Mobile Radio Transceiver for Accurate Range and Angle Determination
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Solution Overview
Problem
Existing RF-based location determination systems require extensive setup and calibration, are costly, and complex, especially for temporary or mobile installations, due to the need for multiple static receivers and detailed surveys.
Innovation Solution
A system using a primary radio transceiver and a limited number of auxiliary receivers, arranged in a spatially diverse pattern, transmitting and receiving ultra-wide band signals, with a processing unit to calculate the range, direction, and elevation of a target object, allowing for reduced setup time and complexity by eliminating the need for detailed surveys and supporting temporary or mobile installations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple static receivers are dispersed throughout the space, then location determination accuracy is improved, but system complexity and installation time increase
Solution Approach 1:
The patent combines multiple receiver functions into a single mobile receiver that can be positioned at different locations. Instead of deploying multiple static receivers throughout the space, one receiver is moved to various positions to collect signal data, thereby reducing system complexity while maintaining location determination capability
Solution Approach 2:
The patent transitions from static receivers to a dynamic mobile receiver that can be repositioned. The mobile receiver moves to different locations within the space to collect timing data from multiple vantage points, enabling location determination without requiring multiple permanently installed receivers
2Measurement precision
If multiple static receivers are dispersed throughout the space, then location determination accuracy is improved, but installation time increases
Solution Approach 1:
The patent merges the functionality of multiple receivers into a single mobile unit that performs multiple measurement tasks. By consolidating receivers into one mobile device, the installation process is simplified and time is reduced, as only one receiver needs to be deployed and configured
Solution Approach 2:
The system performs preliminary calibration and setup procedures once during initial installation of the single mobile receiver. This preliminary action establishes the reference framework that enables subsequent location determinations without requiring repeated installation or calibration of multiple receivers
3Measurement precision
If multiple static receivers are dispersed throughout the space, then location determination accuracy is improved, but system cost increases
Solution Approach 1:
The patent merges multiple receiver functions into a single mobile receiver, reducing the quantity of hardware required. By using one receiver that can be positioned at different locations, the system eliminates the need to purchase and install multiple separate receiver units, thereby reducing overall system cost
4Measurement precision
If a detailed survey is conducted for receiver placement, then location determination accuracy is improved, but setup complexity increases
Solution Approach 1:
The patent uses a mobile receiver that can dynamically position itself at different locations without requiring pre-planned fixed positions. This eliminates the need for detailed surveys to determine optimal receiver placements, as the mobile receiver can adaptively collect data from various positions throughout the space
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
This solution simplifies the setup and reduces costs by enabling easier installation and tracking of objects within a space, allowing for accurate range, direction, and elevation determination with fewer receivers, and supports temporary or mobile configurations.
Implementation Method 1
The primary radio transceiver and at least one auxiliary radio receiver transmit and receive ultra-wide band signals
Implementation Method 2
calculating a first distance (dtp) between the primary radio transceiver and the target object based on the acquired timing data using two way ranging algorithms
Data Source
AI summary
A system and method for determining the range, angle, and elevation of a target object having a radio transceiver relative to a known location is provided. The system includes a primary radio transceiver located an initially unknown distance from the target object, and at least one auxiliary radio receiver located a known distance and angle relative to a reference bearing from the primary radio transceiver. The system further includes a processing unit in communication with the primary radio transceiver and at least one auxiliary receiver. The processing unit is capable of calculating the range between the primary and the target object and the angle to the target object relative to the reference bearing. The method includes the steps of: (1) acquiring range data between at least a primary radio transceiver of the system and the target object using two way ranging; (2) transmitting the range data to a processing unit that is in communication with the primary radio transceiver and at least one auxiliary radio receiver; (3) calculating the range between the primary radio transceiver and the target object using two way ranging algorithms at the processing unit; (4) acquiring time of arrival data for signals exchanged between the target object and the at least one auxiliary radio receiver; and (5) determining the angle of the target object relative to a reference bearing from the primary radio transceiver of the system by running the time of arrival data from the tracked object through an algorithm.