Positioning Accuracy Optimization via Radio Appliance Parameter Adjustment

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Solution Overview

Problem

Conventional positioning systems for mobile radio appliances face challenges in achieving high precision positioning accuracy due to noise and interference, leading to non-covered areas and reduced communication distances, which complicates the design of communication systems intended for both communication and positioning purposes.

Innovation Solution

A method that determines the installation positions of fixed radio appliances by optimizing communication quality factors such as origination intensity, angle gain, noise, receiver sensitivity, inclination, height, and delay to ensure the positioning-possible region covers the entire to-be-positioned area, thereby enhancing positioning accuracy and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If the system is designed to cover the area as widely as possible, then the positioning area is improved, but the positioning accuracy deteriorates

Engineering Contradiction:

Improvepositioning areaVSAvoidpositioning accuracy

Core Design Contradiction:

Area of stationary objectVSMeasurement precision

Solution Approach 1:

The patent applies dynamics by making the radio appliance characteristics adjustable rather than fixed. The origination intensity, angle gain, and other parameters can be dynamically optimized based on the specific positioning requirements and environmental conditions, allowing the system to adapt between covering large areas and achieving high precision positioning depending on the operational context

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent utilizes parameter changes by systematically optimizing multiple radio appliance characteristics including origination intensity, angle gain, receiver sensitivity, inclination, height, and delay. By adjusting these parameters, the system can achieve both wide coverage and high positioning accuracy, resolving the contradiction between area coverage and positioning precision

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If the communication distance is minimized to reduce noise and interference, then the positioning accuracy is improved, but the positioning area is reduced

Engineering Contradiction:

Improvepositioning accuracyVSAvoidpositioning area

Core Design Contradiction:

Measurement precisionVSArea of stationary object

Solution Approach 1:

The patent applies local quality by optimizing radio appliance characteristics specifically for positioning purposes rather than using general communication parameters. Each radio appliance is configured with localized optimization of origination intensity, angle gain, and other parameters tailored to the positioning requirements, enabling high accuracy without necessarily minimizing communication distance

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system dynamically adjusts parameters based on positioning needs versus communication needs. When positioning accuracy is the priority, the system optimizes for shorter effective communication distances with higher signal precision. When area coverage is priority, it expands coverage while maintaining acceptable accuracy through parameter optimization

Inventive Principle:

Principle #15Dynamics

3Area of stationary object

If the system is designed for maximum communication coverage, then the positioning area is improved, but the positioning accuracy deteriorates due to noise and interference

Engineering Contradiction:

Improvepositioning areaVSAvoidpositioning accuracy

Core Design Contradiction:

Area of stationary objectVSMeasurement precision

Solution Approach 1:

The patent systematically optimizes multiple parameters including origination intensity, angle gain, receiver sensitivity, inclination, height, and delay to achieve both wide coverage and high accuracy. By adjusting these parameters, the system can maintain high positioning accuracy even across large coverage areas where noise and interference would typically degrade performance

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent applies preliminary action by pre-optimizing radio appliance characteristics before deployment for positioning purposes. The system determines optimal parameters in advance based on the intended positioning area and accuracy requirements, allowing the system to achieve both wide coverage and high precision without suffering from noise and interference that would affect systems designed for maximum communication coverage

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8265635B2Method for determining positioning accuracy based on origination and receiving terminals and positioning device and program therefor

Publication Date: 2012.09.11 NEC CORP

AI summary

In a method of designing the positioning system for positioning a reference point from a required positioning accuracy and a required positioning area by using a radio appliance, a maximum value and a minimum value of a plurality of fluctuation factors, which cause the positioning system to fluctuate, are set, a communication characteristic of the fixed radio appliance is calculated from the minimum value of the fluctuation factor and the required positioning accuracy, and a characteristic of the fixed radio appliance and an installation position of the fixed radio appliance are calculated from the calculated characteristic of the installed appliance, the maximum value of the fluctuation factor, and the required positioning area.