating state, then monitoring reliability is improved, but power consumption increases
Solution Approach 1:
The monitoring devices are divided into communication masters and communication slaves, creating segmented communication roles. This segmentation allows the controller to disconnect from individual devices while maintaining system-wide monitoring through peer-to-peer communication between monitoring devices.
Solution Approach 2:
Monitoring devices act as intermediaries to relay information between each other and the controller. When the controller disconnects from a monitoring device, that device can still communicate with others in the network, maintaining monitoring coverage without requiring direct controller connection.
2Loss of information
If the controller performs frequent communication with monitoring devices in the non-operating state, then data freshness is improved, but energy efficiency deteriorates
Solution Approach 1:
Communication between monitoring devices and the controller occurs periodically rather than continuously. The system transitions from frequent communication in the operating state to less frequent periodic communication in the non-operating state, reducing energy consumption while maintaining adequate data freshness.
Solution Approach 2:
The communication frequency dynamically adjusts based on the operational state of the monitored device. In the non-operating state, communication frequency is reduced compared to the operating state, optimizing energy efficiency while adapting to the reduced need for real-time monitoring.
3Productivity
If monitoring devices establish peer-to-peer communication connections, then controller communication load is reduced, but communication system complexity increases
Solution Approach 1:
Asymmetric communication roles are assigned where each monitoring device has one communication master connection and one communication slave connection. This asymmetric structure simplifies the overall system by creating clear hierarchical relationships while enabling distributed monitoring capabilities.
Solution Approach 2:
Each monitoring device is designed to perform multiple communication functions - acting as both a communication master to other devices and a communication slave to the controller or other monitoring devices. This multi-functionality reduces the need for dedicated hardware for different communication modes.
Data Source
AI summary
A monitoring system includes monitoring devices and a controller configured to wirelessly communicate with the monitoring devices to acquire monitoring information of a monitored device. In a non-operating state of the monitored device, the monitoring devices establish communication connections between the monitoring devices and periodically perform communication through the communication connections. One monitoring device acts as a communication master and another one monitoring device acts as a communication slave in each of the communication connections. Each of the monitoring devices acts as a communication master for another of the monitoring devices and also as a communication slave for another of the monitoring devices. In the non-operating state of the monitored device, the controller disconnects a communication connection between the controller and each of the monitoring devices, or performs communication with at least one of the monitoring devices less frequently than the communication between the monitoring devices.