Standalone Emergency Call Control Unit Point-to-Point Interface
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Solution Overview
Problem
Existing emergency call systems in vehicles require significant effort and resources to develop and manufacture due to the need to accommodate various vehicle and on-board network variants, leading to increased complexity and costs.
Innovation Solution
Implementing an emergency call control device with a point-to-point interface that directly communicates with safety control units, eliminating the need for data bus integration and allowing for independent installation and operation, thereby simplifying and cost-reducing the emergency call functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If emergency call control device is integrated into vehicle data bus system, then communication with safety control units is enabled, but device complexity and manufacturing cost increase due to need to meet various vehicle manufacturer requirements and adapt to different vehicle and on-board network variants
Solution Approach 1:
The emergency call control device is separated from the vehicle data bus system into an independent standalone unit. This segmentation allows the emergency call device to operate independently without being constrained by various vehicle manufacturer requirements and data bus protocols, thereby reducing device complexity while maintaining communication reliability through dedicated point-to-point interfaces with safety control units.
2Adaptability or versatility
If emergency call control device communicates via vehicle data bus, then integration with safety control units is achieved, but manufacturing cost and development effort increase due to need to adapt to different vehicle and on-board network variants
Solution Approach 1:
The emergency call control device is extracted from the vehicle data bus communication system and implemented as a standalone unit with direct point-to-point interfaces to safety control units. This extraction eliminates the need to adapt to different vehicle and on-board network variants, significantly simplifying manufacturing and development while maintaining the ability to communicate with safety control units for emergency call functionality.
3Adaptability or versatility
If separate emergency call control device is implemented, then independence from vehicle data bus variants is achieved, but communication interface complexity may increase
Solution Approach 1:
The emergency call control device uses simplified point-to-point communication interfaces specifically designed for direct communication with safety control units. By focusing the communication interface design on this specific local requirement rather than general data bus compatibility, the interface complexity is minimized while achieving independence from vehicle data bus variants.
Data Source
Figure 1
AI summary
The invention relates to an emergency call control unit for a vehicle, in particular a motor vehicle, comprising a communication module (4), which, when the emergency call control unit (3) in the vehicle is operated, establishes a communication connection (C) with an external location (6) outside the vehicle as a response to the receipt of one or more trigger signals (TR) of at least one safety control unit (2) in the vehicle. The emergency call control unit (3) according to the invention comprises at least one point-to-point interface (IF2) for communication with the at least one safety control unit (2), wherein the one or more trigger signals (TR) of the at least one safety control unit (2) can be received by means of the at least one point-to-point interface (IF2).