Embedded RF Antenna Integration in Digital Tacho Graph Apparatus
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Solution Overview
Problem
Separate installation of digital tacho graph (DTG) apparatuses in vehicles leads to increased noise interference and reduced transmission and reception sensitivity of wireless communication signals, along with increased design costs and time due to multiple connection structures between RF antennas and communication modules.
Innovation Solution
Integration of communication parts necessary for transmitting and receiving RF signals within a DTG apparatus, utilizing a metal terminal connected to a printed circuit board pattern unit and an embedded RF antenna, which is patterned on the inside of a front case unit, reducing the need for external antennas and their connection structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple external RF antennas and in-vehicle RF antennas are installed separately in the vehicle, then wireless communication functions are supported, but noise interference increases and transmission/reception sensitivity is reduced
Solution Approach 1:
The patent combines multiple separate DTG apparatuses into a single integrated apparatus. The first DTG apparatus and second DTG apparatus are merged into one unified device, eliminating the need for separate external RF antennas and in-vehicle RF antennas. This integration reduces noise interference between different wireless communication environments while maintaining all required wireless communication functions, thereby improving signal transmission and reception sensitivity.
2Adaptability or versatility
If multiple external RF antennas and in-vehicle RF antennas are installed separately, then wireless communication coverage is enhanced, but the number of connection structures increases leading to higher design cost and time
Solution Approach 1:
The patent integrates multiple DTG apparatuses into a single unified device, consolidating multiple RF antenna connection structures into one integrated system. This merging reduces the total number of connectors and connection points required, thereby lowering design complexity, reducing design cost and time, while maintaining comprehensive wireless communication coverage through the integrated antenna system.
3Adaptability or versatility
If separate DTG apparatuses are installed in the vehicle, then specific communication functions are fulfilled, but installation and maintenance require more human labor
Solution Approach 1:
The patent merges separate DTG apparatuses into a single integrated unit, reducing the number of installation steps and maintenance operations required. Instead of installing and maintaining multiple separate devices with individual connection structures, technicians only need to handle one integrated apparatus, thereby significantly reducing human labor for both installation and maintenance while preserving all necessary communication functions.
Data Source
AI summary
A digital tacho graph (DTG) apparatus for vehicles is disclosed. The DTG apparatus includes a metal terminal having one end connected to a printed circuit board (PCB) pattern unit connected to the wireless communication module, an RF antenna embedded inside the DTG apparatus and having one end connected to the other end of the metal terminal, and a front case unit, on which the other end of the RF antenna is formed by patterning, the front case unit serving as a front case of the DTG apparatus and enclosing the RF antenna inside the DTG apparatus. The wireless communication module and the embedded RF antenna are integrated, thereby reducing working time, increasing transmission and reception sensitivity, and reducing cost.