Portable Terminal Orientation Switching for Vehicle Control
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Solution Overview
Problem
The operability of vehicle control systems using portable terminals is influenced by the operator's preference and situational differences in holding and operation modes, leading to inefficiencies.
Innovation Solution
A portable terminal equipped with sensors and a touch panel that detects inclination and touch operations, allowing it to switch between two operation modes based on the terminal's orientation, enabling tilt and touch-based control methods for vehicle steering and speed adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the portable terminal uses a fixed operation mode, then the system structure is simple, but the operability cannot be adapted to different operator preferences and situations
Solution Approach 1:
The system dynamically switches between first and second operation modes based on the detected holding orientation of the portable terminal. The processor automatically selects the appropriate operation mode (first mode for landscape orientation, second mode for portrait orientation) in real-time, making the system adaptive to different operator preferences and usage situations without requiring manual configuration
Solution Approach 2:
The portable terminal automatically detects its own holding orientation using the sensor and autonomously selects the appropriate operation mode without requiring operator intervention. The system self-adjusts by comparing the detected orientation with predefined orientation information and automatically switching modes, reducing the cognitive load on the operator
2Adaptability or versatility
If the portable terminal supports multiple operation modes, then the adaptability to different preferences and situations is improved, but the complexity of controlling and switching modes increases
Solution Approach 1:
The sensor continuously provides feedback about the holding orientation of the portable terminal to the processor. This feedback mechanism enables the system to automatically detect changes in orientation and switch between operation modes accordingly, creating a closed-loop control system that adapts to operator behavior without requiring explicit mode selection commands
Solution Approach 2:
The patent replaces manual mode selection (mechanical interaction) with automatic sensor-based detection and processor-driven mode switching. Instead of requiring operators to manually switch between operation modes through buttons or menus, the system uses sensors to detect holding orientation and automatically selects the appropriate mode, reducing control complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the operability of vehicle control systems by allowing operators to choose holding and operation methods that suit their preferences, improving safety and usability.
Implementation Method 1
a sensor that detects an inclination direction and an inclination angle of the portable terminal
Data Source
AI summary
The portable terminal is operated by an operator to operate the vehicle, and performs wireless communication with the vehicle. The portable terminal includes a sensor, a touch panel, and a processor. The sensor detects an inclination direction and an inclination angle of the portable terminal. The touch panel includes a display screen and detects touch of an operator on the display screen. The processor selects one of the first and second operation methods corresponding to the first and second holding methods of the portable terminal by the operator based on orientation information, generates travel control information for vehicle travel control based on the tilting operation of tilting the portable terminal during selection of the first operation method, and generates travel control information based on the tilting operation and the touch operation to a predetermined position on the display screen during selection of the second operation method.