Multi-Port Shared Memory Access for Parked Vehicle Sensor Data
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Solution Overview
Problem
Current memory subsystems for vehicle management systems face inefficiencies in data transfer, particularly when vehicles are parked or powered off, as existing methods require expertise for disconnection and are limited by cellular network signal strength and cost, making it difficult to access and transfer data from systems lacking connectivity.
Innovation Solution
Implementing a shared memory subsystem with multiple communication ports that allows the battery management system to access and transfer data from other subsystems, even when they are powered off, using a wireless network connection like WiFi, enabling efficient data access and transfer to cloud systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cellular network is used for data transfer, then data can be transferred from memory subsystem, but transfer is limited by signal strength and cost
Solution Approach 1:
The patent introduces a shared memory subsystem as an intermediary between vehicle management systems and cloud systems. This shared memory acts as a mediator that enables data transfer without relying on cellular network connectivity, thereby eliminating signal strength limitations while maintaining reliable data transfer capability.
2Reliability
If wired connection is used for data transfer, then data transfer is possible, but requires expertise for disconnection and is inefficient when parked
Solution Approach 1:
The shared memory subsystem serves as an intermediary that eliminates the need for physical disconnection operations. Data is written to the shared memory by one system and read by another system, removing the complexity of connection/disconnection operations while maintaining reliable data transfer.
Solution Approach 2:
The patent replaces the mechanical wired connection system with an electronic data sharing mechanism through shared memory. This substitution eliminates the need for physical plugging and unplugging operations, thereby improving ease of operation while maintaining data transfer reliability.
3Device complexity
If single-port memory device is used, then structure is simple, but cannot enable multi-system data access simultaneously
Solution Approach 1:
The patent implements a shared memory subsystem that can be accessed by multiple different systems simultaneously. This single memory structure serves multiple functions by enabling data sharing between vehicle management systems, battery management systems, and cloud systems, thereby improving adaptability without significantly increasing structural complexity.
Data Source
AI summary
Exemplary methods, apparatuses, and systems include a communication port manager for controlling communication of sensor data. The communication port manager receives a set of sensor data from a plurality of data sensors of a vehicle management system of a vehicle. The communication port manager writes the set of sensor data to memory of the memory subsystem. The communication port manager receives, from a battery management system, a request to read the sensor data. The communication port manager sends the set of sensor data to the battery management system, wherein the battery management system uses a wireless connection to send the sensor data to a cloud system.