Communication Transceiver for RAW Data Service-Oriented Communication
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Solution Overview
Problem
In-vehicle communication systems face challenges in implementing service-oriented communication due to limited processing capabilities of microcontrollers, which hinder the integration of protocol stacks, especially in devices that only output RAW data.
Innovation Solution
A communication transceiver with a service control unit and interface unit is employed to convert communication data between different protocols, enabling service-oriented communication even in devices without a protocol stack, using setting information to facilitate data conversion and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If protocol stacks are integrated into microcontrollers to enable service-oriented communication, then communication capability is improved, but device complexity increases
Solution Approach 1:
A communication transceiver is introduced as an intermediary device between the microcontroller and the network. The transceiver handles all protocol stack functions externally, allowing the microcontroller to remain simple while still achieving service-oriented communication capability.
Solution Approach 2:
The communication functionality is segmented into separate components: the microcontroller handles only basic data output, while the communication transceiver handles protocol conversion and network communication. This division allows each component to be optimized independently.
2Adaptability or versatility
If protocol conversion is performed by relay ECUs, then service-oriented communication is enabled, but processing load increases
Solution Approach 1:
The communication transceiver acts as a dedicated intermediary that handles protocol conversion. By isolating the conversion function in a separate device with appropriate processing power, the microcontroller's processing load is reduced while maintaining protocol compatibility.
3Adaptability or versatility
If service-oriented communication is implemented in devices with limited processing capabilities, then system versatility is improved, but implementation difficulty increases
Solution Approach 1:
The communication transceiver serves as a pre-configured intermediary that provides service-oriented communication capabilities without requiring the microcontroller to implement complex protocols. The transceiver handles all implementation complexities internally.
Solution Approach 2:
The communication transceiver is designed as a universal device that can interface with multiple different protocols and communication standards, allowing devices with limited processing capabilities to access diverse communication services through a single interface.
Data Source
AI summary
A communication transceiver is connected to a main control unit of a communication device. The communication transceiver includes a service control unit and a service interface unit. The service control unit transmits a service presentation message to the electronic control device conforming to a first protocol of service-oriented communication based on first setting information set in response to an instruction from the main control unit. When service-oriented communication is established, the service interface unit converts the communication data conforming to a second protocol received from the main control unit into the communication data conforming to the first protocol based on second setting information set in response to an instruction from the main control unit, and transmits a converted communication data to the electronic control device.