Modulated Light Geolocation Device for Precise Nearby Area Identification
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Solution Overview
Problem
Existing technologies for identifying and locating areas or objects in a nearby environment are imprecise and require complex equipment, especially at distances of several meters, due to non-directional signal emission and the need for the receiver device to determine its own position.
Innovation Solution
A geolocation device using modulated light radiation from multiple emission sources connected to the electrical mains, with a portable receiver device capable of demodulating the light to generate precise location and identification information, eliminating the need for complex equipment on the receiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If radio beacons (i-Beacons) are used for identification and location, then the transmission range is extended, but the location precision deteriorates because signals are emitted in all directions in space
Solution Approach 1:
The patent applies asymmetry by using the directional nature of light radiation instead of omnidirectional radio waves. Each light radiation emission source emits light in a specific direction with a defined emission cone, creating an asymmetric radiation pattern that enables precise angular measurement and thus precise location determination while maintaining extended transmission range.
Solution Approach 2:
The patent replaces the radio wave-based electromagnetic system with a light-based electromagnetic system. By substituting radio beacons with light radiation emission sources (such as LEDs), the system achieves both extended range and improved precision because light can be highly directional and carries more information through modulation techniques.
2Device complexity
If optical codes (QR codes, bar codes) are used for identification, then the equipment complexity is reduced, but the transmission range and location precision deteriorate because significant proximity is required
Solution Approach 1:
The patent applies universality by making the portable receiver device perform multiple functions: it can detect light radiation, demodulate the embedded signals, determine its own position, calculate relative positions of emission sources, and provide both identification and location information. This multi-functional approach replaces multiple separate systems (optical code reader, GPS receiver, distance meter) with a single integrated device.
Solution Approach 2:
The patent applies preliminary action by pre-modulating the light radiation with identification information and position data before emission. The emission sources are equipped with systems that determine their own geospatial positions in advance, and this information is embedded in the light signals, so the receiver only needs to detect and process the pre-prepared information without performing complex real-time calculations.
3Measurement precision
If the receiver device determines its own geospatial position and relative positions of sources, then the location information can be generated, but the receiver device complexity increases with on-board positioning systems and computational intelligence
Solution Approach 1:
The patent applies self-service by making the emission sources determine their own geospatial positions and embed this information in their light radiation signals. Each emission source is equipped with positioning capabilities and autonomously provides its location data, eliminating the need for the receiver device to perform complex real-time triangulation or multilateration calculations.
Solution Approach 2:
The patent applies preliminary action by pre-calculating and embedding position information in the emitted light signals. The emission sources determine their positions in advance and include this data in the modulated light, so the receiver device only needs to extract and process this pre-prepared information rather than performing complex real-time position determination.
4Device complexity
If RFID radio tags are used for identification, then the equipment simplicity is improved, but the transmission range deteriorates to only a few centimeters, preventing location at distances of several meters
Solution Approach 1:
The patent replaces the RFID radio frequency electromagnetic system with a visible light electromagnetic system. By substituting RFID tags with light radiation emission sources (such as LEDs), the system achieves both simplicity and extended range because light can be emitted in directional beams over long distances while still carrying modulated identification information.
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
Enables precise location and identification of areas or objects at distances of several meters with a simple and economical receiver device, reducing imprecision and uncertainty by leveraging modulated light interference and directivity.
Implementation Method 1
each light radiation emission source being connected to the electrical mains by a driving circuit and configured to emit a modulated light radiation
Implementation Method 2
emit a modulated light radiation, each area being equipped with such a light radiation emission source, the light radiation emitted by each light radiation emission source being representative of a unique characteristic
Implementation Method 3
a portable receiver device capable of receiving and processing the light radiation emitted by the light radiation emission sources
Implementation Method 4
configured to generate, for each received light radiation and by demodulation processing from said light radiation, an identification and location information
Data Source
AI summary
The invention relates to an identification and location device for remotely locating and identifying predetermined areas (Z) belonging to a nearby environment, the identification and location device comprising: —a plurality of light radiation emission sources(S) located in predetermined areas (Z), each light radiation emission source(S) being connected to the electrical mains by a control circuit and configured to emit modulated light radiation (L), —a portable receiver device (R) which is capable of receiving and processing the light radiation (L) emitted by the light radiation emission sources(S) and which is configured to generate an item of identification and location information relating to the predetermined area (Z). The invention also relates to an identification and location method for remotely locating and identifying predetermined areas (Z) belonging to a nearby environment.