Construction Machine Antenna Layout for Safer Cab Space Use
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Solution Overview
Problem
Conventional construction machines face challenges in placing antennas, such as GPS antennas, in a way that minimizes interference with the human body while effectively utilizing the limited space in the driving unit.
Innovation Solution
The antenna is positioned in front of the operation lever and on the outer side of the driving base, with part of it overlapping with a monitor, and supported by the air conditioning duct and duct support frame, allowing it to be placed apart from the driver's seat and utilizing the space efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the antenna is placed close to the driver's seat to utilize limited space, then space utilization is improved, but the harmful influence of radio waves on the operator increases
Solution Approach 1:
The antenna is extracted from the conventional location inside the driver's cab and repositioned to the outer side of the driving base. This spatial extraction removes the antenna from proximity to the operator, eliminating radio wave exposure while preserving space efficiency through strategic placement in the available outer region of the driving base.
Solution Approach 2:
The antenna placement transitions from a two-dimensional arrangement within the cab interior to a three-dimensional configuration extending to the outer side of the driving base. This dimensional expansion allows the antenna to occupy space that does not interfere with the operator compartment, simultaneously achieving safe distance and effective space utilization.
2Object-affected harmful factors
If the antenna is placed on the outer side of the driving base to reduce radio wave influence, then operator safety is improved, but space utilization becomes more difficult
Solution Approach 1:
The solution applies local quality by specifically utilizing the outer side region of the driving base as the designated antenna placement zone. This localized area, which is naturally positioned away from the operator compartment, is optimized for antenna installation, thereby achieving both operator protection and efficient use of available external space.
Solution Approach 2:
The air conditioning duct serves as an intermediary structure that facilitates antenna placement on the outer side of the driving base. By integrating the antenna with the existing air conditioning duct system, the solution leverages available structural elements to achieve proper antenna positioning without requiring additional complex mounting mechanisms, thus simplifying space utilization.
3Device complexity
If the antenna is integrated with the air conditioning duct to simplify structure, then device complexity is reduced, but the antenna placement flexibility is constrained
Solution Approach 1:
The air conditioning duct is given multi-functionality by serving both its original purpose of air flow distribution and as a structural support for antenna placement. This universal utilization of the duct system reduces the need for separate antenna mounting structures, simplifying overall device complexity while maintaining adequate placement flexibility through the duct's extended configuration.
Data Source
AI summary
A construction machine including a wireless communication antenna that is provided in a driving unit having a driving base as a base part, the construction machine including a driver's seat that is provided on the driving base, and a right side work operation lever that is placed on one of left and right sides of the driver's seat, wherein the antenna is placed at a position that is located in front of the right side work operation lever in a front-rear direction and that is located on an outer side of the right side work operation lever and on an inner side of an edge of the driving base in a left-right direction.