Modular IoT Sensor Architecture With Custom USB-C Pin Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing IoT sensor systems face challenges in flexibility and convenience, as users find it difficult to replace or add sensing devices due to the need for specific configuration of transmission lines according to different data transmission protocols.
Innovation Solution
A modular IoT sensor system is introduced, featuring a network module with universal serial bus type-C connectors and expanded sensor modules with matching connectors, allowing for detachable connections and flexible configuration. The system uses a custom pin definition that differs from the standard USB type-C specification, enabling the integration of various data transmission protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If transmission lines are configured according to different data transmission protocols of various sensing devices, then data transmission compatibility is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent implements a universal transmission line configuration where all sensing devices use the same connector type (USB Type-C) and follow a unified pin definition standard. This allows a single cable design to work with multiple different sensor protocols (I2C, SPI, UART, etc.) by mapping them to standardized pin functions, eliminating the need for protocol-specific cable configurations and achieving multi-functionality in a single universal interface.
Solution Approach 2:
The patent changes the parameter standardization approach by establishing a fixed pin definition mapping where specific physical pins are assigned to specific functions (e.g., pin 1 for VCC, pin 2 for GND, pin 3 for SDA/SCL, etc.). This parameter standardization allows different communication protocols to operate over the same physical connection by changing the logical layer configuration rather than the physical layer, resolving the contradiction between compatibility and complexity.
2Measurement precision
If transmission lines are configured according to different data transmission protocols, then sensing data transmission accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The patent creates a universal interface standard where USB Type-C connectors with a standardized pin definition enable users to interchange different sensing devices without any configuration or cable changes. The unified physical and logical interface allows plug-and-play operation while maintaining protocol-specific data transmission accuracy through standardized signal routing and pin assignments.
Solution Approach 2:
The patent segments the communication protocol layer from the physical connection layer. The physical layer uses a unified USB Type-C connector with standardized pin definitions, while the protocol layer handles specific communication requirements. This segmentation allows users to change sensors at the application layer without affecting the physical connection, improving ease of operation while preserving transmission accuracy through protocol-specific handling.
3Ease of operation
If a modular design with detachable connectors is used, then ease of operation is improved, but reliability may deteriorate due to connection stability
Solution Approach 1:
The patent leverages the USB Type-C connector's inherent design features including reversible insertion orientation, magnetic alignment guides, and spring-loaded contact springs that maintain stable electrical connection. These universal design elements provide both the detachability needed for ease of operation and the mechanical stability required for reliable data transmission, resolving the contradiction between modular flexibility and connection reliability.
Data Source
AI summary
A modular IoT sensor system for Internet of things includes a network module and an expanded sensor module. The expanded sensor module includes a male connector and a female connector respectively disposed in two connection surfaces of the expanded sensor module, configured to detachably connect to a female connector of the network module. Shape and size of the female connector of the network module and the male connector and the female connector of the expanded sensor module conform to a USB type-C specification and pin definitions thereof are complied with a first pin definition different from USB type-C specification.