Wireless Battery Communication Chain With Error Node Detection
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Solution Overview
Problem
The complexity of wired connections in battery management systems for wireless communication systems increases production costs and affects reliability, necessitating a mechanism for detecting and recovering from communication interruptions.
Innovation Solution
A wireless communication system with a control substrate and wireless communication devices forming a chain topology, using antennas for signal transmission and reception, and error detection packets to identify and locate communication errors, allowing for recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connections are used to connect batteries to monitor circuit board, then monitoring reliability is improved, but device complexity and production cost increase
Solution Approach 1:
The patent replaces the mechanical wired connection system with a wireless communication system. The battery management system uses wireless communication modules to transmit monitoring data from battery nodes to the control circuit board, eliminating the need for physical wire connections between batteries and the monitor circuit board.
Solution Approach 2:
The patent extracts the monitoring function from the physical connection structure by implementing independent wireless communication modules at each battery node. Each node can independently transmit data wirelessly, removing the requirement for complex wired interconnections while maintaining monitoring capability.
2Reliability
If wired connections are used to connect batteries to monitor circuit board, then communication stability is improved, but production cost increases
Solution Approach 1:
The patent replaces expensive wired connections with cost-effective wireless communication modules. The wireless transmission eliminates the need for extensive wiring harnesses, connection terminals, and associated assembly processes, significantly reducing material and labor costs while maintaining communication stability through protocol-level error handling.
Solution Approach 2:
The patent changes the communication medium from physical electrical connections to electromagnetic wave transmission. This parameter change enables the use of standardized, low-cost wireless modules that can be mass-produced and integrated into battery nodes without requiring complex wiring assemblies.
3Device complexity
If wireless communication is used to connect batteries, then device complexity is reduced, but communication interruption risk increases
Solution Approach 1:
The patent implements a feedback mechanism where the control circuit board sends monitoring requests to battery nodes and waits for responses within a predetermined time window. If no response is received, the system determines that a communication interruption has occurred and can trigger appropriate error handling or node isolation procedures.
Solution Approach 2:
The patent establishes communication protocols and timing mechanisms in advance, including predetermined response time thresholds and error detection procedures. This preliminary setup enables the system to quickly detect and respond to communication interruptions without requiring complex real-time analysis.
4Reliability
If error detection packets are transmitted to locate errors, then communication interruption detection is improved, but energy consumption increases
Solution Approach 1:
The patent implements error detection packets that are transmitted only when communication interruptions are suspected or during specific diagnostic conditions, rather than continuously. This partial action approach maintains error detection capability while significantly reducing overall energy consumption compared to constant transmission.
Data Source
AI summary
A wireless communication system is provided. The wireless communication system includes a control substrate and wireless communication devices. The wireless communication devices wirelessly communicatively connect to each other in sequence to form a first chain. The wireless communication devices at the two ends of the first chain are respectively wirelessly communicatively coupled to the control substrate. The control substrate transmits the control signal to one of the wireless communication devices that are directly coupled to the control substrate and receives the response signal from another one of the wireless communication devices that are directly coupled to the control substrate. The control substrate determines whether communication among the wireless communication devices is abnormal based on the transmission and reception status of the control signal and the response signal. The control substrate transmits two error detection packets to locate the wireless communication devices having errors, when the communication is abnormal.