Integrated Positioning Apparatus with Switching Module
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Solution Overview
Problem
The global positioning system (GPS) faces inaccuracies in detecting moving directions, especially at low speeds or in environments with weak or interrupted signals, such as high-rise buildings, leading to navigation disruptions.
Innovation Solution
An integrated positioning apparatus that combines a satellite positioning module with an inertial positioning module using a switching module, allowing the system to switch between satellite and inertial positioning information based on control signals, ensuring continuous navigation data even under adverse conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite positioning module is used for navigation, then positioning information can be obtained, but the navigation accuracy deteriorates when satellite signals are weak or interrupted
Solution Approach 1:
The patent combines satellite positioning module and inertial positioning module into an integrated navigation system. The switching module selectively connects either the satellite positioning module or the inertial positioning module to the processing module based on signal conditions, ensuring continuous and accurate navigation information under various environmental conditions.
Solution Approach 2:
The switching module acts as an intermediary between the satellite positioning module, inertial positioning module, and processing module. It monitors signal conditions and automatically switches between positioning sources, ensuring that the processing module always receives reliable positioning data regardless of satellite signal availability.
2Measurement precision
If GPS is used to detect moving direction, then position information can be obtained, but the moving direction detection becomes inaccurate when object velocity is slow or object is at halt
Solution Approach 1:
The patent integrates satellite positioning module with inertial positioning module that includes inertial detection module and magnetic detection apparatus. The inertial detection module uses accelerometers to detect motion and the magnetic detection apparatus (electronic compass) to detect direction, providing accurate moving direction information even when the object is stationary or moving slowly, complementing the satellite positioning data.
Data Source
AI summary
An integrated positioning apparatus includes a processing module, a satellite positioning module, an inertial positioning module, a transmission interface and a switching module. The processing module is utilized for executing a navigation program. The satellite positioning module functions to provide satellite positioning information. The inertial positioning module is used for generating inertial positioning information. The switching module is connected between the processing module and the transmission interface for receiving a control signal furnished by the processing module and is selectively switched to a first status or a second status based on the control signal. While in the first status, the switching module drives the transmission interface to connect to the satellite positioning module so as to transmit the satellite positioning information to the processing module for navigating. While in the second status, the switching module drives the transmission interface to connect to the inertial positioning module so as to transmit the inertial positioning information to the processing module for navigating.