SYSTEM AND PROCEDURE FOR HIGH-SPEED POSITIONING WITH MOBILE EMITTERS TYPE LEDS AND STATIC RECEIVERS TYPE PHOTODIODES IN QUADRANTS (Machine-translation by Google Translate, not legally binding)

• Main Authors: Villadangos Carrizo, José Manuel, Jiménez Martín, Ana, Hernández Alonso, Alvaro, Aparicio Esteve, Elena, García Domínguez, Juan Jesús, Ureña Ureña, Jesús, Pérez Rubio, María del Carmen
• Format: Patent
• Language: English; Spanish
• Published: 04.05.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

This invention describes a high-speed optical positioning system (visible and infrared) based on LED-type mobile emitters and static receivers consisting of quadrant-organized photodiode arrays (QADA type). The emitters transmit simultaneously without mutual interference through the use of coding and modulation techniques. In the receivers, an aperture with a known geometric shape is used, preferably square, which allows, based on the measurement of the illuminated areas in the photodiodes, to estimate the angles of arrival (or impact) of the light beams in each receiver. Finally, and for those environments with at least 2 conveniently distributed receivers, the 3D position of the LED emitter is obtained by triangulation. Besides, (Machine-translation by Google Translate, not legally binding) Esta invención describe un sistema de posicionamiento óptico (visible e infrarrojos) de alta velocidad basado en emisores móviles tipo LED y receptores estáticos consistentes en arrays de fotodiodos organizados en cuadrantes (tipo QADA). Los emisores transmiten simultáneamente sin interferencia mutua mediante el empleo de técnicas de codificación y modulación. En los receptores se emplea una apertura con una forma geométrica conocida, preferentemente cuadrada, que permita a partir de la medida de las zonas iluminadas en los fotodiodos estimar los ángulos de llegada (o de impacto) de los haces de luz en cada receptor. Finalmente, y para aquellos entornos con al menos 2 receptores convenientemente distribuidos, se obtiene la posición 3D del emisor LED mediante triangulación. Además, en el caso de que un objeto o persona dispongan de al menos 3 emisores LED dispuestos en una configuración geométrica conocida, se determina la pose 3D de dicho objeto o persona.