Communication Interface Gateway for Flexible Data Integration
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Solution Overview
Problem
Existing communication module systems place a high load on the CPU interface and are inflexible in data transmission, as they rely on multiple message memories and are defined for specific bus connections, limiting their ability to optimize data exchange and message transmission.
Innovation Solution
A communication interface element acts as a gateway interface between message memories, providing an additional data path for reassembly and combination of messages, using a data integration unit connected to the bus, which includes a coupling element and a module controller to manage data transmission, allowing flexible and efficient data integration and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple message memories are used for data transmission between communication modules, then data exchange capability is improved, but the load on the CPU interface increases and the system becomes less flexible
Solution Approach 1:
A gateway interface is introduced as an intermediary component between multiple message memories and the CPU interface. This gateway interface manages data transmission between communication modules, handling message routing and data exchange operations. By placing this intermediary layer, the CPU interface is protected from direct heavy loads while maintaining improved data exchange capability through the gateway's efficient message management.
2Reliability
If communication modules are defined for specific bus connections, then transmission reliability is improved, but adaptability to different bus configurations decreases
Solution Approach 1:
The communication module is designed with universal message memories that can interface with multiple types of bus connections through a gateway interface. The gateway interface provides adaptive routing capabilities, allowing the same message memory structure to work reliably across different bus configurations (CAN, LIN, FlexRay, etc.). This multi-functional design maintains transmission reliability while enabling adaptability to various bus topologies and protocols.
Solution Approach 2:
The system implements dynamic message routing through the gateway interface, which can adaptively direct messages between different bus connections based on current configuration requirements. The gateway interface dynamically manages message paths, allowing the communication module to reconfigure itself for different bus scenarios while maintaining reliable transmission. This dynamic capability enables the system to switch between fixed and flexible routing modes as needed.
3Reliability
If data transmission follows fixed protocols with predefined time slots, then deterministic communication is improved, but flexibility in data integration decreases
Solution Approach 1:
The data transmission system is segmented into two functional layers: a lower layer that handles deterministic time-slot-based protocol communication (CAN, TTCAN, FlexRay) and an upper gateway interface layer that provides flexible data integration. The message memories are divided into separate message queues that can be independently managed. This segmentation allows deterministic communication at the protocol level while enabling flexible data integration and message combining at the gateway level, resolving the contradiction between reliability and adaptability.
Data Source
AI summary
A communication module system has an interface module for interconnection with at least one communication module, the interface module containing an input, via which the interface module receives first data and/or messages, a first transmission path and a second transmission path being provided in the interface module, a coupling element being provided in the second transmission path, which coupling element is implemented in such a way that the first data and/or messages are at least partially combined to form second data and/or messages.