Remote LTE Module for Vehicle Receiver Systems
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Solution Overview
Problem
Existing receiver devices in vehicles face challenges with long coaxial cable routing for high-frequency signals, leading to high costs, thermal losses, and reduced reception performance due to the need for multiple cables and accessibility for software updates and SIM card management.
Innovation Solution
A receiver device with a remote receiver module and system, where high-frequency signals are processed and transformed in a module located close to the antenna, reducing cable length and weight by using a digital data bus and power supply line, and allowing for separate installation of the receiver system and module to minimize high-frequency interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the receiver device is placed close to the antenna to reduce cable length, then thermal losses and signal degradation are reduced, but the device becomes difficult to access for SIM card insertion and software updates
Solution Approach 1:
The receiver device is divided into two separate units: a remote receiver module positioned near the antenna for signal processing, and a separate control unit housing that provides accessible interfaces for SIM card insertion and software updates. This segmentation allows each component to be optimally positioned for its specific function.
Solution Approach 2:
A communication interface (such as a USB connection or wireless communication protocol) serves as an intermediary between the remote receiver module and the control unit housing, enabling software updates and configuration changes without requiring physical access to the remote module near the antenna.
2Adaptability or versatility
If multiple coaxial cables are used for multiple antennas and receivers, then signal reception capability is improved, but cable weight, cost, and routing complexity increase significantly
Solution Approach 1:
Multiple coaxial cable connections are consolidated into a single communication interface between the receiver module and control unit housing. The receiver module can process signals from multiple antennas using internal signal routing and processing, eliminating the need for separate external coaxial cables for each antenna-receiver pair.
Solution Approach 2:
The single communication interface between the control unit housing and receiver module serves multiple functions: power supply, data communication for software updates, and signal processing coordination, replacing what would otherwise require multiple separate cable connections.
3Device complexity
If the receiver module is integrated into the same housing as the receiver system, then device complexity is reduced, but thermal losses from signal processing increase
Solution Approach 1:
The system is segmented into a receiver module that performs high-frequency signal processing near the antenna (generating heat) and a separate control unit housing that handles low-frequency control and user interface functions. This physical separation isolates thermal sources from sensitive electronic components.
Solution Approach 2:
The receiver module near the antenna is designed with local thermal management capabilities (such as heat sinks or thermal conduction paths) to dissipate heat generated by high-frequency signal processing, while the control unit housing maintains a thermally stable environment for sensitive control electronics.
Data Source
AI summary
A receiver device in a vehicle includes a receiver system and a receiver module remote from the receiver system. A plurality of high-frequency signals are received or emitted via at an antenna attached to the receiver module. The high-frequency signals are transformed in the receiver module and forwarded to the receiver system.