Rotating Laser Plane Emitter for Indoor Positioning Accuracy
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Solution Overview
Problem
Current outdoor positioning technologies are inadequate for indoor positioning due to limitations in accuracy and complexity, leading to high costs and complex device configurations.
Innovation Solution
A positioning system that includes a rotating laser plane emitting unit, a distance measuring device, and a synchronization device, which converts a line laser signal into two laser plane signals with a preset angle to scan a space and determine the position of a device, simplifying the structure, reducing costs, and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If outdoor positioning technology is applied to indoor positioning, then positioning coverage is achieved, but positioning accuracy deteriorates due to limitations in positioning time and complicate indoor environment
Solution Approach 1:
The patent divides the positioning system into two distinct modes: outdoor positioning using satellite signals and indoor positioning using laser plane scanning. This segmentation allows each mode to use optimized technologies suitable for its specific environment, thereby maintaining high accuracy in both scenarios without mutual interference
Solution Approach 2:
The patent transitions from two-dimensional GPS coordinate positioning to three-dimensional spatial positioning using laser plane scanning. By introducing the vertical dimension through rotating laser planes, the system achieves precise indoor positioning in complex environments where traditional outdoor positioning fails
2Adaptability or versatility
If indoor positioning solutions such as indoor GPS, infrared, or Bluetooth are used, then positioning functionality is achieved, but device complexity increases and manufacturing cost rises
Solution Approach 1:
The patent makes the base station universal by enabling it to perform both outdoor satellite positioning and indoor laser positioning functions. The base station integrates multiple positioning capabilities into a single device, eliminating the need for separate indoor positioning systems and reducing overall device complexity
Solution Approach 2:
The patent replaces complex electronic positioning systems (indoor GPS, infrared, Bluetooth) with a simpler optical-mechanical system using rotating laser planes. This substitution achieves positioning functionality through geometric scanning rather than complex signal processing, thereby reducing device complexity
3Adaptability or versatility
If indoor positioning solutions such as indoor GPS, infrared, or Bluetooth are used, then positioning functionality is achieved, but manufacturing cost increases
Solution Approach 1:
The base station is designed as a universal positioning device that can serve both outdoor and indoor environments. By integrating multiple positioning functions into one device, the patent eliminates the need for manufacturers to produce separate indoor positioning systems, thereby reducing manufacturing costs through economies of scale and component sharing
Solution Approach 2:
The patent uses affordable laser emitting units and gratings that can be easily manufactured and replaced. These optical components are relatively inexpensive compared to specialized indoor positioning hardware, making the overall system more cost-effective for manufacturing and deployment
4Device complexity
If a single laser plane is used for scanning, then device structure is simple, but positioning accuracy deteriorates due to limited spatial coverage
Solution Approach 1:
The patent divides the laser scanning system into multiple laser planes (typically three planes at different angles) that scan different spatial sectors. This segmentation of the scanning function across multiple planes provides comprehensive spatial coverage and redundant measurement paths, significantly improving positioning accuracy while keeping each individual laser unit simple
Solution Approach 2:
The patent enhances the scanning system by introducing multiple laser planes that rotate around the vertical axis, creating a three-dimensional scanning pattern. This multi-planar approach adds spatial dimensions to the scanning coverage, enabling accurate positioning in complex indoor environments without requiring complex individual laser structures
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
The system achieves high positioning accuracy and cost-effectiveness while being suitable for both outdoor and indoor positioning, simplifying the structure and reducing manufacturing costs.
Implementation Method 1
The emission grating is configured to convert the line laser signal emitted from the laser source to the two laser plane signals having a preset angle therebetween
Implementation Method 2
The distance measuring device is configured to emit a distance measuring signal. The distance measuring signal is configured to measure a distance between the positioning base station and a device to be positioned
Data Source
AI summary
Provided is a positioning base station includes: a rotating laser plane emitting unit, a distance measuring device and a synchronization device. The rotating laser plane emitting unit is configured to rotate around a rotation axle, and emit two laser plane signals having a preset angle therebetween. The two laser plane signals are configured to scan a space. The distance measuring device is configured to emit a distance measuring signal configured to measure a distance between the positioning base station and a device to be positioned. The synchronization device is configured to transmit a synchronization signal configured to synchronize time of the positioning base station and the device to be positioned.