Terminal Holding Device with Acceleration Sensor for Smartphone Navigation
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Solution Overview
Problem
Smartphones, lacking built-in gyro sensors, cannot effectively utilize acceleration data when installed in vehicles for navigation and image capturing, leading to inaccuracies in navigation and image orientation.
Innovation Solution
A terminal holding device with an attaching unit for vehicles, a holding unit that exposes the smartphone's display, an acceleration sensor to detect side-to-side acceleration, and a supplying unit to send this data to the smartphone, allowing it to perform navigation and image correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a smartphone is installed in a vehicle for navigation use, then the device can be used as a navigation system, but the lack of built-in gyro sensor and acceleration data leads to inaccurate navigation and image orientation
Solution Approach 1:
The patent combines the smartphone with the terminal holding device by integrating an acceleration sensor into the holding device. The acceleration sensor detects acceleration in the vertical direction (upward from the contact surface), and this detection signal is supplied to the smartphone. This merging allows the smartphone to access acceleration data it would otherwise lack, improving navigation accuracy without requiring the smartphone itself to have built-in sensors.
Solution Approach 2:
The terminal holding device acts as an intermediary between the vehicle environment and the smartphone. It provides the acceleration detection function that the smartphone lacks, bridging the gap between the smartphone's limited sensor capabilities and the navigation system's requirements for accurate orientation and position data.
2Device complexity
If a smartphone without gyro sensor is used for navigation, then device complexity is reduced, but measurement precision of acceleration and orientation deteriorates
Solution Approach 1:
The patent extracts the acceleration sensing function from the smartphone and places it in the terminal holding device. The holding device includes a contact surface that contacts the smartphone and an acceleration sensor that detects acceleration in the vertical direction. This extraction allows the smartphone to remain simple while the holding device provides the necessary sensing capability.
3Measurement precision
If acceleration sensor is added to terminal holding device, then navigation accuracy is improved, but device complexity increases
Solution Approach 1:
The terminal holding device is designed to serve multiple functions: it holds the smartphone securely via the contact surface, provides acceleration detection through the integrated sensor, and supplies this data to the smartphone. This multi-functionality justifies the added complexity by delivering tangible navigation accuracy improvements.
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
Enables smartphones to perform accurate navigation and image capturing by providing necessary acceleration data, correcting image orientation and ensuring proper navigation directions.
Implementation Method 1
an acceleration sensor which detects acceleration in a direction from a side of the contact surface to a side opposite to the contact surface
Data Source
AI summary
The terminal holding device includes an attaching unit to be attached to a vehicle, a holding unit which removably holds a terminal device in such a manner that a display unit of the terminal device is exposed and which includes a contact surface to be contact with the terminal device, an acceleration sensor which detects acceleration in a direction from a side of the contact surface to a side opposite to the contact surface, and a supplying unit which supplies a detection signal of the acceleration sensor to the terminal device.