Switching Device for Dynamic Antenna Signal Linking
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Solution Overview
Problem
Existing solutions for wireless signal transmission in vehicles require multiple antennas, which occupy significant space and are difficult to install, especially in vehicles where space is limited, and often rely on mobile wireless modules to generate switching signals, limiting their applicability.
Innovation Solution
An apparatus with a switching device that establishes dedicated signaling links between multiple signal connections and fewer antenna connections based on detected transmission activity, allowing for reliable signal transmission and reducing the number of required antennas by using a control device to set switching states and connect primary and secondary connections to antennas dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one antenna is provided for each terminal, then reliable wireless connection is established, but space requirements and assembly effort increase significantly
Solution Approach 1:
Multiple antenna connections are merged into a single physical antenna through the switching device. The switching device dynamically assigns multiple signal connections to share the same antenna resource, reducing the total number of antennas required while maintaining reliable wireless connections for multiple terminals.
Solution Approach 2:
The system transitions from a static one-to-one antenna-terminal mapping to a dynamic many-to-one mapping. The switching device changes its configuration based on which terminals are actively transmitting, allowing flexible allocation of antenna resources to active terminals and reducing the number of antennas needed at any given time.
2Reliability
If multiple antennas are provided for multiple terminals, then signal transmission reliability is improved, but the number of components and device complexity increase
Solution Approach 1:
The switching device merges multiple antenna connections into a single antenna interface, reducing the number of components. By dynamically switching which signal connections are assigned to the antenna based on transmission activity, the system maintains reliable signal transmission while reducing overall system complexity.
Solution Approach 2:
A single antenna is made universal by allowing it to serve multiple terminal connections through the switching device. The antenna can be dynamically assigned to different terminals based on their transmission activity, making one antenna perform the function of multiple dedicated antennas.
3Ease of operation
If a switching device is controlled by a mobile wireless module within the same device, then switching functionality is achieved, but the field of application is limited
Solution Approach 1:
The control device acts as an intermediary between the transmitting activity detection and the switching device. Instead of requiring the switching device to be integrated with a mobile wireless module, the control device receives transmission activity information and generates switching signals to control the switching device, enabling the system to work with various terminal types and communication standards.
Solution Approach 2:
The system uses its own transmission activity detection capability to automatically control the switching device. The transmitting activity detection detects which terminals are actively transmitting and the control device automatically generates switching signals accordingly, eliminating the need for external control modules and expanding applicability.
Data Source
AI summary
Signals are transmitted from and to a plurality of terminals. The apparatus has a plurality of signal connections and at least two antenna connections. One signal connection is a main connection or a secondary connection. At least one main connection for each terminal can be connected. The number of signal connections is greater than the number of antenna connections. At least one linking element allows each main connection to be electrically linked to each antenna connection. A device for detecting transmitting activity detects a transmitting main connection based on a signal property of a signal, wherein the signal is present on a signal link section which is linked to the main connection. Signaling links between the signal connections and the antenna connections can be established on the basis of the detected transmitting main connections and the number of signal connections assigned to a terminal.