Stationary Device Position Data Transmission for Mobile Devices
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Solution Overview
Problem
Mobile communication devices face challenges in accurately determining their position with minimal computing power and energy consumption, often resulting in errors due to software discrepancies and insufficient GPS accuracy.
Innovation Solution
A method and system where predetermined position information is stored in a stationary communication device and transmitted to a movable device upon contact, utilizing geometric parameters like coupling path and approach direction, allowing the movable device to determine its position without processing power, using radio communication protocols like NFC or Bluetooth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If position determination calculations are performed by the mobile communication device itself, then position information can be determined, but processor power is consumed and energy is used
Solution Approach 1:
A stationary communication device acts as an intermediary that pre-calculates and stores position information based on geometric parameters. When a mobile device approaches, the stationary device transmits the pre-calculated position information, eliminating the need for the mobile device to perform energy-consuming calculations while maintaining position determination accuracy.
Solution Approach 2:
Position information is pre-calculated and stored in the stationary communication device before the mobile device arrives. The stationary device uses predetermined geometric parameters (coupling path, approach direction) to compute position data in advance, so that when contact is made, the mobile device receives ready-made position information without needing to perform real-time calculations.
2Measurement precision
If GPS receiver is used for position determination, then position information can be obtained, but GPS position accuracy and availability are often insufficient
Solution Approach 1:
Instead of relying on GPS signals which may be inaccurate or unavailable, the system creates a copy of position information based on predetermined geometric parameters stored in the stationary device. This copied position information is transmitted to the mobile device, providing reliable and accurate position data independent of GPS signal quality or availability.
3Measurement precision
If different software versions are used for position calculations, then position information can be determined, but different results can be obtained due to errors in calculation software
Solution Approach 1:
The stationary communication device serves as a centralized intermediary that performs all position calculations using consistent software and predetermined geometric parameters. This eliminates the problem of different mobile devices using different software versions and producing inconsistent results, as all position information originates from a single reliable source.
4Measurement precision
If onboard GPS receiver is equipped in mobile device, then position can be determined, but computing power and processing requirements increase
Solution Approach 1:
The position determination calculation function is extracted from the mobile device and relocated to the stationary communication device. The mobile device only needs to receive and use the pre-calculated position information, eliminating the need for complex onboard GPS receivers and associated processing power, thereby reducing device complexity while maintaining position determination capability.
Data Source
AI summary
The invention relates, among other things, to a system (10) for providing position information to a mobile communication device (30) that can approach a stationary communication device (20). For this purpose, at least one predetermined position information for at least one mobile communication device (30) is stored in a stationary communication device (20), which is transmitted from the stationary communication device (20) to the mobile communication device (30) precisely when the mobile communication device (30) electrically pairs or couples with the stationary communication device (20). The predetermined position information preferably takes into account the geometric environment of the stationary communication device (20) and physical quantities dependent on the mobile and/or stationary communication device, such as the wireless communication chips (24, 25, 34, 35) used.